@font-face{font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2) format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff) format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf) format("truetype")}@font-face{font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf) format("truetype")}@font-face{font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf) format("truetype")}@font-face{font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff) format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf) format("truetype")}@font-face{font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff) format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf) format("truetype")}@font-face{font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2) format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff) format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf) format("truetype")}@font-face{font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2) format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff) format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf) format("truetype")}@font-face{font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2) format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff) format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf) format("truetype")}@font-face{font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2) format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff) format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf) format("truetype")}@font-face{font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2) format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff) format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf) format("truetype")}@font-face{font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2) format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff) format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf) format("truetype")}@font-face{font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff) format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf) format("truetype")}@font-face{font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff) format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf) format("truetype")}@font-face{font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff) format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf) format("truetype")}@font-face{font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2) format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff) format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf) format("truetype")}@font-face{font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2) format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff) format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf) format("truetype")}@font-face{font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2) format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff) format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf) format("truetype")}@font-face{font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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) format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff) format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf) format("truetype")}@font-face{font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2) format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff) format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf) format("truetype")}@font-face{font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2) format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff) format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.22"}.katex .katex-mathml{clip:rect(1px,1px,1px,1px);border:0;height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{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;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}.calculator-toggle{position:fixed;right:18px;bottom:18px;width:44px;height:44px;display:grid;place-items:center;padding:9px;border-radius:12px;z-index:30;box-shadow:0 3px 14px #17263822}.calculator-toggle svg{width:23px;height:23px}.calculator-panel{position:fixed;right:18px;bottom:74px;width:310px;max-width:calc(100vw - 24px);max-height:calc(100dvh - 100px);overflow:auto;border:1px solid #667482;border-radius:16px;background:#202b35;color:#f1f5f8;box-shadow:0 12px 48px #0005;padding:16px;z-index:29;font:14px/1.4 system-ui,sans-serif}.calculator-header{display:flex;align-items:center;justify-content:space-between}.calculator-header strong{font-size:15px;letter-spacing:.5px}.calculator-panel .calculator-close{padding:0 6px;min-height:28px;background:transparent;color:#d8e1e9;border:0;font-size:22px}.calculator-topic{font-size:11px;color:#c3ced9;margin:0 0 12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.calculator-screen{background:#120e0b;border:1px solid #77634f;border-radius:8px;padding:10px 10px 12px;color:#ffc5a6}.calculator-flags{font-size:9px;min-height:14px;letter-spacing:1px;color:#d8b59d}.calculator-entry{font:13px/1.7 ui-monospace,monospace;white-space:nowrap;overflow:auto;min-height:24px;scrollbar-width:thin}.calculator-digits{height:48px;display:flex;justify-content:end;margin-top:6px}.calculator-digits svg{max-width:100%;height:48px;min-width:24px}.led-on{fill:#ffc5a6;color:#ffc5a6}.led-off{fill:#2c1d15}.calculator-error{color:#ffd3c3;font-size:12px;margin:7px 0;min-height:0}.calculator-error:empty{display:none}.calculator-functions{display:flex;gap:6px;flex-wrap:wrap;margin:12px 0 8px}.calculator-panel .calculator-key{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;min-width:47px;min-height:41px;padding:5px 7px;border:1px solid #65717b;border-radius:7px;background:#35424f;color:#f5f8fc;font:15px/1.2 system-ui,sans-serif}.calculator-secondary{font-size:9px;color:#a9d9ff;line-height:1.1}.calculator-numbers{display:grid;grid-template-columns:repeat(4,1fr);gap:7px}.calculator-numbers .calculator-key{min-height:45px;background:#dce3eb;color:#142332;font-size:19px}.calculator-numbers .calculator-secondary{color:#235478}.calculator-panel .calculator-key[data-key=enter]{font-size:13px;background:#98bded;color:#142332;font-weight:700}.calculator-key[data-key="2nd"][aria-pressed=true]{background:#64537d}.calculator-trace{font:10px/1.6 ui-monospace,monospace;color:#c2cfdb;margin:10px 0 0;overflow-wrap:anywhere}.calculator-key-sequence{display:flex;gap:5px;flex-wrap:wrap}.calculator-tutorial{margin:22px 0 8px;padding:14px;border:1px solid #cdd4db;border-radius:10px;text-align:left;background:#f8fafc}.calculator-tutorial h4{font-size:13px;margin:0 0 10px}.calculator-key-chip{display:inline-grid;place-items:center;min-width:27px;height:29px;padding:3px 6px;border:1px solid #bec8d3;border-radius:5px;color:#455365;background:#fff;font:12px/1 ui-monospace,monospace}.calculator-tutorial-controls{display:flex;gap:6px;margin-top:10px}.calculator-tutorial-caption{font-size:12px;line-height:1.5;margin:7px 0 0;color:#596570}.calculator-key-chip.is-done{opacity:.6}.calculator-key-chip.is-current{outline:2px solid currentColor;outline-offset:2px}.calculator-panel .calculator-key.is-tutorial-key[data-category=number],.calculator-key-chip.is-current[data-category=number]{background:#ffd796!important;color:#3a2605!important;border-color:#ffd796!important}.calculator-panel .calculator-key.is-tutorial-key[data-category=operation],.calculator-key-chip.is-current[data-category=operation]{background:#9de2da!important;color:#123c37!important;border-color:#9de2da!important}.calculator-panel .calculator-key.is-tutorial-key[data-category=navigation],.calculator-key-chip.is-current[data-category=navigation]{background:#d7c4ff!important;color:#322148!important;border-color:#d7c4ff!important}:root[data-theme=dark] #calculator-panel .calculator-key{background:#35424f!important;color:#f5f8fc!important;border-color:#65717b!important}:root[data-theme=dark] #calculator-panel .calculator-numbers .calculator-key{background:#dce3eb!important;color:#142332!important}:root[data-theme=dark] #calculator-panel .calculator-close{background:transparent!important;color:#d8e1e9!important}:root[data-theme=dark] .calculator-tutorial{background:#222d37;border-color:#52606d}:root[data-theme=dark] .calculator-key-chip{background:#35424f;color:#dce6f0;border-color:#65717b}:root[data-theme=dark] .calculator-tutorial-caption{color:#b5c1cc}:root[data-theme=dark] #calculator-panel .calculator-key.is-tutorial-key[data-category=number]{background:#ffd796!important;color:#3a2605!important}:root[data-theme=dark] #calculator-panel .calculator-key.is-tutorial-key[data-category=operation]{background:#9de2da!important;color:#123c37!important}:root[data-theme=dark] #calculator-panel .calculator-key.is-tutorial-key[data-category=navigation]{background:#d7c4ff!important;color:#322148!important}@media print{.calculator-panel,.calculator-toggle,.calculator-tutorial{display:none!important}}@media(max-width:560px){.calculator-panel{right:12px;bottom:70px}.calculator-toggle{right:12px;bottom:12px}}@media(min-width:1100px){body.calculator-open .curriculum-page{margin-right:334px;margin-left:0;max-width:calc(100% - 334px)}body.calculator-open .curriculum-layout{grid-template-columns:240px minmax(0,1fr);gap:24px}}.calculator-methods{display:inline-flex;flex-wrap:wrap;gap:0;margin-top:18px;border:1px solid #84909b;border-radius:7px;overflow:hidden}.calculator-methods button{border:0;border-radius:0;border-right:1px solid #cdd4db;font-size:12px}.calculator-methods button:last-child{border-right:0}.calculator-methods button[aria-pressed=true]{background:#2459a6;color:#fff}.calculator-method-group>.calculator-tutorial{margin-top:8px}:root[data-theme=dark] .calculator-methods button[aria-pressed=true]{background:#99c5ff!important;color:#14283f!important}.calculator-key.is-tutorial-key .calculator-secondary{color:inherit!important}:root{font-family:system-ui,sans-serif;color:#202b35;background:#fff;font-synthesis:none}*{box-sizing:border-box}body{margin:0}main{max-width:700px;margin:48px auto;padding:0 24px}h1{font-size:22px;font-weight:600;margin:0 0 36px}section{margin-bottom:40px;padding:0 0 32px;border-bottom:1px solid #e6e9ed}.step{display:grid;grid-template-columns:28px minmax(0,1fr);align-items:center;column-gap:12px;padding:10px 0 16px}.math,.equals{font-size:25px;overflow:visible}.katex-display{margin:0;text-align:left;overflow:visible}.katex-display>.katex{white-space:normal;text-align:left}.caption{font-size:14px;line-height:1.6;color:#596570;margin:14px 0 0 40px;max-width:520px;min-height:3.2em}.answer .math{color:#23734a}.controls{display:flex;gap:10px;margin-top:12px}button{font:inherit;font-size:14px;border:1px solid #cdd4db;border-radius:6px;background:#fff;color:#263440;padding:8px 14px;cursor:pointer}button:hover{background:#f4f6f8}button:disabled{color:#65717b;background:#f6f7f8;cursor:default}button:focus-visible{outline:3px solid #2459a6;outline-offset:3px}[hidden]{display:none!important}nav{margin-bottom:24px;font-size:14px}a{color:#2459a6;text-underline-offset:3px}.reference h1{margin-bottom:16px}.reference h2{font-size:19px;margin:28px 0 14px}.reference h3{font-size:15px;margin-top:24px}.reference p,.reference li{font-size:14px;line-height:1.7;color:#596570}.reference ol{padding-left:22px}.reference li{margin-bottom:10px}.reference-step{margin:20px 0}.reference-caption{margin:0 0 8px 40px}.reference details{margin-left:40px;font-size:12px;color:#65717b}.reference summary{cursor:pointer}.reference code{display:block;overflow-wrap:anywhere;white-space:pre-wrap;margin-top:8px}@media(max-width:480px){main{margin-top:28px;padding:0 18px}.math,.equals{font-size:22px}}.writing p{font-size:14px;line-height:1.6}.muted{color:#65717b}.ink-grid{display:grid;grid-template-columns:repeat(9,minmax(0,1fr));gap:6px;margin-top:24px}.ink-cell{border:1px solid #cdd4db;border-radius:6px;overflow:hidden}.ink-cell canvas{display:block;width:100%;height:auto;touch-action:none;background:#fafbfc;cursor:crosshair}.ink-cell span{display:block;text-align:center;font-size:11px;color:#65717b;padding:3px;border-top:1px solid #e6e9ed}.writing .controls{flex-wrap:wrap}.writing label{display:block;margin:24px 0 8px;font-size:14px}.review-row{display:flex;gap:8px}.review-row input{font:inherit;width:100%;min-width:0;padding:10px;border:1px solid #cdd4db;border-radius:6px}#error{color:#a33f2b}.guide{margin:20px 0;font-size:14px}.guide summary{cursor:pointer}#symbols{display:flex;flex-wrap:wrap;gap:8px}#symbols>div{display:flex;flex-direction:column;align-items:center;border:1px solid #e6e9ed;border-radius:6px;padding:4px}#symbols canvas{width:42px;height:70px}#solution{margin-top:24px}@media(max-width:600px){.ink-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.ink-cell canvas{max-height:150px}}#formula-pad{display:block;width:100%;height:auto;min-height:180px;touch-action:none;border:1px solid #cdd4db;border-radius:8px;background:#fafbfc;cursor:crosshair;margin-top:20px}#recognized-preview{min-height:48px;padding:12px 0}.writing .guide p{color:#65717b}.ink-tools button[aria-pressed=true]{background:#e7effa;border-color:#2459a6;color:#2459a6}.writing .live-toggle{display:flex;align-items:center;gap:6px;margin:0 0 0 auto;font-size:13px}.live-toggle input{accent-color:#2459a6}#formula-pad.erasing{cursor:cell}.drawing-box{border:1px solid #dce1e6;border-radius:12px;background:#fafbfc;overflow:hidden}.ink-toolbar{display:flex;align-items:center;gap:4px;padding:10px 12px}.icon-tool{display:grid;place-items:center;width:36px;height:36px;padding:8px;border:0;background:transparent;border-radius:7px;color:#65717b}.icon-tool svg{width:21px;height:21px}.icon-tool:hover{background:#edf0f4}.icon-tool[aria-pressed=true]{background:#e4ecf7;color:#2459a6}.drawing-box #formula-pad{border:0;border-radius:0;margin:0;background:transparent}.ink-toolbar .live-toggle{margin-left:auto;font-size:12px;color:#65717b}.read-row{display:flex;align-items:center;gap:12px;min-height:32px;margin:8px 0;font-size:12px;color:#65717b}.writing #review{display:flex;align-items:center;gap:18px;min-height:60px;margin-top:6px}.writing #recognized-preview{flex:1;min-width:0;margin:0;padding:8px 0;font-size:22px}.formula-choices{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:28px}.formula-choices button{min-height:44px}.formula-choices .katex-display{font-size:16px}.formula-choices [aria-pressed=true]{border-color:#2459a6;background:#edf3fb}#formula-preview{font-size:28px;min-height:64px;padding:8px 0}#latex-panel{font-size:13px;color:#65717b;margin:12px 0 24px}#latex-panel summary{cursor:pointer;width:fit-content}#edit-formula{margin-top:12px}#edit-formula label{display:block;margin:8px 0}#edit-formula input{font:inherit;width:100%;min-width:0;padding:10px;border:1px solid #cdd4db;border-radius:6px}#lesson-error{font-size:13px;color:#a33f2b}#write-modal{width:min(740px,calc(100% - 32px));max-height:90vh;border:1px solid #dce1e6;border-radius:16px;padding:24px;color:#202b35;overflow:auto}#write-modal::backdrop{background:#17263866}.modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.modal-header h2{font-size:20px;margin:0}.modal-header button{border:0;font-size:22px;padding:4px 10px}body:has(#write-modal[open]){overflow:hidden}.debug-toggle{position:fixed;right:10px;top:12px;z-index:21;width:28px;height:28px;padding:0;font-size:16px;border-color:#e1e5e9;color:#84909b;background:#fffd}#debug-panel{position:fixed;right:0;top:0;bottom:0;width:min(390px,90vw);z-index:20;background:#f6f8fa;border-left:1px solid #dce1e6;padding:52px 16px 16px;display:flex;flex-direction:column;font:12px system-ui,sans-serif;color:#344454;box-shadow:-8px 0 24px #1225380a}.debug-head{display:flex;align-items:center;gap:10px}.debug-head strong{margin-right:auto}.debug-head button{font-size:12px;padding:4px 8px}#debug-panel>p{font-size:11px;color:#65717b}#debug-panel pre{flex:1;min-height:0;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere;font:11px/1.6 ui-monospace,monospace}.debug-open .landing{margin-right:410px;margin-left:auto}@media(max-width:1050px){.debug-open .landing{margin-left:auto;margin-right:auto}}@media(max-width:480px){#write-modal{padding:16px}.formula-choices{gap:8px}.formula-choices button{font-size:12px}}@media(min-width:1051px){.debug-open #write-modal[open]{margin-right:410px;margin-left:auto;width:min(740px,calc(100vw - 450px))}}.app-brand{display:flex;align-items:center;gap:16px;margin:0 0 28px;font-size:34px;line-height:1.15;font-weight:700;letter-spacing:-.01em;color:#202b35}.app-brand img{display:block;width:104px;height:104px;object-fit:contain}@media(max-width:480px){.app-brand{font-size:26px;gap:12px}.app-brand img{width:76px;height:76px}}.long-division-demo #division-board{margin:34px 0;min-height:220px}.ld-grid{display:grid;width:max-content;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:30px;line-height:1.7;text-align:center;row-gap:4px}.ld-grid>span{display:block;min-height:1.7em}.ld-divisor{text-align:right;padding-right:4px}.ld-dividend{border-top:2px solid #263440}.ld-bracket{border-left:2px solid #263440}.ld-quotient{color:#2459a6;font-weight:600}.ld-minus{color:#a34b13}.ld-rule{border-top:1px solid #73808b}.division-caption{min-height:3em;font-size:15px;line-height:1.6;color:#596570}.division-answer{font-size:22px;color:#23734a;font-weight:600;min-height:1.5em}@media(max-width:480px){.ld-grid{font-size:25px}}.division-steps{margin:24px 0 32px;min-height:220px}.lm-grid{display:grid;width:max-content;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:30px;line-height:1.7;text-align:center;row-gap:4px}.lm-grid>span{display:block;min-height:1.7em}.lm-carry{font-size:16px;color:#a34b13;align-self:end;min-height:1.5em!important}.lm-operator{color:#a34b13}.lm-bottom-rule{border-bottom:2px solid #263440}.lm-top-rule{border-top:2px solid #263440}.lm-active{color:#2459a6}.lm-answer{color:#23734a;font-weight:600}@media(max-width:480px){.lm-grid{font-size:25px}}.equation-line{display:grid;grid-template-columns:minmax(0,190px) 34px minmax(0,1fr);align-items:center;column-gap:0;padding:10px 0 16px;font-size:25px}.equation-line>div{min-width:0}.equation-line .equation-left .katex-display,.equation-line .equation-left .katex-display>.katex{text-align:right}.equation-line .equation-equals .katex-display,.equation-line .equation-equals .katex-display>.katex{text-align:center}.equation-message{grid-column:1/-1}.equation-line.answer{color:#23734a}@media(max-width:480px){.equation-line{grid-template-columns:minmax(0,45%) 28px minmax(0,1fr);font-size:20px}}.ld-grid,.lm-grid{font-family:KaTeX_Main,Times New Roman,serif;font-size:25px;color:#202b35}.ld-grid .katex-display,.lm-grid .katex-display{margin:0}.ld-grid .katex-display>.katex,.lm-grid .katex-display>.katex{text-align:center}.ld-minus,.lm-operator{color:inherit}.ld-active,.ld-quotient,.lm-active{color:#2459a6}.ld-grid.is-complete .ld-quotient,.ld-grid.is-complete .ld-active,.lm-answer{color:#23734a}.lm-carry{color:#a34b13}@media(max-width:480px){.ld-grid,.lm-grid{font-size:22px}}.solution-stage{width:min(100%,440px);margin-inline:auto}.ld-grid,.lm-grid{line-height:1.25;row-gap:2px}.ld-grid>span,.lm-grid>span{min-height:1.3em}.ld-grid>.ld-rule,.lm-grid>.lm-top-rule,.lm-grid>.lm-bottom-rule{min-height:0}.lm-grid>.lm-carry{min-height:1em!important;line-height:1}.division-steps{margin:12px 0 18px;min-height:0}.long-division-demo #division-board{margin:24px 0;min-height:0}.landing{text-align:center}.landing .app-brand{justify-content:center}.slide-card{width:min(100%,520px);margin:0 auto 24px;padding:16px 20px 18px;border:1px solid #e1e6eb;border-radius:12px;background:transparent;text-align:center}.slide-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:10px}.slide-topic{font-size:12px;letter-spacing:1.5px;text-transform:uppercase;font-weight:600;color:#2459a6}.slide-count{font-size:12px;color:#65717b;font-variant-numeric:tabular-nums}.slide-card .solution-stage{min-height:340px;display:flex;flex-direction:column;align-items:center;justify-content:flex-start}.slide-card #formula-preview{text-align:center}.slide-card .steps{display:flex;flex-direction:column;align-items:center;width:100%}.slide-card .step{justify-content:center;padding:2px 0 4px}.slide-card .caption{margin:14px auto 0;text-align:center;color:#596570}.slide-progress{height:3px;border-radius:2px;background:#e7effa;overflow:hidden;margin:12px 0}.slide-progress span{display:block;height:100%;width:0;background:#2459a6}.slide-controls{display:flex;justify-content:center;gap:5px}.slide-controls .playback-icon:disabled{opacity:.4;background:transparent;color:#596570}.slide-dots{display:flex;justify-content:center;gap:8px;margin-top:10px}.slide-dots button{width:10px;height:10px;min-width:10px;min-height:10px;padding:0;border-radius:50%;border:1px solid #cdd4db;background:#fff}.slide-dots button[aria-selected=true]{background:#2459a6;border-color:#2459a6}.own-formula{width:min(100%,520px);margin:0 auto}.own-formula label{display:block;font-size:13px;color:#596570;margin-bottom:6px}.own-formula div{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}.own-formula input{flex:1 1 200px;min-height:40px;padding:0 12px;font:inherit;border:1px solid #cdd4db;border-radius:6px;color:#202b35;background:#fff;text-align:left}.own-formula input:focus-visible{outline:3px solid #2459a6;outline-offset:3px}.own-formula button{min-height:40px}:root[data-theme=dark] .slide-card{border-color:#52606d}:root[data-theme=dark] .slide-topic{color:#99c5ff}:root[data-theme=dark] .slide-progress{background:#354e69}:root[data-theme=dark] .slide-progress span{background:#99c5ff}:root[data-theme=dark] .slide-dots button[aria-selected=true]{background:#99c5ff!important;border-color:#99c5ff!important}@media(max-width:480px){.slide-card{padding:12px 12px 16px}.slide-card .solution-stage{min-height:300px}}.profile-badges{display:flex;flex-wrap:wrap;gap:8px}.profile-badge{display:inline-flex;align-items:center;gap:8px;padding:4px 16px;border-radius:999px;min-height:36px}.profile-badge[aria-pressed=true]{border-color:#2459a6;background:#edf3fb;color:#2459a6}.stat-dot{flex:none;display:inline-block;width:14px;height:14px;border-radius:50%;box-sizing:border-box}.stat-dot.good{background:#2e8b57}.stat-dot.fair{background:#e0a31a}.stat-dot.weak{background:#d94b4b}.stat-dot.none{border:2px dashed #9aa5b0;background:transparent}html[data-theme=dark] .stat-dot.none{border-color:#7b8794}.stat-dot.na{border:1.5px dashed #9aa5b0;background:transparent;opacity:.45}html[data-theme=dark] .stat-dot.na{border-color:#7b8794}.info-tip{position:relative;display:inline-grid}.info-icon{display:grid;place-items:center;width:22px;height:22px;border:1.5px solid #65717b;border-radius:50%;font:italic 700 13px/1 Georgia,serif;color:#65717b;cursor:help}.info-bubble{position:absolute;right:0;top:30px;width:240px;padding:10px 12px;border:1px solid #cdd4db;border-radius:8px;background:#fff;color:#263440;font-size:13px;line-height:1.5;box-shadow:0 6px 18px #17263826;opacity:0;visibility:hidden;transition:opacity .15s;z-index:5}.info-tip:hover .info-bubble,.info-tip:focus-within .info-bubble,.info-tip.is-warning .info-bubble{opacity:1;visibility:visible}html[data-theme=dark] .info-bubble{background:#222d37;color:#e1e7ed;border-color:#52606d}html[data-theme=dark] .info-icon{border-color:#b5c1cc;color:#b5c1cc}.slide-card #lesson-error:empty{display:none}.slide-card #lesson{margin:0;padding:0;border-bottom:0}.slide-card #formula-preview{padding:0}.slide-card .solution-stage{min-height:310px}.slide-card .caption{min-height:0;margin-top:8px}.slide-card .equation-line{width:100%;grid-template-columns:minmax(0,1fr) 34px minmax(0,1fr)}.slide-card.fraction-example #formula-preview{padding-bottom:14px}.slide-card.fraction-example .step{padding-top:14px;padding-bottom:16px}.slide-card.fraction-example .solution-stage{min-height:390px}#activity-demo{width:100%}.slide-card.visual-example .practice-card{border:0;padding:0;margin:0;text-align:left}.slide-card.visual-example .practice-card>.practice-toolbar,.slide-card.visual-example .practice-card>.controls,.slide-card.visual-example .practice-attempt{display:none!important}.slide-card.visual-example .practice-prompt{font-size:21px;line-height:1.5;margin:0 0 12px}.slide-card.visual-example .practice-visual{margin:10px 0}.slide-card.visual-example .practice-visual svg{max-height:185px}.slide-card.visual-example .practice-caption{font-size:13px;line-height:1.6;margin-top:10px}.slide-card.visual-example .practice-work .math{font-size:22px}.curriculum-page{max-width:1240px;margin:32px auto;padding:0 28px}.curriculum-page nav{margin-bottom:24px}.curriculum-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}.curriculum-header h1{font-size:30px;margin:5px 0 0}.curriculum-eyebrow{font-size:10px;letter-spacing:1.5px;color:#65717b;margin:0}.curriculum-reference{font-size:12px;background:#f1f5fa;color:#596b7e;border-radius:20px;padding:7px 12px}.curriculum-layout{display:grid;grid-template-columns:310px minmax(0,1fr);gap:38px;align-items:start}.curriculum-sidebar{position:sticky;top:20px;max-height:calc(100dvh - 40px);overflow-y:auto;border:1px solid #e1e6eb;border-radius:10px;background:#fafbfc;padding:14px}.curriculum-sidebar summary{cursor:pointer;font-size:13px;line-height:1.5;padding:8px 0}.curriculum-sidebar #curriculum-browser>summary{font-weight:600}.curriculum-sidebar input{width:100%;padding:9px 10px;border:1px solid #dce1e6;border-radius:6px;background:#fff;font:inherit;font-size:13px;margin:8px 0 14px}.curriculum-sidebar nav{margin:0}.curriculum-node{display:flex;gap:8px;align-items:baseline;text-align:left;width:100%;border:1px solid transparent;background:transparent;padding:9px 8px;font-size:12px;line-height:1.5;border-radius:5px}.curriculum-node:hover{background:#eef2f6}.curriculum-node.selected{background:#e7effa;border-color:#c8d9ed;color:#2459a6}.curriculum-code{font-size:10px;white-space:nowrap;color:#65717b;font-weight:600}.curriculum-node small{margin-left:auto;font-size:10px;white-space:nowrap;color:#65717b}.curriculum-topic{margin-left:12px;border-left:1px solid #e1e6eb;padding-left:10px}.curriculum-topic .curriculum-node{margin-left:0}.overview-node{font-size:11px;color:#65717b}.curriculum-branch{margin-top:8px}.grade-node{font-weight:600}.curriculum-breadcrumb{font-size:11px;line-height:1.7;color:#75818c;margin:0 0 22px}.expectation-tag{display:inline-block;font-size:12px;font-weight:600;color:#2459a6;background:#edf3fb;padding:5px 8px;border-radius:5px;margin-bottom:12px}#curriculum-detail h2{font-size:27px;line-height:1.25;margin:0 0 16px}#curriculum-detail h3{font-size:15px;margin:0 0 12px}#curriculum-detail p{font-size:14px;line-height:1.75;color:#596570}.curriculum-count{font-size:12px!important}.curriculum-children{display:grid;gap:10px;margin:22px 0}.curriculum-card{display:flex;align-items:baseline;gap:12px;text-align:left;padding:15px 16px;line-height:1.5;border-color:#e1e6eb;border-radius:8px;font-size:14px}.curriculum-card:hover{border-color:#9bb6d4;background:#f7faff}.curriculum-card small{font-size:11px;margin-left:auto;white-space:nowrap;color:#75818c}.curriculum-example{border-left:3px solid #c0d5eb;background:#f7faff;padding:18px 20px;margin:26px 0}.curriculum-example p{margin-bottom:0}.curriculum-note{font-size:12px!important;color:#75818c!important}.curriculum-provenance{border-top:1px solid #e6e9ed;padding-top:24px;margin-top:34px;font-size:12px}.curriculum-provenance p{font-size:12px!important}.curriculum-provenance li{margin:9px 0}.curriculum-sequence{margin-top:26px;padding:16px;border:1px solid #e1e6eb;border-radius:8px}.curriculum-sequence summary{cursor:pointer;font-size:14px;font-weight:600}.curriculum-sequence li{padding-left:5px;margin-top:18px;font-size:13px}.curriculum-sequence li p{margin-top:3px;font-size:13px!important}#search-status{font-size:11px;color:#65717b}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}button:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid #2459a6;outline-offset:3px}@media(max-width:760px){.curriculum-page{margin-top:24px;padding:0 18px}.curriculum-layout{grid-template-columns:1fr;gap:26px}.curriculum-sidebar{position:static;max-height:60vh}.curriculum-header{gap:12px}.curriculum-header h1{font-size:25px}.curriculum-reference{font-size:10px}#curriculum-detail h2{font-size:24px}.curriculum-card{flex-wrap:wrap}.curriculum-card small{margin-left:0}}.curriculum-modes{display:flex;gap:4px;padding:4px;border:1px solid #e1e6eb;border-radius:9px;flex-shrink:0}.curriculum-modes button{border:0;background:transparent;font-size:12px}.curriculum-modes button[aria-pressed=true]{background:#e7effa;color:#2459a6}.learner-skill{margin:26px 0}.learner-skill>h3{margin-bottom:18px!important}.practice-card{padding:18px 0 24px;margin:0 0 20px;border-bottom:1px solid #e6e9ed}.practice-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:22px}.practice-toolbar h3{margin:0!important;font-weight:500;color:#596570}.practice-refresh{font-size:22px;padding:2px 10px;border:0}.practice-question{padding-left:40px;margin:12px 0 20px}.practice-work{padding:0}.practice-caption{margin:14px 0 0 40px;min-height:1.75em}.practice-card .controls{margin-left:40px}.practice-card .ld-grid,.practice-card .lm-grid{margin:20px 0}.learner-example{margin:0}.curriculum-page[data-view=learner]>.curriculum-layout .overview-node{display:none}.curriculum-page[data-view=learner] .curriculum-card .curriculum-code{display:none}.practice-card .math,.practice-card .equation-line{font-size:23px}@media(max-width:760px){.curriculum-header{flex-wrap:wrap}.curriculum-modes{margin-top:8px}.practice-card .math{font-size:20px}.practice-question{padding-left:30px}.practice-card .controls,.practice-caption{margin-left:30px}}.practice-prompt{max-width:65ch}.worked-step{margin:18px 0}.worked-step>.math{padding-left:40px}.practice-visual{margin:20px 0;max-width:560px;overflow-wrap:anywhere}.practice-visual svg{display:block;width:100%;height:auto;max-height:320px}.practice-visual figcaption{font-size:12px;line-height:1.6;color:#65717b;margin-top:8px}.practice-visual table{width:100%;border-collapse:collapse;font-size:13px;text-align:left}.practice-visual th,.practice-visual td{border-bottom:1px solid #e1e6eb;padding:9px 8px}.practice-visual th{background:#f4f7fa;font-weight:500}.practice-visual pre{font:13px/1.8 ui-monospace,monospace;white-space:pre-wrap;background:#f4f7fa;padding:16px;border-radius:7px}.practice-attempt,.practice-builder{margin:16px 0;font-size:13px}.practice-attempt summary,.practice-builder summary{cursor:pointer;color:#2459a6}.practice-attempt form,.practice-builder form{display:flex;align-items:end;flex-wrap:wrap;gap:12px;margin:14px 0}.practice-attempt label,.practice-builder label,.practice-card textarea{display:block}.practice-attempt input,.practice-attempt select,.practice-builder input,.practice-builder select,.practice-card textarea{font:inherit;max-width:100%;padding:8px;border:1px solid #cdd4db;border-radius:6px;margin:6px 0}.practice-builder input[type=number]{width:100px}.practice-card textarea{width:100%;min-height:80px}.sample-infographic{display:grid;gap:8px;background:#edf3fb;padding:20px;border-radius:10px}.sample-infographic strong{font-size:20px;color:#2459a6}.unknown-groups{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.unknown-groups span{padding:10px 18px;background:#edf3fb;border:1px solid #c8d9ed;border-radius:4px}.practice-work:empty{display:none}.practice-card .practice-caption:empty{min-height:0;margin-top:0}@media(max-width:480px){.practice-visual th,.practice-visual td{padding:7px 4px;font-size:11px}.worked-step>.math{padding-left:0;font-size:18px!important}}.practice-card{--question-math-size:23px}#curriculum-detail .practice-prompt{font-family:KaTeX_Main,Times New Roman,serif;font-size:calc(var(--question-math-size)*1.21);font-weight:400;line-height:1.55;color:#202b35;max-width:52ch;margin:16px 0 24px;overflow-wrap:break-word}.practice-card .practice-question{font-size:var(--question-math-size)}@media(max-width:760px){.practice-card{--question-math-size:20px}}.curriculum-grade{display:flex;align-items:center;gap:6px;margin-top:12px;font-size:13px;color:#596570}.curriculum-grade select{font:inherit;padding:5px 20px 5px 8px;border:1px solid #cdd4db;border-radius:6px;background:#fff;color:#202b35}.verification-stage{border-top:1px dashed #cdd4db;margin-top:22px;padding-top:16px}.verification-stage h4{font:500 13px system-ui,sans-serif;color:#596570;margin:0 0 16px}.verification-failed .math{color:#a33f2b!important}.playback-icon{display:inline-grid;place-items:center;width:38px;height:36px;padding:8px;border:0;background:transparent;color:#596570;border-radius:6px}.playback-icon:hover{background:#edf3fb;color:#2459a6}.playback-icon svg{display:block;width:21px;height:21px}.practice-card .controls{gap:5px}.curriculum-detail-heading{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:16px}.curriculum-detail-heading h2{margin-bottom:0!important}.curriculum-detail-heading button{flex-shrink:0;align-self:center}.curriculum-profile{display:grid;gap:8px;margin:0 0 24px;padding:14px 16px;border:1px solid #e1e6eb;border-radius:10px}.curriculum-profile .profile-label{font-size:12px;color:#596570}.profile-legend{display:flex;flex-wrap:wrap;align-items:center;gap:6px 16px;margin:2px 0 0;font-size:12px;color:#596570}.profile-legend>span{display:inline-flex;align-items:center;gap:6px}.profile-legend small{font-size:12px;color:#75818c}.curriculum-node .stat-dot,.curriculum-card .stat-dot{width:11px;height:11px;align-self:center}.curriculum-node .stat-dot.none,.curriculum-card .stat-dot.none{border-width:1.5px}.curriculum-stat{display:flex;align-items:center;gap:8px;font-size:13px!important;margin:-6px 0 14px!important}html[data-theme=dark] :is(.profile-legend,.curriculum-profile .profile-label,.profile-legend small){color:#b5c1cc}html[data-theme=dark] .curriculum-profile{border-color:#52606d}.curriculum-sidebar summary .stat-dot{width:11px;height:11px;margin-right:8px;vertical-align:-1px}.curriculum-sidebar summary .stat-dot.none{border-width:1.5px}.curriculum-header{align-items:flex-end;flex-wrap:wrap;gap:12px 24px;margin-bottom:18px}.curriculum-controls{display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-end;gap:10px 18px;margin-left:auto}.curriculum-controls .curriculum-grade{margin:0}.curriculum-controls .curriculum-profile{display:flex;align-items:center;gap:8px;margin:0;padding:0;border:0}.curriculum-profile .profile-badges{flex-wrap:nowrap;gap:6px}.curriculum-profile .info-bubble{width:230px;display:grid;gap:6px}.legend-bubble small{color:#75818c}.curriculum-header h1{margin:2px 0 0}@media(max-width:760px){.curriculum-controls{justify-content:flex-start;margin-left:0}.curriculum-profile .profile-badges{flex-wrap:wrap}}.sidebar-bar{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:12px}.sidebar-bar .curriculum-modes{padding:3px;gap:2px}.mode-button{display:grid;place-items:center;width:34px;height:30px;padding:0;border:0;border-radius:6px;background:transparent;color:#596570}.mode-button svg{width:20px;height:20px}.mode-button:hover{background:#edf3fb;color:#2459a6}.curriculum-modes .mode-button[aria-pressed=true]{background:#e7effa;color:#2459a6}.menu-wrap{min-width:0}.profile-chip{display:inline-flex;align-items:center;gap:6px;max-width:170px;min-height:36px;padding:3px 10px 3px 14px;border-radius:999px;font-size:12px}.profile-chip svg{flex:none;width:18px;height:18px}.profile-chip-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.popover{position:fixed;z-index:30;min-width:200px;max-width:min(280px,calc(100vw - 16px));padding:12px;border:1px solid #cdd4db;border-radius:10px;background:#fff;color:#263440;box-shadow:0 8px 24px #17263833}.popover[hidden]{display:none}.popover-title{margin:0 0 8px;font-size:12px;color:#596570}.popover-list{display:grid;gap:6px}.popover .profile-badge{width:100%;justify-content:flex-start}.popover-legend{display:grid;gap:6px;margin-top:12px;padding-top:10px;border-top:1px solid #e1e6eb;font-size:12px;color:#596570}.popover-legend small{color:#75818c}.legend-row{display:flex;align-items:center;gap:8px}.grade-row{display:flex;flex-wrap:wrap;align-items:center;gap:6px}.grade-row .grade-picker{flex-basis:100%}.grade-row .grade-node{flex:1;min-width:0}html[data-theme=dark] .popover{background:#222d37;color:#e1e7ed;border-color:#52606d}html[data-theme=dark] :is(.popover-title,.popover-legend,.popover-legend small){color:#b5c1cc}html[data-theme=dark] .popover-legend{border-color:#52606d}.sheet-button{display:grid;place-items:center;flex:none;width:36px;height:36px;padding:0;border-radius:8px;color:#596570}.sheet-button svg{width:20px;height:20px}.sheet-button:hover{background:#edf3fb;color:#2459a6}.practice-visual svg.primary-model{max-height:none}.practice-visual svg.secondary-model{max-height:none;color:#202b35}html[data-theme=dark] .practice-visual svg.secondary-model{color:#e1e7ed}.tally-marks{display:flex;flex-wrap:wrap;align-items:center;gap:7px;color:inherit}.practice-visual .tally-marks svg{flex:0 0 36px;width:36px;height:30px;margin:0;overflow:visible}.grade-row{gap:0;align-items:stretch;border:1px solid #cdd8e4;border-radius:9px;background:#f0f5fb;overflow:hidden}.grade-row .grade-node{flex:1 1 0;min-width:0;min-height:44px;margin:0;border:0;border-radius:0;background:transparent;color:#2459a6;padding:10px 12px;align-items:center;font-size:14px}.grade-row .grade-node.selected{background:transparent;border:0}.grade-row .grade-trigger{flex:none;justify-content:center;width:38px;min-height:44px;padding:0;border:0;border-left:1px solid #cdd8e4;border-radius:0;background:transparent;color:#2459a6}.grade-row .grade-caret{display:inline;font-size:13px;color:inherit}.grade-row .grade-node:hover,.grade-row .grade-trigger:hover,.grade-row .grade-trigger[aria-expanded=true]{background:#dce9f8}.grade-row .grade-picker{flex-basis:100%;border:0;border-top:1px solid #cdd8e4;border-radius:0;background:#fff}.grade-row:has(:focus-visible){outline:2px solid #2459a6;outline-offset:2px}html[data-theme=dark] .grade-row{background:#283b50;border-color:#526b85}html[data-theme=dark] .grade-row :is(.grade-node,.grade-trigger){background:transparent;color:#b9d9ff;border-color:#526b85}html[data-theme=dark] .grade-row :is(.grade-node:hover,.grade-trigger:hover,.grade-trigger[aria-expanded=true]){background:#36516e}html[data-theme=dark] .grade-row .grade-picker{background:#222d37;border-color:#526b85}