# Simple Calculator

Greenfield project. Implementation is driven by the Vexa AI-SDLC pipeline (Jira project TSC).

## Project Structure

```
/
├── index.html      # Calculator UI (semantic HTML5)
├── styles.css      # Responsive CSS layout and styling
├── calculator.js   # Calculation engine + UI wiring (plain JS, no build step)
├── README.md       # Project overview
└── CLAUDE.md       # This file
```

## Build Commands

No build system has been configured yet. Update this section once a language/framework is chosen and dependencies are added.

## Test Commands

No test suite has been configured yet. Update this section once testing infrastructure is in place.

## Development Commands

No dev server or REPL is configured yet. Update this section once the implementation begins.

## Architecture Notes

- **Domain**: Simple Calculator — arithmetic operations (add, subtract, multiply, divide at minimum).
- **Stack**: Plain HTML/CSS/JS — no framework or build step.
- `index.html` contains the full UI structure: operand inputs, operation buttons, calculate/clear buttons, result `<output>`, and an error `<p role="alert">`.
- `calculator.js` exposes a `calculate(a, b, operation)` function returning `{ result }` or `{ error }`, and an IIFE that wires the engine to the DOM.

## Code Style

No linter or formatter has been configured yet. Update this section once tooling is set up.