/* Canvas: ordered masonry of artwork tiles, the tile itself and the endless loader.
   Without JavaScript the canvas is an ordered grid; masonry.js adds .is-placed. */
.canvas {
  --canvas-cols: 4;
  --canvas-gap: 16px;
  display: grid;
  grid-template-columns: repeat(var(--canvas-cols), minmax(0, 1fr));
  gap: var(--canvas-gap);
  align-items: start;
  margin-block: var(--space-6);
}
@media (min-width: 1360px) {
  .canvas {
    --canvas-cols: 5;
  }
}
@media (min-width: 768px) and (max-width: 1023.98px) {
  .canvas {
    --canvas-cols: 3;
    --canvas-gap: 14px;
  }
}
@media (max-width: 767.98px) {
  .canvas {
    --canvas-cols: 2;
    --canvas-gap: 3px;
    margin-inline: calc(-1 * var(--gutter));
  }
}
.canvas.is-placed {
  display: block;
  position: relative;
}
.canvas.is-placed > .tile {
  position: absolute;
  top: 0;
  left: 0;
}
.canvas.is-animated > .tile {
  transition: transform var(--duration-slow) var(--ease-out);
}

/* Tile */
.tile {
  position: relative;
  min-width: 0;
}
.tile-media {
  display: block;
  aspect-ratio: var(--tile-ratio, 4 / 5);
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--surface-tint);
}
.tile-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}
.tile-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  pointer-events: none;
}
.tile-meta a,
.tile-meta button {
  pointer-events: auto;
}
.tile-artist {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  font-size: 12px;
  font-weight: var(--weight-strong);
  text-decoration: none;
  color: inherit;
}
.tile-artist > span:last-child {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.tile-actions {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.tile-actions form {
  display: contents;
}
.tile-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  min-height: 32px;
  min-width: 32px;
  padding: 4px 8px;
  border: 0;
  border-radius: var(--radius-pill);
  background: transparent;
  color: inherit;
  font: var(--weight-strong) 12px / 1 var(--font-sans);
  font-variant-numeric: tabular-nums;
}
button.tile-btn:hover {
  background: var(--ink-wash);
  color: inherit;
  transform: none;
}
.tile-btn svg {
  width: 16px;
  height: 16px;
  transition: transform var(--duration) var(--ease-spring);
}
.tile-btn[aria-pressed="true"] {
  color: var(--accent);
}
.tile-btn[aria-pressed="true"] svg {
  fill: currentColor;
}
.tile-btn.fav[aria-pressed="true"] {
  color: var(--favorite);
}
button.tile-btn:active svg {
  transform: scale(0.8);
}
.tile.is-fresh .tile-media {
  animation: tile-fresh 2400ms var(--ease-out);
}
@keyframes tile-fresh {
  0% {
    transform: scale(0.6);
    opacity: 0;
    box-shadow:
      0 0 0 3px var(--paper),
      0 0 0 5px var(--accent);
  }
  30% {
    transform: scale(1.04);
    opacity: 1;
  }
  45% {
    transform: scale(1);
  }
  70% {
    box-shadow:
      0 0 0 3px var(--paper),
      0 0 0 5px var(--accent);
  }
  100% {
    box-shadow:
      0 0 0 3px var(--paper),
      0 0 0 5px transparent;
  }
}

/* Desktop hover: credit and actions appear over the image */
@media (min-width: 768px) and (hover: hover) and (pointer: fine) {
  .tile-meta {
    position: absolute;
    z-index: var(--z-tile-meta);
    left: 0;
    right: 0;
    bottom: 0;
    padding: var(--space-8) var(--space-2) var(--space-2) var(--space-3);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    background: var(--gradient-image-fade);
    color: var(--on-image);
    opacity: 0;
    transform: translateY(6px);
    transition:
      opacity var(--duration) var(--ease-out),
      transform var(--duration) var(--ease-out);
  }
  .tile:hover .tile-meta,
  .tile:focus-within .tile-meta {
    opacity: 1;
    transform: none;
  }
  .tile:hover .tile-media img {
    transform: scale(1.035);
  }
  .tile-meta .tile-artist:hover {
    color: var(--on-image);
    text-decoration: underline;
  }
  .tile-meta button.tile-btn:hover {
    background: var(--image-control);
  }
  .tile-meta .tile-btn[aria-pressed="true"] {
    color: var(--on-image-accent);
  }
  .tile-meta .tile-btn.fav[aria-pressed="true"] {
    color: var(--on-image-favorite);
  }
}

/* Touch and mobile: a small footer under the image */
@media (max-width: 767.98px), (hover: none), (pointer: coarse) {
  .tile-meta {
    min-height: 44px;
    padding: 0 2px 0 8px;
    background: var(--surface);
  }
  .tile-artist {
    min-height: 44px;
    min-width: 44px;
  }
  .tile-btn {
    min-height: 44px;
    min-width: 44px;
    justify-content: center;
  }
}
@media (max-width: 767.98px) {
  .tile-media {
    border-radius: 2px;
  }
  .tile-meta {
    padding-left: 6px;
  }
  .tile-artist {
    font-size: var(--text-xs);
  }
}

/* Endless loader */
.endless {
  display: grid;
  justify-items: center;
  gap: var(--space-3);
  padding-block: var(--space-7) var(--space-4);
}
.endless-end {
  margin: 0;
  color: var(--muted);
  font-size: var(--text-sm);
}
.endless-spinner {
  display: none;
  width: 28px;
  height: 28px;
  border: 3px solid var(--line);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 800ms linear infinite;
}
.endless.is-loading .endless-spinner {
  display: block;
}
.endless.is-loading [data-endless-next] {
  opacity: 0.5;
  pointer-events: none;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}