:root{--sans:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--surface:#f7f8fb;--panel:#fff;--canvas:#eef3f8;--grid-line:#5d6d7e1f;--border:#d6dce5;--text:#526070;--text-strong:#16202c;--accent:#2563eb;--accent-soft:#e7efff;--accent-ring:#2563eb2e;--drop-zone:#2563eb14;--button-bg:#fff;--badge-bg:#f1f5f9;--badge-border:#cbd5e1;--node-bg:#fff;--node-border:#cfd8e5;--root-bg:#e8f5ee;--root-border:#69b27e;--connector:#8aa1bd;--danger:#b42318;--shadow:0 10px 24px #1f2a371c;font-family:var(--sans);color:var(--text);background:var(--surface);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{min-width:320px;margin:0;overflow:hidden}button,input{letter-spacing:0}button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}#root{width:100vw;height:100svh;overflow:hidden}.app-shell{background:var(--surface);grid-template-columns:260px minmax(0,1fr);width:100vw;height:100svh;display:grid;overflow:hidden}.app-shell.fullscreen-view{grid-template-columns:minmax(0,1fr)}.app-shell.fullscreen-view .map-sidebar,.app-shell.fullscreen-view .toolbar{display:none}.app-shell.fullscreen-view .workspace{grid-template-rows:minmax(0,1fr)}.map-sidebar{border-right:1px solid var(--border);background:var(--panel);flex-direction:column;gap:16px;min-height:0;padding:18px;display:flex;overflow:hidden}.sidebar-heading{color:var(--text-strong);justify-content:space-between;align-items:center;gap:12px;font-weight:700;display:flex}.brand-lockup{align-items:center;gap:10px;min-width:0;display:inline-flex}.app-logo{object-fit:contain;width:152px;height:36px}.icon-button,.toolbar-button,.secondary-button{border:1px solid var(--border);background:var(--button-bg);min-height:36px;color:var(--text-strong);font:inherit;cursor:pointer;border-radius:6px}.icon-button{width:36px;font-size:22px;line-height:1}.map-list{gap:4px;display:grid;overflow:auto}.map-list-item{min-height:40px;color:var(--text);font:inherit;text-align:left;cursor:pointer;background:0 0;border:1px solid #0000;border-radius:6px;grid-template-columns:24px minmax(0,1fr);align-items:center;gap:8px;padding:8px 10px;display:grid}.map-list-icon{width:24px;height:24px;color:var(--accent);background:#2563eb1a;border-radius:7px;justify-content:center;align-items:center;display:inline-flex}.map-list-icon svg{fill:none;stroke:currentColor;stroke-width:2px;stroke-linecap:round;stroke-linejoin:round;width:16px;height:16px}.map-list-title{text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}.map-list-item:hover,.map-list-item.active{border-color:var(--accent);background:var(--accent-soft);color:var(--text-strong)}.secondary-button{margin-top:auto;padding:8px 10px}button:disabled{cursor:not-allowed;opacity:.48}.workspace{grid-template-rows:auto minmax(0,1fr);min-width:0;min-height:0;display:grid;overflow:hidden}.toolbar{border-bottom:1px solid var(--border);background:var(--surface);justify-content:space-between;align-items:center;gap:16px;min-width:0;padding:14px 18px;display:flex}.map-title-input{width:min(320px,100%);min-width:180px;color:var(--text-strong);font:700 20px/1.2 var(--sans);background:0 0;border:1px solid #0000;border-radius:6px;flex:0 320px;padding:8px 10px}.map-title-group{align-items:center;gap:8px;min-width:0;display:flex;position:relative}.map-title-icon-menu{flex:none;position:relative}.map-title-icon-button{border:1px solid var(--border);background:var(--button-bg);width:38px;height:38px;color:var(--accent);cursor:pointer;border-radius:8px;justify-content:center;align-items:center;display:inline-flex}.map-title-icon-button:hover,.map-title-icon-button.active{border-color:var(--accent);background:var(--accent-soft)}.map-title-icon-button svg{fill:none;stroke:currentColor;stroke-width:2px;stroke-linecap:round;stroke-linejoin:round;width:22px;height:22px}.map-title-icon-panel{min-width:auto;left:0;right:auto}.map-title-input:focus{border-color:var(--accent);background:var(--panel);outline:none}.toolbar-actions{flex-wrap:nowrap;flex:none;justify-content:flex-end;align-items:center;gap:8px;display:flex}.toolbar-menu{position:relative}.toolbar-menu-trigger{border:1px solid var(--border);background:var(--button-bg);min-height:36px;color:var(--text-strong);font:800 13px/1.2 var(--sans);cursor:pointer;border-radius:6px;padding:7px 12px}.toolbar-menu-trigger:hover,.toolbar-menu-trigger.active{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}.toolbar-theme-trigger{align-items:center;gap:7px;display:inline-flex}.toolbar-trigger-icon{width:16px;height:16px;display:inline-flex}.toolbar-trigger-icon svg{fill:none;stroke:currentColor;stroke-width:2px;stroke-linecap:round;stroke-linejoin:round;width:16px;height:16px}.toolbar-icon-trigger{justify-content:center;align-items:center;width:36px;padding:0;display:inline-flex}.toolbar-icon-trigger svg{fill:none;stroke:currentColor;stroke-width:2px;stroke-linecap:round;stroke-linejoin:round;width:18px;height:18px}.toolbar-menu-panel{z-index:40;border:1px solid var(--border);min-width:220px;box-shadow:var(--shadow);background:#fffffff5;border-radius:8px;gap:4px;padding:6px;display:grid;position:absolute;top:calc(100% + 8px);right:0}.map-icon-menu-section{border-bottom:1px solid var(--border);gap:6px;padding:6px 6px 8px;display:none}.toolbar-menu-section-label{color:var(--text);font:800 11px/1.2 var(--sans);text-transform:uppercase}.map-icon-picker{grid-template-columns:repeat(8,1fr);gap:5px;width:280px;max-height:150px;display:grid;overflow-y:auto}.tools-menu-panel{min-width:280px}.toolbar-menu-item,.toolbar-menu-text-item{width:100%;min-height:34px;color:var(--text-strong);font:700 13px/1.2 var(--sans);text-align:left;cursor:pointer;background:0 0;border:1px solid #0000;border-radius:6px;grid-template-columns:22px minmax(0,1fr) auto;align-items:center;gap:8px;padding:6px 8px;display:grid}.toolbar-menu-text-item{grid-template-columns:minmax(0,1fr)}.toolbar-menu-item:hover,.toolbar-menu-text-item:hover{border-color:var(--accent);background:var(--accent-soft)}.toolbar-menu-icon{color:currentColor;width:22px;height:22px;display:inline-flex}.toolbar-menu-icon svg{fill:none;stroke:currentColor;stroke-width:1.9px;stroke-linecap:round;stroke-linejoin:round;width:22px;height:22px}.toolbar-menu-label{text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}.toolbar-actions>.toolbar-menu-item,.import-file-input{display:none}.style-menu-panel{min-width:160px}.toolbar-menu-text-item.active{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}.toolbar-button{grid-template-columns:22px auto;align-items:center;gap:8px;min-width:74px;padding:6px 8px;display:inline-grid}.toolbar-button:hover,.icon-button:hover,.secondary-button:hover{border-color:var(--accent)}.toolbar-icon{color:currentColor;width:22px;height:22px;display:inline-flex}.toolbar-icon svg{fill:none;stroke:currentColor;stroke-width:1.9px;stroke-linecap:round;stroke-linejoin:round;width:22px;height:22px}.shortcut-badge{border:1px solid var(--badge-border);background:var(--badge-bg);min-width:32px;color:var(--text);font:600 11px/1.35 var(--sans);text-align:center;white-space:nowrap;border-radius:5px;padding:2px 5px}.danger-button{color:var(--danger)!important}.mindmap-board{cursor:grab;-webkit-user-select:none;user-select:none;background:var(--canvas);min-width:0;min-height:0;padding:0;position:relative;overflow:hidden}.map-style-serious .mindmap-board{background-color:#fbfdff;background-image:linear-gradient(#ffffffad,#ffffffad),url(/assets/industrial-serious-bg-CjATLXBh.png);background-position:50%,50%;background-size:cover,cover}.map-style-playful .mindmap-board{background-color:#fbfdff;background-image:linear-gradient(#ffffff5c,#ffffff5c),url(/assets/playful-bg-CC0iMp-Y.png);background-position:50%,50%;background-size:cover,cover}.map-style-casual .mindmap-board{background-color:var(--canvas);background-image:linear-gradient(115deg,#2563eb14 1px,#0000 1px),linear-gradient(65deg,#0f766e12 1px,#0000 1px),linear-gradient(0deg,#5260700e 1px,#0000 1px);background-position:0 0,16px 8px,0 0;background-size:72px 72px,104px 104px,36px 36px}.mindmap-board.panning{cursor:grabbing}.mindmap-board:focus{outline:2px solid var(--accent);outline-offset:-2px}.fullscreen-exit-button{z-index:35;border:1px solid var(--border);min-height:36px;color:var(--text-strong);font:800 13px/1.2 var(--sans);box-shadow:var(--shadow);cursor:pointer;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#fffffff0;border-radius:7px;padding:7px 12px;position:fixed;top:18px;right:18px}.fullscreen-exit-button:hover{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}.mindmap-canvas{margin:0 auto;position:relative}.mindmap-zoom-layer{transform-origin:0 0;position:relative}.zoom-control{z-index:20;border:1px solid var(--border);box-shadow:var(--shadow);background:#ffffffeb;border-radius:8px;align-items:center;gap:4px;padding:5px;display:inline-flex;position:fixed;bottom:18px;right:18px}.zoom-control button{min-width:32px;min-height:30px;color:var(--text-strong);font:800 13px/1 var(--sans);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:6px}.zoom-control button:hover{border-color:var(--accent);background:var(--accent-soft)}.zoom-control .zoom-value{min-width:58px;color:var(--accent)}.style-preset-strip{z-index:30;max-width:calc(100vw - 356px);box-shadow:0 0 0 1px #ffffffb8 inset, var(--shadow);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#fffffff5;border:1px solid #94a3b8b8;border-radius:8px;align-items:center;gap:6px;padding:6px;display:flex;position:fixed;bottom:18px;left:278px;overflow-x:auto}.fullscreen-view .style-preset-strip{max-width:calc(100vw - 36px);left:18px}.style-preset-button{border:1px solid color-mix(in srgb, var(--preset-color) 56%, #fff);background:linear-gradient(180deg, #ffffffd1, #ffffff94), var(--preset-background,color-mix(in srgb, var(--preset-color) 18%, #fff));width:34px;height:34px;color:var(--preset-color);cursor:pointer;border-radius:7px;justify-content:center;align-items:center;display:inline-flex;position:relative}.style-preset-button:hover,.style-preset-button.active{border-color:var(--preset-color);box-shadow:0 0 0 3px color-mix(in srgb, var(--preset-color) 18%, transparent)}.style-preset-number{font:800 9px/1 var(--sans);color:color-mix(in srgb, var(--preset-color) 72%, #111827);position:absolute;top:3px;left:4px}.style-preset-letter{font-size:var(--preset-font-size);font-weight:var(--preset-font-weight);-webkit-text-decoration:var(--preset-text-decoration,none);text-decoration:var(--preset-text-decoration,none);line-height:1}.canvas-quick-controls{border-left:1px solid #94a3b88a;align-items:center;gap:5px;padding-left:8px;display:flex}.color-quick-controls{grid-template-rows:repeat(2,16px);grid-auto-columns:16px;grid-auto-flow:column;display:grid}.canvas-color-button{background:var(--quick-color);cursor:pointer;border:1px solid #0f172a29;border-radius:4px;width:16px;height:16px;padding:0}.canvas-color-button.active{box-shadow:0 0 0 2px #fff, 0 0 0 4px var(--quick-color);border-color:#111827}.canvas-text-button,.canvas-size-button{border:1px solid var(--border);background:var(--button-bg);min-width:32px;height:32px;color:var(--text-strong);cursor:pointer;border-radius:6px;justify-content:center;align-items:center;padding:0 7px;display:inline-flex}.canvas-text-button{font:900 15px/1 var(--sans)}.canvas-text-button.strikethrough{text-decoration:line-through}.canvas-text-button.underline{text-decoration:underline}.canvas-text-button.outlined{box-shadow:inset 0 0 0 2px}.canvas-size-button{font:800 var(--font-size-option-size,13px)/1 var(--sans)}.canvas-text-button:hover,.canvas-size-button:hover,.canvas-text-button.active,.canvas-size-button.active{border-color:var(--node-accent,var(--accent));background:var(--node-soft-bg,var(--accent-soft));color:var(--node-accent,var(--accent))}.drop-zone{z-index:0;pointer-events:none;border:2px dashed #0000;transition:background .12s,border-color .12s;position:absolute;top:0;bottom:0}.drop-zone.left{left:0;right:50%}.drop-zone.right{left:50%;right:0}.drop-zone.active{border-color:var(--accent);background:var(--drop-zone)}.connectors{pointer-events:none;position:absolute;inset:0;overflow:visible}.connectors path{fill:none;stroke:var(--connector);stroke-width:2.5px}.connectors path.child-connector-active{stroke:#64748b;stroke-width:3.5px}.mind-node{z-index:1;border:1px solid var(--node-border-strength,color-mix(in srgb, var(--node-accent,var(--node-border)) 46%, #fff));box-sizing:border-box;background:linear-gradient(180deg, #ffffffeb, #ffffffb8), var(--node-soft-bg,var(--node-bg));min-width:96px;max-width:320px;min-height:44px;color:var(--node-accent,var(--text-strong));font-family:var(--mindmap-font,var(--sans));cursor:pointer;-webkit-user-select:none;user-select:none;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-radius:8px;grid-template-columns:22px minmax(0,1fr);align-items:center;gap:8px;padding:2px 6px 2px 12px;transition:border-color .14s,box-shadow .14s,transform .14s,background .14s;display:grid;position:absolute;box-shadow:inset 0 1px #ffffffd1,0 10px 24px #1f2a371f}.map-style-playful .mind-node{border-radius:999px;padding-inline:9px}.map-style-playful .root-node{border-radius:999px}.map-style-serious .mind-node{border-top-right-radius:0;border-bottom-left-radius:0}.mind-node.editing{z-index:5;min-width:220px;min-height:74px}.mind-node.icon-picker-open{z-index:60}.mind-node[draggable=true]{cursor:grab}.mind-node[draggable=true]:active{cursor:grabbing}.mind-node:hover{border-color:var(--node-accent,var(--accent));background:linear-gradient(180deg, #fffffffa, #fffc), var(--node-soft-bg,var(--node-bg));box-shadow:inset 0 1px #ffffffe6,0 14px 28px #1f2a3729}.mind-node.selected{border-color:var(--node-accent,var(--accent));box-shadow:0 0 0 3px var(--accent-ring), 0 1px 0 #ffffffe6 inset, 0 16px 34px #1f2a372e}.mind-node.drop-target{border-color:var(--accent);background:linear-gradient(180deg, #2563eb21, #2563eb12), var(--node-soft-bg,var(--node-bg));box-shadow:0 0 0 4px var(--accent-ring), var(--shadow)}.mind-node.drop-target:after{content:"";background:var(--accent);border-radius:999px;position:absolute}.mind-node.drop-target-child:after{width:38px;height:2px;top:50%;transform:translateY(-50%)}.mind-node.drop-target-child.side-right:after,.root-node.drop-target-child.drop-target-right:after{right:-42px}.mind-node.drop-target-child.side-left:after,.root-node.drop-target-child.drop-target-left:after{left:-42px}.mind-node.drop-target-before:after,.mind-node.drop-target-after:after{height:3px;box-shadow:0 0 0 3px var(--accent-ring);left:8px;right:8px}.mind-node.drop-target-before:after{top:-8px}.mind-node.drop-target-after:after{bottom:-8px}.root-node.drop-target.drop-target-left{background:linear-gradient(90deg, #2563eb2e, #2563eb0a 52%), var(--node-soft-bg,var(--root-bg))}.root-node.drop-target.drop-target-right{background:linear-gradient(270deg, #2563eb2e, #2563eb0a 52%), var(--node-soft-bg,var(--root-bg))}.root-node{border-width:2px;border-color:var(--node-accent,var(--root-border));background:radial-gradient(circle at 18% 18%, #ffffffeb, transparent 34%), linear-gradient(135deg, #ffffffdb, #ffffff85), var(--node-soft-bg,var(--root-bg));text-align:center;min-width:132px;max-width:380px;min-height:64px;box-shadow:0 0 0 4px #ffffffc7,inset 0 1px #ffffffe6,0 20px 42px #1f2a3733}.root-node .node-title,.root-node .node-input{font-size:var(--node-font-size,18px);font-weight:var(--node-font-weight,800)}.root-node .node-display-icon,.root-node .node-display-icon svg{width:26px;height:26px}.root-node .node-display-icon{border-radius:9px}.root-node .node-display-icon svg{width:17px;height:17px}.side-left{grid-template-columns:22px minmax(0,1fr);padding:2px 12px 2px 6px}.collapse-button{z-index:-1;border:1px solid var(--node-accent,var(--border));width:22px;height:22px;color:var(--node-accent,var(--text-strong));cursor:pointer;background:#fff;border-radius:50%;line-height:18px;position:absolute;top:50%;right:-14px;transform:translateY(-50%)}.side-left .collapse-button{left:-14px;right:auto}.collapse-button:disabled{background:0 0;border-color:#0000}.node-display-icon{background:color-mix(in srgb, var(--node-accent,var(--accent)) 13%, #fff);width:22px;height:22px;color:var(--node-accent,currentColor);cursor:pointer;border:1px solid #0000;border-radius:7px;grid-area:1/1;justify-content:center;align-items:center;padding:0;display:inline-flex}.node-display-icon:hover,.node-display-icon:focus-visible{border-color:var(--node-accent,var(--accent));background:color-mix(in srgb, var(--node-accent,var(--accent)) 20%, #fff);outline:none}.node-display-icon svg{fill:none;stroke:currentColor;stroke-width:2.2px;stroke-linecap:round;stroke-linejoin:round;width:15px;height:15px}.node-icon-dropdown{z-index:70;border:1px solid var(--border);cursor:default;background:#fffffffa;border-radius:8px;grid-template-columns:repeat(12,32px);gap:6px;width:max-content;max-width:calc(100vw - 36px);padding:8px;display:grid;position:absolute;top:calc(100% + 8px);left:0;box-shadow:0 18px 42px #1f2a3738}.side-left .node-icon-dropdown{left:auto;right:0}.root-node .node-icon-dropdown{left:50%;transform:translate(-50%)}.node-icon-dropdown .picker-icon-button{width:32px;height:32px}@media (width<=560px){.node-icon-dropdown{grid-template-columns:repeat(6,32px);max-height:70vh;overflow:hidden auto}}.node-title{overflow-wrap:anywhere;white-space:pre-wrap;text-align:left;font-size:var(--node-font-size,15px);font-weight:var(--node-font-weight,500);-webkit-text-decoration:var(--node-text-decoration,none);text-decoration:var(--node-text-decoration,none);grid-area:1/2;line-height:1.28}.node-title a{color:inherit;text-underline-offset:2px;cursor:pointer;text-decoration:underline}.node-input{resize:vertical;border:1px solid var(--accent);box-sizing:border-box;background:var(--surface);width:100%;min-width:0;min-height:58px;color:var(--text-strong);font:inherit;font-family:var(--mindmap-font,var(--sans));font-size:var(--node-font-size,15px);font-weight:var(--node-font-weight,500);-webkit-text-decoration:var(--node-text-decoration,none);text-decoration:var(--node-text-decoration,none);border-radius:5px;grid-area:1/2;padding:5px 7px;line-height:1.28}.node-input:focus{outline:none}.node-style-panel{z-index:30;border:1px solid var(--border);background:var(--panel);width:520px;max-width:calc(100vw - 36px);box-shadow:var(--shadow);border-radius:8px;padding:12px;position:fixed;top:88px;bottom:74px;right:18px;overflow-y:auto}.node-style-panel-heading{color:var(--text-strong);justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px;font-weight:800;display:flex}.panel-close-button{border:1px solid var(--border);background:var(--button-bg);width:30px;height:30px;color:var(--text-strong);cursor:pointer;border-radius:6px}.panel-section{gap:7px;margin-bottom:12px;display:grid}.panel-label{color:var(--text);font:800 12px/1.2 var(--sans);text-transform:uppercase}.icon-picker{grid-template-columns:repeat(6,1fr);gap:6px;max-height:224px;margin-bottom:8px;display:grid;overflow:hidden auto}.picker-icon-button{border:1px solid var(--border);background:var(--button-bg);height:32px;color:var(--node-accent,var(--text-strong));cursor:pointer;border-radius:6px;justify-content:center;align-items:center;display:inline-flex}.picker-icon-button.active{border-color:var(--node-accent,var(--accent));background:var(--node-soft-bg,var(--accent-soft))}.picker-icon-button svg{fill:none;stroke:currentColor;stroke-width:1.9px;stroke-linecap:round;stroke-linejoin:round;width:20px;height:20px}.color-picker{grid-template-columns:repeat(4,1fr);gap:6px;display:grid}.appearance-grid{grid-template-columns:176px minmax(0,1fr);align-items:start;gap:14px;display:grid}.appearance-controls{gap:2px;display:grid}.compact-color-picker{grid-template-rows:repeat(2,24px);grid-template-columns:none;grid-auto-columns:24px;grid-auto-flow:column;justify-content:start;overflow:hidden visible}.color-swatch{cursor:pointer;border:2px solid #0000;border-radius:6px;width:24px;height:24px}.color-swatch.active{border-color:var(--text-strong);box-shadow:0 0 0 2px var(--panel), 0 0 0 4px var(--node-accent,var(--accent))}.text-style-row{grid-template-columns:repeat(4,38px);gap:8px;margin-top:8px;display:grid}.text-style-toggle,.font-size-option{border:1px solid var(--border);background:var(--button-bg);min-height:30px;color:var(--text-strong);cursor:pointer;border-radius:6px}.text-style-toggle{font:900 16px/1 var(--sans)}.text-style-toggle:nth-child(2){text-decoration:line-through}.text-style-toggle:nth-child(3){text-decoration:underline}.text-style-toggle:nth-child(4){box-shadow:inset 0 0 0 2px}.font-size-picker{grid-template-columns:repeat(4,1fr);gap:6px;display:grid}.font-size-option{font:800 var(--font-size-option-size,12px)/1 var(--sans)}.text-style-toggle.active,.font-size-option.active{border-color:var(--node-accent,var(--accent));background:var(--node-soft-bg,var(--accent-soft));color:var(--node-accent,var(--accent))}.node-edit-actions{justify-content:flex-end;margin-top:8px;display:flex}.save-node-button{border:1px solid var(--node-accent,var(--accent));background:var(--node-accent,var(--accent));color:#fff;min-height:30px;font:700 13px/1.2 var(--sans);cursor:pointer;border-radius:6px;padding:5px 10px}@media (width<=820px){.app-shell{grid-template-rows:auto minmax(0,1fr);grid-template-columns:1fr}.map-sidebar{border-right:0;border-bottom:1px solid var(--border);max-height:168px}.map-list{grid-auto-columns:minmax(150px,1fr);grid-auto-flow:column;overflow-x:auto}.secondary-button{margin-top:0}.toolbar{flex-direction:column;align-items:stretch}.map-title-group{width:100%}.map-title-input{flex:auto}.toolbar-actions{flex-wrap:wrap;justify-content:flex-start}.style-preset-strip{grid-template-columns:repeat(5,34px);left:18px}.node-style-panel{width:calc(100vw - 36px)}.appearance-grid{grid-template-columns:1fr}}