/* ════════════════════════════════════════════════════════════════════
   AIRE ASSESSORIA - DESIGN SYSTEM
   Paleta exclusiva, tipografia do sistema, grid responsivo
   ════════════════════════════════════════════════════════════════════ */

:root {
  /* Paleta de cores exclusiva */
  --primary-dark: #1a4d7a;
  --primary-main: #2d7ab8;
  --primary-light: #4a93d1;
  --accent-gold: #d4a574;
  --accent-gold-light: #e8c9a3;
  
  --neutral-50: #f8fafc;
  --neutral-100: #f1f5f9;
  --neutral-200: #e2e8f0;
  --neutral-300: #cbd5e1;
  --neutral-400: #94a3b8;
  --neutral-500: #64748b;
  --neutral-600: #475569;
  --neutral-700: #334155;
  --neutral-800: #1e293b;
  --neutral-900: #0f172a;
  
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  
  /* Tipografia do sistema */
  --font-system: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Courier New', monospace;
  
  /* Espaçamento */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  
  /* Bordas */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  /* Sombras */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
  
  /* Layout */
  --container-max: 1280px;
  --content-max: 800px;
}

/* Reset e base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-system);
  line-height: 1.6;
  color: var(--neutral-800);
  background-color: var(--neutral-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Tipografia */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: var(--space-md);
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--space-sm);
  color: var(--neutral-700);
}

a {
  color: var(--primary-main);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--primary-light);
}

/* Container system */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.container-narrow {
  max-width: var(--content-max);
}

/* Header fixo */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--neutral-200);
  z-index: 1000;
  padding: var(--space-sm) 0;
  transition: all 0.3s ease;
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  height: 50px;
  width: auto;
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
}

.main-nav a {
  color: var(--neutral-700);
  font-weight: 500;
  font-size: 0.95rem;
  padding: var(--space-xs) 0;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
}

.main-nav a:hover {
  color: var(--primary-main);
  border-bottom-color: var(--primary-main);
}

/* Menu mobile */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--neutral-700);
  cursor: pointer;
  padding: var(--space-xs);
}

/* Seções */
section {
  padding: var(--space-2xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section-label {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--primary-main);
  margin-bottom: var(--space-sm);
}

.section-title {
  max-width: 800px;
  margin: 0 auto var(--space-md);
}

.section-description {
  max-width: 700px;
  margin: 0 auto;
  font-size: 1.125rem;
  color: var(--neutral-600);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--neutral-50) 0%, var(--neutral-100) 100%);
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('../assets/hero.svg');
  background-size: cover;
  background-position: center;
  opacity: 0.6;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  margin-bottom: var(--space-md);
  line-height: 1.1;
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  color: var(--neutral-600);
  margin-bottom: var(--space-xl);
  font-weight: 400;
}

/* Card system */
.card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  border: 1px solid var(--neutral-200);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  background: linear-gradient(135deg, var(--primary-main), var(--primary-light));
  color: white;
  flex-shrink: 0;
}

.card-title {
  margin: 0;
  font-size: 1.25rem;
}

.card-content p {
  color: var(--neutral-600);
  line-height: 1.7;
}

/* Grid layouts */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
}

/* Alert boxes */
.alert {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  border-left: 4px solid;
  margin-bottom: var(--space-md);
}

.alert-warning {
  background: #fffbeb;
  border-color: var(--warning);
  color: #92400e;
}

.alert-info {
  background: #eff6ff;
  border-color: var(--primary-main);
  color: #1e40af;
}

.alert-success {
  background: #f0fdf4;
  border-color: var(--success);
  color: #166534;
}

/* Tabelas */
.table-container {
  overflow-x: auto;
  margin: var(--space-md) 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--neutral-200);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: white;
}

thead {
  background: var(--neutral-100);
}

th, td {
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--neutral-200);
}

th {
  font-weight: 600;
  color: var(--primary-dark);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

tr:last-child td {
  border-bottom: none;
}

tbody tr:hover {
  background: var(--neutral-50);
}

/* Lista com ícones */
.icon-list {
  list-style: none;
}

.icon-list li {
  padding: var(--space-sm) 0;
  padding-left: var(--space-lg);
  position: relative;
}

.icon-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: bold;
  font-size: 1.125rem;
}

/* FAQ Accordion */
.faq-item {
  background: white;
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: var(--space-md);
  background: none;
  border: none;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--primary-dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.2s ease;
}

.faq-question:hover {
  background: var(--neutral-50);
}

.faq-icon {
  font-size: 1.25rem;
  transition: transform 0.3s ease;
  color: var(--primary-main);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer-content {
  padding: 0 var(--space-md) var(--space-md);
  color: var(--neutral-700);
  line-height: 1.7;
}

/* Formulário */
.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 500;
  color: var(--neutral-700);
  font-size: 0.95rem;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-sm);
  border: 1px solid var(--neutral-300);
  border-radius: var(--radius-md);
  font-family: var(--font-system);
  font-size: 1rem;
  transition: all 0.2s ease;
  background: white;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary-main);
  box-shadow: 0 0 0 3px rgba(45, 122, 184, 0.1);
}

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

.form-error {
  color: var(--error);
  font-size: 0.875rem;
  margin-top: var(--space-xs);
  display: none;
}

.form-group.error .form-error {
  display: block;
}

.form-group.error .form-input,
.form-group.error .form-textarea,
.form-group.error .form-select {
  border-color: var(--error);
}

/* Botões */
.btn {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-system);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-main), var(--primary-light));
  color: white;
}

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

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

.btn-secondary:hover {
  background: var(--primary-main);
  color: white;
}

.btn-large {
  padding: var(--space-md) var(--space-xl);
  font-size: 1.125rem;
}

/* Badge */
.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-primary {
  background: var(--primary-main);
  color: white;
}

.badge-gold {
  background: var(--accent-gold);
  color: white;
}

/* Rodapé */
.site-footer {
  background: var(--neutral-900);
  color: var(--neutral-400);
  padding: var(--space-xl) 0 var(--space-md);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-section h4 {
  color: white;
  font-size: 1rem;
  margin-bottom: var(--space-md);
}

.footer-section p,
.footer-section a {
  color: var(--neutral-400);
  font-size: 0.9rem;
  line-height: 1.8;
}

.footer-section a:hover {
  color: var(--primary-light);
}

.footer-bottom {
  border-top: 1px solid var(--neutral-800);
  padding-top: var(--space-md);
  margin-top: var(--space-lg);
  text-align: center;
}

.footer-legal {
  font-size: 0.75rem;
  opacity: 0.5;
  line-height: 1.6;
  margin-top: var(--space-sm);
}

.footer-legal p {
  margin-bottom: 0.25rem;
}

/* Success message */
.success-message {
  display: none;
  padding: var(--space-md);
  background: #f0fdf4;
  border: 1px solid var(--success);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  color: #166534;
}

.success-message.show {
  display: block;
}

/* Responsivo */
@media (max-width: 768px) {
  :root {
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
  }
  
  .menu-toggle {
    display: block;
  }
  
  .main-nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: white;
    border-bottom: 1px solid var(--neutral-200);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  
  .main-nav.active {
    max-height: 400px;
  }
  
  .main-nav ul {
    flex-direction: column;
    gap: 0;
    padding: var(--space-md);
  }
  
  .main-nav a {
    display: block;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--neutral-100);
  }
  
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
  
  .hero {
    min-height: auto;
    padding: var(--space-2xl) 0;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-sm);
  }
  
  .card {
    padding: var(--space-md);
  }
}