/* D2Gallery: lightweight local image gallery package for Data2Learn */
.d2-gallery__main {
  position: relative;
  isolation: isolate;
}
.d2-gallery__open {
  width: 100%;
  height: 100%;
  min-height: inherit;
  display: block;
  border: 0;
  padding: 0;
  margin: 0;
  cursor: zoom-in;
  color: inherit;
  background: transparent;
  position: relative;
}
.d2-gallery__open img {
  pointer-events: none;
}
.d2-gallery__zoom-hint {
  position: absolute;
  inset-inline-start: 16px;
  inset-block-end: 16px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--text);
  background: color-mix(in srgb, var(--background-2), transparent 18%);
  border: 1px solid color-mix(in srgb, var(--border-primary), transparent 42%);
  box-shadow: 0 12px 32px var(--elevation);
  font-size: 12px;
  font-weight: 900;
  opacity: 0;
  transform: translateY(8px);
  transition: .2s ease;
  backdrop-filter: blur(12px);
}
.d2-gallery__main:hover .d2-gallery__zoom-hint,
.d2-gallery__open:focus-visible .d2-gallery__zoom-hint {
  opacity: 1;
  transform: translateY(0);
}
.d2-gallery__nav {
  position: absolute;
  top: 50%;
  z-index: 3;
  width: 42px;
  height: 42px;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  color: var(--text);
  background: color-mix(in srgb, var(--background-2), transparent 14%);
  border: 1px solid color-mix(in srgb, var(--border-primary), transparent 40%);
  box-shadow: 0 12px 28px var(--elevation);
  cursor: pointer;
  opacity: 0;
  transform: translateY(-50%) scale(.96);
  transition: .2s ease;
  backdrop-filter: blur(12px);
}
.d2-gallery__nav--prev { inset-inline-start: 14px; }
.d2-gallery__nav--next { inset-inline-end: 14px; }
.d2-gallery__main:hover .d2-gallery__nav,
.d2-gallery__nav:focus-visible {
  opacity: 1;
  transform: translateY(-50%) scale(1);
}
.d2-gallery__nav:hover {
  color: var(--white);
  border-color: color-mix(in srgb, var(--primary-2), transparent 35%);
  background: color-mix(in srgb, var(--primary-1), transparent 20%);
}
.d2-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 12px;
  padding: 18px;
  color: #fff;
  background: rgba(3, 7, 11, .88);
  backdrop-filter: blur(18px);
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s ease;
}
.d2-lightbox.is-open {
  opacity: 1;
  pointer-events: auto;
}
.d2-lightbox__top,
.d2-lightbox__bottom {
  width: min(1120px, 100%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.d2-lightbox__counter,
.d2-lightbox__caption {
  font-size: 13px;
  color: rgba(255,255,255,.72);
  font-weight: 800;
}
.d2-lightbox__actions {
  display: flex;
  gap: 8px;
}
.d2-lightbox__btn,
.d2-lightbox__arrow {
  width: 42px;
  height: 42px;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.17);
  cursor: pointer;
  transition: .2s ease;
}
.d2-lightbox__btn:hover,
.d2-lightbox__arrow:hover {
  background: rgba(255,255,255,.15);
  border-color: rgba(255,255,255,.28);
}
.d2-lightbox__stage {
  width: min(1120px, 100%);
  min-height: 0;
  margin: 0 auto;
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: 22px;
}
.d2-lightbox__image {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: 18px;
  box-shadow: 0 24px 80px rgba(0,0,0,.38);
  transform: scale(var(--d2-zoom, 1));
  transform-origin: center;
  transition: transform .18s ease;
  user-select: none;
}
.d2-lightbox__arrow {
  position: absolute;
  top: 50%;
  z-index: 2;
  transform: translateY(-50%);
}
.d2-lightbox__arrow--prev { inset-inline-start: 14px; }
.d2-lightbox__arrow--next { inset-inline-end: 14px; }
.d2-lightbox__thumbs {
  display: flex;
  gap: 9px;
  overflow-x: auto;
  padding: 4px 2px 6px;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,.22) transparent;
}
.d2-lightbox__thumb {
  width: 62px;
  height: 50px;
  flex: 0 0 62px;
  padding: 2px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.18);
  background: rgba(255,255,255,.06);
  cursor: pointer;
  opacity: .66;
  transition: .2s ease;
}
.d2-lightbox__thumb.is-active,
.d2-lightbox__thumb:hover {
  opacity: 1;
  border-color: color-mix(in srgb, var(--primary-2), white 10%);
}
.d2-lightbox__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 9px;
}
html.d2-lightbox-lock,
html.d2-lightbox-lock body {
  overflow: hidden;
}
@media (max-width: 700px) {
  .d2-gallery__nav {
    opacity: 1;
    width: 36px;
    height: 36px;
  }
  .d2-gallery__zoom-hint {
    opacity: 1;
    inset-inline-start: 10px;
    inset-block-end: 10px;
    padding: 7px 10px;
  }
  .d2-lightbox {
    padding: 12px;
  }
  .d2-lightbox__stage {
    border-radius: 18px;
  }
  .d2-lightbox__arrow {
    width: 38px;
    height: 38px;
  }
}