@import url('https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,100..900;1,100..900&family=Quicksand:wght@300..700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,100..900;1,100..900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Baumans&display=swap');

/* ==========================================================================
   1. Estilos Globais e Variáveis (Dark Mode Padrão)
   ========================================================================== */

:root {
  /* Cores Principais (Baseadas no Dark Mode) */
  --primary-color: #38bdf8;
  /* Um azul mais vibrante para o dark mode */
  --primary-color-100: #3053a5;
  /* Um azul mais vibrante para o dark mode */
  --primary-dark: #7dd3fc;
  --primary-light: #0ea5e9;
  --secondary-color: #6d28d9;
  --secondary-dark: #5b21b6;
  --secondary-dark-2: #411b7d;
  --secondary-dark-3: #9a79ce;
  --secondary-light: #a78bfa;
  --accent-color: #4ade80;
  /* Verde para destaque */
  --accent-dark: #22c55e;
  --accent-light: #86efac;

  --icon-color: #49d7b2;

  /* Cores de Fundo e Texto (Dark Mode) */
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --bg-accent: #0ea5e9;
  --bg-red: #5f1914;

  --text-primary: #f1f5f9;
  /* Texto principal quase branco */
  --text-secondary: #e5ecf3;
  /* Texto secundário um pouco mais escuro */
  --text-tertiary: #94a3b8;
  /* Texto menos importante (cinza) */
  --text-light: #ffffff;
  --text-accent: #7dd3fc;
  --text-light-red: #dd9898;
  /* Vermelho claro para destaque negativo */
  --text-dark-green: #010402;
  /* Sombras (Dark Mode) */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);

  /* Arredondamentos e Transições */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-full: 9999px;
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Montserrat', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Tipografia */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--text-primary);
  transition: color var(--transition-normal);
}

h1 {
  font-family: 'Outfit', sans-serif;
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: 2.5rem;
  margin-bottom: 1.25rem;
}

h3 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
  transition: color var(--transition-normal);
  font-size: 1rem;
}

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

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

ul,
ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

img {
  max-width: 100%;
  height: auto;
}


hr {
  background-color: #3b5785;
  height: 1px;
  border: 0;
  margin-bottom: 10px;
}

.mr {
  margin-right: 10px;
}


.bg-green{
  background-color: #194f2c !important;
}

.bg-dark-green{
  background-color: #02443e !important;  
}

.bg-light-green{
  background-color: #264f63 !important;
}


.bg-brown{
  background-color: #5f240e!important;
}

.bg-purple{
  background-color: #411b7d!important;
}



/* ==========================================================================
   2. Layout & Helpers
   ========================================================================== */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
}

.section {
  padding: 3rem 0;
  background-color: var(--bg-primary);
  /* Garante a cor base */
  background-image: linear-gradient(to bottom,
      rgba(0, 0, 0, 0.4) 0%,
      /* Começa transparente (mostrando --bg-primary) */
      rgba(0, 0, 0, 0) 100%
      /* Termina com um preto levemente transparente */
    );
}



.section-title {
  text-align: center;
  margin-bottom: 2rem;
  position: relative;
  letter-spacing: 2px;
}

.section-dark .section-title {
  color: var(--text-light);
}

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  margin: 1rem auto 0;
  border-radius: var(--radius-full);
}

.section-subtitle{
  text-align: center; 
  margin-bottom: 3rem;
  font-size: 1.1rem;
  color: #aec4e3;
  font-weight: 600;
}

/* Helpers de Padding */
.p-0 {
  padding: 0 !important;
}

.p-1 {
  padding: 10px !important;
}


/* ==========================================================================
   3. Componentes
   ========================================================================== */

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  background-color: var(--bg-primary);
  /* Cor de fundo inicial opaca */
  z-index: 1000;
  transition: height var(--transition-fast),
    box-shadow var(--transition-fast),
    background-color var(--transition-normal),
    backdrop-filter var(--transition-normal);
  /* Adicionado backdrop-filter à transição */
}


.header.scrolled {
  background-color: rgba(15, 23, 42, 0.85);
  /* var(--bg-primary) com canal alfa para transparência. Ajuste 0.85 conforme necessário */
  backdrop-filter: blur(5px);
  /* Ajuste o valor de blur (10px) para a intensidade desejada */
  -webkit-backdrop-filter: blur(5px);
  /* Para compatibilidade com alguns navegadores mais antigos baseados em WebKit */
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

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

.logo img {
  height: 35px;
  margin-inline: 10px;
  margin-right: 20px;
}

.logo-text {
  font-size: 1.6rem;
  font-weight: 600;
  background: linear-gradient(30deg, var(--primary-light) 0%, var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Navegação */
.nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  display: block;
  padding: 0.5rem 1rem;
  color: var(--text-secondary);
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-color) 0%, var(--accent-color) 100%);
  transition: width var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-accent);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 30px;
}

.nav-button {
  margin-left: 1.5rem;
}

/* Botões */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  text-align: center;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
  outline: none;
}

.btn-primary {
  background-color: var(--primary-color-100);
  color: var(--text-primary);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  color: #0f172a;
}

.btn-secondary {
  background-color: var(--secondary-dark);
  color: var(--text-light);
}

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

.btn-icon {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

/* Menu Mobile Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.mobile-toggle:hover {
  color: var(--primary-color);
}


/* Scroll to Top Button */
.scroll-top-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  background-color: #3053a5;
  color: #ffffff;
  border: none;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast), background-color var(--transition-fast);
  z-index: 999;
}

.scroll-top-btn:hover {
  background-color: #1a2e5f;
}

.scroll-top-btn.visible {
  opacity: 1;
  visibility: visible;
}


/* Seção Hero */
.hero {
  padding-top: 10rem;
  padding-bottom: 5rem;
  background-color: var(--bg-secondary);
  position: relative;
  overflow: hidden;
  background-color: var(--bg-secondary);
  /* Garante a cor base [cite: 1154] */
  background-image: linear-gradient(to bottom, rgb(37 50 80 / 44%) 0%, rgb(22 8 40 / 38%) 100%);
  /* Termina com um preto levemente transparente */

}

.hero-content {
  grid-column: span 6;
  z-index: 1;
}

.hero-title {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  background: linear-gradient(90deg, var(--primary-color) 0%, var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  color: var(--text-secondary);
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

.hero-image {
  grid-column: span 6;
  position: relative;
  height: 500px;
}

.hero-image-main {
  position: absolute;
  top: 0;
  right: 0;
  width: 90%;
  height: 100%;
  object-fit: cover;
  clip-path: polygon(15% 0%, 85% 0%, 100% 15%, 100% 85%, 85% 100%, 15% 100%, 0% 85%, 0% 15%);




  /* Opção 1: Sombra mais profunda e definida */
  box-shadow: 0px 10px 25px -5px rgba(0, 0, 0, 0.35),
    /* Sombra principal mais escura e um pouco maior */
    0px 5px 15px -5px rgba(0, 0, 0, 0.2);
  /* Sombra secundária para mais profundidade */

  /* Opcional: Adicionar uma borda sutil para destacar as curvas */
  /* border: 2px solid rgba(255, 255, 255, 0.1); */

  transition: transform 0.3s ease-out, box-shadow 0.3s ease-out;
  /* Adicionado para possível hover */
}

.hero-image-circle {
  position: absolute;
  width: 180px;
  height: 180px;
  object-fit: cover;
}

.hero-image-circle-1 {
  top: 50px;
  left: 0;
  z-index: 2;
}

.hero-image-circle-2 {
  bottom: 50px;
  left: 50px;
  z-index: 2;
}


/* Seção de Pesquisa */
.research-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
  justify-content: center;
}

.research-tab {
  padding: 0.75rem 1.5rem;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--bg-tertiary);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.research-tab:hover {
  background-color: var(--bg-secondary);
  color: var(--text-accent);
  border-color: var(--text-tertiary);
}

.research-tab.active {
  background-color: var(--primary-color-100);
  color: var(--text-primary);
  border-color: var(--primary-color-100);
}


/* Cards de Destaque e Empresas */
.highlight-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background-color: var(--bg-secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-normal);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.card-accent {
  height: 5px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.card-content {
  padding: 2rem;
}

.card-empresas {
  padding: 0 !important;
  border-radius: 0 !important;
}

.bg-harpia {
  background-color: #4b10d3 !important;
}


.card-empresas img {
  width: 100% !important;
  background-color: #FFF;

}


.card-icon {
  font-size: 2rem;
  color: var(--icon-color);
  margin-bottom: 1rem;
}

.card-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.card-text {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}


.border-1 {
  border-left: 4px solid var(--primary-color);
}

.border-2 {
  border-left: 4px solid var(--accent-light);
}

.border-3 {
  border-left: 4px solid var(--secondary-dark-3);
}

.border-4 {
  border-left: 4px solid #00bfad;
}

.border-5 {
  border-left: 4px solid #7d91ff;
}

.border-6 {
  border-left: 4px solid #4a86a3;
}

.border-7 {
  border-left: 4px solid #a67462;
}

.bg-1 {
  background-color: var(--primary-color-100);
  color: var(--text-light);
}

.bg-2 {
  background-color: var(--accent-light) !important;
  color: var(--text-dark-green) !important;
  font-weight: 700 !important;
}

.bg-3 {
  background-color: var(--secondary-dark-2);
  color: var(--text-light);
}

.bg-4 {
  background-color: #00bfad;
  color: #000000;
}

.bg-5 {
  background-color: #2b45d1;
  color: #ffffff
}

.bg-6 {
  background-color: #264f63;
  color: #e7f7ff;
}

.bg-7 {
  background-color: #5f240e;
  color: var(--text-light);
}

.fw-500 {
  font-weight: 600 !important;
}

/* Seção Perfil */
.profile {
  background-color: var(--bg-tertiary);
}

.profile-image-container {
  grid-column: span 4;
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

.profile-image {
  width: 300px;
  height: 300px;
  border-radius: 80px;
  object-fit: cover;
  border: 5px solid #677a98;
  box-shadow: var(--shadow-lg);
}

.profile-content {
  grid-column: span 8;
}

.profile-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.stat {
  text-align: center;
  padding: 1.5rem;
  background-color: var(--bg-secondary);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-normal);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  transition: color var(--transition-normal);
}

/* Seção Disciplinas */
.course-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
  justify-content: center;
}

.course-tab {
  padding: 0.75rem 1.5rem;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--bg-tertiary);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.course-tab:hover {
  background-color: var(--bg-secondary);
  color: var(--text-accent);
  border-color: var(--text-tertiary);
}

.course-tab.active {
  background-color: var(--primary-color-100);
  color: var(--text-primary);
  border-color: var(--primary-color-100);
}

/* Seção de Pesquisa */

.course-content {
  display: none;
  background-color: #19202b;
  padding: 25px;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  border: 1px solid #333;
}

.course-content.active {
  display: block;
}

.course-header {
  display: flex;
  align-items: flex-start;
  margin-bottom: 20px;
  gap: 12px;
}

.course-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #202c3f;
  color: white;
  border-radius: var(--radius-md);
  font-size: 2rem;
  margin-right: 6px;
}


.course-icon i {
  color: var(--accent-light);
  padding-inline: 30px;
}




.course-title {
  margin: 0;
  font-size: 1.8em;
  font-weight: 600;
  color: #f5f5f5;
}

.course-subtitle {
  margin: 0;
  font-size: 1em;
  color: #a0a0a0;
  margin-bottom: 0;
}

.course-content>p {
  line-height: 1.6;
  color: #c0c0c0;
}

/* Componente Collapsible (Detalhes da Disciplina) */
.collapsible-section {
  margin-bottom: 1.5rem;
}

.collapsible-header {
  display: flex;
  align-items: center;
  cursor: pointer;
  padding: 0.5rem 0;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

.collapsible-header:hover,
.collapsible-header.open {
  color: var(--text-accent);
}

.collapsible-icon {
  margin-right: 0.75rem;
  transition: transform 0.3s ease;
}

.collapsible-title {
  font-weight: 500;
}

.collapsible-header.open .collapsible-icon {
  transform: rotate(90deg);
}

.collapsible-body {
  padding-left: 1.75rem;
  color: var(--text-secondary);
}

/* Abas internas das aulas (Aulas, Listas, Material) */
.lessons-section {
  margin-top: 30px;
}

.lessons-tabs-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
}

.lessons-tab-button {
  padding: 0.6rem 1.2rem;
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--bg-tertiary);
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 1.1rem;
  cursor: pointer;
  text-align: center;
  transition: color var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast);
}

.lessons-tab-button:hover {
  background-color: var(--bg-secondary);
  color: var(--text-accent);
  border-color: var(--text-tertiary);
}

.lessons-tab-button.active {
  background-color: var(--primary-color-100);
  color: var(--text-primary);
  border-color: var(--primary-color-100);
}

.lessons-tab-pane {
  display: none;
}

.lessons-tab-pane.active {
  display: block;
}

/* Lista de Aulas e Materiais */
.lessons-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.lesson-item {
  border-top: 1px solid var(--bg-tertiary);
  padding: 15px 25px;
  transition: background-color 0.3s ease;
  margin-inline: -25px;
}

/* NOVO CÓDIGO PARA O EFEITO LISTRADO */
.lessons-list .lesson-item:nth-child(even) {
  background-color: rgba(26, 43, 71, 0.4);
}


/* O link principal dentro do item - não precisa de muito estilo se for apenas container */
.lesson-item .lesson-content-link {
  text-decoration: none;
  color: inherit;
  display: block;
  /* Para ocupar o espaço disponível */
}

.lesson-info {
  padding-left: 3px;
}

.lesson-details {
  display: flex;
  flex-direction: column;
  gap: 8px;
  /* Aumentei um pouco o gap para a nova estrutura */
}

.lesson-title {
  font-size: 1.1em;
  font-weight: 500;
  color: #e0e0e0;
  display: flex;
  /* Para alinhar os spans internos */
  align-items: center;
  gap: 8px;
  /* Espaço entre os highlights do título */
}

.lesson-title-hilight {
  color: #fdfeff;
  background-color: #243e67;
  /* Cor base dos highlights */
  padding: 5px 10px;
  /* Ajuste o padding */
  border-radius: 4px;
  font-size: 0.85rem;
  /* Ajuste o tamanho da fonte */
  white-space: nowrap;
  /* Evita quebra de linha dentro do highlight */
  font-weight: 500;
  display: flex;
  align-items: center;
  letter-spacing: 0.06rem;
}

.lesson-title-hilight .class-icon {
  margin-right: 10px;
  ;
}

.lesson-title-hilight i {
  font-size: 1.2rem;
}


.lesson-file-type-pdf {
  background-color: #6b2626;
  color: #f3e7e7;
}

.lesson-file-type-link {
  background-color: #215d57;
  color: #f4f8ff;
}

.lesson-file-type-zip {
  background-color: #166991;
  color: #ffffff;
}

.lesson-file-type-asc {
  background-color: #415661;
  color: #f1fbff;
}

.lesson-file-type-video {
  background-color: #69200a;
  color: #f3e5e1;
}

.lesson-download {
  margin-left: auto;
  /* Empurra o ícone de download para a direita */
  background-color: #1c375e;
  /* Cor de fundo para o botão de download */
  cursor: pointer;
  padding: 5px 10px;
  /* Padding para o ícone parecer mais um botão */
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.lesson-download:hover {
  background-color: var(--primary-color-100);
  color: var(--text-primary);
}

.lesson-download i {
  font-size: 1.1rem;
  /* Tamanho do ícone de download */
  color: #e3e6ec;
  ;
}

.lesson-title-str {
  /* Ajustado para não ser mais o gatilho principal do colapso */
  font-size: 1.05em;
  color: var(--text-accent);
  font-weight: 500;
  margin: 0;
  margin-top: 8px;

  /* cursor: default;  Removido cursor pointer se não for mais clicável diretamente */
}

.lesson-title-std {
  font-weight: 600;
  color: var(--text-primary);
  margin-right: 5px;
}



/* Ajustes específicos para o header do colapsável da descrição, se necessário */
.lesson-description-trigger {
  /* Se precisar de padding menor ou fonte diferente do .collapsible-header padrão */
  padding: 0.4rem 0;
  /* Exemplo de padding menor */
  /* color: var(--text-tertiary); */
  /* Cor um pouco diferente, se desejar */
}

.lesson-description-trigger .collapsible-title {
  font-weight: 500;
  /* Mesmo peso do seu .collapsible-title original */
  font-size: 0.9em;
  /* Pode querer um pouco menor aqui */
}

.lesson-description-trigger,
.collapsible-header {
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}


/* O ícone já deve funcionar com seus estilos existentes para .collapsible-icon e .open .collapsible-icon */
/* .collapsible-icon { ... } */
/* .collapsible-header.open .collapsible-icon { transform: rotate(90deg); } */


/* Corpo da descrição colapsável */
.lesson-description-body {
  /* Seus estilos de .collapsible-body devem funcionar. Ex: padding-left */
  /* padding-left: 1.75rem; */
  /* Exemplo do seu CSS */
  color: var(--text-secondary);
  /* Exemplo do seu CSS */
}

.lesson-description-body .lesson-description {
  margin: 0;
  padding-top: 5px;
  font-size: 1em;
  color: var(--text-primary);
  line-height: 1.5;
}


/* Ícones genéricos (mantidos do seu CSS original, se ainda relevantes) */
.icon-lesson {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  border-radius: 4px;
  width: 35px;
  margin-right: 5px;
}

.icon-lesson .lesson-icon-inline {
  font-size: 1.4rem;
  transition: transform 0.3s ease;
}

.icon-white {
  color: var(--text-light) !important;
}

.icon-red {
  color: #e0b9b6 !important;
}

/* Estilos para o link/botão de download */
.lesson-download-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 12px;
  color: var(--text-secondary);
  background-color: var(--bg-tertiary);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: background-color var(--transition-fast), color var(--transition-fast);
  flex-shrink: 0;
  /* Impede que o botão encolha */
}

.lesson-download-link i {
  font-size: 1.1rem;
}

.lesson-download-link:hover {
  background-color: var(--primary-color-100);
  color: var(--text-primary);
}

/* Opcional: se você ainda quiser um leve feedback no item inteiro, mas diferente do botão */
.lesson-item:hover {
  background-color: rgba(26, 43, 71, 0.8)!important;
  /* Um hover mais sutil no item todo */
}

.lesson-item:hover .lesson-download-link {
  /* Mantém a cor original do botão mesmo com hover no item, a menos que o próprio botão esteja em hover */
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
}

.lesson-item:hover .lesson-download-link:hover {
  /* Garante que o hover do botão funcione */
  background-color: var(--primary-color-100);
  color: var(--text-primary);
}

.icon-white {
  color: var(--text-light) !important;
}

.icon-red {
  color: #e0b9b6 !important;
}


/* Divisor na lista de aulas */
.lessons-list .lesson-list-divider {
  padding: 0;
  text-align: left;
  list-style: none;
  margin-inline: -25px;
}

.lessons-list .lesson-list-divider span {
  font-weight: 600;
  font-size: 1.15em;
  color: #ffffff;
  background-color: #2d3c5e;
  padding: 7px 30px;
  
  display: inline-block;
  width: 100%;
}

/* Seção de Pesquisa */

.research-content {
  display: none;
}

.research-content.active {
  display: block;
}


.projects {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}


.project-card {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 2rem;
  background-color: var(--bg-secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: background-color var(--transition-normal);
}

.project-card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-card-content {
  padding: 2rem;
}

.project-card-title {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.project-card-subtitle {
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: 1rem;
}

.project-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.tag {
  padding: 0.25rem 0.75rem;
  background-color: var(--bg-tertiary);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  transition: background-color var(--transition-normal);
}



.publication-filters {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.publication-filter {
  padding: 0.5rem 1rem;
  background-color: var(--bg-secondary);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.publication-filter:hover {
  background-color: var(--bg-tertiary);
}

.publication-filter.active {
  background-color: var(--primary-color-100);
  color: white;
}

/*

.publication-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

 .publication-item {
  display: flex;
  gap: 2rem;
  padding: 1.5rem;
  background-color: var(--bg-secondary);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-normal);
}

.publication-year {
  flex-shrink: 0;
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--primary-color-100);
  color: white;
  font-weight: 700;
  border-radius: var(--radius-md);
}

.publication-content {
  flex-grow: 1;
}

.publication-title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.publication-authors {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  margin-bottom: 0.5rem;
  transition: color var(--transition-normal);
}

.publication-journal {
  font-size: 0.875rem;
  font-style: italic;
  color: var(--text-tertiary);
  transition: color var(--transition-normal);
} */


.publication-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  /* Espaçamento entre os itens da lista */
}

.publication-item {
  display: flex;
  gap: 1.5rem;
  padding: 1.5rem;
  background-color: var(--bg-secondary);
  border-radius: var(--radius-md);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

/* Ícone à esquerda */
.publication-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background-color: #23479b;
  color: #ced3db;
  border-radius: 50%;
  font-size: 1.25rem;
  display: none;
}

/* Detalhes da publicação */
.publication-details {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  /* Espaçamento entre título, autores e meta */
  flex-grow: 1;
}

.publication-title {
  font-size: 1.2rem;
  line-height: 1.4;
  font-weight: 500;
  margin: 0;
  letter-spacing: 0.02rem;
}

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

.publication-title a:hover {
  color: var(--primary-dark);
}

.publication-authors {
  font-size: 0.9rem;
  color: #ffffff91;
  margin: 0;
  text-transform: uppercase;
}

/* Meta-informações (Revista, Ano) */
.publication-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
}

/* Botão de Ação (Ver DOI) */
.publication-actions {
  margin-top: auto;
  /* Empurra o botão para o final do card */
  padding-top: 1rem;
}

.publication-journal,
.publication-year {
  display: inline-block;
  padding: 0.5rem 1.2rem;
  font-size: 0.8rem;
  font-weight: 600;
  line-height: 1.2rem;
  border-radius: var(--radius-full);
  /* Deixa os cantos totalmente arredondados */
  text-transform: uppercase;
  letter-spacing: 0.5px;
  text-align: center;
}

/* Cor para a tag do Ano */
.publication-year {
  background-color: var(--bg-tertiary);
}

.acessar-paper {
  display: inline-block;
  padding: 0.5rem 1.2rem;
  font-size: 0.8rem;
  font-weight: 600;
  line-height: 1.2rem;
  border-radius: var(--radius-full);
  /* Deixa os cantos totalmente arredondados */
  text-transform: uppercase;
  letter-spacing: 0.5px;
  text-align: center;
  background-color: var(--bg-tertiary);
}

.acessar-paper i {
  margin-right: 5px;
}

.acessar-paper a{
  color: var(--text-primary);
}

.acessar-paper a:hover{
  color: var(--bg-accent);
}



.btn-doi {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.8rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  background-color: var(--bg-tertiary);
  border: 1px solid transparent;
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-doi:hover {
  color: var(--text-light);
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

/* ==========================================================================
   Estilos para Abas Aninhadas de Publicações (Novo Estilo)
   ========================================================================== */

/* Container das abas */
.publication-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  /* Um pouco menos de espaço entre as pílulas */
  margin-bottom: 2rem;
  justify-content: center;
}

/* Estilo base para cada aba (formato de pílula) */
.publication-tab {
  padding: 0.4rem 1.2rem;
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius-full);
  /* Chave para o formato de pílula */
  transition: background-color var(--transition-fast), color var(--transition-fast);
  border: none;
  /* Remove a borda anterior */

  /* Estilo INATIVO (baseado na imagem) */
  background-color: var(--bg-secondary);
  /* Fundo escuro */
  color: var(--text-secondary);
  /* Texto azul claro */
}

/* Efeito ao passar o mouse em uma aba INATIVA */
.publication-tab:not(.active):hover {
  background-color: var(--bg-tertiary);
  /* Fundo levemente mais claro */
  color: var(--primary-dark);
  /* Texto um pouco mais brilhante */
}

/* Estilo da aba ATIVA (baseado na imagem) */
.publication-tab.active {
  background-color: #3053a5;
  color: var(--text-primary);
  /* Texto branco */
}

/* Mantém a visibilidade do conteúdo (sem alteração) */
.publication-content {
  display: none;
}

.publication-content.active {
  display: block;
}

.orientado {
  text-transform: capitalize;  
  font-size: 1.1rem;
  margin-right: 3px;
}




/* Seção Empresas */
#empresas .card .company-logo {
  display: block;
  margin-left: auto;
  margin-right: auto;
  /* max-width: 180px; */
  max-height: 90px;
  object-fit: contain;
  margin-bottom: 2rem;
  transition: transform 0.3s ease-out;
  padding: 1rem;
}

#empresas .card .company-logo:hover {
  transform: scale(1.08);
}

/* Placa de fundo para logos transparentes */

/* Footer */
.footer {
  background-color: var(--bg-secondary);
  padding: 2.5rem 0 2rem;
  transition: background-color var(--transition-normal);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 3rem;
}

.footer-logo {

  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.footer-text {
  color: var(--text-primary);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}


.footer-social {
  display: flex;
  gap: 1rem;
}

.social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  border-radius: var(--radius-full);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.social-link:hover {
  background-color: var(--primary-color);
  color: white;
}

.footer-title {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-link {
  margin-bottom: 0.75rem;
}

.footer-link i {
  margin-right: 5px;
  opacity: 0.8;
  font-size: 0.8rem;
}


.footer-link a {
  color: var(--text-accent);
  font-size: 0.875rem;
}

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

.footer-contact-item-top {
  align-items: self-start !important;
}



.footer-contact-item {
  display: flex;
  gap: 1rem;
  align-items: center;
  /* Esta linha é a chave para o alinhamento vertical */
  margin-bottom: 1.5rem;
}

.footer-contact-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-tertiary);
  color: #b9cdd5;
  border-radius: var(--radius-full);
  flex-shrink: 0;
  font-size: 1.2rem;
}

.footer-bottom {
  text-align: center;
  padding: 2rem;
  /* border-top: 1px solid var(--bg-tertiary); */
  color: #b5c6ef;
  font-size: 1rem;
}

/* ==========================================================================
   4. Animações
   ========================================================================== */

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes bounce {

  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateY(0);
  }

  40% {
    transform: translateY(-10px);
  }

  60% {
    transform: translateY(-5px);
  }
}


/* ==========================================================================
   5. Media Queries (Responsividade)
   ========================================================================== */

@media (max-width: 1024px) {

  h1,
  .hero-title {
    font-size: 3rem;
  }

  h2 {
    font-size: 2.25rem;
  }

  .project-card {
    grid-template-columns: 1fr;
  }

  .project-card-image {
    height: 300px;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {

  .lesson-item:hover {
    background-color: inherit !important;
    transform: none !important;
  }
  
  /* Mantém apenas o hover no botão de download */
  .lesson-item:hover .lesson-download:hover {
    background-color: var(--primary-color-100);
    color: var(--text-primary);
  }

  p {
    font-size: 1rem !important;
  }

  .logo-text {
    font-size: 1.2rem !important;
  }

  .header-container {
    padding-left: 0 !important;
  }

  .mobile-toggle {
    display: block;
  }


  .logo img {
    margin-left: 30px !important;
  }

  .nav {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    height: 0;
    background-color: var(--bg-primary);
    flex-direction: column;
    align-items: flex-start;
    overflow: hidden;
    transition: height var(--transition-normal);
    box-shadow: var(--shadow-md);
  }

  .nav.active {
    height: calc(100vh - 80px);
    padding: 2rem;
  }

  .nav-list {
    flex-direction: column;
    width: 100%;
  }

  .nav.active .nav-link {
    display: block;
    padding: 0.9rem 1.5rem;
    margin-bottom: 0.5rem;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    transition: background-color var(--transition-fast), color var(--transition-fast);
    font-size: 1.15rem;
  }

  .nav.active .nav-link::after {
    display: none;
  }

  .nav.active .nav-link:hover,
  .nav.active .nav-link:focus {
    background-color: var(--bg-tertiary);
    color: var(--text-accent);
  }

  .nav.active .nav-link.active {
    background-color: var(--primary-color-100);
    color: var(--text-primary);
    font-weight: 600;
  }

  /* ESTILOS PARA O BOTÃO "CONTATO" NO MENU MOBILE ATIVO */
  .nav.active .nav-button {
    display: block;
    /* Faz o botão se comportar como um bloco */
    width: 100%;
    /* Ocupa 100% da largura disponível no container .nav.active */
    text-align: center;
    /* Centraliza o texto dentro do botão */
    padding: 0.9rem 1.5rem;
    /* Mesmo padding vertical e horizontal dos .nav-link */
    margin-top: 1rem;
    /* Um pouco mais de margem para destacá-lo, ajuste conforme necessário */
    margin-left: 0;
    /* Remove a margem esquerda que ele tem na versão desktop */
    margin-right: 0;
    /* Remove qualquer margem direita */
    background-color: #1c6d68;
    color: var(--text-primary);
    border-radius: var(--radius-md);
    /* Mesmo border-radius dos .nav-link */
    box-sizing: border-box;
    /* Importante para que o padding não aumente a largura além de 100% */
  }

  .nav.active .nav-button:hover,
  .nav.active .nav-button:focus {
    background-color: var(--primary-dark);
    /* Efeito hover */
  }

  .grid,
  .profile-stats {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 7rem;
  }

  .hero-content,
  .profile-image-container,
  .profile-content {
    grid-column: span 12;
  }

  .hero-image {
    display: none;
    /* Oculta a imagem no mobile */
  }

  .profile-image-container {
    margin-bottom: 2rem;
  }

  .profile-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .lessons-tabs-nav {
    flex-direction: column;
    align-items: stretch;
    border-bottom: none;
    gap: 0.5rem;
  }

  .lessons-tab-button {
    width: 100%;
    text-align: center;
  }

  .hero-title {
    width: 95%;
    /* Define a largura do elemento para 95% do seu contêiner pai */
    margin-left: auto;
    /* Centraliza o bloco do título horizontalmente */
    margin-right: auto;
    /* Centraliza o bloco do título horizontalmente */
    /* text-align: center; */
    /* Adicione esta linha se quiser que o TEXTO DENTRO do título também seja centralizado */
    /* Por padrão, o texto dentro do h1 será alinhado à esquerda do bloco de 95% */
  }

  .collapsible-header,
  .lesson-description-trigger {
    transition: none !important;
  }
  
  .collapsible-body,
  .lesson-description-body {
    transition: none !important;
  }

}

@media (max-width: 480px) {


  .logo-text {
    font-size: 1.2rem !important;
  }

  .header-container {
    padding-left: 0 !important;
  }


  p {
    font-size: 1rem !important;
  }

  h1,
  .hero-title {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .profile-stats,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .course-tabs,
  .research-tabs {
    flex-direction: column;
  }

  .lessons-tab-button {
    padding: 0.5rem 0.8rem;
    font-size: 0.9rem;
  }

  .hero-title {
    width: 90vw;
    /* A largura de 95% e as margens automáticas da regra acima (max-width: 768px) ainda se aplicarão,
         a menos que você queira um comportamento diferente para telas extra pequenas. */
  }
}