Python GUI Authentication System

This repository contains two interconnected Python GUI applications:

1. A login system with username/password authentication
2. A qualification checker that verifies if users have sufficient funds for a trip

Features

• Secure password entry (hidden input)
• Input validation
• Clean, modern interface
• Proper error handling
• Modular design with separate classes
• Connected applications (login opens qualification checker)

Requirements

• Python 3.6+
• Tkinter (usually included with Python)

Installation

1. Clone the repository:

   git clone https://github.com/your-username/python-gui-auth.git
   cd python-gui-auth