Login Form UI Validation

This mini project creates login form validation on the client side.

It checks whether username and password fields are filled correctly.

Login validation improves user experience before sending data to server.

Login validation logic:

1. Prevent form submission
2. Check empty fields
3. Validate password length
4. Display login errors

Basic login form structure.

Validation runs before login submission.

Learning Points:

• Login UI logic
• Client-side validation
• preventDefault usage
• Real authentication flow understanding