/* Grundlegende Stile (wie bereits vorhanden) */
:root {
    --bg-color: #f7f7f7;
    --text-color: #333;
    --form-bg: #fff;
    --link-color: #0066cc;
    --button-bg: #0066cc;
    --button-text: white;
    --submit-hover: #004999;
   }
  
   body {
    font-family: Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 20px;
    text-align: center;
    transition: background-color 0.3s, color 0.3s;
   }
  
   body.dark-mode {
    --bg-color: #121212;
    --text-color: #e0e0e0;
    --form-bg: #1e1e1e;
    --link-color: #66b2ff;
    --button-bg: #444;
    --button-text: #fff;
    --submit-hover: #666;
   }
  
   ul {
    list-style-type: none;
    padding: 0;
    margin: 0 0 20px 0;
    text-align: right;
   }
  
   ul li a {
    text-decoration: none;
    margin-left: 10px;
    color: var(--link-color);
    font-weight: bold;
   }
  
   form {
    background-color: var(--form-bg);
    padding: 20px;
    border: 1px solid #ddd;
    max-width: 400px;
    margin: 20px auto;
    border-radius: 8px;
    text-align: left;
    transition: background-color 0.3s;
   }
  
   form input[type="submit"] {
    display: block;
    margin: 20px auto 0;
    background-color: var(--button-bg);
    color: var(--button-text);
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
   }
  
   form input[type="submit"]:hover {
    background-color: var(--submit-hover);
   }
  
   label {
    display: block;
    margin-top: 10px;
    margin-bottom: 5px;
   }
  
   input[type="text"],
   input[type="password"],
   input[type="file"] { /* Inkludiere input[type="file"] */
    width: 100%;
    padding: 8px;
    box-sizing: border-box;
    border: 1px solid #ccc;
    border-radius: 4px;
   }
  
   a {
    color: var(--link-color);
   }
  
   #darkModeToggle {
    margin-top: 20px;
    padding: 10px 15px;
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
   }
  
   #darkModeToggle:hover {
    background-color: var(--submit-hover);
   }
  
   .list-center {
    display: flex;
    justify-content: center;
    align-items: center;
   }
  
   .list-center li {
    margin: 0 10px;
    text-align: center;
   }
  
   .copyright-footer {
    text-align: center;
    margin-top: 20px;
    font-size: 0.8em;
    color: #777;
   }
  
   /* Media Queries für Responsive Design */
  
   /* Für kleinere Bildschirme (z.B. Smartphones) */
   @media screen and (max-width: 768px) {
    body {
    padding: 10px;
    }
  
    ul {
    text-align: center;
    }
  
    ul li {
    display: block;
    margin: 5px 0;
    }
  
    .list-center {
    flex-direction: column;
    }
  
    .list-center li {
    margin: 10px 0;
    }
  
    video {
    width: 100% !important;
    height: auto !important;
    }
  
    form {
    max-width: 90%;
    }
   }
  
   /* Für mittelgroße Bildschirme (z.B. Tablets) */
   @media screen and (min-width: 769px) and (max-width: 1024px) {
    body {
    padding: 15px;
    }
  
    form {
    max-width: 60%;
    }
  
    .list-center {
    flex-wrap: wrap;
    }
   }