:root {
  --bg: #FAFAF8;
  --surface: #FFFFFF;
  --text: #1A1A1A;
  --text-secondary: #6B7280;
  --accent: #4338CA;
  --accent-light: #6366F1;
  --accent-dim: rgba(67,56,202,0.06);
  --border: #E5E7EB;
  --teal: #059669;
  --code-bg: #1E293B;
  --code-text: #E2E8F0;
  --sidebar-w: 260px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --mono: 'Source Code Pro', 'Fira Code', 'JetBrains Mono', monospace;
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
}

.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 1.5rem;
  z-index: 100;
  gap: 1.5rem;
}

.topbar-logo {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.topbar-logo span { color: var(--accent); }

.topbar-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-left: auto;
}

.topbar-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.15s;
}

.topbar-links a:hover { color: var(--accent); }

.topbar-badge {
  display: inline-block;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--text);
}

.menu-btn svg { width: 24px; height: 24px; }

.sidebar {
  position: fixed;
  top: 56px;
  left: 0;
  bottom: 0;
  width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 1.5rem 0;
  z-index: 50;
}

.sidebar-section {
  padding: 0 1.25rem;
  margin-bottom: 1.5rem;
}

.sidebar-section h3 {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.sidebar-section a {
  display: block;
  padding: 0.35rem 0.75rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  border-radius: 6px;
  transition: all 0.15s;
  margin-bottom: 1px;
}

.sidebar-section a:hover {
  color: var(--accent);
  background: var(--accent-dim);
}

.sidebar-section a.active {
  color: var(--accent);
  background: var(--accent-dim);
  font-weight: 600;
}

.main {
  margin-left: var(--sidebar-w);
  padding: 56px 0 0;
  min-height: 100vh;
}

.content {
  max-width: 780px;
  margin: 0 auto;
  padding: 3rem 2rem 5rem;
}

.content h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.025em;
}

.content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  letter-spacing: -0.015em;
}

.content h2:first-of-type { border-top: none; padding-top: 0; }

.content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-top: 2rem;
  margin-bottom: 0.5rem;
}

.content p { margin-bottom: 1rem; }

.content .subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.content a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.content a:hover { text-decoration: underline; }

.content ul, .content ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

.content li { margin-bottom: 0.35rem; }

.content strong { font-weight: 600; }

.content code {
  font-family: var(--mono);
  font-size: 0.875em;
  background: var(--accent-dim);
  color: var(--accent);
  padding: 2px 6px;
  border-radius: 4px;
}

.content pre {
  background: var(--code-bg);
  color: var(--code-text);
  padding: 1.25rem 1.5rem;
  border-radius: 8px;
  overflow-x: auto;
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
  line-height: 1.6;
  position: relative;
}

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

.copy-btn {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: rgba(255,255,255,0.1);
  border: none;
  color: #94A3B8;
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.75rem;
  font-family: var(--mono);
  transition: all 0.15s;
}

.copy-btn:hover { background: rgba(255,255,255,0.2); color: #fff; }

.content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.content th, .content td {
  padding: 0.65rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.content th {
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
}

.callout {
  padding: 1rem 1.25rem;
  border-radius: 8px;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
  border-left: 3px solid;
}

.callout-info {
  background: rgba(67,56,202,0.04);
  border-color: var(--accent);
}

.callout-warning {
  background: rgba(217,119,6,0.06);
  border-color: #D97706;
}

.callout-success {
  background: rgba(5,150,105,0.06);
  border-color: var(--teal);
}

.callout strong { display: block; margin-bottom: 0.25rem; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem;
  text-decoration: none;
  color: var(--text);
  transition: all 0.15s;
}

.card:hover {
  border-color: var(--accent);
  box-shadow: 0 2px 12px rgba(67,56,202,0.08);
  text-decoration: none;
}

.card-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.card h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin: 0;
}

.method {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  margin-right: 0.5rem;
}

.method-get { background: rgba(5,150,105,0.1); color: var(--teal); }
.method-post { background: rgba(67,56,202,0.1); color: var(--accent); }
.method-put { background: rgba(217,119,6,0.1); color: #D97706; }
.method-delete { background: rgba(220,38,38,0.1); color: #DC2626; }

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

.endpoint-row {
  display: flex;
  align-items: center;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--border);
}

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

.version-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--teal);
  background: rgba(5,150,105,0.08);
  padding: 2px 10px;
  border-radius: 12px;
}

@media (max-width: 768px) {
  .sidebar { display: none; }
  .sidebar.open { display: block; width: 100%; z-index: 90; }
  .main { margin-left: 0; }
  .content { padding: 2rem 1.25rem 4rem; }
  .menu-btn { display: block; }
  .card-grid { grid-template-columns: 1fr; }
  .endpoint-desc { display: none; }
}