body{margin:0;font-family:Segoe UI,Arial}
header{background:#00332c;color:white;padding:1.5em}
nav{background:#e0f2f1;padding:1em}
nav a{margin-right:1em;color:#004d40;text-decoration:none;font-weight:bold}
#map{height:500px;margin:1em}
footer{background:#004d40;color:white;padding:1em;text-align:center}