Refine iOS navigation, media controls, and background sync

.claude/context/architecture.md

@@ -65,7 +65,8 @@ new provider instance):
   without a circular dependency.
 - [`SettingsController`](../../lib/providers/settings_controller.dart) —
   global UI prefs independent of login state: theme mode/seed color/dynamic
-  color, bottom-bar opacity/blur, tap-tab-to-scroll-top, seek bar style, tab
+  color, bottom-bar opacity/blur, avatar and selection action-bar positions,
+  tap-tab-to-scroll-top, seek bar style, tab
   order/visibility/default (`requestedTab`/`requestTab`/
   `consumeRequestedTab`), swipe actions.
 - [`FilesController`](../../lib/providers/files_controller.dart) — the
@@ -282,11 +283,13 @@ the sidebar):
 - **Mobile:** `AppTopBar` (`widgets/app_top_bar.dart`) wraps `NooTopBar`
   for *every* tab (previously only Files had shell-level top chrome, with
   the rest building their own via `SyncedHeaderScaffold`) - iOS gets a
-  large title, an inline search field, a `plus` action on Files only (no
-  other tab has a create/upload flow), and the account avatar; Android
+  large title with Upload and the top account avatar on the same row,
+  and an inline search field below; Android
   gets a compact title row with `search`/avatar actions, relying on an
-  extended `NooFab` ("Upload", Files/Photos only) instead of a top-bar
-  icon for upload. Rather than one shared instance in `Scaffold.appBar`,
+  extended `NooFab` instead of a top-bar upload button. Both use the same
+  size preference: Auto expands on Files/Photos and collapses elsewhere,
+  Mini always collapses, and Expanded always shows Upload. Rather than one
+  shared instance in `Scaffold.appBar`,
   `MainShellView` builds a separate `AppTopBar` per tab (labelled for that
   tab) and each tab plants its own as the first sliver in its own
   `CustomScrollView` (`topBarSliver` in `widgets/tabs/tab_state_slivers.dart`,
@@ -312,8 +315,13 @@ the sidebar):
   section yet). `SettingsController.navMenuStyle` (Settings → Appearance →
   "Navigation menu") offers an alternative to the hamburger/drawer pair:
   the avatar button opens `showAvatarMenu` (`widgets/avatar_menu.dart`)
-  instead, a dropdown holding the same hidden-tabs + Settings content -
-  see `styling.md`'s Gotchas for the wiring.
+  instead. `AvatarNavigationHost` wraps the mobile scaffold to animate a
+  card from the top or bottom avatar; `AvatarNavigationBody` moves only
+  content for the top popup. The bottom popup overlays content. Floating
+  mode moves the avatar into the popup and hands its satellite slot to
+  Search; attached mode keeps the avatar and Search in the full-width bar
+  and expands the popup upward from it. Position is a global setting.
+  See `styling.md` for motion and dismissal behavior.
 - **Desktop:** a `NooSidebar` (account card, pinned tabs, divider,
   remaining tabs, storage meter, Settings) sits beside a `NooToolbar`
   (tab title, search, an "Upload" action on Files/Photos) over the same

.claude/context/server.md

@@ -1021,10 +1021,10 @@ backup) with state in `<...>/sync-state/<accountId>/*.json`.
   pruning uses `rmdir` and only on a successful empty read; a root's etag
   shortcut marker is only written when the path synced cleanly *and* the state
   was saved.
-- **Deliberate differences from Android:** a file deleted on the server but
-  edited here is **kept** (untracked) rather than deleted - the edit is the
-  only copy; after our own upload the file's etag is re-read so it isn't
-  downloaded back; state is flushed every 20 transfers; conflicts are kept
+- **Server deletions:** remove the local copy even if edited locally, matching
+  Android.
+- **Deliberate differences from Android:** after our own upload the file's
+  etag is re-read so it isn't downloaded back; state is flushed every 20 transfers; conflicts are kept
   per account on the status bus; downloads write to a temp file first. No
   ongoing progress notification (a run posts a summary, and conflict
   notifications with Keep local / Use server actions).
@@ -1039,12 +1039,19 @@ backup) with state in `<...>/sync-state/<accountId>/*.json`.
   (`dev.ayushya.noo.sync.refresh`/`.processing`, `UIBackgroundModes` fetch +
   processing, `BGTaskSchedulerPermittedIdentifiers` in Info.plist; handlers
   registered before launch finishes). `intervalMinutes` (floored at 15, like
-  Android) is only the *earliest* start - iOS picks when - and Wi-Fi-only is
+  Android) is only the *earliest* start - iOS picks when. The Files cache
+  settings explain this on iOS; the 15-minute Android warning appears only
+  on Android for intervals below 15 minutes. Wi-Fi-only is
   checked with `NWPathMonitor` (`isExpensive`) since a BGTask can't require
   it. An expiring task cancels its runs (they save state as they go) and is
   completed exactly once (`OnceGate`). **Not testable in the simulator**
   (needs a real device and the Xcode `_simulateLaunchForTaskWithIdentifier`
   debugger command).
+- **Simulator verification:** a temporary debug control ran the native
+  background slot and confirmed files update for a non-active saved account.
+  The control and its channel handler were removed after verification.
+  `startBackgroundSlot` retains a regression test for periodic eligibility.
+  OS wake-up delivery and background execution time limits remain unverified.
 - **Credentials:** `SyncConfigStore` keeps each account's server, auth header,
   paths, interval and notify flag as one Keychain item
   (`AfterFirstUnlock`, so a background run works with the phone locked).

.claude/context/styling.md

@@ -123,7 +123,8 @@ Gotchas:
   toggle, Shares' scope switcher), but pass `onSurface: true` for one
   placed inside a sheet or dialog (already `colors.surface`), or its pill
   track blends invisibly into the sheet instead of reading as a grouped
-  control (Files'/Photos' sort and type-filter sheets do this).
+  control (Files'/Photos' filter sheets and Settings controls on surface
+  rows use the same `surface2` track).
 - Any `RefreshIndicator` needs `physics: const AlwaysScrollableScrollPhysics()`
   on its scrollable child, or pull-to-refresh silently can't be triggered
   once the list is short enough to fit the viewport (empty, or one item) -
@@ -142,6 +143,19 @@ blocks are noted where they matter:
   `NooChip`/`NooSegmentedControl`; still the sort/hidden/scope/type-filter/
   view-mode row shared by Files and Offline (`showStorageScope: false` for
   Offline), and reused as-is by Favorites.
+- Selection action bars in Files, Photos, and Favorites have a global
+  Settings → Action bar → Position choice: Top (default) or Bottom,
+  persisted as `ui_selection_bar_position`. Top stays pinned in the content
+  header; Bottom uses `SelectionBarOverlay` above navigation (or the content
+  pane's bottom on desktop), with extra list clearance. The overlay uses
+  Scaffold's MediaQuery bottom padding so attached/floating/frosted navigation
+  and safe areas are accounted for without counting their height twice.
+  The shell hides Android's Upload FAB during selection via view callbacks.
+  The mobile Action bar settings use one grouped card for Position and
+  the reorder list, with no nested rounded corners or repeated page title.
+  Their header backdrop is transparent, so content scrolls behind the inset
+  `surface` card. A `line` border and `nooDialogShadow` match the floating
+  bottom bar's solid treatment.
 - Hidden files and external storage are each a three-way segmented row
   (`HiddenFilesFilterRow`/`StorageScopeRow`, `lib/widgets/filter_mode_rows.dart`,
   in both the Files and Photos filter sheets), not toggles:
@@ -149,7 +163,8 @@ blocks are noted where they matter:
   cloud (default) / external / all. Files and Photos each persist their own
   hidden filter (`ui_hidden_filter`, `ui_hidden_filter_photos`; the old
   `ui_show_hidden*` bools are still read as a fallback, `true` → include);
-  `StorageScope` stays shared. Leaving `hide` is still behind the
+  `StorageScope` stays shared. Photos uses the same segmented pill for
+  Favorites (All / Favorites only). Leaving `hide` is still behind the
   hidden-files lock gate. With `StorageScope.all`, Files splits the listing:
   regular items first, then a collapsible "External storage" section
   (`_ExternalStorageHeader`, local `_externalExpanded` state, default open)
@@ -248,7 +263,7 @@ blocks are noted where they matter:
   instead of a corner badge. `NooBottomBar` later gained its own, unrelated
   `NooBottomBarStyle.floating` (Settings → Appearance → "Bottom bar") -
   don't confuse the two: this one is still non-blurred, just inset with a
-  `line` border and `nooDialogShadow` (the app's one other shadow user - see
+  `line` border and `nooDialogShadow` (also used by floating selection bars - see
   that constant's doc comment) instead of edge to edge (no opacity/blur knob
   either). `floating` ignores `NooNavStyle` and always uses the Android row
   (icon-only idle tabs, sliding pill, 64px), so iOS matches Android there;
@@ -281,44 +296,50 @@ blocks are noted where they matter:
   `onSearchTap`) and lowers `SettingsController.maxVisibleTabs` by one -
   use that getter, not `defaultMaxVisibleTabs` from `models/app_tab.dart`,
   anywhere that needs the *current* cap on regular tabs.
-- `SettingsController.navMenuStyle` (`NooNavMenuStyle.drawer`/`avatarMenu`,
-  Settings → Appearance → "Navigation menu") picks what opens hidden tabs +
-  Settings on mobile: the original hamburger-opens-`AppDrawer` pattern, or
-  the avatar button opens [`showAvatarMenu`](../../lib/widgets/avatar_menu.dart)
-  instead. Wired through `AppTopBar`→`NooTopBar.onMenu` (null in `avatarMenu`
-  mode - no menu icon renders at all, see `NooTopBar`'s `lead` logic) and
-  `ShellAvatarButton`'s new `onTap`/`label` overrides (`shell_common.dart`) -
-  a caller passing a custom `onTap` *must* also pass a matching `label`, or
-  the tooltip/semantics still say "Accounts" for a button that no longer
-  opens the account switcher. In `avatarMenu` mode `main.dart` also sets
-  `Scaffold.drawerEnableOpenDragGesture: false` so the edge swipe can't open
-  the drawer. The menu header has a chevron that expands an account section
-  (other saved accounts to switch to, "Add Account", "Manage Accounts")
-  above the hidden tabs/Settings. `showAvatarMenu` is this app's first use of
-  `showGeneralDialog` directly (`barrierColor: Colors.transparent` +
-  `barrierDismissible: true` for a non-dimming click-outside-to-close menu,
-  not a modal flow) - there's no existing anchored-popup primitive here
-  (`PopupMenuButton`'s own width doesn't stretch to a full content column),
-  so don't reach for `showNooSheet`/`showNooDialog` for something shaped
-  like this. It's positioned just past the status bar (`SafeArea`'s own
-  inset, not the top bar's full height on top of that) so it covers the
-  top bar - including the tab title - rather than sitting below it, and
-  its card carries two stacked `boxShadow`s rather than just
-  `nooDialogShadow` alone: that one shadow's blur is wide and soft enough
-  to read as basically invisible on a small card over a dark theme's
-  near-black `bg` (a dark, diffuse shadow needs real density close to the
-  edge to be visible against an already-dark backdrop), so a second,
-  tighter, more opaque contact shadow underneath it gives real elevation
-  in both themes. The card's border can go missing wherever an opaque row
-  sits against it too (every corner but the header's, which has no
-  full-bleed fill of its own) if a `Container` combines `border` with its
-  own `clipBehavior` - that paints the border as part of the *outer*
-  decoration, then the clipped child on top right up to the same boundary,
-  with no gap for the border's own stroke to show through. Fixed the same
-  way any bordered-and-clipped `Container` should be: no `clipBehavior` on
-  the bordered `Container` itself, and a 1px-inset `ClipRRect` (radius
-  reduced by that same 1px) around the filled, clipped content instead, so
-  it never paints over the border. Also added
+- `SettingsController.navMenuStyle` chooses hamburger/drawer or avatar popup
+  navigation (Settings → Appearance → Navigation menu). Avatar mode exposes
+  a persisted Avatar position choice (`ui_avatar_position`, Top by default).
+  `AvatarNavigationHost` owns one 420ms open / 320ms close animation using
+  `easeInOutCubicEmphasized`. The card expands from the real avatar anchor;
+  its controls fade in after the expansion starts. Top moves the content pane
+  down through `AvatarNavigationBody`, keeping bottom navigation stationary.
+  Bottom moves the avatar upward into the card's bottom-right corner and
+  overlays the list immediately above navigation. Both use the Files gutter.
+  The floating rail beside a bottom avatar shows text only on the selected
+  tab. Attached iOS also shows text only for the selected tab and keeps the full-width bar,
+  with the avatar inside the trailing end. Its popup expands upward with
+  full screen width, rounded top corners and no gap above the bar; the
+  avatar stays in the bar, and Search keeps its inline position.
+  The attached popup has no outer border or shadow, blending into the bar.
+  Attached popup order is navigation (including Settings), current account,
+  then expanded secondary accounts and Add/Manage Account controls.
+  The iOS shell places Upload and the top avatar on the large-title row.
+  Upload uses the shared `ui_fab_style` preference: Auto expands on Files
+  and Photos and collapses elsewhere; Mini is icon-only; Expanded always
+  shows the plus-and-Upload button. Upload uses the folder icon's tonal
+  `accentSoft` background and `accentText` foreground. Search stays below.
+  Upload uses the compact 32px size to match the visible top avatar.
+  On iOS the accent picker hides the unsupported wallpaper color option;
+  the accent subtitle, swatch and selection always reflect the seed color.
+  Upload's width, padding and label opacity interpolate over `NooMotion.base`.
+  A shared shell animation keeps separately mounted tab headers in sync
+  during Auto tab changes; reduced motion skips the transition.
+  Avatar navigation and its bottom satellite share the bottom bar's frost
+  toggle, blur and opacity, including throughout the popup animation.
+  The setting is labelled "Frosted glass" and also controls both media
+  viewer panels through `FrostedGlassContainer`. Off uses an opaque surface
+  without a backdrop filter; On uses the shared blur and tint opacity.
+  Search starts inside the rail when a bottom avatar occupies the satellite;
+  its row slot smoothly collapses as Search fades into that satellite while
+  the avatar moves into the popup. Closing reverses the same path. The card
+  retains hidden tabs, Settings, account switching, Add Account, and Manage
+  Accounts. Account controls scroll on short screens. Tap outside, tap the
+  popup avatar, or system Back to close. Reduced motion opens/closes without
+  the transition. Drawer gestures are disabled in avatar mode. Standalone
+  top bars outside the shell retain `showGeneralDialog` as a fallback.
+  `ShellAvatarButton` keeps its vertical-swipe account shortcuts in either
+  position. Its onTap override must have a matching tooltip/semantics label.
+  Also added
   `NooTopBar.androidTitleTrailing`: Android has no large title to put a
   second search row under the way iOS's `search:` slot does, so an inline
   search bar (`AppTopBar` passes a plain `ShellSearchLauncher()` when
@@ -348,11 +369,13 @@ blocks are noted where they matter:
   `FileBreadcrumbRow` proved the same trail is still wanted elsewhere.
 - [`SeekBarPainter`/`SeekBarPreview`](../../lib/widgets/seek_bar_painter.dart)
   — the four `MediaProgressBarStyle` presets (Default/Wavy/Slim/Squiggly)
-  for the video player's seek bar, plus a perpetually-animated
+  for the non-iOS video player's seek bar, plus a perpetually-animated
   `SeekBarPreview` wrapper used by the Settings style picker so every
   preview always matches the real widget exactly (same painter, just fed
   demo `progress`/`phase` values). Add new seek-bar presets here, not by
   forking the painter.
+  iOS uses `IosSeekBar` with `CupertinoSlider` instead and hides the style
+  picker. Scrubbing pauses playback temporarily and restores its prior state.
 - Chrome inside the media viewer (`file_viewer_screen.dart` — the top bar's
   back button + filename, the bottom action bar, the video transport
   controls) all share one small hand-rolled icon-button pattern

ios/Runner/Native/SyncEngine/SyncCoordinator.swift

@@ -320,7 +320,13 @@ final class SyncCoordinator {
   /// exactly once - when the work ends or when the system's time does.
   private func handleBackground(_ task: BGTask) {
     scheduleBackgroundWork()  // line up the next one before this one runs
-    let gate = OnceGate { task.setTaskCompleted(success: $0) }
+    task.expirationHandler = startBackgroundSlot { task.setTaskCompleted(success: $0) }
+  }
+
+  /// Runs a background slot and returns its expiration handler.
+  @discardableResult
+  func startBackgroundSlot(completion: @escaping (Bool) -> Void) -> () -> Void {
+    let gate = OnceGate(completion)
     let accountIds = backgroundConfigs().map(\.accountId)
     let work = Task { [weak self] in
       guard let self else { return gate.finish(false) }
@@ -332,7 +338,7 @@ final class SyncCoordinator {
     }
     // The system's time is up: stop the work and the runs it started (each
     // saves what it has) and report.
-    task.expirationHandler = { [weak self] in
+    return { [weak self] in
       work.cancel()
       for id in accountIds { self?.cancelRun(accountId: id, invalidateQueued: false) }
       gate.finish(false)

ios/Runner/Native/SyncEngine/SyncDiff.swift

@@ -89,16 +89,7 @@ enum SyncDiff {
 
     for fileId in priorFolderFileIds where !seen.contains(fileId) {
       guard let prior = state[fileId] else { continue }
-      // Deleted on the server. If it was also edited here since the last sync
-      // that edit is the only copy left - keep it (untracked) instead of
-      // deleting it along with the rest.
-      if let local = LocalFS.stat(syncRoot.appendingPathComponent(prior.relPath)),
-        local.mtimeMs != prior.localMTime || local.size != prior.size
-      {
-        actions.append(.orphan(relPath: prior.relPath, fileId: fileId))
-      } else {
-        actions.append(.delete(relPath: prior.relPath, fileId: fileId))
-      }
+      actions.append(.delete(relPath: prior.relPath, fileId: fileId))
     }
     return actions
   }

ios/Runner/Native/SyncEngine/SyncModels.swift

@@ -38,10 +38,6 @@ enum SyncAction: Equatable {
   case upload(relPath: String, fileId: String)
   case delete(relPath: String, fileId: String)
   case conflict(SyncRemoteEntry, relPath: String)
-  /// Deleted on the server, but edited on this device since the last sync:
-  /// the edited copy is the only one left, so it's kept (and simply no longer
-  /// tracked) instead of being deleted with the rest. Android deletes it.
-  case orphan(relPath: String, fileId: String)
 }
 
 /// A file changed both on the device and on the server since the last sync.

ios/Runner/Native/SyncEngine/SyncRunner.swift

@@ -144,7 +144,7 @@ final class SyncStatusBus {
 ///   edits with the server's copies).
 /// - Paths the server sends are checked to stay inside the mirror, and two
 ///   remote files that would land on the same local file are both skipped.
-/// - A file deleted on the server but edited here is kept, not deleted.
+/// - Server deletions remove the local copy, including local edits, like Android.
 /// - A root's etag is only remembered once its whole path synced cleanly, and
 ///   only if the state it relies on was actually saved.
 struct SyncRunner {
@@ -301,11 +301,6 @@ struct SyncRunner {
             }
             state[fileId] = nil
 
-          case .orphan(_, let fileId):
-            // Deleted on the server but edited here: the edit stays on the
-            // device, no longer tracked.
-            state[fileId] = nil
-
           case .conflict(let entry, let rel):
             summary.conflicts.append(
               SyncConflict(

ios/RunnerTests/SyncEngineTests.swift

@@ -583,19 +583,19 @@ final class SyncEngineTests: XCTestCase {
     XCTAssertTrue(store.loadMissingRoots(accountId: "acct").isEmpty, "nor like the folder being gone")
   }
 
-  func testDeletedOnTheServerButEditedHereIsKept() async throws {
+  func testDeletedOnTheServerButEditedHereIsDeletedLikeAndroid() async throws {
     seedServer()
     _ = await runner.run(config, force: false)
     try editLocally("Docs/a.txt", "my only copy of this edit")
     FakeDav.remove("/Docs/a.txt")
 
     let summary = await runner.run(config, force: false)
-    XCTAssertEqual(summary.deleted, 0)
-    XCTAssertEqual(local("Docs/a.txt"), "my only copy of this edit")
+    XCTAssertEqual(summary.deleted, 1)
+    XCTAssertFalse(exists("Docs/a.txt"))
     XCTAssertNil(state().first { $0.value.relPath == "Docs/a.txt" }, "no longer tracked")
 
     let again = await runner.run(config, force: false)
-    XCTAssertEqual(local("Docs/a.txt"), "my only copy of this edit", "and not touched later either")
+    XCTAssertFalse(exists("Docs/a.txt"), "not restored on a later sync")
     XCTAssertFalse(again.changedAnything)
   }
 
@@ -740,6 +740,36 @@ final class SyncEngineTests: XCTestCase {
     XCTAssertEqual(bus.snapshot().conflicts, [b], "removing A's leaves B's")
   }
 
+  func testBackgroundSlotOnlyRunsAccountsWithPeriodicSyncEnabled() async {
+    seedServer()
+    let configs = SyncConfigStore(service: "test-\(UUID().uuidString)")
+    addTeardownBlock { configs.removeAll() }
+    let coordinator = SyncCoordinator(store: store, bus: bus, configs: configs, client: DavSyncClient(session: fakeSession))
+    var scheduled = config
+    scheduled.intervalMinutes = nil
+    scheduled.wifiOnly = false
+    configs.upsert(scheduled)
+
+    let skipped = expectation(description: "manual-only account skipped")
+    coordinator.startBackgroundSlot { success in
+      XCTAssertTrue(success)
+      skipped.fulfill()
+    }
+    await fulfillment(of: [skipped], timeout: 10)
+    XCTAssertFalse(exists("Docs/a.txt"))
+
+    scheduled.intervalMinutes = 30
+    configs.upsert(scheduled)
+    let completed = expectation(description: "periodic account synced")
+    coordinator.startBackgroundSlot { success in
+      XCTAssertTrue(success)
+      completed.fulfill()
+    }
+    await fulfillment(of: [completed], timeout: 15)
+    XCTAssertEqual(local("Docs/a.txt"), "alpha")
+    XCTAssertEqual(local("Docs/sub/b.txt"), "bravo")
+  }
+
   func testSignOutForgetsCredentialsButTurningBackgroundOffKeepsThem() {
     let service = "test-\(UUID().uuidString)"
     let configs = SyncConfigStore(service: service)

lib/main.dart

@@ -32,6 +32,7 @@ import 'views/share_upload_view.dart';
 import 'widgets/app_drawer.dart';
 import 'widgets/app_tab_view_builder.dart';
 import 'widgets/app_top_bar.dart';
+import 'widgets/avatar_menu.dart';
 import 'widgets/bottom_nav_bar.dart';
 import 'widgets/create_menu.dart';
 import 'widgets/noo/core/noo_avatar.dart';
@@ -210,6 +211,7 @@ class MainShellView extends StatefulWidget {
 
 class _MainShellViewState extends State<MainShellView> {
   late AppTab _currentTab;
+  final Set<AppTab> _selectionActiveTabs = {};
   late final Map<AppTab, ScrollController> _scrollControllers;
   StreamSubscription<List<SharedFileRef>>? _shareSub;
   StreamSubscription<PickRequest>? _pickSub;
@@ -430,24 +432,41 @@ class _MainShellViewState extends State<MainShellView> {
     // null`).
     final tabStack = Stack(
       children: [
-        IndexedStack(
-          index: selectedIndex,
-          children: displayTabs
-              .map(
-                (tab) => buildAppTabView(
-                  tab,
-                  _scrollControllers[tab]!,
-                  topBar: isDesktop || pickRequest != null
-                      ? null
-                      : AppTopBar(
-                          style: navStyle,
-                          tab: tab,
-                          searchInBottomBar: showBottomBarSearch,
-                          navMenuStyle: settings.navMenuStyle,
-                        ),
-                ),
-              )
-              .toList(),
+        AvatarNavigationBody(
+          child: IndexedStack(
+            index: selectedIndex,
+            children: displayTabs
+                .map(
+                  (tab) => buildAppTabView(
+                    tab,
+                    _scrollControllers[tab]!,
+                    onSelectionChanged: (selecting) {
+                      if (!mounted ||
+                          selecting == _selectionActiveTabs.contains(tab)) {
+                        return;
+                      }
+                      setState(() {
+                        if (selecting) {
+                          _selectionActiveTabs.add(tab);
+                        } else {
+                          _selectionActiveTabs.remove(tab);
+                        }
+                      });
+                    },
+                    topBar: isDesktop || pickRequest != null
+                        ? null
+                        : AppTopBar(
+                            style: navStyle,
+                            tab: tab,
+                            searchInBottomBar: showBottomBarSearch,
+                            navMenuStyle: settings.navMenuStyle,
+                            avatarPosition: settings.avatarPosition,
+                            uploadButtonStyle: settings.fabStyle,
+                          ),
+                  ),
+                )
+                .toList(),
+          ),
         ),
         if (pick.isDownloadingForPick) const _PickingProgressOverlay(),
       ],
@@ -549,13 +568,15 @@ class _MainShellViewState extends State<MainShellView> {
           bottomBarStyle,
           settings.bottomBarFrosted,
         ),
-        // Android-only extended Upload FAB - iOS uses the top bar's `plus`
+        // Android-only extended Upload FAB - iOS uses the top bar's Upload
         // instead (see AppTopBar). Stays mounted across every tab (picking
         // aside) and collapses to an icon-only circle off Files/Photos,
         // rather than the Scaffold popping it fully in/out on every tab
         // switch - see NooFab's [collapsed].
         floatingActionButton:
-            pickRequest == null && navStyle == NooNavStyle.android
+            pickRequest == null &&
+                navStyle == NooNavStyle.android &&
+                !_selectionActiveTabs.contains(selectedTab)
             ? NooFab(
                 collapsed: switch (settings.fabStyle) {
                   FabStyle.auto => !canUpload,
@@ -566,7 +587,22 @@ class _MainShellViewState extends State<MainShellView> {
                 onTap: () => showCreateMenu(context),
               )
             : null,
-        body: tabStack,
+        body: TweenAnimationBuilder<double>(
+          tween: Tween(
+            end: switch (settings.fabStyle) {
+              FabStyle.auto => canUpload ? 1.0 : 0.0,
+              FabStyle.mini => 0.0,
+              FabStyle.expanded => 1.0,
+            },
+          ),
+          duration: MediaQuery.disableAnimationsOf(context)
+              ? Duration.zero
+              : NooMotion.base,
+          curve: NooMotion.ease,
+          child: tabStack,
+          builder: (context, progress, child) =>
+              UploadButtonAnimation(progress: progress, child: child!),
+        ),
         bottomNavigationBar: BottomNavBar(
           style: navStyle,
           barStyle: bottomBarStyle,
@@ -576,6 +612,10 @@ class _MainShellViewState extends State<MainShellView> {
           tabs: pinnedTabs,
           selectedIndex: pinnedIndex,
           onSearchTap: showBottomBarSearch ? () => openSearch(context) : null,
+          avatarInBottomBar:
+              pickRequest == null &&
+              settings.navMenuStyle == NooNavMenuStyle.avatarMenu &&
+              settings.avatarPosition == AvatarPosition.bottom,
           onDestinationSelected: (index) {
             final tappedTab = pinnedTabs[index];
             if (tappedTab == _currentTab) {
@@ -615,7 +655,7 @@ class _MainShellViewState extends State<MainShellView> {
       onPopInvokedWithResult: (didPop, result) {
         if (!didPop && pickRequest != null) pick.cancelPick();
       },
-      child: scaffold,
+      child: isDesktop ? scaffold : AvatarNavigationHost(child: scaffold),
     );
   }
 }

lib/providers/settings_controller.dart

@@ -9,11 +9,16 @@ import '../widgets/noo/nav/noo_nav_style.dart';
 /// in Settings.
 enum SwipeAction { none, favorite, delete, share }
 
-/// How the Android Upload FAB is sized: [auto] expands on Files/Photos and
+/// How the mobile Upload button is sized: [auto] expands on Files/Photos and
 /// shrinks to an icon elsewhere, [mini] is always icon-only, [expanded]
 /// always shows the label.
 enum FabStyle { auto, mini, expanded }
 
+/// Where bulk selection actions float within the content pane.
+enum SelectionBarPosition { top, bottom }
+
+enum AvatarPosition { top, bottom }
+
 /// Thumb/track presets for the video player's seek bar, matching the four
 /// combinations offered by other Material You media players: a Material 3
 /// slider-style thumb ([classic]), an animated travelling wave with a round
@@ -55,6 +60,7 @@ class SettingsController extends ChangeNotifier {
   static const _prefUseDynamicColor = 'ui_use_dynamic_color';
   static const _prefSeedColor = 'ui_seed_color';
   static const _prefTabOrder = 'ui_tab_order';
+  static const _prefSelectionBarPosition = 'ui_selection_bar_position';
   static const _prefSelectionActionOrder = 'ui_selection_action_order';
   static const _prefHiddenTabs = 'ui_hidden_tabs';
   static const _prefDefaultTab = 'ui_default_tab';
@@ -65,6 +71,7 @@ class SettingsController extends ChangeNotifier {
   static const _prefBottomBarFrosted = 'ui_bottom_bar_frosted';
   static const _prefFrostedBlur = 'ui_bottom_bar_frosted_blur';
   static const _prefFrostedOpacity = 'ui_bottom_bar_frosted_opacity';
+  static const _prefAvatarPosition = 'ui_avatar_position';
   static const _prefNavMenuStyle = 'ui_nav_menu_style';
   static const _prefSearchInBottomBar = 'ui_search_in_bottom_bar';
   static const _prefAmoledDark = 'ui_amoled_dark';
@@ -78,6 +85,7 @@ class SettingsController extends ChangeNotifier {
   ThemeMode _themeMode = ThemeMode.system;
   NooBottomBarStyle _bottomBarStyle = NooBottomBarStyle.attached;
   NooNavMenuStyle _navMenuStyle = NooNavMenuStyle.drawer;
+  AvatarPosition _avatarPosition = AvatarPosition.top;
   bool _bottomBarFrosted = false;
   double _frostedBlur = FrostedGlassPreset.standard.blur;
   double _frostedOpacity = FrostedGlassPreset.standard.opacity;
@@ -87,6 +95,7 @@ class SettingsController extends ChangeNotifier {
   MediaProgressBarStyle _mediaProgressBarStyle = MediaProgressBarStyle.wavy;
 
   bool _tapTabToScrollTop = true;
+  SelectionBarPosition _selectionBarPosition = SelectionBarPosition.top;
 
   List<AppTab> _tabOrder = AppTab.values.toList();
   Set<AppTab> _hiddenTabs = {};
@@ -134,12 +143,14 @@ class SettingsController extends ChangeNotifier {
   FrostedGlassPreset? get frostedPreset => FrostedGlassPreset.values
       .where((p) => p.blur == _frostedBlur && p.opacity == _frostedOpacity)
       .firstOrNull;
+  AvatarPosition get avatarPosition => _avatarPosition;
   NooNavMenuStyle get navMenuStyle => _navMenuStyle;
   bool get searchInBottomBar => _searchInBottomBar;
   bool get useDynamicColor => _useDynamicColor;
   bool get amoledDark => _amoledDark;
   MediaProgressBarStyle get mediaProgressBarStyle => _mediaProgressBarStyle;
   bool get tapTabToScrollTop => _tapTabToScrollTop;
+  SelectionBarPosition get selectionBarPosition => _selectionBarPosition;
 
   /// The cap a screen should actually enforce for the *regular*, user-
   /// reorderable tabs - one below [defaultMaxVisibleTabs] while
@@ -180,6 +191,11 @@ class SettingsController extends ChangeNotifier {
           orElse: () => ThemeMode.system,
         );
       }
+      _selectionBarPosition = SelectionBarPosition.values.firstWhere(
+        (position) =>
+            position.name == prefs.getString(_prefSelectionBarPosition),
+        orElse: () => SelectionBarPosition.top,
+      );
       final bottomBarStyleName = prefs.getString(_prefBottomBarStyle);
       if (bottomBarStyleName != null) {
         _bottomBarStyle = NooBottomBarStyle.values.firstWhere(
@@ -187,6 +203,10 @@ class SettingsController extends ChangeNotifier {
           orElse: () => _bottomBarStyle,
         );
       }
+      _avatarPosition = AvatarPosition.values.firstWhere(
+        (position) => position.name == prefs.getString(_prefAvatarPosition),
+        orElse: () => AvatarPosition.top,
+      );
       final navMenuStyleName = prefs.getString(_prefNavMenuStyle);
       if (navMenuStyleName != null) {
         _navMenuStyle = NooNavMenuStyle.values.firstWhere(
@@ -356,6 +376,22 @@ class SettingsController extends ChangeNotifier {
     _prefsFuture.then((p) => p.setString(_prefThemeMode, mode.name));
   }
 
+  void setAvatarPosition(AvatarPosition position) {
+    if (_avatarPosition == position) return;
+    _avatarPosition = position;
+    notifyListeners();
+    _prefsFuture.then((p) => p.setString(_prefAvatarPosition, position.name));
+  }
+
+  void setSelectionBarPosition(SelectionBarPosition position) {
+    if (_selectionBarPosition == position) return;
+    _selectionBarPosition = position;
+    notifyListeners();
+    _prefsFuture.then(
+      (p) => p.setString(_prefSelectionBarPosition, position.name),
+    );
+  }
+
   void setBottomBarStyle(NooBottomBarStyle style) {
     if (_bottomBarStyle == style) return;
     _bottomBarStyle = style;

lib/theme/design_tokens.dart

@@ -366,8 +366,8 @@ class NooMotion {
 
 /// The one shadow the design system allows, from `tokens/spacing.css`'s
 /// `--shadow-dialog` - desktop dialogs, and [NooBottomBarStyle.floating]'s
-/// bar/search satellite (the only other thing in the app that's genuinely
-/// floating above other content). Nothing else should use a `BoxShadow`.
+/// bar/search satellite, and the floating selection action bar.
+/// Nothing else should use a `BoxShadow`.
 const nooDialogShadow = BoxShadow(
   color: Color(0x241E002F), // rgba(30,0,47,.14)
   blurRadius: 48,

lib/views/favorites_view.dart

@@ -29,6 +29,7 @@ import '../widgets/noo/overlays/noo_sheet.dart';
 import '../widgets/noo/core/noo_button.dart';
 import '../widgets/share_sheet.dart';
 import '../widgets/sticky_header_delegate.dart';
+import '../widgets/selection_bar_overlay.dart';
 import '../widgets/tabs/tab_state_slivers.dart';
 import '../widgets/synced_header_scaffold.dart' show formatBytes;
 import 'file_viewer_screen.dart';
@@ -54,8 +55,14 @@ class FavoritesView extends StatefulWidget {
   /// This tab's own shell top bar, planted as its first sliver - see
   /// `buildAppTabView`'s doc comment. Null on desktop and while picking.
   final PreferredSizeWidget? topBar;
+  final ValueChanged<bool>? onSelectionChanged;
 
-  const FavoritesView({super.key, required this.scrollController, this.topBar});
+  const FavoritesView({
+    super.key,
+    required this.scrollController,
+    this.topBar,
+    this.onSelectionChanged,
+  });
 
   @override
   State<FavoritesView> createState() => _FavoritesViewState();
@@ -72,10 +79,12 @@ class _FavoritesViewState extends State<FavoritesView> {
     setState(() {
       if (!_selectedIds.remove(item.id)) _selectedIds.add(item.id);
     });
+    widget.onSelectionChanged?.call(_isSelecting);
   }
 
   void _clearSelection() {
     setState(_selectedIds.clear);
+    widget.onSelectionChanged?.call(false);
   }
 
   /// A favorited folder switches to the Files tab, navigated there; a
@@ -483,6 +492,10 @@ class _FavoritesViewState extends State<FavoritesView> {
 
   @override
   Widget build(BuildContext context) {
+    final selectionAtBottom =
+        _isSelecting &&
+        context.watch<SettingsController>().selectionBarPosition ==
+            SelectionBarPosition.bottom;
     final colors = context.nooColors;
     final isDesktop = NooLayout.isDesktop(context);
     final favoritesController = context.watch<FavoritesController>();
@@ -513,15 +526,17 @@ class _FavoritesViewState extends State<FavoritesView> {
 
     final contentSlivers = <Widget>[
       if (widget.topBar != null) topBarSliver(widget.topBar!),
-      SliverPersistentHeader(
-        pinned: !_isSelecting,
-        delegate: StickyHeaderDelegate(
-          height: _isSelecting ? 56 : 64,
-          child: _isSelecting
-              ? _buildSelectionBar(context, selectedItems)
-              : controlsRow,
+      if (!selectionAtBottom)
+        SliverPersistentHeader(
+          pinned: true,
+          delegate: StickyHeaderDelegate(
+            floating: _isSelecting,
+            height: _isSelecting ? 56 : 64,
+            child: _isSelecting
+                ? _buildSelectionBar(context, selectedItems)
+                : controlsRow,
+          ),
         ),
-      ),
       if (favoritesController.isLoading && favorites.isEmpty)
         const SliverFillRemaining(
           hasScrollBody: false,
@@ -646,7 +661,13 @@ class _FavoritesViewState extends State<FavoritesView> {
             }, childCount: favorites.length),
           ),
         ),
-      SliverToBoxAdapter(child: SizedBox(height: bottomBarClearance(context))),
+      SliverToBoxAdapter(
+        child: SizedBox(
+          height:
+              bottomBarClearance(context) +
+              (selectionAtBottom ? SelectionBarOverlay.clearance : 0),
+        ),
+      ),
     ];
 
     return PopScope(
@@ -654,24 +675,29 @@ class _FavoritesViewState extends State<FavoritesView> {
       onPopInvokedWithResult: (didPop, result) {
         if (!didPop && _isSelecting) _clearSelection();
       },
-      child: ColoredBox(
-        color: colors.bg,
-        child: RefreshIndicator(
-          color: colors.accent,
-          backgroundColor: colors.surface,
-          onRefresh: favoritesController.fetchAll,
-          // See files_view.dart's identical fix - without this, the sticky
-          // controls row rides up under the status bar once the floating
-          // top bar above it fully collapses.
-          child: SafeArea(
-            top: true,
-            bottom: false,
-            child: CustomScrollView(
-              controller: widget.scrollController,
-              // See files_view.dart's identical fix - without this, pull-to-
-              // refresh can't be triggered on an empty or single-item list.
-              physics: const AlwaysScrollableScrollPhysics(),
-              slivers: contentSlivers,
+      child: SelectionBarOverlay(
+        bar: selectionAtBottom
+            ? _buildSelectionBar(context, selectedItems)
+            : null,
+        child: ColoredBox(
+          color: colors.bg,
+          child: RefreshIndicator(
+            color: colors.accent,
+            backgroundColor: colors.surface,
+            onRefresh: favoritesController.fetchAll,
+            // See files_view.dart's identical fix - without this, the sticky
+            // controls row rides up under the status bar once the floating
+            // top bar above it fully collapses.
+            child: SafeArea(
+              top: true,
+              bottom: false,
+              child: CustomScrollView(
+                controller: widget.scrollController,
+                // See files_view.dart's identical fix - without this, pull-to-
+                // refresh can't be triggered on an empty or single-item list.
+                physics: const AlwaysScrollableScrollPhysics(),
+                slivers: contentSlivers,
+              ),
             ),
           ),
         ),

lib/views/file_viewer_screen.dart

@@ -428,9 +428,7 @@ class _FileViewerScreenState extends State<FileViewerScreen> {
     // The stage follows the app's own theme (`bg`) rather than being pinned
     // to black - a black stage in light mode read as jarringly out of place
     // next to the rest of the light-themed app. The floating top/action
-    // bars now follow the theme too (FrostedGlassContainer's own `surface`
-    // default), at a higher blur opacity to stay legible over arbitrary
-    // photo/video brightness underneath.
+    // bars follow the theme and share the navigation frost preference.
     final stageColor = colors.bg;
 
     return Scaffold(

lib/views/files_view.dart

@@ -44,6 +44,7 @@ import '../widgets/noo/noo_layout.dart';
 import '../widgets/noo/overlays/noo_sheet.dart';
 import '../widgets/share_sheet.dart';
 import '../widgets/sticky_header_delegate.dart';
+import '../widgets/selection_bar_overlay.dart';
 import '../widgets/tabs/tab_state_slivers.dart';
 import '../widgets/synced_header_scaffold.dart' show formatBytes;
 import 'file_viewer_screen.dart';
@@ -64,12 +65,14 @@ class FilesView extends StatefulWidget {
   /// This tab's own shell top bar, planted as its first sliver - see
   /// `buildAppTabView`'s doc comment. Null on desktop and while picking.
   final PreferredSizeWidget? topBar;
+  final ValueChanged<bool>? onSelectionChanged;
 
   const FilesView({
     super.key,
     required this.scrollController,
     this.offline = false,
     this.topBar,
+    this.onSelectionChanged,
   });
 
   @override
@@ -337,10 +340,12 @@ class _FilesViewState extends State<FilesView> {
     setState(() {
       if (!_selectedIds.remove(item.id)) _selectedIds.add(item.id);
     });
+    widget.onSelectionChanged?.call(_isSelecting);
   }
 
   void _clearSelection() {
     setState(_selectedIds.clear);
+    widget.onSelectionChanged?.call(false);
   }
 
   /// Routes a tap on an item, in picking, selecting or plain-browsing mode
@@ -652,6 +657,10 @@ class _FilesViewState extends State<FilesView> {
 
   @override
   Widget build(BuildContext context) {
+    final selectionAtBottom =
+        _isSelecting &&
+        context.watch<SettingsController>().selectionBarPosition ==
+            SelectionBarPosition.bottom;
     final colors = context.nooColors;
     // Display prefs (grid/list, filters, sort) live on FilesController for
     // both tabs; `browser` is the tab's own folder listing.
@@ -835,8 +844,7 @@ class _FilesViewState extends State<FilesView> {
           child: _ExternalStorageHeader(
             count: externalItems.length,
             expanded: _externalExpanded,
-            onTap: () =>
-                setState(() => _externalExpanded = !_externalExpanded),
+            onTap: () => setState(() => _externalExpanded = !_externalExpanded),
           ),
         ),
         if (_externalExpanded)
@@ -854,17 +862,19 @@ class _FilesViewState extends State<FilesView> {
       // (+ breadcrumbs), while selecting it's the selection bar (see
       // `topRow` above): either way it's the one thing that always stays
       // at the very top of the scroll view.
-      SliverPersistentHeader(
-        pinned: true,
-        delegate: StickyHeaderDelegate(
-          // 20 (topRow's own top+bottom padding) + 44 (FilesControlsRow's
-          // fixed height) [+ 10 gap + 32 breadcrumbs height, if present].
-          // Getting this wrong overflows the sliver header by exactly the
-          // shortfall - a real bug this shipped with once already.
-          height: _isSelecting ? 56 : (hasBreadcrumbs ? 106 : 64),
-          child: topRow,
+      if (!selectionAtBottom)
+        SliverPersistentHeader(
+          pinned: true,
+          delegate: StickyHeaderDelegate(
+            floating: _isSelecting,
+            // 20 (topRow's own top+bottom padding) + 44 (FilesControlsRow's
+            // fixed height) [+ 10 gap + 32 breadcrumbs height, if present].
+            // Getting this wrong overflows the sliver header by exactly the
+            // shortfall - a real bug this shipped with once already.
+            height: _isSelecting ? 56 : (hasBreadcrumbs ? 106 : 64),
+            child: topRow,
+          ),
         ),
-      ),
       if (_offline)
         SliverToBoxAdapter(child: _buildOfflineSummary(context, sync)),
       // Files List / Grid
@@ -939,12 +949,17 @@ class _FilesViewState extends State<FilesView> {
       // draws the body behind the bar instead (as does a frosted bar), so it
       // needs the bar's own footprint added on top or the last row ends up
       // under it.
-      if (NooBottomBar.drawsBehindBody(
-        context.watch<SettingsController>().bottomBarStyle,
-        context.watch<SettingsController>().bottomBarFrosted,
-      ))
+      if (selectionAtBottom ||
+          NooBottomBar.drawsBehindBody(
+            context.watch<SettingsController>().bottomBarStyle,
+            context.watch<SettingsController>().bottomBarFrosted,
+          ))
         SliverToBoxAdapter(
-          child: SizedBox(height: bottomBarClearance(context)),
+          child: SizedBox(
+            height:
+                bottomBarClearance(context) +
+                (selectionAtBottom ? SelectionBarOverlay.clearance : 0),
+          ),
         ),
     ];
 
@@ -958,38 +973,43 @@ class _FilesViewState extends State<FilesView> {
           browser.navigateUp();
         }
       },
-      child: ColoredBox(
-        color: colors.bg,
-        child: RefreshIndicator(
-          color: colors.accent,
-          backgroundColor: colors.surface,
-          onRefresh: () {
-            unawaited(sync.syncOnPull());
-            return browser.reload();
-          },
-          // `topBarSliver`'s floating header can collapse all the way to
-          // zero height (fully scrolled away), at which point the sticky
-          // controls row right below it in `contentSlivers` would otherwise
-          // ride up underneath the status bar instead of stopping below it
-          // - the floating top bar used to be the only thing reserving that
-          // space (via its own internal `SafeArea`), and that reservation
-          // disappears along with it once it's fully hidden. Wrapping the
-          // whole scroll view keeps the inset outside the scrolling region
-          // entirely, so it's never implicated in the floating header's own
-          // collapse/reveal math - safe to apply unconditionally, since
-          // desktop's `MediaQuery.padding.top` is 0 anyway (no topBar / no
-          // status bar there).
-          child: SafeArea(
-            top: true,
-            bottom: false,
-            child: CustomScrollView(
-              controller: widget.scrollController,
-              // Pull-to-refresh needs a scroll physics that allows dragging
-              // past the edge even when content doesn't fill the viewport -
-              // an empty or single-item list otherwise can't be pulled at
-              // all under the platform default physics.
-              physics: const AlwaysScrollableScrollPhysics(),
-              slivers: contentSlivers,
+      child: SelectionBarOverlay(
+        bar: selectionAtBottom
+            ? _buildSelectionBar(context, selectedItems)
+            : null,
+        child: ColoredBox(
+          color: colors.bg,
+          child: RefreshIndicator(
+            color: colors.accent,
+            backgroundColor: colors.surface,
+            onRefresh: () {
+              unawaited(sync.syncOnPull());
+              return browser.reload();
+            },
+            // `topBarSliver`'s floating header can collapse all the way to
+            // zero height (fully scrolled away), at which point the sticky
+            // controls row right below it in `contentSlivers` would otherwise
+            // ride up underneath the status bar instead of stopping below it
+            // - the floating top bar used to be the only thing reserving that
+            // space (via its own internal `SafeArea`), and that reservation
+            // disappears along with it once it's fully hidden. Wrapping the
+            // whole scroll view keeps the inset outside the scrolling region
+            // entirely, so it's never implicated in the floating header's own
+            // collapse/reveal math - safe to apply unconditionally, since
+            // desktop's `MediaQuery.padding.top` is 0 anyway (no topBar / no
+            // status bar there).
+            child: SafeArea(
+              top: true,
+              bottom: false,
+              child: CustomScrollView(
+                controller: widget.scrollController,
+                // Pull-to-refresh needs a scroll physics that allows dragging
+                // past the edge even when content doesn't fill the viewport -
+                // an empty or single-item list otherwise can't be pulled at
+                // all under the platform default physics.
+                physics: const AlwaysScrollableScrollPhysics(),
+                slivers: contentSlivers,
+              ),
             ),
           ),
         ),

lib/views/photos_view.dart

@@ -19,7 +19,6 @@ import '../widgets/filter_mode_rows.dart';
 import '../widgets/noo/core/noo_button.dart';
 import '../widgets/noo/core/noo_chip.dart';
 import '../widgets/noo/core/noo_segmented_control.dart';
-import '../widgets/noo/core/noo_toggle.dart';
 import '../widgets/noo/files/noo_file_kind.dart';
 import '../widgets/noo/lists/noo_grouped_list.dart';
 import '../widgets/noo/lists/noo_selection_bar.dart';
@@ -31,6 +30,7 @@ import '../widgets/noo/overlays/noo_sheet.dart';
 import '../widgets/share_sheet.dart';
 import '../widgets/sort_menu_button.dart' show sortFieldLabel;
 import '../widgets/sticky_header_delegate.dart';
+import '../widgets/selection_bar_overlay.dart';
 import '../widgets/tabs/tab_state_slivers.dart';
 import 'file_viewer_screen.dart';
 import 'move_copy_destination_picker.dart';
@@ -58,8 +58,14 @@ class PhotosView extends StatefulWidget {
   /// This tab's own shell top bar, planted as its first sliver - see
   /// `buildAppTabView`'s doc comment. Null on desktop and while picking.
   final PreferredSizeWidget? topBar;
+  final ValueChanged<bool>? onSelectionChanged;
 
-  const PhotosView({super.key, required this.scrollController, this.topBar});
+  const PhotosView({
+    super.key,
+    required this.scrollController,
+    this.topBar,
+    this.onSelectionChanged,
+  });
 
   @override
   State<PhotosView> createState() => _PhotosViewState();
@@ -82,10 +88,12 @@ class _PhotosViewState extends State<PhotosView> {
     setState(() {
       if (!_selectedIds.remove(item.id)) _selectedIds.add(item.id);
     });
+    widget.onSelectionChanged?.call(_isSelecting);
   }
 
   void _clearSelection() {
     setState(_selectedIds.clear);
+    widget.onSelectionChanged?.call(false);
   }
 
   /// Mirrors `FilesView._handlePickTap` - Photos has no folders, so this is
@@ -215,6 +223,10 @@ class _PhotosViewState extends State<PhotosView> {
 
   @override
   Widget build(BuildContext context) {
+    final selectionAtBottom =
+        _isSelecting &&
+        context.watch<SettingsController>().selectionBarPosition ==
+            SelectionBarPosition.bottom;
     final colors = context.nooColors;
     final isDesktop = NooLayout.isDesktop(context);
     final photosController = context.watch<PhotosController>();
@@ -248,23 +260,25 @@ class _PhotosViewState extends State<PhotosView> {
       if (widget.topBar != null) topBarSliver(widget.topBar!),
       // Sticky while browsing; once selecting, the selection bar takes over
       // the same slot instead.
-      SliverPersistentHeader(
-        pinned: !_isSelecting,
-        delegate: StickyHeaderDelegate(
-          height: _isSelecting ? 56 : 64,
-          child: _isSelecting
-              ? _buildSelectionBar(context, pick, selectedItems)
-              : Padding(
-                  padding: const EdgeInsets.fromLTRB(
-                    NooSpace.sm,
-                    NooSpace.sm,
-                    NooSpace.sm,
-                    NooSpace.xs,
+      if (!selectionAtBottom)
+        SliverPersistentHeader(
+          pinned: true,
+          delegate: StickyHeaderDelegate(
+            floating: _isSelecting,
+            height: _isSelecting ? 56 : 64,
+            child: _isSelecting
+                ? _buildSelectionBar(context, pick, selectedItems)
+                : Padding(
+                    padding: const EdgeInsets.fromLTRB(
+                      NooSpace.sm,
+                      NooSpace.sm,
+                      NooSpace.sm,
+                      NooSpace.xs,
+                    ),
+                    child: controlsRow,
                   ),
-                  child: controlsRow,
-                ),
+          ),
         ),
-      ),
 
       if (photosController.isLoading && allPhotos.isEmpty)
         const SliverFillRemaining(
@@ -360,7 +374,13 @@ class _PhotosViewState extends State<PhotosView> {
       // Clearance so the last row isn't hidden behind the nav bar,
       // regardless of grid length - see `bottomBarClearance`'s own doc
       // comment for why this has to be dynamic rather than a flat 100.
-      SliverToBoxAdapter(child: SizedBox(height: bottomBarClearance(context))),
+      SliverToBoxAdapter(
+        child: SizedBox(
+          height:
+              bottomBarClearance(context) +
+              (selectionAtBottom ? SelectionBarOverlay.clearance : 0),
+        ),
+      ),
     ];
 
     return PopScope(
@@ -368,24 +388,29 @@ class _PhotosViewState extends State<PhotosView> {
       onPopInvokedWithResult: (didPop, result) {
         if (!didPop && _isSelecting) _clearSelection();
       },
-      child: ColoredBox(
-        color: colors.bg,
-        child: RefreshIndicator(
-          color: colors.accent,
-          backgroundColor: colors.surface,
-          onRefresh: photosController.fetchAllMedia,
-          // See files_view.dart's identical fix - without this, the sticky
-          // controls row rides up under the status bar once the floating
-          // top bar above it fully collapses.
-          child: SafeArea(
-            top: true,
-            bottom: false,
-            child: CustomScrollView(
-              controller: widget.scrollController,
-              // See files_view.dart's identical fix - without this, pull-to-
-              // refresh can't be triggered on an empty or single-item list.
-              physics: const AlwaysScrollableScrollPhysics(),
-              slivers: contentSlivers,
+      child: SelectionBarOverlay(
+        bar: selectionAtBottom
+            ? _buildSelectionBar(context, pick, selectedItems)
+            : null,
+        child: ColoredBox(
+          color: colors.bg,
+          child: RefreshIndicator(
+            color: colors.accent,
+            backgroundColor: colors.surface,
+            onRefresh: photosController.fetchAllMedia,
+            // See files_view.dart's identical fix - without this, the sticky
+            // controls row rides up under the status bar once the floating
+            // top bar above it fully collapses.
+            child: SafeArea(
+              top: true,
+              bottom: false,
+              child: CustomScrollView(
+                controller: widget.scrollController,
+                // See files_view.dart's identical fix - without this, pull-to-
+                // refresh can't be triggered on an empty or single-item list.
+                physics: const AlwaysScrollableScrollPhysics(),
+                slivers: contentSlivers,
+              ),
             ),
           ),
         ),
@@ -554,17 +579,32 @@ class _PhotosViewState extends State<PhotosView> {
                   ),
                 ),
                 const SizedBox(height: 22),
-                NooGroupedList(
-                  children: [
-                    NooSettingsRow(
-                      icon: LucideIcons.heart,
-                      label: const Text('Favorites only'),
-                      trailing: NooToggle(
-                        checked: photos.showFavoritesOnly,
-                        onChanged: (_) => photos.toggleFavoritesFilter(),
+                FilterSection(
+                  icon: LucideIcons.heart,
+                  title: 'Favorites',
+                  child: NooSegmentedControl<bool>(
+                    fill: true,
+                    onSurface: true,
+                    labelOnlySelected: true,
+                    value: photos.showFavoritesOnly,
+                    onChanged: (value) {
+                      if (value != photos.showFavoritesOnly) {
+                        photos.toggleFavoritesFilter();
+                      }
+                    },
+                    options: const [
+                      NooSegmentOption(
+                        value: false,
+                        icon: LucideIcons.layers,
+                        label: 'All',
                       ),
-                    ),
-                  ],
+                      NooSegmentOption(
+                        value: true,
+                        icon: LucideIcons.heart,
+                        label: 'Favorites only',
+                      ),
+                    ],
+                  ),
                 ),
                 const SizedBox(height: 22),
                 HiddenFilesFilterRow(

lib/widgets/app_tab_view_builder.dart

@@ -24,6 +24,7 @@ Widget buildAppTabView(
   AppTab tab,
   ScrollController controller, {
   PreferredSizeWidget? topBar,
+  ValueChanged<bool>? onSelectionChanged,
 }) {
   switch (tab) {
     case AppTab.files:
@@ -33,11 +34,20 @@ Widget buildAppTabView(
         key: const ValueKey('files'),
         scrollController: controller,
         topBar: topBar,
+        onSelectionChanged: onSelectionChanged,
       );
     case AppTab.photos:
-      return PhotosView(scrollController: controller, topBar: topBar);
+      return PhotosView(
+        scrollController: controller,
+        topBar: topBar,
+        onSelectionChanged: onSelectionChanged,
+      );
     case AppTab.favorites:
-      return FavoritesView(scrollController: controller, topBar: topBar);
+      return FavoritesView(
+        scrollController: controller,
+        topBar: topBar,
+        onSelectionChanged: onSelectionChanged,
+      );
     case AppTab.activity:
       return ActivityView(scrollController: controller, topBar: topBar);
     case AppTab.trash:
@@ -52,6 +62,7 @@ Widget buildAppTabView(
         scrollController: controller,
         offline: true,
         topBar: topBar,
+        onSelectionChanged: onSelectionChanged,
       );
   }
 }

lib/widgets/app_top_bar.dart

@@ -1,9 +1,12 @@
 import 'package:flutter/material.dart';
 import 'package:lucide_icons_flutter/lucide_icons.dart';
 import '../models/app_tab.dart';
+import '../providers/settings_controller.dart';
 import 'avatar_menu.dart';
 import 'create_menu.dart';
 import 'noo/nav/noo_top_bar.dart';
+import 'noo/core/noo_button.dart';
+import '../theme/design_tokens.dart';
 import 'shell/shell_common.dart';
 
 /// The shell's mobile top bar (DESIGN_SYSTEM.md 3, "Mobile"): every regular
@@ -11,9 +14,9 @@ import 'shell/shell_common.dart';
 /// tabs built their own via `SyncedHeaderScaffold`, which the rework drops).
 /// Built on [NooTopBar]:
 ///
-/// - iOS: `menu` leading, `plus` (Files only - no tab besides Files has a
-///   create/upload flow) and the account avatar trailing, then the large
-///   title, then an inline search field that opens [SearchView].
+/// - iOS: large title, Upload button and account avatar in one row, then
+///   an inline search field that opens [SearchView]. Upload shares Android's
+///   Auto/Collapsed/Expanded preference.
 /// - Android: `menu`, title, avatar actions. Upload has no top-bar icon
 ///   here - it's the [NooFab] `MainShellView` shows instead. When search
 ///   isn't in the bottom bar, an inline search-field-styled launcher
@@ -37,6 +40,8 @@ class AppTopBar extends StatelessWidget implements PreferredSizeWidget {
   final AppTab tab;
   final bool searchInBottomBar;
   final NooNavMenuStyle navMenuStyle;
+  final AvatarPosition avatarPosition;
+  final FabStyle uploadButtonStyle;
 
   const AppTopBar({
     super.key,
@@ -44,15 +49,23 @@ class AppTopBar extends StatelessWidget implements PreferredSizeWidget {
     required this.tab,
     this.searchInBottomBar = false,
     this.navMenuStyle = NooNavMenuStyle.drawer,
+    this.avatarPosition = AvatarPosition.top,
+    this.uploadButtonStyle = FabStyle.auto,
   });
 
   bool get _ios => style == NooNavStyle.ios;
   bool get _showSearch => !searchInBottomBar;
+  bool get _uploadCollapsed => switch (uploadButtonStyle) {
+    FabStyle.auto => tab != AppTab.files && tab != AppTab.photos,
+    FabStyle.mini => true,
+    FabStyle.expanded => false,
+  };
 
   @override
   Size get preferredSize => NooTopBar(
     style: style,
     title: tab.label,
+    iosActionsInTitleRow: true,
     // A throwaway placeholder purely to make preferredSize's "is there a
     // search slot" check match what build() actually shows - never
     // inserted into the tree, so its content doesn't matter.
@@ -64,6 +77,7 @@ class AppTopBar extends StatelessWidget implements PreferredSizeWidget {
     return NooTopBar(
       style: style,
       title: tab.label,
+      iosActionsInTitleRow: true,
       onMenu: navMenuStyle == NooNavMenuStyle.drawer
           ? () => Scaffold.of(context).openDrawer()
           : null,
@@ -74,23 +88,69 @@ class AppTopBar extends StatelessWidget implements PreferredSizeWidget {
           ? const ShellSearchLauncher()
           : null,
       actions: [
-        if (_ios && tab == AppTab.files)
-          NooTopBarButton(
-            icon: LucideIcons.plus,
-            tooltip: 'Create',
-            onTap: () => showCreateMenu(context),
+        if (_ios)
+          Tooltip(
+            message: 'Upload',
+            child: Semantics(
+              button: true,
+              label: 'Upload',
+              child: Builder(
+                builder: (context) {
+                  Widget button(double progress) => NooButton(
+                    variant: NooButtonVariant.tonal,
+                    size: NooButtonSize.compact,
+                    icon: LucideIcons.plus,
+                    expansion: progress,
+                    onTap: () => showCreateMenu(context),
+                    child: const Text('Upload'),
+                  );
+                  final scope = context
+                      .dependOnInheritedWidgetOfExactType<
+                        UploadButtonAnimation
+                      >();
+                  if (scope != null) return button(scope.progress);
+                  return TweenAnimationBuilder<double>(
+                    tween: Tween(end: _uploadCollapsed ? 0 : 1),
+                    duration: MediaQuery.disableAnimationsOf(context)
+                        ? Duration.zero
+                        : NooMotion.base,
+                    curve: NooMotion.ease,
+                    builder: (context, progress, _) => button(progress),
+                  );
+                },
+              ),
+            ),
+          ),
+        if (navMenuStyle != NooNavMenuStyle.avatarMenu ||
+            avatarPosition == AvatarPosition.top)
+          AvatarNavigationAnchor(
+            child: Builder(
+              builder: (anchorContext) => ShellAvatarButton(
+                hitBox: _ios ? 44 : 48,
+                onTap: navMenuStyle == NooNavMenuStyle.avatarMenu
+                    ? () => showAvatarMenu(anchorContext)
+                    : null,
+                label: navMenuStyle == NooNavMenuStyle.avatarMenu
+                    ? 'Menu'
+                    : 'Accounts',
+              ),
+            ),
           ),
-        ShellAvatarButton(
-          hitBox: _ios ? 44 : 48,
-          onTap: navMenuStyle == NooNavMenuStyle.avatarMenu
-              ? () => showAvatarMenu(context)
-              : null,
-          label: navMenuStyle == NooNavMenuStyle.avatarMenu
-              ? 'Menu'
-              : 'Accounts',
-        ),
       ],
       search: _ios && _showSearch ? const ShellSearchLauncher(ios: true) : null,
     );
   }
 }
+
+/// Shares one transition across the shell's separately mounted tab headers.
+class UploadButtonAnimation extends InheritedWidget {
+  final double progress;
+  const UploadButtonAnimation({
+    super.key,
+    required this.progress,
+    required super.child,
+  });
+  @override
+  bool updateShouldNotify(UploadButtonAnimation oldWidget) =>
+      progress != oldWidget.progress;
+}

lib/widgets/avatar_menu.dart

@@ -1,3 +1,4 @@
+import 'dart:ui' show ImageFilter, lerpDouble;
 import 'package:flutter/material.dart';
 import 'package:lucide_icons_flutter/lucide_icons.dart';
 import 'package:provider/provider.dart';
@@ -6,53 +7,83 @@ import '../providers/session_controller.dart';
 import '../providers/settings_controller.dart';
 import '../providers/trash_controller.dart';
 import '../theme/design_tokens.dart';
-import 'noo/core/noo_avatar.dart';
 import '../views/login_view.dart';
+import 'noo/core/noo_avatar.dart';
 import 'noo/core/noo_badge.dart';
+import 'noo/nav/noo_bottom_bar.dart';
+import 'noo/noo_layout.dart';
 import 'noo/lists/noo_settings_row.dart';
 import 'shell/shell_common.dart';
 
-/// The dropdown [ShellAvatarButton] opens when
-/// [SettingsController.navMenuStyle] is [NooNavMenuStyle.avatarMenu] -
-/// everything [AppDrawer] holds beyond its storage bar (hidden tabs,
-/// Settings), reached from the avatar instead of a hamburger-triggered
-/// left `Drawer`. Built with `showGeneralDialog` rather than a `Drawer`/
-/// `showNooSheet`/`showNooDialog` - this needs a transparent (non-dimming)
-/// barrier and a card anchored under the top bar rather than a modal
-/// sheet/dialog, and there's no existing anchored-popup primitive in this
-/// app to reuse (`PopupMenuButton`'s own width doesn't stretch to the full
-/// content column the way this needs to).
-Future<void> showAvatarMenu(BuildContext context) {
-  return showGeneralDialog<void>(
+/// The shell supplies the expanding-card presentation. Standalone top bars
+/// retain a dialog fallback (for screens outside the shell).
+Future<void> showAvatarMenu(BuildContext context) async {
+  final scope = AvatarNavigationScope.maybeOf(context);
+  if (scope != null) {
+    scope._host.openFrom(context);
+    return;
+  }
+  await showGeneralDialog<void>(
     context: context,
     barrierColor: Colors.transparent,
     barrierDismissible: true,
     barrierLabel: 'Close menu',
-    transitionDuration: NooMotion.fast,
-    pageBuilder: (context, _, _) => const _AvatarMenuContent(),
+    transitionDuration: NooMotion.base,
+    pageBuilder: (context, _, _) => Align(
+      alignment: Alignment.topCenter,
+      child: SafeArea(
+        bottom: false,
+        child: Padding(
+          padding: const EdgeInsets.symmetric(horizontal: NooSpace.sm),
+          child: _StandaloneAvatarCard(),
+        ),
+      ),
+    ),
     transitionBuilder: (context, animation, _, child) => FadeTransition(
       opacity: animation,
       child: ScaleTransition(
         alignment: Alignment.topRight,
-        scale: Tween<double>(
-          begin: 0.96,
-          end: 1,
-        ).animate(CurvedAnimation(parent: animation, curve: NooMotion.ease)),
+        scale: Tween(begin: .88, end: 1.0).animate(
+          CurvedAnimation(parent: animation, curve: Curves.easeOutCubic),
+        ),
         child: child,
       ),
     ),
   );
 }
 
-class _AvatarMenuContent extends StatefulWidget {
-  const _AvatarMenuContent();
-
+class _StandaloneAvatarCard extends StatefulWidget {
   @override
-  State<_AvatarMenuContent> createState() => _AvatarMenuContentState();
+  State<_StandaloneAvatarCard> createState() => _StandaloneAvatarCardState();
 }
 
-class _AvatarMenuContentState extends State<_AvatarMenuContent> {
-  bool _expanded = false;
+class _StandaloneAvatarCardState extends State<_StandaloneAvatarCard> {
+  bool expanded = false;
+  @override
+  Widget build(BuildContext context) => AvatarMenuCard(
+    expanded: expanded,
+    onExpand: () => setState(() => expanded = !expanded),
+    onClose: () => Navigator.pop(context),
+  );
+}
+
+/// Account controls and hidden-tab navigation, shared by both card positions.
+class AvatarMenuCard extends StatelessWidget {
+  final bool bottom;
+  final bool expanded;
+  final bool movingAvatar;
+  final bool showHeaderAvatar;
+  final VoidCallback onExpand;
+  final VoidCallback onClose;
+  const AvatarMenuCard({
+    super.key,
+    this.bottom = false,
+    this.movingAvatar = false,
+    this.showHeaderAvatar = true,
+    required this.expanded,
+    required this.onExpand,
+    required this.onClose,
+  });
 
   @override
   Widget build(BuildContext context) {
@@ -60,226 +91,310 @@ class _AvatarMenuContentState extends State<_AvatarMenuContent> {
     final session = context.watch<SessionController>();
     final settings = context.watch<SettingsController>();
     final trashCount = context.watch<TrashController>().items.length;
-    final hiddenTabs = settings.tabOrder
-        .where((t) => settings.hiddenTabs.contains(t))
-        .toList();
-
-    void closeAndOpenSettings() {
-      Navigator.pop(context);
+    void settingsTap() {
+      onClose();
       openSettings(context);
     }
 
-    return Align(
-      alignment: Alignment.topCenter,
-      // Just the status-bar inset, not the top bar's own height on top of
-      // it - the card covers the top bar (title included) rather than
-      // sitting below it, so opening it reads as the avatar growing into
-      // this instead of a separate element appearing underneath the row
-      // it came from.
-      child: SafeArea(
-        bottom: false,
-        child: Padding(
-          // Same side inset as the Files list's rows (`NooSpace.sm`), so the
-          // card is as wide as the list beneath it.
-          padding: const EdgeInsets.symmetric(horizontal: NooSpace.sm),
-          child: SizedBox(
-            width: double.infinity,
-            child: Container(
-              // No `color`/`clipBehavior` here - a `Container` with both a
-              // `border` and `clipBehavior` set paints the border as part
-              // of its *outer* decoration, then paints its (clipped) child
-              // on top right up to that same boundary with no gap for the
-              // border's own stroke width to show through. An opaque child
-              // touching that edge - every row below has its own full-bleed
-              // `Material` fill - then paints straight over the inner half
-              // of the border, which read as the border going missing
-              // specifically wherever an opaque row sits (every corner but
-              // the two by the header, which has no opaque fill of its
-              // own). The 1px `Padding` + inset `ClipRRect` below keeps the
-              // clipped, filled content entirely inside the border's own
-              // stroke instead of racing it for the same pixels.
-              decoration: BoxDecoration(
-                border: Border.all(color: colors.line),
-                borderRadius: BorderRadius.circular(NooRadii.card),
-                // `nooDialogShadow` alone is a wide, soft, fairly faint
-                // shadow - built for a desktop dialog with plenty of room
-                // to fall off into. On a small card over a dark theme's
-                // near-black `bg`, that falloff is too gradual to read as
-                // elevation at all (a dark shadow needs real density close
-                // to the edge to be visible against an already-dark
-                // backdrop). A second, tighter, more opaque contact shadow
-                // underneath it gives an immediate value-step right at the
-                // card's edge in both themes, with the soft one still
-                // doing the wider ambient falloff on top.
-                boxShadow: const [
-                  BoxShadow(
-                    color: Color(0x40000000),
-                    blurRadius: 12,
-                    offset: Offset(0, 4),
-                  ),
-                  nooDialogShadow,
-                ],
-              ),
-              child: Padding(
-                padding: const EdgeInsets.all(1),
-                child: ClipRRect(
-                  borderRadius: BorderRadius.circular(NooRadii.card - 1),
-                  child: Material(
-                    color: colors.surface,
-                    child: Column(
-                      mainAxisSize: MainAxisSize.min,
-                      children: [
-                        // Avatar on the right, name/host on the left - mirrors the
-                        // top bar's own right-aligned avatar exactly, so this
-                        // header reads as a continuation of the button that
-                        // opened it rather than a disconnected card.
-                        InkWell(
-                          onTap: () => setState(() => _expanded = !_expanded),
-                          child: Padding(
-                            padding: const EdgeInsets.all(NooSpace.md),
-                            child: Row(
-                              children: [
-                                Expanded(
-                                  child: Column(
-                                    crossAxisAlignment:
-                                        CrossAxisAlignment.start,
-                                    children: [
-                                      Text(
-                                        session.username,
-                                        maxLines: 1,
-                                        overflow: TextOverflow.ellipsis,
-                                        style: NooText.bodyL.copyWith(
-                                          fontWeight: FontWeight.w600,
-                                          color: colors.fg1,
-                                        ),
-                                      ),
-                                      const SizedBox(height: 2),
-                                      Text(
-                                        serverHost(session.serverUrl),
-                                        maxLines: 1,
-                                        overflow: TextOverflow.ellipsis,
-                                        style: NooText.meta.copyWith(
-                                          color: colors.fg3,
-                                        ),
-                                      ),
-                                    ],
-                                  ),
-                                ),
-                                const SizedBox(width: 12),
-                                NooAvatar(
-                                  initials: accountInitial(session.username),
-                                  current: true,
-                                  size: 40,
-                                ),
-                                const SizedBox(width: 8),
-                                Container(
-                                  width: 36,
-                                  height: 36,
-                                  decoration: BoxDecoration(
-                                    shape: BoxShape.circle,
-                                    color: colors.fg1.withValues(alpha: 0.08),
-                                  ),
-                                  child: Icon(
-                                    _expanded
-                                        ? LucideIcons.chevronUp
-                                        : LucideIcons.chevronDown,
-                                    size: 20,
-                                    color: colors.fg2,
-                                  ),
-                                ),
-                              ],
-                            ),
-                          ),
-                        ),
-                        AnimatedSize(
-                          duration: NooMotion.fast,
-                          curve: NooMotion.ease,
-                          alignment: Alignment.topCenter,
-                          child: _expanded
-                              ? Column(
-                                  children: [
-                                    for (final account in session.accounts)
-                                      if (account.id != session.activeAccountId)
-                                        _OtherAccountRow(
-                                          name: account.username,
-                                          host: serverHost(account.serverUrl),
-                                          onTap: () {
-                                            Navigator.pop(context);
-                                            session.switchAccount(account.id);
-                                          },
-                                        ),
-                                    Padding(
-                                      padding: const EdgeInsets.fromLTRB(
-                                        NooSpace.md,
-                                        0,
-                                        NooSpace.md,
-                                        NooSpace.md,
-                                      ),
-                                      child: Row(
-                                        spacing: 8,
-                                        children: [
-                                          Expanded(
-                                            child: _AccountButton(
-                                              icon: LucideIcons.userPlus,
-                                              label: 'Add Account',
-                                              onTap: () {
-                                                final nav = Navigator.of(
-                                                  context,
-                                                );
-                                                nav.pop();
-                                                nav.push(
-                                                  MaterialPageRoute(
-                                                    builder: (_) =>
-                                                        const LoginView(
-                                                          isAddingAccount: true,
-                                                        ),
-                                                  ),
-                                                );
-                                              },
-                                            ),
-                                          ),
-                                          Expanded(
-                                            child: _AccountButton(
-                                              icon: LucideIcons.users,
-                                              label: 'Manage Accounts',
-                                              onTap: closeAndOpenSettings,
-                                            ),
-                                          ),
-                                        ],
-                                      ),
-                                    ),
-                                  ],
-                                )
-                              : const SizedBox(width: double.infinity),
-                        ),
-                        if (hiddenTabs.isNotEmpty) ...[
-                          Divider(height: 1, color: colors.line),
-                          for (final tab in hiddenTabs)
-                            NooSettingsRow(
-                              icon: tab.icon,
-                              label: Text(tab.label),
-                              trailing: tab == AppTab.trash && trashCount > 0
-                                  ? NooBadge(
-                                      tone: NooBadgeTone.accent,
-                                      child: Text('$trashCount'),
-                                    )
-                                  : null,
-                              onTap: () {
-                                Navigator.pop(context);
-                                settings.requestTab(tab);
-                              },
-                            ),
-                        ],
-                        Divider(height: 1, color: colors.line),
-                        NooSettingsRow(
-                          icon: LucideIcons.settings,
-                          label: const Text('Settings'),
-                          onTap: closeAndOpenSettings,
-                        ),
-                      ],
+    final header = InkWell(
+      onTap: onExpand,
+      child: Padding(
+        padding: const EdgeInsets.all(NooSpace.md),
+        child: Row(
+          children: [
+            Expanded(
+              child: Column(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: [
+                  Text(
+                    session.username,
+                    maxLines: 1,
+                    overflow: TextOverflow.ellipsis,
+                    style: NooText.bodyL.copyWith(
+                      fontWeight: FontWeight.w600,
+                      color: colors.fg1,
                     ),
                   ),
+                  const SizedBox(height: 2),
+                  Text(
+                    serverHost(session.serverUrl),
+                    maxLines: 1,
+                    overflow: TextOverflow.ellipsis,
+                    style: NooText.meta.copyWith(color: colors.fg3),
+                  ),
+                ],
+              ),
+            ),
+            Icon(
+              expanded ? LucideIcons.chevronUp : LucideIcons.chevronDown,
+              size: 20,
+              color: colors.fg2,
+            ),
+            if (showHeaderAvatar) const SizedBox(width: 12),
+            if (showHeaderAvatar)
+              movingAvatar
+                  ? const SizedBox.square(dimension: 32)
+                  : NooAvatar(
+                      initials: accountInitial(session.username),
+                      current: true,
+                      size: 32,
+                    ),
+          ],
+        ),
+      ),
+    );
+    final attached = bottom && !showHeaderAvatar;
+    final accountSection = AnimatedSize(
+      duration: NooMotion.base,
+      curve: Curves.easeOutCubic,
+      alignment: bottom ? Alignment.bottomCenter : Alignment.topCenter,
+      child: expanded
+          ? Column(
+              children: [
+                for (final account in session.accounts)
+                  if (account.id != session.activeAccountId)
+                    _OtherAccountRow(
+                      name: account.username,
+                      host: serverHost(account.serverUrl),
+                      onTap: () {
+                        onClose();
+                        session.switchAccount(account.id);
+                      },
+                    ),
+                Padding(
+                  padding: const EdgeInsets.all(NooSpace.md),
+                  child: Row(
+                    spacing: 8,
+                    children: [
+                      Expanded(
+                        child: _AccountButton(
+                          icon: LucideIcons.userPlus,
+                          label: 'Add Account',
+                          onTap: () {
+                            final nav = Navigator.of(context);
+                            onClose();
+                            nav.push(
+                              MaterialPageRoute(
+                                builder: (_) =>
+                                    const LoginView(isAddingAccount: true),
+                              ),
+                            );
+                          },
+                        ),
+                      ),
+                      Expanded(
+                        child: _AccountButton(
+                          icon: LucideIcons.users,
+                          label: 'Manage Accounts',
+                          onTap: settingsTap,
+                        ),
+                      ),
+                    ],
+                  ),
                 ),
+              ],
+            )
+          : const SizedBox(width: double.infinity),
+    );
+    final rows = Column(
+      mainAxisSize: MainAxisSize.min,
+      children: [
+        if (!attached) accountSection,
+        for (final tab in settings.tabOrder.where(settings.hiddenTabs.contains))
+          NooSettingsRow(
+            backgroundColor: Colors.transparent,
+            icon: tab.icon,
+            label: Text(tab.label),
+            trailing: tab == AppTab.trash && trashCount > 0
+                ? NooBadge(
+                    tone: NooBadgeTone.accent,
+                    child: Text('$trashCount'),
+                  )
+                : null,
+            onTap: () {
+              onClose();
+              settings.requestTab(tab);
+            },
+          ),
+        Divider(height: 1, color: colors.line),
+        NooSettingsRow(
+          backgroundColor: Colors.transparent,
+          icon: LucideIcons.settings,
+          label: const Text('Settings'),
+          onTap: settingsTap,
+        ),
+        if (attached) ...[header, accountSection],
+      ],
+    );
+    final content = SizedBox(
+      width: double.infinity,
+      child: Padding(
+        padding: const EdgeInsets.all(1),
+        child: ClipRRect(
+          borderRadius: BorderRadius.circular(NooRadii.card - 1),
+          child: Material(
+            color: Colors.transparent,
+            child: Column(
+              mainAxisSize: MainAxisSize.min,
+              children: [
+                if (!bottom) header,
+                Flexible(
+                  fit: FlexFit.loose,
+                  child: SingleChildScrollView(child: rows),
+                ),
+                if (bottom && !attached) header,
+              ],
+            ),
+          ),
+        ),
+      ),
+    );
+    return movingAvatar
+        ? content
+        : _AvatarSurface(
+            radius: BorderRadius.circular(NooRadii.card),
+            child: content,
+          );
+  }
+}
+
+class _AvatarSurface extends StatelessWidget {
+  final BorderRadius radius;
+  final Widget child;
+  final bool connected;
+  const _AvatarSurface({
+    required this.radius,
+    required this.child,
+    this.connected = false,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final settings = context.watch<SettingsController>();
+    final colors = context.nooColors;
+    final frosted = settings.bottomBarFrosted;
+    final surface = DecoratedBox(
+      decoration: BoxDecoration(
+        color: frosted
+            ? colors.surface.withValues(alpha: settings.bottomBarFrostedOpacity)
+            : colors.surface,
+        border: connected
+            ? null
+            : Border.all(color: colors.line),
+        borderRadius: radius,
+      ),
+      child: Padding(padding: const EdgeInsets.all(1), child: child),
+    );
+    return DecoratedBox(
+      decoration: BoxDecoration(
+        borderRadius: radius,
+        boxShadow: frosted || connected ? null : const [nooDialogShadow],
+      ),
+      child: ClipRRect(
+        borderRadius: radius,
+        child: frosted
+            ? BackdropFilter(
+                filter: ImageFilter.blur(
+                  sigmaX: settings.bottomBarFrostedBlur,
+                  sigmaY: settings.bottomBarFrostedBlur,
+                ),
+                child: surface,
+              )
+            : surface,
+      ),
+    );
+  }
+}
+
+class AvatarNavigationScope extends InheritedNotifier<AnimationController> {
+  final _AvatarNavigationHostState _host;
+  AvatarNavigationScope._({
+    required _AvatarNavigationHostState host,
+    required super.child,
+  }) : _host = host,
+       super(notifier: host.animation);
+  static AvatarNavigationScope? maybeOf(BuildContext context) =>
+      context.dependOnInheritedWidgetOfExactType<AvatarNavigationScope>();
+  double get progress =>
+      Curves.easeInOutCubicEmphasized.transform(_host.animation.value);
+  bool get bottom => _host.bottom;
+  void close() => _host.close();
+  @override
+  bool updateShouldNotify(AvatarNavigationScope oldWidget) => true;
+}
+
+/// Keeps the top avatar's layout slot while the single animated avatar moves
+/// into the card. Its own context gives us the real screen-space origin.
+class AvatarNavigationAnchor extends StatelessWidget {
+  final Widget child;
+  const AvatarNavigationAnchor({super.key, required this.child});
+  @override
+  Widget build(BuildContext context) {
+    final scope = AvatarNavigationScope.maybeOf(context);
+    return IgnorePointer(
+      ignoring: scope != null && scope.progress > 0,
+      child: ClipRect(
+        child: Align(
+          alignment: Alignment.centerRight,
+          widthFactor: 1 - (scope?.progress ?? 0),
+          child: Opacity(
+            opacity: scope != null && scope.progress > 0 ? 0 : 1,
+            child: child,
+          ),
+        ),
+      ),
+    );
+  }
+}
+
+/// Only the content pane moves; the bottom navigation stays anchored.
+class AvatarNavigationBody extends StatelessWidget {
+  final Widget child;
+  const AvatarNavigationBody({super.key, required this.child});
+  @override
+  Widget build(BuildContext context) {
+    final scope = AvatarNavigationScope.maybeOf(context);
+    return Padding(
+      padding: EdgeInsets.only(
+        top: scope == null || scope.bottom
+            ? 0
+            : (scope._host.cardHeight + 12) * scope.progress,
+      ),
+      child: child,
+    );
+  }
+}
+
+class AvatarNavigationSatellite extends StatelessWidget {
+  final double size;
+  const AvatarNavigationSatellite({super.key, required this.size});
+  @override
+  Widget build(BuildContext context) {
+    final scope = AvatarNavigationScope.maybeOf(context);
+    if (context.watch<SettingsController>().bottomBarStyle ==
+        NooBottomBarStyle.attached) {
+      return Builder(
+        builder: (anchorContext) => ShellAvatarButton(
+          hitBox: size,
+          label: 'Menu',
+          onTap: () => showAvatarMenu(anchorContext),
+        ),
+      );
+    }
+    return IgnorePointer(
+      ignoring: scope != null && scope.progress > 0,
+      child: Opacity(
+        opacity: scope != null && scope.progress > 0 ? 0 : 1,
+        child: SizedBox(
+          width: size,
+          height: size,
+          child: _AvatarSurface(
+            radius: BorderRadius.circular(size / 2),
+            child: Builder(
+              builder: (anchorContext) => ShellAvatarButton(
+                hitBox: size,
+                label: 'Menu',
+                onTap: () => showAvatarMenu(anchorContext),
               ),
             ),
           ),
@@ -289,6 +404,273 @@ class _AvatarMenuContentState extends State<_AvatarMenuContent> {
   }
 }
 
+class AvatarNavigationHost extends StatefulWidget {
+  final Widget child;
+  const AvatarNavigationHost({super.key, required this.child});
+  @override
+  State<AvatarNavigationHost> createState() => _AvatarNavigationHostState();
+}
+
+class _AvatarNavigationHostState extends State<AvatarNavigationHost>
+    with SingleTickerProviderStateMixin {
+  late final AnimationController animation = AnimationController(
+    vsync: this,
+    duration: const Duration(milliseconds: 420),
+    reverseDuration: const Duration(milliseconds: 320),
+  );
+  final GlobalKey measureKey = GlobalKey();
+  Rect? origin;
+  bool bottom = false;
+  bool expanded = false;
+  double cardHeight = 150;
+  bool measuring = false;
+  void measure() {
+    if (measuring) return;
+    measuring = true;
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      measuring = false;
+      if (!mounted) return;
+      final box = measureKey.currentContext?.findRenderObject() as RenderBox?;
+      if (box != null && (box.size.height - cardHeight).abs() > .5) {
+        setState(() => cardHeight = box.size.height);
+      }
+    });
+  }
+
+  void openFrom(BuildContext context) {
+    if (animation.value > 0) {
+      close();
+      return;
+    }
+    final settings = context.read<SettingsController>();
+    final box = context.findRenderObject() as RenderBox?;
+    if (box == null) return;
+    final hostBox = this.context.findRenderObject() as RenderBox;
+    final center = hostBox.globalToLocal(
+      box.localToGlobal(box.size.center(Offset.zero)),
+    );
+    setState(() {
+      bottom = settings.avatarPosition == AvatarPosition.bottom;
+      final diameter = bottom
+          ? NooBottomBar.rowHeight(
+              NooLayout.navStyle(context),
+              settings.bottomBarStyle,
+            )
+          : 32.0;
+      origin = Rect.fromCenter(
+        center: center,
+        width: diameter,
+        height: diameter,
+      );
+      expanded = false;
+    });
+    animation.duration = MediaQuery.disableAnimationsOf(context)
+        ? Duration.zero
+        : const Duration(milliseconds: 420);
+    animation.forward();
+  }
+
+  void close() {
+    animation.reverseDuration = MediaQuery.disableAnimationsOf(context)
+        ? Duration.zero
+        : const Duration(milliseconds: 320);
+    animation.reverse();
+  }
+
+  @override
+  void dispose() {
+    animation.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final settings = context.watch<SettingsController>();
+    final session = context.watch<SessionController>();
+    final enabled = settings.navMenuStyle == NooNavMenuStyle.avatarMenu;
+    return AvatarNavigationScope._(
+      host: this,
+      child: AnimatedBuilder(
+        animation: animation,
+        builder: (context, _) {
+          final progress = Curves.easeInOutCubicEmphasized.transform(
+            animation.value,
+          );
+          return PopScope(
+            canPop: animation.value == 0,
+            onPopInvokedWithResult: (didPop, _) {
+              if (!didPop) close();
+            },
+            child: LayoutBuilder(
+              builder: (context, constraints) {
+                final width = constraints.maxWidth;
+                final height = constraints.maxHeight;
+                final safeTop = MediaQuery.viewPaddingOf(context).top;
+                final attached =
+                    bottom &&
+                    settings.bottomBarStyle == NooBottomBarStyle.attached;
+                final bottomEdge = bottom && origin != null
+                    ? origin!.center.dy -
+                          NooBottomBar.rowHeight(
+                                NooLayout.navStyle(context),
+                                settings.bottomBarStyle,
+                              ) /
+                              2 -
+                          (attached ? 0 : 12)
+                    : height;
+                final maxHeight = (bottomEdge - safeTop - 24).clamp(
+                  72.0,
+                  height * .8,
+                );
+                measure();
+                Widget card() => ConstrainedBox(
+                  constraints: BoxConstraints(maxHeight: maxHeight),
+                  child: AvatarMenuCard(
+                    bottom: bottom,
+                    movingAvatar: true,
+                    showHeaderAvatar: !attached,
+                    expanded: expanded,
+                    onExpand: () => setState(() => expanded = !expanded),
+                    onClose: close,
+                  ),
+                );
+                final target = Rect.fromLTWH(
+                  attached ? 0 : 12,
+                  bottom ? bottomEdge - cardHeight : safeTop + 8,
+                  attached ? width : width - 24,
+                  cardHeight,
+                );
+                final rect = Rect.lerp(
+                  attached
+                      ? Rect.fromLTWH(0, bottomEdge, width, 0)
+                      : origin ?? target,
+                  target,
+                  progress,
+                )!;
+                final radius = attached
+                    ? BorderRadius.vertical(
+                        top: Radius.circular(NooRadii.card * progress),
+                      )
+                    : BorderRadius.circular(
+                        lerpDouble(
+                          (origin?.width ?? 32) / 2,
+                          NooRadii.card,
+                          progress,
+                        )!,
+                      );
+                final avatarTarget = Rect.fromLTWH(
+                  target.right - 49,
+                  bottom ? target.bottom - 49 : target.top + 17,
+                  32,
+                  32,
+                );
+                final avatar = Rect.lerp(
+                  origin == null
+                      ? avatarTarget
+                      : Rect.fromCenter(
+                          center: origin!.center,
+                          width: 32,
+                          height: 32,
+                        ),
+                  avatarTarget,
+                  progress,
+                )!;
+                return Stack(
+                  children: [
+                    widget.child,
+                    if (enabled)
+                      Positioned(
+                        left: attached ? 0 : 12,
+                        right: attached ? 0 : 12,
+                        top: safeTop,
+                        child: Offstage(
+                          child:
+                              NotificationListener<
+                                SizeChangedLayoutNotification
+                              >(
+                                onNotification: (_) {
+                                  measure();
+                                  return false;
+                                },
+                                child: SizeChangedLayoutNotifier(
+                                  child: KeyedSubtree(
+                                    key: measureKey,
+                                    child: card(),
+                                  ),
+                                ),
+                              ),
+                        ),
+                      ),
+                    if (enabled && progress > 0 && origin != null) ...[
+                      Positioned.fill(
+                        bottom: bottom ? height - bottomEdge : 0,
+                        child: Semantics(
+                          label: 'Close menu',
+                          button: true,
+                          child: GestureDetector(
+                            behavior: HitTestBehavior.opaque,
+                            onTap: close,
+                            child: const ColoredBox(color: Colors.transparent),
+                          ),
+                        ),
+                      ),
+                      Positioned.fromRect(
+                        rect: rect,
+                        child: _AvatarSurface(
+                          radius: radius,
+                          connected: attached,
+                          child: ClipRRect(
+                            borderRadius: radius,
+                            child: OverflowBox(
+                              alignment: bottom
+                                  ? Alignment.bottomRight
+                                  : Alignment.topRight,
+                              minWidth: target.width,
+                              maxWidth: target.width,
+                              minHeight: target.height,
+                              maxHeight: target.height,
+                              child: IgnorePointer(
+                                ignoring: progress < .95,
+                                child: Opacity(
+                                  opacity: ((progress - .3) / .7).clamp(
+                                    0.0,
+                                    1.0,
+                                  ),
+                                  child: card(),
+                                ),
+                              ),
+                            ),
+                          ),
+                        ),
+                      ),
+                      if (!attached)
+                        Positioned.fromRect(
+                          rect: avatar,
+                          child: Semantics(
+                            label: 'Close menu',
+                            button: true,
+                            child: GestureDetector(
+                              onTap: close,
+                              child: NooAvatar(
+                                initials: accountInitial(session.username),
+                                current: true,
+                                size: 32,
+                              ),
+                            ),
+                          ),
+                        ),
+                    ],
+                  ],
+                );
+              },
+            ),
+          );
+        },
+      ),
+    );
+  }
+}
+
 class _OtherAccountRow extends StatelessWidget {
   final String name;
   final String host;
@@ -333,7 +715,7 @@ class _OtherAccountRow extends StatelessWidget {
               ),
             ),
             const SizedBox(width: 12),
-            NooAvatar(initials: accountInitial(name), current: false, size: 40),
+            NooAvatar(initials: accountInitial(name), current: false, size: 32),
           ],
         ),
       ),

lib/widgets/bottom_nav_bar.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:lucide_icons_flutter/lucide_icons.dart';
 import '../models/app_tab.dart';
 import 'noo/nav/noo_bottom_bar.dart';
+import 'avatar_menu.dart';
 
 /// Adapts the app's [AppTab] model onto [NooBottomBar]'s generic
 /// [NooNavDestination] list, so `MainShellView` only deals in tabs and
@@ -23,6 +24,7 @@ class BottomNavBar extends StatelessWidget {
   final int selectedIndex;
   final ValueChanged<int> onDestinationSelected;
   final VoidCallback? onSearchTap;
+  final bool avatarInBottomBar;
 
   const BottomNavBar({
     super.key,
@@ -35,6 +37,7 @@ class BottomNavBar extends StatelessWidget {
     required this.selectedIndex,
     required this.onDestinationSelected,
     this.onSearchTap,
+    this.avatarInBottomBar = false,
   });
 
   @override
@@ -50,11 +53,27 @@ class BottomNavBar extends StatelessWidget {
           NooNavDestination(icon: tab.icon, label: tab.label),
       ],
       selectedIndex: selectedIndex,
-      onSelected: onDestinationSelected,
+      onSelected: (index) {
+        AvatarNavigationScope.maybeOf(context)?.close();
+        onDestinationSelected(index);
+      },
       searchDestination: onSearchTap == null
           ? null
           : const NooNavDestination(icon: LucideIcons.search, label: 'Search'),
-      onSearchTap: onSearchTap,
+      onSearchTap: onSearchTap == null
+          ? null
+          : () {
+              AvatarNavigationScope.maybeOf(context)?.close();
+              onSearchTap!();
+            },
+      avatarSatellite: avatarInBottomBar
+          ? AvatarNavigationSatellite(
+              size: NooBottomBar.rowHeight(style, barStyle),
+            )
+          : null,
+      avatarMenuProgress: avatarInBottomBar
+          ? AvatarNavigationScope.maybeOf(context)?.progress ?? 0
+          : 0,
     );
   }
 }

lib/widgets/frosted_glass_container.dart

@@ -1,18 +1,11 @@
 import 'dart:ui';
 import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import '../providers/settings_controller.dart';
 import '../theme/design_tokens.dart';
 
-/// The blurred/translucent chrome for the media viewer's overlay bars
-/// (`file_viewer_screen.dart`'s top bar, `MediaActionBar`, the video
-/// transport row) - the one deliberate exception to the design system's
-/// flat, no-shadow product UI (DESIGN_SYSTEM.md 1.4), since this chrome
-/// floats over photo/video content rather than over the app's own
-/// surfaces. No shadow, no outline: [color] defaults to the app's own
-/// `surface` token (so this panel reads as light or dark to match the
-/// active theme, like the rest of the media viewer, instead of a fixed
-/// dark tone regardless of theme) at a higher-than-usual [opacity], since
-/// a light tint needs denser coverage than a near-black one did to stay
-/// legible over arbitrary photo/video brightness underneath.
+/// Media viewer chrome that shares the navigation frost preference.
+/// Turning frosting off produces an opaque themed surface without blur.
 class FrostedGlassContainer extends StatelessWidget {
   final Widget child;
   final double borderRadius;
@@ -20,14 +13,12 @@ class FrostedGlassContainer extends StatelessWidget {
   /// Overrides [borderRadius] for non-uniform corners (e.g. top-only).
   final BorderRadius? radius;
 
-  /// Blur sigma for the backdrop filter. Defaults to a fixed value; pass an
-  /// explicit value (e.g. from user settings) to make it adjustable.
-  final double blurSigma;
+  /// Blur sigma for the backdrop filter. Defaults to the shared frost setting.
+  final double? blurSigma;
 
-  /// Opacity (0-1) of the tonal fill behind the blur. Defaults to a fixed
-  /// value; pass an explicit value (e.g. from user settings) to make it
-  /// adjustable.
-  final double opacity;
+  /// Opacity (0-1) of the tonal fill behind the blur. Defaults to the shared frost setting.
+  final double? opacity;
+  final bool? frosted;
 
   /// The tint under the blur. Defaults to [NooColors.surface] (resolved at
   /// build time, so it always matches the active theme) - pass an explicit
@@ -39,8 +30,9 @@ class FrostedGlassContainer extends StatelessWidget {
     required this.child,
     this.borderRadius = 0,
     this.radius,
-    this.blurSigma = 20,
-    this.opacity = 0.8,
+    this.blurSigma,
+    this.opacity,
+    this.frosted,
     this.color,
   });
 
@@ -48,18 +40,28 @@ class FrostedGlassContainer extends StatelessWidget {
   Widget build(BuildContext context) {
     final shape = radius ?? BorderRadius.circular(borderRadius);
     final tint = color ?? context.nooColors.surface;
+    final settings = context.watch<SettingsController?>();
+    final enabled = frosted ?? settings?.bottomBarFrosted ?? false;
+    final sigma = blurSigma ?? settings?.bottomBarFrostedBlur ?? 20;
+    final fill = Container(
+      decoration: BoxDecoration(
+        color: enabled
+            ? tint.withValues(
+                alpha: opacity ?? settings?.bottomBarFrostedOpacity ?? 0.72,
+              )
+            : tint,
+        borderRadius: shape,
+      ),
+      child: child,
+    );
     return ClipRRect(
       borderRadius: shape,
-      child: BackdropFilter(
-        filter: ImageFilter.blur(sigmaX: blurSigma, sigmaY: blurSigma),
-        child: Container(
-          decoration: BoxDecoration(
-            color: tint.withValues(alpha: opacity),
-            borderRadius: shape,
-          ),
-          child: child,
-        ),
-      ),
+      child: enabled
+          ? BackdropFilter(
+              filter: ImageFilter.blur(sigmaX: sigma, sigmaY: sigma),
+              child: fill,
+            )
+          : fill,
     );
   }
 }

lib/widgets/noo/core/noo_button.dart

@@ -50,6 +50,9 @@ class NooButton extends StatefulWidget {
   /// are responsible for a tooltip/semantic label, since there's no text.
   final bool iconOnly;
 
+  /// Continuous icon-only to labelled expansion for animated shell actions.
+  final double? expansion;
+
   const NooButton({
     super.key,
     this.variant = NooButtonVariant.primary,
@@ -60,6 +63,7 @@ class NooButton extends StatefulWidget {
     this.disabled = false,
     this.onTap,
     this.iconOnly = false,
+    this.expansion,
   });
 
   @override
@@ -108,11 +112,22 @@ class _NooButtonState extends State<NooButton> {
       mainAxisSize: MainAxisSize.min,
       children: [
         if (widget.icon != null) Icon(widget.icon, size: s.icon, color: fg),
-        if (widget.icon != null && widget.child != null) SizedBox(width: s.gap),
-        if (widget.child != null)
-          DefaultTextStyle(
-            style: NooText.buttonSm.copyWith(fontSize: s.font, color: fg),
-            child: widget.child!,
+        if (widget.icon != null && widget.child != null)
+          SizedBox(width: s.gap * (widget.expansion ?? 1)),
+        if (widget.child != null && widget.expansion != 0)
+          ClipRect(
+            child: Align(
+              alignment: Alignment.centerLeft,
+              widthFactor: widget.expansion ?? 1,
+              heightFactor: 1,
+              child: Opacity(
+                opacity: widget.expansion ?? 1,
+                child: DefaultTextStyle(
+                  style: NooText.buttonSm.copyWith(fontSize: s.font, color: fg),
+                  child: widget.child!,
+                ),
+              ),
+            ),
           ),
       ],
     );
@@ -135,7 +150,17 @@ class _NooButtonState extends State<NooButton> {
             width: widget.iconOnly
                 ? s.height
                 : (widget.fullWidth ? double.infinity : null),
-            padding: _isTextVariant || widget.iconOnly
+            padding: widget.expansion != null
+                ? EdgeInsets.only(
+                    left:
+                        (s.height - s.icon) / 2 +
+                        (s.px - 4 - (s.height - s.icon) / 2) *
+                            widget.expansion!,
+                    right:
+                        (s.height - s.icon) / 2 +
+                        (s.px - (s.height - s.icon) / 2) * widget.expansion!,
+                  )
+                : _isTextVariant || widget.iconOnly
                 ? EdgeInsets.zero
                 : EdgeInsets.only(
                     left: hasLeadingIcon ? s.px - 4 : s.px,

lib/widgets/noo/lists/noo_selection_bar.dart

@@ -23,7 +23,8 @@ const int _kDesktopInlineActions = 4;
 /// Replaces the bare row of Material `IconButton`s each screen used to
 /// build ad hoc.
 ///
-/// A `surface` card (radius 20) - selection reads as a distinct mode, not
+/// A floating `surface` card (radius 20), with the bottom bar's border
+/// and shadow - selection reads as a distinct mode, not
 /// just a row of buttons floating on `bg` - with a close circle, the
 /// count, and the bulk actions. This sits in the *content* pane's own
 /// pinned header slot on every platform (the shell's desktop toolbar,
@@ -87,6 +88,8 @@ class NooSelectionBar extends StatelessWidget {
         decoration: BoxDecoration(
           color: colors.surface,
           borderRadius: BorderRadius.circular(NooRadii.card),
+          border: Border.all(color: colors.line),
+          boxShadow: const [nooDialogShadow],
         ),
         child: Row(
           children: [

lib/widgets/noo/lists/noo_settings_row.dart

@@ -10,14 +10,17 @@ class NooSettingsRow extends StatelessWidget {
   final IconData? icon;
   final Widget label;
   final Widget? subtitle;
+
   /// Renders as `value` text + a trailing chevron - mutually exclusive with
   /// [trailing] (a `NooToggle`, button, badge, etc.).
   final String? value;
   final Widget? trailing;
   final bool danger;
+
   /// Accent-text action row, e.g. "Add account".
   final bool accent;
   final VoidCallback? onTap;
+  final Color? backgroundColor;
 
   const NooSettingsRow({
     super.key,
@@ -29,12 +32,15 @@ class NooSettingsRow extends StatelessWidget {
     this.danger = false,
     this.accent = false,
     this.onTap,
+    this.backgroundColor,
   });
 
   @override
   Widget build(BuildContext context) {
     final colors = context.nooColors;
-    final color = danger ? colors.danger : (accent ? colors.accentText : colors.fg1);
+    final color = danger
+        ? colors.danger
+        : (accent ? colors.accentText : colors.fg1);
     final minHeight = subtitle != null ? 60.0 : 52.0;
 
     Widget? trail = trailing;
@@ -44,7 +50,11 @@ class NooSettingsRow extends StatelessWidget {
         children: [
           Text(
             value!,
-            style: NooText.body.copyWith(fontSize: 15, height: 1, color: colors.fg3),
+            style: NooText.body.copyWith(
+              fontSize: 15,
+              height: 1,
+              color: colors.fg3,
+            ),
           ),
           const SizedBox(width: 4),
           Icon(LucideIcons.chevronRight, size: 18, color: colors.fg3),
@@ -53,7 +63,7 @@ class NooSettingsRow extends StatelessWidget {
     }
 
     return Material(
-      color: colors.surface,
+      color: backgroundColor ?? colors.surface,
       child: InkWell(
         onTap: onTap,
         child: ConstrainedBox(
@@ -66,7 +76,11 @@ class NooSettingsRow extends StatelessWidget {
             child: Row(
               children: [
                 if (icon != null) ...[
-                  Icon(icon, size: 20, color: danger || accent ? color : colors.fg2),
+                  Icon(
+                    icon,
+                    size: 20,
+                    color: danger || accent ? color : colors.fg2,
+                  ),
                   const SizedBox(width: 14),
                 ],
                 Expanded(

lib/widgets/noo/nav/noo_bottom_bar.dart

@@ -19,8 +19,8 @@ const double _kAndroidPillHeight = 32;
 /// what order, is the caller's business; this only draws [destinations].
 ///
 /// - [NooNavStyle.ios]: surface fill, 1px top `line`, a 50px row (8px top
-///   padding) of icon 24 over a 10px label. Active: accent-text, 600.
-///   Idle: fg-3, 500. No ripple.
+///   padding) of icon 24 over a 10px selected label. Active: accent-text, 600.
+///   Idle: centered fg-3 icon, no label. No ripple.
 /// - [NooNavStyle.android]: surface fill, 80px. Every tab shows its 24px
 ///   icon over a 12px label (label only visible - not removed from layout,
 ///   so the row never resizes - once selected). The active icon sits in a
@@ -78,6 +78,11 @@ class NooBottomBar extends StatelessWidget {
   final NooNavDestination? searchDestination;
   final VoidCallback? onSearchTap;
 
+  /// Bottom-avatar navigation occupies this slot while closed. Search moves
+  /// from the row into the slot as the avatar expands into its popup.
+  final Widget? avatarSatellite;
+  final double avatarMenuProgress;
+
   const NooBottomBar({
     super.key,
     required this.style,
@@ -90,6 +95,8 @@ class NooBottomBar extends StatelessWidget {
     required this.onSelected,
     this.searchDestination,
     this.onSearchTap,
+    this.avatarSatellite,
+    this.avatarMenuProgress = 0,
   });
 
   /// The row height [build] draws for [style]/[barStyle] - exposed so a
@@ -126,7 +133,12 @@ class NooBottomBar extends StatelessWidget {
     // Attached folds Search into the row itself (last item); floating
     // gives it a separate satellite circle instead (built below), so the
     // row builders only ever see it as a trailing item in the former case.
-    final rowSearch = hasSearch && !floating ? searchDestination : null;
+    final rowSearch =
+        hasSearch &&
+            (!floating || avatarSatellite != null) &&
+            (avatarSatellite == null || !floating || avatarMenuProgress < 1)
+        ? searchDestination
+        : null;
 
     final row = ios
         ? _buildIosRow(trailingSearch: rowSearch)
@@ -162,7 +174,9 @@ class NooBottomBar extends StatelessWidget {
             16,
             NooBottomBar.floatingBottomMargin,
           ),
-          child: hasSearch
+          child: avatarSatellite != null
+              ? _withAvatar(pill, barHeight, hasSearch)
+              : hasSearch
               // A fixed-height SizedBox, not just a Row with
               // crossAxisAlignment.stretch - the bottomNavigationBar slot
               // gives this widget a *loose* (unbounded-max) height
@@ -202,37 +216,126 @@ class NooBottomBar extends StatelessWidget {
       ),
       child: SafeArea(
         top: false,
-        child: SizedBox(height: barHeight, child: row),
+        child: SizedBox(
+          height: barHeight,
+          child: avatarSatellite == null
+              ? row
+              : Row(
+                  children: [
+                    Expanded(child: row),
+                    SizedBox(
+                      width: barHeight,
+                      height: barHeight,
+                      child: avatarSatellite,
+                    ),
+                    const SizedBox(width: 8),
+                  ],
+                ),
+        ),
       ),
     );
     return frosted ? _blurred(bar, BorderRadius.zero, frostedBlur) : bar;
   }
 
+  Widget _withAvatar(Widget rail, double height, bool hasSearch) {
+    final satelliteWidth = hasSearch
+        ? height
+        : height * (1 - avatarMenuProgress);
+    return SizedBox(
+      height: height,
+      child: Row(
+        children: [
+          Expanded(child: rail),
+          SizedBox(width: 8 * (hasSearch ? 1 : 1 - avatarMenuProgress)),
+          SizedBox(
+            width: satelliteWidth,
+            height: height,
+            child: ClipRect(
+              child: OverflowBox(
+                alignment: Alignment.centerRight,
+                minWidth: height,
+                maxWidth: height,
+                child: Stack(
+                  children: [
+                    avatarSatellite!,
+                    if (hasSearch && avatarMenuProgress > 0)
+                      Opacity(
+                        opacity: avatarMenuProgress,
+                        child: _SearchSatellite(
+                          destination: searchDestination!,
+                          onTap: onSearchTap!,
+                          size: height,
+                          frosted: frosted,
+                          frostedBlur: frostedBlur,
+                          frostedOpacity: frostedOpacity,
+                        ),
+                      ),
+                  ],
+                ),
+              ),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
   Color _fill(NooColors colors) => frosted
       ? colors.surface.withValues(alpha: frostedOpacity)
       : colors.surface;
 
+  double get _rowSearchFraction =>
+      avatarSatellite == null || barStyle == NooBottomBarStyle.attached
+      ? 1
+      : 1 - avatarMenuProgress;
+
+  Widget _searchRowItem(Widget child, double width) => SizedBox(
+    width: width * _rowSearchFraction,
+    child: IgnorePointer(
+      ignoring: _rowSearchFraction < .95,
+      child: ClipRect(
+        child: OverflowBox(
+          minWidth: width,
+          maxWidth: width,
+          child: Opacity(opacity: _rowSearchFraction, child: child),
+        ),
+      ),
+    ),
+  );
+
   Widget _buildIosRow({NooNavDestination? trailingSearch}) {
-    return Row(
-      crossAxisAlignment: CrossAxisAlignment.stretch,
-      children: [
-        for (var i = 0; i < destinations.length; i++)
-          Expanded(
-            child: _IosItem(
-              destination: destinations[i],
-              selected: i == selectedIndex,
-              onTap: () => onSelected(i),
-            ),
-          ),
-        if (trailingSearch != null)
-          Expanded(
-            child: _IosItem(
-              destination: trailingSearch,
-              selected: false,
-              onTap: onSearchTap!,
-            ),
-          ),
-      ],
+    return LayoutBuilder(
+      builder: (context, constraints) {
+        final width =
+            constraints.maxWidth /
+            (destinations.length +
+                (trailingSearch == null ? 0 : _rowSearchFraction));
+        return Row(
+          crossAxisAlignment: CrossAxisAlignment.stretch,
+          children: [
+            for (var i = 0; i < destinations.length; i++)
+              SizedBox(
+                width: width,
+                child: _IosItem(
+                  destination: destinations[i],
+                  selected: i == selectedIndex,
+                  selectedLabelOnly: true,
+                  onTap: () => onSelected(i),
+                ),
+              ),
+            if (trailingSearch != null)
+              _searchRowItem(
+                _IosItem(
+                  destination: trailingSearch,
+                  selected: false,
+                  selectedLabelOnly: true,
+                  onTap: onSearchTap!,
+                ),
+                width,
+              ),
+          ],
+        );
+      },
     );
   }
 
@@ -242,7 +345,8 @@ class NooBottomBar extends StatelessWidget {
     NooNavDestination? trailingSearch,
   }) {
     final pillTop = floating ? _kFloatingPillTop : _kAttachedPillTop;
-    final itemCount = destinations.length + (trailingSearch != null ? 1 : 0);
+    final itemCount =
+        destinations.length + (trailingSearch != null ? _rowSearchFraction : 0);
     return LayoutBuilder(
       builder: (context, constraints) {
         final itemWidth = constraints.maxWidth / itemCount;
@@ -268,7 +372,8 @@ class NooBottomBar extends StatelessWidget {
               crossAxisAlignment: CrossAxisAlignment.stretch,
               children: [
                 for (var i = 0; i < destinations.length; i++)
-                  Expanded(
+                  SizedBox(
+                    width: itemWidth,
                     child: _AndroidItem(
                       destination: destinations[i],
                       selected: i == selectedIndex,
@@ -277,13 +382,14 @@ class NooBottomBar extends StatelessWidget {
                     ),
                   ),
                 if (trailingSearch != null)
-                  Expanded(
-                    child: _AndroidItem(
+                  _searchRowItem(
+                    _AndroidItem(
                       destination: trailingSearch,
                       selected: false,
                       floating: floating,
                       onTap: onSearchTap!,
                     ),
+                    itemWidth,
                   ),
               ],
             ),
@@ -362,11 +468,13 @@ class _SearchSatellite extends StatelessWidget {
 class _IosItem extends StatelessWidget {
   final NooNavDestination destination;
   final bool selected;
+  final bool selectedLabelOnly;
   final VoidCallback onTap;
 
   const _IosItem({
     required this.destination,
     required this.selected,
+    this.selectedLabelOnly = false,
     required this.onTap,
   });
 
@@ -377,30 +485,35 @@ class _IosItem extends StatelessWidget {
     return Semantics(
       button: true,
       selected: selected,
+      label: selectedLabelOnly && !selected ? destination.label : null,
       child: GestureDetector(
         behavior: HitTestBehavior.opaque,
         onTap: onTap,
-        child: Padding(
-          padding: const EdgeInsets.only(top: 8),
-          child: Column(
-            mainAxisAlignment: MainAxisAlignment.start,
-            children: [
-              Icon(destination.icon, size: 24, color: fg),
-              const SizedBox(height: 4),
-              Text(
-                destination.label,
-                maxLines: 1,
-                overflow: TextOverflow.ellipsis,
-                style: NooText.navLabel.copyWith(
-                  fontSize: 10,
-                  height: 1,
-                  fontWeight: selected ? FontWeight.w600 : FontWeight.w500,
-                  color: fg,
+        child: selectedLabelOnly && !selected
+            ? Center(child: Icon(destination.icon, size: 24, color: fg))
+            : Padding(
+                padding: const EdgeInsets.only(top: 8),
+                child: Column(
+                  mainAxisAlignment: MainAxisAlignment.start,
+                  children: [
+                    Icon(destination.icon, size: 24, color: fg),
+                    const SizedBox(height: 4),
+                    Text(
+                      destination.label,
+                      maxLines: 1,
+                      overflow: TextOverflow.ellipsis,
+                      style: NooText.navLabel.copyWith(
+                        fontSize: 10,
+                        height: 1,
+                        fontWeight: selected
+                            ? FontWeight.w600
+                            : FontWeight.w500,
+                        color: fg,
+                      ),
+                    ),
+                  ],
                 ),
               ),
-            ],
-          ),
-        ),
       ),
     );
   }

lib/widgets/noo/nav/noo_nav_style.dart

@@ -37,8 +37,8 @@ enum NooBottomBarStyle { attached, floating }
 /// as [NooBottomBarStyle]. [drawer] is the original pattern: a `menu`
 /// icon, top-left of the top bar, opens a left-edge `Drawer`. [avatarMenu]
 /// drops that icon entirely and repurposes the avatar button - already
-/// sitting top-right, already a tap target every user already knows - as
-/// the one entry point instead, opening a dropdown anchored below it (see
+/// available at the top or bottom by user preference - as the one entry
+/// point instead, expanding into an anchored navigation card (see
 /// `showAvatarMenu` in `widgets/avatar_menu.dart`) rather than a drawer
 /// sliding from the opposite edge. Applies on both platforms, since
 /// [NooTopBar]'s `onMenu`/avatar wiring is shared chrome, not

lib/widgets/noo/nav/noo_top_bar.dart

@@ -52,6 +52,7 @@ class NooTopBar extends StatelessWidget implements PreferredSizeWidget {
   /// Icons inherit the bar's icon color (accent-text on iOS, fg-1 on
   /// Android) through [IconTheme].
   final List<Widget> actions;
+  final bool iosActionsInTitleRow;
 
   /// iOS only: the search field shown below the large title.
   final Widget? search;
@@ -76,6 +77,7 @@ class NooTopBar extends StatelessWidget implements PreferredSizeWidget {
     this.leading,
     this.onMenu,
     this.actions = const [],
+    this.iosActionsInTitleRow = false,
     this.search,
     this.androidTitleTrailing,
     this.backgroundColor,
@@ -86,6 +88,11 @@ class NooTopBar extends StatelessWidget implements PreferredSizeWidget {
   @override
   Size get preferredSize {
     if (!_ios) return const Size.fromHeight(_androidRow);
+    if (iosActionsInTitleRow) {
+      return Size.fromHeight(
+        64 + (search != null ? _iosSearch + _iosSearchBottom : 0),
+      );
+    }
     return Size.fromHeight(
       _iosRow +
           _iosTitleTop +
@@ -127,6 +134,50 @@ class NooTopBar extends StatelessWidget implements PreferredSizeWidget {
   }
 
   Widget _buildIos(NooColors colors, Widget? lead) {
+    if (iosActionsInTitleRow) {
+      return Column(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          SizedBox(
+            height: 64,
+            child: Padding(
+              padding: EdgeInsetsDirectional.only(
+                start: lead == null ? 16 : 6,
+                end: 6,
+              ),
+              child: Row(
+                spacing: 4,
+                children: [
+                  ?lead,
+                  Expanded(
+                    child: Text(
+                      title,
+                      maxLines: 1,
+                      overflow: TextOverflow.ellipsis,
+                      style: NooText.largeTitle.copyWith(
+                        leadingDistribution: TextLeadingDistribution.even,
+                        color: colors.fg1,
+                      ),
+                    ),
+                  ),
+                  ...actions,
+                ],
+              ),
+            ),
+          ),
+          if (search != null)
+            Padding(
+              padding: const EdgeInsets.fromLTRB(
+                NooSpace.md,
+                0,
+                NooSpace.md,
+                _iosSearchBottom,
+              ),
+              child: SizedBox(height: _iosSearch, child: search),
+            ),
+        ],
+      );
+    }
     return Column(
       mainAxisSize: MainAxisSize.min,
       crossAxisAlignment: CrossAxisAlignment.stretch,

lib/widgets/selection_bar_overlay.dart

@@ -0,0 +1,30 @@
+import 'package:flutter/material.dart';
+
+/// Pins selection actions above the shell navigation. Scaffold supplies its
+/// navigation footprint through MediaQuery padding when the body extends
+/// behind navigation; otherwise the body already ends above it.
+class SelectionBarOverlay extends StatelessWidget {
+  static const clearance = 64.0;
+
+  final Widget child;
+  final Widget? bar;
+
+  const SelectionBarOverlay({super.key, required this.child, this.bar});
+
+  @override
+  Widget build(BuildContext context) {
+    if (bar == null) return child;
+    return Stack(
+      fit: StackFit.expand,
+      children: [
+        child,
+        Positioned(
+          left: 0,
+          right: 0,
+          bottom: MediaQuery.paddingOf(context).bottom + 8,
+          child: SizedBox(height: 56, child: bar),
+        ),
+      ],
+    );
+  }
+}

lib/widgets/settings/settings_action_bar.dart

@@ -4,8 +4,10 @@ import '../../models/selection_action.dart';
 import '../../providers/settings_controller.dart';
 import '../../theme/design_tokens.dart';
 import '../noo/lists/noo_tab_order_row.dart';
+import '../noo/lists/noo_settings_row.dart';
+import '../noo/lists/noo_grouped_list.dart';
+import '../noo/core/noo_segmented_control.dart';
 import '../noo/noo_layout.dart';
-import 'settings_section.dart';
 
 /// Settings section: the priority order bulk actions (favorite, share,
 /// download, ...) show in on the Files/Photos/Favorites multi-select
@@ -13,7 +15,7 @@ import 'settings_section.dart';
 /// which ones land in `NooSelectionBar`'s fixed inline slots (3 mobile / 4
 /// desktop, see its own doc comment) vs. behind its trailing "More" -
 /// there's no pin/hide concept here the way Tabs has, so this is just a
-/// reorder list, not a whole section of its own option rows.
+/// position choice followed by a reorder list.
 class SettingsActionBarSection extends StatelessWidget {
   const SettingsActionBarSection({super.key});
 
@@ -33,18 +35,30 @@ class SettingsActionBarSection extends StatelessWidget {
     final desktop = NooLayout.isDesktop(context);
 
     final orderList = _ActionOrderList(
+      rounded: desktop,
       order: settings.selectionActionOrder,
       onReorder: (oldIndex, newIndex) =>
           _handleReorder(settings, oldIndex, newIndex),
     );
 
+    final positionRow = NooSettingsRow(
+      label: const Text('Position'),
+      trailing: NooSegmentedControl<SelectionBarPosition>(
+        onSurface: true,
+        value: settings.selectionBarPosition,
+        onChanged: settings.setSelectionBarPosition,
+        options: const [
+          NooSegmentOption(value: SelectionBarPosition.top, label: 'Top'),
+          NooSegmentOption(value: SelectionBarPosition.bottom, label: 'Bottom'),
+        ],
+      ),
+    );
     final colors = context.nooColors;
 
     if (!desktop) {
-      return SettingsSection(
-        title: 'Action bar',
-        subtitle: _subtitle,
-        children: [orderList],
+      return NooGroupedList(
+        footer: const Text(_subtitle),
+        children: [positionRow, orderList],
       );
     }
 
@@ -65,6 +79,8 @@ class SettingsActionBarSection extends StatelessWidget {
           const SizedBox(height: 4),
           Text(_subtitle, style: NooText.meta.copyWith(color: colors.fg3)),
           const SizedBox(height: NooSpace.md),
+          positionRow,
+          const SizedBox(height: NooSpace.md),
           orderList,
         ],
       ),
@@ -79,8 +95,13 @@ class SettingsActionBarSection extends StatelessWidget {
 class _ActionOrderList extends StatelessWidget {
   final List<SelectionActionKind> order;
   final void Function(int oldIndex, int newIndex) onReorder;
+  final bool rounded;
 
-  const _ActionOrderList({required this.order, required this.onReorder});
+  const _ActionOrderList({
+    required this.order,
+    required this.onReorder,
+    required this.rounded,
+  });
 
   @override
   Widget build(BuildContext context) {
@@ -105,12 +126,14 @@ class _ActionOrderList extends StatelessWidget {
         );
       },
     );
+    final rows = DecoratedBox(
+      decoration: BoxDecoration(color: colors.line),
+      child: list,
+    );
+    if (!rounded) return rows;
     return ClipRRect(
       borderRadius: BorderRadius.circular(NooRadii.card),
-      child: DecoratedBox(
-        decoration: BoxDecoration(color: colors.line),
-        child: list,
-      ),
+      child: rows,
     );
   }
 }

lib/widgets/settings/settings_appearance.dart

@@ -56,9 +56,9 @@ class SettingsAppearanceSection extends StatelessWidget {
             _BottomBarStyleRow(settings: settings),
             NooSettingsRow(
               icon: LucideIcons.glassWater,
-              label: const Text('Frosted glass bottom bar'),
+              label: const Text('Frosted glass'),
               subtitle: const Text(
-                'A translucent, blurred bottom bar - content scrolls behind it',
+                'Blurred bottom navigation, avatar menus and media viewer panels',
               ),
               trailing: NooToggle(
                 checked: settings.bottomBarFrosted,
@@ -67,6 +67,23 @@ class SettingsAppearanceSection extends StatelessWidget {
             ),
             if (settings.bottomBarFrosted) _FrostedGlassRow(settings: settings),
             _NavMenuStyleRow(settings: settings),
+            if (settings.navMenuStyle == NooNavMenuStyle.avatarMenu)
+              NooSettingsRow(
+                icon: LucideIcons.userRound,
+                label: const Text('Avatar position'),
+                trailing: NooSegmentedControl<AvatarPosition>(
+                  onSurface: true,
+                  value: settings.avatarPosition,
+                  onChanged: settings.setAvatarPosition,
+                  options: const [
+                    NooSegmentOption(value: AvatarPosition.top, label: 'Top'),
+                    NooSegmentOption(
+                      value: AvatarPosition.bottom,
+                      label: 'Bottom',
+                    ),
+                  ],
+                ),
+              ),
             NooSettingsRow(
               icon: LucideIcons.search,
               label: const Text('Search in bottom bar'),
@@ -96,14 +113,19 @@ class SettingsAppearanceSection extends StatelessWidget {
               icon: LucideIcons.palette,
               label: const Text('Accent color'),
               subtitle: Text(
-                settings.useDynamicColor
+                settings.useDynamicColor &&
+                        Theme.of(context).platform != TargetPlatform.iOS
                     ? 'Matching your wallpaper'
                     : settings.seedColor == AppTheme.defaultAccent
                     ? 'Default'
                     : 'Custom color',
               ),
               trailing: _AccentSwatchDot(
-                color: settings.useDynamicColor ? null : settings.seedColor,
+                color:
+                    settings.useDynamicColor &&
+                        Theme.of(context).platform != TargetPlatform.iOS
+                    ? null
+                    : settings.seedColor,
               ),
               onTap: () => _openAccentPicker(context, settings),
             ),
@@ -116,15 +138,16 @@ class SettingsAppearanceSection extends StatelessWidget {
                 onChanged: settings.setAmoledDark,
               ),
             ),
-            NooSettingsRow(
-              icon: LucideIcons.waves,
-              label: const Text('Seek bar style'),
-              subtitle: const Text(
-                'The progress bar style used when playing videos',
+            if (Theme.of(context).platform != TargetPlatform.iOS)
+              NooSettingsRow(
+                icon: LucideIcons.waves,
+                label: const Text('Seek bar style'),
+                subtitle: const Text(
+                  'The progress bar style used when playing videos',
+                ),
+                value: _seekBarStyleLabel(settings.mediaProgressBarStyle),
+                onTap: () => _openSeekBarPicker(context, settings),
               ),
-              value: _seekBarStyleLabel(settings.mediaProgressBarStyle),
-              onTap: () => _openSeekBarPicker(context, settings),
-            ),
           ],
         ),
       ],
@@ -168,6 +191,7 @@ class _ThemeRow extends StatelessWidget {
             const SizedBox(height: 12),
             NooSegmentedControl<ThemeMode>(
               fill: true,
+              onSurface: true,
               value: settings.themeMode,
               onChanged: settings.setThemeMode,
               options: const [
@@ -231,6 +255,7 @@ class _BottomBarStyleRow extends StatelessWidget {
             const SizedBox(height: 12),
             NooSegmentedControl<NooBottomBarStyle>(
               fill: true,
+              onSurface: true,
               value: settings.bottomBarStyle,
               onChanged: settings.setBottomBarStyle,
               options: const [
@@ -287,6 +312,7 @@ class _FrostedGlassRow extends StatelessWidget {
             const SizedBox(height: 12),
             NooSegmentedControl<FrostedGlassPreset?>(
               fill: true,
+              onSurface: true,
               // No segment selected once the sliders no longer match a preset.
               value: settings.frostedPreset,
               onChanged: (preset) {
@@ -402,6 +428,7 @@ class _NavMenuStyleRow extends StatelessWidget {
             const SizedBox(height: 12),
             NooSegmentedControl<NooNavMenuStyle>(
               fill: true,
+              onSurface: true,
               value: settings.navMenuStyle,
               onChanged: settings.setNavMenuStyle,
               options: const [
@@ -455,6 +482,7 @@ class _FabStyleRow extends StatelessWidget {
             const SizedBox(height: 12),
             NooSegmentedControl<FabStyle>(
               fill: true,
+              onSurface: true,
               value: settings.fabStyle,
               onChanged: settings.setFabStyle,
               options: const [
@@ -508,22 +536,26 @@ class _AccentSwatchDot extends StatelessWidget {
 }
 
 void _openAccentPicker(BuildContext context, SettingsController settings) {
+  final useDynamicColor =
+      settings.useDynamicColor &&
+      Theme.of(context).platform != TargetPlatform.iOS;
   Widget grid(NooColors colors) => Wrap(
     spacing: 14,
     runSpacing: 14,
     children: [
-      _AccentSwatch(
-        isSelected: settings.useDynamicColor,
-        onTap: () {
-          settings.setUseDynamicColor(true);
-          Navigator.pop(context);
-        },
-        background: colors.surface3,
-        child: Icon(LucideIcons.wallpaper, color: colors.fg2, size: 20),
-      ),
+      if (Theme.of(context).platform != TargetPlatform.iOS)
+        _AccentSwatch(
+          isSelected: settings.useDynamicColor,
+          onTap: () {
+            settings.setUseDynamicColor(true);
+            Navigator.pop(context);
+          },
+          background: colors.surface3,
+          child: Icon(LucideIcons.wallpaper, color: colors.fg2, size: 20),
+        ),
       for (final color in AppTheme.seedColors)
         _AccentSwatch(
-          isSelected: !settings.useDynamicColor && settings.seedColor == color,
+          isSelected: !useDynamicColor && settings.seedColor == color,
           onTap: () {
             settings.setSeedColor(color);
             Navigator.pop(context);

lib/widgets/settings/settings_files_cache.dart

@@ -125,12 +125,16 @@ class _CacheIntervalRow extends StatelessWidget {
                 onChanged: (value) => onChanged(value.round()),
               ),
             ),
-            if (minutes < 15)
+            if (Theme.of(context).platform == TargetPlatform.iOS ||
+                (Theme.of(context).platform == TargetPlatform.android && minutes < 15))
               Padding(
                 padding: const EdgeInsets.only(bottom: 8),
                 child: Text(
-                  'While the app is closed, synced files refresh at most every '
-                  '15 min (an Android limit).',
+                  Theme.of(context).platform == TargetPlatform.iOS
+                      ? 'iOS decides when background sync runs; the refresh '
+                          'interval is a request, not a guaranteed schedule.'
+                      : 'While the app is closed, synced files refresh at most every '
+                          '15 min (an Android limit).',
                   style: NooText.meta.copyWith(color: colors.fg3),
                 ),
               ),

lib/widgets/sticky_header_delegate.dart

@@ -10,8 +10,13 @@ import '../theme/design_tokens.dart';
 class StickyHeaderDelegate extends SliverPersistentHeaderDelegate {
   final double height;
   final Widget child;
+  final bool floating;
 
-  const StickyHeaderDelegate({required this.height, required this.child});
+  const StickyHeaderDelegate({
+    required this.height,
+    required this.child,
+    this.floating = false,
+  });
 
   @override
   double get minExtent => height;
@@ -38,7 +43,7 @@ class StickyHeaderDelegate extends SliverPersistentHeaderDelegate {
     // Colors.transparent` guards against the same M3 elevation-tint
     // behavior even if this ever gets a non-zero elevation.
     return Material(
-      color: context.nooColors.bg,
+      color: floating ? Colors.transparent : context.nooColors.bg,
       surfaceTintColor: Colors.transparent,
       child: child,
     );
@@ -46,6 +51,8 @@ class StickyHeaderDelegate extends SliverPersistentHeaderDelegate {
 
   @override
   bool shouldRebuild(covariant StickyHeaderDelegate oldDelegate) {
-    return oldDelegate.height != height || oldDelegate.child != child;
+    return oldDelegate.height != height ||
+        oldDelegate.child != child ||
+        oldDelegate.floating != floating;
   }
 }

lib/widgets/viewer/media_action_bar.dart

@@ -4,14 +4,8 @@ import '../../theme/design_tokens.dart';
 import '../frosted_glass_container.dart';
 import 'viewer_icon_button.dart';
 
-/// The bottom panel overlaid on the media viewer: an optional transport row
-/// ([transportControls], video only) above the action row
-/// (share/favorite/open/download/delete/details) - one continuous flush,
-/// full-width `FrostedGlassContainer` panel, not two separate floating
-/// pills. Kept on that blurred chrome as a deliberate exception to the
-/// design system's flat product UI (see `file_viewer_screen.dart`'s
-/// build() comment for why), unlike the now-flat bottom nav bar
-/// (`bottom_nav_bar.dart`) this screen sits above.
+/// A full-width media panel containing transport, actions and details.
+/// Its solid/frosted surface follows the shared appearance preference.
 class MediaActionBar extends StatelessWidget {
   final bool isFavorite;
   final bool isBusy;

lib/widgets/viewer/media_video_preview.dart

@@ -1,6 +1,7 @@
 import 'dart:io';
 import 'dart:math' as math;
 import 'package:flutter/material.dart';
+import 'package:flutter/cupertino.dart';
 import 'package:lucide_icons_flutter/lucide_icons.dart';
 import 'package:provider/provider.dart';
 import 'package:video_player/video_player.dart';
@@ -198,12 +199,14 @@ class VideoTransportControls extends StatelessWidget {
               ),
               Padding(
                 padding: const EdgeInsets.fromLTRB(12, 0, 12, 8),
-                child: WavySeekBar(
-                  controller: controller,
-                  playedColor: fg,
-                  trackColor: fg.withValues(alpha: 0.3),
-                  style: progressBarStyle,
-                ),
+                child: Theme.of(context).platform == TargetPlatform.iOS
+                    ? IosSeekBar(controller: controller, color: fg)
+                    : WavySeekBar(
+                        controller: controller,
+                        playedColor: fg,
+                        trackColor: fg.withValues(alpha: 0.3),
+                        style: progressBarStyle,
+                      ),
               ),
             ],
           ),
@@ -213,6 +216,60 @@ class VideoTransportControls extends StatelessWidget {
   }
 }
 
+class IosSeekBar extends StatefulWidget {
+  final VideoPlayerController controller;
+  final Color color;
+  const IosSeekBar({super.key, required this.controller, required this.color});
+
+  @override
+  State<IosSeekBar> createState() => _IosSeekBarState();
+}
+
+class _IosSeekBarState extends State<IosSeekBar> {
+  double? _dragRatio;
+  bool _resumeAfterScrubbing = false;
+
+  @override
+  Widget build(BuildContext context) {
+    final value = widget.controller.value;
+    final durationMs = value.duration.inMilliseconds;
+    final ratio =
+        (_dragRatio ??
+                (durationMs > 0
+                    ? value.position.inMilliseconds / durationMs
+                    : 0.0))
+            .clamp(0.0, 1.0);
+    return SizedBox(
+      width: double.infinity,
+      child: CupertinoSlider(
+        value: ratio,
+        activeColor: widget.color,
+        thumbColor: CupertinoColors.white,
+        onChangeStart: durationMs <= 0
+            ? null
+            : (_) {
+                _resumeAfterScrubbing = value.isPlaying;
+                if (_resumeAfterScrubbing) widget.controller.pause();
+              },
+        onChanged: durationMs <= 0
+            ? null
+            : (ratio) {
+                setState(() => _dragRatio = ratio);
+                widget.controller.seekTo(value.duration * ratio);
+              },
+        onChangeEnd: durationMs <= 0
+            ? null
+            : (ratio) async {
+                await widget.controller.seekTo(value.duration * ratio);
+                if (!mounted) return;
+                setState(() => _dragRatio = null);
+                if (_resumeAfterScrubbing) widget.controller.play();
+              },
+      ),
+    );
+  }
+}
+
 /// A Material You "expressive" wavy seek bar: the played portion of the
 /// track animates as a travelling sine wave while playing and settles flat
 /// when paused, matching the Android 16+ media player style. Drag or tap

test/providers/settings_selection_position_test.dart

@@ -0,0 +1,54 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+import 'package:noo/providers/settings_controller.dart';
+
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  test(
+    'defaults to top and safely handles an unknown saved position',
+    () async {
+      for (final saved in [null, 'unknown']) {
+        SharedPreferences.setMockInitialValues({
+          'ui_selection_bar_position': ?saved,
+        });
+        final settings = SettingsController();
+        await Future<void>.delayed(Duration.zero);
+        expect(settings.selectionBarPosition, SelectionBarPosition.top);
+        settings.dispose();
+      }
+    },
+  );
+
+  test(
+    'bottom position persists and restores across controller creation',
+    () async {
+      SharedPreferences.setMockInitialValues({});
+      final settings = SettingsController();
+      await Future<void>.delayed(Duration.zero);
+      settings.setSelectionBarPosition(SelectionBarPosition.bottom);
+      await Future<void>.delayed(Duration.zero);
+      final restored = SettingsController();
+      await Future<void>.delayed(Duration.zero);
+      expect(restored.selectionBarPosition, SelectionBarPosition.bottom);
+      settings.dispose();
+      restored.dispose();
+    },
+  );
+  test(
+    'avatar position defaults to top and restores a saved bottom choice',
+    () async {
+      SharedPreferences.setMockInitialValues({});
+      final settings = SettingsController();
+      await Future<void>.delayed(Duration.zero);
+      expect(settings.avatarPosition, AvatarPosition.top);
+      settings.setAvatarPosition(AvatarPosition.bottom);
+      await Future<void>.delayed(Duration.zero);
+      final restored = SettingsController();
+      await Future<void>.delayed(Duration.zero);
+      expect(restored.avatarPosition, AvatarPosition.bottom);
+      settings.dispose();
+      restored.dispose();
+    },
+  );
+}

test/widgets/avatar_menu_test.dart

@@ -1,4 +1,5 @@
 import 'dart:convert';
+import 'dart:ui' show ImageFilter;
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
@@ -17,7 +18,10 @@ import 'package:noo/providers/trash_controller.dart';
 import 'package:noo/theme/app_theme.dart';
 import 'package:noo/theme/design_tokens.dart';
 import 'package:noo/widgets/noo/core/noo_avatar.dart';
+import 'package:noo/widgets/noo/core/noo_button.dart';
 import 'package:noo/widgets/app_top_bar.dart';
+import 'package:noo/widgets/avatar_menu.dart';
+import 'package:noo/widgets/bottom_nav_bar.dart';
 import 'package:noo/widgets/noo/nav/noo_top_bar.dart';
 
 /// Covers `SettingsController.navMenuStyle`'s two options as wired through
@@ -86,7 +90,24 @@ void main() {
   Future<void> pumpTopBar(
     WidgetTester tester, {
     required NooNavMenuStyle navMenuStyle,
+    bool withHost = false,
+    AvatarPosition position = AvatarPosition.top,
+    bool search = false,
+    bool reducedMotion = false,
+    NooNavStyle style = NooNavStyle.android,
+    NooBottomBarStyle barStyle = NooBottomBarStyle.floating,
+    AppTab tab = AppTab.files,
+    FabStyle uploadStyle = FabStyle.auto,
+    bool frosted = false,
+    int settleFrames = 30,
   }) async {
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.setString('ui_nav_menu_style', navMenuStyle.name);
+    await prefs.setString('ui_avatar_position', position.name);
+    await prefs.setString('ui_bottom_bar_style', barStyle.name);
+    await prefs.setBool('ui_bottom_bar_frosted', frosted);
+    await prefs.setDouble('ui_bottom_bar_frosted_blur', 19);
+    await prefs.setDouble('ui_bottom_bar_frosted_opacity', 0.45);
     await tester.binding.setSurfaceSize(const Size(400, 800));
     addTearDown(() => tester.binding.setSurfaceSize(null));
 
@@ -110,15 +131,49 @@ void main() {
           ),
         ],
         child: MaterialApp(
-          theme: AppTheme.light(AppTheme.defaultAccent, useDynamicColor: false),
-          home: Scaffold(
-            drawer: const Drawer(child: Text('drawer open')),
-            appBar: AppTopBar(
-              style: NooNavStyle.android,
-              tab: AppTab.files,
-              navMenuStyle: navMenuStyle,
-            ),
-            body: const SizedBox(),
+          theme: AppTheme.light(AppTheme.defaultAccent, useDynamicColor: false)
+              .copyWith(
+                platform: style == NooNavStyle.ios
+                    ? TargetPlatform.iOS
+                    : TargetPlatform.android,
+              ),
+          home: Builder(
+            builder: (context) {
+              final scaffold = Scaffold(
+                drawer: const Drawer(child: Text('drawer open')),
+                appBar: AppTopBar(
+                  style: style,
+                  tab: tab,
+                  uploadButtonStyle: uploadStyle,
+                  navMenuStyle: navMenuStyle,
+                  avatarPosition: position,
+                  searchInBottomBar: search,
+                ),
+                body: const AvatarNavigationBody(
+                  child: SizedBox.expand(key: ValueKey('page content')),
+                ),
+                bottomNavigationBar: withHost
+                    ? BottomNavBar(
+                        style: style,
+                        barStyle: barStyle,
+                        tabs: const [AppTab.files, AppTab.photos],
+                        selectedIndex: 0,
+                        onDestinationSelected: (_) {},
+                        avatarInBottomBar: position == AvatarPosition.bottom,
+                        onSearchTap: search ? () {} : null,
+                      )
+                    : null,
+              );
+              final child = withHost
+                  ? AvatarNavigationHost(child: scaffold)
+                  : scaffold;
+              return MediaQuery(
+                data: MediaQuery.of(
+                  context,
+                ).copyWith(disableAnimations: reducedMotion),
+                child: child,
+              );
+            },
           ),
         ),
       ),
@@ -127,7 +182,7 @@ void main() {
     // Not `pumpAndSettle` - the same reasoning as `account_view_test.dart`:
     // the active account's dependent controllers start periodic
     // timers/futures that would spin it forever.
-    for (var i = 0; i < 30; i++) {
+    for (var i = 0; i < settleFrames; i++) {
       await tester.pump(const Duration(milliseconds: 10));
     }
   }
@@ -224,4 +279,320 @@ void main() {
     final screenWidth = tester.getSize(find.byType(MaterialApp)).width;
     expect(tester.getSize(row).width, screenWidth - 2 * NooSpace.sm - 4);
   });
+  testWidgets(
+    'top avatar expands and pushes content down; closing restores it',
+    (tester) async {
+      await pumpTopBar(
+        tester,
+        navMenuStyle: NooNavMenuStyle.avatarMenu,
+        withHost: true,
+      );
+      final page = find.byKey(const ValueKey('page content'));
+      final before = tester.getTopLeft(page).dy;
+      await tester.tap(find.byTooltip('Menu'));
+      await tester.pump();
+      await tester.pump(const Duration(milliseconds: 120));
+      final during = tester.getTopLeft(page).dy;
+      expect(during, greaterThan(before));
+      await tester.pump(const Duration(milliseconds: 500));
+      expect(tester.getTopLeft(page).dy, greaterThan(during));
+      expect(find.text('Settings'), findsOneWidget);
+      await tester.tap(find.bySemanticsLabel('Close menu').last);
+      await tester.pump();
+      await tester.pump(const Duration(milliseconds: 400));
+      expect(tester.getTopLeft(page).dy, before);
+      expect(find.byType(AvatarMenuCard), findsNothing);
+      expect(tester.takeException(), isNull);
+    },
+  );
+
+  for (final search in [false, true]) {
+    testWidgets(
+      'bottom avatar moves into card without shifting content (search=$search)',
+      (tester) async {
+        await pumpTopBar(
+          tester,
+          navMenuStyle: NooNavMenuStyle.avatarMenu,
+          withHost: true,
+          position: AvatarPosition.bottom,
+          search: search,
+        );
+        final page = find.byKey(const ValueKey('page content'));
+        final before = tester.getTopLeft(page);
+        expect(find.byTooltip('Menu'), findsOneWidget);
+        final origin = tester.getCenter(find.byTooltip('Menu'));
+        await tester.tap(find.byTooltip('Menu'));
+        await tester.pump();
+        await tester.pump(const Duration(milliseconds: 120));
+        final moving = tester.getCenter(
+          find.bySemanticsLabel('Close menu').last,
+        );
+        expect(moving.dy, lessThan(origin.dy));
+        await tester.pump(const Duration(milliseconds: 500));
+        expect(tester.getTopLeft(page), before);
+        final card = find.byType(AvatarMenuCard);
+        expect(card, findsOneWidget);
+        expect(tester.getBottomRight(card).dy, lessThan(origin.dy));
+        expect(tester.getSize(card).width, 376);
+        if (search) expect(find.bySemanticsLabel('Search'), findsOneWidget);
+        await tester.tap(find.bySemanticsLabel('Close menu').last);
+        await tester.pump();
+        await tester.pump(const Duration(milliseconds: 400));
+        expect(find.byType(AvatarMenuCard), findsNothing);
+        expect(tester.getCenter(find.byTooltip('Menu')), origin);
+        expect(tester.takeException(), isNull);
+      },
+    );
+  }
+
+  testWidgets('reduced motion opens immediately and system back dismisses', (
+    tester,
+  ) async {
+    await pumpTopBar(
+      tester,
+      navMenuStyle: NooNavMenuStyle.avatarMenu,
+      withHost: true,
+      reducedMotion: true,
+    );
+    await tester.tap(find.byTooltip('Menu'));
+    await tester.pump();
+    expect(find.text('Settings'), findsOneWidget);
+    await tester.binding.handlePopRoute();
+    await tester.pump();
+    expect(find.byType(AvatarMenuCard), findsNothing);
+    expect(tester.takeException(), isNull);
+  });
+  for (final position in AvatarPosition.values) {
+    for (final frosted in [false, true]) {
+      testWidgets(
+        '$position popup shares frost toggle and strength ($frosted)',
+        (tester) async {
+          await pumpTopBar(
+            tester,
+            navMenuStyle: NooNavMenuStyle.avatarMenu,
+            withHost: true,
+            position: position,
+            frosted: frosted,
+          );
+          await tester.tap(find.byTooltip('Menu'));
+          await tester.pump();
+          await tester.pump(const Duration(milliseconds: 500));
+          final card = find.byType(AvatarMenuCard);
+          final backdrop = find.ancestor(
+            of: card,
+            matching: find.byType(BackdropFilter),
+          );
+          expect(backdrop, frosted ? findsOneWidget : findsNothing);
+          if (frosted) {
+            expect(
+              tester.widget<BackdropFilter>(backdrop).filter,
+              ImageFilter.blur(sigmaX: 19, sigmaY: 19),
+            );
+            final decorations = tester.widgetList<DecoratedBox>(
+              find.ancestor(of: card, matching: find.byType(DecoratedBox)),
+            );
+            expect(
+              decorations.any(
+                (box) =>
+                    box.decoration is BoxDecoration &&
+                    ((box.decoration as BoxDecoration).color?.a ?? 0) > 0.44 &&
+                    ((box.decoration as BoxDecoration).color?.a ?? 0) < 0.46,
+              ),
+              isTrue,
+            );
+            final materials = tester.widgetList<Material>(
+              find.descendant(of: card, matching: find.byType(Material)),
+            );
+            expect(
+              materials.every(
+                (material) => material.color == Colors.transparent,
+              ),
+              isTrue,
+            );
+          }
+          expect(tester.takeException(), isNull);
+        },
+      );
+    }
+  }
+
+  testWidgets('iOS upload width interpolates while its label fades', (
+    tester,
+  ) async {
+    await pumpTopBar(
+      tester,
+      navMenuStyle: NooNavMenuStyle.avatarMenu,
+      style: NooNavStyle.ios,
+      uploadStyle: FabStyle.mini,
+    );
+    final button = find.byType(NooButton);
+    final collapsedWidth = tester.getSize(button).width;
+    await pumpTopBar(
+      tester,
+      navMenuStyle: NooNavMenuStyle.avatarMenu,
+      style: NooNavStyle.ios,
+      uploadStyle: FabStyle.expanded,
+      settleFrames: 0,
+    );
+    await tester.pump(const Duration(milliseconds: 100));
+    final middleWidth = tester.getSize(button).width;
+    final labelOpacity = tester
+        .widget<Opacity>(
+          find
+              .ancestor(of: find.text('Upload'), matching: find.byType(Opacity))
+              .first,
+        )
+        .opacity;
+    expect(labelOpacity, greaterThan(0));
+    expect(labelOpacity, lessThan(1));
+    await tester.pump(const Duration(milliseconds: 300));
+    final expandedWidth = tester.getSize(button).width;
+    expect(middleWidth, greaterThan(collapsedWidth));
+    expect(middleWidth, lessThan(expandedWidth));
+    expect(tester.getSize(button).height, 32);
+    expect(tester.takeException(), isNull);
+  });
+
+  for (final uploadStyle in FabStyle.values) {
+    for (final tab in [AppTab.files, AppTab.photos, AppTab.favorites]) {
+      testWidgets('iOS title row uses $uploadStyle upload control on $tab', (
+        tester,
+      ) async {
+        await pumpTopBar(
+          tester,
+          navMenuStyle: NooNavMenuStyle.avatarMenu,
+          style: NooNavStyle.ios,
+          tab: tab,
+          uploadStyle: uploadStyle,
+        );
+        final title = find.descendant(
+          of: find.byType(AppTopBar),
+          matching: find.text(tab.label),
+        );
+        final titleY = tester.getCenter(title).dy;
+        expect(
+          tester.getCenter(find.byTooltip('Upload')).dy,
+          closeTo(titleY, 1),
+        );
+        expect(tester.getCenter(find.byTooltip('Menu')).dy, closeTo(titleY, 1));
+        final expanded =
+            uploadStyle == FabStyle.expanded ||
+            (uploadStyle == FabStyle.auto && tab != AppTab.favorites);
+        expect(find.text('Upload'), expanded ? findsOneWidget : findsNothing);
+        expect(tester.takeException(), isNull);
+      });
+    }
+  }
+
+  testWidgets('iOS attached navigation keeps popup above its rail', (
+    tester,
+  ) async {
+    final prefs = await SharedPreferences.getInstance();
+    final accounts = jsonDecode(prefs.getString('accounts_list')!) as List;
+    accounts.add(
+      const SavedAccount(
+        id: 'other_example_org__bob',
+        serverUrl: 'https://other.example.org',
+        username: 'bob',
+      ).toJson(),
+    );
+    await prefs.setString('accounts_list', jsonEncode(accounts));
+    await pumpTopBar(
+      tester,
+      navMenuStyle: NooNavMenuStyle.avatarMenu,
+      withHost: true,
+      position: AvatarPosition.bottom,
+      search: true,
+      style: NooNavStyle.ios,
+      barStyle: NooBottomBarStyle.attached,
+    );
+    final origin = tester.getCenter(find.byTooltip('Menu'));
+    expect(
+      find.descendant(
+        of: find.byType(BottomNavBar),
+        matching: find.text('Files'),
+      ),
+      findsOneWidget,
+    );
+    expect(find.text('Photos'), findsNothing);
+    await tester.tap(find.byTooltip('Menu'));
+    await tester.pump();
+    await tester.pump(const Duration(milliseconds: 500));
+    expect(
+      tester.getBottomLeft(find.byType(AvatarMenuCard)).dy,
+      origin.dy - 25 - 1,
+    );
+    expect(tester.getSize(find.byType(AvatarMenuCard)).width, 400);
+    expect(tester.getCenter(find.byTooltip('Menu')), origin);
+    expect(find.bySemanticsLabel('Search'), findsOneWidget);
+    await tester.tap(find.text('alice'));
+    await tester.pump();
+    for (var i = 0; i < 8; i++) {
+      await tester.pump(const Duration(milliseconds: 50));
+    }
+    expect(
+      tester.getCenter(find.text('Settings')).dy,
+      lessThan(tester.getCenter(find.text('alice')).dy),
+    );
+    expect(
+      tester.getCenter(find.text('alice')).dy,
+      lessThan(tester.getCenter(find.text('bob')).dy),
+    );
+    expect(
+      tester.getCenter(find.text('bob')).dy,
+      lessThan(tester.getCenter(find.text('Add Account')).dy),
+    );
+    await tester.tap(find.byTooltip('Menu'));
+    await tester.pump();
+    await tester.pump(const Duration(milliseconds: 400));
+    expect(find.byType(AvatarMenuCard), findsNothing);
+    expect(tester.getCenter(find.byTooltip('Menu')), origin);
+    expect(tester.takeException(), isNull);
+  });
+
+  testWidgets('expanding accounts also grows the top content offset', (
+    tester,
+  ) async {
+    await pumpTopBar(
+      tester,
+      navMenuStyle: NooNavMenuStyle.avatarMenu,
+      withHost: true,
+    );
+    await tester.tap(find.byTooltip('Menu'));
+    await tester.pump();
+    await tester.pump(const Duration(milliseconds: 500));
+    final before = tester
+        .getTopLeft(find.byKey(const ValueKey('page content')))
+        .dy;
+    await tester.tap(find.text('alice'));
+    await tester.pump();
+    for (var i = 0; i < 8; i++) {
+      await tester.pump(const Duration(milliseconds: 50));
+    }
+    expect(find.text('Add Account'), findsOneWidget);
+    expect(
+      tester.getTopLeft(find.byKey(const ValueKey('page content'))).dy,
+      greaterThan(before),
+    );
+    expect(tester.takeException(), isNull);
+  });
+  testWidgets('Search satellite closes the bottom navigation popup', (
+    tester,
+  ) async {
+    await pumpTopBar(
+      tester,
+      navMenuStyle: NooNavMenuStyle.avatarMenu,
+      withHost: true,
+      position: AvatarPosition.bottom,
+      search: true,
+    );
+    await tester.tap(find.byTooltip('Menu'));
+    await tester.pump();
+    await tester.pump(const Duration(milliseconds: 500));
+    await tester.tap(find.bySemanticsLabel('Search'));
+    await tester.pump();
+    await tester.pump(const Duration(milliseconds: 400));
+    expect(find.byType(AvatarMenuCard), findsNothing);
+    expect(tester.takeException(), isNull);
+  });
 }

test/widgets/frosted_glass_container_test.dart

@@ -0,0 +1,59 @@
+import 'dart:ui' show ImageFilter;
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:provider/provider.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+import 'package:noo/providers/settings_controller.dart';
+import 'package:noo/widgets/frosted_glass_container.dart';
+import 'noo/noo_test_utils.dart';
+
+void main() {
+  setUpNooTests();
+  testNooWidgets('viewer glass follows toggle, blur and opacity', (
+    tester,
+    theme,
+    colors,
+  ) async {
+    SharedPreferences.setMockInitialValues({
+      'ui_bottom_bar_frosted': false,
+      'ui_bottom_bar_frosted_blur': 19.0,
+      'ui_bottom_bar_frosted_opacity': 0.45,
+    });
+    final settings = SettingsController();
+    await pumpNoo(
+      tester,
+      ChangeNotifierProvider.value(
+        value: settings,
+        child: const FrostedGlassContainer(
+          child: SizedBox(width: 200, height: 80),
+        ),
+      ),
+      theme: theme,
+    );
+    await tester.pumpAndSettle();
+    expect(find.byType(BackdropFilter), findsNothing);
+    final fill = find.descendant(
+      of: find.byType(FrostedGlassContainer),
+      matching: find.byType(Container),
+    );
+    expect(
+      (tester.widget<Container>(fill).decoration as BoxDecoration).color,
+      colors.surface,
+    );
+    settings.setBottomBarFrosted(true);
+    await tester.pump();
+    expect(
+      tester.widget<BackdropFilter>(find.byType(BackdropFilter)).filter,
+      ImageFilter.blur(sigmaX: 19, sigmaY: 19),
+    );
+    expect(
+      (tester.widget<Container>(fill).decoration as BoxDecoration).color,
+      colors.surface.withValues(alpha: 0.45),
+    );
+    settings.setBottomBarFrosted(false);
+    await tester.pump();
+    expect(find.byType(BackdropFilter), findsNothing);
+    await tester.pumpWidget(const SizedBox());
+    settings.dispose();
+  });
+}

test/widgets/ios_seek_bar_test.dart

@@ -0,0 +1,74 @@
+import 'package:flutter/cupertino.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:noo/widgets/viewer/media_video_preview.dart';
+import 'package:video_player/video_player.dart';
+import 'noo/noo_test_utils.dart';
+
+class _Controller extends VideoPlayerController {
+  _Controller() : super.networkUrl(Uri.parse('https://example.com/video.mp4'));
+  Duration? sought;
+  @override
+  Future<void> seekTo(Duration position) async {
+    sought = position;
+    value = value.copyWith(position: position);
+  }
+
+  @override
+  Future<void> pause() async {
+    value = value.copyWith(isPlaying: false);
+  }
+
+  @override
+  Future<void> play() async {
+    value = value.copyWith(isPlaying: true);
+  }
+}
+
+void main() {
+  setUpNooTests();
+  for (final playing in [false, true]) {
+    testWidgets('iOS scrubbing preserves playing=$playing', (tester) async {
+      final controller = _Controller();
+      controller.value = VideoPlayerValue(
+        duration: const Duration(seconds: 60),
+        position: const Duration(seconds: 15),
+        isInitialized: true,
+        isPlaying: playing,
+      );
+      await pumpNoo(
+        tester,
+        IosSeekBar(controller: controller, color: CupertinoColors.white),
+      );
+      final slider = tester.widget<CupertinoSlider>(
+        find.byType(CupertinoSlider),
+      );
+      expect(slider.value, 0.25);
+      slider.onChangeStart!(0.25);
+      expect(controller.value.isPlaying, false);
+      slider.onChanged!(0.5);
+      await tester.pump();
+      expect(controller.sought, const Duration(seconds: 30));
+      slider.onChangeEnd!(0.5);
+      await tester.pump();
+      expect(controller.value.isPlaying, playing);
+      expect(tester.takeException(), isNull);
+      await tester.pumpWidget(const SizedBox());
+      await controller.dispose();
+    });
+  }
+  testWidgets('iOS scrubber disables seeking before duration is available', (
+    tester,
+  ) async {
+    final controller = _Controller();
+    await pumpNoo(
+      tester,
+      IosSeekBar(controller: controller, color: CupertinoColors.white),
+    );
+    expect(
+      tester.widget<CupertinoSlider>(find.byType(CupertinoSlider)).onChanged,
+      isNull,
+    );
+    await tester.pumpWidget(const SizedBox());
+    await controller.dispose();
+  });
+}

test/widgets/noo/nav_test.dart

@@ -215,7 +215,7 @@ void main() {
       expect(opacity.opacity, 0);
     });
 
-    testNooWidgets('ios: unchanged icon-above-label layout, no indicator', (
+    testNooWidgets('ios: only selected tab has a label, no indicator', (
       tester,
       theme,
       c,
@@ -238,6 +238,8 @@ void main() {
       final iconCenter = tester.getCenter(find.byIcon(LucideIcons.images));
       final labelCenter = tester.getCenter(find.text('Photos'));
       expect(labelCenter.dy, greaterThan(iconCenter.dy));
+      expect(find.text('Files'), findsNothing);
+      expect(find.text('Favorites'), findsNothing);
     });
 
     testNooWidgets('floating: inset, rounded, bordered - not edge to edge', (

test/widgets/selection_bar_overlay_test.dart

@@ -0,0 +1,59 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:noo/widgets/selection_bar_overlay.dart';
+
+void main() {
+  for (final extendsBody in [false, true]) {
+    for (final safeBottom in [0.0, 34.0]) {
+      testWidgets(
+        'action bar clears navigation: extend=$extendsBody, inset=$safeBottom',
+        (tester) async {
+          tester.view.physicalSize = const Size(400, 800);
+          tester.view.devicePixelRatio = 1;
+          tester.view.padding = FakeViewPadding(bottom: safeBottom);
+          addTearDown(tester.view.reset);
+          var taps = 0;
+          await tester.pumpWidget(
+            MaterialApp(
+              home: Scaffold(
+                extendBody: extendsBody,
+                bottomNavigationBar: SafeArea(
+                  top: false,
+                  child: SizedBox(
+                    key: const ValueKey('navigation'),
+                    height: 64,
+                  ),
+                ),
+                body: SelectionBarOverlay(
+                  bar: GestureDetector(
+                    onTap: () => taps++,
+                    child: Container(
+                      key: const ValueKey('actions'),
+                      color: Colors.blue,
+                    ),
+                  ),
+                  child: ListView.builder(
+                    itemCount: 100,
+                    itemBuilder: (_, i) =>
+                        SizedBox(height: 48, child: Text('Item $i')),
+                  ),
+                ),
+              ),
+            ),
+          );
+          final actions = find.byKey(const ValueKey('actions'));
+          final navTop = tester
+              .getTopLeft(find.byKey(const ValueKey('navigation')))
+              .dy;
+          expect(tester.getBottomLeft(actions).dy, navTop - 8);
+          final before = tester.getTopLeft(actions);
+          await tester.drag(find.byType(ListView), const Offset(0, -350));
+          await tester.pumpAndSettle();
+          expect(tester.getTopLeft(actions), before);
+          await tester.tap(actions);
+          expect(taps, 1);
+        },
+      );
+    }
+  }
+}