body {
    margin: 0;
    background: rgb(0, 0, 0);
  }
  
  video {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    height: 100vh;
    object-fit: cover;
    z-index: -1;
  }
  
  /* Popup Grundstruktur */
  #popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    opacity: 0;
    pointer-events: none;
  }
  
  #popup.show {
    opacity: 1;
    pointer-events: all;
  }
  
  .popup-content {
    background: rgb(0, 0, 0);
    max-width: 90%;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.2);
  }
  
  .popup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgb(255, 255, 255);
    color: rgb(0, 0, 0);
    padding: 0.5rem 1rem;
    font-weight: bold;
  }

  #txt {
    padding: 10px;
    color: #ffffff;
  }
  
  .popup-title {
    font-family: sans-serif;
    font-size: 1.5rem;
  }
  
  .close-button {
    background: none;
    border: none;
    color: rgb(0, 0, 0);
    font-size: 2.5rem;
    cursor: pointer;
    line-height: 1;
    padding-bottom: 3%;
  }
  
  .popup-content p {
    font-family: monospace;
    font-size: 1.5rem;
    line-height: 1.3;
    margin: 1.5rem 0 0.5rem;
  }
  
  .popup-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }
  
  #ja {
    font-family: monospace;
    font-weight: bold;
    color: #e50000;
    text-decoration: underline;
    font-size: 1.5rem;
    cursor: pointer;
    animation: glowRed 2s infinite ease;
    padding-top: 20px;
  }
  #nein {
    font-family: monospace;
    font-weight: bold;
    color: #0097d9;
    text-decoration: underline;
    font-size: 1.5rem;
    cursor: pointer;
    animation: glowBlue 2s infinite ease;
    padding-top: 10px;
    padding-bottom: 20px;
  }
  
  @keyframes glowRed {
    0%, 100% {
      text-shadow: 0 0 5px #ff0000;
    }
    50% {
      text-shadow: 0 0 35px #ff0000, 0 0 30px #ff4d4d00;
    }
  }
  
  @keyframes glowBlue {
    0%, 100% {
      text-shadow: 0 0 5px #00bfff;
    }
    50% {
      text-shadow: 0 0 35px #00bfff, 0 0 30px #66d9ff00;
    }
  }

  @media (orientation: portrait) {
    video {
      height: auto;
      width: 100vw;
    }
    .popup-content p {
      font-size: 2rem;
    }
    .close-button {
      font-size: 3rem;
    }
    .popup-links a {
      font-size: 2rem;
    }
    #ja {
      font-size: 2rem;
    }
    #nein {
      font-size: 2rem;
    }
    .popup-title {
      font-size: 2rem;
    }
    .close-button {
      font-size: 3.5rem;
    }
    }