Email-Password Login Page Build

I’d like a clean, secure login page that authenticates users solely through the classic Email and Password flow—no social buttons or two-factor steps this time. What I need is the full working module: the front-end form, basic validation, and the back-end logic that checks credentials against my existing user table and handles common states like “forgot password” and locked accounts.

Please keep the code lightweight and standards-compliant (HTML5, CSS3, vanilla JS or a framework you’re comfortable with), follow best practices for hashing and salting, and make sure the component is responsive so it looks good on mobile as well as desktop.

Once built, hand over all source files plus a short README that explains environment variables, setup steps, and where to plug in my database connection string.