:root { color-scheme: dark; }
* { box-sizing: border-box; }
body {
  margin: 0;
  background: #0B1220;
  color: #F1F5F9;
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
main { max-width: 680px; margin: 0 auto; padding: 48px 24px 80px; }
h1 { font-size: 32px; letter-spacing: -0.5px; margin: 12px 0 4px; }
h2 { font-size: 20px; margin-top: 32px; }
h3 { font-size: 16px; margin: 20px 0 4px; color: #C7D2FE; }
p, li { color: #C9D3E3; }
.lead { font-size: 18px; color: #93A4C0; }
.meta { color: #5D6F8D; font-size: 13px; }
a { color: #6C8CFF; }
.back { display: inline-block; margin-bottom: 24px; text-decoration: none; color: #93A4C0; }
.icon { border-radius: 22px; box-shadow: 0 10px 30px rgba(0,0,0,.4); }
.links { margin-top: 40px; }
ul { padding-left: 20px; }