.thumbnail-wrapper {
    flex: 1 1 calc(25% - 0.5rem);
    max-width: calc(25% - 0.5rem);
    border-radius: 8px;
    overflow: hidden;
}


.thumbnail-wrapper img {
    width: 100%;
    height: auto; /* maintain aspect ratio */
    max-height: 200px; /* optional, max thumbnail height */
    object-fit: contain; /* ensures full image is visible */
    display: block;
    cursor: pointer;
    transition: transform 0.3s;
}


.thumbnail-wrapper img:hover {
    transform: scale(1.05);
}

/* ------------------ */
/* Mobile Responsive */
/* ------------------ */
@media (max-width: 768px) {


    .thumbnail-wrapper {
        flex: 1 1 48%;  /* 2 per row on mobile */
        max-width: 48%;
        max-height: 120px; /* optional to limit height */
    }

    .thumbnail-wrapper img {
        width: 100%;
        height: auto;  /* keep aspect ratio */
        object-fit: contain;
    }

}