wtf is student-management-system?

This is a beginner friendly Student Management System built with plain HTML, CSS, and JavaScript, no frameworks, no backend, and no build tools. You open index.html in a browser and it works immediately, with all data saved to the browser's Local Storage so your students are still there the next time you open the page on the same browser. The project was made as a first year Computer Science exercise to practice DOM manipulation, form validation, and Local Storage. The app includes a sign up and login screen using a username and password, though it is meant only as a demo of how authentication flows work and is not secure: passwords are stored as plain text in Local Storage rather than hashed, and anyone with access to the browser's developer tools could see them, so it should not be used for anything sensitive. Once logged in, a dashboard shows a welcome message, total student counts broken down by gender, average age, a quick search bar, and a preview of recently added students. The core student management features let you add, edit, and delete students with a confirmation popup, view everyone in a searchable and sortable table, filter by class and section, and page through large lists. Form validation catches empty required fields, invalid email formats, non numeric phone numbers, and duplicate student IDs, with friendly inline error messages. Extra features include a dark mode toggle, exporting the student list to a CSV file, importing students from a CSV file, an optional profile picture per student, and toast notifications for success and error messages. Because everything lives in one browser's Local Storage with no shared database, this tool works best for a single teacher or small tuition center managing their own students from one computer. It is not suited for multiple teachers sharing data, a large school with many students needing access control, or anything requiring real data security, since Local Storage is unencrypted and gets wiped if browser data is cleared. The README lists future improvements such as moving to a real backend with a database, properly hashing passwords, and supporting multiple teacher accounts, none of which are built yet.