:root{--fg:#1b1b1b;--muted:#5a5a5a;--accent:#2a5bd7;--bg:#fff}
@media (prefers-color-scheme:dark){:root{--fg:#ececec;--muted:#a5a5a5;--accent:#8fb0ff;--bg:#121212}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 -apple-system,system-ui,Segoe UI,Roboto,sans-serif}
main{max-width:720px;margin:0 auto;padding:3rem 1.25rem 4rem}h1{font-size:2rem;margin:0 0 .25rem}h2{font-size:1.2rem;margin-top:2rem}
p,li{color:var(--fg)}.muted{color:var(--muted)}a{color:var(--accent)}nav{margin-bottom:2.5rem;font-size:.95rem}nav a{margin-right:1.2rem}
footer{margin-top:3rem;font-size:.9rem;color:var(--muted);border-top:1px solid #8884;padding-top:1rem}
.brand a{display:flex;align-items:center;gap:.6rem;text-decoration:none;color:var(--fg);font-weight:600;font-size:1.1rem;margin-bottom:1rem}.brand img{border-radius:9px}