/* ==========================================================================
   1. VARIÁVEIS BASE E SISTEMA DE CONTRASTE (ATUALIZADO COM AS NOVAS CORES)
   ========================================================================== */
:root {
  --primary-blue: #247ba0;
  --accent-orange: #ffa339;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --text: #1e293b;
  --text-muted: #475569;
  --card-border: #e2e8f0;
  --radius: 8px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --navbar-height: 75px; /* Otimizado de 105px para 75px devido ao layout horizontal mais fino */
}

/* Modificadores para a classe de alto contraste */
body.high-contrast {
  --bg: #000000;
  --bg-alt: #1a1a1a;
  --text: #ffffff;
  --text-muted: #dddddd;
  --primary-blue: #ffff00;   /* Amarelo acessível para links/títulos */
  --accent-orange: #ffff55;
  --card-border: #ffffff;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  background-color: var(--bg);
  color: var(--text);
  transition: var(--transition);
}

.container {
  width: 90%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
}

img.img-responsive {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  object-fit: cover;
  display: block;
}


/* ==========================================================================
   2. NAVBAR & MENU SANDUÍCHE (CONFIGURAÇÃO HORIZONTAL)
   ========================================================================== */
.navbar {
  position: sticky;
  top: 0;
  background: var(--bg);
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  z-index: 1000;
  border-bottom: 1px solid var(--card-border);
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
}

.logo {
  display: flex;
  align-items: center;
}

.logo a {
  display: inline-flex;    
  align-items: center;     
  gap: 12px;               
  text-decoration: none;
  color: var(--primary-blue);
  font-weight: 800;
  font-size: 1.2rem;       
  transition: var(--transition);
}

.nav-logo-img {
  width: 130px !important;   /* Mantido exatamente o seu tamanho definido */
  height: 130px !important;  /* Mantido exatamente o seu tamanho definido */
  display: block;
  object-fit: contain;     
  border-radius: 6px;
}

.logo span {
  display: inline-block;
  white-space: nowrap;    
  line-height: 1;
}

/* Agrupador do lado direito da Navbar */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

.navbar ul.nav-menu {
  display: flex;
  align-items: center;
  gap: 20px;
  list-style: none;
}

.navbar a {
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
}

.navbar a:hover {
  color: var(--primary-blue);
}

.btn-contrast {
  background: var(--text);
  color: var(--bg);
  border: 1px solid var(--text);
  padding: 6px 12px;
  border-radius: 20px;
  cursor: pointer;
  font-weight: bold;
  font-size: 0.85rem;
  transition: var(--transition);
}

/* Estrutura do Botão Hamburguer (Invisível no desktop) */
.btn-hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1100;
}

.btn-hamburger span {
  width: 100%;
  height: 3px;
  background-color: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}


/* ==========================================================================
   3. HERO & CONTAINER SOBRE (PÚBLICO-ALVO)
   ========================================================================== */
.hero {
  background: linear-gradient(135deg, var(--bg-alt) 0%, var(--bg) 100%);
  padding: 185px 0;
  border-bottom: 1px solid var(--card-border);
  text-align: center;
}

.hero-center {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.event-tag {
  color: var(--primary-blue);
  text-transform: uppercase;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 1px;
}

.hero h1 {
  font-size: 3.5rem;
  line-height: 1.15;
  color: var(--text);
  margin: 15px 0;
}

.hero h2 {
  font-size: 1.65rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 25px;
}

.header-bar {
  width: 80px;
  height: 4px;
  background: var(--accent-orange); 
  margin-bottom: 25px;
  border-radius: 2px;
}

.event-info {
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.hero-actions {
  display: flex;
  gap: 15px;
  margin-top: 35px;
}

.btn-primary-cbie, .btn-primary {
  background: var(--primary-blue);
  color: #fff;
  padding: 14px 28px;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: bold;
  display: inline-block;
  transition: var(--transition);
  box-shadow: 0 4px 6px rgba(36, 123, 160, 0.15);
}

.btn-primary-cbie:hover, .btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(36, 123, 160, 0.25);
}

.btn-secondary-cbie {
  border: 2px solid var(--text);
  color: var(--text);
  padding: 12px 26px;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: bold;
  display: inline-block;
  transition: var(--transition);
}

.btn-secondary-cbie:hover {
  background: var(--text);
  color: var(--bg);
}

.audience-container {
  margin-top: 25px;
  padding-top: 20px;
  border-top: 1px dashed var(--card-border);
}

.audience-container h3 {
  color: var(--primary-blue);
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.audience-list {
  list-style: none;
  padding: 0;
  margin-bottom: 20px;
}

.audience-list li {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 10px;
  position: relative;
}

.capacity-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--bg-alt);
  border: 1px solid var(--card-border);
  border-left: 4px solid var(--accent-orange); 
  padding: 8px 16px;
  font-size: 0.9rem;
  color: var(--text);
  border-radius: var(--radius);
}


/* ==========================================================================
   4. SEÇÕES INTERCALADAS (TEXTO, CRONOGRAMA E DATAS DETALHADAS)
   ========================================================================== */
.section {
  padding: 80px 0;
  scroll-margin-top: var(--navbar-height); 
}

.section-alt {
  background-color: var(--bg-alt);
}

.section h2 {
  color: var(--primary-blue);
  font-size: 2.25rem;
  margin-bottom: 20px;
}

.section-title-center {
  text-align: center;
  color: var(--primary-blue);
  font-size: 2.25rem;
  margin-bottom: 15px;
}

.section-lead-center {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px auto;
  font-size: 1.1rem;
  color: var(--text-muted);
}

.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
}

.layout-split.inverse .split-grid .split-text { order: 2; }
.layout-split.inverse .split-grid .split-image { order: 1; }

#datas .split-image {
  margin-top: 50px;
}

.split-text p {
  margin-bottom: 15px;
  color: var(--text-muted);
  font-size: 1.1rem;
}

.cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
  margin-top: 25px;
}

.card {
  background: var(--bg);
  padding: 20px;
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
  border-top: 4px solid var(--accent-orange); 
}

.card h3 {
  font-size: 1.05rem;
  margin-bottom: 5px;
}

.card .date {
  font-weight: bold;
  color: var(--primary-blue);
}

.card-data-detalhada {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.badge-limite {
  font-size: 0.75rem;
  background-color: rgba(255, 163, 57, 0.15); 
  color: #c26100; 
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 700;
  margin-left: 5px;
  vertical-align: middle;
}

.card .date-desc {
  font-size: 0.85rem !important;
  color: var(--text-muted);
  line-height: 1.4;
  margin-top: 4px;
}

.timeline {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 25px;
}

.timeline-item {
  border-left: 4px solid var(--primary-blue);
  padding-left: 20px;
}

.timeline-item .time {
  font-weight: 800;
  color: var(--accent-orange); 
}

.timeline-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr); 
    gap: 30px; 
    margin-top: 25px;
}

.timeline-grid .timeline-item {
    border-left: 4px solid var(--primary-blue);
    padding-left: 15px;
    margin-bottom: 0; 
}


/* ==========================================================================
   5. COMPONENTE ORGANIZAÇÃO, LINKS LATTES E EQUIPE TÉCNICA
   ========================================================================== */
.org-subtitle {
  text-align: center;
  margin: 40px 0 20px 0;
  font-size: 1.5rem;
}

.coordenadores-horizontal {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap; 
  margin-bottom: 5px;
}

.card.person {
  padding: 20px;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
  text-align: left;
  cursor: pointer; 
  transition: var(--transition);
  flex: 1 1 450px;    
  max-width: 520px;   
  display: flex;      
}

.card.person:hover {
  transform: translateY(-3px);
  border-color: var(--primary-blue);
  box-shadow: 0 4px 12px rgba(36, 123, 160, 0.1);
}

.card.person .card-link {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 20px;
  width: 100%;
  height: 100%;
  text-decoration: none; 
  color: inherit;        
}

.card.person .card-link img {
  width: 100px;
  height: 100px;
  min-width: 100px; 
  border-radius: 50%;
  border: 3px solid var(--primary-blue);
  object-fit: cover;
}

.person-info h3 {
  font-size: 1.25rem;
  color: var(--text);
}

.person-info .inst {
  font-weight: bold;
  color: var(--primary-blue);
  font-size: 0.9rem;
}

.person-info .bio {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 5px;
}

.equipe-tecnica-centralizada {
  text-align: center;
  margin: 40px auto 0 auto;
  max-width: 600px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center; 
  justify-content: center;
}

.equipe-tecnica-centralizada .comite-list {
  padding: 0 !important; 
  margin: 0 !important;
  list-style: none !important; 
  width: 100%;
  text-align: center !important;
}

.equipe-tecnica-centralizada .comite-list li {
  display: block !important;
  text-align: center !important; 
  padding: 12px 0;
  font-size: 1.1rem;
  color: var(--text-muted);
  border-bottom: 1px dashed var(--card-border);
}

.link-equipe {
  text-decoration: none;
  color: inherit; 
  transition: var(--transition);
}

.link-equipe:hover {
  color: var(--primary-blue); 
}

.link-equipe strong {
  font-weight: 700;
}


/* ==========================================================================
   6. MEGA GRID DA SEÇÃO DE SUBMISSÕES (CRITÉRIOS E REQUISITOS)
   ========================================================================== */
.submission-mega-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  align-items: start;
}

.submission-col {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.submission-card-box {
  background: var(--bg);
  padding: 25px;
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
}

.submission-card-box h3 {
  color: var(--primary-blue);
  font-size: 1.25rem;
  margin-bottom: 15px;
}

.submission-card-box.border-accent {
  border-top: 4px solid var(--primary-blue);
  margin-top: 14px; 
}

.topics-list-single {
  padding-left: 20px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.topics-list-single li {
  margin-bottom: 8px;
}

.ethical-guidelines {
  background-color: rgba(36, 123, 160, 0.05); 
  border-left: 4px solid var(--primary-blue);
  padding: 15px 20px;
  border-radius: 0 var(--radius) var(--radius) 0;
}

.ethical-guidelines h3 {
  color: var(--primary-blue);
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.ethical-guidelines p {
  font-size: 0.95rem !important;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 8px !important;
}

.ethical-guidelines p:last-child {
  margin-bottom: 0 !important;
}

.ethical-guidelines.ai-box {
  background-color: rgba(255, 163, 57, 0.04); 
  border-left: 4px solid var(--accent-orange);
}

.ethical-guidelines.ai-box h3 {
  color: #d97706; 
}

.submission-details-block {
  margin: 25px 0;
}

.requirements-box {
  background-color: var(--bg);
  border: 1px solid var(--card-border);
  border-top: 4px solid var(--accent-orange); 
  padding: 20px;
  border-radius: var(--radius);
}

.requirements-list {
  list-style: none;
  padding: 0;
  margin: 15px 0 0 0;
}

.requirements-list li {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  margin-bottom: 12px;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.requirements-list li span {
  background-color: var(--primary-blue);
  color: #ffffff;
  font-weight: bold;
  font-size: 0.85rem;
  min-width: 22px;
  height: 22px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 1px;
}

.format-alert {
  font-weight: bold;
  margin-bottom: 20px;
}

.criteria-badge-container {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.criteria-badge {
  background-color: var(--bg-alt);
  color: var(--text-muted);
  border: 1px solid var(--card-border);
  padding: 6px 12px;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 20px;
  transition: var(--transition);
}

.criteria-badge:hover {
  border-color: var(--accent-orange);
  color: var(--text);
}

.submission-footer-action {
  text-align: center;
  margin-top: 40px;
  padding-top: 30px;
  border-top: 1px solid var(--card-border);
}

.submission-actions {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-top: 20px;
  flex-wrap: wrap;
}


/* ==========================================================================
   7. MARCAS E INSTITUIÇÕES APOIADORAS (COM LINKS INTEGRADOS)
   ========================================================================== */
.institutional-section {
  text-align: center;
}

.brand-group {
  margin: 30px 0;
}

.brand-group h4 {
  margin-bottom: 15px;
  color: var(--text-muted);
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 1px;
}

.brand-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}

.brand-logos a {
  display: inline-block;
  text-decoration: none;
  transition: var(--transition);
}

.brand-logos img {
  max-height: 55px;
  width: auto;
  filter: grayscale(1);
  opacity: 0.7;
  transition: var(--transition);
  display: block; 
}

.brand-logos a:hover img {
  filter: grayscale(0);
  opacity: 1;
  transform: scale(1.03); 
}

.brand-logos img.logo-destaque {
  max-height: 85px; 
  width: auto;      
}


/* ==========================================================================
   8. FOOTER & COMPONENTES TÁTICOS DE SUPORTE
   ========================================================================== */
footer {
  background: #111827;
  color: #f3f4f6;
  padding: 40px 0;
  text-align: center;
  font-size: 0.95rem;
}

footer a {
  color: var(--accent-orange);
  text-decoration: none;
}

#progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 4px;
  background: var(--accent-orange);
  z-index: 2000;
}

#topBtn {
  position: fixed;
  bottom: 25px;
  right: 25px;
  background: var(--primary-blue);
  color: #fff;
  border: none;
  width: 45px;
  height: 45px;
  border-radius: 50%;
  font-size: 1.25rem;
  cursor: pointer;
  display: none;
  transition: var(--transition);
  box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}


/* ==========================================================================
   9. BREAKPOINTS E RESPONSIVIDADE (MOBILE-FIRST)
   ========================================================================== */
@media (max-width: 992px) {
  .split-grid, .submission-mega-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .layout-split.inverse .split-grid .split-text { order: 1; }
  .layout-split.inverse .split-grid .split-image { order: 2; }
  .hero h1 { font-size: 2.8rem; }
  .submission-card-box.border-accent { margin-top: 0; } 
  #datas .split-image { margin-top: 0; }
}

@media (max-width: 768px) {
  .cards-grid, .comite-grid, .timeline-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 2.2rem; }
  
  /* 🎯 ATIVAÇÃO DO BOTÃO HAMBÚRGUER */
  .btn-hamburger {
    display: flex;
  }

  /* 🎯 NOME VISÍVEL COM FONTE ADAPTATIVA */
  .logo a {
    font-size: 0.95rem; 
    gap: 8px;           
  }
  
  .logo .nav-logo-text {
    display: inline-block !important; 
    white-space: normal;              
    max-width: 140px;                 
    text-align: left;
  }

  /* 🎯 TRANSFORMA SUA LISTA ORIGINAL NA CORTINA LATERAL FLUTUANTE */
  .navbar ul.nav-menu { 
    position: fixed;
    top: 0;
    right: -100%;
    width: 260px;
    height: 100vh;
    background-color: var(--bg);
    border-left: 1px solid var(--card-border);
    flex-direction: column;
    align-items: flex-start;
    padding: 80px 30px;
    gap: 25px;
    box-shadow: -5px 0 15px rgba(0,0,0,0.05);
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1050;
    display: flex !important; /* Sobrescreve eventuais conflitos */
  }
  
  .navbar ul.nav-menu.active {
    right: 0;
  }

  .navbar ul.nav-menu a {
    font-size: 1.1rem;
    width: 100%;
    display: block;
  }

  /* 🎯 COMPORTAMENTO DE RESPONSIVIDADE DOS BOTÕES INFERIORES */
  .hero-actions, .submission-actions {
    flex-direction: column;
    width: 100%;
    gap: 10px;
  }
  
  .submission-actions a,
  .submission-actions .btn-secondary-cbie,
  .submission-actions .btn-primary {
    width: 100% !important;
    display: inline-flex;
    justify-content: center;
  }

  /* Animação mecânica das linhas do hambúrguer (Virando X) */
  .btn-hamburger.active span:nth-child(1) {
    transform: translateY(7.5px) rotate(45deg);
  }
  .btn-hamburger.active span:nth-child(2) {
    opacity: 0;
  }
  .btn-hamburger.active span:nth-child(3) {
    transform: translateY(-7.5px) rotate(-45deg);
  }
}


/* ==========================================================================
   10. MODIFICADORES GERAIS DE ALTO CONTRASTE (ACCESSIBILITY / A11Y)
   ========================================================================== */
body.high-contrast .logo a,
body.high-contrast #topBtn,
body.high-contrast .btn-primary-cbie,
body.high-contrast .btn-primary {
  color: #000000 !important;
}

body.high-contrast .brand-logos img {
  filter: brightness(0) invert(1) !important;
}

body.high-contrast .equipe-tecnica-centralizada .comite-list li,
body.high-contrast .ethical-guidelines p,
body.high-contrast .submission-card-box p,
body.high-contrast .card .date-desc,
body.high-contrast .audience-list li {
  color: var(--text) !important;
}

body.high-contrast .equipe-tecnica-centralizada .comite-list li {
  border-bottom-color: var(--card-border);
}

body.high-contrast .text-contrast-white {
  color: #ffffff !important;
}

body.high-contrast .submission-card-box,
body.high-contrast .ethical-guidelines.ai-box,
body.high-contrast .ethical-guidelines,
body.high-contrast .criteria-badge,
body.high-contrast .requirements-box,
body.high-contrast .audience-container,
body.high-contrast .capacity-badge {
  background-color: #000000;
  border-color: #ffffff;
}

body.high-contrast .ethical-guidelines.ai-box h3,
body.high-contrast .criteria-badge {
  color: #ffffff;
}

body.high-contrast .requirements-list li span {
  background-color: var(--primary-blue) !important; 
  color: #000000 !important;             /* Força número preto no contraste */
}

body.high-contrast .link-equipe:hover {
  color: var(--primary-blue); 
  text-decoration: underline;  
}

body.high-contrast .card.person:hover {
  border-color: var(--primary-blue); 
}

body.high-contrast .btn-hamburger span {
  background-color: var(--text); 
}

/* ==========================================================================
   11. CONTATOS
   ========================================================================== */
/* Container dos botões estilo Even3 */
.org-actions-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 15px;
  margin-top: 40px;
  flex-wrap: wrap;
}

/* Base dos botões arredondados */
.btn-org-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  font-size: 0.85rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: 30px; /* Garante o visual arredondado estilo Even3 */
  transition: var(--transition);
  letter-spacing: 0.5px;
}

/* Botão de Contato (Usa o azul padrão do seu evento) */
.btn-org-contact {
  background-color: var(--primary-blue);
  color: #ffffff;
  border: 1px solid var(--primary-blue);
}

.btn-org-contact:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

/* Botão do Instagram (Usa o tom laranja para harmonizar com a paleta do evento) */
.btn-org-instagram {
  background-color: transparent;
  color: var(--accent-orange);
  border: 2px solid var(--accent-orange);
}

.btn-org-instagram:hover {
  background-color: var(--accent-orange);
  color: var(--bg);
  transform: translateY(-1px);
}

/* ==========================================================================
   Suporte e Ajuste para a Seção 10 (Alto Contraste)
   ========================================================================== */
body.high-contrast .btn-org-action {
  background-color: #000000 !important;
  border-color: #ffffff !important;
  color: #ffffff !important;
}

body.high-contrast .btn-org-action:hover {
  background-color: var(--primary-blue) !important; /* Vira amarelo no contraste */
  color: #000000 !important;
  border-color: var(--primary-blue) !important;
}

@media (max-width: 768px) {
  /* ... suas outras regras do mobile ... */

  .hero-actions, .submission-actions, .org-actions-container {
    flex-direction: column;
    width: 100%;
    gap: 10px;
  }
  
  .submission-actions a,
  .submission-actions .btn-secondary-cbie,
  .submission-actions .btn-primary,
  .btn-org-action {
    width: 100% !important;
    display: inline-flex;
    justify-content: center;
  }
}