diff --git a/electron/main/custom_document.html b/electron/main/custom_document.html
new file mode 100644
index 0000000..f1d9561
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+++ b/electron/main/custom_document.html
@@ -0,0 +1,159 @@
+<!DOCTYPE html>
+<html lang="de">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Custom Document</title>
+    <style>
+        body {
+            font-family: Arial, sans-serif;
+            background: #f0f2f5;
+            margin: 0;
+            padding: 0;
+            display: flex;
+            justify-content: center;
+            align-items: flex-start;
+            min-height: 100vh;
+        }
+
+        .container {
+            background: white;
+            padding: 30px;
+            margin-top: 50px;
+            border-radius: 12px;
+            box-shadow: 0 4px 20px rgba(0,0,0,0.1);
+            width: 90%;
+            max-width: 600px;
+        }
+
+        h1 {
+            text-align: center;
+            color: #333;
+        }
+
+        label {
+            font-weight: bold;
+            margin-top: 15px;
+            display: block;
+            color: #555;
+        }
+
+        input[type="text"], textarea, select {
+            width: 100%;
+            padding: 10px;
+            margin-top: 5px;
+            border-radius: 6px;
+            border: 1px solid #ccc;
+            font-size: 14px;
+        }
+
+        textarea {
+            height: 120px;
+            resize: vertical;
+        }
+
+        .buttons {
+            display: flex;
+            justify-content: space-between;
+            margin-top: 25px;
+        }
+
+        button {
+            padding: 10px 20px;
+            font-size: 14px;
+            border: none;
+            border-radius: 6px;
+            cursor: pointer;
+            transition: 0.2s;
+            background-color: #007BFF;
+            color: white;
+        }
+
+        button:hover {
+            background-color: #0056b3;
+        }
+
+        @media (max-width: 500px) {
+            .buttons {
+                flex-direction: column;
+            }
+            .buttons button {
+                width: 100%;
+                margin-top: 10px;
+            }
+        }
+
+        #result {
+            margin-top: 20px;
+            color: #333;
+            word-break: break-word;
+        }
+    </style>
+</head>
+<body>
+    <div class="container">
+        <h1>Custom Document Generator</h1>
+
+        <label for="docName">Dokumentname:</label>
+        <input type="text" id="docName" placeholder="Gib hier den Dokumentnamen ein">
+
+        <label for="existingDocs">Vorhandene Dokumente auswählen (optional):</label>
+        <select id="existingDocs">
+            <option value="">-- Neues Dokument erstellen --</option>
+            <option value="meeting_report_001">Meeting Report 001</option>
+            <option value="summary_01">Summary 01</option>
+            <option value="project_plan_A">Project Plan A</option>
+        </select>
+
+        <label for="prompt">Dein Prompt:</label>
+        <textarea id="prompt" placeholder="Schreibe hier den Prompt für dein Dokument..."></textarea>
+
+        <div class="buttons">
+            <button id="goBackBtn">Abbrechen</button>
+            <button id="generateBtn">Dokument speichern</button>
+        </div>
+
+        <div id="result"></div>
+    </div>
+
+    <script>
+        const goBackBtn = document.getElementById("goBackBtn");
+        const generateBtn = document.getElementById("generateBtn");
+        const existingDocs = document.getElementById("existingDocs");
+        const docNameInput = document.getElementById("docName");
+        const promptInput = document.getElementById("prompt");
+        const resultDiv = document.getElementById("result");
+
+        // Zurück zur Haupt-GUI
+        goBackBtn.addEventListener("click", () => {
+            window.electronAPI.goBackToMain();
+        });
+
+        // Generiere Dokument
+        generateBtn.addEventListener("click", () => {
+            const prompt = promptInput.value.trim();
+            let docName = docNameInput.value.trim();
+            const selectedExisting = existingDocs.value;
+
+            if (!prompt) {
+                alert("Bitte gib einen Prompt ein!");
+                return;
+            }
+
+            // Wenn ein vorhandenes Dokument ausgewählt wurde, hängt der Prompt daran
+            if (selectedExisting) {
+                docName = selectedExisting; // prompt wird an vorhandenes Dokument angehängt
+            } else if (!docName) {
+                alert("Bitte gib einen Dokumentnamen ein, wenn du ein neues Dokument erstellen möchtest!");
+                return;
+            }
+
+            // Demo-Ausgabe im Result-Div
+            resultDiv.innerHTML = `<strong>Dokumentname:</strong> ${docName}<br><strong>Prompt:</strong> ${prompt}`;
+
+            // Hier kannst du den Prompt an dein LLM oder Module-Handler senden
+            // z.B. window.submit.submit({documentName: docName, prompt: prompt})
+        });
+    </script>
+</body>
+</html>
