body {
      font-family: Arial, sans-serif;
      max-width: 850px;
      margin: 2em auto;
      padding: 0 1em;
      background: #f5f5f5;
  }

  h1 {
      text-align: left;
  }

  label {
      display: inline-block;
      width: 300px;
  }

  input[type=text], input[type=number] {
      width: 150px;
      padding: 5px;
      margin-bottom: 10px;
  }

  button {
      padding: 10px 15px;
      font-size: 1rem;
      cursor: pointer;
      border: none;
      border-radius: 5px;
      background-color: #007BFF;
      color: #fff;
  }

  button:disabled {
      background-color: #ccc;
      color: #fff;
  }


  #klassenListe button {
      color: #fff;
  }

  #klassenListe {
      margin-top: 20px;
      border: 1px solid #ccc;
      background: white;
      overflow-y: auto;
      padding: 0;
      min-width: 350px;
  }

  #klassenListe li {
      list-style: none;
      padding: 10px;
      border-bottom: 1px solid #ddd;
      font-family: monospace;
      display: flex;
      align-items: center;
      justify-content: space-between;
      transition: background-color 0.3s;
      font-size: 1.1rem;
  }

  #klassenListe li:hover {
      background-color: #e0f7fa;
  }

  .info-text {
      flex-grow: 1;
      user-select: none;
  }

  .buttons {
      flex-shrink: 0;
      display: flex;
      gap: 4px;
  }

  .buttons button {
      padding: 6px 8px;
      font-size: 0.9em;
      margin-left: 5px;
      min-width: 30px;
  }

  #gesamt {
      margin-top: 15px;
      font-weight: bold;
      font-size: 1.1em;
  }

  #neuMischenBtn {
      margin-top: 15px;
  }

  #info {
      margin-top: 10px;
      font-style: italic;
      color: green;
  }

  .anleitung li {
      padding: 4px;
  }
  
.button_standard {
  display: inline-flex;
  align-items: center; /* vertikal zentrieren */
  gap: 0.5em;           /* Abstand zwischen Icon und Text */
  padding: 0.5em 1em;
  background-color: #007bff;
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 1em;
  cursor: pointer;
}

.button_standard svg {
  display: block;       /* verhindert extra whitespace */
  height: 1em;          /* optional, skaliert Icon mit Textgröße */
  width: auto;
}