# CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

## Commands

```bash
npm run dev       # Start dev server with HMR (hot module reloading)
npm run build     # Production build to dist/
npm run preview   # Preview production build locally
npm run lint      # Run ESLint on all files
```

## Tech Stack

- **React 19** with plain JavaScript (no TypeScript)
- **Vite 7** as build tool (uses `@vitejs/plugin-react` with Babel/Fast Refresh)
- **ESLint** with react-hooks and react-refresh plugins

## Project Purpose

Frontend for a **Unity 3D multiplayer game deployment**. Target users are testers who need to:
- Access/log in to the game platform
- Download the Unity game client
- Launch and play the multiplayer game

## Project Structure

Currently a minimal Vite + React starter. `src/main.jsx` is the entry point that mounts `src/App.jsx` to `#root`. No routing, state management libraries, or API layer are set up yet — these will be added as the project develops.

## ESLint Config

Uses the new flat config format (`eslint.config.js`). The `no-unused-vars` rule ignores variables matching `^[A-Z_]` (uppercase constants are exempt).