/* Зернистость наждачной бумаги — мир темы «Чертёж»: белый лист, чернильные линии,
   жёлтый маркер только у главного. Общий слой _shared/rb-calc.css задаёт плитки,
   справку, буквы формул; здесь — раскладка, три метрики результата, таблицы с фильтром. */
#content .remboo-nazhdachka{
  --ink:#111;--muted:#5A5A56;--line:#E8E8E5;--line-ink:#111;--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-nazhdachka *{box-sizing:border-box}
#content .remboo-nazhdachka [hidden]{display:none!important}
#content .remboo-nazhdachka .calc-shell{max-width:1180px;margin:0 auto;padding:clamp(16px,3vw,42px);background:var(--paper)}
#content .remboo-nazhdachka .calc-intro{max-width:760px;margin:0 0 28px}
#content .remboo-nazhdachka .eyebrow{margin:0 0 6px;color:var(--ink);font-size:.78rem;font-weight:800;letter-spacing:.11em;text-transform:uppercase}
#content .remboo-nazhdachka .calculator-title,#content .remboo-nazhdachka h2,#content .remboo-nazhdachka h3{color:var(--ink);font-weight:760;letter-spacing:-.025em}
#content .remboo-nazhdachka .calculator-title{margin:0 0 8px;font-size:clamp(2rem,5vw,3.6rem);line-height:1.04}
#content .remboo-nazhdachka h2{margin:0 0 16px;font-size:clamp(1.55rem,3vw,2.25rem);line-height:1.15}
#content .remboo-nazhdachka h3{margin:0;font-size:1.08rem;line-height:1.25}
#content .remboo-nazhdachka p{margin:0 0 14px}
#content .remboo-nazhdachka .calc-intro>p:last-child{color:var(--muted);font-size:1.08rem}
#content .remboo-nazhdachka .workspace{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(380px,.98fr);gap:24px;align-items:start}
#content .remboo-nazhdachka form{min-width:0;padding:0;border:0;background:transparent}
#content .remboo-nazhdachka .section-title{display:flex;align-items:center;gap:12px;margin:4px 0 16px;padding-top:20px;border-top:1px solid var(--line)}
#content .remboo-nazhdachka .section-title:first-child{padding-top:0;border-top:0}
#content .remboo-nazhdachka label{display:block;margin:0 0 15px;color:var(--ink);font-size:.93rem;font-weight:700}
#content .remboo-nazhdachka input,#content .remboo-nazhdachka select,#content .remboo-nazhdachka button{font:inherit}
#content .remboo-nazhdachka input,#content .remboo-nazhdachka 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-nazhdachka input:focus,#content .remboo-nazhdachka select:focus,#content .remboo-nazhdachka button:focus-visible,#content .remboo-nazhdachka summary:focus-visible,#content .remboo-nazhdachka .table-scroll:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-color:var(--ink)}
#content .remboo-nazhdachka input[aria-invalid="true"]{border-color:var(--danger)}
#content .remboo-nazhdachka small,#content .remboo-nazhdachka .hint{display:block;margin-top:5px;color:var(--muted);font-size:.84rem;font-weight:400;line-height:1.45}
#content .remboo-nazhdachka .field-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
#content .remboo-nazhdachka fieldset{margin:0;padding:0;border:0}
#content .remboo-nazhdachka .mode-block{margin-top:4px}

/* Результат: белая карточка, чернильная рамка, три метрики */
#content .remboo-nazhdachka aside{position:sticky;top:18px;min-width:0}
#content .remboo-nazhdachka .result-card{overflow:visible;border:1.5px solid var(--line-ink);border-radius:0;background:var(--paper);color:var(--ink);padding:22px 24px}
#content .remboo-nazhdachka .result-card>.eyebrow{padding:0}
#content .remboo-nazhdachka #calc-error{margin:0 0 20px;padding:0 0 0 14px;border-left:4px solid var(--warn);color:var(--danger);font-weight:700}
#content .remboo-nazhdachka #calc-output{padding:0}
#content .remboo-nazhdachka .primary-result{display:flex;flex-direction:column;padding:2px 0 18px}
#content .remboo-nazhdachka .primary-result strong{font-size:clamp(2.1rem,6vw,3.6rem);line-height:1.05;letter-spacing:-.045em}
#content .remboo-nazhdachka .primary-result span{margin-top:4px;color:var(--muted);font-size:.86rem}
#content .remboo-nazhdachka .top-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;border-top:1.5px solid var(--line-ink);border-bottom:1px solid var(--line)}
#content .remboo-nazhdachka .top-metrics>div{min-width:0;padding:12px 12px 12px 0;border-right:1px solid var(--line)}
#content .remboo-nazhdachka .top-metrics>div:last-child{border-right:0}
#content .remboo-nazhdachka .top-metrics>div+div{padding-left:12px}
#content .remboo-nazhdachka .top-metrics span,#content .remboo-nazhdachka .top-metrics strong,#content .remboo-nazhdachka .top-metrics em{display:block}
#content .remboo-nazhdachka .top-metrics span{min-height:2.5em;color:var(--muted);font-size:.76rem;line-height:1.25}
#content .remboo-calculator.remboo-nazhdachka .result-card .top-metrics>div>strong{margin-top:4px;font-size:1rem;white-space:normal;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}
#content .remboo-nazhdachka .top-metrics em{margin-top:3px;color:var(--muted);font-size:.72rem;font-style:normal;line-height:1.3}
#content .remboo-nazhdachka .direct-answer{margin:18px 0 0;padding:0;border:0;background:transparent;color:var(--ink);font-weight:500}
#content .remboo-nazhdachka .warnings{margin-top:14px;padding:4px 0 4px 14px;border-left:4px solid var(--warn);color:var(--ink);font-size:.86rem}
#content .remboo-nazhdachka .warnings p{margin:0 0 8px}#content .remboo-nazhdachka .warnings p:last-child{margin-bottom:0}
#content .remboo-nazhdachka .actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:20px;padding:0;background:transparent}
#content .remboo-nazhdachka button{min-height:46px;padding:10px 14px;border:1.5px solid var(--ink);border-radius:0;background:transparent;color:var(--ink);font-weight:750;cursor:pointer}
#content .remboo-nazhdachka button:disabled{opacity:.45;cursor:not-allowed}
#content .remboo-nazhdachka #share-status{min-height:0;margin:8px 0 0;padding:0;color:var(--muted);font-size:.8rem}
#content .remboo-nazhdachka #share-link{width:100%;margin:8px 0 0}
#content .remboo-nazhdachka .noscript{margin:18px 0;padding:14px;border:1px solid var(--line)}

/* Объяснение, пример, формулы, легенда */
#content .remboo-nazhdachka section{margin-top:clamp(42px,7vw,82px)}
#content .remboo-nazhdachka .explanation{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(300px,.8fr);gap:28px;align-items:start;padding:clamp(24px,4vw,42px) 0;border-top:1.5px solid var(--line-ink);background:transparent}
#content .remboo-nazhdachka .explanation h3{margin:18px 0 10px;font-size:1rem}
#content .remboo-nazhdachka .howto-steps{margin:0 0 18px;padding-left:22px}
#content .remboo-nazhdachka .howto-steps li{margin:0 0 10px;padding-left:4px}
#content .remboo-nazhdachka .formula-card{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:0;overflow:visible;border:1.5px solid var(--line-ink);border-radius:0;background:#fff}
#content .remboo-nazhdachka .formula-card span,#content .remboo-nazhdachka .formula-card small{display:flex;align-items:center;min-width:0;margin:0;padding:14px 16px;border-bottom:1px solid var(--line);white-space:normal;overflow-wrap:anywhere}
#content .remboo-nazhdachka .formula-card span{font-size:.92rem;font-weight:700;line-height:1.3;font-variant-numeric:tabular-nums}
#content .remboo-nazhdachka .formula-card small{color:var(--muted);font-size:.78rem}
#content .remboo-nazhdachka .formula-card span:nth-last-of-type(1),#content .remboo-nazhdachka .formula-card small:last-child{border-bottom:0}
#content .remboo-nazhdachka .legend{margin:14px 0 0;padding:0 0 4px;border-top:1px solid var(--line)}
#content .remboo-nazhdachka .legend>summary{position:relative;padding:12px 36px 12px 0;font-weight:760;color:var(--ink);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;cursor:pointer;list-style:none}
#content .remboo-nazhdachka .legend>summary::-webkit-details-marker{display:none}
#content .remboo-nazhdachka .legend>summary::after{content:"+";position:absolute;right:8px;top:7px;color:var(--ink);font-size:1.45rem;font-weight:400}
#content .remboo-nazhdachka .legend[open]>summary::after{content:"−"}
#content .remboo-nazhdachka .legend dl{margin:0 0 8px;display:grid;gap:6px}
#content .remboo-nazhdachka .legend dl>div{display:grid;grid-template-columns:minmax(52px,auto) 1fr;gap:10px;align-items:baseline}
#content .remboo-nazhdachka .legend dt{margin:0;font-size:.95rem;font-weight:800;line-height:1.3}
#content .remboo-nazhdachka .legend dd{margin:0;color:var(--muted);font-size:.9rem;line-height:1.4}

/* Справочник: таблицы с фильтром, FAQ, источники */
#content .remboo-nazhdachka .reference>p:not(.eyebrow),#content .remboo-nazhdachka .sources>p{max-width:860px}
#content .remboo-nazhdachka .table-filter{max-width:420px;margin:14px 0 6px}
#content .remboo-nazhdachka .table-scroll{overflow-x:auto;margin:10px 0 18px;border:1px solid var(--line)}
#content .remboo-nazhdachka table{width:100%;min-width:520px;border-collapse:collapse;background:#fff;font-size:.92rem}
#content .remboo-nazhdachka th,#content .remboo-nazhdachka td{padding:11px 14px;border-top:1px solid var(--line);text-align:left;white-space:nowrap}
#content .remboo-nazhdachka thead th{background:transparent;border-bottom:1.5px solid var(--line-ink);color:var(--muted);font-size:.78rem;text-transform:uppercase;letter-spacing:.04em}
#content .remboo-nazhdachka tbody th{font-weight:800}
#content .remboo-nazhdachka tbody tr:hover{background:var(--panel)}
#content .remboo-nazhdachka .norm-table{margin:0;border-top:1px solid var(--line)}
#content .remboo-nazhdachka .norm-table>summary{display:flex;flex-wrap:wrap;gap:6px 12px;align-items:baseline;padding:16px 36px 16px 0;position:relative;font-weight:760;cursor:pointer;list-style:none}
#content .remboo-nazhdachka .norm-table>summary::-webkit-details-marker{display:none}
#content .remboo-nazhdachka .norm-table>summary span{color:var(--muted);font-size:.84rem;font-weight:500}
#content .remboo-nazhdachka .norm-table>summary::after{content:"+";position:absolute;right:8px;top:11px;color:var(--ink);font-size:1.45rem;font-weight:400}
#content .remboo-nazhdachka .norm-table[open]>summary::after{content:"−"}
#content .remboo-nazhdachka .norm-table .hint{margin:0 0 6px}
#content .remboo-nazhdachka .faq{max-width:900px}
#content .remboo-nazhdachka .faq details{padding:0;border-top:1px solid var(--line)}
#content .remboo-nazhdachka .faq summary{position:relative;padding:17px 42px 17px 0;font-weight:760;cursor:pointer;list-style:none}
#content .remboo-nazhdachka .faq summary::-webkit-details-marker{display:none}
#content .remboo-nazhdachka .faq summary::after{content:"+";position:absolute;right:8px;top:13px;color:var(--ink);font-size:1.45rem;font-weight:400}
#content .remboo-nazhdachka .faq details[open] summary::after{content:"−"}
#content .remboo-nazhdachka .faq details p{max-width:780px;margin:-3px 0 18px;color:var(--muted)}
#content .remboo-nazhdachka .sources{padding-top:28px;border-top:2px solid var(--ink)}
#content .remboo-nazhdachka .assumptions{margin:0 0 16px;padding-left:1.2em;font-size:.92rem;line-height:1.5}
#content .remboo-nazhdachka .assumptions li{margin-bottom:6px}
#content .remboo-nazhdachka .sources ul{padding-left:21px}
#content .remboo-nazhdachka .sources li{margin:7px 0}
#content .remboo-nazhdachka .sources a{color:var(--ink);text-underline-offset:2px;overflow-wrap:anywhere;word-break:break-word}
@media (max-width:900px){
  #content .remboo-nazhdachka .workspace{grid-template-columns:1fr}
  #content .remboo-nazhdachka aside{position:static}
  #content .remboo-nazhdachka .explanation{grid-template-columns:1fr}
}
@media (max-width:560px){
  #content .remboo-nazhdachka .calc-shell{padding:16px}
  #content .remboo-nazhdachka .field-grid{grid-template-columns:minmax(0,1fr);gap:0}
  #content .remboo-nazhdachka .top-metrics{grid-template-columns:1fr}
  #content .remboo-nazhdachka .top-metrics>div{padding:12px 0;border-right:0;border-bottom:1px solid var(--line)}
  #content .remboo-nazhdachka .top-metrics>div:last-child{border-bottom:0}
  #content .remboo-nazhdachka .top-metrics>div+div{padding-left:0}
  #content .remboo-nazhdachka .top-metrics span{min-height:0}
  #content .remboo-nazhdachka .actions{grid-template-columns:1fr}
  #content .remboo-nazhdachka .explanation{padding:20px 0}
  #content .remboo-nazhdachka .formula-card{grid-template-columns:1fr}
}