# Neon Foundry: Arena Survival Benchmark

Build a single-file HTML5 Canvas bullet hell survival game that serves as a strenuous arena survival benchmark.

## Requirements
- **Theme:** Neon foundry (cyan, ember, smoke).
- **Format:** Arena survival.
- **Controls:** WASD/Arrows to move, Space to dash, auto-fire towards mouse. Touch and drag for mobile.
- **Core Mechanics:** Small, clear player hitbox (a core dot). Graze meter that builds up score multiplier when bullets pass very close.
- **Phases:** 
  - Phase 1: Seeker drones and simple radial bursts.
  - Phase 2: Pulse grids and sweeping lines.
  - Phase 3: The Foundry Core boss fight, featuring dense bullet spirals and grid traps.
- **Upgrades:** After Phase 1 and 2, pause the game and offer a choice of 3 upgrades (e.g., Spread Shot, Graze Radius, Fire Rate).
- **Panic:** A screen-clear bomb with limited charges (press 'B' or tap bomb icon).
- **Constraints:** Single HTML file, no external assets, responsive canvas, offline high score persistence.