🎓 Student Management GUI (Tkinter)

A colorful, scrollable Python GUI to manage students, subjects, and grades by promotion — built with Tkinter.

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📦 Features

• 🎓 Add / remove students
• 📚 Add / remove subjects
• 📝 Assign grades per subject and student
• 📂 Data saved in student_data.json
• 🎨 Scrollable + centered UI

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🚀 How to Run

git clone https://github.com/YOUR_USERNAME/student_management_gui.git
cd student_management_gui
python main.py