body {
    overflow: hidden;
  }
  
  .background-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    object-fit: fill;
  }
  
  .popup {
    position: absolute;
    width: 200px;
    height: 100px;
    background: rgba(255, 255, 255, 0.9);
    border: 2px solid black;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
    border-radius: 10px;
    z-index: 10;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: Arial, sans-serif;
    color: black;
    font-size: 14px;
  }
  
  .popup .close-btn {
    position: absolute;
    top: 5px;
    right: 5px;
    font-size: 10px;
    color: red;
    cursor: pointer;
    width: 10px;
    height: 10px;
  }
  
  .popup .close-btn:hover {
    color: darkred;
  }