Elevate Site: Dark Theme Focus

My site is fully built and runs perfectly in a local environment; I will share the entire repository and setup guide once we start. The first task—and my highest priority—is a clean, consistent dark theme that applies across every page without sacrificing readability or performance. While doing so, I also want the following improvements folded into the same development cycle:

• Mobile-first responsiveness so every layout works smoothly on phones, tablets, and desktops
• Refined product-card styling and behaviour (hover states, spacing, CTA alignment)
• Multilingual i18n integration with an intuitive language switcher
• Ongoing bug hunting and quick fixes whenever issues surface

Clean, well-commented code and polished UI matter a lot to me, as this project could grow into a long-term collaboration. When you respond, please highlight relevant experience tackling similar UI upgrades, responsive work, or i18n roll-outs so I can see how you approach problems like these.

The project is private and not yet hosted, but once the updates are complete I plan to deploy it publicly, so best practices and maintainability are essential.