@import url('data:text/css,');
:root{--paper:#f3f1eb;--ink:#26383e;--muted:#899497;--line:#d9ded9;--accent:#a75536;--navy:#182c34;--teal:#7caaa0}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:13px/1.45 'Segoe UI',Arial,sans-serif;overflow:hidden}button,input,select{font:inherit}button{cursor:pointer;transition:background .18s,color .18s;border:1px solid var(--line);background:transparent;color:inherit;border-radius:4px}button:hover{background:#e2e5dc}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:3px}header{height:84px;border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 30px;gap:30px}.brand{display:flex;align-items:center;gap:14px;font-size:20px;font-weight:650;letter-spacing:2px}.mark{font-size:36px;color:var(--accent);font-weight:350;letter-spacing:-6px;margin-right:10px}.subbrand{display:block;font-size:9px;letter-spacing:2.9px;font-weight:500;margin-top:1px}.header-meta{font-size:10px;letter-spacing:1.6px;color:#6c7e81;margin:auto}.live-dot{display:inline-block;width:6px;height:6px;background:var(--teal);border-radius:50%;margin-right:7px}.divider{margin:0 15px;color:#b2bdbb}.quiet{padding:9px 13px;font-size:11px}main{height:calc(100dvh - 84px);display:grid;grid-template-columns:310px 1fr}aside{overflow:auto;padding:29px 24px 20px;display:flex;flex-direction:column;scrollbar-width:thin;scrollbar-color:#bec7c3 transparent;border-right:1px solid var(--line)}.eyebrow{font-size:9px;letter-spacing:2px;font-weight:600}.intro h1{font-size:42px;line-height:1.02;letter-spacing:-2px;font-weight:400;margin:16px 0}.intro p{color:#788589;line-height:1.6;margin:0 0 24px;font-size:12px}.tabs{display:flex;border-bottom:1px solid var(--line);margin-bottom:22px;gap:24px}.tabs button{border:0;border-radius:0;padding:0 0 10px;color:#889493;font-size:12px}.tabs button.active{color:var(--ink);border-bottom:2px solid var(--accent)}.section-label{font-size:9px;letter-spacing:1.5px;display:flex;justify-content:space-between;align-items:center;margin:0 0 13px;font-weight:650}.section-label span{font-size:9px;letter-spacing:0;font-weight:400;color:#8c9696}.preset-grid{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-bottom:23px}.preset{font-size:11px;padding:10px 5px}.preset.active{background:var(--ink);color:#fafbf8;border-color:var(--ink)}.range-label{display:flex;justify-content:space-between;font-size:11px;margin:12px 0 5px}output{color:var(--accent);font-variant-numeric:tabular-nums}input[type=range]{accent-color:var(--accent);width:100%;height:14px;cursor:pointer;margin:0 0 12px}.switch-row{display:flex;align-items:center;justify-content:space-between;font-size:11px;margin:10px 0 23px}.switch{height:19px;width:33px;border:0;background:#cbd0cb;border-radius:20px;padding:3px}.switch span{display:block;width:13px;height:13px;border-radius:50%;background:#fff;transition:transform .2s}.switch.on{background:#507f73}.switch.on span{transform:translateX(14px)}.parts-heading{padding-top:18px;border-top:1px solid var(--line);margin-bottom:8px}.part-tools{display:flex;gap:6px;margin-bottom:12px}.part-tools button{font-size:10px;padding:5px 9px}.part-category{font-size:9px;letter-spacing:1px;color:#85908d;margin:16px 0 5px}.part{display:flex;align-items:center;border-bottom:1px solid #e5e7e0;min-height:33px;gap:5px}.part.hidden-part{color:#a3aaa6}.part.selected{background:#e2e6dd;outline:1px solid #c9d2c6}.part-name{border:0;text-align:left;flex:1;min-width:0;padding:7px 2px;font-size:10px}.part-name span{font-size:9px;color:#a0a6a2;margin-right:8px}.eye{border:0;width:26px;font-size:14px;padding:4px}.sidebar-foot{border-top:1px solid var(--line);padding-top:20px;margin-top:25px;font-size:8px;letter-spacing:1px;color:#9aa49f}.sidebar-foot span{margin:0 6px}.finish-options{display:grid;gap:7px}.finish{display:flex;align-items:center;gap:10px;padding:10px;font-size:11px}.finish.active{border-color:var(--accent);background:#e8e7dd}.swatch{width:28px;height:28px;border-radius:50%}.birch{background:repeating-linear-gradient(8deg,#c4a174 0px,#dcc69f 2px,#dec9a5 5px)}.black{background:repeating-linear-gradient(28deg,#26302e 0px,#202725 1px,#37413d 2px)}.small-note{font-size:10px;line-height:1.65;color:#87918d;margin:13px 0 24px}label{font-size:11px}select{width:100%;padding:10px;border:1px solid var(--line);background:#f6f5ef;color:var(--ink);border-radius:4px;margin-top:7px;margin-bottom:12px}#viewport{position:relative;overflow:hidden;background:#dce3df}canvas{width:100%;height:100%;display:block;touch-action:none}.viewport-heading{position:absolute;left:34px;top:30px;pointer-events:none}.viewport-heading .eyebrow{color:#738984}.viewport-heading h2{font-weight:350;font-size:25px;letter-spacing:-.7px;margin:7px 0 2px}.viewport-heading>span:last-child{color:#8b9994;font-size:11px}.view-controls{position:absolute;right:26px;top:28px;display:flex;gap:4px}.view-controls button{background:#f3f4edb0;backdrop-filter:blur(8px);font-size:10px;padding:8px 10px;border-color:#cbd6cd}.bottom-bar{position:absolute;bottom:0;left:0;right:0;height:56px;display:flex;justify-content:space-between;align-items:center;padding:0 28px;border-top:1px solid #bfcfc180;background:#f0f2e8a6;backdrop-filter:blur(10px)}.interaction-hint{font-size:10px;color:#778b82;display:flex;align-items:center;gap:10px}.interaction-hint>span{font-size:19px;color:#5c7769}.interaction-hint i{font-style:normal;opacity:.6}.scale-badge{font-size:8px;color:#7a8d82;letter-spacing:1px}.scale-badge b{display:inline-block;font-size:10px;color:#405c50;border-left:1px solid #bdcbc0;padding-left:14px;margin-left:14px;font-weight:450}#selection{position:absolute;bottom:77px;left:26px;right:26px;max-width:560px;padding:17px 20px;background:#f6f6eefa;border:1px solid #c7d3c6;box-shadow:0 8px 35px #19362a12;border-radius:6px;display:flex;gap:15px;align-items:center}#selection[hidden]{display:none}#selection .eyebrow{font-size:8px;color:#849086}#selection h3{font-size:14px;font-weight:550;margin:3px 0}#selection p{font-size:10px;color:#8b948c;margin:0}.selection-actions{margin-left:auto;display:flex;gap:4px;flex-wrap:wrap;justify-content:end}.selection-actions button{font-size:10px;padding:6px 8px}#remove{color:var(--accent)}.zoom-controls{position:absolute;right:26px;bottom:80px;display:flex;flex-direction:column;background:#f5f6eec9;border:1px solid #c8d4ca;border-radius:5px;overflow:hidden}.zoom-controls button{width:34px;height:34px;border:0;border-radius:0;font-size:20px;font-weight:300}.zoom-controls button+button{border-top:1px solid #c8d4ca}.model-badge{position:absolute;bottom:78px;left:29px;font-size:8px;letter-spacing:1.2px;color:#748c7e;pointer-events:none}.model-badge .muted{opacity:.7}body.has-selection .model-badge{display:none}#toast{position:absolute;left:50%;bottom:82px;transform:translateX(-50%);background:#263e32eb;color:white;border-radius:4px;padding:8px 13px;font-size:11px;opacity:0;pointer-events:none;transition:opacity .2s}#toast.show{opacity:1}dialog{max-width:630px;width:calc(100vw - 40px);border:1px solid #cfd7cd;border-radius:9px;padding:38px;background:var(--paper);color:var(--ink);max-height:88vh;box-shadow:0 20px 100px #132c2a40}dialog::backdrop{background:#162e2d66;backdrop-filter:blur(5px)}dialog h2{font-size:32px;font-weight:400;line-height:1.1;letter-spacing:-1px;margin:18px 0 22px}dialog p{color:#71817a;font-size:12px;line-height:1.7}#closeNotes{position:absolute;right:15px;top:15px;border:0;font-size:24px}.source-links{display:grid;gap:8px;margin:20px 0}.source-links a{color:#8d5137;font-size:11px;text-decoration:none}.source-links a:hover{text-decoration:underline}#webglError{position:absolute;top:45%;padding:30px;color:#a34d32;background:#fff}#webglError[hidden]{display:none}
@media(min-width:1500px){main{grid-template-columns:340px 1fr}aside{padding:33px 30px}.intro h1{font-size:49px}}@media(max-height:850px){.intro h1{font-size:33px;margin:12px 0}.intro p{margin-bottom:16px}.intro{margin-bottom:0}aside{padding-top:20px}.tabs{margin-bottom:17px}.preset-grid{margin-bottom:14px}.switch-row{margin-bottom:17px}}@media(max-width:1000px){.header-meta{display:none}header .quiet{margin-left:auto}.view-controls{top:115px;left:25px;right:auto}.interaction-hint{font-size:9px;gap:5px}.scale-badge{display:none}}@media(max-width:700px){header{height:66px;padding:0 17px}.brand{font-size:15px}.mark{font-size:27px}.subbrand{font-size:7px}main{height:calc(100dvh - 66px);grid-template-columns:1fr;grid-template-rows:minmax(320px,58%) 1fr}aside{grid-row:2;padding:16px 20px;overflow:auto;border-right:0;border-top:1px solid var(--line)}.intro{display:none}.tabs{position:sticky;top:-16px;padding-top:12px;background:var(--paper);z-index:2}.preset-grid{grid-template-columns:repeat(4,1fr)}#viewport{grid-row:1}.viewport-heading{left:20px;top:18px}.viewport-heading h2{font-size:20px}.view-controls{left:auto;right:14px;top:18px;gap:2px;max-width:150px;flex-wrap:wrap;justify-content:end}.view-controls button{font-size:9px;padding:5px 7px}.bottom-bar{height:38px;padding:0 16px}.interaction-hint{font-size:8px}.zoom-controls{right:15px;bottom:53px}.model-badge{left:18px;bottom:51px;font-size:6px}#selection{bottom:47px;left:12px;right:57px;padding:10px;gap:5px}#selection h3{font-size:11px}.selection-actions button{font-size:9px;padding:4px 5px}#selection p{display:none}.sidebar-foot{margin-top:20px}dialog{padding:26px}dialog h2{font-size:27px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}
/* Surface measurements: quiet technical instruments, visible at ultra zoom. */
.tabs{gap:20px}.measurement-service,.measurement-toggle{width:100%;padding:11px 12px;text-align:left;font-size:11px}.measurement-service{border-color:#becbc1;background:#e7ede4}.measure-intro{margin:10px 0 16px}.measurement-toggle{background:#263e32;color:#fff;border-color:#263e32;text-align:center}.measurement-toggle:hover{background:#345541}.measurement-toggle.active{background:#a75536;border-color:#a75536}.measurement-toggle.active:hover{background:#91452a}.measurement-status{font-size:11px;line-height:1.55;color:#506c5a;min-height:35px;margin:11px 0 8px}.measurement-cancel{font-size:10px;padding:6px 9px}.measurement-list-heading{border-top:1px solid var(--line);padding-top:20px;margin-top:20px}.measurement-empty{font-size:11px;color:#8a968d;line-height:1.6;border:1px dashed #cbd4ca;border-radius:5px;padding:14px}.measurement-card{border:1px solid #cdd7cc;border-left:3px solid var(--measure-color);border-radius:4px;margin:10px 0;background:#f7f7ef;padding:10px 11px}.measurement-card-head{display:flex;align-items:center;justify-content:space-between;gap:7px}.measurement-card-head strong{font-size:13px;font-weight:600;color:var(--measure-color);font-variant-numeric:tabular-nums}.measurement-card-head button{font-size:19px;border:0;line-height:1;padding:2px 5px}.measurement-names{font-size:9px;line-height:1.5;color:#71816f;margin:6px 0 9px;overflow-wrap:anywhere}.measurement-axes{display:grid;grid-template-columns:repeat(3,1fr);gap:5px;margin:0;padding-top:7px;border-top:1px solid #e1e5db}.measurement-axes dt{font-size:8px;color:#7c8a7c}.measurement-axes dd{margin:2px 0 0;font-size:11px;font-variant-numeric:tabular-nums}.measurement-visibility{font-size:9px;color:#a75536;line-height:1.45;margin:8px 0 0}.measurement-unavailable{background:transparent}.measurement-unavailable .measurement-card-head strong{color:#89968c}.measurement-tools{display:flex;gap:7px;margin-top:14px}.measurement-tools button{font-size:10px;padding:8px 10px}button:disabled{opacity:.45;cursor:default}button:disabled:hover{background:transparent}input:disabled{opacity:.45}.measurement-disclaimer{margin:14px 0}.measure-key{font-size:9px;margin:10px 0 0}.measurement-overlay{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:3}.measurement-label{position:absolute;left:0;top:0;white-space:nowrap;display:block;line-height:1.3;font-size:10px;box-shadow:0 2px 8px #173d2830;color:var(--measure-color);border:1px solid var(--measure-color);background:#f6fff4ed;will-change:transform}.measurement-label[hidden]{display:none}.measurement-label.endpoint{border-radius:20px;padding:2px 5px;font-size:8px;font-weight:650;min-width:23px;text-align:center}.measurement-label.distance{padding:4px 7px;border-radius:4px;font-weight:650;font-variant-numeric:tabular-nums;margin-top:-18px}.measurement-active .model-badge{display:none}canvas.measuring{cursor:crosshair!important}.measurement-active .viewport-heading{max-width:320px}.measurement-active .viewport-heading h2{font-size:22px}.measurement-active .view-controls,.zoom-controls,#toast,#selection{z-index:4}#measurementMethodNote{margin:0 0 15px;min-height:49px}#measurements[hidden]{display:none}@media(max-width:700px){.measurement-service,.measurement-toggle{min-height:40px}.measurement-card-head button{min-width:32px;min-height:30px}.measurement-label.distance{font-size:9px}.measurement-active .viewport-heading{max-width:210px}.measurement-active .viewport-heading h2{font-size:17px}.measurement-active #viewSubtitle{font-size:9px;display:block;max-width:180px}.measurement-axes dt{font-size:9px}.measurement-axes dd{font-size:12px}}
.measurement-leaders{position:absolute;inset:0;width:100%;height:100%;overflow:hidden;pointer-events:none}.measurement-leaders line{stroke-width:1.2;stroke-dasharray:3 2;opacity:.85;vector-effect:non-scaling-stroke}.measurement-label.distance{margin-top:0}.measurement-active .viewport-heading{padding:12px 16px;background:#f3f5edeb;border:1px solid #bdcec3b3;border-radius:5px;backdrop-filter:blur(5px);box-shadow:0 3px 15px #10241c0d}.measurement-active .viewport-heading .eyebrow{color:#4c6a5b}.measurement-active #viewSubtitle{color:#546b5c}@media(max-width:700px){.measurement-active .viewport-heading{padding:8px 10px;left:12px;top:12px;max-width:195px}.measurement-active .viewport-heading h2{font-size:16px}}

/* Responsive shell and persistent maker credit. */
:root{--header-size:84px}
html,body{width:100%;height:100%;overscroll-behavior:none}
header{height:calc(var(--header-size) + env(safe-area-inset-top));padding-top:env(safe-area-inset-top);gap:22px}
.brand{flex-shrink:0}
.header-actions{display:flex;align-items:center;justify-content:flex-end;gap:18px;margin-left:auto;flex-shrink:0}
.header-actions .quiet{margin-left:0;white-space:nowrap}
.maker-credit{display:block;align-content:center;min-height:44px;color:#687a72;text-decoration:none;white-space:nowrap;font-size:11px;line-height:1.35;letter-spacing:.1px}
.maker-credit strong{font-weight:650;color:#8b5037}
.maker-credit:hover strong{text-decoration:underline;text-underline-offset:3px}
main{height:calc(100dvh - var(--header-size) - env(safe-area-inset-top));min-width:0;min-height:0;grid-template-columns:310px minmax(0,1fr)}
aside,#viewport,.tab-content{min-width:0;min-height:0}
aside{overscroll-behavior:contain;-webkit-overflow-scrolling:touch;scroll-padding-top:62px;padding-bottom:max(20px,env(safe-area-inset-bottom))}
.tabs{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(0,1fr);gap:0;flex-shrink:0;min-width:0}
.tabs button{min-width:0;min-height:40px;padding:6px 2px 10px;font-size:11px;white-space:nowrap}
.tab-content{flex-shrink:0;width:100%;max-width:100%}
.tab-content[hidden]{display:none}
.section-label{gap:8px;flex-wrap:wrap}
.section-label span{overflow-wrap:anywhere}
.part-name,.measurement-card,.small-note,.measurement-status{overflow-wrap:anywhere}
.part-name{line-height:1.45}
.part-tools,.measurement-tools{flex-wrap:wrap}
input,select{max-width:100%;min-width:0}
#selection{right:82px}
#selection>div:first-child{min-width:0}
#selectionName,#selectionInfo{overflow-wrap:anywhere}
.view-controls,.zoom-controls{z-index:5}
.measurement-active .view-controls,.measurement-active .zoom-controls{z-index:5}
#toast{max-width:calc(100% - 30px);text-align:center;overflow-wrap:anywhere}
.source-links a{overflow-wrap:anywhere;padding:4px 0}
dialog{max-height:calc(100dvh - 32px);overscroll-behavior:contain;scrollbar-width:thin}
@media(min-width:1500px){main{grid-template-columns:340px minmax(0,1fr)}}
@media(max-width:1180px){.header-meta{display:none}.header-actions{margin-left:auto}}

/* Touch hit areas stay generous without enlarging the switch artwork. */
@media(pointer:coarse),(max-width:1024px){
 button{min-height:44px}
 .tabs button{min-height:44px}
 .part{min-height:46px}.part-name{font-size:11px;padding:9px 2px}.eye{width:44px;flex:0 0 44px;font-size:17px}
 .part-tools button,.measurement-tools button{padding:8px 12px;font-size:11px}
 .preset{font-size:11px;padding:9px 5px}
 input[type=range]{height:40px;margin:0 0 8px;touch-action:pan-x}
 select{min-height:44px;font-size:16px}
 .switch-row{min-height:44px;gap:12px;margin:6px 0 16px}
 .switch{position:relative;flex:0 0 48px;width:48px;height:44px;padding:0;background:transparent!important}
 .switch::before{content:"";position:absolute;left:3px;top:11px;width:42px;height:22px;border-radius:22px;background:#cbd0cb}
 .switch.on::before{background:#507f73}
 .switch span{position:absolute;left:6px;top:14px;width:16px;height:16px}
 .switch.on span{transform:translateX(20px)}
 .view-controls button{min-width:44px;min-height:44px;padding:8px 9px;font-size:11px}
 .zoom-controls button{width:44px;height:44px}
 .selection-actions button{min-height:44px;padding:8px;font-size:11px}
 .measurement-card-head button{min-width:44px;min-height:44px}
 .measurement-service,.measurement-toggle,.measurement-cancel{min-height:44px;font-size:12px}
 #closeNotes{min-width:44px;min-height:44px;right:9px;top:9px}
}

/* Tablet: camera controls sit below the model instead of covering its title. */
@media(min-width:701px) and (max-width:1100px){
 main{grid-template-columns:280px minmax(0,1fr)}
 aside{padding-left:20px;padding-right:20px}
 .view-controls{top:auto;bottom:72px;left:20px;right:20px;max-width:none;flex-wrap:nowrap;justify-content:flex-start;gap:5px}
 .view-controls button{flex:1;min-width:0;padding-left:6px;padding-right:6px}
 .zoom-controls{right:18px;bottom:132px}
 #selection{bottom:128px;left:18px;right:74px;flex-direction:column;align-items:stretch;padding:12px;gap:8px}
 .selection-actions{margin-left:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px}
 .selection-actions button{min-width:0;padding-left:3px;padding-right:3px;font-size:10px}
 .model-badge{bottom:127px;left:21px;font-size:7px;max-width:calc(100% - 90px)}
 .bottom-bar{padding:0 18px}.interaction-hint{font-size:8px;gap:5px}
 .interaction-hint i{display:none}
 #toast{bottom:132px}
}

/* Portrait phones: canvas above, independently scrolling tools below. */
@media(max-width:700px){
 :root{--header-size:64px}
 header{padding-left:max(14px,env(safe-area-inset-left));padding-right:max(14px,env(safe-area-inset-right));gap:10px}
 .brand{gap:9px;font-size:15px;letter-spacing:1.5px}.mark{font-size:28px;margin-right:7px}.subbrand{font-size:6.7px;letter-spacing:2px}
 .header-actions{gap:10px}.header-actions .quiet{width:44px;padding:7px;font-size:17px}.notes-label{display:none}
 .maker-credit{font-size:10px;min-width:76px;text-align:right;line-height:1.25}
 .maker-credit strong{display:block;font-size:12px;letter-spacing:.15px}
 main{grid-template-columns:minmax(0,1fr);grid-template-rows:minmax(265px,57%) minmax(0,1fr)}
 aside{grid-column:1;grid-row:2;padding:0 16px 22px;border-top:1px solid var(--line)}
 #viewport{grid-column:1;grid-row:1}
 .tabs{position:sticky;top:0;margin:0 0 15px;padding:7px 0 0;z-index:6;background:var(--paper);box-shadow:0 -1px var(--paper)}
 .tabs button{font-size:11px;letter-spacing:0;padding:6px 1px 9px}
 .preset-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}
 .section-label{font-size:9px;line-height:1.5}
 .small-note{font-size:11px;line-height:1.6}
 .viewport-heading{left:16px;right:16px;top:15px;max-width:calc(100% - 32px)}
 .viewport-heading .eyebrow{font-size:7px;letter-spacing:1.4px}
 .viewport-heading h2{font-size:20px;line-height:1.2;margin:5px 0 3px}
 .viewport-heading>span:last-child{display:block;font-size:10px;max-width:100%}
 .measurement-active .viewport-heading{left:12px;right:12px;top:12px;max-width:calc(100% - 24px);padding:8px 10px}
 .measurement-active .viewport-heading h2{font-size:17px;margin:3px 0}
 .measurement-active #viewSubtitle{max-width:100%;font-size:10px;line-height:1.35}
 .view-controls{top:auto;bottom:46px;left:12px;right:12px;max-width:none;flex-wrap:nowrap;justify-content:space-between;gap:4px}
 .view-controls button{flex:1;min-width:0;min-height:44px;padding:7px 3px;font-size:10px}
 .zoom-controls{top:95px;bottom:auto;right:12px}.zoom-controls button{width:44px;height:44px}
 .bottom-bar{height:36px;padding:0 12px;gap:6px;overflow:hidden}
 .interaction-hint{font-size:0;gap:0}.interaction-hint>*{display:none}
 .interaction-hint::after{content:"Drag to orbit · Pinch to zoom · Two fingers to pan";font-size:8px;line-height:1.4;color:#637b6e}
 .scale-badge{display:none}
 .model-badge{left:14px;bottom:101px;max-width:calc(100% - 28px);font-size:6px;letter-spacing:.8px}
 #selection{bottom:100px;left:12px;right:66px;max-width:none;display:flex;flex-direction:column;align-items:stretch;gap:8px;padding:10px}
 #selection[hidden]{display:none}
 #selection h3{font-size:12px;line-height:1.35;margin:3px 0 0}
 #selection p{display:none}
 .selection-actions{margin-left:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px}
 .selection-actions button{min-width:0;min-height:40px;padding:6px 2px;font-size:10px}
 #toast{bottom:102px;font-size:10px}
 .sidebar-foot{font-size:8px;line-height:1.6;padding-bottom:env(safe-area-inset-bottom)}
 dialog{width:calc(100vw - 24px);padding:26px 20px;max-height:calc(100dvh - 24px)}
 dialog h2{font-size:26px;padding-right:10px}
 .measurement-axes{gap:4px}.measurement-axes dd{font-size:11px}
 .measurement-tools{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
 .measurement-tools button{padding:8px 5px}
}
@media(max-width:360px){
 header{padding-left:10px;padding-right:10px;gap:5px}.header-actions{gap:4px}
 .brand{font-size:14px;gap:7px}.mark{font-size:25px;margin-right:5px}.subbrand{font-size:6px;letter-spacing:1.65px}
 .maker-credit{min-width:72px;font-size:9px}.maker-credit strong{font-size:11px}
 aside{padding-left:12px;padding-right:12px}.tabs button{font-size:10px}
 .viewport-heading h2{font-size:18px}.viewport-heading>span:last-child{font-size:9px}
 .interaction-hint::after{font-size:7.2px}
}

/* Short landscape windows keep both canvas and tools reachable. */
@media(max-height:560px) and (min-aspect-ratio:1/1) and (max-width:1200px){
 :root{--header-size:54px}
 header{padding-left:14px;padding-right:14px;gap:12px}.brand{font-size:14px}.mark{font-size:25px}.subbrand{font-size:6px}
 .header-meta{display:none}.header-actions{gap:10px}.header-actions .quiet{width:44px;padding:6px;font-size:17px}.notes-label{display:none}
 .maker-credit{font-size:10px;line-height:1.2;text-align:right}.maker-credit strong{display:block;font-size:11px}
 main{grid-template-columns:minmax(210px,30%) minmax(0,1fr);grid-template-rows:minmax(0,1fr)}
 aside{grid-column:1;grid-row:1;padding:0 14px 18px;border-top:0;border-right:1px solid var(--line)}
 #viewport{grid-column:2;grid-row:1}.intro{display:none}
 .tabs{position:sticky;top:0;z-index:6;padding:4px 0 0;margin:0 0 13px;background:var(--paper)}
 .tabs button{font-size:9px;min-height:40px;padding:6px 1px}
 .preset-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .viewport-heading{top:10px;left:12px;right:12px;max-width:calc(100% - 24px)}
 .viewport-heading .eyebrow{display:none}.viewport-heading h2{font-size:17px;margin:0 0 2px}.viewport-heading>span:last-child{font-size:9px}
 .view-controls{top:auto;bottom:36px;left:10px;right:10px;max-width:none;flex-wrap:nowrap;gap:4px}
 .view-controls button{flex:1;min-width:0;min-height:40px;padding:4px 2px;font-size:10px}
 .zoom-controls{top:65px;bottom:auto;right:10px}.zoom-controls button{width:40px;height:40px;min-height:40px}
 .bottom-bar{height:28px;padding:0 10px}.interaction-hint{font-size:0;gap:0}.interaction-hint>*{display:none}
 .interaction-hint::after{content:"Drag to orbit · Pinch / scroll to zoom";font-size:8px}
 .scale-badge,.model-badge{display:none}
 #selection{bottom:83px;left:10px;right:59px;padding:9px;gap:4px;max-width:none;flex-direction:column;align-items:stretch}
 #selection .eyebrow{display:none}#selection h3{font-size:11px;margin:0}#selection p{display:none}
 .selection-actions{margin-left:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:3px}
 .selection-actions button{min-width:0;min-height:36px;padding:4px 2px;font-size:9px}
 .measurement-active .viewport-heading{left:10px;right:58px;top:8px;max-width:none;padding:6px 8px}
 .measurement-active .viewport-heading h2{font-size:14px}.measurement-active #viewSubtitle{font-size:9px;max-width:none}
 #toast{bottom:84px}
}
@media(max-width:479px) and (max-height:480px){
 html,body{height:auto;min-height:100%;overflow:auto}
 main{height:auto;min-height:calc(100dvh - var(--header-size));grid-template-columns:minmax(0,1fr);grid-template-rows:270px auto}
 #viewport{grid-column:1;grid-row:1;min-height:270px}
 aside{grid-column:1;grid-row:2;overflow:visible;max-height:none;border-top:1px solid var(--line);border-right:0;padding:0 12px 22px}
 .tabs{position:relative}
}