- Replace sidebar #0d0e22 hardcoded hex with .sidebar-panel class backed by
--surface-card CSS variable so all three sidebar elements (desktop, mobile,
mobile header) share the same neutral-dark color as the main content
- Remove purple logo gradient (dark:from-[#0d0e22] dark:to-[#13162a]) — now uses
--surface-elevated for a neutral, unified look
- Add .dark slate-*/gray-900 overrides: bg-slate-700/800/900, border-slate-800,
hover:bg-slate-800 all map to --surface-elevated/--surface-card/--border-subtle
- Remove dead hardcoded rgb(45 51 71) rule for dark bg-gray-100 (was overridden
further down anyway; now consistently uses --surface-elevated)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>