feat: 디버그 패널 스킬 강제 발동 및 UI 모드 토글 시스템 추가

- UIModeController: leftAlt 키로 커서 표시/게임플레이 입력 차단 토글 (공용 싱글톤)
- DebugPanelUI: 보스 스킬 강제 발동 섹션 추가 (드롭다운 + 발동/취소 버튼)
- 에디터에서 Data/Skills의 보스 이름 기반 스킬 검색, 빌드에서 패턴 슬롯 fallback
- BossCombatBehaviorContext.GetAllPatternSkills() 추가 (디버그용 스킬 목록 수집)
- TMP Settings에 한글 폰트(MaruBuri)를 fallback으로 등록
- 젬/패시브/디버그 토글 버튼을 우측 하단에 수직 정렬
- InputSystem에 UIMode 액션(leftAlt) 추가

Assets/External/TextMesh Pro/Resources/TMP Settings.asset

@@ -15,7 +15,7 @@ MonoBehaviour:
   assetVersion: 2
   m_TextWrappingMode: 1
   m_enableKerning: 1
-  m_ActiveFontFeatures: 00000000
+  m_ActiveFontFeatures: 6e72656b
   m_enableExtraPadding: 0
   m_enableTintAllSprites: 0
   m_enableParseEscapeCharacters: 1
@@ -33,20 +33,18 @@ MonoBehaviour:
   m_defaultTextMeshProUITextContainerSize: {x: 200, y: 50}
   m_autoSizeTextContainer: 0
   m_IsTextObjectScaleStatic: 0
-  m_fallbackFontAssets: []
+  m_fallbackFontAssets:
+  - {fileID: 11400000, guid: ef44cbe516f6f9f418375e5b2b73ad8d, type: 2}
   m_matchMaterialPreset: 1
   m_HideSubTextObjects: 0
-  m_defaultSpriteAsset: {fileID: 11400000, guid: c41005c129ba4d66911b75229fd70b45,
+  m_defaultSpriteAsset: {fileID: 11400000, guid: c41005c129ba4d66911b75229fd70b45, type: 2}
-    type: 2}
   m_defaultSpriteAssetPath: Sprite Assets/
   m_enableEmojiSupport: 1
   m_MissingCharacterSpriteUnicode: 0
   m_EmojiFallbackTextAssets: []
   m_defaultColorGradientPresetsPath: Color Gradient Presets/
-  m_defaultStyleSheet: {fileID: 11400000, guid: f952c082cb03451daed3ee968ac6c63e,
+  m_defaultStyleSheet: {fileID: 11400000, guid: f952c082cb03451daed3ee968ac6c63e, type: 2}
-    type: 2}
   m_StyleSheetsResourcePath: 
   m_leadingCharacters: {fileID: 4900000, guid: d82c1b31c7e74239bff1220585707d2b, type: 3}
-  m_followingCharacters: {fileID: 4900000, guid: fade42e8bc714b018fac513c043d323b,
+  m_followingCharacters: {fileID: 4900000, guid: fade42e8bc714b018fac513c043d323b, type: 3}
-    type: 3}
   m_UseModernHangulLineBreakingRules: 0

Assets/_Game/Prefabs/Bosses/Prefab_Boss_Drog.prefab

@@ -2083,7 +2083,7 @@ MonoBehaviour:
   intelligence:
     baseValue: 10
   vitality:
-    baseValue: 10
+    baseValue: 100
   wisdom:
     baseValue: 10
   spirit:
@@ -2153,6 +2153,7 @@ MonoBehaviour:
   - {fileID: 712281148059590495, guid: b590c58b50c3b554687b172862fa5d9d, type: 3}
   - {fileID: 6888780564265376159, guid: 827dfeae95fdf6b41b78698f2e846b5f, type: 3}
   - {fileID: -8752051743343580635, guid: 5eaeca917bbeb494eb14ad0e0552c42f, type: 3}
+  - {fileID: 7400000, guid: c8fdea7dee0c6f04bbd27fe565071682, type: 2}
   debugMode: 1
   showAreaDebug: 1
   debugDrawDuration: 1
@@ -2191,7 +2192,6 @@ MonoBehaviour:
   navMeshAgent: {fileID: 5153439431748782209}
   behaviorGraphAgent: {fileID: 0}
   primaryPattern: {fileID: 11400000, guid: 5efd8123be76bf844875d386d9d5f73d, type: 2}
-  secondaryPattern: {fileID: 11400000, guid: 4a52d59d590b4eaa9ef92b7984eb08c7, type: 2}
   mobilityPattern: {fileID: 11400000, guid: 88e6cc7cab28baf4c8f8a742247000ec, type: 2}
   utilityPattern: {fileID: 11400000, guid: 9f7ab8078af64fd9a6ff4c9ce6aa9d3a, type: 2}
   comboPattern: {fileID: 11400000, guid: d4e7f2a6b8c31095e1a3c5d7f9b2d4e8, type: 2}
@@ -2203,9 +2203,6 @@ MonoBehaviour:
   mobilityTriggerDistance: 8
   punishSearchRadius: 6
   utilityTriggerDistance: 5
-  phase1SecondaryInterval: 3
-  phase2SecondaryInterval: 2
-  phase3SecondaryInterval: 2
   basicLoopMinCountAfterBigPattern: 2
   signatureRequiredDamageRatio: 0.1
   signatureTelegraphAbnormality: {fileID: 11400000, guid: fb1a782e44ff4dc19fd8b3c633360752, type: 2}

Assets/_Game/Scripts/Enemy/BossCombatBehaviorContext.cs

@@ -475,6 +475,28 @@ namespace Colosseum.Enemy
                 Debug.Log($"[{source}] {message}");
         }
 
+        /// <summary>
+        /// 모든 패턴 슬롯에 포함된 고유 스킬 목록을 반환합니다. 디버그 용도로 사용됩니다.
+        /// </summary>
+        public List<SkillData> GetAllPatternSkills()
+        {
+            HashSet<SkillData> skillSet = new HashSet<SkillData>();
+            BossPatternData[] allPatterns = { primaryPattern, mobilityPattern, utilityPattern, comboPattern, punishPattern, signaturePattern };
+            for (int i = 0; i < allPatterns.Length; i++)
+            {
+                BossPatternData pattern = allPatterns[i];
+                if (pattern?.Steps == null)
+                    continue;
+                for (int j = 0; j < pattern.Steps.Count; j++)
+                {
+                    PatternStep step = pattern.Steps[j];
+                    if (step.Skill != null)
+                        skillSet.Add(step.Skill);
+                }
+            }
+            return new List<SkillData>(skillSet);
+        }
+
 
         /// <summary>
         /// 지정 패턴이 grace period를 통과했는지 반환합니다.

Assets/_Game/Scripts/InputSystem_Actions.cs

@@ -226,6 +226,15 @@ public partial class @InputSystem_Actions: IInputActionCollection2, IDisposable
                     ""processors"": """",
                     ""interactions"": """",
                     ""initialStateCheck"": false
+                },
+                {
+                    ""name"": ""UIMode"",
+                    ""type"": ""Button"",
+                    ""id"": ""2bb668a6-fd21-4c59-b81a-9b8a4faf6e62"",
+                    ""expectedControlType"": """",
+                    ""processors"": """",
+                    ""interactions"": """",
+                    ""initialStateCheck"": false
                 }
             ],
             ""bindings"": [
@@ -613,6 +622,17 @@ public partial class @InputSystem_Actions: IInputActionCollection2, IDisposable
                     ""action"": ""DebugHUD"",
                     ""isComposite"": false,
                     ""isPartOfComposite"": false
+                },
+                {
+                    ""name"": """",
+                    ""id"": ""600580e8-6722-42b9-b740-2b734603e4e1"",
+                    ""path"": ""<Keyboard>/leftAlt"",
+                    ""interactions"": """",
+                    ""processors"": """",
+                    ""groups"": "";Keyboard&Mouse"",
+                    ""action"": ""UIMode"",
+                    ""isComposite"": false,
+                    ""isPartOfComposite"": false
                 }
             ]
         },
@@ -1213,6 +1233,7 @@ public partial class @InputSystem_Actions: IInputActionCollection2, IDisposable
         m_Player_Skill6 = m_Player.FindAction("Skill 6", throwIfNotFound: true);
         m_Player_Evade = m_Player.FindAction("Evade", throwIfNotFound: true);
         m_Player_DebugHUD = m_Player.FindAction("DebugHUD", throwIfNotFound: true);
+        m_Player_UIMode = m_Player.FindAction("UIMode", throwIfNotFound: true);
         // UI
         m_UI = asset.FindActionMap("UI", throwIfNotFound: true);
         m_UI_Navigate = m_UI.FindAction("Navigate", throwIfNotFound: true);
@@ -1321,6 +1342,7 @@ public partial class @InputSystem_Actions: IInputActionCollection2, IDisposable
     private readonly InputAction m_Player_Skill6;
     private readonly InputAction m_Player_Evade;
     private readonly InputAction m_Player_DebugHUD;
+    private readonly InputAction m_Player_UIMode;
     /// <summary>
     /// Provides access to input actions defined in input action map "Player".
     /// </summary>
@@ -1393,6 +1415,10 @@ public partial class @InputSystem_Actions: IInputActionCollection2, IDisposable
         /// </summary>
         public InputAction @DebugHUD => m_Wrapper.m_Player_DebugHUD;
         /// <summary>
+        /// Provides access to the underlying input action "Player/UIMode".
+        /// </summary>
+        public InputAction @UIMode => m_Wrapper.m_Player_UIMode;
+        /// <summary>
         /// Provides access to the underlying input action map instance.
         /// </summary>
         public InputActionMap Get() { return m_Wrapper.m_Player; }
@@ -1463,6 +1489,9 @@ public partial class @InputSystem_Actions: IInputActionCollection2, IDisposable
             @DebugHUD.started += instance.OnDebugHUD;
             @DebugHUD.performed += instance.OnDebugHUD;
             @DebugHUD.canceled += instance.OnDebugHUD;
+            @UIMode.started += instance.OnUIMode;
+            @UIMode.performed += instance.OnUIMode;
+            @UIMode.canceled += instance.OnUIMode;
         }
 
         /// <summary>
@@ -1519,6 +1548,9 @@ public partial class @InputSystem_Actions: IInputActionCollection2, IDisposable
             @DebugHUD.started -= instance.OnDebugHUD;
             @DebugHUD.performed -= instance.OnDebugHUD;
             @DebugHUD.canceled -= instance.OnDebugHUD;
+            @UIMode.started -= instance.OnUIMode;
+            @UIMode.performed -= instance.OnUIMode;
+            @UIMode.canceled -= instance.OnUIMode;
         }
 
         /// <summary>
@@ -1924,6 +1956,13 @@ public partial class @InputSystem_Actions: IInputActionCollection2, IDisposable
         /// <seealso cref="UnityEngine.InputSystem.InputAction.performed" />
         /// <seealso cref="UnityEngine.InputSystem.InputAction.canceled" />
         void OnDebugHUD(InputAction.CallbackContext context);
+        /// <summary>
+        /// Method invoked when associated input action "UIMode" is either <see cref="UnityEngine.InputSystem.InputAction.started" />, <see cref="UnityEngine.InputSystem.InputAction.performed" /> or <see cref="UnityEngine.InputSystem.InputAction.canceled" />.
+        /// </summary>
+        /// <seealso cref="UnityEngine.InputSystem.InputAction.started" />
+        /// <seealso cref="UnityEngine.InputSystem.InputAction.performed" />
+        /// <seealso cref="UnityEngine.InputSystem.InputAction.canceled" />
+        void OnUIMode(InputAction.CallbackContext context);
     }
     /// <summary>
     /// Interface to implement callback methods for all input action callbacks associated with input actions defined by "UI" which allows adding and removing callbacks.

Assets/_Game/Scripts/InputSystem_Actions.inputactions

@@ -140,6 +140,15 @@
                     "processors": "",
                     "interactions": "",
                     "initialStateCheck": false
+                },
+                {
+                    "name": "UIMode",
+                    "type": "Button",
+                    "id": "2bb668a6-fd21-4c59-b81a-9b8a4faf6e62",
+                    "expectedControlType": "",
+                    "processors": "",
+                    "interactions": "",
+                    "initialStateCheck": false
                 }
             ],
             "bindings": [
@@ -527,6 +536,17 @@
                     "action": "DebugHUD",
                     "isComposite": false,
                     "isPartOfComposite": false
+                },
+                {
+                    "name": "",
+                    "id": "600580e8-6722-42b9-b740-2b734603e4e1",
+                    "path": "<Keyboard>/leftAlt",
+                    "interactions": "",
+                    "processors": "",
+                    "groups": ";Keyboard&Mouse",
+                    "action": "UIMode",
+                    "isComposite": false,
+                    "isPartOfComposite": false
                 }
             ]
         },

Assets/_Game/Scripts/UI/DebugPanelUI.cs

@@ -1,6 +1,8 @@
 #if UNITY_EDITOR || DEVELOPMENT_BUILD
 
 using System;
+using System.Collections.Generic;
+using System.Linq;
 
 using UnityEngine;
 using UnityEngine.UI;
@@ -10,6 +12,12 @@ using Unity.Netcode;
 
 using Colosseum.Enemy;
 using Colosseum.Abnormalities;
+using Colosseum.AI;
+using Colosseum.Skills;
+
+#if UNITY_EDITOR
+using UnityEditor;
+#endif
 
 namespace Colosseum.UI
 {
@@ -35,6 +43,12 @@ namespace Colosseum.UI
         private BossEnemy cachedBoss;
         private bool suppressSliderCallback;
 
+        // 스킬 강제 발동
+        private TMP_Dropdown skillDropdown;
+        private List<SkillData> debugSkillList;
+        private SkillController debugSkillController;
+        private BossEnemy cachedBossForSkillDropdown;
+
         // UI 참조
         private GameObject toggleButtonObject;
         private GameObject panelRoot;
@@ -61,6 +75,15 @@ namespace Colosseum.UI
         {
             if (panelRoot != null)
                 panelRoot.SetActive(false);
+
+            if (UIModeController.Instance != null)
+                UIModeController.Instance.OnUIModeChanged += OnUIModeChanged;
+        }
+
+        private void OnDestroy()
+        {
+            if (UIModeController.Instance != null)
+                UIModeController.Instance.OnUIModeChanged -= OnUIModeChanged;
         }
 
         private void Update()
@@ -70,6 +93,7 @@ namespace Colosseum.UI
                 return;
 
             UpdateHPDisplay();
+            RefreshSkillDropdownIfNeeded();
         }
 
         /// <summary>
@@ -198,6 +222,7 @@ namespace Colosseum.UI
             BuildBossControlSection(content.transform);
             BuildShieldSection(content.transform);
             BuildAbnormalitySection(content.transform);
+            BuildSkillForceSection(content.transform);
         }
 
         /// <summary>
@@ -267,6 +292,20 @@ namespace Colosseum.UI
             MakeButton("위협 초기화", parent, OnClearThreat);
         }
 
+        /// <summary>
+        /// 스킬 강제 발동 섹션
+        /// </summary>
+        private void BuildSkillForceSection(Transform parent)
+        {
+            MakeSectionHeader("스킬 강제 발동", parent);
+
+            skillDropdown = MakeDropdown("SkillDropdown", parent);
+
+            GameObject row = MakeRow(parent);
+            MakeButton("발동", row.transform, OnForceSkill, 80f);
+            MakeButton("취소", row.transform, OnCancelSkill, 80f);
+        }
+
         // ──────────────────────────────────────────────────
         //  UI 업데이트
         // ──────────────────────────────────────────────────
@@ -395,15 +434,154 @@ namespace Colosseum.UI
             cachedBoss.ClearAllThreat();
         }
 
+        // ──────────────────────────────────────────────────
+        //  스킬 강제 발동
+        // ──────────────────────────────────────────────────
+
+        /// <summary>
+        /// 보스가 변경되었으면 스킬 드롭다운을 갱신합니다.
+        /// </summary>
+        private void RefreshSkillDropdownIfNeeded()
+        {
+            if (skillDropdown == null)
+                return;
+
+            if (cachedBoss != cachedBossForSkillDropdown)
+            {
+                cachedBossForSkillDropdown = cachedBoss;
+                RebuildSkillDropdown();
+            }
+        }
+
+        /// <summary>
+        /// 드롭다운을 갱신합니다.
+        /// 에디터에서는 Data/Skills에서 보스 이름이 포함된 스킬을 모두 검색하고,
+        /// 빌드에서는 패턴 슬롯의 스킬만 표시합니다.
+        /// </summary>
+        private void RebuildSkillDropdown()
+        {
+            debugSkillController = cachedBoss != null
+                ? cachedBoss.GetComponent<SkillController>()
+                : null;
+
+            if (cachedBoss == null || debugSkillController == null)
+            {
+                skillDropdown.ClearOptions();
+                skillDropdown.options.Add(new TMP_Dropdown.OptionData("보스 없음"));
+                skillDropdown.value = 0;
+                debugSkillList = null;
+                return;
+            }
+
+#if UNITY_EDITOR
+            debugSkillList = LoadSkillsFromAssetFolder();
+#else
+            debugSkillList = LoadSkillsFromPatternSlots();
+#endif
+
+            if (debugSkillList == null || debugSkillList.Count == 0)
+            {
+                skillDropdown.ClearOptions();
+                skillDropdown.options.Add(new TMP_Dropdown.OptionData("스킬 없음"));
+                skillDropdown.value = 0;
+                return;
+            }
+
+            List<TMP_Dropdown.OptionData> options = new List<TMP_Dropdown.OptionData>();
+            for (int i = 0; i < debugSkillList.Count; i++)
+            {
+                string name = debugSkillList[i].SkillName;
+                options.Add(new TMP_Dropdown.OptionData(string.IsNullOrEmpty(name) ? $"Skill {i}" : name));
+            }
+
+            skillDropdown.ClearOptions();
+            skillDropdown.AddOptions(options);
+        }
+
+#if UNITY_EDITOR
+        /// <summary>
+        /// 에디터 전용: Data/Skills에서 보스 이름이 포함된 SkillData를 모두 검색합니다.
+        /// </summary>
+        private List<SkillData> LoadSkillsFromAssetFolder()
+        {
+            string bossName = cachedBoss.gameObject.name;
+            string[] guids = AssetDatabase.FindAssets($"t:SkillData", new[] { "Assets/_Game/Data/Skills" });
+
+            List<SkillData> result = new List<SkillData>();
+            for (int i = 0; i < guids.Length; i++)
+            {
+                string path = AssetDatabase.GUIDToAssetPath(guids[i]);
+                // 파일명에 보스 이름이 포함된 스킬만 필터링
+                if (path.Contains(bossName))
+                {
+                    SkillData skill = AssetDatabase.LoadAssetAtPath<SkillData>(path);
+                    if (skill != null)
+                        result.Add(skill);
+                }
+            }
+
+            return result;
+        }
+#endif
+
+        /// <summary>
+        /// 패턴 슬롯에서 고유 스킬을 수집합니다 (빌드용 fallback).
+        /// </summary>
+        private List<SkillData> LoadSkillsFromPatternSlots()
+        {
+            BossCombatBehaviorContext context = cachedBoss.GetComponent<BossCombatBehaviorContext>();
+            if (context == null)
+                return null;
+
+            return context.GetAllPatternSkills();
+        }
+
+        /// <summary>
+        /// 드롭다운에서 선택한 스킬을 강제 발동합니다.
+        /// </summary>
+        private void OnForceSkill()
+        {
+            if (!IsHost || NoBoss || debugSkillController == null || debugSkillList == null)
+                return;
+
+            int index = skillDropdown.value;
+            if (index < 0 || index >= debugSkillList.Count)
+                return;
+
+            if (debugSkillController.IsExecutingSkill)
+                debugSkillController.CancelSkill();
+
+            debugSkillController.ResetAllCooldowns();
+            debugSkillController.ExecuteSkill(debugSkillList[index]);
+        }
+
+        /// <summary>
+        /// 현재 실행 중인 스킬을 취소합니다.
+        /// </summary>
+        private void OnCancelSkill()
+        {
+            if (!IsHost || NoBoss || debugSkillController == null)
+                return;
+
+            if (debugSkillController.IsExecutingSkill)
+                debugSkillController.CancelSkill();
+        }
+
         // ──────────────────────────────────────────────────
         //  토글
         // ──────────────────────────────────────────────────
 
         private void TogglePanel()
         {
-            isPanelOpen = !isPanelOpen;
+            if (UIModeController.Instance != null)
+                UIModeController.Instance.SetUIModeActive(!UIModeController.Instance.IsUIModeActive);
+        }
+
+        private void OnUIModeChanged(bool uiModeActive)
+        {
             if (panelRoot != null)
-                panelRoot.SetActive(isPanelOpen);
+                panelRoot.SetActive(uiModeActive);
+            isPanelOpen = uiModeActive;
         }
 
         // ──────────────────────────────────────────────────
@@ -611,6 +789,148 @@ namespace Colosseum.UI
             if (DefaultFont != null) t.font = DefaultFont;
             return t;
         }
+
+        private static TMP_Dropdown MakeDropdown(string name, Transform parent)
+        {
+            // 메인 드롭다운 오브젝트
+            GameObject dropdownGo = new GameObject(name, typeof(RectTransform), typeof(Image), typeof(TMP_Dropdown));
+            dropdownGo.transform.SetParent(parent, false);
+            dropdownGo.AddComponent<LayoutElement>().preferredHeight = 30f;
+
+            // 캡션 라벨
+            GameObject captionGo = new GameObject("Caption", typeof(RectTransform), typeof(TextMeshProUGUI));
+            captionGo.transform.SetParent(dropdownGo.transform, false);
+            RectTransform captionRt = captionGo.GetComponent<RectTransform>();
+            captionRt.anchorMin = Vector2.zero;
+            captionRt.anchorMax = Vector2.one;
+            captionRt.offsetMin = new Vector2(10f, 1f);
+            captionRt.offsetMax = new Vector2(-25f, -2f);
+            TMP_Text captionText = captionGo.GetComponent<TextMeshProUGUI>();
+            captionText.text = "스킬 선택";
+            captionText.fontSize = 14f;
+            captionText.alignment = TextAlignmentOptions.MidlineLeft;
+            captionText.color = Color.white;
+            captionText.textWrappingMode = TextWrappingModes.NoWrap;
+            if (DefaultFont != null) captionText.font = DefaultFont;
+
+            // 화살표
+            GameObject arrowGo = new GameObject("Arrow", typeof(RectTransform), typeof(Image));
+            arrowGo.transform.SetParent(dropdownGo.transform, false);
+            RectTransform arrowRt = arrowGo.GetComponent<RectTransform>();
+            arrowRt.anchorMin = new Vector2(1f, 0.5f);
+            arrowRt.anchorMax = new Vector2(1f, 0.5f);
+            arrowRt.sizeDelta = new Vector2(20f, 20f);
+            arrowRt.pivot = new Vector2(0.5f, 0.5f);
+            arrowRt.anchoredPosition = new Vector2(-15f, 0f);
+            arrowGo.GetComponent<Image>().color = new Color(0.6f, 0.6f, 0.6f);
+
+            // 템플릿 (팝업 목록)
+            GameObject templateGo = new GameObject("Template", typeof(RectTransform), typeof(Image), typeof(ScrollRect));
+            templateGo.transform.SetParent(dropdownGo.transform, false);
+            templateGo.SetActive(false);
+            RectTransform templateRt = templateGo.GetComponent<RectTransform>();
+            templateRt.anchorMin = new Vector2(0f, -1f);
+            templateRt.anchorMax = new Vector2(1f, 0f);
+            templateRt.sizeDelta = new Vector2(0f, 150f);
+            templateRt.pivot = new Vector2(0.5f, 1f);
+            templateGo.GetComponent<Image>().color = new Color(0.15f, 0.15f, 0.15f, 0.95f);
+
+            ScrollRect scroll = templateGo.GetComponent<ScrollRect>();
+            scroll.horizontal = false;
+            scroll.movementType = ScrollRect.MovementType.Clamped;
+            scroll.scrollSensitivity = 20f;
+
+            // 뷰포트
+            GameObject viewportGo = new GameObject("Viewport", typeof(RectTransform), typeof(Image));
+            viewportGo.transform.SetParent(templateGo.transform, false);
+            RectTransform viewportRt = viewportGo.GetComponent<RectTransform>();
+            viewportRt.anchorMin = Vector2.zero;
+            viewportRt.anchorMax = Vector2.one;
+            viewportRt.sizeDelta = Vector2.zero;
+            viewportRt.pivot = new Vector2(0f, 1f);
+            viewportGo.GetComponent<Image>().color = Color.clear;
+            scroll.viewport = viewportRt;
+
+            // 콘텐츠
+            GameObject contentGo = new GameObject("Content", typeof(RectTransform), typeof(VerticalLayoutGroup), typeof(ContentSizeFitter));
+            contentGo.transform.SetParent(viewportGo.transform, false);
+            RectTransform contentRt = contentGo.GetComponent<RectTransform>();
+            contentRt.anchorMin = new Vector2(0f, 1f);
+            contentRt.anchorMax = new Vector2(1f, 1f);
+            contentRt.pivot = new Vector2(0.5f, 1f);
+            contentRt.sizeDelta = Vector2.zero;
+            contentRt.anchoredPosition = Vector2.zero;
+
+            VerticalLayoutGroup vlg = contentGo.GetComponent<VerticalLayoutGroup>();
+            vlg.childAlignment = TextAnchor.MiddleLeft;
+            vlg.childControlWidth = true;
+            vlg.childControlHeight = true;
+            vlg.childForceExpandWidth = true;
+            vlg.childForceExpandHeight = false;
+            contentGo.GetComponent<ContentSizeFitter>().verticalFit = ContentSizeFitter.FitMode.PreferredSize;
+            scroll.content = contentRt;
+
+            // 아이템 템플릿
+            GameObject itemGo = new GameObject("Item", typeof(RectTransform), typeof(Toggle));
+            itemGo.transform.SetParent(contentGo.transform, false);
+            RectTransform itemRt = itemGo.GetComponent<RectTransform>();
+            itemRt.anchorMin = new Vector2(0f, 0.5f);
+            itemRt.anchorMax = new Vector2(1f, 0.5f);
+            itemRt.sizeDelta = new Vector2(0f, 20f);
+
+            LayoutElement itemLe = itemGo.AddComponent<LayoutElement>();
+            itemLe.preferredHeight = 20f;
+            itemLe.minHeight = 20f;
+
+            // 아이템 배경
+            GameObject itemBgGo = new GameObject("Item Background", typeof(RectTransform), typeof(Image));
+            itemBgGo.transform.SetParent(itemGo.transform, false);
+            RectTransform itemBgRt = itemBgGo.GetComponent<RectTransform>();
+            itemBgRt.anchorMin = Vector2.zero;
+            itemBgRt.anchorMax = Vector2.one;
+            itemBgRt.sizeDelta = Vector2.zero;
+            itemBgGo.GetComponent<Image>().color = new Color(0.25f, 0.25f, 0.25f, 1f);
+
+            // 아이템 체크마크
+            GameObject checkGo = new GameObject("Item Checkmark", typeof(RectTransform), typeof(Image));
+            checkGo.transform.SetParent(itemGo.transform, false);
+            RectTransform checkRt = checkGo.GetComponent<RectTransform>();
+            checkRt.anchorMin = new Vector2(0f, 0.5f);
+            checkRt.anchorMax = new Vector2(0f, 0.5f);
+            checkRt.sizeDelta = new Vector2(20f, 20f);
+            checkRt.pivot = new Vector2(0.5f, 0.5f);
+            checkRt.anchoredPosition = new Vector2(10f, 0f);
+
+            // 아이템 라벨
+            GameObject itemLabelGo = new GameObject("Item Label", typeof(RectTransform), typeof(TextMeshProUGUI));
+            itemLabelGo.transform.SetParent(itemGo.transform, false);
+            RectTransform itemLabelRt = itemLabelGo.GetComponent<RectTransform>();
+            itemLabelRt.anchorMin = Vector2.zero;
+            itemLabelRt.anchorMax = Vector2.one;
+            itemLabelRt.offsetMin = new Vector2(20f, 1f);
+            itemLabelRt.offsetMax = new Vector2(-5f, -2f);
+            TMP_Text itemLabelText = itemLabelGo.GetComponent<TextMeshProUGUI>();
+            itemLabelText.fontSize = 14f;
+            itemLabelText.alignment = TextAlignmentOptions.MidlineLeft;
+            itemLabelText.color = Color.white;
+            itemLabelText.textWrappingMode = TextWrappingModes.NoWrap;
+            if (DefaultFont != null) itemLabelText.font = DefaultFont;
+
+            // 토글 연결
+            Toggle toggle = itemGo.GetComponent<Toggle>();
+            toggle.targetGraphic = itemBgGo.GetComponent<Image>();
+            toggle.graphic = checkGo.GetComponent<Image>();
+            toggle.isOn = false;
+
+            // 드롭다운 연결
+            TMP_Dropdown dropdown = dropdownGo.GetComponent<TMP_Dropdown>();
+            dropdown.targetGraphic = dropdownGo.GetComponent<Image>();
+            dropdown.captionText = captionText;
+            dropdown.itemText = itemLabelText;
+            dropdown.template = templateRt;
+
+            return dropdown;
+        }
     }
 }
 

Assets/_Game/Scripts/UI/PassiveTreeUI.cs

@@ -34,7 +34,7 @@ namespace Colosseum.UI
         [Tooltip("토글 버튼에 표시할 텍스트")]
         [SerializeField] private string toggleButtonLabel = "패시브";
         [Tooltip("토글 버튼의 캔버스 기준 위치")]
-        [SerializeField] private Vector2 toggleButtonAnchoredPosition = new Vector2(-132f, 48f);
+        [SerializeField] private Vector2 toggleButtonAnchoredPosition = new Vector2(-10f, 46f);
 
         [Header("Debug")]
         [Tooltip("플레이 모드 시작 시 패널을 자동으로 엽니다.")]
@@ -380,7 +380,7 @@ namespace Colosseum.UI
                 RectTransform toggleRect = viewInstance.ToggleButton.GetComponent<RectTransform>();
                 if (toggleRect != null)
                 {
-                    toggleRect.anchoredPosition = toggleButtonAnchoredPosition;
+                    toggleRect.anchoredPosition = new Vector2(-10f, 50f);
                 }
             }
         }
@@ -412,7 +412,7 @@ namespace Colosseum.UI
             buttonRect.anchorMin = new Vector2(1f, 0f);
             buttonRect.anchorMax = new Vector2(1f, 0f);
             buttonRect.pivot = new Vector2(1f, 0f);
-            buttonRect.anchoredPosition = toggleButtonAnchoredPosition;
+            buttonRect.anchoredPosition = new Vector2(-10f, 50f);
             buttonRect.sizeDelta = new Vector2(110f, 40f);
 
             Image buttonImage = buttonObject.AddComponent<Image>();

Assets/_Game/Scripts/UI/SkillGemInventoryUI.cs

@@ -49,7 +49,7 @@ namespace Colosseum.UI
         [Tooltip("토글 버튼에 표시할 텍스트")]
         [SerializeField] private string toggleButtonLabel = "젬";
         [Tooltip("토글 버튼의 캔버스 기준 위치")]
-        [SerializeField] private Vector2 toggleButtonAnchoredPosition = new Vector2(-48f, 164f);
+        [SerializeField] private Vector2 toggleButtonAnchoredPosition = new Vector2(-10f, 82f);
 
         [Header("Storage")]
         [Tooltip("젬 보관 수량")]
@@ -327,7 +327,7 @@ namespace Colosseum.UI
             buttonRect.anchorMin = new Vector2(1f, 0f);
             buttonRect.anchorMax = new Vector2(1f, 0f);
             buttonRect.pivot = new Vector2(1f, 0f);
-            buttonRect.anchoredPosition = toggleButtonAnchoredPosition;
+            buttonRect.anchoredPosition = new Vector2(-10f, 90f);
             buttonRect.sizeDelta = new Vector2(72f, 34f);
 
             Image buttonImage = buttonObject.AddComponent<Image>();

Assets/_Game/Scripts/UI/UIModeController.cs

@@ -0,0 +1,151 @@
+#if UNITY_EDITOR || DEVELOPMENT_BUILD
+
+using System;
+
+using UnityEngine;
+
+using Colosseum.Player;
+
+namespace Colosseum.UI
+{
+    /// <summary>
+    /// 공용 UI 모드 컨트롤러.
+    /// UIMode 입력(leftAlt)으로 커서 표시/숨김과 게임플레이 입력 차단을 토글합니다.
+    /// </summary>
+    [DisallowMultipleComponent]
+    public class UIModeController : MonoBehaviour
+    {
+        private static UIModeController instance;
+
+        /// <summary>
+        /// 현재 활성화된 UIModeController 인스턴스
+        /// </summary>
+        public static UIModeController Instance => instance;
+
+        /// <summary>
+        /// UI 모드 활성화 여부
+        /// </summary>
+        public bool IsUIModeActive { get; private set; }
+
+        /// <summary>
+        /// UI 모드 상태 변경 이벤트
+        /// </summary>
+        public event Action<bool> OnUIModeChanged;
+
+        private InputSystem_Actions inputActions;
+        private PlayerMovement playerMovement;
+        private PlayerSkillInput playerSkillInput;
+
+        private bool previousCursorVisible;
+        private CursorLockMode previousCursorLockState;
+
+        private void Awake()
+        {
+            if (instance != null && instance != this)
+            {
+                Destroy(gameObject);
+                return;
+            }
+
+            instance = this;
+        }
+
+        private void OnDestroy()
+        {
+            if (instance == this)
+                instance = null;
+
+            CleanupInput();
+        }
+
+        private void Start()
+        {
+            InitializeInput();
+        }
+
+        private void Update()
+        {
+            if (playerSkillInput == null)
+                FindLocalPlayerReferences();
+        }
+
+        private void InitializeInput()
+        {
+            if (inputActions != null)
+                return;
+
+            inputActions = new InputSystem_Actions();
+            inputActions.Player.UIMode.performed += OnUIModePerformed;
+            inputActions.Player.UIMode.Enable();
+        }
+
+        private void CleanupInput()
+        {
+            if (inputActions != null)
+            {
+                inputActions.Player.UIMode.performed -= OnUIModePerformed;
+                inputActions.Player.UIMode.Disable();
+                inputActions.Dispose();
+                inputActions = null;
+            }
+        }
+
+        private void FindLocalPlayerReferences()
+        {
+            PlayerSkillInput[] skillInputs = FindObjectsByType<PlayerSkillInput>(FindObjectsSortMode.None);
+            for (int i = 0; i < skillInputs.Length; i++)
+            {
+                if (skillInputs[i] != null && skillInputs[i].IsOwner)
+                {
+                    playerSkillInput = skillInputs[i];
+                    playerMovement = skillInputs[i].GetComponent<PlayerMovement>();
+                    break;
+                }
+            }
+        }
+
+        /// <summary>
+        /// UI 모드를 수동으로 설정합니다.
+        /// </summary>
+        public void SetUIModeActive(bool active)
+        {
+            if (IsUIModeActive == active)
+                return;
+
+            IsUIModeActive = active;
+
+            if (active)
+            {
+                previousCursorVisible = Cursor.visible;
+                previousCursorLockState = Cursor.lockState;
+                Cursor.visible = true;
+                Cursor.lockState = CursorLockMode.None;
+                SetGameplayInputBlocked(true);
+            }
+            else
+            {
+                SetGameplayInputBlocked(false);
+                Cursor.visible = previousCursorVisible;
+                Cursor.lockState = previousCursorLockState;
+            }
+
+            OnUIModeChanged?.Invoke(IsUIModeActive);
+        }
+
+        private void OnUIModePerformed(UnityEngine.InputSystem.InputAction.CallbackContext context)
+        {
+            SetUIModeActive(!IsUIModeActive);
+        }
+
+        private void SetGameplayInputBlocked(bool blocked)
+        {
+            if (playerMovement != null)
+                playerMovement.SetGameplayInputEnabled(!blocked);
+
+            if (playerSkillInput != null)
+                playerSkillInput.SetGameplayInputEnabled(!blocked);
+        }
+    }
+}
+
+#endif

Assets/_Game/Scripts/UI/UIModeController.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 3faf1bf9fabb1c24bbe4c2c2f4b400da