.tws-hvac-desk{--hl-accent:#b5cad6;--hl-panel:#14242c;--hl-inset:#1a313c;--hl-line:#48636e;--hl-text:#f1eee4;--hl-muted:#c6d1d5;--hl-warm:#d5bc97;--hl-people:#bad4c5;--hl-other:#8ea6a8}
.tws-hvac-desk main,.tws-hvac-desk main *{box-sizing:border-box;min-width:0}.tws-hvac-desk main [hidden]{display:none!important}.tws-hvac-desk main{color:var(--hl-text)}.tws-hvac-desk main .wrap{max-width:1100px;width:100%;margin:0 auto;padding-left:clamp(18px,3vw,32px);padding-right:clamp(18px,3vw,32px)}
.tws-hvac-desk main :is(h1,h2,h3){color:var(--hl-text);font-weight:400;text-transform:none;letter-spacing:-.035em;border:0;background:none;text-shadow:none}.tws-hvac-desk main :is(h1,h2,h3)::before,.tws-hvac-desk main :is(h1,h2,h3)::after{display:none!important}.tws-hvac-desk main h2{font-size:clamp(27px,3.2vw,37px);line-height:1.15;margin:8px 0 16px}.tws-hvac-desk main h3{font-size:23px;line-height:1.2;margin:0 0 15px}.tws-hvac-desk main :is(p,li){color:var(--hl-muted)}.tws-hvac-desk main a{color:var(--hl-accent);text-underline-offset:4px}.tws-hvac-desk main :is(a,button,input,textarea,summary):focus-visible{outline:3px solid #ead0a5;outline-offset:4px}.tws-hvac-desk main .eyebrow,.tws-hvac-desk .hl-kicker{font:700 10px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;text-transform:uppercase;letter-spacing:.13em;color:var(--hl-accent);margin:0 0 10px}
.tws-hvac-desk .hl-hero{position:relative;padding:30px 0;border-bottom:1px solid var(--hl-line);background:#101e27}.tws-hvac-desk .hl-hero .breadcrumbs{font-size:12px;margin:0 0 24px;text-transform:none;letter-spacing:0;flex-wrap:wrap;gap:8px}.tws-hvac-desk .hl-hero .breadcrumbs a{font-size:12px;text-transform:none;letter-spacing:0;min-height:24px;display:inline-flex;align-items:center;color:var(--hl-text)}.tws-hvac-desk .hl-hero h1{font-size:clamp(34px,4vw,50px);line-height:1.04;max-width:24ch;margin:0 0 20px}.tws-hvac-desk .hl-deck{font-size:16px;line-height:1.75;max-width:54ch;margin:0 0 24px;color:#e2e8e7}.tws-hvac-desk .hl-hero-links{display:flex;gap:20px;flex-wrap:wrap;font-size:12px;font-weight:650}.tws-hvac-desk .hl-hero-links a{color:#e0efe5}.tws-hvac-desk #calculator{scroll-margin-top:110px}
.tws-hvac-desk .hl-workspace{padding:40px 0 30px}.tws-hvac-desk .hl-section-head{display:flex;gap:25px;align-items:end;justify-content:space-between;margin-bottom:25px}.tws-hvac-desk .hl-section-head h2{max-width:23ch;margin-bottom:0}.tws-hvac-desk .hl-section-head>p{font-size:12px;line-height:1.8;max-width:30ch;margin:0}.tws-hvac-desk .hl-studio.tool-shell{display:grid;grid-template-columns:minmax(250px,.75fr) minmax(0,1.25fr);gap:0;padding:0;align-items:stretch;border:1px solid var(--hl-line);border-radius:3px;background:var(--hl-panel);box-shadow:none;overflow:hidden}.tws-hvac-desk .hl-studio .tool-panel{border:0;border-right:1px solid var(--hl-line);border-radius:0;padding:25px;background:none;box-shadow:none}.tws-hvac-desk .hl-studio .tool-panel-head{display:flex;align-items:start;justify-content:space-between;gap:14px;margin-bottom:24px}.tws-hvac-desk .hl-studio .tool-panel-head>div{display:block}.tws-hvac-desk .hl-studio .tool-panel-head h3{font-size:23px;margin:8px 0 0}
.tws-hvac-desk .hl-studio .tool-ghost-btn,.tws-hvac-desk .hl-button{min-height:38px;padding:8px 10px;border:1px solid var(--hl-line);border-radius:3px;background:none;box-shadow:none;color:var(--hl-text);font:600 11px/1.4 ui-sans-serif,system-ui,sans-serif;text-transform:none;letter-spacing:0;cursor:pointer}.tws-hvac-desk .hl-button{min-height:44px;padding:11px 14px}.tws-hvac-desk .hl-studio .tool-ghost-btn:hover,.tws-hvac-desk .hl-button:hover{background:var(--hl-accent);color:#08151d;border-color:var(--hl-accent)}.tws-hvac-desk main button:disabled{cursor:not-allowed;opacity:.5}
.tws-hvac-desk .hl-studio .tool-input-grid{display:grid;grid-template-columns:1fr;gap:19px;margin:0}.tws-hvac-desk .hl-studio label{display:block;margin:0;color:var(--hl-muted);font-size:12px;line-height:1.4}.tws-hvac-desk .hl-studio label>span{display:block;margin:0 0 9px;min-height:17px}.tws-hvac-desk .hl-studio .input-unit{display:flex;align-items:center;height:54px;border:1px solid #6a8390;border-radius:3px;background:#0a1821;overflow:hidden}.tws-hvac-desk .hl-studio input{appearance:textfield;-moz-appearance:textfield;flex:1;width:100%;min-width:0;height:52px;padding:12px;color:var(--hl-text);background:none;border:0!important;border-radius:0;font:500 23px/1.2 ui-sans-serif,system-ui,sans-serif;font-variant-numeric:tabular-nums;box-shadow:none}.tws-hvac-desk input::-webkit-inner-spin-button,.tws-hvac-desk input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.tws-hvac-desk .hl-studio .input-unit em{flex:0 0 auto;white-space:nowrap;font:10px/1.3 ui-monospace,SFMono-Regular,Consolas,monospace;font-style:normal;padding:0 10px 0 3px;color:var(--hl-accent);border:0;background:none}.tws-hvac-desk .hl-studio .input-unit:focus-within{outline:2px solid #ead0a5;outline-offset:2px}.tws-hvac-desk .hl-studio input:focus-visible{outline:none}.tws-hvac-desk input[aria-invalid=true]{background:#702f2b55!important}.tws-hvac-desk .hl-help{font-size:11px;line-height:1.75;margin:20px 0;color:var(--hl-muted)}.tws-hvac-desk .hl-studio .tool-calc-btn{width:100%;min-height:46px;margin:0;padding:11px 16px;border:1px solid var(--hl-accent);border-radius:3px;background:var(--hl-accent);color:#07151e!important;font-size:13px;font-weight:700;text-transform:none;letter-spacing:0;cursor:pointer;box-shadow:none}.tws-hvac-desk .hl-studio .tool-calc-btn:hover{color:#07151e!important;background:#d4e2e9;border-color:#d4e2e9}.tws-hvac-desk .hl-error{color:#f1c1a7;font-size:12px;line-height:1.6;margin:14px 0 0}.tws-hvac-desk .hl-error:empty{display:none}
.tws-hvac-desk .hl-studio .tool-results{position:static!important;inset:auto;background:var(--hl-inset);padding:25px;border:0;border-radius:0;box-shadow:none}.tws-hvac-desk .hl-studio .tool-results .tool-panel-head{align-items:center;margin-bottom:22px}.tws-hvac-desk .hl-studio .tool-results h2{font-size:23px;margin:0}.tws-hvac-desk .hl-studio .tool-results .tool-step{display:none}.tws-hvac-desk .hl-studio .tool-metric-grid{display:grid;grid-template-columns:1fr 1fr;gap:23px 18px;margin:0}.tws-hvac-desk .hl-studio .tool-metric{display:flex;flex-direction:column;gap:8px;min-height:0;border:0;border-left:1px solid #526c79;border-radius:0;padding:0 0 0 16px;background:none;box-shadow:none}.tws-hvac-desk .hl-studio .tool-metric:nth-child(odd){border-left:0;padding-left:0}.tws-hvac-desk .hl-studio .tool-metric :is(span,strong,small){margin:0}.tws-hvac-desk .hl-studio .tool-metric span{font:10px/1.5 ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--hl-muted);text-transform:none;letter-spacing:0;min-height:30px}.tws-hvac-desk .hl-studio .tool-metric strong{font:400 clamp(29px,3.4vw,42px)/1.05 ui-sans-serif,system-ui,sans-serif;color:var(--hl-text);letter-spacing:-.04em;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}.tws-hvac-desk .hl-studio .tool-metric small{font:10px/1.4 ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--hl-muted)}.tws-hvac-desk .hl-studio .tool-result-note{font-size:11px;line-height:1.7;color:var(--hl-muted);padding:0;margin:21px 0 0;border:0}
.tws-hvac-desk .hl-budget{padding:22px 25px 24px;border-top:1px solid var(--hl-line)}.tws-hvac-desk .hl-budget-head{display:flex;gap:15px;align-items:center;justify-content:space-between;margin-bottom:18px}.tws-hvac-desk .hl-budget-head h3{font-size:22px;margin:0}.tws-hvac-desk .hl-budget-head>span{font:9px/1.5 ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--hl-accent)}.tws-hvac-desk .hl-track{display:flex;width:100%;height:26px;background:#0d1a22;border:1px solid #a8c3cf;border-radius:2px;overflow:hidden}.tws-hvac-desk .hl-track>span{height:100%}.tws-hvac-desk [data-hl-bar=lights],.tws-hvac-desk .hl-key-lights{background:var(--hl-accent)}.tws-hvac-desk [data-hl-bar=equipment],.tws-hvac-desk .hl-key-equipment{background:var(--hl-other)}.tws-hvac-desk [data-hl-bar=dehu],.tws-hvac-desk .hl-key-dehu{background:var(--hl-warm)}.tws-hvac-desk [data-hl-bar=people],.tws-hvac-desk .hl-key-people{background:var(--hl-people)}.tws-hvac-desk [data-hl-bar=margin],.tws-hvac-desk .hl-key-margin{background:repeating-linear-gradient(135deg,#e2d8c2 0,#e2d8c2 4px,#4b463e 4px,#4b463e 6px)}.tws-hvac-desk .hl-ledger{margin:20px 0 0}.tws-hvac-desk .hl-ledger>div{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:14px;align-items:baseline;padding:11px 0;border-bottom:1px solid var(--hl-line)}.tws-hvac-desk .hl-ledger dt{font-size:12px;line-height:1.6;color:var(--hl-muted);padding-left:17px;position:relative}.tws-hvac-desk .hl-ledger i{position:absolute;left:0;top:6px;width:8px;height:8px}.tws-hvac-desk .hl-ledger dd{margin:0;color:var(--hl-text);font:400 18px/1.2 ui-sans-serif,system-ui,sans-serif;font-variant-numeric:tabular-nums;overflow-wrap:anywhere;text-align:right}.tws-hvac-desk .hl-budget-note,.tws-hvac-desk .hl-zero{font-size:10px;line-height:1.75;margin:15px 0 0;color:var(--hl-muted)}
.tws-hvac-desk .hl-compare{grid-column:1/-1;border-top:1px solid var(--hl-line);padding:27px 25px}.tws-hvac-desk .hl-compare-head{display:flex;gap:30px;align-items:center;justify-content:space-between}.tws-hvac-desk .hl-compare h2{font-size:29px;max-width:26ch;margin:7px 0 12px}.tws-hvac-desk .hl-compare-head p:not(.hl-kicker){font-size:12px;line-height:1.75;max-width:68ch;margin:0}.tws-hvac-desk [data-hl-hold]{flex:0 0 auto;background:#294550;border-color:#90aebb}.tws-hvac-desk .hl-empty{margin:23px 0 0;padding:17px;border:1px dashed var(--hl-line);font-size:12px;line-height:1.7}.tws-hvac-desk .hl-summaries{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:25px 0 16px}.tws-hvac-desk .hl-summaries p{margin:0;font-size:11px;line-height:1.8;overflow-wrap:anywhere}.tws-hvac-desk .hl-table{display:table;width:100%;max-width:none;table-layout:fixed;border-collapse:collapse;border:0;background:none;margin:0}.tws-hvac-desk .hl-table caption{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.tws-hvac-desk .hl-table th,.tws-hvac-desk .hl-table td{display:table-cell;padding:13px 10px;border:0;border-bottom:1px solid var(--hl-line);background:none;color:var(--hl-text);font:12px/1.6 ui-sans-serif,system-ui,sans-serif;font-variant-numeric:tabular-nums;text-align:right;overflow-wrap:anywhere}.tws-hvac-desk .hl-table th:first-child{width:34%;padding-left:0;text-align:left}.tws-hvac-desk .hl-table thead th{color:var(--hl-accent);font:10px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;text-transform:uppercase;letter-spacing:.04em}.tws-hvac-desk .hl-table small{display:block;font-size:10px;color:var(--hl-muted)}.tws-hvac-desk .hl-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}.tws-hvac-desk .hl-status{font-size:12px;line-height:1.7;margin:17px 0 0}.tws-hvac-desk .hl-status:empty{display:none}.tws-hvac-desk .hl-copy-fallback{margin-top:20px}.tws-hvac-desk .hl-copy-fallback label{font-size:12px;margin-bottom:10px}.tws-hvac-desk .hl-copy-fallback textarea{display:block;width:100%;resize:vertical;padding:14px;background:#0a1821;border:1px solid var(--hl-line);color:var(--hl-text);font:12px/1.7 ui-monospace,monospace}
.tws-hvac-desk .hl-limits{grid-column:1/-1;background:#282c2b;border-top:1px solid var(--hl-line);padding:25px}.tws-hvac-desk .hl-limits .hl-kicker{color:var(--hl-warm)}.tws-hvac-desk .hl-limits p:not(.hl-kicker){font-size:12px;line-height:1.85;max-width:100ch;margin:0 0 12px}.tws-hvac-desk .hl-limits strong{color:var(--hl-text)}.tws-hvac-desk .hl-limits>a{font-size:11px;color:var(--hl-warm)}.tws-hvac-desk noscript{grid-column:1/-1;padding:0 25px}
.tws-hvac-desk .hl-method{background:none;padding:26px 0}.tws-hvac-desk .hl-method .tool-copy-grid{display:block}.tws-hvac-desk .hl-method h2{max-width:28ch}.tws-hvac-desk .hl-method h3{margin-top:26px}.tws-hvac-desk .hl-method p,.tws-hvac-desk .hl-method li{font-size:14px;line-height:1.85;max-width:77ch}.tws-hvac-desk .hl-method .tool-side{background:none;border:0;border-radius:0;padding:12px 0 0;margin-top:24px}.tws-hvac-desk .hl-method ul{max-width:76ch;padding-left:19px}.tws-hvac-desk .tool-example{border:1px solid var(--hl-line);border-left:3px solid var(--hl-accent);border-radius:0;background:var(--hl-panel);margin:25px 0;padding:22px}.tws-hvac-desk .tool-example strong{font:10px/1.5 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.1em;text-transform:uppercase;color:var(--hl-accent)}.tws-hvac-desk .tool-example p{margin:12px 0 0}.tws-hvac-desk .hl-method .btn{display:inline-flex;align-items:center;min-height:44px;background:none;color:var(--hl-accent);border:1px solid var(--hl-line);border-radius:3px;box-shadow:none;text-transform:none;letter-spacing:0;font-size:12px}.tws-hvac-desk .hl-context{border-left:1px solid var(--hl-line);padding-left:20px;margin:25px 0}
.tws-hvac-desk .tool-faq details{background:none;border:0;border-bottom:1px solid var(--hl-line);border-radius:0;padding:0;margin:0}.tws-hvac-desk .tool-faq summary{min-height:54px;padding:17px 0;color:var(--hl-text);font-size:14px;line-height:1.6}.tws-hvac-desk .tool-faq p{font-size:13px;line-height:1.8;max-width:74ch;padding-bottom:20px;margin:0}
.tws-hvac-desk .hl-next{border-top:1px solid var(--hl-line);padding:30px 0 38px;background:#132329}.tws-hvac-desk .hl-next h2{margin-bottom:12px}.tws-hvac-desk .hl-next-intro{font-size:13px;line-height:1.8;max-width:65ch;margin:0}.tws-hvac-desk .hl-next-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;margin-top:25px;border-top:1px solid var(--hl-line)}.tws-hvac-desk .hl-next-card{display:flex;flex-direction:column;gap:12px;min-height:155px;padding:22px 20px;border-right:1px solid var(--hl-line);text-decoration:none;background:none;color:var(--hl-text)}.tws-hvac-desk .hl-next-card:first-child{padding-left:0}.tws-hvac-desk .hl-next-card:last-child{padding-right:0;border-right:0}.tws-hvac-desk .hl-next-card>span{font:9px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.08em;text-transform:uppercase;color:var(--hl-accent)}.tws-hvac-desk .hl-next-card>strong{font:400 25px/1.15 Georgia,serif;color:var(--hl-text)}.tws-hvac-desk .hl-next-card>small{font-size:12px;line-height:1.75;color:var(--hl-muted)}.tws-hvac-desk .hl-next-card:hover{background:#233b43}
@media(max-width:700px){.tws-hvac-desk .hl-studio.tool-shell{grid-template-columns:1fr}.tws-hvac-desk .hl-studio .tool-panel{border-right:0;border-bottom:1px solid var(--hl-line)}.tws-hvac-desk .hl-studio .tool-input-grid{grid-template-columns:1fr 1fr;gap:18px 12px}.tws-hvac-desk .hl-studio label:first-child{grid-column:1/-1}.tws-hvac-desk .hl-studio label:not(:first-child)>span{min-height:34px}.tws-hvac-desk .hl-section-head{display:block}.tws-hvac-desk .hl-section-head>p{max-width:46ch;margin-top:14px}.tws-hvac-desk .hl-compare-head{display:block}.tws-hvac-desk [data-hl-hold]{margin-top:20px;width:100%}.tws-hvac-desk .hl-summaries{grid-template-columns:1fr;gap:12px}.tws-hvac-desk .hl-next-grid{grid-template-columns:1fr}.tws-hvac-desk .hl-next-card,.tws-hvac-desk .hl-next-card:first-child,.tws-hvac-desk .hl-next-card:last-child{min-height:0;padding:22px 0;border:0;border-bottom:1px solid var(--hl-line);gap:9px}}
@media(max-width:600px){.tws-hvac-desk .hl-hero{padding:24px 0 25px}.tws-hvac-desk .hl-hero .breadcrumbs{font-size:11px;gap:6px;margin-bottom:20px}.tws-hvac-desk .hl-hero .breadcrumbs a{font-size:11px}.tws-hvac-desk .hl-hero h1{font-size:34px}.tws-hvac-desk .hl-deck{font-size:14px;line-height:1.75}.tws-hvac-desk .hl-hero-links{font-size:11px;gap:18px}.tws-hvac-desk .hl-section-head h2{font-size:29px}.tws-hvac-desk .hl-workspace{padding-top:32px}.tws-hvac-desk .hl-studio .tool-panel,.tws-hvac-desk .hl-studio .tool-results,.tws-hvac-desk .hl-budget,.tws-hvac-desk .hl-compare,.tws-hvac-desk .hl-limits{padding:22px 17px}.tws-hvac-desk .hl-studio label{font-size:11px}.tws-hvac-desk .hl-studio input{font-size:22px;padding:10px}.tws-hvac-desk .hl-studio .input-unit em{font-size:9px;padding-right:8px}.tws-hvac-desk .hl-studio .tool-results h2{font-size:22px}.tws-hvac-desk .hl-studio .tool-metric-grid{gap:23px 13px}.tws-hvac-desk .hl-studio .tool-metric strong{font-size:32px}.tws-hvac-desk .hl-compare h2{font-size:27px}.tws-hvac-desk .hl-table th,.tws-hvac-desk .hl-table td{padding:12px 5px;font-size:11px}.tws-hvac-desk .hl-table thead th{font-size:9px;letter-spacing:0}.tws-hvac-desk .hl-method p,.tws-hvac-desk .hl-method li{font-size:13px}.tws-hvac-desk .tool-faq summary{font-size:13px}}
.tws-hvac-desk .hl-track>span{box-shadow:inset -1px 0 #0d1a22}
@media(max-width:360px){.tws-hvac-desk .hl-studio .tool-metric strong{font-size:28px}}
@media(prefers-reduced-motion:reduce){.tws-hvac-desk main *{scroll-behavior:auto!important;transition:none!important}}