:root{color-scheme:light dark;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background-color:#0f172a;color:#f8fafc}body{margin:0;min-height:100vh;display:flex;justify-content:center;align-items:center;background:radial-gradient(circle at top,rgba(14,116,144,.4),transparent 60%)}main.app{padding:2.5rem;max-width:640px;border-radius:1.5rem;background:#0f172acc;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid rgba(148,163,184,.3);box-shadow:0 20px 45px #0f172a59}.hero h1{font-size:2.5rem;margin-top:0;margin-bottom:.75rem}.hero p{margin-top:0;margin-bottom:1.5rem;font-size:1.1rem;color:#e2e8f0d9}.hero ul{margin:0;padding-left:1.5rem;display:grid;gap:.6rem}.hero li::marker{color:#22d3ee}