diff --git a/README.md b/README.md
index 469a9e2..c0ba1f6 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,10 @@ StorageRouter (main entry point)
 ```mermaid
 %%{init: {'theme': 'base', 'themeVariables': { 'fontSize': '16px', 'primaryColor': '#ffffff', 'lineColor': '#000000', 'textColor': '#000000', 'mainBkg': '#ffffff', 'nodeBorder': '#000000' }}}%%
 flowchart TD
+    %% Global White Container
+    subgraph Architecture ["LocalData Architecture"]
+    direction TB
+    
     %% Vertical Flow
     App(("📱 <b>APP / FEATURE</b>"))
     
@@ -51,8 +55,10 @@ flowchart TD
     
     %% Migration Loop
     Storage -.->|<b>3. AUTOMATIC MIGRATION</b>| SR
+    end
 
     %% Explicit Styling for High Contrast
+    style Architecture fill:#ffffff,stroke:#000,stroke-width:2px
     style App fill:#ffffff,stroke:#000,stroke-width:3px
     style SR fill:#e1f5fe,stroke:#000,stroke-width:4px
     style Config fill:#fffde7,stroke:#000,stroke-dasharray: 5 5