body{font-family:Arial, sans-serif;margin:0;padding:0;background:#f9fcff;color:#333;}
header{background:#e3f2fd;padding:15px;text-align:center;}
nav a{margin:0 10px;text-decoration:none;color:#0277bd;font-weight:bold;}
.hero{padding:60px;text-align:center;}
footer{text-align:center;padding:20px;background:#e3f2fd;}