:root { color-scheme: light dark; }
* { box-sizing: border-box; }
body {
  margin: 0; padding: 32px 20px 64px;
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: #2a1e36; background: #fff6e4;
}
@media (prefers-color-scheme: dark) { body { color: #f3ecff; background: #1d1630; } }
main { max-width: 720px; margin: 0 auto; }
header { text-align: center; margin-bottom: 32px; }
h1 { font-size: 30px; margin: 0 0 6px; }
h2 { font-size: 20px; margin: 32px 0 8px; }
.sub { opacity: .7; margin: 0; }
.lang { display: inline-block; margin: 18px 6px 0; padding: 6px 14px; border-radius: 999px;
        background: rgba(127,127,127,.15); text-decoration: none; color: inherit; font-size: 14px; }
.card { background: rgba(255,255,255,.55); border-radius: 18px; padding: 4px 22px 22px; margin-top: 18px; }
@media (prefers-color-scheme: dark) { .card { background: rgba(255,255,255,.07); } }
a { color: #c2410c; }
@media (prefers-color-scheme: dark) { a { color: #ffb37a; } }
footer { text-align: center; opacity: .6; font-size: 14px; margin-top: 40px; }
ul { padding-left: 20px; }