:root {
  --bg-deep: #0a0a0f;
  --bg-surface: #12121a;
  --bg-card: rgba(18, 18, 26, 0.7);
  --bg-code: rgba(10, 10, 15, 0.8);
  --accent: #ff6b9d;
  --accent-glow: rgba(255, 107, 157, 0.5);
  --accent-soft: rgba(255, 107, 157, 0.12);
  --cyan: #67e8f9;
  --cyan-glow: rgba(103, 232, 249, 0.4);
  --green: #4ade80;
  --yellow: #fbbf24;
  --red: #f87171;
  --text-primary: #f5f5f7;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  --border-glow: rgba(255, 107, 157, 0.3);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Menlo', monospace;
  --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

.doc-layout {
  display: flex;
  min-height: 100vh;
}

.doc-sidebar {
  position: fixed;
  top: 0; left: 0;
  width: 280px;
  height: 100vh;
  background: rgba(10, 10, 15, 0.9);
  border-right: 1px solid var(--border-subtle);
  backdrop-filter: blur(20px);
  overflow-y: auto;
  z-index: 50;
  padding: 24px 0;
}

.doc-sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 24px 20px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 16px;
}

.doc-sidebar-logo img { width: 32px; height: 32px; }

.doc-sidebar-logo span {
  font-weight: 900;
  font-size: 18px;
}

.doc-nav-section {
  margin-bottom: 24px;
}

.doc-nav-title {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 0 24px 8px;
}

.doc-nav-link {
  display: block;
  padding: 8px 24px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  transition: all 0.2s;
  border-left: 2px solid transparent;
}

.doc-nav-link:hover {
  color: var(--accent);
  background: var(--accent-soft);
}

.doc-nav-link.active {
  color: var(--accent);
  border-left-color: var(--accent);
  background: var(--accent-soft);
}

.doc-main {
  flex: 1;
  margin-left: 280px;
  padding: 48px 64px;
  max-width: 960px;
}

.doc-header {
  margin-bottom: 48px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.doc-breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.doc-breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
}

.doc-breadcrumb a:hover { color: var(--accent); }

.doc-title {
  font-size: 36px;
  font-weight: 900;
  letter-spacing: -1px;
  margin-bottom: 12px;
}

.doc-desc {
  font-size: 16px;
  color: var(--text-secondary);
}

.doc-section {
  margin-bottom: 48px;
}

.doc-section-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 10px;
}

.doc-section-title::before {
  content: '';
  width: 4px;
  height: 22px;
  background: linear-gradient(180deg, var(--accent), #c084fc);
  border-radius: 2px;
}

.doc-subsection-title {
  font-size: 18px;
  font-weight: 700;
  margin: 32px 0 16px;
  color: var(--text-primary);
}

.doc-p {
  margin-bottom: 16px;
  color: var(--text-secondary);
  font-size: 15px;
}

.doc-p strong { color: var(--text-primary); }

.doc-ul {
  list-style: none;
  margin-bottom: 16px;
  padding-left: 0;
}

.doc-ul li {
  padding: 6px 0 6px 24px;
  position: relative;
  color: var(--text-secondary);
  font-size: 15px;
}

.doc-ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-family: var(--font-mono);
}

.doc-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
  font-size: 14px;
}

.doc-table th {
  text-align: left;
  padding: 12px 16px;
  background: var(--bg-card);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border-glow);
}

.doc-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

.doc-table td:first-child {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
}

.doc-table tr:hover td {
  background: rgba(255, 107, 157, 0.04);
}

.doc-code-block {
  background: var(--bg-code);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  margin-bottom: 24px;
  overflow: hidden;
}

.doc-code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(18, 18, 26, 0.6);
}

.doc-code-lang {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.doc-code-copy {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  cursor: pointer;
  background: none;
  border: 1px solid var(--border-subtle);
  padding: 4px 10px;
  border-radius: 6px;
  transition: all 0.2s;
}

.doc-code-copy:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.doc-code-body {
  padding: 16px 20px;
  overflow-x: auto;
}

.doc-code-body pre,
.doc-code-body code {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-primary);
  white-space: pre;
}

.doc-code-body .kw { color: var(--accent); }
.doc-code-body .str { color: var(--green); }
.doc-code-body .com { color: var(--text-muted); }
.doc-code-body .num { color: var(--yellow); }
.doc-code-body .typ { color: var(--cyan); }

.doc-note {
  padding: 16px 20px;
  background: var(--accent-soft);
  border: 1px solid var(--border-glow);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  margin-bottom: 24px;
  font-size: 14px;
  color: var(--text-secondary);
}

.doc-note strong { color: var(--accent); }

.doc-warn {
  padding: 16px 20px;
  background: rgba(251, 191, 36, 0.08);
  border: 1px solid rgba(251, 191, 36, 0.3);
  border-left: 3px solid var(--yellow);
  border-radius: 8px;
  margin-bottom: 24px;
  font-size: 14px;
  color: var(--text-secondary);
}

.doc-warn strong { color: var(--yellow); }

.doc-img {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border-subtle);
  margin-bottom: 24px;
}

.doc-img-caption {
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: -16px;
  margin-bottom: 24px;
}

.doc-badge {
  display: inline-block;
  padding: 3px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  border-radius: 100px;
  margin-right: 6px;
}

.doc-badge-accent { background: var(--accent-soft); color: var(--accent); border: 1px solid var(--border-glow); }
.doc-badge-cyan { background: rgba(103, 232, 249, 0.1); color: var(--cyan); border: 1px solid rgba(103, 232, 249, 0.3); }
.doc-badge-green { background: rgba(74, 222, 128, 0.1); color: var(--green); border: 1px solid rgba(74, 222, 128, 0.3); }
.doc-badge-yellow { background: rgba(251, 191, 36, 0.1); color: var(--yellow); border: 1px solid rgba(251, 191, 36, 0.3); }

.doc-mobile-toggle {
  display: none;
  position: fixed;
  top: 16px; left: 16px;
  z-index: 60;
  width: 40px; height: 40px;
  border-radius: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

@media (max-width: 1024px) {
  .doc-sidebar { transform: translateX(-100%); transition: transform 0.3s; }
  .doc-sidebar.open { transform: translateX(0); }
  .doc-main { margin-left: 0; padding: 48px 24px; }
  .doc-mobile-toggle { display: flex; }
}