/* Originales CSS beibehalten */
    body {
      font-family: 'Arial', sans-serif;
      background-color: #121212;
      color: #ffffff;
      display: flex;
      justify-content: center;
      height: 100vh;
      margin: 0;
    }

    .container {
      display: flex;
      width: 100%;
      max-width: 1600px;
      height: 90vh;
    }

    .left-panel {
      flex: 1;
      padding: 20px;
      max-height: 100%;
      overflow-y: auto;
      border-right: 1px solid #444;
    }

    .right-panel {
      flex: 1;
      padding: 20px;
    }

    input, button {
      margin: 10px 0;
      padding: 15px;
      font-size: 16px;
      width: 100%;
      border: 1px solid #444;
      border-radius: 8px;
      transition: background-color 0.3s ease;
    }

    input:focus {
      outline: none;
      border-color: #0073e6;
      background-color: #333;
    }

    button {
      cursor: pointer;
      background-color: #4CAF50;
      color: white;
      border: none;
    }

    button:hover {
      background-color: #45a049;
    }

    #playlist-info {
      margin-top: 20px;
      text-align: left;
      max-height: 80vh;
      overflow-y: auto;
      border: 1px solid #444;
      border-radius: 8px;
      background-color: #222;
      padding: 10px;
    }

    .video-item {
      display: flex;
      align-items: center;
      margin-bottom: 15px;
      padding: 10px;
      border: 1px solid #444;
      border-radius: 8px;
      transition: background-color 0.3s ease;
    }

    .video-item:hover {
      background-color: #333;
    }

    .video-item img {
      width: 100px;
      height: auto;
      border-radius: 8px;
      margin-right: 15px;
    }

    .video-item a {
      color: #0073e6;
      text-decoration: none;
      font-size: 18px;
      font-weight: bold;
    }

    .video-item a:hover {
      text-decoration: underline;
    }

    #video-player {
      max-width: 100%;
      aspect-ratio: 16 / 9;
      margin-top: 20px;
      border-radius: 8px;
      overflow: hidden;
    }

    #mode-toggle {
      position: absolute;
      top: 10px;
      right: 10px;
      width: 120px;
      cursor: pointer;
    }

    #sun-icon {
      position: absolute;
      top: 10px;
      right: 10px;
      width: 120px;
      cursor: pointer;
      display: none;
    }

    .error-message {
      color: red;
    }

    .loader {
      border: 4px solid rgba(255, 255, 255, 0.1);
      border-radius: 50%;
      border-top: 4px solid #4CAF50;
      width: 30px;
      height: 30px;
      animation: spin 1s linear infinite;
      margin: 10px auto;
    }

    @keyframes spin {
      0% { transform: rotate(0deg); }
      100% { transform: rotate(360deg); }
    }

    /* Nur neue Styles für das Dropdown */
    .playlist-dropdown {
      display: none;
      position: absolute;
      width: calc(100% - 40px);
      background-color: #222;
      border: 1px solid #444;
      border-radius: 0 0 8px 8px;
      max-height: 200px;
      overflow-y: auto;
      z-index: 1000;
    }

    .playlist-dropdown.show {
      display: block;
    }

    .playlist-item {
      padding: 10px 15px;
      cursor: pointer;
      border-bottom: 1px solid #444;
    }

    .playlist-item:hover {
      background-color: #333;
    }

    .input-container {
      position: relative;
    }