/* Статьи, разделы и страница 404. Разметку генерирует tools/build.py. */
:root{--text:#1d1d1f;--head:#111113;--muted:#6e6e73;--faint:#8e8e93;--line:#e8e8ec;--card:#f5f5f7;
      --accent:#2563eb;--accent-hover:#1d4ed8;--accent-soft:#eff4ff}
*{box-sizing:border-box}
html{scroll-padding-top:88px}
body{margin:0;background:#fff;color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text",Inter,sans-serif;
     font-size:17px;line-height:1.7;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%}

.doc{width:min(1060px,100% - 48px);margin-inline:auto;padding:28px 0 96px}
.doc a{color:var(--accent);text-decoration:none}
.doc a:hover{text-decoration:underline}

/* Хлебные крошки */
.crumbs{font-size:13.5px;line-height:1.4;color:var(--faint);margin:0 0 28px}
.doc .crumbs ol{display:flex;flex-wrap:wrap;gap:4px 0;margin:0;padding:0;list-style:none}
.doc .crumbs li{margin:0}
.crumbs li{display:flex;align-items:center}
.crumbs li+li::before{content:"›";margin:0 8px;color:#c7c7cc}
.doc .crumbs a{color:var(--muted)}
.crumbs [aria-current]{color:var(--faint)}

/* Сетка: текст + содержание сбоку */
.doc-grid{display:grid;grid-template-columns:minmax(0,720px) 232px;gap:64px;justify-content:space-between;align-items:start}
.doc-main{min-width:0}
.doc-aside{position:sticky;top:96px}
@media(max-width:1080px){.doc-grid{grid-template-columns:minmax(0,720px);justify-content:center}.doc-aside{display:none}}

/* Заголовки и текст */
.doc h1{margin:0 0 20px;color:var(--head);font-size:clamp(30px,4.4vw,44px);font-weight:800;letter-spacing:-.025em;line-height:1.12;text-wrap:balance}
.doc h2{margin:56px 0 16px;color:var(--head);font-size:clamp(23px,2.8vw,28px);font-weight:750;letter-spacing:-.015em;line-height:1.25;text-wrap:balance}
.doc h3{margin:32px 0 10px;color:var(--head);font-size:19px;font-weight:700;line-height:1.35}
.doc p{margin:0 0 16px}
.doc ul,.doc ol{margin:0 0 20px;padding-left:24px}
.doc li{margin:0 0 8px}
.doc li>p{margin:0 0 8px}
.doc strong{font-weight:650;color:var(--head)}
.doc code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.86em;background:var(--card);border-radius:6px;padding:2px 6px;white-space:nowrap}
.doc kbd{display:inline-block;min-width:1.7em;margin:0 1px;padding:0 6px;font-family:inherit;font-size:.82em;line-height:1.7;text-align:center;
         color:var(--head);background:#fff;border:1px solid #d2d2d7;border-bottom-width:2px;border-radius:6px;vertical-align:1px}
.lede{margin:0 0 32px;color:var(--muted);font-size:19px;line-height:1.6}

/* Автор и даты */
.byline{display:flex;align-items:center;gap:12px;margin:0 0 28px;font-size:14.5px;line-height:1.45;color:var(--muted)}
.byline b{color:var(--head);font-weight:600}
.byline-meta{display:flex;flex-wrap:wrap;gap:2px 14px;font-size:13.5px;color:var(--faint)}
.avatar{flex:none;display:grid;place-items:center;width:42px;height:42px;border-radius:50%;
        background:linear-gradient(135deg,#60a5fa,#2563eb);color:#fff;font-weight:700;font-size:17px}
.avatar-lg{width:56px;height:56px;font-size:22px}
img.avatar{object-fit:cover;background:var(--card)}

/* Коротко */
.short{margin:0 0 32px;padding:20px 24px;background:var(--accent-soft);border-radius:16px;border-left:4px solid var(--accent)}
.short-t{margin:0 0 6px;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
.short p:last-child,.short ol:last-child,.short ul:last-child{margin-bottom:0}

/* Выбор способа под заголовком */
.ways{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:0 0 32px}
.doc a.way{display:flex;flex-direction:column;gap:4px;padding:18px 20px;border:1px solid var(--line);border-radius:16px;
           color:var(--text);transition:border-color .15s,box-shadow .15s}
.doc a.way:first-child{border-color:#bfd3fb;background:var(--accent-soft)}
.doc a.way:hover{border-color:var(--accent);box-shadow:0 10px 24px rgba(17,17,19,.07);text-decoration:none}
.way b{color:var(--head);font-size:17px}
.way b::after{content:" ↓";color:var(--accent)}
.way span{color:var(--muted);font-size:14.5px;line-height:1.45}
@media(max-width:600px){.ways{grid-template-columns:minmax(0,1fr)}}

/* Содержание */
.toc{font-size:14px;line-height:1.45}
.toc-t{margin:0 0 10px;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--faint)}
.toc ol{margin:0;padding:0;list-style:none;border-left:2px solid var(--line)}
.toc li{margin:0}
.doc .toc a{display:block;margin-left:-2px;padding:6px 0 6px 14px;border-left:2px solid transparent;color:var(--muted)}
.doc .toc a:hover{color:var(--head);text-decoration:none}
.doc .toc a.on{border-color:var(--accent);color:var(--accent);font-weight:600}
.toc-m{display:none;margin:0 0 32px;border:1px solid var(--line);border-radius:14px}
.toc-m summary{padding:14px 18px;font-weight:600;cursor:pointer;color:var(--head)}
.toc-m ol{margin:0;padding:0 18px 14px 40px}
.toc-m li{margin:0 0 6px;font-size:15.5px}
@media(max-width:1080px){.toc-m{display:block}}

/* Шаги со скриншотами */
.doc ol.steps{counter-reset:step;margin:0 0 24px;padding:0;list-style:none}
.doc ol.steps>li{counter-increment:step;position:relative;margin:0 0 24px;padding-left:28px}
.doc ol.steps>li::before{content:counter(step) ".";position:absolute;left:0;top:0;color:var(--head);font-weight:700;
        font-variant-numeric:tabular-nums}
.doc ol.steps>li>figure{margin-top:14px}

/* Скриншоты */
.shot{margin:20px 0 28px}
.shot a{display:block}
.shot img{display:block;width:auto;max-width:100%;height:auto;margin-inline:auto;border-radius:12px;
          box-shadow:0 0 0 1px rgba(17,17,19,.08),0 10px 30px rgba(17,17,19,.10)}
.shot figcaption{margin-top:10px;font-size:14px;line-height:1.5;color:var(--muted);text-align:center}

/* Врезки */
.callout{margin:24px 0;padding:16px 20px;border-radius:14px;background:var(--card);font-size:16px}
.callout-t{margin:0 0 4px;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.callout p:last-child{margin-bottom:0}
.callout-warning{background:#fff7ed;box-shadow:inset 4px 0 0 #f59e0b}
.callout-warning .callout-t{color:#b45309}
.callout-tip{background:#ecfdf5;box-shadow:inset 4px 0 0 #10b981}
.callout-tip .callout-t{color:#047857}
.callout-note{box-shadow:inset 4px 0 0 #c7c7cc}

/* Таблицы */
.tbl-wrap{overflow-x:auto;margin:20px 0 28px;border:1px solid var(--line);border-radius:14px}
.tbl{width:100%;border-collapse:collapse;font-size:15px;line-height:1.5}
.tbl th,.tbl td{padding:12px 16px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
.tbl tr:last-child td{border-bottom:0}
.tbl th{background:var(--card);color:var(--muted);font-size:13px;font-weight:600}

/* Частые вопросы — раскрывающимся списком, как на главной */
.faq-list{margin:8px 0 0;border-top:1px solid var(--line)}
.faq-list details{border-bottom:1px solid var(--line)}
.faq-list summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0;
        list-style:none;cursor:pointer;color:var(--head);font-size:17px;font-weight:600;line-height:1.4;transition:color .15s}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary:hover{color:var(--accent)}
.faq-ic{position:relative;flex:none;width:28px;height:28px;border-radius:50%;background:var(--card);color:var(--text);
        transition:background .15s,color .15s}
.faq-ic::before,.faq-ic::after{content:"";position:absolute;left:50%;top:50%;width:12px;height:2px;margin:-1px 0 0 -6px;
        border-radius:2px;background:currentColor;transition:transform .2s}
.faq-ic::after{transform:rotate(90deg)}
.faq-list details[open] .faq-ic{background:rgba(37,99,235,.1);color:var(--accent)}
.faq-list details[open] .faq-ic::after{transform:rotate(0)}
.faq-a{padding:0 44px 20px 0;color:var(--muted);font-size:16px;line-height:1.6}
.faq-a p:last-child{margin-bottom:0}
@media(max-width:600px){.faq-a{padding-right:0}}

/* Блок программы */
.product{display:flex;gap:18px;align-items:flex-start;margin:40px 0;padding:24px;border:1px solid var(--line);border-radius:18px;
         background:linear-gradient(180deg,#fff,#fafafa)}
.product img{flex:none;width:56px;height:56px;border-radius:13px}
.product-body p{margin:0 0 12px;font-size:16px}
.btn{display:inline-flex;align-items:center;height:42px;padding:0 18px;border-radius:12px;background:var(--accent);
     color:#fff !important;font-size:15px;font-weight:600;box-shadow:0 1px 2px rgba(17,17,19,.08),0 6px 16px rgba(37,99,235,.26)}
.btn:hover{background:var(--accent-hover);text-decoration:none !important}

/* Об авторе */
.author-box{display:flex;gap:16px;align-items:flex-start;margin:56px 0 0;padding:24px 0 0;border-top:1px solid var(--line);font-size:15px;color:var(--muted)}
.author-box b{color:var(--head)}
.author-box p{margin:4px 0 0}

/* Карточки: похожие статьи и разделы */
.related{margin:64px 0 0}
.related h2{margin:0 0 20px}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.doc a.card{display:flex;flex-direction:column;gap:6px;padding:20px;border:1px solid var(--line);border-radius:16px;color:var(--text);
            transition:border-color .15s,box-shadow .15s,transform .15s}
.doc a.card:hover{border-color:#c9d8fb;box-shadow:0 12px 28px rgba(17,17,19,.08);text-decoration:none;transform:translateY(-1px)}
.card-hub{font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--faint)}
.card b{color:var(--head);font-size:17px;line-height:1.35}
.card span:last-child{color:var(--muted);font-size:14.5px;line-height:1.45}
@media(max-width:860px){.cards{grid-template-columns:minmax(0,1fr)}}

/* Раздел и «Инструкции» */
.hub{max-width:900px}
.hub-section{margin:48px 0 0}
.hub-section h2{margin:0 0 6px}
.hub-section>p{margin:0 0 18px;color:var(--muted)}
.cards-2{grid-template-columns:repeat(2,minmax(0,1fr))}
@media(max-width:700px){.cards-2{grid-template-columns:minmax(0,1fr)}}

@media(max-width:600px){
  body{font-size:16.5px}
  .doc{width:min(1060px,100% - 32px);padding-top:18px}
  .crumbs{margin-bottom:18px}
  .short{padding:16px 18px}
  .doc ol.steps>li{padding-left:28px}
  .product{flex-direction:column}
}