diff --git a/Public/CustomCSSManager/Infrastructure/Services/CustomCSSInjector.php b/Public/CustomCSSManager/Infrastructure/Services/CustomCSSInjector.php
index 288935df..5ceb8fe5 100644
--- a/Public/CustomCSSManager/Infrastructure/Services/CustomCSSInjector.php
+++ b/Public/CustomCSSManager/Infrastructure/Services/CustomCSSInjector.php
@@ -35,14 +35,21 @@ final class CustomCSSInjector
      */
     public function injectCriticalCSS(): void
     {
+        error_log('ROI CustomCSS: injectCriticalCSS CALLED');
+
         $pageType = $this->getCurrentPageType();
+        error_log('ROI CustomCSS: pageType=' . $pageType);
+
         $snippets = $this->getCriticalUseCase->execute($pageType);
+        error_log('ROI CustomCSS: critical snippets count=' . count($snippets));
 
         if (empty($snippets)) {
+            error_log('ROI CustomCSS: NO critical snippets, returning');
             return;
         }
 
         $css = $this->combineSnippets($snippets);
+        error_log('ROI CustomCSS: critical CSS length=' . strlen($css));
 
         if (!empty($css)) {
             printf(
@@ -57,14 +64,21 @@ final class CustomCSSInjector
      */
     public function injectDeferredCSS(): void
     {
+        error_log('ROI CustomCSS: injectDeferredCSS CALLED');
+
         $pageType = $this->getCurrentPageType();
+        error_log('ROI CustomCSS: deferred pageType=' . $pageType);
+
         $snippets = $this->getDeferredUseCase->execute($pageType);
+        error_log('ROI CustomCSS: deferred snippets count=' . count($snippets));
 
         if (empty($snippets)) {
+            error_log('ROI CustomCSS: NO deferred snippets, returning');
             return;
         }
 
         $css = $this->combineSnippets($snippets);
+        error_log('ROI CustomCSS: deferred CSS length=' . strlen($css));
 
         if (!empty($css)) {
             printf(