body{
    margin:0;
    background:#f5f7fb;
    font-family:Arial,sans-serif;
}

.container{
    width:90%;
    max-width:1200px;
    margin:auto;
}

header{
    background:#111827;
    color:white;
    padding:20px;
}

.hero{
    background:white;
    padding:80px 40px;
    margin-top:40px;
    border-radius:20px;
    text-align:center;
}

.btn{
    display:inline-block;
    background:#16a34a;
    color:white;
    text-decoration:none;
    padding:14px 24px;
    border-radius:10px;
    margin-top:20px;
}

.products{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:20px;
    margin-top:40px;
}

.card{
    background:white;
    padding:20px;
    border-radius:20px;
    box-shadow:0 10px 30px rgba(0,0,0,.08);
}

footer{
    margin-top:60px;
    background:#111827;
    color:white;
    padding:40px 20px;
}

@media(max-width:768px){

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

}