body {font-family: Arial, sans-serif; margin:0; padding:0; color:#222;}
header {background:#0b2342; color:white; padding:40px 20px; text-align:center;}
.btn-primary {display:inline-block; background:#0066ff; color:white; padding:14px 22px; border-radius:6px; text-decoration:none; font-weight:600;}
.container {width:90%; max-width:900px; margin:auto; padding:40px 0;}