add account, checkout page

lib/features/cart/presentation/widgets/price_negotiation_section.dart

@@ -0,0 +1,65 @@
+/// Price Negotiation Section Widget
+///
+/// Optional price negotiation checkbox.
+library;
+
+import 'package:flutter/material.dart';
+import 'package:flutter_hooks/flutter_hooks.dart';
+import 'package:worker/core/constants/ui_constants.dart';
+import 'package:worker/core/theme/colors.dart';
+
+/// Price Negotiation Section
+///
+/// Allows user to request price negotiation instead of direct order.
+class PriceNegotiationSection extends HookWidget {
+  final ValueNotifier<bool> needsNegotiation;
+
+  const PriceNegotiationSection({
+    super.key,
+    required this.needsNegotiation,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      margin: const EdgeInsets.symmetric(horizontal: AppSpacing.md),
+      padding: const EdgeInsets.all(AppSpacing.md),
+      decoration: BoxDecoration(
+        color: const Color(0xFFFFF8E1),
+        borderRadius: BorderRadius.circular(AppRadius.card),
+        border: Border.all(color: const Color(0xFFFFD54F)),
+      ),
+      child: Row(
+        children: [
+          Checkbox(
+            value: needsNegotiation.value,
+            onChanged: (value) {
+              needsNegotiation.value = value ?? false;
+            },
+            activeColor: AppColors.warning,
+          ),
+          const Expanded(
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                Text(
+                  'Đàm phán giá',
+                  style: TextStyle(
+                    fontSize: 15,
+                    fontWeight: FontWeight.w600,
+                    color: Color(0xFF212121),
+                  ),
+                ),
+                SizedBox(height: 4),
+                Text(
+                  'Gửi yêu cầu đàm phán giá cho đơn hàng này',
+                  style: TextStyle(fontSize: 13, color: AppColors.grey500),
+                ),
+              ],
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}