Tricoder/frontend/lib/app/theme/app_theme.dart

import 'package:flutter/material.dart';

class AppTheme {
  static ThemeData light() {
    const canvas = Color(0xFFF3EDE0);
    const primary = Color(0xFF16423C);
    const secondary = Color(0xFFC86B31);
    const accent = Color(0xFF234C63);
    const surface = Color(0xFFFFFBF5);
    const ink = Color(0xFF1F1E1A);

    final colorScheme = ColorScheme.fromSeed(
      seedColor: primary,
      primary: primary,
      secondary: secondary,
      tertiary: accent,
      surface: surface,
      brightness: Brightness.light,
    );

    return ThemeData(
      useMaterial3: true,
      colorScheme: colorScheme,
      scaffoldBackgroundColor: canvas,
      appBarTheme: const AppBarTheme(
        backgroundColor: Colors.transparent,
        foregroundColor: ink,
        elevation: 0,
        centerTitle: false,
      ),
      textTheme: const TextTheme(
        displaySmall: TextStyle(
          fontSize: 34,
          height: 1.05,
          fontWeight: FontWeight.w800,
          color: ink,
        ),
        headlineMedium: TextStyle(
          fontSize: 24,
          height: 1.15,
          fontWeight: FontWeight.w700,
          color: ink,
        ),
        titleLarge: TextStyle(
          fontSize: 20,
          fontWeight: FontWeight.w700,
          color: ink,
        ),
        titleMedium: TextStyle(
          fontSize: 15,
          fontWeight: FontWeight.w700,
          color: ink,
        ),
        bodyLarge: TextStyle(fontSize: 16, height: 1.45, color: ink),
        bodyMedium: TextStyle(
          fontSize: 14,
          height: 1.45,
          color: Color(0xFF4A4A43),
        ),
      ),
      cardTheme: CardThemeData(
        color: surface,
        elevation: 0,
        shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.circular(28),
          side: const BorderSide(color: Color(0xFFD9CEBA)),
        ),
      ),
      filledButtonTheme: FilledButtonThemeData(
        style: FilledButton.styleFrom(
          backgroundColor: primary,
          foregroundColor: Colors.white,
          padding: const EdgeInsets.symmetric(horizontal: 18, vertical: 16),
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(18),
          ),
          textStyle: const TextStyle(fontWeight: FontWeight.w700, fontSize: 15),
        ),
      ),
      outlinedButtonTheme: OutlinedButtonThemeData(
        style: OutlinedButton.styleFrom(
          foregroundColor: primary,
          side: const BorderSide(color: primary),
          padding: const EdgeInsets.symmetric(horizontal: 18, vertical: 16),
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(18),
          ),
          textStyle: const TextStyle(fontWeight: FontWeight.w700, fontSize: 15),
        ),
      ),
    );
  }
}