653 lines
21 KiB
Dart
653 lines
21 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:google_fonts/google_fonts.dart';
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/// A class that contains all theme configurations for the application.
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/// Implements "Purposeful Transit Minimalism" design system with high-contrast utility colors.
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class AppTheme {
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AppTheme._();
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// Core color palette - High-Contrast Utility for Panama's bright outdoor conditions
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static const Color primaryBlack = Color(0xFF101820);
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static const Color accentYellow = Color(0xFFFEE715);
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static const Color surfaceWhite = Color(0xFFFFFFFF);
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static const Color textSecondary = Color(0xFF6B7280);
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static const Color successGreen = Color(0xFF10B981);
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static const Color warningOrange = Color(0xFFF59E0B);
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static const Color errorRed = Color(0xFFEF4444);
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static const Color backgroundGray = Color(0xFFF9FAFB);
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static const Color borderLight = Color(0xFFE5E7EB);
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static const Color overlayDark = Color(0x1F2937CC);
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// Text emphasis colors for light theme
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static const Color textHighEmphasisLight = Color(0xFF101820); // Primary black
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static const Color textMediumEmphasisLight =
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Color(0xFF6B7280); // Text secondary
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static const Color textDisabledLight = Color(0xFFE5E7EB); // Border light
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// Text emphasis colors for dark theme
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static const Color textHighEmphasisDark = Color(0xFFFFFFFF);
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static const Color textMediumEmphasisDark = Color(0xFF9CA3AF);
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static const Color textDisabledDark = Color(0xFF6B7280);
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// Shadow colors for subtle elevation
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static const Color shadowLight =
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Color(0x33000000); // 20% opacity black for 2-4dp blur
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static const Color shadowDark = Color(0x33FFFFFF); // 20% opacity white
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/// Light theme - Optimized for Panama's bright outdoor conditions
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static ThemeData lightTheme = ThemeData(
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brightness: Brightness.light,
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colorScheme: ColorScheme(
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brightness: Brightness.light,
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primary: primaryBlack,
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onPrimary: surfaceWhite,
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primaryContainer: textSecondary,
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onPrimaryContainer: surfaceWhite,
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secondary: accentYellow,
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onSecondary: primaryBlack,
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secondaryContainer: warningOrange,
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onSecondaryContainer: primaryBlack,
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tertiary: successGreen,
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onTertiary: surfaceWhite,
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tertiaryContainer: successGreen,
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onTertiaryContainer: surfaceWhite,
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error: errorRed,
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onError: surfaceWhite,
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surface: surfaceWhite,
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onSurface: primaryBlack,
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onSurfaceVariant: textSecondary,
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outline: borderLight,
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outlineVariant: borderLight,
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shadow: shadowLight,
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scrim: overlayDark,
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inverseSurface: primaryBlack,
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onInverseSurface: surfaceWhite,
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inversePrimary: accentYellow,
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),
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scaffoldBackgroundColor: backgroundGray,
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cardColor: surfaceWhite,
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dividerColor: borderLight,
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// AppBar theme - Clean, minimal header
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appBarTheme: AppBarTheme(
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backgroundColor: surfaceWhite,
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foregroundColor: primaryBlack,
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elevation: 0,
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shadowColor: shadowLight,
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surfaceTintColor: Colors.transparent,
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titleTextStyle: GoogleFonts.roboto(
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fontSize: 20,
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fontWeight: FontWeight.w500,
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color: primaryBlack,
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),
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iconTheme: const IconThemeData(
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color: primaryBlack,
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size: 24,
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),
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),
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// Card theme - Clean separation without borders
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cardTheme: CardThemeData(
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color: surfaceWhite,
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elevation: 2.0,
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shadowColor: shadowLight,
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surfaceTintColor: Colors.transparent,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(12.0),
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),
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margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
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),
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// Bottom navigation - Persistent state with contextual badges
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bottomNavigationBarTheme: BottomNavigationBarThemeData(
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backgroundColor: surfaceWhite,
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selectedItemColor: primaryBlack,
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unselectedItemColor: textSecondary,
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type: BottomNavigationBarType.fixed,
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elevation: 8,
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selectedLabelStyle: GoogleFonts.openSans(
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fontSize: 12,
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fontWeight: FontWeight.w600,
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),
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unselectedLabelStyle: GoogleFonts.openSans(
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fontSize: 12,
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fontWeight: FontWeight.w400,
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),
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),
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// Floating action button - High contrast accent
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floatingActionButtonTheme: const FloatingActionButtonThemeData(
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backgroundColor: accentYellow,
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foregroundColor: primaryBlack,
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elevation: 4.0,
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shape: CircleBorder(),
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),
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// Button themes - Clear action hierarchy
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elevatedButtonTheme: ElevatedButtonThemeData(
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style: ElevatedButton.styleFrom(
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foregroundColor: primaryBlack,
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backgroundColor: accentYellow,
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elevation: 0,
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padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 16),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(8.0),
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),
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textStyle: GoogleFonts.openSans(
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fontSize: 16,
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fontWeight: FontWeight.w600,
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),
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),
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),
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outlinedButtonTheme: OutlinedButtonThemeData(
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style: OutlinedButton.styleFrom(
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foregroundColor: primaryBlack,
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backgroundColor: Colors.transparent,
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padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 16),
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side: const BorderSide(color: primaryBlack, width: 1),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(8.0),
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),
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textStyle: GoogleFonts.openSans(
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fontSize: 16,
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fontWeight: FontWeight.w600,
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),
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),
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),
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textButtonTheme: TextButtonThemeData(
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style: TextButton.styleFrom(
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foregroundColor: primaryBlack,
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padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(8.0),
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),
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textStyle: GoogleFonts.openSans(
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fontSize: 16,
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fontWeight: FontWeight.w600,
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),
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),
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),
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// Typography - Optimized for Spanish character support and mobile readability
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textTheme: _buildTextTheme(isLight: true),
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// Input decoration - Clean form elements with clear focus states
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inputDecorationTheme: InputDecorationTheme(
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fillColor: surfaceWhite,
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filled: true,
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contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 16),
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border: OutlineInputBorder(
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borderRadius: BorderRadius.circular(8.0),
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borderSide: const BorderSide(color: borderLight, width: 1),
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),
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enabledBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(8.0),
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borderSide: const BorderSide(color: borderLight, width: 1),
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),
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focusedBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(8.0),
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borderSide: const BorderSide(color: primaryBlack, width: 2),
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),
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errorBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(8.0),
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borderSide: const BorderSide(color: errorRed, width: 1),
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),
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focusedErrorBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(8.0),
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borderSide: const BorderSide(color: errorRed, width: 2),
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),
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labelStyle: GoogleFonts.openSans(
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color: textSecondary,
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fontSize: 16,
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fontWeight: FontWeight.w400,
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),
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hintStyle: GoogleFonts.openSans(
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color: textDisabledLight,
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fontSize: 16,
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fontWeight: FontWeight.w400,
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),
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),
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// Interactive elements
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switchTheme: SwitchThemeData(
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thumbColor: WidgetStateProperty.resolveWith((states) {
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if (states.contains(WidgetState.selected)) {
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return accentYellow;
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}
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return borderLight;
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}),
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trackColor: WidgetStateProperty.resolveWith((states) {
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if (states.contains(WidgetState.selected)) {
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return primaryBlack;
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}
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return textSecondary;
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}),
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),
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checkboxTheme: CheckboxThemeData(
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fillColor: WidgetStateProperty.resolveWith((states) {
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if (states.contains(WidgetState.selected)) {
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return primaryBlack;
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}
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return Colors.transparent;
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}),
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checkColor: WidgetStateProperty.all(accentYellow),
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side: const BorderSide(color: borderLight, width: 1),
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),
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radioTheme: RadioThemeData(
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fillColor: WidgetStateProperty.resolveWith((states) {
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if (states.contains(WidgetState.selected)) {
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return primaryBlack;
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}
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return textSecondary;
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}),
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),
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progressIndicatorTheme: const ProgressIndicatorThemeData(
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color: primaryBlack,
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linearTrackColor: borderLight,
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),
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sliderTheme: SliderThemeData(
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activeTrackColor: primaryBlack,
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thumbColor: accentYellow,
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overlayColor: accentYellow.withValues(alpha: 0.2),
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inactiveTrackColor: borderLight,
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),
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tabBarTheme: TabBarThemeData(
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labelColor: primaryBlack,
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unselectedLabelColor: textSecondary,
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indicatorColor: accentYellow,
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indicatorSize: TabBarIndicatorSize.tab,
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labelStyle: GoogleFonts.roboto(
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fontSize: 16,
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fontWeight: FontWeight.w500,
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),
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unselectedLabelStyle: GoogleFonts.roboto(
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fontSize: 16,
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fontWeight: FontWeight.w400,
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),
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),
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tooltipTheme: TooltipThemeData(
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decoration: BoxDecoration(
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color: primaryBlack,
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borderRadius: BorderRadius.circular(8),
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),
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textStyle: GoogleFonts.openSans(
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color: surfaceWhite,
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fontSize: 14,
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fontWeight: FontWeight.w400,
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),
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),
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snackBarTheme: SnackBarThemeData(
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backgroundColor: primaryBlack,
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contentTextStyle: GoogleFonts.openSans(
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color: surfaceWhite,
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fontSize: 16,
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fontWeight: FontWeight.w400,
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),
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actionTextColor: accentYellow,
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behavior: SnackBarBehavior.floating,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(8.0),
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),
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elevation: 4,
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), dialogTheme: DialogThemeData(backgroundColor: surfaceWhite),
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);
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/// Dark theme - Maintains high contrast for nighttime use
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static ThemeData darkTheme = ThemeData(
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brightness: Brightness.dark,
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colorScheme: ColorScheme(
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brightness: Brightness.dark,
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primary: accentYellow,
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onPrimary: primaryBlack,
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primaryContainer: warningOrange,
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onPrimaryContainer: primaryBlack,
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secondary: primaryBlack,
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onSecondary: surfaceWhite,
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secondaryContainer: textSecondary,
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onSecondaryContainer: surfaceWhite,
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tertiary: successGreen,
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onTertiary: primaryBlack,
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tertiaryContainer: successGreen,
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onTertiaryContainer: primaryBlack,
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error: errorRed,
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onError: surfaceWhite,
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surface: primaryBlack,
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onSurface: surfaceWhite,
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onSurfaceVariant: textMediumEmphasisDark,
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outline: textSecondary,
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outlineVariant: textSecondary,
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shadow: shadowDark,
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scrim: overlayDark,
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inverseSurface: surfaceWhite,
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onInverseSurface: primaryBlack,
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inversePrimary: primaryBlack,
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),
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scaffoldBackgroundColor: primaryBlack,
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cardColor: Color(0xFF1F2937),
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dividerColor: textSecondary,
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appBarTheme: AppBarTheme(
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backgroundColor: primaryBlack,
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foregroundColor: surfaceWhite,
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elevation: 0,
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shadowColor: shadowDark,
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surfaceTintColor: Colors.transparent,
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titleTextStyle: GoogleFonts.roboto(
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fontSize: 20,
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fontWeight: FontWeight.w500,
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color: surfaceWhite,
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),
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iconTheme: const IconThemeData(
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color: surfaceWhite,
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size: 24,
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),
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),
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cardTheme: CardThemeData(
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color: Color(0xFF1F2937),
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elevation: 2.0,
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shadowColor: shadowDark,
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surfaceTintColor: Colors.transparent,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(12.0),
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),
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margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
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),
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bottomNavigationBarTheme: BottomNavigationBarThemeData(
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backgroundColor: primaryBlack,
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selectedItemColor: accentYellow,
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unselectedItemColor: textMediumEmphasisDark,
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type: BottomNavigationBarType.fixed,
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elevation: 8,
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selectedLabelStyle: GoogleFonts.openSans(
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fontSize: 12,
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fontWeight: FontWeight.w600,
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),
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unselectedLabelStyle: GoogleFonts.openSans(
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fontSize: 12,
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fontWeight: FontWeight.w400,
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),
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),
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floatingActionButtonTheme: const FloatingActionButtonThemeData(
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backgroundColor: accentYellow,
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foregroundColor: primaryBlack,
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elevation: 4.0,
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shape: CircleBorder(),
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),
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elevatedButtonTheme: ElevatedButtonThemeData(
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style: ElevatedButton.styleFrom(
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foregroundColor: primaryBlack,
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backgroundColor: accentYellow,
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elevation: 0,
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padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 16),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(8.0),
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),
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textStyle: GoogleFonts.openSans(
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fontSize: 16,
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fontWeight: FontWeight.w600,
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),
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),
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),
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outlinedButtonTheme: OutlinedButtonThemeData(
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style: OutlinedButton.styleFrom(
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foregroundColor: accentYellow,
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backgroundColor: Colors.transparent,
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padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 16),
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side: const BorderSide(color: accentYellow, width: 1),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(8.0),
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),
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textStyle: GoogleFonts.openSans(
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fontSize: 16,
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fontWeight: FontWeight.w600,
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),
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),
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),
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textButtonTheme: TextButtonThemeData(
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style: TextButton.styleFrom(
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foregroundColor: accentYellow,
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padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(8.0),
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),
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textStyle: GoogleFonts.openSans(
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fontSize: 16,
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fontWeight: FontWeight.w600,
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),
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),
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),
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textTheme: _buildTextTheme(isLight: false),
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inputDecorationTheme: InputDecorationTheme(
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fillColor: Color(0xFF1F2937),
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filled: true,
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contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 16),
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border: OutlineInputBorder(
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borderRadius: BorderRadius.circular(8.0),
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borderSide: const BorderSide(color: textSecondary, width: 1),
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),
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enabledBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(8.0),
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borderSide: const BorderSide(color: textSecondary, width: 1),
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),
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focusedBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(8.0),
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borderSide: const BorderSide(color: accentYellow, width: 2),
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),
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errorBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(8.0),
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borderSide: const BorderSide(color: errorRed, width: 1),
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),
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focusedErrorBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(8.0),
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borderSide: const BorderSide(color: errorRed, width: 2),
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),
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labelStyle: GoogleFonts.openSans(
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color: textMediumEmphasisDark,
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fontSize: 16,
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fontWeight: FontWeight.w400,
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),
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hintStyle: GoogleFonts.openSans(
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color: textDisabledDark,
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fontSize: 16,
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fontWeight: FontWeight.w400,
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),
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),
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switchTheme: SwitchThemeData(
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thumbColor: WidgetStateProperty.resolveWith((states) {
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if (states.contains(WidgetState.selected)) {
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return accentYellow;
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}
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return textSecondary;
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}),
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trackColor: WidgetStateProperty.resolveWith((states) {
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if (states.contains(WidgetState.selected)) {
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return primaryBlack;
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}
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return textDisabledDark;
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}),
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),
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checkboxTheme: CheckboxThemeData(
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fillColor: WidgetStateProperty.resolveWith((states) {
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if (states.contains(WidgetState.selected)) {
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return accentYellow;
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}
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return Colors.transparent;
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}),
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checkColor: WidgetStateProperty.all(primaryBlack),
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side: const BorderSide(color: textSecondary, width: 1),
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),
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radioTheme: RadioThemeData(
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fillColor: WidgetStateProperty.resolveWith((states) {
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if (states.contains(WidgetState.selected)) {
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return accentYellow;
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}
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return textMediumEmphasisDark;
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}),
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),
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progressIndicatorTheme: const ProgressIndicatorThemeData(
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color: accentYellow,
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linearTrackColor: textSecondary,
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),
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sliderTheme: SliderThemeData(
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activeTrackColor: accentYellow,
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thumbColor: accentYellow,
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overlayColor: accentYellow.withValues(alpha: 0.2),
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inactiveTrackColor: textSecondary,
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),
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tabBarTheme: TabBarThemeData(
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labelColor: accentYellow,
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unselectedLabelColor: textMediumEmphasisDark,
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indicatorColor: accentYellow,
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indicatorSize: TabBarIndicatorSize.tab,
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labelStyle: GoogleFonts.roboto(
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fontSize: 16,
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fontWeight: FontWeight.w500,
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),
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unselectedLabelStyle: GoogleFonts.roboto(
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fontSize: 16,
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fontWeight: FontWeight.w400,
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),
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),
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tooltipTheme: TooltipThemeData(
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decoration: BoxDecoration(
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color: surfaceWhite,
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borderRadius: BorderRadius.circular(8),
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),
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textStyle: GoogleFonts.openSans(
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color: primaryBlack,
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fontSize: 14,
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fontWeight: FontWeight.w400,
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),
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),
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snackBarTheme: SnackBarThemeData(
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backgroundColor: surfaceWhite,
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contentTextStyle: GoogleFonts.openSans(
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color: primaryBlack,
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fontSize: 16,
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fontWeight: FontWeight.w400,
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),
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actionTextColor: primaryBlack,
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behavior: SnackBarBehavior.floating,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(8.0),
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),
|
|
elevation: 4,
|
|
), dialogTheme: DialogThemeData(backgroundColor: Color(0xFF1F2937)),
|
|
);
|
|
|
|
/// Helper method to build text theme based on brightness
|
|
/// Uses Google Fonts for optimal Spanish character support and mobile readability
|
|
static TextTheme _buildTextTheme({required bool isLight}) {
|
|
final Color textHighEmphasis =
|
|
isLight ? textHighEmphasisLight : textHighEmphasisDark;
|
|
final Color textMediumEmphasis =
|
|
isLight ? textMediumEmphasisLight : textMediumEmphasisDark;
|
|
final Color textDisabled = isLight ? textDisabledLight : textDisabledDark;
|
|
|
|
return TextTheme(
|
|
// Display styles - Roboto for strong presence
|
|
displayLarge: GoogleFonts.roboto(
|
|
fontSize: 57,
|
|
fontWeight: FontWeight.w700,
|
|
color: textHighEmphasis,
|
|
letterSpacing: -0.25,
|
|
),
|
|
displayMedium: GoogleFonts.roboto(
|
|
fontSize: 45,
|
|
fontWeight: FontWeight.w700,
|
|
color: textHighEmphasis,
|
|
),
|
|
displaySmall: GoogleFonts.roboto(
|
|
fontSize: 36,
|
|
fontWeight: FontWeight.w500,
|
|
color: textHighEmphasis,
|
|
),
|
|
|
|
// Headline styles - Roboto for bus route names and times
|
|
headlineLarge: GoogleFonts.roboto(
|
|
fontSize: 32,
|
|
fontWeight: FontWeight.w500,
|
|
color: textHighEmphasis,
|
|
),
|
|
headlineMedium: GoogleFonts.roboto(
|
|
fontSize: 28,
|
|
fontWeight: FontWeight.w500,
|
|
color: textHighEmphasis,
|
|
),
|
|
headlineSmall: GoogleFonts.roboto(
|
|
fontSize: 24,
|
|
fontWeight: FontWeight.w500,
|
|
color: textHighEmphasis,
|
|
),
|
|
|
|
// Title styles - Roboto for section headers
|
|
titleLarge: GoogleFonts.roboto(
|
|
fontSize: 22,
|
|
fontWeight: FontWeight.w500,
|
|
color: textHighEmphasis,
|
|
letterSpacing: 0,
|
|
),
|
|
titleMedium: GoogleFonts.roboto(
|
|
fontSize: 16,
|
|
fontWeight: FontWeight.w500,
|
|
color: textHighEmphasis,
|
|
letterSpacing: 0.15,
|
|
),
|
|
titleSmall: GoogleFonts.roboto(
|
|
fontSize: 14,
|
|
fontWeight: FontWeight.w500,
|
|
color: textHighEmphasis,
|
|
letterSpacing: 0.1,
|
|
),
|
|
|
|
// Body styles - Open Sans for extended reading
|
|
bodyLarge: GoogleFonts.openSans(
|
|
fontSize: 16,
|
|
fontWeight: FontWeight.w400,
|
|
color: textHighEmphasis,
|
|
letterSpacing: 0.5,
|
|
),
|
|
bodyMedium: GoogleFonts.openSans(
|
|
fontSize: 14,
|
|
fontWeight: FontWeight.w400,
|
|
color: textHighEmphasis,
|
|
letterSpacing: 0.25,
|
|
),
|
|
bodySmall: GoogleFonts.openSans(
|
|
fontSize: 12,
|
|
fontWeight: FontWeight.w400,
|
|
color: textMediumEmphasis,
|
|
letterSpacing: 0.4,
|
|
),
|
|
|
|
// Label styles - Inter for captions and small text
|
|
labelLarge: GoogleFonts.inter(
|
|
fontSize: 14,
|
|
fontWeight: FontWeight.w500,
|
|
color: textHighEmphasis,
|
|
letterSpacing: 0.1,
|
|
),
|
|
labelMedium: GoogleFonts.inter(
|
|
fontSize: 12,
|
|
fontWeight: FontWeight.w500,
|
|
color: textMediumEmphasis,
|
|
letterSpacing: 0.5,
|
|
),
|
|
labelSmall: GoogleFonts.inter(
|
|
fontSize: 11,
|
|
fontWeight: FontWeight.w400,
|
|
color: textDisabled,
|
|
letterSpacing: 0.5,
|
|
),
|
|
);
|
|
}
|
|
}
|