diff --git a/app/Services/ImportProcessor.php b/app/Services/ImportProcessor.php
index 0194b02..11be0cb 100644
--- a/app/Services/ImportProcessor.php
+++ b/app/Services/ImportProcessor.php
@@ -28,12 +28,14 @@
 use Illuminate\Database\QueryException;
 use Illuminate\Support\Carbon;
 use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Log;
 use Illuminate\Support\Facades\Storage;
 
 class ImportProcessor
 {
     /**
      * Track contracts that already existed and were matched during history imports.
+     *
      * @var array<int,bool>
      */
     private array $historyFoundContractIds = [];
@@ -220,6 +222,11 @@ public function process(Import $import, ?Authenticatable $user = null): array
                     try {
                         DB::statement('SAVEPOINT import_row_'.$rowNum);
                     } catch (\Throwable $se) {
+                        Log::error('Import savepoint_failed', [
+                            'import_id' => $import->id,
+                            'row_number' => $rowNum,
+                            'exception' => $this->exceptionContext($se),
+                        ]);
                         ImportEvent::create([
                             'import_id' => $import->id,
                             'user_id' => $user?->getAuthIdentifier(),
@@ -1096,6 +1103,11 @@ public function process(Import $import, ?Authenticatable $user = null): array
                         }
                     }
                     if ($rollbackFailed) {
+                        Log::error('Import row_rollback_failed', [
+                            'import_id' => $import->id,
+                            'row_number' => $rowNum,
+                            'exception' => $this->exceptionContext($rollbackError ?? $e),
+                        ]);
                         // Abort the whole import if we cannot rollback to the row savepoint (transaction is poisoned)
                         ImportEvent::create([
                             'import_id' => $import->id,
@@ -1137,6 +1149,12 @@ public function process(Import $import, ?Authenticatable $user = null): array
                     }
                     $failedRows[] = $rowNum;
                     $invalid++;
+                    Log::error('Import row_exception', [
+                        'import_id' => $import->id,
+                        'row_number' => $rowNum,
+                        'exception' => $this->exceptionContext($e),
+                        'raw_preview' => isset($rawAssoc) ? $this->buildRawDataPreview($rawAssoc) : [],
+                    ]);
                     try {
                         ImportEvent::create([
                             'import_id' => $import->id,
@@ -1154,6 +1172,12 @@ public function process(Import $import, ?Authenticatable $user = null): array
                             ],
                         ]);
                     } catch (\Throwable $evtErr) {
+                        Log::error('Import row_exception_event_failed', [
+                            'import_id' => $import->id,
+                            'row_number' => $rowNum,
+                            'exception' => $this->exceptionContext($evtErr),
+                            'original_exception' => $this->exceptionContext($e),
+                        ]);
                         // Swallow secondary failure to ensure loop continues
                     }
 
@@ -1226,6 +1250,10 @@ public function process(Import $import, ?Authenticatable $user = null): array
             // Mark failed and log after rollback (so no partial writes persist)
             $import->refresh();
             $import->update(['status' => 'failed', 'failed_at' => now()]);
+            Log::error('Import processing_failed', [
+                'import_id' => $import->id,
+                'exception' => $this->exceptionContext($e),
+            ]);
             ImportEvent::create([
                 'import_id' => $import->id,
                 'user_id' => $user?->getAuthIdentifier(),
@@ -2047,7 +2075,7 @@ private function upsertActivity(Import $import, array $mapped, $mappings, ?array
         }
 
         $data = array_filter($applyInsert, fn ($v) => ! is_null($v));
-        $activityModel = new Activity();
+        $activityModel = new Activity;
         $activityModel->forceFill($data);
         if (array_key_exists('created_at', $data)) {
             // Preserve provided timestamps by disabling automatic timestamps for this save
@@ -2271,6 +2299,7 @@ private function upsertContractChain(Import $import, array $mapped, $mappings, b
         if ($existing) {
             if ($historyImport) {
                 $this->historyFoundContractIds[$existing->id] = true;
+
                 return ['action' => 'skipped_history', 'contract' => $existing, 'message' => 'Existing contract left unchanged (history import)'];
             }
             // 1) Prepare contract field changes (non-null)
@@ -3090,8 +3119,8 @@ private function upsertAddress(int $personId, array $addrData, $mappings): array
         if (mb_strlen($addressLine) < 3) {
             return ['action' => 'skipped', 'message' => 'Invalid address value'];
         }
-        // Allow only basic address characters to avoid noisy special chars
-        if (! preg_match('/^[A-Za-z0-9\\s\\.,\\-\\/\\#\\\'"\\(\\)&]+$/', $addressLine)) {
+        // Allow letters (incl. diacritics), numbers, and common separators
+        if (! preg_match('/^[\\p{L}0-9\\s\\.,\\-\\/\\#\\\'"\\(\\)&]+$/u', $addressLine)) {
             return ['action' => 'skipped', 'message' => 'Invalid address value'];
         }
         // Default country SLO if not provided
@@ -3343,3 +3372,6 @@ protected function attemptContractReactivation(Contract $contract, ?Authenticata
         }
     }
 }
+
+
+