:root {
  --bg: #ffffff;
  --fg: #1d2330;
  --muted: #5b6475;
  --line: #e3e7ee;
  --code-bg: #f5f7fa;
  --accent: #4f7cff;
  --accent-fg: #ffffff;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12151c;
    --fg: #e6e9ef;
    --muted: #9aa3b5;
    --line: #262c38;
    --code-bg: #1a1f29;
    --accent: #7a9cff;
    --accent-fg: #0d1018;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 var(--sans);
}
a { color: var(--accent); }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }

.site-header { border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.brand { font: 700 18px var(--mono); color: var(--fg); text-decoration: none; }
.brand .prompt { color: var(--accent); }
.site-header nav a { margin-left: 20px; color: var(--muted); text-decoration: none; }
.site-header nav a:hover, .site-header nav a[aria-current] { color: var(--fg); }

.hero { padding: 64px 0 40px; border-bottom: 1px solid var(--line); }
.hero h1 { font-size: clamp(32px, 6vw, 52px); line-height: 1.1; margin: 0 0 16px; letter-spacing: -0.02em; }
.lede { font-size: 20px; color: var(--muted); max-width: 640px; margin: 0 0 24px; }
.install { display: inline-block; max-width: 100%; overflow-x: auto; margin: 0 0 24px; }
.button {
  display: inline-block; padding: 10px 18px; border-radius: 6px; margin: 0 8px 8px 0;
  background: var(--accent); color: var(--accent-fg); text-decoration: none; font-weight: 600;
  border: 1px solid var(--accent);
}
.button.ghost { background: transparent; color: var(--accent); }

.prose { min-width: 0; padding-top: 32px; padding-bottom: 48px; }
.prose > h2:first-child { margin-top: 8px; }
.prose h1 { font-size: 34px; margin: 0 0 16px; }
.prose h2 { margin-top: 40px; padding-top: 8px; }
.prose img { max-width: 100%; }
/* PDF page previews: white paper on any theme. */
.prose img[src*="images/pdf/"] { display: block; width: 520px; background: #fff; border: 1px solid var(--line); box-shadow: 0 2px 10px rgba(0, 0, 0, .12); margin: 16px 0; }
.prose table { border-collapse: collapse; display: block; overflow-x: auto; margin: 16px 0; }
.prose th, .prose td { border: 1px solid var(--line); padding: 6px 12px; text-align: left; vertical-align: top; }
.prose th { background: var(--code-bg); }

code { font: 0.9em var(--mono); background: var(--code-bg); padding: 0.1em 0.3em; border-radius: 4px; }
pre { background: var(--code-bg); border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; overflow-x: auto; line-height: 1.45; }
pre code { background: none; padding: 0; font-size: 14px; }
.highlight pre { background: var(--code-bg) !important; }

.docs { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 40px; }
.docs-nav { padding-top: 40px; position: sticky; top: 0; align-self: start; }
.docs-nav a { display: block; padding: 4px 0; color: var(--muted); text-decoration: none; }
.docs-nav a[aria-current] { color: var(--fg); font-weight: 600; }
@media (max-width: 720px) {
  .docs { grid-template-columns: 1fr; gap: 0; }
  .docs-nav { position: static; padding-top: 16px; display: flex; flex-wrap: wrap; gap: 4px 16px; border-bottom: 1px solid var(--line); padding-bottom: 12px; }
}

.cards { list-style: none; padding: 0; display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.cards a { display: block; padding: 16px; border: 1px solid var(--line); border-radius: 8px; text-decoration: none; color: var(--fg); height: 100%; }
.cards a:hover { border-color: var(--accent); }
.cards span { display: block; color: var(--muted); font-size: 14px; margin-top: 4px; }

.pager { display: flex; justify-content: space-between; flex-direction: row-reverse; margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--line); }
.pager a { text-decoration: none; }

.site-footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }