diff --git a/SCK-IT-Infrastruktur-mermaid.md b/SCK-IT-Infrastruktur-mermaid.md
index e241570..84fdbcc 100644
--- a/SCK-IT-Infrastruktur-mermaid.md
+++ b/SCK-IT-Infrastruktur-mermaid.md
@@ -7,7 +7,7 @@
 > sinngemäß gesetzt – bitte gegen das Original prüfen.
 
 ```mermaid
-flowchart TB
+flowchart LR
   INT(("Internet")):::net
 
   subgraph PFB["Standort Pferdebachstr. · 10.128.40.0/24"]
@@ -46,7 +46,7 @@ flowchart TB
   end
 
   subgraph SW["Client-Software (Standard)"]
-    direction LR
+    direction TB
     S1["Win11 · M365 Office + Teams + 1Password"]:::sw
     S2["Sophos Endpoint Agent"]:::sw
     S3["Softphone inopla"]:::sw
@@ -69,10 +69,12 @@ flowchart TB
   INO -.-> S3
   VOIP -.-> INO
 
-  classDef net fill:#e7e7ff,stroke:#779;
-  classDef fw fill:#ffd9d9,stroke:#c55,stroke-width:2px;
-  classDef dev fill:#fff,stroke:#aaa;
-  classDef wifi fill:#e3f3e3,stroke:#5a5;
-  classDef sw fill:#fff3cd,stroke:#cb5;
-  classDef cloud fill:#d9ecff,stroke:#48c;
+  classDef net fill:#b9b9f0,stroke:#4a4a99,stroke-width:1.5px;
+  classDef fw fill:#f29a9a,stroke:#a33,stroke-width:2px;
+  classDef dev fill:#e2e2e2,stroke:#888;
+  classDef wifi fill:#a9dca9,stroke:#3a7a3a;
+  classDef sw fill:#ffdb7a,stroke:#b8860b;
+  classDef cloud fill:#9ccdf5,stroke:#2a72b5;
+
+  linkStyle default stroke:#444,stroke-width:2.5px;
 ```