:root{--background-start: #eaf7f7;--background-end: #ffffff;--node-root-bg: #2d3748;--node-root-text: #ffffff;--node-child-bg: #f7fafc;--node-child-text: #2d3748;--node-border: #e2e8f0;--node-shadow: rgba(0, 0, 0, .1);--connector-color: #cbd5e0;--toolbar-bg: #ffffff;--button-hover-bg: #edf2f7;--selected-outline: #4299e1;--selected-text-color: #ffffff;--font-family: "Inter", sans-serif}*{box-sizing:border-box}html,body,#root{width:100%;height:100%;margin:0;padding:0;overflow:hidden;font-family:var(--font-family);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{background:linear-gradient(135deg,var(--background-start),var(--background-end));transition:background .3s}.app-container{display:flex;flex-direction:column;width:100%;height:100%}.toolbar{display:flex;align-items:center;padding:8px 16px;background-color:var(--toolbar-bg);border-bottom:1px solid var(--node-border);box-shadow:0 2px 4px var(--node-shadow);z-index:10;flex-shrink:0;flex-wrap:wrap;gap:8px;transition:background-color .3s,border-color .3s}.toolbar button{background:none;border:1px solid transparent;padding:8px 12px;border-radius:6px;cursor:pointer;font-size:14px;font-weight:500;color:var(--node-child-text);transition:background-color .2s,border-color .2s,color .3s}.toolbar button:hover:not(:disabled){background-color:var(--button-hover-bg);border-color:var(--node-border)}.toolbar button:disabled{opacity:.5;cursor:not-allowed}.mind-map-canvas{flex-grow:1;width:100%;height:100%;cursor:grab;position:relative;overflow:hidden}.mind-map-canvas:active{cursor:grabbing}.mind-map-viewport{position:absolute;top:0;left:0;width:100%;height:100%;will-change:transform}.mind-map-svg{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;overflow:visible}.nodes-container{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none}.node{position:absolute;padding:10px 16px;border-radius:8px;border:1px solid var(--node-border);box-shadow:0 4px 6px -1px var(--node-shadow),0 2px 4px -1px #0000000f;cursor:pointer;-webkit-user-select:none;user-select:none;font-size:14px;font-weight:500;white-space:normal;word-break:break-word;pointer-events:all;transition:box-shadow .2s,transform .2s,clip-path .2s,border-radius .2s,width .2s,height .2s,background-color .3s,color .3s,border-color .3s;display:flex;align-items:center;justify-content:center;gap:8px;text-align:center}.node:hover{transform:translate(var(--translateX, 0),var(--translateY, -2px));box-shadow:0 10px 15px -3px var(--node-shadow),0 4px 6px -2px #0000000d}.node.root{background-color:var(--node-root-bg);color:var(--node-root-text);border-color:var(--node-root-bg)}.node.child{background-color:var(--node-child-bg);color:var(--node-child-text)}.node.selected{outline:2px solid var(--selected-outline);outline-offset:2px}.node.image-node{padding:0;background-color:transparent;color:transparent}.node.shape-oval{border-radius:50%}.node.shape-diamond{clip-path:polygon(50% 0%,100% 50%,50% 100%,0% 50%);border-radius:0}.node.shape-hexagon{clip-path:polygon(25% 0%,75% 0%,100% 50%,75% 100%,25% 100%,0% 50%);border-radius:0}.node.shape-parallelogram{clip-path:polygon(25% 0%,100% 0%,75% 100%,0% 100%);border-radius:0}.node-icon{width:16px;height:16px;fill:currentColor;flex-shrink:0}.node-input{width:100%;border:none;padding:0;margin:0;background-color:transparent;font-family:inherit;font-size:inherit;font-weight:inherit;color:inherit;text-align:center}.node-input:focus{outline:none}.connector{stroke:var(--connector-color);stroke-width:2px;fill:none;transition:stroke .3s}.side-panel{position:absolute;top:65px;right:16px;background-color:var(--toolbar-bg);border-radius:8px;border:1px solid var(--node-border);box-shadow:0 4px 12px var(--node-shadow);padding:16px;z-index:20;width:250px;display:flex;flex-direction:column;gap:16px;transition:background-color .3s,border-color .3s,box-shadow .3s}.side-panel h4{margin:0 0 8px;font-size:16px;font-weight:700;color:var(--node-child-text);transition:color .3s}.style-section{display:flex;flex-direction:column;gap:8px}.style-section label{font-size:14px;font-weight:500;color:var(--node-child-text);opacity:.8;transition:color .3s}.settings-panel select{width:100%;padding:8px;border-radius:6px;border:1px solid var(--node-border);background-color:var(--node-child-bg);color:var(--node-child-text);font-family:inherit;font-size:14px;cursor:pointer}.color-controls{display:flex;align-items:center;gap:12px}.color-controls input[type=color]{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:32px;height:32px;padding:0;border:1px solid var(--node-border);border-radius:6px;cursor:pointer;background-color:transparent}.color-controls input[type=color]::-webkit-color-swatch-wrapper{padding:0}.color-controls input[type=color]::-webkit-color-swatch{border:none;border-radius:5px}.preset-colors{display:flex;flex-wrap:wrap;gap:6px;flex:1}.color-swatch{width:20px;height:20px;border-radius:50%;border:1px solid var(--node-border);cursor:pointer;padding:0;transition:transform .1s,outline-color .2s}.color-swatch:hover{transform:scale(1.1);outline:2px solid var(--selected-outline)}.shape-selector,.icon-selector{display:flex;flex-wrap:wrap;gap:8px}.shape-swatch,.icon-swatch{width:32px;height:32px;padding:6px;border-radius:6px;border:1px solid var(--node-border);background-color:transparent;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background-color .2s,border-color .2s}.shape-swatch:hover,.icon-swatch:hover{background-color:var(--button-hover-bg)}.shape-swatch.selected,.icon-swatch.selected{border-color:var(--selected-outline);background-color:var(--selected-outline)}.shape-swatch svg,.icon-swatch svg{width:100%;height:100%;fill:var(--node-child-text);transition:fill .3s}.shape-swatch.selected svg,.icon-swatch.selected svg{fill:var(--selected-text-color)}.shape-swatch svg{color:var(--node-child-text)}.remove-icon-button{background:none;border:none;padding:4px 0;margin-top:8px;cursor:pointer;font-size:13px;color:#e53e3e;font-weight:500;text-align:left;align-self:flex-start}.remove-icon-button:hover{text-decoration:underline}.line-options{display:flex;gap:8px}.line-options button{flex:1;padding:6px;border-radius:6px;border:1px solid var(--node-border);background-color:transparent;cursor:pointer;font-size:13px;transition:background-color .2s,border-color .2s,color .3s;color:var(--node-child-text)}.line-options button:hover{background-color:var(--button-hover-bg)}.line-options button.selected{border-color:var(--selected-outline);background-color:var(--selected-outline);color:var(--selected-text-color);font-weight:500}.arrowhead-selector{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px}.arrowhead-selector button{padding:6px;border-radius:6px;border:1px solid var(--node-border);background-color:transparent;cursor:pointer;transition:background-color .2s,border-color .2s;color:var(--node-child-text)}.arrowhead-selector button:hover{background-color:var(--button-hover-bg)}.arrowhead-selector button.selected{border-color:var(--selected-outline);background-color:var(--selected-outline);color:var(--selected-text-color);font-weight:500}.arrowhead-swatch{width:40px;height:32px;display:flex;align-items:center;justify-content:center}.arrowhead-swatch svg{width:100%;height:100%;color:var(--node-child-text)}.reset-button,.action-button{width:100%;background:none;border:1px solid var(--node-border);padding:8px 12px;border-radius:6px;cursor:pointer;font-size:14px;font-weight:500;color:var(--node-child-text);transition:background-color .2s,color .3s,border-color .2s}.reset-button:hover,.action-button:hover{background-color:var(--button-hover-bg)}.action-button.danger{color:#e53e3e;border-color:#fed7d7}.action-button.danger:hover{background-color:#fed7d7;color:#9b2c2c}.theme-list{display:flex;flex-direction:column;gap:8px}.theme-item{display:flex;align-items:center;justify-content:space-between;width:100%;padding:10px;border:1px solid var(--node-border);border-radius:6px;background:none;cursor:pointer;text-align:left;transition:background-color .2s,border-color .2s}.theme-item:hover{background-color:var(--button-hover-bg)}.theme-item.selected{border-color:var(--selected-outline);background-color:var(--selected-outline)}.theme-item.selected .theme-name{color:var(--selected-text-color)}.theme-name{font-size:14px;font-weight:500;color:var(--node-child-text);transition:color .3s}.theme-palette{display:flex;gap:4px}.theme-color-swatch{width:18px;height:18px;border-radius:50%;border:1px solid rgba(0,0,0,.1)}.size-controls{display:flex;align-items:center;justify-content:space-between;gap:8px}.size-input-wrapper{display:flex;align-items:center;gap:4px;border:1px solid var(--node-border);border-radius:6px;padding:0 8px;flex:1}.size-input-wrapper span{font-size:12px;font-weight:700;color:var(--node-child-text);opacity:.7}.size-controls input[type=number]{width:100%;border:none;background:transparent;padding:8px 0;font-family:inherit;font-size:14px;color:var(--node-child-text);-moz-appearance:textfield}.size-controls input[type=number]::-webkit-outer-spin-button,.size-controls input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.size-controls input[type=number]:focus{outline:none}.lock-button{padding:6px;border-radius:6px;border:1px solid var(--node-border);background-color:transparent;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--node-child-text);opacity:.7}.lock-button:hover{background-color:var(--button-hover-bg)}.lock-button.locked{color:var(--selected-outline);border-color:var(--selected-outline);opacity:1}.lock-button svg{width:20px;height:20px}.slider-control{display:flex;align-items:center;gap:8px}.slider-control input[type=range]{flex-grow:1}.slider-control input[type=number]{width:50px;padding:4px 8px;border:1px solid var(--node-border);border-radius:6px;background-color:var(--node-child-bg);color:var(--node-child-text);-moz-appearance:textfield}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.modal-content{background:var(--toolbar-bg);padding:24px;border-radius:8px;width:90%;max-width:500px;box-shadow:0 5px 15px #0000004d;display:flex;flex-direction:column;gap:16px;color:var(--node-child-text)}.modal-content h3{margin:0;font-size:18px}.modal-content textarea{width:100%;min-height:100px;border:1px solid var(--node-border);border-radius:6px;padding:8px;font-family:inherit;font-size:14px;resize:vertical;background-color:var(--node-child-bg);color:var(--node-child-text)}.modal-actions{display:flex;justify-content:flex-end;gap:8px}.modal-actions button{background:var(--node-root-bg);color:var(--node-root-text);border:none;font-family:inherit;padding:8px 12px;border-radius:6px;cursor:pointer;font-size:14px;font-weight:500}.modal-actions button.secondary{background:var(--button-hover-bg);color:var(--node-child-text)}.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;min-height:150px}.spinner{border:4px solid var(--button-hover-bg);border-top:4px solid var(--node-root-bg);border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}