:root {
  --bg: #fafaf9; --fg: #1c1917; --muted: #57534e; --line: #e7e5e4;
  --accent: #2563eb; --code-bg: #f1f5f9; --nav-bg: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14110f; --fg: #e7e5e4; --muted: #a8a29e; --line: #2b2622;
    --accent: #7aa2f7; --code-bg: #1e1a17; --nav-bg: #191512;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", sans-serif;
}
a { color: var(--accent); }
.topbar { padding: 14px 20px; border-bottom: 1px solid var(--line); background: var(--nav-bg); }
.topbar a { color: var(--fg); font-weight: 600; text-decoration: none; }
.layout { display: flex; max-width: 1100px; margin: 0 auto; }
nav { width: 270px; flex: none; padding: 24px 16px 24px 20px; }
nav ul { list-style: none; margin: 0; padding: 0; position: sticky; top: 24px; }
nav a { display: block; padding: 6px 10px; border-radius: 6px; color: var(--muted); text-decoration: none; font-size: 14px; }
nav a:hover { background: var(--code-bg); }
nav a[aria-current="page"] { background: var(--code-bg); color: var(--fg); font-weight: 600; }
main { flex: 1; min-width: 0; padding: 24px 20px 64px; max-width: 760px; }
h1 { font-size: 1.9rem; line-height: 1.25; margin: 0 0 .6em; }
h2 { font-size: 1.3rem; margin: 2em 0 .5em; padding-top: .4em; border-top: 1px solid var(--line); }
h3 { font-size: 1.1rem; margin: 1.5em 0 .4em; }
li { margin: .3em 0; }
code { background: var(--code-bg); padding: .12em .35em; border-radius: 4px; font-size: .9em; }
pre { background: var(--code-bg); padding: 14px 16px; border-radius: 8px; overflow-x: auto; }
pre code { padding: 0; background: none; }
.table-wrap { overflow-x: auto; margin: 1em 0; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; }
.pager { display: flex; justify-content: space-between; gap: 12px; margin-top: 3em; padding-top: 1.2em; border-top: 1px solid var(--line); }
.pager a { text-decoration: none; font-weight: 500; }
.pager .next { margin-left: auto; text-align: right; }
@media (max-width: 800px) {
  .layout { flex-direction: column; }
  nav { width: auto; padding: 12px 20px 0; }
  nav ul { position: static; display: flex; gap: 4px; overflow-x: auto; padding-bottom: 8px; }
  nav a { white-space: nowrap; }
}