/* Калькулятор балки на прогиб — свои стили поверх общего слоя rb-calc.css.
   Мир темы: белый лист, чернила #111, серая шкала, жёлтый только как маркер, оранжевый — предупреждения. */
#content .remboo-balka{
  --ink:#111;--muted:#5A5A56;--line:#E8E8E5;--line-strong:#111;--paper:#fff;--warn:#FF5A1F;--warn-deep:#B23A0C;--mark:#FFD500;
  clear:both;width:100%;color:var(--ink);font:400 16px/1.55 system-ui,-apple-system,"Segoe UI",sans-serif;
}
#content .remboo-balka *{box-sizing:border-box}
#content .remboo-balka [hidden]{display:none!important}
#content .remboo-balka .calc-shell{max-width:1180px;margin:0 auto;padding:clamp(18px,3vw,42px);background:var(--paper)}
#content .remboo-balka .calc-intro{max-width:760px;margin:0 0 28px}
#content .remboo-balka .eyebrow{margin:0 0 6px;color:var(--ink);font-size:.78rem;font-weight:800;letter-spacing:.11em;text-transform:uppercase}
#content .remboo-balka .calculator-title,#content .remboo-balka h2,#content .remboo-balka h3{color:var(--ink);font-weight:760;letter-spacing:-.025em}
#content .remboo-balka .calculator-title{margin:0 0 8px;font-size:clamp(2rem,5vw,3.6rem);line-height:1.04}
#content .remboo-balka h2{margin:0 0 16px;font-size:clamp(1.55rem,3vw,2.25rem);line-height:1.15}
#content .remboo-balka h3{margin:0;font-size:1.08rem;line-height:1.25}
#content .remboo-balka p{margin:0 0 14px}
#content .remboo-balka .calc-intro>p:last-child{color:var(--muted);font-size:1.08rem}
#content .remboo-balka .workspace{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(360px,.92fr);gap:24px;align-items:start}
#content .remboo-balka form{min-width:0;padding:24px;border:1.5px solid var(--line-strong);border-radius:0;background:var(--paper);box-shadow:none}
#content .remboo-balka .section-title{display:flex;align-items:center;gap:12px;margin:4px 0 16px;padding-top:20px;border-top:1px solid var(--line)}
#content .remboo-balka .section-title:first-child{padding-top:0;border-top:0}
#content .remboo-balka label{display:block;margin:0 0 15px;color:var(--ink);font-size:.93rem;font-weight:700}
#content .remboo-balka input,#content .remboo-balka select,#content .remboo-balka button{font:inherit}
#content .remboo-balka input,#content .remboo-balka select{width:100%;min-height:48px;margin-top:6px;padding:10px 12px;border:1.5px solid var(--ink);border-radius:0;background:var(--paper);color:var(--ink);font-size:1rem;box-shadow:none}
#content .remboo-balka input:focus,#content .remboo-balka select:focus,#content .remboo-balka button:focus-visible,#content .remboo-balka summary:focus-visible,#content .remboo-balka .table-scroll:focus-visible{outline:3px solid var(--mark);outline-offset:2px}
#content .remboo-balka input[aria-invalid="true"]{border-color:var(--warn-deep);box-shadow:0 0 0 3px rgba(255,90,31,.25)}
#content .remboo-balka input:disabled,#content .remboo-balka select:disabled{color:var(--muted);border-color:var(--line)}
#content .remboo-balka small,#content .remboo-balka .hint{display:block;margin-top:5px;color:var(--muted);font-size:.84rem;font-weight:400;line-height:1.45}
#content .remboo-balka .field-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
#content .remboo-balka .field-grid>label{min-width:0}
#content .remboo-balka .optional{margin-left:6px;color:var(--muted);font-size:.78rem;font-weight:500}
#content .remboo-balka form>.hint,#content .remboo-balka form .hint{margin:-6px 0 14px}
#content .remboo-balka .check{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin:4px 0 14px;font-weight:650;cursor:pointer}
#content .remboo-balka .check input{width:22px;height:22px;min-height:0;margin:0;accent-color:var(--ink);appearance:auto;flex:none}
#content .remboo-balka details{border-top:1px solid var(--line)}
#content .remboo-balka details summary{cursor:pointer;list-style:none}
#content .remboo-balka details summary::-webkit-details-marker{display:none}
#content .remboo-balka .cost-fields{margin-top:18px;padding-top:15px}
#content .remboo-balka .cost-fields>summary{display:flex;flex-wrap:wrap;gap:4px 12px;align-items:baseline;font-weight:800}
#content .remboo-balka .cost-fields>summary::after{content:"＋";margin-left:auto;color:var(--ink)}
#content .remboo-balka .cost-fields[open]>summary::after{content:"−"}
#content .remboo-balka .cost-fields>summary span{color:var(--muted);font-size:.8rem;font-weight:500}
#content .remboo-balka .cost-fields>label{margin-top:12px}
#content .remboo-balka aside{position:sticky;top:18px;min-width:0}
#content .remboo-balka .result-card{overflow:hidden;border:1.5px solid var(--ink);border-radius:0;background:var(--paper);color:var(--ink);box-shadow:none}
#content .remboo-balka .result-card>.eyebrow{padding:0;color:var(--ink)}
#content .remboo-balka #calc-error{margin:0 0 20px;padding:10px 12px;border-left:4px solid var(--warn);background:transparent;color:var(--ink);font-weight:700}
#content .remboo-balka #calc-output{padding:0} /* поля карточки даёт общий слой (.result-card 22/24 px, на телефоне 18/16): свои не дублировать */
/* Главная фраза — слова, не цифра: маркер под каждой строкой текста, а не под всей строкой карточки (прожарка 16.09, P2-1) */
#content .remboo-balka .primary-result{display:block;padding:2px 0 18px}
body.rb-calc-page #content .remboo-balka .primary-result strong{display:inline;width:auto;max-width:none;font-size:clamp(1.9rem,4.2vw,2.9rem);line-height:1.2;letter-spacing:-.03em;padding:0 .06em;-webkit-box-decoration-break:clone;box-decoration-break:clone}
#content .remboo-balka .primary-result span{display:block;margin-top:6px;color:var(--muted);font-size:.86rem}
#content .remboo-balka .top-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:0 16px;border-top:1.5px solid var(--ink)}
#content .remboo-balka .top-metrics>div{padding:11px 0;border-bottom:1px solid var(--line)}
#content .remboo-balka .top-metrics span,#content .remboo-balka .top-metrics strong{display:block}
#content .remboo-balka .top-metrics span{min-height:2.5em;color:var(--muted);font-size:.76rem;line-height:1.25}
#content .remboo-balka .top-metrics strong{margin-top:4px;font-size:1rem}
#content .remboo-balka .direct-answer{margin:18px 0;padding:0 0 0 12px;border-left:4px solid var(--mark);background:transparent;color:var(--ink);font-weight:500}
#content .remboo-balka .terms{margin:-8px 0 14px;color:var(--muted);font-size:.78rem;line-height:1.45}
#content .remboo-balka .next-section{margin:0 0 14px;padding:8px 0 8px 12px;border-left:4px solid var(--mark);color:var(--ink);font-size:.86rem;font-weight:650}
#content .remboo-balka .details-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 16px;margin-bottom:16px}
#content .remboo-balka .details-grid>div{min-width:0;padding:10px 0;border-top:1px solid var(--line)}
#content .remboo-balka .details-grid span,#content .remboo-balka .details-grid strong,#content .remboo-balka .details-grid em{display:block;margin:0}
#content .remboo-balka .details-grid span{color:var(--muted);font-size:.76rem}
#content .remboo-balka .details-grid strong{margin-top:2px;font-size:1.12rem}
#content .remboo-balka .details-grid em{color:var(--muted);font-size:.78rem;font-style:normal;line-height:1.35}
/* Две проверки — строки с точкой-вердиктом: чернильная точка «OK», оранжевая — «НЕТ» */
#content .remboo-balka .checks-block{display:grid;gap:0;margin-top:16px;border-top:1.5px solid var(--ink)}
#content .remboo-balka .check-row{display:grid;grid-template-columns:auto 1fr auto;align-items:baseline;gap:10px;padding:9px 0;border-bottom:1px solid var(--line);font-size:.84rem}
#content .remboo-balka .check-row .check-dot{width:10px;height:10px;border-radius:50%;align-self:center;border:1.5px solid var(--ink);background:transparent}
#content .remboo-balka .check-row.ok .check-dot{background:var(--ink)}
#content .remboo-balka .check-row.fail .check-dot{border-color:var(--warn);background:var(--warn)}
#content .remboo-balka .check-row .check-label{color:var(--ink);font-weight:600}
#content .remboo-balka .check-row .check-value{color:var(--ink);font-weight:700;white-space:nowrap;font-variant-numeric:tabular-nums}
#content .remboo-balka .check-row.fail .check-value{color:var(--warn-deep)}
#content .remboo-balka .check-row .check-reserve{display:block;margin-top:2px;color:var(--muted);font-size:.74rem;font-weight:500}
#content .remboo-balka #auto-table .table-scroll{margin:14px 0 0}
#content .remboo-balka #auto-table table{min-width:0;font-size:.84rem}
#content .remboo-balka #auto-table th,#content .remboo-balka #auto-table td{padding:8px 10px}
#content .remboo-balka .warnings{margin-top:14px;padding:10px 12px;border-left:4px solid var(--warn);background:transparent;color:var(--ink);font-size:.8rem}
#content .remboo-balka .warnings p{margin:0 0 8px}#content .remboo-balka .warnings p:last-child{margin-bottom:0}
#content .remboo-balka .actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:20px;padding:16px 0 0;border-top:1px solid var(--line);background:transparent}
#content .remboo-balka button{min-height:46px;padding:10px 14px;border:1.5px solid var(--ink);border-radius:0;background:var(--paper);color:var(--ink);font-weight:750;cursor:pointer}
#content .remboo-balka button:hover{background:#FFF3B0}
#content .remboo-balka button:disabled{opacity:.45;cursor:not-allowed}
#content .remboo-balka #share-status{min-height:0;margin:8px 0 0;padding:0;color:var(--muted);font-size:.8rem}
#content .remboo-balka #share-link{width:100%;margin:8px 0 0}
#content .remboo-balka .article-link{display:flex;justify-content:space-between;margin-top:10px;padding:14px 16px;border:1px solid var(--line);border-radius:0;color:var(--ink)!important;font-weight:750;text-decoration:none!important}
#content .remboo-balka .article-link:hover{border-color:var(--ink)}
#content .remboo-balka .noscript{margin:18px 0;padding:14px;border-left:4px solid var(--warn);background:transparent}
#content .remboo-balka section{margin-top:clamp(42px,7vw,82px)}
#content .remboo-balka .explanation{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(280px,.75fr);gap:28px;align-items:start;padding:clamp(24px,4vw,42px) 0 0;border-top:1.5px solid var(--ink);border-radius:0;background:transparent}
#content .remboo-balka .howto-steps{margin:0 0 18px;padding-left:22px}
#content .remboo-balka .howto-steps li{margin:0 0 10px;padding-left:4px}
#content .remboo-balka .howto-steps b{font-weight:800}
#content .remboo-balka .steps-title{margin:22px 0 10px;font-size:1.15rem}
#content .remboo-balka .formula-column{min-width:0}
/* Формула и подпись под ней в одну колонку — узкая колонка не рвёт «(384·E·I)» */
#content .remboo-balka .formula-card{display:block;overflow:visible;border:0;border-top:1.5px solid var(--ink);border-radius:0;background:transparent;box-shadow:none}
#content .remboo-balka .formula-card>span,#content .remboo-balka .formula-card>small{display:block;margin:0;padding:0;border:0}
#content .remboo-balka .formula-card>span{padding:12px 0 2px;font:700 1rem/1.4 ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--ink)}
#content .remboo-balka .formula-card>small{padding:0 0 12px;border-bottom:1px solid var(--line);color:var(--muted);font-size:.78rem}
#content .remboo-balka .formula-card var{font-style:normal}
#content .remboo-balka .formula-card sub{font-size:.7em}
#content .remboo-balka .legend{margin:14px 0 0;padding:0 0 4px;border-top:1px solid var(--line)}
#content .remboo-balka .legend>summary{padding:12px 0;font-weight:760;color:var(--ink);cursor:pointer;list-style:none}
#content .remboo-balka .legend>summary::-webkit-details-marker{display:none}
#content .remboo-balka .legend>summary::after{content:"＋";float:right;color:var(--ink);font-weight:400}
#content .remboo-balka .legend[open]>summary::after{content:"−"}
#content .remboo-balka .legend dl{margin:0 0 8px;display:grid;gap:6px}
#content .remboo-balka .legend dl>div{display:grid;grid-template-columns:minmax(52px,auto) 1fr;gap:10px;align-items:baseline}
#content .remboo-balka .legend dt{margin:0;font:800 .95rem/1.3 ui-monospace,SFMono-Regular,Menlo,monospace}
#content .remboo-balka .legend dd{margin:0;color:var(--muted);font-size:.9rem;line-height:1.4}
#content .remboo-balka .reference>p:not(.eyebrow),#content .remboo-balka .sources>p{max-width:860px}
#content .remboo-balka .table-scroll{overflow-x:auto;margin:14px 0 22px;border:1px solid var(--line);border-radius:0}
#content .remboo-balka table{width:100%;min-width:560px;border-collapse:collapse;background:var(--paper);font-size:.92rem}
#content .remboo-balka caption{padding:14px;text-align:left;color:var(--muted);font-size:.82rem;font-weight:700}
#content .remboo-balka th,#content .remboo-balka td{padding:11px 14px;border-top:1px solid var(--line);text-align:left;white-space:nowrap;overflow-wrap:normal;hyphens:manual}
#content .remboo-balka thead th{background:transparent;border-bottom:1.5px solid var(--ink);color:var(--ink);font-size:.78rem;text-transform:uppercase;letter-spacing:.04em}
#content .remboo-balka tbody th{font-weight:800}
#content .remboo-balka tbody tr:hover{background:#FFF3B0}
#content .remboo-balka tbody tr.hit{background:#FFF3B0}
#content .remboo-balka .table-search{display:block;max-width:520px;margin:18px 0 6px;font-weight:700}
#content .remboo-balka .table-search input{margin-top:6px}
#content .remboo-balka .faq{max-width:900px}
#content .remboo-balka .faq details{padding:0;border-top:1px solid var(--line)}
#content .remboo-balka .faq summary{position:relative;padding:17px 42px 17px 0;font-weight:760;cursor:pointer;list-style:none}
#content .remboo-balka .faq summary::-webkit-details-marker{display:none}
#content .remboo-balka .faq summary::after{content:"+";position:absolute;right:8px;top:13px;color:var(--ink);font-size:1.45rem;font-weight:400}
#content .remboo-balka .faq details[open] summary::after{content:"−"}
#content .remboo-balka .faq details p{max-width:780px;margin:-3px 0 18px;color:var(--muted)}
#content .remboo-balka .sources{padding-top:28px;border-top:1.5px solid var(--ink)}
#content .remboo-balka .sources ul{padding-left:21px}
#content .remboo-balka .sources li{margin:7px 0}
#content .remboo-balka .sources a{color:var(--ink);text-underline-offset:2px;overflow-wrap:anywhere;word-break:break-word}
@media (max-width:900px){
  #content .remboo-balka .workspace{grid-template-columns:1fr}
  #content .remboo-balka aside{position:static}
  #content .remboo-balka .explanation{grid-template-columns:1fr}
}
@media (max-width:560px){
  #content .remboo-balka .calc-shell{padding:15px}
  #content .remboo-balka form{padding:17px}
  #content .remboo-balka .field-grid{grid-template-columns:1fr;gap:0}
  #content .remboo-balka .top-metrics{grid-template-columns:1fr}
  #content .remboo-balka .top-metrics span{min-height:0}
  #content .remboo-balka .details-grid{grid-template-columns:1fr}
  #content .remboo-balka .actions{grid-template-columns:1fr}
  #content .remboo-balka .explanation{padding:20px 0 0}
  #content .remboo-balka .legend dl>div{grid-template-columns:1fr;gap:2px}
  #content .remboo-balka .formula-card>span{white-space:normal;overflow-wrap:anywhere}
  #content .remboo-balka .check-row{grid-template-columns:auto 1fr;gap:6px 10px}
  #content .remboo-balka .check-row .check-value{grid-column:2;white-space:normal}
}
/* Липкая полоска общего слоя: главный ответ здесь словами, на 320 не влезает в одну строку */
@media (max-width:360px){
  body.rb-calc-page #content .remboo-balka .rb-sticky strong{font-size:1rem}
}
/* Печатный лист (общий rb-print.mjs клонирует карточку результата; блок проверок знает только эта страница) */
@media print{
  #rb-print .checks-block{margin:2mm 0;border-top:1.5px solid #111}
  #rb-print .check-row{display:grid;grid-template-columns:auto 1fr auto;align-items:baseline;gap:0 3mm;padding:1mm 0;border-bottom:1px solid #D9D9D6;font-size:9pt;break-inside:avoid}
  #rb-print .check-row .check-dot{width:2.2mm;height:2.2mm;border-radius:50%;align-self:center;border:.4mm solid #111;background:#fff}
  #rb-print .check-row.ok .check-dot{background:#111}
  #rb-print .check-row .check-label{font-weight:600}
  #rb-print .check-row .check-value{font-weight:700;white-space:nowrap;font-variant-numeric:tabular-nums}
  #rb-print .check-row .check-reserve{display:block;color:#5A5A56;font-size:8pt;font-weight:400}
  #rb-print .terms{font-size:8.5pt;color:#5A5A56}
}