:root{color-scheme:dark}body{margin:0;background:#090b0e;color:#fff;font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
main{max-width:720px;margin:0 auto;padding:48px 20px 80px}h1{font-size:34px;line-height:1.2;margin:0 0 8px}h2{font-size:22px;margin:36px 0 8px}
p,li{color:#c9d0d8}a{color:#55c7ff}.muted{color:#8b95a1;font-size:15px}header a{color:#fff;text-decoration:none;font-weight:700}