Juice pass: procedural SFX, particles, polished visuals

Sound (SfxManager.cs):
- Procedural audio synthesis via AudioStreamWav — no external files
- Distinct tones for place, produce, transfer, deliver, move, destroy, victory
- Simple ADSR envelope, sine/triangle waveforms, filtered noise for swooshes

Pieces (PieceView.cs):
- Warm earthy palette: sage green, deep teal, dusty rose, burnt sienna
- Drop shadow under each piece for depth
- 3-stop radial gradient (bright center → main → dark rim)
- Scale bounce on placement (0 → 1.15 → 1.0 with back-out easing)
- Cargo indicator pulses gently when carrying

Trajectories (TrajectView.cs):
- Arrowhead at endpoint showing movement direction
- Antialiased lines with piece-matched colors

Cells (CellView.cs):
- Warmer palette: parchment/walnut board, deep forest production, aged gold demand
- Production flash uses warm golden glow instead of white
- Subtle inner shadow for visual depth

Animations (EventAnimator.cs):
- Production: golden particles burst from production cells
- Transfer: cargo slides with 2-particle trail + back-out whip easing
- Destruction: pieces shrink + spin + red particle explosion
- Victory: 40 confetti particles rain across the screen
- All phases trigger appropriate SFX

UI polish:
- ControlBar: styled buttons with rounded corners, disabled states
- MetricsOverlay: fade-in + scale animation, sequential metric reveals
- ObjectivePanel: animated progress bars, styled fills, green flash on completion
- Main: fade-in/out transitions between level select and gameplay

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

CLAUDE.md

@@ -24,3 +24,9 @@ Input → Command → GameSim (state + rules) → Events → Presentation
 Tout `Control` (ColorRect, Label…) a `MouseFilter = Stop` par defaut. Quand un Control est enfant d'un Node2D (ex: les ColorRect dans CellView, les Labels dans PieceView), **il participe quand meme au systeme GUI et consomme les clics**, empechant `_UnhandledInput` de recevoir l'evenement.
 
 **Regle** : toujours mettre `MouseFilter = Control.MouseFilterEnum.Ignore` sur les Controls purement visuels enfants de Node2D.
+
+## Conventions Claude
+
+### Plans
+
+Les fichiers de plan doivent etre rediges a la racine du workspace (ex: `/workspace/PLAN_juice.md`), **pas** dans `.claude/plans/` car ce dossier a une taille limitee.

PLAN_juice.md

@@ -0,0 +1,107 @@
+# Plan: Juice Pass - Animations, Sons, Visuels
+
+## Context
+
+Le jeu fonctionne mais manque de "juice" — les interactions sont plates, pas de sons, les animations sont minimales. L'objectif est de rendre chaque action satisfaisante visuellement et auditivement.
+
+## Principes
+
+- Pas de dépendance externe (pas de fichiers audio .wav/.ogg) — sons générés procéduralement via `AudioStreamGenerator` ou les nœuds Godot (`AudioStreamPlayer` avec des tones synthétiques)
+- Tout est fait en code (pas de .tscn supplémentaires)
+- Les effets sont subtils, jamais bloquants
+
+## Changements par catégorie
+
+### 1. Pièces — Vie et feedback (PieceView.cs)
+
+- **Bounce à la pose** : quand une pièce est placée, scale 0→1.2→1.0 (0.2s, ease back-out)
+- **Pulse quand porte un colis** : le cargo indicator pulse doucement (scale 1.0↔1.2, loop)
+- **Ombre sous la pièce** : un cercle sombre semi-transparent (alpha 0.15) légèrement décalé en bas
+- **Lettre de la pièce** : utiliser le nom complet court au lieu de la lettre seule pour plus de clarté
+
+### 2. Trajectoires (TrajectView.cs)
+
+- **Flèche directionnelle** : ajouter un triangle au bout de la ligne pour montrer le sens
+- **Pulse pendant la simulation** : la ligne pulse (alpha oscille 0.3↔0.6) quand la sim tourne
+- **Couleur par type de pièce** : la trajectoire reprend la couleur de la pièce
+
+### 3. Animations de tour (EventAnimator.cs)
+
+- **Production** : particules (petits carrés colorés) qui jaillissent de la cellule de production + scale bounce de la cellule
+- **Transfert** : le cargo slide laisse une traînée (2-3 carrés plus petits qui suivent avec délai) + ease back-out pour un effet de "whip"
+- **Mouvement** : les pièces se soulèvent légèrement (scale 1.0→1.1→1.0 pendant le déplacement) pour donner l'impression de vol
+- **Destruction** : la pièce se réduit (scale→0) + rotation + particules rouges éclatantes au lieu d'un simple flash
+- **Victoire** : pluie de confettis dorés sur tout l'écran
+
+### 4. Cellules (CellView.cs)
+
+- **Hover amélioré** : la cellule survolée fait un léger scale-up (1.0→1.03) + outline pulse
+- **Highlight de placement** : les cellules valides pulsent doucement (alpha oscille)
+
+### 5. UI — Contrôles et panneaux
+
+**ControlBar.cs** :
+- Boutons avec style (fond coloré, coins arrondis) au lieu du style par défaut Godot
+- Boutons disabled grayed out visuellement
+
+**MetricsOverlay.cs** :
+- Apparition avec fade-in + scale (0.8→1.0) au lieu d'un Visible=true brutal
+- Les métriques apparaissent une par une avec un petit délai
+
+**LevelSelectScreen.cs** :
+- Cards hover : légère élévation (border-color plus clair) + scale 1.0→1.02
+
+**ObjectivePanel.cs** :
+- Flash vert sur la barre de progression quand une livraison arrive
+- Animation de la jauge (tween de la valeur plutôt qu'un saut)
+
+### 6. Sons procéduraux (nouveau: SfxManager.cs)
+
+Un nœud singleton qui génère des bips synthétiques via `AudioStreamPlayer` :
+- **Placement** : bip court montant (C5, 0.08s)
+- **Production** : bip grave doux (C3, 0.1s)
+- **Transfert** : swoosh (bruit blanc filtré, 0.15s)
+- **Livraison à demande** : ding satisfaisant (C5+E5 chord, 0.2s)
+- **Mouvement** : léger whoosh (bruit blanc très court, 0.05s)
+- **Destruction** : crunch descendant (C4→C2, 0.15s)
+- **Victoire** : arpège majeur montant (C4-E4-G4-C5, 0.5s)
+- **Clic UI** : tick léger (0.02s)
+
+Implémenté avec `AudioStreamGenerator` pour les tones, buffer rempli avec des sinusoïdes + enveloppe ADSR simple.
+
+### 7. Transitions (Main.cs)
+
+- **Fade in/out** entre level select et gameplay : ColorRect noir plein écran, alpha 1→0 (0.4s)
+- **Camera** : zoom léger quand la simulation démarre (1.0→0.95→1.0)
+
+## Fichiers à modifier
+
+| Fichier | Changements |
+|---------|-------------|
+| `Scripts/Pieces/PieceView.cs` | Ombre, bounce, cargo pulse |
+| `Scripts/Pieces/TrajectView.cs` | Flèche, pulse, couleur |
+| `Scripts/Presentation/EventAnimator.cs` | Particules, trails, destruction améliorée, confettis victoire |
+| `Scripts/Board/CellView.cs` | Hover scale, highlight pulse |
+| `Scripts/UI/ControlBar.cs` | Boutons stylés |
+| `Scripts/UI/MetricsOverlay.cs` | Fade-in, métriques séquentielles |
+| `Scripts/UI/LevelSelectScreen.cs` | Card hover effects |
+| `Scripts/UI/ObjectivePanel.cs` | Flash vert, tween jauge |
+| `Scripts/Main.cs` | Fade transition, camera juice |
+| `Scripts/Presentation/SfxManager.cs` | **NOUVEAU** — sons procéduraux |
+
+## Ordre d'implémentation
+
+1. SfxManager (fondation audio)
+2. PieceView (bounce, ombre, cargo pulse)
+3. EventAnimator (particules, trails, destruction, confettis)
+4. CellView (hover, highlight pulse)
+5. TrajectView (flèche, pulse)
+6. UI polish (ControlBar, MetricsOverlay, ObjectivePanel, LevelSelectScreen)
+7. Transitions (Main.cs fade, camera)
+
+## Vérification
+
+- Lancer le jeu, vérifier chaque animation visuellement
+- S'assurer que les sons ne sont pas trop forts ou gênants
+- Vérifier que les animations n'interfèrent pas avec le gameplay (pas de blocage)
+- `dotnet test` pour s'assurer que l'engine n'est pas impacté

Scripts/Board/CellView.cs

@@ -7,6 +7,7 @@ public partial class CellView : Node2D
 {
     private ColorRect _background = null!;
     private ColorRect _highlight = null!;
+    private ColorRect _innerShadow = null!;
     private Label _label = null!;
 
     // Hover outline (4 thin rects forming a border)
@@ -17,13 +18,14 @@ public partial class CellView : Node2D
 
     public Coords Coords { get; private set; }
 
-    private static readonly Color LightColor = new("#F0D9B5");
-    private static readonly Color DarkColor = new("#B58863");
-    private static readonly Color WallColor = new("#555555");
-    private static readonly Color ProductionColor = new("#6B8E5A");
-    private static readonly Color DemandColor = new("#C9A833");
+    // Warmer, more grounded palette
+    private static readonly Color LightColor = new("#E8D5A8");    // warm parchment
+    private static readonly Color DarkColor = new("#A07850");      // warm walnut
+    private static readonly Color WallColor = new("#3A3A3A");      // charcoal
+    private static readonly Color ProductionColor = new("#4A6E3A"); // deep forest
+    private static readonly Color DemandColor = new("#B8942A");     // aged gold
     private static readonly Color HighlightColor = new("#44FF4444");
-    private static readonly Color HoverOutlineColor = new("#FFFFFFAA");
+    private static readonly Color HoverOutlineColor = new("#FFFFFF88");
 
     private const int OutlineWidth = 2;
 
@@ -49,6 +51,17 @@ public partial class CellView : Node2D
         };
         AddChild(_background);
 
+        // Subtle inner shadow for depth (top-left lit, bottom-right dark)
+        _innerShadow = new ColorRect
+        {
+            Size = new Vector2(cellSize, cellSize),
+            Position = Vector2.Zero,
+            Color = new Color(0, 0, 0, 0.06f),
+            Visible = cellType == CellType.Empty,
+            MouseFilter = Control.MouseFilterEnum.Ignore
+        };
+        AddChild(_innerShadow);
+
         _highlight = new ColorRect
         {
             Size = new Vector2(cellSize, cellSize),
@@ -60,56 +73,36 @@ public partial class CellView : Node2D
         AddChild(_highlight);
 
         // Hover outline (4 border rects)
-        _hoverTop = new ColorRect
-        {
-            Size = new Vector2(cellSize, OutlineWidth),
-            Position = Vector2.Zero,
-            Color = HoverOutlineColor,
-            Visible = false,
-            MouseFilter = Control.MouseFilterEnum.Ignore
-        };
-        AddChild(_hoverTop);
-
-        _hoverBottom = new ColorRect
-        {
-            Size = new Vector2(cellSize, OutlineWidth),
-            Position = new Vector2(0, cellSize - OutlineWidth),
-            Color = HoverOutlineColor,
-            Visible = false,
-            MouseFilter = Control.MouseFilterEnum.Ignore
-        };
-        AddChild(_hoverBottom);
-
-        _hoverLeft = new ColorRect
-        {
-            Size = new Vector2(OutlineWidth, cellSize),
-            Position = Vector2.Zero,
-            Color = HoverOutlineColor,
-            Visible = false,
-            MouseFilter = Control.MouseFilterEnum.Ignore
-        };
-        AddChild(_hoverLeft);
-
-        _hoverRight = new ColorRect
-        {
-            Size = new Vector2(OutlineWidth, cellSize),
-            Position = new Vector2(cellSize - OutlineWidth, 0),
-            Color = HoverOutlineColor,
-            Visible = false,
-            MouseFilter = Control.MouseFilterEnum.Ignore
-        };
-        AddChild(_hoverRight);
+        _hoverTop = CreateBorderRect(new Vector2(cellSize, OutlineWidth), Vector2.Zero);
+        _hoverBottom = CreateBorderRect(new Vector2(cellSize, OutlineWidth), new Vector2(0, cellSize - OutlineWidth));
+        _hoverLeft = CreateBorderRect(new Vector2(OutlineWidth, cellSize), Vector2.Zero);
+        _hoverRight = CreateBorderRect(new Vector2(OutlineWidth, cellSize), new Vector2(cellSize - OutlineWidth, 0));
 
         _label = new Label
         {
-            Position = new Vector2(2, 2),
+            Position = new Vector2(4, 3),
             Text = "",
             MouseFilter = Control.MouseFilterEnum.Ignore
         };
-        _label.AddThemeFontSizeOverride("font_size", 10);
+        _label.AddThemeFontSizeOverride("font_size", 9);
+        _label.AddThemeColorOverride("font_color", new Color(1, 1, 1, 0.7f));
         AddChild(_label);
     }
 
+    private ColorRect CreateBorderRect(Vector2 size, Vector2 pos)
+    {
+        var rect = new ColorRect
+        {
+            Size = size,
+            Position = pos,
+            Color = HoverOutlineColor,
+            Visible = false,
+            MouseFilter = Control.MouseFilterEnum.Ignore
+        };
+        AddChild(rect);
+        return rect;
+    }
+
     public void SetLabel(string text) => _label.Text = text;
     public void SetHighlight(bool on) => _highlight.Visible = on;
 
@@ -128,14 +121,15 @@ public partial class CellView : Node2D
     }
 
     /// <summary>
-    /// Brief white flash on the cell to signal production.
+    /// Production pulse: warm glow that radiates outward.
     /// </summary>
     public void FlashProduce(float duration = 0.3f)
     {
-        _highlight.Color = new Color(1, 1, 1, 0.5f);
+        _highlight.Color = new Color(0.9f, 0.85f, 0.5f, 0.55f); // warm golden
         _highlight.Visible = true;
         var tween = CreateTween();
-        tween.TweenProperty(_highlight, "color", new Color(1, 1, 1, 0f), duration);
+        tween.TweenProperty(_highlight, "color", new Color(0.9f, 0.85f, 0.5f, 0f), duration)
+            .SetEase(Tween.EaseType.Out).SetTrans(Tween.TransitionType.Cubic);
         tween.TweenCallback(Callable.From(() => _highlight.Visible = false));
     }
 }

Scripts/Main.cs

@@ -1,4 +1,5 @@
 using Godot;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using Chessistics.Engine.Commands;
@@ -37,6 +38,7 @@ public partial class Main : Node2D
 	private PanelContainer _sidePanel = null!;
 	private PanelContainer _controlBarWrapper = null!;
 	private Camera2D _camera = null!;
+	private ColorRect _fadeOverlay = null!;
 
 	// Simulation timer
 	private Godot.Timer _simTimer = null!;
@@ -58,6 +60,9 @@ public partial class Main : Node2D
 		BuildSceneTree();
 		ConnectSignals();
 		ShowLevelSelect();
+
+		// Fade in from black on startup
+		FadeIn(0.5f);
 	}
 
 	public override void _UnhandledInput(InputEvent @event)
@@ -73,12 +78,33 @@ public partial class Main : Node2D
 		}
 	}
 
+	private void FadeIn(float duration)
+	{
+		_fadeOverlay.Color = new Color(0, 0, 0, 1);
+		var tween = CreateTween();
+		tween.TweenProperty(_fadeOverlay, "color:a", 0f, duration)
+			.SetEase(Tween.EaseType.Out);
+	}
+
+	private void FadeOut(float duration, Action onComplete)
+	{
+		_fadeOverlay.Color = new Color(0, 0, 0, 0);
+		var tween = CreateTween();
+		tween.TweenProperty(_fadeOverlay, "color:a", 1f, duration)
+			.SetEase(Tween.EaseType.In);
+		tween.TweenCallback(Callable.From(onComplete));
+	}
+
 	private void BuildSceneTree()
 	{
 		// Camera
 		_camera = new Camera2D { Enabled = true };
 		AddChild(_camera);
 
+		// SFX
+		var sfx = new SfxManager();
+		AddChild(sfx);
+
 		// Board
 		_boardView = new BoardView();
 		AddChild(_boardView);
@@ -204,6 +230,15 @@ public partial class Main : Node2D
 		_levelSelectScreen.SetAnchorsPreset(Control.LayoutPreset.FullRect);
 		uiRoot.AddChild(_levelSelectScreen);
 
+		// --- Fade overlay (on top of everything) ---
+		_fadeOverlay = new ColorRect
+		{
+			Color = new Color(0, 0, 0, 1),
+			MouseFilter = Control.MouseFilterEnum.Ignore
+		};
+		_fadeOverlay.SetAnchorsPreset(Control.LayoutPreset.FullRect);
+		uiRoot.AddChild(_fadeOverlay);
+
 		// Initialize animator
 		_eventAnimator.Initialize(_boardView, _objectivePanel, _controlBar, _metricsOverlay);
 	}
@@ -254,8 +289,15 @@ public partial class Main : Node2D
 
 	private void OnLevelSelected(int levelIndex)
 	{
+		SfxManager.Instance?.PlayClick();
 		_currentLevelIndex = levelIndex;
+
+		// Fade out, load, fade in
+		FadeOut(0.25f, () =>
+		{
 			LoadLevel(levelIndex);
+			FadeIn(0.3f);
+		});
 	}
 
 	private void LoadLevel(int index)
@@ -370,17 +412,13 @@ public partial class Main : Node2D
 
 	private void CreatePieceVisual(PiecePlacedEvent placed)
 	{
+		SfxManager.Instance?.PlayPlace();
+
 		var pieceView = new PieceView();
 		pieceView.Setup(placed.PieceId, placed.Kind, placed.Start, placed.End, _boardView);
 		_boardView.AddChild(pieceView);
 
-		var color = placed.Kind switch
-		{
-			PieceKind.Rook => new Color("#4A7AB5"),
-			PieceKind.Bishop => new Color("#B54A8E"),
-			PieceKind.Knight => new Color("#B5824A"),
-			_ => Colors.White
-		};
+		var color = PieceView.GetPieceColor(placed.Kind);
 
 		var trajectView = new TrajectView();
 		trajectView.Setup(placed.PieceId,

Scripts/Pieces/PieceView.cs

@@ -6,21 +6,25 @@ namespace Chessistics.Scripts.Pieces;
 
 public partial class PieceView : Node2D
 {
+    private Sprite2D _shadow = null!;
     private Sprite2D _sprite = null!;
     private ColorRect _cargoIndicator = null!;
     private Label _label = null!;
+    private Tween? _cargoPulseTween;
 
     public int PieceId { get; private set; }
     public PieceKind Kind { get; private set; }
     public Coords StartCell { get; private set; }
     public Coords EndCell { get; private set; }
 
-    private static readonly Color PawnColor = new("#7AB54A");
-    private static readonly Color RookColor = new("#4A7AB5");
-    private static readonly Color BishopColor = new("#B54A8E");
-    private static readonly Color KnightColor = new("#B5824A");
-    private static readonly Color WoodCargoColor = new("#8B6914");
-    private static readonly Color StoneCargoColor = new("#808080");
+    // Muted, earthy palette — teal, sienna, gold tones
+    private static readonly Color PawnColor = new("#5A8C6B");     // sage green
+    private static readonly Color RookColor = new("#3D6B8E");     // deep teal
+    private static readonly Color BishopColor = new("#8E5A6B");   // dusty rose
+    private static readonly Color KnightColor = new("#8E7A3D");   // burnt sienna
+    private static readonly Color WoodCargoColor = new("#A67C32");
+    private static readonly Color StoneCargoColor = new("#7A7A7A");
+    private static readonly Color ShadowColor = new Color(0, 0, 0, 0.18f);
 
     public void Setup(int pieceId, PieceKind kind, Coords startCell, Coords endCell, BoardView boardView)
     {
@@ -31,26 +35,36 @@ public partial class PieceView : Node2D
 
         Position = boardView.CoordsToPixel(startCell);
 
-        var color = kind switch
-        {
-            PieceKind.Pawn => PawnColor,
-            PieceKind.Rook => RookColor,
-            PieceKind.Bishop => BishopColor,
-            PieceKind.Knight => KnightColor,
-            _ => Colors.White
-        };
+        var color = GetPieceColor(kind);
 
-        // Piece body (circle)
-        _sprite = new Sprite2D();
-        var texture = new GradientTexture2D
+        // Shadow (slightly offset, rendered first)
+        _shadow = new Sprite2D();
+        var shadowTex = new GradientTexture2D
         {
-            Width = 48,
-            Height = 48,
+            Width = 44, Height = 44,
             Fill = GradientTexture2D.FillEnum.Radial,
             Gradient = new Gradient()
         };
-        texture.Gradient.SetColor(0, color);
-        texture.Gradient.SetColor(1, color.Darkened(0.3f));
+        shadowTex.Gradient.SetColor(0, ShadowColor);
+        shadowTex.Gradient.SetColor(1, new Color(0, 0, 0, 0));
+        _shadow.Texture = shadowTex;
+        _shadow.Position = new Vector2(3, 5); // subtle offset down-right
+        AddChild(_shadow);
+
+        // Piece body (circle with inner glow)
+        _sprite = new Sprite2D();
+        var texture = new GradientTexture2D
+        {
+            Width = 48, Height = 48,
+            Fill = GradientTexture2D.FillEnum.Radial,
+            Gradient = new Gradient()
+        };
+        texture.Gradient.Colors = [
+            color.Lightened(0.15f),  // bright center
+            color,                    // main color
+            color.Darkened(0.25f)     // dark rim
+        ];
+        texture.Gradient.Offsets = [0f, 0.5f, 1f];
         _sprite.Texture = texture;
         AddChild(_sprite);
 
@@ -71,25 +85,46 @@ public partial class PieceView : Node2D
             MouseFilter = Control.MouseFilterEnum.Ignore
         };
         _label.AddThemeFontSizeOverride("font_size", 16);
-        _label.AddThemeColorOverride("font_color", Colors.White);
+        _label.AddThemeColorOverride("font_color", new Color(1, 1, 1, 0.9f));
         AddChild(_label);
 
         // Cargo indicator (hidden by default)
         _cargoIndicator = new ColorRect
         {
-            Size = new Vector2(14, 14),
-            Position = new Vector2(-7, -30),
+            Size = new Vector2(12, 12),
+            Position = new Vector2(-6, -28),
             Visible = false,
             MouseFilter = Control.MouseFilterEnum.Ignore
         };
         AddChild(_cargoIndicator);
+
+        // Entrance animation: scale bounce
+        Scale = Vector2.Zero;
+        var entranceTween = CreateTween();
+        entranceTween.TweenProperty(this, "scale", new Vector2(1.15f, 1.15f), 0.12f)
+            .SetEase(Tween.EaseType.Out).SetTrans(Tween.TransitionType.Back);
+        entranceTween.TweenProperty(this, "scale", Vector2.One, 0.08f)
+            .SetEase(Tween.EaseType.InOut);
     }
 
+    public static Color GetPieceColor(PieceKind kind) => kind switch
+    {
+        PieceKind.Pawn => PawnColor,
+        PieceKind.Rook => RookColor,
+        PieceKind.Bishop => BishopColor,
+        PieceKind.Knight => KnightColor,
+        _ => Colors.White
+    };
+
     public void SetCargo(CargoType? cargo)
     {
+        _cargoPulseTween?.Kill();
+        _cargoPulseTween = null;
+
         if (cargo == null)
         {
             _cargoIndicator.Visible = false;
+            _cargoIndicator.Scale = Vector2.One;
             return;
         }
 
@@ -100,6 +135,16 @@ public partial class PieceView : Node2D
             CargoType.Stone => StoneCargoColor,
             _ => Colors.White
         };
+
+        // Cargo pulse: gentle breathing
+        _cargoPulseTween = CreateTween();
+        _cargoPulseTween.SetLoops();
+        _cargoPulseTween.TweenProperty(_cargoIndicator, "scale",
+            new Vector2(1.25f, 1.25f), 0.5f)
+            .SetEase(Tween.EaseType.InOut).SetTrans(Tween.TransitionType.Sine);
+        _cargoPulseTween.TweenProperty(_cargoIndicator, "scale",
+            Vector2.One, 0.5f)
+            .SetEase(Tween.EaseType.InOut).SetTrans(Tween.TransitionType.Sine);
     }
 
     public void AnimateMoveTo(Vector2 target, float duration = 0.3f)
@@ -107,7 +152,6 @@ public partial class PieceView : Node2D
         var tween = CreateTween();
         if (Kind == PieceKind.Knight)
         {
-            // Arc animation for knight
             var mid = (Position + target) / 2 + new Vector2(0, -30);
             tween.TweenMethod(Callable.From<float>(t =>
             {
@@ -119,7 +163,8 @@ public partial class PieceView : Node2D
         }
         else
         {
-            tween.TweenProperty(this, "position", target, duration);
+            tween.TweenProperty(this, "position", target, duration)
+                .SetEase(Tween.EaseType.InOut).SetTrans(Tween.TransitionType.Sine);
         }
     }
 }

Scripts/Pieces/TrajectView.cs

@@ -5,15 +5,34 @@ namespace Chessistics.Scripts.Pieces;
 public partial class TrajectView : Line2D
 {
     public int PieceId { get; private set; }
+    private Polygon2D? _arrow;
 
     public void Setup(int pieceId, Vector2 from, Vector2 to, Color color)
     {
         PieceId = pieceId;
-        Width = 3f;
-        DefaultColor = new Color(color, 0.5f);
+        Width = 2.5f;
+        DefaultColor = new Color(color, 0.35f);
+        Antialiased = true;
         ClearPoints();
         AddPoint(from);
         AddPoint(to);
         ZIndex = -1;
+
+        // Arrowhead at the end point
+        var dir = (to - from).Normalized();
+        var perp = new Vector2(-dir.Y, dir.X);
+        float arrowSize = 8f;
+        var tip = to - dir * 4f; // slightly inset from end
+        var baseL = tip - dir * arrowSize + perp * arrowSize * 0.5f;
+        var baseR = tip - dir * arrowSize - perp * arrowSize * 0.5f;
+
+        _arrow = new Polygon2D
+        {
+            Polygon = [tip - Position, baseL - Position, baseR - Position],
+            Color = new Color(color, 0.4f),
+            Position = Vector2.Zero
+        };
+        // Position relative to parent, not this Line2D
+        AddChild(_arrow);
     }
 }

Scripts/Presentation/EventAnimator.cs

@@ -23,14 +23,14 @@ public partial class EventAnimator : Node
     private bool _animating;
     public bool IsAnimating => _animating;
 
-    private static readonly Color WoodCargoColor = new("#8B6914");
-    private static readonly Color StoneCargoColor = new("#808080");
+    private static readonly Color WoodCargoColor = new("#A67C32");
+    private static readonly Color StoneCargoColor = new("#7A7A7A");
 
-    private const float ProduceDuration = 0.3f;
-    private const float TransferDuration = 0.25f;
-    private const float MoveDuration = 0.3f;
-    private const float KnightMoveDuration = 0.4f;
-    private const float DestroyDuration = 0.3f;
+    private const float ProduceDuration = 0.35f;
+    private const float TransferDuration = 0.28f;
+    private const float MoveDuration = 0.32f;
+    private const float KnightMoveDuration = 0.42f;
+    private const float DestroyDuration = 0.45f;
 
     [Signal]
     public delegate void TurnAnimationCompletedEventHandler();
@@ -107,6 +107,8 @@ public partial class EventAnimator : Node
                     FlushPhases(tween, produceEvents, transferEvents, moveEvents, collisionEvents);
                     tween.TweenCallback(Callable.From(() =>
                     {
+                        SfxManager.Instance?.PlayVictory();
+                        SpawnConfetti();
                         _metricsOverlay.ShowMetrics(victory.Metrics);
                         EmitSignal(SignalName.VictoryReached);
                     }));
@@ -137,45 +139,50 @@ public partial class EventAnimator : Node
         List<PieceMovedEvent> moveEvents,
         List<PieceDestroyedEvent> collisionEvents)
     {
-        // Phase 1: Produce — flash production cells
+        // Phase 1: Produce — warm golden flash + particle burst
         if (produceEvents.Count > 0)
         {
+            var captured = produceEvents.ToList();
             tween.TweenCallback(Callable.From(() =>
             {
-                foreach (var evt in produceEvents.ToList())
+                SfxManager.Instance?.PlayProduce();
+                foreach (var evt in captured)
                 {
                     var cell = _boardView.GetCellView(evt.ProductionCell);
                     cell?.FlashProduce(ProduceDuration);
+                    SpawnProduceParticles(evt.ProductionCell, evt.Type);
                 }
             }));
             tween.TweenInterval(ProduceDuration);
             produceEvents.Clear();
         }
 
-        // Phase 2: Transfers — animate cargo sliding from giver to receiver
+        // Phase 2: Transfers — cargo slides with trail particles
         if (transferEvents.Count > 0)
         {
-            // Capture the events list before clearing
             var eventsToAnimate = transferEvents.ToList();
 
-            // Step 1: remove cargo from givers + spawn sliding cargo sprites
             tween.TweenCallback(Callable.From(() =>
             {
+                bool hasDelivery = false;
                 foreach (var evt in eventsToAnimate)
                 {
                     if (evt is CargoTransferredEvent transfer)
                     {
-                        // Remove cargo indicator from giver
                         if (transfer.GivingPieceId != null && _pieceViews.ContainsKey(transfer.GivingPieceId.Value))
                             _pieceViews[transfer.GivingPieceId.Value].SetCargo(null);
 
-                        // Create sliding cargo sprite
                         SpawnCargoSlide(transfer);
+
+                        if (transfer.ReceivingPieceId == null) hasDelivery = true;
                     }
                 }
+                if (hasDelivery)
+                    SfxManager.Instance?.PlayDeliver();
+                else
+                    SfxManager.Instance?.PlayTransfer();
             }));
 
-            // Step 2: wait for slide, then show cargo on receivers + update demand progress
             tween.TweenInterval(TransferDuration);
             tween.TweenCallback(Callable.From(() =>
             {
@@ -196,9 +203,10 @@ public partial class EventAnimator : Node
             transferEvents.Clear();
         }
 
-        // Phase 3: Movement — all pieces move simultaneously
+        // Phase 3: Movement — simultaneous, with sfx
         if (moveEvents.Count > 0)
         {
+            tween.TweenCallback(Callable.From(() => SfxManager.Instance?.PlayMove()));
             tween.SetParallel(true);
             foreach (var moved in moveEvents)
             {
@@ -206,74 +214,218 @@ public partial class EventAnimator : Node
                 {
                     var target = _boardView.CoordsToPixel(moved.To);
                     float duration = pv.Kind == PieceKind.Knight ? KnightMoveDuration : MoveDuration;
-                    tween.TweenProperty(pv, "position", target, duration);
+                    tween.TweenProperty(pv, "position", target, duration)
+                        .SetEase(Tween.EaseType.InOut).SetTrans(Tween.TransitionType.Sine);
                 }
             }
             tween.SetParallel(false);
             moveEvents.Clear();
         }
 
-        // Phase 4: Collision/Destruction
+        // Phase 4: Collision/Destruction — shrink + spin + particles
         if (collisionEvents.Count > 0)
         {
-            tween.SetParallel(true);
-            foreach (var destroyed in collisionEvents)
-            {
-                var pieceId = destroyed.PieceId;
+            var captured = collisionEvents.ToList();
             tween.TweenCallback(Callable.From(() =>
             {
-                    FlashPiece(pieceId);
-                    UnregisterPiece(pieceId);
-                }));
+                SfxManager.Instance?.PlayDestroy();
+                foreach (var destroyed in captured)
+                {
+                    if (_pieceViews.TryGetValue(destroyed.PieceId, out var pv))
+                    {
+                        SpawnDestroyParticles(pv.Position);
+
+                        var dt = pv.CreateTween();
+                        dt.SetParallel(true);
+                        dt.TweenProperty(pv, "scale", Vector2.Zero, DestroyDuration)
+                            .SetEase(Tween.EaseType.In).SetTrans(Tween.TransitionType.Back);
+                        dt.TweenProperty(pv, "rotation", Mathf.Pi * 2f, DestroyDuration);
+                        dt.TweenProperty(pv, "modulate:a", 0f, DestroyDuration);
                     }
-            tween.SetParallel(false);
+                }
+            }));
             tween.TweenInterval(DestroyDuration);
+            tween.TweenCallback(Callable.From(() =>
+            {
+                foreach (var destroyed in captured)
+                    UnregisterPiece(destroyed.PieceId);
+            }));
             collisionEvents.Clear();
         }
     }
 
-    /// <summary>
-    /// Creates a temporary colored square that slides from the giver to the receiver.
-    /// </summary>
+    // --- Visual Effects ---
+
     private void SpawnCargoSlide(CargoTransferredEvent transfer)
     {
         var from = _boardView.CoordsToPixel(transfer.From);
         var to = _boardView.CoordsToPixel(transfer.To);
-        var color = transfer.Type switch
+        var color = GetCargoColor(transfer.Type);
+
+        var container = new Node2D { Position = from };
+        _boardView.AddChild(container);
+
+        // Main cargo square
+        var main = new ColorRect
+        {
+            Size = new Vector2(12, 12),
+            Position = new Vector2(-6, -6),
+            Color = color,
+            MouseFilter = Control.MouseFilterEnum.Ignore
+        };
+        container.AddChild(main);
+
+        // Trail particles (2 smaller squares that follow with delay)
+        for (int i = 1; i <= 2; i++)
+        {
+            float trailDelay = i * 0.04f;
+            float trailSize = 12f - i * 3f;
+            float trailAlpha = 0.6f - i * 0.2f;
+
+            var trail = new ColorRect
+            {
+                Size = new Vector2(trailSize, trailSize),
+                Position = new Vector2(-trailSize / 2f, -trailSize / 2f),
+                Color = new Color(color, trailAlpha),
+                MouseFilter = Control.MouseFilterEnum.Ignore
+            };
+            var trailContainer = new Node2D { Position = from };
+            trailContainer.AddChild(trail);
+            _boardView.AddChild(trailContainer);
+
+            var trailTween = trailContainer.CreateTween();
+            trailTween.TweenInterval(trailDelay);
+            trailTween.TweenProperty(trailContainer, "position", to, TransferDuration - trailDelay)
+                .SetEase(Tween.EaseType.Out).SetTrans(Tween.TransitionType.Back);
+            trailTween.TweenCallback(Callable.From(() => trailContainer.QueueFree()));
+        }
+
+        // Main slide with whip easing
+        var slideTween = container.CreateTween();
+        slideTween.TweenProperty(container, "position", to, TransferDuration)
+            .SetEase(Tween.EaseType.Out).SetTrans(Tween.TransitionType.Back);
+        slideTween.TweenCallback(Callable.From(() => container.QueueFree()));
+    }
+
+    private void SpawnProduceParticles(Coords cell, CargoType type)
+    {
+        var center = _boardView.CoordsToPixel(cell);
+        var color = GetCargoColor(type);
+        var rng = new Random();
+
+        for (int i = 0; i < 6; i++)
+        {
+            float angle = i * Mathf.Pi * 2f / 6f + (float)rng.NextDouble() * 0.5f;
+            float dist = 25f + (float)rng.NextDouble() * 15f;
+            float size = 4f + (float)rng.NextDouble() * 4f;
+
+            var particle = new ColorRect
+            {
+                Size = new Vector2(size, size),
+                Position = new Vector2(-size / 2f, -size / 2f),
+                Color = new Color(color, 0.8f),
+                MouseFilter = Control.MouseFilterEnum.Ignore
+            };
+            var pNode = new Node2D { Position = center };
+            pNode.AddChild(particle);
+            _boardView.AddChild(pNode);
+
+            var target = center + new Vector2(Mathf.Cos(angle), Mathf.Sin(angle)) * dist;
+            var pt = pNode.CreateTween();
+            pt.SetParallel(true);
+            pt.TweenProperty(pNode, "position", target, ProduceDuration * 0.8f)
+                .SetEase(Tween.EaseType.Out).SetTrans(Tween.TransitionType.Cubic);
+            pt.TweenProperty(pNode, "modulate:a", 0f, ProduceDuration);
+            pt.SetParallel(false);
+            pt.TweenCallback(Callable.From(() => pNode.QueueFree()));
+        }
+    }
+
+    private void SpawnDestroyParticles(Vector2 position)
+    {
+        var rng = new Random();
+        var red = new Color(0.9f, 0.25f, 0.2f);
+
+        for (int i = 0; i < 10; i++)
+        {
+            float angle = (float)rng.NextDouble() * Mathf.Pi * 2f;
+            float dist = 20f + (float)rng.NextDouble() * 30f;
+            float size = 3f + (float)rng.NextDouble() * 5f;
+
+            var particle = new ColorRect
+            {
+                Size = new Vector2(size, size),
+                Position = new Vector2(-size / 2f, -size / 2f),
+                Color = new Color(red, 0.9f),
+                MouseFilter = Control.MouseFilterEnum.Ignore
+            };
+            var pNode = new Node2D { Position = position };
+            pNode.AddChild(particle);
+            _boardView.AddChild(pNode);
+
+            var target = position + new Vector2(Mathf.Cos(angle), Mathf.Sin(angle)) * dist;
+            var pt = pNode.CreateTween();
+            pt.SetParallel(true);
+            pt.TweenProperty(pNode, "position", target, DestroyDuration * 0.7f)
+                .SetEase(Tween.EaseType.Out).SetTrans(Tween.TransitionType.Cubic);
+            pt.TweenProperty(pNode, "modulate:a", 0f, DestroyDuration);
+            pt.TweenProperty(pNode, "scale", Vector2.Zero, DestroyDuration)
+                .SetEase(Tween.EaseType.In);
+            pt.SetParallel(false);
+            pt.TweenCallback(Callable.From(() => pNode.QueueFree()));
+        }
+    }
+
+    private void SpawnConfetti()
+    {
+        var rng = new Random();
+        var viewport = GetViewport().GetVisibleRect().Size;
+        Color[] confettiColors = [
+            new("#FFD700"), new("#FF6B35"), new("#3D8E5A"),
+            new("#4A7AB5"), new("#B54A8E"), new("#E8D5A8")
+        ];
+
+        for (int i = 0; i < 40; i++)
+        {
+            float x = (float)rng.NextDouble() * viewport.X;
+            float startY = -20f;
+            float endY = viewport.Y + 50f;
+            float size = 4f + (float)rng.NextDouble() * 6f;
+            float duration = 1.5f + (float)rng.NextDouble() * 1.5f;
+            float delay = (float)rng.NextDouble() * 0.5f;
+            float drift = ((float)rng.NextDouble() - 0.5f) * 80f;
+
+            var confetti = new ColorRect
+            {
+                Size = new Vector2(size, size * 0.5f),
+                Color = confettiColors[rng.Next(confettiColors.Length)],
+                MouseFilter = Control.MouseFilterEnum.Ignore
+            };
+
+            // Confetti needs to be in screen space (CanvasLayer)
+            var parent = GetTree().Root;
+            var cNode = new Node2D { Position = new Vector2(x, startY) };
+            cNode.AddChild(confetti);
+            parent.AddChild(cNode);
+
+            var ct = cNode.CreateTween();
+            ct.TweenInterval(delay);
+            ct.SetParallel(true);
+            ct.TweenProperty(cNode, "position", new Vector2(x + drift, endY), duration)
+                .SetEase(Tween.EaseType.In).SetTrans(Tween.TransitionType.Sine);
+            ct.TweenProperty(cNode, "rotation", (float)rng.NextDouble() * Mathf.Pi * 4f, duration);
+            ct.SetParallel(false);
+            ct.TweenCallback(Callable.From(() => cNode.QueueFree()));
+        }
+    }
+
+    private static Color GetCargoColor(CargoType type) => type switch
     {
         CargoType.Wood => WoodCargoColor,
         CargoType.Stone => StoneCargoColor,
         _ => Colors.White
     };
 
-        var sprite = new ColorRect
-        {
-            Size = new Vector2(14, 14),
-            Position = new Vector2(-7, -7),
-            Color = color,
-            MouseFilter = Control.MouseFilterEnum.Ignore
-        };
-
-        var container = new Node2D { Position = from };
-        container.AddChild(sprite);
-        _boardView.AddChild(container);
-
-        var slideTween = container.CreateTween();
-        slideTween.TweenProperty(container, "position", to, TransferDuration)
-            .SetEase(Tween.EaseType.InOut)
-            .SetTrans(Tween.TransitionType.Cubic);
-        slideTween.TweenCallback(Callable.From(() => container.QueueFree()));
-    }
-
-    private void FlashPiece(int pieceId)
-    {
-        if (!_pieceViews.TryGetValue(pieceId, out var pv)) return;
-        var tween = pv.CreateTween();
-        tween.TweenProperty(pv, "modulate", new Color(1, 0.2f, 0.2f), 0.1f);
-        tween.TweenProperty(pv, "modulate", Colors.White, 0.1f);
-        tween.SetLoops(3);
-    }
-
     public void ResetPiecePositions(BoardSnapshot snapshot)
     {
         foreach (var ps in snapshot.Pieces)

Scripts/Presentation/SfxManager.cs

@@ -0,0 +1,160 @@
+using Godot;
+using System;
+
+namespace Chessistics.Scripts.Presentation;
+
+/// <summary>
+/// Procedural sound effects via synthesized waveforms.
+/// No external audio files needed — everything is generated in code.
+/// </summary>
+public partial class SfxManager : Node
+{
+    private const int SampleRate = 22050;
+    private const float MasterVolume = 0.15f;
+
+    public static SfxManager? Instance { get; private set; }
+
+    public override void _Ready()
+    {
+        Instance = this;
+    }
+
+    // --- Public API ---
+
+    public void PlayPlace() => PlayTone(523.25f, 0.08f, vol: 0.5f); // C5 short blip
+    public void PlayProduce() => PlayTone(130.81f, 0.12f, vol: 0.3f, wave: Wave.Triangle); // C3 warm
+    public void PlayTransfer() => PlayNoise(0.12f, vol: 0.15f); // filtered swoosh
+    public void PlayDeliver() => PlayChord([523.25f, 659.25f], 0.18f, vol: 0.4f); // C5+E5 ding
+    public void PlayMove() => PlayNoise(0.04f, vol: 0.08f); // tiny whoosh
+    public void PlayDestroy() => PlaySweep(262f, 65f, 0.18f, vol: 0.4f); // descending crunch
+    public void PlayVictory() => PlayArpeggio([262f, 330f, 392f, 523f], 0.12f, vol: 0.35f); // C-E-G-C arp
+    public void PlayClick() => PlayTone(880f, 0.02f, vol: 0.2f); // tiny tick
+
+    // --- Synthesis ---
+
+    private enum Wave { Sine, Triangle, Square }
+
+    private void PlayTone(float freq, float duration, float vol = 0.3f, Wave wave = Wave.Sine)
+    {
+        var samples = GenerateTone(freq, duration, vol, wave);
+        PlaySamples(samples);
+    }
+
+    private void PlayNoise(float duration, float vol = 0.2f)
+    {
+        var count = (int)(SampleRate * duration);
+        var samples = new float[count];
+        var rng = new Random();
+        for (int i = 0; i < count; i++)
+        {
+            float t = (float)i / count;
+            float envelope = Envelope(t);
+            samples[i] = (float)(rng.NextDouble() * 2 - 1) * vol * envelope * MasterVolume;
+        }
+        // Simple low-pass: average with previous sample
+        for (int i = count - 1; i > 0; i--)
+            samples[i] = (samples[i] + samples[i - 1]) * 0.5f;
+        PlaySamples(samples);
+    }
+
+    private void PlayChord(float[] freqs, float duration, float vol = 0.3f)
+    {
+        var count = (int)(SampleRate * duration);
+        var samples = new float[count];
+        foreach (var freq in freqs)
+        {
+            var tone = GenerateTone(freq, duration, vol / freqs.Length, Wave.Sine);
+            for (int i = 0; i < count; i++)
+                samples[i] += tone[i];
+        }
+        PlaySamples(samples);
+    }
+
+    private void PlaySweep(float startFreq, float endFreq, float duration, float vol = 0.3f)
+    {
+        var count = (int)(SampleRate * duration);
+        var samples = new float[count];
+        for (int i = 0; i < count; i++)
+        {
+            float t = (float)i / count;
+            float freq = Mathf.Lerp(startFreq, endFreq, t);
+            float envelope = Envelope(t);
+            float phase = 2f * Mathf.Pi * freq * i / SampleRate;
+            samples[i] = Mathf.Sin(phase) * vol * envelope * MasterVolume;
+        }
+        PlaySamples(samples);
+    }
+
+    private void PlayArpeggio(float[] notes, float noteLength, float vol = 0.3f)
+    {
+        float totalDuration = noteLength * notes.Length;
+        var totalCount = (int)(SampleRate * totalDuration);
+        var samples = new float[totalCount];
+        var noteCount = (int)(SampleRate * noteLength);
+
+        for (int n = 0; n < notes.Length; n++)
+        {
+            int offset = n * noteCount;
+            var tone = GenerateTone(notes[n], noteLength, vol, Wave.Sine);
+            for (int i = 0; i < tone.Length && offset + i < totalCount; i++)
+                samples[offset + i] += tone[i];
+        }
+        PlaySamples(samples);
+    }
+
+    private float[] GenerateTone(float freq, float duration, float vol, Wave wave)
+    {
+        var count = (int)(SampleRate * duration);
+        var samples = new float[count];
+        for (int i = 0; i < count; i++)
+        {
+            float t = (float)i / count;
+            float phase = 2f * Mathf.Pi * freq * i / SampleRate;
+            float value = wave switch
+            {
+                Wave.Triangle => 2f * Mathf.Abs(2f * ((freq * i / SampleRate) % 1f) - 1f) - 1f,
+                Wave.Square => Mathf.Sin(phase) >= 0 ? 1f : -1f,
+                _ => Mathf.Sin(phase)
+            };
+            float envelope = Envelope(t);
+            samples[i] = value * vol * envelope * MasterVolume;
+        }
+        return samples;
+    }
+
+    /// <summary>Simple ADSR-ish envelope: quick attack, sustain, smooth release.</summary>
+    private static float Envelope(float t)
+    {
+        if (t < 0.05f) return t / 0.05f;          // attack
+        if (t < 0.3f) return 1f;                    // sustain
+        return 1f - (t - 0.3f) / 0.7f;             // release
+    }
+
+    private void PlaySamples(float[] samples)
+    {
+        var stream = new AudioStreamWav
+        {
+            Format = AudioStreamWav.FormatEnum.Format16Bits,
+            MixRate = SampleRate,
+            Stereo = false,
+            Data = FloatsToWav16(samples)
+        };
+
+        var player = new AudioStreamPlayer { Stream = stream, VolumeDb = -6f };
+        AddChild(player);
+        player.Finished += () => player.QueueFree();
+        player.Play();
+    }
+
+    private static byte[] FloatsToWav16(float[] samples)
+    {
+        var bytes = new byte[samples.Length * 2];
+        for (int i = 0; i < samples.Length; i++)
+        {
+            short val = (short)(Mathf.Clamp(samples[i], -1f, 1f) * 32767);
+            bytes[i * 2] = (byte)(val & 0xFF);
+            bytes[i * 2 + 1] = (byte)((val >> 8) & 0xFF);
+        }
+        return bytes;
+    }
+}

Scripts/UI/ControlBar.cs

@@ -24,38 +24,92 @@ public partial class ControlBar : HBoxContainer
     private OptionButton _speedSelect = null!;
     private Label _turnLabel = null!;
 
+    private static readonly Color BtnBg = new("#2A2A2E");
+    private static readonly Color BtnHover = new("#3A3A40");
+    private static readonly Color BtnPressed = new("#1A1A1E");
+    private static readonly Color BtnDisabled = new("#1E1E20");
+    private static readonly Color BtnBorder = new("#444448");
+
     public override void _Ready()
     {
-        _playButton = new Button { Text = "▶ PLAY" };
+        AddThemeConstantOverride("separation", 8);
+
+        _playButton = CreateStyledButton("PLAY");
         _playButton.Pressed += () => EmitSignal(SignalName.PlayPressed);
         AddChild(_playButton);
 
-        _pauseButton = new Button { Text = "⏸ PAUSE" };
+        _pauseButton = CreateStyledButton("PAUSE");
         _pauseButton.Pressed += () => EmitSignal(SignalName.PausePressed);
         AddChild(_pauseButton);
 
-        _stepButton = new Button { Text = "⏭ STEP" };
+        _stepButton = CreateStyledButton("STEP");
         _stepButton.Pressed += () => EmitSignal(SignalName.StepPressed);
         AddChild(_stepButton);
 
-        _stopButton = new Button { Text = "⏹ STOP" };
+        _stopButton = CreateStyledButton("STOP");
         _stopButton.Pressed += () => EmitSignal(SignalName.StopPressed);
         AddChild(_stopButton);
 
-        _speedSelect = new OptionButton();
+        // Spacer
+        AddChild(new Control { CustomMinimumSize = new Vector2(12, 0) });
+
+        _speedSelect = new OptionButton { CustomMinimumSize = new Vector2(60, 30) };
         _speedSelect.AddItem("x1", 0);
         _speedSelect.AddItem("x2", 1);
         _speedSelect.AddItem("x4", 2);
         _speedSelect.ItemSelected += OnSpeedSelected;
         AddChild(_speedSelect);
 
+        // Spacer
+        AddChild(new Control { SizeFlagsHorizontal = SizeFlags.ExpandFill });
+
         _turnLabel = new Label { Text = "Coup: --" };
-        _turnLabel.AddThemeFontSizeOverride("font_size", 14);
+        _turnLabel.AddThemeFontSizeOverride("font_size", 13);
+        _turnLabel.AddThemeColorOverride("font_color", new Color("#999999"));
         AddChild(_turnLabel);
 
         UpdateForPhase(SimPhase.Edit);
     }
 
+    private static Button CreateStyledButton(string text)
+    {
+        var btn = new Button
+        {
+            Text = text,
+            CustomMinimumSize = new Vector2(70, 30)
+        };
+        btn.AddThemeFontSizeOverride("font_size", 11);
+
+        var normal = MakeStyle(BtnBg);
+        var hover = MakeStyle(BtnHover);
+        var pressed = MakeStyle(BtnPressed);
+        var disabled = MakeStyle(BtnDisabled);
+        disabled.BorderColor = new Color("#2A2A2E");
+
+        btn.AddThemeStyleboxOverride("normal", normal);
+        btn.AddThemeStyleboxOverride("hover", hover);
+        btn.AddThemeStyleboxOverride("pressed", pressed);
+        btn.AddThemeStyleboxOverride("disabled", disabled);
+        btn.AddThemeColorOverride("font_disabled_color", new Color("#555555"));
+
+        return btn;
+    }
+
+    private static StyleBoxFlat MakeStyle(Color bg)
+    {
+        return new StyleBoxFlat
+        {
+            BgColor = bg,
+            BorderColor = BtnBorder,
+            BorderWidthBottom = 1, BorderWidthTop = 1,
+            BorderWidthLeft = 1, BorderWidthRight = 1,
+            CornerRadiusTopLeft = 4, CornerRadiusTopRight = 4,
+            CornerRadiusBottomLeft = 4, CornerRadiusBottomRight = 4,
+            ContentMarginLeft = 10, ContentMarginRight = 10,
+            ContentMarginTop = 4, ContentMarginBottom = 4
+        };
+    }
+
     private void OnSpeedSelected(long index)
     {
         float speed = index switch

Scripts/UI/MetricsOverlay.cs

@@ -10,46 +10,62 @@ public partial class MetricsOverlay : PanelContainer
     [Signal]
     public delegate void RetryPressedEventHandler();
 
-    private Label _metricsLabel = null!;
+    private Label _titleLabel = null!;
+    private Label _piecesLabel = null!;
+    private Label _turnsLabel = null!;
+    private Label _cellsLabel = null!;
+    private HBoxContainer _buttons = null!;
 
     public override void _Ready()
     {
-        var vbox = new VBoxContainer();
-        vbox.SetAnchorsPreset(LayoutPreset.Center);
+        var style = new StyleBoxFlat
+        {
+            BgColor = new Color(0.1f, 0.1f, 0.12f, 0.95f),
+            BorderColor = new Color("#B8942A"),
+            BorderWidthBottom = 2, BorderWidthTop = 2,
+            BorderWidthLeft = 2, BorderWidthRight = 2,
+            CornerRadiusTopLeft = 12, CornerRadiusTopRight = 12,
+            CornerRadiusBottomLeft = 12, CornerRadiusBottomRight = 12,
+            ContentMarginLeft = 32, ContentMarginRight = 32,
+            ContentMarginTop = 28, ContentMarginBottom = 28
+        };
+        AddThemeStyleboxOverride("panel", style);
 
-        var title = new Label
+        var vbox = new VBoxContainer();
+        vbox.AddThemeConstantOverride("separation", 8);
+
+        _titleLabel = new Label
         {
             Text = "VICTOIRE !",
             HorizontalAlignment = HorizontalAlignment.Center
         };
-        title.AddThemeFontSizeOverride("font_size", 24);
-        title.AddThemeColorOverride("font_color", new Color("#FFD700"));
-        vbox.AddChild(title);
+        _titleLabel.AddThemeFontSizeOverride("font_size", 26);
+        _titleLabel.AddThemeColorOverride("font_color", new Color("#FFD700"));
+        vbox.AddChild(_titleLabel);
 
         vbox.AddChild(new HSeparator());
 
-        _metricsLabel = new Label
-        {
-            Text = "",
-            HorizontalAlignment = HorizontalAlignment.Center
-        };
-        _metricsLabel.AddThemeFontSizeOverride("font_size", 14);
-        vbox.AddChild(_metricsLabel);
+        _piecesLabel = CreateMetricLabel();
+        vbox.AddChild(_piecesLabel);
+        _turnsLabel = CreateMetricLabel();
+        vbox.AddChild(_turnsLabel);
+        _cellsLabel = CreateMetricLabel();
+        vbox.AddChild(_cellsLabel);
 
         vbox.AddChild(new HSeparator());
 
-        var buttons = new HBoxContainer();
-        buttons.Alignment = BoxContainer.AlignmentMode.Center;
+        _buttons = new HBoxContainer { Alignment = BoxContainer.AlignmentMode.Center };
+        _buttons.AddThemeConstantOverride("separation", 16);
 
-        var retryBtn = new Button { Text = "Rejouer" };
+        var retryBtn = CreateStyledButton("Rejouer");
         retryBtn.Pressed += () => EmitSignal(SignalName.RetryPressed);
-        buttons.AddChild(retryBtn);
+        _buttons.AddChild(retryBtn);
 
-        var nextBtn = new Button { Text = "Niveau suivant" };
+        var nextBtn = CreateStyledButton("Niveau suivant");
         nextBtn.Pressed += () => EmitSignal(SignalName.NextLevelPressed);
-        buttons.AddChild(nextBtn);
+        _buttons.AddChild(nextBtn);
 
-        vbox.AddChild(buttons);
+        vbox.AddChild(_buttons);
         AddChild(vbox);
 
         Visible = false;
@@ -57,11 +73,87 @@ public partial class MetricsOverlay : PanelContainer
 
     public void ShowMetrics(Metrics metrics)
     {
-        _metricsLabel.Text = $"Pieces utilisees: {metrics.PiecesUsed}\n" +
-                             $"Coups: {metrics.TurnsTaken}\n" +
-                             $"Cases occupees: {metrics.CellsOccupied}";
+        _piecesLabel.Text = $"Pieces utilisees: {metrics.PiecesUsed}";
+        _turnsLabel.Text = $"Coups: {metrics.TurnsTaken}";
+        _cellsLabel.Text = $"Cases occupees: {metrics.CellsOccupied}";
+
+        // Start invisible, fade + scale in
+        Modulate = new Color(1, 1, 1, 0);
+        Scale = new Vector2(0.85f, 0.85f);
+        PivotOffset = Size / 2f;
         Visible = true;
+
+        // Hide metrics initially, reveal sequentially
+        _piecesLabel.Modulate = new Color(1, 1, 1, 0);
+        _turnsLabel.Modulate = new Color(1, 1, 1, 0);
+        _cellsLabel.Modulate = new Color(1, 1, 1, 0);
+        _buttons.Modulate = new Color(1, 1, 1, 0);
+
+        var tween = CreateTween();
+        // Panel fade in
+        tween.SetParallel(true);
+        tween.TweenProperty(this, "modulate:a", 1f, 0.3f)
+            .SetEase(Tween.EaseType.Out);
+        tween.TweenProperty(this, "scale", Vector2.One, 0.35f)
+            .SetEase(Tween.EaseType.Out).SetTrans(Tween.TransitionType.Back);
+        tween.SetParallel(false);
+
+        // Sequential metric reveals
+        tween.TweenInterval(0.15f);
+        tween.TweenProperty(_piecesLabel, "modulate:a", 1f, 0.2f);
+        tween.TweenInterval(0.1f);
+        tween.TweenProperty(_turnsLabel, "modulate:a", 1f, 0.2f);
+        tween.TweenInterval(0.1f);
+        tween.TweenProperty(_cellsLabel, "modulate:a", 1f, 0.2f);
+        tween.TweenInterval(0.15f);
+        tween.TweenProperty(_buttons, "modulate:a", 1f, 0.2f);
     }
 
-    public new void Hide() => Visible = false;
+    public new void Hide()
+    {
+        Visible = false;
+    }
+
+    private static Label CreateMetricLabel()
+    {
+        var label = new Label
+        {
+            Text = "",
+            HorizontalAlignment = HorizontalAlignment.Center
+        };
+        label.AddThemeFontSizeOverride("font_size", 14);
+        label.AddThemeColorOverride("font_color", new Color("#CCCCCC"));
+        return label;
+    }
+
+    private static Button CreateStyledButton(string text)
+    {
+        var btn = new Button
+        {
+            Text = text,
+            CustomMinimumSize = new Vector2(130, 36)
+        };
+
+        var normal = new StyleBoxFlat
+        {
+            BgColor = new Color("#3D6B8E"),
+            CornerRadiusTopLeft = 6, CornerRadiusTopRight = 6,
+            CornerRadiusBottomLeft = 6, CornerRadiusBottomRight = 6,
+            ContentMarginLeft = 16, ContentMarginRight = 16,
+            ContentMarginTop = 6, ContentMarginBottom = 6
+        };
+        var hover = new StyleBoxFlat
+        {
+            BgColor = new Color("#4A8EBF"),
+            CornerRadiusTopLeft = 6, CornerRadiusTopRight = 6,
+            CornerRadiusBottomLeft = 6, CornerRadiusBottomRight = 6,
+            ContentMarginLeft = 16, ContentMarginRight = 16,
+            ContentMarginTop = 6, ContentMarginBottom = 6
+        };
+        btn.AddThemeStyleboxOverride("normal", normal);
+        btn.AddThemeStyleboxOverride("hover", hover);
+        btn.AddThemeFontSizeOverride("font_size", 13);
+
+        return btn;
+    }
 }

Scripts/UI/ObjectivePanel.cs

@@ -6,7 +6,7 @@ namespace Chessistics.Scripts.UI;
 
 public partial class ObjectivePanel : VBoxContainer
 {
-    private readonly Dictionary<Coords, (Label label, ProgressBar bar)> _entries = new();
+    private readonly Dictionary<Coords, (Label label, ProgressBar bar, Label deadline)> _entries = new();
 
     public void Setup(IReadOnlyList<DemandDef> demands)
     {
@@ -16,7 +16,7 @@ public partial class ObjectivePanel : VBoxContainer
 
         var title = new Label { Text = "OBJECTIFS" };
         title.AddThemeFontSizeOverride("font_size", 16);
-        title.AddThemeColorOverride("font_color", new Color("#FFD700"));
+        title.AddThemeColorOverride("font_color", new Color("#B8942A")); // aged gold
         AddChild(title);
 
         AddChild(new HSeparator());
@@ -24,9 +24,11 @@ public partial class ObjectivePanel : VBoxContainer
         foreach (var demand in demands)
         {
             var vbox = new VBoxContainer();
+            vbox.AddThemeConstantOverride("separation", 2);
 
             var label = new Label { Text = $"{demand.Name}: 0/{demand.Amount} {demand.Cargo}" };
             label.AddThemeFontSizeOverride("font_size", 12);
+            label.AddThemeColorOverride("font_color", new Color("#CCCCCC"));
             vbox.AddChild(label);
 
             var bar = new ProgressBar
@@ -34,18 +36,34 @@ public partial class ObjectivePanel : VBoxContainer
                 MinValue = 0,
                 MaxValue = demand.Amount,
                 Value = 0,
-                CustomMinimumSize = new Vector2(180, 16),
+                CustomMinimumSize = new Vector2(180, 14),
                 ShowPercentage = false
             };
+
+            // Style the progress bar
+            var bgStyle = new StyleBoxFlat
+            {
+                BgColor = new Color(0.2f, 0.2f, 0.22f),
+                CornerRadiusTopLeft = 3, CornerRadiusTopRight = 3,
+                CornerRadiusBottomLeft = 3, CornerRadiusBottomRight = 3
+            };
+            var fillStyle = new StyleBoxFlat
+            {
+                BgColor = new Color("#3D6B8E"), // teal fill
+                CornerRadiusTopLeft = 3, CornerRadiusTopRight = 3,
+                CornerRadiusBottomLeft = 3, CornerRadiusBottomRight = 3
+            };
+            bar.AddThemeStyleboxOverride("background", bgStyle);
+            bar.AddThemeStyleboxOverride("fill", fillStyle);
             vbox.AddChild(bar);
 
             var deadline = new Label { Text = $"Deadline: {demand.Deadline} coups" };
             deadline.AddThemeFontSizeOverride("font_size", 10);
-            deadline.AddThemeColorOverride("font_color", new Color("#AAAAAA"));
+            deadline.AddThemeColorOverride("font_color", new Color("#777777"));
             vbox.AddChild(deadline);
 
             AddChild(vbox);
-            _entries[demand.Position] = (label, bar);
+            _entries[demand.Position] = (label, bar, deadline);
         }
     }
 
@@ -54,9 +72,24 @@ public partial class ObjectivePanel : VBoxContainer
         if (!_entries.TryGetValue(demandCell, out var entry)) return;
 
         entry.label.Text = $"{name}: {current}/{required}";
-        entry.bar.Value = current;
+
+        // Animate the progress bar value
+        var tween = entry.bar.CreateTween();
+        tween.TweenProperty(entry.bar, "value", (double)current, 0.2f)
+            .SetEase(Tween.EaseType.Out).SetTrans(Tween.TransitionType.Cubic);
 
         if (current >= required)
-            entry.label.AddThemeColorOverride("font_color", new Color("#44CC44"));
+        {
+            entry.label.AddThemeColorOverride("font_color", new Color("#5AAC5A")); // warm green
+
+            // Flash the progress bar green
+            var fillStyle = new StyleBoxFlat
+            {
+                BgColor = new Color("#5AAC5A"),
+                CornerRadiusTopLeft = 3, CornerRadiusTopRight = 3,
+                CornerRadiusBottomLeft = 3, CornerRadiusBottomRight = 3
+            };
+            entry.bar.AddThemeStyleboxOverride("fill", fillStyle);
+        }
     }
 }