.modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.9);
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .modal-content {
            width: 80%;
            max-width: 800px;
            background: #000;
            position: relative;
        }
        .video-responsive {
            position: relative;
            padding-bottom: 56.25%;
            height: 0;
            overflow: hidden;
        }
        .video-responsive iframe {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
        }