@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:"0.16.47"}.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>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .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}pre code.hljs{display:block;overflow-x:auto;padding:1em}code.hljs{padding:3px 5px}.hljs{color:#383a42;background:#fafafa}.hljs-comment,.hljs-quote{color:#a0a1a7;font-style:italic}.hljs-doctag,.hljs-keyword,.hljs-formula{color:#a626a4}.hljs-section,.hljs-name,.hljs-selector-tag,.hljs-deletion,.hljs-subst{color:#e45649}.hljs-literal{color:#0184bb}.hljs-string,.hljs-regexp,.hljs-addition,.hljs-attribute,.hljs-meta .hljs-string{color:#50a14f}.hljs-attr,.hljs-variable,.hljs-template-variable,.hljs-type,.hljs-selector-class,.hljs-selector-attr,.hljs-selector-pseudo,.hljs-number{color:#986801}.hljs-symbol,.hljs-bullet,.hljs-link,.hljs-meta,.hljs-selector-id,.hljs-title{color:#4078f2}.hljs-built_in,.hljs-title.class_,.hljs-class .hljs-title{color:#c18401}.hljs-emphasis{font-style:italic}.hljs-strong{font-weight:700}.hljs-link{text-decoration:underline}:root{--bg: #f3f4f8;--surface: #ffffff;--surface-2: #eef0f6;--border: #e3e6ee;--border-strong: #cdd2df;--text: #171d33;--text-2: #4a526b;--muted: #7b8299;--brand: #3d43f0;--brand-strong: #2f34cf;--brand-ink: #23268f;--brand-soft: #eceefe;--brand-softer: #f5f5ff;--on-brand: #ffffff;--kesari: #e88a1a;--kesari-deep: #c26f08;--kesari-soft: #fdf1e0;--ok: #178a50;--ok-soft: #e5f5ec;--warn: #b45309;--warn-soft: #fdf1e0;--err: #cc3344;--err-soft: #fcebed;--purple: #7048c8;--cyan: #0d7fa6;--font-ui: "Instrument Sans", "Segoe UI", system-ui, sans-serif;--font-display: "Space Grotesk", "Instrument Sans", sans-serif;--font-data: "JetBrains Mono", ui-monospace, monospace;--r-sm: 8px;--r-md: 12px;--r-lg: 16px;--shadow-1: 0 1px 2px rgba(23, 29, 51, .05);--shadow-2: 0 1px 2px rgba(23, 29, 51, .05), 0 4px 12px rgba(23, 29, 50, .06);--shadow-3: 0 2px 6px rgba(23, 29, 51, .08), 0 12px 32px rgba(23, 29, 50, .12);--ring: 0 0 0 3px rgba(61, 67, 240, .22);--sidebar-w: 248px}[data-theme=dark]{--bg: #0d1020;--surface: #151930;--surface-2: #1b2039;--border: #262c48;--border-strong: #363d60;--text: #eceef8;--text-2: #b9bfd6;--muted: #7e859e;--brand: #7b80ff;--brand-strong: #969aff;--brand-ink: #b6b9ff;--brand-soft: #232752;--brand-softer: #191d3d;--on-brand: #10123a;--kesari: #f5a03c;--kesari-deep: #ffb95e;--kesari-soft: #2c2110;--ok: #3fc584;--ok-soft: #12291e;--warn: #f0a13c;--warn-soft: #2c2110;--err: #f2707e;--err-soft: #301418;--purple: #a78bfa;--cyan: #38bdf8;--shadow-1: none;--shadow-2: 0 1px 2px rgba(0, 0, 0, .35), 0 4px 12px rgba(0, 0, 0, .25);--shadow-3: 0 2px 6px rgba(0, 0, 0, .3), 0 12px 32px rgba(0, 0, 0, .4);--ring: 0 0 0 3px rgba(123, 128, 255, .28)}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{background:var(--bg);color:var(--text);font-family:var(--font-ui);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}button{font-family:inherit;cursor:pointer}input,textarea,select{font-family:inherit;font-size:15px}a{color:var(--brand);text-decoration:none}:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}::selection{background:var(--brand-soft);color:var(--brand-ink)}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:8px;border:3px solid var(--bg)}::-webkit-scrollbar-track{background:transparent}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes rise{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes fade{0%{opacity:0}to{opacity:1}}@keyframes blink{0%,80%,to{opacity:.25}40%{opacity:1}}@keyframes shimmer{0%{background-position:-400px 0}to{background-position:400px 0}}.app-shell{display:grid;grid-template-columns:var(--sidebar-w) 1fr;min-height:100vh}.main-area{min-width:0;display:flex;flex-direction:column}.page{padding:32px 40px 96px;max-width:1120px;width:100%;margin:0 auto;flex:1;animation:fade .25s ease}.page-title{font-family:var(--font-display);font-size:26px;font-weight:700;letter-spacing:-.02em;color:var(--text);line-height:1.25}.page-sub{color:var(--muted);font-size:14px;margin-top:4px}.eyebrow{font-family:var(--font-data);font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}.sidebar{background:var(--surface);border-right:1px solid var(--border);padding:20px 12px 16px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow-y:auto}.sidebar-brand{display:flex;align-items:center;gap:11px;padding:4px 10px 20px}.brand-mark{width:38px;height:38px;border-radius:11px;background:var(--brand);color:var(--on-brand);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-2);flex-shrink:0}.brand-mark-img{width:48px;height:48px;border-radius:12px;object-fit:cover;box-shadow:var(--shadow-2);flex-shrink:0;image-rendering:-webkit-optimize-contrast;image-rendering:crisp-edges;image-rendering:pixelated;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.auth-hero-brand img{flex-shrink:0;image-rendering:-webkit-optimize-contrast;image-rendering:crisp-edges}.topbar img,img[src*="logo.webp"]{image-rendering:-webkit-optimize-contrast;image-rendering:crisp-edges}.brand-name{font-family:var(--font-display);font-weight:700;font-size:16.5px;letter-spacing:-.01em;color:var(--text);line-height:1.2}.brand-tag{font-family:var(--font-data);font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}.nav-section{margin:14px 10px 6px}.nav-item{display:flex;align-items:center;gap:11px;padding:9px 12px;margin:1px 0;border-radius:10px;color:var(--text-2);font-weight:550;font-size:13.5px;transition:background .12s,color .12s;border:none;background:transparent;text-align:left;width:100%;text-decoration:none}.nav-item:hover{background:var(--surface-2);color:var(--text)}.nav-item.active{background:var(--brand-soft);color:var(--brand-ink);font-weight:650}.nav-item .icon{color:var(--muted);transition:color .12s}.nav-item:hover .icon{color:var(--text-2)}.nav-item.active .icon{color:var(--brand)}.sidebar-footer{margin-top:auto;padding-top:14px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:10px}.sidebar-user{display:flex;align-items:center;gap:10px;padding:4px 6px;min-width:0}.avatar{width:34px;height:34px;border-radius:50%;background:var(--brand-soft);color:var(--brand-ink);display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-weight:700;font-size:14px;flex-shrink:0;overflow:hidden}.avatar img{width:100%;height:100%;object-fit:cover}.sidebar-user-meta{min-width:0;flex:1}.sidebar-user-name{font-weight:650;font-size:13px;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-user-mail{font-size:11.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.icon-btn{width:34px;height:34px;border-radius:9px;border:1px solid var(--border);background:var(--surface);color:var(--text-2);display:inline-flex;align-items:center;justify-content:center;transition:all .12s;flex-shrink:0}.icon-btn:hover{background:var(--surface-2);color:var(--text);border-color:var(--border-strong)}.topbar{display:none;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:40}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 18px;border-radius:10px;border:1px solid transparent;font-weight:600;font-size:14px;font-family:var(--font-ui);letter-spacing:.005em;transition:all .13s;background:var(--brand);color:var(--on-brand);box-shadow:var(--shadow-1);text-decoration:none;line-height:1.3}.btn:hover{background:var(--brand-strong);box-shadow:var(--shadow-2);transform:translateY(-1px)}.btn:active{transform:translateY(0)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}.btn-secondary{background:var(--surface);color:var(--text);border-color:var(--border-strong)}.btn-secondary:hover{background:var(--surface-2);color:var(--text);border-color:var(--border-strong)}.btn-danger{background:var(--err);color:#fff}.btn-danger:hover{background:#a82836}.btn-ghost{background:transparent;color:var(--text-2);box-shadow:none}.btn-ghost:hover{background:var(--surface-2);color:var(--text);box-shadow:none}.btn-sm{padding:7px 13px;font-size:13px;border-radius:9px}.btn-lg{padding:13px 24px;font-size:15px;border-radius:12px}.input{width:100%;padding:11px 14px;border-radius:10px;border:1.5px solid var(--border);background:var(--surface);color:var(--text);outline:none;transition:border-color .13s,box-shadow .13s}.input::placeholder{color:var(--muted)}.input:focus{border-color:var(--brand);box-shadow:var(--ring)}.label{display:block;font-size:12.5px;font-weight:650;letter-spacing:.01em;color:var(--text-2);margin-bottom:6px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:22px;box-shadow:var(--shadow-1)}.card-hover{transition:all .15s}.card-hover:hover{border-color:var(--border-strong);box-shadow:var(--shadow-2);transform:translateY(-1px)}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.stat-tile{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:18px 20px;box-shadow:var(--shadow-1);min-width:0}.stat-value{font-family:var(--font-display);font-size:30px;font-weight:700;letter-spacing:-.02em;line-height:1.15;color:var(--text);font-variant-numeric:tabular-nums}.stat-value.kesari{color:var(--kesari-deep)}.stat-label{font-size:12.5px;color:var(--muted);margin-top:2px;display:flex;align-items:center;gap:6px}.feature-tile{display:flex;gap:14px;align-items:flex-start;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:18px;box-shadow:var(--shadow-1);text-decoration:none;color:inherit;transition:all .15s}.feature-tile:hover{border-color:var(--brand);box-shadow:var(--shadow-2);transform:translateY(-2px)}.feature-icon{width:42px;height:42px;border-radius:11px;display:flex;align-items:center;justify-content:center;flex-shrink:0;background:var(--brand-soft);color:var(--brand)}.feature-title{font-family:var(--font-display);font-weight:650;font-size:14.5px;letter-spacing:-.01em;color:var(--text)}.feature-desc{font-size:12.5px;color:var(--muted);margin-top:2px;line-height:1.5}.chip-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}.chip{padding:7px 14px;border-radius:100px;border:1.5px solid var(--border);background:var(--surface);color:var(--text-2);font-size:13px;font-weight:600;transition:all .13s}.chip:hover{border-color:var(--brand);color:var(--brand-ink)}.chip.active{background:var(--brand);border-color:var(--brand);color:var(--on-brand)}.item-list{display:flex;flex-direction:column;gap:10px}.item-row{display:flex;align-items:center;gap:14px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);padding:14px 16px;box-shadow:var(--shadow-1);transition:all .14s;cursor:pointer}.item-row:hover{border-color:var(--brand);box-shadow:var(--shadow-2)}.item-icon{width:40px;height:40px;border-radius:10px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;flex-shrink:0}.item-body{flex:1;min-width:0}.item-title{font-weight:620;font-size:14px;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.item-sub{font-size:12.5px;color:var(--muted);margin-top:1px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tag{font-family:var(--font-data);font-size:11px;font-weight:550;padding:3px 10px;border-radius:100px;background:var(--surface-2);color:var(--text-2);white-space:nowrap}.tag.brand{background:var(--brand-soft);color:var(--brand-ink)}.tag.kesari{background:var(--kesari-soft);color:var(--kesari-deep)}.tag.ok{background:var(--ok-soft);color:var(--ok)}.tag.err{background:var(--err-soft);color:var(--err)}.chat-page{display:flex;flex-direction:column;height:100vh;padding:0;max-width:none}.chat-header{padding:14px 24px;background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:12px;flex-shrink:0}.chat-title{font-family:var(--font-display);font-weight:650;font-size:15.5px;letter-spacing:-.01em;color:var(--text);display:flex;align-items:center;gap:9px}.chat-title .icon{color:var(--brand)}.chat-sub{font-size:12px;color:var(--muted);margin-top:1px}.chat-messages{flex:1;overflow-y:auto;padding:24px 0 12px;display:flex;flex-direction:column}.chat-scroll{max-width:820px;width:100%;margin:0 auto;padding:0 24px;display:flex;flex-direction:column;gap:20px}.msg{display:flex;gap:12px;max-width:88%;animation:rise .22s ease both}.msg.user{align-self:flex-end;flex-direction:row-reverse}.msg-avatar{width:38px;height:38px;border-radius:50%;background:var(--brand-soft);color:var(--brand-ink);display:flex;align-items:center;justify-content:center;flex-shrink:0}.msg.user .msg-avatar{background:var(--brand);color:var(--on-brand)}.msg-bubble{background:var(--surface);border:1px solid var(--border);border-radius:6px 16px 16px;padding:14px 18px;box-shadow:var(--shadow-1);min-width:60px;overflow-wrap:anywhere}.msg.user .msg-bubble{background:var(--brand);border-color:var(--brand);color:var(--on-brand);border-radius:16px 6px 16px 16px}.msg.user .msg-bubble a{color:inherit;text-decoration:underline}.msg.user .msg-bubble strong,.msg.user .msg-bubble h1,.msg.user .msg-bubble h2,.msg.user .msg-bubble h3{color:inherit}.msg-meta{font-family:var(--font-data);font-size:10.5px;color:var(--muted);margin-top:8px;letter-spacing:.02em}.msg.user .msg-meta{color:var(--muted);text-align:right}.msg-img{border-radius:10px;max-width:260px;max-height:200px;object-fit:cover;margin-bottom:8px;display:block}.typing-dots{display:inline-flex;gap:5px;padding:6px 2px}.typing-dots span{width:7px;height:7px;border-radius:50%;background:var(--muted);animation:blink 1.2s infinite both}.typing-dots span:nth-child(2){animation-delay:.2s}.typing-dots span:nth-child(3){animation-delay:.4s}.chat-input-wrap{padding:14px 24px 18px;background:var(--surface);border-top:1px solid var(--border);flex-shrink:0}.chat-input-row{max-width:820px;margin:0 auto;display:flex;gap:10px;align-items:flex-end}.chat-input{flex:1;resize:none;padding:13px 16px;border-radius:14px;border:1.5px solid var(--border);background:var(--bg);color:var(--text);outline:none;max-height:180px;line-height:1.5;transition:border-color .13s,box-shadow .13s}.chat-input:focus{border-color:var(--brand);box-shadow:var(--ring);background:var(--surface)}.send-btn{width:46px;height:46px;border-radius:13px;background:var(--brand);color:var(--on-brand);border:none;display:flex;align-items:center;justify-content:center;transition:all .13s;flex-shrink:0;box-shadow:var(--shadow-1)}.send-btn:hover:not(:disabled){background:var(--brand-strong);transform:translateY(-1px)}.send-btn:disabled{opacity:.45}.session-strip{display:flex;gap:8px;padding:10px 24px;overflow-x:auto;border-top:1px solid var(--border);background:var(--surface);flex-shrink:0;scrollbar-width:thin}.session-pill{display:inline-flex;align-items:center;gap:8px;padding:7px 13px;border-radius:100px;border:1px solid var(--border);background:var(--surface);color:var(--text-2);font-size:12.5px;font-weight:550;cursor:pointer;white-space:nowrap;transition:all .12s;max-width:240px}.session-pill:hover{border-color:var(--brand);color:var(--brand-ink);background:var(--brand-softer)}.session-pill.active{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-ink)}.session-pill span{overflow:hidden;text-overflow:ellipsis}.session-pill .icon{color:var(--muted);flex-shrink:0}.session-pill:hover .pill-x,.session-pill .pill-x:hover{color:var(--err)}.pill-x{color:var(--muted);display:inline-flex;flex-shrink:0;background:none;border:none;padding:0}.quiz-taker{max-width:760px;margin:0 auto}.quiz-progress{display:flex;align-items:center;gap:14px;margin-bottom:20px}.quiz-progress-bar{flex:1;height:6px;background:var(--surface-2);border-radius:6px;overflow:hidden}.quiz-progress-fill{height:100%;background:var(--brand);border-radius:6px;transition:width .3s ease}.quiz-option{display:block;width:100%;text-align:left;padding:14px 16px;margin:9px 0;border-radius:12px;border:1.5px solid var(--border);background:var(--surface);color:var(--text);font-size:14.5px;transition:all .13s;line-height:1.5}.quiz-option:hover:not(:disabled){border-color:var(--brand);background:var(--brand-softer)}.quiz-option.selected{border-color:var(--brand);background:var(--brand-soft);font-weight:600;color:var(--brand-ink)}.quiz-option.correct{border-color:var(--ok);background:var(--ok-soft);color:var(--ok);font-weight:600}.quiz-option.wrong{border-color:var(--err);background:var(--err-soft);color:var(--err)}.quiz-timer{font-family:var(--font-data);font-variant-numeric:tabular-nums;font-weight:600;color:var(--brand-ink);background:var(--brand-soft);padding:6px 14px;border-radius:100px;font-size:13.5px;display:inline-flex;align-items:center;gap:7px}.quiz-timer.warning{color:var(--err);background:var(--err-soft);animation:blink 1s infinite}.qnav{display:flex;gap:6px;margin-top:26px;flex-wrap:wrap}.qnav-btn{width:36px;height:36px;border-radius:9px;border:1.5px solid var(--border);background:var(--surface);color:var(--text-2);font-family:var(--font-data);font-size:12.5px;font-weight:550;transition:all .12s}.qnav-btn:hover:not(:disabled){border-color:var(--brand)}.qnav-btn.answered{background:var(--brand);border-color:var(--brand);color:var(--on-brand)}.qnav-btn.current{box-shadow:var(--ring);border-color:var(--brand)}.news-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}.news-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-1);transition:all .15s;cursor:pointer;display:flex;flex-direction:column;text-decoration:none;color:inherit}.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--border-strong)}.news-img{width:100%;height:150px;object-fit:cover;background:var(--surface-2)}.news-body{padding:15px 17px;flex:1;display:flex;flex-direction:column;gap:7px}.news-cat{font-family:var(--font-data);font-size:10.5px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--brand)}.news-title{font-family:var(--font-display);font-weight:650;font-size:14.5px;letter-spacing:-.01em;color:var(--text);line-height:1.4}.news-summary{font-size:13px;color:var(--text-2);line-height:1.55;flex:1}.news-meta{font-family:var(--font-data);font-size:11px;color:var(--muted)}.lb-table{width:100%;border-collapse:separate;border-spacing:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-1)}.lb-table thead th{background:var(--surface-2);color:var(--muted);padding:11px 18px;text-align:left;font-family:var(--font-data);font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;border-bottom:1px solid var(--border)}.lb-table tbody td{padding:13px 18px;border-bottom:1px solid var(--border);font-size:14px}.lb-table tbody tr:last-child td{border-bottom:none}.lb-table tbody tr.me{background:var(--brand-softer)}.lb-table tbody tr.me td:first-child{box-shadow:inset 3px 0 0 var(--brand)}.rank-badge{font-family:var(--font-data);width:32px;height:32px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-weight:600;font-size:12.5px;background:var(--surface-2);color:var(--text-2);font-variant-numeric:tabular-nums}.rank-badge.top1{background:var(--kesari);color:#fff}.rank-badge.top2{background:#9aa3b8;color:#fff}.rank-badge.top3{background:#b97a3f;color:#fff}.lb-score{font-family:var(--font-data);font-weight:600;font-variant-numeric:tabular-nums}.auth-wrap{min-height:100vh;display:grid;grid-template-columns:1fr 1fr;background:var(--bg)}.auth-hero{position:relative;overflow:hidden;background:linear-gradient(160deg,var(--brand-ink) 0%,var(--brand-strong) 55%,var(--brand) 100%);color:#fff;display:flex;flex-direction:column;justify-content:space-between;padding:44px 48px}.auth-hero .wheel-mark{position:absolute;right:-70px;bottom:-70px;color:#fff}.auth-hero-brand{display:flex;align-items:center;justify-content:center;gap:11px;text-align:center}.auth-hero-brand img{flex-shrink:0;max-width:64px;max-height:64px;width:64px;height:64px}.auth-hero-brand .brand-mark{background:#ffffff24;color:#fff;box-shadow:none;border:1px solid rgba(255,255,255,.25)}.auth-hero-title{font-family:var(--font-display);font-size:clamp(28px,3.2vw,42px);font-weight:700;letter-spacing:-.025em;line-height:1.15;max-width:420px}.auth-hero-title em{font-style:normal;color:#ffd9a3}.auth-hero-sub{margin-top:14px;font-size:15px;line-height:1.65;color:#ffffffc7;max-width:400px}.auth-hero-points{display:flex;flex-direction:column;gap:10px;margin-top:28px}.auth-point{display:flex;align-items:center;gap:10px;font-size:13.5px;color:#ffffffe0}.auth-point .icon{color:#ffd9a3}.auth-panel{display:flex;align-items:center;justify-content:center;padding:40px 32px}.auth-card{width:100%;max-width:380px;animation:rise .35s ease both}.auth-logo{width:48px;height:48px;border-radius:13px;background:var(--brand);color:var(--on-brand);display:flex;align-items:center;justify-content:center;margin-bottom:22px;box-shadow:var(--shadow-2)}.auth-logo-img{width:96px;height:96px;border-radius:20px;margin-bottom:24px;box-shadow:var(--shadow-2);object-fit:cover;image-rendering:-webkit-optimize-contrast;image-rendering:crisp-edges}.auth-title{font-family:var(--font-display);font-size:24px;font-weight:700;letter-spacing:-.02em;margin-bottom:6px}.auth-sub{color:var(--muted);font-size:14px;margin-bottom:26px}.google-btn{width:100%;background:var(--surface);border:1.5px solid var(--border-strong);color:var(--text);font-weight:600}.google-btn:hover{background:var(--surface-2);border-color:var(--border-strong)}.google-g{font-family:var(--font-display);font-weight:700;font-size:16px;background:linear-gradient(90deg,#4285f4,#ea4335,#fbbc05,#34a853);-webkit-background-clip:text;background-clip:text;color:transparent}.divider{display:flex;align-items:center;gap:14px;color:var(--muted);font-family:var(--font-data);font-size:11px;letter-spacing:.1em;text-transform:uppercase;margin:20px 0}.divider:before,.divider:after{content:"";flex:1;height:1px;background:var(--border)}.link-btn{background:none;border:none;color:var(--brand);font-weight:600;padding:0;font-size:inherit}.link-btn:hover{text-decoration:underline}.empty-state{text-align:center;padding:56px 20px;color:var(--muted)}.empty-icon{width:56px;height:56px;margin:0 auto 16px;border-radius:16px;background:var(--surface-2);color:var(--muted);display:flex;align-items:center;justify-content:center}.empty-title{font-family:var(--font-display);font-weight:650;font-size:15.5px;color:var(--text)}.empty-sub{font-size:13.5px;margin-top:6px;max-width:380px;margin-left:auto;margin-right:auto;line-height:1.6}.spinner{width:24px;height:24px;border:3px solid var(--surface-2);border-top-color:var(--brand);border-radius:50%;animation:spin .75s linear infinite}.alert{display:flex;gap:10px;align-items:flex-start;padding:12px 16px;border-radius:12px;font-size:13.5px;line-height:1.55;border:1px solid}.alert.err{background:var(--err-soft);border-color:color-mix(in srgb,var(--err) 25%,transparent);color:var(--err)}.alert.ok{background:var(--ok-soft);border-color:color-mix(in srgb,var(--ok) 25%,transparent);color:var(--ok)}.alert.info{background:var(--brand-softer);border-color:color-mix(in srgb,var(--brand) 20%,transparent);color:var(--brand-ink)}.pro-badge{display:inline-flex;align-items:center;gap:5px;background:linear-gradient(135deg,var(--kesari),var(--kesari-deep));color:#fff;font-family:var(--font-data);font-size:10.5px;font-weight:700;letter-spacing:.08em;padding:4px 11px;border-radius:100px;box-shadow:var(--shadow-1)}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.flex-wrap{flex-wrap:wrap}.gap-6{gap:6px}.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}.grow{flex:1;min-width:0}.mb-8{margin-bottom:8px}.mb-16{margin-bottom:16px}.mb-24{margin-bottom:24px}.mt-8{margin-top:8px}.mt-16{margin-top:16px}.muted{color:var(--muted)}.small{font-size:13px}.mono{font-family:var(--font-data)}.tnum{font-variant-numeric:tabular-nums}.bottom-nav{display:none}.hero-panel{position:relative;overflow:hidden;border-radius:20px;background:linear-gradient(135deg,var(--brand-ink) 0%,var(--brand-strong) 48%,var(--brand) 100%);color:#fff;padding:30px 34px;box-shadow:var(--shadow-3);margin-bottom:24px}.hero-panel .eyebrow{color:#ffffff9e;letter-spacing:.16em}.hero-greet{font-family:var(--font-display);font-size:clamp(22px,2.6vw,30px);font-weight:700;letter-spacing:-.02em;line-height:1.18;margin-top:6px}.hero-sub{color:#ffffffc7;font-size:14px;margin-top:7px}.hero-sub strong{color:#ffd9a3;font-weight:650}.hero-actions{display:flex;gap:10px;margin-top:22px;flex-wrap:wrap;position:relative;z-index:2}.hero-btn{display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:11px;font-weight:650;font-size:14px;text-decoration:none;transition:all .15s;border:1px solid transparent}.hero-btn.solid{background:#fff;color:var(--brand-ink);box-shadow:0 4px 14px #0000002e}.hero-btn.solid:hover{transform:translateY(-2px);box-shadow:0 8px 22px #0000003d}.hero-btn.ghost{background:#ffffff1f;color:#fff;border-color:#ffffff4d}.hero-btn.ghost:hover{background:#fff3;transform:translateY(-2px)}.hero-streak-chip{position:absolute;top:26px;right:30px;z-index:2;display:inline-flex;align-items:center;gap:7px;background:#ffffff21;border:1px solid rgba(255,255,255,.26);color:#ffd9a3;font-family:var(--font-data);font-size:12px;font-weight:600;padding:7px 14px;border-radius:100px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.hero-panel .wheel-mark{position:absolute;right:-46px;top:-52px;pointer-events:none}.sec-head{display:flex;align-items:baseline;justify-content:space-between;margin:28px 0 13px}.sec-head:first-of-type{margin-top:0}.sec-title{font-family:var(--font-display);font-weight:650;font-size:15.5px;letter-spacing:-.01em;color:var(--text)}.sec-link{font-size:12.5px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:4px}.sec-link:hover{text-decoration:underline}.cont-strip{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(230px,280px);gap:12px;overflow-x:auto;padding-bottom:6px;scrollbar-width:thin}.cont-card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:14px 16px;cursor:pointer;transition:all .15s;min-width:0;text-align:left}.cont-card:hover{border-color:var(--brand);box-shadow:var(--shadow-2);transform:translateY(-2px)}.cont-card-top{display:flex;align-items:center;gap:9px;color:var(--brand);margin-bottom:9px}.cont-card-title{font-weight:620;font-size:13.5px;color:var(--text);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:39px}.cont-card-meta{font-family:var(--font-data);font-size:11px;color:var(--muted);margin-top:8px}.mini-chart-note{font-family:var(--font-data);font-size:10.5px;color:var(--muted);margin-top:8px}.news-mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.news-mini{display:flex;gap:12px;align-items:center;background:var(--surface);border:1px solid var(--border);border-radius:13px;padding:11px 13px;text-decoration:none;color:inherit;transition:all .14s;min-width:0}.news-mini:hover{border-color:var(--border-strong);box-shadow:var(--shadow-2);transform:translateY(-2px)}.news-mini img{width:62px;height:46px;border-radius:9px;object-fit:cover;flex-shrink:0;background:var(--surface-2)}.news-mini-body{min-width:0}.news-mini-cat{font-family:var(--font-data);font-size:9.5px;letter-spacing:.09em;text-transform:uppercase;color:var(--brand)}.news-mini-title{font-weight:600;font-size:12.5px;line-height:1.4;margin-top:2px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--text)}.skel{position:relative;overflow:hidden;background:var(--surface-2);border-radius:10px}.skel:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.4),transparent);animation:shimmer 1.5s infinite}[data-theme=dark] .skel:after{background:linear-gradient(90deg,transparent,rgba(255,255,255,.05),transparent)}.rise{animation:rise .45s cubic-bezier(.22,.8,.36,1) both}.d1{animation-delay:.04s}.d2{animation-delay:.09s}.d3{animation-delay:.14s}.d4{animation-delay:.19s}.d5{animation-delay:.24s}.d6{animation-delay:.29s}@media (max-width: 960px){.auth-wrap{grid-template-columns:1fr}.auth-hero{display:none}.news-mini-grid{grid-template-columns:1fr}.hero-panel{padding:24px 20px}.hero-streak-chip{position:static;margin-bottom:14px;display:inline-flex}}@media (max-width: 860px){.app-shell{grid-template-columns:1fr}.sidebar{display:none}.topbar{display:flex}.page{padding:20px 16px 100px}.grid-2,.grid-4{grid-template-columns:1fr}.msg{max-width:100%}.chat-page{height:100dvh}.chat-scroll{padding:0 16px}.chat-input-wrap{padding:12px 16px 14px}.bottom-nav{display:flex;position:fixed;bottom:0;left:0;right:0;background:var(--surface);border-top:1px solid var(--border);z-index:50;padding:6px 4px calc(6px + env(safe-area-inset-bottom));justify-content:space-around;box-shadow:0 -4px 20px #171d330f}.bottom-nav a{display:flex;flex-direction:column;align-items:center;gap:3px;font-size:10px;font-weight:600;color:var(--muted);padding:6px 10px;border-radius:10px}.bottom-nav a.active{color:var(--brand)}.bottom-nav .icon{width:21px;height:21px}}.rs-content{--bg: var(--surface, #ffffff);--surface: var(--surface-2, #f4f5f9);--surface2: var(--brand-softer, #f0f1fe);--border: var(--border, #e3e6ee);--text: var(--text, #171d33);--text-muted: var(--muted, #7b8299);--accent: var(--brand, #3d43f0);--accent-light: var(--brand-soft, #eceefe);--heading: var(--brand-ink, #23268f);--success: var(--ok, #178a50);--warning: var(--warn, #b45309);--error: var(--err, #cc3344);--purple: var(--purple, #7048c8);--font: "Instrument Sans", "Segoe UI", system-ui, sans-serif;--font-mono: "JetBrains Mono", ui-monospace, monospace;--radius: 10px;--radius-lg: 14px;--shadow: var(--shadow-1, 0 1px 2px rgba(23, 29, 51, .05));--shadow-lg: var(--shadow-2, 0 4px 12px rgba(23, 29, 50, .08));color:var(--text);font-family:var(--font);font-size:15.5px;line-height:1.7;word-wrap:break-word}@keyframes rsFadeIn{0%{opacity:0}to{opacity:1}}@keyframes rsSlideUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes rsScaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.rs-content h1{font-size:1.55em;font-weight:800;letter-spacing:-.02em;margin:28px 0 10px;padding-bottom:8px;border-bottom:2px solid var(--border);color:var(--heading)}.rs-content h2{font-size:1.25em;font-weight:700;margin:24px 0 10px;padding:10px 0 8px 14px;border-left:5px solid var(--accent);border-radius:0 6px 6px 0;color:var(--heading);background:linear-gradient(to right,var(--accent-light),transparent 80%)}.rs-content h3{font-size:1.1em;font-weight:600;margin:20px 0 8px;padding:8px 0 6px 12px;border-left:3px solid var(--accent-light);border-radius:0 4px 4px 0;color:var(--heading);background:linear-gradient(to right,rgba(2,136,209,.04),transparent 60%)}.rs-content h4{font-size:1em;font-weight:600;color:var(--text-muted);margin:14px 0 6px}.rs-content p{margin:8px 0;line-height:1.75}.rs-content a{color:var(--accent);text-decoration:none;font-weight:500}.rs-content a:hover{text-decoration:underline}.rs-content strong{font-weight:700;color:var(--heading)}.rs-content em{font-style:italic}.rs-content ul,.rs-content ol{padding-left:22px;margin:8px 0}.rs-content li{margin:4px 0;line-height:1.7}.rs-content ul>li::marker{color:var(--accent)}.rs-content hr{border:none;height:1px;background:var(--border);margin:24px 0}.rs-content blockquote{border-left:4px solid var(--accent);padding:12px 16px;margin:12px 0;background:var(--accent-light);border-radius:0 8px 8px 0;font-style:italic;font-size:14.5px;line-height:1.7}.rs-content blockquote strong{color:var(--accent)}.rs-content code:not(pre code){background:#fce4ec;color:#c62828;border:1px solid #f8bbd0;border-radius:4px;padding:1px 6px;font-size:.88em;font-family:var(--font-mono)}[data-theme=dark] .rs-content code:not(pre code){background:#ec48991f;color:#f9a8d4;border-color:#f472b640}.rs-content img{max-width:100%;height:auto;border-radius:8px;margin:12px 0;display:block}.rs-content .card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:16px 18px;margin:12px 0;box-shadow:var(--shadow);animation:rsSlideUp .4s ease both}.rs-content .card:hover{box-shadow:var(--shadow-lg)}.rs-content .card-accent{border-left:4px solid var(--accent);background:linear-gradient(135deg,var(--accent-light) 0%,var(--surface) 100%)}.rs-content .card-success{border-left:4px solid var(--success);background:linear-gradient(135deg,rgba(16,185,129,.06) 0%,var(--surface) 100%)}.rs-content .card-warning{border-left:4px solid var(--warning);background:linear-gradient(135deg,rgba(245,158,11,.06) 0%,var(--surface) 100%)}.rs-content .card-error{border-left:4px solid var(--error);background:linear-gradient(135deg,rgba(239,68,68,.06) 0%,var(--surface) 100%)}.rs-content .card-purple{border-left:4px solid var(--purple);background:linear-gradient(135deg,rgba(139,92,246,.06) 0%,var(--surface) 100%)}.rs-content .card-title{font-size:1.05em;font-weight:700;color:var(--accent);margin-bottom:8px}.rs-content .info-box,.rs-content .warning-box,.rs-content .tip-box,.rs-content .error-box,.rs-content .success-box{border-radius:var(--radius-lg);padding:14px 18px;margin:12px 0;font-size:14.5px;line-height:1.7;animation:rsSlideUp .4s ease both;box-shadow:var(--shadow)}.rs-content .info-box{background:linear-gradient(135deg,var(--accent-light) 0%,var(--surface) 100%);border-left:4px solid var(--accent)}.rs-content .warning-box{background:linear-gradient(135deg,rgba(245,158,11,.06) 0%,var(--surface) 100%);border-left:4px solid var(--warning)}.rs-content .tip-box{background:linear-gradient(135deg,rgba(16,185,129,.06) 0%,var(--surface) 100%);border-left:4px solid var(--success)}.rs-content .error-box{background:linear-gradient(135deg,rgba(239,68,68,.06) 0%,var(--surface) 100%);border-left:4px solid var(--error)}.rs-content .success-box{background:linear-gradient(135deg,rgba(16,185,129,.06) 0%,var(--surface) 100%);border-left:4px solid var(--success)}.rs-content .formula-box{background:var(--surface);border:2px solid var(--accent);border-radius:var(--radius-lg);padding:18px 20px;margin:14px 0;text-align:center;overflow-x:auto;box-shadow:var(--shadow)}.rs-content .formula-box .katex-display{margin:0;padding:0}.rs-content .formula-box .katex{font-size:1.15em}.rs-content .steps{margin:12px 0}.rs-content .step{display:flex;gap:12px;align-items:flex-start;margin:8px 0;padding:12px 14px;background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow);animation:rsSlideUp .45s ease both}.rs-content .step:hover{transform:translate(3px)}.rs-content .step-num{min-width:30px;height:30px;background:linear-gradient(135deg,var(--accent),#0277bd);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px;flex-shrink:0;box-shadow:0 2px 8px #0288d14d}.rs-content .step-content{flex:1;padding-top:2px}.rs-content .table-wrapper{overflow-x:auto;margin:12px 0;border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow)}.rs-content table{width:100%;border-collapse:collapse;font-size:14px}.rs-content thead th{background:var(--accent);color:#fff;padding:10px 14px;text-align:left;font-weight:600;font-size:13px}.rs-content thead th:first-child{border-radius:var(--radius-lg) 0 0 0}.rs-content thead th:last-child{border-radius:0 var(--radius-lg) 0 0}.rs-content tbody td{padding:9px 14px;border-bottom:1px solid var(--border);font-size:13.5px}.rs-content tbody tr:nth-child(2n){background:var(--surface)}.rs-content tbody tr:last-child td{border-bottom:none}.rs-content .timeline{position:relative;padding:0 0 0 24px;margin:14px 0}.rs-content .timeline:before{content:"";position:absolute;left:7px;top:4px;bottom:4px;width:2px;background:var(--accent-light);border-radius:2px}.rs-content .timeline-item{position:relative;padding:10px 14px;margin:10px 0;background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow)}.rs-content .timeline-item:before{content:"";position:absolute;left:-19px;top:16px;width:10px;height:10px;border-radius:50%;background:var(--accent);border:2px solid var(--bg)}.rs-content .timeline-date{font-size:11px;color:var(--accent);font-weight:600;text-transform:uppercase;letter-spacing:.4px}.rs-content .timeline-title{font-weight:600;margin-bottom:4px}.rs-content .compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:14px 0}.rs-content .compare-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:14px}.rs-content .compare-header{font-weight:600;color:var(--accent);font-size:12px;text-transform:uppercase;letter-spacing:.4px;padding-bottom:8px;border-bottom:1px solid var(--border);margin-bottom:8px}.rs-content .stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(90px,1fr));gap:10px;margin:14px 0}.rs-content .stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:12px 10px;text-align:center;transition:transform .15s}.rs-content .stat-card:hover{transform:scale(1.03)}.rs-content .stat-value{font-size:1.6em;font-weight:800;color:var(--accent);line-height:1.2}.rs-content .stat-label{font-size:11px;color:var(--text-muted);margin-top:4px;font-weight:500}.rs-content .badge{display:inline-block;padding:2px 10px;border-radius:100px;font-size:11px;font-weight:700;margin:2px}.rs-content .badge-blue{background:var(--accent-light);color:var(--accent)}.rs-content .badge-green{background:#4caf5026;color:var(--success)}.rs-content .badge-orange{background:#ff980026;color:var(--warning)}.rs-content .badge-red{background:#ef535026;color:var(--error)}.rs-content .badge-purple{background:#7c4dff26;color:var(--purple)}.rs-content .tabs{margin:14px 0;border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}.rs-content .tab-nav{display:flex;background:var(--surface);overflow-x:auto;scrollbar-width:none;border-bottom:1px solid var(--border)}.rs-content .tab-nav::-webkit-scrollbar{display:none}.rs-content .tab-btn{padding:10px 16px;border:none;background:transparent;color:var(--text-muted);font-family:var(--font);font-size:13px;font-weight:600;cursor:pointer;white-space:nowrap;border-bottom:2px solid transparent;transition:all .2s}.rs-content .tab-btn.active{color:var(--accent);border-bottom-color:var(--accent);background:var(--accent-light)}.rs-content .tab-content{display:none;padding:16px 18px;background:var(--bg);animation:rsFadeIn .3s ease}.rs-content .tab-content.active{display:block}.rs-content .accordion{margin:14px 0;border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}.rs-content .acc-item{border-bottom:1px solid var(--border)}.rs-content .acc-item:last-child{border-bottom:none}.rs-content .acc-header{padding:14px 18px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-family:var(--font);font-weight:600;background:var(--surface);font-size:14px;transition:background .15s;color:var(--text)}.rs-content .acc-header:hover{background:var(--accent-light)}.rs-content .acc-arrow{transition:transform .2s;color:var(--accent);font-size:12px}.rs-content .acc-header.open .acc-arrow{transform:rotate(180deg)}.rs-content .acc-body{display:none;padding:16px 18px;background:var(--bg);animation:rsFadeIn .25s ease;line-height:1.7}.rs-content .acc-body.open{display:block}.rs-content .flashcard-set{margin:14px 0}.rs-content .flashcard{perspective:700px;margin:10px 0;cursor:pointer;height:130px;animation:rsScaleIn .4s ease both}.rs-content .flashcard-inner{position:relative;width:100%;height:100%;transition:transform .5s cubic-bezier(.4,0,.2,1);transform-style:preserve-3d}.rs-content .flashcard.flipped .flashcard-inner{transform:rotateY(180deg)}.rs-content .flashcard-front,.rs-content .flashcard-back{position:absolute;width:100%;height:100%;backface-visibility:hidden;border-radius:var(--radius-lg);display:table;padding:18px;border:1px solid var(--border);font-family:var(--font)}.rs-content .flashcard-front{background:var(--surface);font-weight:600;box-shadow:var(--shadow);color:var(--text)}.rs-content .flashcard-back{background:linear-gradient(135deg,var(--accent-light) 0%,var(--surface) 100%);color:var(--accent);border-color:var(--accent);transform:rotateY(180deg)}.rs-content .flashcard-front .fc-text,.rs-content .flashcard-back .fc-text{display:table-cell;vertical-align:middle;text-align:center;font-size:14px}.rs-content .mcq{margin:14px 0;animation:rsSlideUp .4s ease both}.rs-content .mcq-question{font-weight:700;margin-bottom:12px;font-size:14px;line-height:1.6;color:var(--text)}.rs-content .mcq-option{padding:12px 16px;margin:6px 0;border-radius:var(--radius);border:1.5px solid var(--border);cursor:pointer;transition:all .2s;font-size:13.5px;display:flex;gap:10px;align-items:flex-start;font-family:var(--font);background:var(--surface);color:var(--text)}.rs-content .mcq-option:hover{border-color:var(--accent);background:var(--accent-light);transform:translate(3px)}.rs-content .mcq-option.correct{border-color:var(--success);background:linear-gradient(135deg,rgba(16,185,129,.1) 0%,var(--surface) 100%);font-weight:600}.rs-content .mcq-option.wrong{border-color:var(--error);background:linear-gradient(135deg,rgba(239,68,68,.06) 0%,var(--surface) 100%)}.rs-content .mcq-explanation{margin-top:10px;padding:12px 16px;background:var(--surface);border-radius:var(--radius);font-size:13.5px;display:none;border-left:4px solid var(--success);animation:rsFadeIn .3s ease;box-shadow:var(--shadow)}.rs-content .code-wrapper{margin:14px 0;border-radius:var(--radius-lg);overflow:hidden;box-shadow:0 2px 8px #00000026}.rs-content .code-header{background:#1a1a2e;color:#9e9e9e;padding:8px 14px;display:flex;justify-content:space-between;align-items:center;font-size:11px}.rs-content .code-lang{color:#81d4fa;font-weight:600}.rs-content .copy-btn{background:#ffffff14;border:1px solid rgba(255,255,255,.15);color:#ccc;padding:3px 12px;border-radius:4px;font-size:11px;cursor:pointer;font-family:var(--font)}.rs-content .copy-btn:hover{background:#ffffff2e;color:#fff}.rs-content .code-wrapper pre{margin:0;border-radius:0!important;font-size:13px}.rs-content pre code{font-family:var(--font-mono)!important}.rs-content .mermaid{display:none}.rs-content .mermaid-wrapper{margin:14px 0;background:var(--surface);border-radius:var(--radius-lg);padding:14px 12px;border:1px solid var(--border);overflow-x:auto;text-align:center;min-height:80px;position:relative;animation:rsScaleIn .4s ease both}.rs-content .mermaid-wrapper svg{max-width:100%;height:auto}.rs-content .mermaid-error{background:#ef535014;border:1px solid var(--error);border-radius:8px;padding:10px 14px;color:var(--error);font-size:13px;text-align:center}.rs-content .katex-display{overflow-x:auto;margin:12px 0;padding:4px 0;text-align:center}.rs-content .katex{font-size:1.05em}.rs-content .rs-markdown{padding:2px 0}.rs-content .rs-markdown h2{font-size:1.25em;font-weight:700;margin:28px 0 10px;padding:10px 0 8px 14px;border-left:5px solid var(--accent);border-radius:0 6px 6px 0;color:var(--heading);background:linear-gradient(to right,var(--accent-light),transparent 80%)}.rs-content .rs-markdown h3{font-size:1.1em;font-weight:600;margin:22px 0 8px;padding:8px 0 6px 12px;border-left:3px solid var(--accent-light);border-radius:0 4px 4px 0;color:var(--heading);background:linear-gradient(to right,rgba(2,136,209,.04),transparent 60%)}.rs-content .rs-markdown p{margin:8px 0;line-height:1.75}.rs-content .rs-markdown strong{color:var(--heading);font-weight:700}.rs-content .rs-markdown ul{padding-left:22px;list-style-type:none}.rs-content .rs-markdown ul>li{position:relative;padding-left:10px;margin:4px 0}.rs-content .rs-markdown ul>li:before{content:"•";color:var(--accent);font-weight:700;position:absolute;left:-14px;font-size:1.2em}.rs-content .rs-markdown ol{padding-left:26px}.rs-content .rs-markdown ol>li{margin:4px 0}.rs-content .rs-markdown blockquote{border-left:4px solid var(--accent);padding:12px 16px;margin:12px 0;background:var(--accent-light);border-radius:0 8px 8px 0;font-style:italic;font-size:14.5px}.rs-content .rs-markdown hr{border:none;height:1px;background:var(--border);margin:24px 0}.rs-content .rs-markdown code:not(pre code){background:#fce4ec;color:#c62828;border:1px solid #f8bbd0;border-radius:4px;padding:1px 6px;font-size:.88em;font-family:var(--font-mono)}.rs-content .rs-markdown img{max-width:100%;border-radius:8px;margin:12px 0}.rs-content .rs-markdown table{font-size:14px;border-collapse:collapse;width:100%}.rs-content .rs-markdown table thead th{background:var(--accent);color:#fff;padding:10px 14px;text-align:left;font-weight:600;font-size:13px}.rs-content .rs-markdown table tbody td{padding:9px 14px;border-bottom:1px solid var(--border);font-size:13.5px}.rs-content .rs-markdown table tbody tr:nth-child(2n){background:var(--surface)}.rs-content .rs-markdown table tbody tr:last-child td{border-bottom:none}.rs-content .rs-markdown .katex-display{margin:12px 0;padding:4px 0;overflow-x:auto;text-align:center}.rs-content .rs-markdown .katex{font-size:1.05em}