:root {
  --bg: #fff;
  --text: #1a1a1a;
  --border: #eee;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1a1a;
    --text: #e5e5e5;
    --border: #333;
    --accent: #818cf8;
    --accent-hover: #a5b4fc;
  }
}

* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; }

.site-header {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.6rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.header-logo { display: flex; align-items: center; text-decoration: none; }
.header-logo img { height: 56px; width: auto; }
.header-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0 1.5rem;
}
.header-nav a {
  color: var(--text);
  text-decoration: none;
  font-size: 1.2rem;
  font-weight: 500;
}
.header-nav a:hover { color: var(--accent); }
.widget { display: inline-flex; align-items: stretch; margin-left: 0.5rem; margin-top: 0.25rem; }
.widget-lg .btn { display: inline-flex; align-items: center; gap: 0.35rem; }
.widget-lg .btn, .widget-lg .social-count {
  padding: 0.5rem 0.75rem 0.4rem;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  line-height: 1.2;
  color: var(--text);
  background: #f0f0f0;
}
.widget-lg .btn { border-top-right-radius: 0; border-bottom-right-radius: 0; border-right: none; }
.widget-lg .social-count { border-top-left-radius: 0; border-bottom-left-radius: 0; }
.widget-lg .btn:hover, .widget-lg .social-count:hover {
  background: var(--accent);
  color: #fff !important;
  border-color: var(--accent);
}
@media (prefers-color-scheme: dark) {
  .widget-lg .btn, .widget-lg .social-count { background: #2d2d2d; }
  .widget-lg .btn:hover, .widget-lg .social-count:hover { background: var(--accent); }
}
.widget-lg .octicon { flex-shrink: 0; }
.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  font-size: 1.05rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 6px;
  line-height: 1.2;
}
.btn-primary {
  background: var(--accent);
  color: #fff !important;
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-cta { margin-top: 0.25rem; margin-left: 0.5rem; }
.header-gh {
  padding: 0.4rem 0.8rem;
  background: var(--accent);
  color: #fff !important;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.85rem;
}
.header-gh:hover { background: var(--accent-hover); }
@media (max-width: 768px) {
  .header-nav { display: none; }
}

.site-main { min-height: calc(100vh - 120px); padding: 2rem 1.5rem; }
.main-inner { max-width: 900px; margin: 0 auto; }
.site-main h1 { font-size: 1.75rem; margin-top: 0; }
.site-main h2 { font-size: 1.35rem; margin-top: 1.5rem; }
.site-main h3 { font-size: 1.15rem; }
.site-main pre { background: #f5f5f5; padding: 1rem; border-radius: 6px; overflow-x: auto; }
@media (prefers-color-scheme: dark) {
  .site-main pre { background: #2a2a2a; }
}
.site-main code { font-size: 0.9em; }
.site-main a { color: var(--accent); }
.site-main a:hover { text-decoration: underline; }

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1rem 1.5rem;
  font-size: 0.85rem;
  color: #666;
}
.footer-inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.site-footer a { color: var(--accent); text-decoration: none; }

.docs-wrapper {
  display: flex;
  max-width: 1400px;
  margin: 0 auto;
  min-height: calc(100vh - 120px);
}
.docs-sidebar {
  width: 260px;
  flex-shrink: 0;
  border-right: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 65px;
  align-self: flex-start;
  max-height: calc(100vh - 80px);
  overflow-y: auto;
}
.docs-sidebar-inner { padding: 1rem 0 1rem 1rem; }
.docs-sidebar-title {
  display: block;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
  text-decoration: none;
  padding: 0.25rem 0;
  margin-bottom: 0.5rem;
}
.docs-sidebar-title:hover { color: var(--accent); }
.docs-nav-list { list-style: none; margin: 0; padding: 0; }
.docs-nav-section { margin-top: 0.75rem; }
.docs-nav-section-title {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #666;
  padding: 0.2rem 0;
}
.docs-nav-section ul { list-style: none; margin: 0; padding: 0; }
.docs-nav-section li { margin: 0; }
.docs-nav-section a {
  display: block;
  padding: 0.35rem 0.5rem;
  font-size: 0.875rem;
  color: var(--text);
  text-decoration: none;
  border-radius: 4px;
}
.docs-nav-section a:hover { background: rgba(79, 70, 229, 0.08); color: var(--accent); }
.docs-nav-section a.is-active { background: rgba(79, 70, 229, 0.12); color: var(--accent); font-weight: 500; }
@media (prefers-color-scheme: dark) {
  .docs-nav-section a:hover { background: rgba(129, 140, 248, 0.15); }
  .docs-nav-section a.is-active { background: rgba(129, 140, 248, 0.2); }
}
.docs-main { flex: 1; min-width: 0; }
.docs-main .main-inner { max-width: 820px; padding-left: 2rem; }
@media (max-width: 900px) {
  .docs-sidebar { display: none; }
  .docs-main .main-inner { padding-left: 1.5rem; }
}