body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#f5f7fa;color:#222}
header{background:#123b63;color:white;padding:18px 40px;display:flex;justify-content:space-between;align-items:center}
nav a{color:white;text-decoration:none;margin-left:20px;font-weight:bold}
.hero{height:420px;background:linear-gradient(rgba(18,59,99,.65),rgba(18,59,99,.65)),url('banner.jpg') center/cover;display:flex;flex-direction:column;justify-content:center;align-items:center;color:white;text-align:center;padding:20px}
.btn{background:white;color:#123b63;padding:14px 24px;border-radius:8px;text-decoration:none;font-weight:bold}
.container{max-width:1000px;margin:auto;padding:50px 20px}
.card{background:white;padding:30px;border-radius:15px;box-shadow:0 4px 15px rgba(0,0,0,.1)}
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.gallery img{width:100%;height:220px;object-fit:cover;border-radius:12px}
footer{background:#123b63;color:white;text-align:center;padding:20px;margin-top:40px}