#youtube-lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.85);
    z-index: 999999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px;
}

.youtube-lightbox-inner {
    position: relative;
    width: 90%;
    max-width: 1000px;
    aspect-ratio: 16 / 9;
}

.youtube-lightbox-inner iframe {
    width: 100%;
    height: 100%;
    border: 0;
}

.youtube-lightbox-close {
    position: absolute;
    top: -40px;
    right: 0;
    color: #fff;
    font-size: 40px;
    cursor: pointer;
    line-height: 1;
}