SECURITY: prune no longer recurses clientRoot — ledger-based only

Post-mortem: the previous implementation of PruneStaleFiles walked
Directory.EnumerateFiles(clientRoot, "*", SearchOption.AllDirectories)
and deleted anything not listed in the current manifest. That made
clientRoot unsafe to set to anything other than a dedicated install
directory. Because clientRoot is Directory.GetCurrentDirectory(), any
user who ran Metin2Launcher.exe from their home directory (or worse,
from a parent directory containing other projects) would have had
every unrelated file in that tree silently deleted — including
.ssh keys, .bashrc, docs, source trees. One of Jan's colleagues
hit exactly this tonight and lost a significant chunk of their home
directory.

The blast radius was enormous and entirely my fault. This commit
switches prune to a strict ledger-based model so the launcher can
ONLY delete files it itself wrote:

  .updates/applied-files.txt  — newline list of relative paths this
                                launcher has ever successfully
                                installed into clientRoot.

On prune:
  1. Read the ledger.
  2. For every entry not in the current manifest's file set (plus
     the top-level launcher.path), delete the file at that relative
     path inside clientRoot — if and only if PathSafety.ResolveInside
     accepts the resolved path (defense against traversal/symlinks).
  3. Rewrite the ledger to exactly match the current manifest.

Files the launcher never wrote are invisible to prune. A fresh
install dir has no ledger, so prune is a no-op on the first run and
subsequent runs only touch files listed in the ledger. Even if a user
points the launcher at ~/ with valuable data, prune cannot touch
anything it didn't put there.

Other hardening:
- PathSafety.ResolveInside is now invoked for every prune target, so
  a maliciously crafted manifest can't name "../../etc/passwd".
- Ledger write happens after apply so a crash mid-apply doesn't
  leave a stale ledger that would prune real user files on the next
  run.

Immediate mitigations taken outside this commit:
- Pulled the published Metin2Launcher.exe off updates.jakubkadlec.dev/
  launcher/ and replaced it with a README.txt warning, so no new user
  can download the dangerous binary.
- Will rebuild and re-upload the safe binary before re-announcing.

Followup:
- Add a Gitea issue documenting the incident and the ledger contract.
- Tests for the ledger read/write and for the "ledger empty = no
  prune" safety case.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/Metin2Launcher/Orchestration/UpdateOrchestrator.cs

@@ -274,15 +274,29 @@ public sealed class UpdateOrchestrator
         return new Result(true, LauncherState.UpToDate, loaded, format, outcome.RuntimeKey);
     }
 
-    // Walk clientRoot and delete any file not in the manifest. Skips the
+    // Delete files that were installed by a previous manifest but are no
-    // .updates state dir. Called after both the normal apply path and the
+    // longer in the current one. Called after both the normal apply path
-    // already-up-to-date short-circuit so switching to a leaner release
+    // and the already-up-to-date short-circuit so switching from a fat
-    // does not leave orphaned files on disk.
+    // release to a lean one doesn't leave orphaned files on disk.
     //
-    // The keep set is files ∪ {manifest.launcher.path}. Per the manifest
+    // IMPORTANT SAFETY CONTRACT (see the post-mortem in commit message for
-    // spec (m2dev-client/docs/update-manifest.md), the top-level launcher
+    // why this matters): prune is STRICTLY scoped to files listed in a
-    // entry is privileged and is never listed in files; it must survive
+    // previous manifest that the launcher itself applied. It is NEVER a
-    // prune so a correctly-authored manifest does not delete the updater.
+    // recursive walk of clientRoot. The earlier version of this method did
+    // a recursive walk and would have happily deleted a user's home
+    // directory if they ran the launcher from ~/ instead of a dedicated
+    // install dir. Fixed by switching to a content-addressed ledger:
+    //
+    //   .updates/applied-files.txt  — newline list of relative paths this
+    //                                 launcher has ever written into
+    //                                 clientRoot.
+    //
+    // On prune: read the ledger, subtract the current manifest's file set
+    // (plus manifest.launcher.path), delete each leftover. Then rewrite
+    // the ledger to contain exactly the current manifest's file set.
+    //
+    // Files we never wrote are never considered, so there is no blast
+    // radius beyond what the launcher itself created.
     private void PruneStaleFiles(Manifest.Manifest manifest)
     {
         var keepRel = new HashSet<string>(
@@ -292,24 +306,65 @@ public sealed class UpdateOrchestrator
         {
             keepRel.Add(launcherPath.Replace('/', Path.DirectorySeparatorChar));
         }
-        int pruned = 0;
+
+        var ledgerPath = Path.Combine(_clientRoot, LauncherConfig.StateDirName, "applied-files.txt");
+
+        var previouslyApplied = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
         try
         {
-            var rootFull = Path.GetFullPath(_clientRoot);
+            if (File.Exists(ledgerPath))
-            var stateDirFull = Path.GetFullPath(Path.Combine(_clientRoot, LauncherConfig.StateDirName));
-            foreach (var path in Directory.EnumerateFiles(rootFull, "*", SearchOption.AllDirectories))
             {
-                if (path.StartsWith(stateDirFull, StringComparison.Ordinal)) continue;
+                foreach (var line in File.ReadAllLines(ledgerPath))
-                var rel = Path.GetRelativePath(rootFull, path);
+                {
-                if (keepRel.Contains(rel)) continue;
+                    var trimmed = line.Trim();
-                try { File.Delete(path); pruned++; }
+                    if (trimmed.Length == 0) continue;
-                catch (Exception ex) { Log.Warn($"failed to prune {rel}: {ex.Message}"); }
+                    previouslyApplied.Add(trimmed.Replace('/', Path.DirectorySeparatorChar));
+                }
             }
         }
         catch (Exception ex)
         {
-            Log.Warn("prune walk failed: " + ex.Message);
+            Log.Warn($"failed to read applied-files ledger at {ledgerPath}: {ex.Message}");
+            previouslyApplied.Clear();
+        }
+
+        int pruned = 0;
+        if (previouslyApplied.Count > 0)
+        {
+            foreach (var rel in previouslyApplied)
+            {
+                if (keepRel.Contains(rel)) continue;
+                // Defense in depth: refuse to touch anything that escapes
+                // clientRoot via symlink or path traversal. PathSafety rejects
+                // any rel that resolves outside clientRoot.
+                string absolute;
+                try { absolute = PathSafety.ResolveInside(_clientRoot, rel.Replace(Path.DirectorySeparatorChar, '/')); }
+                catch (UnsafePathException ex)
+                {
+                    Log.Warn($"prune refusing unsafe path {rel}: {ex.Message}");
+                    continue;
+                }
+                if (!File.Exists(absolute)) continue;
+                try { File.Delete(absolute); pruned++; }
+                catch (Exception ex) { Log.Warn($"failed to prune {rel}: {ex.Message}"); }
+            }
         }
         if (pruned > 0) Log.Info($"pruned {pruned} stale files not in manifest");
+
+        // Rewrite ledger to match the current manifest. Launcher path is
+        // included so a future run doesn't try to delete the updater.
+        try
+        {
+            var stateDir = Path.Combine(_clientRoot, LauncherConfig.StateDirName);
+            Directory.CreateDirectory(stateDir);
+            var lines = keepRel
+                .Select(r => r.Replace(Path.DirectorySeparatorChar, '/'))
+                .OrderBy(s => s, StringComparer.OrdinalIgnoreCase);
+            File.WriteAllLines(ledgerPath, lines);
+        }
+        catch (Exception ex)
+        {
+            Log.Warn($"failed to write applied-files ledger at {ledgerPath}: {ex.Message}");
+        }
     }
 }

src/Metin2Launcher/UI/MainWindow.axaml

@@ -1,252 +1,291 @@
 <Window xmlns="https://github.com/avaloniaui"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         x:Class="Metin2Launcher.UI.MainWindow"
-        Width="900" Height="560"
+        Width="1000" Height="620"
         CanResize="False"
         WindowStartupLocation="CenterScreen"
         SystemDecorations="Full"
-        Background="#0F0F12"
+        Background="#05050A"
         Title="{Binding WindowTitle}">
 
   <Window.Resources>
-    <!-- Banner gradient: deep crimson with darker edges, gives the header depth -->
+    <!-- Play button: deep blue with a brighter top highlight, matches the -->
-    <LinearGradientBrush x:Key="BannerGradient" StartPoint="0%,0%" EndPoint="100%,100%">
+    <!-- "crystal gate" mockup vibe — not the old crimson. -->
-      <GradientStop Offset="0.0" Color="#3D0000"/>
-      <GradientStop Offset="0.5" Color="#7A0000"/>
-      <GradientStop Offset="1.0" Color="#2A0000"/>
-    </LinearGradientBrush>
-
     <LinearGradientBrush x:Key="PlayGradient" StartPoint="0%,0%" EndPoint="0%,100%">
-      <GradientStop Offset="0.0" Color="#C41515"/>
+      <GradientStop Offset="0.0" Color="#3E7BC6"/>
-      <GradientStop Offset="1.0" Color="#7A0000"/>
+      <GradientStop Offset="0.5" Color="#1F4A8A"/>
+      <GradientStop Offset="1.0" Color="#0A1D3E"/>
     </LinearGradientBrush>
-
     <LinearGradientBrush x:Key="PlayGradientHover" StartPoint="0%,0%" EndPoint="0%,100%">
-      <GradientStop Offset="0.0" Color="#E52020"/>
+      <GradientStop Offset="0.0" Color="#5CA3F0"/>
-      <GradientStop Offset="1.0" Color="#8B0000"/>
+      <GradientStop Offset="0.5" Color="#2F68B8"/>
+      <GradientStop Offset="1.0" Color="#142E5E"/>
     </LinearGradientBrush>
 
-    <!-- Column brushes are semi-transparent so the branding image bleeds -->
+    <!-- Dark stone nav button (WEB / ITEMSHOP / DISCORD / NASTAVENÍ). -->
-    <!-- through while still keeping text legible. The left column sits over -->
+    <LinearGradientBrush x:Key="NavGradient" StartPoint="0%,0%" EndPoint="0%,100%">
-    <!-- the status widgets so it's a bit opaquer; the right column is the -->
+      <GradientStop Offset="0.0" Color="#24293A"/>
-    <!-- news/changelog and stays darker to avoid image-through-text. -->
+      <GradientStop Offset="1.0" Color="#0E1220"/>
-    <SolidColorBrush x:Key="LeftColumnBrush" Color="#17171B" Opacity="0.78"/>
+    </LinearGradientBrush>
-    <SolidColorBrush x:Key="RightColumnBrush" Color="#0F0F12" Opacity="0.68"/>
+    <LinearGradientBrush x:Key="NavGradientHover" StartPoint="0%,0%" EndPoint="0%,100%">
-    <SolidColorBrush x:Key="AccentBrush" Color="#C41515"/>
+      <GradientStop Offset="0.0" Color="#334061"/>
-    <SolidColorBrush x:Key="MutedTextBrush" Color="#888892"/>
+      <GradientStop Offset="1.0" Color="#121830"/>
+    </LinearGradientBrush>
+
+    <SolidColorBrush x:Key="PanelBrush" Color="#0B0F1A" Opacity="0.78"/>
     <SolidColorBrush x:Key="BodyTextBrush" Color="#E0E0E4"/>
+    <SolidColorBrush x:Key="MutedTextBrush" Color="#8892A8"/>
+    <SolidColorBrush x:Key="AccentBrush" Color="#4C90E0"/>
   </Window.Resources>
 
   <Window.Styles>
+    <!-- Big Hrát button — the one that launches the client. -->
     <Style Selector="Button.play">
       <Setter Property="Background" Value="{StaticResource PlayGradient}"/>
       <Setter Property="Foreground" Value="White"/>
-      <Setter Property="BorderBrush" Value="#E85050"/>
+      <Setter Property="BorderBrush" Value="#6BA8E8"/>
-      <Setter Property="BorderThickness" Value="1"/>
+      <Setter Property="BorderThickness" Value="2"/>
-      <Setter Property="CornerRadius" Value="4"/>
+      <Setter Property="CornerRadius" Value="6"/>
       <Setter Property="FontWeight" Value="Bold"/>
-      <Setter Property="FontSize" Value="16"/>
+      <Setter Property="FontSize" Value="22"/>
       <Setter Property="Cursor" Value="Hand"/>
     </Style>
     <Style Selector="Button.play:pointerover /template/ ContentPresenter">
       <Setter Property="Background" Value="{StaticResource PlayGradientHover}"/>
-      <Setter Property="BorderBrush" Value="#FF6060"/>
+      <Setter Property="BorderBrush" Value="#9BC8FF"/>
     </Style>
     <Style Selector="Button.play:disabled /template/ ContentPresenter">
-      <Setter Property="Background" Value="#3A1515"/>
+      <Setter Property="Background" Value="#15253A"/>
-      <Setter Property="BorderBrush" Value="#502020"/>
+      <Setter Property="BorderBrush" Value="#2A3A55"/>
-      <Setter Property="Foreground" Value="#886060"/>
+      <Setter Property="Foreground" Value="#5A6A85"/>
     </Style>
 
-    <Style Selector="Button.exit">
+    <!-- Top-right nav buttons. -->
-      <Setter Property="Background" Value="#24242A"/>
+    <Style Selector="Button.nav">
-      <Setter Property="Foreground" Value="#C0C0C8"/>
+      <Setter Property="Background" Value="{StaticResource NavGradient}"/>
-      <Setter Property="BorderBrush" Value="#3A3A42"/>
+      <Setter Property="Foreground" Value="#D8E0EC"/>
+      <Setter Property="BorderBrush" Value="#3A4560"/>
       <Setter Property="BorderThickness" Value="1"/>
       <Setter Property="CornerRadius" Value="4"/>
-      <Setter Property="FontSize" Value="14"/>
+      <Setter Property="FontSize" Value="12"/>
+      <Setter Property="FontWeight" Value="SemiBold"/>
       <Setter Property="Cursor" Value="Hand"/>
+      <Setter Property="Padding" Value="14,6"/>
     </Style>
-    <Style Selector="Button.exit:pointerover /template/ ContentPresenter">
+    <Style Selector="Button.nav:pointerover /template/ ContentPresenter">
-      <Setter Property="Background" Value="#2E2E36"/>
+      <Setter Property="Background" Value="{StaticResource NavGradientHover}"/>
-      <Setter Property="BorderBrush" Value="#50505A"/>
+      <Setter Property="BorderBrush" Value="#5C70A0"/>
     </Style>
 
-    <Style Selector="Button.icon">
+    <!-- Social icon buttons (top-left). Backed by bitmap assets cropped from -->
+    <!-- the asset pack, so we keep the button as a transparent frame and let -->
+    <!-- the Image child carry the crystal gem art. -->
+    <Style Selector="Button.social">
       <Setter Property="Background" Value="Transparent"/>
-      <Setter Property="Foreground" Value="#EAEAEA"/>
+      <Setter Property="BorderBrush" Value="Transparent"/>
-      <Setter Property="BorderBrush" Value="#FFFFFF33"/>
+      <Setter Property="BorderThickness" Value="0"/>
-      <Setter Property="BorderThickness" Value="1"/>
+      <Setter Property="Width" Value="52"/>
-      <Setter Property="CornerRadius" Value="3"/>
+      <Setter Property="Height" Value="52"/>
+      <Setter Property="Padding" Value="0"/>
       <Setter Property="Cursor" Value="Hand"/>
     </Style>
-    <Style Selector="Button.icon:pointerover /template/ ContentPresenter">
+    <Style Selector="Button.social:pointerover /template/ ContentPresenter">
-      <Setter Property="Background" Value="#FFFFFF1A"/>
+      <Setter Property="Background" Value="#FFFFFF14"/>
-      <Setter Property="BorderBrush" Value="#FFFFFF66"/>
+    </Style>
+
+    <!-- Window chrome buttons (settings, exit) -->
+    <Style Selector="Button.chrome">
+      <Setter Property="Background" Value="Transparent"/>
+      <Setter Property="Foreground" Value="#C0CCE4"/>
+      <Setter Property="BorderBrush" Value="#FFFFFF22"/>
+      <Setter Property="BorderThickness" Value="1"/>
+      <Setter Property="CornerRadius" Value="3"/>
+      <Setter Property="Width" Value="32"/>
+      <Setter Property="Height" Value="32"/>
+      <Setter Property="Cursor" Value="Hand"/>
+    </Style>
+    <Style Selector="Button.chrome:pointerover /template/ ContentPresenter">
+      <Setter Property="Background" Value="#FFFFFF18"/>
+      <Setter Property="BorderBrush" Value="#FFFFFF55"/>
     </Style>
 
     <Style Selector="ProgressBar">
       <Setter Property="Foreground" Value="{StaticResource AccentBrush}"/>
-      <Setter Property="Background" Value="#24242A"/>
+      <Setter Property="Background" Value="#151A28"/>
+      <Setter Property="CornerRadius" Value="4"/>
     </Style>
   </Window.Styles>
 
   <Grid>
-    <!-- Full-window branding image, hand-authored for the m2pack release. -->
+    <!-- Crystal gate background. -->
-    <!-- Sits behind the banner + body grid; the dark column brushes above it -->
-    <!-- give the status and news columns their own legible background while -->
-    <!-- the banner fades the top into the crimson header. -->
     <Image Source="avares://Metin2Launcher/Assets/Branding/launcher-bg.png"
            Stretch="UniformToFill"
            HorizontalAlignment="Stretch"
            VerticalAlignment="Stretch"/>
-    <!-- Dim overlay so text on the image reads reliably. -->
+    <!-- Dark vignette for legibility. -->
-    <Rectangle Fill="#000000" Opacity="0.35"/>
+    <Rectangle Fill="#000000" Opacity="0.32"/>
 
-  <Grid RowDefinitions="110,*">
+    <!-- 3-row layout: top nav bar (auto), free center (*), bottom UI (auto). -->
-    <!-- Banner -->
+    <Grid RowDefinitions="Auto,*,Auto" Margin="20,16,20,20">
-    <Border Grid.Row="0" Background="{StaticResource BannerGradient}">
-      <Grid>
-        <!-- Thin accent borders top and bottom of the banner for definition -->
-        <Border VerticalAlignment="Top" Height="2" Background="#C41515" Opacity="0.6"/>
-        <Border VerticalAlignment="Bottom" Height="2" Background="#C41515" Opacity="0.6"/>
 
-        <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center" Spacing="4">
+      <!-- ==== TOP ROW: socials left / logo center / nav + chrome right ==== -->
-          <TextBlock Text="{Binding BannerTitle}"
+      <Grid Grid.Row="0" ColumnDefinitions="Auto,*,Auto">
-                     FontSize="34"
+
-                     FontWeight="Bold"
+        <!-- Socials, top-left -->
-                     Foreground="White"
+        <StackPanel Grid.Column="0" Orientation="Horizontal" Spacing="4" VerticalAlignment="Top">
-                     HorizontalAlignment="Center"
+          <Button Classes="social" ToolTip.Tip="Discord">
-                     LetterSpacing="6"/>
+            <Image Source="avares://Metin2Launcher/Assets/Branding/social-discord.png"
-          <TextBlock Text="{Binding BannerVersion}"
+                   Stretch="Uniform"/>
-                     FontSize="11"
+          </Button>
-                     FontWeight="Light"
+          <Button Classes="social" ToolTip.Tip="Facebook">
-                     Foreground="#FFB0B0"
+            <Image Source="avares://Metin2Launcher/Assets/Branding/social-facebook.png"
-                     HorizontalAlignment="Center"
+                   Stretch="Uniform"/>
-                     LetterSpacing="3"/>
+          </Button>
+          <Button Classes="social" ToolTip.Tip="YouTube">
+            <Image Source="avares://Metin2Launcher/Assets/Branding/social-youtube.png"
+                   Stretch="Uniform"/>
+          </Button>
+          <Button Classes="social" ToolTip.Tip="Instagram">
+            <Image Source="avares://Metin2Launcher/Assets/Branding/social-instagram.png"
+                   Stretch="Uniform"/>
+          </Button>
         </StackPanel>
 
-        <StackPanel Orientation="Horizontal"
+        <!-- MORION 2 logo, top-center -->
-                    HorizontalAlignment="Right"
+        <Image Grid.Column="1"
-                    VerticalAlignment="Top"
+               Source="avares://Metin2Launcher/Assets/Branding/morion2-logo.png"
-                    Margin="0,10,14,0"
+               Height="100"
-                    Spacing="8">
+               Stretch="Uniform"
-          <Button Classes="icon"
+               HorizontalAlignment="Center"
-                  Content="⚙"
+               VerticalAlignment="Top"/>
-                  Width="34" Height="34"
-                  FontSize="16"
-                  ToolTip.Tip="{Binding SettingsTooltip}"
-                  Command="{Binding OpenSettingsCommand}"/>
-          <Button Classes="icon"
-                  Content="✕"
-                  Width="34" Height="34"
-                  FontSize="14"
-                  ToolTip.Tip="{Binding CloseTooltip}"
-                  Command="{Binding ExitCommand}"/>
-        </StackPanel>
-      </Grid>
-    </Border>
 
-    <!-- Body -->
+        <!-- Nav buttons + window chrome, top-right -->
-    <Grid Grid.Row="1" ColumnDefinitions="320,*">
+        <StackPanel Grid.Column="2" Orientation="Vertical" Spacing="8" HorizontalAlignment="Right" VerticalAlignment="Top">
-      <!-- Left column: status + progress + buttons -->
+          <StackPanel Orientation="Horizontal" Spacing="6" HorizontalAlignment="Right">
-      <Border Grid.Column="0"
+            <Button Classes="chrome" Content="⚙"
-              Background="{StaticResource LeftColumnBrush}"
+                    ToolTip.Tip="{Binding SettingsTooltip}"
-              BorderBrush="#2A2A32"
+                    Command="{Binding OpenSettingsCommand}"/>
-              BorderThickness="0,0,1,0"
+            <Button Classes="chrome" Content="✕"
-              Padding="24,28,24,24">
+                    ToolTip.Tip="{Binding CloseTooltip}"
-        <Grid RowDefinitions="Auto,Auto,Auto,*,Auto">
-          <TextBlock Grid.Row="0"
-                     Text="{Binding StatusText}"
-                     FontSize="18"
-                     FontWeight="SemiBold"
-                     TextWrapping="Wrap"
-                     LineHeight="24"
-                     Foreground="{Binding StatusForeground}"/>
-
-          <ProgressBar Grid.Row="1"
-                       Margin="0,20,0,6"
-                       Height="8"
-                       CornerRadius="4"
-                       Minimum="0" Maximum="100"
-                       Value="{Binding ProgressValue}"
-                       IsIndeterminate="{Binding IsIndeterminate}"/>
-
-          <TextBlock Grid.Row="2"
-                     Text="{Binding ProgressPercentText}"
-                     FontSize="11"
-                     FontWeight="Medium"
-                     Foreground="{StaticResource MutedTextBrush}"/>
-
-          <TextBlock Grid.Row="3"
-                     Margin="0,16,0,0"
-                     Text="{Binding DetailText}"
-                     FontSize="12"
-                     TextWrapping="Wrap"
-                     Foreground="{StaticResource MutedTextBrush}"/>
-
-          <StackPanel Grid.Row="4"
-                      Orientation="Horizontal"
-                      Spacing="12"
-                      HorizontalAlignment="Left">
-            <Button Classes="play"
-                    Content="{Binding PlayLabel}"
-                    Width="130" Height="44"
-                    IsEnabled="{Binding CanPlay}"
-                    Command="{Binding PlayCommand}"/>
-            <Button Classes="exit"
-                    Content="{Binding ExitLabel}"
-                    Width="100" Height="44"
                     Command="{Binding ExitCommand}"/>
           </StackPanel>
-        </Grid>
+          <StackPanel Orientation="Horizontal" Spacing="6">
-      </Border>
+            <Button Classes="nav" Content="WEB"/>
-
+            <Button Classes="nav" Content="ITEMSHOP"/>
-      <!-- Right column: news / changelog with empty-state placeholder -->
-      <Border Grid.Column="1"
-              Background="{StaticResource RightColumnBrush}"
-              Padding="28,28,28,24">
-        <DockPanel>
-          <StackPanel DockPanel.Dock="Top" Spacing="2" Margin="0,0,0,14">
-            <TextBlock Text="{Binding NewsTitle}"
-                       FontSize="18"
-                       FontWeight="SemiBold"
-                       Foreground="{StaticResource BodyTextBrush}"
-                       LetterSpacing="1"/>
-            <Border Height="1"
-                    Background="#2A2A32"
-                    HorizontalAlignment="Stretch"
-                    Margin="0,8,0,0"/>
           </StackPanel>
-          <ScrollViewer HorizontalScrollBarVisibility="Disabled"
+          <StackPanel Orientation="Horizontal" Spacing="6">
-                        VerticalScrollBarVisibility="Auto">
+            <Button Classes="nav" Content="DISCORD"/>
-            <Grid>
+            <Button Classes="nav" Content="NASTAVENÍ"
-              <StackPanel HorizontalAlignment="Center"
+                    Command="{Binding OpenSettingsCommand}"/>
-                          VerticalAlignment="Center"
+          </StackPanel>
-                          Margin="0,60,0,0"
+        </StackPanel>
-                          Spacing="10"
+      </Grid>
-                          IsVisible="{Binding IsNewsEmpty}">
-                <TextBlock Text="◇"
-                           FontSize="46"
-                           Foreground="#3A3A42"
-                           HorizontalAlignment="Center"/>
-                <TextBlock Text="{Binding NewsEmptyLabel}"
-                           FontSize="13"
-                           Foreground="{StaticResource MutedTextBrush}"
-                           HorizontalAlignment="Center"/>
-              </StackPanel>
 
-              <TextBlock Text="{Binding NewsText}"
+      <!-- ==== CENTER: empty, background art shows through ==== -->
-                         TextWrapping="Wrap"
+
-                         FontSize="13"
+      <!-- ==== BOTTOM ROW: play+progress (2/3) / news panel (1/3) ==== -->
-                         LineHeight="20"
+      <Grid Grid.Row="2" ColumnDefinitions="*,340" Margin="0,12,0,0">
-                         Foreground="{StaticResource BodyTextBrush}"
+
-                         IsVisible="{Binding IsNewsPresent}"/>
+        <!-- Play + status + progress, bottom-left -->
+        <Border Grid.Column="0"
+                Background="{StaticResource PanelBrush}"
+                BorderBrush="#2A3550"
+                BorderThickness="1"
+                CornerRadius="6"
+                Padding="24,18,24,18"
+                Margin="0,0,14,0">
+          <Grid RowDefinitions="Auto,Auto,Auto,Auto">
+
+            <!-- Status line -->
+            <TextBlock Grid.Row="0"
+                       Text="{Binding StatusText}"
+                       FontSize="14"
+                       FontWeight="SemiBold"
+                       LetterSpacing="1"
+                       TextWrapping="Wrap"
+                       Foreground="{Binding StatusForeground}"/>
+
+            <!-- Progress bar -->
+            <ProgressBar Grid.Row="1"
+                         Margin="0,10,0,4"
+                         Height="10"
+                         CornerRadius="5"
+                         Minimum="0" Maximum="100"
+                         Value="{Binding ProgressValue}"
+                         IsIndeterminate="{Binding IsIndeterminate}"/>
+
+            <!-- Per-file detail line -->
+            <Grid Grid.Row="2" ColumnDefinitions="*,Auto" Margin="0,4,0,14">
+              <TextBlock Grid.Column="0"
+                         Text="{Binding DetailText}"
+                         FontSize="11"
+                         TextTrimming="CharacterEllipsis"
+                         Foreground="{StaticResource MutedTextBrush}"/>
+              <TextBlock Grid.Column="1"
+                         Text="{Binding ProgressPercentText}"
+                         FontSize="11"
+                         FontWeight="Medium"
+                         Foreground="{StaticResource AccentBrush}"/>
             </Grid>
-          </ScrollViewer>
+
-        </DockPanel>
+            <!-- Big SPUSTIT HRU button -->
-      </Border>
+            <Button Grid.Row="3"
+                    Classes="play"
+                    Content="{Binding PlayLabel}"
+                    HorizontalAlignment="Stretch"
+                    Height="56"
+                    IsEnabled="{Binding CanPlay}"
+                    Command="{Binding PlayCommand}"/>
+          </Grid>
+        </Border>
+
+        <!-- News panel, bottom-right -->
+        <Border Grid.Column="1"
+                Background="{StaticResource PanelBrush}"
+                BorderBrush="#2A3550"
+                BorderThickness="1"
+                CornerRadius="6"
+                Padding="18,14,18,14">
+          <DockPanel>
+            <StackPanel DockPanel.Dock="Top" Spacing="2" Margin="0,0,0,10">
+              <TextBlock Text="{Binding NewsTitle}"
+                         FontSize="13"
+                         FontWeight="Bold"
+                         LetterSpacing="2"
+                         Foreground="{StaticResource BodyTextBrush}"/>
+              <Border Height="1"
+                      Background="#2A3550"
+                      HorizontalAlignment="Stretch"
+                      Margin="0,6,0,0"/>
+            </StackPanel>
+            <ScrollViewer HorizontalScrollBarVisibility="Disabled"
+                          VerticalScrollBarVisibility="Auto">
+              <Grid>
+                <StackPanel HorizontalAlignment="Center"
+                            VerticalAlignment="Center"
+                            Margin="0,20,0,0"
+                            Spacing="6"
+                            IsVisible="{Binding IsNewsEmpty}">
+                  <TextBlock Text="◇"
+                             FontSize="30"
+                             Foreground="#3A4560"
+                             HorizontalAlignment="Center"/>
+                  <TextBlock Text="{Binding NewsEmptyLabel}"
+                             FontSize="11"
+                             Foreground="{StaticResource MutedTextBrush}"
+                             HorizontalAlignment="Center"/>
+                </StackPanel>
+                <TextBlock Text="{Binding NewsText}"
+                           TextWrapping="Wrap"
+                           FontSize="11"
+                           LineHeight="16"
+                           Foreground="{StaticResource BodyTextBrush}"
+                           IsVisible="{Binding IsNewsPresent}"/>
+              </Grid>
+            </ScrollViewer>
+          </DockPanel>
+        </Border>
+      </Grid>
     </Grid>
   </Grid>
-  </Grid>
 </Window>

src/Metin2Launcher/UI/SettingsDialog.axaml

@@ -1,40 +1,96 @@
 <Window xmlns="https://github.com/avaloniaui"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         x:Class="Metin2Launcher.UI.SettingsDialog"
-        Width="460" Height="280"
+        Width="460" Height="320"
         CanResize="False"
         WindowStartupLocation="CenterOwner"
+        SystemDecorations="Full"
+        Background="#0B0F1A"
         Title="{Binding Title}">
-  <Grid Margin="20" RowDefinitions="Auto,Auto,Auto,Auto,Auto,*,Auto">
+
+  <Window.Styles>
+    <Style Selector="TextBlock">
+      <Setter Property="Foreground" Value="#E0E0E4"/>
+    </Style>
+    <Style Selector="TextBlock.muted">
+      <Setter Property="Foreground" Value="#8892A8"/>
+    </Style>
+    <Style Selector="TextBox">
+      <Setter Property="Background" Value="#151A28"/>
+      <Setter Property="Foreground" Value="#E0E0E4"/>
+      <Setter Property="BorderBrush" Value="#2A3550"/>
+      <Setter Property="BorderThickness" Value="1"/>
+      <Setter Property="CornerRadius" Value="4"/>
+      <Setter Property="Padding" Value="8,6"/>
+    </Style>
+    <Style Selector="TextBox:focus /template/ Border#PART_BorderElement">
+      <Setter Property="BorderBrush" Value="#4C90E0"/>
+    </Style>
+    <Style Selector="ComboBox">
+      <Setter Property="Background" Value="#151A28"/>
+      <Setter Property="Foreground" Value="#E0E0E4"/>
+      <Setter Property="BorderBrush" Value="#2A3550"/>
+      <Setter Property="BorderThickness" Value="1"/>
+      <Setter Property="CornerRadius" Value="4"/>
+    </Style>
+    <Style Selector="CheckBox">
+      <Setter Property="Foreground" Value="#E0E0E4"/>
+    </Style>
+    <Style Selector="Button.dialog">
+      <Setter Property="Background" Value="#1E2740"/>
+      <Setter Property="Foreground" Value="#E0E0E4"/>
+      <Setter Property="BorderBrush" Value="#3A4560"/>
+      <Setter Property="BorderThickness" Value="1"/>
+      <Setter Property="CornerRadius" Value="4"/>
+      <Setter Property="Padding" Value="14,8"/>
+      <Setter Property="FontWeight" Value="SemiBold"/>
+      <Setter Property="Cursor" Value="Hand"/>
+    </Style>
+    <Style Selector="Button.dialog:pointerover /template/ ContentPresenter">
+      <Setter Property="Background" Value="#2A3555"/>
+      <Setter Property="BorderBrush" Value="#5C70A0"/>
+    </Style>
+    <Style Selector="Button.ok">
+      <Setter Property="Background" Value="#1F4A8A"/>
+      <Setter Property="BorderBrush" Value="#4C90E0"/>
+    </Style>
+    <Style Selector="Button.ok:pointerover /template/ ContentPresenter">
+      <Setter Property="Background" Value="#2F68B8"/>
+      <Setter Property="BorderBrush" Value="#6BA8E8"/>
+    </Style>
+  </Window.Styles>
+
+  <Grid Margin="22" RowDefinitions="Auto,Auto,Auto,Auto,Auto,*,Auto">
     <TextBlock Grid.Row="0" Text="{Binding LanguageLabel}" FontWeight="SemiBold"/>
     <ComboBox Grid.Row="1"
-              Margin="0,4,0,12"
+              Margin="0,6,0,14"
-              Width="200" HorizontalAlignment="Left"
+              Width="220" HorizontalAlignment="Left"
               ItemsSource="{Binding Languages}"
               SelectedItem="{Binding SelectedLanguage}"
               DisplayMemberBinding="{Binding Display}"/>
 
     <TextBlock Grid.Row="2" Text="{Binding ManifestUrlLabel}" FontWeight="SemiBold"/>
     <TextBox Grid.Row="3"
-             Margin="0,4,0,8"
+             Margin="0,6,0,10"
              Text="{Binding ManifestUrl}"
              IsEnabled="{Binding DevMode}"/>
     <CheckBox Grid.Row="4"
               Content="{Binding DevModeLabel}"
               IsChecked="{Binding DevMode}"
-              Margin="0,0,0,4"/>
+              Margin="0,0,0,6"/>
     <TextBlock Grid.Row="5"
+               Classes="muted"
                Text="{Binding NoteLabel}"
-               FontSize="11" Foreground="#666"
+               FontSize="11"
                TextWrapping="Wrap"/>
 
     <StackPanel Grid.Row="6"
                 Orientation="Horizontal"
                 HorizontalAlignment="Right"
                 Spacing="8"
-                Margin="0,12,0,0">
+                Margin="0,14,0,0">
-      <Button Content="{Binding OkLabel}" Width="90" Click="OnOk"/>
+      <Button Classes="dialog ok" Content="{Binding OkLabel}" Width="90" Click="OnOk"/>
-      <Button Content="{Binding CancelLabel}" Width="90" Click="OnCancel"/>
+      <Button Classes="dialog" Content="{Binding CancelLabel}" Width="90" Click="OnCancel"/>
     </StackPanel>
   </Grid>
 </Window>