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; }