/* Image zoom popup */

/* Gallery */

.image-zoom-gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.image-zoom-gallery__item {
  display: block;
  min-width: 0;
  overflow: hidden;
  line-height: 0;

  background: var(--surface-light);
  border-radius: var(--br-m, 12px);
}

.image-zoom-gallery__image {
  display: block;

  width: 100%;
  aspect-ratio: 1;

  object-fit: cover;

  transition: transform var(--transition, 0.3s ease);
}


/* Popup */

.image-zoom-popup {
  --image-zoom-z: 10000;
  --image-zoom-toolbar-height: 56px;
  --image-zoom-caption-height: 48px;
  --image-zoom-thumb-size: 72px;
  --image-zoom-gap: 12px;
  --image-zoom-bg: rgb(14 18 17 / 98%);
  --image-zoom-control-bg: rgb(255 255 255 / 10%);
  --image-zoom-control-bg-hover: rgb(255 255 255 / 18%);

  position: fixed;
  z-index: var(--image-zoom-z);
  inset: 0;

  display: grid;
  grid-template-rows:
    var(--image-zoom-toolbar-height)
    minmax(0, 1fr)
    auto;

  color: #fff;
  background: var(--image-zoom-bg);

  opacity: 0;
  visibility: hidden;
  pointer-events: none;

  transition:
    opacity 0.25s ease,
    visibility 0.25s;
}

.image-zoom-popup.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}


/* Toolbar */

.image-zoom-popup__toolbar {
  position: relative;
  z-index: 4;

  display: flex;
  align-items: center;
  gap: 8px;

  min-width: 0;
  padding-inline: 16px;
}

.image-zoom-popup__counter {
  margin-right: auto;

  color: rgb(255 255 255 / 72%);
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}

.image-zoom-popup__control,
.image-zoom-popup__nav {
  --btn-bg: var(--image-zoom-control-bg);
  --btn-color: #fff;
  --btn-height: 40px;
  --btn-pad-inline: 10px;
  --btn-pad-block: 10px;
  --btn-radius: 50%;

  flex-shrink: 0;
}

.image-zoom-popup__control:disabled,
.image-zoom-popup__nav:disabled {
  opacity: 0.3;
  cursor: default;
}


/* Main */

.image-zoom-popup__main {
  display: grid;
  grid-template-columns:
    calc(var(--image-zoom-thumb-size) + var(--image-zoom-gap) * 2)
    minmax(0, 1fr);

  min-width: 0;
  min-height: 0;
  overflow: hidden;
}


/* Thumbnails */

.image-zoom-popup__thumbs {
  min-width: 0;
  min-height: 0;

  overflow-x: hidden;
  overflow-y: auto;

  padding:
    4px
    var(--image-zoom-gap)
    12px;

  overscroll-behavior: contain;
}

.image-zoom-popup__thumb-list {
  display: grid;
  gap: 8px;
}

.image-zoom-popup__thumb {
  display: block;

  width: var(--image-zoom-thumb-size);
  height: var(--image-zoom-thumb-size);
  padding: 2px;

  overflow: hidden;

  background: transparent;
  border: 2px solid transparent;
  border-radius: var(--br-s, 8px);

  cursor: pointer;

  transition:
    border-color var(--transition, 0.25s ease),
    opacity var(--transition, 0.25s ease);
}

.image-zoom-popup__thumb.is-active {
  border-color: var(--accent-color, #5cc8a3);
}

.image-zoom-popup__thumb-image {
  display: block;

  width: 100%;
  height: 100%;

  object-fit: cover;
  border-radius: calc(var(--br-s, 8px) - 3px);
}


/* Viewport */

.image-zoom-popup__viewport {
  position: relative;

  min-width: 0;
  min-height: 0;

  overflow: hidden;
}

.image-zoom-popup__stage {
  position: absolute;
  inset: 0;

  display: flex;
  justify-content: center;
  align-items: center;

  min-width: 0;
  min-height: 0;

  overflow: hidden;

  touch-action: none;
  user-select: none;
  cursor: zoom-in;
}

.image-zoom-popup__stage.is-zoomed {
  cursor: grab;
}

.image-zoom-popup__stage.is-dragging {
  cursor: grabbing;
}

.image-zoom-popup__image {
  display: block;

  width: auto;
  height: auto;

  max-width: calc(100% - 96px);
  max-height: calc(100% - 24px);

  object-fit: contain;

  transform: translate3d(0, 0, 0) scale(1);
  transform-origin: center;
  will-change: transform;

  pointer-events: none;
  user-select: none;
  -webkit-user-drag: none;
}


/* Navigation */

.image-zoom-popup__nav {
  position: absolute;
  z-index: 3;
  top: 50%;

  transform: translateY(-50%);
}

.image-zoom-popup__nav--prev {
  left: 16px;
}

.image-zoom-popup__nav--next {
  right: 16px;
}


/* Caption */

.image-zoom-popup__caption {
  min-height: var(--image-zoom-caption-height);
  padding: 12px 16px 16px;

  color: rgb(255 255 255 / 72%);
  font-size: 14px;
  line-height: 1.4;
  text-align: center;
}


/* Long image mode */

.image-zoom-popup.is-scroll-width .image-zoom-popup__stage {
  display: block;

  overflow-x: hidden;
  overflow-y: auto;

  touch-action: pan-y;
  cursor: default;

  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}

.image-zoom-popup.is-scroll-width .image-zoom-popup__image {
  width: 100%;
  height: auto;

  max-width: none;
  max-height: none;

  object-fit: initial;

  transform: none !important;
  will-change: auto;
}

.image-zoom-popup.is-scroll-width [data-image-zoom-in],
.image-zoom-popup.is-scroll-width [data-image-zoom-out] {
  display: none;
}

.image-zoom-popup.is-scroll-width .image-zoom-popup__stage.is-zoomed,
.image-zoom-popup.is-scroll-width .image-zoom-popup__stage.is-dragging {
  cursor: default;
}


/* Page state */

body.is-image-zoom-open {
  overflow: hidden;
  overscroll-behavior: none;
}


/* Hover */

@media (hover: hover) {
  .image-zoom-gallery__item:hover .image-zoom-gallery__image {
    transform: scale(1.025);
  }

  .image-zoom-popup__control:hover,
  .image-zoom-popup__nav:hover {
    --btn-bg: var(--image-zoom-control-bg-hover);
  }

  .image-zoom-popup__thumb:not(.is-active):hover {
    border-color: rgb(255 255 255 / 35%);
  }
}


/* Mobile */

@media (max-width: 767px) {
  .image-zoom-gallery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .image-zoom-popup {
    --image-zoom-toolbar-height: 52px;
    --image-zoom-thumb-size: 56px;
    --image-zoom-caption-height: 42px;
  }

  .image-zoom-popup__toolbar {
    padding-inline: 8px;
  }

  .image-zoom-popup__main {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows:
      minmax(0, 1fr)
      calc(var(--image-zoom-thumb-size) + 20px);
  }

  .image-zoom-popup__viewport {
    grid-row: 1;
  }

  .image-zoom-popup__thumbs {
    grid-row: 2;

    overflow-x: auto;
    overflow-y: hidden;

    padding: 8px 10px 10px;
  }

  .image-zoom-popup__thumb-list {
    display: flex;
    gap: 8px;

    width: max-content;
  }

  .image-zoom-popup__thumb {
    flex: 0 0 var(--image-zoom-thumb-size);
  }

  .image-zoom-popup__image {
    max-width: calc(100% - 16px);
    max-height: calc(100% - 16px);
  }

  .image-zoom-popup__nav {
    --btn-height: 36px;
    --btn-pad-inline: 8px;
    --btn-pad-block: 8px;
  }

  .image-zoom-popup__nav--prev {
    left: 8px;
  }

  .image-zoom-popup__nav--next {
    right: 8px;
  }

  .image-zoom-popup__caption {
    padding: 8px 12px 12px;
  }

  .image-zoom-popup.is-scroll-width .image-zoom-popup__image {
    width: 100%;
    max-width: none;
    max-height: none;
  }
}


/* Reduced motion */

@media (prefers-reduced-motion: reduce) {
  .image-zoom-popup,
  .image-zoom-gallery__image {
    transition: none;
  }
}