.popup {
    background-color: rgba(0, 0, 0, .54);
    -webkit-transition: opacity .4s cubic-bezier(.23, 1, .32, 1) 0s;
    transition: opacity .4s cubic-bezier(.23, 1, .32, 1) 0s;
    -o-transition: opacity .4s cubic-bezier(.23, 1, .32, 1) 0s;
    -moz-transition: opacity .4s cubic-bezier(.23, 1, .32, 1) 0s;
    will-change: opacity, transform;
}

.popup__container {
    text-align: left;
    font-size: 12px;
    background-color: #fff;
    padding: 35px;
    margin: 30px auto;
    box-shadow: rgba(0, 0, 0, .25) 0 14px 45px, rgba(0, 0, 0, .22) 0 10px 18px;
    -webkit-box-shadow: rgba(0, 0, 0, .25) 0 14px 45px, rgba(0, 0, 0, .22) 0 10px 18px;
    -moz-box-shadow: rgba(0, 0, 0, .25) 0 14px 45px, rgba(0, 0, 0, .22) 0 10px 18px;
    border-radius: 3px;
    transition: opacity .2s ease, visibility 0s .1s, transform 450ms cubic-bezier(.23, 1, .32, 1) 0s, -webkit-transform 450ms cubic-bezier(.23, 1, .32, 1) 0s;
    -webkit-transform: scale(.8);
    -moz-transform: scale(.8);
    transform: scale(.8);
    -webkit-transition: opacity .2s ease, visibility 0s .1s, -webkit-transform 450ms cubic-bezier(.23, 1, .32, 1) 0s;
    transition: opacity .2s ease, visibility 0s .1s, -webkit-transform 450ms cubic-bezier(.23, 1, .32, 1) 0s;
    transition: opacity .2s ease, visibility 0s .1s, transform 450ms cubic-bezier(.23, 1, .32, 1) 0s;
    will-change: transform, opacity;
}

.popup__close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 18px;
    height: 18px;
    cursor: pointer;
    padding-top: 8px;
}

.popup__close span {
    display: block;
    width: 100%;
    height: 1px;
    background-color: #2f2c2c;
}

.popup__close span:first-of-type {
    -webkit-transform: rotate(45deg);
    -moz-transform: rotate(45deg);
    -ms-transform: rotate(45deg);
    -o-transform: rotate(45deg);
    transform: rotate(45deg);
}

.popup__close span:last-of-type {
    -webkit-transform: rotate(-45deg) translateY(-1px);
    -moz-transform: rotate(-45deg) translateY(-1px);
    -ms-transform: rotate(-45deg) translateY(-1px);
    -o-transform: rotate(-45deg) translateY(-1px);
    transform: rotate(-45deg) translateY(-1px);
}

@media (max-width: 767px) {
    .popup__container {
        width: 80%;
        margin: 10px auto;
        padding: 20px 18px;
    }

    .popup__close {
        top: 10px;
        right: 10px;
    }
}

.popup.opened .popup__container {
    -webkit-transform: scale(1);
    -moz-transform: scale(1);
    transform: scale(1);
}