Build a color palette generator called "ChromaKit".
- Generate random harmonious 5-color palettes on spacebar press
- Harmony modes: Complementary, Analogous, Triadic, Split-Complementary, Monochromatic
- Click a color to lock it (stays when regenerating)
- Click color code to copy (hex)
- Export options: CSS variables, Tailwind config, SCSS variables, JSON
- Adjust individual colors: hue/saturation/lightness sliders
- Contrast checker: shows WCAG AA/AAA pass/fail for text combinations
- Save palettes to favorites (localStorage)
Design: full-width color bars, clean controls at bottom, minimal UI.