**style.css**

```css
*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:Arial, sans-serif;
}

html{
    scroll-behavior:smooth;
}

body{
    background:#f5f5f5;
    color:#333;
}

/* HEADER */

header{
    background:#0f7a36;
    color:white;
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:20px 8%;
    position:sticky;
    top:0;
    z-index:1000;
}

.logo{
    font-size:24px;
    font-weight:bold;
}

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

nav ul li{
    margin-left:30px;
}

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

/* HERO */

.hero{
    min-height:90vh;
    background:linear-gradient(
    rgba(0,0,0,0.6),
    rgba(0,0,0,0.6)),
    url("images/hero.jpg")
    center/cover;
    display:flex;
    justify-content:center;
    align-items:center;
    text-align:center;
    color:white;
    padding:30px;
}

.hero h1{
    font-size:50px;
    margin-bottom:20px;
}

.hero h2{
    font-size:32px;
    margin-bottom:15px;
}

.hero h3{
    margin-bottom:20px;
}

.hero p{
    max-width:700px;
    margin:auto;
    line-height:1.8;
}

.btn{
    display:inline-block;
    margin-top:30px;
    padding:15px 35px;
    background:#0f7a36;
    color:white;
    text-decoration:none;
    border-radius:50px;
}

/* ABOUT */

.about{
    padding:80px 8%;
    text-align:center;
    background:white;
}

.about h2{
    color:#0f7a36;
    font-size:40px;
    margin-bottom:20px;
}

.about-text{
    max-width:900px;
    margin:auto;
    line-height:1.8;
}

.about-boxes{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
    gap:30px;
    margin-top:50px;
}

.box{
    background:#f7f7f7;
    padding:40px;
    border-radius:20px;
    box-shadow:0 5px 20px rgba(0,0,0,0.1);
}

.box i{
    font-size:50px;
    color:#0f7a36;
    margin-bottom:20px;
}

/* PRODUCTS */

.products{
    padding:80px 8%;
    text-align:center;
}

.products h2{
    color:#0f7a36;
    font-size:40px;
    margin-bottom:50px;
}

.product-grid{
    display:grid;
    grid-template-columns:
    repeat(auto-fit,minmax(300px,1fr));
    gap:30px;
}

.product-card{
    background:white;
    border-radius:20px;
    overflow:hidden;
    box-shadow:0 5px 20px rgba(0,0,0,0.1);
    transition:0.4s;
}

.product-card:hover{
    transform:translateY(-10px);
}

.product-card img{
    width:100%;
    height:220px;
    object-fit:cover;
}

.product-card h3{
    color:#0f7a36;
    margin:20px;
}

.product-card p{
    padding:0 20px 30px;
    line-height:1.7;
}

/* GREEN MEN ARMY */

.green-army{
    background:#0f7a36;
    color:white;
    text-align:center;
    padding:80px 8%;
}

.green-army h2{
    font-size:45px;
    margin-bottom:20px;
}

.green-army h3{
    margin-bottom:20px;
}

.green-army p{
    max-width:700px;
    margin:auto;
    line-height:1.8;
}

/* FOOTER */

footer{
    background:#111;
    color:white;
    text-align:center;
    padding:50px 8%;
}

.socials{
    margin:30px 0;
}

.socials a{
    color:white;
    font-size:28px;
    margin:0 15px;
}

/* MOBILE */

@media(max-width:768px){

    header{
        flex-direction:column;
    }

    nav ul{
        flex-wrap:wrap;
        justify-content:center;
        margin-top:20px;
    }

    nav ul li{
        margin:10px;
    }

    .hero h1{
        font-size:35px;
    }

    .hero h2{
        font-size:25px;
    }
}
```