#backToTopBtn {
    display: none; 
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 9999;
    padding: 12px 20px;
    background-color: #2c3e50;
    color: #ffffff;
    border: none;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: background-color 0.3s, transform 0.2s, opacity 0.3s;
    opacity: 0.9;
    font-family: inherit;
    letter-spacing: 0.5px;
  }

  #backToTopBtn:hover {
    background-color: #1a252f;
    transform: scale(1.05);
    opacity: 1;
  }

  #backToTopBtn:active {
    transform: scale(0.95);
  }


  @media (max-width: 600px) {
    #backToTopBtn {
      bottom: 20px;
      right: 20px;
      padding: 10px 16px;
      font-size: 14px;
    }
  }