.accent-wine {
  color: var(--wine);
}

:root {
  --bg: #f7efe2;
  --paper: rgba(255, 250, 243, 0.9);
  --paper-strong: #fffaf3;
  --ink: #221814;
  --muted: #65574c;
  --wine: #8c2f33;
  --wine-deep: #5a1d20;
  --gold: #ca9853;
  --gold-soft: #f1d1a1;
  --teal: #215b66;
  --line: rgba(34, 24, 20, 0.12);
  --shadow: 0 22px 56px rgba(88, 40, 22, 0.12);
  --shadow-soft: 0 12px 30px rgba(88, 40, 22, 0.08);
  --radius-xl: 34px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 120px;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Lora", "LXGW WenKai", serif;
  background:
    radial-gradient(circle at top left, rgba(241, 209, 161, 0.78), transparent 28%),
    radial-gradient(circle at 85% 18%, rgba(140, 47, 51, 0.16), transparent 24%),
    linear-gradient(180deg, #fbf6ef 0%, var(--bg) 100%);
}

body::before,
body::after {
  content: "";
  position: fixed;
  top: 0;
  bottom: 0;
  width: clamp(30px, 4vw, 70px);
  background:
    linear-gradient(180deg, rgba(140, 47, 51, 0.3), rgba(90, 29, 32, 0.4)),
    repeating-linear-gradient(90deg,
      rgba(255, 255, 255, 0.05) 0,
      rgba(255, 255, 255, 0.05) 14px,
      transparent 14px,
      transparent 28px);
  opacity: 0.35;
  pointer-events: none;
}

body::before {
  left: 0;
}

body::after {
  right: 0;
}

.page-shell {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 16px;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
  margin: 18px 0 20px;
  padding: 14px 18px;
  border: 1px solid rgba(255, 255, 255, 0.56);
  border-radius: 999px;
  background: rgba(255, 249, 241, 0.78);
  backdrop-filter: blur(14px);
  box-shadow: 0 12px 28px rgba(69, 34, 17, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
}

.brand__mark {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(145deg, var(--wine), var(--wine-deep));
  color: #fff8ef;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.brand__text {
  display: grid;
  gap: 2px;
}

.brand__text strong {
  font-family: "Cormorant Garamond", "LXGW WenKai", serif;
  font-size: 1rem;
}

.brand__text small {
  color: var(--muted);
  font-size: 0.8rem;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.site-nav a,
.header-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none;
  transition: color 180ms ease, background 180ms ease, transform 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.header-link:hover,
.header-link:focus-visible,
.site-nav a.is-active {
  color: var(--wine);
  background: rgba(140, 47, 51, 0.08);
  transform: translateY(-1px);
}

.header-link {
  border: 1px solid rgba(140, 47, 51, 0.14);
  background: rgba(255, 255, 255, 0.46);
}

/* ── Hero banner (lightweight top) ── */

.hero-banner {
  padding: 56px 0 40px;
  text-align: center;
}

.hero-banner h1 {
  margin: 12px 0 0;
  font-family: "Cormorant Garamond", "LXGW WenKai", serif;
  font-size: clamp(2.6rem, 5.6vw, 4.6rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.hero-banner__lede {
  max-width: 72ch;
  margin: 18px auto 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.85;
}

.hero-banner__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 28px;
}

/* ── Hero Demo (spotlight section) ── */

.hero-demo {
  position: relative;
  padding: 80px 36px 64px;
  border-radius: var(--radius-xl);
  background:
    radial-gradient(ellipse 50% 60% at 50% 20%, rgba(202, 152, 83, 0.08), transparent 70%),
    linear-gradient(180deg, #120a08 0%, #1a0f0d 30%, #241612 60%, #1a0f0d 100%);
  color: #f5ede4;
  overflow: hidden;
}

/* ── Spotlight from above ── */
.hero-demo::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 40% 50% at 50% 15%, rgba(255, 245, 230, 0.06), transparent),
    radial-gradient(circle at 50% 0%, rgba(202, 152, 83, 0.1), transparent 40%);
  pointer-events: none;
  z-index: 1;
}

/* ── Top valance + side curtains ── */
.hero-demo__curtain {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;

  background:
    /* top valance: dark wine band fading down */
    linear-gradient(180deg,
      rgba(72, 18, 22, 0.95) 0%,
      rgba(90, 29, 32, 0.7) 28px,
      rgba(90, 29, 32, 0.3) 48px,
      transparent 72px),
    /* top scallop: repeating arches */
    radial-gradient(ellipse 60px 24px at 50% 52px, rgba(72, 18, 22, 0.6) 50%, transparent 51%) 0 0 / 60px 24px repeat-x,
    /* left curtain: vertical drape */
    linear-gradient(90deg,
      rgba(72, 18, 22, 0.8) 0%,
      rgba(90, 29, 32, 0.45) 16px,
      rgba(90, 29, 32, 0.15) 32px,
      transparent 56px),
    /* left curtain folds */
    repeating-linear-gradient(90deg,
      rgba(50, 12, 14, 0.12) 0px,
      transparent 3px,
      transparent 10px,
      rgba(50, 12, 14, 0.08) 13px) 0 0 / 56px 100% no-repeat,
    /* right curtain: vertical drape */
    linear-gradient(270deg,
      rgba(72, 18, 22, 0.8) 0%,
      rgba(90, 29, 32, 0.45) 16px,
      rgba(90, 29, 32, 0.15) 32px,
      transparent 56px),
    /* right curtain folds */
    repeating-linear-gradient(270deg,
      rgba(50, 12, 14, 0.12) 0px,
      transparent 3px,
      transparent 10px,
      rgba(50, 12, 14, 0.08) 13px) right 0 / 56px 100% no-repeat;
}

/* ── Valance golden trim line ── */
.hero-demo__curtain::before {
  content: "";
  position: absolute;
  top: 50px;
  left: 40px;
  right: 40px;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(202, 152, 83, 0.3) 20%, rgba(202, 152, 83, 0.4) 50%, rgba(202, 152, 83, 0.3) 80%, transparent);
  border-radius: 1px;
}

/* ── Curtain tie-backs (decorative knots) ── */
.hero-demo__curtain::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  background:
    /* left tie-back */
    radial-gradient(circle at 36px 35%, rgba(202, 152, 83, 0.2) 0%, rgba(202, 152, 83, 0.08) 6px, transparent 12px),
    /* right tie-back */
    radial-gradient(circle at calc(100% - 36px) 35%, rgba(202, 152, 83, 0.2) 0%, rgba(202, 152, 83, 0.08) 6px, transparent 12px);
}

/* ── Stage floor ── */
.hero-demo__stage {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 48px;
  pointer-events: none;
  z-index: 2;
  background:
    /* wood grain texture */
    repeating-linear-gradient(90deg,
      rgba(255, 255, 255, 0.02) 0px,
      transparent 1px,
      transparent 18px,
      rgba(255, 255, 255, 0.015) 19px) 0 0,
    /* main floor gradient */
    linear-gradient(180deg,
      transparent 0%,
      rgba(42, 24, 16, 0.5) 15%,
      rgba(58, 34, 22, 0.8) 50%,
      rgba(48, 28, 18, 0.9) 100%);
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
}

/* floor front edge highlight */
.hero-demo__stage::before {
  content: "";
  position: absolute;
  top: 0;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(202, 152, 83, 0.25) 30%, rgba(202, 152, 83, 0.3) 50%, rgba(202, 152, 83, 0.25) 70%, transparent);
}

/* floor footlights glow */
.hero-demo__stage::after {
  content: "";
  position: absolute;
  top: -16px;
  left: 15%;
  right: 15%;
  height: 16px;
  background: radial-gradient(ellipse at 50% 100%, rgba(202, 152, 83, 0.06), transparent 70%);
}

.hero-demo__inner {
  position: relative;
  z-index: 3;
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  gap: 20px;
  text-align: center;
}

.hero-demo__eyebrow {
  margin: 0;
  color: var(--gold-soft);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero-demo__title {
  margin: 0;
  font-family: "Cormorant Garamond", "LXGW WenKai", serif;
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: #fff7ee;
}

.hero-demo__lede {
  max-width: 80ch;
  margin: 0 auto;
  color: rgba(245, 237, 228, 0.65);
  font-size: 0.98rem;
  line-height: 1.8;
}

.hero-demo__player {
  max-width: 780px;
  margin: 12px auto 0;
  width: 100%;
}

.hero-demo__player .demo-audio__meta {
  display: none;
}

.hero-demo__player .demo-audio__shell {
  border-color: rgba(202, 152, 83, 0.2);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.04), rgba(202, 152, 83, 0.06));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.hero-demo__player .demo-audio__head strong {
  color: #f5ede4;
}

.hero-demo__player .demo-audio__status {
  background: rgba(202, 152, 83, 0.18);
  color: var(--gold-soft);
}

.hero-demo__player .demo-audio__item {
  border-color: rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.05);
}

.hero-demo__player .demo-audio__title {
  color: #f5ede4;
}

.hero-demo__player .demo-audio__kind {
  background: rgba(202, 152, 83, 0.15);
  color: var(--gold-soft);
}

.hero-demo__player .demo-audio__sub {
  color: rgba(245, 237, 228, 0.55);
}

.hero-demo__player .demo-audio__feature {
  background: rgba(255, 255, 255, 0.05);
}

.hero-demo__player .demo-audio__detail-label {
  color: var(--gold-soft);
}

.hero-demo__player .demo-audio__feature-body {
  color: rgba(245, 237, 228, 0.75);
}

.hero-demo__player .audio-player {
  background: rgba(255, 255, 255, 0.06);
}

.hero-demo__player .audio-player__btn {
  color: var(--gold-soft);
}

.hero-demo__player .audio-player__time {
  color: rgba(245, 237, 228, 0.5);
}

.hero-demo__player .audio-player__dl {
  color: rgba(245, 237, 228, 0.4);
}

.hero-demo__player .audio-player__dl:hover {
  color: var(--gold-soft);
}

.hero-demo__player .audio-player__fill {
  background: linear-gradient(90deg, var(--gold), var(--gold-soft));
}

.hero-demo__player .audio-player__track {
  background: rgba(255, 255, 255, 0.1);
}

.hero-demo__player .audio-player__buffered {
  background: rgba(255, 255, 255, 0.08);
}

.hero-demo__player .audio-player__seek {
  background: transparent;
}

.hero-demo__player .audio-player__btn {
  background: linear-gradient(135deg, var(--gold), #b8873f);
  color: #1a0f0d;
}

.hero-demo__player .audio-player__btn:hover {
  box-shadow: 0 4px 16px rgba(202, 152, 83, 0.35);
}

.hero-demo__player .audio-player__seek::-webkit-slider-thumb {
  background: var(--gold);
  border-color: rgba(255, 255, 255, 0.6);
}

.hero-demo__player .audio-player__seek::-moz-range-thumb {
  background: var(--gold);
  border-color: rgba(255, 255, 255, 0.6);
}

.hero-demo__player .demo-audio__prompt summary {
  background: rgba(202, 152, 83, 0.15);
  color: var(--gold-soft);
}

.hero-demo__player .demo-audio__prompt pre {
  background: rgba(255, 255, 255, 0.05);
  color: rgba(245, 237, 228, 0.8);
}

.hero-demo__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 8px auto 0;
  padding: 10px 22px;
  border: 1px solid rgba(202, 152, 83, 0.25);
  border-radius: 999px;
  background: transparent;
  color: var(--gold-soft);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: background 240ms ease, border-color 240ms ease;
}

.hero-demo__cta:hover {
  background: rgba(202, 152, 83, 0.12);
  border-color: rgba(202, 152, 83, 0.4);
}

.hero-demo__cta svg {
  animation: hero-demo-bounce 2s ease-in-out infinite;
}

@keyframes hero-demo-bounce {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(3px);
  }
}

@media (max-width: 700px) {
  .hero-demo {
    padding: 64px 18px 52px;
  }

  .hero-demo__player {
    max-width: 100%;
  }
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.98fr);
  gap: 34px;
  align-items: start;
  padding: 34px 0 28px;
}

.eyebrow,
.hero__quote-label,
.poster-card__label,
.console-card__label,
.principle-tile__label,
.comparison-card__label,
.proof-card__label,
.program-sidebar__label,
.program-card__type,
.prompt-card__label,
.annotation-card__label,
.control-node__label,
.release-card__label,
.source-panel__label {
  margin: 0 0 10px;
  color: var(--wine);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero h1,
.hero h2,
.hero h3,
.section-heading h2,
.comparison-card h3,
.proof-card h3,
.program-sidebar h3,
.program-card h3,
.prompt-card h3,
.annotation-card h3,
.control-node h3,
.release-card h3,
.source-panel h3,
.principle-tile h2 {
  font-family: "Cormorant Garamond", "LXGW WenKai", serif;
}

.hero h1 {
  margin: 0;
  max-width: 12ch;
  font-size: clamp(3rem, 6vw, 5.3rem);
  line-height: 1.03;
  letter-spacing: -0.04em;
}

.hero__lede {
  max-width: 62ch;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 1.06rem;
  line-height: 1.9;
}

.hero__quote {
  margin-top: 24px;
  padding: 20px 22px;
  border: 1px solid rgba(140, 47, 51, 0.12);
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(255, 252, 247, 0.95), rgba(241, 209, 161, 0.18));
  box-shadow: var(--shadow-soft);
}

.hero__quote p:last-child {
  margin: 0;
  line-height: 1.9;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.hero__copy {
  display: grid;
  align-content: start;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button--primary {
  background: linear-gradient(135deg, var(--wine), var(--wine-deep));
  color: #fffaf3;
  box-shadow: 0 12px 28px rgba(140, 47, 51, 0.22);
}

.button--secondary {
  border: 1px solid rgba(140, 47, 51, 0.18);
  background: rgba(255, 249, 241, 0.72);
  color: var(--wine);
}

.hero__metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.hero__metrics li {
  padding: 18px 16px;
  border: 1px solid rgba(255, 255, 255, 0.68);
  border-radius: var(--radius-md);
  background: rgba(255, 251, 244, 0.72);
  box-shadow: var(--shadow-soft);
}

.hero__metrics strong {
  display: block;
  margin-bottom: 6px;
  color: var(--wine);
  font-size: 1.5rem;
}

.hero__metrics span {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

.hero__visual {
  position: relative;
  display: grid;
  gap: 18px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.54);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at top center, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0) 40%),
    linear-gradient(180deg, rgba(241, 209, 161, 0.28), rgba(255, 250, 243, 0.82));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero__visual::before {
  content: "";
  position: absolute;
  inset: 12px;
  border: 1px dashed rgba(140, 47, 51, 0.18);
  border-radius: calc(var(--radius-xl) - 8px);
}

.hero__visual::after {
  content: "";
  position: absolute;
  left: -8%;
  right: -8%;
  bottom: -20%;
  height: 32%;
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 0%, rgba(34, 24, 20, 0.16), rgba(34, 24, 20, 0) 58%),
    linear-gradient(180deg, rgba(202, 152, 83, 0.44), rgba(202, 152, 83, 0));
  filter: blur(18px);
}

.poster-card,
.console-card,
.principle-tile,
.comparison-card,
.proof-card,
.program-sidebar,
.program-card,
.prompt-card,
.annotation-card,
.control-node,
.release-card,
.source-panel {
  position: relative;
  z-index: 1;
  border: 1px solid rgba(255, 255, 255, 0.64);
  border-radius: var(--radius-lg);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.poster-card {
  padding: 24px;
  background: linear-gradient(135deg, rgba(104, 30, 33, 0.96), rgba(140, 47, 51, 0.92));
  color: #fff8f0;
}

.poster-card--hero {
  margin-top: 32px;
}

.poster-card__label {
  color: rgba(255, 248, 240, 0.82);
}

.poster-card h2 {
  margin: 0;
  max-width: 13ch;
  font-size: 2.2rem;
  line-height: 1.16;
}

.poster-card__copy {
  margin: 16px 0 0;
  color: rgba(255, 248, 240, 0.88);
  line-height: 1.82;
}

.poster-card__bullets {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
  padding-left: 18px;
}

.poster-card--hero h2 {
  max-width: 11ch;
  font-size: 2rem;
}

.console-card {
  padding: 22px;
}

.console-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.console-card__label {
  margin: 0;
}

.console-card__badge {
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(140, 47, 51, 0.08);
  color: var(--wine);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.console-card h3 {
  margin: 10px 0 10px;
  font-size: 1.48rem;
}

.console-card__copy {
  margin: 0 0 14px;
  color: var(--muted);
  line-height: 1.76;
}

.principles-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  padding: 8px 0 58px;
}

.principle-tile {
  padding: 22px;
}

.principle-tile h2 {
  margin: 0 0 10px;
  font-size: 1.54rem;
}

.principle-tile p:last-child {
  margin: 0;
  color: var(--muted);
  line-height: 1.82;
}

.section {
  padding: 20px 0 78px;
}

.section--dark {
  padding: 36px 28px 78px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at top center, rgba(255, 255, 255, 0.08), transparent 34%),
    linear-gradient(145deg, rgba(90, 29, 32, 0.98), rgba(46, 18, 20, 0.98));
  box-shadow: var(--shadow);
}

.section-heading {
  margin-bottom: 24px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(2rem, 3.8vw, 3.3rem);
  line-height: 1.15;
}

.section-heading p:last-child {
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.86;
}

.section-heading--light h2,
.section-heading--light p:last-child {
  color: #fff7ee;
}

.section-heading--light .eyebrow {
  color: var(--gold-soft);
}

.comparison-card,
.proof-card,
.program-sidebar,
.program-card,
.release-card {
  padding: 24px;
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.comparison-card h3 {
  margin: 0 0 12px;
  font-size: 1.48rem;
}

.comparison-card ul,
.program-card__list,
.annotation-list,
.control-node__body ul,
.release-card ul,
.program-sidebar__list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 18px;
}

.comparison-card--baseline {
  background: linear-gradient(135deg, rgba(255, 251, 244, 0.9), rgba(238, 227, 212, 0.7));
}

.comparison-card--ats {
  background: linear-gradient(135deg, rgba(255, 251, 244, 0.94), rgba(241, 209, 161, 0.24));
  border-color: rgba(140, 47, 51, 0.16);
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 22px;
}

.proof-card h3 {
  margin: 0 0 10px;
  font-size: 1.4rem;
}

.proof-card p:last-child {
  margin: 0;
  color: var(--muted);
  line-height: 1.78;
}

.program-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.44fr) minmax(0, 1.56fr);
  gap: 18px;
  align-items: start;
}

.program-sidebar {
  position: sticky;
  top: 106px;
  background: linear-gradient(135deg, rgba(255, 248, 241, 0.96), rgba(241, 209, 161, 0.14));
}

.program-sidebar h3 {
  margin: 0 0 12px;
  font-size: 1.5rem;
  line-height: 1.36;
}

.program-layout+.program-layout {
  margin-top: 28px;
}

.program-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  align-items: start;
}

.program-card {
  display: grid;
  gap: 14px;
  align-self: start;
}

.program-card--feature {
  background: linear-gradient(135deg, rgba(255, 251, 244, 0.94), rgba(241, 209, 161, 0.2));
}

.program-card h3 {
  margin: 0;
  font-size: 1.58rem;
  line-height: 1.34;
}

.program-card__summary {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.program-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.program-card__tags span {
  padding: 7px 11px;
  border: 1px solid rgba(34, 24, 20, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.66);
  color: var(--ink);
  font-size: 0.84rem;
}

.prompt-card,
.annotation-card {
  padding: 24px;
  background: rgba(255, 248, 241, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: none;
}

.prompt-card__label,
.annotation-card__label {
  color: var(--gold-soft);
}

.prompt-card h3,
.annotation-card h3 {
  margin: 0 0 12px;
  color: #fff7ee;
  font-size: 1.52rem;
}

.script-room-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.92fr);
  gap: 18px;
}

.prompt-card__code {
  margin: 0;
  padding: 18px;
  overflow: auto;
  border-radius: 18px;
  background: rgba(17, 12, 10, 0.46);
  color: #fff6ea;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 0.96rem;
  line-height: 1.8;
}

.annotation-list {
  color: #fff7ee;
}

.annotation-list strong {
  color: var(--gold-soft);
}

.script-room__footnote {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 247, 238, 0.8);
  line-height: 1.75;
}

.control-timeline {
  display: grid;
  gap: 18px;
}

.control-node {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 18px;
  padding: 20px;
}

.control-node__index {
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 4px;
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(140, 47, 51, 0.12), rgba(202, 152, 83, 0.22));
  color: var(--wine);
}

.control-node__number {
  font-family: "Cormorant Garamond", "LXGW WenKai", serif;
  font-size: 2rem;
  font-weight: 900;
}

.control-node__name {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.control-node__body h3 {
  margin: 2px 0 10px;
  font-size: 1.5rem;
}

.control-node__body p {
  margin: 0;
  color: var(--muted);
  line-height: 1.82;
}

.release-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.release-card li strong {
  color: var(--wine);
}

.release-card h3,
.source-panel h3 {
  margin: 0 0 12px;
  font-size: 1.48rem;
}

.source-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 22px;
  padding: 24px;
}

.closing-note {
  position: relative;
  z-index: 1;
  margin-top: 40px;
  padding: 36px 32px;
  border: 1px solid rgba(140, 47, 51, 0.16);
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, rgba(255, 251, 244, 0.96), rgba(241, 209, 161, 0.18));
  box-shadow: var(--shadow);
}

.closing-note h3 {
  margin: 0 0 20px;
  font-family: "Cormorant Garamond", "LXGW WenKai", serif;
  font-size: 1.6rem;
  line-height: 1.36;
}

.closing-note__body p {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.88;
}

.closing-note__body p:last-child {
  margin-bottom: 0;
}

.closing-note__vision {
  margin-top: 8px;
  padding: 18px 22px;
  border-left: 3px solid var(--wine);
  border-radius: 0 14px 14px 0;
  background: rgba(140, 47, 51, 0.06);
  color: var(--ink) !important;
  font-family: "Cormorant Garamond", "LXGW WenKai", serif;
  font-size: 1.1rem !important;
  font-weight: 700;
  line-height: 1.72 !important;
}

.closing-note__cta {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: 24px;
  padding: 20px 24px;
  border: 1px solid rgba(140, 47, 51, 0.16);
  border-radius: var(--radius-xl);
  background: rgba(140, 47, 51, 0.06);
}

.closing-note__cta p {
  margin: 0;
  font-family: "Cormorant Garamond", "LXGW WenKai", serif;
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--ink);
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  padding: 10px 22px;
  border-radius: 10px;
  background: linear-gradient(145deg, var(--wine), var(--wine-deep));
  color: #fff;
  font-family: "LXGW WenKai", sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
  box-shadow: 0 2px 8px rgba(140, 47, 51, 0.18);
  transition: transform 0.2s, box-shadow 0.2s;
}

.cta-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(140, 47, 51, 0.28);
}

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

.source-panel p:last-child {
  margin: 0;
  color: var(--muted);
  line-height: 1.78;
}

/* ── Demo showcase (principles + reel in Ch4) ── */

.demo-showcase {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-bottom: 28px;
}

.demo-showcase__principles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  align-content: start;
}

.demo-showcase__reel {
  display: grid;
  gap: 18px;
  align-content: start;
}

/* ── Featured reel (full-width two-column) ── */

.featured-reel {
  margin-bottom: 28px;
}

.featured-reel__head {
  margin-bottom: 18px;
}

.featured-reel__label {
  margin: 0 0 6px;
  color: var(--wine);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.featured-reel__head h3 {
  margin: 0 0 6px;
  font-family: "Cormorant Garamond", "LXGW WenKai", serif;
  font-size: 1.48rem;
}

.featured-reel__copy {
  margin: 0;
  color: var(--muted);
  font-size: 0.96rem;
  line-height: 1.76;
}

.featured-reel__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  align-items: start;
}

.featured-reel__grid>.demo-audio {
  margin-top: 0;
}

/* ── Contributions strip ── */

.contrib-strip {
  margin-top: 28px;
}

.contrib-strip__label {
  margin: 0 0 16px;
  color: var(--wine);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.contrib-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.contrib-card {
  position: relative;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.64);
  border-radius: var(--radius-lg);
  background: var(--paper);
  box-shadow: var(--shadow-soft);
}

.contrib-card__head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.contrib-card__tag {
  font-family: "Cormorant Garamond", "LXGW WenKai", serif;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.contrib-card.is-active .contrib-card__tag {
  color: var(--wine);
}

.contrib-card__number {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(140, 47, 51, 0.12), rgba(202, 152, 83, 0.22));
  color: var(--wine);
  font-family: "Cormorant Garamond", "LXGW WenKai", serif;
  font-size: 0.92rem;
  font-weight: 900;
}

.contrib-card h3 {
  margin: 0 0 8px;
  font-family: "Cormorant Garamond", "LXGW WenKai", serif;
  font-size: 1.24rem;
}

.contrib-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.78;
}

/* ── Contributions hub (hover-to-reveal) ── */

.contrib-hub {
  position: relative;
}

.contrib-card {
  cursor: pointer;
  transition: transform 240ms ease, box-shadow 240ms ease, border-color 240ms ease;
}

.contrib-card:hover,
.contrib-card.is-active {
  transform: translateY(-4px);
  border-color: rgba(140, 47, 51, 0.32);
  box-shadow: 0 18px 42px rgba(140, 47, 51, 0.14), 0 6px 16px rgba(88, 40, 22, 0.08);
}

.contrib-card.is-active {
  background: linear-gradient(135deg, rgba(255, 251, 244, 0.96), rgba(241, 209, 161, 0.22));
}

.contrib-card.is-active .contrib-card__number {
  background: linear-gradient(135deg, var(--wine), var(--wine-deep));
  color: #fff8ef;
}

.contrib-detail {
  position: relative;
  margin-top: 24px;
}

.contrib-detail__panel {
  display: none;
}

.contrib-detail__panel.is-active {
  display: block;
  animation: contribFadeIn 300ms ease;
}

@keyframes contribFadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.contrib-detail__inner {
  padding: 28px;
  border: 1px solid rgba(140, 47, 51, 0.12);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(255, 251, 244, 0.94), rgba(241, 209, 161, 0.12));
  box-shadow: var(--shadow-soft);
}

.contrib-detail__inner h4 {
  margin: 0 0 20px;
  font-family: "Cormorant Garamond", "LXGW WenKai", serif;
  font-size: 1.36rem;
  color: var(--ink);
}

.contrib-detail__points {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.contrib-detail__point {
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.64);
  border-radius: var(--radius-md);
  background: var(--paper);
  box-shadow: 0 4px 14px rgba(88, 40, 22, 0.05);
}

.contrib-detail__point strong {
  display: block;
  margin-bottom: 8px;
  color: var(--wine);
  font-size: 0.92rem;
  font-weight: 800;
}

.contrib-detail__point p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.78;
}

/* ── Showcase dark card (embedded in detail panels) ── */

.contrib-showcase {
  margin-top: 22px;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at top center, rgba(255, 255, 255, 0.08), transparent 34%),
    linear-gradient(145deg, rgba(90, 29, 32, 0.98), rgba(46, 18, 20, 0.98));
  box-shadow: var(--shadow);
}

.contrib-showcase__section+.contrib-showcase__section {
  margin-top: 32px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.contrib-showcase__eyebrow {
  margin: 0 0 16px;
  color: var(--gold-soft);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

/* ── CoT Pipeline (Card 02 showcase) ── */

.cot-pipeline {
  display: grid;
  gap: 20px;
}

.cot-pipeline__inputs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.cot-path {
  padding: 20px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.cot-path--instruct {
  background: linear-gradient(135deg, rgba(33, 91, 102, 0.22), rgba(33, 91, 102, 0.08));
  border-color: rgba(33, 91, 102, 0.3);
}

.cot-path--think {
  background: linear-gradient(135deg, rgba(140, 47, 51, 0.18), rgba(202, 152, 83, 0.1));
  border-color: rgba(140, 47, 51, 0.28);
}

.cot-path__label {
  margin: 0 0 8px;
  color: var(--gold-soft);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.cot-path h3 {
  margin: 0 0 12px;
  color: #fff7ee;
  font-family: "Cormorant Garamond", "LXGW WenKai", serif;
  font-size: 1.16rem;
}

.cot-path__list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 18px;
  color: rgba(255, 247, 238, 0.82);
  font-size: 0.9rem;
  line-height: 1.7;
}

.cot-pipeline__merge {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 8px;
}

.cot-pipeline__merge-line {
  flex: 1;
  height: 1px;
  background: rgba(241, 209, 161, 0.3);
}

.cot-pipeline__merge-label {
  flex: none;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(241, 209, 161, 0.12);
  color: var(--gold-soft);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.cot-pipeline__output {
  max-width: 680px;
  margin: 0 auto;
}

@media (max-width: 1360px) {
  .contrib-detail__points {
    grid-template-columns: 1fr;
  }

  .cot-pipeline__inputs {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .contrib-detail__inner {
    padding: 16px;
  }

  .contrib-detail__inner h4 {
    font-size: 1.18rem;
  }

  .contrib-showcase {
    padding: 14px;
  }

  .prompt-card,
  .annotation-card {
    padding: 14px;
    background: rgba(255, 248, 241, 0.14);
    border-color: rgba(255, 255, 255, 0.22);
    border-radius: 16px;
  }

  .prompt-card h3,
  .annotation-card h3 {
    font-size: 1.24rem;
    margin-bottom: 10px;
  }

  .prompt-card__code {
    padding: 12px;
    font-size: 0.84rem;
    border-radius: 12px;
  }

  .script-room-layout {
    gap: 14px;
  }

  .annotation-list {
    gap: 8px;
    padding-left: 16px;
    font-size: 0.9rem;
  }

  .control-timeline {
    gap: 12px;
  }

  .control-node {
    padding: 14px;
  }
}

/* ── Architecture flow ── */

.arch-flow {
  display: grid;
  gap: 0;
  max-width: 680px;
  margin: 0 auto;
}

.arch-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  padding: 6px 0;
}

.arch-connector__line {
  width: 2px;
  height: 18px;
  background: rgba(241, 209, 161, 0.4);
}

.arch-connector__arrow {
  color: var(--gold-soft);
  font-size: 0.88rem;
  line-height: 1;
}

.arch-node {
  padding: 20px 24px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  background: rgba(255, 248, 241, 0.06);
  text-align: center;
}

.arch-node__label {
  margin: 0 0 6px;
  color: var(--gold-soft);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.arch-node h3 {
  margin: 0 0 8px;
  color: #fff7ee;
  font-family: "Cormorant Garamond", "LXGW WenKai", serif;
  font-size: 1.36rem;
}

.arch-node h3 small {
  font-size: 0.82rem;
  font-weight: 500;
  color: rgba(255, 247, 238, 0.7);
}

.arch-node__desc {
  margin: 0;
  color: rgba(255, 247, 238, 0.8);
  font-size: 0.94rem;
  line-height: 1.7;
}

.arch-node__tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 10px;
}

.arch-node__tags span {
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(241, 209, 161, 0.14);
  color: var(--gold-soft);
  font-size: 0.82rem;
  font-weight: 600;
}

.arch-node--input,
.arch-node--output {
  background: rgba(241, 209, 161, 0.08);
  border-color: rgba(241, 209, 161, 0.2);
}

.arch-node--llm {
  background: linear-gradient(135deg, rgba(33, 91, 102, 0.18), rgba(33, 91, 102, 0.06));
  border-color: rgba(33, 91, 102, 0.3);
}

.arch-node--gst {
  background: linear-gradient(135deg, rgba(140, 47, 51, 0.14), rgba(202, 152, 83, 0.08));
  border-color: rgba(140, 47, 51, 0.28);
  padding: 24px;
}

.arch-node--engine {
  background: linear-gradient(135deg, rgba(255, 248, 241, 0.08), rgba(241, 209, 161, 0.04));
  border-color: rgba(255, 255, 255, 0.18);
}

.arch-node__pipeline {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.arch-node__pipeline span {
  color: rgba(255, 247, 238, 0.7);
  font-size: 0.88rem;
}

.arch-node__pipeline span:not(:nth-child(2n)) {
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(33, 91, 102, 0.2);
  color: #fff7ee;
  font-weight: 600;
}

/* GST stack layers */

.arch-stack {
  display: grid;
  gap: 6px;
  margin-top: 12px;
}

.arch-layer {
  display: grid;
  grid-template-columns: 80px 80px 1fr;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 14px;
  text-align: left;
}

.arch-layer__name {
  color: #fff7ee;
  font-family: "Cormorant Garamond", "LXGW WenKai", serif;
  font-size: 1.06rem;
  font-weight: 900;
}

.arch-layer__role {
  color: var(--gold-soft);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.arch-layer__desc {
  color: rgba(255, 247, 238, 0.82);
  font-size: 0.86rem;
  line-height: 1.6;
}

.arch-layer--global {
  background: rgba(140, 47, 51, 0.22);
}

.arch-layer--sentence {
  background: rgba(202, 152, 83, 0.18);
}

.arch-layer--token {
  background: rgba(33, 91, 102, 0.2);
}

/* Engine pipeline steps */

.arch-engine-steps {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 8px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.arch-engine-step {
  display: grid;
  gap: 4px;
  padding: 12px 16px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  flex: 1;
  min-width: 120px;
}

.arch-engine-step__icon {
  font-size: 1.4rem;
}

.arch-engine-step strong {
  color: #fff7ee;
  font-size: 0.9rem;
}

.arch-engine-step span:last-child {
  color: rgba(255, 247, 238, 0.7);
  font-size: 0.8rem;
  line-height: 1.5;
}

.arch-engine-sep {
  display: flex;
  align-items: center;
  color: var(--gold-soft);
  font-size: 1.1rem;
}

.arch-engine-note {
  margin-top: 14px;
  padding: 10px 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px dashed rgba(241, 209, 161, 0.2);
  color: rgba(255, 247, 238, 0.72);
  font-size: 0.86rem;
  line-height: 1.7;
}

/* Bandwidth comparison */

.arch-bandwidth {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 32px;
}

.arch-bw-card {
  padding: 22px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 248, 241, 0.06);
}

.arch-bw-card__label {
  margin: 0 0 8px;
  color: var(--gold-soft);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.arch-bw-card h3 {
  margin: 0 0 8px;
  color: #fff7ee;
  font-family: "Cormorant Garamond", "LXGW WenKai", serif;
  font-size: 1.3rem;
}

.arch-bw-card p {
  margin: 0 0 14px;
  color: rgba(255, 247, 238, 0.78);
  font-size: 0.9rem;
  line-height: 1.76;
}

.arch-bw-bar {
  height: 8px;
  border-radius: 999px;
}

.arch-bw-bar--narrow {
  width: 22%;
  background: rgba(255, 255, 255, 0.2);
}

.arch-bw-bar--wide {
  width: 92%;
  background: linear-gradient(90deg, var(--wine), var(--gold), var(--teal));
}

/* ── Contributions CTA ── */

.contrib-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin-top: 36px;
}

.contrib-cta__hint {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  opacity: 0.78;
}

.contrib-cta__btn {
  gap: 8px;
}

.contrib-cta__btn svg {
  flex: none;
  animation: ctaBounce 1.8s ease-in-out infinite;
}

@keyframes ctaBounce {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-3px);
  }
}

.demo-audio {
  margin-top: auto;
}

.demo-audio__shell {
  display: grid;
  gap: 14px;
  padding: 18px;
  border: 1px solid rgba(140, 47, 51, 0.14);
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(140, 47, 51, 0.05), rgba(241, 209, 161, 0.12));
}

.demo-audio__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.demo-audio__head strong {
  font-size: 0.98rem;
}

.demo-audio__head-note {
  flex: 1;
  color: var(--muted);
  font-size: 0.74rem;
  line-height: 1.5;
  opacity: 0.68;
}

.demo-audio__list {
  display: grid;
  gap: 14px;
}

.program-card--creative .demo-audio__list {
  align-items: start;
}

.demo-audio__item {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid rgba(34, 24, 20, 0.08);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.56);
}

.demo-audio__meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.demo-audio__title {
  margin: 0;
  font-size: 0.98rem;
  font-weight: 700;
}

.demo-audio__kind {
  flex: none;
  padding: 5px 9px;
  border-radius: 999px;
  background: rgba(140, 47, 51, 0.08);
  color: var(--wine);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.demo-audio__sub {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.65;
}

.demo-audio__feature {
  display: grid;
  gap: 8px;
  padding: 12px;
  border-radius: 12px;
  background: rgba(17, 12, 10, 0.05);
}

.demo-audio__detail-label {
  margin: 0;
  color: var(--wine);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.demo-audio__feature-body {
  color: var(--ink);
  font-size: 0.88rem;
  line-height: 1.7;
  white-space: pre-wrap;
}

.demo-audio__prompt {
  padding-top: 4px;
}

.demo-audio__prompt summary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(140, 47, 51, 0.08);
  color: var(--wine);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  list-style: none;
}

.demo-audio__prompt[open] summary {
  margin-bottom: 10px;
}

.demo-audio__prompt summary::-webkit-details-marker {
  display: none;
}

.demo-audio__prompt pre {
  margin: 10px 0 0;
  min-height: 64px;
  padding: 12px;
  overflow: auto;
  border-radius: 12px;
  background: rgba(17, 12, 10, 0.06);
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 0.84rem;
  line-height: 1.7;
}

.demo-audio__status {
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--wine);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.demo-audio__wave {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  min-height: 52px;
}

.demo-audio__wave span {
  flex: 1;
  height: var(--bar-height);
  min-height: 10px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(33, 91, 102, 0.72), rgba(140, 47, 51, 0.88));
  animation: pulse 2600ms ease-in-out infinite;
}

.demo-audio__note {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.72;
}

.demo-audio audio {
  width: 100%;
}

/* ── Custom audio player ── */

.audio-player {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 14px;
  background: rgba(17, 12, 10, 0.05);
}

.audio-player audio {
  position: absolute;
  width: 0;
  height: 0;
  opacity: 0;
  pointer-events: none;
}

.audio-player__btn {
  flex: none;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--wine), var(--wine-deep));
  color: #fffaf3;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.audio-player__btn:hover {
  transform: scale(1.08);
  box-shadow: 0 4px 12px rgba(140, 47, 51, 0.28);
}

.audio-player__icon--pause,
.audio-player__icon--loading {
  display: none;
}

.audio-player[data-state="playing"] .audio-player__icon--play {
  display: none;
}

.audio-player[data-state="playing"] .audio-player__icon--pause {
  display: block;
}

.audio-player[data-state="loading"] .audio-player__icon--play {
  display: none;
}

.audio-player[data-state="loading"] .audio-player__icon--loading {
  display: block;
  animation: playerSpin 0.7s linear infinite;
}

@keyframes playerSpin {
  to {
    transform: rotate(360deg);
  }
}

.audio-player__track {
  flex: 1;
  position: relative;
  height: 6px;
  border-radius: 999px;
  background: rgba(34, 24, 20, 0.12);
}

.audio-player__buffered,
.audio-player__fill {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  border-radius: 999px;
  pointer-events: none;
  transition: width 80ms linear;
}

.audio-player__buffered {
  background: rgba(34, 24, 20, 0.07);
}

.audio-player__fill {
  background: linear-gradient(90deg, var(--wine), var(--gold));
  width: 0%;
}

.audio-player__seek {
  position: absolute;
  top: 50%;
  left: -2px;
  width: calc(100% + 4px);
  height: 28px;
  margin: 0;
  padding: 0;
  transform: translateY(-50%);
  background: transparent;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  outline: none;
}

.audio-player__seek::-webkit-slider-runnable-track {
  height: 6px;
  background: transparent;
  border-radius: 999px;
}

.audio-player__seek::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--wine);
  border: 2px solid #fff;
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.18);
  margin-top: -4px;
  opacity: 0;
  transition: opacity 160ms ease, transform 160ms ease;
}

.audio-player:hover .audio-player__seek::-webkit-slider-thumb,
.audio-player__seek:active::-webkit-slider-thumb {
  opacity: 1;
}

.audio-player__seek:active::-webkit-slider-thumb {
  transform: scale(1.2);
}

.audio-player__seek::-moz-range-track {
  height: 6px;
  background: transparent;
  border: none;
  border-radius: 999px;
}

.audio-player__seek::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--wine);
  border: 2px solid #fff;
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.18);
  opacity: 0;
  transition: opacity 160ms ease, transform 160ms ease;
}

.audio-player:hover .audio-player__seek::-moz-range-thumb {
  opacity: 1;
}

.audio-player__seek:active::-moz-range-thumb {
  transform: scale(1.2);
}

.audio-player__time {
  flex: none;
  min-width: 78px;
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
  color: var(--muted);
  text-align: right;
  white-space: nowrap;
}

.audio-player__dl {
  flex: none;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  color: var(--muted);
  text-decoration: none;
  transition: color 160ms ease, background 160ms ease;
}

.audio-player__dl:hover {
  color: var(--wine);
  background: rgba(140, 47, 51, 0.08);
}

.demo-audio video {
  width: 100%;
  max-height: 320px;
  object-fit: contain;
  border-radius: 14px;
  background: rgba(17, 12, 10, 0.9);
}

/* ── Video blob wrapper ── */

.video-blob-wrap {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  background: rgba(17, 12, 10, 0.9);
}

.video-blob-wrap video {
  width: 100%;
  max-height: 320px;
  object-fit: contain;
  border-radius: 14px;
}

.video-blob-wrap__overlay {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 180px;
  cursor: pointer;
  user-select: none;
}

.video-blob-wrap__play {
  border: none;
  background: none;
  padding: 0;
  cursor: pointer;
  opacity: 0.8;
  transition: opacity 160ms ease, transform 160ms ease;
}

.video-blob-wrap__overlay:hover .video-blob-wrap__play {
  opacity: 1;
  transform: scale(1.08);
}

.video-blob-wrap__hint {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.84rem;
}

.video-blob-wrap__overlay.is-loading .video-blob-wrap__play {
  animation: playerSpin 0.7s linear infinite;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 0 36px;
  color: var(--muted);
  font-size: 0.92rem;
}

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

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 520ms ease, transform 520ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes pulse {

  0%,
  100% {
    transform: scaleY(0.9);
    opacity: 0.72;
  }

  50% {
    transform: scaleY(1.08);
    opacity: 1;
  }
}

@media (max-width: 1360px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    max-width: none;
  }
}

@media (max-width: 960px) {
  .contrib-hub {
    display: flex;
    flex-direction: column;
    gap: 18px;
  }

  .contrib-grid,
  .contrib-detail {
    display: contents;
  }

  .contrib-card[data-index="0"] {
    order: 1;
  }

  .contrib-detail__panel[data-panel="0"] {
    order: 2;
  }

  .contrib-card[data-index="1"] {
    order: 3;
  }

  .contrib-detail__panel[data-panel="1"] {
    order: 4;
  }

  .contrib-card[data-index="2"] {
    order: 5;
  }

  .contrib-detail__panel[data-panel="2"] {
    order: 6;
  }

  .contrib-detail__panel {
    display: block;
    margin-top: 0;
    animation: none;
  }

  .contrib-card {
    transform: none !important;
  }

  .contrib-card.is-active {
    transform: none;
    border-color: rgba(255, 255, 255, 0.64);
    box-shadow: none;
    background: var(--paper);
  }

  .contrib-card.is-active .contrib-card__number {
    background: linear-gradient(135deg, rgba(140, 47, 51, 0.12), rgba(202, 152, 83, 0.22));
    color: var(--wine);
  }

  .contrib-card.is-active .contrib-card__tag {
    color: var(--muted);
  }
}

@media (max-width: 1360px) {

  body::before,
  body::after {
    display: none;
  }

  .site-header {
    grid-template-columns: 1fr;
    justify-items: start;
    border-radius: 28px;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .principles-strip,
  .comparison-grid,
  .proof-strip,
  .program-layout,
  .script-room-layout,
  .release-grid,
  .arch-bandwidth,
  .demo-showcase,
  .demo-showcase__principles,
  .featured-reel__grid {
    grid-template-columns: 1fr;
  }

  .arch-layer {
    grid-template-columns: 70px 70px 1fr;
    gap: 8px;
    padding: 10px 12px;
  }

  .program-sidebar {
    position: static;
  }

  .source-panel,
  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .control-node {
    grid-template-columns: 1fr;
  }

  .control-node__index {
    width: 88px;
    height: 88px;
  }
}

@media (max-width: 760px) {
  .page-shell {
    width: min(calc(100% - 20px), var(--max-width));
  }

  .site-header {
    position: static;
    margin-top: 10px;
  }

  .hero {
    padding-top: 18px;
  }

  .hero__metrics,
  .program-grid {
    grid-template-columns: 1fr;
  }

  .arch-layer {
    grid-template-columns: 1fr;
    gap: 2px;
    text-align: center;
  }

  .arch-engine-sep {
    display: none;
  }

  .program-card--creative .demo-audio__list {
    grid-template-columns: 1fr;
  }

  .closing-note {
    padding: 24px 18px;
  }

  .closing-note h3 {
    font-size: 1.3rem;
  }

  .closing-note__cta {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding: 16px 18px;
  }

  .section,
  .section--dark {
    padding-left: 18px;
    padding-right: 18px;
  }

  .poster-card,
  .console-card,
  .principle-tile,
  .comparison-card,
  .proof-card,
  .program-sidebar,
  .program-card,
  .prompt-card,
  .annotation-card,
  .control-node,
  .release-card,
  .source-panel,
  .hero__metrics li {
    box-shadow: 0 10px 28px rgba(89, 43, 21, 0.1);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}