body{margin:0;font-family:Arial,sans-serif;background:#f3f4f6;color:#333}
header{background:#2f4050;color:#fff;padding:18px;text-align:center;box-shadow:0 2px 6px rgba(0,0,0,.2)}
nav{margin-top:8px}
nav a{color:#d9edf7;margin:0 10px;text-decoration:none}
.container{max-width:900px;margin:40px auto;padding:0 20px}
.paper{background:#fff;padding:40px;border-radius:8px;box-shadow:0 6px 20px rgba(0,0,0,.15)}
h1{margin-top:0;color:#2f4050}h2{color:#2f4050}
footer{text-align:center;color:#666;padding:25px;font-size:.9em}