:root {
  color-scheme: light dark;
  --bg: #0b0d10;
  --fg: #e9eef3;
  --muted: #8a94a3;
  --card: #14181d;
  --border: #232a33;
  --accent: #4aa3ff;
}
@media (prefers-color-scheme: light) {
  :root { --bg:#fafbfc; --fg:#11161c; --muted:#5a6473; --card:#fff; --border:#e3e7ec; --accent:#0a66d6; }
}
* { box-sizing: border-box; }
html, body { margin:0; padding:0; background:var(--bg); color:var(--fg);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 56px 24px 96px; }
nav.crumbs { font-size: 13px; color: var(--muted); margin-bottom: 24px; }
nav.crumbs a { color: var(--accent); text-decoration: none; }
nav.crumbs a:hover { text-decoration: underline; }
nav.lang { float: right; }
nav.lang a { margin-left: 8px; }
h1 { font-size: 30px; letter-spacing: -0.02em; margin: 0 0 6px; }
p.updated { color: var(--muted); margin: 0 0 28px; font-size: 14px; }
h2 { font-size: 20px; margin: 36px 0 10px; letter-spacing: -0.01em; }
h3 { font-size: 16px; margin: 22px 0 8px; }
p, li { color: var(--fg); }
ul, ol { padding-left: 22px; }
li { margin: 4px 0; }
a { color: var(--accent); }
hr { border: none; border-top: 1px solid var(--border); margin: 40px 0; }
footer { margin-top: 48px; color: var(--muted); font-size: 13px; }
strong { font-weight: 600; }