@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{text-indent:0;text-rendering:auto;font:1.21em/1.2 KaTeX_Main,Times New Roman,serif;position:relative}.katex *{border-color:currentColor;-ms-high-contrast-adjust:none!important}.katex .katex-version:after{content:"0.17.0"}.katex .katex-mathml{clip-path:inset(50%);border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.katex .katex-html>.newline{display:block}.katex .base{white-space:nowrap;width:min-content;position:relative}.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;table-layout:fixed;display:inline-table}.katex .vlist-r{display:table-row}.katex .vlist{vertical-align:bottom;display:table-cell;position:relative}.katex .vlist>span{height:0;display:block;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{width:0;overflow:hidden}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{vertical-align:bottom;width:2px;min-width:2px;font-size:1px;display:table-cell}.katex .vbox{flex-direction:column;align-items:baseline;display:inline-flex}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{flex-direction:row;display:inline-flex}.katex .thinbox{width:0;max-width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;width:100%;display:inline-block}.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{line-height:0;display:inline}.katex .clap,.katex .llap,.katex .rlap{width:0;position:relative}.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;width:100%;display:inline-block}.katex .hdashline{border-bottom-style:dashed;width:100%;display:inline-block}.katex .sqrt>.root{margin-left:.277778em;margin-right:-.555556em}.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:.833333em}.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:1.16667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.33333em}.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:1.66667em}.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:3.45667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.14667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.714286em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.857143em}.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:1.14286em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.28571em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.42857em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.71429em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.05714em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.46857em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.96286em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.55429em}.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:.555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.888889em}.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:1.11111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.33333em}.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:2.30444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.76444em}.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:.416667em}.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:.583333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.666667em}.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:.833333em}.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:1.72833em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.07333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.347222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.416667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.486111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.555556em}.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:.694444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.833333em}.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:1.44028em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.72778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.289352em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.347222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.405093em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.520833em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.578704em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.694444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.833333em}.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:1.20023em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.43981em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.24108em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.289296em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.385728em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.433944em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.48216em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.578592em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.694311em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.833173em}.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:1.19961em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.200965em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.241158em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.281351em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.321543em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.361736em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.401929em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.482315em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.694534em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.833601em}.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{width:.12em;display:inline-block}.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{min-width:1px;display:inline-block}.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;height:inherit;width:100%;display:block;position:absolute}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;min-width:0;max-width:none;min-height:0;max-height:none}.katex .stretchy{width:100%;display:block;position:relative;overflow:hidden}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{width:100%;position:relative;overflow:hidden}.katex .halfarrow-left{width:50.2%;position:absolute;left:0;overflow:hidden}.katex .halfarrow-right{width:50.2%;position:absolute;right:0;overflow:hidden}.katex .brace-left{width:25.1%;position:absolute;left:0;overflow:hidden}.katex .brace-center{width:50%;position:absolute;left:25%;overflow:hidden}.katex .brace-right{width:25.1%;position:absolute;right:0;overflow:hidden}.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{box-sizing:border-box;border:.04em solid}.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{box-sizing:border-box;border-top:.049em solid;border-right:.049em solid;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{text-align:left;display:inline-block;position:absolute;right:calc(50% + .3em)}.katex .cd-label-right{text-align:right;display:inline-block;position:absolute;left:calc(50% + .3em)}.katex-display{text-align:center;margin:1em 0;display:block}.katex-display>.katex{text-align:center;white-space:nowrap;display:block}.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{text-align:left;padding-left:2em}body{counter-reset:katexEqnNo mmlEqnNo}:root{--bg:#07120d;--bg-elev:#0e1d16;--bg-card:#112620;--bg-deep:#050d09;--line:#22c55e24;--line-strong:#22c55e47;--ink:#e8f5ee;--ink-dim:#9db0a6;--ink-mute:#6b8076;--brand:#1fd685;--brand-deep:#16a86a;--brand-soft:#1fd6851f;--brand-glow:#1fd68559;--accent-home:#31dc92;--accent-trail:#67c8ff;--accent-tasks:#ffbd59;--accent-lessons:#b7a0ff;--accent-materials:#4fd7d1;--accent-progress:#f7d663;--accent-messages:#ff92b7;--warn:#f5b94a;--danger:#ff7676;--radius-sm:10px;--radius:16px;--radius-lg:24px;--max:1220px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{color:var(--ink);background:var(--bg);font-family:var(--font-body), Inter, system-ui, sans-serif;-webkit-font-smoothing:antialiased;margin:0}button,input,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{color:inherit}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}h1,h2,h3,p{margin-top:0}::selection{color:#03120a;background:var(--brand)}:focus-visible{outline:2px solid var(--brand);outline-offset:3px}.skip-link{z-index:1000;color:#04120a;background:var(--brand);padding:10px 14px;position:fixed;top:10px;left:10px;transform:translateY(-160%)}.skip-link:focus{transform:translateY(0)}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.eyebrow{color:var(--brand);font-family:var(--font-mono), monospace;letter-spacing:.13em;text-transform:uppercase;margin-bottom:14px;font-size:.72rem;font-weight:600;line-height:1.5}.quanta-brand{align-items:center;gap:11px;width:fit-content;display:inline-flex}.quanta-brand img{object-fit:contain;width:40px;height:40px}.quanta-brand>span{gap:1px;display:grid}.quanta-brand strong{color:var(--ink);font-family:var(--font-display), sans-serif;letter-spacing:.16em;font-size:1.02rem;font-weight:800;line-height:1}.quanta-brand small{color:var(--ink-mute);font-family:var(--font-mono), monospace;letter-spacing:.13em;font-size:.52rem;line-height:1.25}.primary-action,.secondary-action{min-height:48px;font-family:var(--font-display), sans-serif;letter-spacing:.045em;cursor:pointer;border-radius:3px;justify-content:center;align-items:center;gap:18px;padding:0 20px;font-size:.78rem;font-weight:800;display:inline-flex}.primary-action{border:1px solid var(--brand);color:#03140b;background:var(--brand);box-shadow:0 0 #1fd68500}.primary-action:hover:not(:disabled){background:#35e99a;transform:translateY(-1px);box-shadow:0 0 26px #1fd6852b}.primary-action:disabled{color:var(--ink-mute);cursor:not-allowed;background:#9db0a617;border-color:#9db0a629}.secondary-action{border:1px solid var(--line-strong);color:var(--ink-dim);background:0 0}.secondary-action:hover{border-color:var(--brand);color:var(--ink);background:var(--brand-soft)}.secondary-action.is-disabled{color:var(--ink-mute);cursor:default;opacity:.72;background:#9db0a60a}.landing-shell{background:linear-gradient(#22c55e09 1px, transparent 1px), linear-gradient(90deg, #22c55e09 1px, transparent 1px), radial-gradient(circle at 78% 25%, #1fd6851a, transparent 27%), var(--bg);background-size:50px 50px,50px 50px,auto,auto;min-height:100vh;overflow:hidden}.landing-header,.portal-header,.teacher-header{width:min(var(--max), calc(100% - 48px));margin:0 auto}.landing-header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;height:86px;display:flex}.landing-nav{color:var(--ink-dim);align-items:center;gap:28px;font-size:.78rem;font-weight:600;display:flex}.landing-nav a:hover{color:var(--brand)}.main-site-link{color:#b9dff2;min-height:42px;font-family:var(--font-mono), monospace;letter-spacing:.035em;text-transform:uppercase;white-space:nowrap;background:#67c8ff0f;border:1px solid #67c8ff4d;border-radius:999px;align-items:center;gap:8px;padding:4px 12px 4px 6px;font-size:.61rem;font-weight:600;line-height:1;display:inline-flex}.main-site-link:hover,.main-site-link:focus-visible{color:#e4f7ff;background:#67c8ff1f;border-color:#67c8ffb8;outline:none}.main-site-link-icon{color:#67c8ff;background:#67c8ff1f;border-radius:50%;flex:0 0 30px;place-items:center;width:30px;height:30px;font-size:.82rem;display:grid}.main-site-link-short{display:none}.sync-status{border-left:1px solid var(--line);color:var(--ink-mute);font-family:var(--font-mono), monospace;letter-spacing:.04em;text-transform:uppercase;align-items:center;gap:8px;padding-left:20px;font-size:.65rem;display:flex}.sync-status i,.level-chip i{background:var(--brand);width:7px;height:7px;box-shadow:0 0 12px var(--brand-glow);content:"";border-radius:50%;display:inline-block}.landing-hero{width:min(var(--max), calc(100% - 48px));grid-template-columns:minmax(0,1.02fr) minmax(360px,.98fr);align-items:center;gap:clamp(48px,8vw,120px);min-height:680px;margin:0 auto;padding:72px 0 84px;display:grid}.landing-copy{z-index:2;position:relative}.landing-copy h1{max-width:760px;font-family:var(--font-display), sans-serif;letter-spacing:-.06em;margin-bottom:26px;font-size:clamp(3.2rem,6.2vw,5.85rem);font-weight:800;line-height:.98}.landing-copy h1 em{color:var(--brand);font-style:normal}.hero-lede{max-width:630px;color:var(--ink-dim);margin-bottom:34px;font-size:clamp(1rem,1.5vw,1.17rem);line-height:1.75}.access-gate{max-width:600px;margin:0}.access-gate>label{color:var(--ink-mute);font-family:var(--font-mono), monospace;letter-spacing:.12em;margin-bottom:9px;font-size:.63rem;font-weight:600;display:block}.access-row{border:1px solid var(--line-strong);background:#0e1d16e0;padding:5px;display:flex;box-shadow:0 20px 70px #0003}.access-row:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px #1fd68514}.access-row input{min-width:0;color:var(--ink);font-family:var(--font-mono), monospace;letter-spacing:.04em;text-transform:uppercase;background:0 0;border:0;outline:none;flex:1;padding:0 17px;font-size:.82rem}.access-row input::placeholder{color:var(--ink-mute)}.access-row button{border:1px solid var(--brand);color:#03140b;background:var(--brand);min-height:50px;font-family:var(--font-display), sans-serif;letter-spacing:.05em;cursor:pointer;border-radius:1px;padding:0 21px;font-size:.71rem;font-weight:800}.access-row button:hover:not(:disabled){background:#37e99c}.access-row button:disabled{opacity:.65}.form-error{color:#ff9797;margin:10px 0 0;font-size:.78rem}.access-hint{color:var(--ink-mute);margin:10px 0 0;font-size:.7rem}.access-hint button{color:var(--brand);font-size:inherit;cursor:pointer;background:0 0;border:0;padding:0;font-weight:700}.landing-footnote{color:var(--ink-mute);flex-wrap:wrap;gap:10px 22px;margin-top:17px;font-size:.72rem;display:flex}.landing-footnote span:before{color:var(--brand);content:"·";margin-right:7px}.landing-guide{z-index:1;border:1px solid var(--line-strong);background:linear-gradient(#22c55e0b 1px,#0000 1px) 0 0/34px 34px,linear-gradient(90deg,#22c55e0b 1px,#0000 1px) 0 0/34px 34px,radial-gradient(circle at 88% 12%,#1fd68521,#0000 30%),linear-gradient(155deg,#112620f7,#06100bf7);border-radius:2px;padding:clamp(28px,3.2vw,42px);position:relative;overflow:hidden;box-shadow:0 30px 90px #0000004d,0 0 60px #1fd6850b}.landing-guide-topline{color:var(--brand);font-family:var(--font-mono), monospace;letter-spacing:.13em;text-transform:uppercase;align-items:center;gap:9px;margin:0 0 24px;font-size:.65rem;font-weight:700;display:flex}.landing-guide-topline:before{background:var(--brand);width:8px;height:8px;box-shadow:0 0 14px var(--brand-glow);content:"";border-radius:50%;flex:0 0 8px}.landing-guide-intro{margin-bottom:28px}.landing-guide-intro h2{font-family:var(--font-display), sans-serif;letter-spacing:-.04em;margin:0 0 10px;font-size:clamp(1.75rem,3vw,2.45rem);line-height:1.08}.landing-guide-intro p{max-width:46ch;color:var(--ink-dim);margin:0;font-size:.94rem;line-height:1.7}.landing-guide-steps{gap:10px;margin:0 0 24px;padding:0;list-style:none;display:grid}.landing-guide-step{--guide-accent:#67c8ff;border:1px solid var(--line);background:#050f0a94;grid-template-columns:42px minmax(0,1fr);align-items:center;gap:14px;min-height:68px;padding:11px 14px;display:grid}.landing-guide-step:nth-child(2){--guide-accent:#f7d663}.landing-guide-step:nth-child(3){--guide-accent:#b7a0ff}.landing-guide-number{border:1px solid color-mix(in srgb, var(--guide-accent) 62%, transparent);width:38px;height:38px;color:var(--guide-accent);background:color-mix(in srgb, var(--guide-accent) 9%, transparent);font-family:var(--font-mono), monospace;border-radius:50%;place-items:center;font-size:.72rem;font-weight:800;display:grid}.landing-guide-step h3,.landing-guide-step strong{color:var(--ink);margin:0 0 3px;font-size:.88rem;line-height:1.35;display:block}.landing-guide-step p{color:var(--ink-mute);margin:0;font-size:.82rem;line-height:1.55}.landing-guide-cta{border:1px solid var(--brand);color:#03140b;background:var(--brand);width:100%;min-height:52px;font-family:var(--font-display), sans-serif;letter-spacing:.045em;justify-content:space-between;align-items:center;padding:0 18px;font-size:.76rem;font-weight:800;display:flex}.landing-guide-cta:hover{color:#03140b;background:#37e99c}.landing-guide-cta:focus-visible{outline-offset:3px;outline:3px solid #67c8ff73}.landing-guide-help{color:var(--ink-mute);text-align:center;margin:14px 0 0;font-size:.78rem;line-height:1.55}.landing-guide-help strong,.landing-guide-help a{color:var(--ink-dim)}.landing-metrics{width:min(var(--max), calc(100% - 48px));border-top:1px solid var(--line);border-bottom:1px solid var(--line);grid-template-columns:repeat(3,1fr);margin:0 auto;display:grid}.landing-metrics>div{border-right:1px solid var(--line);align-items:center;gap:18px;padding:25px 28px;display:flex}.landing-metrics>div:last-child{border-right:0}.landing-metrics strong{color:var(--brand);font-family:var(--font-mono), monospace;font-size:.68rem}.landing-metrics span{font-family:var(--font-display), sans-serif;font-size:.82rem;font-weight:700}.method-section{width:min(var(--max), calc(100% - 48px));margin:0 auto;padding:120px 0}.method-heading{grid-template-columns:1fr 1fr;column-gap:48px;margin-bottom:60px;display:grid}.method-heading .eyebrow{grid-column:1/-1}.method-heading h2,.landing-cta h2{font-family:var(--font-display), sans-serif;letter-spacing:-.05em;margin:0;font-size:clamp(2rem,4vw,3.55rem);line-height:1.06}.method-heading>p:last-child{color:var(--ink-dim);align-self:end;margin:0;line-height:1.75}.method-flow{border-top:1px solid var(--line-strong);border-bottom:1px solid var(--line-strong);grid-template-columns:repeat(4,1fr);display:grid}.method-flow article{border-right:1px solid var(--line);min-height:300px;padding:30px 24px;position:relative}.method-flow article:last-child{border-right:0}.method-flow article>span{color:var(--ink-mute);font-family:var(--font-mono), monospace;font-size:.62rem}.method-flow article>i{border:1px solid var(--line-strong);width:52px;height:52px;color:var(--brand);background:var(--brand-soft);border-radius:50%;place-items:center;margin:40px 0 28px;font-style:normal;display:grid}.method-flow h3{font-family:var(--font-display), sans-serif;margin-bottom:12px;font-size:1rem}.method-flow p{color:var(--ink-mute);margin:0;font-size:.82rem;line-height:1.7}.landing-cta{width:min(var(--max), calc(100% - 48px));border:1px solid var(--line-strong);background:linear-gradient(100deg, var(--bg-card), #0e1d168c);justify-content:space-between;align-items:center;gap:32px;margin:0 auto 80px;padding:46px;display:flex}.landing-cta h2{max-width:700px;font-size:clamp(1.8rem,3.5vw,3rem)}.landing-cta>a{color:#03140b;background:var(--brand);justify-content:space-between;align-items:center;min-width:220px;min-height:54px;padding:0 18px;font-size:.75rem;font-weight:800;display:flex}.landing-footer{width:min(var(--max), calc(100% - 48px));border-top:1px solid var(--line);color:var(--ink-mute);justify-content:space-between;align-items:center;gap:24px;margin:0 auto;padding:34px 0 50px;font-size:.72rem;display:flex}.landing-footer p{margin:0}.landing-footer-site{color:var(--ink-dim);font-family:var(--font-mono), monospace;letter-spacing:.03em}.student-app{background:linear-gradient(#22c55e06 1px, transparent 1px), linear-gradient(90deg, #22c55e06 1px, transparent 1px), var(--bg);background-size:56px 56px;min-height:100vh;padding-bottom:70px}.portal-header{justify-content:space-between;align-items:center;height:76px;display:flex}.portal-stats{align-items:center;gap:20px;display:flex}.portal-stats>span:not(.student-mini-avatar){color:var(--ink-dim);align-items:center;gap:6px;font-size:.76rem;display:flex}.portal-stats b{color:var(--brand);font-weight:500}.portal-stats small{color:var(--ink-mute);text-transform:uppercase;font-size:.62rem}.student-mini-avatar,.teacher-avatar{border:1px solid var(--line-strong);width:38px;height:38px;color:var(--brand);background:var(--brand-soft);font-family:var(--font-display), sans-serif;border-radius:50%;place-items:center;font-weight:800;display:grid}.level-chip{border:1px solid color-mix(in srgb, var(--level-color,var(--brand)) 35%, transparent);background:color-mix(in srgb, var(--level-color,var(--brand)) 8%, transparent);font-family:var(--font-mono), monospace;letter-spacing:.05em;text-transform:uppercase;border-radius:999px;align-items:center;padding:7px 11px;color:var(--ink-dim)!important;gap:8px!important;font-size:.6rem!important;display:inline-flex!important}.level-chip i{background:var(--level-color,var(--brand));box-shadow:0 0 12px color-mix(in srgb, var(--level-color,var(--brand)) 40%, transparent)}.level-chip.large{min-height:40px;padding:0 15px}.portal-tabs{z-index:20;border-top:1px solid var(--line);border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#07120de6;justify-content:center;gap:5px;display:flex;position:sticky;top:0}.portal-tabs button{min-height:52px;color:var(--ink-mute);cursor:pointer;background:0 0;border:0;border-bottom:2px solid #0000;align-items:center;gap:8px;padding:0 18px;font-size:.73rem;font-weight:600;display:flex}.portal-tabs button span{color:currentColor;font-family:var(--font-mono), monospace}[data-accent=home]{--section-accent:var(--accent-home)}[data-accent=trail]{--section-accent:var(--accent-trail)}[data-accent=tasks]{--section-accent:var(--accent-tasks)}[data-accent=lessons]{--section-accent:var(--accent-lessons)}[data-accent=materials]{--section-accent:var(--accent-materials)}[data-accent=progress]{--section-accent:var(--accent-progress)}[data-accent=messages]{--section-accent:var(--accent-messages)}.tab-icon{border:1px solid color-mix(in srgb, var(--section-accent,var(--brand)) 32%, transparent);background:color-mix(in srgb, var(--section-accent,var(--brand)) 7%, transparent);width:24px;height:24px;font-family:var(--font-mono), monospace;border-radius:7px;flex:0 0 24px;place-items:center;font-size:.67rem;line-height:1;transition:border-color .18s,background .18s,box-shadow .18s;display:grid;color:var(--section-accent,var(--brand))!important}.portal-tabs button:hover,.portal-tabs button[aria-current=page]{border-bottom-color:var(--brand);color:var(--ink);background:linear-gradient(#0000,#1fd6850f)}.portal-tabs button:hover .tab-icon,.portal-tabs button[aria-current=page] .tab-icon,.mobile-nav button[aria-current=page] .tab-icon{border-color:color-mix(in srgb, var(--section-accent,var(--brand)) 65%, transparent);background:color-mix(in srgb, var(--section-accent,var(--brand)) 13%, transparent);box-shadow:0 0 16px color-mix(in srgb, var(--section-accent,var(--brand)) 18%, transparent)}.nav-badge{color:#03140b;background:var(--brand);min-width:18px;height:18px;font-family:var(--font-mono), monospace;border-radius:999px;place-items:center;padding:0 5px;font-size:.55rem;line-height:1;display:grid}.portal-content{width:min(var(--max), calc(100% - 48px));margin:0 auto}.demo-banner{color:#dacb9f;background:#f5b94a0f;border:1px solid #f5b94a38;justify-content:center;align-items:center;gap:12px;margin:18px 0 -8px;padding:10px 14px;font-size:.72rem;display:flex}.demo-banner strong{color:var(--warn)}.student-hero{grid-template-columns:minmax(0,1.55fr) minmax(330px,.68fr);gap:24px;padding:48px 0 28px;display:grid}.student-hero-copy{border:1px solid var(--line);background:radial-gradient(circle at 87% 18%,#1fd6851f,#0000 29%),linear-gradient(140deg,#112620f0,#0a1711eb);min-height:430px;padding:clamp(32px,5vw,58px)}.student-hero-copy h1{max-width:740px;font-family:var(--font-display), sans-serif;letter-spacing:-.055em;margin-bottom:18px;font-size:clamp(2.35rem,4.8vw,4.55rem);font-weight:800;line-height:1.02}.student-hero-copy>p:not(.eyebrow){max-width:690px;color:var(--ink-dim);margin-bottom:28px;line-height:1.75}.hero-actions{flex-wrap:wrap;gap:10px;display:flex}.mode-action{--mode-accent:var(--brand);align-items:center;gap:8px;display:inline-flex;position:relative}.mode-action .action-icon,.exercise-type-icon{border:1px solid color-mix(in srgb, var(--mode-accent) 48%, transparent);width:25px;height:25px;color:var(--mode-accent);background:color-mix(in srgb, var(--mode-accent) 9%, transparent);font-family:var(--font-mono), monospace;border-radius:7px;flex:0 0 25px;place-items:center;font-size:.7rem;line-height:1;display:grid}.mode-action.guided{--mode-accent:#063b24}.mode-action.test{--mode-accent:var(--accent-lessons)}.mode-action.list{--mode-accent:var(--accent-tasks)}.mode-action.drive{--mode-accent:var(--accent-trail);border:1px solid color-mix(in srgb, var(--mode-accent) 36%, var(--line-strong));min-height:48px;color:var(--ink);font-family:var(--font-display), sans-serif;letter-spacing:.045em;white-space:nowrap;background:linear-gradient(105deg,#4285f417,#fbbc0409 48%,#34a85314);border-radius:3px;justify-content:center;padding:0 20px;font-size:.78rem;font-weight:800;transition:border-color .18s,background .18s,box-shadow .18s,transform .18s}.mode-action.drive .action-icon{color:#06140d;background:conic-gradient(from 212deg at 50% 52%, #34a853 0 34%, #fbbc04 34% 67%, #4285f4 67% 100%);border:0;box-shadow:0 0 0 1px #e8f5ee1f,0 4px 14px #4285f429}.mode-action.drive:hover{border-color:color-mix(in srgb, var(--mode-accent) 66%, var(--line-strong));background:linear-gradient(105deg,#4285f424,#fbbc040e 48%,#34a8531f);transform:translateY(-1px);box-shadow:0 0 24px #4285f41a}.mode-action.drive:focus-visible{outline-color:var(--mode-accent);box-shadow:0 0 0 4px #67c8ff21,0 0 24px #4285f41a}.mode-action.guided:not(.primary-action){--mode-accent:var(--accent-trail)}.mode-action.test:hover:not(:disabled),.mode-action.list:hover:not(:disabled){border-color:color-mix(in srgb, var(--mode-accent) 44%, var(--line-strong));background:color-mix(in srgb, var(--mode-accent) 5%, var(--brand-soft))}.mode-action.test:focus-visible,.mode-action.list:focus-visible{outline-color:var(--mode-accent)}.exercise-type-icon[data-type=guided]{--mode-accent:var(--accent-trail)}.exercise-type-icon[data-type=test]{--mode-accent:var(--accent-lessons)}.exercise-type-icon[data-type=free],.exercise-type-icon[data-type=list]{--mode-accent:var(--accent-tasks)}.content-evidence{border-top:1px solid var(--line);align-items:flex-start;gap:12px;margin-top:32px;padding-top:22px;display:flex}.evidence-mark{border:1px solid var(--brand);width:25px;height:25px;color:var(--brand);border-radius:50%;flex:0 0 25px;place-items:center;font-size:.7rem;display:grid}.content-evidence div{gap:5px;display:grid}.content-evidence strong{font-size:.77rem}.content-evidence small{max-width:680px;color:var(--ink-mute);font-size:.66rem;line-height:1.5}.daily-goal-card{border:1px solid var(--line-strong);background:#0e1d16f0;flex-direction:column;align-items:center;min-height:430px;padding:27px;display:flex}.daily-goal-top{width:100%;color:var(--ink-mute);font-family:var(--font-mono), monospace;letter-spacing:.08em;text-transform:uppercase;justify-content:space-between;font-size:.62rem;display:flex}.goal-ring{background:conic-gradient(var(--brand) var(--goal), #1fd6851a 0);border-radius:50%;place-items:center;width:158px;height:158px;margin:35px 0 25px;display:grid;box-shadow:0 0 40px #1fd68514}.goal-ring:before{border:1px solid var(--line);background:var(--bg-elev);content:"";border-radius:50%;width:132px;height:132px;position:absolute}.goal-ring>div{z-index:1;text-align:center;display:grid;position:relative}.goal-ring strong{font-family:var(--font-display), sans-serif;letter-spacing:-.06em;font-size:2.45rem}.goal-ring span{color:var(--ink-mute);font-size:.65rem}.daily-goal-card h2{font-family:var(--font-display), sans-serif;margin-bottom:8px;font-size:1.15rem}.daily-goal-card>p{color:var(--ink-mute);text-align:center;margin-bottom:24px;font-size:.75rem;line-height:1.6}.goal-streak{border-top:1px solid var(--line);align-items:center;gap:12px;width:100%;margin-top:auto;padding-top:19px;display:flex}.goal-streak>span{width:34px;height:34px;color:var(--warn);background:#f5b94a12;border:1px solid #f5b94a47;border-radius:50%;place-items:center;display:grid}.goal-streak div{gap:3px;display:grid}.goal-streak strong{font-size:.73rem}.goal-streak small{color:var(--ink-mute);font-size:.61rem}.mission-section{padding:24px 0 38px}.section-title-row{justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:20px;display:flex}.section-title-row .eyebrow{margin-bottom:7px}.section-title-row h2{font-family:var(--font-display), sans-serif;letter-spacing:-.025em;margin:0;font-size:1.35rem}.section-title-row>span{color:var(--ink-mute);font-family:var(--font-mono), monospace;text-transform:uppercase;font-size:.62rem}.mission-grid{grid-template-columns:repeat(3,1fr);gap:12px;display:grid}.mission-card{border:1px solid var(--line);background:#0e1d16ad;align-items:center;gap:14px;min-width:0;padding:17px;display:flex}.mission-card.is-complete{border-color:var(--line-strong);background:var(--brand-soft)}.mission-icon{border:1px solid var(--line-strong);width:38px;height:38px;color:var(--brand);background:var(--brand-soft);font-family:var(--font-mono), monospace;border-radius:50%;flex:0 0 38px;place-items:center;display:grid}.mission-card>div{flex:1;gap:7px;min-width:0;display:grid}.mission-card strong{text-overflow:ellipsis;white-space:nowrap;font-size:.76rem;overflow:hidden}.mission-card small{color:var(--ink-mute);font-family:var(--font-mono), monospace;font-size:.58rem}.mini-progress,.skill-meter,.level-progress,.practice-progress{background:#9db0a61a;overflow:hidden}.mini-progress{height:3px}.mini-progress span,.skill-meter span,.level-progress span,.practice-progress span{background:var(--brand);height:100%;transition:width .45s;display:block;box-shadow:0 0 10px #1fd68540}.home-dashboard{grid-template-columns:1.2fr 1fr .78fr;gap:16px;padding:12px 0 50px;display:grid}.next-path-card,.last-lesson-card,.ask-card,.skills-panel,.achievements-panel{border:1px solid var(--line);background:#0e1d16c4;min-width:0;padding:26px}.card-label{color:var(--ink-mute);font-family:var(--font-mono), monospace;letter-spacing:.07em;text-transform:uppercase;justify-content:space-between;align-items:center;gap:15px;margin-bottom:23px;font-size:.6rem;display:flex}.card-label button{color:var(--brand);font-size:inherit;cursor:pointer;background:0 0;border:0;padding:0}.path-preview{justify-content:center;align-items:center;margin:30px 0;display:flex}.path-preview i{background:var(--line-strong);width:54px;height:1px}.path-node{border:1px solid var(--line-strong);width:42px;height:42px;color:var(--ink-mute);font-family:var(--font-mono), monospace;border-radius:50%;place-items:center;font-size:.7rem;display:grid}.path-node.done,.path-node.current{border-color:var(--brand);color:var(--brand)}.path-node.current{border-width:3px;box-shadow:0 0 0 7px #1fd6850f}.next-path-card h2,.last-lesson-card h2,.ask-card h2,.transcript-card h2,.empty-stage h2{font-family:var(--font-display), sans-serif;letter-spacing:-.02em;margin-bottom:10px;font-size:1.14rem}.next-path-card p,.last-lesson-card p,.ask-card>p:not(.eyebrow),.transcript-card p,.empty-stage p{color:var(--ink-mute);font-size:.77rem;line-height:1.65}.path-card-actions,.next-path-card>button,.ask-card>button{border:0;border-top:1px solid var(--line);width:100%;color:var(--brand);cursor:pointer;background:0 0;justify-content:space-between;align-items:center;margin-top:22px;padding:17px 0 0;font-size:.74rem;font-weight:700;display:flex}.path-card-actions{gap:18px}.path-card-actions button{color:var(--brand);text-align:left;cursor:pointer;background:0 0;border:0;flex:1;padding:0;font-size:.7rem;font-weight:700}.path-card-actions button:last-child{text-align:right}.lesson-date-badge{border:1px solid var(--line-strong);color:var(--brand);font-family:var(--font-mono), monospace;text-transform:uppercase;margin-bottom:17px;padding:7px 9px;font-size:.58rem;display:inline-block}.topic-chips{flex-wrap:wrap;gap:6px;margin:17px 0;display:flex}.topic-chips span{border:1px solid var(--line);color:var(--ink-dim);background:#1fd6850a;border-radius:999px;padding:6px 9px;font-size:.61rem}.last-lesson-card>small{color:var(--ink-mute);font-size:.61rem}.ask-card{background:radial-gradient(circle at 90% 5%,#1fd68526,#0000 33%),#0e1d16c4;position:relative;overflow:hidden}.ask-orbit{border:1px solid var(--brand);width:52px;height:52px;color:var(--brand);font-family:var(--font-display), sans-serif;border-radius:50%;place-items:center;margin-bottom:34px;font-size:1.15rem;display:grid;box-shadow:0 0 28px #1fd68517}.section-page{min-height:680px;padding:55px 0}.section-page-heading{border-bottom:1px solid var(--line);justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:42px;padding-bottom:28px;display:flex}.section-page-heading h1{font-family:var(--font-display), sans-serif;letter-spacing:-.055em;margin-bottom:8px;font-size:clamp(2.25rem,5vw,4rem);line-height:1}.section-page-heading p:not(.eyebrow){max-width:710px;color:var(--ink-mute);margin:0;font-size:.82rem;line-height:1.65}.page-action-group,.node-actions{align-items:center;gap:10px;display:flex}.page-action-group{flex:none}.learning-path{max-width:850px;margin:0 auto 70px}.learning-node{grid-template-columns:60px 1fr;display:grid}.node-rail{flex-direction:column;align-items:center;display:flex}.node-rail>span{border:2px solid var(--line-strong);width:42px;height:42px;color:var(--ink-mute);background:var(--bg);font-family:var(--font-mono), monospace;border-radius:50%;flex:0 0 42px;place-items:center;font-size:.7rem;display:grid}.node-rail i{background:linear-gradient(var(--line-strong), var(--line));flex:1;width:1px;min-height:52px}.status-strong .node-rail>span,.status-learning .node-rail>span,.status-practicing .node-rail>span,.status-review_due .node-rail>span{border-color:var(--brand);color:var(--brand);box-shadow:0 0 0 6px #1fd6850d}.status-review_due .node-rail>span{border-color:var(--warn);color:var(--warn)}.node-card{border:1px solid var(--line);background:#0e1d16bf;margin:0 0 22px 10px;padding:25px}.status-review_due .node-card{border-color:#f5b94a40}.node-card-top,.node-card-bottom{justify-content:space-between;align-items:center;gap:15px;display:flex}.node-card-top>span{color:var(--brand);font-family:var(--font-mono), monospace;letter-spacing:.08em;text-transform:uppercase;font-size:.59rem}.status-review_due .node-card-top>span{color:var(--warn)}.node-card-top small,.node-card-bottom small{color:var(--ink-mute);font-size:.61rem}.node-card h2{font-family:var(--font-display), sans-serif;margin:20px 0 8px;font-size:1.3rem}.node-card>p{color:var(--ink-mute);font-size:.76rem}.skill-meter{height:5px;margin:23px 0 16px}.node-card-bottom button{color:var(--brand);cursor:pointer;background:0 0;border:0;padding:0;font-size:.7rem;font-weight:700}.node-actions{flex-wrap:wrap;justify-content:flex-end}.task-block{border-top:1px solid var(--line);max-width:960px;margin:0 auto;padding-top:45px}.task-shortcut{border:1px solid var(--line-strong);background:linear-gradient(100deg,#1fd6851a,#0e1d16b8);justify-content:space-between;align-items:center;gap:28px;max-width:850px;margin:6px auto 0;padding:24px 26px;display:flex}.task-shortcut .eyebrow{margin-bottom:6px}.task-shortcut h2{font-family:var(--font-display), sans-serif;margin-bottom:5px;font-size:1.05rem}.task-shortcut p:not(.eyebrow){color:var(--ink-mute);margin:0;font-size:.72rem}.task-shortcut .secondary-action{flex:none}.task-overview{grid-template-columns:minmax(250px,.72fr) minmax(0,1.28fr);gap:14px;max-width:1050px;margin:0 auto 38px;display:grid}.task-summary-card,.task-guide-card{border:1px solid var(--line);background:#0e1d16b8;padding:28px}.task-summary-card>span{color:var(--ink-mute);font-family:var(--font-mono), monospace;letter-spacing:.08em;text-transform:uppercase;font-size:.62rem}.task-summary-card>strong{color:var(--brand);font-family:var(--font-display), sans-serif;letter-spacing:-.08em;margin:10px 0 0;font-size:3.4rem;line-height:1;display:block}.task-summary-card p{color:var(--ink-mute);margin:5px 0 20px;font-size:.72rem}.task-summary-card small{color:var(--ink-mute);font-family:var(--font-mono), monospace;margin-top:8px;font-size:.58rem;display:block}.task-progress-bar{background:#9db0a61a;height:5px;overflow:hidden}.task-progress-bar span{background:var(--brand);height:100%;transition:width .4s;display:block;box-shadow:0 0 12px #1fd6854d}.task-guide-card{background:radial-gradient(circle at 90% 10%,#1fd68521,#0000 30%),#0e1d16b8;align-items:center;gap:22px;display:flex}.task-guide-card>span{border:1px solid var(--brand);width:58px;height:58px;color:var(--brand);background:var(--brand-soft);border-radius:50%;flex:0 0 58px;place-items:center;font-size:1.2rem;display:grid;box-shadow:0 0 30px #1fd68517}.task-guide-card .eyebrow{margin-bottom:7px}.task-guide-card h2{font-family:var(--font-display), sans-serif;margin-bottom:8px;font-size:1.2rem}.task-guide-card p:not(.eyebrow){max-width:600px;color:var(--ink-mute);margin:0;font-size:.76rem;line-height:1.65}.task-block-standalone{border-top:0;max-width:1050px;padding-top:0}.task-list-new{gap:10px;display:grid}.task-list-new article{border:1px solid var(--line);background:#0e1d16a6;grid-template-columns:auto 1fr auto;align-items:center;gap:17px;padding:19px;display:grid}.task-list-new article.is-complete{opacity:.68}.task-check{border:1px solid var(--line-strong);width:28px;height:28px;color:var(--brand);cursor:pointer;background:0 0;border-radius:50%;place-items:center;display:grid}.is-complete .task-check{border-color:var(--brand);background:var(--brand-soft)}.task-list-new h3{font-family:var(--font-display), sans-serif;margin:0 0 6px;font-size:.9rem}.task-title-line{align-items:center;gap:10px;display:flex}.task-title-line h3{min-width:0}.task-title-line>span{border:1px solid var(--line);color:var(--brand);background:var(--brand-soft);font-family:var(--font-mono), monospace;letter-spacing:.04em;text-transform:uppercase;border-radius:999px;padding:4px 7px;font-size:.5rem}.task-list-new p{color:var(--ink-mute);margin:0 0 5px;font-size:.72rem}.task-list-new small{color:var(--ink-mute);font-size:.59rem}.task-start{color:var(--brand);cursor:pointer;background:0 0;border:0;padding:10px;font-size:.7rem;font-weight:700}.lesson-list{border:1px solid var(--line-strong);background:radial-gradient(circle at 92% 0,#1fd68517,#0000 25%),#0a1912c7;margin-top:34px;padding:clamp(20px,4vw,32px)}.lesson-list-header,.lesson-list-heading{justify-content:space-between;align-items:flex-start;gap:24px;display:flex}.lesson-list-header{border-bottom:1px solid var(--line);margin-bottom:22px;padding-bottom:20px}.lesson-list-header .eyebrow,.lesson-list-heading .eyebrow{margin-bottom:7px}.lesson-list-header h2,.lesson-list-heading h2{font-family:var(--font-display), sans-serif;letter-spacing:-.025em;margin-bottom:8px;font-size:clamp(1.25rem,2.2vw,1.65rem)}.lesson-list-header p:not(.eyebrow),.lesson-list-heading p:not(.eyebrow),.lesson-list-description{max-width:680px;color:var(--ink-mute);margin:0;font-size:.74rem;line-height:1.65}.lesson-list-meta,.lesson-exercise-meta{color:var(--ink-mute);font-family:var(--font-mono), monospace;letter-spacing:.035em;text-transform:uppercase;flex-wrap:wrap;align-items:center;gap:7px;font-size:.56rem;display:flex}.lesson-list-meta>span,.lesson-exercise-meta>span{border:1px solid var(--line);background:#07120d8f;border-radius:999px;padding:5px 8px}.lesson-list-body,.lesson-list-items,.lesson-list-exercises{gap:9px;display:grid}.lesson-exercise{--mode-accent:var(--accent-trail);border:1px solid var(--line);background:#07120da8;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:15px;min-width:0;padding:16px 17px;transition:border-color .18s,background .18s,transform .18s;display:grid}.lesson-exercise:hover{border-color:var(--line-strong);background:#0e2018d6;transform:translateY(-1px)}.lesson-exercise[data-type=test]{--mode-accent:var(--accent-lessons)}.lesson-exercise[data-type=free],.lesson-exercise[data-type=list]{--mode-accent:var(--accent-tasks)}.lesson-exercise-copy,.lesson-exercise-content{gap:6px;min-width:0;display:grid}.lesson-exercise h3,.lesson-exercise-title{font-family:var(--font-display), sans-serif;margin:0;font-size:.88rem;line-height:1.35}.lesson-exercise p,.lesson-exercise-prompt{max-width:76ch;color:var(--ink-mute);margin:0;font-size:.7rem;line-height:1.62}.lesson-exercise[data-type=interactive] .lesson-exercise-prompt{-webkit-line-clamp:3;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.lesson-exercise-index{border:1px solid var(--line-strong);width:31px;height:31px;color:var(--brand);font-family:var(--font-mono), monospace;border-radius:50%;flex:0 0 31px;place-items:center;font-size:.62rem;display:grid}.lesson-exercise-actions{justify-content:flex-end;align-items:center;gap:8px;display:flex}.lesson-exercise-action,.lesson-exercise-actions>button{border:1px solid var(--line-strong);min-height:38px;color:var(--brand);background:var(--brand-soft);cursor:pointer;padding:0 13px;font-size:.67rem;font-weight:700}.lesson-exercise-action:hover,.lesson-exercise-actions>button:hover{border-color:var(--brand);background:#1fd68529}.lesson-list-footer,.lesson-list-actions{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:16px;margin-top:18px;padding-top:18px;display:flex}.lesson-list-footer>small,.lesson-list-actions>small{color:var(--ink-mute);font-size:.62rem;line-height:1.5}.lesson-list-history{border:1px solid var(--line);background:#07120d94;margin-top:14px}.lesson-list-history>summary{color:var(--accent-tasks);font-family:var(--font-mono), monospace;text-transform:uppercase;cursor:pointer;padding:16px 18px;font-size:.63rem}.lesson-list-history>div{border-top:1px solid var(--line);display:grid}.lesson-list-history article{justify-content:space-between;align-items:center;gap:18px;padding:15px 18px;display:flex}.lesson-list-history article+article{border-top:1px solid var(--line)}.lesson-list-history article div,.lesson-list-history article small{gap:4px;display:grid}.lesson-list-history article small{color:var(--ink-mute);font-size:.61rem}.lesson-list-history article button{color:var(--brand);cursor:pointer;background:0 0;border:0;font-size:.68rem;font-weight:700}.empty-stage{border:1px dashed var(--line-strong);text-align:center;background:#0e1d165c;place-items:center;min-height:300px;padding:40px;display:grid}.empty-stage>span{border:1px solid var(--line-strong);width:54px;height:54px;color:var(--brand);border-radius:50%;place-items:center;display:grid}.empty-stage h2{margin:18px 0 4px}.empty-stage p{max-width:560px;margin-bottom:20px}.empty-stage button{border:1px solid var(--line-strong);color:var(--brand);background:var(--brand-soft);cursor:pointer;padding:11px 14px}.empty-stage.compact{min-height:230px}.timeline-layout{grid-template-columns:minmax(0,1.5fr) minmax(270px,.62fr);gap:30px;display:grid}.lesson-timeline{display:grid}.lesson-timeline>article{grid-template-columns:38px 1fr;display:grid}.timeline-marker{flex-direction:column;align-items:center;display:flex}.timeline-marker span{border:2px solid var(--brand);border-radius:50%;width:12px;height:12px;margin-top:26px;box-shadow:0 0 0 5px #1fd6850d}.timeline-marker:after{background:var(--line-strong);content:"";flex:1;width:1px}.lesson-timeline>article:last-child .timeline-marker:after{display:none}.timeline-card-new{border:1px solid var(--line);background:#0e1d16b8;margin-bottom:18px;padding:26px}.timeline-card-new h2{font-family:var(--font-display), sans-serif;margin-bottom:10px;font-size:1.18rem}.timeline-card-new>p{color:var(--ink-mute);font-size:.78rem;line-height:1.65}.timeline-actions{border-top:1px solid var(--line);flex-wrap:wrap;gap:8px;margin-top:20px;padding-top:17px;display:flex}.timeline-actions button{border:1px solid var(--line);color:var(--ink-dim);cursor:pointer;background:0 0;padding:9px 11px;font-size:.67rem}.timeline-actions button:first-child{border-color:var(--line-strong);color:var(--brand);background:var(--brand-soft)}.transcript-card{border:1px solid var(--line);background:radial-gradient(circle at 80% 10%, #1fd6851f, transparent 28%), var(--bg-elev);height:fit-content;padding:28px;position:sticky;top:85px}.transcript-icon{border:1px solid var(--line-strong);width:46px;height:46px;color:var(--brand);font-family:var(--font-mono), monospace;border-radius:50%;place-items:center;margin-bottom:30px;display:grid}.materials-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}.material-card{border:1px solid var(--line);background:#0e1d16a6;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:16px;min-width:0;padding:17px;display:grid}.material-card:hover{border-color:var(--line-strong);background:#112620eb;transform:translateY(-1px)}.material-card.is-unavailable{background:#0e1d166b;border-style:dashed}.material-card.is-unavailable:hover{border-color:var(--line);background:#0e1d166b;transform:none}.material-kind{border:1px solid var(--line-strong);width:43px;height:48px;color:var(--brand);background:var(--brand-soft);font-family:var(--font-mono), monospace;place-items:center;font-size:.56rem;display:grid}.material-card>div{gap:6px;min-width:0;display:grid}.material-card strong{text-overflow:ellipsis;white-space:nowrap;font-size:.78rem;overflow:hidden}.material-card small{color:var(--ink-mute);font-size:.61rem}.material-card .material-unavailable-note{color:var(--ink-dim);line-height:1.45}.material-unavailable-status{max-width:92px;color:var(--ink-mute);font-family:var(--font-mono), monospace;text-align:right;text-transform:uppercase;font-size:.5rem;line-height:1.35}.material-card>span:last-child{color:var(--ink-mute)}.materials-grid>.empty-stage{grid-column:1/-1}.progress-summary{grid-template-columns:1.2fr 1fr 1fr;gap:12px;margin-bottom:22px;display:grid}.progress-summary article{border:1px solid var(--line);background:#0e1d16b3;padding:24px}.progress-summary article>span,.progress-summary article>small{color:var(--ink-mute);font-family:var(--font-mono), monospace;text-transform:uppercase;font-size:.6rem;display:block}.progress-summary article>strong{font-family:var(--font-display), sans-serif;letter-spacing:-.06em;margin:13px 0;font-size:2.35rem;display:block}.progress-summary strong small{color:var(--ink-mute);letter-spacing:0;font-size:.76rem}.progress-summary p{color:var(--ink-mute);margin:0;font-size:.69rem;line-height:1.55}.level-progress{height:4px;margin-bottom:12px}.progress-columns{grid-template-columns:1fr 1fr;gap:16px;display:grid}.test-history-panel{grid-column:1/-1}.skill-row{border-bottom:1px solid var(--line);padding:15px 0}.skill-row:last-child{border-bottom:0}.skill-row>div:first-child{justify-content:space-between;align-items:center;gap:12px;font-size:.76rem;display:flex}.skill-row>div:first-child span{color:var(--brand);font-family:var(--font-mono), monospace;font-size:.61rem}.skill-row .skill-meter{margin:10px 0 7px}.skill-row small{color:var(--ink-mute);font-size:.58rem}.achievement-grid{grid-template-columns:1fr 1fr;gap:8px;display:grid}.achievement-grid>div{border:1px solid var(--line);align-items:center;gap:10px;padding:12px;display:flex}.achievement-grid>div.locked{opacity:.44}.achievement-grid>div.unlocked{border-color:var(--line-strong);background:var(--brand-soft)}.achievement-grid>div>span{border:1px solid var(--line-strong);width:31px;height:31px;color:var(--brand);border-radius:50%;flex:0 0 31px;place-items:center;display:grid}.achievement-grid>div>div{gap:3px;display:grid}.achievement-grid strong{font-size:.69rem}.achievement-grid small{color:var(--ink-mute);font-size:.55rem}.muted-copy{color:var(--ink-mute);font-size:.74rem}.conversation-layout{grid-template-columns:minmax(300px,.78fr) minmax(0,1.22fr);gap:16px;display:grid}.message-composer,.message-history{border:1px solid var(--line);background:#0e1d16b8;padding:27px}.message-composer h2{font-family:var(--font-display), sans-serif;margin-bottom:20px;font-size:1.15rem}.category-row{flex-wrap:wrap;gap:7px;margin-bottom:22px;display:flex}.category-row button{border:1px solid var(--line);color:var(--ink-mute);cursor:pointer;background:0 0;border-radius:999px;padding:8px 11px;font-size:.64rem}.category-row button[aria-pressed=true]{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}.message-composer label{color:var(--ink-mute);margin-bottom:8px;font-size:.66rem;display:block}.message-composer textarea{resize:vertical;border:1px solid var(--line-strong);width:100%;color:var(--ink);background:#050f0a9e;border-radius:2px;outline:none;margin-bottom:12px;padding:15px;font-size:.78rem;line-height:1.6}.message-composer textarea:focus{border-color:var(--brand)}.message-composer .primary-action{width:100%}.message-status,.practice-error{color:var(--brand);margin:12px 0 0;font-size:.7rem}.message-history{min-height:420px}.message-history>article{border-bottom:1px solid var(--line);padding:18px 0;position:relative}.message-meta{align-items:center;gap:10px;display:flex}.message-meta>span{border:1px solid var(--line-strong);width:31px;height:31px;color:var(--brand);background:var(--brand-soft);border-radius:50%;place-items:center;font-size:.65rem;display:grid}.message-meta>div{gap:3px;display:grid}.message-meta strong{font-size:.7rem}.message-meta small{color:var(--ink-mute);font-size:.57rem}.message-history article>p{color:var(--ink-dim);margin:14px 0 10px 42px;font-size:.75rem;line-height:1.6}.waiting-reply{color:var(--brand);font-family:var(--font-mono), monospace;text-transform:uppercase;margin-left:42px;font-size:.55rem}.mobile-nav{display:none}.practice-overlay{z-index:100;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#020805d6;place-items:center;padding:24px;display:grid;position:fixed;inset:0;overflow-y:auto}.practice-modal{border:1px solid var(--line-strong);background-color:#091711;background-image:linear-gradient(#22c55e08 1px,#0000 1px),linear-gradient(90deg,#22c55e08 1px,#0000 1px),none;background-position:0 0,0 0,0 0;background-repeat:repeat,repeat,repeat;background-size:42px 42px;background-attachment:scroll,scroll,scroll;background-origin:padding-box,padding-box,padding-box;background-clip:border-box,border-box,border-box;width:min(980px,100%);max-height:calc(100vh - 48px);position:relative;overflow-y:auto;box-shadow:0 30px 120px #0009}.practice-close{z-index:5;border:1px solid var(--line);width:34px;height:34px;color:var(--ink-mute);cursor:pointer;background:#07120de0;border-radius:50%;font-size:1.05rem;position:absolute;top:16px;right:16px}.practice-header{border-bottom:1px solid var(--line);background:#07120db8;justify-content:space-between;align-items:center;gap:20px;padding:20px 68px 18px 28px;display:flex}.practice-header>div{gap:5px;display:grid}.practice-header span{color:var(--brand);font-family:var(--font-mono), monospace;letter-spacing:.07em;text-transform:uppercase;font-size:.66rem}.practice-header small{max-width:570px;color:var(--ink-mute);text-overflow:ellipsis;white-space:nowrap;font-size:.58rem;overflow:hidden}.practice-progress{height:3px}.practice-body{padding:38px clamp(24px,6vw,64px) 28px}.practice-body>h2{max-width:76ch;font-family:var(--font-display), sans-serif;letter-spacing:-.012em;text-wrap:pretty;margin-bottom:26px;font-size:clamp(1.08rem,2vw,1.42rem);line-height:1.62}.prompt-stem{gap:14px;max-width:78ch;margin-bottom:25px;display:grid}.prompt-stem>h2,.prompt-stem .prompt-title{font-family:var(--font-display), sans-serif;letter-spacing:-.012em;text-wrap:pretty;margin:0;font-size:clamp(1.08rem,2vw,1.42rem);line-height:1.55}.prompt-paragraphs{gap:12px;max-width:76ch;display:grid}.prompt-paragraphs p,.prompt-paragraphs>span{color:var(--ink);text-wrap:pretty;margin:0;font-size:clamp(.96rem,1.5vw,1.08rem);line-height:1.72;display:block}.prompt-paragraphs p+p{padding-top:2px}.prompt-original-choices{border:1px solid var(--line);background:#07120d94;gap:8px;margin-top:3px;padding:14px 16px;display:grid}.prompt-original-choices>p,.prompt-original-choices>div,.prompt-original-choices li{color:var(--ink-dim);margin:0;font-size:.84rem;line-height:1.68}.prompt-original-choices>p+p,.prompt-original-choices>div+div,.prompt-original-choices li+li{border-top:1px solid #22c55e17;padding-top:8px}.prompt-original-choices ol,.prompt-original-choices ul{gap:8px;margin:0;padding-left:24px;display:grid}.prompt-original-choices summary{color:var(--brand);cursor:pointer;font-size:.72rem;font-weight:700}.step-card{border-left:3px solid var(--brand);background:#1fd6850f;margin-bottom:20px;padding:16px 18px}.step-card>span{color:var(--brand);font-family:var(--font-mono), monospace;letter-spacing:.07em;text-transform:uppercase;font-size:.56rem}.step-card h3{font-family:var(--font-display), sans-serif;margin:8px 0 6px;font-size:.89rem}.step-card p{color:var(--ink-dim);margin:0;font-size:.76rem;line-height:1.65}.test-silence-note{border:1px solid color-mix(in srgb, var(--accent-lessons) 22%, var(--line));max-width:76ch;color:var(--ink-dim);background:color-mix(in srgb, var(--accent-lessons) 5%, #07120db8);align-items:flex-start;gap:11px;margin:0 0 18px;padding:12px 14px;font-size:.7rem;line-height:1.58;display:flex}.test-silence-note>span:first-child{border:1px solid color-mix(in srgb, var(--accent-lessons) 48%, transparent);width:23px;height:23px;color:var(--accent-lessons);background:color-mix(in srgb, var(--accent-lessons) 8%, transparent);font-family:var(--font-mono), monospace;border-radius:50%;flex:0 0 23px;place-items:center;font-size:.62rem;display:grid}.test-silence-note strong{color:var(--ink);margin-bottom:3px;font-size:.72rem;display:block}.test-silence-note p{color:var(--ink-mute);margin:0}.practice-options{gap:9px;display:grid}.practice-options button{border:1px solid var(--line);width:100%;min-width:0;color:var(--ink-dim);text-align:left;overflow-wrap:anywhere;cursor:pointer;background:#07120dc2;grid-template-columns:auto 1fr auto;align-items:center;gap:13px;padding:14px 16px;line-height:1.5;display:grid}.practice-options button:hover:not(:disabled),.practice-options button.selected{border-color:var(--brand);color:var(--ink);background:var(--brand-soft)}.practice-options button.correct{border-color:var(--brand);background:#1fd6851f}.practice-options button.wrong{background:#ff767612;border-color:#ff767680}.practice-options button>span:first-child{border:1px solid var(--line-strong);width:30px;height:30px;color:var(--brand);font-family:var(--font-mono), monospace;border-radius:50%;place-items:center;font-size:.62rem;display:grid}.practice-options button.wrong>span:first-child{color:var(--danger)}.practice-options button b{color:var(--brand);font-size:1rem}.practice-options button.wrong b{color:var(--danger)}.answer-panel{border:1px solid var(--line-strong);background:var(--brand-soft);margin-top:16px;padding:17px 70px 17px 17px;position:relative}.answer-panel.is-wrong{background:#f5b94a0f;border-color:#f5b94a45}.answer-panel>div{align-items:center;gap:10px;margin-bottom:8px;display:flex}.answer-panel>div>span{color:var(--brand)}.answer-panel.is-wrong>div>span{color:var(--warn)}.answer-panel strong{font-size:.78rem}.answer-panel p,.answer-panel small{color:var(--ink-dim);margin:0;font-size:.71rem;line-height:1.65;display:block}.answer-panel small{color:var(--ink-mute);margin-top:8px}.answer-panel em{color:var(--brand);font-family:var(--font-mono), monospace;font-size:.58rem;font-style:normal;position:absolute;top:15px;right:15px}.practice-footer{border-top:1px solid var(--line);background:#07120db8;justify-content:space-between;align-items:center;gap:20px;padding:18px 28px;display:flex}.practice-footer>span{color:var(--ink-mute);font-size:.64rem}.practice-loading,.practice-empty,.practice-complete{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:520px;padding:55px;display:flex}.practice-loading p,.practice-empty p,.practice-complete p{max-width:520px;color:var(--ink-mute);line-height:1.7}.practice-empty>span,.reward-burst{border:1px solid var(--line-strong);width:88px;height:88px;color:var(--brand);background:var(--brand-soft);border-radius:50%;place-items:center;margin-bottom:28px;font-size:1.75rem;display:grid;box-shadow:0 0 50px #1fd68521}.practice-empty h2,.practice-complete h2{font-family:var(--font-display), sans-serif;letter-spacing:-.045em;margin-bottom:13px;font-size:clamp(1.7rem,4vw,2.65rem)}.completion-stats{grid-template-columns:repeat(3,1fr);gap:8px;width:min(520px,100%);margin:26px 0;display:grid}.completion-stats span{border:1px solid var(--line);color:var(--ink-mute);gap:5px;padding:15px;font-size:.65rem;display:grid}.completion-stats strong{color:var(--ink);font-family:var(--font-display), sans-serif;font-size:1.35rem}.test-review{text-align:left;gap:16px;width:min(720px,100%);margin:26px 0;display:grid}.test-review-heading{justify-content:space-between;align-items:baseline;gap:16px;display:flex}.test-review-heading>span{color:var(--ink);font-family:var(--font-display), sans-serif;font-size:.95rem;font-weight:800}.test-review-heading>small{color:var(--ink-mute);font-size:.62rem}.test-review>details{border:1px solid var(--line);background:#07120da8}.test-review>details[open]{border-color:var(--line-strong)}.test-review>details>summary{cursor:pointer;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:12px;padding:14px 15px;list-style:none;display:grid}.test-review>details>summary::-webkit-details-marker{display:none}.test-review>details>summary>span{border:1px solid var(--line-strong);width:27px;height:27px;color:var(--ink-mute);font-family:var(--font-mono), monospace;border-radius:50%;place-items:center;font-size:.62rem;display:grid}.test-review>details.is-correct>summary>span{border-color:color-mix(in srgb, var(--brand) 50%, transparent);color:var(--brand);background:var(--brand-soft)}.test-review>details.is-wrong>summary>span{border-color:color-mix(in srgb, var(--accent-tasks) 50%, transparent);color:var(--accent-tasks);background:color-mix(in srgb, var(--accent-tasks) 7%, transparent)}.test-review>details>summary strong,.test-review>details>summary small{display:block}.test-review>details>summary strong{color:var(--ink);font-size:.75rem;line-height:1.4}.test-review>details>summary small{color:var(--ink-mute);margin-top:4px;font-size:.59rem}.test-review>details>summary>b{color:var(--brand);font-family:var(--font-mono), monospace;font-size:.9rem;font-weight:500;transition:transform .18s}.test-review>details[open]>summary>b{transform:rotate(45deg)}.test-review-header,.test-review-summary{border:1px solid var(--line-strong);background:#0e1d16b8;justify-content:space-between;align-items:center;gap:18px;padding:18px;display:flex}.test-review-header h3,.test-review-summary h3{font-family:var(--font-display), sans-serif;margin:0 0 5px;font-size:1rem}.test-review-header p,.test-review-summary p{color:var(--ink-mute);margin:0;font-size:.69rem;line-height:1.55}.test-review-score{border:1px solid color-mix(in srgb, var(--accent-lessons) 48%, transparent);min-width:66px;height:66px;color:var(--ink);background:color-mix(in srgb, var(--accent-lessons) 8%, transparent);font-family:var(--font-display), sans-serif;border-radius:50%;place-items:center;font-size:1.05rem;font-weight:800;display:grid}.test-review-list,.test-review-items{gap:8px;display:grid}.test-review-item{border:1px solid var(--line);background:#07120da8;grid-template-columns:auto minmax(0,1fr);gap:12px;padding:15px;display:grid}.test-review-item>span:first-child,.test-review-status{border:1px solid var(--line-strong);width:26px;height:26px;color:var(--ink-mute);font-family:var(--font-mono), monospace;border-radius:50%;place-items:center;font-size:.6rem;display:grid}.test-review-item.is-correct>span:first-child,.test-review-item.is-correct .test-review-status{border-color:color-mix(in srgb, var(--brand) 50%, transparent);color:var(--brand);background:var(--brand-soft)}.test-review-item.is-wrong>span:first-child,.test-review-item.is-wrong .test-review-status{border-color:color-mix(in srgb, var(--accent-tasks) 48%, transparent);color:var(--accent-tasks);background:color-mix(in srgb, var(--accent-tasks) 7%, transparent)}.test-review-item h4{font-family:var(--font-display), sans-serif;margin:0 0 5px;font-size:.82rem;line-height:1.4}.test-review-item p,.test-review-answer,.test-review-explanation{color:var(--ink-mute);margin:0;font-size:.69rem;line-height:1.62}.test-review-answer{border-top:1px solid var(--line);color:var(--ink-dim);gap:10px;margin:0;padding:14px 15px 16px 54px;display:grid}.test-review-answer>p{gap:4px;margin:0;display:grid}.test-review-answer>p>span:first-child{color:var(--brand);font-family:var(--font-mono), monospace;letter-spacing:.055em;text-transform:uppercase;font-size:.52rem}.solution-toggle{gap:10px;margin-top:12px;display:grid}.solution-toggle>button{border:1px solid var(--line-strong);width:fit-content;min-height:40px;color:var(--brand);cursor:pointer;background:0 0;justify-content:center;align-items:center;gap:8px;padding:0 13px;font-size:.68rem;font-weight:700;display:inline-flex}.solution-toggle>button>span{border:1px solid var(--line-strong);width:19px;height:19px;font-family:var(--font-mono), monospace;border-radius:50%;place-items:center;font-size:.62rem;display:grid}.solution-toggle>button:hover{border-color:var(--brand);background:var(--brand-soft)}.solution-panel{border-left:2px solid var(--brand);color:var(--ink-dim);background:#1fd6850e;grid-column:1/-1;margin-top:2px;padding:14px 16px;font-size:.73rem;line-height:1.7}.solution-panel[hidden]{display:none}.solution-panel h4,.solution-panel strong{color:var(--ink)}.solution-panel h4{font-family:var(--font-display), sans-serif;margin:0 0 7px;font-size:.8rem}.solution-panel p:last-child{margin-bottom:0}.loading-orbit{border:2px solid var(--line);border-top-color:var(--brand);border-radius:50%;width:64px;height:64px;margin-bottom:25px;animation:1s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.math-block{max-width:100%;margin:10px 0;padding-bottom:2px;display:block;overflow-x:auto}.math-inline{display:inline}.math-fallback{color:inherit;font-family:var(--font-mono), monospace;font-size:.9em;display:inline}.katex{color:inherit;font-size:1.02em}.katex-display{max-width:100%;padding:2px 0 4px;overflow:auto hidden}.teacher-shell{background:linear-gradient(#22c55e06 1px, transparent 1px), linear-gradient(90deg, #22c55e06 1px, transparent 1px), var(--bg);background-size:56px 56px;min-height:100vh;padding-bottom:80px}.teacher-header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;height:78px;display:flex}.teacher-account{color:var(--ink-mute);align-items:center;gap:12px;font-size:.7rem;display:flex}.teacher-logout{border:1px solid var(--line-strong);color:var(--ink-dim);font:inherit;cursor:pointer;background:0 0;border-radius:999px;padding:7px 12px}.teacher-logout:hover,.teacher-logout:focus-visible{border-color:var(--brand);color:var(--brand);outline:none}.teacher-intro,.teacher-shell>section:not(.teacher-intro){width:min(var(--max), calc(100% - 48px));margin:0 auto}.teacher-intro{grid-template-columns:1fr 360px;gap:50px;padding:70px 0 54px;display:grid}.teacher-intro h1{max-width:790px;font-family:var(--font-display), sans-serif;letter-spacing:-.055em;margin-bottom:17px;font-size:clamp(2.5rem,5vw,4.6rem);line-height:1.02}.teacher-intro>div:first-child>p:last-child{max-width:670px;color:var(--ink-mute);line-height:1.7}.drive-status-card{border:1px solid var(--line-strong);background:var(--bg-elev);padding:24px}.drive-status-title{align-items:center;gap:9px;margin-bottom:10px;display:flex}.drive-status-title .status-dot,.sync-pill .status-dot{background:var(--brand);width:7px;height:7px;box-shadow:0 0 12px var(--brand-glow);border-radius:50%}.drive-status-card>span{color:var(--ink-mute);font-family:var(--font-mono), monospace;text-overflow:ellipsis;white-space:nowrap;margin-bottom:28px;font-size:.59rem;display:block;overflow:hidden}.drive-status-card>div:last-child{border-top:1px solid var(--line);padding-top:20px;display:grid}.drive-status-card>div:last-child strong{font-family:var(--font-display), sans-serif;font-size:2.2rem}.drive-status-card>div:last-child small{color:var(--ink-mute)}.section-heading{border-bottom:1px solid var(--line);justify-content:space-between;align-items:flex-end;padding-bottom:18px;display:flex}.section-heading h2{font-family:var(--font-display), sans-serif;margin:0;font-size:1.8rem}.section-heading>span,.result-count{color:var(--ink-mute);font-family:var(--font-mono), monospace;font-size:.61rem}.teacher-toolbar{justify-content:space-between;align-items:flex-end;gap:24px;margin:24px 0;display:flex}.teacher-search{width:min(460px,100%);color:var(--ink-mute);gap:7px;font-size:.63rem;display:grid}.teacher-search input{border:1px solid var(--line-strong);min-height:46px;color:var(--ink);background:var(--bg-elev);outline:0;padding:0 14px}.teacher-search input:focus{border-color:var(--brand)}.student-grid{grid-template-columns:repeat(3,1fr);gap:12px;display:grid}.student-card{border:1px solid var(--line);background:#0e1d16c7;padding:22px}.student-card:hover{border-color:var(--line-strong);transform:translateY(-2px)}.student-card-top{justify-content:space-between;align-items:center;margin-bottom:22px;display:flex}.student-avatar{border:1px solid var(--line-strong);width:42px;height:42px;color:var(--brand);background:var(--brand-soft);border-radius:50%;place-items:center;font-weight:800;display:grid}.sync-pill{color:var(--ink-mute);font-family:var(--font-mono), monospace;text-transform:uppercase;align-items:center;gap:7px;font-size:.53rem;display:flex}.student-card h2{font-family:var(--font-display), sans-serif;margin-bottom:6px;font-size:1.05rem}.student-card>p{min-height:38px;color:var(--ink-mute);font-size:.7rem;line-height:1.5}.student-card-meta{border-top:1px solid var(--line);border-bottom:1px solid var(--line);color:var(--ink-mute);flex-wrap:wrap;justify-content:space-between;gap:12px;padding:13px 0;font-size:.58rem;display:flex}.student-card-actions{grid-template-columns:1fr 1fr;gap:7px;margin-top:16px;display:grid}.student-card-actions a,.student-card-actions button{border:1px solid var(--line-strong);min-height:40px;color:var(--brand);background:var(--brand-soft);cursor:pointer;place-items:center;padding:0 8px;font-size:.63rem;display:grid}.student-card-actions button{color:var(--ink-dim);background:0 0}.drive-source-link{color:var(--ink-mute);margin-top:13px;font-size:.58rem;display:block}.empty-search{border:1px dashed var(--line-strong);text-align:center;padding:40px}.empty-search p{color:var(--ink-mute);margin:7px 0 0;font-size:.72rem}@media (width<=1050px){.landing-hero{grid-template-columns:1fr .85fr;gap:45px}.landing-guide{padding:24px}.landing-guide-step{grid-template-columns:38px minmax(0,1fr);gap:12px}.student-hero{grid-template-columns:1.2fr .75fr}.home-dashboard{grid-template-columns:1fr 1fr}.ask-card{grid-column:1/-1}.student-grid{grid-template-columns:repeat(2,1fr)}}@media (width<=820px){.landing-header,.portal-header,.teacher-header,.landing-hero,.landing-metrics,.method-section,.landing-cta,.landing-footer,.portal-content,.teacher-intro,.teacher-shell>section:not(.teacher-intro){width:min(100% - 32px, var(--max))}.landing-nav>a:not(.main-site-link){display:none}.landing-hero{grid-template-columns:1fr;padding-top:70px}.landing-guide{width:min(560px,100%);margin:0 auto}.method-heading{grid-template-columns:1fr;gap:22px}.method-flow{grid-template-columns:repeat(2,1fr)}.method-flow article:nth-child(2){border-right:0}.method-flow article:nth-child(-n+2){border-bottom:1px solid var(--line)}.student-hero{grid-template-columns:1fr}.daily-goal-card{min-height:380px}.mission-grid,.home-dashboard{grid-template-columns:1fr}.ask-card{grid-column:auto}.portal-tabs button{padding:0 11px}.portal-tabs button span{display:none}.portal-tabs button .tab-icon,.portal-tabs .nav-badge{display:grid}.timeline-layout,.conversation-layout,.teacher-intro{grid-template-columns:1fr}.transcript-card{position:static}.progress-summary{grid-template-columns:1fr 1fr}.progress-summary article:first-child{grid-column:1/-1}.progress-columns{grid-template-columns:1fr}}@media (width<=620px){.landing-header{height:72px}.sync-status{display:none}.landing-copy h1{font-size:clamp(2.75rem,14vw,4rem)}.access-row{gap:5px;display:grid}.access-row input,.access-row button{min-height:50px}.landing-footnote{display:grid}.landing-guide{padding:24px 20px}.landing-guide-topline{margin-bottom:20px}.landing-guide-intro{margin-bottom:22px}.landing-guide-step{grid-template-columns:38px minmax(0,1fr);padding:11px 12px}.landing-guide-cta{min-height:54px;font-size:.8rem}.landing-guide-help{font-size:.8rem}.landing-metrics{grid-template-columns:1fr}.landing-metrics>div{border-right:0;border-bottom:1px solid var(--line)}.landing-metrics>div:last-child{border-bottom:0}.method-section{padding:85px 0}.method-flow{grid-template-columns:1fr}.method-flow article{border-right:0;border-bottom:1px solid var(--line);min-height:240px}.method-flow article:last-child{border-bottom:0}.landing-cta{flex-direction:column;align-items:flex-start;padding:30px}.landing-cta>a{width:100%}.landing-footer{flex-direction:column;align-items:flex-start}.portal-header{height:66px}.main-site-link{min-height:40px;padding-right:10px}.main-site-link-long{display:none}.main-site-link-short{display:inline}.teacher-header .quanta-brand small,.teacher-account>span:first-of-type{display:none}.portal-header .quanta-brand small,.portal-stats .level-chip,.portal-stats>span:nth-child(2) small,.portal-stats>span:nth-child(3) small{display:none!important}.portal-header .quanta-brand img{width:34px;height:34px}.portal-stats{gap:10px}.student-mini-avatar{width:34px;height:34px}.portal-tabs{display:none}.student-app{padding-bottom:82px}.mobile-nav{z-index:40;border-top:1px solid var(--line-strong);padding:5px 5px max(5px, env(safe-area-inset-bottom));-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#07120df5;grid-template-columns:repeat(5,1fr);display:grid;position:fixed;bottom:0;left:0;right:0}.mobile-nav button{color:var(--ink-mute);background:0 0;border:0;place-items:center;gap:3px;padding:7px 2px;font-size:.52rem;display:grid;position:relative}.mobile-badge{color:#03140b;background:var(--brand);min-width:15px;height:15px;font-family:var(--font-mono), monospace;border-radius:999px;place-items:center;padding:0 4px;font-size:.48rem;display:grid;position:absolute;top:3px;left:calc(50% + 7px)}.mobile-nav button span{color:currentColor;font-size:.85rem}.mobile-nav button[aria-current=page]{color:var(--brand)}.mobile-more{min-width:0;position:relative}.mobile-more>.mobile-more-trigger{width:100%;height:100%}.mobile-more-menu{border:1px solid var(--line-strong);background:#07180ffc;gap:6px;width:min(250px,100vw - 20px);padding:9px;display:grid;position:absolute;bottom:calc(100% + 12px);right:4px;box-shadow:0 18px 55px #00000085}.mobile-more-menu button{border:1px solid var(--line);min-height:46px;color:var(--ink-dim);text-align:left;background:#0e1d16b8;grid-template-columns:32px 1fr;place-items:center start;gap:10px;padding:7px 11px;font-size:.69rem;display:grid}.mobile-more-menu button .tab-icon{color:currentColor;background:var(--brand-soft);border-radius:50%;place-items:center;width:30px;height:30px;font-size:.82rem;display:grid}.mobile-more-menu button>span:last-child{font-size:.69rem}.mobile-more-menu button[aria-current=page]{border-color:var(--brand);color:var(--brand)}.demo-banner{flex-direction:column;align-items:flex-start}.student-hero{padding-top:24px}.student-hero-copy{min-height:0;padding:27px}.student-hero-copy h1{font-size:clamp(2.2rem,12vw,3.25rem)}.hero-actions{display:grid}.hero-actions button,.hero-actions a{width:100%}.daily-goal-card{padding:24px}.section-title-row,.task-shortcut,.task-guide-card{flex-direction:column;align-items:flex-start}.task-shortcut .secondary-action{width:100%}.task-overview{grid-template-columns:1fr}.mission-card strong{white-space:normal}.section-page{padding:35px 0}.section-page-heading{flex-direction:column;align-items:flex-start}.page-action-group{width:100%;display:grid}.page-action-group button{width:100%}.section-page-heading h1{font-size:2.75rem}.node-card{padding:19px}.node-card-top,.node-card-bottom{flex-direction:column;align-items:flex-start}.node-actions{justify-content:space-between;width:100%}.learning-node{grid-template-columns:42px 1fr}.node-rail>span{width:34px;height:34px}.task-list-new article{grid-template-columns:auto 1fr}.task-title-line{flex-direction:column;align-items:flex-start;gap:4px}.task-start{grid-column:2;justify-self:start;padding:6px 0}.lesson-list{margin-top:26px;padding:18px}.lesson-list-header,.lesson-list-heading,.lesson-list-footer,.lesson-list-actions{flex-direction:column;align-items:flex-start}.lesson-exercise{grid-template-columns:auto minmax(0,1fr);align-items:start;padding:15px}.lesson-exercise-actions{grid-column:2;justify-content:flex-start;width:100%}.lesson-exercise-action,.lesson-exercise-actions>button{width:100%}.lesson-list-history article{flex-direction:column;align-items:flex-start}.materials-grid,.progress-summary,.achievement-grid,.student-grid{grid-template-columns:1fr}.progress-summary article:first-child{grid-column:auto}.material-card{padding:14px}.message-composer,.message-history{padding:21px}.practice-overlay{align-items:end;padding:0}.practice-modal{border-bottom:0;border-left:0;border-right:0;width:100%;max-height:94vh}.practice-body{padding:28px 18px 22px}.practice-body>h2,.prompt-stem>h2,.prompt-stem .prompt-title{font-size:1.05rem;line-height:1.58}.prompt-paragraphs p,.prompt-paragraphs>span{font-size:.95rem;line-height:1.68}.prompt-original-choices{padding:12px 13px}.test-silence-note{font-size:.68rem}.practice-header{padding-left:18px}.practice-header small{max-width:230px}.practice-footer{flex-direction:column;align-items:stretch;padding:15px 18px}.practice-footer .primary-action{width:100%}.practice-loading,.practice-empty,.practice-complete{min-height:500px;padding:35px 22px}.completion-stats{grid-template-columns:1fr}.test-review-header,.test-review-summary{flex-direction:column-reverse;align-items:flex-start}.test-review-heading{flex-direction:column;align-items:flex-start;gap:5px}.test-review-answer{padding-left:15px}.test-review-item{padding:13px}.solution-toggle>button{width:100%}.teacher-intro{padding-top:44px}.teacher-intro h1{font-size:2.8rem}.teacher-toolbar{flex-direction:column;align-items:flex-start}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}.today-mission,.quanta-orbit,.error-notebook,.lesson-replay,.notebook-assistant,.request-desk,.personal-best{border:1px solid var(--line);background:linear-gradient(135deg,#10271df0,#07150ef0)}.learning-offline{background:#ffbd590e;border:1px solid #ffbd5947;align-items:center;gap:13px;margin:18px 0 0;padding:13px 15px;display:flex}.learning-offline>span{color:#ffbd59;width:30px;height:30px;font:700 .65rem var(--font-mono), monospace;border:1px solid #ffbd5959;border-radius:50%;flex:none;place-items:center;display:grid}.learning-offline strong{font-size:.7rem}.learning-offline p{color:var(--ink-mute);margin:3px 0 0;font-size:.61rem;line-height:1.5}.approved-activities{background:linear-gradient(135deg,#181b2bc7,#07150ef5);border:1px solid #b7a0ff3b;margin:28px 0;padding:clamp(22px,3vw,34px)}.approved-heading{justify-content:space-between;align-items:flex-end;gap:18px;margin-bottom:20px;display:flex}.approved-heading h2{font:800 clamp(1.3rem, 2.5vw, 1.9rem) var(--font-display), sans-serif;letter-spacing:-.035em;margin:6px 0}.approved-heading p:not(.eyebrow){color:var(--ink-dim);margin:0;font-size:.7rem}.approved-heading>span{color:#b7a0ff;font:.58rem var(--font-mono), monospace;text-transform:uppercase}.approved-list{gap:10px;display:grid}.approved-list>article{border:1px solid var(--line);background:#04110a8c;grid-template-columns:38px minmax(0,1fr);gap:15px;padding:17px;display:grid}.approved-index{color:#b7a0ff;width:34px;height:34px;font:700 .65rem var(--font-mono), monospace;border:1px solid #b7a0ff59;border-radius:50%;place-items:center;display:grid}.approved-body{gap:11px;min-width:0;display:grid}.approved-body>div:first-child{color:#b7a0ff;font:.55rem var(--font-mono), monospace;text-transform:uppercase;justify-content:space-between;display:flex}.approved-body h3{font:800 1rem var(--font-display), sans-serif;margin:0}.approved-body>p{color:var(--ink-dim);margin:0;font-size:.75rem;line-height:1.65}.approved-body>small{color:var(--ink-mute);font:.55rem var(--font-mono), monospace}.approved-body label{color:var(--ink-dim);font-size:.64rem;font-weight:700}.approved-body textarea{resize:vertical;border:1px solid var(--line-strong);width:100%;color:var(--ink);font:inherit;background:#030f08b3;padding:12px;line-height:1.55}.approved-confidence{flex-wrap:wrap;align-items:center;gap:7px;color:var(--ink-mute)!important;text-transform:none!important;justify-content:flex-start!important;display:flex!important}.approved-confidence button{border:1px solid var(--line);min-height:34px;color:var(--ink-dim);cursor:pointer;background:0 0;padding:0 9px;font-size:.58rem}.approved-confidence button[aria-pressed=true]{color:var(--ink);background:#b7a0ff1a;border-color:#b7a0ff}.approved-body>.primary-action{width:fit-content}.approved-result{background:#ffbd590d;border-left:3px solid #ffbd59;padding:14px;color:var(--ink)!important;text-transform:none!important;gap:10px!important;display:grid!important}.approved-result.is-correct{border-color:var(--brand);background:#1fd6850d}.approved-result p{color:var(--ink-dim);margin:0;font-size:.68rem;line-height:1.55}.approved-result>div{gap:5px;display:grid}.approved-result>div span{color:var(--ink-mute);font:.55rem var(--font-mono), monospace;text-transform:uppercase}.today-mission{background:radial-gradient(circle at 9%,#1fd68529,#0000 26%),linear-gradient(110deg,#0e2b1efa,#07150ef5);border-color:#1fd68557;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:24px;margin:24px 0 38px;padding:26px 28px;display:grid}.today-mission-orbit{border:1px solid #1fd68552;border-radius:50%;place-items:center;width:68px;height:68px;display:grid;box-shadow:inset 0 0 0 9px #1fd6850d,0 0 34px #1fd6851a}.today-mission-orbit span{color:#03140b;background:var(--brand);width:37px;height:37px;font:800 1rem var(--font-mono), monospace;border-radius:50%;place-items:center;display:grid}.today-mission-copy{min-width:0}.today-mission-kicker{color:var(--brand);font:700 .62rem var(--font-mono), monospace;letter-spacing:.1em;text-transform:uppercase;align-items:center;gap:10px;display:flex}.today-mission-kicker b{color:#67c8ff;letter-spacing:0;background:#67c8ff14;border:1px solid #67c8ff40;border-radius:999px;padding:4px 7px}.today-mission h2{max-width:760px;font:800 clamp(1.25rem, 2.2vw, 1.8rem) var(--font-display), sans-serif;letter-spacing:-.035em;margin:8px 0 6px}.today-mission p{max-width:780px;color:var(--ink-dim);margin:0;font-size:.78rem;line-height:1.65}.today-mission-plan{color:var(--ink-mute);font:600 .6rem var(--font-mono), monospace;flex-wrap:wrap;align-items:center;gap:8px;margin-top:13px;display:flex}.today-mission-plan i{background:var(--line-strong);width:15px;height:1px}.mission-cta{min-width:210px}.quanta-orbit,.error-notebook,.lesson-replay,.notebook-assistant,.request-desk,.personal-best{margin-top:28px;padding:clamp(22px,3.2vw,38px)}.orbit-heading,.error-notebook-heading,.replay-heading{justify-content:space-between;align-items:flex-end;gap:28px;margin-bottom:26px;display:flex}.orbit-heading h2,.error-notebook-heading h2,.replay-heading h2,.notebook-assistant h2,.request-desk h2,.personal-best h2{font:800 clamp(1.35rem, 2.6vw, 2rem) var(--font-display), sans-serif;letter-spacing:-.035em;margin:6px 0 8px}.orbit-heading p:not(.eyebrow),.error-notebook-heading p:not(.eyebrow),.replay-heading p:not(.eyebrow),.notebook-assistant p,.request-desk>div:first-child>p:last-child,.personal-best>div:first-child>p:last-child{max-width:720px;color:var(--ink-dim);margin:0;font-size:.76rem;line-height:1.65}.orbit-legend{flex-wrap:wrap;justify-content:flex-end;gap:8px;display:flex}.orbit-legend span{color:var(--ink-mute);font:600 .56rem var(--font-mono), monospace;align-items:center;gap:6px;display:inline-flex}.orbit-legend span:before{content:"";background:#879990;border-radius:50%;width:7px;height:7px}.orbit-legend [data-state=strong]:before,.orbit-map [data-state=strong] span{background:#1fd685}.orbit-legend [data-state=learning]:before,.orbit-map [data-state=learning] span{background:#67c8ff}.orbit-legend [data-state=review_due]:before,.orbit-map [data-state=review_due] span{background:#ffbd59}.orbit-legend [data-state=new]:before,.orbit-map [data-state=new] span{background:#879990}.orbit-layout{grid-template-columns:minmax(330px,.85fr) 1.15fr;align-items:center;gap:34px;display:grid}.orbit-map{background:radial-gradient(circle,#0000 0 14%,#1fd68514 14.5% 15%,#0000 15.5% 36%,#67c8ff17 36.5% 37%,#0000 37.5% 61%,#b7a0ff14 61.5% 62%,#0000 62.5%);border:1px solid #1fd6851f;border-radius:50%;min-height:335px;position:relative}.orbit-core,.orbit-map button{border-radius:50%;place-items:center;display:grid;position:absolute;transform:translate(-50%,-50%)}.orbit-core{color:#03140b;background:var(--brand);width:58px;height:58px;font:900 1.2rem var(--font-display), sans-serif;top:50%;left:50%;box-shadow:0 0 30px #1fd6853b}.orbit-map button{cursor:pointer;background:#07150ef5;border:1px solid #9db0a633;width:45px;height:45px;padding:0}.orbit-map button span{color:#03140b;width:27px;height:27px;font:800 .62rem var(--font-mono), monospace;border-radius:50%;place-items:center;display:grid}.orbit-map button[data-selected]{border-color:var(--brand);box-shadow:0 0 0 5px #1fd6851a,0 0 25px #1fd68529}.orbit-map button:first-of-type{top:17%;left:50%}.orbit-map button:nth-of-type(2){top:29%;left:78%}.orbit-map button:nth-of-type(3){top:62%;left:85%}.orbit-map button:nth-of-type(4){top:83%;left:61%}.orbit-map button:nth-of-type(5){top:79%;left:29%}.orbit-map button:nth-of-type(6){top:50%;left:17%}.orbit-map button:nth-of-type(7){top:22%;left:25%}.orbit-map button:nth-of-type(8){top:52%;left:70%}.orbit-detail{border-left:3px solid #879990;padding:8px 0 8px 26px}.orbit-detail[data-state=strong]{border-color:#1fd685}.orbit-detail[data-state=learning],.orbit-detail[data-state=practicing]{border-color:#67c8ff}.orbit-detail[data-state=review_due]{border-color:#ffbd59}.orbit-detail>div:first-child{color:var(--ink-mute);font:700 .6rem var(--font-mono), monospace;text-transform:uppercase;justify-content:space-between;align-items:center;display:flex}.orbit-detail>div:first-child b{color:var(--brand);font-size:.72rem}.orbit-detail h3{font:800 1.7rem var(--font-display), sans-serif;margin:13px 0 8px}.orbit-detail p{color:var(--ink-dim);margin:0 0 12px;font-size:.78rem;line-height:1.65}.orbit-detail>small{color:var(--ink-mute);font:.58rem var(--font-mono), monospace}.orbit-actions{flex-wrap:wrap;gap:9px;margin-top:22px;display:flex}.orbit-actions button,.replay-chapters button,.error-actions button,.photo-resolution>button{border:1px solid var(--line-strong);min-height:40px;color:var(--brand);cursor:pointer;background:0 0;padding:0 13px;font-size:.67rem;font-weight:800}.error-actions button:disabled{color:var(--ink-mute);cursor:not-allowed;opacity:.48}.orbit-actions button:disabled{color:var(--ink-mute);cursor:not-allowed;opacity:.65}.error-notebook-heading>span{border-left:1px solid var(--line);min-width:110px;color:var(--ink-mute);font:.6rem var(--font-mono), monospace;place-items:center;display:grid}.error-notebook-heading>span strong{color:#ffbd59;font:800 2.4rem var(--font-display), sans-serif}.error-list{gap:9px;display:grid}.error-list>article{border:1px solid var(--line);background:#05120b80}.error-list>article[data-due]{border-color:#ffbd5952}.error-summary{width:100%;color:var(--ink);text-align:left;cursor:pointer;background:0 0;border:0;grid-template-columns:auto 1fr auto;align-items:center;gap:13px;padding:15px;display:grid}.error-mark{color:#ffbd59;background:#ffbd590f;border:1px solid #ffbd5940;border-radius:50%;place-items:center;width:34px;height:34px;display:grid}.error-summary>div{gap:4px;display:grid}.error-summary strong{font-size:.78rem}.error-summary small{color:var(--ink-mute);font:.58rem var(--font-mono), monospace}.error-summary>b{color:var(--brand);font-weight:400}.error-detail{border-top:1px solid var(--line);color:var(--ink-dim);gap:12px;padding:18px 18px 20px 62px;font-size:.75rem;line-height:1.65;display:grid}.error-detail>p{margin:0}.error-detail>div:not(.error-actions){border-left:2px solid var(--line-strong);gap:5px;padding-left:12px;display:grid}.error-detail>div:not(.error-actions) span{color:var(--ink-mute);font:.56rem var(--font-mono), monospace;text-transform:uppercase}.error-actions{flex-wrap:wrap;align-items:center;gap:7px;display:flex}.error-actions>span{color:var(--ink-mute);font-size:.64rem}.studio-skeleton,.studio-empty{border:1px dashed var(--line-strong);color:var(--ink-mute);padding:24px;font-size:.74rem}.studio-empty{align-items:center;gap:16px;display:flex}.studio-empty>span{border:1px solid var(--line-strong);width:42px;height:42px;color:var(--brand);border-radius:50%;flex:none;place-items:center;display:grid}.studio-empty h3{color:var(--ink);font:800 1rem var(--font-display), sans-serif;margin:0 0 5px}.studio-empty p{margin:0;line-height:1.6}.studio-status{color:#67c8ff!important;font:.65rem/1.5 var(--font-mono), monospace!important;margin:14px 0 0!important}.replay-heading label{min-width:280px;color:var(--ink-mute);font:.58rem var(--font-mono), monospace;text-transform:uppercase;gap:6px;display:grid}.replay-heading select{border:1px solid var(--line-strong);min-height:44px;color:var(--ink);background:#07150e;padding:0 12px;font-size:.68rem}.replay-layout{grid-template-columns:minmax(0,1fr) 280px;gap:20px;display:grid}.replay-chapters{gap:0;margin:0;padding:0;list-style:none;display:grid}.replay-chapters li{border-left:1px solid #b7a0ff66;grid-template-columns:90px minmax(0,1fr) auto;align-items:center;gap:16px;padding:13px 0 13px 20px;display:grid;position:relative}.replay-chapters li:before{content:"";background:#b7a0ff;border-radius:50%;width:9px;height:9px;position:absolute;top:50%;left:-5px}.replay-chapters li>span{color:#b7a0ff;font:700 .57rem var(--font-mono), monospace;text-transform:uppercase}.replay-chapters li>div{gap:4px;display:grid}.replay-chapters strong{font-size:.78rem}.replay-chapters p{color:var(--ink-dim);margin:0;font-size:.69rem;line-height:1.5}.replay-chapters small{color:var(--ink-mute);font:.55rem var(--font-mono), monospace}.replay-sources{background:#4fd7d10a;border:1px solid #4fd7d12e;padding:20px}.replay-sources h3{font:800 1rem var(--font-display), sans-serif;margin:16px 0 10px}.replay-sources ul{gap:7px;margin:0 0 15px;padding:0;list-style:none;display:grid}.replay-sources li{color:var(--ink-dim);text-overflow:ellipsis;white-space:nowrap;font-size:.65rem;overflow:hidden}.replay-sources li:before{color:#4fd7d1;content:"□ "}.replay-sources p,.replay-sources>small{color:var(--ink-mute);font-size:.61rem;line-height:1.55}.notebook-assistant{background:linear-gradient(135deg,#0d2621f5,#07150ef5);border-color:#67c8ff38}.assistant-intro{align-items:flex-start;gap:18px;display:flex}.assistant-intro .ask-orbit{color:#67c8ff;border-color:#67c8ff61;flex:none}.assistant-sources{flex-wrap:wrap;align-items:center;gap:7px;margin:20px 0 14px;display:flex}.assistant-sources>span{color:var(--ink-mute);font:.56rem var(--font-mono), monospace;text-transform:uppercase}.assistant-sources b{color:#9ddcff;text-overflow:ellipsis;white-space:nowrap;background:#67c8ff0d;border:1px solid #67c8ff2e;border-radius:999px;max-width:260px;padding:6px 9px;font-size:.57rem;font-weight:600;overflow:hidden}.notebook-assistant>label,.request-desk label{color:var(--ink-dim);margin-bottom:7px;font-size:.67rem;font-weight:700;display:block}.notebook-assistant textarea,.request-desk textarea{resize:vertical;border:1px solid var(--line-strong);width:100%;color:var(--ink);font:inherit;background:#030f08b8;outline:0;padding:13px;line-height:1.6}.notebook-assistant textarea:focus,.request-desk textarea:focus{border-color:#67c8ff;box-shadow:0 0 0 3px #67c8ff14}.assistant-actions{flex-wrap:wrap;gap:9px;margin-top:11px;display:flex}.assistant-disclaimer{color:var(--ink-mute)!important;font:.58rem/1.55 var(--font-mono), monospace!important;margin-top:12px!important}.assistant-answers{gap:8px;margin-top:18px;display:grid}.assistant-answers article{background:#67c8ff0a;border-left:2px solid #67c8ff;padding:12px 14px}.assistant-answers strong{font-size:.68rem}.assistant-answers p{color:var(--ink)!important;margin:7px 0!important}.assistant-answers small{color:var(--ink-mute);font:.56rem var(--font-mono), monospace}.assistant-answer-actions{flex-wrap:wrap;align-items:center;gap:9px;margin-top:10px;display:flex}.conversation-reply-context{color:var(--ink-dim);background:#ff92b70d;border-left:2px solid #ff92b7;justify-content:space-between;align-items:center;gap:12px;margin-bottom:8px;padding:9px 11px;font-size:.62rem;display:flex}.conversation-reply-context button{color:#ff92b7;font:700 .58rem var(--font-mono), monospace;cursor:pointer;background:0 0;border:0;padding:0}.history-toggle{color:#9ddcff;cursor:pointer;background:#67c8ff0d;border:1px solid #67c8ff4d;min-height:38px;margin-top:14px;padding:0 13px;font-size:.62rem;font-weight:800}.request-desk{border-color:#ff92b72e}.request-desk>form{margin-top:22px}.request-options{grid-template-columns:repeat(5,1fr);gap:7px;margin-bottom:16px;display:grid}.request-options button{border:1px solid var(--line);min-height:70px;color:var(--ink-dim);cursor:pointer;background:#04110a99;place-items:center;gap:5px;padding:9px;font-size:.6rem;font-weight:700;display:grid}.request-options button span{color:#ff92b7;width:24px;height:24px;font-family:var(--font-mono), monospace;background:#ff92b717;border-radius:50%;place-items:center;display:grid}.request-options button[aria-pressed=true]{color:var(--ink);background:#ff92b714;border-color:#ff92b773}.request-desk form>button{margin-top:11px}.photo-resolution{border-top:1px solid var(--line);grid-template-columns:1fr minmax(220px,.55fr) auto;align-items:center;gap:14px;margin-top:20px;padding-top:20px;display:grid}.photo-resolution>div{align-items:center;gap:12px;display:flex}.photo-icon{color:#4fd7d1;border:1px solid #4fd7d140;border-radius:50%;flex:none;place-items:center;width:38px;height:38px;display:grid}.photo-resolution strong{font-size:.72rem}.photo-resolution p{color:var(--ink-mute);margin:4px 0 0;font-size:.6rem;line-height:1.45}.photo-resolution input{min-width:0;color:var(--ink-dim);font-size:.6rem}.request-history{grid-template-columns:repeat(4,1fr);gap:8px;margin-top:22px;display:grid}.request-history>span,.request-history>h3{color:var(--ink-mute);font:.56rem var(--font-mono), monospace;text-transform:uppercase;grid-column:1/-1;margin:0}.request-history article{border:1px solid var(--line);padding:12px}.request-history strong{font-size:.66rem}.request-history p{color:var(--ink-dim);margin:5px 0;font-size:.6rem;line-height:1.45}.request-history small{color:#ff92b7;font:.53rem var(--font-mono), monospace}.request-reply{background:#ff92b70a;border-left:2px solid #ff92b7;margin:9px 0;padding:7px 0 7px 9px}.request-reply span{color:#ff92b7;font:.52rem var(--font-mono), monospace;text-transform:uppercase}.request-reply p{margin-bottom:0;color:var(--ink)!important}.personal-best{border-color:#f7d66333}.personal-best-grid{grid-template-columns:repeat(4,1fr);gap:9px;margin-top:22px;display:grid}.personal-best-grid article{border:1px solid var(--line);background:#05110a8c;align-content:space-between;min-height:130px;padding:16px;display:grid}.personal-best-grid article>span{color:var(--ink-mute);font:.56rem var(--font-mono), monospace;text-transform:uppercase}.personal-best-grid strong{color:#f7d663;font:800 1.9rem var(--font-display), sans-serif}.personal-best-grid strong small{font-size:.7rem}.personal-best-grid article>small{color:var(--ink-dim);font-size:.59rem;line-height:1.45}.weekly-summaries{background:linear-gradient(135deg,#0a231ec7,#07150ef0);border:1px solid #4fd7d130;margin-top:16px;padding:clamp(20px,3vw,30px)}.weekly-summaries-heading{justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:17px;display:flex}.weekly-summaries-heading h2{font:800 clamp(1.25rem, 2.2vw, 1.7rem) var(--font-display), sans-serif;letter-spacing:-.03em;margin:5px 0 6px}.weekly-summaries-heading p:not(.eyebrow){max-width:680px;color:var(--ink-dim);margin:0;font-size:.69rem;line-height:1.55}.weekly-summaries-heading>span{color:#4fd7d1;font:.56rem var(--font-mono), monospace;text-transform:uppercase}.weekly-summary-list{grid-template-columns:repeat(3,1fr);gap:9px;display:grid}.weekly-summary-list article{border:1px solid var(--line);background:#03100980;padding:16px}.weekly-summary-list article>div{gap:4px;margin-bottom:10px;display:grid}.weekly-summary-list article span{color:#4fd7d1;font-size:.66rem;font-weight:800}.weekly-summary-list article small{color:var(--ink-mute);font:.53rem var(--font-mono), monospace;text-transform:uppercase}.weekly-summary-list article p{color:var(--ink-dim);white-space:pre-line;margin:0;font-size:.65rem;line-height:1.65}.confidence-selector{background:#67c8ff09;border:1px solid #67c8ff2e;margin:18px 0 0;padding:14px}.confidence-selector legend{color:#9ddcff;font:700 .62rem var(--font-mono), monospace;padding:0 7px}.confidence-selector>div{grid-template-columns:repeat(3,1fr);gap:7px;display:grid}.confidence-selector button{border:1px solid var(--line);color:var(--ink-dim);text-align:left;cursor:pointer;background:#030f0894;gap:4px;padding:10px;display:grid}.confidence-selector button[aria-pressed=true]{color:var(--ink);background:#67c8ff1a;border-color:#67c8ff}.confidence-selector button span{font-size:.68rem;font-weight:800}.confidence-selector button small{color:var(--ink-mute);font-size:.55rem;line-height:1.35}.confidence-selector>p{color:var(--ink-mute);margin:9px 0 0;font-size:.58rem;line-height:1.5}.accessibility-dock{z-index:70;position:fixed;bottom:18px;right:16px}.learning-arrival-toast{width:min(320px,100vw - 20px);color:var(--ink);background:#091b12;border:1px solid #67c8ff73;gap:8px;padding:16px;display:grid;position:absolute;bottom:50px;right:0;box-shadow:0 20px 60px #0000008c}.learning-arrival-toast[data-panel-open=true]{bottom:370px}.learning-arrival-toast>span{color:var(--ink-dim);font-size:.68rem;line-height:1.5}.accessibility-trigger{min-height:42px;color:var(--ink);cursor:pointer;background:#07150ef5;border:1px solid #67c8ff4d;border-radius:999px;align-items:center;gap:8px;padding:5px 12px 5px 5px;font-size:.6rem;display:flex;box-shadow:0 10px 35px #0000004d}.accessibility-trigger span{color:#03140b;width:30px;height:30px;font:800 .68rem var(--font-mono), monospace;background:#67c8ff;border-radius:50%;place-items:center;display:grid}.accessibility-panel{background:#091b12;border:1px solid #67c8ff4d;gap:8px;width:300px;padding:16px;display:grid;position:absolute;bottom:50px;right:0;box-shadow:0 20px 60px #0000008c}.accessibility-panel>div{justify-content:space-between;align-items:center;margin-bottom:4px;display:flex}.accessibility-panel>div strong{font-size:.78rem}.accessibility-panel>div button{color:var(--ink-dim);cursor:pointer;background:0 0;border:0;font-size:1.25rem}.accessibility-panel label{border:1px solid var(--line);cursor:pointer;align-items:center;gap:10px;padding:10px;display:flex}.accessibility-panel input{width:18px;height:18px;accent-color:var(--brand)}.accessibility-panel label span{gap:3px;font-size:.68rem;font-weight:700;display:grid}.accessibility-panel label small,.accessibility-panel>small{color:var(--ink-mute);font-size:.55rem;font-weight:400;line-height:1.4}html[data-quanta-large-text=true] .student-app{font-size:118%}html[data-quanta-large-text=true] .student-app button,html[data-quanta-large-text=true] .student-app input,html[data-quanta-large-text=true] .student-app textarea,html[data-quanta-large-text=true] .student-app select{min-height:46px}html[data-quanta-high-contrast=true] .student-app{--ink:#fff;--ink-dim:#e3f4eb;--ink-mute:#b9d6c5;--line:#89ffc042;--line-strong:#89ffc08c;background-color:#010905}html[data-quanta-high-contrast=true] .student-app article,html[data-quanta-high-contrast=true] .student-app section{box-shadow:inset 0 0 0 1px #ffffff05}html[data-quanta-large-equations=true] .student-app .katex{font-size:1.35em}html[data-quanta-large-equations=true] .student-app .katex-display{padding:12px 0;overflow-x:auto}.resume-checkpoint{background:linear-gradient(90deg,#ffbd5911,#0b2117d1);border:1px solid #ffbd593d;grid-template-columns:50px minmax(0,1fr) auto;align-items:center;gap:18px;margin:14px 0 0;padding:18px 20px;display:grid}.resume-checkpoint-icon{color:#ffbd59;background:#ffbd5912;border:1px solid #ffbd5966;border-radius:50%;place-items:center;width:50px;height:50px;font-size:1.1rem;display:grid}.resume-checkpoint h2{font:800 clamp(1rem, 2vw, 1.35rem) var(--font-display), sans-serif;letter-spacing:-.02em;margin:5px 0}.resume-checkpoint p:not(.eyebrow){color:var(--ink-dim);margin:0;font-size:.66rem;line-height:1.55}.resume-checkpoint small{color:#ffcf7c;font:.53rem var(--font-mono), monospace;margin-top:6px;display:block}.resume-checkpoint>button{color:#281802;cursor:pointer;background:#ffbd59;border:1px solid #ffbd59;min-height:43px;padding:0 16px;font-size:.62rem;font-weight:800}.memory-warmup{background:linear-gradient(135deg,#16122f70,#07170ff0);border:1px solid #b7a0ff33;margin-top:16px;padding:clamp(20px,3vw,30px)}.memory-warmup-heading{justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:18px;display:flex}.memory-warmup-heading h2{font:800 clamp(1.25rem, 2.2vw, 1.7rem) var(--font-display), sans-serif;letter-spacing:-.03em;margin:5px 0 6px}.memory-warmup-heading p:not(.eyebrow){max-width:680px;color:var(--ink-dim);margin:0;font-size:.67rem;line-height:1.55}.memory-warmup-heading>span{color:#d1c3ff;font:.56rem var(--font-mono), monospace;white-space:nowrap;border:1px solid #b7a0ff52;padding:7px 9px}.memory-card{background:#06110cb8;border:1px solid #b7a0ff45;padding:clamp(18px,3vw,28px);position:relative;overflow:hidden}.memory-card:before{background:linear-gradient(90deg, #b7a0ff, #67c8ff, var(--brand));content:"";height:2px;position:absolute;inset:0 0 auto}.memory-card-top{justify-content:space-between;align-items:center;gap:14px;display:flex}.memory-card-top span{color:#d1c3ff;font:700 .58rem var(--font-mono), monospace;text-transform:uppercase}.memory-card-top small{color:var(--ink-mute);font:.54rem var(--font-mono), monospace}.memory-card h3{max-width:850px;font:800 clamp(1.1rem, 2.6vw, 1.75rem)/1.3 var(--font-display), sans-serif;letter-spacing:-.025em;margin:22px 0}.memory-reveal{color:#140d31;cursor:pointer;background:#b7a0ff;border:1px solid #b7a0ff;min-height:42px;padding:0 15px;font-size:.62rem;font-weight:800}.memory-clue{background:#67c8ff0e;border-left:3px solid #67c8ff;margin-bottom:18px;padding:13px 16px}.memory-clue>span{color:#9ddcff;font:.55rem var(--font-mono), monospace;text-transform:uppercase}.memory-clue p{color:var(--ink);margin:8px 0;font-size:.72rem;line-height:1.6}.memory-clue small{color:var(--ink-mute);font:.54rem var(--font-mono), monospace}.memory-actions{border-top:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:7px;padding-top:15px;display:flex}.memory-actions>span{color:var(--ink-mute);margin-right:4px;font-size:.58rem}.memory-actions button{border:1px solid var(--line-strong);min-height:38px;color:var(--ink-dim);cursor:pointer;background:0 0;padding:0 11px;font-size:.58rem}.memory-actions button:first-of-type{color:#ffb2cb;border-color:#ff92b752}.memory-actions button:nth-of-type(2){color:#ffcf7c;border-color:#ffbd5952}.memory-actions button:nth-of-type(3){color:#8edbd7;border-color:#4fd7d152}.memory-actions button:last-child{border-color:var(--brand);color:#061b12;background:var(--brand);margin-left:auto;font-weight:800}.memory-actions button:disabled{cursor:not-allowed;opacity:.38}.memory-local-note{color:var(--ink-mute);font:.52rem/1.5 var(--font-mono), monospace;margin-top:10px;display:block}.visual-source-gallery{background:linear-gradient(135deg,#0a231ebd,#06140df0);border:1px solid #4fd7d133;margin-bottom:18px;padding:clamp(20px,3vw,30px)}.visual-source-heading{justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:18px;display:flex}.visual-source-heading h2{font:800 clamp(1.25rem, 2.2vw, 1.75rem) var(--font-display), sans-serif;letter-spacing:-.03em;margin:5px 0 7px}.visual-source-heading p:not(.eyebrow){max-width:760px;color:var(--ink-dim);margin:0;font-size:.68rem;line-height:1.6}.visual-source-heading>span{color:#8edbd7;font:.55rem var(--font-mono), monospace;white-space:nowrap;border:1px solid #4fd7d14d;padding:7px 9px}.visual-source-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;display:grid}.visual-source-card{border:1px solid var(--line);background:#030f099e;padding:17px;position:relative;overflow:hidden}.visual-source-card:before{content:"";background:#4fd7d1;height:2px;position:absolute;inset:0 0 auto}.visual-source-card[data-tone=limited]:before{background:#ffbd59}.visual-source-card[data-tone=waiting]:before{background:#9db0a6}.visual-source-card[data-tone=ready]:before{background:var(--brand)}.visual-source-card header{align-items:center;gap:11px;display:flex}.visual-source-icon{color:#4fd7d1;background:#4fd7d10f;border:1px solid #4fd7d157;border-radius:50%;flex:none;place-items:center;width:38px;height:38px;display:grid}.visual-source-icon[data-category=question]{color:#ff92b7;background:#ff92b70f;border-color:#ff92b761}.visual-source-icon[data-category=board]{color:#67c8ff;background:#67c8ff0f;border-color:#67c8ff61}.visual-source-icon[data-category=sent]{color:#b7a0ff;background:#b7a0ff0f;border-color:#b7a0ff61}.visual-source-card header strong{font-size:.65rem}.visual-source-card header small{color:#ffcf7c;font:.51rem var(--font-mono), monospace;margin-top:4px;display:block}.visual-source-card[data-tone=ready] header small{color:var(--brand)}.visual-source-card h3{overflow-wrap:anywhere;margin:15px 0 6px;font-size:.72rem}.visual-source-card>p{min-height:54px;color:var(--ink-dim);-webkit-line-clamp:3;-webkit-box-orient:vertical;margin:0;font-size:.62rem;line-height:1.55;display:-webkit-box;overflow:hidden}.visual-confidence{border-top:1px solid var(--line);grid-template-columns:minmax(0,1fr) 110px;align-items:center;gap:12px;margin-top:12px;padding-top:11px;display:grid}.visual-confidence span{color:#9ddcff;font:.52rem var(--font-mono), monospace}.visual-confidence meter{accent-color:#4fd7d1;width:100%;height:8px}.visual-confidence i{background:repeating-linear-gradient(90deg,#9db0a64d 0 8px,#0000 8px 12px);height:4px}.visual-topic-list{flex-wrap:wrap;gap:5px;margin-top:10px;display:flex}.visual-topic-list span{color:#8edbd7;background:#4fd7d10a;border:1px solid #4fd7d133;padding:4px 6px;font-size:.49rem}.visual-reading-detail{color:var(--ink-mute);margin:11px 0;font-size:.54rem;line-height:1.5;display:block}.visual-source-card>a,.visual-no-link{border:1px solid var(--line-strong);color:#9ddcff;place-items:center;min-height:36px;padding:0 10px;font-size:.55rem;display:inline-grid}.visual-no-link{color:var(--ink-mute)}.visual-safety-note{background:#ffbd590a;border:1px solid #ffbd5933;align-items:center;gap:10px;margin-top:12px;padding:11px 13px;display:flex}.visual-safety-note>span{color:#ffbd59;border:1px solid #ffbd5961;border-radius:50%;flex:none;place-items:center;width:28px;height:28px;display:grid}.visual-safety-note p{color:var(--ink-dim);margin:0;font-size:.58rem;line-height:1.5}.visual-source-empty{border:1px dashed var(--line-strong);align-items:center;gap:13px;padding:18px;display:flex}.visual-source-empty>span{border:1px solid var(--line-strong);color:#4fd7d1;border-radius:50%;flex:none;place-items:center;width:40px;height:40px;display:grid}.visual-source-empty strong{font-size:.68rem}.visual-source-empty p{color:var(--ink-mute);margin:5px 0 0;font-size:.58rem;line-height:1.5}.material-visual-note{color:#9ddcff!important}.material-visual-note[data-tone=limited]{color:#ffcf7c!important}.material-visual-note[data-tone=ready]{color:var(--brand)!important}.resume-checkpoint>button:focus-visible,.memory-card button:focus-visible,.visual-source-card>a:focus-visible{outline:2px solid var(--ink);outline-offset:3px}@media (width<=900px){.today-mission{grid-template-columns:auto 1fr}.mission-cta{grid-column:1/-1;width:100%}.orbit-layout,.replay-layout{grid-template-columns:1fr}.orbit-map{width:min(420px,100%);margin:0 auto}.replay-sources{order:-1}.request-options{grid-template-columns:repeat(3,1fr)}.photo-resolution{grid-template-columns:1fr}.personal-best-grid,.request-history,.weekly-summary-list,.visual-source-grid{grid-template-columns:repeat(2,1fr)}.resume-checkpoint{grid-template-columns:50px minmax(0,1fr)}.resume-checkpoint>button{grid-column:1/-1;width:100%}}@media (width<=620px){.today-mission{grid-template-columns:1fr;gap:15px;padding:20px}.today-mission-orbit{width:54px;height:54px}.today-mission-plan{flex-direction:column;align-items:flex-start}.today-mission-plan i{display:none}.orbit-heading,.error-notebook-heading,.replay-heading{flex-direction:column;align-items:flex-start}.orbit-legend{justify-content:flex-start}.orbit-map{min-height:290px}.orbit-detail,.error-detail{padding-left:18px}.error-actions>span{width:100%}.replay-heading label{width:100%;min-width:0}.replay-chapters li{grid-template-columns:70px 1fr}.replay-chapters button{grid-column:2;width:fit-content}.assistant-intro{display:grid}.request-options{grid-template-columns:repeat(2,1fr)}.personal-best-grid,.request-history,.weekly-summary-list{grid-template-columns:1fr}.weekly-summaries-heading,.memory-warmup-heading,.visual-source-heading{flex-direction:column;align-items:flex-start}.visual-source-grid{grid-template-columns:1fr}.memory-actions button:last-child{width:100%;margin-left:0}.visual-confidence{grid-template-columns:1fr}.resume-checkpoint{grid-template-columns:1fr;padding:18px}.confidence-selector>div{grid-template-columns:1fr}.accessibility-dock{bottom:76px;left:10px;right:auto}.learning-arrival-toast{left:0;right:auto}.accessibility-trigger b{display:none}.accessibility-trigger{padding-right:5px}.accessibility-panel{width:min(300px,100vw - 20px);left:0;right:auto}}@media (width<=360px){.portal-header .quanta-brand>span,.teacher-header .quanta-brand>span{display:none}.portal-stats,.teacher-account{gap:7px}.main-site-link{padding-right:8px}}