9138ac1098
Addresses critical and high-severity findings from UI audit: - C1: Define missing CSS tokens (--hover, --bg-primary/secondary/tertiary) fixing broken hover states and Slides Builder backgrounds - C2: Chart colors now read CSS custom properties at render-time via getChartTheme(), adapting tooltip, ticks, and grid to dark mode - C3: Multi-select ARIA fixed — label elements now carry role="option" and aria-selected for valid listbox semantics - H1/M1: Remove unused --gold and duplicate --primary tokens; replace all var(--primary) with var(--accent) throughout App.css - H3/H4: Focus-visible outlines added to all custom interactive elements (chips, controls, year buttons, hero button, multi-select trigger) - H5: access-badge--full hardcoded colors replaced with design tokens - H7: aria-pressed added to all chart toggle buttons - L1: Hardcoded #fff/white replaced with var(--text-inverse) - M4: index.html now preloads DM Serif Display, Outfit, and IBM Plex Sans Arabic — all fonts actually used in the app Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>