diff --git a/packages/extension-ui/src/styled.ts b/packages/extension-ui/src/styled.ts
index e15c4e7..af6fa84 100644
--- a/packages/extension-ui/src/styled.ts
+++ b/packages/extension-ui/src/styled.ts
@@ -1,4 +1,15 @@
 // Copyright 2019-2026 @pezkuwi/extension-ui authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
-export { styled } from 'styled-components';
+import { styled } from 'styled-components';
+import type { IStyledComponent, RuleSet } from 'styled-components';
+
+// Re-export styled with proper types to avoid TS2742 errors in declaration files
+export { styled };
+
+// Helper type for styled component exports - ensures TypeScript can emit declarations
+// without referencing internal styled-components paths
+export type StyledComponentType<Props extends object = object> = IStyledComponent<'web', Props>;
+
+// Type for the css template literal result
+export type StyledCSS<Props extends object = object> = RuleSet<Props>;