pr-body.md

Summary

• Smoothly animates the campaign progress bar when funding percentage changes after a pledge
• Uses 0.4s cubic-bezier transition for responsive feel
• Animation only triggers on update, not on initial page load

Changes

• CampaignCard.tsx: Added useRef to track previous percent and useState to conditionally apply animation class after initial render
• index.css: Added .progress-bar-fill class with CSS transition on width

Acceptance criteria

• Progress bar animates on funding percentage change
• Animation duration is short enough to feel responsive
• Animation does not trigger on initial page load