E-commerce CSS Overhaul & Animations

Our online store needs a fresh, cohesive look driven purely by rock-solid CSS. I have the full HTML and existing stylesheets ready; what I need is a master who can

• restyle the homepage, every product page, and the entire checkout flow so the brand feels consistent everywhere,
• iron out long-standing layout bugs and browser quirks, and
• add tasteful, lightweight CSS animations that lift user engagement without slowing pages down.

The code has to stay lean, responsive, and fully cross-browser. I’m happy to supply Figma references, brand colors, and any SVG assets you require, and I’ll test internally on Chrome, Safari, Firefox, and Edge before signing off.

Acceptance criteria
1. New stylesheet(s) pass W3C validation and Lighthouse performance checks.
2. Layout renders flawlessly from 360 px up to 4K.
3. Animations respect prefers-reduced-motion and never block interaction.
4. No critical CSS warnings in console across the browsers above.

Push to a Git branch so I can review diffs; after merge we’ll schedule a quick round of tweaks and call it done.