:root{--ink:#293b33;--muted:#81867e;--line:#e1e4dc;--paper:#fafaf6;--accent:#42644e}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--paper);font-family:Arial,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;font-size:14px;letter-spacing:-.025em}button,input{font:inherit}button{cursor:pointer;color:inherit}button:focus-visible,input:focus-visible,summary:focus-visible,a:focus-visible{outline:2px solid #658870;outline-offset:4px}button{touch-action:manipulation}svg{fill:none;stroke:currentColor;stroke-width:1.5;stroke-linejoin:round;stroke-linecap:round}.header{height:76px;padding:0 34px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:#fffefa}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;color:var(--ink);font-weight:700;font-size:17px}.brand svg{width:26px;height:26px;stroke-width:1.7}.brand-sep{color:#ccd0c8;font-weight:400;margin:0 4px}.brand-sub{font-size:10px;letter-spacing:.16em;color:var(--muted);font-weight:500}.version{display:flex;align-items:center;gap:8px;font-size:12px;color:#777f76}.version>span,.status-dot{width:6px;height:6px;background:#709079;border-radius:50%;display:inline-block}.version b{border-left:1px solid #dfe2db;padding-left:12px;margin-left:6px;font-size:11px;font-weight:500}.layout{height:100dvh;min-height:650px;display:grid;grid-template-columns:300px minmax(0,1fr)}.sidebar{padding:33px 28px 20px;overflow-y:auto;border-right:1px solid var(--line);background:#fffefa;scrollbar-width:thin}.eyebrow{font-size:10px;font-weight:600;letter-spacing:.18em;color:#879182;margin:0 0 12px}h1{font-size:30px;font-weight:500;letter-spacing:-.05em;margin:0 0 16px}.lead{font-size:17px;font-weight:400;line-height:1.6;margin:0 0 10px}.subtitle{font-size:12px;color:#8b8f86;line-height:1.8;margin:0}.measure-card{margin-top:28px;padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.section-title{display:flex;justify-content:space-between;align-items:center}.section-title h2{font-size:12px;margin:0;font-weight:600}.section-title>span{font-size:9px;color:#95998f}.size-main{display:flex;align-items:center;gap:9px;margin:20px 0}.size-main>strong{font-size:42px;font-weight:400;letter-spacing:-.045em;line-height:1}.size-main>span{font-size:13px;color:#8c9388}.size-main small{display:block;font-size:10px;margin-top:5px}.sizes{display:grid;grid-template-columns:1fr 1fr}.sizes>div+div{border-left:1px solid var(--line);padding-left:21px}.sizes span{display:block;font-size:10px;color:#93998e;margin-bottom:7px}.sizes strong{font-size:21px;font-weight:400}.sizes small{font-size:11px;color:#92988d}.area-note{display:flex;justify-content:space-between;margin:18px 0 0;padding-top:13px;border-top:1px dashed #e5e7e0;font-size:10px;color:#8d9487}.area-note span{color:#a0a596}.settings{padding:23px 0 15px}.height-label{margin-top:20px;display:flex;align-items:center;justify-content:space-between;font-size:11px}.height-label>span{font-size:12px}.height-label em{font-size:9px;font-style:normal;background:#f1eee6;color:#9b8968;padding:3px 5px;border-radius:3px;margin-left:4px}input[type=range]{width:100%;height:3px;margin:20px 0 0;accent-color:#527058;cursor:pointer}.range-labels{display:flex;justify-content:space-between;font-size:9px;color:#9a9e93;margin:8px 0 18px}.toggle-row{position:relative;display:flex;align-items:center;justify-content:space-between;font-size:11px;margin:15px 0;cursor:pointer}.toggle-row input{position:absolute;right:0;opacity:0;width:30px;height:20px}.toggle-row i{width:29px;height:16px;border-radius:10px;background:#e0e3da;transition:.2s;pointer-events:none}.toggle-row i:after{content:"";display:block;width:12px;height:12px;border-radius:50%;background:white;margin:2px;box-shadow:0 1px 2px #0001;transition:.2s}.toggle-row input:checked+i{background:#527058}.toggle-row input:checked+i:after{transform:translateX(13px)}.toggle-row input:focus-visible+i{outline:2px solid #527058;outline-offset:3px}.toggle-row input:disabled+i{opacity:.5}.setting-help{font-size:10px;line-height:1.6;color:#9a9e94;margin:14px 0 0}.reference-button{display:flex;gap:10px;align-items:center;background:#f4f5ef;border:1px solid #e2e6da;border-radius:5px;width:100%;padding:12px 10px;font-size:11px;text-align:left}.reference-button svg{width:17px;height:17px;color:#7e8e77}.reference-button span:last-child{margin-left:auto;font-size:15px;color:#88947e}.assumptions{margin-top:19px;font-size:10px;color:#93998d;line-height:1.8}.assumptions summary{cursor:pointer;color:#818d78}.assumptions p{margin:9px 0}.sidebar-footer{display:flex;align-items:center;gap:7px;border-top:1px solid var(--line);margin-top:22px;padding-top:15px;font-size:9px;color:#a0a697}.tiny-square{width:4px;height:4px;border:1px solid #a0a697}.stage{position:relative;min-width:0;overflow:hidden;background:#e9e8e1}.view-top{position:absolute;z-index:4;display:flex;justify-content:space-between;left:28px;right:28px;top:24px;pointer-events:none}.view-top>*,.view-tabs{pointer-events:auto}.view-tabs{padding:4px;border:1px solid #fff8;background:#f9f9f2db;backdrop-filter:blur(12px);box-shadow:0 4px 14px #3b443209;border-radius:8px;display:flex;gap:3px}.view-tabs button{background:transparent;border:0;border-radius:5px;padding:9px 15px;font-size:11px;color:#7d8877;transition:.2s}.view-tabs button.active{background:#3b5040;color:white;box-shadow:0 1px 4px #283a2120}.icon-button{height:38px;width:38px;padding:10px;background:#fafaf2cc;border:1px solid #fff8;border-radius:7px}.icon-button svg{width:17px;height:17px}#viewer{position:absolute;inset:0;touch-action:none;outline:none}#viewer canvas{display:block;width:100%;height:100%;touch-action:none}#loading{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;z-index:3;color:#7d8976;font-size:12px;background:#e9e8e1}#loading span{width:14px;height:14px;margin-left:12px;border:1px solid #8a9a7c;border-top-color:transparent;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.stage-caption{position:absolute;top:89px;left:34px;display:flex;gap:7px;align-items:center;font-size:10px;color:#9aa18f;pointer-events:none}.stage-caption .status-dot{height:4px;width:4px;background:#99a589}.compass{position:absolute;right:31px;bottom:97px;display:flex;flex-direction:column;align-items:center;color:#8d9781;pointer-events:none}.compass svg{width:44px;height:44px;stroke-width:.9;opacity:.7;transition:transform .1s}.compass .arrow{fill:#8d9781;stroke:none}.compass span{font-size:8px;margin-top:3px}.bottom-toolbar{position:absolute;bottom:24px;left:28px;right:28px;display:flex;align-items:center;justify-content:space-between;gap:14px;pointer-events:none}.bottom-toolbar>*{pointer-events:auto}.instructions{display:flex;gap:18px;font-size:10px;color:#929b87;padding:11px 14px;background:#f7f8f0bd;border:1px solid #fff5;border-radius:6px}.instructions b{font-weight:500;color:#66785a;margin-right:4px}.zoom-buttons{display:flex;align-items:center;padding:3px;background:#fafaf2dc;border:1px solid #fff9;border-radius:7px;box-shadow:0 2px 8px #00000004}.zoom-buttons button{border:0;background:none;width:34px;height:32px;font-size:22px;color:#6a7c5b;display:grid;place-items:center;border-radius:4px}.zoom-buttons button:hover{background:#e7ecdf}.zoom-buttons span{height:16px;width:1px;background:#dce0d3;margin:0 3px}.zoom-buttons svg{width:16px;height:16px}#dimensionLabels{position:absolute;inset:0;z-index:2;pointer-events:none;overflow:hidden}.dim-label{position:absolute;white-space:nowrap;transform:translate(-50%,-50%);font-size:10px;font-variant-numeric:tabular-nums;color:#6d7d60;background:#f4f5ecde;border:1px solid #dfe4d6;padding:5px 9px;border-radius:4px;box-shadow:0 1px 3px #263b1d04}.dim-label small{font-size:8px;color:#8a967d;margin-left:4px}.dim-label.entry{background:#536b54e8;border-color:transparent;color:#fff;font-size:9px;padding:4px 7px}.walk-pad{position:absolute;bottom:89px;left:30px;text-align:center;user-select:none}.walk-pad button{width:38px;height:36px;border:1px solid #d0d7c9;background:#f7f9eddf;border-radius:6px;margin:3px;font-size:18px;touch-action:none}.walk-pad button:active{background:#cedbc4}#toast{position:absolute;left:50%;bottom:85px;transform:translate(-50%,10px);opacity:0;pointer-events:none;transition:.2s;background:#3b5040;color:#fff;font-size:11px;border-radius:6px;padding:12px 18px;z-index:6;white-space:nowrap}#toast.show{opacity:1;transform:translate(-50%,0)}dialog{border:1px solid #e0e6d7;box-shadow:0 24px 100px #15240e33;border-radius:12px;background:#fffefa;padding:26px;color:var(--ink);width:min(650px,90vw);max-height:90dvh}dialog::backdrop{background:#25322255;backdrop-filter:blur(6px)}.dialog-heading{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid var(--line)}.dialog-heading h2{font-size:20px;font-weight:500;margin:0}.dialog-heading .eyebrow{font-size:9px;margin-bottom:7px}.dialog-heading button{border:0;background:#f0f2e9;width:32px;height:32px;border-radius:50%;font-size:22px}.reference-content{display:grid;grid-template-columns:1fr 1fr;gap:26px;padding-top:23px}.reference-content img{width:100%;max-height:62dvh;object-fit:contain;border-radius:4px;background:#e8e5dc}.reference-badge{display:inline-block;font-size:9px;letter-spacing:.02em;background:#edf1e5;padding:5px 8px;color:#7d8c6e;border-radius:4px;margin-top:9px}.reference-content h3{font-size:17px;font-weight:500}.reference-content p{font-size:12px;line-height:1.9;color:#7e8c72}.reference-content .muted{font-size:10px;color:#98a08e}.plan-sketch{width:125px;height:190px;display:block;margin:17px auto;stroke-width:2;stroke:#73866b;fill:#e9eedf}.plan-sketch text{stroke:none;fill:#7b8d6f;font-size:10px;text-anchor:middle}.plan-sketch .door-mark{stroke:#fffefa;stroke-width:5}.plan-sketch .door-label{font-size:9px;fill:#a68f6e}.webgl-error{padding:30px;max-width:420px;text-align:center;line-height:1.8}.webgl-error button{margin-top:15px;border:1px solid #b3bea9;background:#fff;padding:10px 20px;border-radius:5px}
@media(min-width:1600px){.layout{grid-template-columns:330px minmax(0,1fr)}.sidebar{padding:38px}.stage-caption{top:95px}.view-top{top:28px}}
@media(max-height:850px) and (min-width:851px){.sidebar{padding-top:24px}.intro .lead{font-size:15px;line-height:1.5}.intro h1{margin-bottom:10px}.measure-card{margin-top:20px;padding:16px 0}.size-main{margin:14px 0}.settings{padding-top:17px}.height-label{margin-top:16px}.toggle-row{margin:12px 0}.sidebar-footer{margin-top:15px}.assumptions{margin-top:12px}}
@media(max-width:850px){.header{height:60px;padding:0 20px}.brand{font-size:15px;gap:9px}.brand-sub{font-size:8px}.version{font-size:10px}.layout{height:auto;min-height:0;display:flex;flex-direction:column}.stage{order:-1;height:65dvh;min-height:430px;width:100%}.sidebar{border-right:0;border-top:1px solid var(--line);padding:26px 24px;overflow:visible;display:grid;grid-template-columns:1fr 1fr;gap:20px 28px}.intro{grid-column:1}.intro h1{font-size:26px}.lead{font-size:14px}.subtitle{font-size:10px}.measure-card{margin:0;padding:0;border:0}.size-main{margin:17px 0}.size-main>strong{font-size:34px}.sizes>div+div{padding-left:14px}.sizes strong{font-size:19px}.settings{grid-column:1/-1;border-top:1px solid var(--line);padding:20px 0 0}.reference-button{grid-column:1/-1}.assumptions{grid-column:1/-1;margin:0}.sidebar-footer{grid-column:1/-1;margin-top:0}.view-top{top:18px;left:18px;right:18px}.view-tabs button{padding:9px 11px;font-size:10px}.stage-caption{top:76px;left:23px;font-size:9px}.bottom-toolbar{left:18px;right:18px;bottom:18px}.instructions{font-size:9px;gap:9px;padding:10px}.instructions span:last-child{display:none}.zoom-buttons button{width:29px;height:30px}.compass{right:22px;bottom:78px}.compass svg{width:33px;height:33px}.dim-label{font-size:9px;padding:4px 6px}.walk-pad{left:18px;bottom:73px}}
@media(max-width:440px){.brand-sub,.brand-sep{display:none}.version{font-size:9px}.sidebar{gap:20px}.sizes span{font-size:9px}.area-note{font-size:9px}.area-note span{display:none}.reference-content{gap:15px}.reference-content h3{font-size:15px}.reference-content p{font-size:11px}.plan-sketch{height:145px;width:100px}dialog{padding:18px}.dim-label small{display:none}}
#viewer>svg{display:block;width:100%;height:100%;touch-action:none;stroke:none;stroke-linecap:butt;stroke-linejoin:miter}
.wall-panel{border-top:1px solid var(--line);margin-top:18px;padding-top:18px}.wall-panel h2{font-size:12px;margin:0 0 10px}.wall-panel p{font-size:10px;color:#88917f;line-height:1.8}.wall-panel strong{font-size:12px;color:#a26b38}#wallLabels{position:absolute;inset:0;pointer-events:none;z-index:3}.wall-tag{position:absolute;transform:translate(-50%,-50%);pointer-events:auto;width:24px;height:24px;border:1px solid #b0bba5;background:#fffff4ef;border-radius:50%;font-size:10px;font-weight:700;box-shadow:0 2px 5px #0001}.wall-tag.selected{background:#cc8b50;color:white;border-color:#b3783d}.dim-label.entry{font-size:9px;opacity:.85}.wall-panel{grid-column:1/-1}
.grid-panel{margin-top:20px;padding:18px 0 0;border-top:1px solid var(--line);grid-column:1/-1}.grid-panel h2{font-size:12px;margin:0 0 10px}.grid-panel p{font-size:10px;color:#88917f;line-height:1.8}.grid-panel strong{font-size:12px;color:#a26b38}#gridLabels{position:absolute;inset:0;pointer-events:none;z-index:2}.grid-cell{position:absolute;transform:translate(-50%,-50%);pointer-events:auto;border:0;background:transparent;color:#5f7056;padding:3px 1px;font-size:8px;line-height:1;font-variant-numeric:tabular-nums;white-space:nowrap;border-radius:3px}.grid-cell:hover,.grid-cell.selected{background:#b27e3d;color:#fff}.grid-cell:focus-visible{outline:2px solid #b27e3d}.wall-tag{width:21px;height:21px;font-size:9px}#gridLabels[hidden]{display:none}

.sidebar>.measure-card:first-child{margin-top:0;padding-top:0;border-top:0}@media(max-width:850px){.sidebar>.measure-card:first-child{grid-column:1/-1}}
.focus-placement{margin-left:auto;margin-right:10px;border:1px solid #fff8;border-radius:6px;background:#f9f9f2e8;font-size:11px;padding:0 13px;height:38px}.focus-placement:hover{background:#e2e8d8}#placementLabels{position:absolute;inset:0;pointer-events:none;z-index:3}#placementLabels[hidden]{display:none}.placement-label{position:absolute;transform:translate(-50%,-50%);white-space:nowrap;font-size:10px;border-radius:3px;padding:4px 6px;background:#435e49e8;color:#fff}.placement-label.desk{font-size:9px;background:#846e4ddd;padding:3px 5px}.placement-label.seat{font-size:8px;padding:2px 4px;background:#ffffeade;color:#52664b}.placement-label[hidden]{display:none}@media(max-width:850px){.focus-placement{font-size:9px;padding:0 7px;margin-right:5px}.view-top{gap:4px}.view-tabs button{padding:9px 7px}}
.study-panel{margin-top:20px;padding-top:17px;border-top:1px solid var(--line);grid-column:1/-1}.study-panel h2{font-size:12px;margin:0 0 10px}.study-panel p{font-size:10px;color:#7e8b73;line-height:1.8}.study-panel button{width:100%;border:1px solid #d4ddca;background:#edf1e6;border-radius:4px;padding:10px;text-align:left;font-size:11px}.placement-label.study{font-size:9px;padding:3px 5px;background:#51654be8}.placement-label.shelf{font-size:8px;padding:2px 4px;background:#faf8e8e8;color:#7b7d67}.placement-label.study-room{writing-mode:vertical-rl;font-size:11px;padding:8px 4px;background:#44634ee8}.focus-placement{margin-left:0}.view-tabs{margin-right:auto}@media(max-width:600px){.view-top{flex-wrap:wrap;justify-content:flex-start;gap:5px}.view-tabs{margin-right:0}.focus-placement{height:32px;padding:0 6px;font-size:9px}.icon-button{height:32px;width:32px;padding:7px}.stage-caption{top:112px}}
.placement-label.passage{background:#ae4f7be8;color:#fff;font-size:11px;padding:5px 9px;border:1px solid #f8d5e5;box-shadow:0 1px 3px #77224412}

/* Compact toggle-only control rail. */
.layout{grid-template-columns:210px minmax(0,1fr)}.sidebar{padding:24px 20px;display:block}.sidebar .settings{margin:0;padding:0;border:0}.sidebar .toggle-row{margin:0;padding:14px 0}.sidebar [hidden]{display:none}@media(max-width:850px){.layout{grid-template-columns:1fr}.sidebar{padding:10px 18px}.sidebar .settings{display:flex;gap:24px;flex-wrap:wrap}.sidebar .toggle-row{gap:14px;padding:5px 0}.stage-caption{top:84px}}