/* Калькулятор тёплого пола — мир темы «Чертёж»: белый лист, чернильные линии, жёлтый маркер
   только у главного. Общий слой _shared/rb-calc.css задаёт селекты, плитки, чипы, справку
   и буквы формул; здесь — раскладка и то, что есть только у этой страницы: план укладки
   контуров (SVG на белом, труба чернилами, контуры разным штрихом, номера в кружках),
   подпись под планом, ссылка на статью. */
#content .remboo-teplyj-pol{
  --ink:#111;--muted:#5A5A56;--line:#111;--rule:#E8E8E5;--border:#BDBDB8;--paper:#fff;--panel:#F5F5F3;
  --accent:#FFD500;--accent-soft:#FFF3B0;--accent-dark:#111;--blue:#111;--danger:#B23A0C;--warn:#FF5A1F;
  clear:both;width:100%;color:var(--ink);font:400 16px/1.55 system-ui,-apple-system,"Segoe UI",sans-serif;
}
#content .remboo-teplyj-pol *{box-sizing:border-box}
#content .remboo-teplyj-pol [hidden]{display:none!important}
#content .remboo-teplyj-pol .calc-shell{max-width:1180px;margin:0 auto;padding:clamp(18px,3vw,42px);background:var(--paper)}
#content .remboo-teplyj-pol .calc-intro{max-width:760px;margin:0 0 28px}
#content .remboo-teplyj-pol .eyebrow{margin:0 0 6px;color:var(--ink);font-size:.78rem;font-weight:800;letter-spacing:.11em;text-transform:uppercase}
#content .remboo-teplyj-pol .calculator-title,#content .remboo-teplyj-pol h2,#content .remboo-teplyj-pol h3{color:var(--ink);font-weight:760;letter-spacing:-.025em}
#content .remboo-teplyj-pol .calculator-title{margin:0 0 8px;font-size:clamp(2rem,5vw,3.6rem);line-height:1.04}
#content .remboo-teplyj-pol h2{margin:0 0 16px;font-size:clamp(1.55rem,3vw,2.25rem);line-height:1.15}
#content .remboo-teplyj-pol h3{margin:0;font-size:1.08rem;line-height:1.25}
#content .remboo-teplyj-pol p{margin:0 0 14px}
#content .remboo-teplyj-pol .calc-intro>p:last-child{color:var(--muted);font-size:1.08rem}
#content .remboo-teplyj-pol .workspace{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(360px,.92fr);gap:24px;align-items:start}
#content .remboo-teplyj-pol form{min-width:0;padding:0;border:0;background:transparent}
#content .remboo-teplyj-pol .section-title{display:flex;align-items:center;gap:12px;margin:4px 0 16px;padding-top:20px;border-top:1px solid var(--rule)}
#content .remboo-teplyj-pol .section-title:first-child{padding-top:0;border-top:0}
#content .remboo-teplyj-pol .section-title>span{display:none}
#content .remboo-teplyj-pol label{display:block;margin:0 0 15px;color:var(--ink);font-size:.93rem;font-weight:500}
#content .remboo-teplyj-pol input,#content .remboo-teplyj-pol select,#content .remboo-teplyj-pol button{font:inherit}
#content .remboo-teplyj-pol input,#content .remboo-teplyj-pol select{width:100%;min-height:48px;margin-top:6px;padding:10px 12px;border:1px solid var(--border);border-radius:0;background:#fff;color:var(--ink);font-size:1rem;box-shadow:none}
#content .remboo-teplyj-pol input:focus,#content .remboo-teplyj-pol select:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 1px var(--ink)}
#content .remboo-teplyj-pol button:focus-visible,#content .remboo-teplyj-pol summary:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
#content .remboo-teplyj-pol input:disabled,#content .remboo-teplyj-pol select:disabled{background:var(--panel);color:#767671}
#content .remboo-teplyj-pol input[aria-invalid="true"]{border-color:var(--danger)}
#content .remboo-teplyj-pol small,#content .remboo-teplyj-pol .hint{display:block;margin-top:5px;color:var(--muted);font-size:.84rem;font-weight:400;line-height:1.45}
#content .remboo-teplyj-pol form>.hint{margin:-6px 0 14px}
#content .remboo-teplyj-pol .field-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
#content .remboo-teplyj-pol .check{display:flex;align-items:center;gap:10px;min-height:32px;margin:4px 0 14px;padding:4px 0;font-weight:650;cursor:pointer}
#content .remboo-teplyj-pol .check input{flex:0 0 auto;width:24px;height:24px;min-height:0;margin:0;accent-color:var(--ink);appearance:auto}
#content .remboo-teplyj-pol details{border-top:1px solid var(--rule)}
#content .remboo-teplyj-pol details summary{cursor:pointer;list-style:none}
#content .remboo-teplyj-pol details summary::-webkit-details-marker{display:none}
#content .remboo-teplyj-pol aside{position:sticky;top:18px;min-width:0}
#content .remboo-teplyj-pol .result-card{border:1.5px solid var(--ink);background:var(--paper);color:var(--ink);padding:22px 24px}
#content .remboo-teplyj-pol .result-card>.eyebrow{padding:0}
#content .remboo-teplyj-pol #calc-error{margin:0 0 16px;padding:10px 0 10px 14px;border-left:4px solid var(--warn);color:var(--danger);font-weight:700}
#content .remboo-teplyj-pol #calc-output{padding:0}
#content .remboo-teplyj-pol .primary-result{display:flex;flex-direction:column;padding:2px 0 18px}
#content .remboo-teplyj-pol .primary-result strong{font-size:clamp(2.25rem,6vw,4rem);line-height:1.05;letter-spacing:-.045em}
#content .remboo-teplyj-pol .primary-result span{margin-top:4px;color:var(--muted);font-size:.86rem}
#content .remboo-teplyj-pol .top-metrics{display:grid;grid-template-columns:repeat(3,1fr);border-top:1.5px solid var(--ink);border-bottom:1px solid var(--rule)}
#content .remboo-teplyj-pol .top-metrics>div{padding:12px 12px 12px 0;border-right:1px solid var(--rule)}
#content .remboo-teplyj-pol .top-metrics>div:last-child{border-right:0}
#content .remboo-teplyj-pol .top-metrics>div+div{padding-left:12px}
#content .remboo-teplyj-pol .top-metrics span,#content .remboo-teplyj-pol .top-metrics strong{display:block}
#content .remboo-teplyj-pol .top-metrics span{min-height:2.5em;color:var(--muted);font-size:.76rem;line-height:1.25}
#content .remboo-teplyj-pol .top-metrics strong{margin-top:4px;font-size:1rem;white-space:nowrap;font-variant-numeric:tabular-nums}
#content .remboo-teplyj-pol .direct-answer{margin:18px 0;padding:0;font-weight:500;line-height:1.5}
#content .remboo-teplyj-pol .details-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px}
#content .remboo-teplyj-pol .details-grid>div{min-width:0;padding:12px 0;border-top:1px solid var(--rule)}
#content .remboo-teplyj-pol .details-grid span,#content .remboo-teplyj-pol .details-grid strong,#content .remboo-teplyj-pol .details-grid em{display:block;margin:0}
#content .remboo-teplyj-pol .details-grid span{color:var(--muted);font-size:.76rem}
#content .remboo-teplyj-pol .details-grid strong{margin-top:2px;font-size:1.12rem;font-variant-numeric:tabular-nums}
#content .remboo-teplyj-pol .details-grid em{color:var(--muted);font-size:.78rem;font-style:normal;line-height:1.35}
#content .remboo-teplyj-pol .warnings{margin-top:16px;padding:4px 0 4px 14px;border-left:4px solid var(--warn);color:var(--ink);font-size:.8rem}
#content .remboo-teplyj-pol .warnings p{margin:0 0 8px}#content .remboo-teplyj-pol .warnings p:last-child{margin-bottom:0}
#content .remboo-teplyj-pol .actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:16px 0 0}
#content .remboo-teplyj-pol .actions button{min-height:46px;padding:10px 14px;border:1.5px solid var(--ink);border-radius:0;background:#fff;color:var(--ink);font-weight:700;cursor:pointer}
#content .remboo-teplyj-pol .actions button:hover{background:var(--accent-soft)}
#content .remboo-teplyj-pol .actions button:disabled{opacity:.45;cursor:not-allowed}
#content .remboo-teplyj-pol #share-status{min-height:0;margin:0;padding:6px 0 0;color:var(--muted);font-size:.8rem}
#content .remboo-teplyj-pol #share-link{width:100%;margin:8px 0 0}
#content .remboo-teplyj-pol .article-link{display:flex;justify-content:space-between;margin-top:10px;padding:14px 16px;border:1px solid var(--rule);color:var(--ink)!important;font-weight:700;text-decoration:none!important}
#content .remboo-teplyj-pol .article-link:hover{border-color:var(--ink)}
#content .remboo-teplyj-pol .noscript{margin:18px 0;padding:14px;border-left:4px solid var(--warn)}

/* Пояснения и формулы — на белом, без заливки */
#content .remboo-teplyj-pol section{margin-top:clamp(42px,7vw,82px)}
#content .remboo-teplyj-pol .explanation{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(260px,.65fr);gap:28px;align-items:start;padding:clamp(24px,4vw,42px) 0 0;border-top:1.5px solid var(--ink)}
#content .remboo-teplyj-pol .howto-steps{margin:0 0 18px;padding-left:22px}
#content .remboo-teplyj-pol .howto-steps li{margin:0 0 10px;padding-left:4px}
#content .remboo-teplyj-pol #formula-title{margin:22px 0 10px;font-size:1.08rem}
#content .remboo-teplyj-pol .formula-card{display:grid;grid-template-columns:minmax(0,1fr);gap:0;border:1.5px solid var(--ink);background:#fff}
/* Формула и подпись под ней в одну колонку: общий слой задаёт две, здесь каждая ячейка на всю ширину */
#content .remboo-teplyj-pol .formula-card>span,#content .remboo-teplyj-pol .formula-card>small{display:flex;align-items:center;grid-column:1/-1;min-width:0;margin:0;padding:16px;border-bottom:1px solid var(--rule);white-space:normal;overflow-wrap:anywhere}
#content .remboo-teplyj-pol .formula-card var{font-style:normal}
/* Неразрывные части длинных формул (подводки, «целые петли из бухты»). Класс удвоен ради
   специфичности: общий слой ставит white-space:normal всем span в карточке */
#content .remboo-teplyj-pol .formula-card .f-part.f-part{white-space:nowrap}
#content .remboo-teplyj-pol .formula-card>span{font-weight:700;font-size:1rem;line-height:1.3;font-variant-numeric:tabular-nums;padding-bottom:4px;border-bottom:0}
#content .remboo-teplyj-pol .formula-card>small{color:var(--muted);font-size:.78rem;padding-top:0}
#content .remboo-teplyj-pol .formula-card>small:last-child{border-bottom:0}
#content .remboo-teplyj-pol .legend{margin-top:14px;border-top:0}
#content .remboo-teplyj-pol .legend>summary{padding:10px 0;color:var(--ink);font-size:.9rem;font-weight:700}
#content .remboo-teplyj-pol .legend>summary::before{content:"+ ";font-weight:400}
#content .remboo-teplyj-pol .legend[open]>summary::before{content:"− "}
#content .remboo-teplyj-pol .legend dl{display:grid;grid-template-columns:auto 1fr;gap:6px 12px;margin:0;font-size:.86rem;line-height:1.4}
#content .remboo-teplyj-pol .legend dt{font-weight:700;font-size:.9rem;line-height:1.4;font-variant-numeric:tabular-nums;white-space:nowrap}
#content .remboo-teplyj-pol .legend dd{margin:0;color:var(--muted)}

/* Справочник */
#content .remboo-teplyj-pol .reference>p:not(.eyebrow),#content .remboo-teplyj-pol .sources>p{max-width:860px}
#content .remboo-teplyj-pol .table-scroll{overflow-x:auto;margin:18px 0;border:1px solid var(--rule)}
#content .remboo-teplyj-pol .reference>.table-scroll{margin:14px 0 22px}
#content .remboo-teplyj-pol table{width:100%;min-width:660px;border-collapse:collapse;background:#fff;font-size:.92rem}
#content .remboo-teplyj-pol caption{padding:14px;text-align:left;color:var(--muted);font-size:.82rem;font-weight:700}
#content .remboo-teplyj-pol th,#content .remboo-teplyj-pol td{padding:12px 14px;border-top:1px solid var(--rule);text-align:left;white-space:nowrap}
#content .remboo-teplyj-pol thead th{background:var(--panel);color:var(--muted);font-size:.78rem;text-transform:uppercase;letter-spacing:.04em}
#content .remboo-teplyj-pol tbody th{font-weight:800}
#content .remboo-teplyj-pol tbody tr:hover{background:var(--panel)}

#content .remboo-teplyj-pol .faq{max-width:900px}
#content .remboo-teplyj-pol .faq details{padding:0}
#content .remboo-teplyj-pol .faq summary{position:relative;padding:17px 42px 17px 0;font-weight:760}
#content .remboo-teplyj-pol .faq summary::after{content:"+";position:absolute;right:8px;top:13px;color:var(--ink);font-size:1.45rem;font-weight:400}
#content .remboo-teplyj-pol .faq details[open] summary::after{content:"−"}
#content .remboo-teplyj-pol .faq details p{max-width:780px;margin:-3px 0 18px;color:var(--muted)}
#content .remboo-teplyj-pol .sources{padding-top:28px;border-top:1.5px solid var(--ink)}
#content .remboo-teplyj-pol .sources ul{padding-left:21px}
#content .remboo-teplyj-pol .sources li{margin:7px 0}
#content .remboo-teplyj-pol .sources a{color:var(--ink);text-underline-offset:2px;overflow-wrap:anywhere;word-break:break-word}

@media (max-width:900px){
  #content .remboo-teplyj-pol .workspace{grid-template-columns:1fr}
  #content .remboo-teplyj-pol aside{position:static}
  #content .remboo-teplyj-pol .explanation{grid-template-columns:1fr}
}
@media (max-width:560px){
  #content .remboo-teplyj-pol .calc-shell{padding:15px}
  #content .remboo-teplyj-pol .field-grid{grid-template-columns:1fr;gap:0}
  #content .remboo-teplyj-pol .top-metrics{grid-template-columns:1fr}
  #content .remboo-teplyj-pol .top-metrics>div{padding:10px 0;border-right:0;border-bottom:1px solid var(--rule)}
  #content .remboo-teplyj-pol .top-metrics>div:last-child{border-bottom:0}
  #content .remboo-teplyj-pol .top-metrics>div+div{padding-left:0}
  #content .remboo-teplyj-pol .top-metrics span{min-height:0}
  #content .remboo-teplyj-pol .details-grid{grid-template-columns:1fr}
  #content .remboo-teplyj-pol .actions{grid-template-columns:1fr}
  #content .remboo-teplyj-pol .result-card{padding:18px 16px}
}