.t2qcal-app{--ink:#000;--ink-deep:#000;--blue:#0276fd;--navy:#009;--red:red;--orange:#ff8c00;--green:#0a0;--green-text:green;--paper:#fff;--paper-warm:#fbfbfb;--paper-soft:#fafafa;--rule:silver;--rule-dark:#a9a9a9;--muted:#333;--label:Verdana, Geneva, sans-serif}.t2qcal-app *{box-sizing:border-box}.t2qcal-app{scroll-behavior:smooth;background:var(--paper);color:var(--ink);margin:0;font-family:Arial,Helvetica,sans-serif;font-size:16px}.t2qcal-app a{color:inherit;text-decoration:none}.t2qcal-app button,.t2qcal-app input,.t2qcal-app select{font:inherit}.t2qcal-app button,.t2qcal-app a{-webkit-tap-highlight-color:transparent}.t2qcal-app .site-header{z-index:40;border-bottom:1px solid var(--rule);background:#fff;height:58px;position:sticky;top:0}.t2qcal-app .header-inner{align-items:center;gap:34px;max-width:1240px;height:100%;margin:auto;padding:0 28px;display:flex}.t2qcal-app .brand{color:var(--ink-deep);align-items:center;gap:9px;font:700 17px Arial,sans-serif;display:inline-flex}.t2qcal-app .brand b{font:12px var(--label);color:#fff;background:var(--blue);border-radius:4px;padding:2px 6px}.t2qcal-app .brand-mark{width:27px;height:26px;display:inline-block;position:relative}.t2qcal-app .brand-mark i{border:2px solid var(--blue);width:12px;height:12px;display:block;position:absolute;transform:skewY(-22deg)}.t2qcal-app .brand-mark i:first-child{top:8px;left:0}.t2qcal-app .brand-mark i:nth-child(2){top:8px;right:0}.t2qcal-app .brand-mark i:nth-child(3){border-color:var(--blue);top:0;left:7px}.t2qcal-app .primary-nav{align-items:center;gap:4px;margin-left:auto;display:flex}.t2qcal-app .primary-nav a{color:var(--navy);border-bottom:2px solid #0000;padding:8px 12px;font:15px Arial,sans-serif}.t2qcal-app .primary-nav a:hover{color:var(--blue);border-color:var(--blue)}.t2qcal-app .directory-button{border:1px solid var(--blue);color:#fff;background:var(--blue);border-radius:4px;padding:7px 13px;font:15px Arial,sans-serif}.t2qcal-app .directory-button:hover{background:#0263d8}.t2qcal-app .hero{grid-template-columns:.92fr 1.08fr;align-items:center;gap:68px;max-width:1240px;min-height:655px;margin:auto;padding:74px 28px 70px;display:grid}.t2qcal-app .eyebrow{color:var(--muted);font:13px var(--label);align-items:center;gap:10px;display:flex}.t2qcal-app .eyebrow span{background:currentColor;width:28px;height:1px}.t2qcal-app .hero h1,.t2qcal-app .page-intro h1{color:var(--ink-deep);font:400 clamp(28px, 3.4vw, 40px)/1.15 var(--label);margin:16px 0 18px}.t2qcal-app .hero h1 em,.t2qcal-app .page-intro h1 em{color:var(--blue);font-weight:inherit;font-style:normal}.t2qcal-app .hero-copy>p{max-width:570px;color:var(--muted);margin:0;font-size:18px;line-height:1.65}.t2qcal-app .hero-actions{align-items:center;gap:26px;margin-top:34px;display:flex}.t2qcal-app .button{border:1px solid var(--rule-dark);background:var(--paper-warm);min-height:40px;color:var(--navy);border-radius:5px;justify-content:center;align-items:center;gap:20px;padding:0 16px;font-size:15px;display:inline-flex}.t2qcal-app .button.primary{color:#fff;background:var(--blue);border-color:var(--blue)}.t2qcal-app .button.primary:hover{background:#0263d8}.t2qcal-app .text-link{color:var(--navy);border-bottom:1px solid var(--navy);padding:10px 0 7px;font-size:15px}.t2qcal-app .text-link:hover{color:var(--blue);border-color:var(--blue)}.t2qcal-app .hero-stats{border-top:1px solid var(--rule);gap:26px;margin-top:48px;padding-top:20px;display:flex}.t2qcal-app .hero-stats span{max-width:115px;color:var(--muted);font:13px/1.4 var(--label)}.t2qcal-app .hero-stats b{color:var(--ink);margin-bottom:4px;font-size:17px;display:block}.t2qcal-app .hero-drawing{border:1px solid var(--rule-dark);background:#fff;min-width:0}.t2qcal-app .drawing-head,.t2qcal-app .diagram-toolbar{min-height:32px;color:var(--muted);background:var(--paper-warm);border-bottom:1px solid var(--rule);font:13px var(--label);justify-content:space-between;align-items:center;gap:18px;padding:0 10px;display:flex}.t2qcal-app .roof-sketch{background:#fff;height:365px;position:relative;overflow:hidden}.t2qcal-app .sketch-grid{display:none}.t2qcal-app .rafter-line{transform-origin:0;background:#c9a06d;border:1px solid #000;width:82%;height:12px;position:absolute;top:46%;left:7%;transform:rotate(-21.75deg)}.t2qcal-app .wall-shape{background:#dcdcdc;border:1px solid #000;width:36px;height:116px;position:absolute;bottom:45px;left:19%}.t2qcal-app .dimension{color:#000;font:13px var(--label);align-items:center;display:flex;position:absolute}.t2qcal-app .dimension i{background:currentColor;flex:1;height:1px;position:relative}.t2qcal-app .dimension i:after{content:"";background:currentColor;width:1px;height:9px;position:absolute;top:-4px}.t2qcal-app .dimension i:first-child:after{left:0}.t2qcal-app .dimension i:last-child:after{right:0}.t2qcal-app .dimension span{background:#fff;padding:0 8px}.t2qcal-app .dim-run{bottom:33px;left:20%;right:10%}.t2qcal-app .dim-rise{width:190px;top:22%;right:-23px;transform:rotate(-90deg)}.t2qcal-app .angle-mark{color:green;font:700 14px var(--label);position:absolute;bottom:93px;left:25%}.t2qcal-app .cut-note{border-left:2px solid var(--red);color:var(--red);font:12px/1.4 var(--label);padding-left:10px;position:absolute;top:8%;right:6%}.t2qcal-app .cut-note b{font-size:12px}.t2qcal-app .draw-point{color:#fff;background:var(--blue);width:21px;height:21px;font:13px var(--label);border-radius:50%;place-items:center;display:grid;position:absolute}.t2qcal-app .point-a{bottom:136px;left:17.5%}.t2qcal-app .point-b{top:22%;right:9%}.t2qcal-app .drawing-results{border-top:1px solid var(--rule-dark);grid-template-columns:repeat(3,1fr);display:grid}.t2qcal-app .drawing-results span{border-right:1px solid var(--rule);min-width:0;padding:14px 12px}.t2qcal-app .drawing-results span:last-child{border:0}.t2qcal-app .drawing-results small{color:var(--muted);font:13px var(--label);margin-bottom:6px;display:block}.t2qcal-app .drawing-results b{font:700 13px var(--label);color:var(--ink-deep)}.t2qcal-app .home-section{max-width:1240px;margin:auto;padding:80px 28px}.t2qcal-app .quick-section{border-top:1px solid var(--rule)}.t2qcal-app .section-heading{justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:32px;display:flex}.t2qcal-app .section-heading>div{align-items:baseline;gap:18px;display:flex}.t2qcal-app .section-heading h2{color:var(--ink-deep);font:400 21px var(--label);margin:0}.t2qcal-app .section-heading>a{border-bottom:1px solid var(--ink);padding-bottom:3px;font-size:12px;font-weight:800}.t2qcal-app .section-index{color:var(--blue);font:13px var(--label)}.t2qcal-app .section-index.light{color:var(--blue)}.t2qcal-app .section-aside{color:var(--muted);font:13px/1.5 var(--label)}.t2qcal-app .tool-grid{grid-template-columns:repeat(4,1fr);gap:14px;display:grid}.t2qcal-app .tool-card{border:1px solid var(--rule-dark);background:#fff;border-radius:5px;flex-direction:column;min-width:0;min-height:210px;padding:17px;display:flex}.t2qcal-app .tool-card:hover{border-color:var(--blue)}.t2qcal-app .tool-card-top{justify-content:space-between;align-items:flex-start;margin-bottom:27px;display:flex}.t2qcal-app .tool-icon{--tool-accent:var(--blue);border:1px solid var(--tool-accent);background:#fafafa;width:37px;height:37px;display:block;position:relative}.t2qcal-app .tool-icon i{background:var(--tool-accent);display:block;position:absolute}.t2qcal-app .tool-icon i:first-child{width:26px;height:2px;top:18px;left:5px;transform:rotate(-26deg)}.t2qcal-app .tool-icon i:last-child{opacity:.45;width:2px;height:25px;top:5px;left:18px}.t2qcal-app .unit-pill{border:1px solid var(--rule);color:var(--muted);font:13px var(--label);padding:4px 6px}.t2qcal-app .tool-card>strong{color:var(--navy);font:700 16px Arial,sans-serif}.t2qcal-app .tool-card>p{min-height:40px;color:var(--muted);margin:10px 0 22px;font-size:13px;line-height:1.5}.t2qcal-app .tool-link-label{border-top:1px solid var(--rule);color:var(--blue);font:13px var(--label);justify-content:space-between;align-items:center;margin-top:auto;padding-top:12px;display:flex}.t2qcal-app .tool-card-muted{opacity:.7;background:#fbfbfa}.t2qcal-app .tool-card-muted:hover{border-color:var(--rule-dark);transform:none}.t2qcal-app .tool-card-muted .tool-link-label{color:var(--muted)}.t2qcal-app .workflow-band{color:var(--ink);background:var(--paper-warm);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);grid-template-columns:1fr 1.1fr;gap:90px;padding:62px max(28px,50vw - 592px);display:grid}.t2qcal-app .workflow-copy h2{max-width:520px;font:400 24px/1.25 var(--label);margin:13px 0 20px}.t2qcal-app .workflow-copy p{max-width:535px;color:var(--muted);margin:0;line-height:1.65}.t2qcal-app .workflow-steps{margin:0;padding:0;list-style:none}.t2qcal-app .workflow-steps li{border-top:1px solid var(--rule);gap:22px;padding:20px 0;display:flex}.t2qcal-app .workflow-steps li:last-child{border-bottom:1px solid var(--rule)}.t2qcal-app .workflow-steps li>b{border:1px solid var(--rule-dark);height:30px;color:var(--blue);font:13px var(--label);border-radius:50%;flex:0 0 30px;place-items:center;display:grid}.t2qcal-app .workflow-steps strong,.t2qcal-app .workflow-steps span{display:block}.t2qcal-app .workflow-steps strong{margin-bottom:6px;font-size:15px}.t2qcal-app .workflow-steps span{color:var(--muted);font-size:13px}.t2qcal-app .category-section{padding-bottom:95px}.t2qcal-app .category-grid{border-top:1px solid var(--rule-dark);border-left:1px solid var(--rule-dark);grid-template-columns:repeat(5,1fr);display:grid}.t2qcal-app .category-card{--category-accent:var(--blue);border-right:1px solid var(--rule-dark);border-bottom:1px solid var(--rule-dark);flex-direction:column;min-height:205px;padding:17px;display:flex;position:relative;overflow:hidden}.t2qcal-app .category-card:after{content:"";background:var(--category-accent);width:0;height:3px;transition:width .18s;position:absolute;bottom:0;left:0}.t2qcal-app .category-card:hover:after{width:100%}.t2qcal-app .category-number{color:var(--category-accent);font:13px var(--label)}.t2qcal-app .category-card h3{color:var(--ink-deep);margin:35px 0 9px;font-size:16px}.t2qcal-app .category-card p{color:var(--muted);margin:0;font-size:12px;line-height:1.45}.t2qcal-app .category-card>span:last-child{color:var(--muted);font:13px var(--label);justify-content:space-between;margin-top:auto;display:flex}.t2qcal-app .safety-strip{background:#fff9f6;border:1px solid #d4b8aa;grid-template-columns:48px 1fr auto;align-items:center;gap:20px;max-width:1184px;margin:0 auto 90px;padding:16px 20px;display:grid}.t2qcal-app .safety-icon{border:2px solid var(--red);width:34px;height:34px;color:var(--red);border-radius:50%;place-items:center;font-weight:900;display:grid}.t2qcal-app .safety-strip strong{color:var(--red);margin-bottom:3px;display:block}.t2qcal-app .safety-strip p{color:var(--muted);margin:0;font-size:12px}.t2qcal-app .safety-rule{color:var(--red);font:13px var(--label)}.t2qcal-app .directory-page{max-width:1240px;margin:auto;padding:70px 28px 100px}.t2qcal-app .page-intro{max-width:800px;margin-bottom:48px}.t2qcal-app .page-intro h1{font-size:clamp(26px,3.2vw,36px)}.t2qcal-app .page-intro>p{max-width:680px;color:var(--muted);font-size:17px;line-height:1.6}.t2qcal-app .directory-controls{border:1px solid var(--rule-dark);background:var(--paper-soft);grid-template-columns:1.4fr .7fr auto;align-items:end;gap:14px;min-height:90px;padding:15px;display:grid}.t2qcal-app .search-control,.t2qcal-app .select-control{flex-direction:column;gap:6px;display:flex;position:relative}.t2qcal-app .search-control>span,.t2qcal-app .select-control>span{color:var(--muted);font:13px var(--label)}.t2qcal-app .search-control input,.t2qcal-app .select-control select{border:1px solid var(--rule-dark);width:100%;height:42px;color:var(--ink);background:#fff;border-radius:0;outline:none;padding:0 12px}.t2qcal-app .search-control input:focus,.t2qcal-app .select-control select:focus{border-color:var(--blue);box-shadow:inset 0 -2px var(--blue)}.t2qcal-app .search-control kbd{border:1px solid var(--rule);color:var(--muted);font:13px var(--label);background:#f7f8f8;padding:4px 6px;position:absolute;bottom:9px;right:9px}.t2qcal-app .check-control{border:1px solid var(--rule-dark);white-space:nowrap;background:#fff;align-items:center;gap:9px;height:42px;padding:0 13px;font-size:12px;font-weight:700;display:flex}.t2qcal-app .check-control input{width:17px;height:17px;accent-color:var(--blue)}.t2qcal-app .directory-result-line{color:var(--muted);font:13px var(--label);padding:22px 0 12px}.t2qcal-app .directory-result-line strong{color:var(--ink)}.t2qcal-app .directory-grid{grid-template-columns:repeat(4,1fr)}.t2qcal-app .empty-state{text-align:center;border:1px solid var(--rule);padding:60px 20px}.t2qcal-app .empty-state p{color:var(--muted)}.t2qcal-app .calculator-page{max-width:1240px;margin:auto;padding:28px 28px 100px}.t2qcal-app .calculator-breadcrumb{color:var(--muted);font:13px var(--label);gap:8px;margin-bottom:34px;display:flex}.t2qcal-app .calculator-breadcrumb a{color:var(--blue)}.t2qcal-app .calculator-title-row{border-bottom:1px solid var(--rule-dark);justify-content:space-between;align-items:flex-end;gap:30px;padding-bottom:24px;display:flex}.t2qcal-app .calculator-kicker{color:var(--muted);font:13px var(--label)}.t2qcal-app .calculator-title-row h1{color:var(--ink-deep);font:400 24px var(--label);margin:5px 0 6px}.t2qcal-app .calculator-title-row p{color:var(--muted);margin:0}.t2qcal-app .calculator-actions{align-items:center;gap:7px;display:flex}.t2qcal-app .unit-toggle{background:0 0;gap:4px;display:flex}.t2qcal-app .unit-toggle button{border:1px solid var(--rule-dark);min-width:76px;height:32px;color:var(--navy);background:var(--paper-warm);cursor:pointer;border-radius:5px;font:14px Arial,sans-serif}.t2qcal-app .unit-toggle button.active{color:#fff;background:var(--blue)}.t2qcal-app .quiet-action{border:1px solid var(--rule-dark);background:var(--paper-warm);height:32px;color:var(--navy);cursor:pointer;border-radius:5px;padding:0 13px;font:14px Arial,sans-serif}.t2qcal-app .quiet-action:hover{border-color:var(--blue);color:#fff;background:var(--blue)}.t2qcal-app .calculator-workbench{grid-template-columns:370px minmax(0,1fr);gap:14px;margin-top:14px;display:grid}.t2qcal-app .input-panel,.t2qcal-app .diagram-panel{border:1px solid var(--rule-dark);background:#fff;border-radius:5px}.t2qcal-app .input-panel{padding:20px}.t2qcal-app .calc-section-head{align-items:flex-start;gap:12px;margin-bottom:19px;display:flex}.t2qcal-app .calc-section-head>span{color:var(--blue);font:13px var(--label);flex:none;margin-top:3px}.t2qcal-app .calc-section-head h2{color:var(--ink-deep);font:700 16px var(--label);margin:0}.t2qcal-app .calc-section-head p{color:var(--muted);margin:4px 0 0;font-size:11px;line-height:1.4}.t2qcal-app .field-grid{gap:14px;display:grid}.t2qcal-app .number-field{min-width:0;display:block}.t2qcal-app .field-label{color:var(--muted);font:700 14px var(--label);justify-content:space-between;align-items:center;margin-bottom:5px;display:flex}.t2qcal-app .field-label small{border:1px solid var(--rule);width:18px;height:18px;color:var(--muted);font:13px var(--label);background:#fafafa;border-radius:6px;place-items:center;display:grid}.t2qcal-app .input-wrap{border:1px solid var(--rule-dark);background:#fff;border-radius:3px;grid-template-columns:1fr auto;min-height:38px;display:grid}.t2qcal-app .input-wrap:focus-within{border-color:var(--blue)}.t2qcal-app .input-wrap input{width:100%;min-width:0;height:36px;color:var(--green-text);background:0 0;border:0;outline:0;padding:0 9px;font:700 17px Arial,sans-serif}.t2qcal-app .input-wrap>b{border-left:1px solid var(--rule);min-width:38px;color:var(--muted);background:var(--paper-warm);font:13px var(--label);place-items:center;padding:0 8px;display:grid}.t2qcal-app .select-wrap{display:block}.t2qcal-app .select-wrap select{width:100%;height:36px;color:var(--green-text);background:#fff;border:0;outline:0;padding:0 9px;font:700 15px Arial,sans-serif}.t2qcal-app .fine-range{width:100%;height:7px;accent-color:var(--blue);cursor:ew-resize;margin:7px 0 0}.t2qcal-app .diagram-panel{min-width:0}.t2qcal-app .technical-canvas{aspect-ratio:16/9;width:100%;height:auto;min-height:300px;display:block}.t2qcal-app .results-section,.t2qcal-app .markout-section{border:1px solid var(--rule-dark);background:#fff;border-radius:5px;margin-top:14px;padding:18px}.t2qcal-app .result-grid{border-top:1px solid var(--rule-dark);border-left:1px solid var(--rule-dark);grid-template-columns:repeat(4,1fr);display:grid}.t2qcal-app .result-grid>div{border-right:1px solid var(--rule-dark);border-bottom:1px solid var(--rule-dark);min-height:88px;padding:13px}.t2qcal-app .result-grid span{color:var(--muted);font:13px var(--label);margin-bottom:12px;display:block}.t2qcal-app .result-grid strong{color:var(--green-text);font:700 17px Arial,sans-serif}.t2qcal-app .result-grid .primary-result{color:#fff;background:var(--blue)}.t2qcal-app .dimension-list{border-top:1px solid var(--rule);border-left:1px solid var(--rule);grid-template-columns:repeat(4,1fr);display:grid}.t2qcal-app .dimension-list>div{border-right:1px solid var(--rule);border-bottom:1px solid var(--rule);align-items:center;gap:10px;min-height:47px;padding:8px 11px;display:flex}.t2qcal-app .dimension-list span{color:var(--muted);font:13px var(--label)}.t2qcal-app .dimension-list strong{font:13px var(--label)}.t2qcal-app .calculator-caution{background:#fff9f6;border:1px solid #d4b8aa;grid-template-columns:auto 1fr;gap:18px;margin-top:14px;padding:16px 19px;font-size:12px;display:grid}.t2qcal-app .calculator-caution span{color:var(--muted)}.t2qcal-app .converter-card{border:1px solid var(--rule-dark);margin-top:14px;padding:24px}.t2qcal-app .converter-row{grid-template-columns:1fr 1fr 40px 1fr;align-items:end;gap:12px;display:grid}.t2qcal-app .converter-arrow{height:40px;color:var(--blue);place-items:center;font-size:22px;display:grid}.t2qcal-app .converter-result{border:1px solid var(--rule-dark);background:var(--paper-soft);text-align:center;grid-template-columns:1fr 40px 1fr;align-items:center;gap:12px;min-height:130px;margin:24px 0;padding:20px;display:grid}.t2qcal-app .converter-result span{font:700 18px var(--label)}.t2qcal-app .converter-result b{color:var(--muted)}.t2qcal-app .converter-result strong{color:var(--green-text);overflow-wrap:anywhere;font:700 26px Arial,sans-serif}.t2qcal-app 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