update theme

lib/features/news/presentation/widgets/featured_news_card.dart

@@ -8,7 +8,6 @@ import 'package:cached_network_image/cached_network_image.dart';
 import 'package:flutter/material.dart';
 import 'package:font_awesome_flutter/font_awesome_flutter.dart';
 import 'package:worker/core/constants/ui_constants.dart';
-import 'package:worker/core/theme/colors.dart';
 import 'package:worker/features/news/domain/entities/news_article.dart';
 
 /// Featured News Card
@@ -32,14 +31,16 @@ class FeaturedNewsCard extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    final colorScheme = Theme.of(context).colorScheme;
+
     return GestureDetector(
       onTap: onTap,
       child: Container(
         margin: const EdgeInsets.symmetric(horizontal: AppSpacing.md),
         decoration: BoxDecoration(
-          color: Colors.white,
+          color: colorScheme.surface,
           borderRadius: BorderRadius.circular(AppRadius.xl),
-          border: Border.all(color: const Color(0xFFE2E8F0)),
+          border: Border.all(color: colorScheme.outlineVariant),
           boxShadow: [
             BoxShadow(
               color: Colors.black.withValues(alpha: 0.08),
@@ -63,16 +64,16 @@ class FeaturedNewsCard extends StatelessWidget {
                 fit: BoxFit.cover,
                 placeholder: (context, url) => Container(
                   height: 200,
-                  color: AppColors.grey100,
+                  color: colorScheme.surfaceContainerHighest,
                   child: const Center(child: CircularProgressIndicator()),
                 ),
                 errorWidget: (context, url, error) => Container(
                   height: 200,
-                  color: AppColors.grey100,
-                  child: const FaIcon(
+                  color: colorScheme.surfaceContainerHighest,
+                  child: FaIcon(
                     FontAwesomeIcons.image,
                     size: 48,
-                    color: AppColors.grey500,
+                    color: colorScheme.onSurfaceVariant,
                   ),
                 ),
               ),
@@ -87,10 +88,10 @@ class FeaturedNewsCard extends StatelessWidget {
                   // Title
                   Text(
                     article.title,
-                    style: const TextStyle(
+                    style: TextStyle(
                       fontSize: 18,
                       fontWeight: FontWeight.w600,
-                      color: Color(0xFF1E293B),
+                      color: colorScheme.onSurface,
                       height: 1.4,
                     ),
                   ),
@@ -100,9 +101,9 @@ class FeaturedNewsCard extends StatelessWidget {
                   // Excerpt
                   Text(
                     article.excerpt,
-                    style: const TextStyle(
+                    style: TextStyle(
                       fontSize: 14,
-                      color: Color(0xFF64748B),
+                      color: colorScheme.onSurfaceVariant,
                       height: 1.5,
                     ),
                     maxLines: 3,
@@ -123,18 +124,21 @@ class FeaturedNewsCard extends StatelessWidget {
                           children: [
                             // Date
                             _buildMetaItem(
+                              context,
                               icon: FontAwesomeIcons.calendar,
                               text: article.formattedDate,
                             ),
 
                             // // Views
                             // _buildMetaItem(
+                            //   context,
                             //   icon: Icons.visibility,
                             //   text: '${article.formattedViewCount} lượt xem',
                             // ),
                             //
                             // // Reading time
                             // _buildMetaItem(
+                            //   context,
                             //   icon: Icons.schedule,
                             //   text: article.readingTimeText,
                             // ),
@@ -149,15 +153,15 @@ class FeaturedNewsCard extends StatelessWidget {
                           vertical: 4,
                         ),
                         decoration: BoxDecoration(
-                          color: AppColors.primaryBlue,
+                          color: colorScheme.primary,
                           borderRadius: BorderRadius.circular(16),
                         ),
                         child: Text(
                           article.category.displayName,
-                          style: const TextStyle(
+                          style: TextStyle(
                             fontSize: 12,
                             fontWeight: FontWeight.w500,
-                            color: Colors.white,
+                            color: colorScheme.onPrimary,
                           ),
                         ),
                       ),
@@ -173,15 +177,17 @@ class FeaturedNewsCard extends StatelessWidget {
   }
 
   /// Build metadata item
-  Widget _buildMetaItem({required IconData icon, required String text}) {
+  Widget _buildMetaItem(BuildContext context, {required IconData icon, required String text}) {
+    final colorScheme = Theme.of(context).colorScheme;
+
     return Row(
       mainAxisSize: MainAxisSize.min,
       children: [
-        FaIcon(icon, size: 12, color: const Color(0xFF64748B)),
+        FaIcon(icon, size: 12, color: colorScheme.onSurfaceVariant),
         const SizedBox(width: 4),
         Text(
           text,
-          style: const TextStyle(fontSize: 12, color: Color(0xFF64748B)),
+          style: TextStyle(fontSize: 12, color: colorScheme.onSurfaceVariant),
         ),
       ],
     );