#back-to-top {
    position: fixed;
    bottom: 20px;
    right: 30px;
    z-index: 9999;
    border: none;
    outline: none;
    background-color: rgba(0, 123, 255, 0.7);
    color: white;
    cursor: pointer;
    padding: 15px;
    border-radius: 50%;
    font-size: 18px;
    transition: all 0.5s ease-in-out;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
  }
  
  #back-to-top:hover {
    background-color: rgba(0, 86, 179, 0.9);
  }
  
  #back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  
  #back-to-top svg {
    width: 24px;
    height: 24px;
    transition: transform 0.3s ease-in-out;
  }
  
  #back-to-top:hover svg {
    transform: translateY(-3px);
  }