*{box-sizing:border-box;margin:0;padding:0}:root{--bg: #16181d;--panel: #1e2129;--panel2: #262a34;--line: #333845;--text: #e8eaf0;--muted: #9aa1b0;--accent: #4f8ef7;--danger: #e05b5b}html,body,#app{height:100%}body{font:13px/1.45 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);overflow:hidden}#app{display:flex;flex-direction:column}#shell{flex:1;min-height:0;display:flex;flex-direction:row}#rail{--rail-btn: 46px;--rail-gap: 6px;flex:none;width:calc(var(--rail-btn) + 22px);background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;align-items:center;gap:var(--rail-gap);padding:var(--rail-gap) 0}.rail-sep{width:calc(var(--rail-btn) * .65);height:1px;background:var(--line);flex:none;margin:1px 0}.rail-btn{position:relative;flex:none;width:var(--rail-btn);height:var(--rail-btn);padding:0;border:1px solid var(--line);border-radius:50%;background:var(--panel2);color:var(--text);display:flex;align-items:center;justify-content:center;font-size:calc(var(--rail-btn) * .37);line-height:1;transition:border-color .12s ease,background .12s ease,color .12s ease}.rail-btn svg,.rail-btn i{width:1em;height:1em;pointer-events:none}.rail-btn:hover{border-color:var(--accent)}.rail-btn.active{background:var(--accent);border-color:var(--accent);color:#fff}.rail-btn.disabled{color:var(--muted);opacity:.5;cursor:default}.rail-btn.disabled:hover{border-color:var(--line)}.rail-btn:disabled{color:var(--muted);opacity:.4;cursor:default}.rail-btn:disabled:hover{border-color:var(--line)}.rail-group{position:relative;flex:none;display:flex}.rail-flyout{position:absolute;left:calc(100% + 10px);top:50%;transform:translateY(-50%);display:flex;gap:8px;padding:6px;z-index:25;background:#1e2129f5;border:1px solid var(--line);border-radius:999px;box-shadow:0 6px 20px #00000073}.rail-flyout[hidden]{display:none}.rail-group.open>.rail-btn .rail-label{display:none}.rail-label{position:absolute;left:calc(100% + 9px);top:50%;transform:translateY(-50%);background:#1e2129f5;border:1px solid var(--line);border-radius:6px;padding:4px 9px;font-size:12px;color:var(--text);white-space:nowrap;pointer-events:none;z-index:30;opacity:0;transition:opacity .12s ease}.rail-btn:hover .rail-label{opacity:1}.rail-btn.disabled .rail-label,.rail-btn:disabled .rail-label{color:var(--muted)}.rail-label.below{left:50%;top:calc(100% + 9px);transform:translate(-50%)}#topbar{display:flex;align-items:center;gap:8px;padding:8px 12px;background:var(--panel);border-bottom:1px solid var(--line);flex:none}.brand{display:flex;align-items:center;gap:8px;font-family:Inter,Avenir Next,Helvetica Neue,Arial,sans-serif;font-size:15px;letter-spacing:-.02em;white-space:nowrap;-webkit-user-select:none;user-select:none}.brand svg,.brand i{font-size:18px;color:var(--accent);flex:none}.brand b{font-weight:800;color:var(--text)}.brand span{font-weight:300;color:var(--muted)}.app-version{display:inline-flex;align-items:center;gap:6px;font-size:11px;color:var(--muted);white-space:nowrap;-webkit-user-select:none;user-select:none;cursor:default}.app-version[hidden]{display:none}.app-version .sha{opacity:.75}.app-version .env{text-transform:uppercase;letter-spacing:.5px;font-size:10px;font-weight:700;padding:1px 6px;border-radius:999px}.app-version.env-dev .env{color:#e8b44f;border:1px solid #b5892e88;background:#e8b44f14}.project-name{background:transparent;border:1px solid transparent;border-radius:6px;color:var(--muted);padding:4px 8px;width:180px;font-size:13px}.project-name:hover,.project-name:focus{border-color:var(--line);color:var(--text);outline:none}.spacer{width:8px}.grow{flex:1}button{background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:6px;padding:5px 12px;font-size:13px;cursor:pointer}button:hover{border-color:#4a5163}button.ghost{background:transparent;border-color:transparent}button.danger-ghost{background:transparent;color:var(--muted)}button.danger-ghost:hover{color:var(--danger);border-color:var(--danger)}button.danger{background:transparent;color:var(--danger);border-color:var(--danger)}button.primary{background:var(--accent);border-color:var(--accent);color:#fff}.menu{position:relative}.menu-drop{position:absolute;top:calc(100% + 4px);left:0;z-index:40;min-width:150px;background:#1e2129f5;border:1px solid var(--line);border-radius:8px;padding:4px;box-shadow:0 8px 24px #00000073;display:flex;flex-direction:column}.menu-drop[hidden]{display:none}.menu-drop button{background:transparent;border:none;border-radius:5px;display:flex;align-items:center;gap:10px;text-align:left;padding:7px 10px;white-space:nowrap}.menu-drop button svg,.menu-drop button i{width:15px;height:1em;flex:none;font-size:13px;color:var(--muted)}.menu-drop button:hover svg,.menu-drop button:hover i{color:#fff}.menu-drop button:hover{background:var(--accent);color:#fff}.menu-sep{height:1px;background:var(--line);margin:4px 2px}.menu-head{padding:5px 10px 7px;margin-bottom:3px;border-bottom:1px solid var(--line);color:var(--muted);font-size:11px;white-space:nowrap}.menu-head b{color:var(--text);font-size:12px}#btnAccount.open{border-color:var(--accent)}#btnAccount.open svg,#btnAccount.open i{color:var(--text)}#btnFile{display:flex;align-items:center;gap:7px}#btnFile svg,#btnFile i{font-size:13px;color:var(--muted)}#btnFile:hover svg,#btnFile:hover i,#btnFile.open svg,#btnFile.open i{color:var(--text)}#btnFile.open{border-color:var(--accent)}.seg{display:flex;flex:none;border:1px solid var(--line);border-radius:6px;overflow:hidden}.seg button{border:none;border-radius:0;background:transparent;padding:5px 14px}.seg button.active{background:var(--accent);color:#fff}#canvasBar{position:absolute;left:50%;bottom:12px;transform:translate(-50%);z-index:6;display:flex;align-items:center;gap:3px;padding:4px;background:#1e2129f0;border:1px solid var(--line);border-radius:999px;box-shadow:0 4px 16px #00000059}#canvasBar[hidden]{display:none}#levelBar{position:absolute;left:50%;top:12px;transform:translate(-50%);z-index:6;display:flex;align-items:center;gap:4px;padding:4px;background:#1e2129f0;border:1px solid var(--line);border-radius:999px;box-shadow:0 4px 16px #00000059}#levelBar[hidden]{display:none}#levelBar .menu-drop{min-width:100%}#btnLevelPick{padding-left:13px}#btnLevelPick.open{background:var(--panel2);color:var(--text)}#btnLevelPick #levelPickLabel{font-weight:500;color:var(--text)}.cbar-caret{font-size:10px!important;opacity:.6}.cbar-group{display:flex;align-items:center;gap:3px}.cbar-units{display:flex;align-items:center;gap:2px;padding:0 2px}.cbar-unit{background:transparent;border:1px solid transparent;border-radius:999px;padding:4px 9px;font-size:11px;color:var(--muted);white-space:nowrap}.cbar-unit:hover{color:var(--text);background:var(--panel2)}.cbar-unit.active{background:var(--accent);color:#fff}.cbar-unit.active:hover{background:var(--accent)}.cbar-sep{width:1px;align-self:stretch;background:var(--line);margin:2px 4px}.cbar-btn{display:flex;align-items:center;gap:6px;background:transparent;border:1px solid transparent;border-radius:999px;padding:5px 12px;font-size:12px;color:var(--muted);white-space:nowrap}.cbar-btn svg,.cbar-btn i{font-size:12px}.cbar-btn.cbar-icon{padding:5px 9px}.cbar-btn.cbar-icon svg,.cbar-btn.cbar-icon i{font-size:13px}.cbar-btn:hover{color:var(--text);background:var(--panel2);border-color:transparent}.cbar-btn.active{background:var(--accent);color:#fff}.cbar-btn.active:hover{background:var(--accent)}.cbar-btn.disabled,.cbar-btn.disabled:hover{opacity:.38;background:transparent;color:var(--muted);cursor:default}.icon-btn{display:flex;align-items:center;gap:7px}.icon-btn svg,.icon-btn i{font-size:14px;color:var(--muted)}.icon-btn:hover svg,.icon-btn:hover i{color:var(--text)}.chk{display:flex;align-items:center;gap:5px;color:var(--muted);-webkit-user-select:none;user-select:none;cursor:pointer}#levelSelect{background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:6px;padding:5px 8px;font-size:13px;max-width:140px}.lvl-head-row,.lvl-row{display:grid;grid-template-columns:1fr 110px 28px;gap:8px;align-items:center;margin-bottom:6px}.lvl-head-row{color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.6px}.lvl-row input{background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:5px;padding:5px 8px;font-size:13px;min-width:0}.lvl-row input:focus{outline:none;border-color:var(--accent)}.lvl-row.active input:first-child{border-color:var(--accent)}#main{flex:1;display:flex;min-height:0}#viewport{flex:1;position:relative;min-width:0}#plan{position:absolute;inset:0;width:100%;height:100%;display:block;cursor:default}#view3d{position:absolute;inset:0}#view3d canvas{display:block}#sidebar{width:290px;flex:none;background:var(--panel);border-left:1px solid var(--line);display:flex;flex-direction:column;overflow-y:auto}#outliner{border-bottom:1px solid var(--line);padding:10px}#outliner h3,#inspector h3{font-size:11px;text-transform:uppercase;letter-spacing:.8px;color:var(--muted);margin:8px 0 6px}#outliner h3.sec-head{display:flex;align-items:center;gap:6px;cursor:pointer;-webkit-user-select:none;user-select:none;padding:3px 4px;border-radius:5px;margin:8px 0 4px}#outliner h3.sec-head:hover{background:var(--panel2);color:var(--text)}.sec-tw{font-size:9px;width:9px;flex:none}.sec-count{margin-left:auto;font-size:10px;letter-spacing:0;background:var(--panel2);border-radius:9px;padding:1px 7px}.tree-row{display:flex;align-items:center;gap:6px;padding:4px 8px;border-radius:5px;cursor:pointer;color:var(--text)}.tree-row:hover{background:var(--panel2)}.tree-row.selected{background:#4f8ef738}.tree-row .dims{margin-left:auto;color:var(--muted);font-size:11px}.tree-row .swatch{width:10px;height:10px;border-radius:3px;flex:none}.tree-row.ghosted>*:not(.eye){opacity:.4}.tree-row.sub{margin-left:18px}.tree-row .eye{background:none;border:none;padding:0 2px;cursor:pointer;color:var(--muted);font-size:13px;line-height:1;flex:none}.tree-row .eye:hover{color:var(--accent)}#inspector{padding:10px;flex:1}.insp-empty{color:var(--muted);padding:12px 4px}.insp-head{display:flex;align-items:center;justify-content:space-between}.units-seg button{padding:2px 8px;font-size:11px}.field{display:flex;align-items:center;margin-bottom:7px;gap:8px}.field label{width:82px;flex:none;color:var(--muted)}.field input[type=text],.field input[type=number],.field select{flex:1;min-width:0;background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:5px;padding:5px 8px;font-size:13px}.field input:focus,.field select:focus{outline:none;border-color:var(--accent)}.field input[type=color]{width:40px;height:26px;padding:0;border:1px solid var(--line);border-radius:5px;background:none;cursor:pointer}.opening-card{border:1px solid var(--line);border-radius:7px;padding:8px;margin-bottom:8px;background:var(--panel2)}.opening-card .field input,.opening-card .field select{background:var(--panel)}.opening-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}.opening-head b{text-transform:capitalize}.btn-row{display:flex;gap:8px;margin-top:10px}.btn-row button{flex:1}#walkPanel{position:absolute;top:12px;right:12px;z-index:6;width:220px;background:#1e2129f0;border:1px solid var(--line);border-radius:10px;padding:10px 12px}#walkPanel h3{font-size:11px;text-transform:uppercase;letter-spacing:.8px;color:var(--muted);margin:0 0 8px}#walkPanel .field input{flex:1;min-width:0;background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:5px;padding:4px 6px;font-size:12px}#openPanel,#wallPanel,#measurePanel,#floorPanel{position:absolute;top:12px;left:12px;z-index:6;width:236px;background:#1e2129f0;border:1px solid var(--line);border-radius:10px;padding:10px 12px}#openPanel h3,#wallPanel h3,#measurePanel h3,#floorPanel h3{font-size:11px;text-transform:uppercase;letter-spacing:.8px;color:var(--muted);margin:0 0 8px}#openPanel .field input,#openPanel .field select,#wallPanel .field input,#wallPanel .field select,#measurePanel .field input,#floorPanel .field input,#floorPanel .field select{flex:1;min-width:0;background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:5px;padding:4px 6px;font-size:12px}.panel-head{display:flex;align-items:center;justify-content:space-between;margin:0 0 8px}.panel-head h3{margin:0!important}.panel-head .ghost{padding:0 4px;color:var(--muted);font-size:12px}.panel-head .ghost:hover{color:var(--text)}#sunPanel{position:absolute;top:12px;left:12px;z-index:5;width:286px;background:#1e2129f0;border:1px solid var(--line);border-radius:10px;padding:10px 12px}#sunPanel h3{font-size:11px;text-transform:uppercase;letter-spacing:.8px;color:var(--muted);margin:0 0 8px}.sun-row{display:flex;align-items:center;gap:6px;margin-bottom:6px;color:var(--muted);font-size:12px;min-width:0}.sun-row>*{flex-shrink:0}.sun-row b{color:var(--text);font-size:13px}.sun-row select{background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:5px;padding:3px 4px;font-size:11px}.sun-row input[type=date]{flex:1 1 0;min-width:0;background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:5px;padding:4px;font-size:12px;color-scheme:dark}#sunPanel input[type=range]{width:100%;margin:4px 0 6px}button.mini{padding:4px 8px;font-size:12px}.sun-presets{display:grid;grid-template-columns:repeat(4,1fr);gap:5px;margin:6px 0}.sun-presets button{padding:4px 2px;font-size:11px}#sunPanel details{margin-top:6px}#sunPanel summary{color:var(--muted);font-size:12px;cursor:pointer;margin-bottom:6px}#sunPanel .field input[type=number]{flex:1;min-width:0;background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:5px;padding:4px 6px;font-size:12px}.sun-note{color:var(--muted);font-size:11px;margin-top:4px}#sunPosLabel{margin-left:auto}#status{display:flex;align-items:center;gap:12px;padding:4px 12px;background:var(--panel);border-top:1px solid var(--line);color:var(--muted);font-size:12px;flex:none}.modal[hidden]{display:none}.modal{position:fixed;inset:0;z-index:50;background:#00000080;display:flex;align-items:center;justify-content:center}.modal-card{background:var(--panel);border:1px solid var(--line);border-radius:10px;width:560px;max-width:92vw;max-height:84vh;overflow-y:auto;padding:14px}.modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.lib-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:8px;margin-bottom:14px}.lib-card{border:1px solid var(--line);border-radius:8px;padding:10px;cursor:pointer;background:var(--panel2);text-align:left;position:relative}.lib-card:hover{border-color:var(--accent)}.lib-del{position:absolute;top:3px;right:3px;background:none;border:none;padding:2px 5px;color:var(--muted);font-size:11px;line-height:1;cursor:pointer;opacity:.5}.lib-card:hover .lib-del{opacity:1}.lib-del:hover{color:var(--danger)}.lib-card b{display:block;margin-bottom:3px}.lib-card span{color:var(--muted);font-size:11px}.custom-item .row{display:flex;gap:6px;margin-top:8px}.custom-item input{background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:5px;padding:5px 8px;min-width:0}.custom-item input:first-child{flex:1}.modal-card.wide{width:860px}.tex-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(104px,1fr));gap:8px;max-height:420px;overflow-y:auto;margin:8px 0}.tex-tile{border:1px solid var(--line);border-radius:6px;overflow:hidden;background:var(--panel2);cursor:pointer;padding:0;text-align:left}.tex-tile:hover,.tex-tile.active{border-color:var(--accent)}.tex-tile img{width:100%;aspect-ratio:1;display:block;object-fit:cover;background:#222}.tex-tile span{display:block;font-size:10px;color:var(--muted);padding:3px 5px}.tex-empty{color:var(--muted);font-size:12px;padding:14px 2px}#askModal{z-index:60}.ask-body{color:var(--text);font-size:13px;line-height:1.5}.ask-body .quiet{color:var(--muted);font-size:12px;margin-top:6px;display:block}#askModal .field{margin:12px 0 0}#askModal .field[hidden]{display:none}#askModal .btn-row{justify-content:flex-end}#askModal .btn-row button{flex:none;min-width:92px}.ds-row{display:flex;align-items:center;gap:8px;padding:8px 10px;margin-bottom:6px;border:1px solid var(--line);border-radius:7px;background:var(--panel2)}.ds-row.active{border-color:var(--accent)}.ds-row .ds-name{flex:1;min-width:0;color:var(--text);font-size:13px;padding:4px 2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ds-row .ds-meta{color:var(--muted);font-size:11px;white-space:nowrap}.ds-row button{padding:4px 10px;font-size:12px}.ds-current{color:var(--accent);font-size:11px;white-space:nowrap}.sp-row{display:grid;grid-template-columns:90px 1fr 28px;gap:8px;align-items:center;margin-bottom:6px}.sp-row label{color:var(--muted);font-size:12px}.sp-row input{background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:5px;padding:5px 8px;font-size:13px;min-width:0}.sp-row input:focus{outline:none;border-color:var(--accent)}.sp-row input:disabled{color:var(--muted);background:transparent;border-style:dashed}.sp-row button{background:none;border:none;color:var(--muted);cursor:pointer;padding:2px}.sp-row button:hover{color:var(--danger)}.ul-status{color:var(--muted);margin-bottom:8px;min-height:18px}.page-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:10px}.page-card{border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--panel2);cursor:pointer;padding:0 0 4px;text-align:center;color:var(--muted);font-size:11px}.page-card:hover{border-color:var(--accent);color:var(--text)}.page-card canvas{width:100%;display:block;margin-bottom:4px;background:#fff}#underlayPanel{border-bottom:1px solid var(--line);padding:10px}#underlayPanel h3{font-size:11px;text-transform:uppercase;letter-spacing:.8px;color:var(--muted);margin:0 0 6px}.ul-row{display:flex;align-items:center;gap:10px;margin-bottom:8px;color:var(--muted)}.ul-row input[type=range]{flex:1}.ul-btns{display:grid;grid-template-columns:1fr 1fr;gap:6px}.ul-btns button.active{background:var(--accent);color:#fff;border-color:var(--accent)}.ul-scale{color:var(--muted);font-size:11px;margin-top:6px}.cal-input{background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:5px;padding:6px 8px}.cal-input:focus{outline:none;border-color:var(--accent)}#floorPanel .seg{flex:1}#floorPanel .seg button{padding:4px 6px;font-size:11px;white-space:nowrap}#floorPanel .btn-row button{font-size:11px;padding:5px 8px}#acBody input{flex:1;min-width:0;background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:6px;padding:6px 8px;font-size:13px}body.read-only #fmNew,body.read-only #fmOpen,body.read-only #fmSaveAs,body.read-only #fmImport,body.read-only #fmExport,body.read-only .menu-drop .menu-sep,body.read-only #btnLevels,body.read-only #btnAddRoom,body.read-only #btnAddWall,body.read-only #btnAddOpening,body.read-only #btnAddFloor,body.read-only #btnAddItem,body.read-only #btnAddStruct,body.read-only #btnUnderlay,body.read-only #btnMeasure,body.read-only #cbarHistory,body.read-only #btnSnap,body.read-only #btnShare,body.read-only #btnAccount,body.read-only .rail-sep{display:none}body.read-only #projectName{pointer-events:none;opacity:.8}.seg-head{display:grid;grid-template-columns:1fr 1fr 26px;gap:6px;font-size:11px;opacity:.6;margin:6px 0 2px}.seg-row{display:grid;grid-template-columns:1fr 1fr 26px;gap:6px;margin-bottom:4px}.seg-row input{width:100%;min-width:0}.seg-row button{padding:0}.gr-section{width:100%;height:90px;margin:6px 0;border-radius:6px;background:#00000030}.gr-area-row{display:grid;grid-template-columns:1fr auto auto;gap:6px;align-items:center;margin-bottom:4px}.gr-area-row>b{font-weight:600;font-size:12px}