First MVP of sorting minigame (#60)

Co-authored-by: Michal Pikulski <michal.a.pikulski@gmail.com>
Co-authored-by: Michal Pikulski <michal@foolhardyhorizons.com>
Reviewed-on: #60

Assets/Scripts/CardSystem/Data/CardSystemManager.cs

@@ -631,6 +631,25 @@ namespace Data.CardSystem
             return _pendingRevealCards.Count;
         }
         
+        /// <summary>
+        /// Gets a random card definition of the specified rarity.
+        /// Used by minigames to spawn cards without affecting player's collection.
+        /// </summary>
+        public CardDefinition GetRandomCardDefinitionByRarity(CardRarity targetRarity)
+        {
+            // Filter available cards by rarity
+            var matchingCards = availableCards.Where(c => c.Rarity == targetRarity).ToList();
+            
+            if (matchingCards.Count == 0)
+            {
+                Debug.LogWarning($"[CardSystemManager] No card definitions found for rarity {targetRarity}");
+                return null;
+            }
+            
+            // Return random card from matching rarity
+            return matchingCards[UnityEngine.Random.Range(0, matchingCards.Count)];
+        }
+        
         #endregion
         
         /// <summary>

Assets/Scripts/CardSystem/StateMachine/CardAnimator.cs

@@ -401,6 +401,56 @@ namespace UI.CardSystem.StateMachine
         }
         
         #endregion
+        
+        #region Color/Tint Animations
+        
+        private TweenBase _activeBlinkTween;
+        private Color _originalColor;
+        
+        /// <summary>
+        /// Blink an image red repeatedly (for fell-off-conveyor state)
+        /// </summary>
+        public void BlinkRed(UnityEngine.UI.Image image, float blinkSpeed = 0.25f)
+        {
+            if (image == null) return;
+            
+            // Stop any existing blink
+            StopBlinking();
+            
+            // Store original color
+            _originalColor = image.color;
+            
+            // Start blinking red loop
+            BlinkLoop(image, blinkSpeed);
+        }
+        
+        private void BlinkLoop(UnityEngine.UI.Image image, float blinkSpeed)
+        {
+            if (image == null) return;
+            
+            // Tween to red
+            _activeBlinkTween = Tween.Color(image, Color.red, blinkSpeed, 0f, Tween.EaseInOut,
+                completeCallback: () =>
+                {
+                    // Tween back to original
+                    _activeBlinkTween = Tween.Color(image, _originalColor, blinkSpeed, 0f, Tween.EaseInOut,
+                        completeCallback: () => BlinkLoop(image, blinkSpeed)); // Loop
+                });
+        }
+        
+        /// <summary>
+        /// Stop blinking animation and restore original color
+        /// </summary>
+        public void StopBlinking()
+        {
+            if (_activeBlinkTween != null)
+            {
+                _activeBlinkTween.Stop();
+                _activeBlinkTween = null;
+            }
+        }
+        
+        #endregion
     }
 }