.category-popup {
    position: absolute;
    z-index: 1000;
    background: white;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    padding: 15px;
    min-width: 400px;
    max-width: 600px;
    cursor: pointer;
    transition: box-shadow 0.2s ease;
}

.category-popup:hover {
    box-shadow: 0 6px 16px rgba(0,0,0,0.2);
    border-color: #bbb;
}

.category-popup-content {
    position: relative;
}

.category-popup-loading {
    text-align: center;
    padding: 20px;
}

.category-popup-loading img {
    width: 32px;
    height: 32px;
}

.category-popup-images {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    min-height: 100px;
}

.category-popup-image-item {
    position: relative;
    width: 100%;
    padding-bottom: 100%; /* 1:1 aspect ratio */
    overflow: hidden;
    border-radius: 4px;
    border: 1px solid #eee;
    background: #f9f9f9;
}

.category-popup-image-item img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.category-popup-image-item:hover img {
    transform: scale(1.1);
}

.category-popup-image-item a {
    display: block;
    width: 100%;
    height: 100%;
}

.category-popup-empty {
    text-align: center;
    padding: 20px;
    color: #999;
    font-size: 14px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .category-popup {
        display: none !important; /* Hide on mobile devices */
    }
}