/* ============================================
   Live Translator Docs — Dark Cavern Theme
   ============================================ */

:root {
  /* Cavern palette */
  --bg-deepest: #0a0300;
  --bg-base: #0f0500;
  --bg-mid: #1a0a00;
  --bg-cavern: #2a1200;
  --bg-warm: #3a1f00;

  /* Crystal glow */
  --crystal-dim: #7a3500;
  --crystal-glow: #c85000;
  --crystal-core: #ff8a00;
  --crystal-hot: #ffba00;
  --crystal-peak: #ffd000;

  /* Neon accents */
  --neon-cyan: #00f9ff;
  --neon-teal: #00c4cc;
  --neon-dim: rgba(0, 249, 255, 0.15);
  --neon-glow: rgba(0, 249, 255, 0.08);

  /* Text */
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.75);
  --text-dim: rgba(255, 255, 255, 0.55);
  --text-muted: rgba(255, 255, 255, 0.3);

  /* Borders */
  --border-warm: rgba(255, 138, 0, 0.2);
  --border-neon: rgba(0, 249, 255, 0.2);
  --border-subtle: rgba(255, 255, 255, 0.08);

  /* Sizing */
  --header-height: 56px;
  --sidebar-width: 260px;

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

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg-base);
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
  height: 100vh;
}

a {
  color: var(--neon-cyan);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--crystal-hot);
}

code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: rgba(255, 138, 0, 0.1);
  color: var(--crystal-core);
  padding: 2px 6px;
  border-radius: 4px;
}

/* ============================================
   Header
   ============================================ */

.top-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(10, 3, 0, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 100;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 4px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 16px;
}

.logo:hover {
  color: var(--text-primary);
}

.logo-icon {
  color: var(--crystal-core);
  font-size: 20px;
  filter: drop-shadow(0 0 6px rgba(255, 138, 0, 0.5));
}

.logo-badge {
  font-size: 11px;
  font-weight: 500;
  color: var(--neon-cyan);
  background: var(--neon-dim);
  border: 1px solid var(--border-neon);
  padding: 2px 8px;
  border-radius: 10px;
  letter-spacing: 0.5px;
}

.version-badge {
  font-size: 11px;
  font-weight: 500;
  color: var(--crystal-core);
  background: rgba(255, 138, 0, 0.1);
  border: 1px solid var(--border-warm);
  padding: 2px 8px;
  border-radius: 10px;
  letter-spacing: 0.3px;
  font-family: var(--font-mono);
}

.footer-version {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

.header-center {
  flex: 1;
  display: flex;
  justify-content: center;
  max-width: 480px;
  margin: 0 auto;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  max-width: 400px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 6px 12px;
  transition: border-color 0.2s, background 0.2s;
}

.search-box:focus-within {
  border-color: var(--border-neon);
  background: rgba(0, 249, 255, 0.03);
}

.search-icon {
  color: var(--text-muted);
  flex-shrink: 0;
}

.search-box input {
  background: none;
  border: none;
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 14px;
  outline: none;
  width: 100%;
}

.search-box input::placeholder {
  color: var(--text-muted);
}

.search-shortcut {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 2px 6px;
  white-space: nowrap;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-link {
  color: var(--text-dim);
  transition: color 0.2s;
}

.header-link:hover {
  color: var(--text-primary);
}

/* ============================================
   Search Overlay
   ============================================ */

.search-overlay {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  max-height: 400px;
  background: rgba(15, 5, 0, 0.98);
  border: 1px solid var(--border-neon);
  border-radius: 10px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6), 0 0 20px rgba(0, 249, 255, 0.1);
  z-index: 200;
  overflow-y: auto;
  padding: 8px;
}

.search-overlay.active {
  display: block;
}

.search-result-item {
  display: block;
  padding: 10px 14px;
  border-radius: 6px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background 0.15s;
}

.search-result-item:hover,
.search-result-item.active {
  background: rgba(0, 249, 255, 0.08);
  color: var(--text-primary);
}

.search-result-item .result-title {
  font-weight: 500;
  color: var(--text-primary);
  font-size: 14px;
}

.search-result-item .result-section {
  font-size: 12px;
  color: var(--crystal-core);
  margin-top: 2px;
}

.search-no-results {
  padding: 20px;
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
}

/* ============================================
   Layout
   ============================================ */

.layout {
  display: flex;
  margin-top: var(--header-height);
  height: calc(100vh - var(--header-height));
}

/* ============================================
   Sidebar
   ============================================ */

.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  height: 100%;
  overflow-y: auto;
  background: rgba(10, 3, 0, 0.6);
  border-right: 1px solid var(--border-subtle);
  padding: 16px 0;
}

.sidebar::-webkit-scrollbar {
  width: 4px;
}

.sidebar::-webkit-scrollbar-thumb {
  background: var(--border-warm);
  border-radius: 2px;
}

.sidebar-inner {
  padding: 0 12px;
}

.mobile-search {
  display: none;
}

.mobile-search-results {
  display: none;
}

.mobile-search-results.active {
  display: block;
  max-height: 260px;
  overflow-y: auto;
  margin-top: 6px;
  border: 1px solid var(--border-neon);
  border-radius: 8px;
  background: rgba(15, 5, 0, 0.95);
  padding: 4px;
}

.mobile-search-results .search-result-item {
  display: block;
  padding: 10px 12px;
  border-radius: 6px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background 0.15s;
}

.mobile-search-results .search-result-item.active {
  background: rgba(0, 249, 255, 0.08);
  color: var(--text-primary);
}

.mobile-search-results .result-title {
  font-weight: 500;
  font-size: 13px;
}

.mobile-search-results .result-section {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

.nav-section {
  margin-bottom: 20px;
}

.nav-section-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  padding: 8px 12px 6px;
}

.nav-link {
  display: block;
  padding: 6px 12px;
  font-size: 14px;
  color: var(--text-dim);
  border-radius: 6px;
  transition: all 0.15s;
  border-left: 2px solid transparent;
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.nav-link.active {
  color: var(--neon-cyan);
  background: var(--neon-dim);
  border-left-color: var(--neon-cyan);
}

/* ============================================
   Main Content
   ============================================ */

.content {
  flex: 1;
  overflow-y: auto;
  padding: 0;
}

.content::-webkit-scrollbar {
  width: 6px;
}

.content::-webkit-scrollbar-thumb {
  background: var(--border-warm);
  border-radius: 3px;
}

.page {
  max-width: 840px;
  margin: 0 auto;
  padding: 40px 48px 60px;
}

/* ============================================
   Page Header
   ============================================ */

.page-header {
  margin-bottom: 36px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.page-header h1 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 8px;
}

.subtitle {
  font-size: 16px;
  color: var(--text-dim);
  line-height: 1.5;
}

h2 {
  font-size: 22px;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 40px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-subtle);
}

h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 28px;
  margin-bottom: 12px;
}

h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--crystal-hot);
  margin-bottom: 8px;
}

p {
  margin-bottom: 14px;
}

ul, ol {
  padding-left: 24px;
  margin-bottom: 16px;
}

li {
  margin-bottom: 6px;
}

strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* ============================================
   Hero Banner
   ============================================ */

.hero-banner {
  position: relative;
  background: linear-gradient(135deg, var(--bg-cavern) 0%, rgba(200, 80, 0, 0.12) 50%, var(--bg-mid) 100%);
  border: 1px solid var(--border-warm);
  border-radius: 16px;
  padding: 48px 40px;
  text-align: center;
  margin-bottom: 36px;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255, 138, 0, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-banner h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  border: none;
  margin-top: 0;
  padding-bottom: 0;
  line-height: 1.3;
  margin-bottom: 12px;
}

.hero-banner p {
  color: var(--text-dim);
  font-size: 16px;
  max-width: 560px;
  margin: 0 auto 24px;
}

.highlight {
  background: linear-gradient(90deg, var(--crystal-core), var(--crystal-peak));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  border-radius: 8px;
  transition: all 0.2s;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--crystal-glow), var(--crystal-core));
  color: var(--bg-deepest);
  border-color: var(--crystal-core);
}

.btn-primary:hover {
  color: var(--bg-deepest);
  box-shadow: 0 0 20px rgba(255, 138, 0, 0.3);
}

.btn-secondary {
  background: var(--neon-dim);
  color: var(--neon-cyan);
  border-color: var(--border-neon);
}

.btn-secondary:hover {
  color: var(--neon-cyan);
  background: rgba(0, 249, 255, 0.12);
  box-shadow: 0 0 20px rgba(0, 249, 255, 0.15);
}

.btn-ghost {
  color: var(--text-dim);
  border-color: var(--border-subtle);
}

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

/* ============================================
   Card Grid
   ============================================ */

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.card-grid.cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

.card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 24px;
  cursor: pointer;
  transition: all 0.2s;
}

.card:hover {
  border-color: var(--border-neon);
  background: var(--neon-glow);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.card-icon {
  font-size: 24px;
  margin-bottom: 12px;
  filter: drop-shadow(0 0 4px rgba(255, 138, 0, 0.4));
}

.card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 8px;
}

.card p {
  font-size: 14px;
  color: var(--text-dim);
  margin: 0;
  line-height: 1.5;
}

/* ============================================
   Info Box
   ============================================ */

.info-box {
  display: flex;
  gap: 14px;
  background: var(--neon-dim);
  border: 1px solid var(--border-neon);
  border-radius: 10px;
  padding: 16px 20px;
  margin: 24px 0;
}

.info-box.success {
  background: rgba(34, 197, 94, 0.08);
  border-color: rgba(34, 197, 94, 0.3);
}

.info-box.warning {
  background: rgba(255, 186, 0, 0.08);
  border-color: rgba(255, 186, 0, 0.3);
}

.info-icon {
  font-size: 20px;
  flex-shrink: 0;
  line-height: 1.4;
}

.info-box p {
  margin: 4px 0 0;
  font-size: 14px;
  color: var(--text-dim);
}

.info-box strong {
  font-size: 14px;
}

/* ============================================
   Code Blocks
   ============================================ */

.code-block {
  background: rgba(10, 3, 0, 0.8);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  margin: 16px 0;
  overflow: hidden;
}

.code-block.compact {
  margin: 8px 0;
}

.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border-subtle);
  font-size: 12px;
  color: var(--text-muted);
}

.copy-btn {
  background: none;
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 12px;
  padding: 2px 10px;
  border-radius: 4px;
  cursor: pointer;
  font-family: var(--font);
  transition: all 0.2s;
}

.copy-btn:hover {
  border-color: var(--neon-cyan);
  color: var(--neon-cyan);
}

.copy-btn.copied {
  border-color: rgba(34, 197, 94, 0.5);
  color: #22c55e;
}

pre {
  padding: 16px;
  overflow-x: auto;
  margin: 0;
}

pre code {
  background: none;
  padding: 0;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.6;
}

/* ============================================
   Tables
   ============================================ */

.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 14px;
}

.data-table thead {
  background: rgba(255, 255, 255, 0.03);
}

.data-table th {
  text-align: left;
  padding: 10px 14px;
  font-weight: 600;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-warm);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.data-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: top;
}

.data-table tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

/* Badges */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
}

.badge.on {
  background: rgba(34, 197, 94, 0.15);
  color: #22c55e;
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.badge.off {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.badge.required {
  background: rgba(255, 138, 0, 0.15);
  color: var(--crystal-core);
  border: 1px solid var(--border-warm);
}

/* ============================================
   Steps
   ============================================ */

.steps {
  margin: 24px 0;
}

.step {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  position: relative;
}

.step::before {
  content: '';
  position: absolute;
  left: 17px;
  top: 40px;
  bottom: -16px;
  width: 2px;
  background: var(--border-warm);
}

.step:last-child::before {
  display: none;
}

.step-number {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--crystal-glow), var(--crystal-core));
  color: var(--bg-deepest);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.step-content h3 {
  margin: 0 0 6px;
  font-size: 16px;
}

.step-content p {
  font-size: 14px;
  color: var(--text-dim);
  margin: 0;
}

/* ============================================
   Requirements Grid
   ============================================ */

.requirements-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 16px 0;
}

.req-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
}

.req-icon {
  color: var(--crystal-core);
  font-size: 10px;
  margin-top: 4px;
  flex-shrink: 0;
}

.req-item strong {
  display: block;
  font-size: 14px;
  margin-bottom: 2px;
}

.req-desc {
  font-size: 13px;
  color: var(--text-muted);
}

/* ============================================
   Architecture Diagram
   ============================================ */

.arch-diagram {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 32px;
  margin: 24px 0;
}

.arch-row {
  display: flex;
  gap: 20px;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
}

.arch-box {
  padding: 20px 24px;
  border-radius: 10px;
  min-width: 180px;
  text-align: center;
}

.arch-box.client {
  background: var(--neon-dim);
  border: 1px solid var(--border-neon);
}

.arch-box.server {
  background: rgba(255, 138, 0, 0.08);
  border: 1px solid var(--border-warm);
}

.arch-box.external {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
}

.arch-label {
  font-weight: 600;
  font-size: 15px;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.arch-detail {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.6;
}

.arch-arrow {
  font-size: 24px;
  color: var(--crystal-core);
}

.arch-connections {
  display: flex;
  justify-content: center;
  padding: 16px 0;
}

.arch-line {
  width: 2px;
  height: 24px;
  background: var(--border-warm);
}

/* ============================================
   Flow Diagram
   ============================================ */

.flow-diagram {
  margin: 24px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.flow-step {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 12px 24px;
  font-size: 14px;
  color: var(--text-primary);
  text-align: center;
  min-width: 320px;
}

.flow-num {
  display: inline-block;
  width: 22px;
  height: 22px;
  background: var(--crystal-core);
  color: var(--bg-deepest);
  border-radius: 50%;
  font-size: 12px;
  font-weight: 700;
  line-height: 22px;
  text-align: center;
  margin-right: 8px;
}

.flow-sub {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

.flow-arrow {
  font-size: 18px;
  color: var(--crystal-dim);
  padding: 4px 0;
}

/* ============================================
   Decision List
   ============================================ */

.decision-list {
  display: grid;
  gap: 16px;
  margin: 16px 0;
}

.decision {
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--crystal-core);
  border-radius: 0 8px 8px 0;
}

.decision h4 {
  margin-top: 0;
}

.decision p {
  margin: 0;
  font-size: 14px;
}

/* ============================================
   Detailed List
   ============================================ */

.detailed-list {
  counter-reset: step;
  list-style: none;
  padding-left: 0;
}

.detailed-list li {
  position: relative;
  padding-left: 36px;
  margin-bottom: 12px;
}

.detailed-list li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 24px;
  height: 24px;
  background: rgba(255, 138, 0, 0.15);
  color: var(--crystal-core);
  border-radius: 50%;
  font-size: 12px;
  font-weight: 600;
  line-height: 24px;
  text-align: center;
}

/* ============================================
   Provider Cards
   ============================================ */

.provider-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 16px 0;
}

.provider-card {
  padding: 24px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  transition: border-color 0.2s;
}

.provider-card:hover {
  border-color: var(--border-warm);
}

.provider-card h3 {
  margin: 8px 0;
  font-size: 16px;
}

.provider-card p {
  font-size: 13px;
  color: var(--text-dim);
  margin: 0;
}

.provider-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
}

.provider-badge.primary {
  background: rgba(255, 138, 0, 0.12);
  color: var(--crystal-core);
  border-color: var(--border-warm);
}

/* ============================================
   API Endpoints
   ============================================ */

.endpoint {
  margin: 16px 0;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
}

.endpoint-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.endpoint p {
  margin: 0;
  font-size: 14px;
  color: var(--text-dim);
}

.method {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: 0.5px;
}

.method.get {
  background: rgba(34, 197, 94, 0.15);
  color: #22c55e;
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.method.post {
  background: rgba(59, 130, 246, 0.15);
  color: #3b82f6;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.endpoint .code-block {
  margin-top: 10px;
}

/* ============================================
   Page Footer / Navigation
   ============================================ */

.page-footer {
  max-width: 840px;
  margin: 0 auto;
  padding: 32px 48px 48px;
  border-top: 1px solid var(--border-subtle);
}

.footer-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.footer-prev,
.footer-next {
  display: flex;
  flex-direction: column;
  padding: 14px 20px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  transition: all 0.2s;
  min-width: 160px;
}

.footer-next {
  text-align: right;
  margin-left: auto;
}

.footer-prev:hover,
.footer-next:hover {
  border-color: var(--border-neon);
  background: var(--neon-glow);
}

.footer-label {
  font-size: 12px;
  color: var(--text-muted);
}

.footer-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--neon-cyan);
  margin-top: 2px;
}

.footer-meta {
  text-align: center;
}

.footer-meta p {
  font-size: 13px;
  color: var(--text-muted);
}

/* ============================================
   Roadmap
   ============================================ */

.roadmap {
  position: relative;
  margin: 24px 0;
  padding-left: 32px;
}

.roadmap::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--crystal-core), var(--crystal-dim), var(--border-subtle));
}

.roadmap-phase {
  position: relative;
  margin-bottom: 32px;
}

.roadmap-phase:last-child {
  margin-bottom: 0;
}

.roadmap-marker {
  position: absolute;
  left: -32px;
  top: 4px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 3px solid var(--border-subtle);
  background: var(--bg-base);
  z-index: 1;
}

.roadmap-marker.done {
  border-color: #22c55e;
  background: rgba(34, 197, 94, 0.2);
  box-shadow: 0 0 10px rgba(34, 197, 94, 0.3);
}

.roadmap-marker.next {
  border-color: var(--crystal-core);
  background: rgba(255, 138, 0, 0.2);
  box-shadow: 0 0 10px rgba(255, 138, 0, 0.3);
}

.roadmap-marker.planned {
  border-color: var(--text-muted);
  background: rgba(255, 255, 255, 0.05);
}

.roadmap-content {
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
}

.roadmap-content h3 {
  margin-top: 4px;
  margin-bottom: 8px;
}

.roadmap-content p {
  font-size: 14px;
  color: var(--text-dim);
}

.roadmap-content ul {
  margin-bottom: 0;
}

.roadmap-content li {
  font-size: 14px;
  color: var(--text-dim);
}

.roadmap-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
}

/* Label color based on marker state, not position */
.roadmap-marker.done + .roadmap-content .roadmap-label {
  background: rgba(34, 197, 94, 0.12);
  color: #22c55e;
  border-color: rgba(34, 197, 94, 0.3);
}

.roadmap-marker.next + .roadmap-content .roadmap-label {
  background: rgba(255, 138, 0, 0.12);
  color: var(--crystal-core);
  border-color: var(--border-warm);
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 1024px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .provider-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .requirements-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .sidebar-toggle {
    display: block;
  }

  .sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 280px;
    height: calc(100vh - var(--header-height));
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    z-index: 50;
    background: var(--bg-base);
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.5);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .sidebar .sidebar-inner {
    padding-bottom: 80px;
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .page {
    padding: 24px 16px 40px;
  }

  .page-header {
    margin-bottom: 24px;
    padding-bottom: 16px;
  }

  .page-header h1 {
    font-size: 24px;
  }

  .subtitle {
    font-size: 14px;
  }

  h2 {
    font-size: 19px;
    margin-top: 28px;
    margin-bottom: 12px;
  }

  h3 {
    font-size: 16px;
    margin-top: 20px;
  }

  /* Header — hide search in header, move to sidebar */
  .header-center {
    display: none;
  }

  .search-shortcut {
    display: none;
  }

  /* Search box inside sidebar on mobile */
  .sidebar .mobile-search {
    display: block;
    padding: 8px 12px 12px;
    border-bottom: 1px solid var(--border-subtle);
    margin-bottom: 8px;
  }

  .sidebar .mobile-search .search-box {
    max-width: 100%;
  }

  .logo-text {
    font-size: 14px;
  }

  .logo-badge {
    font-size: 10px;
    padding: 1px 6px;
  }

  /* Hero */
  .hero-banner {
    padding: 28px 16px;
    border-radius: 12px;
    margin-bottom: 24px;
  }

  .hero-banner h2 {
    font-size: 20px;
  }

  .hero-banner p {
    font-size: 14px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    justify-content: center;
  }

  /* Cards */
  .card-grid,
  .card-grid.cols-2 {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .card {
    padding: 18px;
  }

  /* Provider cards */
  .provider-cards {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  /* Requirements */
  .requirements-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  /* Tables — horizontal scroll */
  .data-table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
    font-size: 13px;
  }

  .data-table th,
  .data-table td {
    padding: 8px 10px;
  }

  /* Code blocks */
  .code-block {
    border-radius: 8px;
  }

  pre {
    padding: 12px;
    font-size: 12px;
  }

  .code-header {
    padding: 6px 12px;
  }

  /* Info boxes */
  .info-box {
    padding: 14px 16px;
    gap: 10px;
    border-radius: 8px;
  }

  .info-box p {
    font-size: 13px;
  }

  /* Steps */
  .step {
    gap: 12px;
  }

  .step-number {
    width: 30px;
    height: 30px;
    font-size: 13px;
  }

  .step::before {
    left: 14px;
    top: 36px;
  }

  .step-content h3 {
    font-size: 15px;
  }

  .step-content p {
    font-size: 13px;
  }

  /* Architecture diagram */
  .arch-diagram {
    padding: 20px 16px;
    border-radius: 10px;
  }

  .arch-row {
    flex-direction: column;
    gap: 12px;
  }

  .arch-box {
    min-width: auto;
    width: 100%;
    padding: 16px;
  }

  .arch-arrow {
    transform: rotate(90deg);
    font-size: 20px;
  }

  /* Flow diagram */
  .flow-step {
    min-width: auto;
    width: 100%;
    padding: 10px 16px;
    font-size: 13px;
  }

  .flow-sub {
    font-size: 11px;
  }

  /* Decision list */
  .decision {
    padding: 14px 16px;
  }

  .decision p {
    font-size: 13px;
  }

  /* Detailed list */
  .detailed-list li {
    padding-left: 32px;
    font-size: 14px;
  }

  .detailed-list li::before {
    width: 22px;
    height: 22px;
    font-size: 11px;
    line-height: 22px;
  }

  /* Endpoints */
  .endpoint {
    padding: 14px 16px;
  }

  .endpoint-header {
    flex-wrap: wrap;
    gap: 8px;
  }

  .endpoint-header code {
    font-size: 13px;
    word-break: break-all;
  }

  /* Roadmap */
  .roadmap {
    padding-left: 28px;
  }

  .roadmap-marker {
    width: 20px;
    height: 20px;
    left: -28px;
    top: 6px;
  }

  .roadmap-content {
    padding: 14px 16px;
  }

  .roadmap-content h3 {
    font-size: 15px;
  }

  .roadmap-content li {
    font-size: 13px;
  }

  /* Footer nav */
  .footer-nav {
    flex-direction: column;
    gap: 10px;
  }

  .footer-next {
    text-align: left;
  }

  .page-footer {
    padding: 24px 16px 36px;
  }
}

/* ---- Extra small (< 400px) ---- */
@media (max-width: 400px) {
  .page {
    padding: 16px 12px 32px;
  }

  .page-header h1 {
    font-size: 21px;
  }

  .hero-banner {
    padding: 24px 12px;
  }

  .hero-banner h2 {
    font-size: 18px;
  }

  .btn {
    padding: 8px 14px;
    font-size: 13px;
  }

  .card {
    padding: 14px;
  }

  .card h3 {
    font-size: 15px;
  }

  pre {
    padding: 10px;
    font-size: 11px;
  }

  .method {
    font-size: 11px;
    padding: 2px 6px;
  }
}