@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}:root{--canvas: #eef1ee;--surface: #ffffff;--surface-2: #f5f7f5;--surface-3: #e7ebe8;--line: #d7dcd8;--line-strong: #b4bcb6;--ink: #17212b;--ink-2: #3f4b55;--ink-3: #66727b;--on-accent: #ffffff;--accent: #1d5c4c;--accent-hover: #174c3f;--accent-soft: #dfece7;--accent-text: #174c3f;--marker: #ffd666;--marker-soft: #fff0bd;--pen-red: #c8392b;--pen-red-soft: #fbe6e3;--good: #1f7a4d;--good-soft: #dff2e7;--warn: #8a5a00;--warn-soft: #fbeecb;--board: #fbfcfa;--board-ink: #17212b;--board-dot: #dfe4df;--dialogue: #1b242d;--dialogue-ink: #f4f6f3;--dialogue-name: #ffd666;--scrim: rgba(15, 21, 27, .42);--font-ui: "IBM Plex Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;--font-hand: "Gaegu", "Nanum Pen Script", cursive;--font-math: "Patrick Hand", "Gaegu", cursive;--t-12: 12px;--t-13: 13px;--t-14: 14px;--t-15: 15px;--t-17: 17px;--t-20: 20px;--t-24: 24px;--t-32: 32px;--s-1: 4px;--s-2: 8px;--s-3: 12px;--s-4: 16px;--s-5: 20px;--s-6: 24px;--s-8: 32px;--s-10: 40px;--s-14: 56px;--h-sm: 32px;--h-md: 40px;--h-lg: 48px;--r-sm: 6px;--r-md: 10px;--r-lg: 14px;--r-xl: 18px;--r-full: 999px;--e-1: 0 1px 2px rgba(15, 21, 27, .08);--e-2: 0 4px 16px rgba(15, 21, 27, .12);--e-3: 0 16px 48px rgba(15, 21, 27, .22);--d-fast: .12s;--d-mid: .2s;--d-slow: .32s;--ease: cubic-bezier(.2, .8, .2, 1);--z-tutor: 1;--z-panel: 2;--z-pop: 40;--z-drawer: 50;--z-dialog: 60;--z-toast: 70}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--canvas: #0f1518;--surface: #171f24;--surface-2: #1d262c;--surface-3: #27323a;--line: #2e3a42;--line-strong: #47545d;--ink: #eef2ef;--ink-2: #c3ccc8;--ink-3: #93a09a;--on-accent: #06231b;--accent: #6fcdb0;--accent-hover: #86d9bf;--accent-soft: #1b352d;--accent-text: #8fdcc4;--marker: #ffd666;--marker-soft: #4a3d14;--pen-red: #ff8a7a;--pen-red-soft: #43211d;--good: #6fd29b;--good-soft: #17352a;--warn: #f0c260;--warn-soft: #3d3114;--board: #15312a;--board-ink: #eef4ea;--board-dot: #24463d;--dialogue: #0b1014;--scrim: rgba(0, 0, 0, .6);color-scheme:dark}}:root[data-theme=dark]{--canvas: #0f1518;--surface: #171f24;--surface-2: #1d262c;--surface-3: #27323a;--line: #2e3a42;--line-strong: #47545d;--ink: #eef2ef;--ink-2: #c3ccc8;--ink-3: #93a09a;--on-accent: #06231b;--accent: #6fcdb0;--accent-hover: #86d9bf;--accent-soft: #1b352d;--accent-text: #8fdcc4;--marker: #ffd666;--marker-soft: #4a3d14;--pen-red: #ff8a7a;--pen-red-soft: #43211d;--good: #6fd29b;--good-soft: #17352a;--warn: #f0c260;--warn-soft: #3d3114;--board: #15312a;--board-ink: #eef4ea;--board-dot: #24463d;--dialogue: #0b1014;--scrim: rgba(0, 0, 0, .6);color-scheme:dark}@media(prefers-reduced-motion:reduce){:root{--d-fast: 0ms;--d-mid: 0ms;--d-slow: 0ms}}html,body,#root{height:100%;margin:0}body{background:var(--canvas);color:var(--ink);font-family:var(--font-ui);word-break:keep-all}.vp{container:vp / inline-size;position:relative;width:100%;height:100%;overflow:hidden;background:var(--canvas);color:var(--ink);font-family:var(--font-ui);font-size:var(--t-14);line-height:1.45}.vp *,.vp *:before,.vp *:after,.al-demo *{box-sizing:border-box}.al-grow{flex:1 1 0;min-width:0}.al-title{font-size:var(--t-17);font-weight:600;line-height:1.3;color:var(--ink);text-wrap:balance}.al-sub{margin:var(--s-1) 0 0;font-size:var(--t-13);line-height:1.5;color:var(--ink-3)}.al-spin{animation:al-spin .9s linear infinite}@keyframes al-spin{to{transform:rotate(360deg)}}.al-btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--s-2);flex:none;border:1px solid transparent;border-radius:var(--r-md);font:inherit;font-weight:600;white-space:nowrap;cursor:pointer;transition:background var(--d-fast) var(--ease),border-color var(--d-fast) var(--ease),transform var(--d-fast) var(--ease)}.al-btn--sm{height:var(--h-sm);padding:0 var(--s-3);font-size:var(--t-13)}.al-btn--md{height:var(--h-md);padding:0 var(--s-4);font-size:var(--t-14)}.al-btn--lg{height:var(--h-lg);padding:0 var(--s-5);font-size:var(--t-15)}.al-btn--block{width:100%}.al-btn--icon.al-btn--sm{width:var(--h-sm);padding:0}.al-btn--icon.al-btn--md{width:var(--h-md);padding:0}.al-btn--icon.al-btn--lg{width:var(--h-lg);padding:0}.al-btn--primary{background:var(--accent);color:var(--on-accent)}.al-btn--primary:hover,.al-btn--primary[data-hover]{background:var(--accent-hover)}.al-btn--secondary{background:var(--surface);color:var(--ink);border-color:var(--line-strong)}.al-btn--secondary:hover,.al-btn--secondary[data-hover]{background:var(--surface-2)}.al-btn--quiet{background:transparent;color:var(--ink-2)}.al-btn--quiet:hover,.al-btn--quiet[data-hover]{background:var(--surface-3)}.al-btn--danger{background:var(--pen-red);color:var(--on-accent)}.al-btn:active,.al-btn[data-pressed]{transform:scale(.98)}.al-btn:disabled{opacity:.45;cursor:not-allowed;transform:none}:where(.al-btn,.al-select__trigger,.al-input,.al-chip,.al-seg__opt,.al-row,.al-voice__main,.al-menuitem,.al-tabs button,.al-link):focus-visible,.al-toggle input:focus-visible+.al-toggle__track,.al-slider:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.al-link{border:0;padding:0;background:none;color:var(--accent-text);font:inherit;font-weight:500;text-decoration:underline;text-underline-offset:3px;cursor:pointer}.al-field{display:flex;flex-direction:column;gap:6px;min-width:0}.al-field--inline{display:inline-flex}.al-field__label{font-size:var(--t-13);font-weight:600;color:var(--ink-2)}.al-field__hint{margin:0;font-size:var(--t-12);line-height:1.4;color:var(--ink-3)}.al-field__error{margin:0;font-size:var(--t-12);line-height:1.4;color:var(--pen-red);font-weight:500}.al-input{width:100%;min-height:var(--h-md);padding:0 var(--s-3);border:1px solid var(--line-strong);border-radius:var(--r-md);background:var(--surface);color:var(--ink);font:inherit}.al-input::placeholder{color:var(--ink-3)}.al-input:disabled{background:var(--surface-2);color:var(--ink-3)}.al-input.is-error{border-color:var(--pen-red)}.al-textarea{padding:10px var(--s-3);resize:vertical;line-height:1.5}.al-select{position:relative;min-width:0}.al-select__trigger{display:flex;align-items:center;justify-content:space-between;gap:var(--s-2);width:100%;padding:0 var(--s-3);border:1px solid var(--line-strong);border-radius:var(--r-md);background:var(--surface);color:var(--ink);font:inherit;text-align:left;cursor:pointer}.al-select__trigger--md{height:var(--h-md)}.al-select__trigger--sm{height:var(--h-sm);font-size:var(--t-13);padding:0 10px}.al-select__trigger:hover,.al-select__trigger[data-hover],.al-select__trigger[data-open]{background:var(--surface-2)}.al-select__trigger:disabled{opacity:.5;cursor:not-allowed}.al-select__trigger.is-compact{width:auto;font-weight:500}.al-select__value{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.al-select__caret{flex:none;color:var(--ink-3);transition:transform var(--d-fast) var(--ease)}[data-open]>.al-select__caret{transform:rotate(180deg)}.al-pop{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--e-2);padding:var(--s-1);z-index:var(--z-pop)}.al-select__list{position:absolute;left:0;top:calc(100% + var(--s-1));min-width:max(100%,220px);max-height:300px;overflow:auto}.al-select__list.is-up{top:auto;bottom:calc(100% + var(--s-1))}.al-select__opt{display:flex;align-items:center;justify-content:space-between;gap:var(--s-3);min-height:var(--h-md);padding:var(--s-2) 10px;border-radius:var(--r-md);cursor:pointer}.al-select__opt[data-cur]{background:var(--surface-3)}.al-select__opt[aria-selected=true]{color:var(--accent-text);font-weight:600}.al-select__opt[aria-disabled]{opacity:.45;cursor:not-allowed}.al-select__opt-text{display:flex;flex-direction:column;gap:2px;min-width:0}.al-select__opt-text small{font-size:var(--t-12);font-weight:400;color:var(--ink-3)}.al-select__tag{margin-left:6px;padding:1px 6px;border-radius:var(--r-full);background:var(--surface-3);color:var(--ink-2);font-size:11px;font-style:normal;font-weight:500}.al-seg{display:inline-flex;gap:2px;padding:2px;border-radius:var(--r-md);background:var(--surface-3)}.al-seg--block{display:flex}.al-seg--block .al-seg__opt{flex:1 1 0}.al-seg__opt{height:34px;padding:0 var(--s-3);border:0;border-radius:8px;background:transparent;color:var(--ink-2);font:inherit;font-size:var(--t-13);font-weight:500;white-space:nowrap;cursor:pointer}.al-seg__opt[aria-checked=true]{background:var(--surface);color:var(--ink);font-weight:600;box-shadow:var(--e-1)}.al-chips{display:flex;flex-wrap:wrap;gap:var(--s-2)}.al-chip{height:36px;padding:0 var(--s-3);border:1px solid var(--line-strong);border-radius:var(--r-full);background:var(--surface);color:var(--ink-2);font:inherit;font-size:var(--t-13);cursor:pointer}.al-chip:hover,.al-chip[data-hover]{background:var(--surface-2)}.al-chip[aria-pressed=true]{background:var(--accent-soft);border-color:var(--accent);color:var(--accent-text);font-weight:600}.al-toggle{display:flex;align-items:center;justify-content:space-between;gap:var(--s-4);cursor:pointer}.al-toggle input{position:absolute;opacity:0;width:1px;height:1px}.al-toggle__text{display:flex;flex-direction:column;gap:2px;min-width:0}.al-toggle__text small{font-size:var(--t-12);color:var(--ink-3)}.al-toggle__track{position:relative;flex:none;width:40px;height:24px;border-radius:var(--r-full);background:var(--line-strong);transition:background var(--d-mid) var(--ease)}.al-toggle__track:after{content:"";position:absolute;top:2px;left:2px;width:20px;height:20px;border-radius:50%;background:var(--surface);box-shadow:var(--e-1);transition:transform var(--d-mid) var(--ease)}.al-toggle input:checked+.al-toggle__track{background:var(--accent)}.al-toggle input:checked+.al-toggle__track:after{transform:translate(16px)}.al-slider__head{display:flex;justify-content:space-between;gap:var(--s-3);font-variant-numeric:tabular-nums}.al-slider__head output{font-size:var(--t-13);font-weight:600}.al-slider{width:100%;height:24px;margin:0;background:none;-webkit-appearance:none;-moz-appearance:none;appearance:none;cursor:pointer}.al-slider::-webkit-slider-runnable-track{height:6px;border-radius:3px;background:linear-gradient(to right,var(--accent) var(--p),var(--surface-3) var(--p))}.al-slider::-moz-range-track{height:6px;border-radius:3px;background:linear-gradient(to right,var(--accent) var(--p),var(--surface-3) var(--p))}.al-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:20px;height:20px;margin-top:-7px;border-radius:50%;border:2px solid var(--accent);background:var(--surface)}.al-slider::-moz-range-thumb{width:16px;height:16px;border-radius:50%;border:2px solid var(--accent);background:var(--surface)}.al-overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:var(--z-drawer);display:flex;justify-content:flex-end;pointer-events:none;visibility:hidden;transition:visibility 0s linear var(--d-slow)}.al-overlay[data-open]{pointer-events:auto;visibility:visible;transition-delay:0s}.al-overlay--center{z-index:var(--z-dialog);align-items:center;justify-content:center;padding:var(--s-4)}.al-scrim{position:absolute;top:0;right:0;bottom:0;left:0;background:var(--scrim);opacity:0;transition:opacity var(--d-slow) var(--ease)}[data-open]>.al-scrim{opacity:1}[data-clear]>.al-scrim{opacity:0}.al-drawer{color:var(--ink);position:relative;display:flex;flex-direction:column;width:min(420px,100%);height:100%;background:var(--surface);box-shadow:var(--e-3);transform:translate(100%);transition:transform var(--d-slow) var(--ease);outline:none}[data-open]>.al-drawer{transform:none}.al-drawer__head{display:flex;align-items:flex-start;gap:var(--s-3);padding:var(--s-4) var(--s-4) var(--s-3) var(--s-5);border-bottom:1px solid var(--line)}.al-drawer__body{flex:1 1 0;min-height:0;overflow:hidden auto;padding:var(--s-4) var(--s-5);display:flex;flex-direction:column;gap:var(--s-5);overscroll-behavior:contain}.al-drawer__foot{display:flex;gap:var(--s-2);justify-content:flex-end;padding:var(--s-3) var(--s-5);border-top:1px solid var(--line)}@container vp (max-width: 679px){.al-overlay{align-items:flex-end}.al-drawer{width:100%;height:auto;max-height:86%;border-radius:var(--r-xl) var(--r-xl) 0 0;transform:translateY(100%)}.al-drawer__body{flex:1 1 auto}.al-btn--md,.al-input,.al-select__trigger--md,.al-chip,.al-seg__opt{min-height:44px}.al-btn--icon.al-btn--sm{width:44px;height:44px}}.al-dialog{color:var(--ink);position:relative;width:min(400px,100%);padding:var(--s-5);border-radius:var(--r-xl);background:var(--surface);box-shadow:var(--e-3)}.al-dialog__actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:var(--s-2);margin-top:var(--s-5)}.al-menuitem{display:flex;align-items:center;gap:var(--s-2);width:100%;min-height:var(--h-md);padding:0 10px;border:0;border-radius:var(--r-md);background:none;color:var(--ink);font:inherit;text-align:left;cursor:pointer}.al-menuitem:hover{background:var(--surface-3)}.al-menuitem.is-danger{color:var(--pen-red)}.al-toast{display:inline-flex;align-items:center;gap:var(--s-3);min-height:var(--h-md);padding:var(--s-2) var(--s-4);border-radius:var(--r-lg);background:var(--ink);color:var(--surface);font-size:var(--t-13);box-shadow:var(--e-2)}.al-badge{display:inline-flex;align-items:center;gap:4px;height:24px;padding:0 var(--s-2);border-radius:var(--r-full);font-size:var(--t-12);font-weight:600;white-space:nowrap}.al-badge--plain{background:var(--surface-3);color:var(--ink-2)}.al-badge--accent{background:var(--accent-soft);color:var(--accent-text)}.al-badge--good{background:var(--good-soft);color:var(--good)}.al-badge--warn{background:var(--warn-soft);color:var(--warn)}.al-badge--bad{background:var(--pen-red-soft);color:var(--pen-red)}.al-banner{display:flex;flex-wrap:wrap;align-items:center;gap:var(--s-3);padding:var(--s-3) var(--s-4);border-radius:var(--r-md);background:var(--surface-3);color:var(--ink-2);font-size:var(--t-13)}.al-banner--warn{background:var(--warn-soft);color:var(--warn)}.al-banner--bad{background:var(--pen-red-soft);color:var(--pen-red)}.al-card{padding:var(--s-4);border-radius:var(--r-lg);background:var(--surface);border:1px solid var(--line);min-width:0}.al-card--flat{background:var(--surface-2);border-color:transparent}.al-row{display:flex;align-items:center;gap:var(--s-3);width:100%;min-height:48px;padding:var(--s-2) var(--s-3);border:0;border-radius:var(--r-md);background:none;color:inherit;font:inherit;text-align:left}button.al-row{cursor:pointer}button.al-row:hover,.al-row[data-hover]{background:var(--surface-3)}.al-row[data-sel]{background:var(--accent-soft)}.al-row__text{display:flex;flex-direction:column;gap:2px;flex:1 1 0;min-width:0}.al-row__title{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.al-row__sub{font-size:var(--t-12);color:var(--ink-3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.al-row__end{display:inline-flex;align-items:center;gap:var(--s-2);flex:none;color:var(--ink-3);font-size:var(--t-12);font-variant-numeric:tabular-nums}.al-avatar{display:inline-grid;place-items:center;flex:none;overflow:hidden;border-radius:50%;background:var(--accent-soft);color:var(--accent-text);font-weight:700}.al-avatar img{width:100%;height:100%;object-fit:cover;object-position:50% 0}.al-avatar[data-state=baking]{outline:2px dashed var(--accent);outline-offset:2px}.al-progress{height:6px;border-radius:3px;background:var(--surface-3);overflow:hidden}.al-progress span{display:block;height:100%;border-radius:3px;background:var(--accent);transition:width var(--d-slow) var(--ease)}.al-beats{display:inline-flex;gap:3px;align-items:center}.al-beats i{width:14px;height:4px;border-radius:2px;background:var(--line-strong);transition:background var(--d-mid) var(--ease)}.al-beats i[data-s=done]{background:var(--accent)}.al-beats i[data-s=cur]{background:var(--ink)}.al-stepper{display:flex;gap:var(--s-2);list-style:none;margin:0;padding:0}.al-stepper li{display:flex;align-items:center;gap:6px;font-size:var(--t-13);color:var(--ink-3);white-space:nowrap}.al-stepper li+li:before{content:"";width:20px;height:1px;background:var(--line-strong);margin-right:2px}.al-stepper__dot{display:inline-grid;place-items:center;width:22px;height:22px;border-radius:50%;background:var(--surface-3);font-size:var(--t-12);font-weight:600;font-variant-numeric:tabular-nums}.al-stepper li[data-s=cur]{color:var(--ink);font-weight:600}.al-stepper li[data-s=cur] .al-stepper__dot{background:var(--ink);color:var(--surface)}.al-stepper li[data-s=done] .al-stepper__dot{background:var(--accent);color:var(--on-accent)}@container vp (max-width: 679px){.al-stepper li:not([data-s=cur]) .al-stepper__label{display:none}.al-stepper li+li:before{width:10px}}.al-skel{display:block;background:var(--surface-3);animation:al-pulse 1.4s ease-in-out infinite}@keyframes al-pulse{50%{opacity:.55}}.al-empty{display:flex;flex-direction:column;align-items:flex-start;gap:var(--s-3);padding:var(--s-6);border:1px dashed var(--line-strong);border-radius:var(--r-lg)}.al-tabs{display:flex;gap:var(--s-4);border-bottom:1px solid var(--line);overflow:auto hidden;scrollbar-width:none}.al-tabs button{height:var(--h-md);padding:0;border:0;border-bottom:2px solid transparent;background:none;color:var(--ink-3);font:inherit;font-weight:500;white-space:nowrap;cursor:pointer}.al-tabs button[aria-selected=true]{color:var(--ink);border-color:var(--ink);font-weight:600}.al-voice{display:flex;align-items:center;gap:var(--s-2);padding:var(--s-2) var(--s-2) var(--s-2) var(--s-3);border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface)}.al-voice[data-sel]{border-color:var(--accent);background:var(--accent-soft)}.al-voice__main{display:flex;align-items:center;gap:var(--s-2);flex:1 1 0;min-width:0;min-height:40px;border:0;padding:0 var(--s-1);background:none;color:inherit;font:inherit;text-align:left;cursor:pointer;border-radius:var(--r-sm)}.ls{position:relative;display:grid;height:100%;gap:var(--s-2);padding:var(--s-2);grid-template-columns:var(--tc, 72px) minmax(0,1fr);grid-template-rows:auto minmax(0,1fr) auto auto;grid-template-areas:"top top" "row row" "tutor dlg" "dock dock";background:var(--board);background-image:radial-gradient(var(--board-dot) 1px,transparent 1px);background-size:20px 20px;color:var(--board-ink)}.ls[data-char=off]{grid-template-columns:minmax(0,1fr);grid-template-areas:"top" "row" "dlg" "dock"}.ls[data-char=face]{--tc: 48px}.ls-top{grid-area:top;display:flex;align-items:center;gap:var(--s-2);min-width:0;height:40px}.ls-top__title{flex:1 1 0;min-width:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;font-size:var(--t-13);font-weight:500}.ls-row{grid-area:row;display:flex;flex-direction:column;gap:var(--s-2);min-width:0;min-height:0}.ls-board{flex:1 1 38%;min-height:0;min-width:0;overflow:hidden auto;scrollbar-width:thin;padding:var(--s-3) var(--s-3) var(--s-6);position:relative}.ls-card{flex:0 1 auto;max-height:62%;min-height:0;display:flex;flex-direction:column;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--e-2);animation:al-in var(--d-mid) var(--ease)}@keyframes al-fade{0%{opacity:0}}@keyframes al-in{0%{opacity:0;transform:translateY(6px)}}.ls-tutor{grid-area:tutor;min-width:0;min-height:0;display:flex;align-items:flex-end;justify-content:center;overflow:hidden;height:78px;align-self:end;z-index:var(--z-tutor)}.ls-tutor img{display:block;width:100%;height:100%;object-fit:contain;object-position:bottom}.ls-dialogue{grid-area:dlg;min-width:0;z-index:var(--z-panel)}.ls-dock{grid-area:dock;display:flex;align-items:center;gap:var(--s-2);min-width:0;z-index:var(--z-panel)}.ls-dock .al-field{flex:1 1 0}.ls-dock .al-input{height:44px;border-radius:var(--r-full);padding:0 var(--s-4)}.ls-dock .al-btn{height:44px;border-radius:var(--r-full)}.ls-dock .al-btn--icon{width:44px}@container vp (min-width: 680px){.ls{grid-template-columns:minmax(0,1fr) var(--rail, clamp(170px, 21cqw, 270px));grid-template-areas:"top top" "row tutor" "dlg dlg" "dock dock"}.ls[data-char=stand]{--rail: clamp(190px, 25cqw, 320px)}.ls[data-char=off]{--rail: 0px;column-gap:0;grid-template-columns:minmax(0,1fr);grid-template-areas:"top" "row" "dlg" "dock"}.ls[data-char=face]{grid-template-columns:64px minmax(0,1fr);grid-template-areas:"top top" "row row" "tutor dlg" "dock dock"}.ls[data-char=face] .ls-tutor{height:64px}.ls[data-char=bust] .ls-tutor,.ls[data-char=stand] .ls-tutor{height:100%;margin-bottom:calc(var(--s-2) * -1)}.ls-row{flex-direction:row}.ls-board{flex:1 1 0;padding:var(--s-4) var(--s-6) var(--s-8)}.ls-card{flex:0 0 clamp(290px,32cqw,420px);max-height:100%;align-self:flex-start}}.al-dlg{display:flex;flex-direction:column;height:78px;padding:6px var(--s-3) var(--s-2);border-radius:var(--r-lg);background:var(--dialogue);color:var(--dialogue-ink)}.al-dlg__head{display:flex;justify-content:space-between;gap:var(--s-3);height:18px;font-size:var(--t-12);line-height:18px}.al-dlg__name{font-weight:700;color:var(--dialogue-name)}.al-dlg__hint{color:var(--dialogue-name)}.al-dlg__text{height:44px;overflow:hidden;font-size:var(--t-14);line-height:22px}.al-dlg[data-wait]{cursor:pointer}@container vp (min-width: 680px){.al-dlg{height:100px;padding:var(--s-3) var(--s-5) var(--s-4)}.al-dlg__head{height:20px;font-size:13.5px;line-height:20px}.al-dlg__text{height:52px;font-size:16.5px;line-height:26px}}.al-bl{animation:al-fade var(--d-mid) var(--ease);font-family:var(--font-hand);width:fit-content;max-width:100%;color:var(--board-ink);overflow-wrap:anywhere}.al-bl--title{font-size:clamp(25px,3cqw,36px);font-weight:700;line-height:1.25;margin-bottom:var(--s-3)}.al-bl--text{font-size:clamp(19px,2.2cqw,26px);line-height:1.35;margin-bottom:var(--s-2)}.al-bl--math{font-family:var(--font-math);font-size:clamp(24px,2.8cqw,34px);line-height:1.35;margin-bottom:var(--s-2)}.al-bl.is-mark{background:linear-gradient(transparent 12%,var(--marker) 12%,var(--marker) 90%,transparent 90%);padding:0 var(--s-1);color:#17212b}.al-aside{display:flex;flex-direction:column;flex:0 1 auto;min-height:0}.al-aside__body{flex:0 1 auto;min-height:96px;overflow:hidden auto;padding:var(--s-3) var(--s-4);display:flex;flex-direction:column;gap:var(--s-4)}.al-aside__foot{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:var(--s-2);padding:var(--s-2) var(--s-3);border-top:1px solid var(--line)}.al-entry{display:flex;flex-direction:column;gap:var(--s-2)}.al-entry__q{align-self:flex-end;max-width:92%;padding:6px var(--s-3);border-radius:var(--r-lg) var(--r-lg) 2px var(--r-lg);background:var(--marker-soft);font-size:var(--t-13);line-height:1.4;overflow-wrap:anywhere}.al-entry__heard{margin:0;font-size:var(--t-13);color:var(--ink-3)}.al-entry__title{font-size:var(--t-15);font-weight:600}.al-entry__line{font-size:var(--t-14);line-height:1.5}.al-entry__line.is-math{font-size:var(--t-17);font-weight:500;font-variant-numeric:tabular-nums}html,body{overflow-x:clip}.al-overlay{overflow:clip}.wordmark{font-weight:700;font-size:var(--t-15);letter-spacing:-.01em;color:var(--ink);white-space:nowrap}.wordmark small{font-weight:500;font-size:var(--t-12);color:var(--ink-3)}.ls-top .wordmark{color:var(--board-ink)}.ls-time{font-size:var(--t-12);color:var(--board-ink);font-variant-numeric:tabular-nums;white-space:nowrap}.ls-top .al-btn--quiet{color:var(--board-ink)}.tutor-btn{display:block;width:100%;height:100%;padding:0;border:0;background:none;cursor:pointer;border-radius:var(--r-md)}.dock-input{flex:1 1 0;min-width:0}.first-board{display:flex;flex-direction:column;justify-content:center;gap:var(--s-2);max-width:680px;min-height:100%}.first-board .al-bl--title{font-size:clamp(28px,3.6cqw,48px);margin-bottom:var(--s-4)}.topics{display:flex;flex-direction:column;gap:var(--s-1)}.topic{display:flex;align-items:center;justify-content:space-between;gap:var(--s-3);width:100%;min-height:44px;padding:var(--s-2) var(--s-3);border:0;border-bottom:1px dashed var(--line-strong);background:none;color:var(--board-ink);font-family:var(--font-hand);font-size:clamp(19px,2.2cqw,27px);text-align:left;cursor:pointer;border-radius:var(--r-sm) var(--r-sm) 0 0}.topic:hover,.topic[data-hover]{background:var(--marker-soft)}.topic[data-picked]{background:var(--marker);color:#17212b}.topic svg{flex:none}.topic--resume{background:var(--surface);color:var(--ink);border:1px solid var(--line-strong);border-radius:var(--r-md);font-family:var(--font-ui);font-size:var(--t-14);margin-bottom:var(--s-2)}.topic--resume span{display:flex;flex-direction:column;gap:2px;min-width:0}.topic--resume small{font-size:var(--t-12);color:var(--ink-3)}.under-dock{position:absolute;right:var(--s-2);bottom:60px;width:min(340px,calc(100% - 16px));z-index:var(--z-pop)}.start-pop{display:flex;flex-direction:column;gap:var(--s-2);padding:var(--s-2)}.tlist{display:flex;flex-direction:column;gap:var(--s-1)}.think-lines{display:flex;flex-direction:column;gap:var(--s-3);margin-top:var(--s-2)}.think-lines--float{position:absolute;left:var(--s-6);right:var(--s-6);top:var(--s-5);transition:opacity var(--d-mid) var(--ease)}.think-lines--float[data-off]{opacity:0}.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--s-3)}.logs{display:flex;flex-direction:column;gap:2px}.log{display:flex;flex-direction:column;gap:2px;padding:var(--s-2) var(--s-3);border:0;border-radius:var(--r-md);background:none;color:var(--ink);font:inherit;font-size:var(--t-13);text-align:left;cursor:pointer}.log:hover{background:var(--surface-3)}.log b{font-size:var(--t-12);color:var(--ink-3)}.log[data-me]{background:var(--marker-soft)}.quiz-card{margin-top:var(--s-2);padding:var(--s-3);border-radius:var(--r-lg);background:var(--surface);color:var(--ink);border:1px solid var(--line);max-width:360px}.quiz-opts{display:flex;flex-wrap:wrap;gap:var(--s-2);margin-top:var(--s-2)}.quiz-opt{min-width:64px;height:44px;padding:0 var(--s-3);border:1px solid var(--line-strong);border-radius:var(--r-md);background:var(--surface);color:var(--ink);font:inherit;font-weight:600;cursor:pointer}.quiz-opt:hover{background:var(--surface-2)}.quiz-list{display:flex;flex-direction:column;gap:var(--s-2);margin:var(--s-3) 0}.quiz-row{min-height:48px;padding:0 var(--s-4);border:1px solid var(--line-strong);border-radius:var(--r-md);background:var(--surface);color:var(--ink);font:inherit;text-align:left;cursor:pointer}.quiz-row[data-s=right]{border-color:var(--good);background:var(--good-soft);font-weight:600}.quiz-row[data-s=wrong]{border-color:var(--pen-red);background:var(--pen-red-soft)}.pen-red{font-family:var(--font-hand);font-size:clamp(19px,2.2cqw,26px);color:var(--pen-red)}.soft-tag{margin-bottom:var(--s-2)}.inline-ic{vertical-align:-3px;margin-right:6px}.ls-board>.al-banner{margin-bottom:var(--s-3)}.page{display:grid;grid-template-rows:auto minmax(0,1fr) auto;height:100%}.page__bar{display:flex;align-items:center;gap:var(--s-6);height:56px;padding:0 var(--s-6);background:var(--surface);border-bottom:1px solid var(--line)}.page__nav{display:flex;gap:var(--s-1)}.page__nav a{padding:var(--s-2) var(--s-3);border-radius:var(--r-md);color:var(--ink-2);text-decoration:none;font-size:var(--t-14);font-weight:500}.page__nav a[aria-current]{background:var(--surface-3);color:var(--ink);font-weight:600}.page__main{display:flex;flex-direction:column;gap:var(--s-4);width:min(880px,100%);margin:0 auto;padding:var(--s-6);overflow:hidden auto}.page__head{display:flex;align-items:center;gap:var(--s-2);min-height:32px}.page__title{font-size:var(--t-20);font-weight:700;min-width:0;line-height:1.3}.page__tabbar{display:none}.al-card.flush{padding:var(--s-1)}.btn-row{display:flex;flex-wrap:wrap;gap:var(--s-2)}.btn-row--end{justify-content:flex-end}.note{padding:var(--s-5);border-radius:var(--r-lg);background-color:var(--board);background-image:radial-gradient(var(--board-dot) 1px,transparent 1px);background-size:20px 20px;border:1px solid var(--line)}.count-txt{font-size:var(--t-13);color:var(--ink-3);font-variant-numeric:tabular-nums}.scrub{flex:1 1 0;min-width:0}.scrub .al-field__label{display:none}@container vp (max-width: 679px){.page__bar{display:none}.page__main{padding:var(--s-4)}.page__tabbar{display:grid;grid-template-columns:repeat(4,1fr);height:60px;background:var(--surface);border-top:1px solid var(--line)}.page__tabbar a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:var(--ink-3);font-size:11px;text-decoration:none}.page__tabbar a[aria-current]{color:var(--accent-text);font-weight:600}.ls-time{display:none}.ls-top .wordmark{font-size:var(--t-14)}}.maker{display:grid;grid-template-rows:56px minmax(0,1fr) auto;height:100%;background:var(--surface)}.maker__bar{display:flex;align-items:center;gap:var(--s-3);padding:0 var(--s-4);border-bottom:1px solid var(--line)}.maker__name{font-weight:600;white-space:nowrap}.maker__body{overflow:hidden auto}.maker__col{display:flex;flex-direction:column;gap:var(--s-4);width:min(640px,100%);margin:0 auto;padding:var(--s-6) var(--s-5)}.maker__title{font-size:var(--t-24);font-weight:700;line-height:1.3}.maker__col>.al-sub{margin-top:calc(var(--s-3) * -1)}.maker__foot{display:flex;align-items:center;gap:var(--s-2);min-height:64px;padding:var(--s-3) var(--s-5);border-top:1px solid var(--line)}.paths{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--s-3)}.path{display:flex;flex-direction:column;align-items:flex-start;gap:var(--s-2);padding:var(--s-4);border:1px solid var(--line-strong);border-radius:var(--r-lg);background:var(--surface);color:var(--ink);font:inherit;text-align:left;cursor:pointer}.path:hover,.path[data-hover]{background:var(--surface-2)}.path__t{font-size:var(--t-15);font-weight:600}.path__s{font-size:var(--t-13);line-height:1.5;color:var(--ink-3)}.axis{display:flex;flex-direction:column;gap:var(--s-2)}.cands{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--s-3)}.cand{aspect-ratio:1;padding:0;overflow:hidden;border:2px solid var(--line);border-radius:var(--r-lg);background:var(--surface-2);cursor:pointer}.cand img{display:block;width:100%;height:100%;object-fit:contain;object-position:bottom}.cand:hover,.cand[data-hover]{border-color:var(--line-strong)}.cand[aria-pressed=true]{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent)}.cand--wait{background:var(--surface-3);animation:al-pulse 1.4s ease-in-out infinite}.cand--wait .al-skel{display:none}.preview{display:flex;gap:var(--s-3);align-items:flex-start}.preview p{margin-top:2px}.voices{display:flex;flex-direction:column;gap:var(--s-2)}.dice-row{display:flex;align-items:center;gap:var(--s-3);font-weight:600}.drop{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--s-2);min-height:150px;padding:var(--s-4);border:1px dashed var(--line-strong);border-radius:var(--r-lg);background:var(--surface-2);color:var(--ink-2);font:inherit;cursor:pointer}.drop small{font-size:var(--t-12);color:var(--ink-3)}.bake{display:grid;grid-template-columns:240px minmax(0,1fr);gap:var(--s-6);align-items:start}.bake__pic{position:relative;aspect-ratio:1;overflow:hidden;border-radius:var(--r-lg);background:var(--surface-3)}.bake__pic img{display:block;width:100%;height:100%;object-fit:cover}.bake__shade{position:absolute;top:45%;right:0;bottom:0;left:0;background:var(--surface-3);opacity:.86}.bake__info{display:flex;flex-direction:column;gap:var(--s-3);min-width:0}.exprs{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:var(--s-1)}.exprs img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:var(--r-sm);background:var(--surface-3)}.code-box{display:flex;flex-direction:column;align-items:flex-start;gap:var(--s-2)}.code-val{font-size:var(--t-24);font-weight:700;letter-spacing:.08em;font-variant-numeric:tabular-nums}.tgrid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--s-3)}.tcard{display:flex;flex-direction:column;align-items:flex-start;gap:6px;padding:var(--s-3);border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);color:var(--ink);font:inherit;text-align:left;cursor:pointer;min-width:0}.tcard[data-sel]{border-color:var(--accent)}.tcard img,.tcard__wait{display:grid;place-items:center;width:100%;aspect-ratio:1;object-fit:cover;border-radius:var(--r-md);background:var(--surface-3);color:var(--ink-3);font-size:var(--t-12)}.tcard>span:not(.al-badge):not(.tcard__wait){font-size:var(--t-12);color:var(--ink-3)}.tcard--add{justify-content:center;align-items:center;border-style:dashed;border-color:var(--line-strong);text-align:center}.stat-row{display:flex;align-items:center;justify-content:space-between;gap:var(--s-4)}.big-num{font-size:var(--t-32);font-weight:700;line-height:1.2;font-variant-numeric:tabular-nums}.stats .big-num{font-size:var(--t-24)}@container vp (max-width: 679px){.paths,.bake{grid-template-columns:minmax(0,1fr)}.cands{grid-template-columns:repeat(2,minmax(0,1fr))}.bake__pic{width:160px}.tgrid{grid-template-columns:repeat(2,minmax(0,1fr))}.maker__title{font-size:var(--t-20)}.maker__col{padding:var(--s-4)}.maker__name{display:none}.maker__bar .al-stepper{margin-left:auto}.grid2{grid-template-columns:minmax(0,1fr)}}.con{display:grid;grid-template-columns:200px minmax(0,1fr);height:100%}.con__side{display:flex;flex-direction:column;gap:var(--s-4);padding:var(--s-4) var(--s-3);background:var(--surface);border-right:1px solid var(--line);min-width:0}.con__side nav{display:flex;flex-direction:column;gap:2px}.con__side a{display:flex;align-items:center;gap:var(--s-2);min-height:36px;padding:0 var(--s-2);border-radius:var(--r-md);color:var(--ink-2);font-size:var(--t-13);text-decoration:none;white-space:nowrap}.con__side a[aria-current]{background:var(--surface-3);color:var(--ink);font-weight:600}.con__main{display:flex;flex-direction:column;gap:var(--s-4);padding:var(--s-5) var(--s-6);overflow:hidden auto;min-width:0}.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--s-3)}.bars{display:flex;align-items:flex-end;gap:var(--s-2);height:110px;margin-top:var(--s-3)}.bars span{flex:1 1 0;max-width:48px;background:var(--accent);border-radius:3px 3px 0 0}.brand-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:var(--s-5)}.brand-form{display:flex;flex-direction:column;gap:var(--s-3)}.brand-prev{display:flex;flex-direction:column;gap:var(--s-2);padding:var(--s-3);border:1px solid var(--line);border-radius:var(--r-lg);background:var(--board);align-self:start;container:vp / inline-size}.brand-prev__board{padding:var(--s-2)}.snippet{margin:0;white-space:pre-wrap;overflow-wrap:anywhere;font-family:ui-monospace,Consolas,monospace;font-size:var(--t-12);line-height:1.6}@container vp (max-width: 679px){.con{grid-template-columns:minmax(0,1fr);grid-template-rows:auto minmax(0,1fr)}.con__side{flex-direction:column;gap:var(--s-2);padding:var(--s-3) var(--s-3) var(--s-2);border-right:0;border-bottom:1px solid var(--line)}.con__side nav{flex-direction:row;overflow:auto hidden;scrollbar-width:none}.con__side a{flex:none}.con__main{padding:var(--s-4)}.brand-grid{grid-template-columns:minmax(0,1fr)}.stats{grid-template-columns:minmax(0,1fr);gap:var(--s-2)}}.host{display:grid;grid-template-rows:44px minmax(0,1fr);height:100%;background:var(--surface-3)}.host__bar{display:flex;align-items:center;padding:0 var(--s-4);background:var(--surface);border-bottom:1px solid var(--line);font-size:var(--t-13);font-weight:600;color:var(--ink-3)}.host__body{display:grid;grid-template-columns:minmax(0,1fr);gap:var(--s-3);padding:var(--s-3);min-height:0}.host__body[data-side]{grid-template-columns:minmax(0,1fr) minmax(0,1.6fr)}.host__side,.host-card{display:flex;flex-direction:column;gap:var(--s-3);padding:var(--s-4);border-radius:var(--r-lg);background:var(--surface);min-width:0}.host__slot{position:relative;min-width:0;min-height:0;overflow:hidden;border-radius:var(--r-lg);border:2px dashed var(--line-strong)}.host__slot>.host-card{border:0;margin:var(--s-3)}.host-map{display:flex;flex-direction:column;align-items:flex-start;gap:var(--s-3)}.embed-vp{container:vp / inline-size;height:100%}@container vp (max-width: 679px){.host__body[data-side]{grid-template-columns:minmax(0,1fr);grid-template-rows:auto minmax(0,1fr)}}.teacher-remote{display:flex;flex-wrap:wrap;gap:var(--s-2);flex:1 1 0;min-width:0}@container vp (max-width: 679px){.page{grid-template-rows:minmax(0,1fr) auto}}.al-card.stack,.stack{display:flex;flex-direction:column;gap:14px}.stack .code-box{display:flex;flex-direction:column;align-items:flex-start;gap:6px}.mat-add{position:relative;flex:none;display:inline-flex}.mat-count{position:absolute;top:-4px;right:-4px;min-width:18px;height:18px;padding:0 4px;border-radius:9px;background:var(--accent, #1D5C4C);color:#fff;font-size:11px;line-height:18px;text-align:center;pointer-events:none}.mat-list{display:flex;flex-direction:column;gap:6px}.start-cost{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}.sound-gate{display:flex;justify-content:center;padding-bottom:var(--s-2)}.canvas{position:relative;height:100%;overflow:hidden auto;scrollbar-width:thin;overscroll-behavior:contain}.ls-board:has(>.canvas){padding:0;overflow:hidden}.ls-board:has(>.board-host){display:flex;flex-direction:column;padding:0;overflow:hidden}.board-host{position:relative;flex:1 1 0;min-height:0}.ls-note{padding:var(--s-2) var(--s-3) 0}.world{position:relative;padding:var(--s-4) var(--s-3) var(--s-8);overflow-x:clip}@container vp (min-width: 680px){.world{padding:var(--s-5) var(--s-6) var(--s-10)}}.canvas .space{display:flex;flex-wrap:wrap;align-items:flex-start;gap:var(--s-5);margin-bottom:var(--s-4)}.col{display:flex;flex-direction:column;gap:var(--s-3);min-width:0}.col-main{flex:1 1 320px}.col-visual{flex:0 1 440px;width:100%;max-width:440px}.item{position:relative;width:fit-content;max-width:100%;border-radius:var(--r-sm);font-family:var(--font-hand);font-size:clamp(19px,2.2cqw,26px);line-height:1.35;cursor:pointer;overflow-wrap:anywhere}.item:hover{background:var(--accent-soft)}.item .body{position:relative;z-index:1}.item h1{margin:0;font-size:clamp(25px,3cqw,36px);font-weight:700;line-height:1.25}.item h2{margin:0;font-size:clamp(21px,2.5cqw,28px)}.item ol,.item ul{margin:var(--s-1) 0;padding-left:26px}.item.latex{font-size:clamp(19px,2cqw,24px)}.item.figure{width:100%;max-width:440px}.item.figure svg{display:block;width:100%;height:auto;max-height:min(260px,44cqh);background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);font-family:var(--font-hand)}.ch{opacity:0}.hw{position:absolute;z-index:2;pointer-events:none}.mark{position:absolute;z-index:0;opacity:.4;border-radius:3px}.ring{position:absolute;z-index:2;overflow:visible;pointer-events:none}.pencil{position:absolute;left:0;top:0;z-index:5;opacity:0;pointer-events:none;transition:opacity var(--d-fast);transform-origin:5px 38px}.vp[data-board=plain] .ls{background-image:none}.vp[data-board=grid] .ls{background-image:linear-gradient(var(--board-dot) 1px,transparent 1px),linear-gradient(90deg,var(--board-dot) 1px,transparent 1px);background-size:22px 22px}.vp[data-board=chalk]{--board: #1f3b34;--board-ink: #eef4ea;--board-dot: #2d4c44}.vp[data-board=chalk] .al-beats i{background:#fff3}.vp[data-board=chalk] .al-beats i[data-s=done]{background:#9fd0ba}.vp[data-board=chalk] .al-beats i[data-s=cur]{background:var(--board-ink)}.tutor{display:flex;align-items:flex-end;justify-content:center;width:100%;height:100%}.tutor img{display:block;width:100%;height:100%;object-fit:contain;object-position:bottom;transform-origin:50% 100%;transition:transform var(--d-slow) var(--ease)}.tutor[data-state=talking] img{animation:al-nod .9s ease-in-out infinite}.tutor[data-state=writing] img{transform:translate(-3%)}@keyframes al-nod{50%{transform:translateY(1.4%) scale(1.012)}}@media(prefers-reduced-motion:reduce){.tutor[data-state=talking] img{animation:none}}.cap-host{height:100%}.cap-host .off{opacity:0}.ask-row{display:flex;gap:2px}.ask-row .al-menuitem{width:auto;min-height:var(--h-sm);font-size:var(--t-13);white-space:nowrap}.first-title{pointer-events:none}.first-title .world{padding:0}.first-title .item{cursor:default}.first-title .item:hover{background:none}.first-title .item h1{font-size:clamp(28px,3.6cqw,48px)}.card-faces{display:flex;flex-wrap:wrap;gap:var(--s-2)}.card-face{min-width:160px;max-width:100%;min-height:80px;padding:var(--s-3);border:1px solid var(--line-strong);border-radius:var(--r-md);background:var(--surface);color:var(--ink);font:inherit;font-size:var(--t-13);text-align:left;cursor:pointer}.card-face[aria-pressed=true]{background:var(--accent-soft)}.takeaways{margin:0;padding-left:20px}.takeaways li{margin-bottom:var(--s-2)}.page__main>h2{margin:var(--s-2) 0 0;font-size:var(--t-15)}.page--3 .page__tabbar{grid-template-columns:repeat(3,1fr)}.lesson-row{display:flex;align-items:center;gap:var(--s-1);min-width:0}.lesson-row .al-row{flex:1 1 0;min-width:0}.path:disabled{opacity:.5;cursor:not-allowed}.quiz-row:disabled{cursor:default;color:var(--ink)}.ls-dock .scrub{flex:1 1 0;min-width:0}.embed-note{display:flex;flex-direction:column;gap:var(--s-3);align-items:center;justify-content:center;height:100%;padding:var(--s-6);text-align:center}.source-btn{max-width:min(220px,30cqw);overflow:hidden;white-space:nowrap;text-overflow:ellipsis;display:block}@container vp (max-width: 679px){.source-btn{max-width:96px}.ls-top:has(.source-btn) .al-beats{display:none}}.con-login{display:flex;flex-direction:column;gap:var(--s-5);width:min(380px,calc(100% - 32px));margin:0 auto;justify-content:center;height:100%}.con-login form{display:flex;flex-direction:column;gap:var(--s-3)}.code-val--long{font-size:var(--t-13);overflow-wrap:anywhere;letter-spacing:0}.drop__img{max-height:220px;max-width:100%;border-radius:var(--r-md);object-fit:contain}.brand-sample{font-size:28px;line-height:1.4;color:var(--board-ink)}.con__main .snippet{white-space:pre-wrap;overflow-wrap:anywhere}.con__main .stats{grid-template-columns:repeat(auto-fit,minmax(130px,1fr))}.cand--wait{aspect-ratio:1;overflow:hidden;border-radius:var(--r-md);background:var(--surface-3)}.con__main .bars{display:flex}.con__main .bars span{flex:1 1 0;min-width:0;max-width:none}.page__bar[hidden]{display:none}