#ci-popup-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.7);
    z-index: 10000;
    justify-content: center;
    align-items: center;
}
#ci-popup-content {
    position: relative;
    background: #fff;
    padding: 0;
    max-width: 90%;
    max-height: 90%;
    box-shadow: 0 5px 15px rgba(0,0,0,0.5);
}
#ci-popup-content img {
    display: block;
    max-width: 100%;
    height: auto;
}
#ci-popup-close {
    position: absolute;
    top: -15px;
    right: -15px;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: #000;
    color: #fff;
    font-size: 20px;
    border: 2px solid #fff;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    line-height: 1;
}