.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: #333;
    border-radius: 50%;
    display: none;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    z-index: 9999;
    transition: background-color 0.3s ease;
}

.scroll-to-top:hover {
    background-color: #555;
}

.arrow-up {
    color: #fff;
    font-size: 24px;
    line-height: 1;
}