body{margin:0;font-family:Arial;background:#f4f8f4}
.header,.footer{background:#1b5e20;color:#fff;padding:20px;text-align:center}
.hero{height:80vh;background-size:cover;position:relative}
.overlay{background:rgba(0,0,0,.5);color:#fff;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center}
.btn{background:#2e7d32;color:#fff;padding:12px 24px;text-decoration:none;border-radius:6px}
.kpi{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:20px;padding:40px;background:#e8f5e9;text-align:center}