:root{--bg:#fff;--fg:#1c1c1e;--muted:#6e6e73;--accent:#e2441e}
@media (prefers-color-scheme:dark){:root{--bg:#0b1026;--fg:#f2f2f7;--muted:#a1a1aa}}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}
main{max-width:720px;margin:0 auto;padding:32px 16px 64px}
h1{font-size:28px;margin:0 0 4px}h2{font-size:20px;margin:32px 0 8px}
.muted{color:var(--muted)}a{color:var(--accent)}
header{display:flex;align-items:center;gap:12px;margin-bottom:24px}
header img{width:56px;height:56px;border-radius:13px}