body{font-family:Arial,sans-serif;margin:0;color:#222;}
header{background:#000;color:#fff;padding:15px;}
.container{width:90%;max-width:1100px;margin:auto;}
nav a{color:#fff;margin-left:20px;text-decoration:none;}
.hero{padding:100px 0;text-align:center;background:#f5f5f5;}
.section{padding:60px 0;}
.footer{background:#000;color:#fff;text-align:center;padding:20px;}
.btn{background:#000;color:#fff;padding:10px 20px;text-decoration:none;}