body {font-family: Arial; margin:0;}
header {background:#0B3C5D; color:white; padding:20px;}
nav a {color:white; margin-right:15px; text-decoration:none;}
.hero {background:#1ABC9C; color:white; padding:60px; text-align:center;}
.btn {background:#0B3C5D; color:white; padding:10px 20px; text-decoration:none;}
section {padding:40px;}
footer {background:#0B3C5D; color:white; text-align:center; padding:20px;}