/* Изолированное оформление калькулятора Бренд Свет. */
#bs-beam{--bc-blue:#2967a8;--bc-ink:#253949;--bc-muted:#556b7d;--bc-line:#d8e4ee;max-width:1180px;margin:auto;font:16px/1.65 Arial,Helvetica,sans-serif;color:var(--bc-ink)}
#bs-beam *,#bs-beam *::before,#bs-beam *::after{box-sizing:border-box}
#bs-beam [hidden]{display:none!important}
#bs-beam a{color:var(--bc-blue);text-underline-offset:3px;overflow-wrap:anywhere}
#bs-beam :is(a,button,input,select,summary,textarea):focus-visible{outline:3px solid #bf8928;outline-offset:3px}
#bs-beam :is(h2,h3){color:var(--bc-ink);font-family:inherit;line-height:1.3;letter-spacing:normal;text-transform:none;font-weight:700;border:0;padding:0}
#bs-beam h2{font-size:27px;margin:0 0 17px}#bs-beam h3{font-size:19px;margin:0 0 12px}#bs-beam p{margin:0 0 16px}#bs-beam p:last-child{margin-bottom:0}
#bs-beam .bc-kicker{font-size:11px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--bc-blue);margin:0 0 13px}
#bs-beam .bc-hero{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(210px,1fr);gap:35px;padding:32px;margin:12px 0 16px;border:1px solid #cbdeee;border-radius:14px;background:linear-gradient(115deg,#edf5fc,#fbfdff)}
#bs-beam .bc-hero h2{font-size:35px;letter-spacing:-.7px;max-width:670px;margin-bottom:18px}#bs-beam .bc-hero p:not(.bc-kicker){font-size:15px;color:#4b6378}#bs-beam .bc-hero aside{padding:22px;align-self:center;background:#fff;border:1px solid var(--bc-line);border-radius:10px}#bs-beam .bc-hero aside strong{display:block;font-size:17px;line-height:1.4;margin-bottom:11px}#bs-beam .bc-hero aside p{font-size:13px}
#bs-beam .bc-nav{display:flex;flex-wrap:wrap;gap:5px 26px;font-size:13px;margin-bottom:16px}#bs-beam .bc-nav a{display:inline-flex;align-items:center;min-height:40px;font-weight:600}
#bs-beam .bc-calculator{display:grid;grid-template-columns:minmax(260px,350px) minmax(0,1fr);gap:24px;align-items:start;scroll-margin-top:100px}#bs-beam .bc-controls{padding:24px;background:#f6f9fc;border:1px solid var(--bc-line);border-radius:12px;min-width:0;margin:0}#bs-beam .bc-results{min-width:0}
#bs-beam .bc-label{display:block;font-size:13px;line-height:1.4;font-weight:600;margin:18px 0 8px}#bs-beam .bc-controls>.bc-label:first-of-type{margin-top:0}#bs-beam input:not([type=range]),#bs-beam select,#bs-beam textarea{display:block;width:100%;max-width:100%;min-height:44px;padding:9px 11px;font:15px/1.4 Arial,Helvetica,sans-serif;color:var(--bc-ink);background:#fff;border:1px solid #b8ccdc;border-radius:7px;box-shadow:none;margin:0}#bs-beam select{padding-right:25px}#bs-beam input:disabled{background:#e8edf2;color:#647889}#bs-beam .bc-help{font-size:11px;line-height:1.55;color:var(--bc-muted);margin:8px 0 12px}#bs-beam .bc-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}#bs-beam .bc-pair label{min-height:37px}#bs-beam .bc-angle-row{display:grid;grid-template-columns:minmax(0,1fr) 76px;gap:14px;align-items:center}#bs-beam input[type=range]{appearance:auto;-webkit-appearance:auto;accent-color:var(--bc-blue);width:100%;height:26px;margin:0;padding:0;background:transparent;border:0;box-shadow:none;cursor:pointer}
#bs-beam .bc-chips{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0 13px}#bs-beam .bc-chips button{appearance:none;border:1px solid #c2d6e6;background:#fff;border-radius:6px;padding:7px 9px;font:11px/1.4 Arial,Helvetica,sans-serif;min-height:34px;cursor:pointer;color:var(--bc-blue);box-shadow:none;text-shadow:none}#bs-beam .bc-chips button:hover{background:#e5eff9}
#bs-beam .bc-options{border-top:1px solid var(--bc-line);margin-top:20px;padding-top:13px}#bs-beam .bc-options summary{font-size:13px;font-weight:600;line-height:1.45;cursor:pointer;padding:7px 0}#bs-beam .bc-options>div{padding-top:3px}
#bs-beam .bc-button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:11px 18px;border:1px solid var(--bc-blue);border-radius:7px;background:var(--bc-blue);font:700 14px/1.5 Arial,Helvetica,sans-serif;color:#fff;text-decoration:none;cursor:pointer;box-shadow:none;text-shadow:none;white-space:normal;text-align:center}#bs-beam .bc-button:hover{background:#194d82;color:#fff}#bs-beam .bc-control-actions{display:flex;gap:14px;align-items:center;margin-top:24px}#bs-beam .bc-reset{border:0;padding:7px 0;background:transparent;color:var(--bc-blue);font:13px/1.5 Arial,Helvetica,sans-serif;text-decoration:underline;cursor:pointer;box-shadow:none;text-shadow:none}
#bs-beam .bc-result-head{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;align-items:center;margin:0 0 14px}#bs-beam .bc-result-head .bc-kicker{margin:0}#bs-beam .bc-result-head>span{font-size:12px;color:var(--bc-muted)}#bs-beam .bc-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}#bs-beam .bc-metrics article{padding:16px 12px;border:1px solid #cddfeb;border-radius:9px;background:#f0f6fc;min-width:0}#bs-beam .bc-metrics span{display:block;font-size:11px;line-height:1.4;min-height:32px;color:#4b647a}#bs-beam .bc-metrics strong{display:block;font-size:25px;line-height:1.3;letter-spacing:-.5px;margin:7px 0;overflow-wrap:anywhere}#bs-beam .bc-metrics small{display:block;font-size:10px;line-height:1.4;color:var(--bc-muted)}
#bs-beam .bc-view{margin-top:18px;border:1px solid var(--bc-line);border-radius:10px;overflow:hidden;background:#fff}#bs-beam .bc-view-head{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:13px 17px}#bs-beam .bc-view h3{font-size:15px;margin:0}#bs-beam .bc-view-head span{font-size:11px;color:var(--bc-muted)}#bs-beam .bc-view svg,#bs-beam .bc-view canvas{width:100%;height:auto;display:block;max-width:100%}#bs-beam .bc-map-note{padding:12px 16px;font-size:11px;color:var(--bc-muted);line-height:1.5}#bs-beam .bc-model-note{font-size:12px;line-height:1.6;color:var(--bc-muted);margin:17px 0}#bs-beam .bc-two-results{padding:16px 19px;background:#f2f7fb;border:1px solid var(--bc-line);border-radius:9px;margin-top:17px;font-size:13px}#bs-beam .bc-two-results p{margin:0 0 9px}#bs-beam .bc-two-results small{font-size:11px;color:var(--bc-muted)}#bs-beam .bc-error{padding:20px;border:1px solid #cf9989;background:#fff6f2;border-radius:9px;color:#843b25;font-size:14px}
#bs-beam .bc-export{display:flex;gap:15px;flex-wrap:wrap;align-items:center;margin-top:15px}#bs-beam .bc-export button{padding:10px 15px;min-height:42px;border:1px solid #bdd0e1;border-radius:7px;color:var(--bc-blue);background:#fff;font:600 13px/1.5 Arial,Helvetica,sans-serif;cursor:pointer;text-shadow:none;box-shadow:none}#bs-beam .bc-export span{font-size:12px;color:var(--bc-muted)}#bs-beam textarea{margin-top:14px;min-height:180px;font-size:12px}#bs-beam .bc-sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
#bs-beam .bc-section{margin-top:38px;padding-top:33px;border-top:1px solid var(--bc-line);scroll-margin-top:100px}#bs-beam .bc-section>p:not(.bc-kicker){font-size:15px;color:#496277;max-width:900px}#bs-beam .bc-products{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:19px;margin-top:25px}#bs-beam .bc-product{display:flex;flex-direction:column;min-width:0;border:1px solid var(--bc-line);border-radius:11px;padding:22px;background:#fff}#bs-beam .bc-product>a:first-child{display:flex;align-items:center;justify-content:center;height:165px;margin-bottom:19px}#bs-beam .bc-product img{display:block;max-height:165px;max-width:100%;width:100%;height:100%;object-fit:contain}#bs-beam .bc-product h3{font-size:19px;margin-bottom:12px}#bs-beam .bc-product p{font-size:13px;color:#536c7e}#bs-beam .bc-product .bc-button{margin-top:auto;width:100%}#bs-beam .bc-product .bc-product-link{margin-top:12px;font-size:12px;text-align:center}
#bs-beam .bc-explain-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:25px 0}#bs-beam .bc-explain-grid article{padding:23px;border:1px solid var(--bc-line);border-radius:9px}#bs-beam .bc-explain-grid p{font-size:14px;color:#50687a}#bs-beam .bc-details{border:1px solid var(--bc-line);border-radius:8px;margin:13px 0;background:#fff}#bs-beam .bc-details summary{font-size:15px;line-height:1.5;font-weight:600;padding:17px 21px;cursor:pointer}#bs-beam .bc-details>div{padding:0 21px 21px;font-size:14px;color:#496276}
#bs-beam .bc-cta{display:flex;justify-content:space-between;align-items:center;gap:25px;padding:29px;margin-top:36px;background:#eff5fc;border:1px solid #cbddeb;border-radius:12px}#bs-beam .bc-cta>div{max-width:690px}#bs-beam .bc-cta h2{font-size:25px}#bs-beam .bc-cta p{font-size:14px;color:#496276}#bs-beam .bc-cta>a{flex:none;max-width:260px}#bs-beam .bc-related{display:flex;flex-wrap:wrap;gap:10px 23px;margin-top:22px;font-size:13px}
@media(max-width:1000px){#bs-beam .bc-calculator{grid-template-columns:minmax(250px,300px) minmax(0,1fr);gap:18px}#bs-beam .bc-controls{padding:20px}#bs-beam .bc-metrics{gap:7px}#bs-beam .bc-metrics strong{font-size:21px}#bs-beam .bc-metrics article{padding:13px 9px}#bs-beam .bc-hero{padding:27px;gap:24px}#bs-beam .bc-hero h2{font-size:31px}}
@media(max-width:820px){#bs-beam .bc-calculator{grid-template-columns:1fr}#bs-beam .bc-hero{grid-template-columns:1fr}#bs-beam .bc-hero aside{padding:18px}#bs-beam .bc-metrics strong{font-size:28px}#bs-beam .bc-products{grid-template-columns:1fr}#bs-beam .bc-product{display:grid;grid-template-columns:130px minmax(0,1fr);gap:0 24px}#bs-beam .bc-product>a:first-child{grid-row:1/5;height:150px;margin:0}#bs-beam .bc-product img{max-height:150px}#bs-beam .bc-product .bc-product-link{grid-column:2}#bs-beam .bc-cta{display:block}#bs-beam .bc-cta>a{margin-top:20px;max-width:none}}
@media(max-width:540px){#bs-beam{font-size:15px}#bs-beam h2{font-size:24px}#bs-beam .bc-hero{padding:25px 21px}#bs-beam .bc-hero h2{font-size:28px}#bs-beam .bc-controls{padding:22px}#bs-beam .bc-metrics strong{font-size:23px}#bs-beam .bc-metrics article{padding:14px 10px}#bs-beam .bc-metrics span{font-size:10px}#bs-beam .bc-explain-grid{grid-template-columns:1fr}#bs-beam .bc-product{grid-template-columns:95px minmax(0,1fr);padding:20px;gap:0 16px}#bs-beam .bc-product h3{font-size:17px}#bs-beam .bc-product p{font-size:12px}#bs-beam .bc-product .bc-button{font-size:12px;padding:10px}#bs-beam .bc-section{padding-top:28px;margin-top:29px}#bs-beam .bc-cta{padding:24px 21px}#bs-beam .bc-view-head{padding:12px 14px}#bs-beam .bc-view h3{font-size:14px}}
@media(max-width:360px){#bs-beam .bc-metrics strong{font-size:19px}#bs-beam .bc-product{display:flex}#bs-beam .bc-product>a:first-child{height:140px;margin-bottom:15px}#bs-beam .bc-pair{grid-template-columns:1fr}#bs-beam .bc-pair label{min-height:0}}

@media(max-width:540px){#bs-beam .bc-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}#bs-beam .bc-metrics article:last-child{grid-column:1/-1}#bs-beam .bc-metrics span{font-size:12px;min-height:0}#bs-beam .bc-metrics small{font-size:11px}#bs-beam .bc-metrics strong{font-size:25px}#bs-beam #bc-side text{font-size:21px}}

#bs-beam.bc-linear .bc-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
#bs-beam .bc-product .bc-stock{font-size:11px;line-height:1.5;color:#466875;background:#f0f7f5;padding:9px 10px;border-radius:5px;margin-bottom:15px}
@media(max-width:540px){#bs-beam.bc-linear .bc-metrics article:last-child{grid-column:auto}}

/* v3: расстановка, сантиметры и пояснение широкого пучка. */
#bs-beam input:disabled{background:#edf1f5;color:#8a98a4;cursor:not-allowed;opacity:1}
#bs-beam .bc-wide-help{border-left:3px solid #b49a64;padding-left:12px;margin-top:13px}
#bs-beam .bc-wide-note{margin:18px 0 0;padding:15px 18px;background:#fff8e9;border:1px solid #e5d5ac;border-radius:9px;font-size:13px;color:#665531}
#bs-beam .bc-wide-note strong{display:block;margin-bottom:4px}
#bs-beam .bc-two-results h3{font-size:17px;margin:0 0 10px}
#bs-beam .bc-products .bc-product p{overflow-wrap:anywhere}
#bs-beam #bc-preset-note{min-height:36px}

/* v4: интерактивная карта и объёмная комната */
#bs-beam .bc-map-toolbar{display:flex;align-items:center;flex-wrap:wrap;gap:9px;padding:0 16px 13px;font-size:12px}
#bs-beam .bc-map-toolbar select{width:auto;max-width:100%;min-height:36px;padding:7px 25px 7px 9px;font-size:12px}
#bs-beam .bc-check{display:flex;align-items:center;gap:6px;cursor:pointer}
#bs-beam .bc-check input{width:16px;height:16px;min-height:0;margin:0;padding:0;accent-color:#2967a8}
#bs-beam .bc-map-stage{position:relative}
#bs-beam #bc-map{cursor:crosshair;touch-action:pan-y}
#bs-beam #bc-map:focus-visible{outline:3px solid #348ed5;outline-offset:-3px}
#bs-beam .bc-map-tooltip{position:absolute;pointer-events:none;padding:7px 11px;background:#fff;color:#203f59;font:bold 15px/1.3 Arial,sans-serif;border-radius:6px;box-shadow:0 3px 16px #0003;z-index:1;white-space:nowrap}
#bs-beam .bc-probe-panel{display:flex;justify-content:space-between;align-items:center;gap:15px;padding:16px;background:#eff6fc;border-bottom:1px solid #d8e4ee}
#bs-beam .bc-probe-panel span,#bs-beam .bc-probe-panel small{display:block;font-size:11px;color:#516b80;line-height:1.5}
#bs-beam .bc-probe-panel strong{display:block;font-size:28px;line-height:1.4;color:#234a6b}
#bs-beam .bc-probe-panel button{background:#fff;color:#2967a8;border:1px solid #bfd1e0;border-radius:6px;padding:9px 12px;font:600 12px/1.4 Arial,sans-serif;cursor:pointer;box-shadow:none;text-shadow:none;min-height:38px}
#bs-beam .bc-map-legend{display:flex;align-items:center;gap:9px;padding:13px 16px 0;font-size:11px;color:#466075}
#bs-beam .bc-map-legend>div{flex:1;height:9px;border-radius:9px}
#bs-beam .bc-map-note+.bc-map-note{padding-top:0}
















@media(max-width:540px){#bs-beam .bc-probe-panel{gap:10px}#bs-beam .bc-probe-panel button{max-width:102px}#bs-beam .bc-map-toolbar{gap:8px}#bs-beam .bc-map-toolbar>label:first-child{display:none}}
#bs-beam .bc-map-view .bc-map-note{margin:0;padding-top:10px;padding-bottom:10px}


/* Readable illuminance reference tables. */


#bs-beam .bc-norm-nav{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0}
#bs-beam .bc-norm-nav a{border:1px solid #c9daea;border-radius:20px;background:#f6f9fc;padding:7px 15px;font-size:13px;text-decoration:none}
#bs-beam .bc-norm-group{margin:24px 0;scroll-margin-top:100px}
#bs-beam .bc-norm-group h3{margin:0 0 5px;font-size:21px}
#bs-beam .bc-table-source{font-size:12px;color:#61778a;margin:0 0 12px}
#bs-beam .bc-norms table{border-collapse:separate;border-spacing:0;width:100%;table-layout:fixed;border:1px solid #d6e2ec;border-radius:10px;overflow:hidden;font-size:14px;line-height:1.5}
#bs-beam .bc-norms th,#bs-beam .bc-norms td{padding:12px 16px;border:0;border-bottom:1px solid #e1eaf1;text-align:left;vertical-align:middle;overflow-wrap:anywhere}
#bs-beam .bc-norms thead th{background:#eaf2f9;color:#2b526f;font-size:12px;font-weight:700}
#bs-beam .bc-norms thead th:first-child{width:50%}
#bs-beam .bc-norms thead th:nth-child(2){width:19%}
#bs-beam .bc-norms tbody th{font-weight:400;color:#324f65}
#bs-beam .bc-norms tbody td strong{color:#23629c;font-size:17px}
#bs-beam .bc-norms tbody td:last-child{font-size:13px;color:#596e80}
#bs-beam .bc-norms tbody tr:nth-child(even){background:#f7fafc}
#bs-beam .bc-norms tbody tr:last-child>*{border-bottom:0}
#bs-beam .bc-table-note{font-size:12px;line-height:1.6;color:#526b7e;margin:10px 0 0;max-width:980px}
#bs-beam .bc-norm-summary{background:#f0f6fb;border:1px solid #d6e3ee;border-radius:11px;padding:25px 28px;margin-top:27px;font-size:14px}
#bs-beam .bc-norm-summary h3{font-size:20px}
#bs-beam .bc-norm-summary ol{padding-left:21px;margin:15px 0}
#bs-beam .bc-norm-summary li{margin:12px 0;padding-left:3px}
#bs-beam .bc-norms>.bc-norm-date{font-size:12px;margin-top:16px;color:#677c8e}
@media(max-width:540px){#bs-beam .bc-norms th,#bs-beam .bc-norms td{padding:10px 8px;font-size:12px}#bs-beam .bc-norms thead th{font-size:10px}#bs-beam .bc-norms thead th:first-child{width:46%}#bs-beam .bc-norms thead th:nth-child(2){width:22%}#bs-beam .bc-norms tbody td:last-child{font-size:11px}#bs-beam .bc-norms tbody td strong{font-size:15px}#bs-beam .bc-norm-summary{padding:19px 17px}#bs-beam .bc-norm-group h3{font-size:19px}}

#bs-beam .bc-plane-explanation{padding:16px 19px;border-left:3px solid #2e70a8;background:#f1f7fb;border-radius:0 8px 8px 0}
#bs-beam .bc-norms thead th:nth-child(2){width:23%}
#bs-beam .bc-norms thead th:first-child{width:41%}
@media(max-width:540px){#bs-beam .bc-norms thead th:first-child{width:34%}#bs-beam .bc-norms thead th:nth-child(2){width:28%}#bs-beam .bc-norms thead th{overflow-wrap:normal}#bs-beam .bc-norms tbody td:last-child{line-height:1.6}}
@media(max-width:540px){
#bs-beam .bc-norms table,#bs-beam .bc-norms tbody{display:block}
#bs-beam .bc-norms thead{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
#bs-beam .bc-norms tbody tr{display:grid;grid-template-columns:minmax(0,1fr) 106px;padding:12px 13px;gap:8px 12px;border-bottom:1px solid #d6e2ec}
#bs-beam .bc-norms tbody tr:last-child{border-bottom:0}
#bs-beam .bc-norms tbody th,#bs-beam .bc-norms tbody td{display:block;padding:0;border:0;overflow-wrap:normal;font-size:13px}
#bs-beam .bc-norms tbody td:nth-child(2)::before{content:'Минимальная норма, лк';display:block;font-size:10px;line-height:1.35;color:#61778a;margin-bottom:4px}
#bs-beam .bc-norms tbody td:nth-child(2) strong{font-size:20px}
#bs-beam .bc-norms tbody td:last-child{grid-column:1/-1;border-top:1px solid #e1eaf1;padding-top:7px;font-size:12px}
#bs-beam .bc-norms tbody td:last-child::before{content:'Где измерять: ';font-weight:600;color:#496277}
}

/* Larger coordinate readout with explicit display axes. */
#bs-beam .bc-probe-panel>div{min-width:0}
#bs-beam #bc-probe-coordinates{display:grid;gap:6px;margin-top:10px}
#bs-beam #bc-probe-x,#bs-beam #bc-probe-y{display:block;font-size:18px;font-weight:600;line-height:1.5;color:#234a6b;font-variant-numeric:tabular-nums}
#bs-beam #bc-probe-level{font-size:13px;line-height:1.5;color:#516b80}
@media(max-width:640px){#bs-beam .bc-probe-panel{flex-direction:column;align-items:flex-start;gap:14px}#bs-beam .bc-probe-panel button{max-width:none}#bs-beam #bc-probe-x,#bs-beam #bc-probe-y{font-size:17px}}