/**
 * icon-stacker - the corner stack: round faces on the card surface, the
 * hover grow (a transform scale - the neighbours stay put), the name as a
 * label sliding in beside the face, four corners x two layouts.
 *
 * Sizes, offsets and the grow ratio ride CSS variables the lib sets on the
 * stack (framework defaults -> site / page / runtime overrides):
 *   --icon-stacker-size, --icon-stacker-size-hover, --icon-stacker-scale,
 *   --icon-stacker-offset, --icon-stacker-gap,
 *   --icon-stacker-opacity (the proximity value the lib computes from the
 *   pointer's distance), --icon-stacker-opacity-near (keyboard focus)
 * Colors are runtime theme tokens, so both themes just work.
 */
.icon-stacker {
  position: fixed;
  z-index: 1030;
  display: flex;
  align-items: center;
  gap: var(--icon-stacker-gap, 0.625rem);
  opacity: var(--icon-stacker-opacity, 1);
  transition: opacity 0.12s linear;
}
.icon-stacker:focus-within {
  opacity: var(--icon-stacker-opacity-near, 1);
}
.icon-stacker-bottom-right {
  bottom: var(--icon-stacker-offset, 1.25rem);
  right: var(--icon-stacker-offset, 1.25rem);
}
.icon-stacker-bottom-left {
  bottom: var(--icon-stacker-offset, 1.25rem);
  left: var(--icon-stacker-offset, 1.25rem);
}
.icon-stacker-top-right {
  top: var(--icon-stacker-offset, 1.25rem);
  right: var(--icon-stacker-offset, 1.25rem);
}
.icon-stacker-top-left {
  top: var(--icon-stacker-offset, 1.25rem);
  left: var(--icon-stacker-offset, 1.25rem);
}
.icon-stacker-vertical {
  flex-direction: column;
}
.icon-stacker-vertical.icon-stacker-bottom-right, .icon-stacker-vertical.icon-stacker-bottom-left {
  flex-direction: column-reverse;
}
.icon-stacker-horizontal {
  flex-direction: row;
}
.icon-stacker-horizontal.icon-stacker-bottom-right, .icon-stacker-horizontal.icon-stacker-top-right {
  flex-direction: row-reverse;
}

.icon-stacker-item {
  position: relative;
  display: block;
  flex: 0 0 auto;
  width: var(--icon-stacker-size, 2.5rem);
  height: var(--icon-stacker-size, 2.5rem);
  padding: 0;
  border: 0;
  background: none;
  color: inherit;
  text-decoration: none;
  border-radius: 50%;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.icon-stacker-item:focus-visible {
  outline: none;
}
.icon-stacker-item:hover, .icon-stacker-item:focus-visible {
  z-index: 1;
}
.icon-stacker-item:hover .icon-stacker-face, .icon-stacker-item:focus-visible .icon-stacker-face {
  transform: scale(var(--icon-stacker-scale, 1.3));
  box-shadow: 0 8px 24px rgba(17, 24, 39, 0.12);
  color: var(--bs-primary);
}
.icon-stacker-item:hover .icon-stacker-label, .icon-stacker-item:focus-visible .icon-stacker-label {
  opacity: 1;
  visibility: visible;
  transition-delay: 0s;
}
.icon-stacker-item:focus-visible .icon-stacker-face {
  outline: 2px solid var(--bs-primary);
  outline-offset: 2px;
}
.icon-stacker-item:active .icon-stacker-face {
  transform: scale(calc(var(--icon-stacker-scale, 1.3) - 0.08));
}

.icon-stacker-face {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--genus-card-bg, var(--bs-body-bg));
  color: var(--bs-body-color);
  border: 1px solid var(--bs-border-color-translucent);
  box-shadow: 0 2px 8px rgba(17, 24, 39, 0.08);
  font-size: calc(var(--icon-stacker-size, 2.5rem) * 0.5);
  transform-origin: center;
  transition: transform 0.18s ease, box-shadow 0.18s ease, color 0.18s ease;
  will-change: transform;
}
.icon-stacker-face i {
  line-height: 1;
}
.icon-stacker-face .icon-stacker-image {
  width: 58%;
  height: 58%;
  object-fit: contain;
  pointer-events: none;
}

.icon-stacker-label {
  position: absolute;
  padding: 0.3rem 0.65rem;
  border-radius: 0.2rem;
  background: var(--bs-emphasis-color);
  color: var(--bs-body-bg);
  font-size: 0.8rem;
  font-weight: 500;
  line-height: 1.2;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0s linear 0.18s;
}

.icon-stacker-vertical .icon-stacker-label {
  top: 50%;
  transform: translate(0, -50%);
}
.icon-stacker-vertical.icon-stacker-bottom-right .icon-stacker-label, .icon-stacker-vertical.icon-stacker-top-right .icon-stacker-label {
  right: calc(100% + 0.5rem + calc((var(--icon-stacker-scale, 1.3) - 1) * var(--icon-stacker-size, 2.5rem) / 2));
  transform: translate(0.35rem, -50%);
}
.icon-stacker-vertical.icon-stacker-bottom-left .icon-stacker-label, .icon-stacker-vertical.icon-stacker-top-left .icon-stacker-label {
  left: calc(100% + 0.5rem + calc((var(--icon-stacker-scale, 1.3) - 1) * var(--icon-stacker-size, 2.5rem) / 2));
  transform: translate(-0.35rem, -50%);
}
.icon-stacker-vertical .icon-stacker-item:hover .icon-stacker-label,
.icon-stacker-vertical .icon-stacker-item:focus-visible .icon-stacker-label {
  transform: translate(0, -50%);
}

.icon-stacker-horizontal .icon-stacker-label {
  left: 50%;
}
.icon-stacker-horizontal.icon-stacker-bottom-right .icon-stacker-label, .icon-stacker-horizontal.icon-stacker-bottom-left .icon-stacker-label {
  bottom: calc(100% + 0.5rem + calc((var(--icon-stacker-scale, 1.3) - 1) * var(--icon-stacker-size, 2.5rem) / 2));
  transform: translate(-50%, 0.35rem);
}
.icon-stacker-horizontal.icon-stacker-top-right .icon-stacker-label, .icon-stacker-horizontal.icon-stacker-top-left .icon-stacker-label {
  top: calc(100% + 0.5rem + calc((var(--icon-stacker-scale, 1.3) - 1) * var(--icon-stacker-size, 2.5rem) / 2));
  transform: translate(-50%, -0.35rem);
}
.icon-stacker-horizontal .icon-stacker-item:hover .icon-stacker-label,
.icon-stacker-horizontal .icon-stacker-item:focus-visible .icon-stacker-label {
  transform: translate(-50%, 0);
}

@media (hover: none) {
  .icon-stacker-item:hover:not(:focus-visible) .icon-stacker-face {
    transform: none;
    box-shadow: 0 2px 8px rgba(17, 24, 39, 0.08);
  }
  .icon-stacker-item:hover:not(:focus-visible) .icon-stacker-label {
    opacity: 0;
    visibility: hidden;
  }
}
@media (prefers-reduced-motion: reduce) {
  .icon-stacker,
  .icon-stacker-face,
  .icon-stacker-label {
    transition: none;
  }
}
@media print {
  .icon-stacker {
    display: none;
  }
}