diff --git a/InputDialog.cs b/InputDialog.cs
index 7be725f..e554287 100644
--- a/InputDialog.cs
+++ b/InputDialog.cs
@@ -17,20 +17,23 @@ namespace Microsoft.Windows.Controls
             {
                 Title = title,
                 Width = 400,
-                Height = 150,
+                Height = 200, // Aumentado para dar más espacio
                 WindowStartupLocation = WindowStartupLocation.CenterOwner,
                 Owner = Application.Current.MainWindow,
                 ResizeMode = ResizeMode.NoResize
             };
 
             var grid = new Grid { Margin = new Thickness(10) };
-            grid.RowDefinitions.Add(new RowDefinition { Height = GridLength.Auto });
-            grid.RowDefinitions.Add(new RowDefinition { Height = new GridLength(10) });
-            grid.RowDefinitions.Add(new RowDefinition { Height = GridLength.Auto });
+            grid.RowDefinitions.Add(new RowDefinition { Height = GridLength.Auto }); // Prompt
+            grid.RowDefinitions.Add(new RowDefinition { Height = new GridLength(10) }); // Spacing
+            grid.RowDefinitions.Add(new RowDefinition { Height = GridLength.Auto }); // TextBox
+            grid.RowDefinitions.Add(new RowDefinition { Height = new GridLength(20) }); // Spacing
+            grid.RowDefinitions.Add(new RowDefinition { Height = GridLength.Auto }); // Buttons
 
             var promptLabel = new TextBlock
             {
                 Text = promptText,
+                TextWrapping = TextWrapping.Wrap,
                 Margin = new Thickness(0, 0, 0, 5)
             };
             Grid.SetRow(promptLabel, 0);
@@ -38,15 +41,14 @@ namespace Microsoft.Windows.Controls
             var inputBox = new TextBox
             {
                 Text = defaultValue,
-                Margin = new Thickness(0)
+                Height = 23
             };
             Grid.SetRow(inputBox, 2);
 
             var buttonPanel = new StackPanel
             {
                 Orientation = Orientation.Horizontal,
-                HorizontalAlignment = HorizontalAlignment.Right,
-                Margin = new Thickness(0, 10, 0, 0)
+                HorizontalAlignment = HorizontalAlignment.Right
             };
             Grid.SetRow(buttonPanel, 4);
 
diff --git a/MainWindow.xaml b/MainWindow.xaml
index c16bc83..821639d 100644
--- a/MainWindow.xaml
+++ b/MainWindow.xaml
@@ -3,86 +3,87 @@
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:viewmodels="clr-namespace:DirectoryCreator.ViewModels" mc:Ignorable="d" Title="Crear Directorios Base"
-        Height="450" Width="700" WindowStartupLocation="CenterScreen" MinWidth="600" MinHeight="400">
+        Height="550" Width="800" WindowStartupLocation="CenterScreen" MinWidth="600" MinHeight="400">
 
     <Window.Icon>
         <BitmapImage UriSource="/Assets/app.png" />
     </Window.Icon>
 
     <Border BorderBrush="{DynamicResource BorderBrush}" BorderThickness="1" Margin="0">
-        <Grid Margin="20">
+        <Grid Margin="25">
             <Grid.RowDefinitions>
                 <RowDefinition Height="Auto" />
-                <RowDefinition Height="20" />
+                <RowDefinition Height="*" />
                 <RowDefinition Height="Auto" />
-                <RowDefinition Height="20" />
+                <RowDefinition Height="*" />
                 <RowDefinition Height="Auto" />
-                <RowDefinition Height="20" />
+                <RowDefinition Height="*" />
                 <RowDefinition Height="Auto" />
-                <RowDefinition Height="20" />
+                <RowDefinition Height="*" />
                 <RowDefinition Height="Auto" />
                 <RowDefinition Height="*" />
                 <RowDefinition Height="Auto" />
             </Grid.RowDefinitions>
 
             <!-- Configuration Section -->
-            <Border Grid.Row="0" BorderBrush="{DynamicResource BorderBrush}" BorderThickness="1" Padding="15">
+            <Border Grid.Row="0" BorderBrush="{DynamicResource BorderBrush}" BorderThickness="1" Padding="20" CornerRadius="4">
                 <DockPanel>
-                    <TextBlock Text="Configuración:" VerticalAlignment="Center" MinWidth="100" />
+                    <TextBlock Text="Configuración:" VerticalAlignment="Center" MinWidth="120" FontWeight="SemiBold" />
                     <Button Content="Editar" Command="{Binding EditConfigurationsCommand}" DockPanel.Dock="Right"
-                            Padding="20,8" Margin="10,0,0,0" />
+                            Padding="25,8" Margin="15,0,0,0" />
                     <ComboBox ItemsSource="{Binding AvailableConfigurations}"
-                            SelectedItem="{Binding SelectedConfiguration}" DisplayMemberPath="Description" Height="30"
-                            Margin="5,0" />
+                            SelectedItem="{Binding SelectedConfiguration}" DisplayMemberPath="Description" Height="35"
+                            Margin="5,0" VerticalContentAlignment="Center" />
                 </DockPanel>
             </Border>
 
             <!-- Project Management Section -->
-            <Border Grid.Row="2" BorderBrush="{DynamicResource BorderBrush}" BorderThickness="1" Padding="15">
+            <Border Grid.Row="2" BorderBrush="{DynamicResource BorderBrush}" BorderThickness="1" Padding="20" CornerRadius="4">
                 <DockPanel>
-                    <TextBlock Text="Proyecto Actual:" VerticalAlignment="Center" MinWidth="100" />
-                    <StackPanel DockPanel.Dock="Right" Orientation="Horizontal" Margin="10,0,0,0">
-                        <Button Content="Renombrar" Command="{Binding RenameProjectCommand}" Padding="15,8"
+                    <TextBlock Text="Proyecto Actual:" VerticalAlignment="Center" MinWidth="120" FontWeight="SemiBold" />
+                    <StackPanel DockPanel.Dock="Right" Orientation="Horizontal" Margin="15,0,0,0">
+                        <Button Content="Renombrar" Command="{Binding RenameProjectCommand}" Padding="20,8"
                                 Margin="0,0,10,0" />
-                        <Button Content="Eliminar" Command="{Binding DeleteProjectCommand}" Padding="15,8"
+                        <Button Content="Eliminar" Command="{Binding DeleteProjectCommand}" Padding="20,8"
                                 Background="LightPink" />
                     </StackPanel>
                     <ComboBox ItemsSource="{Binding ExistingProjects}" SelectedItem="{Binding SelectedProject}"
-                            Height="30" Margin="5,0" />
+                            Height="35" Margin="5,0" VerticalContentAlignment="Center" />
                 </DockPanel>
             </Border>
 
             <!-- Project Info Section -->
-            <Border Grid.Row="4" BorderBrush="{DynamicResource BorderBrush}" BorderThickness="1" Padding="15">
+            <Border Grid.Row="4" BorderBrush="{DynamicResource BorderBrush}" BorderThickness="1" Padding="20" CornerRadius="4">
                 <StackPanel>
-                    <DockPanel Margin="0,0,0,10">
-                        <TextBlock Text="Último Proyecto:" MinWidth="100" />
+                    <DockPanel Margin="0,0,0,15">
+                        <TextBlock Text="Último Proyecto:" MinWidth="120" FontWeight="SemiBold" />
                         <TextBlock Text="{Binding LastProjectNumber}" Margin="5,0" />
                     </DockPanel>
                     <DockPanel>
-                        <TextBlock Text="Ruta Base:" MinWidth="100" />
+                        <TextBlock Text="Ruta Base:" MinWidth="120" FontWeight="SemiBold" />
                         <Button Content="Abrir" Command="{Binding OpenBaseFolderCommand}" DockPanel.Dock="Right"
-                                Padding="15,5" />
+                                Padding="20,5" />
                         <TextBlock Text="{Binding BasePath}" Margin="5,0" TextWrapping="Wrap" />
                     </DockPanel>
                 </StackPanel>
             </Border>
 
             <!-- New Project Section -->
-            <Border Grid.Row="6" BorderBrush="{DynamicResource BorderBrush}" BorderThickness="1" Padding="15">
+            <Border Grid.Row="6" BorderBrush="{DynamicResource BorderBrush}" BorderThickness="1" Padding="20" CornerRadius="4">
                 <DockPanel>
-                    <TextBlock Text="Nuevo Proyecto:" VerticalAlignment="Center" MinWidth="100" />
-                    <TextBox Text="{Binding NewProjectName, UpdateSourceTrigger=PropertyChanged}" Height="30"
-                            Margin="5,0" />
+                    <TextBlock Text="Nuevo Proyecto:" VerticalAlignment="Center" MinWidth="120" FontWeight="SemiBold" />
+                    <TextBox Text="{Binding NewProjectName, UpdateSourceTrigger=PropertyChanged}" Height="35"
+                            Margin="5,0" VerticalContentAlignment="Center" />
                 </DockPanel>
             </Border>
 
             <!-- Actions Section -->
-            <Border Grid.Row="8" BorderBrush="{DynamicResource BorderBrush}" BorderThickness="1" Padding="15">
+            <Border Grid.Row="8" BorderBrush="{DynamicResource BorderBrush}" BorderThickness="1" Padding="20" CornerRadius="4">
                 <DockPanel>
                     <CheckBox Content="Tema Oscuro" IsChecked="{Binding IsDarkTheme}" VerticalAlignment="Center" />
                     <Button Content="Crear Directorios" Command="{Binding CreateDirectoriesCommand}"
-                            DockPanel.Dock="Right" Padding="20,8" Background="{DynamicResource ButtonBackground}" />
+                            DockPanel.Dock="Right" Padding="25,10" Background="{DynamicResource ButtonBackground}" 
+                            FontWeight="SemiBold" />
                 </DockPanel>
             </Border>
         </Grid>
diff --git a/MainWindow.xaml.cs b/MainWindow.xaml.cs
index 9ecbcc7..e46d177 100644
--- a/MainWindow.xaml.cs
+++ b/MainWindow.xaml.cs
@@ -253,6 +253,19 @@ namespace DirectoryCreator.ViewModels
                     .ToList();
 
                 ExistingProjects = new ObservableCollection<string>(directories);
+                
+                // Seleccionar el LastProjectNumber si existe
+                if (ExistingProjects.Count > 0)
+                {
+                    if (!string.IsNullOrEmpty(LastProjectNumber) && ExistingProjects.Contains(LastProjectNumber))
+                    {
+                        SelectedProject = LastProjectNumber;
+                    }
+                    else
+                    {
+                        SelectedProject = ExistingProjects[0];
+                    }
+                }
             }
             catch (Exception ex)
             {