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

.seller-card{
    text-align:center;
    border:1px solid #ddd;
    padding:20px;
    border-radius:12px;
    background:#fff;
}

.seller-card img{
    border-radius:50%;
    margin-bottom:10px;
}

.seller-card a{
    display:inline-block;
    margin-top:10px;
}