Initial commit: Eventify frontend

lib/core/constants.dart

@@ -0,0 +1,25 @@
+import 'package:flutter/material.dart';
+
+class AppConstants {
+  // Layout
+  static const double desktopBreakpoint = 820;
+  static const double tabletBreakpoint = 600;
+
+  // Padding & Radius
+  static const double defaultPadding = 16;
+  static const double cardRadius = 14;
+
+  // Animation Durations
+  static const Duration fastAnimation = Duration(milliseconds: 200);
+  static const Duration normalAnimation = Duration(milliseconds: 350);
+  static const Duration slowAnimation = Duration(milliseconds: 600);
+
+  // Colors
+  static const Color primaryColor = Color(0xFF2563EB); // Blue-600
+  static const Color backgroundColor = Color(0xFFF9FAFB);
+  static const Color textPrimary = Color(0xFF111827);
+  static const Color textSecondary = Color(0xFF6B7280);
+
+  // API
+  static const int apiTimeoutSeconds = 30;
+}