body{margin:0;font-family:Segoe UI,Arial;background:#071018;color:#fff}
header{padding:80px 20px;text-align:center;background:radial-gradient(circle at top,#10354f,#071018)}
h1{font-size:64px;margin:0;color:#39e7ff}.green{color:#b6ff1f}
nav{position:sticky;top:0;background:#0b1620;padding:14px;text-align:center;border-bottom:1px solid #1f3d50}
nav a{color:#39e7ff;text-decoration:none;margin:0 14px}
.btn{display:inline-block;padding:14px 30px;background:#39e7ff;color:#001018;border-radius:8px;text-decoration:none;font-weight:bold}
section{max-width:1200px;margin:auto;padding:60px 20px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.card{background:#111b25;border:1px solid #214356;border-radius:12px;padding:20px}
footer{text-align:center;padding:40px;color:#aaa;border-top:1px solid #214356}