Build CSS with Tailwind 4.3.3 standalone and daisyUI 5.7.47

tools/tailwind.sh downloads the pinned Tailwind binary and daisyUI's .mjs
plugins into the gitignored .tools/tailwind/, checking each against a pinned
sha256, so neither developers nor CI need Node. MSBuild compiles
Styles/app.css into wwwroot/css/app.css (also gitignored) on every build,
skipping the step when no source changed. The output is added to Content before
ResolveProjectStaticWebAssets, so a clean-clone publish still gets its .gz/.br
copies and a service-worker-assets.js entry.

index.html now loads css/app.css, plus ionicons as its own stylesheet. The old
bundle stays in the tree until the markup is migrated.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LsXgEaXee4GCU1hwYgPJXw

decePubClient.csproj

@@ -26,6 +26,42 @@
     <ServiceWorker Include="wwwroot\service-worker.js" PublishedContent="wwwroot\service-worker.published.js" />
   </ItemGroup>
 
+  <!-- Tailwind CSS standalone + daisyUI (tools/tailwind.sh) compile Styles/app.css into wwwroot/css/app.css on every
+       build. The output is gitignored, so on a clean clone it doesn't exist when the wwwroot\** Content glob is
+       evaluated; IncludeTailwindOutput adds it before ResolveProjectStaticWebAssets, without which it would be
+       published without its .gz/.br copies and outside service-worker-assets.js. -->
+  <PropertyGroup>
+    <TailwindToolsDir>$(MSBuildProjectDirectory)/.tools/tailwind/</TailwindToolsDir>
+    <TailwindExe>$(TailwindToolsDir)tailwindcss</TailwindExe>
+    <TailwindMode Condition="'$(Configuration)' == 'Release'">--minify</TailwindMode>
+    <TailwindMode Condition="'$(TailwindMode)' == ''">--optimize</TailwindMode>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <TailwindSource Include="Styles/**/*.css;**/*.razor;**/*.cs;wwwroot/index.html" Exclude="bin/**;obj/**;.tools/**" />
+  </ItemGroup>
+
+  <Target Name="EnsureTailwindTools" Condition="!Exists('$(TailwindExe)') Or !Exists('$(TailwindToolsDir)daisyui.mjs') Or !Exists('$(TailwindToolsDir)daisyui-theme.mjs')">
+    <Exec Command="bash tools/tailwind.sh fetch" WorkingDirectory="$(MSBuildProjectDirectory)" />
+  </Target>
+
+  <Target Name="TailwindCompile" DependsOnTargets="EnsureTailwindTools"
+          Condition="'$(DesignTimeBuild)' != 'true' And '$(NoBuild)' != 'true' And '$(SkipTailwind)' != 'true'"
+          Inputs="@(TailwindSource);$(TailwindExe);$(TailwindToolsDir)daisyui.mjs;$(TailwindToolsDir)daisyui-theme.mjs;$(MSBuildProjectFullPath)"
+          Outputs="wwwroot/css/app.css;$(IntermediateOutputPath)tailwind.stamp">
+    <Exec Command="&quot;$(TailwindExe)&quot; -i Styles/app.css -o wwwroot/css/app.css $(TailwindMode)" WorkingDirectory="$(MSBuildProjectDirectory)" />
+    <!-- The CLI leaves an unchanged output untouched, which would make this target rerun on every build. -->
+    <Touch Files="wwwroot/css/app.css;$(IntermediateOutputPath)tailwind.stamp" AlwaysCreate="true" />
+  </Target>
+
+  <Target Name="IncludeTailwindOutput" BeforeTargets="ResolveProjectStaticWebAssets" DependsOnTargets="TailwindCompile">
+    <!-- Spelled exactly like the SDK's wwwroot\** glob: publish de-duplicates by comparing OriginalItemSpec strings. -->
+    <ItemGroup>
+      <Content Remove="wwwroot\css\app.css" />
+      <Content Include="wwwroot\css\app.css" Condition="Exists('wwwroot\css\app.css')" />
+    </ItemGroup>
+  </Target>
+
   <ItemGroup>
     <Compile Update="Resources\ErrorMessages.Designer.cs">
       <DesignTime>True</DesignTime>