:root{color-scheme:dark;font-family:system-ui,-apple-system,sans-serif;background:#081b22;color:#ecf8f5}*{box-sizing:border-box}body{margin:0;min-height:100svh;background:radial-gradient(ellipse at 80% 0,#173d40,transparent 65%)}main{max-width:900px;margin:auto;padding:72px 24px}header{display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{font-size:32px;font-weight:800;letter-spacing:-1px}nav{display:flex;gap:20px;font-size:14px}a{color:#88ebd1;text-decoration:none}a:hover{text-decoration:underline}h1{font-size:clamp(40px,8vw,72px);letter-spacing:-3px;line-height:1.05;margin:90px 0 24px}p{line-height:1.7;color:#b5c9cc;max-width:650px;font-size:18px}.card{margin-top:48px;border:1px solid #34545a;border-radius:24px;padding:28px;background:#ffffff06}.eyebrow{color:#88ebd1;font-size:13px;letter-spacing:2px;text-transform:uppercase}.button{display:inline-block;margin-top:16px;padding:12px 20px;border:1px solid #88ebd180;border-radius:40px}footer{margin-top:80px;font-size:13px;color:#89a5ab}@media(max-width:480px){main{padding:32px 20px}header{align-items:flex-start}nav{flex-direction:column;gap:8px}h1{margin-top:64px;letter-spacing:-2px}}