diff --git a/DesktopClock/App.xaml b/DesktopClock/App.xaml
index 9ee2242..7e4bff6 100644
--- a/DesktopClock/App.xaml
+++ b/DesktopClock/App.xaml
@@ -1,6 +1,12 @@
-<Application x:Class="DesktopClock.App"
+<Application x:Class="DesktopClock.App"
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              StartupUri="MainWindow.xaml">
-    <Application.Resources />
+    <Application.Resources>
+        <ResourceDictionary>
+            <ResourceDictionary.MergedDictionaries>
+                <ResourceDictionary Source="Themes/FluentTheme.xaml" />
+            </ResourceDictionary.MergedDictionaries>
+        </ResourceDictionary>
+    </Application.Resources>
 </Application>
\ No newline at end of file
diff --git a/DesktopClock/SettingsWindow.xaml b/DesktopClock/SettingsWindow.xaml
index ed5927c..42d4146 100644
--- a/DesktopClock/SettingsWindow.xaml
+++ b/DesktopClock/SettingsWindow.xaml
@@ -1,4 +1,4 @@
-<Window x:Class="DesktopClock.SettingsWindow"
+<Window x:Class="DesktopClock.SettingsWindow"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
@@ -13,110 +13,11 @@
         MinWidth="800"
         MinHeight="600"
         ResizeMode="CanResize"
-        WindowStartupLocation="CenterScreen">
-    <Window.Resources>
-        <Style TargetType="Button">
-            <Setter Property="Padding" Value="8,4" />
-            <Setter Property="MinHeight" Value="28" />
-            <Setter Property="BorderThickness" Value="1" />
-            <Setter Property="Margin" Value="0,0,0,4" />
-        </Style>
-
-        <Style x:Key="SidebarButton"
-               TargetType="Button"
-               BasedOn="{StaticResource {x:Type Button}}">
-            <Setter Property="HorizontalContentAlignment" Value="Left" />
-            <Setter Property="Background" Value="Transparent" />
-            <Setter Property="BorderThickness" Value="0" />
-            <Setter Property="Margin" Value="0,0,0,2" />
-            <Setter Property="Padding" Value="8,6,24,6" />
-            <Setter Property="MinHeight" Value="32" />
-        </Style>
-
-        <Style x:Key="SidebarToolButton"
-               TargetType="Button"
-               BasedOn="{StaticResource SidebarButton}">
-            <Setter Property="Background" Value="#FFFFFF" />
-            <Setter Property="BorderBrush" Value="#DADDE3" />
-            <Setter Property="BorderThickness" Value="1" />
-            <Setter Property="Padding" Value="8,4,20,4" />
-            <Setter Property="MinWidth" Value="150" />
-            <Setter Property="MinHeight" Value="0" />
-            <Setter Property="Margin" Value="0,0,0,4" />
-        </Style>
-
-        <Style x:Key="SidebarToolDescription"
-               TargetType="TextBlock">
-            <Setter Property="FontSize" Value="11" />
-            <Setter Property="FontWeight" Value="Normal" />
-            <Setter Property="TextWrapping" Value="Wrap" />
-            <Setter Property="Opacity" Value="0.75" />
-            <Setter Property="Margin" Value="0,2,0,0" />
-        </Style>
-
-        <Style x:Key="ColorSwatchButton"
-               TargetType="Button"
-               BasedOn="{StaticResource {x:Type Button}}">
-            <Setter Property="Width" Value="32" />
-            <Setter Property="Padding" Value="0" />
-        </Style>
-
-        <Style TargetType="TextBox">
-            <Setter Property="MinHeight" Value="26" />
-            <Setter Property="Padding" Value="2" />
-            <Setter Property="VerticalContentAlignment" Value="Center" />
-            <Setter Property="BorderThickness" Value="1" />
-            <Setter Property="Margin" Value="0,0,0,4" />
-        </Style>
-
-        <Style TargetType="ComboBox">
-            <Setter Property="MinHeight" Value="26" />
-            <Setter Property="Padding" Value="6,4" />
-            <Setter Property="BorderBrush" Value="#D0D0D0" />
-            <Setter Property="Margin" Value="0,0,0,4" />
-        </Style>
-
-        <Style TargetType="CheckBox">
-            <Setter Property="Margin" Value="0,0,0,4" />
-        </Style>
-
-        <Style TargetType="Slider">
-            <Setter Property="Margin" Value="0,0,0,4" />
-        </Style>
-
-        <Style x:Key="CardGroupBox"
-               TargetType="GroupBox">
-            <Setter Property="Margin" Value="0,0,0,16" />
-            <Setter Property="Focusable" Value="True" />
-        </Style>
-
-        <Style x:Key="CardBodyPanel"
-               TargetType="StackPanel">
-            <Setter Property="Margin" Value="8" />
-        </Style>
-
-        <Style x:Key="LabelTextBlock"
-               TargetType="TextBlock">
-            <Setter Property="FontWeight" Value="SemiBold" />
-            <Setter Property="Margin" Value="0,0,0,4" />
-        </Style>
-
-        <Style x:Key="DescriptionTextBlock"
-               TargetType="TextBlock">
-            <Setter Property="FontSize" Value="11" />
-            <Setter Property="TextWrapping" Value="Wrap" />
-        </Style>
-
-        <Style x:Key="SliderValueTextBlock"
-               TargetType="TextBlock">
-            <Setter Property="VerticalAlignment" Value="Center" />
-            <Setter Property="HorizontalAlignment" Value="Right" />
-        </Style>
-
-        <Style TargetType="Hyperlink">
-            <Setter Property="TextDecorations" Value="None" />
-        </Style>
-    </Window.Resources>
+        WindowStartupLocation="CenterScreen"
+        FontFamily="Segoe UI Variable Text, Segoe UI"
+        FontSize="13"
+        UseLayoutRounding="True">
+
 
     <Grid>
         <Grid.ColumnDefinitions>
@@ -125,8 +26,8 @@
         </Grid.ColumnDefinitions>
 
         <Border Grid.Column="0"
-                Background="#FAFAFA"
-                BorderBrush="#E1E4E8"
+                Background="{DynamicResource SubtleBrush}"
+                BorderBrush="{DynamicResource SeparatorBrush}"
                 BorderThickness="0,0,1,0">
             <Grid Margin="8">
                 <Grid.RowDefinitions>
@@ -141,7 +42,7 @@
                                FontSize="20"
                                FontWeight="SemiBold" />
                     <TextBlock Text="{Binding AppVersion, StringFormat=v{0}}"
-                               Foreground="#5B6F8E"
+                               Foreground="{DynamicResource TextSecondaryBrush}"
                                Margin="0,0,0,6" />
                 </StackPanel>
 
@@ -227,7 +128,7 @@
                       ScrollChanged="SettingsScrollViewer_ScrollChanged"
                       Loaded="SettingsScrollViewer_Loaded">
             <StackPanel x:Name="SettingsContent"
-                        Margin="16,16,16,0">
+                        Margin="24,24,24,0">
             <GroupBox x:Name="DisplaySection"
                       Header="Display"
                       Style="{StaticResource CardGroupBox}">
diff --git a/DesktopClock/Themes/FluentTheme.xaml b/DesktopClock/Themes/FluentTheme.xaml
new file mode 100644
index 0000000..35ef132
--- /dev/null
+++ b/DesktopClock/Themes/FluentTheme.xaml
@@ -0,0 +1,394 @@
+<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
+
+    <!-- ═══════════════════════════════════════════════════════════ -->
+    <!-- Tokens — Colors & Geometry                                  -->
+    <!-- ═══════════════════════════════════════════════════════════ -->
+
+    <CornerRadius x:Key="ControlCornerRadius">4</CornerRadius>
+    <CornerRadius x:Key="CardCornerRadius">8</CornerRadius>
+    <CornerRadius x:Key="MenuCornerRadius">8</CornerRadius>
+
+    <SolidColorBrush x:Key="SubtleBrush" Color="#F5F5F5" />
+    <SolidColorBrush x:Key="CardBackgroundBrush" Color="#FFFFFF" />
+    <SolidColorBrush x:Key="CardBorderBrush" Color="#E5E5E5" />
+    <SolidColorBrush x:Key="SeparatorBrush" Color="#E5E5E5" />
+    <SolidColorBrush x:Key="TextSecondaryBrush" Color="#636363" />
+    <SolidColorBrush x:Key="HoverBrush" Color="#E9E9E9" />
+    <SolidColorBrush x:Key="PressedBrush" Color="#DFDFDF" />
+    <SolidColorBrush x:Key="ButtonBackgroundBrush" Color="#FBFBFB" />
+    <SolidColorBrush x:Key="ButtonBorderBrush" Color="#E0E0E0" />
+
+    <!-- System-aware brushes for accessibility / high-contrast -->
+    <SolidColorBrush x:Key="TextPrimaryBrush" Color="{DynamicResource {x:Static SystemColors.ControlTextColorKey}}" />
+    <SolidColorBrush x:Key="AccentBrush" Color="{DynamicResource {x:Static SystemColors.HighlightColorKey}}" />
+    <SolidColorBrush x:Key="MenuBackgroundBrush" Color="{DynamicResource {x:Static SystemColors.MenuColorKey}}" />
+
+    <!-- ═══════════════════════════════════════════════════════════ -->
+    <!-- Button                                                      -->
+    <!-- ═══════════════════════════════════════════════════════════ -->
+
+    <Style TargetType="{x:Type Button}">
+        <Setter Property="Background" Value="{DynamicResource ButtonBackgroundBrush}" />
+        <Setter Property="BorderBrush" Value="{DynamicResource ButtonBorderBrush}" />
+        <Setter Property="Foreground" Value="{DynamicResource TextPrimaryBrush}" />
+        <Setter Property="BorderThickness" Value="1" />
+        <Setter Property="Padding" Value="8,4" />
+        <Setter Property="MinHeight" Value="28" />
+        <Setter Property="Margin" Value="0,0,0,4" />
+        <Setter Property="HorizontalContentAlignment" Value="Center" />
+        <Setter Property="VerticalContentAlignment" Value="Center" />
+        <Setter Property="FocusVisualStyle" Value="{x:Null}" />
+        <Setter Property="SnapsToDevicePixels" Value="True" />
+        <Setter Property="Template">
+            <Setter.Value>
+                <ControlTemplate TargetType="{x:Type Button}">
+                    <Border x:Name="border"
+                            Background="{TemplateBinding Background}"
+                            BorderBrush="{TemplateBinding BorderBrush}"
+                            BorderThickness="{TemplateBinding BorderThickness}"
+                            CornerRadius="{DynamicResource ControlCornerRadius}"
+                            Padding="{TemplateBinding Padding}"
+                            SnapsToDevicePixels="True">
+                        <ContentPresenter x:Name="contentPresenter"
+                                          HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
+                                          VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
+                                          Focusable="False"
+                                          RecognizesAccessKey="True" />
+                    </Border>
+                    <ControlTemplate.Triggers>
+                        <Trigger Property="IsDefaulted" Value="True">
+                            <Setter TargetName="border" Property="BorderBrush" Value="{DynamicResource AccentBrush}" />
+                        </Trigger>
+                        <Trigger Property="IsMouseOver" Value="True">
+                            <Setter TargetName="border" Property="Background" Value="{DynamicResource HoverBrush}" />
+                        </Trigger>
+                        <Trigger Property="IsPressed" Value="True">
+                            <Setter TargetName="border" Property="Background" Value="{DynamicResource PressedBrush}" />
+                        </Trigger>
+                        <Trigger Property="IsKeyboardFocused" Value="True">
+                            <Setter TargetName="border" Property="BorderBrush" Value="{DynamicResource AccentBrush}" />
+                        </Trigger>
+                        <Trigger Property="IsEnabled" Value="False">
+                            <Setter TargetName="border" Property="Opacity" Value="0.5" />
+                        </Trigger>
+                    </ControlTemplate.Triggers>
+                </ControlTemplate>
+            </Setter.Value>
+        </Setter>
+    </Style>
+
+    <!-- ═══════════════════════════════════════════════════════════ -->
+    <!-- Sidebar Buttons                                             -->
+    <!-- ═══════════════════════════════════════════════════════════ -->
+
+    <Style x:Key="SidebarButton"
+           TargetType="Button"
+           BasedOn="{StaticResource {x:Type Button}}">
+        <Setter Property="HorizontalContentAlignment" Value="Left" />
+        <Setter Property="Background" Value="Transparent" />
+        <Setter Property="BorderThickness" Value="0" />
+        <Setter Property="Margin" Value="0,0,0,2" />
+        <Setter Property="Padding" Value="12,8,24,8" />
+        <Setter Property="MinHeight" Value="34" />
+        <Setter Property="FontSize" Value="13" />
+    </Style>
+
+    <Style x:Key="SidebarToolButton"
+           TargetType="Button"
+           BasedOn="{StaticResource SidebarButton}">
+        <Setter Property="Background" Value="{DynamicResource CardBackgroundBrush}" />
+        <Setter Property="BorderBrush" Value="{DynamicResource CardBorderBrush}" />
+        <Setter Property="BorderThickness" Value="1" />
+        <Setter Property="Padding" Value="10,6,20,6" />
+        <Setter Property="MinWidth" Value="150" />
+        <Setter Property="MinHeight" Value="0" />
+        <Setter Property="Margin" Value="0,0,0,4" />
+        <Setter Property="FontSize" Value="12" />
+    </Style>
+
+    <Style x:Key="SidebarToolDescription"
+           TargetType="TextBlock">
+        <Setter Property="FontSize" Value="11" />
+        <Setter Property="FontWeight" Value="Normal" />
+        <Setter Property="TextWrapping" Value="Wrap" />
+        <Setter Property="Foreground" Value="{DynamicResource TextSecondaryBrush}" />
+        <Setter Property="Margin" Value="0,2,0,0" />
+    </Style>
+
+    <Style x:Key="ColorSwatchButton"
+           TargetType="Button"
+           BasedOn="{StaticResource {x:Type Button}}">
+        <Setter Property="Width" Value="32" />
+        <Setter Property="Padding" Value="0" />
+    </Style>
+
+    <!-- ═══════════════════════════════════════════════════════════ -->
+    <!-- TextBox                                                     -->
+    <!-- ═══════════════════════════════════════════════════════════ -->
+
+    <Style TargetType="{x:Type TextBox}">
+        <Setter Property="MinHeight" Value="28" />
+        <Setter Property="Padding" Value="6,4" />
+        <Setter Property="VerticalContentAlignment" Value="Center" />
+        <Setter Property="BorderThickness" Value="1" />
+        <Setter Property="BorderBrush" Value="{DynamicResource ButtonBorderBrush}" />
+        <Setter Property="Margin" Value="0,0,0,4" />
+        <Setter Property="SelectionBrush" Value="{DynamicResource AccentBrush}" />
+    </Style>
+
+    <!-- ═══════════════════════════════════════════════════════════ -->
+    <!-- ComboBox                                                    -->
+    <!-- ═══════════════════════════════════════════════════════════ -->
+
+    <Style TargetType="{x:Type ComboBox}">
+        <Setter Property="MinHeight" Value="28" />
+        <Setter Property="Padding" Value="6,4" />
+        <Setter Property="BorderBrush" Value="{DynamicResource ButtonBorderBrush}" />
+        <Setter Property="Margin" Value="0,0,0,4" />
+    </Style>
+
+    <!-- ═══════════════════════════════════════════════════════════ -->
+    <!-- CheckBox                                                    -->
+    <!-- ═══════════════════════════════════════════════════════════ -->
+
+    <Style TargetType="{x:Type CheckBox}">
+        <Setter Property="Margin" Value="0,2,0,6" />
+    </Style>
+
+    <!-- ═══════════════════════════════════════════════════════════ -->
+    <!-- Slider                                                      -->
+    <!-- ═══════════════════════════════════════════════════════════ -->
+
+    <Style TargetType="{x:Type Slider}">
+        <Setter Property="Margin" Value="0,0,0,4" />
+    </Style>
+
+    <!-- ═══════════════════════════════════════════════════════════ -->
+    <!-- Hyperlink                                                   -->
+    <!-- ═══════════════════════════════════════════════════════════ -->
+
+    <Style TargetType="{x:Type Hyperlink}">
+        <Setter Property="TextDecorations" Value="None" />
+        <Setter Property="Foreground" Value="{DynamicResource AccentBrush}" />
+    </Style>
+
+    <!-- ═══════════════════════════════════════════════════════════ -->
+    <!-- Card GroupBox — Settings page section cards                  -->
+    <!-- ═══════════════════════════════════════════════════════════ -->
+
+    <Style x:Key="CardGroupBox"
+           TargetType="GroupBox">
+        <Setter Property="Margin" Value="0,0,0,12" />
+        <Setter Property="Focusable" Value="True" />
+        <Setter Property="Template">
+            <Setter.Value>
+                <ControlTemplate TargetType="GroupBox">
+                    <Border Background="{DynamicResource CardBackgroundBrush}"
+                            BorderBrush="{DynamicResource CardBorderBrush}"
+                            BorderThickness="1"
+                            CornerRadius="{DynamicResource CardCornerRadius}"
+                            SnapsToDevicePixels="True">
+                        <Border.Effect>
+                            <DropShadowEffect ShadowDepth="1"
+                                              Direction="270"
+                                              Opacity="0.06"
+                                              BlurRadius="6"
+                                              Color="#000000" />
+                        </Border.Effect>
+                        <DockPanel>
+                            <ContentPresenter DockPanel.Dock="Top"
+                                              ContentSource="Header"
+                                              TextElement.FontSize="14"
+                                              TextElement.FontWeight="SemiBold"
+                                              TextElement.Foreground="{DynamicResource TextPrimaryBrush}"
+                                              Margin="16,14,16,4" />
+                            <ContentPresenter Margin="0" />
+                        </DockPanel>
+                    </Border>
+                </ControlTemplate>
+            </Setter.Value>
+        </Setter>
+    </Style>
+
+    <Style x:Key="CardBodyPanel"
+           TargetType="StackPanel">
+        <Setter Property="Margin" Value="16,4,16,14" />
+    </Style>
+
+    <!-- ═══════════════════════════════════════════════════════════ -->
+    <!-- Label & description text                                    -->
+    <!-- ═══════════════════════════════════════════════════════════ -->
+
+    <Style x:Key="LabelTextBlock"
+           TargetType="TextBlock">
+        <Setter Property="FontWeight" Value="SemiBold" />
+        <Setter Property="Foreground" Value="{DynamicResource TextPrimaryBrush}" />
+        <Setter Property="Margin" Value="0,0,0,4" />
+    </Style>
+
+    <Style x:Key="DescriptionTextBlock"
+           TargetType="TextBlock">
+        <Setter Property="FontSize" Value="11.5" />
+        <Setter Property="TextWrapping" Value="Wrap" />
+        <Setter Property="Foreground" Value="{DynamicResource TextSecondaryBrush}" />
+    </Style>
+
+    <Style x:Key="SliderValueTextBlock"
+           TargetType="TextBlock">
+        <Setter Property="VerticalAlignment" Value="Center" />
+        <Setter Property="HorizontalAlignment" Value="Right" />
+        <Setter Property="Foreground" Value="{DynamicResource TextSecondaryBrush}" />
+    </Style>
+
+    <!-- ═══════════════════════════════════════════════════════════ -->
+    <!-- ContextMenu                                                 -->
+    <!-- ═══════════════════════════════════════════════════════════ -->
+
+    <Style TargetType="{x:Type ContextMenu}">
+        <Setter Property="SnapsToDevicePixels" Value="True" />
+        <Setter Property="HasDropShadow" Value="True" />
+        <Setter Property="Foreground" Value="{DynamicResource TextPrimaryBrush}" />
+        <Setter Property="Template">
+            <Setter.Value>
+                <ControlTemplate TargetType="{x:Type ContextMenu}">
+                    <!-- Outer transparent border gives room for the shadow -->
+                    <Border Padding="8"
+                            Background="Transparent">
+                        <Border x:Name="MenuBorder"
+                                Background="{DynamicResource MenuBackgroundBrush}"
+                                BorderBrush="{DynamicResource CardBorderBrush}"
+                                BorderThickness="1"
+                                CornerRadius="{DynamicResource MenuCornerRadius}"
+                                Padding="2,4"
+                                SnapsToDevicePixels="True">
+                            <Border.Effect>
+                                <DropShadowEffect ShadowDepth="4"
+                                                  Direction="270"
+                                                  Opacity="0.14"
+                                                  BlurRadius="16"
+                                                  Color="#000000" />
+                            </Border.Effect>
+                            <StackPanel IsItemsHost="True"
+                                        Grid.IsSharedSizeScope="True"
+                                        KeyboardNavigation.DirectionalNavigation="Cycle" />
+                        </Border>
+                    </Border>
+                </ControlTemplate>
+            </Setter.Value>
+        </Setter>
+    </Style>
+
+    <!-- ═══════════════════════════════════════════════════════════ -->
+    <!-- MenuItem                                                    -->
+    <!-- ═══════════════════════════════════════════════════════════ -->
+
+    <Style TargetType="{x:Type MenuItem}">
+        <Setter Property="OverridesDefaultStyle" Value="True" />
+        <Setter Property="Foreground" Value="{DynamicResource TextPrimaryBrush}" />
+        <Setter Property="FontSize" Value="12" />
+        <Setter Property="Template">
+            <Setter.Value>
+                <ControlTemplate TargetType="{x:Type MenuItem}">
+                    <Border x:Name="Border"
+                            Background="Transparent"
+                            CornerRadius="{DynamicResource ControlCornerRadius}"
+                            Padding="10,7"
+                            Margin="2,1"
+                            SnapsToDevicePixels="True">
+                        <Grid>
+                            <Grid.ColumnDefinitions>
+                                <ColumnDefinition Width="Auto"
+                                                  SharedSizeGroup="MenuCheckColumn"
+                                                  MinWidth="24" />
+                                <ColumnDefinition Width="*" />
+                                <ColumnDefinition Width="Auto"
+                                                  SharedSizeGroup="MenuGestureColumn" />
+                            </Grid.ColumnDefinitions>
+
+                            <!-- Checkmark -->
+                            <Path x:Name="CheckMark"
+                                  Grid.Column="0"
+                                  Data="M 2,5 L 5,8.5 L 11,1"
+                                  Stroke="{TemplateBinding Foreground}"
+                                  StrokeThickness="1.5"
+                                  StrokeStartLineCap="Round"
+                                  StrokeEndLineCap="Round"
+                                  StrokeLineJoin="Round"
+                                  VerticalAlignment="Center"
+                                  Visibility="Collapsed"
+                                  Margin="0,0,6,0" />
+
+                            <!-- Icon -->
+                            <ContentPresenter x:Name="Icon"
+                                              Grid.Column="0"
+                                              Content="{TemplateBinding Icon}"
+                                              VerticalAlignment="Center"
+                                              Width="16"
+                                              Height="16"
+                                              Margin="0,0,6,0"
+                                              Visibility="Collapsed" />
+
+                            <!-- Header -->
+                            <ContentPresenter Grid.Column="1"
+                                              ContentSource="Header"
+                                              RecognizesAccessKey="True"
+                                              VerticalAlignment="Center" />
+
+                            <!-- Input Gesture -->
+                            <TextBlock x:Name="GestureText"
+                                       Grid.Column="2"
+                                       Text="{TemplateBinding InputGestureText}"
+                                       Margin="24,0,0,0"
+                                       VerticalAlignment="Center"
+                                       Foreground="{DynamicResource TextSecondaryBrush}"
+                                       Visibility="Collapsed" />
+                        </Grid>
+                    </Border>
+                    <ControlTemplate.Triggers>
+                        <Trigger Property="Icon" Value="{x:Null}">
+                            <Setter TargetName="Icon" Property="Visibility" Value="Collapsed" />
+                        </Trigger>
+                        <MultiTrigger>
+                            <MultiTrigger.Conditions>
+                                <Condition Property="IsChecked" Value="True" />
+                                <Condition Property="IsCheckable" Value="True" />
+                            </MultiTrigger.Conditions>
+                            <Setter TargetName="CheckMark" Property="Visibility" Value="Visible" />
+                        </MultiTrigger>
+                        <Trigger Property="InputGestureText" Value="">
+                            <Setter TargetName="GestureText" Property="Visibility" Value="Collapsed" />
+                        </Trigger>
+                        <Trigger Property="IsHighlighted" Value="True">
+                            <Setter TargetName="Border" Property="Background" Value="{DynamicResource HoverBrush}" />
+                        </Trigger>
+                        <Trigger Property="IsEnabled" Value="False">
+                            <Setter Property="Foreground" Value="{DynamicResource TextSecondaryBrush}" />
+                        </Trigger>
+                    </ControlTemplate.Triggers>
+                </ControlTemplate>
+            </Setter.Value>
+        </Setter>
+    </Style>
+
+    <!-- ═══════════════════════════════════════════════════════════ -->
+    <!-- Separator (within menus)                                    -->
+    <!-- ═══════════════════════════════════════════════════════════ -->
+
+    <Style TargetType="{x:Type Separator}">
+        <Setter Property="Height" Value="1" />
+        <Setter Property="Margin" Value="28,4,8,4" />
+        <Setter Property="SnapsToDevicePixels" Value="True" />
+        <Setter Property="Template">
+            <Setter.Value>
+                <ControlTemplate TargetType="{x:Type Separator}">
+                    <Border Background="{DynamicResource SeparatorBrush}"
+                            Height="1"
+                            Margin="{TemplateBinding Margin}"
+                            SnapsToDevicePixels="True" />
+                </ControlTemplate>
+            </Setter.Value>
+        </Setter>
+    </Style>
+
+</ResourceDictionary>