update theme

lib/features/auth/presentation/widgets/phone_input_field.dart

@@ -8,7 +8,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter/services.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/core/theme/colors.dart'; // For AppColors.danger
 
 /// Phone Input Field
 ///
@@ -65,6 +65,8 @@ class PhoneInputField extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    final colorScheme = Theme.of(context).colorScheme;
+
     return TextFormField(
       controller: controller,
       focusNode: focusNode,
@@ -78,41 +80,41 @@ class PhoneInputField extends StatelessWidget {
         // Limit to reasonable phone length
         LengthLimitingTextInputFormatter(15),
       ],
-      style: const TextStyle(
+      style: TextStyle(
         fontSize: InputFieldSpecs.fontSize,
-        color: AppColors.grey900,
+        color: colorScheme.onSurface,
       ),
       decoration: InputDecoration(
         labelText: 'Số điện thoại',
-        labelStyle: const TextStyle(
+        labelStyle: TextStyle(
           fontSize: InputFieldSpecs.labelFontSize,
-          color: AppColors.grey500,
+          color: colorScheme.onSurfaceVariant,
         ),
         hintText: 'Nhập số điện thoại',
-        hintStyle: const TextStyle(
+        hintStyle: TextStyle(
           fontSize: InputFieldSpecs.hintFontSize,
-          color: AppColors.grey500,
+          color: colorScheme.onSurfaceVariant,
         ),
-        prefixIcon: const Icon(
+        prefixIcon: Icon(
           FontAwesomeIcons.phone,
-          color: AppColors.primaryBlue,
+          color: colorScheme.primary,
           size: AppIconSize.md,
         ),
         filled: true,
-        fillColor: AppColors.white,
+        fillColor: colorScheme.surface,
         contentPadding: InputFieldSpecs.contentPadding,
         border: OutlineInputBorder(
           borderRadius: BorderRadius.circular(InputFieldSpecs.borderRadius),
-          borderSide: const BorderSide(color: AppColors.grey100, width: 1.0),
+          borderSide: BorderSide(color: colorScheme.surfaceContainerHighest, width: 1.0),
         ),
         enabledBorder: OutlineInputBorder(
           borderRadius: BorderRadius.circular(InputFieldSpecs.borderRadius),
-          borderSide: const BorderSide(color: AppColors.grey100, width: 1.0),
+          borderSide: BorderSide(color: colorScheme.surfaceContainerHighest, width: 1.0),
         ),
         focusedBorder: OutlineInputBorder(
           borderRadius: BorderRadius.circular(InputFieldSpecs.borderRadius),
-          borderSide: const BorderSide(
-            color: AppColors.primaryBlue,
+          borderSide: BorderSide(
+            color: colorScheme.primary,
             width: 2.0,
           ),
         ),