megh-bari/pattern-craft — reverse-engineered prompt

Build me a polished website called Pattern Craft where developers and designers can browse a big collection of modern background patterns and gradients for websites and apps.

I want it to feel like a design gallery. Show each pattern as a nice preview card, let users filter by categories like gradients, geometric, decorative, and effects, and let them click a pattern to open a larger live preview. Each pattern should include a clean code snippet that works in React or Next.js with Tailwind, with a simple copy button so people can paste it into their own project.

Please include favorites so users can save patterns they like, smooth navigation back to where they were scrolling, and make the whole site responsive and fast. The visual style should be modern, minimal, and developer friendly. Use Next.js, TypeScript, and Tailwind. If you need current docs or examples, look them up online.