body{font-family:Arial;background:#f5f7fa;margin:0}
header{background:#0a2540;color:#fff;padding:15px}
nav a{color:#fff;margin-right:15px;text-decoration:none}
.hero{padding:60px;text-align:center;background:#144272;color:#fff}
.btn{background:#25d366;color:#fff;padding:12px 20px;text-decoration:none}
footer{text-align:center;padding:15px;background:#0a2540;color:#fff}
.sticky{position:fixed;bottom:0;width:100%;display:flex;justify-content:space-around;background:#0a2540}
.sticky a{color:#fff;padding:10px;text-decoration:none}
