body{margin:0;font-family:Arial,sans-serif;background:#111;color:#fff}
.nav{display:flex;justify-content:space-between;align-items:center;padding:15px 40px;background:#000;position:sticky;top:0}
.brand img{height:80px}
.links a{margin:0 10px;color:#fff;text-decoration:none}
.btn{background:#62b336;color:#fff;padding:12px 18px;border-radius:8px;text-decoration:none}
.secondary{background:transparent;border:2px solid #62b336}
.hero{height:70vh;background:linear-gradient(rgba(0,0,0,.6),rgba(0,0,0,.6)),url('https://images.unsplash.com/photo-1592982537447-7440770cbfc9?q=80&w=1600&auto=format&fit=crop') center/cover;display:flex;align-items:center}
.overlay{padding:60px;max-width:650px}
h1{font-size:56px;margin:0}
.section{padding:60px 40px;text-align:center}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:20px;margin-top:25px}
.card{background:#1d1d1d;padding:30px;border-radius:12px;border:1px solid #2d2d2d}
.dark{background:#181818}