gallery/style/shiny/gallery.css

@import url(base.css);

:root {
  --image-size: 200px;
}

body {
  --gap: 1em;
  max-width: calc(4 * var(--image-size) + 3 * var(--gap));
  padding-left: 4em;
  padding-right: 4em;
}

.grid {
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, var(--image-size));
  grid-gap: var(--gap);
  justify-content: center;
}

.item {
  --border-thickness: 2px;
  list-style: none;

  width: var(--image-size);
  height: var(--image-size);
  overflow: hidden;

  position: relative;
}

.item:not(.year-marker) {
  box-shadow: var(--text-shadow);
  border: var(--border-thickness) solid white;
  border-radius: 0.5em;
  background: hsl(340, 45%, 65%);
}


figure {
  margin: 0;
  padding: 0;
}

figcaption {
  position: absolute;
  bottom: 0;
  left: 0;
  display: block;
  text-align: center;
  width: 100%;
  background: hsl(0, 0%, 0%, 75%);
  font-size: 80%;
  border-top: 1px solid white;
}


.year-marker {
  grid-area: auto / 1;
  padding: var(--border-thickness);
}

.year-text {
  --gap: 0.2em;
  display: grid;
  grid-template-columns: repeat(2, calc(50% - 3 * var(--gap)));
  grid-gap: var(--gap);
  align-items: center;
  justify-content: center;
  height: 100%;
  width: 100%;
}

.year-marker .y {
  display: block;
  text-align: center;
  font-size: calc(var(--image-size) * 0.6);
  line-height: 0;
  font-weight: 900;
  transform: scaleX(110%);
}

.item.nsfw::after {
  --size: calc(1/4 * var(--image-size));
  content: url(../18_plus_white.svg);
  height: var(--size);
  width: var(--size);

  display: inline-block;
  position: absolute;
  top: 3px;
  right: 3px;

  transform: rotate(30deg);
  mix-blend-mode: multiply;
}

footer {
  font-size: 90%;
  text-align: center;
  margin-top: 1em;
}


@media (hover) {
  .item:hover figcaption {
    opacity: 20%;
  }

  @media (prefers-reduced-motion) {
    .item:hover figcaption {
      transform: translateY(80%);
    }
  }

  @media (prefers-reduced-motion: no-preference) {
    .item figcaption {
      transition-property: opacity, transform;
      transition-duration: 0.25s;
      transition-timing-function: ease-in-out;
    }

    .item:hover figcaption {
      transform: translate(-20%, 80%) rotateZ(7deg);
    }
  }
}