하단 탭 바를 Figma Bottom Navigation 스타일로

app/lib/core/theme/app_theme.dart

@@ -50,18 +50,30 @@ ThemeData buildAppTheme() {
       surfaceTintColor: Colors.transparent,
       centerTitle: true,
     ),
+    // 시안 Bottom Navigation(350:215853) — 바탕 #141414, 알약 표시자 없음, 아이콘 24,
+    // 라벨 ABeeZee 10. 활성은 흰색, 비활성은 #777777.
     navigationBarTheme: NavigationBarThemeData(
-      backgroundColor: AppColors.cosmicSurface,
+      backgroundColor: AppColors.cosmicVoid,
       surfaceTintColor: Colors.transparent,
-      indicatorColor: AppColors.cosmicSurfaceRaised,
+      indicatorColor: Colors.transparent,
       // 탭 항목 높이는 touch-min-app(48) 아래로 내리지 않는다.
       height: AppSizing.touchMinApp + AppSpace.s5,
+      iconTheme: WidgetStateProperty.resolveWith(
+        (states) => IconThemeData(
+          size: 24,
+          color: states.contains(WidgetState.selected)
+              ? AppColors.onCosmic
+              : AppColors.onCosmicMuted,
+        ),
+      ),
       labelTextStyle: WidgetStateProperty.resolveWith(
-        (states) => _style(
-          AppType.caption,
-          states.contains(WidgetState.selected)
-              ? AppColors.cosmicAccent
-              : AppColors.onCosmicVariant,
+        (states) => TextStyle(
+          fontFamily: AppFonts.display,
+          fontSize: 10,
+          letterSpacing: 0.2,
+          color: states.contains(WidgetState.selected)
+              ? AppColors.onCosmic
+              : AppColors.onCosmicMuted,
         ),
       ),
     ),