.back-to-top {
  position: fixed;
  right: 20px;
  bottom: 24px;
  width: 44px;
  height: 44px;
  padding: 10px;
  display: grid;
  place-items: center;
  background: #fff;
  color: var(--green);
  border: 1px solid #b9d1c4;
  border-radius: 50%;
  box-shadow: 0 3px 14px #163a3014;
  z-index: 65;
}
.back-to-top[hidden] {
  display: none;
}
.back-to-top:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
}
#image-dialog.enhanced-viewer {
  width: min(1100px, calc(100% - 24px));
  max-height: 92dvh;
  padding: 16px;
  overflow: auto;
}
#image-dialog.enhanced-viewer > [data-close-image] {
  position: sticky;
  top: 0;
  float: right;
  margin: 0 0 10px 12px;
  width: 44px;
  height: 44px;
}
.viewer-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  clear: left;
  padding-bottom: 12px;
}
.viewer-toolbar button,
.viewer-toolbar a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--deep);
  padding: 8px 12px;
  font-size: var(--type-small);
}
.viewer-toolbar button:disabled {
  opacity: 0.4;
  cursor: default;
}
.viewer-toolbar [hidden] {
  display: none;
}
.viewer-count {
  color: var(--text);
  font-size: var(--type-small);
}
.viewer-divider {
  width: 1px;
  height: 24px;
  background: var(--line);
}
.viewer-viewport {
  clear: both;
  overflow: auto;
  max-height: 65dvh;
  overscroll-behavior: contain;
  touch-action: pan-x pan-y pinch-zoom;
  background: #f5f8f6;
  border-radius: 8px;
}
.viewer-viewport #full-image {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
}
.viewer-viewport #full-image[hidden] {
  display: none;
}
.viewer-viewport.zoomed #full-image {
  margin: 0;
}
#image-dialog.enhanced-viewer #image-caption {
  font-size: var(--type-small);
  margin: 12px 0 0;
}
@media (max-width: 700px) {
  .back-to-top {
    bottom: calc(90px + env(safe-area-inset-bottom, 0px));
  }
  #image-dialog.enhanced-viewer {
    padding: 12px;
  }
  .viewer-toolbar {
    gap: 6px;
  }
  .viewer-toolbar button,
  .viewer-toolbar a {
    padding: 7px 10px;
  }
}