/* sdeck-plus website: shared styles for index.html and docs.html.
   No build step. Colors are tokens on :root; dark mode is redefined for
   prefers-color-scheme (unless the light theme is forced) and data-theme. */

:root {
  color-scheme: light;
  --bg: #f6f5fa;
  --bg-tint: #eeebf7;
  --surface: #ffffff;
  --surface-2: #f2f0f8;
  --surface-glass: rgba(255, 255, 255, 0.72);
  --border: #e0dcea;
  --border-strong: #c9c3d9;
  --text: #17141f;
  --muted: #545064;
  --accent: #6746bb;
  --accent-strong: #5634a8;
  --accent-soft: #ece5fb;
  --on-accent: #ffffff;
  --cyan: #0e7490;
  --focus: #0e7490;
  --glow-1: rgba(103, 70, 187, 0.18);
  --glow-2: rgba(14, 116, 144, 0.12);
  --shadow-sm: 0 1px 2px rgba(23, 20, 31, 0.06), 0 2px 8px rgba(23, 20, 31, 0.05);
  --shadow-md: 0 8px 24px rgba(23, 20, 31, 0.08), 0 2px 6px rgba(23, 20, 31, 0.05);
  --shadow-lg: 0 30px 70px rgba(43, 30, 90, 0.18), 0 8px 20px rgba(23, 20, 31, 0.08);
  --code-bg: #1a1724;
  --code-text: #ece9f5;
  --code-muted: #a9a3bd;

  /* Action families, as in the app's two-tone icons. */
  --fam-media: #6d4fd0;
  --fam-audio: #0e7490;
  --fam-obs: #c2304a;
  --fam-system: #a15c07;
  --fam-web: #2563c9;
  --fam-load: #15803d;
  --fam-org: #3f3a4f;

  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 22px;
  --gutter: clamp(16px, 4vw, 40px);
  --max: 1200px;
  --header-h: 64px;
  --font-display: "Space Grotesk", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "JetBrains Mono", "Cascadia Code", "Fira Code", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0b0a10;
    --bg-tint: #12101b;
    --surface: #14121c;
    --surface-2: #1c1a27;
    --surface-glass: rgba(20, 18, 28, 0.7);
    --border: #2a2738;
    --border-strong: #3b3750;
    --text: #f2f0f8;
    --muted: #aca6bf;
    --accent: #b6a1ef;
    --accent-strong: #cbbbf5;
    --accent-soft: #241e3a;
    --on-accent: #16112a;
    --cyan: #85dce8;
    --focus: #85dce8;
    --glow-1: rgba(139, 92, 246, 0.24);
    --glow-2: rgba(34, 211, 238, 0.12);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 40px 90px rgba(0, 0, 0, 0.55), 0 10px 24px rgba(0, 0, 0, 0.4);
    --code-bg: #0f0d16;
    --code-text: #ece9f5;
    --code-muted: #a9a3bd;
    --fam-media: #b6a1ef;
    --fam-audio: #67e8f9;
    --fam-obs: #fb7185;
    --fam-system: #f9cc7a;
    --fam-web: #93c5fd;
    --fam-load: #7de2b3;
    --fam-org: #e7e4f0;
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b0a10;
  --bg-tint: #12101b;
  --surface: #14121c;
  --surface-2: #1c1a27;
  --surface-glass: rgba(20, 18, 28, 0.7);
  --border: #2a2738;
  --border-strong: #3b3750;
  --text: #f2f0f8;
  --muted: #aca6bf;
  --accent: #b6a1ef;
  --accent-strong: #cbbbf5;
  --accent-soft: #241e3a;
  --on-accent: #16112a;
  --cyan: #85dce8;
  --focus: #85dce8;
  --glow-1: rgba(139, 92, 246, 0.24);
  --glow-2: rgba(34, 211, 238, 0.12);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 40px 90px rgba(0, 0, 0, 0.55), 0 10px 24px rgba(0, 0, 0, 0.4);
  --code-bg: #0f0d16;
  --code-text: #ece9f5;
  --code-muted: #a9a3bd;
  --fam-media: #b6a1ef;
  --fam-audio: #67e8f9;
  --fam-obs: #fb7185;
  --fam-system: #f9cc7a;
  --fam-web: #93c5fd;
  --fam-load: #7de2b3;
  --fam-org: #e7e4f0;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: var(--accent); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--accent-strong); }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0;
  text-wrap: balance;
}
p { margin: 0; }
p + p { margin-top: 0.75rem; }
strong { font-weight: 650; color: var(--text); }
code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.08em 0.38em;
  overflow-wrap: anywhere;
}
:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
  border-radius: 6px;
}
::selection { background: var(--accent); color: var(--on-accent); }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 16px; top: -100px; z-index: 100;
  background: var(--accent); color: var(--on-accent);
  padding: 0.6rem 1rem; border-radius: var(--radius-sm); font-weight: 600;
  text-decoration: none;
}
.skip-link:focus { top: 12px; color: var(--on-accent); }

.wrap {
  width: min(var(--max), 100% - 2 * var(--gutter));
  margin-inline: auto;
}
.wrap > *, [class*="grid"] > * { min-width: 0; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--surface-glass);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex; align-items: center; gap: 1rem;
  min-height: var(--header-h);
  flex-wrap: wrap;
}
.brand {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--font-display); font-weight: 700; font-size: 1.1rem;
  color: var(--text); text-decoration: none; letter-spacing: -0.01em;
  margin-right: auto;
}
.brand:hover { color: var(--text); }
.brand img { width: 30px; height: 30px; }
.site-nav ul {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-wrap: wrap; align-items: center; gap: 0.25rem 0.35rem;
}
.site-nav a {
  display: inline-block;
  padding: 0.45rem 0.8rem; border-radius: 999px;
  color: var(--muted); text-decoration: none; font-weight: 550; font-size: 0.95rem;
  transition: color 0.15s, background-color 0.15s;
}
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--text); background: var(--surface-2); }
.header-tools { display: flex; align-items: center; gap: 0.4rem; }
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; padding: 0;
  border-radius: 12px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text); cursor: pointer;
  transition: border-color 0.15s, transform 0.15s, background-color 0.15s;
}
.icon-btn:hover { border-color: var(--border-strong); background: var(--surface-2); }
.icon-btn svg { width: 20px; height: 20px; }
.theme-toggle, .menu-toggle { display: none; }
.js .theme-toggle { display: inline-flex; }
.theme-toggle .i-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .i-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .i-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .i-sun { display: block; }
  :root:not([data-theme="light"]) .theme-toggle .i-moon { display: none; }
}
.menu-toggle .i-close { display: none; }
.menu-toggle[aria-expanded="true"] .i-close { display: block; }
.menu-toggle[aria-expanded="true"] .i-menu { display: none; }

@media (max-width: 820px) {
  .site-nav { order: 3; width: 100%; padding-bottom: 0.6rem; }
  .js .menu-toggle { display: inline-flex; }
  .js .site-nav { display: none; }
  .js .site-nav.is-open { display: block; }
  .js .site-nav.is-open ul { flex-direction: column; align-items: stretch; gap: 0.15rem; }
  .js .site-nav.is-open a { display: block; padding: 0.7rem 0.9rem; border-radius: 12px; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.55rem;
  padding: 0.8rem 1.25rem; border-radius: 14px;
  font-weight: 650; font-size: 1rem; line-height: 1.2;
  text-decoration: none; color: var(--text);
  background: var(--surface); border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-sm);
  transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s, border-color 0.18s;
}
.btn svg { width: 18px; height: 18px; flex: none; }
.btn:hover { color: var(--text); border-color: var(--accent); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-primary {
  color: var(--on-accent); border-color: transparent;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
  box-shadow: 0 10px 26px var(--glow-1), var(--shadow-sm);
}
.btn-primary:hover { color: var(--on-accent); border-color: transparent; box-shadow: 0 14px 34px var(--glow-1), var(--shadow-md); }
.btn-primary .arrow { transition: transform 0.18s ease; }
.btn-primary:hover .arrow { transform: translateX(3px); }
.text-link {
  display: inline-flex; align-items: center; gap: 0.35rem;
  font-weight: 650; text-decoration: none;
}
.text-link svg { width: 16px; height: 16px; transition: transform 0.18s ease; }
.text-link:hover svg { transform: translateX(3px); }

/* ---------- Typography helpers ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 0.55rem;
  font-family: var(--font-mono); font-size: 0.78rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent);
}
.eyebrow .pulse {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--fam-load); box-shadow: 0 0 0 0 var(--fam-load);
  animation: pulse 2.4s ease-out infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--fam-load) 55%, transparent); }
  100% { box-shadow: 0 0 0 10px transparent; }
}
.section { padding-block: clamp(4rem, 9vw, 7.5rem); position: relative; }
.section-tint { background: var(--bg-tint); border-block: 1px solid var(--border); }
.section-head { max-width: 46rem; margin-bottom: clamp(2rem, 5vw, 3.5rem); }
.section-head h2 { font-size: clamp(2rem, 4.4vw, 3.1rem); margin-top: 0.7rem; }
.section-head .lead { margin-top: 1rem; }
.section-head.offset { margin-left: clamp(0px, 8vw, 7rem); }
.lead { color: var(--muted); font-size: clamp(1.05rem, 1.6vw, 1.2rem); line-height: 1.6; }
.muted { color: var(--muted); }
.note { color: var(--muted); font-size: 0.92rem; }
.grad {
  background: linear-gradient(100deg, var(--accent) 0%, var(--fam-audio) 55%, var(--accent) 100%);
  background-size: 200% 100%;
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
  animation: sheen 9s ease-in-out infinite alternate;
}
@keyframes sheen { from { background-position: 0% 50%; } to { background-position: 100% 50%; } }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  padding-block: clamp(3rem, 7vw, 6rem) clamp(4rem, 8vw, 7rem);
}
.hero::before {
  content: ""; position: absolute; inset: -20% -10% auto auto;
  width: 70vw; height: 70vw; max-width: 900px; max-height: 900px;
  background: radial-gradient(closest-side, var(--glow-1), transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(60% 60% at 72% 40%, #000 0%, transparent 75%);
  mask-image: radial-gradient(60% 60% at 72% 40%, #000 0%, transparent 75%);
  opacity: 0.55; pointer-events: none;
}
.hero-grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr);
  gap: clamp(2rem, 5vw, 4.5rem); align-items: center;
}
.hero h1 {
  font-size: clamp(2.6rem, 6.2vw, 5.1rem);
  line-height: 1.02; letter-spacing: -0.035em;
  margin: 1.1rem 0 1.3rem;
}
.hero .lead { max-width: 34rem; }
.cta-row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; }
.hero .note { margin-top: 1.4rem; max-width: 32rem; }
.stats {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.5rem; margin: 2.4rem 0 0; max-width: 32rem;
  border-top: 1px solid var(--border); padding-top: 1.3rem;
}
.stats div { min-width: 0; }
.stats dt { order: 2; color: var(--muted); font-size: 0.82rem; line-height: 1.3; }
.stats dd {
  margin: 0; font-family: var(--font-display); font-weight: 700;
  font-size: clamp(1.5rem, 3vw, 2rem); line-height: 1.1; color: var(--text);
}
.stats div { display: flex; flex-direction: column-reverse; }

/* ---------- Device mockup ---------- */
.hero-stage { position: relative; }
.device {
  --dev-body: #16171c;
  --dev-edge: #2c2e36;
  --dev-key: #0b0b0e;
  --dev-ink: #f1f4f7;
  --dev-muted: #9aa3ae;
  --dev-violet: #b6a1ef;
  --dev-cyan: #85dce8;
  --dev-red: #fb7185;
  --dev-amber: #f9cc7a;
  --dev-blue: #93c5fd;
  --dev-green: #7de2b3;
  container-type: inline-size;
  position: relative;
  width: 100%; max-width: 600px; margin-left: auto;
  padding: 5.5% 6% 6%;
  border-radius: 2cqi;
  background:
    radial-gradient(120% 80% at 20% 0%, #2a2c35 0%, transparent 60%),
    linear-gradient(160deg, #22242b 0%, var(--dev-body) 45%, #0e0f13 100%);
  border: 1px solid #34363f;
  box-shadow: var(--shadow-lg), inset 0 1px 0 rgba(255, 255, 255, 0.08), inset 0 -2px 0 rgba(0, 0, 0, 0.5);
  color: var(--dev-ink);
  transform: perspective(1400px) rotateY(-7deg) rotateX(4deg);
  transform-origin: 60% 50%;
  transition: transform 0.6s cubic-bezier(.2, .7, .2, 1);
}
.device:hover, .device:focus-within { transform: perspective(1400px) rotateY(-2deg) rotateX(1deg); }
.device-brand {
  position: absolute; top: 2.1%; left: 50%; transform: translateX(-50%);
  font-size: 1.7cqi; letter-spacing: 0.3em; text-transform: uppercase; color: #5b5f6a;
  font-family: var(--font-mono);
}
.keys {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 3.4cqi 3.6cqi; padding: 0 1.6cqi;
}
.ctl {
  -webkit-appearance: none; appearance: none;
  font: inherit; color: inherit; cursor: pointer;
  border: 0; padding: 0; margin: 0; background: none;
}
.key {
  position: relative; aspect-ratio: 1;
  border-radius: 2.6cqi;
  background: var(--dev-key);
  box-shadow: 0 0 0 1px #2a2c33, 0 0.7cqi 0 #050506, inset 0 0 0 1px rgba(255, 255, 255, 0.04);
  overflow: hidden;
  display: grid; place-items: center;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.key-face {
  position: absolute; inset: 7%;
  border-radius: 1.8cqi;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.6cqi;
  background: radial-gradient(120% 120% at 30% 20%, color-mix(in srgb, var(--tone, #444) 34%, #111) 0%, #0d0d10 80%);
  text-align: center; line-height: 1.05;
}
.key-face svg { width: 42%; height: 42%; color: var(--tone, #fff); }
.key-face .duo { fill: currentColor; fill-opacity: 0.28; }
.key-label { font-size: 1.85cqi; font-weight: 650; color: var(--dev-ink); letter-spacing: 0.01em; }
.key-big { font-family: var(--font-display); font-size: 4.6cqi; font-weight: 700; letter-spacing: -0.02em; }
.key-small { font-size: 1.55cqi; color: var(--dev-muted); }
.meter {
  width: 70%; height: 1.1cqi; border-radius: 1cqi; background: rgba(255, 255, 255, 0.12); overflow: hidden;
}
.meter > span {
  display: block; height: 100%; width: var(--v, 40%); border-radius: inherit;
  background: var(--tone, var(--dev-green));
  transition: width 0.8s ease, background-color 0.8s ease;
}
.ctl:hover .key, .ctl.key:hover { transform: translateY(-0.4cqi); }
.key:hover, .key:focus-visible, .key.is-active { box-shadow: 0 0 0 0.5cqi var(--dev-violet), 0 0.7cqi 0 #050506; }
.key:active, .key.is-pressed { transform: translateY(0.4cqi); box-shadow: 0 0 0 0.5cqi var(--dev-green), 0 0.2cqi 0 #050506; }
.ctl:focus-visible { outline: 2px solid var(--dev-cyan); outline-offset: 0.6cqi; }

.strip-wrap { position: relative; margin: 4.6cqi 0 0; }
.strip {
  position: relative;
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  aspect-ratio: 8 / 1.05;
  border-radius: 2cqi;
  background: linear-gradient(180deg, #0a0b10, #050508);
  box-shadow: 0 0 0 1px #2a2c33, inset 0 0 3cqi rgba(133, 220, 232, 0.05);
  overflow: hidden;
  touch-action: pan-y;
}
.zone {
  position: relative;
  display: flex; align-items: center; gap: 1.4cqi;
  padding: 0 2cqi;
  text-align: left; min-width: 0;
  border-right: 1px solid rgba(255, 255, 255, 0.05);
  transition: background-color 0.2s;
}
.zone:last-child { border-right: 0; }
.zone:hover, .zone.is-active { background: rgba(182, 161, 239, 0.12); }
.zone:focus-visible { outline-offset: -2px; }
.zone.is-pressed { background: rgba(133, 220, 232, 0.22); }
.zone-icon { flex: none; width: 4.2cqi; height: 4.2cqi; color: var(--tone, #fff); }
.zone-icon .duo { fill: currentColor; fill-opacity: 0.28; }
.zone-body { min-width: 0; flex: 1; display: flex; flex-direction: column; gap: 0.5cqi; }
.zone-value { font-family: var(--font-display); font-size: 2.6cqi; font-weight: 700; line-height: 1; white-space: nowrap; }
.zone-cap { font-size: 1.6cqi; color: var(--dev-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; line-height: 1.1; }
.zone .meter { width: 100%; height: 0.8cqi; }
.marquee { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; font-size: 2cqi; font-weight: 650; line-height: 1.15; }
.marquee.is-scrolling { text-overflow: clip; }
.marquee.is-scrolling .marquee-track { display: inline-block; animation: marquee 11s linear 1.2s infinite; }
.marquee.is-scrolling .marquee-track > span { display: inline-block; padding-right: 3cqi; }
.zone.is-paused .marquee, .zone.is-paused .zone-icon { opacity: 0.5; }
.key.is-recording .key-face { background: radial-gradient(120% 120% at 30% 20%, #7a1d2c 0%, #2a0c12 80%); }
.key.is-recording .key-face svg { animation: rec-blink 1.2s ease-in-out infinite; }
@keyframes rec-blink { 50% { opacity: 0.45; } }
.keys, .strip { filter: brightness(var(--dev-bright, 1)); transition: filter 0.3s ease; }
.strip.is-paging-next .zone { animation: page-next 0.35s ease both; }
.strip.is-paging-prev .zone { animation: page-prev 0.35s ease both; }
@keyframes page-next { from { opacity: 0; transform: translateX(18%); } to { opacity: 1; transform: none; } }
@keyframes page-prev { from { opacity: 0; transform: translateX(-18%); } to { opacity: 1; transform: none; } }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.strip-edge {
  position: absolute; top: 50%; transform: translateY(-50%);
  z-index: 2; width: 3.6cqi; height: 70%;
  display: grid; place-items: center;
  color: var(--dev-ink); opacity: 0.7;
  border-radius: 1cqi;
}
.strip-edge:hover { opacity: 1; background: rgba(255, 255, 255, 0.08); }
.strip-edge svg { width: 2.8cqi; height: 2.8cqi; }
.strip-edge.prev { left: 0.4cqi; }
.strip-edge.next { right: 0.4cqi; }
.strip-edge[hidden] { display: none; }
.strip-page {
  position: absolute; right: 1cqi; bottom: -3.4cqi;
  font-family: var(--font-mono); font-size: 1.5cqi; color: var(--dev-muted);
}

.dials {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 5.2cqi; justify-items: center;
}
.dial { display: grid; justify-items: center; gap: 1.4cqi; }
.knob {
  position: relative;
  width: 11.5cqi; aspect-ratio: 1; border-radius: 50%;
  background:
    repeating-conic-gradient(from 0deg, rgba(255, 255, 255, 0.07) 0 3deg, transparent 3deg 9deg),
    radial-gradient(circle at 35% 30%, #4a4d57 0%, #24262d 45%, #121317 100%);
  box-shadow: 0 1.2cqi 2.2cqi rgba(0, 0, 0, 0.6), inset 0 0.3cqi 0.4cqi rgba(255, 255, 255, 0.18), 0 0 0 0.4cqi #0b0b0e;
  transform: rotate(var(--rot, 0deg));
  transition: transform 0.35s cubic-bezier(.2, .8, .2, 1.2), box-shadow 0.2s;
}
.knob::after {
  content: ""; position: absolute; left: 50%; top: 9%;
  width: 0.9cqi; height: 2.6cqi; margin-left: -0.45cqi; border-radius: 1cqi;
  background: var(--dev-ink);
}
.dial:hover .knob, .dial:focus-visible .knob, .dial.is-active .knob {
  box-shadow: 0 1.2cqi 2.2cqi rgba(0, 0, 0, 0.6), inset 0 0.3cqi 0.4cqi rgba(255, 255, 255, 0.18), 0 0 0 0.5cqi var(--dev-violet);
}
.dial.is-turning .knob { box-shadow: 0 1.2cqi 2.2cqi rgba(0, 0, 0, 0.6), 0 0 0 0.5cqi var(--dev-amber); }
.dial:focus-visible { outline: none; }
.dial:focus-visible .knob { outline: 2px solid var(--dev-cyan); outline-offset: 0.8cqi; }
.dial-label { font-size: 1.7cqi; color: var(--dev-muted); display: inline-flex; align-items: center; gap: 0.6cqi; }
.dial-label svg { width: 2.2cqi; height: 2.2cqi; color: var(--tone, #fff); }

.caption-card {
  position: relative;
  margin: -1.6rem 0 0 clamp(-3rem, -3vw, 0rem);
  width: min(26rem, 78%);
  padding: 1.15rem 1.25rem 1.2rem;
  border-radius: var(--radius);
  background: var(--surface-glass);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  backdrop-filter: blur(16px) saturate(150%);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  z-index: 3;
}
.caption-kind {
  display: inline-flex; align-items: center; gap: 0.45rem;
  font-family: var(--font-mono); font-size: 0.72rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.08em; color: var(--tone-text, var(--accent));
}
.caption-kind::before { content: ""; width: 8px; height: 8px; border-radius: 3px; background: currentColor; }
.caption-title { font-family: var(--font-display); font-size: 1.25rem; font-weight: 700; margin-top: 0.3rem; letter-spacing: -0.01em; }
.caption-desc { color: var(--muted); font-size: 0.93rem; margin-top: 0.35rem; line-height: 1.5; }
.caption-list { list-style: none; margin: 0.7rem 0 0; padding: 0; display: grid; gap: 0.3rem; font-size: 0.88rem; }
.caption-list li { position: relative; padding-left: 1rem; }
.caption-list li::before { content: ""; position: absolute; left: 0; top: 0.6em; width: 6px; height: 6px; border-radius: 50%; background: var(--tone-text, var(--accent)); }
.caption-list:empty { display: none; }
.caption-hint { margin-top: 0.7rem; font-size: 0.8rem; color: var(--muted); }
.caption-hint kbd {
  font-family: var(--font-mono); font-size: 0.75rem; padding: 0.05rem 0.35rem;
  border: 1px solid var(--border-strong); border-bottom-width: 2px; border-radius: 5px; background: var(--surface);
}

.device [data-fam="media"] { --tone: var(--dev-violet); }
.device [data-fam="audio"] { --tone: var(--dev-cyan); }
.device [data-fam="obs"] { --tone: var(--dev-red); }
.device [data-fam="system"] { --tone: var(--dev-amber); }
.device [data-fam="web"] { --tone: var(--dev-blue); }
.device [data-fam="load"] { --tone: var(--dev-green); }
.device [data-fam="org"] { --tone: var(--dev-ink); }

/* ---------- Ticker ---------- */
.ticker {
  border-block: 1px solid var(--border);
  background: var(--surface);
  overflow: hidden;
  padding-block: 1rem;
}
.ticker-track {
  display: flex; gap: 2.5rem; width: max-content;
  animation: ticker 40s linear infinite;
}
.ticker:hover .ticker-track { animation-play-state: paused; }
.ticker ul { list-style: none; display: flex; gap: 2.5rem; margin: 0; padding: 0; }
.ticker li {
  display: inline-flex; align-items: center; gap: 0.6rem; white-space: nowrap;
  font-family: var(--font-display); font-weight: 600; color: var(--muted); font-size: 1.02rem;
}
.ticker li::before { content: ""; width: 7px; height: 7px; border-radius: 2px; background: var(--c, var(--accent)); transform: rotate(45deg); }
@keyframes ticker { from { transform: translateX(0); } to { transform: translateX(calc(-50% - 1.25rem)); } }

/* ---------- Bento ---------- */
.bento {
  display: grid; grid-template-columns: repeat(6, minmax(0, 1fr));
  grid-auto-rows: minmax(11rem, auto);
  gap: 1rem;
}
.tile {
  --mx: 50%; --my: 0%;
  position: relative; overflow: hidden;
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column; gap: 0.55rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s;
}
.tile::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(420px circle at var(--mx) var(--my), var(--glow-1), transparent 60%);
  opacity: 0; transition: opacity 0.3s;
}
.tile:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.tile:hover::before { opacity: 1; }
.tile > * { position: relative; }
.tile h3 { font-size: 1.25rem; }
.tile p { color: var(--muted); font-size: 0.96rem; }
.tile-icon {
  width: 44px; height: 44px; border-radius: 13px;
  display: grid; place-items: center;
  color: var(--c, var(--accent));
  background: color-mix(in srgb, var(--c, var(--accent)) 14%, transparent);
  margin-bottom: 0.4rem;
}
.tile-icon svg { width: 24px; height: 24px; }
.tile-icon .duo { fill: currentColor; fill-opacity: 0.25; }
.tile-hero { grid-column: span 4; grid-row: span 2; justify-content: space-between;
  background:
    radial-gradient(80% 90% at 100% 0%, var(--glow-1), transparent 60%),
    radial-gradient(60% 70% at 0% 100%, var(--glow-2), transparent 60%),
    var(--surface);
}
.tile-hero h3 { font-size: clamp(1.6rem, 3vw, 2.3rem); max-width: 18ch; }
.tile-hero p { font-size: 1.05rem; max-width: 38rem; }
.tile-2 { grid-column: span 2; }
.tile-3 { grid-column: span 3; }
.chips { list-style: none; margin: 0.8rem 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.45rem; }
.chips li {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.32rem 0.72rem; border-radius: 999px;
  font-size: 0.84rem; font-weight: 600;
  background: var(--surface-2); border: 1px solid var(--border); color: var(--text);
}
.chips li svg { width: 15px; height: 15px; color: var(--c, var(--accent)); }
.chips li .duo { fill: currentColor; fill-opacity: 0.25; }
.mini-bars { display: grid; gap: 0.5rem; margin-top: auto; padding-top: 0.6rem; }
.mini-bar { display: grid; grid-template-columns: 5.2rem 1fr 2.6rem; gap: 0.6rem; align-items: center; font-size: 0.82rem; color: var(--muted); }
.mini-bar .track { height: 7px; border-radius: 9px; background: var(--surface-2); overflow: hidden; border: 1px solid var(--border); }
.mini-bar .fill { display: block; height: 100%; width: var(--v); background: var(--c); border-radius: inherit; }
.mini-bar b { font-family: var(--font-mono); font-weight: 600; color: var(--text); text-align: right; }
.theme-swatches { display: flex; gap: 0.6rem; margin-top: auto; padding-top: 0.6rem; }
.theme-swatches span {
  flex: 1; height: 54px; border-radius: 12px; border: 1px solid var(--border);
  position: relative; overflow: hidden;
}
.theme-swatches .sw-dark { background: #15191f; }
.theme-swatches .sw-light { background: #f3f5f7; }
.theme-swatches span::after {
  content: ""; position: absolute; left: 12px; bottom: 12px; width: 44%; height: 9px; border-radius: 5px;
  background: var(--sw-acc);
}
.theme-swatches .sw-dark { --sw-acc: #b6a1ef; }
.theme-swatches .sw-light { --sw-acc: #6746bb; }
.theme-swatches span::before {
  content: ""; position: absolute; right: 12px; top: 12px; width: 16px; height: 16px; border-radius: 50%;
  border: 2px solid #85dce8;
}

/* ---------- Feature rows ---------- */
.features-list { display: grid; gap: clamp(4rem, 9vw, 7.5rem); }
.feature {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(1.8rem, 5vw, 4.5rem); align-items: center;
}
.feature.flip { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.feature.flip .feature-text { order: 2; }
.feature-num {
  font-family: var(--font-mono); font-size: 0.8rem; font-weight: 600; letter-spacing: 0.08em;
  color: var(--accent); display: flex; align-items: center; gap: 0.75rem;
}
.feature-num::after { content: ""; height: 1px; flex: 0 0 3rem; background: var(--border-strong); }
.feature h3 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin: 0.8rem 0 1rem; }
.feature-text > p, .feature-text li { color: var(--muted); }
.feature-text ul { margin: 1rem 0 0; padding: 0; list-style: none; display: grid; gap: 0.5rem; }
.feature-text ul li { position: relative; padding-left: 1.2rem; }
.feature-text ul li::before {
  content: ""; position: absolute; left: 0.1rem; top: 0.62em; width: 7px; height: 7px; border-radius: 2px; transform: rotate(45deg);
  background: var(--accent);
}
.callout {
  margin-top: 1rem; padding: 0.8rem 1rem; border-radius: 12px;
  background: color-mix(in srgb, var(--fam-obs) 9%, transparent);
  border: 1px solid color-mix(in srgb, var(--fam-obs) 30%, transparent);
  color: var(--text); font-size: 0.92rem;
}
.stage {
  position: relative;
  padding: clamp(1rem, 3vw, 2rem);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(90% 80% at 85% 10%, var(--glow-1), transparent 60%),
    radial-gradient(70% 70% at 0% 100%, var(--glow-2), transparent 60%),
    var(--surface-2);
  border: 1px solid var(--border);
  display: grid; place-items: center;
}
.stage.overlay { display: block; padding-bottom: clamp(2rem, 5vw, 3.5rem); }
.stage.overlay > :last-child { width: 86%; margin-left: auto; }
.stage.overlay > .inset {
  position: absolute; z-index: 2;
  left: clamp(0.75rem, 2.5vw, 1.75rem); bottom: clamp(0.75rem, 2.5vw, 1.75rem);
  width: min(var(--w, 320px), 48%);
}
.stage.duo { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; align-items: start; padding-bottom: clamp(2rem, 5vw, 3rem); }
.stage.duo > :last-child { transform: translateY(12%); }
.stage.stack { display: flex; flex-direction: column; gap: 1.25rem; align-items: flex-start; }
.stage.stack > :last-child { align-self: flex-end; }
.zoom img[style*="--crop"] { aspect-ratio: var(--crop); object-fit: cover; object-position: top; }
.schematic { width: min(100%, 380px); margin: 1.2rem 0 0 auto; }
.schematic .sc-body { fill: var(--surface-2); stroke: var(--border-strong); stroke-width: 1.5; }
.schematic .sc-keys rect { fill: color-mix(in srgb, var(--k) 18%, transparent); stroke: var(--k); stroke-width: 1.5; }
.schematic .sc-strip { fill: color-mix(in srgb, var(--fam-audio) 10%, transparent); stroke: var(--fam-audio); stroke-width: 1.5; }
.schematic .sc-line { stroke: var(--fam-audio); stroke-opacity: 0.45; stroke-width: 1.2; }
.schematic .sc-dials circle { fill: var(--surface); stroke: var(--accent); stroke-width: 1.5; }
@media (prefers-reduced-motion: no-preference) {
  .tile-hero:hover .sc-keys rect { animation: sc-blink 1.6s ease-in-out infinite; }
  .tile-hero:hover .sc-keys rect:nth-child(odd) { animation-delay: 0.4s; }
}
@keyframes sc-blink { 50% { fill-opacity: 0.25; } }
.feature.flip .stage { margin-left: calc(-1 * clamp(0px, 3vw, 2.5rem)); }
.feature:not(.flip) .stage { margin-right: calc(-1 * clamp(0px, 3vw, 2.5rem)); }
.zoom {
  display: block; position: relative; border-radius: 14px; max-width: 100%;
  cursor: zoom-in; color: inherit;
}
.zoom img {
  border-radius: 14px; border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  transition: transform 0.35s cubic-bezier(.2, .7, .2, 1), box-shadow 0.35s;
}
.zoom:hover img { transform: translateY(-4px) scale(1.012); }
.zoom .zoom-badge {
  position: absolute; right: 10px; top: 10px;
  width: 34px; height: 34px; border-radius: 10px;
  display: grid; place-items: center;
  background: rgba(15, 13, 22, 0.72); color: #fff;
  opacity: 0; transform: scale(0.9); transition: opacity 0.2s, transform 0.2s;
}
.zoom .zoom-badge svg { width: 18px; height: 18px; }
.zoom:hover .zoom-badge, .zoom:focus-visible .zoom-badge { opacity: 1; transform: none; }
.small-shot { max-width: 360px; }

/* ---------- Gallery ---------- */
.gallery {
  display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 1rem;
  align-items: start;
}
.gallery figure { margin: 0; }
.gallery figcaption { margin-top: 0.6rem; font-size: 0.88rem; color: var(--muted); }
.gallery .g-a { grid-column: 1 / span 7; }
.gallery .g-b { grid-column: 8 / span 5; margin-top: 4rem; }
.gallery .g-c { grid-column: 1 / span 3; }
.gallery .g-d { grid-column: 4 / span 3; margin-top: 2.5rem; }
.gallery .g-e { grid-column: 7 / span 3; }
.gallery-side { grid-column: 10 / span 3; display: grid; gap: 1rem; margin-top: 2.5rem; }

/* ---------- Actions ---------- */
.actions-layout {
  display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  gap: clamp(2rem, 5vw, 4rem); align-items: start;
}
.actions-intro { position: sticky; top: calc(var(--header-h) + 2rem); }
.actions-intro h2 { font-size: clamp(2rem, 4.4vw, 3.1rem); margin-top: 0.7rem; }
.actions-intro .lead { margin-top: 1rem; }
.tablist { display: none; }
.js .tablist {
  display: flex; flex-direction: column; gap: 0.3rem; margin-top: 1.8rem;
}
.tab {
  display: flex; align-items: center; gap: 0.75rem;
  width: 100%; padding: 0.7rem 0.9rem; border-radius: 14px;
  font: inherit; font-weight: 600; text-align: left; color: var(--muted);
  background: transparent; border: 1px solid transparent; cursor: pointer;
  transition: background-color 0.15s, color 0.15s, border-color 0.15s;
}
.tab .tab-dot { width: 10px; height: 10px; border-radius: 3px; background: var(--c); flex: none; }
.tab .tab-count { margin-left: auto; font-family: var(--font-mono); font-size: 0.78rem; color: var(--muted); }
.tab:hover { color: var(--text); background: var(--surface); }
.tab[aria-selected="true"] { color: var(--text); background: var(--surface); border-color: var(--border); box-shadow: var(--shadow-sm); }
.panels { display: grid; gap: 1rem; }
.panel {
  padding: clamp(1.4rem, 3vw, 2.2rem);
  border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  position: relative; overflow: hidden;
}
.panel::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 4px;
  background: linear-gradient(90deg, var(--c), transparent);
}
.panel h3 { font-size: 1.5rem; display: flex; align-items: center; gap: 0.7rem; }
.panel h3 .tile-icon { margin: 0; }
.panel > p { color: var(--muted); margin-top: 0.9rem; }
.js .panel[hidden] { display: none; }
.js .panel { animation: panel-in 0.35s ease both; }
@keyframes panel-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.action-grid {
  list-style: none; margin: 1.4rem 0 0; padding: 0;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr)); gap: 0.6rem;
}
.action-grid li {
  display: flex; align-items: center; gap: 0.7rem;
  padding: 0.75rem 0.9rem; border-radius: 12px;
  background: var(--surface-2); border: 1px solid var(--border);
  font-size: 0.93rem; font-weight: 550; line-height: 1.35;
  transition: border-color 0.15s, transform 0.15s;
}
.action-grid li:hover { border-color: var(--c); transform: translateX(2px); }
.action-grid svg { width: 20px; height: 20px; flex: none; color: var(--c); }
.action-grid .duo { fill: currentColor; fill-opacity: 0.25; }

/* ---------- Install ---------- */
.install-grid h2 { font-size: clamp(2rem, 4.4vw, 3.1rem); margin-top: 0.7rem; }
.install-grid {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(2rem, 5vw, 4.5rem); align-items: start;
}
.steps { list-style: none; counter-reset: step; margin: 2rem 0 0; padding: 0; display: grid; gap: 1.2rem; }
.steps li { counter-increment: step; display: grid; grid-template-columns: 2.4rem 1fr; gap: 0.9rem; color: var(--muted); }
.steps li::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-mono); font-weight: 600; font-size: 0.85rem;
  width: 2.4rem; height: 2.4rem; border-radius: 12px; display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent);
}
.steps strong { display: block; color: var(--text); font-family: var(--font-display); font-size: 1.05rem; }
.terminal {
  border-radius: var(--radius-lg);
  background: var(--code-bg); color: var(--code-text);
  border: 1px solid #2c2838;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.terminal-bar {
  display: flex; align-items: center; gap: 0.45rem;
  padding: 0.75rem 1rem; border-bottom: 1px solid #2c2838;
  font-family: var(--font-mono); font-size: 0.78rem; color: var(--code-muted);
}
.terminal-bar i { width: 11px; height: 11px; border-radius: 50%; background: #3a3548; }
.terminal-bar i:nth-child(1) { background: #fb7185; }
.terminal-bar i:nth-child(2) { background: #f9cc7a; }
.terminal-bar i:nth-child(3) { background: #7de2b3; }
.terminal-bar span { margin-left: 0.6rem; }
.terminal .code-block { margin: 0; border: 0; border-radius: 0; }
.terminal .code-block pre { border: 0; border-radius: 0; background: transparent; padding: 1.1rem 1.25rem 1.3rem; }
.terminal-note { padding: 0 1.25rem 1.2rem; color: var(--code-muted); font-size: 0.88rem; }
.terminal-note code { background: rgba(255, 255, 255, 0.08); border-color: rgba(255, 255, 255, 0.12); color: var(--code-text); }

/* Code blocks + copy */
.code-block { position: relative; margin: 0.8rem 0 0; }
pre {
  margin: 0;
  background: var(--code-bg); color: var(--code-text);
  border: 1px solid #2c2838; border-radius: 14px;
  padding: 1rem 1.2rem; overflow-x: auto;
  font-size: 0.88rem; line-height: 1.7;
}
pre code { background: none; border: 0; padding: 0; color: inherit; font-size: inherit; overflow-wrap: normal; white-space: pre; }
.copy-btn {
  position: absolute; top: 0.55rem; right: 0.55rem;
  display: inline-flex; align-items: center; gap: 0.35rem;
  padding: 0.35rem 0.6rem; border-radius: 9px;
  font: 600 0.78rem var(--font-body);
  color: #e9e5f5; background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14); cursor: pointer;
  opacity: 0.85; transition: opacity 0.15s, background-color 0.15s;
}
.copy-btn svg { width: 14px; height: 14px; }
.copy-btn:hover, .copy-btn:focus-visible { opacity: 1; background: rgba(255, 255, 255, 0.16); }
.copy-btn.is-copied { color: #0b2b1d; background: #7de2b3; border-color: #7de2b3; }
.code-block.has-copy pre { padding-right: 5.6rem; }

/* ---------- Docs teaser + CTA ---------- */
.teaser-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 1rem; }
.teaser {
  display: flex; flex-direction: column; gap: 0.7rem;
  padding: clamp(1.5rem, 3vw, 2.3rem); border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow-sm);
  text-decoration: none; color: var(--text);
  transition: transform 0.25s ease, box-shadow 0.25s, border-color 0.25s;
}
.teaser:hover { color: var(--text); transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--accent); }
.teaser h3 { font-size: 1.6rem; }
.teaser p { color: var(--muted); }
.teaser .chips { margin-top: 0.3rem; }
.teaser .text-link { margin-top: auto; padding-top: 0.6rem; color: var(--accent); }
.teaser.alt-tone { background: linear-gradient(160deg, var(--accent-soft), var(--surface) 70%); }

.cta-band {
  position: relative; overflow: hidden;
  border-radius: calc(var(--radius-lg) + 6px);
  padding: clamp(2.2rem, 6vw, 4.5rem);
  background:
    radial-gradient(60% 120% at 100% 0%, rgba(133, 220, 232, 0.28), transparent 60%),
    radial-gradient(70% 120% at 0% 100%, rgba(182, 161, 239, 0.4), transparent 60%),
    #17132a;
  color: #f4f1fb;
  display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 2rem; align-items: end;
}
.cta-band h2 { font-size: clamp(2rem, 5vw, 3.4rem); color: #fff; }
.cta-band p { color: #cfc8e4; margin-top: 1rem; max-width: 32rem; }
.cta-band .cta-row { justify-content: flex-end; margin-top: 0; }
.cta-band .btn { background: rgba(255, 255, 255, 0.08); color: #fff; border-color: rgba(255, 255, 255, 0.25); box-shadow: none; }
.cta-band .btn:hover { border-color: #fff; }
.cta-band .btn-primary { background: #f4f1fb; color: #17132a; border-color: transparent; }
.cta-band .btn-primary:hover { color: #17132a; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding-block: 3rem 2.5rem; margin-top: 0; color: var(--muted); font-size: 0.92rem; }
.footer-grid { display: grid; grid-template-columns: minmax(0, 2fr) repeat(2, minmax(0, 1fr)); gap: 2rem; }
.footer-grid h2 { font-size: 0.8rem; font-family: var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--text); margin-bottom: 0.8rem; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.4rem; }
.footer-grid a { color: var(--muted); text-decoration: none; }
.footer-grid a:hover { color: var(--text); }
.footer-grid .brand { margin-bottom: 0.8rem; }
.footer-legal { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.8rem; margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid var(--border); }

/* ---------- Lightbox ---------- */
.lightbox {
  width: min(1180px, 100vw - 32px); max-width: none; max-height: calc(100vh - 32px);
  padding: 0; border: 1px solid var(--border); border-radius: var(--radius-lg);
  background: var(--surface); color: var(--text);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.lightbox::backdrop { background: rgba(8, 6, 14, 0.78); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
.lightbox[open] { display: flex; flex-direction: column; animation: lb-in 0.25s ease both; }
@keyframes lb-in { from { opacity: 0; transform: scale(0.97); } to { opacity: 1; transform: none; } }
.lb-bar { display: flex; align-items: center; gap: 0.5rem; padding: 0.7rem 0.8rem 0.7rem 1.2rem; border-bottom: 1px solid var(--border); }
.lb-count { font-family: var(--font-mono); font-size: 0.8rem; color: var(--muted); margin-right: auto; }
.lb-body { position: relative; flex: 1; min-height: 0; display: grid; place-items: center; padding: 1rem; background: var(--surface-2); overflow: auto; }
.lb-body img { max-height: calc(100vh - 190px); width: auto; max-width: 100%; border-radius: 10px; }
.lb-caption { padding: 0.9rem 1.2rem 1.1rem; color: var(--muted); font-size: 0.95rem; border-top: 1px solid var(--border); }

/* ---------- Docs page ---------- */
.doc-hero { padding-block: clamp(2.5rem, 6vw, 4.5rem) clamp(1.5rem, 4vw, 2.5rem); position: relative; overflow: hidden; }
.doc-hero::before {
  content: ""; position: absolute; right: -10%; top: -60%; width: 60vw; height: 60vw; max-width: 760px; max-height: 760px;
  background: radial-gradient(closest-side, var(--glow-1), transparent 70%); pointer-events: none;
}
.doc-hero-grid { position: relative; display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 2rem; align-items: end; }
.doc-hero h1 { font-size: clamp(2.4rem, 5.5vw, 4.2rem); letter-spacing: -0.035em; margin-top: 0.8rem; }
.doc-hero .lead { margin-top: 1rem; max-width: 40rem; }
.search {
  position: relative; display: none;
}
.js .search { display: block; }
.search label { display: block; font-weight: 600; font-size: 0.9rem; margin-bottom: 0.45rem; }
.search-field { position: relative; }
.search-field svg { position: absolute; left: 0.95rem; top: 50%; transform: translateY(-50%); width: 18px; height: 18px; color: var(--muted); pointer-events: none; }
.search input {
  width: 100%; font: inherit; font-size: 1rem;
  padding: 0.85rem 3rem 0.85rem 2.7rem; border-radius: 14px;
  border: 1px solid var(--border-strong); background: var(--surface); color: var(--text);
  box-shadow: var(--shadow-sm);
}
.search input:focus { outline: 2px solid var(--focus); outline-offset: 1px; border-color: transparent; }
.search kbd {
  position: absolute; right: 0.8rem; top: 50%; transform: translateY(-50%);
  font-family: var(--font-mono); font-size: 0.75rem; padding: 0.1rem 0.45rem;
  border: 1px solid var(--border-strong); border-radius: 6px; color: var(--muted); background: var(--surface-2);
}
.search-status { margin-top: 0.5rem; font-size: 0.85rem; color: var(--muted); min-height: 1.3em; }

.doc-layout {
  display: grid; grid-template-columns: 250px minmax(0, 1fr);
  gap: clamp(2rem, 4vw, 3.5rem); align-items: start;
  padding-bottom: 2rem;
}
.toc {
  position: sticky; top: calc(var(--header-h) + 1.25rem);
  max-height: calc(100vh - var(--header-h) - 2.5rem); overflow: auto;
  padding: 0.4rem 0.2rem 1rem 0;
  font-size: 0.92rem;
}
.toc summary {
  list-style: none; cursor: pointer;
  font-family: var(--font-mono); font-size: 0.75rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted);
  padding: 0.3rem 0 0.7rem;
  display: flex; align-items: center; justify-content: space-between;
}
.toc summary::-webkit-details-marker { display: none; }
.toc summary svg { width: 16px; height: 16px; transition: transform 0.2s; display: none; }
.toc[open] summary svg { transform: rotate(180deg); }
.toc ol { list-style: none; margin: 0; padding: 0; }
.toc > ol > li + li { margin-top: 0.9rem; }
.toc a {
  display: block; padding: 0.3rem 0.75rem; border-left: 2px solid var(--border);
  color: var(--muted); text-decoration: none; line-height: 1.4;
  transition: color 0.15s, border-color 0.15s, background-color 0.15s;
}
.toc > ol > li > a { font-weight: 650; color: var(--text); }
.toc ol ol a { padding-left: 1.3rem; font-size: 0.88rem; }
.toc a:hover { color: var(--text); border-color: var(--border-strong); }
.toc a.is-current { color: var(--accent); border-color: var(--accent); background: linear-gradient(90deg, var(--accent-soft), transparent); }
.toc a.is-filtered { opacity: 0.4; }

.doc-section + .doc-section { margin-top: clamp(3.5rem, 7vw, 5rem); }
.doc-section > header { padding-bottom: 1.4rem; margin-bottom: 1.6rem; border-bottom: 1px solid var(--border); }
.doc-section > header h2 { font-size: clamp(1.9rem, 3.6vw, 2.6rem); margin-top: 0.5rem; }
.doc-section > header p { color: var(--muted); margin-top: 0.8rem; max-width: 52rem; }
.doc-group + .doc-group { margin-top: 2.6rem; }
.doc-group > h3 {
  font-size: 1.3rem; margin-bottom: 1rem;
  display: flex; align-items: center; gap: 0.6rem;
}
.doc-group > h3::before { content: ""; width: 10px; height: 10px; border-radius: 3px; background: var(--c, var(--accent)); }
.cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; align-items: start; }
.card {
  padding: 1.35rem 1.4rem;
  border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s, box-shadow 0.2s;
  min-width: 0;
}
.card:hover { border-color: var(--border-strong); }
.card.wide { grid-column: 1 / -1; }
.card h4 { font-size: 1.08rem; margin-bottom: 0.55rem; letter-spacing: -0.01em; }
.card p, .card li { color: var(--muted); font-size: 0.95rem; }
.card ul, .card ol { margin: 0.7rem 0 0; padding-left: 1.2rem; }
.card li + li { margin-top: 0.3rem; }
.card li::marker { color: var(--accent); }
.card p + ul, .card p + ol, .card ul + p, .card ol + p, .card .code-block + p, .card table + p { margin-top: 0.7rem; }
.card[hidden], .doc-group[hidden] { display: none; }
mark { background: color-mix(in srgb, var(--fam-system) 35%, transparent); color: inherit; border-radius: 3px; padding: 0 1px; }
.table-scroll { overflow-x: auto; margin-top: 0.7rem; border: 1px solid var(--border); border-radius: 12px; }
.ref-table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.ref-table th, .ref-table td { text-align: left; padding: 0.6rem 0.85rem; border-bottom: 1px solid var(--border); vertical-align: top; }
.ref-table tr:last-child th, .ref-table tr:last-child td { border-bottom: 0; }
.ref-table th { color: var(--text); font-weight: 600; white-space: nowrap; }
.ref-table td { color: var(--muted); }
.req-list { list-style: none; padding: 0 !important; }
.req-list li { position: relative; padding-left: 1.4rem; }
.req-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--fam-load); font-weight: 700; }
.no-results {
  padding: 2rem; border-radius: var(--radius); border: 1px dashed var(--border-strong);
  text-align: left; color: var(--muted); margin-top: 1rem;
}
.no-results[hidden] { display: none; }
.to-top {
  position: fixed; right: 16px; bottom: 16px; z-index: 40;
  opacity: 0; pointer-events: none; transform: translateY(8px);
  transition: opacity 0.2s, transform 0.2s;
  box-shadow: var(--shadow-md);
}
.to-top.is-visible { opacity: 1; pointer-events: auto; transform: none; }

/* ---------- Reveal ---------- */
@media (prefers-reduced-motion: no-preference) {
  .js .reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s ease, transform 0.7s cubic-bezier(.2, .7, .2, 1); }
  .js .reveal.is-visible { opacity: 1; transform: none; }
  .js .reveal-delay-1 { transition-delay: 0.08s; }
  .js .reveal-delay-2 { transition-delay: 0.16s; }
  .js .reveal-delay-3 { transition-delay: 0.24s; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .tile-hero { grid-column: span 6; grid-row: auto; }
  .tile-2 { grid-column: span 3; }
  .tile-3 { grid-column: span 3; }
}
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .hero-stage { max-width: 640px; margin-inline: auto; width: 100%; }
  .device { margin-inline: auto; transform: none; }
  .device:hover, .device:focus-within { transform: none; }
  .caption-card { width: auto; margin: -1.5rem 1rem 0; }
  .feature, .feature.flip { grid-template-columns: minmax(0, 1fr); }
  .feature.flip .feature-text { order: 0; }
  .feature .stage { margin: 0 !important; }
  .actions-layout, .install-grid, .teaser-grid, .doc-hero-grid { grid-template-columns: minmax(0, 1fr); }
  .actions-intro { position: static; }
  .js .tablist { flex-direction: row; flex-wrap: wrap; }
  .js .tab { width: auto; padding: 0.5rem 0.8rem; border-color: var(--border); background: var(--surface); }
  .tab .tab-count { margin-left: 0.2rem; }
  .gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .gallery .g-a, .gallery .g-b, .gallery .g-c, .gallery .g-d, .gallery .g-e, .gallery-side { grid-column: auto; margin-top: 0; }
  .gallery .g-a { grid-column: 1 / -1; }
  .gallery-side { grid-column: 1 / -1; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cta-band { grid-template-columns: minmax(0, 1fr); }
  .cta-band .cta-row { justify-content: flex-start; }
  .section-head.offset { margin-left: 0; }
  .doc-layout { grid-template-columns: minmax(0, 1fr); gap: 1.2rem; }
  .toc {
    position: sticky; top: var(--header-h); z-index: 20;
    max-height: none; overflow: visible;
    margin-inline: calc(-1 * var(--gutter)); padding: 0 var(--gutter);
    background: var(--surface-glass);
    -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
  }
  .toc summary { padding: 0.85rem 0; color: var(--text); }
  .toc summary svg { display: block; }
  .toc[open] > ol { max-height: 60vh; overflow: auto; padding-bottom: 1rem; }
}
@media (max-width: 720px) {
  .bento { grid-template-columns: minmax(0, 1fr); }
  .tile-hero, .tile-2, .tile-3 { grid-column: auto; }
  .cards { grid-template-columns: minmax(0, 1fr); }
  .stage.duo > :last-child { transform: translateY(8%); }
  .footer-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .footer-grid > :first-child { grid-column: 1 / -1; }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 1rem; }
  .caption-card { margin: -1rem 0 0; }
}
@media (max-width: 520px) {
  .gallery, .gallery-side { grid-template-columns: minmax(0, 1fr); }
  .cta-row .btn { flex: 1 1 auto; justify-content: center; }
  .hero h1 { font-size: clamp(2.3rem, 11vw, 3rem); }
  .action-grid { grid-template-columns: minmax(0, 1fr); }
  .stage.overlay > :last-child { width: 100%; }
  .stage.overlay > .inset { position: relative; left: auto; bottom: auto; width: min(var(--w, 320px), 80%); margin-top: -2.5rem; margin-left: 0.5rem; }
  .stage.duo { grid-template-columns: minmax(0, 1fr); }
  .stage.duo > :last-child { transform: none; }
}

/* ---------- Motion preferences ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    transition-delay: 0s !important;
  }
  .marquee-track { animation: none !important; }
  .ticker-track { animation: none !important; flex-wrap: wrap; width: auto; }
  .ticker ul[aria-hidden="true"] { display: none; }
  .ticker ul { flex-wrap: wrap; gap: 0.6rem 2rem; }
  .device, .device:hover, .device:focus-within { transform: none; }
}

@media print {
  .site-header, .toc, .copy-btn, .search, .to-top, .ticker, .lightbox { display: none !important; }
  .js .reveal { opacity: 1 !important; transform: none !important; }
}
.docs-page .site-footer { margin-top: clamp(4rem, 8vw, 6rem); }
@media (max-width: 720px) {
  .code-block.has-copy pre, .terminal .code-block.has-copy pre { padding-top: 2.7rem; padding-right: 1.1rem; }
}