diff --git a/DeepDrftPublic.Client/Controls/AudioPlayerBar/AudioPlayerBar.razor b/DeepDrftPublic.Client/Controls/AudioPlayerBar/AudioPlayerBar.razor
index 77d36ab..d07f3dd 100644
--- a/DeepDrftPublic.Client/Controls/AudioPlayerBar/AudioPlayerBar.razor
+++ b/DeepDrftPublic.Client/Controls/AudioPlayerBar/AudioPlayerBar.razor
@@ -12,64 +12,28 @@ else
         <MudContainer MaxWidth="MaxWidth.Large" Class="player-inner-container">
             <MudPaper Elevation="8" Class="player-surface pa-3">
 
-                @if (_isDesktop)
-                {
-                    @* Desktop Layout *@
-                    <MudStack Row="true" AlignItems="AlignItems.Center" Spacing="3" Class="player-row">
-                        <PlayerTransportZone IsPlaying="IsPlaying"
-                                             IsLoaded="IsLoaded"
-                                             IsLoading="IsLoading"
-                                             IsStreaming="IsStreaming"
-                                             LoadProgress="LoadProgress"
-                                             DisplayTime="DisplayTime"
-                                             Duration="Duration"
-                                             TogglePlayPause="@TogglePlayPause"
-                                             Stop="@Stop"
-                                             Class="controls-left"/>
+                <div class="player-layout">
+                    <PlayerTransportZone IsPlaying="IsPlaying"
+                                         IsLoaded="IsLoaded"
+                                         IsLoading="IsLoading"
+                                         IsStreaming="IsStreaming"
+                                         LoadProgress="LoadProgress"
+                                         DisplayTime="DisplayTime"
+                                         Duration="Duration"
+                                         TogglePlayPause="@TogglePlayPause"
+                                         Stop="@Stop"
+                                         Class="transport-zone"/>
 
-                        <PlayerSeekZone DisplayTime="DisplayTime"
-                                        Duration="Duration"
-                                        CanSeek="CanSeek"
-                                        OnSeekStart="@OnSeekStart"
-                                        OnSeekEnd="@OnSeekEnd"
-                                        OnSeekChange="@OnSeekChange"
-                                        Class="flex-grow-1"/>
+                    <VolumeControls Volume="@Volume" VolumeChanged="@OnVolumeChange"/>
 
-                        <VolumeControls Volume="@Volume" VolumeChanged="@OnVolumeChange"/>
-                    </MudStack>
-                }
-                else
-                {
-                    @* Mobile Layout *@
-                    <div>
-                        <div class="d-flex align-center justify-space-between mb-3">
-                            <div class="d-flex align-center gap-2">
-                                <PlayerControls IsPlaying="IsPlaying"
-                                                IsLoaded="IsLoaded"
-                                                TogglePlayPause="@TogglePlayPause"
-                                                Stop="@Stop"/>
-                                @if (IsLoading && !IsStreaming)
-                                {
-                                    <MudProgressCircular Color="Color.Tertiary"
-                                                         Size="Size.Small"
-                                                         Max="1D"
-                                                         Value="@LoadProgress"
-                                                         Indeterminate="@(LoadProgress == 0)"/>
-                                }
-                            </div>
-                            <TimestampLabel CurrentTime="DisplayTime" Duration="Duration"/>
-                            <VolumeControls Volume="@Volume" VolumeChanged="@OnVolumeChange"/>
-                        </div>
-
-                        <PlayerSeekZone DisplayTime="DisplayTime"
-                                        Duration="Duration"
-                                        CanSeek="CanSeek"
-                                        OnSeekStart="@OnSeekStart"
-                                        OnSeekEnd="@OnSeekEnd"
-                                        OnSeekChange="@OnSeekChange"
-                                        Class="flex-grow-1"/>
-                    </div>
-                }
+                    <PlayerSeekZone DisplayTime="DisplayTime"
+                                    Duration="Duration"
+                                    CanSeek="CanSeek"
+                                    OnSeekStart="@OnSeekStart"
+                                    OnSeekEnd="@OnSeekEnd"
+                                    OnSeekChange="@OnSeekChange"
+                                    Class="seek-zone"/>
+                </div>
 
                 @* Minimize / close — positioned absolutely top-right *@
                 <PlayerWindowControls OnMinimize="@ToggleMinimized" OnClose="@Close"/>
diff --git a/DeepDrftPublic.Client/Controls/AudioPlayerBar/AudioPlayerBar.razor.cs b/DeepDrftPublic.Client/Controls/AudioPlayerBar/AudioPlayerBar.razor.cs
index c8dc0be..ae3de8c 100644
--- a/DeepDrftPublic.Client/Controls/AudioPlayerBar/AudioPlayerBar.razor.cs
+++ b/DeepDrftPublic.Client/Controls/AudioPlayerBar/AudioPlayerBar.razor.cs
@@ -1,20 +1,16 @@
 using DeepDrftPublic.Client.Services;
 using Microsoft.AspNetCore.Components;
 using MudBlazor;
-using MudBlazor.Services;
 
 namespace DeepDrftPublic.Client.Controls.AudioPlayerBar;
 
 public partial class AudioPlayerBar : ComponentBase, IAsyncDisposable
 {
     [CascadingParameter] public IStreamingPlayerService? PlayerService { get; set; }
-    [Inject] public required IBrowserViewportService BrowserViewportService { get; set; }
 
     private bool _isMinimized = true;
     private bool _isSeeking = false;
     private double _seekPosition = 0;
-    private bool _isDesktop = true;
-    private Guid _viewportSubscriptionId;
     private IStreamingPlayerService? _subscribedService;
 
     private bool IsLoaded => PlayerService?.IsLoaded ?? false;
@@ -132,35 +128,13 @@ public partial class AudioPlayerBar : ComponentBase, IAsyncDisposable
         }
     }
     
-    protected override async Task OnAfterRenderAsync(bool firstRender)
-    {
-        if (firstRender)
-        {
-            var breakpoint = await BrowserViewportService.GetCurrentBreakpointAsync();
-            _isDesktop = breakpoint >= Breakpoint.Sm;
-
-            _viewportSubscriptionId = Guid.NewGuid();
-            await BrowserViewportService.SubscribeAsync(
-                _viewportSubscriptionId,
-                args =>
-                {
-                    _isDesktop = args.Breakpoint >= Breakpoint.Sm;
-                    InvokeAsync(StateHasChanged);
-                },
-                new ResizeOptions { NotifyOnBreakpointOnly = true },
-                fireImmediately: true);
-
-            StateHasChanged();
-        }
-    }
-
-    public async ValueTask DisposeAsync()
+    public ValueTask DisposeAsync()
     {
         if (_subscribedService != null)
         {
             _subscribedService.StateChanged -= OnPlayerStateChanged;
             _subscribedService = null;
         }
-        await BrowserViewportService.UnsubscribeAsync(_viewportSubscriptionId);
+        return ValueTask.CompletedTask;
     }
 }
\ No newline at end of file
diff --git a/DeepDrftPublic.Client/Controls/AudioPlayerBar/AudioPlayerBar.razor.css b/DeepDrftPublic.Client/Controls/AudioPlayerBar/AudioPlayerBar.razor.css
index d48bbfa..38848b5 100644
--- a/DeepDrftPublic.Client/Controls/AudioPlayerBar/AudioPlayerBar.razor.css
+++ b/DeepDrftPublic.Client/Controls/AudioPlayerBar/AudioPlayerBar.razor.css
@@ -71,3 +71,30 @@
         height: 160px;
     }
 }
+
+/* Unified responsive player layout.
+   Wide and narrow shapes are pure CSS — no runtime breakpoint subscription.
+   Children are targeted by their stable classes (transport-zone, volume-controls,
+   seek-zone) rather than positional nth-child, since all three render a .mud-stack
+   root and positional selectors would be fragile. */
+.player-layout {
+    display: flex;
+    flex-wrap: wrap;
+    align-items: center;
+    gap: 8px;
+    padding-right: 2.5rem; /* clear the abs-positioned PlayerWindowControls */
+}
+
+/* Wide (>= 600px): single row, seek zone grows and sits between transport and volume */
+@media (min-width: 600px) {
+    ::deep .transport-zone { order: 1; }
+    ::deep .seek-zone { order: 2; flex-grow: 1; flex-basis: 0; }
+    ::deep .volume-controls { order: 3; }
+}
+
+/* Narrow (< 600px): transport + volume on top row, seek full-width below */
+@media (max-width: 599.98px) {
+    ::deep .transport-zone { order: 1; }
+    ::deep .volume-controls { order: 2; }
+    ::deep .seek-zone { flex-basis: 100%; order: 3; }
+}
diff --git a/DeepDrftPublic.Client/Controls/AudioPlayerBar/PlayerTransportZone.razor.css b/DeepDrftPublic.Client/Controls/AudioPlayerBar/PlayerTransportZone.razor.css
index eb8607b..d1cfa96 100644
--- a/DeepDrftPublic.Client/Controls/AudioPlayerBar/PlayerTransportZone.razor.css
+++ b/DeepDrftPublic.Client/Controls/AudioPlayerBar/PlayerTransportZone.razor.css
@@ -2,3 +2,13 @@
 ::deep .controls-left {
     min-width: 200px;
 }
+
+/* Narrow (< 600px): lay the transport root horizontally (controls beside
+   timestamp) so it fits on one line next to VolumeControls. Scoped to the
+   root .transport-zone stack so the nested controls stack is untouched. */
+@media (max-width: 599.98px) {
+    ::deep .transport-zone {
+        flex-direction: row !important;
+        align-items: center;
+    }
+}
diff --git a/DeepDrftPublic.Client/Controls/AudioPlayerBar/SpectrumVisualizer.razor.cs b/DeepDrftPublic.Client/Controls/AudioPlayerBar/SpectrumVisualizer.razor.cs
index 6689089..bb14db0 100644
--- a/DeepDrftPublic.Client/Controls/AudioPlayerBar/SpectrumVisualizer.razor.cs
+++ b/DeepDrftPublic.Client/Controls/AudioPlayerBar/SpectrumVisualizer.razor.cs
@@ -15,6 +15,7 @@ public partial class SpectrumVisualizer : ComponentBase, IAsyncDisposable
     private double[] _spectrumData = Array.Empty<double>();
     private bool _isAnimating = false;
     private string? _playerId;
+    private IStreamingPlayerService? _subscribedService;
 
     private bool IsVisible => (PlayerService?.IsPlaying ?? false) || (PlayerService?.IsPaused ?? false) || _isAnimating;
 
@@ -25,9 +26,20 @@ public partial class SpectrumVisualizer : ComponentBase, IAsyncDisposable
 
     protected override async Task OnParametersSetAsync()
     {
-        // Provider re-renders cascade down to children and re-run OnParametersSet.
-        // Pick up the player id once the cascade arrives, then drive animation
-        // state from the parent's current IsPlaying — no callback wrapping needed.
+        // The cascade is IsFixed, so the provider's re-renders do NOT re-run
+        // OnParametersSet here, and this component has no incoming parameters
+        // that change. Subscribe to the multicast StateChanged side-channel so
+        // animation state stays correct independent of parent re-renders —
+        // notably when the bar expands while a track is already playing.
+        if (PlayerService != null && !ReferenceEquals(PlayerService, _subscribedService))
+        {
+            if (_subscribedService != null)
+                _subscribedService.StateChanged -= OnPlayerStateChanged;
+
+            PlayerService.StateChanged += OnPlayerStateChanged;
+            _subscribedService = PlayerService;
+        }
+
         if (_playerId == null && PlayerService is AudioPlayerService baseService)
         {
             _playerId = baseService.PlayerId;
@@ -36,6 +48,15 @@ public partial class SpectrumVisualizer : ComponentBase, IAsyncDisposable
         await UpdateAnimationState();
     }
 
+    private void OnPlayerStateChanged() => InvokeAsync(async () =>
+    {
+        if (_playerId == null && PlayerService is AudioPlayerService baseService)
+        {
+            _playerId = baseService.PlayerId;
+        }
+        await UpdateAnimationState();
+    });
+
     private async Task UpdateAnimationState()
     {
         if (string.IsNullOrEmpty(_playerId) || PlayerService == null) return;
@@ -93,6 +114,11 @@ public partial class SpectrumVisualizer : ComponentBase, IAsyncDisposable
 
     public async ValueTask DisposeAsync()
     {
+        if (_subscribedService != null)
+        {
+            _subscribedService.StateChanged -= OnPlayerStateChanged;
+            _subscribedService = null;
+        }
         await StopAnimation();
     }
 }