I need a fully custom-built website that showcases a searchable, filterable product catalog. The site must be responsive, fast, and easy for me to update without relying on WordPress or Shopify. A lightweight tech stack such as HTML5, CSS3, JavaScript with a Node.js or PHP back end and a MySQL or PostgreSQL database would suit me well, but I’m happy to hear alternative suggestions that keep performance and security in mind. Core deliverables I’ll use to accept the project: • Front-end interface designed for mobile and desktop, including category navigation, product grids, detail pages, and an intuitive search/filter bar. • Back-end admin panel where I can add, edit, delete, and reorder products, upload images, and manage categories. • Basic SEO foundations (clean URLs, meta tags, sitemap.xml) and Google Analytics integration. • Deployment to my preferred hosting environment with clear setup documentation. Please build with clean, commented code so I can maintain it later, and keep the design modern yet simple—think clear typography, plenty of whitespace, and fast-loading images. If you have recent examples of similar custom catalog sites, that will help me gauge your approach.