WordPress Navigation Menu Tweaks

My WordPress website navigation menu requires a quick and clean refresh. The scope is limited to the menu items themselves—minor tweaks to pages and a few other elements.

Specific requirements are as follows:
• Rearrange menu items according to the new hierarchical structure I provide
• Add or remove several links based on the provided list
• Update menu text font and color to align with the website's brand color scheme

Minimal CSS modifications or theme-level adjustments are sufficient; no complex plugins or structural changes are required. Please implement the upgrade using the safest approach (choose the most straightforward method) via a child theme, custom panel, or additional CSS panel.

Deliverables must meet the following criteria:
• Accurately display the new order and content on desktop, tablet, and mobile devices
• Display revised fonts and colors without affecting other elements
• Maintain consistent rendering across Chrome, Firefox, Safari, and Edge browsers
• Include brief documentation (README file or comment blocks) marking modification locations for future reference

Please inquire if any questions arise before commencing. I will provide detailed project requirements in PDF format.