import 'package:flutter/material.dart';

/// 健康管家 — Fresh Air 清新风
/// 薄荷绿主调 · 轻透白底 · 珊瑚点缀
class AppTheme {
  AppTheme._();

  static const Color primary = Color(0xFF14B8A6);       // 薄荷绿
  static const Color primaryLight = Color(0xFFE6FAF6);  // 极浅薄荷
  static const Color primaryDark = Color(0xFF0F9D8E);   // 深薄荷

  static const Color bg = Color(0xFFF6F9FB);            // 清透底
  static const Color surface = Color(0xFFFFFFFF);        // 卡片白

  static const Color text = Color(0xFF1C2B33);
  static const Color textSub = Color(0xFF6B7C85);
  static const Color textHint = Color(0xFFA5B4BD);

  static const Color success = Color(0xFF10B981);
  static const Color error = Color(0xFFF56C6C);
  static const Color warning = Color(0xFFF59E0B);
  static const Color accent = Color(0xFFFF7B6B);        // 珊瑚

  static const Color border = Color(0xFFE5EBF0);
  static const Color divider = Color(0xFFEEF2F6);

  static ThemeData get lightTheme => ThemeData(
        useMaterial3: true,
        colorScheme: ColorScheme.fromSeed(
          seedColor: primary,
          primary: primary,
          surface: bg,
          brightness: Brightness.light,
        ),
        scaffoldBackgroundColor: bg,

        appBarTheme: const AppBarTheme(
          backgroundColor: surface,
          foregroundColor: text,
          elevation: 0,
          centerTitle: true,
          scrolledUnderElevation: 0,
        ),

        cardTheme: CardThemeData(
          color: surface,
          elevation: 0,
          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
          margin: EdgeInsets.zero,
        ),

        inputDecorationTheme: InputDecorationTheme(
          filled: true,
          fillColor: const Color(0xFFF2F6F9),
          contentPadding: const EdgeInsets.symmetric(horizontal: 14, vertical: 12),
          border: OutlineInputBorder(borderRadius: BorderRadius.circular(12), borderSide: BorderSide.none),
          enabledBorder: OutlineInputBorder(borderRadius: BorderRadius.circular(12), borderSide: BorderSide.none),
          focusedBorder: OutlineInputBorder(borderRadius: BorderRadius.circular(12), borderSide: const BorderSide(color: primary, width: 1.5)),
          hintStyle: const TextStyle(color: textHint, fontSize: 15),
        ),

        elevatedButtonTheme: ElevatedButtonThemeData(
          style: ElevatedButton.styleFrom(
            backgroundColor: primary,
            foregroundColor: Colors.white,
            minimumSize: const Size(double.infinity, 48),
            shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(14)),
            textStyle: const TextStyle(fontSize: 16, fontWeight: FontWeight.w600),
            elevation: 0,
          ),
        ),

        dialogTheme: DialogThemeData(
          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(22)),
        ),

        textTheme: const TextTheme(
          headlineLarge: TextStyle(fontSize: 24, fontWeight: FontWeight.w700, color: text),
          titleLarge: TextStyle(fontSize: 20, fontWeight: FontWeight.w600, color: text),
          titleMedium: TextStyle(fontSize: 18, fontWeight: FontWeight.w600, color: text),
          bodyLarge: TextStyle(fontSize: 16, color: text, height: 1.5),
          bodyMedium: TextStyle(fontSize: 15, color: textSub, height: 1.4),
          labelMedium: TextStyle(fontSize: 13, color: textSub),
          labelSmall: TextStyle(fontSize: 11, color: textHint),
        ),
      );
}