All chart components used `hsl(var(--chart-X))` but `--chart-X` holds a
full oklch value, not bare HSL components — making the expression invalid
CSS. Browsers silently fell back to black, so bars/areas/heatmap cells were
invisible against the dark background.
- Replace `hsl(var(--chart-X))` with `var(--color-chart-X)` across all
runtime chart components and the landing feature section
- Fix heatmap opacity using `color-mix(in oklch, ...)` instead of the
invalid `hsl(var(--chart-3) / 0.3)` syntax; switch to foreground color
so cells blend with the neutral theme in both light and dark mode
- Raise dark-mode chart-2 through chart-5 lightness values so they
contrast clearly against the dark background
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
- Add dictionary-based i18n system (en/zh) with React Context provider
- Extract all hardcoded text from landing components into translation dictionaries
- Auto-detect browser language, persist preference in localStorage
- Add language switcher (EN/中文) to footer
- Add Noto Serif SC font for Chinese serif headings
- Rewrite about page Chinese copy with user-provided translation
- Rewrite about page with Multica name origin (Multics → multiplexed
agents) and project philosophy
- Replace placeholder changelog with real entries from git history
(v0.1.0–v0.1.3)
- Add variant prop to LandingHeader (dark/light) so it renders
correctly on white-background subpages
- Extract landing page into separate component files
