/* ebookespecifico.css - Estilos para a página de ebook específico */

/* ==========================================================================
   VARIÁVEIS E ESTILOS BASE
   ========================================================================== */
:root {
  /* Herda as variáveis do index.css */
  --bg-primary: #000000;
  --bg-secondary: #121212;
  --bg-tertiary: #1E1E1E;
  --text-primary: #FFFFFF;
  --text-secondary: #B3B3B3;
  --accent: #FFD700;
  --accent-light: #FFE44D;
  --accent-dark: #D4AF37;
  --bg-gradient-start: #000000;
  --bg-gradient-end: #121212;
  --header-height: 100px;
  --mobile-header-height: 70px;
  --border-radius: 8px;
  --box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  --transition: all 0.3s ease;
}

/* ==========================================================================
   SEÇÃO HERO DO CATÁLOGO
   ========================================================================== */
.catalog-hero {
  padding: calc(var(--header-height) + 80px) 0 100px;
  text-align: center;
  background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%), 
              url('assets/ebook-bg.jpg') no-repeat center/cover;
  position: relative;
  overflow: hidden;
}

.catalog-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 0;
}

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

.catalog-hero h1 {
  font-size: 3.5rem;
  margin-bottom: 20px;
  line-height: 1.2;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.section-subtitle {
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto;
  font-size: 1.2rem;
}

/* ==========================================================================
   SEÇÃO DE INFORMAÇÕES DE ACESSO
   ========================================================================== */
.access-info {
  padding: 60px 0;
  background-color: var(--bg-tertiary);
  position: relative;
}

.info-box {
  display: flex;
  align-items: center;
  gap: 30px;
  background-color: var(--bg-secondary);
  padding: 30px;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  max-width: 900px;
  margin: 0 auto;
  border: 1px solid rgba(255, 215, 0, 0.1);
}

.info-box i {
  font-size: 3rem;
  color: var(--accent);
  min-width: 60px;
}

.info-box h3 {
  margin-bottom: 15px;
  font-size: 1.8rem;
}

.info-box p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   EBOOK EM DESTAQUE
   ========================================================================== */
.featured-ebook {
  padding: 80px 0;
  background-color: var(--bg-primary);
}

.featured-content {
  display: flex;
  gap: 60px;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.featured-image {
  flex: 1;
  position: relative;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  border: 1px solid rgba(255, 215, 0, 0.2);
}

.featured-image:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(255, 215, 0, 0.2);
}

.featured-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s ease;
}

.featured-image:hover img {
  transform: scale(1.03);
}

.ebook-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  background-color: var(--accent);
  color: var(--black);
  padding: 10px 20px;
  border-radius: 30px;
  font-weight: 700;
  box-shadow: 0 5px 15px rgba(255, 215, 0, 0.3);
  z-index: 1;
  font-size: 0.9rem;
}

.featured-text {
  flex: 1;
}

.ebook-description {
  margin: 1.5rem 0;
  font-size: 1.1rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.ebook-stats {
  display: flex;
  gap: 2rem;
  margin: 2rem 0;
}

.stat {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.stat i {
  color: var(--accent);
}

.access-buttons {
  display: flex;
  gap: 15px;
  margin-top: 30px;
}

/* ==========================================================================
   CAPÍTULOS DO EBOOK
   ========================================================================== */
.ebook-chapters {
  padding: 80px 0;
  background-color: var(--bg-secondary);
  position: relative;
}

.ebook-chapters::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--accent) 50%, transparent 100%);
  opacity: 0.3;
}

.chapters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 60px;
}

.chapter-card {
  background-color: var(--bg-tertiary);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  box-shadow: var(--box-shadow);
  border: 1px solid rgba(255, 215, 0, 0.1);
}

.chapter-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(255, 215, 0, 0.15);
}

.chapter-number {
  background-color: var(--accent);
  color: var(--black);
  font-size: 2rem;
  font-weight: bold;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 80px;
}

.chapter-content {
  padding: 25px;
  flex: 1;
}

.chapter-content h3 {
  margin-bottom: 15px;
  font-size: 1.3rem;
}

.chapter-content p {
  color: var(--text-secondary);
  margin-bottom: 20px;
  font-size: 0.95rem;
  line-height: 1.6;
}

.chapter-meta {
  display: flex;
  justify-content: space-between;
  margin-bottom: 20px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.chapter-meta i {
  color: var(--accent);
  margin-right: 5px;
}

/* ==========================================================================
   CATÁLOGO DE EBOOKS
   ========================================================================== */
.ebook-catalog {
  padding: 80px 0;
  background-color: var(--bg-primary);
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 30px;
}

.ebook-card {
  background-color: var(--bg-secondary);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  position: relative;
}

.ebook-card.highlight {
  border: 2px solid var(--accent);
}

.ebook-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(255, 215, 0, 0.2);
}

.ebook-badge {
  position: absolute;
  top: 15px;
  right: 15px;
  background-color: var(--accent);
  color: var(--black);
  padding: 5px 15px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  z-index: 1;
}

.ebook-image {
  height: auto;
  min-height: 200px;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

.ebook-image img {
  width: 100%;
  height: auto;
  object-fit: contain;
  transition: transform 0.5s ease;
}

.ebook-card:hover .ebook-image img {
  transform: scale(1.05);
}

.ebook-info {
  padding: 20px;
}

.ebook-category {
  display: inline-block;
  padding: 5px 10px;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.ebook-category.beginner {
  background-color: rgba(0, 128, 0, 0.2);
  color: lightgreen;
}

.ebook-category.intermediate {
  background-color: rgba(255, 165, 0, 0.2);
  color: orange;
}

.ebook-category.advanced {
  background-color: rgba(255, 0, 0, 0.2);
  color: lightcoral;
}

.ebook-category.algorithms {
  background-color: rgba(0, 0, 255, 0.2);
  color: lightblue;
}

.ebook-info h3 {
  font-size: 1.3rem;
  margin-bottom: 10px;
}

.ebook-excerpt {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 15px;
  line-height: 1.5;
}

.ebook-meta {
  display: flex;
  gap: 15px;
  margin-bottom: 15px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.ebook-meta span {
  display: flex;
  align-items: center;
  gap: 5px;
}

.ebook-actions {
  display: flex;
  gap: 10px;
}

.cta-faq {
  text-align: center;
  margin-top: 50px;
}

/* ==========================================================================
   VANTAGENS DA PLATAFORMA
   ========================================================================== */
.platform-features {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
  position: relative;
}

.platform-features::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('assets/dots-pattern.png') repeat;
  opacity: 0.03;
  z-index: 0;
}

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

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 60px;
}

.feature {
  background-color: var(--bg-secondary);
  padding: 30px;
  border-radius: var(--border-radius);
  transition: var(--transition);
  box-shadow: var(--box-shadow);
  text-align: center;
  border: 1px solid rgba(255, 215, 0, 0.1);
}

.feature:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(255, 215, 0, 0.15);
}

.feature i {
  font-size: 2.5rem;
  color: var(--accent);
  margin-bottom: 20px;
  display: inline-block;
}

.feature h3 {
  font-size: 1.3rem;
  margin-bottom: 15px;
}

.feature p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ==========================================================================
   BOTÕES
   ========================================================================== */
.btn-primary {
  background-color: var(--accent);
  color: var(--black);
  padding: 12px 25px;
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: 1.1rem;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 2px solid transparent;
}

.btn-primary:hover {
  background-color: transparent;
  color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(255, 215, 0, 0.3);
}

.btn-outline {
  background-color: transparent;
  color: var(--accent);
  border: 2px solid var(--accent);
  padding: 12px 25px;
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: 1.1rem;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-outline:hover {
  background-color: var(--accent);
  color: var(--black);
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(255, 215, 0, 0.3);
}

/* ==========================================================================
   RESPONSIVIDADE
   ========================================================================== */
@media (max-width: 1200px) {
  .catalog-hero h1 {
    font-size: 3rem;
  }
  
  .featured-content {
    gap: 40px;
  }
  
  .info-box h3 {
    font-size: 1.6rem;
  }
}

@media (max-width: 992px) {
  .featured-content {
    flex-direction: column;
    gap: 40px;
  }
  
  .featured-image {
    max-width: 500px;
    margin: 0 auto;
  }
  
  .info-box {
    flex-direction: column;
    text-align: center;
    padding: 25px;
  }
  
  .info-box i {
    margin-bottom: 15px;
  }
  
  .access-buttons {
    flex-direction: column;
  }
  
  .btn-primary, 
  .btn-outline {
    width: 100%;
    text-align: center;
    justify-content: center;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: var(--mobile-header-height);
  }
  
  .catalog-hero {
    padding: calc(var(--header-height) + 50px) 0 80px;
  }
  
  .catalog-hero h1 {
    font-size: 2.2rem;
  }
  
  .section-subtitle {
    font-size: 1.1rem;
  }
  
  .chapters-grid,
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .chapter-card {
    flex-direction: column;
  }
  
  .chapter-number {
    min-width: 100%;
    height: 60px;
    font-size: 1.8rem;
  }
  
  .chapter-content h3 {
    font-size: 1.2rem;
  }
  
  .feature {
    padding: 25px 20px;
  }
  
  .feature h3 {
    font-size: 1.2rem;
  }
  
  .ebook-stats {
    flex-wrap: wrap;
    gap: 1rem;
  }
  
  .stat {
    flex: 1 1 45%;
  }
  
  .catalog-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  }
}

@media (max-width: 576px) {
  .catalog-hero {
    padding: calc(var(--header-height) + 30px) 0 60px;
  }
  
  .catalog-hero h1 {
    font-size: 1.8rem;
    margin-bottom: 15px;
  }
  
  .section-subtitle {
    font-size: 1rem;
  }
  
  .ebook-badge {
    top: 10px;
    right: 10px;
    font-size: 0.8rem;
    padding: 8px 15px;
  }
  
  .stat {
    flex-direction: column;
    align-items: flex-start;
    gap: 5px;
    flex: 1 1 100%;
  }
  
  .featured-ebook,
  .ebook-chapters,
  .platform-features,
  .ebook-catalog {
    padding: 60px 0;
  }
  
  .chapter-content {
    padding: 20px;
  }
  
  .chapter-meta {
    flex-direction: column;
    gap: 10px;
  }
  
  .catalog-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .ebook-image {
    min-height: 180px;
  }
  
  .ebook-info h3 {
    font-size: 1.2rem;
  }
  
  .feature i {
    font-size: 2rem;
  }
  
  .info-box {
    padding: 20px;
  }
  
  .info-box h3 {
    font-size: 1.4rem;
  }
}

@media (max-width: 400px) {
  .catalog-hero h1 {
    font-size: 1.6rem;
  }
  
  .featured-text h2 {
    font-size: 1.5rem;
  }
  
  .ebook-description {
    font-size: 1rem;
  }
  
  .access-buttons {
    gap: 10px;
  }
  
  .btn-primary,
  .btn-outline {
    padding: 10px 15px;
    font-size: 1rem;
  }
  
  .chapter-number {
    height: 50px;
    font-size: 1.5rem;
  }
  
  .feature {
    padding: 20px 15px;
  }
  
  .feature h3 {
    font-size: 1.1rem;
  }
  
  .feature p {
    font-size: 0.9rem;
  }
}