```css
*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

body{
    font-family:Arial, sans-serif;
    line-height:1.6;
    color:#333;
}

.hero{
    background:linear-gradient(rgba(0,100,0,0.7),rgba(0,100,0,0.7)),
    url('https://images.unsplash.com/photo-1509062522246-3755977927d7?auto=format&fit=crop&w=1600&q=80');
    background-size:cover;
    background-position:center;
    min-height:100vh;
    color:white;
}

nav{
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:20px 8%;
}

.logo{
    font-size:28px;
    font-weight:bold;
}

nav ul{
    display:flex;
    list-style:none;
}

nav ul li{
    margin-left:20px;
}

nav ul li a{
    color:white;
    text-decoration:none;
    font-weight:bold;
}

.hero-content{
    text-align:center;
    padding-top:180px;
}

.hero-content h1{
    font-size:55px;
    margin-bottom:20px;
}

.hero-content p{
    font-size:22px;
    margin-bottom:30px;
}

.btn{
    display:inline-block;
    background:#ffd700;
    color:#000;
    padding:12px 25px;
    text-decoration:none;
    border-radius:5px;
    font-weight:bold;
}

.section{
    padding:70px 10%;
}

.section h2{
    text-align:center;
    color:#006400;
    margin-bottom:25px;
}

.light{
    background:#f4f4f4;
}

.cards{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
    gap:20px;
}

.card{
    background:white;
    padding:25px;
    text-align:center;
    border-radius:10px;
    box-shadow:0 3px 10px rgba(0,0,0,0.1);
    font-weight:bold;
}

.facility-list{
    max-width:600px;
    margin:auto;
}

.facility-list li{
    margin:12px 0;
}

.contact{
    text-align:center;
}

footer{
    background:#006400;
    color:white;
    text-align:center;
    padding:20px;
}

@media(max-width:768px){

    nav{
        flex-direction:column;
    }

    nav ul{
        margin-top:15px;
        flex-wrap:wrap;
        justify-content:center;
    }

    .hero-content h1{
        font-size:34px;
    }

    .hero-content p{
        font-size:18px;
    }
}
```