Page content scrolls under here — resize below 768px (or shrink this window) to see the hamburger menu take over from the inline links, and "Services" collapse into a labeled group instead of a hover flyout.

Scrolling down confirms the nav stays pinned with a blurred background rather than a hard cut — sticky above 768px, fixed below it (see the comment on .site-nav in the <style> block for why the two need to differ).