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hackathon-sfc-a9a4cee231094…/lib/core/theme/app_theme.dart

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Dart

import 'package:flutter/material.dart';
/// Paleta y tema central de WasteNotify.
/// Inspirado en materiales naturales: verde bosque + tierra + blanco hueso.
/// Transmite confianza institucional y respeto ambiental.
abstract final class AppTheme {
// --- Paleta de color ---
static const Color forestGreen = Color(0xFF1B5E20);
static const Color leafGreen = Color(0xFF2E7D32);
static const Color mintGreen = Color(0xFF43A047);
static const Color lightMint = Color(0xFFE8F5E9);
static const Color earthBrown = Color(0xFF4E342E);
static const Color sandBeige = Color(0xFFFFF8E1);
static const Color warmWhite = Color(0xFFFAFAF7);
static const Color charcoal = Color(0xFF212121);
static const Color midGray = Color(0xFF757575);
static const Color lightGray = Color(0xFFEEEEEE);
static const Color alertAmber = Color(0xFFF57C00);
static const Color errorRed = Color(0xFFC62828);
static ThemeData get light {
const colorScheme = ColorScheme(
brightness: Brightness.light,
primary: leafGreen,
onPrimary: Colors.white,
primaryContainer: lightMint,
onPrimaryContainer: forestGreen,
secondary: earthBrown,
onSecondary: Colors.white,
secondaryContainer: sandBeige,
onSecondaryContainer: earthBrown,
error: errorRed,
onError: Colors.white,
surface: warmWhite,
onSurface: charcoal,
);
return ThemeData(
useMaterial3: true,
colorScheme: colorScheme,
fontFamily: 'Georgia', // Serifed: transmite solidez institucional
scaffoldBackgroundColor: warmWhite,
appBarTheme: const AppBarTheme(
backgroundColor: warmWhite,
foregroundColor: charcoal,
elevation: 0,
scrolledUnderElevation: 1,
),
elevatedButtonTheme: ElevatedButtonThemeData(
style: ElevatedButton.styleFrom(
backgroundColor: leafGreen,
foregroundColor: Colors.white,
minimumSize: const Size(double.infinity, 54),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(12),
),
elevation: 3,
shadowColor: leafGreen.withOpacity(0.4),
textStyle: const TextStyle(
fontSize: 16,
fontWeight: FontWeight.w700,
letterSpacing: 0.5,
),
),
),
inputDecorationTheme: InputDecorationTheme(
filled: true,
fillColor: Colors.white,
contentPadding:
const EdgeInsets.symmetric(horizontal: 16, vertical: 16),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(12),
borderSide: const BorderSide(color: lightGray, width: 1.5),
),
enabledBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(12),
borderSide: const BorderSide(color: lightGray, width: 1.5),
),
focusedBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(12),
borderSide: const BorderSide(color: leafGreen, width: 2),
),
errorBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(12),
borderSide: const BorderSide(color: errorRed, width: 1.5),
),
focusedErrorBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(12),
borderSide: const BorderSide(color: errorRed, width: 2),
),
labelStyle: const TextStyle(color: midGray),
hintStyle: TextStyle(color: midGray.withOpacity(0.7)),
),
cardTheme: CardThemeData(
color: Colors.white,
elevation: 2,
shadowColor: Colors.black.withOpacity(0.08),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(16),
),
),
snackBarTheme: SnackBarThemeData(
backgroundColor: charcoal,
contentTextStyle: const TextStyle(color: Colors.white, fontSize: 14),
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
behavior: SnackBarBehavior.floating,
),
);
}
}