/* GLUED — site styles. Single sheet, no framework. */

/* ─── Tokens ─────────────────────────────────────────────────────────── */
:root {
  --bg:           #08090c;
  --bg-2:         #0d0f13;
  --panel:        #12141a;
  --panel-2:      #171a21;
  --panel-hover:  #1c2029;
  --border:       #20242c;
  --border-2:     #2a2f39;
  --border-3:     #353a44;

  --text:         #e8ebf0;
  --text-muted:   #969fae;
  --text-dim:     #5d6470;

  --accent:       #5cb8ff;
  --accent-2:     #7cc5ff;
  --accent-soft:  rgba(92, 184, 255, 0.12);
  --accent-line:  rgba(92, 184, 255, 0.32);

  --warm:         #ff9b5e;
  --warm-soft:    rgba(255, 155, 94, 0.12);
  --warm-line:    rgba(255, 155, 94, 0.30);

  --good:         #6cd4a8;
  --warn:         #f5c264;

  --container:    1200px;
  --container-tight: 880px;

  --radius-sm:    6px;
  --radius:       10px;
  --radius-lg:    14px;

  --font-sans:    'Inter', -apple-system, BlinkMacSystemFont, system-ui, 'Segoe UI', sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  --ease:         cubic-bezier(0.2, 0.7, 0.2, 1);
}

/* ─── Reset & base ───────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'cv11', 'ss01';
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* Subtle ambient gradient washes — gives depth without weight */
body::before {
  content: '';
  position: fixed; inset: 0; pointer-events: none; z-index: -1;
  background:
    radial-gradient(60% 50% at 75% -8%, rgba(92, 184, 255, 0.08), transparent 60%),
    radial-gradient(45% 38% at 8% 12%, rgba(255, 155, 94, 0.04), transparent 60%);
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; padding: 0; }
img, svg { display: block; max-width: 100%; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 3px; }

/* ─── Layout helpers ─────────────────────────────────────────────────── */
.container       { max-width: var(--container); margin: 0 auto; padding: 0 28px; }
.container-tight { max-width: var(--container-tight); margin: 0 auto; padding: 0 28px; }

.mono   { font-family: var(--font-mono); font-feature-settings: 'calt' 0; }
.muted  { color: var(--text-muted); }
.dim    { color: var(--text-dim); }
.accent { color: var(--accent); }
.warm   { color: var(--warm); }

/* ─── Header ─────────────────────────────────────────────────────────── */
.header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px 28px;
  display: flex; align-items: center; gap: 28px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 600; letter-spacing: -0.01em;
  color: var(--text);
  flex-shrink: 0;
}
.brand svg { width: 24px; height: 24px; }
.brand-name { font-size: 15.5px; }
.brand-tag {
  font-family: var(--font-mono);
  font-size: 10.5px; font-weight: 500;
  color: var(--text-dim);
  letter-spacing: 0.02em;
  padding: 2px 7px;
  border: 1px solid var(--border);
  border-radius: 999px;
  margin-left: 4px;
}
.nav { display: flex; gap: 2px; flex: 1; }
.nav a {
  font-size: 13.5px;
  color: var(--text-muted);
  padding: 7px 12px;
  border-radius: var(--radius-sm);
  transition: color 0.15s var(--ease), background 0.15s var(--ease);
  white-space: nowrap;
}
.nav a:hover { color: var(--text); background: var(--panel); }
.nav a.active { color: var(--text); background: var(--panel); }
.header-cta { display: flex; gap: 8px; align-items: center; }

.header-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  border-radius: 8px;
  color: var(--text-dim);
  transition: color .15s ease, background .15s ease;
}
.header-icon:hover { color: var(--text); background: var(--panel); }

.menu-toggle {
  display: none;
  width: 38px; height: 38px;
  align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
}
.menu-toggle:hover { background: var(--panel); color: var(--text); }
.menu-toggle svg { width: 20px; height: 20px; }

/* ─── Buttons ────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 500;
  border: 1px solid var(--border-2);
  background: var(--panel);
  color: var(--text);
  transition: all 0.15s var(--ease);
  letter-spacing: -0.005em;
  cursor: pointer;
  white-space: nowrap;
}
.btn:hover { background: var(--panel-hover); border-color: var(--border-3); }
.btn-primary {
  background: linear-gradient(180deg, var(--accent-2), var(--accent));
  color: #061626;
  border-color: var(--accent);
  font-weight: 600;
  box-shadow: 0 1px 0 0 rgba(255,255,255,0.18) inset, 0 4px 14px -4px rgba(92,184,255,0.45);
}
.btn-primary:hover { filter: brightness(1.08); border-color: var(--accent-2); }
.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--text-muted);
}
.btn-ghost:hover { color: var(--text); background: var(--panel); }
.btn-sm { padding: 6px 11px; font-size: 12.5px; }

/* ─── Pills ──────────────────────────────────────────────────────────── */
.pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 10px;
  font-size: 11.5px;
  font-family: var(--font-mono);
  border: 1px solid var(--border-2);
  border-radius: 999px;
  color: var(--text-muted);
  background: var(--panel);
  letter-spacing: -0.005em;
}
.pill.accent { color: var(--accent); border-color: var(--accent-line); background: var(--accent-soft); }
.pill.warm   { color: var(--warm);   border-color: var(--warm-line);   background: var(--warm-soft); }
.pill.good   { color: var(--good);   border-color: rgba(108,212,168,0.3); background: rgba(108,212,168,0.10); }

/* ─── Selection / scrollbar ──────────────────────────────────────────── */
::selection { background: rgba(92, 184, 255, 0.32); color: #fff; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-2); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-3); }

/* ═════════════════════════════════════════════════════════════════════
   LANDING
   ═════════════════════════════════════════════════════════════════════ */

/* ─── Hero ───────────────────────────────────────────────────────────── */
.hero {
  max-width: var(--container);
  margin: 0 auto;
  padding: 72px 28px 88px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 56px;
  align-items: center;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.02em;
  color: var(--accent);
  margin-bottom: 22px;
  padding: 5px 12px;
  border: 1px solid var(--accent-line);
  border-radius: 999px;
  background: var(--accent-soft);
}
.hero-eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
  animation: pulse 1.8s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

.hero h1 {
  font-size: clamp(40px, 5.4vw, 64px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  margin: 0 0 22px;
  font-weight: 600;
  text-wrap: balance;
}
.hero h1 .hl {
  background: linear-gradient(120deg, var(--accent) 30%, #b39bff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero .lede {
  font-size: 17px;
  line-height: 1.6;
  color: var(--text-muted);
  max-width: 540px;
  margin: 0 0 30px;
}
.hero-cta {
  display: flex; gap: 10px; flex-wrap: wrap;
  margin-bottom: 24px;
}
.hero-stats {
  display: flex; gap: 8px; flex-wrap: wrap;
  margin-top: 24px;
}

/* Hero "frame" — terminal-style window for code preview */
.frame {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow:
    0 30px 60px -30px rgba(0,0,0,0.6),
    0 1px 0 0 rgba(255,255,255,0.04) inset,
    0 0 0 1px rgba(92, 184, 255, 0.04) inset;
}
.frame-bar {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 14px;
  background: var(--panel-2);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-muted);
}
.frame-dots { display: flex; gap: 6px; }
.frame-dots i {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--border-2);
}
.frame-title { color: var(--text); }
.frame-meta { color: var(--text-dim); margin-left: auto; font-size: 10.5px; }
.frame-copy {
  margin-left: auto;
  font-family: var(--font-mono); font-size: 10.5px;
  color: var(--text-dim);
  padding: 3px 10px;
  border-radius: 4px;
  border: 1px solid var(--border-2);
  background: transparent;
  transition: color 0.15s, border-color 0.15s;
}
.frame-copy:hover { color: var(--text); border-color: var(--border-3); }
.frame-copy.ok { color: var(--good); border-color: rgba(108,212,168,0.3); }

.code {
  margin: 0;
  padding: 20px 22px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: #c8d0db;
  overflow-x: auto;
  white-space: pre;
  tab-size: 2;
}
.code .ln  { display: inline-block; width: 28px; color: var(--text-dim); opacity: 0.55; user-select: none; text-align: right; margin-right: 14px; }
.code .kw  { color: #c592ff; }
.code .fn  { color: var(--accent); }
.code .num { color: var(--warm); }
.code .str { color: #b5e8a3; }
.code .com { color: var(--text-dim); font-style: italic; }
.code .self{ color: #ff8aa8; }
.code .op  { color: #99a6b6; }

/* ─── Sections ───────────────────────────────────────────────────────── */
.section {
  padding: 88px 0;
  border-top: 1px solid var(--border);
}
.section-head {
  max-width: var(--container);
  margin: 0 auto 48px;
  padding: 0 28px;
}
.section-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11.5px; color: var(--accent);
  letter-spacing: 0.04em; text-transform: uppercase;
  margin-bottom: 14px;
}
.section-title {
  font-size: clamp(28px, 3.4vw, 40px);
  font-weight: 600;
  letter-spacing: -0.025em;
  margin: 0 0 14px;
  text-wrap: balance;
  max-width: 760px;
  line-height: 1.15;
}
.section-sub {
  font-size: 16px; color: var(--text-muted);
  max-width: 640px; line-height: 1.6;
  margin: 0;
}

/* ─── Architecture card ──────────────────────────────────────────────── */
.arch-card {
  max-width: var(--container);
  margin: 0 auto;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(800px 240px at 80% 0%, rgba(92, 184, 255, 0.06), transparent 60%),
    var(--panel);
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 40px;
  align-items: center;
  position: relative;
  margin-left: 28px;
  margin-right: 28px;
}
@media (min-width: 1280px) {
  .arch-card { margin-left: auto; margin-right: auto; }
}
.flow-svg { width: 100%; height: auto; display: block; }
.arch-meta {
  display: grid; gap: 0;
  font-family: var(--font-mono); font-size: 12.5px;
}
.arch-meta > div {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--border);
}
.arch-meta > div:last-child { border-bottom: none; }
.arch-meta .k { color: var(--text-dim); }
.arch-meta .v { color: var(--text); text-align: right; }
.arch-meta .v code {
  background: var(--bg-2);
  padding: 1px 6px;
  border-radius: 3px;
  border: 1px solid var(--border);
  font-size: 11.5px;
}
.inline-link { color: var(--accent); border-bottom: 1px dashed var(--accent-line); transition: color 0.12s; }
.inline-link:hover { color: var(--accent-2); border-bottom-color: var(--accent); }

/* ─── Quickstart split section ───────────────────────────────────────── */
.split {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 56px;
  align-items: center;
}
.split-text h2 {
  font-size: clamp(28px, 3vw, 36px);
  font-weight: 600;
  letter-spacing: -0.025em;
  margin: 0 0 14px;
}
.split-text p { color: var(--text-muted); line-height: 1.65; max-width: 480px; }
.split-text ul {
  list-style: none; padding: 0; margin: 22px 0 0;
  display: grid; gap: 12px;
}
.split-text ul li {
  font-size: 13.5px;
  display: flex; align-items: baseline; gap: 12px;
  color: var(--text-muted);
  line-height: 1.55;
}
.split-text ul li::before {
  content: ''; width: 14px; height: 1px; background: var(--accent);
  display: inline-block; flex-shrink: 0; transform: translateY(-3px);
}
.more {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 22px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  transition: gap 0.15s var(--ease);
}
.more:hover { gap: 10px; color: var(--accent-2); }

/* ─── Feature strip ──────────────────────────────────────────────────── */
.strip {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.strip-card {
  display: block;
  padding: 26px 26px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  transition: border-color 0.15s var(--ease), background 0.15s var(--ease), transform 0.2s var(--ease);
}
.strip-card:hover {
  border-color: var(--accent-line);
  background: var(--panel-hover);
  transform: translateY(-1px);
}
.strip-num {
  font-size: 38px; font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--accent);
  font-feature-settings: 'tnum';
  font-family: var(--font-mono);
  margin-bottom: 4px;
  line-height: 1;
}
.strip-name {
  font-size: 15.5px; font-weight: 600;
  margin: 12px 0 8px;
  letter-spacing: -0.01em;
}
.strip-meta {
  font-family: var(--font-mono);
  font-size: 11.5px; color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 18px;
}
.strip-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px; color: var(--accent);
  transition: gap 0.15s var(--ease);
}
.strip-card:hover .strip-link { gap: 10px; }

/* ─── CTA ────────────────────────────────────────────────────────────── */
.cta-band {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}
.cta-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 56px;
  background:
    radial-gradient(900px 320px at 85% 0%, rgba(92, 184, 255, 0.14), transparent 60%),
    radial-gradient(600px 200px at 10% 100%, rgba(255, 155, 94, 0.06), transparent 60%),
    var(--panel);
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 48px;
}
.cta-card h3 {
  font-size: 28px; font-weight: 600;
  letter-spacing: -0.025em;
  margin: 0 0 10px;
  line-height: 1.2;
}
.cta-card p { color: var(--text-muted); margin: 0; max-width: 540px; line-height: 1.55; }
.cta-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* ─── Footer ─────────────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  margin-top: 96px;
  padding: 56px 0 40px;
  color: var(--text-muted);
  font-size: 13.5px;
}
.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
}
.footer-col h5 {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 0 0 14px 0;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 9px; }
.footer-col a { color: var(--text-muted); transition: color 0.12s; }
.footer-col a:hover { color: var(--text); }
.footer-tag {
  font-size: 13px; color: var(--text-muted); max-width: 320px;
  line-height: 1.6; margin: 14px 0 0;
}
.footer-meta {
  max-width: var(--container);
  margin: 40px auto 0;
  padding: 24px 28px 0;
  border-top: 1px solid var(--border);
  display: flex; justify-content: space-between;
  font-size: 12px;
  color: var(--text-dim);
  font-family: var(--font-mono);
  flex-wrap: wrap;
  gap: 16px;
}

/* ═════════════════════════════════════════════════════════════════════
   PAGE LAYOUT (sub-pages)
   ═════════════════════════════════════════════════════════════════════ */

.page {
  max-width: var(--container);
  margin: 0 auto;
  padding: 56px 28px 96px;
}
.page-hero {
  border-bottom: 1px solid var(--border);
  padding: 64px 0 40px;
  background:
    radial-gradient(70% 60% at 50% -20%, rgba(92, 184, 255, 0.07), transparent 60%);
}
.page-hero .container { max-width: var(--container); }
.page-title {
  font-size: clamp(36px, 4.6vw, 56px);
  font-weight: 600;
  letter-spacing: -0.03em;
  margin: 12px 0 14px;
  line-height: 1.05;
}
.page-lede {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 680px;
  line-height: 1.6;
  margin: 0;
}

/* Two-column page (TOC + content) */
.page-2col {
  max-width: var(--container);
  margin: 0 auto;
  padding: 56px 28px 96px;
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 56px;
}
.toc {
  position: sticky; top: 88px; align-self: start;
  font-family: var(--font-mono); font-size: 12.5px;
}
.toc h6 {
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 11px;
  font-weight: 500;
  margin: 0 0 12px;
}
.toc ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 4px; }
.toc a {
  color: var(--text-muted);
  padding: 5px 12px;
  border-left: 1px solid var(--border);
  display: block;
  line-height: 1.4;
  transition: color 0.12s, border-color 0.12s;
}
.toc a:hover { color: var(--text); border-color: var(--border-2); }
.toc a.active { color: var(--accent); border-color: var(--accent); }

/* Doc article */
.doc h1 { font-size: 44px; font-weight: 600; letter-spacing: -0.03em; margin: 0 0 14px; line-height: 1.05; }
.doc .subtitle { color: var(--text-muted); font-size: 17px; line-height: 1.55; max-width: 640px; margin: 0 0 36px; }
.doc h2 {
  font-size: 26px; font-weight: 600; letter-spacing: -0.02em;
  margin: 56px 0 16px; padding-top: 18px;
  border-top: 1px solid var(--border);
}
.doc h2:first-of-type { border-top: none; padding-top: 0; }
.doc h3 { font-size: 17px; font-weight: 600; margin: 32px 0 12px; letter-spacing: -0.005em; }
.doc p { line-height: 1.7; color: var(--text-muted); margin: 12px 0; max-width: 720px; }
.doc p strong { color: var(--text); font-weight: 600; }
.doc ul, .doc ol { color: var(--text-muted); padding-left: 22px; line-height: 1.7; }
.doc li { margin: 6px 0; max-width: 720px; }
.doc li::marker { color: var(--text-dim); }
.doc code {
  font-family: var(--font-mono); font-size: 12.5px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 4px;
  color: #c8d0db;
}
.doc pre {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: #c8d0db;
  margin: 16px 0;
}
.doc pre code { background: none; border: none; padding: 0; }
.doc pre .com { color: var(--text-dim); font-style: italic; }
.doc pre .kw  { color: var(--warm); }
.doc pre .str { color: var(--good); }
.doc pre .num { color: #c592ff; }
.doc pre .fn  { color: var(--accent); }
.doc table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 13.5px; }
.doc th, .doc td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--border); vertical-align: top; }
.doc th {
  color: var(--text-dim); font-weight: 500;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.04em; text-transform: uppercase;
}
.doc td { color: var(--text-muted); }
.doc td:first-child { color: var(--text); font-family: var(--font-mono); font-size: 12.5px; }
.doc .yes { color: var(--accent); }
.doc .no  { color: var(--text-dim); }

.callout {
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 16px 22px;
  margin: 22px 0;
  border-radius: var(--radius-sm);
  background: var(--panel);
}
.callout.warn { border-left-color: var(--warm); }
.callout.warn .callout-tag { color: var(--warm); }
.callout p { color: var(--text-muted); margin: 0; }
.callout-tag {
  font-family: var(--font-mono); font-size: 11px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}

/* Platform tabs (installation page) */
.platform-tabs {
  display: flex; gap: 4px; margin: 18px 0 0;
  border-bottom: 1px solid var(--border-2);
}
.platform-tab {
  padding: 10px 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.12s, border-color 0.12s;
}
.platform-tab:hover { color: var(--text); }
.platform-tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.platform-pane { display: none; padding-top: 8px; }
.platform-pane.active { display: block; }

/* ─── Catalog (CVs / biases) ─────────────────────────────────────────── */
.catalog-tools {
  max-width: var(--container);
  margin: 0 auto 24px;
  padding: 0 28px;
  display: flex; gap: 12px; align-items: center; flex-wrap: wrap;
}
.search-input {
  flex: 1; min-width: 280px;
  display: flex; align-items: center; gap: 10px;
  background: var(--panel);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  transition: border-color 0.12s;
}
.search-input:focus-within { border-color: var(--accent-line); }
.search-input input {
  flex: 1; background: transparent; border: none; outline: none;
  color: var(--text); font-family: inherit; font-size: 14px;
}
.search-input input::placeholder { color: var(--text-dim); }
.search-input svg { width: 16px; height: 16px; color: var(--text-dim); flex-shrink: 0; }
.search-input .count { font-family: var(--font-mono); font-size: 11px; color: var(--text-dim); white-space: nowrap; }

.fchips { display: flex; gap: 6px; flex-wrap: wrap; }
.fchip {
  padding: 7px 13px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-2);
  background: var(--panel);
  color: var(--text-muted);
  font-size: 12.5px;
  font-family: var(--font-mono);
  transition: all 0.12s;
}
.fchip:hover { color: var(--text); border-color: var(--border-3); }
.fchip.active { background: var(--accent-soft); border-color: var(--accent-line); color: var(--accent); }

.catalog-list {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
  display: grid; gap: 8px;
}
.cat-item {
  display: grid;
  grid-template-columns: 56px 1.4fr 1fr auto;
  column-gap: 20px;
  row-gap: 10px;
  align-items: start;
  padding: 18px 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  transition: border-color 0.12s, background 0.12s;
}
.cat-item:hover { border-color: var(--accent-line); background: var(--panel-hover); }
.cat-num {
  font-family: var(--font-mono);
  font-size: 13px; color: var(--text-dim);
  font-feature-settings: 'tnum';
  padding-top: 2px;
}
.cat-name { display: flex; flex-direction: column; gap: 6px; }
.cat-name h4 {
  margin: 0; font-size: 15.5px; font-weight: 600; letter-spacing: -0.01em;
  display: inline-flex; align-items: center; gap: 8px; flex-wrap: wrap;
}
.cat-name h4 .badge {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 400;
  color: var(--text-dim);
  border: 1px solid var(--border);
  padding: 2px 7px;
  border-radius: 4px;
  letter-spacing: 0.01em;
}
.cat-desc { font-size: 13.5px; color: var(--text-muted); line-height: 1.55; }
.cat-tags { display: flex; flex-wrap: wrap; gap: 6px; align-items: flex-start; }
.cat-tags .t {
  font-family: var(--font-mono); font-size: 10.5px; color: var(--text-muted);
  padding: 2px 8px; border: 1px solid var(--border);
  border-radius: 999px; background: var(--bg-2);
}
.cat-cat {
  font-family: var(--font-mono); font-size: 11px;
  color: var(--accent); align-self: start;
  white-space: nowrap;
  padding-top: 2px;
}
.cat-sig {
  grid-column: 1 / -1;
  font-family: var(--font-mono); font-size: 12px;
  color: #b8c0cc;
  background: var(--bg-2);
  border: 1px solid var(--border);
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  overflow-x: auto;
  white-space: nowrap;
}
.cat-empty {
  text-align: center; padding: 60px 20px; color: var(--text-dim);
  font-family: var(--font-mono);
}

/* ─── Examples page ──────────────────────────────────────────────────── */
.ex-page {
  max-width: var(--container);
  margin: 0 auto;
  padding: 56px 28px 96px;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 56px;
}
.ex-side {
  position: sticky; top: 88px; align-self: start;
  font-family: var(--font-mono); font-size: 13px;
}
.ex-side h6 {
  color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.05em;
  font-size: 11px; font-weight: 500; margin: 0 0 12px;
}
.ex-list { display: grid; gap: 4px; list-style: none; padding: 0; margin: 0; }
.ex-list button {
  width: 100%; text-align: left;
  border: 1px solid transparent; border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--text-muted); font-family: inherit; font-size: 12.5px;
  line-height: 1.4; display: flex; flex-direction: column; gap: 3px;
  transition: all 0.12s;
}
.ex-list button:hover { color: var(--text); border-color: var(--border); background: var(--panel); }
.ex-list button.active {
  color: var(--text); border-color: var(--accent-line);
  background: var(--accent-soft);
}
.ex-list .ex-num { font-size: 10.5px; color: var(--text-dim); letter-spacing: 0.04em; }
.ex-list button.active .ex-num { color: var(--accent); }
.ex-main h1 { font-size: 40px; font-weight: 600; letter-spacing: -0.03em; margin: 0 0 12px; line-height: 1.1; }
.ex-main .sub { color: var(--text-muted); font-size: 16px; line-height: 1.6; max-width: 640px; margin: 0 0 22px; }
.ex-main h2 { font-size: 22px; font-weight: 600; letter-spacing: -0.015em; margin: 0 0 6px; }
.ex-main .ex-meta { display: flex; gap: 8px; flex-wrap: wrap; margin: 0 0 18px; }
.ex-main p { color: var(--text-muted); line-height: 1.65; max-width: 720px; margin: 14px 0; }
.ex-main p code {
  font-family: var(--font-mono); font-size: 12.5px;
  background: var(--bg-2); border: 1px solid var(--border);
  padding: 1px 6px; border-radius: 4px; color: #c8d0db;
}
.codeblock {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; margin: 16px 0; font-family: var(--font-mono); font-size: 12.5px;
}
.codeblock-bar {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 16px; border-bottom: 1px solid var(--border);
  background: var(--panel-2); color: var(--text-muted); font-size: 11.5px;
}
.codeblock-bar .file { color: var(--text); }
.codeblock-bar .lang { color: var(--text-dim); font-size: 10.5px; }
.codeblock-bar .copy-btn {
  margin-left: auto; border: 1px solid var(--border-2);
  color: var(--text-muted); font-family: inherit; font-size: 10.5px;
  padding: 4px 11px; border-radius: 4px; transition: color 0.12s, border-color 0.12s;
}
.codeblock-bar .copy-btn:hover { color: var(--text); border-color: var(--border-3); }
.codeblock-bar .copy-btn.ok { color: var(--good); border-color: rgba(108,212,168,0.3); }
.codeblock pre { margin: 0; padding: 18px 22px; overflow-x: auto; line-height: 1.7; color: #c8d0db; white-space: pre; }
.codeblock pre .com { color: var(--text-dim); font-style: italic; }
.codeblock pre .kw  { color: var(--warm); }
.codeblock pre .str { color: var(--good); }
.codeblock pre .num { color: #c592ff; }
.codeblock pre .fn  { color: var(--accent); }

/* ─── Benchmarks page ────────────────────────────────────────────────── */
.bench-section { padding: 40px 0; border-top: 1px solid var(--border); }
.bench-section:first-of-type { border-top: none; padding-top: 8px; }
.bench-section h2 { font-size: 24px; font-weight: 600; letter-spacing: -0.015em; margin: 0 0 8px; }
.bench-section .sub { color: var(--text-muted); line-height: 1.6; max-width: 720px; margin: 0 0 24px; }
.placeholder-pill {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono); font-size: 11px;
  padding: 4px 12px; border-radius: 999px;
  background: var(--warm-soft);
  border: 1px solid var(--warm-line);
  color: var(--warm);
  margin: 0 0 18px;
}
.pcie-math {
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 20px;
}
.pcie-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px 28px;
  background: var(--panel);
}
.pcie-card h3 {
  font-family: var(--font-mono);
  font-size: 12.5px; font-weight: 500; letter-spacing: 0.02em;
  color: var(--text-muted); margin: 0 0 18px; text-transform: uppercase;
}
.pcie-card .calc { font-family: var(--font-mono); font-size: 13.5px; line-height: 2; color: var(--text); }
.pcie-card .calc .var { color: var(--accent); }
.pcie-card .calc .res { color: var(--warm); }
.pcie-card .calc .lbl { color: var(--text-dim); display: inline-block; min-width: 200px; }
.pcie-card .calc .op  { color: var(--text-dim); margin: 0 6px; }
.pcie-card .calc .v-good { color: var(--good); }
.pcie-card .row {
  border-top: 1px dashed var(--border);
  padding-top: 14px; margin-top: 16px;
  color: var(--text-muted); font-size: 13px; line-height: 1.6;
  font-family: var(--font-sans);
}
.bench-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono); font-size: 13px;
  margin: 14px 0 24px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.bench-table th, .bench-table td {
  padding: 14px 18px; text-align: left;
  border-bottom: 1px solid var(--border);
}
.bench-table tr:last-child td { border-bottom: none; }
.bench-table th {
  color: var(--text-dim); font-weight: 500;
  font-size: 11px; letter-spacing: 0.04em;
  text-transform: uppercase; background: var(--panel-2);
}
.bench-table td { color: var(--text-muted); }
.bench-table td:first-child {
  color: var(--text); font-weight: 500;
  font-family: var(--font-sans); font-size: 14px;
  letter-spacing: -0.005em;
}
.bench-table .v-good { color: var(--accent); }
.bench-table .v-pend { color: var(--text-dim); font-style: italic; }
.bench-table .speedup { font-weight: 600; font-feature-settings: 'tnum'; color: var(--accent); }
.bench-table .speedup.pend { color: var(--text-dim); font-weight: 400; }
.meta-row {
  display: flex; flex-wrap: wrap; gap: 16px;
  font-family: var(--font-mono); font-size: 11.5px;
  color: var(--text-dim);
  margin-top: 12px;
  padding: 10px 14px;
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
}
.meta-row strong { color: var(--text); font-weight: 500; }
.speedup-chart {
  display: grid; gap: 12px;
  margin-top: 18px;
  padding: 22px 24px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.sp-row { display: grid; grid-template-columns: 240px 1fr 80px; align-items: center; gap: 16px; }
.sp-label { font-family: var(--font-mono); font-size: 12px; color: var(--text-muted); line-height: 1.4; }
.sp-label small { color: var(--text-dim); display: block; font-size: 10.5px; margin-top: 2px; }
.sp-bar { position: relative; height: 22px; background: var(--bg-2); border-radius: 4px; overflow: hidden; border: 1px solid var(--border); }
.sp-bar i { position: absolute; left: 0; top: 0; bottom: 0; background: linear-gradient(90deg, var(--accent), #b39bff); border-radius: 3px; }
.sp-bar i.pending { background: var(--border-2); }
.sp-val { font-family: var(--font-mono); font-size: 14px; font-weight: 600; color: var(--accent); text-align: right; font-feature-settings: 'tnum'; }
.sp-val.pending { color: var(--text-dim); font-weight: 400; }
.sp-baseline { font-family: var(--font-mono); font-size: 11px; color: var(--text-dim); margin-top: 8px; padding-top: 12px; border-top: 1px dashed var(--border); }
.meth { border: 1px solid var(--border); border-radius: var(--radius); background: var(--panel); padding: 24px 28px; }
.meth h3 { font-size: 14px; font-family: var(--font-mono); font-weight: 500; margin: 0 0 12px; color: var(--text); letter-spacing: 0.02em; text-transform: uppercase; }
.meth ul { margin: 6px 0; padding-left: 18px; color: var(--text-muted); font-size: 13.5px; line-height: 1.7; }
.meth ul li::marker { color: var(--accent); }

/* ─── License page ───────────────────────────────────────────────────── */
.lic-page { max-width: 960px; margin: 0 auto; padding: 56px 28px 96px; }
.lic-page h1 { font-size: clamp(36px,4.5vw,52px); font-weight: 600; letter-spacing: -0.03em; margin: 0 0 14px; }
.lic-page .lede { color: var(--text-muted); font-size: 17px; line-height: 1.6; max-width: 720px; margin: 0 0 14px; }
.lic-stamp {
  display: inline-flex; align-items: center; gap: 8px;
  margin: 8px 0 28px;
  font-family: var(--font-mono); font-size: 12px;
  padding: 5px 12px; border-radius: 999px;
  background: var(--accent-soft); border: 1px solid var(--accent-line);
  color: var(--accent);
}
.lic-section { padding: 32px 0; border-top: 1px solid var(--border); }
.lic-section:first-of-type { border-top: none; padding-top: 8px; }
.lic-section h2 { font-size: 22px; font-weight: 600; letter-spacing: -0.015em; margin: 0 0 12px; }
.lic-section p { color: var(--text-muted); line-height: 1.65; margin: 10px 0; }
.lic-section ul { color: var(--text-muted); line-height: 1.7; padding-left: 22px; }

.use-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 22px 0 8px; }
.use-card { border: 1px solid var(--border); border-radius: var(--radius); padding: 22px 24px; background: var(--panel); }
.use-card.ok { border-color: rgba(108, 212, 168, 0.25); }
.use-card.no { border-color: rgba(255, 155, 94, 0.25); }
.use-card .head { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.use-card .ico {
  width: 28px; height: 28px; border-radius: 8px;
  display: grid; place-items: center;
  flex-shrink: 0;
}
.use-card .ico svg { width: 16px; height: 16px; }
.use-card.ok .ico { background: rgba(108, 212, 168, 0.14); color: var(--good); }
.use-card.no .ico { background: rgba(255, 155, 94, 0.14); color: var(--warm); }
.use-card h3 { font-size: 14px; font-family: var(--font-mono); font-weight: 500; margin: 0; color: var(--text); }
.use-card ul {
  list-style: none; padding: 0; margin: 6px 0 0;
  display: grid; gap: 6px; font-size: 13.5px; color: var(--text-muted); line-height: 1.5;
}
.use-card ul li::before { content: '— '; color: var(--text-dim); }

.use-card .head { padding-bottom: 14px; margin-bottom: 14px; border-bottom: 1px solid var(--border); }
.use-card .head h3 { font-size: 15px; font-family: var(--font-sans); letter-spacing: -0.01em; }
.use-card .rows { display: grid; gap: 14px; }
.use-card .row {
  display: grid; grid-template-columns: 1fr; gap: 2px;
  padding-left: 22px; position: relative;
}
.use-card .row::before {
  content: ''; position: absolute; left: 0; top: 9px;
  width: 12px; height: 1px;
}
.use-card.ok .row::before { background: var(--good); }
.use-card.no .row::before { background: var(--warm); }
.use-card .row strong {
  color: var(--text); font-size: 14px; font-weight: 600;
  letter-spacing: -0.005em;
}
.use-card .row span {
  color: var(--text-muted); font-size: 12.5px; line-height: 1.45;
}

details.lic-fold {
  margin-top: 18px;
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  padding: 0;
  background: var(--panel);
  overflow: hidden;
}
details.lic-fold[open] { border-color: var(--accent-line); }
details.lic-fold summary {
  cursor: pointer;
  padding: 16px 22px;
  font-family: var(--font-mono); font-size: 13px; color: var(--text);
  list-style: none;
  display: flex; align-items: center; gap: 10px;
}
details.lic-fold summary::-webkit-details-marker { display: none; }
details.lic-fold summary::before {
  content: '+'; color: var(--accent); font-weight: 600;
}
details.lic-fold[open] summary::before { content: '−'; }
details.lic-fold .body {
  padding: 0 22px 20px;
  border-top: 1px solid var(--border);
  margin-top: 4px;
}
details.lic-fold .body pre {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  margin: 16px 0 0;
  font-family: var(--font-mono); font-size: 12px; line-height: 1.7;
  color: var(--text-muted);
  white-space: pre-wrap;
  overflow-x: auto;
  max-height: 460px;
}
.cite-block {
  margin-top: 14px;
  padding: 14px 18px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono); font-size: 12.5px;
  color: var(--text-muted); line-height: 1.7;
  white-space: pre-wrap;
}

/* ─── 404 ────────────────────────────────────────────────────────────── */
.not-found {
  max-width: 640px; margin: 0 auto;
  padding: 120px 28px;
  text-align: center;
}
.not-found .num {
  font-family: var(--font-mono);
  font-size: 96px; line-height: 1;
  color: var(--accent);
  margin-bottom: 14px;
  letter-spacing: -0.03em;
  font-weight: 600;
}
.not-found h1 { font-size: 28px; font-weight: 600; letter-spacing: -0.02em; margin: 0 0 12px; }
.not-found p { color: var(--text-muted); margin: 0 0 28px; line-height: 1.6; }

/* ═════════════════════════════════════════════════════════════════════
   RESPONSIVE
   ═════════════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; gap: 40px; padding-top: 56px; padding-bottom: 64px; }
  .arch-card { grid-template-columns: 1fr; gap: 24px; }
  .split { grid-template-columns: 1fr; gap: 32px; }
  .strip { grid-template-columns: 1fr; }
  .cta-card { grid-template-columns: 1fr; padding: 36px 32px; gap: 20px; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
  .pcie-math { grid-template-columns: 1fr; }
  .page-2col { grid-template-columns: 1fr; gap: 32px; }
  .toc { position: static; }
  .ex-page { grid-template-columns: 1fr; gap: 32px; }
  .ex-side { position: static; }
  .sp-row { grid-template-columns: 1fr; gap: 6px; }
  .sp-val { text-align: left; }
}
@media (max-width: 760px) {
  .hero h1 { font-size: 38px; }
  .doc h1, .ex-main h1 { font-size: 32px; }
  .nav { display: none; }
  .menu-toggle { display: inline-flex; }
  .header.is-open .nav {
    display: flex; flex-direction: column;
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 12px 20px 18px;
    gap: 4px;
  }
  .header.is-open .nav a { padding: 10px 12px; font-size: 14px; }
  .brand-tag { display: none; }
  .cat-item { grid-template-columns: 36px 1fr; }
  .cat-cat, .cat-tags { grid-column: 2; }
  .use-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .footer-meta { flex-direction: column; gap: 6px; }
  .section { padding: 64px 0; }
  .pcie-card { padding: 22px 18px; }
  .pcie-card .calc .lbl { min-width: 0; display: block; }
  .meta-row { flex-direction: column; gap: 6px; }
}