Add comprehensive README documentation

README.md

@@ -1,36 +1,32 @@
-This is a [Next.js](https://nextjs.org) project bootstrapped with [`create-next-app`](https://nextjs.org/docs/app/api-reference/cli/create-next-app).
+# Stalen Deuren Configurator - Proinn.nl
 
-## Getting Started
+Premium 3D configurator voor stalen deuren en kozijnen, gebouwd met React Three Fiber en Next.js.
 
-First, run the development server:
+🔗 **Live Demo:** [proinn.youztech.nl](https://proinn.youztech.nl)
 
-```bash
+## ✨ Features
+
+- 🎨 **Premium 3D Visualizer** - React Three Fiber met realtime updates
+- ⚙️ **Geavanceerde Configuratie** - Deur types, dimensies, afwerkingen
+- 📐 **Slimme Berekeningen** - Automatische dimensie validatie
+- 🎯 **Premium UI/UX** - Shadcn/UI met responsive design
+
+## 🚀 Quick Start
+
+\`\`\`bash
+npm install
 npm run dev
-# or
+\`\`\`
-yarn dev
-# or
-pnpm dev
-# or
-bun dev
-```
 
-Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.
+Open [http://localhost:3000](http://localhost:3000)
 
-You can start editing the page by modifying `app/page.tsx`. The page auto-updates as you edit the file.
+## 📦 Tech Stack
 
-This project uses [`next/font`](https://nextjs.org/docs/app/building-your-application/optimizing/fonts) to automatically optimize and load [Geist](https://vercel.com/font), a new font family for Vercel.
+- Next.js 16 + React 19 + TypeScript
+- React Three Fiber + Three.js
+- Zustand + Tailwind CSS v4
+- Shadcn/UI + Vercel
 
-## Learn More
+## 📄 License
 
-To learn more about Next.js, take a look at the following resources:
+© 2026 Proinn B.V.
-
-- [Next.js Documentation](https://nextjs.org/docs) - learn about Next.js features and API.
-- [Learn Next.js](https://nextjs.org/learn) - an interactive Next.js tutorial.
-
-You can check out [the Next.js GitHub repository](https://github.com/vercel/next.js) - your feedback and contributions are welcome!
-
-## Deploy on Vercel
-
-The easiest way to deploy your Next.js app is to use the [Vercel Platform](https://vercel.com/new?utm_medium=default-template&filter=next.js&utm_source=create-next-app&utm_campaign=create-next-app-readme) from the creators of Next.js.
-
-Check out our [Next.js deployment documentation](https://nextjs.org/docs/app/building-your-application/deploying) for more details.