:root { color-scheme: light dark; --fg:#1d1d1f; --muted:#6e6e73; --bg:#ffffff; --card:#f5f5f7; --accent:#e8780c; }
@media (prefers-color-scheme: dark) { :root { --fg:#f5f5f7; --muted:#a1a1a6; --bg:#141416; --card:#1f1f22; --accent:#ff9f2e; } }
* { box-sizing: border-box; }
body { margin:0; font:17px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; color:var(--fg); background:var(--bg); }
main { max-width: 760px; margin: 0 auto; padding: 48px 20px 64px; }
header { display:flex; align-items:center; gap:16px; margin-bottom:28px; }
header img { width:72px; height:72px; }
h1 { font-size: 34px; margin: 0; }
h2 { font-size: 22px; margin: 36px 0 10px; }
h3 { font-size: 17px; margin: 22px 0 4px; }
p, li { color: var(--fg); }
.muted { color: var(--muted); }
.card { background: var(--card); border-radius: 14px; padding: 18px 20px; margin: 16px 0; }
a { color: var(--accent); }
kbd { font: 600 14px -apple-system, sans-serif; border:1px solid var(--muted); border-radius:6px; padding:1px 7px; }
footer { margin-top: 48px; font-size: 14px; color: var(--muted); }