.video-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 16px;
    padding: 16px;
}

.video-item {
    position: relative;
    width: 100%;
    padding-top: 177.77%;
    background-color: #000;
    overflow: hidden;
}

    .video-item iframe {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
    }

.video-list {
    grid-template-columns: repeat(3, 1fr);
    gap: 5px;
    padding: 5px;
}

.video-item {
    padding-top: 177.77%;
}

.fullscreen-mode {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    z-index: 9999;
    background: black;
}