body.fsc-shell{margin:0;min-width:320px;background:#f4f5f7;color:#202939;font-family:Inter,Manrope,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
body.fsc-shell #furnace-size-calculator{width:100%;max-width:none;isolation:isolate}
.fsc-shell .fsc-no-script{padding:3rem;max-width:70ch;margin:auto}
.fsc-shell .fsc-initial{max-width:72ch;margin:3rem auto;padding:1.5rem;line-height:1.65}
.fsc-shell .fsc-initial h1{font-size:clamp(2.2rem,6vw,3.5rem);line-height:1.1;letter-spacing:-.04em}
.fsc-shell .fsc-initial a{color:#244cbc;text-underline-offset:.2em}
.fsc-shell .fsc-method-header,.fsc-shell .fsc-method-footer{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;padding:1.5rem max(1.25rem,calc((100vw - 1120px)/2));background:#fff;border-bottom:1px solid #dde2e8}
.fsc-shell .fsc-method-header a{font-size:1rem;font-weight:700;text-decoration:none;color:#244cbc}
.fsc-shell .fsc-method-content{max-width:850px;margin:3rem auto;padding:0 1.25rem;font-size:1.0625rem;line-height:1.7}
.fsc-shell .fsc-method-content h1{font-size:clamp(2rem,5vw,3.2rem);line-height:1.15;letter-spacing:-.035em}
.fsc-shell .fsc-method-content h2{margin-top:2.4rem;font-size:1.6rem;line-height:1.3}
.fsc-shell .fsc-method-content h3{font-size:1.2rem;line-height:1.4}
.fsc-shell .fsc-method-content a,.fsc-shell .fsc-method-footer a{color:#244cbc;text-decoration:underline;text-underline-offset:.2em}
.fsc-shell .fsc-method-content code{font-size:.94em}
.fsc-shell .fsc-method-content table{border-collapse:collapse;width:100%;font-size:.95rem}
.fsc-shell .fsc-method-content th,.fsc-shell .fsc-method-content td{padding:.7rem;border:1px solid #d6dce4;text-align:left;vertical-align:top}
.fsc-shell .fsc-method-footer{justify-content:flex-start;border-top:1px solid #dde2e8;border-bottom:0;font-size:.95rem}
.fsc-shell .fsc-method-skip{position:absolute;left:1rem;top:-100px;z-index:99999;padding:.8rem;background:#fff;color:#173999}
.fsc-shell .fsc-method-skip:focus{top:1rem}
.fsc-shell :where(.fsc-method-header,.fsc-method-content,.fsc-method-footer,.fsc-no-script) a:focus-visible{outline:3px solid #315dd5;outline-offset:4px}
@media(max-width:600px){.fsc-shell .fsc-method-content{margin:2rem auto}.fsc-shell .fsc-method-header{align-items:flex-start}.fsc-shell .fsc-method-content table{display:block;overflow:auto}}