shavrinwpf/ComputerShopWpf/Styles/AppStyles.xaml

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <Color x:Key="PrimaryColor">#24435C</Color>
    <Color x:Key="PrimaryDarkColor">#1A2F42</Color>
    <Color x:Key="AccentColor">#2F7D6D</Color>
    <Color x:Key="AccentHoverColor">#25695B</Color>
    <Color x:Key="BackgroundColor">#EEF2F5</Color>
    <Color x:Key="PanelColor">#FFFFFF</Color>
    <Color x:Key="TextColor">#1F2933</Color>
    <Color x:Key="MutedTextColor">#5A6875</Color>
    <Color x:Key="BorderColor">#C9D3DC</Color>
    <Color x:Key="ErrorColor">#C43D3D</Color>

    <SolidColorBrush x:Key="PrimaryBrush" Color="{StaticResource PrimaryColor}" />
    <SolidColorBrush x:Key="PrimaryDarkBrush" Color="{StaticResource PrimaryDarkColor}" />
    <SolidColorBrush x:Key="AccentBrush" Color="{StaticResource AccentColor}" />
    <SolidColorBrush x:Key="AccentHoverBrush" Color="{StaticResource AccentHoverColor}" />
    <SolidColorBrush x:Key="BackgroundBrush" Color="{StaticResource BackgroundColor}" />
    <SolidColorBrush x:Key="PanelBrush" Color="{StaticResource PanelColor}" />
    <SolidColorBrush x:Key="TextBrush" Color="{StaticResource TextColor}" />
    <SolidColorBrush x:Key="MutedTextBrush" Color="{StaticResource MutedTextColor}" />
    <SolidColorBrush x:Key="BorderBrush" Color="{StaticResource BorderColor}" />
    <SolidColorBrush x:Key="ErrorBrush" Color="{StaticResource ErrorColor}" />

    <Style TargetType="Window">
        <Setter Property="FontFamily" Value="Segoe UI" />
        <Setter Property="FontSize" Value="14" />
        <Setter Property="Background" Value="{StaticResource BackgroundBrush}" />
    </Style>

    <Style TargetType="Page">
        <Setter Property="FontFamily" Value="Segoe UI" />
        <Setter Property="FontSize" Value="14" />
        <Setter Property="Background" Value="{StaticResource BackgroundBrush}" />
        <Setter Property="UseLayoutRounding" Value="True" />
    </Style>

    <Style TargetType="TextBlock">
        <Setter Property="Foreground" Value="{StaticResource TextBrush}" />
        <Setter Property="Margin" Value="0,0,0,6" />
    </Style>

    <Style x:Key="PageTitleStyle" TargetType="TextBlock" BasedOn="{StaticResource {x:Type TextBlock}}">
        <Setter Property="FontSize" Value="24" />
        <Setter Property="FontWeight" Value="SemiBold" />
        <Setter Property="Margin" Value="0,0,0,10" />
    </Style>

    <Style TargetType="TextBox">
        <Setter Property="Height" Value="34" />
        <Setter Property="Margin" Value="0,0,0,10" />
        <Setter Property="Padding" Value="8,4" />
        <Setter Property="Background" Value="White" />
        <Setter Property="BorderBrush" Value="{StaticResource BorderBrush}" />
        <Setter Property="BorderThickness" Value="1" />
        <Setter Property="VerticalContentAlignment" Value="Center" />
    </Style>

    <Style TargetType="PasswordBox">
        <Setter Property="Height" Value="34" />
        <Setter Property="Margin" Value="0,0,0,10" />
        <Setter Property="Padding" Value="8,4" />
        <Setter Property="Background" Value="White" />
        <Setter Property="BorderBrush" Value="{StaticResource BorderBrush}" />
        <Setter Property="BorderThickness" Value="1" />
        <Setter Property="VerticalContentAlignment" Value="Center" />
    </Style>

    <Style TargetType="ComboBox">
        <Setter Property="Height" Value="34" />
        <Setter Property="Margin" Value="0,0,0,10" />
        <Setter Property="Padding" Value="8,3" />
        <Setter Property="Background" Value="White" />
        <Setter Property="BorderBrush" Value="{StaticResource BorderBrush}" />
        <Setter Property="BorderThickness" Value="1" />
        <Setter Property="VerticalContentAlignment" Value="Center" />
    </Style>

    <Style TargetType="ComboBoxItem">
        <Setter Property="Padding" Value="8,5" />
        <Setter Property="Foreground" Value="{StaticResource TextBrush}" />
    </Style>

    <Style TargetType="Button">
        <Setter Property="Height" Value="34" />
        <Setter Property="MinWidth" Value="110" />
        <Setter Property="Margin" Value="0,0,10,8" />
        <Setter Property="Padding" Value="14,4" />
        <Setter Property="Background" Value="{StaticResource AccentBrush}" />
        <Setter Property="Foreground" Value="White" />
        <Setter Property="BorderThickness" Value="0" />
        <Setter Property="Cursor" Value="Hand" />
        <Setter Property="FontWeight" Value="SemiBold" />
        <Style.Triggers>
            <Trigger Property="IsMouseOver" Value="True">
                <Setter Property="Background" Value="{StaticResource AccentHoverBrush}" />
            </Trigger>
            <Trigger Property="IsEnabled" Value="False">
                <Setter Property="Background" Value="#B6C0C8" />
                <Setter Property="Foreground" Value="#F4F6F8" />
            </Trigger>
        </Style.Triggers>
    </Style>

    <Style x:Key="MenuButtonStyle" TargetType="Button" BasedOn="{StaticResource {x:Type Button}}">
        <Setter Property="Height" Value="42" />
        <Setter Property="MinWidth" Value="190" />
        <Setter Property="Margin" Value="0,0,0,10" />
        <Setter Property="HorizontalContentAlignment" Value="Left" />
        <Setter Property="Padding" Value="14,4" />
        <Setter Property="Background" Value="{StaticResource PrimaryBrush}" />
        <Setter Property="FontWeight" Value="Normal" />
        <Style.Triggers>
            <Trigger Property="IsMouseOver" Value="True">
                <Setter Property="Background" Value="{StaticResource PrimaryDarkBrush}" />
            </Trigger>
        </Style.Triggers>
    </Style>

    <Style TargetType="DataGrid">
        <Setter Property="AutoGenerateColumns" Value="False" />
        <Setter Property="IsReadOnly" Value="True" />
        <Setter Property="SelectionMode" Value="Single" />
        <Setter Property="SelectionUnit" Value="FullRow" />
        <Setter Property="Margin" Value="0,10,0,0" />
        <Setter Property="MinHeight" Value="280" />
        <Setter Property="GridLinesVisibility" Value="Horizontal" />
        <Setter Property="AlternatingRowBackground" Value="#F3F7FA" />
        <Setter Property="Background" Value="{StaticResource PanelBrush}" />
        <Setter Property="BorderBrush" Value="{StaticResource BorderBrush}" />
        <Setter Property="BorderThickness" Value="1" />
        <Setter Property="RowHeight" Value="32" />
        <Setter Property="HeadersVisibility" Value="Column" />
        <Setter Property="CanUserAddRows" Value="False" />
    </Style>

    <Style TargetType="DataGridColumnHeader">
        <Setter Property="Background" Value="#DDE7EE" />
        <Setter Property="Foreground" Value="{StaticResource TextBrush}" />
        <Setter Property="FontWeight" Value="SemiBold" />
        <Setter Property="Padding" Value="8,6" />
        <Setter Property="BorderBrush" Value="{StaticResource BorderBrush}" />
        <Setter Property="BorderThickness" Value="0,0,1,1" />
    </Style>
</ResourceDictionary>