.popup__button-close {
  position: absolute;
  top: -40px;
  right: -40px;
  border: 0;
  background: none;
  padding: 0;
  cursor: pointer;
  transition: all .8s ease;
}

.popup__button-close:hover {
  opacity: .6;
}

@media screen and (max-width: 1024px) {
  .popup__button-close {
    top: -40px;
    right: 20px;
    width: 25px;
  }
}