@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(./KaTeX_AMS-Regular-BQhdFMY1.woff2) format("woff2"),url(./KaTeX_AMS-Regular-DMm9YOAa.woff) format("woff"),url(./KaTeX_AMS-Regular-DRggAlZN.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(./KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2) format("woff2"),url(./KaTeX_Caligraphic-Bold-BEiXGLvX.woff) format("woff"),url(./KaTeX_Caligraphic-Bold-ATXxdsX0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(./KaTeX_Caligraphic-Regular-Di6jR-x-.woff2) format("woff2"),url(./KaTeX_Caligraphic-Regular-CTRA-rTL.woff) format("woff"),url(./KaTeX_Caligraphic-Regular-wX97UBjC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(./KaTeX_Fraktur-Bold-CL6g_b3V.woff2) format("woff2"),url(./KaTeX_Fraktur-Bold-BsDP51OF.woff) format("woff"),url(./KaTeX_Fraktur-Bold-BdnERNNW.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(./KaTeX_Fraktur-Regular-CTYiF6lA.woff2) format("woff2"),url(./KaTeX_Fraktur-Regular-Dxdc4cR9.woff) format("woff"),url(./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(./KaTeX_Main-Bold-Cx986IdX.woff2) format("woff2"),url(./KaTeX_Main-Bold-Jm3AIy58.woff) format("woff"),url(./KaTeX_Main-Bold-waoOVXN0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(./KaTeX_Main-BoldItalic-DxDJ3AOS.woff2) format("woff2"),url(./KaTeX_Main-BoldItalic-SpSLRI95.woff) format("woff"),url(./KaTeX_Main-BoldItalic-DzxPMmG6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(./KaTeX_Main-Italic-NWA7e6Wa.woff2) format("woff2"),url(./KaTeX_Main-Italic-BMLOBm91.woff) format("woff"),url(./KaTeX_Main-Italic-3WenGoN9.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(./KaTeX_Main-Regular-B22Nviop.woff2) format("woff2"),url(./KaTeX_Main-Regular-Dr94JaBh.woff) format("woff"),url(./KaTeX_Main-Regular-ypZvNtVU.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(./KaTeX_Math-BoldItalic-CZnvNsCZ.woff2) format("woff2"),url(./KaTeX_Math-BoldItalic-iY-2wyZ7.woff) format("woff"),url(./KaTeX_Math-BoldItalic-B3XSjfu4.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(./KaTeX_Math-Italic-t53AETM-.woff2) format("woff2"),url(./KaTeX_Math-Italic-DA0__PXp.woff) format("woff"),url(./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(./KaTeX_SansSerif-Bold-D1sUS0GD.woff2) format("woff2"),url(./KaTeX_SansSerif-Bold-DbIhKOiC.woff) format("woff"),url(./KaTeX_SansSerif-Bold-CFMepnvq.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(./KaTeX_SansSerif-Italic-C3H0VqGB.woff2) format("woff2"),url(./KaTeX_SansSerif-Italic-DN2j7dab.woff) format("woff"),url(./KaTeX_SansSerif-Italic-YYjJ1zSn.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(./KaTeX_SansSerif-Regular-DDBCnlJ7.woff2) format("woff2"),url(./KaTeX_SansSerif-Regular-CS6fqUqJ.woff) format("woff"),url(./KaTeX_SansSerif-Regular-BNo7hRIc.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(./KaTeX_Script-Regular-D3wIWfF6.woff2) format("woff2"),url(./KaTeX_Script-Regular-D5yQViql.woff) format("woff"),url(./KaTeX_Script-Regular-C5JkGWo-.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(./KaTeX_Size1-Regular-mCD8mA8B.woff2) format("woff2"),url(./KaTeX_Size1-Regular-C195tn64.woff) format("woff"),url(./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(./KaTeX_Size2-Regular-Dy4dx90m.woff2) format("woff2"),url(./KaTeX_Size2-Regular-oD1tc_U0.woff) format("woff"),url(./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(./KaTeX_Size3-Regular-CTq5MqoE.woff) format("woff"),url(./KaTeX_Size3-Regular-DgpXs0kz.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(./KaTeX_Size4-Regular-Dl5lxZxV.woff2) format("woff2"),url(./KaTeX_Size4-Regular-BF-4gkZK.woff) format("woff"),url(./KaTeX_Size4-Regular-DWFBv043.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(./KaTeX_Typewriter-Regular-CO6r4hn1.woff2) format("woff2"),url(./KaTeX_Typewriter-Regular-C0xS9mPB.woff) format("woff"),url(./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:"0.18.1"}.katex .katex-mathml{border:0;-webkit-clip-path:inset(50%);clip-path:inset(50%);height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.katex-newline{display:block}.katex .katex-base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.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;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 .katex-vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .katex-thinbox{display:inline-flex;flex-direction:row;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 .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{display:inline;line-height:0}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.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;display:inline-block;width:100%}.katex .katex-hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.katex-root{margin-left:.2777777778em;margin-right:-.5555555556em}.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:.8333333333em}.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:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .katex-sizing.reset-size2.size4{font-size:1.3333333333em}.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:1.6666666667em}.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:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .katex-sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .katex-sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .katex-sizing.reset-size3.size2{font-size:.8571428571em}.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:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .katex-sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .katex-sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .katex-sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .katex-sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .katex-sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .katex-sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .katex-sizing.reset-size3.size11{font-size:3.5542857143em}.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:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .katex-sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .katex-sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .katex-sizing.reset-size5.size4{font-size:.8888888889em}.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:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .katex-sizing.reset-size5.size7{font-size:1.3333333333em}.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:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .katex-sizing.reset-size5.size11{font-size:2.7644444444em}.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:.4166666667em}.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:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .katex-sizing.reset-size7.size4{font-size:.6666666667em}.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:.8333333333em}.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:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .katex-sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .katex-sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .katex-sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .katex-sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .katex-sizing.reset-size8.size4{font-size:.5555555556em}.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:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .katex-sizing.reset-size8.size7{font-size:.8333333333em}.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:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .katex-sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .katex-sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .katex-sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .katex-sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .katex-sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .katex-sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .katex-sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .katex-sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .katex-sizing.reset-size9.size8{font-size:.8333333333em}.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:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .katex-sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .katex-sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .katex-sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .katex-sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .katex-sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .katex-sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .katex-sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .katex-sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .katex-sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .katex-sizing.reset-size10.size9{font-size:.8331726133em}.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:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .katex-sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .katex-sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .katex-sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .katex-sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .katex-sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .katex-sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .katex-sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .katex-sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .katex-sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .katex-sizing.reset-size11.size10{font-size:.8336012862em}.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{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 .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{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 .katex-stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .katex-stretchy:after,.katex .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 .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>.katex-tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.katex-tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#17312c;background:#edf4f1;font-synthesis:none;text-rendering:optimizeLegibility;--green: #0b5b4d;--green2: #1a7a68;--ink: #17312c;--muted: #64756f;--line: rgba(18, 75, 64, .14);--card: rgba(255, 255, 255, .82);--shadow: 0 14px 40px rgba(25, 67, 59, .09)}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}button,a,textarea{font:inherit}.app{display:grid;grid-template-columns:270px minmax(0,1fr);min-height:100vh;background:radial-gradient(circle at 85% 0%,rgba(79,180,150,.14),transparent 29%),#edf4f1}.app.dark{--ink: #e9f4f0;--muted: #9db4ad;--line: rgba(196, 236, 225, .13);--card: rgba(18, 42, 37, .82);background:#0c1714;color:var(--ink)}.sidebar{position:sticky;top:0;height:100vh;padding:22px 18px;background:#0c4e43;color:#fff;display:flex;flex-direction:column;z-index:20}.brand{display:flex;align-items:center;gap:12px;padding:5px 6px 24px}.brand-mark{width:46px;height:46px;display:grid;place-items:center;border-radius:15px;background:#ffffff24}.brand strong,.brand span{display:block}.brand span{opacity:.72;font-size:.88rem}.sidebar nav{display:grid;gap:7px}.sidebar nav a{display:flex;align-items:center;gap:12px;color:#ffffffbd;padding:12px;border-radius:12px;text-decoration:none}.sidebar nav a:hover,.sidebar nav a.active{color:#fff;background:#ffffff1f}svg{width:20px;height:20px}.sidebar-bottom{margin-top:auto;display:grid;gap:12px}.course-pill{display:flex;gap:10px;align-items:center;padding:12px;border-radius:13px;background:#ffffff17}.course-pill b,.course-pill span{display:block}.course-pill span{font-size:.78rem;opacity:.68}main{min-width:0}header{height:72px;padding:0 34px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;background:#edf4f1b8;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);position:sticky;top:0;z-index:10}.dark header{background:#0c1714c2}.header-course span,.header-course b{display:block}.header-course span{font-size:.7rem;color:var(--green2);font-weight:800;letter-spacing:.1em}.header-course b{font-size:.91rem}.content{max-width:1300px;margin:auto;padding:40px 38px 70px}.icon{border:0;background:transparent;color:inherit;display:grid;place-items:center;padding:8px;cursor:pointer}.menu,.mobile-close{display:none}.glass,.panel{background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.hero{border-radius:26px;padding:52px;display:grid;grid-template-columns:1fr 250px;align-items:center;overflow:hidden}.hero small,.page-head small{font-size:.72rem;letter-spacing:.13em;font-weight:900;color:var(--green2)}.hero h1{font-size:clamp(2rem,4vw,4.1rem);line-height:1.03;max-width:850px;margin:16px 0}.hero p{font-size:1.05rem;line-height:1.7;color:var(--muted);max-width:760px}.helix{display:grid;place-items:center}.helix svg{width:180px;height:180px;color:var(--green2);opacity:.16}.hero-actions{display:flex;gap:12px;margin-top:26px}.primary,.secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:12px;padding:12px 17px;text-decoration:none;cursor:pointer}.primary{background:var(--green);color:#fff}.secondary{background:#13675717;color:var(--ink);border:1px solid var(--line)}.sidebar .secondary{color:#fff;background:#ffffff1c}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:20px 0 52px}.stats article{border-radius:18px;padding:22px}.stats span,.stats p{color:var(--muted)}.stats b{display:block;font-size:2rem;margin:7px 0}.bar{height:7px;border-radius:10px;background:#1a7a681f;overflow:hidden}.bar i{height:100%;display:block;background:var(--green2);border-radius:10px}.page-head{margin:18px 0 25px}.page-head h1{font-size:clamp(2rem,4vw,3.5rem);margin:8px 0 10px}.page-head p{color:var(--muted);font-size:1.04rem;max-width:850px;line-height:1.65}.workspace-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.workspace{padding:24px;border-radius:18px;text-decoration:none;color:inherit;transition:.2s}.workspace:hover{transform:translateY(-3px)}.workspace>svg{width:30px;height:30px;color:var(--green2)}.workspace h2{font-size:1.1rem;margin:18px 0 8px}.workspace p{color:var(--muted);line-height:1.55;min-height:72px}.workspace span{display:flex;align-items:center;gap:5px;font-weight:700;color:var(--green2);font-size:.86rem}.module-grid{display:grid;gap:20px}.module{padding:28px;border-radius:21px}.module-title{display:flex;gap:17px}.module-title>span{font-size:2rem}.module-title h2{margin:0}.module-title p{color:var(--muted)}.lesson{display:flex;justify-content:space-between;gap:18px;padding:17px 0;border-top:1px solid var(--line);text-decoration:none;color:inherit}.lesson small{display:block;color:var(--green2);font-size:.7rem;font-weight:800;letter-spacing:.08em;margin-bottom:6px}.lesson b{font-size:1.02rem}.lesson p{margin:5px 0 0;color:var(--muted)}.status{align-self:center;border:1px solid var(--line);padding:7px 11px;border-radius:999px;font-size:.8rem}.status.done{background:#24967021;color:var(--green2)}.back{color:var(--green2);text-decoration:none;font-weight:700}.lesson-layout{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:20px}.panel{padding:28px;border-radius:20px}.panel p,.panel li{line-height:1.7;color:var(--muted)}.equation{font-family:Georgia,serif;font-size:1.45rem;text-align:center;padding:25px;border-radius:15px;background:#1a7a6814;margin:24px 0}.lesson-layout aside{display:grid;align-content:start;gap:13px}.lesson-layout textarea,.chat textarea{width:100%;min-height:130px;border:1px solid var(--line);background:#ffffff73;color:inherit;border-radius:12px;padding:13px;resize:vertical}.dark textarea{background:#ffffff0a}.full,.complete{width:100%}.complete{border:1px solid var(--line);background:var(--card);color:inherit;padding:13px;border-radius:12px}.complete.done{background:#24967021;color:var(--green2)}.stage-list{display:grid;gap:12px}.stage{display:grid;grid-template-columns:48px 1fr auto;gap:16px;align-items:center;padding:19px;border-radius:17px}.stage>span{width:42px;height:42px;display:grid;place-items:center;border-radius:12px;background:#1a7a681a;font-weight:800;color:var(--green2)}.stage h3{margin:3px 0}.stage p{margin:4px 0;color:var(--muted)}.stage small{color:var(--green2);font-weight:800}.empty-workspace{text-align:center;padding:70px 30px;border-radius:22px}.empty-workspace>svg{width:62px;height:62px;color:var(--green2)}.empty-workspace p{max-width:720px;margin:12px auto 25px;color:var(--muted);line-height:1.7}.checklist{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}.checklist span{background:#1a7a6817;padding:8px 11px;border-radius:999px}.chat{max-width:850px;padding:28px;border-radius:21px;display:grid;gap:16px}.chat-intro{display:flex;gap:15px}.chat-intro>svg{width:34px;height:34px;color:var(--green2)}.chat-intro h2{margin:0}.chat-intro p{color:var(--muted)}.bubble{padding:15px;border-radius:15px;line-height:1.65}.bubble.ai{background:#1a7a6817}.progress-list{padding:24px;border-radius:20px;display:grid;gap:22px}.progress-list>div{display:grid;grid-template-columns:42px 1fr;gap:12px}.progress-list p{margin:4px 0 10px;color:var(--muted)}.muted{color:var(--muted)}.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}@media(max-width:1100px){.workspace-grid{grid-template-columns:repeat(2,1fr)}.hero{grid-template-columns:1fr}.helix{display:none}}@media(max-width:820px){.app{grid-template-columns:1fr}.sidebar{position:fixed;left:-290px;width:270px;transition:.2s}.sidebar.open{left:0}.menu,.mobile-close{display:grid}.mobile-close{margin-left:auto;color:#fff}.content{padding:28px 18px 60px}header{padding:0 16px}.stats,.settings-grid,.lesson-layout{grid-template-columns:1fr}.hero{padding:30px}.hero-actions{flex-wrap:wrap}.stage{grid-template-columns:42px 1fr}.stage button{grid-column:2}.header-course b{font-size:.78rem}}@media(max-width:560px){.workspace-grid,.stats{grid-template-columns:1fr}.hero h1{font-size:2.2rem}.module{padding:20px}.lesson{display:grid}.status{justify-self:start}.page-head h1{font-size:2.2rem}}.objectives{padding:1.4rem;margin-bottom:1rem}.objectives ul{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:.8rem;padding:0;list-style:none}.objectives li{display:flex;gap:.6rem;align-items:flex-start}.objectives svg{width:18px;color:var(--accent)}.lesson-rich{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;margin-bottom:1rem}.lesson-rich .panel{min-height:180px}.ai-check,.assessment{margin:1rem 0}.question{border-top:1px solid var(--border);padding:1.1rem 0}.options{display:grid;gap:.55rem;margin-top:.75rem}.options label{display:flex;gap:.65rem;align-items:flex-start;padding:.7rem;border:1px solid var(--border);border-radius:10px;cursor:pointer}.tf{display:flex;gap:.6rem;margin-top:.7rem}.tf button,.mastery button{border:1px solid var(--border);background:var(--surface);padding:.5rem .8rem;border-radius:8px}.selected{outline:2px solid var(--accent)!important}.explain{padding:.65rem;border-radius:8px}.right{background:#18a0641f}.wrong{background:#dc5a501f}.score-card{display:flex;justify-content:center;gap:1rem;align-items:center;font-size:1.4rem;padding:1rem}.search{width:100%;padding:1rem;border-radius:12px;border:1px solid var(--border);background:var(--surface);color:inherit;margin-bottom:1rem}.concept-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1rem}.mastery{margin-top:1rem}.mastery>div{display:flex;gap:.4rem;margin-top:.4rem}.stage{padding:0}.stage summary{display:flex;align-items:center;gap:1rem;padding:1.1rem;cursor:pointer;list-style:none}.stage summary>span{display:grid;place-items:center;min-width:42px;height:42px;border-radius:12px;background:var(--accent-soft);font-weight:800}.stage summary div{flex:1}.stage summary h3,.stage summary p{margin:.15rem 0}.stage-body{padding:0 1.3rem 1.3rem 4.9rem;border-top:1px solid var(--border)}.mini-check{display:grid;gap:.5rem;margin:1rem 0}.coord-row{display:grid;grid-template-columns:minmax(180px,1fr) 70px 2fr;gap:1rem;align-items:center;margin:.9rem 0}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:.75rem;border-bottom:1px solid var(--border)}@media(max-width:800px){.lesson-rich{grid-template-columns:1fr}.stage-body{padding:1rem}.coord-row{grid-template-columns:1fr 60px}.coord-row .bar{grid-column:1/-1}.objectives ul{grid-template-columns:1fr}}:root{--border: var(--line);--surface: var(--card);--accent: var(--green2);--accent-soft: rgba(26, 122, 104, .1)}.header-actions{display:flex;align-items:center;gap:8px}.header-auth{border:1px solid var(--line);background:var(--card);color:inherit;border-radius:10px;padding:8px 12px;cursor:pointer}.source-policy,.lesson-source{display:flex;align-items:flex-start;gap:12px;padding:16px 18px;border-radius:16px;margin:0 0 20px}.source-policy b,.source-policy span,.lesson-source b,.lesson-source span{display:block}.source-policy span,.lesson-source span{color:var(--muted);line-height:1.55;margin-top:3px}.lesson-source svg{flex:0 0 auto;color:var(--green2);margin-top:2px}.source-caption{font-size:.88rem;border-top:1px solid var(--line);padding-top:12px}.interpret-box{display:grid;gap:5px;margin-top:18px;padding:14px;border-radius:12px;background:#1a7a6814}.stage-list{display:grid;gap:14px}.stage{display:block!important;width:100%;overflow:hidden}.stage summary{display:grid!important;grid-template-columns:48px minmax(0,1fr) auto;align-items:center;gap:16px;width:100%;padding:20px 22px;box-sizing:border-box}.stage summary>span{width:42px;height:42px}.stage summary>div{min-width:0}.stage summary h3{overflow-wrap:anywhere;line-height:1.25}.stage summary p{max-width:760px}.stage summary>b{white-space:nowrap;color:var(--green2)}.stage-body{display:grid;gap:18px;padding:24px 28px 28px!important;border-top:1px solid var(--line)}.stage-guide{max-width:900px}.stage-guide h4{margin-top:0}.stage-guide li{line-height:1.65;margin:.35rem 0}.draft-label{display:grid;gap:8px;font-weight:700}.draft-label textarea,.stage-body textarea{display:block;width:100%;min-height:150px;box-sizing:border-box;border:1px solid var(--line);background:var(--card);color:inherit;border-radius:12px;padding:14px;font:inherit;resize:vertical}.mini-check{padding:16px;border-radius:13px;background:#1a7a680f}.mini-check label{display:flex;align-items:flex-start;gap:9px;line-height:1.45}.mini-check input{margin-top:3px}.stage-actions{margin-top:0}.access-denied{max-width:720px;margin:70px auto;padding:48px;text-align:center;border-radius:24px}.access-denied svg{width:54px;height:54px;color:var(--green2)}.access-denied p{color:var(--muted);line-height:1.7;margin-bottom:24px}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000007a;display:grid;place-items:center;padding:18px;z-index:100}.modal{position:relative;width:min(430px,100%);padding:30px;border-radius:22px}.modal input{width:100%;box-sizing:border-box;padding:12px;margin:7px 0;border:1px solid var(--line);border-radius:10px;background:var(--card);color:inherit}.modal-x{position:absolute;right:14px;top:14px;border:0;background:transparent;color:inherit;cursor:pointer}.error{color:#b33}.table-wrap{overflow-x:auto}@media(max-width:820px){.stage summary{grid-template-columns:42px minmax(0,1fr);padding:17px}.stage summary>b{grid-column:2;justify-self:start}.stage-body{padding:18px!important}.source-policy,.lesson-source{align-items:flex-start}.header-auth{display:none}}@media(max-width:560px){.stage summary{grid-template-columns:36px minmax(0,1fr);gap:11px;padding:15px 13px}.stage summary>span{width:34px;height:34px;border-radius:10px}.stage-body{padding:15px 13px 18px!important}.stage-actions{display:grid}.stage-actions button{width:100%}.source-policy,.lesson-source{padding:14px}.lesson-rich .panel{padding:20px}.equation{font-size:1.12rem;overflow-wrap:anywhere}.options label{padding:.65rem}.tf{display:grid;grid-template-columns:1fr 1fr}.content{overflow-x:hidden}}.locked-preview{max-width:760px;margin:24px auto;padding:48px;text-align:center;border-radius:24px}.locked-preview svg{width:48px;height:48px;color:var(--green2)}.locked-preview p{max-width:620px;margin:12px auto 0;color:var(--muted);line-height:1.7}.locked-card{opacity:.88}.locked-card span{display:flex;align-items:center;gap:7px}.locked-row{align-items:center}.locked-row>svg{color:var(--muted);flex:0 0 auto}.concept-summary{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:18px 22px;border-radius:16px;margin-bottom:16px}.concept-summary>div{display:flex;align-items:baseline;gap:8px}.concept-summary b{font-size:1.65rem}.concept-summary span,.concept-summary p{color:var(--muted)}.concept-summary p{margin:0;max-width:650px}.concept-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));align-items:stretch}.concept-card{display:flex;min-width:0;flex-direction:column}.concept-card h2{overflow-wrap:anywhere}.concept-card p{flex:1}.mastery>div{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px}.mastery button{min-width:0;white-space:normal;overflow-wrap:anywhere}.stage-context{padding:15px 17px;border-radius:13px;background:#1a7a6812}.stage-context small{font-size:.7rem;letter-spacing:.09em;font-weight:850;color:var(--green2)}.stage-context p{margin:6px 0 0;line-height:1.65;color:var(--ink)}.stage-guide ol{padding-left:1.35rem}.ai-activity{display:grid;gap:11px}.ai-activity h4{margin:0}.ai-activity.compact{padding:0;background:transparent;border:0;box-shadow:none}.ai-activity textarea{min-height:170px}.ai-activity button{justify-self:start}.ai-feedback{padding:15px 17px;border-radius:13px;background:#1a7a6817;border:1px solid var(--line)}.ai-feedback p{white-space:pre-wrap;margin:7px 0 0;line-height:1.65;color:var(--ink)}button:disabled{opacity:.65;cursor:wait}@media(max-width:700px){.concept-summary{display:grid}.concept-summary>div{justify-content:flex-start}.concept-grid{grid-template-columns:1fr}.mastery>div{grid-template-columns:1fr}.concept-card{padding:20px}.locked-preview{padding:32px 20px}.ai-activity button{width:100%}}:root{font-size:18px}body{font-size:1rem}.content{max-width:1380px}.concept-tools{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:stretch;margin-bottom:1rem}.concept-tools .search{margin:0}.reshuffle svg{width:17px}.mastery button{display:flex;align-items:center;justify-content:center;min-height:48px;padding:.55rem .35rem;line-height:1.05}.mastery button span{display:block;white-space:nowrap;font-size:.91rem}.voice-field{display:grid;gap:8px}.voice-toolbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.voice-button,.speak-button{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line);background:#1a7a6814;color:var(--ink);border-radius:10px;padding:8px 11px;cursor:pointer}.voice-button svg,.speak-button svg{width:17px;height:17px}.voice-button.listening{background:#b63b36;color:#fff}.interim{color:var(--muted);font-style:italic}.voice-error{color:#a33833}.feedback-head{display:flex;justify-content:space-between;align-items:center;gap:12px}.setting-row{display:flex;justify-content:space-between;gap:20px;padding:15px 0;border-top:1px solid var(--line)}.setting-row:first-of-type{border-top:0}.setting-row span,.setting-row small{display:block}.setting-row small{color:var(--muted);margin-top:4px;line-height:1.45}.setting-row input{width:22px;height:22px;flex:0 0 auto}.mock-exam{display:grid;gap:18px}.mock-head{display:flex;justify-content:space-between;gap:24px;padding:20px;border-radius:16px;background:#1a7a6812}.mock-head h4{font-size:1.3rem;margin:5px 0}.mock-head p{color:var(--muted);margin:0}.timer{display:grid;grid-template-columns:auto auto;gap:8px;align-items:center;min-width:180px}.timer b{font-size:1.35rem}.timer button{grid-column:1/-1}.mock-questions{display:grid;gap:16px}.mock-question{padding:20px;border:1px solid var(--line);border-radius:16px;background:#ffffff59}.dark .mock-question{background:#ffffff08}.mock-title{display:flex;justify-content:space-between;gap:16px;align-items:start}.mock-title h5{font-size:1.08rem;margin:0}.mock-title span{white-space:nowrap;color:var(--green2);font-weight:800}.mock-question>p{line-height:1.65}.lesson-rich .panel{min-height:unset}@media(max-width:820px){:root{font-size:17px}.concept-tools{grid-template-columns:1fr}.reshuffle{width:100%}.mock-head{display:grid}.timer{justify-self:start}.feedback-head{align-items:flex-start}}@media(max-width:560px){:root{font-size:16.5px}.mastery>div{grid-template-columns:repeat(3,minmax(0,1fr))}.mastery button span{font-size:.78rem}.mock-title{display:grid;gap:5px}.mock-question{padding:15px}.voice-toolbar button{width:100%}}.coordinator-layout,.coordinator-content{width:100%;min-width:0}.coordinator-layout{display:grid;gap:1.2rem}.coordinator-heading,.selected-student-head{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem}.coordinator-heading h2,.selected-student-head h2{margin:0}.coordinator-heading p,.selected-student-head p{margin:.35rem 0 0}.student-card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:1rem}.student-summary-card{display:block;width:100%;min-width:0;padding:1rem;text-align:left;color:inherit;background:var(--card);border:1px solid var(--line);border-radius:16px}.student-summary-card:hover,.student-summary-card.selected-student{transform:none;border-color:var(--green2);box-shadow:0 0 0 2px #1a7a681f}.student-summary-card strong,.student-summary-card small{display:block;overflow-wrap:anywhere}.student-summary-card small{margin-top:.25rem;color:var(--muted)}.student-summary-card dl{display:grid;gap:.45rem;margin:1rem 0 0}.student-summary-card dl>div{display:flex;justify-content:space-between;gap:1rem}.student-summary-card dt{color:var(--muted)}.student-summary-card dd{margin:0;font-weight:700;text-align:right;overflow-wrap:anywhere}.coordinator-stats{margin-bottom:1.2rem}.coordinator-table{min-width:0}.coordinator-lesson-grid{display:grid;gap:1rem}.coordinator-lesson-grid>div>div:first-child{display:flex;justify-content:space-between;gap:1rem;margin-bottom:.45rem}@media(max-width:820px){.coordinator-layout .stats{grid-template-columns:1fr}.coordinator-heading,.selected-student-head{display:grid}}@media(max-width:700px){.coordinator-layout,.coordinator-layout>*,.coordinator-content,.coordinator-content>*{min-width:0;max-width:100%}.coordinator-layout .table-wrap{overflow:visible;padding:.9rem}.coordinator-layout .table-wrap table,.coordinator-layout .table-wrap thead,.coordinator-layout .table-wrap tbody,.coordinator-layout .table-wrap tr,.coordinator-layout .table-wrap th,.coordinator-layout .table-wrap td{display:block;width:100%;min-width:0}.coordinator-layout .table-wrap thead{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.coordinator-layout .table-wrap tbody{display:grid;gap:1rem}.coordinator-layout .table-wrap tr{padding:.75rem 1rem;border:1px solid var(--line);border-radius:16px;background:var(--card)}.coordinator-layout .table-wrap td{display:grid;grid-template-columns:minmax(7.5rem,40%) minmax(0,1fr);gap:.75rem;padding:.65rem 0;border-bottom:1px solid var(--line);text-align:right;white-space:normal;overflow-wrap:anywhere}.coordinator-layout .table-wrap td:last-child{border-bottom:0}.coordinator-layout .table-wrap td:before{content:attr(data-label);color:var(--muted);font-weight:700;text-align:left}}@media(max-width:420px){.student-card-grid{grid-template-columns:1fr}.coordinator-layout .table-wrap td{grid-template-columns:1fr;gap:.25rem;text-align:left}}.app-loading{min-height:100vh;display:grid;place-items:center;padding:1rem;background:var(--bg, #edf4f1);color:var(--ink)}.app-loading .panel{width:min(30rem,100%);text-align:center}.app-loading .panel h2{margin-top:0}.app-loading .panel p{margin-bottom:0}.ai-markdown{min-width:0;color:var(--ink);font-size:1rem;line-height:1.68;overflow-wrap:anywhere}.ai-markdown>:first-child{margin-top:0}.ai-markdown>:last-child{margin-bottom:0}.ai-markdown p{margin:0 0 .85rem;color:inherit;white-space:normal}.ai-markdown h1,.ai-markdown h2,.ai-markdown h3,.ai-markdown h4,.ai-markdown h5,.ai-markdown h6{margin:1.05rem 0 .5rem;color:var(--ink);line-height:1.3}.ai-markdown h1{font-size:1.28rem}.ai-markdown h2{font-size:1.18rem}.ai-markdown h3,.ai-markdown h4,.ai-markdown h5,.ai-markdown h6{font-size:1.05rem}.ai-markdown ul,.ai-markdown ol{margin:.45rem 0 .9rem;padding-left:1.35rem}.ai-markdown li{margin:.25rem 0;color:inherit}.ai-markdown li::marker{color:var(--green2);font-weight:700}.ai-markdown strong{color:var(--ink);font-weight:750}.ai-markdown a{color:var(--green2);text-decoration-thickness:.08em;text-underline-offset:.15em}.ai-markdown blockquote{margin:.8rem 0;padding:.7rem .9rem;border-left:3px solid var(--green2);background:#1a7a6812;border-radius:0 10px 10px 0}.ai-markdown code{padding:.1rem .3rem;border-radius:5px;background:#1a7a681a;color:inherit;font-size:.92em}.ai-markdown pre{max-width:100%;overflow-x:auto;padding:.9rem;border:1px solid var(--line);border-radius:11px;background:#081f1b14}.dark .ai-markdown pre{background:#ffffff0a}.ai-markdown pre code{padding:0;background:transparent}.ai-markdown .katex-display{max-width:100%;margin:.8rem 0;padding:.35rem 0;overflow-x:auto;overflow-y:hidden}.ai-markdown .katex{font-size:1.02em}.bubble.ai .ai-markdown,.ai-feedback .ai-markdown{margin-top:.55rem}.bubble.ai{white-space:normal}.ai-feedback .ai-markdown p{color:var(--ink)}@media(max-width:560px){.ai-markdown{font-size:.98rem;line-height:1.62}.ai-markdown ul,.ai-markdown ol{padding-left:1.15rem}.ai-markdown .katex-display{font-size:.92rem}}.tutor-chat{width:min(940px,100%);max-width:940px}.tutor-chat .chat-intro{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:start}.tutor-new-topic{white-space:nowrap;align-self:start}.tutor-history{display:grid;gap:.8rem;max-height:min(58vh,680px);overflow-y:auto;padding:.15rem .25rem .15rem 0;scrollbar-gutter:stable}.tutor-turn{max-width:92%;margin:0}.tutor-turn p{margin:.55rem 0 0;white-space:pre-wrap}.assistant-turn{justify-self:start;border:1px solid rgba(26,122,104,.12)}.user-turn{justify-self:end;background:#17312c12;border:1px solid var(--line)}.dark .user-turn{background:#ffffff0e}.tutor-empty{padding:.8rem .95rem;border-radius:12px;background:#1a7a680e}.tutor-empty p{margin:.3rem 0 0;color:var(--muted)}.tutor-suggestions{display:flex;flex-wrap:wrap;gap:.55rem}.suggestion-chip{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--line);border-radius:999px;padding:.55rem .8rem;background:#1a7a6812;color:var(--ink);cursor:pointer;text-align:left;line-height:1.3;transition:border-color .16s ease,background .16s ease,transform .16s ease}.suggestion-chip:hover{border-color:var(--green2);background:#1a7a681f;transform:translateY(-1px)}.lesson-equation{display:grid;place-items:center;min-height:90px;padding:1.1rem 1rem;font-family:Times New Roman,Georgia,serif;font-style:italic;font-weight:500}.lesson-equation .katex-display{width:100%;margin:0;overflow-x:auto;overflow-y:hidden;padding:.15rem 0}.lesson-equation .katex{font-size:clamp(1.2rem,2vw,1.55rem)}.lesson-equation p{margin:0;color:var(--ink)}@media(max-width:700px){.tutor-chat .chat-intro{grid-template-columns:auto minmax(0,1fr)}.tutor-new-topic{grid-column:1 / -1;width:100%}.tutor-turn{max-width:100%}.tutor-history{max-height:none;overflow:visible}.tutor-suggestions{display:grid}.suggestion-chip{width:100%;border-radius:12px}.lesson-equation{min-height:72px;padding:.85rem .55rem}.lesson-equation .katex{font-size:1.08rem}}.developer-credit{display:grid;gap:.14rem;padding:.75rem .2rem .2rem;border-top:1px solid rgba(255,255,255,.18);color:#ffffffc2;text-decoration:none;font-size:.68rem;line-height:1.4}.developer-credit strong{color:#fffffff5;font-size:.72rem;font-weight:750}.developer-credit:hover,.developer-credit:focus-visible{color:#fff}.developer-credit:focus-visible{outline:2px solid rgba(255,255,255,.75);outline-offset:4px;border-radius:4px}.about-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}.about-card{min-width:0}.about-card h2{margin-top:0}.about-lead{grid-column:1 / -1}.about-identity{display:grid;gap:.25rem}.about-identity strong{color:var(--ink);font-size:1.15rem}.citation-block{margin:1rem 0;padding:1rem 1.1rem;border-left:4px solid var(--green2);border-radius:0 12px 12px 0;background:#1a7a6814;color:var(--ink);line-height:1.65}@media(max-width:760px){.about-grid{grid-template-columns:1fr}.about-lead{grid-column:auto}}