:root { --bg:#fbfaf7; --fg:#1d1d1f; --muted:#5a5a5f; --accent:#a3262a; --card:#fff; --line:#e3e0d8; }
@media (prefers-color-scheme: dark) { :root { --bg:#161617; --fg:#f2f1ee; --muted:#b4b2ac; --accent:#ff8a85; --card:#202022; --line:#35353a; } }
* { box-sizing: border-box; }
body { margin:0; background:var(--bg); color:var(--fg); font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif; }
main { max-width:42rem; margin:0 auto; padding:2rem 16px 4rem; }
h1 { font-size:1.9rem; line-height:1.2; margin:0 0 .5rem; }
h2 { font-size:1.2rem; margin:2rem 0 .5rem; }
a { color:var(--accent); }
.muted { color:var(--muted); }
.card { background:var(--card); border:1px solid var(--line); border-radius:12px; padding:1rem 1.25rem; margin:1rem 0; }
nav a { display:inline-block; min-height:44px; line-height:44px; margin-right:1rem; }
footer { margin-top:3rem; color:var(--muted); font-size:.9rem; }