/* ============================================================================
   KYVEN — Institutional Site
   Aesthetic: "Quantum Instrument" — deep obsidian canvas, phosphor signal,
   thermal accent, engineered typography, blueprint grid.
   ========================================================================= */

/* ---------- Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Geist:wght@400;500;600;700;800;900&family=IBM+Plex+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

/* ---------- Design tokens ---------- */
:root {
  /* canvas */
  --ink-900: #050706;
  --ink-850: #070a09;
  --ink-800: #0a0e0c;
  --ink-700: #0d1210;
  --ink-650: #111815;
  --ink-600: #16201c;

  /* text */
  --paper:  #e9efe7;
  --silver: #b9c4ba;
  --muted:  #828d83;
  --faint:  #545d55;

  /* signal — phosphor green (dominant accent: correctness / AI / compile) */
  --q:      #a3f73f;
  --q-soft: #c4fa86;
  --q-deep: #66b81f;
  --q-glow: rgba(163, 247, 63, 0.55);
  --q-dim:  rgba(163, 247, 63, 0.10);

  /* quantum aqua — depth only (gradients, glows, logo) */
  --aqua:   #2ff0c4;
  --aqua-dim: rgba(47, 240, 196, 0.12);

  /* thermal — performance heat (benchmarks only) */
  --heat:   #ff7a45;
  --heat-2: #ffb13c;
  --heat-glow: rgba(255, 122, 69, 0.5);

  /* lines */
  --line:    rgba(233, 239, 231, 0.08);
  --line-2:  rgba(233, 239, 231, 0.14);
  --line-q:  rgba(163, 247, 63, 0.16);

  /* type */
  --display: 'Geist', 'Segoe UI', sans-serif;
  --body:    'IBM Plex Sans', 'Segoe UI', sans-serif;
  --mono:    'IBM Plex Mono', ui-monospace, 'Cascadia Code', monospace;

  /* scale */
  --maxw: 1240px;
  --gut: clamp(20px, 5vw, 64px);
  --r-lg: 20px;
  --r-md: 14px;
  --r-sm: 9px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@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; }
}

body {
  font-family: var(--body);
  background: var(--ink-900);
  color: var(--silver);
  line-height: 1.6;
  font-weight: 400;
  font-size: 16.5px;
  letter-spacing: 0.005em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ---------- Atmospheric background layers ---------- */
.bg-field {
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  background:
    radial-gradient(900px 600px at 78% -8%, rgba(47, 240, 196, 0.10), transparent 60%),
    radial-gradient(1100px 700px at 12% 4%, rgba(163, 247, 63, 0.09), transparent 58%),
    radial-gradient(1000px 900px at 50% 120%, rgba(47, 240, 196, 0.06), transparent 55%),
    var(--ink-900);
}
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 100% 80% at 50% 0%, #000 35%, transparent 85%);
  -webkit-mask-image: radial-gradient(ellipse 100% 80% at 50% 0%, #000 35%, transparent 85%);
  opacity: 0.6;
}
.bg-grain {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.04;
  mix-blend-mode: screen;
  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' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Layout helpers ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gut); }
section { position: relative; }
.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--q);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 1px;
  background: linear-gradient(90deg, var(--q), transparent);
}
.sec-head { max-width: 760px; margin-bottom: clamp(40px, 6vw, 72px); }
.sec-head h2 {
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.04;
  color: var(--paper);
  font-size: clamp(2rem, 5.2vw, 3.6rem);
  margin: 22px 0 18px;
}
.sec-head p { font-size: clamp(1rem, 1.6vw, 1.18rem); color: var(--muted); max-width: 62ch; }
.sec-pad { padding-block: clamp(80px, 12vw, 150px); }
.accent { color: var(--q); }
.accent-heat { color: var(--heat); }
.txt-paper { color: var(--paper); }

/* divider rule */
.rule { height: 1px; background: linear-gradient(90deg, transparent, var(--line-2), transparent); border: 0; }

/* Allow grid/flex children to shrink so wide <pre> code doesn't force overflow */
.hero-grid > *, .split > *, .dualflow > *, .versus > *, .bench-grid > *,
.cta-grid > *, .showcase, .show-body, .code-win { min-width: 0; }

/* ============================================================================
   NAV
   ========================================================================= */
header.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  transition: background .4s var(--ease), border-color .4s var(--ease), backdrop-filter .4s;
  border-bottom: 1px solid transparent;
}
header.nav.scrolled {
  background: rgba(7, 10, 9, 0.72);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
  width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gut);
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--paper); }
.brand .logo { width: 34px; height: 34px; display: block; color: var(--q); filter: drop-shadow(0 0 10px var(--q-dim)); }
.brand .wordmark { font-family: var(--display); font-weight: 700; font-size: 1.35rem; letter-spacing: -0.02em; }
.brand .wordmark b { color: var(--q); font-weight: 700; }
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a {
  font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.06em;
  color: var(--muted); text-decoration: none; text-transform: uppercase;
  transition: color .25s; position: relative;
}
.nav-links a:hover { color: var(--paper); }
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: -6px; height: 1px; width: 0;
  background: var(--q); transition: width .3s var(--ease);
}
.nav-links a:hover::after { width: 100%; }
.nav-cta {
  font-family: var(--mono); font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--ink-900) !important; background: var(--q); padding: 9px 16px; border-radius: var(--r-sm);
  font-weight: 600; transition: transform .25s var(--ease), box-shadow .25s;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 8px 24px var(--q-dim); }
.nav-cta::after { display: none; }
.nav-toggle { display: none; background: none; border: 1px solid var(--line-2); border-radius: var(--r-sm); width: 42px; height: 38px; cursor: pointer; color: var(--paper); }
.nav-toggle span { display: block; width: 18px; height: 1.5px; background: currentColor; margin: 4px auto; transition: .3s; }

/* ============================================================================
   BUTTONS
   ========================================================================= */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 13.5px; letter-spacing: 0.04em;
  padding: 14px 22px; border-radius: var(--r-sm); text-decoration: none;
  cursor: pointer; border: 1px solid transparent; transition: all .28s var(--ease);
  white-space: nowrap;
}
.btn-primary { background: var(--q); color: var(--ink-900); font-weight: 600; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 32px var(--q-dim), 0 0 0 1px var(--q-deep); }
.btn-ghost { background: rgba(233,239,231,0.02); color: var(--paper); border-color: var(--line-2); }
.btn-ghost:hover { border-color: var(--q); color: var(--q); background: var(--q-dim); }
.btn svg { width: 16px; height: 16px; }

/* ============================================================================
   HERO
   ========================================================================= */
.hero { position: relative; padding-top: 150px; padding-bottom: clamp(70px, 9vw, 120px); overflow: hidden; }
#hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; opacity: 0.85; }
.hero .wrap { position: relative; z-index: 2; }
.hero-status {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--silver); border: 1px solid var(--line-q); background: rgba(163,247,63,0.04);
  padding: 7px 14px; border-radius: 100px; margin-bottom: 30px; max-width: 100%;
}
.hero-status .dot { flex-shrink: 0; }
.hero-status .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--q); box-shadow: 0 0 0 0 var(--q-glow); animation: pulse 2.4s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 var(--q-glow); } 70% { box-shadow: 0 0 0 9px rgba(163,247,63,0); } 100% { box-shadow: 0 0 0 0 rgba(163,247,63,0); } }

.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(34px, 5vw, 70px); align-items: center; }
.hero h1 {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(2.6rem, 6.6vw, 5.1rem);
  line-height: 0.98;
  letter-spacing: -0.035em;
  color: var(--paper);
  margin-bottom: 26px;
}
.hero h1 .line { display: block; overflow: hidden; }
.hero h1 em {
  font-style: normal;
  position: relative;
  color: var(--q);
  text-shadow: 0 0 38px var(--q-dim);
}
.hero h1 em::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0.08em; height: 0.09em;
  background: linear-gradient(90deg, var(--q), var(--aqua)); opacity: 0.5; border-radius: 2px;
}
.hero-sub { font-size: clamp(1.05rem, 1.7vw, 1.3rem); color: var(--silver); max-width: 46ch; margin-bottom: 36px; }
.hero-sub b { color: var(--paper); font-weight: 600; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 44px; }

.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; }
.hero-stats .stat { background: var(--ink-850); padding: 18px 16px; }
.hero-stats .num { font-family: var(--display); font-weight: 700; font-size: clamp(1.3rem, 2.4vw, 1.9rem); color: var(--paper); letter-spacing: -0.02em; line-height: 1; }
.hero-stats .num .u { color: var(--q); font-size: 0.6em; }
.hero-stats .lbl { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-top: 8px; }

/* ============================================================================
   CODE WINDOW (terminal)
   ========================================================================= */
.code-win {
  background: linear-gradient(180deg, var(--ink-800), var(--ink-850));
  border: 1px solid var(--line-2);
  border-radius: var(--r-md);
  overflow: hidden;
  box-shadow: 0 40px 90px -30px rgba(0,0,0,0.8), 0 0 0 1px rgba(163,247,63,0.04), 0 0 60px -20px var(--q-dim);
  position: relative;
}
.code-win::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background: linear-gradient(180deg, rgba(163,247,63,0.05), transparent 18%);
}
.code-bar { display: flex; align-items: center; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--line); background: rgba(0,0,0,0.25); }
.code-bar .dots { display: flex; gap: 7px; }
.code-bar .dots i { width: 11px; height: 11px; border-radius: 50%; display: block; background: #2a322d; }
.code-bar .dots i:nth-child(1){ background:#3a4640; }
.code-bar .fname { font-family: var(--mono); font-size: 12px; color: var(--muted); margin-left: 8px; }
.code-bar .tag { margin-left: auto; font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--q); border: 1px solid var(--line-q); border-radius: 4px; padding: 3px 8px; }
.code-win pre { margin: 0; padding: 22px 22px 24px; overflow-x: auto; }
.code-win code, pre code { font-family: var(--mono); font-size: 13.5px; line-height: 1.78; color: var(--silver); display: block; white-space: pre; }
.code-win pre::-webkit-scrollbar { height: 8px; }
.code-win pre::-webkit-scrollbar-thumb { background: var(--ink-600); border-radius: 8px; }

/* Kyven syntax token colors */
.tok-kw   { color: var(--q); font-weight: 500; }
.tok-bang { color: var(--heat); font-weight: 600; }
.tok-fn   { color: var(--aqua); }
.tok-str  { color: var(--q-soft); }
.tok-num  { color: var(--heat-2); }
.tok-com  { color: var(--faint); font-style: italic; }
.tok-type { color: #9fd0ff; }
.tok-op   { color: var(--silver); }
.tok-meth { color: var(--paper); }
.tok-q    { color: var(--heat); font-weight: 600; }
.tok-interp { color: var(--heat-2); }

/* ============================================================================
   MARQUEE (stdlib / proof strip)
   ========================================================================= */
.marquee { border-block: 1px solid var(--line); overflow: hidden; padding: 18px 0; background: rgba(7,10,9,0.5); }
.marquee-track { display: flex; gap: 56px; width: max-content; animation: scroll-x 38s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-track span { font-family: var(--mono); font-size: 13px; letter-spacing: 0.04em; color: var(--muted); display: inline-flex; align-items: center; gap: 56px; white-space: nowrap; }
.marquee-track span::after { content: "◇"; color: var(--q); opacity: 0.5; }
@keyframes scroll-x { to { transform: translateX(-50%); } }

/* ============================================================================
   THESIS / DUAL-FLOW
   ========================================================================= */
.thesis-grid { display: grid; grid-template-columns: 1fr; gap: 60px; }
.dualflow {
  display: grid; grid-template-columns: 1fr auto 1fr; gap: clamp(12px, 3vw, 40px); align-items: stretch;
  margin-top: 20px;
}
.flow-col { border: 1px solid var(--line-2); border-radius: var(--r-md); padding: 28px; background: var(--ink-800); position: relative; }
.flow-col h4 { font-family: var(--mono); font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.flow-col .who { font-family: var(--display); font-weight: 700; font-size: 1.5rem; color: var(--paper); margin-bottom: 18px; letter-spacing: -0.02em; }
.flow-col ul { list-style: none; display: grid; gap: 12px; }
.flow-col li { font-size: 0.95rem; color: var(--silver); padding-left: 22px; position: relative; }
.flow-col li::before { content: ""; position: absolute; left: 0; top: 0.6em; width: 9px; height: 9px; border: 1px solid var(--q); border-radius: 2px; transform: rotate(45deg); }
.flow-mid { display: flex; flex-direction: column; justify-content: center; gap: 26px; min-width: 150px; }
.flow-arrow { text-align: center; }
.flow-arrow .tag { font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; display: block; margin-bottom: 8px; }
.flow-arrow.down .tag { color: var(--aqua); }
.flow-arrow.up .tag { color: var(--q); }
.flow-line { position: relative; height: 2px; background: var(--line-2); border-radius: 2px; overflow: visible; }
.flow-line .pip { position: absolute; top: 50%; width: 7px; height: 7px; border-radius: 50%; transform: translateY(-50%); }
.flow-arrow.down .flow-line .pip { background: var(--aqua); animation: flow-r 2.6s linear infinite; box-shadow: 0 0 8px var(--aqua); }
.flow-arrow.up .flow-line .pip { background: var(--q); animation: flow-l 2.6s linear infinite; box-shadow: 0 0 8px var(--q); }
@keyframes flow-r { from { left: -2%; } to { left: 102%; } }
@keyframes flow-l { from { left: 102%; } to { left: -2%; } }
.flow-arrow .desc { font-family: var(--display); font-weight: 700; font-size: 1.15rem; color: var(--paper); margin-top: 10px; }
.flow-arrow .sub { font-size: 0.82rem; color: var(--muted); }

/* ============================================================================
   PILLARS
   ========================================================================= */
.pillars { display: grid; grid-template-columns: repeat(12, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; }
.pillar { background: var(--ink-850); padding: 34px 30px; position: relative; transition: background .35s var(--ease); overflow: hidden; }
.pillar:hover { background: var(--ink-700); }
.pillar::after { content: ""; position: absolute; left: 0; top: 0; height: 2px; width: 0; background: linear-gradient(90deg, var(--q), var(--aqua)); transition: width .45s var(--ease); }
.pillar:hover::after { width: 100%; }
.pillar.col-4 { grid-column: span 4; }
.pillar.col-6 { grid-column: span 6; }
.pillar.col-8 { grid-column: span 8; }
.pillar.col-12 { grid-column: span 12; }
.pillar .ic { width: 40px; height: 40px; color: var(--q); margin-bottom: 20px; }
.pillar h3 { font-family: var(--display); font-weight: 700; font-size: 1.4rem; color: var(--paper); letter-spacing: -0.02em; margin-bottom: 12px; }
.pillar p { font-size: 0.96rem; color: var(--muted); }
.pillar .k { font-family: var(--mono); color: var(--q); font-size: 0.9em; }

/* ============================================================================
   FEATURE SPLIT (KMM / Quantum / Independence)
   ========================================================================= */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(34px, 5vw, 70px); align-items: center; }
.split.rev .split-copy { order: 2; }
.split-copy h2 { font-family: var(--display); font-weight: 700; font-size: clamp(1.9rem, 4.4vw, 3.1rem); color: var(--paper); letter-spacing: -0.025em; line-height: 1.05; margin: 20px 0 20px; }
.split-copy p { color: var(--muted); font-size: 1.05rem; margin-bottom: 18px; }
.split-copy p b { color: var(--silver); font-weight: 600; }
.feat-list { list-style: none; display: grid; gap: 14px; margin-top: 26px; }
.feat-list li { display: flex; gap: 14px; align-items: flex-start; font-size: 0.97rem; color: var(--silver); }
.feat-list li svg { width: 20px; height: 20px; color: var(--q); flex-shrink: 0; margin-top: 2px; }
.feat-list li b { color: var(--paper); font-weight: 600; }

/* capability chips */
.caps { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 26px; }
.cap { font-family: var(--mono); font-size: 12px; color: var(--silver); border: 1px solid var(--line-2); border-radius: 100px; padding: 7px 14px; transition: all .25s; background: rgba(233,239,231,0.015); }
.cap:hover { border-color: var(--q); color: var(--q); background: var(--q-dim); transform: translateY(-2px); }
.cap .c { color: var(--q); }

/* ============================================================================
   BENCHMARKS
   ========================================================================= */
.bench-wrap { display: grid; grid-template-columns: 1fr; gap: 26px; }
.bench-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.bench-card { background: var(--ink-800); border: 1px solid var(--line-2); border-radius: var(--r-md); padding: 28px; }
.bench-card .bc-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 6px; }
.bench-card h4 { font-family: var(--display); font-weight: 700; font-size: 1.25rem; color: var(--paper); letter-spacing: -0.01em; }
.bench-card .unit { font-family: var(--mono); font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
.bench-card .sub { font-size: 0.85rem; color: var(--faint); margin-bottom: 22px; }
.bars { display: grid; gap: 11px; }
.bar-row { display: grid; grid-template-columns: 58px 1fr 64px; align-items: center; gap: 12px; }
.bar-row .lang { font-family: var(--mono); font-size: 12px; color: var(--silver); }
.bar-track { height: 12px; background: rgba(255,255,255,0.035); border-radius: 100px; overflow: hidden; position: relative; }
.bar-fill { height: 100%; width: 0; border-radius: 100px; transition: width 1.2s var(--ease); background: var(--ink-600); }
.bar-row.win .lang { color: var(--q); font-weight: 600; }
.bar-row.win .bar-fill { background: linear-gradient(90deg, var(--q-deep), var(--q)); box-shadow: 0 0 16px var(--q-dim); }
.bar-row .val { font-family: var(--mono); font-size: 12px; color: var(--muted); text-align: right; }
.bar-row.win .val { color: var(--q); }
/* heat variant for throughput card */
.bench-card.heat .bar-row.win .bar-fill { background: linear-gradient(90deg, var(--heat), var(--heat-2)); box-shadow: 0 0 18px var(--heat-glow); }
.bench-card.heat .bar-row.win .lang, .bench-card.heat .bar-row.win .val { color: var(--heat-2); }

.bench-note { font-family: var(--mono); font-size: 12px; color: var(--faint); text-align: center; margin-top: 8px; }
.bench-note a { color: var(--muted); }

/* ============================================================================
   TOKEN COMPARISON (Kyven vs Rust)
   ========================================================================= */
.versus { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.vs-card { border: 1px solid var(--line-2); border-radius: var(--r-md); overflow: hidden; }
.vs-card .vs-top { padding: 14px 20px; font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; display: flex; justify-content: space-between; border-bottom: 1px solid var(--line); }
.vs-card.kv .vs-top { background: var(--q-dim); color: var(--q); }
.vs-card.rs .vs-top, .vs-card.jv .vs-top { background: rgba(255,122,69,0.06); color: var(--heat); }
code.jv { color: #9aa39b; }
.vs-card pre { padding: 20px; margin: 0; overflow-x: auto; }
.vs-meta { display: flex; align-items: center; justify-content: center; gap: 16px; margin-top: 22px; font-family: var(--mono); font-size: 13px; color: var(--muted); }
.vs-meta .big { font-family: var(--display); font-weight: 800; font-size: 2.4rem; color: var(--q); letter-spacing: -0.02em; }

/* ============================================================================
   BUILTIN TYPES grid
   ========================================================================= */
.types-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; }
.type-cell { background: var(--ink-850); padding: 22px 20px; transition: background .3s; cursor: default; }
.type-cell:hover { background: var(--ink-700); }
.type-cell .tn { font-family: var(--mono); font-size: 1.05rem; color: var(--q); margin-bottom: 6px; }
.type-cell .td { font-size: 0.82rem; color: var(--muted); }

/* ============================================================================
   INDEPENDENCE (P24) layered stack
   ========================================================================= */
.stack { display: grid; gap: 12px; }
.layer { border: 1px solid var(--line-2); border-radius: var(--r-md); padding: 22px 26px; background: var(--ink-800); display: grid; grid-template-columns: auto 1fr; gap: 22px; align-items: center; transition: border-color .3s, transform .3s var(--ease); }
.layer:hover { border-color: var(--line-q); transform: translateX(4px); }
.layer .lname { font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--q); width: 130px; }
.layer .ldesc { font-size: 0.95rem; color: var(--silver); }
.layer .ldesc b { color: var(--paper); }
.layer.forbidden { border-style: dashed; opacity: 0.78; }
.layer.forbidden .lname { color: var(--heat); }
.layer.forbidden .ldesc { color: var(--muted); }

/* ============================================================================
   QUICKSTART / CTA
   ========================================================================= */
.cta { position: relative; overflow: hidden; border: 1px solid var(--line-q); border-radius: var(--r-lg); padding: clamp(40px, 6vw, 76px); background:
  radial-gradient(700px 400px at 80% 0%, rgba(47,240,196,0.10), transparent 60%),
  radial-gradient(700px 500px at 10% 100%, rgba(163,247,63,0.10), transparent 60%),
  var(--ink-800); }
.cta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(30px, 5vw, 60px); align-items: center; }
.cta h2 { font-family: var(--display); font-weight: 800; font-size: clamp(2rem, 4.6vw, 3.4rem); color: var(--paper); letter-spacing: -0.03em; line-height: 1.02; margin-bottom: 18px; }
.cta p { color: var(--muted); font-size: 1.08rem; margin-bottom: 30px; max-width: 44ch; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.term { background: rgba(0,0,0,0.4); border: 1px solid var(--line-2); border-radius: var(--r-md); padding: 22px; font-family: var(--mono); font-size: 13.5px; line-height: 2; }
.term .ln { display: block; white-space: pre-wrap; }
.term .p { color: var(--q); }
.term .c { color: var(--paper); }
.term .o { color: var(--faint); }

/* ============================================================================
   FOOTER
   ========================================================================= */
footer.foot { border-top: 1px solid var(--line); padding-block: clamp(50px, 7vw, 80px) 40px; margin-top: clamp(60px, 9vw, 120px); }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 50px; }
.foot-brand .brand { margin-bottom: 18px; }
.foot-brand p { color: var(--muted); font-size: 0.95rem; max-width: 38ch; }
.foot-col h5 { font-family: var(--mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--faint); margin-bottom: 18px; }
.foot-col a { display: block; color: var(--silver); text-decoration: none; font-size: 0.95rem; margin-bottom: 11px; transition: color .25s; }
.foot-col a:hover { color: var(--q); }
.foot-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 14px; padding-top: 30px; border-top: 1px solid var(--line); }
.foot-bottom p { font-family: var(--mono); font-size: 12px; color: var(--faint); }
.foot-bottom .made { color: var(--muted); }
.foot-bottom .made b { color: var(--q); }

/* ============================================================================
   CODE SHOWCASE (tabs)
   ========================================================================= */
.show-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.show-tab {
  font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.02em;
  color: var(--muted); background: rgba(233,239,231,0.02); border: 1px solid var(--line);
  border-radius: var(--r-sm); padding: 9px 16px; cursor: pointer; transition: all .25s var(--ease);
}
.show-tab:hover { color: var(--paper); border-color: var(--line-2); }
.show-tab.active { color: var(--ink-900); background: var(--q); border-color: var(--q); font-weight: 600; }
.show-body .code-win pre { min-height: 280px; }

/* Rust comparison block tokens (muted, to contrast Kyven) */
code.rs { color: #9aa39b; }

/* ============================================================================
   STDLIB domains
   ========================================================================= */
.domain-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; margin-top: 22px; }
.domain { background: var(--ink-850); padding: 20px 22px; display: flex; flex-direction: column; gap: 6px; transition: background .3s; }
.domain:hover { background: var(--ink-700); }
.domain .dm-k { font-family: var(--mono); font-size: 0.95rem; color: var(--q); }
.domain .dm-d { font-family: var(--mono); font-size: 0.8rem; color: var(--muted); }

/* ============================================================================
   USE CASES
   ========================================================================= */
.usecases { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.usecase { border: 1px solid var(--line-2); border-radius: var(--r-md); padding: 32px; background: var(--ink-800); transition: transform .35s var(--ease), border-color .35s; position: relative; overflow: hidden; }
.usecase:hover { transform: translateY(-4px); border-color: var(--line-q); }
.usecase::before { content: ""; position: absolute; inset: 0; background: radial-gradient(400px 200px at 100% 0%, var(--q-dim), transparent 70%); opacity: 0; transition: opacity .4s; }
.usecase:hover::before { opacity: 1; }
.uc-ic { width: 46px; height: 46px; border-radius: var(--r-sm); display: grid; place-items: center; background: var(--q-dim); margin-bottom: 20px; }
.uc-ic svg { width: 24px; height: 24px; color: var(--q); }
.usecase h3 { font-family: var(--display); font-weight: 700; font-size: 1.35rem; color: var(--paper); letter-spacing: -0.02em; margin-bottom: 12px; position: relative; }
.usecase p { color: var(--muted); font-size: 0.97rem; position: relative; }

/* ============================================================================
   COMPARISON TABLE
   ========================================================================= */
.cmp-wrap { border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; }
.cmp { width: 100%; border-collapse: collapse; }
.cmp th, .cmp td { padding: 14px 8px; text-align: center; border-bottom: 1px solid var(--line); }
.cmp td:first-child, .cmp th:first-child { padding-left: 18px; }
.cmp th { font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); background: rgba(0,0,0,0.2); }
.cmp th.hl, .cmp td.hl { background: var(--q-dim); }
.cmp th.hl { color: var(--q); }
.cmp td:first-child, .cmp th:first-child { text-align: left; color: var(--silver); font-family: var(--body); font-size: 0.95rem; text-transform: none; letter-spacing: 0; }
.cmp tbody tr:last-child td { border-bottom: 0; }
.cmp tbody tr:hover td { background: rgba(233,239,231,0.02); }
.cmp tbody tr:hover td.hl { background: rgba(163,247,63,0.14); }
.cmp .yes { color: var(--q); font-size: 1.2rem; }
.cmp .mid { color: var(--heat-2); font-size: 1.2rem; }
.cmp .no { color: var(--faint); font-size: 1.2rem; }
.cmp-legend { font-family: var(--mono); font-size: 12px; color: var(--muted); text-align: center; padding: 16px; }
.cmp-legend .yes { color: var(--q); } .cmp-legend .mid { color: var(--heat-2); } .cmp-legend .no { color: var(--faint); }

/* ============================================================================
   ROADMAP
   ========================================================================= */
.roadmap { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.rm-col { border: 1px solid var(--line-2); border-radius: var(--r-md); padding: 28px; background: var(--ink-800); }
.rm-h { font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; display: flex; align-items: center; gap: 10px; margin-bottom: 20px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.rm-dot { width: 9px; height: 9px; border-radius: 50%; }
.rm-col.done .rm-h { color: var(--q); } .rm-col.done .rm-dot { background: var(--q); box-shadow: 0 0 10px var(--q-glow); }
.rm-col.wip .rm-h { color: var(--heat-2); } .rm-col.wip .rm-dot { background: var(--heat-2); box-shadow: 0 0 10px var(--heat-glow); }
.rm-col.next .rm-h { color: var(--muted); } .rm-col.next .rm-dot { background: var(--muted); }
.rm-col ul { list-style: none; display: grid; gap: 13px; }
.rm-col li { font-size: 0.94rem; color: var(--silver); padding-left: 20px; position: relative; }
.rm-col li::before { content: ""; position: absolute; left: 0; top: 0.62em; width: 6px; height: 6px; border-radius: 50%; background: currentColor; opacity: 0.4; }
.rm-col.done li::before { background: var(--q); opacity: 0.6; }

/* ============================================================================
   Reveal animations
   ========================================================================= */
[data-reveal] { opacity: 0; transform: translateY(26px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
[data-reveal].in { opacity: 1; transform: none; }
[data-reveal][data-d="1"] { transition-delay: .08s; }
[data-reveal][data-d="2"] { transition-delay: .16s; }
[data-reveal][data-d="3"] { transition-delay: .24s; }
[data-reveal][data-d="4"] { transition-delay: .32s; }
[data-reveal][data-d="5"] { transition-delay: .40s; }

/* ============================================================================
   RESPONSIVE
   ========================================================================= */
@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-code-side { max-width: 620px; }
  .split { grid-template-columns: 1fr; }
  .split.rev .split-copy { order: 0; }
  .versus { grid-template-columns: 1fr; }
  .bench-grid { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .pillar.col-4, .pillar.col-6, .pillar.col-8 { grid-column: span 6; }
  .cta-grid { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .nav-links {
    position: fixed; inset: 72px 0 auto 0; flex-direction: column; align-items: flex-start; gap: 0;
    background: rgba(7,10,9,0.97); backdrop-filter: blur(20px); border-bottom: 1px solid var(--line);
    padding: 16px var(--gut); transform: translateY(-130%); transition: transform .4s var(--ease); z-index: 90;
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { padding: 14px 0; width: 100%; border-bottom: 1px solid var(--line); font-size: 14px; }
  .nav-links .nav-cta { margin-top: 14px; }
  .nav-toggle { display: block; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .dualflow { grid-template-columns: 1fr; }
  .flow-mid { flex-direction: row; flex-wrap: wrap; }
  .pillars { grid-template-columns: 1fr; }
  .pillar.col-4, .pillar.col-6, .pillar.col-8, .pillar.col-12 { grid-column: span 1; }
  .foot-grid { grid-template-columns: 1fr; gap: 30px; }
  .foot-bottom { flex-direction: column; align-items: flex-start; }
  body { font-size: 16px; }
}
@media (max-width: 1080px) {
  .roadmap { grid-template-columns: 1fr; }
  .usecases { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .usecases { grid-template-columns: 1fr; }
  .cmp-wrap { overflow-x: auto; }
  .cmp { min-width: 860px; }
  .show-body .code-win pre { min-height: 0; }
}
@media (max-width: 440px) {
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn { justify-content: center; }
  .show-tabs { gap: 6px; }
  .show-tab { padding: 8px 12px; font-size: 11.5px; }
  .hero-status { letter-spacing: 0.04em; font-size: 10.5px; border-radius: 14px; }
}