body{font-family:Arial,Helvetica,sans-serif;margin:0;padding:0;}header{background:#0a2a66;color:#fff;padding:40px;text-align:center;}section{padding:30px;}h1,h2{color:#0a2a66;}ul{line-height:1.8;}footer{background:#222;color:#fff;text-align:center;padding:10px;} .btn{background:#fff;color:#0a2a66;padding:12px 20px;text-decoration:none;font-weight:bold;}