:root { color-scheme: light; }
* { box-sizing: border-box; }
body { margin: 0; padding: 24px; background: #f7f7f5; color: #1a1a18; line-height: 1.5;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
main { max-width: 720px; margin: 10vh auto 0; }
h1 { margin-bottom: 4px; }
p { color: #6b6b66; margin-top: 0; }
.card { display: block; margin-top: 24px; padding: 18px; border: 1px solid #e5e5e0;
  border-radius: 10px; background: #fff; color: inherit; text-decoration: none; }
.card:hover { border-color: #c9c9c2; }
.card strong { display: block; color: #2c5f8a; font-size: 18px; }
.card span { display: block; color: #6b6b66; margin-top: 4px; }