@font-face{font-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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-display:block;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{text-indent:0;text-rendering:auto;font:1.21em/1.2 KaTeX_Main,Times New Roman,serif;position:relative}.katex *{border-color:currentColor;-ms-high-contrast-adjust:none!important}.katex .katex-version:after{content:"0.18.7"}.katex .katex-mathml{clip-path:inset(50%);border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.katex .katex-html>.katex-newline{display:block}.katex .katex-base{white-space:nowrap;width:min-content;position:relative}.katex .katex-base,.katex .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;table-layout:fixed;display:inline-table}.katex .vlist-r{display:table-row}.katex .vlist{vertical-align:bottom;display:table-cell;position:relative}.katex .vlist>span{height:0;display:block;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{width:0;overflow:hidden}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{vertical-align:bottom;width:2px;min-width:2px;font-size:1px;display:table-cell}.katex .katex-vbox{flex-direction:column;align-items:baseline;display:inline-flex}.katex .katex-thinbox{flex-direction:row;width:0;max-width:0;display:inline-flex}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .katex-hdashline,.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-rule,.katex .katex-underline .underline-line,.katex .mfrac .frac-line{min-height:1px}.katex .mspace{display:inline-block}.katex .katex-smash{line-height:0;display:inline}.katex .clap,.katex .llap,.katex .rlap{width:0;position:relative}.katex .clap>.katex-inner,.katex .llap>.katex-inner,.katex .rlap>.katex-inner{position:absolute}.katex .clap>.katex-fix,.katex .llap>.katex-fix,.katex .rlap>.katex-fix{display:inline-block}.katex .llap>.katex-inner{right:0}.katex .clap>.katex-inner,.katex .rlap>.katex-inner{left:0}.katex .clap>.katex-inner>span{margin-left:-50%;margin-right:50%}.katex .katex-rule{border:0 solid;display:inline-block;position:relative}.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-underline .underline-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .katex-hdashline{border-bottom-style:dashed;width:100%;display:inline-block}.katex .sqrt>.katex-root{margin-left:.277778em;margin-right:-.555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .katex-sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .katex-sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .katex-sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .katex-sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .katex-sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .katex-sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .katex-sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .katex-sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .katex-sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .katex-sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .katex-sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .katex-sizing.reset-size2.size1{font-size:.833333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .katex-sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .katex-sizing.reset-size2.size3{font-size:1.16667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .katex-sizing.reset-size2.size4{font-size:1.33333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .katex-sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .katex-sizing.reset-size2.size6{font-size:1.66667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .katex-sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .katex-sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .katex-sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .katex-sizing.reset-size2.size10{font-size:3.45667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .katex-sizing.reset-size2.size11{font-size:4.14667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .katex-sizing.reset-size3.size1{font-size:.714286em}.katex .fontsize-ensurer.reset-size3.size2,.katex .katex-sizing.reset-size3.size2{font-size:.857143em}.katex .fontsize-ensurer.reset-size3.size3,.katex .katex-sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .katex-sizing.reset-size3.size4{font-size:1.14286em}.katex .fontsize-ensurer.reset-size3.size5,.katex .katex-sizing.reset-size3.size5{font-size:1.28571em}.katex .fontsize-ensurer.reset-size3.size6,.katex .katex-sizing.reset-size3.size6{font-size:1.42857em}.katex .fontsize-ensurer.reset-size3.size7,.katex .katex-sizing.reset-size3.size7{font-size:1.71429em}.katex .fontsize-ensurer.reset-size3.size8,.katex .katex-sizing.reset-size3.size8{font-size:2.05714em}.katex .fontsize-ensurer.reset-size3.size9,.katex .katex-sizing.reset-size3.size9{font-size:2.46857em}.katex .fontsize-ensurer.reset-size3.size10,.katex .katex-sizing.reset-size3.size10{font-size:2.96286em}.katex .fontsize-ensurer.reset-size3.size11,.katex .katex-sizing.reset-size3.size11{font-size:3.55429em}.katex .fontsize-ensurer.reset-size4.size1,.katex .katex-sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .katex-sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .katex-sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .katex-sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .katex-sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .katex-sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .katex-sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .katex-sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .katex-sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .katex-sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .katex-sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .katex-sizing.reset-size5.size1{font-size:.555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .katex-sizing.reset-size5.size2{font-size:.666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .katex-sizing.reset-size5.size3{font-size:.777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .katex-sizing.reset-size5.size4{font-size:.888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .katex-sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .katex-sizing.reset-size5.size6{font-size:1.11111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .katex-sizing.reset-size5.size7{font-size:1.33333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .katex-sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .katex-sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .katex-sizing.reset-size5.size10{font-size:2.30444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .katex-sizing.reset-size5.size11{font-size:2.76444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .katex-sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .katex-sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .katex-sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .katex-sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .katex-sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .katex-sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .katex-sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .katex-sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .katex-sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .katex-sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .katex-sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .katex-sizing.reset-size7.size1{font-size:.416667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .katex-sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .katex-sizing.reset-size7.size3{font-size:.583333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .katex-sizing.reset-size7.size4{font-size:.666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .katex-sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .katex-sizing.reset-size7.size6{font-size:.833333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .katex-sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .katex-sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .katex-sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .katex-sizing.reset-size7.size10{font-size:1.72833em}.katex .fontsize-ensurer.reset-size7.size11,.katex .katex-sizing.reset-size7.size11{font-size:2.07333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .katex-sizing.reset-size8.size1{font-size:.347222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .katex-sizing.reset-size8.size2{font-size:.416667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .katex-sizing.reset-size8.size3{font-size:.486111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .katex-sizing.reset-size8.size4{font-size:.555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .katex-sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .katex-sizing.reset-size8.size6{font-size:.694444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .katex-sizing.reset-size8.size7{font-size:.833333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .katex-sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .katex-sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .katex-sizing.reset-size8.size10{font-size:1.44028em}.katex .fontsize-ensurer.reset-size8.size11,.katex .katex-sizing.reset-size8.size11{font-size:1.72778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .katex-sizing.reset-size9.size1{font-size:.289352em}.katex .fontsize-ensurer.reset-size9.size2,.katex .katex-sizing.reset-size9.size2{font-size:.347222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .katex-sizing.reset-size9.size3{font-size:.405093em}.katex .fontsize-ensurer.reset-size9.size4,.katex .katex-sizing.reset-size9.size4{font-size:.462963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .katex-sizing.reset-size9.size5{font-size:.520833em}.katex .fontsize-ensurer.reset-size9.size6,.katex .katex-sizing.reset-size9.size6{font-size:.578704em}.katex .fontsize-ensurer.reset-size9.size7,.katex .katex-sizing.reset-size9.size7{font-size:.694444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .katex-sizing.reset-size9.size8{font-size:.833333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .katex-sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .katex-sizing.reset-size9.size10{font-size:1.20023em}.katex .fontsize-ensurer.reset-size9.size11,.katex .katex-sizing.reset-size9.size11{font-size:1.43981em}.katex .fontsize-ensurer.reset-size10.size1,.katex .katex-sizing.reset-size10.size1{font-size:.24108em}.katex .fontsize-ensurer.reset-size10.size2,.katex .katex-sizing.reset-size10.size2{font-size:.289296em}.katex .fontsize-ensurer.reset-size10.size3,.katex .katex-sizing.reset-size10.size3{font-size:.337512em}.katex .fontsize-ensurer.reset-size10.size4,.katex .katex-sizing.reset-size10.size4{font-size:.385728em}.katex .fontsize-ensurer.reset-size10.size5,.katex .katex-sizing.reset-size10.size5{font-size:.433944em}.katex .fontsize-ensurer.reset-size10.size6,.katex .katex-sizing.reset-size10.size6{font-size:.48216em}.katex .fontsize-ensurer.reset-size10.size7,.katex .katex-sizing.reset-size10.size7{font-size:.578592em}.katex .fontsize-ensurer.reset-size10.size8,.katex .katex-sizing.reset-size10.size8{font-size:.694311em}.katex .fontsize-ensurer.reset-size10.size9,.katex .katex-sizing.reset-size10.size9{font-size:.833173em}.katex .fontsize-ensurer.reset-size10.size10,.katex .katex-sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .katex-sizing.reset-size10.size11{font-size:1.19961em}.katex .fontsize-ensurer.reset-size11.size1,.katex .katex-sizing.reset-size11.size1{font-size:.200965em}.katex .fontsize-ensurer.reset-size11.size2,.katex .katex-sizing.reset-size11.size2{font-size:.241158em}.katex .fontsize-ensurer.reset-size11.size3,.katex .katex-sizing.reset-size11.size3{font-size:.281351em}.katex .fontsize-ensurer.reset-size11.size4,.katex .katex-sizing.reset-size11.size4{font-size:.321543em}.katex .fontsize-ensurer.reset-size11.size5,.katex .katex-sizing.reset-size11.size5{font-size:.361736em}.katex .fontsize-ensurer.reset-size11.size6,.katex .katex-sizing.reset-size11.size6{font-size:.401929em}.katex .fontsize-ensurer.reset-size11.size7,.katex .katex-sizing.reset-size11.size7{font-size:.482315em}.katex .fontsize-ensurer.reset-size11.size8,.katex .katex-sizing.reset-size11.size8{font-size:.578778em}.katex .fontsize-ensurer.reset-size11.size9,.katex .katex-sizing.reset-size11.size9{font-size:.694534em}.katex .fontsize-ensurer.reset-size11.size10,.katex .katex-sizing.reset-size11.size10{font-size:.833601em}.katex .fontsize-ensurer.reset-size11.size11,.katex .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{width:.12em;display:inline-block}.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 .katex-accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .katex-accent .accent-body{position:relative}.katex .katex-accent .accent-body:not(.accent-full){width:0}.katex .katex-overlay{display:block}.katex .mtable .vertical-separator{min-width:1px;display:inline-block}.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;height:inherit;width:100%;display:block;position:absolute}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;min-width:0;max-width:none;min-height:0;max-height:none}.katex .katex-stretchy{width:100%;display:block;position:relative;overflow:hidden}.katex .katex-stretchy:after,.katex .katex-stretchy:before{content:""}.katex .hide-tail{width:100%;position:relative;overflow:hidden}.katex .halfarrow-left{width:50.2%;position:absolute;left:0;overflow:hidden}.katex .halfarrow-right{width:50.2%;position:absolute;right:0;overflow:hidden}.katex .brace-left{width:25.1%;position:absolute;left:0;overflow:hidden}.katex .brace-center{width:50%;position:absolute;left:25%;overflow:hidden}.katex .brace-right{width:25.1%;position:absolute;right:0;overflow:hidden}.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{box-sizing:border-box;border:.04em solid}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .katex-sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{box-sizing:border-box;border-top:.049em solid;border-right:.049em solid;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .reflectbox{display:inline-block;transform:scaleX(-1)}.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{text-align:left;display:inline-block;position:absolute;right:calc(50% + .3em)}.katex .cd-label-right{text-align:right;display:inline-block;position:absolute;left:calc(50% + .3em)}.katex-display{text-align:center;margin:1em 0;display:block}.katex-display>.katex{text-align:center;white-space:nowrap;display:block}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.katex-tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.katex-tag{left:0;right:auto}.katex-display.fleqn>.katex{text-align:left;padding-left:2em}body{counter-reset:katexEqnNo mmlEqnNo}:root{color:#35404a;font-synthesis:none;--accent:#315fa0;--muted:#78828c;--line:#dfe3e8;background:#f5f6f8;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:15px}*{box-sizing:border-box}.grading-toasts{top:max(20px, env(safe-area-inset-top));z-index:100;width:min(420px,100vw - 40px);position:fixed;right:20px}.grading-toast{border:1px solid var(--line);background:#fff;border-radius:8px;align-items:center;gap:12px;padding:12px 14px;font-size:.85rem;display:flex;box-shadow:0 4px 20px #253a4326}.grading-toast span{flex:1}.grading-toast.incorrect{color:#b34e4e;background:#fff8f8;border-color:#b34e4e40}.grading-toast.incorrect .icon-button{color:inherit}body{margin:0}button,input,select,textarea{font:inherit}button,.button{border:1px solid var(--line);color:#36577f;cursor:pointer;white-space:nowrap;background:#f4f5f7;border-radius:5px;justify-content:center;align-items:center;gap:5px;padding:5px 10px;font-size:.8rem;line-height:1.5;text-decoration:none;display:inline-flex}button:hover,.button:hover{background:#e9eff7}button:disabled{opacity:.4;cursor:default}button:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.primary{background:var(--accent);color:#fff;border-color:var(--accent)}.primary:hover{background:#244b81}.selected,[aria-pressed=true]{color:#315fa0;background:#e9eff7}.toolbar{flex-wrap:wrap;align-items:center;gap:7px;margin:8px 0;display:flex}.push{margin-left:auto}.muted,small{color:var(--muted);font-size:.8rem}.eyebrow,label{letter-spacing:.08em;color:var(--muted);font-size:.7rem}.eyebrow{text-transform:uppercase}.app{height:var(--visible-height,100dvh);display:flex;overflow:hidden}.sidebar{background:#f1f3f5;flex-direction:column;flex-shrink:0;width:245px;padding:25px 20px;display:flex}.brand{color:var(--accent);align-items:center;gap:12px;font-family:Georgia,serif;font-size:30px;display:flex}.course{margin:38px 0 16px}.course h3{color:#252b33;margin:10px 0;font-size:15px}.chapters{flex-direction:column;flex:1;gap:5px;display:flex;overflow-y:auto}.chapters button{text-align:left;white-space:normal;background:0 0;border:0;justify-content:flex-start;gap:15px;padding:12px 10px;font-size:.88rem}.chapters button.selected{background:#fff;font-weight:600}.chapters span{color:var(--muted);font-size:.75rem}.sidebar small{padding-top:15px;line-height:1.7}.workspace{flex-direction:column;flex:1;min-width:0;display:flex}.topbar{border-bottom:1px solid var(--line);flex-shrink:0;align-items:center;gap:15px;min-height:72px;padding:15px 25px;display:flex}.chapter-title{color:#252b33;flex-direction:column;gap:5px;display:flex}.chapter-title strong{font-size:16px}.tabs{gap:4px;margin-left:auto;display:flex}.tabs button,.settings-button,.statusbar button{background:0 0;border:0}.tabs button{padding:7px 12px;font-size:.85rem}.tabs .selected{background:#e9eff7}.settings-button{gap:7px}.body-layout{flex:1;min-height:0;display:flex}.reader{scroll-behavior:auto;overscroll-behavior:contain;flex:1;min-width:0;overflow:auto}.reading-column{max-width:900px;margin:0 auto;padding:32px 24px 80px}.lesson-intro{padding:15px 12px 25px}h1,h2{color:#303b49;font-family:Georgia,Times New Roman,serif;font-weight:400}h1{font-size:2rem;line-height:1.2}h2{margin:0 0 18px;font-size:1.65rem}h3{font-size:1rem;font-weight:600}.teaching{background:#fff;border-radius:9px;margin:18px 0;padding:25px 28px}.rich{overflow-wrap:anywhere;line-height:1.72}.rich p{margin:0 0 .85em}.rich p:last-child{margin-bottom:0}.rich ul,.rich ol{margin:.6em 0;padding-left:1.5em}.rich li::marker{font-size:.85em}.rich h3{margin:1.1em 0 .5em}.rich h1{font-size:1.7rem}.rich table,table{border-collapse:collapse;max-width:100%;font-size:.88rem}.rich table{margin:12px 0;display:block;overflow-x:auto}td,th{border:1px solid var(--line);padding:5px 12px}pre{white-space:pre-wrap;overflow-wrap:anywhere;background:#eef0f3;border-radius:4px;padding:10px;font-size:.85rem}code{font-family:ui-monospace,monospace}.term{font:inherit;color:var(--accent);text-underline-offset:3px;white-space:normal;border:0;border-radius:0;padding:0;text-decoration:underline;display:inline;background:0 0!important}.term.repeat{text-decoration:none}.math-display,.katex-display{padding:4px 0;display:block;overflow:auto hidden}.math-inline .katex{font-size:1.08em}.reader-outline-bar{display:none}.page-outline{flex-shrink:0;width:210px;padding:27px 14px;overflow:auto}.page-outline button{text-align:left;white-space:normal;color:#6d7885;background:0 0;border:0;border-left:2px solid #0000;border-radius:0;width:100%;margin:5px 0;padding:6px 10px;font-size:.77rem;display:block}.page-outline button.selected{border-left-color:var(--accent);color:var(--accent);background:#e9eff7}.page-outline .eyebrow{margin:0 10px 17px;display:block}.statusbar{color:var(--muted);flex-shrink:0;justify-content:space-between;align-items:center;padding:3px 22px;font-size:.7rem;display:flex}.statusbar button{padding:4px;font-size:.7rem}.outline-toggle,.mobile-only{display:none}.exercise{background:#fff;border:1px solid #dfe3e8;border-radius:6px;margin:18px 0;padding:18px 20px}.exercise>.eyebrow,.exercise-heading>.eyebrow{letter-spacing:0;text-transform:none;margin-bottom:12px;font-size:.75rem;display:block}.exercise.correct{border-color:#9eb5d5}.exercise.incorrect{border-color:#d1a39a}.exercise>.rich{margin:8px 0}.exercise details{margin-top:12px}summary{cursor:pointer;color:var(--accent);padding:7px 0;font-size:.8rem}details>.rich{margin-top:8px}.attempt-status{flex-wrap:wrap;align-items:center;gap:8px;margin:12px 0 8px;font-size:.8rem;display:flex}.attempt-status time{color:var(--muted);font-size:.7rem}.attempt-status strong{font-weight:500}.correct .attempt-status strong{color:#315fa0}.incorrect .attempt-status strong{color:#9d4f43}.submitted{border:1px solid var(--line);background:#f7f8fa;border-radius:4px;padding:10px 12px}.feedback{background:#f1f5fa;border-radius:4px;margin:8px 0;padding:10px 12px;font-size:.93rem}.transcription p,.transcription li{white-space:pre-line}.transcription .katex{white-space:normal}.submitted-images{max-height:165px;overflow:auto}.response-image{object-fit:contain;max-width:100%;height:auto;max-height:75dvh;margin:auto;display:block}.submitted-images img{max-height:145px}.review-loading{color:var(--muted);align-items:center;gap:.6rem;display:flex}.spinner{border:2px solid #d9e2ef;border-top-color:var(--accent);border-radius:50%;width:14px;height:14px;animation:.8s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.menu-anchor{position:relative}.menu{z-index:10;border:1px solid var(--line);background:#fff;border-radius:6px;min-width:185px;padding:5px;position:absolute;top:100%;left:0;box-shadow:0 5px 25px #23304725}.menu button{text-align:left;background:0 0;border:0;justify-content:flex-start;width:100%;padding:9px}.editor-columns{grid-template-columns:1fr 1fr;gap:10px;display:grid}.editor-input{min-width:0}.editor-box,.preview{border:1px solid var(--line);background:#fff;border-radius:4px;min-width:0;padding:10px 12px}.editor-box label,.preview label{text-transform:uppercase;letter-spacing:.1em;margin-bottom:6px;display:block}.preview{background:#f6f7f9;min-height:70px}.cm-editor{min-height:110px;font-size:.95rem}.cm-content{caret-color:var(--accent);padding:4px 0;font-family:ui-monospace,monospace;line-height:1.6}.cm-focused{outline:none!important}.cm-scroller{overflow:auto}.tex-command{color:#215ca0}.tex-delimiter{color:#884ca1;font-weight:600}.tex-brace{color:#916322}.tex-script{color:#a03f58}.tex-operator{color:#315fa0}.submit{margin-bottom:0}.modes{margin-top:14px}.typing{margin:8px 10px;font-size:.85rem}.typing article{border-bottom:1px solid var(--line);padding:12px 0}.figure{border:1px solid var(--line);background:#f7f8fa;border-radius:6px;margin:20px 0;padding:14px}.chapters>div>button{width:100%}.figure-title{justify-content:space-between;align-items:center;gap:10px;font-size:.87rem;display:flex}.chart{max-width:570px;margin:8px auto}.chart svg{width:100%;max-height:285px}.svg-label{text-align:center;color:#344459;font-size:17px}.figure figcaption{font-size:.86rem}.figure details{font-size:.8rem}.figure svg text{fill:#35404a;font-family:system-ui;font-size:13px}.matrix{font-size:12px}.practice-nav{align-items:center;gap:8px;margin:4px 0 20px;display:flex}.practice-nav select{flex:1;min-width:0}.choices{flex-direction:column;margin:10px 0;display:flex}.choice-row{cursor:pointer;align-items:flex-start;gap:10px;width:100%;min-height:44px;padding:9px 0;display:flex}.choice-row+.choice-row{border-top:1px solid var(--line)}.choice-row input{width:17px;height:17px;accent-color:var(--accent);cursor:pointer;flex:none;margin:4px 0 0}.choice-text{flex:1;min-width:0}.choice-text .rich>:first-child{margin-top:0}.choice-text .rich>:last-child{margin-bottom:0}.library{max-width:950px;margin:auto;padding:30px}.reference-list{grid-template-columns:1fr 1fr;gap:12px;margin-top:20px;display:grid}.reference-list button{text-align:left;white-space:normal;background:#fff;padding:15px;display:block}.reference-list .rich{margin-top:6px;font-size:.8rem}.reference-panel{border-left:1px solid var(--line);background:#fff;flex-shrink:0;width:370px;padding:15px 22px;overflow:auto}.reference-panel header{justify-content:space-between;margin-bottom:18px;display:flex}.reference-entry{font-size:.9rem}.scrim{height:var(--visible-height,100dvh);z-index:50;background:#202b3b40;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0 0 auto}.modal{border:1px solid var(--line);width:min(560px,100%);max-height:calc(var(--visible-height,100dvh) - 40px);background:#fff;border-radius:10px;flex-direction:column;display:flex;box-shadow:0 10px 50px #23304725}.modal.wide{width:min(1100px,100%)}.modal>header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:10px;padding:14px 20px;display:flex}.modal h2{margin:0;font-family:inherit;font-size:1rem;font-weight:500}.modal-body{min-height:0;padding:20px;overflow:auto}.modal-body>svg{width:100%;max-height:65dvh}.modal-body .brand,.modal-body .course{display:none}.modal-body .chapters{max-height:70dvh}.modal-body>.toolbar{margin-top:12px}.outline-sheet{flex-direction:column;gap:5px;display:flex}.outline-sheet button{white-space:normal;text-align:left;justify-content:flex-start}input:not([type=checkbox]):not([type=radio]):not([type=color]),textarea,select{color:inherit;background:#fff;border:1px solid #d6dee8;border-radius:4px;padding:8px 10px}input:not([type=checkbox]):not([type=radio]):not([type=color]),textarea{width:100%;margin:7px 0 12px}textarea{resize:vertical;min-height:130px}label.check{letter-spacing:0;color:inherit;align-items:center;gap:8px;margin:12px 0;font-size:.87rem;display:flex}input[type=color]{border:0;width:25px;height:26px;padding:0}.syntax-list article{border-bottom:1px solid var(--line);align-items:center;gap:14px;padding:12px 0;display:flex}.syntax-list article>div{flex:1}.syntax-list p{font-size:.85rem}.ink-scroll{border:1px solid var(--line);background-color:#fff;background-image:radial-gradient(#dfe3e8 .7px,#0000 .7px);background-size:16px 16px;max-height:290px;overflow:auto}.ink-scroll canvas{width:100%;display:block}.photo{border:1px solid var(--line);margin:10px 0;padding:8px}.photo .response-image{max-height:200px}.image-button{background:0 0;border:0;width:100%;padding:0;display:block}.error{color:#9d4136;font-size:.85rem}.history-item{border-bottom:1px solid var(--line);padding:10px 0 20px}.loading{max-width:550px;margin:20vh auto;padding:20px}.update-banner{text-align:center;background:#e9eff7;padding:8px;font-size:.8rem}footer{padding:20px 0}hr{border:0;border-top:1px solid var(--line);margin:20px 0}@media (width>=1750px){.reading-column{max-width:980px}.page-outline{width:240px}.sidebar{width:275px}}@media (width<=1250px){.reader-outline-bar{justify-content:flex-end;padding:4px 16px;display:flex}.page-outline{display:none}.outline-toggle{display:inline-flex}.sidebar{width:215px}.reading-column{padding:25px 20px}.topbar{padding:12px 20px}.tabs button{padding:5px 8px}.reference-panel{z-index:30;position:absolute;top:75px;bottom:25px;right:0;box-shadow:-5px 0 25px #23304720}}@media (width<=839px),(height<=480px){.reader-outline-bar{justify-content:flex-end;padding:4px 16px;display:flex}.sidebar{display:none}.mobile-only{display:inline-flex}.topbar{flex-wrap:wrap;gap:10px;padding:10px 15px}.chapter-title{flex:1}.chapter-title .eyebrow{display:none}.chapter-title strong{font-size:14px}.tabs{order:3;width:100%;margin:0}.tabs button{padding:5px 12px}.settings-button span{display:none}.reading-column{padding:15px 14px 45px}.teaching{padding:20px}.page-outline{display:none}.outline-toggle{display:inline-flex}.editor-columns{grid-template-columns:1fr}.editor-columns>.preview{grid-row:1}.reference-panel{z-index:40;width:100%;padding:20px;position:fixed;inset:0}.library{padding:22px 18px}.reference-list{grid-template-columns:1fr}.exercise{padding:15px}.lesson-intro{padding:12px 6px}.statusbar{padding:4px 12px}.modal-body{padding:15px}.scrim{padding:10px}.modal{max-height:calc(var(--visible-height,100dvh) - 20px)}.modal.wide{width:100%;height:calc(var(--visible-height,100dvh) - 20px)}.brand{font-size:25px}}@media (width<=400px){:root{font-size:14px}.teaching{padding:17px}.reading-column{padding:12px 10px 40px}.exercise{padding:12px}.practice-nav button,.settings-button{padding:5px}.reference-list{gap:8px}}@media (prefers-reduced-motion:reduce){.reader{scroll-behavior:auto}.spinner{animation-duration:1.8s}}.popover-scrim{background:0 0}.popover-scrim .modal{box-shadow:0 6px 28px #23304733}.popover-scrim .modal-body{font-size:.9rem}.figure-table{margin:10px auto;overflow:auto}.figure-table table{margin:auto}.figure-table td{text-align:center}.predicate-table{padding:3px;font-size:1rem}.predicate-table th,.predicate-table td{text-align:center;min-width:4rem;padding:8px 14px}.predicate-table caption{margin-bottom:8px}.predicate-table .highlighted{outline-offset:-2px;background:#e5edf8;outline:2px solid #315fa0}.predicate-table p{text-align:center;margin:10px 0 0;font-size:.85rem}@media (width<=600px){.svg-label{font-size:26px}}*{scrollbar-width:thin;scrollbar-color:#c3c8ce transparent}::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#c3c8ce;border-radius:8px}.chapters{gap:1px}.chapters button{padding:7px 10px;line-height:1.35}.exercise-sidebar-slot{display:contents}.practice-sidebar{border-left:1px solid var(--line);flex-shrink:0;width:230px;padding:26px 18px;overflow:auto}.practice-summary{color:var(--muted);margin:8px 0 20px;font-size:.78rem}.exercise-group{color:#66717c;margin:20px 0 7px;font:600 .75rem/1.4 system-ui}.exercise-link{background:0 0;border:0;border-left:2px solid #0000;border-radius:0;justify-content:space-between;align-items:center;gap:8px;width:100%;margin:1px 0;padding:7px 8px;font-size:.8rem;display:flex}.exercise-link.selected{border-left-color:var(--accent);color:var(--accent);background:#e9eff7}.progress-state{color:#78828c;flex-shrink:0;font-size:.69rem;display:inline-flex}.progress-state.complete{color:var(--accent)}.practice-heading{justify-content:space-between;align-items:center;font-size:.8rem;display:flex}.practice-nav{justify-content:space-between;margin:12px 0 24px}.exercise-nav-toggle{display:none}@media (width<=1100px),(height<=480px){.practice-sidebar{display:none}.exercise-nav-toggle{display:inline-flex}}.progress-state.incorrect{color:#b34e4e}.auth-page{place-items:center;min-height:100dvh;padding:24px;display:grid}.auth-card{border:1px solid var(--line);background:#fff;border-radius:8px;width:min(100%,360px);padding:28px}.auth-card h1{margin:28px 0 20px;font:600 1.25rem system-ui}.auth-card label{margin:16px 0;font-size:.85rem;display:block}.auth-card input{width:100%;margin-top:6px;padding:10px}.password-field{position:relative}.password-field input{padding-right:44px}.password-field button{background:0 0;border:0;position:absolute;top:11px;right:5px}.auth-card>.primary{width:100%;margin-top:8px}.auth-card .brand{font-size:1.6rem}.analytics{max-width:1100px;margin:0 auto;padding:16px}.analytics h1{margin:0 0 16px;font-size:1.4rem}.analytics h2{margin-top:24px;font-size:1.08rem}.analytics h3{font-size:1rem}.analytics p,.analytics table{font-size:.88rem}.analytics details{margin:10px 0}.analytics summary{cursor:pointer;padding:6px 0}.evidence-metrics{grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin:16px 0;display:grid}.evidence-metrics>div{border:1px solid var(--line);background:#fff;border-radius:6px;padding:12px}.evidence-metrics strong,.evidence-metrics span{display:block}.evidence-metrics span{margin-top:6px;font-size:.8rem}.evidence-scroll{overflow-x:auto}.evidence-scroll table{width:100%}.evidence-scroll th,.evidence-scroll td{padding:8px}.concept-detail,.evidence-attempt{border-left:2px solid var(--line);padding:6px 12px}.concept-detail,.concept-evidence{scroll-margin-top:16px}.concept-evidence th{text-align:left}.concept-evidence th button{white-space:normal;text-align:left;background:0 0;border:0;width:100%;min-height:36px;padding:4px 0;font-weight:500;line-height:1.4;display:block}@media (width<=600px){.concept-evidence th:nth-child(n+4),.concept-evidence td:nth-child(n+4){display:none}.concept-evidence th:first-child{width:50%}.concept-evidence th,.concept-evidence td{padding:6px}}.attention-list{margin:8px 0 24px;display:grid}.attention-list>button{border:0;border-bottom:1px solid var(--line);white-space:normal;text-align:left;background:0 0;border-radius:0;flex-direction:column;align-items:flex-start;gap:4px;width:100%;padding:12px 0;line-height:1.4;display:flex}.attention-list strong{font-weight:500}.attention-list span{color:var(--muted);font-size:.82rem}.concept-evidence td:nth-child(2),.concept-evidence td:nth-child(3){white-space:nowrap;font-variant-numeric:tabular-nums}.content-sources{color:#596575;margin:.75rem 0 0;font-size:.8667rem;line-height:1.5}.content-sources>summary{cursor:pointer;width:fit-content;font-size:inherit;padding:.25rem 0;font-weight:400}.content-sources>ul{margin:.5rem 0 0;padding:0 0 0 1rem}.content-sources>ul>li{margin:0 0 .75rem;padding:0}.content-sources .sources-note{font-size:inherit;margin:.5rem 0}.source-credit,.source-scope{margin-top:.15rem;display:block}.content-sources a{color:var(--accent,#315fa0);overflow-wrap:anywhere}.content-sources summary:focus-visible{outline:2px solid var(--accent,#315fa0);outline-offset:3px}.submission-actions{align-items:center;gap:14px;display:flex}.unsure-option{letter-spacing:normal;min-height:32px;color:inherit;cursor:pointer;align-items:center;gap:6px;font-size:.8rem;display:inline-flex}.unsure-option input{width:16px;height:16px;accent-color:var(--accent);margin:0}button.danger{color:#fff;background:#b33434;border-color:#b33434}button.danger:hover:not(:disabled){background:#922929;border-color:#922929}.exercise-heading{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.lesson-review{color:var(--accent);text-underline-offset:3px;font-size:.8rem}.progress-overview{grid-template-columns:1.5fr 1fr;gap:16px;margin-top:20px;display:grid}.progress-card{border:1px solid var(--line);background:#fff;border-radius:10px;min-width:0;padding:22px}.analytics .progress-card h2{margin:0 0 16px;font-family:inherit;font-size:.9rem}.progress-value{flex-wrap:wrap;align-items:baseline;gap:12px;margin-bottom:18px;display:flex}.progress-value>strong{letter-spacing:-.06em;color:#244d49;font-size:2.5rem;font-weight:650;line-height:1}.progress-value>span{font-size:.85rem}.completion-track,.accuracy-track{background:#e6eaf0;border-radius:5px;height:10px;display:flex;overflow:hidden}.completion-track{height:18px}.completion-track .completed,.progress-legend .completed{background:#367d70}.completion-track .in-progress,.progress-legend .in-progress{background:#c0933e}.completion-track .unattempted,.progress-legend .unattempted{background:#e6eaf0}.accuracy-track>span{border-radius:inherit;background:#537ab2;height:100%;display:block}.progress-legend{flex-wrap:wrap;gap:6px 14px;margin-top:12px;display:flex}.progress-legend button{white-space:normal;text-align:left;background:0 0;border:0;padding:6px 0}.progress-legend button[aria-pressed=true]{text-underline-offset:4px;text-decoration:underline}.progress-legend i{border-radius:2px;flex-shrink:0;width:9px;height:9px}.analytics .progress-card p{color:#616c77;margin-bottom:0;font-size:.78rem}.progress-context{flex-wrap:wrap;gap:6px 16px;display:flex}.progress-context>span{display:inline-block}.concept-chart{margin-top:28px;scroll-margin-top:16px}.concept-chart-rows{border:1px solid var(--line);background:#fff;border-radius:9px;overflow:hidden}.concept-chart-row{border:0;border-bottom:1px solid var(--line);text-align:left;white-space:normal;background:#fff;border-radius:0;grid-template-columns:1.15fr 1fr 1fr;gap:22px;width:100%;padding:17px 18px;display:grid}.concept-chart-row:last-child{border-bottom:0}.concept-chart-row[aria-expanded=true]{background:#edf3fa}.concept-chart-name,.concept-chart-result{gap:7px;display:grid}.concept-chart-name>strong{font-weight:600}.concept-chart-name>span,.concept-chart-result small{color:#616c77;font-size:.76rem}.concept-chart-result>span:first-child{font-variant-numeric:tabular-nums;font-weight:650}.concept-chart-result small{margin-left:5px;font-weight:400}.concept-signals{flex-wrap:wrap;gap:5px;display:flex}.concept-signals>span{color:#7b5418;background:#faf0da;border-radius:4px;padding:2px 7px;font-size:.73rem}.concept-signals>.neutral{color:#616c77;background:#f1f3f6}.show-concepts{margin-top:12px}.progress-exercises{border:1px solid var(--line);background:#fff;border-radius:8px;padding:16px}.analytics .progress-exercises h2{margin-top:0}.progress-exercises>div{gap:5px;max-height:260px;margin-top:10px;display:grid;overflow-y:auto}.progress-exercises>div>button{white-space:normal;text-align:left;justify-content:flex-start}.lesson-progress>button{white-space:normal;text-align:left;background:#fff;grid-template-columns:1fr auto;gap:8px;width:100%;margin-bottom:6px;padding:12px 16px;display:grid}.lesson-progress .accuracy-track{grid-column:1/-1;height:7px}.lesson-progress .accuracy-track>span{background:#367d70}.diagnostic-bars{gap:12px;max-width:650px;margin:20px 0;display:grid}.diagnostic-bars>div{grid-template-columns:170px 1fr 30px;align-items:center;gap:16px;font-size:.82rem;display:grid}.diagnostic-bars strong{text-align:right}.diagnostic-bars .accuracy-track>span{background:#b18a4f}@media (width<=700px){.progress-overview{grid-template-columns:1fr;gap:12px}.progress-card{padding:18px}.concept-chart-row{grid-template-columns:1fr;gap:12px;padding:16px}.concept-chart-result{gap:6px}.diagnostic-bars>div{grid-template-columns:130px 1fr 22px;gap:8px}}.review-heading{justify-content:space-between;align-items:center;gap:12px;display:flex}.review-heading h1{margin:4px 0 12px}.review-page{overflow-anchor:none}.review-page .practice-nav button:last-child{width:190px}.review-page .submission-actions .primary{min-width:100px}.review-page .review-loading{min-height:1lh}.review-plan-body{display:grid}.review-plan-body>*{grid-area:1/1}.review-plan-inactive{visibility:hidden}.review-answer-stage{display:flow-root}.review-answer-stage>.attempt{min-height:inherit;flex-direction:column;display:flex}.review-answer-stage .attempt-actions{margin-top:auto}.stable-attempt .attempt-status strong{min-width:12em}.attempt-status-spacer{width:14px;height:14px}.stable-attempt .feedback-toggle{min-width:108px}.stable-attempt .retry-answer{min-width:100px}.review-counts{grid-template-columns:repeat(3,1fr);gap:12px;margin:20px 0;display:grid}.review-counts>div{border:1px solid var(--line);border-radius:6px;padding:14px}.review-counts strong{color:var(--accent);font-size:1.7rem;display:block}.review-counts span{font-size:.8rem}.review-panel{border:1px solid var(--line);border-radius:6px;margin:24px 0;padding:18px}.review-panel h2{margin-top:0}.review-filters{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-bottom:16px;display:grid}.review-filters label{gap:5px;font-size:.85rem;display:grid}.review-filters select{width:100%;min-width:0}.review-notice{background:#edf2f8;border-radius:5px;padding:12px}.review-why{margin:12px 0;font-size:.85rem}.review-targets article{border-bottom:1px solid var(--line);padding:12px 0}.review-targets p{margin:5px 0}.review-library-page{max-width:1100px}.library-intro,.library-coverage>p{max-width:780px}.library-filter-panel{border:1px solid var(--line);background:#fff;border-radius:8px;margin:24px 0 18px;padding:16px}.library-search,.library-generator label{gap:6px;font-size:.85rem;display:grid}.library-search input,.library-generator input{width:100%;min-width:0}.library-filter-actions{margin:12px 0}.library-filter-actions .muted{font-size:.8rem}.library-filters>summary{font-size:.85rem}.library-filter-grid{grid-template-columns:repeat(4,minmax(0,1fr));margin:16px 0 0}.library-results-heading,.library-pagination{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;margin:16px 0;font-size:.85rem;display:flex}.library-results-heading p{margin:0}.library-results-heading [aria-pressed=true]{background:#e7edf5;border-color:#a5b5cb}.library-items{gap:10px;display:grid}.review-library-item{border:1px solid var(--line);background:#fff;border-radius:8px;min-width:0}.review-library-item>summary{overflow-wrap:anywhere;padding:15px 18px}.library-item-heading{font-size:.94rem}.library-prompt-preview{-webkit-line-clamp:2;-webkit-box-orient:vertical;max-height:3em;font-size:.84rem;line-height:1.5;display:-webkit-box;overflow:hidden}.library-prompt-preview .rich p,.library-prompt-preview p{margin:0}.library-objective,.library-item-origin{color:var(--muted);margin-top:5px;font-size:.78rem;display:block}.library-objective{color:#40536c}.library-badges{flex-wrap:wrap;gap:6px;margin:9px 0;font-size:.72rem;display:flex}.library-badges>span{background:#f0f3f6;border-radius:4px;padding:2px 7px}.library-item-body{border-top:1px solid var(--line);padding:0 18px 18px}.library-metadata{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px 18px;padding:2px 0 12px;font-size:.8rem;display:grid}.library-metadata dt,.library-parameters dt{color:var(--muted);font-size:.74rem}.library-metadata dd,.library-parameters dd{overflow-wrap:anywhere;margin:3px 0 0}.library-question-section,.library-generator{border-top:1px solid var(--line);margin-top:20px;padding-top:8px}.library-question>div{margin:14px 0}.library-question h4{color:var(--muted);margin:0 0 5px;font-size:.78rem;font-weight:500}.library-question .rich{font-size:.9rem}.library-choices{padding-left:24px}.library-choices>li{padding:9px 0}.library-choices code{font-size:.8rem}.library-correct{color:#276557;margin-left:10px;font-size:.74rem}.library-choice-feedback{margin-top:7px;font-size:.8rem}.library-answer{border-left:3px solid #b9cfc7;padding-left:12px}.library-generator form{gap:10px;display:grid}.library-generated-preview{overflow-wrap:anywhere;background:#f5f8fa;border-radius:6px;margin-top:18px;padding:14px}.library-generated-preview>p{font-size:.8rem}.library-parameters{flex-wrap:wrap;gap:16px;font-size:.85rem;display:flex}.library-table-scroll,.library-question-table{max-width:100%;overflow-x:auto}.library-coverage-table{background:#fff;width:100%;min-width:850px;font-size:.77rem}.library-coverage-table caption,.library-question-table caption{text-align:left;padding:6px 0 12px;font-size:.78rem}.library-coverage-table th,.library-coverage-table td{vertical-align:top;padding:10px 8px}.library-coverage-table td:not(:last-child){text-align:center;font-variant-numeric:tabular-nums}.library-coverage-table thead{background:#edf2f8}.library-target-button{white-space:normal;overflow-wrap:anywhere;text-align:left;font-weight:500;font-size:inherit;background:0 0;border:0;min-width:170px;padding:0}.library-observations{min-width:160px;color:var(--muted);margin:0;padding-left:14px}.library-observations li+li{margin-top:5px}.library-version{color:var(--muted);overflow-wrap:anywhere;margin-top:22px;font-size:.75rem}@media (width<=1000px){.library-filter-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=600px){.review-counts{gap:6px}.review-counts>div{padding:10px 8px}.review-filters{grid-template-columns:1fr}.review-heading{flex-wrap:wrap}.review-page .practice-heading{flex-wrap:wrap;gap:6px}.library-metadata{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.review-library-item>summary{padding:13px}.library-item-body{padding:0 13px 13px}.library-filter-grid{grid-template-columns:1fr}.library-generated-preview{padding:10px}}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.structured-answer{gap:14px;min-width:0;margin:12px 0;display:grid}.assessment-field,.answer-grid-wrap{min-width:0}.assessment-field>label,.assessment-field>.rich{margin-bottom:6px;display:block}.assessment-field>input{width:min(100%,32rem);min-height:44px}.assessment-field .rich>:first-child,.assessment-selection .rich>:first-child,.answer-grid .rich>:first-child{margin-top:0}.assessment-field .rich>:last-child,.assessment-selection .rich>:last-child,.answer-grid .rich>:last-child{margin-bottom:0}.assessment-selection{border:0;min-width:0;margin:0;padding:0}.assessment-selection legend{margin-bottom:8px}.answer-options{flex-wrap:wrap;gap:8px;display:flex}.answer-option{cursor:pointer;max-width:100%;min-height:44px;color:inherit;letter-spacing:normal;text-transform:none;border:1px solid #cbd3dc;border-radius:7px;align-items:center;gap:9px;padding:7px 12px;font-size:14px;display:flex}.answer-option:has(input:checked){background:#edf3fb;border-color:#315fa0}.answer-option input{flex-shrink:0;width:18px;height:18px}.answer-grid-scroll{border:1px solid #d8dfe7;border-radius:7px;width:fit-content;max-width:100%;overflow-x:auto}.answer-grid{border-collapse:separate;border-spacing:0;width:max-content;min-width:min(100%,20rem);margin:0}.answer-grid caption{text-align:left;padding:10px}.answer-grid td,.answer-grid th{text-align:center;min-width:54px;padding:5px}.answer-grid th{background:#f5f7fa}.answer-grid th[scope=row]{z-index:1;text-align:left;padding-left:10px;position:sticky;left:0}.answer-grid .given-cell{color:#4d5967;background:#f5f7fa}.answer-grid .sticky-given{z-index:1;background:#f5f7fa;width:54px;min-width:54px;max-width:54px;position:sticky}.answer-grid input{text-align:center;width:7rem;min-width:64px;min-height:44px}.boolean-cell{min-width:44px;min-height:44px;font-weight:600}.boolean-cell.answered{color:#234b7c;background:#edf3fb;border-color:#8ba8cd}.boolean-field{align-items:center;gap:12px;display:flex}.blank-value{color:#7f8995}.interval-input{align-items:center;gap:6px;width:min(100%,32rem);display:flex}.interval-input input{width:100%;min-width:0;min-height:44px}.interval-input .boolean-cell{flex-shrink:0}.scratchwork,.earlier-work,.submitted-question{margin:12px 0}.scratchwork>summary,.earlier-work>summary,.submitted-question>summary{cursor:pointer;min-height:44px;padding:10px 0}.readonly-answer .answer-grid td{padding:9px 12px}.accepted-math-value{flex-direction:column;align-items:flex-start;gap:6px;display:flex}.accepted-math-value>.math-inline{max-width:100%}.literal-answer-value{white-space:pre-wrap;overflow-wrap:anywhere}.answer-value,.answer-selection{border-left:2px solid #d8dfe7;padding-left:10px}.tex-editor.compact .editor-columns{grid-template-columns:minmax(0,1fr);gap:6px}.tex-editor.compact .editor-input{grid-template-columns:minmax(0,1fr) 44px;align-items:start;gap:6px;display:grid}.tex-editor.compact .editor-box{padding:7px 10px}.tex-editor.compact .editor-box:focus-within{outline:2px solid var(--accent);outline-offset:2px}.tex-editor.compact .cm-editor{min-height:28px}.tex-editor.compact .cm-content{min-height:28px;padding:1px 0}.tex-editor.compact .compact-syntax{min-width:44px;min-height:44px}.tex-editor.compact .preview{grid-row:auto;min-height:0}.tex-editor.compact .preview .rich>:last-child{margin-bottom:0}.review-budget{flex-wrap:wrap;align-items:center;gap:10px;font-size:.9rem;display:flex}.review-primary{border-left:3px solid var(--accent)}.review-estimate{color:var(--accent);margin:0;font-size:1.4rem}.review-allowance{font-size:.9rem}.review-notice p:first-child{margin-top:0}.review-notice p:last-child{margin-bottom:0}.extra-practice{border-top:1px solid var(--line);margin-top:22px;padding-top:16px}.extra-practice summary{cursor:pointer;font-size:.85rem}.practice-guidance{border-left:3px solid var(--accent);background:#edf2f8;margin:16px 0;padding:12px 16px;font-size:.9rem}.practice-guidance p:first-child{margin-top:0}.review-exercise-label{white-space:normal;text-align:left;overflow-wrap:anywhere;min-width:0}.review-exercise-label small{color:var(--muted);margin-top:3px;display:block}
