/* blog.css — /blog/, its categories and every post.

   ⚠️ No colour is written here: every one is a token from tokens.css, so the
   blog follows light and dark with the rest of the site and a palette change
   reaches it with no edit. Sizes follow the old-site scale in site.css (body
   17px); the reading column is narrower than the page on purpose — about 70
   Persian characters a line, where long-form text stops being tiring. */

/* ---- Listing ------------------------------------------------------------- */
.blog-intro { grid-template-columns: 1fr; min-height: 0; }
.blog-cats { display: flex; flex-wrap: wrap; gap: 10px; margin: 6px 0 26px; }
.blog-cats a {
  padding: 7px 16px; border-radius: 999px; font-size: .9375rem;
  border: 1px solid var(--line-2); background: var(--surface); color: var(--ink-2);
}
.blog-cats a:hover { border-color: var(--accent-line); color: var(--accent-dark); }
.blog-cats a[aria-current="page"] { background: var(--accent-soft); border-color: var(--accent-line); color: var(--accent-dark); font-weight: 600; }

.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.blog-card { display: flex; }
.blog-card-link {
  display: flex; flex-direction: column; width: 100%; overflow: hidden;
  border: 1px solid var(--line); border-radius: 18px; background: var(--surface);
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.blog-card-link:hover { transform: translateY(-4px); box-shadow: 0 12px 30px var(--shadow); border-color: var(--accent-line); }
.blog-card-img { display: block; width: 100%; height: auto; aspect-ratio: 1200 / 630; object-fit: cover; background: var(--surface-2); }
.blog-card-img-empty { background: linear-gradient(120deg, var(--mint-soft), var(--accent-soft)); }
.blog-card-body { display: flex; flex-direction: column; gap: 8px; padding: 18px 20px 20px; flex: 1; }
.blog-card-cat { font-size: .8125rem; font-weight: 600; color: var(--accent-dark); }
.blog-card-title { font-size: 1.125rem; font-weight: 700; line-height: 1.6; margin: 0; color: var(--ink); }
.blog-card-excerpt { font-size: .9375rem; line-height: 1.9; color: var(--muted); flex: 1; }
.blog-card-meta { font-size: .8125rem; color: var(--muted-2); }
.blog-empty { color: var(--muted); padding: 30px 0; }

.blog-pages { display: flex; justify-content: center; align-items: center; gap: 22px; margin: 34px 0 0; font-size: .9375rem; color: var(--muted); }
.blog-pages a { padding: 8px 16px; border: 1px solid var(--line-2); border-radius: 12px; background: var(--surface); color: var(--ink); }

/* ---- One post ------------------------------------------------------------ */
.blog-post { max-width: 760px; margin: 0 auto; }
.blog-preview {
  max-width: 760px; margin: 18px auto 0; padding: 12px 18px; border-radius: 14px; font-size: .9375rem;
  background: var(--warn-soft); border: 1px solid var(--warn-line); color: var(--warn-ink);
}
.blog-post-head { padding-top: 34px; }
.blog-crumb { font-size: .9375rem; color: var(--muted); margin-bottom: 10px; }
.blog-crumb a { color: var(--accent-dark); }
.blog-post-head h1 { font-size: clamp(1.9rem, 4.6vw, 2.75rem); line-height: 1.35; letter-spacing: -.02em; margin: 0 0 14px; }
.blog-lead { font-size: var(--fs-lead, 1.1875rem); line-height: 1.8; color: var(--muted); margin: 0 0 12px; text-align: justify; text-align-last: start; }
.blog-meta { font-size: .875rem; color: var(--muted-2); margin: 0 0 26px; }
.blog-cover { margin: 0 0 30px; }
.blog-cover img { display: block; width: 100%; height: auto; border-radius: 18px; border: 1px solid var(--line); }

.blog-toc { margin: 0 0 30px; padding: 16px 22px; border-radius: 16px; background: var(--surface); border: 1px solid var(--line); }
.blog-toc summary { cursor: pointer; font-weight: 700; color: var(--ink); }
.blog-toc ol { margin: 12px 0 0; padding-inline-start: 22px; line-height: 2.1; }
.blog-toc .toc-l3 { margin-inline-start: 18px; list-style: circle; font-size: .9375rem; }
.blog-toc a { color: var(--ink-2); }
.blog-toc a:hover { color: var(--accent-dark); }

/* The body: text written in the admin, tags written by blog/markup.py. */
.blog-body { font-size: 1.0625rem; line-height: 2.05; color: var(--ink-2); }
.blog-body > * { margin: 0 0 20px; }
.blog-body h2 { font-size: 1.5rem; line-height: 1.5; color: var(--ink); margin: 40px 0 14px; scroll-margin-top: 90px; }
.blog-body h3 { font-size: 1.1875rem; line-height: 1.6; color: var(--ink); margin: 30px 0 10px; scroll-margin-top: 90px; }
.blog-body p { text-align: justify; text-align-last: start; }
.blog-body a { color: var(--accent-dark); text-decoration: underline; text-underline-offset: 4px; }
.blog-body strong { color: var(--ink); }
.blog-body ul, .blog-body ol { padding-inline-start: 26px; }
.blog-body li { margin-bottom: 6px; }
.blog-body li > ul, .blog-body li > ol { margin-top: 6px; }
.blog-body code {
  font-family: Consolas, "SFMono-Regular", Menlo, monospace; font-size: .9em; unicode-bidi: isolate;
  padding: 2px 7px; border-radius: 7px; background: var(--surface-2); border: 1px solid var(--line); color: var(--ink);
}
.blog-body pre {
  direction: ltr; text-align: left; overflow-x: auto; padding: 16px 18px; border-radius: 14px;
  background: var(--surface-2); border: 1px solid var(--line); line-height: 1.7;
}
.blog-body pre code { padding: 0; border: 0; background: none; font-size: .9375rem; }
.blog-body blockquote {
  padding: 4px 20px; border-inline-start: 4px solid var(--line-2); color: var(--muted);
}
.blog-body blockquote > :last-child, .callout > :last-child { margin-bottom: 0; }
.blog-body hr { border: 0; border-top: 1px solid var(--line); margin: 34px 0; }
.blog-body figure { margin: 26px 0; }
.blog-body figure img, .blog-body figure video {
  display: block; max-width: 100%; height: auto; margin: 0 auto; border-radius: 14px; border: 1px solid var(--line);
}
.blog-body figcaption { text-align: center; font-size: .875rem; color: var(--muted); margin-top: 8px; }
.blog-body .table-wrap { overflow-x: auto; }
.blog-body table { width: 100%; border-collapse: collapse; font-size: .9375rem; }
.blog-body th, .blog-body td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: start; }
.blog-body th { color: var(--ink); background: var(--surface-2); }
.blog-embed { position: relative; aspect-ratio: 16 / 9; border-radius: 14px; overflow: hidden; border: 1px solid var(--line); }
.blog-embed iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.blog-missing { padding: 12px 16px; border-radius: 12px; background: var(--bad-soft); border: 1px solid var(--bad-line); color: var(--bad-ink); }

.callout { padding: 14px 20px; border-radius: 14px; border: 1px solid; }
.callout .callout-title { font-weight: 700; margin: 0 0 4px; }
.callout-tip       { background: var(--ok-soft);   border-color: var(--ok-line);   color: var(--ok-ink); }
.callout-warn      { background: var(--warn-soft); border-color: var(--warn-line); color: var(--warn-ink); }
.callout-important { background: var(--info-soft); border-color: var(--info-line); color: var(--info-ink); }
.callout p { text-align: start; }

.blog-cta {
  margin: 40px 0 0; padding: 22px 24px; border-radius: 18px;
  background: linear-gradient(120deg, var(--mint-soft), var(--accent-soft)); border: 1px solid var(--mint-line);
}
.blog-cta p { margin: 0 0 12px; line-height: 2; }
.blog-cta-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 0 !important; }
.blog-cta .button { padding: 11px 20px; font-size: .9375rem; }
.blog-related { margin-top: 60px; }
.blog-related > h2 { font-size: 1.5rem; margin: 0 0 20px; }

@media (max-width: 1000px) { .blog-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) {
  .blog-grid { grid-template-columns: 1fr; }
  .blog-body { font-size: 1rem; line-height: 2; }
  .blog-body p, .blog-lead { text-align: start; }   /* narrow columns + justify = rivers */
}