body{font-family:Georgia,serif;margin:0;background:#f4f5f7;line-height:1.6;}
header{background:#002147;color:#fff;padding:40px;text-align:center;}
main{max-width:1000px;background:#fff;margin:45px auto;padding:40px;
     box-shadow:0 0 12px rgba(0,0,0,0.1);border-radius:8px;}
footer{background:#002147;color:#fff;text-align:center;padding:20px;margin-top:40px;}
nav{background:#e6e9ef;padding:15px;border-bottom:2px solid #c8ccd3;}
nav ul{display:flex;flex-wrap:wrap;gap:12px;margin:0;padding:0;list-style:none;}
nav a{color:#002147;font-weight:bold;text-decoration:none;padding:6px 12px;border-radius:4px;}
nav a:hover{background:#002147;color:#fff;}