import 'package:flutter/material.dart';

/// 健康管家主题配置——薰衣草紫 + 温暖治愈风
class AppTheme {
  AppTheme._();

  static const Color primaryColor = Color(0xFF635BFF);
  static const Color primaryLight = Color(0xFFEDEBFF);
  static const Color primaryDark = Color(0xFF4B44D6);
  static const Color background = Color(0xFFF8F9FF);
  static const Color cardWhite = Color(0xFFFFFFFF);
  static const Color textPrimary = Color(0xFF1A1A1A);
  static const Color textSecondary = Color(0xFF666666);
  static const Color textPlaceholder = Color(0xFF999999);
  static const Color successGreen = Color(0xFF43A047);
  static const Color errorRed = Color(0xFFE53935);
  static const Color warningYellow = Color(0xFFF9A825);
  static const Color secondaryButton = Color(0xFFE5E5F7);

  static ThemeData get lightTheme => ThemeData(
        useMaterial3: true,
        colorScheme: ColorScheme.fromSeed(
          seedColor: primaryColor,
          primary: primaryColor,
          surface: background,
          brightness: Brightness.light,
        ),
        scaffoldBackgroundColor: background,
        appBarTheme: const AppBarTheme(
          backgroundColor: cardWhite,
          foregroundColor: textPrimary,
          elevation: 0,
          centerTitle: true,
        ),
        cardTheme: CardThemeData(
          color: cardWhite,
          elevation: 0,
          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
          margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
        ),
        inputDecorationTheme: InputDecorationTheme(
          filled: true,
          fillColor: cardWhite,
          contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
          border: OutlineInputBorder(
            borderRadius: BorderRadius.circular(12),
            borderSide: const BorderSide(color: secondaryButton, width: 1.5),
          ),
          enabledBorder: OutlineInputBorder(
            borderRadius: BorderRadius.circular(12),
            borderSide: const BorderSide(color: secondaryButton, width: 1.5),
          ),
          focusedBorder: OutlineInputBorder(
            borderRadius: BorderRadius.circular(12),
            borderSide: const BorderSide(color: primaryColor, width: 1.5),
          ),
          hintStyle: const TextStyle(color: textPlaceholder, fontSize: 16),
        ),
        elevatedButtonTheme: ElevatedButtonThemeData(
          style: ElevatedButton.styleFrom(
            backgroundColor: primaryColor,
            foregroundColor: Colors.white,
            minimumSize: const Size(double.infinity, 48),
            shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(24)),
            textStyle: const TextStyle(fontSize: 18, fontWeight: FontWeight.w600),
          ),
        ),
        textTheme: const TextTheme(
          headlineLarge: TextStyle(fontSize: 24, fontWeight: FontWeight.w600, color: textPrimary),
          titleLarge: TextStyle(fontSize: 20, fontWeight: FontWeight.w600, color: textPrimary),
          bodyLarge: TextStyle(fontSize: 18, fontWeight: FontWeight.w400, color: textPrimary),
          bodyMedium: TextStyle(fontSize: 16, fontWeight: FontWeight.w400, color: textSecondary),
          labelMedium: TextStyle(fontSize: 14, fontWeight: FontWeight.w400, color: textSecondary),
          labelSmall: TextStyle(fontSize: 12, fontWeight: FontWeight.w400, color: textSecondary),
        ),
      );
}