diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 6dc1a40c..cdec53ef 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -28,7 +28,6 @@ concurrency:
 
 permissions:
   contents: read
-  pull-requests: write
 
 jobs:
   markup-lint:
diff --git a/.github/workflows/pkg.yaml b/.github/workflows/pkg.yaml
index 558fa3ee..d7e1f52d 100644
--- a/.github/workflows/pkg.yaml
+++ b/.github/workflows/pkg.yaml
@@ -7,6 +7,9 @@ on:
     branches: [main]
   workflow_dispatch: {}
 
+permissions:
+  contents: read
+
 jobs:
   git-check:
     name: Git
diff --git a/Directory.Build.props b/Directory.Build.props
index 806acfc8..ba483fa5 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -5,7 +5,7 @@
 
   <PropertyGroup>
     <!-- Tip: Edit this value to change the current MAJOR.MINOR.PATCH version -->
-    <VersionPrefix>2.4.2</VersionPrefix>
+    <VersionPrefix>2.4.3</VersionPrefix>
   </PropertyGroup>
 
   <Choose>
diff --git a/Directory.Packages.props b/Directory.Packages.props
index f3d155b2..3575f1d1 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -1,40 +1,40 @@
-<Project>
-  <PropertyGroup>
-    <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
-    <CentralPackageTransitivePinningEnabled>true</CentralPackageTransitivePinningEnabled>
-  </PropertyGroup>
-  <ItemGroup>
-    <PackageVersion Include="AwesomeAssertions" Version="9.6.0" />
-    <PackageVersion Include="BCrypt.Net-Next" Version="4.2.0" />
-    <PackageVersion Include="Bogus" Version="35.6.5" />
-    <PackageVersion Include="ClosedXML" Version="0.105.1" />
-    <PackageVersion Include="CsvHelper" Version="33.1.0" />
-    <PackageVersion Include="FirebaseAdmin" Version="3.7.0" />
-    <PackageVersion Include="Microsoft.AspNetCore.Authentication.Google" Version="10.0.13" />
-    <PackageVersion Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="10.0.13" />
-    <PackageVersion Include="Microsoft.AspNetCore.Authentication.OpenIdConnect" Version="10.0.13" />
-    <PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="10.0.13" />
-    <PackageVersion Include="Microsoft.AspNetCore.OpenApi" Version="10.0.13" />
-    <PackageVersion Include="Microsoft.Bcl.AsyncInterfaces" Version="10.0.13" />
-    <PackageVersion Include="Microsoft.Extensions.Http.Resilience" Version="10.11.0" />
-    <PackageVersion Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.13" />
-    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.11.0" />
-    <PackageVersion Include="Microsoft.OpenApi" Version="2.13.0" />
-    <PackageVersion Include="Microsoft.Playwright" Version="1.63.0" />
-    <PackageVersion Include="Microsoft.Playwright.Xunit.v3" Version="1.63.0" />
-    <PackageVersion Include="Microsoft.Testing.Extensions.CodeCoverage" Version="18.12.0" />
-    <PackageVersion Include="Microsoft.Testing.Extensions.TrxReport" Version="2.5.1" />
-    <PackageVersion Include="MongoDB.Bson" Version="3.12.0" />
-    <PackageVersion Include="MongoDB.Driver" Version="3.12.0" />
-    <PackageVersion Include="Moq" Version="4.21.0" />
-    <PackageVersion Include="Riok.Mapperly" Version="4.3.1" />
-    <PackageVersion Include="Scalar.AspNetCore" Version="2.18.0" />
-    <PackageVersion Include="SharpCompress" Version="0.50.6" />
-    <PackageVersion Include="System.CodeDom" Version="10.0.13" />
-    <PackageVersion Include="System.Management" Version="10.0.13" />
-    <PackageVersion Include="SystemTextJson.JsonDiffPatch" Version="2.0.0" />
-    <PackageVersion Include="Withywoods.AspNetCore.Mvc.Testing" Version="2.0.5" />
-    <PackageVersion Include="Withywoods.Configuration" Version="2.0.5" />
-    <PackageVersion Include="xunit.v3.mtp-v2" Version="4.0.2" />
-  </ItemGroup>
-</Project>
+<Project>
+  <PropertyGroup>
+    <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
+    <CentralPackageTransitivePinningEnabled>true</CentralPackageTransitivePinningEnabled>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageVersion Include="AwesomeAssertions" Version="9.6.0" />
+    <PackageVersion Include="BCrypt.Net-Next" Version="4.2.0" />
+    <PackageVersion Include="Bogus" Version="35.6.5" />
+    <PackageVersion Include="ClosedXML" Version="0.105.1" />
+    <PackageVersion Include="CsvHelper" Version="33.1.0" />
+    <PackageVersion Include="FirebaseAdmin" Version="3.7.0" />
+    <PackageVersion Include="Microsoft.AspNetCore.Authentication.Google" Version="10.0.14" />
+    <PackageVersion Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="10.0.14" />
+    <PackageVersion Include="Microsoft.AspNetCore.Authentication.OpenIdConnect" Version="10.0.14" />
+    <PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="10.0.14" />
+    <PackageVersion Include="Microsoft.AspNetCore.OpenApi" Version="10.0.14" />
+    <PackageVersion Include="Microsoft.Bcl.AsyncInterfaces" Version="10.0.14" />
+    <PackageVersion Include="Microsoft.Extensions.Http.Resilience" Version="10.11.0" />
+    <PackageVersion Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.14" />
+    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.11.0" />
+    <PackageVersion Include="Microsoft.OpenApi" Version="2.13.0" />
+    <PackageVersion Include="Microsoft.Playwright" Version="1.64.1" />
+    <PackageVersion Include="Microsoft.Playwright.Xunit.v3" Version="1.64.1" />
+    <PackageVersion Include="Microsoft.Testing.Extensions.CodeCoverage" Version="18.12.0" />
+    <PackageVersion Include="Microsoft.Testing.Extensions.TrxReport" Version="2.5.1" />
+    <PackageVersion Include="MongoDB.Bson" Version="3.13.0" />
+    <PackageVersion Include="MongoDB.Driver" Version="3.13.0" />
+    <PackageVersion Include="Moq" Version="4.21.0" />
+    <PackageVersion Include="Riok.Mapperly" Version="4.3.1" />
+    <PackageVersion Include="Scalar.AspNetCore" Version="2.18.3" />
+    <PackageVersion Include="SharpCompress" Version="0.50.6" />
+    <PackageVersion Include="System.CodeDom" Version="10.0.14" />
+    <PackageVersion Include="System.Management" Version="10.0.14" />
+    <PackageVersion Include="SystemTextJson.JsonDiffPatch" Version="2.0.0" />
+    <PackageVersion Include="Withywoods.AspNetCore.Mvc.Testing" Version="2.0.5" />
+    <PackageVersion Include="Withywoods.Configuration" Version="2.0.5" />
+    <PackageVersion Include="xunit.v3.mtp-v2" Version="4.0.2" />
+  </ItemGroup>
+</Project>
diff --git a/docs/blazor-ui.md b/docs/blazor-ui.md
index 27f9512a..6e6c3dea 100644
--- a/docs/blazor-ui.md
+++ b/docs/blazor-ui.md
@@ -79,6 +79,10 @@ A missing item is a 404 at every layer:
 - **Enter takes the highlight, Tab only one reached with the arrow keys**, since completing on Tab turns "Dr Kim" into "Dr Kimura".
   Escape drops the highlight, and there is no `preventDefault` on keydown.
 
+**`DeleteItemControl`** deletes a media item from its detail page, with the same confirmation as a list row.
+It replaces the history entry with the list, so browser back skips the deleted item.
+The admin unlink beside it uses the broken-chain icon, since the trash means deleting the item.
+
 ## Razor gotchas
 
 - **A `string`-typed component `[Parameter]` needs the `@` prefix.**
@@ -100,6 +104,14 @@ Sonar reports every `!important` (`css:S9423`), and an `!important` theme also s
 
 `wwwroot/Keeptrack.BlazorApp.lib.module.js` is loaded automatically by name (never a manual `<script>` tag), and is where `blazor.addEventListener('enhancedload', ...)` re-applies client-side DOM state.
 
+### Responsive widths
+
+Phone below 768px, laptop up to 1400px, and the large-screen block last in `app.css` above it, so its overrides win the cascade.
+From 1400px, the content column and the detail measures widen.
+From 1600px, list rows go two per line instead of stretching.
+From 1920px, the root font size grows.
+The px measures (covers, grid columns, thumbnails) are widened alongside it, since rem does not reach them.
+
 ### Icons
 
 **Icons are Unicode with text presentation** (`◈ ✓ ✕ ★ ▶ ↻ ⌂ ⚙ ♪ ◼ ▭ ▬ ◆`), never a codepoint with `Emoji_Presentation=Yes` (`⭐`, `👁`), never with U+FE0F.
diff --git a/docs/testing.md b/docs/testing.md
index e98fad20..b3abdae6 100644
--- a/docs/testing.md
+++ b/docs/testing.md
@@ -50,7 +50,7 @@ Gherkin was rejected as twice the code for the same coverage.
 - **`ExploreSmokeTest` seeds `explore_catalogue` directly** (`End2EndFixture.SeedExploreCatalogueAsync`, self-hosted only), since the e2e host never runs the refresh.
   It seeds every ranking `ExploreRankings.Rankings` declares for a domain (the one read follows a stored admin setting), uses real provider ids only for the two `Add` cases (TMDB 278, IGDB 72),
   and its `[Theory]`s cover movies and video games, which differ in tab gating, ranking and id space.
-- `MobileScreenshotTest` is an assertion-free visual harness behind `E2E_MOBILE_CHECK=true`, capturing every page at a phone viewport for review.
+- `MobileScreenshotTest` is an assertion-free visual harness behind `E2E_MOBILE_CHECK=true`, capturing every page at a phone viewport, then a sample at 1280px and at 2560px, for review.
 
 **`PageBase.WaitForReadyAsync` reloads once and re-asserts** (`ExpectWithReloadAsync`, also behind `ListPage.ExpectRowThumbnailAsync`), for two cases where waiting never helps:
 
diff --git a/src/BlazorApp/Components/Inventory/Pages/AlbumDetail.razor b/src/BlazorApp/Components/Inventory/Pages/AlbumDetail.razor
index 4fd86a5f..2d6147a5 100644
--- a/src/BlazorApp/Components/Inventory/Pages/AlbumDetail.razor
+++ b/src/BlazorApp/Components/Inventory/Pages/AlbumDetail.razor
@@ -31,6 +31,7 @@ else
             <ReferenceMatchControls TDto="AlbumDto" Api="Api" ItemId="@(Album.Id!)" ReferenceId="@Album.ReferenceId" ReferenceTitle="@Reference?.Title"
                                     ReferenceDataDescription="cover, tracklist, artist"
                                     OnChecked="OnReferenceCheckedAsync" OnUnlinked="LoadAsync"/>
+            <DeleteItemControl TDto="AlbumDto" Api="Api" ItemId="@(Album.Id!)" ItemName="album" ListRoute="/albums"/>
         </div>
         <div class="d-flex gap-2">
             <button class="btn btn-sm kt-toggle-btn @(Album.IsFavorite ? "active" : "")" @onclick="ToggleFavoriteAsync">Favorites</button>
diff --git a/src/BlazorApp/Components/Inventory/Pages/BookDetail.razor b/src/BlazorApp/Components/Inventory/Pages/BookDetail.razor
index dc372548..ba0e5e3d 100644
--- a/src/BlazorApp/Components/Inventory/Pages/BookDetail.razor
+++ b/src/BlazorApp/Components/Inventory/Pages/BookDetail.razor
@@ -31,6 +31,7 @@ else
             <ReferenceMatchControls TDto="BookDto" Api="Api" ItemId="@(Book.Id!)" ReferenceId="@Book.ReferenceId" ReferenceTitle="@Reference?.Title"
                                     ReferenceDataDescription="cover, synopsis, genre/language/ISBN autofill"
                                     OnChecked="OnReferenceCheckedAsync" OnUnlinked="LoadAsync"/>
+            <DeleteItemControl TDto="BookDto" Api="Api" ItemId="@(Book.Id!)" ItemName="book" ListRoute="/books"/>
         </div>
         @* "Read" is not here but on the card below as a .kt-corner-flag (see MovieDetail). *@
         <div class="d-flex gap-2 flex-wrap">
diff --git a/src/BlazorApp/Components/Inventory/Pages/MovieDetail.razor b/src/BlazorApp/Components/Inventory/Pages/MovieDetail.razor
index f30a9300..49231cf9 100644
--- a/src/BlazorApp/Components/Inventory/Pages/MovieDetail.razor
+++ b/src/BlazorApp/Components/Inventory/Pages/MovieDetail.razor
@@ -31,6 +31,7 @@ else
             <ReferenceMatchControls TDto="MovieDto" Api="Api" ItemId="@(Movie.Id!)" ReferenceId="@Movie.ReferenceId" ReferenceTitle="@Reference?.Title"
                                     ReferenceDataDescription="cover, synopsis, cast/genres"
                                     OnChecked="OnReferenceCheckedAsync" OnUnlinked="LoadAsync"/>
+            <DeleteItemControl TDto="MovieDto" Api="Api" ItemId="@(Movie.Id!)" ItemName="movie" ListRoute="/movies"/>
         </div>
         @* "Watched" is not here but on the card below as a .kt-corner-flag, since it outranks these three flags,
            and its success green says "finished" where their accent blue says "flagged". *@
diff --git a/src/BlazorApp/Components/Inventory/Pages/TvShowDetail.razor b/src/BlazorApp/Components/Inventory/Pages/TvShowDetail.razor
index fa2c25bb..65080e5c 100644
--- a/src/BlazorApp/Components/Inventory/Pages/TvShowDetail.razor
+++ b/src/BlazorApp/Components/Inventory/Pages/TvShowDetail.razor
@@ -31,6 +31,7 @@ else
             <ReferenceMatchControls TDto="TvShowDto" Api="Api" ItemId="@(_show.Id!)" ReferenceId="@_show.ReferenceId" ReferenceTitle="@_reference?.Title"
                                     ReferenceDataDescription="cover, synopsis, cast/genres, episode guide"
                                     OnChecked="OnReferenceCheckedAsync" OnUnlinked="LoadAsync"/>
+            <DeleteItemControl TDto="TvShowDto" Api="Api" ItemId="@(_show.Id!)" ItemName="TV show" ListRoute="/tv-shows"/>
         </div>
         <div class="d-flex gap-2">
             <button class="btn btn-sm kt-toggle-btn @(_show.IsFavorite ? "active" : "")" @onclick="ToggleFavoriteAsync">Favorites</button>
diff --git a/src/BlazorApp/Components/Inventory/Pages/VideoGameDetail.razor b/src/BlazorApp/Components/Inventory/Pages/VideoGameDetail.razor
index 271932d3..10a6b172 100644
--- a/src/BlazorApp/Components/Inventory/Pages/VideoGameDetail.razor
+++ b/src/BlazorApp/Components/Inventory/Pages/VideoGameDetail.razor
@@ -34,6 +34,7 @@ else
             <ReferenceMatchControls TDto="VideoGameDto" Api="Api" ItemId="@(Game.Id!)" ReferenceId="@Game.ReferenceId" ReferenceTitle="@Reference?.Title"
                                     ReferenceDataDescription="cover, synopsis, genres/platforms"
                                     OnChecked="OnReferenceCheckedAsync" OnUnlinked="LoadAsync"/>
+            <DeleteItemControl TDto="VideoGameDto" Api="Api" ItemId="@(Game.Id!)" ItemName="video game" ListRoute="/video-games"/>
         </div>
         <div class="d-flex gap-2">
             <button class="btn btn-sm kt-toggle-btn @(Game.IsWishlisted ? "active" : "")" @onclick="ToggleWishlistedAsync"><Icon Name="wishlist" Size="13"/> Wishlist</button>
diff --git a/src/BlazorApp/Components/Inventory/Shared/DeleteItemControl.razor b/src/BlazorApp/Components/Inventory/Shared/DeleteItemControl.razor
new file mode 100644
index 00000000..eb86c651
--- /dev/null
+++ b/src/BlazorApp/Components/Inventory/Shared/DeleteItemControl.razor
@@ -0,0 +1,47 @@
+@typeparam TDto where TDto : Keeptrack.Common.System.IHasId
+@inject NavigationManager Navigation
+@* A detail page's own delete, with the same confirmation as a list row's. *@
+
+@if (_error is not null)
+{
+    <span class="kt-inline-toast danger">@_error</span>
+}
+<button class="kt-icon-btn" title="Delete this @ItemName" aria-label="Delete" @onclick="() => _pending = true">
+    <Icon Name="trash" Size="15"/>
+</button>
+<ConfirmModal Show="_pending"
+              Title="Delete this item?"
+              Message="@($"This will permanently delete this {ItemName}. This can't be undone.")"
+              OnConfirm="DeleteAsync" OnCancel="() => _pending = false"/>
+
+@code {
+    [Parameter, EditorRequired] public required InventoryApiClientBase<TDto> Api { get; set; }
+
+    [Parameter, EditorRequired] public required string ItemId { get; set; }
+
+    /// <summary>Lower case, as it reads in the confirmation, for example "movie".</summary>
+    [Parameter, EditorRequired] public required string ItemName { get; set; }
+
+    [Parameter, EditorRequired] public required string ListRoute { get; set; }
+
+    private bool _pending;
+    private string? _error;
+
+    private async Task DeleteAsync()
+    {
+        _pending = false;
+        _error = null;
+        try
+        {
+            await Api.DeleteAsync(ItemId);
+        }
+        catch (Exception ex)
+        {
+            _error = $"Error: {ex.Message}";
+            return;
+        }
+
+        // Replaces the history entry, so browser back skips the page of an item that no longer exists.
+        Navigation.NavigateTo(ListRoute, replace: true);
+    }
+}
diff --git a/src/BlazorApp/Components/Inventory/Shared/ReferenceMatchControls.razor b/src/BlazorApp/Components/Inventory/Shared/ReferenceMatchControls.razor
index 84275e6e..7e83cfce 100644
--- a/src/BlazorApp/Components/Inventory/Shared/ReferenceMatchControls.razor
+++ b/src/BlazorApp/Components/Inventory/Shared/ReferenceMatchControls.razor
@@ -19,7 +19,7 @@
         <Authorized>
             <button class="kt-icon-btn" title="Unlink and remove this reference" aria-label="Unlink reference"
                     @onclick="() => _pendingUnlink = true">
-                <Icon Name="trash" Size="15"/>
+                <Icon Name="unlink" Size="15"/>
             </button>
         </Authorized>
     </AuthorizeView>
diff --git a/src/BlazorApp/Components/ReferenceDataAdmin/ReferenceDataAdminPage.razor b/src/BlazorApp/Components/ReferenceDataAdmin/ReferenceDataAdminPage.razor
index da6098ca..91390724 100644
--- a/src/BlazorApp/Components/ReferenceDataAdmin/ReferenceDataAdminPage.razor
+++ b/src/BlazorApp/Components/ReferenceDataAdmin/ReferenceDataAdminPage.razor
@@ -3,6 +3,7 @@
 
 <div class="kt-page-header">
     <h1>Reference data</h1>
+    <span class="kt-app-version" title="Running build">v@(AppVersion.Current)</span>
 </div>
 
 @* Linking unresolved titles is the frequent admin task, so it comes first, and the occasional sync, export and import sit below it. *@
diff --git a/src/BlazorApp/Components/Shared/AppVersion.cs b/src/BlazorApp/Components/Shared/AppVersion.cs
new file mode 100644
index 00000000..6874066a
--- /dev/null
+++ b/src/BlazorApp/Components/Shared/AppVersion.cs
@@ -0,0 +1,28 @@
+using System.Reflection;
+
+namespace Keeptrack.BlazorApp.Components.Shared;
+
+/// <summary>
+/// The running build's version, from the informational version that <c>Directory.Build.props</c> and the SDK's source revision produce.
+/// </summary>
+public static class AppVersion
+{
+    private const int ShortHashLength = 7;
+
+    public static string Current { get; } =
+        Format(typeof(AppVersion).Assembly.GetCustomAttribute<AssemblyInformationalVersionAttribute>()?.InformationalVersion);
+
+    public static string Format(string? informationalVersion)
+    {
+        if (string.IsNullOrEmpty(informationalVersion))
+        {
+            return "unknown";
+        }
+
+        // The SDK appends the full 40-character commit hash, which is unreadable in a header and as identifying at git's usual 7.
+        var plus = informationalVersion.IndexOf('+');
+        return plus >= 0 && informationalVersion.Length - plus - 1 > ShortHashLength
+            ? informationalVersion[..(plus + 1 + ShortHashLength)]
+            : informationalVersion;
+    }
+}
diff --git a/src/BlazorApp/Components/Shared/Icon.razor b/src/BlazorApp/Components/Shared/Icon.razor
index 443f8aba..5698537f 100644
--- a/src/BlazorApp/Components/Shared/Icon.razor
+++ b/src/BlazorApp/Components/Shared/Icon.razor
@@ -38,8 +38,10 @@
             break;
 
         case "movies":
-            <rect x="3" y="4.5" width="18" height="15" rx="2"/>
-            <path d="M3 9.5h18M3 14.5h18M8 4.5v15M16 4.5v15"/>
+            <circle cx="6.5" cy="6.5" r="3"/>
+            <circle cx="13.5" cy="6.5" r="3"/>
+            <rect x="3" y="10.5" width="13" height="8.5" rx="1.5"/>
+            <path d="M16 13.4 21 11v7.5l-5-2.4"/>
             break;
 
         case "tv-shows":
@@ -139,6 +141,13 @@
             <path d="M10.2 10.5v7M13.8 10.5v7"/>
             break;
 
+        @* A broken chain, distinct from "trash": it removes the link to the reference, never the item itself. *@
+        case "unlink":
+            <path d="M13 6.4 14.4 5a3.8 3.8 0 0 1 5.4 5.4l-1.4 1.4"/>
+            <path d="M11 17.6 9.6 19a3.8 3.8 0 0 1-5.4-5.4l1.4-1.4"/>
+            <path d="M8 3v2.6M3 8h2.6M16 21v-2.6M21 16h-2.6"/>
+            break;
+
         case "external-link":
             <path d="M18 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h6"/>
             <path d="M15 3h6v6"/>
diff --git a/src/BlazorApp/wwwroot/app.css b/src/BlazorApp/wwwroot/app.css
index 9fc54d54..a35238ce 100644
--- a/src/BlazorApp/wwwroot/app.css
+++ b/src/BlazorApp/wwwroot/app.css
@@ -392,7 +392,8 @@ div.content,
 /* Inventory rows in list view only, added by InventoryList, never to the grid.
    A .kt-item-row clusters its content left and pushes its delete button to the far edge, so across the full 1100px column the title and its delete icon sit ~900px apart.
    Capping the measure keeps a row readable as one object.
-   The grid, the admin queues and the dense car and health journals take the full width. */
+   The grid, the admin queues and the dense car and health journals take the full width.
+   On a large screen the cap lifts and the rows go two per line instead (see Large screens). */
 .kt-table-wrap-list { max-width: 920px; margin-inline: auto; }
 
 .kt-table-header {
@@ -699,6 +700,8 @@ a.kt-item-row { color: inherit; text-decoration: none; }
 }
 .kt-page-header h1 { font-size: 2rem; color: var(--kt-text); margin: 0; line-height: 1; }
 .kt-page-header h1 span { color: var(--kt-accent); }
+/* The running build on the admin page, so a deployment can be checked from the browser. */
+.kt-app-version { color: var(--kt-text-muted); font-size: 0.8rem; font-variant-numeric: tabular-nums; }
 
 /* ── Quick Add ─────────────────────────────────────────────────────── */
 .kt-quickadd-back {
@@ -1872,3 +1875,44 @@ a.kt-item-row { color: inherit; text-decoration: none; }
   background: var(--kt-surface);
 }
 .kt-dropzone-icon { font-size: 2.25rem; display: block; margin-bottom: 1rem; color: var(--kt-text-subtle); }
+
+/* ── Large screens ─────────────────────────────────────────────────── */
+/* Last in the file so these overrides win the cascade over every base rule they widen.
+   The base measures suit a laptop, and on a large monitor they leave the content as a narrow strip between two empty margins.
+   Text grows with the root font size, while px measures (covers, grid columns) are widened explicitly since rem does not reach them. */
+@media (min-width: 1400px) {
+  article.content, div.content, .content { max-width: 1440px; padding: 2.5rem 3.5rem; }
+  .kt-search-input-wrap { max-width: 480px; }
+  .kt-detail-hero { max-width: 1100px; }
+  .kt-form-card > .row { max-width: 1100px; }
+  .kt-game-page { max-width: 1100px; }
+}
+
+/* Rows go two per line rather than stretching, which keeps each row's title and delete button close together without leaving the sides empty. */
+@media (min-width: 1600px) {
+  .kt-table-wrap-list { max-width: none; }
+  .kt-item-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
+  .kt-item-list > .kt-item-row:nth-child(odd) { border-right: 1px solid var(--kt-border); }
+}
+
+@media (min-width: 1920px) {
+  html, body { font-size: 16px; }
+  article.content, div.content, .content { max-width: 1800px; padding: 3rem 4rem; }
+  .sidebar { width: 250px; }
+  .kt-search-input-wrap { max-width: 560px; }
+  .kt-sort-select { width: 96px; }
+  .kt-item-thumb { width: 52px; height: 78px; }
+  .kt-item-thumb.square { width: 64px; height: 64px; }
+  .kt-item-thumb.wide { width: 112px; height: 63px; }
+  .kt-item-grid { grid-template-columns: repeat(auto-fill, minmax(175px, 1fr)); gap: 1.5rem 1.25rem; }
+  .kt-item-grid.square { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
+  .kt-item-grid.wide { grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
+  .kt-detail-hero { max-width: 1300px; --kt-hero-cover-width: 280px; }
+  .kt-detail-hero.square { --kt-hero-cover-width: 320px; }
+  .kt-form-card > .row { max-width: 1300px; }
+  .kt-game-page { max-width: 1300px; }
+}
+
+@media (min-width: 2400px) {
+  html, body { font-size: 17px; }
+}
diff --git a/test/BlazorApp.PlaywrightTests/Pages/ReferenceableDetailPageBase.cs b/test/BlazorApp.PlaywrightTests/Pages/ReferenceableDetailPageBase.cs
index a3c7fb54..f62ac070 100644
--- a/test/BlazorApp.PlaywrightTests/Pages/ReferenceableDetailPageBase.cs
+++ b/test/BlazorApp.PlaywrightTests/Pages/ReferenceableDetailPageBase.cs
@@ -20,6 +20,17 @@ public abstract class ReferenceableDetailPageBase(IPage page) : DetailPageBase(p
 
     private ILocator ReferenceToast => Page.Locator(".kt-inline-toast");
 
+    /// <summary>
+    /// Deletes the item from its own page, the confirm click scoped to the modal, whose button shares the "Delete" name.
+    /// Opening the confirmation is the first click after load, so it goes through <see cref="PageBase.ClickUntilAsync(ILocator, ILocator, int)"/>.
+    /// </summary>
+    public async Task DeleteItemAsync()
+    {
+        var confirm = Page.Locator(".kt-modal").GetByRole(AriaRole.Button, new LocatorGetByRoleOptions { Name = "Delete", Exact = true });
+        await ClickUntilAsync(Page.Locator(".kt-page-header").GetByRole(AriaRole.Button, new LocatorGetByRoleOptions { Name = "Delete", Exact = true }), confirm);
+        await confirm.ClickAsync();
+    }
+
     /// <summary>
     /// The non-admin "check for reference match" icon button.
     /// </summary>
diff --git a/test/BlazorApp.PlaywrightTests/Smoke/MobileScreenshotTest.cs b/test/BlazorApp.PlaywrightTests/Smoke/MobileScreenshotTest.cs
index db4d8307..37e44921 100644
--- a/test/BlazorApp.PlaywrightTests/Smoke/MobileScreenshotTest.cs
+++ b/test/BlazorApp.PlaywrightTests/Smoke/MobileScreenshotTest.cs
@@ -184,6 +184,23 @@ public async Task CaptureAllPagesAtPhoneViewport()
             await SetListViewPreferenceAsync(null);
             await CaptureAsync("/books", "books-list-desktop");
 
+            // A large monitor, where a layout tuned for a laptop leaves the content as a narrow strip between two empty margins.
+            await Page.SetViewportSizeAsync(2560, 1440);
+            await CaptureAsync("/", "home-large");
+            await CaptureAsync("/books", "books-list-large");
+            await CaptureAsync("/tv-shows", "tv-shows-list-large");
+            await SetListViewPreferenceAsync("grid");
+            await CaptureAsync("/books", "books-grid-large");
+            await CaptureAsync("/video-games", "video-games-grid-large");
+            await SetListViewPreferenceAsync(null);
+            await CaptureAsync("/watch-next", "watch-next-large");
+            await CaptureAsync("/admin/reference-data", "admin-reference-data-large");
+            await CaptureDetailByTitleAsync("/video-games", "Half-Life 2", "video-game-detail-large");
+            await CaptureDetailByTitleAsync("/albums", "Nevermind", "album-detail-large");
+            await CaptureFirstDetailAsync("/movies", "movie-detail-large");
+            await CaptureFirstDetailAsync("/cars", "car-detail-large");
+            await Page.SetViewportSizeAsync(1280, 900);
+
             // A dark-theme sample of the densest pages.
             await Page.EmulateMediaAsync(new PageEmulateMediaOptions { ColorScheme = ColorScheme.Dark });
             await CaptureAsync("/movies", "movies-dark");
diff --git a/test/BlazorApp.PlaywrightTests/Smoke/MovieSmokeTest.cs b/test/BlazorApp.PlaywrightTests/Smoke/MovieSmokeTest.cs
index 95018bfb..49ccc797 100644
--- a/test/BlazorApp.PlaywrightTests/Smoke/MovieSmokeTest.cs
+++ b/test/BlazorApp.PlaywrightTests/Smoke/MovieSmokeTest.cs
@@ -1,6 +1,9 @@
+using System.Net;
+using System.Text.RegularExpressions;
 using System.Threading.Tasks;
 using Keeptrack.BlazorApp.PlaywrightTests.Hosting;
 using Keeptrack.BlazorApp.PlaywrightTests.Pages;
+using Keeptrack.WebApi.Contracts.Dto;
 using Microsoft.Playwright;
 using Xunit;
 
@@ -11,7 +14,7 @@ namespace Keeptrack.BlazorApp.PlaywrightTests.Smoke;
 /// </summary>
 [Trait("Category", "E2eTests")]
 [Trait("Mode", "Mutating")]
-public class MovieSmokeTest(End2EndFixture fixture) : SmokeTestBase(fixture)
+public partial class MovieSmokeTest(End2EndFixture fixture) : SmokeTestBase(fixture)
 {
     private const string Title = "The Terminator";
     private const string Year = "1984";
@@ -37,4 +40,28 @@ public async Task AddLinkAndDelete_MovieThroughTheList()
 
         await Assertions.Expect(detail.CoverImage).ToBeVisibleAsync();
     }
+
+    [Fact]
+    public async Task Delete_FromTheDetailPage_ReturnsToTheListWithoutTheItem()
+    {
+        SkipIfReadOnly();
+        // a title no provider holds, so no background link lands while the page is open
+        const string title = "Zzq Detail Delete Movie";
+        var movie = await CreateItemAsync("api/movies", new MovieDto { Title = title });
+
+        await Page.GotoAsync($"/movies/{movie.Id}");
+        var detail = new MovieDetailPage(Page);
+        await detail.WaitForReadyAsync();
+        await detail.DeleteItemAsync();
+
+        var list = new ListPage(Page, "/movies", "Movies");
+        await list.WaitForReadyAsync();
+        await Assertions.Expect(Page).ToHaveURLAsync(MoviesListRegex());
+        await Assertions.Expect(list.Row(title)).ToHaveCountAsync(0);
+        var response = await Fixture.ApiHttpClient.GetAsync($"api/movies/{movie.Id}", TestContext.Current.CancellationToken);
+        Assert.Equal(HttpStatusCode.NotFound, response.StatusCode);
+    }
+
+    [GeneratedRegex("/movies$")]
+    private static partial Regex MoviesListRegex();
 }
diff --git a/test/BlazorApp.UnitTests/Components/Shared/AppVersionTest.cs b/test/BlazorApp.UnitTests/Components/Shared/AppVersionTest.cs
new file mode 100644
index 00000000..e0f01f3f
--- /dev/null
+++ b/test/BlazorApp.UnitTests/Components/Shared/AppVersionTest.cs
@@ -0,0 +1,31 @@
+using AwesomeAssertions;
+using Keeptrack.BlazorApp.Components.Shared;
+using Xunit;
+
+namespace Keeptrack.BlazorApp.UnitTests.Components.Shared;
+
+[Trait("Category", "UnitTests")]
+public class AppVersionTest
+{
+    [Fact]
+    public void Format_ShortensTheCommitHash()
+    {
+        AppVersion.Format("2.4.2-alpha-000123+0dbff56febdf601e3e03e6ee5868bb1bc4c8dc71").Should().Be("2.4.2-alpha-000123+0dbff56");
+    }
+
+    [Theory]
+    [InlineData("2.4.2", "2.4.2")]
+    [InlineData("2.4.2+abc", "2.4.2+abc")]
+    [InlineData(null, "unknown")]
+    [InlineData("", "unknown")]
+    public void Format_KeepsAVersionWithoutALongHash(string? informationalVersion, string expected)
+    {
+        AppVersion.Format(informationalVersion).Should().Be(expected);
+    }
+
+    [Fact]
+    public void Current_IsTheBlazorAppAssemblyVersion()
+    {
+        AppVersion.Current.Should().StartWith(typeof(AppVersion).Assembly.GetName().Version!.ToString(3));
+    }
+}