Ehsheheyeye/Korus_Job_Sheet_2025 ? reverse-engineered prompt

Build me a simple job sheet web app for Korus, with a login screen, a main page, and an admin page.

I want it to feel clean and easy to use on desktop, with basic styling and a straightforward flow where someone can log in, view or fill out job sheet information, and an admin can manage or review the entries. Keep everything in plain JavaScript, HTML, and CSS, and make the pages work together smoothly.

Please make the layout look professional, include the necessary form fields and buttons, and make sure the login and admin parts are actually usable, not just static mockups. If anything is unclear, use sensible defaults and look up current docs online if you need to.