:root{--bg:#1a1a1a;--canvas-bg:#272727;--surface:#2d2d2d;--surface-2:#363636;--surface-3:#404040;--border:#484848;--border-strong:#5e5e5e;--text:#e6e6e4;--text-secondary:#a0a09c;--text-tertiary:#747470;--text-disabled:#4c4c4c;--accent:#e0673a;--accent-soft:#3c2015;--accent-darker:#c4522c;--entity-underdef:#5aaee0;--entity-defined:#d8d8d4;--entity-selected:#e0673a;--entity-hover:#88ccf2;--entity-construction:#3d6a88;--guide-line:#00bcd4;--axis-line:#ffffff2e;--grid-line:#ffffff0a;--grid-line-major:#ffffff1a;--origin:#e0673a;--radius-sm:4px;--radius-md:6px;--radius-lg:10px;--shadow-sm:0 1px 3px #00000080;--shadow:0 2px 6px #0000008c, 0 4px 12px #0006;--shadow-lg:0 4px 16px #000000a6, 0 16px 32px #00000080;--panel-width:240px;--panel-collapsed:32px}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--text);width:100vw;height:100vh;margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;font-size:13px;line-height:1.5;overflow:hidden}.app{grid-template-rows:auto auto 1fr auto;width:100vw;height:100vh;display:grid}header.titlebar{background:var(--surface);border-bottom:1px solid var(--border);align-items:center;gap:12px;padding:8px 16px;display:flex}header.titlebar h1{margin:0;font-size:14px;font-weight:600}header.titlebar .stage-tag{background:var(--accent-soft);color:var(--accent-darker);text-transform:uppercase;letter-spacing:.04em;border-radius:999px;padding:2px 8px;font-size:10px;font-weight:600}header.titlebar .spacer{flex:1}header.titlebar .right-info{color:var(--text-tertiary);font-size:12px}.canvas-card{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface);margin:6px 8px 0;overflow:hidden}.canvas-card-header{background:var(--surface-2);align-items:center;gap:6px;padding:5px 8px;display:flex}.canvas-card-header .ent-icon{width:16px;height:16px;color:var(--text-secondary);flex-shrink:0}.canvas-card-header .ent-icon svg{fill:none;stroke:currentColor;stroke-width:1.5px;stroke-linecap:round;width:100%;height:100%}.canvas-card-header .ent-name{color:var(--text);text-overflow:ellipsis;white-space:nowrap;flex:1;font-size:12px;font-weight:500;overflow:hidden}.canvas-card-header .ent-actions{gap:2px;display:flex}.canvas-card-body{align-items:center;gap:8px;padding:6px 10px 8px;display:flex}.canvas-card-body label{color:var(--text-secondary);white-space:nowrap;font-size:11px}.canvas-opacity-slider{accent-color:var(--accent);cursor:pointer;flex:1;height:3px}.canvas-opacity-val{color:var(--text-tertiary);text-align:right;width:28px;font-size:11px}.cal-tag{background:var(--surface);border:1.5px solid var(--accent);border-radius:var(--radius-sm);box-shadow:var(--shadow);z-index:1000;pointer-events:all;align-items:center;gap:4px;padding:4px 8px;display:none;position:fixed;transform:translate(-50%,-50%)}.cal-tag.open{display:flex}.cal-tag-input{width:62px;color:var(--text);text-align:right;background:0 0;border:none;outline:none;padding:0;font-family:inherit;font-size:12px}.cal-tag-input::-webkit-inner-spin-button{-webkit-appearance:none}.cal-tag-input::-webkit-outer-spin-button{-webkit-appearance:none}.cal-tag-input[type=number]{-moz-appearance:textfield}.cal-tag-unit{color:var(--text-tertiary);font-size:11px}.dim-val-tag{background:var(--surface-elevated,var(--surface));border:1.5px solid var(--accent);z-index:200;border-radius:4px;align-items:center;gap:4px;padding:4px 8px;font-size:13px;display:none;position:fixed;box-shadow:0 2px 10px #00000059}.dim-val-tag.open{display:flex}.dim-val-input{width:68px;color:var(--text);text-align:right;background:0 0;border:none;outline:none;padding:0;font-family:inherit;font-size:13px}.dim-val-input::-webkit-inner-spin-button{-webkit-appearance:none}.dim-val-input::-webkit-outer-spin-button{-webkit-appearance:none}.dim-val-input[type=number]{-moz-appearance:textfield}.dim-val-unit{color:var(--text-tertiary);min-width:14px;font-size:11px}.file-menu{position:relative}.file-menu-btn{cursor:pointer;color:var(--text);border-radius:var(--radius-sm);background:0 0;border:none;padding:4px 10px;font-family:inherit;font-size:13px;font-weight:500;line-height:1.5}.file-menu-btn:hover,.file-menu-btn.open{background:var(--surface-2)}.file-menu-dropdown{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);z-index:999;min-width:180px;padding:4px 0;display:none;position:absolute;top:calc(100% + 4px);left:0}.file-menu-dropdown.open{display:block}.file-menu-item{cursor:pointer;width:100%;color:var(--text);text-align:left;background:0 0;border:none;align-items:center;gap:8px;padding:6px 14px;font-family:inherit;font-size:13px;line-height:1.5;display:flex}.file-menu-item:hover{background:var(--surface-2)}.file-menu-item:disabled{color:var(--text-disabled);cursor:default}.file-menu-item:disabled:hover{background:0 0}.toolbar{background:var(--surface-2);border-bottom:1px solid var(--border);-webkit-user-select:none;user-select:none;align-items:stretch;gap:0;min-width:0;padding:6px 8px;display:flex;overflow:hidden}.tb-group{border-right:1px solid var(--border);flex-direction:column;flex-shrink:0;padding:0 6px;display:flex}.tb-group:last-child{border-right:none}.tb-group-sep-left{border-left:1px solid var(--border-strong)}.tb-group-label{color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.06em;white-space:nowrap;margin-bottom:4px;padding-left:2px;font-size:9px;font-weight:600}.tb-row{flex-wrap:nowrap;align-items:stretch;gap:2px;display:flex}.tb-btn{border-radius:var(--radius-sm);cursor:pointer;font:inherit;color:var(--text-secondary);white-space:nowrap;background:0 0;border:1px solid #0000;flex-shrink:0;align-items:center;gap:6px;min-height:30px;padding:4px 8px;font-size:12px;transition:background .1s,border-color .1s,color .1s;display:flex;position:relative}.tb-btn:hover:not(.disabled){background:var(--surface);border-color:var(--border);color:var(--text)}.tb-btn.active{background:var(--accent);border-color:var(--accent-darker);color:var(--surface)}.tb-btn.active:hover{background:var(--accent-darker)}.tb-btn.disabled{color:var(--text-disabled);cursor:not-allowed;opacity:.55}.tb-btn.tb-btn--dim{opacity:.35;pointer-events:none}.tb-btn .icon{width:16px;height:16px;color:inherit;flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.tb-btn .icon svg{fill:none;stroke:currentColor;stroke-width:1.5px;stroke-linecap:round;stroke-linejoin:round;width:100%;height:100%}.tb-btn .label{white-space:nowrap}.tb-btn.toggle.active{background:var(--accent-soft);border-color:var(--accent);color:var(--accent-darker)}.tb-split-arrow{opacity:.55;cursor:pointer;border-left:1px solid #0000;flex-shrink:0;align-self:center;padding:0 2px 0 4px;font-size:8px;line-height:1}.tb-btn:hover .tb-split-arrow,.tb-btn.active .tb-split-arrow{opacity:.9;border-left-color:#ffffff40}.tb-btn:not(.active):hover .tb-split-arrow{border-left-color:var(--border)}.tool-submenu{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);z-index:1000;min-width:160px;padding:4px;display:none;position:fixed}.tool-submenu.show{display:block}.tool-submenu .sm-item{border-radius:var(--radius-sm);cursor:pointer;color:var(--text-secondary);white-space:nowrap;align-items:center;gap:8px;padding:6px 10px;font-size:12px;display:flex}.tool-submenu .sm-item:hover{background:var(--surface-2);color:var(--text)}.tool-submenu .sm-item.current{color:var(--accent);font-weight:500}.tool-submenu .sm-item .icon{flex-shrink:0;width:14px;height:14px}.tool-submenu .sm-item .icon svg{fill:none;stroke:currentColor;stroke-width:1.5px;stroke-linecap:round;stroke-linejoin:round;width:100%;height:100%}.sketch-palette,.constraints-palette{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);z-index:1001;padding:4px;display:none;position:fixed}.sketch-palette.show,.constraints-palette.show{display:block}.sp-row{gap:2px;display:flex}.sp-divider{background:var(--border);height:1px;margin:3px 2px}.sp-btn{border-radius:var(--radius-sm);cursor:pointer;width:32px;height:32px;color:var(--text-secondary);background:0 0;border:1px solid #0000;justify-content:center;align-items:center;display:flex;position:relative}.sp-btn:hover:not(.sp-disabled){background:var(--surface-2);border-color:var(--border);color:var(--text)}.sp-btn.sp-active{background:var(--accent);border-color:var(--accent-darker);color:var(--surface)}.sp-btn.sp-disabled{opacity:.35;cursor:not-allowed}.sp-btn svg{fill:none;stroke:currentColor;stroke-width:1.5px;stroke-linecap:round;stroke-linejoin:round;width:16px;height:16px}.tb-overflow{border:1px dashed var(--border);border-radius:var(--radius-sm);cursor:pointer;color:var(--text-secondary);font:inherit;background:0 0;flex-shrink:0;align-items:center;min-height:30px;padding:4px 8px;font-size:14px;line-height:1;display:none}.tb-overflow.visible{display:inline-flex}.tb-overflow:hover{background:var(--surface);border-style:solid;border-color:var(--border-strong);color:var(--text)}.tb-btn.overflowed{display:none}.overflow-menu{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);z-index:1000;min-width:180px;padding:4px;display:none;position:fixed}.overflow-menu.show{display:block}.overflow-menu .menu-item{border-radius:var(--radius-sm);cursor:pointer;color:var(--text-secondary);white-space:nowrap;align-items:center;gap:8px;padding:6px 10px;font-size:12px;display:flex}.overflow-menu .menu-item:hover{background:var(--surface-2);color:var(--text)}.overflow-menu .menu-item.disabled{color:var(--text-disabled);cursor:not-allowed}.overflow-menu .menu-item .icon{flex-shrink:0;width:14px;height:14px}.overflow-menu .menu-item .icon svg{fill:none;stroke:currentColor;stroke-width:1.5px;stroke-linecap:round;stroke-linejoin:round;width:100%;height:100%}.tb-btn[data-tip]:hover:before{content:attr(data-tip);background:var(--text);color:var(--surface);border-radius:var(--radius-sm);white-space:nowrap;z-index:100;box-shadow:var(--shadow);padding:4px 8px;font-size:11px;position:absolute;top:calc(100% + 6px);left:50%;transform:translate(-50%)}.work-area{grid-template-columns:1fr auto;min-width:0;min-height:0;display:grid;overflow:hidden}.canvas-wrap{background:var(--canvas-bg);min-width:0;position:relative;overflow:hidden}#cad-canvas{cursor:crosshair;-webkit-user-select:none;user-select:none;width:100%;height:100%;position:absolute;inset:0}#cad-canvas.tool-select{cursor:default}#cad-canvas.tool-pan{cursor:grab}#cad-canvas.panning{cursor:grabbing}#cad-canvas.dragging,#cad-canvas.dragging *{cursor:grabbing!important}#cad-canvas.tool-line{cursor:url(data:image/svg+xml,%3Csvg%20xmlns=%22http://www.w3.org/2000/svg%22%20width=%2232%22%20height=%2232%22%20viewBox=%220%200%2032%2032%22%3E%3Cline%20x1=%2216%22%20y1=%221%22%20x2=%2216%22%20y2=%2231%22%20stroke=%22%23ffd700%22%20stroke-width=%221%22/%3E%3Cline%20x1=%221%22%20y1=%2216%22%20x2=%2231%22%20y2=%2216%22%20stroke=%22%23ffd700%22%20stroke-width=%221%22/%3E%3Cg%20transform=%22translate\(19,19\)%22%20fill=%22none%22%20stroke=%22%23c7501e%22%20stroke-width=%221.5%22%20stroke-linecap=%22round%22%20stroke-linejoin=%22round%22%3E%3Cline%20x1=%221%22%20y1=%2211%22%20x2=%2211%22%20y2=%221%22/%3E%3Crect%20x=%220%22%20y=%228.5%22%20width=%222.5%22%20height=%222.5%22%20fill=%22%23c7501e%22%20stroke=%22none%22/%3E%3Crect%20x=%229.5%22%20y=%220%22%20width=%222.5%22%20height=%222.5%22%20fill=%22%23c7501e%22%20stroke=%22none%22/%3E%3C/g%3E%3C/svg%3E) 16 16,crosshair}#cad-canvas.tool-rect{cursor:url(data:image/svg+xml,%3Csvg%20xmlns=%22http://www.w3.org/2000/svg%22%20width=%2232%22%20height=%2232%22%20viewBox=%220%200%2032%2032%22%3E%3Cline%20x1=%2216%22%20y1=%221%22%20x2=%2216%22%20y2=%2231%22%20stroke=%22%23ffd700%22%20stroke-width=%221%22/%3E%3Cline%20x1=%221%22%20y1=%2216%22%20x2=%2231%22%20y2=%2216%22%20stroke=%22%23ffd700%22%20stroke-width=%221%22/%3E%3Cg%20transform=%22translate\(19,19\)%22%20fill=%22none%22%20stroke=%22%23c7501e%22%20stroke-width=%221.5%22%20stroke-linecap=%22round%22%20stroke-linejoin=%22round%22%3E%3Crect%20x=%221%22%20y=%222.5%22%20width=%2210%22%20height=%227%22%20rx=%220.5%22/%3E%3C/g%3E%3C/svg%3E) 16 16,crosshair}#cad-canvas.tool-circle{cursor:url(data:image/svg+xml,%3Csvg%20xmlns=%22http://www.w3.org/2000/svg%22%20width=%2232%22%20height=%2232%22%20viewBox=%220%200%2032%2032%22%3E%3Cline%20x1=%2216%22%20y1=%221%22%20x2=%2216%22%20y2=%2231%22%20stroke=%22%23ffd700%22%20stroke-width=%221%22/%3E%3Cline%20x1=%221%22%20y1=%2216%22%20x2=%2231%22%20y2=%2216%22%20stroke=%22%23ffd700%22%20stroke-width=%221%22/%3E%3Cg%20transform=%22translate\(19,19\)%22%20fill=%22none%22%20stroke=%22%23c7501e%22%20stroke-width=%221.5%22%20stroke-linecap=%22round%22%20stroke-linejoin=%22round%22%3E%3Ccircle%20cx=%226%22%20cy=%226%22%20r=%224.5%22/%3E%3Ccircle%20cx=%226%22%20cy=%226%22%20r=%221%22%20fill=%22%23c7501e%22%20stroke=%22none%22/%3E%3C/g%3E%3C/svg%3E) 16 16,crosshair}#cad-canvas.tool-arc{cursor:url(data:image/svg+xml,%3Csvg%20xmlns=%22http://www.w3.org/2000/svg%22%20width=%2232%22%20height=%2232%22%20viewBox=%220%200%2032%2032%22%3E%3Cline%20x1=%2216%22%20y1=%221%22%20x2=%2216%22%20y2=%2231%22%20stroke=%22%23ffd700%22%20stroke-width=%221%22/%3E%3Cline%20x1=%221%22%20y1=%2216%22%20x2=%2231%22%20y2=%2216%22%20stroke=%22%23ffd700%22%20stroke-width=%221%22/%3E%3Cg%20transform=%22translate\(19,19\)%22%20fill=%22none%22%20stroke=%22%23c7501e%22%20stroke-width=%221.5%22%20stroke-linecap=%22round%22%20stroke-linejoin=%22round%22%3E%3Cpath%20d=%22M%201%209%20A%206%206%200%200%201%2011%209%22/%3E%3Cline%20x1=%226%22%20y1=%223%22%20x2=%226%22%20y2=%229%22%20stroke-dasharray=%221.5%201.5%22%20stroke-width=%221%22/%3E%3C/g%3E%3C/svg%3E) 16 16,crosshair}#cad-canvas.tool-arc3{cursor:url(data:image/svg+xml,%3Csvg%20xmlns=%22http://www.w3.org/2000/svg%22%20width=%2232%22%20height=%2232%22%20viewBox=%220%200%2032%2032%22%3E%3Cline%20x1=%2216%22%20y1=%221%22%20x2=%2216%22%20y2=%2231%22%20stroke=%22%23ffd700%22%20stroke-width=%221%22/%3E%3Cline%20x1=%221%22%20y1=%2216%22%20x2=%2231%22%20y2=%2216%22%20stroke=%22%23ffd700%22%20stroke-width=%221%22/%3E%3Cg%20transform=%22translate\(19,19\)%22%20fill=%22none%22%20stroke=%22%23c7501e%22%20stroke-width=%221.5%22%20stroke-linecap=%22round%22%20stroke-linejoin=%22round%22%3E%3Cpath%20d=%22M%201%209%20A%206%206%200%200%201%2011%209%22/%3E%3Ccircle%20cx=%221%22%20cy=%229%22%20r=%221.2%22%20fill=%22%23c7501e%22%20stroke=%22none%22/%3E%3Ccircle%20cx=%2211%22%20cy=%229%22%20r=%221.2%22%20fill=%22%23c7501e%22%20stroke=%22none%22/%3E%3Ccircle%20cx=%226%22%20cy=%223.5%22%20r=%221.2%22%20fill=%22%23c7501e%22%20stroke=%22none%22/%3E%3C/g%3E%3C/svg%3E) 16 16,crosshair}#cad-canvas.tool-dim{cursor:url(data:image/svg+xml,%3Csvg%20xmlns=%22http://www.w3.org/2000/svg%22%20width=%2232%22%20height=%2232%22%20viewBox=%220%200%2032%2032%22%3E%3Cline%20x1=%2216%22%20y1=%221%22%20x2=%2216%22%20y2=%2231%22%20stroke=%22%23ffd700%22%20stroke-width=%221%22/%3E%3Cline%20x1=%221%22%20y1=%2216%22%20x2=%2231%22%20y2=%2216%22%20stroke=%22%23ffd700%22%20stroke-width=%221%22/%3E%3Cg%20transform=%22translate\(19,19\)%22%20fill=%22none%22%20stroke=%22%23c7501e%22%20stroke-width=%221.5%22%20stroke-linecap=%22round%22%20stroke-linejoin=%22round%22%3E%3Cline%20x1=%221%22%20y1=%226%22%20x2=%2211%22%20y2=%226%22/%3E%3Cline%20x1=%221%22%20y1=%223%22%20x2=%221%22%20y2=%229%22/%3E%3Cline%20x1=%2211%22%20y1=%223%22%20x2=%2211%22%20y2=%229%22/%3E%3C/g%3E%3C/svg%3E) 16 16,crosshair}#cad-canvas.tool-lasso{cursor:crosshair}#cad-canvas.tool-line,#cad-canvas.tool-rect,#cad-canvas.tool-circle,#cad-canvas.tool-arc,#cad-canvas.tool-arc3{cursor:none!important}#cad-canvas.tool-dim-smart{cursor:url(data:image/svg+xml,%3Csvg%20xmlns=%22http://www.w3.org/2000/svg%22%20width=%2232%22%20height=%2232%22%20viewBox=%220%200%2032%2032%22%3E%3Cpath%20d=%22M3%201%20L3%2019%20L7%2015%20L10%2021%20L12%2020%20L9%2014%20L14%2014Z%22%20stroke=%22white%22%20stroke-width=%222.5%22%20stroke-linejoin=%22round%22%20fill=%22none%22/%3E%3Cpath%20d=%22M3%201%20L3%2019%20L7%2015%20L10%2021%20L12%2020%20L9%2014%20L14%2014Z%22%20fill=%22%231a1a1a%22%20stroke=%22%231a1a1a%22%20stroke-width=%221%22%20stroke-linejoin=%22round%22/%3E%3Cline%20x1=%2218%22%20y1=%2221%22%20x2=%2218%22%20y2=%2227%22%20stroke=%22%23c7501e%22%20stroke-width=%221.5%22%20stroke-linecap=%22round%22/%3E%3Cline%20x1=%2228%22%20y1=%2221%22%20x2=%2228%22%20y2=%2227%22%20stroke=%22%23c7501e%22%20stroke-width=%221.5%22%20stroke-linecap=%22round%22/%3E%3Cline%20x1=%2218%22%20y1=%2224%22%20x2=%2228%22%20y2=%2224%22%20stroke=%22%23c7501e%22%20stroke-width=%221.5%22%20stroke-linecap=%22round%22/%3E%3C%2Fsvg%3E) 3 1,default}#cad-canvas.tool-trim{cursor:url(data:image/svg+xml,%3Csvg%20xmlns=%22http://www.w3.org/2000/svg%22%20width=%2232%22%20height=%2232%22%20viewBox=%220%200%2032%2032%22%3E%3Cpath%20d=%22M3%201%20L3%2019%20L7%2015%20L10%2021%20L12%2020%20L9%2014%20L14%2014Z%22%20stroke=%22white%22%20stroke-width=%222.5%22%20stroke-linejoin=%22round%22%20fill=%22none%22/%3E%3Cpath%20d=%22M3%201%20L3%2019%20L7%2015%20L10%2021%20L12%2020%20L9%2014%20L14%2014Z%22%20fill=%22%231a1a1a%22%20stroke=%22%231a1a1a%22%20stroke-width=%221%22%20stroke-linejoin=%22round%22/%3E%3Cline%20x1=%2218%22%20y1=%2221%22%20x2=%2229%22%20y2=%2227%22%20stroke=%22%23c7501e%22%20stroke-width=%221.5%22%20stroke-linecap=%22round%22/%3E%3Cline%20x1=%2218%22%20y1=%2227%22%20x2=%2229%22%20y2=%2221%22%20stroke=%22%23c7501e%22%20stroke-width=%221.5%22%20stroke-linecap=%22round%22/%3E%3Ccircle%20cx=%2223.5%22%20cy=%2224%22%20r=%221.5%22%20fill=%22%23c7501e%22%20stroke=%22white%22%20stroke-width=%220.5%22/%3E%3C%2Fsvg%3E) 3 1,default}#cad-canvas.tool-extend{cursor:url(data:image/svg+xml,%3Csvg%20xmlns=%22http://www.w3.org/2000/svg%22%20width=%2232%22%20height=%2232%22%20viewBox=%220%200%2032%2032%22%3E%3Cpath%20d=%22M3%201%20L3%2019%20L7%2015%20L10%2021%20L12%2020%20L9%2014%20L14%2014Z%22%20stroke=%22white%22%20stroke-width=%222.5%22%20stroke-linejoin=%22round%22%20fill=%22none%22/%3E%3Cpath%20d=%22M3%201%20L3%2019%20L7%2015%20L10%2021%20L12%2020%20L9%2014%20L14%2014Z%22%20fill=%22%231a1a1a%22%20stroke=%22%231a1a1a%22%20stroke-width=%221%22%20stroke-linejoin=%22round%22/%3E%3Cline%20x1=%2218%22%20y1=%2224%22%20x2=%2221%22%20y2=%2224%22%20stroke=%22%23c7501e%22%20stroke-width=%221.5%22%20stroke-linecap=%22round%22/%3E%3Cline%20x1=%2221%22%20y1=%2224%22%20x2=%2229%22%20y2=%2224%22%20stroke=%22%23c7501e%22%20stroke-width=%221.5%22%20stroke-linecap=%22round%22%20stroke-dasharray=%221.5%201%22/%3E%3Cpolyline%20points=%2226%2C21.5%2029%2C24%2026%2C26.5%22%20fill=%22none%22%20stroke=%22%23c7501e%22%20stroke-width=%221.5%22%20stroke-linecap=%22round%22%20stroke-linejoin=%22round%22/%3E%3C%2Fsvg%3E) 3 1,default}#cad-canvas svg{width:100%;height:100%;display:block}#cad-canvas text{-webkit-user-select:none;user-select:none}.tool-options-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow);z-index:10;-webkit-user-select:none;user-select:none;min-width:140px;padding:8px 10px;font-size:12px;position:absolute;top:12px;right:56px}.tool-options-panel .top-label{color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.05em;margin-bottom:6px;font-size:10px;font-weight:600}.tool-opt-check{cursor:pointer;color:var(--text);align-items:center;gap:7px;padding:3px 0;display:flex}.tool-opt-check input[type=checkbox]{accent-color:var(--accent);cursor:pointer;flex-shrink:0;width:13px;height:13px}.view-overlay{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow);z-index:10;flex-direction:column;gap:2px;padding:4px;display:flex;position:absolute;top:12px;right:12px}.view-overlay .vo-btn{border-radius:var(--radius-sm);cursor:pointer;color:var(--text-secondary);background:0 0;border:1px solid #0000;justify-content:center;align-items:center;width:32px;height:32px;padding:6px;display:flex;position:relative}.view-overlay .vo-btn:hover{background:var(--surface-2);color:var(--text)}.view-overlay .vo-btn.active{background:var(--accent-soft);border-color:var(--accent);color:var(--accent-darker)}.view-overlay .vo-btn svg{fill:none;stroke:currentColor;stroke-width:1.5px;stroke-linecap:round;stroke-linejoin:round;width:16px;height:16px}.view-overlay .vo-divider{background:var(--border);height:1px;margin:2px 0}.view-overlay .vo-btn[data-tip]:hover:before{content:attr(data-tip);background:var(--text);color:var(--surface);border-radius:var(--radius-sm);white-space:nowrap;z-index:100;padding:4px 8px;font-size:11px;position:absolute;top:50%;right:calc(100% + 8px);transform:translateY(-50%)}.browser-panel{width:var(--panel-width);background:var(--surface);border-left:1px solid var(--border);flex-direction:column;min-height:0;transition:width .18s;display:flex}.browser-panel.collapsed{width:var(--panel-collapsed)}.browser-panel.collapsed .panel-body,.browser-panel.collapsed .panel-tabs{display:none}.panel-header{border-bottom:1px solid var(--border);background:var(--surface-2);align-items:center;min-height:34px;padding:6px 8px;display:flex}.panel-collapse{cursor:pointer;color:var(--text-secondary);border-radius:var(--radius-sm);background:0 0;border:none;padding:4px;display:inline-flex}.panel-collapse:hover{background:var(--surface);color:var(--text)}.panel-collapse svg{fill:none;stroke:currentColor;stroke-width:1.5px;stroke-linecap:round;width:14px;height:14px}.panel-title{color:var(--text);flex:1;margin-left:6px;font-size:12px;font-weight:600}.browser-panel.collapsed .panel-title{display:none}.panel-tabs{border-bottom:1px solid var(--border);background:var(--surface-2);padding:0 4px;display:flex}.panel-tab{cursor:pointer;font:inherit;color:var(--text-secondary);background:0 0;border:none;border-bottom:2px solid #0000;margin-bottom:-1px;padding:8px 12px;font-size:12px}.panel-tab:hover{color:var(--text)}.panel-tab.active{color:var(--text);border-bottom-color:var(--accent);font-weight:500}.panel-tab .count{background:var(--surface-3);color:var(--text-secondary);border-radius:999px;margin-left:4px;padding:1px 6px;font-size:10px;font-weight:600;display:inline-block}.panel-tab.active .count{background:var(--accent-soft);color:var(--accent-darker)}.panel-body{flex:1;padding:4px 0;overflow-y:auto}.panel-section{display:none}.panel-section.active{display:block}.panel-empty{text-align:center;color:var(--text-tertiary);padding:24px 12px;font-size:12px;font-style:italic}.entity-row{cursor:pointer;color:var(--text);border-left:3px solid #0000;align-items:center;gap:6px;padding:4px 10px;font-size:12px;display:flex}.entity-row:hover{background:var(--surface-2)}.entity-row.selected{background:var(--accent-soft);border-left-color:var(--accent);color:var(--accent-darker)}.entity-row.row-reorderable:hover{cursor:grab}.entity-row.row-dragging{opacity:.4}.entity-row.drop-before{box-shadow:inset 0 2px 0 0 var(--accent)}.entity-row.drop-after{box-shadow:inset 0 -2px 0 0 var(--accent)}.entity-row .ent-icon{width:14px;height:14px;color:var(--entity-underdef);flex-shrink:0}.entity-row.selected .ent-icon{color:var(--accent)}.entity-row .ent-icon svg{fill:none;stroke:currentColor;stroke-width:1.5px;stroke-linecap:round;width:100%;height:100%}.entity-row .ent-name{cursor:default;flex:1}.entity-row .ent-name[data-renameable]{cursor:default}.ent-rename-input{outline:1px solid var(--accent);color:var(--text);background:var(--surface);border:none;border-radius:3px;flex:1;min-width:0;padding:1px 4px;font-family:inherit;font-size:13px}.entity-row .ent-flags{color:var(--text-tertiary);font-size:10px}.group-row{cursor:pointer;color:var(--text);background:var(--surface-2);border-left:3px solid #0000;border-top:1px solid var(--border);-webkit-user-select:none;user-select:none;align-items:center;gap:6px;padding:5px 10px 5px 8px;font-size:12px;font-weight:600;display:flex}.group-row:hover{background:var(--surface-3,var(--surface-2));filter:brightness(1.08)}.group-row.selected{background:var(--accent-soft);border-left-color:var(--accent);color:var(--accent-darker)}.group-row .grp-icon{opacity:.7;flex-shrink:0;width:14px;height:14px}.entity-row.group-member{padding-left:24px}.entity-row .ent-actions{flex-shrink:0;align-items:center;gap:2px;margin-left:4px;display:inline-flex}.row-action{cursor:pointer;color:var(--text-disabled);background:0 0;border:1px solid #0000;border-radius:3px;justify-content:center;align-items:center;width:20px;height:20px;padding:2px;transition:color .1s,background .1s;display:inline-flex}.row-action svg{fill:none;stroke:currentColor;stroke-width:1.5px;stroke-linecap:round;stroke-linejoin:round;width:12px;height:12px}.row-action:hover:not(.disabled){background:var(--surface-3);color:var(--text)}.row-action.active{color:var(--accent)}.row-action.active:hover{color:var(--accent-darker)}.row-action.disabled{opacity:.25;cursor:not-allowed}.row-action[data-tip]:hover:after{content:attr(data-tip);background:var(--text);color:var(--surface);white-space:nowrap;z-index:100;pointer-events:none;border-radius:3px;padding:3px 7px;font-size:10px;position:absolute;transform:translateY(20px)}.row-action{position:relative}.entity-children{margin-bottom:2px;padding-left:18px}.entity-child{color:var(--text-secondary);align-items:center;gap:6px;padding:2px 10px;font-size:11px;display:flex}.entity-child .child-icon{flex-shrink:0;width:11px;height:11px}.entity-child .child-icon svg{fill:none;stroke:currentColor;stroke-width:1.5px;stroke-linecap:round;width:100%;height:100%}.expand-toggle{cursor:pointer;color:var(--text-tertiary);background:0 0;border:none;border-radius:2px;flex-shrink:0;justify-content:center;align-items:center;width:14px;height:14px;padding:0;font-size:8px;line-height:1;display:inline-flex}.expand-toggle:hover{color:var(--text);background:var(--surface-3)}.expand-spacer{flex-shrink:0;width:14px;display:inline-block}.constraint-group{margin-bottom:6px}.constraint-group-header{color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.04em;padding:6px 12px 2px;font-size:10px;font-weight:600}.constraint-row{cursor:pointer;color:var(--text-secondary);align-items:center;gap:6px;padding:3px 12px;font-size:11px;display:flex}.constraint-row:hover{background:var(--surface-2);color:var(--text)}.constraint-row .c-icon{flex-shrink:0;width:12px;height:12px}.constraint-row .c-icon svg{fill:none;stroke:currentColor;stroke-width:1.5px;stroke-linecap:round;width:100%;height:100%}.statusbar{background:var(--surface);border-top:1px solid var(--border);color:var(--text-secondary);align-items:center;gap:16px;min-height:24px;padding:4px 12px;font-size:11px;display:flex}.statusbar .sb-item{align-items:center;gap:4px;display:inline-flex}.statusbar .sb-key{color:var(--text-tertiary)}.statusbar .sb-value{color:var(--text);font-variant-numeric:tabular-nums}.statusbar .sb-spacer{flex:1}.statusbar .sb-pill{background:var(--accent-soft);color:var(--accent-darker);border-radius:999px;padding:1px 8px;font-weight:600}.toast{background:var(--text);color:var(--surface);border-radius:var(--radius-md);box-shadow:var(--shadow);opacity:0;pointer-events:none;z-index:200;padding:10px 18px;font-size:13px;transition:opacity .2s,transform .2s;position:fixed;bottom:40px;left:50%;transform:translate(-50%)}.toast.show{opacity:1;transform:translate(-50%)translateY(-4px)}.context-menu{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow);z-index:300;min-width:140px;padding:4px 0;font-size:13px;position:fixed}.context-menu .cm-item{cursor:pointer;color:var(--text);-webkit-user-select:none;user-select:none;padding:6px 14px}.context-menu .cm-item:hover{background:var(--surface-2)}.context-menu .cm-divider{background:var(--border);height:1px;margin:4px 0}.titlebar-sep{background:var(--border);flex-shrink:0;width:1px;height:16px}.titlebar-auth-link{color:var(--accent);border-radius:var(--radius-sm);white-space:nowrap;padding:3px 8px;font-size:12px;text-decoration:none}.titlebar-auth-link:hover{background:var(--accent-soft)}.titlebar-auth-btn{cursor:pointer;font:inherit;color:var(--text-secondary);border-radius:var(--radius-sm);white-space:nowrap;background:0 0;border:none;padding:3px 8px;font-size:12px}.titlebar-auth-btn:hover{background:var(--surface-2);color:var(--text)}.auth-page{background:var(--bg);justify-content:center;align-items:center;min-height:100vh;display:flex}.auth-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);width:100%;max-width:380px;box-shadow:var(--shadow-lg);padding:40px 36px}.auth-title{color:var(--text);margin:0 0 6px;font-size:18px;font-weight:700}.auth-subtitle{color:var(--text-tertiary);margin:0 0 28px;font-size:13px}.auth-form{flex-direction:column;gap:16px;display:flex}.auth-field{flex-direction:column;gap:6px;display:flex}.auth-field label{color:var(--text-secondary);font-size:12px;font-weight:500}.auth-field input{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-sm);font:inherit;color:var(--text);outline:none;padding:8px 10px;font-size:13px;transition:border-color .15s}.auth-field input:focus{border-color:var(--accent)}.auth-field input::placeholder{color:var(--text-disabled)}.auth-error{color:#e05a5a;border-radius:var(--radius-sm);background:#e05a5a14;border:1px solid #e05a5a4d;margin:0;padding:8px 10px;font-size:12px}.auth-submit{background:var(--accent);border-radius:var(--radius-sm);cursor:pointer;font:inherit;color:#fff;border:none;padding:10px;font-size:13px;font-weight:600;transition:background .15s}.auth-submit:hover:not(:disabled){background:var(--accent-darker)}.auth-submit:disabled{opacity:.6;cursor:not-allowed}.admin-page{background:var(--bg);min-height:100vh;color:var(--text);flex-direction:column;display:flex}.admin-header{background:var(--surface);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:16px;padding:16px 24px;display:flex}.admin-header-left{align-items:baseline;gap:12px;display:flex}.admin-title{margin:0;font-size:16px;font-weight:700}.admin-count{color:var(--text-tertiary);font-size:12px}.admin-back-link{color:var(--accent);border-radius:var(--radius-sm);border:1px solid var(--border);white-space:nowrap;padding:4px 10px;font-size:12px;text-decoration:none}.admin-back-link:hover{background:var(--surface-2)}.admin-body{flex-direction:column;gap:32px;max-width:900px;padding:24px;display:flex}.admin-section{flex-direction:column;gap:12px;display:flex}.admin-section-title{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em;margin:0;font-size:13px;font-weight:600}.admin-create-form{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.admin-input{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);font:inherit;color:var(--text);outline:none;min-width:180px;padding:7px 10px;font-size:13px}.admin-input:focus{border-color:var(--accent)}.admin-select{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);font:inherit;color:var(--text);cursor:pointer;outline:none;padding:7px 10px;font-size:13px}.admin-select:focus{border-color:var(--accent)}.admin-btn-primary{background:var(--accent);border-radius:var(--radius-sm);font:inherit;color:#fff;cursor:pointer;white-space:nowrap;border:none;padding:7px 16px;font-size:13px;font-weight:600}.admin-btn-primary:hover:not(:disabled){background:var(--accent-darker)}.admin-btn-primary:disabled{opacity:.6;cursor:not-allowed}.admin-btn-danger{border-radius:var(--radius-sm);font:inherit;color:#e05a5a;cursor:pointer;white-space:nowrap;background:0 0;border:1px solid #e05a5a66;padding:6px 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td{background:var(--accent-soft)}.admin-date{color:var(--text-tertiary);font-size:12px}.admin-role-badge{text-transform:uppercase;letter-spacing:.04em;border-radius:999px;padding:2px 8px;font-size:11px;font-weight:600;display:inline-block}.admin-role-manager{background:var(--accent-soft);color:var(--accent-darker)}.admin-role-user{background:var(--surface-3);color:var(--text-secondary)}.admin-btn-delete{border-radius:var(--radius-sm);font:inherit;color:#e05a5a;cursor:pointer;background:0 0;border:1px solid #0000;padding:4px 10px;font-size:12px}.admin-btn-delete:hover{background:#e05a5a1a;border-color:#e05a5a66}.bug-report-description{white-space:pre-wrap;max-width:360px}.bug-report-thumb{object-fit:cover;border-radius:var(--radius-sm);border:1px solid var(--border);width:48px;height:48px;display:block}.admin-status-open{color:#e0673a}.admin-status-in_progress{color:#d6b83a}.admin-status-resolved{color:#5aaa5a}.admin-status-planned{color:#5aaee0}.admin-status-done{color:#5aaa5a}.admin-status-declined{color:#747470}.modal-overlay{z-index:400;background:#00000080;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal-box{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);width:100%;max-width:440px;max-height:85vh;padding:24px;overflow-y:auto}.modal-title{color:var(--text);margin:0 0 16px;font-size:16px;font-weight:700}.modal-form{flex-direction:column;gap:8px;display:flex}.modal-label{color:var(--text-secondary);margin-top:8px;font-size:12px;font-weight:600}.modal-textarea{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-sm);font:inherit;color:var(--text);resize:vertical;outline:none;padding:8px 10px;font-size:13px}.modal-textarea:focus{border-color:var(--accent)}.modal-file{color:var(--text-secondary);font-size:12px}.modal-file-name{color:var(--text-tertiary);font-size:12px}.modal-actions{justify-content:flex-end;gap:8px;margin-top:16px;display:flex}