My Node.js application has just been re-themed and the cascading style sheets no longer line up with the original design intent. The work needed is strictly layout-oriented: margins, grids, alignment and responsive breakpoints across the header, footer, navigation menu and main content area all need to match the new mockups I will provide. You will receive: • Full access to the current CSS/SCSS files. • High-fidelity mockups (desktop and mobile views) that define exact spacing, component positions and stacking order. Deliverables: • Updated CSS/SCSS that brings the header, footer, nav menu and primary content sections into pixel-accurate alignment with the mockups. • Code that remains clean, modular and fully responsive without altering existing Node.js functionality. • A concise change log explaining what was modified and where. Acceptance criteria: 1. Visually identical to the supplied mockups on the latest versions of Chrome, Firefox and Safari. 2. No new console errors or layout regressions on tablet and mobile breakpoints. 3. All edits committed via a pull request for review. The task is focused purely on layout adjustments—no color palette or font work is required. Once the updated styles pass review, the milestone will be marked complete.