Simple Calculator Web App

A simple web application that performs basic arithmetic operations using FastAPI backend and vanilla HTML/CSS/JS frontend.

Setup

1. Install dependencies:

pip install -r requirements.txt

2. Run the application:

uvicorn main:app --reload

3. Open your browser and navigate to:

http://localhost:8000

Features

• Addition and subtraction operations
• Clean and modern UI
• Real-time calculation results
• Error handling for invalid inputs