:root {
  --bg: #f6f7f9; --panel: #ffffff; --text: #1b1f24; --muted: #5a6470; --line: #dde2e8; --accent: #c2410c; --code: #eef1f4;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1216; --panel: #161b21; --text: #e6e9ed; --muted: #9aa5b1; --line: #2a323c; --accent: #fb923c; --code: #1e252d; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif; }
header { border-bottom: 1px solid var(--line); background: var(--panel); }
.bar { max-width: 820px; margin: 0 auto; padding: 14px 16px; display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.brand { font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: var(--text); text-decoration: none; }
.brand span { color: var(--accent); }
nav { margin-left: auto; display: flex; gap: 14px; }
nav a { color: var(--muted); text-decoration: none; font-size: 15px; }
nav a[aria-current="page"], nav a:hover { color: var(--accent); }
main { max-width: 820px; margin: 0 auto; padding: 28px 16px 64px; }
h1 { font-size: 30px; line-height: 1.2; margin: 0 0 6px; }
.meta { color: var(--muted); margin: 0 0 28px; font-size: 15px; }
h2 { font-size: 20px; margin: 36px 0 8px; padding-top: 8px; border-top: 1px solid var(--line); }
h3 { font-size: 17px; margin: 22px 0 6px; }
p, li { max-width: 72ch; }
ul { padding-left: 22px; }
a { color: var(--accent); }
table { border-collapse: collapse; width: 100%; margin: 12px 0; font-size: 15px; }
th, td { text-align: left; vertical-align: top; border: 1px solid var(--line); padding: 8px 10px; }
th { background: var(--code); }
.table-wrap { overflow-x: auto; }
.toc { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 14px 18px; }
.toc ol { margin: 6px 0 0; padding-left: 22px; }
.caps { text-transform: uppercase; font-size: 14px; letter-spacing: .01em; }
footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
footer .bar { justify-content: space-between; }
footer a { color: var(--muted); }