PalladiumWallet/src/App/Views/MainWindow.axaml

<Window xmlns="https://github.com/avaloniaui"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:vm="using:PalladiumWallet.App.ViewModels"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        mc:Ignorable="d" d:DesignWidth="900" d:DesignHeight="620"
        x:Class="PalladiumWallet.App.Views.MainWindow"
        x:DataType="vm:MainWindowViewModel"
        Icon="/Assets/avalonia-logo.ico"
        Width="900" Height="620"
        Title="Palladium Wallet">

    <Design.DataContext>
        <vm:MainWindowViewModel/>
    </Design.DataContext>

    <Grid RowDefinitions="Auto,*,Auto">

        <!-- ============ MENU (stile Electrum) ============ -->
        <Menu Grid.Row="0">
            <MenuItem Header="_File">
                <MenuItem Header="Nuovo / ripristina wallet…" Command="{Binding NewWalletCommand}"/>
                <MenuItem Header="Apri wallet da file…" Click="OnOpenWalletFileClick"/>
                <Separator/>
                <MenuItem Header="Chiudi wallet" Command="{Binding CloseWalletCommand}"
                          IsEnabled="{Binding IsWalletOpen}"/>
            </MenuItem>
            <MenuItem Header="_Rete">
                <MenuItem Header="Cerca altri server (peer)" Command="{Binding DiscoverServersCommand}"/>
                <MenuItem Header="Reset certificati SSL" Command="{Binding ResetCertificatesCommand}"/>
            </MenuItem>
        </Menu>

        <!-- ============ PANNELLO SETUP: crea / ripristina / apri ============ -->
        <ScrollViewer Grid.Row="1" IsVisible="{Binding IsSetupVisible}">
            <StackPanel MaxWidth="560" Margin="24" Spacing="14">
                <TextBlock Text="Palladium Wallet" FontSize="28" FontWeight="Bold"/>

                <StackPanel Orientation="Horizontal" Spacing="10">
                    <TextBlock Text="Rete:" VerticalAlignment="Center"/>
                    <ComboBox ItemsSource="{Binding Networks}"
                              SelectedItem="{Binding SelectedNetwork}"
                              MinWidth="140"/>
                </StackPanel>

                <!-- Apri wallet esistente -->
                <Border IsVisible="{Binding WalletFileExists}"
                        BorderBrush="{DynamicResource SystemAccentColor}" BorderThickness="1"
                        CornerRadius="6" Padding="14">
                    <StackPanel Spacing="8">
                        <TextBlock Text="Apri il wallet esistente" FontWeight="Bold"/>
                        <TextBox PlaceholderText="Password del file (vuoto se non impostata)"
                                 PasswordChar="●" Text="{Binding PasswordInput}"/>
                        <Button Content="Apri wallet" Command="{Binding OpenExistingCommand}"/>
                    </StackPanel>
                </Border>

                <!-- Crea / ripristina -->
                <Border BorderBrush="Gray" BorderThickness="1" CornerRadius="6" Padding="14">
                    <StackPanel Spacing="8">
                        <TextBlock Text="Crea nuovo o ripristina da seed" FontWeight="Bold"/>
                        <TextBox PlaceholderText="Mnemonica BIP39 (12 o 24 parole)"
                                 AcceptsReturn="False" Text="{Binding MnemonicInput}"/>
                        <Button Content="Genera nuova mnemonica" Command="{Binding GenerateMnemonicCommand}"/>
                        <TextBox PlaceholderText="Passphrase BIP39 opzionale (cambia il wallet! annotala a parte)"
                                 Text="{Binding PassphraseInput}"/>
                        <TextBox PlaceholderText="Password di cifratura del file wallet (consigliata)"
                                 PasswordChar="●" Text="{Binding PasswordInput}"/>
                        <Button Content="Crea / ripristina wallet" Command="{Binding CreateOrRestoreCommand}"/>
                    </StackPanel>
                </Border>
            </StackPanel>
        </ScrollViewer>

        <!-- ============ PANNELLO WALLET ============ -->
        <Grid Grid.Row="1" RowDefinitions="Auto,Auto,*" IsVisible="{Binding IsWalletOpen}" Margin="16">

            <!-- Testata: saldo + rete + chiudi -->
            <Grid Grid.Row="0" ColumnDefinitions="*,Auto">
                <StackPanel Grid.Column="0" Spacing="2">
                    <TextBlock Text="{Binding BalanceText}" FontSize="30" FontWeight="Bold"/>
                    <TextBlock Text="{Binding UnconfirmedText}" Foreground="Orange"/>
                    <TextBlock Text="{Binding NetworkInfo}" FontSize="12" Foreground="Gray"/>
                </StackPanel>
                <Button Grid.Column="1" Content="Chiudi wallet" VerticalAlignment="Top"
                        Command="{Binding CloseWalletCommand}"/>
            </Grid>

            <!-- Server -->
            <Border Grid.Row="1" Margin="0,12,0,12" Padding="10"
                    BorderBrush="Gray" BorderThickness="1" CornerRadius="6">
                <Grid RowDefinitions="Auto,Auto" ColumnDefinitions="Auto,*,Auto,Auto">
                    <TextBlock Grid.Row="0" Grid.Column="0" Text="Server:"
                               VerticalAlignment="Center" Margin="0,0,8,0"/>
                    <ComboBox Grid.Row="0" Grid.Column="1"
                              ItemsSource="{Binding KnownServers}"
                              SelectedItem="{Binding SelectedKnownServer}"
                              HorizontalAlignment="Stretch"/>
                    <CheckBox Grid.Row="0" Grid.Column="2" Content="TLS"
                              IsChecked="{Binding UseSsl}" Margin="8,0"/>
                    <Button Grid.Row="0" Grid.Column="3" Content="Connetti e sincronizza"
                            Command="{Binding ConnectAndSyncCommand}" IsEnabled="{Binding !IsSyncing}"/>

                    <StackPanel Grid.Row="1" Grid.Column="1" Orientation="Horizontal"
                                Spacing="8" Margin="0,8,0,0">
                        <TextBox Text="{Binding ServerInput}" MinWidth="220"
                                 PlaceholderText="oppure host:porta manuale"/>
                        <Button Content="Cerca altri server"
                                Command="{Binding DiscoverServersCommand}"/>
                        <Button Content="Reset cert."
                                Command="{Binding ResetCertificatesCommand}"/>
                    </StackPanel>
                    <StackPanel Grid.Row="1" Grid.Column="2" Grid.ColumnSpan="2"
                                Orientation="Horizontal" Spacing="6" Margin="8,8,0,0"
                                VerticalAlignment="Center">
                        <Ellipse Width="10" Height="10" Fill="LimeGreen"
                                 IsVisible="{Binding IsConnected}"/>
                        <Ellipse Width="10" Height="10" Fill="IndianRed"
                                 IsVisible="{Binding !IsConnected}"/>
                        <TextBlock Text="{Binding ConnectionStatus}" Foreground="Gray"/>
                    </StackPanel>
                </Grid>
            </Border>

            <!-- Tab: Ricevi / Storico / Invia -->
            <TabControl Grid.Row="2">
                <TabItem Header="Ricevi">
                    <StackPanel Spacing="10" Margin="8">
                        <TextBlock Text="Prossimo indirizzo non usato:"/>
                        <SelectableTextBlock Text="{Binding ReceiveAddress}"
                                             FontFamily="monospace" FontSize="16"/>
                        <TextBlock Text="Ogni pagamento ricevuto qui comparirà nello storico alla prossima sincronizzazione."
                                   Foreground="Gray" FontSize="12" TextWrapping="Wrap"/>
                    </StackPanel>
                </TabItem>

                <TabItem Header="Storico">
                    <ListBox ItemsSource="{Binding History}" Margin="4">
                        <ListBox.ItemTemplate>
                            <DataTemplate x:DataType="vm:HistoryRow">
                                <Grid ColumnDefinitions="90,160,*,70">
                                    <TextBlock Grid.Column="0" Text="{Binding Conferma}" Foreground="Gray"/>
                                    <TextBlock Grid.Column="1" Text="{Binding Importo}" FontFamily="monospace"/>
                                    <SelectableTextBlock Grid.Column="2" Text="{Binding Txid}"
                                                         FontFamily="monospace" FontSize="12"/>
                                    <TextBlock Grid.Column="3" Text="{Binding Verificata}" Foreground="Green"/>
                                </Grid>
                            </DataTemplate>
                        </ListBox.ItemTemplate>
                    </ListBox>
                </TabItem>

                <TabItem Header="Indirizzi">
                    <Grid RowDefinitions="Auto,*" Margin="4">
                        <Grid Grid.Row="0" ColumnDefinitions="90,60,*,140,60" Margin="12,4">
                            <TextBlock Grid.Column="0" Text="Tipo" FontWeight="Bold"/>
                            <TextBlock Grid.Column="1" Text="Indice" FontWeight="Bold"/>
                            <TextBlock Grid.Column="2" Text="Indirizzo" FontWeight="Bold"/>
                            <TextBlock Grid.Column="3" Text="Saldo" FontWeight="Bold"/>
                            <TextBlock Grid.Column="4" Text="Tx" FontWeight="Bold"/>
                        </Grid>
                        <ListBox Grid.Row="1" ItemsSource="{Binding Addresses}">
                            <ListBox.ItemTemplate>
                                <DataTemplate x:DataType="vm:AddressRow">
                                    <Grid ColumnDefinitions="90,60,*,140,60">
                                        <TextBlock Grid.Column="0" Text="{Binding Tipo}" Foreground="Gray"/>
                                        <TextBlock Grid.Column="1" Text="{Binding Indice}" Foreground="Gray"/>
                                        <SelectableTextBlock Grid.Column="2" Text="{Binding Indirizzo}"
                                                             FontFamily="monospace" FontSize="13"/>
                                        <TextBlock Grid.Column="3" Text="{Binding Saldo}" FontFamily="monospace"/>
                                        <TextBlock Grid.Column="4" Text="{Binding NumTx}" Foreground="Gray"/>
                                    </Grid>
                                </DataTemplate>
                            </ListBox.ItemTemplate>
                        </ListBox>
                    </Grid>
                </TabItem>

                <TabItem Header="Invia">
                    <StackPanel Spacing="10" Margin="8" MaxWidth="640" HorizontalAlignment="Left">
                        <TextBox PlaceholderText="Indirizzo destinatario" Text="{Binding SendTo}"
                                 FontFamily="monospace"/>
                        <Grid ColumnDefinitions="*,Auto,Auto">
                            <TextBox Grid.Column="0" PlaceholderText="Importo (es. 1.5)"
                                     Text="{Binding SendAmount}" IsEnabled="{Binding !SendAll}"/>
                            <CheckBox Grid.Column="1" Content="Invia tutto" Margin="10,0"
                                      IsChecked="{Binding SendAll}"/>
                            <StackPanel Grid.Column="2" Orientation="Horizontal" Spacing="6">
                                <TextBlock Text="fee sat/vB:" VerticalAlignment="Center"/>
                                <TextBox Text="{Binding SendFeeRate}" MinWidth="60"/>
                            </StackPanel>
                        </Grid>
                        <StackPanel Orientation="Horizontal" Spacing="10">
                            <Button Content="Prepara transazione" Command="{Binding PrepareSendCommand}"/>
                            <Button Content="CONFERMA E TRASMETTI" Classes="accent"
                                    Command="{Binding ConfirmSendCommand}"
                                    IsEnabled="{Binding HasPendingSend}"/>
                        </StackPanel>
                        <SelectableTextBlock Text="{Binding SendPreview}" TextWrapping="Wrap"
                                             FontSize="13"/>
                    </StackPanel>
                </TabItem>
            </TabControl>
        </Grid>

        <!-- Barra di stato -->
        <Border Grid.Row="2" Background="{DynamicResource SystemControlBackgroundChromeMediumBrush}"
                Padding="10,6">
            <TextBlock Text="{Binding StatusMessage}" FontSize="12" TextWrapping="Wrap"/>
        </Border>
    </Grid>
</Window>