Fix Drupal 10 Theme Overflow

I recently finished moving rms-republic.com from a static build → Drupal 7 → Drupal 10 and the custom theme still needs a final polish. Several pages now spill past the viewport, forcing both horizontal and vertical scroll bars. I want every page to sit cleanly within the browser window—exactly as the archived version shows (https://web.archive.org/web/20250000000000*/https://rms-republic.com).

What I’ve noticed so far
• The overflow happens on multiple templates (home, product, blog and a few others).
• Oversized images and some loosely-styled text blocks appear to be the main culprits.
• The intention is fully responsive design, not a fixed or fluid-only layout.

What I need from you
• Audit the current Drupal 10 theme, spot the CSS or template markup that’s stretching beyond the viewport and correct it.
• Tweak or replace any image and text-block rules that break responsiveness.
• Make sure the adjusted theme mirrors the original site’s look and feel across common breakpoints (desktop, tablet, mobile).
• Provide a concise changelog or Git diff so I can merge the fix into the main repo without surprises.

I’m ready to test quickly and sign off once the pages stay contained and responsive on all major browsers.