:root { color-scheme: light dark; --text: #1e293b; --muted: #64748b; --accent: #c2410c; --bg: #ffffff; --line: #e2e8f0; }
@media (prefers-color-scheme: dark) { :root { --text: #e2e8f0; --muted: #94a3b8; --accent: #fb923c; --bg: #0f172a; --line: #334155; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 24px 16px 64px; }
nav { font-size: 14px; color: var(--muted); padding-bottom: 16px; border-bottom: 1px solid var(--line); line-height: 2; }
h1 { font-size: 28px; line-height: 1.25; margin: 24px 0 4px; }
h2 { font-size: 18px; margin: 28px 0 6px; }
p { margin: 0 0 12px; overflow-wrap: anywhere; }
.updated { color: var(--muted); font-size: 14px; }
a { color: var(--accent); }