feat: Update color definitions and improve PlaceholderBanner widget styling

apps/mobile/packages/design_system/lib/src/ui_colors.dart

@@ -21,8 +21,8 @@ class UiColors {
   /// Foreground color on primary background (#F7FAFC)
   static const Color primaryForeground = Color(0xFFF7FAFC);
 
-  /// Inverse primary color (#9FABF1)
-  static const Color primaryInverse = Color(0xFF9FABF1);
+  /// Inverse primary color (#0A39DF)
+  static const Color primaryInverse = Color.fromARGB(29, 10, 56, 223);
   
   /// Secondary background color (#F1F3F5)
   static const Color secondary = Color(0xFFF1F3F5);

apps/mobile/packages/features/staff/home/lib/src/presentation/pages/worker_home_page.dart

@@ -67,7 +67,7 @@ class WorkerHomePage extends StatelessWidget {
                           return PlaceholderBanner(
                             title: bannersI18n.complete_profile_title,
                             subtitle: bannersI18n.complete_profile_subtitle,
-                            bg: UiColors.bgHighlight,
+                            bg: UiColors.primaryInverse,
                             accent: UiColors.primary,
                             onTap: () {
                               Modular.to.toProfile();

apps/mobile/packages/features/staff/home/lib/src/presentation/widgets/home_page/placeholder_banner.dart

@@ -1,24 +1,33 @@
 import 'package:flutter/material.dart';
 
-
 import 'package:design_system/design_system.dart';
 
-
 /// Banner widget for placeholder actions, using design system tokens.
 class PlaceholderBanner extends StatelessWidget {
   /// Banner title
   final String title;
+
   /// Banner subtitle
   final String subtitle;
+
   /// Banner background color
   final Color bg;
+
   /// Banner accent color
   final Color accent;
+
   /// Optional tap callback
   final VoidCallback? onTap;
 
   /// Creates a [PlaceholderBanner].
-  const PlaceholderBanner({super.key, required this.title, required this.subtitle, required this.bg, required this.accent, this.onTap});
+  const PlaceholderBanner({
+    super.key,
+    required this.title,
+    required this.subtitle,
+    required this.bg,
+    required this.accent,
+    this.onTap,
+  });
 
   @override
   Widget build(BuildContext context) {
@@ -29,7 +38,7 @@ class PlaceholderBanner extends StatelessWidget {
         decoration: BoxDecoration(
           color: bg,
           borderRadius: BorderRadius.circular(UiConstants.radiusBase),
-          border: Border.all(color: accent.withValues(alpha: 0.3)),
+          border: Border.all(color: accent, width: 1),
         ),
         child: Row(
           children: [
@@ -41,7 +50,11 @@ class PlaceholderBanner extends StatelessWidget {
                 color: UiColors.bgBanner,
                 shape: BoxShape.circle,
               ),
-              child: Icon(UiIcons.sparkles, color: accent, size: UiConstants.space5),
+              child: Icon(
+                UiIcons.sparkles,
+                color: accent,
+                size: UiConstants.space5,
+              ),
             ),
             const SizedBox(width: UiConstants.space3),
             Expanded(
@@ -50,12 +63,9 @@ class PlaceholderBanner extends StatelessWidget {
                 children: [
                   Text(
                     title,
-                    style: UiTypography.body1b,
-                  ),
-                  Text(
-                    subtitle,
-                    style: UiTypography.body3r.copyWith(color: UiColors.mutedForeground),
+                    style: UiTypography.body1b.copyWith(color: accent),
                   ),
+                  Text(subtitle, style: UiTypography.body3r.textSecondary),
                 ],
               ),
             ),