import 'package:flutter/material.dart';
import 'app_colors.dart';

class AppTheme {
  static ThemeData get lightTheme {
    return ThemeData(
      useMaterial3: true,
      scaffoldBackgroundColor: AppColors.bgBase,
      primaryColor: AppColors.primaryIndigo,
      colorScheme: ColorScheme.fromSeed(
        seedColor: AppColors.primaryIndigo,
        primary: AppColors.primaryIndigo,
        secondary: AppColors.primaryPurple,
        surface: AppColors.bgBase,
        background: AppColors.bgBase,
      ),
      // We will rely on system fonts for now, to replicate 'Inter' look
      // we can adjust weights later.
      fontFamilyFallback: const [
        'Inter',
        'Roboto',
        'PingFang SC',
        'Helvetica Neue',
      ],

      textTheme: const TextTheme(
        // h1 / Large Headings
        displayLarge: TextStyle(
          color: AppColors.textPrimary,
          fontSize: 32,
          fontWeight: FontWeight.w700, // Bold
          letterSpacing: -0.5,
        ),
        // h2 / Subheadings
        displayMedium: TextStyle(
          color: AppColors.textPrimary,
          fontSize: 24,
          fontWeight: FontWeight.w600, // Semi-bold
        ),
        // Body Text
        bodyLarge: TextStyle(
          color: AppColors.textPrimary,
          fontSize: 16,
          fontWeight: FontWeight.w400, // Normal
          height: 1.5,
        ),
        bodyMedium: TextStyle(
          color: AppColors.textSecondary,
          fontSize: 14,
          fontWeight: FontWeight.w400,
        ),
        // Small captions
        bodySmall: TextStyle(color: AppColors.textLight, fontSize: 12),
        // Button Text
        labelLarge: TextStyle(
          color: Colors.white,
          fontSize: 16,
          fontWeight: FontWeight.w600,
          letterSpacing: 0.5,
        ),
      ),
    );
  }

  // Animation Curves from CSS
  // --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  static const Curve easeSmooth = Cubic(0.4, 0, 0.2, 1);

  // --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  static const Curve easeBounce = Cubic(0.34, 1.56, 0.64, 1);
}