@charset "UTF-8";.react-flow{direction:ltr;--xy-edge-stroke-default: #b1b1b7;--xy-edge-stroke-width-default: 1;--xy-edge-stroke-selected-default: #555;--xy-connectionline-stroke-default: #b1b1b7;--xy-connectionline-stroke-width-default: 1;--xy-attribution-background-color-default: rgba(255, 255, 255, .5);--xy-minimap-background-color-default: #fff;--xy-minimap-mask-background-color-default: rgba(240, 240, 240, .6);--xy-minimap-mask-stroke-color-default: transparent;--xy-minimap-mask-stroke-width-default: 1;--xy-minimap-node-background-color-default: #e2e2e2;--xy-minimap-node-stroke-color-default: transparent;--xy-minimap-node-stroke-width-default: 2;--xy-background-color-default: transparent;--xy-background-pattern-dots-color-default: #91919a;--xy-background-pattern-lines-color-default: #eee;--xy-background-pattern-cross-color-default: #e2e2e2;background-color:var(--xy-background-color, var(--xy-background-color-default));--xy-node-color-default: inherit;--xy-node-border-default: 1px solid #1a192b;--xy-node-background-color-default: #fff;--xy-node-group-background-color-default: rgba(240, 240, 240, .25);--xy-node-boxshadow-hover-default: 0 1px 4px 1px rgba(0, 0, 0, .08);--xy-node-boxshadow-selected-default: 0 0 0 .5px #1a192b;--xy-node-border-radius-default: 3px;--xy-handle-background-color-default: #1a192b;--xy-handle-border-color-default: #fff;--xy-selection-background-color-default: rgba(0, 89, 220, .08);--xy-selection-border-default: 1px dotted rgba(0, 89, 220, .8);--xy-controls-button-background-color-default: #fefefe;--xy-controls-button-background-color-hover-default: #f4f4f4;--xy-controls-button-color-default: inherit;--xy-controls-button-color-hover-default: inherit;--xy-controls-button-border-color-default: #eee;--xy-controls-box-shadow-default: 0 0 2px 1px rgba(0, 0, 0, .08);--xy-edge-label-background-color-default: #ffffff;--xy-edge-label-color-default: inherit;--xy-resize-background-color-default: #3367d9}.react-flow.dark{--xy-edge-stroke-default: #3e3e3e;--xy-edge-stroke-width-default: 1;--xy-edge-stroke-selected-default: #727272;--xy-connectionline-stroke-default: #b1b1b7;--xy-connectionline-stroke-width-default: 1;--xy-attribution-background-color-default: rgba(150, 150, 150, .25);--xy-minimap-background-color-default: #141414;--xy-minimap-mask-background-color-default: rgba(60, 60, 60, .6);--xy-minimap-mask-stroke-color-default: transparent;--xy-minimap-mask-stroke-width-default: 1;--xy-minimap-node-background-color-default: #2b2b2b;--xy-minimap-node-stroke-color-default: transparent;--xy-minimap-node-stroke-width-default: 2;--xy-background-color-default: #141414;--xy-background-pattern-dots-color-default: #777;--xy-background-pattern-lines-color-default: #777;--xy-background-pattern-cross-color-default: #777;--xy-node-color-default: #f8f8f8;--xy-node-border-default: 1px solid #3c3c3c;--xy-node-background-color-default: #1e1e1e;--xy-node-group-background-color-default: rgba(240, 240, 240, .25);--xy-node-boxshadow-hover-default: 0 1px 4px 1px rgba(255, 255, 255, .08);--xy-node-boxshadow-selected-default: 0 0 0 .5px #999;--xy-handle-background-color-default: #bebebe;--xy-handle-border-color-default: #1e1e1e;--xy-selection-background-color-default: rgba(200, 200, 220, .08);--xy-selection-border-default: 1px dotted rgba(200, 200, 220, .8);--xy-controls-button-background-color-default: #2b2b2b;--xy-controls-button-background-color-hover-default: #3e3e3e;--xy-controls-button-color-default: #f8f8f8;--xy-controls-button-color-hover-default: #fff;--xy-controls-button-border-color-default: #5b5b5b;--xy-controls-box-shadow-default: 0 0 2px 1px rgba(0, 0, 0, .08);--xy-edge-label-background-color-default: #141414;--xy-edge-label-color-default: #f8f8f8}.react-flow__background{background-color:var(--xy-background-color-props, var(--xy-background-color, var(--xy-background-color-default)));pointer-events:none;z-index:-1}.react-flow__container{position:absolute;width:100%;height:100%;top:0;left:0}.react-flow__pane{z-index:1}.react-flow__pane.draggable{cursor:grab}.react-flow__pane.dragging{cursor:grabbing}.react-flow__pane.selection{cursor:pointer}.react-flow__viewport{transform-origin:0 0;z-index:2;pointer-events:none}.react-flow__renderer{z-index:4}.react-flow__selection{z-index:6}.react-flow__nodesselection-rect:focus,.react-flow__nodesselection-rect:focus-visible{outline:none}.react-flow__edge-path{stroke:var(--xy-edge-stroke, var(--xy-edge-stroke-default));stroke-width:var(--xy-edge-stroke-width, var(--xy-edge-stroke-width-default));fill:none}.react-flow__connection-path{stroke:var(--xy-connectionline-stroke, var(--xy-connectionline-stroke-default));stroke-width:var(--xy-connectionline-stroke-width, var(--xy-connectionline-stroke-width-default));fill:none}.react-flow .react-flow__edges{position:absolute}.react-flow .react-flow__edges svg{overflow:visible;position:absolute;pointer-events:none}.react-flow__edge{pointer-events:visibleStroke}.react-flow__edge.selectable{cursor:pointer}.react-flow__edge.animated path{stroke-dasharray:5;animation:dashdraw .5s linear infinite}.react-flow__edge.animated path.react-flow__edge-interaction{stroke-dasharray:none;animation:none}.react-flow__edge.inactive{pointer-events:none}.react-flow__edge.selected,.react-flow__edge:focus,.react-flow__edge:focus-visible{outline:none}.react-flow__edge.selected .react-flow__edge-path,.react-flow__edge.selectable:focus .react-flow__edge-path,.react-flow__edge.selectable:focus-visible .react-flow__edge-path{stroke:var(--xy-edge-stroke-selected, var(--xy-edge-stroke-selected-default))}.react-flow__edge-textwrapper{pointer-events:all}.react-flow__edge .react-flow__edge-text{pointer-events:none;-webkit-user-select:none;-moz-user-select:none;user-select:none}.react-flow__arrowhead polyline{stroke:var(--xy-edge-stroke, var(--xy-edge-stroke-default))}.react-flow__arrowhead polyline.arrowclosed{fill:var(--xy-edge-stroke, var(--xy-edge-stroke-default))}.react-flow__connection{pointer-events:none}.react-flow__connection .animated{stroke-dasharray:5;animation:dashdraw .5s linear infinite}svg.react-flow__connectionline{z-index:1001;overflow:visible;position:absolute}.react-flow__nodes{pointer-events:none;transform-origin:0 0}.react-flow__node{position:absolute;-webkit-user-select:none;-moz-user-select:none;user-select:none;pointer-events:all;transform-origin:0 0;box-sizing:border-box;cursor:default}.react-flow__node.selectable{cursor:pointer}.react-flow__node.draggable{cursor:grab;pointer-events:all}.react-flow__node.draggable.dragging{cursor:grabbing}.react-flow__nodesselection{z-index:3;transform-origin:left top;pointer-events:none}.react-flow__nodesselection-rect{position:absolute;pointer-events:all;cursor:grab}.react-flow__handle{position:absolute;pointer-events:none;min-width:5px;min-height:5px;width:6px;height:6px;background-color:var(--xy-handle-background-color, var(--xy-handle-background-color-default));border:1px solid var(--xy-handle-border-color, var(--xy-handle-border-color-default));border-radius:100%}.react-flow__handle.connectingfrom{pointer-events:all}.react-flow__handle.connectionindicator{pointer-events:all;cursor:crosshair}.react-flow__handle-bottom{top:auto;left:50%;bottom:0;transform:translate(-50%,50%)}.react-flow__handle-top{top:0;left:50%;transform:translate(-50%,-50%)}.react-flow__handle-left{top:50%;left:0;transform:translate(-50%,-50%)}.react-flow__handle-right{top:50%;right:0;transform:translate(50%,-50%)}.react-flow__edgeupdater{cursor:move;pointer-events:all}.react-flow__pane.selection .react-flow__panel{pointer-events:none}.react-flow__panel{position:absolute;z-index:5;margin:15px}.react-flow__panel.top{top:0}.react-flow__panel.bottom{bottom:0}.react-flow__panel.top.center,.react-flow__panel.bottom.center{left:50%;transform:translate(-15px) translate(-50%)}.react-flow__panel.left{left:0}.react-flow__panel.right{right:0}.react-flow__panel.left.center,.react-flow__panel.right.center{top:50%;transform:translateY(-15px) translateY(-50%)}.react-flow__attribution{font-size:10px;background:var(--xy-attribution-background-color, var(--xy-attribution-background-color-default));padding:2px 3px;margin:0}.react-flow__attribution a{text-decoration:none;color:#999}@keyframes dashdraw{0%{stroke-dashoffset:10}}.react-flow__edgelabel-renderer{position:absolute;width:100%;height:100%;pointer-events:none;-webkit-user-select:none;-moz-user-select:none;user-select:none;left:0;top:0}.react-flow__viewport-portal{position:absolute;width:100%;height:100%;left:0;top:0;-webkit-user-select:none;-moz-user-select:none;user-select:none}.react-flow__minimap{background:var( --xy-minimap-background-color-props, var(--xy-minimap-background-color, var(--xy-minimap-background-color-default)) )}.react-flow__minimap-svg{display:block}.react-flow__minimap-mask{fill:var( --xy-minimap-mask-background-color-props, var(--xy-minimap-mask-background-color, var(--xy-minimap-mask-background-color-default)) );stroke:var( --xy-minimap-mask-stroke-color-props, var(--xy-minimap-mask-stroke-color, var(--xy-minimap-mask-stroke-color-default)) );stroke-width:var( --xy-minimap-mask-stroke-width-props, var(--xy-minimap-mask-stroke-width, var(--xy-minimap-mask-stroke-width-default)) )}.react-flow__minimap-node{fill:var( --xy-minimap-node-background-color-props, var(--xy-minimap-node-background-color, var(--xy-minimap-node-background-color-default)) );stroke:var( --xy-minimap-node-stroke-color-props, var(--xy-minimap-node-stroke-color, var(--xy-minimap-node-stroke-color-default)) );stroke-width:var( --xy-minimap-node-stroke-width-props, var(--xy-minimap-node-stroke-width, var(--xy-minimap-node-stroke-width-default)) )}.react-flow__background-pattern.dots{fill:var( --xy-background-pattern-color-props, var(--xy-background-pattern-color, var(--xy-background-pattern-dots-color-default)) )}.react-flow__background-pattern.lines{stroke:var( --xy-background-pattern-color-props, var(--xy-background-pattern-color, var(--xy-background-pattern-lines-color-default)) )}.react-flow__background-pattern.cross{stroke:var( --xy-background-pattern-color-props, var(--xy-background-pattern-color, var(--xy-background-pattern-cross-color-default)) )}.react-flow__controls{display:flex;flex-direction:column;box-shadow:var(--xy-controls-box-shadow, var(--xy-controls-box-shadow-default))}.react-flow__controls.horizontal{flex-direction:row}.react-flow__controls-button{display:flex;justify-content:center;align-items:center;height:26px;width:26px;padding:4px;border:none;background:var(--xy-controls-button-background-color, var(--xy-controls-button-background-color-default));border-bottom:1px solid var( --xy-controls-button-border-color-props, var(--xy-controls-button-border-color, var(--xy-controls-button-border-color-default)) );color:var( --xy-controls-button-color-props, var(--xy-controls-button-color, var(--xy-controls-button-color-default)) );cursor:pointer;-webkit-user-select:none;-moz-user-select:none;user-select:none}.react-flow__controls-button svg{width:100%;max-width:12px;max-height:12px;fill:currentColor}.react-flow__edge.updating .react-flow__edge-path{stroke:#777}.react-flow__edge-text{font-size:10px}.react-flow__node.selectable:focus,.react-flow__node.selectable:focus-visible{outline:none}.react-flow__node-input,.react-flow__node-default,.react-flow__node-output,.react-flow__node-group{padding:10px;border-radius:var(--xy-node-border-radius, var(--xy-node-border-radius-default));width:150px;font-size:12px;color:var(--xy-node-color, var(--xy-node-color-default));text-align:center;border:var(--xy-node-border, var(--xy-node-border-default));background-color:var(--xy-node-background-color, var(--xy-node-background-color-default))}.react-flow__node-input.selectable:hover,.react-flow__node-default.selectable:hover,.react-flow__node-output.selectable:hover,.react-flow__node-group.selectable:hover{box-shadow:var(--xy-node-boxshadow-hover, var(--xy-node-boxshadow-hover-default))}.react-flow__node-input.selectable.selected,.react-flow__node-input.selectable:focus,.react-flow__node-input.selectable:focus-visible,.react-flow__node-default.selectable.selected,.react-flow__node-default.selectable:focus,.react-flow__node-default.selectable:focus-visible,.react-flow__node-output.selectable.selected,.react-flow__node-output.selectable:focus,.react-flow__node-output.selectable:focus-visible,.react-flow__node-group.selectable.selected,.react-flow__node-group.selectable:focus,.react-flow__node-group.selectable:focus-visible{box-shadow:var(--xy-node-boxshadow-selected, var(--xy-node-boxshadow-selected-default))}.react-flow__node-group{background-color:var(--xy-node-group-background-color, var(--xy-node-group-background-color-default))}.react-flow__nodesselection-rect,.react-flow__selection{background:var(--xy-selection-background-color, var(--xy-selection-background-color-default));border:var(--xy-selection-border, var(--xy-selection-border-default))}.react-flow__nodesselection-rect:focus,.react-flow__nodesselection-rect:focus-visible,.react-flow__selection:focus,.react-flow__selection:focus-visible{outline:none}.react-flow__controls-button:hover{background:var( --xy-controls-button-background-color-hover-props, var(--xy-controls-button-background-color-hover, var(--xy-controls-button-background-color-hover-default)) );color:var( --xy-controls-button-color-hover-props, var(--xy-controls-button-color-hover, var(--xy-controls-button-color-hover-default)) )}.react-flow__controls-button:disabled{pointer-events:none}.react-flow__controls-button:disabled svg{fill-opacity:.4}.react-flow__controls-button:last-child{border-bottom:none}.react-flow__controls.horizontal .react-flow__controls-button{border-bottom:none;border-right:1px solid var( --xy-controls-button-border-color-props, var(--xy-controls-button-border-color, var(--xy-controls-button-border-color-default)) )}.react-flow__controls.horizontal .react-flow__controls-button:last-child{border-right:none}.react-flow__resize-control{position:absolute}.react-flow__resize-control.left,.react-flow__resize-control.right{cursor:ew-resize}.react-flow__resize-control.top,.react-flow__resize-control.bottom{cursor:ns-resize}.react-flow__resize-control.top.left,.react-flow__resize-control.bottom.right{cursor:nwse-resize}.react-flow__resize-control.bottom.left,.react-flow__resize-control.top.right{cursor:nesw-resize}.react-flow__resize-control.handle{width:5px;height:5px;border:1px solid #fff;border-radius:1px;background-color:var(--xy-resize-background-color, var(--xy-resize-background-color-default));translate:-50% -50%}.react-flow__resize-control.handle.left{left:0;top:50%}.react-flow__resize-control.handle.right{left:100%;top:50%}.react-flow__resize-control.handle.top{left:50%;top:0}.react-flow__resize-control.handle.bottom{left:50%;top:100%}.react-flow__resize-control.handle.top.left,.react-flow__resize-control.handle.bottom.left{left:0}.react-flow__resize-control.handle.top.right,.react-flow__resize-control.handle.bottom.right{left:100%}.react-flow__resize-control.line{border-color:var(--xy-resize-background-color, var(--xy-resize-background-color-default));border-width:0;border-style:solid}.react-flow__resize-control.line.left,.react-flow__resize-control.line.right{width:1px;transform:translate(-50%);top:0;height:100%}.react-flow__resize-control.line.left{left:0;border-left-width:1px}.react-flow__resize-control.line.right{left:100%;border-right-width:1px}.react-flow__resize-control.line.top,.react-flow__resize-control.line.bottom{height:1px;transform:translateY(-50%);left:0;width:100%}.react-flow__resize-control.line.top{top:0;border-top-width:1px}.react-flow__resize-control.line.bottom{border-bottom-width:1px;top:100%}.react-flow__edge-textbg{fill:var(--xy-edge-label-background-color, var(--xy-edge-label-background-color-default))}.react-flow__edge-text{fill:var(--xy-edge-label-color, var(--xy-edge-label-color-default))}.hyperbook-learningmap-container{width:100%;height:100%;display:flex;flex-direction:column}.editor-toolbar{width:100%;background:#fff;border-bottom:1px solid #e5e7eb;padding:12px 24px;display:flex;justify-content:space-between;align-items:center;z-index:10;box-sizing:border-box}.toolbar-group{display:flex;gap:8px}.toolbar-button{padding:8px 16px;border:1px solid #d1d5db;border-radius:6px;background:#fff;color:#1f2937;font-size:14px;font-weight:500;cursor:pointer;display:flex;align-items:center;gap:6px;transition:all .2s}.toolbar-button:hover{background:#f3f4f6;border-color:#3b82f6}.toolbar-button.primary{background:#3b82f6;color:#fff;border-color:#3b82f6}.toolbar-button.primary:hover{background:#2563eb;border-color:#2563eb}.toolbar-button.active{background:#3b82f6;color:#fff;border-color:#3b82f6}.toolbar-button.active:hover{background:#2563eb;border-color:#2563eb}.toolbar-button:disabled{background:#f3f4f6;color:#9ca3af;border-color:#e5e7eb;cursor:not-allowed}.editor-canvas{flex:1;min-height:0;position:relative;width:100%}.react-flow__node{color:#000}.react-flow__node-background img{max-width:none}.drawer-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000b3;z-index:1002;animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideIn{0%{transform:translate(100%)}to{transform:translate(0)}}.drawer{position:fixed;top:0;right:0;bottom:0;width:500px;max-width:90vw;background:var(--color-nav, white);box-shadow:-4px 0 12px #0000001a;z-index:1003;display:flex;flex-direction:column;animation:slideIn .3s ease}header.drawer-header{background:none;box-shadow:none}.drawer-header{padding-top:24px;padding-left:24px;padding-right:24px;display:flex;justify-content:space-between;align-items:center}.drawer-title{font-size:24px;font-weight:700;margin:0}.drawer-title h2{text-decoration:none;border:none}.drawer-footer button{width:100%}.close-button{background:none;border:none;cursor:pointer;padding:4px;color:var(--color-text, #6b7280);transition:color .2s}.close-button:hover{color:var(--color-text, #1f2937)}.drawer-content{flex:1;overflow-y:auto;padding:24px}.drawer-footer{padding:24px;display:flex;gap:12px;justify-content:flex-end}.form-group{margin-bottom:20px}.form-group label{display:block;font-size:14px;font-weight:600;margin-bottom:6px;color:#374151}.form-group input[type=text],.form-group input[type=date],.form-group input[type=number],.form-group input[type=color],.form-group textarea,.form-group select{width:100%;padding:10px 12px;border:1px solid #d1d5db;border-radius:6px;font-size:14px;background:#fff;color:#1f2937;box-sizing:border-box;transition:border-color .2s}.form-group input[type=color]{height:64px}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:#3b82f6}.form-group textarea{resize:vertical;font-family:inherit}.primary-button{padding:10px 20px;background:#3b82f6;color:#fff;border:none;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;display:flex;align-items:center;gap:6px;transition:background .2s}.primary-button:hover{background:#2563eb}.secondary-button{padding:8px 16px;background:#fff;color:#1f2937;border:1px solid #d1d5db;border-radius:6px;font-size:14px;cursor:pointer;display:flex;align-items:center;gap:6px;transition:all .2s;width:100%;justify-content:center}.secondary-button:hover{background:#f3f4f6}.danger-button{padding:10px 20px;background:#ef4444;color:#fff;border:none;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;display:flex;align-items:center;gap:6px;transition:background .2s}.danger-button:hover{background:#dc2626}.drawer-button{padding:14px 20px;display:flex;align-items:center;justify-content:center;gap:8px;transition:all .2s;background:var(--color-nav, white);color:var(--color-text, #1f2937);border:1px solid var(--color-nav-border, #d1d5db);border-radius:6px;font-size:14px;cursor:pointer}.drawer-button:hover{background:var(--color-spacer, #f3f4f6);border-color:var(--color-brand, #3b82f6)}.drawer-button.locked{background:var(--color-nav, #f3f4f6);color:var(--color-text, #9ca3af);border-color:var(--color-nav-border, #e5e7eb);cursor:not-allowed}.drawer-button.started{background:#fef3c7;border-color:#f59e42;color:#b45309}.drawer-button.completed,.drawer-button.mastered{background:#d1fae5;border-color:#10b981;color:#065f46}.icon-button{padding:6px;background:none;border:1px solid var(--color-nav-border, #d1d5db);border-radius:4px;cursor:pointer;color:var(--color-text, #6b7280);transition:all .2s}.icon-button:hover{background:var(--color-spacer, #f3f4f6);color:#ef4444}.react-flow__controls-button svg.lucide{fill:none}.react-flow__controls-button{transition:all .2s;color:#000}.react-flow__controls-button:hover{background:#f3f4f6}.react-flow__controls-button:disabled{background:#f3f4f6;color:#9ca3af}.react-flow__handle{width:10px;height:10px;background:#3b82f6;border:2px solid white}.react-flow__edge.selected{outline:1px solid #3b82f6}.react-flow__node.selected{outline:2px solid #3b82f6;box-shadow:0 0 0 4px #3b82f64d}.react-flow__node-image img{width:100%}.react-flow__node-task{padding:16px 24px;border-radius:16px;border:2px solid;border-color:#3b82f6;background:#f0f7ff;box-shadow:0 4px 6px -1px #0000001a}.react-flow__node-task .icon{position:absolute;top:-10px;right:-10px;fill:#fff;stroke:#3b82f6}.react-flow__node-topic{padding:16px 24px;border-radius:16px;border:2px solid;border-color:#f59e42;background:#fffbe6;box-shadow:0 4px 6px -1px #0000001a}.react-flow__node-topic .icon{position:absolute;top:-10px;left:-10px;fill:#fff;stroke:#f59e42}.react-flow__node-topic.black,.react-flow__node-task.black{border-color:#374151;background:#f3f4f6}.react-flow__node-topic.black .icon,.react-flow__node-task.black .icon{stroke:#374151}.react-flow__node-topic.white,.react-flow__node-task.white{border-color:#9ca3af;background:#f9fafb}.react-flow__node-topic.white .icon,.react-flow__node-task.white .icon{stroke:#9ca3af}.react-flow__node-topic.lila,.react-flow__node-task.lila{border-color:#9e86ed;background:#f3e8ff}.react-flow__node-topic.lila .icon,.react-flow__node-task.lila .icon{stroke:#9e86ed}.react-flow__node-topic.pink,.react-flow__node-task.pink{border-color:#ec4899;background:#fdf2f8}.react-flow__node-topic.pink .icon,.react-flow__node-task.pink .icon{stroke:#ec4899}.react-flow__node-topic.teal,.react-flow__node-task.teal{border-color:#14b8a6;background:#e0f2fe}.react-flow__node-topic.teal .icon,.react-flow__node-task.teal .icon{stroke:#14b8a6}.react-flow__node-topic.yellow,.react-flow__node-task.yellow{border-color:#f59e42;background:#fffbeb}.react-flow__node-topic.yellow .icon,.react-flow__node-task.yellow .icon{stroke:#f59e42}.react-flow__node-topic.red,.react-flow__node-task.red{border-color:#ef4444;background:#fef2f2}.react-flow__node-topic.red .icon,.react-flow__node-task.red .icon{stroke:#ef4444}.react-flow__node-topic.blue,.react-flow__node-task.blue{border-color:#3b82f6;background:#eff6ff}.react-flow__node-topic.blue .icon,.react-flow__node-task.blue .icon{stroke:#3b82f6}.react-flow__node-task.completed,.react-flow__node-topic.completed{text-decoration:line-through;border-color:#10b981;background:#ecfdf5}.react-flow__node-task.completed .icon,.react-flow__node-topic.completed .icon{stroke:#10b981}.react-flow__node-task.locked,.react-flow__node-topic.locked{border-color:#6b7280;background:#e5e7eb}.react-flow__node-task.locked .icon,.react-flow__node-topic.locked .icon{stroke:#6b7280}.react-flow__node-task.mastered,.react-flow__node-topic.mastered{text-decoration:line-through;border-color:#10b981;background:#ecfdf5}.react-flow__node-task.mastered .icon,.react-flow__node-topic.mastered .icon{stroke:#10b981}dialog.help[open]{width:600px;max-width:90vw;border:none;border-radius:12px;box-shadow:0 10px 25px #0000001a;padding:24px;background:#fff;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);gap:16px;display:flex;flex-direction:column}dialog.help[open] table{width:100%;border-collapse:collapse}dialog.help[open] th,dialog.help[open] td{border:1px solid #e5e7eb;padding:8px;text-align:left}dialog.help[open] th{background:#f3f4f6}dialog.help[open] button{width:100%}.szh-menu__item svg{margin-right:8px}.szh-menu__submenu.active,.szh-menu__item.active{color:#3b82f6}.link-button{color:#3b82f6;text-decoration:underline;background:none;border:none;padding:0;font:inherit;cursor:pointer}.multi-node-panel{padding:8px 24px;border-bottom:1px solid #e5e7eb;background:#fff;border-radius:6px;display:flex;justify-content:space-between;align-items:center;gap:12px;box-sizing:border-box}.multi-node-panel button{padding:8px;border:none;border-radius:6px;background:#fff;color:#1f2937;font-size:10px;font-weight:500;cursor:pointer;transition:all .2s}.multi-node-panel button:hover{background:#f3f4f6;border-color:#3b82f6}.progress-panel{width:80%;padding:8px;border-radius:6px;box-shadow:0 1px 2px #0000000d;background:#fff;border:1px solid #d1d5db;display:flex;justify-content:space-between;font-size:14px;margin-bottom:4px}.progress-panel .mastered-counter,.progress-panel .completed-counter{color:#10b981;width:150px;-webkit-user-select:none;user-select:none}.progress-panel .completed-counter{display:flex;justify-content:flex-start}.progress-panel .mastered-counter{display:flex;justify-content:flex-end}.progress-panel .progress-value{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);color:#266651;-webkit-user-select:none;user-select:none;font-weight:600}.progress-panel .progress-bar-container{position:relative;width:100%;border:1px solid #d1d5db;background:#f3f4f6;border-radius:9999px;overflow:hidden}.progress-panel .progress-bar-fill{height:100%;background:#10b981;border-radius:9999px;transition:width .3s ease}.progress-panel .progress-text{font-size:12px;margin-top:4px}.szh-menu{margin:0;padding:0;list-style:none;box-sizing:border-box;width:max-content;z-index:100;border:1px solid rgba(0,0,0,.1);background-color:#fff}.szh-menu:focus{outline:none}.szh-menu__arrow{box-sizing:border-box;width:.75rem;height:.75rem;background-color:#fff;border:1px solid transparent;border-left-color:#0000001a;border-top-color:#0000001a;z-index:-1}.szh-menu__arrow--dir-left{right:-.375rem;transform:translateY(-50%) rotate(135deg)}.szh-menu__arrow--dir-right{left:-.375rem;transform:translateY(-50%) rotate(-45deg)}.szh-menu__arrow--dir-top{bottom:-.375rem;transform:translate(-50%) rotate(-135deg)}.szh-menu__arrow--dir-bottom{top:-.375rem;transform:translate(-50%) rotate(45deg)}.szh-menu__item{cursor:pointer}.szh-menu__item:focus{outline:none}.szh-menu__item--hover{background-color:#ebebeb}.szh-menu__item--focusable{cursor:default;background-color:inherit}.szh-menu__item--disabled{cursor:default;color:#aaa}.szh-menu__group{box-sizing:border-box}.szh-menu__radio-group{margin:0;padding:0;list-style:none}.szh-menu__divider{height:1px;margin:.5rem 0;background-color:#0000001f}.szh-menu-button{box-sizing:border-box}.szh-menu{-webkit-user-select:none;user-select:none;color:#212529;border:none;border-radius:.25rem;box-shadow:0 3px 7px #0002,0 .6px 2px #0000001a;min-width:10rem;padding:.5rem 0}.szh-menu__item{display:flex;align-items:center;position:relative;padding:.375rem 1.5rem}.szh-menu-container--itemTransition .szh-menu__item{transition-property:background-color,color;transition-duration:.15s;transition-timing-function:ease-in-out}.szh-menu__item--type-radio{padding-left:2.2rem}.szh-menu__item--type-radio:before{content:"○";position:absolute;left:.8rem;top:.55rem;font-size:.8rem}.szh-menu__item--type-radio.szh-menu__item--checked:before{content:"●"}.szh-menu__item--type-checkbox{padding-left:2.2rem}.szh-menu__item--type-checkbox:before{position:absolute;left:.8rem}.szh-menu__item--type-checkbox.szh-menu__item--checked:before{content:"✔"}.szh-menu__submenu>.szh-menu__item{padding-right:2.5rem}.szh-menu__submenu>.szh-menu__item:after{content:"❯";position:absolute;right:1rem}.szh-menu__header{color:#888;font-size:.8rem;padding:.2rem 1.5rem;text-transform:uppercase}@keyframes szh-menu-show-zoom{0%{opacity:.1;transform:scale(.95)}}@keyframes szh-menu-hide-zoom{to{opacity:.1;transform:scale(.95)}}.szh-menu--state-opening{animation:szh-menu-show-zoom .125s ease-out}.szh-menu--state-closing{animation:szh-menu-hide-zoom .125s ease-in forwards}.szh-menu--dir-left.szh-menu--align-start{transform-origin:right top}.szh-menu--dir-left.szh-menu--align-center{transform-origin:right center}.szh-menu--dir-left.szh-menu--align-end{transform-origin:right bottom}.szh-menu--dir-right.szh-menu--align-start{transform-origin:left top}.szh-menu--dir-right.szh-menu--align-center{transform-origin:left center}.szh-menu--dir-right.szh-menu--align-end,.szh-menu--dir-top.szh-menu--align-start{transform-origin:left bottom}.szh-menu--dir-top.szh-menu--align-center{transform-origin:center bottom}.szh-menu--dir-top.szh-menu--align-end{transform-origin:right bottom}.szh-menu--dir-bottom.szh-menu--align-start{transform-origin:left top}.szh-menu--dir-bottom.szh-menu--align-center{transform-origin:center top}.szh-menu--dir-bottom.szh-menu--align-end{transform-origin:right top}