body{font-family:Arial,sans-serif;margin:0}
nav{background:#0b63d1;padding:15px}nav a{color:#fff;margin-right:15px;text-decoration:none}
header{background:linear-gradient(135deg,#0b63d1,#3cc6f3);color:#fff;padding:80px 20px;text-align:center}
section{max-width:1100px;margin:auto;padding:40px 20px}
footer{text-align:center;padding:20px;background:#eee}