/* ==========================================================================
   B.3 - Blog publico (Journal): listagem, arquivos e post editorial.
   Usa os tokens do site (OKLCH, tipografia, espacamento).
   ========================================================================== */

.blog-hero {
  /* A topbar fixa tem ~160px (logo grande) e fundo transparente; o conteúdo
     precisa começar abaixo dela em qualquer largura. */
  padding: clamp(140px, 15vw, 196px) var(--page-x) clamp(28px, 4vw, 48px);
  display: grid;
  gap: 1rem;
  max-width: 60rem;
}
.blog-eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}
.blog-eyebrow a { color: inherit; border-bottom: 1px solid currentColor; }
.blog-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 250;
  font-size: var(--text-hero);
  line-height: 1.02;
}
.blog-lead {
  margin: 0;
  max-width: 44rem;
  color: var(--muted);
  font-size: var(--text-body);
  line-height: 1.7;
}

/* Filtro por categoria */
.blog-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0 var(--page-x);
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}
.blog-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.85rem;
  border: var(--line);
  color: var(--fg);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: var(--text-caption);
  letter-spacing: 0.05em;
}
.blog-chip span { color: var(--muted); font-size: 0.72em; }
.blog-chip:hover { border-color: var(--fg); }
.blog-chip.is-active { background: var(--accent); color: var(--surface); border-color: var(--accent); }

/* Grade de cartoes */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 20rem), 1fr));
  gap: clamp(1.5rem, 3vw, 2.5rem);
  padding: 0 var(--page-x) clamp(3rem, 6vw, 5rem);
}

.post-card { display: flex; flex-direction: column; gap: 1rem; }
.post-card-media {
  display: block;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--surface);
  border: var(--line);
}
.post-card-media img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.6s ease; }
.post-card:hover .post-card-media img { transform: scale(1.03); }
.post-card-placeholder { display: block; width: 100%; height: 100%; background: linear-gradient(135deg, var(--surface), var(--border)); }
.post-card-body { display: grid; gap: 0.6rem; }
.post-card-title { margin: 0; font-family: var(--font-display); font-weight: 300; font-size: clamp(1.3rem, 2.2vw, 1.7rem); line-height: 1.15; }
.post-card-title a { color: var(--fg); text-decoration: none; }
.post-card-title a:hover { color: var(--muted); }
.post-card-excerpt { margin: 0; color: var(--muted); font-size: var(--text-body); line-height: 1.6; }

/* Metadados */
.post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.post-meta-category { color: var(--accent); text-decoration: none; border-bottom: 1px solid currentColor; }
.post-meta-reading::before { content: "· "; }

/* Paginacao */
.blog-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0 var(--page-x) clamp(4rem, 8vw, 7rem);
  max-width: 60rem;
}
.blog-page-link { color: var(--fg); text-decoration: none; font-family: var(--font-mono); font-size: var(--text-caption); }
.blog-page-link:hover { color: var(--muted); }
.blog-page-link.is-disabled { color: var(--border); pointer-events: none; }
.blog-page-status { font-family: var(--font-mono); font-size: var(--text-caption); color: var(--muted); }

.blog-empty {
  padding: 0 var(--page-x) clamp(5rem, 10vw, 8rem);
  max-width: 40rem;
  color: var(--muted);
  font-size: var(--text-body);
}

/* ---- Post editorial ---- */
.post-article {
  /* Precisa começar abaixo da topbar fixa (~160px) em qualquer largura. */
  padding: clamp(140px, 14vw, 188px) var(--page-x) 0;
  max-width: 46rem;
  margin: 0 auto;
}
.post-header { display: grid; gap: 1.25rem; margin-bottom: clamp(2rem, 4vw, 3rem); }
.post-headline {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 250;
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1.03;
}
.post-standfirst { margin: 0; font-size: clamp(1.1rem, 1.6vw, 1.35rem); line-height: 1.6; color: var(--muted); }

.post-cover {
  margin: 0 0 clamp(2rem, 4vw, 3rem);
  width: 100vw;
  max-width: 100vw;
  margin-left: calc(50% - 50vw);
}
.post-cover img { width: 100%; max-height: 70vh; object-fit: cover; display: block; }

/* Corpo: HTML sanitizado gerado pela B.2 */
.post-body { font-size: var(--text-body); line-height: 1.8; color: var(--fg); }
.post-body > * + * { margin-top: 1.4rem; }
.post-body h2 { font-family: var(--font-display); font-weight: 300; font-size: clamp(1.6rem, 3vw, 2.2rem); line-height: 1.15; margin-top: 2.5rem; }
.post-body h3 { font-family: var(--font-display); font-weight: 300; font-size: clamp(1.3rem, 2.4vw, 1.7rem); margin-top: 2rem; }
.post-body h4 { font-weight: 500; font-size: 1.15rem; margin-top: 1.6rem; }
.post-body a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.post-body ul, .post-body ol { padding-left: 1.5rem; }
.post-body li + li { margin-top: 0.4rem; }
.post-body blockquote {
  margin: 2rem 0;
  padding-left: 1.25rem;
  border-left: 2px solid var(--muted);
  color: var(--muted);
  font-style: italic;
}
.post-body pre {
  padding: 1.25rem;
  background: var(--surface);
  border: var(--line);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}
.post-body code { font-family: var(--font-mono); font-size: 0.9em; }
.post-body hr { border: 0; border-top: var(--line); margin: 2.5rem 0; }

.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: clamp(2.5rem, 5vw, 4rem);
  padding-top: 1.5rem;
  border-top: var(--line);
}

.post-related {
  max-width: 72rem;
  margin: clamp(3rem, 6vw, 5rem) auto 0;
  padding: clamp(3rem, 6vw, 5rem) var(--page-x) 0;
  border-top: var(--line);
}
.post-related-title { font-family: var(--font-display); font-weight: 300; font-size: clamp(1.5rem, 3vw, 2rem); margin: 0 0 2rem; }

.post-back { max-width: 46rem; margin: 0 auto; padding: clamp(3rem, 6vw, 5rem) var(--page-x) clamp(4rem, 8vw, 7rem); }
.post-back a, .post-back-link { color: var(--muted); text-decoration: none; font-family: var(--font-mono); font-size: var(--text-caption); }
.post-back a:hover { color: var(--fg); }

@media (max-width: 640px) {
  .post-cover { margin-left: calc(50% - 50vw); }
  .blog-pagination { flex-wrap: wrap; }
}

/* Busca (B.6) */
.blog-search { display: flex; gap: 0.5rem; max-width: 32rem; margin-top: 0.5rem; }
.blog-search input {
  flex: 1;
  min-height: 3rem;
  padding: 0 0.9rem;
  border: var(--line);
  background: var(--surface);
  color: var(--fg);
  font: inherit;
}
.blog-search input:focus-visible { outline: 2px solid var(--muted); outline-offset: 2px; }
.blog-search button {
  min-height: 3rem;
  padding: 0 1.25rem;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--surface);
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
}
.blog-search-count { padding: 0 var(--page-x); margin: 0 0 1.5rem; color: var(--muted); font-size: var(--text-caption); }

/* ── Topbar específica do blog (legibilidade em fundo claro) ──
   O estado inicial global é transparente com itens claros — invisível
   sobre o fundo linho do Journal. Antes do scroll, aplica uma faixa
   escura para manter logo, menu e CTA legíveis. Os estados is-scrolled
   e menu-open seguem o comportamento global. */
body:not(.menu-open) .topbar:not(.is-scrolled) {
  background: color-mix(in oklch, var(--ink-deep), transparent 4%);
  border-bottom: 1px solid color-mix(in oklch, var(--surface), transparent 88%);
  backdrop-filter: blur(8px);
}

/* Breadcrumbs (B.7) */
.breadcrumbs { margin: 0 0 0.5rem; }
.post-article .breadcrumbs { margin-bottom: 1.5rem; }
.breadcrumbs ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}
.breadcrumbs li { display: inline-flex; align-items: center; gap: 0.4rem; }
.breadcrumbs li + li::before { content: "›"; color: var(--border); }
.breadcrumbs a { color: var(--muted); text-decoration: none; }
.breadcrumbs a:hover { color: var(--fg); }
.breadcrumbs [aria-current="page"] { color: var(--fg); overflow: hidden; text-overflow: ellipsis; max-width: 22rem; white-space: nowrap; }

/* Alternador de idioma (B.8) */
.post-topline { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.post-article .post-topline { margin-bottom: 1.5rem; }
.lang-toggle { display: inline-flex; gap: 0.25rem; font-family: var(--font-mono); font-size: var(--text-label); }
.lang-opt {
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--border);
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.08em;
}
.lang-opt:hover { border-color: var(--fg); color: var(--fg); }
.lang-opt.is-active { background: var(--accent); color: var(--surface); border-color: var(--accent); }