.card-square {
    width: 100%;
    aspect-ratio: 1 / 1; /* buat persegi */
    position: relative;
    overflow: hidden;
    background-color: #eee;
}

.card-square img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* crop otomatis */
    display: block;
}

.et_pb_slide_thumbnail {
    aspect-ratio: 1 / 1;
    background-size: cover;
    background-position: center;
}