/* Blog — listagem (/blog/) e artigos (/blog/<slug>/).
   Estilo editorial "Substack": serif para a superfície de leitura, sans (Inter)
   só nos microelementos de UI. Minimalista, informativo, com respiro generoso.
   Herda os tokens de tema (claro/escuro) de style.css :root.

   Para trocar a serif, mude só --font-serif abaixo. */
:root {
  --font-serif: "Lora", Georgia, "Times New Roman", serif;
  --blog-measure: 680px;     /* largura de leitura confortável */
}

/* ============================ Listagem ============================ */
.blog-index {
  padding: 132px 0 112px;
  background: var(--wa-bg-page);
  min-height: 100vh;
}
.blog-index__container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 32px;
}
.blog-index__back {
  display: inline-block;
  margin-bottom: 40px;
  color: var(--wa-text-muted);
  text-decoration: none;
  font-weight: 600;
  font-size: .92rem;
  transition: color var(--transition);
}
.blog-index__back:hover { color: var(--wa-green); }
.blog-index__title {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 5.5vw, 3.4rem);
  font-weight: 600;
  letter-spacing: -.02em;
  line-height: 1.12;
  color: var(--wa-text);
  margin-bottom: 18px;
}
.blog-index__lead {
  font-family: var(--font-serif);
  max-width: var(--blog-measure);
  color: var(--wa-text-muted);
  font-size: 1.22rem;
  line-height: 1.6;
  margin-bottom: 72px;
}
.blog-index__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
  gap: 56px 40px;
}

.blog-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.blog-card__media {
  aspect-ratio: 1200 / 630;
  background: var(--wa-surface);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 4px;
}
.blog-card__media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.blog-card__tags { display: flex; flex-wrap: wrap; gap: 8px; }
.blog-card__tag {
  font-size: .7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--wa-teal);
}
.blog-card__title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--wa-text);
}
.blog-card__title a { color: inherit; text-decoration: none; }
.blog-card__title a:hover { color: var(--wa-green); }
/* Card inteiro clicável, mas só o título carrega o link (a11y). */
.blog-card__title a::after { content: ""; position: absolute; inset: 0; }
.blog-card__excerpt {
  font-family: var(--font-serif);
  color: var(--wa-text-muted);
  font-size: 1.04rem;
  line-height: 1.65;
}
.blog-card__meta {
  margin-top: 2px;
  color: var(--wa-text-muted);
  font-size: .82rem;
  letter-spacing: .01em;
}
.blog-card__meta-sep { margin: 0 8px; opacity: .55; }

/* ============================ Artigo ============================ */
.post { background: var(--wa-bg-page); padding: 116px 0 96px; }
.post__container { max-width: var(--blog-measure); margin: 0 auto; padding: 0 24px; }

.post__back {
  display: inline-block;
  margin-bottom: 44px;
  color: var(--wa-text-muted);
  text-decoration: none;
  font-weight: 600;
  font-size: .92rem;
  transition: color var(--transition);
}
.post__back:hover { color: var(--wa-green); }

.post__tags { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 22px; }
.post__tag {
  font-size: .72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--wa-teal);
}
.post__title {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 5vw, 3.1rem);
  font-weight: 600;
  letter-spacing: -.02em;
  line-height: 1.15;
  color: var(--wa-text);
  margin-bottom: 24px;
}
.post__lead {
  font-family: var(--font-serif);
  font-size: 1.32rem;
  line-height: 1.55;
  color: var(--wa-text-muted);
  margin-bottom: 36px;
}
.post__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  color: var(--wa-text-muted);
  font-size: .86rem;
  letter-spacing: .02em;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--wa-border);
  margin-bottom: 56px;
}
.post__meta-sep { margin: 0 9px; opacity: .55; }

.post__cover { margin: 0 0 56px; border-radius: var(--radius-sm); overflow: hidden; }
.post__cover img { width: 100%; height: auto; display: block; }

/* ---- Tipografia do corpo (gerada pelo markdown) ---- */
.post__body {
  font-family: var(--font-serif);
  color: var(--wa-text);
  font-size: 1.2rem;
  line-height: 1.8;
}
.post__body > * + * { margin-top: 1.7em; }
.post__body h2 {
  font-family: var(--font-serif);
  font-size: 1.7rem;
  font-weight: 600;
  letter-spacing: -.01em;
  line-height: 1.3;
  color: var(--wa-text);
  margin-top: 2.6em;
  margin-bottom: .1em;
  scroll-margin-top: 96px;
}
.post__body h3 {
  font-family: var(--font-serif);
  font-size: 1.32rem;
  font-weight: 600;
  color: var(--wa-text);
  margin-top: 2em;
  margin-bottom: 0;
}
.post__body p { color: var(--wa-text); }
.post__body a { color: var(--wa-green); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.post__body a:hover { color: var(--wa-teal); }
.post__body strong { color: var(--wa-text); font-weight: 700; }
.post__body em { font-style: italic; }
.post__body ul, .post__body ol { padding-left: 1.3em; }
.post__body li { margin-top: .6em; padding-left: .2em; }
.post__body li::marker { color: var(--wa-green); }
.post__body code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .86em;
  background: var(--wa-surface-elevated);
  border: 1px solid var(--wa-border);
  border-radius: 6px;
  padding: .1em .4em;
}
/* Pull-quote editorial — minimalista, sem caixa pesada */
.post__body blockquote {
  margin-left: 0;
  margin-right: 0;
  padding: 4px 0 4px 28px;
  border-left: 2px solid var(--wa-green);
  font-size: 1.26rem;
  font-style: italic;
  line-height: 1.6;
  color: var(--wa-text);
}
.post__body blockquote p { color: var(--wa-text); margin-top: .6em; }
.post__body blockquote p:first-child { margin-top: 0; }
.post__body hr { border: 0; border-top: 1px solid var(--wa-border); margin: 3em 0; }

/* Tabelas comparativas — texto em sans para densidade de dados, com respiro */
.post__body table {
  font-family: var(--font);
  width: 100%;
  border-collapse: collapse;
  font-size: .95rem;
  line-height: 1.5;
}
.post__body th, .post__body td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--wa-border);
  vertical-align: top;
}
.post__body thead th {
  color: var(--wa-text);
  font-weight: 700;
  border-bottom: 2px solid var(--wa-border);
}
.post__body tbody tr:last-child td { border-bottom: 0; }
.post__body td:first-child { color: var(--wa-text); font-weight: 600; }

/* ---- Figuras e diagramas ---- */
.post__figure {
  margin: 2.4em 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--wa-border);
  background: var(--wa-surface);
}
.post__figure img {
  display: block;
  width: 100%;
  height: auto;
}
.post__figure figcaption {
  padding: 12px 16px;
  font-family: var(--font);
  font-size: .82rem;
  line-height: 1.45;
  color: var(--wa-text-muted);
  text-align: center;
  border-top: 1px solid var(--wa-border);
}

.post__body .mermaid-wrapper {
  position: relative;
  margin: 2.4em 0;
  width: 100%;
  max-width: 100%;
}
.post__body .mermaid-wrapper__caption {
  margin-top: 10px;
  padding: 0 4px;
  font-family: var(--font);
  font-size: .82rem;
  line-height: 1.45;
  color: var(--wa-text-muted);
  text-align: center;
}
.post__body .mermaid-wrapper .mermaid {
  margin: 0;
  text-align: center;
  overflow-x: auto;
  padding: 16px;
  border: 1px solid var(--wa-border);
  border-radius: var(--radius-sm);
  background: var(--wa-surface);
}
.post__body .mermaid-wrapper .mermaid svg {
  width: 100%;
  max-width: 100%;
  height: auto;
}
.post__body .mermaid-wrapper .mermaid svg .nodeLabel {
  line-height: 1.45;
  white-space: normal;
  word-break: break-word;
  font-size: 13px !important;
  font-weight: 500 !important;
}

/* ---- CTA do fim do artigo ---- */
.post__cta {
  margin-top: 80px;
  padding-top: 48px;
  border-top: 1px solid var(--wa-border);
  text-align: center;
}
.post__cta-title {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--wa-text);
  margin-bottom: 14px;
  letter-spacing: -.01em;
}
.post__cta-text {
  font-family: var(--font-serif);
  color: var(--wa-text-muted);
  font-size: 1.12rem;
  line-height: 1.65;
  max-width: 540px;
  margin: 0 auto 28px;
}
.post__cta-actions { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.post__cta-btn { text-decoration: none; }
.post__cta-disclaimer { margin-top: 28px; font-size: .82rem; color: var(--wa-text-muted); opacity: .8; }

/* ============================ Responsivo ============================ */
@media (max-width: 600px) {
  .blog-index { padding: 104px 0 72px; }
  .blog-index__grid { gap: 44px 32px; }
  .blog-index__container, .post__container { padding-left: 22px; padding-right: 22px; }
  .post { padding-top: 96px; }
  .post__body { font-size: 1.12rem; }
  .post__body table { display: block; overflow-x: auto; white-space: nowrap; }
}