/* ============================================
   GaliGali Moments — Enterprise Design System
   ============================================ */

/* --- CSS Reset & Variables --- */
:root {
  --color-primary: #6366f1;
  --color-primary-dark: #4f46e5;
  --color-primary-light: #818cf8;
  --color-accent: #06b6d4;
  --color-accent-dark: #0891b2;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-surface: #ffffff;
  --color-surface-alt: #f8fafc;
  --color-surface-dark: #0f172a;
  --color-surface-dark-alt: #1e293b;
  --color-text: #0f172a;
  --color-text-secondary: #475569;
  --color-text-tertiary: #94a3b8;
  --color-text-on-dark: #f1f5f9;
  --color-border: #e2e8f0;
  --color-border-dark: #334155;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --transition: 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-surface);
  line-height: 1.6;
  font-size: 16px;
}

a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary-dark); }
img { max-width: 100%; height: auto; }
code { font-family: var(--font-mono); font-size: 0.875em; }

/* --- Layout --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text);
}

.nav-logo .logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 14px;
  font-weight: 800;
}

.nav-logo span.text-gradient {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}

.nav-links a:hover { color: var(--color-text); }
.nav-links a.active { color: var(--color-primary); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
  box-shadow: 0 1px 3px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
  transform: translateY(-1px);
  color: white;
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-surface-alt);
  border-color: var(--color-text-tertiary);
  color: var(--color-text);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  padding: 8px 16px;
}

.btn-ghost:hover { color: var(--color-text); }

.btn-lg {
  padding: 14px 28px;
  font-size: 1rem;
  border-radius: var(--radius-lg);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.8rem;
}

/* --- Hero Section --- */
.hero {
  padding: 140px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.15);
  border-radius: 100px;
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: 24px;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--color-success);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

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

.hero p.subtitle {
  font-size: 1.2rem;
  color: var(--color-text-secondary);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-metrics {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid var(--color-border);
}

.hero-metric {
  text-align: center;
}

.hero-metric .value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.hero-metric .label {
  font-size: 0.825rem;
  color: var(--color-text-tertiary);
  font-weight: 500;
  margin-top: 4px;
}

/* --- Section --- */
.section {
  padding: 96px 0;
}

.section-dark {
  background: var(--color-surface-dark);
  color: var(--color-text-on-dark);
}

.section-alt {
  background: var(--color-surface-alt);
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header .overline {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.section-dark .section-header .overline {
  color: var(--color-accent);
}

.section-header h2 {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.section-dark .section-header p {
  color: var(--color-text-tertiary);
}

/* --- Signal Cards Grid --- */
.signals-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.signal-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
}

.signal-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  border-color: var(--color-primary-light);
}

.signal-card .icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 16px;
}

.signal-card .icon.weather { background: rgba(251, 191, 36, 0.12); }
.signal-card .icon.aqi { background: rgba(16, 185, 129, 0.12); }
.signal-card .icon.traffic { background: rgba(239, 68, 68, 0.12); }
.signal-card .icon.scene { background: rgba(99, 102, 241, 0.12); }

.signal-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.signal-card p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.signal-card .fields {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.signal-card .field-tag {
  display: inline-block;
  padding: 3px 10px;
  background: var(--color-surface-alt);
  border-radius: 100px;
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}

/* --- Features Grid --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  padding: 32px;
  border-radius: var(--radius-lg);
  background: var(--color-surface-dark-alt);
  border: 1px solid var(--color-border-dark);
  transition: all var(--transition);
}

.feature-card:hover {
  border-color: rgba(99, 102, 241, 0.3);
  transform: translateY(-2px);
}

.feature-card .feature-icon {
  font-size: 28px;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text-on-dark);
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--color-text-tertiary);
  line-height: 1.6;
}

/* --- Code Block --- */
.code-block {
  background: #0d1117;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid #21262d;
  max-width: 700px;
  margin: 0 auto;
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: #161b22;
  border-bottom: 1px solid #21262d;
}

.code-header .dots {
  display: flex;
  gap: 6px;
}

.code-header .dot-r { width: 10px; height: 10px; border-radius: 50%; background: #ff5f57; }
.code-header .dot-y { width: 10px; height: 10px; border-radius: 50%; background: #febc2e; }
.code-header .dot-g { width: 10px; height: 10px; border-radius: 50%; background: #28c840; }

.code-header .lang {
  font-size: 0.75rem;
  color: #8b949e;
  font-family: var(--font-mono);
}

.code-body {
  padding: 20px;
  overflow-x: auto;
}

.code-body pre {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.7;
  color: #c9d1d9;
  white-space: pre;
}

.code-body .keyword { color: #ff7b72; }
.code-body .string { color: #a5d6ff; }
.code-body .comment { color: #8b949e; }
.code-body .property { color: #d2a8ff; }
.code-body .number { color: #79c0ff; }
.code-body .method { color: #d2a8ff; }

/* --- API Tiers --- */
.tiers-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.tier-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 36px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
}

.tier-card:hover {
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary-light);
}

.tier-card.featured {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary), var(--shadow-lg);
}

.tier-card.featured::before {
  content: 'Most Popular';
  position: absolute;
  top: 16px;
  right: 16px;
  padding: 4px 12px;
  background: var(--color-primary);
  color: white;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tier-card.coming-soon {
  opacity: 0.65;
}

.tier-card.coming-soon::before {
  content: 'Coming Soon';
  position: absolute;
  top: 16px;
  right: 16px;
  padding: 4px 12px;
  background: var(--color-text-tertiary);
  color: white;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
}

.tier-number {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.tier-card h3 {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.tier-card .tier-tagline {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
  font-style: italic;
}

.tier-card .tier-price {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.tier-card .tier-price span {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.tier-card .tier-desc {
  font-size: 0.825rem;
  color: var(--color-text-tertiary);
  margin-bottom: 24px;
}

.tier-card ul {
  list-style: none;
  margin-bottom: 28px;
}

.tier-card ul li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 6px 0;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.tier-card ul li::before {
  content: '✓';
  color: var(--color-success);
  font-weight: 700;
  flex-shrink: 0;
}

/* --- Pricing Table --- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.price-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  text-align: center;
  transition: all var(--transition);
}

.price-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}

.price-card.featured {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary);
  position: relative;
}

.price-card .plan-name {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.price-card h3 {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.price-card .price {
  font-size: 2.5rem;
  font-weight: 900;
  margin-bottom: 4px;
}

.price-card .price .currency {
  font-size: 1.2rem;
  vertical-align: super;
}

.price-card .price .period {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.price-card .price-desc {
  font-size: 0.825rem;
  color: var(--color-text-tertiary);
  margin-bottom: 28px;
}

.price-card ul {
  list-style: none;
  text-align: left;
  margin-bottom: 32px;
}

.price-card ul li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
}

.price-card ul li:last-child { border-bottom: none; }

.price-card ul li .check {
  color: var(--color-success);
  font-weight: 700;
  flex-shrink: 0;
}

/* --- Interactive Demo --- */
.demo-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}

.demo-input {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.demo-input h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.demo-input label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
  margin-top: 16px;
}

.demo-input label:first-of-type { margin-top: 0; }

.demo-input input,
.demo-input select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: var(--font-sans);
  transition: border-color var(--transition);
}

.demo-input input:focus,
.demo-input select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.demo-result {
  background: #0d1117;
  border-radius: var(--radius-lg);
  border: 1px solid #21262d;
  overflow: hidden;
}

.demo-result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: #161b22;
  border-bottom: 1px solid #21262d;
}

.demo-result-header .status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-family: var(--font-mono);
}

.demo-result-header .status.ok { color: #3fb950; }
.demo-result-header .status.loading { color: #d29922; }
.demo-result-header .status.error { color: #f85149; }

.demo-result-body {
  padding: 20px;
  max-height: 500px;
  overflow-y: auto;
}

.demo-result-body pre {
  font-family: var(--font-mono);
  font-size: 0.825rem;
  line-height: 1.7;
  color: #c9d1d9;
  white-space: pre-wrap;
}

/* --- Docs Section --- */
.docs-nav {
  display: flex;
  gap: 4px;
  background: var(--color-surface-alt);
  padding: 4px;
  border-radius: var(--radius-md);
  margin-bottom: 32px;
  overflow-x: auto;
}

.docs-nav button {
  padding: 10px 18px;
  border: none;
  background: transparent;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition);
}

.docs-nav button.active {
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}

.docs-nav button:hover:not(.active) {
  color: var(--color-text);
}

.endpoint-group {
  margin-bottom: 40px;
}

.endpoint {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  margin-bottom: 16px;
  overflow: hidden;
}

.endpoint-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  cursor: pointer;
  transition: background var(--transition);
}

.endpoint-header:hover { background: var(--color-surface-alt); }

.method-badge {
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.7rem;
  font-weight: 800;
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
}

.method-badge.get { background: rgba(16, 185, 129, 0.12); color: #059669; }
.method-badge.post { background: rgba(99, 102, 241, 0.12); color: #4f46e5; }
.method-badge.ws { background: rgba(251, 191, 36, 0.12); color: #d97706; }

.endpoint-path {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
}

.endpoint-desc {
  font-size: 0.85rem;
  color: var(--color-text-tertiary);
  margin-left: auto;
}

.endpoint-body {
  padding: 0 20px 20px;
  display: none;
}

.endpoint.open .endpoint-body { display: block; }

.endpoint-body h4 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-tertiary);
  margin: 16px 0 8px;
}

.param-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.param-table th {
  text-align: left;
  padding: 8px 12px;
  background: var(--color-surface-alt);
  font-weight: 600;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
}

.param-table td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.param-table .param-name {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--color-primary);
}

.param-table .param-type {
  font-family: var(--font-mono);
  color: var(--color-text-tertiary);
  font-size: 0.8rem;
}

.param-table .required {
  color: var(--color-danger);
  font-size: 0.7rem;
  font-weight: 700;
}

/* --- Roadmap --- */
.roadmap {
  position: relative;
  padding-left: 32px;
}

.roadmap::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.roadmap-item {
  position: relative;
  margin-bottom: 48px;
  padding-left: 32px;
}

.roadmap-item::before {
  content: '';
  position: absolute;
  left: -26px;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 3px solid var(--color-border);
  background: var(--color-surface);
}

.roadmap-item.active::before {
  border-color: var(--color-primary);
  background: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
}

.roadmap-item.completed::before {
  border-color: var(--color-success);
  background: var(--color-success);
}

.roadmap-item .phase-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

.roadmap-item.active .phase-label { color: var(--color-primary); }
.roadmap-item.completed .phase-label { color: var(--color-success); }
.roadmap-item .phase-label { color: var(--color-text-tertiary); }

.roadmap-item h3 {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.roadmap-item p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

.roadmap-item .endpoints-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.roadmap-item .endpoint-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: 0.8rem;
  font-family: var(--font-mono);
}

/* --- Footer --- */
.footer {
  background: var(--color-surface-dark);
  color: var(--color-text-on-dark);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--color-text-tertiary);
  margin-top: 12px;
  line-height: 1.6;
}

.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-tertiary);
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  color: var(--color-text-on-dark);
  font-size: 0.875rem;
  padding: 4px 0;
  transition: color var(--transition);
}

.footer-col a:hover { color: var(--color-primary-light); }

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--color-border-dark);
  display: flex;
  justify-content: space-between;
  font-size: 0.825rem;
  color: var(--color-text-tertiary);
}

/* --- Utility --- */
.text-gradient {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.badge-live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  background: rgba(16, 185, 129, 0.12);
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-success);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-live::before {
  content: '';
  width: 5px;
  height: 5px;
  background: var(--color-success);
  border-radius: 50%;
}

.badge-soon {
  display: inline-flex;
  padding: 3px 10px;
  background: rgba(148, 163, 184, 0.12);
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Mobile hamburger */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--color-text);
  font-size: 1.5rem;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .signals-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .tiers-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .hero h1 { font-size: 2.25rem; }
  .hero p.subtitle { font-size: 1rem; }
  .hero-metrics { flex-direction: column; gap: 24px; }
  .hero-actions { flex-direction: column; }
  .signals-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .demo-container { grid-template-columns: 1fr; }
  .tiers-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
  .container { padding: 0 16px; }
  .endpoint-desc { display: none; }
}