Galleries
Galleries and the shared lightbox.
Gallery interaction test set
Twelve fixture images exercise mixed contrast, captions, focus states, and varied composition.
Multiple gallery isolation check
A second gallery on the same page uses a separate lightbox shell, controls, captions, thumbnail rail, and accessible ID set.
Responsive gallery test
Eligible raster images: the grid and lightbox serve the mobile variant below 768px, and pinch/double-tap zoom hot-swaps to the full image.
