.lightbox {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    align-items: center;
    justify-content: center;
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-image {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 7px;
}

.lightbox-close {
    position: absolute;
    top: -55px;
    right: 0;
    color: #fff;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    user-select: none;
    transition: color 0.2s;
}

.lightbox-close:hover {
    color: #ccc;
}

.document-content img {
    cursor: pointer;
    transition: opacity 0.2s;
}

.document-content img:hover {
    opacity: 0.8;
}