:root {
  --bg: #0a0a09;
  --bg-elevated: #10100e;
  --bg-soft: #15130f;
  --text: #f2eee7;
  --muted: #aaa49b;
  --faint: #777168;
  --line: rgba(242,238,231,.14);
  --line-strong: rgba(242,238,231,.28);
  --accent: #b98745;
  --accent-soft: rgba(185,135,69,.13);
  --danger: #e08a78;
  --content: 1440px;
  --measure: 70ch;
  --radius: 22px;
  --shadow: 0 28px 80px rgba(0,0,0,.22);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color-scheme: dark;
}
html[data-theme="light"] {
  --bg: #f3f0e9;
  --bg-elevated: #faf8f3;
  --bg-soft: #ebe5d9;
  --text: #171614;
  --muted: #6e6961;
  --faint: #918a80;
  --line: rgba(23,22,20,.12);
  --line-strong: rgba(23,22,20,.24);
  --accent: #946323;
  --accent-soft: rgba(148,99,35,.11);
  --shadow: 0 28px 80px rgba(60,45,25,.09);
  color-scheme: light;
}
@media (prefers-color-scheme: light) {
  html[data-theme="system"] {
    --bg: #f3f0e9; --bg-elevated: #faf8f3; --bg-soft: #ebe5d9; --text: #171614; --muted: #6e6961; --faint: #918a80;
    --line: rgba(23,22,20,.12); --line-strong: rgba(23,22,20,.24); --accent: #946323; --accent-soft: rgba(148,99,35,.11); --shadow: 0 28px 80px rgba(60,45,25,.09); color-scheme: light;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body { margin: 0; min-width: 320px; background: var(--bg); color: var(--text); font-size: 16px; line-height: 1.62; text-rendering: optimizeLegibility; }
a { color: inherit; text-underline-offset: .22em; }
button, select, input { font: inherit; }
button, select, input, a { -webkit-tap-highlight-color: transparent; }
button, select, input[type="number"] { min-height: 44px; }
canvas { display: block; width: 100%; height: 100%; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.site-header {
  position: sticky; top: 0; z-index: 30; display: grid; grid-template-columns: 1fr auto; grid-template-areas: "brand tools" "nav nav";
  gap: .7rem 1rem; align-items: center; padding: .85rem max(1rem, env(safe-area-inset-left)) .7rem;
  border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(18px);
}
.brand { grid-area: brand; display: inline-flex; flex-direction: column; width: fit-content; text-decoration: none; line-height: 1; }
.brand strong { font-size: 1.15rem; font-weight: 420; letter-spacing: -.045em; }
.brand span { margin-top: .3rem; color: var(--faint); font-size: .46rem; letter-spacing: .2em; text-transform: uppercase; }
.primary-nav { grid-area: nav; display: flex; gap: 1rem; overflow-x: auto; padding-bottom: .15rem; scrollbar-width: none; }
.primary-nav::-webkit-scrollbar { display: none; }
.primary-nav a { flex: 0 0 auto; padding: .25rem 0; color: var(--muted); font-size: .68rem; letter-spacing: .07em; text-transform: uppercase; text-decoration: none; }
.primary-nav a[aria-current="page"], .primary-nav a:hover { color: var(--text); }
.header-tools { grid-area: tools; display: flex; gap: .45rem; align-items: center; justify-content: flex-end; }
.select-control { position: relative; display: inline-flex; align-items: center; }
.select-control > span { position: absolute; inline-size: 1px; block-size: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.select-control select { border: 1px solid var(--line); border-radius: 999px; padding: 0 1.8rem 0 .72rem; background: var(--bg); color: var(--text); font-size: .72rem; }
.language-form { margin: 0; }
.lab-badge { border: 1px solid var(--accent); border-radius: 999px; padding: .3rem .55rem; color: var(--accent); font-size: .62rem; letter-spacing: .12em; }

.eyebrow { margin: 0 0 .85rem; color: var(--faint); font-size: .64rem; font-weight: 600; letter-spacing: .2em; text-transform: uppercase; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: .55rem; min-height: 44px; border: 1px solid var(--line-strong); border-radius: 999px; padding: .68rem 1.05rem; background: transparent; color: var(--text); text-decoration: none; font-size: .76rem; font-weight: 600; letter-spacing: .035em; cursor: pointer; transition: transform .18s ease, border-color .18s ease, background .18s ease; }
.button:hover:not(:disabled) { transform: translateY(-1px); border-color: var(--accent); }
.button:disabled { opacity: .42; cursor: not-allowed; }
.button.primary { background: var(--text); color: var(--bg); border-color: var(--text); }
.button.secondary { background: var(--bg-elevated); }
.text-button { min-height: 44px; border: 0; padding: .5rem .2rem; background: transparent; color: var(--muted); text-decoration: underline; text-underline-offset: .25em; cursor: pointer; }

.hero-v15 { width: min(calc(100% - 2rem), var(--content)); margin: 0 auto; padding: clamp(2.5rem, 7vw, 7rem) 0 clamp(3rem, 7vw, 6rem); display: grid; gap: clamp(2rem, 5vw, 4.5rem); }
.hero-copy-v15 { max-width: 68rem; }
.hero-copy-v15 h1, .page-intro h1 { margin: 0; max-width: 25ch; font-size: clamp(2.7rem, 9vw, 6.1rem); line-height: .98; letter-spacing: -.055em; font-weight: 300; text-wrap: balance; }
.hero-lead, .lead { max-width: var(--measure); margin: 1.45rem 0 0; color: var(--muted); font-size: clamp(1.03rem, 1.8vw, 1.28rem); line-height: 1.65; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem 1.1rem; align-items: center; margin-top: 1.65rem; }
.hero-actions p { max-width: 46rem; margin: 0; color: var(--faint); font-size: .84rem; }
.artwork-zone { min-width: 0; }
.artwork-shell-v15 { margin: 0; }
.artwork-card-v15 { position: relative; aspect-ratio: 16 / 10; min-height: 24rem; overflow: hidden; border: 1px solid var(--line-strong); border-radius: var(--radius); background: radial-gradient(circle at 52% 45%, var(--accent-soft), transparent 28%), linear-gradient(145deg, var(--bg-elevated), var(--bg)); box-shadow: var(--shadow); }
.artwork-card-v15::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(120deg, transparent 10%, color-mix(in srgb, var(--text) 2%, transparent), transparent 75%); }
.state-chip { position: absolute; inset-inline-start: 1rem; inset-block-end: 1rem; z-index: 2; display: inline-flex; align-items: baseline; gap: .5rem; border: 1px solid var(--line); border-radius: 999px; padding: .4rem .65rem; background: color-mix(in srgb, var(--bg) 84%, transparent); font-size: .58rem; letter-spacing: .12em; }
.state-chip strong { font-size: .72rem; font-weight: 650; }
.artwork-shell-v15 figcaption { display: grid; gap: .6rem 1rem; padding: .9rem .15rem 0; color: var(--muted); }
.artwork-shell-v15 figcaption p { max-width: 58rem; margin: 0; }
.state-inline { display: flex; flex-wrap: wrap; gap: .4rem 1rem; color: var(--faint); font-size: .78rem; }

.editorial-grid { width: min(calc(100% - 2rem), var(--content)); margin: 0 auto; padding: 0 0 clamp(4rem, 9vw, 8rem); display: grid; gap: 1rem; }
.editorial-grid article, .prose-grid article, .gesture-catalog article { border-top: 1px solid var(--line); padding: 1.4rem 0; }
.editorial-grid h2, .prose-grid h2, .timeline-story h2 { margin: 0; max-width: 28ch; font-size: clamp(1.45rem, 3vw, 2.35rem); line-height: 1.12; letter-spacing: -.035em; font-weight: 360; text-wrap: balance; }
.editorial-grid article > p:last-child, .prose-grid article > p, .timeline-story article p { max-width: var(--measure); margin: .85rem 0 0; color: var(--muted); }

.page-shell { width: min(calc(100% - 2rem), 1240px); margin: 0 auto; padding: clamp(3rem, 8vw, 7rem) 0 clamp(5rem, 10vw, 9rem); }
.page-shell.narrow { max-width: 760px; min-height: 70svh; }
.page-intro { margin-bottom: clamp(3rem, 8vw, 7rem); }
.page-intro h1 { max-width: 18ch; }
.prose-grid { display: grid; gap: 1.3rem 2.2rem; }
.prose-grid.three { grid-template-columns: 1fr; }
.gesture-catalog { margin-top: clamp(3rem, 8vw, 6rem); display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-bottom: 1px solid var(--line); }
.gesture-catalog article { padding-inline-end: 1rem; }
.gesture-catalog article > span { color: var(--accent); font-size: .65rem; letter-spacing: .14em; }
.gesture-catalog h3 { margin: .7rem 0 .35rem; font-size: 1.05rem; font-weight: 520; }
.gesture-catalog p { margin: 0; color: var(--muted); font-size: .88rem; }
.timeline-story { border-top: 1px solid var(--line); }
.timeline-story article { display: grid; gap: .7rem 1.5rem; padding: 2rem 0; border-bottom: 1px solid var(--line); }
.timeline-story time { color: var(--accent); font-size: .7rem; font-weight: 650; letter-spacing: .12em; }
.timeline-story article.current { background: linear-gradient(90deg, var(--accent-soft), transparent); padding-inline: 1rem; }

.memory-explorer { display: grid; gap: 1.3rem; }
.memory-canvas { aspect-ratio: 16 / 9; min-height: 22rem; }
.memory-panel { display: grid; gap: 1rem; align-content: start; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.2rem; background: var(--bg-elevated); }
.memory-current { margin: 0; font-size: 1.1rem; }
.memory-nav { display: flex; flex-wrap: wrap; gap: .6rem; }
.state-jump { display: grid; grid-template-columns: 1fr auto; gap: .5rem; align-items: end; max-width: 22rem; }
.state-jump > span { grid-column: 1 / -1; color: var(--muted); font-size: .75rem; }
.state-jump input { min-width: 0; width: 100%; border: 1px solid var(--line); border-radius: .6rem; padding: .55rem .7rem; background: var(--bg); color: var(--text); }
.assistive-summary { margin: 0; color: var(--faint); font-size: .8rem; }

.action-stage { width: min(1180px, calc(100% - 1rem)); max-height: calc(100svh - 1rem); padding: 0; border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--bg-elevated); color: var(--text); box-shadow: 0 34px 100px rgba(0,0,0,.5); }
.action-stage::backdrop { background: color-mix(in srgb, #000 80%, transparent); backdrop-filter: blur(8px); }
.action-layout { position: relative; padding: clamp(1rem, 3vw, 2rem); }
.action-layout h2 { margin: 0; max-width: 24ch; font-size: clamp(2rem, 5vw, 4rem); line-height: 1.02; letter-spacing: -.045em; font-weight: 320; }
.action-help { max-width: 52rem; margin: .75rem 0 1.2rem; color: var(--muted); }
.dialog-close { position: absolute; inset-block-start: .75rem; inset-inline-end: .75rem; z-index: 4; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 50%; background: var(--bg); color: var(--text); font-size: 1.5rem; cursor: pointer; }
.action-canvas-wrap { aspect-ratio: 16 / 9; min-height: 21rem; overflow: hidden; border: 1px solid var(--line-strong); border-radius: 16px; background: radial-gradient(circle at 50% 50%, var(--accent-soft), transparent 32%), var(--bg); touch-action: none; }
.action-feedback { min-height: 1.5rem; margin: .75rem 0; color: var(--muted); font-size: .82rem; }
.action-buttons { display: flex; flex-wrap: wrap; gap: .6rem; align-items: center; }
.confirm-panel { margin-top: 1rem; border-inline-start: 3px solid var(--accent); padding: 1rem 1.1rem; background: var(--accent-soft); }
.confirm-panel h3 { margin: 0 0 .5rem; font-size: 1.15rem; }
.confirm-panel p { max-width: 58rem; margin: 0 0 1rem; color: var(--muted); }
.success-panel { min-height: 32rem; display: grid; align-content: center; justify-items: start; }
.success-panel > p:not(.eyebrow) { max-width: 55rem; color: var(--muted); }
.created-state { display: block; margin: .8rem 0 1.2rem; font-size: clamp(2.5rem, 8vw, 6rem); font-weight: 280; letter-spacing: -.05em; }
.lab-toolbar { margin: 1rem 0; display: grid; gap: 1rem; border: 1px solid color-mix(in srgb, var(--accent) 55%, var(--line)); border-radius: 14px; padding: 1rem; background: var(--accent-soft); }
.lab-toolbar strong { color: var(--accent); letter-spacing: .08em; }
.lab-toolbar p { margin: .25rem 0; color: var(--muted); font-size: .82rem; }
.lab-toolbar label { display: grid; gap: .3rem; color: var(--muted); font-size: .72rem; }
.lab-toolbar select { border: 1px solid var(--line); border-radius: .6rem; padding: .45rem .7rem; background: var(--bg); color: var(--text); }

.site-footer { width: min(calc(100% - 2rem), var(--content)); margin: 0 auto; padding: 1.6rem 0 calc(1.6rem + env(safe-area-inset-bottom)); border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 1rem 2rem; justify-content: space-between; color: var(--muted); font-size: .75rem; }
.site-footer > div { display: flex; flex-wrap: wrap; gap: .5rem 1rem; }
.site-footer strong { color: var(--text); }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 1rem; }


body[data-page="home"]::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(circle at 18% 18%, rgba(185, 135, 69, .17), transparent 26%),
    radial-gradient(circle at 82% 22%, rgba(242, 238, 231, .08), transparent 22%),
    radial-gradient(circle at 50% 65%, rgba(185, 135, 69, .12), transparent 28%);
}
.hero-v2 { width: min(calc(100% - 1rem), var(--content)); margin: 0 auto; padding: clamp(1.4rem, 4vw, 2rem) 0 clamp(3rem, 7vw, 5rem); display: grid; gap: 1.25rem; }
.hero-copy-v2 { display: grid; gap: 1rem; }
.hero-copy-v2 h1 { margin: 0; max-width: 11ch; font-size: clamp(2.45rem, 10vw, 4.9rem); line-height: .97; letter-spacing: -.055em; font-weight: 320; }
.hero-copy-v2 .hero-lead { margin: 0; max-width: 74ch; }
.hero-stat-strip { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .75rem; }
.stat-card { border: 1px solid var(--line); border-radius: 18px; padding: 1rem; background: color-mix(in srgb, var(--bg-elevated) 78%, transparent); box-shadow: var(--shadow); }
.stat-card.compact { padding: .9rem .95rem; }
.stat-card span, .stat-card small { color: var(--muted); }
.stat-card strong { display: block; margin-top: .35rem; font-size: clamp(1.45rem, 4vw, 2.1rem); letter-spacing: -.03em; }
.hero-stage-v2 { min-width: 0; }
.constellation-layout { display: grid; gap: 1rem; }
.constellation-board, .activity-card { margin: 0; border: 1px solid var(--line); border-radius: calc(var(--radius) + 4px); padding: 1rem; background: linear-gradient(180deg, color-mix(in srgb, var(--bg-elevated) 82%, transparent), color-mix(in srgb, var(--bg) 92%, transparent)); box-shadow: var(--shadow); }
.constellation-head { display: grid; gap: .55rem; margin-bottom: 1rem; }
.constellation-head h2 { margin: 0; font-size: clamp(1.35rem, 4vw, 2rem); line-height: 1.08; letter-spacing: -.03em; font-weight: 420; }
.constellation-head p { margin: 0; color: var(--muted); max-width: 70ch; }
.constellation-surface { display: grid; gap: 1rem; }
.constellation-canvas { min-height: 22rem; background: radial-gradient(circle at 52% 45%, var(--accent-soft), transparent 28%), linear-gradient(145deg, color-mix(in srgb, var(--bg-elevated) 94%, #000), var(--bg)); }
.constellation-sidebar { display: grid; gap: 1rem; }
.metric-list { display: grid; gap: .7rem; }
.metric-list div, .breakdown-row, .recent-item { display: grid; grid-template-columns: auto 1fr auto; gap: .7rem; align-items: center; }
.metric-list div strong, .breakdown-row strong { margin: 0; font-size: 1.05rem; }
.progress-topline { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; }
.progress-topline strong { margin: 0; font-size: 1.55rem; }
.progress-meter { margin-top: .7rem; height: .75rem; border-radius: 999px; background: color-mix(in srgb, var(--bg) 72%, transparent); overflow: hidden; }
.progress-meter span { display: block; height: 100%; width: 0; border-radius: inherit; background: linear-gradient(90deg, var(--accent), color-mix(in srgb, var(--text) 72%, var(--accent))); transition: width .25s ease; }
.breakdown-list { display: grid; gap: .8rem; }
.icon-badge { display: inline-flex; align-items: center; justify-content: center; width: 2rem; height: 2rem; border: 1px solid var(--line); border-radius: 50%; color: var(--accent); background: color-mix(in srgb, var(--accent-soft) 75%, transparent); }
.icon-badge svg { width: 1rem; height: 1rem; display: block; }
.activity-panel { display: grid; gap: 1rem; }
.activity-head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; margin-bottom: .75rem; }
.recent-list { list-style: none; padding: 0; margin: 0; display: grid; gap: .65rem; }
.recent-list li { border: 1px solid var(--line); border-radius: 14px; padding: .85rem .9rem; background: color-mix(in srgb, var(--bg) 82%, transparent); color: var(--muted); }
.recent-item strong { color: var(--text); font-size: .96rem; }
.recent-item span { color: var(--faint); font-size: .76rem; letter-spacing: .11em; }
.recent-item small { color: var(--muted); font-size: .78rem; }
.home-below { padding-top: 0; }
.home-below article { border-top: 1px solid var(--line); padding-top: 1.2rem; }

[dir="rtl"] .hero-copy-v15, [dir="rtl"] .page-intro, [dir="rtl"] .editorial-grid, [dir="rtl"] .prose-grid, [dir="rtl"] .timeline-story, [dir="rtl"] .hero-copy-v2, [dir="rtl"] .constellation-head { text-align: right; }

@media (min-width: 48rem) {
  .site-header { grid-template-columns: auto 1fr auto; grid-template-areas: "brand nav tools"; padding: .9rem 1.5rem; }
  .hero-stat-strip { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .constellation-surface { grid-template-columns: minmax(0, 1.4fr) minmax(18rem, .7fr); align-items: stretch; }
  .primary-nav { justify-content: center; }
  .artwork-shell-v15 figcaption { grid-template-columns: minmax(0, 1fr) auto; align-items: start; }
  .state-inline { justify-content: flex-end; }
  .editorial-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem; }
  .prose-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .prose-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .gesture-catalog { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .timeline-story article { grid-template-columns: 9rem minmax(0, 1fr); }
  .lab-toolbar { grid-template-columns: minmax(0, 1fr) minmax(14rem, .5fr); align-items: end; }
}

@media (min-width: 72rem) {
  .site-header { padding-inline: max(2rem, calc((100vw - var(--content)) / 2)); }
  .hero-v2 { grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr); align-items: start; gap: 1.35rem; }
  .constellation-layout { grid-template-columns: minmax(0, 1fr) minmax(20rem, .42fr); align-items: start; }
  .activity-panel { position: sticky; top: 7rem; }
  .constellation-canvas { min-height: min(76svh, 52rem); }
  .hero-v15 { grid-template-columns: 1fr; align-items: start; min-height: auto; }
  .hero-copy-v15 { max-width: 78rem; }
  .hero-copy-v15 h1 { font-size: clamp(3.8rem, 5.15vw, 5.5rem); max-width: 24ch; }
  .hero-lead { max-width: 76ch; }
  .artwork-card-v15 { min-height: min(72svh, 58rem); }
  .gesture-catalog { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .memory-explorer { grid-template-columns: minmax(0, 1.65fr) minmax(19rem, .65fr); align-items: start; }
  .memory-panel { position: sticky; top: 7rem; }
}

@media (max-width: 29rem) {
  .header-tools { gap: .25rem; }
  .hero-v2 { width: min(calc(100% - .6rem), var(--content)); }
  .constellation-board, .activity-card { padding: .8rem; }
  .metric-list div, .breakdown-row, .recent-item { grid-template-columns: auto 1fr; }
  .metric-list div strong, .breakdown-row strong, .recent-item small { grid-column: 2; }
  .hero-stat-strip { grid-template-columns: 1fr 1fr; }
  .select-control select { max-width: 6rem; padding-inline: .55rem 1.3rem; }
  .hero-copy-v15 h1, .page-intro h1 { font-size: clamp(2.35rem, 12vw, 3.8rem); }
  .artwork-card-v15, .memory-canvas, .action-canvas-wrap { min-height: 19rem; aspect-ratio: 4 / 5; }
  .gesture-catalog { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .001ms !important; animation-duration: .001ms !important; animation-iteration-count: 1 !important; }
}

/* AfterMachine 2.5.0: mockup-led living artwork, mobile first */
.home-v25 { background: var(--bg); overflow: clip; }
.home-hero-v25 { width: min(calc(100% - 1rem), 1680px); margin: 0 auto; padding: 1.2rem 0 2.5rem; }
.home-grid-v25 { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1rem; align-items: start; }
.home-copy-v25 { padding: 1rem .35rem .5rem; }
.home-copy-v25 h1 { margin: 0; max-width: 18ch; font-size: clamp(2.45rem, 11vw, 4.6rem); line-height: .98; letter-spacing: -.055em; font-weight: 300; text-wrap: balance; }
.home-copy-v25 .hero-lead { margin-top: 1rem; max-width: 63ch; font-size: 1rem; line-height: 1.62; }
.home-actions-v25 { display: flex; flex-wrap: wrap; gap: .65rem; margin-top: 1.25rem; }
.action-primary-v25 { box-shadow: 0 0 30px color-mix(in srgb, var(--accent) 24%, transparent); }
.home-note-v25 { margin: .7rem 0 0; color: var(--faint); font-size: .78rem; }
.gesture-palette-wrap-v25 { margin-top: 1.4rem; }
.gesture-palette-v25 { display: flex; gap: .55rem; overflow-x: auto; padding: .2rem 0 .45rem; scrollbar-width: none; scroll-snap-type: x proximity; }
.gesture-palette-v25::-webkit-scrollbar { display: none; }
.gesture-choice-v25 { flex: 0 0 auto; min-width: 5.8rem; min-height: 5.2rem; border: 1px solid var(--line); border-radius: 14px; padding: .65rem .6rem; background: color-mix(in srgb, var(--bg-elevated) 82%, transparent); color: var(--muted); display: grid; justify-items: center; align-content: center; gap: .4rem; cursor: pointer; scroll-snap-align: start; transition: border-color .18s ease, background .18s ease, color .18s ease, transform .18s ease; }
.gesture-choice-v25:hover, .gesture-choice-v25.is-active { border-color: var(--accent); color: var(--text); background: var(--accent-soft); transform: translateY(-1px); }
.gesture-icon-v25 { width: 2rem; height: 2rem; display: grid; place-items: center; color: var(--accent); }
.gesture-icon-v25 svg { width: 100%; height: 100%; display: block; }
.gesture-choice-v25 > span:last-child { font-size: .72rem; white-space: nowrap; }

.artwork-stage-v25 { min-width: 0; }
.artwork-canvas-v25 { position: relative; aspect-ratio: 4 / 5; min-height: 28rem; overflow: hidden; border: 1px solid var(--line-strong); border-radius: 22px; background: radial-gradient(circle at 50% 48%, rgba(185,135,69,.11), transparent 27%), #090908; box-shadow: 0 32px 90px rgba(0,0,0,.32); }
.artwork-quote-v25 { position: absolute; inset-inline: 1rem; inset-block-end: 3.8rem; max-width: 25rem; margin: 0; color: color-mix(in srgb, var(--text) 72%, transparent); font-size: .82rem; font-style: italic; text-align: end; pointer-events: none; }
.home-rail-v25 { display: grid; gap: .8rem; }
.rail-metrics-v25, .rail-density-v25, .rail-recent-v25 { border: 1px solid var(--line); border-radius: 18px; padding: 1rem; background: color-mix(in srgb, var(--bg-elevated) 84%, transparent); }
.rail-metrics-v25 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .85rem; }
.rail-metrics-v25 > div { border-inline-start: 1px solid var(--line); padding-inline-start: .75rem; }
.rail-metrics-v25 strong { display: block; font-size: clamp(1.35rem, 7vw, 2rem); line-height: 1; letter-spacing: -.04em; font-weight: 360; }
.rail-metrics-v25 span { display: block; margin-top: .35rem; color: var(--muted); font-size: .65rem; letter-spacing: .1em; text-transform: uppercase; }
.rail-density-v25 { display: grid; gap: .55rem; }
.density-row-v25 { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 1rem; align-items: center; border-top: 1px solid var(--line); padding-top: .55rem; }
.density-row-v25 span { display: inline-flex; align-items: center; gap: .55rem; color: var(--muted); font-size: .78rem; }
.density-row-v25 svg { width: 1.25rem; height: 1.25rem; color: var(--accent); }
.density-row-v25 strong { font-weight: 450; }
.rail-heading-v25 { display: flex; align-items: baseline; justify-content: space-between; gap: .75rem; }
.rail-heading-v25 a { color: var(--muted); font-size: .72rem; }
.recent-list-v25 { list-style: none; margin: 0; padding: 0; display: grid; gap: .55rem; }
.recent-list-v25 li { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: .15rem .75rem; border: 1px solid var(--line); border-radius: 12px; padding: .75rem; color: var(--muted); font-size: .76rem; }
.recent-list-v25 li strong { color: var(--text); font-size: .85rem; }
.recent-list-v25 li span { color: var(--accent); font-size: .65rem; letter-spacing: .1em; }
.recent-list-v25 li small { grid-column: 1 / -1; color: var(--faint); }

.home-timeline-v25 { margin-top: 1rem; display: grid; gap: .9rem; border: 1px solid var(--line); border-radius: 18px; padding: 1rem; background: color-mix(in srgb, var(--bg-elevated) 84%, transparent); }
.timeline-copy-v25 strong { display: block; color: var(--muted); font-size: .8rem; font-weight: 400; max-width: 50ch; }
.timeline-track-wrap-v25, .memory-timeline-v25 { min-width: 0; }
.timeline-track-v25 { position: relative; height: 2.1rem; border-block: 1px solid transparent; background: linear-gradient(var(--line-strong), var(--line-strong)) center / 100% 1px no-repeat; }
.timeline-dot-v25, .timeline-base-dot-v25, .timeline-live-dot-v25 { position: absolute; inset-inline-start: var(--timeline-position); inset-block-start: 50%; transform: translate(-50%, -50%); border-radius: 50%; }
[dir="rtl"] .timeline-dot-v25, [dir="rtl"] .timeline-base-dot-v25, [dir="rtl"] .timeline-live-dot-v25 { transform: translate(50%, -50%); }
.timeline-dot-v25 { width: 12px; min-height: 12px; height: 12px; padding: 0; border: 2px solid var(--bg); background: var(--accent); box-shadow: 0 0 0 1px var(--accent), 0 0 14px color-mix(in srgb, var(--accent) 50%, transparent); cursor: pointer; }
.timeline-base-dot-v25 { width: 8px; height: 8px; background: var(--muted); }
.timeline-live-dot-v25 { width: 18px; height: 18px; border: 3px solid var(--accent); background: var(--bg); box-shadow: 0 0 22px color-mix(in srgb, var(--accent) 55%, transparent); }
.timeline-labels-v25 { display: flex; justify-content: space-between; color: var(--faint); font-size: .62rem; letter-spacing: .09em; }
.home-timeline-v25 > a { justify-self: start; color: var(--accent); font-size: .76rem; }

.how-v25 { width: min(calc(100% - 1rem), 1680px); margin: 0 auto; padding: 1rem 0 5rem; }
.how-v25 > header { border-top: 1px solid var(--line); padding-top: 1.2rem; }
.how-v25 h2 { margin: 0; font-size: clamp(1.7rem, 7vw, 2.7rem); font-weight: 330; letter-spacing: -.035em; }
.how-grid-v25 { display: grid; gap: .8rem; margin-top: 1rem; }
.how-grid-v25 article { min-width: 0; border: 1px solid var(--line); border-radius: 16px; padding: 1rem; background: color-mix(in srgb, var(--bg-elevated) 68%, transparent); }
.how-grid-v25 article > span { color: var(--accent); font-size: .7rem; }
.how-grid-v25 article > svg { display: block; width: 1.8rem; height: 1.8rem; margin: .65rem 0; color: var(--muted); }
.how-grid-v25 h3 { margin: 0; font-size: 1.05rem; }
.how-grid-v25 p { margin: .5rem 0 0; color: var(--muted); font-size: .82rem; }

/* Full drawing studio */
.studio-v25 { width: 100vw; max-width: none; height: 100svh; max-height: none; border-radius: 0; border: 0; margin: 0; }
.studio-v25 .action-layout { min-height: 100%; padding: max(1rem, env(safe-area-inset-top)) max(1rem, env(safe-area-inset-right)) max(1rem, env(safe-area-inset-bottom)) max(1rem, env(safe-area-inset-left)); display: grid; align-content: start; }
.studio-v25 .action-layout h2 { max-width: 18ch; }
.studio-palette-v25 { margin: .8rem 0; }
.studio-gesture-palette-v25 { max-width: 48rem; }
.studio-v25 .action-canvas-wrap { min-height: 48svh; aspect-ratio: auto; flex: 1; border-radius: 18px; }
.studio-v25 [data-intervention-panel] { display: grid; grid-template-rows: auto auto auto minmax(18rem, 1fr) auto auto; min-height: calc(100svh - 2rem); }

/* Memory 2.5 */
.memory-intro-v25 { display: grid; gap: 1.2rem; align-items: end; }
.memory-intro-v25 .button { justify-self: start; }
.memory-explorer-v25 { display: grid; gap: 1rem; }
.memory-art-v25 { min-width: 0; }
.memory-canvas-v25 { aspect-ratio: 4 / 5; min-height: 28rem; }
.memory-timeline-v25 { margin-top: .75rem; border: 1px solid var(--line); border-radius: 14px; padding: .8rem; background: var(--bg-elevated); }
.memory-panel-v25 { display: grid; gap: 1rem; border: 1px solid var(--line); border-radius: 18px; padding: 1rem; background: var(--bg-elevated); align-content: start; }
.memory-nav-v25 { display: flex; flex-wrap: wrap; gap: .5rem; }
.memory-palette-v25 { border-top: 1px solid var(--line); padding-top: 1rem; }

@media (min-width: 48rem) {
  .home-hero-v25, .how-v25 { width: min(calc(100% - 2rem), 1680px); }
  .home-grid-v25 { grid-template-columns: minmax(0, .72fr) minmax(0, 1.28fr); gap: 1.2rem; }
  .home-copy-v25 { align-self: center; }
  .home-copy-v25 h1 { max-width: 13ch; font-size: clamp(3.4rem, 7vw, 5.4rem); }
  .artwork-canvas-v25 { aspect-ratio: 16 / 11; min-height: 34rem; }
  .home-rail-v25 { grid-column: 1 / -1; grid-template-columns: repeat(3, minmax(0,1fr)); }
  .home-timeline-v25 { grid-template-columns: minmax(13rem,.35fr) minmax(0,1fr) auto; align-items: center; }
  .how-grid-v25 { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .memory-intro-v25 { grid-template-columns: minmax(0,1fr) auto; }
  .memory-explorer-v25 { grid-template-columns: minmax(0,1.4fr) minmax(19rem,.6fr); align-items: start; }
  .memory-canvas-v25 { aspect-ratio: 16 / 11; min-height: 34rem; }
}

@media (min-width: 78rem) {
  .home-grid-v25 { grid-template-columns: minmax(25rem,.9fr) minmax(0,1.35fr) minmax(18rem,.5fr); gap: 1.2rem; min-height: calc(100svh - 7rem); }
  .home-copy-v25 { position: sticky; top: 6.5rem; padding-block: 2.4rem; }
  .home-copy-v25 h1 { max-width: 18ch; font-size: clamp(3.45rem, 4.15vw, 5.1rem); }
  .artwork-stage-v25 { align-self: stretch; padding-block: 1.5rem; }
  .artwork-canvas-v25 { height: calc(100svh - 10rem); min-height: 46rem; aspect-ratio: auto; }
  .home-rail-v25 { grid-column: auto; grid-template-columns: 1fr; align-content: start; position: sticky; top: 6.5rem; padding-top: 2.4rem; }
  .rail-metrics-v25 { grid-template-columns: 1fr 1fr; }
  .how-grid-v25 { grid-template-columns: repeat(4, minmax(0,1fr)); }
  .studio-v25 { width: min(96vw, 1680px); height: min(94svh, 1050px); max-height: 94svh; border: 1px solid var(--line-strong); border-radius: 24px; margin: auto; }
  .studio-v25 [data-intervention-panel] { min-height: auto; }
  .studio-v25 .action-canvas-wrap { min-height: 56svh; }
}