:root{--bg:#f7f8f7;--fg:#1b1f1d;--muted:#5b645f;--accent:#156548;--card:#fff;--line:#dfe4e1}
@media (prefers-color-scheme:dark){:root{--bg:#121513;--fg:#e8ece9;--muted:#a3ada7;--accent:#4fc08d;--card:#1a1e1c;--line:#2c322f}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
main{max-width:720px;margin:0 auto;padding:40px 16px 64px}
header{display:flex;align-items:center;gap:14px;margin-bottom:28px}
header img{width:48px;height:48px;border-radius:10px}
header a{color:inherit;text-decoration:none;font-weight:600;font-size:1.15rem}
h1{font-size:1.8rem;line-height:1.25;margin:0 0 8px}
h2{font-size:1.15rem;margin:32px 0 8px}
p,li{color:var(--fg)}
.muted{color:var(--muted)}
a{color:var(--accent)}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px 22px;margin:20px 0}
footer{margin-top:48px;padding-top:16px;border-top:1px solid var(--line);font-size:.9rem;color:var(--muted)}
footer a{margin-right:16px}