body {
    background-color: #121212;
    color: #f0f0f0;
    transition: background-color 0.3s, color 0.3s;
  }

  body.light-theme {
    background-color: #ffffff;
    color: #262626;
  }

  /* Кнопка */
  #theme-toggle {
    background-color: #262626;
    color: #FF8900;
    border: none;
    padding: 10px 15px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
  }

  body.light-theme #theme-toggle {
    background-color: #FF8900;
    color: #ffffff;
  }