Vibe-to-Code: App from Vibes

Build me a working prototype of this app idea:

"[DESCRIBE_YOUR_APP_IN_CASUAL_LANGUAGE — e.g., 'a todo app but make it feel like a game, with XP points and level ups when you complete tasks']"

Rules for vibe coding:
- Ship fast — working > perfect
- Use the simplest tech that works (Next.js + Tailwind + a JSON file or SQLite)
- Make it look good out of the box (nice colors, spacing, animations)
- Add delightful micro-interactions (hover effects, transitions, loading states)
- Mobile-first — it should feel good on a phone
- Include placeholder data so it looks real immediately

Output:
1. The complete app in a single page (or minimal files)
2. Inline comments explaining any non-obvious decisions
3. A list of "v2 ideas" — things to add next if the user loves it

Prioritize: **vibes > features**. A beautiful app with 3 features beats an ugly app with 10.