MainWindow.xaml

<Window x:Class="GraTechCommander.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:vm="clr-namespace:GraTechCommander.ViewModels"
        Title="🔥 GraTech Commander - سليمان الشمري" 
        Height="900" Width="1500"
        MinHeight="700" MinWidth="1100"
        WindowStartupLocation="CenterScreen"
        WindowStyle="None"
        AllowsTransparency="True"
        Background="Transparent"
        MouseLeftButtonDown="Window_MouseLeftButtonDown">

    <Window.DataContext>
        <vm:MainViewModel/>
    </Window.DataContext>

    <Window.Resources>
        <!-- Colors - Modern Dark Theme -->
        <SolidColorBrush x:Key="Purple" Color="#8B5CF6"/>
        <SolidColorBrush x:Key="PurpleGlow" Color="#A78BFA"/>
        <SolidColorBrush x:Key="Pink" Color="#EC4899"/>
        <SolidColorBrush x:Key="Green" Color="#10B981"/>
        <SolidColorBrush x:Key="Cyan" Color="#22D3EE"/>
        <SolidColorBrush x:Key="Orange" Color="#F59E0B"/>
        <SolidColorBrush x:Key="Red" Color="#EF4444"/>
        <SolidColorBrush x:Key="BgDark" Color="#09090b"/>
        <SolidColorBrush x:Key="BgCard" Color="#18181b"/>
        <SolidColorBrush x:Key="BgHover" Color="#1f1f23"/>
        <SolidColorBrush x:Key="Border" Color="#27272a"/>
        <SolidColorBrush x:Key="BorderLight" Color="#3f3f46"/>
        <SolidColorBrush x:Key="TextW" Color="#fafafa"/>
        <SolidColorBrush x:Key="TextG" Color="#a1a1aa"/>
        <SolidColorBrush x:Key="TextMuted" Color="#71717a"/>

        <!-- Gradient Brushes -->
        <LinearGradientBrush x:Key="GradientPurple" StartPoint="0,0" EndPoint="1,1">
            <GradientStop Color="#8B5CF6" Offset="0"/>
            <GradientStop Color="#EC4899" Offset="1"/>
        </LinearGradientBrush>
        
        <LinearGradientBrush x:Key="GradientCyan" StartPoint="0,0" EndPoint="1,1">
            <GradientStop Color="#22D3EE" Offset="0"/>
            <GradientStop Color="#10B981" Offset="1"/>
        </LinearGradientBrush>

        <!-- Modern Button Style -->
        <Style x:Key="Btn" TargetType="Button">
            <Setter Property="Background" Value="{StaticResource GradientPurple}"/>
            <Setter Property="Foreground" Value="White"/>
            <Setter Property="BorderThickness" Value="0"/>
            <Setter Property="Padding" Value="20,12"/>
            <Setter Property="Cursor" Value="Hand"/>
            <Setter Property="FontSize" Value="14"/>
            <Setter Property="FontWeight" Value="SemiBold"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="Button">
                        <Border x:Name="bd" Background="{TemplateBinding Background}" 
                                CornerRadius="12" Padding="{TemplateBinding Padding}">
                            <Border.Effect>
                                <DropShadowEffect Color="#8B5CF6" BlurRadius="20" Opacity="0.3" ShadowDepth="0"/>
                            </Border.Effect>
                            <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"/>
                        </Border>
                        <ControlTemplate.Triggers>
                            <Trigger Property="IsMouseOver" Value="True">
                                <Setter TargetName="bd" Property="Effect">
                                    <Setter.Value>
                                        <DropShadowEffect Color="#8B5CF6" BlurRadius="30" Opacity="0.5" ShadowDepth="0"/>
                                    </Setter.Value>
                                </Setter>
                            </Trigger>
                            <Trigger Property="IsEnabled" Value="False">
                                <Setter Property="Opacity" Value="0.5"/>
                            </Trigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>

        <!-- Ghost Button Style -->
        <Style x:Key="BtnGhost" TargetType="Button">
            <Setter Property="Background" Value="Transparent"/>
            <Setter Property="Foreground" Value="{StaticResource TextG}"/>
            <Setter Property="BorderThickness" Value="0"/>
            <Setter Property="Padding" Value="12,8"/>
            <Setter Property="Cursor" Value="Hand"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="Button">
                        <Border x:Name="bd" Background="{TemplateBinding Background}" 
                                CornerRadius="8" Padding="{TemplateBinding Padding}">
                            <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"/>
                        </Border>
                        <ControlTemplate.Triggers>
                            <Trigger Property="IsMouseOver" Value="True">
                                <Setter TargetName="bd" Property="Background" Value="{StaticResource BgHover}"/>
                                <Setter Property="Foreground" Value="{StaticResource TextW}"/>
                            </Trigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>

        <!-- Icon Button Style -->
        <Style x:Key="BtnIcon" TargetType="Button">
            <Setter Property="Background" Value="{StaticResource BgCard}"/>
            <Setter Property="Foreground" Value="{StaticResource TextG}"/>
            <Setter Property="BorderThickness" Value="1"/>
            <Setter Property="BorderBrush" Value="{StaticResource Border}"/>
            <Setter Property="Width" Value="40"/>
            <Setter Property="Height" Value="40"/>
            <Setter Property="Cursor" Value="Hand"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="Button">
                        <Border x:Name="bd" Background="{TemplateBinding Background}" 
                                BorderBrush="{TemplateBinding BorderBrush}"
                                BorderThickness="{TemplateBinding BorderThickness}"
                                CornerRadius="10">
                            <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"/>
                        </Border>
                        <ControlTemplate.Triggers>
                            <Trigger Property="IsMouseOver" Value="True">
                                <Setter TargetName="bd" Property="Background" Value="{StaticResource BgHover}"/>
                                <Setter TargetName="bd" Property="BorderBrush" Value="{StaticResource Purple}"/>
                                <Setter Property="Foreground" Value="{StaticResource Purple}"/>
                            </Trigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>

        <!-- Modern TextBox Style -->
        <Style x:Key="Input" TargetType="TextBox">
            <Setter Property="Background" Value="{StaticResource BgCard}"/>
            <Setter Property="Foreground" Value="{StaticResource TextW}"/>
            <Setter Property="BorderBrush" Value="{StaticResource Border}"/>
            <Setter Property="BorderThickness" Value="1"/>
            <Setter Property="Padding" Value="16,14"/>
            <Setter Property="FontSize" Value="15"/>
            <Setter Property="CaretBrush" Value="{StaticResource Purple}"/>
            <Setter Property="SelectionBrush" Value="{StaticResource Purple}"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="TextBox">
                        <Border x:Name="bd" Background="{TemplateBinding Background}" 
                                BorderBrush="{TemplateBinding BorderBrush}"
                                BorderThickness="{TemplateBinding BorderThickness}"
                                CornerRadius="12">
                            <ScrollViewer x:Name="PART_ContentHost" Margin="{TemplateBinding Padding}"/>
                        </Border>
                        <ControlTemplate.Triggers>
                            <Trigger Property="IsFocused" Value="True">
                                <Setter TargetName="bd" Property="BorderBrush" Value="{StaticResource Purple}"/>
                                <Setter TargetName="bd" Property="Effect">
                                    <Setter.Value>
                                        <DropShadowEffect Color="#8B5CF6" BlurRadius="15" Opacity="0.2" ShadowDepth="0"/>
                                    </Setter.Value>
                                </Setter>
                            </Trigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>

        <!-- Modern CheckBox Style -->
        <Style x:Key="ModernCheckBox" TargetType="CheckBox">
            <Setter Property="Foreground" Value="{StaticResource TextG}"/>
            <Setter Property="FontSize" Value="13"/>
            <Setter Property="Cursor" Value="Hand"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="CheckBox">
                        <StackPanel Orientation="Horizontal">
                            <Border x:Name="checkBorder" Width="22" Height="22" 
                                    Background="{StaticResource BgCard}" 
                                    BorderBrush="{StaticResource Border}"
                                    BorderThickness="2" CornerRadius="6" Margin="0,0,10,0">
                                <TextBlock x:Name="checkMark" Text="✓" FontSize="14" 
                                           Foreground="White" HorizontalAlignment="Center" 
                                           VerticalAlignment="Center" Visibility="Collapsed"/>
                            </Border>
                            <ContentPresenter VerticalAlignment="Center"/>
                        </StackPanel>
                        <ControlTemplate.Triggers>
                            <Trigger Property="IsChecked" Value="True">
                                <Setter TargetName="checkBorder" Property="Background" Value="{StaticResource Purple}"/>
                                <Setter TargetName="checkBorder" Property="BorderBrush" Value="{StaticResource Purple}"/>
                                <Setter TargetName="checkMark" Property="Visibility" Value="Visible"/>
                            </Trigger>
                            <Trigger Property="IsMouseOver" Value="True">
                                <Setter TargetName="checkBorder" Property="BorderBrush" Value="{StaticResource PurpleGlow}"/>
                            </Trigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>

        <!-- Modern ComboBox Style -->
        <Style x:Key="ModernComboBox" TargetType="ComboBox">
            <Setter Property="Background" Value="{StaticResource BgCard}"/>
            <Setter Property="Foreground" Value="{StaticResource TextW}"/>
            <Setter Property="BorderBrush" Value="{StaticResource Border}"/>
            <Setter Property="BorderThickness" Value="1"/>
            <Setter Property="Padding" Value="14,10"/>
            <Setter Property="FontSize" Value="13"/>
        </Style>
    </Window.Resources>

    <!-- Main Container with Border -->
    <Border Background="{StaticResource BgDark}" CornerRadius="16" BorderBrush="{StaticResource Border}" BorderThickness="1">
        <Border.Effect>
            <DropShadowEffect Color="Black" BlurRadius="40" Opacity="0.5" ShadowDepth="0"/>
        </Border.Effect>
        
        <Grid>
            <Grid.RowDefinitions>
                <RowDefinition Height="Auto"/>
                <RowDefinition Height="*"/>
            </Grid.RowDefinitions>

            <!-- Custom Title Bar -->
            <Border Grid.Row="0" Background="{StaticResource BgCard}" CornerRadius="16,16,0,0" Padding="16,12">
                <Grid>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="Auto"/>
                        <ColumnDefinition Width="*"/>
                        <ColumnDefinition Width="Auto"/>
                    </Grid.ColumnDefinitions>

                    <!-- Logo -->
                    <StackPanel Grid.Column="0" Orientation="Horizontal" VerticalAlignment="Center">
                        <Border Width="36" Height="36" CornerRadius="10" Background="{StaticResource GradientPurple}">
                            <TextBlock Text="🔥" FontSize="18" HorizontalAlignment="Center" VerticalAlignment="Center"/>
                        </Border>
                        <StackPanel Margin="12,0,0,0" VerticalAlignment="Center">
                            <TextBlock Text="GraTech Commander" FontSize="16" FontWeight="Bold" Foreground="{StaticResource TextW}"/>
                            <TextBlock Text="سليمان نزال الشمري • @Grar00t" FontSize="11" Foreground="{StaticResource TextMuted}"/>
                        </StackPanel>
                    </StackPanel>

                    <!-- Status -->
                    <StackPanel Grid.Column="1" Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Center">
                        <Border Background="{StaticResource BgHover}" CornerRadius="20" Padding="12,6">
                            <StackPanel Orientation="Horizontal">
                                <Ellipse Width="8" Height="8" Fill="{StaticResource Green}" Margin="0,0,8,0"/>
                                <TextBlock Text="{Binding StatusMessage}" FontSize="12" Foreground="{StaticResource TextG}"/>
                            </StackPanel>
                        </Border>
                    </StackPanel>

                    <!-- Window Controls -->
                    <StackPanel Grid.Column="2" Orientation="Horizontal">
                        <Button Content="─" Style="{StaticResource BtnGhost}" Click="Minimize_Click" FontSize="16"/>
                        <Button Content="□" Style="{StaticResource BtnGhost}" Click="Maximize_Click" FontSize="14" Margin="4,0"/>
                        <Button x:Name="CloseBtn" Content="✕" Click="Close_Click" FontSize="14"
                                Background="Transparent" Foreground="{StaticResource TextG}" 
                                BorderThickness="0" Padding="12,8" Cursor="Hand">
                            <Button.Template>
                                <ControlTemplate TargetType="Button">
                                    <Border x:Name="bd" Background="{TemplateBinding Background}" CornerRadius="8" Padding="{TemplateBinding Padding}">
                                        <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"/>
                                    </Border>
                                    <ControlTemplate.Triggers>
                                        <Trigger Property="IsMouseOver" Value="True">
                                            <Setter TargetName="bd" Property="Background" Value="{StaticResource Red}"/>
                                            <Setter Property="Foreground" Value="White"/>
                                        </Trigger>
                                    </ControlTemplate.Triggers>
                                </ControlTemplate>
                            </Button.Template>
                        </Button>
                    </StackPanel>
                </Grid>
            </Border>

            <!-- Main Content -->
            <Grid Grid.Row="1">
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="300"/>
                    <ColumnDefinition Width="*"/>
                </Grid.ColumnDefinitions>

                <!-- Sidebar -->
                <Border Grid.Column="0" Background="{StaticResource BgCard}" Margin="0,0,1,0">
                    <Grid>
                        <Grid.RowDefinitions>
                            <RowDefinition Height="Auto"/>
                            <RowDefinition Height="*"/>
                            <RowDefinition Height="Auto"/>
                        </Grid.RowDefinitions>

                        <!-- New Chat Button -->
                        <Button Grid.Row="0" Content="➕ محادثة جديدة" Style="{StaticResource Btn}" 
                                Margin="16,16,16,8" Command="{Binding NewConversationCommand}"/>

                        <!-- Conversations List -->
                        <ScrollViewer Grid.Row="1" VerticalScrollBarVisibility="Auto" Margin="8,8,8,0">
                            <ItemsControl ItemsSource="{Binding Conversations}">
                                <ItemsControl.ItemTemplate>
                                    <DataTemplate>
                                        <Border x:Name="convBorder" Background="Transparent" CornerRadius="10" 
                                                Margin="4,2" Padding="14,12" Cursor="Hand"
                                                MouseLeftButtonDown="Conversation_Click">
                                            <Grid>
                                                <Grid.ColumnDefinitions>
                                                    <ColumnDefinition Width="*"/>
                                                    <ColumnDefinition Width="Auto"/>
                                                </Grid.ColumnDefinitions>
                                                <StackPanel Grid.Column="0">
                                                    <TextBlock Text="{Binding Title}" Foreground="{StaticResource TextW}" 
                                                               FontSize="14" FontWeight="Medium" TextTrimming="CharacterEllipsis"/>
                                                    <TextBlock Text="{Binding Model}" FontSize="11" 
                                                               Foreground="{StaticResource TextMuted}" Margin="0,4,0,0"/>
                                                </StackPanel>
                                                <TextBlock Grid.Column="1" Text="💬" FontSize="14" VerticalAlignment="Center"
                                                           Foreground="{StaticResource TextMuted}"/>
                                            </Grid>
                                        </Border>
                                        <DataTemplate.Triggers>
                                            <DataTrigger Binding="{Binding IsSelected, RelativeSource={RelativeSource AncestorType=ListBoxItem}}" Value="True">
                                                <Setter TargetName="convBorder" Property="Background" Value="{StaticResource Border}"/>
                                            </DataTrigger>
                                            <Trigger SourceName="convBorder" Property="IsMouseOver" Value="True">
                                                <Setter TargetName="convBorder" Property="Background" Value="{StaticResource BgHover}"/>
                                            </Trigger>
                                        </DataTemplate.Triggers>
                                    </DataTemplate>
                                </ItemsControl.ItemTemplate>
                            </ItemsControl>
                        </ScrollViewer>

                        <!-- Model Settings -->
                        <Border Grid.Row="2" Background="{StaticResource BgDark}" Margin="12" Padding="16" CornerRadius="14">
                            <StackPanel>
                                <!-- Model Selector -->
                                <TextBlock Text="🤖 النموذج" FontSize="12" FontWeight="SemiBold" 
                                           Foreground="{StaticResource TextW}" Margin="0,0,0,10"/>
                                <ComboBox ItemsSource="{Binding AvailableModels}" 
                                          SelectedValue="{Binding SelectedModel}"
                                          SelectedValuePath="Id" DisplayMemberPath="Name"
                                          Style="{StaticResource ModernComboBox}"/>
                                
                                <!-- Options -->
                                <StackPanel Margin="0,16,0,0">
                                    <CheckBox Content="توجيه ذكي 🧠" IsChecked="{Binding UseSmartRouting}"
                                              Style="{StaticResource ModernCheckBox}" Margin="0,0,0,10"/>
                                    
                                    <Border Background="{StaticResource BgCard}" CornerRadius="10" Padding="12" Margin="0,4,0,0">
                                        <StackPanel>
                                            <CheckBox Content="🦙 Llama محلي" IsChecked="{Binding UseLlamaLocal}"
                                                      Style="{StaticResource ModernCheckBox}"/>
                                            <TextBlock Text="خصوصية 100% - بدون إنترنت" FontSize="10" 
                                                       Foreground="{StaticResource Green}" Margin="32,4,0,0"/>
                                        </StackPanel>
                                    </Border>
                                </StackPanel>

                                <!-- Quick Stats -->
                                <Border Background="{StaticResource BgCard}" CornerRadius="10" Padding="12" Margin="0,16,0,0">
                                    <Grid>
                                        <Grid.ColumnDefinitions>
                                            <ColumnDefinition Width="*"/>
                                            <ColumnDefinition Width="*"/>
                                        </Grid.ColumnDefinitions>
                                        <StackPanel Grid.Column="0" HorizontalAlignment="Center">
                                            <TextBlock Text="{Binding Conversations.Count}" FontSize="20" FontWeight="Bold" 
                                                       Foreground="{StaticResource Purple}" HorizontalAlignment="Center"/>
                                            <TextBlock Text="محادثة" FontSize="10" Foreground="{StaticResource TextMuted}" 
                                                       HorizontalAlignment="Center"/>
                                        </StackPanel>
                                        <StackPanel Grid.Column="1" HorizontalAlignment="Center">
                                            <TextBlock Text="{Binding Messages.Count}" FontSize="20" FontWeight="Bold" 
                                                       Foreground="{StaticResource Cyan}" HorizontalAlignment="Center"/>
                                            <TextBlock Text="رسالة" FontSize="10" Foreground="{StaticResource TextMuted}" 
                                                       HorizontalAlignment="Center"/>
                                        </StackPanel>
                                    </Grid>
                                </Border>
                            </StackPanel>
                        </Border>
                    </Grid>
                </Border>

                <!-- Chat Area -->
                <Grid Grid.Column="1" Background="{StaticResource BgDark}">
                    <Grid.RowDefinitions>
                        <RowDefinition Height="*"/>
                        <RowDefinition Height="Auto"/>
                        <RowDefinition Height="Auto"/>
                    </Grid.RowDefinitions>

                    <!-- Messages -->
                    <ScrollViewer Grid.Row="0" VerticalScrollBarVisibility="Auto" Padding="24">
                        <ItemsControl ItemsSource="{Binding Messages}">
                            <ItemsControl.ItemTemplate>
                                <DataTemplate>
                                    <Border Margin="0,8" Padding="18,14" CornerRadius="16" MaxWidth="750">
                                        <Border.Style>
                                            <Style TargetType="Border">
                                                <Setter Property="Background" Value="{StaticResource BgCard}"/>
                                                <Setter Property="HorizontalAlignment" Value="Left"/>
                                                <Style.Triggers>
                                                    <DataTrigger Binding="{Binding Role}" Value="user">
                                                        <Setter Property="Background" Value="{StaticResource GradientPurple}"/>
                                                        <Setter Property="HorizontalAlignment" Value="Right"/>
                                                    </DataTrigger>
                                                </Style.Triggers>
                                            </Style>
                                        </Border.Style>
                                        <StackPanel>
                                            <StackPanel Orientation="Horizontal" Margin="0,0,0,8">
                                                <TextBlock FontSize="12" FontWeight="SemiBold">
                                                    <TextBlock.Style>
                                                        <Style TargetType="TextBlock">
                                                            <Setter Property="Text" Value="🔥 GraTech AI"/>
                                                            <Setter Property="Foreground" Value="{StaticResource Pink}"/>
                                                            <Style.Triggers>
                                                                <DataTrigger Binding="{Binding Role}" Value="user">
                                                                    <Setter Property="Text" Value="👤 أنت"/>
                                                                    <Setter Property="Foreground" Value="White"/>
                                                                </DataTrigger>
                                                            </Style.Triggers>
                                                        </Style>
                                                    </TextBlock.Style>
                                                </TextBlock>
                                                <Border Background="{StaticResource BgHover}" CornerRadius="6" Padding="6,2" Margin="10,0,0,0">
                                                    <TextBlock Text="{Binding Model}" FontSize="10" Foreground="{StaticResource TextMuted}"/>
                                                </Border>
                                            </StackPanel>
                                            <TextBox Text="{Binding Content, Mode=OneWay}" 
                                                     IsReadOnly="True" TextWrapping="Wrap"
                                                     Background="Transparent" BorderThickness="0"
                                                     Foreground="{StaticResource TextW}" FontSize="15"
                                                     Cursor="IBeam" FontFamily="Segoe UI"/>
                                        </StackPanel>
                                    </Border>
                                </DataTemplate>
                            </ItemsControl.ItemTemplate>
                        </ItemsControl>
                    </ScrollViewer>

                    <!-- Terminal -->
                    <Border Grid.Row="1" Background="#0a0a0a" CornerRadius="14" Margin="24,0,24,12"
                            MaxHeight="220" Visibility="{Binding TerminalVisibility}">
                        <Border.Effect>
                            <DropShadowEffect Color="#10B981" BlurRadius="20" Opacity="0.1" ShadowDepth="0"/>
                        </Border.Effect>
                        <Grid>
                            <Grid.RowDefinitions>
                                <RowDefinition Height="Auto"/>
                                <RowDefinition Height="*"/>
                            </Grid.RowDefinitions>
                            <Border Grid.Row="0" Background="#111" Padding="14,10" CornerRadius="14,14,0,0">
                                <Grid>
                                    <StackPanel Orientation="Horizontal">
                                        <Ellipse Width="10" Height="10" Fill="{StaticResource Green}"/>
                                        <TextBlock Text="⚡ Terminal" FontSize="13" Foreground="{StaticResource Green}" 
                                                   Margin="10,0,0,0" FontWeight="SemiBold"/>
                                    </StackPanel>
                                    <StackPanel Orientation="Horizontal" HorizontalAlignment="Right">
                                        <Button Content="🗑️" Style="{StaticResource BtnGhost}" Command="{Binding ClearTerminalCommand}" FontSize="12"/>
                                        <Button Content="✕" Style="{StaticResource BtnGhost}" Command="{Binding ToggleTerminalCommand}" FontSize="14"/>
                                    </StackPanel>
                                </Grid>
                            </Border>
                            <ScrollViewer Grid.Row="1" VerticalScrollBarVisibility="Auto" Padding="14">
                                <TextBox Text="{Binding TerminalOutput}" IsReadOnly="True"
                                         Background="Transparent" BorderThickness="0"
                                         Foreground="{StaticResource Green}" FontFamily="Cascadia Code, Consolas"
                                         FontSize="13" TextWrapping="Wrap" Cursor="IBeam"/>
                            </ScrollViewer>
                        </Grid>
                    </Border>

                    <!-- Input Area -->
                    <Border Grid.Row="2" Background="{StaticResource BgCard}" CornerRadius="16" 
                            Margin="24,0,24,24" Padding="8">
                        <Border.Effect>
                            <DropShadowEffect Color="Black" BlurRadius="20" Opacity="0.3" ShadowDepth="0"/>
                        </Border.Effect>
                        <Grid>
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="Auto"/>
                                <ColumnDefinition Width="*"/>
                                <ColumnDefinition Width="Auto"/>
                            </Grid.ColumnDefinitions>
                            
                            <!-- Tools -->
                            <StackPanel Grid.Column="0" Orientation="Horizontal" Margin="4,0">
                                <Button Content="⚡" Style="{StaticResource BtnIcon}" Command="{Binding ToggleTerminalCommand}" 
                                        ToolTip="Terminal"/>
                                <Button Content="📎" Style="{StaticResource BtnIcon}" Margin="4,0" ToolTip="إرفاق ملف"/>
                            </StackPanel>
                            
                            <!-- Input -->
                            <TextBox Grid.Column="1" Style="{StaticResource Input}"
                                     Text="{Binding UserInput, UpdateSourceTrigger=PropertyChanged}"
                                     Background="Transparent" BorderThickness="0"
                                     AcceptsReturn="False" TextWrapping="Wrap" MaxHeight="120"
                                     VerticalContentAlignment="Center">
                                <TextBox.InputBindings>
                                    <KeyBinding Key="Return" Command="{Binding SendMessageCommand}"/>
                                </TextBox.InputBindings>
                            </TextBox>
                            
                            <!-- Send Button -->
                            <Button Grid.Column="2" Content="إرسال ➤" Style="{StaticResource Btn}"
                                    Command="{Binding SendMessageCommand}"
                                    IsEnabled="{Binding CanSend}" Margin="8,0,4,0"/>
                        </Grid>
                    </Border>
                </Grid>
            </Grid>

            <!-- Loading Overlay -->
            <Border Grid.RowSpan="2" Background="#E6000000" CornerRadius="16"
                    Visibility="{Binding LoadingVisibility}">
                <StackPanel VerticalAlignment="Center" HorizontalAlignment="Center">
                    <Border Width="80" Height="80" CornerRadius="20" Background="{StaticResource GradientPurple}">
                        <Border.Effect>
                            <DropShadowEffect Color="#8B5CF6" BlurRadius="40" Opacity="0.5" ShadowDepth="0"/>
                        </Border.Effect>
                        <TextBlock Text="🔥" FontSize="36" HorizontalAlignment="Center" VerticalAlignment="Center"/>
                    </Border>
                    <TextBlock Text="{Binding StatusMessage}" FontSize="16" FontWeight="SemiBold"
                               Foreground="{StaticResource TextW}" Margin="0,20,0,0" HorizontalAlignment="Center"/>
                    <TextBlock Text="جاري المعالجة..." FontSize="12" 
                               Foreground="{StaticResource TextMuted}" Margin="0,8,0,0" HorizontalAlignment="Center"/>
                </StackPanel>
            </Border>
        </Grid>
    </Border>
</Window>