fixed fonts and colors

luckychit/lib/core/themes/app_theme.dart

@@ -2,24 +2,31 @@ import 'package:flutter/material.dart';
 import 'package:flutter_screenutil/flutter_screenutil.dart';
 
 class AppTheme {
-  // Brand Colors
+  // ACCESSIBILITY: Larger font size multiplier for elderly users (50+)
-  static const Color primaryGreen = Color(0xFF2E7D32);
+  static const double fontSizeMultiplier = 1.3; // 30% larger fonts
+  
+  // Brand Colors - Enhanced for better contrast
+  static const Color primaryGreen = Color(0xFF2E7D32); // Dark green for contrast
   static const Color primaryGold = Color(0xFFFFD700);
-  static const Color accentBlue = Color(0xFF1976D2);
+  static const Color accentBlue = Color(0xFF1565C0); // Darker blue for better contrast
-  static const Color accentOrange = Color(0xFFF57C00);
+  static const Color accentOrange = Color(0xFFE65100); // Darker orange for better contrast
-  static const Color accentRed = Color(0xFFD32F2F);
+  static const Color accentRed = Color(0xFFC62828); // Darker red for better contrast
 
-  // Light Theme Colors
+  // Light Theme Colors - High Contrast
-  static const Color lightBackground = Color(0xFFFAFAFA);
+  static const Color lightBackground = Color(0xFFFFFFFF); // Pure white for maximum contrast
   static const Color lightSurface = Color(0xFFFFFFFF);
   static const Color lightPrimary = primaryGreen;
   static const Color lightOnPrimary = Color(0xFFFFFFFF);
+  static const Color lightTextPrimary = Color(0xFF000000); // Pure black text
+  static const Color lightTextSecondary = Color(0xFF424242); // Dark grey, still readable
 
-  // Dark Theme Colors
+  // Dark Theme Colors - High Contrast
-  static const Color darkBackground = Color(0xFF121212);
+  static const Color darkBackground = Color(0xFF000000); // Pure black for maximum contrast
-  static const Color darkSurface = Color(0xFF1E1E1E);
+  static const Color darkSurface = Color(0xFF121212);
-  static const Color darkPrimary = Color(0xFF4CAF50);
+  static const Color darkPrimary = Color(0xFF66BB6A); // Brighter green for dark mode
   static const Color darkOnPrimary = Color(0xFF000000);
+  static const Color darkTextPrimary = Color(0xFFFFFFFF); // Pure white text
+  static const Color darkTextSecondary = Color(0xFFE0E0E0); // Light grey, still readable
 
   /// Light Theme
   static ThemeData get lightTheme {
@@ -42,105 +49,132 @@ class AppTheme {
         onError: Colors.white,
       ),
 
-      // AppBar Theme
+      // AppBar Theme - Accessibility Enhanced
       appBarTheme: AppBarTheme(
-        elevation: 2,
+        elevation: 3, // More elevation for better definition
         centerTitle: false,
         backgroundColor: lightPrimary,
         foregroundColor: Colors.white,
         titleTextStyle: TextStyle(
-          fontSize: 18.sp,
+          fontSize: (20.sp * fontSizeMultiplier), // Larger title
-          fontWeight: FontWeight.w600,
+          fontWeight: FontWeight.bold, // Bolder for better readability
           color: Colors.white,
+          letterSpacing: 0.5, // Better spacing
         ),
         iconTheme: IconThemeData(
           color: Colors.white,
-          size: 24.w,
+          size: (28.w * fontSizeMultiplier), // Larger icons
         ),
       ),
 
       // Card Theme
       cardTheme: CardThemeData(
         elevation: 2,
+        color: lightSurface,
         shape: RoundedRectangleBorder(
           borderRadius: BorderRadius.circular(16.r),
         ),
-        color: lightSurface,
         margin: EdgeInsets.symmetric(horizontal: 8.w, vertical: 4.h),
       ),
 
-      // Elevated Button Theme
+      // Elevated Button Theme - Accessibility Enhanced
       elevatedButtonTheme: ElevatedButtonThemeData(
         style: ElevatedButton.styleFrom(
           backgroundColor: lightPrimary,
           foregroundColor: lightOnPrimary,
-          elevation: 2,
+          elevation: 4, // More elevation for better depth perception
-          padding: EdgeInsets.symmetric(horizontal: 24.w, vertical: 12.h),
+          padding: EdgeInsets.symmetric(
+            horizontal: (28.w * fontSizeMultiplier), // Larger touch target
+            vertical: (16.h * fontSizeMultiplier), // Taller buttons
+          ),
+          minimumSize: Size(0, (52.h * fontSizeMultiplier)), // Minimum 50px height
           textStyle: TextStyle(
-            fontSize: 16.sp,
+            fontSize: (18.sp * fontSizeMultiplier), // Larger text
-            fontWeight: FontWeight.w600,
+            fontWeight: FontWeight.bold, // Bolder
+            letterSpacing: 0.8, // Better spacing
           ),
           shape: RoundedRectangleBorder(
-            borderRadius: BorderRadius.circular(12.r),
+            borderRadius: BorderRadius.circular(16.r), // More rounded
           ),
         ),
       ),
 
-      // Outlined Button Theme
+      // Outlined Button Theme - Accessibility Enhanced
       outlinedButtonTheme: OutlinedButtonThemeData(
         style: OutlinedButton.styleFrom(
           foregroundColor: lightPrimary,
-          side: BorderSide(color: lightPrimary, width: 2),
+          side: const BorderSide(color: lightPrimary, width: 3), // Thicker border
-          padding: EdgeInsets.symmetric(horizontal: 24.w, vertical: 12.h),
+          padding: EdgeInsets.symmetric(
+            horizontal: (28.w * fontSizeMultiplier),
+            vertical: (16.h * fontSizeMultiplier),
+          ),
+          minimumSize: Size(0, (52.h * fontSizeMultiplier)),
           textStyle: TextStyle(
-            fontSize: 16.sp,
+            fontSize: (18.sp * fontSizeMultiplier),
-            fontWeight: FontWeight.w600,
+            fontWeight: FontWeight.bold,
+            letterSpacing: 0.8,
           ),
           shape: RoundedRectangleBorder(
-            borderRadius: BorderRadius.circular(12.r),
+            borderRadius: BorderRadius.circular(16.r),
           ),
         ),
       ),
 
-      // Text Button Theme
+      // Text Button Theme - Accessibility Enhanced
       textButtonTheme: TextButtonThemeData(
         style: TextButton.styleFrom(
           foregroundColor: lightPrimary,
-          padding: EdgeInsets.symmetric(horizontal: 16.w, vertical: 8.h),
+          padding: EdgeInsets.symmetric(
+            horizontal: (20.w * fontSizeMultiplier),
+            vertical: (14.h * fontSizeMultiplier),
+          ),
+          minimumSize: Size(0, (48.h * fontSizeMultiplier)),
           textStyle: TextStyle(
-            fontSize: 16.sp,
+            fontSize: (18.sp * fontSizeMultiplier),
-            fontWeight: FontWeight.w600,
+            fontWeight: FontWeight.bold,
+            letterSpacing: 0.8,
           ),
         ),
       ),
 
-      // Input Decoration Theme
+      // Input Decoration Theme - Accessibility Enhanced
       inputDecorationTheme: InputDecorationTheme(
         filled: true,
         fillColor: Colors.grey.shade50,
         border: OutlineInputBorder(
-          borderRadius: BorderRadius.circular(12.r),
+          borderRadius: BorderRadius.circular(16.r),
-          borderSide: BorderSide(color: Colors.grey.shade300),
+          borderSide: BorderSide(color: Colors.grey.shade400, width: 2), // Thicker border
         ),
         enabledBorder: OutlineInputBorder(
-          borderRadius: BorderRadius.circular(12.r),
+          borderRadius: BorderRadius.circular(16.r),
-          borderSide: BorderSide(color: Colors.grey.shade300),
+          borderSide: BorderSide(color: Colors.grey.shade400, width: 2),
         ),
         focusedBorder: OutlineInputBorder(
-          borderRadius: BorderRadius.circular(12.r),
+          borderRadius: BorderRadius.circular(16.r),
-          borderSide: const BorderSide(color: lightPrimary, width: 2),
+          borderSide: const BorderSide(color: lightPrimary, width: 3), // Thicker focus border
         ),
         errorBorder: OutlineInputBorder(
-          borderRadius: BorderRadius.circular(12.r),
+          borderRadius: BorderRadius.circular(16.r),
-          borderSide: const BorderSide(color: accentRed, width: 2),
+          borderSide: const BorderSide(color: accentRed, width: 3),
+        ),
+        contentPadding: EdgeInsets.symmetric(
+          horizontal: (20.w * fontSizeMultiplier),
+          vertical: (18.h * fontSizeMultiplier), // More padding
+        ),
+        labelStyle: TextStyle(
+          fontSize: (17.sp * fontSizeMultiplier), // Larger labels
+          fontWeight: FontWeight.w600,
+        ),
+        hintStyle: TextStyle(
+          fontSize: (17.sp * fontSizeMultiplier),
+          color: Colors.grey.shade600,
         ),
-        contentPadding: EdgeInsets.symmetric(horizontal: 16.w, vertical: 16.h),
       ),
 
-      // Icon Theme
+      // Icon Theme - Accessibility Enhanced
       iconTheme: IconThemeData(
-        color: Colors.grey.shade700,
+        color: Colors.grey.shade800, // Darker for better contrast
-        size: 24.w,
+        size: (28.w * fontSizeMultiplier), // Larger icons
       ),
 
       // Floating Action Button Theme
@@ -153,51 +187,84 @@ class AppTheme {
         ),
       ),
 
-      // Bottom Navigation Bar Theme
+      // Bottom Navigation Bar Theme - Accessibility Enhanced
       bottomNavigationBarTheme: BottomNavigationBarThemeData(
         backgroundColor: lightSurface,
         selectedItemColor: lightPrimary,
-        unselectedItemColor: Colors.grey.shade600,
+        unselectedItemColor: Colors.grey.shade700, // Darker for better contrast
-        selectedLabelStyle: TextStyle(fontSize: 12.sp, fontWeight: FontWeight.w600),
+        selectedLabelStyle: TextStyle(
-        unselectedLabelStyle: TextStyle(fontSize: 12.sp),
+          fontSize: (15.sp * fontSizeMultiplier), // Larger labels
+          fontWeight: FontWeight.bold,
+        ),
+        unselectedLabelStyle: TextStyle(
+          fontSize: (14.sp * fontSizeMultiplier),
+          fontWeight: FontWeight.w600,
+        ),
+        selectedIconTheme: IconThemeData(
+          size: (32.w * fontSizeMultiplier), // Larger icons
+        ),
+        unselectedIconTheme: IconThemeData(
+          size: (28.w * fontSizeMultiplier),
+        ),
         type: BottomNavigationBarType.fixed,
         elevation: 8,
       ),
 
-      // Divider Theme
+      // Divider Theme - Accessibility Enhanced
       dividerTheme: DividerThemeData(
-        color: Colors.grey.shade300,
+        color: Colors.grey.shade400, // Darker for better visibility
-        thickness: 1,
+        thickness: 2, // Thicker for better visibility
-        space: 1,
+        space: 2,
       ),
 
-      // Chip Theme
+      // Chip Theme - Accessibility Enhanced
       chipTheme: ChipThemeData(
         backgroundColor: Colors.grey.shade200,
         selectedColor: lightPrimary.withOpacity(0.2),
-        labelStyle: TextStyle(fontSize: 14.sp),
+        labelStyle: TextStyle(
-        padding: EdgeInsets.symmetric(horizontal: 12.w, vertical: 8.h),
+          fontSize: (16.sp * fontSizeMultiplier), // Larger text
+          fontWeight: FontWeight.w600,
+        ),
+        padding: EdgeInsets.symmetric(
+          horizontal: (16.w * fontSizeMultiplier),
+          vertical: (12.h * fontSizeMultiplier),
+        ),
         shape: RoundedRectangleBorder(
-          borderRadius: BorderRadius.circular(16.r),
+          borderRadius: BorderRadius.circular(20.r),
         ),
       ),
 
-      // Dialog Theme
+      // Dialog Theme - Accessibility Enhanced
       dialogTheme: DialogThemeData(
-        elevation: 4,
+        elevation: 8, // More elevation for better depth
         shape: RoundedRectangleBorder(
-          borderRadius: BorderRadius.circular(16.r),
+          borderRadius: BorderRadius.circular(20.r),
+        ),
+        titleTextStyle: TextStyle(
+          fontSize: (22.sp * fontSizeMultiplier), // Larger titles
+          fontWeight: FontWeight.bold,
+          color: lightTextPrimary,
+        ),
+        contentTextStyle: TextStyle(
+          fontSize: (17.sp * fontSizeMultiplier), // Larger content
+          color: lightTextSecondary,
+          height: 1.5, // Better line spacing
         ),
       ),
 
-      // Snackbar Theme
+      // Snackbar Theme - Accessibility Enhanced
       snackBarTheme: SnackBarThemeData(
-        backgroundColor: Colors.grey.shade800,
+        backgroundColor: Colors.grey.shade900, // Darker for better contrast
-        contentTextStyle: TextStyle(fontSize: 14.sp, color: Colors.white),
+        contentTextStyle: TextStyle(
+          fontSize: (17.sp * fontSizeMultiplier), // Larger text
+          color: Colors.white,
+          fontWeight: FontWeight.w600,
+        ),
         shape: RoundedRectangleBorder(
-          borderRadius: BorderRadius.circular(12.r),
+          borderRadius: BorderRadius.circular(16.r),
         ),
         behavior: SnackBarBehavior.floating,
+        actionTextColor: primaryGold, // High contrast action color
       ),
     );
   }
@@ -223,62 +290,73 @@ class AppTheme {
         onError: Colors.white,
       ),
 
-      // AppBar Theme
+      // AppBar Theme - Accessibility Enhanced
       appBarTheme: AppBarTheme(
-        elevation: 0,
+        elevation: 3,
         centerTitle: false,
         backgroundColor: darkSurface,
         foregroundColor: Colors.white,
         titleTextStyle: TextStyle(
-          fontSize: 18.sp,
+          fontSize: (20.sp * fontSizeMultiplier),
-          fontWeight: FontWeight.w600,
+          fontWeight: FontWeight.bold,
           color: Colors.white,
+          letterSpacing: 0.5,
         ),
         iconTheme: IconThemeData(
           color: Colors.white,
-          size: 24.w,
+          size: (28.w * fontSizeMultiplier),
         ),
       ),
 
-      // Card Theme
+      // Card Theme - Accessibility Enhanced
       cardTheme: CardThemeData(
-        elevation: 4,
+        elevation: 6, // More elevation for better depth in dark mode
+        color: darkSurface,
         shape: RoundedRectangleBorder(
           borderRadius: BorderRadius.circular(16.r),
         ),
-        color: darkSurface,
+        margin: EdgeInsets.symmetric(horizontal: 8.w, vertical: 6.h), // More spacing
-        margin: EdgeInsets.symmetric(horizontal: 8.w, vertical: 4.h),
       ),
 
-      // Elevated Button Theme
+      // Elevated Button Theme - Accessibility Enhanced
       elevatedButtonTheme: ElevatedButtonThemeData(
         style: ElevatedButton.styleFrom(
           backgroundColor: darkPrimary,
           foregroundColor: darkOnPrimary,
-          elevation: 2,
+          elevation: 4,
-          padding: EdgeInsets.symmetric(horizontal: 24.w, vertical: 12.h),
+          padding: EdgeInsets.symmetric(
+            horizontal: (28.w * fontSizeMultiplier),
+            vertical: (16.h * fontSizeMultiplier),
+          ),
+          minimumSize: Size(0, (52.h * fontSizeMultiplier)),
           textStyle: TextStyle(
-            fontSize: 16.sp,
+            fontSize: (18.sp * fontSizeMultiplier),
-            fontWeight: FontWeight.w600,
+            fontWeight: FontWeight.bold,
+            letterSpacing: 0.8,
           ),
           shape: RoundedRectangleBorder(
-            borderRadius: BorderRadius.circular(12.r),
+            borderRadius: BorderRadius.circular(16.r),
           ),
         ),
       ),
 
-      // Outlined Button Theme
+      // Outlined Button Theme - Accessibility Enhanced
       outlinedButtonTheme: OutlinedButtonThemeData(
         style: OutlinedButton.styleFrom(
           foregroundColor: darkPrimary,
-          side: BorderSide(color: darkPrimary, width: 2),
+          side: BorderSide(color: darkPrimary, width: 3), // Thicker border
-          padding: EdgeInsets.symmetric(horizontal: 24.w, vertical: 12.h),
+          padding: EdgeInsets.symmetric(
+            horizontal: (28.w * fontSizeMultiplier),
+            vertical: (16.h * fontSizeMultiplier),
+          ),
+          minimumSize: Size(0, (52.h * fontSizeMultiplier)),
           textStyle: TextStyle(
-            fontSize: 16.sp,
+            fontSize: (18.sp * fontSizeMultiplier),
-            fontWeight: FontWeight.w600,
+            fontWeight: FontWeight.bold,
+            letterSpacing: 0.8,
           ),
           shape: RoundedRectangleBorder(
-            borderRadius: BorderRadius.circular(12.r),
+            borderRadius: BorderRadius.circular(16.r),
           ),
         ),
       ),
@@ -363,12 +441,22 @@ class AppTheme {
         ),
       ),
 
-      // Dialog Theme
+      // Dialog Theme - Accessibility Enhanced
       dialogTheme: DialogThemeData(
         backgroundColor: darkSurface,
-        elevation: 4,
+        elevation: 8, // More elevation
         shape: RoundedRectangleBorder(
-          borderRadius: BorderRadius.circular(16.r),
+          borderRadius: BorderRadius.circular(20.r),
+        ),
+        titleTextStyle: TextStyle(
+          fontSize: (22.sp * fontSizeMultiplier),
+          fontWeight: FontWeight.bold,
+          color: darkTextPrimary,
+        ),
+        contentTextStyle: TextStyle(
+          fontSize: (17.sp * fontSizeMultiplier),
+          color: darkTextSecondary,
+          height: 1.5,
         ),
       ),