.popupgo-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100vw; height: 100vh;
    background: rgba(0,0,0,0.75);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    padding: 20px;
}
.popupgo-content {
    position: relative;
    display: inline-block;
    max-width: 700px;
    max-height: 90vh;
}
.popupgo-img {
    display: block;
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    border-radius: 10px;
    object-fit: contain;
}
.popupgo-close {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 1.8rem;
    color: white;
    background: rgba(0,0,0,0.5);
    border-radius: 50%;
    padding: 0 10px;
    cursor: pointer;
    z-index: 10000;
}