:root{--bg:#0e1116;--fg:#e8ecf1;--muted:#98a2b3;--accent:#9945ff;--accent2:#14f195;--card:#161b22}
@media (prefers-color-scheme: light){:root{--bg:#f7f8fa;--fg:#14171c;--muted:#5b6472;--card:#fff}}
*{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:64px 16px}
h1{font-size:2.2rem;margin:0 0 .25em;background:linear-gradient(90deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
h2{margin-top:2em}
p,li{color:var(--muted)}
.card{background:var(--card);border-radius:12px;padding:20px 24px;margin:24px 0}
footer{margin-top:48px;font-size:.9rem;color:var(--muted)}
a{color:var(--accent)}