*{margin:0;padding:0;box-sizing:border-box;font-family:Arial,sans-serif}
.topbar{background:#0a5a34;color:#fff;padding:10px;text-align:center}
.navbar{display:flex;justify-content:space-between;align-items:center;padding:15px 40px;background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.1)}
.navbar ul{display:flex;list-style:none;gap:20px}
.hero{height:80vh;background:linear-gradient(rgba(0,0,0,.45),rgba(0,0,0,.45)),url('../images/hero.jpg') center/cover;display:flex;align-items:center}
.overlay{color:#fff;padding:60px}
.overlay h1{font-size:52px}
.btn{display:inline-block;margin-top:20px;background:#0a5a34;color:#fff;padding:12px 24px;border-radius:6px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;padding:40px}
.card{padding:30px;background:#fff;border-radius:12px;box-shadow:0 2px 8px rgba(0,0,0,.1);text-align:center}
footer{background:#0a5a34;color:#fff;text-align:center;padding:20px}