.img-grid-selector-container {
    max-width: 1200px;
    margin: 20px auto;
    padding: 20px;
    font-family: Arial, sans-serif;
    text-align: center;
}

.img-grid-selector-grid {
    display: block;
    margin: 0 auto;
    width: 100%;
}

.img-grid-selector-item {
    position: relative;
    cursor: pointer;
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: 3px solid transparent;
    margin-bottom: 5px;
    width: calc(50% - 10px);
}

.img-grid-selector-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.img-grid-selector-item.selected {
    border-color: #007bff;
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

.img-grid-selector-image {
    width: 100%;
    height: auto;
    object-fit: contain;
    display: block;
    transition: opacity 0.2s ease;
}

.img-grid-selector-item.selected .img-grid-selector-image {
    opacity: 0.8;
}

.img-grid-selector-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 123, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.img-grid-selector-item.selected .img-grid-selector-overlay {
    opacity: 1;
}

.img-grid-selector-checkmark {
    background: #007bff;
    color: white;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: bold;
}

@media (max-width: 768px) {
    .img-grid-selector-item {
        width: calc(50% - 10px);
    }
}

@media (max-width: 480px) {
    .img-grid-selector-item {
        width: calc(100% - 10px);
    }
}