/**
 * elements-v33.css · PSE-Trend-Heatmap
 * ============================================================
 * KI-driven trend-map UI direkt unter dem Periodensystem.
 * Aubergine-grounded mit Mendelejew-gold-Akzenten + magenta-hot
 * für die heatmap-color-warp.
 */

.pt-trend {
  --pt-hue: var(--accent-gold, #c9a961);
  --pt-hue-soft: color-mix(in oklab, var(--pt-hue) 18%, transparent);
  --pt-hue-glow: color-mix(in oklab, var(--pt-hue) 45%, transparent);
  --pt-hot: #d194d4;
  --pt-cold: #8a8a96;
  position: relative;
  max-width: 880px;
  margin: 2.4rem auto;
  padding: 1.8rem 1.6rem 1.4rem;
  background:
    radial-gradient(ellipse at top left,  var(--pt-hue-soft) 0%, transparent 55%),
    radial-gradient(ellipse at bottom right, color-mix(in oklab, var(--pt-hot) 5%, transparent) 0%, transparent 55%),
    color-mix(in oklab, var(--base-deep, #1a121a) 88%, transparent);
  border: 1px solid color-mix(in oklab, var(--pt-hue) 22%, var(--base-line, rgba(255,255,255,.08)));
  border-radius: 14px;
}
.pt-trend::before {
  content: '';
  position: absolute;
  inset: 6px;
  border: 0.5px solid color-mix(in oklab, var(--pt-hue) 14%, transparent);
  border-radius: 10px;
  pointer-events: none;
}
.pt-trend.is-streaming::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--pt-hue) 50%, transparent 100%);
  background-size: 200% 100%;
  animation: pt-trend-shimmer 1.6s linear infinite;
  border-radius: 14px 14px 0 0;
}
@keyframes pt-trend-shimmer {
  0%   { background-position: 100% 0; }
  100% { background-position: -100% 0; }
}

.pt-trend-head {
  display: flex;
  align-items: flex-start;
  gap: .8rem;
  margin-bottom: 1.1rem;
}
.pt-trend-icon {
  font-size: 1.4rem;
  color: var(--pt-hue);
  filter: drop-shadow(0 2px 6px var(--pt-hue-glow));
}
.pt-trend-head-text { flex: 1; }
.pt-trend-tag {
  font: 500 .66rem/1 'JetBrains Mono', monospace;
  letter-spacing: .18em;
  color: color-mix(in oklab, var(--pt-hue) 80%, transparent);
  margin-bottom: .4rem;
}
.pt-trend-h {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-weight: 500;
  font-size: clamp(1.25rem, 2vw, 1.6rem);
  color: #f4ecf2;
  margin: 0 0 .4rem;
  line-height: 1.2;
}
.pt-trend-lede {
  font-size: .92rem;
  line-height: 1.55;
  color: rgba(255, 255, 255, .82);
  margin: 0;
}

.pt-trend-starters {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: 1rem;
}
.pt-trend-starter {
  appearance: none;
  font: inherit;
  font-size: .82rem;
  background: color-mix(in oklab, #0c0810 80%, var(--pt-hue) 8%);
  border: 1px solid color-mix(in oklab, var(--pt-hue) 28%, rgba(255,255,255,.08));
  color: #f4ecf2;
  padding: .45rem .8rem;
  border-radius: 999px;
  cursor: pointer;
  transition: transform .2s, background .2s, box-shadow .2s;
}
.pt-trend-starter:hover {
  transform: translateY(-1px);
  background: color-mix(in oklab, #0c0810 60%, var(--pt-hue) 18%);
  box-shadow: 0 4px 14px var(--pt-hue-glow);
}
.pt-trend-starter:focus-visible {
  outline: 2px solid var(--pt-hue);
  outline-offset: 2px;
}

.pt-trend-form {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
  margin-bottom: .8rem;
}
.pt-trend-input {
  flex: 1;
  min-width: 0;
  appearance: none;
  font: inherit;
  font-size: .94rem;
  padding: .7rem .9rem;
  background: color-mix(in oklab, #0c0810 75%, transparent);
  border: 1px solid color-mix(in oklab, var(--pt-hue) 18%, rgba(255,255,255,.08));
  color: #f4ecf2;
  border-radius: 999px;
  min-height: 44px;
  transition: border-color .2s, box-shadow .2s;
}
.pt-trend-input::placeholder { color: rgba(255, 255, 255, .5); }
.pt-trend-input:focus {
  outline: none;
  border-color: var(--pt-hue);
  box-shadow: 0 0 0 3px var(--pt-hue-soft);
}
.pt-trend-input:disabled { opacity: .55; cursor: not-allowed; }
.pt-trend-submit {
  appearance: none;
  font: 500 .88rem/1.2 inherit;
  letter-spacing: .04em;
  padding: 0 1.2rem;
  background: linear-gradient(135deg,
    var(--pt-hue) 0%,
    color-mix(in oklab, var(--pt-hue) 50%, var(--pt-hot)) 100%);
  color: #1a121a;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  min-height: 44px;
  min-width: 130px;
  transition: transform .2s, box-shadow .2s;
}
.pt-trend-submit:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px var(--pt-hue-glow);
}
.pt-trend-submit:disabled { opacity: .5; cursor: not-allowed; transform: none; box-shadow: none; }
.pt-trend-reset {
  appearance: none;
  font: 500 .78rem/1 'JetBrains Mono', monospace;
  letter-spacing: .08em;
  background: transparent;
  border: 1px solid transparent;
  color: rgba(255, 255, 255, .5);
  padding: 0 .6rem;
  min-height: 44px;
  cursor: pointer;
}
.pt-trend-reset:hover { color: var(--pt-hue); }

.pt-trend-readout {
  display: flex;
  flex-direction: column;
  gap: .2rem;
  margin: .4rem 0 .8rem;
  min-height: 1.2rem;
}
.pt-trend-axis {
  font: 500 .82rem/1.3 'JetBrains Mono', monospace;
  color: var(--pt-hue);
  letter-spacing: .04em;
}
.pt-trend-caption {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: .94rem;
  line-height: 1.5;
  color: rgba(255, 255, 255, .82);
}

.pt-trend-legend {
  display: flex;
  align-items: center;
  gap: .55rem;
  font: 500 .68rem/1 'JetBrains Mono', monospace;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .5);
}
.pt-trend-leg-bar {
  flex: 1;
  height: 6px;
  background: linear-gradient(90deg,
    var(--pt-cold) 0%,
    var(--pt-hue) 50%,
    var(--pt-hot) 100%);
  border-radius: 999px;
  opacity: .85;
}

/* Cell pop-in animation when heatmap-value lands */
.element.pse-trend-pop {
  animation: pse-trend-pop .42s cubic-bezier(.22, 1, .36, 1);
}
@keyframes pse-trend-pop {
  0%   { transform: scale(1);    filter: brightness(1.4); }
  60%  { transform: scale(1.04); filter: brightness(1.18); }
  100% { transform: scale(1);    filter: brightness(1); }
}

@media (max-width: 600px) {
  .pt-trend { padding: 1.4rem 1.2rem; }
  .pt-trend-form { flex-direction: column; }
  .pt-trend-submit, .pt-trend-input, .pt-trend-reset { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  .pt-trend.is-streaming::after { animation: none; }
  .element.pse-trend-pop { animation: none; }
  .pt-trend-starter, .pt-trend-submit { transition: none; }
}