body{font-family:Arial,Helvetica,sans-serif;margin:0;background:#ffffff;color:#111}
.container{max-width:1100px;margin:0 auto;padding:40px 20px}
header{border-bottom:1px solid #ddd;padding:20px 0}
nav a{margin-right:20px;text-decoration:none;color:#444;font-weight:600}
nav a:hover{color:#000}
h1{font-size:40px;margin:0 0 10px}
h2{margin-top:40px}
.section{padding:60px 0;border-bottom:1px solid #eee}
.button{display:inline-block;padding:12px 18px;background:#111;color:#fff;text-decoration:none;border-radius:6px;margin-top:15px}
.footer{padding:40px 0;font-size:14px;color:#777}