Replace ~150 hardcoded Tailwind color classes (bg-zinc-*, text-zinc-*,
border-white/*, text-cyan-*, bg-cyan-*) with CSS custom properties
(--pc-*) across all 17 components.
Add @theme block in index.css for Tailwind v4 theme-aware utility
classes (bg-pc-elevated, text-pc-text, border-pc-border, etc.).
Add --pc-hover, --pc-hover-strong, --pc-separator variables per theme
(white/alpha for dark/OLED, black/alpha for light).
Theme switcher (dark/light/OLED) now actually works — all UI elements
respond to theme changes in real-time.
Fixes#55
- Add ThemeContext with CSS custom properties for all base colors
- Three theme modes: Dark (default), Light, OLED Black
- Six accent colors: Cyan, Violet, Emerald, Amber, Rose, Blue
- Theme switcher dropdown in header (palette icon)
- Persisted in localStorage
- CSS variables replace hardcoded hex colors in index.css and components
- i18n support (EN/FR) for theme labels
- Catches render errors and shows a styled recovery UI instead of blank white screen
- Try Again button re-renders, Reload button refreshes the page
- Error details shown in a collapsible pre block
- Full i18n support (EN/FR)
- Wraps the entire app in main.tsx
