.bestseller-cats {
    text-align: center;
    margin-bottom: 20px;
}
.bestseller-cat {
    display: inline-block;
    margin: 10px;
    cursor: pointer;
    text-align: center;
}
.bestseller-cat .cat-circle {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid #ddd;
    transition: border-color 0.3s;
}
.bestseller-cat img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.bestseller-cat span {
    display: block;
    margin-top: 5px;
    font-size: 14px;
    font-weight: 500;
}
.bestseller-cat.active .cat-circle {
    border-color: #ff6600; /* active border color */
}