.video-popup-container {
    display: none;
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 500px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    z-index: 1050;
    overflow: hidden;
}
.video-popup-header {
    padding: 10px 15px;
    background-color: #f1f1f1;
    cursor: move;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #ddd;
}
.video-popup-header span {
    font-weight: bold;
    color: #333;
}
.close-video-popup {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    line-height: 1;
    color: #333;
}
.video-popup-content {
    position: relative;
    padding-top: 56.25%; /* 16:9 Aspect Ratio */
    height: 0;
}
.video-popup-content iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}
@media (max-width: 768px) {
    .video-popup-container {
        width: 90%;
        bottom: 10px;
        right: auto;
        left: 50%;
        transform: translateX(-50%);
    }
}