WordPress Header/Footer Brand Update

I’m refreshing my site’s look and only need the header and footer updated. You’ll swap in a new logo file I already have and apply my forthcoming brand colours to both the background and text—nothing else on the site should change.

Key points:
• Maintainable implementation only: use the WordPress Customizer, theme variables, or a child-theme CSS file so future edits stay simple and core styles remain untouched.
• Responsiveness and accessibility are non-negotiable—pass WCAG AA contrast and look good on desktop, tablet, and mobile.
• Test the finished work in the latest Chrome, Safari, and Firefox.

I’ll provide the colour palette as soon as we start; you supply updated header/footer styles, concise documentation of where changes live, and screenshots (or a quick screen-grab video) proving cross-browser checks.