/* Статьи, подуслуги и калькуляторы STROIBEL — дополнение к main.css v92 и pages.css v13.
   Префиксы: st- (статьи, хабы), kc- (калькуляторы). */

/* ── шапка статьи ── */
.st-hero .svc-lead{max-width:40em}
.st-meta{margin-top:16px;font-size:13.5px;color:#6B6760}
.st-meta a{color:inherit;border-bottom:1px solid #CFCAC1;transition:color .2s,border-color .2s}
.st-meta a:hover{color:#9E4F0C;border-color:currentColor}
.st-hero-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}

/* ── раскладка: текст + боковая колонка ── */
.st-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start;
  padding-top:44px;padding-bottom:72px}
.st-side{align-self:stretch}
.st-side-in{position:sticky;top:96px;display:grid;gap:18px;max-height:calc(100vh - 112px);overflow-y:auto;
  overscroll-behavior:contain;scrollbar-width:thin;padding:3px}

/* ── текст ── */
.st-body{max-width:720px;font-size:17px;line-height:1.72;color:#2B2F36;min-width:0}
.st-body p,.st-body ul,.st-body ol{margin:0 0 16px}
.st-body h2{font-size:clamp(22px,2.6vw,28px);line-height:1.2;letter-spacing:-.018em;color:var(--ink);
  margin:44px 0 14px;text-wrap:balance}
.st-body h3{font-size:19px;line-height:1.3;letter-spacing:-.01em;color:var(--ink);margin:28px 0 8px}
.st-body > h2:first-child,.st-body > h3:first-child{margin-top:0}
.st-body strong{color:var(--ink);font-weight:700}
.st-body a:not(.btn){color:#9E4F0C;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;
  transition:color .2s}
.st-body a:not(.btn):hover{color:#C8660E}
.st-body ul,.st-body ol{list-style:none;padding:0}
.st-body li{position:relative;padding-left:26px;margin-bottom:8px}
.st-body ul > li::before{content:"";position:absolute;left:5px;top:.72em;width:7px;height:7px;border-radius:50%;
  background:var(--accent)}
.st-body ol{counter-reset:st}
.st-body ol > li{counter-increment:st;padding-left:36px}
.st-body ol > li::before{content:counter(st);position:absolute;left:0;top:.18em;width:24px;height:24px;border-radius:50%;
  background:var(--tint);color:var(--ink);font-size:12.5px;font-weight:800;line-height:24px;text-align:center}

/* «Коротко» */
.st-short{background:var(--tint);border-radius:16px;padding:20px 24px 6px;margin:0 0 30px}
.st-short-t{display:block;font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#6B6760;margin-bottom:8px}
.st-short ul{margin-bottom:12px}
.st-short li{font-size:16px;line-height:1.6}

/* заметка «Как делаем мы» */
.st-note{margin:24px 0;padding:18px 22px;background:#fff;border:1px solid var(--line);border-radius:14px}
.st-note-l{display:block;font-size:11.5px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#9E4F0C;margin-bottom:6px}
.st-note p{margin:0;font-size:16px;line-height:1.65}

/* таблицы */
.st-table{margin:22px 0 26px;border:1px solid var(--line);border-radius:14px;background:#fff;overflow-x:auto;
  -webkit-overflow-scrolling:touch}
.st-table table{width:100%;border-collapse:collapse;font-size:15px;line-height:1.45;font-variant-numeric:tabular-nums}
.st-table th{background:var(--tint);font-size:13px;font-weight:700;text-align:left;padding:11px 16px;color:#3E434B;
  vertical-align:bottom}
.st-table td{padding:11px 16px;border-top:1px solid var(--line);vertical-align:top}
.st-table .n{text-align:right;white-space:nowrap}
.st-table th.n{white-space:normal}
.st-table caption{caption-side:bottom;text-align:left;padding:10px 16px 12px;font-size:13px;line-height:1.5;color:#6B6760;
  border-top:1px solid var(--line)}

/* фото */
.st-fig{margin:26px 0}
.st-fig-b{display:block;width:100%;border-radius:14px;overflow:hidden;cursor:zoom-in;background:var(--tint)}
.st-fig-b img{width:100%;height:auto;transition:transform .5s var(--ease-soft)}
.st-fig-b:hover img{transform:scale(1.02)}
.st-fig figcaption{font-size:13.5px;line-height:1.45;color:#6B6760;margin-top:8px}
.st-fig-p{max-width:420px}
.st-figs{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:26px 0;align-items:start}
.st-figs .st-fig{margin:0}

/* частые вопросы внутри статьи */
.st-faq{margin-top:44px}
.st-faq .faq-list{margin-top:18px}
.st-faq .faq-list p{margin:0;font-size:15px;line-height:1.6}
.st-faq .faq-list li{padding:0}

/* оглавление */
.st-toc{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 14px 12px}
.st-toc-t{display:block;font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#6B6760;margin:0 6px 8px}
.st-toc ol,.st-toc-m ol{list-style:none;margin:0;padding:0}
.st-toc a{display:block;padding:7px 10px;border-radius:9px;font-size:14px;line-height:1.35;color:#3E434B;
  transition:background .15s,color .15s}
.st-toc a:hover{background:var(--tint);color:var(--ink)}
.st-toc a.on{background:var(--tint);color:var(--ink);font-weight:600;box-shadow:inset 3px 0 0 var(--accent)}
.st-toc-m{display:none}

/* колонка с контактами */
.st-cta{background:var(--graphite);color:#F0EFEA;border-radius:16px;padding:22px}
.st-cta b{display:block;font-size:18px;line-height:1.3;color:#fff}
.st-cta p{font-size:13.5px;line-height:1.55;color:var(--mut-d);margin:8px 0 14px}
.st-cta-tel{display:block;font-family:Unbounded,sans-serif;font-size:18px;font-weight:900;color:#fff;margin-bottom:12px}
.st-cta .btn{width:100%}
.st-cta .btn + .btn{margin-top:8px}
.st-cta .btn-ghost{color:#fff;border:1px solid var(--line-d);background:transparent}
.st-cta .btn-ghost:hover{background:rgba(255,255,255,.07);border-color:#4A5058}

/* ── карточки статей и калькуляторов ── */
.st-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin-top:26px}
.st-card{display:flex;flex-direction:column;gap:8px;background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:22px 22px 20px;transition:transform .25s var(--ease-out),border-color .2s,box-shadow .25s}
.st-card:hover{transform:translateY(-3px);border-color:#D9D5CD;box-shadow:0 12px 28px -16px rgba(20,22,26,.28)}
.st-card-g{font-size:11.5px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#9E4F0C}
.st-card b{font-size:17.5px;line-height:1.3;color:var(--ink);text-wrap:balance}
.st-card-d{flex:1;font-size:14.5px;line-height:1.55;color:#5B5F66}
.st-card-m{font-size:14px;font-weight:700;color:var(--ink);margin-top:4px;transition:color .2s}
.st-card:hover .st-card-m{color:#9E4F0C}
.st-group + .st-group{margin-top:56px}
.st-group .sec-sub{margin-top:8px;max-width:44em}
.st-more-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.st-more-row .btn{white-space:normal;text-wrap:balance}

/* тёмный финальный блок */
.st-final h2{color:#fff;font-size:clamp(24px,3.2vw,36px);line-height:1.15;text-wrap:balance}
.st-final p{color:var(--mut-d);font-size:17px;line-height:1.6;margin:12px auto 0;max-width:36em}

/* текст на страницах услуг и калькуляторов */
.st-prose{max-width:760px}

/* ── калькуляторы ── */
.kc{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:24px;align-items:start}
.kc-form{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px}
.kc-fs{border:0;margin:0;padding:0;min-width:0}
.kc-fs + .kc-fs{margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}
.kc-fs legend,.kc-lg{display:block;float:left;width:100%;font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;
  color:#6B6760;margin-bottom:12px;padding:0}
.kc-fs legend + *{clear:left}
.kc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(132px,1fr));gap:12px 14px}
.kc-f{display:flex;flex-direction:column;gap:6px;font-size:13.5px;font-weight:600;line-height:1.3;color:#3E434B}
.kc-f input,.kc-f select{font:inherit;font-size:16px;font-weight:500;color:var(--ink);background:var(--paper);
  border:1px solid #D9D5CD;border-radius:10px;padding:11px 12px;width:100%;min-width:0;font-variant-numeric:tabular-nums;
  transition:border-color .15s,box-shadow .15s}
.kc-f input:focus,.kc-f select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(224,122,31,.25)}
.kc-f input[aria-invalid="true"]{border-color:#C2410C;background:#FFF6F0}
.kc-f small{font-size:12px;font-weight:500;color:#6B6760}
.kc-check{display:flex;align-items:center;gap:10px;font-weight:600;font-size:15px;cursor:pointer;margin:0 0 12px}
.kc-check input{width:20px;height:20px;accent-color:var(--accent);flex:none}
.kc-dep[hidden]{display:none}
.kc-more{margin-top:18px;border-top:1px solid var(--line);padding-top:14px}
.kc-more summary{cursor:pointer;font-size:14px;font-weight:700;color:#3E434B;list-style:none}
.kc-more summary::-webkit-details-marker{display:none}
.kc-more summary::after{content:" +";color:var(--accent)}
.kc-more[open] summary::after{content:" −"}
.kc-more .kc-grid{margin-top:12px}
.kc-res{background:var(--tint);border-radius:16px;padding:22px;position:sticky;top:96px}
.kc-res-t{display:block;font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#6B6760}
.kc-sub{font-size:13px;font-weight:800;color:var(--ink);margin:18px 0 2px}
.kc-res dl{margin:0}
.kc-row{display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding:9px 0;
  border-top:1px solid #E2DED6;font-size:15px;line-height:1.4}
.kc-row dt{color:#3E434B}
.kc-row dd{margin:0;font-weight:700;color:var(--ink);text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.kc-big dd{font-size:22px;font-weight:800}
.kc-note{font-size:13px;line-height:1.55;color:#6B6760;margin-top:14px}
.kc-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}
.kc-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;display:flex;flex-direction:column;gap:14px}
.kc-card h2{font-size:19px;line-height:1.3;letter-spacing:-.01em}
.kc-card .kc-res{position:static;padding:16px 18px;margin-top:auto}
.kc-card .kc-row:first-child{border-top:0}
.kc-top{display:flex;flex-wrap:wrap;gap:12px 18px;align-items:end;margin-bottom:18px}
.kc-top .kc-f{width:160px}

/* ── ширина ── */
@media (max-width:1060px){
  .st-layout{grid-template-columns:minmax(0,1fr);gap:0;padding-top:28px;padding-bottom:56px}
  .st-side{display:none}
  .st-toc-m{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;margin:0 0 22px}
  .st-toc-m summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;
    padding:14px 18px;font-size:15px;font-weight:700;color:var(--ink)}
  .st-toc-m summary::-webkit-details-marker{display:none}
  .st-toc-m summary::after{content:"";width:9px;height:9px;border-right:2px solid #6B6760;border-bottom:2px solid #6B6760;
    transform:rotate(45deg) translateY(-3px);transition:transform .2s}
  .st-toc-m[open] summary::after{transform:rotate(-135deg) translateY(-2px)}
  .st-toc-m ol{padding:0 8px 10px}
  .st-toc-m a{display:block;padding:8px 10px;border-radius:9px;font-size:15px;line-height:1.35;color:#3E434B}
  .st-body{max-width:none}
}
@media (max-width:860px){
  .kc{grid-template-columns:minmax(0,1fr)}
  .kc-res{position:static}
}
@media (max-width:640px){
  .st-body{font-size:16.5px}
  .st-body h2{margin-top:36px}
  .st-short{padding:18px 18px 4px}
  .st-table th,.st-table td{padding:10px 12px}
  .kc-form,.kc-res{padding:18px}
}
@media (max-width:560px){
  .st-figs{grid-template-columns:1fr}
  .st-table-stack table{display:flex;flex-direction:column}
  .st-table-stack thead{display:none}
  .st-table-stack tbody,.st-table-stack tr,.st-table-stack td{display:block}
  .st-table-stack tr{padding:12px 14px 10px;border-top:1px solid var(--line)}
  .st-table-stack tr:first-child{border-top:0}
  .st-table-stack td{padding:0 0 6px;border:0}
  .st-table-stack td:first-child{font-weight:700;color:var(--ink);padding-bottom:8px}
  .st-table-stack td[data-label]::before{content:attr(data-label);display:block;font-size:12.5px;line-height:1.4;
    font-weight:600;color:#6B6760}
  .st-table-stack caption{order:2;display:block}
}
@media (max-width:400px){
  .st-hero h1{font-size:clamp(20px,6.5vw,25px)}
  .st-table th,.st-table td{padding:9px 8px}
}
@media (prefers-reduced-motion:reduce){
  .st-card,.st-fig-b img{transition:none}
  .st-card:hover{transform:none}
  .st-fig-b:hover img{transform:none}
}