/* =========================================================
   ASSYST ENGENHARIA · Blog styles v2
   Complementa styles.css principal
   ========================================================= */

/* =========================================================
   BLOG HERO
   ========================================================= */
.blog-hero {
  padding: clamp(70px, 10vw, 130px) 0 clamp(60px, 8vw, 100px);
  background: var(--graphite);
  color: var(--bg);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid rgba(251, 250, 248, 0.1);
}
.blog-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(251, 250, 248, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(251, 250, 248, 0.04) 1px, transparent 1px);
  background-size: 100px 100px;
  mask-image: radial-gradient(ellipse at 80% 30%, black 10%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 80% 30%, black 10%, transparent 70%);
  pointer-events: none;
}
.blog-hero__inner { position: relative; }

.blog-hero .breadcrumb {
  margin-bottom: 48px;
}
.blog-hero__kicker {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 32px;
}
.blog-hero__kicker .dot {
  width: 8px; height: 8px;
  background: var(--orange);
}
.blog-hero__kicker span {
  font-family: var(--ff-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-on-dark-2);
}
.blog-hero__title {
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: clamp(2.4rem, 7vw, 5.6rem);
  line-height: 0.95;
  letter-spacing: -0.035em;
  color: var(--bg);
  margin: 0 0 24px;
  max-width: 900px;
}
.blog-hero__title em {
  font-family: var(--ff-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--orange);
}
.blog-hero__lead {
  max-width: 640px;
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  line-height: 1.55;
  color: var(--ink-on-dark-2);
  margin: 0;
}

/* =========================================================
   BREADCRUMB
   ========================================================= */
.breadcrumb {
  font-family: var(--ff-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  color: var(--ink-on-dark-3);
}
.breadcrumb a {
  color: var(--ink-on-dark-2);
  transition: color .2s var(--ease);
}
.breadcrumb a:hover { color: var(--orange); }
.breadcrumb__sep { opacity: 0.5; }
.breadcrumb__current { color: var(--orange); }

/* Variação clara (pra pós) */
.breadcrumb--light a { color: var(--ink-2); }
.breadcrumb--light { color: var(--ink-3); }
.breadcrumb--light .breadcrumb__current { color: var(--orange); }

/* =========================================================
   FILTROS DE CATEGORIA
   ========================================================= */
.blog-filters {
  padding: 28px 0;
  border-bottom: 1px solid var(--graphite-line);
  background: var(--bg);
}
.blog-filters__inner {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.blog-filters__label {
  font-family: var(--ff-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-3);
}
.blog-filters__list {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  list-style: none;
  padding: 0;
  margin: 0;
}
.blog-filters__list a {
  display: inline-block;
  padding: 9px 18px;
  font-family: var(--ff-mono);
  font-size: 0.74rem;
  font-weight: 500;
  color: var(--ink-2);
  border: 1px solid transparent;
  transition: all .25s var(--ease);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.blog-filters__list a:hover {
  color: var(--ink);
  border-color: var(--graphite-line-2);
}
.blog-filters__list a.is-active {
  background: var(--graphite);
  color: var(--bg);
  border-color: var(--graphite);
}

/* =========================================================
   GRID DE POSTS
   ========================================================= */
.blog-grid-section {
  padding: clamp(60px, 8vw, 100px) 0;
  background: var(--bg);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 40px 24px;
}

/* Post em destaque (primeiro) */
.blog-grid .post-card.post-card--featured {
  grid-column: span 12;
  display: grid;
  grid-template-columns: 6fr 5fr;
  gap: 48px;
  padding-bottom: 50px;
  border-bottom: 1px solid var(--graphite-line);
  margin-bottom: 8px;
}
@media (max-width: 860px) {
  .blog-grid .post-card--featured {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

/* Demais posts */
.blog-grid .post-card { grid-column: span 4; }
@media (max-width: 900px) {
  .blog-grid .post-card { grid-column: span 6; }
}
@media (max-width: 620px) {
  .blog-grid .post-card { grid-column: span 12; }
}

.post-card {
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: transform .35s var(--ease);
}
.post-card:hover { transform: translateY(-5px); }

.post-card__image-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
}
.post-card--featured .post-card__image-wrap { aspect-ratio: 16 / 10; }

.post-card__image {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-color: var(--bg-3);
  transition: transform .6s var(--ease);
}
.post-card:hover .post-card__image {
  transform: scale(1.03);
}

.post-card__meta-top {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--ff-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-3);
}
.post-card__category {
  color: var(--orange);
  font-weight: 600;
}
.post-card__dot {
  width: 3px; height: 3px;
  background: var(--ink-3);
  border-radius: 50%;
  opacity: 0.6;
}

.post-card__title {
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: 1.3rem;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0;
  transition: color .25s var(--ease);
}
.post-card:hover .post-card__title { color: var(--orange); }

.post-card--featured .post-card__title {
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  line-height: 1.05;
  letter-spacing: -0.025em;
}

.post-card__excerpt {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--ink-2);
  margin: 0;
}
.post-card--featured .post-card__excerpt {
  font-size: 1.05rem;
  max-width: 560px;
}

.post-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--graphite-line);
  margin-top: auto;
}
.post-card__author {
  font-family: var(--ff-mono);
  font-size: 0.7rem;
  color: var(--ink-2);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.post-card__read-more {
  font-family: var(--ff-mono);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all .25s var(--ease);
}
.post-card:hover .post-card__read-more { color: var(--orange); }
.post-card__read-more .arrow {
  font-family: var(--ff-mono);
  transition: transform .25s var(--ease);
}
.post-card:hover .post-card__read-more .arrow { transform: translateX(4px); }

.post-card--featured .post-card__content {
  display: flex;
  flex-direction: column;
  gap: 24px;
  justify-content: center;
}

/* =========================================================
   POST ARTICLE (página individual)
   ========================================================= */
.post-article {
  padding: clamp(40px, 6vw, 70px) 0 clamp(70px, 10vw, 130px);
  background: var(--bg);
}

.post-article__layout {
  display: grid;
  grid-template-columns: 220px 1fr 240px;
  gap: 60px;
  align-items: start;
}
@media (max-width: 1100px) {
  .post-article__layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .post-article__toc { display: none; }
}

/* TOC lateral */
.post-article__toc {
  position: sticky;
  top: calc(var(--header-h) + 28px);
  font-family: var(--ff-mono);
}
.post-article__toc-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-3);
  margin-bottom: 16px;
  display: block;
  font-weight: 600;
}
.post-article__toc ul {
  list-style: none;
  padding: 0;
  margin: 0;
  border-left: 1px solid var(--graphite-line);
}
.post-article__toc li {
  border-left: 2px solid transparent;
  margin-left: -1px;
  transition: border-color .25s var(--ease);
}
.post-article__toc li:hover,
.post-article__toc li.is-active {
  border-left-color: var(--orange);
}
.post-article__toc a {
  display: block;
  padding: 7px 14px;
  font-size: 0.78rem;
  color: var(--ink-2);
  line-height: 1.4;
  transition: color .25s var(--ease);
}
.post-article__toc a:hover,
.post-article__toc li.is-active a {
  color: var(--orange);
}

/* Main content */
.post-article__main {
  max-width: 720px;
  margin: 0 auto;
  width: 100%;
}

.post-article__header {
  margin-bottom: 40px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--graphite-line);
}
.post-article__category {
  font-family: var(--ff-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--orange);
  font-weight: 600;
  margin-bottom: 24px;
  display: inline-block;
}
.post-article__title {
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: clamp(2rem, 4.8vw, 3.6rem);
  line-height: 1.02;
  letter-spacing: -0.035em;
  color: var(--ink);
  margin: 0 0 24px;
}
.post-article__lead {
  font-family: var(--ff-serif);
  font-style: italic;
  font-weight: 400;
  font-size: 1.35rem;
  line-height: 1.5;
  color: var(--ink-2);
  margin: 0 0 32px;
}
.post-article__meta {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  font-family: var(--ff-mono);
  font-size: 0.74rem;
  color: var(--ink-3);
  letter-spacing: 0.04em;
}
.post-article__meta span strong {
  color: var(--ink-2);
  font-weight: 600;
  margin-right: 6px;
}

/* Imagem destaque */
.post-article__hero-image {
  width: 100%;
  max-width: 70%;
  aspect-ratio: 21 / 9;
  background-color: var(--bg-3);
  background-size: cover;
  background-position: center;
  margin: 0 auto 40px;
  overflow: hidden;
  display: block;
}
.post-article__hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

/* Figuras intermediárias dentro do corpo do post */
.post-article__figure {
  margin: 36px auto;
  display: block;
  max-width: 392px;
}
.post-article__figure img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: center;
  display: block;
  background-color: var(--bg-3);
}
.post-article__figure figcaption {
  font-family: var(--ff-mono);
  font-size: 0.78rem;
  color: var(--ink-3);
  margin-top: 12px;
  letter-spacing: 0.02em;
  line-height: 1.5;
}

/* Conteúdo do post */
.post-content {
  font-family: var(--ff-body);
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--ink);
}
.post-content > * + * { margin-top: 1.4em; }
.post-content h2 {
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: 1.9rem;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin-top: 2.4em;
  margin-bottom: 0.6em;
  scroll-margin-top: calc(var(--header-h) + 20px);
}
.post-content h3 {
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: 1.35rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-top: 2em;
  margin-bottom: 0.5em;
}
.post-content p { margin: 0; color: var(--ink); }
.post-content p + p { margin-top: 1.4em; }

.post-content a {
  color: var(--orange);
  border-bottom: 1px solid var(--orange-line);
  transition: border-color .2s var(--ease);
}
.post-content a:hover { border-bottom-color: var(--orange); }

.post-content strong { font-weight: 600; color: var(--ink); }
.post-content em { font-style: italic; }

.post-content ul, .post-content ol {
  padding-left: 24px;
  margin: 1.4em 0;
}
.post-content li {
  margin-bottom: 0.6em;
  line-height: 1.7;
}

.post-content blockquote {
  margin: 2em 0;
  padding: 28px 36px;
  background: var(--bg-2);
  border-left: 4px solid var(--orange);
  font-family: var(--ff-serif);
  font-style: italic;
  font-size: 1.2rem;
  line-height: 1.5;
  color: var(--ink);
}
.post-content blockquote p { margin: 0; }

/* Call-out técnico */
.post-content .callout {
  margin: 2em 0;
  padding: 28px 32px 28px 56px;
  background: var(--bg-2);
  border: 1px solid var(--graphite-line);
  position: relative;
}
.post-content .callout::before {
  content: '§';
  position: absolute;
  top: 24px; left: 24px;
  font-family: var(--ff-serif);
  font-size: 1.6rem;
  color: var(--orange);
  line-height: 1;
}
.post-content .callout__label {
  display: block;
  font-family: var(--ff-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--orange);
  font-weight: 600;
  margin-bottom: 12px;
}
.post-content .callout__content {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ink-2);
}

.post-content figure { margin: 2em 0; }
.post-content figure img { width: 100%; }
.post-content figcaption {
  margin-top: 12px;
  font-family: var(--ff-mono);
  font-size: 0.75rem;
  color: var(--ink-3);
  text-align: center;
  letter-spacing: 0.04em;
}

/* Sidebar direita */
.post-article__sidebar {
  position: sticky;
  top: calc(var(--header-h) + 28px);
  padding: 28px;
  background: var(--graphite);
  color: var(--bg);
  border-top: 3px solid var(--orange);
}
.post-article__sidebar-label {
  font-family: var(--ff-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--orange);
  margin-bottom: 12px;
  display: block;
}
.post-article__sidebar h4 {
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: 1.15rem;
  line-height: 1.2;
  margin: 0 0 12px;
  color: var(--bg);
  letter-spacing: -0.015em;
}
.post-article__sidebar p {
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--ink-on-dark-2);
  margin: 0 0 20px;
}
.post-article__sidebar .btn {
  width: 100%;
  justify-content: center;
  padding: 12px 16px;
  font-size: 0.72rem;
}

/* Box da autora */
.post-article__author-box {
  margin-top: 80px;
  padding: 40px 0;
  border-top: 1px solid var(--graphite-line);
  border-bottom: 1px solid var(--graphite-line);
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 28px;
  align-items: start;
}
@media (max-width: 600px) {
  .post-article__author-box {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}
.author-box__avatar {
  width: 88px;
  height: 88px;
  background: var(--orange);
  color: var(--bg);
  display: grid;
  place-items: center;
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: 2.2rem;
  letter-spacing: -0.02em;
  overflow: hidden;
  flex-shrink: 0;
}
.author-box__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}
.author-box__label {
  font-family: var(--ff-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-3);
  margin-bottom: 8px;
  display: block;
  font-weight: 600;
}
.author-box__name {
  font-family: var(--ff-display);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 10px;
  letter-spacing: -0.02em;
}
.author-box__bio {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--ink-2);
  margin: 0;
}

/* Posts relacionados */
.related-posts {
  padding: clamp(60px, 8vw, 100px) 0;
  background: var(--bg-2);
  border-top: 1px solid var(--graphite-line);
}
.related-posts__header {
  margin-bottom: 48px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--graphite-line);
  display: flex;
  align-items: baseline;
  gap: 16px;
}
.related-posts__index {
  font-family: var(--ff-mono);
  font-size: 0.78rem;
  color: var(--orange);
  font-weight: 600;
  letter-spacing: 0.1em;
}
.related-posts__title {
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  letter-spacing: -0.025em;
  color: var(--ink);
  margin: 0;
}
.related-posts__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
@media (max-width: 820px) {
  .related-posts__grid { grid-template-columns: 1fr; }
}

/* ===== FAQ do post (FAQPage / AEO) ===== */
.post-faq {
  margin: 36px 0 8px;
  border-top: 1px solid var(--graphite-line);
}
.post-faq__item {
  border-bottom: 1px solid var(--graphite-line);
}
.post-faq__item summary {
  list-style: none;
  cursor: pointer;
  position: relative;
  padding: 20px 42px 20px 0;
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: 1.06rem;
  line-height: 1.4;
  color: var(--ink);
  transition: color .2s var(--ease);
}
.post-faq__item summary::-webkit-details-marker { display: none; }
.post-faq__item summary::after {
  content: '+';
  position: absolute;
  right: 6px;
  top: 18px;
  font-size: 1.5rem;
  font-weight: 400;
  line-height: 1;
  color: var(--orange);
}
.post-faq__item[open] summary::after { content: '\2212'; }
.post-faq__item summary:hover { color: var(--orange); }
.post-faq__answer { padding: 0 0 22px; }
.post-faq__answer p { margin: 0; color: var(--ink-2); }