.gallery-page {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: flex-start;
  margin: 0 -15px;
}

.gallery-page__image {
  width: calc(33.333% - 30px);
  margin: 0 15px 30px 15px;
  cursor: pointer;
  transition: all 0.3s;
}

.gallery-page__image:hover::after {
  opacity: 1;
}

.gallery-page__image::before {
  padding: 80% 0 0;
}

.gallery-page__image::after {
  content: "";
  position: absolute;
  display: block;
  opacity: 0;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-gray-gradient);
  -webkit-transition: all 0.3s;
  -o-transition: all 0.3s;
  transition: all 0.3s;
  z-index: 1;
}

@media screen and (max-width: 1024px) {
  .gallery-page__image {
    width: calc(50% - 30px);
  }
}

@media screen and (max-width: 768px) {
  .gallery-page {
    margin: 0 -5px;
  }

  .gallery-page__image {
    width: calc(50% - 10px);
    margin: 0 5px 10px 5px;
  }
}