:root {
  --bg: #fafaf8;
  --text: #1a1a1a;
  --muted: #5c5c5c;
  --line: #e4e4e0;
  --card: #ffffff;
  --accent: #c2410c;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111111;
    --text: #ececec;
    --muted: #a3a3a3;
    --line: #2a2a2a;
    --card: #181818;
    --accent: #fb923c;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans", "Noto Sans Devanagari", sans-serif;
}
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
header.site { border-bottom: 1px solid var(--line); }
header.site div { max-width: 760px; margin: 0 auto; padding: 14px 16px; display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
header.site a.brand { font-weight: 700; color: var(--text); text-decoration: none; margin-right: auto; }
header.site nav a { color: var(--muted); text-decoration: none; font-size: 15px; margin-left: 14px; }
header.site nav a[aria-current] { color: var(--text); font-weight: 600; }
h1 { font-size: 32px; line-height: 1.2; margin: 8px 0 4px; }
h2 { font-size: 22px; margin: 40px 0 8px; padding-top: 8px; }
h3 { font-size: 18px; margin: 24px 0 4px; }
p.meta { color: var(--muted); margin: 0 0 24px; font-size: 15px; }
a { color: var(--accent); }
ul { padding-left: 22px; }
li { margin: 4px 0; }
.summary { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px 20px; margin: 20px 0; }
.summary ul { margin: 6px 0; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 12px 0; }
th, td { text-align: left; vertical-align: top; padding: 10px 8px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; }
nav.toc { font-size: 15px; columns: 2; column-gap: 24px; }
nav.toc a { color: var(--text); }
@media (max-width: 560px) { nav.toc { columns: 1; } h1 { font-size: 27px; } }
footer { color: var(--muted); font-size: 14px; border-top: 1px solid var(--line); margin-top: 48px; padding-top: 16px; }
.cards { display: grid; gap: 12px; margin-top: 20px; }
.cards a { display: block; background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; color: var(--text); text-decoration: none; }
.cards a span { display: block; color: var(--muted); font-size: 15px; }