@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --bg: #080808;
  --bg-surface: #0e0e0e;
  --bg-elevated: #141414;
  --bg-highlight: #1a1a1a;
  --border: #1e1e1e;
  --border-mid: #2a2a2a;
  --red: #dc2626;
  --red-bright: #ef4444;
  --red-dim: rgba(220,38,38,0.12);
  --green: #22c55e;
  --yellow: #eab308;
  --blue: #3b82f6;
  --text: #f0f0f0;
  --text-secondary: #a0a0a0;
  --text-muted: #606060;
  --mono: 'JetBrains Mono', 'Cascadia Code', monospace;
  --sans: 'Inter', -apple-system, sans-serif;
  color-scheme: dark;
}

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

html { height: 100%; scroll-behavior: smooth; }

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

a { color: var(--red-bright); text-decoration: none; transition: color 0.15s; }
a:hover { color: #f87171; }

::selection { background: var(--red-dim); color: var(--text); }
::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #2a2a2a; border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: var(--red); }

/* ─── Layout ─────────────────────────────────────────────────────────────── */

.docs-shell {
  display: grid;
  grid-template-rows: 56px 1fr;
  grid-template-columns: 280px 1fr;
  height: 100vh;
  overflow: hidden;
}

.docs-header {
  grid-column: 1 / -1;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
  z-index: 100;
}

.docs-sidebar {
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 16px 0;
  grid-row: 2;
}

.docs-main {
  overflow-y: auto;
  grid-row: 2;
  display: flex;
  justify-content: center;
}

.docs-content {
  max-width: 820px;
  width: 100%;
  padding: 40px 48px 80px;
}

/* ─── Header ─────────────────────────────────────────────────────────────── */

.docs-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.05em;
  color: var(--text);
  text-decoration: none;
  flex-shrink: 0;
}

.docs-logo img { height: 28px; }
.docs-logo .red { color: var(--red); }

.docs-badge {
  font-size: 10px;
  font-family: var(--mono);
  padding: 2px 8px;
  border: 1px solid var(--border-mid);
  border-radius: 3px;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.docs-search {
  flex: 1;
  max-width: 400px;
  position: relative;
}

.docs-search input {
  width: 100%;
  padding: 7px 12px 7px 34px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--sans);
  font-size: 13px;
  border-radius: 6px;
  outline: none;
  transition: border-color 0.15s;
}

.docs-search input:focus { border-color: var(--border-mid); }

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

.docs-search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.docs-search-kbd {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 10px;
  font-family: var(--mono);
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 1px 5px;
  border-radius: 3px;
  background: var(--bg);
}

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

.docs-header-links a {
  font-size: 13px;
  color: var(--text-secondary);
  transition: color 0.15s;
}

.docs-header-links a:hover { color: var(--text); }

/* ─── Sidebar ────────────────────────────────────────────────────────────── */

.sidebar-group { margin-bottom: 8px; }

.sidebar-group-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  padding: 12px 20px 6px;
  font-family: var(--mono);
  font-weight: 600;
}

.sidebar-link {
  display: block;
  padding: 5px 20px 5px 24px;
  font-size: 13px;
  color: var(--text-secondary);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 0.12s, background 0.12s, border-color 0.12s;
  cursor: pointer;
}

.sidebar-link:hover {
  color: var(--text);
  background: var(--bg-elevated);
}

.sidebar-link.active {
  color: var(--red-bright);
  border-left-color: var(--red);
  background: var(--red-dim);
}

.sidebar-link.child {
  padding-left: 36px;
  font-size: 12px;
}

/* ─── Content typography ─────────────────────────────────────────────────── */

.docs-content h1 {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
  color: var(--text);
  font-family: var(--sans);
}

.docs-content .subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.6;
}

.docs-content h2 {
  font-size: 22px;
  font-weight: 600;
  margin: 40px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

.docs-content h3 {
  font-size: 17px;
  font-weight: 600;
  margin: 28px 0 12px;
  color: var(--text);
}

.docs-content h4 {
  font-size: 15px;
  font-weight: 600;
  margin: 20px 0 8px;
  color: var(--text-secondary);
}

.docs-content p {
  margin: 0 0 16px;
  color: var(--text-secondary);
}

.docs-content ul, .docs-content ol {
  margin: 0 0 16px;
  padding-left: 24px;
  color: var(--text-secondary);
}

.docs-content li { margin: 4px 0; }
.docs-content li::marker { color: var(--text-muted); }

.docs-content strong { color: var(--text); font-weight: 600; }
.docs-content em { font-style: italic; }

.docs-content code {
  font-family: var(--mono);
  font-size: 13px;
  background: var(--bg-elevated);
  padding: 2px 6px;
  border-radius: 3px;
  border: 1px solid var(--border);
  color: var(--red-bright);
}

.docs-content pre {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 16px 20px;
  margin: 0 0 20px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--text);
}

.docs-content pre code {
  background: none;
  border: none;
  padding: 0;
  color: inherit;
  font-size: inherit;
}

.docs-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 20px;
  font-size: 14px;
}

.docs-content th {
  text-align: left;
  padding: 10px 14px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-weight: 600;
  font-size: 13px;
}

.docs-content td {
  padding: 10px 14px;
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

.docs-content tr:hover td { background: var(--bg-elevated); }

.docs-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 32px 0;
}

.docs-content blockquote {
  border-left: 3px solid var(--red);
  padding: 12px 20px;
  margin: 0 0 16px;
  background: var(--red-dim);
  border-radius: 0 6px 6px 0;
  color: var(--text-secondary);
}

.docs-content blockquote p:last-child { margin-bottom: 0; }

.docs-content img {
  max-width: 100%;
  border-radius: 6px;
  border: 1px solid var(--border);
  margin: 8px 0 16px;
}

/* ─── Callout boxes ──────────────────────────────────────────────────────── */

.callout {
  padding: 14px 18px;
  border-radius: 6px;
  margin: 0 0 20px;
  font-size: 14px;
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.callout-icon { flex-shrink: 0; margin-top: 2px; }

.callout.info {
  background: rgba(59,130,246,0.08);
  border: 1px solid rgba(59,130,246,0.25);
  color: #93c5fd;
}

.callout.warning {
  background: rgba(234,179,8,0.08);
  border: 1px solid rgba(234,179,8,0.25);
  color: #fde047;
}

.callout.danger {
  background: rgba(220,38,38,0.08);
  border: 1px solid rgba(220,38,38,0.25);
  color: #fca5a5;
}

.callout.success {
  background: rgba(34,197,94,0.08);
  border: 1px solid rgba(34,197,94,0.25);
  color: #86efac;
}

/* ─── Feature cards ──────────────────────────────────────────────────────── */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
  margin: 0 0 24px;
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 18px 20px;
  transition: border-color 0.15s;
}

.feature-card:hover { border-color: var(--border-mid); }

.feature-card h4 {
  margin: 0 0 6px;
  font-size: 14px;
  color: var(--text);
}

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

/* ─── Page navigation ────────────────────────────────────────────────────── */

.page-nav {
  display: flex;
  gap: 16px;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.page-nav a {
  flex: 1;
  padding: 14px 18px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  text-decoration: none;
  transition: border-color 0.15s;
}

.page-nav a:hover { border-color: var(--border-mid); }

.page-nav .label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--mono);
}

.page-nav .title {
  font-size: 14px;
  color: var(--text);
  margin-top: 4px;
}

.page-nav .next { text-align: right; }

/* ─── Search modal ───────────────────────────────────────────────────────── */

.search-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 1000;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 120px;
}

.search-modal {
  background: var(--bg-surface);
  border: 1px solid var(--border-mid);
  border-radius: 8px;
  width: 520px;
  max-height: 400px;
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(0,0,0,0.5);
}

.search-modal input {
  width: 100%;
  padding: 14px 18px;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-size: 15px;
  font-family: var(--sans);
  outline: none;
}

.search-results {
  overflow-y: auto;
  max-height: 340px;
}

.search-result {
  display: block;
  padding: 10px 18px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  border-bottom: 1px solid var(--border);
  transition: background 0.1s;
  cursor: pointer;
}

.search-result:hover, .search-result.active {
  background: var(--bg-highlight);
  color: var(--text);
}

.search-result .group {
  font-size: 10px;
  color: var(--text-muted);
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ─── Mobile ─────────────────────────────────────────────────────────────── */

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

@media (max-width: 900px) {
  .docs-shell { grid-template-columns: 1fr; }
  .docs-mobile-toggle { display: flex; }
  .docs-sidebar {
    position: fixed;
    top: 56px;
    left: 0;
    bottom: 0;
    width: 280px;
    z-index: 200;
    transform: translateX(-100%);
    transition: transform 0.2s ease;
  }
  .docs-sidebar.open { transform: translateX(0); }
  .docs-content { padding: 24px 20px 60px; }
  .docs-search { display: none; }
  .docs-search-kbd { display: none; }
  .feature-grid { grid-template-columns: 1fr; }
  .page-nav { flex-direction: column; }
}