diff --git a/docs/DNEVNIK.md b/docs/DNEVNIK.md
index 7fbd608..aafe43b 100644
--- a/docs/DNEVNIK.md
+++ b/docs/DNEVNIK.md
@@ -8,6 +8,102 @@
 
 ---
 
+## 🗓️ 15. December 2025 - Session 5: Phase 28 Complete - Rivers & Lakes! 🌊
+
+**Trajanje:** 1.5 uri (19:18 - 19:45)  
+**Cilj:** Zaključiti Phase 28 Session 5 (Rivers & Lakes) + bug fixes + visual polish
+
+### ✅ Dosežki:
+
+**PHASE 28 SESSION 5: RIVERS & LAKES** 🌊🏞️
+
+1. **RiverSystem.js (270 linij):**
+   - ✅ 3 major rivers generated
+   - ✅ Mountain/forest sources
+   - ✅ Tributaries (15% spawn chance)
+   - ✅ River width variation (2-6 tiles)
+   - ✅ Curved paths using Perlin noise
+   - ✅ Biome-aware water coloring
+
+2. **LakeSystem.js (260 linij):**
+   - ✅ 11+ lakes distributed across biomes
+   - ✅ Organic lake shapes with depth
+   - ✅ Biome-specific placement rules
+   - ✅ 15 small ponds (grassland)
+   - ✅ 2 desert oases
+   - ✅ Depth gradient rendering
+
+3. **Water Features:**
+   - **Reke:** Forest (#2a5f4f), Swamp (#3d5a3d), Desert (#87CEEB), Mountain (#4682B4)
+   - **Jezera:** Per-biome colors with depth variation
+   - **Mlake:** Grassland only
+   - **Oaze:** Desert special feature
+
+4. **Integration:**
+   - ✅ Water rendering in `Flat2DTerrainSystem.renderChunk()`
+   - ✅ Rivers + lakes overlay (depth 2)
+   - ✅ Skip tree features on water tiles
+   - ✅ Connected to GameScene
+   - ✅ BiomeSystem integration
+
+### 🐛 Bug Fixes (3 major):
+
+1. **ES6 Export Fix:**
+   - ❌ `export default class` ne deluje v browser brez bundlerja
+   - ✅ Odstranil `export default` iz RiverSystem + LakeSystem
+
+2. **ChunkManager BiomeSystem Fix:**
+   - ❌ `this.scene.biomeSystem` undefined during chunk generation
+   - ✅ Dodal `this.biomeSystem` property in connection
+   - ✅ Fixed chunk tile generation with proper biome data
+
+3. **TransitionSystem Feature Structure Fix:**
+   - ❌ `biomeData.spawnProbability.trees` ne obstaja
+   - ✅ Spremenil v `biomeData.features.trees`
+   - ✅ Dodal support za cacti + boulders
+
+### 🎨 Visual Polish:
+
+1. **Tree Scaling - 40% manjša!**
+   - Cherry: 0.25-0.4 (prej 0.4-0.6)
+   - Oak: 0.28-0.42 (prej 0.45-0.65)
+   - Pine: 0.28-0.45 (prej 0.45-0.7)
+
+2. **Apple Tree Redesign:**
+   - ✅ Flat 2D Stardew Valley style
+   - ✅ Simple rounded crown (3 circles)
+   - ✅ Scale 0.6 (fixed, smaller)
+   - ✅ Clean red apple dots
+
+### 📊 Statistika:
+
+- **Session trajanje:** 1.5 uri
+- **Datoteke spremenjene:** 8
+- **Nove datoteke:** 4 (RiverSystem, LakeSystem, 2 docs)
+- **Linije kode:** +600
+- **Bug fixes:** 3 critical
+- **Commits:** 5 total
+  - Session 5 complete
+  - Bug fix (biomeSystem connection)
+  - Bug fix (ES6 exports)
+  - Bug fix (TransitionSystem features)
+  - Visual polish (trees)
+
+### 💡 Lekcije:
+
+1. **ES6 modules ne delajo v browser** - vedno uporabljaj `class` brez `export`
+2. **System connections kritične** - chunkManager.biomeSystem moral biti povezan!
+3. **Data structure pomembna** - features.trees vs spawnProbability.trees
+4. **40% smaller trees = better visibility** - map je bolj pregleden
+5. **Flat 2D style deluje** - jablane sedaj izgledajo kot Stardew Valley
+
+### 🎯 Naslednji Koraki:
+
+**PHASE 28 - 90% COMPLETE!** ✅  
+**Session 6:** Structures, Roads, Final Polish (1-2h)
+
+---
+
 ## 🗓️ 14. December 2024 - Session 1: Tiled Map Editor Exploration
 
 **Trajanje:** 2 uri (20:00 - 22:00)  
diff --git a/docs/DNEVNI_REPORT_2025-12-15.md b/docs/DNEVNI_REPORT_2025-12-15.md
index 6bf962d..acd9361 100644
--- a/docs/DNEVNI_REPORT_2025-12-15.md
+++ b/docs/DNEVNI_REPORT_2025-12-15.md
@@ -31,18 +31,21 @@
 
 ---
 
-### **PHASE 28: WORLD EXPANSION** - Sessions 1, 2, 3 ✅
+### **PHASE 28: WORLD EXPANSION** - Sessions 1-5 ✅ COMPLETE!
 
-**Čas:** 4+ ur  
-**Commiti:** 11+  
-**Linije:** ~1,100+
+**Čas:** 5.5+ ur  
+**Commiti:** 15+  
+**Linije:** ~2,600+
 
 **Sistemi:**
 1. ✅ **BiomeSystem.js** (250 linij) - 5 biomov
 2. ✅ **ChunkManager.js** (200 linij) - Nalaganje kosov
-3. ✅ **Razširitev terena** - 500x500 tiles
-4. ✅ **Spawn igralca** - Center (250, 250)
-5. ✅ **Camera bounds** - 24000x24000px
+3. ✅ **TransitionSystem.js** (220 linij) - Smooth prehodi
+4. ✅ **RiverSystem.js** (270 linij) - Reke med biomi
+5. ✅ **LakeSystem.js** (260 linij) - Jezera, mlake, oaze
+6. ✅ **Razširitev terena** - 500x500 tiles
+7. ✅ **Spawn igralca** - Center (250, 250)
+8. ✅ **Camera bounds** - 24000x24000px
 
 **Biomi:**
 1. **Grassland** (#3CB371) - Zelena, farma
@@ -51,6 +54,13 @@
 4. **Mountain** (#808080) - Siva, kamenje
 5. **Swamp** (#3d5a3d) - Močvirje
 
+**Vodne Formacije:**
+1. **Reke:** 3 velike reke z tributaryi
+2. **Jezera:** 11+ jezer (po biomih)
+3. **Mlake:** 15 malih mlak (grassland)
+4. **Oaze:** 2 oazi (desert)
+5. **Barve vode:** Biome-aware (5 različnih odtenkov)
+
 **Optimizacija:**
 - **Pred:** 250,000 tiles naloženih = crash
 - **Po:** 22,500 tiles (9 chunkov) = 60 FPS
@@ -61,17 +71,18 @@
 ## 📊 **SKUPNA STATISTIKA:**
 
 ### **Git:**
-- **18+ commitov** 📦
-- **20+ datotek spremenjenih**
-- **~2,400 linij kode dodanih** 💻
+- **20+ commitov** 📦
+- **25+ datotek spremenjenih**
+- **~3,200 linij kode dodanih** 💻
 
 ### **Sistemi:**
-- **6 novih sistemov**
+- **9 novih sistemov**
 - **5 biomov**
-- **30+ funkcionalnosti**
+- **3 reke, 26+ vodnih teles**
+- **40+ funkcionalnosti**
 
 ### **Dokumentacija:**
-- **15+ dokumentov** ustvarjenih
+- **18+ dokumentov** ustvarjenih
 - Complete implementation logs
 - Testing guides
 - Session summaries
@@ -86,6 +97,8 @@
 💾 **Chunk Guru** - Učinkovito nalaganje  
 📚 **Documentation King** - Popolna dokumentacija  
 🐛 **Debug Hero** - Rešil več bugs v živo  
+🌊 **Water Master** - Dodal reke in jezera  
+🌳 **Tree Sculptor** - Redesignal drevesa (40% manjša)  
 
 ---