// lib/theme.dart
import 'package:flutter/material.dart';
import 'package:google_fonts/google_fonts.dart';

class FluxColors {
  // Palette Tech Dark da loghi generati
  static const Color background = Color(0xFF0A0E17); // Nero profondo/Blu scuro
  static const Color surface = Color(0xFF161B22); // Pannelli scuri
  static const Color primaryBlue = Color(0xFF007BFF); // Blu Elettrico del logo
  static const Color accentTurquoise = Color(0xFF17A2B8); // Turchese del flusso
  static const Color textPrimary = Colors.white;
  static const Color textSecondary = Color(0xFF8B949E); // Grigio fumo
}

ThemeData fluxDarkTheme = ThemeData(
  useMaterial3: true,
  brightness: Brightness.dark,
  primaryColor: FluxColors.primaryBlue,
  scaffoldBackgroundColor: FluxColors.background,
  colorScheme: const ColorScheme.dark(
    primary: FluxColors.primaryBlue,
    secondary: FluxColors.accentTurquoise,
    surface: FluxColors.surface,
    background: FluxColors.background,
    onPrimary: Colors.white,
    onSurface: FluxColors.textPrimary,
  ),

  // Font moderno sans-serif (es. Montserrat o Poppins coerente con descrizione)
  textTheme: GoogleFonts.poppinsTextTheme(ThemeData.dark().textTheme).copyWith(
    headlineMedium: GoogleFonts.poppins(
      color: FluxColors.textPrimary,
      fontWeight: FontWeight.w600,
      letterSpacing: 0.5,
    ),
    titleLarge: GoogleFonts.poppins(
      color: FluxColors.textPrimary,
      fontWeight: FontWeight.w500,
    ),
    bodyMedium: GoogleFonts.poppins(color: FluxColors.textSecondary),
  ),

  appBarTheme: const AppBarTheme(
    backgroundColor: FluxColors.background,
    elevation: 0,
    centerTitle: false,
    titleTextStyle: TextStyle(
      color: FluxColors.textPrimary,
      fontSize: 20,
      fontWeight: FontWeight.w600,
    ),
  ),

  cardTheme: const CardThemeData(
    color: FluxColors.surface,
    elevation: 2,
    margin: EdgeInsets.all(8),
    shape: RoundedRectangleBorder(
      borderRadius: BorderRadius.all(Radius.circular(12)),
    ),
  ),

  // Stile per i pulsanti (es. "Nuova Operazione")
  elevatedButtonTheme: ElevatedButtonThemeData(
    style: ElevatedButton.styleFrom(
      backgroundColor: FluxColors.primaryBlue,
      foregroundColor: Colors.white,
      padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 12),
      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
      textStyle: GoogleFonts.poppins(fontWeight: FontWeight.w500),
    ),
  ),
);