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

body{
    font-family:'Segoe UI',sans-serif;
    background:#FDFCF8;
    color:#222;
    line-height:1.7;
}

/* HEADER */

header{
    background:#ffffff;
    position:sticky;
    top:0;
    z-index:1000;

    padding:18px 8%;

    box-shadow:
    0 2px 15px rgba(0,0,0,0.05);
}

.logo{
    font-size:32px;
    font-weight:700;
    color:#2F3E46;
}

nav{
    margin-top:12px;
}

nav a{
    text-decoration:none;
    color:#444;
    margin-right:25px;
    font-weight:600;
    transition:.3s;
}

nav a:hover{
    color:#6B8E6E;
}

/* HERO */

.hero{
    min-height:85vh;

    background:
    linear-gradient(
        rgba(0,0,0,.35),
        rgba(0,0,0,.35)
    ),
    url('assets/images/hero.jpg');

    background-size:cover;
    background-position:center;

    display:flex;
    justify-content:center;
    align-items:center;

    text-align:center;

    color:white;
    padding:40px;
}

.hero-content{
    max-width:900px;
}

.hero h1{
    font-size:72px;
    margin-bottom:20px;
    font-weight:700;
}

.hero p{
    font-size:22px;
    margin-bottom:25px;
}

/* BUTTON */

.btn{
    display:inline-block;

    padding:15px 35px;

    background:#6B8E6E;
    color:white;

    text-decoration:none;

    border-radius:50px;

    font-weight:600;

    transition:.3s;
}

.btn:hover{
    background:#59775c;
}

/* SECTIONS */

.section{
    padding:90px 8%;
}

.section h2{
    text-align:center;

    font-size:42px;

    color:#2F3E46;

    margin-bottom:20px;
}

.section-subtitle{
    text-align:center;
    max-width:700px;
    margin:auto;
    margin-bottom:50px;
    color:#666;
}

/* CARDS */

.services{
    display:grid;
    grid-template-columns:
    repeat(auto-fit,minmax(280px,1fr));

    gap:25px;
}

.card{
    background:white;

    padding:35px;

    border-radius:20px;

    box-shadow:
    0 10px 25px rgba(0,0,0,0.06);

    transition:.3s;
}

.card:hover{
    transform:translateY(-8px);
}

.card h3{
    margin-bottom:15px;
    color:#2F3E46;
}

.card p{
    color:#666;
}

/* FEATURE SECTION */

.feature{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:50px;
    align-items:center;
}

.feature img{
    width:100%;
    border-radius:20px;
}

.feature-text h3{
    font-size:32px;
    margin-bottom:15px;
    color:#2F3E46;
}

/* CONTACT BOX */

.contact-box{
    background:white;

    padding:35px;

    border-radius:20px;

    max-width:700px;

    margin:auto;

    box-shadow:
    0 10px 25px rgba(0,0,0,0.06);
}

/* FORMS */

form{
    max-width:800px;
    margin:auto;
}

input,
textarea,
select{

    width:100%;

    padding:16px;

    border:1px solid #ddd;

    border-radius:12px;

    margin:10px 0;
}

input:focus,
textarea:focus{
    outline:none;
    border-color:#6B8E6E;
}

button{
    background:#6B8E6E;
    color:white;

    border:none;

    padding:15px 35px;

    border-radius:50px;

    cursor:pointer;
}

button:hover{
    background:#59775c;
}

/* FOOTER */

footer{
    background:#2F3E46;
    color:white;

    text-align:center;

    padding:35px;
}

/* MOBILE */

@media(max-width:768px){

.hero h1{
    font-size:42px;
}

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

.feature{
    grid-template-columns:1fr;
}

.section h2{
    font-size:32px;
}

nav a{
    display:inline-block;
    margin:6px 10px;
}
}
```