diff --git a/src/components/projects/krimiDinner.jsx b/src/components/projects/krimiDinner.jsx
index 820aeeb..a465446 100644
--- a/src/components/projects/krimiDinner.jsx
+++ b/src/components/projects/krimiDinner.jsx
@@ -3,11 +3,11 @@ import { Container, Row, Col, Card, Badge, Table, Button, Form, Nav } from "reac
 import mermaid from "mermaid";
 
 const Wireframe = ({ title, children }) => (
-    <Col md={6} lg={4} className="mb-4">
-        <Card className="h-100 shadow-sm">
+    <Col md={6} lg={4} className="mb-4" style={{ minWidth: 0 }}>
+        <Card className="h-100 shadow-sm" style={{ overflow: 'hidden' }}>
             <Card.Header as="h5" className="text-center bg-light">{title}</Card.Header>
-            <Card.Body className="d-flex justify-content-center align-items-center p-2">
-                <div className="bg-white w-100 h-100 border rounded-3 shadow-inner p-3 d-flex flex-column" style={{ aspectRatio: '9 / 19.5' }}>
+            <Card.Body className="d-flex justify-content-center align-items-center p-2" style={{ overflow: 'hidden' }}>
+                <div className="bg-white w-100 h-100 border rounded-3 shadow-inner p-3 d-flex flex-column" style={{ aspectRatio: '9 / 19.5', overflow: 'hidden' }}>
                     {children}
                 </div>
             </Card.Body>
@@ -18,17 +18,33 @@ const Wireframe = ({ title, children }) => (
 
 function KrimiDinner() {
     useEffect(() => {
-        mermaid.initialize({ startOnLoad: false, theme: 'neutral' });
+        // Initialize mermaid and only run if there are mermaid diagrams on the page
         try {
-            mermaid.run();
-        } catch (e) {
-            console.error("Mermaid run error:", e);
+            mermaid.initialize({ startOnLoad: false, theme: 'neutral' });
+            const mermaidEls = typeof document !== 'undefined' ? document.querySelectorAll('.mermaid') : [];
+            if (mermaid && typeof mermaid.run === 'function' && mermaidEls.length > 0) {
+                try {
+                    mermaid.run();
+                } catch (e) {
+                    if (e && e.message) {
+                        console.error("Mermaid run error:", e.message, e);
+                    } else {
+                        try {
+                            console.error("Mermaid run error (stringified):", JSON.stringify(e));
+                        } catch (stringifyErr) {
+                            console.error("Mermaid run error (object):", e);
+                        }
+                    }
+                }
+            }
+        } catch (initErr) {
+            console.error('Mermaid init error:', initErr);
         }
     }, []);
 
   return (
     <div className="project-page">
-      <Container>
+      <Container className="mt-4">
         <header className="text-center border-bottom pb-4 mb-5">
           <h1 className="project-title">Projekt-Blaupause: KI-Krimi-Dinner "Projekt Chimera"</h1>
           <div className="mt-4 d-flex justify-content-center flex-wrap">
@@ -114,40 +130,36 @@ function KrimiDinner() {
           <p>
             Die Architektur ist auf maximale Kontrolle und Skalierbarkeit ausgelegt. Die React Native-Clients kommunizieren ausschließlich mit dem FastAPI-Backend. Echtzeit-Updates werden über eine WebSocket-Verbindung gepusht.
           </p>
-          <div className="text-center bg-light p-3 rounded">
-            <pre className="mermaid">
-              {`
-                graph TD
-                    subgraph "Spieler-Geräte"
-                        P1["React Native Apps"]
-                    end
+          <div className="text-center bg-light p-3 rounded mermaid">
+{`graph TD
+    subgraph "Spieler-Geräte"
+        P1["React Native Apps"]
+    end
 
-                    subgraph "Authentifizierung"
-                        Auth["Supabase Auth"]
-                    end
+    subgraph "Authentifizierung"
+        Auth["Supabase Auth"]
+    end
 
-                    subgraph "Sicheres Backend"
-                        FastAPI["FastAPI Server <br> REST & WebSockets"]
-                    end
+    subgraph "Sicheres Backend"
+        FastAPI["FastAPI Server <br> REST & WebSockets"]
+    end
 
-                    subgraph "Spieldaten-Bank"
-                        PG_DB["PostgreSQL DB"]
-                    end
+    subgraph "Spieldaten-Bank"
+        PG_DB["PostgreSQL DB"]
+    end
 
-                    subgraph "Externe Dienste"
-                        OAI["OpenAI API"]
-                    end
+    subgraph "Externe Dienste"
+        OAI["OpenAI API"]
+    end
 
-                    %% Verbindungen
-                    P1 -- "1. Login" --> Auth
-                    P1 -- "2. API Calls (mit Token)" --> FastAPI
+    %% Verbindungen
+    P1 -- "1. Login" --> Auth
+    P1 -- "2. API Calls (mit Token)" --> FastAPI
 
-                    FastAPI -- "3. KI Call" --> OAI
-                    FastAPI -- "4. DB-Zugriff" --> PG_DB
+    FastAPI -- "3. KI Call" --> OAI
+    FastAPI -- "4. DB-Zugriff" --> PG_DB
 
-                    FastAPI -- "5. WebSocket Updates" --> P1
-              `}
-            </pre>
+    FastAPI -- "5. WebSocket Updates" --> P1`}
           </div>
           <h3 className="mt-4">Datenfluss-Beschreibung:</h3>
           <ol>
@@ -162,6 +174,7 @@ function KrimiDinner() {
         <section className="mb-5">
             <h2>4. User Interface (UI) Konzept</h2>
             <p>Die UI-Konzepte werden als klare, moderne Wireframes visualisiert, um den gesamten App-Flow darzustellen.</p>
+            <Container fluid className="px-0">
             <Row>
                 <Wireframe title="1. Login">
                     <div className="text-center pt-4 pb-3">
@@ -439,6 +452,7 @@ function KrimiDinner() {
                     </div>
                 </Wireframe>
             </Row>
+            </Container>
         </section>
 
         <section className="mb-5">
diff --git a/src/index.js b/src/index.js
index 889c351..70e13d5 100644
--- a/src/index.js
+++ b/src/index.js
@@ -5,6 +5,14 @@ import './styles/styles.css';
 import App from "./components/app";
 
 const root = ReactDOM.createRoot(document.getElementById("root"));
+// Global error handlers to surface full error objects for debugging in the browser console
+window.addEventListener('error', (event) => {
+    // event.error may be an Error instance or any thrown value
+    console.error('Global error event:', event.error ?? event.message ?? event);
+});
+window.addEventListener('unhandledrejection', (event) => {
+    console.error('Unhandled promise rejection:', event.reason);
+});
 root.render(
     <React.StrictMode>
         <div className="app-container">
diff --git a/src/styles/styles.css b/src/styles/styles.css
index 0a97d26..daaa5db 100644
--- a/src/styles/styles.css
+++ b/src/styles/styles.css
@@ -6,6 +6,9 @@ body {
     margin: 0;
     padding: 0;
     overflow-x: hidden;
+    width: 100%;
+    max-width: 100vw;
+    box-sizing: border-box;
 }
 
 .app-container {
@@ -57,9 +60,17 @@ a {
     text-decoration: none;
 }
 
-a:hover {
-    color: #0056b3;
-    text-decoration: underline;
+code {
+    overflow-x: auto;
+    word-break: break-all;
+    max-width: 100%;
+}
+
+pre {
+    overflow-x: auto;
+    max-width: 100%;
+    word-wrap: break-word;
+    white-space: pre-wrap;
 }
 
 .navigation {
@@ -78,7 +89,7 @@ a:hover {
     padding-top: 0.8rem;
     padding-bottom: 0.8rem;
     width: 100%;
-    max-width: 1100px;
+    max-width: 1000px;
 }
 
 .my-name {
@@ -194,9 +205,9 @@ section {
 
 
 .project-page {
-
     overflow-x: hidden;
-
+    width: 100%;
+    box-sizing: border-box;
 }
 
 
@@ -206,15 +217,15 @@ section {
 
 
 .mermaid {
-
-
-
-    overflow-x: auto;
-
-
-
+    overflow: hidden !important;
     text-align: center;
-
-
-
+    max-width: 100%;
+    width: 100%;
+    box-sizing: border-box;
+    display: block;
+}
+
+.mermaid svg {
+    max-width: 100% !important;
+    height: auto !important;
 }