:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Tahoma,sans-serif;color:#173344;background:#eef2f5;font-size:14px;--line:#dbe3e9;--accent:#126d87;--navy:#142e3b}*{box-sizing:border-box}body{margin:0;overflow:hidden}button,input,select{font:inherit}button,.fileButton{min-height:44px;border:1px solid var(--line);border-radius:8px;background:white;color:#244858;padding:9px 13px;cursor:pointer;touch-action:manipulation}button:hover,.fileButton:hover{background:#eef5f8;border-color:#9fb9c5}button:disabled{opacity:.4;cursor:default}button.active{background:#dcedf3;border-color:#72a9b9;color:#075a72}button.primary{background:var(--accent);border-color:var(--accent);color:white;font-weight:600}button.primary:hover{background:#0c5870}button.danger{color:#b13c4b}button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #f2b949;outline-offset:2px}input,select{width:100%;min-height:44px;border:1px solid #cfdae2;border-radius:7px;background:white;padding:9px 10px;color:var(--navy)}input[type=checkbox]{width:18px;min-height:18px;accent-color:var(--accent)}input[type=color]{width:36px;height:36px;min-height:36px;padding:2px;border-radius:50%;flex-shrink:0}input[type=range]{padding:0;accent-color:var(--accent);min-height:32px}label{display:block;font-size:14px;color:#4b6472;margin:12px 0 0}label input,label select{margin-top:5px}header{height:78px;background:var(--navy);color:white;display:flex;align-items:center;gap:24px;padding:0 22px;border-bottom:1px solid #274552}.brand{display:flex;gap:10px;align-items:center;min-width:236px;font-size:14px;letter-spacing:1.4px}.brand b{font-weight:400;color:#87c5d8}.brand small{display:block;font-size:12px;color:#acc2cd;letter-spacing:0;margin-top:4px}.brandmark{font-size:32px;color:#a3dceb}header #projectName{max-width:290px;background:transparent;border:0;color:#f5f8fa;padding-left:0}header #projectName:focus{background:#244655}.headerActions{display:flex;align-items:center;gap:8px;margin-left:auto;white-space:nowrap}.headerActions button{min-width:42px}.headerActions #undo,.headerActions #redo{background:transparent;color:white;border-color:#3b5666;font-size:22px;padding:5px 10px}#saveState{font-size:12px;color:#9ec2ce;margin-right:8px}main{height:calc(100dvh - 78px);display:flex}aside{width:278px;flex-shrink:0;padding:22px 20px;background:#fff;overflow:auto;border-right:1px solid var(--line)}#inspector{width:264px;border-right:0;border-left:1px solid var(--line)}[hidden]{display:none!important}.sectionHead{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:14px}.sectionHead button{font-size:22px;min-height:32px;padding:0 10px}h2{font-size:16px;font-weight:650;margin:0}.tag{font-size:12px;background:#eaf1f5;padding:4px 8px;border-radius:5px;color:#56717e}.two{display:grid;grid-template-columns:1fr 1fr;gap:10px}.full{width:100%;margin-top:14px}.colorRow{display:flex;align-items:center;gap:6px;margin-top:12px;flex-wrap:wrap;color:#4b6472}.swatches{display:flex;gap:3px}.swatches button{min-height:30px;width:27px;padding:0;border:3px solid white;border-radius:50%;box-shadow:0 0 0 1px transparent}.swatches button.chosen{box-shadow:0 0 0 1px #21495d}section{margin-top:25px;padding-top:22px;border-top:1px solid var(--line)}section h2{margin-bottom:10px}.note{font-size:12px;color:#6a7f8c;line-height:1.7;margin:12px 0 0}.fileButton{text-align:center;display:block;font-weight:500;position:relative;margin-top:10px}.fileButton input{position:absolute;width:1px;height:1px;opacity:0;min-height:0;padding:0;left:0;bottom:0}.fileButton:focus-within{outline:3px solid #f2b949}.rangeLabel{display:flex;align-items:center;gap:12px;white-space:nowrap}.rangeLabel input{width:100%;margin:0}.workspace{flex:1;min-width:0;display:flex;flex-direction:column}.toolstrip{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 16px;background:#fff;border-bottom:1px solid var(--line);min-height:65px;flex-wrap:wrap}.toolGroup{display:flex;gap:5px;align-items:center}.toolstrip button{border-color:transparent}.check{display:flex;gap:8px;align-items:center;margin:0;white-space:nowrap}.check input{margin:0}.snapLabel{display:flex;gap:8px;align-items:center;margin:0}.snapLabel select{width:82px;margin:0}#stage{flex:1;position:relative;min-height:120px;overflow:hidden;background:#e8edf0}canvas{display:block;width:100%;height:100%;touch-action:none;outline:none}.canvasInfo{position:absolute;top:15px;left:18px;display:flex;gap:8px;align-items:flex-start;flex-direction:column;pointer-events:none}.canvasInfo span{font-size:12px;background:#ffffffee;border:1px solid #dbe3e9;padding:6px 10px;border-radius:5px;color:#466170}#calibrationBadge{color:#8d6513;background:#fffae9e8;border-color:#e7d6a7}#emptyTip{position:absolute;top:47%;left:50%;transform:translate(-50%,-50%);background:#fffef5f5;border:1px solid #d3dde3;box-shadow:0 6px 30px #17384c12;padding:24px 28px;border-radius:10px;text-align:center;pointer-events:none;max-width:360px;width:80%}#emptyTip>span{display:block;color:#7b9daa;font-size:13px;letter-spacing:2px;margin-bottom:12px}#emptyTip strong{font-size:18px}#emptyTip p{font-size:14px;color:#6a8190;margin-bottom:0}.zoomControls{position:absolute;bottom:20px;right:20px;display:flex;gap:1px;align-items:center;background:white;padding:3px;border-radius:9px;box-shadow:0 3px 15px #253e4e15;border:1px solid var(--line)}.zoomControls button{border:0}.zoomControls span{min-width:55px;text-align:center;font-size:12px;font-variant-numeric:tabular-nums}#scaleBar{position:absolute;bottom:26px;left:22px;text-align:center;font-size:12px;pointer-events:none;color:#244c61}#scaleBar div{height:7px;border:2px solid #244c61;border-top:0;margin-bottom:3px}footer{padding:10px 17px;display:flex;justify-content:space-between;gap:15px;color:#6c808d;background:#f8fafb;font-size:12px;border-top:1px solid var(--line)}#totals{color:#264c60;white-space:nowrap}#buildingList{margin-top:10px;max-height:230px;overflow:auto}.buildingItem{display:flex;align-items:center;gap:10px;width:100%;text-align:left;border:0;margin-top:3px}.buildingItem.selected{background:#e8f3f7}.buildingItem .dot{width:11px;height:24px;border-radius:3px;flex-shrink:0}.buildingItem strong{font-size:14px;display:block;font-weight:500;overflow-wrap:anywhere}.buildingItem small{font-size:12px;color:#6c8390;display:block;margin-top:3px}.buildingItem .locked{margin-left:auto}.listEmpty{font-size:13px;color:#7a8e98;padding:14px 0;line-height:1.7}.eyebrow{font-size:12px;letter-spacing:1px;color:#698897;margin-bottom:16px}.areaCard{padding:14px;background:#eef5f8;border-radius:8px;margin:16px 0 2px}.areaCard small{display:block;color:#6c8491}.areaCard strong{font-size:26px;line-height:1.6;color:#20566c;font-weight:500}.actionRow{margin-top:10px}#inspector .check{margin:16px 0}#measureBadge{position:absolute;top:18px;right:18px;background:#153c50;color:white;border-radius:8px;padding:12px 16px;font-size:16px;box-shadow:0 3px 15px #253e4e15}#mobilePanel{display:none}dialog{border:1px solid var(--line);border-radius:14px;padding:26px;width:440px;max-width:calc(100vw - 28px);max-height:85dvh;color:#244555;box-shadow:0 20px 80px #102f4040}dialog::backdrop{background:#122e4166}dialog hr{border:0;border-top:1px solid var(--line);margin:22px 0}dialog p{line-height:1.7}dialog .note{margin-bottom:15px}#savedList{max-height:240px;overflow:auto}.savedItem{display:flex;align-items:center;gap:8px;margin:7px 0}.savedItem button:first-child{flex:1;text-align:left}.savedItem small{display:block;color:#728795;font-size:12px;margin-top:4px}#toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%) translateY(100px);opacity:0;background:#153c50;color:white;border-radius:8px;padding:12px 20px;max-width:90vw;z-index:30;pointer-events:none;transition:.2s}#toast.show{opacity:1;transform:translateX(-50%)}@media(max-width:1200px){header{gap:12px;padding:0 15px}.brand{min-width:220px}#saveState{display:none}aside{width:248px;padding:18px 15px}#inspector{width:236px;padding:18px 15px}footer span:last-child{display:none}.toolstrip{padding:8px}.toolstrip button{padding:8px}.toolGroup{gap:3px}.check{font-size:13px}}@media(max-width:1000px){header #projectName{max-width:185px}#inspector{position:absolute;right:12px;top:160px;bottom:58px;width:248px;border:1px solid var(--line);border-radius:12px;box-shadow:0 8px 30px #17384c25;z-index:5}header .brand{min-width:192px;font-size:12px}.brandmark{font-size:28px}}@media(max-width:760px){header{height:68px;padding:0 10px}.brand{min-width:0!important}.brand div{font-size:11px}.brand small{display:none}.brandmark{font-size:27px}header #projectName{display:none}.headerActions{gap:4px}.headerActions button{padding:8px;min-width:34px;font-size:12px}main{height:calc(100dvh - 68px)}#sidebar{display:none;position:absolute;left:8px;top:136px;bottom:50px;width:275px;z-index:8;border:1px solid var(--line);border-radius:12px;box-shadow:0 8px 30px #17384c25}#sidebar.open{display:block}#mobilePanel{display:block}.toolstrip{gap:3px}.toolstrip button{font-size:12px;padding:6px;min-height:42px}.toolstrip .check{font-size:12px;gap:3px}.snapLabel{font-size:12px;gap:3px}.snapLabel select{width:67px;padding:5px;min-height:40px}.toolstrip .toolGroup{gap:1px}.canvasInfo{left:10px;top:10px}.canvasInfo span{font-size:12px;max-width:85vw}#inspector{top:142px;bottom:58px;width:240px}.zoomControls{right:10px;bottom:12px}.zoomControls button{padding:6px}#scaleBar{left:12px;bottom:18px}#emptyTip{padding:20px 14px}#emptyTip strong{font-size:16px}footer{padding:8px 12px}.colorRow{gap:6px}#measureBadge{top:86px;right:10px;font-size:14px}}@media(max-width:420px){.toolstrip{justify-content:flex-start}.toolstrip .toolGroup:nth-child(2){margin-left:auto}#mobilePanel{width:100%;text-align:left;border-top:1px solid var(--line)}#sidebar,#inspector{top:180px}.canvasInfo span{max-width:90vw}.brand div{font-size:10px;letter-spacing:.6px}.headerActions #files{max-width:64px;white-space:normal}}