/* ============================================================
   BabelWrap Landing Page Styles
   ============================================================ */

/* ---- Reset & tokens ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Shared with dashboard */
  --bg: #f8f9fb;
  --surface: #ffffff;
  --border: #e2e5ea;
  --text: #1a1d23;
  --text-muted: #5b6370;
  --text-dim: #9ca3af;
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-light: #eef2ff;
  --success: #059669;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 6px rgba(0,0,0,.05), 0 2px 4px rgba(0,0,0,.03);
  --shadow-lg: 0 10px 25px rgba(0,0,0,.08), 0 4px 10px rgba(0,0,0,.04);
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --mono: 'SF Mono', 'Cascadia Code', 'Fira Code', Consolas, monospace;

  /* Landing-specific */
  --max-w: 1200px;
  --max-w-narrow: 800px;
  --section-gap: 6rem;
  --code-bg: #0f172a;
  --code-surface: #1e293b;
  --gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 400ms ease-out;
  --transition-reveal: 600ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);

  /* Focus */
  --focus-ring: 0 0 0 3px rgba(99, 102, 241, 0.3);
}

html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.65; font-size: 16px; -webkit-font-smoothing: antialiased; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }
img { max-width: 100%; display: block; }

/* ---- Focus styles ---- */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
:focus:not(:focus-visible) { outline: none; }

.btn-lg:focus-visible,
.price-btn:focus-visible,
.nav-cta:focus-visible {
  box-shadow: var(--focus-ring);
  outline: none;
}
.cta-section :focus-visible,
.code-block :focus-visible {
  outline-color: #818cf8;
}

/* ---- Skip link ---- */
.skip-link {
  position: absolute; top: -100%; left: 1rem;
  background: var(--primary); color: #fff;
  padding: .5rem 1rem; border-radius: var(--radius);
  font-weight: 600; font-size: .9rem; z-index: 200;
  transition: top var(--transition-fast);
}
.skip-link:focus { top: 1rem; color: #fff; }

/* ---- Layout helpers ---- */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 1.5rem; }
.container-narrow { max-width: var(--max-w-narrow); margin: 0 auto; padding: 0 1.5rem; }

/* ============================================================
   Navbar
   ============================================================ */
.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(248,249,251,.85);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-base), background var(--transition-base);
}
.site-nav.scrolled { border-bottom-color: var(--border); background: rgba(255,255,255,.95); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; max-width: var(--max-w); margin: 0 auto; padding: .85rem 1.5rem; }
.nav-brand { display: flex; align-items: center; gap: .5rem; font-weight: 700; font-size: 1.15rem; color: var(--primary); text-decoration: none; }
.nav-brand svg { width: 26px; height: 26px; }
.nav-links { display: flex; align-items: center; gap: 2rem; list-style: none; }
.nav-links a { color: var(--text-muted); font-size: .92rem; font-weight: 500; transition: color var(--transition-fast); }
.nav-links a:hover { color: var(--text); }
.nav-cta { background: var(--primary); color: #fff !important; padding: .5rem 1.15rem; border-radius: var(--radius); font-weight: 600; font-size: .88rem; transition: background var(--transition-fast); }
.nav-cta:hover { background: var(--primary-hover); color: #fff !important; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: .25rem; color: var(--text); }

/* ============================================================
   Hero
   ============================================================ */
.hero { padding: 10rem 0 5rem; text-align: center; background: linear-gradient(180deg, var(--primary-light) 0%, var(--bg) 100%); }
.hero h1 { font-size: 3.5rem; font-weight: 800; line-height: 1.15; letter-spacing: -.03em; margin-bottom: 1.25rem; animation: hero-fade-in 800ms var(--ease-out-expo) both; }
.hero h1 .gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero .subtitle { font-size: 1.2rem; color: var(--text-muted); max-width: 640px; margin: 0 auto 1rem; line-height: 1.7; animation: hero-fade-in 800ms var(--ease-out-expo) 100ms both; }
.hero .subtitle-secondary { font-size: 1rem; color: var(--text-dim); max-width: 580px; margin: 0 auto 2rem; line-height: 1.6; animation: hero-fade-in 800ms var(--ease-out-expo) 150ms both; }
.hero-ctas { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; margin-bottom: 1.5rem; animation: hero-fade-in 800ms var(--ease-out-expo) 200ms both; }
.btn-lg { padding: .75rem 1.75rem; border-radius: var(--radius); font-weight: 600; font-size: 1rem; border: none; cursor: pointer; transition: all var(--transition-fast); text-decoration: none; display: inline-flex; align-items: center; gap: .5rem; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); color: #fff; }
.btn-secondary { background: var(--surface); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--bg); border-color: var(--text-dim); }

/* Hero badges */
.hero-badges { display: flex; gap: .75rem; justify-content: center; flex-wrap: wrap; margin-bottom: 3rem; animation: hero-fade-in 800ms var(--ease-out-expo) 250ms both; }
.hero-badge { font-size: .82rem; color: var(--text-dim); font-weight: 500; display: flex; align-items: center; gap: .35rem; }
.hero-badge::before { content: ""; display: inline-block; width: 5px; height: 5px; border-radius: 50%; background: var(--text-dim); }
.hero-badges .hero-badge:first-child::before { display: none; }

.hero-code { max-width: 720px; margin: 0 auto; text-align: left; animation: hero-fade-in 800ms var(--ease-out-expo) 350ms both; }

@keyframes hero-fade-in {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   Sections
   ============================================================ */
section { padding: var(--section-gap) 0; }
section:nth-child(even) { background: var(--surface); }
.section-header { text-align: center; margin-bottom: 3rem; }
.section-header h2 { font-size: 2rem; font-weight: 700; letter-spacing: -.02em; margin-bottom: .75rem; }
.section-header p { color: var(--text-muted); font-size: 1.1rem; max-width: 600px; margin: 0 auto; }
.section-label { display: inline-block; font-size: .8rem; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; color: var(--primary); margin-bottom: .75rem; }

/* ============================================================
   Scroll reveal
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--transition-reveal), transform var(--transition-reveal);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-stagger > .reveal:nth-child(1) { transition-delay: 0ms; }
.reveal-stagger > .reveal:nth-child(2) { transition-delay: 80ms; }
.reveal-stagger > .reveal:nth-child(3) { transition-delay: 160ms; }
.reveal-stagger > .reveal:nth-child(4) { transition-delay: 240ms; }
.reveal-stagger > .reveal:nth-child(5) { transition-delay: 320ms; }
.reveal-stagger > .reveal:nth-child(6) { transition-delay: 400ms; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero h1, .hero .subtitle, .hero .subtitle-secondary,
  .hero-ctas, .hero-badges, .hero-code { animation: none; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================================
   "Who Is This For" / audience cards
   ============================================================ */
.audience-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.audience-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 2rem; text-align: left; position: relative;
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
}
.audience-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); border-color: var(--primary); }
.audience-card .audience-icon {
  width: 44px; height: 44px; border-radius: var(--radius);
  background: var(--primary-light); color: var(--primary);
  display: flex; align-items: center; justify-content: center; margin-bottom: 1rem;
}
.audience-card .audience-icon svg { width: 22px; height: 22px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.audience-card h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: .5rem; }
.audience-card p { color: var(--text-muted); font-size: .92rem; line-height: 1.6; }

/* ============================================================
   Before / After
   ============================================================ */
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: start; }
.compare-card { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md); }
.compare-card .card-label { padding: .75rem 1.25rem; font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
.compare-card.before .card-label { background: #fef2f2; color: #b91c1c; }
.compare-card.after .card-label { background: #ecfdf5; color: #065f46; }

/* ============================================================
   Steps
   ============================================================ */
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.step-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 2rem; text-align: center; position: relative;
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
}
.step-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); border-color: var(--primary); }
.step-num { width: 48px; height: 48px; border-radius: 50%; background: var(--primary-light); color: var(--primary); font-weight: 700; font-size: 1.2rem; display: flex; align-items: center; justify-content: center; margin: 0 auto 1rem; }
.step-card h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: .5rem; }
.step-card p { color: var(--text-muted); font-size: .92rem; }

/* ============================================================
   Snapshot showcase
   ============================================================ */
.snapshot-showcase { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }
.snapshot-text h3 { font-size: 1.3rem; font-weight: 600; margin-bottom: 1rem; }
.snapshot-text p { color: var(--text-muted); margin-bottom: 1rem; line-height: 1.7; }
.snapshot-text ul { list-style: none; }
.snapshot-text li { padding: .4rem 0; color: var(--text-muted); font-size: .95rem; }
.snapshot-text li::before { content: ""; display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--primary); margin-right: .75rem; vertical-align: middle; }

/* ============================================================
   Action cards grid — grouped by category
   ============================================================ */
.action-groups { display: flex; flex-direction: column; gap: 2.5rem; }
.action-group-label {
  font-size: .78rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: .06em; color: var(--text-dim); margin-bottom: .75rem; padding-left: .25rem;
}
.action-group-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.25rem; }

.action-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: box-shadow var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
}
.action-card:hover { box-shadow: var(--shadow-md); border-color: var(--primary); transform: translateY(-2px); }
.action-card .action-icon {
  width: 40px; height: 40px; border-radius: var(--radius);
  background: var(--primary-light); color: var(--primary);
  display: flex; align-items: center; justify-content: center; margin-bottom: .75rem;
}
.action-card .action-icon svg { width: 20px; height: 20px; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; fill: none; }
.action-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: .35rem; }
.action-card p { font-size: .88rem; color: var(--text-muted); margin-bottom: .5rem; }
.action-card code { font-family: var(--mono); font-size: .78rem; background: var(--bg); padding: .2rem .5rem; border-radius: 4px; color: var(--primary); }
.action-card.featured { border-color: var(--primary); background: var(--primary-light); }

/* ============================================================
   MCP section
   ============================================================ */
.mcp-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }
.mcp-info h3 { font-size: 1.3rem; font-weight: 600; margin-bottom: 1rem; }
.mcp-info p { color: var(--text-muted); margin-bottom: 1rem; }
.mcp-badges { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: 1rem; }
.mcp-badge {
  background: var(--primary-light); color: var(--primary);
  padding: .3rem .75rem; border-radius: 999px;
  font-size: .8rem; font-weight: 600;
  transition: background var(--transition-fast), transform var(--transition-fast);
  cursor: default;
}
.mcp-badge:hover { background: #ddd6fe; transform: translateY(-1px); }

/* ============================================================
   Use cases grid
   ============================================================ */
.usecase-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.usecase-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: box-shadow var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
}
.usecase-card:hover { box-shadow: var(--shadow-md); border-color: var(--primary); transform: translateY(-2px); }
.usecase-card .usecase-icon {
  width: 40px; height: 40px; border-radius: var(--radius);
  background: var(--primary-light); color: var(--primary);
  display: flex; align-items: center; justify-content: center; margin-bottom: .75rem;
}
.usecase-card .usecase-icon svg { width: 20px; height: 20px; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; fill: none; }
.usecase-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: .35rem; }
.usecase-card p { font-size: .88rem; color: var(--text-muted); margin-bottom: .25rem; }
.usecase-card .usecase-meta { font-size: .78rem; color: var(--text-dim); font-weight: 500; }

/* ============================================================
   Architecture (docs page)
   ============================================================ */
.arch-flow { display: flex; flex-direction: column; align-items: center; gap: 0; padding: 3rem 2rem; background: var(--code-bg); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.arch-node {
  background: var(--code-surface); border: 1px solid #334155; border-left: 3px solid #818cf8;
  border-radius: var(--radius); padding: .75rem 1.5rem;
  color: #818cf8; font-weight: 600; font-family: var(--mono); font-size: .85rem;
  text-align: center; position: relative;
}
.arch-node-sub { color: #64748b; font-weight: 400; font-size: .78rem; display: block; }
.arch-connector { width: 2px; height: 1.5rem; background: #334155; }
.arch-row { display: flex; gap: 2rem; align-items: center; }
.arch-row-connector { width: 2rem; height: 2px; background: #334155; }
.arch-fork { width: 220px; height: 1.5rem; border-left: 2px solid #334155; border-right: 2px solid #334155; border-top: 2px solid #334155; position: relative; }
.arch-fork::before { content: ''; position: absolute; left: 50%; top: 0; width: 2px; height: 1rem; background: #334155; transform: translateX(-50%) translateY(-100%); }
.arch-merge { width: 220px; height: 1.5rem; border-left: 2px solid #334155; border-right: 2px solid #334155; border-bottom: 2px solid #334155; position: relative; }
.arch-merge::after { content: ''; position: absolute; left: 50%; bottom: 0; width: 2px; height: 1rem; background: #334155; transform: translateX(-50%) translateY(100%); }
.arch-components { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-top: 2rem; }
.arch-component strong { display: block; margin-bottom: .25rem; }
.arch-component span { color: var(--text-muted); font-size: .9rem; }

/* ============================================================
   Code blocks & tabs
   ============================================================ */
.code-block { position: relative; background: var(--code-bg); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md); max-width: 100%; }
.code-block pre { padding: 1.25rem 1.5rem; overflow-x: auto; margin: 0; }
.code-block code { font-family: var(--mono); font-size: .85rem; line-height: 1.7; color: #e2e8f0; display: block; }
.copy-btn {
  position: absolute; top: .75rem; right: .75rem;
  background: var(--code-surface); border: 1px solid #334155; color: #94a3b8;
  padding: .3rem .7rem; border-radius: 6px; font-size: .75rem; font-family: var(--font);
  cursor: pointer; transition: all var(--transition-fast); z-index: 2;
  display: inline-flex; align-items: center; gap: .35rem;
}
.copy-btn:hover { background: #334155; color: #e2e8f0; }
.copy-btn.copied { background: #065f46; border-color: #059669; color: #a7f3d0; }
.copy-btn .copy-check { display: none; }
.copy-btn.copied .copy-label { display: none; }
.copy-btn.copied .copy-check { display: inline-flex; }

.code-tabs .tab-bar { display: flex; background: var(--code-surface); border-bottom: 1px solid #334155; }
.tab-btn {
  background: none; border: none;
  padding: .6rem 1.25rem; color: #94a3b8; font-size: .82rem; font-weight: 500;
  font-family: var(--font); cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
}
.tab-btn:hover { color: #e2e8f0; }
.tab-btn.active { color: #818cf8; border-bottom-color: #818cf8; background: rgba(129, 140, 248, 0.08); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* Syntax highlighting */
.kw { color: #c084fc; }
.fn { color: #818cf8; }
.str { color: #86efac; }
.cm { color: #64748b; }
.num { color: #fbbf24; }
.op { color: #94a3b8; }
.key { color: #7dd3fc; }
.bool { color: #fbbf24; }

/* ============================================================
   Pricing
   ============================================================ */
.pricing-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; max-width: 700px; margin: 0 auto; }
.price-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 2rem; text-align: center;
  transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
}
.price-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); border-color: var(--primary); }
.price-card.popular { border-color: var(--primary); position: relative; }
.price-card.popular::before { content: "Most Popular"; position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--primary); color: #fff; font-size: .72rem; font-weight: 700; padding: .2rem .75rem; border-radius: 999px; text-transform: uppercase; letter-spacing: .05em; }
.price-tier { font-size: .85rem; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; color: var(--text-muted); margin-bottom: .5rem; }
.price-amount { font-size: 2.5rem; font-weight: 800; margin-bottom: .25rem; }
.price-amount span { font-size: .9rem; font-weight: 500; color: var(--text-muted); }
.price-desc { color: var(--text-muted); font-size: .88rem; margin-bottom: 1.5rem; }
.price-features { list-style: none; text-align: left; margin-bottom: 1.5rem; }
.price-features li { padding: .4rem 0; font-size: .9rem; color: var(--text-muted); }
.price-features li::before { content: "\2713"; color: var(--success); font-weight: 700; margin-right: .5rem; }
.price-btn { display: block; width: 100%; padding: .65rem; border-radius: var(--radius); font-weight: 600; font-size: .9rem; border: none; cursor: pointer; transition: all var(--transition-fast); text-align: center; text-decoration: none; }
.price-btn-primary { background: var(--primary); color: #fff; }
.price-btn-primary:hover { background: var(--primary-hover); color: #fff; }
.price-btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border); }
.price-btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.pricing-note { text-align: center; margin-top: 2rem; color: var(--text-muted); font-size: .9rem; }
.price-addon { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 2rem; max-width: 48rem; margin-left: auto; margin-right: auto; }
.price-addon-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: start; }
.price-addon .price-tier { margin-bottom: .25rem; }
.price-addon .price-amount { font-size: 2rem; }
.price-addon .price-features { margin-bottom: 0; }
@media (max-width: 640px) { .price-addon-inner { grid-template-columns: 1fr; } }

/* ============================================================
   Comparison table
   ============================================================ */
.compare-table { width: 100%; border-collapse: collapse; background: var(--surface); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); }
.compare-table th { text-align: left; padding: .85rem 1rem; font-size: .78rem; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; color: var(--text-muted); background: var(--bg); border-bottom: 2px solid var(--border); }
.compare-table td { padding: .85rem 1rem; border-bottom: 1px solid var(--border); font-size: .9rem; vertical-align: top; }
.compare-table tr:last-child td { border-bottom: none; }
.compare-table td:first-child { font-weight: 600; color: var(--text); }
.compare-table .dim { color: var(--text-dim); }
.compare-table .hl { color: var(--primary); font-weight: 600; }
.compare-table tbody tr { transition: background var(--transition-fast); }
.compare-table tbody tr:hover { background: var(--primary-light); }

/* ============================================================
   CTA section
   ============================================================ */
.cta-section { background: var(--code-bg); color: #e2e8f0; padding: 5rem 0; text-align: center; }
.cta-section h2 { font-size: 2rem; font-weight: 700; margin-bottom: .75rem; color: #f8fafc; }
.cta-section p { color: #94a3b8; font-size: 1.05rem; margin-bottom: 2rem; max-width: 500px; margin-left: auto; margin-right: auto; }
.cta-section .code-block { max-width: 600px; margin: 0 auto 2rem; text-align: left; }
.cta-btn-alt { background: #818cf8; }
.cta-btn-alt:hover { background: #6366f1; }

/* ============================================================
   Link arrow (used inline)
   ============================================================ */
.link-arrow { font-weight: 600; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer { background: var(--surface); border-top: 1px solid var(--border); padding: 3rem 0 2rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2rem; margin-bottom: 2rem; }
.footer-brand { font-weight: 700; font-size: 1.1rem; color: var(--primary); margin-bottom: .75rem; }
.footer-tagline { color: var(--text-muted); font-size: .88rem; }
.footer-col h4 { font-size: .78rem; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--text-muted); margin-bottom: .75rem; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: .4rem; }
.footer-col a { color: var(--text-muted); font-size: .88rem; transition: color var(--transition-fast); }
.footer-col a:hover { color: var(--primary); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 1.5rem; display: flex; justify-content: space-between; align-items: center; font-size: .82rem; color: var(--text-dim); }

/* ============================================================
   Doc pages
   ============================================================ */
.doc-layout { padding-top: 6rem; }

/* ---- Sidebar layout for long reference pages ---- */
.doc-with-sidebar {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}
.doc-sidebar {
  position: sticky;
  top: 5rem;
  align-self: start;
  max-height: calc(100vh - 6rem);
  overflow-y: auto;
  padding: 2rem 0 2rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.doc-sidebar::-webkit-scrollbar { width: 4px; }
.doc-sidebar::-webkit-scrollbar-track { background: transparent; }
.doc-sidebar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

.doc-sidebar-nav { display: flex; flex-direction: column; gap: .25rem; }
.doc-sidebar-section { margin-bottom: .75rem; }
.doc-sidebar-heading {
  font-size: .72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .06em; color: var(--text-muted);
  padding: .5rem .75rem .25rem; margin-top: .25rem;
}
.doc-sidebar-link {
  display: flex; align-items: center; gap: .4rem;
  font-size: .84rem; color: var(--text-muted); font-weight: 500;
  padding: .3rem .75rem; border-radius: var(--radius);
  text-decoration: none; transition: all var(--transition-fast);
  border-left: 2px solid transparent; line-height: 1.3;
}
.doc-sidebar-link:hover { color: var(--text); background: var(--bg); }
.doc-sidebar-link.active {
  color: var(--primary); background: var(--primary-light);
  border-left-color: var(--primary); font-weight: 600;
}
.doc-sidebar-link .method { font-size: .6rem; padding: .1rem .35rem; flex-shrink: 0; }

.doc-main { min-width: 0; /* prevent overflow */ }
.doc-header { padding: 2rem 0 1.5rem; border-bottom: 1px solid var(--border); margin-bottom: 2rem; }
.doc-header h1 { font-size: 2rem; font-weight: 700; margin-bottom: .5rem; }
.doc-header p { color: var(--text-muted); font-size: 1.05rem; }
.doc-content { padding-bottom: 4rem; }
.doc-content h2 { font-size: 1.4rem; font-weight: 700; margin: 2.5rem 0 1rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.doc-content h2:first-child { border-top: none; padding-top: 0; margin-top: 0; }
.doc-content h3 { font-size: 1.1rem; font-weight: 600; margin: 1.5rem 0 .75rem; }
.doc-content p { margin-bottom: 1rem; color: var(--text); line-height: 1.7; }
.doc-content ul, .doc-content ol { margin-bottom: 1rem; padding-left: 1.5rem; }
.doc-content li { margin-bottom: .4rem; line-height: 1.65; }
.doc-content code { font-family: var(--mono); font-size: .85em; background: var(--primary-light); padding: .15rem .4rem; border-radius: 4px; color: var(--primary-hover); }
.doc-content pre code { background: none; padding: 0; color: #e2e8f0; border-radius: 0; }
.doc-content .code-block { margin: 1.25rem 0; }
.doc-content table { width: 100%; border-collapse: collapse; margin: 1rem 0; background: var(--surface); border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); }
.doc-content th { text-align: left; padding: .6rem .75rem; font-size: .78rem; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; color: var(--text-muted); background: var(--bg); border-bottom: 2px solid var(--border); }
.doc-content td { padding: .6rem .75rem; border-bottom: 1px solid var(--border); font-size: .9rem; }
.doc-content tr:last-child td { border-bottom: none; }

/* Endpoint badge */
.endpoint { display: inline-flex; align-items: center; gap: .5rem; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: .4rem .75rem; margin: .75rem 0; font-family: var(--mono); font-size: .88rem; }
.method { font-weight: 700; font-size: .75rem; padding: .15rem .5rem; border-radius: 4px; text-transform: uppercase; }
.method-post { background: #dbeafe; color: #1d4ed8; }
.method-get { background: #d1fae5; color: #065f46; }
.method-delete { background: #fef2f2; color: #b91c1c; }

/* Doc cards grid */
.doc-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.25rem; margin: 1.5rem 0; }
.doc-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 1.5rem; text-decoration: none; color: var(--text); display: block;
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}
.doc-card:hover { box-shadow: var(--shadow-md); border-color: var(--primary); }
.doc-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: .35rem; color: var(--text); }
.doc-card p { font-size: .88rem; color: var(--text-muted); margin: 0; }

/* Note/tip boxes */
.note, .tip, .warning { padding: 1rem 1.25rem; border-radius: var(--radius); margin: 1rem 0; font-size: .9rem; }
.note { background: #eef2ff; border-left: 3px solid var(--primary); color: #3730a3; }
.tip { background: #ecfdf5; border-left: 3px solid var(--success); color: #065f46; }
.warning { background: #fffbeb; border-left: 3px solid #d97706; color: #92400e; }

/* FAQ accordion */
.faq-list { max-width: 720px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-q {
  padding: 1rem 0; font-weight: 600; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center; font-size: .95rem;
  background: none; border: none; width: 100%; text-align: left;
  font-family: var(--font); color: var(--text);
}
.faq-q::after { content: "+"; font-size: 1.2rem; color: var(--text-muted); transition: transform var(--transition-base); }
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease, padding .3s ease; }
.faq-item.open .faq-a { max-height: 300px; padding-bottom: 1rem; }
.faq-a p { color: var(--text-muted); font-size: .9rem; }

/* Badge */
.badge { display: inline-block; padding: .2rem .6rem; border-radius: 999px; font-size: .72rem; font-weight: 600; text-transform: uppercase; letter-spacing: .03em; }
.badge-beginner { background: #d1fae5; color: #065f46; }
.badge-intermediate { background: #dbeafe; color: #1d4ed8; }
.badge-advanced { background: #fef3c7; color: #92400e; }

/* Pricing page extras */
.section-header-padded { padding-top: 2rem; }
.section-header-padded h2 { font-size: 2.2rem; }
.pricing-cta-box { text-align: center; margin-top: 3rem; padding: 2rem; background: var(--primary-light); border-radius: var(--radius-lg); }
.pricing-cta-box h3 { margin-bottom: .5rem; }
.pricing-cta-box p { color: var(--text-muted); margin-bottom: 1.25rem; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --section-gap: 4rem; }
  .nav-links { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: var(--surface); border-bottom: 1px solid var(--border); padding: 1rem 1.5rem; gap: 1rem; box-shadow: var(--shadow-md); }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .hero { padding: 7rem 0 3rem; }
  .hero h1 { font-size: 2.2rem; }
  .hero .subtitle { font-size: 1.05rem; }
  .compare-grid, .snapshot-showcase, .mcp-grid { grid-template-columns: 1fr; }
  .audience-grid { grid-template-columns: 1fr; max-width: 440px; margin: 0 auto; }
  .steps-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .usecase-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: .5rem; text-align: center; }
  .cta-steps { flex-direction: column; align-items: center; }
  .code-block pre { font-size: .78rem; }
  .hero-code .code-block pre { font-size: .75rem; }
  .arch-row { flex-direction: column; gap: .75rem; }
  .arch-fork, .arch-merge { display: none; }
  .doc-with-sidebar { grid-template-columns: 1fr; }
  .doc-sidebar { display: none; }
}