Windows-Tool/src/WindowsToolbox.App/App.xaml

<Application x:Class="WindowsToolbox.App.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:local="clr-namespace:WindowsToolbox.App"
             StartupUri="MainWindow.xaml">
    <Application.Resources>
        <local:PageVisibilityConverter x:Key="PageVisibilityConverter" />
        <BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter" />

        <SolidColorBrush x:Key="BackgroundBrush" Color="#F3F6FA" />
        <SolidColorBrush x:Key="SidebarBrush" Color="#111827" />
        <SolidColorBrush x:Key="PrimaryBrush" Color="#2563EB" />
        <SolidColorBrush x:Key="PrimaryHoverBrush" Color="#1D4ED8" />
        <SolidColorBrush x:Key="DangerBrush" Color="#DC2626" />
        <SolidColorBrush x:Key="DangerHoverBrush" Color="#B91C1C" />
        <SolidColorBrush x:Key="TextBrush" Color="#172033" />
        <SolidColorBrush x:Key="MutedTextBrush" Color="#64748B" />
        <SolidColorBrush x:Key="BorderBrush" Color="#E2E8F0" />

        <Style TargetType="Window">
            <Setter Property="FontFamily" Value="Segoe UI Variable Text, Microsoft YaHei UI" />
            <Setter Property="TextOptions.TextFormattingMode" Value="Display" />
            <Setter Property="TextOptions.TextRenderingMode" Value="ClearType" />
        </Style>

        <Style x:Key="CardStyle" TargetType="Border">
            <Setter Property="Background" Value="White" />
            <Setter Property="CornerRadius" Value="12" />
            <Setter Property="BorderBrush" Value="{StaticResource BorderBrush}" />
            <Setter Property="BorderThickness" Value="1" />
            <Setter Property="Padding" Value="22" />
            <Setter Property="Margin" Value="0,0,0,16" />
        </Style>

        <Style x:Key="PageTitleStyle" TargetType="TextBlock">
            <Setter Property="FontSize" Value="28" />
            <Setter Property="FontWeight" Value="SemiBold" />
            <Setter Property="Foreground" Value="{StaticResource TextBrush}" />
            <Setter Property="Margin" Value="0,0,0,6" />
        </Style>

        <Style x:Key="SectionTitleStyle" TargetType="TextBlock">
            <Setter Property="FontSize" Value="18" />
            <Setter Property="FontWeight" Value="SemiBold" />
            <Setter Property="Foreground" Value="{StaticResource TextBrush}" />
            <Setter Property="Margin" Value="0,0,0,6" />
        </Style>

        <Style x:Key="DescriptionStyle" TargetType="TextBlock">
            <Setter Property="FontSize" Value="13" />
            <Setter Property="Foreground" Value="{StaticResource MutedTextBrush}" />
            <Setter Property="TextWrapping" Value="Wrap" />
            <Setter Property="LineHeight" Value="20" />
        </Style>

        <Style x:Key="BaseButtonStyle" TargetType="Button">
            <Setter Property="MinHeight" Value="38" />
            <Setter Property="Padding" Value="18,8" />
            <Setter Property="Margin" Value="0,10,10,0" />
            <Setter Property="BorderThickness" Value="0" />
            <Setter Property="Cursor" Value="Hand" />
            <Setter Property="FontWeight" Value="SemiBold" />
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="Button">
                        <Border x:Name="ButtonBorder"
                                Background="{TemplateBinding Background}"
                                BorderBrush="{TemplateBinding BorderBrush}"
                                BorderThickness="{TemplateBinding BorderThickness}"
                                CornerRadius="8"
                                Padding="{TemplateBinding Padding}">
                            <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center" />
                        </Border>
                        <ControlTemplate.Triggers>
                            <Trigger Property="IsMouseOver" Value="True">
                                <Setter TargetName="ButtonBorder" Property="Opacity" Value="0.88" />
                            </Trigger>
                            <Trigger Property="IsPressed" Value="True">
                                <Setter TargetName="ButtonBorder" Property="Opacity" Value="0.72" />
                            </Trigger>
                            <Trigger Property="IsEnabled" Value="False">
                                <Setter TargetName="ButtonBorder" Property="Opacity" Value="0.45" />
                            </Trigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>

        <Style x:Key="PrimaryButtonStyle" TargetType="Button" BasedOn="{StaticResource BaseButtonStyle}">
            <Setter Property="Background" Value="{StaticResource PrimaryBrush}" />
            <Setter Property="Foreground" Value="White" />
        </Style>

        <Style x:Key="SecondaryButtonStyle" TargetType="Button" BasedOn="{StaticResource BaseButtonStyle}">
            <Setter Property="Background" Value="#EFF4FA" />
            <Setter Property="Foreground" Value="{StaticResource TextBrush}" />
            <Setter Property="BorderBrush" Value="{StaticResource BorderBrush}" />
            <Setter Property="BorderThickness" Value="1" />
        </Style>

        <Style x:Key="DangerButtonStyle" TargetType="Button" BasedOn="{StaticResource BaseButtonStyle}">
            <Setter Property="Background" Value="{StaticResource DangerBrush}" />
            <Setter Property="Foreground" Value="White" />
        </Style>

        <Style x:Key="InputStyle" TargetType="TextBox">
            <Setter Property="MinHeight" Value="38" />
            <Setter Property="Padding" Value="10,7" />
            <Setter Property="VerticalContentAlignment" Value="Center" />
            <Setter Property="Background" Value="White" />
            <Setter Property="BorderBrush" Value="#CBD5E1" />
            <Setter Property="BorderThickness" Value="1" />
        </Style>

        <Style TargetType="ComboBox">
            <Setter Property="MinHeight" Value="38" />
            <Setter Property="Padding" Value="10,6" />
            <Setter Property="VerticalContentAlignment" Value="Center" />
        </Style>

        <Style TargetType="CheckBox">
            <Setter Property="Foreground" Value="{StaticResource TextBrush}" />
            <Setter Property="VerticalContentAlignment" Value="Center" />
            <Setter Property="Margin" Value="0,10,0,0" />
        </Style>
    </Application.Resources>
</Application>