Title: Typing Aurora Game Prompt: A typing game where clean keystrokes ignite the northern lights. Build a neon arena with a word runway, live input, and a coaching sidebar with difficulty tiers. It should feel electric yet calm — mint and gold auroras over deep pine black. Design: A split layout pairs a full aurora arena with particle bursts against a pine-black sidebar of difficulty buttons, run stats, a next-key keyboard, and a coach log. Words render as large serif chips with per-letter hit/miss coloring, a progress bar tracks the runway, and aurora bands breathe above the canvas. Visual techniques: - Canvas aurora bands with hue-rotate breathing and particle bursts - Per-letter hit/miss coloring with pop keyframes on completion - Live mini-keyboard highlighting the next required key - HUD chips for WPM, accuracy, streak, and time - Mint-on-pine palette with gold combo callouts Interaction model: Users pick difficulty, start timed 60-second runs, type words with space to submit, earn streaks and WPM with sound feedback, refresh word sets, and read coach feedback that adapts to accuracy while particles reward clean words.