/* ===== Lambda Script Website — Design System ===== */

:root {
  /* Colors */
  --color-bg: #0f1117;
  --color-bg-alt: #161822;
  --color-bg-card: #1c1e2b;
  --color-bg-code: #1a1c28;
  --color-border: #2a2d3e;
  --color-border-light: #363950;

  --color-text: #e2e4ed;
  --color-text-muted: #9499b3;
  --color-text-dim: #6b7094;

  --color-primary: #7c6ef6;
  --color-primary-light: #9b8fff;
  --color-primary-dark: #5a4fd4;
  --color-primary-bg: rgba(124, 110, 246, 0.08);

  --color-accent: #38bdf8;
  --color-accent-bg: rgba(56, 189, 248, 0.08);

  --color-green: #34d399;
  --color-green-bg: rgba(52, 211, 153, 0.08);
  --color-yellow: #fbbf24;
  --color-red: #f87171;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Layout */
  --max-width: 1200px;
  --max-width-narrow: 800px;
  --nav-height: 64px;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  /* Transitions */
  --transition: 150ms ease;
}

/* ===== Light Theme ===== */
[data-theme="light"] {
  --color-bg: #f8f9fc;
  --color-bg-alt: #eef0f5;
  --color-bg-card: #ffffff;
  --color-bg-code: #f0f1f6;
  --color-border: #d8dbe6;
  --color-border-light: #c2c7d6;

  --color-text: #2c2f3e;
  --color-text-muted: #5c6078;
  --color-text-dim: #848899;

  --color-primary: #6355e0;
  --color-primary-light: #5248c9;
  --color-primary-dark: #4a3fb8;
  --color-primary-bg: rgba(99, 85, 224, 0.07);

  --color-accent: #0c84c4;
  --color-accent-bg: rgba(12, 132, 196, 0.07);

  --color-green: #1a9e6f;
  --color-green-bg: rgba(26, 158, 111, 0.07);
  --color-yellow: #b58a00;
  --color-red: #d44040;
}

[data-theme="light"] h1,
[data-theme="light"] h2,
[data-theme="light"] h3,
[data-theme="light"] h4,
[data-theme="light"] h5,
[data-theme="light"] h6 {
  color: #1a1d2e;
}

[data-theme="light"] .nav {
  background: rgba(248, 249, 252, 0.88);
}

[data-theme="light"] .nav-logo {
  color: #1a1d2e;
}

[data-theme="light"] .nav-links a:hover,
[data-theme="light"] .nav-links a.active {
  color: #1a1d2e;
}

[data-theme="light"] .nav-links.open {
  background: var(--color-bg);
}

[data-theme="light"] .nav-cta {
  background: var(--color-primary);
  color: #fff !important;
}
[data-theme="light"] .nav-cta:hover {
  background: var(--color-primary-dark) !important;
}

[data-theme="light"] .hero::before {
  background: radial-gradient(ellipse at center, rgba(99, 85, 224, 0.08) 0%, transparent 70%);
}

[data-theme="light"] .hero-badge {
  border-color: rgba(99, 85, 224, 0.2);
}

[data-theme="light"] .hero h1 .highlight {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

[data-theme="light"] .stat-item .stat-value {
  color: #1a1d2e;
}

[data-theme="light"] .code-tab.active {
  color: #1a1d2e;
}

[data-theme="light"] .btn-primary {
  color: #fff;
}
[data-theme="light"] .btn-primary:hover {
  color: #fff;
}

[data-theme="light"] .btn-secondary {
  color: var(--color-text);
}
[data-theme="light"] .btn-secondary:hover {
  color: #1a1d2e;
}

[data-theme="light"] .btn-ghost:hover {
  color: #1a1d2e;
}

[data-theme="light"] .os-tab:hover {
  color: #1a1d2e;
}

[data-theme="light"] .copy-btn:hover {
  color: #1a1d2e;
}

[data-theme="light"] .card:hover {
  border-color: var(--color-primary);
}

[data-theme="light"] .feature-card {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

[data-theme="light"] .card {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

[data-theme="light"] .benchmark-table {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

[data-theme="light"] .code-example {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

[data-theme="light"] .pipeline-step .step-value {
  color: #1a1d2e;
}

[data-theme="light"] .footer-col a:hover {
  color: #1a1d2e;
}

[data-theme="light"] code {
  color: var(--color-primary);
}

[data-theme="light"] pre code {
  color: var(--color-text);
}

[data-theme="light"] pre code {
  color: var(--color-text);
}

/* Override inline syntax highlight colors for light theme */
[data-theme="light"] pre span[style*="color:#6b7094"] {
  color: #848899 !important;
}
[data-theme="light"] pre span[style*="color:#38bdf8"] {
  color: #0c84c4 !important;
}
[data-theme="light"] pre span[style*="color:#34d399"] {
  color: #1a9e6f !important;
}
[data-theme="light"] pre span[style*="color:#9b8fff"] {
  color: #5248c9 !important;
}
[data-theme="light"] pre span[style*="color:#fbbf24"] {
  color: #b58a00 !important;
}

/* Theme Toggle */
.nav-github {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition);
}
.nav-github:hover {
  color: var(--color-text);
  border-color: var(--color-border-light);
}

.theme-toggle {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  transition: all var(--transition);
  flex-shrink: 0;
}
.theme-toggle:hover {
  color: var(--color-text);
  border-color: var(--color-border-light);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--color-primary-light); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent); }

img { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  color: #fff;
}
h1 { font-size: 2.75rem; letter-spacing: -0.03em; }
h2 { font-size: 2rem; letter-spacing: -0.02em; }
h3 { font-size: 1.4rem; }
h4 { font-size: 1.15rem; }

p { margin-bottom: var(--space-md); }

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--color-bg-code);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  color: var(--color-primary-light);
}

pre {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  background: var(--color-bg-code);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  overflow-x: auto;
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

pre code {
  background: none;
  padding: 0;
  font-size: inherit;
  color: var(--color-text);
}

/* ===== Utilities ===== */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--space-xl); }
.container-narrow { max-width: var(--max-width-narrow); margin: 0 auto; padding: 0 var(--space-xl); }
.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }
.text-dim { color: var(--color-text-dim); }
.mt-xs { margin-top: var(--space-xs); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }
.mt-3xl { margin-top: var(--space-3xl); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(15, 17, 23, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  white-space: nowrap;
}

.nav-logo .logo-symbol {
  font-size: 1.5rem;
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  padding: var(--space-xs) 0;
  transition: color var(--transition);
}

.nav-links a:hover,
.nav-links a.active { color: #fff; }

.nav-icons {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-left: var(--space-md);
  flex-shrink: 0;
}

.nav-cta {
  background: var(--color-primary);
  color: #fff !important;
  padding: 0.4rem 1rem !important;
  border-radius: var(--radius-sm);
  font-weight: 600 !important;
  font-size: 0.85rem !important;
  transition: background var(--transition) !important;
}
.nav-cta:hover { background: var(--color-primary-dark) !important; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--space-xs);
}

/* ===== Hero Section ===== */
.hero {
  padding: calc(var(--nav-height) + var(--space-3xl)) 0 var(--space-4xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(ellipse at center, rgba(124, 110, 246, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--color-primary-bg);
  border: 1px solid rgba(124, 110, 246, 0.2);
  padding: 0.35rem 1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--color-primary-light);
  margin-bottom: var(--space-xl);
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  max-width: 850px;
  margin: 0 auto var(--space-lg);
  letter-spacing: -0.03em;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 620px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

.pipeline-compact {
  padding: var(--space-lg) 0 0;
}
.pipeline-compact .pipeline-step {
  padding: var(--space-xs) var(--space-sm);
  min-width: auto;
  background: transparent;
  border: none;
}
.pipeline-compact .step-label {
  font-size: 0.55rem;
}
.pipeline-compact .step-value {
  font-size: 0.6rem;
  font-weight: 500;
}
.pipeline-compact .pipeline-arrow {
  font-size: 0.85rem;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.7rem 1.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover { background: var(--color-primary-dark); color: #fff; }

.btn-secondary {
  background: var(--color-bg-card);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover { border-color: var(--color-border-light); color: #fff; }

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover { color: #fff; border-color: var(--color-border-light); }

/* ===== Sections ===== */
section {
  padding: var(--space-2xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-header p {
  color: var(--color-text-muted);
  max-width: 600px;
  margin: var(--space-md) auto 0;
  font-size: 1.05rem;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary-light);
  margin-bottom: var(--space-sm);
}

/* ===== Feature Grid ===== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-lg);
}

.feature-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: border-color var(--transition);
}
.feature-card:hover { border-color: var(--color-border-light); }

.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: var(--space-lg);
}

.feature-icon.purple { background: var(--color-primary-bg); color: var(--color-primary-light); }
.feature-icon.blue { background: var(--color-accent-bg); color: var(--color-accent); }
.feature-icon.green { background: var(--color-green-bg); color: var(--color-green); }

.feature-card h3 { margin-bottom: var(--space-sm); font-size: 1.15rem; }
.feature-card p { color: var(--color-text-muted); font-size: 0.95rem; margin-bottom: 0; }

/* ===== Pipeline Diagram ===== */
.pipeline {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
  padding: var(--space-2xl) 0;
}

.pipeline-step {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  text-align: center;
  min-width: 140px;
}

.pipeline-step .step-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-dim);
  margin-bottom: var(--space-xs);
}

.pipeline-step .step-value {
  font-weight: 600;
  font-size: 0.85rem;
}

.pipeline-arrow {
  color: var(--color-text-dim);
  font-size: 1.2rem;
}

/* ===== Format Tags ===== */
.format-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
}

.format-tag {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.3rem 0.8rem;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--color-text-muted);
}

/* ===== Stats Row ===== */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-lg);
  text-align: center;
}

.stat-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg) var(--space-md);
}

.stat-item .stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
}

.stat-item .stat-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

/* ===== Code Example Section ===== */
.code-example {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.code-tabs {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  overflow-x: auto;
}

.code-tab {
  padding: var(--space-sm) var(--space-lg);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-dim);
  cursor: pointer;
  border: none;
  background: none;
  white-space: nowrap;
  transition: color var(--transition);
}

.code-tab:hover { color: var(--color-text-muted); }
.code-tab.active { color: #fff; box-shadow: inset 0 -2px 0 var(--color-primary); }

.code-panel {
  display: none;
  padding: var(--space-lg);
}
.code-panel.active { display: block; }

.code-panel pre {
  margin: 0;
  border: none;
  background: none;
}

/* ===== Table ===== */
table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-lg);
}

th, td {
  text-align: left;
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

th {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-dim);
  background: var(--color-bg-alt);
}

td { font-size: 0.93rem; color: var(--color-text-muted); }

/* ===== Cards List ===== */
.card-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: border-color var(--transition), transform var(--transition);
  text-decoration: none;
  display: block;
}

.card:hover { border-color: var(--color-primary); transform: translateY(-2px); }
.card h3 { margin-bottom: var(--space-sm); font-size: 1.1rem; }
.card p { color: var(--color-text-muted); font-size: 0.9rem; margin-bottom: 0; }

.card-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  margin-bottom: var(--space-sm);
}
.card-tag.purple { background: var(--color-primary-bg); color: var(--color-primary-light); }
.card-tag.blue { background: var(--color-accent-bg); color: var(--color-accent); }
.card-tag.green { background: var(--color-green-bg); color: var(--color-green); }

/* ===== Benchmark Table ===== */
.benchmark-table {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.benchmark-table table { margin: 0; }

/* ===== Install Section ===== */
.install-command {
  background: var(--color-bg-code);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 500px;
  margin: 0 auto;
}

.install-command .prompt { color: var(--color-green); margin-right: var(--space-sm); }
.install-command .cmd { color: var(--color-text); }

.copy-btn {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  color: var(--color-text-dim);
  padding: 0.25rem 0.5rem;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all var(--transition);
}
.copy-btn:hover { color: #fff; border-color: var(--color-border-light); }

/* ===== Tabs (OS selector) ===== */
.os-tabs {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  margin-bottom: var(--space-xl);
}

.os-tab {
  padding: 0.5rem 1.2rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: none;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition);
}
.os-tab:hover { border-color: var(--color-border-light); color: #fff; }
.os-tab.active { background: var(--color-primary-bg); border-color: var(--color-primary); color: var(--color-primary-light); }

.os-panel { display: none; }
.os-panel.active { display: block; }

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--space-2xl);
}

.footer-brand p { color: var(--color-text-muted); font-size: 0.9rem; margin-top: var(--space-sm); max-width: 280px; }

.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-dim);
  margin-bottom: var(--space-md);
}

.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: var(--space-sm); }
.footer-col a { color: var(--color-text-muted); font-size: 0.9rem; }
.footer-col a:hover { color: #fff; }

.footer-bottom {
  margin-top: var(--space-2xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-dim);
}

/* ===== Doc Page Layout ===== */
.page-header {
  padding: calc(var(--nav-height) + var(--space-3xl)) 0 var(--space-2xl);
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.page-header p {
  color: var(--color-text-muted);
  max-width: 600px;
  margin: var(--space-md) auto 0;
  font-size: 1.05rem;
}

.doc-content {
  padding: var(--space-3xl) 0;
}

.doc-content h2 { margin-top: var(--space-3xl); margin-bottom: var(--space-lg); }
.doc-content h3 { margin-top: var(--space-2xl); margin-bottom: var(--space-md); }
.doc-content h2:first-child { margin-top: 0; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }

  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-lg);
    gap: var(--space-md);
  }

  .hero { padding-top: calc(var(--nav-height) + var(--space-2xl)); }
  .footer-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .pipeline { gap: var(--space-sm); }
  .pipeline-step { min-width: 100px; padding: var(--space-sm) var(--space-md); }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
}