:root {
  --bg: #fff;
  --bg-secondary: #f8f9fa;
  --fg: #1a1a1a;
  --fg-muted: #6b7280;
  --border: #e5e7eb;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --code-bg: #f3f4f6;
  --sidebar-width: 260px;
  --navbar-height: 56px;
  --fn: #7c3aed;
  --type: #0891b2;
  --kw: #be185d;
  --param: #059669;
  --str: #b45309;
  --cmt: #6b7280;
  --num: #0d9488;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f0f0f;
    --bg-secondary: #171717;
    --fg: #e5e5e5;
    --fg-muted: #9ca3af;
    --border: #2d2d2d;
    --accent: #60a5fa;
    --accent-hover: #93c5fd;
    --code-bg: #1a1a1a;
    --fn: #a78bfa;
    --type: #22d3ee;
    --kw: #f472b6;
    --param: #34d399;
    --str: #fbbf24;
    --cmt: #6b7280;
    --num: #2dd4bf;
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--navbar-height) + 1rem);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  color: var(--fg);
  background: var(--bg);
}

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

.navbar-brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--fg);
  text-decoration: none;
}

.navbar-brand:hover { color: var(--accent); }

.nav-tabs {
  display: flex;
  gap: 0.25rem;
  margin-left: 1.5rem;
}

.nav-tab {
  padding: 0.5rem 0.75rem;
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
}

.nav-tab:hover {
  color: var(--fg);
  background: var(--bg-secondary);
}

.nav-tab.active {
  color: var(--accent);
  background: var(--bg-secondary);
}

.navbar-spacer { flex: 1; }

.version-select {
  padding: 0.375rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--fg);
  font-size: 0.875rem;
  cursor: pointer;
}

.search-trigger {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-secondary);
  color: var(--fg-muted);
  font-size: 0.875rem;
  cursor: pointer;
  min-width: 200px;
}

.search-trigger:hover { border-color: var(--accent); }

.search-trigger kbd {
  margin-left: auto;
  padding: 0.125rem 0.375rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.75rem;
}

.github-link {
  display: flex;
  align-items: center;
  color: var(--fg);
  text-decoration: none;
  padding: 0.5rem;
  border-radius: 6px;
}

.github-link:hover { background: var(--bg-secondary); }
.github-link svg { width: 24px; height: 24px; }

.sidebar {
  position: fixed;
  top: var(--navbar-height);
  left: 0;
  width: var(--sidebar-width);
  height: calc(100vh - var(--navbar-height));
  overflow-y: auto;
  padding: 1rem 0;
  border-right: 1px solid var(--border);
  background: var(--bg);
}

.sidebar-section { margin-bottom: 0.5rem; }

.sidebar-section-title {
  display: flex;
  align-items: center;
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--fg-muted);
  cursor: pointer;
  user-select: none;
}

.sidebar-section-title:hover { color: var(--fg); }

.sidebar-section-title::before {
  content: "";
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  margin-right: 0.5rem;
  transition: transform 0.2s;
}

.sidebar-items { list-style: none; }

.sidebar-section.collapsed .sidebar-section-title::before { transform: rotate(-90deg); }
.sidebar-section.collapsed .sidebar-items { display: none; }

.sidebar-item {
  display: block;
  padding: 0.375rem 1rem 0.375rem 2rem;
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 0.875rem;
  border-left: 2px solid transparent;
}

.sidebar-item:hover {
  color: var(--fg);
  background: var(--bg-secondary);
}

.sidebar-item.active {
  color: var(--accent);
  border-left-color: var(--accent);
  background: var(--bg-secondary);
}

.main {
  margin-left: var(--sidebar-width);
  margin-top: var(--navbar-height);
  padding: 2rem 3rem 2rem 3rem;
  margin-right: 2rem;
}

.main.no-sidebar {
  margin-left: 0;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.sidebar.hidden {
  display: none;
}

section { margin-bottom: 3rem; }

h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

h3 {
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 0.75rem;
}

h4 {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 1rem 0 0.5rem 0;
}

code {
  font-family: "SF Mono", "Fira Code", Consolas, monospace;
  font-size: 0.9em;
  background: var(--code-bg);
  padding: 0.15em 0.4em;
  border-radius: 4px;
}

pre {
  background: var(--code-bg);
  padding: 1rem;
  border-radius: 8px;
  overflow-x: auto;
}

pre code {
  background: none;
  padding: 0;
  font-size: 0.85rem;
  white-space: pre;
}

.fn { color: var(--fn); font-weight: 600; }
.type { color: var(--type); }
.kw { color: var(--kw); }
.param { color: var(--param); }
.str { color: var(--str); }
.cmt { color: var(--cmt); font-style: italic; }
.num { color: var(--num); }

.function {
  margin-bottom: 2rem;
  padding: 1.25rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.function h3 { margin-bottom: 0.75rem; }

.function h3 code {
  font-size: 0.95rem;
  font-weight: 500;
  background: none;
  padding: 0;
}

.summary { margin-bottom: 1rem; }

.params dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.5rem 1rem;
}

.params dt { font-weight: 500; }
.params dd { color: var(--fg-muted); }
.returns p { color: var(--fg-muted); }

.examples { margin-top: 1rem; }

.example-card {
  position: relative;
  margin-top: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--code-bg);
  overflow: hidden;
}

.example-card pre {
  margin: 0;
  border-radius: 0;
  padding-right: 3rem;
}

.copy-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.2s;
}

.example-card:hover .copy-btn { opacity: 1; }
.copy-btn:hover { background: var(--bg-secondary); }
.copy-btn svg { width: 16px; height: 16px; color: var(--fg-muted); }
.copy-btn.copied svg { color: var(--param); }

.enum, .struct { margin-bottom: 2rem; }

.enum-table, .struct-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.enum-table td, .struct-table td {
  padding: 0.5rem 1rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
  text-align: left;
}

.enum-table td:first-child, .struct-table td:first-child {
  white-space: nowrap;
  width: 1%;
}
.doc { color: var(--fg-muted); }

.search-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 200;
  align-items: flex-start;
  justify-content: center;
  padding-top: 15vh;
}

.search-modal.open { display: flex; }

.search-dialog {
  width: 100%;
  max-width: 600px;
  background: var(--bg);
  border-radius: 12px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  overflow: hidden;
}

.search-input-wrap {
  display: flex;
  align-items: center;
  padding: 0 1rem;
  border-bottom: 1px solid var(--border);
}

.search-input-wrap svg { width: 20px; height: 20px; color: var(--fg-muted); }

.search-input {
  flex: 1;
  padding: 1rem;
  border: none;
  background: transparent;
  font-size: 1rem;
  color: var(--fg);
  outline: none;
}

.search-results {
  max-height: 400px;
  overflow-y: auto;
}

.search-result {
  display: block;
  padding: 0.75rem 1rem;
  color: var(--fg);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
}

.search-result:hover,
.search-result.selected { background: var(--bg-secondary); }

.search-result-title { font-weight: 500; }
.search-result-section { font-size: 0.75rem; color: var(--fg-muted); }
.search-empty { padding: 2rem; text-align: center; color: var(--fg-muted); }

.markdown h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.markdown h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 2rem 0 1rem 0;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.markdown h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 1.5rem 0 0.75rem 0;
}

.markdown h4 {
  font-size: 1rem;
  font-weight: 600;
  margin: 1.25rem 0 0.5rem 0;
  text-transform: none;
  letter-spacing: normal;
  color: var(--fg);
}

.markdown p { margin: 0.75rem 0; }

.markdown ul,
.markdown ol {
  margin: 0.75rem 0;
  padding-left: 1.5rem;
}

.markdown li { margin: 0.25rem 0; }

.markdown blockquote {
  margin: 1rem 0;
  padding: 0.5rem 1rem;
  border-left: 3px solid var(--accent);
  background: var(--bg-secondary);
  color: var(--fg-muted);
}

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

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

.markdown th {
  background: var(--bg-secondary);
  font-weight: 600;
}

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

.markdown a {
  color: var(--accent);
  text-decoration: none;
}

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

.markdown strong { font-weight: 600; }

.markdown em { font-style: italic; }

.markdown dl { margin: 0.75rem 0; }
.markdown dt { font-weight: 600; margin-top: 0.5rem; }
.markdown dd { margin-left: 1rem; color: var(--fg-muted); }

@media (max-width: 900px) {
  .sidebar { display: none; }
  .main { margin-left: 0; padding: 1.5rem; }
  .search-trigger { min-width: auto; }
  .search-trigger span { display: none; }
}