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diff --git a/src/systems/MuseumEvolutionSystem.js b/src/systems/MuseumEvolutionSystem.js
new file mode 100644
index 000000000..1eaebcae2
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+++ b/src/systems/MuseumEvolutionSystem.js
@@ -0,0 +1,344 @@
+/**
+ * MUSEUM EVOLUTION SYSTEM
+ * 3-stage museum restoration with artifact collection
+ * Integrates with Kustos NPC and quest system
+ */
+
+export class MuseumEvolutionSystem {
+    constructor(scene) {
+        this.scene = scene;
+
+        // Museum evolution stages
+        this.currentStage = 0; // 0 = ruined, 1 = partial, 2 = advanced, 3 = complete
+
+        // Artifact collection
+        this.artifacts = new Map(); // artifactId → artifactData
+        this.collectedArtifacts = new Set();
+
+        // Album tracking
+        this.albumCategories = new Map();
+
+        this.init();
+    }
+
+    init() {
+        this.initializeArtifactDatabase();
+        this.initializeAlbumCategories();
+    }
+
+    /**
+     * Initialize all collectible artifacts
+     */
+    initializeArtifactDatabase() {
+        const artifacts = [
+            // Pre-war artifacts
+            { id: 'dino_skull', name: 'Dinosaur Skull', category: 'prehistory', rarity: 'legendary', discoveryReward: 500 },
+            { id: 'ancient_vase', name: 'Ancient Vase', category: 'prehistory', rarity: 'rare', discoveryReward: 100 },
+            { id: 'fossil', name: 'Fossil', category: 'prehistory', rarity: 'common', discoveryReward: 50 },
+
+            // 2084 tech artifacts            
+            { id: 'ai_core', name: 'AI Core Fragment', category: '2084_tech', rarity: 'legendary', discoveryReward: 800 },
+            { id: 'hologram_projector', name: 'Hologram Projector', category: '2084_tech', rarity: 'rare', discoveryReward: 150 },
+            { id: 'old_smartphone', name: 'Pre-War Smartphone', category: '2084_tech', rarity: 'uncommon', discoveryReward: 80 },
+
+            // Cultural artifacts
+            { id: 'religious_icon', name: 'Religious Icon', category: 'culture', rarity: 'rare', discoveryReward: 120 },
+            { id: 'painting', name: 'Old Painting', category: 'culture', rarity: 'uncommon', discoveryReward: 90 },
+            { id: 'book_collection', name: 'Rare Book Collection', category: 'culture', rarity: 'rare', discoveryReward: 110 },
+
+            // Post-apocalypse relics
+            { id: 'first_cannabis_seed', name: 'First Cannabis Seed', category: 'post_apo', rarity: 'legendary', discoveryReward: 600 },
+            { id: 'zombie_variant_sample', name: 'Zombie Variant Sample', category: 'post_apo', rarity: 'rare', discoveryReward: 140 },
+            { id: 'survival_journal', name: "Survivor's Journal", category: 'post_apo', rarity: 'uncommon', discoveryReward: 70 }
+        ];
+
+        artifacts.forEach(artifact => {
+            this.artifacts.set(artifact.id, {
+                ...artifact,
+                discovered: false,
+                donatedToMuseum: false,
+                discoveryDate: null
+            });
+        });
+    }
+
+    /**
+     * Initialize album categories for organization
+     */
+    initializeAlbumCategories() {
+        this.albumCategories.set('prehistory', {
+            name: 'Prehistoric Era',
+            description: 'Artifacts from Earth\'s ancient past',
+            totalArtifacts: 3,
+            collected: 0
+        });
+
+        this.albumCategories.set('2084_tech', {
+            name: '2084 Technology',
+            description: 'Advanced tech from before The Collapse',
+            totalArtifacts: 3,
+            collected: 0
+        });
+
+        this.albumCategories.set('culture', {
+            name: 'Cultural Heritage',
+            description: 'Art, religion, and culture of the old world',
+            totalArtifacts: 3,
+            collected: 0
+        });
+
+        this.albumCategories.set('post_apo', {
+            name: 'Post-Apocalypse',
+            description: 'Relics from the new world',
+            totalArtifacts: 3,
+            collected: 0
+        });
+    }
+
+    /**
+     * Discover artifact (player finds it)
+     */
+    discoverArtifact(artifactId, location) {
+        const artifact = this.artifacts.get(artifactId);
+        if (!artifact) return false;
+
+        if (artifact.discovered) {
+            console.warn(`Artifact ${artifactId} already discovered`);
+            return false;
+        }
+
+        artifact.discovered = true;
+        artifact.discoveryDate = Date.now();
+        artifact.discoveryLocation = location;
+
+        // Add to player inventory
+        this.scene.inventorySystem.addItem(artifactId, 1);
+
+        // Notification
+        this.scene.uiSystem?.showNotification(
+            `Artifact discovered: ${artifact.name}!`,
+            'discovery',
+            { rarity: artifact.rarity }
+        );
+
+        // Reward currency
+        this.scene.economySystem.addCurrency(artifact.discoveryReward);
+
+        // VFX
+        this.scene.vfxSystem?.playEffect('artifact_discovery', this.scene.player.x, this.scene.player.y);
+
+        console.log(`✨ Discovered artifact: ${artifact.name} (+${artifact.discoveryReward} coins)`);
+
+        // Kustos dialogue trigger
+        if (!artifact.donatedToMuseum) {
+            this.triggerKustosDialogue(artifactId);
+        }
+
+        return true;
+    }
+
+    /**
+     * Donate artifact to museum (Kustos interaction)
+     */
+    donateArtifact(artifactId) {
+        const artifact = this.artifacts.get(artifactId);
+        if (!artifact || !artifact.discovered || artifact.donatedToMuseum) return false;
+
+        // Remove from player inventory
+        if (!this.scene.inventorySystem.hasItem(artifactId, 1)) {
+            console.warn('Player does not have artifact in inventory');
+            return false;
+        }
+
+        this.scene.inventorySystem.removeItem(artifactId, 1);
+
+        // Mark as donated
+        artifact.donatedToMuseum = true;
+        this.collectedArtifacts.add(artifactId);
+
+        // Update category progress
+        const category = this.albumCategories.get(artifact.category);
+        category.collected++;
+
+        // Kustos thanks dialogue
+        this.scene.dialogueSystem?.startDialogue('kustos', 'thank_donation', { artifact: artifact.name });
+
+        // Check for museum evolution
+        this.checkEvolutionTrigger();
+
+        // Achievement check
+        this.checkCompletionAchievements();
+
+        console.log(`📦 Donated ${artifact.name} to museum`);
+        return true;
+    }
+
+    /**
+     * Check if museum should evolve to next stage
+     */
+    checkEvolutionTrigger() {
+        const totalDonated = this.collectedArtifacts.size;
+
+        // Stage thresholds
+        const stageThresholds = {
+            1: 4,  // Stage 1: 4 artifacts donated
+            2: 8,  // Stage 2: 8 artifacts donated
+            3: 12  // Stage 3: All 12 artifacts donated
+        };
+
+        // Check for evolution
+        for (let stage = 3; stage >= 1; stage--) {
+            if (totalDonated >= stageThresholds[stage] && this.currentStage < stage) {
+                this.evolveMuseum(stage);
+                break;
+            }
+        }
+    }
+
+    /**
+     * Evolve museum to next stage
+     */
+    evolveMuseum(newStage) {
+        if (newStage <= this.currentStage) return;
+
+        this.currentStage = newStage;
+
+        // Update building visual
+        this.updateMuseumVisual(newStage);
+
+        // VFX: Building evolution
+        this.scene.vfxSystem?.playEffect('museum_evolution', 1500, 600);
+
+        // Notification
+        const stageNames = {
+            1: 'Partial Collection',
+            2: 'Advanced Exhibition',
+            3: 'World-Class Museum'
+        };
+
+        this.scene.uiSystem?.showNotification(
+            `Museum evolved: ${stageNames[newStage]}!`,
+            'success'
+        );
+
+        // Kustos special dialogue
+        this.scene.dialogueSystem?.startDialogue('kustos', `museum_stage_${newStage}`);
+
+        // Grant benefits
+        this.grantStageBenefits(newStage);
+
+        console.log(`🏛️ Museum evolved to Stage ${newStage}: ${stageNames[newStage]}`);
+    }
+
+    /**
+     * Update museum building sprite
+     */
+    updateMuseumVisual(stage) {
+        // Load corresponding sprite: museum_stage_1, museum_stage_2, museum_stage_3
+        const sprite = this.scene.buildingSystem.getBuilding('museum');
+        if (sprite) {
+            sprite.setTexture(`museum_stage_${stage}`);
+        }
+    }
+
+    /**
+     * Grant benefits for reaching museum stage
+     */
+    grantStageBenefits(stage) {
+        switch (stage) {
+            case 1:
+                // Stage 1: Basic lore access
+                this.scene.gameState.unlocks.lore_system = true;
+                this.scene.uiSystem?.unlockTab('lore');
+                break;
+            case 2:
+                // Stage 2: Research bonuses
+                this.scene.gameState.buffs.research_speed = 1.25; // +25% research
+                break;
+            case 3:
+                // Stage 3: Full collection bonus
+                this.scene.gameState.buffs.artifact_discovery = 2.0; // 2x artifact find rate
+                this.scene.achievementSystem?.unlock('master_curator');
+                break;
+        }
+    }
+
+    /**
+     * Trigger Kustos dialogue about found artifact
+     */
+    triggerKustosDialogue(artifactId) {
+        const artifact = this.artifacts.get(artifactId);
+
+        // Show notification to visit Kustos
+        this.scene.uiSystem?.showNotification(
+            `Kustos might be interested in the ${artifact.name}`,
+            'info',
+            { icon: 'museum' }
+        );
+    }
+
+    /**
+     * Check for collection completion achievements
+     */
+    checkCompletionAchievements() {
+        // Check category completion
+        this.albumCategories.forEach((category, categoryId) => {
+            if (category.collected === category.totalArtifacts) {
+                this.scene.achievementSystem?.unlock(`complete_${categoryId}_collection`);
+            }
+        });
+
+        // Check total completion
+        if (this.collectedArtifacts.size === this.artifacts.size) {
+            this.scene.achievementSystem?.unlock('complete_museum_collection');
+        }
+    }
+
+    /**
+     * Get album progress
+     */
+    getAlbumProgress() {
+        const categories = {};
+
+        this.albumCategories.forEach((category, categoryId) => {
+            categories[categoryId] = {
+                ...category,
+                progress: Math.round((category.collected / category.totalArtifacts) * 100)
+            };
+        });
+
+        return {
+            categories,
+            totalArtifacts: this.artifacts.size,
+            totalCollected: this.collectedArtifacts.size,
+            overallProgress: Math.round((this.collectedArtifacts.size / this.artifacts.size) * 100)
+        };
+    }
+
+    /**
+     * Get artifacts by category for UI display
+     */
+    getArtifactsByCategory(categoryId) {
+        return Array.from(this.artifacts.values())
+            .filter(a => a.category === categoryId);
+    }
+
+    /**
+     * Get museum stage info
+     */
+    getStageInfo() {
+        const stageData = {
+            0: { name: 'Ruined', description: 'Museum is destroyed' },
+            1: { name: 'Partial Collection', description: '4 artifacts displayed' },
+            2: { name: 'Advanced Exhibition', description: '8 artifacts displayed' },
+            3: { name: 'World-Class Museum', description: 'All 12 artifacts displayed' }
+        };
+
+        return {
+            currentStage: this.currentStage,
+            ...stageData[this.current Stage],
+            nextStageRequirement: this.currentStage < 3 ? [4, 8, 12][this.currentStage] : null,
+            currentArtifacts: this.collectedArtifacts.size
+        };
+    }
+}
diff --git a/src/systems/TownRestorationLogic.js b/src/systems/TownRestorationLogic.js
new file mode 100644
index 000000000..034f7b774
--- /dev/null
+++ b/src/systems/TownRestorationLogic.js
@@ -0,0 +1,474 @@
+/**
+ * TOWN RESTORATION LOGIC SYSTEM
+ * Complete logic for restoring buildings in Mrtva Dolina
+ * Handles material requirements, construction progress, worker assignments, NPC unlocks
+ */
+
+export class TownRestorationLogic {
+    constructor(scene) {
+        this.scene = scene;
+
+        // Building states
+        this.buildings = new Map(); //buildingId → buildingData
+
+        // Construction queues
+        this.activeConstructions = [];
+
+        // Worker management
+        this.assignedWorkers = new Map(); // buildingId → [workerIds]
+
+        // NPC unlock tracking
+        this.unlockedNPCs = new Set();
+
+        this.init();
+    }
+
+    init() {
+        this.initializeBuildingDatabase();
+    }
+
+    /**
+     * Initialize all 14 buildings with restoration data
+     */
+    initializeBuildingDatabase() {
+        const buildingSpecs = [
+            {
+                id: 'hospital',
+                name: 'Hospital',
+                npcUnlock: 'Ana', // Doctor Ana unlocked
+                materials: {
+                    wood: 150,
+                    stone: 100,
+                    metal: 50,
+                    tools: 20
+                },
+                constructionTime: 3600, // 1 hour
+                stages: 3,
+                benefits: ['healing', 'medical_supplies']
+            },
+            {
+                id: 'police',
+                name: 'Police Station',
+                npcUnlock: null,
+                materials: {
+                    wood: 100,
+                    stone: 150,
+                    metal: 80,
+                    weapons: 10
+                },
+                constructionTime: 3600,
+                stages: 3,
+                benefits: ['security', 'patrol_unlock']
+            },
+            {
+                id: 'mayor_office',
+                name: "Mayor's Office",
+                npcUnlock: 'Župan', // Mayor unlocked
+                materials: {
+                    wood: 120,
+                    stone: 80,
+                    metal: 40,
+                    papers: 50
+                },
+                constructionTime: 2400,
+                stages: 3,
+                benefits: ['election_unlock', 'city_management']
+            },
+            {
+                id: 'tech_workshop',
+                name: 'Tech Workshop',
+                npcUnlock: 'Tehnik', // Technician unlocked
+                materials: {
+                    wood: 80,
+                    stone: 60,
+                    metal: 150,
+                    electronics: 30
+                },
+                constructionTime: 3000,
+                stages: 3,
+                benefits: ['tech_upgrades', 'electronics_crafting']
+            },
+            {
+                id: 'tailor',
+                name: 'Tailor Shop',
+                npcUnlock: 'Šivilja', // Seamstress unlocked
+                materials: {
+                    wood: 60,
+                    fabric: 100,
+                    thread: 50,
+                    tools: 15
+                },
+                constructionTime: 1800,
+                stages: 3,
+                benefits: ['armor_crafting', 'clothing_upgrades']
+            },
+            {
+                id: 'museum',
+                name: 'Museum',
+                npcUnlock: 'Kustos', // Curator unlocked
+                materials: {
+                    wood: 100,
+                    stone: 120,
+                    glass: 40,
+                    artifacts: 10
+                },
+                constructionTime: 4800, // 80 minutes - complex restoration
+                stages: 3,
+                benefits: ['lore_unlock', 'artifact_collection']
+            },
+            {
+                id: 'school',
+                name: 'School',
+                npcUnlock: 'Teacher', // Teacher unlocked
+                materials: {
+                    wood: 90,
+                    stone: 70,
+                    books: 50,
+                    tools: 20
+                },
+                constructionTime: 3600,
+                stages: 3,
+                benefits: ['buff_unlock', 'education_system']
+            },
+            {
+                id: 'church',
+                name: 'Church',
+                npcUnlock: 'Župnik', // Priest unlocked
+                materials: {
+                    wood: 80,
+                    stone: 200,
+                    metal: 30,
+                    religious_items: 5
+                },
+                constructionTime: 5400, // 90 minutes - sacred restoration
+                stages: 3,
+                benefits: ['blessing_system', 'graveyard_access']
+            },
+            {
+                id: 'blacksmith',
+                name: 'Blacksmith',
+                npcUnlock: 'Ivan Kovač', // Already available
+                materials: {
+                    wood: 50,
+                    stone: 100,
+                    metal: 120,
+                    coal: 80
+                },
+                constructionTime: 3000,
+                stages: 3,
+                benefits: ['weapon_crafting', 'tool_upgrades']
+            },
+            {
+                id: 'bakery',
+                name: 'Bakery',
+                npcUnlock: 'Pek', // Baker unlocked
+                materials: {
+                    wood: 70,
+                    stone: 50,
+                    flour: 100,
+                    tools: 10
+                },
+                constructionTime: 2400,
+                stages: 3,
+                benefits: ['food_production', 'energy_bonus']
+            }
+        ];
+
+        buildingSpecs.forEach(spec => {
+            this.buildings.set(spec.id, {
+                ...spec,
+                currentState: 'ruined', // ruined, under_construction, restored
+                currentStage: 0, // 0 = ruined, 1-3 = construction stages
+                progress: 0, // 0-100% construction progress
+                workersAssigned: 0,
+                materialsPaid: false,
+                completionTime: null
+            });
+        });
+    }
+
+    /**
+     * Check if player can start building restoration
+     */
+    canStartRestoration(buildingId) {
+        const building = this.buildings.get(buildingId);
+        if (!building) return { canStart: false, reason: 'Building not found' };
+
+        if (building.currentState !== 'ruined') {
+            return { canStart: false, reason: 'Building already restored or under construction' };
+        }
+
+        // Check materials
+        const inventory = this.scene.inventorySystem;
+        for (const [material, amount] of Object.entries(building.materials)) {
+            if (!inventory.hasItem(material, amount)) {
+                return {
+                    canStart: false,
+                    reason: `Not enough ${material}. Need ${amount}, have ${inventory.getItemCount(material)}`
+                };
+            }
+        }
+
+        return { canStart: true };
+    }
+
+    /**
+     * Start building restoration
+     */
+    startRestoration(buildingId) {
+        const check = this.canStartRestoration(buildingId);
+        if (!check.canStart) {
+            console.warn(`Cannot start restoration: ${check.reason}`);
+            return false;
+        }
+
+        const building = this.buildings.get(buildingId);
+        const inventory = this.scene.inventorySystem;
+
+        // Deduct materials
+        for (const [material, amount] of Object.entries(building.materials)) {
+            inventory.removeItem(material, amount);
+        }
+
+        // Start construction
+        building.currentState = 'under_construction';
+        building.currentStage = 1;
+        building.progress = 0;
+        building.materialsPaid = true;
+        building.completionTime = Date.now() + (building.constructionTime * 1000);
+
+        this.activeConstructions.push(buildingId);
+
+        // Spawn scaffolding visual
+        this.spawnConstructionVisuals(buildingId);
+
+        console.log(`Started restoration of ${building.name}`);
+        return true;
+    }
+
+    /**
+     * Assign workers to speed up construction
+     */
+    assignWorker(buildingId, workerType = 'zombie') {
+        const building = this.buildings.get(buildingId);
+        if (!building || building.currentState !== 'under_construction') return false;
+
+        const speedBonus = {
+            'zombie': 0.1, // 10% faster per zombie
+            'human': 0.25, // 25% faster per human NPC
+            'kai': 0.5 // Kai works fastest
+        };
+
+        building.workersAssigned++;
+
+        if (!this.assignedWorkers.has(buildingId)) {
+            this.assignedWorkers.set(buildingId, []);
+        }
+        this.assignedWorkers.get(buildingId).push({ type: workerType, bonus: speedBonus[workerType] });
+
+        console.log(`Assigned ${workerType} to ${building.name}. Speed bonus: +${speedBonus[workerType] * 100}%`);
+        return true;
+    }
+
+    /**
+     * Update construction progress
+     */
+    update(deltaTime) {
+        this.activeConstructions.forEach(buildingId => {
+            const building = this.buildings.get(buildingId);
+
+            // Calculate progress speed (base: 100% over constructionTime)
+            let baseSpeed = (100 / building.constructionTime) * (deltaTime / 1000);
+
+            // Apply worker bonuses
+            if (this.assignedWorkers.has(buildingId)) {
+                const workers = this.assignedWorkers.get(buildingId);
+                const totalBonus = workers.reduce((sum, w) => sum + w.bonus, 0);
+                baseSpeed *= (1 + totalBonus);
+            }
+
+            building.progress += baseSpeed;
+
+            // Check stage transitions
+            if (building.progress >= 33 && building.currentStage === 1) {
+                building.currentStage = 2;
+                this.updateBuildingVisual(buildingId, 2);
+            } else if (building.progress >= 66 && building.currentStage === 2) {
+                building.currentStage = 3;
+                this.updateBuildingVisual(buildingId, 3);
+            }
+
+            // Check completion
+            if (building.progress >= 100) {
+                this.completeRestoration(buildingId);
+            }
+        });
+    }
+
+    /**
+     * Complete building restoration
+     */
+    completeRestoration(buildingId) {
+        const building = this.buildings.get(buildingId);
+
+        building.currentState = 'restored';
+        building.currentStage = 3;
+        building.progress = 100;
+
+        // Remove from active constructions
+        const index = this.activeConstructions.indexOf(buildingId);
+        if (index > -1) this.activeConstructions.splice(index, 1);
+
+        // Remove scaffolding
+        this.removeConstructionVisuals(buildingId);
+
+        // Update building sprite to restored
+        this.updateBuildingVisual(buildingId, 'restored');
+
+        // VFX: Building restoration sparkles
+        this.scene.vfxSystem?.playEffect('building_restoration', building.x, building.y);
+
+        // Unlock NPC if applicable
+        if (building.npcUnlock) {
+            this.unlockNPC(building.npcUnlock);
+        }
+
+        // Grant benefits
+        this.grantBuildingBenefits(buildingId);
+
+        console.log(`✅ ${building.name} restored! NPC unlocked: ${building.npcUnlock || 'None'}`);
+
+        // Quest completion check
+        this.scene.questSystem?.checkBuildingRestoration(buildingId);
+    }
+
+    /**
+     * Unlock NPC after building restoration
+     */
+    unlockNPC(npcName) {
+        if (this.unlockedNPCs.has(npcName)) return;
+
+        this.unlockedNPCs.add(npcName);
+
+        // Spawn NPC in town
+        const npcData = this.getNPCSpawnData(npcName);
+        this.scene.npcSystem?.spawnNPC(npcName, npcData.x, npcData.y);
+
+        // Notification
+        this.scene.uiSystem?.showNotification(`${npcName} has arrived in Mrtva Dolina!`, 'success');
+
+        console.log(`🎉 NPC unlocked: ${npcName}`);
+    }
+
+    /**
+     * Get NPC spawn location based on their building
+     */
+    getNPCSpawnData(npcName) {
+        const spawnLocations = {
+            'Ana': { x: 1200, y: 800 }, // Hospital
+            'Župan': { x: 1400, y: 700 }, // Mayor's Office
+            'Tehnik': { x: 1100, y: 900 }, // Tech Workshop
+            'Šivilja': { x: 1300, y: 1000 }, // Tailor
+            'Kustos': { x: 1500, y: 600 }, // Museum
+            'Teacher': { x: 1000, y: 700 }, // School
+            'Župnik': { x: 1600, y: 500 }, // Church
+            'Pek': { x: 900, y: 800 } // Bakery
+        };
+
+        return spawnLocations[npcName] || { x: 1200, y: 800 };
+    }
+
+    /**
+     * Grant building benefits to player
+     */
+    grantBuildingBenefits(buildingId) {
+        const building = this.buildings.get(buildingId);
+
+        building.benefits.forEach(benefit => {
+            switch (benefit) {
+                case 'healing':
+                    this.scene.gameState.unlocks.healing = true;
+                    break;
+                case 'security':
+                    this.scene.defenseSystem?.unlockPatrols();
+                    break;
+                case 'election_unlock':
+                    this.scene.electionSystem?.unlockElections();
+                    break;
+                case 'tech_upgrades':
+                    this.scene.craftingSystem?.unlockCategory('electronics');
+                    break;
+                case 'armor_crafting':
+                    this.scene.craftingSystem?.unlockCategory('armor');
+                    break;
+                case 'lore_unlock':
+                    this.scene.gameState.unlocks.museum = true;
+                    break;
+                case 'buff_unlock':
+                    this.scene.schoolSystem?.enable();
+                    break;
+                case 'blessing_system':
+                    this.scene.churchSystem?.enable();
+                    break;
+                case 'weapon_crafting':
+                    this.scene.craftingSystem?.unlockCategory('weapons');
+                    break;
+                case 'food_production':
+                    this.scene.gameState.unlocks.bakery = true;
+                    break;
+            }
+        });
+    }
+
+    /**
+     * Visual updates
+     */
+    spawnConstructionVisuals(buildingId) {
+        // Spawn scaffolding sprite
+        // Spawn worker NPCs/zombies
+        // Add construction sounds
+    }
+
+    removeConstructionVisuals(buildingId) {
+        // Remove scaffolding
+        // Remove workers
+        // Stop construction sounds
+    }
+
+    updateBuildingVisual(buildingId, stageOrState) {
+        // Update building sprite to show construction progress or restored state
+        // stages: 1 (10-30% built), 2 (30-70% built), 3 (70-100% built)
+        // 'restored' = final completed building
+    }
+
+    /**
+     * Get building restoration status
+     */
+    getBuildingStatus(buildingId) {
+        return this.buildings.get(buildingId);
+    }
+
+    /**
+     * Get all restorable buildings
+     */
+    getAllBuildings() {
+        return Array.from(this.buildings.values());
+    }
+
+    /**
+     * Get restoration progress summary
+     */
+    getRestorationProgress() {
+        const total = this.buildings.size;
+        const restored = Array.from(this.buildings.values()).filter(b => b.currentState === 'restored').length;
+        const underConstruction = this.activeConstructions.length;
+
+        return {
+            total,
+            restored,
+            underConstruction,
+            ruined: total - restored - underConstruction,
+            percentComplete: Math.round((restored / total) * 100)
+        };
+    }
+}