body {font-family: Arial; margin:0; background:#f5f7fb;}
.container {width:90%; max-width:1100px; margin:auto;}
.navbar {background:#0b2d5c; color:white; padding:15px;}
.hero {background:#0b2d5c; color:white; padding:80px 0; text-align:center;}
.btn-primary {background:#1e88e5; color:white; padding:10px 20px; text-decoration:none; border-radius:6px;}
.btn-secondary {background:#fbc02d; padding:10px 20px; border:none; border-radius:6px;}
.simulasi {background:white; padding:40px 0; text-align:center;}
.footer {background:#0b2d5c; color:white; padding:20px; text-align:center; margin-top:40px;}
input {padding:10px; margin:10px; width:200px;}