.scroll-top{
    position:fixed;

    right:26px;
    bottom:26px;

    width:56px;
    height:56px;

    border:none;
    border-radius:50%;

    background:#2c3148;
    color:white;

    font-size:22px;
    cursor:pointer;

    display:flex;
    align-items:center;
    justify-content:center;

    box-shadow:0 12px 30px rgba(0,0,0,.18);

    opacity:0;
    visibility:hidden;

    transform:translateY(20px);

    transition:.35s ease;

    z-index:9999;
}

.scroll-top.show{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
}

.scroll-top:hover{
    transform:translateY(-4px);
    background:#353b56;
}