Improved: Certifications Hub (/certifications/) — easier to move around. It is a long page — 41…

Certifications Hub (/certifications/) — easier to move around. It is a long page — 41 certifications across eight sections — and everything you needed to navigate it sat at the very top, so once you scrolled you lost your place. The section nav now sticks to the top and marks the section you are in; on a phone it stays one swipeable row instead of wrapping to four and eating a sixth of the screen. An active filter now follows you down the page with a one-click Clear, so a filter can no longer be silently in effect while you read the deep dives far below the controls. Plus a back-to-top button, and the sticky table header and deep-dive bar now stack under the nav instead of hiding behind it.