*{margin:0;padding:0;box-sizing:border-box}:root{--bg-primary:#ffffff;--bg-secondary:#f8f8f8;--bg-tertiary:#f0f0f0;--bg-hover:#e8e8e8;--text-primary:#111111;--text-secondary:#333333;--text-muted:#888888;--accent:#2563eb;--accent-hover:#1d4ed8;--border:#d0d0d0;--success:#16a34a;--warning:#ca8a04;--danger:#dc2626;--shape-bg:#ffffff;--shape-header-bg:#f0f0f0;--shape-stroke:#222222;--shape-text:#000000;--shape-member-text:#222222;--shape-separator:#222222;--shape-fill-solid:#222222;--shape-fill-none-stroke:#222222;--arrow-fill:#222222;--arrow-stroke:#222222;--arrow-hollow-fill:#ffffff;--grid-line:#ebebeb;--grid-line-major:#dcdcdc;--canvas-bg:#ffffff;--connection-stroke:#333333;--swimlane-text:#000000;--swimlane-border:#999999;--swimlane-header-bg:#f0f0f0;--swimlane-bg:#fafafa;--swimlane-divider:#bbbbbb;--toolbar-height:44px;--panel-header-height:32px;--font-mono:'Cascadia Code','Fira Code','JetBrains Mono','Consolas',monospace;--font-sans:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif}[data-theme="dark"]{--bg-primary:#1e1e2e;--bg-secondary:#252536;--bg-tertiary:#2a2a3d;--bg-hover:#333350;--text-primary:#cdd6f4;--text-secondary:#a6adc8;--text-muted:#6c7086;--accent:#89b4fa;--accent-hover:#74c7ec;--border:#45475a;--success:#a6e3a1;--warning:#f9e2af;--danger:#f38ba8;--shape-bg:#1e1e2e;--shape-header-bg:#2a2a3d;--shape-stroke:#cccccc;--shape-text:#eeeeee;--shape-member-text:#cccccc;--shape-separator:#cccccc;--shape-fill-solid:#cccccc;--shape-fill-none-stroke:#cccccc;--arrow-fill:#cccccc;--arrow-stroke:#cccccc;--arrow-hollow-fill:#1e1e2e;--grid-line:#333348;--grid-line-major:#3a3a52;--canvas-bg:#1e1e2e;--connection-stroke:#aaaaaa;--swimlane-text:#eeeeee;--swimlane-border:#666666;--swimlane-header-bg:#2a2a3d;--swimlane-bg:#232335;--swimlane-divider:#555555}html,body{height:100%;font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);overflow:hidden}#app{display:flex;flex-direction:column;height:100vh}#toolbar{display:flex;align-items:center;justify-content:space-between;height:var(--toolbar-height);background:var(--bg-secondary);border-bottom:1px solid var(--border);padding:0 8px;flex-shrink:0;z-index:100}.toolbar-left,.toolbar-right{display:flex;align-items:center;gap:4px}.app-title{font-weight:700;font-size:14px;color:var(--accent);padding:0 8px;letter-spacing:0.5px}.toolbar-separator{width:1px;height:24px;background:var(--border);margin:0 4px}.toolbar-btn{background:transparent;border:1px solid transparent;color:var(--text-primary);padding:4px 10px;border-radius:4px;cursor:pointer;font-size:12px;font-family:var(--font-sans);white-space:nowrap;transition:all 0.15s}.toolbar-btn:hover{background:var(--bg-hover);border-color:var(--border)}.toolbar-btn:active{background:var(--bg-tertiary)}.toolbar-btn.active{background:var(--accent);color:var(--bg-primary)}.toolbar-shapes{display:flex;gap:2px}.shape-btn{display:flex;align-items:center;gap:4px;background:transparent;border:1px solid transparent;color:var(--text-primary);padding:4px 8px;border-radius:4px;cursor:pointer;font-size:11px;font-family:var(--font-sans);transition:all 0.15s}.shape-btn:hover{background:var(--bg-hover);border-color:var(--border)}.shape-btn.active{background:var(--accent);color:var(--bg-primary);border-color:var(--accent)}.shape-btn svg{width:16px;height:16px}.dropdown{position:relative}.dropdown-menu{display:none;position:absolute;top:100%;left:0;background:var(--bg-secondary);border:1px solid var(--border);border-radius:6px;padding:4px;min-width:180px;z-index:200;box-shadow:0 8px 24px rgba(0,0,0,0.4)}.dropdown-menu.show{display:block}.dropdown-menu button{display:block;width:100%;text-align:left;background:transparent;border:none;color:var(--text-primary);padding:6px 12px;border-radius:4px;cursor:pointer;font-size:12px;font-family:var(--font-sans)}.dropdown-menu button:hover{background:var(--bg-hover)}.dropdown-menu button.active{color:var(--accent)}#zoom-level{font-size:11px;color:var(--text-secondary);min-width:40px;text-align:center}#main-content{display:flex;flex:1;overflow:hidden}#file-panel{width:220px;min-width:40px;max-width:400px;display:flex;flex-direction:column;background:var(--bg-primary);border-right:1px solid var(--border);flex-shrink:0;transition:width 0.2s ease}#file-panel.collapsed{width:40px !important;min-width:40px;overflow:hidden}#file-panel.collapsed .panel-header-actions,#file-panel.collapsed #file-tree,#file-panel.collapsed .panel-title{display:none}#file-panel.collapsed .panel-header{justify-content:center;padding:0}#file-panel.collapsed .panel-header-left{justify-content:center;width:100%}#file-panel-resizer{width:3px;cursor:col-resize;background:transparent;transition:background 0.15s;flex-shrink:0}#file-panel-resizer:hover,#file-panel-resizer.dragging{background:var(--accent)}#file-panel .panel-header{display:flex;align-items:center;justify-content:space-between;height:36px;padding:0 6px 0 4px;background:var(--bg-secondary);border-bottom:1px solid var(--border);flex-shrink:0;gap:4px}.panel-header-left{display:flex;align-items:center;gap:4px;min-width:0}.panel-title{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:0.5px;color:var(--text-secondary);white-space:nowrap}.panel-toggle{background:none;border:none;color:var(--text-secondary);cursor:pointer;font-size:14px;padding:4px 6px;border-radius:4px;line-height:1;flex-shrink:0}.panel-toggle:hover{background:var(--bg-hover);color:var(--text-primary)}.panel-header-actions{display:flex;align-items:center;gap:1px;flex-shrink:0}.panel-action-btn{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:4px 5px;border-radius:4px;line-height:1;display:flex;align-items:center;justify-content:center}.panel-action-btn:hover{background:var(--bg-hover);color:var(--text-primary)}.panel-action-btn svg{display:block}#file-tree{flex:1;overflow-y:auto;overflow-x:hidden;padding:4px 0;font-size:12px}#file-tree::-webkit-scrollbar{width:6px}#file-tree::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}#file-tree::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.tree-item{display:flex;align-items:center;padding:3px 8px 3px 8px;cursor:pointer;user-select:none;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text-secondary);border-radius:4px;margin:1px 4px;transition:background 0.1s;font-size:12px;height:24px}.tree-item:hover{background:var(--bg-hover)}.tree-item.active{background:var(--bg-tertiary);color:var(--accent);font-weight:500}.tree-icon{width:16px;text-align:center;margin-right:5px;font-size:12px;flex-shrink:0;opacity:0.8}.tree-name{overflow:hidden;text-overflow:ellipsis;flex:1}.tree-folder-children{padding-left:0}.tree-folder-children.collapsed{display:none}.tree-folder.folder-selected{background:var(--bg-hover);outline:1px dashed var(--accent);outline-offset:-1px}.tree-item.dragging{opacity:0.4}.tree-item.drop-target{background:var(--accent);color:white;border-radius:4px}.tree-rename-input{background:var(--bg-tertiary);border:1px solid var(--accent);color:var(--text-primary);font-size:12px;padding:1px 4px;border-radius:3px;width:100%;outline:none;font-family:var(--font-sans)}.new-file-dialog{position:fixed;top:0;left:0;width:100%;height:100%;z-index:600;display:flex;align-items:center;justify-content:center}.dialog-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.4)}.dialog-box{position:relative;background:var(--bg-secondary);border:1px solid var(--border);border-radius:10px;padding:20px;width:320px;box-shadow:0 12px 40px rgba(0,0,0,0.5)}.dialog-title{font-size:15px;font-weight:700;margin-bottom:14px;color:var(--text-primary)}.dialog-box label{display:block;font-size:11px;color:var(--text-muted);margin-bottom:4px;margin-top:10px}.dialog-box label:first-of-type{margin-top:0}.dialog-box input,.dialog-box select{width:100%;background:var(--bg-tertiary);border:1px solid var(--border);color:var(--text-primary);padding:6px 10px;border-radius:5px;font-size:13px;font-family:var(--font-sans)}.dialog-box input:focus,.dialog-box select:focus{outline:none;border-color:var(--accent)}.dialog-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}.dialog-actions button{padding:6px 16px;border:1px solid var(--border);border-radius:5px;background:var(--bg-tertiary);color:var(--text-primary);cursor:pointer;font-size:12px;font-family:var(--font-sans)}.dialog-actions button:hover{background:var(--bg-hover)}.dialog-actions button.primary{background:var(--accent);border-color:var(--accent);color:white}.dialog-actions button.primary:hover{opacity:0.9}.file-context-menu{position:fixed;z-index:500}#editor-panel{width:30%;min-width:40px;display:flex;flex-direction:column;background:var(--bg-primary);border-right:1px solid var(--border);transition:width 0.2s ease,min-width 0.2s ease}#editor-panel.collapsed{width:40px !important;min-width:40px;overflow:hidden}#editor-panel.collapsed #code-editor,#editor-panel.collapsed .panel-header-actions,#editor-panel.collapsed .panel-title{display:none}#editor-panel.collapsed .panel-header{justify-content:center;padding:0}#editor-panel.collapsed .panel-header-left{justify-content:center;width:100%}.panel-header{display:flex;align-items:center;justify-content:space-between;height:36px;padding:0 6px 0 4px;background:var(--bg-secondary);border-bottom:1px solid var(--border);font-size:12px;color:var(--text-secondary);flex-shrink:0;gap:4px}.panel-btn{background:transparent;border:none;color:var(--text-muted);cursor:pointer;font-size:11px;padding:2px 6px;border-radius:3px;font-family:var(--font-sans)}.panel-btn:hover{color:var(--text-primary);background:var(--bg-hover)}#code-editor{flex:1;overflow:auto;background:var(--bg-primary)}#code-editor .cm-editor{height:100%;font-family:var(--font-mono);font-size:13px}#code-editor .cm-editor .cm-scroller{font-family:var(--font-mono)}#code-editor .cm-editor.cm-focused{outline:none}#code-editor .CodeMirror{height:100%;font-family:var(--font-mono);font-size:13px;background:var(--bg-primary);color:var(--text-primary)}#code-editor .CodeMirror-gutters{background:var(--bg-secondary);border-right:1px solid var(--border)}#code-editor .CodeMirror-linenumber{color:var(--text-muted)}#code-editor .CodeMirror-cursor{border-left-color:var(--text-primary)}#code-editor .CodeMirror-selected{background:var(--bg-hover) !important}#code-editor .CodeMirror-activeline-background{background:var(--bg-hover)}#panel-resizer{width:4px;cursor:col-resize;background:var(--border);transition:background 0.15s;flex-shrink:0}#panel-resizer:hover,#panel-resizer.dragging{background:var(--accent)}#canvas-panel{flex:1;display:flex;flex-direction:column;background:var(--bg-tertiary);min-width:300px}#canvas-container{flex:1;overflow:hidden;position:relative;cursor:default;background:var(--canvas-bg)}#canvas{width:100%;height:100%}#canvas .element{cursor:move}#canvas .element:hover .element-border{stroke:var(--accent);stroke-width:2}#canvas .element.selected .element-border{stroke:var(--accent);stroke-width:2;stroke-dasharray:none}.resize-handle{fill:var(--accent);stroke:white;stroke-width:1;cursor:nwse-resize;opacity:0;transition:opacity 0.15s}.element.selected .resize-handle{opacity:1}.connection-point{fill:var(--accent);stroke:white;stroke-width:1.5;r:5;opacity:0;cursor:crosshair;transition:opacity 0.15s}.element:hover .connection-point,.element.selected .connection-point{opacity:1}.waypoint-handle{fill:var(--accent);stroke:white;stroke-width:1;opacity:0;cursor:move;transition:opacity 0.15s}.connection.selected .waypoint-handle{opacity:1}.waypoint-handle:hover{r:6;fill:var(--accent-hover)}.endpoint-handle{fill:#e91e63;stroke:white;stroke-width:1.5;cursor:move;opacity:0;pointer-events:none}.connection.selected .endpoint-handle{opacity:1;pointer-events:all}.endpoint-handle:hover{r:7;fill:#c2185b}.connection-point:hover{r:7;fill:var(--accent-hover)}.resize-handle{fill:white;stroke:var(--accent-color);stroke-width:1.5;cursor:se-resize;opacity:0;pointer-events:none}.resize-handle[data-resize="e"]{cursor:e-resize}.resize-handle[data-resize="s"]{cursor:s-resize}.resize-handle[data-resize="se"]{cursor:se-resize}.element.selected .resize-handle{opacity:1;pointer-events:all}.element.selected .resize-handle:hover{fill:var(--accent-color)}#minimap{position:absolute;bottom:10px;right:10px;width:180px;height:130px;border:1px solid var(--border-color,#ccc);border-radius:6px;background:rgba(255,255,255,0.9);box-shadow:0 2px 8px rgba(0,0,0,0.15);z-index:20;cursor:pointer;display:none}[data-theme="dark"] #minimap{background:rgba(30,30,30,0.9)}#minimap.visible{display:block}.swimlane-resize-handle{cursor:col-resize;fill:transparent;pointer-events:all}.swimlane-resize-handle:hover{fill:var(--accent-color);fill-opacity:0.3}.connection{cursor:pointer}.connection .connection-line{fill:none;stroke:var(--connection-stroke);stroke-width:1.5}.connection:hover .connection-line{stroke:var(--accent);stroke-width:2}.connection.selected .connection-line{stroke:var(--accent);stroke-width:2}.connection .connection-hit-area{fill:none;stroke:transparent;stroke-width:12;cursor:pointer}.connection .connection-label{font-size:11px;fill:var(--text-secondary);font-family:var(--font-sans)}.connection .multiplicity-label{font-size:10px;fill:var(--text-muted);font-family:var(--font-sans)}.uml-class-bg{fill:var(--shape-bg);stroke:var(--shape-stroke);stroke-width:1.5;rx:4}.uml-class-header-bg{fill:var(--shape-header-bg);rx:4}.uml-class-name{font-family:var(--font-sans);font-weight:600;font-size:13px;fill:var(--shape-text);text-anchor:middle}.uml-class-stereotype{font-family:var(--font-sans);font-size:10px;fill:var(--text-muted);text-anchor:middle;font-style:italic}.uml-class-member{font-family:var(--font-mono);font-size:11px;fill:var(--shape-member-text)}.uml-class-separator{stroke:var(--shape-separator);stroke-width:1}.uml-actor-body{stroke:var(--shape-stroke);stroke-width:1.5;fill:none}.uml-actor-label{font-family:var(--font-sans);font-size:11px;fill:var(--shape-text);text-anchor:middle}.uml-usecase-ellipse{fill:var(--shape-bg);stroke:var(--shape-stroke);stroke-width:1.5}.uml-usecase-label{font-family:var(--font-sans);font-size:12px;fill:var(--shape-text);text-anchor:middle}.uml-system-boundary{fill:none;stroke:var(--shape-stroke);stroke-width:1.5;stroke-dasharray:6 3;rx:8}.uml-system-label{font-family:var(--font-sans);font-size:13px;font-weight:600;fill:var(--shape-text)}.uml-lifeline-box{fill:var(--shape-bg);stroke:var(--shape-stroke);stroke-width:1.5;rx:4}.uml-lifeline-name{font-family:var(--font-sans);font-size:12px;font-weight:600;fill:var(--shape-text);text-anchor:middle}.uml-lifeline-dash{stroke:var(--shape-stroke);stroke-width:1;stroke-dasharray:6 4}.uml-activation-bar{fill:var(--shape-header-bg);stroke:var(--shape-stroke);stroke-width:1}.uml-activity-node{fill:var(--shape-bg);stroke:var(--shape-stroke);stroke-width:1.5;rx:12}.uml-activity-label{font-family:var(--font-sans);font-size:12px;fill:var(--shape-text);text-anchor:middle}.uml-decision-node{fill:var(--shape-bg);stroke:var(--shape-stroke);stroke-width:1.5}.uml-initial-node{fill:var(--shape-fill-solid)}.uml-final-node-outer{fill:none;stroke:var(--shape-fill-none-stroke);stroke-width:1.5}.uml-final-node-inner{fill:var(--shape-fill-solid)}.uml-fork-bar{fill:var(--shape-fill-solid)}.uml-component-bg{fill:var(--shape-bg);stroke:var(--shape-stroke);stroke-width:1.5;rx:4}.uml-component-name{font-family:var(--font-sans);font-weight:600;font-size:13px;fill:var(--shape-text);text-anchor:middle}.uml-component-tab{fill:var(--shape-bg);stroke:var(--shape-stroke);stroke-width:1}.uml-interface-circle{fill:none;stroke:var(--shape-stroke);stroke-width:1.5}.uml-port-rect{fill:var(--shape-bg);stroke:var(--shape-stroke);stroke-width:1}.uml-state-bg{fill:var(--shape-bg);stroke:var(--shape-stroke);stroke-width:1.5;rx:12}.uml-state-name{font-family:var(--font-sans);font-weight:600;font-size:13px;fill:var(--shape-text);text-anchor:middle}.uml-state-separator{stroke:var(--shape-separator);stroke-width:1}.uml-state-action{font-family:var(--font-mono);font-size:11px;fill:var(--shape-member-text)}.arrow-solid{fill:var(--arrow-fill)}.arrow-hollow{fill:var(--arrow-hollow-fill);stroke:var(--arrow-stroke);stroke-width:1.5}.arrow-solid-stroke{fill:var(--arrow-fill);stroke:var(--arrow-stroke);stroke-width:1.5}.arrowhead-filled{fill:var(--arrow-fill);stroke:none}.arrowhead-hollow{fill:var(--arrow-hollow-fill);stroke:var(--arrow-stroke);stroke-width:1.5}.connection:hover .arrowhead-filled{fill:var(--accent)}.connection.selected .arrowhead-filled{fill:var(--accent)}.grid-line-minor{stroke:var(--grid-line)}.grid-line-major{stroke:var(--grid-line-major)}.swimlane-bg{pointer-events:none}.swimlane-header{pointer-events:none}.swimlane-label{pointer-events:none;user-select:none}#swimlane-layer{pointer-events:none}#temp-connection{fill:none;stroke:var(--accent);stroke-width:2;stroke-dasharray:6 3;pointer-events:none}#selection-rect{fill:rgba(137,180,250,0.1);stroke:var(--accent);stroke-width:1;stroke-dasharray:4 2}.context-menu{position:fixed;background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;padding:4px;min-width:160px;z-index:300;box-shadow:0 8px 24px rgba(0,0,0,0.5)}.context-menu.hidden{display:none}.context-menu button{display:block;width:100%;text-align:left;background:transparent;border:none;color:var(--text-primary);padding:6px 12px;border-radius:4px;cursor:pointer;font-size:12px;font-family:var(--font-sans)}.context-menu button:hover{background:var(--bg-hover)}.context-menu hr{border:none;border-top:1px solid var(--border);margin:4px 0}#property-panel{position:fixed;right:16px;top:60px;width:280px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,0.4);z-index:150;max-height:70vh;overflow:auto}#property-panel.hidden{display:none}.property-header{display:flex;align-items:center;justify-content:space-between;padding:8px 12px;border-bottom:1px solid var(--border);font-size:12px;font-weight:600}.property-header button{background:transparent;border:none;color:var(--text-muted);cursor:pointer;font-size:16px;padding:0 4px}.property-header button:hover{color:var(--text-primary)}#property-content{padding:12px}#property-content label{display:block;font-size:11px;color:var(--text-muted);margin-bottom:4px;margin-top:8px}#property-content label:first-child{margin-top:0}#property-content input,#property-content select,#property-content textarea{width:100%;background:var(--bg-tertiary);border:1px solid var(--border);color:var(--text-primary);padding:4px 8px;border-radius:4px;font-size:12px;font-family:var(--font-sans)}#property-content textarea{font-family:var(--font-mono);min-height:80px;resize:vertical}#property-content input:focus,#property-content select:focus,#property-content textarea:focus{outline:none;border-color:var(--accent)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.dragging-overlay{position:fixed;top:0;left:0;width:100%;height:100%;z-index:500;cursor:col-resize}#canvas-container.panning{cursor:grabbing}#canvas-container.connecting{cursor:crosshair}.tooltip{position:fixed;background:var(--bg-secondary);color:var(--text-primary);padding:4px 8px;border-radius:4px;font-size:11px;border:1px solid var(--border);pointer-events:none;z-index:400;box-shadow:0 4px 12px rgba(0,0,0,0.3)}.connection-type-selector{position:fixed;background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;padding:4px;z-index:300;box-shadow:0 8px 24px rgba(0,0,0,0.5)}.connection-type-selector button{display:block;width:100%;text-align:left;background:transparent;border:none;color:var(--text-primary);padding:6px 12px;border-radius:4px;cursor:pointer;font-size:12px;font-family:var(--font-sans)}.connection-type-selector button:hover{background:var(--bg-hover)}.toast{position:fixed;bottom:16px;left:50%;transform:translateX(-50%);background:var(--bg-secondary);color:var(--text-primary);padding:8px 16px;border-radius:6px;border:1px solid var(--border);font-size:12px;z-index:400;box-shadow:0 4px 12px rgba(0,0,0,0.3);animation:toast-in 0.3s ease,toast-out 0.3s ease 2.7s forwards}@keyframes toast-in{from{opacity:0;transform:translateX(-50%) translateY(10px)}to{opacity:1;transform:translateX(-50%) translateY(0)}}@keyframes toast-out{from{opacity:1}to{opacity:0}}.btn-run{background:var(--accent) !important;color:#fff !important;border-radius:4px !important;padding:2px 8px !important;font-weight:600}.btn-run:hover{background:var(--accent-hover) !important}.btn-run svg{fill:#fff}#mobile-bottom-bar,#mobile-more-menu{display:none}@media (max-width:768px){#toolbar{display:flex;height:40px;padding:0 4px;overflow:visible}#toolbar .toolbar-right{display:none}#toolbar .toolbar-shapes{display:none}#toolbar .toolbar-separator{display:none}.app-title{font-size:13px;padding:0 4px}#main-content{flex-direction:column;position:relative}#file-panel{position:fixed;top:40px;left:0;bottom:48px;width:280px !important;max-width:80vw;z-index:200;transform:translateX(-100%);transition:transform 0.25s ease;border-right:1px solid var(--border);box-shadow:4px 0 20px rgba(0,0,0,0.15)}#file-panel.mobile-open{transform:translateX(0)}#file-panel.collapsed{width:280px !important;transform:translateX(-100%)}#file-panel.collapsed.mobile-open{transform:translateX(0)}#file-panel.collapsed .panel-header-actions,#file-panel.collapsed #file-tree,#file-panel.collapsed .panel-title{display:flex}#file-panel.collapsed #file-tree{display:block}#file-panel-resizer{display:none}#editor-panel{position:fixed;left:0;right:0;bottom:48px;height:45vh;width:100% !important;z-index:200;transform:translateY(100%);transition:transform 0.25s ease;border-top:2px solid var(--accent);box-shadow:0 -4px 20px rgba(0,0,0,0.15);border-right:none}#editor-panel.mobile-open{transform:translateY(0)}#editor-panel.collapsed{width:100% !important;transform:translateY(100%)}#editor-panel.collapsed.mobile-open{transform:translateY(0)}#editor-panel.collapsed #code-editor,#editor-panel.collapsed .panel-header-actions,#editor-panel.collapsed .panel-title{display:flex}#editor-panel.collapsed #code-editor{display:block}#panel-resizer{display:none}#editor-panel .panel-header{cursor:default}#canvas-panel{flex:1;width:100% !important}#mobile-bottom-bar{display:flex;position:fixed;bottom:0;left:0;right:0;height:48px;background:var(--bg-secondary);border-top:1px solid var(--border);z-index:300;align-items:center;justify-content:space-around;padding:0}.mobile-tab{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;flex:1;height:100%;background:none;border:none;color:var(--text-muted);font-size:9px;font-family:var(--font-sans);cursor:pointer;transition:color 0.15s;padding:4px 0}.mobile-tab.active{color:var(--accent)}.mobile-tab svg{width:20px;height:20px}.mobile-overlay{position:fixed;top:40px;left:0;right:0;bottom:48px;background:rgba(0,0,0,0.4);z-index:199;display:none}.mobile-overlay.visible{display:block}#mobile-more-menu{display:none}#mobile-more-menu:not(.hidden){display:block}.mobile-menu-backdrop{position:fixed;inset:0;background:rgba(0,0,0,0.4);z-index:299}.mobile-menu-sheet{position:fixed;bottom:48px;left:0;right:0;background:var(--bg-primary);border-top:1px solid var(--border);border-radius:12px 12px 0 0;z-index:301;padding:12px;box-shadow:0 -8px 30px rgba(0,0,0,0.2);animation:slide-up 0.25s ease}@keyframes slide-up{from{transform:translateY(100%)}to{transform:translateY(0)}}.mobile-menu-header{display:flex;justify-content:space-between;align-items:center;padding:0 4px 8px;border-bottom:1px solid var(--border);margin-bottom:8px}.mobile-menu-header span{font-weight:600;font-size:14px;color:var(--text-primary)}.mobile-menu-header button{background:none;border:none;font-size:20px;color:var(--text-muted);cursor:pointer}.mobile-menu-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}.mobile-menu-item{display:flex;align-items:center;justify-content:center;padding:10px 8px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;color:var(--text-primary);font-size:12px;font-family:var(--font-sans);cursor:pointer;transition:background 0.15s}.mobile-menu-item:active{background:var(--bg-hover)}.dropdown-menu{left:0;right:auto;min-width:200px}.toast{bottom:60px}#context-menu{max-width:200px}#minimap{width:120px !important;height:90px !important}#property-panel{left:10px !important;right:10px !important;width:auto !important;bottom:60px}}