:root {
  --doc-bg: #fafafa;
  --doc-text: #1a1a1a;
  --doc-muted: #555;
  --doc-border: #e0e0e0;
  --doc-code-bg: #f0f0f0;
  --doc-link: #0066cc;
  --doc-link-hover: #004499;
  --doc-sidebar-bg: #f0f2f5;
  --doc-h2-border: #ccc;
}

@media (prefers-color-scheme: dark) {
  :root {
    --doc-bg: #1a1a1a;
    --doc-text: #e8e8e8;
    --doc-muted: #aaa;
    --doc-border: #333;
    --doc-code-bg: #2a2a2a;
    --doc-link: #6eb3f7;
    --doc-link-hover: #9cc9fa;
    --doc-sidebar-bg: #252525;
    --doc-h2-border: #444;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--doc-text);
  background: var(--doc-bg);
}

.wrap {
  max-width: 900px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 4rem;
}

header {
  border-bottom: 1px solid var(--doc-border);
  padding-bottom: 1rem;
  margin-bottom: 2rem;
}

header h1 {
  margin: 0 0 0.25rem;
  font-size: 1.75rem;
  font-weight: 600;
}

header p {
  margin: 0;
  color: var(--doc-muted);
  font-size: 0.95rem;
}

nav {
  margin-bottom: 2rem;
  padding: 1rem;
  background: var(--doc-sidebar-bg);
  border-radius: 8px;
  border: 1px solid var(--doc-border);
}

nav h2 {
  margin: 0 0 0.75rem;
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--doc-muted);
}

nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

nav li {
  margin: 0.25rem 0;
}

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

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

h2 {
  margin: 2.25rem 0 1rem;
  padding-bottom: 0.35rem;
  font-size: 1.35rem;
  font-weight: 600;
  border-bottom: 1px solid var(--doc-h2-border);
}

h3 {
  margin: 1.5rem 0 0.6rem;
  font-size: 1.1rem;
  font-weight: 600;
}

p {
  margin: 0 0 1rem;
}

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

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

code, kbd {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.9em;
}

code {
  padding: 0.15em 0.4em;
  background: var(--doc-code-bg);
  border-radius: 4px;
}

pre {
  margin: 0 0 1rem;
  padding: 1rem;
  overflow-x: auto;
  background: var(--doc-code-bg);
  border-radius: 6px;
  border: 1px solid var(--doc-border);
  font-size: 0.875rem;
  line-height: 1.5;
}

pre code {
  padding: 0;
  background: none;
}

ul, ol {
  margin: 0 0 1rem;
  padding-left: 1.5rem;
}

li {
  margin: 0.25rem 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 1rem;
  font-size: 0.9rem;
}

th, td {
  padding: 0.5rem 0.75rem;
  text-align: left;
  border: 1px solid var(--doc-border);
}

th {
  background: var(--doc-sidebar-bg);
  font-weight: 600;
}

.block-note {
  margin: 1rem 0;
  padding: 0.75rem 1rem;
  background: var(--doc-sidebar-bg);
  border-left: 4px solid var(--doc-link);
  border-radius: 0 6px 6px 0;
}

.block-note p:last-child {
  margin-bottom: 0;
}

.external {
  font-size: 0.9rem;
  color: var(--doc-muted);
}

.external::after {
  content: " ↗";
}