Cross-Platform E-Commerce Website Build -- 2

I’m launching a new online store and need the entire site designed, developed, and made fully responsive so shoppers enjoy the same smooth experience on desktop, mobile, and tablet. The project covers everything from laying out a modern product catalogue to wiring up a secure checkout that accepts both credit/debit cards and PayPal.

Here’s what I’m expecting:
• A visually appealing, brand-aligned storefront with intuitive navigation and fast load times.
• Seamless payment gateway integration for the two methods above, including end-to-end testing of successful and failed transactions.
• A mobile-first responsive layout that automatically adapts to all major screen sizes.
• An admin area where I can add or edit products, track inventory, view orders, and issue refunds.
• SSL configuration, GDPR-friendly data handling, on-page SEO basics, and analytics hooks so I can monitor performance.
• Deployment support and clear documentation so I can maintain the site after hand-off.

You’re free to propose the stack—whether that’s a custom build or a framework like Shopify, WooCommerce, Magento, or a modern JavaScript solution—so long as the final result meets the functionality and device-compatibility goals outlined above.