:root{--ink:#1e303b;--muted:#53616b;--paper:#f5f5f1;--line:#cbd1d2;--sage:#edf2f3;--green:#a84022;--warm:#e7b99e;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}
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@media(max-width:1320px){main{margin:0 28px}.intro h1 br{display:block}.workbench{grid-template-columns:390px 1fr}.controls,.preview-panel{padding:22px}}
@media(max-width:960px){.workbench{grid-template-columns:1fr 1fr}.controls,.preview-panel{padding:18px}.three-columns{gap:8px}.preview-heading{flex-wrap:wrap}.preview-legend #flat-size{margin-left:0}.preview-stage{height:390px;padding:14px 10px 30px}.preview-caption{font-size:7px}.prototype-badge{display:none}.assembly{gap:30px}.guide-grid a{padding:20px}.guide-grid h3{font-size:18px}}
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@media(max-width:360px){.controls{padding:14px}.preview-panel{padding:18px 12px}.template-tabs small{font-size:10px}.template-tabs button svg{width:66px}.intro h1{font-size:29px}.brand{font-size:21px}.brand-mark{width:26px}nav{gap:12px}.three-columns{gap:6px}.two-columns{gap:10px}.preview-caption{font-size:7px}.preview-stage{height:350px}.assembly ol{grid-template-columns:1fr}.controls label{font-size:12px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

.measurement-help{margin:14px 0}.measurement-help summary{font-size:14px;min-height:42px;padding:11px 0;cursor:pointer;font-weight:600}.measurement-help .measurement-sketch{margin:4px 0 16px}.task-copy h2{font-size:19px}

label .field-error{color:#923819;font-size:12px;line-height:1.5;font-weight:500}
/* Site Kit supplies content structure; this site's manual uses its own visual language. */
body .nk-header{max-width:1320px;min-height:76px;padding:20px 28px;border-bottom:2px solid var(--ink);align-items:center}.nk-article h1{font:700 clamp(30px,4vw,38px)/1.15 Arial,Helvetica,sans-serif;letter-spacing:-.7px}.nk-article h2{font:700 25px/1.25 Arial,Helvetica,sans-serif;letter-spacing:-.4px}.nk-article h3{font-family:Arial,Helvetica,sans-serif;font-weight:700}.nk-article .nk-lede{font-size:17px}.nk-article .nk-toc,.nk-article .nk-evidence,.nk-article .nk-related{border-radius:0;border-color:var(--line);padding:18px 20px}.nk-article .nk-toc{display:block}.nk-article .nk-toc ul{padding-left:22px;margin:10px 0 0}.nk-article .callout{border-left-color:var(--green)}.nk-article .nk-button{border-radius:2px}.nk-article .nk-toc a{font-size:14px}@media(max-width:740px){body .nk-header{padding:18px 16px;min-height:66px}.nk-article{margin-top:22px}}