- Replace Google Fonts CDN with self-hosted FontSource packages
- Add @fontsource-variable/inter for variable Inter font
- Add @fontsource/ibm-plex-mono with weight 400 for monospace font
- Create src/lib/utils.ts with shadcn's cn utility function
- Install tailwind-merge for intelligent Tailwind class merging
- Replace all clsx usages with cn utility across components
- LookupInput.tsx: 7 replacements
- ErrorCard.tsx: 1 replacement
- Property.tsx: 2 replacements
- Remove Google Fonts URL import from globals.css
- Migrate from Tailwind CSS 3.x to 4.1.15
- Replace autoprefixer with @tailwindcss/postcss 4.1.15
- Update PostCSS configuration for Tailwind v4 compatibility
- Convert globals.scss to globals.css for CSS-first configuration
- Remove legacy tailwind.config.cjs in favor of CSS-based config
- Update all component imports to use new globals.css
- Remove old.tsx.disabled file
