---

<Window x:Class="KeyboardTrainer.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="Клавиатурный тренажёр" Height="650" Width="1100"
        WindowStartupLocation="CenterScreen"
        KeyDown="Window_KeyDown" KeyUp="Window_KeyUp">
    
    <Grid Margin="10">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>

        <!-- Верхняя панель со статистикой -->
        <StackPanel Grid.Row="0" Margin="0,0,0,10">
            <StackPanel Orientation="Horizontal" Margin="0,5">
                <TextBlock Text="Скорость:" FontWeight="Bold" Width="80"/>
                <TextBlock x:Name="txtSpeed" Text="0 зн/мин" Width="120"/>
                <TextBlock Text="Ошибки:" FontWeight="Bold" Width="80" Margin="30,0,0,0"/>
                <TextBlock x:Name="txtErrors" Text="0" Width="80"/>
            </StackPanel>
            
            <StackPanel Orientation="Horizontal" Margin="0,5">
                <TextBlock Text="Уровень сложности:" VerticalAlignment="Center" Margin="0,0,10,0"/>
                <ComboBox x:Name="cmbDifficulty" Width="120" SelectedIndex="1">
                    <ComboBoxItem Content="Easy"/>
                    <ComboBoxItem Content="Medium"/>
                    <ComboBoxItem Content="Hard"/>
                </ComboBox>
                <Button x:Name="btnStart" Content="Старт" Width="100" Margin="20,0,0,0" Click="BtnStart_Click"/>
            </StackPanel>
            
            <StackPanel Orientation="Horizontal" Margin="0,10">
                <TextBlock Text="Введите строку:" FontWeight="Bold" VerticalAlignment="Center" Margin="0,0,10,0"/>
                <TextBox x:Name="txtUserInput" Width="400" IsEnabled="False" FontSize="14" 
                         TextChanged="TxtUserInput_TextChanged"/>
            </StackPanel>
            
            <Border Background="LightYellow" Padding="10" CornerRadius="5" Margin="0,5">
                <TextBlock x:Name="txtTargetText" Text="Нажмите 'Старт'" FontSize="14" FontFamily="Consolas"/>
            </Border>
        </StackPanel>

        <!-- Клавиатура -->
        <ScrollViewer Grid.Row="2" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Disabled">
            <StackPanel x:Name="keyboardPanel" Margin="0,10"/>
        </ScrollViewer>
    </Grid>
</Window>