body{margin:0;font-family:Segoe UI,Arial,sans-serif;color:#222}
header{background:#052c65;color:#fff;padding:12px 5%;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0}
header img{height:60px}
nav a{color:#fff;text-decoration:none;margin:0 10px}
.hero{background:url('assets/hero.jpg') center/cover;height:80vh;color:#fff;display:flex;align-items:center}
.overlay{background:rgba(0,0,0,.55);padding:60px;width:100%}
.btn{background:#25D366;color:#fff;padding:12px 20px;border-radius:6px;text-decoration:none}
.section{padding:60px 8%}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.card{box-shadow:0 2px 10px rgba(0,0,0,.1);padding:20px;border-radius:10px}
footer{background:#052c65;color:#fff;padding:30px;text-align:center}
.whatsapp{position:fixed;right:20px;bottom:20px;background:#25D366;color:#fff;padding:15px;border-radius:50%;text-decoration:none}
img.resp{width:100%;border-radius:10px}