Website fixes, responsiveness and design - wordpress, elementor, html, css

At the moment here is the list of things that I need doing –

Responsive and slick Header/Nav menu that works across all desktop, mobile and tablet. I have an idea in my head of what I need (see ---------- and ---------- ) .

Look at design and make it less clashy

Work through layouts of about 21 pages and ensure the mobile and tablet views are as good as the desktop views.

Tidy up the footer and make it responsive

There seems to be a font fault gremlin on the CSS code for hyperlinks on Post Template - where it doesn't display in the correct type and size is wrong

Tablet view of email field needs fixing on /invest page

Tablet and Mobile Form Formats on 3-4 forms need fixing

On Forms it is displaying a yellow colour and I can’t figure out where to change it.

Line breaks on mobile or tablet view are not showing on all pages

On the page /local the map alignment is all wrong on tablet view.

I will need to have a Google optimisation check on it – but it is considerably smaller than the other site you did.