.scroll-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: none;
    width: 50px;
    height: 50px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.3s ease;
    z-index: 1000;
}

.scroll-to-top:hover {
    opacity: 1;
}

.scroll-to-top i {
    font-size: 24px;
    line-height: 50px;
}