diff --git a/src/styles.css b/src/styles.css
index c8d6a9f..56fe283 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -1970,6 +1970,11 @@ select option {
     box-shadow: 0 0 0 2px rgba(145, 70, 255, 0.55);
 }
 
+.btn-secondary:disabled {
+    opacity: 0.45;
+    cursor: not-allowed;
+}
+
 /* ============================================
    COMPACT / UTILITY BUTTONS
    ============================================