/* BP-226 «Calculadora de baterías de respaldo» page (store-calculator.mjs). Also supplies the shared first-step cards on the store home.
   Store tokens (--store-*), every rule scoped to .bpc so nothing touches the store's header, cart or toasts. */
.bpc{color:var(--store-ink)}
.bpc .calc[hidden],.bpc [data-calc-fallback][hidden]{display:none}
.bpc [data-calc-fallback]{padding:28px 34px;color:var(--store-muted);line-height:1.6}
.bpc .noimg{display:block;border-radius:10px;background:var(--store-paper)}
.bpc .hero .hd .noimg{width:76px;height:76px}
.bpc .roof-intro{max-width:62ch;margin:0 0 16px;color:#2c3640}
.bpc .install-note{margin:12px 2px 0;line-height:1.5}
.bpc .incl{margin-top:18px;padding-top:14px;border-top:1px solid var(--store-line)}
.bpc .incl .h2{margin-bottom:6px}
.bpc .incl ul{margin:0;padding:0;list-style:none}
.bpc .incl li{display:grid;grid-template-columns:44px minmax(0,1fr) auto;gap:12px;align-items:center;padding:10px 0;border-bottom:1px solid var(--store-line);font-size:.9375rem;line-height:1.3}
.bpc .incl li:last-child{border-bottom:0}
.bpc .incl img,.bpc .incl .noimg{width:44px;height:44px;object-fit:contain;border-radius:8px;background:var(--store-paper)}
.bpc .incl .t{font-weight:600;min-width:0}
.bpc .incl .t small{display:block;font-weight:400;color:var(--store-muted);font-size:.8125rem;margin-top:2px}
.bpc .incl b{font-size:.9375rem;white-space:nowrap}
.bpc .incl li.oos{color:var(--store-muted)}
.bpc .incl li.oos b{color:#9b2c20;font-size:.8125rem}
.bpc a.lnk.pdp{display:inline-block;padding:4px 0 0;font-size:.8125rem;text-decoration:none}
.bpc a.lnk.pdp:hover{text-decoration:underline}
.bpc .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.bpc .contact-actions{display:grid;gap:10px}
.bpc a.btn{text-decoration:none}
.bpc a.btn.sec{color:var(--store-ink)}
.bpc .appcard .btn{white-space:nowrap}
.bpc .store-breadcrumbs{margin-bottom:12px}
.bpc .compare-scroll{overflow-x:auto}
.bpc .faq-section .store-faq{margin-top:4px}
html.calc-sheet-open{overflow:hidden}
.bpc .calc-hero{display:grid;gap:10px;padding:6px 0 26px;max-width:860px}
.bpc .calc-hero h1{margin:0;font-size:clamp(2rem,4.2vw,3rem);line-height:1.05;letter-spacing:-.03em;font-weight:650;text-wrap:balance}
.bpc .calc-hero p{margin:0;color:var(--store-muted);font-size:1.0625rem;line-height:1.55;max-width:62ch}
.bpc .calc-trust{display:flex;flex-wrap:wrap;gap:8px 18px;margin:6px 0 0;padding:0;list-style:none;color:var(--store-ink);font-size:.875rem}
.bpc .calc-trust li{display:flex;gap:7px;align-items:center}
.bpc .calc-trust svg{width:18px;height:18px;color:var(--store-blue);flex:none}
.bpc .calc{border:1px solid var(--store-line);border-radius:18px;background:#fff;box-shadow:0 1px 2px rgba(16,28,42,.04),0 10px 30px rgba(16,28,42,.06);overflow:hidden;scroll-margin-top:90px}
.bpc .calc-shell{display:grid;grid-template-columns:240px minmax(0,1fr);min-height:520px}
.bpc .calc-steps{background:var(--store-paper);border-right:1px solid var(--store-line);padding:22px 16px;display:flex;flex-direction:column;gap:4px}
.bpc .calc-steps h2{margin:0 0 12px 8px;font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:var(--store-muted);font-weight:650}
.bpc .st{display:grid;grid-template-columns:26px minmax(0,1fr);gap:10px;align-items:start;padding:9px 8px;border-radius:10px;border:0;background:none;text-align:left;font:inherit;color:var(--store-muted);cursor:default}
.bpc .st i{width:26px;height:26px;border-radius:13px;display:grid;place-items:center;font-style:normal;font-size:.75rem;font-weight:700;background:#fff;border:1px solid var(--store-line);color:var(--store-muted)}
.bpc .st b{display:block;font-size:.9375rem;font-weight:600;color:inherit;line-height:1.3}
.bpc .st small{display:block;font-size:.8125rem;color:var(--store-muted);margin-top:1px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.bpc .st.done{color:var(--store-ink);cursor:pointer}
.bpc .st.done:hover{background:#fff}
.bpc .st.done i{background:var(--store-blue);border-color:var(--store-blue);color:#fff}
.bpc .st.cur{color:var(--store-ink);background:#fff;box-shadow:0 0 0 1px var(--store-line)}
.bpc .st.cur i{border-color:var(--store-blue);color:var(--store-blue)}
.bpc .calc-steps .aside-note{margin-top:auto;padding:14px 8px 0;font-size:.8125rem;line-height:1.45;color:var(--store-muted)}
.bpc .calc-main{position:relative;padding:28px 34px 30px;display:flex;flex-direction:column;min-width:0}
.bpc .calc-mbar{display:none;align-items:center;gap:10px;margin-bottom:16px;font-size:.8125rem;color:var(--store-muted)}
.bpc .calc-mbar .bar{flex:1;height:5px;border-radius:3px;background:var(--store-line);overflow:hidden}
.bpc .calc-mbar .bar i{display:block;height:100%;background:var(--store-blue)}
.bpc.home-calculator-use .calc-mbar{display:flex}
.bpc.home-calculator-use .q{margin-bottom:20px}
.bpc .q{margin:0 0 6px;font-size:1.625rem;line-height:1.15;letter-spacing:-.02em;font-weight:650;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.bpc .qs{margin:0 0 20px;color:var(--store-muted);font-size:.9375rem;line-height:1.5;max-width:60ch}
.bpc .c-body{flex:1}
.bpc .c-foot{display:flex;gap:12px;align-items:center;justify-content:space-between;margin-top:24px;padding-top:18px;border-top:1px solid var(--store-line)}
.bpc .c-foot .sum{font-weight:650;font-size:1rem}
.bpc .c-foot .sum small{display:block;font-weight:400;color:var(--store-muted);font-size:.8125rem}
.bpc .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 22px;border-radius:10px;border:0;background:var(--store-blue);color:#fff;font:600 1rem/1 Geist,system-ui,sans-serif;cursor:pointer;text-decoration:none}
.bpc .btn:hover{background:var(--store-blue-hover)}
.bpc .btn:disabled{opacity:.45;cursor:default}
.bpc .btn.sec{background:#fff;color:var(--store-ink);box-shadow:inset 0 0 0 1px var(--store-line)}
.bpc .btn.sec:hover{box-shadow:inset 0 0 0 1px var(--store-muted)}
.bpc .btn.wide{width:100%}
.bpc .lnk{border:0;background:none;padding:6px 0;color:var(--store-blue);font:600 .9375rem Geist,system-ui,sans-serif;cursor:pointer;text-align:left}
.bpc .lnk:hover{text-decoration:underline}
.bpc .back{border:0;background:none;color:var(--store-muted);font:500 .875rem Geist,system-ui,sans-serif;cursor:pointer;padding:0;margin-bottom:14px;display:inline-flex;gap:6px;align-items:center}
.bpc .back:hover{color:var(--store-ink)}
.bpc .tiles{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.bpc .tile{display:flex;flex-direction:column;align-items:flex-start;gap:10px;padding:18px 16px;border:1px solid var(--store-line);border-radius:14px;background:#fff;cursor:pointer;text-align:left;font:inherit;color:inherit;min-height:132px;text-decoration:none}
.bpc .tile:hover{border-color:var(--store-blue);box-shadow:0 0 0 1px var(--store-blue)}
.bpc .tile .em{font-size:1.75rem}
.bpc .tile b{font-size:1rem}
.bpc .tile small{color:var(--store-muted);font-size:.8125rem;line-height:1.35}
.bpc .opts{display:grid;gap:10px;max-width:640px}
.bpc .opt{display:grid;grid-template-columns:40px minmax(0,1fr) auto;gap:12px;align-items:center;padding:14px 16px;border:1px solid var(--store-line);border-radius:12px;background:#fff;cursor:pointer;text-align:left;font:inherit;color:inherit}
.bpc .opt:hover{border-color:var(--store-blue)}
.bpc .opt.sel{border-color:var(--store-blue);box-shadow:0 0 0 1px var(--store-blue);background:#f4f9ff}
.bpc .opt .em{font-size:1.5rem;text-align:center}
.bpc .opt b{display:block;font-size:1rem}
.bpc .opt small{display:block;color:var(--store-muted);font-size:.8125rem;margin-top:2px;line-height:1.35}
.bpc .tag{display:inline-block;margin-top:5px;padding:2px 8px;border-radius:999px;background:#e8f1fb;color:var(--store-blue);font-size:.6875rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase}
.bpc .chev{color:var(--store-muted);font-size:1.25rem}
.bpc .i{width:22px;height:22px;border-radius:11px;border:1px solid var(--store-line);background:#fff;color:var(--store-muted);font:700 .75rem Georgia,serif;cursor:pointer;display:inline-grid;place-items:center;vertical-align:middle;flex:none}
.bpc .i:hover{border-color:var(--store-blue);color:var(--store-blue)}
.bpc .seg{display:inline-flex;flex-wrap:wrap;gap:6px;padding:4px;border-radius:12px;background:var(--store-paper)}
.bpc .seg button{min-height:40px;padding:0 16px;border:0;border-radius:9px;background:none;font:500 .9375rem Geist,system-ui,sans-serif;color:var(--store-ink);cursor:pointer}
.bpc .seg button.on{background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.08),0 0 0 1px var(--store-line);font-weight:650}
.bpc .lb{margin:20px 0 8px;font-size:.875rem;font-weight:650;display:flex;gap:8px;align-items:center}
.bpc .loads{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 14px}
.bpc .load{display:grid;grid-template-columns:30px minmax(0,1fr) auto auto;gap:10px;align-items:center;padding:10px 12px;border:1px solid var(--store-line);border-radius:12px}
.bpc .load.off{opacity:.55}
.bpc .load .em{font-size:1.25rem;text-align:center}
.bpc .load .n{font-size:.9375rem;line-height:1.25}
.bpc .hrs{min-width:52px;min-height:34px;border-radius:8px;border:1px solid var(--store-line);background:#fff;font:600 .8125rem Geist,system-ui,sans-serif;cursor:pointer;color:var(--store-ink)}
.bpc .hrs:hover{border-color:var(--store-blue)}
.bpc .qty{display:inline-flex;align-items:center;gap:2px}
.bpc .qty button{width:32px;height:32px;border-radius:16px;border:1px solid var(--store-line);background:#fff;font-size:1rem;cursor:pointer;color:var(--store-ink)}
.bpc .qty b{min-width:22px;text-align:center;font-size:.9375rem}
.bpc .add{margin-top:12px;border:1px dashed var(--store-line);border-radius:12px;background:#fff;padding:12px 16px;width:100%;text-align:left;font:600 .9375rem Geist,system-ui,sans-serif;color:var(--store-blue);cursor:pointer}
.bpc .add:hover{border-color:var(--store-blue)}
.bpc .appcard{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:14px;align-items:center;margin-top:18px;padding:14px 16px;border-radius:12px;background:var(--store-paper);font-size:.875rem;line-height:1.45}
.bpc .appcard b{display:block;font-size:.9375rem}
.bpc .appcard .em{font-size:1.5rem}
.bpc .alert{padding:12px 14px;border-radius:10px;background:#fdf3e3;color:#6b3a06;font-size:.875rem;line-height:1.45;margin:12px 0}
.bpc .live{margin-top:14px;padding:11px 14px;border-radius:10px;background:#fff8e1;font-size:.9375rem;display:flex;gap:8px;align-items:center}
.bpc .step{display:inline-flex;align-items:center;gap:6px;margin:4px 12px 4px 0}
.bpc .step button{width:38px;height:38px;border-radius:19px;border:1px solid var(--store-line);background:#fff;font-size:1.125rem;cursor:pointer}
.bpc .step b{min-width:76px;text-align:center;font-size:1.125rem}
.bpc .step b small{display:block;font-size:.75rem;color:var(--store-muted);font-weight:500}
.bpc .brands{display:flex;gap:10px;margin:4px 0 16px;flex-wrap:wrap}
.bpc .bt{display:grid;grid-template-columns:auto auto;gap:2px 14px;align-items:center;padding:10px 14px;border:1px solid var(--store-line);border-radius:12px;background:#fff;cursor:pointer;font:inherit;color:inherit;text-align:left;min-width:180px}
.bpc .bt.on{border-color:var(--store-blue);box-shadow:0 0 0 1px var(--store-blue)}
.bpc .bt span{font-weight:650}
.bpc .bt b{justify-self:end;font-size:.9375rem}
.bpc .bt em{grid-column:1/-1;font-style:normal;font-size:.75rem;font-weight:650}
.bpc .bt em.g{color:#0b6b45}
.bpc .bt em.r{color:#a4340f}
.bpc .bt em.y{color:#8a4b08}
.bpc .res{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:22px;align-items:start}
.bpc .hero{border:1px solid var(--store-line);border-radius:16px;padding:18px;background:#fff}
.bpc .hero.portable-short{background:#f6f7f9;margin-bottom:16px}
.bpc .hero.robust{border:2px solid var(--store-blue)}
.bpc .comparison-head{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.bpc .comparison-eyebrow{font-size:.75rem;font-weight:700;letter-spacing:.06em;color:var(--store-muted)}
.bpc .robust .comparison-eyebrow{color:var(--store-blue)}
.bpc .comparison-pill{font-size:.75rem;font-weight:700;padding:4px 10px;border-radius:999px;line-height:1.4}
.bpc .short-pill{color:#a3480d;background:#fdeee3}
.bpc .cover-pill{color:#1f7a45;background:#e5f4ea}
.bpc .portable-short .hd{grid-template-columns:64px minmax(0,1fr)}
.bpc .portable-short .hd img,.bpc .portable-short .hd .noimg{width:64px;height:64px}
.bpc .portable-short .nm{font-size:1rem;line-height:1.3}
.bpc .portable-price{font-size:1rem;margin-top:4px;font-variant-numeric:tabular-nums}
.bpc .short-track{height:6px;border-radius:3px;background:var(--store-line);overflow:hidden;margin-top:16px}
.bpc .short-track i{display:block;height:100%;border-radius:3px;background:#c5662c}
.bpc .portable-short p{margin:8px 0 4px}
.bpc .portable-link{display:inline-flex;align-items:center;min-height:44px;font-size:.875rem;text-decoration:none}
.bpc .portable-link:hover{text-decoration:underline}
.bpc .calc-financing{font-size:.875rem;line-height:1.5;margin:-6px 0 14px;letter-spacing:0;font-weight:400}
.bpc .calc-financing p{margin:0}
.bpc .upgrade-why{border-top:1px solid var(--store-line);margin-top:16px;padding-top:8px;font-size:.9375rem}
.bpc .upgrade-why summary{cursor:pointer;font-weight:600;padding:10px 0}
.bpc .upgrade-why ul{margin:4px 0 0;padding-left:20px;color:var(--store-muted);font-size:.875rem;line-height:1.5}
.bpc .upgrade-why li+li{margin-top:8px}
.bpc .hero .hd{display:grid;grid-template-columns:76px minmax(0,1fr);gap:14px;align-items:center}
.bpc .hero .hd img{width:76px;height:76px;object-fit:contain;border-radius:10px;background:var(--store-paper)}
.bpc .hero .nm{font-size:1.25rem;font-weight:650;line-height:1.2}
.bpc .hero .sub,.bpc .sub{color:var(--store-muted);font-size:.8125rem;line-height:1.4}
.bpc .cover{margin:14px 0 4px;color:#0b6b45;font-weight:650;font-size:1rem}
.bpc .cover.y{color:#8a4b08}
.bpc .price{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;margin:14px 0 12px;font-size:1.75rem;font-weight:700;letter-spacing:-.02em}
.bpc .price small{font-size:.8125rem;font-weight:500;color:var(--store-muted);letter-spacing:0}
.bpc .ch{margin-top:12px;border-radius:12px;background:var(--store-paper);padding:12px}
.bpc .chhd{display:flex;flex-wrap:wrap;gap:2px 10px;justify-content:space-between;font-size:.8125rem;font-weight:650;margin-bottom:8px}
.bpc .chhd em{font-style:normal;color:#0b6b45}
.bpc .chbody{display:grid;grid-template-columns:34px minmax(0,1fr);gap:6px}
.bpc .chax{display:flex;flex-direction:column;justify-content:space-between;font-size:.6875rem;color:var(--store-muted);height:110px;text-align:right}
.bpc .chart{position:relative;height:110px;display:flex;align-items:flex-end;gap:1px;border-bottom:1px solid #c8d0d8}
.bpc .chart i{flex:1;height:100%;display:flex;align-items:flex-end;border-radius:2px 2px 0 0}
.bpc .chart i b{display:block;width:100%;border-radius:2px 2px 0 0}
.bpc .chart u{position:absolute;top:0;bottom:0;border-left:1px dashed #b9c3cd}
.bpc .chd{display:flex;margin-left:40px;font-size:.6875rem;color:var(--store-muted)}
.bpc .chd span{flex:1;text-align:center}
.bpc .chft{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-top:6px;font-size:.6875rem;color:var(--store-muted)}
.bpc .chft .lg{display:inline-block;width:10px;height:10px;border-radius:2px;margin:0 4px -1px 8px;border:1px solid #d8dee4}
.bpc .h2{margin:0 0 10px;font-size:.8125rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--store-muted)}
.bpc .rows{border:1px solid var(--store-line);border-radius:14px;overflow:hidden;margin-bottom:18px}
.bpc .row{display:grid;grid-template-columns:28px minmax(0,1fr) auto auto;gap:10px;align-items:center;width:100%;padding:13px 14px;border:0;border-bottom:1px solid var(--store-line);background:#fff;font:inherit;color:inherit;text-align:left;cursor:pointer}
.bpc .row:last-child{border-bottom:0}
.bpc .row:hover{background:#fafbfc}
.bpc .row:disabled{cursor:default;opacity:.6}
.bpc .row .t{font-weight:600;font-size:.9375rem}
.bpc .row .v{color:var(--store-muted);font-size:.875rem;text-align:right}
.bpc .row .em{text-align:center}
.bpc .sw{width:46px;height:28px;border-radius:14px;border:0;background:#cdd5dd;position:relative;cursor:pointer;flex:none}
.bpc .sw::after{content:"";position:absolute;top:3px;left:3px;width:22px;height:22px;border-radius:11px;background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.2);transition:left .15s}
.bpc .sw.on{background:var(--store-blue)}
.bpc .sw.on::after{left:21px}
.bpc .alts{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:10px;margin-bottom:18px}
.bpc .alt{display:flex;flex-direction:column;gap:3px;padding:12px 14px;border:1px solid var(--store-line);border-radius:12px;background:#fff;text-align:left;font:inherit;color:inherit;cursor:pointer}
.bpc button.alt:hover{border-color:var(--store-blue)}
.bpc .alt small{font-size:.6875rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--store-blue)}
.bpc .alt b{font-size:.9375rem;line-height:1.3}
.bpc .alt i{font-style:normal;font-weight:700;margin-top:4px}
.bpc .alt i.g{color:var(--store-blue)}
.bpc .cbox{display:grid;grid-template-columns:auto minmax(0,1fr);gap:4px 14px;align-items:center;padding:14px 16px;border-radius:14px;background:#eef5fc}
.bpc .cbox .em{grid-row:span 2;font-size:1.5rem}
.bpc .cbox b{font-size:.9375rem}
.bpc .cbox .sub{color:#36506b}
.bpc .cbox .lnk{grid-column:2;padding:2px 0}
.bpc .bars{display:grid;gap:10px;margin:12px 0}
.bpc .barr span{display:flex;justify-content:space-between;font-size:.8125rem;margin-bottom:4px}
.bpc .barr i{display:block;height:12px;border-radius:6px}
.bpc .barr i.u{background:#d9822b}
.bpc .barr i.h{background:var(--store-blue)}
.bpc .field{display:flex;align-items:center;gap:6px;border:1px solid var(--store-line);border-radius:10px;padding:0 12px;min-height:44px;background:#fff}
.bpc .field input{flex:1;border:0;outline:0;font:inherit;font-size:.9375rem;min-width:0;background:none}
.bpc .field:focus-within{border-color:var(--store-blue);box-shadow:0 0 0 1px var(--store-blue)}
.bpc .note{font-size:.875rem;line-height:1.5;padding:6px 0}
.bpc .dlg-bg{position:fixed;inset:0;z-index:80;background:rgba(16,28,42,.45);display:flex;align-items:center;justify-content:center;padding:20px}
.bpc .dlg{width:min(520px,100%);max-height:min(86vh,720px);background:#fff;border-radius:16px;display:flex;flex-direction:column;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.bpc .dlg-h{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:16px 18px;border-bottom:1px solid var(--store-line)}
.bpc .dlg-h b{font-size:1.0625rem}
.bpc .x{width:34px;height:34px;border-radius:17px;border:0;background:var(--store-paper);cursor:pointer;font-size:1rem}
.bpc .dlg-b{padding:14px 18px 18px;overflow:auto}
.bpc .calc-content{display:grid;gap:44px;padding:52px 0 64px}
.bpc .cc-sec h2{margin:0 0 14px;font-size:1.75rem;letter-spacing:-.02em;line-height:1.15;font-weight:650}
.bpc .cc-sec>p{margin:0 0 12px;max-width:72ch;color:#2c3640;line-height:1.65}
.bpc .howgrid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:6px}
.bpc .howgrid div{padding:18px;border-radius:14px;background:var(--store-paper)}
.bpc .howgrid b{display:block;margin:8px 0 4px;font-size:1rem}
.bpc .howgrid p{margin:0;color:var(--store-muted);font-size:.875rem;line-height:1.5}
.bpc .howgrid span{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:14px;background:var(--store-blue);color:#fff;font-weight:700;font-size:.8125rem}
.bpc .assume{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 28px;margin:6px 0 0;padding:0;list-style:none}
.bpc .assume li{padding:12px 0;border-bottom:1px solid var(--store-line);font-size:.9375rem;line-height:1.5}
.bpc .assume b{display:block}
.bpc .compare{width:100%;border-collapse:collapse;font-size:.9375rem;margin-top:6px}
.bpc .compare th,.bpc .compare td{padding:12px 10px;border-bottom:1px solid var(--store-line);text-align:left;vertical-align:top;line-height:1.45}
.bpc .compare th{font-size:.8125rem;text-transform:uppercase;letter-spacing:.05em;color:var(--store-muted)}
.bpc .compare tbody th{font-size:.9375rem;text-transform:none;letter-spacing:0;color:var(--store-ink);font-weight:650;width:22%}
.bpc .faq{border-top:1px solid var(--store-line)}
.bpc .faq details{border-bottom:1px solid var(--store-line)}
.bpc .faq summary{list-style:none;cursor:pointer;padding:18px 0;font-weight:650;font-size:1.0625rem;display:flex;justify-content:space-between;gap:16px}
.bpc .faq summary::-webkit-details-marker{display:none}
.bpc .faq summary::after{content:"+";font-weight:400;font-size:1.375rem;color:var(--store-muted)}
.bpc .faq details[open] summary::after{content:"−"}
.bpc .faq details p{margin:0 0 18px;max-width:74ch;color:#2c3640;line-height:1.65}
.bpc .srcs{margin:0;padding-left:18px;color:var(--store-muted);font-size:.875rem;line-height:1.7}
.bpc .srcs a{color:var(--store-blue)}
.bpc .related{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.bpc .related a{display:block;padding:16px;border:1px solid var(--store-line);border-radius:14px;color:inherit;text-decoration:none}
.bpc .related a:hover{border-color:var(--store-blue)}
.bpc .related b{display:block;margin-bottom:4px}
.bpc .related span{color:var(--store-muted);font-size:.875rem}
@media (max-width:1023px){
.bpc .calc-shell{grid-template-columns:1fr}
.bpc .calc-steps{display:none}
.bpc .calc-mbar{display:flex}
.bpc .res{grid-template-columns:1fr}
.bpc .tiles{grid-template-columns:repeat(2,minmax(0,1fr))}
.bpc .howgrid{grid-template-columns:repeat(2,minmax(0,1fr))}
.bpc .related{grid-template-columns:1fr}
}
@media (max-width:640px){
.bpc .calc-main{padding:20px 16px 22px}
.bpc .loads{grid-template-columns:1fr}
.bpc .assume{grid-template-columns:1fr}
.bpc .howgrid{grid-template-columns:1fr}
.bpc .q{font-size:1.375rem}
.bpc .dlg-bg{align-items:flex-end;padding:0}
.bpc .dlg{width:100%;border-radius:16px 16px 0 0;max-height:88vh}
.bpc .c-foot{flex-direction:column;align-items:stretch}
.bpc .c-foot .btn{width:100%}
.bpc .tile{min-height:112px;padding:14px}
.bpc .bt{min-width:0;flex:1}
.bpc .calc{border-radius:14px}
.bpc .compare{font-size:.875rem}
}
@media (max-width:640px){
.bpc .brands{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
.bpc .bt{grid-template-columns:1fr;min-width:0;padding:10px 12px;gap:2px}
.bpc .bt b{justify-self:start}
.bpc .hero .hd{grid-template-columns:60px minmax(0,1fr)}
.bpc .hero .hd img{width:60px;height:60px}
.bpc .hero .nm{font-size:1.125rem}
.bpc .calc-hero h1{font-size:2rem}
}
@media (prefers-reduced-motion:reduce){
.bpc .sw::after{transition:none}
}
@media (max-width:640px){.bpc .appcard{grid-template-columns:auto minmax(0,1fr)}.bpc .appcard .btn{grid-column:1/-1}}

/* BP-226: catalog brands share rows at phone widths; long names stay within their tab. */
.bpc .brands{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,160px),1fr))}
.bpc .brands .bt{min-width:0;overflow-wrap:anywhere}
.bpc .brands .bt>*{min-width:0}