*{box-sizing:border-box}
body{margin:0;font-family:Poppins,Arial,sans-serif;background:#f5f7f6;color:#111}
header{position:sticky;top:0;z-index:100;background:#0b3d2e;padding:14px 30px;display:flex;align-items:center;justify-content:space-between}
header img{height:42px}
nav a{color:#fff;text-decoration:none;margin-left:20px;font-weight:600}
.hero{min-height:90vh;background:linear-gradient(rgba(0,0,0,.55),rgba(0,0,0,.55)),url('assets/images/IMG_3823.jpeg') center/cover;display:flex;align-items:center;padding:60px}
.hero h1{color:#fff;font-size:52px;line-height:1.2;margin:0}
.hero p{color:#e0e0e0;font-size:22px;max-width:700px}
.btn{display:inline-block;margin-top:25px;padding:14px 28px;background:#1aa36f;color:#fff;border-radius:30px;font-weight:700;text-decoration:none}
.section{padding:80px 60px}
.section h2{font-size:42px;margin-bottom:20px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:25px}
.card{background:#fff;padding:30px;border-radius:16px;box-shadow:0 10px 30px rgba(0,0,0,.08)}
footer{background:#0b3d2e;color:#fff;padding:30px;text-align:center}
@media(max-width:768px){
.hero h1{font-size:36px}
.section{padding:60px 20px}
nav a{margin-left:12px;font-size:14px}
}