Animation Foundation with Framer Motion

[olucasandrade]

Task: Animation Foundation with Framer Motion

Description

Build reusable animation system using Framer Motion (already installed). Create shared motion variants, animated component wrappers, page transitions, and micro-interactions. Respect prefers-reduced-motion for accessibility.

Acceptance Criteria

• Animation utilities created (src/animations/variants.ts, transitions.ts)
• Shared motion variants defined (fade, slide, scale, etc.)
• useReducedMotion hook implemented
• Animated wrapper components created (AnimatedPanel, FadeIn, SlideIn)
• Page transitions working smoothly (<300ms)
• Micro-interactions on hover/click/focus states
• All animations respect prefers-reduced-motion CSS media query
• Loading skeletons replace spinners
• Success/error state animations implemented
• 60fps performance on modern hardware

Technical Details

Implementation Approach

1. Create animation architecture:

   src/animations/
   ├── variants.ts        # Reusable motion variants
   ├── transitions.ts     # Timing presets
   └── hooks/
       └── useReducedMotion.ts
   

2. Build motion wrapper components:

   src/components/motion/
   ├── AnimatedPanel.tsx  # Panel wrapper with animations
   ├── FadeIn.tsx         # Fade animation wrapper
   ├── SlideIn.tsx        # Slide animation wrapper
   └── index.ts           # Exports
   

3. Wrap existing components (RequestPanel, ResponsePanel, HistoryPanel)
4. Add page-level transitions using Framer Motion's AnimatePresence
5. Implement loading skeleton components

Key Considerations

• Use will-change CSS property sparingly (only for animating elements)
• Lazy load heavy animations
• Monitor animation performance with React DevTools Profiler
• All animations should complete in <300ms as per PRD
• Create animation variants library for consistency

Files Affected

• src/animations/ (new directory)
• src/components/motion/ (new directory)
• src/app/components/RequestPanel.tsx (wrap with motion)
• src/app/components/ResponsePanel.tsx (wrap with motion)
• src/app/components/HistoryPanel.tsx (wrap with motion)
• src/app/[locale]/page.tsx (add page transitions)

Dependencies

• Task 001 (Theme System) - animations need theme colors
• Framer Motion library (already installed)

Effort Estimate

• Size: M (Medium)
• Hours: 12-16 hours
• Parallel: false (depends on Task 001)

Definition of Done

• Code implemented with reusable animation utilities
• All components wrapped with appropriate animations
• Page transitions working smoothly
• prefers-reduced-motion fully respected
• Performance tested (60fps on target hardware)
• Animation performance profiled
• Documentation added for animation system
• Code reviewed
• Merged to main branch