Enhance Pad Tracking with new Flow and Supply logic

lib/widgets/pad_tracker_card.dart

@@ -140,6 +140,8 @@ class _PadTrackerCardState extends ConsumerState<PadTrackerCard> {
       return const SizedBox.shrink();
     }
 
+    final isDark = Theme.of(context).brightness == Brightness.dark;
+
     return GestureDetector(
       onTap: () {
         Navigator.push(
@@ -150,7 +152,7 @@ class _PadTrackerCardState extends ConsumerState<PadTrackerCard> {
       child: Container(
         padding: const EdgeInsets.all(16),
         decoration: BoxDecoration(
-          color: Colors.white,
+          color: isDark ? const Color(0xFF1E1E1E) : Colors.white,
           borderRadius: BorderRadius.circular(16),
           border: Border.all(color: _statusColor.withValues(alpha: 0.3)),
           boxShadow: [
@@ -187,7 +189,7 @@ class _PadTrackerCardState extends ConsumerState<PadTrackerCard> {
                             style: GoogleFonts.outfit(
                               fontSize: 16,
                               fontWeight: FontWeight.w600,
-                              color: AppColors.charcoal,
+                              color: isDark ? Colors.white : AppColors.charcoal,
                             ),
                           ),
                           InkWell(
@@ -202,7 +204,9 @@ class _PadTrackerCardState extends ConsumerState<PadTrackerCard> {
                                     ? Icons.arrow_downward
                                     : Icons.arrow_upward,
                                 size: 16,
-                                color: AppColors.warmGray),
+                                color: isDark
+                                    ? Colors.white70
+                                    : AppColors.warmGray),
                           )
                         ],
                       ),
@@ -217,7 +221,8 @@ class _PadTrackerCardState extends ConsumerState<PadTrackerCard> {
                     ],
                   ),
                 ),
-                const Icon(Icons.chevron_right, color: AppColors.lightGray),
+                Icon(Icons.chevron_right,
+                    color: isDark ? Colors.white24 : AppColors.lightGray),
               ],
             ),
             const SizedBox(height: 12),