diff --git a/src/uncloseai-modal-pico.css b/src/uncloseai-modal-pico.css
index b2e1c89..1ac150d 100644
--- a/src/uncloseai-modal-pico.css
+++ b/src/uncloseai-modal-pico.css
@@ -291,6 +291,12 @@ dialog#translate-modal::backdrop {
   background-color: transparent !important;
 }
 
+/* Override PicoCSS modal overlay variables for translate modal */
+dialog#translate-modal {
+  --pico-modal-overlay-backdrop-filter: none !important;
+  --pico-modal-overlay-background-color: transparent !important;
+}
+
 /* Translate modal header */
 .translate-modal-header {
   background: linear-gradient(45deg, #4CAF50 0%, #45a049 100%);
@@ -554,6 +560,12 @@ dialog#tts-modal::backdrop {
   background-color: transparent !important;
 }
 
+/* Override PicoCSS modal overlay variables for TTS modal */
+dialog#tts-modal {
+  --pico-modal-overlay-backdrop-filter: none !important;
+  --pico-modal-overlay-background-color: transparent !important;
+}
+
 /* TTS modal header */
 .tts-modal-header {
   background: linear-gradient(45deg, #667eea 0%, #764ba2 100%);