@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}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--header-h) + 16px)}body{margin:0;font-family:var(--font-family);font-size:var(--font-md);line-height:1.55;color:var(--color-text);background:var(--color-background);-webkit-font-smoothing:antialiased;word-spacing:.06em;overflow-x:hidden}body.no-scroll{overflow:hidden}h1,h2,h3,h4{line-height:1.2;margin:0 0 var(--space-md)}h1{font-size:var(--font-xxl);font-weight:700}h2{font-size:var(--font-lg);font-weight:700}h3{font-size:var(--font-md);font-weight:700}p{margin:0 0 var(--space-md)}a{color:var(--color-primary);text-underline-offset:3px;transition:color .15s ease-out}a:hover{color:var(--color-primary-dark)}img,svg{max-width:100%}.icon{flex:none;display:inline-block;vertical-align:middle}:focus-visible{outline:3px solid var(--color-primary);outline-offset:2px;border-radius:6px}button,[role=button],summary,label.btn,select{cursor:pointer}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:absolute;left:-999px;top:8px;background:var(--color-surface);color:var(--color-primary);padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);box-shadow:var(--shadow-raised);z-index:100}.skip-link:focus{left:var(--space-sm)}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}.app-header{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:var(--space-sm);height:var(--header-h);padding:0 var(--space-md);background:var(--color-surface);border-bottom:1px solid var(--color-border)}.app-header .spacer{flex:1;min-width:0}.brand{display:inline-flex;align-items:center;gap:10px;min-height:var(--touch);font-weight:800;font-size:var(--font-lg);letter-spacing:.06em;color:var(--color-text);text-decoration:none;flex:none}.brand:hover{color:var(--color-primary)}.brand-name{display:none}@media(min-width:420px){.brand-name{display:inline}}.icon-btn{display:inline-flex;align-items:center;justify-content:center;position:relative;width:var(--touch);height:var(--touch);flex:none;border:0;border-radius:var(--radius-md);background:transparent;color:var(--color-text-muted);transition:background-color .15s ease-out,color .15s ease-out}.icon-btn:hover{background:var(--color-primary-soft);color:var(--color-primary)}.bell-count{position:absolute;top:6px;right:4px;min-width:20px;height:20px;padding:0 5px;border-radius:var(--radius-pill);background:var(--color-danger);color:#fff;font-size:12px;font-weight:700;line-height:20px;text-align:center;border:2px solid var(--color-surface);font-variant-numeric:tabular-nums}.crumbs{display:none;min-width:0;margin-left:var(--space-md);padding-left:var(--space-md);border-left:1px solid var(--color-border)}.crumbs ol{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0;font-size:var(--font-sm);color:var(--color-text-muted);white-space:nowrap;overflow:hidden}.crumbs li+li:before{content:"›";margin-right:6px;color:var(--color-text-muted)}.crumbs li:last-child{color:var(--color-text);font-weight:600;overflow:hidden;text-overflow:ellipsis}.crumbs a{color:var(--color-text-muted);text-decoration:none}.crumbs a:hover{color:var(--color-primary);text-decoration:underline}.header-search{display:none;align-items:center;gap:var(--space-sm);height:44px;width:min(320px,30vw);padding:0 var(--space-md);border:1px solid var(--color-border);border-radius:var(--radius-pill);background:var(--color-background);color:var(--color-text-muted);transition:border-color .15s ease-out}.header-search:focus-within{border-color:var(--color-primary)}.header-search input[type=search]{border:0;background:transparent;min-height:0;height:40px;padding:0;font-size:var(--font-sm);outline:none}.offline-pill{display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 10px;border-radius:var(--radius-pill);background:var(--color-warning-soft);color:var(--color-warning);font-size:var(--font-xs);font-weight:700}.offline-text{display:none}.plan-badge{display:inline-flex;align-items:center;height:28px;padding:0 10px;border-radius:var(--radius-pill);font-size:var(--font-xs);font-weight:700;white-space:nowrap;flex:none;background:var(--plan-free-bg);color:var(--plan-free-fg)}.plan-badge.plan-plus{background:var(--plan-plus-bg);color:var(--plan-plus-fg)}.plan-badge.plan-premium{background:var(--plan-premium-bg);color:var(--plan-premium-fg)}.plan-badge.plan-vip{background:var(--plan-vip-bg);color:var(--plan-vip-fg)}.plan-badge.role-badge{background:var(--color-primary-soft);color:var(--color-primary)}.account{position:relative;flex:none}.account-btn{display:inline-flex;align-items:center;gap:var(--space-sm);min-height:var(--touch);min-width:var(--touch);padding:0 4px;border:0;border-radius:var(--radius-pill);background:transparent;color:var(--color-text);font:inherit;font-weight:600;transition:background-color .15s ease-out}.account-btn:hover{background:var(--color-primary-soft)}.account-btn>.icon,.account-name{display:none}.avatar{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:50%;background:var(--color-primary);color:var(--color-on-primary);font-weight:700;font-size:var(--font-sm);margin:0 auto}.account-pop{position:absolute;right:0;top:calc(100% + 8px);z-index:20;width:260px;padding:var(--space-sm);border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:var(--shadow-raised)}.account-who{display:flex;flex-direction:column;padding:var(--space-sm) var(--space-md) var(--space-md);border-bottom:1px solid var(--color-border);margin-bottom:var(--space-xs)}.account-pop ul{list-style:none;margin:0;padding:0}.account-pop a,.account-pop button{display:flex;align-items:center;gap:var(--space-md);width:100%;min-height:var(--touch);padding:0 var(--space-md);border:0;border-radius:var(--radius-md);background:transparent;color:var(--color-text);font:inherit;text-decoration:none;text-align:left}.account-pop a:hover,.account-pop button:hover{background:var(--color-primary-soft);color:var(--color-primary)}.account-pop li:last-child button{color:var(--color-danger)}.sidebar-toggle,.header-search{display:none}@media(min-width:768px){.crumbs{display:block}.header-search{display:flex}.search-mobile{display:none}.offline-text{display:inline}.account-btn{padding:0 var(--space-sm) 0 4px}.account-btn>.icon,.account-name{display:inline}.app-header{padding:0 var(--space-lg)}}@media(min-width:1024px){.sidebar-toggle{display:inline-flex}}.layout{display:block}.app-sidebar{display:none}.side-nav ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}.side-nav a{position:relative;display:flex;align-items:center;gap:var(--space-md);min-height:var(--touch);padding:0 var(--space-md);border-radius:var(--radius-md);color:var(--color-text-muted);font-size:var(--font-sm);font-weight:500;text-decoration:none;transition:background-color .15s ease-out,color .15s ease-out}.side-nav a:hover{background:var(--color-primary-soft);color:var(--color-text)}.side-nav a.active{background:var(--color-primary-soft);color:var(--color-primary);font-weight:700}.side-nav a.active:before{content:"";position:absolute;left:-12px;top:10px;bottom:10px;width:4px;border-radius:0 4px 4px 0;background:var(--color-primary)}.nav-label{flex:1;min-width:0;line-height:1.25;padding:4px 0}.nav-group+.nav-group{margin-top:var(--space-md)}.nav-section{font-size:12px;text-transform:uppercase;letter-spacing:.08em;font-weight:700;color:var(--color-text-muted);padding:var(--space-sm) var(--space-md) var(--space-xs)}.nav-lock{display:inline-flex;margin-left:auto;color:var(--color-locked)}main.content{min-width:0;padding:var(--space-lg) var(--space-md) calc(var(--bottom-nav-h) + 32px + env(safe-area-inset-bottom))}main.content:focus{outline:none}.content-inner{max-width:var(--max-w);margin:0 auto}.bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:10;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));height:calc(var(--bottom-nav-h) + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--color-surface);border-top:1px solid var(--color-border);box-shadow:0 -4px 16px #1e1b4b0f}.bottom-nav a,.bottom-nav button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-width:0;border:0;background:transparent;color:var(--color-text-muted);font:inherit;font-size:12px;font-weight:600;text-decoration:none;transition:color .15s ease-out}.bottom-nav span{max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding:0 2px}.bottom-nav a.active{color:var(--color-primary)}.bottom-nav a.active .icon{background:var(--color-primary-soft);border-radius:var(--radius-pill);padding:2px 14px;width:52px;height:28px}.drawer-backdrop{position:fixed;inset:0;z-index:30;background:#0f102080;display:flex;align-items:flex-end;animation:fade-in .2s ease-out}.drawer{width:100%;max-height:85vh;overflow-y:auto;background:var(--color-surface);border-radius:20px 20px 0 0;padding:var(--space-md) var(--space-md) calc(var(--space-xl) + env(safe-area-inset-bottom));animation:slide-up .22s ease-out}.drawer-head{padding:0 var(--space-xs) var(--space-sm)}.drawer .side-nav a.active:before{display:none}@keyframes fade-in{0%{opacity:0}}@keyframes slide-up{0%{transform:translateY(24px);opacity:0}}@media(min-width:768px){.bottom-nav{display:none}.layout{display:grid;grid-template-columns:var(--sidebar-w-collapsed) minmax(0,1fr);min-height:calc(100vh - var(--header-h))}.app-sidebar{display:block;position:sticky;top:var(--header-h);height:calc(100vh - var(--header-h));overflow-y:auto;overflow-x:hidden;background:var(--color-surface);border-right:1px solid var(--color-border);padding:var(--space-md) 12px}main.content{padding:var(--space-xl)}.drawer-backdrop{align-items:stretch}.drawer{max-width:360px;max-height:none;border-radius:0 20px 20px 0}}@media(min-width:768px)and (max-width:1023px){.app-sidebar .nav-label,.app-sidebar .nav-section,.app-sidebar .nav-lock{display:none}.app-sidebar .side-nav a{justify-content:center;padding:0}.app-sidebar .nav-group+.nav-group{border-top:1px solid var(--color-border);padding-top:var(--space-md)}}@media(min-width:1024px){.layout{grid-template-columns:var(--sidebar-w) minmax(0,1fr)}.shell.collapsed .layout{grid-template-columns:var(--sidebar-w-collapsed) minmax(0,1fr)}.shell.collapsed .app-sidebar .nav-label,.shell.collapsed .app-sidebar .nav-section,.shell.collapsed .app-sidebar .nav-lock{display:none}.shell.collapsed .app-sidebar .side-nav a{justify-content:center;padding:0}.shell.collapsed .app-sidebar .nav-group+.nav-group{border-top:1px solid var(--color-border);padding-top:var(--space-md)}main.content{padding:var(--space-xxl)}}.public-header{padding:0 var(--space-md)}.public-header .btn.small{min-height:44px}.public-main{max-width:var(--max-w);margin:0 auto;padding:var(--space-lg) var(--space-md) var(--space-xxl);min-height:calc(100vh - var(--header-h) - 160px)}@media(min-width:768px){.public-header{padding:0 var(--space-xl)}.public-main{padding:var(--space-xl) var(--space-xl) var(--space-xxxl)}}.footer{border-top:1px solid var(--color-border);background:var(--color-surface);padding:var(--space-xl) var(--space-md);color:var(--color-text-muted);font-size:var(--font-sm)}.footer-inner{max-width:var(--max-w);margin:0 auto}.footer-inner .brand{margin-bottom:var(--space-sm)}.footer p{margin:0 0 var(--space-sm)}.footer a{color:var(--color-text-muted)}.footer a:hover{color:var(--color-primary)}.stack{display:flex;flex-direction:column;gap:var(--space-md)}.stack-lg{display:flex;flex-direction:column;gap:var(--space-xl)}.row{display:flex;flex-wrap:wrap;gap:var(--space-sm);align-items:center}.row-between{display:flex;flex-wrap:wrap;gap:var(--space-sm);align-items:center;justify-content:space-between}.grid{display:grid;gap:var(--space-md);grid-template-columns:minmax(0,1fr)}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}@media(max-width:599px){.grid.filters{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(min-width:600px){.grid-2,.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(min-width:1024px){.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.grid{gap:var(--space-lg)}}.dash-grid{display:grid;align-items:start;gap:var(--space-lg);grid-template-columns:minmax(0,1fr)}@media(min-width:1024px){.dash-grid{grid-template-columns:minmax(0,2fr) minmax(0,1fr)}.dash-grid.even{grid-template-columns:repeat(2,minmax(0,1fr))}}.muted{color:var(--color-text-muted)}.small{font-size:var(--font-sm)}.center{text-align:center}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-lg);box-shadow:var(--shadow-card);min-width:0}@media(min-width:768px){.card{padding:var(--space-xl)}}.card h2,.card h3{margin-bottom:var(--space-sm)}.card>:last-child{margin-bottom:0}.card-link{display:block;text-decoration:none;color:inherit;cursor:pointer;transition:border-color .2s ease-out,box-shadow .2s ease-out}.card-link:hover{color:inherit;border-color:var(--color-primary);box-shadow:var(--shadow-raised)}.card.soft{background:var(--color-primary-soft);border-color:transparent;box-shadow:none}.card.accent{background:var(--color-accent-soft);border-color:transparent;box-shadow:none}.card.blue{background:var(--color-blue-soft);border-color:transparent;box-shadow:none}.panel{display:flex;flex-direction:column;gap:var(--space-md)}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:var(--space-sm);flex-wrap:wrap}.panel-head h2{display:flex;align-items:center;gap:var(--space-sm);margin:0;font-size:var(--font-lg)}.panel-head h2 .icon{color:var(--color-primary)}.panel-head a{font-size:var(--font-sm);font-weight:600;display:inline-flex;align-items:center;gap:4px;min-height:40px}.page-head{margin-bottom:var(--space-xl)}.stack-lg>.page-head,.stack>.page-head{margin-bottom:0}.page-head h1{margin:0;overflow-wrap:anywhere}.page-head p{color:var(--color-text-muted);margin:var(--space-xs) 0 0;max-width:72ch}.page-head-row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:var(--space-md)}.page-head-text{min-width:0;flex:1 1 280px}.page-actions{display:flex;flex-wrap:wrap;gap:var(--space-sm)}@media(min-width:768px){.page-head h1{font-size:var(--font-xxxl)}}.back-link{display:inline-flex;align-items:center;gap:4px;min-height:40px;margin-bottom:var(--space-xs);font-weight:600;font-size:var(--font-sm);text-decoration:none}.back-link:hover{text-decoration:underline}.eyebrow{font-size:var(--font-xs);font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--color-primary);margin-bottom:var(--space-xs)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);min-height:var(--touch);padding:0 var(--space-lg);border-radius:var(--radius-md);border:2px solid var(--color-primary);background:var(--color-primary);color:var(--color-on-primary);font:inherit;font-weight:700;line-height:1.2;text-decoration:none;text-align:center;cursor:pointer;transition:background-color .15s ease-out,border-color .15s ease-out,color .15s ease-out,box-shadow .15s ease-out}.btn:hover{background:var(--color-primary-dark);border-color:var(--color-primary-dark);color:var(--color-on-primary)}.btn:disabled,.btn[aria-disabled=true]{opacity:.55;cursor:not-allowed}.btn.secondary{background:var(--color-surface);color:var(--color-primary);border-color:var(--color-border)}.btn.secondary:hover{background:var(--color-primary-soft);border-color:var(--color-primary)}.btn.ghost{background:transparent;border-color:transparent;color:var(--color-primary)}.btn.ghost:hover{background:var(--color-primary-soft)}.btn.accent{background:var(--color-accent);border-color:var(--color-accent);color:var(--color-on-accent)}.btn.accent:hover{background:#e0a800;border-color:#e0a800;color:var(--color-on-accent)}.btn.cta{background:var(--color-cta);border-color:var(--color-cta);color:var(--color-on-primary)}.btn.cta:hover{background:var(--color-cta-dark);border-color:var(--color-cta-dark);color:var(--color-on-primary)}.btn.danger{background:var(--color-danger);border-color:var(--color-danger);color:var(--color-on-primary)}.btn.danger:hover{filter:brightness(.92)}.btn.small{min-height:40px;padding:0 var(--space-md);font-size:var(--font-sm)}.btn.block{width:100%}.btn.lg{min-height:56px;padding:0 var(--space-xl);font-size:var(--font-lg)}.field{display:flex;flex-direction:column;gap:6px;min-width:0}.field>span:first-child,.field-label{font-weight:600;font-size:var(--font-sm)}.field .hint{font-size:var(--font-sm);color:var(--color-text-muted)}.field .field-error{font-size:var(--font-sm);color:var(--color-danger);font-weight:600}input[type=text],input[type=tel],input[type=password],input[type=number],input[type=date],input[type=datetime-local],input[type=search],input[type=url],input[type=email],input:not([type]),select,textarea{width:100%;min-height:var(--touch);padding:var(--space-sm) var(--space-md);border:1.5px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface);color:var(--color-text);font:inherit;transition:border-color .15s ease-out,box-shadow .15s ease-out}input::placeholder,textarea::placeholder{color:var(--color-text-muted);opacity:.8}textarea{min-height:110px;resize:vertical}textarea.code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:var(--font-sm)}input:hover,select:hover,textarea:hover{border-color:var(--color-text-muted)}input:focus,select:focus,textarea:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-soft)}input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--color-primary);outline-offset:1px}input[aria-invalid=true],input:user-invalid{border-color:var(--color-danger)}.check{display:flex;align-items:center;gap:var(--space-sm);min-height:var(--touch);cursor:pointer}.check input{width:22px;height:22px;accent-color:var(--color-primary);flex:none}.option-list{display:flex;flex-direction:column;gap:var(--space-sm)}.option{display:flex;align-items:center;gap:var(--space-md);min-height:var(--touch);padding:var(--space-sm) var(--space-md);border:1.5px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);cursor:pointer;transition:border-color .15s ease-out,background-color .15s ease-out}.option:hover{border-color:var(--color-primary)}.option:has(input:checked){border-color:var(--color-primary);background:var(--color-primary-soft);font-weight:600}.option input{width:22px;height:22px;accent-color:var(--color-primary);flex:none}fieldset{border:0;padding:0;margin:0;min-width:0}legend{font-weight:600;margin-bottom:var(--space-sm)}.badge{display:inline-flex;align-items:center;gap:4px;padding:2px 10px;border-radius:var(--radius-pill);font-size:var(--font-xs);font-weight:700;line-height:1.6;background:var(--color-blue-soft);color:var(--color-blue);white-space:nowrap}.badge.green{background:var(--color-success-soft);color:var(--color-success)}.badge.yellow{background:var(--color-warning-soft);color:var(--color-warning)}.badge.red{background:var(--color-danger-soft);color:var(--color-danger)}.badge.gray{background:var(--color-surface-alt);color:var(--color-text-muted);border:1px solid var(--color-border)}.badge.demo{background:var(--color-accent-soft);color:var(--color-warning);border:1px dashed var(--color-warning);text-transform:uppercase;letter-spacing:.04em}.alert{display:flex;align-items:flex-start;gap:var(--space-md);border-radius:var(--radius-md);padding:var(--space-md) var(--space-lg);border:1px solid transparent;border-left:4px solid var(--color-blue);background:var(--color-blue-soft);color:var(--color-text);margin:0}.alert>.icon{margin-top:2px;color:var(--color-blue)}.alert-body{flex:1;min-width:0}.alert.error{border-left-color:var(--color-danger);background:var(--color-danger-soft)}.alert.error>.icon{color:var(--color-danger)}.alert.warn{border-left-color:var(--color-warning);background:var(--color-warning-soft)}.alert.warn>.icon{color:var(--color-warning)}.alert.success{border-left-color:var(--color-success);background:var(--color-success-soft)}.alert.success>.icon{color:var(--color-success)}.alert p:last-child,.alert-body>:last-child{margin-bottom:0}.alert .btn{margin-top:var(--space-sm)}.offline-banner{position:sticky;top:var(--header-h);z-index:9;display:flex;align-items:center;justify-content:center;gap:var(--space-sm);background:var(--color-warning-soft);color:var(--color-warning);border-bottom:1px solid var(--color-border);padding:var(--space-sm) var(--space-lg);font-size:var(--font-sm);font-weight:600;text-align:center}.lock-card{display:flex;gap:var(--space-md);align-items:flex-start;border:1.5px dashed var(--color-locked);border-radius:var(--radius-lg);padding:var(--space-lg);background:linear-gradient(135deg,var(--color-surface) 60%,var(--color-accent-soft))}.lock-badge{display:inline-grid;place-items:center;width:44px;height:44px;flex:none;border-radius:12px;background:var(--color-accent-soft);color:var(--color-warning)}.lock-body{display:flex;flex-direction:column;align-items:flex-start;gap:var(--space-sm);min-width:0}.lock-body p{margin:0}.lock-card .lock-title{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-sm);font-weight:700}.lock-card.compact{padding:var(--space-md)}.spinner{display:inline-block;width:28px;height:28px;border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading{display:flex;align-items:center;justify-content:center;gap:var(--space-md);padding:var(--space-xl) 0;color:var(--color-text-muted)}.skeleton{display:block;height:18px;border-radius:8px;background:linear-gradient(90deg,var(--color-border) 0%,var(--color-surface-alt) 50%,var(--color-border) 100%);background-size:200% 100%;animation:shimmer 1.4s ease-in-out infinite}@keyframes shimmer{0%{background-position:100% 0}to{background-position:-100% 0}}.page-skeleton,.block-skeleton{display:flex;flex-direction:column;gap:var(--space-md)}.page-skeleton .card{display:flex;flex-direction:column;gap:var(--space-sm)}.empty{display:flex;flex-direction:column;align-items:center;gap:var(--space-sm);text-align:center;padding:var(--space-xl) var(--space-lg);box-shadow:none;border-style:dashed}.empty p{margin:0;max-width:48ch}.empty-icon{display:inline-grid;place-items:center;width:56px;height:56px;border-radius:50%;background:var(--color-primary-soft);color:var(--color-primary)}.table-wrap{overflow-x:auto;border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:var(--shadow-card)}table.table{width:100%;border-collapse:collapse;font-size:var(--font-sm)}.table th,.table td{padding:12px var(--space-md);border-bottom:1px solid var(--color-border);text-align:left;vertical-align:middle}.table th{background:var(--color-surface-alt);font-weight:700;font-size:var(--font-xs);text-transform:uppercase;letter-spacing:.04em;color:var(--color-text-muted);white-space:nowrap}.table tbody tr{transition:background-color .15s ease-out}.table tbody tr:hover{background:var(--color-surface-alt)}.table tr:last-child td{border-bottom:0}.num{text-align:right;font-variant-numeric:tabular-nums}.table th.num,.table td.num{text-align:right}@media(max-width:767px){.table-wrap{overflow:visible;border:0;background:transparent;box-shadow:none}.table-wrap table.table thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.table-wrap table.table,.table-wrap table.table tbody,.table-wrap table.table tr,.table-wrap table.table td{display:block;width:100%}.table-wrap table.table tr{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-sm) var(--space-md);margin-bottom:var(--space-sm);box-shadow:var(--shadow-card)}.table-wrap table.table td{display:block;padding:8px 0;border-bottom:1px dashed var(--color-border);text-align:right;overflow-wrap:anywhere}.table-wrap table.table td:after{content:"";display:table;clear:both}.table-wrap table.table td:last-child{border-bottom:0}.table-wrap table.table td[data-label]:before{content:attr(data-label);float:left;max-width:45%;margin-right:var(--space-md);text-align:left;font-weight:600;color:var(--color-text-muted)}.table-wrap table.table td:first-child{text-align:left;font-weight:700;font-size:var(--font-md)}.table-wrap table.table td:first-child:before{display:none}.table-wrap table.table td:empty{display:none}}.tabs{display:flex;gap:var(--space-xs);overflow-x:auto;padding:4px;background:var(--color-surface-alt);border:1px solid var(--color-border);border-radius:var(--radius-md);margin-bottom:var(--space-lg);scrollbar-width:none}.tabs button{flex:none;min-height:40px;padding:0 var(--space-lg);border:0;border-radius:9px;background:transparent;font:inherit;font-size:var(--font-sm);font-weight:600;color:var(--color-text-muted);cursor:pointer;white-space:nowrap;transition:background-color .15s ease-out,color .15s ease-out}.tabs button:hover{color:var(--color-text)}.tabs button[aria-selected=true]{background:var(--color-surface);color:var(--color-primary);box-shadow:var(--shadow-card)}.progress{height:10px;border-radius:var(--radius-pill);background:var(--color-primary-soft);overflow:hidden}.progress>span{display:block;height:100%;border-radius:var(--radius-pill);background:var(--color-primary);transition:width .25s ease-out}.stat{display:flex;flex-direction:column;gap:2px}.stat strong{font-size:var(--font-xxl);line-height:1.15;font-variant-numeric:tabular-nums}.stat span{color:var(--color-text-muted);font-size:var(--font-sm)}.stat-icon{color:var(--color-primary)}.list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:var(--space-sm)}.list-item{display:flex;align-items:center;gap:var(--space-md);justify-content:space-between;flex-wrap:wrap;padding:12px var(--space-md);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);min-height:var(--touch);min-width:0;overflow-wrap:anywhere}.list-item>:first-child{min-width:0;flex:1 1 200px}a.list-item{color:inherit;text-decoration:none;cursor:pointer;transition:border-color .15s ease-out,box-shadow .15s ease-out}a.list-item:hover{border-color:var(--color-primary);box-shadow:var(--shadow-card)}.list-item.locked{border-style:dashed;background:var(--color-surface-alt)}.statement{background:var(--color-surface);border:1px solid var(--color-border);border-left:5px solid var(--color-accent);border-radius:var(--radius-md);padding:var(--space-md) var(--space-lg)}.math-text{overflow-wrap:anywhere}.math-text .katex-display{overflow-x:auto;overflow-y:hidden;padding:4px 0}.math-text p:last-child{margin-bottom:0}.math-text img{border-radius:var(--radius-md)}.reader{max-width:72ch;margin-left:auto;margin-right:auto;width:100%}.reader .math-text{font-size:var(--font-lg);line-height:1.65}.dialog-backdrop{position:fixed;inset:0;background:#0f10208c;display:flex;align-items:flex-end;justify-content:center;z-index:50;padding:var(--space-md);animation:fade-in .2s ease-out}.dialog{background:var(--color-surface);border-radius:var(--radius-lg);padding:var(--space-lg);width:100%;max-width:520px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-raised);animation:slide-up .22s ease-out}.dialog h2{margin:0}@media(min-width:600px){.dialog-backdrop{align-items:center}}.chat{display:flex;flex-direction:column;gap:var(--space-md);padding:var(--space-sm) 0}.bubble{position:relative;max-width:min(92%,680px);padding:12px var(--space-lg);border-radius:18px;background:var(--color-surface);border:1px solid var(--color-border);overflow-wrap:anywhere}.bubble.student{align-self:flex-end;background:var(--color-primary);color:var(--color-on-primary);border-color:transparent;border-bottom-right-radius:6px}.bubble.student .who{color:inherit;opacity:.85}.bubble.student .katex{color:inherit}.bubble.tutor{align-self:flex-start;background:var(--color-surface);border-bottom-left-radius:6px;box-shadow:var(--shadow-card);margin-left:44px}.bubble.tutor:before{content:"V";position:absolute;left:-44px;bottom:0;display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--color-accent);color:var(--color-on-accent);font-weight:800}.bubble.system{align-self:center;background:var(--color-accent-soft);border-color:transparent;font-size:var(--font-sm)}.bubble .who{font-size:var(--font-xs);font-weight:700;color:var(--color-text-muted);margin-bottom:2px}.bubble-actions{display:flex;flex-wrap:wrap;gap:var(--space-xs);margin-top:var(--space-sm);padding-top:var(--space-xs);border-top:1px solid var(--color-border)}.composer{position:sticky;bottom:calc(var(--bottom-nav-h) + env(safe-area-inset-bottom));z-index:5;background:var(--color-surface);padding:var(--space-md);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-raised)}@media(min-width:768px){.composer{bottom:var(--space-md)}}.quick-actions{display:flex;gap:var(--space-sm);overflow-x:auto;scrollbar-width:none}.chip{display:inline-flex;align-items:center;gap:6px;flex:none;min-height:40px;padding:0 var(--space-md);border:1.5px solid var(--color-border);border-radius:var(--radius-pill);background:var(--color-surface);color:var(--color-text);font:inherit;font-size:var(--font-sm);font-weight:600;cursor:pointer;transition:border-color .15s ease-out,background-color .15s ease-out}.chip:hover{border-color:var(--color-primary);background:var(--color-primary-soft)}.chip:disabled{opacity:.55;cursor:not-allowed}.composer-row{display:flex;gap:var(--space-sm);align-items:flex-end}.composer-row textarea{flex:1;min-height:52px;max-height:180px}.typing:after{content:"▍";animation:blink 1s steps(2) infinite}@keyframes blink{50%{opacity:0}}.photo-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:var(--space-sm)}.photo-grid figure{margin:0;border:2px solid var(--color-border);border-radius:var(--radius-md);overflow:hidden;background:var(--color-surface)}.photo-grid figure.bad{border-color:var(--color-danger)}.photo-grid img{display:block;width:100%;height:120px;object-fit:cover}.photo-grid figcaption{padding:4px 6px;font-size:var(--font-xs)}.timer{font-variant-numeric:tabular-nums;font-weight:700;font-size:var(--font-lg)}.timer.urgent{color:var(--color-danger)}.bar-row{display:grid;grid-template-columns:2.5em 1fr 3em;align-items:center;gap:var(--space-sm)}.bar{height:22px;border-radius:0 4px 4px 0;background:var(--chart-1);min-width:2px}.bar.correct{background:var(--chart-3)}.chart{margin:0;min-width:0}.chart svg{display:block;width:100%;height:auto;overflow:visible}.chart-head{display:flex;align-items:center;justify-content:space-between;gap:var(--space-sm);flex-wrap:wrap;margin-bottom:var(--space-sm);font-weight:700}.chart-box{position:relative}.chart .grid-line{stroke:var(--color-border);stroke-width:1}.chart .axis-line{stroke:var(--color-text-muted);stroke-width:1;opacity:.5}.chart .axis-label{fill:var(--color-text-muted);font-size:12px;font-family:var(--font-family)}.bar-mark{transition:opacity .15s ease-out;cursor:pointer}.bar-mark.dim{opacity:.35}.bar-mark:focus-visible{outline:none;stroke:var(--color-text);stroke-width:2}.forecast-band{fill:var(--chart-2);opacity:.15}.legend{display:flex;flex-wrap:wrap;gap:var(--space-xs) var(--space-lg);font-size:var(--font-sm);color:var(--color-text-muted);margin-top:var(--space-sm)}.legend span{display:inline-flex;align-items:center}.legend i{display:inline-block;width:16px;height:4px;border-radius:2px;margin-right:8px}.legend i.dashed{height:0;border-top:3px dashed;border-radius:0;background:transparent!important}.legend i.band{height:12px;opacity:.25}.chart-tip{position:absolute;pointer-events:none;background:var(--color-text);color:var(--color-background);padding:4px 8px;border-radius:6px;font-size:12px;white-space:nowrap;transform:translate(-50%,-120%)}.heat-scroll{overflow-x:auto;border-radius:var(--radius-md)}.heat-table{width:100%;border-collapse:separate;border-spacing:3px;font-size:var(--font-sm);font-variant-numeric:tabular-nums}.heat-table thead th{font-size:var(--font-xs);font-weight:700;color:var(--color-text-muted);padding:4px 6px;text-align:center;white-space:nowrap}.heat-table tbody th{position:sticky;left:0;z-index:1;background:var(--color-surface);text-align:left;padding:6px 8px 6px 0;font-weight:600;white-space:nowrap}.heat-sub{display:block;font-size:var(--font-xs);font-weight:400;color:var(--color-text-muted)}.heat-table td{text-align:center;padding:10px 6px;border-radius:6px;font-weight:700;min-width:56px}.heat-1{background:var(--seq-1);color:var(--color-text)}.heat-2{background:var(--seq-2);color:#1e1b4b}.heat-3{background:var(--seq-3);color:#1e1b4b}.heat-4{background:var(--seq-4);color:#fff}.heat-5{background:var(--seq-5);color:#fff}.heat-table td.heat-extra,.heat-table th.heat-extra{background:transparent;color:var(--color-text);font-weight:600;border-left:1px solid var(--color-border);border-radius:0}.heat-na{background:var(--color-surface-alt);color:var(--color-text-muted);font-weight:400}@media(prefers-color-scheme:dark){.heat-2,.heat-3{color:#fff}.heat-4,.heat-5{color:#0f1020}}.heat-legend{display:flex;flex-wrap:wrap;align-items:center;gap:4px;margin-top:var(--space-sm);font-size:var(--font-xs);color:var(--color-text-muted)}.heat-legend i{width:22px;height:12px;border-radius:3px}.heat-legend-na{margin-left:var(--space-md)}.comp-dot{display:inline-block;width:12px;height:12px;border-radius:50%;flex:none}.kpi-row{display:grid;gap:var(--space-md);grid-template-columns:repeat(2,minmax(0,1fr))}@media(min-width:1024px){.kpi-row{grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--space-lg)}}.kpi{display:flex;flex-direction:column;gap:6px;padding:var(--space-md)}@media(min-width:768px){.kpi{padding:var(--space-lg)}}.kpi-top{display:flex;align-items:center;gap:var(--space-sm)}.kpi-icon{display:inline-grid;place-items:center;width:36px;height:36px;flex:none;border-radius:10px}.tone-primary{background:var(--color-primary-soft);color:var(--color-primary)}.tone-success{background:var(--color-success-soft);color:var(--color-success)}.tone-warning{background:var(--color-warning-soft);color:var(--color-warning)}.tone-danger{background:var(--color-danger-soft);color:var(--color-danger)}.tone-accent{background:var(--color-accent-soft);color:var(--color-warning)}.tone-blue{background:var(--color-blue-soft);color:var(--color-blue)}.kpi-label{font-size:var(--font-sm);font-weight:600;color:var(--color-text-muted);line-height:1.3}.kpi-value{font-size:var(--font-xxl);font-weight:800;line-height:1.15;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}@media(min-width:768px){.kpi-value{font-size:var(--font-xxxl)}}.kpi-trend{display:inline-flex;align-items:center;gap:4px;font-size:var(--font-xs);font-weight:700}.kpi-trend.good{color:var(--color-success)}.kpi-trend.bad{color:var(--color-danger)}.kpi-trend.neutral{color:var(--color-text-muted)}.kpi-hint{font-size:var(--font-xs);color:var(--color-text-muted)}.ring{position:relative;flex:none}.ring svg{width:100%;height:100%}.ring-track{fill:none;stroke:var(--color-primary-soft);stroke-width:12}.ring-bar{fill:none;stroke:var(--color-primary);stroke-width:12;stroke-linecap:round;transition:stroke-dashoffset .25s ease-out}.ring-bar.done{stroke:var(--color-success)}.ring-center{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;line-height:1.15}.ring-center strong{font-size:var(--font-xl);font-variant-numeric:tabular-nums}.ring-center span{font-size:var(--font-xs);color:var(--color-text-muted)}.hello{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:var(--space-lg);padding:var(--space-xl);border-radius:20px;background:linear-gradient(135deg,#4338ca,#3730a3 60%,#312e81);color:#fff;box-shadow:var(--shadow-raised);overflow:hidden;position:relative}.hello:after{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;background:#f2b7052e;pointer-events:none}.hello h1{margin:0 0 var(--space-xs);color:#fff}.hello p{margin:0;color:#e0e7ff}.hello .btn{position:relative;z-index:1}.hello-text{flex:1 1 260px;min-width:0;position:relative;z-index:1}.continue{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-md)}.continue-text{flex:1 1 180px;min-width:0}@media(max-width:599px){.continue .btn{width:100%}}.continue-icon{display:inline-grid;place-items:center;width:48px;height:48px;flex:none;border-radius:14px;background:var(--color-success-soft);color:var(--color-success)}.subject-grid{display:grid;gap:var(--space-md);grid-template-columns:repeat(auto-fill,minmax(min(100%,150px),1fr))}.subject-card{display:flex;flex-direction:column;gap:6px;padding:var(--space-md)}.kpi-aside{position:absolute;top:var(--space-md);right:var(--space-md)}.kpi{position:relative}.kpi-aside+.kpi-top{padding-right:52px}.subject-card .subject-ico{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:12px;background:var(--color-primary-soft);color:var(--color-primary)}.meter{display:flex;flex-direction:column;gap:6px;padding:var(--space-sm) 0}a.meter{padding:var(--space-sm);margin:0 calc(-1 * var(--space-sm));border-radius:var(--radius-md);border:0}a.meter:hover{background:var(--color-surface-alt);box-shadow:none}.meter-top{display:flex;justify-content:space-between;gap:var(--space-sm);font-size:var(--font-sm)}.meter-label{font-weight:600;min-width:0;overflow:hidden;text-overflow:ellipsis}.meter-value{font-weight:700;font-variant-numeric:tabular-nums}.child-switch{display:flex;gap:var(--space-sm);overflow-x:auto;padding-bottom:2px}.child-switch button{display:inline-flex;align-items:center;gap:var(--space-sm);flex:none;min-height:var(--touch);padding:0 var(--space-lg) 0 6px;border:1.5px solid var(--color-border);border-radius:var(--radius-pill);background:var(--color-surface);color:var(--color-text);font:inherit;font-weight:600;transition:border-color .15s ease-out,background-color .15s ease-out}.child-switch button:hover{border-color:var(--color-primary)}.child-switch button[aria-pressed=true]{border-color:var(--color-primary);background:var(--color-primary-soft);color:var(--color-primary)}.child-switch .avatar{width:34px;height:34px;margin:0}.plan-card{position:relative;display:flex;flex-direction:column;gap:var(--space-sm)}.plan-card .price{font-size:var(--font-xxl);font-weight:800;line-height:1.15;font-variant-numeric:tabular-nums}.plan-card .price small{font-size:var(--font-sm);font-weight:600;color:var(--color-text-muted)}.plan-card ul{list-style:none;padding:0;margin:var(--space-sm) 0 0;display:flex;flex-direction:column;gap:var(--space-sm)}.plan-card li{display:flex;gap:var(--space-sm);align-items:flex-start}.plan-card li .icon{color:var(--color-success);margin-top:2px}.plan-card.highlight{border:2px solid var(--color-primary);box-shadow:var(--shadow-raised)}.plan-ribbon{position:absolute;top:-12px;left:var(--space-lg);padding:2px 12px;border-radius:var(--radius-pill);background:var(--color-accent);color:var(--color-on-accent);font-size:var(--font-xs);font-weight:800}.hero{display:grid;gap:var(--space-xl);align-items:center;padding:var(--space-lg) 0 var(--space-xl)}.hero h1{font-size:clamp(1.9rem,5vw,3rem);font-weight:800;line-height:1.1;letter-spacing:-.02em;margin-bottom:var(--space-md)}.hero h1 em{font-style:normal;color:var(--color-primary)}.hero-lead{font-size:var(--font-lg);color:var(--color-text-muted);max-width:60ch}.hero-visual{position:relative;border-radius:24px;padding:var(--space-lg);background:linear-gradient(160deg,var(--color-primary-soft),var(--color-surface));border:1px solid var(--color-border);display:flex;flex-direction:column;gap:var(--space-md)}.hero-visual .bubble{max-width:88%;font-size:var(--font-sm)}@media(min-width:900px){.hero{grid-template-columns:1.15fr 1fr;padding:var(--space-xxl) 0}}.trust{display:flex;flex-wrap:wrap;gap:var(--space-sm) var(--space-lg);margin-top:var(--space-lg);font-size:var(--font-sm);color:var(--color-text-muted)}.trust span{display:inline-flex;align-items:center;gap:6px}.trust .icon{color:var(--color-success)}.feature-card{display:flex;flex-direction:column;gap:var(--space-sm)}.feature-card .kpi-icon{width:44px;height:44px;border-radius:12px}.feature-card h3{margin:var(--space-xs) 0 0;font-size:var(--font-lg)}.feature-card p{margin:0;color:var(--color-text-muted)}.section-title{text-align:center;max-width:640px;margin:0 auto var(--space-xl)}.section-title h2{font-size:clamp(1.5rem,3.5vw,2rem);margin-bottom:var(--space-sm)}.section-title p{color:var(--color-text-muted);margin:0}.steps{list-style:none;margin:0;padding:0;display:grid;gap:var(--space-md);counter-reset:step}@media(min-width:768px){.steps{grid-template-columns:repeat(4,minmax(0,1fr))}}.steps li{counter-increment:step;position:relative;padding-top:var(--space-xxl)}.steps li:before{content:counter(step);position:absolute;top:var(--space-lg);left:var(--space-lg);display:grid;place-items:center;width:36px;height:36px;border-radius:50%;background:var(--color-primary);color:var(--color-on-primary);font-weight:800}.steps li.card{padding-top:72px}.steps h3{margin-bottom:var(--space-xs)}.steps p{margin:0;color:var(--color-text-muted);font-size:var(--font-sm)}.cta-band{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:var(--space-lg);padding:var(--space-xl);border-radius:24px;background:linear-gradient(135deg,#312e81,#4338ca);color:#fff}.cta-band h2{color:#fff;margin:0 0 var(--space-xs);font-size:var(--font-xxl)}.cta-band p{margin:0;color:#e0e7ff}.steps-nav{display:flex;gap:6px;flex-wrap:wrap}.steps-nav span{width:28px;height:8px;border-radius:4px;background:var(--color-border)}.steps-nav span.done{background:var(--color-primary)}.steps-nav span.current{background:var(--color-accent)}pre.json{white-space:pre-wrap;word-break:break-word;font-size:var(--font-xs);background:var(--color-surface-alt);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-md);max-height:300px;overflow:auto}.secret{font-family:ui-monospace,Menlo,Consolas,monospace;background:var(--color-accent-soft);padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);word-break:break-all}.subnav{display:flex;gap:var(--space-xs);overflow-x:auto;padding:4px;background:var(--color-surface-alt);border:1px solid var(--color-border);border-radius:var(--radius-md);scrollbar-width:none}.subnav a{display:inline-flex;align-items:center;flex:none;min-height:40px;padding:0 var(--space-lg);border-radius:9px;color:var(--color-text-muted);font-size:var(--font-sm);font-weight:600;text-decoration:none;transition:background-color .15s ease-out,color .15s ease-out}.subnav a:hover{color:var(--color-text)}.subnav a.active{background:var(--color-surface);color:var(--color-primary);box-shadow:var(--shadow-card)}.mini-stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-sm);margin:0}.mini-stats>div{padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);background:var(--color-surface-alt);border:1px solid var(--color-border)}.mini-stats dt{font-size:var(--font-xs);color:var(--color-text-muted)}.mini-stats dd{margin:0;font-weight:800;font-size:var(--font-lg);font-variant-numeric:tabular-nums}.auth-shell .public-main{max-width:none;padding:0;min-height:calc(100vh - var(--header-h))}.auth-scene{position:relative;isolation:isolate;min-height:calc(100vh - var(--header-h));overflow:hidden;display:flex}.auth-bg,.auth-bg img{position:absolute;inset:0;width:100%;height:100%}.auth-bg{z-index:-2}.auth-bg img{object-fit:cover;object-position:center 35%}.auth-overlay{position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,#1e1b4bd1,#1e1b4b8c 38%,#1e1b4be0),linear-gradient(90deg,#4338ca59,#15803d26)}.auth-grid{width:100%;max-width:var(--max-w);margin:0 auto;padding:var(--space-xl) var(--space-md) var(--space-xxl);display:grid;gap:var(--space-xl);align-content:start}.auth-pitch{color:#fff}.auth-pitch h2{font-size:clamp(1.6rem,5vw,2.6rem);line-height:1.15;margin:var(--space-sm) 0;color:#fff}.auth-eyebrow{display:inline-flex;align-items:center;gap:8px;margin:0;padding:6px 12px;border-radius:var(--radius-pill);background:#ffffff24;border:1px solid rgba(255,255,255,.25);font-size:var(--font-sm);font-weight:600}.auth-lead{color:#e0e7ff;font-size:var(--font-lg);max-width:46ch;margin:0}.auth-points{display:none;list-style:none;padding:0;margin:var(--space-xl) 0 0;gap:var(--space-md)}.auth-points li{display:flex;align-items:center;gap:var(--space-md);color:#eef2ff;font-weight:500}.auth-point-icon{flex:none;display:grid;place-items:center;width:36px;height:36px;border-radius:12px;background:#f2b7052e;color:#f2b705}.auth-panel{display:flex;flex-direction:column;gap:var(--space-sm)}.auth-card{width:100%;max-width:480px;margin:0 auto;padding:var(--space-xl);border:1px solid rgba(255,255,255,.6);box-shadow:0 24px 60px #0f102059;display:flex;flex-direction:column;gap:var(--space-lg)}.auth-card.wide{max-width:560px}.auth-card h1{font-size:var(--font-xxl);margin:0}.auth-head{display:flex;align-items:center;gap:var(--space-md)}.auth-head p{margin:2px 0 0;font-size:var(--font-sm)}.auth-badge{flex:none;display:grid;place-items:center;width:48px;height:48px;border-radius:14px;background:var(--color-primary-soft);color:var(--color-primary)}.auth-badge.accent{background:var(--color-accent-soft);color:#92400e}.auth-credit{margin:0 auto;max-width:560px;text-align:center;font-size:.72rem}.auth-credit a{color:#ffffffbf;text-decoration:none}.auth-credit a:hover{color:#fff;text-decoration:underline}.auth-switch{margin:0;text-align:center;font-size:var(--font-sm);color:var(--color-text-muted)}.auth-switch a{font-weight:700}@media(min-width:1024px){.auth-scene{align-items:center}.auth-grid{grid-template-columns:minmax(0,1fr) minmax(420px,520px);align-items:center;gap:var(--space-xxxl);padding:var(--space-xxxl) var(--space-xl)}.auth-points{display:grid}.auth-overlay{background:linear-gradient(90deg,#1e1b4be6,#1e1b4bb8 45%,#1e1b4b73),linear-gradient(0deg,rgba(30,27,75,.5),transparent 40%)}}.method-picker{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-sm)}.method-option,.role-option{position:relative;display:flex;align-items:center;gap:var(--space-sm);min-height:72px;padding:var(--space-md);border:2px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-text);text-align:left;cursor:pointer;transition:border-color .2s ease-out,background-color .2s ease-out,box-shadow .2s ease-out}.method-option:hover,.role-option:hover{border-color:var(--color-primary)}.method-option[aria-selected=true],.role-option.selected{border-color:var(--color-primary);background:var(--color-primary-soft);box-shadow:0 0 0 3px #4338ca1f}.method-icon{flex:none;display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:var(--color-primary-soft);color:var(--color-primary)}.method-option[aria-selected=true] .method-icon,.role-option.selected .method-icon{background:var(--color-primary);color:var(--color-on-primary)}.method-text{display:flex;flex-direction:column;gap:2px;min-width:0}.method-text strong{font-size:var(--font-md)}.method-text small{color:var(--color-text-muted);font-size:var(--font-xs);line-height:1.35}.method-check{position:absolute;top:8px;right:8px;color:var(--color-primary)}@media(max-width:400px){.method-text small{display:none}}.role-picker{border:0;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:var(--space-sm)}.role-picker legend{font-weight:600;margin-bottom:var(--space-sm);padding:0}.role-option input{position:absolute;opacity:0;pointer-events:none}.role-option:has(input:focus-visible){outline:3px solid var(--color-primary);outline-offset:2px}.input-group{display:flex;align-items:stretch;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface);overflow:hidden;transition:border-color .2s ease-out,box-shadow .2s ease-out}.input-group:focus-within{border-color:var(--color-primary);box-shadow:0 0 0 3px #4338ca2e}.input-group input{flex:1;min-width:0;border:0!important;box-shadow:none!important;outline:none;background:transparent}.input-prefix{display:inline-flex;align-items:center;gap:6px;padding:0 12px;background:var(--color-surface-alt);border-right:1px solid var(--color-border);color:var(--color-text-muted);font-weight:600;font-variant-numeric:tabular-nums}.input-suffix-btn{display:grid;place-items:center;width:48px;border:0;background:transparent;color:var(--color-text-muted);cursor:pointer}.input-suffix-btn:hover{color:var(--color-primary)}.otp-wrap{position:relative}.otp-input{position:absolute;inset:0;width:100%;height:100%;opacity:0;font-size:16px;cursor:text;z-index:1}.otp-boxes{display:grid;grid-template-columns:repeat(6,1fr);gap:8px}.otp-boxes span{display:grid;place-items:center;height:56px;border:2px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);font-size:1.5rem;font-weight:700;font-variant-numeric:tabular-nums;color:var(--color-text);transition:border-color .15s ease-out}.otp-boxes span.filled{border-color:var(--color-primary);background:var(--color-primary-soft)}.otp-wrap:focus-within .otp-boxes span.active{border-color:var(--color-primary);box-shadow:0 0 0 3px #4338ca2e}.sent-to{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:10px 12px;border-radius:var(--radius-sm);background:var(--color-success-soft, #dcfce7);color:var(--color-text);font-size:var(--font-sm)}.sent-to>.icon{color:var(--color-success)}.link-btn{border:0;background:none;padding:0;color:var(--color-primary);font:inherit;font-weight:600;text-decoration:underline;cursor:pointer}.trial-banner{display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:var(--radius-md);background:linear-gradient(90deg,var(--color-accent-soft),var(--color-primary-soft));color:var(--color-text);font-size:var(--font-sm)}.trial-banner .icon{flex:none;color:#b45309}.stepper{display:flex;list-style:none;margin:0;padding:0;gap:8px}.stepper li{flex:1;display:flex;align-items:center;gap:8px;color:var(--color-text-muted);font-size:var(--font-sm);font-weight:600}.stepper li:after{content:"";flex:1;height:2px;background:var(--color-border);border-radius:2px}.stepper li:last-child:after{display:none}.stepper-dot{flex:none;display:grid;place-items:center;width:28px;height:28px;border-radius:50%;border:2px solid var(--color-border);background:var(--color-surface);font-size:.8rem}.stepper li.current{color:var(--color-primary)}.stepper li.current .stepper-dot{border-color:var(--color-primary);background:var(--color-primary);color:var(--color-on-primary)}.stepper li.done{color:var(--color-success)}.stepper li.done .stepper-dot{border-color:var(--color-success);background:var(--color-success);color:#fff}.stepper li.done:after{background:var(--color-success)}@media(max-width:400px){.stepper-label{display:none}}.or-divider{display:flex;align-items:center;gap:var(--space-md);color:var(--color-text-muted);font-size:var(--font-sm)}.or-divider:before,.or-divider:after{content:"";flex:1;height:1px;background:var(--color-border)}.google-slot{display:flex;justify-content:center}.google-official{width:100%;display:flex;justify-content:center;min-height:44px}.google-official.hidden{display:none}.btn.google-btn{width:100%;gap:12px;background:#fff;color:#1f1f1f;border:1px solid #747775;border-radius:var(--radius-pill);font-weight:600}.btn.google-btn:hover{background:#f8faff;color:#1f1f1f;border-color:#4338ca}.public-nav{display:none;gap:var(--space-lg);margin-left:var(--space-xl)}.public-nav a{color:var(--color-text-muted);font-weight:600;text-decoration:none;padding:8px 4px;border-bottom:2px solid transparent}.public-nav a:hover{color:var(--color-primary);border-bottom-color:var(--color-primary)}.auth-actions{display:flex;align-items:center;gap:var(--space-sm)}.btn.header-login{background:transparent;color:var(--color-primary);border:2px solid var(--color-primary);border-radius:var(--radius-pill);padding-inline:14px}.btn.header-login:hover,.btn.header-login.current{background:var(--color-primary-soft);color:var(--color-primary-dark)}.btn.header-signup{background:var(--color-accent);color:var(--color-on-accent);border:2px solid var(--color-accent);border-radius:var(--radius-pill);padding-inline:16px;box-shadow:0 4px 14px #f2b70559}.btn.header-signup:hover,.btn.header-signup.current{background:#e0a800;border-color:#e0a800;color:var(--color-on-accent)}.header-signup-extra{display:none}@media(max-width:479px){.btn.header-login span{display:none}.btn.header-login{width:44px;padding:0}.btn.header-signup .icon{display:none}}@media(min-width:1024px){.public-nav{display:flex}.header-signup-extra{display:inline;margin-left:-4px}}.footer{background:#1e1b4b;color:#c7d2fe;border-top:0;padding:var(--space-xxl) var(--space-md) 0}.footer-inner{display:grid;gap:var(--space-xl)}.footer .brand,.footer .brand-name{color:#fff}.footer p{color:#c7d2fe;max-width:44ch;line-height:1.6}.footer-cta{display:flex;flex-wrap:wrap;gap:var(--space-sm);margin-top:var(--space-md)}.btn.footer-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.4)}.btn.footer-ghost:hover{background:#ffffff1a;color:#fff}.footer-col{display:flex;flex-direction:column;gap:10px}.footer-col h2{margin:0 0 4px;font-size:var(--font-sm);text-transform:uppercase;letter-spacing:.06em;color:#fff}.footer a,.footer-col a{color:#c7d2fe;text-decoration:none}.footer a:hover,.footer-col a:hover{color:#fff;text-decoration:underline}.footer-note{display:inline-flex;align-items:center;gap:6px;font-size:var(--font-sm)}.footer-bottom{max-width:var(--max-w);margin:var(--space-xl) auto 0;padding:var(--space-lg) 0;border-top:1px solid rgba(199,210,254,.2);display:flex;flex-wrap:wrap;justify-content:space-between;gap:var(--space-sm);font-size:var(--font-xs);color:#a5b4fc}@media(min-width:768px){.footer-inner{grid-template-columns:1.6fr 1fr 1fr 1.2fr}.footer{padding:var(--space-xxxl) var(--space-xl) 0}}@media(prefers-reduced-motion:reduce){.method-option,.role-option,.input-group,.otp-boxes span{transition:none}}
