Built a premium sports-nutrition storefront for a Tunisia shop. The goal was a fast bilingual store that matches how customers buy: French and Arabic with RTL, cash on delivery, and WhatsApp orders instead of cards. I shipped the full path in Next.js and React: home, filtered catalog, product pages, cart, checkout, and confirmation. One visual system, real product photos, and honest catalog stats stay consistent on every screen. Motion follows reduced-motion preferences. Result: a shopper can browse, build a cart, and send a complete order on WhatsApp in the language they prefer.