/* Back to Top Button */
#back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: none;
    width: 50px;
    height: 50px;
    background-color: #16a085;
    color: #fff;
    border: none;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    z-index: 1000;
    transition: opacity 0.3s ease;
  }
  
  #back-to-top:hover {
    background-color: #12876f;
  }
  
  /* Ensure responsiveness */
  @media screen and (max-width: 480px) {
    #back-to-top {
      width: 40px;
      height: 40px;
      font-size: 20px;
      bottom: 15px;
      right: 15px;
    }
  }