feat: replace html2canvas with native high-quality browser printing

App.tsx

@@ -120,18 +120,17 @@ const App: React.FC = () => {
   }, [handleReset]);
 
   const handleExport = (action: 'preview' | 'download') => {
-    if (reportsData && reportsData.length > 0) {
-      const fileName = `Relatorio_SteelCheck_${reportsData[0].identification.certificateNumber || 'analise'}`;
-      exportAsPdf('printable-report-container', fileName, action);
-    }
+    // Both actions now use native high-quality browser printing/PDF saving
+    window.print();
   };
 
   return (
-    <div className="min-h-screen">
-      {isLoading && <Loader />}
-      <Header onReset={handleReset} onClearKey={handleClearKey} hasKey={hasKey} provider={provider} />
+    <div className="min-h-screen print:bg-white print:m-0 print:p-0">
+      <div className="print:hidden">
+        {isLoading && <Loader />}
+        <Header onReset={handleReset} onClearKey={handleClearKey} hasKey={hasKey} provider={provider} />
 
-      <main className="container mx-auto p-4 sm:p-6 md:p-8 max-w-7xl">
+        <main className="container mx-auto p-4 sm:p-6 md:p-8 max-w-7xl">
         {!hasKey ? (
           <ApiKeySetup onKeySave={handleKeySave} />
         ) : !reportsData ? (
@@ -199,9 +198,10 @@ const App: React.FC = () => {
           </div>
         )}
       </main>
+      </div>
 
       {reportsData && (
-        <div className="absolute -left-[9999px] top-0 opacity-0" aria-hidden="true">
+        <div className="hidden print:block print:w-[210mm] print:mx-auto" aria-hidden="true">
           <PrintableReport reports={reportsData} />
         </div>
       )}

components/PrintableReport.tsx

@@ -15,7 +15,7 @@ export const PrintableReport: React.FC<PrintableReportProps> = ({ reports }) =>
       style={{ width: '210mm', background: 'white' }}
     >
       {reports.map((report, idx) => (
-        <div key={idx} className="report-page pdf-export bg-white" style={{ minHeight: '297mm' }}>
+        <div key={idx} className="report-page bg-white" style={{ minHeight: '297mm' }}>
           <ReportDisplay report={report} />
         </div>
       ))}

index.css

@@ -30,21 +30,38 @@
   animation: fade-in 0.5s ease-out forwards;
 }
 
-/* Force black text for PDF generation */
-.pdf-export .text-slate-400,
-.pdf-export .text-slate-500,
-.pdf-export .text-slate-600,
-.pdf-export .text-slate-700,
-.pdf-export .text-slate-800,
-.pdf-export .text-slate-900,
-.pdf-export .text-slate-300,
-.pdf-export .text-slate-200 {
-  color: #000000 !important;
-}
+/* High-quality native browser printing */
+@media print {
+  * {
+    -webkit-print-color-adjust: exact !important;
+    print-color-adjust: exact !important;
+  }
+  
+  @page {
+    margin: 0;
+    size: A4;
+  }
 
-/* Also ensure borders are clearly visible */
-.pdf-export .border-slate-100,
-.pdf-export .border-slate-200,
-.pdf-export .border-slate-50 {
-  border-color: #cbd5e1 !important; /* slate-300 */
+  body {
+    background: white !important;
+  }
+
+  /* Force black text for PDF generation */
+  .report-page .text-slate-400,
+  .report-page .text-slate-500,
+  .report-page .text-slate-600,
+  .report-page .text-slate-700,
+  .report-page .text-slate-800,
+  .report-page .text-slate-900,
+  .report-page .text-slate-300,
+  .report-page .text-slate-200 {
+    color: #000000 !important;
+  }
+
+  /* Also ensure borders are clearly visible */
+  .report-page .border-slate-100,
+  .report-page .border-slate-200,
+  .report-page .border-slate-50 {
+    border-color: #cbd5e1 !important; /* slate-300 */
+  }
 }