/* ============================================================
   CORE TOKENS
   ============================================================ */
:root {
  /* Element family colors — each with base + glow */
  --fire-base: #ff5e3a;
  --fire-deep: #8b2010;
  --fire-glow: rgba(255, 94, 58, 0.4);

  --water-base: #4a9eff;
  --water-deep: #1a3a6e;
  --water-glow: rgba(74, 158, 255, 0.4);

  --air-base: #ffd166;
  --air-deep: #8b6914;
  --air-glow: rgba(255, 209, 102, 0.35);

  --earth-base: #7cb342;
  --earth-deep: #2d4a14;
  --earth-glow: rgba(124, 179, 66, 0.35);

  --source-base: #c77dff;
  --source-deep: #4a1a6e;
  --source-glow: rgba(199, 125, 255, 0.4);

  /* Cosmic background */
  --bg-deep: #07070f;
  --bg-mid: #0d0d1c;
  --bg-soft: #14142b;
  --bg-card: rgba(20, 20, 43, 0.6);
  --bg-card-hover: rgba(30, 30, 60, 0.8);

  /* Text */
  --text-bright: #f4f1e8;
  --text-soft: #d8d3c5;
  --text-muted: #8b8578;
  --text-dim: #5a5648;

  /* Accents */
  --accent-gold: #c9a961;
  --accent-copper: #b87333;
  --line-soft: rgba(201, 169, 97, 0.15);
  --line-mid: rgba(201, 169, 97, 0.3);

  /* Fonts */
  --font-display: 'Cormorant Garamond', 'Iowan Old Style', Georgia, serif;
  --font-body: 'Manrope', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;

  /* ============================================================
     LIQUID GLASS (Apple iOS/macOS 26 inspired)
     ============================================================ */
  /* Surface tints — picked up via backdrop-filter saturate() */
  --lg-surface:        rgba(14, 14, 24, 0.45);       /* main glass body */
  --lg-surface-strong: rgba(14, 14, 24, 0.62);       /* drawer / modal headers */
  --lg-surface-clear:  rgba(255, 255, 255, 0.035);   /* near-transparent variant */
  --lg-tint-warm:      rgba(201, 169, 97, 0.06);     /* warm gold tint */
  --lg-tint-cool:      rgba(74, 158, 255, 0.05);     /* cool blue tint */

  /* Edges — specular highlight on top, soft bottom shadow */
  --lg-edge-top:    rgba(255, 255, 255, 0.18);       /* the light catching the edge */
  --lg-edge-soft:   rgba(255, 255, 255, 0.06);       /* faint side edges */
  --lg-edge-gold:   rgba(201, 169, 97, 0.32);        /* accented gold edge */
  --lg-border:      rgba(255, 255, 255, 0.10);       /* default outer border */

  /* Shadows — depth + halo */
  --lg-shadow-hover: 0 14px 48px rgba(0, 0, 0, 0.55), 0 1px 0 0 var(--lg-edge-top) inset;
  --lg-shadow-rest:  0  8px 32px rgba(0, 0, 0, 0.40), 0 1px 0 0 var(--lg-edge-top) inset;
  --lg-shadow-deep:  0 22px 60px rgba(0, 0, 0, 0.65), 0 1px 0 0 var(--lg-edge-top) inset;

  /* Backdrop filter shorthand (compose: blur saturate) */
  --lg-backdrop:     blur(22px) saturate(180%) brightness(105%);
  --lg-backdrop-lite: blur(14px) saturate(150%);
}

/* 12D Raumschiff ambient drift — body-level cosmic dust layer
   that drifts slowly behind everything. Very low opacity so it never
   competes with content. Honors reduced-motion. */
body::after {
  content: '';
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    radial-gradient(2px 2px at 10% 12%,  rgba(201,169,97,.30), transparent 60%),
    radial-gradient(1px 1px at 23% 75%,  rgba(244,241,232,.20), transparent 60%),
    radial-gradient(1.5px 1.5px at 48% 22%, rgba(155,123,216,.22), transparent 60%),
    radial-gradient(1px 1px at 71% 88%,  rgba(79,229,229,.22),  transparent 60%),
    radial-gradient(1.5px 1.5px at 89% 38%, rgba(244,241,232,.18), transparent 60%),
    radial-gradient(1px 1px at 33% 53%,  rgba(201,169,97,.16),  transparent 60%);
  background-size: 100% 100%;
  opacity: .55;
  animation: lg-drift 90s ease-in-out infinite;
}
@keyframes lg-drift {
  0%, 100% { transform: translate3d(0, 0, 0); opacity: .55; }
  50%      { transform: translate3d(-1.5%, -1%, 0); opacity: .35; }
}
@media (prefers-reduced-motion: reduce) {
  body::after { animation: none; opacity: .35; }
}

/* ============================================================
   RESET & BASE
   ============================================================ */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text-soft);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
}

/* Cosmic background with subtle nebula */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 10%, rgba(199, 125, 255, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(74, 158, 255, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(255, 94, 58, 0.03) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* Subtle starfield */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 20% 30%, white, transparent),
    radial-gradient(1px 1px at 60% 70%, white, transparent),
    radial-gradient(1px 1px at 80% 10%, white, transparent),
    radial-gradient(1px 1px at 30% 80%, white, transparent),
    radial-gradient(1px 1px at 90% 50%, white, transparent),
    radial-gradient(1px 1px at 10% 60%, white, transparent),
    radial-gradient(1px 1px at 70% 20%, white, transparent),
    radial-gradient(1px 1px at 40% 40%, white, transparent);
  background-size: 600px 600px;
  opacity: 0.15;
  pointer-events: none;
  z-index: 0;
}

main, header, section, footer {
  position: relative;
  z-index: 1;
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  padding: 1.5rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--line-soft);
  background: rgba(7, 7, 15, 0.7);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 90;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
body.module-scrolled .site-header {
  transform: translateY(-100%);
  pointer-events: none;
}

.site-header .brand {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--text-bright);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.site-header .brand .sigil {
  font-size: 1.2rem;
  color: var(--accent-gold);
}

.site-header nav {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.site-header nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.2s;
}

.site-header nav a:hover {
  color: var(--accent-gold);
}

.lang-toggle {
  display: flex;
  gap: 0.3rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  border: 1px solid var(--line-mid);
  border-radius: 999px;
  padding: 0.25rem;
}

.lang-toggle button {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  font-family: inherit;
  font-size: inherit;
  letter-spacing: 0.1em;
  transition: all 0.2s;
}

.lang-toggle button.active {
  background: var(--accent-gold);
  color: var(--bg-deep);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding: 8rem 2rem 6rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image: url('hero-cosmic-table.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.55;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at center, transparent 0%, var(--bg-deep) 85%),
    linear-gradient(180deg, rgba(7,7,15,0.4) 0%, rgba(7,7,15,0.7) 70%, var(--bg-deep) 100%);
  z-index: 1;
}

.hero-inner {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.1s forwards;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.8rem);
  font-weight: 400;
  line-height: 1.05;
  color: var(--text-bright);
  margin-bottom: 1.5rem;
  letter-spacing: -0.01em;
  opacity: 0;
  animation: fadeUp 0.8s 0.3s forwards;
}

/* v24 · Kinetic chromatic gradient on the italic — slow shifting rainbow
   sheen anchored in the gold accent. Animates on a 14s cycle, mostly
   subtle but legible as motion in the user's peripheral vision. */
.hero h1 em {
  font-style: italic;
  font-weight: 400;
  background: linear-gradient(
    100deg,
    #c9a961 0%,      /* gold base */
    #f4d28a 14%,     /* warm gold */
    #b87333 28%,     /* copper */
    #c9a961 42%,     /* gold again — return to baseline */
    #9d6bd8 56%,     /* iodine purple — rainbow visit */
    #4a9eff 70%,     /* oxygen blue */
    #c9a961 85%,     /* back to gold */
    #f4d28a 100%
  );
  background-size: 220% 100%;
  background-position: 0% 50%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  animation: hero-em-shimmer 14s ease-in-out infinite;
  filter: drop-shadow(0 0 18px hsla(45, 75%, 60%, 0.18));
}
@keyframes hero-em-shimmer {
  0%, 100% { background-position: 0% 50%; }
  50%      { background-position: 100% 50%; }
}

/* Pause when the hero is off-screen — already gated by SectionReveal,
   but the hero is special since it's above-the-fold. We explicitly
   pause when SectionReveal hasn't marked it in-view yet. */
.hero:not(.in-view):not(.revealed) h1 em { animation-play-state: paused; }

.hero .lede {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--text-soft);
  max-width: 680px;
  margin: 0 auto 2rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.5s forwards;
}

.hero .meta-line {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: flex;
  gap: 2rem;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s 0.7s forwards;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   LEGEND / FILTERS
   ============================================================ */
.legend-section {
  padding: 3rem 2rem 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.legend-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-style: italic;
  text-align: center;
  color: var(--text-bright);
  margin-bottom: 2rem;
  font-weight: 400;
}

.legend-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  max-width: 1200px;
  margin: 0 auto;
}

.legend-card {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  padding: 0;
  cursor: pointer;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
  text-align: left;
  font-family: inherit;
  color: inherit;
  display: flex;
  flex-direction: column;
}

.legend-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--card-color);
  z-index: 3;
}

.legend-card .image-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
}

.legend-card .image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease, filter 0.4s ease;
  filter: brightness(0.85) saturate(1.1);
}

.legend-card:hover .image-frame img,
.legend-card.active .image-frame img {
  transform: scale(1.04);
  filter: brightness(1) saturate(1.2);
}

.legend-card .image-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(7,7,15,0.4) 100%);
  pointer-events: none;
}

.legend-card .text-frame {
  padding: 1rem 1rem 1.25rem;
  position: relative;
  z-index: 2;
}

.legend-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, var(--card-glow), transparent 70%);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
  z-index: 1;
}

.legend-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.4), 0 0 24px var(--card-glow);
}

.legend-card:hover::after,
.legend-card.active::after {
  opacity: 0.8;
}

.legend-card.active {
  border-color: var(--card-color);
}

.legend-card .symbol {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--card-color);
  margin-bottom: 0.4rem;
  line-height: 1;
}

.legend-card .label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.legend-card .desc {
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--text-soft);
}

.legend-card[data-element="fire"] { --card-color: var(--fire-base); --card-glow: var(--fire-glow); }
.legend-card[data-element="water"] { --card-color: var(--water-base); --card-glow: var(--water-glow); }
.legend-card[data-element="air"] { --card-color: var(--air-base); --card-glow: var(--air-glow); }
.legend-card[data-element="earth"] { --card-color: var(--earth-base); --card-glow: var(--earth-glow); }
.legend-card[data-element="source"] { --card-color: var(--source-base); --card-glow: var(--source-glow); }

/* ============================================================
   BONDING / MOLECULES — Phase 7
   ============================================================ */
.bonding-section {
  position: relative;
  padding: 0 0 3rem;
  max-width: 1400px;
  margin: 0 auto;
}

.bonding-hero {
  position: relative;
  height: 300px;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
}
.bonding-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('molecules/bond-hero.webp?v=20260517uu');
  background-size: cover;
  background-position: center;
  filter: brightness(0.9) saturate(1.1);
}
.bonding-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(7, 7, 15, 0.45) 0%,
    rgba(7, 7, 15, 0.55) 55%,
    var(--bg-deep) 100%
  );
}
.bonding-hero-overlay {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2rem;
  max-width: 800px;
}
.bonding-hero-overlay .bh-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.4rem;
}
.bonding-hero-overlay .bh-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.7rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1.2;
  margin-bottom: 0.6rem;
}
.bonding-hero-overlay .bh-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  max-width: 520px;
  line-height: 1.5;
}

.bonding-bar {
  padding: 1.5rem 2rem 1rem;
}
.bonding-bar h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  font-style: italic;
  color: var(--text-bright);
  line-height: 1;
  margin-bottom: 0.3rem;
}
.bonding-bar .sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.mol-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  padding: 1rem 2rem 0;
  max-width: 1300px;
  margin: 0 auto;
}

.mol-card {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
  --mol-color: var(--accent-gold);
  --mol-glow: rgba(201, 169, 97, 0.25);
}
.mol-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--mol-color);
  z-index: 3;
}
.mol-card:hover {
  transform: translateY(-3px);
  border-color: var(--mol-color);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.45), 0 0 28px var(--mol-glow);
}

.mol-card .mol-image {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
  background: #000;
}
.mol-card .mol-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease, filter 0.4s ease;
  filter: brightness(0.92) saturate(1.05);
}
.mol-card:hover .mol-image img {
  transform: scale(1.04);
  filter: brightness(1.05) saturate(1.15);
}
.mol-card .mol-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(7, 7, 15, 0.6) 100%);
  pointer-events: none;
}

.mol-card .mol-formula-badge {
  position: absolute;
  top: 0.7rem;
  right: 0.7rem;
  z-index: 2;
  padding: 0.3rem 0.7rem;
  background: rgba(7, 7, 15, 0.7);
  border: 1px solid var(--mol-color);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-bright);
  letter-spacing: 0.04em;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.mol-card .mol-body {
  padding: 1rem 1.1rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  flex: 1;
}

.mol-card .mol-name {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1.15;
}

.mol-card .mol-bond-label {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  align-self: flex-start;
  padding: 0.18rem 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mol-color);
  border: 1px solid var(--mol-color);
  border-radius: 999px;
}

.mol-card .mol-bond-glyph {
  display: inline-block;
  font-size: 0.95rem;
  line-height: 1;
  letter-spacing: 0;
  text-transform: none;
  color: var(--mol-color);
  opacity: 0.95;
  filter: drop-shadow(0 0 4px color-mix(in oklab, var(--mol-color) 50%, transparent));
}

.mol-card .mol-atoms {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}
.mol-card .mol-atom {
  display: inline-flex;
  align-items: baseline;
  gap: 0.3rem;
  padding: 0.3rem 0.55rem;
  background: var(--bg-deep);
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--atom-color, var(--accent-gold));
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-soft);
  cursor: pointer;
  transition: all 0.2s;
}
.mol-card .mol-atom:hover {
  border-color: var(--atom-color, var(--accent-gold));
  background: rgba(201, 169, 97, 0.06);
  color: var(--text-bright);
}
.mol-card .mol-atom .ma-sym {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--text-bright);
}
.mol-card .mol-atom .ma-z {
  font-size: 0.55rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
}

.mol-card .mol-story {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--text-soft);
  border-left: 2px solid var(--mol-color);
  padding: 0.35rem 0 0.35rem 0.75rem;
}

@media (max-width: 768px) {
  .bonding-hero { height: 220px; }
  .bonding-hero-overlay { padding: 1.2rem; }
  .bonding-hero-overlay .bh-title { font-size: 1.3rem; }
  .bonding-hero-overlay .bh-sub { font-size: 0.62rem; }
  .bonding-bar { padding: 1rem; }
  .mol-grid { padding: 1rem; gap: 1rem; grid-template-columns: 1fr; }
  .mol-card .mol-name { font-size: 1.1rem; }
  .mol-card .mol-story { font-size: 0.85rem; }
}

/* ============================================================
   DISCOVERY TIMELINE — Phase 8
   ============================================================ */
.timeline-section {
  position: relative;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 0 1rem;
}

.timeline-hero {
  position: relative;
  height: 360px;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
}
.timeline-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('timeline/disc-hero.webp?v=20260517uu');
  background-size: cover;
  background-position: center;
  filter: brightness(0.85) saturate(1.05);
}
.timeline-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(7, 7, 15, 0.4) 0%,
    rgba(7, 7, 15, 0.55) 60%,
    var(--bg-deep) 100%
  );
}
.timeline-hero-overlay {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  text-align: center;
}
.timeline-hero-overlay .th-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.4rem;
}
.timeline-hero-overlay .th-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 2rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1.1;
  margin-bottom: 0.6rem;
  max-width: 720px;
}
.timeline-hero-overlay .th-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  max-width: 520px;
  line-height: 1.5;
}

.timeline-rail {
  display: flex;
  flex-direction: column;
}

.era-row {
  position: relative;
  min-height: 360px;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
}
.era-row::before {
  content: '';
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.65) saturate(1.05);
  z-index: 0;
}
.era-row::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(7, 7, 15, 0.55) 0%,
    rgba(7, 7, 15, 0.78) 100%
  );
  z-index: 1;
}
.era-row > * { position: relative; z-index: 2; }

.era-row[data-era="antiquity"]::before { background-image: url('timeline/era-antiquity.webp?v=20260517uu'); }
.era-row[data-era="alchemy"]::before   { background-image: url('timeline/era-alchemy.webp?v=20260517uu'); }
.era-row[data-era="classical"]::before { background-image: url('timeline/era-classical.webp?v=20260517uu'); }
.era-row[data-era="modern"]::before    { background-image: url('timeline/era-modern.webp?v=20260517uu'); }
.era-row[data-era="quantum"]::before   { background-image: url('timeline/era-quantum.webp?v=20260517uu'); }

.era-meta {
  padding: 1.8rem 2rem 1rem;
  max-width: 760px;
}
.era-meta .em-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.3rem;
}
.era-meta .em-years {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.era-meta .em-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1.15;
  margin-bottom: 0.7rem;
}
.era-meta .em-desc {
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--text-soft);
}

.era-pins-wrap {
  padding: 0.5rem 0 1.5rem;
  position: relative;
}
.era-pins {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.6rem;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 0.8rem 2rem 1rem;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-gold) transparent;
}
.era-pins::-webkit-scrollbar { height: 6px; }
.era-pins::-webkit-scrollbar-track { background: transparent; }
.era-pins::-webkit-scrollbar-thumb { background: var(--line-mid); border-radius: 3px; }
.era-pins::-webkit-scrollbar-thumb:hover { background: var(--accent-gold); }

.pin {
  flex: 0 0 auto;
  width: 92px;
  background: rgba(7, 7, 15, 0.72);
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--pin-color, var(--accent-gold));
  border-radius: 6px;
  padding: 0.6rem 0.4rem 0.55rem;
  cursor: pointer;
  scroll-snap-align: start;
  transition: all 0.22s;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-family: var(--font-mono);
  color: inherit;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.pin:hover {
  background: rgba(7, 7, 15, 0.92);
  border-color: var(--pin-color, var(--accent-gold));
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.5), 0 0 14px var(--pin-glow, rgba(201, 169, 97, 0.3));
}
.pin .pin-year {
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}
.pin .pin-sym {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: 1.4rem;
  color: var(--text-bright);
  line-height: 1;
}
.pin .pin-z {
  font-size: 0.52rem;
  letter-spacing: 0.15em;
  color: var(--text-dim);
}
.pin .pin-by {
  font-size: 0.52rem;
  letter-spacing: 0.04em;
  color: var(--text-soft);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 0.2rem;
  font-family: var(--font-mono);
  font-style: normal;
}

.era-pins-tip {
  display: none;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 0 2rem;
  margin-bottom: 0.4rem;
}
.era-row:first-of-type .era-pins-tip { display: block; }

@media (max-width: 768px) {
  .timeline-hero { height: 260px; }
  .timeline-hero-overlay { padding: 1.3rem; }
  .timeline-hero-overlay .th-title { font-size: 1.4rem; }
  .timeline-hero-overlay .th-sub { font-size: 0.6rem; letter-spacing: 0.15em; }
  .era-row { min-height: 320px; }
  .era-meta { padding: 1.2rem 1rem 0.6rem; }
  .era-meta .em-title { font-size: 1.2rem; }
  .era-meta .em-desc { font-size: 0.85rem; }
  .era-pins { padding: 0.6rem 1rem 0.8rem; gap: 0.5rem; }
  .pin { width: 80px; padding: 0.5rem 0.35rem; }
  .pin .pin-sym { font-size: 1.2rem; }
  .era-pins-tip { padding: 0 1rem; font-size: 0.5rem; }
}

/* ============================================================
   STABILITY ISLAND — Phase 10
   ============================================================ */
.stability-section {
  position: relative;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 0 2rem;
}

.stability-hero {
  position: relative;
  height: 320px;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
}
.stability-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 25% 30%, rgba(199, 125, 255, 0.22) 0%, transparent 50%),
    radial-gradient(circle at 75% 70%, rgba(201, 169, 97, 0.18) 0%, transparent 55%),
    radial-gradient(circle at 50% 50%, rgba(74, 158, 255, 0.1) 0%, transparent 60%),
    var(--bg-deep);
}
.stability-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 50% 50%, transparent 0%, rgba(7, 7, 15, 0.4) 70%, var(--bg-deep) 100%);
}
.stability-hero-overlay {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  text-align: center;
}
.stability-hero-overlay .bh-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: #c77dff;
  margin-bottom: 0.4rem;
}
.stability-hero-overlay .bh-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 2rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1.1;
  margin-bottom: 0.6rem;
  max-width: 720px;
}
.stability-hero-overlay .bh-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  max-width: 580px;
  line-height: 1.5;
}

.stability-bar {
  padding: 1.5rem 2rem 1rem;
  max-width: 1300px;
  margin: 0 auto;
}
.stability-bar h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  font-style: italic;
  color: var(--text-bright);
  line-height: 1;
  margin-bottom: 0.3rem;
}
.stability-bar .sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.stability-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  padding: 1rem 2rem;
  max-width: 1300px;
  margin: 0 auto;
}

.stab-card {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  padding: 1rem 1rem 0.9rem;
  position: relative;
  transition: all 0.25s;
  --stab-color: #8b8578;
  --stab-glow: rgba(139, 133, 120, 0.2);
}
.stab-card[data-status="attempted"] {
  --stab-color: #c77dff;
  --stab-glow: rgba(199, 125, 255, 0.25);
}
.stab-card[data-status="theoretical"] {
  --stab-color: #5a7080;
  --stab-glow: rgba(90, 112, 128, 0.2);
}
.stab-card[data-magic="true"] {
  --stab-color: #c9a961;
  --stab-glow: rgba(201, 169, 97, 0.35);
}
.stab-card[data-magic="doubly"] {
  --stab-color: #ffd166;
  --stab-glow: rgba(255, 209, 102, 0.4);
}
.stab-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--stab-color);
}
.stab-card:hover {
  border-color: var(--stab-color);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.4), 0 0 22px var(--stab-glow);
}

.stab-card .stab-status {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--stab-color);
  margin-bottom: 0.5rem;
}
.stab-card .stab-sym-row {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.3rem;
}
.stab-card .stab-sym {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 2.2rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1;
}
.stab-card .stab-z {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
}
.stab-card .stab-name {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1rem;
  color: var(--text-soft);
  margin-bottom: 0.7rem;
}
.stab-card .stab-stats {
  display: grid;
  gap: 0.25rem;
  margin-bottom: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-soft);
}
.stab-card .stab-stats .ss-label {
  color: var(--text-dim);
  letter-spacing: 0.1em;
  font-size: 0.55rem;
  text-transform: uppercase;
  margin-right: 0.3rem;
}
.stab-card .stab-note {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.78rem;
  line-height: 1.45;
  color: var(--text-soft);
  border-left: 2px solid var(--stab-color);
  padding: 0.3rem 0 0.3rem 0.6rem;
  margin-bottom: 0.5rem;
}
.stab-card .stab-labs {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.stab-card .stab-magic-badge {
  position: absolute;
  top: 0.7rem;
  right: 0.7rem;
  padding: 0.15rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--bg-deep);
  background: var(--stab-color);
  border-radius: 999px;
  font-weight: 600;
}

.stability-pullquote {
  margin: 2rem auto 1rem;
  max-width: 720px;
  padding: 0 2rem;
  text-align: center;
}
.stability-pullquote blockquote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.4rem;
  line-height: 1.35;
  color: var(--text-bright);
  margin: 0 0 0.6rem;
  padding: 0;
}
.stability-pullquote blockquote::before,
.stability-pullquote blockquote::after {
  color: #c9a961;
  font-style: normal;
  margin: 0 0.15em;
}
.stability-pullquote blockquote::before { content: '"'; }
.stability-pullquote blockquote::after  { content: '"'; }
.stability-pullquote cite {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.62rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.stability-labs {
  max-width: 1300px;
  margin: 1.5rem auto 0;
  padding: 1.5rem 2rem 0;
  border-top: 1px solid var(--line-soft);
}
.stability-labs h3 {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 1rem;
  text-align: center;
}
.stability-labs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}
.lab-card {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--accent-gold);
  border-radius: 6px;
  padding: 0.9rem 1rem;
}
.lab-card .lab-name {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1rem;
  color: var(--text-bright);
  margin-bottom: 0.15rem;
}
.lab-card .lab-location {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.lab-card .lab-desc {
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--text-soft);
}

@media (max-width: 768px) {
  .stability-hero { height: 240px; }
  .stability-hero-overlay { padding: 1.3rem; }
  .stability-hero-overlay .bh-title { font-size: 1.4rem; }
  .stability-hero-overlay .bh-sub { font-size: 0.6rem; letter-spacing: 0.15em; }
  .stability-bar { padding: 1rem; }
  .stability-grid { padding: 1rem; gap: 0.8rem; grid-template-columns: 1fr; }
  .stab-card .stab-sym { font-size: 1.8rem; }
  .stab-card .stab-note { font-size: 0.75rem; }
  .stability-pullquote blockquote { font-size: 1.15rem; }
  .stability-labs { padding: 1.2rem 1rem 0; }
  .stability-labs-grid { gap: 0.8rem; }
}

/* ============================================================
   QUARK LAYER — Phase 11
   Standard Model: fermions (quarks/leptons), bosons, forces
   ============================================================ */
.quark-section {
  position: relative;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 0 2rem;
}

.quark-hero {
  position: relative;
  height: 320px;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
}
.quark-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(255, 94, 58, 0.18) 0%, transparent 45%),
    radial-gradient(circle at 80% 30%, rgba(74, 158, 255, 0.18) 0%, transparent 45%),
    radial-gradient(circle at 50% 80%, rgba(201, 169, 97, 0.16) 0%, transparent 50%),
    var(--bg-deep);
}
.quark-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, transparent 0%, rgba(7, 7, 15, 0.5) 75%, var(--bg-deep) 100%);
}
.quark-hero-overlay {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  text-align: center;
}
.quark-hero-overlay .bh-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.4rem;
}
.quark-hero-overlay .bh-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 2rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1.1;
  margin-bottom: 0.6rem;
  max-width: 720px;
}
.quark-hero-overlay .bh-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  max-width: 580px;
  line-height: 1.5;
}

.quark-block {
  max-width: 1300px;
  margin: 2rem auto 0;
  padding: 0 2rem;
}
.quark-block-header {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  margin-bottom: 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--line-soft);
}
.quark-block-header h3 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--text-bright);
  margin: 0;
}
.quark-block-header .qbh-tag {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.fermion-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.7rem;
  margin-bottom: 1.5rem;
}
.fermion-row-label {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.5rem 0 0.3rem;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent-gold);
}
.fermion-row-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--line-soft);
}

.particle-card {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--p-color, var(--accent-gold));
  border-radius: 6px;
  padding: 0.8rem 0.9rem;
  position: relative;
  transition: all 0.22s;
  --p-color: var(--accent-gold);
  --p-glow: rgba(201, 169, 97, 0.22);
}
.particle-card:hover {
  border-color: var(--p-color);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.4), 0 0 18px var(--p-glow);
}

.particle-card .pc-gen {
  position: absolute;
  top: 0.6rem;
  right: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.5rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 0.1rem 0.4rem;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
}
.particle-card .pc-sym-row {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.2rem;
}
.particle-card .pc-sym {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1;
}
.particle-card .pc-charge {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--p-color);
  letter-spacing: 0.08em;
}
.particle-card .pc-name {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--text-soft);
  margin-bottom: 0.5rem;
}
.particle-card .pc-stats {
  display: grid;
  gap: 0.18rem;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-soft);
  margin-bottom: 0.5rem;
}
.particle-card .pc-stats .ps-label {
  color: var(--text-dim);
  letter-spacing: 0.1em;
  font-size: 0.52rem;
  text-transform: uppercase;
  margin-right: 0.3rem;
}
.particle-card .pc-desc {
  font-size: 0.75rem;
  line-height: 1.45;
  color: var(--text-soft);
  font-family: var(--font-display);
  font-style: italic;
  border-left: 2px solid var(--p-color);
  padding: 0.2rem 0 0.2rem 0.55rem;
}

/* Color identity per particle family */
.particle-card.q-up,    .particle-card.q-charm,    .particle-card.q-top    { --p-color: #ff5e3a; --p-glow: rgba(255, 94, 58, 0.25); }
.particle-card.q-down,  .particle-card.q-strange,  .particle-card.q-bottom { --p-color: #d4632a; --p-glow: rgba(212, 99, 42, 0.25); }
.particle-card.lepton.charged    { --p-color: #4a9eff; --p-glow: rgba(74, 158, 255, 0.25); }
.particle-card.lepton.neutrino   { --p-color: #7cc4ff; --p-glow: rgba(124, 196, 255, 0.22); }

/* Boson grid */
.boson-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.7rem;
}
.particle-card.boson.strong       { --p-color: #ff5e3a; --p-glow: rgba(255, 94, 58, 0.28); }
.particle-card.boson.em           { --p-color: #ffd166; --p-glow: rgba(255, 209, 102, 0.28); }
.particle-card.boson.weak         { --p-color: #7cb342; --p-glow: rgba(124, 179, 66, 0.25); }
.particle-card.boson.higgs        { --p-color: #c77dff; --p-glow: rgba(199, 125, 255, 0.3); }

/* Forces */
.force-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}
.force-card {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  padding: 1rem 1.1rem;
  position: relative;
  transition: all 0.22s;
  --f-color: var(--accent-gold);
}
.force-card.strong  { --f-color: #ff5e3a; }
.force-card.em      { --f-color: #ffd166; }
.force-card.weak    { --f-color: #7cb342; }
.force-card.gravity { --f-color: #c77dff; }
.force-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; bottom: 0;
  width: 3px;
  background: var(--f-color);
  border-radius: 8px 0 0 8px;
}
.force-card:hover {
  border-color: var(--f-color);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.4);
}
.force-card .fc-name {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.2rem;
  color: var(--text-bright);
  margin-bottom: 0.2rem;
}
.force-card .fc-carrier {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--f-color);
  margin-bottom: 0.6rem;
}
.force-card .fc-strength-bar {
  height: 4px;
  background: var(--bg-deep);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 0.3rem;
}
.force-card .fc-strength-fill {
  height: 100%;
  background: var(--f-color);
  border-radius: 2px;
}
.force-card .fc-strength-num {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.force-card .fc-desc {
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--text-soft);
}

.quark-emergence {
  max-width: 760px;
  margin: 2.5rem auto 0;
  padding: 1.5rem 2rem 0;
  text-align: center;
  border-top: 1px solid var(--line-soft);
}
.quark-emergence h3 {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 1rem;
}
.quark-emergence-chain {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.qe-node {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  padding: 0.6rem 0.8rem;
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  min-width: 100px;
}
.qe-node .qn-sym {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.2rem;
  color: var(--text-bright);
  line-height: 1;
}
.qe-node .qn-lab {
  font-family: var(--font-mono);
  font-size: 0.5rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.qe-arrow {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--accent-gold);
}
.quark-emergence-quote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.05rem;
  line-height: 1.45;
  color: var(--text-soft);
  max-width: 580px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .quark-hero { height: 240px; }
  .quark-hero-overlay { padding: 1.3rem; }
  .quark-hero-overlay .bh-title { font-size: 1.4rem; }
  .quark-hero-overlay .bh-sub { font-size: 0.6rem; letter-spacing: 0.15em; }
  .quark-block { padding: 0 1rem; margin-top: 1.5rem; }
  .fermion-grid { grid-template-columns: 1fr; gap: 0.5rem; }
  .particle-card .pc-sym { font-size: 1.4rem; }
  .particle-card .pc-name { font-size: 0.88rem; }
  .boson-grid, .force-grid { grid-template-columns: 1fr; gap: 0.7rem; }
  .quark-emergence { padding: 1.2rem 1rem 0; }
  .qe-node { min-width: 80px; padding: 0.5rem 0.5rem; }
  .qe-node .qn-sym { font-size: 1rem; }
}

/* ============================================================
   ISOTOPE CHART — Phase 12 · Valley of Stability
   ============================================================ */
.isotope-section {
  position: relative;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 0 2rem;
}

.isotope-hero {
  position: relative;
  height: 320px;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
}
.isotope-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 30% at 50% 60%, rgba(201, 169, 97, 0.22) 0%, transparent 50%),
    radial-gradient(circle at 25% 25%, rgba(255, 94, 58, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 80% 75%, rgba(199, 125, 255, 0.14) 0%, transparent 45%),
    var(--bg-deep);
}
.isotope-hero[data-img="true"]::before {
  background-image: url('timeline/disc-isotope-hero.webp?v=20260517uu');
  background-size: cover;
  background-position: center;
  filter: brightness(0.85) saturate(1.05);
}
.isotope-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 7, 15, 0.4) 0%, rgba(7, 7, 15, 0.55) 60%, var(--bg-deep) 100%);
}
.isotope-hero-overlay {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  text-align: center;
}
.isotope-hero-overlay .bh-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.4rem;
}
.isotope-hero-overlay .bh-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 2rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1.1;
  margin-bottom: 0.6rem;
  max-width: 720px;
}
.isotope-hero-overlay .bh-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  max-width: 580px;
  line-height: 1.5;
}

.isotope-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 1.2rem 2rem 0.6rem;
  max-width: 1300px;
  margin: 0 auto;
}
.isotope-controls .ic-bar-left h2 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1;
  margin-bottom: 0.3rem;
}
.isotope-controls .ic-bar-left .sub {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.isotope-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.5rem;
}
.iso-legend-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.55rem 0.3rem 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--chip-color);
  border-radius: 4px;
  transition: all 0.2s;
}
.iso-legend-chip:hover {
  border-color: var(--chip-color);
  color: var(--text-bright);
  background: rgba(201, 169, 97, 0.04);
}
.iso-legend-chip::before {
  content: '';
  width: 28px;
  height: 28px;
  background-image: var(--chip-icon);
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  flex-shrink: 0;
}
.iso-legend-chip[data-mode="stable"] { --chip-color: #c9a961; --chip-icon: url('timeline/decay-modes/decay-stable.webp?v=20260517uu'); }
.iso-legend-chip[data-mode="a"]      { --chip-color: #ff5e3a; --chip-icon: url('timeline/decay-modes/decay-a.webp?v=20260517uu'); }
.iso-legend-chip[data-mode="bm"]     { --chip-color: #4a9eff; --chip-icon: url('timeline/decay-modes/decay-bm.webp?v=20260517uu'); }
.iso-legend-chip[data-mode="bp"]     { --chip-color: #7cc4ff; --chip-icon: url('timeline/decay-modes/decay-bp.webp?v=20260517uu'); }
.iso-legend-chip[data-mode="g"]      { --chip-color: #ffd166; --chip-icon: url('timeline/decay-modes/decay-g.webp?v=20260517uu'); }
.iso-legend-chip[data-mode="ec"]     { --chip-color: #c77dff; --chip-icon: url('timeline/decay-modes/decay-ec.webp?v=20260517uu'); }
.iso-legend-chip[data-mode="n"]      { --chip-color: #7cb342; --chip-icon: url('timeline/decay-modes/decay-n.webp?v=20260517uu'); }
.iso-legend-chip[data-mode="sf"]     { --chip-color: #a04a8c; --chip-icon: url('timeline/decay-modes/decay-sf.webp?v=20260517uu'); }

.isotope-chart-wrap {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0.5rem 2rem 0;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-gold) transparent;
}
.isotope-chart-wrap::-webkit-scrollbar { height: 6px; }
.isotope-chart-wrap::-webkit-scrollbar-thumb { background: var(--line-mid); border-radius: 3px; }
.isotope-chart-wrap::-webkit-scrollbar-thumb:hover { background: var(--accent-gold); }

.isotope-chart-svg {
  display: block;
  width: 100%;
  min-width: 900px;
  height: auto;
  font-family: var(--font-mono);
  font-size: 9px;
}
.isotope-chart-svg .iso-cell {
  cursor: pointer;
  transition: transform 0.15s, filter 0.15s;
  transform-origin: center;
  transform-box: fill-box;
}
.isotope-chart-svg .iso-cell:hover {
  filter: brightness(1.6) drop-shadow(0 0 4px currentColor);
  transform: scale(1.4);
}
.isotope-chart-svg .iso-axis {
  fill: var(--text-dim);
  font-size: 8px;
  letter-spacing: 0.05em;
}
.isotope-chart-svg .iso-axis-title {
  fill: var(--text-muted);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 11px;
}
.isotope-chart-svg .iso-grid-line {
  stroke: var(--line-soft);
  stroke-width: 0.5;
  opacity: 0.5;
}
.isotope-chart-svg .iso-magic-line {
  stroke: var(--accent-gold);
  stroke-width: 0.8;
  stroke-dasharray: 3 3;
  opacity: 0.5;
}
.isotope-chart-svg .iso-magic-label {
  fill: var(--accent-gold);
  font-size: 8px;
  letter-spacing: 0.1em;
  font-style: italic;
}

.isotope-detail {
  max-width: 760px;
  margin: 1rem auto 0;
  padding: 0 2rem;
  min-height: 110px;
}
.isotope-detail-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1.2rem;
  align-items: center;
  padding: 1rem 1.2rem;
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--detail-color, var(--accent-gold));
  border-radius: 6px;
}
.isotope-detail-card.empty {
  display: flex;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  border-style: dashed;
  border-left-style: dashed;
}
.iso-detail-sym {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 70px;
}
.iso-detail-sym .ids-mass {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}
.iso-detail-sym .ids-glyph {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 2rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1;
}
.iso-detail-sym .ids-z {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  color: var(--text-dim);
}
.iso-detail-info .idi-name {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.05rem;
  color: var(--text-bright);
  margin-bottom: 0.2rem;
}
.iso-detail-info .idi-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-soft);
  margin-bottom: 0.3rem;
}
.iso-detail-info .idi-stats .is-label {
  color: var(--text-dim);
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-right: 0.25rem;
}
.iso-detail-info .idi-note {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.85rem;
  line-height: 1.4;
  color: var(--text-soft);
}
.iso-detail-mode {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--detail-color, var(--accent-gold));
  padding: 0.3rem 0.7rem 0.3rem 0.45rem;
  border: 1px solid var(--detail-color, var(--accent-gold));
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.iso-detail-mode::before {
  content: '';
  width: 22px;
  height: 22px;
  background-image: var(--mode-icon);
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .isotope-hero { height: 240px; }
  .isotope-hero-overlay { padding: 1.3rem; }
  .isotope-hero-overlay .bh-title { font-size: 1.4rem; }
  .isotope-controls { padding: 1rem 1rem 0.4rem; flex-direction: column; align-items: flex-start; gap: 0.7rem; }
  .isotope-chart-wrap { padding: 0.3rem 1rem 0; }
  .isotope-chart-svg { min-width: 700px; }
  .isotope-detail { padding: 0 1rem; }
  .isotope-detail-card { grid-template-columns: auto 1fr; gap: 0.8rem; padding: 0.8rem 1rem; }
  .iso-detail-mode { grid-column: 1 / -1; justify-self: start; }
  .iso-detail-info .idi-note { font-size: 0.8rem; }
}

/* ============================================================
   DISCOVERY WORLD MAP — Phase 13
   ============================================================ */
.worldmap-section {
  position: relative;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 0 2rem;
}

.worldmap-hero {
  position: relative;
  height: 320px;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
}
.worldmap-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 40% at 50% 50%, rgba(201, 169, 97, 0.18) 0%, transparent 60%),
    radial-gradient(circle at 25% 30%, rgba(74, 158, 255, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 75% 70%, rgba(255, 94, 58, 0.10) 0%, transparent 40%),
    var(--bg-deep);
}
.worldmap-hero[data-img="true"]::before {
  background-image: url('timeline/disc-worldmap-hero.webp?v=20260517uu');
  background-size: cover;
  background-position: center;
  filter: brightness(0.85) saturate(1.05);
}
.worldmap-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 7, 15, 0.4) 0%, rgba(7, 7, 15, 0.55) 60%, var(--bg-deep) 100%);
}
.worldmap-hero-overlay {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  text-align: center;
}
.worldmap-hero-overlay .bh-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.4rem;
}
.worldmap-hero-overlay .bh-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 2rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1.1;
  margin-bottom: 0.6rem;
}
.worldmap-hero-overlay .bh-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.worldmap-bar {
  padding: 1.5rem 2rem 0.5rem;
  max-width: 1300px;
  margin: 0 auto;
}
.worldmap-bar h2 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1;
  margin-bottom: 0.3rem;
}
.worldmap-bar .sub {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.worldmap-svg-wrap {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0.5rem 2rem 0;
}
.worldmap-svg {
  display: block;
  width: 100%;
  height: auto;
  background: rgba(7, 7, 15, 0.4);
  border-radius: 6px;
  border: 1px solid var(--line-soft);
}
.worldmap-svg .wm-grid {
  stroke: var(--line-soft);
  stroke-width: 0.5;
  opacity: 0.35;
}
.worldmap-svg .wm-equator {
  stroke: var(--accent-gold);
  stroke-width: 0.7;
  stroke-dasharray: 4 4;
  opacity: 0.4;
}
.worldmap-svg .wm-pin {
  cursor: pointer;
  transition: transform 0.2s, filter 0.2s;
  transform-origin: center;
  transform-box: fill-box;
}
.worldmap-svg .wm-pin:hover {
  filter: brightness(1.6) drop-shadow(0 0 6px currentColor);
  transform: scale(1.5);
}
.worldmap-svg .wm-pin.active {
  filter: brightness(1.8) drop-shadow(0 0 10px currentColor);
  transform: scale(1.4);
}
.worldmap-svg .wm-city-label {
  fill: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.05em;
  pointer-events: none;
}

.worldmap-detail {
  max-width: 1100px;
  margin: 1rem auto 0;
  padding: 0 2rem;
  min-height: 80px;
}
.wm-detail-empty {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 1.2rem;
  text-align: center;
  border: 1px dashed var(--line-soft);
  border-radius: 6px;
}
.wm-detail-card {
  padding: 1.1rem 1.3rem;
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--accent-gold);
  border-radius: 6px;
}
.wm-detail-city {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  margin-bottom: 0.5rem;
  flex-wrap: wrap;
}
.wm-detail-city h3 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--text-bright);
  margin: 0;
}
.wm-detail-city .wmd-country {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.wm-detail-city .wmd-count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.15em;
  color: var(--accent-gold);
}
.wm-detail-elements {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.wmd-elem-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 0.3rem;
  padding: 0.3rem 0.55rem;
  background: var(--bg-deep);
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--chip-color, var(--accent-gold));
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-soft);
  cursor: pointer;
  transition: all 0.2s;
}
.wmd-elem-chip:hover {
  border-color: var(--chip-color, var(--accent-gold));
  background: rgba(201, 169, 97, 0.06);
}
.wmd-elem-chip .wec-sym {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--text-bright);
}
.wmd-elem-chip .wec-year {
  color: var(--text-dim);
  font-size: 0.55rem;
}

@media (max-width: 768px) {
  .worldmap-hero { height: 240px; }
  .worldmap-hero-overlay { padding: 1.3rem; }
  .worldmap-hero-overlay .bh-title { font-size: 1.4rem; }
  .worldmap-bar { padding: 1rem; }
  .worldmap-svg-wrap { padding: 0.3rem 1rem 0; }
  .worldmap-detail { padding: 0 1rem; }
  .wm-detail-city h3 { font-size: 1.15rem; }
}

/* ============================================================
   CONTROLS BAR
   ============================================================ */
.controls {
  padding: 1.5rem 2rem;
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  align-items: center;
}

.control-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.temp-slider-wrap {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-width: 300px;
}

.temp-slider {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: linear-gradient(to right, #4a9eff 0%, #7cb342 30%, #ffd166 60%, #ff5e3a 100%);
  border-radius: 2px;
  outline: none;
}

.temp-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  background: var(--accent-gold);
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid var(--bg-deep);
  box-shadow: 0 0 8px var(--accent-gold);
}

.temp-slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  background: var(--accent-gold);
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid var(--bg-deep);
  box-shadow: 0 0 8px var(--accent-gold);
}

.temp-display {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-bright);
  min-width: 90px;
  text-align: right;
}

.view-toggles {
  display: flex;
  gap: 0.5rem;
}

.view-btn {
  background: transparent;
  border: 1px solid var(--line-mid);
  color: var(--text-muted);
  padding: 0.4rem 0.9rem;
  border-radius: 4px;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  transition: all 0.2s;
}

.view-btn:hover {
  color: var(--accent-gold);
  border-color: var(--accent-gold);
}

.view-btn.active {
  background: var(--accent-gold);
  color: var(--bg-deep);
  border-color: var(--accent-gold);
}

/* ============================================================
   PERIODIC TABLE
   ============================================================ */
.table-container {
  padding: 2rem 1rem 4rem;
  max-width: 1400px;
  margin: 0 auto;
  overflow-x: auto;
}

.periodic-table {
  display: grid;
  grid-template-columns: repeat(18, minmax(54px, 1fr));
  gap: 4px;
  min-width: 1100px;
  margin: 0 auto;
}

.lanthanide-row,
.actinide-row {
  display: grid;
  grid-template-columns: repeat(18, minmax(54px, 1fr));
  gap: 4px;
  min-width: 1100px;
  margin: 0.5rem auto 0;
}

.spacer-label {
  grid-column: span 2;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.element {
  aspect-ratio: 1 / 1.1;
  background: var(--bg-card);
  border: 1px solid var(--el-color);
  border-radius: 4px;
  padding: 4px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
  transition: all 0.2s ease;
  text-align: left;
  font-family: inherit;
  color: var(--text-bright);
}

.element::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, var(--el-glow), transparent 70%);
  opacity: 0.6;
  pointer-events: none;
  transition: opacity 0.2s;
}

.element:hover::before {
  opacity: 1;
}

.element:hover {
  transform: translateY(-2px);
  border-color: var(--accent-gold);
  z-index: 10;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5), 0 0 16px var(--el-glow);
}

.element[data-element="fire"] { --el-color: var(--fire-base); --el-glow: var(--fire-glow); }
.element[data-element="water"] { --el-color: var(--water-base); --el-glow: var(--water-glow); }
.element[data-element="air"] { --el-color: var(--air-base); --el-glow: var(--air-glow); }
.element[data-element="earth"] { --el-color: var(--earth-base); --el-glow: var(--earth-glow); }
.element[data-element="source"] { --el-color: var(--source-base); --el-glow: var(--source-glow); }

.element.dimmed {
  opacity: 0.15;
  filter: grayscale(0.7);
}

.element.dimmed:hover {
  opacity: 1;
  filter: none;
}

.element.state-highlight {
  box-shadow: 0 0 12px var(--accent-gold), 0 0 4px var(--accent-gold);
  border-color: var(--accent-gold);
}

.el-number {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-muted);
  position: relative;
  z-index: 1;
}

.el-symbol {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 500;
  line-height: 1;
  color: var(--el-color);
  position: relative;
  z-index: 1;
  text-align: center;
  margin: auto 0;
}

.el-name {
  font-size: 0.55rem;
  color: var(--text-soft);
  text-align: center;
  position: relative;
  z-index: 1;
  letter-spacing: 0.02em;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.el-mass {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  color: var(--text-dim);
  text-align: center;
  position: relative;
  z-index: 1;
}

/* Block marker (s/p/d/f) - tiny corner mark */
.el-block {
  position: absolute;
  bottom: 2px;
  left: 3px;
  font-family: var(--font-mono);
  font-size: 0.5rem;
  color: var(--text-dim);
  opacity: 0.6;
  z-index: 1;
}

/* ============================================================
   MODAL / DETAIL VIEW
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(7, 7, 15, 0.85);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  transition: opacity 0.3s;
}

.modal-overlay.open {
  display: flex;
  opacity: 1;
}

.modal {
  background: linear-gradient(180deg, var(--bg-mid) 0%, var(--bg-deep) 100%);
  border: 1px solid var(--modal-color, var(--line-mid));
  border-radius: 12px;
  max-width: 720px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6), 0 0 40px var(--modal-glow, transparent);
  transform: scale(0.95);
  transition: transform 0.3s;
}

.modal-overlay.open .modal {
  transform: scale(1);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: transparent;
  border: 1px solid var(--line-mid);
  color: var(--text-muted);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  z-index: 2;
}

.modal-close:hover {
  color: var(--accent-gold);
  border-color: var(--accent-gold);
}

.modal-header {
  padding: 2.5rem 2rem 1.5rem;
  border-bottom: 1px solid var(--line-soft);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2rem;
  align-items: center;
}

.modal-symbol-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem;
  border: 1px solid var(--modal-color);
  border-radius: 8px;
  min-width: 120px;
  background: var(--bg-card);
  position: relative;
  overflow: hidden;
}

.modal-symbol-block::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, var(--modal-glow), transparent 70%);
  pointer-events: none;
}

.modal-symbol-block .num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  position: relative;
  z-index: 1;
}

.modal-symbol-block .sym {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 500;
  color: var(--modal-color);
  line-height: 1;
  position: relative;
  z-index: 1;
}

.modal-symbol-block .mass {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dim);
  margin-top: 0.3rem;
  position: relative;
  z-index: 1;
}

.modal-title-block .name {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 400;
  color: var(--text-bright);
  line-height: 1.1;
  margin-bottom: 0.4rem;
}

.modal-title-block .name-alt {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 0.8rem;
}

.modal-title-block .element-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.8rem;
  background: var(--bg-card);
  border: 1px solid var(--modal-color);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--modal-color);
}

.modal-title-block .element-tag .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--modal-color);
  box-shadow: 0 0 8px var(--modal-color);
}

.modal-body {
  padding: 2rem;
}

.modal-section {
  margin-bottom: 2rem;
}

.modal-section:last-child {
  margin-bottom: 0;
}

.modal-section h3 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.8rem;
  font-weight: 500;
}

.modal-section p {
  color: var(--text-soft);
  line-height: 1.7;
  font-size: 0.95rem;
}

.modal-section .shalem-quote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.2rem;
  line-height: 1.5;
  color: var(--text-bright);
  border-left: 2px solid var(--modal-color);
  padding-left: 1.2rem;
}

.data-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
}

.data-cell {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  padding: 0.8rem 1rem;
}

.data-cell .label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.3rem;
}

.data-cell .value {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-bright);
}

.balance-meter {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  padding: 1rem;
}

.balance-meter .label-l,
.balance-meter .label-r {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
}

.balance-meter .label-l { color: var(--fire-base); }
.balance-meter .label-r { color: var(--water-base); }

.balance-bar {
  flex: 1;
  height: 6px;
  background: linear-gradient(to right, var(--fire-deep), var(--bg-soft), var(--water-deep));
  border-radius: 3px;
  position: relative;
}

.balance-marker {
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 14px;
  height: 14px;
  background: var(--accent-gold);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-gold);
  border: 2px solid var(--bg-deep);
}

.origin-line {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.origin-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  background: var(--bg-card);
  border: 1px solid var(--line-mid);
  color: var(--text-soft);
}

.origin-tag.active {
  background: var(--modal-color);
  color: var(--bg-deep);
  border-color: var(--modal-color);
  font-weight: 500;
}

.orbital-display {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 1.2rem;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  padding: 1rem;
}

.orbital-display img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 6px;
  background: var(--bg-deep);
}

.orbital-meta .orbital-block-name {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.3rem;
}

.orbital-meta .orbital-count {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--text-bright);
  margin-bottom: 0.6rem;
}

.orbital-meta p {
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--text-soft);
}

/* Nucleosynthesis Banner */
.nucleosynthesis-banner {
  position: relative;
  margin: 4rem -2rem 2rem;
  border-radius: 8px;
  overflow: hidden;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.nucleosynthesis-banner img {
  width: 100%;
  height: auto;
  display: block;
  filter: brightness(0.9);
}

.nucleosynthesis-banner .banner-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 0.8rem 1rem;
  background: linear-gradient(to top, rgba(7,7,15,0.95) 0%, rgba(7,7,15,0.6) 70%, transparent 100%);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  text-align: center;
}

.nucleosynthesis-banner .caption-zone {
  padding: 0.3rem 0.5rem;
  color: var(--text-soft);
}

.nucleosynthesis-banner .caption-zone.bb { color: #f4f1e8; }
.nucleosynthesis-banner .caption-zone.sf { color: #ffd166; }
.nucleosynthesis-banner .caption-zone.sn { color: #ff5e3a; }
.nucleosynthesis-banner .caption-zone.ns { color: #c77dff; }

/* ============================================================
   LAYERS EXPLAINER
   ============================================================ */
.layers-section {
  padding: 6rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.layers-section h2 {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 400;
  text-align: center;
  color: var(--text-bright);
  margin-bottom: 1rem;
}

.layers-section h2 em {
  font-style: italic;
  color: var(--accent-gold);
}

.layers-section .intro {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 4rem;
  color: var(--text-soft);
  font-size: 1.05rem;
}

.layer {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--line-soft);
}

.layer:last-child { border-bottom: none; }

.layer .num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-style: italic;
  color: var(--accent-gold);
  line-height: 1;
}

.layer h3 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--text-bright);
  margin-bottom: 0.8rem;
}

.layer p {
  color: var(--text-soft);
  line-height: 1.7;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  padding: 3rem 2rem;
  border-top: 1px solid var(--line-soft);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.site-footer a {
  color: var(--accent-gold);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

/* ============================================================
   3D HELIX STAGE
   ============================================================ */
.helix-section {
  position: relative;
  background: var(--bg-deep);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.helix-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 2rem;
  gap: 1rem;
  flex-wrap: wrap;
  max-width: 1400px;
  margin: 0 auto;
}

.helix-bar .left {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.helix-bar h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 500;
  font-style: italic;
  color: var(--text-bright);
  line-height: 1;
}

.helix-bar .sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.helix-bar .controls-inline {
  display: flex;
  gap: 0.8rem;
  align-items: center;
  flex-wrap: wrap;
}

.view-switch {
  display: flex;
  border: 1px solid var(--line-mid);
  border-radius: 999px;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

.view-switch button {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.4rem 0.9rem;
  cursor: pointer;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  transition: all 0.2s;
}

.view-switch button.active {
  background: var(--accent-gold);
  color: var(--bg-deep);
}

.sound-toggle {
  background: transparent;
  border: 1px solid var(--line-mid);
  color: var(--text-muted);
  border-radius: 999px;
  padding: 0.4rem 0.8rem;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.2s;
}

.sound-toggle:hover {
  color: var(--accent-gold);
  border-color: var(--accent-gold);
}

.sound-toggle.on {
  color: var(--accent-gold);
  border-color: var(--accent-gold);
}

.sound-toggle .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-dim);
}

.sound-toggle.on .dot {
  background: var(--accent-gold);
  box-shadow: 0 0 6px var(--accent-gold);
}

.helix-stage-wrap {
  position: relative;
  width: 100%;
  height: 75vh;
  min-height: 560px;
  max-height: 820px;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(199, 125, 255, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 80%, rgba(74, 158, 255, 0.05) 0%, transparent 50%),
    var(--bg-deep);
}

#helix-stage {
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
  touch-action: none;
}

#helix-stage:active { cursor: grabbing; }

.helix-overlay {
  position: absolute;
  bottom: 1.2rem;
  left: 1.2rem;
  right: 1.2rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  pointer-events: none;
  z-index: 2;
}

.helix-overlay .hint {
  display: flex;
  gap: 1.2rem;
}

.helix-tooltip {
  position: absolute;
  pointer-events: none;
  background: rgba(7, 7, 15, 0.95);
  border: 1px solid var(--line-mid);
  border-left: 2px solid var(--accent-gold);
  padding: 0.5rem 0.8rem;
  border-radius: 4px;
  font-size: 0.8rem;
  color: var(--text-bright);
  opacity: 0;
  transform: translate(-50%, -130%);
  transition: opacity 0.15s;
  z-index: 5;
  white-space: nowrap;
}

.helix-tooltip.visible { opacity: 1; }

.helix-tooltip .tip-sym {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--accent-gold);
  margin-right: 0.4rem;
}

.helix-tooltip .tip-name {
  color: var(--text-soft);
}

.helix-tooltip .tip-fam-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  margin-right: 0.45rem;
  vertical-align: middle;
  box-shadow: 0 0 4px currentColor;
}

.helix-tooltip .tip-year {
  display: inline-block;
  margin-left: 0.55rem;
  font-size: 0.72rem;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}
.helix-tooltip .tip-year:empty { display: none; }

/* WebGL fallback */
.helix-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  flex-direction: column;
  gap: 1rem;
  padding: 2rem;
  text-align: center;
  font-family: var(--font-display);
  font-style: italic;
  color: var(--text-muted);
}

/* ============================================================
   ORBITAL CANVAS IN MODAL
   ============================================================ */
.orbital-canvas-wrap {
  width: 100%;
  aspect-ratio: 1 / 1;
  background:
    radial-gradient(circle at center, rgba(199, 125, 255, 0.05) 0%, transparent 70%),
    var(--bg-deep);
  border-radius: 6px;
  overflow: hidden;
  position: relative;
  border: 1px solid var(--line-soft);
}

.orbital-canvas-wrap canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
  touch-action: none;
}

.orbital-canvas-wrap .orbital-label {
  position: absolute;
  bottom: 0.5rem;
  left: 0.5rem;
  right: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  pointer-events: none;
}

.orbital-display {
  grid-template-columns: 200px 1fr;
}

/* ============================================================
   EARTH EXPLORER — 3D Earth Section
   ============================================================ */
.earth-section {
  position: relative;
  background: var(--bg-deep);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  overflow: hidden;
}

.earth-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 2rem;
  gap: 1rem;
  flex-wrap: wrap;
  max-width: 1400px;
  margin: 0 auto;
}

.earth-bar .left { display: flex; flex-direction: column; gap: 0.25rem; }

.earth-bar h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 500;
  font-style: italic;
  color: var(--text-bright);
  line-height: 1;
}

.earth-bar .sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.mode-switch {
  display: flex;
  border: 1px solid var(--line-mid);
  border-radius: 999px;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.65rem;
}

.mode-switch button {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.45rem 0.85rem;
  cursor: pointer;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  transition: all 0.2s;
}

.mode-switch button:hover { color: var(--text-soft); }

.mode-switch button.active {
  background: var(--accent-gold);
  color: var(--bg-deep);
}

.earth-stage-wrap {
  position: relative;
  width: 100%;
  height: 75vh;
  min-height: 520px;
  max-height: 780px;
  background:
    radial-gradient(ellipse at center, rgba(74, 158, 255, 0.04) 0%, transparent 60%),
    var(--bg-deep);
}

#earth-stage {
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
  touch-action: none;
}

#earth-stage:active { cursor: grabbing; }

.earth-loading {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--bg-deep);
  z-index: 3;
  transition: opacity 0.6s;
}

.earth-loading.hidden { opacity: 0; pointer-events: none; }

.earth-loading .spinner {
  font-size: 3rem;
  color: var(--accent-gold);
  animation: spin 2s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.earth-info {
  position: absolute;
  top: 1rem;
  right: 1rem;
  max-width: 280px;
  background: rgba(7, 7, 15, 0.85);
  border: 1px solid var(--line-mid);
  border-left: 2px solid var(--accent-gold);
  border-radius: 4px;
  padding: 1rem 1.2rem;
  backdrop-filter: blur(8px);
  font-family: inherit;
  z-index: 2;
  pointer-events: none;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 0.3s, transform 0.3s;
}

.earth-info.visible {
  opacity: 1;
  transform: translateY(0);
}

.earth-info h4 {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.6rem;
  font-weight: 500;
}

.earth-info .title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.3rem;
  color: var(--text-bright);
  margin-bottom: 0.4rem;
  line-height: 1.1;
}

.earth-info .meta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.7rem;
}

.earth-info p {
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--text-soft);
  margin-bottom: 0.5rem;
}

.earth-info .comp-list {
  display: grid;
  gap: 0.25rem;
  margin-top: 0.5rem;
}

.earth-info .comp-row {
  display: grid;
  grid-template-columns: 28px 1fr 40px;
  gap: 0.5rem;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

.earth-info .comp-row .csym {
  color: var(--accent-gold);
  font-family: var(--font-display);
  font-size: 0.9rem;
}

.earth-info .comp-row .cbar-wrap {
  height: 3px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 2px;
  overflow: hidden;
}

.earth-info .comp-row .cbar {
  height: 100%;
  background: var(--accent-gold);
  border-radius: 2px;
}

.earth-info .comp-row .cpct {
  color: var(--text-bright);
  text-align: right;
}

.earth-element-filter {
  padding: 1.6rem 2rem 1.2rem;
  max-width: 1400px;
  margin: 0 auto;
  border-top: 1px solid var(--line-soft);
}

/* ============================================================
   Country card — political data popup
   ============================================================ */
.country-card {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  max-width: 280px;
  background: rgba(7, 7, 15, 0.92);
  border: 1px solid var(--line-mid);
  border-left: 3px solid var(--accent-gold);
  border-radius: 6px;
  padding: 0;
  backdrop-filter: blur(10px);
  z-index: 4;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 0.25s, transform 0.25s;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6),
              0 0 0 1px rgba(201, 169, 97, 0.15);
}

.country-card.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* When pinned to a country, JS controls left/top — clear bottom-left */
.country-card.pinned {
  bottom: auto;
  left: 0;
  top: 0;
  transition: opacity 0.18s, transform 0.2s;
}

.country-card .cc-head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid var(--line-soft);
}

.country-card .cc-iso {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--accent-gold);
  padding: 0.2rem 0.45rem;
  background: rgba(201, 169, 97, 0.1);
  border: 1px solid rgba(201, 169, 97, 0.3);
  border-radius: 3px;
}

.country-card .cc-name {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--text-bright);
  flex: 1;
}

.country-card .cc-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.4rem;
  line-height: 1;
  padding: 0 0.3rem;
  transition: color 0.2s;
}

.country-card .cc-close:hover { color: var(--text-bright); }

.country-card .cc-body {
  padding: 0.7rem 0.9rem;
  display: grid;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.country-card .cc-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.country-card .cc-row.cc-gov {
  flex-direction: column;
  gap: 0.15rem;
  margin-top: 0.2rem;
}

.country-card .cc-l {
  color: var(--text-muted);
  letter-spacing: 0.1em;
  font-size: 0.68rem;
  text-transform: uppercase;
}

.country-card .cc-v {
  color: var(--text-bright);
  font-size: 0.85rem;
}

.country-card .cc-gov .cc-v {
  font-size: 0.78rem;
  color: var(--text-soft);
  font-style: italic;
}

.country-card .cc-no-data {
  color: var(--text-dim);
  font-style: italic;
  text-align: center;
  padding: 0.4rem;
}

.country-card .cc-prod {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-top: 0.5rem;
  padding-top: 0.55rem;
  border-top: 1px solid var(--line-soft);
}

.country-card .cc-prod-label {
  color: var(--text-soft);
  font-size: 0.72rem;
}

.country-card .cc-prod-val {
  color: var(--accent-gold);
  font-size: 1rem;
  font-weight: 600;
}

@media (max-width: 768px) {
  .country-card { max-width: none; left: 0.5rem; right: 0.5rem; bottom: 0.5rem; }
}

/* ============================================================
   PHONE SECTION — Smartphone supply chain reference
   ============================================================ */
.phone-section {
  background: var(--bg-deep);
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: 2rem;
}

.phone-hero {
  position: relative;
  height: 320px;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
}
.phone-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 55% 50% at 50% 50%, rgba(201, 169, 97, 0.16) 0%, transparent 65%),
    radial-gradient(ellipse 40% 30% at 25% 30%, rgba(74, 158, 255, 0.10) 0%, transparent 60%),
    radial-gradient(ellipse 35% 25% at 78% 65%, rgba(184, 115, 51, 0.10) 0%, transparent 60%),
    var(--bg-deep);
}
.phone-hero[data-img="true"]::before {
  background-image: url('timeline/phone-hero.webp?v=20260517uu');
  background-size: cover;
  background-position: center;
  filter: brightness(0.88) saturate(1.12) contrast(1.06);
}
.phone-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 7, 15, 0.45) 0%, rgba(7, 7, 15, 0.55) 60%, var(--bg-deep) 100%);
}
.phone-hero .phone-hero-overlay {
  position: relative;
  z-index: 3;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  text-align: center;
}
.phone-hero .phone-hero-overlay .bh-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.4rem;
}
.phone-hero .phone-hero-overlay .bh-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.5rem, 3.2vw, 2.4rem);
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1.2;
  max-width: 720px;
}
.phone-hero .phone-hero-overlay .bh-sub {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.05rem;
  color: var(--text-soft);
  margin-top: 0.6rem;
  max-width: 560px;
}
@media (max-width: 720px) {
  .phone-hero { height: 240px; }
  .phone-hero .phone-hero-overlay .bh-sub { font-size: 0.95rem; }
}

.phone-bar {
  padding: 1.5rem 2rem 1rem;
  max-width: 1400px;
  margin: 0 auto;
}

.phone-bar h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  font-style: italic;
  color: var(--text-bright);
  line-height: 1;
  margin-bottom: 0.3rem;
}

.phone-bar .sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.phone-stage {
  display: grid;
  grid-template-columns: 440px 1fr;
  gap: 2rem;
  padding: 1rem 2rem 1.5rem;
  max-width: 1400px;
  margin: 0 auto;
  align-items: start;
}

/* v22 · refactor: phone is now an image-stack inside a relative-positioned
   container instead of a single monolithic SVG with shape children. */
.phone-visual {
  position: relative;
  width: 100%;
  max-width: 440px;
  aspect-ratio: 1 / 1.3;        /* wider container — exploded view needs side-by-side breathing room */
  margin: 0 auto;
}

.phone-outline-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}
.phone-outline-svg .phone-body {
  fill: rgba(201, 169, 97, 0.015);
  stroke: rgba(201, 169, 97, 0.18);
  stroke-width: 1;
}

.phone-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
}

.phone-svg .phone-body {
  fill: #1a1a25;
  stroke: var(--accent-gold);
  stroke-width: 1.2;
  stroke-opacity: 0.6;
}

/* Component images positioned via inline CSS vars (--py, --px, --pw).
   transform-origin center for clean scale-on-hover. All components are
   peers in an exploded-view grid — none is "background", all are clickable. */
.phone-svg .phone-part {
  position: absolute;
  top: var(--py, 50%);
  left: var(--px, 50%);
  width: var(--pw, 30%);
  height: auto;
  transform: translate(-50%, -50%);
  transform-origin: center center;
  cursor: pointer;
  transition:
    filter 0.32s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.32s cubic-bezier(0.4, 0, 0.2, 1);
  filter: brightness(0.94) saturate(1.0);
  user-select: none;
  -webkit-user-drag: none;
  pointer-events: auto;
  z-index: 2;
}

.phone-svg .phone-part:hover {
  filter:
    brightness(1.15)
    saturate(1.2)
    drop-shadow(0 0 12px hsla(var(--section-hue, 130), 80%, 60%, 0.6));
  transform: translate(-50%, -50%) scale(1.06);
  z-index: 5;
}

.phone-svg .phone-part.active {
  filter:
    brightness(1.18)
    saturate(1.25)
    drop-shadow(0 0 18px hsla(var(--section-hue, 130), 85%, 65%, 0.85));
  transform: translate(-50%, -50%) scale(1.08);
  z-index: 6;
}

.phone-svg .phone-label {
  fill: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  pointer-events: none;
  text-transform: uppercase;
}

.phone-svg .phone-label.sm { font-size: 8px; letter-spacing: 0.12em; }

.phone-svg .phone-icon {
  fill: var(--accent-gold);
  fill-opacity: 0.4;
  pointer-events: none;
}

.phone-info {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--accent-gold);
  border-radius: 6px;
  padding: 1.2rem 1.4rem;
  min-height: 380px;
}

.phone-info-empty {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 6rem 1rem;
}

.phone-info h3 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.3rem;
  color: var(--text-bright);
  margin-bottom: 0.3rem;
}

.phone-info .pi-desc {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  margin-bottom: 1.1rem;
  line-height: 1.5;
}

.phone-info .pi-elements {
  display: grid;
  gap: 0.4rem;
}

.phone-info .pi-row {
  display: grid;
  grid-template-columns: 40px 1fr 50px 110px;
  gap: 0.7rem;
  align-items: center;
  padding: 0.5rem 0.6rem;
  background: var(--bg-deep);
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--row-color, var(--accent-gold));
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
}

.phone-info .pi-row:hover {
  border-color: var(--row-color, var(--accent-gold));
  background: rgba(201, 169, 97, 0.04);
}

.phone-info .pi-sym {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.4rem;
  color: var(--text-bright);
  text-align: center;
  line-height: 1;
}

.phone-info .pi-mid {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}

.phone-info .pi-name {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--text-soft);
}

.phone-info .pi-role {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-style: italic;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.phone-info .pi-pct {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-gold);
  text-align: right;
  font-weight: 500;
}

.phone-info .pi-prod {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  text-align: right;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.phone-info .pi-choke {
  display: inline-block;
  margin-left: 0.35em;
  color: #d36b6b;
  font-size: 0.7rem;
  vertical-align: middle;
  cursor: help;
  text-shadow: 0 0 4px rgba(211,107,107,0.4);
}

.phone-choke {
  padding: 1.5rem 2rem 0;
  max-width: 1400px;
  margin: 0 auto;
}

.phone-choke h3 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.9rem;
  text-align: center;
}

.choke-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.7rem;
}

.choke-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.9rem 0.7rem;
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-bottom: 2px solid var(--accent-gold);
  border-radius: 4px;
  gap: 0.15rem;
}

.choke-cell .ck-pct {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.9rem;
  color: var(--accent-gold);
  line-height: 1;
}

.choke-cell .ck-l {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-soft);
  margin-top: 0.2rem;
}

.choke-cell .ck-c {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

@media (max-width: 900px) {
  .phone-stage { grid-template-columns: 1fr; gap: 1rem; }
  .phone-visual { max-width: 380px; }
}

@media (max-width: 768px) {
  .phone-bar { padding: 1rem; }
  .phone-stage { padding: 1rem; }
  .phone-info { padding: 1rem; min-height: 0; }
  .phone-info .pi-row { grid-template-columns: 32px 1fr 40px 80px; gap: 0.5rem; padding: 0.45rem 0.5rem; }
  .phone-info .pi-sym { font-size: 1.15rem; }
  .phone-info .pi-role { font-size: 0.62rem; }
  .phone-info .pi-prod { font-size: 0.58rem; }
  .phone-choke { padding: 1rem 1rem 0; }
  .choke-cell .ck-pct { font-size: 1.5rem; }
}

/* ============================================================
   BODY SECTION — Human body element composition
   ============================================================ */
.body-section {
  background: var(--bg-deep);
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: 2rem;
}

.body-bar {
  padding: 1.5rem 2rem 1rem;
  max-width: 1400px;
  margin: 0 auto;
}

.body-bar h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  font-style: italic;
  color: var(--text-bright);
  line-height: 1;
  margin-bottom: 0.3rem;
}

.body-bar .sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.body-stage {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 2rem;
  padding: 1rem 2rem 1.5rem;
  max-width: 1400px;
  margin: 0 auto;
  align-items: start;
}

.body-visual {
  position: relative;
  width: 100%;
  max-width: 360px;
  aspect-ratio: 360 / 760;
  margin: 0 auto;
}

.body-outline-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.body-outline-svg .body-silhouette {
  fill: rgba(201, 169, 97, 0.025);
  stroke: rgba(201, 169, 97, 0.32);
  stroke-width: 1;
}

.body-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
}

/* Organ images positioned via inline CSS vars (--by, --bx, --bw). */
.body-svg .body-part {
  position: absolute;
  top: var(--by, 50%);
  left: var(--bx, 50%);
  width: var(--bw, 20%);
  height: auto;
  transform: translate(-50%, -50%);
  transform-origin: center center;
  cursor: pointer;
  transition:
    filter 0.32s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.32s cubic-bezier(0.4, 0, 0.2, 1);
  filter: brightness(0.95) saturate(1.0);
  user-select: none;
  -webkit-user-drag: none;
  z-index: 2;                    /* default mid-stack */
}

/* Big background organs — large area, must sit BELOW the smaller front
   organs so the small ones (heart between lungs!) stay reliably clickable. */
.body-svg .body-part[data-part="lungs"],
.body-svg .body-part[data-part="liver"],
.body-svg .body-part[data-part="muscle"] {
  z-index: 1;
}

/* Heart is small and lives anatomically *between* the lungs — without an
   explicit boost it gets swallowed by the lungs' transparent bounding box. */
.body-svg .body-part[data-part="heart"] {
  z-index: 3;
}

.body-svg .body-part:hover {
  filter:
    brightness(1.18)
    saturate(1.22)
    drop-shadow(0 0 14px hsla(var(--section-hue, 195), 80%, 60%, 0.65));
  transform: translate(-50%, -50%) scale(1.06);
  z-index: 5;
}

.body-svg .body-part.active {
  filter:
    brightness(1.22)
    saturate(1.3)
    drop-shadow(0 0 20px hsla(var(--section-hue, 195), 85%, 65%, 0.9));
  transform: translate(-50%, -50%) scale(1.09);
  z-index: 6;
}

/* Spine sits behind heart/liver visually — drop its z-index so they
   compose like real anatomy stack-up. */
.body-svg .body-part-spine {
  z-index: 1;
  filter: brightness(0.88) saturate(0.95);
}

/* DNA glows brighter at rest since it's the bottom-anchor symbol */
.body-svg .body-part-dna {
  filter: brightness(1.0) saturate(1.1);
}

.body-info {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--accent-gold);
  border-radius: 6px;
  padding: 1.2rem 1.4rem;
  min-height: 420px;
}

.body-info-empty {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 7rem 1rem;
}

.body-info h3 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.3rem;
  color: var(--text-bright);
  margin-bottom: 0.3rem;
}

.body-info .bi-desc {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  margin-bottom: 1.1rem;
  line-height: 1.5;
}

.body-info .bi-elements {
  display: grid;
  gap: 0.4rem;
}

.body-info .bi-row {
  display: grid;
  grid-template-columns: 40px 1fr 50px;
  gap: 0.7rem;
  align-items: center;
  padding: 0.5rem 0.6rem;
  background: var(--bg-deep);
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--row-color, var(--accent-gold));
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
}

.body-info .bi-row:hover {
  border-color: var(--row-color, var(--accent-gold));
  background: rgba(201, 169, 97, 0.04);
}

.body-info .bi-sym {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.4rem;
  color: var(--text-bright);
  text-align: center;
  line-height: 1;
}

.body-info .bi-mid {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}

.body-info .bi-name {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--text-soft);
}

.body-info .bi-role {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-style: italic;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.body-info .bi-amount {
  display: block;
  margin-top: 0.18rem;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--accent-gold);
  letter-spacing: 0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  opacity: 0.85;
}

.body-info .bi-pct {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-gold);
  text-align: right;
  font-weight: 500;
}

.body-paracelsus {
  padding: 1.5rem 2rem 0;
  max-width: 1000px;
  margin: 0 auto;
  text-align: center;
}

.body-paracelsus .par-quote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--text-soft);
  line-height: 1.4;
  letter-spacing: 0.02em;
}

.body-paracelsus .par-mark {
  color: var(--accent-gold);
  font-size: 1.6rem;
  vertical-align: -0.15em;
  margin: 0 0.15em;
}

.body-paracelsus .par-attrib {
  margin-top: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
}

@media (max-width: 900px) {
  .body-stage { grid-template-columns: 1fr; gap: 1rem; }
  .body-visual { max-width: 280px; }
}

@media (max-width: 768px) {
  .body-bar { padding: 1rem; }
  .body-stage { padding: 1rem; }
  .body-info { padding: 1rem; min-height: 0; }
  .body-info .bi-row { grid-template-columns: 32px 1fr 40px; gap: 0.5rem; padding: 0.45rem 0.5rem; }
  .body-info .bi-sym { font-size: 1.15rem; }
  .body-info .bi-role { font-size: 0.62rem; }
  .body-paracelsus { padding: 1rem; }
  .body-paracelsus .par-quote { font-size: 1rem; }
}

/* --- TOXICOLOGY LENS ---------------------------------------- */
.body-hero {
  position: relative;
  height: 280px;
  max-width: 1400px;
  margin: 0 auto;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
}
.body-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('timeline/body-hero.webp?v=20260517uu');
  background-size: cover;
  background-position: center 35%;
  filter: brightness(0.92) saturate(1.08) contrast(1.04);
}
.body-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(7, 7, 15, 0.35) 0%,
    rgba(7, 7, 15, 0.65) 60%,
    var(--bg-deep) 100%
  );
}
.body-hero .body-hero-overlay {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2rem;
  max-width: 720px;
}
.body-hero .body-hero-overlay .bh-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.4rem;
}
.body-hero .body-hero-overlay .bh-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1.2;
}

.body-paracelsus-with-avatar {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 1.4rem;
  align-items: center;
  text-align: left;
  padding: 1.5rem 2rem 0;
  max-width: 760px;
  margin: 0 auto;
}
.par-avatar {
  width: 92px;
  height: 92px;
  border-radius: 50%;
  overflow: hidden;
  border: 1px solid var(--line-mid);
  box-shadow: 0 0 0 4px var(--bg-deep), 0 0 18px rgba(201, 169, 97, 0.18);
  background: var(--bg-deep);
  flex-shrink: 0;
}
.par-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 22%;
  display: block;
}
.par-text-block {
  min-width: 0;
}

@media (max-width: 768px) {
  .body-hero { height: 200px; }
  .body-hero .body-hero-overlay { padding: 1.2rem; }
  .body-hero .body-hero-overlay .bh-title { font-size: 1.25rem; }
  .body-paracelsus-with-avatar { grid-template-columns: 1fr; gap: 0.9rem; justify-items: center; text-align: center; padding: 1rem; }
  .par-avatar { width: 76px; height: 76px; }
}

.body-info-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  margin-bottom: 0.9rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--line-soft);
}

.body-info-header .bi-head-left {
  min-width: 0;
}

.body-info-header h3 {
  margin-bottom: 0.15rem;
}

.tox-toggle {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.75rem;
  background: var(--bg-deep);
  border: 1px solid var(--line-mid);
  border-radius: 999px;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: all 0.25s;
}
.tox-toggle:hover {
  border-color: var(--accent-gold);
  color: var(--text-soft);
}
.tox-toggle.active {
  background: rgba(110, 31, 31, 0.18);
  border-color: #b1432c;
  color: #d4a574;
}
.tox-toggle .tox-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-dim);
  transition: all 0.25s;
}
.tox-toggle.active .tox-dot {
  background: #d4a574;
  box-shadow: 0 0 8px rgba(212, 165, 116, 0.6);
}

.body-info .bi-row.tox-expanded {
  background: rgba(110, 31, 31, 0.08);
  border-color: rgba(212, 165, 116, 0.4);
}

.tox-detail {
  grid-column: 1 / -1;
  margin-top: 0.8rem;
  padding-top: 0.8rem;
  border-top: 1px dashed var(--line-soft);
  display: grid;
  gap: 0.9rem;
}

.tox-cat {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: flex;
  gap: 0.6rem;
  align-items: center;
}
.tox-cat .tox-cat-pill {
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  border: 1px solid currentColor;
  font-size: 0.58rem;
}
.tox-cat.essential .tox-cat-pill { color: #7cb342; }
.tox-cat.beneficial .tox-cat-pill { color: #c9a961; }
.tox-cat.nonessential .tox-cat-pill { color: #8b8578; }
.tox-cat.toxic .tox-cat-pill { color: #b1432c; }

.tox-scale-wrap {
  display: grid;
  gap: 0.5rem;
}

.tox-scale {
  position: relative;
  height: 16px;
  background: linear-gradient(
    to right,
    #2d4a14 0%,
    #7cb342 16%,
    #c9a961 38%,
    #d4a574 58%,
    #b1432c 78%,
    #6e1f1f 100%
  );
  border-radius: 8px;
  overflow: visible;
  border: 1px solid var(--line-soft);
}

.tox-scale .tox-marker {
  position: absolute;
  top: -3px;
  bottom: -3px;
  width: 2px;
  background: var(--text-bright);
  transform: translateX(-50%);
  pointer-events: none;
}
.tox-scale .tox-marker::before {
  content: '';
  position: absolute;
  top: -5px;
  left: 50%;
  transform: translateX(-50%);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--bg-deep);
  border: 1.5px solid var(--text-bright);
}
.tox-scale .tox-marker.m-rda::before     { border-color: #7cb342; }
.tox-scale .tox-marker.m-ul::before      { border-color: #c9a961; }
.tox-scale .tox-marker.m-acute::before   { border-color: #d4a574; }
.tox-scale .tox-marker.m-lethal::before  { border-color: #6e1f1f; background: #6e1f1f; }

.tox-axis {
  position: relative;
  height: 28px;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}
.tox-axis .tox-tick {
  position: absolute;
  transform: translateX(-50%);
  text-align: center;
  white-space: nowrap;
  line-height: 1.1;
}
.tox-axis .tox-tick .tt-lab {
  display: block;
  font-size: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-dim);
  margin-bottom: 0.1rem;
}
.tox-axis .tox-tick .tt-val {
  color: var(--text-soft);
  font-size: 0.58rem;
}
.tox-axis .tox-tick.t-rda .tt-lab    { color: #7cb342; }
.tox-axis .tox-tick.t-ul .tt-lab     { color: #c9a961; }
.tox-axis .tox-tick.t-acute .tt-lab  { color: #d4a574; }
.tox-axis .tox-tick.t-lethal .tt-lab { color: #b1432c; }

.tox-story {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.88rem;
  line-height: 1.45;
  color: var(--text-soft);
  padding: 0.5rem 0.7rem;
  border-left: 2px solid var(--accent-gold);
  background: rgba(201, 169, 97, 0.04);
}

.tox-src {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.tox-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.tox-actions button {
  flex: 1;
  min-width: 100px;
  padding: 0.45rem 0.7rem;
  background: var(--bg-deep);
  border: 1px solid var(--line-mid);
  border-radius: 4px;
  color: var(--text-soft);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.2s;
}
.tox-actions button:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  background: rgba(201, 169, 97, 0.06);
}

.tox-nodata {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  text-align: center;
  padding: 0.6rem;
  border: 1px dashed var(--line-soft);
  border-radius: 4px;
}

@media (max-width: 768px) {
  .body-info-header { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
  .tox-toggle { font-size: 0.58rem; padding: 0.35rem 0.6rem; }
  .tox-axis { height: 32px; font-size: 0.5rem; }
  .tox-axis .tox-tick .tt-val { font-size: 0.55rem; }
  .tox-story { font-size: 0.82rem; }
}

.earth-element-filter .filter-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.2rem;
  text-align: center;
}

.filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  justify-content: center;
}

.filter-pill {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--pill-color, var(--accent-gold));
  color: var(--text-soft);
  padding: 0.55rem 1rem 0.55rem 0.85rem;
  border-radius: 6px;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  transition: all 0.2s;
  min-width: 105px;
  justify-content: flex-start;
}

.filter-pill:hover {
  border-color: var(--pill-color, var(--accent-gold));
  color: var(--text-bright);
  transform: translateY(-1px);
}

.filter-pill.active {
  background: var(--pill-color, var(--accent-gold));
  color: var(--bg-deep);
  border-color: var(--pill-color, var(--accent-gold));
  font-weight: 600;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.5);
}

.filter-pill .sym {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-style: italic;
  line-height: 1;
}

.filter-pill .nm {
  font-size: 0.78rem;
}

.earth-credit {
  padding: 0.8rem 2rem 1.2rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  color: var(--text-dim);
}

@media (max-width: 768px) {
  .earth-bar { padding: 1rem; flex-direction: column; align-items: flex-start; gap: 0.6rem; }
  .mode-switch { width: 100%; justify-content: space-between; }
  .mode-switch button { padding: 0.4rem 0.6rem; font-size: 0.55rem; flex: 1; }
  .earth-stage-wrap { height: 60vh; min-height: 400px; }
  .earth-info { top: 0.5rem; right: 0.5rem; left: 0.5rem; max-width: none; padding: 0.7rem 0.9rem; }
  .earth-info .title { font-size: 1.05rem; }
  .earth-element-filter { padding: 1rem; }
  .filter-pill { padding: 0.45rem 0.75rem 0.45rem 0.65rem; font-size: 0.7rem; min-width: 88px; }
  .filter-pill .sym { font-size: 1rem; }
  .filter-pill .nm { font-size: 0.68rem; }
}

/* ============================================================
   WHERE ON EARTH — modal distribution section
   ============================================================ */
.earth-grid {
  display: grid;
  gap: 0.6rem;
}

.earth-row {
  display: grid;
  grid-template-columns: 110px 1fr auto;
  gap: 0.8rem;
  align-items: center;
  padding: 0.55rem 0.8rem;
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--modal-color, var(--accent-gold));
  border-radius: 4px;
}

.earth-row .label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.earth-row .bar-wrap {
  position: relative;
  height: 6px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 3px;
  overflow: hidden;
}

.earth-row .bar {
  height: 100%;
  background: linear-gradient(90deg, var(--modal-color, var(--accent-gold)), var(--accent-gold));
  border-radius: 3px;
  transition: width 0.4s ease;
}

.earth-row .value {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-bright);
  white-space: nowrap;
}

.earth-layers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.4rem;
  margin-top: 0.5rem;
  padding: 0.6rem 0.8rem;
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: 4px;
}

.earth-layer-cell {
  text-align: center;
  padding: 0.3rem 0.2rem;
  position: relative;
  border-right: 1px solid var(--line-soft);
}

.earth-layer-cell:last-child { border-right: none; }

.earth-layer-cell .lname {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.earth-layer-cell .lval {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--text-bright);
  font-weight: 500;
  line-height: 1;
}

.earth-layer-cell.dominant .lval { color: var(--modal-color, var(--accent-gold)); }

.earth-layer-cell .ldepth {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  margin-top: 0.2rem;
}

.production-list {
  display: grid;
  gap: 0.35rem;
}

.production-row {
  display: grid;
  grid-template-columns: 32px 1fr 50px;
  gap: 0.7rem;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.production-row .ccode {
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--accent-gold);
  text-align: center;
  padding: 0.15rem 0.3rem;
  background: rgba(201, 169, 97, 0.1);
  border: 1px solid rgba(201, 169, 97, 0.25);
  border-radius: 3px;
}

.production-row .cname-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
}

.production-row .cname {
  color: var(--text-soft);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex-shrink: 0;
}

.production-row .cbar-wrap {
  flex: 1;
  height: 4px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 2px;
  overflow: hidden;
  min-width: 40px;
}

.production-row .cbar {
  height: 100%;
  background: linear-gradient(90deg, var(--modal-color, var(--accent-gold)), var(--accent-gold));
  border-radius: 2px;
}

.production-row .cpct {
  color: var(--text-bright);
  text-align: right;
}

.earth-note {
  font-size: 0.8rem;
  line-height: 1.55;
  color: var(--text-soft);
  padding: 0.7rem 0.9rem;
  background: rgba(201, 169, 97, 0.05);
  border-left: 2px solid var(--accent-gold);
  border-radius: 0 4px 4px 0;
  margin-top: 0.5rem;
  font-style: italic;
}

.earth-no-data {
  text-align: center;
  padding: 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
}

@media (max-width: 768px) {
  .earth-row { grid-template-columns: 80px 1fr auto; gap: 0.5rem; padding: 0.5rem 0.6rem; }
  .earth-row .label { font-size: 0.55rem; letter-spacing: 0.15em; }
  .earth-row .value { font-size: 0.72rem; }
  .earth-layers { gap: 0.2rem; padding: 0.5rem 0.4rem; }
  .earth-layer-cell .lval { font-size: 1.1rem; }
  .production-row { grid-template-columns: 28px 1fr 40px; gap: 0.5rem; font-size: 0.72rem; }
}

/* ============================================================
   GAME CTA & Overlay
   ============================================================ */
.game-cta {
  padding: 5rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.game-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 30%, rgba(255, 94, 58, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(199, 125, 255, 0.06) 0%, transparent 50%);
  pointer-events: none;
}

.game-cta-inner {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
}

.game-cta .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 1rem;
}

.game-cta h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  font-weight: 400;
  color: var(--text-bright);
  margin-bottom: 1rem;
  line-height: 1.1;
}

.game-cta h2 em {
  font-style: italic;
  color: var(--accent-gold);
}

.game-cta .desc {
  color: var(--text-soft);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 580px;
  margin-left: auto;
  margin-right: auto;
}

.play-btn {
  background: var(--accent-gold);
  color: var(--bg-deep);
  border: none;
  padding: 1rem 2.5rem;
  border-radius: 999px;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  font-weight: 500;
  transition: all 0.25s;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  box-shadow: 0 0 24px rgba(201, 169, 97, 0.3);
}

.play-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 32px rgba(201, 169, 97, 0.5);
}

.play-btn:active { transform: translateY(0); }

.play-btn .arrow {
  font-size: 1.1rem;
}

.game-modes-mini {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 2rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.game-modes-mini span {
  padding: 0.3rem 0.8rem;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
}

/* === Game Overlay (Fullscreen) === */
.game-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-deep);
  z-index: 2000;
  display: none;
  flex-direction: column;
  overflow: hidden;
}

.game-overlay.open { display: flex; }

.game-overlay::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(199, 125, 255, 0.05) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 80%, rgba(74, 158, 255, 0.04) 0%, transparent 60%);
  pointer-events: none;
}

.game-overlay::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 25% 30%, white, transparent),
    radial-gradient(1px 1px at 65% 60%, white, transparent),
    radial-gradient(1px 1px at 80% 20%, white, transparent),
    radial-gradient(1px 1px at 35% 80%, white, transparent),
    radial-gradient(1px 1px at 85% 50%, white, transparent);
  background-size: 500px 500px;
  opacity: 0.12;
  pointer-events: none;
}

.game-hud {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--line-soft);
  position: relative;
  z-index: 2;
  background: rgba(7, 7, 15, 0.6);
  backdrop-filter: blur(8px);
  flex-wrap: wrap;
  gap: 0.8rem;
}

.hud-section {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.hud-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.hud-value {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--text-bright);
  font-weight: 500;
  line-height: 1;
  min-width: 60px;
}

.hud-value.gold { color: var(--accent-gold); }

.hud-next {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

#hud-next-canvas {
  width: 40px;
  height: 40px;
  border: 1px solid var(--line-mid);
  border-radius: 50%;
  background: rgba(20, 20, 43, 0.5);
}

.hud-btn {
  background: transparent;
  border: 1px solid var(--line-mid);
  color: var(--text-soft);
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.hud-btn:hover {
  color: var(--accent-gold);
  border-color: var(--accent-gold);
}

.game-stage {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#game-canvas {
  display: block;
  touch-action: none;
  max-width: 100%;
  max-height: 100%;
  cursor: crosshair;
}

/* === Game Menu / Game Over Modal === */
.game-screen {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5;
  background: rgba(7, 7, 15, 0.92);
  backdrop-filter: blur(12px);
  padding: 2rem;
}

.game-screen.hidden { display: none; }

.game-screen-card {
  max-width: 480px;
  width: 100%;
  text-align: center;
  border: 1px solid var(--line-mid);
  border-top: 2px solid var(--accent-gold);
  border-radius: 12px;
  padding: 2.5rem 2rem;
  background: linear-gradient(180deg, var(--bg-mid) 0%, var(--bg-deep) 100%);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6), 0 0 60px rgba(201, 169, 97, 0.15);
}

.game-screen-card h2 {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 400;
  color: var(--text-bright);
  margin-bottom: 0.5rem;
  line-height: 1.05;
}

.game-screen-card h2 em {
  font-style: italic;
  color: var(--accent-gold);
}

.game-screen-card .sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.8rem;
}

.mode-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}

.mode-card {
  padding: 1rem 0.8rem;
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  cursor: pointer;
  font-family: inherit;
  color: inherit;
  transition: all 0.2s;
  text-align: center;
}

.mode-card:hover {
  border-color: var(--accent-gold);
  transform: translateY(-1px);
}

.mode-card .mode-name {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--text-bright);
  margin-bottom: 0.2rem;
}

.mode-card .mode-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.mode-card .mode-best {
  margin-top: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-gold);
}

.highscore-list {
  text-align: left;
  margin: 1.5rem 0;
  padding: 1rem;
  background: var(--bg-card);
  border-radius: 6px;
  border: 1px solid var(--line-soft);
}

.highscore-list .title {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
  text-align: center;
}

.highscore-row {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 0.25rem 0;
  color: var(--text-soft);
  border-bottom: 1px solid rgba(201, 169, 97, 0.08);
}

.highscore-row:last-child { border-bottom: none; }

.highscore-row .rank {
  color: var(--accent-gold);
  width: 28px;
}

.highscore-row .name {
  flex: 1;
  color: var(--text-soft);
}

.highscore-row .score {
  color: var(--text-bright);
  font-weight: 500;
}

.highscore-row.empty { color: var(--text-dim); justify-content: center; }

.game-screen .actions {
  display: flex;
  gap: 0.8rem;
  justify-content: center;
  flex-wrap: wrap;
}

.game-screen .actions .play-btn {
  padding: 0.85rem 2rem;
  font-size: 0.75rem;
}

.game-screen .btn-secondary {
  background: transparent;
  border: 1px solid var(--line-mid);
  color: var(--text-soft);
  padding: 0.85rem 2rem;
  border-radius: 999px;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  transition: all 0.2s;
}

.game-screen .btn-secondary:hover {
  color: var(--accent-gold);
  border-color: var(--accent-gold);
}

.specials-legend {
  margin: 1.5rem 0;
  display: grid;
  gap: 0.5rem;
  text-align: left;
}

.special-row {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 0.7rem;
  align-items: center;
  padding: 0.4rem 0.6rem;
  background: var(--bg-card);
  border-radius: 4px;
  border-left: 2px solid var(--accent-gold);
}

.special-row .sym {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--accent-gold);
  text-align: center;
}

.special-row .info .name {
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--text-bright);
  line-height: 1.1;
}

.special-row .info .ability {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.3;
  margin-top: 0.1rem;
}

/* Name input for highscore */
.name-input {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--line-mid);
  border-radius: 4px;
  padding: 0.7rem 1rem;
  color: var(--text-bright);
  font-family: var(--font-display);
  font-size: 1.1rem;
  text-align: center;
  margin: 1rem 0;
  letter-spacing: 0.05em;
}

.name-input:focus {
  outline: none;
  border-color: var(--accent-gold);
}

/* Mobile responsive game UI */
@media (max-width: 768px) {
  .game-cta { padding: 3rem 1rem; }
  .game-modes-mini { gap: 0.4rem; }
  .game-modes-mini span { font-size: 0.6rem; padding: 0.25rem 0.6rem; }
  .game-hud { padding: 0.6rem 0.8rem; gap: 0.5rem; }
  .hud-section { gap: 0.4rem; }
  .hud-value { font-size: 1.1rem; min-width: 40px; }
  .hud-label { font-size: 0.55rem; letter-spacing: 0.15em; }
  #hud-next-canvas { width: 32px; height: 32px; }
  .hud-btn { padding: 0.3rem 0.7rem; font-size: 0.6rem; }
  .game-screen-card { padding: 1.8rem 1.2rem; max-width: 380px; }
  .game-screen-card h2 { font-size: 1.8rem; }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
  .site-header { padding: 1rem; }
  .site-header nav { gap: 0.8rem; }
  .site-header nav a:not(.lang-toggle) { display: none; }
  .hero { padding: 5rem 1rem 3rem; }
  .hero-bg { opacity: 0.45; }
  .legend-section { padding: 2rem 1rem 1rem; }
  .legend-grid { grid-template-columns: repeat(2, 1fr); gap: 0.6rem; }
  .legend-card .text-frame { padding: 0.7rem; }
  .legend-card .symbol { font-size: 1.2rem; }
  .legend-card .desc { font-size: 0.75rem; }
  .controls { padding: 1rem; gap: 1rem; flex-direction: column; }
  .temp-slider-wrap { width: 100%; min-width: 0; }
  .modal { margin: 0; }
  .modal-header { padding: 2rem 1.5rem 1.2rem; grid-template-columns: 1fr; gap: 1rem; text-align: center; justify-items: center; }
  .modal-body { padding: 1.5rem; }
  .modal-title-block .name { font-size: 2rem; text-align: center; }
  .layers-section { padding: 3rem 1rem; }
  .layer { grid-template-columns: 1fr; gap: 0.8rem; }
  .orbital-display { grid-template-columns: 1fr; }
  .orbital-display img { max-width: 200px; margin: 0 auto; }
  .nucleosynthesis-banner { margin: 3rem -1rem 1.5rem; }
  .nucleosynthesis-banner .banner-caption { font-size: 0.55rem; letter-spacing: 0.1em; padding: 0.5rem 0.3rem; }
  .helix-bar { padding: 1rem; flex-direction: column; align-items: flex-start; gap: 0.6rem; }
  .helix-bar .controls-inline { width: 100%; justify-content: space-between; }
  .helix-stage-wrap { height: 60vh; min-height: 420px; }
  .helix-overlay { font-size: 0.55rem; letter-spacing: 0.1em; }
  .helix-overlay .hint span:not(:first-child) { display: none; }
}

/* Print-friendly */
@media print {
  body::before, body::after { display: none; }
  .controls, .modal-overlay { display: none; }
}

/* ============================================================
   PHASE 9 — PRODUCT POLISH: Splash, Roadmap, Credits
   ============================================================ */

/* --- Splash Loader ---------------------------------------- */
.splash {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: var(--bg-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: all;
  animation: splash-fade 1.8s ease-out 1.1s forwards;
}
.splash.gone { display: none; }
.splash-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  animation: splash-rise 1.6s ease-out forwards;
  opacity: 0;
}
.splash-img {
  width: 220px;
  max-width: 60vw;
  height: auto;
  display: block;
  filter: drop-shadow(0 0 30px rgba(201, 169, 97, 0.25));
}
.splash-caption {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  text-align: center;
}
.splash-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--accent-gold);
}
.splash-tag {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--text-soft);
  max-width: 320px;
  line-height: 1.4;
}
@keyframes splash-rise {
  0%   { opacity: 0; transform: translateY(16px); }
  35%  { opacity: 1; transform: translateY(0); }
  100% { opacity: 1; transform: translateY(0); }
}
@keyframes splash-fade {
  0%   { opacity: 1; }
  100% { opacity: 0; visibility: hidden; }
}
@media (prefers-reduced-motion: reduce) {
  .splash { animation: splash-fade 0.4s linear forwards; }
  .splash-inner { animation: none; opacity: 1; }
}

/* --- Roadmap Section -------------------------------------- */
.roadmap-section {
  position: relative;
  padding: 3rem 2rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}
.roadmap-section::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 1px;
  background: var(--accent-gold);
  opacity: 0.4;
}
.roadmap-header {
  text-align: center;
  margin-bottom: 2rem;
}
.roadmap-header .rm-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.4rem;
}
.roadmap-header h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-style: italic;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1.2;
  margin-bottom: 0.5rem;
}
.roadmap-header .rm-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}
.roadmap-card {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--accent-gold);
  border-radius: 6px;
  padding: 1.1rem 1.2rem;
  position: relative;
  transition: all 0.25s;
}
.roadmap-card:hover {
  border-color: var(--accent-gold);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}
.roadmap-card .rc-phase {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 0.3rem;
}
.roadmap-card .rc-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--text-bright);
  margin-bottom: 0.5rem;
}
.roadmap-card .rc-desc {
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--text-soft);
  margin-bottom: 0.7rem;
}
.roadmap-card .rc-status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.18rem 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  border: 1px solid var(--line-mid);
  border-radius: 999px;
}
.roadmap-card .rc-status::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--text-muted);
}
.roadmap-card .rc-status.planned::before  { background: var(--accent-gold); }
.roadmap-card .rc-status.research::before { background: #c77dff; }
.roadmap-card .rc-status.released {
  color: #7cb342;
  border-color: #7cb342;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
}
.roadmap-card .rc-status.released::before { background: #7cb342; box-shadow: 0 0 6px rgba(124, 179, 66, 0.5); }
.roadmap-card .rc-status.released:hover {
  background: rgba(124, 179, 66, 0.1);
  border-color: #a0d65e;
  color: #a0d65e;
}
/* Visited / revisit state — card user has already spent time in.
   Subtle gold accent instead of the released-green. */
.roadmap-card.visited {
  border-color: color-mix(in oklab, var(--accent-gold) 35%, var(--line-mid));
  background: color-mix(in oklab, var(--accent-gold) 3%, transparent);
}
.roadmap-card .rc-status.revisit {
  color: var(--accent-gold);
  border-color: var(--accent-gold);
}
.roadmap-card .rc-status.revisit::before {
  background: var(--accent-gold);
  box-shadow: 0 0 6px color-mix(in oklab, var(--accent-gold) 50%, transparent);
}
.roadmap-card .rc-status.revisit:hover {
  background: color-mix(in oklab, var(--accent-gold) 12%, transparent);
}

/* --- Credits / Sources / License -------------------------- */
.credits-section {
  padding: 2.5rem 2rem 1rem;
  max-width: 1200px;
  margin: 0 auto;
  border-top: 1px solid var(--line-soft);
}
.credits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
}
.credits-col h3 {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.7rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--line-soft);
}
.credits-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.credits-col li {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-soft);
  letter-spacing: 0.03em;
  line-height: 1.5;
}
.credits-col li::before {
  content: '·';
  color: var(--accent-gold);
  margin-right: 0.45rem;
}
.credits-col a {
  color: var(--text-soft);
  text-decoration: none;
  border-bottom: 1px dotted var(--line-mid);
  transition: all 0.2s;
}
.credits-col a:hover {
  color: var(--accent-gold);
  border-bottom-color: var(--accent-gold);
}
.credits-col .lic-line {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--text-bright);
  line-height: 1.4;
  margin-top: 0.6rem;
}

@media (max-width: 768px) {
  .roadmap-section { padding: 2rem 1rem 1.5rem; }
  .roadmap-header h2 { font-size: 1.3rem; }
  .roadmap-grid { grid-template-columns: 1fr; }
  .credits-section { padding: 2rem 1rem 1rem; }
  .credits-grid { gap: 1.5rem; }
  .splash-img { width: 160px; }
  .splash-tag { font-size: 0.95rem; }
}

/* --- Chazon Universe — Other Modules ---------------------- */
.universe-section {
  padding: 2.5rem 2rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}
.universe-header {
  text-align: center;
  margin-bottom: 1.8rem;
}
.universe-header .uh-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.4rem;
}
.universe-header h2 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1.2;
  margin-bottom: 0.5rem;
}
.universe-header .uh-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.universe-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.2rem;
}
.cu-card {
  --cu-primary: var(--accent-gold);
  --cu-accent: var(--accent-copper);
  --cu-glow: rgba(201, 169, 97, 0.25);
  position: relative;
  display: block;
  padding: 1.6rem 1.4rem 1.4rem;
  aspect-ratio: 4 / 5;
  background: var(--bg-deep);
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: all 0.35s cubic-bezier(.2,.7,.2,1);
  isolation: isolate;
}
.cu-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 25%, var(--cu-primary) 0%, transparent 45%),
    radial-gradient(circle at 75% 80%, var(--cu-accent) 0%, transparent 55%);
  opacity: 0.18;
  z-index: 0;
  transition: opacity 0.4s ease;
}
.cu-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(7, 7, 15, 0.1) 0%,
    rgba(7, 7, 15, 0.6) 70%,
    rgba(7, 7, 15, 0.92) 100%);
  z-index: 1;
}
.cu-card:hover {
  border-color: var(--cu-primary);
  transform: translateY(-3px);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.55), 0 0 36px var(--cu-glow);
}
.cu-card:hover::before { opacity: 0.32; }
.cu-card .cu-inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.cu-card .cu-sigil {
  font-family: var(--font-display);
  font-size: 3.8rem;
  color: var(--cu-primary);
  line-height: 1;
  margin-bottom: 1rem;
  filter: drop-shadow(0 0 16px var(--cu-glow));
}
.cu-card .cu-bottom {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.cu-card .cu-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--cu-primary);
}
.cu-card .cu-title {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: 1.7rem;
  color: var(--text-bright);
  line-height: 1.1;
}
.cu-card .cu-desc {
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--text-soft);
  margin-bottom: 0.4rem;
}
.cu-card .cu-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cu-primary);
  padding: 0.5rem 0.8rem;
  border: 1px solid var(--cu-primary);
  border-radius: 4px;
  align-self: flex-start;
  transition: all 0.25s;
  background: rgba(7, 7, 15, 0.4);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.cu-card:hover .cu-cta {
  background: var(--cu-primary);
  color: var(--bg-deep);
}
.cu-card .cu-arrow {
  display: inline-block;
  transition: transform 0.25s;
}
.cu-card:hover .cu-arrow { transform: translateX(4px); }

/* Brand themes per Chazon module — palette from Living Wholeness identity */
.cu-card[data-mod="merkaba"] {
  --cu-primary: #c77dff;
  --cu-accent: #4a9eff;
  --cu-glow: rgba(199, 125, 255, 0.3);
}
.cu-card[data-mod="shalem"] {
  --cu-primary: #c9a961;
  --cu-accent: #7cb342;
  --cu-glow: rgba(201, 169, 97, 0.3);
}
.cu-card[data-mod="chazon"] {
  --cu-primary: #ff5e3a;
  --cu-accent: #c77dff;
  --cu-glow: rgba(255, 94, 58, 0.3);
}

/* "You are here" badge for elements card */
.cu-card.cu-current {
  border-style: dashed;
  cursor: default;
  pointer-events: auto;
}
.cu-card.cu-current:hover { transform: none; box-shadow: none; }
.cu-card .cu-here-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 2;
  padding: 0.25rem 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-gold);
  border: 1px solid var(--accent-gold);
  border-radius: 999px;
  background: rgba(7, 7, 15, 0.7);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

@media (max-width: 768px) {
  .universe-section { padding: 2rem 1rem 1.5rem; }
  .universe-header h2 { font-size: 1.3rem; }
  .universe-grid { grid-template-columns: 1fr; gap: 1rem; }
  .cu-card { aspect-ratio: auto; min-height: 320px; padding: 1.4rem 1.2rem 1.2rem; }
  .cu-card .cu-sigil { font-size: 3rem; margin-bottom: 0.8rem; }
  .cu-card .cu-title { font-size: 1.4rem; }
}

/* ============================================================
   UNIFICATION QUEST — Phase 14 · Theory of Everything
   Historical unification arc + 10 ToE candidate cards
   ============================================================ */
.unification-section {
  position: relative;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 0 2rem;
}

.unification-hero {
  position: relative;
  height: 360px;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
}
.unification-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 35% at 50% 50%, rgba(201, 169, 97, 0.22) 0%, transparent 60%),
    radial-gradient(circle at 18% 30%, rgba(255, 94, 58, 0.10) 0%, transparent 35%),
    radial-gradient(circle at 38% 65%, rgba(255, 209, 102, 0.10) 0%, transparent 35%),
    radial-gradient(circle at 62% 30%, rgba(74, 158, 255, 0.10) 0%, transparent 35%),
    radial-gradient(circle at 82% 65%, rgba(199, 125, 255, 0.12) 0%, transparent 35%),
    var(--bg-deep);
}
.unification-hero[data-img="true"]::before {
  background-image: url('timeline/unification-hero.webp?v=20260517uu');
  background-size: cover;
  background-position: center;
  filter: brightness(0.82) saturate(1.08);
}
.unification-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 7, 15, 0.5) 0%, rgba(7, 7, 15, 0.6) 60%, var(--bg-deep) 100%);
}
.unification-hero-overlay {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  text-align: center;
}
.unification-hero-overlay .bh-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.4rem;
}
.unification-hero-overlay .bh-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 2.2rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1.05;
  margin-bottom: 0.6rem;
  max-width: 780px;
}
.unification-hero-overlay .bh-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  max-width: 620px;
  line-height: 1.5;
}

/* Unification timeline — horizontal narrative arc */
.unif-arc-bar {
  padding: 1.5rem 2rem 0.5rem;
  max-width: 1300px;
  margin: 0 auto;
}
.unif-arc-bar h2 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1;
  margin-bottom: 0.3rem;
}
.unif-arc-bar .sub {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.unif-arc {
  position: relative;
  max-width: 1300px;
  margin: 1rem auto 0;
  padding: 0 2rem 2rem;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-gold) transparent;
}
.unif-arc-inner {
  position: relative;
  min-width: 980px;
  display: flex;
  align-items: stretch;
  gap: 0.7rem;
  padding-top: 1rem;
}
.unif-arc-line {
  position: absolute;
  top: 80px;
  left: 2.5rem;
  right: 2.5rem;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--accent-gold) 8%, var(--accent-gold) 92%, transparent 100%);
  opacity: 0.6;
  z-index: 0;
}
.unif-step {
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 1;
  min-width: 0;
}
.unif-step-year {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.unif-step-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent-gold);
  margin-bottom: 0.8rem;
  box-shadow: 0 0 12px rgba(201, 169, 97, 0.5);
  position: relative;
}
.unif-step-dot::after {
  content: '';
  position: absolute;
  inset: -4px;
  border: 1px solid var(--accent-gold);
  border-radius: 50%;
  opacity: 0.35;
}
.unif-step-content {
  text-align: center;
  padding: 0 0.4rem;
}
.unif-step-by {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.3rem;
}
.unif-step-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1.2;
  margin-bottom: 0.3rem;
}
.unif-step-merged {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  color: var(--text-soft);
  font-style: italic;
  line-height: 1.4;
}

/* Candidates Mosaic - 10 ToE theory cards */
.unif-mosaic-bar {
  padding: 1.5rem 2rem 0.5rem;
  max-width: 1300px;
  margin: 1.5rem auto 0;
  border-top: 1px solid var(--line-soft);
}
.unif-mosaic-bar h2 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text-bright);
  margin-bottom: 0.3rem;
}
.unif-mosaic-bar .sub {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.unif-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  padding: 1rem 2rem;
  max-width: 1300px;
  margin: 0 auto;
}
.toe-card {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  padding: 1.1rem 1.2rem 1rem;
  position: relative;
  transition: all 0.22s;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  --toe-color: var(--accent-gold);
}
.toe-card[data-status="active"]      { --toe-color: #c9a961; }
.toe-card[data-status="frontier"]    { --toe-color: #ff5e3a; }
.toe-card[data-status="historical"]  { --toe-color: #4a9eff; }
.toe-card[data-status="speculative"] { --toe-color: #c77dff; }
.toe-card[data-status="contested"]   { --toe-color: #7cb342; }
.toe-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--toe-color);
}
.toe-card:hover {
  border-color: var(--toe-color);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.4), 0 0 18px rgba(201, 169, 97, 0.1);
}
.toe-card.featured {
  border-color: var(--accent-gold);
  background: linear-gradient(180deg, rgba(201, 169, 97, 0.06) 0%, transparent 50%), var(--bg-card);
}
.toe-card.featured::after {
  content: 'NEW · 2025';
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  padding: 0.15rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.5rem;
  letter-spacing: 0.25em;
  color: var(--bg-deep);
  background: var(--accent-gold);
  border-radius: 999px;
  font-weight: 600;
}

.toe-status {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--toe-color);
}
.toe-name {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1.15;
}
.toe-by {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-top: -0.3rem;
}
.toe-desc {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.85rem;
  line-height: 1.45;
  color: var(--text-soft);
  border-left: 2px solid var(--toe-color);
  padding: 0.25rem 0 0.25rem 0.6rem;
}
.toe-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin-top: auto;
}
.toe-tag {
  font-family: var(--font-mono);
  font-size: 0.5rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 0.15rem 0.4rem;
  border: 1px solid var(--line-soft);
  border-radius: 3px;
}

.unif-pullquote {
  margin: 2rem auto 1rem;
  max-width: 760px;
  padding: 1.5rem 2rem 0;
  text-align: center;
  border-top: 1px solid var(--line-soft);
}
.unif-pullquote blockquote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.35rem;
  line-height: 1.4;
  color: var(--text-bright);
  margin: 0 0 0.6rem;
  padding: 0;
}
.unif-pullquote blockquote::before,
.unif-pullquote blockquote::after {
  color: var(--accent-gold);
  font-style: normal;
  margin: 0 0.15em;
}
.unif-pullquote blockquote::before { content: '"'; }
.unif-pullquote blockquote::after  { content: '"'; }
.unif-pullquote cite {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .unification-hero { height: 260px; }
  .unification-hero-overlay { padding: 1.3rem; }
  .unification-hero-overlay .bh-title { font-size: 1.5rem; }
  .unification-hero-overlay .bh-sub { font-size: 0.6rem; letter-spacing: 0.15em; }
  .unif-arc-bar, .unif-mosaic-bar { padding: 1.2rem 1rem 0.4rem; }
  .unif-arc { padding: 0 1rem 1.5rem; }
  .unif-grid { padding: 1rem; grid-template-columns: 1fr; gap: 0.8rem; }
  .toe-card { padding: 1rem 1rem 0.9rem; }
  .toe-name { font-size: 1.05rem; }
  .unif-pullquote { padding: 1.2rem 1rem 0; }
  .unif-pullquote blockquote { font-size: 1.1rem; }
}

/* ============================================================
   GRAVITATIONAL WAVE OBSERVATORY — Phase 15
   LIGO·Virgo·KAGRA detectors + observing runs + iconic events
   ============================================================ */
.gwave-section {
  position: relative;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 0 2rem;
}

.gwave-hero {
  position: relative;
  height: 380px;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
}
.gwave-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 30% 80% at 50% 50%, rgba(74, 158, 255, 0.18) 0%, transparent 60%),
    linear-gradient(180deg, transparent 0%, rgba(74, 158, 255, 0.06) 50%, transparent 100%),
    var(--bg-deep);
}
.gwave-hero[data-img="true"]::before {
  background-image: url('timeline/gwave-hero.webp?v=20260517uu');
  background-size: cover;
  background-position: center;
  filter: brightness(0.78) saturate(1.1);
}
.gwave-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 7, 15, 0.5) 0%, rgba(7, 7, 15, 0.6) 60%, var(--bg-deep) 100%);
}
.gwave-hero-overlay {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  text-align: center;
}
.gwave-hero-overlay .bh-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: #4a9eff;
  margin-bottom: 0.4rem;
}
.gwave-hero-overlay .bh-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 2.2rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1.05;
  margin-bottom: 0.6rem;
  max-width: 800px;
}
.gwave-hero-overlay .bh-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  max-width: 640px;
  line-height: 1.5;
}

/* Animated chirp SVG (signature waveform visualization) */
.gwave-chirp-row {
  padding: 1.5rem 2rem;
  max-width: 1300px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 2rem;
  align-items: center;
}
.gwave-chirp-text h2 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text-bright);
  margin-bottom: 0.5rem;
  line-height: 1.1;
}
.gwave-chirp-text .sub {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #4a9eff;
  margin-bottom: 0.8rem;
}
.gwave-chirp-text p {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--text-soft);
  margin: 0 0 0.5rem 0;
}
.gwave-chirp-text .stat {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  margin-right: 1.2rem;
  margin-top: 0.6rem;
}
.gwave-chirp-text .stat-num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.6rem;
  color: #4a9eff;
  font-weight: 500;
}
.gwave-chirp-text .stat-label {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.gwave-chirp-svg {
  width: 100%;
  height: 200px;
}
.gwave-chirp-svg path { fill: none; stroke-linecap: round; }
.gwave-chirp-svg .chirp-line {
  stroke: #4a9eff;
  stroke-width: 1.5;
  filter: drop-shadow(0 0 6px rgba(74, 158, 255, 0.5));
}
.gwave-chirp-svg .chirp-line-2 {
  stroke: rgba(201, 169, 97, 0.35);
  stroke-width: 1;
}
.gwave-chirp-svg .axis-line { stroke: var(--line-soft); stroke-width: 0.5; }
.gwave-chirp-svg .axis-label {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.15em;
  fill: var(--text-dim);
  text-transform: uppercase;
}

@media (prefers-reduced-motion: no-preference) {
  .gwave-chirp-svg .chirp-line {
    stroke-dasharray: 1200;
    stroke-dashoffset: 1200;
    animation: chirp-draw 3.5s ease-out forwards;
  }
}
@keyframes chirp-draw {
  to { stroke-dashoffset: 0; }
}

/* Detector Map */
.gwave-section-bar {
  padding: 1.2rem 2rem 0.5rem;
  max-width: 1300px;
  margin: 1.5rem auto 0;
  border-top: 1px solid var(--line-soft);
}
.gwave-section-bar h2 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--text-bright);
  margin-bottom: 0.3rem;
}
.gwave-section-bar .sub {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.gwave-detectors {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.8rem;
  padding: 1rem 2rem;
  max-width: 1300px;
  margin: 0 auto;
}
.detector-card {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  padding: 1rem 1.1rem;
  position: relative;
  --d-color: var(--accent-gold);
}
.detector-card[data-status="active"] { --d-color: #7cb342; }
.detector-card[data-status="upgrading"] { --d-color: #ffd166; }
.detector-card[data-status="construction"] { --d-color: #ff5e3a; }
.detector-card[data-status="planned"] { --d-color: #c77dff; }
.detector-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--d-color);
}
.detector-name {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.05rem;
  color: var(--text-bright);
  font-weight: 500;
  line-height: 1.1;
}
.detector-loc {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 0.2rem;
}
.detector-meta {
  display: flex;
  gap: 1rem;
  margin-top: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  color: var(--text-soft);
}
.detector-meta strong {
  color: var(--text-bright);
  font-weight: 500;
}
.detector-status {
  display: inline-block;
  margin-top: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.5rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--d-color);
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--d-color);
  border-radius: 3px;
}

/* Observing Runs Timeline (horizontal) */
.gwave-runs {
  padding: 1rem 2rem 1.5rem;
  max-width: 1300px;
  margin: 0 auto;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: #4a9eff transparent;
}
.gwave-runs-inner {
  display: flex;
  gap: 0.6rem;
  min-width: 900px;
  align-items: stretch;
}
.run-card {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  padding: 0.9rem 0.8rem;
  position: relative;
  min-width: 0;
}
.run-card[data-status="past"] { opacity: 0.85; }
.run-card[data-status="upcoming"] { border-color: rgba(74, 158, 255, 0.4); background: linear-gradient(180deg, rgba(74, 158, 255, 0.04) 0%, transparent 100%), var(--bg-card); }
.run-card[data-status="future"] { border-style: dashed; }
.run-label {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.2rem;
  color: var(--text-bright);
  line-height: 1;
  margin-bottom: 0.1rem;
}
.run-dates {
  font-family: var(--font-mono);
  font-size: 0.52rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.run-detections {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.8rem;
  color: #4a9eff;
  font-weight: 500;
  line-height: 1;
}
.run-detections.empty { color: var(--text-dim); font-size: 1rem; }
.run-detections-label {
  font-family: var(--font-mono);
  font-size: 0.5rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-top: 0.2rem;
}

/* Iconic detections — single-column flow */
.gwave-events {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
  padding: 1rem 2rem;
  max-width: 1300px;
  margin: 0 auto;
}
.event-card {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  padding: 1.1rem 1.2rem 1rem;
  position: relative;
  transition: all 0.2s;
  --evt-color: var(--accent-gold);
}
.event-card[data-type="bbh"] { --evt-color: #4a9eff; }
.event-card[data-type="bns"] { --evt-color: #ff5e3a; }
.event-card[data-type="nsbh"] { --evt-color: #c77dff; }
.event-card[data-type="record"] { --evt-color: #ffd166; }
.event-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--evt-color);
}
.event-card:hover {
  border-color: var(--evt-color);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.4);
}
.event-code {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  color: var(--evt-color);
  margin-bottom: 0.2rem;
}
.event-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1.15;
  margin-bottom: 0.4rem;
}
.event-date {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: 0.7rem;
}
.event-desc {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.85rem;
  line-height: 1.45;
  color: var(--text-soft);
  border-left: 2px solid var(--evt-color);
  padding: 0.25rem 0 0.25rem 0.6rem;
  margin-bottom: 0.7rem;
}
.event-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.event-meta-pill {
  font-family: var(--font-mono);
  font-size: 0.5rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 0.15rem 0.4rem;
  border: 1px solid var(--line-soft);
  border-radius: 3px;
}

.gwave-pullquote {
  margin: 2rem auto 1rem;
  max-width: 760px;
  padding: 1.5rem 2rem 0;
  text-align: center;
  border-top: 1px solid var(--line-soft);
}
.gwave-pullquote blockquote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.3rem;
  line-height: 1.4;
  color: var(--text-bright);
  margin: 0 0 0.6rem;
  padding: 0;
}
.gwave-pullquote blockquote::before,
.gwave-pullquote blockquote::after {
  color: #4a9eff;
  font-style: normal;
  margin: 0 0.15em;
}
.gwave-pullquote blockquote::before { content: '"'; }
.gwave-pullquote blockquote::after  { content: '"'; }
.gwave-pullquote cite {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.58rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
}

@media (max-width: 900px) {
  .gwave-chirp-row { grid-template-columns: 1fr; gap: 1.2rem; padding: 1.2rem 1rem; }
}
@media (max-width: 768px) {
  .gwave-hero { height: 280px; }
  .gwave-hero-overlay { padding: 1.3rem; }
  .gwave-hero-overlay .bh-title { font-size: 1.5rem; }
  .gwave-hero-overlay .bh-sub { font-size: 0.6rem; letter-spacing: 0.15em; }
  .gwave-section-bar { padding: 1rem 1rem 0.4rem; }
  .gwave-detectors { padding: 1rem; grid-template-columns: 1fr; gap: 0.6rem; }
  .gwave-events { padding: 1rem; grid-template-columns: 1fr; }
  .gwave-pullquote { padding: 1.2rem 1rem 0; }
  .gwave-pullquote blockquote { font-size: 1.05rem; }
}

/* ============================================================
   DARK UNIVERSE — Phase 16 · 95% Unknown
   Cosmic composition · Hubble tension · DM/DE candidates
   ============================================================ */
.dark-section {
  position: relative;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 0 2rem;
}
.dark-hero {
  position: relative;
  height: 380px;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
}
.dark-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 40% at 50% 50%, rgba(199, 125, 255, 0.10) 0%, transparent 60%),
    radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.03) 0%, transparent 12%),
    radial-gradient(circle at 70% 80%, rgba(255, 255, 255, 0.025) 0%, transparent 10%),
    radial-gradient(circle at 85% 30%, rgba(255, 255, 255, 0.02) 0%, transparent 8%),
    var(--bg-deep);
}
.dark-hero[data-img="true"]::before {
  background-image: url('timeline/dark-hero.webp?v=20260517uu');
  background-size: cover;
  background-position: center;
  filter: brightness(0.75) saturate(1.05);
}
.dark-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 7, 15, 0.5) 0%, rgba(7, 7, 15, 0.6) 60%, var(--bg-deep) 100%);
}
.dark-hero-overlay {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  text-align: center;
}
.dark-hero-overlay .bh-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: #c77dff;
  margin-bottom: 0.4rem;
}
.dark-hero-overlay .bh-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 2.4rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1.05;
  margin-bottom: 0.6rem;
  max-width: 820px;
}
.dark-hero-overlay .bh-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  max-width: 660px;
  line-height: 1.5;
}

/* Composition Donut Row */
.dark-comp-row {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 2.5rem;
  align-items: center;
  padding: 2rem 2rem;
  max-width: 1300px;
  margin: 0 auto;
}
.dark-donut {
  width: 100%;
  max-width: 360px;
  aspect-ratio: 1 / 1;
  position: relative;
}
.dark-donut-svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.dark-donut-center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  pointer-events: none;
}
.dark-donut-num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 4rem;
  font-weight: 500;
  color: #c77dff;
  line-height: 1;
  text-shadow: 0 0 20px rgba(199, 125, 255, 0.4);
}
.dark-donut-label {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 0.4rem;
}
.dark-comp-text h2 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.7rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1.1;
  margin-bottom: 0.5rem;
}
.dark-comp-text .sub {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #c77dff;
  margin-bottom: 1rem;
}
.dark-comp-text p {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1rem;
  line-height: 1.55;
  color: var(--text-soft);
  margin: 0 0 1rem 0;
}
.dark-comp-legend {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.5rem;
}
.dcl-row {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.4rem 0;
}
.dcl-swatch {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  flex-shrink: 0;
}
.dcl-num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.2rem;
  color: var(--text-bright);
  font-weight: 500;
  min-width: 50px;
}
.dcl-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-soft);
  flex: 1;
}
.dcl-note {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Hubble Tension */
.dark-tension {
  padding: 1.5rem 2rem;
  max-width: 1300px;
  margin: 0 auto;
  border-top: 1px solid var(--line-soft);
}
.dark-tension h2 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.5rem;
  color: var(--text-bright);
  margin-bottom: 0.3rem;
}
.dark-tension .sub {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.2rem;
}
.tension-bar {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 1rem;
}
.tension-side {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  padding: 1.2rem 1.3rem;
  position: relative;
}
.tension-side.local::before, .tension-side.early::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
}
.tension-side.local::before { background: #ff5e3a; }
.tension-side.early::before { background: #4a9eff; }
.tension-label {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}
.tension-side.local .tension-label { color: #ff5e3a; }
.tension-side.early .tension-label { color: #4a9eff; }
.tension-num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 2.8rem;
  font-weight: 500;
  line-height: 1;
  color: var(--text-bright);
}
.tension-num small { font-size: 0.5em; color: var(--text-muted); }
.tension-unit {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-top: 0.2rem;
  margin-bottom: 0.5rem;
}
.tension-method {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--text-soft);
}
.tension-source {
  font-family: var(--font-mono);
  font-size: 0.5rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-top: 0.6rem;
}
.tension-gap {
  text-align: center;
  margin-top: 1.2rem;
  padding: 0.8rem 1rem;
  background: linear-gradient(90deg, rgba(255, 94, 58, 0.08), rgba(199, 125, 255, 0.08), rgba(74, 158, 255, 0.08));
  border: 1px dashed rgba(199, 125, 255, 0.3);
  border-radius: 6px;
}
.tension-gap-num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.4rem;
  color: #c77dff;
  font-weight: 500;
}
.tension-gap-label {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-soft);
  margin-top: 0.2rem;
}

/* Candidate cards (DM + DE) */
.dark-candidates {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  padding: 1rem 2rem;
  max-width: 1300px;
  margin: 0 auto;
}
.candidate-card {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  padding: 1.1rem 1.2rem 1rem;
  position: relative;
  transition: all 0.22s;
  --cand-color: var(--accent-gold);
}
.candidate-card[data-cat="dm"] { --cand-color: #c77dff; }
.candidate-card[data-cat="de"] { --cand-color: #ffd166; }
.candidate-card[data-cat="alt"] { --cand-color: #7cb342; }
.candidate-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--cand-color);
}
.candidate-card:hover {
  border-color: var(--cand-color);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.4);
}
.cand-cat {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--cand-color);
}
.cand-name {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1.15;
  margin: 0.2rem 0;
}
.cand-status {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
}
.cand-desc {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.85rem;
  line-height: 1.45;
  color: var(--text-soft);
  border-left: 2px solid var(--cand-color);
  padding: 0.25rem 0 0.25rem 0.6rem;
}

/* JWST 2026 panel */
.dark-jwst {
  margin: 1.5rem auto 0;
  max-width: 1300px;
  padding: 1.5rem 2rem;
  border-top: 1px solid var(--line-soft);
}
.dark-jwst h2 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.5rem;
  color: var(--text-bright);
  margin-bottom: 0.3rem;
}
.dark-jwst .sub {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1rem;
}
.jwst-findings {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}
.jwst-find {
  padding: 1rem 1.1rem;
  background: linear-gradient(180deg, rgba(199, 125, 255, 0.05) 0%, transparent 50%), var(--bg-card);
  border: 1px solid rgba(199, 125, 255, 0.2);
  border-radius: 8px;
}
.jwst-find-date {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #c77dff;
}
.jwst-find-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1.2;
  margin: 0.3rem 0 0.4rem;
}
.jwst-find-desc {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.82rem;
  line-height: 1.45;
  color: var(--text-soft);
}

.dark-pullquote {
  margin: 2rem auto 1rem;
  max-width: 760px;
  padding: 1.5rem 2rem 0;
  text-align: center;
  border-top: 1px solid var(--line-soft);
}
.dark-pullquote blockquote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.3rem;
  line-height: 1.4;
  color: var(--text-bright);
  margin: 0 0 0.6rem;
  padding: 0;
}
.dark-pullquote blockquote::before,
.dark-pullquote blockquote::after {
  color: #c77dff;
  font-style: normal;
  margin: 0 0.15em;
}
.dark-pullquote blockquote::before { content: '"'; }
.dark-pullquote blockquote::after  { content: '"'; }
.dark-pullquote cite {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.58rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
}

@media (max-width: 900px) {
  .dark-comp-row { grid-template-columns: 1fr; gap: 1.5rem; padding: 1.5rem 1rem; }
  .dark-donut { max-width: 280px; margin: 0 auto; }
  .tension-bar { grid-template-columns: 1fr; gap: 0.8rem; }
}
@media (max-width: 768px) {
  .dark-hero { height: 280px; }
  .dark-hero-overlay { padding: 1.3rem; }
  .dark-hero-overlay .bh-title { font-size: 1.7rem; }
  .dark-hero-overlay .bh-sub { font-size: 0.6rem; letter-spacing: 0.15em; }
  .dark-tension { padding: 1.2rem 1rem; }
  .dark-candidates { padding: 1rem; grid-template-columns: 1fr; }
  .dark-jwst { padding: 1.2rem 1rem; }
  .jwst-findings { grid-template-columns: 1fr; }
  .dark-pullquote { padding: 1.2rem 1rem 0; }
  .dark-pullquote blockquote { font-size: 1.05rem; }
}

/* ============================================================
   LIVING MATTER — Phase 17 · CHNOPS, amino acids, ATP
   The bridge from elements to life
   ============================================================ */
.life-section {
  position: relative;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 0 2rem;
}
.life-hero {
  position: relative;
  height: 360px;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
}
.life-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 50%, rgba(124, 179, 66, 0.12) 0%, transparent 65%),
    radial-gradient(ellipse 40% 30% at 25% 30%, rgba(201, 169, 97, 0.08) 0%, transparent 60%),
    var(--bg-deep);
}
.life-hero[data-img="true"]::before {
  background-image: url('timeline/life-hero.webp?v=20260517uu');
  background-size: cover;
  background-position: center;
  filter: brightness(0.7) saturate(1.1);
}
.life-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 7, 15, 0.5) 0%, rgba(7, 7, 15, 0.55) 60%, var(--bg-deep) 100%);
}
.life-hero-overlay {
  position: relative;
  z-index: 3;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  text-align: center;
}
.life-hero-overlay .bh-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: #7cb342;
  margin-bottom: 0.4rem;
}
.life-hero-overlay .bh-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 2.4rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1.05;
  margin-bottom: 0.6rem;
  max-width: 820px;
}
.life-hero-overlay .bh-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  max-width: 660px;
  line-height: 1.5;
}

/* CHNOPS bridge row */
.life-chnops {
  padding: 2rem;
  max-width: 1300px;
  margin: 0 auto;
}
.life-chnops-head {
  margin-bottom: 1.5rem;
}
.life-chnops-head h2 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.7rem;
  color: var(--text-bright);
  line-height: 1.15;
  margin-bottom: 0.3rem;
}
.life-chnops-head .sub {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #7cb342;
}
.life-chnops-head p {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1rem;
  line-height: 1.55;
  color: var(--text-soft);
  margin-top: 0.7rem;
  max-width: 780px;
}

.chnops-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 1rem;
}
.chnops-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  padding: 1.2rem 1.1rem 1rem;
  transition: all 0.22s;
  --chn-color: #c9a961;
}
.chnops-card[data-key="C"] { --chn-color: #c77dff; }
.chnops-card[data-key="H"] { --chn-color: #4a9eff; }
.chnops-card[data-key="N"] { --chn-color: #ff5e3a; }
.chnops-card[data-key="O"] { --chn-color: #4a9eff; }
.chnops-card[data-key="P"] { --chn-color: #ffd166; }
.chnops-card[data-key="S"] { --chn-color: #7cb342; }
.chnops-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--chn-color);
  border-radius: 10px 10px 0 0;
}
.chnops-card:hover {
  border-color: var(--chn-color);
  transform: translateY(-3px);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.4);
}
.chnops-glyph {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin-bottom: 0.7rem;
}
.chnops-sym {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 2.5rem;
  font-weight: 500;
  color: var(--chn-color);
  line-height: 0.9;
  text-shadow: 0 0 18px color-mix(in srgb, var(--chn-color) 35%, transparent);
}
.chnops-meta {
  display: flex;
  flex-direction: column;
  gap: 0.05rem;
}
.chnops-z {
  font-family: var(--font-mono);
  font-size: 0.5rem;
  letter-spacing: 0.18em;
  color: var(--text-dim);
}
.chnops-name {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.9rem;
  color: var(--text-soft);
}
.chnops-pct {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.6rem;
  color: var(--text-bright);
  font-weight: 500;
  line-height: 1;
}
.chnops-pct small {
  font-size: 0.45em;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  font-family: var(--font-mono);
  font-style: normal;
  margin-left: 0.2em;
}
.chnops-role-label {
  font-family: var(--font-mono);
  font-size: 0.5rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--chn-color);
  margin: 0.5rem 0 0.2rem;
}
.chnops-role {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.82rem;
  line-height: 1.45;
  color: var(--text-soft);
  margin-bottom: 0.5rem;
}
.chnops-origin {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding-top: 0.5rem;
  border-top: 1px solid var(--line-soft);
}

/* Amino acids grid */
.life-aminos {
  padding: 1.5rem 2rem;
  max-width: 1300px;
  margin: 0 auto;
  border-top: 1px solid var(--line-soft);
}
.life-aminos-head {
  margin-bottom: 1rem;
}
.life-aminos-head h2 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.5rem;
  color: var(--text-bright);
  margin-bottom: 0.3rem;
}
.life-aminos-head .sub {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #c9a961;
  margin-bottom: 0.6rem;
}
.life-aminos-head p {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--text-soft);
  max-width: 800px;
}
.aminos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 0.5rem;
  margin-top: 1rem;
}
.amino-cell {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  padding: 0.55rem 0.6rem 0.6rem;
  cursor: pointer;
  transition: all 0.18s;
  --amino-color: #c9a961;
}
.amino-cell[data-class="nonpolar"] { --amino-color: #c9a961; }
.amino-cell[data-class="polar"]    { --amino-color: #4a9eff; }
.amino-cell[data-class="acidic"]   { --amino-color: #ff5e3a; }
.amino-cell[data-class="basic"]    { --amino-color: #c77dff; }
.amino-cell[data-class="special"]  { --amino-color: #7cb342; }
.amino-cell::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--amino-color);
  border-radius: 6px 6px 0 0;
}
.amino-cell:hover {
  border-color: var(--amino-color);
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.32);
}
.amino-cell .a-code {
  font-family: var(--font-mono);
  font-size: 0.52rem;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  text-transform: uppercase;
}
.amino-cell .a-letter {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--amino-color);
  line-height: 1;
  text-shadow: 0 0 12px color-mix(in srgb, var(--amino-color) 30%, transparent);
}
.amino-cell .a-name {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.72rem;
  color: var(--text-soft);
  line-height: 1.15;
  margin-top: 0.15rem;
}
.amino-cell .a-ess {
  position: absolute;
  top: 6px;
  right: 6px;
  font-family: var(--font-mono);
  font-size: 0.5rem;
  color: var(--accent-gold);
  letter-spacing: 0.1em;
  opacity: 0.9;
}
.aminos-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin-top: 1rem;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.aminos-legend > span {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-muted);
}
.aminos-legend i {
  width: 10px; height: 10px; border-radius: 2px; display: inline-block;
}

/* ATP visualization */
.life-atp {
  padding: 1.5rem 2rem;
  max-width: 1300px;
  margin: 0 auto;
  border-top: 1px solid var(--line-soft);
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 2rem;
  align-items: center;
}
.atp-svg {
  width: 100%;
  max-width: 460px;
  height: auto;
}
.life-atp-text h2 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.6rem;
  color: var(--text-bright);
  margin-bottom: 0.3rem;
}
.life-atp-text .sub {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #ffd166;
  margin-bottom: 0.8rem;
}
.life-atp-text p {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--text-soft);
  margin: 0 0 0.8rem 0;
}
.atp-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 0.7rem;
  margin-top: 1rem;
}
.atp-stat {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  padding: 0.7rem 0.8rem;
  border-left: 2px solid #ffd166;
}
.atp-stat-num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.3rem;
  color: var(--text-bright);
  line-height: 1;
}
.atp-stat-num small {
  font-size: 0.55em;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  font-family: var(--font-mono);
  font-style: normal;
  margin-left: 0.15em;
}
.atp-stat-label {
  font-family: var(--font-mono);
  font-size: 0.52rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 0.3rem;
}

/* Cosmic origin findings */
.life-cosmic {
  padding: 1.5rem 2rem;
  max-width: 1300px;
  margin: 0 auto;
  border-top: 1px solid var(--line-soft);
}
.life-cosmic h2 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.5rem;
  color: var(--text-bright);
  margin-bottom: 0.3rem;
}
.life-cosmic .sub {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #c77dff;
  margin-bottom: 1rem;
}
.cosmic-findings {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}
.cosmic-find {
  padding: 1.1rem 1.2rem 1rem;
  background: linear-gradient(180deg, rgba(199, 125, 255, 0.06) 0%, transparent 60%), var(--bg-card);
  border: 1px solid rgba(199, 125, 255, 0.22);
  border-radius: 8px;
}
.cosmic-find-date {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #c77dff;
}
.cosmic-find-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1.2;
  margin: 0.3rem 0 0.45rem;
}
.cosmic-find-desc {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.83rem;
  line-height: 1.45;
  color: var(--text-soft);
}

.life-pullquote {
  margin: 1.8rem auto 1rem;
  max-width: 780px;
  padding: 1.5rem 2rem 0;
  text-align: center;
  border-top: 1px solid var(--line-soft);
}
.life-pullquote blockquote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.3rem;
  line-height: 1.4;
  color: var(--text-bright);
  margin: 0 0 0.6rem;
  padding: 0;
}
.life-pullquote blockquote::before,
.life-pullquote blockquote::after {
  color: #7cb342;
  font-style: normal;
  margin: 0 0.15em;
}
.life-pullquote blockquote::before { content: '"'; }
.life-pullquote blockquote::after  { content: '"'; }
.life-pullquote cite {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.58rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
}

@media (max-width: 900px) {
  .life-atp { grid-template-columns: 1fr; gap: 1.2rem; }
  .atp-svg { margin: 0 auto; }
}
@media (max-width: 768px) {
  .life-hero { height: 280px; }
  .life-hero-overlay { padding: 1.3rem; }
  .life-hero-overlay .bh-title { font-size: 1.7rem; }
  .life-hero-overlay .bh-sub { font-size: 0.6rem; letter-spacing: 0.15em; }
  .life-chnops { padding: 1.2rem 1rem; }
  .chnops-grid { grid-template-columns: 1fr 1fr; gap: 0.6rem; }
  .life-aminos { padding: 1.2rem 1rem; }
  .aminos-grid { grid-template-columns: repeat(auto-fill, minmax(90px, 1fr)); }
  .life-atp { padding: 1.2rem 1rem; }
  .life-cosmic { padding: 1.2rem 1rem; }
  .life-pullquote { padding: 1.2rem 1rem 0; }
  .life-pullquote blockquote { font-size: 1.05rem; }
}

/* ============================================================
   SPRINT 1 — UX FOUNDATION
   Sticky Module-Nav · Command Palette · Progress Rail
   Reading Times · Bookmarks
   ============================================================ */

/* Module-Nav - sticky bar that appears after scroll */
.module-nav {
  position: fixed;
  top: -56px;
  left: 0;
  right: 0;
  height: 48px;
  background: rgba(10, 10, 15, 0.92);
  backdrop-filter: blur(14px) saturate(1.1);
  -webkit-backdrop-filter: blur(14px) saturate(1.1);
  border-bottom: 1px solid var(--line-soft);
  z-index: 110;
  transition: top 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.module-nav.visible { top: 0; }

.module-nav-inner {
  max-width: 1400px;
  margin: 0 auto;
  height: 100%;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.2rem;
}
.module-nav-sigil {
  font-size: 1.1rem;
  color: var(--accent-gold);
  font-weight: 400;
}
.module-nav-current {
  flex: 1;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--text-bright);
  line-height: 1;
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.module-nav-current .mnc-num {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.55rem;
  letter-spacing: 0.25em;
  color: var(--text-dim);
  text-transform: uppercase;
}
.module-nav-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.module-nav-btn {
  background: transparent;
  border: 1px solid var(--line-soft);
  color: var(--text-muted);
  width: 32px;
  height: 32px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  transition: all 0.15s;
}
.module-nav-btn:hover {
  background: rgba(201, 169, 97, 0.08);
  color: var(--text-bright);
  border-color: var(--accent-gold);
}
.module-nav-btn kbd {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  background: transparent;
}
.module-nav-btn.bookmarked { color: var(--accent-gold); border-color: var(--accent-gold); }

@media (max-width: 720px) {
  .module-nav { height: 44px; }
  .module-nav-inner { padding: 0 0.9rem; gap: 0.6rem; }
  .module-nav-current { font-size: 0.85rem; }
  .module-nav-current .mnc-num { display: none; }
  .module-nav-btn { width: 30px; height: 30px; }
  .module-nav-btn kbd { font-size: 0.55rem; }
}

/* Progress Rail - vertical right side */
.progress-rail {
  position: fixed;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 0.8rem 0.4rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s;
}
.progress-rail.visible { opacity: 1; pointer-events: auto; }

.prog-dot {
  --dot-hue: 0;                                    /* set inline by JS per section */
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: hsl(var(--dot-hue), 78%, 58%);
  cursor: pointer;
  position: relative;
  transition:
    transform 0.28s cubic-bezier(0.34, 1.56, 0.5, 1),
    box-shadow 0.28s ease;
  box-shadow:
    0 0 0 1px hsla(var(--dot-hue), 95%, 75%, 0.35),
    0 0 8px hsla(var(--dot-hue), 90%, 60%, 0.55);
}
.prog-dot::after {
  content: attr(data-title);
  position: absolute;
  right: calc(100% + 14px);
  top: 50%;
  transform: translateY(-50%) translateX(4px);
  background: rgba(10, 10, 15, 0.94);
  border: 1px solid hsla(var(--dot-hue), 70%, 60%, 0.6);
  padding: 0.32rem 0.7rem;
  border-radius: 5px;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: hsl(var(--dot-hue), 30%, 88%);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s, transform 0.22s;
}
.prog-dot:hover::after { opacity: 1; transform: translateY(-50%) translateX(0); }
.prog-dot:hover {
  transform: scale(1.5);
  box-shadow:
    0 0 0 1.5px hsl(var(--dot-hue), 95%, 75%),
    0 0 18px hsla(var(--dot-hue), 95%, 65%, 0.85),
    0 0 30px hsla(var(--dot-hue), 100%, 55%, 0.4);
}
.prog-dot.active {
  background: hsl(var(--dot-hue), 90%, 65%);
  transform: scale(1.7);
  box-shadow:
    0 0 0 2px var(--accent-gold),
    0 0 16px hsla(var(--dot-hue), 100%, 65%, 0.95),
    0 0 32px hsla(var(--dot-hue), 100%, 55%, 0.5);
}
.prog-dot.bookmarked::before {
  content: '';
  position: absolute;
  top: -4px; left: -4px; right: -4px; bottom: -4px;
  border: 1.5px dashed var(--accent-gold);
  border-radius: 50%;
  opacity: 0.7;
  animation: prog-dot-bm-spin 14s linear infinite;
}
@keyframes prog-dot-bm-spin {
  to { transform: rotate(360deg); }
}
/* "wow" — section has narrator audio — gets a slow halo pulse for at-a-glance audio map. */
.prog-dot.wow {
  animation: prog-dot-wow-pulse 2.6s ease-in-out infinite;
}
@keyframes prog-dot-wow-pulse {
  0%, 100% {
    box-shadow:
      0 0 0 1px hsla(var(--dot-hue), 95%, 75%, 0.35),
      0 0 8px hsla(var(--dot-hue), 90%, 60%, 0.55);
  }
  50% {
    box-shadow:
      0 0 0 1.5px hsla(var(--dot-hue), 95%, 80%, 0.55),
      0 0 14px hsla(var(--dot-hue), 95%, 65%, 0.9);
  }
}
.prog-dot.wow.active {
  animation: none;          /* let .active static glow take over */
}

@media (max-width: 920px) {
  .progress-rail { display: none; }
}

/* ============================================================
   SECTION REVEAL — entry fade + off-screen animation gate
   Sections start at 0.15 opacity + 32px translate-down,
   ease into 1 / 0 when they hit the viewport. Once revealed
   they stay visible. Off-screen sections also pause their
   animations (eyebrow pulse, gradients) so 22 sections aren't
   all painting at once — significant frame-budget reclaim.
   ============================================================ */
section[id] {
  opacity: 0.12;
  transform: translateY(32px);
  transition:
    opacity 0.85s cubic-bezier(0.32, 1.18, 0.4, 1),
    transform 0.85s cubic-bezier(0.32, 1.18, 0.4, 1);
}
section[id].in-view,
section[id].revealed {
  opacity: 1;
  transform: translateY(0);
}
/* Pause animations on sections that aren't actively in the viewport.
   Once a section is revealed it stays opaque, but we still pause its
   ongoing CSS animations (eyebrow pulse, wow ring etc.) when scrolled
   off — so the GPU isn't repainting 22 chromatic loops every frame. */
section[id]:not(.in-view) [class$="-eyebrow"]::before,
section[id]:not(.in-view) .eyebrow::before {
  animation-play-state: paused;
}

/* Stagger the rail dot wow-pulses so they don't all blink at once.
   Each n-th dot gets a slightly different animation-delay; visual
   variety + reduced simultaneous repaints. */
.prog-dot.wow:nth-child(7n+1) { animation-delay: 0s; }
.prog-dot.wow:nth-child(7n+2) { animation-delay: -0.4s; }
.prog-dot.wow:nth-child(7n+3) { animation-delay: -0.8s; }
.prog-dot.wow:nth-child(7n+4) { animation-delay: -1.2s; }
.prog-dot.wow:nth-child(7n+5) { animation-delay: -1.6s; }
.prog-dot.wow:nth-child(7n+6) { animation-delay: -2.0s; }
.prog-dot.wow:nth-child(7n+7) { animation-delay: -2.4s; }


   Every <section> with data-section-color gets its hue exposed
   via --section-hue, set by ProgressRail.applySectionHues().
   This rule paints a small colored dot before every eyebrow
   inside it — so each section is visually differentiable
   without overwhelming the dark luxe brand language.
   ============================================================ */
section[data-section-color] [class$="-eyebrow"]::before,
section[data-section-color] [class*="-eyebrow "]::before,
section[data-section-color] > .eyebrow::before,
section[data-section-color] .eyebrow::before {
  content: '';
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: hsl(var(--section-hue), 88%, 62%);
  margin-right: 0.7rem;
  vertical-align: 0.08em;
  box-shadow:
    0 0 0 1.5px hsla(var(--section-hue), 90%, 75%, 0.4),
    0 0 12px hsla(var(--section-hue), 90%, 62%, 0.7);
  transition: transform 0.3s, box-shadow 0.3s;
  animation: section-eyebrow-pulse 3.4s ease-in-out infinite;
}
@keyframes section-eyebrow-pulse {
  0%, 100% { box-shadow: 0 0 0 1.5px hsla(var(--section-hue), 90%, 75%, 0.4), 0 0 12px hsla(var(--section-hue), 90%, 62%, 0.7); }
  50%      { box-shadow: 0 0 0 2px hsla(var(--section-hue), 95%, 85%, 0.6),    0 0 22px hsla(var(--section-hue), 100%, 65%, 0.95); }
}
section[data-section-color]:hover [class$="-eyebrow"]::before,
section[data-section-color]:hover [class*="-eyebrow "]::before,
section[data-section-color]:hover > .eyebrow::before,
section[data-section-color]:hover .eyebrow::before {
  transform: scale(1.25);
}

/* Section top-edge hue line — a 2px chromatic bar at the very top
   of each section announces its place in the rainbow cycle.
   Subtle but always-present, building anticipation as you scroll. */
section[data-section-color] {
  position: relative;
}
section[data-section-color]::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg,
    transparent 0%,
    hsl(var(--section-hue), 80%, 55%) 20%,
    hsl(var(--section-hue), 90%, 70%) 50%,
    hsl(var(--section-hue), 80%, 55%) 80%,
    transparent 100%);
  opacity: 0.4;
  pointer-events: none;
  z-index: 5;
}

/* The companion-panel eyebrow lives outside any section — DO NOT tint it. */
.tutor-drawer [class$="-eyebrow"]::before,
.tutor-drawer [class*="-eyebrow "]::before { display: none; }

/* Global safety - ensure HTML hidden attribute always wins */
[hidden] { display: none !important; }

/* Command Palette */
.cmdp-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(7, 7, 15, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 200;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding-top: 12vh;
}
.cmdp-backdrop.open {
  display: flex;
  animation: cmdp-fade-in 0.18s ease;
}
@keyframes cmdp-fade-in { from { opacity: 0; } to { opacity: 1; } }

.cmdp {
  width: min(620px, calc(100vw - 2rem));
  max-height: 70vh;
  background: var(--bg-card);
  border: 1px solid var(--line-mid);
  border-radius: 10px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.6), 0 0 1px var(--accent-gold);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.cmdp-search-row {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1rem 1.2rem;
  border-bottom: 1px solid var(--line-soft);
}
.cmdp-search-icon {
  font-family: var(--font-mono);
  color: var(--accent-gold);
  font-size: 0.9rem;
}
.cmdp-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-bright);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.1rem;
}
.cmdp-input::placeholder { color: var(--text-dim); font-style: italic; }
.cmdp-esc {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--line-soft);
  border-radius: 4px;
}
.cmdp-results {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem 0;
  scrollbar-width: thin;
  scrollbar-color: var(--line-mid) transparent;
}
.cmdp-group-label {
  font-family: var(--font-mono);
  font-size: 0.5rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 0.5rem 1.2rem 0.3rem;
}
.cmdp-result {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  width: 100%;
  background: transparent;
  border: none;
  text-align: left;
  padding: 0.6rem 1.2rem;
  cursor: pointer;
  color: var(--text-soft);
  transition: background 0.1s;
  font-family: inherit;
}
.cmdp-result:hover, .cmdp-result.selected {
  background: rgba(201, 169, 97, 0.06);
  color: var(--text-bright);
}
.cmdp-result-icon {
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-soft);
  border-radius: 4px;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--accent-gold);
  flex-shrink: 0;
}
.cmdp-result-title {
  flex: 1;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.95rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.cmdp-result-meta {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.cmdp-hint {
  padding: 0.6rem 1.2rem;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  display: flex;
  justify-content: space-between;
}
.cmdp-empty {
  padding: 2rem 1.2rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
}

/* Reading Time tag, fits inside hero eyebrow rows */
.reading-time-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-family: var(--font-mono);
  font-size: 0.52rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  margin-left: 0.6rem;
  vertical-align: middle;
}
.reading-time-tag::before {
  content: '◷';
  font-size: 0.7rem;
  color: var(--accent-gold);
}

/* Section Bookmark Button - floating in hero corners */
.section-bookmark {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 5;
  background: rgba(10, 10, 15, 0.6);
  backdrop-filter: blur(6px);
  border: 1px solid var(--line-soft);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 1rem;
  transition: all 0.18s;
}
.section-bookmark:hover { color: var(--accent-gold); border-color: var(--accent-gold); }
.section-bookmark.bookmarked {
  color: var(--accent-gold);
  border-color: var(--accent-gold);
  background: rgba(201, 169, 97, 0.1);
}
.section-bookmark.bookmarked::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 1px solid var(--accent-gold);
  opacity: 0.3;
}

/* ============================================================
   SPRINT 3 — AI ELEMENT TUTOR
   Chat-Drawer · configurable endpoint with mock fallback
   ============================================================ */
/* ============================================================
   COMPANION PANEL — floating compact chat overlay
   Combines voice-avatar + chat-stream + input into a single
   bottom-right panel that does not occlude the periodic table.
   Glass / dark-luxe aesthetic; gold halo when the agent is live.
   ============================================================ */
.tutor-backdrop {
  position: fixed;
  inset: 0;
  background: transparent;             /* no full-screen dim — panel is small */
  z-index: 150;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
}
.tutor-backdrop.open { opacity: 1; }   /* still useful for ESC capture / focus */

.tutor-drawer {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  width: min(380px, calc(100vw - 2.5rem));
  height: min(560px, calc(100vh - 2.5rem));
  background:
    radial-gradient(circle at 20% 0%, rgba(201, 169, 97, 0.06), transparent 55%),
    linear-gradient(160deg, rgba(15, 15, 22, 0.94), rgba(7, 7, 15, 0.97));
  border: 1px solid rgba(201, 169, 97, 0.18);
  border-radius: 18px;
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  z-index: 151;
  display: flex;
  flex-direction: column;
  transform-origin: bottom right;
  transform: translateY(16px) scale(0.96);
  opacity: 0;
  pointer-events: none;
  transition:
    transform 0.4s cubic-bezier(0.32, 1.4, 0.5, 1),
    opacity 0.28s ease;
  box-shadow:
    0 30px 60px -20px rgba(0, 0, 0, 0.65),
    0 0 0 1px rgba(201, 169, 97, 0.04),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
  overflow: hidden;
}
.tutor-drawer.open {
  transform: translateY(0) scale(1);
  opacity: 1;
  pointer-events: auto;
}

/* ──────────────────────────────────────────────────────────────
   Cross-fade between bottom pill-player and tutor-mini-avatar.
   Rule: while the chatbox is open, ONLY ONE avatar is visible.
     · Default (tutor open, no recent scroll):
         mini-avatar in header   = visible
         bottom pill-player      = hidden
     · After user scrolls the periodic table (within 5 s window):
         mini-avatar in header   = fades out
         bottom pill-player      = fades in
     · 5 s after last scroll: returns to default.
   ────────────────────────────────────────────────────────────── */
body.tutor-open #narr-player {
  opacity: 0 !important;
  pointer-events: none;
  transform: translate(-50%, 24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
body.tutor-open .tutor-mini-avatar {
  opacity: 1;
  transition: opacity 0.45s ease;
}

/* Recent scroll → swap: bottom pill returns, mini-avatar fades */
body.tutor-open.scroll-recent #narr-player {
  opacity: 1 !important;
  pointer-events: auto;
  transform: translate(-50%, 0);
}
body.tutor-open.scroll-recent .tutor-mini-avatar {
  opacity: 0;
  pointer-events: none;
}

.tutor-header {
  padding: 1rem 1rem 0.5rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  position: relative;
}

/* Mini avatar — embedded sprite that mirrors ModeratorSprite state.
   Doubles as voice-call toggle on click. */
.tutor-mini-avatar {
  position: relative;
  width: 56px;
  height: 56px;
  flex-shrink: 0;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 25%, rgba(201, 169, 97, 0.18), rgba(7, 7, 15, 0.4) 70%);
  border: 1px solid rgba(201, 169, 97, 0.25);
  cursor: pointer;
  padding: 0;
  transition:
    transform 0.22s ease,
    border-color 0.22s ease,
    box-shadow 0.22s ease,
    opacity 0.45s ease;
  overflow: hidden;                  /* clip sprite inside the circle */
  outline: none;
}
.tutor-mini-avatar:hover {
  transform: scale(1.05);
  border-color: var(--accent-gold);
  box-shadow: 0 0 18px rgba(201, 169, 97, 0.35);
}
.tutor-mini-avatar:focus-visible {
  box-shadow: 0 0 0 2px rgba(201, 169, 97, 0.6);
}

/* Live halo — box-shadow based so it extends outside without
   needing overflow: visible (which would let the sprite escape too). */
.tutor-mini-avatar.live {
  border-color: var(--accent-gold);
  animation: tutor-avatar-pulse 1.9s ease-in-out infinite;
}
@keyframes tutor-avatar-pulse {
  0%, 100% {
    box-shadow:
      0 0 0 2px rgba(201, 169, 97, 0.65),
      0 0 22px 4px rgba(201, 169, 97, 0.30);
  }
  50% {
    box-shadow:
      0 0 0 3px rgba(201, 169, 97, 0.18),
      0 0 32px 10px rgba(201, 169, 97, 0.55);
  }
}

.narr-mod-sprite.tutor-mini-sprite {
  position: absolute;
  inset: 4px;
  width: 48px;
  height: 48px;
  background-image: url('moderator-sprite.webp?v=20260517uu');
  background-size: 144px 144px;
  background-position: 0 0;
  background-repeat: no-repeat;
  border-radius: 50%;
  transition: opacity 0.3s;
  transform: translateZ(0);
  backface-visibility: hidden;
  will-change: background-position;
}
.narr-mod-sprite.tutor-mini-sprite.state-idle      { background-position:    0    0; }
.narr-mod-sprite.tutor-mini-sprite.state-blink-1   { background-position: -48px   0; }
.narr-mod-sprite.tutor-mini-sprite.state-blink-2   { background-position: -96px   0; }
.narr-mod-sprite.tutor-mini-sprite.state-mouth-1   { background-position:    0 -48px; }
.narr-mod-sprite.tutor-mini-sprite.state-mouth-2   { background-position: -48px -48px; }
.narr-mod-sprite.tutor-mini-sprite.state-mouth-3   { background-position: -96px -48px; }
.narr-mod-sprite.tutor-mini-sprite.state-thinking  { background-position:    0 -96px; }
.narr-mod-sprite.tutor-mini-sprite.state-smile     { background-position: -48px -96px; }
.narr-mod-sprite.tutor-mini-sprite.state-ended     { background-position: -96px -96px; opacity: 0.7; }

.tutor-header-text { flex: 1; min-width: 0; }
.tutor-header-text .th-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.15rem;
}
.tutor-header-text .th-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.2rem;
  color: var(--text-bright);
  line-height: 1;
}

.tutor-close {
  background: transparent;
  border: 1px solid var(--line-soft);
  color: var(--text-muted);
  width: 30px;
  height: 30px;
  border-radius: 8px;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s;
}
.tutor-close:hover { color: var(--text-bright); border-color: var(--accent-gold); }

/* Live status hairline — between header and chat scroll.
   Shows ConvAgent state (idle/listening/speaking/thinking). */
.tutor-live-strip {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 1rem 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  transition: color 0.3s, background 0.3s;
}
.tutor-live-strip .tls-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  transition: background 0.3s, box-shadow 0.3s;
  flex-shrink: 0;
}
.tutor-live-strip.state-connecting .tls-dot,
.tutor-live-strip.state-thinking   .tls-dot {
  background: var(--accent-gold);
  opacity: 0.55;
  animation: tls-pulse 1.1s ease-in-out infinite;
}
.tutor-live-strip.state-connected .tls-dot,
.tutor-live-strip.state-listening .tls-dot {
  background: var(--accent-gold);
  box-shadow: 0 0 8px rgba(201, 169, 97, 0.7);
}
.tutor-live-strip.state-speaking .tls-dot {
  background: #f3d27a;
  box-shadow: 0 0 12px rgba(243, 210, 122, 0.85);
  animation: tls-pulse 0.55s ease-in-out infinite;
}
.tutor-live-strip.state-listening,
.tutor-live-strip.state-speaking,
.tutor-live-strip.state-connected,
.tutor-live-strip.state-thinking,
.tutor-live-strip.state-connecting {
  color: var(--text-bright);
}
@keyframes tls-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.5; transform: scale(1.4); }
}

.tutor-messages {
  flex: 1;
  overflow-y: auto;
  padding: 0.85rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  scrollbar-width: thin;
  scrollbar-color: var(--line-mid) transparent;
}
.tutor-msg {
  max-width: 90%;
  padding: 0.7rem 0.9rem;
  border-radius: 8px;
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--text-soft);
}
.tutor-msg.user {
  align-self: flex-end;
  background: rgba(201, 169, 97, 0.08);
  border: 1px solid rgba(201, 169, 97, 0.2);
  font-family: var(--font-display);
  font-style: italic;
}
.tutor-msg.assistant {
  align-self: flex-start;
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--accent-gold);
  font-family: var(--font-sans, system-ui), sans-serif;
}
.tutor-msg.system {
  align-self: center;
  background: transparent;
  border: 1px dashed var(--line-soft);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  color: var(--text-dim);
  padding: 0.5rem 0.9rem;
}
.tutor-msg-typing {
  align-self: flex-start;
  display: inline-flex;
  gap: 0.3rem;
  padding: 0.7rem 0.9rem;
}
.tutor-msg-typing span {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent-gold);
  animation: tutor-pulse 1.2s infinite;
}
.tutor-msg-typing span:nth-child(2) { animation-delay: 0.2s; }
.tutor-msg-typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes tutor-pulse {
  0%, 100% { opacity: 0.3; transform: scale(0.8); }
  50% { opacity: 1; transform: scale(1); }
}
@media (prefers-reduced-motion: reduce) {
  .tutor-msg-typing span { animation: none; opacity: 0.7; }
}

.tutor-suggestions {
  padding: 0 1.3rem 0.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.tutor-suggestion {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  color: var(--text-soft);
  padding: 0.4rem 0.65rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.15s;
}
.tutor-suggestion:hover {
  border-color: var(--accent-gold);
  color: var(--text-bright);
}

.tutor-input-row {
  padding: 0.7rem 0.85rem 0.85rem;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  display: flex;
  gap: 0.5rem;
  align-items: flex-end;
}
.tutor-input {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  padding: 0.6rem 0.8rem;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.9rem;
  color: var(--text-bright);
  resize: none;
  min-height: 40px;
  max-height: 120px;
  outline: none;
  transition: border-color 0.15s;
}
.tutor-input:focus { border-color: var(--accent-gold); }
.tutor-input::placeholder { color: var(--text-dim); font-style: italic; }
.tutor-send {
  background: var(--accent-gold);
  border: none;
  color: var(--bg-deep);
  padding: 0 1rem;
  height: 40px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.15s;
}
.tutor-send:hover { background: #d4b870; }
.tutor-send:disabled { opacity: 0.4; cursor: not-allowed; }

/* Voice-input mic button — Web Speech API trigger.
   Shown only when SpeechRecognition is available (JS removes [hidden]). */
.tutor-mic {
  background: transparent;
  border: 1px solid var(--line-soft);
  color: var(--text-muted);
  width: 40px; height: 40px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  padding: 0;
  flex-shrink: 0;
}
.tutor-mic svg { width: 18px; height: 18px; fill: currentColor; }
.tutor-mic:hover {
  color: var(--text-bright);
  border-color: var(--accent-gold);
}
.tutor-mic.listening {
  background: rgba(201, 169, 97, 0.15);
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  animation: tutor-mic-pulse 1.4s ease-in-out infinite;
}
@keyframes tutor-mic-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(201, 169, 97, 0.5); }
  50%      { box-shadow: 0 0 0 8px rgba(201, 169, 97, 0); }
}
.tutor-mic[hidden] { display: none !important; }

/* Voice-call button — opens an ElevenLabs Conversational AI session.
   Idle: gold phone icon. Live: pulsing red end-call icon. */
.tutor-voice-call {
  background: rgba(201, 169, 97, 0.10);
  border: 1px solid var(--accent-gold);
  color: var(--accent-gold);
  width: 40px; height: 40px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  padding: 0;
  flex-shrink: 0;
  position: relative;
}
.tutor-voice-call svg { width: 18px; height: 18px; fill: currentColor; }
.tutor-voice-call .vc-end { display: none; }
.tutor-voice-call:hover {
  background: rgba(201, 169, 97, 0.18);
  box-shadow: 0 0 14px rgba(201, 169, 97, 0.32);
}
.tutor-voice-call.connecting {
  animation: tutor-vc-pulse 1.4s ease-in-out infinite;
}
.tutor-voice-call.live {
  background: rgba(255, 60, 60, 0.14);
  border-color: #ff5e3a;
  color: #ff5e3a;
  animation: tutor-vc-live 2s ease-in-out infinite;
}
.tutor-voice-call.live .vc-phone { display: none; }
.tutor-voice-call.live .vc-end { display: block; }
@keyframes tutor-vc-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(201, 169, 97, 0.5); }
  50%      { box-shadow: 0 0 0 10px rgba(201, 169, 97, 0); }
}
@keyframes tutor-vc-live {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 94, 58, 0.5); }
  50%      { box-shadow: 0 0 0 12px rgba(255, 94, 58, 0); }
}

/* Cache status badge — shows number of cached voices in IDB.
   Click to clear cache after confirm. Only shown when count > 0. */
.tutor-cache-badge {
  background: transparent;
  border: 1px solid var(--line-soft);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  padding: 0.25rem 0.55rem 0.25rem 0.4rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  cursor: pointer;
  transition: all 0.2s;
}
.tutor-cache-badge svg { width: 11px; height: 11px; fill: currentColor; opacity: 0.7; }
.tutor-cache-badge:hover {
  color: var(--accent-gold);
  border-color: var(--accent-gold);
}
.tutor-cache-badge[hidden] { display: none !important; }

.tutor-footer-meta {
  padding: 0.4rem 0.9rem;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  font-family: var(--font-mono);
  font-size: 0.5rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}
.tutor-status-dot {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--text-dim);
  margin-right: 0.3rem;
  vertical-align: middle;
}
.tutor-status-dot.live { background: #7cb342; box-shadow: 0 0 6px rgba(124, 179, 66, 0.5); }
.tutor-status-dot.mock { background: var(--accent-gold); }

@media (max-width: 480px) {
  .tutor-drawer {
    right: 0.6rem;
    bottom: 0.6rem;
    left: 0.6rem;
    width: auto;
    height: min(70vh, 540px);
    border-radius: 16px;
  }
  .tutor-header .th-title { font-size: 1.05rem; }
}

/* ============================================================
   AI REACTION LAB — Sprint 4 · Live molecular reactions
   Bottom-sheet drawer · click elements · AI synthesis
   ============================================================ */
.rxn-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(7, 7, 15, 0.55);
  backdrop-filter: blur(4px);
  z-index: 145;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
}
.rxn-backdrop.open { opacity: 1; pointer-events: auto; }

.rxn-sheet {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: min(72vh, 760px);
  background:
    radial-gradient(ellipse at 50% 0%, rgba(201, 169, 97, 0.05), transparent 50%),
    linear-gradient(180deg, rgba(15, 15, 22, 0.97), rgba(7, 7, 15, 0.99));
  border-top: 1px solid rgba(201, 169, 97, 0.22);
  z-index: 146;
  display: flex;
  flex-direction: column;
  transform: translateY(100%);
  transition: transform 0.42s cubic-bezier(0.34, 1.18, 0.5, 1);
  box-shadow:
    0 -28px 60px -16px rgba(0, 0, 0, 0.7),
    0 -1px 0 rgba(255, 255, 255, 0.04) inset;
  backdrop-filter: blur(10px) saturate(140%);
  -webkit-backdrop-filter: blur(10px) saturate(140%);
}
.rxn-sheet.open { transform: translateY(0); }

/* Chromatic accent strip — gradient bar along the top edge to signal
   the lab as a creative/experimental surface (distinct from chat). */
.rxn-sheet::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg,
    hsl(0, 65%, 55%)    0%,
    hsl(28, 70%, 55%)   16.6%,
    hsl(50, 70%, 55%)   33%,
    hsl(130, 55%, 50%)  50%,
    hsl(195, 65%, 55%)  66.6%,
    hsl(235, 60%, 60%)  83%,
    hsl(285, 60%, 60%)  100%);
  opacity: 0.55;
  pointer-events: none;
}

.rxn-header {
  padding: 1.1rem 1.5rem 0.85rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.rxn-header-text .rh-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent-gold);
}
.rxn-header-text .rh-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.32rem;
  color: var(--text-bright);
  line-height: 1;
  margin-top: 0.2rem;
}
.rxn-modes {
  display: flex;
  gap: 0;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(201, 169, 97, 0.15);
  border-radius: 7px;
  overflow: hidden;
}
.rxn-mode-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.55rem 1.05rem;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border-right: 1px solid rgba(255, 255, 255, 0.06);
  transition: background 0.2s, color 0.2s;
}
.rxn-mode-btn:last-child { border-right: none; }
.rxn-mode-btn:hover { color: var(--text-bright); background: rgba(201, 169, 97, 0.04); }
.rxn-mode-btn.active {
  background: rgba(201, 169, 97, 0.14);
  color: var(--accent-gold);
  box-shadow: inset 0 -2px 0 var(--accent-gold);
}
.rxn-close {
  background: transparent;
  border: 1px solid var(--line-soft);
  color: var(--text-muted);
  width: 32px;
  height: 32px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.rxn-close:hover { color: var(--text-bright); border-color: var(--accent-gold); }

.rxn-body {
  flex: 1;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr 1.4fr;
  gap: 0;
  overflow: hidden;
  min-height: 0;
}

.rxn-picker {
  border-right: 1px solid var(--line-soft);
  padding: 0.8rem 1rem;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--line-mid) transparent;
}
.rxn-panel-label {
  font-family: var(--font-mono);
  font-size: 0.52rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 0.5rem;
}
.rxn-picker-search {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: 4px;
  padding: 0.4rem 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-bright);
  outline: none;
  margin-bottom: 0.7rem;
}
.rxn-picker-search:focus { border-color: var(--accent-gold); }
.rxn-picker-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(48px, 1fr));
  gap: 4px;
}
.rxn-pe {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: 4px;
  padding: 0.4rem 0.2rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.12s;
}
.rxn-pe:hover {
  border-color: var(--accent-gold);
  background: rgba(201, 169, 97, 0.06);
  transform: translateY(-1px);
}
.rxn-pe.added {
  background: rgba(201, 169, 97, 0.15);
  border-color: var(--accent-gold);
}
.rxn-pe-z {
  font-family: var(--font-mono);
  font-size: 0.42rem;
  color: var(--text-dim);
  line-height: 1;
}
.rxn-pe-sym {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1rem;
  color: var(--text-bright);
  line-height: 1.1;
  margin-top: 0.1rem;
}

.rxn-stage {
  border-right: 1px solid var(--line-soft);
  padding: 0.8rem 1rem;
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.rxn-selected {
  flex: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-content: flex-start;
  padding: 0.6rem;
  background: var(--bg-card);
  border: 1px dashed var(--line-soft);
  border-radius: 6px;
  min-height: 120px;
  overflow-y: auto;
}
.rxn-selected.empty {
  align-content: center;
  justify-content: center;
}
.rxn-selected.empty::before {
  content: attr(data-placeholder);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.8rem;
  color: var(--text-dim);
  text-align: center;
  width: 100%;
}
.rxn-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(201, 169, 97, 0.1);
  border: 1px solid rgba(201, 169, 97, 0.4);
  border-radius: 999px;
  padding: 0.25rem 0.4rem 0.25rem 0.65rem;
  height: 32px;
}
.rxn-chip-sym {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1rem;
  color: var(--text-bright);
  font-weight: 500;
}
.rxn-chip-count {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  color: var(--accent-gold);
  letter-spacing: 0.1em;
}
.rxn-chip-x {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1rem;
  line-height: 0.8;
  padding: 0 0.15rem;
}
.rxn-chip-x:hover { color: var(--text-bright); }
.rxn-controls {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.7rem;
}
.rxn-clear {
  flex: 1;
  background: transparent;
  border: 1px solid var(--line-soft);
  color: var(--text-muted);
  padding: 0.6rem;
  border-radius: 6px;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.rxn-clear:hover { color: var(--text-bright); }
.rxn-go {
  flex: 1.4;
  background: var(--accent-gold);
  border: none;
  color: var(--bg-deep);
  padding: 0.6rem;
  border-radius: 6px;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 600;
  transition: background 0.15s;
}
.rxn-go:hover { background: #d4b870; }
.rxn-go:disabled {
  background: var(--line-mid);
  color: var(--text-dim);
  cursor: not-allowed;
}

.rxn-result {
  padding: 0.8rem 1.2rem 1rem;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--line-mid) transparent;
}
.rxn-result-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.85rem;
  color: var(--text-dim);
  padding: 1.5rem 0.5rem;
}
.rxn-result-empty .placeholder-sigil {
  font-size: 2rem;
  color: var(--accent-gold);
  opacity: 0.4;
  margin-bottom: 0.6rem;
}
.rxn-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 0.6rem;
}
.rxn-loading-dots {
  display: flex;
  gap: 0.4rem;
}
.rxn-loading-dots span {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent-gold);
  animation: rxn-pulse 1.2s infinite;
}
.rxn-loading-dots span:nth-child(2) { animation-delay: 0.2s; }
.rxn-loading-dots span:nth-child(3) { animation-delay: 0.4s; }
.rxn-loading-text {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}
@keyframes rxn-pulse {
  0%, 100% { opacity: 0.3; transform: scale(0.8); }
  50% { opacity: 1; transform: scale(1); }
}
@media (prefers-reduced-motion: reduce) {
  .rxn-loading-dots span { animation: none; opacity: 0.7; }
}
.rxn-result-equation {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.5rem;
  color: var(--text-bright);
  line-height: 1.3;
  padding: 0.8rem 1rem;
  background: linear-gradient(180deg, rgba(201, 169, 97, 0.08) 0%, transparent 80%), var(--bg-card);
  border: 1px solid rgba(201, 169, 97, 0.3);
  border-radius: 6px;
  margin-bottom: 1rem;
  text-align: center;
}
.rxn-result-section {
  margin-bottom: 0.9rem;
}
.rxn-result-section-label {
  font-family: var(--font-mono);
  font-size: 0.5rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.25rem;
}
.rxn-result-section-text {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--text-soft);
  white-space: pre-wrap;
}

/* Structured error result — replaces the generic "Something went wrong" */
.rxn-result-error {
  padding: 1.4rem;
  border: 1px solid color-mix(in oklab, #ff5e3a 30%, var(--line-mid));
  border-left: 3px solid #ff5e3a;
  background: color-mix(in oklab, #ff5e3a 5%, transparent);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.rxn-result-error .rxn-error-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.1rem;
  color: #ff5e3a;
}
.rxn-result-error .rxn-error-body {
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--text-soft);
}
.rxn-result-error .rxn-error-retry {
  align-self: flex-start;
  margin-top: 0.4rem;
  padding: 0.5rem 1.1rem;
  background: transparent;
  color: var(--accent-gold);
  border: 1px solid var(--accent-gold);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.rxn-result-error .rxn-error-retry:hover {
  background: color-mix(in oklab, var(--accent-gold) 15%, transparent);
}

/* Lifeforce-axis colors map to Shalem 5-element palette */
.rxn-result-lifeforce { border-left: 2px solid var(--text-muted); padding-left: 0.7rem; }
.rxn-result-lifeforce[data-lifeforce="fire"]       { border-left-color: #ff7a4a; }
.rxn-result-lifeforce[data-lifeforce="water"]      { border-left-color: #4a9eff; }
.rxn-result-lifeforce[data-lifeforce="air"]        { border-left-color: #ffd166; }
.rxn-result-lifeforce[data-lifeforce="earth"]      { border-left-color: #7cb342; }
.rxn-result-lifeforce[data-lifeforce="source"]     { border-left-color: #c9a961; }
.rxn-result-lifeforce[data-lifeforce="transition"] { border-left-color: #c4a8da; }

.rxn-result-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.7rem;
}
.rxn-result-pill {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
}
.rxn-result-pill strong {
  color: var(--text-bright);
  font-weight: 500;
}

@media (max-width: 900px) {
  .rxn-sheet { height: min(85vh, 800px); }
  .rxn-body { grid-template-columns: 1fr; grid-template-rows: auto auto 1fr; }
  .rxn-picker { border-right: none; border-bottom: 1px solid var(--line-soft); max-height: 200px; }
  .rxn-stage { border-right: none; border-bottom: 1px solid var(--line-soft); }
  .rxn-selected { min-height: 80px; }
  .rxn-header { padding: 0.7rem 1rem 0.6rem; }
  .rxn-mode-btn { padding: 0.4rem 0.6rem; font-size: 0.5rem; }
}

/* ============================================================
   VFX OVERHAUL — Sprint 5 · Edge Modern Art
   Animated gradient meshes · scroll-reveal · glass cards
   magnetic buttons · 3D tilt · custom cursor · noise overlay
   ============================================================ */

/* Noise overlay — subtle film grain, removes "flat digital" feel */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.78  0 0 0 0 0.66  0 0 0 0 0.38  0 0 0 0.18 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 220px 220px;
  opacity: 0.32;
  mix-blend-mode: overlay;
}

/* Custom cursor (desktop only, when fine pointer + no touch) */
@media (hover: hover) and (pointer: fine) {
  body.cursor-fx-on {
    cursor: none;
  }
  body.cursor-fx-on a,
  body.cursor-fx-on button,
  body.cursor-fx-on input,
  body.cursor-fx-on textarea,
  body.cursor-fx-on select,
  body.cursor-fx-on [role="button"] {
    cursor: none;
  }
  .cursor-dot {
    position: fixed;
    top: 0; left: 0;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-gold);
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: width 0.18s ease, height 0.18s ease, opacity 0.2s;
    will-change: transform;
    box-shadow: 0 0 12px rgba(201, 169, 97, 0.7);
  }
  .cursor-ring {
    position: fixed;
    top: 0; left: 0;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid rgba(201, 169, 97, 0.45);
    pointer-events: none;
    z-index: 9998;
    transform: translate(-50%, -50%);
    transition: width 0.25s cubic-bezier(0.4, 0, 0.2, 1),
                height 0.25s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.2s, opacity 0.2s;
    will-change: transform;
  }
  .cursor-dot.hover { width: 14px; height: 14px; }
  .cursor-ring.hover {
    width: 56px;
    height: 56px;
    border-color: rgba(201, 169, 97, 0.8);
    background: rgba(201, 169, 97, 0.05);
  }
  .cursor-dot.hidden, .cursor-ring.hidden { opacity: 0; }
}
@media (hover: none), (pointer: coarse) {
  .cursor-dot, .cursor-ring { display: none !important; }
}

/* Animated gradient meshes — replace flat hero backgrounds */
@keyframes mesh-drift-1 {
  0%, 100% { transform: translate(0%, 0%) scale(1); }
  33% { transform: translate(8%, -6%) scale(1.08); }
  66% { transform: translate(-6%, 8%) scale(0.94); }
}
@keyframes mesh-drift-2 {
  0%, 100% { transform: translate(0%, 0%) scale(1); }
  50% { transform: translate(-10%, 7%) scale(1.1); }
}
@keyframes mesh-drift-3 {
  0%, 100% { transform: translate(0%, 0%) scale(1); }
  40% { transform: translate(7%, 9%) scale(0.92); }
  80% { transform: translate(-8%, -5%) scale(1.06); }
}

.mesh-bg {
  position: absolute;
  inset: -10%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.6;
}
.mesh-bg::before, .mesh-bg::after, .mesh-bg > span {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  mix-blend-mode: screen;
}
.mesh-bg::before {
  top: 10%; left: 15%; width: 45%; height: 60%;
  background: radial-gradient(circle, var(--mesh-c1, rgba(199, 125, 255, 0.45)) 0%, transparent 70%);
  animation: mesh-drift-1 22s ease-in-out infinite;
}
.mesh-bg::after {
  bottom: 10%; right: 15%; width: 50%; height: 65%;
  background: radial-gradient(circle, var(--mesh-c2, rgba(74, 158, 255, 0.4)) 0%, transparent 70%);
  animation: mesh-drift-2 28s ease-in-out infinite;
}
.mesh-bg > span {
  top: 30%; right: 30%; width: 35%; height: 50%;
  background: radial-gradient(circle, var(--mesh-c3, rgba(201, 169, 97, 0.32)) 0%, transparent 70%);
  animation: mesh-drift-3 25s ease-in-out infinite;
  display: block;
}
@media (prefers-reduced-motion: reduce) {
  .mesh-bg::before, .mesh-bg::after, .mesh-bg > span { animation: none; }
}

/* Scroll-reveal — universal stagger pattern */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.22, 0.61, 0.36, 1),
              transform 0.8s cubic-bezier(0.22, 0.61, 0.36, 1);
  will-change: opacity, transform;
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s cubic-bezier(0.22, 0.61, 0.36, 1),
              transform 0.7s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.reveal-stagger.in > * {
  opacity: 1;
  transform: translateY(0);
}
.reveal-stagger.in > *:nth-child(1)  { transition-delay: 0.00s; }
.reveal-stagger.in > *:nth-child(2)  { transition-delay: 0.06s; }
.reveal-stagger.in > *:nth-child(3)  { transition-delay: 0.12s; }
.reveal-stagger.in > *:nth-child(4)  { transition-delay: 0.18s; }
.reveal-stagger.in > *:nth-child(5)  { transition-delay: 0.24s; }
.reveal-stagger.in > *:nth-child(6)  { transition-delay: 0.30s; }
.reveal-stagger.in > *:nth-child(7)  { transition-delay: 0.36s; }
.reveal-stagger.in > *:nth-child(8)  { transition-delay: 0.42s; }
.reveal-stagger.in > *:nth-child(9)  { transition-delay: 0.48s; }
.reveal-stagger.in > *:nth-child(10) { transition-delay: 0.54s; }

@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal-stagger > * { opacity: 1; transform: none; transition: none; }
}

/* Glass card upgrade — applies layered glassmorphism to existing cards */
.toe-card, .event-card, .detector-card, .run-card,
.candidate-card, .jwst-find, .rxn-chip, .roadmap-card,
.body-info-content, .cu-card, .legend-card, .timeline-card {
  position: relative;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.03) 0%, transparent 50%),
    var(--bg-card);
  backdrop-filter: blur(10px) saturate(1.1);
  -webkit-backdrop-filter: blur(10px) saturate(1.1);
  transition: transform 0.25s cubic-bezier(0.22, 0.61, 0.36, 1),
              border-color 0.2s, box-shadow 0.3s;
}
.toe-card::after, .event-card::after, .candidate-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: radial-gradient(
    circle at var(--mouse-x, 50%) var(--mouse-y, 0%),
    rgba(201, 169, 97, 0.10) 0%,
    transparent 35%
  );
  opacity: 0;
  transition: opacity 0.4s;
}
.toe-card:hover::after, .event-card:hover::after, .candidate-card:hover::after {
  opacity: 1;
}

/* 3D tilt on hero feature cards (desktop only) */
@media (hover: hover) and (pointer: fine) {
  .tilt-card {
    transform-style: preserve-3d;
    transition: transform 0.18s cubic-bezier(0.22, 0.61, 0.36, 1);
    will-change: transform;
  }
}

/* Magnetic buttons */
.magnetic {
  transition: transform 0.18s cubic-bezier(0.22, 0.61, 0.36, 1);
  will-change: transform;
}

/* Cinematic hero title kinetic drift on intersection */
.hero-kinetic .bh-title,
.hero-kinetic h1 {
  position: relative;
  display: inline-block;
}
.hero-kinetic .bh-title::after,
.hero-kinetic h1::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: -10px;
  width: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
  transition: width 1.4s cubic-bezier(0.22, 0.61, 0.36, 1) 0.3s;
  transform: translateX(-50%);
}
.hero-kinetic.in .bh-title::after,
.hero-kinetic.in h1::after {
  width: 60%;
}

/* Section dividers — animated gradient lines between sections */
.section-divider {
  position: relative;
  height: 1px;
  margin: 0 auto;
  max-width: 1300px;
  overflow: hidden;
  background: transparent;
}
.section-divider::before {
  content: '';
  position: absolute;
  top: 0; bottom: 0; left: 0;
  width: 100%;
  background: linear-gradient(90deg,
    transparent 0%,
    rgba(201, 169, 97, 0) 10%,
    rgba(201, 169, 97, 0.5) 50%,
    rgba(201, 169, 97, 0) 90%,
    transparent 100%);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 1.6s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.section-divider.in::before {
  transform: scaleX(1);
}

/* Splash loader refinement — slower, more cinematic */
.splash-inner {
  animation: splash-rise 1.6s cubic-bezier(0.22, 0.61, 0.36, 1);
}
@keyframes splash-rise {
  from { opacity: 0; transform: translateY(20px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Module-nav cinematic entry — slide + subtle scale */
.module-nav.visible .module-nav-inner {
  animation: nav-content-rise 0.5s cubic-bezier(0.22, 0.61, 0.36, 1);
}
@keyframes nav-content-rise {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Enhanced module nav buttons — glow on hover */
.module-nav-btn {
  position: relative;
  overflow: hidden;
}
.module-nav-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(201, 169, 97, 0.4) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}
.module-nav-btn:hover::before { opacity: 1; }

/* Progress rail dot enhancement */
.prog-dot {
  transition: all 0.25s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.prog-dot::after { transition: opacity 0.18s, transform 0.18s; }
.prog-dot.active {
  background: var(--accent-gold);
  transform: scale(1.6);
  box-shadow:
    0 0 8px rgba(201, 169, 97, 0.7),
    0 0 20px rgba(201, 169, 97, 0.3);
}
.prog-dot.active::before {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 1px solid var(--accent-gold);
  opacity: 0.4;
  animation: prog-pulse 2.4s ease-in-out infinite;
}
@keyframes prog-pulse {
  0%, 100% { transform: scale(1); opacity: 0.4; }
  50% { transform: scale(1.4); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .prog-dot.active::before { animation: none; }
}

/* Better hero gradient overlays — applied via .hero-kinetic class */
.unification-hero .mesh-bg { --mesh-c1: rgba(199, 125, 255, 0.35); --mesh-c2: rgba(74, 158, 255, 0.28); --mesh-c3: rgba(201, 169, 97, 0.35); }
.gwave-hero .mesh-bg { --mesh-c1: rgba(74, 158, 255, 0.4); --mesh-c2: rgba(201, 169, 97, 0.2); --mesh-c3: rgba(199, 125, 255, 0.25); }
.dark-hero .mesh-bg { --mesh-c1: rgba(199, 125, 255, 0.3); --mesh-c2: rgba(124, 77, 255, 0.32); --mesh-c3: rgba(201, 169, 97, 0.18); }
.life-hero .mesh-bg { --mesh-c1: rgba(124, 179, 66, 0.32); --mesh-c2: rgba(201, 169, 97, 0.28); --mesh-c3: rgba(74, 158, 255, 0.2); }

/* Make existing hero overlays render above mesh-bg */
.unification-hero-overlay,
.gwave-hero-overlay,
.dark-hero-overlay,
.life-hero-overlay { z-index: 3; }

/* CTA buttons — enhanced */
.rxn-go, .tutor-send, .play-btn, .game-btn {
  position: relative;
  overflow: hidden;
}
.rxn-go::before, .tutor-send::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 0; height: 0;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.4) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  transition: width 0.5s, height 0.5s;
  pointer-events: none;
}
.rxn-go:hover::before, .tutor-send:hover::before {
  width: 200%; height: 200%;
}

/* Card title shimmer on hover */
.toe-name, .event-title, .cand-name, .detector-name {
  position: relative;
  background-image: linear-gradient(90deg,
    var(--text-bright) 0%,
    var(--text-bright) 45%,
    rgba(255, 255, 255, 0.95) 50%,
    var(--text-bright) 55%,
    var(--text-bright) 100%);
  background-size: 200% 100%;
  background-position: 0% center;
  -webkit-background-clip: text;
  background-clip: text;
  transition: background-position 0.7s ease;
}
.toe-card:hover .toe-name,
.event-card:hover .event-title,
.candidate-card:hover .cand-name,
.detector-card:hover .detector-name {
  background-position: -100% center;
}
@media (prefers-reduced-motion: reduce) {
  .toe-name, .event-title, .cand-name, .detector-name {
    background: none;
    -webkit-text-fill-color: var(--text-bright);
  }
}

/* Footer fade glow on bottom edge */
.universe-section { position: relative; }
.universe-section::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  width: 300px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
  transform: translateX(-50%);
  opacity: 0.4;
}

/* ============================================================
   SPRINT 6 — VIDEO BACKGROUNDS
   Hero videos and section banner videos · lazy-loaded
   ============================================================ */
.video-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  opacity: 0;
  transition: opacity 0.9s cubic-bezier(0.22, 0.61, 0.36, 1);
  pointer-events: none;
}
.video-bg.loaded {
  /* Continuous breathing loop synced to video duration */
  animation: video-loop-breath var(--video-dur, 10s) ease-in-out infinite;
}
@keyframes video-loop-breath {
  0%   { opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 1; }
  100% { opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .video-bg.loaded { animation: none; opacity: 0.7; }
}

/* Z-index override on existing hero sections so the dark overlay stays above the video */
.unification-hero::after,
.gwave-hero::after,
.dark-hero::after,
.life-hero::after {
  z-index: 2;
}
.unification-hero,
.gwave-hero,
.dark-hero,
.life-hero { overflow: hidden; }

/* Hide static image background when video has loaded (smooth crossfade) */
.unification-hero .video-bg.loaded ~ .unification-hero-overlay,
.gwave-hero .video-bg.loaded ~ .gwave-hero-overlay,
.dark-hero .video-bg.loaded ~ .dark-hero-overlay,
.life-hero .video-bg.loaded ~ .life-hero-overlay {
  position: relative;
  z-index: 3;
}

/* Banner-style video for sections without dedicated hero */
.section-video-banner {
  position: relative;
  width: 100%;
  height: 280px;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
  background:
    radial-gradient(ellipse 60% 50% at 50% 50%, rgba(201, 169, 97, 0.08) 0%, transparent 65%),
    var(--bg-deep);
  margin-bottom: 0;
}
.section-video-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(7, 7, 15, 0.15) 0%,
    rgba(7, 7, 15, 0.35) 60%,
    rgba(7, 7, 15, 0.85) 95%,
    var(--bg-deep) 100%);
  z-index: 2;
  pointer-events: none;
}
.section-video-banner .video-bg { z-index: 1; }

/* Section title overlay on the banner — picked up from existing section content */
.svb-caption {
  position: absolute;
  left: 0; right: 0;
  bottom: 0.8rem;
  z-index: 3;
  text-align: center;
  padding: 0 1.5rem;
  pointer-events: none;
}
.svb-caption .svb-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.3rem;
  opacity: 0.85;
}
.svb-caption .svb-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
}

@media (max-width: 768px) {
  .section-video-banner { height: 200px; }
  .svb-caption .svb-title { font-size: 1.1rem; }
  .svb-caption .svb-eyebrow { font-size: 0.5rem; letter-spacing: 0.22em; }
}

/* ============================================================
   SPRINT 7 — POLISH PASS · Lang toggle in nav · AI prominence
   Wow-section featured dots · Ask-AI floating pill
   ============================================================ */

/* Lang toggle inside module-nav (permanent visibility on scroll) */
.module-nav-lang {
  display: inline-flex;
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  overflow: hidden;
  margin-left: 0.4rem;
}
.mnl-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.32rem 0.55rem;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  border-right: 1px solid var(--line-soft);
  transition: all 0.15s;
}
.mnl-btn:last-child { border-right: none; }
.mnl-btn:hover { color: var(--text-bright); }
.mnl-btn.active {
  background: rgba(201, 169, 97, 0.15);
  color: var(--accent-gold);
}

@media (max-width: 600px) {
  .module-nav-lang { margin-left: 0.2rem; }
  .mnl-btn { padding: 0.28rem 0.42rem; font-size: 0.5rem; }
}

/* AI-prominent buttons (Tutor + Reaction Lab) — subtle pulse to draw attention */
.module-nav-btn.ai-prominent {
  color: var(--accent-gold);
  position: relative;
}
.module-nav-btn.ai-prominent::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 50%;
  border: 1px solid var(--accent-gold);
  opacity: 0;
  animation: ai-pulse 3s ease-in-out infinite;
  pointer-events: none;
}
@keyframes ai-pulse {
  0%, 100% { opacity: 0; transform: scale(0.9); }
  35%      { opacity: 0.5; transform: scale(1); }
  60%      { opacity: 0; transform: scale(1.25); }
}
@media (prefers-reduced-motion: reduce) {
  .module-nav-btn.ai-prominent::after { animation: none; }
}

/* Floating Ask-AI pill bottom-right (hidden when scroll < 240px or drawer open) */
.ask-ai-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 130;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, rgba(201, 169, 97, 0.2), rgba(201, 169, 97, 0.1));
  border: 1px solid rgba(201, 169, 97, 0.5);
  backdrop-filter: blur(14px) saturate(1.1);
  -webkit-backdrop-filter: blur(14px) saturate(1.1);
  border-radius: 999px;
  padding: 0.65rem 1rem 0.65rem 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-gold);
  cursor: pointer;
  opacity: 0;
  transform: translateY(20px) scale(0.95);
  transition: all 0.35s cubic-bezier(0.22, 0.61, 0.36, 1);
  pointer-events: none;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4),
              0 0 32px rgba(201, 169, 97, 0.15);
}
.ask-ai-fab.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}
.ask-ai-fab:hover {
  background: linear-gradient(135deg, rgba(201, 169, 97, 0.3), rgba(201, 169, 97, 0.15));
  border-color: var(--accent-gold);
  color: var(--text-bright);
  transform: translateY(-2px) scale(1.02);
}
.ask-ai-fab-sigil {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent-gold);
  color: var(--bg-deep);
  font-size: 0.85rem;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 600;
  animation: fab-sigil-pulse 3s ease-in-out infinite;
}
@keyframes fab-sigil-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(201, 169, 97, 0.55); }
  50%      { box-shadow: 0 0 0 8px rgba(201, 169, 97, 0); }
}
@media (prefers-reduced-motion: reduce) {
  .ask-ai-fab-sigil { animation: none; }
}
@media (max-width: 600px) {
  .ask-ai-fab {
    bottom: 16px;
    right: 16px;
    padding: 0.5rem 0.8rem 0.5rem 0.6rem;
    font-size: 0.55rem;
  }
  .ask-ai-fab-sigil { width: 18px; height: 18px; font-size: 0.75rem; }
  .ask-ai-fab .fab-label { display: none; }
}

/* Wow-section progress rail dots — gold fill + soft halo ring via box-shadow.
   Box-shadow approach prevents the ::after inheritance bug where the tooltip
   ::after (with padding + right-offset) was leaking into the wow ring. */
.prog-dot.wow {
  background: var(--accent-gold);
  box-shadow:
    0 0 0 1.5px rgba(201, 169, 97, 0.38),   /* tight gold halo ring (replaces ::after) */
    0 0 8px 1px rgba(201, 169, 97, 0.40);   /* outer soft glow */
}

/* Wow indicator in command palette */
.cmdp-result.wow .cmdp-result-num::before {
  content: '★ ';
  color: var(--accent-gold);
}

/* ============================================================
   PHASE XVIII · QUANTUM REALM
   Merkaba palette: purple × cyan + gold accent
   ============================================================ */
.phase-quantum {
  --q-purple: #9b7bd8;
  --q-purple-deep: #5e3f9c;
  --q-cyan: #4fe5e5;
  --q-cyan-deep: #2aa5a5;

  position: relative;
  padding: 7rem 2rem 9rem;
  min-height: 100vh;
  background:
    radial-gradient(ellipse at 70% 30%, rgba(155,123,216,.10) 0%, transparent 50%),
    radial-gradient(ellipse at 30% 70%, rgba(79,229,229,.08) 0%, transparent 50%),
    linear-gradient(180deg, var(--bg-deep) 0%, #0c0a14 100%);
  overflow: hidden;
}
.phase-quantum::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    radial-gradient(1px 1px at 12% 22%, rgba(155,123,216,.5), transparent 60%),
    radial-gradient(1px 1px at 78% 18%, rgba(79,229,229,.4), transparent 60%),
    radial-gradient(1px 1px at 42% 73%, rgba(155,123,216,.4), transparent 60%),
    radial-gradient(1px 1px at 88% 88%, rgba(79,229,229,.3), transparent 60%),
    radial-gradient(1px 1px at 22% 92%, rgba(201,169,97,.4), transparent 60%),
    radial-gradient(1px 1px at 58% 8%, rgba(244,241,232,.3), transparent 60%);
  pointer-events: none;
  animation: q-stars 24s linear infinite;
  opacity: .8;
}
@keyframes q-stars { 0%,100%{opacity:.8} 50%{opacity:.35} }

.phase-quantum .qh-eyebrow {
  font-family: var(--font-mono);
  font-size: .7rem; letter-spacing: .35em;
  color: var(--q-cyan); text-transform: uppercase;
  margin-bottom: 1rem; text-align: center;
  position: relative; z-index: 2;
}
.phase-quantum .qh-eyebrow::before,
.phase-quantum .qh-eyebrow::after {
  content: ''; display: inline-block;
  width: 36px; height: 1px;
  background: var(--q-cyan-deep);
  vertical-align: middle; margin: 0 .8rem; opacity: .5;
}
.phase-quantum .qh-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 500; font-style: italic;
  text-align: center; margin: 0 0 .8rem;
  background: linear-gradient(135deg, var(--q-cyan) 0%, var(--text-bright) 35%, var(--q-purple) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  position: relative; z-index: 2;
  line-height: 1.1;
}
.phase-quantum .qh-sub {
  text-align: center; font-size: 1.15rem;
  color: var(--text-muted);
  font-style: italic; max-width: 640px;
  margin: 0 auto 4rem; position: relative; z-index: 2;
  font-family: var(--font-display);
}

.q-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 2rem;
  max-width: 1180px; margin: 0 auto;
  position: relative; z-index: 2;
}
@media (max-width: 880px) { .q-grid { grid-template-columns: 1fr; } }

/* The new 3D orbital card spans both columns — it's the hero element of
   the quantum section, the others sit underneath in their 2-col grid. */
.q-card-3d {
  grid-column: 1 / -1;
}

.q-card {
  background: linear-gradient(180deg, rgba(255,255,255,.025) 0%, rgba(255,255,255,.005) 100%);
  border: 1px solid var(--line-soft);
  border-radius: 2px; padding: 2rem;
  position: relative;
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  transition: border-color .4s;
}
.q-card:hover { border-color: rgba(155,123,216,.35); }
.q-card::before {
  content: ''; position: absolute; top: 0; left: 0;
  width: 28px; height: 1px;
  background: var(--q-cyan); opacity: .7;
}
.q-card h3 {
  font-family: var(--font-display);
  font-size: 1.6rem; font-weight: 500; font-style: italic;
  margin: 0 0 .35rem; color: var(--text-bright);
}
.q-card .q-card-sub {
  font-family: var(--font-mono);
  font-size: .65rem; letter-spacing: .3em;
  text-transform: uppercase; color: var(--q-cyan-deep);
  margin-bottom: 1.5rem;
}

/* Heisenberg */
.q-heis-eq {
  font-family: var(--font-mono);
  font-size: 1.3rem; text-align: center;
  padding: 1rem 0 1.5rem; color: var(--q-purple);
  letter-spacing: .04em;
}
.q-heis-eq small {
  display: block; font-size: .65rem;
  color: var(--text-muted);
  letter-spacing: .2em; margin-top: .4rem; text-transform: uppercase;
  font-family: var(--font-mono);
}
.q-slider-wrap { margin: 1.5rem 0; }
.q-slider-labels {
  display: flex; justify-content: space-between;
  font-family: var(--font-mono);
  font-size: .65rem; letter-spacing: .2em;
  color: var(--text-muted);
  text-transform: uppercase; margin-bottom: .6rem;
}
.q-slider {
  width: 100%; appearance: none; -webkit-appearance: none;
  background: transparent; cursor: pointer; height: 24px;
}
.q-slider::-webkit-slider-runnable-track {
  height: 2px;
  background: linear-gradient(90deg, var(--q-cyan) 0%, var(--q-purple) 100%);
}
.q-slider::-moz-range-track {
  height: 2px;
  background: linear-gradient(90deg, var(--q-cyan) 0%, var(--q-purple) 100%);
}
.q-slider::-webkit-slider-thumb {
  -webkit-appearance: none; width: 16px; height: 16px; border-radius: 50%;
  background: var(--accent-gold);
  border: 2px solid var(--bg-deep);
  margin-top: -7px; box-shadow: 0 0 12px rgba(201,169,97,.45);
}
.q-slider::-moz-range-thumb {
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--accent-gold);
  border: 2px solid var(--bg-deep);
  box-shadow: 0 0 12px rgba(201,169,97,.45);
}
.q-heis-readout {
  display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1rem;
  margin-top: 1.2rem; padding-top: 1.2rem;
  border-top: 1px solid var(--line-soft);
}
.q-heis-readout > div { text-align: center; }
.q-heis-readout .label {
  font-family: var(--font-mono);
  font-size: .58rem; letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: .3rem;
}
.q-heis-readout .val {
  font-family: var(--font-mono);
  font-size: 1.05rem; color: var(--accent-gold); font-weight: 500;
}
.q-heis-readout .val.ok { color: var(--q-cyan); }
.q-heis-svg { width: 100%; height: 160px; margin-top: 1rem; }

/* Entanglement */
.q-entangle-stage { position: relative; height: 240px; margin: 1rem 0 1.5rem; }
.q-entangle-svg { width: 100%; height: 100%; }
.q-entangle-controls { display: flex; gap: .8rem; flex-wrap: wrap; }
.q-btn {
  background: transparent;
  border: 1px solid var(--q-purple-deep);
  color: var(--q-purple);
  padding: .7rem 1.4rem;
  font-family: var(--font-mono);
  font-size: .7rem; letter-spacing: .2em;
  text-transform: uppercase; cursor: pointer;
  transition: all .3s; border-radius: 1px;
}
.q-btn:hover {
  background: rgba(155,123,216,.08);
  color: var(--text-bright); border-color: var(--q-purple);
}
.q-btn.q-btn-cyan { border-color: var(--q-cyan-deep); color: var(--q-cyan); }
.q-btn.q-btn-cyan:hover { background: rgba(79,229,229,.08); border-color: var(--q-cyan); color: var(--text-bright); }
.q-entangle-status {
  font-family: var(--font-mono);
  font-size: .7rem; letter-spacing: .15em;
  color: var(--text-muted);
  text-transform: uppercase; margin-top: 1rem; min-height: 1.2em;
}

/* Quantum biology */
.q-bio-section { grid-column: 1 / -1; margin-top: 1rem; }
.q-bio-header { text-align: center; margin-bottom: 2rem; }
.q-bio-header h3 {
  font-family: var(--font-display);
  font-size: 2rem; font-style: italic; font-weight: 500;
  margin: 0 0 .4rem; color: var(--text-bright);
}
.q-bio-header p { color: var(--text-muted); font-style: italic; margin: 0; font-family: var(--font-display); }
.q-bio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
@media (max-width: 880px) { .q-bio-grid { grid-template-columns: 1fr; } }
.q-bio-card {
  padding: 1.8rem 1.5rem;
  background: linear-gradient(180deg, rgba(155,123,216,.04) 0%, rgba(79,229,229,.02) 100%);
  border: 1px solid var(--line-soft);
  border-radius: 2px; position: relative;
  transition: transform .4s, border-color .4s;
}
.q-bio-card:hover { transform: translateY(-3px); border-color: rgba(155,123,216,.35); }
.q-bio-icon {
  width: 56px; height: 56px; border-radius: 50%;
  background: radial-gradient(circle, rgba(155,123,216,.2) 0%, transparent 70%);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1rem; border: 1px solid rgba(155,123,216,.3);
}
.q-bio-icon svg { width: 28px; height: 28px; }
.q-bio-card h4 {
  font-family: var(--font-display);
  font-size: 1.35rem; font-style: italic; font-weight: 500;
  margin: 0 0 .3rem; color: var(--text-bright);
}
.q-bio-card .q-bio-meta {
  font-family: var(--font-mono);
  font-size: .58rem; letter-spacing: .25em;
  text-transform: uppercase; color: var(--q-cyan-deep);
  margin-bottom: 1rem;
}
.q-bio-card p {
  font-size: 1rem; line-height: 1.55;
  color: var(--text-soft); margin: 0;
  font-family: var(--font-body);
}

/* Orbitals */
.q-orb-section { grid-column: 1 / -1; margin-top: 3rem; }
.q-orb-card {
  padding: 2.5rem;
  background: linear-gradient(180deg, rgba(255,255,255,.02) 0%, transparent 100%);
  border: 1px solid var(--line-soft);
  border-radius: 2px; position: relative;
}
.q-orb-card::before {
  content: ''; position: absolute; top: 0; left: 0;
  width: 28px; height: 1px;
  background: var(--q-purple); opacity: .7;
}
.q-orb-layout { display: grid; grid-template-columns: 1fr 1.2fr; gap: 2.5rem; align-items: center; }
@media (max-width: 880px) { .q-orb-layout { grid-template-columns: 1fr; } }
.q-orb-canvas-wrap {
  aspect-ratio: 1 / 1; max-width: 480px; margin: 0 auto;
  position: relative; border: 1px solid var(--line-soft);
  border-radius: 2px; overflow: hidden; background: #050507;
}
.q-orb-canvas-wrap canvas { display: block; width: 100%; height: 100%; }
.q-orb-tabs { display: flex; gap: .5rem; margin-bottom: 1.5rem; flex-wrap: wrap; }
.q-orb-tab {
  background: transparent;
  border: 1px solid var(--line-soft);
  color: var(--text-muted);
  padding: .55rem 1.1rem;
  font-family: var(--font-mono);
  font-size: .8rem; letter-spacing: .12em;
  cursor: pointer; transition: all .3s; border-radius: 1px;
}
.q-orb-tab:hover { color: var(--text-bright); border-color: var(--q-purple-deep); }
.q-orb-tab.active { color: var(--q-cyan); border-color: var(--q-cyan); background: rgba(79,229,229,.05); }
.q-orb-name {
  font-family: var(--font-display);
  font-size: 1.8rem; font-style: italic; font-weight: 500;
  margin: 0 0 .3rem; color: var(--text-bright);
}
.q-orb-formula {
  font-family: var(--font-mono);
  font-size: .75rem; color: var(--q-purple);
  letter-spacing: .05em; margin-bottom: 1rem;
}
.q-orb-info { font-size: 1.05rem; line-height: 1.65; color: var(--text-soft); font-family: var(--font-body); }
.q-orb-stats {
  display: flex; gap: 1.5rem; margin-top: 1.5rem; padding-top: 1.5rem;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: .7rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--text-muted);
  flex-wrap: wrap;
}
.q-orb-stats b { color: var(--accent-gold); font-weight: 500; }

/* Pull quote */
.q-quote {
  margin: 6rem auto 0; max-width: 760px;
  text-align: center; padding: 0 2rem;
  position: relative; z-index: 2;
}
.q-quote::before {
  content: ''; display: block;
  width: 1px; height: 60px;
  background: linear-gradient(180deg, transparent, var(--q-cyan), transparent);
  margin: 0 auto 2rem;
}
.q-quote blockquote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.5rem, 3.6vw, 2.4rem);
  font-weight: 400; line-height: 1.35;
  color: var(--text-bright); margin: 0 0 1rem;
  letter-spacing: -.01em;
}
.q-quote cite {
  font-family: var(--font-mono);
  font-size: .7rem; letter-spacing: .3em;
  text-transform: uppercase; color: var(--q-cyan-deep);
  font-style: normal;
}

@media (prefers-reduced-motion: reduce) {
  .phase-quantum::before { animation: none; opacity: .4; }
  .q-bio-card:hover { transform: none; }
}

/* ============================================================
   PHASE XIX · MUSIC OF MATTER (Audio Engine)
   Sun palette: amber-gold × deep indigo
   ============================================================ */
.phase-music {
  --m-gold:   #e8b75c;
  --m-amber:  #ff9b3d;
  --m-indigo: #4338a8;
  --m-indigo-deep: #1e1a52;

  position: relative;
  padding: 7rem 2rem 9rem;
  min-height: 100vh;
  background:
    radial-gradient(ellipse at 30% 25%, rgba(232,183,92,.12) 0%, transparent 50%),
    radial-gradient(ellipse at 75% 80%, rgba(67,56,168,.18) 0%, transparent 55%),
    linear-gradient(180deg, #0a0814 0%, var(--bg-deep) 100%);
  overflow: hidden;
}
.phase-music::before {
  content: '';
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    radial-gradient(2px 2px at 8% 24%, rgba(232,183,92,.5), transparent 70%),
    radial-gradient(1px 1px at 22% 88%, rgba(255,155,61,.4), transparent 60%),
    radial-gradient(1px 1px at 56% 12%, rgba(232,183,92,.4), transparent 60%),
    radial-gradient(1px 1px at 82% 38%, rgba(67,56,168,.5), transparent 60%),
    radial-gradient(1px 1px at 92% 76%, rgba(232,183,92,.35), transparent 60%);
  opacity: .9;
  animation: m-glints 28s linear infinite;
}
@keyframes m-glints { 0%,100%{opacity:.9} 50%{opacity:.45} }

.phase-music .mh-eyebrow {
  font-family: var(--font-mono);
  font-size: .7rem; letter-spacing: .35em;
  color: var(--m-gold); text-transform: uppercase;
  margin-bottom: 1rem; text-align: center;
  position: relative; z-index: 2;
}
.phase-music .mh-eyebrow::before,
.phase-music .mh-eyebrow::after {
  content: ''; display: inline-block;
  width: 36px; height: 1px;
  background: var(--m-amber);
  vertical-align: middle; margin: 0 .8rem; opacity: .5;
}
.phase-music .mh-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 500; font-style: italic;
  text-align: center; margin: 0 0 .8rem;
  background: linear-gradient(135deg, var(--m-gold) 0%, var(--text-bright) 40%, var(--m-amber) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  position: relative; z-index: 2;
  line-height: 1.1;
}
.phase-music .mh-sub {
  text-align: center; font-size: 1.15rem;
  color: var(--text-muted);
  font-style: italic; max-width: 640px;
  margin: 0 auto 4rem; position: relative; z-index: 2;
  font-family: var(--font-display);
}

.m-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 2rem;
  max-width: 1180px; margin: 0 auto;
  position: relative; z-index: 2;
}
@media (max-width: 880px) { .m-grid { grid-template-columns: 1fr; } }

.m-card {
  background: linear-gradient(180deg, rgba(232,183,92,.03) 0%, rgba(67,56,168,.02) 100%);
  border: 1px solid var(--line-soft);
  border-radius: 2px;
  padding: 2rem;
  position: relative;
  transition: border-color .4s;
}
.m-card:hover { border-color: rgba(232,183,92,.3); }
.m-card::before {
  content: ''; position: absolute; top: 0; left: 0;
  width: 28px; height: 1px;
  background: var(--m-gold); opacity: .7;
}
.m-card h3 {
  font-family: var(--font-display);
  font-size: 1.6rem; font-weight: 500; font-style: italic;
  margin: 0 0 .35rem; color: var(--text-bright);
}
.m-card .m-card-sub {
  font-family: var(--font-mono);
  font-size: .65rem; letter-spacing: .3em;
  text-transform: uppercase; color: var(--m-amber);
  margin-bottom: 1.5rem;
}

/* Master control card */
.m-master .m-power-btn {
  display: flex;
  align-items: center;
  gap: .8rem;
  width: 100%;
  background: transparent;
  border: 1px solid var(--m-amber);
  color: var(--m-gold);
  padding: 1rem 1.4rem;
  font-family: var(--font-mono);
  font-size: .75rem; letter-spacing: .25em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all .3s;
  border-radius: 1px;
}
.m-master .m-power-btn:hover {
  background: rgba(232,183,92,.08);
  color: var(--text-bright);
  border-color: var(--m-gold);
}
.m-master .m-power-btn.active {
  background: linear-gradient(90deg, rgba(232,183,92,.15) 0%, rgba(255,155,61,.05) 100%);
  border-color: var(--m-gold);
  color: var(--text-bright);
}
.m-master .m-power-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--text-dim);
  box-shadow: none;
  transition: all .3s;
}
.m-master .m-power-btn.active .m-power-dot {
  background: var(--m-gold);
  box-shadow: 0 0 12px var(--m-gold);
  animation: m-pulse 2.4s ease-in-out infinite;
}
@keyframes m-pulse {
  0%, 100% { box-shadow: 0 0 8px var(--m-gold); }
  50%      { box-shadow: 0 0 18px var(--m-gold); }
}
.m-master .m-volume-row {
  margin-top: 1.5rem;
}
.m-master .m-volume-labels {
  display: flex; justify-content: space-between;
  font-family: var(--font-mono);
  font-size: .58rem; letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: .5rem;
}
.m-volume-slider {
  width: 100%; appearance: none; -webkit-appearance: none;
  background: transparent; cursor: pointer; height: 22px;
}
.m-volume-slider::-webkit-slider-runnable-track {
  height: 2px;
  background: linear-gradient(90deg, var(--m-indigo) 0%, var(--m-gold) 100%);
}
.m-volume-slider::-moz-range-track {
  height: 2px;
  background: linear-gradient(90deg, var(--m-indigo) 0%, var(--m-gold) 100%);
}
.m-volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none; width: 14px; height: 14px; border-radius: 50%;
  background: var(--m-gold);
  border: 2px solid var(--bg-deep);
  margin-top: -6px;
  box-shadow: 0 0 10px rgba(232,183,92,.5);
}
.m-volume-slider::-moz-range-thumb {
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--m-gold);
  border: 2px solid var(--bg-deep);
  box-shadow: 0 0 10px rgba(232,183,92,.5);
}
.m-master .m-status {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: .65rem; letter-spacing: .15em;
  color: var(--text-muted);
  min-height: 1.4em;
}
.m-master .m-status b { color: var(--m-gold); font-weight: 500; }

/* Visualizer card */
.m-viz-canvas-wrap {
  aspect-ratio: 2 / 1;
  background: #050507;
  border: 1px solid var(--line-soft);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 1rem;
}
.m-viz-canvas-wrap canvas { display: block; width: 100%; height: 100%; }
.m-viz-legend {
  font-family: var(--font-mono);
  font-size: .6rem; letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: flex; justify-content: space-between;
}

/* Element keyboard */
.m-keys-section {
  grid-column: 1 / -1; margin-top: 1rem;
}
.m-keys-header { text-align: center; margin-bottom: 2rem; }
.m-keys-header h3 {
  font-family: var(--font-display);
  font-size: 2rem; font-style: italic; font-weight: 500;
  margin: 0 0 .4rem; color: var(--text-bright);
}
.m-keys-header p { color: var(--text-muted); font-style: italic; margin: 0; font-family: var(--font-display); }

.m-keyboard {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 6px;
  max-width: 900px;
  margin: 0 auto;
}
@media (max-width: 880px) { .m-keyboard { grid-template-columns: repeat(6, 1fr); } }
.m-key {
  background: linear-gradient(180deg, rgba(232,183,92,.06) 0%, rgba(67,56,168,.04) 100%);
  border: 1px solid var(--line-soft);
  border-radius: 2px;
  padding: 1rem .6rem 1.2rem;
  cursor: pointer;
  transition: all .25s;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.m-key::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: 0;
  height: 2px; background: var(--m-gold);
  transform: scaleX(0); transform-origin: center;
  transition: transform .25s;
}
.m-key:hover {
  border-color: var(--m-gold);
  background: linear-gradient(180deg, rgba(232,183,92,.14) 0%, rgba(67,56,168,.08) 100%);
  transform: translateY(-2px);
}
.m-key:hover::after { transform: scaleX(1); }
.m-key.playing {
  border-color: var(--m-gold);
  background: linear-gradient(180deg, rgba(232,183,92,.25) 0%, rgba(255,155,61,.1) 100%);
  box-shadow: 0 0 24px rgba(232,183,92,.35);
}
.m-key-symbol {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 500; font-style: italic;
  color: var(--text-bright);
  line-height: 1;
  margin-bottom: .35rem;
}
.m-key-z {
  font-family: var(--font-mono);
  font-size: .55rem;
  color: var(--text-muted);
  letter-spacing: .15em;
  margin-bottom: .2rem;
}
.m-key-note {
  font-family: var(--font-mono);
  font-size: .55rem; letter-spacing: .15em;
  color: var(--m-amber);
  text-transform: uppercase;
}
.m-key[data-fam="fire"] { --m-fam: #ff5e3a; }
.m-key[data-fam="water"] { --m-fam: #4a9eff; }
.m-key[data-fam="air"] { --m-fam: #ffd166; }
.m-key[data-fam="earth"] { --m-fam: #7cb342; }
.m-key[data-fam="source"] { --m-fam: #c77dff; }
.m-key::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 2px; background: var(--m-fam, var(--m-gold));
  opacity: .5;
}

/* Family chords */
.m-fam-section {
  grid-column: 1 / -1; margin-top: 2.5rem;
  text-align: center;
}
.m-fam-section h3 {
  font-family: var(--font-display);
  font-size: 1.6rem; font-style: italic; font-weight: 500;
  margin: 0 0 .4rem; color: var(--text-bright);
}
.m-fam-section p {
  color: var(--text-muted); font-style: italic; margin: 0 0 2rem;
  font-family: var(--font-display);
}
.m-fam-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
  max-width: 760px;
  margin: 0 auto;
}
@media (max-width: 720px) { .m-fam-row { grid-template-columns: repeat(2, 1fr); } }
.m-fam-btn {
  background: rgba(255,255,255,.02);
  border: 1px solid var(--line-soft);
  border-radius: 2px;
  padding: 1.4rem 1rem;
  cursor: pointer;
  transition: all .3s;
  text-align: center;
}
.m-fam-btn:hover {
  transform: translateY(-3px);
  background: rgba(232,183,92,.06);
}
.m-fam-btn[data-fam="fire"]   { border-top: 2px solid var(--fire-base); }
.m-fam-btn[data-fam="water"]  { border-top: 2px solid var(--water-base); }
.m-fam-btn[data-fam="air"]    { border-top: 2px solid var(--air-base); }
.m-fam-btn[data-fam="earth"]  { border-top: 2px solid var(--earth-base); }
.m-fam-btn[data-fam="source"] { border-top: 2px solid var(--source-base); }
.m-fam-btn[data-fam="fire"]:hover   { border-color: var(--fire-base); box-shadow: 0 0 20px var(--fire-glow); }
.m-fam-btn[data-fam="water"]:hover  { border-color: var(--water-base); box-shadow: 0 0 20px var(--water-glow); }
.m-fam-btn[data-fam="air"]:hover    { border-color: var(--air-base); box-shadow: 0 0 20px var(--air-glow); }
.m-fam-btn[data-fam="earth"]:hover  { border-color: var(--earth-base); box-shadow: 0 0 20px var(--earth-glow); }
.m-fam-btn[data-fam="source"]:hover { border-color: var(--source-base); box-shadow: 0 0 20px var(--source-glow); }
.m-fam-btn .m-fam-glyph {
  font-family: var(--font-display);
  font-size: 1.8rem; font-style: italic;
  color: var(--text-bright);
  margin-bottom: .2rem;
}
.m-fam-btn .m-fam-label {
  font-family: var(--font-mono);
  font-size: .58rem; letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.m-fam-btn[data-fam="fire"] .m-fam-label   { color: var(--fire-base); }
.m-fam-btn[data-fam="water"] .m-fam-label  { color: var(--water-base); }
.m-fam-btn[data-fam="air"] .m-fam-label    { color: var(--air-base); }
.m-fam-btn[data-fam="earth"] .m-fam-label  { color: var(--earth-base); }
.m-fam-btn[data-fam="source"] .m-fam-label { color: var(--source-base); }

/* Hover-on-table hint banner */
.m-table-hint {
  grid-column: 1 / -1;
  margin: 2.5rem auto 0;
  max-width: 700px;
  text-align: center;
  padding: 1.2rem 1.5rem;
  border: 1px dashed var(--m-amber);
  border-radius: 2px;
  background: rgba(232,183,92,.03);
  color: var(--text-soft);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.05rem;
}
.m-table-hint b {
  color: var(--m-gold); font-weight: 500; font-style: normal;
  font-family: var(--font-mono);
  font-size: .7rem; letter-spacing: .2em; text-transform: uppercase;
}

/* Pull quote */
.m-quote {
  margin: 6rem auto 0; max-width: 800px;
  text-align: center; padding: 0 2rem;
  position: relative; z-index: 2;
}
.m-quote::before {
  content: ''; display: block;
  width: 1px; height: 60px;
  background: linear-gradient(180deg, transparent, var(--m-gold), transparent);
  margin: 0 auto 2rem;
}
.m-quote blockquote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.5rem, 3.6vw, 2.4rem);
  font-weight: 400; line-height: 1.35;
  color: var(--text-bright); margin: 0 0 1rem;
}
.m-quote cite {
  font-family: var(--font-mono);
  font-size: .7rem; letter-spacing: .3em;
  text-transform: uppercase; color: var(--m-amber);
  font-style: normal;
}

@media (prefers-reduced-motion: reduce) {
  .phase-music::before { animation: none; opacity: .4; }
  .m-key:hover, .m-fam-btn:hover { transform: none; }
  .m-master .m-power-btn.active .m-power-dot { animation: none; }
}

/* ============================================================
   PROGRESSIVE DISCLOSURE  —  AudioNarrator, Accordions, Follow-ups
   shared across all phases that opt into the deeper-layer UX
   ============================================================ */

/* ---- AudioNarrator floating pill (bottom-left) -------------- */
.narr-pill {
  position: fixed;
  bottom: 1.5rem; left: 1.5rem;
  z-index: 60;
  display: flex; align-items: center; gap: .55rem;
  padding: .7rem 1.1rem;
  background: rgba(7,7,15,.78);
  border: 1px solid rgba(201,169,97,.35);
  border-radius: 999px;
  color: var(--text-bright);
  font-family: var(--font-mono);
  font-size: .68rem; letter-spacing: .18em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all .35s;
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  opacity: 0; transform: translateY(20px); pointer-events: none;
}
.narr-pill.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.narr-pill:hover { border-color: var(--accent-gold); background: rgba(7,7,15,.9); }
.narr-pill[disabled],
.narr-pill[data-disabled="true"] {
  opacity: .45; cursor: not-allowed;
  border-color: var(--line-soft); color: var(--text-muted);
}
.narr-pill .narr-icon {
  width: 22px; height: 22px;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent-gold);
}
.narr-pill .narr-icon svg { width: 16px; height: 16px; fill: currentColor; }
.narr-pill.playing .narr-icon { color: var(--m-gold, #e8b75c); animation: narr-icon-pulse 1.6s ease-in-out infinite; }
@keyframes narr-icon-pulse { 0%,100%{opacity:1} 50%{opacity:.55} }
.narr-pill.loading .narr-icon { animation: narr-spin 1s linear infinite; }
@keyframes narr-spin { to { transform: rotate(360deg); } }

/* ---- Floating audio player bar ------------------------------ */
/* ============================================================
   NARRATOR PLAYER · pill shape, moderator-centric, dezent controls
   ============================================================ */
.narr-player {
  position: fixed;
  bottom: 1.5rem; left: 50%;
  transform: translate(-50%, 30px);
  z-index: 65;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1rem;
  align-items: center;
  padding: 0.4rem 1rem 0.4rem 0.4rem;
  width: min(360px, calc(100vw - 2rem));
  border-radius: 999px;          /* pill */
  background: var(--lg-surface-strong);
  backdrop-filter: var(--lg-backdrop);
  -webkit-backdrop-filter: var(--lg-backdrop);
  border: 1px solid var(--lg-border);
  box-shadow: var(--lg-shadow-deep);
  color: var(--text-bright);
  opacity: 0; pointer-events: none;
  transition: opacity .3s, transform .3s;
}
.narr-player.visible { opacity: 1; transform: translate(-50%, 0); pointer-events: auto; }

/* ---- Moderator avatar (84px) with progress ring around it ---- */
.narr-moderator {
  position: relative;
  width: 84px; height: 84px;
  flex-shrink: 0;
  cursor: pointer;
  border-radius: 50%;
  contain: layout style;
  outline: none;
}
.narr-moderator:focus-visible { box-shadow: 0 0 0 2px rgba(201,169,97,.6); }
.narr-moderator:hover .narr-play-overlay,
.narr-moderator:focus-visible .narr-play-overlay { opacity: 1; }
.narr-moderator:hover .narr-mod-halo { opacity: 0.7; }

/* Circular SVG progress ring around the avatar */
.narr-progress-ring {
  position: absolute;
  inset: 0;
  width: 84px; height: 84px;
  transform: rotate(-90deg);    /* start arc at 12 o'clock */
  pointer-events: none;
  z-index: 3;
  overflow: visible;
}
.narr-progress-ring .ring-bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.08);
  stroke-width: 2;
}
.narr-progress-ring .ring-fg {
  fill: none;
  stroke: url(#narr-ring-grad);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-dasharray: 251.33;     /* 2π × 40 (radius) */
  stroke-dashoffset: 251.33;    /* empty start */
  transition: stroke-dashoffset 0.18s linear;
  filter: drop-shadow(0 0 4px rgba(201,169,97,0.35));
}

/* Moderator sprite — 72px inside the 84px container, 6px from edge */
.narr-mod-sprite {
  position: absolute;
  inset: 6px;
  width: 72px; height: 72px;
  background-image: url('moderator-sprite.webp?v=20260517uu');
  background-size: 216px 216px;
  background-position: 0 0;
  background-repeat: no-repeat;
  transition: opacity 0.35s;
  transform: translateZ(0);
  backface-visibility: hidden;
  will-change: background-position;
  z-index: 2;
  border-radius: 50%;
}
.narr-mod-sprite.state-idle      { background-position:    0    0; }
.narr-mod-sprite.state-blink-1   { background-position: -72px   0; }
.narr-mod-sprite.state-blink-2   { background-position: -144px  0; }
.narr-mod-sprite.state-mouth-1   { background-position:    0 -72px; }
.narr-mod-sprite.state-mouth-2   { background-position: -72px -72px; }
.narr-mod-sprite.state-mouth-3   { background-position: -144px -72px; }
.narr-mod-sprite.state-thinking  { background-position:    0 -144px; }
.narr-mod-sprite.state-smile     { background-position: -72px -144px; }
.narr-mod-sprite.state-ended     { background-position: -144px -144px; opacity: 0.7; }

/* Halo behind sprite */
.narr-mod-halo {
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  background: radial-gradient(circle,
    rgba(201,169,97,0) 32%,
    rgba(155,123,216,0.20) 55%,
    rgba(79,229,229,0.10) 75%,
    transparent 100%);
  opacity: 0;
  transition: opacity 0.5s;
  pointer-events: none;
  z-index: 1;
  animation: narr-halo-rotate 24s linear infinite;
  transform-origin: center center;
  will-change: transform;
}
.narr-moderator.active .narr-mod-halo   { opacity: 1; }
.narr-moderator.thinking .narr-mod-halo { opacity: 0.7; }
@keyframes narr-halo-rotate {
  from { transform: rotate(0deg)   translateZ(0); }
  to   { transform: rotate(360deg) translateZ(0); }
}

/* Play/Pause icon overlay — fades in on hover/focus */
.narr-play-overlay {
  position: absolute;
  inset: 6px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: radial-gradient(circle, rgba(0,0,0,0.50) 0%, transparent 75%);
  opacity: 0;
  transition: opacity 0.25s;
  pointer-events: none;
  z-index: 4;
}
.narr-play-overlay svg {
  width: 22px; height: 22px;
  fill: rgba(255,255,255,0.92);
}

/* Loading: pulse ring at the edge of the avatar (just outside the progress ring) */
.narr-moderator.thinking::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 50%;
  border: 1.5px solid rgba(201, 169, 97, 0.32);
  animation: narr-mod-pulse 1.4s ease-in-out infinite;
  pointer-events: none;
  z-index: 5;
}
@keyframes narr-mod-pulse {
  0%, 100% { transform: scale(0.96); opacity: 0.35; }
  50%      { transform: scale(1.06); opacity: 0.85; }
}

/* ---- Info column (title + time + status) ---- */
.narr-info { min-width: 0; padding-right: 0.2rem; }
.narr-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.02rem;
  line-height: 1.18;
  color: var(--text-bright);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 0.18rem;
}
.narr-time {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  color: var(--text-muted);
}
.narr-time-sep { opacity: 0.4; padding: 0 0.18em; }
.narr-status {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-top: 0.18rem;
  min-height: 0.7rem;
}
.narr-status.err { color: #ff5e3a; }

/* ---- Close button (dezent, hover-reveal) ---- */
.narr-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  width: 28px; height: 28px;
  border-radius: 50%;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.25s;
  opacity: 0.5;
  padding: 0;
  margin-right: 0.1rem;
  flex-shrink: 0;
}
.narr-close-btn:hover {
  opacity: 1;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-bright);
}
.narr-close-btn svg {
  width: 14px; height: 14px;
  fill: currentColor;
}

@media (prefers-reduced-motion: reduce) {
  .narr-mod-halo { animation: none; }
  .narr-moderator.thinking::after { animation: none; }
  .narr-mod-sprite { transition: opacity 0.35s; }
  .narr-progress-ring .ring-fg { transition: none; }
  .narr-moderator.new-content { animation: none; }
}

/* Avatar "new content arrived" flash — quick scale + glow pulse.
   Fires when the player updates to a new section's content. */
.narr-moderator.new-content {
  animation: narr-mod-newcontent 700ms cubic-bezier(.2, .8, .2, 1);
}
@keyframes narr-mod-newcontent {
  0%   { transform: scale(1);    filter: brightness(1);   }
  18%  { transform: scale(1.10); filter: brightness(1.45) drop-shadow(0 0 18px rgba(232,183,92,.65)); }
  100% { transform: scale(1);    filter: brightness(1);   }
}

/* Hide the legacy floating pill — the player is now the primary surface,
   auto-fading in/out based on scroll context. Pill is no longer needed.
   We hide via CSS so existing JS references don't break. */
.narr-pill { display: none !important; }


@media (max-width: 640px) {
  .narr-player {
    bottom: 0.8rem;
    padding: 0.35rem 0.8rem 0.35rem 0.35rem;
    width: calc(100vw - 1.6rem);
    gap: 0.7rem;
  }
  .narr-moderator { width: 64px; height: 64px; }
  .narr-progress-ring { width: 64px; height: 64px; }
  .narr-mod-sprite {
    inset: 4px;
    width: 56px; height: 56px;
    background-size: 168px 168px;
  }
  .narr-play-overlay { inset: 4px; }
  .narr-mod-sprite.state-blink-1   { background-position: -56px   0; }
  .narr-mod-sprite.state-blink-2   { background-position: -112px  0; }
  .narr-mod-sprite.state-mouth-1   { background-position:    0 -56px; }
  .narr-mod-sprite.state-mouth-2   { background-position: -56px -56px; }
  .narr-mod-sprite.state-mouth-3   { background-position: -112px -56px; }
  .narr-mod-sprite.state-thinking  { background-position:    0 -112px; }
  .narr-mod-sprite.state-smile     { background-position: -56px -112px; }
  .narr-mod-sprite.state-ended     { background-position: -112px -112px; }
  .narr-title { font-size: 0.92rem; }
  .narr-close-btn { width: 24px; height: 24px; }
  .narr-close-btn svg { width: 12px; height: 12px; }
}

/* ---- Progressive disclosure: per-section accordion block --- */
.phase-discover {
  max-width: 980px;
  margin: 2.5rem auto 0;
  padding: 0 2rem;
}
.pd-eyebrow-section {
  font-family: var(--font-mono);
  font-size: .58rem; letter-spacing: .35em;
  text-transform: uppercase;
  color: var(--accent-gold);
  text-align: center;
  margin-bottom: 1.5rem;
}
.pd-eyebrow-section::before,
.pd-eyebrow-section::after {
  content: ''; display: inline-block;
  width: 28px; height: 1px;
  background: rgba(201,169,97,.4);
  vertical-align: middle; margin: 0 .8rem;
}
.phase-disc-item {
  border-top: 1px solid var(--line-soft);
  background: linear-gradient(180deg, rgba(255,255,255,.012) 0%, transparent 100%);
}
.phase-disc-item:last-child { border-bottom: 1px solid var(--line-soft); }
.phase-disc-item > summary {
  list-style: none;
  cursor: pointer;
  padding: 1.1rem 1.5rem 1.1rem 0;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
  transition: background .25s;
  position: relative;
}
.phase-disc-item > summary::-webkit-details-marker { display: none; }
.phase-disc-item > summary::marker { content: ''; }
.phase-disc-item > summary:hover { background: rgba(201,169,97,.025); }
.phase-disc-item > summary .pd-summary-left {
  display: flex; align-items: baseline; gap: 1.2rem;
  min-width: 0; flex: 1;
}
.phase-disc-item > summary .pd-eyebrow {
  font-family: var(--font-mono);
  font-size: .62rem; letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--accent-gold);
  white-space: nowrap;
  flex-shrink: 0;
}
.phase-disc-item > summary .pd-title {
  font-family: var(--font-display);
  font-style: italic; font-size: 1.15rem;
  color: var(--text-bright);
  line-height: 1.3;
}
.phase-disc-item > summary .pd-toggle {
  flex-shrink: 0;
  width: 22px; height: 22px;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted);
  transition: transform .35s, color .25s;
  font-size: 1rem;
}
.phase-disc-item[open] > summary .pd-toggle { transform: rotate(180deg); color: var(--accent-gold); }
.phase-disc-item[open] > summary { background: rgba(201,169,97,.04); }
.phase-disc-item .pd-body {
  padding: 0 1.5rem 1.6rem 0;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text-soft);
  font-family: var(--font-body);
  animation: pd-body-in .45s ease-out;
}
.phase-disc-item .pd-body p { margin: 0 0 .8rem; }
.phase-disc-item .pd-body p:last-child { margin-bottom: 0; }
.phase-disc-item .pd-body .pd-script {
  font-family: var(--font-display);
  font-style: italic; font-size: 1.15rem;
  color: var(--text-bright); line-height: 1.55;
  max-width: 680px;
}
@keyframes pd-body-in {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.pd-listen-btn {
  display: inline-flex; align-items: center; gap: .55rem;
  margin-top: 1rem;
  background: transparent;
  border: 1px solid var(--accent-gold);
  color: var(--accent-gold);
  padding: .55rem 1.1rem;
  font-family: var(--font-mono);
  font-size: .62rem; letter-spacing: .2em;
  text-transform: uppercase;
  cursor: pointer;
  border-radius: 1px;
  transition: all .3s;
}
.pd-listen-btn:hover { background: rgba(201,169,97,.08); color: var(--text-bright); }
.pd-listen-btn svg { width: 12px; height: 12px; fill: currentColor; }
.pd-listen-btn.playing {
  background: rgba(201,169,97,.12);
  border-color: var(--text-bright);
  color: var(--text-bright);
}

@media (prefers-reduced-motion: reduce) {
  .phase-disc-item .pd-body { animation: none; }
  .phase-disc-item > summary .pd-toggle { transition: none; }
  .narr-pill.playing .narr-icon { animation: none; }
  .narr-pill.loading .narr-icon { animation: none; }
}

/* ---- Follow-up question block at section end --------------- */
.phase-followup {
  max-width: 920px;
  margin: 5rem auto 0;
  padding: 2.5rem 2rem 0;
  border-top: 1px dashed var(--line-soft);
  text-align: center;
}
.phase-followup h4 {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.4rem; font-weight: 500;
  color: var(--text-bright);
  margin: 0 0 1.6rem;
}
.followup-btns {
  display: flex; gap: .9rem;
  justify-content: center;
  flex-wrap: wrap;
}
.followup-btn {
  background: transparent;
  border: 1px solid var(--line-soft);
  color: var(--text-soft);
  padding: .85rem 1.4rem;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1rem;
  cursor: pointer;
  transition: all .3s;
  border-radius: 1px;
  max-width: 280px;
  text-align: left;
  position: relative;
  padding-right: 2.4rem;
}
.followup-btn::after {
  content: '→';
  position: absolute;
  right: 1.1rem; top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-style: normal;
  color: var(--accent-gold);
  opacity: .5;
  transition: all .25s;
}
.followup-btn:hover {
  background: rgba(201,169,97,.05);
  border-color: var(--accent-gold);
  color: var(--text-bright);
  transform: translateY(-2px);
}
.followup-btn:hover::after { opacity: 1; transform: translate(4px, -50%); }

@media (prefers-reduced-motion: reduce) {
  .followup-btn:hover { transform: none; }
  .followup-btn:hover::after { transform: translateY(-50%); }
}

/* ============================================================
   LIQUID GLASS UPGRADES  ·  apply to all floating UI surfaces
   Each rule augments existing component styles with translucency,
   specular edge highlight, depth-shadow, and refraction.
   ============================================================ */

/* SVG displacement filter for refraction (defined inline near </body> below).
   Chromium browsers use feDisplacementMap. Safari/Firefox fall back to
   standard backdrop-filter blur which is plenty. */

/* --- Narrator pill (bottom-left) --- */
.narr-pill {
  background: var(--lg-surface);
  backdrop-filter: var(--lg-backdrop);
  -webkit-backdrop-filter: var(--lg-backdrop);
  border: 1px solid var(--lg-border);
  box-shadow: var(--lg-shadow-rest);
  background-image:
    linear-gradient(135deg, var(--lg-edge-top) 0%, transparent 30%, transparent 70%, var(--lg-edge-soft) 100%),
    linear-gradient(var(--lg-surface), var(--lg-surface));
}
.narr-pill:hover {
  border-color: var(--lg-edge-gold);
  box-shadow: var(--lg-shadow-hover);
  background-image:
    linear-gradient(135deg, var(--lg-edge-top) 0%, transparent 28%, transparent 65%, var(--lg-edge-gold) 100%),
    linear-gradient(var(--lg-surface), var(--lg-surface));
  transform: translateY(-1px);
}
.narr-pill.playing {
  border-color: var(--lg-edge-gold);
  box-shadow: var(--lg-shadow-rest), 0 0 28px rgba(232,183,92,.18);
}

/* --- Narrator player bar (bottom-center) --- */
.narr-player {
  background: var(--lg-surface-strong);
  backdrop-filter: var(--lg-backdrop);
  -webkit-backdrop-filter: var(--lg-backdrop);
  border: 1px solid var(--lg-border);
  box-shadow: var(--lg-shadow-deep);
  border-radius: 14px;
  background-image:
    linear-gradient(180deg, var(--lg-edge-top) 0%, transparent 3%, transparent 97%, var(--lg-edge-soft) 100%),
    linear-gradient(var(--lg-surface-strong), var(--lg-surface-strong));
}

/* --- Ask-AI floating pill --- */
.ask-ai-fab {
  background: var(--lg-surface);
  backdrop-filter: var(--lg-backdrop);
  -webkit-backdrop-filter: var(--lg-backdrop);
  border: 1px solid var(--lg-border);
  box-shadow: var(--lg-shadow-rest);
}
.ask-ai-fab:hover {
  border-color: var(--lg-edge-gold);
  box-shadow: var(--lg-shadow-hover);
  transform: translateY(-1px);
  background: var(--lg-surface-strong);
}

/* --- Module nav (top floating bar) --- */
.module-nav {
  background: var(--lg-surface-strong) !important;
  backdrop-filter: var(--lg-backdrop) !important;
  -webkit-backdrop-filter: var(--lg-backdrop) !important;
  border-bottom: 1px solid var(--lg-border);
  box-shadow: 0 1px 0 0 var(--lg-edge-top) inset, 0 6px 24px rgba(0,0,0,.35);
}

/* --- Command palette modal --- */
.cmdp-modal, .cmdp-input-wrap, .cmdp-results-wrap {
  background: var(--lg-surface-strong) !important;
  backdrop-filter: var(--lg-backdrop);
  -webkit-backdrop-filter: var(--lg-backdrop);
}
.cmdp-modal {
  border: 1px solid var(--lg-border) !important;
  box-shadow: var(--lg-shadow-deep);
  border-radius: 14px;
}

/* --- Tutor drawer + Reaction Lab drawer headers (preserve scroll body) --- */
.tutor-drawer { background: var(--lg-surface-strong) !important; backdrop-filter: var(--lg-backdrop); -webkit-backdrop-filter: var(--lg-backdrop); border-left: 1px solid var(--lg-border); }
.rxn-sheet    { background: var(--lg-surface-strong) !important; backdrop-filter: var(--lg-backdrop); -webkit-backdrop-filter: var(--lg-backdrop); border-top:  1px solid var(--lg-border); box-shadow: 0 -1px 0 0 var(--lg-edge-top) inset, 0 -12px 40px rgba(0,0,0,.4); }
.tutor-header, .rxn-header {
  background: linear-gradient(180deg, var(--lg-edge-top) 0%, transparent 3%, transparent 100%) !important;
  border-bottom: 1px solid var(--lg-border);
}

/* --- Discover accordion summary rows (per-section glass touch) --- */
.phase-disc-item > summary {
  background: var(--lg-surface-clear);
  backdrop-filter: var(--lg-backdrop-lite);
  -webkit-backdrop-filter: var(--lg-backdrop-lite);
  transition: background .35s, box-shadow .35s;
}
.phase-disc-item > summary:hover {
  background: linear-gradient(180deg, var(--lg-edge-top) 0%, var(--lg-tint-warm) 100%);
  box-shadow: 0 1px 0 0 var(--lg-edge-top) inset;
}
.phase-disc-item[open] > summary {
  background: linear-gradient(180deg, var(--lg-edge-top) 0%, var(--lg-tint-warm) 90%);
  box-shadow: 0 1px 0 0 var(--lg-edge-top) inset, 0 -1px 0 0 rgba(201,169,97,.18);
}

/* --- Follow-up question buttons --- */
.followup-btn {
  background: var(--lg-surface-clear);
  backdrop-filter: var(--lg-backdrop-lite);
  -webkit-backdrop-filter: var(--lg-backdrop-lite);
  border: 1px solid var(--lg-border);
  box-shadow: var(--lg-shadow-rest);
  transition: all .4s cubic-bezier(.2,.8,.2,1);
}
.followup-btn:hover {
  background: var(--lg-tint-warm);
  border-color: var(--lg-edge-gold);
  box-shadow: var(--lg-shadow-hover);
}

/* --- Listen button inside accordions --- */
.pd-listen-btn {
  background: var(--lg-surface-clear);
  backdrop-filter: var(--lg-backdrop-lite);
  -webkit-backdrop-filter: var(--lg-backdrop-lite);
  box-shadow: 0 1px 0 0 var(--lg-edge-top) inset, 0 4px 14px rgba(0,0,0,.3);
}
.pd-listen-btn:hover {
  background: var(--lg-tint-warm);
  box-shadow: 0 1px 0 0 var(--lg-edge-top) inset, 0 8px 24px rgba(0,0,0,.45), 0 0 22px rgba(201,169,97,.2);
}

/* --- Progress rail · subtle ambient halo only, NO heavy pill --- */
.progress-rail {
  background: transparent !important;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border: none;
  /* Soft golden glow behind the rail axis — feels designed without containing the dots */
  box-shadow: 0 0 24px 4px rgba(201, 169, 97, 0.05);
}

/* --- Splash loader --- */
.splash-card, .module-nav-lang {
  background: var(--lg-surface-strong);
  backdrop-filter: var(--lg-backdrop);
  -webkit-backdrop-filter: var(--lg-backdrop);
  border: 1px solid var(--lg-border);
}

/* --- Glass refraction class — opt-in for selected hero overlays --- */
.lg-refract {
  position: relative;
}
.lg-refract::before {
  content: '';
  position: absolute; inset: 0;
  pointer-events: none;
  border-radius: inherit;
  background: linear-gradient(135deg,
    rgba(255,255,255,.10) 0%,
    transparent 30%,
    transparent 70%,
    rgba(255,255,255,.04) 100%
  );
  mix-blend-mode: overlay;
}

/* --- Specular sweep animation for primary hover surfaces ---
   Used as decorative shimmer crossing the surface every few seconds. */
.lg-shimmer {
  position: relative;
  overflow: hidden;
}
.lg-shimmer::after {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 60%; height: 100%;
  background: linear-gradient(90deg,
    transparent 0%,
    rgba(255,255,255,.06) 50%,
    transparent 100%
  );
  transform: skewX(-15deg);
  animation: lg-shimmer-sweep 6s ease-in-out infinite;
  pointer-events: none;
}
@keyframes lg-shimmer-sweep {
  0%, 70% { left: -100%; }
  85%     { left: 130%; }
  100%    { left: 130%; }
}
@media (prefers-reduced-motion: reduce) {
  .lg-shimmer::after { animation: none; display: none; }
}

/* Browsers that don't support backdrop-filter — graceful fallback */
@supports not (backdrop-filter: blur(10px)) {
  .narr-pill, .narr-player, .ask-ai-fab, .module-nav, .cmdp-modal,
  .tutor-drawer, .rxn-sheet, .phase-disc-item > summary,
  .followup-btn, .pd-listen-btn, .progress-rail {
    background: rgba(14, 14, 24, 0.92) !important;
  }
}

/* ============================================================
   v21 · 3D Orbital Cloud · Atomic Probability Density
   New top-card in the quantum section — Three.js point cloud
   sampled from |ψ|² of hydrogen-like wavefunctions.
   The card spans both grid columns (q-card-3d rule above).
   ============================================================ */

.q-card-3d {
  /* Subtle chromatic top-glow — sits *over* the q-card::before cyan tick */
  background:
    radial-gradient(ellipse 60% 40% at 50% 0%, hsla(130, 65%, 50%, 0.08), transparent 70%),
    linear-gradient(180deg, rgba(255,255,255,0.03) 0%, rgba(255,255,255,0.005) 100%);
}

/* Stage: holds the canvas + loading + hint overlay */
.q-orbital-stage {
  position: relative;
  width: 100%;
  height: 420px;
  margin: 0 0 1.4rem;
  border-radius: 4px;
  overflow: hidden;
  background:
    radial-gradient(ellipse 50% 50% at 50% 50%, rgba(155, 123, 216, 0.05), transparent 70%),
    rgba(5, 5, 12, 0.6);
  border: 1px solid rgba(155, 123, 216, 0.15);
  touch-action: none;             /* let our drag handler take pointer events */
}
@media (max-width: 880px) {
  .q-orbital-stage { height: 320px; }
}

.q-orbital-canvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
}
.q-orbital-canvas:active { cursor: grabbing; }

.q-orbital-loading {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: hsl(130, 50%, 75%);
  background: rgba(5, 5, 12, 0.85);
  backdrop-filter: blur(4px);
  transition: opacity 0.45s, visibility 0.45s;
}
.q-orbital-loading.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.qo-spinner {
  width: 14px; height: 14px;
  border: 1.5px solid hsla(130, 60%, 60%, 0.25);
  border-top-color: hsl(130, 75%, 60%);
  border-radius: 50%;
  animation: qo-spin 0.9s linear infinite;
}
@keyframes qo-spin {
  to { transform: rotate(360deg); }
}

.q-orbital-hint {
  position: absolute;
  bottom: 12px;
  right: 14px;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: hsla(130, 30%, 80%, 0.55);
  pointer-events: none;
  user-select: none;
}

/* Orbital toggle buttons — pill row */
.q-orbital-controls {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.2rem;
}
.q-orbital-btn {
  flex: 1 1 0;
  min-width: 90px;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(155, 123, 216, 0.2);
  border-radius: 5px;
  padding: 0.7rem 0.4rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.18rem;
  transition: all 0.22s ease;
  color: var(--text-soft);
}
.q-orbital-btn:hover {
  background: rgba(155, 123, 216, 0.07);
  border-color: rgba(155, 123, 216, 0.45);
  color: var(--text-bright);
}
.q-orbital-btn.active {
  background: linear-gradient(180deg, hsla(130, 60%, 50%, 0.18), hsla(130, 50%, 35%, 0.08));
  border-color: hsl(130, 60%, 55%);
  color: hsl(130, 70%, 85%);
  box-shadow:
    inset 0 1px 0 hsla(130, 70%, 70%, 0.25),
    0 0 14px hsla(130, 70%, 50%, 0.45);
}
.qo-btn-label {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-style: italic;
  font-weight: 500;
  line-height: 1;
}
.qo-btn-desc {
  font-family: var(--font-mono);
  font-size: 0.5rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.q-orbital-btn.active .qo-btn-desc { color: hsl(130, 50%, 75%); }

/* Info block under buttons */
.q-orbital-info {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}
.qo-detail {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--text-soft);
  font-style: italic;
  font-family: var(--font-display);
  font-weight: 400;
}
.qo-voice-hint {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: hsla(130, 50%, 70%, 0.75);
  padding-top: 0.45rem;
  border-top: 1px dashed rgba(155, 123, 216, 0.18);
}

/* ============================================================
   v24 · LEARNING PROGRESS
   Soft welcome-back pill on returning visits + brief golden
   flash on rail dots when a section is seen for the first time
   in the user's history. Reassuring, not gamified.
   ============================================================ */

.learning-welcome-pill {
  position: fixed;
  top: 80px;
  right: 22px;
  background: linear-gradient(135deg, rgba(20, 18, 30, 0.96), rgba(15, 13, 25, 0.96));
  border: 1px solid hsla(45, 60%, 55%, 0.4);
  border-radius: 24px;
  padding: 0.65rem 1.1rem 0.65rem 0.95rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-soft);
  display: flex;
  align-items: center;
  gap: 0.55rem;
  z-index: 200;
  opacity: 0;
  transform: translateX(28px);
  transition:
    opacity 0.45s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.5s cubic-bezier(0.34, 1.18, 0.5, 1);
  box-shadow:
    0 4px 18px rgba(0, 0, 0, 0.4),
    0 0 14px hsla(45, 70%, 55%, 0.18);
  backdrop-filter: blur(10px) saturate(140%);
  -webkit-backdrop-filter: blur(10px) saturate(140%);
  pointer-events: none;
  user-select: none;
}
.learning-welcome-pill.visible {
  opacity: 1;
  transform: translateX(0);
}
.lwp-icon {
  color: var(--accent-gold);
  font-size: 0.95rem;
  filter: drop-shadow(0 0 6px hsla(45, 80%, 55%, 0.7));
  animation: lwp-icon-pulse 2.2s ease-in-out infinite;
}
@keyframes lwp-icon-pulse {
  0%, 100% { filter: drop-shadow(0 0 6px hsla(45, 80%, 55%, 0.7)); }
  50%      { filter: drop-shadow(0 0 12px hsla(45, 90%, 65%, 0.95)); }
}
.lwp-text {
  white-space: nowrap;
  color: hsl(45, 30%, 80%);
}
@media (max-width: 480px) {
  .learning-welcome-pill {
    top: auto; bottom: 80px;
    right: 50%;
    transform: translateX(50%) translateY(20px);
    font-size: 0.56rem;
  }
  .learning-welcome-pill.visible {
    transform: translateX(50%) translateY(0);
  }
}

/* Side-rail dot "first-seen" flash — soft expanding gold ring via
   pure box-shadow animation so the tooltip ::after pseudo-element
   stays untouched. */
.prog-dot.first-seen {
  animation: first-seen-flash 1.8s cubic-bezier(0.16, 1, 0.3, 1) 1 forwards;
}
@keyframes first-seen-flash {
  0% {
    box-shadow:
      0 0 0 1px hsla(var(--dot-hue), 95%, 75%, 0.35),
      0 0 0 0 var(--accent-gold),
      0 0 12px hsla(var(--dot-hue), 95%, 65%, 0.85);
  }
  40% {
    box-shadow:
      0 0 0 1px hsla(var(--dot-hue), 95%, 75%, 0.6),
      0 0 0 6px hsla(45, 80%, 60%, 0.6),
      0 0 28px hsla(45, 90%, 70%, 0.5);
  }
  100% {
    box-shadow:
      0 0 0 1px hsla(var(--dot-hue), 95%, 75%, 0.35),
      0 0 0 24px hsla(45, 80%, 60%, 0),
      0 0 8px hsla(var(--dot-hue), 90%, 60%, 0.55);
  }
}

/* ============================================================
   v25 · LAB ATMOSPHERE LAYER
   Subtle environment tiles bleed through the back of the
   Reaction Lab sheet, anchoring the user in a "real lab"
   instead of a flat UI panel. Each tile is heavily darkened
   and blurred — readable only as warm-amber pools at the
   corners — never competing with the foreground UI.
   ============================================================ */
.rxn-ambient {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
  border-radius: inherit;
}
.rxn-amb {
  position: absolute;
  width: 280px;
  height: auto;
  opacity: 0.085;
  filter: saturate(0.85) brightness(0.95) blur(0.5px);
  mix-blend-mode: screen;
}
.rxn-amb-tl { top: -40px;  left: -40px;  transform: rotate(-3deg); }
.rxn-amb-tr { top: -60px;  right: -50px; transform: rotate(2deg);  width: 320px; }
.rxn-amb-bl { bottom: -50px; left: -30px; transform: rotate(2deg); }
.rxn-amb-br { bottom: -40px; right: -50px; transform: rotate(-2deg); width: 300px; }

@media (max-width: 900px) {
  .rxn-amb { width: 200px; opacity: 0.06; }
  .rxn-amb-tr, .rxn-amb-br { width: 220px; }
}

/* Ensure header / body content paint above the ambient layer */
.rxn-sheet > .rxn-header,
.rxn-sheet > .rxn-body { position: relative; z-index: 2; }

/* ============================================================
   v18.62 · Readability + Accent refinements (elements parity)
   ============================================================ */

/* --- A · Readability ---------------------------------------- */
/* Phone-info row spacing + name brightness */
.phone-info .pi-row { line-height: 1.5; }
.phone-info .pi-name {
  color: color-mix(in oklab, var(--text-bright) 95%, var(--accent-gold));
}
.phone-info .pi-role { color: color-mix(in oklab, var(--text-muted) 85%, var(--text-soft)); }

/* Body-info parity */
.body-info .bi-row { line-height: 1.5; }
.body-info .bi-name {
  color: color-mix(in oklab, var(--text-bright) 95%, var(--accent-gold));
}
.body-info .bi-role { color: color-mix(in oklab, var(--text-muted) 85%, var(--text-soft)); }

/* Mol-card story prose — slightly more line-height */
.mol-card .mol-story { line-height: 1.6 !important; }

/* --- B · Accent color pass ---------------------------------- */
/* Mol-cards — stronger hue-glow on hover */
.mol-card {
  transition: border-color 0.3s ease, transform 0.3s ease,
              box-shadow 0.4s ease, background-color 0.3s ease;
}
.mol-card:hover {
  border-color: color-mix(in oklab, var(--mol-color) 70%, transparent) !important;
  box-shadow: 0 12px 36px -12px color-mix(in oklab, var(--mol-color) 50%, transparent),
              0 0 0 1px color-mix(in oklab, var(--mol-color) 18%, transparent) inset;
  background: color-mix(in oklab, var(--mol-color) 4%, transparent) !important;
}
.mol-card:hover .mol-bond-glyph {
  filter: drop-shadow(0 0 8px color-mix(in oklab, var(--mol-color) 70%, transparent));
}

/* Phone-info row — soft hover tint via family color */
.phone-info .pi-row {
  transition: background-color 0.2s ease, transform 0.15s ease;
}
.phone-info .pi-row:hover {
  background: color-mix(in oklab, var(--row-color, var(--accent-gold)) 8%, transparent);
  transform: translateX(2px);
}

/* Body-info parity */
.body-info .bi-row {
  transition: background-color 0.2s ease, transform 0.15s ease;
}
.body-info .bi-row:hover {
  background: color-mix(in oklab, var(--row-color, var(--accent-gold)) 8%, transparent);
  transform: translateX(2px);
}

/* Roadmap cards — soft hue on hover (existing rule is plain border-color) */
.roadmap-card {
  transition: border-color 0.3s ease, transform 0.3s ease,
              box-shadow 0.4s ease, background-color 0.3s ease !important;
}
.roadmap-card:hover {
  background: color-mix(in oklab, var(--accent-gold) 4%, transparent) !important;
  box-shadow: 0 10px 28px -10px color-mix(in oklab, var(--accent-gold) 35%, transparent);
  transform: translateY(-2px);
}

/* Vox dialog turns — soft glow per speaker on hover */
.chx-art-vox-turn,
.vox-turn {
  transition: background-color 0.25s ease, box-shadow 0.3s ease;
}
.chx-art-vox-turn:hover,
.vox-turn:hover {
  background: color-mix(in oklab, var(--vox-color, var(--accent-gold)) 6%, transparent);
}

/* Reaction-Lab Go button — gradient sweep */
.rxn-go,
.rxn-error-retry {
  position: relative;
  overflow: hidden;
  transition: background-color 0.3s ease, transform 0.2s ease,
              box-shadow 0.3s ease;
}
.rxn-go::after,
.rxn-error-retry::after {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(105deg,
    transparent 0%,
    color-mix(in oklab, var(--accent-gold) 35%, transparent) 50%,
    transparent 100%);
  transition: left 0.6s ease;
  pointer-events: none;
}
.rxn-go:hover:not(:disabled)::after,
.rxn-error-retry:hover::after { left: 100%; }
.rxn-go:hover:not(:disabled),
.rxn-error-retry:hover {
  box-shadow: 0 8px 24px -8px color-mix(in oklab, var(--accent-gold) 50%, transparent);
  transform: translateY(-1px);
}

@media (prefers-reduced-motion: reduce) {
  .mol-card, .phone-info .pi-row, .body-info .bi-row,
  .roadmap-card, .chx-art-vox-turn, .vox-turn,
  .rxn-go, .rxn-error-retry { transition: none !important; }
  .rxn-go::after, .rxn-error-retry::after { transition: none !important; left: -100% !important; }
}

/* ============================================================================
 * v1.45 · 2030 GEN-Z LAYER (2026-05-21)
 *
 * Konsumiert /shared/chazon-shared.css v1.45 Tokens via [data-context="elements"]
 * (gesetzt auf <html>). Glow-strength + iridescent-palette werden auto-resolved.
 *
 * Strategie: REPLACE-mindset — keine neuen v27/v28-Files, sondern direkt
 * existing selectors anreichern: hero, .section, CTAs, module-cards bekommen
 * den Liquid-Glass + Phosphor-Breath Touch ohne ihre Identität zu verlieren.
 *
 * ELEMENTS = obsidian-darker, scharfe spectral-edges, glow-strength: 0.38.
 * ============================================================================ */

/* --- Hero: aurora-orb shines through, content sits on glass --- */
.hero {
  position: relative;
  isolation: isolate;
}
.hero::before {
  content: '';
  position: absolute;
  inset: -20% -10% -10%;
  z-index: -1;
  background:
    radial-gradient(ellipse at 22% 30%, color-mix(in oklab, var(--accent-gold, #c9a961) 14%, transparent), transparent 50%),
    radial-gradient(ellipse at 80% 65%, color-mix(in oklab, #5dade2 12%, transparent), transparent 55%);
  filter: blur(20px);
  pointer-events: none;
  animation: chx-phosphor-breath calc(var(--chx-breath-duration, 6.5s) * 1.4) var(--chx-ease-breath, cubic-bezier(.4,0,.2,1)) infinite;
}
.hero h1 em {
  /* Variable-font breathing — gold-leaf with subtle weight pulse on hover */
  transition: font-variation-settings .6s var(--chx-ease-breath, cubic-bezier(.4,0,.2,1));
}
.hero:hover h1 em {
  font-variation-settings: 'wght' 600;
}

/* --- Module-nav: liquid-glass sticky bar --- */
.module-nav {
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  background: color-mix(in oklab, var(--bg-deep, #07070f) 72%, transparent) !important;
  border-bottom: 1px solid var(--chx-glass-edge, color-mix(in oklab, var(--accent-gold, #c9a961) 22%, transparent));
}
.module-nav-btn:hover {
  animation: chx-pulse-halo var(--chx-pulse-duration, 2.6s) ease-in-out infinite;
}

/* --- Section-bookmark + module-nav-btn: bookmarked = pulse-halo permanent --- */
.module-nav-btn.bookmarked {
  animation: chx-pulse-halo calc(var(--chx-pulse-duration, 2.6s) * 1.4) ease-in-out infinite;
}

/* --- Reaction-button (CTA primary): pulse-halo on hover --- */
.rxn-go:hover:not(:disabled),
.rxn-error-retry:hover {
  animation: chx-pulse-halo var(--chx-pulse-duration, 2.6s) ease-in-out infinite;
}

/* --- Lab-cards / Mol-cards: iridescent edge on hover, subtle --- */
.mol-card,
.roadmap-card {
  position: relative;
  isolation: isolate;
  transition: transform .4s var(--chx-ease-breath, cubic-bezier(.4,0,.2,1)),
              box-shadow .4s var(--chx-ease-breath, cubic-bezier(.4,0,.2,1));
}
.mol-card::after,
.roadmap-card::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: var(--chx-iridescent,
    conic-gradient(from 0deg, var(--accent-gold, #c9a961), #5dade2, var(--accent-copper, #b87333), var(--accent-gold, #c9a961)));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
          mask-composite: exclude;
  opacity: 0;
  transition: opacity .4s var(--chx-ease-breath, cubic-bezier(.4,0,.2,1));
  pointer-events: none;
  z-index: 1;
}
.mol-card:hover::after,
.roadmap-card:hover::after {
  opacity: 0.7;
  animation: chx-iridescent-rotate var(--chx-iridescent-duration, 14s) linear infinite;
}

/* --- Reduced-motion guard v1.45 --- */
@media (prefers-reduced-motion: reduce) {
  .hero::before,
  .module-nav-btn:hover,
  .module-nav-btn.bookmarked,
  .rxn-go:hover:not(:disabled),
  .rxn-error-retry:hover,
  .mol-card:hover::after,
  .roadmap-card:hover::after {
    animation: none !important;
  }
}