import 'package:flutter/material.dart';

class AppTheme {
  // 颜色方案
  static const Color primaryColor = Color(0xFF2563EB);
  static const Color secondaryColor = Color(0xFF7C3AED);
  static const Color backgroundColor = Color(0xFFF8FAFC);
  static const Color cardColor = Colors.white;
  static const Color systemTagColor = Color(0xFFE2E8F0);
  static const Color systemTagTextColor = Color(0xFF64748B);

  // 渐变背景
  static final LinearGradient appBarGradient = LinearGradient(
    colors: [primaryColor, secondaryColor],
    begin: Alignment.centerLeft,
    end: Alignment.centerRight,
  );

  // 卡片阴影
  static final List<BoxShadow> cardShadow = [
    BoxShadow(
      color: Colors.grey.withOpacity(0.1),
      spreadRadius: 2,
      blurRadius: 8,
      offset: const Offset(0, 2),
    ),
  ];

  // 主题数据
  static ThemeData lightTheme = ThemeData(
    useMaterial3: true,
    colorScheme: ColorScheme.fromSeed(
      seedColor: primaryColor,
      primary: primaryColor,
      secondary: secondaryColor,
      background: backgroundColor,
    ),
    scaffoldBackgroundColor: backgroundColor,
    cardTheme: CardThemeData(
      elevation: 0,
      shape: RoundedRectangleBorder(
        borderRadius: BorderRadius.circular(16),
      ),
      color: cardColor,
      shadowColor: Colors.transparent,
    ),
    appBarTheme: const AppBarTheme(
      elevation: 0,
      centerTitle: true,
      backgroundColor: Colors.transparent,
      foregroundColor: Colors.white,
    ),
  );
}