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l=o.state,c=o.type,f=wr(l.impact,l.dimensions.droppables),m=!!f,g=l.dimensions.droppables[l.critical.droppable.id],y=f||g,w=y.axis.direction,B=w==="vertical"&&(c==="MOVE_UP"||c==="MOVE_DOWN")||w==="horizontal"&&(c==="MOVE_LEFT"||c==="MOVE_RIGHT");if(B&&!m)return null;var N=c==="MOVE_DOWN"||c==="MOVE_RIGHT",E=l.dimensions.draggables[l.critical.draggable.id],I=l.current.page.borderBoxCenter,$=l.dimensions,W=$.draggables,oe=$.droppables;return B?An({isMovingForward:N,previousPageBorderBoxCenter:I,draggable:E,destination:y,draggables:W,viewport:l.viewport,previousClientSelection:l.current.client.selection,previousImpact:l.impact,afterCritical:l.afterCritical}):vn({isMovingForward:N,previousPageBorderBoxCenter:I,draggable:E,isOver:y,draggables:W,droppables:oe,viewport:l.viewport,afterCritical:l.afterCritical})};function Dn(o){return o.phase==="DRAGGING"||o.phase==="COLLECTING"}function Hn(o){var l=ee(o.top,o.bottom),c=ee(o.left,o.right);return function(m){return l(m.y)&&c(m.x)}}function ai(o,l){return o.left<l.right&&o.right>l.left&&o.top<l.bottom&&o.bottom>l.top}function na(o){var l=o.pageBorderBox,c=o.draggable,f=o.candidates,m=c.page.borderBox.center,g=f.map(function(y){var w=y.axis,B=Li(y.axis.line,l.center[w.line],y.page.borderBox.center[w.crossAxisLine]);return{id:y.descriptor.id,distance:ua(m,B)}}).sort(function(y,w){return w.distance-y.distance});return g[0]?g[0].id:null}function Ln(o){var l=o.pageBorderBox,c=o.draggable,f=o.droppables,m=ii(f).filter(function(g){if(!g.isEnabled)return!1;var y=g.subject.active;if(!y||!ai(l,y))return!1;if(Hn(y)(l.center))return!0;var w=g.axis,B=y.center[w.crossAxisLine],N=l[w.crossAxisStart],E=l[w.crossAxisEnd],I=ee(y[w.crossAxisStart],y[w.crossAxisEnd]),$=I(N),W=I(E);return!$&&!W?!0:$?N<B:E>B});return m.length?m.length===1?m[0].descriptor.id:na({pageBorderBox:l,draggable:c,candidates:m}):null}var ia=function(l,c){return dr(Aa(l,c))},In=function(o,l){var c=o.frame;return c?ia(l,c.scroll.diff.value):l};function aa(o){var l=o.displaced,c=o.id;return!!(l.visible[c]||l.invisible[c])}function $i(o){var l=o.draggable,c=o.closest,f=o.inHomeList;return c?f&&c.descriptor.index>l.descriptor.index?c.descriptor.index-1:c.descriptor.index:null}var hi=function(o){var l=o.pageBorderBoxWithDroppableScroll,c=o.draggable,f=o.destination,m=o.insideDestination,g=o.last,y=o.viewport,w=o.afterCritical,B=f.axis,N=On(f.axis,c.displaceBy),E=N.value,I=l[B.start],$=l[B.end],W=M(c,m),oe=qn(W,function(Ge){var Qe=Ge.descriptor.id,xt=Ge.page.borderBox.center[B.line],Lt=Bt(Qe,w),Rt=aa({displaced:g,id:Qe});return Lt?Rt?$<=xt:I<xt-E:Rt?$<=xt+E:I<xt}),We=$i({draggable:c,closest:oe,inHomeList:k(c,f)});return Ot({draggable:c,insideDestination:m,destination:f,viewport:y,last:g,displacedBy:N,index:We})},oi=4,fa=function(o){var l=o.draggable,c=o.pageBorderBoxWithDroppableScroll,f=o.previousImpact,m=o.destination,g=o.insideDestination,y=o.afterCritical;if(!m.isCombineEnabled)return null;var w=m.axis,B=On(m.axis,l.displaceBy),N=B.value,E=c[w.start],I=c[w.end],$=M(l,g),W=qn($,function(We){var Ge=We.descriptor.id,Qe=We.page.borderBox,xt=Qe[w.size],Lt=xt/oi,Rt=Bt(Ge,y),Yt=aa({displaced:f.displaced,id:Ge});return Rt?Yt?I>Qe[w.start]+Lt&&I<Qe[w.end]-Lt:E>Qe[w.start]-N+Lt&&E<Qe[w.end]-N-Lt:Yt?I>Qe[w.start]+N+Lt&&I<Qe[w.end]+N-Lt:E>Qe[w.start]+Lt&&E<Qe[w.end]-Lt});if(!W)return null;var oe={displacedBy:B,displaced:f.displaced,at:{type:"COMBINE",combine:{draggableId:W.descriptor.id,droppableId:m.descriptor.id}}};return oe},qa=function(o){var l=o.pageOffset,c=o.draggable,f=o.draggables,m=o.droppables,g=o.previousImpact,y=o.viewport,w=o.afterCritical,B=ia(c.page.borderBox,l),N=Ln({pageBorderBox:B,draggable:c,droppables:m});if(!N)return H;var E=m[N],I=ta(E.descriptor.id,f),$=In(E,B);return fa({pageBorderBoxWithDroppableScroll:$,draggable:c,previousImpact:g,destination:E,insideDestination:I,afterCritical:w})||hi({pageBorderBoxWithDroppableScroll:$,draggable:c,destination:E,insideDestination:I,last:g.displaced,viewport:y,afterCritical:w})},ji=function(o,l){var c;return(0,ue.Z)({},o,(c={},c[l.descriptor.id]=l,c))},ya=function(l){var c=l.previousImpact,f=l.impact,m=l.droppables,g=Mn(c),y=Mn(f);if(!g||g===y)return m;var w=m[g];if(!w.subject.withPlaceholder)return m;var B=ra(w);return ji(m,B)},xa=function(o){var l=o.draggable,c=o.draggables,f=o.droppables,m=o.previousImpact,g=o.impact,y=ya({previousImpact:m,impact:g,droppables:f}),w=Mn(g);if(!w)return y;var B=f[w];if(k(l,B)||B.subject.withPlaceholder)return y;var N=pi(B,l,c);return ji(y,N)},mi=function(o){var l=o.state,c=o.clientSelection,f=o.dimensions,m=o.viewport,g=o.impact,y=o.scrollJumpRequest,w=m||l.viewport,B=f||l.dimensions,N=c||l.current.client.selection,E=kn(N,l.initial.client.selection),I={offset:E,selection:N,borderBoxCenter:Ar(l.initial.client.borderBoxCenter,E)},$={selection:Ar(I.selection,w.scroll.current),borderBoxCenter:Ar(I.borderBoxCenter,w.scroll.current),offset:Ar(I.offset,w.scroll.diff.value)},W={client:I,page:$};if(l.phase==="COLLECTING")return(0,ue.Z)({phase:"COLLECTING"},l,{dimensions:B,viewport:w,current:W});var oe=B.draggables[l.critical.draggable.id],We=g||qa({pageOffset:$.offset,draggable:oe,draggables:B.draggables,droppables:B.droppables,previousImpact:l.impact,viewport:w,afterCritical:l.afterCritical}),Ge=xa({draggable:oe,impact:We,previousImpact:l.impact,draggables:B.draggables,droppables:B.droppables}),Qe=(0,ue.Z)({},l,{current:W,dimensions:{draggables:B.draggables,droppables:Ge},impact:We,viewport:w,scrollJumpRequest:y||null,forceShouldAnimate:y?!1:null});return Qe};function Da(o,l){return o.map(function(c){return l[c]})}var oa=function(o){var l=o.impact,c=o.viewport,f=o.draggables,m=o.destination,g=o.forceShouldAnimate,y=l.displaced,w=Da(y.all,f),B=mt({afterDragging:w,destination:m,displacedBy:l.displacedBy,viewport:c.frame,forceShouldAnimate:g,last:y});return(0,ue.Z)({},l,{displaced:B})},La=function(o){var l=o.impact,c=o.draggable,f=o.droppable,m=o.draggables,g=o.viewport,y=o.afterCritical,w=Wr({impact:l,draggable:c,draggables:m,droppable:f,afterCritical:y});return wi({pageBorderBoxCenter:w,draggable:c,viewport:g})},lr=function(o){var l=o.state,c=o.dimensions,f=o.viewport;l.movementMode!=="SNAP"&&Pe(!1);var m=l.impact,g=f||l.viewport,y=c||l.dimensions,w=y.draggables,B=y.droppables,N=w[l.critical.draggable.id],E=Mn(m);E||Pe(!1);var I=B[E],$=oa({impact:m,viewport:g,destination:I,draggables:w}),W=La({impact:$,draggable:N,droppable:I,draggables:w,viewport:g,afterCritical:l.afterCritical});return mi({impact:$,clientSelection:W,state:l,dimensions:y,viewport:g})},ir=function(o){return{index:o.index,droppableId:o.droppableId}},on=function(o){var l=o.draggable,c=o.home,f=o.draggables,m=o.viewport,g=On(c.axis,l.displaceBy),y=ta(c.descriptor.id,f),w=y.indexOf(l);w===-1&&Pe(!1);var B=y.slice(w+1),N=B.reduce(function(W,oe){return W[oe.descriptor.id]=!0,W},{}),E={inVirtualList:c.descriptor.mode==="virtual",displacedBy:g,effected:N},I=mt({afterDragging:B,destination:c,displacedBy:g,last:null,viewport:m.frame,forceShouldAnimate:!1}),$={displaced:I,displacedBy:g,at:{type:"REORDER",destination:ir(l.descriptor)}};return{impact:$,afterCritical:E}},Pi=function(o,l){return{draggables:o.draggables,droppables:ji(o.droppables,l)}},Ri=function(l){},Oi=function(l){},Ia=function(o){var l=o.draggable,c=o.offset,f=o.initialWindowScroll,m=At(l.client,c),g=Fr(m,f),y=(0,ue.Z)({},l,{placeholder:(0,ue.Z)({},l.placeholder,{client:m}),client:m,page:g});return y},Xa=function(o){var l=o.frame;return l||Pe(!1),l},co=function(o){var l=o.additions,c=o.updatedDroppables,f=o.viewport,m=f.scroll.diff.value;return l.map(function(g){var y=g.descriptor.droppableId,w=c[y],B=Xa(w),N=B.scroll.diff.value,E=Ar(m,N),I=Ia({draggable:g,offset:E,initialWindowScroll:f.scroll.initial});return I})},Ba=function(o){var l=o.state,c=o.published;Ri();var f=c.modified.map(function(Lt){var Rt=l.dimensions.droppables[Lt.droppableId],Yt=Gn(Rt,Lt.scroll);return Yt}),m=(0,ue.Z)({},l.dimensions.droppables,{},Bi(f)),g=ui(co({additions:c.additions,updatedDroppables:m,viewport:l.viewport})),y=(0,ue.Z)({},l.dimensions.draggables,{},g);c.removals.forEach(function(Lt){delete y[Lt]});var w={droppables:m,draggables:y},B=Mn(l.impact),N=B?w.droppables[B]:null,E=w.draggables[l.critical.draggable.id],I=w.droppables[l.critical.droppable.id],$=on({draggable:E,home:I,draggables:y,viewport:l.viewport}),W=$.impact,oe=$.afterCritical,We=N&&N.isCombineEnabled?l.impact:W,Ge=qa({pageOffset:l.current.page.offset,draggable:w.draggables[l.critical.draggable.id],draggables:w.draggables,droppables:w.droppables,previousImpact:We,viewport:l.viewport,afterCritical:oe});Oi();var Qe=(0,ue.Z)({phase:"DRAGGING"},l,{phase:"DRAGGING",impact:Ge,onLiftImpact:W,dimensions:w,afterCritical:oe,forceShouldAnimate:!1});if(l.phase==="COLLECTING")return Qe;var xt=(0,ue.Z)({phase:"DROP_PENDING"},Qe,{phase:"DROP_PENDING",reason:l.reason,isWaiting:!1});return xt},uo=function(l){return l.movementMode==="SNAP"},Gr=function(l,c,f){var m=Pi(l.dimensions,c);return!uo(l)||f?mi({state:l,dimensions:m}):lr({state:l,dimensions:m})};function pr(o){return o.isDragging&&o.movementMode==="SNAP"?(0,ue.Z)({phase:"DRAGGING"},o,{scrollJumpRequest:null}):o}var Bn={phase:"IDLE",completed:null,shouldFlush:!1},Qn=function(o,l){if(o===void 0&&(o=Bn),l.type==="FLUSH")return(0,ue.Z)({},Bn,{shouldFlush:!0});if(l.type==="INITIAL_PUBLISH"){o.phase!=="IDLE"&&Pe(!1);var c=l.payload,f=c.critical,m=c.clientSelection,g=c.viewport,y=c.dimensions,w=c.movementMode,B=y.draggables[f.draggable.id],N=y.droppables[f.droppable.id],E={selection:m,borderBoxCenter:B.client.borderBox.center,offset:an},I={client:E,page:{selection:Ar(E.selection,g.scroll.initial),borderBoxCenter:Ar(E.selection,g.scroll.initial),offset:Ar(E.selection,g.scroll.diff.value)}},$=ii(y.droppables).every(function(Xl){return!Xl.isFixedOnPage}),W=on({draggable:B,home:N,draggables:y.draggables,viewport:g}),oe=W.impact,We=W.afterCritical,Ge={phase:"DRAGGING",isDragging:!0,critical:f,movementMode:w,dimensions:y,initial:I,current:I,isWindowScrollAllowed:$,impact:oe,afterCritical:We,onLiftImpact:oe,viewport:g,scrollJumpRequest:null,forceShouldAnimate:null};return Ge}if(l.type==="COLLECTION_STARTING"){if(o.phase==="COLLECTING"||o.phase==="DROP_PENDING")return o;o.phase!=="DRAGGING"&&Pe(!1);var Qe=(0,ue.Z)({phase:"COLLECTING"},o,{phase:"COLLECTING"});return Qe}if(l.type==="PUBLISH_WHILE_DRAGGING")return o.phase==="COLLECTING"||o.phase==="DROP_PENDING"||Pe(!1),Ba({state:o,published:l.payload});if(l.type==="MOVE"){if(o.phase==="DROP_PENDING")return o;Dn(o)||Pe(!1);var xt=l.payload.client;return Jr(xt,o.current.client.selection)?o:mi({state:o,clientSelection:xt,impact:uo(o)?o.impact:null})}if(l.type==="UPDATE_DROPPABLE_SCROLL"){if(o.phase==="DROP_PENDING"||o.phase==="COLLECTING")return pr(o);Dn(o)||Pe(!1);var Lt=l.payload,Rt=Lt.id,Yt=Lt.newScroll,Ft=o.dimensions.droppables[Rt];if(!Ft)return o;var mr=Gn(Ft,Yt);return Gr(o,mr,!1)}if(l.type==="UPDATE_DROPPABLE_IS_ENABLED"){if(o.phase==="DROP_PENDING")return o;Dn(o)||Pe(!1);var Tn=l.payload,gr=Tn.id,Ur=Tn.isEnabled,Ci=o.dimensions.droppables[gr];Ci||Pe(!1),Ci.isEnabled===Ur&&Pe(!1);var ri=(0,ue.Z)({},Ci,{isEnabled:Ur});return Gr(o,ri,!0)}if(l.type==="UPDATE_DROPPABLE_IS_COMBINE_ENABLED"){if(o.phase==="DROP_PENDING")return o;Dn(o)||Pe(!1);var pa=l.payload,Ra=pa.id,Ma=pa.isCombineEnabled,Ca=o.dimensions.droppables[Ra];Ca||Pe(!1),Ca.isCombineEnabled===Ma&&Pe(!1);var Fi=(0,ue.Z)({},Ca,{isCombineEnabled:Ma});return Gr(o,Fi,!0)}if(l.type==="MOVE_BY_WINDOW_SCROLL"){if(o.phase==="DROP_PENDING"||o.phase==="DROP_ANIMATING")return o;Dn(o)||Pe(!1),o.isWindowScrollAllowed||Pe(!1);var Lo=l.payload.newScroll;if(Jr(o.viewport.scroll.current,Lo))return pr(o);var no=Mr(o.viewport,Lo);return uo(o)?lr({state:o,viewport:no}):mi({state:o,viewport:no})}if(l.type==="UPDATE_VIEWPORT_MAX_SCROLL"){if(!Dn(o))return o;var mo=l.payload.maxScroll;if(Jr(mo,o.viewport.scroll.max))return o;var Wa=(0,ue.Z)({},o.viewport,{scroll:(0,ue.Z)({},o.viewport.scroll,{max:mo})});return(0,ue.Z)({phase:"DRAGGING"},o,{viewport:Wa})}if(l.type==="MOVE_UP"||l.type==="MOVE_DOWN"||l.type==="MOVE_LEFT"||l.type==="MOVE_RIGHT"){if(o.phase==="COLLECTING"||o.phase==="DROP_PENDING")return o;o.phase!=="DRAGGING"&&Pe(!1);var io=Kn({state:o,type:l.type});return io?mi({state:o,impact:io.impact,clientSelection:io.clientSelection,scrollJumpRequest:io.scrollJumpRequest}):o}if(l.type==="DROP_PENDING"){var Xi=l.payload.reason;o.phase!=="COLLECTING"&&Pe(!1);var ha=(0,ue.Z)({phase:"DROP_PENDING"},o,{phase:"DROP_PENDING",isWaiting:!0,reason:Xi});return ha}if(l.type==="DROP_ANIMATE"){var Gl=l.payload,Va=Gl.completed,rs=Gl.dropDuration,Ws=Gl.newHomeClientOffset;o.phase==="DRAGGING"||o.phase==="DROP_PENDING"||Pe(!1);var ws={phase:"DROP_ANIMATING",completed:Va,dropDuration:rs,newHomeClientOffset:Ws,dimensions:o.dimensions};return ws}if(l.type==="DROP_COMPLETE"){var ql=l.payload.completed;return{phase:"IDLE",completed:ql,shouldFlush:!1}}return o},sa=function(l){return{type:"BEFORE_INITIAL_CAPTURE",payload:l}},gi=function(l){return{type:"LIFT",payload:l}},ss=function(l){return{type:"INITIAL_PUBLISH",payload:l}},al=function(l){return{type:"PUBLISH_WHILE_DRAGGING",payload:l}},ol=function(){return{type:"COLLECTION_STARTING",payload:null}},sl=function(l){return{type:"UPDATE_DROPPABLE_SCROLL",payload:l}},ll=function(l){return{type:"UPDATE_DROPPABLE_IS_ENABLED",payload:l}},cl=function(l){return{type:"UPDATE_DROPPABLE_IS_COMBINE_ENABLED",payload:l}},ls=function(l){return{type:"MOVE",payload:l}},za=function(l){return{type:"MOVE_BY_WINDOW_SCROLL",payload:l}},cs=function(l){return{type:"UPDATE_VIEWPORT_MAX_SCROLL",payload:l}},ul=function(){return{type:"MOVE_UP",payload:null}},dl=function(){return{type:"MOVE_DOWN",payload:null}},fl=function(){return{type:"MOVE_RIGHT",payload:null}},ks=function(){return{type:"MOVE_LEFT",payload:null}},Nn=function(){return{type:"FLUSH",payload:null}},Ka=function(l){return{type:"DROP_ANIMATE",payload:l}},Ta=function(l){return{type:"DROP_COMPLETE",payload:l}},As=function(l){return{type:"DROP",payload:l}},us=function(l){return{type:"DROP_PENDING",payload:l}},Ds=function(){return{type:"DROP_ANIMATION_FINISHED",payload:null}};function vc(o){if(!(o.length<=1)){for(var l=o.map(function(w){return w.descriptor.index}),c={},f=1;f<l.length;f++){var m=l[f],g=l[f-1];m!==g+1&&(c[m]=!0)}if(Object.keys(c).length)var y=l.map(function(w){var B=!!c[w];return B?"[\u{1F525}"+w+"]":""+w}).join(", ")}}function Ls(o,l){if(0)var c}var pl=function(o){return function(l){var c=l.getState,f=l.dispatch;return function(m){return function(g){if(g.type!=="LIFT"){m(g);return}var y=g.payload,w=y.id,B=y.clientSelection,N=y.movementMode,E=c();E.phase==="DROP_ANIMATING"&&f(Ta({completed:E.completed})),c().phase!=="IDLE"&&Pe(!1),f(Nn()),f(sa({draggableId:w,movementMode:N}));var I={shouldPublishImmediately:N==="SNAP"},$={draggableId:w,scrollOptions:I},W=o.startPublishing($),oe=W.critical,We=W.dimensions,Ge=W.viewport;Ls(oe,We),f(ss({critical:oe,dimensions:We,clientSelection:B,movementMode:N,viewport:Ge}))}}}},hl=function(o){return function(){return function(l){return 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t=this.atomIdsSettings.seed.toString(36);return this.atomIdsSettings.seed+=1,t}scale(t){return t*this.effectiveFontSize}get scalingFactor(){return this.parent?this.effectiveFontSize/this.parent.effectiveFontSize:1}get isDisplayStyle(){return this.mathstyle.id===zc||this.mathstyle.id===Fs}get isCramped(){return this.mathstyle.cramped}get isTight(){return this.mathstyle.isTight}get metrics(){return this.mathstyle.metrics}get effectiveFontSize(){return Math.max(El[Math.max(1,this.size+this.mathstyle.sizeDelta)],this.minFontScale)}getRegister(t){var r;if((r=this.registers)!=null&&r[t])return this.registers[t];if(this.parent)return this.parent.getRegister(t)}getRegisterAsNumber(t){const r=this.getRegister(t);if(typeof r=="number")return r;if(typeof r=="string")return Number(r)}getRegisterAsGlue(t){var r;if((r=this.registers)!=null&&r[t]){const n=this.registers[t];return typeof n=="object"&&"glue"in n?n:typeof n=="object"&&"dimension"in n?{glue:{dimension:n.dimension}}:typeof n=="number"?{glue:{dimension:n}}:void 0}if(this.parent)return this.parent.getRegisterAsGlue(t)}getRegisterAsEm(t,r){return id(this.getRegisterAsDimension(t),r)}getRegisterAsDimension(t){var r;if((r=this.registers)!=null&&r[t]){const n=this.registers[t];return typeof n=="object"&&"glue"in n?n.glue:typeof n=="object"&&"dimension"in n?n:typeof n=="number"?{dimension:n}:void 0}if(this.parent)return this.parent.getRegisterAsDimension(t)}setRegister(t,r){if(r===void 0){delete this.registers[t];return}this.registers[t]=r}evaluate(t){if(!t||!("register"in t))return t;let r=this;if("global"in t&&t.global)for(;r.parent;)r=r.parent;let n=1;"factor"in t&&t.factor!==1&&t.factor!==void 0&&(n=t.factor);const i=r.getRegister(t.register);if(i===void 0)return;if(typeof i=="string")return{string:Number(i).toString()+i};if(typeof i=="number")return{number:n*i};const a=r.evaluate(i);if(a!==void 0)return"string"in a?{string:Number(i).toString()+a.string}:"number"in a?{number:n*a.number}:"dimension"in a?v(_({},a),{dimension:n*a.dimension}):"glue"in a?v(_({},a),{glue:v(_({},a.glue),{dimension:n*a.glue.dimension}),shrink:a.shrink?v(_({},a.shrink),{dimension:n*a.shrink.dimension}):void 0,grow:a.grow?v(_({},a.grow),{dimension:n*a.grow.dimension}):void 0}):t}toDimension(t){const r=this.evaluate(t);return r===void 0?null:"dimension"in r?r:"glue"in r?r.glue:"number"in r?{dimension:r.number}:null}toEm(t,r){if(t===null)return 0;const n=this.toDimension(t);return n===null?0:nd(n,r)/gs}toNumber(t){if(t===null)return null;const r=this.evaluate(t);return r===void 0?null:"number"in r?r.number:"dimension"in r?r.dimension:"glue"in r?r.glue.dimension:"string"in r?Number(r.string):null}toColor(t){var r,n;if(t===null)return null;const i=this.evaluate(t);return i===void 0?null:"string"in i?(n=(r=this.colorMap)==null?void 0:r.call(this,i.string))!=null?n:i.string:null}toBackgroundColor(t){var r,n;if(t===null)return null;const i=this.evaluate(t);return i===void 0?null:"string"in i?(n=(r=this.backgroundColorMap)==null?void 0:r.call(this,i.string))!=null?n:i.string:null}},bs=["body","above","below","superscript","subscript"];function So(e){return typeof e=="string"&&bs.includes(e)}function Ol(e){return e!==void 0&&Array.isArray(e)&&e.length===2}var we=class as{constructor(t){var r,n,i,a,s,u;this.type=t.type,typeof t.value=="string"&&(this.value=t.value),this.command=(n=(r=t.command)!=null?r:this.value)!=null?n:"",this.mode=(i=t.mode)!=null?i:"math",t.isFunction&&(this.isFunction=!0),t.limits&&(this.subsupPlacement=t.limits),this.style=_({},t.style),this.displayContainsHighlight=(a=t.displayContainsHighlight)!=null?a:!1,this.captureSelection=(s=t.captureSelection)!=null?s:!1,this.skipBoundary=(u=t.skipBoundary)!=null?u:!1,t.verbatimLatex!==void 0&&t.verbatimLatex!==null&&(this.verbatimLatex=t.verbatimLatex),t.args&&(this.args=t.args),t.body&&(this.body=t.body),this._changeCounter=0}static createBox(t,r,n){var i;if(!r)return null;const a=_0(r),s=[];for(const d of a){const p=d[0].style,h=M0(t,d,{style:{color:p.color,backgroundColor:p.backgroundColor,fontSize:p.fontSize}});h&&s.push(h)}if(s.length===0)return null;const u=((i=n==null?void 0:n.classes)!=null?i:"").trim();return s.length===1&&!u&&!(n!=null&&n.type)?s[0].wrap(t):new je(s,{classes:u,type:n==null?void 0:n.type}).wrap(t)}static serialize(t,r){return Sa.serialize(t,r)}static commonAncestor(t,r){if(t===r||t.parent===r.parent)return t.parent;const n=new WeakSet;let{parent:i}=t;for(;i;)n.add(i),i=i.parent;for(i=r.parent;i;){if(n.has(i))return i;i=i.parent}console.assert(!!i)}static fromJson(t){return typeof t=="string"?new as({type:"mord",value:t,mode:"math"}):new as(t)}get latexMode(){return this.mode==="math"?"math":"text"}toJson(){const t={};if(this.type&&(t.type=this.type),this.mode!=="math"&&(t.mode=this.mode),this.command&&this.command!==this.value&&(t.command=this.command),this.value!==void 0&&(t.value=this.value),this.style&&Object.keys(this.style).length>0&&(t.style=_({},this.style)),this.verbatimLatex!==void 0&&(t.verbatimLatex=this.verbatimLatex),this.subsupPlacement&&(t.subsupPlacement=this.subsupPlacement),this.explicitSubsupPlacement&&(t.explicitSubsupPlacement=!0),this.isFunction&&(t.isFunction=!0),this.displayContainsHighlight&&(t.displayContainsHighlight=!0),this.isExtensibleSymbol&&(t.isExtensibleSymbol=!0),this.skipBoundary&&(t.skipBoundary=!0),this.captureSelection&&(t.captureSelection=!0),this.args&&(t.args=C0(this.args)),this._branches)for(const r of Object.keys(this._branches))this._branches[r]&&(t[r]=this._branches[r].filter(n=>n.type!=="first").map(n=>n.toJson()));return t.type==="mord"&&Object.keys(t).length===2&&"value"in t?t.value:t}get changeCounter(){return this.parent?this.parent.changeCounter:this._changeCounter}set isDirty(t){if(t){this.parent||this._changeCounter++,"verbatimLatex"in this&&(this.verbatimLatex=void 0),this._children=void 0;let{parent:r}=this;for(;r;)r.parent||r._changeCounter++,"verbatimLatex"in r&&(r.verbatimLatex=void 0),r._children=void 0,r=r.parent}}_serialize(t){if(!(t.expandMacro||t.skipStyles||t.skipPlaceholders)&&typeof this.verbatimLatex=="string")return this.verbatimLatex;const r=or(this.command,this.mode);return r!=null&&r.serialize?r.serialize(this,t):this.body&&this.command?Cr([yn(this.command,this.bodyToLatex(t)),this.supsubToLatex(t)]):this.body?Cr([this.bodyToLatex(t),this.supsubToLatex(t)]):!this.value||this.value==="\u200B"?"":this.command}bodyToLatex(t){var r;return Sa.serialize(this.body,v(_({},t),{defaultMode:(r=t.defaultMode)!=null?r:this.latexMode}))}aboveToLatex(t){return Sa.serialize(this.above,t)}belowToLatex(t){return Sa.serialize(this.below,t)}supsubToLatex(t){let r="";if(t=v(_({},t),{defaultMode:"math"}),this.branch("subscript")!==void 0){const n=Sa.serialize(this.subscript,t);n.length===0?r+="_{}":n.length===1?/^[0-9]$/.test(n)?r+=`_${n}`:r+=`_{${n}}`:r+=`_{${n}}`}if(this.branch("superscript")!==void 0){const n=Sa.serialize(this.superscript,t);n.length===0?r+="^{}":n.length===1?n==="\u2032"?r+="^\\prime ":n==="\u2033"?r+="^\\doubleprime ":/^[0-9]$/.test(n)?r+=`^${n}`:r+=`^{${n}}`:r+=`^{${n}}`}return r}get treeDepth(){let t=1,r=this.parent;for(;r;)r=r.parent,t+=1;return t}get inCaptureSelection(){let t=this;for(;t;){if(t.captureSelection)return!0;t=t.parent}return!1}get parentPrompt(){let t=this.parent;for(;t;){if(t.type==="prompt"&&!t.captureSelection)return t;t=t.parent}return null}branch(t){if(So(t)&&this._branches)return this._branches[t]}get branches(){if(!this._branches)return[];const t=[];for(const r of bs)this._branches[r]&&t.push(r);return t}createBranch(t){return console.assert(So(t)),So(t)?(this._branches?this._branches[t]||(this._branches[t]=[this.makeFirstAtom(t)]):this._branches={[t]:[this.makeFirstAtom(t)]},this.isDirty=!0,this._branches[t]):[]}get row(){return Ol(this.parentBranch)?this.parentBranch[0]:-1}get col(){return Ol(this.parentBranch)?this.parentBranch[1]:-1}get body(){var t;return(t=this._branches)==null?void 0:t.body}set body(t){this.setChildren(t,"body")}get superscript(){var t;return(t=this._branches)==null?void 0:t.superscript}set superscript(t){this.setChildren(t,"superscript")}get subscript(){var t;return(t=this._branches)==null?void 0:t.subscript}set subscript(t){this.setChildren(t,"subscript")}get above(){var t;return(t=this._branches)==null?void 0:t.above}set above(t){this.setChildren(t,"above")}get below(){var t;return(t=this._branches)==null?void 0:t.below}set below(t){this.setChildren(t,"below")}get computedStyle(){var t,r;const n=typeof this.style.verbatimColor=="string",i=typeof this.style.verbatimBackgroundColor=="string",a=_(_({},(r=(t=this.parent)==null?void 0:t.computedStyle)!=null?r:{}),this.style);return delete a.variant,delete a.variantStyle,i||delete a.verbatimBackgroundColor,n||delete a.verbatimColor,a}applyStyle(t){this.isDirty=!0,this.style=_(_({},this.style),t),this.style.fontFamily==="none"&&delete this.style.fontFamily,this.style.fontShape==="auto"&&delete this.style.fontShape,this.style.fontSeries==="auto"&&delete this.style.fontSeries,this.style.color==="none"&&(delete this.style.color,delete this.style.verbatimColor),this.style.backgroundColor==="none"&&(delete this.style.backgroundColor,delete this.style.verbatimBackgroundColor),this.style.fontSize==="auto"&&delete this.style.fontSize;for(const r of this.children)r.applyStyle(t)}getInitialBaseElement(){var t,r,n;return this.hasEmptyBranch("body")?this:(console.assert(((t=this.body)==null?void 0:t[0].type)==="first"),(n=(r=this.body[1])==null?void 0:r.getInitialBaseElement())!=null?n:this)}getFinalBaseElement(){return this.hasEmptyBranch("body")?this:this.body[this.body.length-1].getFinalBaseElement()}isCharacterBox(){return this.type==="leftright"||this.type==="genfrac"||this.type==="subsup"||this.type==="delim"||this.type==="array"||this.type==="surd"?!1:this.getFinalBaseElement().type==="mord"}hasEmptyBranch(t){const r=this.branch(t);return r?(console.assert(r.length>0),console.assert(r[0].type==="first"),r.length===1):!0}setChildren(t,r){var n;if(!t||(console.assert(So(r)),!So(r)))return;console.assert(((n=t[0])==null?void 0:n.type)!=="first");const i=[this.makeFirstAtom(r),...t];this._branches?this._branches[r]=i:this._branches={[r]:i};for(const a of t)a.parent=this,a.parentBranch=r;this.isDirty=!0}makeFirstAtom(t){const r=new as({type:"first",mode:this.mode});return r.parent=this,r.parentBranch=t,r}addChild(t,r){console.assert(t.type!=="first"),this.createBranch(r).push(t),this.isDirty=!0,t.parent=this,t.parentBranch=r}addChildBefore(t,r){console.assert(r.parentBranch!==void 0);const n=this.createBranch(r.parentBranch);n.splice(n.indexOf(r),0,t),this.isDirty=!0,t.parent=this,t.parentBranch=r.parentBranch}addChildAfter(t,r){console.assert(r.parentBranch!==void 0);const n=this.createBranch(r.parentBranch);n.splice(n.indexOf(r)+1,0,t),this.isDirty=!0,t.parent=this,t.parentBranch=r.parentBranch}addChildren(t,r){const n=this.createBranch(r);for(const i of t)i.parent=this,i.parentBranch=r,n.push(i);this.isDirty=!0}addChildrenAfter(t,r){console.assert(t.length===0||t[0].type!=="first"),console.assert(r.parentBranch!==void 0);const n=this.createBranch(r.parentBranch);n.splice(n.indexOf(r)+1,0,...t),this.isDirty=!0;for(const i of t)i.parent=this,i.parentBranch=r.parentBranch;return t[t.length-1]}removeBranch(t){const r=this.branch(t);if(So(t)&&(this._branches[t]=void 0),!r)return[];for(const n of r)n.parent=void 0,n.parentBranch=void 0;return console.assert(r[0].type==="first"),r.shift(),this.isDirty=!0,r}removeChild(t){if(console.assert(t.parent===this),t.type==="first")return;const r=this.branch(t.parentBranch),n=r.indexOf(t);console.assert(n>=0),r.splice(n,1),this.isDirty=!0,t.parent=void 0,t.parentBranch=void 0}get siblings(){return this.parent?this.parent.branch(this.parentBranch):[]}get firstSibling(){return this.siblings[0]}get lastSibling(){const{siblings:t}=this;return t[t.length-1]}get isFirstSibling(){return this===this.firstSibling}get isLastSibling(){return this===this.lastSibling}get hasNoSiblings(){return this.siblings.length===1}get leftSibling(){console.assert(this.parent!==void 0);const t=this.parent.branch(this.parentBranch);return t[t.indexOf(this)-1]}get rightSibling(){console.assert(this.parent!==void 0);const t=this.parent.branch(this.parentBranch);return t[t.indexOf(this)+1]}get hasChildren(){return!!(this._branches&&this.children.length>0)}get firstChild(){return console.assert(this.hasChildren),this.children[0]}get lastChild(){console.assert(this.hasChildren);const{children:t}=this;return t[t.length-1]}get children(){if(this._children)return this._children;if(!this._branches)return[];const t=[];for(const r of bs)if(this._branches[r])for(const n of this._branches[r])t.push(...n.children),t.push(n);return this._children=t,t}render(t){if(this.type==="first"&&!t.atomIdsSettings)return null;const r=or(this.command,this.mode);if(r!=null&&r.render)return r.render(this,t);const n=new Er({parent:t},this.style);let i=this.createBox(n,{classes:this.parent?"":"ML__base"});return i?(!this.subsupPlacement&&(this.superscript||this.subscript)&&(i=this.attachSupsub(n,{base:i})),i.wrap(n)):null}attachSupsub(t,r){var n;const i=r.base,a=this.superscript,s=this.subscript;if(!a&&!s)return i;let u=null,d=null;const 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ti({shift:S,children:[{box:d,marginRight:P,marginLeft:this.isCharacterBox()?-i.italic:0}]})):!d&&u&&(h=Math.max(h,D,u.depth+.25*po),O=new ti({shift:-h,children:[{box:u,marginRight:P}]}));return new je([i,new je(O,{caret:this.caret,isSelected:this.isSelected,classes:"msubsup"})],{type:r.type})}attachLimits(t,r){const n=this.superscript?as.createBox(new Er({parent:t,mathstyle:"superscript"},this.style),this.superscript):null,i=this.subscript?as.createBox(new Er({parent:t,mathstyle:"subscript"},this.style),this.subscript):null;return!n&&!i?r.base.wrap(t):Rl(t,v(_({},r),{above:n,below:i}))}bind(t,r){if(!r||t.isPhantom||this.value==="\u200B")return r;let n=this.parent;for(;n&&!n.captureSelection;)n=n.parent;return n!=null&&n.captureSelection||(this.id||(this.id=t.makeID()),r.atomID=this.id),r}createBox(t,r){var n,i,a,s;const u=(n=this.value)!=null?n:this.body,d=(i=r==null?void 0:r.boxType)!=null?i:Nc(this.type);let p=(a=r==null?void 0:r.classes)!=null?a:"";this.mode==="text"&&(p+=" ML__text");const h=typeof u=="string"||u===void 0?new je(u!=null?u:null,{type:d,isSelected:this.isSelected,mode:this.mode,maxFontSize:t.scalingFactor,style:v(_({variant:"normal"},this.style),{fontSize:Math.max(1,t.size+t.mathstyle.sizeDelta)}),letterShapeStyle:t.letterShapeStyle,classes:p}):(s=as.createBox(t,u,{type:d,classes:p}))!=null?s:new je(null);return t.isTight&&(h.isTight=!0),(this.mode!=="math"||this.style.variant==="main")&&(h.italic=0),h.right=h.italic,this.bind(t,h),this.caret&&!this.superscript&&!this.subscript&&(h.caret=this.caret),h}isDigit(){var t;return this.type==="mord"&&this.value?/^[\d,\.]$/.test(this.value):this.type==="group"&&((t=this.body)==null?void 0:t.length)===2?this.body[0].type==="first"&&this.body[1].value===",":!1}asDigit(){var t;return this.type==="mord"&&this.value&&/^[\d,\.]$/.test(this.value)?this.value:this.type==="group"&&((t=this.body)==null?void 0:t.length)===2&&this.body[0].type==="first"&&this.body[1].value===","?".":""}};function _0(e){let t;const r=[];let n=[];for(const i of e)if(!t&&!i.style)n.push(i);else{const a=i.computedStyle;t&&a.color===t.color&&a.backgroundColor===t.backgroundColor&&a.fontSize===t.fontSize?n.push(i):(n.length>0&&r.push(n),n=[i],t=a)}return n.length>0&&r.push(n),r}function M0(e,t,r){var n,i,a,s,u;if(!t||t.length===0)return null;const d=new Er({parent:e},r.style),p=!((n=d.atomIdsSettings)!=null&&n.groupNumbers);let h=[];if(t.length===1){const D=t[0],P=D.render(d);P&&(p&&D.isSelected&&P.selected(!0),h=[P])}else{let D="",P=!0;for(const O of t){(i=d.atomIdsSettings)!=null&&i.groupNumbers&&D&&(P&&O.isDigit()||!P&&Nl(O))&&(d.atomIdsSettings.overrideID=D);const de=O.render(d);d.atomIdsSettings&&(d.atomIdsSettings.overrideID=void 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  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}
.ML__container {
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  flex-flow: row;
  justify-content: space-between;
  align-items: flex-end;
  min-height: 39px;
  /* Need some room for the virtual keyboard toggle */
  width: 100%;
  /* Encourage browsers to consider allocating a hardware accelerated
   layer for this element. */
  isolation: isolate;
  /* Prevent the browser from trying to interpret touch gestures in the field */
  /* "Disabling double-tap to zoom removes the need for browsers to
        delay the generation of click events when the user taps the screen." */
  touch-action: none;
  --_caret-color: var(--caret-color, hsl(var(--_hue), 40%, 49%));
  --_selection-color: var(--selection-color, #000);
  --_selection-background-color: var(--selection-background-color, hsl(var(--_hue), 70%, 85%));
  --_text-highlight-background-color: var(--highlight-text, hsla(var(--_hue), 40%, 50%, 0.1));
  --_contains-highlight-background-color: var(--contains-highlight-background-color, hsl(var(--_hue), 40%, 95%));
  --_smart-fence-color: var(--smart-fence-color, currentColor);
  --_smart-fence-opacity: var(--smart-fence-opacity, 0.5);
  --_latex-color: var(--latex-color, hsl(var(--_hue), 80%, 40%));
  --_correct-color: var(--correct-color, #10a000);
  --_incorrect-color: var(--incorrect-color, #a01b00);
  --_composition-background-color: var(--composition-background-color, #fff1c2);
  --_composition-text-color: var(--composition-text-color, black);
  --_composition-underline-color: var(--composition-underline-color, transparent);
}
/* This is the actual field content (formula) */
.ML__content {
  display: flex;
  align-items: center;
  align-self: center;
  position: relative;
  overflow: hidden;
  padding: 2px 3px 2px 1px;
  width: 100%;
}
.ML__virtual-keyboard-toggle,
.ML__menu-toggle {
  box-sizing: border-box;
  display: flex;
  align-self: center;
  align-items: center;
  flex-shrink: 0;
  flex-direction: column;
  justify-content: center;
  width: 34px;
  height: 34px;
  padding: 0;
  margin-right: 4px;
  cursor: pointer;
  /* Avoid some weird blinking with :hover */
  border-radius: 8px;
  border: 1px solid transparent;
  transition: background 0.2s cubic-bezier(0.64, 0.09, 0.08, 1);
  color: hsl(var(--_hue), 40%, 50%);
  fill: currentColor;
  background: transparent;
}
.ML__virtual-keyboard-toggle:hover,
.ML__menu-toggle:hover {
  background: hsla(0, 0%, 70%, 0.3);
  color: #333;
  fill: currentColor;
}
.ML__virtual-keyboard-toggle > span,
.ML__menu-toggle > span {
  display: flex;
  align-self: center;
  align-items: center;
}
/* The invisible element used to capture keyboard events. We're just trying
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.ML__keyboard-sink {
  display: inline-block;
  resize: none;
  outline: none;
  border: none;
  /* Need these for Microsoft Edge */
  position: fixed;
  clip: rect(0 0 0 0);
  /* Need this to prevent iOS Safari from auto-zooming */
  font-size: 1em;
  font-family: KaTeX_Main;
  line-height: 0.5;
  /* On Chromium, if this is 0, no keyboard events are received */
}
[part="placeholder"] {
  color: var(--neutral-400);
}
.ML__composition {
  background: var(--_composition-background-color);
  color: var(--_composition-text-color);
  text-decoration: underline var(--_composition-underline-color);
}
.ML__caret::after {
  content: '';
  visibility: hidden;
  width: 0;
  display: inline-block;
  height: 0.76em;
  --_caret-width: clamp(2px, 0.08em, 10px);
  border: none;
  border-radius: calc(var(--_caret-width) / 2);
  border-right: var(--_caret-width) solid var(--_caret-color);
  margin-right: calc(-1 * var(--_caret-width));
  position: relative;
  left: -0.045em;
  bottom: -0.05em;
  animation: ML__caret-blink 1.05s step-end forwards infinite;
}
.ML__text-caret::after {
  content: '';
  visibility: hidden;
  width: 0;
  display: inline-block;
  height: 0.76em;
  --_caret-width: clamp(2px, 0.08em, 10px);
  border: none;
  border-radius: calc(var(--_caret-width) / 2);
  border-right: var(--_caret-width) solid var(--_caret-color);
  margin-right: calc(-1 * var(--_caret-width));
  position: relative;
  left: -0.045em;
  bottom: -0.05em;
  animation: ML__caret-blink 1.05s step-end forwards infinite;
}
.ML__latex-caret::after {
  content: '';
  visibility: hidden;
  --_caret-width: clamp(2px, 0.08em, 10px);
  border: none;
  border-radius: calc(var(--_caret-width) / 2);
  border-right: var(--_caret-width) solid var(--_latex-color);
  margin-right: calc(-1 * var(--_caret-width));
  position: relative;
  left: -0.019em;
  animation: ML__caret-blink 1.05s step-end forwards infinite;
}
.ML__focused .ML__latex-caret::after,
.ML__focused .ML__text-caret::after,
.ML__focused .ML__caret::after {
  visibility: visible;
}
.ML__focused .ML__text {
  background: var(--_text-highlight-background-color);
}
/* When using smartFence, the anticipated closing fence is displayed
with this style */
.ML__smart-fence__close {
  opacity: var(--_smart-fence-opacity);
  color: var(--_smart-fence-color);
}
.ML__selected,
.ML__focused .ML__selected .ML__contains-caret,
.ML__focused .ML__selected .ML__smart-fence__close,
.ML__focused .ML__selected .ML__placeholder {
  color: var(--_selection-color);
  opacity: 1;
}
.ML__selection {
  box-sizing: border-box;
  background: var(--_selection-background-color) !important;
}
.ML__contains-caret.ML__close,
.ML__contains-caret.ML__open,
.ML__contains-caret > .ML__close,
.ML__contains-caret > .ML__open,
.ML__contains-caret .ML__sqrt-sign,
.ML__contains-caret .ML__sqrt-line {
  color: var(--_caret-color);
}
.ML__contains-highlight {
  box-sizing: border-box;
  background: transparent;
}
.ML__focused .ML__contains-highlight {
  background: var(--_contains-highlight-background-color);
}
.ML__raw-latex {
  font-family: 'Berkeley Mono', 'IBM Plex Mono', 'Source Code Pro', Consolas, 'Roboto Mono', Menlo, 'Bitstream Vera Sans Mono', 'DejaVu Sans Mono', Monaco, Courier, monospace;
  font-weight: 400;
  font-size: 0.8em;
  letter-spacing: -0.05em;
  color: var(--_latex-color);
}
.ML__suggestion {
  color: var(--neutral-500);
}
.ML__virtual-keyboard-toggle.is-visible.is-pressed:hover {
  background: hsl(var(--_hue), 25%, 35%);
  color: #fafafa;
  fill: currentColor;
}
.ML__virtual-keyboard-toggle:focus {
  outline: none;
  border-radius: 8px;
  border: 2px solid hsl(var(--_hue), 40%, 50%);
}
.ML__virtual-keyboard-toggle.is-pressed,
.ML__virtual-keyboard-toggle.is-active:hover,
.ML__virtual-keyboard-toggle.is-active {
  background: hsl(var(--_hue), 25%, 35%);
  color: #fafafa;
  fill: currentColor;
}
/* Add an attribute 'data-tooltip' to automatically show a
   tooltip over a element on hover.
*/
[data-tooltip] {
  position: relative;
}
[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  display: block;
  z-index: 2;
  pointer-events: none;
  right: auto;
  top: calc(-100% - 4px);
  width: max-content;
  max-width: 200px;
  padding: 8px 8px;
  border-radius: 4px;
  background: #616161;
  color: #fff;
  box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 1px 5px 0 rgba(0, 0, 0, 0.12), 0 3px 1px -2px rgba(0, 0, 0, 0.2);
  text-align: center;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  font-style: normal;
  font-weight: 400;
  font-size: 13px;
  /* Phone */
  opacity: 0;
  transform: scale(0.5);
}
@media only screen and (max-width: 767px) {
  [data-tooltip]::after {
    padding: 8px 16px;
    font-size: 16px;
  }
}
menu [data-tooltip]::after {
  left: 100%;
  top: 0%;
}
menu .ML__base {
  cursor: default;
}
/** Don't display if we're tracking, i.e. have the pointer down */
.tracking [data-tooltip]:hover::after {
  /* Use visibility, not display. Display will remove the after from the DOM, and the override below will not work */
  visibility: hidden;
}
/** But do display if tracking and inside a menu */
.tracking menu li[data-tooltip]:hover::after,
[data-tooltip]:hover::after {
  visibility: visible;
  opacity: 1;
  transform: scale(1);
  transition-property: opacity, scale;
  transition-duration: 0.15s;
  transition-delay: 1s;
  transition-timing-function: cubic-bezier(0.4, 0, 1, 1);
}
.ML__prompt {
  border-radius: 2px;
}
.ML__editablePromptBox {
  outline: 1px solid #acacac;
  border-radius: 2px;
  z-index: -1;
}
.ML__focusedPromptBox {
  outline: highlight auto 1px;
}
.ML__lockedPromptBox {
  background-color: rgba(142, 142, 141, 0.4);
  z-index: -1;
}
.ML__correctPromptBox {
  outline: 1px solid var(--_correct-color);
  box-shadow: 0 0 5px var(--_correct-color);
}
.ML__incorrectPromptBox {
  outline: 1px solid var(--_incorrect-color);
  box-shadow: 0 0 5px var(--_incorrect-color);
}
.variant-submenu {
  display: flex;
  flex-direction: column;
  padding: 8px;
}
.variant-submenu [part=menu-item] {
  font-size: 2rem;
  text-align: center;
  margin: 0;
}
.insert-matrix-submenu {
  display: grid;
  padding: 8px;
  align-content: center;
  justify-content: center;
  grid-template-columns: repeat(5, minmax(0, 1fr));
}
.insert-matrix-submenu [part=menu-item] {
  font-size: 21px;
  border: none;
  border-radius: 0;
  line-height: 21px;
  text-align: center;
  padding: 0;
  margin: 0;
}
.border-submenu [part=menu-item] {
  font-size: 2rem;
  line-height: 1.2;
  text-align: center;
}
.swatches-submenu {
  --_swatch-size: 2rem;
  --_columns: 4;
  display: flex;
  flex-flow: wrap;
  padding: 8px;
  max-width: calc(var(--_columns) * (var(--_swatch-size) + 18px) + 16px);
  box-sizing: border-box;
}
.menu-swatch {
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  width: fit-content;
  height: fit-content;
  margin: 2px;
  padding: 0;
  background: var(--neutral-200);
}
.menu-swatch > .label {
  padding: 0;
  margin: 0;
  line-height: 0;
}
.menu-swatch > .label > span {
  display: inline-block;
  margin: 6px;
  min-width: var(--_swatch-size);
  min-height: var(--_swatch-size);
  border-radius: 50%;
}
.menu-swatch.active {
  background: var(--neutral-100);
  scale: 1.4;
}
.menu-swatch.active > .label > span {
  border-radius: 2px;
}
.menu-swatch .ui-checkmark,
.menu-swatch .ui-mixedmark {
  position: absolute;
  margin: 0;
  padding: 0;
  color: white;
}
.menu-swatch.dark-contrast .ui-checkmark,
.menu-swatch.dark-contrast .ui-mixedmark {
  color: #000;
}
`,zl=`.ML__container {
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  --_placeholder-color: var(--placeholder-color, hsl(var(--_hue), 40%, 49%));
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  --_text-font-family: var(--text-font-family, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif);
}
.ML__sr-only {
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  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}
.ML__is-inline {
  display: inline-block;
}
.ML__base {
  visibility: inherit;
  display: inline-block;
  position: relative;
  cursor: text;
  padding: 0;
  margin: 0;
  box-sizing: content-box;
  border: 0;
  outline: 0;
  vertical-align: baseline;
  font-weight: inherit;
  font-family: inherit;
  font-style: inherit;
  text-decoration: none;
  width: min-content;
}
.ML__strut,
.ML__strut--bottom {
  display: inline-block;
  min-height: 0.5em;
}
.ML__small-delim {
  font-family: KaTeX_Main;
}
/* Text mode */
.ML__text {
  font-family: var(--_text-font-family);
  white-space: pre;
}
/* Use cmr for 'math upright' */
.ML__cmr {
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.ML__mathit {
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  */
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.ML__mathbf {
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}
/* Lowercase greek symbols should stick to math font when \\mathbf is applied 
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}
.ML__mathbfit {
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  font-weight: bold;
  font-style: italic;
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.ML__ams {
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}
/* Blackboard */
.ML__bb {
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.ML__cal {
  font-family: KaTeX_Caligraphic;
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.ML__frak {
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.ML__tt {
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.ML__script {
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.ML__sans {
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.ML__series_ul {
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.ML__series_el {
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.ML__series_l {
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.ML__series_sl {
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.ML__series_sb {
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.ML__bold,
.ML__boldsymbol {
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.ML__series_eb {
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.ML__series_ub {
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.ML__series_uc {
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}
.ML__series_ec {
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}
.ML__series_c {
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.ML__series_sc {
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.ML__series_sx {
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.ML__series_x {
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}
.ML__series_ex {
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.ML__series_ux {
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.ML__it {
  font-style: italic;
}
.ML__shape_ol {
  -webkit-text-stroke: 1px black;
  text-stroke: 1px black;
  color: transparent;
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.ML__shape_sc {
  font-variant: small-caps;
}
.ML__shape_sl {
  font-style: oblique;
}
/* First level emphasis */
.ML__emph {
  color: #bc2612;
}
/* Second level emphasis */
.ML__emph .ML__emph {
  color: #0c7f99;
}
.ML__highlight {
  color: #007cb2;
  background: #edd1b0;
}
.ML__center {
  text-align: center;
}
.ML__label_padding {
  padding: 0 0.5em;
}
.ML__frac-line {
  width: 100%;
  min-height: 1px;
}
.ML__frac-line:after {
  content: '';
  display: block;
  margin-top: max(-1px, -0.04em);
  min-height: max(1px, 0.04em);
  /* Ensure the line is visible when printing even if "turn off background images" is on*/
  -webkit-print-color-adjust: exact;
  print-color-adjust: exact;
  /* There's a bug since Chrome 62 where 
      sub-pixel border lines don't draw at some zoom 
      levels (110%, 90%). 
      Setting the min-height used to work around it, but that workaround
      broke in Chrome 84 or so.
      Setting the background (and the min-height) seems to work for now.
      */
  background: currentColor;
  box-sizing: content-box;
  /* Vuetify sets the box-sizing to inherit 
            causes the fraction line to not draw at all sizes (see #26) */
  /* On some versions of Firefox on Windows, the line fails to 
            draw at some zoom levels, but setting the transform triggers
            the hardware accelerated path, which works */
  transform: translate(0, 0);
}
.ML__sqrt {
  display: inline-block;
}
.ML__sqrt-sign {
  display: inline-block;
  position: relative;
}
.ML__sqrt-line {
  display: inline-block;
  height: max(1px, 0.04em);
  width: 100%;
}
.ML__sqrt-line:before {
  content: '';
  display: block;
  margin-top: min(-1px, -0.04em);
  min-height: max(1px, 0.04em);
  /* Ensure the line is visible when printing even if "turn off background images" is on*/
  -webkit-print-color-adjust: exact;
  print-color-adjust: exact;
  background: currentColor;
  /* On some versions of Firefox on Windows, the line fails to 
            draw at some zoom levels, but setting the transform triggers
            the hardware accelerated path, which works */
  transform: translate(0, 0);
}
.ML__sqrt-line:after {
  border-bottom-width: 1px;
  content: ' ';
  display: block;
  margin-top: -0.1em;
}
.ML__sqrt-index {
  margin-left: 0.27777778em;
  margin-right: -0.55555556em;
}
.ML__delim-size1 {
  font-family: KaTeX_Size1;
}
.ML__delim-size2 {
  font-family: KaTeX_Size2;
}
.ML__delim-size3 {
  font-family: KaTeX_Size3;
}
.ML__delim-size4 {
  font-family: KaTeX_Size4;
}
.ML__delim-mult .delim-size1 > span {
  font-family: KaTeX_Size1;
}
.ML__delim-mult .delim-size4 > span {
  font-family: KaTeX_Size4;
}
.ML__accent-body > span {
  font-family: KaTeX_Main;
  width: 0;
}
.ML__accent-vec {
  position: relative;
  left: 0.24em;
}
/** The markup for a LaTeX formula, either in an editable mathfield or 
    in a static display.
*/
.ML__latex {
  display: inline-block;
  direction: ltr;
  text-align: left;
  text-indent: 0;
  text-rendering: auto;
  font-family: KaTeX_Main, 'Times New Roman', serif;
  font-style: normal;
  font-size-adjust: none;
  font-stretch: normal;
  font-variant-caps: normal;
  letter-spacing: normal;
  line-height: 1.2;
  word-wrap: normal;
  word-spacing: normal;
  white-space: nowrap;
  text-shadow: none;
  -webkit-user-select: none;
  user-select: none;
  width: min-content;
}
.ML__latex .style-wrap {
  position: relative;
}
.ML__latex .mfrac {
  display: inline-block;
}
.ML__latex .left-right {
  display: inline-block;
}
.ML__latex .vlist-t {
  display: inline-table;
  table-layout: fixed;
  border-collapse: collapse;
}
.ML__latex .vlist-r {
  display: table-row;
}
.ML__latex .vlist {
  display: table-cell;
  vertical-align: bottom;
  position: relative;
}
.ML__latex .vlist > span {
  display: block;
  height: 0;
  position: relative;
}
.ML__latex .vlist > span > span {
  display: inline-block;
}
.ML__latex .vlist > span > .pstrut {
  overflow: hidden;
  width: 0;
}
.ML__latex .vlist-t2 {
  margin-right: -2px;
}
.ML__latex .vlist-s {
  display: table-cell;
  vertical-align: bottom;
  font-size: 1px;
  width: 2px;
  min-width: 2px;
}
.ML__latex .msubsup {
  text-align: left;
}
.ML__latex .negativethinspace {
  display: inline-block;
  margin-left: -0.16667em;
  height: 0.71em;
}
.ML__latex .thinspace {
  display: inline-block;
  width: 0.16667em;
  height: 0.71em;
}
.ML__latex .mediumspace {
  display: inline-block;
  width: 0.22222em;
  height: 0.71em;
}
.ML__latex .thickspace {
  display: inline-block;
  width: 0.27778em;
  height: 0.71em;
}
.ML__latex .enspace {
  display: inline-block;
  width: 0.5em;
  height: 0.71em;
}
.ML__latex .quad {
  display: inline-block;
  width: 1em;
  height: 0.71em;
}
.ML__latex .qquad {
  display: inline-block;
  width: 2em;
  height: 0.71em;
}
.ML__latex .llap,
.ML__latex .rlap {
  width: 0;
  position: relative;
  display: inline-block;
}
.ML__latex .llap > .inner,
.ML__latex .rlap > .inner {
  position: absolute;
}
.ML__latex .llap > .fix,
.ML__latex .rlap > .fix {
  display: inline-block;
}
.ML__latex .llap > .inner {
  right: 0;
}
.ML__latex .rlap > .inner {
  left: 0;
}
.ML__latex .rule {
  display: inline-block;
  border: solid 0;
  position: relative;
  box-sizing: border-box;
}
.ML__latex .overline .overline-line,
.ML__latex .underline .underline-line {
  width: 100%;
}
.ML__latex .overline .overline-line:before,
.ML__latex .underline .underline-line:before {
  content: '';
  border-bottom-style: solid;
  border-bottom-width: max(1px, 0.04em);
  -webkit-print-color-adjust: exact;
  print-color-adjust: exact;
  display: block;
}
.ML__latex .overline .overline-line:after,
.ML__latex .underline .underline-line:after {
  border-bottom-style: solid;
  border-bottom-width: max(1px, 0.04em);
  -webkit-print-color-adjust: exact;
  print-color-adjust: exact;
  content: '';
  display: block;
  margin-top: -1px;
}
.ML__latex .stretchy {
  display: block;
  position: absolute;
  width: 100%;
  left: 0;
  overflow: hidden;
}
.ML__latex .stretchy:before,
.ML__latex .stretchy:after {
  content: '';
}
.ML__latex .stretchy svg {
  display: block;
  position: absolute;
  width: 100%;
  height: inherit;
  fill: currentColor;
  stroke: currentColor;
  fill-rule: nonzero;
  fill-opacity: 1;
  stroke-width: 1;
  stroke-linecap: butt;
  stroke-linejoin: miter;
  stroke-miterlimit: 4;
  stroke-dasharray: none;
  stroke-dashoffset: 0;
  stroke-opacity: 1;
}
.ML__latex .slice-1-of-2 {
  display: inline-flex;
  position: absolute;
  left: 0;
  width: 50.2%;
  overflow: hidden;
}
.ML__latex .slice-2-of-2 {
  display: inline-flex;
  position: absolute;
  right: 0;
  width: 50.2%;
  overflow: hidden;
}
.ML__latex .slice-1-of-3 {
  display: inline-flex;
  position: absolute;
  left: 0;
  width: 25.1%;
  overflow: hidden;
}
.ML__latex .slice-2-of-3 {
  display: inline-flex;
  position: absolute;
  left: 25%;
  width: 50%;
  overflow: hidden;
}
.ML__latex .slice-3-of-3 {
  display: inline-flex;
  position: absolute;
  right: 0;
  width: 25.1%;
  overflow: hidden;
}
.ML__latex .slice-1-of-1 {
  display: inline-flex;
  position: absolute;
  width: 100%;
  left: 0;
  overflow: hidden;
}
.ML__latex .nulldelimiter {
  display: inline-block;
}
.ML__latex .op-group {
  display: inline-block;
}
.ML__latex .op-symbol {
  position: relative;
}
.ML__latex .op-symbol.small-op {
  font-family: KaTeX_Size1;
}
.ML__latex .op-symbol.large-op {
  font-family: KaTeX_Size2;
}
.ML__latex .mtable .vertical-separator {
  display: inline-block;
  min-width: 1px;
  box-sizing: border-box;
}
.ML__latex .mtable .arraycolsep {
  display: inline-block;
}
.ML__latex .mtable .col-align-m > .vlist-t {
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}
.ML__latex .mtable .col-align-c > .vlist-t {
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}
.ML__latex .mtable .col-align-l > .vlist-t {
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}
.ML__latex .mtable .col-align-r > .vlist-t {
  text-align: right;
}
.ML__error {
  display: inline-block;
  background-image: radial-gradient(ellipse at center, hsl(341, 100%, 40%), rgba(0, 0, 0, 0) 70%);
  background-color: hsla(341, 100%, 40%, 0.1);
  background-repeat: repeat-x;
  background-size: 3px 3px;
  padding-bottom: 3px;
  background-position: 0 100%;
}
.ML__error > .ML__error {
  background: transparent;
  padding: 0;
}
.ML__placeholder {
  color: var(--_placeholder-color);
  opacity: var(--_placeholder-opacity);
  padding-left: 0.4ex;
  padding-right: 0.4ex;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
}
.ML__notation {
  position: absolute;
  box-sizing: border-box;
  line-height: 0;
}
/* This class is used to implement the \`\\mathtip\` and \`\\texttip\` commands
   For UI elements, see \`[data-ML__tooltip]\`
*/
.ML__tooltip-container {
  position: relative;
  transform: scale(0);
}
.ML__tooltip-container .ML__tooltip-content {
  position: fixed;
  display: inline-table;
  visibility: hidden;
  z-index: 2;
  width: max-content;
  max-width: 400px;
  padding: 12px 12px;
  border-radius: 8px;
  background: #616161;
  --_selection-color: #fff;
  color: #fff;
  box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 1px 5px 0 rgba(0, 0, 0, 0.12), 0 3px 1px -2px rgba(0, 0, 0, 0.2);
  opacity: 0;
  transition: opacity 0.15s cubic-bezier(0.4, 0, 1, 1);
}
.ML__tooltip-container .ML__tooltip-content .ML__text {
  white-space: normal;
}
.ML__tooltip-container .ML__tooltip-content .ML__base {
  display: contents;
}
.ML__tooltip-container:hover .ML__tooltip-content {
  visibility: visible;
  opacity: 1;
  font-size: 0.75em;
  transform: scale(1) translate(0, 3em);
}
`,Kl=`#mathlive-environment-popover.is-visible {
  visibility: visible;
}
#mathlive-environment-popover {
  --_environment-panel-height: var(--environment-panel-height, 70px);
  --_accent-color: var(--accent-color, #aaa);
  --_background: var(--environment-panel-background, #fff);
  --_button-background: var(--environment-panel-button-background, white);
  --_button-background-hover: var(--environment-panel-button-background-hover, #f5f5f7);
  --_button-background-active: var(--environment-panel-button-background-active, #f5f5f7);
  --_button-text: var(--environment-panel-button-text, #e3e4e8);
  position: absolute;
  width: calc(var(--_environment-panel-height) * 2);
  height: var(--_environment-panel-height);
  border-radius: 4px;
  border: 1.5px solid var(--_accent-color);
  background-color: var(--_background);
  box-shadow: 0 0 30px 0 var(--environment-shadow, rgba(0, 0, 0, 0.4));
  pointer-events: all;
  visibility: hidden;
}
#mathlive-environment-popover .MLEP__array-buttons {
  height: calc(var(--_environment-panel-height) * 5/4);
  width: calc(var(--_environment-panel-height) * 5/4);
  margin-left: calc(0px - var(--_environment-panel-height) * 0.16);
  margin-top: calc(0px - var(--_environment-panel-height) * 0.19);
}
#mathlive-environment-popover .MLEP__array-buttons .font {
  fill: white;
}
#mathlive-environment-popover .MLEP__array-buttons circle {
  fill: #7f7f7f;
  transition: fill 300ms;
}
#mathlive-environment-popover .MLEP__array-buttons .MLEP__array-insert-background {
  fill-opacity: 1;
  fill: var(--_background);
  stroke: var(--_accent-color);
  stroke-width: 3px;
}
#mathlive-environment-popover .MLEP__array-buttons line {
  stroke: var(--_accent-color);
  stroke-opacity: 0;
  stroke-width: 40;
  pointer-events: none;
  transition: stroke-opacity 300ms;
  stroke-linecap: round;
}
#mathlive-environment-popover .MLEP__array-buttons g[data-command]:hover circle {
  fill: var(--_accent-color);
}
#mathlive-environment-popover .MLEP__array-buttons g[data-command]:hover line {
  stroke-opacity: 1;
}
#mathlive-environment-popover .MLEP__environment-delimiter-controls {
  height: 100%;
  width: 50%;
}
#mathlive-environment-popover .MLEP__environment-delimiter-controls .MLEP__array-delimiter-options {
  width: var(--_environment-panel-height);
  height: var(--_environment-panel-height);
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
  justify-content: space-around;
}
#mathlive-environment-popover .MLEP__environment-delimiter-controls .MLEP__array-delimiter-options svg {
  pointer-events: all;
  margin-top: 2px;
  width: calc(var(--_environment-panel-height) / 3 * 28 / 24);
  height: calc(var(--_environment-panel-height) / 3 - 2px);
  border-radius: calc(var(--_environment-panel-height) / 25);
  background-color: var(--_button-background);
}
#mathlive-environment-popover .MLEP__environment-delimiter-controls .MLEP__array-delimiter-options svg:hover {
  background-color: var(--_button-background-hover);
}
#mathlive-environment-popover .MLEP__environment-delimiter-controls .MLEP__array-delimiter-options svg path,
#mathlive-environment-popover .MLEP__environment-delimiter-controls .MLEP__array-delimiter-options svg line {
  stroke: var(--_button-text);
  stroke-width: 2;
  stroke-linecap: round;
}
#mathlive-environment-popover .MLEP__environment-delimiter-controls .MLEP__array-delimiter-options svg rect,
#mathlive-environment-popover .MLEP__environment-delimiter-controls .MLEP__array-delimiter-options svg path {
  fill-opacity: 0;
}
#mathlive-environment-popover .MLEP__environment-delimiter-controls .MLEP__array-delimiter-options svg.active {
  pointer-events: none;
  background-color: var(--_button-background-active);
}
#mathlive-environment-popover .MLEP__environment-delimiter-controls .MLEP__array-delimiter-options svg.active path,
#mathlive-environment-popover .MLEP__environment-delimiter-controls .MLEP__array-delimiter-options svg.active line {
  stroke: var(--_accent-color);
}
#mathlive-environment-popover .MLEP__environment-delimiter-controls .MLEP__array-delimiter-options svg.active circle {
  fill: var(--_accent-color);
}
`,P0=`/* The element that display info while in latex mode */
#mathlive-suggestion-popover {
  background-color: rgba(97, 97, 97);
  color: #fff;
  text-align: center;
  border-radius: 8px;
  position: fixed;
  z-index: 1;
  display: none;
  flex-direction: column;
  justify-content: center;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.22);
}
#mathlive-suggestion-popover.top-tip::after {
  content: '';
  position: absolute;
  top: -15px;
  left: calc(50% - 15px);
  width: 0;
  height: 0;
  border-left: 15px solid transparent;
  border-right: 15px solid transparent;
  border-bottom: 15px solid rgba(97, 97, 97);
  font-size: 1rem;
}
#mathlive-suggestion-popover.bottom-tip::after {
  content: '';
  position: absolute;
  bottom: -15px;
  left: calc(50% - 15px);
  width: 0;
  height: 0;
  border-left: 15px solid transparent;
  border-right: 15px solid transparent;
  border-top: 15px solid rgba(97, 97, 97);
  font-size: 1rem;
}
#mathlive-suggestion-popover.is-animated {
  transition: all 0.2s cubic-bezier(0.64, 0.09, 0.08, 1);
  animation: ML__fade-in cubic-bezier(0, 0, 0.2, 1) 0.15s;
}
#mathlive-suggestion-popover.is-visible {
  display: flex;
}
@keyframes ML__fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
/* The wrapper class for the entire content of the popover panel */
#mathlive-suggestion-popover ul {
  display: flex;
  flex-flow: column;
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: flex-start;
  max-height: 400px;
  overflow-y: auto;
}
#mathlive-suggestion-popover li {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  margin: 8px;
  padding: 8px;
  width: calc(100% - 16px - 16px);
  column-gap: 1em;
  border-radius: 8px;
  cursor: pointer;
  /* Since the content can be clicked on, provide feedback on hover */
}
#mathlive-suggestion-popover li a {
  color: #5ea6fd;
  padding-top: 0.3em;
  margin-top: 0.4em;
  display: block;
}
#mathlive-suggestion-popover li a:hover {
  color: #5ea6fd;
  text-decoration: underline;
}
#mathlive-suggestion-popover li:hover,
#mathlive-suggestion-popover li.is-pressed,
#mathlive-suggestion-popover li.is-active {
  background: rgba(255, 255, 255, 0.1);
}
/* The command inside a popover (inside a #mathlive-suggestion-popover) */
.ML__popover__command {
  font-size: 1.6rem;
  font-family: KaTeX_Main;
}
.ML__popover__current {
  background: #5ea6fd;
  color: #fff;
}
.ML__popover__latex {
  font-family: 'IBM Plex Mono', 'Source Code Pro', Consolas, 'Roboto Mono', Menlo, 'Bitstream Vera Sans Mono', 'DejaVu Sans Mono', Monaco, Courier, monospace;
  align-self: center;
}
/* The keyboard shortcuts for a symbol as displayed in the popover */
.ML__popover__keybinding {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  font-size: 0.8em;
  opacity: 0.7;
}
/* Style for the character that joins the modifiers of a keyboard shortcut 
(usually a "+" sign)*/
.ML__shortcut-join {
  opacity: 0.5;
}
`,Gc=`/* The element that displays the keys as the user type them */
#mathlive-keystroke-caption-panel {
  visibility: hidden;
  /*min-width: 160px;*/
  /*background-color: rgba(97, 97, 200, .95);*/
  background: var(--secondary, hsl(var(--_hue), 19%, 26%));
  border-color: var(--secondary-border, hsl(0, 0%, 91%));
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16), 0 3px 6px rgba(0, 0, 0, 0.23);
  text-align: center;
  border-radius: 6px;
  padding: 16px;
  position: absolute;
  z-index: 1;
  display: flex;
  flex-direction: row-reverse;
  justify-content: center;
  --keystroke: white;
  --on-keystroke: #555;
  --keystroke-border: #f7f7f7;
}
@media (prefers-color-scheme: dark) {
  body:not([theme='light']) #mathlive-keystroke-caption-panel {
    --keystroke: hsl(var(--_hue), 50%, 30%);
    --on-keystroke: hsl(0, 0%, 98%);
    --keystroke-border: hsl(var(--_hue), 50%, 25%);
  }
}
body[theme='dark'] #mathlive-keystroke-caption-panel {
  --keystroke: hsl(var(--_hue), 50%, 30%);
  --on-keystroke: hsl(0, 0%, 98%);
  --keystroke-border: hsl(var(--_hue), 50%, 25%);
}
#mathlive-keystroke-caption-panel > span {
  min-width: 14px;
  /*height: 8px;*/
  margin: 0 8px 0 0;
  padding: 4px;
  background-color: var(--keystroke);
  color: var(--on-keystroke);
  fill: currentColor;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  font-size: 1em;
  border-radius: 6px;
  border: 2px solid var(--keystroke-border);
  /*box-shadow: 0 7px 14px rgba(0,0,0,0.25), 0 5px 5px rgba(0,0,0,0.22);*/
}
`,bd=`.ML__keyboard {
  --_keyboard-height: 0;
  --_keyboard-zindex: var(--keyboard-zindex, 105);
  --_accent-color: var(--keyboard-accent-color, #0c75d8);
  --_background: var(--keyboard-background, #cacfd7);
  --_border: var(--keyboard-border, #ddd);
  --_padding-horizontal: var(--keyboard-padding-horizontal, 0px);
  --_padding-top: var(--keyboard-padding-top, 5px);
  --_padding-bottom: var(--keyboard-padding-bottom, 0px);
  --_row-padding-left: var(--keyboard-row-padding-left, 0px);
  --_row-padding-right: var(--keyboard-row-padding-right, 0px);
  --_toolbar-text: var(--keyboard-toolbar-text, #2c2e2f);
  --_toolbar-text-active: var(--keyboard-toolbar-text-active, var(--_accent-color));
  --_toolbar-background: var(--keyboard-toolbar-background, transparent);
  --_toolbar-background-hover: var(--keyboard-toolbar-background-hover, #eee);
  --_toolbar-background-selected: var(--keyboard-toolbar-background-selected, transparent);
  --_toolbar-font-size: var(--keyboard-toolbar-font-size, '135%');
  --_horizontal-rule: var(--keyboard-horizontal-rule, 1px solid #fff);
  --_keycap-background: var(--keycap-background, white);
  --_keycap-background-hover: var(--keycap-background-hover, #f5f5f7);
  --_keycap-background-active: var(--keycap-background-active, var(--_accent-color));
  --_keycap-background-pressed: var(--keycap-background-pressed, var(--_accent-color));
  --_keycap-border: var(--keycap-border, #e5e6e9);
  --_keycap-border-bottom: var(--keycap-border-bottom, #8d8f92);
  --_keycap-text: var(--keycap-text, #000);
  --_keycap-text-active: var(--keycap-text-active, #fff);
  --_keycap-text-hover: var(--keycap-text-hover, var(--_keycap-text));
  --_keycap-text-pressed: var(--keycap-text-pressed, #fff);
  --_keycap-shift-text: var(--keycap-shift-text, var(--_accent-color));
  --_keycap-primary-background: var(--keycap-primary-background, var(--_accent-color));
  --_keycap-primary-text: var(--keycap-primary-text, #ddd);
  --_keycap-primary-background-hover: var(--keycap-primary-background-hover, #0d80f2);
  --_keycap-secondary-background: var(--keycap-secondary-background, #a0a9b8);
  --_keycap-secondary-background-hover: var(--keycap-secondary-background-hover, #7d8795);
  --_keycap-secondary-text: var(--keycap-secondary-text, #060707);
  --_keycap-secondary-border: var(--keycap-secondary-border, #c5c9d0);
  --_keycap-secondary-border-bottom: var(--keycap-secondary-border-bottom, #989da6);
  --_keycap-height: var(--keycap-height, 60px);
  /* Keycap width (incl. margin) */
  --_keycap-max-width: var(--keycap-max-width, 100px);
  --_keycap-gap: var(--keycap-gap, 8px);
  --_keycap-font-size: var(--keycap-font-size, clamp(16px, 4cqw, 24px));
  --_keycap-small-font-size: var(--keycap-small-font-size, calc(var(--keycap-font-size) * 0.8));
  --_keycap-extra-small-font-size: var(--keycap-extra-small-font-size, calc(var(--keycap-font-size) / 1.42));
  --_variant-panel-background: var(--variant-panel-background, #fff);
  --_variant-keycap-text: var(--variant-keycap-text, var(--_keycap-text));
  --_variant-keycap-text-active: var(--variant-keycap-text-active, var(--_keycap-text-active));
  --_variant-keycap-background-active: var(--variant-keycap-background-active, var(--_accent-color));
  --_variant-keycap-length: var(--variant-keycap-length, 70px);
  --_variant-keycap-font-size: var(--variant-keycap-font-size, 30px);
  --_variant-keycap-aside-font-size: var(--variant-keycap-aside-font-size, 12px);
  --_keycap-shift-font-size: var(--keycap-shift-font-size, 16px);
  --_keycap-shift-color: var(--keycap-shift-color, var(--_accent-color));
  --_box-placeholder-color: var(--box-placeholder-color, var(--_accent-color));
  --_box-placeholder-pressed-color: var(--box-placeholder-pressed-color, var(--keycap-text-pressed));
}
.is-math-mode .MLK__rows .if-text-mode,
.is-text-mode .MLK__rows .if-math-mode {
  display: none;
}
.if-can-undo,
.if-can-redo,
.if-can-copy,
.if-can-cut,
.if-can-paste {
  opacity: 0.4;
  pointer-events: none;
}
.can-undo .if-can-undo,
.can-redo .if-can-redo,
.can-copy .if-can-copy,
.can-cut .if-can-cut,
.can-paste .if-can-paste {
  opacity: 1;
  pointer-events: all;
}
body > .ML__keyboard {
  position: fixed;
  --_padding-bottom: calc(var(--keyboard-padding-bottom, 0px) + env(safe-area-inset-bottom, 0));
}
body > .ML__keyboard.is-visible > .MLK__backdrop {
  box-shadow: 0 -5px 6px rgba(0, 0, 0, 0.08);
  border-top: 1px solid var(--_border);
}
body > .ML__keyboard.backdrop-is-transparent.is-visible > .MLK__backdrop {
  box-shadow: none;
  border: none;
}
body > .ML__keyboard.is-visible.animate > .MLK__backdrop {
  transition: 0.28s cubic-bezier(0, 0, 0.2, 1);
  transition-property: transform, opacity;
  transition-timing-function: cubic-bezier(0.4, 0, 1, 1);
}
.ML__keyboard {
  position: relative;
  overflow: hidden;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  z-index: var(--_keyboard-zindex);
  box-sizing: border-box;
  outline: none;
  border: none;
  margin: 0;
  padding: 0;
  line-height: 1;
  overflow-wrap: unset;
  text-align: left;
  vertical-align: baseline;
  cursor: auto;
  white-space: pre;
  box-shadow: none;
  opacity: 1;
  transform: none;
  pointer-events: none;
}
.ML__keyboard :where(div) {
  box-sizing: border-box;
  outline: none;
  border: none;
  margin: 0;
  padding: 0;
  line-height: 1;
  overflow-wrap: unset;
  text-align: left;
  vertical-align: baseline;
  cursor: auto;
  white-space: pre;
  box-shadow: none;
  transform: none;
}
.MLK__backdrop {
  position: absolute;
  bottom: calc(-1 * var(--_keyboard-height));
  width: 100%;
  height: var(--_keyboard-height);
  box-sizing: border-box;
  padding-top: var(--_padding-top);
  padding-bottom: var(--_padding-bottom);
  padding-left: var(--_padding-horizontal);
  padding-right: var(--_padding-horizontal);
  opacity: 0;
  visibility: hidden;
  transform: translate(0, 0);
  background: var(--_background);
}
.backdrop-is-transparent .MLK__backdrop {
  background: transparent;
}
/* If a custom layout has a custom container/backdrop
  (backdrop-is-transparent), make sure to let pointer event go through. */
.backdrop-is-transparent .MLK__plate {
  background: transparent;
  pointer-events: none;
}
/* If a custom layout has a custom container/backdrop, make sure to 
   allow pointer events on it. */
.backdrop-is-transparent .MLK__layer > div > div {
  pointer-events: all;
}
.ML__keyboard.is-visible > .MLK__backdrop {
  transform: translate(0, calc(-1 * var(--_keyboard-height)));
  opacity: 1;
  visibility: visible;
}
.caps-lock-indicator {
  display: none;
  width: 8px;
  height: 8px;
  background: #0cbc0c;
  box-shadow: inset 0 0 4px 0 #13ca13, 0 0 4px 0 #a9ef48;
  border-radius: 8px;
  right: 8px;
  top: 8px;
  position: absolute;
}
.ML__keyboard.is-caps-lock .caps-lock-indicator {
  display: block;
}
.ML__keyboard.is-caps-lock .shift {
  background: var(--_keycap-background-active);
  color: var(--_keycap-text-active);
}
.MLK__plate {
  position: absolute;
  top: var(--_padding-top);
  left: var(--_padding-horizontal);
  width: calc(100% - 2 * var(--_padding-horizontal));
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  container-type: inline-size;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
  pointer-events: all;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  font-size: 16px;
  /* Size of toolbar labels */
  font-weight: 400;
  text-shadow: none;
}
.ML__box-placeholder {
  color: var(--_box-placeholder-color);
}
.MLK__tex {
  font-family: KaTeX_Main, KaTeX_Math, 'Cambria Math', 'Asana Math', OpenSymbol, Symbola, STIX, Times, serif !important;
}
.MLK__tex-math {
  font-family: KaTeX_Math, KaTeX_Main, 'Cambria Math', 'Asana Math', OpenSymbol, Symbola, STIX, Times, serif !important;
  font-style: italic;
}
.MLK__layer {
  display: none;
  outline: none;
}
.MLK__layer.is-visible {
  display: flex;
  flex-flow: column;
}
/* Keyboard layouts are made or rows of keys... */
.MLK__rows {
  --_keycap-width: min(var(--_keycap-max-width), 10cqw);
  display: flex;
  flex-flow: column;
  align-items: center;
  border-collapse: separate;
  clear: both;
  border: 0;
  margin: 0;
  margin-bottom: var(--_keycap-gap);
  gap: var(--_keycap-gap);
  /* If the styling include, e.g., some shadows, they will be
  cut off by the overflow. In that case, set the padding to 
  compensate. */
  padding-left: var(--_row-padding-left);
  padding-right: var(--_row-padding-right);
  overflow: visible;
  touch-action: none;
}
.MLK__rows > .MLK__row {
  display: flex;
  flex-flow: row;
  justify-content: center;
  width: 100%;
  gap: var(--_keycap-gap);
  margin: 0;
  padding: 0;
  /* For the alignment of the text on some modifiers (e.g. shift) */
  /* Extra spacing between two adjacent keys */
}
.MLK__rows > .MLK__row .tex {
  font-family: KaTeX_Math, KaTeX_Main, 'Cambria Math', 'Asana Math', OpenSymbol, Symbola, STIX, Times, serif !important;
}
.MLK__rows > .MLK__row .tex-math {
  font-family: KaTeX_Math, 'Cambria Math', 'Asana Math', OpenSymbol, Symbola, STIX, Times, serif !important;
}
.MLK__rows > .MLK__row .big-op {
  font-size: calc(1.25 * var(--_keycap-font-size));
}
.MLK__rows > .MLK__row .small {
  font-size: var(--_keycap-small-font-size);
}
.MLK__rows > .MLK__row .bottom {
  justify-content: flex-end;
}
.MLK__rows > .MLK__row .left {
  align-items: flex-start;
  padding-left: 12px;
}
.MLK__rows > .MLK__row .right {
  align-items: flex-end;
  padding-right: 12px;
}
.MLK__rows > .MLK__row .w0 {
  width: 0;
}
.MLK__rows > .MLK__row .w5 {
  width: calc(0.5 * var(--_keycap-width) - var(--_keycap-gap));
}
.MLK__rows > .MLK__row .w15 {
  width: calc(1.5 * var(--_keycap-width) - var(--_keycap-gap));
}
.MLK__rows > .MLK__row .w20 {
  width: calc(2 * var(--_keycap-width) - var(--_keycap-gap));
}
.MLK__rows > .MLK__row .w40 {
  width: calc(4 * var(--_keycap-width) - var(--_keycap-gap));
}
.MLK__rows > .MLK__row .w50 {
  width: calc(5 * var(--_keycap-width) - var(--_keycap-gap));
}
.MLK__rows > .MLK__row .MLK__keycap.w50 {
  font-size: 80%;
  padding-top: 10px;
  font-weight: 100;
}
.MLK__rows > .MLK__row .separator {
  background: transparent;
  border: none;
  pointer-events: none;
}
.MLK__rows > .MLK__row .horizontal-rule {
  height: 6px;
  margin-top: 3px;
  margin-bottom: 0;
  width: 100%;
  border-radius: 0;
  border-top: var(--_horizontal-rule);
}
.MLK__rows > .MLK__row .ghost {
  background: var(--_toolbar-background);
  border: none;
  color: var(--_toolbar-text);
}
.MLK__rows > .MLK__row .ghost:hover {
  background: var(--_toolbar-background-hover);
}
.MLK__rows > .MLK__row .bigfnbutton {
  font-size: var(--_keycap-extra-small-font-size);
}
.MLK__rows > .MLK__row .shift,
.MLK__rows > .MLK__row .action {
  color: var(--_keycap-secondary-text);
  background: var(--_keycap-secondary-background);
  border-color: var(--_keycap-secondary-border);
  border-bottom-color: var(--_keycap-secondary-border-bottom);
  line-height: 0.8;
  font-size: min(1rem, var(--_keycap-small-font-size));
  font-weight: 600;
  padding: 8px 12px 8px 12px;
}
.MLK__rows > .MLK__row .shift:hover,
.MLK__rows > .MLK__row .action:hover {
  background: var(--_keycap-secondary-background-hover);
}
.MLK__rows > .MLK__row .action.primary {
  background: var(--_keycap-primary-background);
  color: var(--_keycap-primary-text);
}
.MLK__rows > .MLK__row .action.primary:hover {
  background: var(--_keycap-primary-background-hover);
  color: var(--_keycap-primary-text);
}
.MLK__rows > .MLK__row .shift.selected,
.MLK__rows > .MLK__row .action.selected {
  color: var(--_toolbar-text-active);
}
.MLK__rows > .MLK__row .shift.selected.is-pressed,
.MLK__rows > .MLK__row .action.selected.is-pressed,
.MLK__rows > .MLK__row .shift.selected.is-active,
.MLK__rows > .MLK__row .action.selected.is-active {
  color: white;
}
.MLK__rows > .MLK__row .warning {
  background: #cd0030;
  color: white;
}
.MLK__rows > .MLK__row .warning svg.svg-glyph {
  width: 24px;
  height: 24px;
  min-height: 24px;
}
/** A regular keycap
 * Use the :where() pseudo-class to give it a very low specifity, 
 * so that it can be overriden by custom style.
 */
:where(.MLK__rows > .MLK__row  div) {
  display: flex;
  flex-flow: column;
  align-items: center;
  justify-content: space-evenly;
  width: calc(var(--_keycap-width) - var(--_keycap-gap));
  height: var(--_keycap-height);
  box-sizing: border-box;
  padding: 0;
  vertical-align: top;
  text-align: center;
  float: left;
  color: var(--_keycap-text);
  fill: currentColor;
  font-size: var(--_keycap-font-size);
  background: var(--_keycap-background);
  border: 1px solid var(--_keycap-border);
  border-bottom-color: var(--_keycap-border-bottom);
  border-radius: 6px;
  cursor: pointer;
  touch-action: none;
  /* Keys with a variants panel */
  position: relative;
  overflow: hidden;
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
:where(.MLK__rows > .MLK__row  div):hover {
  overflow: visible;
  background: var(--_keycap-background-hover);
}
:where(.MLK__rows > .MLK__row  div) .ML__latex {
  pointer-events: none;
  touch-action: none;
}
:where(.MLK__rows > .MLK__row  div) svg.svg-glyph {
  margin: 8px 0;
  width: 20px;
  height: 20px;
  min-height: 20px;
}
:where(.MLK__rows > .MLK__row  div) svg.svg-glyph-lg {
  margin: 8px 0;
  width: 24px;
  height: 24px;
  min-height: 24px;
}
:where(.MLK__rows > .MLK__row  div).MLK__tex-math {
  font-size: 25px;
}
:where(.MLK__rows > .MLK__row  div).is-pressed {
  background: var(--_keycap-background-pressed);
  color: var(--_keycap-text-pressed);
  --_box-placeholder-color: var(--_box-placeholder-pressed-color);
}
:where(.MLK__rows > .MLK__row  div).MLK__keycap.is-active,
:where(.MLK__rows > .MLK__row  div).action.is-active,
:where(.MLK__rows > .MLK__row  div).MLK__keycap.is-pressed,
:where(.MLK__rows > .MLK__row  div).action.is-pressed {
  z-index: calc(var(--_keyboard-zindex) - 5);
}
:where(.MLK__rows > .MLK__row  div).MLK__keycap.is-active aside,
:where(.MLK__rows > .MLK__row  div).action.is-active aside,
:where(.MLK__rows > .MLK__row  div).MLK__keycap.is-pressed aside,
:where(.MLK__rows > .MLK__row  div).action.is-pressed aside {
  display: none;
}
:where(.MLK__rows > .MLK__row  div).MLK__keycap.is-active .MLK__shift,
:where(.MLK__rows > .MLK__row  div).action.is-active .MLK__shift,
:where(.MLK__rows > .MLK__row  div).MLK__keycap.is-pressed .MLK__shift,
:where(.MLK__rows > .MLK__row  div).action.is-pressed .MLK__shift {
  display: none;
}
:where(.MLK__rows > .MLK__row  div).shift.is-pressed,
:where(.MLK__rows > .MLK__row  div).MLK__keycap.is-pressed,
:where(.MLK__rows > .MLK__row  div).action.is-pressed {
  background: var(--_keycap-background-pressed);
  color: var(--_keycap-text-pressed);
}
:where(.MLK__rows > .MLK__row  div).shift.is-active,
:where(.MLK__rows > .MLK__row  div).MLK__keycap.is-active,
:where(.MLK__rows > .MLK__row  div).action.is-active {
  background: var(--_keycap-background-active);
  color: var(--_keycap-text-active);
  --_box-placeholder-color: var(--_box-placeholder-pressed-color);
}
:where(.MLK__rows > .MLK__row  div) small {
  color: var(--_keycap-secondary-text);
}
:where(.MLK__rows > .MLK__row  div) aside {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  font-size: 10px;
  line-height: 10px;
  color: var(--_keycap-secondary-text);
}
/* Add an attribute 'data-tooltip' to display a tooltip on hover.
Note there are a different set of tooltip rules for the keyboard toggle
(it's in a different CSS tree) */
.ML__keyboard [data-tooltip] {
  position: relative;
}
.ML__keyboard [data-tooltip]::after {
  position: absolute;
  display: inline-table;
  content: attr(data-tooltip);
  top: inherit;
  bottom: 100%;
  width: max-content;
  max-width: 200px;
  padding: 8px 8px;
  background: #616161;
  color: #fff;
  text-align: center;
  z-index: 2;
  box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 1px 5px 0 rgba(0, 0, 0, 0.12), 0 3px 1px -2px rgba(0, 0, 0, 0.2);
  border-radius: 2px;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  font-weight: 400;
  font-size: 12px;
  transition: all 0.15s cubic-bezier(0.4, 0, 1, 1) 1s;
  opacity: 0;
  transform: scale(0.5);
}
.ML__keyboard [data-tooltip]:hover {
  position: relative;
}
.ML__keyboard [data-tooltip]:hover::after {
  opacity: 1;
  transform: scale(1);
}
.MLK__toolbar {
  align-self: center;
  display: flex;
  flex-flow: row;
  justify-content: space-between;
  width: 100%;
  max-width: 996px;
  min-height: 32px;
  /* Icons for undo/redo, etc. */
}
.MLK__toolbar svg {
  height: 20px;
  width: 20px;
}
.MLK__toolbar > .left {
  position: relative;
  display: flex;
  justify-content: flex-start;
  flex-flow: row;
}
.MLK__toolbar > .right {
  display: flex;
  justify-content: flex-end;
  flex-flow: row;
}
.MLK__toolbar > div > div {
  /* "button" in the toolbar */
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--_toolbar-text);
  fill: currentColor;
  background: var(--_toolbar-background);
  font-size: var(--_toolbar-font-size);
  padding: 4px 15px;
  cursor: pointer;
  width: max-content;
  min-width: 42px;
  min-height: 34px;
  border: none;
  padding-left: 10px;
  padding-right: 10px;
  padding-bottom: 8px;
  padding-top: 8px;
  margin-top: 0;
  margin-bottom: 4px;
  margin-left: 4px;
  margin-right: 4px;
  border-radius: 8px;
  box-shadow: none;
  border-bottom: 2px solid transparent;
}
.MLK__toolbar > div > div:not(.disabled):not(.selected):hover {
  background: var(--_toolbar-background-hover);
}
.MLK__toolbar > div > div.disabled svg,
.MLK__toolbar > div > div.disabled:hover svg,
.MLK__toolbar > div > div.disabled.is-pressed svg {
  color: var(--_toolbar-text);
  opacity: 0.2;
}
.MLK__toolbar > div > div:hover,
.MLK__toolbar > div > div:active,
.MLK__toolbar > div > div.is-pressed,
.MLK__toolbar > div > div.is-active {
  color: var(--_toolbar-text-active);
}
.MLK__toolbar > div > div.selected {
  color: var(--_toolbar-text-active);
  background: var(--_toolbar-background-selected);
  border-radius: 0;
  border-bottom-color: var(--_toolbar-text-active);
  padding-bottom: 4px;
  margin-bottom: 8px;
}
/* This is the element that displays variants on press+hold */
.MLK__variant-panel {
  visibility: hidden;
  position: fixed;
  display: flex;
  flex-flow: row wrap-reverse;
  justify-content: center;
  align-content: center;
  margin: 0;
  padding: 0;
  bottom: auto;
  top: 0;
  box-sizing: content-box;
  transform: none;
  z-index: calc(var(--_keyboard-zindex) + 1);
  touch-action: none;
  max-width: 350px;
  background: var(--_variant-panel-background);
  text-align: center;
  border-radius: 6px;
  padding: 6px;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.22);
  transition: none;
}
.MLK__variant-panel.is-visible {
  visibility: visible;
}
.MLK__variant-panel.compact {
  --_variant-keycap-length: var(--variant-keycap-length, 50px);
  --_variant-keycap-font-size: var(--variant-keycap-font-size, 24px);
  --_variant-keycap-aside-font-size: var(--variant-keycap-aside-font-size, 10px);
}
.MLK__variant-panel .item {
  display: flex;
  flex-flow: column;
  align-items: center;
  justify-content: center;
  font-size: var(--_variant-keycap-font-size);
  height: var(--_variant-keycap-length);
  width: var(--_variant-keycap-length);
  margin: 0;
  box-sizing: border-box;
  border-radius: 5px;
  border: 1px solid transparent;
  background: transparent;
  pointer-events: all;
  cursor: pointer;
  color: var(--_variant-keycap-text);
  fill: currentColor;
}
@media (max-height: 412px) {
  .MLK__variant-panel .item {
    --_variant-keycap-font-size: var(--variant-keycap-font-size, 24px);
    --_variant-keycap-length: var(--variant-keycap-length, 50px);
  }
}
.MLK__variant-panel .item .ML__latex {
  pointer-events: none;
}
.MLK__variant-panel .item.is-active {
  background: var(--_variant-keycap-background-active);
  color: var(--_variant-keycap-text-active);
}
.MLK__variant-panel .item.is-pressed {
  background: var(--_variant-keycap-background-pressed);
  color: var(--_variant-keycap-text-pressed);
}
.MLK__variant-panel .item.small {
  font-size: var(--_keycap-small-font-size);
}
.MLK__variant-panel .item.swatch-button {
  box-sizing: border-box;
  background: #fbfbfb;
}
.MLK__variant-panel .item.swatch-button > span {
  display: inline-block;
  margin: 6px;
  width: calc(100% - 12px);
  height: calc(100% - 12px);
  border-radius: 50%;
}
.MLK__variant-panel .item.swatch-button:hover {
  background: #f0f0f0;
}
.MLK__variant-panel .item.swatch-button:hover > span {
  border-radius: 2px;
}
.MLK__variant-panel .item.box > div,
.MLK__variant-panel .item.box > span {
  border: 1px dashed rgba(0, 0, 0, 0.24);
}
.MLK__variant-panel .item .warning {
  min-height: 60px;
  min-width: 60px;
  background: #cd0030;
  color: white;
  padding: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 5px;
}
.MLK__variant-panel .item .warning.is-pressed,
.MLK__variant-panel .item .warning.is-active {
  background: red;
}
.MLK__variant-panel .item .warning svg.svg-glyph {
  width: 50px;
  height: 50px;
}
.MLK__variant-panel .item aside {
  font-size: var(--_variant-keycap-aside-font-size);
  line-height: 12px;
  opacity: 0.78;
  padding-top: 2px;
}
.MLK__keycap {
  position: relative;
}
.MLK__shift {
  display: block;
  position: absolute;
  right: 4px;
  top: 4px;
  font-size: var(--_keycap-shift-font-size);
  color: var(--_keycap-shift-color);
}
.hide-shift .MLK__shift {
  display: none;
}
@media (max-width: 414px) {
  .MLK__variant-panel {
    max-width: 350px;
    --_variant-keycap-font-size: var(--variant-keycap-font-size, 24px);
    --_variant-keycap-length: var(--variant-keycap-length, 50px);
  }
}
/* @xs breakpoint: iPhone 5 */
@container (max-width: 414px) {
  .MLK__rows {
    --_keycap-gap: max(var(--_keycap-gap, 2px), 2px);
    --_keycap-height: max(var(--_keycap-height), 42px);
    --_keycap-width: min(min(var(--_keycap-max-width), 10cqw), 62px);
  }
  .MLK__toolbar > div > div {
    font-size: 100%;
    margin-left: 2px;
    margin-right: 2px;
  }
  .MLK__rows .shift,
  .MLK__rows .action {
    font-size: 65%;
  }
  .MLK__rows .warning svg.svg-glyph {
    width: 14px;
    height: 14px;
    min-height: 14px;
  }
}
@container (max-width: 744px) {
  .MLK__rows {
    --_keycap-gap: max(var(--keycap-gap, 2px), 2px);
    --_keycap-height: max(var(--keycap-height, 52px), 52px);
    --_keycap-width: min(min(var(--_keycap-max-width), 10cqw), 62px);
  }
  .MLK__toolbar > div > div {
    padding-left: 0;
    padding-right: 0;
  }
  .MLK__tooltip::after {
    padding: 8px 16px;
    font-size: 16px;
  }
  .MLK__rows > .MLK__row > div.fnbutton {
    font-size: 16px;
  }
  .MLK__rows > .MLK__row > div.bigfnbutton {
    font-size: calc(var(--_keycap-extra-small-font-size) / 1.55);
  }
  .MLK__rows > .MLK__row > div.small {
    font-size: 13px;
  }
  .MLK__rows > .MLK__row > div > aside {
    display: none;
  }
  .MLK__shift {
    display: none;
  }
}
/* Medium breakpoint: larger phones */
@container (max-width: 768px) {
  .MLK__rows {
    --_keycap-height: max(var(--keycap-height, 42px), 42px);
  }
  .MLK__rows > .MLK__row > div > small {
    font-size: 14px;
  }
}
@media (max-height: 768px) {
  .MLK__rows {
    --_keycap-height: max(var(--keycap-height, 42px), 42px);
  }
  .MLK__rows > .MLK__row > div > small {
    font-size: 14px;
  }
}
@container (max-width: 1444px) {
  .MLK__rows .if-wide {
    display: none;
  }
}
@media (prefers-color-scheme: dark) {
  .ML__keyboard {
    --_accent-color: var(--keyboard-accent-color, #0b5c9c);
    --_background: var(--keyboard-background, #151515);
    --_border: var(--keyboard-border, transparent);
    --_toolbar-text: var(--keyboard-toolbar-text, #e3e4e8);
    --_toolbar-background-hover: var(--keyboard-toolbar-background-hover, #303030);
    --keyboard-toolbar-background-hover: #303030;
    --_horizontal-rule: var(--keyboard-horizontal-rule, 1px solid #303030);
    --_keycap-background: var(--keycap-background, #1f2022);
    --_keycap-background-hover: var(--keycap-background-hover, #2f3032);
    --_keycap-border: var(--_keycap-border, transparent);
    --_keycap-border-bottom: var(--_keycap-border-bottom, transparent);
    --_keycap-text: var(--keycap-text, #e3e4e8);
    --_keycap-secondary-background: var(--keycap-secondary-background, #3d4144);
    --_keycap-secondary-background-hover: var(--keycap-secondary-background-hover, #4d5154);
    --_keycap-secondary-text: var(--keycap-secondary-text, #e7ebee);
    --keycap-secondary-border: transparent;
    --keycap-secondary-border-bottom: transparent;
    --_keycap-secondary-border: var(--keycap-secondary-border, transparent);
    --_keycap-secondary-border-bottom: var(--keycap-secondary-border-bottom, transparent);
    --_variant-panel-background: var(--variant-panel-background, #303030);
    --_variant-keycap-text-active: var(--variant-keycap-text-active, #fff);
  }
}
/* Same as the media query, but with a class */
[theme='dark'] .ML__keyboard {
  --_accent-color: var(--keyboard-accent-color, #0b5c9c);
  --_background: var(--keyboard-background, #151515);
  --_border: var(--keyboard-border, transparent);
  --_toolbar-text: var(--keyboard-toolbar-text, #e3e4e8);
  --_toolbar-background-hover: var(--keyboard-toolbar-background-hover, #303030);
  --keyboard-toolbar-background-hover: #303030;
  --_horizontal-rule: var(--keyboard-horizontal-rule, 1px solid #303030);
  --_keycap-background: var(--keycap-background, #1f2022);
  --_keycap-background-hover: var(--keycap-background-hover, #2f3032);
  --_keycap-border: var(--_keycap-border, transparent);
  --_keycap-border-bottom: var(--_keycap-border-bottom, transparent);
  --_keycap-text: var(--keycap-text, #e3e4e8);
  --_keycap-secondary-background: var(--keycap-secondary-background, #3d4144);
  --_keycap-secondary-background-hover: var(--keycap-secondary-background-hover, #4d5154);
  --_keycap-secondary-text: var(--keycap-secondary-text, #e7ebee);
  --keycap-secondary-border: transparent;
  --keycap-secondary-border-bottom: transparent;
  --_keycap-secondary-border: var(--keycap-secondary-border, transparent);
  --_keycap-secondary-border-bottom: var(--keycap-secondary-border-bottom, transparent);
  --_variant-panel-background: var(--variant-panel-background, #303030);
  --_variant-keycap-text-active: var(--variant-keycap-text-active, #fff);
}
[theme='light'] .ML__keyboard {
  --_accent-color: var(--keyboard-accent-color, #0c75d8);
  --_background: var(--keyboard-background, #cacfd7);
  --_border: var(--keyboard-border, #ddd);
  --_toolbar-text: var(--keyboard-toolbar-text, #2c2e2f);
  --_toolbar-background: var(--keyboard-toolbar-background, transparent);
  --_toolbar-background-hover: var(--keyboard-toolbar-background-hover, #eee);
  --_toolbar-background-selected: var(--keyboard-toolbar-background-selected, transparent);
  --_horizontal-rule: var(--keyboard-horizontal-rule, 1px solid #fff);
  --_keycap-background: var(--keycap-background, white);
  --_keycap-background-hover: var(--keycap-background-hover, #f5f5f7);
  --_keycap-background-active: var(--keycap-background-active, var(--_accent-color));
  --_keycap-background-pressed: var(--keycap-background-pressed, var(--_accent-color));
  --_keycap-border: var(--_keycap-border, #e5e6e9);
  --_keycap-border-bottom: var(--_keycap-border-bottom, #8d8f92);
  --_keycap-text: var(--keycap-text, #000);
  --_keycap-text-active: var(--keycap-text-active, #fff);
  --_keycap-text-hover: var(--keycap-text-hover, var(--_keycap-text));
  --_keycap-text-pressed: var(--keycap-text-pressed, #fff);
  --_keycap-shift-text: var(--keycap-shift-text, var(--_accent-color));
  --_keycap-secondary-background: var(--keycap-secondary-background, #a0a9b8);
  --_keycap-secondary-background-hover: var(--keycap-secondary-background-hover, #7d8795);
  --_keycap-secondary-text: var(--keycap-secondary-text, #060707);
  --_keycap-secondary-border: var(--keycap-secondary-border, #c5c9d0);
  --_keycap-secondary-border-bottom: var(--keycap-secondary-border-bottom, #989da6);
  --_variant-panel-background: var(--variant-panel-background, #fff);
  --_variant-keycap-text: var(--variant-keycap-textvar, var(--_keycap-text));
  --_variant-keycap-text-active: var(--variant-keycap-text-active, var(--_keycap-text-active));
  --_variant-keycap-background-active: var(--variant-keycap-background-active, var(--_accent-color));
}
`,R0=`:host {
  --primary-color: #5898ff;
  --primary-color-dimmed: #c0c0f0;
  --primary-color-dark: var(--blue-500);
  --primary-color-light: var(--blue-100);
  --primary-color-reverse: #ffffff;
  --secondary-color: #ff8a65;
  --secondary-color-dimmed: #f0d5c5;
  --secondary-color-dark: var(--orange-500);
  --secondary-color-light: var(--orange-100);
  --secondary-color-reverse: #ffffff;
  --link-color: #5898ff;
  --link-color-dimmed: #c5c5c5;
  --link-color-dark: #121212;
  --link-color-light: #e2e2e2;
  --link-color-reverse: #ffffff;
  --semantic-blue: var(--blue-700);
  --semantic-red: var(--red-400);
  --semantic-orange: var(--orange-400);
  --semantic-green: var(--green-700);
  --neutral-100: #f5f5f5;
  --neutral-200: #eeeeee;
  --neutral-300: #e0e0e0;
  --neutral-400: #bdbdbd;
  --neutral-500: #9e9e9e;
  --neutral-600: #757575;
  --neutral-700: #616161;
  --neutral-800: #424242;
  --neutral-900: #212121;
  --red-25: #fff8f7;
  --red-50: #fff1ef;
  --red-100: #ffeae6;
  --red-200: #ffcac1;
  --red-300: #ffa495;
  --red-400: #ff7865;
  --red-500: #f21c0d;
  --red-600: #e50018;
  --red-700: #d30024;
  --red-800: #bd002c;
  --red-900: #a1002f;
  --orange-25: #fffbf8;
  --orange-50: #fff7f1;
  --orange-100: #fff3ea;
  --orange-200: #ffe1c9;
  --orange-300: #ffcca2;
  --orange-400: #ffb677;
  --orange-500: #fe9310;
  --orange-600: #f58700;
  --orange-700: #ea7c00;
  --orange-800: #dc6d00;
  --orange-900: #ca5b00;
  --brown-25: #fff8ef;
  --brown-50: #fff1df;
  --brown-100: #ffe9ce;
  --brown-200: #ebcca6;
  --brown-300: #cdaf8a;
  --brown-400: #af936f;
  --brown-500: #856a47;
  --brown-600: #7f5e34;
  --brown-700: #78511f;
  --brown-800: #6e4200;
  --brown-900: #593200;
  --yellow-25: #fffdf9;
  --yellow-50: #fffcf2;
  --yellow-100: #fffaec;
  --yellow-200: #fff2ce;
  --yellow-300: #ffe8ab;
  --yellow-400: #ffdf85;
  --yellow-500: #ffcf33;
  --yellow-600: #f1c000;
  --yellow-700: #dfb200;
  --yellow-800: #c9a000;
  --yellow-900: #ad8a00;
  --lime-25: #f4ffee;
  --lime-50: #e9ffdd;
  --lime-100: #ddffca;
  --lime-200: #a8fb6f;
  --lime-300: #94e659;
  --lime-400: #80d142;
  --lime-500: #63b215;
  --lime-600: #45a000;
  --lime-700: #268e00;
  --lime-800: #007417;
  --lime-900: #005321;
  --green-25: #f5fff5;
  --green-50: #ebffea;
  --green-100: #e0ffdf;
  --green-200: #a7ffa7;
  --green-300: #5afa65;
  --green-400: #45e953;
  --green-500: #17cf36;
  --green-600: #00b944;
  --green-700: #00a34a;
  --green-800: #008749;
  --green-900: #00653e;
  --teal-25: #f3ffff;
  --teal-50: #e6fffe;
  --teal-100: #d9fffe;
  --teal-200: #8dfffe;
  --teal-300: #57f4f4;
  --teal-400: #43e5e5;
  --teal-500: #17cfcf;
  --teal-600: #00c2c0;
  --teal-700: #00b5b1;
  --teal-800: #00a49e;
  --teal-900: #009087;
  --cyan-25: #f7fcff;
  --cyan-50: #eff8ff;
  --cyan-100: #e7f5ff;
  --cyan-200: #c2e6ff;
  --cyan-300: #95d5ff;
  --cyan-400: #61c4ff;
  --cyan-500: #13a7ec;
  --cyan-600: #069eda;
  --cyan-700: #0095c9;
  --cyan-800: #0088b2;
  --cyan-900: #0a7897;
  --blue-25: #f7faff;
  --blue-50: #eef5ff;
  --blue-100: #e5f1ff;
  --blue-200: #bfdbff;
  --blue-300: #92c2ff;
  --blue-400: #63a8ff;
  --blue-500: #0d80f2;
  --blue-600: #0077db;
  --blue-700: #006dc4;
  --blue-800: #0060a7;
  --blue-900: #005086;
  --indigo-25: #f8f7ff;
  --indigo-50: #f1efff;
  --indigo-100: #eae7ff;
  --indigo-200: #ccc3ff;
  --indigo-300: #ac99ff;
  --indigo-400: #916aff;
  --indigo-500: #63c;
  --indigo-600: #5a21b2;
  --indigo-700: #4e0b99;
  --indigo-800: #3b0071;
  --indigo-900: #220040;
  --purple-25: #fbf7ff;
  --purple-50: #f8f0ff;
  --purple-100: #f4e8ff;
  --purple-200: #e4c4ff;
  --purple-300: #d49aff;
  --purple-400: #c36aff;
  --purple-500: #a219e6;
  --purple-600: #9000c4;
  --purple-700: #7c009f;
  --purple-800: #600073;
  --purple-900: #3d0043;
  --magenta-25: #fff8fb;
  --magenta-50: #fff2f6;
  --magenta-100: #ffebf2;
  --magenta-200: #ffcddf;
  --magenta-300: #ffa8cb;
  --magenta-400: #ff7fb7;
  --magenta-500: #eb4799;
  --magenta-600: #da3689;
  --magenta-700: #c82179;
  --magenta-800: #b00065;
  --magenta-900: #8a004c;
}
@media (prefers-color-scheme: dark) {
  :host {
    --semantic-blue: var(--blue-700);
    --semantic-red: var(--red-400);
    --semantic-orange: var(--orange-400);
    --semantic-green: var(--green-700);
    --semantic-bg-blue: var(--blue-25);
    --semantic-bg-red: var(--red-25);
    --semantic-bg-orange: var(--orange-25);
    --semantic-bg-green: var(--green-25);
    --neutral-100: #121212;
    --neutral-200: #424242;
    --neutral-300: #616161;
    --neutral-400: #757575;
    --neutral-500: #9e9e9e;
    --neutral-600: #bdbdbd;
    --neutral-700: #e0e0e0;
    --neutral-800: #eeeeee;
    --neutral-900: #f5f5f5;
  }
}
:host([theme='dark']) {
  --semantic-blue: var(--blue-700);
  --semantic-red: var(--red-400);
  --semantic-orange: var(--orange-400);
  --semantic-green: var(--green-700);
  --semantic-bg-blue: var(--blue-25);
  --semantic-bg-red: var(--red-25);
  --semantic-bg-orange: var(--orange-25);
  --semantic-bg-green: var(--green-25);
  --neutral-100: #121212;
  --neutral-200: #424242;
  --neutral-300: #616161;
  --neutral-400: #757575;
  --neutral-500: #9e9e9e;
  --neutral-600: #bdbdbd;
  --neutral-700: #e0e0e0;
  --neutral-800: #eeeeee;
  --neutral-900: #f5f5f5;
}
/* @media (prefers-color-scheme: dark) {
  :host {
      --label-color: #fff;
      --active-label-color: #000;
      --menu-bg: #525252;
      --active-bg: #5898ff;
      --active-bg-dimmed: #5c5c5c;
  }
} */
:host {
  --ui-font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont,
    'Segoe UI', Helvetica, Arial, sans-serif, 'Apple Color Emoji',
    'Segoe UI Emoji', 'Segoe UI Symbol';
  --ui-font-size: 14px;
  --ui-line-height: 1.5;
  --ui-letter-spacing: 0.007em;
  --mono-font-family: 'Berkeley Mono', 'JetBrains Mono', 'IBM Plex Mono',
    'Source Code Pro', Menlo, Monaco, 'Courier New', monospace;
  --ui-layer-1: var(--neutral-100);
  --ui-layer-2: var(--neutral-200);
  --ui-layer-3: var(--neutral-300);
  --ui-layer-4: var(--neutral-400);
  --ui-layer-5: var(--neutral-500);
  --ui-layer-6: var(--neutral-600);
  --ui-border-color: var(--primary-color);
  --ui-border-radius: 4px;
  --ui-text: var(--neutral-900);
  --ui-text-secondary: var(--neutral-700);
  --ui-text-placeholder: var(--neutral-500);
  --ui-text-muted: var(--neutral-300);
  /** A field is a UI element in which a user can type data, for
  * example an input or textarea element.
  */
  --ui-field-bg: var(--neutral-100);
  --ui-field-bg-hover: var(--neutral-100);
  --ui-field-bg-disabled: var(--neutral-300);
  --ui-field-bg-invalid: var(--red-100);
  --ui-field-bg-focus: var(--neutral-100);
  --ui-field-border: 0.5px solid var(--border-color);
  --ui-field-border-hover: 0.5px solid var(--border-color);
  --ui-field-border-disabled: 0.5px solid var(--border-color);
  --ui-field-border-invalid: 0.5px solid var(--border-color);
  --ui-field-border-focus: 0.5px solid var(--border-color);
  --ui-menu-bg: var(--neutral-100);
  --ui-menu-text: var(--neutral-900);
  --ui-menu-bg-hover: var(--neutral-200);
  --ui-menu-text-hover: var(--neutral-900);
  /** The \`active\` state is used for the state of menu items
  * when they are selected.
  */
  --ui-menu-bg-active: var(--primary-color);
  --ui-menu-text-active: var(--primary-color-reverse);
  /** The \`active-muted\` set is used for the state of
  * submenus when they are open.
  */
  --ui-menu-bg-active-muted: var(--neutral-300);
  --ui-menu-text-active-muted: var(--neutral-900);
  /* --ui-menu-shadow: 0 1px 2px 0 rgba(60, 64, 67, 0.302),
0 2px 6px 2px rgba(60, 64, 67, 0.149); */
  --ui-menu-shadow: 0 0 2px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 0, 0, 0.2);
  --ui-menu-divider: 0.5px solid #c7c7c7;
  /* var(--neutral-300); */
  --ui-menu-z-index: 10000;
  --page-bg: var(--neutral-100);
  --content-bg: var(--neutral-200);
}
@media (prefers-color-scheme: dark) {
  :host {
    --ui-menu-bg: var(--neutral-200);
  }
}
:host([theme='dark']) {
  --ui-menu-bg: var(--neutral-200);
}
/* PingFang SC is a macOS font. Microsoft Yahei is a Windows font. 
  Noto  is a Linux/Android font.
*/
:lang(zh-cn),
:lang(zh-sg),
:lang(zh-my),
:lang(zh) {
  --ui-font-family: -apple-system, system-ui, 'PingFang SC', 'Hiragino Sans GB',
    'Noto Sans CJK SC', 'Noto Sans SC', 'Noto Sans', 'Microsoft Yahei UI',
    'Microsoft YaHei New', 'Microsoft Yahei', '\u5FAE\u8F6F\u96C5\u9ED1', SimSun, '\u5B8B\u4F53',
    STXihei, '\u534E\u6587\u7EC6\u9ED1', sans-serif;
}
:lang(zh-tw),
:lang(zh-hk),
:lang(zh-mo) {
  --ui-font-family: -apple-system, system-ui, 'Noto Sans',
    'Microsoft JhengHei UI', 'Microsoft JhengHei', '\u5FAE\u8EDF\u6B63\u9ED1\u9AD4', '\u65B0\u7D30\u660E\u9AD4',
    'PMingLiU', '\u7D30\u660E\u9AD4', 'MingLiU', sans-serif;
}
:lang(ja),
:lang(ja-jp),
:lang(ja-jp-mac) {
  --ui-font-family: -apple-system, system-ui, 'Hiragino Sans',
    'Hiragino Kaku Gothic ProN', 'Noto Sans CJK JP', 'Noto Sans JP', 'Noto Sans',
    '\u6E38\u30B4\u30B7\u30C3\u30AF', '\u6E38\u30B4\u30B7\u30C3\u30AF\u4F53', YuGothic, 'Yu Gothic', '\u30E1\u30A4\u30EA\u30AA', Meiryo,
    '\uFF2D\uFF33 \uFF30\u30B4\u30B7\u30C3\u30AF', 'MS PGothic', sans-serif;
}
:lang(ko),
:lang(ko-kr),
:lang(ko-kr-std) {
  --ui-font-family: -apple-system, system-ui, 'Noto Sans CJK KR', 'Noto Sans KR',
    'Noto Sans', 'Malgun Gothic', '\uB9D1\uC740 \uACE0\uB515', 'Apple SD Gothic Neo',
    '\uC560\uD50C SD \uC0B0\uB3CC\uACE0\uB515 Neo', 'Apple SD \uC0B0\uB3CC\uACE0\uB515 Neo', '\uB3CB\uC6C0', Dotum, sans-serif;
}
:lang(ko-kr-apple) {
  --ui-font-family: -apple-system, system-ui, 'Noto Sans CJK KR', 'Noto Sans KR',
    'Noto Sans', 'Apple SD Gothic Neo', '\uC560\uD50C SD \uC0B0\uB3CC\uACE0\uB515 Neo',
    'Apple SD \uC0B0\uB3CC\uACE0\uB515 Neo', '\uB3CB\uC6C0', Dotum, sans-serif;
}
:lang(zh-cn),
:lang(zh-sg),
:lang(zh-my),
:lang(zh),
:lang(zh-tw),
:lang(zh-hk),
:lang(zh-mo),
:lang(ja),
:lang(ja-jp),
:lang(ja-jp-mac),
:lang(ko),
:lang(ko-kr),
:lang(ko-kr-std),
:lang(ko-kr-apple) {
  --ui-font-size: 1rem;
  --ui-line-height: 1.7;
  --ui-letter-spacing: 0;
}
:dir(rtl) {
  --ui-line-height: auto;
  --ui-letter-spacing: 0;
}
`,O0=`.ui-menu *,
.ui-menu ::before,
.ui-menu ::after {
  box-sizing: border-box;
}
.ui-menu {
  display: none;
  color-scheme: light dark;
  -webkit-user-select: none;
  /* Important: Safari iOS doesn't respect user-select */
  user-select: none;
  cursor: default;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: rgba(0 0 0 0);
  --active-label-color: #fff;
  /* ui-menu-text-active */
  --label-color: #121212;
  /* ui-menu-text */
  --menu-bg: #e2e2e2;
  /* ui-menu-background */
  --active-bg: #5898ff;
  /* ui-menu-background-active */
  --active-bg-dimmed: #c5c5c5;
  /* ui-menu-background-active-muted */
}
/** Use the :where pseudo selector to make the specificity of the
 * selector 0, so that it can be overridden by the user.
 */
:where(.ui-menu-container) {
  position: absolute;
  overflow: visible;
  width: auto;
  height: auto;
  z-index: 10000;
  border-radius: 8px;
  background: var(--ui-menu-bg);
  box-shadow: var(--ui-menu-shadow);
  list-style: none;
  padding: 6px 0 6px 0;
  margin: 0;
  user-select: none;
  cursor: default;
  color: var(--ui-menu-text);
  font-weight: normal;
  font-style: normal;
  text-shadow: none;
  text-transform: none;
  letter-spacing: 0;
  outline: none;
  opacity: 1;
  /* The [popover] elements have a 1px solid black border. Ugh. */
  border: none;
  width: fit-content;
  height: fit-content;
}
:where(.ui-menu-container > li) {
  display: flex;
  flex-flow: row;
  align-items: center;
  padding: 1px 7px 1px 7px;
  margin-top: 0;
  margin-left: 6px;
  margin-right: 6px;
  border-radius: 4px;
  white-space: nowrap;
  position: relative;
  outline: none;
  fill: currentColor;
  user-select: none;
  cursor: default;
  text-align: left;
  color: inherit;
  font-family: var(--ui-font-family);
  font-size: var(--ui-font-size);
  line-height: var(--ui-line-height);
  letter-spacing: var(--ui-letter-spacing);
}
:where(.ui-menu-container > li > .label) {
  appearance: none;
  background: none;
  outline: none;
  width: 100%;
  margin: 0;
  padding: 1px 2px 1px 1px;
  overflow: visible;
  border: 1px solid transparent;
  white-space: nowrap;
  text-align: start;
}
:where(.ui-menu-container > li:has(.heading)) {
  margin-top: 0.5em;
}
:where(.ui-menu-container > li > .label.heading) {
  font-weight: bold;
  opacity: 0.4;
}
:where(.ui-menu-container > li.indent > .label) {
  margin-inline-start: 12px;
}
:where(.ui-menu-container > li > .label.indent) {
  margin-inline-start: 12px;
}
:where(.ui-menu-container > li[role='divider']) {
  border-bottom: 1px solid var(--ui-menu-divider);
  border-radius: 0;
  padding: 0;
  margin-left: 15px;
  margin-right: 15px;
  padding-top: 5px;
  margin-bottom: 5px;
  width: calc(100% - 30px);
  /** 100% - (margin-left + margin-right) */
}
:where(.ui-menu-container > li[aria-disabled='true']) {
  opacity: 0.5;
}
:where(.ui-menu-container > li.active) {
  background: var(--ui-menu-bg-active);
  background: -apple-system-control-accent;
  color: var(--ui-menu-text-active);
}
:where(.ui-menu-container > li.active.is-submenu-open) {
  background: var(--ui-menu-bg-active-muted);
  color: inherit;
}
:where(.ui-menu-container > li[aria-haspopup='true'] > .label) {
  padding-inline-end: 0;
}
:where(.ui-menu-container > li[aria-haspopup='true'].active::after) {
  color: var(--ui-menu-text-active);
}
/** Keyboard shortcut */
:where(.ui-menu-container > li > kbd) {
  font-family: var(--ui-font-family);
  margin-inline-start: 12px;
  opacity: 0.4;
}
:where(.ui-menu-container > li.active > kbd) {
  opacity: 0.85;
}
.ui-trailing-chevron {
  display: flex;
  margin-inline-start: 24px;
  width: 10px;
  height: 10px;
  margin-bottom: 4px;
}
.ui-trailing-chevron:dir(rtl) {
  transform: scaleX(-1);
}
.ui-checkmark {
  display: flex;
  margin-inline-end: -11px;
  margin-inline-start: -4px;
  margin-top: 2px;
  width: 16px;
  height: 16px;
}
.ui-mixedmark {
  display: flex;
  margin-inline-end: -11px;
  margin-inline-start: -4px;
  margin-top: 2px;
  width: 16px;
  height: 16px;
}
`,Eo;function es(e){let t="";switch(e){case"mathfield-element":t=`
    :host { display: inline-block; background-color: field; color: fieldtext; border-width: 1px; border-style: solid; border-color: #acacac; border-radius: 2px; padding:4px;}
    :host([hidden]) { display: none; }
    :host([disabled]), :host([disabled]:focus), :host([disabled]:focus-within) { outline: none; opacity:  .5; }
    :host(:focus), :host(:focus-within) {
      outline: Highlight auto 1px;    /* For Firefox */
      outline: -webkit-focus-ring-color auto 1px;
    }
    :host([readonly]:focus), :host([readonly]:focus-within),
    :host([read-only]:focus), :host([read-only]:focus-within) {
      outline: none;
    }
    @media (hover: none) and (pointer: coarse) {
      :host(:not(:focus)) :first-child { pointer-events: none !important; }
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s=e[a];s.type==="middle"?(e[a]=t.bind(r,ys("inner",s.value,n,i,r,{isSelected:t.isSelected})),e[a].caret=s.caret,e[a].isSelected=s.isSelected,e[a].cssId=s.cssId,e[a].htmlData=s.htmlData,e[a].htmlStyle=s.htmlStyle,e[a].attributes=s.attributes,e[a].cssProperties=s.cssProperties):s.children&&o(s.children,t,r,n,i)}}var l=class uh extends we{constructor(t,r){var n;super({type:"macro",command:t,style:r.style}),this.body=r.body,r.captureSelection===void 0?r.args?this.captureSelection=!1:this.captureSelection=!0:this.captureSelection=r.captureSelection,this.macroArgs=r.args,this.expand=(n=r.expand)!=null?n:!1}static fromJson(t){return new uh(t.command,t)}toJson(){const t=super.toJson();return this.expand&&(t.expand=!0),this.captureSelection!==void 0&&(t.captureSelection=this.captureSelection),this.macroArgs&&(t.args=this.macroArgs),t}_serialize(t){var r;return t.expandMacro&&this.expand?this.bodyToLatex(t):this.command+((r=this.macroArgs)!=null?r:"")}render(t){const r=we.createBox(t,this.body);return r?(this.caret&&(r.caret=this.caret),this.bind(t,r)):null}},c=class dh extends we{constructor(){super({type:"macro-argument"})}static fromJson(t){return new dh}toJson(){return super.toJson()}_serialize(t){return""}render(t){return null}},f=class fh extends we{constructor(t,r,n=!1,i,a){var s;super({type:"prompt",mode:(s=a==null?void 0:a.mode)!=null?s:"math",style:a==null?void 0:a.style,command:"\\placeholder"}),this.body=i,this.correctness=r,this.placeholderId=t,this.locked=n,this.captureSelection=this.locked}static fromJson(t){return new fh(t.placeholderId,t.correctness,t.locked,t.body,t)}toJson(){const t=super.toJson();return this.placeholderId&&(t.placeholderId=this.placeholderId),this.body||delete t.body,this.body&&(t.body=this.body.filter(r=>r.type!=="first").map(r=>r.toJson())),this.correctness&&(t.correctness=this.correctness),t.locked=this.locked,t}render(t){const r=new Er({parent:t}),n=r.getRegisterAsEm("fboxsep"),i=n,a=n,s=we.createBox(t,this.body);if(!s)return null;s.height||(s.height=r.metrics.xHeight),s.setStyle("vertical-align",-s.height,"em"),this.correctness==="correct"?s.setStyle("color","var(--correct-color, var(--ML__correct-color))"):this.correctness==="incorrect"&&s.setStyle("color","var(--incorrect-color, var(--ML__incorrect-color))");const u=new je(s,{type:"ord"});u.setStyle("display","inline-block"),u.setStyle("height",s.height+s.depth,"em"),u.setStyle("vertical-align",-a,"em");let d="ML__prompt ";this.locked?d+=" ML__lockedPromptBox ":d+=" ML__editablePromptBox ",this.correctness==="correct"?d+=" ML__correctPromptBox ":this.correctness==="incorrect"&&(d+=" ML__incorrectPromptBox "),this.containsCaret&&(d+=" ML__focusedPromptBox ");const p=new je(null,{classes:d,attributes:{part:"prompt"}});p.height=u.height+a,p.depth=u.depth+a,p.width=u.width+2*i,p.setStyle("box-sizing","border-box"),p.setStyle("position","absolute"),p.setStyle("height",u.height+u.depth+2*a,"em"),i===0&&p.setStyle("width","100%"),i!==0&&(p.setStyle("width",`calc(100% + ${2*i}em)`),p.setStyle("top",n,"em"),p.setStyle("left",-i,"em")),(!this.body||this.body.length===1)&&(p.width=3*i,p.setStyle("width",`calc(100% + ${3*i}em)`),p.setStyle("left",-1.5*i,"em"));let h="";this.correctness==="incorrect"&&(h+='<line x1="3%"  y1="97%" x2="97%" y2="3%" stroke-width="0.5" stroke="var(--incorrect-color, var(--ML__incorrect-color))" stroke-linecap="round" />'),h&&(p.svgOverlay=h);const S=new je([p,u],{classes:"ML__prompt-atom"});return 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Er({parent:t,isPhantom:!0}),i=this.leftSibling,a=(r=i.render(n))!=null?r:new je(null),s=new je(null);return s.height=a.height,s.depth=a.depth,this.attachSupsub(t,{base:s,isCharacterBox:i.isCharacterBox(),type:"ignore"})}_serialize(t){return this.supsubToLatex(t)}};function g(e){return e?!/^(<$$>|<$>|<space>|<{>|<}>|#[0-9\?]|\\.+)$/.test(e):!1}var y=class{constructor(e,t,r){this.errors=[],this.index=0,this.endCount=0;var n,i,a,s;r!=null||(r={}),this.tokens=e,this.context=t instanceof Er&&!(r!=null&&r.parseMode)&&!r.mathstyle?t:new Er({from:t,mathstyle:r.mathstyle},r.style),this.args=(n=r.args)!=null?n:void 0,this.smartFence=this.context.smartFence,this.parsingContext={parent:void 0,mathlist:[],style:(i=r.style)!=null?i:{},parseMode:(a=r.parseMode)!=null?a:"math",mathstyle:(s=r.mathstyle)!=null?s:"displaystyle",tabular:!1}}beginContext(e){var t,r,n;const i=this.parsingContext,a={parent:i,mathlist:[],style:_({},i.style),parseMode:(t=e==null?void 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u=null;this.skipWhitespace(),this.match("[")&&(u=this.scanDimen(),this.skipWhitespace(),this.match("]")),i.push(u!=null?u:{dimension:0}),n.push(a),a=[]}else this.mathlist.push(...this.scan(u=>["<}>","&","\\end","\\cr","\\\\","\\tabularnewline"].includes(u)));while(!s);return a.push(this.mathlist),a.length>0&&n.push(a),this.endContext(),t.createAtom(e,n,i,r)}scanExpression(){const e=this.mathlist;if(this.mathlist=[],this.parseExpression()){const t=this.mathlist;return this.mathlist=e,t}return this.mathlist=e,null}scan(e){this.beginContext(),e||(e=s=>s==="<}>");let t="",r=null,n=[],i=null;for(;!this.end()&&!e(this.peek());)this.hasInfixCommand()&&!t?(t=this.get(),r=or(t,"math"),r&&(n=this.scanArguments(r)[1]),i=this.mathlist,this.mathlist=[]):this.parseExpression();let a;return t?(console.assert(!!r),n.unshift(this.mathlist),i&&n.unshift(i),a=[r.createAtom({command:t,args:n,style:this.style,mode:this.parseMode})]):a=this.mathlist,this.endContext(),a}scanGroup(){const e=this.index;if(!this.match("<{>"))return null;const t=this.scan(n=>n==="<}>");this.match("<}>")||this.onError({code:"unbalanced-braces"});const r=new Ad(t,this.parseMode,this.style);return r.verbatimLatex=Go(this.tokens.slice(e,this.index)),r}scanSmartFence(){if(this.skipWhitespace(),!this.match("("))return null;this.beginContext();let e=1;for(;!this.end()&&e!==0;)this.match("(")&&(e+=1),this.match(")")&&(e-=1),e!==0&&this.parseExpression();const t=new Cn("",this.mathlist,{leftDelim:"(",rightDelim:e===0?")":"?"});return this.endContext(),t}scanDelim(){this.skipWhitespace();const e=this.peek();if(!e)return this.onError({code:"unexpected-end-of-string"}),null;if(!g(e)&&!e.startsWith("\\"))return null;this.next();const t=or(e,"math");return t?t.definitionType==="function"&&t.ifMode&&!t.ifMode.includes(this.parseMode)?(this.onError({code:"unexpected-delimiter",arg:e}),null):t.definitionType==="symbol"&&(t.type==="mopen"||t.type==="mclose")||/^(\.|\?|\||<|>|\\vert|\\Vert|\\\||\\surd|\\uparrow|\\downarrow|\\Uparrow|\\Downarrow|\\updownarrow|\\Updownarrow|\\mid|\\mvert|\\mVert)$/.test(e)?e:(this.onError({code:"unexpected-delimiter",arg:e}),null):(this.onError({code:"unknown-command",arg:e}),null)}scanLeftRight(){var e;if(this.match("\\right"))return this.onError({code:"unbalanced-braces"}),new ts("\\right");if(this.match("\\mright"))return this.onError({code:"unbalanced-braces"}),new ts("\\mright");let t="\\right";if(!this.match("\\left")){if(!this.match("\\mleft"))return null;t="\\mright"}const r=this.scanDelim();if(!r)return this.onError({code:"unexpected-delimiter"}),new ts(t==="\\right"?"\\left":"\\mleft");for(this.beginContext();!this.end()&&!this.match(t);)this.parseExpression();const 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e.currentLayer=e.latentLayer,t}function Bm(e,t,r){const n=[];if(!("layers"in t))return"";for(const i of t.layers)n.push(`<div tabindex="-1" class="MLK__layer" id="${i.id}">`),(e.normalizedLayouts.length>1||t.displayEditToolbar)&&(n.push("<div class='MLK__toolbar' role='toolbar'>"),n.push(Mm(e,r)),t.displayEditToolbar&&n.push('<div class="ML__edit-toolbar right"></div>'),n.push("</div>")),n.push(Tm(e,i)),n.push("</div>");return n.join("")}function Tm(e,t){if(typeof t=="string")return t;let r="";if(typeof t.style=="string"?r+=`<style>${t.style}</style>`:typeof t.style=="object"&&(r+=`<style>${Sm(t.style)}</style>`),t.backdrop&&(r+=`<div class='${t.backdrop}'>`),t.container&&(r+=`<div class='${t.container}'>`),t.rows){r+="<div class=MLK__rows>";for(const n of t.rows){r+="<div dir='ltr' class=MLK__row>";for(const i of n)if(i){const a=e.registerKeycap(i),[s,u]=Wd(i);/(^|\s)separator/.test(u)?r+=`<div class="${u}"`:r+=`<div tabindex="-1" id="${a}" class="${u}"`,i.tooltip&&(r+=` data-tooltip="${i.tooltip}"`),r+=`>${s}</div>`}r+="</div>"}r+="</div>"}else t.markup&&(r+=t.markup);return t.container&&(r+="</div>"),t.backdrop&&(r+="</div>"),r}function Wd(e,t={shifted:!1}){var r,n,i,a,s,u,d;let p="",h=(r=e.class)!=null?r:"";if(t.shifted&&ac(e)&&(h+=" is-active"),t.shifted&&"shift"in e)typeof e.shift=="string"?p=ou(e.shift):typeof e.shift=="object"&&(p=e.shift.label?e.shift.label:(n=ou(e.shift.latex||e.shift.insert||"")||e.shift.key)!=null?n:""),typeof e.shift=="object"&&(h=(a=(i=e.shift.class)!=null?i:e.class)!=null?a:"");else{if(p=e.label?e.label:(s=ou(e.latex||e.insert||"")||e.key)!=null?s:"",e.shift){let S;typeof e.shift=="string"?S=ou(e.shift):e.shift.label?S=e.shift.label:S=(u=ou(e.shift.latex||e.shift.insert||"")||e.shift.key)!=null?u:"",p+=`<span class="MLK__shift">${S}</span>`}e.aside&&(p+=`<aside>${e.aside}</aside>`)}return e.layer&&!/layer-switch/.test(h)&&(h+=" layer-switch"),/(^|\s)(separator|action|shift|fnbutton|bigfnbutton)($|\s)/.test(h)||(h+=" MLK__keycap"),!/\bw[0-9]+\b/.test(h)&&e.width&&(h+=(d={0:" w0",.5:" w5",1.5:" w15",2:" w20",5:" w50"}[e.width])!=null?d:""),[p,h||"MLK__keycap"]}var qs={"[left]":{class:"action hide-shift",label:"<svg class=svg-glyph><use xlink:href=#svg-arrow-left /></svg>",command:["performWithFeedback","moveToPreviousChar"],shift:{label:"<svg class=svg-glyph><use xlink:href=#svg-angle-double-left /></svg>",command:["performWithFeedback","extendSelectionBackward"]}},"[right]":{class:"action hide-shift",label:"<svg class=svg-glyph><use xlink:href=#svg-arrow-right /></svg>",command:["performWithFeedback","moveToNextChar"],shift:{label:"<svg class=svg-glyph><use xlink:href=#svg-angle-double-right /></svg>",command:["performWithFeedback","extendSelectionForward"]}},"[up]":{class:"action hide-shift",label:"\u2191",command:["performWithFeedback","moveUp"],shift:{label:"\u219F",command:["performWithFeedback","extendSelectionUpward"]}},"[down]":{class:"action 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e&&e.key&&qs[e.key]&&(r=v(_(_({},qs[e.key]),e),{key:qs[e.key].key})),r?(r.command==="insertDecimalSeparator"&&(r.label=(t=window.MathfieldElement.decimalSeparator)!=null?t:"."),e.label==="[action]"&&(r=_(_({},r),window.mathVirtualKeyboard.actionKeycap)),e.label==="[shift]"&&(r=_(_({},r),window.mathVirtualKeyboard.shiftKeycap)),e.label==="[backspace]"&&(r=_(_({},r),window.mathVirtualKeyboard.backspaceKeycap)),e.label==="[tab]"&&(r=_(_({},r),window.mathVirtualKeyboard.tabKeycap)),r):e}var lu;function $m(e){var t;if(e.button!==0)return;const r=Ss.singleton;if(!r)return;let n=e.target;for(;n&&!n.getAttribute("data-layer");)n=n.parentElement;if(n){r.currentLayer=(t=n.getAttribute("data-layer"))!=null?t:"",e.preventDefault();return}const i=ic(e.target);if(!(i!=null&&i.id))return;const a=r.getKeycap(i.id);if(!a)return;console.assert(e.type==="pointerdown");const s=new AbortController,u=s.signal;i.classList.add("is-pressed"),i.addEventListener("pointerenter",Vd(s),{capture:!0,signal:u}),i.addEventListener("pointerleave",Vd(s),{capture:!0,signal:u}),i.addEventListener("pointercancel",Vd(s),{signal:u}),i.addEventListener("pointerup",Vd(s),{signal:u}),ac(a)&&(i.classList.add("is-active"),r.shiftPressCount++),a.variants&&(lu&&clearTimeout(lu),lu=setTimeout(()=>{i.classList.contains("is-pressed")&&(i.classList.remove("is-pressed"),i.classList.add("is-active"),e.target&&"releasePointerCapture"in e.target&&e.target.releasePointerCapture(e.pointerId),Qf(i,()=>{s.abort(),i==null||i.classList.remove("is-active")}))},300)),e.preventDefault()}function Vd(e){return t=>{const r=ic(t.target);if(!(r!=null&&r.id))return;const n=Ss.singleton;if(!n)return;const i=n.getKeycap(r.id);if(i){if(t.type==="pointerenter"&&t.target===r&&t.isPrimary&&r.classList.add("is-pressed"),t.type==="pointercancel"){r.classList.remove("is-pressed"),ac(i)&&(n.shiftPressCount--,r.classList.toggle("is-active",n.isShifted)),e.abort();return}if(t.type==="pointerleave"&&t.target===r){r.classList.remove("is-pressed"),ac(i)&&(n.shiftPressCount--,r.classList.toggle("is-active",n.isShifted));return}if(t.type==="pointerup"){lu&&clearTimeout(lu),ac(i)?r.classList.toggle("is-active",n.isShifted):r.classList.contains("is-pressed")&&(r.classList.remove("is-pressed"),n.isShifted&&i.shift?typeof i.shift=="string"?n.executeCommand(["insert",i.shift,{focus:!0,feedback:!0,scrollIntoView:!0,mode:"math",format:"latex"}]):cf(i.shift):cf(i),n.shiftPressCount===1&&!t.shiftKey&&(n.shiftPressCount=0)),e.abort(),t.preventDefault();return}}}}function cf(e){var t;let r=e.command;!r&&e.insert&&(r=["insert",e.insert,{focus:!0,feedback:!0,scrollIntoView:!0,mode:"math",format:"latex"}]),!r&&e.key&&(r=["typedText",e.key,{focus:!0,feedback:!0,simulateKeystroke:!0}]),!r&&e.latex&&(r=["insert",e.latex,{focus:!0,feedback:!0,scrollIntoView:!0,mode:"math",format:"latex"}]),r||(r=["typedText",e.label,{focus:!0,feedback:!0,simulateKeystroke:!0}]),(t=Ss.singleton)==null||t.executeCommand(r)}function Pm(e){if(e.nodeType!==1)return!1;const t=e.classList;return t.contains("MLK__keycap")||t.contains("shift")||t.contains("action")||t.contains("fnbutton")||t.contains("bigfnbutton")}function ic(e){if(!e)return;let t=e;for(;t&&!Pm(t);)t=t.parentElement;return t!=null?t:void 0}function ac(e){return!!e.class&&/(^|\s)shift($|\s)/.test(e.class)}var Ss=class Lh{constructor(){this.originalContainerBottomPadding=null,this.keycapRegistry={},this._shiftPressCount=0;var 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0:t.querySelector(".MLK__layer.is-visible"))==null?void 0:r.id)!=null?n:""}set currentLayer(t){var r;if(!this._element){this.latentLayer=t;return}let n=t?this._element.querySelector(`#${t}.MLK__layer`):null;n||(n=this._element.querySelector(".MLK__layer")),n&&((r=this._element.querySelector(".MLK__layer.is-visible"))==null||r.classList.remove("is-visible"),n.classList.add("is-visible")),this.render()}get shiftPressCount(){return this._shiftPressCount}set shiftPressCount(t){var r;this._shiftPressCount=t>2||t<0?0:t,(r=this._element)==null||r.classList.toggle("is-caps-lock",this.shiftPressCount===2),this.render()}get isShifted(){return this._shiftPressCount>0}resetKeycapRegistry(){this.keycapRegistry={}}registerKeycap(t){const r="ML__k"+Date.now().toString(36).slice(-2)+Math.floor(Math.random()*1e5).toString(36);return this.keycapRegistry[r]=t,r}getKeycap(t){return t?this.keycapRegistry[t]:void 0}getLayer(t){const r=this.normalizedLayouts;for(const n of r)for(const i of 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this._normalizedLayouts||this.updateNormalizedLayouts(this._layouts),this._normalizedLayouts}get editToolbar(){return this._editToolbar}set editToolbar(t){this._editToolbar=t,this.rebuild()}get container(){return this._container}set container(t){this._container=t,this.rebuild()}static get singleton(){if(this._singleton===void 0)try{this._singleton=new Lh}catch(t){this._singleton=null}return this._singleton}get style(){return this._style}addEventListener(t,r,n){this.listeners[t]||(this.listeners[t]=new Set),this.listeners[t].has(r)||this.listeners[t].add(r)}dispatchEvent(t){return!this.listeners[t.type]||this.listeners[t.type].size===0?!0:(this.listeners[t.type].forEach(r=>{typeof r=="function"?r(t):r==null||r.handleEvent(t)}),!t.defaultPrevented)}removeEventListener(t,r,n){this.listeners[t]&&this.listeners[t].delete(r)}get element(){return this._element}set element(t){var r;this._element!==t&&((r=this._element)==null||r.remove(),this._element=t)}get visible(){return this._visible}set visible(t){t?this.show():this.hide()}get boundingRect(){var t;if(!this._visible)return new DOMRect;const r=(t=this._element)==null?void 0:t.getElementsByClassName("MLK__plate")[0];return r?r.getBoundingClientRect():new DOMRect}adjustBoundingRect(){var t,r;const n=this.boundingRect.height;if(this.container===document.body){(t=this._element)==null||t.style.setProperty("--_keyboard-height",`calc(${n}px + var(--_padding-top) + var(--_padding-bottom) + env(safe-area-inset-bottom, 0))`);const i=n-1;this.container.style.paddingBottom=this.originalContainerBottomPadding?`calc(${this.originalContainerBottomPadding} + ${i}px)`:`${i}px`}else(r=this._element)==null||r.style.setProperty("--_keyboard-height",`${n}px`)}rebuild(){if(this._rebuilding||!this._element)return;this._rebuilding=!0;const t=this.currentLayer;requestAnimationFrame(()=>{this._rebuilding=!1,this._element&&(this._element.remove(),this._element=void 0),this.visible&&(this.buildAndAttachElement(),this.currentLayer=t,this.render(),this.adjustBoundingRect(),this._element.classList.add("is-visible"))})}render(){if(!this._element)return;const t=this.getLayer(this.currentLayer);this._element.classList.toggle("backdrop-is-transparent",!!(t&&(t.backdrop||t.container)));const r=this._element.querySelectorAll(".MLK__layer.is-visible .MLK__keycap, .MLK__layer.is-visible .action, .fnbutton, .MLK__layer.is-visible .bigfnbutton, .MLK__layer.is-visible .shift");if(r)for(const n of r){const i=this.getKeycap(n.id);if(i){const[a,s]=Wd(i,{shifted:this.isShifted});n.innerHTML=window.MathfieldElement.createHTML(a),n.className=s}}}show(t){var r;if(this._visible)return;const n=this.container;if(n&&window.mathVirtualKeyboard&&this.stateWillChange(!0)){if(this._element||(this.buildAndAttachElement(),this.adjustBoundingRect()),!this._visible){const i=this._element.getElementsByClassName("MLK__plate")[0];if(i&&this.observer.observe(i),n===window.document.body){const a=n.style.paddingBottom;this.originalContainerBottomPadding=a;const s=i.offsetHeight-1;n.style.paddingBottom=a?`calc(${a} + ${s}px)`:`${s}px`}window.addEventListener("mouseup",this),window.addEventListener("blur",this),window.addEventListener("keydown",this,{capture:!0}),window.addEventListener("keyup",this,{capture:!0}),(r=this._element)==null||r.classList.toggle("is-caps-lock",this.shiftPressCount===2),this.currentLayer=this.latentLayer}this._visible=!0,t!=null&&t.animate?requestAnimationFrame(()=>{this._element&&(this._element.classList.add("animate"),this._element.addEventListener("transitionend",()=>{var i;return(i=this._element)==null?void 0:i.classList.remove("animate")},{once:!0}),this._element.classList.add("is-visible"),this.stateChanged())}):(this._element.classList.add("is-visible"),this.stateChanged())}}hide(t){var r;const 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oc(e,t,r){var n,i,a,s,u,d,p;const h=e.position;(n=r==null?void 0:r.extend)!=null&&n||e.collapseSelection(t);let S=e.at(e.position);if(t==="forward"&&(S.type==="subsup"?(S=S.rightSibling,S||(S=e.at(e.position+1))):S=e.at(e.position+1)),!S)return e.announce("plonk"),!1;let D=e.offsetOf(S);if(S instanceof zs)D=ff(e,D,t);else if(S instanceof Ft)if(S.isSuggestion)for(console.assert(t==="forward");S&&S instanceof Ft;)S.isSuggestion=!1,D=e.offsetOf(S),S=S.rightSibling;else if(t==="forward"){if(S=S.rightSibling,!S||!(S instanceof Ft))return e.announce("plonk"),!1;for(;S&&S instanceof Ft&&/[a-zA-Z\*]/.test(S.value);)D=e.offsetOf(S),S=S.rightSibling}else{if(S=S.leftSibling,!S||!(S instanceof Ft))return e.announce("plonk"),!1;for(;S&&S instanceof Ft&&/[a-zA-Z\*]/.test(S.value);)D=e.offsetOf(S),S=S.leftSibling}else if(t==="forward"&&S.type==="mopen"){let P=0;do S.type==="mopen"?P+=1:S.type==="mclose"&&(P-=1),S=S.rightSibling;while(!S.isLastSibling&&P!==0);D=e.offsetOf(S.leftSibling)}else if(t==="backward"&&S.type==="mclose"){let P=0;do S.type==="mopen"?P+=1:S.type==="mclose"&&(P-=1),S=S.leftSibling;while(!S.isFirstSibling&&P!==0);D=e.offsetOf(S)}else if(t==="backward")if(S.type==="first")for(;D>0&&S.type==="first";)D-=1,S=e.at(D);else{const P=S.type;S.type==="subsup"&&(D=e.offsetOf(e.at(D).leftSibling)),D-=1;let O=(i=e.at(D))==null?void 0:i.type;for(;D>=0&&O===P;)((a=e.at(D))==null?void 0:a.type)==="subsup"?D=e.offsetOf(e.at(D).leftSibling):D-=1,O=e.at(D).type}else{const{type:P}=S;let O=(s=e.at(D))==null?void 0:s.type;const{lastOffset:de}=e;for(;D<=de&&(O===P||O==="subsup");){for(;((u=e.at(D).rightSibling)==null?void 0:u.type)==="subsup";)D=e.offsetOf(e.at(D).rightSibling);D+=1,O=(d=e.at(D))==null?void 0:d.type}D-=1}if((p=r==null?void 0:r.extend)!=null&&p){if(!e.setSelection(e.anchor,D))return e.announce("plonk"),!1}else{if(D===e.position)return e.announce("plonk"),!1;e.position=D}return e.announce("move",h),e.mathfield.stopCoalescingUndo(),!0}function To(e,t,r){var n,i;if(r=r!=null?r:{extend:!1},e.mathfield.adoptStyle=t==="backward"?"right":"left",t!=="forward"){const[u,d]=Uf(e);u!==void 0&&d!==void 0&&e.deleteAtoms([u,d])}if(t==="upward")return jm(e,r);if(t==="downward")return Gm(e,r);if(r.extend){let u=Xd(e,e.position,t);u<0&&(u=0),u>e.lastOffset&&(u=e.lastOffset);const d=e.setSelection(e.anchor,u);return e.mathfield.stopCoalescingUndo(),d}if(e.selectionIsPlaceholder){e.collapseSelection(t);const u=To(e,t);return e.mathfield.stopCoalescingUndo(),u}let a=e.position;const s=a;if(e.collapseSelection(t)?(a=e.position,up(e,a)||(a=Xd(e,a,t))):a=Xd(e,a,t),a<0||a>e.lastOffset){let u=!0;return e.silenceNotifications||(u=(i=(n=e.mathfield.host)==null?void 0:n.dispatchEvent(new CustomEvent("move-out",{detail:{direction:t},cancelable:!0,bubbles:!0,composed:!0})))!=null?i:!0),u&&e.announce("plonk"),u}return e.setPositionHandlingPlaceholder(a),e.mathfield.stopCoalescingUndo(),e.announce("move",s),!0}function Xd(e,t,r){return t=t+(r==="forward"?1:-1),t<0||t>e.lastOffset||up(e,t)?t:Xd(e,t,r)}function up(e,t){var r;const n=e.at(t);let i=n.parent;for(;i&&!i.inCaptureSelection;)i=i.parent;return!(i!=null&&i.inCaptureSelection||(r=n.parent)!=null&&r.skipBoundary&&(!n.isFirstSibling&&n.isLastSibling||n.type==="first")||e.mathfield.hasEditablePrompts&&!n.parentPrompt)}function Zm(e,t,r){let n=1/0,i=0;for(;i<t.length;i++){const a=gd(e.getHTMLElement(t[i])).right,s=Math.abs(r-a);if(s<=n)n=s;else break}return t[i-1]}function Jd(e,t,r,n,i){const a=e.mathfield.hasEditablePrompts,s=a?r.filter(p=>p.type==="prompt"&&!p.captureSelection):r,u=gd(e.mathfield.getHTMLElement(t)).right,d=e.offsetOf(Zm(e.mathfield,s,u))-(a?1:0);if(n){const[p,h]=e.selection.ranges[0];let S;d<(i==="up"?p:h)?S={ranges:[[d,h]],direction:"backward"}:S={ranges:[[p,d]],direction:"forward"},e.setSelection(S)}else e.setPositionHandlingPlaceholder(d);e.announce(`move ${i}`)}function jm(e,t){var r,n;const i=(r=t==null?void 0:t.extend)!=null?r:!1;i||e.collapseSelection("backward");const a=()=>{var d,p;let h=!0;return e.silenceNotifications||(h=(p=(d=e.mathfield.host)==null?void 0:d.dispatchEvent(new CustomEvent("move-out",{detail:{direction:"upward"},cancelable:!0,bubbles:!0,composed:!0})))!=null?p:!0),e.announce(h?"plonk":"line"),h},s=e.at(e.position);let u=s;for(;u&&u.parentBranch!=="below"&&!(Array.isArray(u.parentBranch)&&u.parent instanceof qr);)u=u.parent;if(Array.isArray(u==null?void 0:u.parentBranch)&&u.parent instanceof qr){const d=u.parent;if(u.parentBranch[0]<1)return a();const p=u.parentBranch[0]-1,h=d.array[p][u.parentBranch[1]];if(!h.some(D=>D.type==="prompt"&&!D.captureSelection)&&e.mathfield.hasEditablePrompts)return a();Jd(e,s,h,i,"up")}else if(u){const d=(n=u.parent.branch("above"))!=null?n:u.parent.createBranch("above");if(!d.some(h=>h.type==="prompt"&&h.placeholderId)&&e.mathfield.hasEditablePrompts)return a();Jd(e,s,d,i,"up")}else return a();return e.mathfield.stopCoalescingUndo(),!0}function Gm(e,t){var r,n;const i=(r=t==null?void 0:t.extend)!=null?r:!1;i||e.collapseSelection("forward");const a=()=>{var d,p;let h=!0;return e.silenceNotifications||(h=(p=(d=e.mathfield.host)==null?void 0:d.dispatchEvent(new CustomEvent("move-out",{detail:{direction:"downward"},cancelable:!0,bubbles:!0,composed:!0})))!=null?p:!0),e.announce(h?"plonk":"line"),h},s=e.at(e.position);let u=s;for(;u&&u.parentBranch!=="above"&&!(Array.isArray(u.parentBranch)&&u.parent instanceof qr);)u=u.parent;if(Array.isArray(u==null?void 0:u.parentBranch)&&u.parent instanceof qr){const d=u.parent;if(u.parentBranch[0]+1>d.array.length-1)return a();const p=u.parentBranch[0]+1,h=d.array[p][u.parentBranch[1]];if(!h.some(D=>D.type==="prompt"&&!D.captureSelection)&&e.mathfield.hasEditablePrompts)return a();Jd(e,s,h,i,"down")}else if(u){const d=(n=u.parent.branch("below"))!=null?n:u.parent.createBranch("below");if(!d.some(h=>h.type==="prompt")&&e.mathfield.hasEditablePrompts)return a();Jd(e,s,d,i,"down")}else return a();return!0}function dp(e){const t=e.position,r=e.at(t).parent;return r!=null&&r.parent?(e.position=e.offsetOf(r),e.mathfield.stopCoalescingUndo(),e.announce("move",t),!0):(e.announce("plonk"),!1)}function qm(e){let t=0,r=e.at(e.position),n=!1;for(;r;)(!r.hasEmptyBranch("superscript")||!r.hasEmptyBranch("subscript"))&&(t+=1),r.hasEmptyBranch("superscript")?r.hasEmptyBranch("subscript")||(n=!1):n=!0,r=r.parent;return n?t:0}function Xm(e){let t=0,r=e.at(e.position),n=!1;for(;r;)(!r.hasEmptyBranch("superscript")||!r.hasEmptyBranch("subscript"))&&(t+=1),r.hasEmptyBranch("superscript")?r.hasEmptyBranch("subscript")||(n=!0):n=!1,r=r.parent;return n?t:0}function fp(e){var t;if(e.collapseSelection(),qm(e)>=e.mathfield.options.scriptDepth[1])return e.announce("plonk"),!1;let r=e.at(e.position);return r.subsupPlacement===void 0&&(((t=r.rightSibling)==null?void 0:t.type)!=="subsup"&&r.parent.addChildAfter(new m({style:r.computedStyle}),r),r=r.rightSibling),r.createBranch("superscript"),e.setSelection(e.getSiblingsRange(e.offsetOf(r.superscript[0]))),!0}function pp(e){var t;if(e.collapseSelection(),Xm(e)>=e.mathfield.options.scriptDepth[0])return e.announce("plonk"),!1;let r=e.at(e.position);return r.subsupPlacement===void 0&&(((t=e.at(e.position+1))==null?void 0:t.type)!=="subsup"&&r.parent.addChildAfter(new m({style:e.at(e.position).computedStyle}),r),r=e.at(e.position+1)),r.createBranch("subscript"),e.setSelection(e.getSiblingsRange(e.offsetOf(r.subscript[0]))),!0}function Jm(){function e(d){const p=[],h=[];return[...d.querySelectorAll(`input, select, textarea, a[href], button,
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n=e.offsetOf(t);t.type==="placeholder"?e.setSelection(n-1,n):e.position=n}return e.announce("move",r),e.mathfield.stopCoalescingUndo(),!0}function Yd(e,t,r=!0){var n,i;const a=t==="forward"?1:-1;e.at(e.anchor).type==="placeholder"&&To(e,t);let s;const u=e.at(e.anchor).parentPrompt;u?t==="forward"?s=e.offsetOf(u)+1:s=e.offsetOf(u.leftSibling):s=Math.max(e.position+a,0);const d=pf(e,s,t);if(!d||t==="forward"&&e.offsetOf(d)<s||t==="backward"&&e.offsetOf(d)>s){if(!r||!((i=(n=e.mathfield.host)==null?void 0:n.dispatchEvent(new CustomEvent("move-out",{detail:{direction:t},cancelable:!0,bubbles:!0,composed:!0})))==null||i))return e.announce("plonk"),!1;const h=Jm();if(!document.activeElement||h.length<=1)return e.announce("plonk"),!1;let S=h.indexOf(document.activeElement)+a;return S<0&&(S=h.length-1),S>=h.length&&(S=0),h[S].focus(),e.mathfield.stopCoalescingUndo(),!0}return go(e,d),!0}function pf(e,t=0,r="forward"){return e.findAtom(n=>n.type==="placeholder"||n.type==="prompt"||!e.mathfield.readOnly&&n.treeDepth>2&&n.isFirstSibling&&n.isLastSibling,t,r)}Oa({moveToOpposite:e=>{const t={superscript:"subscript",subscript:"superscript",above:"below",below:"above"},r=e.at(e.position),{parent:n}=r;if(!n)return e.announce("plonk"),!1;const i=r.parentBranch;let a;if(typeof i=="string"&&(a=t[i]),!a){const u=r.subsupPlacement?pp(e):fp(e);return e.mathfield.stopCoalescingUndo(),u}n.branch(a)||n.createBranch(a);const s=e.setSelection(e.getBranchRange(e.offsetOf(n),a));return e.mathfield.stopCoalescingUndo(),s},moveBeforeParent:e=>{const{parent:t}=e.at(e.position);return t?(e.position=e.offsetOf(t),e.mathfield.stopCoalescingUndo(),!0):(e.announce("plonk"),!1)},moveAfterParent:e=>dp(e),moveToNextChar:e=>To(e,"forward"),moveToPreviousChar:e=>To(e,"backward"),moveUp:e=>To(e,"upward"),moveDown:e=>To(e,"downward"),moveToNextWord:e=>oc(e,"forward"),moveToPreviousWord:e=>oc(e,"backward"),moveToGroupStart:e=>{const t=e.offsetOf(e.at(e.position).firstSibling);return t===e.position?(e.announce("plonk"),!1):(e.position=t,e.mathfield.stopCoalescingUndo(),!0)},moveToGroupEnd:e=>{const t=e.offsetOf(e.at(e.position).lastSibling);return t===e.position?(e.announce("plonk"),!1):(e.position=t,e.mathfield.stopCoalescingUndo(),!0)},moveToNextGroup:e=>{var t,r,n,i;if(e.position===e.lastOffset&&e.anchor===e.lastOffset)return Yd(e,"forward");const a=e.at(e.position);if(a.mode==="text"){if(e.selectionIsCollapsed){let D=a;for(;D&&D.mode==="text";)D=D.leftSibling;let P=a;for(;((t=P.rightSibling)==null?void 0:t.mode)==="text";)P=P.rightSibling;if(D&&P)return ma(e,[D,P])}if(a.rightSibling.mode==="text"){let D=a;for(;D&&D.mode==="text";)D=D.rightSibling;return D?(go(e,(r=D.leftSibling)!=null?r:D),e.mathfield.switchMode("math"),!0):go(e,e.lastOffset)}}const u=e.at(e.anchor).parentPrompt,d=u?e.offsetOf(u)+1:Math.max(e.position+1,0),p=pf(e,d,"forward");if(p)return go(e,p);const h=hp(e,a,D=>D.type==="leftright"||D.type==="text","forward");if(h){if(h.mode==="text"){let D=h;for(;D&&D.mode==="text";)D=D.rightSibling;return ma(e,[(n=h.leftSibling)!=null?n:h,(i=D.leftSibling)!=null?i:D])}return ma(e,h)}const S=a.parent;if(S){if(S.type==="leftright"||S.type==="surd")return ma(e,S);if(a.parentBranch==="superscript"&&S.subscript)return ma(e,S.subscript);if(a.parentBranch==="above"&&S.below)return ma(e,S.below);if(a.parentBranch==="superscript"||a.parentBranch==="subscript")return go(e,S);if(a.parentBranch==="above"||a.parentBranch==="below")return ma(e,S)}return go(e,e.lastOffset)},moveToPreviousGroup:e=>{var t;if(e.position===0&&e.anchor===0)return Yd(e,"backward");let r=e.at(e.position);const n=r.mode;if(n==="text"){if(e.selectionIsCollapsed){let u=r;for(;u&&u.mode==="text";)u=u.leftSibling;let d=r;for(;((t=d.rightSibling)==null?void 0:t.mode)==="text";)d=d.rightSibling;if(u&&d)return ma(e,[u,d])}for(;r&&r.mode==="text";)r=r.leftSibling;return r?go(e,r):go(e,0)}const i=e.at(e.anchor).parentPrompt,a=i?e.offsetOf(i.leftSibling):Math.max(e.position-1,0),s=pf(e,a,"backward");if(s)return go(e,s);if(n==="math"){const u=hp(e,r,p=>p.type==="leftright"||p.type==="text","backward");if(u){if(u.mode==="text"){let p=u;for(;p&&p.mode==="text";)p=p.leftSibling;return ma(e,[u,p])}return ma(e,u)}const d=r.parent;if(d){if(d.type==="leftright"||d.type==="surd")return ma(e,d);if(r.parentBranch==="subscript"&&d.superscript)return ma(e,d.superscript);if(r.parentBranch==="below"&&d.above)return ma(e,d.above);if(r.parentBranch==="superscript"||r.parentBranch==="subscript")return go(e,d);if(r.parentBranch==="above"||r.parentBranch==="below")return ma(e,d)}return 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de=new Cn("left...right",O,{leftDelim:s,rightDelim:a});return i.addChildrenAfter([de],P),e.position=e.offsetOf(de),e.contentDidChange({data:a,inputType:"insertText"}),e.mathfield.snapshot("insert-fence"),!0}d=d.leftSibling}if(i instanceof Cn&&n.isLastSibling&&vf(i.leftDelim,a))return e.mathfield.snapshot(),i.isDirty=!0,i.rightDelim=a,e.position+=1,e.contentDidChange({data:a,inputType:"insertText"}),e.mathfield.snapshot("insert-fence"),!0;const p=e.offsetOf(n.firstSibling);let h;for(h=e.position;h>=p;h--){const P=e.at(h);if(P instanceof Cn&&(P.rightDelim==="?"||P.rightDelim===".")&&vf(P.leftDelim,a))break}const S=e.at(h);if(h>=p&&S instanceof Cn)return e.mathfield.snapshot(),S.rightDelim=a,S.addChildren(e.extractAtoms([h,e.position]),S.parentBranch),e.contentDidChange({data:a,inputType:"insertText"}),e.mathfield.snapshot("insert-fence"),!0;if(i instanceof Cn&&(i.rightDelim==="?"||i.rightDelim===".")&&vf(i.leftDelim,a))return 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t.addEventListener("focus",this,{signal:r}),t.addEventListener("wheel",this,{passive:!0,signal:r}),this._element=t,this.updateElement(),t}get activeMenuItem(){return this._activeMenuItem}set activeMenuItem(t){var r,n,i,a;if(this.rootMenu.cancelDelayedOperation(),t!==this._activeMenuItem){if(this.activeMenuItem){const s=this.activeMenuItem;s.active=!1,(r=s.submenu)==null||r.hide()}if(!((n=t==null?void 0:t.visible)==null||n)){this._activeMenuItem=null;return}this._activeMenuItem=t,t&&(t.active=!0)}t?(i=t.element)==null||i.focus({preventScroll:!0}):(a=this._element)==null||a.focus({preventScroll:!0})}get firstMenuItem(){this.updateIfDirty();let t=0,r=!1;const n=this._menuItems;for(;!r&&t<=n.length-1;){const i=n[t];r=i.type!=="divider"&&i.visible&&i.enabled,t+=1}return r?n[t-1]:null}get lastMenuItem(){this.updateIfDirty();const t=this._menuItems;let r=t.length-1,n=!1;for(;!n&&r>=0;){const i=t[r];n=i.type!=="divider"&&i.visible&&i.enabled,r-=1}return 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p=s.nextMenuItem(1);p&&(s.activeMenuItem=p)}}break;case"ArrowLeft":if(s===this.rootMenu)u||(s.activeMenuItem=s.firstMenuItem);else if((u&&(i=s.getMenuItemColumn(u))!=null?i:-1)<=0||!u){s.hide();const p=s.parentMenu.activeMenuItem;if(p){const{element:h}=p;h==null||h.focus(),h==null||h.classList.remove("is-submenu-open")}}else{const p=s.nextMenuItem(-1);p&&(s.activeMenuItem=p)}break;case"ArrowDown":s.activeMenuItem=s.nextMenuItem(s.columnCount);break;case"ArrowUp":s.activeMenuItem=s.nextMenuItem(-s.columnCount);break;case"Home":case"PageUp":s.activeMenuItem=s.firstMenuItem;break;case"End":case"PageDown":s.activeMenuItem=s.lastMenuItem;break;case"Backspace":if(this.typingBuffer&&(this.typingBuffer=this.typingBuffer.slice(0,-1),this.typingBuffer)){clearTimeout(this.typingBufferResetTimer);const d=s.findMenuItem(this.typingBuffer);d&&(s.activeMenuItem=d),this.typingBufferResetTimer=setTimeout(()=>{this.typingBuffer=""},500)}break;default:if(Td(t)){isFinite(this.typingBufferResetTimer)&&clearTimeout(this.typingBufferResetTimer),this.typingBuffer+=t.key;const d=s.findMenuItem(this.typingBuffer);d&&(s.activeMenuItem=d),this.typingBufferResetTimer=setTimeout(()=>{this.typingBuffer=""},500)}else a=!1}a&&(t.preventDefault(),t.stopPropagation())}handleEvent(t){if(t.type==="keydown")this.handleKeydownEvent(t);else if(t.type==="keyup")this.handleKeyupEvent(t);else if(t.type==="pointermove")this.lastMoveEvent=t;else if(t.type==="pointerup"&&t.target===this.scrim)Number.isFinite(this.rootMenu._openTimestamp)&&Date.now()-this.rootMenu._openTimestamp<120?this.state="modal":this.state==="modal"&&this.hide();else if(t.type==="contextmenu"){t.preventDefault(),t.stopPropagation();return}super.handleEvent(t)}dispatchEvent(t){return this._host?this._host.dispatchEvent(t):!0}get scrim(){return 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if(t==="line"){const a=pc("",e.model.root);e.keyboardDelegate.setAriaLabel(a)}else i=n?pc(t+" ",n):t;if(i){const a=e.ariaLiveText.textContent.includes("\xA0")?" \u202F ":" \xA0 ";e.ariaLiveText.textContent=i+a}}function pv(e,t){if(Number.isNaN(t))return"";const r=e.at(t);if(!r||r.treeDepth<=e.at(e.position).treeDepth)return"";let n="",i=r.parent;const a=e.at(e.position).parent;for(;i!==e.root&&i!==a;)n+=`out of ${Wp(i)};`,i=i.parent;return n}function hv(e){if(!e.selectionIsCollapsed)return pc("",e.getAtoms(e.selection));let t="";const r=e.at(e.position),n=Wp(r);return r.isFirstSibling&&(t=(n?"start of "+n:"unknown")+": "),r.isLastSibling?r.isFirstSibling||(t+=n?"end of "+n:"unknown"):t+=pc("",r),t}var mv=class{constructor(e,t,r){this.mathfield=e,this.mode=t,this.silenceNotifications=!1,this._selection={ranges:[[0,0]],direction:"none"},this._anchor=0,this._position=0,this.root=r}dispose(){this.mathfield=void 0}getState(){const e={ranges:[...this._selection.ranges]};return this.selection.direction&&this.selection.direction!=="none"&&(e.direction=this.selection.direction),{content:this.root.toJson(),selection:e,mode:this.mode}}setState(e,t){var r;const n=this.silenceNotifications;this.silenceNotifications=(r=t==null?void 0:t.silenceNotifications)!=null?r:!0;let i={};if((t==null?void 0:t.type)==="undo"&&(i={inputType:"historyUndo"}),(t==null?void 0:t.type)==="redo"&&(i={inputType:"historyRedo"}),this.contentWillChange(i)){const a=this.silenceNotifications;this.silenceNotifications=!0,this.mode=e.mode,this.root=ha(e.content),this.selection=e.selection,this.silenceNotifications=a,this.contentDidChange(i)}this.silenceNotifications=n}get atoms(){return this.root.children}get selection(){return this._selection}set selection(e){this.setSelection(e)}setSelection(e,t){return!this.mathfield.contentEditable&&this.mathfield.userSelect==="none"?!1:this.deferNotifications({selection:!0},()=>{var r,n,i;const a=this.normalizeSelection(e,t);if(a===void 0)throw new TypeError("Invalid selection");if(a.ranges.length===1&&a.ranges[0][0]===a.ranges[0][1]){const h=a.ranges[0][0];if(!this.mathfield.dirty&&!((r=this.at(h))!=null&&r.parentPrompt)&&this.mathfield.hasEditablePrompts){if((n=this.at(h-1))!=null&&n.parentPrompt){this._anchor=this.normalizeOffset(h-1),this._position=this._anchor,this._selection=this.normalizeSelection(this._anchor);return}if((i=this.at(h+1))!=null&&i.parentPrompt){this._anchor=this.normalizeOffset(h+1),this._position=this._anchor,this._selection=this.normalizeSelection(this._anchor);return}this._anchor=0,this._position=0,this._selection={ranges:[[0,0]]};return}this._anchor=h,this._position=h,this._selection=a;return}const s=Ni(a);a.direction==="backward"?[this._position,this._anchor]=s:[this._anchor,this._position]=s;const u=this.at(s[0]+1),d=this.at(s[1]),p=we.commonAncestor(u,d);(p==null?void 0:p.type)==="array"&&u.parent===p&&d.parent===p?this._selection={ranges:[s],direction:a.direction}:this._selection={ranges:[s],direction:a.direction},console.assert(this._position>=0&&this._position<=this.lastOffset)})}setPositionHandlingPlaceholder(e){var t;const r=this.at(e);(r==null?void 0:r.type)==="placeholder"?this.setSelection(e-1,e):((t=r==null?void 0:r.rightSibling)==null?void 0:t.type)==="placeholder"?this.setSelection(e,e+1):this.position=e,r instanceof Ft&&r.isSuggestion&&(r.isSuggestion=!1),this.mathfield.stopCoalescingUndo()}get position(){return this._position}set position(e){this.setSelection(e,e)}get anchor(){return this._anchor}get selectionIsCollapsed(){return this._anchor===this._position}get selectionIsPlaceholder(){return Math.abs(this._anchor-this._position)===1?this.at(Math.max(this._anchor,this._position)).type==="placeholder":!1}collapseSelection(e="forward"){return this._anchor===this._position?!1:(e==="backward"?this.position=Math.min(this._anchor,this._position):this.position=Math.max(this._anchor,this._position),!0)}get lastOffset(){return this.atoms.length-1}at(e){return this.atoms[e]}offsetOf(e){return this.atoms.indexOf(e)}getSiblingsRange(e){const t=this.at(e),{parent:r}=t;if(!r)return[0,this.lastOffset];const n=t.parent.branch(t.parentBranch);return[this.offsetOf(n[0]),this.offsetOf(n[n.length-1])]}getBranchRange(e,t){const r=this.at(e).branch(t);return[this.offsetOf(r[0]),this.offsetOf(r[r.length-1])]}getAtoms(e,t,r){let n=r!=null?r:{};if(Ks(e)){if(n=t!=null?t:{},e.ranges.length>1)return e.ranges.reduce((p,h)=>[...p,...this.getAtoms(h,n)],[]);e=e.ranges[0]}let i,a;if(_o(e)){if(i=e,!_o(t))return[];a=t}else[i,a]=e,n=t!=null?t:{};if(!Number.isFinite(i))return[];n.includeChildren===void 0&&(n.includeChildren=!1),i<0&&(i=this.lastOffset-i+1),a<0&&(a=this.lastOffset-a+1);const s=Math.min(i,a)+1,u=Math.max(i,a);if(!n.includeChildren&&s===1&&u===this.lastOffset)return[this.root];let d=[];for(let p=s;p<=u;p++){const h=this.atoms[p];Vp(this,h,s,u)&&d.push(h)}return n.includeChildren||(d=d.filter(p=>{let h=!1,{parent:S}=p;for(;S&&!h;)h=Vp(this,S,s,u),S=S.parent;return!h})),d}getAllAtoms(e=0){const t=[],r=this.lastOffset;for(let n=e;n<=r;n++)t.push(this.atoms[n]);for(let n=0;n<e;n++)t.push(this.atoms[n]);return t}findAtom(e,t=0,r="forward"){let n;const i=this.lastOffset;if(r==="forward"){for(let a=t;a<=i;a++)if(n=this.atoms[a],e(n))return n;for(let a=0;a<t;a++)if(n=this.atoms[a],e(n))return n;return}for(let a=t;a>=0;a--)if(n=this.atoms[a],e(n))return n;for(let a=i;a>t;a--)if(n=this.atoms[a],e(n))return n}extractAtoms(e){let t=this.getAtoms(e);if(t.length===1&&!t[0].parent)if(t[0].type==="root")t=[...t[0].body],t.shift();else return t=this.root.cells.flat(),this.root=new we({type:"root",body:[]}),t;for(const r of t)r.parent.removeChild(r);return t}deleteAtoms(e){this.extractAtoms(e),this.position=e[0]}atomToString(e,t){const r=t!=null?t:"latex";if(r.startsWith("latex"))return we.serialize([e],{expandMacro:r==="latex-expanded",skipStyles:r==="latex-unstyled",skipPlaceholders:r==="latex-without-placeholders",defaultMode:this.mathfield.options.defaultMode});if(r==="math-ml")return Zr(e);if(r==="spoken")return dc(e);if(r==="spoken-text"){const n=window.MathfieldElement.textToSpeechMarkup;window.MathfieldElement.textToSpeechMarkup="";const i=dc(e);return window.MathfieldElement.textToSpeechMarkup=n,i}if(r==="spoken-ssml"||r==="spoken-ssml-with-highlighting"){const n=window.MathfieldElement.textToSpeechMarkup;window.MathfieldElement.textToSpeechMarkup="ssml";const i=dc(e);return window.MathfieldElement.textToSpeechMarkup=n,i}return r==="ascii-math"?Xn(e):(console.error(`MathLive 0.98.5: Unexpected format "${r}`),"")}getValue(e,t,r){if(e===void 0)return this.atomToString(this.root,"latex");if(typeof e=="string"&&e!=="math-json")return this.atomToString(this.root,e);let n,i;if(_o(e)&&_o(t)?(n=[this.normalizeRange([e,t])],i=r):Yo(e)?(n=[this.normalizeRange(e)],i=t):Ks(e)?(n=e.ranges,i=t):(n=[this.normalizeRange([0,-1])],i=e),i!=null||(i="latex"),i==="math-json"){if(!window.MathfieldElement.computeEngine)return window[Symbol.for("io.cortexjs.compute-engine")]||console.error(`The CortexJS Compute Engine library is not available.
Load the library, for example with:
import "https://unpkg.com/@cortex-js/compute-engine?module"`),'["Error", "compute-engine-not-available"]';const a=this.getValue({ranges:n},"latex-unstyled");try{const s=window.MathfieldElement.computeEngine.parse(a);return JSON.stringify(s.json)}catch(s){return JSON.stringify(["Error",`'${s.toString()}'`])}}if(i.startsWith("latex")){const a={expandMacro:i==="latex-expanded",skipStyles:i==="latex-unstyled",skipPlaceholders:i==="latex-without-placeholders",defaultMode:this.mathfield.options.defaultMode};return Cr(n.map(s=>we.serialize(this.getAtoms(s),a)))}return n.map(a=>this.getAtoms(a).map(s=>this.atomToString(s,i)).join("")).join("")}extendSelectionTo(e,t){return!this.mathfield.contentEditable&&this.mathfield.userSelect==="none"?!1:this.deferNotifications({selection:!0},()=>{const r=this.normalizeRange([e,t]);let[n,i]=r,{parent:a}=this.at(i);if(a&&(a.type==="genfrac"||a.type==="subsup"))for(;a!==this.root&&Of(this,a,[n,i]);)i=this.offsetOf(a),a=a.parent;for(a=this.at(n).parent;a!==this.root&&Of(this,a,[n,i]);)n=this.offsetOf(a.leftSibling),a=a.parent;if(a=this.at(i).parent,(a==null?void 0:a.type)==="genfrac")for(;a!==this.root&&Of(this,a,[n,i]);)i=this.offsetOf(a),console.assert(i>=0),a=a.parent;this._position=this.normalizeOffset(t),this._selection={ranges:[[n,i]],direction:"none"}})}announce(e,t,r=[]){var n,i;((i=(n=this.mathfield.host)==null?void 0:n.dispatchEvent(new CustomEvent("announce",{detail:{command:e,previousPosition:t,atoms:r},cancelable:!0,bubbles:!0,composed:!0})))!=null?i:!0)&&fv(this.mathfield,e,t,r)}deferNotifications(e,t){const r=this._selection,n=this._anchor,i=this._position,a=this.silenceNotifications;this.silenceNotifications=!0;const s=this.root.changeCounter;t();const u=this.root.changeCounter!==s,d=n!==this._anchor||i!==this._position||E0(this._selection,r)==="different";return this.silenceNotifications=a,e.content&&u&&this.contentDidChange({inputType:e.type}),e.selection&&d&&this.selectionDidChange(),u||d}normalizeOffset(e){return e>0?e=Math.min(e,this.lastOffset):e<0&&(e=this.lastOffset+e+1),e}normalizeRange(e){let[t,r]=e;return t=this.normalizeOffset(t),r=this.normalizeOffset(r),t<r?[t,r]:[r,t]}normalizeSelection(e,t){var r;let n;if(_o(e)){const i=this.normalizeOffset(e);if(_o(t)){const a=this.normalizeOffset(t);n=i<=a?{ranges:[[i,a]],direction:"none"}:{ranges:[[a,i]],direction:"backward"}}else n={ranges:[[i,i]],direction:"none"}}else if(Yo(e)){const i=this.normalizeOffset(e[0]),a=this.normalizeOffset(e[1]);n=i<=a?{ranges:[[i,a]],direction:"none"}:{ranges:[[a,i]],direction:"backward"}}else Ks(e)&&(n={ranges:e.ranges.map(i=>this.normalizeRange(i)),direction:(r=e.direction)!=null?r:"none"});return console.assert(n!==void 0),n}get parentEnvironment(){let e=this.at(this.position).parent;if(e){for(;e.parent&&e.type!=="array";)e=e.parent;if(e.type==="array")return e}}get cell(){var e;let t=this.at(this.position);if(t){for(;t&&((e=t.parent)==null?void 0:e.type)!=="array";)t=t.parent;if(!(!(t!=null&&t.parent)||t.parent.type!=="array"))return t.parentBranch}}contentWillChange(e={}){if(this.silenceNotifications||!this.mathfield)return!0;const t=this.silenceNotifications;this.silenceNotifications=!0;const r=this.mathfield.onContentWillChange(e);return this.silenceNotifications=t,r}contentDidChange(e){var t;if(window.mathVirtualKeyboard.visible&&window.mathVirtualKeyboard.update($o(this.mathfield)),this.silenceNotifications||!this.mathfield.host||!this.mathfield)return;const r=this.silenceNotifications;this.silenceNotifications=!0,this.mathfield.host.dispatchEvent(new InputEvent("input",v(_({},e),{data:e.data?e.data:(t=e.inputType)!=null?t:"",bubbles:!0,composed:!0}))),this.silenceNotifications=r}selectionDidChange(){if(!this.mathfield||(window.mathVirtualKeyboard.visible&&window.mathVirtualKeyboard.update($o(this.mathfield)),this.silenceNotifications))return;const e=this.silenceNotifications;this.silenceNotifications=!0,this.mathfield.onSelectionDidChange(),this.silenceNotifications=e}};function Vp(e,t,r,n){const i=e.offsetOf(t);if(i<r||i>n)return!1;if(!t.hasChildren)return!0;const a=e.offsetOf(t.firstChild);if(a>=r&&a<=n){const s=e.offsetOf(t.lastChild);if(s>=r&&s<=n)return!0}return!1}function Of(e,t,r){if(!(t!=null&&t.hasChildren))return!1;const[n,i]=r,a=e.offsetOf(t.firstChild),s=e.offsetOf(t.lastChild);return a>=n&&a<=i&&s>=a&&s<=i}function mu(e,t,r,n){var i,a,s,u,d,p;const h=r.parent;if(h&&r instanceof Cn){const S=!n&&t==="forward"||n==="body"&&t==="backward";let D=S?e.offsetOf(r.firstChild):e.offsetOf(r.lastChild);return S?r.rightDelim!=="?"&&r.rightDelim!=="."?(r.leftDelim=".",r.isDirty=!0):(h.addChildrenAfter(r.removeBranch("body"),r),h.removeChild(r),D--):r.leftDelim!=="?"&&r.leftDelim!=="."?(r.rightDelim=".",r.isDirty=!0):(h.addChildrenAfter(r.removeBranch("body"),r),h.removeChild(r),D--),e.position=D,!0}if(h&&r.type==="surd"){if(t==="forward"&&!n||t==="backward"&&n==="body"){const S=r.leftSibling;r.hasChildren&&h.addChildrenAfter(r.removeBranch("body"),r),h.removeChild(r),e.position=e.offsetOf(S)}else t==="forward"&&n==="body"?e.position=e.offsetOf(r):!n&&t==="backward"?r.hasChildren?e.position=e.offsetOf(r.lastChild):(e.position=Math.max(0,e.offsetOf(r)-1),h.removeChild(r)):n==="above"&&(r.hasEmptyBranch("above")&&r.removeBranch("above"),t==="backward"?e.position=e.offsetOf(r.leftSibling):e.position=e.offsetOf(r.body[0]));return!0}if(h&&(r.type==="box"||r.type==="enclose")){const S=n&&t==="backward"||!n&&t==="forward"?r.leftSibling:r.lastChild;return h.addChildrenAfter(r.removeBranch("body"),r),h.removeChild(r),e.position=e.offsetOf(S),!0}if(r.type==="genfrac"||r.type==="overunder"){if(!n)return r.type==="overunder"&&r.hasEmptyBranch("body")||r.type==="genfrac"&&r.hasEmptyBranch("below")&&r.hasEmptyBranch("above")?!1:(e.position=e.offsetOf(t==="forward"?r.firstChild:r.lastChild),!0);const S=gu.fractionNavigationOrder==="numerator-denominator"?"above":"below",D=S==="above"?"below":"above";if(h&&(t==="forward"&&n===S||t==="backward"&&n===D)){const P=r.removeBranch(S),O=r.removeBranch(D);return h.addChildrenAfter([...P,...O],r),h.removeChild(r),e.position=e.offsetOf(P.length>0?P[P.length-1]:O[0]),!0}return t==="backward"?e.position=e.offsetOf(r.leftSibling):e.position=e.offsetOf(r),!0}if(r.isExtensibleSymbol||r.type==="subsup"){if(!n&&t==="forward")return!1;if(!n){if(r.subscript||r.superscript){const S=t==="forward"?(s=(i=r.superscript)==null?void 0:i[0])!=null?s:(a=r.subscript)==null?void 0:a[0]:(p=(u=r.subscript)==null?void 0:u[0].lastSibling)!=null?p:(d=r.superscript)==null?void 0:d[0].lastSibling;return S&&(e.position=e.offsetOf(S)),!0}return!1}if(!r.hasChildren&&r.type==="subsup"){const S=t==="forward"?e.offsetOf(r):Math.max(0,e.offsetOf(r)-1);return r.parent.removeChild(r),e.position=S,!0}if(n==="superscript")if(t==="backward"){const S=e.offsetOf(r.firstChild)-1;console.assert(S>=0),e.position=S}else r.subscript?e.position=e.offsetOf(r.subscript[0]):e.position=e.offsetOf(r);else n==="subscript"&&(t==="backward"&&r.superscript?e.position=e.offsetOf(r.superscript[0].lastSibling):t==="backward"?e.position=e.offsetOf(r.firstChild)-1:e.position=e.offsetOf(r));if(n&&r.hasEmptyBranch(n)&&(r.removeBranch(n),r.type==="subsup"&&!r.subscript&&!r.superscript)){const S=t==="forward"?e.offsetOf(r):Math.max(0,e.offsetOf(r)-1);r.parent.removeChild(r),e.position=S}return!0}if((h==null?void 0:h.type)==="genfrac"&&!n&&r.type!=="first"){let S=e.offsetOf(r.leftSibling);return h.removeChild(r),h.hasEmptyBranch("above")&&h.hasEmptyBranch("below")?(S=e.offsetOf(h.leftSibling),h.parent.removeChild(h),e.announce("delete",void 0,[h]),e.position=S,!0):(e.announce("delete",void 0,[r]),e.position=S,!0)}if(t==="backward"&&((h==null?void 0:h.command)==="\\ln"||(h==null?void 0:h.command)==="\\log")&&r.parentBranch!=="body"){const S=e.offsetOf(h.leftSibling);return h.parent.removeChild(h),e.announce("delete",void 0,[h]),e.position=S,!0}return!1}function gv(e){return!e.mathfield.isSelectionEditable||!e.contentWillChange({inputType:"deleteContentBackward"})?!1:e.selectionIsCollapsed?e.deferNotifications({content:!0,selection:!0,type:"deleteContentBackward"},()=>{let t=e.at(e.position);if(!(t&&mu(e,"backward",t))){if(t!=null&&t.isFirstSibling){if(mu(e,"backward",t.parent,t.parentBranch))return;t=null}if(!t){e.announce("plonk");return}e.position=e.offsetOf(t.leftSibling),t.parent.removeChild(t),e.announce("delete",void 0,[t])}}):Ro(e,Ni(e.selection),"deleteContentBackward")}function vv(e){return!e.mathfield.isSelectionEditable||!e.contentWillChange({inputType:"deleteContentForward"})?!1:e.selectionIsCollapsed?e.deferNotifications({content:!0,selection:!0,type:"deleteContentForward"},()=>{var t,r;let n=e.at(e.position).rightSibling;if(n&&mu(e,"forward",n))return;if(n){if(e.at(e.position).isLastSibling&&mu(e,"forward",n.parent,n.parentBranch))return}else{if(n=e.at(e.position),n.isLastSibling&&mu(e,"forward",n.parent,n.parentBranch))return;n=void 0}if(e.position===e.lastOffset||!n){e.announce("plonk");return}n.parent.removeChild(n);let i=(t=e.at(e.position))==null?void 0:t.rightSibling;for(;(i==null?void 0:i.type)==="subsup";)i.parent.removeChild(i),i=(r=e.at(e.position))==null?void 0:r.rightSibling;e.announce("delete",void 0,[n])}):Ro(e,Ni(e.selection),"deleteContentForward")}function Ro(e,t,r){const n=e.getAtoms(t);if(n.length>0&&n[0].parent){let i=n[0].parent.firstChild;i.type==="first"&&(i=i.rightSibling);const a=n[n.length-1].parent.lastChild;let s=n[0];s.type==="first"&&(s=s.rightSibling);const u=n[n.length-1];if(s===i&&u===a){const d=n[0].parent;d.parent&&d.type!=="prompt"&&(t=[e.offsetOf(d.leftSibling),e.offsetOf(d)])}if(n.length===1&&n[0].type==="placeholder"&&n[0].parent.type==="genfrac"){const d=n[0].parent,p=n[0].parentBranch==="below"?"above":"below",h=e.offsetOf(d.leftSibling);return e.deferNotifications({content:!0,selection:!0,type:r},()=>{var S,D;const P=d.removeBranch(p);if(P.length===1&&P[0].type==="placeholder")(D=d.parent)==null||D.removeChild(d),e.position=Math.max(0,h);else{const O=d.parent.addChildrenAfter(P,d);(S=d.parent)==null||S.removeChild(d),e.position=e.offsetOf(O)}})}}return e.deferNotifications({content:!0,selection:!0,type:r},()=>e.deleteAtoms(t))}Oa({deleteAll:e=>e.contentWillChange({inputType:"deleteContent"})&&Ro(e,[0,-1],"deleteContent"),deleteForward:e=>vv(e),deleteBackward:e=>gv(e),deleteNextWord:e=>e.contentWillChange({inputType:"deleteWordForward"})&&Ro(e,[e.anchor,ff(e,e.position,"forward")],"deleteWordForward"),deletePreviousWord:e=>e.contentWillChange({inputType:"deleteWordBackward"})&&Ro(e,[e.anchor,ff(e,e.position,"backward")],"deleteWordBackward"),deleteToGroupStart:e=>e.contentWillChange({inputType:"deleteSoftLineBackward"})&&Ro(e,[e.anchor,e.offsetOf(e.at(e.position).firstSibling)],"deleteSoftLineBackward"),deleteToGroupEnd:e=>e.contentWillChange({inputType:"deleteSoftLineForward"})&&Ro(e,[e.anchor,e.offsetOf(e.at(e.position).lastSibling)],"deleteSoftLineForward"),deleteToMathFieldStart:e=>e.contentWillChange({inputType:"deleteHardLineBackward"})&&Ro(e,[e.anchor,0],"deleteHardLineBackward"),deleteToMathFieldEnd:e=>e.contentWillChange({inputType:"deleteHardLineForward"})&&Ro(e,[e.anchor,-1],"deleteHardLineForward")},{target:"model",audioFeedback:"delete",canUndo:!0,changeContent:!0,changeSelection:!0});var bv=`<svg xmlns="http://www.w3.org/2000/svg" style="width: 21px;"  viewBox="0 0 576 512" role="img" aria-label="${pe("tooltip.toggle virtual keyboard")}"><path d="M528 64H48C21.49 64 0 85.49 0 112v288c0 26.51 21.49 48 48 48h480c26.51 0 48-21.49 48-48V112c0-26.51-21.49-48-48-48zm16 336c0 8.823-7.177 16-16 16H48c-8.823 0-16-7.177-16-16V112c0-8.823 7.177-16 16-16h480c8.823 0 16 7.177 16 16v288zM168 268v-24c0-6.627-5.373-12-12-12h-24c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zm96 0v-24c0-6.627-5.373-12-12-12h-24c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zm96 0v-24c0-6.627-5.373-12-12-12h-24c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zm96 0v-24c0-6.627-5.373-12-12-12h-24c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zm-336 80v-24c0-6.627-5.373-12-12-12H84c-6.627 0-12 5.373-12 12v24c0 6.627 5.373 12 12 12h24c6.627 0 12-5.373 12-12zm384 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32s-14.3 32-32 32H32C14.3 128 0 113.7 0 96zM0 256c0-17.7 14.3-32 32-32H416c17.7 0 32 14.3 32 32s-14.3 32-32 32H32c-17.7 0-32-14.3-32-32zM448 416c0 17.7-14.3 32-32 32H32c-17.7 0-32-14.3-32-32s14.3-32 32-32H416c17.7 0 32 14.3 32 32z"/></svg>`,xv=class{constructor(e,t){this.focusBlurInProgress=!1;var r,n,i;this.options=_(v(_({},Zd()),{macros:dt(),registers:ad()}),Ud(t)),this.eventController=new AbortController;const a=this.eventController.signal;t.eventSink&&(this.host=t.eventSink),this.element=e,e.mathfield=this,this.blurred=!0,this.keystrokeCaptionVisible=!1,this.suggestionIndex=0,this.inlineShortcutBuffer=[],this.inlineShortcutBufferFlushTimer=0,this.defaultStyle={},this.adoptStyle="left",this.options.defaultMode==="inline-math"?this.element.classList.add("ML__is-inline"):this.element.classList.remove("ML__is-inline"),this.dirty=!1;let s=(n=(r=t.value)!=null?r:this.element.textContent)!=null?n:"";s=s.trim();const u=ip(this.options),d=new we({type:"root",mode:u,body:w(s,{context:this.context})});this.model=new mv(this,u,d),this.undoManager=new Um(this.model);const p=[];if(p.push("<span contenteditable=true aria-multiline=false part=keyboard-sink class=ML__keyboard-sink autocapitalize=off autocomplete=off autocorrect=off spellcheck=false inputmode=none tabindex=0></span>"),p.push('<span part=container class=ML__container aria-hidden=true  style="visibility:hidden">'),p.push("<span part=content class=ML__content>"),p.push(Xf(this)),p.push("</span>"),window.mathVirtualKeyboard&&(p.push(`<div part=virtual-keyboard-toggle class=ML__virtual-keyboard-toggle role=button ${this.hasEditableContent?"":'style="display:none;"'} data-l10n-tooltip="tooltip.toggle virtual keyboard">`),p.push(bv),p.push("</div>")),p.push('<div part=menu-toggle class=ML__menu-toggle role=button data-l10n-tooltip="tooltip.menu">'),p.push(yv),p.push("</div>"),p.push("</span>"),p.push("<span class=ML__sr-only>"),p.push("<span role=status aria-live=assertive aria-atomic=true></span>"),p.push("</span>"),this.element.innerHTML=window.MathfieldElement.createHTML(p.join("")),!this.element.children){console.error("%cMathLive 0.98.5: Something went wrong and the mathfield could not be created.%c\nIf you are using Vue, this may be because you are using the runtime-only build of Vue. Make sure to include `runtimeCompiler: true` in your Vue configuration. There may a warning from Vue in the log above.","color:red;font-family:system-ui;font-size:1.2rem;font-weight:bold","color:inherit;font-family:system-ui;font-size:inherit;font-weight:inherit");return}this._l10Subscription=Se.subscribe(()=>Se.update(this.element)),Se.update(this.element),this.field=this.element.querySelector("[part=content]"),this.field.addEventListener("click",S=>S.stopImmediatePropagation(),{capture:!1,signal:a}),this.field.addEventListener("wheel",this,{passive:!1,signal:a}),"PointerEvent"in window?this.field.addEventListener("pointerdown",this,{signal:a}):this.field.addEventListener("mousedown",this,{signal:a}),(i=this.element.querySelector("[part=virtual-keyboard-toggle]"))==null||i.addEventListener("click",()=>{window.mathVirtualKeyboard.visible?window.mathVirtualKeyboard.hide():(window.mathVirtualKeyboard.show({animate:!0}),window.mathVirtualKeyboard.update($o(this)))},{signal:a}),this._menu=new Lg(ov(this),{host:this.host}),this.field.addEventListener("contextmenu",this,{signal:a});const h=this.element.querySelector("[part=menu-toggle]");h==null||h.addEventListener("pointerdown",S=>{if(S.currentTarget!==h||this._menu.state!=="closed")return;this.element.classList.add("tracking");const D=h.getBoundingClientRect();this._menu.modifiers=js(S),this._menu.show({target:h,location:{x:D.left,y:D.bottom},onDismiss:()=>this.element.classList.remove("tracking")}),S.preventDefault(),S.stopPropagation()},{signal:a}),(this.model.atoms.length<=1||this.disabled||this.readOnly&&!this.hasEditableContent||this.userSelect==="none")&&(h.style.display="none"),this.ariaLiveText=this.element.querySelector("[role=status]"),this.keyboardDelegate=Xh(this.element.querySelector(".ML__keyboard-sink"),this.element,this),window.addEventListener("resize",this,{signal:a}),document.addEventListener("scroll",this,{signal:a}),this.resizeObserver=new ResizeObserver(()=>Un(this)),this.resizeObserver.observe(this.field),window.mathVirtualKeyboard.addEventListener("virtual-keyboard-toggle",this,{signal:a}),eu&&!Se.locale.startsWith(eu.locale)&&Zh(Se.locale),Za!=="ready"&&document.fonts.ready.then(()=>zd(this)),e.querySelector("[part=container]").style.removeProperty("visibility"),this.undoManager.startRecording(),this.undoManager.snapshot("set-value")}get defaultStyle(){return this._defaultStyle}set defaultStyle(e){this._defaultStyle=e}get effectiveStyle(){if(this.adoptStyle==="none")return this.defaultStyle;const e=this.model.at(this.model.position),t=this.adoptStyle==="right"?e.rightSibling:e;if(!t)return this.defaultStyle;if(t.type==="group"){const r=t.branch("body");return!r||r.length<2?{}:this.adoptStyle==="right"?r[1].computedStyle:r[r.length-1].computedStyle}return t.computedStyle}connectToVirtualKeyboard(){this.connectedToVirtualKeyboard||(this.connectedToVirtualKeyboard=!0,window.addEventListener("message",this,{signal:this.eventController.signal}),window.mathVirtualKeyboard.connect(),window.mathVirtualKeyboard.visible&&window.mathVirtualKeyboard.update($o(this)),i0(this))}disconnectFromVirtualKeyboard(){this.connectedToVirtualKeyboard&&(window.removeEventListener("message",this),window.mathVirtualKeyboard.disconnect(),this.connectedToVirtualKeyboard=!1,_f())}showMenu(e){var t,r;const n=(r=(t=e==null?void 0:e.location)!=null?t:Fl(this.field))!=null?r:void 0,i=e==null?void 0:e.modifiers,a=this.element.querySelector("[part=container]");return this._menu.show({target:a,location:n,modifiers:i})}get colorMap(){return e=>{var t,r,n;return(n=(r=(t=this.options).colorMap)==null?void 0:r.call(t,e))!=null?n:Nt(e)}}get backgroundColorMap(){return e=>{var t,r,n,i,a,s;return(s=(a=(r=(t=this.options).backgroundColorMap)==null?void 0:r.call(t,e))!=null?a:(i=(n=this.options).colorMap)==null?void 0:i.call(n,e))!=null?s:gt(e)}}get smartFence(){var e;return(e=this.options.smartFence)!=null?e:!1}get readOnly(){var e;return(e=this.options.readOnly)!=null?e:!1}get disabled(){var e,t;return(t=(e=this.host)==null?void 0:e.disabled)!=null?t:!1}get contentEditable(){return this.host?this.host.getAttribute("contenteditable")!=="false":!1}get userSelect(){if(!this.host)return"";const e=getComputedStyle(this.host);return e.getPropertyValue("user-select")||e.getPropertyValue("-webkit-user-select")}get hasEditableContent(){return this.disabled||!this.contentEditable?!1:!this.readOnly||this.hasEditablePrompts}get hasEditablePrompts(){return this.readOnly&&!this.disabled&&this.contentEditable&&this.model.findAtom(e=>e.type==="prompt"&&!e.locked)!==void 0}get isSelectionEditable(){if(this.disabled||!this.contentEditable)return!1;if(!this.readOnly)return!0;const e=this.model.at(this.model.anchor),t=this.model.at(this.model.position),r=we.commonAncestor(e,t);return!!((r==null?void 0:r.type)==="prompt"||r!=null&&r.parentPrompt)}get letterShapeStyle(){var e;return(e=this.options.letterShapeStyle)!=null?e:"tex"}get minFontScale(){return this.options.minFontScale}get selectionStyle(){if(this.model.selectionIsCollapsed)return this.effectiveStyle;const e=this.model.getAtoms(this.model.selection);if(e.length===0)return{};const t=_({},e[0].style);for(const r of e)for(const[n,i]of Object.entries(r.style))t[n]!==i&&delete t[n];return t}queryStyle(e){const t=bf(this,e);"verbatimColor"in t&&delete t.verbatimColor,"verbatimBackgroundColor"in t&&delete t.verbatimBackgroundColor;const r=Object.keys(t).length;if(r===0)return"all";if(r>1){for(const d of Object.keys(t)){const p=this.queryStyle({[d]:t[d]});if(p==="none")return"none";if(p==="some")return"some"}return"all"}const n=Object.keys(t)[0],i=t[n];if(this.model.selectionIsCollapsed)return this.effectiveStyle[n]===i?"all":"none";const a=this.model.getAtoms(this.model.selection,{includeChildren:!0});let s=a.length;if(s===0)return"none";let u=0;for(const d of a){if(d.type==="first"){s-=1;continue}d.style[n]===i&&(u+=1)}return u===0?"none":u===s?"all":"some"}get keybindings(){var e,t;if(this._keybindings)return this._keybindings;const[r,n]=tm(this.options.keybindings,(e=tu())!=null?e:jh());return((t=tu())==null?void 0:t.score)>0&&(this._keybindings=r,n.length>0&&console.error("MathLive 0.98.5: Invalid keybindings for current keyboard layout",n)),r}get menu(){return this._menu}setOptions(e){var t;this.options=_(_({},this.options),Ud(e)),this._keybindings=void 0,this.options.defaultMode==="inline-math"?this.element.classList.add("ML__is-inline"):this.element.classList.remove("ML__is-inline");let r=this.options.defaultMode;r==="inline-math"&&(r="math"),((t=this.model.root.firstChild)==null?void 0:t.mode)!==r&&(this.model.root.firstChild.mode=r),this.options.readOnly&&this.hasFocus()&&window.mathVirtualKeyboard.visible&&this.executeCommand("hideVirtualKeyboard");const n=we.serialize([this.model.root],{expandMacro:!1,defaultMode:this.options.defaultMode});("macros"in e||this.model.getValue()!==n)&&ln.insert(this.model,n,{insertionMode:"replaceAll",selectionMode:"after",format:"latex",silenceNotifications:!0,mode:"math"}),("value"in e||"macros"in e||"registers"in e||"colorMap"in e||"backgroundColorMap"in e||"letterShapeStyle"in e||"minFontScale"in e||"readOnly"in e||"placeholderSymbol"in e)&&Un(this)}getOptions(e){return Xs(this.options,e)}getOption(e){return Xs(this.options,e)}handleEvent(e){return Es(this,null,function*(){var t;if(Qo(this)){if(lf(e)){if(!jc(e.origin,(t=this.options.originValidator)!=null?t:"none"))throw new DOMException(`Message from unknown origin (${e.origin}) cannot be handled`,"SecurityError");const{action:r}=e.data;if(r==="execute-command"){const n=e.data.command;if(nc(n)==="virtual-keyboard")return;this.executeCommand(n)}else r==="update-state"||(r==="focus"?this.focus({preventScroll:!0}):r==="blur"&&this.blur());return}switch(e.type){case"focus":this.onFocus();break;case"blur":this.onBlur();break;case"mousedown":this.userSelect!=="none"&&yp(this,e);break;case"pointerdown":this.userSelect!=="none"&&(yp(this,e),e.shiftKey===!1&&(yield Tp(e,this.element.querySelector("[part=container]"),this._menu))&&e0.stop());break;case"contextmenu":this.userSelect!=="none"&&e.shiftKey===!1&&(yield Tp(e,this.element.querySelector("[part=container]"),this._menu))&&e0.stop();break;case"virtual-keyboard-toggle":this.hasFocus()&&i0(this);break;case"resize":this.geometryChangeTimer&&cancelAnimationFrame(this.geometryChangeTimer),this.geometryChangeTimer=requestAnimationFrame(()=>Qo(this)&&this.onGeometryChange());break;case"scroll":this.geometryChangeTimer&&cancelAnimationFrame(this.geometryChangeTimer),this.geometryChangeTimer=requestAnimationFrame(()=>Qo(this)&&this.onGeometryChange());break;case"wheel":this.onWheel(e);break;default:console.warn("Unexpected event type",e.type)}}})}dispose(){if(!Qo(this))return;Se.unsubscribe(this._l10Subscription),this.keyboardDelegate.dispose(),this.keyboardDelegate=void 0,this.eventController.abort(),this.eventController=void 0,this.resizeObserver.disconnect(),window.mathVirtualKeyboard.removeEventListener("virtual-keyboard-toggle",this),this.disconnectFromVirtualKeyboard(),this.model.dispose();const e=this.element;delete e.mathfield,this.element=void 0,this.host=void 0,this.field=void 0,this.ariaLiveText=void 0,rg(),sm(),_g()}flushInlineShortcutBuffer(e){if(e!=null||(e={defer:!1}),!e.defer){this.inlineShortcutBuffer=[],clearTimeout(this.inlineShortcutBufferFlushTimer),this.inlineShortcutBufferFlushTimer=0;return}this.options.inlineShortcutTimeout>0&&(clearTimeout(this.inlineShortcutBufferFlushTimer),this.inlineShortcutBufferFlushTimer=setTimeout(()=>this.flushInlineShortcutBuffer(),this.options.inlineShortcutTimeout))}executeCommand(e){return nc(e)==="virtual-keyboard"?(this.focus({preventScroll:!0}),window.mathVirtualKeyboard.executeCommand(e),requestAnimationFrame(()=>window.mathVirtualKeyboard.update($o(this))),!1):hm(this,e)}get errors(){return B(this.model.getValue(),{context:this.context})}getValue(e,t,r){return this.model.getValue(e,t,r)}setValue(e,t){var r;t=t!=null?t:{mode:"math"},t.insertionMode===void 0&&(t.insertionMode="replaceAll"),(t.format===void 0||t.format==="auto")&&(t.format="latex"),(t.mode===void 0||t.mode==="auto")&&(t.mode=(r=A0(this.model,this.model.position))!=null?r:"math");const n=this.undoManager.canUndo();ln.insert(this.model,e,t)&&(Un(this),n||this.undoManager.reset(),this.undoManager.snapshot("set-value"))}get expression(){const e=window.MathfieldElement.computeEngine;return e?e.box(e.parse(this.model.getValue("latex-unstyled"))):(console.error("MathLive 0.98.5:  no compute engine available. Make sure the Compute Engine library is loaded."),null)}scrollIntoView(){var e;if(!this.element)return;if(this.host){if(this.options.onScrollIntoView)this.options.onScrollIntoView(this);else if(this.host.scrollIntoView({block:"nearest",inline:"nearest"}),window.mathVirtualKeyboard.visible&&window.mathVirtualKeyboard.container===window.document.body){const n=window.mathVirtualKeyboard.boundingRect,i=this.host.getBoundingClientRect();i.bottom>n.top&&((e=window.document.scrollingElement)==null||e.scrollBy(0,i.bottom-n.top+8))}}this.dirty&&Gs(this,{interactive:!0});const t=this.field.getBoundingClientRect();let r=null;if(this.model.selectionIsCollapsed)r=Fl(this.field);else{const n=md(this);if(n.length>0){let i=-1/0,a=-1/0;for(const s of n)s.right>i&&(i=s.right),s.top<a&&(a=s.top);r={x:i+t.left-this.field.scrollLeft,y:a+t.top-this.field.scrollTop,height:0}}}if(this.host&&r){const n=this.host.getBoundingClientRect(),i=r.y;let a=this.host.scrollTop;i<n.top?a=i-n.top+this.host.scrollTop:i>n.bottom&&(a=i-n.bottom+this.host.scrollTop+r.height),this.host.scroll({top:a,left:0})}if(r){const n=r.x-window.scrollX;let i=this.field.scrollLeft;n<t.left?i=n-t.left+this.field.scrollLeft-20:n>t.right&&(i=n-t.right+this.field.scrollLeft+20),this.field.scroll({top:this.field.scrollTop,left:i})}}insert(e,t){return typeof e!="string"||e.length===0&&((t==null?void 0:t.insertionMode)==="insertBefore"||(t==null?void 0:t.insertionMode)==="insertAfter")||e.length===0&&this.model.selectionIsCollapsed?!1:(this.flushInlineShortcutBuffer(),t=t!=null?t:{mode:"math"},t.focus&&this.focus(),t.feedback&&(window.MathfieldElement.keypressVibration&&lt()&&navigator.vibrate(Jf),window.MathfieldElement.playSound("keypress")),e==="\\\\"?ap(this.model):e==="&"?op(this.model):this.model.selectionIsCollapsed?ln.insert(this.model,e,_({style:this.model.at(this.model.position).computedStyle},t)):ln.insert(this.model,e,t),this.snapshot(`insert-${this.model.at(this.model.position).type}`),Un(this),t.scrollIntoView&&this.scrollIntoView(),!0)}switchMode(e,t="",r=""){var n;if(this.model.mode===e||!this.hasEditableContent||!this.contentEditable||this.disabled)return;const i=this.model.mode;if(this.model.mode=e,!((n=this.host)!=null&&n.dispatchEvent(new Event("mode-change",{bubbles:!0,composed:!0,cancelable:!0})))){this.model.mode=i;return}const a=this.model.mode,{model:s}=this;s.deferNotifications({content:!!r||!!t,selection:!0,type:"insertText"},()=>{let u=!1;if(this.flushInlineShortcutBuffer(),this.stopCoalescingUndo(),t&&e!=="latex"){const d=w(t,{context:this.context,parseMode:e});s.collapseSelection("forward");const p=s.at(s.position);s.position=s.offsetOf(p.parent.addChildrenAfter(d,p)),u=!0}if(this.model.mode=e,e==="latex"){let d=s.selectionIsCollapsed;tc(this,"accept");let p,h=s.at(s.position);if(d)p="\\";else{const D=Ni(s.selection);p=this.model.getValue(D,"latex");const P=this.model.extractAtoms(D);P.length===1&&P[0].type==="placeholder"&&(p=t,d=!0),h=s.at(D[0])}const S=new mr(p);h.parent.addChildAfter(S,h),d?s.position=s.offsetOf(S.lastChild):s.setSelection(s.offsetOf(S.firstChild),s.offsetOf(S.lastChild))}else ru(s).forEach(d=>{d.isError=!1});if(r){const d=w(r,{context:this.context,parseMode:a});s.collapseSelection("forward");const p=s.at(s.position);s.position=s.offsetOf(p.parent.addChildrenAfter(d,p)),u=!0}return Un(this),this.undoManager.snapshot(e==="latex"?"insert-latex":"insert"),u}),this.model.mode=e,window.mathVirtualKeyboard.update($o(this))}hasFocus(){return!this.blurred}focus(e){var t;this.hasFocus()||(this.keyboardDelegate.focus(),this.connectToVirtualKeyboard(),this.onFocus(),this.model.announce("line")),(t=e==null?void 0:e.preventScroll)!=null&&t||this.scrollIntoView()}blur(){this.disconnectFromVirtualKeyboard(),this.hasFocus()&&this.keyboardDelegate.blur()}select(){this.model.selection={ranges:[[0,this.model.lastOffset]]},this.focus()}applyStyle(e,t={}){var r,n;const i={operation:"set",silenceNotifications:!1};Yo(t)?i.range=t:(t.operation==="toggle"&&(i.operation="toggle"),i.range=t.range,i.silenceNotifications=(r=t.silenceNotifications)!=null?r:!1);const a=bf(this,e),s=(n=i.operation)!=null?n:"set";if(i.range===void 0&&this.model.selectionIsCollapsed){if(s==="set"){this.defaultStyle=_(_({},this.defaultStyle),a);return}const u=_({},this.defaultStyle);for(const d of Object.keys(a))u[d]===a[d]?(d==="color"&&delete u.verbatimColor,d==="backgroundColor"&&delete u.verbatimBackgroundColor,delete u[d]):u[d]=a[d];this.defaultStyle=u;return}this.model.deferNotifications({content:!i.silenceNotifications,type:"insertText"},()=>{if(i.range===void 0)for(const u of this.model.selection.ranges)uf(this.model,u,a,{operation:s});else uf(this.model,i.range,a,{operation:s})}),Un(this)}toggleContextMenu(){var e;return this._menu.visible?this._menu.state==="open"?(this._menu.hide(),!0):(this._menu.show({target:this.element.querySelector("[part=container]"),location:(e=this.getCaretPoint())!=null?e:void 0,onDismiss:()=>{var t;return(t=this.element)==null?void 0:t.focus()}}),!0):!1}getCaretPoint(){const e=Fl(this.field);return e?{x:e.x,y:e.y}:null}setCaretPoint(e,t){const r=uu(this,e,t,{bias:0});if(r<0)return!1;const n=this.model.position;return this.model.position=r,this.model.announce("move",n),Un(this),!0}getPrompt(e){const t=this.model.findAtom(r=>r.type==="prompt"&&r.placeholderId===e);return console.assert(t!==void 0,"MathLive 0.98.5:  no prompts with matching ID found"),t}getPromptValue(e,t){const r=this.getPrompt(e);if(!r)return"";const n=this.model.offsetOf(r.firstChild),i=this.model.offsetOf(r.lastChild);return this.model.getValue(n,i,t)}getPrompts(e){return this.model.getAllAtoms().filter(t=>t.type!=="prompt"?!1:e?!(e.id&&t.placeholderId!==e.id||e.locked&&t.locked!==e.locked||e.correctness==="undefined"&&t.correctness||e.correctness&&t.correctness!==e.correctness):!0).map(t=>t.placeholderId)}setPromptValue(e,t,r){if(t!==void 0){const n=this.getPrompt(e);if(!n){console.error(`MathLive 0.98.5: unknown prompt ${e}`);return}const i=this.model.getBranchRange(this.model.offsetOf(n),"body");this.model.setSelection(i),this.insert(t,v(_({},r),{insertionMode:"replaceSelection"}))}r!=null&&r.silenceNotifications&&(this.valueOnFocus=this.getValue()),Un(this)}setPromptState(e,t,r){const n=this.getPrompt(e);if(!n){console.error(`MathLive 0.98.5: unknown prompt ${e}`);return}t==="undefined"?n.correctness=void 0:typeof t=="string"&&(n.correctness=t),typeof r=="boolean"&&(n.locked=r,n.captureSelection=r),Un(this)}getPromptState(e){const t=this.getPrompt(e);return t?[t.correctness,t.locked]:(console.error(`MathLive 0.98.5: unknown prompt ${e}`),[void 0,!0])}getPromptRange(e){const t=this.getPrompt(e);return t?this.model.getBranchRange(this.model.offsetOf(t),"body"):(console.error(`MathLive 0.98.5: unknown prompt ${e}`),[0,0])}canUndo(){return this.undoManager.canUndo()}canRedo(){return this.undoManager.canRedo()}popUndoStack(){this.undoManager.pop()}snapshot(e){var t;this.undoManager.snapshot(e)&&(window.mathVirtualKeyboard.visible&&window.mathVirtualKeyboard.update($o(this)),(t=this.host)==null||t.dispatchEvent(new CustomEvent("undo-state-change",{bubbles:!0,composed:!0,detail:{type:"snapshot"}})))}stopCoalescingUndo(){this.undoManager.stopCoalescing(this.model.selection)}stopRecording(){this.undoManager.stopRecording()}startRecording(){this.undoManager.startRecording()}undo(){var e;this.undoManager.undo()&&(window.mathVirtualKeyboard.visible&&window.mathVirtualKeyboard.update($o(this)),(e=this.host)==null||e.dispatchEvent(new CustomEvent("undo-state-change",{bubbles:!0,composed:!0,detail:{type:"undo"}})))}redo(){var e;this.undoManager.redo()&&(window.mathVirtualKeyboard.visible&&window.mathVirtualKeyboard.update($o(this)),(e=this.host)==null||e.dispatchEvent(new CustomEvent("undo-state-change",{bubbles:!0,composed:!0,detail:{type:"undo"}})))}resetUndo(){var e;(e=this.undoManager)==null||e.reset()}onSelectionDidChange(){var e,t;const r=this.model;this.keyboardDelegate.setValue(r.getValue(this.model.selection,"latex-expanded"));{const n=r.at(r.position),i=(e=n.mode)!=null?e:ip(this.options);this.model.mode!==i&&(this.model.mode==="latex"?(tc(this,"accept",{mode:i}),r.position=r.offsetOf(n)):this.switchMode(i))}(t=this.host)==null||t.dispatchEvent(new Event("selection-change",{bubbles:!0,composed:!0})),window.mathVirtualKeyboard.visible&&window.mathVirtualKeyboard.update($o(this)),i0(this)}onContentWillChange(e){var t,r,n;return(n=(r=this.host)==null?void 0:r.dispatchEvent(new InputEvent("beforeinput",v(_({},e),{data:e.data?e.data:(t=e.inputType)!=null?t:"",cancelable:!0,bubbles:!0,composed:!0}))))!=null?n:!0}onFocus(){this.focusBlurInProgress||!this.blurred||(this.focusBlurInProgress=!0,this.blurred=!1,this.keyboardDelegate.focus(),this.stopCoalescingUndo(),Gs(this,{interactive:!0}),this.valueOnFocus=this.model.getValue(),this.hasEditablePrompts&&!this.model.at(this.model.anchor).parentPrompt&&this.executeCommand("moveToNextPlaceholder"),this.focusBlurInProgress=!1)}onBlur(){var e,t,r;if(this.focusBlurInProgress||this.blurred)return;this.focusBlurInProgress=!0,this.stopCoalescingUndo(),this.blurred=!0,this.ariaLiveText.textContent="",rc(this),this.model.getValue()!==this.valueOnFocus&&((e=this.host)==null||e.dispatchEvent(new Event("change",{bubbles:!0,composed:!0}))),this.disconnectFromVirtualKeyboard(),(t=this.host)==null||t.dispatchEvent(new Event("blur",{bubbles:!1,composed:!0})),(r=this.host)==null||r.dispatchEvent(new UIEvent("focusout",{bubbles:!0,composed:!0})),Un(this),this.focusBlurInProgress=!1,_f();const n=new AbortController,i=n.signal;document.addEventListener("visibilitychange",()=>{document.visibilityState==="hidden"&&document.addEventListener("visibilitychange",()=>{Qo(this)&&document.visibilityState==="visible"&&this.focus({preventScroll:!0})},{once:!0,signal:i})},{once:!0,signal:i}),setTimeout(()=>n.abort(),100)}onInput(e){mf(this,e)}onKeystroke(e){return gp(this,e)}onCompositionStart(e){this.model.deleteAtoms(Ni(this.model.selection));const t=Fl(this.field);t&&requestAnimationFrame(()=>{Gs(this),this.keyboardDelegate.moveTo(t.x,t.y-t.height)})}onCompositionUpdate(e){Rm(this.model,e),Un(this)}onCompositionEnd(e){Om(this.model),mf(this,e,{simulateKeystroke:!0})}onCut(e){if(!this.isSelectionEditable){this.model.announce("plonk");return}this.model.contentWillChange({inputType:"deleteByCut"})&&(this.stopCoalescingUndo(),ln.onCopy(this,e),Ro(this.model,Ni(this.model.selection),"deleteByCut"),this.snapshot("cut"),Un(this))}onCopy(e){ln.onCopy(this,e)}onPaste(e){let t=this.isSelectionEditable;return t&&(t=ln.onPaste(this.model.at(this.model.position).mode,this,e.clipboardData)),t||this.model.announce("plonk"),e.preventDefault(),e.stopPropagation(),t}onGeometryChange(){this._menu.hide(),Od(this),i0(this)}onWheel(e){const t=5*e.deltaX;if(!Number.isFinite(t)||t===0)return;const r=this.field;t<0&&r.scrollLeft===0||t>0&&r.offsetWidth+r.scrollLeft>=r.scrollWidth||(r.scrollBy({top:0,left:t}),e.preventDefault(),e.stopPropagation())}getHTMLElement(e){let t=e;for(;!t.id&&t.hasChildren;)t=e.children[0];return this.field.querySelector(`[data-atom-id="${t.id}"]`)}get context(){var e,t;return{registers:(e=this.options.registers)!=null?e:{},smartFence:this.smartFence,letterShapeStyle:this.letterShapeStyle,minFontScale:this.minFontScale,placeholderSymbol:(t=this.options.placeholderSymbol)!=null?t:"\u25A2",colorMap:r=>this.colorMap(r),backgroundColorMap:r=>this.backgroundColorMap(r),getMacro:r=>tn(r,this.options.macros),atomIdsSettings:{seed:"random",groupNumbers:!1}}}};function Up(e){if(e&&(e.classList.remove("ML__highlight"),e.children))for(const t of e.children)Up(t)}function Nf(e,t){var r;e&&(!t||((r=e.dataset)==null?void 0:r.atomId)===t?(e.classList.add("ML__highlight"),e.children&&e.children.length>0&&[...e.children].forEach(n=>{n instanceof HTMLElement&&Nf(n)})):(e.classList.remove("ML__highlight"),e.children&&e.children.length>0&&[...e.children].forEach(n=>{n instanceof HTMLElement&&Nf(n,t)})))}function wv(e,t){var r;if(!Re())return;if(window.MathfieldElement.speechEngine!=="amazon"){console.error("MathLive 0.98.5: Use Amazon TTS Engine for synchronized highlighting"),typeof window.MathfieldElement.speakHook=="function"&&window.MathfieldElement.speakHook(t);return}if(!window.AWS){console.error("MathLive 0.98.5: AWS SDK not loaded. See https://www.npmjs.com/package/aws-sdk");return}const n=new window.AWS.Polly({apiVersion:"2016-06-10"}),i={OutputFormat:"json",VoiceId:(r=window.MathfieldElement.speechEngineVoice)!=null?r:"Joanna",Engine:"standard",Text:t,TextType:"ssml",SpeechMarkTypes:["ssml"]};Cs().readAloudElement=e,n.synthesizeSpeech(i,(a,s)=>{if(a){console.trace(`MathLive 0.98.5: \`polly.synthesizeSpeech()\` error: ${a}`);return}if(!(s!=null&&s.AudioStream)){console.log("polly.synthesizeSpeech():",s);return}const u=new TextDecoder("utf-8").decode(new Uint8Array(s.AudioStream));Cs().readAloudMarks=u.split(`
`).map(d=>d?JSON.parse(d):{}),Cs().readAloudTokens=[];for(const d of Cs().readAloudMarks)d.value&&Cs().readAloudTokens.push(d.value);Cs().readAloudCurrentMark="",i.OutputFormat="mp3",i.SpeechMarkTypes=[],n.synthesizeSpeech(i,(d,p)=>{if(d){console.trace(`MathLive 0.98.5: \`polly.synthesizeSpeech("${t}") error:${d}`);return}if(!(p!=null&&p.AudioStream))return;const h=new Uint8Array(p.AudioStream),S=new Blob([h.buffer],{type:"audio/mpeg"}),D=URL.createObjectURL(S),P=Cs();P.readAloudAudio?P.readAloudAudio.pause():(P.readAloudAudio=new Audio,P.readAloudAudio.addEventListener("ended",()=>{const O=P.readAloudMathfield;P.readAloudStatus="ended",document.body.dispatchEvent(new Event("read-aloud-status-change",{bubbles:!0,composed:!0})),O?(Gs(O),P.readAloudElement=null,P.readAloudMathfield=null,P.readAloudTokens=[],P.readAloudMarks=[],P.readAloudCurrentMark=""):Up(P.readAloudElement)}),P.readAloudAudio.addEventListener("timeupdate",()=>{let O="";const de=P.readAloudAudio.currentTime*1e3+100;for(const Ve of P.readAloudMarks)Ve.time<de&&(O=Ve.value);P.readAloudCurrentMark!==O&&(P.readAloudCurrentToken=O,O&&O===P.readAloudFinalToken?P.readAloudAudio.pause():(P.readAloudCurrentMark=O,Nf(P.readAloudElement,P.readAloudCurrentMark)))})),P.readAloudAudio.src=D,P.readAloudStatus="playing",document.body.dispatchEvent(new Event("read-aloud-status-change",{bubbles:!0,composed:!0})),P.readAloudAudio.play()})})}Re()||console.error('MathLive 0.98.5: this version of the MathLive library is for use in the browser. A subset of the API is available on the server side in the "mathlive-ssr" library. If using server side rendering (with React for example) you may want to do a dynamic import of the MathLive library inside a `useEffect()` call.');var Nr=new WeakMap,Sv=.5,Ms={letterShapeStyle:"mf.letterShapeStyle = ...",horizontalSpacingScale:'Removed. Use `"thinmuskip"`, `"medmuskip"`, and `"thickmuskip"` registers ',macros:"mf.macros = ...",registers:"mf.registers = ...",backgroundColorMap:"mf.backgroundColorMap = ...",colorMap:"mf.colorMap = ...",enablePopover:"mf.popoverPolicy = ...",mathModeSpace:"mf.mathModeSpace = ...",placeholderSymbol:"mf.placeholderSymbol = ...",readOnly:"mf.readOnly = ...",removeExtraneousParentheses:"mf.removeExtraneousParentheses = ...",scriptDepth:"mf.scriptDepth = ...",smartFence:"mf.smartFence = ...",smartMode:"mf.smartMode = ...",smartSuperscript:"mf.smartSuperscript = ...",inlineShortcutTimeout:"mf.inlineShortcutTimeout = ...",inlineShortcuts:"mf.inlineShortcuts = ...",keybindings:"mf.keybindings = ...",virtualKeyboardMode:"mf.mathVirtualKeyboardPolicy = ...",customVirtualKeyboardLayers:"mathVirtualKeyboard.layers = ...",customVirtualKeyboards:"mathVirtualKeyboard.layouts = ...",keypressSound:"mathVirtualKeyboard.keypressSound = ...",keypressVibration:"mathVirtualKeyboard.keypressVibration = ...",plonkSound:"mathVirtualKeyboard.plonkSound = ...",virtualKeyboardContainer:"mathVirtualKeyboard.container = ...",virtualKeyboardLayout:"mathVirtualKeyboard.alphabeticLayout = ...",virtualKeyboardTheme:"No longer supported",virtualKeyboardToggleGlyph:"No longer supported",virtualKeyboardToolbar:"mathVirtualKeyboard.editToolbar = ...",virtualKeyboards:"Use `mathVirtualKeyboard.layouts`",speechEngine:"`MathfieldElement.speechEngine`",speechEngineRate:"`MathfieldElement.speechEngineRate`",speechEngineVoice:"`MathfieldElement.speechEngineVoice`",textToSpeechMarkup:"`MathfieldElement.textToSpeechMarkup`",textToSpeechRules:"`MathfieldElement.textToSpeechRules`",textToSpeechRulesOptions:"`MathfieldElement.textToSpeechRulesOptions`",readAloudHook:"`MathfieldElement.readAloudHook`",speakHook:"`MathfieldElement.speakHook`",computeEngine:"`MathfieldElement.computeEngine`",fontsDirectory:"`MathfieldElement.fontsDirectory`",soundsDirectory:"`MathfieldElement.soundsDirectory`",createHTML:"`MathfieldElement.createHTML`",onExport:"`MathfieldElement.onExport`",onInlineShortcut:"`MathfieldElement.onInlineShortcut`",onScrollIntoView:"`MathfieldElement.onScrollIntoView`",locale:"MathfieldElement.locale = ...",strings:"MathfieldElement.strings = ...",decimalSeparator:"MathfieldElement.decimalSeparator = ...",fractionNavigationOrder:"MathfieldElement.fractionNavigationOrder = ..."},zi=class il extends HTMLElement{static get formAssociated(){return hc()}static get optionsAttributes(){return{"default-mode":"string","letter-shape-style":"string","min-font-scale":"number","popover-policy":"string","math-mode-space":"string","read-only":"boolean","remove-extraneous-parentheses":"on/off","smart-fence":"on/off","smart-mode":"on/off","smart-superscript":"on/off","inline-shortcut-timeout":"string","script-depth":"string",placeholder:"string","virtual-keyboard-target-origin":"string","math-virtual-keyboard-policy":"string"}}static get observedAttributes(){return[...Object.keys(this.optionsAttributes),"contenteditable","disabled","readonly","read-only"]}static get fontsDirectory(){return this._fontsDirectory}static set fontsDirectory(t){t!==this._fontsDirectory&&(this._fontsDirectory=t,um())}get fontsDirectory(){throw new Error("Use MathfieldElement.fontsDirectory instead")}set fontsDirectory(t){throw new Error("Use MathfieldElement.fontsDirectory instead")}static get soundsDirectory(){return this._soundsDirectory}static set soundsDirectory(t){this._soundsDirectory=t,this.audioBuffers={}}get soundsDirectory(){throw new Error("Use MathfieldElement.soundsDirectory instead")}set soundsDirectory(t){throw new Error("Use MathfieldElement.soundsDirectory instead")}static get keypressSound(){return this._keypressSound}static set keypressSound(t){var r,n,i;this.audioBuffers={},t===null?this._keypressSound={spacebar:null,return:null,delete:null,default:null}:typeof t=="string"?this._keypressSound={spacebar:t,return:t,delete:t,default:t}:typeof t=="object"&&"default"in t&&(this._keypressSound={spacebar:(r=t.spacebar)!=null?r:t.default,return:(n=t.return)!=null?n:t.default,delete:(i=t.delete)!=null?i:t.default,default:t.default})}static get plonkSound(){return this._plonkSound}static set plonkSound(t){this.audioBuffers={},this._plonkSound=t}static get audioContext(){return this._audioContext||(this._audioContext=new AudioContext),this._audioContext}static get speechEngine(){return this._speechEngine}static set speechEngine(t){this._speechEngine=t}static get speechEngineRate(){return this._speechEngineRate}static set speechEngineRate(t){this._speechEngineRate=t}static get speechEngineVoice(){return this._speechEngineVoice}static set speechEngineVoice(t){this._speechEngineVoice=t}static get textToSpeechMarkup(){return this._textToSpeechMarkup}static set textToSpeechMarkup(t){this._textToSpeechMarkup=t}static get textToSpeechRules(){return this._textToSpeechRules}static set textToSpeechRules(t){this._textToSpeechRules=t}static get textToSpeechRulesOptions(){return this._textToSpeechRulesOptions}static set textToSpeechRulesOptions(t){this._textToSpeechRulesOptions=t}static get locale(){return Se.locale}static set locale(t){t==="auto"&&(t=navigator.language.slice(0,5)),Se.locale=t}get locale(){throw new Error("Use MathfieldElement.locale instead")}set locale(t){throw new Error("Use MathfieldElement.locale instead")}static get strings(){return Se.strings}static set strings(t){Se.merge(t)}get strings(){throw new Error("Use MathfieldElement.strings instead")}set strings(t){throw new Error("Use MathfieldElement.strings instead")}static get decimalSeparator(){return this._decimalSeparator}static set decimalSeparator(t){this._decimalSeparator=t,this._computeEngine&&(this._computeEngine.latexOptions.decimalMarker=this.decimalSeparator===","?"{,}":".")}get decimalSeparator(){throw new Error("Use MathfieldElement.decimalSeparator instead")}set decimalSeparator(t){throw new Error("Use MathfieldElement.decimalSeparator instead")}static get computeEngine(){var t,r;if(this._computeEngine===void 0){const n=(t=window[Symbol.for("io.cortexjs.compute-engine")])==null?void 0:t.ComputeEngine;if(!n)return null;this._computeEngine=new n,this._computeEngine&&this.decimalSeparator===","&&(this._computeEngine.latexOptions.decimalMarker="{,}")}return(r=this._computeEngine)!=null?r:null}static set computeEngine(t){this._computeEngine=t}get computeEngine(){throw new Error("Use MathfieldElement.computeEngine instead")}set computeEngine(t){throw new Error("Use MathfieldElement.computeEngine instead")}static get isFunction(){return typeof this._isFunction!="function"?()=>!1:this._isFunction}static set isFunction(t){this._isFunction=t}static loadSound(t){return Es(this,null,function*(){delete this.audioBuffers[t];let r="";switch(t){case"keypress":r=this._keypressSound.default;break;case"return":r=this._keypressSound.return;break;case"spacebar":r=this._keypressSound.spacebar;break;case"delete":r=this._keypressSound.delete;break;case"plonk":r=this.plonkSound;break}if(typeof r!="string")return;r=r.trim();const n=this.soundsDirectory;if(!(n==null||n==="null"||r==="none"||r==="null"))try{const a=yield(yield fetch(yield qf(`${n}/${r}`))).arrayBuffer(),s=yield this.audioContext.decodeAudioData(a);this.audioBuffers[t]=s}catch(i){}})}static playSound(t){return Es(this,null,function*(){if((this.audioContext.state==="suspended"||this.audioContext.state==="interrupted")&&(yield this.audioContext.resume()),this.audioBuffers[t]||(yield this.loadSound(t)),!this.audioBuffers[t])return;const r=this.audioContext.createBufferSource();r.buffer=this.audioBuffers[t];const n=this.audioContext.createGain();n.gain.value=Sv,r.connect(n).connect(this.audioContext.destination),r.start()})}constructor(t){if(super(),t){const r=[];for(const n of Object.keys(t))if(Ms[n])if(Ms[n].startsWith("mf."))if(Ms[n].startsWith(`mf.${n}`))r.push(`Option \`${n}\` cannot be used as a constructor option. Use ${Ms[n]}`);else{const i=Ms[n].match(/([a-zA-Z]+) =/);r.push(`Option \`${n}\` has been renamed \`${i[1]}\``)}else r.push(`Option \`${n}\` cannot be used as a constructor option. Use ${Ms[n]}`);if(r.length>0){console.group("%cMathLive 0.98.5: %cInvalid Options","color:#12b; font-size: 1.1rem","color:#db1111; font-size: 1.1rem"),console.warn("Some of the options passed to `new MathfieldElement(...)` are invalid. \n          See https://cortexjs.io/mathlive/changelog/ for details.");for(const n of r)console.warn(n);console.groupEnd()}}if(hc()&&(this._internals=this.attachInternals(),this._internals.role="math",this._internals.ariaLabel="math input field",this._internals.ariaMultiLine="false"),this.attachShadow({mode:"open",delegatesFocus:!0}),this.shadowRoot&&"adoptedStyleSheets"in this.shadowRoot){this.shadowRoot.adoptedStyleSheets=[ko("core"),ko("mathfield"),ko("mathfield-element"),ko("ui"),ko("menu")],this.shadowRoot.appendChild(document.createElement("span"));const r=document.createElement("slot");r.style.display="none",this.shadowRoot.appendChild(r)}else this.shadowRoot.innerHTML="<style>"+es("core")+es("mathfield")+es("mathfield-element")+es("ui")+es("menu")+'</style><span></span><slot style="display:none"></slot>';t&&this._setOptions(t),this.shadowRoot.addEventListener("slotchange",()=>{var r;const n=this.shadowRoot.querySelector("slot:not([name])");this.value=(r=n==null?void 0:n.assignedNodes().map(i=>i.nodeType===3?i.textContent:"").join("").trim())!=null?r:""})}showMenu(t){var r,n;return(n=(r=this._mathfield)==null?void 0:r.showMenu(t))!=null?n:!1}get mathVirtualKeyboard(){throw new Error("The `mathVirtualKeyboard` property is not available on the MathfieldElement. Use `window.mathVirtualKeyboard` instead.")}onPointerDown(){window.addEventListener("pointerup",t=>{var r;t.target===this&&!((r=this._mathfield)!=null&&r.disabled)&&this.dispatchEvent(new MouseEvent("click",{altKey:t.altKey,button:t.button,buttons:t.buttons,clientX:t.clientX,clientY:t.clientY,ctrlKey:t.ctrlKey,metaKey:t.metaKey,movementX:t.movementX,movementY:t.movementY,relatedTarget:t.relatedTarget,screenX:t.screenX,screenY:t.screenY,shiftKey:t.shiftKey}))},{once:!0})}getPromptValue(t,r){var n,i;return(i=(n=this._mathfield)==null?void 0:n.getPromptValue(t,r))!=null?i:""}setPromptValue(t,r,n){var i;(i=this._mathfield)==null||i.setPromptValue(t,r,n)}getPromptRange(t){var r,n;return(n=(r=this._mathfield)==null?void 0:r.getPromptRange(t))!=null?n:null}getPrompts(t){var r,n;return(n=(r=this._mathfield)==null?void 0:r.getPrompts(t))!=null?n:[]}get form(){var t;return(t=this._internals)==null?void 0:t.form}get name(){var t;return(t=this.getAttribute("name"))!=null?t:""}get type(){return this.localName}get mode(){var t,r;return(r=(t=this._mathfield)==null?void 0:t.model.mode)!=null?r:this.defaultMode==="text"?"text":"math"}set mode(t){var r;(r=this._mathfield)==null||r.switchMode(t)}get expression(){if(this._mathfield)return window[Symbol.for("io.cortexjs.compute-engine")]?this._mathfield.expression:(console.error(`MathLive 0.98.5: The CortexJS Compute Engine library is not available.
        
        Load the library, for example with:
        
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Set the property directly on the mathfield instead.\n      See https://cortexjs.io/mathlive/changelog/ for details.");for(const r of Object.keys(t))Ms[r]&&console.warn(`\`mf.setOptions({${r}:...})\` -> ${Ms[r]}`);console.groupEnd(),this._setOptions(t)}executeCommand(t){var r,n;return(n=(r=this._mathfield)==null?void 0:r.executeCommand(t))!=null?n:!1}getValue(t,r,n){var i,a;if(this._mathfield)return this._mathfield.model.getValue(t,r,n);if(Nr.has(this)){let s,u,d;if(Ks(t)?([s,u]=t.ranges[0],d=r):Yo(t)?([s,u]=t,d=r):_o(t)&&_o(r)?(s=t,u=r,d=n):(s=0,u=-1,d=t),(d===void 0||d==="latex")&&s===0&&u===-1)return(a=(i=Nr.get(this).value)!=null?i:this.textContent)!=null?a:""}return""}setValue(t,r){if(this._mathfield&&t!==void 0){r!=null||(r={silenceNotifications:!0,mode:"math"}),this._mathfield.setValue(t,r);return}if(Nr.has(this)){const i=Nr.get(this).options;Nr.set(this,{value:t,selection:{ranges:[[-1,-1]],direction:"forward"},options:i,menuItems:void 0});return}const 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h=s.querySelector("span");h.style.pointerEvents="none"}s.host.addEventListener("focus",this,!0),s.host.addEventListener("blur",this,!0),hc()||(this.hasAttribute("role")||this.setAttribute("role","math"),this.hasAttribute("aria-label")||this.setAttribute("aria-label","math input field"),this.setAttribute("aria-multiline","false")),u&&!this.hasAttribute("contenteditable")&&this.setAttribute("contenteditable","true"),this.hasAttribute("tabindex")||this.setAttribute("tabindex","0");const d=s.querySelector("slot:not([name])");if(d)try{this._style=d.assignedElements().filter(h=>h.tagName.toLowerCase()==="style").map(h=>h.textContent).join("")}catch(h){console.error(h)}if(this._style){const h=document.createElement("style");h.textContent=this._style,s.appendChild(h)}let p="";if(this.hasAttribute("value")?p=this.getAttribute("value"):p=(t=d==null?void 0:d.assignedNodes().map(h=>h.nodeType===3?h.textContent:"").join("").trim())!=null?t:"",this._mathfield=new xv(s.querySelector(":host > 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smartFence(t){this._setOptions({smartFence:t})}get smartSuperscript(){return this._getOption("smartSuperscript")}set smartSuperscript(t){this._setOptions({smartSuperscript:t})}get scriptDepth(){return this._getOption("scriptDepth")}set scriptDepth(t){this._setOptions({scriptDepth:t})}get removeExtraneousParentheses(){return this._getOption("removeExtraneousParentheses")}set removeExtraneousParentheses(t){this._setOptions({removeExtraneousParentheses:t})}get mathModeSpace(){return this._getOption("mathModeSpace")}set mathModeSpace(t){this._setOptions({mathModeSpace:t})}get placeholderSymbol(){return this._getOption("placeholderSymbol")}set placeholderSymbol(t){this._setOptions({placeholderSymbol:t})}get popoverPolicy(){return this._getOption("popoverPolicy")}set popoverPolicy(t){this._setOptions({popoverPolicy:t})}get environmentPopoverPolicy(){return this._getOption("environmentPopoverPolicy")}set environmentPopoverPolicy(t){this._setOptions({environmentPopoverPolicy:t})}get 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