body{margin:0;font-family:Arial,sans-serif;background:#f4f8fb;color:#333}
header{background:#005b96;color:#fff;display:flex;justify-content:space-between;padding:16px 30px;position:sticky;top:0}
nav a{color:#fff;margin:0 10px;text-decoration:none}
.hero{height:70vh;background:url('https://images.unsplash.com/photo-1516549655169-df83a0774514?w=1600') center/cover}
.overlay{background:rgba(0,64,120,.65);height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;color:#fff;text-align:center}
.btn{background:#00a3ff;color:#fff;padding:12px 24px;text-decoration:none;border-radius:6px}
.container{max-width:1200px;margin:auto;padding:50px 20px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.card{background:#fff;border-radius:10px;overflow:hidden;box-shadow:0 4px 12px rgba(0,0,0,.1)}
.card img{width:100%;height:180px;object-fit:cover}
.card h3{padding:15px}
form{display:grid;gap:15px}
input,textarea{padding:12px}
button{padding:12px;background:#005b96;color:#fff;border:none}
footer{background:#003b63;color:#fff;padding:30px;text-align:center}