.scroll-to-top {
    position: fixed;
    bottom: 7%;
    right: 2%;
    width: 40px;
    height: 40px;
    background-color: #333;
    color: #fff;
    border-radius: 50%;
    text-align: center;
    line-height: 40px;
    cursor: pointer;
    z-index: 9999;
    display: none;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
    transition: background-color 0.3s;
}

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

.scroll-to-top .arrow-up {
    font-size: 30px;
    font-weight: bold;
    line-height: 35px;
}