/* ============================================================
   Trivale Engenharia — Blog
   Carregado depois de style.css nas páginas de /blog/. Reaproveita
   as variáveis, fontes e componentes do site (.btn, .eyebrow,
   .section-head, .mid-cta, .reveal etc.) e acrescenta só o que é
   específico de conteúdo editorial: cabeçalho de blog, cartões de
   categoria/artigo, tipografia de corpo de texto, caixa de autoria
   e avisos legais/técnicos.
   ============================================================ */

/* ---------- Cabeçalho das páginas do blog (hub, categoria, artigo) ---------- */
.blog-hero{
  background: var(--graphite);
  color: var(--white);
  padding: 56px 0 44px;
  position: relative;
  overflow: hidden;
}
.blog-hero::before{
  content: "";
  position: absolute; inset: 0;
  background-image: var(--hex-pattern);
  background-size: 180px 180px;
  opacity: 0.05;
  mix-blend-mode: overlay;
}
.blog-hero .container{ position: relative; z-index: 1; }
.blog-hero h1{
  font-size: clamp(30px, 4.2vw, 44px);
  color: var(--white);
  margin: 12px 0 14px;
  max-width: 760px;
}
.blog-hero p{
  color: rgba(255,255,255,0.68);
  font-size: 16.5px;
  max-width: 640px;
}
.breadcrumb{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,0.55);
  margin-bottom: 18px;
}
.breadcrumb a{ color: rgba(255,255,255,0.8); }
.breadcrumb a:hover{ color: var(--white); }
.breadcrumb span[aria-hidden]{ opacity: 0.5; }
.breadcrumb .current{ color: rgba(255,255,255,0.55); }
/* breadcrumb claro, para usar sobre fundo branco */
.breadcrumb.on-light{ color: var(--gray); }
.breadcrumb.on-light a{ color: var(--gray); }
.breadcrumb.on-light a:hover{ color: var(--blue-deep); }
.breadcrumb.on-light .current{ color: var(--gray-light); }

/* ---------- Grade de categorias (hub do blog) ---------- */
.category-grid{
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}
.category-card{
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 26px 24px;
  background: var(--white);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.category-card:hover{
  border-color: rgba(14,111,184,0.35);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.category-card .cat-icon{
  width: 42px; height: 42px;
  border-radius: var(--radius-sm);
  background: rgba(43,164,244,0.1);
  color: var(--blue-deep);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 2px;
}
.category-card h3{ font-size: 17.5px; }
.category-card p{ color: var(--gray); font-size: 14px; flex-grow: 1; }
.category-card .cat-count{
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gray-light);
}
.category-card .cat-link{
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-title); font-weight: 600; font-size: 14px;
  color: var(--blue-deep);
}

/* ---------- Grade de artigos (últimos posts / página de categoria) ---------- */
.article-grid{
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.article-card{
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.article-card:hover{
  border-color: rgba(14,111,184,0.3);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.article-card .art-media{
  position: relative;
  aspect-ratio: 16/10;
  background: var(--graphite);
  overflow: hidden;
}
.article-card .art-media img{
  width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(8%) contrast(1.02);
  transition: transform .4s ease;
}
.article-card:hover .art-media img{ transform: scale(1.035); }
.article-card .art-cat{
  position: absolute; left: 12px; top: 12px;
  background: rgba(6,35,54,0.82);
  color: var(--blue-light);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 9px;
  border-radius: var(--radius-sm);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}
.article-card .art-body{ padding: 18px 20px 22px; display: flex; flex-direction: column; gap: 8px; flex-grow: 1; }
.article-card h3{ font-size: 16.5px; line-height: 1.32; }
.article-card h3 a{ color: var(--graphite); }
.article-card h3 a:hover{ color: var(--blue-deep); }
.article-card p{ color: var(--gray); font-size: 13.5px; flex-grow: 1; }
.article-card .art-meta{
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--gray-light);
  text-transform: uppercase;
}

/* ---------- Aviso "conteúdo em produção" (categorias/hub ainda sem posts) ---------- */
.coming-soon{
  border: 1px dashed rgba(26,26,26,0.18);
  border-radius: var(--radius);
  padding: 22px 24px;
  color: var(--gray);
  font-size: 14.5px;
  background: var(--paper);
}

/* ---------- Corpo do artigo ---------- */
.article-layout{
  display: grid;
  grid-template-columns: minmax(0, 720px) minmax(220px, 260px);
  gap: 56px;
  align-items: start;
}
.article-layout > *{ min-width: 0; }
.article-prose{ font-size: 16.5px; line-height: 1.75; color: var(--graphite); }
.article-prose h2{
  font-size: 24px;
  margin: 44px 0 16px;
  scroll-margin-top: 90px;
}
.article-prose h3{
  font-size: 19px;
  margin: 32px 0 12px;
  scroll-margin-top: 90px;
}
.article-prose p{ margin-bottom: 18px; color: var(--gray); }
.article-prose p strong{ color: var(--graphite); }
.article-prose ul, .article-prose ol{ margin: 0 0 20px 22px; color: var(--gray); }
.article-prose li{ margin-bottom: 8px; }
.article-prose li::marker{ color: var(--blue-deep); }
.article-prose a{ color: var(--blue-deep); text-decoration: underline; text-underline-offset: 2px; }
.article-prose figure{ margin: 28px 0; }
.article-prose figure img{ width: 100%; border-radius: var(--radius); display: block; }
.article-prose figcaption{
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gray-light);
  text-align: center;
}
.article-lede{
  font-family: var(--font-title);
  font-weight: 500;
  font-size: 19px;
  color: var(--gray);
  margin-bottom: 8px;
}

/* Caixa de atenção — usada para pontos normativos/legais que exigem
   checagem da legislação/norma vigente na data de leitura. */
.note-box{
  display: flex;
  gap: 14px;
  padding: 18px 20px;
  border-radius: var(--radius);
  border-left: 3px solid var(--blue);
  background: rgba(43,164,244,0.06);
  margin: 28px 0;
}
.note-box .note-icon{ flex-shrink: 0; color: var(--blue-deep); margin-top: 2px; }
.note-box p{ margin: 0; font-size: 14.5px; color: var(--graphite); }
.note-box strong{ display: block; margin-bottom: 4px; font-family: var(--font-title); }

/* ---------- Meta do artigo (categoria, data, tempo de leitura) ---------- */
.article-meta-row{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin: 18px 0 26px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--gray-light);
}
.article-meta-row .art-tag{
  color: var(--blue-deep);
  background: rgba(43,164,244,0.1);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
}

/* ---------- Caixa de autoria (E-E-A-T) ---------- */
.author-box{
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 22px;
  border-radius: var(--radius);
  background: var(--paper);
  border: 1px solid var(--hairline);
  margin: 40px 0;
}
.author-box .author-avatar{
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--graphite);
  color: var(--white);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 16px;
}
.author-box h4{ font-size: 15px; margin-bottom: 3px; }
.author-box p{ font-size: 13.5px; color: var(--gray); margin: 0; }

/* ---------- Barra lateral do artigo ---------- */
.article-side{ display: flex; flex-direction: column; gap: 24px; position: sticky; top: 96px; }
.side-card{
  padding: 22px;
  border-radius: var(--radius);
  border: 1px solid var(--hairline);
  background: var(--white);
}
.side-card.dark{
  background: var(--graphite);
  color: var(--white);
  border: none;
}
.side-card h4{ font-size: 15px; margin-bottom: 10px; }
.side-card.dark h4{ color: var(--white); }
.side-card p{ font-size: 13.5px; color: var(--gray); margin-bottom: 14px; }
.side-card.dark p{ color: rgba(255,255,255,0.68); }
.side-card .btn{ width: 100%; justify-content: center; }
.toc-list{ display: flex; flex-direction: column; gap: 9px; }
.toc-list a{
  font-size: 13.5px;
  color: var(--gray);
  line-height: 1.4;
}
.toc-list a:hover{ color: var(--blue-deep); }

/* ---------- Relacionados / continue lendo ---------- */
.related-wrap{ margin-top: 64px; padding-top: 48px; border-top: 1px solid var(--hairline); }

@media (max-width: 980px){
  .category-grid{ grid-template-columns: repeat(2, minmax(0,1fr)); }
  .article-grid{ grid-template-columns: repeat(2, minmax(0,1fr)); }
  .article-layout{ grid-template-columns: 1fr; gap: 36px; }
  .article-side{ position: static; flex-direction: row; flex-wrap: wrap; }
  .article-side .side-card{ flex: 1 1 260px; }
}
@media (max-width: 720px){
  .category-grid{ grid-template-columns: 1fr; }
  .article-grid{ grid-template-columns: 1fr; }
  .article-prose{ font-size: 15.5px; }
  .article-prose h2{ font-size: 21px; }
  .article-layout{ gap: 28px; }
  .author-box{ flex-direction: column; }
}