body{margin:0;font-family:Arial,sans-serif;background:#f4f7fb;color:#222}nav{display:flex;justify-content:space-between;align-items:center;padding:20px 8%;background:#0b8f52;color:#fff}img{max-width:100%;border-radius:12px}.hero{background:url('https://images.unsplash.com/photo-1580281657527-47f249e8f4df?auto=format&fit=crop&w=1600&q=80') center/cover;height:70vh;color:#fff}.overlay{padding:12% 8%;background:rgba(0,0,0,.45);height:100%}.btn{background:#fff;color:#0b8f52;padding:12px 18px;text-decoration:none;border-radius:8px}.grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;padding:60px 8%}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:25px;padding:40px 8%}.card{background:#fff;padding:15px;border-radius:12px;box-shadow:0 5px 15px rgba(0,0,0,.1)}footer{text-align:center;padding:30px;background:#0b8f52;color:#fff}@media(max-width:768px){.grid{grid-template-columns:1fr}.hero{height:55vh}}