:root{color-scheme:dark}
*{box-sizing:border-box}
body{margin:0;background:#000;color:#fff;font-family:system-ui,sans-serif;line-height:1.6}
main{max-width:720px;margin:0 auto;padding:28px 20px}
h1{font-size:2.2rem;margin:24px 0 8px}
h2{margin-top:34px;font-size:1.2rem}
p,li{color:#c8c8c8}
a{color:#fff}
.btn{display:inline-block;background:#fff;color:#000;padding:14px 26px;border-radius:28px;text-decoration:none;font-weight:700;margin:16px 8px 0 0}
.btn.alt{background:none;color:#fff;border:1px solid #555}
.card{background:#0d0d0d;border:1px solid #2a2a2a;border-radius:16px;padding:4px 16px;margin:12px 0}
nav{display:flex;gap:16px;justify-content:flex-end;font-size:.9rem}
footer{margin-top:48px;color:#8c8c8c;font-size:.85rem}