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lib/shared/utils/card_gradient.dart

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+import 'package:flutter/material.dart';
+import '../../core/services/card_color_service.dart';
+
+Gradient buildCardGradient(Color primary, Color secondary, GradientType type) {
+  final colorDark = Color.lerp(secondary, Colors.black, 0.3)!;
+
+  switch (type) {
+    case GradientType.linear:
+      return LinearGradient(
+        begin: Alignment.topLeft,
+        end: Alignment.bottomRight,
+        colors: [primary, secondary, colorDark],
+        stops: const [0.0, 0.6, 1.0],
+      );
+    case GradientType.linearReverse:
+      return LinearGradient(
+        begin: Alignment.topRight,
+        end: Alignment.bottomLeft,
+        colors: [primary, secondary, colorDark],
+        stops: const [0.0, 0.6, 1.0],
+      );
+    case GradientType.radial:
+      return RadialGradient(
+        center: Alignment.center,
+        radius: 1.4,
+        colors: [primary, secondary, colorDark],
+        stops: const [0.0, 0.6, 1.0],
+      );
+    case GradientType.sweep:
+      return SweepGradient(
+        center: Alignment.center,
+        startAngle: 0.0,
+        endAngle: 3.14159 * 2,
+        colors: [primary, secondary, colorDark, secondary, primary],
+        stops: const [0.0, 0.25, 0.5, 0.75, 1.0],
+      );
+    case GradientType.solid:
+      return LinearGradient(
+        colors: [primary, primary, primary],
+        stops: const [0.0, 0.5, 1.0],
+      );
+  }
+}