:root {
  color-scheme: dark;
  --bg: #07101f;
  --bg-deep: #040913;
  --surface: rgba(15, 27, 48, 0.76);
  --surface-solid: #101c31;
  --surface-2: #13233d;
  --surface-3: #172a48;
  --text: #f4f8ff;
  --muted: #aabbd2;
  --subtle: #7f94b1;
  --line: rgba(158, 187, 224, 0.16);
  --line-strong: rgba(125, 169, 255, 0.34);
  --primary: #6fa6ff;
  --primary-strong: #337dff;
  --primary-soft: rgba(80, 137, 255, 0.15);
  --cyan: #55e5d0;
  --purple: #a87aff;
  --green: #5ce0aa;
  --warning: #ffc45e;
  --danger: #ff758f;
  --shadow-sm: 0 12px 32px rgba(0, 0, 0, 0.18);
  --shadow-lg: 0 32px 90px rgba(0, 0, 0, 0.34);
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 30px;
  --radius-xl: 40px;
  --container: 1240px;
  --header-h: 78px;
  --ease: cubic-bezier(.2, .8, .2, 1);
  --font-sans: "Manrope", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #f6f9fe;
  --bg-deep: #eaf1fb;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-solid: #ffffff;
  --surface-2: #eef4fc;
  --surface-3: #e7effa;
  --text: #0b1830;
  --muted: #52657f;
  --subtle: #71829a;
  --line: rgba(25, 65, 120, 0.14);
  --line-strong: rgba(31, 102, 220, 0.32);
  --primary: #155fd8;
  --primary-strong: #0f51c1;
  --primary-soft: rgba(21, 95, 216, 0.09);
  --cyan: #008e7d;
  --purple: #7454cf;
  --green: #087f5b;
  --warning: #9b6200;
  --danger: #bc3653;
  --shadow-sm: 0 12px 30px rgba(20, 54, 98, 0.09);
  --shadow-lg: 0 32px 80px rgba(23, 63, 118, 0.14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  margin: 0;
  min-width: 320px;
  min-height: 100dvh;
  overflow-x: clip;
  background:
    radial-gradient(circle at 78% 8%, rgba(51, 125, 255, 0.14), transparent 30rem),
    radial-gradient(circle at 14% 40%, rgba(85, 229, 208, 0.07), transparent 28rem),
    var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
body.nav-open { overflow: hidden; }
img, svg, video, canvas { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; touch-action: manipulation; }
button, input, textarea, select { font: inherit; }
a { color: inherit; }
button { color: inherit; }
::selection { background: rgba(82, 143, 255, 0.34); color: var(--text); }

.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; min-width: 0; }
.section { position: relative; }
.section-pad { padding-block: clamp(76px, 10vw, 132px); }
.section-tint {
  background: linear-gradient(180deg, transparent, rgba(91, 142, 229, 0.055) 18%, rgba(91, 142, 229, 0.055) 82%, transparent);
}
.section-heading { max-width: 840px; margin-bottom: clamp(38px, 6vw, 70px); }
.section-heading h2,
.showreel-copy h2,
.semantic-copy h2,
.interpretation-copy h2,
.citation-copy h2 {
  margin: 10px 0 18px;
  font-size: clamp(2.05rem, 5vw, 4.8rem);
  line-height: 1.02;
  letter-spacing: -0.055em;
  text-wrap: balance;
}
.section-heading p,
.showreel-copy > p,
.semantic-copy > p,
.interpretation-copy > p,
.citation-copy > p {
  margin: 0;
  max-width: 760px;
  color: var(--muted);
  font-size: clamp(1rem, 1.8vw, 1.18rem);
}
.eyebrow, .micro-label {
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .11em;
  text-transform: uppercase;
}
.gradient-text {
  background: linear-gradient(100deg, var(--primary), var(--cyan) 48%, var(--purple));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}


.noscript-banner {
  position: relative;
  z-index: 1001;
  padding: 12px 20px;
  border-bottom: 1px solid rgba(255,255,255,.12);
  color: #edf4ff;
  background: #13213a;
  text-align: center;
  font-size: .82rem;
}

.skip-link {
  position: fixed;
  z-index: 2000;
  left: 16px;
  top: 12px;
  transform: translateY(-150%);
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--text);
  color: var(--bg);
  font-weight: 800;
  text-decoration: none;
  transition: transform .2s ease;
}
.skip-link:focus { transform: none; }

.ambient { position: fixed; z-index: -1; width: 42rem; height: 42rem; border-radius: 50%; filter: blur(100px); opacity: .18; pointer-events: none; }
.ambient-one { right: -22rem; top: 12rem; background: #286dff; }
.ambient-two { left: -24rem; top: 68rem; background: #24cbb7; }

.site-header {
  position: fixed;
  z-index: 1000;
  inset: 0 0 auto;
  padding-top: max(10px, env(safe-area-inset-top));
  transition: background .25s ease, border-color .25s ease, transform .25s ease;
}
.site-header.scrolled { background: color-mix(in srgb, var(--bg) 82%, transparent); border-bottom: 1px solid var(--line); backdrop-filter: blur(20px) saturate(1.25); }
.nav-shell { min-height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; min-width: 0; text-decoration: none; }
.brand-mark {
  position: relative;
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  border-radius: 13px;
  background: linear-gradient(145deg, var(--primary-strong), var(--purple));
  box-shadow: 0 10px 30px rgba(44, 112, 255, 0.28), inset 0 1px rgba(255,255,255,.3);
}
.brand-mark::before, .brand-mark::after, .brand-mark span::before {
  content: "";
  position: absolute;
  border: 2px solid rgba(255,255,255,.9);
  border-radius: 4px;
}
.brand-mark::before { width: 15px; height: 15px; left: 8px; top: 9px; transform: rotate(30deg); }
.brand-mark::after { width: 12px; height: 12px; right: 7px; bottom: 8px; transform: rotate(-12deg); }
.brand-mark span::before { width: 6px; height: 6px; right: 10px; top: 8px; border-radius: 50%; }
.brand-copy { display: flex; flex-direction: column; line-height: 1.1; }
.brand-copy strong { font-size: .95rem; letter-spacing: .03em; }
.brand-copy small { margin-top: 4px; color: var(--subtle); font-size: .68rem; }
.site-nav { display: flex; align-items: center; gap: 26px; }
.site-nav > a { position: relative; color: var(--muted); font-size: .84rem; font-weight: 700; text-decoration: none; }
.site-nav > a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -7px; height: 2px; border-radius: 999px; background: var(--primary); transition: right .22s var(--ease); }
.site-nav > a:hover, .site-nav > a:focus-visible, .site-nav > a.active { color: var(--text); }
.site-nav > a:hover::after, .site-nav > a:focus-visible::after, .site-nav > a.active::after { right: 0; }
.site-nav .nav-paper { padding: 10px 15px; border: 1px solid var(--line-strong); border-radius: 999px; color: var(--text); background: var(--primary-soft); }
.site-nav .nav-paper::after { display: none; }
.icon-button, .viewer-action {
  display: inline-grid;
  place-items: center;
  min-width: 44px;
  min-height: 44px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  cursor: pointer;
  transition: border-color .2s ease, background .2s ease, transform .2s ease;
}
.icon-button:hover, .viewer-action:hover { border-color: var(--line-strong); background: var(--surface-2); }
.icon-button:active, .viewer-action:active { transform: scale(.97); }
.icon-button svg, .viewer-action svg, .button svg, .compact-button svg, .bento-icon svg, .resource-icon svg, .truth-callout svg, .showreel-note svg, .viewer-hint svg, .video-toggle svg, .copy-code svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.nav-toggle { display: none; }

.hero { min-height: 100dvh; display: flex; align-items: center; padding-top: calc(var(--header-h) + 72px); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, .93fr) minmax(480px, 1.07fr); gap: clamp(42px, 7vw, 96px); align-items: center; }
.hero-copy { min-width: 0; }
.status-pill, .live-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface-solid) 72%, transparent);
  color: var(--muted);
  font-size: .72rem;
  font-weight: 700;
  box-shadow: var(--shadow-sm);
}
.status-dot, .live-badge span { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 5px rgba(92,224,170,.12), 0 0 18px var(--green); }
.hero h1 { display: flex; flex-wrap: wrap; margin: 28px 0 12px; font-size: clamp(4.2rem, 10vw, 9.6rem); line-height: .82; letter-spacing: -.085em; }
.hero-kicker { margin: 0; max-width: 680px; color: var(--text); font-size: clamp(1.05rem, 2vw, 1.42rem); font-weight: 600; line-height: 1.45; }
.hero-summary { margin: 24px 0 0; max-width: 680px; color: var(--muted); font-size: clamp(1rem, 1.6vw, 1.12rem); }
.authors { margin: 24px 0 0; color: var(--muted); font-size: .86rem; }
.authors span { color: var(--subtle); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 50px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 15px;
  font-size: .88rem;
  font-weight: 800;
  text-decoration: none;
  transition: transform .2s var(--ease), box-shadow .2s ease, border-color .2s ease, background .2s ease;
}
.button:hover { transform: translateY(-2px); }
.button:active { transform: scale(.98); }
.button-primary { color: white; background: linear-gradient(135deg, var(--primary-strong), #6957dd); box-shadow: 0 14px 34px rgba(47, 112, 255, .28); }
.button-primary:hover { box-shadow: 0 18px 42px rgba(47, 112, 255, .38); }
.button-secondary { border-color: var(--line-strong); background: var(--surface); }
.hero-facts { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 26px; }
.hero-facts span, .detail-artifacts span, .part-legend span {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255,255,255,.025);
  font-family: var(--font-mono);
  font-size: .67rem;
}
.hero-stage { position: relative; min-width: 0; }
.viewer-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: linear-gradient(155deg, rgba(17, 31, 55, .94), rgba(6, 13, 25, .94));
  box-shadow: var(--shadow-lg), inset 0 1px rgba(255,255,255,.06);
}
html[data-theme="light"] .viewer-card { background: linear-gradient(155deg, #fafdff, #e9f2ff); }
.hero-viewer { transform: perspective(1200px) rotateY(-2deg) rotateX(1deg); transition: transform .35s var(--ease); }
.hero-viewer:hover { transform: perspective(1200px) rotateY(0) rotateX(0) translateY(-4px); }
.viewer-topbar, .viewer-controls { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 16px 18px; }
.viewer-topbar { border-bottom: 1px solid var(--line); }
.viewer-topbar > div:first-child { display: flex; flex-direction: column; min-width: 0; }
.viewer-topbar strong { margin-top: 3px; font-size: .9rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.live-badge { padding: 6px 9px; font-size: .64rem; box-shadow: none; }
.live-badge span { width: 6px; height: 6px; box-shadow: 0 0 12px var(--green); }
.viewer-canvas-wrap { position: relative; aspect-ratio: 1.15 / 1; min-height: 400px; background:
  linear-gradient(rgba(95, 139, 205, .045) 1px, transparent 1px),
  linear-gradient(90deg, rgba(95, 139, 205, .045) 1px, transparent 1px),
  radial-gradient(circle at 50% 50%, rgba(60, 122, 255, .12), transparent 60%);
  background-size: 32px 32px, 32px 32px, auto;
}
.cad-canvas, .viewer-fallback { position: absolute; inset: 0; width: 100%; height: 100%; }
.cad-canvas { z-index: 2; cursor: grab; touch-action: none; }
.cad-canvas:active { cursor: grabbing; }
.viewer-fallback { z-index: 1; object-fit: contain; padding: 24px; opacity: .62; transition: opacity .4s ease; }
.viewer-card.ready .viewer-fallback { opacity: 0; pointer-events: none; }
.viewer-loading { position: absolute; z-index: 4; inset: 0; display: flex; align-items: center; justify-content: center; gap: 10px; color: var(--muted); font-size: .75rem; background: rgba(5, 10, 20, .28); transition: opacity .3s ease; }
.viewer-loading span { width: 18px; height: 18px; border: 2px solid var(--line); border-top-color: var(--primary); border-radius: 50%; animation: spin .8s linear infinite; }
.viewer-card.ready .viewer-loading, .viewer-card.failed .viewer-loading { opacity: 0; pointer-events: none; }
.viewer-hint { position: absolute; z-index: 3; left: 14px; bottom: 14px; display: flex; align-items: center; gap: 8px; padding: 7px 10px; border: 1px solid rgba(255,255,255,.1); border-radius: 10px; color: #c9d8eb; background: rgba(4, 10, 20, .7); backdrop-filter: blur(10px); font-size: .65rem; pointer-events: none; }
.viewer-hint svg { width: 16px; height: 16px; }
.viewer-controls { flex-wrap: wrap; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.model-tabs { display: flex; gap: 6px; min-width: 0; }
.model-tab, .example-tab {
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid transparent;
  border-radius: 11px;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  font-size: .7rem;
  font-weight: 800;
  transition: color .2s ease, background .2s ease, border-color .2s ease;
}
.model-tab:hover, .example-tab:hover { color: var(--text); background: var(--primary-soft); }
.model-tab.active, .model-tab[aria-selected="true"], .example-tab.active, .example-tab[aria-selected="true"] { color: var(--text); border-color: var(--line-strong); background: var(--primary-soft); }
.viewer-actions { display: flex; gap: 7px; }
.viewer-action { min-width: 44px; min-height: 44px; border-radius: 11px; }
.viewer-action svg { width: 17px; height: 17px; }
.viewer-action.active { color: white; border-color: transparent; background: var(--primary-strong); }
.part-legend { display: flex; flex-wrap: wrap; gap: 7px; padding: 13px 18px 17px; min-height: 58px; }
.part-legend span { gap: 7px; }
.part-legend i { width: 8px; height: 8px; border-radius: 3px; background: var(--part-color); box-shadow: 0 0 12px color-mix(in srgb, var(--part-color) 55%, transparent); }
.hero-orbit { position: absolute; z-index: -1; border: 1px solid rgba(105, 160, 255, .18); border-radius: 50%; pointer-events: none; animation: orbit 16s linear infinite; }
.orbit-one { width: 110%; aspect-ratio: 1; left: -5%; top: -4%; }
.orbit-two { width: 78%; aspect-ratio: 1; right: -12%; bottom: -18%; animation-direction: reverse; animation-duration: 23s; }

.metric-band { position: relative; border-block: 1px solid var(--line); background: color-mix(in srgb, var(--surface-solid) 42%, transparent); backdrop-filter: blur(18px); }
.metric-grid { display: grid; grid-template-columns: repeat(5, 1fr); }
.metric-grid article { min-width: 0; padding: 26px 18px; border-right: 1px solid var(--line); }
.metric-grid article:last-child { border-right: 0; }
.metric-grid strong { display: block; color: var(--text); font-size: clamp(1.45rem, 2.7vw, 2.35rem); line-height: 1; letter-spacing: -.04em; font-variant-numeric: tabular-nums; }
.metric-grid span { display: block; margin-top: 9px; color: var(--subtle); font-size: .72rem; line-height: 1.35; }

.bento-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 18px; }
.bento-card { position: relative; min-width: 0; overflow: hidden; grid-column: span 4; min-height: 290px; padding: clamp(24px, 3vw, 36px); border: 1px solid var(--line); border-radius: var(--radius-md); background: linear-gradient(145deg, color-mix(in srgb, var(--surface-solid) 88%, transparent), color-mix(in srgb, var(--surface-2) 72%, transparent)); box-shadow: var(--shadow-sm); }
.bento-card::after { content: ""; position: absolute; width: 170px; height: 170px; right: -70px; bottom: -90px; border-radius: 50%; background: var(--primary-soft); filter: blur(8px); }
.bento-large { grid-column: span 7; }
.bento-wide { grid-column: span 8; }
.card-index { position: absolute; right: 20px; top: 16px; color: var(--subtle); font-family: var(--font-mono); font-size: .68rem; }
.bento-icon { display: grid; place-items: center; width: 48px; height: 48px; border: 1px solid var(--line-strong); border-radius: 15px; color: var(--primary); background: var(--primary-soft); }
.bento-icon svg { width: 23px; height: 23px; }
.bento-card h3 { position: relative; z-index: 1; margin: 26px 0 10px; font-size: clamp(1.25rem, 2.2vw, 2rem); line-height: 1.15; letter-spacing: -.03em; }
.bento-card p { position: relative; z-index: 1; margin: 0; color: var(--muted); }
.code-mini { position: relative; z-index: 1; margin-top: 28px; padding: 13px 15px; border: 1px solid var(--line); border-radius: 12px; color: var(--muted); background: rgba(0,0,0,.12); font-family: var(--font-mono); font-size: .74rem; overflow-wrap: anywhere; }
.code-mini span { color: var(--cyan); }
.code-mini strong { color: var(--primary); }
.bento-split { display: grid; grid-template-columns: 1.1fr .9fr; gap: 28px; align-items: stretch; }
.mini-chart { display: flex; align-items: end; gap: 8px; min-height: 190px; padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: rgba(0,0,0,.12); }
.mini-chart span { flex: 1; min-width: 5px; height: var(--h); border-radius: 5px 5px 2px 2px; background: linear-gradient(to top, var(--primary-strong), var(--cyan)); opacity: .8; }
.mini-chart span.failed { background: linear-gradient(to top, #5d6576, #8994a8); opacity: .42; }

.showreel-section { overflow: hidden; }
.showreel-grid, .semantic-grid, .interpretation-grid, .citation-grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(38px, 7vw, 92px); align-items: center; }
.showreel-copy { min-width: 0; }
.showreel-note { display: flex; align-items: flex-start; gap: 12px; margin-top: 28px; padding: 16px 18px; border: 1px solid var(--line); border-radius: 16px; color: var(--muted); background: var(--surface); font-size: .82rem; }
.showreel-note svg { flex: 0 0 auto; width: 18px; height: 18px; margin-top: 3px; color: var(--primary); }
.showreel-note code { color: var(--text); font-family: var(--font-mono); }
.video-shell { position: relative; min-width: 0; overflow: hidden; border: 1px solid var(--line-strong); border-radius: var(--radius-lg); background: #030812; box-shadow: var(--shadow-lg); }
.video-shell video { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.video-shell::after { content: ""; position: absolute; inset: 0; pointer-events: none; box-shadow: inset 0 0 0 1px rgba(255,255,255,.04), inset 0 -120px 100px -80px rgba(0,0,0,.9); }
.video-toggle { position: absolute; z-index: 2; left: 50%; top: 50%; transform: translate(-50%, -50%); display: inline-flex; align-items: center; gap: 10px; min-height: 52px; padding: 0 18px; border: 1px solid rgba(255,255,255,.25); border-radius: 999px; color: white; background: rgba(4,10,20,.72); backdrop-filter: blur(14px); cursor: pointer; font-size: .82rem; font-weight: 800; transition: transform .2s ease, opacity .2s ease; }
.video-toggle:hover { transform: translate(-50%, -50%) scale(1.04); }
.video-toggle .pause-icon { display: none; }
.video-shell.playing .video-toggle { top: 24px; left: auto; right: 24px; transform: none; min-width: 44px; width: 44px; padding: 0; justify-content: center; opacity: .84; }
.video-shell.playing .video-toggle:hover { transform: scale(1.04); opacity: 1; }
.video-shell.playing .video-toggle span, .video-shell.playing .play-icon { display: none; }
.video-shell.playing .pause-icon { display: block; }
.video-caption { position: absolute; z-index: 2; left: 22px; right: 22px; bottom: 18px; display: flex; justify-content: space-between; color: rgba(255,255,255,.76); font-family: var(--font-mono); font-size: .64rem; }

.model-story-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.model-story { min-width: 0; padding: 26px; border: 1px solid var(--line); border-radius: 20px; background: var(--surface); }
.story-number { display: grid; place-items: center; width: 38px; height: 38px; border: 1px solid var(--line-strong); border-radius: 12px; color: var(--primary); background: var(--primary-soft); font-family: var(--font-mono); font-weight: 700; }
.model-story h3 { margin: 22px 0 8px; font-size: 1.18rem; }
.model-story p { margin: 0; color: var(--muted); font-size: .88rem; }

.pipeline-app { overflow: hidden; border: 1px solid var(--line-strong); border-radius: var(--radius-lg); background: color-mix(in srgb, var(--surface-solid) 89%, transparent); box-shadow: var(--shadow-lg); }
.pipeline-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 16px 18px; border-bottom: 1px solid var(--line); background: rgba(255,255,255,.018); }
.pipeline-status { display: flex; align-items: center; gap: 10px; min-width: 0; color: var(--muted); font-size: .76rem; }
.pipeline-toolbar-actions { display: flex; gap: 8px; }
.compact-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 13px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--text);
  background: var(--surface);
  cursor: pointer;
  font-size: .72rem;
  font-weight: 800;
  transition: border-color .2s ease, background .2s ease, transform .2s ease;
}
.compact-button:hover { border-color: var(--line-strong); background: var(--surface-2); }
.compact-button:active { transform: scale(.98); }
.compact-button svg { width: 17px; height: 17px; }
.pipeline-map { position: relative; display: grid; grid-template-columns: minmax(150px, .72fr) 26px minmax(240px, 1.25fr) 26px minmax(190px, .92fr) 26px minmax(220px, 1.08fr); align-items: stretch; gap: 0; padding: 18px; overflow-x: auto; scrollbar-width: thin; }
.pipeline-stage { min-width: 0; padding: 15px; border: 1px solid var(--line); border-radius: 18px; background: rgba(255,255,255,.018); transition: border-color .25s ease, box-shadow .25s ease, transform .25s ease; }
.pipeline-stage.active { border-color: var(--line-strong); box-shadow: 0 0 0 3px var(--primary-soft); transform: translateY(-2px); }
.stage-heading { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.stage-heading > span { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; color: white; background: linear-gradient(145deg, var(--primary-strong), var(--purple)); font-family: var(--font-mono); font-size: .7rem; }
.stage-heading div { display: flex; flex-direction: column; min-width: 0; line-height: 1.2; }
.stage-heading strong { font-size: .78rem; }
.stage-heading small { margin-top: 3px; color: var(--subtle); font-size: .62rem; }
.stage-nodes { display: grid; gap: 8px; }
.cad-grid { grid-template-columns: 1fr 1fr; }
.pipeline-node { display: flex; align-items: center; gap: 9px; min-width: 0; min-height: 58px; width: 100%; padding: 9px 10px; border: 1px solid var(--line); border-radius: 12px; color: var(--text); text-align: left; background: color-mix(in srgb, var(--surface-solid) 58%, transparent); cursor: pointer; transition: border-color .2s ease, background .2s ease, transform .2s var(--ease); }
.pipeline-node:hover { border-color: var(--line-strong); background: var(--primary-soft); transform: translateY(-1px); }
.pipeline-node.active { border-color: var(--primary); background: var(--primary-soft); box-shadow: 0 0 0 2px rgba(79,137,255,.12); }
.pipeline-node > span:last-child { display: flex; flex-direction: column; min-width: 0; line-height: 1.2; }
.pipeline-node strong { font-size: .68rem; }
.pipeline-node small { margin-top: 4px; color: var(--subtle); font-size: .57rem; white-space: normal; overflow-wrap: anywhere; }
.node-icon, .node-step { display: grid; place-items: center; flex: 0 0 auto; width: 32px; height: 32px; border: 1px solid var(--line); border-radius: 9px; color: var(--primary); background: rgba(255,255,255,.035); }
.node-icon svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.node-step { color: var(--cyan); font-family: var(--font-mono); font-size: .66rem; font-weight: 700; }
.agent-flow .pipeline-node { min-height: 50px; }
.decision-node { border-style: dashed; }
.pipeline-arrow { position: relative; min-width: 26px; }
.pipeline-arrow::before { content: ""; position: absolute; left: 3px; right: 5px; top: 50%; height: 2px; background: linear-gradient(90deg, var(--primary), var(--cyan)); opacity: .52; }
.pipeline-arrow::after { content: ""; position: absolute; right: 1px; top: calc(50% - 5px); width: 8px; height: 8px; border-top: 2px solid var(--cyan); border-right: 2px solid var(--cyan); transform: rotate(45deg); }
.pipeline-arrow span { position: absolute; z-index: 2; top: calc(50% - 4px); left: 0; width: 8px; height: 8px; border-radius: 50%; background: white; box-shadow: 0 0 16px var(--cyan); opacity: 0; }
.pipeline-app.playing .pipeline-arrow span { opacity: 1; animation: signal 1.4s linear infinite; }
.pipeline-detail { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 18px; align-items: center; padding: 22px; border-top: 1px solid var(--line); background: linear-gradient(90deg, var(--primary-soft), transparent 65%); }
.detail-number { display: grid; place-items: center; width: 54px; height: 54px; border: 1px solid var(--line-strong); border-radius: 16px; color: var(--primary); background: var(--surface); font-family: var(--font-mono); font-weight: 700; }
.detail-copy { min-width: 0; }
.detail-copy h3 { margin: 3px 0 4px; font-size: 1.15rem; }
.detail-copy p { margin: 0; color: var(--muted); font-size: .82rem; }
.detail-artifacts { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 7px; max-width: 310px; }

.semantic-grid { grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr); }
.gate-list { display: grid; gap: 10px; margin-top: 30px; }
.gate-list article { display: grid; grid-template-columns: auto 1fr; gap: 14px; padding: 15px 16px; border: 1px solid var(--line); border-radius: 15px; background: var(--surface); }
.gate-list article > span { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; color: var(--primary); background: var(--primary-soft); font-family: var(--font-mono); font-size: .65rem; }
.gate-list strong { font-size: .86rem; }
.gate-list p { margin: 3px 0 0; color: var(--muted); font-size: .78rem; }
.evidence-gallery { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.evidence-gallery button { position: relative; min-width: 0; overflow: hidden; padding: 0; border: 1px solid var(--line); border-radius: 18px; background: #050b14; cursor: zoom-in; }
.evidence-gallery button:hover img { transform: scale(1.025); }
.evidence-gallery img { width: 100%; height: 220px; object-fit: cover; transition: transform .35s var(--ease); }
.evidence-gallery .evidence-main { grid-column: 1 / -1; }
.evidence-gallery .evidence-main img { height: 360px; }
.evidence-gallery button span { position: absolute; left: 12px; bottom: 12px; padding: 6px 9px; border-radius: 9px; color: white; background: rgba(2,8,16,.78); font-size: .65rem; font-weight: 800; backdrop-filter: blur(8px); }

.results-dashboard { display: grid; grid-template-columns: .72fr 1.28fr; gap: 20px; }
.results-summary, .difficulty-results, .end-to-end-note { border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); box-shadow: var(--shadow-sm); }
.results-summary { display: grid; align-content: center; gap: 16px; padding: 26px; }
.score-ring { display: grid; place-items: center; width: min(240px, 75vw); aspect-ratio: 1; margin-inline: auto; border-radius: 50%; background: conic-gradient(var(--primary) calc(var(--score) * 1%), rgba(130,160,200,.13) 0); }
.score-ring::before { content: ""; grid-area: 1/1; width: 76%; aspect-ratio: 1; border-radius: 50%; background: var(--surface-solid); box-shadow: inset 0 0 0 1px var(--line); }
.score-ring > div { position: relative; grid-area: 1/1; text-align: center; }
.score-ring strong { display: block; font-size: clamp(2.3rem, 5vw, 3.7rem); line-height: 1; letter-spacing: -.06em; }
.score-ring span { display: block; margin-top: 8px; color: var(--muted); font-size: .72rem; line-height: 1.4; }
.result-stat { display: grid; grid-template-columns: 1fr auto; gap: 0 14px; padding: 14px 0; border-top: 1px solid var(--line); }
.result-stat span { color: var(--muted); font-size: .76rem; }
.result-stat strong { grid-row: span 2; align-self: center; color: var(--primary); font-size: 1.45rem; font-variant-numeric: tabular-nums; }
.result-stat small { color: var(--subtle); font-size: .66rem; }
.difficulty-results { display: grid; align-content: center; gap: 12px; padding: 22px; }
.difficulty-results article { padding: 20px; border: 1px solid var(--line); border-radius: 16px; background: rgba(255,255,255,.018); }
.difficulty-head { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.difficulty { display: inline-flex; align-items: center; min-height: 27px; padding: 3px 9px; border-radius: 999px; font-size: .64rem; font-weight: 800; text-transform: uppercase; letter-spacing: .07em; }
.difficulty.easy { color: var(--green); background: rgba(92,224,170,.12); }
.difficulty.medium { color: var(--warning); background: rgba(255,196,94,.12); }
.difficulty.hard { color: var(--danger); background: rgba(255,117,143,.12); }
.difficulty-head > strong { font-family: var(--font-mono); font-size: .78rem; }
.progress-track { overflow: hidden; height: 8px; margin: 16px 0; border-radius: 999px; background: rgba(130,160,200,.12); }
.progress-track span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--primary-strong), var(--cyan)); }
.difficulty-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.difficulty-metrics span { color: var(--subtle); font-size: .66rem; }
.difficulty-metrics strong { display: block; margin-top: 2px; color: var(--text); font-size: .78rem; font-variant-numeric: tabular-nums; }
.end-to-end-note { display: grid; grid-template-columns: 180px 180px 1fr; gap: 12px; align-items: center; margin-top: 20px; padding: 20px 22px; }
.end-to-end-note > div { display: flex; flex-direction: column; }
.end-to-end-note span { color: var(--subtle); font-size: .66rem; }
.end-to-end-note strong { margin-top: 4px; color: var(--primary); font-size: 1.7rem; font-variant-numeric: tabular-nums; }
.end-to-end-note p { margin: 0; color: var(--muted); font-size: .78rem; }

.example-tabs { display: inline-flex; gap: 6px; margin-bottom: 22px; padding: 5px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); }
.example-tab { min-height: 44px; }
.example-feature { display: grid; grid-template-columns: minmax(220px, .32fr) minmax(0, .68fr); gap: 28px; align-items: center; padding: 26px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface); box-shadow: var(--shadow-sm); }
.example-feature[hidden] { display: none; }
.example-copy h3 { margin: 14px 0 8px; font-size: clamp(1.7rem, 3vw, 2.6rem); letter-spacing: -.04em; }
.example-copy p { margin: 0; color: var(--muted); font-size: .87rem; }
.example-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 22px; }
.example-metrics span { padding: 13px; border: 1px solid var(--line); border-radius: 13px; background: rgba(255,255,255,.02); }
.example-metrics small { display: block; color: var(--subtle); font-size: .62rem; }
.example-metrics strong { display: block; margin-top: 3px; color: var(--primary); font-size: 1.15rem; font-variant-numeric: tabular-nums; }
.compare-frame { display: grid; grid-template-columns: .62fr 1.38fr; gap: 12px; min-width: 0; }
.compare-frame figure { position: relative; overflow: hidden; min-width: 0; margin: 0; padding: 10px; border: 1px solid rgba(255,255,255,.06); border-radius: 17px; background: #07101b; }
.compare-frame img { width: 100%; height: 320px; object-fit: contain; border-radius: 10px; }
.compare-frame figcaption { position: absolute; left: 17px; bottom: 17px; padding: 6px 9px; border-radius: 9px; color: white; background: rgba(2,8,16,.78); font-size: .64rem; font-weight: 800; }

.interpretation-grid { align-items: start; }
.truth-callout { display: flex; gap: 14px; margin-top: 30px; padding: 18px; border: 1px solid rgba(255,196,94,.24); border-radius: 17px; background: rgba(255,196,94,.06); }
.truth-callout svg { flex: 0 0 auto; width: 22px; height: 22px; margin-top: 2px; color: var(--warning); }
.truth-callout strong { font-size: .9rem; }
.truth-callout p { margin: 4px 0 0; color: var(--muted); font-size: .78rem; }
.limitations-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.limitations-grid article { padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); }
.limitations-grid article > span { color: var(--primary); font-family: var(--font-mono); font-size: .68rem; }
.limitations-grid h3 { margin: 18px 0 7px; font-size: 1rem; }
.limitations-grid p { margin: 0; color: var(--muted); font-size: .78rem; }

.install-steps { display: grid; gap: 12px; }
.install-step { display: grid; grid-template-columns: auto minmax(0,1fr) auto; gap: 18px; align-items: start; padding: 20px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); }
.install-number { display: grid; place-items: center; width: 44px; height: 44px; border: 1px solid var(--line-strong); border-radius: 13px; color: var(--primary); background: var(--primary-soft); font-family: var(--font-mono); font-size: .7rem; font-weight: 700; }
.install-step strong { display: block; margin-bottom: 10px; font-size: .86rem; }
.install-step pre { margin: 0; min-width: 0; overflow-x: auto; white-space: pre-wrap; overflow-wrap: anywhere; }
.install-step code { color: var(--muted); font-family: var(--font-mono); font-size: .72rem; line-height: 1.65; }
.copy-code { display: grid; place-items: center; min-width: 44px; min-height: 44px; padding: 0; border: 1px solid var(--line); border-radius: 12px; color: var(--muted); background: rgba(255,255,255,.025); cursor: pointer; }
.copy-code:hover { color: var(--text); border-color: var(--line-strong); }
.copy-code svg { width: 18px; height: 18px; }
.resource-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 28px; }
.resource-card { display: grid; grid-template-columns: auto 1fr auto; gap: 14px; align-items: center; min-width: 0; min-height: 104px; padding: 18px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); text-decoration: none; transition: border-color .2s ease, transform .2s var(--ease), background .2s ease; }
.resource-card:hover { transform: translateY(-3px); border-color: var(--line-strong); background: var(--surface-2); }
.resource-icon { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 14px; color: white; background: linear-gradient(145deg, var(--primary-strong), var(--purple)); }
.resource-icon svg { width: 21px; height: 21px; }
.resource-card div { min-width: 0; display: flex; flex-direction: column; }
.resource-card strong { font-size: .86rem; }
.resource-card small { margin-top: 4px; color: var(--subtle); font-size: .68rem; }
.resource-arrow { color: var(--primary); }

.citation-section { border-top: 1px solid var(--line); background: var(--bg-deep); }
.citation-grid { grid-template-columns: minmax(0, .7fr) minmax(0, 1.3fr); }
.citation-box { position: relative; min-width: 0; }
.citation-box pre { margin: 0; overflow-x: auto; padding: 26px; border: 1px solid var(--line); border-radius: 20px; color: #d9e8ff; background: #050c18; font-family: var(--font-mono); font-size: .76rem; line-height: 1.75; }
.copy-bibtex { position: absolute; z-index: 2; right: 12px; top: 12px; color: white; background: rgba(255,255,255,.08); }

.site-footer { padding: 40px 0 calc(40px + env(safe-area-inset-bottom)); border-top: 1px solid var(--line); background: #030812; color: #edf5ff; }
.footer-grid { display: grid; grid-template-columns: 1.1fr auto .9fr; gap: 26px; align-items: center; }
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-brand p { margin: 3px 0 0; color: #8fa3be; font-size: .74rem; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 18px; }
.footer-links a { color: #aabbd0; font-size: .76rem; text-decoration: none; }
.footer-links a:hover { color: white; }
.footer-credit { margin: 0; color: #7d91ad; font-size: .7rem; text-align: right; }

.lightbox { width: min(96vw, 1540px); max-width: none; padding: 58px 18px 18px; border: 1px solid rgba(255,255,255,.14); border-radius: 22px; background: #030812; box-shadow: 0 40px 120px rgba(0,0,0,.68); }
.lightbox::backdrop { background: rgba(1,4,10,.82); backdrop-filter: blur(10px); }
.lightbox img { width: 100%; max-height: 82dvh; object-fit: contain; border-radius: 12px; }
.lightbox-close { position: absolute; right: 12px; top: 10px; color: white; background: rgba(255,255,255,.08); }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .65s var(--ease), transform .65s var(--ease); transition-delay: var(--delay, 0ms); }
.reveal.visible { opacity: 1; transform: none; }

:focus-visible { outline: 3px solid color-mix(in srgb, var(--primary) 78%, white); outline-offset: 3px; }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes orbit { to { transform: rotate(360deg); } }
@keyframes signal { from { transform: translateX(0); } to { transform: translateX(20px); } }

@media (max-width: 1120px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { max-width: 860px; }
  .hero-stage { width: min(100%, 760px); margin-inline: auto; }
  .hero-viewer { transform: none; }
  .metric-grid { grid-template-columns: repeat(5, minmax(0,1fr)); }
  .bento-card { grid-column: span 6; }
  .bento-large, .bento-wide { grid-column: span 12; }
  .results-dashboard { grid-template-columns: 1fr; }
  .results-summary { grid-template-columns: minmax(220px, .55fr) 1fr 1fr; align-items: center; }
  .result-stat { display: flex; flex-direction: column; }
  .result-stat strong { order: 2; }
  .result-stat small { order: 3; }
  .pipeline-map { grid-template-columns: 170px 26px 270px 26px 220px 26px 240px; }
}

@media (max-width: 900px) {
  :root { --header-h: 70px; }
  .container { width: min(calc(100% - 32px), var(--container)); }
  .nav-toggle { display: inline-grid; }
  .site-nav {
    position: fixed;
    inset: calc(76px + env(safe-area-inset-top)) 16px auto;
    display: grid;
    gap: 4px;
    max-height: calc(100dvh - 100px);
    overflow-y: auto;
    padding: 12px;
    border: 1px solid var(--line-strong);
    border-radius: 20px;
    background: color-mix(in srgb, var(--surface-solid) 95%, transparent);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(24px);
    opacity: 0;
    transform: translateY(-12px) scale(.98);
    pointer-events: none;
    transition: opacity .2s ease, transform .2s var(--ease);
  }
  .site-nav.open { opacity: 1; transform: none; pointer-events: auto; }
  .site-nav > a { min-height: 48px; display: flex; align-items: center; padding: 0 14px; border-radius: 12px; }
  .site-nav > a::after { display: none; }
  .site-nav > a:hover, .site-nav > a.active { background: var(--primary-soft); }
  .site-nav .nav-paper { justify-content: center; }
  .theme-toggle { width: 100%; }
  .showreel-grid, .semantic-grid, .interpretation-grid, .citation-grid { grid-template-columns: 1fr; }
  .model-story-grid { grid-template-columns: 1fr; }
  .metric-grid { grid-template-columns: repeat(3, 1fr); }
  .metric-grid article { border-bottom: 1px solid var(--line); }
  .metric-grid article:nth-child(3) { border-right: 0; }
  .metric-grid article:nth-child(n+4) { border-bottom: 0; }
  .metric-grid article:last-child { border-right: 1px solid var(--line); }
  .metric-grid article:nth-child(5) { grid-column: span 2; border-right: 0; }
  .bento-split { grid-template-columns: 1fr; }
  .example-feature { grid-template-columns: 1fr; }
  .compare-frame img { height: 270px; }
  .resource-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; text-align: center; }
  .footer-brand { justify-content: center; }
  .footer-credit { text-align: center; }
  .pipeline-map { grid-template-columns: 1fr; gap: 0; overflow: visible; }
  .pipeline-stage { width: 100%; }
  .pipeline-arrow { min-width: 0; min-height: 32px; }
  .pipeline-arrow::before { left: 50%; right: auto; top: 2px; width: 2px; height: 24px; }
  .pipeline-arrow::after { left: calc(50% - 5px); right: auto; top: auto; bottom: 1px; width: 0; height: 0; border: 0; border-left: 5px solid transparent; border-right: 5px solid transparent; border-top: 7px solid var(--cyan); transform: none; }
  .pipeline-arrow span { top: 1px; left: calc(50% - 4px); }
  .pipeline-app.playing .pipeline-arrow span { animation-name: signal-mobile; }
  .pipeline-detail { grid-template-columns: auto 1fr; }
  .detail-artifacts { grid-column: 1 / -1; justify-content: flex-start; max-width: none; }
}

@media (max-width: 680px) {
  .container { width: min(calc(100% - 24px), var(--container)); }
  .section-pad { padding-block: 72px; }
  .section-heading { margin-bottom: 34px; }
  .hero { min-height: auto; padding-top: calc(var(--header-h) + 64px); padding-bottom: 68px; }
  .brand-copy small { display: none; }
  .hero h1 { font-size: clamp(4rem, 25vw, 6.4rem); margin-top: 22px; }
  .hero-kicker { font-size: 1.02rem; }
  .hero-summary { font-size: .96rem; }
  .hero-actions { display: grid; grid-template-columns: 1fr; }
  .button { width: 100%; }
  .viewer-card { border-radius: 22px; }
  .viewer-canvas-wrap { min-height: 330px; aspect-ratio: .92/1; }
  .viewer-topbar, .viewer-controls { padding: 13px; }
  .viewer-topbar strong { max-width: 180px; }
  .viewer-controls { align-items: stretch; }
  .model-tabs { width: 100%; display: grid; grid-template-columns: repeat(3, 1fr); }
  .model-tab { padding-inline: 5px; }
  .viewer-actions { width: 100%; justify-content: flex-end; }
  .part-legend { padding-inline: 13px; }
  .viewer-hint { max-width: calc(100% - 28px); }
  .metric-grid { grid-template-columns: 1fr 1fr; }
  .metric-grid article { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .metric-grid article:nth-child(2n) { border-right: 0; }
  .metric-grid article:nth-child(3) { border-right: 1px solid var(--line); }
  .metric-grid article:nth-child(n+4) { border-bottom: 1px solid var(--line); }
  .metric-grid article:nth-child(5) { grid-column: 1 / -1; border-right: 0; border-bottom: 0; }
  .bento-grid { grid-template-columns: 1fr; }
  .bento-card, .bento-large, .bento-wide { grid-column: auto; min-height: 0; }
  .mini-chart { min-height: 150px; padding: 16px; gap: 5px; }
  .video-toggle { min-height: 48px; }
  .video-caption { left: 14px; right: 14px; bottom: 12px; }
  .pipeline-toolbar { align-items: flex-start; }
  .pipeline-toolbar-actions { width: 100%; display: grid; grid-template-columns: 1fr 1fr; }
  .pipeline-toolbar { flex-direction: column; }
  .compact-button { padding-inline: 10px; }
  .compact-button span { white-space: nowrap; }
  .pipeline-map {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 12px;
    overflow: visible;
  }
  .pipeline-arrow { min-height: 28px; }
  .pipeline-arrow::before { left: 50%; right: auto; top: 2px; bottom: 5px; width: 2px; height: auto; }
  .pipeline-arrow::after { left: calc(50% - 4px); right: auto; top: auto; bottom: 1px; transform: rotate(135deg); }
  .pipeline-arrow span { left: calc(50% - 4px); top: 0; }
  .pipeline-app.playing .pipeline-arrow span { animation: signal-mobile 1.4s linear infinite; }
  .cad-grid { grid-template-columns: 1fr; }
  .pipeline-detail { grid-template-columns: 1fr; gap: 12px; }
  .detail-number { width: 46px; height: 46px; }
  .evidence-gallery { grid-template-columns: 1fr; }
  .evidence-gallery .evidence-main { grid-column: auto; }
  .evidence-gallery img, .evidence-gallery .evidence-main img { height: 260px; }
  .results-summary { grid-template-columns: 1fr; }
  .score-ring { width: min(220px, 72vw); }
  .difficulty-metrics { gap: 5px; }
  .end-to-end-note { grid-template-columns: 1fr 1fr; }
  .end-to-end-note p { grid-column: 1 / -1; }
  .example-tabs { display: grid; grid-template-columns: repeat(3, 1fr); width: 100%; }
  .example-tab { padding-inline: 6px; }
  .example-feature { padding: 18px; }
  .compare-frame { grid-template-columns: 1fr; }
  .compare-frame img { height: 240px; }
  .limitations-grid { grid-template-columns: 1fr; }
  .install-step { grid-template-columns: auto 1fr; gap: 12px; }
  .copy-code { grid-column: 2; justify-self: start; }
  .citation-box pre { padding: 72px 18px 20px; font-size: .68rem; }
  .copy-bibtex { right: 10px; top: 10px; }
}

@media (max-width: 430px) {
  .container { width: min(calc(100% - 20px), var(--container)); }
  .section-heading h2, .showreel-copy h2, .semantic-copy h2, .interpretation-copy h2, .citation-copy h2 { font-size: 2.25rem; }
  .status-pill { font-size: .65rem; }
  .hero h1 { font-size: 4.2rem; }
  .viewer-canvas-wrap { min-height: 300px; }
  .live-badge { display: none; }
  .viewer-topbar strong { max-width: 210px; }
  .metric-grid article { padding: 22px 14px; }
  .pipeline-toolbar-actions { grid-template-columns: 1fr; }
  .pipeline-toolbar-actions .compact-button { width: 100%; }
  .difficulty-metrics { grid-template-columns: 1fr; }
  .difficulty-metrics span { display: flex; justify-content: space-between; }
  .difficulty-metrics strong { display: inline; }
  .end-to-end-note { grid-template-columns: 1fr; }
  .end-to-end-note p { grid-column: auto; }
  .example-tabs { overflow-x: auto; display: flex; }
  .example-tab { min-width: 110px; }
  .footer-brand { align-items: flex-start; text-align: left; }
}

@keyframes signal-mobile { from { transform: translateY(0); } to { transform: translateY(20px); } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
  .hero-viewer { transform: none; }
}

/* Live STL artifact additions */
.viewer-loading strong { color: inherit; font-size: .75rem; font-weight: 700; }
a.viewer-action { color: inherit; text-decoration: none; }
.viewer-action[hidden] { display: none; }
.artifact-strip {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  margin-top: 28px;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  background: linear-gradient(125deg, var(--primary-soft), color-mix(in srgb, var(--surface) 88%, transparent));
  box-shadow: var(--shadow-sm);
}
.artifact-strip-copy { min-width: 0; }
.artifact-strip-copy strong { display: block; margin-top: 8px; font-size: clamp(1.1rem, 2vw, 1.45rem); }
.artifact-strip-copy p { max-width: 780px; margin: 9px 0 0; color: var(--muted); font-size: .82rem; }
.artifact-strip-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px; }
.resource-grid { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

@media (max-width: 760px) {
  .artifact-strip { grid-template-columns: 1fr; }
  .artifact-strip-actions { display: grid; grid-template-columns: 1fr; justify-content: stretch; }
  .artifact-strip-actions .button { width: 100%; }
}
.live-badge b { font: inherit; color: inherit; white-space: nowrap; }

/* Reliable zero-dependency STL viewer recovery states */
.viewer-recovery {
  position: absolute;
  z-index: 5;
  inset: 0;
  display: none;
  place-content: center;
  justify-items: center;
  gap: 10px;
  padding: 28px;
  text-align: center;
  background: color-mix(in srgb, var(--surface) 86%, transparent);
  backdrop-filter: blur(12px);
}
.viewer-card.failed .viewer-recovery,
.viewer-card.needs-file .viewer-recovery { display: grid; }
.viewer-card.failed .viewer-loading,
.viewer-card.needs-file .viewer-loading { opacity: 0; pointer-events: none; }
.viewer-card.failed .viewer-fallback,
.viewer-card.needs-file .viewer-fallback { opacity: .24; }
.viewer-recovery-icon {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  color: var(--primary);
  background: var(--surface-2);
  font-family: var(--font-mono);
  font-weight: 800;
  box-shadow: var(--shadow-sm);
}
.viewer-recovery strong { font-size: 1rem; }
.viewer-recovery p { max-width: 48ch; margin: 0; color: var(--muted); font-size: .78rem; line-height: 1.55; }
.viewer-recovery-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 4px; }
.stl-file-button { cursor: pointer; }
.viewer-card.ready .cad-canvas { opacity: 1; }
.viewer-card.loading .cad-canvas { opacity: .55; }
.cad-canvas { transition: opacity .25s ease; }

/* Link-driven project video player */
.video-player {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: #020611;
  box-shadow: var(--shadow-lg);
}
.drive-video-stage {
  position: relative;
  aspect-ratio: 16 / 9;
  min-height: 240px;
  background: #020611;
}
.drive-video-stage iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}
.drive-video-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 14px;
  padding: 28px;
  text-align: center;
  background:
    radial-gradient(circle at 50% 24%, rgba(84, 130, 255, .22), transparent 36%),
    linear-gradient(145deg, #07101f, #020611);
}
.drive-video-placeholder p {
  max-width: 52ch;
  margin: 0;
  color: rgba(255,255,255,.72);
  font-size: .8rem;
  line-height: 1.6;
}
.drive-video-placeholder code {
  color: #8cf5df;
  font-size: .72rem;
  word-break: break-word;
}
.drive-mark {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 50%;
  color: white;
  background: rgba(83, 126, 255, .25);
  box-shadow: 0 0 42px rgba(83, 126, 255, .28);
}
@media (max-width: 560px) {
  .viewer-recovery { padding: 18px; }
  .viewer-recovery-actions { width: 100%; }
  .viewer-recovery-actions .compact-button { flex: 1 1 140px; justify-content: center; }
  .drive-video-stage { min-height: 190px; }
  .drive-video-placeholder { padding: 20px; }
}
.drive-video-placeholder[hidden], .drive-video-stage iframe[hidden] { display: none; }


/* Updated controlled benchmark */
.benchmark-hero{display:grid;grid-template-columns:1fr auto 1fr minmax(190px,.7fr);gap:16px;align-items:stretch;margin-top:30px;padding:18px;border:1px solid var(--line);border-radius:var(--radius-lg);background:linear-gradient(135deg,color-mix(in srgb,var(--primary-soft) 70%,transparent),var(--surface));box-shadow:var(--shadow-sm)}
.benchmark-score,.benchmark-delta{padding:22px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.018)}
.benchmark-score-primary{border-color:color-mix(in srgb,var(--primary) 45%,var(--line));background:color-mix(in srgb,var(--primary-soft) 55%,transparent)}
.benchmark-method{display:block;color:var(--subtle);font:600 .68rem/1 var(--font-mono);letter-spacing:.08em;text-transform:uppercase}
.benchmark-score>strong{display:block;margin-top:18px;font-size:clamp(2.2rem,5vw,4rem);line-height:.95;letter-spacing:-.065em}
.benchmark-score p{margin:8px 0 18px;color:var(--muted);font-size:.78rem}
.benchmark-bar{height:8px;overflow:hidden;border-radius:999px;background:rgba(130,160,200,.12)}
.benchmark-bar span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--primary),var(--secondary))}
.benchmark-bar.baseline span{background:var(--subtle)}
.benchmark-versus{align-self:center;color:var(--subtle);font:700 .72rem/1 var(--font-mono);text-transform:uppercase}
.benchmark-delta{display:flex;flex-direction:column;justify-content:center}
.benchmark-delta small{color:var(--subtle);font:600 .65rem/1 var(--font-mono);text-transform:uppercase;letter-spacing:.07em}
.benchmark-delta strong{margin:10px 0;font-size:clamp(1.7rem,3.5vw,2.6rem);letter-spacing:-.05em;color:var(--primary)}
.benchmark-delta span{color:var(--muted);font-size:.72rem;line-height:1.55}
.score-comparison-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:18px}
.score-comparison-card,.difficulty-comparison,.statistics-note,.result-explorer{border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow-sm)}
.score-comparison-card{padding:24px}
.comparison-title{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:8px}
.comparison-title>span{font-size:1rem;font-weight:800;letter-spacing:-.025em}
.comparison-title>strong{color:var(--subtle);font:600 .62rem/1 var(--font-mono);text-transform:uppercase;letter-spacing:.06em}
.score-comparison-card>p{margin:0 0 18px;color:var(--muted);font-size:.76rem}
.metric-comparison-row{display:grid;grid-template-columns:1fr 56px 1fr;gap:10px;align-items:center;padding:14px 0;border-top:1px solid var(--line)}
.metric-comparison-row>div:not(.metric-ratio){padding:12px;border-radius:13px;background:rgba(255,255,255,.02)}
.metric-comparison-row small,.metric-comparison-row span{display:block;color:var(--subtle);font-size:.61rem}
.metric-comparison-row strong{display:block;margin:4px 0;color:var(--primary);font-size:1.55rem;font-variant-numeric:tabular-nums;letter-spacing:-.04em}
.metric-comparison-row>div:last-child strong{color:var(--text)}
.metric-ratio{display:grid;place-items:center;min-height:42px;border:1px solid var(--line);border-radius:999px;color:var(--primary);font:700 .68rem/1 var(--font-mono)}
.metric-ratio.neutral{color:var(--subtle)}
.difficulty-comparison{margin-top:18px;padding:24px}
.difficulty-compare-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}
.difficulty-compare-grid article{padding:17px;border:1px solid var(--line);border-radius:15px;background:rgba(255,255,255,.018)}
.difficulty-compare-grid p{margin:9px 0 0;color:var(--subtle);font-size:.65rem}
.dual-progress{position:relative;height:18px;margin-top:14px;border-radius:999px;background:rgba(130,160,200,.1)}
.dual-progress span{position:absolute;left:0;border-radius:999px}
.dual-progress .cad{top:0;height:8px;background:linear-gradient(90deg,var(--primary),var(--secondary))}
.dual-progress .base{bottom:0;height:6px;background:var(--subtle)}
.comparison-legend{display:flex;justify-content:flex-end;gap:18px;margin-top:14px;color:var(--subtle);font-size:.64rem}
.comparison-legend span{display:flex;align-items:center;gap:7px}.comparison-legend i{width:20px;height:5px;border-radius:99px}.legend-cad{background:var(--primary)}.legend-base{background:var(--subtle)}
.statistics-note{display:grid;grid-template-columns:.75fr 1.25fr;gap:28px;align-items:center;margin-top:18px;padding:26px;background:linear-gradient(135deg,color-mix(in srgb,var(--primary-soft) 45%,transparent),var(--surface))}
.statistics-note h3{margin:8px 0 0;font-size:clamp(1.25rem,2.6vw,1.9rem);letter-spacing:-.04em}.statistics-note p{margin:0;color:var(--muted);font-size:.8rem;line-height:1.7}.statistics-note p strong{color:var(--text)}
.result-explorer{margin-top:18px;padding:26px}
.result-explorer-head{display:flex;justify-content:space-between;gap:24px;align-items:flex-end}.result-explorer-head h3{margin:7px 0;font-size:clamp(1.35rem,2.8vw,2rem);letter-spacing:-.04em}.result-explorer-head p{margin:0;color:var(--muted);font-size:.76rem}
.result-filters{display:flex;gap:6px;padding:5px;border:1px solid var(--line);border-radius:13px;background:rgba(255,255,255,.02)}.result-filters button{min-height:38px;padding:0 13px;border:0;border-radius:9px;background:transparent;color:var(--muted);font:600 .68rem/1 var(--font-mono);cursor:pointer}.result-filters button:hover,.result-filters button.active{color:var(--text);background:var(--primary-soft)}
.result-sample-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:22px}
.result-sample-card{padding:16px;border:1px solid var(--line);border-radius:15px;background:rgba(255,255,255,.018);transition:transform .2s ease,border-color .2s ease}.result-sample-card:hover{transform:translateY(-2px);border-color:var(--line-strong)}
.result-sample-head{display:flex;justify-content:space-between;gap:12px;align-items:start}.result-sample-head h4{margin:0;font-size:.88rem;line-height:1.25;text-transform:capitalize}.result-sample-head .difficulty{flex:none}
.result-method-row{display:grid;grid-template-columns:1fr auto;gap:6px;align-items:center;margin-top:12px;padding-top:11px;border-top:1px solid var(--line)}.result-method-row span{color:var(--subtle);font-size:.63rem}.result-method-row strong{font:700 .68rem/1 var(--font-mono)}.result-method-row small{grid-column:1/-1;color:var(--muted);font-size:.61rem}.result-method-row.cadviga strong{color:var(--primary)}.no-result{color:var(--subtle)!important}
.result-data-actions{display:flex;gap:16px;align-items:center;flex-wrap:wrap;margin-top:22px}.text-link{color:var(--primary);font-size:.72rem;font-weight:700}.result-loading{grid-column:1/-1;color:var(--muted);text-align:center}
.result-showcase{grid-template-columns:minmax(230px,.34fr) minmax(0,.66fr)}.showcase-downloads{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}.showcase-downloads a{padding:8px 10px;border:1px solid var(--line);border-radius:9px;color:var(--text);font:600 .64rem/1 var(--font-mono);background:rgba(255,255,255,.02)}.showcase-downloads a:hover{border-color:var(--primary);color:var(--primary)}
.showcase-evidence{display:grid;grid-template-columns:minmax(180px,.8fr) minmax(220px,1.2fr);gap:16px;align-items:stretch}.showcase-evidence figure{margin:0;display:grid;align-content:start;padding:10px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.02)}.showcase-evidence img{width:100%;height:auto;aspect-ratio:1;object-fit:contain;border-radius:10px;background:#fff}.showcase-evidence figcaption{padding:10px 4px 2px;color:var(--subtle);font-size:.62rem}
.attempt-profile{display:grid;align-content:center;gap:12px;padding:20px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.018)}.attempt-profile>span{font-weight:800;font-size:.82rem}.attempt-profile>div{display:grid;grid-template-columns:28px 1fr 55px;gap:8px;align-items:center}.attempt-profile b,.attempt-profile strong{font:600 .64rem/1 var(--font-mono)}.attempt-profile strong{text-align:right}.attempt-profile i{height:8px;border-radius:999px;background:linear-gradient(90deg,var(--primary) var(--value),rgba(130,160,200,.12) var(--value))}.attempt-profile small{color:var(--subtle);font-size:.62rem}
.resource-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
@media(max-width:1050px){.benchmark-hero{grid-template-columns:1fr 1fr}.benchmark-versus{display:none}.benchmark-delta{grid-column:1/-1}.result-sample-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.resource-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){.benchmark-hero,.score-comparison-grid,.difficulty-compare-grid,.statistics-note{grid-template-columns:1fr}.benchmark-delta{grid-column:auto}.result-explorer-head{display:grid}.result-filters{width:100%;overflow:auto}.result-filters button{flex:1;min-width:70px}.result-sample-grid{grid-template-columns:1fr}.result-showcase,.showcase-evidence{grid-template-columns:1fr}.metric-comparison-row{grid-template-columns:1fr}.metric-ratio{min-height:34px;width:48px;margin:auto}.comparison-title{align-items:flex-start;flex-direction:column}.resource-grid{grid-template-columns:1fr}.benchmark-score>strong{font-size:2.8rem}}
@media(max-width:430px){.benchmark-hero,.score-comparison-card,.difficulty-comparison,.statistics-note,.result-explorer{padding:17px}.result-data-actions .button{width:100%;justify-content:center}.showcase-evidence figure{padding:7px}}

/* Demo video play control */
.showreel-copy h2 { margin-bottom: 0; }
.drive-play-button {
  position: absolute;
  z-index: 3;
  inset: 50% auto auto 50%;
  width: clamp(64px, 8vw, 86px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid rgba(255,255,255,.32);
  border-radius: 50%;
  color: #fff;
  background: rgba(8,15,29,.78);
  box-shadow: 0 18px 50px rgba(0,0,0,.4), 0 0 0 10px rgba(255,255,255,.06);
  backdrop-filter: blur(12px);
  transform: translate(-50%,-50%);
  cursor: pointer;
  transition: transform .2s ease, background .2s ease, border-color .2s ease;
}
.drive-play-button:hover { transform: translate(-50%,-50%) scale(1.06); background: rgba(32,78,190,.9); border-color: rgba(255,255,255,.65); }
.drive-play-button:focus-visible { outline: 3px solid var(--primary); outline-offset: 5px; }
.drive-play-button svg { width: 38%; fill: currentColor; stroke: none; transform: translateX(5%); }
.drive-play-button[hidden] { display: none; }

.model-story-grid-single { grid-template-columns: minmax(0, 1fr); max-width: 760px; }