/* ========================================
   VARIÁVEIS DE DESIGN (Design System) - ImersaLab
   ======================================== */
:root {
  /* Cores - Paleta Azul e Laranja */
  --color-blue-dark: #1E3A8A;
  --color-blue-light: #F1F5F9;
  --color-blue-medium: #3B82F6;
  --color-orange-primary: #F97316;
  --color-orange-hover: #EA580C;
  --color-gray-dark: #1F2937;
  --color-gray-medium: #6B7280;
  --color-gray-light: #F3F4F6;
  --color-white: #FFFFFF;
  --color-error: #DC2626;
  --color-success: #10B981;

  /* Tipografia */
  --font-family: 'Inter', 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-base: 16px;
  --font-size-sm: 14px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-2xl: 24px;
  --font-size-3xl: 32px;
  --font-size-4xl: 40px;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Espaçamento (Sistema reduzido) */
  --spacing-xs: 4px;
  --spacing-sm: 6px;
  --spacing-md: 12px;
  --spacing-lg: 18px;
  --spacing-xl: 16px;
  --spacing-2xl: 24px;
  --spacing-3xl: 32px;

  /* Bordas e Sombras */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  --border-radius-xl: 16px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);

  /* Transições */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;

  /* Z-index */
  --z-mobile-menu: 1000;
  --z-modal: 1001;
  --z-tooltip: 1002;
}

/* ========================================
   RESET E ESTILOS BASE
   ======================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 14px;
}

@media (min-width: 480px) {
  html {
    font-size: 15px;
  }
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

body {
  font-family: var(--font-family);
  color: var(--color-gray-dark);
  background-color: var(--color-white);
  line-height: 1.6;
  font-weight: var(--font-weight-regular);
}

/* ========================================
   TIPOGRAFIA
   ======================================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
  color: var(--color-blue-dark);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: 28px;
}

@media (min-width: 480px) {
  h1 {
    font-size: 32px;
  }
}

@media (min-width: 768px) {
  h1 {
    font-size: var(--font-size-4xl);
  }
}

h2 {
  font-size: 22px;
}

@media (min-width: 480px) {
  h2 {
    font-size: 26px;
  }
}

@media (min-width: 768px) {
  h2 {
    font-size: var(--font-size-3xl);
  }
}

h3 {
  font-size: var(--font-size-2xl);
}

h4 {
  font-size: var(--font-size-xl);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-gray-dark);
}

a {
  color: var(--color-orange-primary);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-orange-hover);
  text-decoration: underline;
}

/* ========================================
   COMPONENTES - BOTÕES
   ======================================== */
.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  text-align: center;
  border: none;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-orange-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background-color: var(--color-orange-hover);
  color: var(--color-white);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: var(--color-white);
  color: var(--color-blue-dark);
  border: 2px solid var(--color-blue-dark);
}

.btn-secondary:hover {
  background-color: var(--color-blue-dark);
  color: var(--color-white);
  border-color: var(--color-blue-dark);
  box-shadow: var(--shadow-md);
}

.btn-sm {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
}

/* ========================================
   HEADER E NAVEGAÇÃO
   ======================================== */
header {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-gray-light);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

@media (min-width: 480px) {
  .header-container {
    padding: var(--spacing-md);
  }
}

.logo {
  font-size: 16px;
  font-weight: var(--font-weight-bold);
  color: var(--color-blue-dark);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

@media (min-width: 480px) {
  .logo {
    font-size: var(--font-size-xl);
  }
}

.logo-icon {
  width: 32px;
  height: 32px;
  background-color: var(--color-orange-primary);
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-weight: var(--font-weight-bold);
}

.logo-image {
  height: 72px;
  width: auto;
  max-width: 280px;
  object-fit: contain;
}

/* Mobile Logo */
@media (max-width: 767px) {
  .logo-image {
    height: 56px;
    max-width: 240px;
  }
}

/* Menu de Hambúrguer (Mobile) */
.hamburger {
  display: flex;
  flex-direction: column;
  cursor: pointer;
  gap: 6px;
  background: none;
  border: none;
  padding: var(--spacing-sm);
}

.hamburger span {
  width: 24px;
  height: 2px;
  background-color: var(--color-blue-dark);
  transition: all var(--transition-base);
  border-radius: 1px;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* Navegação */
nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-gray-light);
  box-shadow: var(--shadow-md);
}

nav.active {
  display: block;
}

nav ul {
  list-style: none;
  display: flex;
  flex-direction: column;
}

nav li {
  border-bottom: 1px solid var(--color-gray-light);
}

nav a {
  display: block;
  padding: var(--spacing-md) var(--spacing-lg);
  color: var(--color-gray-dark);
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-base);
}

nav a:hover {
  background-color: var(--color-blue-light);
  color: var(--color-blue-dark);
  text-decoration: none;
}

nav a.active {
  color: var(--color-orange-primary);
  border-left: 4px solid var(--color-orange-primary);
  background-color: var(--color-blue-light);
}

/* Desktop Navigation */
@media (min-width: 768px) {
  .hamburger {
    display: none;
  }

  nav {
    display: block !important;
    position: static;
    background-color: transparent;
    border: none;
    box-shadow: none;
  }

  nav ul {
    flex-direction: row;
    gap: var(--spacing-lg);
  }

  nav li {
    border-bottom: none;
  }

  nav a {
    padding: var(--spacing-md) 0;
    border-bottom: 3px solid transparent;
  }

  nav a:hover {
    background-color: transparent;
    border-bottom-color: var(--color-orange-primary);
  }

  nav a.active {
    border-left: none;
    border-bottom-color: var(--color-orange-primary);
    background-color: transparent;
  }
}

/* ========================================
   SEÇÕES PRINCIPAIS
   ======================================== */
main {
  min-height: calc(100vh - 200px);
}

section {
  padding: var(--spacing-2xl) var(--spacing-md);
}

@media (min-width: 480px) {
  section {
    padding: var(--spacing-2xl) var(--spacing-lg);
  }
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  width: 100%;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, rgba(255, 115, 0, 0.4) 0%, rgba(0, 89, 255, 0.3) 100%), 
              url('https://res.cloudinary.com/duay00cii/image/upload/v1771597674/campus-ceres-aereo-preview_edovrn.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: scroll;
  padding: var(--spacing-2xl) var(--spacing-md);
  text-align: center;
  animation: fadeIn var(--transition-slow);
  position: relative;
  min-height: 350px;
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (min-width: 480px) {
  .hero {
    padding: var(--spacing-3xl) var(--spacing-lg);
    min-height: 400px;
  }
}

@media (min-width: 768px) {
  .hero {
    min-height: 500px;
  }
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.2);
  z-index: 0;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-content h1 {
  color: var(--color-white);
  margin-bottom: var(--spacing-lg);
  font-size: 24px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

@media (min-width: 480px) {
  .hero-content h1 {
    font-size: 28px;
  }
}

@media (min-width: 768px) {
  .hero-content h1 {
    font-size: var(--font-size-3xl);
  }
}

.hero-content p {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: var(--spacing-xl);
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  justify-content: center;
  align-items: center;
}

@media (min-width: 768px) {
  .hero-buttons {
    flex-direction: row;
  }

  .hero-content h1 {
    font-size: var(--font-size-4xl);
  }
}

/* ========================================
   CARDS E GRIDS
   ======================================== */
.cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.contact-cards-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-lg);
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.contact-cards-grid .info-card {
  flex: 1 1 340px;
  max-width: 380px;
}

@media (min-width: 480px) {
  .cards-grid {
    gap: var(--spacing-lg);
  }
}

@media (min-width: 768px) {
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .cards-grid.contact-cards-grid {
    grid-template-columns: repeat(2, minmax(320px, 1fr));
  }
}

@media (min-width: 1024px) {
  .cards-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.arquitetura-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

@media (min-width: 768px) {
  .arquitetura-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.arquitetura-box {
  background-color: var(--color-white);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--color-gray-light);
  box-shadow: var(--shadow-sm);
}

.arquitetura-box h4 {
  margin-bottom: var(--spacing-md);
}

.code-block {
  background-color: #111827;
  color: #10B981;
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.6;
  white-space: pre-wrap;
}

.camadas-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

@media (min-width: 480px) {
  .camadas-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.camada-item {
  padding: var(--spacing-md);
  border-radius: var(--border-radius-md);
  color: var(--color-white);
}

.camada-frontend {
  background-color: #1E3A8A;
}

.camada-logica {
  background-color: #3B82F6;
}

.camada-dados {
  background-color: #F97316;
}

.camada-vr {
  background-color: #10B981;
}

.card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.card-image {
  width: 100%;
  height: 150px;
  object-fit: cover;
  background-color: var(--color-gray-light);
}

@media (min-width: 480px) {
  .card-image {
    height: 180px;
  }
}

@media (min-width: 768px) {
  .card-image {
    height: 200px;
  }
}

.card-image-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.card-content {
  padding: var(--spacing-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-title {
  font-size: 16px;
  color: var(--color-blue-dark);
  margin-bottom: var(--spacing-sm);
}

@media (min-width: 480px) {
  .card-title {
    font-size: var(--font-size-xl);
  }
}

.card-category {
  font-size: var(--font-size-sm);
  color: var(--color-orange-primary);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.card-description {
  font-size: var(--font-size-sm);
  color: var(--color-gray-medium);
  margin-bottom: var(--spacing-lg);
  flex: 1;
}

.card-footer {
  margin-top: auto;
}

/* ========================================
   SEÇÕES DE CONTEÚDO
   ======================================== */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section-header h2 {
  margin-bottom: var(--spacing-md);
}

.section-header p {
  font-size: var(--font-size-lg);
  color: var(--color-gray-medium);
}

.section-accent {
  width: 60px;
  height: 4px;
  background-color: var(--color-orange-primary);
  margin: var(--spacing-md) auto var(--spacing-lg);
  border-radius: 2px;
}

/* ========================================
   BLOCOS DE CONTEÚDO
   ======================================== */
.content-block {
  background-color: var(--color-blue-light);
  border-left: 4px solid var(--color-orange-primary);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  margin-bottom: var(--spacing-lg);
}

.content-block h3 {
  margin-bottom: var(--spacing-md);
}

.content-block p {
  margin-bottom: var(--spacing-sm);
}

.content-block p:last-child {
  margin-bottom: 0;
}

/* Listas Estilizadas */
.list-styled {
  list-style: none;
  padding: 0;
}

.list-styled li {
  padding-left: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  position: relative;
}

.list-styled li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-orange-primary);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
}

/* ========================================
   LINHA DO TEMPO
   ======================================== */
.timeline {
  list-style: none;
  padding: var(--spacing-lg) 0;
}

.timeline-item {
  padding-left: calc(var(--spacing-xl) + 18px);
  padding-bottom: var(--spacing-xl);
  position: relative;
}

.timeline-item:not(:last-child)::before {
  content: '';
  position: absolute;
  left: 14px;
  top: 28px;
  bottom: -var(--spacing-xl);
  width: 2px;
  background-color: var(--color-orange-primary);
}

.timeline-marker {
  position: absolute;
  left: 0;
  top: 12px;
  width: 18px;
  height: 18px;
  background-color: var(--color-orange-primary);
  border: 3px solid var(--color-white);
  border-radius: 50%;
  box-shadow: 0 0 0 3px var(--color-orange-primary);
}

.timeline-content {
  margin-left: 4px;
}

.timeline-content h4 {
  color: var(--color-blue-dark);
  margin-bottom: var(--spacing-sm);
}

.timeline-content p {
  color: var(--color-gray-medium);
  font-size: var(--font-size-sm);
}

/* ========================================
   FORMULÁRIOS
   ======================================== */
.form-group {
  margin-bottom: var(--spacing-lg);
}

label {
  display: block;
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-sm);
  color: var(--color-gray-dark);
}

input[type="text"],
input[type="email"],
input[type="tel"],
textarea,
select {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  border: 1px solid var(--color-gray-light);
  border-radius: var(--border-radius-md);
  font-family: var(--font-family);
  font-size: 16px;
  transition: all var(--transition-base);
  color: var(--color-gray-dark);
}

@media (min-width: 768px) {
  input[type="text"],
  input[type="email"],
  input[type="tel"],
  textarea,
  select {
    font-size: var(--font-size-base);
  }
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-orange-primary);
  box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.1);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

.form-submit {
  justify-content: center;
}

/* ========================================
   FOOTER
   ======================================== */
footer {
  background-color: var(--color-blue-dark);
  color: var(--color-white);
  padding: var(--spacing-lg) var(--spacing-md);
  text-align: center;
  margin-top: auto;
}

.footer-content {
  max-width: 900px;
  margin: 0 auto;
  line-height: 1.8;
}

.footer-content p {
  margin: 0;
  color: var(--color-white);
  font-size: var(--font-size-sm);
}

.footer-content strong {
  font-weight: 600;
}

/* ========================================
   UTILITÁRIOS
   ======================================== */
.text-center {
  text-align: center;
}

.text-secondary {
  color: var(--color-gray-medium);
}

.mt-sm {
  margin-top: var(--spacing-sm);
}

.mt-md {
  margin-top: var(--spacing-md);
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

.mt-xl {
  margin-top: var(--spacing-xl);
}

.mb-sm {
  margin-bottom: var(--spacing-sm);
}

.mb-md {
  margin-bottom: var(--spacing-md);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.mb-xl {
  margin-bottom: var(--spacing-xl);
}

/* ========================================
   ANIMAÇÕES
   ======================================== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.fade-in {
  animation: fadeIn var(--transition-base);
}

.slide-in-left {
  animation: slideInLeft var(--transition-base);
}

.slide-in-right {
  animation: slideInRight var(--transition-base);
}

/* ========================================
   ACESSIBILIDADE
   ======================================== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Focus visível para navegação por teclado */
button:focus-visible,
a:focus-visible,
input:focus-visible {
  outline: 2px solid var(--color-orange-primary);
  outline-offset: 2px;
}

/* Garantir visibilidade de botões desabilitados */
button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Melhorar contraste em botões com foco */
.btn:focus-visible {
  color: inherit;
}

/* Contraste adequado */
body {
  color: var(--color-gray-dark);
  background-color: var(--color-white);
}

/* ========================================
   RESPONSIVE - TABLET
   ======================================== */
@media (min-width: 768px) {
  html {
    font-size: 16px;
  }

  section {
    padding: var(--spacing-2xl) var(--spacing-lg);
  }

  .hero {
    padding: var(--spacing-3xl) var(--spacing-xl);
  }

  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }
}

/* ========================================
   RESPONSIVE - DESKTOP
   ======================================== */
@media (min-width: 1024px) {
  html {
    font-size: 16px;
  }

  section {
    padding: var(--spacing-3xl) var(--spacing-2xl);
  }

  .hero {
    padding: 64px 24px;
  }

  .header-container {
    padding: var(--spacing-md) var(--spacing-xl);
  }
}

/* ========================================
   IMPRESSORA (Print)
   ======================================== */
@media print {
  header,
  footer,
  .btn-primary,
  nav {
    display: none;
  }

  body {
    background-color: white;
  }

  section {
    page-break-inside: avoid;
  }
}