I need an e-commerce website where each product page lets visitors download a PDF datasheet from a clearly labelled link. The store will launch with between one and five product categories, so the navigation and backend have to remain tidy and scalable as the catalogue grows. Core requirements • Build an e-commerce platform (any modern solution such as Shopify, WooCommerce, or a lightweight custom framework is fine—speed and ease of maintenance matter most). • Create the category structure (1–5 categories to start) and upload a small sample of products so I can see the flow end-to-end. • Add a simple, fool-proof way for me to attach or replace datasheet PDFs on each product—drag-and-drop in the admin panel is ideal. • On the front end, place an obvious “Download Datasheet” link or button that opens the file in a new tab. The link must be SEO-friendly and work on mobile. Acceptance criteria 1. Fully responsive store passes Google Mobile-Friendly Test. 2. Category menu shows only live categories and updates automatically as new ones are added. 3. Uploading a new PDF from the dashboard instantly updates the corresponding product page without broken links. 4. A short hand-off guide (text or screen-recording) walks me through adding a new product and attaching its datasheet. If you already have a favourite stack or plugin that handles document management smoothly, let me know in your proposal along with any live examples.