/* ==========================================================================
   PORTAL INSTITUCIONAL GEaD • UFG
   GRUPO DE ESTUDOS E PESQUISAS EM TECNOLOGIAS E EDUCAÇÃO A DISTÂNCIA
   FACULDADE DE EDUCAÇÃO (FE) • PROGRAMA DE PÓS-GRADUAÇÃO EM EDUCAÇÃO (PPGE)
   UNIVERSIDADE FEDERAL DE GOIÁS (UFG)
   
   REVISÃO ESTÉTICA GERAL • FORÇA-TAREFA DE FRONTEND E DESIGN SYSTEM
   Líderes de Design: Dr. Rogério Castro, Dra. Érica Prado, Dr. Klaus Winter,
   Dr. Thiago Arantes, Dr. Henrique Sampaio e Dra. Clarice Ramos.
   
   Diretrizes: Estética Acadêmica Suíça | Zero Emojis | WCAG 2.2 AAA | e-MAG 3.1
   ========================================================================== */

/* 1. DESIGN TOKENS & PALETA CROMÁTICA OFICIAL DO GEaD */
:root {
  /* Superfícies e Telas - Modo Claro */
  --bg-canvas: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #ffffff;
  --bg-subtle: #f1f5f9;
  --bg-muted: #e2e8f0;
  --bg-glass: rgba(255, 255, 255, 0.85);

  /* Hierarquia Tipográfica de Textos */
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --text-inverse: #ffffff;

  /* Paleta Cromática Oficial do GEaD */
  --gead-teal-primary: #227073;
  --gead-teal-hover: #174d4f;
  --gead-teal-active: #11393a;
  --gead-teal-light: #dae7e8;
  --gead-teal-tint: rgba(34, 112, 115, 0.08);
  --gead-teal-glow: rgba(34, 112, 115, 0.18);
  --gead-teal-border: rgba(34, 112, 115, 0.22);

  /* Identidades Complementares dos Eixos */
  --ufg-blue: #006699;
  --ufg-blue-primary: #006699;
  --ufg-blue-light: #e0f2fe;
  --rede-ia-indigo: #1e3a8a;
  --rede-ia-cyan: #06b6d4;
  --rede-ia-tint: rgba(6, 182, 212, 0.1);
  --rede-ead-amber: #d97706;
  --rede-ead-tint: rgba(217, 119, 6, 0.1);
  --leieh-emerald: #059669;
  --leieh-tint: rgba(5, 150, 105, 0.1);

  /* Escala Tipográfica Modular Suíça (Razão 1.250) */
  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-md: 1.125rem;   /* 18px */
  --font-size-lg: 1.25rem;    /* 20px */
  --font-size-xl: 1.563rem;   /* 25px */
  --font-size-2xl: 1.953rem;  /* 31.25px */
  --font-size-3xl: 2.441rem;  /* 39.06px */
  --font-scale: 1;

  /* Bordas Hairline & Sombras Sutis */
  --border-hairline: rgba(15, 23, 42, 0.08);
  --border-medium: rgba(15, 23, 42, 0.16);
  --border-focus: #227073;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 12px -2px rgba(15, 23, 42, 0.06), 0 2px 4px -1px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 12px 24px -4px rgba(15, 23, 42, 0.08), 0 4px 8px -2px rgba(15, 23, 42, 0.04);
  --shadow-hover: 0 16px 32px -6px rgba(34, 112, 115, 0.12), 0 6px 12px -3px rgba(15, 23, 42, 0.04);

  /* Tipografia Suíça de Precisão */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Layout & Espaçamento Harmônico (Escala 8pt) */
  --max-width: 1240px;
  --header-height: 76px;
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --transition-fast: 160ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 240ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 320ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* 2. MODO ESCURO INSTITUCIONAL (DARK MODE DE ALTO REFINAMENTO) */
html.dark {
  --bg-canvas: #090d16;
  --bg-surface: #0f172a;
  --bg-surface-elevated: #1e293b;
  --bg-subtle: #162032;
  --bg-muted: #1e293b;
  --bg-glass: rgba(15, 23, 42, 0.88);

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-inverse: #0f172a;

  --gead-teal-primary: #56bfc4;
  --gead-teal-hover: #75cbcf;
  --gead-teal-active: #95d8db;
  --gead-teal-light: #163638;
  --gead-teal-tint: rgba(86, 191, 196, 0.12);
  --gead-teal-glow: rgba(86, 191, 196, 0.22);
  --gead-teal-border: rgba(86, 191, 196, 0.28);

  --rede-ia-cyan: #38bdf8;
  --rede-ia-tint: rgba(56, 189, 248, 0.12);
  --rede-ead-amber: #fbbf24;
  --rede-ead-tint: rgba(251, 191, 36, 0.12);
  --leieh-emerald: #34d399;
  --leieh-tint: rgba(52, 211, 153, 0.12);

  --border-hairline: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.14);
  --border-focus: #56bfc4;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 14px -2px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 12px 28px -4px rgba(0, 0, 0, 0.6);
  --shadow-hover: 0 16px 32px -6px rgba(86, 191, 196, 0.15), 0 6px 14px -3px rgba(0, 0, 0, 0.5);
}

/* 3. MODO DE ALTO CONTRASTE GOVERNAMENTAL (e-MAG 3.1 / WCAG AAA 21:1) */
html.high-contrast {
  --bg-canvas: #000000;
  --bg-surface: #000000;
  --bg-surface-elevated: #000000;
  --bg-subtle: #111111;
  --bg-muted: #222222;
  --bg-glass: #000000;

  --text-primary: #ffffff;
  --text-secondary: #ffff00;
  --text-muted: #ffffff;
  --text-inverse: #000000;

  --gead-teal-primary: #ffff00;
  --gead-teal-hover: #ffffff;
  --gead-teal-active: #ffff00;
  --gead-teal-light: #000000;
  --gead-teal-tint: #111111;
  --gead-teal-glow: #ffff00;
  --gead-teal-border: #ffffff;

  --ufg-blue: #ffff00;
  --ufg-blue-light: #000000;
  --rede-ia-indigo: #ffff00;
  --rede-ia-cyan: #00ffff;
  --rede-ia-tint: #000000;
  --rede-ead-amber: #ffff00;
  --rede-ead-tint: #000000;
  --leieh-emerald: #00ff00;
  --leieh-tint: #000000;

  --border-hairline: #ffffff;
  --border-medium: #ffffff;
  --border-focus: #ffff00;
}

/* 4. RESET & ESTILOS BASE */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

a {
  color: var(--gead-teal-primary);
  text-decoration: none;
  transition: color var(--transition-fast), opacity var(--transition-fast);
}

a:hover {
  text-decoration: underline;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

img, svg {
  display: block;
  max-width: 100%;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* 5. ACESSIBILIDADE: SKIP LINKS & FOCO */
.skip-link {
  position: absolute;
  top: -9999px;
  left: 16px;
  background: var(--gead-teal-primary);
  color: var(--text-inverse);
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.875rem;
  z-index: 10000;
  text-decoration: none;
  box-shadow: var(--shadow-lg);
}

.skip-link:focus {
  top: 16px;
  outline: 3px solid #ffff00;
}

:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 3px;
}

/* 6. BARRA DE ACESSIBILIDADE GOVERNAMENTAL SUPERIOR & BREADCRUMB */
.gov-bar {
  background-color: var(--bg-subtle);
  border-bottom: 1px solid var(--border-hairline);
  font-size: 0.75rem;
  padding: 6px 0;
}

.gov-bar-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: nowrap;
  gap: 16px;
}

.gov-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.78rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.breadcrumb-sep {
  opacity: 0.35;
}

.breadcrumb-item.current {
  color: var(--gead-teal-primary);
  font-weight: 700;
}

.gov-tools {
  display: flex;
  gap: 6px;
  align-items: center;
  flex-shrink: 0;
  white-space: nowrap;
}

.gov-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 26px;
  padding: 0 10px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xs);
  background-color: var(--bg-surface);
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.gov-btn:hover {
  background-color: var(--gead-teal-tint);
  color: var(--gead-teal-primary);
  border-color: var(--gead-teal-primary);
}

/* 7. CABEÇALHO INSTITUCIONAL & NAVEGAÇÃO EM LINHA ÚNICA */
.header-main {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-hairline);
  box-shadow: var(--shadow-sm);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.header-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--header-height);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: nowrap;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.brand-logos {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-link {
  display: flex;
  align-items: center;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.logo-link:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  text-decoration: none;
}

.logo-link img, .logo-link svg {
  height: 38px;
  width: auto;
}

.brand-divider {
  width: 1px;
  height: 24px;
  background-color: var(--border-medium);
}

.nav-main {
  display: flex;
  align-items: center;
  flex-shrink: 1;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 2px;
  align-items: center;
  flex-wrap: nowrap;
}

.nav-item {
  flex-shrink: 0;
}

.nav-item a, .nav-item button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 12px;
  color: var(--text-secondary);
  font-size: 0.86rem;
  font-weight: 600;
  white-space: nowrap;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.nav-item a:hover, .nav-item button:hover {
  background-color: var(--gead-teal-tint);
  color: var(--gead-teal-primary);
}

.nav-item.active a {
  background-color: var(--gead-teal-tint);
  color: var(--gead-teal-primary);
  font-weight: 700;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.header-social-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding: 0 12px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-medium);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  white-space: nowrap;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.header-social-btn:hover {
  background-color: var(--gead-teal-tint);
  border-color: var(--gead-teal-primary);
  color: var(--gead-teal-primary);
}

.btn-saber-fe-nav {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 36px;
  background-color: var(--gead-teal-primary);
  color: var(--text-inverse);
  padding: 0 14px;
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
}

.btn-saber-fe-nav:hover {
  background-color: var(--gead-teal-hover);
  color: var(--text-inverse);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* 8. HERO SECTION DO PORTAL GEaD */
.hero-section {
  background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-canvas) 100%);
  border-bottom: 1px solid var(--border-hairline);
  padding: 52px 0 48px;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -80px;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--gead-teal-tint) 0%, transparent 70%);
  pointer-events: none;
}

.hero-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 48px;
  align-items: center;
}

/* Kicker Editorial Institucional (Sem formato de botão) */
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--gead-teal-primary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.hero-kicker::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 2px;
  background-color: var(--gead-teal-primary);
  border-radius: 1px;
}

.hero-title {
  font-size: 2.35rem;
  line-height: 1.18;
  font-weight: 900;
  color: var(--text-primary);
  letter-spacing: -0.035em;
  margin-bottom: 18px;
}

.hero-title span {
  color: var(--gead-teal-primary);
}

.hero-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.68;
  margin-bottom: 30px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: var(--gead-teal-primary);
  color: var(--text-inverse);
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--gead-teal-hover);
  color: var(--text-inverse);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  background-color: var(--bg-subtle);
  border-color: var(--gead-teal-primary);
  color: var(--gead-teal-primary);
  text-decoration: none;
}

.hero-stats-panel {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-md);
  position: relative;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.stat-item {
  border-left: 3px solid var(--gead-teal-primary);
  padding-left: 16px;
}

.stat-value {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.1;
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-top: 4px;
}

/* 9. SEÇÕES PRINCIPAIS & ESTRUTURA GERAL */
.section {
  padding: 72px 0;
}

.section-alt {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-hairline);
  border-bottom: 1px solid var(--border-hairline);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section-header {
  text-align: center;
  max-width: 820px;
  margin: 0 auto 52px;
}

.section-tag {
  display: inline-block;
  color: var(--gead-teal-primary);
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.section-title {
  font-size: 1.95rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.025em;
  line-height: 1.25;
  margin-bottom: 14px;
}

.section-subtitle {
  font-size: 1.02rem;
  color: var(--text-secondary);
  line-height: 1.68;
}

/* 10. OS 4 PILARES ESTRATÉGICOS (GUARDA-CHUVA DO GEaD) */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.pillar-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  padding: 26px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.pillar-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background-color: var(--gead-teal-primary);
  opacity: 0.4;
  transition: opacity var(--transition-fast), height var(--transition-fast);
}

.pillar-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: var(--gead-teal-border);
}

.pillar-card:hover::before {
  opacity: 1;
  height: 5px;
}

.pillar-card.pillar-rede-ia::before { background-color: var(--rede-ia-cyan); }
.pillar-card.pillar-rede-ead::before { background-color: var(--rede-ead-amber); }
.pillar-card.pillar-leieh::before { background-color: var(--leieh-emerald); }
.pillar-card.pillar-hub::before { background-color: var(--gead-teal-primary); }

.pillar-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.pillar-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-sm);
  background-color: var(--gead-teal-tint);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.pillar-card:hover .pillar-icon {
  transform: scale(1.05);
}

.pillar-card.pillar-rede-ia .pillar-icon { background-color: var(--rede-ia-tint); }
.pillar-card.pillar-rede-ead .pillar-icon { background-color: var(--rede-ead-tint); }
.pillar-card.pillar-leieh .pillar-icon { background-color: var(--leieh-tint); }

.pillar-icon-ia { color: var(--rede-ia-cyan); }
.pillar-icon-ead { color: var(--rede-ead-amber); }
.pillar-icon-leieh { color: var(--leieh-emerald); }
.pillar-icon-hub { color: var(--gead-teal-primary); }

.pillar-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.3;
  letter-spacing: -0.015em;
}

.pillar-body {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.62;
  margin-bottom: 22px;
  flex-grow: 1;
}

.pillar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

.pillar-tag {
  font-size: 0.72rem;
  font-weight: 600;
  background-color: var(--bg-subtle);
  color: var(--text-muted);
  padding: 4px 9px;
  border-radius: var(--radius-xs);
  letter-spacing: 0.01em;
}

.pillar-btn {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--gead-teal-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 0;
  transition: gap var(--transition-fast), color var(--transition-fast);
}

.pillar-btn:hover {
  gap: 10px;
  color: var(--gead-teal-hover);
  text-decoration: none;
}

/* 11. HUB DE ARTEFATOS SOCIOTÉCNICOS & DESTAQUE SABER-FE */
.tools-showcase {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 36px;
  align-items: stretch;
}

.saber-fe-featured-card {
  background: linear-gradient(135deg, var(--bg-surface) 0%, var(--gead-teal-tint) 100%);
  border: 1px solid var(--gead-teal-border);
  border-radius: var(--radius-lg);
  padding: 38px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-md);
  position: relative;
  transition: all var(--transition-smooth);
}

.saber-fe-featured-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--gead-teal-primary);
}

.saber-fe-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--gead-teal-primary);
  color: var(--text-inverse);
  padding: 4px 12px;
  border-radius: var(--radius-xs);
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 22px;
}

.saber-fe-header {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 20px;
}

.saber-fe-logo-box {
  width: 66px;
  height: 66px;
  border-radius: var(--radius-md);
  background-color: #ffffff;
  padding: 6px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-hairline);
  display: flex;
  align-items: center;
  justify-content: center;
}

.saber-fe-logo-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.saber-fe-title {
  font-size: 1.65rem;
  font-weight: 900;
  color: var(--text-primary);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.saber-fe-subtitle {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 600;
}

.saber-fe-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.68;
  margin-bottom: 26px;
}

.saber-fe-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 30px;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.86rem;
  color: var(--text-secondary);
  font-weight: 600;
}

.feature-bullet {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--gead-teal-primary);
  flex-shrink: 0;
}

.saber-fe-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.tools-secondary-grid {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.tool-secondary-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  padding: 22px;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.tool-secondary-card:hover {
  border-color: var(--gead-teal-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.tool-sec-title {
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.tool-sec-desc {
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.56;
  margin-bottom: 14px;
}

.tool-sec-link {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--gead-teal-primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.tool-sec-link:hover {
  text-decoration: underline;
}

/* 12. BIBLIOTECA CIENTÍFICA, ABAS & EXPORTAÇÃO BIBTEX */
.publication-tabs {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.pub-tab {
  padding: 9px 20px;
  font-size: 0.86rem;
  font-weight: 600;
  border-radius: 999px;
  border: 1px solid var(--border-medium);
  background-color: var(--bg-surface);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.pub-tab:hover {
  background-color: var(--gead-teal-tint);
  color: var(--gead-teal-primary);
  border-color: var(--gead-teal-primary);
}

.pub-tab.active {
  background-color: var(--gead-teal-primary);
  color: var(--text-inverse);
  border-color: var(--gead-teal-primary);
  font-weight: 700;
}

.library-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.book-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  padding: 26px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-smooth);
  box-shadow: var(--shadow-sm);
  position: relative;
}

.book-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: var(--gead-teal-border);
}

.book-type-badge {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--gead-teal-primary);
  background-color: var(--gead-teal-tint);
  padding: 4px 10px;
  border-radius: var(--radius-xs);
  align-self: flex-start;
  margin-bottom: 14px;
  letter-spacing: 0.03em;
}

.book-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.32;
  margin-bottom: 8px;
  letter-spacing: -0.015em;
}

.book-authors {
  font-size: 0.83rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  font-weight: 500;
}

.book-summary {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.58;
  margin-bottom: 22px;
  flex-grow: 1;
}

.book-citation-box {
  background-color: var(--bg-subtle);
  border-left: 3px solid var(--gead-teal-primary);
  padding: 12px 14px;
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  margin-bottom: 20px;
  overflow-x: auto;
  line-height: 1.5;
}

.book-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.btn-download-sm {
  padding: 8px 14px;
  font-size: 0.82rem;
  font-weight: 700;
  background-color: var(--gead-teal-primary);
  color: var(--text-inverse);
  border-radius: var(--radius-xs);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
}

.btn-download-sm:hover {
  background-color: var(--gead-teal-hover);
  color: var(--text-inverse);
  text-decoration: none;
}

.btn-cite-sm {
  padding: 8px 14px;
  font-size: 0.82rem;
  font-weight: 600;
  background-color: var(--bg-subtle);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xs);
  transition: all var(--transition-fast);
}

.btn-cite-sm:hover {
  background-color: var(--bg-muted);
}

/* 13. LINHAS DE PESQUISA & CORPO DE PESQUISADORES */
.research-lines-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  margin-bottom: 48px;
}

.research-line-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  padding: 28px;
  border-top: 4px solid var(--gead-teal-primary);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.research-line-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.line-number {
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--gead-teal-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 10px;
}

.line-title {
  font-size: 1.18rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 14px;
  line-height: 1.3;
  letter-spacing: -0.015em;
}

.line-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* 14. PAINEL DE PESQUISADORES & PÓS-GRADUANDOS DO GEaD */
.leadership-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-left: 4px solid var(--gead-teal-primary);
  border-radius: var(--radius-md);
  padding: 28px;
  margin-bottom: 28px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.leadership-card:hover {
  border-color: var(--gead-teal-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.leadership-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--gead-teal-primary);
  background-color: var(--gead-teal-tint);
  border: 1px solid var(--gead-teal-border);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  margin-bottom: 14px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.leadership-content {
  display: flex;
  gap: 22px;
  align-items: flex-start;
}

.leadership-avatar {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--gead-teal-primary), var(--ufg-blue-primary));
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.25rem;
  flex-shrink: 0;
  font-family: var(--font-mono);
}

.leadership-info {
  flex-grow: 1;
}

.leadership-name {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.25;
  letter-spacing: -0.015em;
}

.leadership-role {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--gead-teal-primary);
  margin-top: 4px;
}

.leadership-alma {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2px;
  margin-bottom: 10px;
  font-weight: 500;
}

.leadership-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.persona-tag-slot {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--gead-teal-primary);
  background-color: var(--gead-teal-tint);
  border: 1px solid var(--gead-teal-border);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}

.personas-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.persona-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  padding: 22px;
  display: flex;
  gap: 18px;
  transition: all var(--transition-fast);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.persona-card:hover {
  border-color: var(--gead-teal-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.persona-avatar {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-sm);
  background-color: var(--gead-teal-tint);
  border: 1px solid var(--gead-teal-border);
  color: var(--gead-teal-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1rem;
  flex-shrink: 0;
  font-family: var(--font-mono);
}

.persona-info {
  flex-grow: 1;
}

.persona-name {
  font-size: 1.02rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.persona-role {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--gead-teal-primary);
  margin-top: 2px;
}

.persona-alma {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  font-weight: 500;
}

.persona-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.54;
}

/* 15. MODAL DE INFORMAÇÕES COM FOCUS TRAP */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(15, 23, 42, 0.72);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  padding: 24px;
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal-dialog {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  max-width: 680px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  padding: 36px;
  position: relative;
  transform: translateY(20px);
  transition: transform var(--transition-fast);
}

.modal-backdrop.active .modal-dialog {
  transform: translateY(0);
}

.modal-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background-color: var(--bg-subtle);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background-color: var(--gead-teal-primary);
  color: var(--text-inverse);
}

/* 16. RODAPÉ INSTITUCIONAL COM RÉGUA SECOM/UFG */
.footer-main {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-hairline);
  padding: 64px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 52px;
}

.footer-brand-col {
  padding-right: 24px;
}

.footer-logo {
  height: 48px;
  width: auto;
  margin-bottom: 18px;
}

.footer-desc {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 16px;
}

.footer-title {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a, .footer-link-btn {
  font-size: 0.86rem;
  color: var(--text-secondary);
  text-align: left;
  transition: color var(--transition-fast);
}

.footer-links a:hover, .footer-link-btn:hover {
  color: var(--gead-teal-primary);
}

.footer-lai-wrapper {
  margin-top: 16px;
  margin-bottom: 12px;
}

.footer-lai-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: #004b87;
  padding: 4px 10px;
  border-radius: var(--radius-xs);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  text-decoration: none;
}

.footer-lai-badge:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}

.footer-lai-badge img {
  height: 32px;
  width: auto;
  display: block;
}

.footer-social-wrapper {
  margin-top: 8px;
}

.footer-instagram-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 0.84rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-fast);
  padding: 6px 12px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
}

.footer-instagram-link:hover {
  color: var(--gead-teal-primary);
  border-color: var(--gead-teal-primary);
  background-color: var(--gead-teal-tint);
  text-decoration: none;
  transform: translateY(-1px);
}

.institutional-ruler {
  border-top: 1px solid var(--border-hairline);
  border-bottom: 1px solid var(--border-hairline);
  padding: 28px 0;
  margin-bottom: 28px;
}

.ruler-title {
  text-align: center;
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  margin-bottom: 18px;
}

.ruler-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 28px;
}

.ruler-logos a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.ruler-logos img, .ruler-logos svg {
  height: 36px;
  max-height: 38px;
  max-width: 130px;
  width: auto;
  object-fit: contain;
  opacity: 0.88;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.ruler-logos a:hover img, .ruler-logos a:hover svg,
.ruler-logos img:hover, .ruler-logos svg:hover {
  opacity: 1;
  transform: translateY(-2px);
}

.footer-bottom {
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.68;
}

/* 17. COMPONENTES SEMÂNTICOS DE DESIGN ACADÊMICO (AUDITORIA 4 PERSONAS) */

/* Painel Sobre o GEaD */
.about-gead-panel {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
}

.about-gead-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 32px;
  align-items: center;
}

.about-leader-col {
  border-right: 1px solid var(--border-subtle);
  padding-right: 24px;
}

.about-leader-name {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.about-leader-role {
  color: var(--gead-teal-primary);
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 12px;
}

.about-leader-bio {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 12px;
}

.about-leader-orcid {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.about-mission-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.about-mission-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 14px;
}

.about-tags-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* Card de Participação Aberta & Extensão */
.join-team-panel {
  margin-top: 28px;
  background-color: var(--bg-surface);
  border: 1px dashed var(--gead-teal-border);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.join-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--gead-teal-primary);
  background-color: var(--gead-teal-tint);
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.join-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.join-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 720px;
}

.join-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* Acordeão Semântico de FAQ */
.faq-accordion {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 18px 24px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.faq-item[open] {
  border-color: var(--gead-teal-primary);
  box-shadow: var(--shadow-sm);
}

.faq-summary {
  font-weight: 700;
  color: var(--text-primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-summary::-webkit-details-marker {
  display: none;
}

.faq-summary::after {
  content: '+';
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--gead-teal-primary);
  font-weight: 700;
  transition: transform var(--transition-fast);
}

.faq-item[open] .faq-summary::after {
  content: '-';
}

.faq-body {
  margin-top: 14px;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.68;
  border-top: 1px solid var(--border-hairline);
  padding-top: 12px;
}

/* Lista Estruturada de Volumes */
.book-volumes-list {
  margin: 12px 0;
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.55;
  background-color: var(--bg-surface-alt);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--gead-teal-primary);
}

/* Acessibilidade: Screen-reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Alto Contraste Governamental e-MAG 3.1 */
html.high-contrast .pillar-icon-ia,
html.high-contrast .pillar-icon-ead,
html.high-contrast .pillar-icon-leieh,
html.high-contrast .pillar-icon-hub {
  color: #ffff00 !important;
}

html.high-contrast .faq-item[open] {
  border-color: #ffff00 !important;
}

html.high-contrast .faq-summary::after {
  color: #ffff00 !important;
}

/* 18. RESPONSIVIDADE & AJUSTE DO MENU EM LINHA ÚNICA */
@media (max-width: 1200px) {
  .nav-item a, .nav-item button {
    padding: 0 8px;
    font-size: 0.82rem;
  }
  .brand-logos {
    gap: 8px;
  }
  .logo-link img, .logo-link svg {
    height: 32px;
  }
  .btn-saber-fe-nav {
    padding: 0 10px;
    font-size: 0.8rem;
  }
}

@media (max-width: 1024px) {
  .hero-grid, .tools-showcase {
    grid-template-columns: 1fr;
  }
  .pillars-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .library-grid, .research-lines-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .personas-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .nav-item a, .nav-item button {
    padding: 0 6px;
    font-size: 0.78rem;
  }
}

@media (max-width: 768px) {
  .gov-bar-container {
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
  }
  .gov-breadcrumb {
    font-size: 0.72rem;
  }
  .nav-main {
    display: none;
  }
  .hero-title {
    font-size: 1.85rem;
  }
  .pillars-grid, .library-grid, .research-lines-grid {
    grid-template-columns: 1fr;
  }
  .saber-fe-features {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}