Second styling pass over the components and pages: move conditional theme colors into className ternaries (bg-accent / bg-surface-hover etc.), turn reused CSSProperties constants into className constants, and express static hardcoded hex/rgba colors as Tailwind arbitrary values so the exact rendered colour is preserved. Truly dynamic styling (computed geometry, gradients, multi-part shadows, data-driven colours, the undefined --sidebar/--nav layout vars) stays inline as it cannot be expressed as a static class. Updated three component tests that asserted the old inline active-state styles to assert the equivalent utility class instead.
Verified: client typecheck 0, full client suite green, and a live light/dark render check in the dev server confirms the semantic theme tokens resolve correctly (the earlier 'transparent popups' were a stale dev server that pre-dated the tailwind.config token addition, not a code issue).
Replaces the 2-column masonry layout with a horizontal pill tab bar
matching the admin page pattern. Extracts all sections into self-contained
components under components/Settings/ and reduces SettingsPage.tsx from
1554 lines to 93. Adds i18n tab label keys across all 13 language files.
Maurice