---
phase: 11-visual-design-responsive-layout-cleanup
plan: 3
subsystem: frontend/responsive
tags: [responsive, layout, drawer, touch-targets, RESP-01, RESP-02, RESP-03, RESP-05]
dependency_graph:
  requires: [11-02]
  provides: [responsive-user-shell, responsive-admin-shell, responsive-storage-rows, touch-targets]
  affects:
    - frontend/src/App.vue
    - frontend/src/layouts/AdminLayout.vue
    - frontend/src/components/storage/StorageBrowser.vue
tech_stack:
  added: []
  patterns:
    - "Hamburger button + slide-in overlay drawer with Teleport backdrop (translate-x-0/-translate-x-full)"
    - "Drawer state owned by layout root (App.vue / AdminLayout.vue), not sidebar component (D-04/D-05)"
    - "Route-change watcher closes drawer automatically on navigation"
    - "Responsive grid-cols variants: mobile base, sm (+modified), md (all 5 columns)"
    - "Touch target floor: min-w-[36px] min-h-[36px] on action buttons"
key_files:
  created: []
  modified:
    - frontend/src/App.vue
    - frontend/src/layouts/AdminLayout.vue
    - frontend/src/components/storage/StorageBrowser.vue
    - frontend/src/__tests__/keyboard.test.js
    - frontend/src/components/storage/__tests__/StorageBrowser.skeleton.test.js
decisions:
  - "Drawer state in App.vue ref (not Pinia, not AppSidebar) — satisfies D-04/D-05 pitfall constraint"
  - "Backdrop teleported to <body> via <Teleport to='body'> — consistent with Phase 10 modal/toast pattern"
  - "Grid templates use mobile-first responsive variants instead of a fixed 5-column layout — prevents horizontal overflow at 375px"
  - "Touch targets applied via min-w/min-h classes at all breakpoints, removed with md:min-w-0 md:min-h-0 at desktop — desktop appearance unchanged"
metrics:
  duration_minutes: 9
  tasks_completed: 8
  files_created: 0
  files_modified: 5
  completed_date: "2026-06-16"
---

# Phase 11 Plan 3: Responsive Shells & Storage Rows Summary

Implemented mobile-first responsive shells for both user and admin layouts using hamburger-triggered slide-in overlay drawers, and made StorageBrowser rows fit small viewports without horizontal overflow.

## What Was Built

### Tasks 1-3 — App.vue: user layout responsive shell (RESP-01)

`frontend/src/App.vue` updated:

- **Drawer state:** `drawerOpen = ref(false)` owned by `App.vue` — satisfies D-04/D-05 constraint (never put in `AppSidebar`).
- **Route-change close:** `watch(() => route.fullPath, ...)` sets `drawerOpen.value = false` on every navigation so link taps auto-close the drawer.
- **Mobile header:** `<header class="lg:hidden fixed ...">` contains the hamburger button (`data-test="hamburger-btn"`) and the DocuVault wordmark. Only shown below `lg`.
- **Backdrop:** `<Teleport to="body">` wraps a semi-transparent overlay `<div>` that appears when `drawerOpen` is true and calls `drawerOpen = false` on click. Uses `data-test="drawer-backdrop"`.
- **Sidebar wrapper:** `fixed inset-y-0 left-0 z-50` positioning for mobile, `lg:static lg:z-auto lg:translate-x-0` for desktop. Transition: `translate-x-0` (open) / `-translate-x-full` (closed) via `transition-transform duration-200`. Attribute `data-test="app-sidebar-wrapper"`.
- **Main content:** `pt-[53px] lg:pt-0` offset on `<main>` so mobile content doesn't hide under the fixed header.

### Task 4 — AdminLayout.vue: admin layout responsive shell (RESP-05)

`frontend/src/layouts/AdminLayout.vue` mirrors the user layout pattern exactly:

- `drawerOpen = ref(false)` + `watch(() => route.fullPath, ...)` for auto-close on navigation.
- Mobile header shows "DocuVault" + "Admin" label with `data-test="admin-hamburger-btn"`.
- Teleport backdrop with `data-test="admin-drawer-backdrop"`.
- Sidebar wrapper with `data-test="admin-sidebar-wrapper"` and identical transition classes.
- `useRoute` import added; no `useRouter` needed (AdminLayout itself doesn't navigate).

### Tasks 5-6 — StorageBrowser.vue: responsive grid and touch targets (RESP-02, RESP-03)

`frontend/src/components/storage/StorageBrowser.vue` updated:

**Responsive grid templates** (replaces fixed `grid-cols-[2rem_1fr_6rem_8rem_6rem]` everywhere):

| Breakpoint | Grid template | Visible columns |
|---|---|---|
| Default (< sm, 375px) | `grid-cols-[2rem_1fr_6rem]` | icon, name, actions |
| sm (640px+) | `sm:grid-cols-[2rem_1fr_8rem_6rem]` | + modified date |
| md (768px+) | `md:grid-cols-[2rem_1fr_6rem_8rem_6rem]` | + size |

Applied to: list header row, new-folder input row, folder rows, file rows, skeleton rows.

Added `data-test="list-header"` to the column header row for testability.

**Touch targets** (RESP-03, satisfies 36px minimum):

All inline action buttons (Rename, Delete for folders; Share, Move, Delete for files) now have:
- `min-w-[36px] min-h-[36px]` — enforces 36×36px minimum hit area on mobile
- `md:min-w-0 md:min-h-0` — removes the override at desktop so padding-only sizing applies
- `flex items-center justify-center` — keeps icon centered within the larger target

### Task 7 — Tests

**`frontend/src/components/storage/__tests__/StorageBrowser.skeleton.test.js`** updated:

- Replaced old `grid-cols-[2rem_1fr_6rem_8rem_6rem]` assertion (now broken by responsive refactor) with two tests: mobile base class `grid-cols-[2rem_1fr_6rem]` and md breakpoint class `md:grid-cols-[2rem_1fr_6rem_8rem_6rem]`.
- Added new `RESP-02/RESP-03` describe block (8 tests): list header mobile/md classes, folder row, file row, `hidden md:block` size column, `hidden sm:block` modified column, file action button `min-w-[36px]`/`min-h-[36px]`, folder action button touch targets.

**`frontend/src/__tests__/keyboard.test.js`** extended:

- Added `RESP-01: App drawer` describe (2 tests): hamburger open/backdrop-close behavior via stub component; route-change watcher closes drawer.
- Added `RESP-05: AdminLayout drawer` describe (3 tests): admin hamburger renders, admin backdrop-close, admin route-change watcher.
- `afterEach` import added; `nextTick` import added.

## Verification

- `npm test`: 30 test files, 233 tests pass (219 baseline + 14 new from this plan)
- `npm run build`: succeeds — 5 JS chunks + main bundle, no new errors

## Deviations from Plan

None — plan executed exactly as written.

## Known Stubs

None.

## Threat Flags

None — no network endpoints, auth paths, or schema changes in this plan. All changes are frontend layout/presentation only.

## Self-Check: PASSED

- `frontend/src/App.vue`: modified — hamburger header + drawer + Teleport backdrop
- `frontend/src/layouts/AdminLayout.vue`: modified — admin responsive shell
- `frontend/src/components/storage/StorageBrowser.vue`: modified — responsive grid + touch targets
- `frontend/src/__tests__/keyboard.test.js`: modified — drawer tests added
- `frontend/src/components/storage/__tests__/StorageBrowser.skeleton.test.js`: modified — responsive assertions
- Commit `d914761` exists in git log: confirmed
- All 30 test files pass: confirmed
- Build succeeds: confirmed
