initial: Backend Auth Module + Design System + Complete Documentation

- Setup NestJS with TypeScript, ConfigModule, JWT authentication - Implemented Auth Module with signup, login, logout endpoints - Created DTOs with validation (SignupDto, LoginDto) - JWT Strategy with Passport integration for token validation - JwtAuthGuard for route protection with Bearer tokens - CurrentUser decorator for dependency injection - Supabase integration for user management and auth - Complete API documentation (API.md) with all endpoints - Design System for Web (Next.js + Tailwind) and Mobile (Flutter) - Comprehensive project documentation and roadmap - Environment configuration with Joi schema validation - Ready for Tasks Module and RLS implementation
2025-12-01 01:17:00 -03:00
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+# 🎨 TASK MANAGER - Design System & Guia de Interface
+
+## 🌈 Paleta de Cores
+
+### Cores Principais
+- **Primary (Azul)**: `#2563EB` - Ações principais, links, seleção
+- **Primary Dark**: `#1D4ED8` - Estados hover/ativo
+- **Primary Light**: `#DBEAFE` - Backgrounds, estados desabilitados
+- **White**: `#FFFFFF` - Backgrounds principal
+- **Black**: `#000000` - Texto principal, contrastes fortes
+- **Gray 50**: `#F9FAFB` - Backgrounds secundários
+- **Gray 100**: `#F3F4F6` - Borders leves
+- **Gray 200**: `#E5E7EB` - Borders padrão
+- **Gray 400**: `#9CA3AF` - Texto secundário, placeholders
+- **Gray 600**: `#4B5563` - Texto terciário
+
+### Cores de Status
+- **Success**: `#10B981` - Tarefas concluídas
+- **Warning**: `#F59E0B` - Alertas
+- **Error**: `#EF4444` - Erros, deletar
+- **Info**: `#06B6D4` - Informações
+
+---
+
+## 🔤 Tipografia (Google Fonts)
+
+### Fonte Principal: **Inter**
+- Link: https://fonts.google.com/specimen/Inter
+- Uso: Corpo de texto, UI, labels
+
+### Fonte Secundária: **Poppins**
+- Link: https://fonts.google.com/specimen/Poppins
+- Uso: Títulos, headings, destaque
+
+### Escala Tipográfica
+
+| Nome | Tamanho | Weight | Line Height | Letra-espaçamento | Uso |
+|------|---------|--------|-------------|------------------|-----|
+| **H1** | 32px | 700 (Bold) | 40px | -0.5px | Títulos principais |
+| **H2** | 24px | 700 (Bold) | 32px | -0.3px | Subtítulos |
+| **H3** | 18px | 600 (SemiBold) | 28px | -0.2px | Seções |
+| **Body Large** | 16px | 400 (Regular) | 24px | 0px | Texto principal |
+| **Body Normal** | 14px | 400 (Regular) | 22px | 0px | Descrições |
+| **Body Small** | 12px | 400 (Regular) | 18px | 0.2px | Ajuda, captions |
+| **Label** | 12px | 600 (SemiBold) | 18px | 0.5px | Labels de campos |
+| **Button** | 14px | 600 (SemiBold) | 20px | 0.5px | Texto de botões |
+
+### Importação no CSS/Next.js
+```css
+@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Poppins:wght@600;700&display=swap');
+
+:root {
+  --font-inter: 'Inter', sans-serif;
+  --font-poppins: 'Poppins', sans-serif;
+}
+```
+
+---
+
+## 🎯 Espaçamento (8px Base)
+
+Seguindo o padrão Material Design + Tailwind, usando múltiplos de 8px:
+
+| Token | Valor | Uso |
+|-------|-------|-----|
+| **xs** | 4px | Micro-espaçamentos |
+| **sm** | 8px | Padding pequeno |
+| **md** | 12px | Padding padrão |
+| **lg** | 16px | Espaçamento interno |
+| **xl** | 24px | Separação entre elementos |
+| **2xl** | 32px | Separação entre seções |
+| **3xl** | 48px | Grandes divisores |
+| **4xl** | 64px | Muito grandes |
+
+### Exemplos de Aplicação
+- **Padding de Botão**: 12px (vertical) × 16px (horizontal)
+- **Padding de Card**: 24px
+- **Gap entre inputs**: 16px
+- **Margin entre seções**: 32px
+
+---
+
+## 🎨 Componentes - Design System
+
+### 1️⃣ **BOTÕES**
+
+#### Botão Primary (Padrão)
+```
+Tamanho: 48px altura
+Padding: 12px vertical × 16px horizontal
+Background: #2563EB
+Text: White, 14px Bold
+Border Radius: 8px
+Font Weight: 600
+```
+
+**Estados:**
+- **Default**: Background #2563EB
+- **Hover**: Background #1D4ED8, Sombra leve
+- **Active**: Background #1D4ED8, sem sombra
+- **Disabled**: Background #E5E7EB, Text #9CA3AF, sem cursor
+
+#### Botão Secondary
+```
+Background: #F3F4F6
+Text: #000000, 14px Bold
+Border: 1px #E5E7EB
+Border Radius: 8px
+```
+
+#### Botão Tertiary (Text only)
+```
+Background: transparent
+Text: #2563EB, 14px Bold
+Padding: 12px 16px
+```
+
+#### Botão Danger
+```
+Background: #EF4444
+Text: White, 14px Bold
+Sombra: 0px 4px 12px rgba(239, 68, 68, 0.2)
+```
+
+#### Botão com Ícone
+```
+Spacing entre ícone e texto: 8px
+Ícone tamanho: 20px × 20px
+```
+
+---
+
+### 2️⃣ **CAMPOS DE ENTRADA (Inputs)**
+
+#### Input Padrão
+```
+Altura: 44px
+Padding: 12px 16px
+Border: 1px #E5E7EB
+Border Radius: 8px
+Font: Inter 14px
+Background: #FFFFFF
+```
+
+**Estados:**
+- **Default**: Border #E5E7EB, Background #FFFFFF
+- **Focus**: Border #2563EB (2px), Background #FFFFFF, Box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1)
+- **Filled**: Border #2563EB
+- **Error**: Border #EF4444, Background #FEF2F2
+- **Disabled**: Border #E5E7EB, Background #F9FAFB, Text #9CA3AF
+
+#### Placeholder
+```
+Color: #9CA3AF
+Font Style: Regular
+```
+
+#### Label
+```
+Font: Poppins 12px SemiBold
+Color: #000000
+Margin Bottom: 8px
+Required indicator (*): Color #EF4444
+```
+
+#### Help Text
+```
+Font: Inter 12px Regular
+Color: #6B7280
+Margin Top: 4px
+```
+
+#### Error Message
+```
+Font: Inter 12px Regular
+Color: #EF4444
+Icon: 16px × 16px (⚠️)
+Margin Top: 4px
+```
+
+---
+
+### 3️⃣ **CARDS**
+
+```
+Background: #FFFFFF
+Border: 1px #E5E7EB
+Border Radius: 12px
+Padding: 24px
+Box Shadow: 0px 1px 3px rgba(0, 0, 0, 0.1)
+```
+
+**Hover (Interactive):**
+```
+Box Shadow: 0px 4px 12px rgba(0, 0, 0, 0.08)
+Transition: 150ms
+```
+
+#### Task Card
+```
+Padding: 16px
+Border Radius: 12px
+Background: #FFFFFF
+Border: 1px #E5E7EB
+
+Estrutura:
+├── Checkbox (20px × 20px)
+├── Conteúdo (Flex: 1)
+│   ├── Título: 14px Bold, #000000
+│   └── Descrição: 13px Regular, #6B7280
+└── Menu/Delete: 24px × 24px (Right)
+
+Spacing: 12px entre elementos
+```
+
+---
+
+### 4️⃣ **CHECKBOX & RADIO**
+
+#### Checkbox
+```
+Tamanho: 20px × 20px
+Border: 2px #E5E7EB
+Border Radius: 4px
+Background: #FFFFFF
+Padding: 2px (interno)
+```
+
+**Estados:**
+- **Unchecked**: Border #E5E7EB, Background #FFFFFF
+- **Checked**: Border #2563EB, Background #2563EB, Ícone ✓ branco
+- **Focus**: Box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1)
+- **Disabled**: Border #E5E7EB, Background #F3F4F6
+
+---
+
+### 5️⃣ **TABS**
+
+```
+Height: 48px
+Font: Inter 14px SemiBold
+Color: #6B7280 (inactive), #2563EB (active)
+Border Bottom: 2px #2563EB (active)
+Padding: 16px horizontal
+```
+
+---
+
+### 6️⃣ **MODALS/DIALOGS**
+
+```
+Background: #FFFFFF
+Border Radius: 16px
+Padding: 32px
+Width: 90% (mobile), 520px (desktop)
+Max Height: 90vh
+Box Shadow: 0px 20px 25px rgba(0, 0, 0, 0.15)
+Overlay: rgba(0, 0, 0, 0.5)
+```
+
+**Estrutura:**
+```
+├── Header
+│   ├── Título: H2
+│   └── Close button: 24px (top right)
+├── Content
+│   └── Padding: 24px 0
+└── Footer (Actions)
+    ├── Button Secondary (Cancel): Left
+    └── Button Primary (Confirm): Right
+    └── Spacing: 12px entre botões
+```
+
+---
+
+### 7️⃣ **ÍCONES (Google Icons)**
+
+Link: https://fonts.google.com/icons
+
+**Tamanhos Padrão:**
+- **Small**: 16px - Lado de inputs, help text
+- **Normal**: 20px - Ícones em botões, menus
+- **Large**: 24px - Ícones principais, headers
+- **XL**: 32px - Ícones de estado vazio, sucesso
+
+**Cor Principal**: #2563EB
+**Cor Secundária**: #6B7280
+**Cor Erro**: #EF4444
+
+**Ícones Recomendados:**
+- check_circle (Concluído)
+- radio_button_unchecked (Não concluído)
+- delete (Deletar)
+- edit (Editar)
+- close (Fechar)
+- menu (Menu)
+- search (Buscar)
+- add (Adicionar)
+- logout (Sair)
+- login (Entrar)
+- person (Perfil)
+- error (Erro)
+- warning (Aviso)
+- info (Info)
+
+---
+
+## 📱 **NEXT.JS - Estrutura de Componentes**
+
+### Diretório
+```
+frontend-next/
+├── src/
+│   ├── components/
+│   │   ├── ui/
+│   │   │   ├── Button.tsx
+│   │   │   ├── Input.tsx
+│   │   │   ├── Card.tsx
+│   │   │   ├── Checkbox.tsx
+│   │   │   ├── Modal.tsx
+│   │   │   ├── Toast.tsx
+│   │   │   └── Spinner.tsx
+│   │   ├── forms/
+│   │   │   ├── TaskForm.tsx
+│   │   │   ├── LoginForm.tsx
+│   │   │   └── SignupForm.tsx
+│   │   ├── tasks/
+│   │   │   ├── TaskItem.tsx
+│   │   │   ├── TaskList.tsx
+│   │   │   └── TaskFilters.tsx
+│   │   ├── layout/
+│   │   │   ├── Header.tsx
+│   │   │   ├── Sidebar.tsx
+│   │   │   └── Footer.tsx
+│   │   └── common/
+│   │       ├── EmptyState.tsx
+│   │       └── LoadingState.tsx
+│   ├── lib/
+│   │   ├── styles/
+│   │   │   ├── colors.ts
+│   │   │   ├── spacing.ts
+│   │   │   ├── typography.ts
+│   │   │   └── shadows.ts
+│   │   └── utils.ts
+│   ├── app/
+│   │   ├── globals.css
+│   │   ├── layout.tsx
+│   │   ├── page.tsx
+│   │   ├── (auth)/
+│   │   │   ├── login/page.tsx
+│   │   │   └── signup/page.tsx
+│   │   └── (dashboard)/
+│   │       └── tasks/page.tsx
+│   └── styles/
+│       └── tailwind.config.ts
+```
+
+### Configuração Tailwind (tailwind.config.ts)
+```typescript
+import type { Config } from 'tailwindcss'
+
+export default {
+  content: [
+    './src/pages/**/*.{js,ts,jsx,tsx,mdx}',
+    './src/components/**/*.{js,ts,jsx,tsx,mdx}',
+    './src/app/**/*.{js,ts,jsx,tsx,mdx}',
+  ],
+  theme: {
+    extend: {
+      colors: {
+        primary: {
+          DEFAULT: '#2563EB',
+          dark: '#1D4ED8',
+          light: '#DBEAFE',
+        },
+        gray: {
+          50: '#F9FAFB',
+          100: '#F3F4F6',
+          200: '#E5E7EB',
+          400: '#9CA3AF',
+          600: '#4B5563',
+        },
+        status: {
+          success: '#10B981',
+          warning: '#F59E0B',
+          error: '#EF4444',
+          info: '#06B6D4',
+        },
+      },
+      fontFamily: {
+        inter: ['var(--font-inter)', 'sans-serif'],
+        poppins: ['var(--font-poppins)', 'sans-serif'],
+      },
+      fontSize: {
+        'h1': ['32px', { lineHeight: '40px', fontWeight: '700', letterSpacing: '-0.5px' }],
+        'h2': ['24px', { lineHeight: '32px', fontWeight: '700', letterSpacing: '-0.3px' }],
+        'h3': ['18px', { lineHeight: '28px', fontWeight: '600', letterSpacing: '-0.2px' }],
+        'body-lg': ['16px', { lineHeight: '24px', fontWeight: '400' }],
+        'body': ['14px', { lineHeight: '22px', fontWeight: '400' }],
+        'body-sm': ['12px', { lineHeight: '18px', fontWeight: '400', letterSpacing: '0.2px' }],
+        'label': ['12px', { lineHeight: '18px', fontWeight: '600', letterSpacing: '0.5px' }],
+        'btn': ['14px', { lineHeight: '20px', fontWeight: '600', letterSpacing: '0.5px' }],
+      },
+      spacing: {
+        'xs': '4px',
+        'sm': '8px',
+        'md': '12px',
+        'lg': '16px',
+        'xl': '24px',
+        '2xl': '32px',
+        '3xl': '48px',
+        '4xl': '64px',
+      },
+      borderRadius: {
+        'sm': '4px',
+        'md': '8px',
+        'lg': '12px',
+        'xl': '16px',
+      },
+      boxShadow: {
+        'sm': '0px 1px 3px rgba(0, 0, 0, 0.1)',
+        'md': '0px 4px 12px rgba(0, 0, 0, 0.08)',
+        'lg': '0px 20px 25px rgba(0, 0, 0, 0.15)',
+        'focus': '0 0 0 3px rgba(37, 99, 235, 0.1)',
+      },
+    },
+  },
+  plugins: [],
+} satisfies Config
+```
+
+---
+
+## 🚀 **FLUTTER - Design System**
+
+### Diretório
+```
+mobile/
+├── lib/
+│   ├── config/
+│   │   ├── theme.dart
+│   │   ├── colors.dart
+│   │   ├── typography.dart
+│   │   └── spacing.dart
+│   ├── widgets/
+│   │   ├── buttons/
+│   │   │   ├── primary_button.dart
+│   │   │   ├── secondary_button.dart
+│   │   │   └── tertiary_button.dart
+│   │   ├── inputs/
+│   │   │   ├── text_input.dart
+│   │   │   ├── checkbox_input.dart
+│   │   │   └── form_field.dart
+│   │   ├── cards/
+│   │   │   ├── task_card.dart
+│   │   │   └── card.dart
+│   │   ├── common/
+│   │   │   ├── modal.dart
+│   │   │   ├── empty_state.dart
+│   │   │   └── loading_state.dart
+│   │   └── app/
+│   │       ├── app_bar.dart
+│   │       └── bottom_nav.dart
+│   ├── screens/
+│   │   ├── auth/
+│   │   │   ├── login_screen.dart
+│   │   │   └── signup_screen.dart
+│   │   ├── tasks/
+│   │   │   ├── tasks_screen.dart
+│   │   │   ├── task_detail_screen.dart
+│   │   │   └── create_task_screen.dart
+│   │   └── profile/
+│   │       └── profile_screen.dart
+│   └── main.dart
+```
+
+### Colors (colors.dart)
+```dart
+abstract class AppColors {
+  // Primary
+  static const Color primary = Color(0xFF2563EB);
+  static const Color primaryDark = Color(0xFF1D4ED8);
+  static const Color primaryLight = Color(0xFFDBEAFE);
+
+  // Base
+  static const Color white = Color(0xFFFFFFFF);
+  static const Color black = Color(0xFF000000);
+
+  // Gray
+  static const Color gray50 = Color(0xFFF9FAFB);
+  static const Color gray100 = Color(0xFFF3F4F6);
+  static const Color gray200 = Color(0xFFE5E7EB);
+  static const Color gray400 = Color(0xFF9CA3AF);
+  static const Color gray600 = Color(0xFF4B5563);
+
+  // Status
+  static const Color success = Color(0xFF10B981);
+  static const Color warning = Color(0xFFF59E0B);
+  static const Color error = Color(0xFFEF4444);
+  static const Color info = Color(0xFF06B6D4);
+}
+```
+
+### Theme (theme.dart)
+```dart
+import 'package:flutter/material.dart';
+import 'colors.dart';
+
+final ThemeData appTheme = ThemeData(
+  useMaterial3: true,
+  colorScheme: ColorScheme(
+    brightness: Brightness.light,
+    primary: AppColors.primary,
+    onPrimary: AppColors.white,
+    secondary: AppColors.gray600,
+    onSecondary: AppColors.white,
+    error: AppColors.error,
+    onError: AppColors.white,
+    background: AppColors.white,
+    onBackground: AppColors.black,
+    surface: AppColors.white,
+    onSurface: AppColors.black,
+  ),
+  fontFamily: 'Inter',
+  textTheme: TextTheme(
+    displayLarge: TextStyle(
+      fontSize: 32,
+      fontWeight: FontWeight.w700,
+      letterSpacing: -0.5,
+      fontFamily: 'Poppins',
+    ),
+    displayMedium: TextStyle(
+      fontSize: 24,
+      fontWeight: FontWeight.w700,
+      letterSpacing: -0.3,
+      fontFamily: 'Poppins',
+    ),
+    headlineSmall: TextStyle(
+      fontSize: 18,
+      fontWeight: FontWeight.w600,
+      letterSpacing: -0.2,
+      fontFamily: 'Poppins',
+    ),
+    bodyLarge: TextStyle(
+      fontSize: 16,
+      fontWeight: FontWeight.w400,
+      height: 1.5,
+    ),
+    bodyMedium: TextStyle(
+      fontSize: 14,
+      fontWeight: FontWeight.w400,
+      height: 1.57,
+    ),
+    bodySmall: TextStyle(
+      fontSize: 12,
+      fontWeight: FontWeight.w400,
+      letterSpacing: 0.2,
+      height: 1.5,
+    ),
+    labelMedium: TextStyle(
+      fontSize: 12,
+      fontWeight: FontWeight.w600,
+      letterSpacing: 0.5,
+    ),
+  ),
+);
+```
+
+### Spacing (spacing.dart)
+```dart
+abstract class AppSpacing {
+  static const double xs = 4.0;
+  static const double sm = 8.0;
+  static const double md = 12.0;
+  static const double lg = 16.0;
+  static const double xl = 24.0;
+  static const double xxl = 32.0;
+  static const double xxxl = 48.0;
+  static const double xxxxl = 64.0;
+}
+```
+
+### Exemplo de Componente - Primary Button
+```dart
+class PrimaryButton extends StatelessWidget {
+  final String label;
+  final VoidCallback onPressed;
+  final bool isLoading;
+  final bool isEnabled;
+  final IconData? icon;
+
+  const PrimaryButton({
+    required this.label,
+    required this.onPressed,
+    this.isLoading = false,
+    this.isEnabled = true,
+    this.icon,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return ElevatedButton(
+      onPressed: isEnabled && !isLoading ? onPressed : null,
+      style: ElevatedButton.styleFrom(
+        backgroundColor: AppColors.primary,
+        disabledBackgroundColor: AppColors.gray200,
+        padding: EdgeInsets.symmetric(
+          vertical: AppSpacing.md,
+          horizontal: AppSpacing.lg,
+        ),
+        shape: RoundedRectangleBorder(
+          borderRadius: BorderRadius.circular(8),
+        ),
+        elevation: 0,
+      ),
+      child: isLoading
+          ? SizedBox(
+              height: 20,
+              width: 20,
+              child: CircularProgressIndicator(
+                strokeWidth: 2,
+                valueColor: AlwaysStoppedAnimation<Color>(
+                  isEnabled ? AppColors.white : AppColors.gray400,
+                ),
+              ),
+            )
+          : Row(
+              mainAxisSize: MainAxisSize.min,
+              children: [
+                if (icon != null) ...[
+                  Icon(icon, size: 20),
+                  SizedBox(width: AppSpacing.sm),
+                ],
+                Text(label),
+              ],
+            ),
+    );
+  }
+}
+```
+
+---
+
+## 🎯 **PADRÕES DE LAYOUT**
+
+### Responsividade Next.js
+
+```
+Mobile: < 640px (default)
+Tablet: 640px - 1024px
+Desktop: > 1024px
+```
+
+### Breakpoints (Tailwind)
+```typescript
+sm: '640px'
+md: '768px'
+lg: '1024px'
+xl: '1280px'
+2xl: '1536px'
+```
+
+### Safe Area (Flutter)
+```dart
+Scaffold(
+  body: SafeArea(
+    child: SingleChildScrollView(
+      padding: EdgeInsets.all(AppSpacing.lg),
+      child: YourContent(),
+    ),
+  ),
+)
+```
+
+---
+
+## 📐 **ANIMAÇÕES & TRANSIÇÕES**
+
+### Next.js (Tailwind)
+```
+Duration padrão: 150ms
+Easing: cubic-bezier(0.4, 0, 0.2, 1)
+Propriedades: transform, opacity, color, box-shadow
+```
+
+**Exemplo:**
+```css
+.button {
+  @apply transition-all duration-150 ease-in-out;
+}
+
+.button:hover {
+  @apply scale-105 shadow-md;
+}
+```
+
+### Flutter
+```dart
+Duration animationDuration = Duration(milliseconds: 150);
+Curve animationCurve = Curves.easeInOut;
+```
+
+---
+
+## ✅ **ACESSIBILIDADE**
+
+### Contraste de Cores (WCAG AA)
+- Ratio mínimo: 4.5:1 para textos normais
+- Ratio mínimo: 3:1 para textos grandes
+
+### Next.js
+- Usar `<label htmlFor="">` para inputs
+- Alt text em imagens
+- Semantic HTML (button, form, etc)
+
+### Flutter
+- Semantics widget para leitura de tela
+- Sufficient touch targets (mínimo 48x48 dp)
+
+---
+
+## 📋 **CHECKLIST DE DESIGN**
+
+- [ ] Cores aplicadas conforme paleta
+- [ ] Tipografia usando Inter e Poppins
+- [ ] Espaçamento em múltiplos de 8px
+- [ ] Componentes com 4 estados (default, hover, active, disabled)
+- [ ] Ícones do Google Icons (20px padrão)
+- [ ] Botões com altura mínima de 48px
+- [ ] Inputs com altura de 44px
+- [ ] Cards com border-radius 12px
+- [ ] Box shadows consistentes
+- [ ] Responsive design funcional
+- [ ] Acessibilidade testada
+- [ ] Loading states em todas as ações
+- [ ] Error states claros
+- [ ] Empty states amigáveis
+
+---
+
+## 🔗 **REFERÊNCIAS & RECURSOS**
+
+### Ferramentas
+- **Figma**: Para prototipar (opcional)
+- **Google Fonts**: https://fonts.google.com
+- **Google Icons**: https://fonts.google.com/icons
+- **Color Checker**: https://webaim.org/resources/contrastchecker/
+
+### Documentação
+- **Tailwind CSS**: https://tailwindcss.com/docs
+- **Next.js**: https://nextjs.org/docs
+- **Flutter**: https://flutter.dev/docs
+- **Material Design 3**: https://m3.material.io/
+
+---
+
+## 💾 **IMPLEMENTAÇÃO IMEDIATA**
+
+### Next.js - Setup Inicial
+1. Configurar Tailwind config com tokens
+2. Criar componentes base (Button, Input, Card)
+3. Importar Google Fonts em globals.css
+4. Testar componentes em storybook (opcional)
+
+### Flutter - Setup Inicial
+1. Adicionar Google Fonts package
+2. Criar arquivos de theme
+3. Implementar componentes customizados
+4. Testar em multiple devices
+
+---
+
+**Mantém Fidelidade ao Design em TODAS as screens! 🎯**