diff --git a/components/ReviewPanel.tsx b/components/ReviewPanel.tsx
index 60aae8d..b064188 100644
--- a/components/ReviewPanel.tsx
+++ b/components/ReviewPanel.tsx
@@ -1,8 +1,7 @@
-import React, { useState, useEffect, useMemo, useCallback } from 'react';
+import React, { useState, useEffect, useMemo } from 'react';
 import { ExtractedField, FileData } from '../types';
-import { Check, Edit2, Download, RefreshCw, FileText, AlertTriangle, XCircle, ArrowRight, PenTool, CheckCircle2, Circle, FileCode, Loader2 } from 'lucide-react';
+import { Check, Edit2, Download, RefreshCw, FileText, AlertTriangle, XCircle, ArrowRight, PenTool, CheckCircle2, Circle, FileCheck } from 'lucide-react';
 import { createFilledPdf } from '../services/pdfService';
-import { generateLatexPdf, isLatexServiceAvailable, detectTemplate, base64ToBlob } from '../services/latexService';
 import { jsPDF } from "jspdf";
 
 interface ReviewPanelProps {
@@ -14,8 +13,6 @@ interface ReviewPanelProps {
   onReset: () => void;
 }
 
-type PdfMode = 'overlay' | 'fillable' | 'latex';
-
 export const ReviewPanel: React.FC<ReviewPanelProps> = ({
   fields: initialFields,
   formFile,
@@ -28,80 +25,28 @@ export const ReviewPanel: React.FC<ReviewPanelProps> = ({
   const [activeField, setActiveField] = useState<number | null>(null);
   const [previewUrl, setPreviewUrl] = useState<string | null>(null);
   const [filterMode, setFilterMode] = useState<'ALL' | 'ATTENTION'>('ALL');
-  const [latexAvailable, setLatexAvailable] = useState<boolean | null>(null);
-  const [pdfMode, setPdfMode] = useState<PdfMode>(isFillablePdf ? 'fillable' : 'overlay');
-  const [isGenerating, setIsGenerating] = useState(false);
-  const [latexPdfBase64, setLatexPdfBase64] = useState<string | null>(null);
-
-  // Detect template from form file name
-  const detectedTemplate = useMemo(() => detectTemplate(formFile.file.name), [formFile.file.name]);
-
-  // Check LaTeX service availability on mount
-  useEffect(() => {
-    const checkLatex = async () => {
-      const available = await isLatexServiceAvailable();
-      setLatexAvailable(available);
-      // Auto-switch to LaTeX mode if available and template detected
-      if (available && detectedTemplate && !isFillablePdf) {
-        setPdfMode('latex');
-      }
-    };
-    checkLatex();
-  }, [detectedTemplate, isFillablePdf]);
 
   // Derived state for progress
   const verifiedCount = fields.filter(f => f.isVerified).length;
   const totalCount = fields.length;
   const progressPercent = Math.round((verifiedCount / totalCount) * 100);
-  
-  const fieldsRequiresAttention = useMemo(() => 
-    fields.filter(f => f.validation?.status !== 'VALID'), 
+
+  const fieldsRequiresAttention = useMemo(() =>
+    fields.filter(f => f.validation?.status !== 'VALID'),
   [fields]);
 
-  // Generate LaTeX PDF
-  const generateLatexPreview = useCallback(async () => {
-    if (!detectedTemplate || pdfMode !== 'latex') return;
-
-    setIsGenerating(true);
-    try {
-      const result = await generateLatexPdf(detectedTemplate, fields);
-      if (result.success && result.pdf) {
-        setLatexPdfBase64(result.pdf);
-        const blob = base64ToBlob(result.pdf);
-        const url = URL.createObjectURL(blob);
-        setPreviewUrl(url);
-      } else {
-        console.error('LaTeX generation failed:', result.error);
-        // Fallback to overlay mode
-        setPdfMode('overlay');
-      }
-    } catch (e) {
-      console.error('LaTeX generation error:', e);
-      setPdfMode('overlay');
-    } finally {
-      setIsGenerating(false);
-    }
-  }, [detectedTemplate, fields, pdfMode]);
-
-  // Generate preview
+  // Generate preview - fills the original PDF directly
   useEffect(() => {
     const updatePreview = async () => {
-      // LaTeX mode - handled separately with button click
-      if (pdfMode === 'latex') {
-        // Only auto-generate if we don't have a preview yet
-        if (!latexPdfBase64) {
-          generateLatexPreview();
-        }
-        return;
-      }
-
       if (formFile.type === 'application/pdf') {
         try {
-          const filledPdfBytes = await createFilledPdf(formFile.base64, fields, pdfMode === 'fillable');
+          const filledPdfBytes = await createFilledPdf(formFile.base64, fields, isFillablePdf);
           const blob = new Blob([filledPdfBytes], { type: 'application/pdf' });
           const url = URL.createObjectURL(blob);
-          setPreviewUrl(url);
-          return () => URL.revokeObjectURL(url);
+          setPreviewUrl(prev => {
+            if (prev) URL.revokeObjectURL(prev);
+            return url;
+          });
         } catch (e) {
           console.error("Failed to generate PDF preview", e);
         }
@@ -110,17 +55,15 @@ export const ReviewPanel: React.FC<ReviewPanelProps> = ({
       }
     };
 
-    // Debounce slightly to avoid rapid updates on typing
-    const timer = setTimeout(updatePreview, 600);
+    const timer = setTimeout(updatePreview, 500);
     return () => clearTimeout(timer);
-  }, [fields, pdfMode, formFile.base64, formFile.type, latexPdfBase64, generateLatexPreview]);
+  }, [fields, isFillablePdf, formFile.base64, formFile.type, formFile.previewUrl]);
 
   const handleUpdate = (index: number, newValue: string) => {
     const newFields = [...fields];
-    newFields[index] = { 
-      ...newFields[index], 
+    newFields[index] = {
+      ...newFields[index],
       value: newValue,
-      // Auto-verify when manually edited
       isVerified: true,
       validation: { ...newFields[index].validation!, status: 'VALID', message: 'Manually verified' }
     };
@@ -129,9 +72,9 @@ export const ReviewPanel: React.FC<ReviewPanelProps> = ({
 
   const toggleVerify = (index: number) => {
     const newFields = [...fields];
-    newFields[index] = { 
-      ...newFields[index], 
-      isVerified: !newFields[index].isVerified 
+    newFields[index] = {
+      ...newFields[index],
+      isVerified: !newFields[index].isVerified
     };
     setFields(newFields);
   };
@@ -144,30 +87,6 @@ export const ReviewPanel: React.FC<ReviewPanelProps> = ({
   };
 
   const handleDownload = async () => {
-    // LaTeX mode - regenerate fresh PDF for download
-    if (pdfMode === 'latex' && detectedTemplate) {
-      setIsGenerating(true);
-      try {
-        const result = await generateLatexPdf(detectedTemplate, fields);
-        if (result.success && result.pdf) {
-          const blob = base64ToBlob(result.pdf);
-          const url = URL.createObjectURL(blob);
-          const a = document.createElement('a');
-          a.href = url;
-          a.download = `${detectedTemplate}_filled.pdf`;
-          document.body.appendChild(a);
-          a.click();
-          document.body.removeChild(a);
-          URL.revokeObjectURL(url);
-        } else {
-          alert(`PDF generation failed: ${result.error}`);
-        }
-      } finally {
-        setIsGenerating(false);
-      }
-      return;
-    }
-
     if (formFile.type === 'application/pdf' && previewUrl) {
       const a = document.createElement('a');
       a.href = previewUrl;
@@ -187,25 +106,15 @@ export const ReviewPanel: React.FC<ReviewPanelProps> = ({
     }
   };
 
-  // Regenerate LaTeX preview
-  const handleRegenerateLatex = () => {
-    setLatexPdfBase64(null);
-    generateLatexPreview();
-  };
-
   // Sort: Unverified/Issues first, then verified
   const displayedFields = fields.map((f, i) => ({ ...f, originalIndex: i }))
     .sort((a, b) => {
-      // Priority 1: Attention needed
       const aNeedsAttn = a.validation?.status !== 'VALID';
       const bNeedsAttn = b.validation?.status !== 'VALID';
       if (aNeedsAttn && !bNeedsAttn) return -1;
       if (!aNeedsAttn && bNeedsAttn) return 1;
-      
-      // Priority 2: Unverified
       if (!a.isVerified && b.isVerified) return -1;
       if (a.isVerified && !b.isVerified) return 1;
-      
       return a.originalIndex - b.originalIndex;
     })
     .filter(f => filterMode === 'ALL' || (f.validation?.status !== 'VALID' && !f.isVerified));
@@ -218,106 +127,61 @@ export const ReviewPanel: React.FC<ReviewPanelProps> = ({
           <h2 className="text-2xl font-bold text-slate-900">Review & Verify</h2>
           <p className="text-slate-500 text-sm mt-1">{summary}</p>
         </div>
-        
+
         <div className="flex items-center gap-4 w-full md:w-auto">
-          {/* Verification Progress */}
           <div className="hidden md:flex flex-col items-end mr-2">
             <span className="text-xs font-semibold text-slate-600 mb-1">
               {verifiedCount} / {totalCount} Verified
             </span>
             <div className="w-32 h-2 bg-slate-200 rounded-full overflow-hidden">
-              <div 
+              <div
                 className="h-full bg-emerald-500 transition-all duration-500 ease-out"
                 style={{ width: `${progressPercent}%` }}
               />
             </div>
           </div>
 
-          <button 
+          <button
             onClick={onReset}
             className="flex items-center px-4 py-2 text-sm font-medium text-slate-700 bg-white border border-slate-300 rounded-lg hover:bg-slate-50 transition-colors"
           >
             <RefreshCw className="w-4 h-4 mr-2" />
             Start Over
           </button>
-          
+
           <button
             onClick={handleDownload}
-            disabled={isGenerating}
-            className={`flex items-center px-4 py-2 text-sm font-medium text-white rounded-lg transition-colors shadow-sm ${isGenerating ? 'bg-indigo-400 cursor-wait' : 'bg-indigo-600 hover:bg-indigo-700'}`}
+            className="flex items-center px-4 py-2 text-sm font-medium text-white rounded-lg transition-colors shadow-sm bg-indigo-600 hover:bg-indigo-700"
           >
-            {isGenerating ? (
-              <Loader2 className="w-4 h-4 mr-2 animate-spin" />
-            ) : (
-              <Download className="w-4 h-4 mr-2" />
-            )}
+            <Download className="w-4 h-4 mr-2" />
             Download PDF
           </button>
         </div>
       </div>
 
       <div className="grid grid-cols-1 lg:grid-cols-2 gap-8 flex-1 min-h-0">
-        {/* Left Column: Visual Reference */}
+        {/* Left Column: PDF Preview */}
         <div className="bg-slate-900 rounded-xl overflow-hidden shadow-lg flex flex-col">
           <div className="p-3 bg-slate-800 border-b border-slate-700 flex justify-between items-center">
              <div className="flex items-center space-x-2">
                <span className="text-xs font-medium text-slate-300 uppercase tracking-wider">Preview</span>
-               {pdfMode === 'latex' && (
+               {isFillablePdf ? (
                  <span className="flex items-center text-[10px] bg-emerald-500/20 text-emerald-300 px-1.5 py-0.5 rounded border border-emerald-500/30">
-                   <FileCode className="w-3 h-3 mr-1" />
-                   LaTeX Template Mode
+                   <FileCheck className="w-3 h-3 mr-1" />
+                   Fillable PDF
                  </span>
-               )}
-               {pdfMode === 'overlay' && (
-                 <span className="flex items-center text-[10px] bg-indigo-500/20 text-indigo-300 px-1.5 py-0.5 rounded border border-indigo-500/30">
+               ) : (
+                 <span className="flex items-center text-[10px] bg-amber-500/20 text-amber-300 px-1.5 py-0.5 rounded border border-amber-500/30">
                    <PenTool className="w-3 h-3 mr-1" />
-                   Visual Overlay Mode
-                 </span>
-               )}
-               {pdfMode === 'fillable' && (
-                 <span className="flex items-center text-[10px] bg-blue-500/20 text-blue-300 px-1.5 py-0.5 rounded border border-blue-500/30">
-                   <FileText className="w-3 h-3 mr-1" />
-                   Fillable PDF Mode
+                   Visual Overlay
                  </span>
                )}
              </div>
-             <div className="flex items-center space-x-2">
-               {/* Mode Switcher */}
-               {latexAvailable && detectedTemplate && (
-                 <button
-                   onClick={() => {
-                     const newMode = pdfMode === 'latex' ? 'overlay' : 'latex';
-                     setPdfMode(newMode);
-                     if (newMode === 'latex') {
-                       setLatexPdfBase64(null);
-                     }
-                   }}
-                   className="text-[10px] bg-slate-700 hover:bg-slate-600 text-slate-300 px-2 py-1 rounded transition-colors"
-                 >
-                   {pdfMode === 'latex' ? 'Use Overlay' : 'Use LaTeX'}
-                 </button>
-               )}
-               {pdfMode === 'latex' && (
-                 <button
-                   onClick={handleRegenerateLatex}
-                   disabled={isGenerating}
-                   className="text-[10px] bg-emerald-700 hover:bg-emerald-600 text-emerald-100 px-2 py-1 rounded transition-colors disabled:opacity-50"
-                 >
-                   {isGenerating ? 'Generating...' : 'Regenerate'}
-                 </button>
-               )}
-               <span className="text-xs text-slate-400">{formFile.file.name}</span>
-             </div>
+             <span className="text-xs text-slate-400">{formFile.file.name}</span>
           </div>
           <div className="flex-1 bg-slate-900 relative">
-             {isGenerating && pdfMode === 'latex' ? (
-                <div className="flex flex-col items-center justify-center h-full text-emerald-400">
-                  <Loader2 className="w-16 h-16 mb-4 animate-spin" />
-                  <p className="font-medium">Generating LaTeX PDF...</p>
-                  <p className="text-sm text-slate-500 mt-1">Compiling template with your data</p>
-                </div>
-             ) : previewUrl ? (
-                formFile.type === 'application/pdf' || pdfMode === 'latex' ? (
+             {previewUrl ? (
+                formFile.type === 'application/pdf' ? (
                   <iframe
                     src={previewUrl}
                     title="Form PDF Preview"
@@ -341,21 +205,20 @@ export const ReviewPanel: React.FC<ReviewPanelProps> = ({
           </div>
         </div>
 
-        {/* Right Column: Verification List */}
+        {/* Right Column: Field List */}
         <div className="bg-white rounded-xl shadow-sm border border-slate-200 flex flex-col overflow-hidden">
-          {/* List Header */}
           <div className="p-4 border-b border-slate-100 bg-slate-50/50">
             <div className="flex justify-between items-center mb-4">
               <h3 className="font-semibold text-slate-800">Field Verification</h3>
               <div className="flex space-x-2 text-xs">
-                <button 
+                <button
                   onClick={() => setFilterMode('ALL')}
                   className={`px-3 py-1 rounded-full border transition-colors ${filterMode === 'ALL' ? 'bg-slate-800 text-white border-slate-800' : 'bg-white text-slate-600 border-slate-200 hover:bg-slate-50'}`}
                 >
                   All Fields ({totalCount})
                 </button>
                 {fieldsRequiresAttention.length > 0 && (
-                   <button 
+                   <button
                     onClick={() => setFilterMode('ATTENTION')}
                     className={`px-3 py-1 rounded-full border transition-colors flex items-center ${filterMode === 'ATTENTION' ? 'bg-amber-100 text-amber-800 border-amber-200' : 'bg-white text-amber-600 border-slate-200 hover:bg-amber-50'}`}
                   >
@@ -365,37 +228,33 @@ export const ReviewPanel: React.FC<ReviewPanelProps> = ({
                 )}
               </div>
             </div>
-            
-             {pdfMode === 'latex' && detectedTemplate && (
-                <div className="flex items-start space-x-2 bg-emerald-50 text-emerald-800 p-3 rounded-md border border-emerald-100 text-xs">
-                   <FileCode className="w-4 h-4 flex-shrink-0 text-emerald-600 mt-0.5" />
-                   <div>
-                     <p className="font-semibold">LaTeX Template Mode: {detectedTemplate}</p>
-                     <p>Using precise LaTeX template. All fields will be positioned correctly in the generated PDF.</p>
-                   </div>
-                </div>
-             )}
-             {pdfMode === 'overlay' && (
-                <div className="flex items-start space-x-2 bg-indigo-50 text-indigo-800 p-3 rounded-md border border-indigo-100 text-xs">
-                   <PenTool className="w-4 h-4 flex-shrink-0 text-indigo-600 mt-0.5" />
-                   <div>
-                     <p className="font-semibold">Visual Overlay Mode</p>
-                     <p>AI is visually estimating field positions. Please verify text alignment in the preview.</p>
-                     {latexAvailable && detectedTemplate && (
-                       <p className="mt-1 text-emerald-700 font-medium">Tip: LaTeX template available! Click "Use LaTeX" for better results.</p>
-                     )}
-                   </div>
-                </div>
-             )}
+
+            {isFillablePdf ? (
+              <div className="flex items-start space-x-2 bg-emerald-50 text-emerald-800 p-3 rounded-md border border-emerald-100 text-xs">
+                 <FileCheck className="w-4 h-4 flex-shrink-0 text-emerald-600 mt-0.5" />
+                 <div>
+                   <p className="font-semibold">Fillable PDF Mode</p>
+                   <p>Fields are filled directly into the original PDF form.</p>
+                 </div>
+              </div>
+            ) : (
+              <div className="flex items-start space-x-2 bg-amber-50 text-amber-800 p-3 rounded-md border border-amber-100 text-xs">
+                 <PenTool className="w-4 h-4 flex-shrink-0 text-amber-600 mt-0.5" />
+                 <div>
+                   <p className="font-semibold">Visual Overlay Mode</p>
+                   <p>This PDF has no fillable fields. Text is overlaid at estimated positions.</p>
+                 </div>
+              </div>
+            )}
           </div>
-          
+
           {/* Fields List */}
           <div className="flex-1 overflow-y-auto p-4 space-y-3 bg-slate-50/30">
             {displayedFields.map((field) => {
               const idx = field.originalIndex;
               const status = field.validation?.status || 'VALID';
               const isVerified = field.isVerified;
-              
+
               let statusBorder = isVerified ? "border-emerald-200" : "border-slate-200";
               let statusBg = isVerified ? "bg-emerald-50/30" : "bg-white";
 
@@ -410,27 +269,16 @@ export const ReviewPanel: React.FC<ReviewPanelProps> = ({
               }
 
               return (
-                <div 
-                  key={idx} 
-                  className={`
-                    relative group rounded-lg border transition-all duration-200 p-3 shadow-sm
-                    ${activeField === idx ? 'ring-1 ring-indigo-500 border-indigo-500 shadow-md z-10' : statusBorder}
-                    ${statusBg}
-                  `}
+                <div
+                  key={idx}
+                  className={`relative group rounded-lg border transition-all duration-200 p-3 shadow-sm ${activeField === idx ? 'ring-1 ring-indigo-500 border-indigo-500 shadow-md z-10' : statusBorder} ${statusBg}`}
                   onFocus={() => setActiveField(idx)}
                   onBlur={() => setActiveField(null)}
                 >
                   <div className="flex items-start gap-3">
-                    {/* Verification Checkbox */}
                     <button
                       onClick={() => toggleVerify(idx)}
-                      className={`
-                        mt-1 flex-shrink-0 w-5 h-5 rounded border flex items-center justify-center transition-colors
-                        ${isVerified 
-                          ? 'bg-emerald-500 border-emerald-500 text-white' 
-                          : 'bg-white border-slate-300 text-transparent hover:border-emerald-400'
-                        }
-                      `}
+                      className={`mt-1 flex-shrink-0 w-5 h-5 rounded border flex items-center justify-center transition-colors ${isVerified ? 'bg-emerald-500 border-emerald-500 text-white' : 'bg-white border-slate-300 text-transparent hover:border-emerald-400'}`}
                       title={isVerified ? "Mark as unverified" : "Mark as verified"}
                     >
                       <Check className="w-3.5 h-3.5" strokeWidth={3} />
@@ -441,8 +289,7 @@ export const ReviewPanel: React.FC<ReviewPanelProps> = ({
                         <label className={`text-xs font-semibold uppercase tracking-wider truncate ${isVerified ? 'text-emerald-700' : 'text-slate-600'}`}>
                           {field.label || field.key || "Unknown Field"}
                         </label>
-                        
-                        {/* Status Badge */}
+
                         {!isVerified && status !== 'VALID' && (
                           <span className={`flex items-center text-[10px] font-bold px-1.5 py-0.5 rounded ${status === 'INVALID' ? 'bg-red-100 text-red-700' : 'bg-amber-100 text-amber-700'}`}>
                              {status === 'INVALID' ? <XCircle className="w-3 h-3 mr-1"/> : <AlertTriangle className="w-3 h-3 mr-1"/>}
@@ -462,13 +309,7 @@ export const ReviewPanel: React.FC<ReviewPanelProps> = ({
                           type="text"
                           value={field.value}
                           onChange={(e) => handleUpdate(idx, e.target.value)}
-                          className={`
-                            block w-full rounded-md px-2.5 py-1.5 text-sm font-medium transition-colors border
-                            ${isVerified 
-                              ? 'border-emerald-200 text-emerald-900 bg-emerald-50/50' 
-                              : 'border-slate-300 text-slate-900 focus:border-indigo-500 focus:ring-1 focus:ring-indigo-500'
-                            }
-                          `}
+                          className={`block w-full rounded-md px-2.5 py-1.5 text-sm font-medium transition-colors border ${isVerified ? 'border-emerald-200 text-emerald-900 bg-emerald-50/50' : 'border-slate-300 text-slate-900 focus:border-indigo-500 focus:ring-1 focus:ring-indigo-500'}`}
                           placeholder="Empty"
                         />
                         {!isVerified && (
@@ -478,16 +319,14 @@ export const ReviewPanel: React.FC<ReviewPanelProps> = ({
                         )}
                       </div>
 
-                      {/* Error/Warning Message */}
                       {(!isVerified && status !== 'VALID' && field.validation?.message) && (
                         <p className={`mt-1.5 text-xs ${status === 'INVALID' ? 'text-red-600' : 'text-amber-600'}`}>
                           {field.validation.message}
                         </p>
                       )}
 
-                      {/* Auto-Fix Button */}
                       {(!isVerified && field.validation?.suggestion && status !== 'VALID') && (
-                        <button 
+                        <button
                           onClick={() => applySuggestion(idx)}
                           className="mt-2 flex items-center text-xs font-bold text-indigo-600 hover:text-indigo-800 bg-indigo-50 hover:bg-indigo-100 px-2 py-1 rounded transition-colors w-full sm:w-auto"
                         >
@@ -495,19 +334,25 @@ export const ReviewPanel: React.FC<ReviewPanelProps> = ({
                           Accept Fix: "{field.validation.suggestion}"
                         </button>
                       )}
-                      
-                      {/* Source Context Snippet */}
+
                       {!isVerified && field.sourceContext && (
                         <div className="mt-2 p-2 bg-slate-100 rounded text-[11px] text-slate-500 border border-slate-200">
                           <span className="font-semibold text-slate-700">Source:</span> "{field.sourceContext}"
                         </div>
                       )}
+
+                      {/* Show PDF field key if available */}
+                      {field.key && (
+                        <div className="mt-1 text-[10px] text-slate-400">
+                          PDF Field: {field.key}
+                        </div>
+                      )}
                     </div>
                   </div>
                 </div>
               );
             })}
-            
+
             {displayedFields.length === 0 && (
                <div className="text-center py-10 text-slate-400">
                  <CheckCircle2 className="w-12 h-12 mx-auto mb-2 opacity-20" />
@@ -515,8 +360,8 @@ export const ReviewPanel: React.FC<ReviewPanelProps> = ({
                </div>
             )}
           </div>
-          
-          {/* Verification Footer */}
+
+          {/* Footer */}
           <div className="p-4 border-t border-slate-200 bg-white">
              <div className="flex justify-between items-center text-xs font-medium text-slate-500">
                 <span>{verifiedCount} of {totalCount} fields verified</span>
@@ -530,7 +375,6 @@ export const ReviewPanel: React.FC<ReviewPanelProps> = ({
                   </span>
                 )}
              </div>
-             {/* Mobile Progress Bar */}
              <div className="md:hidden mt-2 w-full h-1.5 bg-slate-100 rounded-full overflow-hidden">
                 <div className="h-full bg-emerald-500 transition-all" style={{ width: `${progressPercent}%` }} />
              </div>
diff --git a/services/geminiService.ts b/services/geminiService.ts
index 734f445..9c22472 100644
--- a/services/geminiService.ts
+++ b/services/geminiService.ts
@@ -2,7 +2,6 @@ import { GoogleGenAI, Type, Schema } from "@google/genai";
 import { FileData, FormResponse } from "../types";
 import { PdfFieldInfo } from "./pdfService";
 import { getApiKey } from "./apiKeyService";
-import { detectTemplate, getExpectedFields } from "./latexService";
 
 const getAI = () => {
   const apiKey = getApiKey();
@@ -76,98 +75,12 @@ const responseSchema: Schema = {
   required: ["fields", "summary"]
 };
 
-// G2210-11 specific field definitions for better extraction
-const G2210_FIELDS = `
-REQUIRED FIELDS FOR G2210-11 (Ärztlicher Befundbericht):
-Extract ALL of the following fields from the source document:
-
-PATIENT DATA:
-- Versicherungsnummer (e.g., "12 345678 A 123")
-- ABT.-Nr. (Aktenzeichen/Abteilungsnummer)
-- Name, Vorname (Full name: "Nachname, Vorname")
-- Geburtsdatum (format: DD.MM.YYYY)
-- Geschlecht (männlich/weiblich/divers)
-- Straße, Hausnummer
-- PLZ
-- Ort
-- Telefon
-- Krankenkasse
-
-EMPLOYMENT:
-- Derzeitige Tätigkeit (Beruf)
-- Arbeitgeber
-- Arbeitsunfähig seit (date: DD.MM.YYYY)
-- Letzte Arbeitsaufnahme
-
-DIAGNOSES (up to 6, with ICD-10 codes):
-- Diagnose 1 + Diagnose 1 ICD
-- Diagnose 2 + Diagnose 2 ICD
-- Diagnose 3 + Diagnose 3 ICD
-- Diagnose 4 + Diagnose 4 ICD
-- Diagnose 5 + Diagnose 5 ICD
-- Diagnose 6 + Diagnose 6 ICD
-
-ANAMNESIS:
-- Anamnese/Beschwerden (patient symptoms and history)
-- Krankheitsverlauf (disease progression, previous treatments)
-- Körperlicher Befund (physical examination findings)
-
-FUNCTIONAL LIMITATIONS (mark as "keine", "gering", or "erheblich"):
-- Mobilität keine/gering/erheblich
-- Selbstversorgung keine/gering/erheblich
-- Haushaltsführung keine/gering/erheblich
-- Erwerbstätigkeit keine/gering/erheblich
-- Kommunikation keine/gering/erheblich
-- Psychische Belastbarkeit keine/gering/erheblich
-- Beeinträchtigungen Erläuterung
-
-MEDICATION (up to 5):
-- Medikament 1 + Medikament 1 Dosis + Medikament 1 Seit
-- Medikament 2 + Medikament 2 Dosis + Medikament 2 Seit
-- Medikament 3 + Medikament 3 Dosis + Medikament 3 Seit
-- Medikament 4 + Medikament 4 Dosis + Medikament 4 Seit
-- Medikament 5 + Medikament 5 Dosis + Medikament 5 Seit
-- Physikalische Therapie
-
-PREVIOUS REHABILITATION:
-- Reha 1 Zeitraum + Reha 1 Einrichtung + Reha 1 Erfolg
-- Reha 2 Zeitraum + Reha 2 Einrichtung + Reha 2 Erfolg
-
-ASSESSMENT:
-- Leistungsvermögen (vollschichtig/3-6 Stunden/unter 3 Stunden)
-- Rehabilitationsbedürftigkeit (reasoning for rehab need)
-- Rehabilitationsziel
-- Rehabilitationsform (stationär/ambulant/ganztägig ambulant)
-- Reha Einrichtung Empfehlung
-
-TRAVEL:
-- Reisefähig (ja/nein)
-- Reisefähig Begründung (if no)
-- Begleitperson (ja/nein)
-
-ADDITIONAL:
-- Ergänzende Angaben
-
-DOCTOR INFORMATION:
-- Arzt Name
-- Facharztbezeichnung
-- Praxis Anschrift
-- Praxis Telefon
-- BSNR
-- LANR
-- Unterschrift Datum
-`;
-
 export const processDocuments = async (
   blankForm: FileData,
   sourceDocument: FileData,
   pdfFields: PdfFieldInfo[] = []
 ): Promise<FormResponse> => {
 
-  // Detect if we have a known template
-  const detectedTemplate = detectTemplate(blankForm.file?.name || '');
-  const expectedFields = detectedTemplate ? getExpectedFields(detectedTemplate) : [];
-
   const formPart = {
     inlineData: {
       data: blankForm.base64,
@@ -183,73 +96,53 @@ export const processDocuments = async (
   };
 
   let systemPrompt = `
-    ROLE: Intelligent Document Processing AI (Verification Expert).
-    TASK: Extract data from the SOURCE DOCUMENT and map it to the BLANK TARGET FORM.
+    ROLE: Intelligent Document Processing AI.
+    TASK: Extract data from the SOURCE DOCUMENT and fill the BLANK TARGET FORM.
 
-    CRITICAL INSTRUCTION: You must verify every extraction. If a value is ambiguous, plausibility is low, or you are guessing, set validation.status to 'WARNING' and explain why in validation.message.
+    CRITICAL: You must verify every extraction. If uncertain, set validation.status to 'WARNING'.
   `;
 
-  // Add template-specific instructions
-  if (detectedTemplate === 'G2210-11') {
-    systemPrompt += `
-      DETECTED FORM: G2210-11 (Ärztlicher Befundbericht der DRV Westfalen)
-
-      ${G2210_FIELDS}
-
-      IMPORTANT INSTRUCTIONS:
-      1. Extract ALL fields listed above, even if they are empty in the source.
-      2. Use the EXACT label names as listed above for each field.
-      3. For multi-value fields like diagnoses and medications, create separate field entries.
-      4. For checkbox fields (Mobilität, Selbstversorgung, etc.), return separate fields for each option.
-         Example: If mobility is "erheblich", return:
-         - "Mobilität keine" with value ""
-         - "Mobilität gering" with value ""
-         - "Mobilität erheblich" with value "true"
-      5. ICD-10 codes must be in standard format (e.g., "M54.5", "F32.1")
-      6. Dates must be in DD.MM.YYYY format.
-      7. For Leistungsvermögen, return separate checkbox fields:
-         - "Leistungsvermögen vollschichtig" (true/false)
-         - "Leistungsvermögen 3-6 Stunden" (true/false)
-         - "Leistungsvermögen unter 3 Stunden" (true/false)
-    `;
-  } else if (pdfFields.length > 0) {
-    const fieldList = pdfFields.map(f => `"${f.name}" (${f.type})`).join(", ");
+  // PRIORITY 1: If PDF has fillable fields, USE THEM - this is the simplest and best approach
+  if (pdfFields.length > 0) {
+    const fieldList = pdfFields.map(f => `"${f.name}" (${f.type})`).join("\n- ");
     systemPrompt += `
       MODE: FILLABLE PDF (AcroForm).
-      The target form has specific embedded fields.
-      Map extracted data to these exact field IDs: [${fieldList}].
-      Return the 'key' property matching the field ID.
-    `;
-  } else if (expectedFields.length > 0) {
-    systemPrompt += `
-      MODE: TEMPLATE-BASED EXTRACTION.
-      Extract the following specific fields: [${expectedFields.join(", ")}].
-      Use these exact label names in your response.
+
+      The target PDF has these EXACT fillable fields:
+      - ${fieldList}
+
+      CRITICAL INSTRUCTIONS:
+      1. For EACH field listed above, extract the corresponding value from the SOURCE DOCUMENT.
+      2. Return the 'key' property with the EXACT field name from the list above.
+      3. The 'label' should be a human-readable description.
+      4. For checkboxes: use value "true" to check, "false" to uncheck.
+      5. For text fields: use the extracted text value.
+
+      You MUST return a field entry for each PDF field listed above.
+      The 'key' MUST match exactly one of the field names I provided.
     `;
   } else {
+    // FALLBACK: Visual overlay mode for non-fillable PDFs
     systemPrompt += `
-      MODE: VISUAL FILLING (Flat/XFA/Scan).
-      The target form DOES NOT have accessible digital fields.
-      You must VISUALLY locate where the text should be written.
+      MODE: VISUAL FILLING (Flat PDF/Scan).
+      The target form does NOT have digital form fields.
 
       For every field you identify on the TARGET FORM:
       1. Extract the corresponding value from the SOURCE DOCUMENT.
-      2. Estimate the VISUAL COORDINATES [pageIndex, x, y] where the text should start.
-         - 'x' and 'y' are on a scale of 0 to 1000.
-         - (0,0) is the top-left corner of the page.
+      2. Estimate VISUAL COORDINATES [pageIndex, x, y] where the text should be written.
+         - x and y are on a scale of 0 to 1000.
+         - (0,0) is the top-left corner.
          - (1000,1000) is the bottom-right corner.
-         - Align text slightly above lines or inside boxes.
 
-      For checkboxes: If true/yes, the value should be "X" placed inside the box.
+      For checkboxes: value should be "X" if checked.
     `;
   }
 
   systemPrompt += `
     VALIDATION RULES:
-    1. Dates: Ensure format matches the form (e.g. DD.MM.YYYY).
-    2. Checkboxes: Only mark if explicitly supported by source.
-    3. Missing Data: If a field is not found in source, leave 'value' empty and set status 'VALID'. Do not hallucinate.
-    4. Source Context: Always populate 'sourceContext' with the exact text snippet from the source document that justifies your extraction.
+    1. Dates: German format DD.MM.YYYY
+    2. Missing Data: Leave 'value' empty, don't hallucinate.
+    3. Source Context: Include the exact text snippet from source that justifies the extraction.
   `;
 
   try {