.video-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    pointer-events: none;
    background-image: url('./images/bg.jpg'); /* Hình ảnh thay thế cho video */
    background-size: cover;
    background-position: center;
  }
  
  #bg-video {
    width: 100%;
    height: 100%;
    object-fit: cover; 
  }
  
  /* Media query cho mobile */
  @media (max-width: 768px) {
    #bg-video {
      display: none; /* Ẩn video trên di động */
      visibility: hidden;
    }
  }