You're a designer who keeps spotting beautiful typography in the wild — on posters, packaging, websites, book covers — and immediately forgetting what it was called. **Font Crush** is a single-page app where you can save and organize typefaces that inspire you.

Each entry in your board should capture:
- **Font name** (e.g. "Playfair Display")
- **Category tag** (serif, sans-serif, display, monospace, handwritten)
- **Where you spotted it** — a short note like "coffee shop menu" or "album cover"
- **A sample sentence** you can type in and preview rendered in that font (load fonts from Google Fonts using a `<link>` tag inserted dynamically)
- **A mood tag** you pick from a fixed set: cozy, bold, elegant, playful, minimal, retro
- **Date saved** (auto-filled)

The board should display all saved fonts as cards in a masonry or grid layout. Each card shows the font name rendered in itself (if loadable from Google Fonts), the sample sentence preview, the category and mood badges, and the spotted-in note.

Users should be able to filter cards by category or mood tag, and delete any entry they no longer want. All data persists in `localStorage` so nothing is lost on refresh.

The overall aesthetic should feel like a designer's pinboard — warm, typographically rich, visually satisfying.