body{background:#0a1428;color:white;font-family:Arial;margin:0;padding:0;}
header{background:#0d1b33;padding:10px;display:flex;align-items:center;}
.logo{height:60px;margin-right:20px;}
nav a{color:white;margin:0 10px;text-decoration:none;}
.content{padding:20px;}