Build a single-page app where film lovers can save and browse their favorite movie quotes.

Each quote entry should capture:
- The **quote text** itself
- The **movie title** and **year**
- The **character** who said it (optional)
- A personal **mood tag** (e.g. motivating, hilarious, heartbreaking, iconic)
- The **date added**

Users should be able to:
1. **Add** new quotes via a simple form
2. **Browse** all saved quotes in a card-based layout showing the quote prominently
3. **Filter** quotes by mood tag so they can find the right quote for the right moment
4. **Delete** quotes they no longer want

All data must persist in `localStorage` so quotes survive page refreshes. The visual design should feel cinematic — think dark background, film-grain aesthetic, serif quote typography. The app should work entirely in the browser with no backend.