Initial commit

lib/shared/constants/breakpoints.dart

@@ -0,0 +1,10 @@
+
+abstract final class Breakpoints {
+
+  static const double compact = 600;
+
+
+  static const double detail = 720;
+
+  static bool isCompact(double width) => width < compact;
+}

lib/shared/constants/layout_constants.dart

@@ -0,0 +1,11 @@
+import 'dart:io' show Platform;
+
+import 'package:flutter/material.dart';
+
+SliverGridDelegateWithMaxCrossAxisExtent get mediaGridDelegate =>
+    SliverGridDelegateWithMaxCrossAxisExtent(
+      maxCrossAxisExtent: Platform.isAndroid ? 130 : 180,
+      childAspectRatio: 0.55,
+      crossAxisSpacing: 12,
+      mainAxisSpacing: 16,
+    );