/* ===========================================================
   article.css — типографика и блоки статей блога.
   Подключается после style.css и пользуется его переменными.
   Правила швейцарской сетки: острые углы, волосяные линейки,
   красный только как мелкий акцент и на кнопке заявки.
   =========================================================== */

/* --- шапка статьи --- */
.art-head{max-width:820px}
.art-rubric{
  display:inline-block;padding:6px 12px;border:1px solid var(--line-s);
  font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--ink);
}
.art-head h1{margin:18px 0 14px}
.art-meta{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:center;margin-top:20px;color:var(--mut2);font-size:14.5px}
.art-meta .dotsep{opacity:.5}
.art-meta a{color:var(--mut);text-decoration:underline;text-decoration-color:var(--line-s);text-underline-offset:3px}
.art-meta a:hover{color:var(--red-text)}

/* --- сетка: текст и оглавление сбоку --- */
.art-wrap{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:var(--gap);align-items:start;border-top:1px solid var(--rule);padding-top:34px}
@media (max-width:980px){.art-wrap{grid-template-columns:minmax(0,1fr);gap:0}}

.art-toc{position:sticky;top:96px;border-left:1px solid var(--line);padding-left:20px}
.art-toc b{display:block;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--mut2);margin-bottom:14px;font-weight:600}
.art-toc ol{list-style:none;margin:0;padding:0;counter-reset:toc}
.art-toc li{counter-increment:toc;margin:0 0 10px}
.art-toc a{display:grid;grid-template-columns:22px minmax(0,1fr);gap:6px;color:var(--mut);font-size:14px;line-height:1.45}
.art-toc a::before{content:"0" counter(toc);color:var(--mut2);font-variant-numeric:tabular-nums;font-size:12.5px;padding-top:1px}
.art-toc a:hover{color:var(--ink)}
@media (max-width:980px){
  .art-toc{position:static;margin:0 0 34px;border-left:0;border-top:1px solid var(--line);padding:22px 0 0}
  .art-toc ol{columns:2;column-gap:calc(var(--gap) * 2)}
  .art-toc li{break-inside:avoid}
}
@media (max-width:560px){.art-toc ol{columns:1}}

/* --- тело статьи --- */
.art-body{font-size:17.5px;line-height:1.7;color:var(--ink);max-width:720px}
.art-body>*:first-child{margin-top:0}
.art-body p{margin:0 0 20px}
.art-body h2{
  font-size:clamp(24px,2.8vw,30px);font-weight:700;letter-spacing:-.025em;line-height:1.2;color:var(--ink);
  margin:52px 0 16px;padding-top:18px;border-top:1px solid var(--line);scroll-margin-top:96px;
}
.art-body h2:first-of-type{margin-top:8px}
.art-body h3{font-size:19.5px;font-weight:600;letter-spacing:-.015em;line-height:1.35;color:var(--ink);margin:34px 0 12px;scroll-margin-top:96px}
.art-body a{color:var(--ink);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;text-decoration-color:var(--line-s);transition:color var(--t-fast) var(--ease),text-decoration-color var(--t-fast) var(--ease)}
.art-body a:hover{color:var(--red-text);text-decoration-color:currentColor}
.art-body strong,.art-body b{font-weight:600}
.art-body em{font-style:italic}
.art-body ul,.art-body ol{margin:0 0 22px;padding-left:0;list-style:none}
.art-body ul>li,.art-body ol>li{position:relative;padding-left:26px;margin:0 0 11px}
.art-body ul>li::before{content:"";position:absolute;left:4px;top:.72em;width:6px;height:6px;background:var(--ink)}
.art-body ol{counter-reset:li}
.art-body ol>li{counter-increment:li}
.art-body ol>li::before{content:counter(li) ".";position:absolute;left:0;top:0;color:var(--mut2);font-weight:600;font-size:15.5px;font-variant-numeric:tabular-nums}
.art-body li>ul,.art-body li>ol{margin:10px 0 0}
.art-body hr{border:0;height:1px;background:var(--line);margin:40px 0}

/* врезка */
.note{margin:28px 0;padding:20px 22px;border:1px solid var(--line);background:var(--bg2);font-size:16.5px;line-height:1.6}
.note>b{display:block;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--mut2);margin-bottom:8px;font-weight:600}
.note p:last-child{margin:0}
.note--warn{border-left:2px solid var(--red)}

/* таблицы */
.art-table{margin:28px 0;overflow-x:auto;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);-webkit-overflow-scrolling:touch}
.art-table table{width:100%;border-collapse:collapse;font-size:15.5px;min-width:520px}
.art-table th,.art-table td{padding:13px 16px 13px 0;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.art-table th:last-child,.art-table td:last-child{padding-right:0}
.art-table thead th{color:var(--mut2);font-weight:600;font-size:12px;letter-spacing:.08em;text-transform:uppercase;white-space:nowrap;padding-top:12px;padding-bottom:12px}
.art-table tbody tr:last-child td{border-bottom:0}
.art-table td{font-variant-numeric:tabular-nums}
.art-table caption{caption-side:bottom;padding:12px 0 0;color:var(--mut2);font-size:13.5px;text-align:left}

/* формула и расчёт */
.calc{
  margin:24px 0;padding:18px 20px;border:1px solid var(--line);background:var(--bg2);
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:15px;line-height:1.75;color:var(--ink);overflow-x:auto;
}
.calc span{color:var(--mut)}

/* чек-лист */
.checklist{margin:24px 0;padding:0;list-style:none}
.checklist li{position:relative;padding:0 0 0 30px;margin:0 0 12px}
.checklist li::before{content:"";position:absolute;left:0;top:.3em;width:16px;height:16px;border:1px solid var(--ink)}
.checklist li::after{content:"";position:absolute;left:5px;top:.55em;width:5px;height:9px;border:solid var(--ink);border-width:0 1.6px 1.6px 0;transform:rotate(43deg)}

/* показатели внутри статьи */
.art-kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin:30px 0;border-top:1px solid var(--rule)}
.art-kpis div{border-bottom:1px solid var(--line);border-left:1px solid var(--line);padding:18px 18px 20px}
.art-kpis div:first-child{border-left:0;padding-left:0}
.art-kpis b{display:block;font-size:26px;font-weight:700;letter-spacing:-.03em;line-height:1.1;margin-bottom:6px;font-variant-numeric:tabular-nums}
.art-kpis span{display:block;color:var(--mut);font-size:14px;line-height:1.45}
@media (max-width:700px){
  .art-kpis{grid-template-columns:1fr}
  .art-kpis div,.art-kpis div:first-child{border-left:0;padding:16px 0 18px}
}

/* мини-призыв внутри текста */
.inline-cta{margin:34px 0;padding:22px 24px;border:1px solid var(--rule);display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.inline-cta p{margin:0;flex:1 1 300px;font-size:16px;line-height:1.55;color:var(--ink)}
.inline-cta .btn{flex:none}

/* автор */
.author{display:grid;grid-template-columns:58px minmax(0,1fr);gap:18px;align-items:start;margin:52px 0 0;padding:24px 0 0;border-top:1px solid var(--rule)}
.author-ava{width:58px;height:58px;background:var(--bg2);border:1px solid var(--line);display:grid;place-items:center;font-size:19px;font-weight:700;color:var(--mut2);overflow:hidden}
.author-ava picture{display:contents}
.author-ava img{width:100%;height:100%;object-fit:cover;object-position:center 18%}
.author b{display:block;font-size:16.5px;font-weight:600}
.author .role{display:block;color:var(--mut2);font-size:14px;margin:3px 0 10px}
.author p{margin:0;color:var(--mut);font-size:15px;line-height:1.6}
.author a{color:var(--ink);text-decoration:underline;text-decoration-color:var(--line-s);text-underline-offset:3px}
.author a:hover{color:var(--red-text)}

/* читайте также */
.related{margin-top:56px}
.related>b{display:block;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--mut2);margin-bottom:0;font-weight:600;padding-bottom:16px;border-bottom:1px solid var(--rule)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.related-grid a{display:block;padding:20px 20px 24px;border-bottom:1px solid var(--line);border-left:1px solid var(--line);transition:background var(--t-base) var(--ease)}
.related-grid a:first-child{border-left:0;padding-left:0}
.related-grid a:hover{background:var(--bg2)}
.related-grid span{display:block;font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--mut2);margin-bottom:8px}
.related-grid em{display:block;font-style:normal;font-size:15.5px;font-weight:600;line-height:1.4;letter-spacing:-.01em}
.related-grid a:hover em{color:var(--red-text)}
@media (max-width:860px){
  .related-grid{grid-template-columns:1fr}
  .related-grid a,.related-grid a:first-child{border-left:0;padding:18px 0 20px}
}

/* печать */
@media print{
  .art-toc,.related,.inline-cta,.mcta,.totop,header,footer,.cta{display:none!important}
  .art-body{max-width:100%}
}