/* Gallery: an exhibition wall of ink on white paper, and a full-screen viewing room. */
.gallery-tools {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  margin: 10px 0 46px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.gallery-count {
  font: 11px var(--sans);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
}

.gallery-begin {
  background: none;
  border: 0;
  padding: 0;
  font: inherit;
}

.gallery-wall {
  list-style: none;
  margin: 0 0 120px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  grid-auto-flow: dense;
  gap: 34px 30px;
}

.gallery-piece {
  margin: 0;
  min-width: 0;
}

.gallery-piece.is-wide {
  grid-column: span 2;
}

.gallery-piece.is-tall {
  grid-row: span 2;
}

.piece-link {
  position: relative;
  display: grid;
  grid-template-rows: 1fr auto;
  height: 100%;
  color: var(--ink);
}

.piece-frame {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 1 / 1;
  padding: 7%;
  overflow: hidden;
  background: #fff;
}

.is-wide .piece-frame {
  aspect-ratio: 2 / 1;
}

.is-tall .piece-frame {
  aspect-ratio: auto;
  height: 100%;
}

.piece-frame img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  mix-blend-mode: multiply;
  transition:
    transform 1.1s var(--ease),
    filter 1.1s var(--ease);
}

.piece-frame::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.9s var(--ease);
}

.piece-number {
  position: absolute;
  top: 8px;
  left: 0;
  font: 10px var(--sans);
  letter-spacing: 1.5px;
  color: var(--red);
  opacity: 0;
  transform: translateY(4px);
  transition:
    opacity 0.6s,
    transform 0.6s var(--ease);
}

.piece-from {
  display: block;
  min-height: 1.5em;
  margin-top: 10px;
  font: italic 13px/1.5 var(--serif);
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color 0.6s;
}

.piece-link:hover .piece-frame img,
.piece-link:focus-visible .piece-frame img {
  transform: scale(1.035);
}

.piece-link:hover .piece-frame::after,
.piece-link:focus-visible .piece-frame::after {
  transform: scaleX(1);
}

.piece-link:hover .piece-number,
.piece-link:focus-visible .piece-number {
  opacity: 1;
  transform: none;
}

.piece-link:hover .piece-from,
.piece-link:focus-visible .piece-from {
  color: var(--ink);
}

.piece-link:focus-visible {
  outline-offset: 8px;
}

/* Viewing room */
html.room-open {
  overflow: hidden;
}

.gallery-room {
  width: 100vw;
  max-width: none;
  height: 100vh;
  height: 100dvh;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: #fff;
  color: var(--ink);
  overflow: hidden;
}

.gallery-room[open] {
  display: grid;
  grid-template-rows: 1fr auto;
}

.gallery-room::backdrop {
  background: #fff;
}

.room-stage {
  position: relative;
  min-height: 0;
  --room-y: clamp(18px, 4vw, 56px);
  --room-x: clamp(16px, 6vw, 90px);
  overflow: hidden;
  touch-action: pan-y pinch-zoom;
}

/* Sized to the stage box (not the picture) so tall works always fit above the bar. */
.room-image {
  position: absolute;
  top: var(--room-y);
  left: var(--room-x);
  width: calc(100% - 2 * var(--room-x));
  height: calc(100% - var(--room-y));
  object-fit: contain;
  mix-blend-mode: multiply;
  cursor: zoom-in;
  opacity: 0;
  transform: scale(0.985);
  transition:
    opacity 0.7s var(--ease),
    transform 0.7s var(--ease);
}

.room-image.is-ready {
  opacity: 1;
  transform: none;
}

.gallery-room.is-zoomed .room-image {
  transform: scale(2.4);
  cursor: zoom-out;
  transition: transform 0.45s var(--ease);
}

.room-loading {
  position: absolute;
  right: clamp(16px, 6vw, 90px);
  top: clamp(18px, 4vw, 56px);
  width: 22px;
  height: 22px;
  border: 1px solid var(--line);
  border-top-color: var(--red);
  border-radius: 50%;
  opacity: 0;
  transition: opacity 0.3s;
}

.gallery-room.is-loading .room-loading {
  opacity: 1;
  animation: room-turn 1.1s linear infinite;
  transition-delay: 0.4s;
}

.room-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  padding: 16px clamp(16px, 6vw, 90px) 22px;
  border-top: 1px solid var(--line);
  background: #fff;
  position: relative;
  z-index: 1;
}

.room-caption {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 16px;
  min-width: 0;
}

.room-number {
  font: 11px var(--sans);
  letter-spacing: 1.5px;
  color: var(--red);
  white-space: nowrap;
}

.room-article {
  font: italic 15px var(--serif);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.room-article:hover {
  border-color: var(--red);
}

.room-controls {
  display: flex;
  gap: 6px;
}

.room-button {
  min-width: 44px;
  height: 44px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #fff;
  font: 13px var(--sans);
  letter-spacing: 0.5px;
  transition:
    border-color 0.3s,
    color 0.3s;
}

.room-button:hover,
.room-button[aria-pressed='true'] {
  border-color: var(--red);
  color: var(--red);
}

.room-play {
  min-width: 78px;
}

.room-close {
  font-size: 20px;
  line-height: 1;
}

.room-progress {
  position: absolute;
  top: 0;
  left: 0;
  height: 2px;
  width: 100%;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
}

.room-progress.is-running {
  animation: room-slide var(--slide, 7s) linear forwards;
}

@keyframes room-slide {
  to {
    transform: scaleX(1);
  }
}

@keyframes room-turn {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 600px) {
  .gallery-wall {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 16px;
  }
  /* Two even columns keep the numbered works in reading order on a phone. */
  .gallery-piece.is-wide {
    grid-column: auto;
  }
  .gallery-piece.is-tall {
    grid-row: auto;
  }
  .is-wide .piece-frame,
  .is-tall .piece-frame {
    aspect-ratio: 1 / 1;
    height: auto;
  }
  .piece-number {
    opacity: 1;
    transform: none;
  }
  .piece-from {
    font-size: 12px;
  }
  .room-bar {
    padding-bottom: max(18px, env(safe-area-inset-bottom));
  }
  .room-caption {
    width: 100%;
  }
  .room-controls {
    width: 100%;
    justify-content: space-between;
  }
}

@media (prefers-reduced-motion: reduce) {
  .room-image,
  .room-image.is-ready {
    transition: none;
    transform: none;
  }
}