MainWindow.xaml

<Window x:Class="Aurelius.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:Aurelius"
        mc:Ignorable="d"
        Title="Aurelius - Stock Analysis Platform" 
        Height="800" 
        Width="1200"
        MinHeight="600"
        MinWidth="800"
        WindowStartupLocation="CenterScreen">
    
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
            <RowDefinition Height="Auto"/>
        </Grid.RowDefinitions>
        
        <!-- Menu Bar -->
        <Menu Grid.Row="0" Background="White" BorderBrush="LightGray" BorderThickness="0,0,0,1">
            <MenuItem Header="File">
                <MenuItem Header="New Portfolio"/>
                <MenuItem Header="Open"/>
                <MenuItem Header="Save"/>
                <Separator/>
                <MenuItem Header="Import Data"/>
                <MenuItem Header="Export Data"/>
                <Separator/>
                <MenuItem Header="Exit"/>
            </MenuItem>
            <MenuItem Header="View">
                <MenuItem Header="Dashboard"/>
                <MenuItem Header="Stock Search"/>
                <MenuItem Header="Portfolio"/>
                <MenuItem Header="AI Assistant"/>
                <Separator/>
                <MenuItem Header="Refresh Data"/>
                <MenuItem Header="Full Screen" InputGestureText="F11"/>
            </MenuItem>
            <MenuItem Header="Tools">
                <MenuItem Header="Chart Analysis"/>
                <MenuItem Header="Screener"/>
                <MenuItem Header="News Scanner"/>
                <Separator/>
                <MenuItem Header="Settings"/>
            </MenuItem>
            <MenuItem Header="Help">
                <MenuItem Header="Documentation"/>
                <MenuItem Header="API References"/>
                <Separator/>
                <MenuItem Header="About Aurelius"/>
            </MenuItem>
        </Menu>
        
        <!-- Main Content -->
        <TabControl Grid.Row="1" Margin="5" Background="White">
            <!-- Dashboard Tab -->
            <TabItem Header="Dashboard">
                <local:DashboardView/>
            </TabItem>
            
            <!-- Stock Search Tab -->
            <TabItem Header="Stock Search">
                <local:StockSearchView/>
            </TabItem>
            
            <!-- Portfolio Tab -->
            <TabItem Header="Portfolio">
                <local:PortfolioView/>
            </TabItem>
            
            <!-- AI Assistant Tab -->
            <TabItem Header="AI Assistant">
                <local:AIAssistantView/>
            </TabItem>
            
            <!-- Settings Tab -->
            <TabItem Header="Settings">
                <local:SettingsView/>
            </TabItem>
        </TabControl>
        
        <!-- Status Bar -->
        <Grid Grid.Row="2" Background="LightGray" Height="25">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="Auto"/>
                <ColumnDefinition Width="*"/>
                <ColumnDefinition Width="Auto"/>
                <ColumnDefinition Width="Auto"/>
            </Grid.ColumnDefinitions>
            
            <!-- Market Status -->
            <TextBlock Grid.Column="0" 
                       Text="Market Open | S&amp;P 500: +0.35% | NASDAQ: +0.78% | DOW: -0.12%" 
                       Margin="10,0,0,0" 
                       VerticalAlignment="Center"/>
            
            <!-- Data Refresh Indicator -->
            <TextBlock Grid.Column="2" 
                       Text="Last updated: 5:32 PM" 
                       Margin="0,0,10,0" 
                       VerticalAlignment="Center"/>
            
            <!-- Clock -->
            <TextBlock Name="ClockDisplay" 
                       Grid.Column="3" 
                       Text="12:00:00 PM" 
                       Margin="0,0,10,0" 
                       VerticalAlignment="Center"/>
        </Grid>
    </Grid>
</Window>