:root {
  --navy: #1f3a5f;
  --navy-dark: #172c48;
  --orange: #f07a1a;
  --bg: #ffffff;
  --bg-soft: #f4f6f9;
  --text: #1d2430;
  --text-muted: #5a6474;
  --border: #d9dee6;
  --link: #1f5fa8;
  --code-bg: #eef1f5;
  --radius: 8px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "Cascadia Code", Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11161f;
    --bg-soft: #18202c;
    --text: #e3e8ef;
    --text-muted: #9aa5b5;
    --border: #2c3645;
    --link: #7fb4ff;
    --code-bg: #1f2937;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

a { color: var(--link); }

/* ---------- Header / footer ---------- */

.site-header {
  background: var(--navy);
  text-align: center;
}
.site-header img {
  display: block;
  margin: 0 auto;
  max-width: 100%;
  height: auto;
}
.site-header--compact img {
  width: auto;
  height: 96px;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 24px 16px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}
.site-footer p { margin: 4px 0; }

/* ---------- Home page ---------- */

.home {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 16px 48px;
}
.home h2 {
  margin-top: 48px;
  padding-bottom: 8px;
  border-bottom: 3px solid var(--orange);
  display: inline-block;
}
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}
.card {
  display: block;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-soft);
  color: inherit;
  text-decoration: none;
}
a.card:hover { border-color: var(--navy); }
.card h3 { margin: 0 0 8px; color: var(--link); }
.card p { margin: 0; color: var(--text-muted); }

/* ---------- 404 page ---------- */

.not-found { text-align: center; }
.not-found .cards { text-align: left; margin-top: 32px; }
.not-found .not-found-code {
  margin: 16px 0 0;
  font-size: 4rem;
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
}
.not-found h1 { margin: 8px 0 16px; }
.not-found > p { color: var(--text-muted); max-width: 560px; margin-left: auto; margin-right: auto; }

/* ---------- Docs layout ---------- */

.docs-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  max-width: 1200px;
  margin: 0 auto;
}
.docs-sidebar {
  border-right: 1px solid var(--border);
  padding: 24px 16px;
  font-size: 0.92rem;
}
.docs-sidebar nav {
  position: sticky;
  top: 16px;
  max-height: calc(100vh - 32px);
  overflow-y: auto;
}
.docs-sidebar ul { list-style: none; margin: 0 0 24px; padding: 0; }
.docs-sidebar li a {
  display: block;
  padding: 4px 8px;
  border-radius: 4px;
  color: var(--text);
  text-decoration: none;
}
.docs-sidebar li a:hover { background: var(--bg-soft); }
.docs-sidebar li a[aria-current="page"] {
  background: var(--navy);
  color: #fff;
}
.docs-sidebar .toc a { color: var(--text-muted); }
.nav-heading {
  margin: 0 0 8px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.docs-content {
  padding: 24px 40px 48px;
  min-width: 0;
  overflow-wrap: break-word;
}
.docs-content h1 { margin-top: 0; }
.docs-content h2 {
  margin-top: 2.2em;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}
.docs-content h1, .docs-content h2, .docs-content h3, .docs-content h4 { scroll-margin-top: 16px; }

.docs-content code {
  font-family: var(--mono);
  font-size: 0.9em;
  background: var(--code-bg);
  padding: 1px 5px;
  border-radius: 4px;
  overflow-wrap: anywhere;
}
.docs-content pre {
  background: var(--code-bg);
  padding: 12px 16px;
  border-radius: var(--radius);
  overflow-x: auto;
}
.docs-content pre code { background: none; padding: 0; }

.docs-content img { max-width: 100%; height: auto; }

.table-wrap { overflow-x: auto; margin: 16px 0; }
.docs-content table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.93rem;
}
.docs-content th, .docs-content td {
  border: 1px solid var(--border);
  padding: 6px 10px;
  text-align: left;
  vertical-align: top;
}
.docs-content th { background: var(--bg-soft); }

.pager {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.pager a {
  display: block;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
}
.pager a:hover { border-color: var(--navy); }
.pager a span {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.pager .next { text-align: right; margin-left: auto; }

@media (max-width: 800px) {
  .site-header--compact img { height: 64px; }
  .docs-layout { grid-template-columns: minmax(0, 1fr); }
  .docs-sidebar {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .docs-sidebar nav { position: static; max-height: none; }
  .docs-sidebar .toc, .docs-sidebar .toc-heading { display: none; }
  .docs-content { padding: 24px 16px 40px; }
}