Practice session improvements:
- Auto-submit when correct answer entered with ≤2 corrections
- Show celebration animation ("Perfect!") before auto-submit
- Display prefix sum checkmarks/arrows before clicking "Get Help"
New blog post: "The Fluxion of Fortune"
- Poem about Newton losing money in the South Sea Bubble
- Hero image of Newton with his calculations and sinking ships
- Custom CSS for properly centered x-bar notation
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Thomas Hallock