# Project Brief: Gridfinity Calculator

A simple, lightweight web-based calculator for Gridfinity baseplates and bins.

## Core Requirements
- Enter drawer/container dimensions (width, height, depth).
- Support for both inches and millimeters.
- Custom overrides for Gridfinity specifications (default 42x42x7mm).
- Calculate required baseplates (full grids).
- Calculate bin vertical unit height (7mm increments), accounting for base thickness.
- No heavy frameworks (Vanilla TS/Vite).
- Single-page optimized build.

## Goals
- Provide an accurate and easy-to-use tool for Gridfinity makers.
- Allow for non-standard scaling to fit specific drawer sizes perfectly.
- Clean, responsive UI with Tailwind CSS.