# Code Generation Plan — Unit 3: Layout & Navigation

**Status**: 📋 Awaiting answers

## Unit Context

**Unit**: Unit 3 — Layout & Navigation
**Type**: Frontend (React/TypeScript with TanStack Router)
**Depends on**: Unit 2 (AuthContext, useAuth, RoleGuard)
**Stories Covered**: US-08, US-18, US-19

**Key Deliverables**:
- `AppLayout.tsx` — modified: remove Topbar, add MobileBar + SidebarOverlay
- `Sidebar.tsx` — modified: role-filtered nav, sidebar footer with UserMenu + LanguageSwitcher + ThemeToggle
- `MobileBar.tsx` — new: slim mobile bar with hamburger button
- `SidebarOverlay.tsx` — new: slide-over wrapper for Sidebar on mobile
- `ThemeToggle.tsx` — new: dark/light toggle button
- `useTheme.ts` — new: theme state + localStorage sync
- `Topbar.tsx` — deleted
- `index.html` — modified: no-flash inline script
- i18n — additions: `theme.*`, `nav.openMenu`
- Unit tests for all new/modified components

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Please answer the following questions by filling in the letter after each `[Answer]:` tag.

## Question 1: Mobile sidebar animation
When the slide-over sidebar opens on mobile, should it animate?

A) Slide in from the left with a CSS transition (recommended — feels native, Tailwind `transition-transform`)
B) Fade in (opacity transition only)
C) No animation — appear/disappear instantly

[Answer]:

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## Question 2: Sidebar footer layout
The sidebar footer contains UserMenu, LanguageSwitcher and ThemeToggle. How should these be presented?

A) UserMenu shows avatar/name button + dropdown (as it does now in the Topbar) — LanguageSwitcher and ThemeToggle as icon buttons next to it (recommended — compact, consistent with current UserMenu)
B) Flat list: name + email displayed as text, separate logout button, LanguageSwitcher and ThemeToggle as icon buttons below
C) Collapsed by default — only icons visible, expands on click to show labels

[Answer]:

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## Question 3: Unit tests scope
Which components should have unit tests?

A) All new and modified components: AppLayout, Sidebar (role filtering), MobileBar, SidebarOverlay, ThemeToggle, useTheme (recommended)
B) Only the role-filtering logic in Sidebar and the useTheme hook — skip layout wiring tests
C) No new tests for this unit — layout is covered by existing RouteGuard tests

[Answer]: