/* Статті блогу (поверх site.css) */
.crumbs { display: flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 600; }
.crumbs a { color: var(--ink); opacity: 0.85; }
.crumbs span { opacity: 0.45; }

/* На широких екранах колонка росте разом із шрифтом, але довжина рядка лишається читабельною */
.article-wrap { max-width: clamp(820px, 62vw, 1240px); padding-bottom: 12px; }
.article {
  background: var(--card);
  border-radius: var(--radius);
  padding: 48px 56px 40px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.07);
  font-size: clamp(17.5px, 0.55vw + 11px, 24px);
  line-height: 1.75;
  color: #34324a;
}
.article .kicker { margin: 0 0 14px; font-size: 13px; font-weight: 800; letter-spacing: 1.4px; text-transform: uppercase; color: var(--green); }
.article h1 { margin: 0 0 14px; font-size: clamp(30px, 3vw, 54px); line-height: 1.16; letter-spacing: -0.8px; color: var(--ink); }
.article .byline { margin: 0 0 32px; padding-bottom: 28px; border-bottom: 1px solid var(--line); font-size: 14.5px; color: var(--muted); }
.article .lead { font-size: 1.15em; line-height: 1.6; color: var(--ink); margin: 0 0 28px; }
.article h2 { margin: 52px 0 14px; font-size: clamp(27px, 1.5vw, 36px); line-height: 1.25; letter-spacing: -0.4px; color: var(--ink); }
.article h3 { margin: 32px 0 8px; font-size: 20px; line-height: 1.3; color: var(--ink); }
.article p { margin: 0 0 20px; }
.article ul, .article ol { margin: 0 0 22px; padding-left: 24px; }
.article li { margin-bottom: 8px; }
.article a { color: var(--green); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.article strong { color: var(--ink); }
.article sup.cite { font-size: 0.72em; line-height: 0; }
.article sup.cite a { text-decoration: none; font-weight: 700; }

.article .katex { font-size: 1.08em; }
.article .katex-display { margin: 24px 0; padding: 6px 0; overflow-x: auto; overflow-y: hidden; }

.article figure { margin: 34px -12px; }
.article figure img { display: block; width: 100%; height: auto; }
.article figcaption { margin: 10px 12px 0; font-size: 0.84em; line-height: 1.55; color: var(--muted); }
.article figcaption strong { color: var(--ink-soft); }

.article .callout {
  margin: 28px 0;
  padding: 20px 24px;
  background: var(--mist);
  border: 1px solid var(--line);
  border-radius: 18px;
  font-size: 0.95em;
  line-height: 1.65;
}
.article .callout p:last-child, .article .callout ul:last-child { margin-bottom: 0; }
.article .callout .title { margin: 0 0 8px; font-weight: 800; color: var(--ink); }

.article table { width: 100%; border-collapse: collapse; margin: 26px 0; font-size: 0.9em; line-height: 1.5; }
.article th, .article td { text-align: left; vertical-align: top; padding: 11px 12px; border-bottom: 1px solid var(--line); }
.article th { font-size: 13px; letter-spacing: 0.6px; text-transform: uppercase; color: var(--muted); }
.article .table-wrap { overflow-x: auto; }

.article .tldr {
  margin: 26px 0 30px;
  padding: 22px 26px;
  background: #5d7680;
  color: #fff;
  border-radius: 20px;
}
.article .tldr p { margin: 0; color: #fff; }
.article .tldr p.tldr-label { margin: 0 0 6px; font-size: 13px; font-weight: 800; letter-spacing: 0.12em; color: #dbe7ea; }

.article .cta {
  margin: 34px 0;
  padding: 26px 28px;
  background: var(--deep);
  color: #eef2ee;
  border-radius: 20px;
}
.article .cta h2 { margin: 0 0 10px; font-size: 22px; color: #fff; }
.article .cta p { color: #dfe6e0; }
.article .cta a.btn { color: #fff; text-decoration: none; margin-top: 4px; }
.article .cta a:not(.btn) { color: #cfe8d8; }

.article ol.refs { padding-left: 26px; font-size: 0.86em; line-height: 1.6; color: #4a485c; }
.article ol.refs li { margin-bottom: 10px; padding-left: 4px; }
.article ol.refs li:target { background: #fff7e0; border-radius: 6px; }

.post-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 44px; padding-top: 28px; border-top: 1px solid var(--line); }
.nav-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  text-decoration: none !important;
  color: var(--ink) !important;
  line-height: 1.35;
}
.nav-item.next { text-align: right; }
.nav-item.empty { border: 0; }
.nav-item:not(.empty):not(.soon):hover { background: var(--mist); }
.nav-label { font-size: 12px; font-weight: 800; letter-spacing: 1px; text-transform: uppercase; color: var(--muted); }
.nav-title { font-size: 16px; font-weight: 700; }
.nav-soon { font-size: 13px; color: var(--muted); }
.nav-item.soon { opacity: 0.7; }

.idx { display: grid; gap: 14px; margin-top: 8px; }
.idx-item {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  text-decoration: none !important;
  color: var(--ink) !important;
}
a.idx-item:hover { background: var(--mist); }
.idx-item.soon { opacity: 0.6; }
.idx-num { flex: none; width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; background: rgba(58, 141, 93, 0.14); color: var(--green); font-weight: 800; font-size: 15px; }
.idx-main { display: grid; gap: 4px; }
.idx-title { font-weight: 800; font-size: 18px; line-height: 1.3; }
.idx-desc { font-size: 15px; line-height: 1.55; color: var(--ink-soft); }
.idx-meta { font-size: 13.5px; color: var(--muted); }

@media (max-width: 720px) {
  .article { padding: 28px 20px 28px; font-size: 16.5px; border-radius: 20px; }
  .article figure { margin-left: -6px; margin-right: -6px; }
  .article h2 { font-size: 23px; margin-top: 40px; }
  .post-nav { grid-template-columns: 1fr; }
  .nav-item.next { text-align: left; }
  .article table { font-size: 14px; }
  .crumbs a:first-child { display: none; }
  .crumbs span { display: none; }
}