.btn {
    position: relative;
    cursor: pointer;
    user-select: none;
    transition: all 500ms cubic-bezier(0.77, 0, 0.175, 1);
}

.btn:before,
.btn:after {
    content: '';
    position: absolute;
    transition: inherit;
    z-index: -1;
}

.btn:hover {
    color: var(--def);
    transition-delay: .5s;
}

.btn:hover:before {
    transition-delay: 0s;
}

.btn:hover:after {
    background: #fdfdfd;
    transition-delay: .35s;
}

.from-bottom:before,
.from-bottom:after {
    left: 0;
    height: 0;
    width: 100%;
}

.from-bottom:before {
    top: 0;
    border: 1px solid #fdfdfd;
    border-top: 0;
    border-bottom: 0;
}

.from-bottom:after {
    bottom: 0;
    height: 0;
}

.from-bottom:hover:before,
.from-bottom:hover:after {
    height: 100%;
}


/* ~~~~~~~~~~~~ GLOBAL SETTINGS ~~~~~~~~~~~~ */

*,
*:before,
*:after {
    box-sizing: border-box;
}