body{
    font-family:Arial,sans-serif;
    margin:0;
    background:#f5f5f5;
    color:#333;
}

header{
    background:#0b6e4f;
    color:white;
    padding:40px;
    text-align:center;
}

nav{
    background:#084c61;
    text-align:center;
    padding:15px;
}

nav a{
    color:white;
    margin:0 15px;
    text-decoration:none;
    font-weight:bold;
}

.hero{
    text-align:center;
    padding:60px 20px;
}

.button{
    display:inline-block;
    background:#0b6e4f;
    color:white;
    padding:12px 24px;
    text-decoration:none;
    border-radius:5px;
}

.cards{
    display:flex;
    flex-wrap:wrap;
    justify-content:center;
    gap:20px;
    padding:30px;
}

.card{
    background:white;
    width:280px;
    padding:20px;
    border-radius:10px;
    box-shadow:0 2px 10px rgba(0,0,0,.1);
}

footer{
    background:#333;
    color:white;
    text-align:center;
    padding:20px;
    margin-top:40px;
}