The page wrapped its grid in a second maxWidth:1180/margin:auto on top of the shell's already-centered .content (max-width 1480), leaving a ~150px gap between the settings menu and the main navigation. Make the page full-width so the settings sidebar sits flush against the main nav; trim the sidebar column to 248px to match the app nav width. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>