v0.5.73 - Tailwind CSS v4

Tailwind CSS v4 Migration

Changes

• Upgraded to Tailwind 4.1 via @tailwindcss/vite plugin
• New CSS syntax: @import "tailwindcss" replaces @tailwind directives
• Theme in CSS: Maple color palette now defined in @theme block
• Class-based dark mode: Preserved via @custom-variant dark

Removed (no longer needed in v4)

• tailwind.config.js - config now in CSS
• postcss.config.js - PostCSS built into Tailwind v4
• autoprefixer - built into Tailwind v4
• postcss - using Vite plugin instead

Verification

• ✅ 21 tests pass
• ✅ TypeScript OK
• ✅ Dead code check clean

Full Changelog: v0.5.72...v0.5.73