Add role=status/alert + aria-live to loading/error sections (matching the pattern already applied to home/search/catalog). Add missing :focus-visible states to the buying-flow controls that had none: add-to-cart/buy-now/wishlist/compare/share buttons, variant colour-swatch and size-chip pickers, and the star rating selector. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>