.popup {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 100;
}

.popup__overlay {
    background-color: rgba(0,0,0,.65)  ;
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
}

.popup * {
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
}

.success_popup .popup__overlay {
    position: fixed;
}

.popup__body {
    background-color: #fff;
    border-radius: 15px;
    width: 500px;
    padding: 35px 55px 40px;
    position: relative;
    z-index: 2;
    margin: 30px auto 0;
}

.popup__close {
    background: #fff url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABUAAAAVAQMAAACT2TfVAAAABlBMVEUAAAA2NjbDJyQBAAAAAXRSTlMAQObYZgAAAEhJREFUCNcVjLkNgDAAAw9RpKSlYxEkNgM2Y KVsQkZImQqjqyx/x0plnxrn3EkZ5Blcb+dIY0tlyU0JzB+q3tzenXt//uXI+wGk0iKSjx8kdwAAAABJRU5ErkJggg==") 50% 50% no-repeat;
    border-radius: 100%;
    cursor: pointer;
    position: absolute;
    right: -17px;
    top: -17px;
    height: 50px;
    width: 50px;
    }

    .popup__close:hover {
    background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABUAAAAVAQMAAACT2TfVAAAABlBMVEUAAAAAAAClZ7nPAAAAAXRSTlMAQObYZgAAAEhJREFUCNcVjLkNgDAAAw9RpKSlYxEkNgM2YKVsQkZImQqjqyx/x0plnxrn3EkZ5Blcb+dIY0tlyU0JzB+q3tzenXt//uXI+wGk0iKSjx8kdwAAAABJRU5ErkJggg==");
}

.form {

}

.form__title {
    color: #363636  ;
    font-size: 32px;
    font-weight: bold;
    margin: 0 auto 25px;
    text-align: center;
    text-transform: uppercase;
}

.form__row {
    width: 100%;
    display: block;
    position: relative;
}

.form__row + .form__row {
    margin-top: 15px;
}

.form__row + .form__row:last-child {
    margin-top: 40px;
}

.form__label {
    color: #464646  ;
    font-size: 20px;
    line-height: 1;
    margin-bottom: 7px;
}

.form__input {
    font-family: "Open Sans", sans-serif;
    background-color: #fff;
    border: 1px solid #bababa;
    border-radius: 5px;
    height: 40px;
    width: 100%;
    padding: 5px 15px;
    transition: border-color .5s ease;
}

.form__input:hover,
.form__input:active,
.form__input:focus {
    border-color: #31b944  ;
}

.popup-form .btn {
    cursor: pointer;
    width: 310px;
    height: 70px;
}

.popup-form .btn span {
    font-size: 30px;
    line-height: 70px
}