:root { color-scheme: dark; font-family: Inter, ui-sans-serif, system-ui, sans-serif; }
* { box-sizing: border-box; }
body { min-height: 100vh; margin: 0; display: grid; place-items: center; padding: 24px; background: radial-gradient(circle at 50% 10%, #26394a, #101820 60%); color: #eef5fa; }
main { width: min(920px, 100%); }
h1 { margin: 0 0 8px; font-size: clamp(2rem, 6vw, 4.5rem); letter-spacing: -.04em; }
p { color: #b9c7d2; line-height: 1.55; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; margin-top: 28px; }
.card { display: block; padding: 26px; border: 1px solid #4f6578; border-radius: 18px; background: rgba(11, 19, 27, .74); color: inherit; text-decoration: none; transition: transform .18s ease, border-color .18s ease; }
.card:hover, .card:focus-visible { transform: translateY(-3px); border-color: #86efb6; outline: none; }
.card strong { display: block; font-size: 1.7rem; }
.card span { display: block; margin-top: 8px; color: #b9c7d2; }
.note { margin-top: 24px; font-size: .88rem; }
.note a { color: #86efb6; }