:root {
  --bg: #fff;
  --bg-secondary: #fafafa;
  --text: #111;
  --text-secondary: #666;
  --text-muted: #999;
  --border: #e5e7eb;
  --link: #0070f3;
  --link-hover: #0050cc;
  --code-bg: #f3f4f6;
  --sidebar-width: 260px;
  --navbar-height: 56px;
  --content-max-width: 780px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111;
    --bg-secondary: #1a1a1a;
    --text: #eee;
    --text-secondary: #a0a0a0;
    --text-muted: #666;
    --border: #2a2a2a;
    --link: #3b82f6;
    --link-hover: #60a5fa;
    --code-bg: #1e1e1e;
  }
}

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

html {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

body {
  min-height: 100vh;
}

a {
  color: var(--link);
  text-decoration: none;
}

a:hover {
  color: var(--link-hover);
  text-decoration: underline;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--navbar-height);
  padding: 0 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}

.navbar-logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
  text-decoration: none;
}

.navbar-logo:hover {
  color: var(--text);
  text-decoration: none;
}

.navbar-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.navbar-links a {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.navbar-links a:hover {
  color: var(--text);
  text-decoration: none;
}

/* Layout */
.docs-layout {
  display: flex;
  min-height: calc(100vh - var(--navbar-height));
}

/* Sidebar */
.sidebar {
  position: sticky;
  top: var(--navbar-height);
  width: var(--sidebar-width);
  height: calc(100vh - var(--navbar-height));
  overflow-y: auto;
  padding: 1rem 0;
  border-right: 1px solid var(--border);
  flex-shrink: 0;
}

.sidebar-section {
  padding: 0.25rem 1rem;
}

.sidebar-section-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  padding: 0.25rem 0;
}

.sidebar-link {
  display: block;
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: background 0.15s, color 0.15s;
}

.sidebar-link:hover {
  background: var(--bg-secondary);
  color: var(--text);
  text-decoration: none;
}

.sidebar-link.active {
  background: var(--bg-secondary);
  color: var(--link);
  font-weight: 500;
}

.sidebar-link.nested {
  padding-left: 1.5rem;
}

/* Content */
.docs-content {
  flex: 1;
  min-width: 0;
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 2rem 2.5rem 4rem;
}

/* MDX typography */
.docs-content h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.3;
}

.docs-content h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.docs-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: 2rem;
  margin-bottom: 0.5rem;
}

.docs-content p {
  line-height: 1.75;
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

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

.docs-content li {
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}

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

.docs-content blockquote {
  border-left: 3px solid var(--border);
  padding-left: 1rem;
  margin: 1rem 0;
  color: var(--text-muted);
}

.docs-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2rem 0;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.875rem;
}