#backToTop {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: #046637;
    color: #fff;
    border: 2px solid #fff100;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

#backToTop.show {
    opacity: 1;
    visibility: visible;
}

#backToTop.hide {
    opacity: 0;
    visibility: hidden;
}

#backToTop:hover {
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
}