/* backend/static/css/blog_post.css */

/* Versão: 2.0.0 - BTOS Editorial Experience (DNA Edition)
   Foco: Legibilidade Premium, Tipografia Poppins/Inter e Sombras DNA */

/* --- Contêiner Principal do Artigo --- */
.blog-post-wrapper {
  max-width: 900px;
  padding: var(--spacing-xl) 0;
}

.blog-post-container {
  max-width: 850px;
  /* Largura otimizada para a "Escultura de Informação" */
  margin: var(--spacing-lg) auto;
  padding: var(--spacing-xl) var(--spacing-lg);
  border: 1px solid var(--border-color-light);
  border-radius: var(--radius-lg);

  background-color: var(--color-bg-container);
  box-shadow: var(--shadow-dna-md);
}

/* --- Cabeçalho do Post --- */
.post-header {
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

.post-header h1 {
  margin-bottom: var(--spacing-sm);

  font-family: var(--font-family-headings);
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--brand-dark);
  letter-spacing: -0.04em;
}

.btos-breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
  margin: 0 0 1.2rem 0;
}

.btos-breadcrumb-item {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.btos-breadcrumb-item::after {
  content: "/";
  margin-left: 0.5rem;
  color: #94a3b8;
}

.btos-breadcrumb-item:last-child::after {
  content: "";
  margin: 0;
}

.btos-breadcrumb-item a {
  color: #475569;
  text-decoration: none;
}

.btos-breadcrumb-item.is-current span {
  font-weight: 700;
  color: #0f172a;
}

.post-meta-btos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 15px;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
}

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

.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  align-items: center;

  margin-bottom: var(--spacing-lg);

  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

.post-meta span {
  display: inline-flex;
  align-items: center;
}

.post-meta .bi {
  margin-right: 8px;
  color: var(--brand-primary);
}

.post-category a {
  padding: 6px 14px;
  border: 1px solid var(--border-color-light);
  border-radius: 50px;

  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text-default);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.5px;

  background-color: var(--color-bg-light);

  transition: var(--transition-fast);
}

.post-category a:hover {
  transform: translateY(-2px);
  border-color: var(--brand-primary);
  color: var(--color-text-white);
  background-color: var(--brand-primary);
}

/* --- Imagem de Destaque e Áudio --- */
.post-main-image {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-dna-md);
  margin-bottom: var(--spacing-lg);
}

.post-audio-box {
  background: rgb(19 50 188 / 3%);
  border-left: 4px solid var(--brand-primary);
}

.post-audio-player {
  width: 100%;
}

.blog-post-container .img-fluid {
  margin-bottom: var(--spacing-lg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-dna-sm);
}

.audio-player-container {
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-md);
  border: 1px solid var(--border-color-light);
  border-radius: var(--radius-md);

  background: var(--color-bg-light);
}

/* --- Conteúdo Principal do Post (Renderizado do Markdown) --- */
.post-content {
  font-family: var(--font-family-sans-serif);
  font-size: 1.15rem;
  line-height: 1.8;
  color: var(--color-text-default);
}

.post-content p {
  margin-bottom: var(--spacing-md);
}

.post-content h2,
.post-content h3,
.post-content h4 {
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);

  font-family: var(--font-family-headings);
  font-weight: 700;
  line-height: 1.2;
  color: var(--brand-dark);
}

.post-content h2 {
  padding-bottom: var(--spacing-xs);
  border-bottom: 3px solid var(--brand-c);
  /* Azul C - Conformidade/Precisão */
  font-size: 2.2rem;
}

.post-content h3 {
  font-size: 1.8rem;
}

.accordion-btos {
  margin-top: var(--spacing-xl);
  border-top: 1px solid var(--border-color-light);
}

.accordion-item-btos {
  border-bottom: 1px solid var(--border-color-light);
}

.accordion-header-btos {
  width: 100%;
  padding: var(--spacing-md) 0;
  background: transparent;
  border: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-family-headings);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--brand-dark);
  transition: var(--transition-fast);
}

.accordion-header-btos:hover {
  color: var(--brand-primary);
}

.accordion-header-btos i {
  transition: transform 0.3s ease;
}

.accordion-item-btos.active i {
  transform: rotate(180deg);
}

.accordion-content-btos {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
  color: var(--color-text-default);
}

.accordion-item-btos.active .accordion-content-btos {
  max-height: 1000px;
  padding-bottom: var(--spacing-md);
}

.post-content a {
  border-bottom: 2px solid rgb(19 50 188 / 20%);

  font-weight: 600;
  color: var(--brand-primary);
  text-decoration: none;

  transition: var(--transition-fast);
}

.post-content a:hover {
  border-bottom-color: var(--brand-primary-hover);
  color: var(--brand-primary-hover);
}

.post-content blockquote {
  margin: var(--spacing-lg) 0;
  padding: var(--spacing-md) var(--spacing-lg);
  border-left: 6px solid var(--brand-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;

  font-size: 1.25rem;
  font-style: italic;
  color: var(--color-text-default);

  background-color: var(--color-bg-light);
}

.post-content strong {
  font-weight: 700;
  color: var(--brand-dark);
}

/* --- Navegação e Posts Relacionados --- */
.related-posts-btos {
  margin-top: var(--spacing-xl);
  padding: var(--spacing-lg);
  background: var(--color-bg-light);
  border-radius: var(--radius-lg);
}

.related-link {
  display: block;
  padding: 12px 0;
  border-bottom: 1px solid rgb(0 0 0 / 5%);
  font-weight: 600;
  color: var(--brand-dark);
}

.related-link:hover {
  color: var(--brand-primary);
  padding-left: 8px;
}

.post-actions-cta {
  margin-top: var(--spacing-lg);
  padding: var(--spacing-md);
  border: 1px solid var(--border-color-light);
  border-radius: var(--radius-lg);
  background: #fff;
}

.post-actions-copy {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-muted);
  font-size: 0.98rem;
}

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

.post-actions-row .btn-btos-primary {
  flex: 2 1 280px;
}

.post-actions-row .btn-btos-secondary {
  flex: 1 1 220px;
}

.ebook-promo-card {
  margin-top: var(--spacing-xl);
  border: 1px solid var(--border-color-light);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #fff 0%, #f8f9fa 100%);
  padding: var(--spacing-lg);
}

.ebook-promo-grid {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: var(--spacing-md);
  align-items: start;
}

.ebook-promo-cover {
  width: 140px;
  max-width: 100%;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-dna-md);
}

.ebook-promo-title {
  margin: 0 0 8px 0;
}

.ebook-promo-copy {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
}

.back-to-blog {
  display: inline-flex;
  align-items: center;

  margin-top: var(--spacing-lg);

  font-weight: 700;
  color: var(--brand-primary);

  transition: var(--transition-fast);
}

.back-to-blog:hover {
  transform: translateX(-5px);
  color: var(--brand-primary-hover);
}

.related-posts {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border-color-light);
}

.related-posts h4 {
  margin-bottom: var(--spacing-md);
  font-family: var(--font-family-headings);
  font-size: 1.5rem;
  color: var(--brand-dark);
}

/* --- Responsividade --- */
@media (width <=768px) {
  .container.blog-post-wrapper {
    padding-top: var(--spacing-lg);
    padding-right: var(--spacing-md);
    padding-bottom: var(--spacing-lg);
    padding-left: max(1.25rem, calc(env(safe-area-inset-left) + 0.875rem));
  }

  .blog-post-container {
    margin: var(--spacing-sm) auto;
    padding: var(--spacing-md);
    border: none;
    border-radius: 0;
  }

  .post-header h1 {
    font-size: 2.2rem;
  }

  .post-content {
    font-size: 1.05rem;
  }

  .ebook-promo-grid {
    grid-template-columns: 1fr;
  }

  .post-actions-row .btn-btos-primary,
  .post-actions-row .btn-btos-secondary {
    flex: 1 1 100%;
    width: 100%;
    text-align: center;
  }
}

/* barra - respiro  */
.post-content blockquote p {
  margin-bottom: 0.75rem;
}

/* --- Calculadora ROI --- */
#roi-calculator {
  border: 1px solid var(--border-color-light);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
  background: var(--color-bg-light);
}

#roi-calculator h3 {
  margin: 0 0 var(--spacing-md) 0;
  font-size: 1.1rem;
  border: none;
  padding: 0;
}

.roi-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  margin-bottom: var(--spacing-md);
}

.roi-grid label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.9rem;
  font-weight: 600;
}

.roi-grid input {
  padding: 8px;
  border: 1px solid var(--border-color-light);
  border-radius: var(--radius-sm);
  font-size: 1rem;
}

#roi-result {
  background: #fff;
  border: 1px solid var(--border-color-light);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  line-height: 2;
}

.roi-economia {
  color: var(--brand-primary);
}

@media (max-width: 768px) {
  .roi-grid {
    grid-template-columns: 1fr;
  }
}