A Roman-style Streamlit application that encodes and decodes text using the classical Caesar Cipher. The interface uses parchment colors and traditional typography inspired by ancient Rome.

• Encode and decode messages with a shift key from 0 to 25
• Preserves uppercase, lowercase, numbers, spaces, and punctuation
• Elegant classical user interface styling
• Instant transformation of user input
• Simple and intuitive controls

The Caesar Cipher shifts each letter in the alphabet by a fixed number of positions.
Example with shift 3: A becomes D, B becomes E, and so on..
The process wraps around the alphabet automatically..

1. Install Python 3
2. Install Streamlit
3. Save the application file
4. Run the app using:
   streamlit run app.pyy

1. Choose Encode or Decode mode
2. Select a shift key
3. Enter a message
4. Press Transform Message to see the result

• Streamlit interface for user interaction
• Custom CSS for Roman aesthetic design
• Python function implementing Caesar Cipher logic

• Python 3.8 or higher
• Streamlit library

This project is free to use and modify for educational purposes.