.popup-fasad,
.popup-terrace,
.popup-interior,
.popup-ceiling {
  display: none;
  opacity: 0;
  transition: opacity 0.4s ease;
}

/* активное состояние */
.popup-fasad.active,
.popup-terrace.active,
.popup-interior.active,
.popup-ceiling.active {
  display: block;
  opacity: 1;
}