I need a simple four-page static site (Home, About, Services, Contact) coded in pure HTML5 and CSS3, with just enough vanilla JavaScript for any small interactive touches we decide are useful. The layout must scale smoothly from large desktop screens down to mobile, keeping load times low and Core Web Vitals in the green. Code quality is important: I expect clear semantic markup, organised style sheets, and naming that makes future edits straightforward. Please structure the pages for easy on-page SEO—logical headings, alt text for images, and lightweight, minified assets. Deliverables • Complete static HTML/CSS/JS files for all pages • Fully responsive styling tested on major browsers and common mobile breakpoints • Optimised, ready-to-upload folder I can drop straight onto my host If you have a portfolio of equally clean, fast sites, a few links will help me pick quickly.