fix: remove sparkline from limit cards (belongs only in Session Diary)

windows/App.xaml

@@ -15,7 +15,8 @@
         <SolidColorBrush x:Key="SurfaceBrush"      Color="#FAFAFA" po:Freeze="False"/>
         <SolidColorBrush x:Key="BannerBgBrush"     Color="#E8F2FB" po:Freeze="False"/>
         <SolidColorBrush x:Key="BannerBorderBrush" Color="#B3D6F5" po:Freeze="False"/>
-        <SolidColorBrush x:Key="HoverBrush"       Color="#EBEBEB" po:Freeze="False"/>
+        <SolidColorBrush x:Key="HoverBrush"        Color="#EBEBEB" po:Freeze="False"/>
+        <SolidColorBrush x:Key="PressedBrush"      Color="#D6D6D6" po:Freeze="False"/>
         <SolidColorBrush x:Key="BadgeBrush"        Color="#F0F0F0" po:Freeze="False"/>
 
         <Style x:Key="HeaderText" TargetType="TextBlock">
@@ -26,27 +27,31 @@
         </Style>
 
         <Style x:Key="PrimaryButton" TargetType="Button">
-            <Setter Property="Background"      Value="{DynamicResource BlueBrush}"/>
+            <Setter Property="Background"        Value="{DynamicResource BlueBrush}"/>
-            <Setter Property="Foreground"      Value="White"/>
+            <Setter Property="Foreground"        Value="White"/>
-            <Setter Property="BorderThickness" Value="0"/>
+            <Setter Property="BorderThickness"   Value="0"/>
-            <Setter Property="Padding"         Value="14,6"/>
+            <Setter Property="Padding"           Value="14,6"/>
-            <Setter Property="FontSize"        Value="12"/>
+            <Setter Property="FontSize"          Value="12"/>
-            <Setter Property="FontWeight"      Value="SemiBold"/>
+            <Setter Property="FontWeight"        Value="SemiBold"/>
-            <Setter Property="FontFamily"      Value="Segoe UI"/>
+            <Setter Property="FontFamily"        Value="Segoe UI"/>
-            <Setter Property="Cursor"          Value="Hand"/>
+            <Setter Property="Cursor"            Value="Hand"/>
+            <Setter Property="FocusVisualStyle"  Value="{x:Null}"/>
             <Setter Property="Template">
                 <Setter.Value>
                     <ControlTemplate TargetType="Button">
-                        <Border Background="{TemplateBinding Background}" CornerRadius="4"
+                        <Border x:Name="Bd" Background="{TemplateBinding Background}"
-                                Padding="{TemplateBinding Padding}">
+                                CornerRadius="4" Padding="{TemplateBinding Padding}">
                             <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"/>
                         </Border>
                         <ControlTemplate.Triggers>
                             <Trigger Property="IsMouseOver" Value="True">
-                                <Setter Property="Background" Value="#106EBE"/>
+                                <Setter TargetName="Bd" Property="Background" Value="#106EBE"/>
+                            </Trigger>
+                            <Trigger Property="IsPressed" Value="True">
+                                <Setter TargetName="Bd" Property="Background" Value="#005A9E"/>
                             </Trigger>
                             <Trigger Property="IsEnabled" Value="False">
-                                <Setter Property="Background" Value="#BDBDBD"/>
+                                <Setter TargetName="Bd" Property="Background" Value="#BDBDBD"/>
                             </Trigger>
                         </ControlTemplate.Triggers>
                     </ControlTemplate>
@@ -55,18 +60,20 @@
         </Style>
 
         <Style x:Key="SmallButton" TargetType="Button">
-            <Setter Property="Background"      Value="{DynamicResource ButtonBrush}"/>
+            <Setter Property="Background"       Value="{DynamicResource ButtonBrush}"/>
-            <Setter Property="BorderBrush"     Value="{DynamicResource BorderBrush}"/>
+            <Setter Property="BorderBrush"      Value="{DynamicResource BorderBrush}"/>
-            <Setter Property="BorderThickness" Value="1"/>
+            <Setter Property="BorderThickness"  Value="1"/>
-            <Setter Property="Foreground"      Value="{DynamicResource TextBrush}"/>
+            <Setter Property="Foreground"       Value="{DynamicResource TextBrush}"/>
-            <Setter Property="Padding"         Value="10,4"/>
+            <Setter Property="Padding"          Value="10,4"/>
-            <Setter Property="FontSize"        Value="12"/>
+            <Setter Property="FontSize"         Value="12"/>
-            <Setter Property="FontFamily"      Value="Segoe UI"/>
+            <Setter Property="FontFamily"       Value="Segoe UI"/>
-            <Setter Property="Cursor"          Value="Hand"/>
+            <Setter Property="Cursor"           Value="Hand"/>
+            <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
             <Setter Property="Template">
                 <Setter.Value>
                     <ControlTemplate TargetType="Button">
-                        <Border Background="{TemplateBinding Background}"
+                        <Border x:Name="Bd"
+                                Background="{TemplateBinding Background}"
                                 BorderBrush="{TemplateBinding BorderBrush}"
                                 BorderThickness="{TemplateBinding BorderThickness}"
                                 CornerRadius="4" Padding="{TemplateBinding Padding}">
@@ -74,7 +81,10 @@
                         </Border>
                         <ControlTemplate.Triggers>
                             <Trigger Property="IsMouseOver" Value="True">
-                                <Setter Property="Background" Value="{DynamicResource HoverBrush}"/>
+                                <Setter TargetName="Bd" Property="Background" Value="{DynamicResource HoverBrush}"/>
+                            </Trigger>
+                            <Trigger Property="IsPressed" Value="True">
+                                <Setter TargetName="Bd" Property="Background" Value="{DynamicResource PressedBrush}"/>
                             </Trigger>
                         </ControlTemplate.Triggers>
                     </ControlTemplate>
@@ -83,18 +93,19 @@
         </Style>
 
         <Style TargetType="ComboBox">
-            <Setter Property="FontFamily"      Value="Segoe UI"/>
+            <Setter Property="FontFamily"       Value="Segoe UI"/>
-            <Setter Property="FontSize"        Value="12"/>
+            <Setter Property="FontSize"         Value="12"/>
-            <Setter Property="Background"      Value="{DynamicResource CardBrush}"/>
+            <Setter Property="Background"       Value="{DynamicResource CardBrush}"/>
-            <Setter Property="Foreground"      Value="{DynamicResource TextBrush}"/>
+            <Setter Property="Foreground"       Value="{DynamicResource TextBrush}"/>
-            <Setter Property="BorderBrush"     Value="{DynamicResource BorderBrush}"/>
+            <Setter Property="BorderBrush"      Value="{DynamicResource BorderBrush}"/>
-            <Setter Property="BorderThickness" Value="1"/>
+            <Setter Property="BorderThickness"  Value="1"/>
-            <Setter Property="Padding"         Value="8,4"/>
+            <Setter Property="Padding"          Value="8,4"/>
+            <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
             <Setter Property="Template">
                 <Setter.Value>
                     <ControlTemplate TargetType="ComboBox">
                         <Grid>
-                            <Border x:Name="Border"
+                            <Border x:Name="Bd"
                                     Background="{TemplateBinding Background}"
                                     BorderBrush="{TemplateBinding BorderBrush}"
                                     BorderThickness="{TemplateBinding BorderThickness}"
@@ -106,14 +117,21 @@
                                         ContentTemplate="{TemplateBinding SelectionBoxItemTemplate}"
                                         Margin="{TemplateBinding Padding}"
                                         VerticalAlignment="Center" HorizontalAlignment="Left"/>
-                                    <TextBlock Text="▾" FontSize="10"
+                                    <TextBlock Text="&#x25BE;" FontSize="10"
                                                Foreground="{DynamicResource SecondaryBrush}"
                                                HorizontalAlignment="Right" VerticalAlignment="Center"
                                                Margin="0,0,8,0" IsHitTestVisible="False"/>
+                                    <!-- Fully transparent toggle — no system chrome bleeds through -->
                                     <ToggleButton Focusable="False" ClickMode="Press"
+                                                  FocusVisualStyle="{x:Null}"
                                                   IsChecked="{Binding IsDropDownOpen, Mode=TwoWay,
-                                                      RelativeSource={RelativeSource TemplatedParent}}"
+                                                      RelativeSource={RelativeSource TemplatedParent}}">
-                                                  Background="Transparent" BorderThickness="0"/>
+                                        <ToggleButton.Template>
+                                            <ControlTemplate TargetType="ToggleButton">
+                                                <Border Background="Transparent"/>
+                                            </ControlTemplate>
+                                        </ToggleButton.Template>
+                                    </ToggleButton>
                                 </Grid>
                             </Border>
                             <Popup x:Name="Popup" Placement="Bottom"
@@ -132,15 +150,21 @@
                                 </Border>
                             </Popup>
                         </Grid>
+                        <ControlTemplate.Triggers>
+                            <Trigger Property="IsMouseOver" Value="True">
+                                <Setter TargetName="Bd" Property="Background" Value="{DynamicResource HoverBrush}"/>
+                            </Trigger>
+                        </ControlTemplate.Triggers>
                     </ControlTemplate>
                 </Setter.Value>
             </Setter>
             <Setter Property="ItemContainerStyle">
                 <Setter.Value>
                     <Style TargetType="ComboBoxItem">
-                        <Setter Property="Foreground" Value="{DynamicResource TextBrush}"/>
+                        <Setter Property="Foreground"       Value="{DynamicResource TextBrush}"/>
-                        <Setter Property="Background" Value="{DynamicResource CardBrush}"/>
+                        <Setter Property="Background"       Value="{DynamicResource CardBrush}"/>
-                        <Setter Property="Padding"    Value="10,5"/>
+                        <Setter Property="Padding"          Value="10,5"/>
+                        <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
                         <Setter Property="Template">
                             <Setter.Value>
                                 <ControlTemplate TargetType="ComboBoxItem">
@@ -154,6 +178,10 @@
                                             <Setter TargetName="Bd" Property="Background"
                                                     Value="{DynamicResource HoverBrush}"/>
                                         </Trigger>
+                                        <Trigger Property="IsSelected" Value="True">
+                                            <Setter TargetName="Bd" Property="Background"
+                                                    Value="{DynamicResource HoverBrush}"/>
+                                        </Trigger>
                                     </ControlTemplate.Triggers>
                                 </ControlTemplate>
                             </Setter.Value>

windows/PopupWindow.xaml.cs

@@ -166,17 +166,10 @@ public partial class PopupWindow : Window
         timeRow.Children.Add(timeLeft);
         timeRow.Children.Add(timeRight);
 
-        var sparkline = new SparklineControl
-        {
-            Height = 28, Margin = new Thickness(0, 8, 0, 0), LineColor = Color.FromRgb(0xF9, 0x73, 0x16),
-            Data = limit.BurnHistory.Count > 0 ? limit.BurnHistory : null,
-        };
-
         var infoPanel = new StackPanel { VerticalAlignment = VerticalAlignment.Center };
         infoPanel.Children.Add(headerRow);
         infoPanel.Children.Add(progress);
         infoPanel.Children.Add(timeRow);
-        infoPanel.Children.Add(sparkline);
 
         var cardGrid = new Grid { Margin = new Thickness(16, 12, 16, 12) };
         cardGrid.ColumnDefinitions.Add(new ColumnDefinition { Width = GridLength.Auto });