img {
  max-width: 100%;
  display: block;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.gallery {
  --_size: 80px; /* width and heigh of iamges */
  --_grid-cols: repeat(3, 1fr);
  --_grid-areas: "large large large" "large large large" "large large large"
    "thumb-1 thumb-2 thumb-3" "thumb-4 thumb-5 thumb-6"
    "thumb-7 thumb-8 thumb-9" "thumb-10 thumb-11 thumb-12";
  --_gap: 0.5rem;
  --_info-top: 0;
  --_info-bottom: auto;
  --_info-translate: -100px;

  width: 100%;
  max-width: fit-content;
  min-width: min-content;
  display: grid;
  grid-template-columns: var(--_grid-cols);
  grid-template-areas: var(--_grid-areas);

  gap: var(--_gap);
  position: relative;
  overflow: hidden;
}
@media (min-width: 720px) {
  .gallery {
    --_size: 220px;
    --_grid-cols: repeat(6, 1fr);
    --_grid-areas: "thumb-1 thumb-2 thumb-3 large large large"
      "thumb-4 thumb-5 thumb-6 large large large"
      "thumb-7 thumb-8 thumb-9 large large large";
      /* --_grid-areas: "thumb-1 thumb-2 thumb-3 large large large"*/
      /*"thumb-4 thumb-5 thumb-6 large large large"*/
      /*"thumb-7 thumb-8 thumb-9 large large large" "thumb-10 thumb-11 thumb-12 large large large" "thumb-13 thumb-14 thumb-15 large large large" "thumb-16 thumb-17 thumb-18 large large large" "thumb-19 thumb-20 thumb-21 large large large";*/
    --_info-top: auto;
    --_info-bottom: 0;
    --_info-translate: 100px;
  }
}

.gallery > label {
  cursor: pointer;
  height: var(--_size);
  aspect-ratio: 1;
}
.gallery > label:nth-child(1) {
  grid-area: thumb-1;
}
.gallery > label:nth-child(2) {
  grid-area: thumb-2;
}
.gallery > label:nth-child(3) {
  grid-area: thumb-3;
}
.gallery > label:nth-child(4) {
  grid-area: thumb-4;
}
.gallery > label:nth-child(5) {
  grid-area: thumb-5;
}
.gallery > label:nth-child(6) {
  grid-area: thumb-6;
}
.gallery > label:nth-child(7) {
  grid-area: thumb-7;
}
.gallery > label:nth-child(8) {
  grid-area: thumb-8;
}
.gallery > label:nth-child(9) {
  grid-area: thumb-9;
}

.gallery > label img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 500ms ease-in-out;
}
.gallery > label > div {
  position: absolute;
  right: 0;
  top: var(--_info-top);
  bottom: var(--_info-bottom);
  width: calc((var(--_size) * 3) + var(--_gap) * 2);
  z-index: 10;
  background-color: #00000099;
  padding: 1rem;
  font-size: 0.85rem;
  font-weight: 300;
  opacity: 0;
  translate: 0 var(--_info-translate);
  transition: 300ms ease-in-out;
}
.gallery > label > div h2 {
  font-size: 1rem;
  font-weight: 500;
}
.gallery > label > div a {
  color: white;
  transition: scale 300ms;
  display: inline-block;
  transform-origin: bottom left;
}
.gallery > label > div a:hover {
  scale: 1.25;
}
.main-img {
  grid-area: large;
  aspect-ratio: 1/1;
}

.gallery > label::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: calc((var(--_size) * 3) + var(--_gap) * 2);
  height: calc((var(--_size) * 3) + var(--_gap) * 2);
  aspect-ratio: 1;
  background-image: var(--bg-img);
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  z-index: 1;
  opacity: 0;
  transition: opacity 500ms ease-in-out;
}

/* reveal photo */
.gallery > label:has(input:checked)::before {
  opacity: 1;
}
.gallery > label:has(input:checked) > div {
  opacity: 1;
  translate: 0;
  transition-delay: 500ms;
}
.gallery{
    margin:50px 0;
    width: 90%;
    margin-left: 5%;
}
@media (max-width: 768px) {
   .gallery {
    margin-left: 17%;
} 
}