:root {
  --ground: #f1f2f2; --surface: #ffffff; --ink: #16191c; --muted: #5a6168; --line: #d3d8da; --accent: #b98300;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --ground: #111315; --surface: #1a1d20; --ink: #e9ecee; --muted: #9aa3ab; --line: #2e3338; --accent: #f5c22b; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--ground); color: var(--ink); font: 17px/1.6 -apple-system, "Segoe UI", Roboto, sans-serif; padding: 0 16px 64px; }
main { max-width: 720px; margin: 0 auto; }
header { display: flex; align-items: center; gap: 14px; padding: 36px 0 8px; }
header img { width: 56px; height: 56px; border-radius: 13px; }
header a { color: inherit; text-decoration: none; font-weight: 800; font-size: 22px; letter-spacing: -0.01em; }
nav { display: flex; gap: 18px; font-size: 15px; margin-bottom: 24px; }
nav a { color: var(--muted); }
h1 { font-size: 32px; line-height: 1.2; margin: 16px 0 8px; }
h2 { font-size: 21px; margin: 36px 0 8px; }
p, li { max-width: 66ch; }
a { color: var(--accent); }
.muted { color: var(--muted); font-size: 15px; }
table { border-collapse: collapse; width: 100%; font-size: 15px; background: var(--surface); }
th, td { text-align: left; padding: 10px 12px; border: 1px solid var(--line); vertical-align: top; }
.scroll { overflow-x: auto; }
dt { font-weight: 700; margin-top: 18px; }
dd { margin: 4px 0 0; }
footer { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--line); font-size: 14px; color: var(--muted); }