body{font-family:Arial,sans-serif}
.hero{background:#0d6efd;color:#fff;padding:80px 20px;text-align:center}
nav{background:#0d6efd;padding:10px}
nav a{color:#fff;text-decoration:none;margin:0 10px}
.container{max-width:1100px;margin:auto;padding:20px}
.card{border:1px solid #ddd;padding:15px;margin:10px;border-radius:8px}
footer{background:#0d6efd;color:#fff;text-align:center;padding:20px;margin-top:30px}
.whatsapp{position:fixed;right:20px;bottom:20px;background:#25D366;color:#fff;padding:15px;border-radius:50%;text-decoration:none}