Bricks Builder Mobile Responsiveness Fixes

My live WordPress site is built with Bricks Builder. Desktop view is OK? It has a clean header with prominent phone number , order/quote buttons, and a clear "Mulch Calculator" navigation link that goes to a dedicated calculator page.
Please note: for those of you who are trying to contact me outside of freelancer, I will report you. I do everything above board and I do not bypass the communication within this site.
The issue is mobile view only (phones/tablets):

Elements scrunch up, overlap, get cramped, and are hard to read/navigate.
Need a full responsive audit/fix: breakpoints, padding/margins, flex/grid layouts, typography scaling, image/button sizing, menu behavior (e.g., hamburger menu), etc.
Ensure key elements stay prominent and functional on mobile: phone number, order/quote buttons, navigation (including Mulch Calculator link), and all sections stacking cleanly without clustering or overlaps.
Also optimize the dedicated Mulch Calculator page for mobile (easy inputs, no issues on small screens).

Work directly in Bricks Builder—no switching builders.
This is urgent—quick completion needed (ideally a few days).
Only bid if you have proven Bricks Builder expertise (share examples of mobile responsiveness fixes, especially headers/CTAs or calculator tools).
Great work will lead to ongoing projects (site upgrades, new features/pages).