Add comprehensive tempo conversion system supporting:
- BPM (beats per minute) as base unit
- Musical note durations: whole, half, quarter, eighth, sixteenth, thirty-second
- Dotted notes (1.5x duration): dotted-half, dotted-quarter, dotted-eighth, dotted-sixteenth
- Triplet notes (2/3 duration): quarter-triplet, eighth-triplet, sixteenth-triplet
- Time units: milliseconds, seconds, Hertz
Technical implementation:
- Created lib/tempo.ts with custom measure definition
- Extended lib/units.ts with tempo integration and reciprocal conversion logic
- Added tempo category color (orange #F97316) to globals.css
- Conversion formula: milliseconds per beat = 60000 / BPM
- Special handling for BPM ↔ time unit conversions using reciprocal relationship
The tempo converter integrates seamlessly with existing UX:
- Appears as "Tempo / BPM" category in category selector
- Supports all features: search, favorites, history, visual comparison, draggable bars
- Enables musicians to convert between BPM and note durations for tempo calculations
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Fixed the colored bar segments not showing:
🎨 Direct Color Implementation:
- Added getCategoryColorHex() function to return actual hex values
- Changed from CSS variables to direct backgroundColor
- No more var(--color-*) that wasn't resolving
- Direct hex colors like #3B82F6 for length, #10B981 for mass, etc.
✨ Visual Improvements:
- Taller bars (h-8, 32px) for better visibility
- Drop shadow on percentage labels for readability
- White text on bars >30% filled
- Foreground color text on smaller bars
- pointer-events-none on overlay to prevent interaction issues
🔧 Updated Components:
- MainConverter: Import and use getCategoryColorHex()
- VisualComparison: Accept hex color string directly
- lib/units: Added getCategoryColorHex() with all 23 colors
The bars will now definitely show with vibrant colors!
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Enhanced globals.css based on pastel-ui best practices:
Features added:
- @source directives for automatic component discovery
- @custom-variant for dark mode support
- Complete design system with :root and .dark themes
- OKLCH color space for better color precision
- shadcn/ui compatible color tokens (background, foreground, card, etc.)
- @theme inline block with Tailwind v4 color definitions
- 23 category colors converted to OKLCH format
- Custom animations system with 8 predefined animations
- @layer base with global styles
- Smooth transitions and custom scrollbar styling
- Screen reader utility class (.sr-only)
- Animation keyframes for all custom animations
Design system includes:
- Light/dark mode support with OKLCH colors
- Semantic color tokens (primary, secondary, muted, accent, destructive)
- Border radius variable (--radius)
- Smooth 200ms transitions
- Category-specific colors for all 23 unit types in OKLCH
- Custom animations: fadeIn, slideUp/Down, slideInRight/Left, scaleIn, bounceGentle, shimmer
Accessibility features:
- Proper outline ring on focus
- Theme transition prevention during theme switch
- Custom scrollbar with hover states
- Screen reader only utility
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Set up complete Next.js 16 development environment:
- Next.js 16.0.1 with App Router and Turbopack
- React 19.2.0 with TypeScript 5.9
- Tailwind CSS 4.1.17 with custom category colors
- ESLint 9 with Next.js config
- Static site generation enabled (output: 'export')
Project structure:
- app/ directory with layout, page, and globals.css
- Tailwind config with 23 category-specific colors
- TypeScript config with strict mode and path aliases
- Complete .gitignore for Next.js projects
Dependencies installed:
- convert-units 2.3.4 for unit conversions
- All React 19 and Next.js 16 dependencies
- Development tooling (TypeScript, ESLint, Tailwind)
Ready for Phase 2: Core conversion engine implementation
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
