@import"https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@600;700;800&display=swap";@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}:root{color-scheme:light;--bg: #f6f7fb;--surface: #fff;--surface-2: #eff1f7;--text: #17171c;--muted: #656675;--line: #dddfea;--brand: #6d3ee8;--brand-2: #4b24ae;--accent: #10a486;--warm: #f3b43f;--danger: #c73953;--success: #087f67;--shadow: 0 12px 35px rgba(35, 29, 61, .09);--sidebar: 220px}[data-theme=dark]{color-scheme:dark;--bg: #121216;--surface: #1b1b22;--surface-2: #24242d;--text: #f3f2f7;--muted: #a5a5b2;--line: #34343f;--brand: #9b7af4;--brand-2: #bea9fa;--accent: #4cc9ad;--warm: #f2bd59;--danger: #ff7891;--success: #59d7ba;--shadow: 0 18px 40px rgba(0, 0, 0, .25)}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:92px}body{margin:0;background:var(--bg);color:var(--text);font-family:DM Sans,system-ui,sans-serif;line-height:1.6}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit}h1,h2,h3{font-family:Manrope,sans-serif;line-height:1.14;margin:0;letter-spacing:0}p{margin:0;color:var(--muted)}:focus-visible{outline:3px solid color-mix(in srgb,var(--brand) 60%,white);outline-offset:3px}.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:fixed;z-index:1000;top:-60px;left:16px;background:var(--text);color:var(--bg);padding:10px 14px;border-radius:4px;transition:top .2s}.skip-link:focus{top:12px}.topbar{position:fixed;z-index:40;inset:0 0 auto;height:72px;background:color-mix(in srgb,var(--surface) 92%,transparent);border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);display:grid;grid-template-columns:var(--sidebar) minmax(240px,600px) 1fr;align-items:center;gap:28px;padding:0 24px}.brand{display:inline-flex;align-items:center;gap:11px;text-decoration:none;font:800 20px Manrope}.brand-mark{width:35px;height:35px;display:grid;place-items:center;color:#fff;background:var(--brand);border-radius:7px}.topbar-actions{display:flex;justify-content:flex-end;gap:8px}.account-chip{display:inline-flex;min-height:40px;align-items:center;gap:7px;padding:0 12px;border:1px solid var(--line);border-radius:7px;background:var(--surface);color:var(--muted);text-decoration:none;font-size:13px;font-weight:800}.account-chip:hover,.account-chip.connected{border-color:color-mix(in srgb,var(--brand) 55%,var(--line));color:var(--brand);background:color-mix(in srgb,var(--brand) 8%,var(--surface))}.icon-button{width:40px;height:40px;border:1px solid var(--line);color:var(--text);background:var(--surface);display:inline-grid;place-items:center;border-radius:7px;cursor:pointer}.icon-button:hover,.icon-button.active{border-color:var(--brand);color:var(--brand);background:color-mix(in srgb,var(--brand) 9%,var(--surface))}.mobile-menu{display:none}.sidebar{position:fixed;z-index:30;top:72px;bottom:0;left:0;width:var(--sidebar);padding:24px 14px;border-right:1px solid var(--line);background:var(--surface);display:flex;flex-direction:column;gap:6px}.sidebar>a{display:flex;align-items:center;gap:12px;padding:11px 13px;border-radius:6px;color:var(--muted);text-decoration:none;font-weight:600}.sidebar>a:hover,.sidebar>a.active{color:var(--brand);background:color-mix(in srgb,var(--brand) 9%,var(--surface))}.sidebar-foot{margin-top:auto;padding:14px 13px;border-top:1px solid var(--line);display:flex;flex-direction:column}.sidebar-foot span{font-weight:700}.sidebar-foot small{color:var(--muted)}.mobile-search{display:none}.main-content{margin-left:var(--sidebar);padding-top:72px;min-height:100vh}.page{max-width:1320px;margin:0 auto;padding:48px clamp(24px,4vw,64px) 80px}.narrow-page{max-width:1180px}.search-box{position:relative;height:44px;display:flex;align-items:center;gap:10px;padding:4px 5px 4px 14px;background:var(--surface-2);border:1px solid transparent;border-radius:7px}.search-box:focus-within{border-color:var(--brand);background:var(--surface)}.search-box input{min-width:0;flex:1;border:0;outline:0;color:var(--text);background:transparent}.search-box button{border:0;border-radius:5px;background:var(--brand);color:#fff;height:34px;padding:0 17px;font-weight:700;cursor:pointer}.search-box-large{height:58px;background:var(--surface);border-color:var(--line);box-shadow:var(--shadow)}.search-box-large button{height:46px;padding:0 24px}.hero{min-height:480px;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(340px,.95fr);align-items:center;gap:5vw;padding:30px 0 46px}.hero-copy h1{max-width:780px;font-size:clamp(42px,5vw,70px);margin:12px 0 18px}.hero-copy>p{font-size:19px;max-width:620px;margin-bottom:30px}.hero-copy .search-box{max-width:690px}.eyebrow{color:var(--brand);font-weight:800;text-transform:uppercase;font-size:12px;letter-spacing:.08em}.hero-visual{min-height:360px;background:var(--surface);border:1px solid var(--line);border-radius:8px;overflow:hidden;box-shadow:var(--shadow)}.coordinate-grid{height:100%;min-height:360px;position:relative;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:26px 26px}.coordinate-grid svg{width:100%;height:100%;position:absolute;inset:0}.coordinate-grid path{fill:none;stroke:var(--brand);stroke-width:5}.coordinate-grid line{stroke:var(--muted);stroke-width:1.5}.formula-float{position:absolute;z-index:2;padding:8px 11px;background:var(--surface);border:1px solid var(--line);border-radius:5px;font:700 15px Georgia,serif;box-shadow:0 5px 15px #00000014}.f1{left:20px;top:20px}.f2{right:24px;top:86px;color:var(--accent)}.f3{left:25%;bottom:20px;color:var(--brand)}.stats-band{background:var(--text);color:var(--bg);display:grid;grid-template-columns:repeat(3,1fr);padding:24px 30px;border-radius:7px;margin-bottom:70px}.stats-band div{display:flex;align-items:baseline;justify-content:center;gap:10px;border-right:1px solid color-mix(in srgb,var(--bg) 20%,transparent)}.stats-band div:last-child{border:0}.stats-band strong{font:800 25px Manrope}.stats-band span{opacity:.75}.section-block{margin-top:66px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:24px}.section-heading h2{font-size:28px;display:flex;gap:10px;align-items:center}.section-heading .eyebrow+h2{margin-top:5px}.lesson-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.lesson-card{display:flex;flex-direction:column;min-height:295px;padding:22px;background:var(--surface);border:1px solid var(--line);border-radius:7px}.lesson-card:hover{transform:translateY(-2px);border-color:color-mix(in srgb,var(--brand) 45%,var(--line));box-shadow:var(--shadow)}.lesson-card-top{display:flex;justify-content:space-between;align-items:start}.lesson-card h3{font-size:21px;margin:18px 0 9px}.lesson-card p{font-size:14px}.lesson-meta{margin-top:auto;padding-top:20px;display:flex;gap:16px;color:var(--muted);font-size:13px}.text-link{display:inline-flex;align-items:center;gap:6px;width:fit-content;margin-top:14px;color:var(--brand);font-weight:700;text-decoration:none}.feature-row{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;border-top:1px solid var(--line);padding-top:28px}.feature-row svg{color:var(--brand)}.feature-row h3{margin:14px 0 7px;font-size:17px}.feature-row p{font-size:14px}.page-header{max-width:780px;margin-bottom:44px}.page-header h1{font-size:45px;margin:7px 0 12px}.page-header>p{font-size:18px}.page-header .search-box{margin-top:26px}.subject-section{padding-top:28px;border-top:1px solid var(--line)}.subject-title{display:flex;gap:16px;margin-bottom:28px}.subject-index{font:800 13px Manrope;color:var(--brand)}.subject-title h2{font-size:24px}.roadmap-note,.inline-empty{margin-top:30px;padding:20px;background:var(--surface-2);border-left:4px solid var(--warm);border-radius:4px}.roadmap-note p{margin-top:4px}.atlas-filters{display:grid;grid-template-columns:minmax(0,1fr) minmax(180px,240px);gap:14px;margin-bottom:28px;padding:18px;border:1px solid var(--line);background:var(--surface);border-radius:7px}.atlas-filters label{display:block;margin-bottom:6px;color:var(--muted);font-size:13px;font-weight:700}.atlas-filters input,.atlas-filters select{width:100%;min-height:42px;padding:8px 11px;border:1px solid var(--line);border-radius:6px;background:var(--bg);color:var(--text)}.curriculum-page{max-width:1320px}.curriculum-metrics{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));margin-bottom:20px;border:1px solid var(--line);background:var(--surface);border-radius:7px}.curriculum-metrics div{min-width:0;padding:18px;border-right:1px solid var(--line)}.curriculum-metrics div:last-child{border:0}.curriculum-metrics strong{display:block;color:var(--brand);font:800 25px Manrope}.curriculum-metrics span{color:var(--muted);font-size:13px}.curriculum-target{display:flex;align-items:center;gap:14px;margin-bottom:28px;padding:18px 20px;border-left:4px solid var(--accent);background:color-mix(in srgb,var(--accent) 8%,var(--surface))}.curriculum-target svg{flex:0 0 auto;color:var(--accent)}.curriculum-filters{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:14px;margin-bottom:18px}.curriculum-filters label>span{display:block;margin-bottom:6px;color:var(--muted);font-size:13px;font-weight:700}.curriculum-filters label>div{display:flex;align-items:center;min-height:44px;padding:0 12px;border:1px solid var(--line);border-radius:6px;background:var(--surface)}.curriculum-filters input{min-width:0;flex:1;border:0;outline:0;padding:9px;background:transparent;color:var(--text)}.curriculum-filters select{width:100%;min-height:44px;padding:8px 11px;border:1px solid var(--line);border-radius:6px;background:var(--surface);color:var(--text)}.curriculum-browser{display:grid;grid-template-columns:minmax(260px,330px) minmax(0,1fr);min-height:650px;border:1px solid var(--line);border-radius:7px;background:var(--surface);overflow:hidden}.curriculum-area-list{max-height:720px;overflow:auto;border-right:1px solid var(--line)}.curriculum-list-header{position:sticky;top:0;z-index:1;display:flex;justify-content:space-between;padding:15px;background:var(--surface-2)}.curriculum-list-header span{color:var(--muted);font-size:12px}.curriculum-area-list button{width:100%;display:grid;grid-template-columns:34px 1fr;gap:8px;padding:13px 14px;border:0;border-bottom:1px solid var(--line);background:transparent;color:var(--text);text-align:left;cursor:pointer}.curriculum-area-list button>span{color:var(--muted);font:700 12px Manrope}.curriculum-area-list button div{min-width:0}.curriculum-area-list button strong,.curriculum-area-list button small{display:block}.curriculum-area-list button strong{font-size:14px}.curriculum-area-list button small{color:var(--muted)}.curriculum-area-list button.active{background:color-mix(in srgb,var(--brand) 10%,var(--surface));box-shadow:inset 3px 0 var(--brand)}.curriculum-area-detail{min-width:0;padding:30px}.curriculum-detail-header h2{margin:5px 0;font-size:28px}.curriculum-area-goal{display:flex;align-items:center;gap:10px;margin:22px 0;padding:14px;background:var(--surface-2);border-radius:6px}.curriculum-area-goal svg{color:var(--brand)}.curriculum-topic-list{margin:0;padding:0;list-style:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.curriculum-topic-list li{min-width:0;display:grid;grid-template-columns:48px minmax(0,1fr) auto;align-items:center;gap:8px;padding:10px;border:1px solid var(--line);border-radius:5px}.curriculum-topic-list li>span{color:var(--brand);font:700 11px Manrope}.curriculum-topic-list li strong{min-width:0;font-size:13px}.curriculum-topic-list li em{color:var(--muted);font-size:10px;font-style:normal;text-transform:uppercase}.result-count{margin-bottom:18px}.results-list{display:grid;gap:12px}.search-result{display:flex;justify-content:space-between;gap:20px;padding:22px;border:1px solid var(--line);background:var(--surface);border-radius:7px;text-decoration:none}.search-result:hover{border-color:var(--brand)}.search-result h2{font-size:20px;margin:5px 0 1px}.search-result h3{font:600 14px DM Sans;color:var(--brand);margin-bottom:5px}.search-result p{font-size:14px;max-width:760px}.confidence{color:var(--muted);font-size:13px}.empty-state{max-width:660px;margin:60px auto;text-align:center;padding:45px 24px}.empty-state svg{color:var(--muted)}.empty-state h1,.empty-state h2{margin:10px 0}.empty-state p{margin-bottom:24px}.query-chips{display:flex;justify-content:center;flex-wrap:wrap;gap:8px}.query-chips a{padding:8px 12px;background:var(--surface);border:1px solid var(--line);border-radius:5px;text-decoration:none;color:var(--brand)}.lesson-page{display:grid;grid-template-columns:210px minmax(0,760px);justify-content:center;gap:60px;max-width:1120px;margin:0 auto;padding:48px 30px 100px}.lesson-toc{position:sticky;top:104px;align-self:start;max-height:calc(100vh - 125px);overflow:auto}.back-link{display:flex;align-items:center;color:var(--brand);text-decoration:none;margin-bottom:28px}.lesson-toc>strong{display:block;margin-bottom:10px}.lesson-toc nav{display:grid;border-left:1px solid var(--line)}.lesson-toc nav a{padding:6px 13px;color:var(--muted);text-decoration:none;font-size:13px}.lesson-toc nav a:hover{color:var(--brand);border-left:2px solid var(--brand);margin-left:-1px}.lesson-header{padding-bottom:34px;border-bottom:1px solid var(--line)}.lesson-header h1{font-size:46px;margin:9px 0 12px}.lesson-header>p{font-size:18px}.lesson-header .lesson-meta{margin:18px 0;padding:0}.lesson-meta span{display:inline-flex;align-items:center;gap:5px}.lesson-actions{display:flex;flex-wrap:wrap;gap:10px}.button{display:inline-flex;justify-content:center;align-items:center;gap:8px;min-height:40px;padding:8px 15px;border-radius:6px;border:1px solid transparent;font-weight:700;cursor:pointer;text-decoration:none}.button.primary{background:var(--brand);color:#fff}.button.secondary{background:var(--surface);color:var(--text);border-color:var(--line)}.success-button{background:color-mix(in srgb,var(--success) 14%,var(--surface));color:var(--success);border-color:var(--success)}.objectives{margin:28px 0 44px;padding:20px;background:color-mix(in srgb,var(--brand) 7%,var(--surface));border-radius:7px}.objectives ul{list-style:none;padding:0;margin:10px 0 0;display:grid;gap:7px}.objectives li{display:flex;gap:9px;align-items:center}.objectives svg{color:var(--success)}.lesson-section{position:relative;padding:8px 0 36px}.lesson-section h2{font-size:27px;margin-bottom:11px}.lesson-section p{font-size:17px;color:color-mix(in srgb,var(--text) 76%,var(--muted))}.type-mistakes{padding:22px;margin-bottom:30px;background:color-mix(in srgb,var(--warm) 12%,var(--surface));border-left:4px solid var(--warm);border-radius:4px}.formula{overflow-x:auto;margin:20px 0 4px;padding:18px;background:var(--surface);border:1px solid var(--line);border-radius:6px;text-align:center}.practice-section{scroll-margin-top:90px;border-top:1px solid var(--line);padding-top:38px}.practice-section>h2{margin:5px 0 24px}.exercise-block{position:relative;padding:22px;margin-bottom:16px;background:var(--surface);border:1px solid var(--line);border-radius:7px}.exercise-number{color:var(--brand);font-weight:800;font-size:13px;margin-bottom:7px}.exercise-block>p{color:var(--text)}.answer-row{display:flex;gap:8px;margin-top:16px}.answer-row input{flex:1;min-width:0;border:1px solid var(--line);background:var(--bg);color:var(--text);border-radius:6px;padding:9px 12px}.exercise-actions{display:flex;gap:18px;margin-top:10px}.text-button{display:inline-flex;gap:6px;align-items:center;border:0;background:none;color:var(--brand);cursor:pointer;padding:4px 0;font-weight:600}.hint,.feedback{display:flex;gap:10px;align-items:start;margin-top:14px;padding:13px;border-radius:5px}.hint{background:color-mix(in srgb,var(--warm) 12%,var(--surface))}.feedback p{font-size:14px}.feedback.success{color:var(--success);background:color-mix(in srgb,var(--success) 10%,var(--surface))}.feedback.error{color:var(--danger);background:color-mix(in srgb,var(--danger) 9%,var(--surface))}.references{border-top:1px solid var(--line);margin-top:40px;padding-top:34px}.references ul{color:var(--muted)}.editorial-note{font-size:13px;font-style:italic}.progress-overview{display:flex;align-items:center;gap:28px;padding:28px;background:var(--surface);border:1px solid var(--line);border-radius:7px}.progress-ring{--progress: 0deg;flex:0 0 auto;width:110px;aspect-ratio:1;display:grid;place-items:center;border-radius:50%;background:conic-gradient(var(--brand) var(--progress),var(--surface-2) 0);position:relative}.progress-ring:after{content:"";position:absolute;width:80px;aspect-ratio:1;border-radius:50%;background:var(--surface)}.progress-ring span{z-index:1;font:800 20px Manrope}.learning-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;margin-top:18px;overflow:hidden;border:1px solid var(--line);border-radius:7px;background:var(--line)}.learning-stats div{display:flex;flex-direction:column;align-items:center;padding:18px;background:var(--surface)}.learning-stats strong{font:800 25px Manrope;color:var(--brand)}.learning-stats span{color:var(--muted);font-size:13px}.teacher-panel{position:relative;margin:0 0 42px;padding:24px;background:var(--surface);border:1px solid color-mix(in srgb,var(--brand) 40%,var(--line));border-radius:7px;box-shadow:var(--shadow)}.teacher-heading{display:flex;align-items:center;gap:13px;margin-bottom:18px}.teacher-heading h2{font-size:22px}.teacher-icon{width:42px;height:42px;display:grid;place-items:center;border-radius:6px;background:color-mix(in srgb,var(--brand) 14%,var(--surface));color:var(--brand)}.teacher-modes{max-width:390px}.teacher-explanation{min-height:74px;padding:18px 0;color:var(--text);font-size:16px}.teacher-check,.assignment{display:flex;align-items:flex-start;gap:12px;padding:14px;margin-top:10px;border-radius:6px;background:var(--surface-2)}.teacher-check>svg{color:var(--brand);flex:0 0 auto}.assignment>svg{color:var(--accent);flex:0 0 auto}.teacher-check p,.assignment p{font-size:14px}.lesson-note{display:grid;gap:7px;margin-top:16px}.lesson-note>span{display:flex;gap:7px;align-items:center;font-weight:700}.lesson-note textarea{width:100%;min-height:100px;resize:vertical;padding:11px;border:1px solid var(--line);border-radius:6px;background:var(--bg);color:var(--text)}.teacher-panel>small{display:block;margin-top:10px;color:var(--muted)}.pattern-panel{position:relative;display:grid;grid-template-columns:44px 1fr;gap:16px;margin-top:20px;padding:22px;background:var(--surface);border:1px solid var(--line);border-radius:7px}.pattern-panel>svg{padding:9px;width:44px;height:44px;color:var(--brand);background:color-mix(in srgb,var(--brand) 12%,var(--surface));border-radius:6px}.pattern-panel h2{margin:3px 0 5px;font-size:21px}.confidence-bar{height:7px;margin:14px 0 6px;overflow:hidden;background:var(--surface-2);border-radius:3px}.confidence-bar span{display:block;height:100%;background:var(--brand)}.pattern-panel small{color:var(--muted)}.privacy-note{display:flex;align-items:center;gap:6px;margin-top:10px;font-size:13px;color:var(--success)}.diagram-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.diagram-card{min-width:0;padding:22px;background:var(--surface);border:1px solid var(--line);border-radius:7px}.diagram-heading{display:flex;align-items:center;gap:12px;margin-bottom:20px}.diagram-heading>svg{color:var(--brand)}.diagram-heading h2{font-size:21px;margin-top:2px}.diagram-tool{position:relative}.diagram-tool>p{min-height:52px;font-size:14px;margin-top:14px}.segmented{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;padding:4px;background:var(--surface-2);border-radius:6px}.segmented button{min-width:0;padding:7px 4px;border:0;border-radius:4px;background:transparent;color:var(--muted);font-weight:700;cursor:pointer}.segmented button.active{background:var(--surface);color:var(--brand);box-shadow:0 2px 8px #00000014}.venn-svg,.tangent-svg{width:100%;height:auto;max-height:235px;margin-top:10px}.venn-svg circle{stroke:var(--brand);stroke-width:3}.venn-svg text{fill:var(--text);font:700 18px Manrope}.venn-a,.venn-b{fill:color-mix(in srgb,var(--brand) 20%,transparent)}.mode-difference .venn-a{fill:color-mix(in srgb,var(--accent) 55%,transparent)}.mode-difference .venn-b{fill:var(--surface)}.venn-intersection{fill:color-mix(in srgb,var(--warm) 75%,transparent);stroke:none!important}.kmap{display:grid;grid-template-columns:66px repeat(2,minmax(80px,1fr));grid-template-rows:repeat(2,82px);max-width:390px;margin:16px auto}.kmap-axis{grid-row:1 / 3;display:grid;place-items:center;color:var(--muted);font-weight:700}.kmap button{border:1px solid var(--line);background:var(--surface-2);color:var(--text);display:flex;justify-content:space-between;align-items:start;padding:10px;cursor:pointer}.kmap button.active{background:color-mix(in srgb,var(--brand) 20%,var(--surface));box-shadow:inset 0 0 0 2px var(--brand)}.kmap button strong{align-self:center;font-size:24px}.coefficient-inputs{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.coefficient-inputs label{color:var(--muted);font-weight:700}.coefficient-inputs input{width:100%;display:block;margin-top:4px;padding:8px;border:1px solid var(--line);border-radius:5px;color:var(--text);background:var(--bg)}.delta-display{display:grid;place-items:center;padding:22px;margin-top:14px;background:var(--surface-2);border-radius:6px}.delta-display strong{font:800 38px Manrope;color:var(--brand)}.delta-display small{color:var(--muted)}.bhaskara{margin-top:12px;padding:15px;border-left:3px solid var(--accent)}.bhaskara span{color:var(--accent);font-weight:800}.bhaskara strong{display:block;margin:5px 0}.tangent-svg path{fill:none;stroke:var(--brand);stroke-width:4}.tangent-svg .axis{stroke:var(--line);stroke-width:2}.tangent-svg .tangent-line{stroke:var(--accent);stroke-width:3}.tangent-svg circle{fill:var(--warm);stroke:var(--surface);stroke-width:3}.slider-label{display:grid;gap:5px;color:var(--text);font-weight:700}.slider-label input{accent-color:var(--brand)}.diagram-roadmap{margin-top:42px;padding:26px 0;border-top:1px solid var(--line)}.diagram-roadmap h2{font-size:23px;margin-bottom:8px}[data-tag-highlighted=true]{outline:3px solid #e449a3!important;outline-offset:4px;animation:tag-pulse .8s ease-in-out 2}.tag-inspector{position:fixed;z-index:200;right:16px;bottom:16px;width:min(390px,calc(100vw - 32px));max-height:min(560px,calc(100vh - 100px));display:flex;flex-direction:column;overflow:hidden;border:1px solid #e449a3;border-radius:7px;background:var(--surface);box-shadow:0 20px 60px #00000047}.tag-inspector header{display:flex;justify-content:space-between;align-items:center;padding:13px 14px;background:#c72a84;color:#fff}.tag-inspector header div{display:flex;flex-direction:column}.tag-inspector header small{opacity:.8}.tag-inspector button{cursor:pointer}.tag-inspector header button{width:30px;height:30px;display:grid;place-items:center;border:0;background:transparent;color:#fff}.tag-inspector>label{display:flex;align-items:center;gap:8px;margin:10px;padding:8px 10px;border:1px solid var(--line);border-radius:5px}.tag-inspector>label input{min-width:0;flex:1;border:0;outline:0;background:transparent;color:var(--text)}.tag-list{overflow:auto;padding:0 10px 10px}.tag-list>div{display:grid;grid-template-columns:1fr 32px;gap:4px;border-top:1px solid var(--line)}.tag-list button{min-width:0;display:flex;align-items:center;gap:7px;padding:8px 5px;border:0;background:transparent;color:var(--text)}.tag-list button span{overflow:hidden;text-overflow:ellipsis;font:600 11px monospace;white-space:nowrap}.tag-list button:hover{color:#e449a3}.tag-list>div>button:last-child{justify-content:center}@keyframes tag-pulse{50%{outline-offset:8px}}@media(max-width:980px){:root{--sidebar: 0px}.topbar{grid-template-columns:1fr auto}.desktop-search{display:none}.mobile-menu{display:inline-grid}.sidebar{width:min(330px,88vw);transform:translate(-105%);transition:transform .22s ease;box-shadow:var(--shadow)}.sidebar.open{transform:translate(0)}.mobile-search{display:block;margin-bottom:12px}.main-content{margin-left:0}.hero{grid-template-columns:1fr}.hero-visual{min-height:300px}.lesson-grid,.diagram-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.lesson-page{grid-template-columns:1fr}.lesson-toc{position:static}.lesson-toc nav{grid-template-columns:repeat(2,1fr);border-left:0}.lesson-toc nav a{border-left:1px solid var(--line)}.back-link{margin-bottom:12px}}@media(max-width:640px){.topbar{height:64px;padding:0 15px}.sidebar{top:64px}.main-content{padding-top:64px}.page{padding:34px 17px 60px}.hero{min-height:auto;padding-top:10px;gap:34px}.hero-copy h1{font-size:39px}.hero-copy>p{font-size:17px}.hero-visual,.coordinate-grid{min-height:260px}.stats-band{grid-template-columns:1fr;gap:14px;margin-bottom:50px}.stats-band div{border-right:0;border-bottom:1px solid color-mix(in srgb,var(--bg) 20%,transparent);padding-bottom:10px}.stats-band div:last-child{border:0;padding-bottom:0}.lesson-grid,.feature-row,.diagram-grid{grid-template-columns:1fr}.lesson-card{min-height:255px}.section-heading{align-items:start;flex-direction:column}.page-header h1,.lesson-header h1{font-size:35px}.search-box-large button{padding:0 13px}.search-box-large{height:54px}.atlas-filters{grid-template-columns:1fr}.lesson-page{padding:30px 17px 70px}.lesson-toc nav{grid-template-columns:1fr 1fr}.answer-row{flex-direction:column}.answer-row .button{width:100%}.progress-overview{align-items:flex-start;flex-direction:column}.learning-stats{grid-template-columns:1fr}.search-result{flex-direction:column}.confidence{align-self:flex-end}}.practice-modes{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0 8px}.practice-modes .button:disabled{opacity:.55;cursor:not-allowed}.practice-availability{margin-bottom:22px;color:var(--muted);font-size:14px}.curriculum-metrics.area-metrics{grid-template-columns:repeat(3,minmax(0,1fr))}.curriculum-page>.curriculum-area-detail{margin-bottom:20px;border:1px solid var(--line);border-radius:7px;background:var(--surface)}.curriculum-audit-list{display:grid;gap:9px;padding-left:20px}.curriculum-audit-list li{line-height:1.5}.planned-lesson-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 24px;padding-left:22px}.planned-lesson-list li{padding:5px 0}.planned-lesson-list small{display:block;color:var(--muted)}.atlas-filters{grid-template-columns:minmax(0,1fr) minmax(170px,220px) minmax(170px,220px)}.atlas-load-more{display:block;margin:24px auto 0}#aulas-planejadas{scroll-margin-top:100px}.planned-lesson-card{border-style:dashed}.planned-badge{border:1px solid var(--line);border-radius:999px;padding:3px 9px;color:var(--muted);font-size:12px;font-weight:700}.atlas-hero{padding:30px;border:1px solid var(--line);border-radius:12px;background:radial-gradient(circle at 90% 10%,color-mix(in srgb,var(--brand) 20%,transparent),transparent 38%),var(--surface)}.atlas-summary{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.atlas-summary span{display:inline-flex;align-items:center;gap:7px;padding:7px 12px;border:1px solid var(--line);border-radius:999px;color:var(--text);font-size:13px;font-weight:700;background:var(--surface-2)}.atlas-filters-unified{grid-template-columns:minmax(0,1fr) minmax(250px,330px)}.atlas-input-with-icon{display:flex;align-items:center;gap:9px;min-height:42px;padding-left:11px;border:1px solid var(--line);border-radius:6px;background:var(--bg);color:var(--muted)}.atlas-input-with-icon input{min-height:40px;padding-left:0;border:0;outline:0}.atlas-unified-card{min-height:285px;overflow:hidden;position:relative}.atlas-unified-card:before{content:"";position:absolute;inset:0 0 auto;height:4px;background:linear-gradient(90deg,var(--brand),var(--accent))}.atlas-unified-card .lesson-card-top svg{color:var(--brand)}.atlas-unified-card .eyebrow{max-width:calc(100% - 30px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.atlas-unified-card .lesson-meta span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.lesson-empty-canvas{min-height:260px;display:flex;flex-direction:column;justify-content:center;background:radial-gradient(circle at 85% 20%,color-mix(in srgb,var(--brand) 13%,transparent),transparent 35%),var(--surface)}.planned-lesson-page .page-header>a{display:block;width:fit-content;margin-bottom:18px;color:var(--muted)}.planned-lesson-page .page-header>.eyebrow{display:block;margin-bottom:8px}.student-curriculum{max-width:1280px}.curriculum-hero,.curriculum-area-hero,.curriculum-topic-hero{padding:34px;border:1px solid var(--line);border-radius:12px;background:radial-gradient(circle at 88% 12%,color-mix(in srgb,var(--brand) 21%,transparent),transparent 38%),var(--surface)}.curriculum-steps{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:24px;color:var(--muted)}.curriculum-steps span{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:700}.curriculum-steps span b{width:27px;height:27px;display:inline-grid;place-items:center;border:1px solid var(--line);border-radius:50%;background:var(--surface-2)}.curriculum-steps span.active{color:var(--brand)}.curriculum-steps span.active b{border-color:var(--brand);color:#fff;background:var(--brand)}.curriculum-steps span.done{color:var(--success)}.curriculum-steps span.done b{border-color:var(--success);color:#fff;background:var(--success)}.curriculum-steps.compact{margin-top:20px}.curriculum-main-search{max-width:850px;min-height:54px;display:flex;align-items:center;gap:11px;margin:26px auto;padding:0 16px;border:1px solid var(--line);border-radius:9px;background:var(--surface);box-shadow:var(--shadow);color:var(--brand)}.curriculum-main-search input{flex:1;min-width:0;border:0;outline:0;background:transparent;color:var(--text);font-size:16px}.curriculum-stage-section,.curriculum-area-section,.curriculum-topic-section,.curriculum-lessons-section{margin-top:36px}.curriculum-section-title{display:flex;align-items:flex-start;gap:13px;margin-bottom:20px}.curriculum-section-title>svg{flex:0 0 auto;margin-top:4px;color:var(--brand)}.curriculum-section-title h2{margin:3px 0 4px;font-size:27px}.curriculum-stage-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.curriculum-stage-tabs button{min-height:105px;padding:18px;border:1px solid var(--line);border-radius:9px;background:var(--surface);color:var(--text);text-align:left;cursor:pointer;transition:transform .18s ease,border-color .18s ease}.curriculum-stage-tabs button:hover{transform:translateY(-2px);border-color:color-mix(in srgb,var(--brand) 55%,var(--line))}.curriculum-stage-tabs button span,.curriculum-stage-tabs button strong{display:block}.curriculum-stage-tabs button span{margin-bottom:7px;color:var(--brand);font-size:12px;font-weight:800;text-transform:uppercase}.curriculum-stage-tabs button strong{font:700 16px Manrope}.curriculum-stage-tabs button.active{border-color:var(--brand);background:color-mix(in srgb,var(--brand) 11%,var(--surface));box-shadow:inset 0 0 0 1px var(--brand)}.curriculum-area-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.curriculum-area-card{min-height:150px;display:grid;grid-template-columns:42px minmax(0,1fr) 22px;align-items:center;gap:12px;padding:20px;border:1px solid var(--line);border-radius:9px;background:var(--surface);text-decoration:none;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}.curriculum-area-card:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--shadow)}.curriculum-area-card>svg{color:var(--brand)}.curriculum-area-number{width:40px;height:40px;display:grid;place-items:center;border-radius:8px;background:color-mix(in srgb,var(--brand) 13%,var(--surface));color:var(--brand);font:800 14px Manrope}.curriculum-area-card small{color:var(--muted);font-size:11px}.curriculum-area-card h3{margin:6px 0;font-size:18px}.curriculum-area-card p{font-size:13px}.curriculum-breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-bottom:20px;color:var(--muted);font-size:13px}.curriculum-breadcrumb a{color:var(--brand);text-decoration:none}.curriculum-breadcrumb strong{color:var(--text)}.curriculum-topic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.curriculum-topic-card{min-height:105px;display:grid;grid-template-columns:50px minmax(0,1fr) 20px;align-items:center;gap:10px;padding:16px;border:1px solid var(--line);border-radius:8px;background:var(--surface);text-decoration:none}.curriculum-topic-card:hover{border-color:var(--brand);background:color-mix(in srgb,var(--brand) 7%,var(--surface))}.curriculum-topic-card>span{color:var(--brand);font:800 12px Manrope}.curriculum-topic-card h3{margin-bottom:5px;font-size:15px}.curriculum-topic-card p{font-size:12px}.curriculum-topic-card>svg{color:var(--brand)}.curriculum-lesson-grid{align-items:stretch}@media(max-width:640px){.planned-lesson-list,.atlas-filters,.atlas-filters-unified{grid-template-columns:1fr}.atlas-hero{padding:24px 18px}}@media(max-width:980px){.curriculum-stage-tabs,.curriculum-area-grid,.curriculum-topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:640px){.curriculum-hero,.curriculum-area-hero,.curriculum-topic-hero{padding:24px 18px}.curriculum-steps>svg{display:none}.curriculum-steps{align-items:flex-start;flex-direction:column}.curriculum-stage-tabs,.curriculum-area-grid,.curriculum-topic-grid{grid-template-columns:1fr}.curriculum-main-search{margin:20px 0}.curriculum-area-card{min-height:130px}}@media(max-width:640px){.curriculum-metrics.area-metrics{grid-template-columns:1fr}.curriculum-metrics.area-metrics div{border-right:0}}.worked-example-diagram{margin:14px 0 48px;padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:8px}.worked-example-diagram h2{margin:5px 0 8px;font-size:25px}.worked-example-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;padding:0;margin:22px 0 0;list-style:none;counter-reset:none}.worked-example-steps li{position:relative;min-width:0;padding:16px;border:1px solid var(--line);border-radius:7px;background:var(--surface-2)}.worked-example-steps li:not(:last-child):after{content:"→";position:absolute;right:-22px;top:42%;color:var(--brand);font-size:22px;font-weight:700}.worked-example-steps strong{color:var(--brand)}.worked-example-steps p{margin:8px 0 0;overflow-wrap:anywhere}@media(max-width:640px){.worked-example-steps{grid-template-columns:1fr;gap:24px}.worked-example-steps li:not(:last-child):after{content:"↓";right:50%;top:auto;bottom:-25px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}@media(max-width:980px){.curriculum-metrics{grid-template-columns:repeat(3,minmax(0,1fr))}.curriculum-metrics div:nth-child(3){border-right:0}.curriculum-metrics div:nth-child(-n+3){border-bottom:1px solid var(--line)}.curriculum-browser{grid-template-columns:260px minmax(0,1fr)}.curriculum-topic-list{grid-template-columns:1fr}}@media(max-width:640px){.curriculum-metrics{grid-template-columns:1fr 1fr}.curriculum-metrics div{border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.curriculum-metrics div:nth-child(2n){border-right:0}.curriculum-metrics div:last-child{grid-column:1 / -1;border-bottom:0}.curriculum-filters{grid-template-columns:1fr}.curriculum-browser{display:block}.curriculum-area-list{max-height:330px;border-right:0;border-bottom:1px solid var(--line)}.curriculum-area-detail{padding:22px 16px}.curriculum-topic-list li{grid-template-columns:46px minmax(0,1fr)}.curriculum-topic-list li em{display:none}}.diagrams-page{max-width:1480px}.diagrams-hero{position:relative;overflow:hidden;padding:36px;border:1px solid var(--line);border-radius:12px;background:radial-gradient(circle at 85% 0%,color-mix(in srgb,var(--accent) 22%,transparent),transparent 36%),linear-gradient(135deg,color-mix(in srgb,var(--brand) 14%,var(--surface)),var(--surface))}.diagrams-hero:after{content:"";position:absolute;width:220px;height:220px;right:-65px;bottom:-130px;border:1px solid color-mix(in srgb,var(--brand) 35%,transparent);border-radius:50%;box-shadow:0 0 0 32px color-mix(in srgb,var(--brand) 5%,transparent),0 0 0 64px color-mix(in srgb,var(--brand) 4%,transparent);pointer-events:none}.diagrams-hero p{max-width:820px}.diagram-summary{display:flex;align-items:center;flex-wrap:wrap;gap:8px 12px;margin-top:25px;color:var(--muted)}.diagram-summary strong{font-size:21px;color:var(--text)}.diagram-summary span{margin-right:16px;font-size:13px}.diagram-library-tools{position:sticky;z-index:5;top:72px;display:grid;gap:12px;margin:24px 0 32px;padding:14px;border:1px solid var(--line);border-radius:10px;background:color-mix(in srgb,var(--bg) 88%,transparent);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.diagram-search{display:flex;align-items:center;gap:10px;min-height:46px;padding:0 14px;border:1px solid var(--line);border-radius:7px;background:var(--surface);color:var(--muted)}.diagram-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 13%,transparent)}.diagram-search input{flex:1;min-width:0;border:0;outline:0;background:transparent;color:var(--text);font:inherit}.diagram-category-tabs{display:flex;gap:7px;overflow-x:auto;padding-bottom:2px;scrollbar-width:thin}.diagram-category-tabs button,.preset-row button{flex:0 0 auto;min-height:35px;padding:7px 12px;border:1px solid var(--line);border-radius:999px;background:var(--surface);color:var(--muted);font:700 12px/1.2 Manrope,sans-serif;cursor:pointer}.diagram-category-tabs button.active,.preset-row button:hover{border-color:color-mix(in srgb,var(--brand) 60%,var(--line));background:color-mix(in srgb,var(--brand) 14%,var(--surface));color:var(--brand)}.diagram-results-heading{display:flex;align-items:end;justify-content:space-between;margin-bottom:18px}.diagram-results-heading h2{margin-top:3px;font-size:26px}.diagram-results-heading>span{color:var(--muted);font-size:13px}.diagram-workbench-grid{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start}.diagram-workbench-grid .diagram-card{padding:24px;border-radius:12px;box-shadow:0 10px 36px #00000014}.diagram-card-featured{grid-column:1 / -1}.diagram-heading{align-items:flex-start}.diagram-heading .diagram-icon{display:grid;flex:0 0 43px;width:43px;height:43px;place-items:center;border-radius:9px;background:color-mix(in srgb,var(--brand) 13%,var(--surface));color:var(--brand)}.diagram-heading h2{margin:2px 0 4px}.diagram-heading p{color:var(--muted);font-size:13px}.expanded-tool{display:grid;gap:14px}.tool-control-row{display:flex;align-items:end;justify-content:space-between;flex-wrap:wrap;gap:10px}.tool-control-row label{display:grid;gap:5px;color:var(--muted);font-size:12px;font-weight:800}.tool-control-row select,.interval-controls input[type=number]{min-height:38px;padding:7px 30px 7px 10px;border:1px solid var(--line);border-radius:6px;background:var(--surface-2);color:var(--text);font:inherit}.count-stepper{display:flex;align-items:center;gap:10px;min-height:40px;padding:4px;border:1px solid var(--line);border-radius:8px;background:var(--surface-2)}.count-stepper button{display:grid;width:32px;height:32px;place-items:center;border:0;border-radius:6px;background:var(--surface);color:var(--brand);cursor:pointer}.count-stepper button:disabled{opacity:.35;cursor:not-allowed}.count-stepper strong{min-width:92px;text-align:center;font-size:13px}.set-selector,.preset-row{display:flex;flex-wrap:wrap;gap:7px}.set-selector button{width:34px;height:34px;border:2px solid var(--set-color);border-radius:50%;background:transparent;color:var(--muted);font-weight:900;cursor:pointer}.set-selector button.active{background:color-mix(in srgb,var(--set-color) 30%,var(--surface));color:var(--text);box-shadow:0 0 0 3px color-mix(in srgb,var(--set-color) 12%,transparent)}.venn-formula-editor{display:grid;gap:6px}.venn-formula-editor label{color:var(--text);font-size:13px;font-weight:800}.venn-formula-editor input{width:100%;min-height:48px;padding:10px 13px;border:1px solid var(--line);border-radius:8px;outline:0;background:var(--surface-2);color:var(--text);font:800 18px/1.2 Manrope,sans-serif}.venn-formula-editor input:focus{border-color:var(--brand);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 13%,transparent)}.venn-formula-editor input[aria-invalid=true]{border-color:#ef4444}.venn-formula-editor small{color:var(--muted);line-height:1.5}.venn-formula-error{color:#ef4444;font-size:12px;font-weight:800}.venn-presets{padding-bottom:2px;overflow-x:auto;flex-wrap:nowrap}.venn-view-switch{display:inline-flex;gap:4px;padding:4px;border:1px solid var(--line);border-radius:8px;background:var(--surface-2)}.venn-view-switch button{min-height:32px;padding:6px 10px;border:0;border-radius:6px;background:transparent;color:var(--muted);font:800 11px Manrope,sans-serif;cursor:pointer}.venn-view-switch button.active{background:var(--surface);color:var(--brand);box-shadow:0 2px 8px #0000001f}.venn-builder-svg{width:100%;min-height:250px;max-height:360px}.venn-builder-svg.interactive{cursor:crosshair;touch-action:manipulation}.venn-builder-svg .venn-universe{fill:var(--surface-2);stroke:var(--line);stroke-width:2}.venn-builder-svg circle{stroke-width:3;mix-blend-mode:screen}[data-theme=light] .venn-builder-svg circle{mix-blend-mode:multiply}.venn-builder-svg text{fill:var(--text);font:800 16px Manrope;text-anchor:middle;pointer-events:none}.venn-builder-svg .universe-label{text-anchor:start;fill:var(--muted);font-size:13px}.venn-builder-svg .venn-result-region,.venn-builder-svg .venn-paint-guide{pointer-events:none}.venn-builder-svg .venn-paint-guide{fill-opacity:.09}.venn-builder-svg .venn-set-label{font-size:18px;paint-order:stroke;stroke:var(--surface-2);stroke-width:5px;stroke-linejoin:round}.venn-builder-svg .venn-region-label{fill:var(--muted);font-size:8px;paint-order:stroke;stroke:var(--surface-2);stroke-width:3px;stroke-linejoin:round}.venn-builder-svg .venn-region-label.selected{fill:var(--text);font-size:9px}.venn-builder-svg .atomic-map-title{fill:var(--muted);font-size:10px}.venn-builder-svg .atomic-region-cell{fill:color-mix(in srgb,var(--surface-2) 92%,var(--brand));stroke:var(--line);stroke-width:1;transition:opacity .16s ease,stroke .16s ease}.venn-builder-svg .atomic-region-cell.eligible{stroke:color-mix(in srgb,var(--brand) 60%,var(--line))}.venn-builder-svg .atomic-region-cell.ineligible{opacity:.34}.venn-builder-svg .atomic-region-cell.selected{stroke:var(--warm);stroke-width:1.5;opacity:1}.venn-builder-svg .atomic-region-label{fill:var(--muted);font-size:6px;paint-order:stroke;stroke:var(--surface-2);stroke-width:2px}.venn-builder-svg .atomic-region-cell.selected+.atomic-region-label{fill:var(--text)}.venn-region-picker{display:grid;grid-template-columns:repeat(auto-fit,minmax(98px,1fr));gap:7px}.venn-region-picker button{min-height:38px;padding:7px 9px;border:1px solid var(--line);border-radius:7px;background:var(--surface);color:var(--muted);font:800 12px Manrope,sans-serif;cursor:pointer}.venn-region-picker button:hover{border-color:var(--brand);color:var(--brand)}.venn-region-picker button.eligible:not(.active){border-color:color-mix(in srgb,var(--brand) 35%,var(--line))}.venn-region-picker button.active{border-color:var(--warm);background:color-mix(in srgb,var(--warm) 18%,var(--surface));color:var(--text);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--warm) 45%,transparent)}.venn-region-picker button:disabled{opacity:.34;cursor:not-allowed}.venn-region-picker button:disabled:hover{border-color:var(--line);color:var(--muted)}.venn-hatch-legend{display:flex;flex-wrap:wrap;gap:8px;color:var(--muted);font-size:11px;font-weight:700}.venn-hatch-legend span,.venn-hatch-legend button{display:inline-flex;min-height:34px;align-items:center;gap:7px;padding:5px 9px;border:1px solid transparent;border-radius:7px}.venn-hatch-legend button{background:var(--surface);color:var(--muted);font:inherit;cursor:pointer}.venn-hatch-legend button:hover{border-color:color-mix(in srgb,var(--brand) 55%,var(--line));color:var(--text)}.venn-hatch-legend button.active{border-color:var(--brand);background:color-mix(in srgb,var(--brand) 13%,var(--surface));color:var(--text);box-shadow:0 0 0 2px color-mix(in srgb,var(--brand) 10%,transparent)}.venn-hatch-legend i{width:24px;height:14px;border:1px solid var(--line);border-radius:3px;background-color:var(--surface-2)}.venn-hatch-legend .hatch-0{background-image:repeating-linear-gradient(45deg,transparent 0 4px,#8b5cf6 4px 5.5px)}.venn-hatch-legend .hatch-1{background-image:repeating-linear-gradient(-45deg,transparent 0 4px,#2dd4bf 4px 5.5px)}.venn-hatch-legend .hatch-2{background-image:repeating-linear-gradient(90deg,transparent 0 4px,#fb7185 4px 5.5px)}.venn-hatch-legend .hatch-universe{background-image:repeating-linear-gradient(0deg,transparent 0 4px,var(--warm) 4px 5.5px)}.venn-hatch-legend .hatch-3{background-image:repeating-linear-gradient(0deg,transparent 0 4px,#fbbf24 4px 5.5px)}.venn-hatch-legend .hatch-4{background-image:repeating-linear-gradient(25deg,transparent 0 4px,#60a5fa 4px 5.5px)}.venn-hatch-legend .hatch-5{background-image:repeating-linear-gradient(-25deg,transparent 0 4px,#c084fc 4px 5.5px)}.venn-region-picker{max-height:210px;overflow-y:auto;padding-right:3px;scrollbar-width:thin}.diagram-readout{display:flex;align-items:baseline;flex-wrap:wrap;gap:8px 16px;padding:13px 15px;border-left:3px solid var(--brand);border-radius:0 7px 7px 0;background:var(--surface-2)}.diagram-readout strong{color:var(--brand)}.diagram-readout span{font-family:Manrope,sans-serif;font-weight:800}.function-count{padding:8px 11px;border-radius:6px;background:color-mix(in srgb,var(--accent) 12%,var(--surface));color:var(--accent);font-weight:800}.kmap-scroll{overflow-x:auto;padding-bottom:5px}.kmap-advanced{display:grid;min-width:max-content;margin:0 auto;border:1px solid var(--line);border-radius:8px;overflow:hidden}.kmap-corner,.kmap-header{display:grid;min-height:36px;place-items:center;border:1px solid var(--line);background:var(--surface-2);color:var(--muted);font-size:11px;font-weight:800}.kmap-cell{display:flex;min-height:58px;align-items:center;justify-content:space-between;padding:7px;border:1px solid var(--line);background:var(--surface);color:var(--text);cursor:pointer}.kmap-cell small{align-self:flex-start;color:var(--muted)}.kmap-cell strong{font-size:20px}.kmap-cell.value-1{background:color-mix(in srgb,var(--brand) 20%,var(--surface));box-shadow:inset 0 0 0 2px var(--brand)}.kmap-cell.value-x{background:repeating-linear-gradient(135deg,color-mix(in srgb,var(--warm) 18%,var(--surface)) 0 7px,var(--surface) 7px 14px);color:var(--warm)}.kmap-results{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.kmap-results>div{display:grid;gap:3px;min-width:0;padding:11px;border:1px solid var(--line);border-radius:7px;background:var(--surface-2)}.kmap-results span{color:var(--muted);font-size:11px}.kmap-results strong{overflow-wrap:anywhere;font-size:13px}.kmap-results .simplified-function{grid-column:1 / -1;border-color:color-mix(in srgb,var(--brand) 35%,var(--line))}.kmap-results .simplified-function strong{color:var(--brand);font-size:17px}.math-canvas,.unit-circle-svg,.polygon-svg,.graph-svg,.tree-svg,.number-line-svg{width:100%;height:auto;max-height:260px;margin:8px 0}.math-canvas .grid-lines line{stroke:color-mix(in srgb,var(--line) 65%,transparent);stroke-width:1}.math-canvas .axis,.unit-circle-svg .axis,.number-line-svg .axis{stroke:var(--muted);stroke-width:1.5}.math-canvas .function-path{fill:none;stroke:var(--brand);stroke-width:3}.point-accent{fill:var(--warm);stroke:var(--surface);stroke-width:2}.projection{stroke:var(--accent);stroke-width:1.5;stroke-dasharray:5 4}.vector-line{stroke:var(--brand);stroke-width:3}marker path{fill:var(--brand)}.triple-sliders,.double-sliders{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.double-sliders{grid-template-columns:repeat(2,minmax(0,1fr))}.triple-sliders label,.double-sliders label{display:grid;gap:5px;color:var(--muted);font-size:11px;font-weight:700}.triple-sliders input,.double-sliders input{width:100%;accent-color:var(--brand)}.formula-strip{display:flex;align-items:center;justify-content:space-around;flex-wrap:wrap;gap:8px 15px;min-height:48px;padding:10px 13px;border-radius:7px;background:var(--surface-2);font-size:12px}.formula-strip strong{color:var(--brand)}.unit-circle-svg>circle:first-of-type,.polygon-svg>circle:first-of-type{fill:color-mix(in srgb,var(--brand) 5%,transparent);stroke:var(--brand);stroke-width:2}.unit-circle-svg .radius{stroke:var(--brand);stroke-width:3}.unit-circle-svg .angle-arc{fill:none;stroke:var(--warm);stroke-width:3}.polygon-svg polygon{fill:color-mix(in srgb,var(--brand) 18%,transparent);stroke:var(--brand);stroke-width:3}.matrix-builder{display:grid;gap:5px;width:min(100%,460px);margin:18px auto;padding:13px 20px;border-inline:3px solid var(--brand);border-radius:12px}.matrix-builder input{width:100%;min-width:0;height:44px;border:1px solid var(--line);border-radius:5px;background:color-mix(in srgb,var(--brand) calc(var(--magnitude) * 24%),var(--surface-2));color:var(--text);text-align:center;font-weight:800}.number-line-svg line,.number-line-svg circle{stroke:var(--muted);stroke-width:2}.number-line-svg text{fill:var(--muted);text-anchor:middle;font-size:11px}.number-line-svg .interval-line{stroke:var(--brand);stroke-width:7}.number-line-svg .closed{fill:var(--brand);stroke:var(--brand)}.number-line-svg .open{fill:var(--surface);stroke:var(--brand);stroke-width:3}.interval-controls{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.interval-controls label{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:12px}.interval-controls input[type=number]{width:70px;padding-right:5px}.graph-svg line,.tree-svg line{stroke:color-mix(in srgb,var(--brand) 65%,var(--line));stroke-width:2}.graph-svg circle,.tree-svg circle{fill:var(--surface-2);stroke:var(--brand);stroke-width:3}.graph-svg text,.tree-svg text{fill:var(--text);text-anchor:middle;font:700 11px Manrope}.histogram{display:flex;min-height:210px;align-items:end;justify-content:center;gap:3px;padding:15px 15px 0;border-bottom:2px solid var(--muted)}.histogram button{position:relative;display:flex;width:min(48px,11%);min-height:30px;align-items:start;justify-content:center;border:0;border-radius:5px 5px 0 0;background:linear-gradient(180deg,var(--brand),color-mix(in srgb,var(--brand) 55%,var(--accent)));color:#fff;cursor:pointer;transition:height .2s ease}.histogram button span{padding-top:6px;font-weight:800}.histogram button small{position:absolute;bottom:-19px;color:var(--muted)}.histogram+.preset-row{margin-top:25px}@media(max-width:900px){.diagram-workbench-grid{grid-template-columns:1fr}.diagram-card-featured{grid-column:auto}.diagram-library-tools{top:64px}.kmap-results{grid-template-columns:1fr}.kmap-results .simplified-function{grid-column:auto}}@media(max-width:640px){.diagrams-hero{padding:25px 20px}.diagram-summary{display:grid;grid-template-columns:auto 1fr}.diagram-summary span{margin-right:0}.diagram-workbench-grid .diagram-card{padding:18px 14px}.triple-sliders,.double-sliders,.interval-controls{grid-template-columns:1fr}.tool-control-row{align-items:stretch;flex-direction:column}.tool-control-row label,.tool-control-row select{width:100%}.venn-builder-svg{min-height:210px}}.conic-svg,.solid-svg,.transformation-svg,.integral-svg,.sequence-svg,.scatter-svg,.boxplot-svg{width:100%;height:auto;max-height:260px;margin:8px 0}.conic-svg .axis,.transformation-svg .axis,.integral-svg .axis,.scatter-svg .axis{stroke:var(--muted);stroke-width:1.5}.conic-svg circle,.conic-svg ellipse,.conic-svg path{fill:color-mix(in srgb,var(--brand) 12%,transparent);stroke:var(--brand);stroke-width:3}.solid-svg rect,.solid-svg circle,.solid-svg ellipse,.solid-svg path{fill:color-mix(in srgb,var(--brand) 10%,transparent);stroke:var(--brand);stroke-width:2.5}.solid-svg line{stroke:var(--brand);stroke-width:2.5}.solid-svg .dimension{stroke:var(--accent);stroke-dasharray:5 4}.transformation-svg polygon{stroke-width:3}.transformation-svg .original-shape{fill:color-mix(in srgb,var(--muted) 8%,transparent);stroke:var(--muted);stroke-dasharray:5 4}.transformation-svg .transformed-shape{fill:color-mix(in srgb,var(--brand) 18%,transparent);stroke:var(--brand)}.integral-svg rect{fill:color-mix(in srgb,var(--brand) 25%,transparent);stroke:var(--brand);stroke-width:1}.integral-svg path{fill:none;stroke:var(--warm);stroke-width:3}.sequence-svg line{stroke:color-mix(in srgb,var(--brand) 55%,var(--line));stroke-width:2}.sequence-svg circle{fill:var(--brand);stroke:var(--surface);stroke-width:2}.scatter-svg circle{fill:var(--brand);opacity:.9}.scatter-svg .regression{stroke:var(--warm);stroke-width:3}.boxplot-svg .whisker{stroke:var(--muted);stroke-width:3}.boxplot-svg rect{fill:color-mix(in srgb,var(--brand) 18%,var(--surface));stroke:var(--brand);stroke-width:3}.boxplot-svg .median{stroke:var(--warm);stroke-width:4}.boxplot-svg .outlier{fill:var(--warm);stroke:var(--surface);stroke-width:2}.pascal-triangle{display:grid;gap:5px;overflow-x:auto;padding:15px 0}.pascal-triangle>div{display:flex;min-width:max-content;justify-content:center;gap:5px}.pascal-triangle span{display:grid;min-width:32px;height:30px;place-items:center;border:1px solid color-mix(in srgb,var(--brand) 35%,var(--line));border-radius:5px;background:color-mix(in srgb,var(--brand) 9%,var(--surface));color:var(--text);font-size:11px;font-weight:800}.truth-table-scroll{max-height:330px;overflow:auto;border:1px solid var(--line);border-radius:8px}.truth-table{width:100%;border-collapse:collapse;text-align:center}.truth-table th,.truth-table td{padding:7px;border:1px solid var(--line)}.truth-table th{position:sticky;top:0;background:var(--surface-2);color:var(--brand)}.truth-table .true-cell{background:color-mix(in srgb,var(--brand) 18%,var(--surface));color:var(--brand);font-weight:900}.hasse-svg,.bode-svg,.vector-field-svg,.polar-svg,.chart-svg,.triangle-centers-svg{width:100%;height:auto;max-height:270px;margin:8px 0}.hasse-svg line{stroke:var(--muted);stroke-width:2}.hasse-svg circle{fill:var(--surface-2);stroke:var(--brand);stroke-width:3}.hasse-svg text{fill:var(--text);text-anchor:middle;font:800 11px Manrope}.fractal-canvas{width:100%;height:auto;max-height:300px;border:1px solid var(--line);border-radius:8px;image-rendering:auto}.bode-svg .axis{stroke:var(--line);stroke-width:1.5}.bode-svg path{fill:none;stroke-width:3}.bode-svg .magnitude{stroke:var(--brand)}.bode-svg .phase{stroke:var(--accent)}.bode-svg text{fill:var(--muted);font-size:11px}.vector-field-svg line{stroke:var(--brand);stroke-width:2}.vector-field-svg marker path{fill:var(--brand)}.polar-svg>circle{fill:none;stroke:var(--line);stroke-width:1.5}.polar-svg .axis{stroke:var(--line)}.polar-svg polyline{fill:none;stroke:var(--brand);stroke-width:2.5}.chart-svg rect{fill:var(--brand);opacity:.85}.chart-svg polyline{fill:none;stroke:var(--brand);stroke-width:4}.chart-svg circle{fill:var(--warm)}.chart-svg .slice{stroke:var(--surface);stroke-width:2}.chart-svg .slice-0{fill:var(--brand)}.chart-svg .slice-1{fill:var(--accent)}.chart-svg .slice-2{fill:var(--warm)}.chart-svg .slice-3{fill:#60a5fa}.chart-svg .slice-4{fill:#c084fc}.chart-values{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:5px}.chart-values label{display:grid;gap:3px;color:var(--muted);font-size:11px;text-align:center}.chart-values input{width:100%;min-width:0;padding:7px 3px;border:1px solid var(--line);border-radius:5px;background:var(--surface-2);color:var(--text);text-align:center}.triangle-centers-svg polygon{fill:color-mix(in srgb,var(--brand) 10%,transparent);stroke:var(--brand);stroke-width:3}.triangle-centers-svg line{stroke:var(--muted);stroke-width:1.5;stroke-dasharray:5 4}.triangle-centers-svg .center-point{fill:var(--warm);stroke:var(--surface);stroke-width:2}.triangle-centers-svg text{fill:var(--warm);font:700 10px Manrope}.triangle-centers-svg .auxiliary-circle{fill:none;stroke:var(--accent);stroke-width:1.5;stroke-dasharray:4 4}.account-page{max-width:920px}.account-page .page-header{margin-inline:auto;text-align:center}.auth-card,.account-setup-note,.account-profile-card{border:1px solid var(--line);border-radius:12px;background:var(--surface);box-shadow:var(--shadow)}.auth-card{width:min(100%,510px);margin:0 auto;padding:28px}.auth-tabs{display:grid;grid-template-columns:1fr 1fr;gap:5px;margin-bottom:22px;padding:4px;border-radius:8px;background:var(--surface-2)}.auth-tabs button{min-height:40px;border:0;border-radius:6px;background:transparent;color:var(--muted);font-weight:800;cursor:pointer}.auth-tabs button.active{background:var(--surface);color:var(--brand);box-shadow:0 3px 10px #00000014}.google-auth-button{display:flex;width:100%;min-height:48px;align-items:center;justify-content:center;gap:10px;border:1px solid var(--line);border-radius:7px;background:var(--surface);color:var(--text);font-weight:800;cursor:pointer}.google-auth-button span{display:grid;width:25px;height:25px;place-items:center;border-radius:50%;background:#fff;color:#4285f4;box-shadow:0 1px 5px #00000029}.google-auth-button:hover{border-color:var(--brand)}.google-auth-button:disabled,.auth-card button:disabled{opacity:.55;cursor:wait}.auth-divider{display:flex;align-items:center;gap:12px;margin:20px 0;color:var(--muted);font-size:12px}.auth-divider:before,.auth-divider:after{height:1px;flex:1;background:var(--line);content:""}.auth-card form{display:grid;gap:14px}.auth-card label{display:grid;gap:6px;color:var(--text);font-size:13px;font-weight:800}.auth-card input{min-height:46px;padding:9px 11px;border:1px solid var(--line);border-radius:7px;background:var(--surface-2);color:var(--text);outline:0}.auth-card input:focus{border-color:var(--brand);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 12%,transparent)}.auth-submit{width:100%;justify-content:center;margin-top:4px}.auth-link{width:fit-content;margin:0 auto;border:0;background:transparent;color:var(--brand);font-weight:800;cursor:pointer}.auth-feedback{padding:10px 12px;border-radius:6px;font-size:13px;font-weight:700}.auth-feedback.error{background:color-mix(in srgb,var(--danger) 10%,var(--surface));color:var(--danger)}.auth-feedback.success{background:color-mix(in srgb,var(--success) 10%,var(--surface));color:var(--success)}.auth-privacy{display:flex;align-items:center;justify-content:center;gap:7px;margin-top:20px;font-size:12px}.account-setup-note{display:flex;max-width:620px;align-items:flex-start;gap:15px;margin:0 auto;padding:24px;border-left:4px solid var(--warm)}.account-setup-note svg{flex:0 0 auto;color:var(--warm)}.account-setup-note h2{margin-bottom:6px;font-size:19px}.account-profile-card{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:20px;padding:28px}.account-profile-card h1{margin:3px 0;font-size:30px}.account-avatar{display:grid;width:70px;height:70px;place-items:center;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;font:800 29px Manrope}.account-benefits{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:20px}.account-benefits>div{display:grid;gap:8px;padding:20px;border:1px solid var(--line);border-radius:9px;background:var(--surface)}.account-benefits svg{color:var(--brand)}.account-benefits p{font-size:13px}@media(max-width:760px){.account-chip span{display:none}.account-chip{width:40px;justify-content:center;padding:0}.account-profile-card{grid-template-columns:auto 1fr}.account-profile-card .button{grid-column:1 / -1;justify-content:center}.account-benefits{grid-template-columns:1fr}}