add detail page

lib/widgets/detail_info_card.dart

@@ -0,0 +1,76 @@
+import 'package:flutter/material.dart';
+
+class DetailInfoCard extends StatelessWidget {
+  final IconData icon;
+  final String label;
+  final String value;
+  final Color color;
+
+  const DetailInfoCard({
+    super.key,
+    required this.icon,
+    required this.label,
+    required this.value,
+    this.color = Colors.blue,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      padding: EdgeInsets.all(16),
+      decoration: BoxDecoration(
+        color: Colors.white,
+        borderRadius: BorderRadius.circular(16),
+        boxShadow: [
+          BoxShadow(
+            color: Colors.black.withAlpha(150),
+            blurRadius: 10,
+            offset: Offset(0, 4),
+          ),
+        ],
+      ),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          Row(
+            children: [
+              Container(
+                padding: EdgeInsets.all(10),
+                decoration: BoxDecoration(
+                  color: color.withAlpha(10),
+                  borderRadius: BorderRadius.circular(12),
+                ),
+                child: Icon(icon, color: color, size: 24),
+              ),
+              SizedBox(width: 12),
+              Expanded(
+                child: Column(
+                  crossAxisAlignment: CrossAxisAlignment.start,
+                  children: [
+                    Text(
+                      label,
+                      style: TextStyle(
+                        fontSize: 12,
+                        color: Colors.grey.shade600,
+                        fontWeight: FontWeight.w500,
+                      ),
+                    ),
+                    SizedBox(height: 4),
+                    Text(
+                      value,
+                      style: TextStyle(
+                        fontSize: 18,
+                        fontWeight: FontWeight.bold,
+                        color: Colors.grey.shade800,
+                      ),
+                    ),
+                  ],
+                ),
+              ),
+            ],
+          ),
+        ],
+      ),
+    );
+  }
+}