/* ========================================
   КНОПКА ВОЗВРАТА НАВЕРХ
======================================== */

.scroll_to_top {
    position: fixed;

    right: 24px;
    bottom: 24px;

    width: 46px;
    height: 46px;

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

    padding: 0;

    border: 1px solid transparent;
    border-radius: 50%;

    background: #007bff;
    color: #ffffff;

    font-size: 22px;
    line-height: 1;

    cursor: pointer;

    opacity: 0;
    visibility: hidden;

    transform: translateY(10px);

    transition: all .5s;

    z-index: 900;
}

.scroll_to_top.visible {
    opacity: 1;
    visibility: visible;

    transform: translateY(0);
}

.scroll_to_top:hover {
    background: white;
    border: 1px solid #007bff;
    color: black;
}

.scroll_to_top:active {
    transform: translateY(1px);
}


/* ========================================
   МОБИЛЬНАЯ ВЕРСИЯ
======================================== */

@media (max-width: 600px) {

    .scroll_to_top {
        right: 16px;
        bottom: 16px;

        width: 60px;
        height: 60px;

        font-size: 40px;
    }

}