/* ============================================================
   DarwinOmics Substrate Design System v3
   Precision-instrument language. Dual theme: light + dark.
   One accent per site: bio #00aafe, chem #3ddc97, materials #e5a33f.
   Type: Space Grotesk (display) / Outfit (body) / JetBrains Mono (data).
   Radius rule (engineered, no pills): cards 14px, buttons 8px,
   chips 6px, inputs 10px, bars 2px.
   ============================================================ */

:root {
  color-scheme: dark;

  --bg0: #05080d;
  --bg1: #0a0f16;
  --bg2: #0d141e;
  --bg3: #121b27;
  --line: #1a2432;
  --line2: #26344a;

  --ink: #e9eff7;
  --ink2: #a9b8ca;
  --ink3: #6d7f95;

  --grain-op: 0.028;
  --edge-hi: rgba(255, 255, 255, 0.05);

  --shadow-1: 0 1px 0 var(--edge-hi) inset, 0 14px 34px rgba(2, 6, 12, 0.5), 0 2px 8px rgba(2, 6, 12, 0.4);
  --shadow-2: 0 1px 0 var(--edge-hi) inset, 0 28px 72px rgba(2, 6, 12, 0.62), 0 4px 12px rgba(2, 6, 12, 0.42);
  --glow: 0 22px 54px -18px var(--accent-dim);

  --r-card: 14px;
  --r-btn: 8px;
  --r-chip: 6px;
  --r-input: 10px;

  --container: 1200px;
  --sec-pad: clamp(72px, 10vw, 128px);
}

:root[data-theme="light"] {
  color-scheme: light;

  --bg0: #f6f8fc;
  --bg1: #ffffff;
  --bg2: #ffffff;
  --bg3: #edf2f9;
  --line: #e2e9f2;
  --line2: #c9d5e4;

  --ink: #0c1420;
  --ink2: #3d4c61;
  --ink3: #68788f;

  --grain-op: 0.016;
  --edge-hi: rgba(255, 255, 255, 0.9);

  --shadow-1: 0 1px 0 var(--edge-hi) inset, 0 12px 28px rgba(15, 26, 43, 0.08), 0 2px 6px rgba(15, 26, 43, 0.05);
  --shadow-2: 0 1px 0 var(--edge-hi) inset, 0 22px 56px rgba(15, 26, 43, 0.1), 0 3px 10px rgba(15, 26, 43, 0.06);
  --glow: 0 22px 54px -18px var(--accent-dim);
}

/* ---- Domain accents (fill, text-on-fill, text-on-bg) ---- */

:root[data-variant="bio"], :root:not([data-variant]) {
  --accent: #00aafe;
  --accent-ink: #041018;
  --accent-text: #7dd3fc;
}
:root[data-variant="bio"][data-theme="light"] {
  --accent-text: #0068b4;
}

:root[data-variant="chem"] {
  --accent: #3ddc97;
  --accent-ink: #04140c;
  --accent-text: #6ee7b7;
}
:root[data-variant="chem"][data-theme="light"] {
  --accent: #2fce8c;
  --accent-text: #067647;
}

:root[data-variant="materials"] {
  --accent: #e5a33f;
  --accent-ink: #171003;
  --accent-text: #f0b45e;
}
:root[data-variant="materials"][data-theme="light"] {
  --accent: #dd9a2d;
  --accent-text: #8a5a12;
}

:root {
  --accent-soft: color-mix(in srgb, var(--accent) 12%, transparent);
  --accent-line: color-mix(in srgb, var(--accent) 34%, transparent);
  --accent-dim: color-mix(in srgb, var(--accent) 55%, transparent);
  --accent-tint: color-mix(in srgb, var(--accent) 7%, transparent);
  --font-display: "Space Grotesk", "Outfit", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Outfit", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg0);
  color: var(--ink2);
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.65;
  letter-spacing: 0.002em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background 240ms ease, color 240ms ease;
}

/* Subtle fixed grain to break digital flatness */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 90;
  pointer-events: none;
  opacity: var(--grain-op);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

::selection { background: var(--accent-soft); color: var(--ink); }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }

.skip {
  position: fixed;
  top: -64px;
  left: 16px;
  z-index: 200;
  padding: 10px 16px;
  border-radius: var(--r-btn);
  background: var(--accent);
  color: var(--accent-ink);
  font: 600 13px/1 var(--font-mono);
  transition: top 150ms ease;
}
.skip:focus { top: 14px; }

.container { width: min(var(--container), calc(100% - 48px)); margin-inline: auto; }

/* ---------------- Typography ---------------- */

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--ink);
  font-weight: 600;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

h1 { font-size: clamp(2.55rem, 5.4vw, 4.35rem); line-height: 1.03; letter-spacing: -0.032em; }
h2 { font-size: clamp(1.85rem, 3.1vw, 2.65rem); line-height: 1.08; }
h3 { font-size: 1.22rem; line-height: 1.25; letter-spacing: -0.01em; font-weight: 600; }

.lede {
  font-size: clamp(1.05rem, 1.5vw, 1.22rem);
  color: var(--ink2);
  max-width: 62ch;
  text-wrap: pretty;
}

.eyebrow {
  font: 600 11px/1 var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent-text);
  margin-bottom: 18px;
}

.mono { font-family: var(--font-mono); }

.num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }

strong { color: var(--ink); font-weight: 600; }

/* ---------------- Buttons ---------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 13px 24px;
  border-radius: var(--r-btn);
  font: 600 14.5px/1 var(--font-body);
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: transform 180ms cubic-bezier(0.16, 1, 0.3, 1), box-shadow 180ms ease, background 180ms ease, border-color 180ms ease;
}
.btn:active { transform: translateY(1px) scale(0.985); }

.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: 0 0 0 1px var(--accent-line), 0 10px 30px -12px var(--accent-dim);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 0 0 1px var(--accent-line), 0 16px 38px -12px var(--accent-dim); }

.btn-ghost {
  color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--line2);
  background: color-mix(in srgb, var(--ink) 2%, transparent);
}
.btn-ghost:hover { box-shadow: inset 0 0 0 1px var(--ink3); transform: translateY(-1px); }

.btn .arr { font-family: var(--font-mono); font-weight: 500; transition: transform 200ms ease; }
.btn:hover .arr { transform: translateX(3px); }

.tlink {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font: 600 14px/1 var(--font-body);
  color: var(--accent-text);
}
.tlink .arr { font-family: var(--font-mono); }
.tlink:hover .arr { transform: translateX(3px); }
.tlink .arr, .btn .arr { display: inline-block; }

/* ---------------- Nav ---------------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 80;
  background: color-mix(in srgb, var(--bg0) 80%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}

.nav-in {
  width: min(var(--container), calc(100% - 48px));
  margin-inline: auto;
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.nav-brand { display: inline-flex; align-items: center; gap: 12px; flex-shrink: 0; }
.nav-brand img { height: 30px; width: auto; }

.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a {
  font: 500 13.5px/1 var(--font-body);
  color: var(--ink2);
  letter-spacing: 0.01em;
  transition: color 150ms ease;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a.on { color: var(--ink); }

.nav-right { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }

.theme-btn {
  padding: 9px 14px;
  border-radius: var(--r-btn);
  box-shadow: inset 0 0 0 1px var(--line2);
  color: var(--ink2);
  font: 600 11.5px/1 var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color 150ms ease, box-shadow 150ms ease;
}
.theme-btn:hover { color: var(--ink); box-shadow: inset 0 0 0 1px var(--ink3); }

.net {
  display: inline-flex;
  padding: 4px;
  gap: 2px;
  border-radius: 9px;
  background: var(--bg3);
  box-shadow: inset 0 0 0 1px var(--line);
}
.net a {
  padding: 7px 13px;
  border-radius: 6px;
  font: 600 12px/1 var(--font-mono);
  color: var(--ink3);
  transition: color 150ms ease, background 150ms ease;
}
.net a:hover { color: var(--ink2); }
.net a.on { background: var(--accent-soft); color: var(--accent-text); box-shadow: inset 0 0 0 1px var(--accent-line); }

.nav-signin {
  padding: 10px 19px;
  border-radius: var(--r-btn);
  font: 600 13.5px/1 var(--font-body);
  color: var(--accent-ink);
  background: var(--accent);
  transition: transform 180ms cubic-bezier(0.16, 1, 0.3, 1), box-shadow 180ms ease;
}
.nav-signin:hover { transform: translateY(-1px); box-shadow: 0 10px 26px -12px var(--accent-dim); }

.nav-burger { display: none; width: 40px; height: 40px; align-items: center; justify-content: center; border-radius: var(--r-btn); }
.nav-burger:hover { background: var(--bg3); }
.nav-burger span { display: block; width: 18px; height: 2px; background: var(--ink); position: relative; }
.nav-burger span::before, .nav-burger span::after {
  content: ""; position: absolute; left: 0; width: 18px; height: 2px; background: var(--ink);
}
.nav-burger span::before { top: -6px; }
.nav-burger span::after { top: 6px; }

.nav-drawer { display: none; }

/* ---------------- Status chip (product availability) ---------------- */

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border-radius: var(--r-chip);
  background: var(--accent-soft);
  box-shadow: inset 0 0 0 1px var(--accent-line);
  color: var(--accent-text);
  font: 600 11px/1 var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 22px;
}

/* ---------------- Hero ---------------- */

/* Brand logo, left-aligned above the headline.
   Width is derived from the h1 type scale (h1 line "An AI substrate for"
   measures ~9em), so the lockup always matches the headline width. */
.hero-logo {
  width: min(clamp(23rem, 48.6vw, 39.2rem), 92vw);
  height: auto;
  margin-bottom: 22px;
}

.hero {
  position: relative;
  padding: clamp(56px, 8vh, 104px) 0 clamp(48px, 7vh, 88px);
  background:
    radial-gradient(52% 42% at 78% 12%, var(--accent-tint), transparent 70%),
    radial-gradient(38% 34% at 8% 88%, color-mix(in srgb, var(--ink) 3%, transparent), transparent 70%),
    var(--bg0);
  overflow: hidden;
}

/* Blueprint grid texture, faded toward the edges. The substrate, made visible. */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(color-mix(in srgb, var(--ink) 5%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--ink) 5%, transparent) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(75% 70% at 50% 40%, #000 30%, transparent 100%);
  mask-image: radial-gradient(75% 70% at 50% 40%, #000 30%, transparent 100%);
}

.hero-in {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(40px, 5vw, 72px);
  align-items: start;
}

.hero h1 { margin: 0 0 22px; }
.hero .lede { margin-bottom: 34px; }
.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }

.hero-aside { position: relative; }

/* ---------------- Console (real product preview) ---------------- */

.console {
  border-radius: var(--r-card);
  background: linear-gradient(180deg, var(--bg2), var(--bg1));
  box-shadow: var(--shadow-2), inset 0 0 0 1px var(--line2), inset 0 1px 0 var(--edge-hi);
  overflow: hidden;
  position: relative;
}
/* Instrument bevel: a light line across the top edge */
.console::before {
  content: "";
  position: absolute;
  top: 0;
  left: 12%;
  right: 12%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-line), transparent);
  pointer-events: none;
  z-index: 2;
}

.console-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 18px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--ink) 2%, transparent);
}
.console-title { display: flex; align-items: center; gap: 9px; font: 600 11.5px/1 var(--font-mono); color: var(--ink3); letter-spacing: 0.08em; text-transform: uppercase; }
.console-title img { width: 15px; height: 15px; }
.console-live { font: 600 10.5px/1 var(--font-mono); color: var(--warn, #e5a33f); letter-spacing: 0.14em; text-transform: uppercase; }

.console-rows { padding: 8px 18px; }
.crow {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line);
}
.crow:last-child { border-bottom: 0; }
.crow .k { font: 500 11.5px/1.3 var(--font-mono); color: var(--ink3); letter-spacing: 0.06em; text-transform: uppercase; }
.crow .v { font: 600 15px/1.2 var(--font-mono); color: var(--ink); font-variant-numeric: tabular-nums; text-align: right; }
.crow .v.acc { color: var(--accent-text); }

.console-bars { padding: 16px 18px 6px; border-top: 1px solid var(--line); }
.cbar { margin-bottom: 13px; }
.cbar .meta { display: flex; justify-content: space-between; font: 500 11px/1 var(--font-mono); color: var(--ink3); margin-bottom: 6px; letter-spacing: 0.05em; text-transform: uppercase; }
.cbar .track { height: 4px; border-radius: 2px; background: var(--bg3); overflow: hidden; }
.cbar .fill { height: 100%; border-radius: 2px; background: linear-gradient(90deg, var(--accent-dim), var(--accent)); width: 0; transition: width 1400ms cubic-bezier(0.16, 1, 0.3, 1); }

.console-foot {
  padding: 12px 18px;
  border-top: 1px solid var(--line);
  font: 500 10.5px/1.5 var(--font-mono);
  color: var(--ink3);
  letter-spacing: 0.04em;
  background: color-mix(in srgb, var(--ink) 1.5%, transparent);
}
.console-foot b { color: var(--ink2); font-weight: 600; }

/* ---------------- Stat band ---------------- */

.statband { border-block: 1px solid var(--line); background: var(--bg1); }
.statband-in {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.stat {
  padding: 34px 28px;
  border-left: 1px solid var(--line);
}
.stat:first-child { border-left: 0; }
.stat .n { font: 600 clamp(1.9rem, 3vw, 2.6rem)/1 var(--font-mono); color: var(--ink); font-variant-numeric: tabular-nums; letter-spacing: -0.03em; }
.stat .n em { font-style: normal; color: var(--accent-text); }
.stat .l { margin-top: 10px; font: 500 11px/1.4 var(--font-mono); color: var(--ink3); text-transform: uppercase; letter-spacing: 0.12em; }

/* ---------------- Sections ---------------- */

.sec { padding: var(--sec-pad) 0; position: relative; }
.sec.soft { background: var(--bg1); }
.sec-head { max-width: 720px; margin-bottom: clamp(40px, 5vw, 64px); }
.sec-head .lede { margin-top: 18px; }
.sec-head.split { max-width: none; display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(28px, 4vw, 56px); align-items: end; }

/* ---------------- Bento ---------------- */

.bento {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}
.cell {
  border-radius: var(--r-card);
  background: var(--bg2);
  box-shadow: inset 0 0 0 1px var(--line), var(--shadow-1);
  padding: 30px 28px;
  position: relative;
  overflow: hidden;
  transition: transform 240ms cubic-bezier(0.16, 1, 0.3, 1), box-shadow 240ms ease;
}
.cell:hover { transform: translateY(-4px); box-shadow: inset 0 0 0 1px var(--line2), var(--shadow-2), var(--glow); }
.cell h3 { margin-bottom: 12px; }
.cell p { font-size: 15px; color: var(--ink2); }
.cell .cell-k { font: 600 10.5px/1 var(--font-mono); color: var(--accent-text); text-transform: uppercase; letter-spacing: 0.16em; margin-bottom: 14px; display: block; }
.cell .bignum { font: 600 clamp(2rem, 3.4vw, 2.9rem)/1 var(--font-mono); color: var(--ink); font-variant-numeric: tabular-nums; letter-spacing: -0.03em; margin: 6px 0 10px; }

.cell.w3 { grid-column: span 3; }
.cell.w2 { grid-column: span 2; }
.cell.w4 { grid-column: span 4; }
.cell.w6 { grid-column: span 6; }

.cell.tint {
  background:
    radial-gradient(120% 140% at 100% 0%, var(--accent-soft), transparent 55%),
    linear-gradient(160deg, var(--bg2), var(--bg1));
}
.cell.deep {
  background:
    radial-gradient(140% 120% at 0% 100%, var(--accent-tint), transparent 60%),
    linear-gradient(200deg, var(--bg2), var(--bg1));
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 26px;
}

/* ---------------- Manifesto ---------------- */

.manifesto { padding: var(--sec-pad) 0; border-block: 1px solid var(--line); position: relative; overflow: hidden; }
.manifesto .backdrop {
  position: absolute;
  right: -80px;
  top: 50%;
  transform: translateY(-50%);
  width: 460px;
  opacity: 0.07;
  pointer-events: none;
}
:root[data-theme="light"] .manifesto .backdrop { opacity: 0.1; }
.manifesto blockquote { max-width: 900px; margin-inline: auto; text-align: center; position: relative; }
.manifesto p.q {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.6vw, 3rem);
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--ink);
  font-weight: 600;
  text-wrap: balance;
}
.manifesto p.q em { font-style: normal; color: var(--accent-text); }
.manifesto .who { margin-top: 26px; font: 500 12px/1.6 var(--font-mono); color: var(--ink3); letter-spacing: 0.1em; text-transform: uppercase; }
.manifesto .sub { max-width: 62ch; margin: 30px auto 0; text-align: center; color: var(--ink2); font-size: 1.06rem; }

/* ---------------- Domain rail ---------------- */

.rail { border-top: 1px solid var(--line); }
.rail-row {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 3fr) minmax(0, 4fr) auto;
  gap: clamp(20px, 3vw, 48px);
  align-items: center;
  padding: clamp(28px, 3.5vw, 44px) 0;
  border-bottom: 1px solid var(--line);
  transition: background 200ms ease;
}
a.rail-row:hover { background: linear-gradient(90deg, var(--accent-tint), transparent 60%); }
.rail-row .dr-name { display: flex; align-items: baseline; gap: 18px; }
.rail-row .dr-name h3 { font-size: clamp(1.5rem, 2.4vw, 2.1rem); letter-spacing: -0.02em; }
.rail-row .dr-name .idx { font: 500 12px/1 var(--font-mono); color: var(--ink3); }
.rail-row .dr-count .n { font: 600 clamp(1.5rem, 2.6vw, 2.2rem)/1 var(--font-mono); color: var(--ink); font-variant-numeric: tabular-nums; }
.rail-row .dr-count .cap { font: 500 10.5px/1 var(--font-mono); color: var(--ink3); text-transform: uppercase; letter-spacing: 0.14em; display: block; margin-top: 6px; }
.rail-row .dr-fam { color: var(--ink2); font-size: 14.5px; max-width: 40ch; }
.rail-row .dr-go { font: 600 13px/1 var(--font-mono); color: var(--accent-text); white-space: nowrap; display: inline-flex; gap: 8px; align-items: center; }
.rail-row .dr-go .arr { display: inline-block; transition: transform 200ms ease; }
a.rail-row:hover .dr-go .arr { transform: translateX(4px); }
.rail-row.current .dr-name h3 { color: var(--accent-text); }
.rail-row.current .dr-go { color: var(--ink3); }

/* ---------------- Chips ---------------- */

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  padding: 8px 14px;
  border-radius: var(--r-chip);
  background: var(--bg2);
  box-shadow: inset 0 0 0 1px var(--line);
  font: 500 12.5px/1 var(--font-body);
  color: var(--ink2);
  transition: color 150ms ease, box-shadow 150ms ease;
}
.chip:hover { color: var(--ink); box-shadow: inset 0 0 0 1px var(--line2); }
.chip b { color: var(--accent-text); font-weight: 600; font-family: var(--font-mono); font-size: 11.5px; }

/* ---------------- Spotlight ---------------- */

.spot {
  display: grid;
  grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  gap: clamp(32px, 4vw, 64px);
  align-items: center;
}
.spot-card {
  border-radius: var(--r-card);
  background:
    radial-gradient(130% 150% at 100% 0%, var(--accent-soft), transparent 55%),
    linear-gradient(165deg, var(--bg2), var(--bg1));
  box-shadow: inset 0 0 0 1px var(--line2), var(--shadow-1);
  padding: clamp(28px, 3.5vw, 44px);
}
.spot-card .k { font: 600 10.5px/1 var(--font-mono); color: var(--accent-text); text-transform: uppercase; letter-spacing: 0.16em; margin-bottom: 16px; display: block; }
.spot-card h3 { font-size: clamp(1.45rem, 2.2vw, 1.95rem); margin-bottom: 14px; }
.spot-card p { font-size: 15.5px; }
.spot-rows { margin-top: 26px; }
.spot-rows .crow { border-bottom: 1px solid var(--line); }

/* ---------------- Pipeline ---------------- */

.pipe { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.pipe-step {
  padding: 22px 18px 20px;
  border-radius: var(--r-card);
  background: linear-gradient(180deg, var(--bg2), var(--bg1));
  box-shadow: inset 0 0 0 1px var(--line), var(--shadow-1);
  position: relative;
  transition: transform 220ms cubic-bezier(0.16, 1, 0.3, 1), box-shadow 220ms ease;
}
.pipe-step:hover { transform: translateY(-3px); box-shadow: inset 0 0 0 1px var(--accent-line), var(--shadow-2); }
.pipe-step .n {
  font: 600 11px/1 var(--font-mono);
  color: var(--accent-text);
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 12px;
}
.pipe-step h3 { font-size: 15.5px; margin-bottom: 8px; }
.pipe-step p { font-size: 13px; color: var(--ink3); line-height: 1.5; }
.pipe-step:not(:last-child)::after {
  content: "\2192";
  position: absolute;
  right: -14px;
  top: 26px;
  font: 500 13px/1 var(--font-mono);
  color: var(--ink3);
  z-index: 2;
}

/* ---------------- Pull quote band ---------------- */

.pullband {
  margin-top: clamp(36px, 5vw, 56px);
  border-radius: var(--r-card);
  border-left: 3px solid var(--accent);
  background:
    radial-gradient(110% 160% at 0% 0%, var(--accent-tint), transparent 55%),
    var(--bg2);
  box-shadow: inset 0 0 0 1px var(--line);
  padding: clamp(24px, 3vw, 38px) clamp(24px, 3.5vw, 44px);
}
.pullband p.big { font-family: var(--font-display); font-size: clamp(1.15rem, 1.9vw, 1.5rem); line-height: 1.35; color: var(--ink); font-weight: 600; letter-spacing: -0.01em; text-wrap: balance; }
.pullband p.big em { font-style: normal; color: var(--accent-text); }
.pullband .fine { margin-top: 14px; font: 400 12.5px/1.7 var(--font-mono); color: var(--ink3); }

/* ---------------- Search teaser ---------------- */

.ask {
  border-radius: var(--r-card);
  background:
    radial-gradient(90% 130% at 50% 0%, var(--accent-soft), transparent 60%),
    linear-gradient(180deg, var(--bg2), var(--bg1));
  box-shadow: inset 0 0 0 1px var(--line2), var(--shadow-2);
  padding: clamp(40px, 6vw, 72px) clamp(24px, 4vw, 56px);
  text-align: center;
}
.ask h2 { margin-bottom: 16px; }
.ask .lede { margin: 0 auto 34px; }
.ask-form {
  display: flex;
  gap: 10px;
  max-width: 640px;
  margin: 0 auto 18px;
}
.ask-form input {
  flex: 1;
  min-width: 0;
  padding: 15px 20px;
  border-radius: var(--r-input);
  background: var(--bg0);
  box-shadow: inset 0 0 0 1px var(--line2);
  color: var(--ink);
  font: 400 15px/1.4 var(--font-body);
  outline: none;
  transition: box-shadow 180ms ease;
}
.ask-form input::placeholder { color: var(--ink3); }
.ask-form input:focus { box-shadow: inset 0 0 0 1px var(--accent-line), 0 0 0 4px var(--accent-tint); }
.ask-meta { font: 500 12px/1.6 var(--font-mono); color: var(--ink3); letter-spacing: 0.04em; }
.ask-meta b { color: var(--ink2); font-weight: 600; }

/* ---------------- Models (supported AI surfaces) ---------------- */

.models { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.model {
  border-radius: var(--r-card);
  background: linear-gradient(180deg, var(--bg2), var(--bg1));
  box-shadow: inset 0 0 0 1px var(--line), var(--shadow-1);
  padding: 26px 24px;
  position: relative;
  transition: transform 220ms cubic-bezier(0.16, 1, 0.3, 1), box-shadow 220ms ease;
}
.model:hover { transform: translateY(-4px); box-shadow: inset 0 0 0 1px var(--accent-line), var(--shadow-2), var(--glow); }
.model .m-tag {
  position: absolute;
  top: 20px;
  right: 20px;
  font: 600 9.5px/1 var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink3);
  background: var(--bg3);
  box-shadow: inset 0 0 0 1px var(--line);
  border-radius: var(--r-chip);
  padding: 6px 10px;
}
.model h3 { font-size: 1.18rem; margin-bottom: 10px; }
.model p { font-size: 13.5px; color: var(--ink2); }
.model .m-mono { margin-top: 14px; font: 500 11px/1.5 var(--font-mono); color: var(--ink3); letter-spacing: 0.03em; }
.model.featured {
  grid-column: span 3;
  background:
    radial-gradient(120% 150% at 0% 0%, var(--accent-soft), transparent 55%),
    linear-gradient(165deg, var(--bg2), var(--bg1));
  box-shadow: inset 0 0 0 1px var(--line2), var(--shadow-2);
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: 28px;
  align-items: center;
}
.model.featured:hover { transform: translateY(-3px); box-shadow: inset 0 0 0 1px var(--accent-line), var(--shadow-2), var(--glow); }
.model.featured h3 { font-size: 1.35rem; }
.model.featured .m-rows .crow { border-bottom: 1px solid var(--line); }
@media (max-width: 900px) {
  .models { grid-template-columns: 1fr; }
  .model.featured { grid-column: span 1; grid-template-columns: 1fr; }
}

/* ---------------- Access ---------------- */

.access-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: 16px;
}
.access-col { display: grid; gap: 16px; }
.acard {
  border-radius: var(--r-card);
  background: var(--bg2);
  box-shadow: inset 0 0 0 1px var(--line), var(--shadow-1);
  padding: 30px 28px;
  transition: transform 240ms cubic-bezier(0.16, 1, 0.3, 1), box-shadow 240ms ease;
}
.acard:hover { transform: translateY(-4px); box-shadow: inset 0 0 0 1px var(--line2), var(--shadow-2), var(--glow); }
.acard.featured {
  background:
    radial-gradient(130% 150% at 0% 0%, var(--accent-soft), transparent 55%),
    linear-gradient(160deg, var(--bg2), var(--bg1));
  box-shadow: inset 0 0 0 1px var(--line2);
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: clamp(30px, 3.5vw, 46px);
}
.acard { position: relative; }
.acard .status-chip { margin: 0; }
.acard .tier-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.acard .tier {
  font: 600 10.5px/1 var(--font-mono);
  color: var(--accent-text);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  display: block;
}
.acard h3 { margin-bottom: 10px; font-size: 1.3rem; }
.acard p { font-size: 14.5px; }
.acard ul { list-style: none; margin-top: 18px; display: grid; gap: 9px; }
.acard li { font-size: 14px; color: var(--ink2); padding-left: 20px; position: relative; }
.acard li::before { content: "\2192"; position: absolute; left: 0; font: 500 12px/1.5 var(--font-mono); color: var(--accent-text); }
.acard .tlink { margin-top: auto; padding-top: 18px; }

.access-note {
  margin-top: 22px;
  font: 400 12.5px/1.8 var(--font-mono);
  color: var(--ink3);
  max-width: 88ch;
}
.access-note b { color: var(--ink2); font-weight: 600; }

/* ---------------- Final CTA ---------------- */

.final {
  border-top: 1px solid var(--line);
  padding: var(--sec-pad) 0;
  text-align: center;
  background:
    radial-gradient(56% 60% at 50% 100%, var(--accent-tint), transparent 70%),
    var(--bg0);
}
.final h2 { margin-bottom: 18px; }
.final .lede { margin: 0 auto 36px; }
.final .hero-ctas { justify-content: center; }
.final .mission { margin-top: 30px; font: 500 12px/1.6 var(--font-mono); color: var(--ink3); letter-spacing: 0.05em; }

/* ---------------- Footer ---------------- */

footer { border-top: 1px solid var(--line); background: var(--bg1); padding: 56px 0 40px; }
.foot-in { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 2fr) minmax(0, 2fr) minmax(0, 2fr); gap: 32px; }
.foot-brand img { height: 26px; width: auto; margin-bottom: 16px; }
.foot-brand p { font-size: 13.5px; color: var(--ink3); max-width: 30ch; }
.foot-col h4 { font: 600 11px/1 var(--font-mono); color: var(--ink3); text-transform: uppercase; letter-spacing: 0.14em; margin-bottom: 16px; }
.foot-col a { display: block; font-size: 14px; color: var(--ink2); padding: 5px 0; transition: color 150ms ease; }
.foot-col a:hover { color: var(--ink); }
.foot-col a.acc { color: var(--accent-text); }
.foot-base {
  margin-top: 48px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font: 500 12px/1.5 var(--font-mono);
  color: var(--ink3);
}

/* ---------------- Reveal motion ---------------- */

[data-reveal] { opacity: 0; transform: translateY(22px); }
[data-reveal].in {
  opacity: 1;
  transform: none;
  transition: opacity 700ms cubic-bezier(0.16, 1, 0.3, 1), transform 700ms cubic-bezier(0.16, 1, 0.3, 1);
  transition-delay: calc(var(--ri, 0) * 80ms);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-reveal] { opacity: 1; transform: none; transition: none; }
  .cbar .fill { transition: none; }
  .btn, .rail-row, .cell, .acard { transition: none; }
}

/* ---------------- Responsive ---------------- */

@media (max-width: 1024px) {
  .hero-in { grid-template-columns: 1fr; gap: 44px; }
  .hero-aside { max-width: 560px; }
  .bento { grid-template-columns: repeat(2, 1fr); }
  .cell.w2, .cell.w3, .cell.w4 { grid-column: span 1; }
  .cell.w6 { grid-column: span 2; }
  .pipe { grid-template-columns: repeat(3, 1fr); }
  .pipe-step:not(:last-child)::after { display: none; }
  .statband-in { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3) { border-left: 0; }
  .stat { border-top: 1px solid var(--line); }
  .stat:nth-child(-n+2) { border-top: 0; }
  .spot { grid-template-columns: 1fr; }
  .access-grid { grid-template-columns: 1fr; }
  .sec-head.split { grid-template-columns: 1fr; }
  .rail-row { grid-template-columns: minmax(0, 1fr) auto; }
  .rail-row .dr-fam { display: none; }
  .foot-in { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links, .nav-right .net { display: none; }
  .nav-burger { display: inline-flex; }
  .nav-drawer {
    display: block;
    max-height: 0;
    overflow: hidden;
    transition: max-height 320ms cubic-bezier(0.16, 1, 0.3, 1);
    border-bottom: 1px solid transparent;
  }
  .nav-drawer.open { max-height: 480px; border-bottom: 1px solid var(--line); }
  .nav-drawer-in { padding: 18px 24px 26px; display: grid; gap: 6px; }
  .nav-drawer a { padding: 12px 4px; font: 500 15px/1 var(--font-body); color: var(--ink2); border-bottom: 1px solid var(--line); }
  .nav-drawer a:last-child { border-bottom: 0; }
  .nav-drawer .net { margin: 10px 0 4px; display: inline-flex; }
  .nav-drawer .theme-btn { margin: 8px 0 4px; justify-self: start; }
  .ask-form { flex-direction: column; }
  .bento { grid-template-columns: 1fr; }
  .cell.w6 { grid-column: span 1; }
  .statband-in { grid-template-columns: 1fr 1fr; }
  .pipe { grid-template-columns: 1fr 1fr; }
  .foot-in { grid-template-columns: 1fr 1fr; }
  .container, .nav-in { width: calc(100% - 40px); }
}
/* ============================================================
   v5 additions: records, marks, ledger, layer stack, doors
   ============================================================ */

/* ---- Breadcrumbs ---- */
.crumbs { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 24px; font: 500 11.5px/1 var(--font-mono); color: var(--ink3); text-transform: uppercase; letter-spacing: 0.1em; }
.crumbs a { color: var(--ink3); transition: color 140ms ease; }
.crumbs a:hover { color: var(--ink); }
.crumbs .sep { color: var(--line2); }
.crumbs .here { color: var(--accent-text); }

/* ---- Hero moods: one texture family per domain ---- */
.hero-mood { position: absolute; inset: 0; pointer-events: none; }
.mood-bio {
  background:
    radial-gradient(34% 30% at 82% 10%, color-mix(in srgb, #00aafe 10%, transparent), transparent 72%),
    radial-gradient(2.4px 2.4px at 12% 78%, color-mix(in srgb, #00aafe 34%, transparent), transparent 100%),
    radial-gradient(2px 2px at 28% 32%, color-mix(in srgb, #00aafe 22%, transparent), transparent 100%),
    radial-gradient(2.8px 2.8px at 71% 62%, color-mix(in srgb, #00aafe 26%, transparent), transparent 100%),
    radial-gradient(2.2px 2.2px at 88% 84%, color-mix(in srgb, #00aafe 18%, transparent), transparent 100%);
}
.mood-chem {
  background:
    radial-gradient(30% 26% at 84% 16%, color-mix(in srgb, #3ddc97 10%, transparent), transparent 70%),
    linear-gradient(115deg, transparent 42%, color-mix(in srgb, #3ddc97 6%, transparent) 46%, color-mix(in srgb, #3ddc97 12%, transparent) 50%, color-mix(in srgb, #3ddc97 6%, transparent) 54%, transparent 58%);
}
.mood-materials {
  background-image:
    linear-gradient(color-mix(in srgb, #e5a33f 9%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, #e5a33f 9%, transparent) 1px, transparent 1px),
    radial-gradient(3px 3px at 62% 38%, color-mix(in srgb, #e5a33f 30%, transparent), transparent 100%);
  background-size: 38px 38px, 38px 38px, 100% 100%;
  -webkit-mask-image: radial-gradient(70% 75% at 60% 30%, #000 25%, transparent 100%);
  mask-image: radial-gradient(70% 75% at 60% 30%, #000 25%, transparent 100%);
}
.mood-home {
  background-image:
    linear-gradient(color-mix(in srgb, var(--ink) 6%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--ink) 6%, transparent) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(75% 70% at 50% 36%, #000 25%, transparent 100%);
  mask-image: radial-gradient(75% 70% at 50% 36%, #000 25%, transparent 100%);
}

/* ---- Generative house marks (per-entry brand) ---- */
.mark {
  width: 30px; height: 30px; border-radius: 8px;
  display: grid; place-items: center;
  font: 600 11px/1 var(--font-mono); letter-spacing: 0.02em;
  color: hsl(var(--mh, 214) 70% 68%);
  background: linear-gradient(145deg, hsl(var(--mh, 214) 62% 50% / 0.17), hsl(calc(var(--mh, 214) + 46) 55% 46% / 0.08));
  box-shadow: inset 0 0 0 1px hsl(var(--mh, 214) 60% 62% / 0.32), inset 0 1px 0 rgba(255, 255, 255, 0.07);
  flex-shrink: 0; overflow: hidden;
}
.mark img { width: 100%; height: 100%; object-fit: contain; padding: 3px; }
:root[data-theme="light"] .mark {
  color: hsl(var(--mh, 214) 60% 32%);
  background: linear-gradient(145deg, hsl(var(--mh, 214) 58% 46% / 0.2), hsl(calc(var(--mh, 214) + 46) 55% 42% / 0.1));
  box-shadow: inset 0 0 0 1px hsl(var(--mh, 214) 55% 40% / 0.38), inset 0 1px 0 rgba(255, 255, 255, 0.85);
}
.mark.mark-lg { width: 76px; height: 76px; border-radius: 16px; font-size: 27px; }
.mark.mark-lg img { padding: 7px; }

/* ---- Record rows (catalog listings) ---- */
.rows { display: grid; grid-template-columns: 1fr 1fr; gap: 7px 12px; }
a.trow {
  display: grid; grid-template-columns: 30px minmax(0, 1fr) auto; gap: 12px; align-items: center;
  padding: 8px 12px 8px 8px; border-radius: 9px;
  background: var(--bg1); box-shadow: inset 0 0 0 1px var(--line);
  color: var(--ink2);
  transition: color 140ms ease, box-shadow 140ms ease, transform 140ms ease;
}
a.trow:hover { color: var(--ink); box-shadow: inset 0 0 0 1px var(--accent-line), var(--shadow-1); transform: translateY(-1px); }
a.trow .tname { font: 500 12.5px/1.35 var(--font-mono); color: var(--ink); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
a.trow .tkind { font: 500 10px/1 var(--font-mono); color: var(--ink3); text-transform: uppercase; letter-spacing: 0.1em; justify-self: end; }

/* ---- Access ledger (tiers as rows, not towers) ---- */
.ledger { border-radius: var(--r-card); overflow: hidden; box-shadow: var(--shadow-2), inset 0 0 0 1px var(--line2), inset 0 1px 0 var(--edge-hi); background: var(--bg1); }
.ledger-row { display: grid; grid-template-columns: minmax(0, 2.2fr) minmax(0, 6fr) auto; gap: clamp(16px, 3vw, 40px); align-items: start; padding: clamp(20px, 2.6vw, 30px) clamp(20px, 3vw, 34px); border-bottom: 1px solid var(--line); transition: background 160ms ease; }
.ledger-row:last-child { border-bottom: 0; }
.ledger-row:hover { background: color-mix(in srgb, var(--ink) 1.6%, transparent); }
.ledger-row .lg-name { font: 600 17px/1.3 var(--font-display); color: var(--ink); letter-spacing: -0.01em; }
.ledger-row .lg-kind { font: 500 10.5px/1 var(--font-mono); color: var(--ink3); text-transform: uppercase; letter-spacing: 0.14em; margin-top: 7px; }
.ledger-row .lg-desc { color: var(--ink2); font-size: 14.5px; max-width: 60ch; }
.ledger-row .lg-desc + .lg-desc { margin-top: 6px; }
.ledger-row .lg-state { font: 600 10.5px/1 var(--font-mono); color: var(--ink3); text-transform: uppercase; letter-spacing: 0.12em; white-space: nowrap; padding-top: 5px; }
.ledger-row.hot .lg-state { color: var(--accent-text); }
@media (max-width: 860px) { .ledger-row { grid-template-columns: 1fr auto; } .ledger-row .lg-desc { grid-column: 1 / -1; } }

/* ---- Layer stack (the substrate diagram) ---- */
.stack { display: grid; gap: 10px; }
.stack-layer { border-radius: 12px; padding: 15px 20px; display: flex; justify-content: space-between; align-items: baseline; gap: 16px; background: var(--bg1); box-shadow: inset 0 0 0 1px var(--line); }
.stack-layer .sl-name { font: 600 14px/1.3 var(--font-body); color: var(--ink); }
.stack-layer .sl-sub { font: 400 12.5px/1.4 var(--font-body); color: var(--ink3); }
.stack-layer.mid { background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 7%, var(--bg1)), var(--bg1)); box-shadow: inset 0 0 0 1px var(--accent-line), var(--shadow-1); }
.stack-layer.mid .sl-name { color: var(--accent-text); }
.stack-arrow { text-align: center; font: 500 13px/1 var(--font-mono); color: var(--ink3); }

/* ---- Domain doors (home) ---- */
.doors { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 4fr) minmax(0, 4fr); gap: 14px; align-items: stretch; }
.door { position: relative; text-align: left; border-radius: var(--r-card); padding: clamp(22px, 2.8vw, 32px); background: var(--bg1); box-shadow: inset 0 0 0 1px var(--line), var(--shadow-1); overflow: hidden; display: flex; flex-direction: column; gap: 40px; transition: transform 200ms cubic-bezier(0.16, 1, 0.3, 1), box-shadow 200ms ease; min-height: 300px; }
.door:hover { transform: translateY(-3px); box-shadow: inset 0 0 0 1px var(--accent-line), var(--shadow-2); }
.door .d-idx { font: 600 11px/1 var(--font-mono); color: var(--ink3); letter-spacing: 0.16em; }
.door h3 { font-size: clamp(1.4rem, 2vw, 1.8rem); }
.door .d-count { font: 500 12px/1.6 var(--font-mono); color: var(--ink3); }
.door .d-count b { color: var(--ink); font-weight: 600; font-variant-numeric: tabular-nums; }
.door .d-line { color: var(--ink2); font-size: 14px; max-width: 34ch; }
.door .d-mood { position: absolute; inset: 0; opacity: 0.5; pointer-events: none; }
.door .d-name { position: relative; }
.door .d-foot { position: relative; margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.door-wide { grid-row: span 1; }
:root .door[data-hue="bio"]:hover { box-shadow: inset 0 0 0 1px color-mix(in srgb, #00aafe 40%, transparent), var(--shadow-2); }
:root .door[data-hue="chem"]:hover { box-shadow: inset 0 0 0 1px color-mix(in srgb, #3ddc97 40%, transparent), var(--shadow-2); }
:root .door[data-hue="materials"]:hover { box-shadow: inset 0 0 0 1px color-mix(in srgb, #e5a33f 40%, transparent), var(--shadow-2); }
@media (max-width: 980px) { .doors { grid-template-columns: 1fr; } .door { min-height: 0; gap: 24px; } }

/* ---- Chronology strip (origins) ---- */
.chron { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-block: 1px solid var(--line); }
.chron-cell { padding: clamp(20px, 2.4vw, 28px) clamp(18px, 2.2vw, 28px); border-left: 1px solid var(--line); }
.chron-cell:first-child { border-left: 0; }
.chron-cell .c-idx { font: 600 11px/1 var(--font-mono); color: var(--accent-text); letter-spacing: 0.14em; }
.chron-cell h3 { font-size: 15.5px; margin: 12px 0 8px; }
.chron-cell p { color: var(--ink2); font-size: 13.5px; }
@media (max-width: 900px) { .chron { grid-template-columns: 1fr 1fr; } .chron-cell:nth-child(3) { border-left: 0; } }

/* ---- Manifesto band ---- */
.manifesto { border-block: 1px solid var(--line); background: linear-gradient(180deg, var(--bg1), var(--bg0)); }
.manifesto blockquote { font: 500 clamp(1.35rem, 2.6vw, 2.1rem)/1.35 var(--font-display); color: var(--ink); letter-spacing: -0.015em; text-wrap: balance; max-width: 30ch; }
.manifesto blockquote em { font-style: normal; color: var(--accent-text); }