I need a complete online store built from the ground up to sell physical products. The platform is still open—Shopify, WooCommerce, Magento or any comparable solution is fine—as long as it delivers a smooth catalogue-to-checkout experience and can scale with growing inventory. Key deliverables: • Responsive storefront matching my brand guidelines • Product catalogue, inventory and variant management • Secure checkout with major payment gateways and real-time shipping rates • Order tracking and customer email notifications • Basic on-page SEO, Google Analytics integration and speed optimisation • Short hand-over guide so I can add products and process orders myself The finished site must load quickly, display perfectly on mobile and desktop, and complete a test purchase end-to-end without errors. If you have a preferred stack, theme framework or extensions that meet these goals, let me know and we can lock in the best approach.