import 'package:flutter/material.dart';

void main() {
  runApp(const SaqelAdminApp());
}

class SaqelAdminApp extends StatelessWidget {
  const SaqelAdminApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'صَقِل - الإدارة والمدارس',
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        brightness: Brightness.dark,
        scaffoldBackgroundColor: const Color(0xFF0A0E17),
        fontFamily: '-apple-system',
        fontFamilyFallback: const [
          'SF Pro Display',
          'SF Pro Text',
          'SF Arabic',
          'Geeza Pro',
          'Cairo',
          'system-ui',
        ],
        colorScheme: ColorScheme.fromSeed(
          seedColor: const Color(0xFF8B5CF6),
          brightness: Brightness.dark,
          surface: const Color(0xFF111827),
          primary: const Color(0xFF8B5CF6),
        ),
      ),
      home: const AdminHomeScreen(),
    );
  }
}

class AdminHomeScreen extends StatelessWidget {
  const AdminHomeScreen({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Container(
        decoration: const BoxDecoration(
          gradient: RadialGradient(
            center: Alignment(0.0, -0.6),
            radius: 1.2,
            colors: [
              Color(0xFF25134A),
              Color(0xFF0A0E17),
            ],
          ),
        ),
        child: SafeArea(
          child: Center(
            child: SingleChildScrollView(
              padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 32),
              child: ConstrainedBox(
                constraints: const BoxConstraints(maxWidth: 580),
                child: Column(
                  mainAxisAlignment: MainAxisAlignment.center,
                  crossAxisAlignment: CrossAxisAlignment.stretch,
                  children: [
                    Center(
                      child: Container(
                        width: 80,
                        height: 80,
                        decoration: BoxDecoration(
                          gradient: const LinearGradient(
                            colors: [Color(0xFF8B5CF6), Color(0xFFA78BFA)],
                            begin: Alignment.topLeft,
                            end: Alignment.bottomRight,
                          ),
                          borderRadius: BorderRadius.circular(24),
                          boxShadow: const [
                            BoxShadow(
                              color: Color(0x4D8B5CF6),
                              blurRadius: 25,
                              offset: Offset(0, 10),
                            ),
                          ],
                        ),
                        child: const Center(
                          child: Text(
                            'إ',
                            style: TextStyle(
                              fontSize: 42,
                              fontWeight: FontWeight.w900,
                              color: Colors.white,
                            ),
                          ),
                        ),
                      ),
                    ),
                    const SizedBox(height: 24),
                    const Text(
                      'إدارة منصة صَقِل وشبكة المدارس',
                      textAlign: TextAlign.center,
                      style: TextStyle(
                        fontSize: 28,
                        fontWeight: FontWeight.w800,
                        letterSpacing: -0.5,
                        color: Colors.white,
                      ),
                    ),
                    const SizedBox(height: 8),
                    const Text(
                      'لوحة تحكم B2B: إدارة كشوفات المدارس، تراخيص الثقافة العسكرية، والرقابة المركزية',
                      textAlign: TextAlign.center,
                      style: TextStyle(
                        fontSize: 14,
                        color: Color(0xFF94A3B8),
                        height: 1.5,
                      ),
                    ),
                    const SizedBox(height: 36),
                    Container(
                      padding: const EdgeInsets.all(24),
                      decoration: BoxDecoration(
                        color: const Color(0xCC161F30),
                        borderRadius: BorderRadius.circular(20),
                        border: Border.all(
                          color: const Color(0x14FFFFFF),
                        ),
                        boxShadow: const [
                          BoxShadow(
                            color: Color(0x66000000),
                            blurRadius: 30,
                            offset: Offset(0, 15),
                          ),
                        ],
                      ),
                      child: Column(
                        crossAxisAlignment: CrossAxisAlignment.start,
                        children: [
                          Row(
                            children: [
                              Container(
                                width: 10,
                                height: 10,
                                decoration: const BoxDecoration(
                                  color: Color(0xFFA78BFA),
                                  shape: BoxShape.circle,
                                ),
                              ),
                              const SizedBox(width: 10),
                              const Expanded(
                                child: Text(
                                  'التحكم المركزي والأمان (Enterprise Governance)',
                                  style: TextStyle(
                                    fontSize: 14,
                                    fontWeight: FontWeight.w700,
                                    color: Color(0xFFA78BFA),
                                  ),
                                ),
                              ),
                            ],
                          ),
                          const SizedBox(height: 16),
                          _buildFeatureRow('🏫 كشوفات المدارس (Rosters)', 'الربط التلقائي بالرقم الوطني واستيراد CSV'),
                          _buildFeatureRow('💼 التراخيص وحصص المعلمين', 'متابعة المبيعات، العقود، والأرباح'),
                          _buildFeatureRow('🛡️ الرقابة والامتثال', 'حظر القرصنة، مراقبة استهلاك الخوادم وبوابة نبيه'),
                        ],
                      ),
                    ),
                    const SizedBox(height: 28),
                    ElevatedButton(
                      onPressed: () {},
                      style: ElevatedButton.styleFrom(
                        backgroundColor: const Color(0xFF8B5CF6),
                        foregroundColor: Colors.white,
                        padding: const EdgeInsets.symmetric(vertical: 16),
                        shape: RoundedRectangleBorder(
                          borderRadius: BorderRadius.circular(14),
                        ),
                        elevation: 0,
                      ),
                      child: const Text(
                        'دخول لوحة الإدارة المركزية 🏢',
                        style: TextStyle(
                          fontSize: 16,
                          fontWeight: FontWeight.w700,
                        ),
                      ),
                    ),
                  ],
                ),
              ),
            ),
          ),
        ),
      ),
    );
  }

  static Widget _buildFeatureRow(String title, String subtitle) {
    return Padding(
      padding: const EdgeInsets.only(bottom: 12),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Text(
            title,
            style: const TextStyle(
              fontSize: 13.5,
              fontWeight: FontWeight.w600,
              color: Colors.white,
            ),
          ),
          const SizedBox(height: 2),
          Text(
            subtitle,
            style: const TextStyle(
              fontSize: 12,
              color: Color(0xFF64748B),
            ),
          ),
        ],
      ),
    );
  }
}