:root{font-family:Inter,system-ui,-apple-system,sans-serif;color:#e9efff;background:#0b1220}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at 80% 0%,#263f73 0%,#0b1220 55%)}header,main,footer{max-width:980px;margin:auto;padding:24px}header{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}nav{display:flex;gap:18px;flex-wrap:wrap}a{color:#80c9ff;text-decoration:none}a:hover{text-decoration:underline}.brand{font-size:1.25rem;font-weight:800;color:white}.hero{padding:70px 0 40px}h1{font-size:clamp(2.2rem,6vw,4.4rem);line-height:1.08;margin:12px 0}h2{margin-top:35px}.lead{font-size:1.2rem;color:#b9c7e0;max-width:650px;line-height:1.6}.eyebrow{color:#82d8cd;font-weight:700;letter-spacing:.12em;text-transform:uppercase}.button{display:inline-block;background:#83d8ff;color:#0b1220;padding:12px 20px;border-radius:10px;font-weight:750;margin-top:18px}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}.card{background:#17243b;border:1px solid #314461;border-radius:16px;padding:22px;line-height:1.6}.card h3{margin-top:0}footer{color:#aebed9;border-top:1px solid #314461;margin-top:50px}.muted{color:#b9c7e0}button{background:#83d8ff;color:#0b1220;border:0;padding:12px 18px;border-radius:10px;cursor:pointer;font-weight:700}#message{min-height:24px;color:#82d8cd}