@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{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;position:relative;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.46"}.katex .katex-mathml{border:0;clip-path:inset(50%);height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;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 .smash{display:inline;line-height:0}.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;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex svg{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}.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}*,:before,:after{--tw-border-spacing-x:0;--tw-border-spacing-y:0;--tw-translate-x:0;--tw-translate-y:0;--tw-rotate:0;--tw-skew-x:0;--tw-skew-y:0;--tw-scale-x:1;--tw-scale-y:1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness:proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-color:rgb(59 130 246 / .5);--tw-ring-offset-shadow:0 0 #0000;--tw-ring-shadow:0 0 #0000;--tw-shadow:0 0 #0000;--tw-shadow-colored:0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }::backdrop{--tw-border-spacing-x:0;--tw-border-spacing-y:0;--tw-translate-x:0;--tw-translate-y:0;--tw-rotate:0;--tw-skew-x:0;--tw-skew-y:0;--tw-scale-x:1;--tw-scale-y:1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness:proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-color:rgb(59 130 246 / .5);--tw-ring-offset-shadow:0 0 #0000;--tw-ring-shadow:0 0 #0000;--tw-shadow:0 0 #0000;--tw-shadow-colored:0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }*,:before,:after{box-sizing:border-box;border-width:0;border-style:solid;border-color:#e5e7eb}:before,:after{--tw-content: ""}html,:host{line-height:1.5;-webkit-text-size-adjust:100%;-moz-tab-size:4;-o-tab-size:4;tab-size:4;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-feature-settings:normal;font-variation-settings:normal;-webkit-tap-highlight-color:transparent}body{margin:0;line-height:inherit}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-feature-settings:normal;font-variation-settings:normal;font-size:1em}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}button,input,optgroup,select,textarea{font-family:inherit;font-feature-settings:inherit;font-variation-settings:inherit;font-size:100%;font-weight:inherit;line-height:inherit;letter-spacing:inherit;color:inherit;margin:0;padding:0}button,select{text-transform:none}button,input:where([type=button]),input:where([type=reset]),input:where([type=submit]){-webkit-appearance:button;background-color:transparent;background-image:none}:-moz-focusring{outline:auto}:-moz-ui-invalid{box-shadow:none}progress{vertical-align:baseline}::-webkit-inner-spin-button,::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}summary{display:list-item}blockquote,dl,dd,h1,h2,h3,h4,h5,h6,hr,figure,p,pre{margin:0}fieldset{margin:0;padding:0}legend{padding:0}ol,ul,menu{list-style:none;margin:0;padding:0}dialog{padding:0}textarea{resize:vertical}input::-moz-placeholder,textarea::-moz-placeholder{opacity:1;color:#9ca3af}input::placeholder,textarea::placeholder{opacity:1;color:#9ca3af}button,[role=button]{cursor:pointer}:disabled{cursor:default}img,svg,video,canvas,audio,iframe,embed,object{display:block;vertical-align:middle}img,video{max-width:100%;height:auto}[hidden]:where(:not([hidden=until-found])){display:none}:root{--feed-viewport-height: 100dvh;color:#15181f;background:#f7f3ea}body{margin:0}table{width:100%;border-collapse:collapse;font-size:.9rem}th,td{border-bottom:1px solid rgb(21 24 31 / 12%);padding:.45rem .35rem;text-align:left}.feed-shell{--feed-control-offset: 7.25rem;min-height:var(--feed-viewport-height);background:linear-gradient(180deg,#f7f3ea,#efeadd);color:#15181f}.student-shell{--tabbar-reserved-height: calc(4.25rem + env(safe-area-inset-bottom)) ;--practice-bottom-clearance: calc(var(--tabbar-reserved-height) + 1.25rem);min-height:var(--feed-viewport-height);background:#f7f3ea}.student-main{min-height:var(--feed-viewport-height);padding-bottom:var(--tabbar-reserved-height)}.tabbar{position:fixed;z-index:30;right:0;bottom:0;left:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid rgb(21 24 31 / 10%);background:#fffffff0;padding:.35rem max(.5rem,env(safe-area-inset-left)) max(.35rem,env(safe-area-inset-bottom));box-shadow:0 -.6rem 1.6rem #15181f14}.tab-button{display:grid;min-height:3.25rem;place-items:center;gap:.15rem;color:#5b6270;font-size:.68rem;font-weight:800}.tab-button.active{color:#15181f}.tab-button svg{width:1.2rem;height:1.2rem}.feed-controls{position:fixed;z-index:20;top:0;left:0;right:0;display:flex;align-items:center;flex-wrap:nowrap;gap:.5rem;padding:1rem;pointer-events:none}.mode-switch{display:inline-flex;border:1px solid rgb(21 24 31 / 10%);border-radius:999px;background:#ffffffe0;padding:.2rem;font-size:.78rem;font-weight:750;box-shadow:0 .25rem 1rem #15181f14;pointer-events:auto}.mode-switch button{border-radius:999px;padding:.3rem .7rem;color:#5b6270}.mode-switch button.active{background:#15181f;color:#fff}.mode-switch button:disabled{opacity:.45}.topic-select{height:100%;max-width:min(42vw,15rem);border:0;background:transparent;padding:0 .1rem;color:#15181f;font-size:.78rem;font-weight:750;pointer-events:auto}.topic-picker,.topic-copy{margin-left:.5rem;display:inline-flex;align-items:center;max-width:min(54vw,19rem);gap:.45rem;border:1px solid rgb(21 24 31 / 10%);border-radius:999px;background:#ffffffe0;padding:.2rem .65rem;color:#15181f;font-size:.72rem;font-weight:800;box-shadow:0 .25rem 1rem #15181f14;pointer-events:auto}.topic-copy span{color:#5b6270;font-size:.66rem;font-style:normal;font-weight:650}.completion-toggle{border:1px solid rgb(21 24 31 / 10%);border-radius:999px;background:#ffffffe0;padding:.45rem .75rem;color:#5b6270;font-size:.78rem;font-weight:750;box-shadow:0 .25rem 1rem #15181f14;pointer-events:auto}.topic-picker,.completion-toggle{box-sizing:border-box;height:2.5rem}.completion-toggle.active{background:#e89b1c;color:#fff}.completion-status{position:fixed;z-index:20;top:4.1rem;left:1rem;border-radius:999px;background:#15181fd6;padding:.35rem .65rem;color:#fff;font-size:.72rem;font-weight:800}.student-pill{margin-left:auto;display:inline-flex;align-items:center;gap:.65rem;border:1px solid rgb(21 24 31 / 10%);border-radius:999px;background:#ffffffe0;padding:.35rem .45rem .35rem .8rem;color:#15181f;font-size:.78rem;font-weight:750;box-shadow:0 .25rem 1rem #15181f14;pointer-events:auto}.student-pill button{border-radius:999px;background:#15181f;padding:.3rem .6rem;color:#fff;font-size:.72rem}.feed-scroll{height:var(--feed-viewport-height);overflow-y:auto;overscroll-behavior-y:none;scroll-snap-type:y mandatory}.feed-scroll.is-navigation-locked{overflow-y:hidden;scroll-snap-type:none}.question-screen{position:relative;display:grid;box-sizing:border-box;grid-template-rows:minmax(0,1fr) auto;align-content:start;gap:.75rem;width:min(100%,46rem);height:var(--feed-viewport-height);min-height:var(--feed-viewport-height);margin:0 auto;overflow:hidden;scroll-snap-align:start;scroll-snap-stop:always;padding:var(--feed-control-offset) 1rem var(--practice-bottom-clearance)}.question-content{min-height:0;max-height:none;overflow-y:auto;overscroll-behavior-y:auto;padding-right:3.8rem;scroll-padding-bottom:var(--practice-bottom-clearance);touch-action:pan-y;-webkit-overflow-scrolling:touch}.question-meta,.question-number{font-size:.68rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#5b6270}.question-number{position:absolute;right:1rem;top:1.2rem}.question-stem{margin-top:.75rem;font-size:1.125rem;font-weight:600;line-height:1.45}.question-stem p,.question-stem ul,.question-stem ol,.question-stem table,.question-stem .katex-display{margin-top:1rem}.question-stem ol{list-style:decimal;list-style-position:outside;padding-left:1.45rem}.question-stem ul{list-style:disc;padding-left:1.45rem}.question-stem img{margin-top:1rem;max-height:min(34dvh,18rem);width:100%;-o-object-fit:contain;object-fit:contain}.question-stem table{display:block;max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}.answer-verdict{margin-top:1rem;min-height:3.5rem;border-radius:.5rem;padding:.85rem 1rem;font-weight:850}.answer-verdict.correct{background:#e6f6ec;color:#126c3a}.answer-verdict.wrong{background:#fdebe9;color:#a8241c}.answer-error{margin-top:.85rem;border-radius:999px;background:#a8241c1a;padding:.55rem .75rem;color:#a8241c;font-size:.82rem;font-weight:800}.option-list{display:grid;gap:.65rem;padding-right:3.8rem}.option-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.compact-option-list{grid-template-columns:repeat(4,minmax(0,1fr))}.option-button{display:grid;grid-template-columns:auto minmax(0,1fr);gap:.7rem;align-items:center;min-height:3.4rem;border:1px solid rgb(21 24 31 / 12%);border-radius:.5rem;background:#ffffffd6;padding:.75rem;text-align:left;box-shadow:0 .35rem 1.2rem #15181f12}.option-button:disabled{cursor:default}.option-button.is-pending,.option-table-row.is-pending{opacity:.72}.option-button.is-correct{border-color:#1faa5b73;background:#e6f6eceb}.option-button.is-wrong{border-color:#e0463c73;background:#fdebe9eb}.option-button.is-muted{opacity:.52}.image-option{grid-template-columns:1fr;justify-items:center;min-height:8rem;text-align:center}.compact-option{grid-template-columns:1fr;place-items:center;min-height:3rem;text-align:center}.option-letter{display:grid;width:1.75rem;height:1.75rem;place-items:center;border-radius:999px;background:#15181f;color:#fff;font-size:.85rem;font-weight:800}.image-option .option-letter{position:absolute;margin:.5rem;justify-self:start;align-self:start}.option-html{min-width:0;font-size:1rem;font-weight:650;line-height:1.35}.option-html img{max-height:7.5rem;width:100%;-o-object-fit:contain;object-fit:contain}.option-html figcaption{margin-top:.35rem;color:#5b6270;font-size:.76rem;font-weight:700}.option-table-scroll{overflow-x:auto;overscroll-behavior-x:contain;padding-right:3.8rem;scrollbar-gutter:stable;touch-action:pan-x pan-y;-webkit-overflow-scrolling:touch}.option-table{display:grid;min-width:-moz-max-content;min-width:max-content;border:1px solid rgb(21 24 31 / 12%);border-radius:.5rem;background:#ffffffd6;font-size:.9rem;line-height:1.35;box-shadow:0 .35rem 1.2rem #15181f12}.option-table-header,.option-table-row{display:grid;grid-template-columns:2.6rem repeat(var(--option-table-column-count),minmax(7rem,1fr));align-items:stretch}.option-table-header{border-bottom:1px solid rgb(21 24 31 / 14%);color:#5b6270;font-size:.82rem;font-weight:800}.option-table-row{width:100%;border-top:1px solid rgb(21 24 31 / 8%);text-align:left}.option-table-row:first-of-type{border-top:0}.option-table-row.is-correct{background:#e6f6eceb}.option-table-row.is-wrong{background:#fdebe9eb}.option-table-row.is-muted{opacity:.52}.option-table-cell,.option-table-corner{display:grid;align-content:center;min-width:0;padding:.65rem .7rem;border-left:1px solid rgb(21 24 31 / 8%)}.option-table-corner{border-left:0}.option-table-letter{margin:.55rem;align-self:center;justify-self:center}.action-rail{position:absolute;right:.9rem;bottom:var(--practice-bottom-clearance);display:grid;gap:.75rem}.rail-button{display:grid;justify-items:center;gap:.2rem;border:none;background:transparent;color:#15181f;font-size:.66rem;font-weight:750}.rail-button svg{width:1.25rem;height:1.25rem;box-sizing:content-box;border-radius:999px;background:#ffffffdb;padding:.72rem;box-shadow:0 .35rem 1.2rem #15181f1a}.feed-empty{display:grid;min-height:100vh;place-content:center;padding:2rem;text-align:center}.workflow-tab{width:min(100%,46rem);margin:0 auto;padding:1.25rem 1rem 6rem}.workflow-header{display:grid;gap:.35rem;margin-bottom:1rem}.workflow-header h1{color:#15181f;font-size:1.65rem;font-weight:850;line-height:1.05}.workflow-header p:not(.brand-kicker){color:#5b6270;font-size:.92rem;line-height:1.45}.detail-header{grid-template-columns:auto minmax(0,1fr);align-items:start}.detail-header button,.secondary-button{border:1px solid rgb(21 24 31 / 12%);border-radius:.45rem;background:#fff;padding:.55rem .75rem;color:#15181f;font-size:.84rem;font-weight:800}.topic-group{display:grid;gap:.55rem;margin-top:1rem}.topic-group h2,.detail-panel h2{font-size:1rem;font-weight:850}.consolidation-list,.detail-panel,.profile-form,.feedback-form{display:grid;gap:.65rem}.consolidation-row,.detail-panel,.profile-form,.stats-grid div{border:1px solid rgb(21 24 31 / 10%);border-radius:.5rem;background:#ffffffdb;box-shadow:0 .35rem 1.2rem #15181f0f}.consolidation-row{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.85rem;text-align:left}.consolidation-row span:first-child{display:grid;min-width:0;gap:.2rem}.consolidation-row strong{font-weight:850}.consolidation-row em,.consolidation-row span:last-child,.history-row em,.note-row time{color:#5b6270;font-size:.78rem;font-style:normal;font-weight:700}.detail-panel{margin-top:.8rem;padding:.9rem}.correct-option{margin-top:.85rem;border-radius:.45rem;background:#e6f6ec;padding:.75rem;color:#126c3a;font-weight:800}.history-row{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:.65rem;align-items:center;border-top:1px solid rgb(21 24 31 / 8%);padding-top:.55rem}.note-row{border-top:1px solid rgb(21 24 31 / 8%);padding-top:.65rem}.note-row p{margin-top:.25rem;line-height:1.45}.danger-button{margin-top:.9rem;width:100%;border-radius:.45rem;background:#a8241c;padding:.75rem .9rem;color:#fff;font-weight:850}.profile-form,.feedback-form{margin-top:1rem;padding:.9rem}.profile-form label{display:grid;gap:.35rem;color:#5b6270;font-size:.78rem;font-weight:800}.profile-form input,.feedback-form textarea,.save-note-form textarea{border:1px solid rgb(21 24 31 / 14%);border-radius:.45rem;background:#fff;padding:.75rem .8rem;color:#15181f;font-size:1rem;font-weight:650}.profile-form button,.feedback-form button,.modal-actions button[type=submit]{border-radius:.45rem;background:#15181f;padding:.75rem .9rem;color:#fff;font-weight:850}.stats-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.65rem;margin-top:1rem}.stats-grid div{display:grid;gap:.3rem;padding:.8rem}.stats-grid span{color:#5b6270;font-size:.72rem;font-weight:800}.stats-grid strong{font-size:1.35rem;font-weight:850}.workflow-empty{display:grid;min-height:18rem;place-items:center;color:#5b6270;font-weight:750}.modal-backdrop{position:fixed;z-index:50;inset:0;display:grid;place-items:center;background:#15181f6b;padding:1rem}.modal-panel{display:grid;width:min(100%,24rem);gap:.8rem;border-radius:.5rem;background:#fff;padding:1rem;box-shadow:0 1.5rem 3rem #15181f3d}.modal-panel h2{font-size:1.25rem;font-weight:850}.modal-panel p{color:#5b6270;font-size:.9rem}.modal-actions{display:grid;grid-template-columns:1fr 1fr;gap:.6rem}.report-reasons{display:grid;gap:.55rem}.report-reasons button{border:1px solid rgb(21 24 31 / 12%);border-radius:.45rem;background:#fff;padding:.75rem .9rem;color:#15181f;font-weight:850;text-align:left}.modal-actions button[type=button]{border-radius:.45rem;background:#eef1f4;padding:.75rem .9rem;color:#15181f;font-weight:850}.toast{position:fixed;z-index:25;top:4.25rem;right:1rem;max-width:min(21rem,calc(100vw - 2rem));border-radius:999px;background:#15181f;padding:.7rem .9rem;color:#fff;font-size:.86rem;font-weight:800;pointer-events:none;box-shadow:0 .9rem 2rem #15181f33}.empty-title{font-size:1.3rem;font-weight:800}.empty-copy{margin-top:.4rem;color:#5b6270}.signed-out-shell{display:grid;min-height:100vh;place-items:center;background:radial-gradient(90% 55% at 10% 0%,rgb(247 200 115 / 24%) 0%,transparent 58%),linear-gradient(180deg,#f7f3ea,#efeadd);padding:1.5rem}.profile-gate-shell{display:grid;min-height:100vh;place-items:center;background:linear-gradient(180deg,#f7f3ea,#efeadd);padding:1.25rem}.profile-gate-panel{display:grid;width:min(100%,26rem);gap:.85rem;border:1px solid rgb(21 24 31 / 10%);border-radius:.5rem;background:#ffffffe0;padding:1.25rem;box-shadow:0 1rem 2.5rem #15181f1a}.profile-gate-panel h1{font-size:1.55rem;font-weight:850;line-height:1.05}.profile-gate-panel label{display:grid;gap:.35rem;color:#5b6270;font-size:.78rem;font-weight:800}.profile-gate-panel input{border:1px solid rgb(21 24 31 / 14%);border-radius:.45rem;background:#fff;padding:.75rem .8rem;color:#15181f;font-size:1rem;font-weight:650}.profile-email{color:#5b6270;font-size:.85rem;font-weight:650}.profile-error{min-height:1rem;color:#a8241c;font-size:.82rem;font-weight:750}.profile-submit,.profile-signout{border-radius:.45rem;padding:.75rem .9rem;font-size:.92rem;font-weight:850}.profile-submit{background:#15181f;color:#fff}.profile-signout{background:transparent;color:#5b6270}.reviewer-shell,.reviewer-access-shell{min-height:100vh;background:#f7f3ea;color:#15181f}.reviewer-access-shell{display:grid;place-items:center;padding:1.5rem}.reviewer-header{display:flex;gap:1rem;align-items:end;justify-content:space-between;border-bottom:1px solid rgb(21 24 31 / 10%);background:#ffffffd6;padding:1.2rem clamp(1rem,4vw,2rem)}.reviewer-header h1{margin-top:.25rem;font-size:clamp(1.8rem,4vw,3.2rem);font-weight:850;line-height:1}.reviewer-header p:not(.brand-kicker){max-width:34rem;color:#5b6270;font-size:.9rem;line-height:1.45}.reviewer-layout{display:grid;grid-template-columns:minmax(14rem,20rem) minmax(0,1fr);gap:1rem;width:min(100%,78rem);margin:0 auto;padding:1rem}.reviewer-list{position:sticky;top:1rem;display:grid;max-height:calc(100vh - 2rem);align-content:start;gap:.55rem;overflow:auto}.review-question-button,.review-section,.review-source-option{border:1px solid rgb(21 24 31 / 10%);border-radius:.5rem;background:#ffffffe0;box-shadow:0 .35rem 1.2rem #15181f0d}.review-question-button{display:grid;gap:.25rem;padding:.75rem;text-align:left}.review-question-button.active{border-color:#15181f61;background:#fff}.review-question-button span,.review-status{color:#5b6270;font-size:.72rem;font-weight:850;letter-spacing:.08em;text-transform:uppercase}.review-question-button strong{font-size:.95rem;font-weight:850}.review-question-button em,.reviewer-empty{color:#5b6270;font-size:.82rem;font-style:normal;font-weight:650}.review-question{display:grid;gap:.85rem}.review-question-header{display:flex;gap:1rem;align-items:start;justify-content:space-between}.review-question-header h2{margin-top:.2rem;font-size:1.45rem;font-weight:850;line-height:1.08}.review-status{border-radius:999px;background:#15181f;padding:.45rem .65rem;color:#fff;white-space:nowrap}.review-section{display:grid;gap:.75rem;padding:.9rem}.review-section h3{font-size:.96rem;font-weight:850}.review-source-stem{line-height:1.45}.review-source-stem img,.review-source-option img{max-height:14rem;width:100%;-o-object-fit:contain;object-fit:contain}.review-source-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.65rem}.review-source-option{display:grid;grid-template-columns:auto minmax(0,1fr);gap:.65rem;align-items:start;padding:.75rem}.review-source-option>span{display:grid;width:1.7rem;height:1.7rem;place-items:center;border-radius:999px;background:#15181f;color:#fff;font-size:.8rem;font-weight:850}.review-rationale{border-radius:.45rem;background:#eef1f4;padding:.75rem;color:#343b48;line-height:1.45}.review-metadata-form,.source-issue-form{display:grid;gap:.65rem}.review-metadata-form label{display:grid;gap:.35rem;color:#5b6270;font-size:.78rem;font-weight:850}.review-metadata-form input,.review-metadata-form select,.source-issue-form textarea{border:1px solid rgb(21 24 31 / 14%);border-radius:.45rem;background:#fff;padding:.7rem .75rem;color:#15181f;font-size:.95rem;font-weight:650}.review-metadata-form em{color:#5b6270;font-size:.76rem;font-style:normal;font-weight:650}.review-metadata-form button,.source-issue-form button{border-radius:.45rem;background:#15181f;padding:.75rem .9rem;color:#fff;font-weight:850}.review-context-row{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:.65rem;align-items:center;border-top:1px solid rgb(21 24 31 / 8%);padding-top:.55rem}.review-context-row span,.review-context-row time{color:#5b6270;font-size:.78rem;font-weight:700}@media(max-width:520px){.feed-shell{--feed-control-offset: 9rem}.feed-controls{flex-wrap:wrap;padding:.75rem}.student-pill span{display:none}.student-pill{gap:0;padding-left:.45rem}.toast{top:6.25rem}.stats-grid{grid-template-columns:1fr}.history-row{grid-template-columns:1fr auto}.history-row em{grid-column:1 / -1}.reviewer-header,.review-question-header{display:grid;align-items:start}.reviewer-layout{grid-template-columns:1fr}.reviewer-list{position:static;max-height:none;grid-template-columns:repeat(2,minmax(0,1fr))}.review-source-options,.review-context-row{grid-template-columns:1fr}}@media(min-width:720px){.question-stem{font-size:1.25rem}.option-html{font-size:1.0625rem}}.signed-out-panel{width:min(100%,26rem)}.brand-kicker{color:#5b6270;font-size:.75rem;font-weight:850;letter-spacing:.18em;text-transform:uppercase}.signed-out-panel h1{margin-top:.8rem;color:#15181f;font-size:clamp(3rem,13vw,5rem);font-weight:650;line-height:.95}.signed-out-panel p:not(.brand-kicker){margin-top:1rem;max-width:24rem;color:#5b6270;font-size:1rem;line-height:1.55}.signed-out-panel button{margin-top:1.5rem;width:100%;border-radius:.5rem;background:#15181f;padding:.95rem 1rem;color:#fff;font-weight:800}.preview-account-controls{display:grid;gap:.5rem;margin-top:1rem}.signed-out-panel .preview-account-button{display:grid;gap:.15rem;margin-top:0;border:1px solid rgb(21 24 31 / 12%);background:#ffffffe0;color:#15181f;text-align:left}.preview-account-button small{color:#5b6270;font-size:.72rem;font-weight:650}.visible{visibility:visible}.relative{position:relative}.table{display:table}.hidden{display:none}.min-h-screen{min-height:100vh}.resize{resize:both}.bg-parchment{--tw-bg-opacity:1;background-color:rgb(247 243 234 / var(--tw-bg-opacity, 1))}.ordinal{--tw-ordinal:ordinal;font-variant-numeric:var(--tw-ordinal) var(--tw-slashed-zero) var(--tw-numeric-figure) var(--tw-numeric-spacing) var(--tw-numeric-fraction)}.text-ink{--tw-text-opacity:1;color:rgb(21 24 31 / var(--tw-text-opacity, 1))}.antialiased{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.filter{filter:var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow)}.transition{transition-property:color,background-color,border-color,text-decoration-color,fill,stroke,opacity,box-shadow,transform,filter,backdrop-filter;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}
