/* Блог: обложки, «Коротко», содержание, кнопки заявки, форма, похожие статьи, каталог статей */

.article-page main { padding-top: 120px; }
.article--wide { max-width: 820px; }
.article .article__crumbs { margin-bottom: 14px; }
.article h1 { line-height: 1.15; }

/* обложка */
.article__cover { margin: 8px 0 28px; border-radius: 22px; overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow-lg); background: var(--bg-2); }
.article__cover img { display: block; width: 100%; height: auto; }
.article__fig { margin: 32px 0; border-radius: 18px; overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow); background: var(--bg-2); }
.article__fig img { display: block; width: 100%; height: auto; margin: 0; border-radius: 0; }
.article__fig figcaption { padding: 10px 16px; font-size: 13px; color: var(--text-3); background: var(--surface-2); }

/* «Коротко» */
.tldr { margin: 26px 0; padding: 22px 26px; border-radius: 18px; border: 1px solid rgba(59, 91, 255, 0.25); background: linear-gradient(135deg, rgba(59, 91, 255, 0.07), rgba(0, 180, 230, 0.07)); }
.tldr b.tldr__t { display: block; font-family: var(--font-display); font-size: 15px; margin-bottom: 10px; }
.tldr ul { margin: 0; padding-left: 20px; display: flex; flex-direction: column; gap: 8px; }
.tldr li { font-size: 16px; color: var(--text); line-height: 1.55; }

/* содержание */
.toc { margin: 22px 0 30px; border-radius: 16px; border: 1px solid var(--border); background: var(--surface); }
.toc summary { cursor: pointer; padding: 16px 20px; font-family: var(--font-display); font-weight: 600; font-size: 15px; list-style: none; }
.toc summary::-webkit-details-marker { display: none; }
.toc summary::after { content: "▾"; float: right; color: var(--accent); }
.toc[open] summary::after { content: "▴"; }
.toc ol { margin: 0; padding: 0 20px 18px 40px; display: flex; flex-direction: column; gap: 6px; list-style: decimal; }
.toc a { color: var(--text-2); font-size: 15px; }
.toc a:hover { color: var(--accent); }

/* кнопки заявки */
.cta-row { display: flex; flex-wrap: wrap; gap: 10px; }
.cta-row .btn { flex: 0 0 auto; }
.cta-bar {
  display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  margin: 22px 0 8px; padding: 16px 20px; border-radius: 16px; border: 1px solid var(--border); background: var(--surface-2); box-shadow: var(--shadow);
}
.cta-bar p { margin: 0 !important; font-size: 15px !important; color: var(--text) !important; font-weight: 500; }
.cta-card {
  margin: 36px 0; padding: 28px 30px; border-radius: 22px; border: 1px solid var(--border);
  background: radial-gradient(520px 220px at 0% 100%, rgba(59, 91, 255, 0.14), transparent 60%), var(--surface-2); box-shadow: var(--shadow-lg);
}
.cta-card h3 { margin: 0 0 8px !important; font-size: 21px !important; }
.cta-card p { color: var(--text-2); margin: 0 0 18px !important; font-size: 16px !important; }

/* итоговый блок с формой */
.lead-box { margin-top: 48px; padding: 32px; border-radius: 26px; border: 1px solid var(--border); background: radial-gradient(640px 280px at 100% 0%, rgba(0, 180, 230, 0.13), transparent 60%), radial-gradient(640px 280px at 0% 100%, rgba(59, 91, 255, 0.13), transparent 60%), var(--surface-2); box-shadow: var(--shadow-lg); }
.lead-box h2 { margin: 0 0 8px !important; font-size: 26px !important; }
.lead-box > p { color: var(--text-2); margin: 0 0 20px !important; font-size: 16px !important; }
.lead-form { display: grid; gap: 14px; margin-top: 22px; }
.lead-form .form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.lead-form .form__consent { font-size: 13px; }
.lead-form .form__note { text-align: left; }
.lead-ok { display: none; margin-top: 18px; padding: 18px 20px; border-radius: 14px; background: rgba(61, 220, 132, 0.12); border: 1px solid rgba(61, 220, 132, 0.4); font-size: 16px; }
.lead-ok.is-on { display: block; }
.lead-err { display: none; margin-top: 12px; font-size: 14px; color: #c0324b; }
.lead-err.is-on { display: block; }

/* автор */
.author { display: flex; gap: 16px; align-items: flex-start; margin: 34px 0 0; padding: 20px 22px; border-radius: 18px; border: 1px solid var(--border); background: var(--surface); }
.author__ava { flex: 0 0 56px; height: 56px; border-radius: 16px; display: grid; place-items: center; background: var(--gradient); color: #fff; font-family: var(--font-display); font-weight: 800; }
.author b { display: block; font-family: var(--font-display); font-size: 16px; }
.author p { margin: 4px 0 0 !important; font-size: 14px !important; color: var(--text-2) !important; }
.article__note { margin-top: 18px; font-size: 13px; color: var(--text-3); }

/* похожие статьи */
.related { margin-top: 44px; }
.related > h2 { font-size: 22px !important; margin: 0 0 18px !important; }
.related__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.rel-card { display: flex; flex-direction: column; border-radius: 18px; overflow: hidden; border: 1px solid var(--border); background: var(--surface); box-shadow: var(--shadow); transition: transform 0.35s var(--ease), box-shadow 0.25s; }
.rel-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.rel-card img { width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; display: block; margin: 0; border-radius: 0; }
.rel-card span { padding: 14px 16px 16px; font-family: var(--font-display); font-weight: 600; font-size: 14px; line-height: 1.35; color: var(--text); }

/* таблицы */
.table-wrap { overflow-x: auto; margin: 22px 0 28px; border-radius: 14px; border: 1px solid var(--border); background: var(--surface); }
.table-wrap table { margin: 0; }
.article th, .article td { vertical-align: top; }

/* каталог статей */
.articles-tools { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 28px; }
.chip { padding: 9px 16px; border-radius: 999px; font-size: 14px; font-weight: 500; border: 1px solid var(--border); background: var(--surface); color: var(--text-2); transition: all 0.2s; cursor: pointer; }
.chip:hover { color: var(--text); border-color: var(--border-strong); }
.chip.is-active { background: var(--text); color: #fff; border-color: var(--text); }
.article-card { overflow: hidden; padding: 0; gap: 0; }
.article-card__img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; background: var(--bg-2); }
.article-card__body { display: flex; flex-direction: column; gap: 12px; padding: 22px 24px 24px; flex: 1; }
.article-card.is-hidden { display: none; }

/* оглавление внутри статьи для якорей под фиксированной шапкой */
.article h2, .article h3 { scroll-margin-top: 90px; }

@media (max-width: 900px) {
  .related__grid { grid-template-columns: 1fr; }
  .lead-form .form__row { grid-template-columns: 1fr; }
  .lead-box { padding: 24px; }
  .article-page main { padding-top: 100px; }
}
@media (max-width: 640px) {
  .cta-row .btn { flex: 1 1 100%; justify-content: center; }
  .cta-bar { padding: 14px 16px; }
  .tldr { padding: 18px; }
}