@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,math,Times New Roman,serif;position:relative}.katex *{border-color:currentColor;-ms-high-contrast-adjust:none!important}.katex .katex-version:after{content:"0.19.1"}.katex .katex-mathml{clip-path:inset(50%);border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.katex .katex-html>.katex-newline{display:block}.katex .katex-base{white-space:nowrap;width:min-content;position:relative}.katex .katex-base,.katex .katex-strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;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 .katex-vbox{flex-direction:column;align-items:baseline;display:inline-flex}.katex .katex-thinbox{flex-direction:row;width:0;max-width:0;display:inline-flex}.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 .katex-hdashline,.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-rule,.katex .katex-underline .underline-line,.katex .mfrac .frac-line{min-height:1px}.katex .mspace{display:inline-block}.katex .katex-smash{line-height:0;display:inline}.katex .clap,.katex .llap,.katex .rlap{width:0;position:relative}.katex .clap>.katex-inner,.katex .llap>.katex-inner,.katex .rlap>.katex-inner{position:absolute}.katex .clap>.katex-fix,.katex .llap>.katex-fix,.katex .rlap>.katex-fix{display:inline-block}.katex .llap>.katex-inner{right:0}.katex .clap>.katex-inner,.katex .rlap>.katex-inner{left:0}.katex .clap>.katex-inner>span{margin-left:-50%;margin-right:50%}.katex .katex-rule{border:0 solid;display:inline-block;position:relative}.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-underline .underline-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .katex-hdashline{border-bottom-style:dashed;width:100%;display:inline-block}.katex .sqrt>.katex-root{margin-left:.277778em;margin-right:-.555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .katex-sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .katex-sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .katex-sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .katex-sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .katex-sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .katex-sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .katex-sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .katex-sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .katex-sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .katex-sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .katex-sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .katex-sizing.reset-size2.size1{font-size:.833333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .katex-sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .katex-sizing.reset-size2.size3{font-size:1.16667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .katex-sizing.reset-size2.size4{font-size:1.33333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .katex-sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .katex-sizing.reset-size2.size6{font-size:1.66667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .katex-sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .katex-sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .katex-sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .katex-sizing.reset-size2.size10{font-size:3.45667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .katex-sizing.reset-size2.size11{font-size:4.14667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .katex-sizing.reset-size3.size1{font-size:.714286em}.katex .fontsize-ensurer.reset-size3.size2,.katex .katex-sizing.reset-size3.size2{font-size:.857143em}.katex .fontsize-ensurer.reset-size3.size3,.katex .katex-sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .katex-sizing.reset-size3.size4{font-size:1.14286em}.katex .fontsize-ensurer.reset-size3.size5,.katex .katex-sizing.reset-size3.size5{font-size:1.28571em}.katex .fontsize-ensurer.reset-size3.size6,.katex .katex-sizing.reset-size3.size6{font-size:1.42857em}.katex .fontsize-ensurer.reset-size3.size7,.katex .katex-sizing.reset-size3.size7{font-size:1.71429em}.katex .fontsize-ensurer.reset-size3.size8,.katex .katex-sizing.reset-size3.size8{font-size:2.05714em}.katex .fontsize-ensurer.reset-size3.size9,.katex .katex-sizing.reset-size3.size9{font-size:2.46857em}.katex .fontsize-ensurer.reset-size3.size10,.katex .katex-sizing.reset-size3.size10{font-size:2.96286em}.katex .fontsize-ensurer.reset-size3.size11,.katex .katex-sizing.reset-size3.size11{font-size:3.55429em}.katex .fontsize-ensurer.reset-size4.size1,.katex .katex-sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .katex-sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .katex-sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .katex-sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .katex-sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .katex-sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .katex-sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .katex-sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .katex-sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .katex-sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .katex-sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .katex-sizing.reset-size5.size1{font-size:.555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .katex-sizing.reset-size5.size2{font-size:.666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .katex-sizing.reset-size5.size3{font-size:.777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .katex-sizing.reset-size5.size4{font-size:.888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .katex-sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .katex-sizing.reset-size5.size6{font-size:1.11111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .katex-sizing.reset-size5.size7{font-size:1.33333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .katex-sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .katex-sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .katex-sizing.reset-size5.size10{font-size:2.30444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .katex-sizing.reset-size5.size11{font-size:2.76444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .katex-sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .katex-sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .katex-sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .katex-sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .katex-sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .katex-sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .katex-sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .katex-sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .katex-sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .katex-sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .katex-sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .katex-sizing.reset-size7.size1{font-size:.416667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .katex-sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .katex-sizing.reset-size7.size3{font-size:.583333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .katex-sizing.reset-size7.size4{font-size:.666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .katex-sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .katex-sizing.reset-size7.size6{font-size:.833333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .katex-sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .katex-sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .katex-sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .katex-sizing.reset-size7.size10{font-size:1.72833em}.katex .fontsize-ensurer.reset-size7.size11,.katex .katex-sizing.reset-size7.size11{font-size:2.07333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .katex-sizing.reset-size8.size1{font-size:.347222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .katex-sizing.reset-size8.size2{font-size:.416667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .katex-sizing.reset-size8.size3{font-size:.486111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .katex-sizing.reset-size8.size4{font-size:.555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .katex-sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .katex-sizing.reset-size8.size6{font-size:.694444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .katex-sizing.reset-size8.size7{font-size:.833333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .katex-sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .katex-sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .katex-sizing.reset-size8.size10{font-size:1.44028em}.katex .fontsize-ensurer.reset-size8.size11,.katex .katex-sizing.reset-size8.size11{font-size:1.72778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .katex-sizing.reset-size9.size1{font-size:.289352em}.katex .fontsize-ensurer.reset-size9.size2,.katex .katex-sizing.reset-size9.size2{font-size:.347222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .katex-sizing.reset-size9.size3{font-size:.405093em}.katex .fontsize-ensurer.reset-size9.size4,.katex .katex-sizing.reset-size9.size4{font-size:.462963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .katex-sizing.reset-size9.size5{font-size:.520833em}.katex .fontsize-ensurer.reset-size9.size6,.katex .katex-sizing.reset-size9.size6{font-size:.578704em}.katex .fontsize-ensurer.reset-size9.size7,.katex .katex-sizing.reset-size9.size7{font-size:.694444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .katex-sizing.reset-size9.size8{font-size:.833333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .katex-sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .katex-sizing.reset-size9.size10{font-size:1.20023em}.katex .fontsize-ensurer.reset-size9.size11,.katex .katex-sizing.reset-size9.size11{font-size:1.43981em}.katex .fontsize-ensurer.reset-size10.size1,.katex .katex-sizing.reset-size10.size1{font-size:.24108em}.katex .fontsize-ensurer.reset-size10.size2,.katex .katex-sizing.reset-size10.size2{font-size:.289296em}.katex .fontsize-ensurer.reset-size10.size3,.katex .katex-sizing.reset-size10.size3{font-size:.337512em}.katex .fontsize-ensurer.reset-size10.size4,.katex .katex-sizing.reset-size10.size4{font-size:.385728em}.katex .fontsize-ensurer.reset-size10.size5,.katex .katex-sizing.reset-size10.size5{font-size:.433944em}.katex .fontsize-ensurer.reset-size10.size6,.katex .katex-sizing.reset-size10.size6{font-size:.48216em}.katex .fontsize-ensurer.reset-size10.size7,.katex .katex-sizing.reset-size10.size7{font-size:.578592em}.katex .fontsize-ensurer.reset-size10.size8,.katex .katex-sizing.reset-size10.size8{font-size:.694311em}.katex .fontsize-ensurer.reset-size10.size9,.katex .katex-sizing.reset-size10.size9{font-size:.833173em}.katex .fontsize-ensurer.reset-size10.size10,.katex .katex-sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .katex-sizing.reset-size10.size11{font-size:1.19961em}.katex .fontsize-ensurer.reset-size11.size1,.katex .katex-sizing.reset-size11.size1{font-size:.200965em}.katex .fontsize-ensurer.reset-size11.size2,.katex .katex-sizing.reset-size11.size2{font-size:.241158em}.katex .fontsize-ensurer.reset-size11.size3,.katex .katex-sizing.reset-size11.size3{font-size:.281351em}.katex .fontsize-ensurer.reset-size11.size4,.katex .katex-sizing.reset-size11.size4{font-size:.321543em}.katex .fontsize-ensurer.reset-size11.size5,.katex .katex-sizing.reset-size11.size5{font-size:.361736em}.katex .fontsize-ensurer.reset-size11.size6,.katex .katex-sizing.reset-size11.size6{font-size:.401929em}.katex .fontsize-ensurer.reset-size11.size7,.katex .katex-sizing.reset-size11.size7{font-size:.482315em}.katex .fontsize-ensurer.reset-size11.size8,.katex .katex-sizing.reset-size11.size8{font-size:.578778em}.katex .fontsize-ensurer.reset-size11.size9,.katex .katex-sizing.reset-size11.size9{font-size:.694534em}.katex .fontsize-ensurer.reset-size11.size10,.katex .katex-sizing.reset-size11.size10{font-size:.833601em}.katex .fontsize-ensurer.reset-size11.size11,.katex .katex-sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{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 .katex-accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .katex-accent .accent-body{position:relative}.katex .katex-accent .accent-body:not(.accent-full){width:0}.katex .katex-overlay{display:block}.katex .mtable .vertical-separator{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 .katex-stretchy{width:100%;display:block;position:relative;overflow:hidden}.katex .katex-stretchy:after,.katex .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 .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 .reflectbox{display:inline-block;transform:scaleX(-1)}.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>.katex-tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.katex-tag{left:0;right:auto}.katex-display.fleqn>.katex{text-align:left;padding-left:2em}body{counter-reset:katexEqnNo mmlEqnNo}.school-story{border:1px solid var(--border);background:var(--surface-2);color:var(--text-1);border-radius:14px;min-width:0;margin:30px 0 20px;padding:22px 24px}.school-story-label{letter-spacing:.08em;color:var(--text-2);font-size:.7rem;font-weight:750}.school-story blockquote{letter-spacing:-.03em;overflow-wrap:anywhere;margin:12px 0;font-size:clamp(16px,1.6vw,21px);font-weight:750;line-height:1.65}.school-story p{color:var(--text-2);margin:10px 0;font-size:.85rem;line-height:1.9}.school-story small{color:var(--text-2);margin-top:14px;font-size:.7rem;line-height:1.8;display:block}.school-story.is-compact{margin:20px 0;padding:16px 18px}.school-story.is-compact blockquote{font-size:17px}.school-story.is-compact p{font-size:12px}.school-story.is-compact small{font-size:10px}.v2-auth-story>.school-story{z-index:1;background:#fff9;max-width:560px;position:relative}@media (width<=760px){.school-story{padding:18px}.v2-auth-form>.school-story{margin-top:16px}.school-story blockquote{font-size:17px}}.dad-comic{border-top:1px solid var(--border);margin-top:22px;padding-top:12px}.dad-comic summary{cursor:pointer;padding:6px 0;font-size:.85rem;font-weight:700;line-height:1.8}.dad-comic-panels{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:16px 0;padding:0;list-style:none;display:grid}.dad-comic-panels>li{background:var(--surface);border:1px solid var(--border);border-radius:12px;min-width:0;overflow:hidden}.dad-comic figure{margin:0}.dad-comic-art{aspect-ratio:1;background:#f4ead6;position:relative;overflow:hidden}.dad-comic-art img{object-fit:fill;width:200%;height:200%;position:absolute;top:0;left:0;max-width:none!important}.dad-comic-art.panel-1 img,.dad-comic-art.panel-3 img{left:-100%}.dad-comic-art.panel-2 img,.dad-comic-art.panel-3 img{top:-100%}.dad-comic figcaption{padding:15px 16px 17px}.dad-comic figcaption>strong{color:var(--text-2);margin-bottom:10px;font-size:.76rem;display:block}.dad-comic figcaption p{margin:6px 0;font-size:.82rem;line-height:1.8}.dad-comic figcaption b{min-width:28px;color:var(--text-1);font-size:.7rem;display:inline-block}.school-story .dad-comic-note{font-size:.7rem;line-height:1.8}.school-story.is-compact .dad-comic-panels{grid-template-columns:minmax(0,1fr);gap:12px}@media (width<=600px){.dad-comic-panels{grid-template-columns:minmax(0,1fr)}.dad-comic figcaption{padding:13px}}@media print{.dad-comic{display:none!important}}.toc{flex-direction:column;gap:12px;display:flex}.toc-pages{grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:10px;display:grid}.toc-page{border:1px solid var(--border);background:var(--surface);border-radius:8px;margin:0;overflow:hidden}.toc-page img{aspect-ratio:3/4;object-fit:cover;background:var(--surface-2);width:100%;display:block}.toc-page figcaption{align-items:center;gap:2px;padding:4px 6px;font-size:.8rem;display:flex}.toc-page figcaption span{color:var(--text-2);margin-right:auto;font-weight:600}.toc-add{border:1px dashed var(--baseline);border-radius:8px;flex-direction:column;justify-content:center;gap:8px;min-height:140px;padding:10px;display:flex}.toc-add .btn{justify-content:center}.toc-mini{border:1px solid var(--border);background:var(--surface);cursor:pointer;border-radius:6px;width:26px;height:26px;font-size:.85rem;line-height:1}.toc-mini:disabled{opacity:.35;cursor:default}.toc-mini.danger{color:var(--critical)}.toc-result{border:1px solid var(--accent);border-radius:var(--radius);background:color-mix(in srgb, var(--accent-soft) 45%, var(--surface));flex-direction:column;gap:10px;padding:14px;display:flex}.toc-result h3{color:var(--text-1);margin:6px 0 0}.toc-fields{grid-template-columns:1fr 1fr;gap:10px;display:grid}.toc-units{flex-direction:column;gap:6px;margin:0;padding:0;list-style:none;display:flex}.toc-units li{grid-template-columns:24px minmax(0,1fr) auto;align-items:start;gap:8px;display:grid}.toc-no{text-align:right;color:var(--muted);font-variant-numeric:tabular-nums;padding-top:9px;font-size:.85rem}.toc-unit-body{flex-direction:column;gap:4px;display:flex}.input-sm{padding:5px 10px;font-size:.85rem}.toc-unit-tools{gap:2px;padding-top:6px;display:flex}.toc-plan{background:var(--surface);border-radius:8px;padding:10px 14px}.toc-plan ul{margin:6px 0;padding-left:18px;font-size:.92rem}.plan h1{margin-bottom:2px}.plan .section-head{flex-wrap:wrap;align-items:flex-start;gap:12px}.plan-today{border-radius:var(--radius);background:var(--accent-soft);margin:12px 0 20px;padding:16px 18px}.plan-today h2{font-size:1.05rem}.plan-today-list{flex-direction:column;gap:6px;margin:0;padding:0;list-style:none;display:flex}.plan-today-list li{flex-wrap:wrap;align-items:baseline;gap:4px 10px;display:flex}.plan-time{font-variant-numeric:tabular-nums;color:var(--accent);font-weight:600}.plan-editor{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);flex-direction:column;gap:14px;margin-bottom:20px;padding:18px;display:flex}.plan-editor-head{flex-wrap:wrap;align-items:center;gap:8px 14px;display:flex}.plan-editor-head .seg{margin:0}.plan-fields{grid-template-columns:minmax(0,2fr) minmax(0,1fr) minmax(0,1fr);gap:10px;display:grid}.plan-grid{grid-template-columns:repeat(7,minmax(0,1fr));gap:6px;display:grid}.plan-day{background:var(--surface-2);border-radius:8px;flex-direction:column;gap:6px;min-height:120px;padding:8px;display:flex}.plan-day.today{outline:2px solid var(--accent);outline-offset:-2px}.plan-day-name{text-align:center;font-size:.9rem;font-weight:600}.plan-slot{background:var(--surface);border-left:3px solid var(--series-1);border-radius:6px;flex-direction:column;min-width:0;padding:6px 26px 6px 8px;font-size:.85rem;display:flex;position:relative}.plan-slot strong{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.plan-slot .toc-mini{width:20px;height:20px;position:absolute;top:4px;right:4px}.plan-add{flex-wrap:wrap;align-items:center;gap:6px;display:flex}.plan-add .input{width:auto}.plan-min{width:80px!important}.plan-auto{border:1px solid var(--border);border-radius:8px;padding:8px 12px}.plan-auto summary{cursor:pointer;font-weight:600}.plan-auto-body{flex-direction:column;gap:10px;margin-top:10px;display:flex}.plan-auto-row{flex-wrap:wrap;align-items:flex-end;gap:10px;display:flex}.plan-auto-row .field{width:130px}.plan-list{flex-direction:column;gap:12px;display:flex}.plan-card{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);padding:14px 16px}.plan-card.active{border-color:var(--accent)}.plan-card header{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:10px;display:flex}.plan-card .badge{margin-left:6px}.plan-week{grid-template-columns:repeat(7,minmax(0,1fr));gap:6px;margin-top:12px;display:grid}.plan-week-day{flex-direction:column;gap:4px;min-width:0;display:flex}.plan-chip{background:var(--accent-soft);text-overflow:ellipsis;white-space:nowrap;border-radius:6px;padding:3px 6px;font-size:.8rem;overflow:hidden}.plan-pace{margin-top:14px}.plan-pace h3{color:var(--text-1);font-size:.95rem}.home-plan{border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);margin:0 0 20px;padding:14px 16px}.home-plan h2{justify-content:space-between;align-items:baseline;gap:10px;font-size:1rem;display:flex}.home-plan h2 a{font-size:.85rem;font-weight:400}@media (width<=860px){.toc-fields,.plan-fields,.plan-grid{grid-template-columns:minmax(0,1fr)}.plan-day{flex-flow:wrap;align-items:center;min-height:0}.plan-day-name{width:28px}.plan-slot{flex:140px}.plan-week{grid-template-columns:repeat(7,minmax(0,1fr));gap:3px}.plan-chip{padding:2px 4px;font-size:.7rem}}.parent-support{padding-bottom:100px}.support-eyebrow{letter-spacing:.16em;color:var(--text-2);font-size:.7rem;font-weight:750}.parent-support>header{margin-bottom:24px}.parent-support>header h1{margin-top:10px}.support-beta{background:var(--accent-soft);border:1px solid var(--border);border-radius:12px;padding:16px 20px;font-size:.9rem}.support-steps{counter-reset:support-step;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin:24px 0;padding:0;list-style:none;display:grid}.support-steps li{counter-increment:support-step;border-bottom:2px solid var(--border);padding:12px;font-size:.8rem;line-height:1.6}.support-steps li:before{content:counter(support-step,decimal-leading-zero);color:var(--accent);margin-bottom:5px;font-weight:750;display:block}.support-steps small{color:var(--text-2);display:block}.support-student{border:1px solid var(--border);background:var(--surface);border-radius:14px;margin:20px 0;padding:24px}.support-student h2{font-size:1.15rem}.support-stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:22px 0;display:grid}.support-stats>div{min-width:0}.support-stats dt{color:var(--text-2);font-size:.78rem}.support-stats dd{margin:7px 0;font-size:1.8rem;font-weight:750;line-height:1.2}.support-stats small{margin-left:5px;font-size:.8rem;font-weight:400}.support-reason{font-size:.9rem;line-height:1.8}.support-policy{padding-left:20px;font-size:.9rem;line-height:1.9}.support-actions{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.support-share .input{font-size:.8rem}.support-entry{border:1px solid var(--border);color:var(--text-1);background:var(--surface);border-radius:12px;margin:20px 0;padding:16px 20px;text-decoration:none;display:block}.support-entry strong{font-size:.9rem;display:block}.support-entry small{color:var(--text-2);margin-top:5px;font-size:.78rem;display:block}.support-steps{grid-template-columns:repeat(3,minmax(0,1fr))}@media (width<=600px){.support-steps{grid-template-columns:repeat(2,minmax(0,1fr))}.support-student{padding:18px}.support-stats{gap:8px}.support-stats dt{font-size:.7rem}.support-stats dd{font-size:1.5rem}}.cr{z-index:60;background:var(--page);padding:env(safe-area-inset-top) 0 env(safe-area-inset-bottom);overscroll-behavior:contain;flex-direction:column;display:flex;position:fixed;inset:0}.cr-top{grid-template-columns:auto minmax(0,1fr);align-items:center;gap:4px 12px;width:100%;max-width:720px;margin:0 auto;padding:12px 16px 8px;display:grid}.cr-title{flex-direction:column;min-width:0;display:flex}.cr-title strong{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.cr-bar{background:var(--grid);border-radius:2px;grid-column:1/-1;height:4px;overflow:hidden}.cr-bar span{background:var(--accent);height:100%;transition:width .25s;display:block}.cr-error{text-align:center}.cr-empty{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:12px;padding:24px 20px;display:flex}.cr-empty h2{margin:0}.cr-tally{flex-wrap:wrap;justify-content:center;gap:8px;margin:0;padding:0;list-style:none;display:flex}.cr-tally li{border:1px solid var(--border);background:var(--surface);border-radius:999px;padding:6px 12px}.cr-stage{perspective:1400px;flex:1;width:100%;max-width:560px;min-height:0;margin:0 auto;padding:8px 16px;position:relative}.cr-card{touch-action:pan-y;-webkit-user-select:none;user-select:none;cursor:grab;outline:none;transition:transform .2s ease-out,opacity .2s ease-out;position:absolute;inset:8px 16px}.cr-card.is-drag{cursor:grabbing;transition:none}.cr-card:focus-visible .cr-face{box-shadow:0 0 0 3px var(--accent)}.cr-behind{background:var(--surface-2);border:1px solid var(--border);pointer-events:none;border-radius:18px;transform:scale(.95)translateY(10px)!important}.cr-inner{height:100%;transform-style:preserve-3d;transition:transform .35s cubic-bezier(.3,.7,.3,1);position:relative}.cr-inner.flipped{transform:rotateY(180deg)}.cr-face{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);backface-visibility:hidden;border-radius:18px;flex-direction:column;gap:12px;padding:18px 20px;display:flex;position:absolute;inset:0;overflow:auto}.cr-back{background:var(--surface);border-color:var(--accent);transform:rotateY(180deg)}.cr-meta{align-items:center;gap:8px;min-width:0;display:flex}.cr-meta .muted{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.cr-kind{background:var(--accent-soft);color:var(--accent);border-radius:999px;flex:none;padding:2px 8px;font-weight:600}.cr-dday{border:1px solid var(--critical);color:var(--critical);border-radius:999px;flex:none;margin-left:auto;padding:2px 8px;font-weight:700}.cr-text{text-align:center;word-break:keep-all;overflow-wrap:anywhere;flex-direction:column;flex:1;justify-content:center;font-size:1.3rem;line-height:1.55;display:flex}.cr-text.long{text-align:left;justify-content:flex-start;font-size:1rem}.cr-text .md p{margin:.3em 0}.cr-tip{text-align:center}.cr-hint{background:var(--surface-2);color:var(--text-2);border-radius:10px;margin:0;padding:8px 12px}.cr-stamp{z-index:2;pointer-events:none;border:3px solid;border-radius:8px;padding:4px 12px;font-size:1.2rem;font-weight:800;transition:opacity .1s;position:absolute;top:18px}.cr-stamp-good{color:var(--good);left:18px;transform:rotate(-12deg)}.cr-stamp-again{color:var(--series-2);right:18px;transform:rotate(12deg)}.cr-actions{width:100%;max-width:560px;margin:0 auto;padding:8px 16px 14px}.cr-quick,.cr-grades{gap:8px;display:grid}.cr-quick{grid-template-columns:1fr 1.2fr 1fr}.cr-grades{grid-template-columns:repeat(4,minmax(0,1fr))}.cr-grade{border:1px solid var(--border);background:var(--surface);min-height:54px;color:var(--text-1);font:inherit;cursor:pointer;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:2px;padding:6px 4px;display:flex}.cr-grade .small{color:var(--text-2)}.cr-g0{border-color:color-mix(in srgb, var(--series-2) 55%, transparent)}.cr-g0 strong{color:var(--series-2)}.cr-g1 strong{color:var(--series-4)}.cr-g2{border-color:color-mix(in srgb, var(--good) 55%, transparent)}.cr-g2 strong{color:var(--good-text)}.cr-g3 strong{color:var(--accent)}.cr-flip{min-height:54px;font-size:1.05rem}.cr-help{text-align:center;margin:8px 0 0}@media (pointer:coarse){.cr-help{display:none}}@media (prefers-reduced-motion:reduce){.cr-inner,.cr-card{transition:none}}.cards-panel{flex-direction:column;gap:14px;display:flex}.cards-start{border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);flex-wrap:wrap;align-items:center;gap:10px;padding:14px 16px;display:flex}.cards-start .cards-count{flex-direction:column;margin-right:auto;display:flex}.cards-start .cards-count strong{font-size:1.4rem}.card-list{grid-template-columns:repeat(auto-fill,minmax(min(100%,280px),1fr));gap:10px;margin:0;padding:0;list-style:none;display:grid}.card-item{border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);flex-direction:column;gap:8px;min-width:0;padding:12px 14px;display:flex}.card-item.off{opacity:.55}.card-item-front{font-weight:600}.card-item-front .md p,.card-item-back .md p{margin:0}.card-item-back{color:var(--text-2);max-height:9.5em;font-size:.94rem;overflow:hidden}.card-item-foot{flex-wrap:wrap;align-items:center;gap:6px 10px;margin-top:auto;display:flex}.card-chip{background:var(--surface-2);color:var(--text-2);border-radius:999px;padding:2px 8px}.card-chip.weak{background:color-mix(in srgb, var(--series-2) 16%, transparent);color:var(--series-2)}.card-chip.known{background:color-mix(in srgb, var(--good) 14%, transparent);color:var(--good-text)}.card-item-foot .link-btn:first-of-type{margin-left:auto}.card-edit{flex-direction:column;gap:8px;display:flex}.card-edit textarea{resize:vertical;min-height:70px}.cards-page{flex-direction:column;gap:18px;display:flex}.cards-hero{border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow);border-radius:16px;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:12px 16px;padding:18px 20px;display:grid}.cards-hero h2{margin:0 0 4px;font-size:1.5rem}.cards-hero .stat-row{flex-wrap:wrap;gap:6px 14px;display:flex}.cards-hero .btn{min-width:140px}.exam-list,.cards-rooms{gap:10px;margin:0;padding:0;list-style:none;display:grid}.exam-item,.cards-room{border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:6px 14px;padding:12px 14px;display:grid}.exam-dday{background:color-mix(in srgb, var(--critical) 12%, transparent);min-width:64px;color:var(--critical);text-align:center;border-radius:10px;padding:6px 8px;font-size:1.1rem;font-weight:800}.exam-dday.later{background:var(--accent-soft);color:var(--accent)}.exam-main,.cards-room-main{flex-direction:column;gap:4px;min-width:0;display:flex}.exam-actions{flex-wrap:wrap;justify-content:flex-end;gap:6px;display:flex}.cards-meter{background:var(--grid);border-radius:3px;height:6px;overflow:hidden}.cards-meter span{background:var(--good);height:100%;display:block}.cards-room-count{text-align:center;min-width:44px}.cards-room-count strong{font-size:1.25rem;display:block}.exam-form{border-radius:var(--radius);border:1px dashed var(--border);background:var(--surface);flex-direction:column;gap:10px;padding:14px 16px;display:flex}.exam-form .row{grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:10px;display:grid}.exam-rooms{flex-wrap:wrap;gap:6px 14px;display:flex}@media (width<=640px){.cards-hero{grid-template-columns:minmax(0,1fr)}.cards-hero .btn{width:100%}.exam-item,.cards-room{grid-template-columns:auto minmax(0,1fr)}.exam-actions,.cards-room>.btn{grid-column:1/-1;justify-content:stretch}.exam-actions .btn,.cards-room>.btn{flex:1}.exam-form .row{grid-template-columns:minmax(0,1fr)}}.exam-form fieldset{border:1px solid var(--border);border-radius:8px;margin:0;padding:8px 12px 10px}.exam-form legend{padding:0 4px}.cards-panel .note-actions{flex-wrap:wrap}.cards-panel .btn{white-space:normal}.cr-stage{flex:0 590px;height:min(590px,100vh - 190px);margin:auto}.cr-text.latin{word-spacing:.14em;letter-spacing:.01em;font-family:ui-serif,Georgia,Times New Roman,serif}.cr-text.latin .md p{white-space:pre-wrap}@media (width<=700px){.cr-stage{height:min(560px,100vh - 176px);padding:8px 12px}.cr-card{inset:8px 12px}.cr-face{padding:16px}.cr-text{font-size:1.16rem}}.curriculum-lesson{border:1px solid var(--line,#deddd8);background:linear-gradient(145deg,#fcfdfb,#f4f7f1);border-radius:18px;padding:22px;overflow:hidden}.cl-head{justify-content:space-between;align-items:start;gap:18px;display:flex}.cl-kicker,.cl-step{letter-spacing:.12em;color:#277660;font-size:11px;font-weight:800}.cl-head h2{margin:5px 0;font-size:23px}.cl-head p{color:var(--muted,#68706c);margin:0}.cl-length{white-space:nowrap;color:#456456;border:1px solid #cbd8cc;border-radius:999px;padding:6px 9px;font-size:12px}.cl-stage{color:#f9fff8;background:radial-gradient(circle at 72% 35%,#5eab8e,#214e42 60%,#16362f);border-radius:14px;min-height:280px;margin:20px 0;position:relative;overflow:hidden}.cl-grid{opacity:.2;background-image:linear-gradient(#d7ffe550 1px,#0000 1px),linear-gradient(90deg,#d7ffe550 1px,#0000 1px);background-size:32px 32px;position:absolute;inset:0}.cl-copy{z-index:2;max-width:58%;padding:44px 36px;position:relative}.cl-copy h3{margin:7px 0 13px;font-size:32px;line-height:1.15}.cl-copy p{margin:0;font-size:17px;line-height:1.75}.cl-orb{filter:blur(1px);opacity:.55;border-radius:50%;position:absolute}.cl-orb-a{background:#e8cf6c;width:190px;height:190px;animation:5s ease-in-out infinite cl-float;top:24px;right:9%}.cl-orb-b{background:#8fe1c1;width:90px;height:90px;animation:4s ease-in-out .5s infinite cl-float;bottom:23px;right:28%}.cl-orb-c{background:#fd9c78;width:44px;height:44px;animation:4.5s ease-in-out 1s infinite cl-float;top:70px;right:45%}.cl-visual{z-index:1;width:235px;height:120px;position:absolute;bottom:34px;right:14%}.cl-visual i{border:4px solid #f6ffec;border-radius:50%;width:43px;height:43px;animation:2.8s ease-in-out infinite cl-pulse;display:block;position:absolute}.cl-visual i:first-child{top:38px;left:0}.cl-visual i:nth-child(2){animation-delay:.4s;top:0;right:16px}.cl-visual i:nth-child(3){animation-delay:.8s;bottom:0;right:0}.cl-visual b{border-top:3px dashed #d6f4b6;position:absolute;top:58px;left:35px;right:25px;transform:rotate(-13deg)}.cl-energy .cl-visual i{background:#e7a74d;border-radius:10px;transform:rotate(45deg)}.cl-weather .cl-visual i{background:#d6f7ff;border:0;box-shadow:30px 8px #d6f7ff,60px 0 #d6f7ff}.cl-life .cl-visual i{background:#99db8c;border-radius:60% 0;transform:rotate(45deg)}.cl-controls{justify-content:space-between;align-items:center;gap:12px;display:flex}.cl-dots{gap:8px;display:flex}.cl-dots button{background:#b6c6bb;border:0;border-radius:50%;width:9px;height:9px;padding:0}.cl-dots button.on{background:#24725e;border-radius:9px;width:25px}.cl-note{margin:17px 0 0}@keyframes cl-float{50%{transform:translateY(-12px)translate(5px)}}@keyframes cl-pulse{50%{opacity:.65;scale:1.1}}@media (width<=720px){.curriculum-lesson{padding:16px}.cl-head{display:block}.cl-length{margin-top:10px;display:inline-block}.cl-copy{max-width:100%;padding:31px 22px}.cl-copy h3{font-size:26px}.cl-copy p{font-size:15px}.cl-visual{opacity:.35;bottom:20px;right:4%}.cl-controls{flex-direction:column;align-items:start}.cl-controls .note-actions{flex-wrap:wrap}}@media (prefers-reduced-motion:reduce){.cl-orb,.cl-visual i{animation:none}}.cl-timeline{z-index:3;background:#ffffff20;height:4px;position:absolute;top:0;left:0;right:0}.cl-timeline i{background:#dbef9a;height:100%;transition:width .55s;display:block}.cl-cue{color:#dcf3c8;background:#163d3366;border:1px solid #ffffff45;border-radius:999px;margin-top:18px;padding:5px 9px;display:inline-block}.cl-stage .cl-copy{animation:.55s both cl-scene-in}.cl-enter-1 .cl-copy{animation-delay:80ms}.cl-enter-2 .cl-copy{animation-delay:.12s}.cl-math .cl-orb-a{background:#6ed5d0}.cl-math .cl-orb-b{background:#f7c96d}.cl-math .cl-orb-c{background:#f78d87}.cl-math .cl-visual em{color:#f5ffdb;font:700 54px/1 Georgia,serif;animation:3.2s ease-in-out infinite cl-formula;position:absolute;top:-8px;left:48px}.cl-math .cl-visual i{border-color:#c8f7ee;border-radius:4px}.cl-math .cl-visual b{border-color:#f8d881;transform:rotate(-25deg)}@keyframes cl-scene-in{0%{opacity:0;transform:translateY(15px)}to{opacity:1;transform:none}}@keyframes cl-formula{50%{opacity:.65;transform:translate(18px,8px)scale(1.08)}}@media (prefers-reduced-motion:reduce){.cl-stage .cl-copy,.cl-math .cl-visual em{animation:none}.cl-timeline i{transition:none}}.cl-copy .md p{color:inherit;margin:0;font-size:17px;line-height:1.75}.cl-copy .md .katex{color:#fff}.cl-math{background:radial-gradient(circle at 82% 24%,#316d91 0 11%,#0000 12%),linear-gradient(135deg,#142545,#1d577d 62%,#367c86)}.cl-math .cl-visual{width:350px;height:180px;bottom:25px;right:8%}.cl-axis{background:#d7f3e7cc;position:absolute}.cl-axis-x{height:2px;bottom:30px;left:15px;right:12px}.cl-axis-y{width:2px;top:10px;bottom:18px;left:55px}.cl-parabola{filter:drop-shadow(0 0 7px #f6cc7066);border-top:4px solid #f6cc70;border-bottom:0;border-left:0;border-right:4px solid #f6cc70;border-radius:0 100% 0 0;width:142px;height:110px;animation:3.4s ease-in-out infinite cl-curve;position:absolute;bottom:32px;left:96px;transform:rotate(-45deg)}.cl-formula{background:#0e284bb5;border:1px solid #d8f5e688;border-radius:10px;padding:8px 12px;position:absolute;top:5px;right:6px;box-shadow:0 8px 20px #081a3055}.cl-formula .md{margin:0}.cl-formula .katex{color:#fff;font-size:1.15em}@keyframes cl-curve{50%{filter:drop-shadow(0 0 14px #f6cc70aa);transform:rotate(-45deg)scale(1.04)}}@media (width<=720px){.cl-copy .md p{font-size:15px}.cl-math .cl-visual{opacity:.38;width:270px}}@media (prefers-reduced-motion:reduce){.cl-parabola{animation:none}}.buddy-timer{z-index:60;font-size:14px;position:fixed;bottom:18px;right:18px}.buddy-handle{color:#184e3b;background:#fffdf6;border:1px solid #b8d3c4;border-radius:999px;padding:10px 14px;font-weight:700;box-shadow:0 8px 24px #163f3024}.buddy-live{color:#21a66c;animation:1.5s infinite buddy-pulse}.buddy-live-companion{cursor:pointer;color:#245641;font:inherit;text-align:left;background:0 0;border:0;align-items:center;gap:7px;padding:0;display:flex;position:absolute;bottom:48px;right:0}.buddy-avatar{background:linear-gradient(145deg,#e5f7df,#cfe9d8);border:2px solid #fff;border-radius:50%;place-items:center;width:48px;height:48px;font-size:28px;animation:2.4s ease-in-out infinite buddy-float;display:grid;box-shadow:0 5px 15px #173c2e35}.buddy-online{background:#23b26f;border:2px solid #fff;border-radius:50%;width:12px;height:12px;position:absolute;bottom:2px;left:34px}.buddy-speech{white-space:nowrap;text-overflow:ellipsis;background:#fffdf8;border:1px solid #c9dfd0;border-radius:14px;max-width:142px;padding:7px 10px;font-size:.77rem;font-weight:700;overflow:hidden;box-shadow:0 5px 15px #173c2e1c}.buddy-more{color:#fff;background:#e64946;border:2px solid #fff;border-radius:999px;place-items:center;min-width:20px;height:20px;font-size:.66rem;font-weight:800;display:grid;position:absolute;top:-4px;left:33px}.buddy-body{background:#fffdf8;border:1px solid #cbded0;border-radius:18px;width:min(310px,100vw - 36px);margin:8px 0 0 auto;padding:16px;box-shadow:0 16px 44px #133a2c36}.buddy-title{justify-content:space-between;align-items:center;display:flex}.buddy-clock{letter-spacing:.04em;color:#1d624a;margin:10px 0 2px;font-size:38px;font-weight:800}.buddy-presence{background:#eff9ed;border-radius:10px;padding:9px 10px}.buddy-presence span{margin-right:5px}.buddy-friends{border-top:1px solid #e0e6df;margin-top:12px;padding-top:10px}.buddy-friends label{margin:9px 0;display:block}.buddy-friends .input{margin-top:4px}.buddy-row{border-bottom:1px solid #edf0ed;justify-content:space-between;gap:8px;padding:7px 0;display:flex}@keyframes buddy-pulse{50%{opacity:.35;transform:scale(.8)}}@keyframes buddy-float{50%{transform:translateY(-6px)}}@media (prefers-reduced-motion:reduce){.buddy-live,.buddy-avatar{animation:none}}@media (width<=640px){.buddy-live-companion{bottom:50px}.buddy-speech{max-width:112px}}.persistent-lecture-layer{min-width:0}.persistent-lecture-layer.is-floating{z-index:70;color:#17212d;background:#fff;border:1px solid #475569;border-radius:12px;width:min(400px,100vw - 24px);max-height:calc(100dvh - 24px);position:fixed;bottom:16px;right:16px;overflow:auto;box-shadow:0 12px 40px #0005}.persistent-lecture-layer.is-floating.is-left{left:12px;right:auto}.floating-lecture-toolbar{color:#fff;background:#17212d;align-items:center;gap:6px;padding:6px 10px;display:flex}.floating-lecture-toolbar a{color:#fff;flex:1;font-size:12px;font-weight:600}.floating-lecture-toolbar button{color:#fff;cursor:pointer;background:0 0;border:1px solid #ffffff60;border-radius:6px;min-width:34px;min-height:32px}.persistent-lecture-layer.is-floating .lec-page{color:#17212d;background:#fff;height:auto;min-height:0}.persistent-lecture-layer.is-floating .lec-head{min-height:0;padding:7px 10px}.persistent-lecture-layer.is-floating .lec-head-main{min-width:0}.persistent-lecture-layer.is-floating .lec-head h1{white-space:nowrap;text-overflow:ellipsis;margin:0;font-size:13px;overflow:hidden}.persistent-lecture-layer.is-floating .lec-head-main>:not(h1),.persistent-lecture-layer.is-floating .lec-head-actions,.persistent-lecture-layer.is-floating .lec-right,.persistent-lecture-layer.is-floating .lec-left>:not(.lec-stage),.persistent-lecture-layer.is-floating .lec-nowbar{display:none}.persistent-lecture-layer.is-floating .lec-body,.persistent-lecture-layer.is-floating .lec-left{min-height:0;padding:0;display:block;overflow:visible}.persistent-lecture-layer.is-floating .lec-stage{margin:0;padding:0;position:static}.persistent-lecture-layer.is-floating .lec-video{aspect-ratio:16/9;border-radius:0;width:100%;min-height:200px}@media (width<=760px){.persistent-lecture-layer.is-floating{right:12px;bottom:calc(76px + env(safe-area-inset-bottom,0px));max-height:calc(100dvh - 100px)}}@media (height<=480px){.persistent-lecture-layer.is-floating{max-height:calc(100dvh - 24px);bottom:12px}}@media print{.persistent-lecture-layer.is-floating{display:none}}.study-guide-banner{isolation:isolate;background:radial-gradient(at 20% 100%,#536c49 0,#0000 53%),#263e32;border:1px solid #536647;border-radius:22px;grid-template-columns:260px minmax(0,1fr);align-items:center;min-height:254px;display:grid;position:relative;overflow:hidden}.study-guide-banner-art{z-index:1;align-self:stretch;min-height:254px;display:block;position:relative}.study-guide-banner-art>span{border:1px solid #d6e4bd29;border-radius:50%;width:225px;height:225px;position:absolute;bottom:-75px;left:12px;box-shadow:0 0 0 38px #d6e4bd07,0 0 0 76px #d6e4bd05}.study-guide-banner-art img{z-index:1;object-fit:contain;width:202px;height:223px;position:absolute;bottom:-3px;left:50%;transform:translate(-50%)rotate(-5deg)}.study-guide-banner-copy{z-index:1;padding:32px 55px 32px 8px;position:relative}.study-guide-eyebrow{letter-spacing:1.8px;color:#bfcfa8;font-size:9px;font-weight:700;line-height:1.6;display:block}.study-guide-banner h2{letter-spacing:-1px;margin:10px 0;font-size:clamp(23px,3vw,32px);font-weight:700;line-height:1.4;color:#fff8e8!important}.study-guide-banner p{color:#c9d2bf;margin:0;font-size:13px;line-height:1.8}.study-guide-banner-actions{flex-wrap:wrap;align-items:center;gap:22px;margin-top:21px;display:flex}.study-guide-banner-actions button,.study-guide-banner-actions a{font:inherit;cursor:pointer;align-items:center;gap:18px;min-height:44px;font-size:12px;font-weight:650;text-decoration:none;display:inline-flex}.study-guide-banner-actions button{background:#e0e6c9;border:1px solid #e0e6c9;border-radius:9px;padding:10px 16px;color:#273d30!important}.study-guide-banner-actions a{color:#e0e6c9!important}.study-guide-banner-actions button:hover{background:#eff3e0}.study-guide-banner-actions a:hover{text-decoration:underline}.study-guide-banner-steps{color:#a7b59c;letter-spacing:.4px;margin-top:19px;font-size:9px;display:block}.study-guide-banner-steps i{color:#839879;padding:0 9px;font-style:normal}.study-guide-banner-star{color:#bbcca24d;font-size:55px;font-weight:300;line-height:1;position:absolute;top:27px;right:34px}.study-guide-mobile-break{display:none}.study-guide-widget{z-index:65;color:#263e32;max-width:calc(100vw - 24px);font-family:inherit;position:fixed;bottom:94px;right:24px}.study-guide-panel{overscroll-behavior:contain;color:#263e32;background:#fffef8;border:1px solid #d9e0cf;border-radius:18px;width:360px;max-width:calc(100vw - 32px);max-height:calc(100dvh - 120px);margin-bottom:4px;animation:.18s ease-out study-guide-enter;overflow:auto;box-shadow:0 18px 70px #152c3330}.study-guide-panel header{background:#f1f3e8;border-bottom:1px solid #e7ebdf;align-items:center;gap:11px;padding:18px 18px 13px;display:flex}.study-guide-panel header img{object-fit:contain;flex-shrink:0;width:46px;height:51px}.study-guide-panel header .study-guide-eyebrow{color:#708364;letter-spacing:1.7px;font-size:8px}.study-guide-panel h2{font:inherit;letter-spacing:-.5px;margin:3px 0 0;font-size:17px;font-weight:750;line-height:1.5;color:#263e32!important}.study-guide-panel header>button{color:#65745d;width:36px;height:36px;font:inherit;cursor:pointer;background:0 0;border:0;border-radius:9px;flex-shrink:0;align-self:flex-start;margin-left:auto;font-size:25px}.study-guide-panel header>button:hover{background:#e4e9d8}.study-guide-hello{color:#63715f;margin:17px 20px;font-size:12px;line-height:1.8}.study-guide-topics{gap:6px;padding:0 20px;display:flex}.study-guide-topics button{min-height:38px;font:inherit;white-space:nowrap;color:#61715b;cursor:pointer;background:#fffef8;border:1px solid #dce3d2;border-radius:9px;flex:1;padding:8px;font-size:11px}.study-guide-topics button[aria-pressed=true]{color:#fff9e8;background:#354f3d;border-color:#354f3d}.study-guide-answers{min-height:240px;padding:17px 20px 19px}.study-guide-answers h3{font:inherit;letter-spacing:-.2px;margin:0 0 15px;font-size:14px;font-weight:700;color:#354f3d!important}.study-guide-answers ol{counter-reset:guide-step;flex-direction:column;gap:14px;margin:0 0 20px;padding:0;list-style:none;display:flex}.study-guide-answers li{counter-increment:guide-step;padding-left:34px;font-size:12px;position:relative}.study-guide-answers li:before{content:counter(guide-step,decimal-leading-zero);color:#6d805c;background:#edf0e3;border-radius:8px;place-items:center;width:25px;height:25px;font-size:10px;font-weight:700;display:grid;position:absolute;top:0;left:0}.study-guide-answers li strong{font-size:12px;font-weight:650;display:block}.study-guide-answers li>span{color:#788270;margin-top:3px;font-size:11px;line-height:1.7;display:block}.study-guide-answers details{border-bottom:1px solid #e6eadf;padding:10px 0;font-size:12px}.study-guide-answers summary{cursor:pointer;font-weight:600;line-height:1.7}.study-guide-answers details p{color:#6c7965;margin:9px 0 2px;font-size:11px;line-height:1.9}.study-guide-action{background:#e9eddf;border-radius:9px;justify-content:space-between;align-items:center;gap:10px;min-height:44px;margin-top:17px;padding:12px 14px;font-size:12px;font-weight:650;text-decoration:none;display:flex;color:#354f3d!important}.study-guide-action:hover{background:#dce4ce}.study-guide-text-link{text-underline-offset:3px;margin-top:17px;font-size:11px;text-decoration:underline;display:block;color:#526d48!important}.study-guide-panel-foot{border-top:1px solid #e8ecdf;flex-direction:column;align-items:flex-start;gap:9px;padding:12px 20px 13px;display:flex}.study-guide-panel-foot span{color:#7b8674;font-size:9px;line-height:1.8}.study-guide-panel-foot button{color:#6e7f63;font:inherit;cursor:pointer;text-underline-offset:3px;background:0 0;border:0;min-height:30px;padding:4px 0;font-size:10px;text-decoration:underline}.study-guide-widget :focus-visible,.study-guide-dock :focus-visible,.study-guide-launcher:focus-visible{outline-offset:4px;outline:3px solid #ba7852!important}@keyframes study-guide-enter{0%{opacity:0;transform:translateY(7px)}to{opacity:1;transform:translateY(0)}}@media (width<=760px){.study-guide-banner{border-radius:17px;grid-template-columns:94px minmax(0,1fr);min-height:260px}.study-guide-banner-art{min-height:260px}.study-guide-banner-art img{width:102px;max-width:none;height:106px;top:50%;bottom:auto;transform:translate(-50%,-50%)rotate(-5deg)}.study-guide-banner-art>span{width:170px;height:170px;bottom:-35px;left:-85px}.study-guide-banner-copy{padding:25px 19px 24px 14px}.study-guide-banner h2{letter-spacing:-.8px;margin-top:9px;font-size:23px;line-height:1.45}.study-guide-mobile-break{display:block}.study-guide-banner-copy>.study-guide-eyebrow{letter-spacing:1px;font-size:6px}.study-guide-banner p{font-size:10px;line-height:1.85}.study-guide-banner-actions{gap:5px;margin-top:15px}.study-guide-banner-actions button,.study-guide-banner-actions a{gap:10px;font-size:10px}.study-guide-banner-actions button{padding:9px 12px}.study-guide-banner-actions a{min-height:36px}.study-guide-banner-steps{letter-spacing:0;margin-top:12px;font-size:7px;line-height:1.9}.study-guide-banner-steps i{padding:0 3px}.study-guide-banner-star{font-size:32px;top:14px;right:14px}}@media (prefers-reduced-motion:reduce){.study-guide-panel{animation:none}}@media print{.study-guide-dock,.study-guide-widget{display:none!important}}.study-guide-dock{z-index:64;color:#fff8e8;background:#263e32;border:1px solid #536647;border-radius:15px;width:min(1040px,100% - 48px);max-height:calc(100dvh - 32px);position:fixed;bottom:16px;left:50%;overflow:hidden;transform:translate(-50%);box-shadow:0 7px 32px #142a2d26}.study-guide-dock-bar{background:#263e32;align-items:center;min-height:58px;display:flex}.study-guide-dock-toggle{color:#fff8e8;min-width:0;min-height:58px;font:inherit;text-align:left;cursor:pointer;background:0 0;border:0;flex:1;align-items:center;gap:12px;padding:6px 16px;display:flex}.study-guide-dock-toggle img{object-fit:contain;flex-shrink:0;width:42px;height:44px}.study-guide-dock-toggle strong{letter-spacing:-.2px;font-size:12px;font-weight:650;display:block}.study-guide-dock-toggle small{color:#bdcdb3;margin-top:3px;font-size:10px;display:block}.study-guide-dock-chevron{color:#cfdbb9;margin-left:auto;font-size:22px;line-height:1}.study-guide-dock-dismiss{color:#d5e0c6;width:44px;min-height:44px;font:inherit;cursor:pointer;background:0 0;border:0;border-radius:9px;flex-shrink:0;margin:0 8px 0 0;font-size:24px}.study-guide-dock-toggle:hover,.study-guide-dock-dismiss:hover{background:#ffffff0b}.study-guide-dock.is-expanded .study-guide-dock-bar{border-top:1px solid #e0e6c924}.study-guide-dock .study-guide-banner{border:0;border-radius:0;min-height:0;max-height:calc(100dvh - 120px);overflow:auto}.study-guide-dock .study-guide-banner-art{min-height:245px}#root:has(.study-guide-dock){padding-bottom:84px}html[data-app=v2] .study-guide-dock.is-member{left:calc(50% + var(--v2-guide-sidebar,232px)/2);width:min(1040px,calc(100% - var(--v2-guide-sidebar,232px) - 48px))}:is(body:has(.persistent-lecture-layer.is-floating) .study-guide-dock,body:has(.persistent-lecture-layer.is-floating) .study-guide-widget){display:none}@media (width<=760px){.study-guide-dock,html[data-app=v2] .study-guide-dock.is-member{left:12px;right:12px;bottom:calc(10px + env(safe-area-inset-bottom,0px));border-radius:12px;width:auto;max-height:calc(100dvh - 24px);transform:none}.study-guide-dock.is-member,html[data-app=v2] .study-guide-dock.is-member{bottom:calc(78px + env(safe-area-inset-bottom,0px));max-height:calc(100dvh - 100px)}.study-guide-dock-toggle{gap:9px;padding:6px 10px}.study-guide-dock-toggle strong{font-size:11px}.study-guide-dock-toggle small{font-size:9px}.study-guide-dock-toggle img{width:36px;height:39px}.study-guide-dock-dismiss{width:38px;margin-right:4px}.study-guide-dock .study-guide-banner{max-height:calc(100dvh - 100px)}.study-guide-dock.is-member .study-guide-banner{max-height:calc(100dvh - 170px)}.study-guide-widget{right:12px;bottom:calc(80px + env(safe-area-inset-bottom,0px))}.study-guide-widget.is-member{bottom:calc(148px + env(safe-area-inset-bottom,0px))}.study-guide-panel{width:350px;max-height:calc(100dvh - 100px)}.study-guide-widget.is-member .study-guide-panel{max-height:calc(100dvh - 170px)}}@media (height<=480px){.study-guide-panel,.study-guide-widget.is-member .study-guide-panel{max-height:calc(100dvh - 24px);position:fixed;bottom:12px;right:12px}}@media print{.study-guide-dock,.study-guide-widget{display:none!important}#root:has(.study-guide-dock){padding-bottom:0}}.study-guide-launcher{z-index:65;color:#354f3d;width:112px;font:inherit;cursor:pointer;background:0 0;border:0;border-radius:18px;flex-direction:column;align-items:center;gap:3px;padding:4px;display:flex;position:fixed;bottom:18px;right:24px}.study-guide-launcher img{object-fit:contain;filter:drop-shadow(0 5px 9px #152c3324);width:92px;height:96px;transition:transform .18s}.study-guide-launcher:hover img{transform:translateY(-3px)}.study-guide-launcher>span{white-space:nowrap;background:#fffef8;border:1px solid #d9e0cf;border-radius:20px;padding:4px 9px;font-size:11px;font-weight:650;line-height:1.5;box-shadow:0 3px 12px #152c3312}.study-guide-widget.has-launcher{bottom:158px}body:has(.persistent-lecture-layer.is-floating) .study-guide-launcher{display:none}@media (width<=760px){.study-guide-launcher{right:12px;bottom:calc(12px + env(safe-area-inset-bottom,0px));width:98px}.study-guide-launcher img{width:74px;height:78px}.study-guide-launcher>span{font-size:10px}.study-guide-launcher.is-member{bottom:calc(80px + env(safe-area-inset-bottom,0px))}.study-guide-widget.has-launcher{bottom:calc(132px + env(safe-area-inset-bottom,0px));max-height:calc(100dvh - 144px)}.study-guide-widget.has-launcher.is-member{bottom:calc(200px + env(safe-area-inset-bottom,0px));max-height:calc(100dvh - 212px)}.study-guide-widget.has-launcher .study-guide-panel{max-height:inherit}}@media (height<=480px){.study-guide-widget.has-launcher .study-guide-panel{max-height:calc(100dvh - 24px);position:fixed;bottom:12px;right:12px}}@media (prefers-reduced-motion:reduce){.study-guide-launcher img{transition:none}}@media print{.study-guide-launcher{display:none!important}}.dad-companion,.dad-recall{z-index:63;font-family:var(--font);color:var(--text-1);position:fixed;bottom:20px;left:20px}.dad-launcher{font:inherit;color:inherit;cursor:pointer;background:0 0;border:0;border-radius:16px;flex-direction:column;align-items:center;width:118px;min-height:44px;padding:0 5px;display:flex}.dad-launcher img{object-fit:contain;filter:drop-shadow(0 4px 7px #263e3224);width:100px;height:142px;transition:transform .2s}.dad-launcher:hover img{transform:translateY(-3px)}.dad-launcher>span{color:#354f3d;white-space:nowrap;background:#fffef8;border:1px solid #d4ddcb;border-radius:20px;padding:4px 9px;font-size:10px;line-height:1.6}.dad-launcher i{color:#c76547;font-style:normal}.dad-bubble{color:#354f3d;background:#fffef8;border:1px solid #c7d4bf;border-radius:17px 17px 17px 4px;width:296px;max-width:calc(100vw - 40px);padding:14px;animation:.18s ease-out dad-bubble-appear;position:absolute;bottom:calc(100% + 10px);left:0;box-shadow:0 10px 35px #263e3220}.dad-bubble:after{content:"";background:#fffef8;border-bottom:1px solid #c7d4bf;border-right:1px solid #c7d4bf;width:13px;height:13px;position:absolute;bottom:-8px;left:32px;transform:rotate(45deg)}.dad-bubble header{justify-content:space-between;align-items:center;gap:8px;font-size:11px;font-weight:750;display:flex}.dad-bubble header small{color:#8a6e57;margin-left:4px;font-size:9px;font-weight:500}.dad-bubble header>button{font:inherit;color:#69795c;cursor:pointer;background:0 0;border:0;width:32px;min-height:32px;font-size:21px}.dad-bubble p{margin:10px 0;font-size:13px;line-height:1.85}.dad-note{color:#718365;font-size:10px;line-height:1.7;display:block}.dad-controls{border-top:1px solid #e0e7d8;flex-wrap:wrap;gap:7px;margin-top:12px;padding-top:8px;display:flex}.dad-controls button{font:inherit;color:#506b45;cursor:pointer;text-underline-offset:3px;background:0 0;border:0;min-height:32px;padding:5px 0;font-size:10px;text-decoration:underline}.dad-recall{color:#506b45;font:inherit;cursor:pointer;background:#fffef8;border:1px solid #d4ddcb;border-radius:24px;min-height:36px;padding:8px 13px;font-size:10px}:is(body:has(.study-guide-dock) .dad-companion,body:has(.study-guide-dock) .dad-recall){bottom:94px}:is(html[data-app=v2] body:has(.v2-shell) .dad-companion,html[data-app=v2] body:has(.v2-shell) .dad-recall){left:calc(var(--v2-guide-sidebar,255.2px) + 18px)}.dad-companion :focus-visible,.dad-recall:focus-visible{outline-offset:4px;outline:3px solid #ba7852}@keyframes dad-bubble-appear{0%{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}@media (width<=860px){.dad-companion.is-member,.dad-recall.is-member{bottom:calc(84px + env(safe-area-inset-bottom,0px))}:is(body:has(.study-guide-dock) .dad-companion.is-member,body:has(.study-guide-dock) .dad-recall.is-member){bottom:calc(148px + env(safe-area-inset-bottom,0px))}}@media (width<=760px){.dad-companion,.dad-recall{left:12px}html[data-app=v2] body:has(.v2-shell) .dad-companion{left:12px}html[data-app=v2] body:has(.v2-shell) .dad-recall{left:12px}.dad-launcher{width:94px}.dad-launcher img{width:76px;height:108px}.dad-launcher>span{font-size:9px}.dad-bubble{width:278px;max-width:calc(100vw - 24px)}.dad-bubble p{font-size:12px}}@media (height<=600px){.dad-launcher img{width:60px;height:74px}.dad-bubble{max-height:calc(100dvh - 265px);bottom:calc(100% + 8px);overflow:auto}.dad-bubble:after{display:none}}@media (prefers-reduced-motion:reduce){.dad-launcher img{transition:none}.dad-bubble{animation:none}}@media print{.dad-companion,.dad-recall{display:none!important}}:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--page:#f9f9f7;--surface:#fcfcfb;--surface-2:#f3f2ee;--border:#0b0b0b1a;--text-1:#0b0b0b;--text-2:#52514e;--muted:#898781;--grid:#e1e0d9;--baseline:#c3c2b7;--accent:#2a78d6;--accent-soft:#e6f0fc;--on-accent:#fff;--series-1:#2a78d6;--series-2:#eb6834;--series-3:#1baf7a;--series-4:#eda100;--good:#0ca30c;--good-text:#006300;--critical:#d03b3b;--warning:#fab219;--radius:10px;--shadow:0 1px 2px #0000000a, 0 4px 16px #0000000a;--font:"Pretendard Variable", Pretendard, system-ui, -apple-system, "Segoe UI", sans-serif}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--page:#0d0d0d;--surface:#1a1a19;--surface-2:#232321;--border:#ffffff1a;--text-1:#f0efec;--text-2:#c3c2b7;--muted:#898781;--grid:#2c2c2a;--baseline:#383835;--accent:#3987e5;--accent-soft:#16273d;--series-1:#3987e5;--series-2:#d95926;--series-3:#199e70;--series-4:#c98500;--good-text:#0ca30c;--shadow:none}}:root[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--page:#0d0d0d;--surface:#1a1a19;--surface-2:#232321;--border:#ffffff1a;--text-1:#f0efec;--text-2:#c3c2b7;--muted:#898781;--grid:#2c2c2a;--baseline:#383835;--accent:#3987e5;--accent-soft:#16273d;--series-1:#3987e5;--series-2:#d95926;--series-3:#199e70;--series-4:#c98500;--good-text:#0ca30c;--shadow:none}*{box-sizing:border-box}[hidden]{display:none!important}html,body{background:var(--page);color:var(--text-1);font-family:var(--font);-webkit-font-smoothing:antialiased;word-break:keep-all;overflow-wrap:break-word;margin:0;font-size:15px;line-height:1.6}h1,h2,h3{letter-spacing:-.01em;margin:0 0 .5em;line-height:1.3}h1{font-size:1.6rem}h2{font-size:1.25rem}h3{color:var(--text-2);font-size:1rem}a{color:var(--accent)}button{font:inherit;color:inherit}.muted{color:var(--text-2)}.small{font-size:.85rem}.error,.error-text{color:var(--critical)}.error{border:1px solid color-mix(in srgb, var(--critical) 40%, transparent);background:color-mix(in srgb, var(--critical) 8%, transparent);border-radius:8px;padding:10px 12px}.sr{clip:rect(0 0 0 0);width:1px;height:1px;position:absolute;overflow:hidden}.btn{border:1px solid var(--border);background:var(--surface);cursor:pointer;color:var(--text-1);white-space:nowrap;border-radius:8px;align-items:center;gap:6px;padding:8px 14px;text-decoration:none;display:inline-flex}.btn:hover:not(:disabled){background:var(--surface-2)}.btn:disabled{opacity:.5;cursor:default}.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}.btn-primary:hover:not(:disabled){background:color-mix(in srgb, var(--accent) 88%, black)}.btn-sm{padding:5px 10px;font-size:.85rem}.link-btn{color:var(--accent);cursor:pointer;text-align:left;background:0 0;border:none;padding:0}.link-btn.danger{color:var(--critical)}.input{border:1px solid var(--border);background:var(--surface);width:100%;min-width:0;color:var(--text-1);font:inherit;border-radius:8px;padding:9px 12px}.input:focus,.btn:focus-visible,.chip:focus-visible{outline:2px solid var(--accent);outline-offset:1px}textarea.input{resize:vertical;min-height:52px}.chips{flex-wrap:wrap;gap:8px;display:flex}.chip{border:1px solid var(--border);background:var(--surface);cursor:pointer;border-radius:999px;padding:6px 12px;font-size:.9rem}.chip:hover{background:var(--surface-2)}.chip.on{background:var(--accent-soft);border-color:var(--accent);color:var(--accent);font-weight:600}.seg{background:var(--surface-2);border:1px solid var(--border);border-radius:10px;gap:2px;margin:0 8px 8px 0;padding:3px;display:inline-flex}.seg button{cursor:pointer;color:var(--text-2);background:0 0;border:none;border-radius:7px;padding:7px 16px}.seg button.on{background:var(--surface);color:var(--text-1);font-weight:600;box-shadow:0 1px 2px #00000014}.seg-sm button{padding:4px 12px;font-size:.88rem}.check{cursor:pointer;align-items:flex-start;gap:8px;margin:12px 0;display:flex}.pill{border:1px solid var(--border);background:var(--surface);border-radius:999px;align-items:center;gap:6px;padding:4px 10px;font-size:.85rem;display:inline-flex}.pill.ok span{color:var(--good)}.pill.off{color:var(--muted)}.spinner{border:2px solid var(--grid);border-top-color:var(--accent);vertical-align:-1px;border-radius:50%;width:12px;height:12px;animation:.8s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}@media (prefers-reduced-motion:reduce){.spinner{animation-duration:2.4s}}.topbar{z-index:10;height:calc(56px + env(safe-area-inset-top));padding:env(safe-area-inset-top) max(16px, env(safe-area-inset-right)) 0 max(16px, env(safe-area-inset-left));background:color-mix(in srgb, var(--surface) 92%, transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:16px;display:flex;position:sticky;top:0}.brand{color:var(--text-1);align-items:center;gap:8px;font-size:1.05rem;font-weight:700;text-decoration:none;display:flex}.brand-mark{background:var(--accent);width:28px;height:28px;color:var(--on-accent);border-radius:8px;place-items:center;display:grid}.page{max-width:1080px;margin:0 auto;padding:32px 16px 64px}.page.narrow{max-width:760px}.hero{padding:24px 0 32px}.hero h1{max-width:24ch;font-size:1.9rem}.hero p{max-width:60ch}.engine-row{flex-wrap:wrap;gap:8px;margin-top:12px;display:flex}.section-head{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.empty{border:1px dashed var(--baseline);border-radius:var(--radius);text-align:center;flex-direction:column;align-items:center;gap:12px;padding:32px;display:flex}.room-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px;display:grid}.room-card{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);color:var(--text-1);box-shadow:var(--shadow);flex-direction:column;gap:4px;padding:16px;text-decoration:none;display:flex}.room-card:hover{border-color:var(--accent)}.room-card strong{font-size:1.05rem}.room-card-meta{color:var(--muted);font-size:.8rem}.step{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);margin:16px 0;padding:20px}.step h2{align-items:center;gap:10px;font-size:1.05rem;display:flex}.step-no{background:var(--accent);width:24px;height:24px;color:var(--on-accent);border-radius:50%;place-items:center;font-size:.8rem;display:grid}.subject-groups{flex-wrap:wrap;gap:4px 28px;display:flex}.subject-group{margin:10px 0}.subject-group h3{margin-bottom:6px;font-size:.85rem}.subject-group .input{margin-top:10px}.preview{background:var(--surface-2);border-radius:8px;margin-top:12px;padding:12px 16px}.unit-preview{columns:2;margin:6px 0 0;padding-left:20px;font-size:.9rem}.engine-pick{grid-template-columns:1fr 1fr;gap:10px;display:grid}.engine-card{border:1px solid var(--border);cursor:pointer;border-radius:8px;flex-direction:column;gap:2px;padding:12px 14px;display:flex}.engine-card input{opacity:0;position:absolute}.engine-card.on{border-color:var(--accent);background:var(--accent-soft)}.engine-card.disabled{opacity:.6;cursor:not-allowed}.step>.input{margin-top:4px}.actions{justify-content:flex-end;align-items:center;gap:10px;margin-top:16px;display:flex}.room{height:calc(100vh - 56px);height:calc(100dvh - 56px - var(--notice-h,0px));grid-template-columns:290px minmax(0,1fr);display:grid}@media (width>=861px){body:has(.room){overflow:hidden}.room{min-height:0;overflow:hidden}.room>.sidebar,.room>.main{min-height:0;max-height:100%}.room>.main{overflow:hidden}}.sidebar{border-right:1px solid var(--border);background:var(--surface);flex-direction:column;gap:14px;padding:20px 16px;display:flex;overflow-y:auto}.room-title h1{margin:2px 0;font-size:1.2rem}.meter{background:var(--accent-soft);border-radius:3px;height:6px;margin-bottom:4px;overflow:hidden}.meter span{background:var(--accent);border-radius:3px;height:100%;transition:width .4s;display:block}.unit-list{flex-direction:column;gap:2px;margin:0;padding:0;list-style:none;display:flex}.unit-item{cursor:pointer;text-align:left;background:0 0;border:none;border-radius:8px;grid-template-columns:22px 1fr 16px;align-items:center;gap:8px;width:100%;padding:8px;display:grid}.unit-item:hover{background:var(--surface-2)}.unit-item.on{background:var(--accent-soft);font-weight:600}.unit-no{color:var(--muted);text-align:right;font-variant-numeric:tabular-nums;font-size:.8rem}.unit-name{font-size:.92rem}.status{place-items:center;display:grid}.status-dot{background:var(--baseline);border-radius:50%;width:8px;height:8px}.status-ready .status-dot{background:var(--good)}.status-error .status-dot{background:var(--critical)}.engine-switch{flex-direction:column;gap:4px;margin-top:auto;display:flex}.main{flex-direction:column;min-width:0;min-height:0;display:flex}.tabs{border-bottom:1px solid var(--border);gap:4px;padding:10px 20px 0;display:flex;overflow-x:auto}.tabs button{cursor:pointer;color:var(--text-2);white-space:nowrap;background:0 0;border:none;border-bottom:2px solid #0000;padding:10px 14px}.tabs button.on{color:var(--text-1);border-bottom-color:var(--accent);font-weight:600}.tab-body{flex:1;min-height:0;padding:24px;overflow-y:auto}.tab-body:has(>.chat-host:not([hidden])){padding:0;overflow:hidden}.chat-host{height:100%}.note,.quiz,.progress,.concept-map{max-width:900px}.note section{margin-top:24px}.note-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.note-actions{gap:8px;display:flex}.checklist{margin:0;padding-left:20px}.concept-grid{grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:10px;display:grid}.concept-card{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);flex-direction:column;gap:4px;padding:14px;display:flex}.concept-card .md p{margin:0;font-size:.92rem}.formula-list{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:10px;display:grid}.formula{border-radius:var(--radius);background:var(--surface-2);padding:12px 14px;overflow-x:auto}.formula-name{font-size:.9rem;font-weight:600}.terms{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:6px 16px;margin:0;display:grid}.terms dt{font-weight:600}.terms dd{color:var(--text-2);margin:0 0 6px;font-size:.92rem}.terms dd .md p{margin:0}.pitfalls{flex-direction:column;gap:6px;margin:0;padding:0;list-style:none;display:flex}.pitfalls li{align-items:baseline;gap:10px;display:flex}.pitfalls .md p{margin:0}.pitfall-icon{background:var(--warning);color:#0b0b0b;border-radius:50%;flex:none;place-items:center;width:18px;height:18px;font-size:.75rem;font-weight:700;display:grid}.example{border-left:3px solid var(--accent);background:var(--surface);border-radius:0 var(--radius) var(--radius) 0;padding:16px}.solution{border-top:1px solid var(--grid);margin-top:8px;padding-top:8px}.md>:first-child{margin-top:0}.md>:last-child{margin-bottom:0}.md pre{background:var(--surface-2);border-radius:8px;padding:12px;font-size:.88rem;overflow-x:auto}.md code{font-family:ui-monospace,D2Coding,Menlo,monospace;font-size:.9em}.md :not(pre)>code{background:var(--surface-2);border-radius:4px;padding:1px 5px}.md blockquote{border-left:3px solid var(--grid);color:var(--text-2);margin:0;padding-left:12px}.katex-display{padding:4px 0;overflow:auto hidden}.table-wrap{overflow-x:auto}.data-table{border-collapse:collapse;width:100%;font-size:.9rem}.data-table th,.data-table td{border-bottom:1px solid var(--grid);text-align:left;padding:6px 10px}.data-table th{color:var(--text-2);font-weight:600}.data-table td.num,.data-table th.num{text-align:right;font-variant-numeric:tabular-nums}.viz{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);min-width:0;margin:12px 0;padding:14px 14px 10px}.viz-head{justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:6px;display:flex}.viz figcaption{font-size:.95rem;font-weight:600}.viz-head .link-btn{margin-left:auto;font-size:.8rem}.viz-canvas{width:100%;position:relative;overflow:hidden}.viz-canvas svg{display:block;overflow:visible}.viz-loading{color:var(--muted);font-size:.9rem}.viz-error p{color:var(--text-2);margin:0 0 6px;font-size:.88rem}.viz-error pre{max-height:160px;margin:0;font-size:.8rem;overflow:auto}.viz-legend{color:var(--text-2);flex-wrap:wrap;gap:4px 14px;margin-bottom:6px;font-size:.85rem;display:flex}.viz-legend-item{align-items:center;gap:6px;display:inline-flex}.viz-key{flex:none;display:inline-block}.viz-key.box{border-radius:2px;width:10px;height:10px}.viz-key.line{border-radius:1px;width:14px;height:2px}.viz .grid{stroke:var(--grid);stroke-width:1px}.viz .axis{stroke:var(--baseline);stroke-width:1px}.viz .tick{fill:var(--muted);font-variant-numeric:tabular-nums;font-size:11px}.viz .series-line{fill:none;stroke-width:2px;stroke-linejoin:round;stroke-linecap:round}.viz .dot{fill:var(--text-2);stroke:var(--surface);stroke-width:2px}.viz .point-label{fill:var(--text-2);paint-order:stroke;stroke:var(--surface);stroke-width:3px;font-size:12px}.viz .crosshair{stroke:var(--baseline);stroke-width:1px}.viz path.dim{opacity:.35}.viz-tooltip{z-index:5;border:1px solid var(--border);background:var(--surface);pointer-events:none;border-radius:8px;min-width:140px;padding:8px 10px;font-size:.82rem;position:absolute;box-shadow:0 4px 16px #0000001f}.tt-title{margin-bottom:4px;font-weight:600}.tt-row{color:var(--text-2);grid-template-columns:auto 1fr auto;align-items:center;gap:6px;display:grid}.tt-row b{color:var(--text-1);font-variant-numeric:tabular-nums}.mermaid-out{overflow-x:auto}.mermaid-out svg{max-width:100%;height:auto}.chat{grid-template-columns:230px minmax(0,1fr);height:100%;display:grid}.chat-side{border-right:1px solid var(--border);flex-direction:column;gap:10px;padding:16px 12px;display:flex;overflow-y:auto}.chat-side .btn{white-space:normal;justify-content:center}.conv-list{margin:0;padding:0;list-style:none}.conv-item{text-align:left;cursor:pointer;background:0 0;border:none;border-radius:8px;flex-direction:column;width:100%;padding:8px 10px;display:flex}.conv-item:hover{background:var(--surface-2)}.conv-item.on{background:var(--accent-soft)}.conv-title{text-overflow:ellipsis;white-space:nowrap;font-size:.9rem;overflow:hidden}.chat-main{flex-direction:column;height:100%;min-height:0;display:flex}.chat-context{border-bottom:1px solid var(--border);justify-content:space-between;padding:8px 20px;display:flex}.engine-tag{background:var(--surface-2);border-radius:999px;padding:0 8px}.messages{flex-direction:column;flex:1;gap:14px;padding:20px;display:flex;overflow-y:auto}.chat-empty{color:var(--text-2);flex-direction:column;gap:12px;max-width:640px;margin:auto 0;display:flex}.msg{max-width:820px}.msg-user{background:var(--accent);max-width:75%;color:var(--on-accent);border-radius:14px 14px 4px;align-self:flex-end;padding:10px 14px}.msg-text{white-space:pre-wrap;margin:0}.msg-assistant{background:var(--surface);border:1px solid var(--border);border-radius:14px;align-self:stretch;padding:14px 16px}.msg-assistant .md-key{--key-ink:var(--text-1);color:var(--key-ink);-webkit-box-decoration-break:clone;box-decoration-break:clone;background-image:linear-gradient(100deg,#ffe60000 0%,#ffe6009e 2.5%,#ffe20075 48%,#ffe60099 97%,#ffe60000 100%);background-position:0 90%;background-repeat:no-repeat;background-size:100% 64%;border-radius:.3em .7em .35em .8em;margin:0 -.04em;padding:0 .16em}@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .msg-assistant .md-key{--key-ink:#ffe9a3;background-color:#ffe58f21;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 14' preserveAspectRatio='none'%3E%3Cfilter id='c' x='-5%25' y='-60%25' width='110%25' height='220%25'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' seed='4' result='n'/%3E%3CfeDisplacementMap in='SourceGraphic' in2='n' scale='2.4' result='d'/%3E%3CfeTurbulence type='fractalNoise' baseFrequency='2.4' seed='9' result='g'/%3E%3CfeColorMatrix in='g' type='matrix' values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -2 1.7' result='m'/%3E%3CfeComposite in='d' in2='m' operator='in'/%3E%3C/filter%3E%3Cg fill='none' stroke='%23ffe58f' stroke-linecap='round' filter='url(%23c)'%3E%3Cpath d='M3 8 C 32 5.5, 70 9.5, 117 6' stroke-width='4.2' opacity='1'/%3E%3Cpath d='M8 10.6 C 44 9, 82 11.4, 112 9.4' stroke-width='1.8' opacity='.6'/%3E%3C/g%3E%3C/svg%3E");background-position:0 100%;background-size:100% .62em;border-radius:0;padding:0 .06em .12em}}:root[data-theme=dark] .msg-assistant .md-key{--key-ink:#ffe9a3;background-color:#ffe58f21;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 14' preserveAspectRatio='none'%3E%3Cfilter id='c' x='-5%25' y='-60%25' width='110%25' height='220%25'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' seed='4' result='n'/%3E%3CfeDisplacementMap in='SourceGraphic' in2='n' scale='2.4' result='d'/%3E%3CfeTurbulence type='fractalNoise' baseFrequency='2.4' seed='9' result='g'/%3E%3CfeColorMatrix in='g' type='matrix' values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -2 1.7' result='m'/%3E%3CfeComposite in='d' in2='m' operator='in'/%3E%3C/filter%3E%3Cg fill='none' stroke='%23ffe58f' stroke-linecap='round' filter='url(%23c)'%3E%3Cpath d='M3 8 C 32 5.5, 70 9.5, 117 6' stroke-width='4.2' opacity='1'/%3E%3Cpath d='M8 10.6 C 44 9, 82 11.4, 112 9.4' stroke-width='1.8' opacity='.6'/%3E%3C/g%3E%3C/svg%3E");background-position:0 100%;background-size:100% .62em;border-radius:0;padding:0 .06em .12em}@media (forced-colors:active){.msg-assistant .md-key{background:0 0;text-decoration:underline}}.composer{border-top:1px solid var(--border);background:var(--surface);align-items:flex-end;gap:8px;padding:12px 20px 16px;display:flex}.toolbar{flex-wrap:wrap;align-items:center;gap:8px 12px;margin-bottom:8px;display:flex}.toolbar .seg{margin:0}.concept-map .chips{margin-top:12px}.quiz-score{border-radius:var(--radius);background:var(--accent-soft);align-items:baseline;gap:12px;margin:12px 0;padding:14px 18px;display:flex}.quiz-score strong{font-size:1.6rem}.questions{counter-reset:q;flex-direction:column;gap:14px;padding-left:0;list-style:none;display:flex}.question{counter-increment:q;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);padding:16px}.q-head{justify-content:space-between;gap:12px;margin-bottom:10px;display:flex}.q-head:before{content:counter(q) ".";color:var(--muted);font-weight:700}.q-head .md{flex:1}.badge{border-radius:999px;flex:none;align-self:flex-start;gap:4px;padding:2px 8px;font-size:.8rem;font-weight:600;display:inline-flex}.badge-good{color:var(--good-text);background:color-mix(in srgb, var(--good) 14%, transparent)}.badge-bad{color:var(--critical);background:color-mix(in srgb, var(--critical) 12%, transparent)}.choices{gap:6px;display:grid}.choice{border:1px solid var(--border);background:var(--surface);text-align:left;cursor:pointer;border-radius:8px;align-items:baseline;gap:10px;padding:9px 12px;display:flex}.choice:hover:not(:disabled){background:var(--surface-2)}.choice:disabled{cursor:default}.choice .md p{margin:0}.choice.picked{border-color:var(--accent);background:var(--accent-soft)}.choice.answer{border-color:var(--good);background:color-mix(in srgb, var(--good) 10%, transparent)}.choice.picked-wrong{border-color:var(--critical);background:color-mix(in srgb, var(--critical) 8%, transparent)}.choice-no{color:var(--muted)}.explanation{background:var(--surface-2);border-radius:8px;margin-top:10px;padding:10px 12px;font-size:.92rem}.stats{grid-template-columns:repeat(4,1fr);gap:10px;display:grid}.stat{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);flex-direction:column;padding:14px 16px;display:flex}.stat-label{color:var(--text-2);font-size:.85rem}.stat-value{font-size:1.6rem;font-weight:600}.hbars{flex-direction:column;gap:2px;display:flex}.hbar-row{cursor:pointer;text-align:left;background:0 0;border:none;border-radius:6px;grid-template-columns:minmax(120px,34%) 1fr;align-items:center;gap:12px;padding:5px 4px;display:grid}.hbar-row:hover{background:var(--surface-2)}.hbar-label{text-overflow:ellipsis;white-space:nowrap;font-size:.88rem;overflow:hidden}.hbar-track{border-left:1px solid var(--baseline);align-items:center;gap:8px;height:16px;display:flex}.hbar-fill{background:var(--series-1);border-radius:0 4px 4px 0;max-width:calc(100% - 44px);height:14px;display:block}.hbar-value{color:var(--text-1);font-variant-numeric:tabular-nums;font-size:.82rem}.hbar-track .muted{color:var(--muted);padding-left:8px}.two-col{grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:12px;display:grid}.weak{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);margin:12px 0;padding:14px}.weak h3{color:var(--text-1);font-size:.95rem}.boot{min-height:100dvh;color:var(--text-2);place-items:center;display:grid}.topnav{gap:4px;margin-right:auto;display:flex}.topnav a{color:var(--text-2);border-radius:8px;padding:6px 12px;font-size:.92rem;text-decoration:none}.topnav a:hover{background:var(--surface-2)}.topnav a.on{color:var(--text-1);background:var(--accent-soft);font-weight:600}.topbar-right{align-items:center;gap:14px;display:flex}.notice-bar{background:var(--accent-soft);color:var(--text-1);text-align:center;padding:8px 16px;font-size:.88rem}.tabbar{display:none}.family-banner{border-radius:var(--radius);background:var(--accent-soft);color:var(--text-1);margin:0 0 20px;padding:12px 16px;text-decoration:none;display:block}.rooms-quota{margin-top:10px}.home-cards{align-items:center;gap:10px;display:flex}.auth{max-width:1040px;min-height:100dvh;padding:max(32px, env(safe-area-inset-top)) 20px 48px;grid-template-columns:minmax(0,1.1fr) minmax(0,420px);align-items:center;gap:48px;margin:0 auto;display:grid}.auth.auth-single{grid-template-columns:minmax(0,420px);justify-content:center}.auth-card h1{margin:0;font-size:1.3rem}.auth-intro h1{max-width:18ch;margin:28px 0 20px;font-size:2rem}.auth-features{gap:14px;margin:0;padding:0;list-style:none;display:grid}.auth-features li{border-left:3px solid var(--accent);flex-direction:column;padding-left:14px;display:flex}.auth-card{border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow);border-radius:14px;flex-direction:column;gap:14px;padding:24px;display:flex}.auth-card .seg{align-self:flex-start;margin:0}.auth-card .seg a{color:var(--text-2);border-radius:7px;padding:7px 18px;text-decoration:none}.auth-card .seg a.on{background:var(--surface);color:var(--text-1);font-weight:600;box-shadow:0 1px 2px #00000014}.auth-form{flex-direction:column;gap:12px;display:flex}.auth-account{border:none;grid-template-columns:1fr 1fr;gap:8px;margin:0;padding:0;display:grid}.auth-account legend{margin-bottom:6px}.field{flex-direction:column;gap:4px;font-size:.9rem;display:flex}.auth-submit{justify-content:center;padding:11px}.notice-inline{background:var(--accent-soft);border-radius:8px;margin:0;padding:8px 12px}.sp{flex-direction:column;gap:10px;display:flex}.sp-teachers{grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:8px;display:grid}.sp-teacher{border:1px solid var(--border);background:var(--surface);cursor:pointer;text-align:left;border-radius:10px;flex-direction:column;align-items:flex-start;gap:2px;padding:10px 12px;display:flex}.sp-teacher:hover{background:var(--surface-2)}.sp-teacher.on{border-color:var(--accent);background:var(--accent-soft)}.sp .seg{align-self:flex-start;margin:0}.sp-row{gap:8px;display:flex}.sp-hits{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:8px;max-height:420px;margin:0;padding:0;list-style:none;display:grid;overflow-y:auto}.sp-hit{border:1px solid var(--border);background:var(--surface);cursor:pointer;text-align:left;border-radius:10px;grid-template-columns:96px minmax(0,1fr);align-items:center;gap:10px;width:100%;padding:6px;display:grid}.sp-hit:hover{border-color:var(--accent)}.sp-hit img,.sp-thumb{aspect-ratio:16/9;object-fit:cover;background:var(--surface-2);border-radius:6px;width:96px}.sp-hit>span{flex-direction:column;min-width:0;display:flex}.sp-hit strong{-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:.9rem;font-weight:600;display:-webkit-box;overflow:hidden}.sp-videoonly{background:var(--surface-2);color:var(--text-2);border-radius:8px;margin:6px 0 0;padding:6px 10px}.sp-picked{border:1px solid var(--accent);background:var(--accent-soft);border-radius:10px;flex-direction:column;gap:8px;padding:12px 14px;display:flex}.sp-preview{margin:0;padding-left:20px;font-size:.88rem}@media (width<=860px){.topnav,.hide-sm{display:none}.app{padding-bottom:calc(60px + env(safe-area-inset-bottom))}.app.immersive{padding-bottom:env(safe-area-inset-bottom)}.app.immersive .tabbar{display:none}.tabbar{z-index:20;padding:6px 4px calc(6px + env(safe-area-inset-bottom));border-top:1px solid var(--border);background:color-mix(in srgb, var(--surface) 96%, transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);justify-content:space-around;display:flex;position:fixed;bottom:0;left:0;right:0}.tabbar a{min-width:64px;color:var(--muted);flex-direction:column;align-items:center;gap:2px;padding:2px 6px;font-size:.72rem;text-decoration:none;display:flex}.tabbar a span{font-size:1.15rem;line-height:1.2}.tabbar a.on{color:var(--accent);font-weight:600}.auth{grid-template-columns:minmax(0,1fr);align-items:start;gap:24px}.auth-intro h1{margin:18px 0 12px;font-size:1.5rem}.auth-features{display:none}.sp-row{flex-direction:column}.room{grid-template-columns:minmax(0,1fr);height:auto}.sidebar{border-right:none;border-bottom:1px solid var(--border)}.unit-list{max-height:34vh;overflow-y:auto}.tab-body{padding:16px;overflow:visible}.tab-body:has(>.chat-host:not([hidden])){overflow:visible}.chat{grid-template-rows:auto minmax(0,1fr);grid-template-columns:minmax(0,1fr);height:78vh}.chat-side{border-right:none;border-bottom:1px solid var(--border);flex-direction:row;align-items:center;padding:8px 12px;overflow-x:auto}.chat-side .btn{white-space:nowrap}.conv-list{gap:4px;display:flex}.conv-item{width:170px}.stats{grid-template-columns:repeat(2,1fr)}.two-col,.engine-pick{grid-template-columns:minmax(0,1fr)}.unit-preview{columns:1}.msg-user{max-width:90%}.input,select,textarea{font-size:16px}h1{font-size:1.35rem}h2{font-size:1.12rem}.page{padding:20px 16px 32px}.hero{padding:4px 0 18px}.hero h1{font-size:1.45rem}.step{padding:16px 14px}.seg{flex-wrap:wrap;max-width:100%;margin-right:0;display:flex}.seg button,.seg a{white-space:nowrap;text-align:center;flex:1 0 auto;padding:8px 10px}.section-head{flex-wrap:wrap;gap:8px}.actions{flex-wrap:wrap}.note-head h2{font-size:1.1rem}}@media (pointer:coarse){.btn{min-height:42px}.btn-sm{min-height:36px}.chip{min-height:36px;padding:7px 14px}.link-btn{padding:6px 0}.unit-item{padding:11px 8px}.tabs button{padding:12px 14px}.hbar-row{min-height:38px}.lec-time{min-height:32px;padding-inline:8px}.toc-mini{width:34px;height:34px}.plan-slot .toc-mini{width:30px;height:30px}.plan-slot{padding-right:36px}}.room-mobile{display:none}@media (width<=860px){.room .sidebar{display:none}.room-mobile{background:var(--surface);border-bottom:1px solid var(--border);flex-direction:column;gap:8px;padding:12px 16px 10px;display:flex}.rm-head{justify-content:space-between;align-items:flex-start;gap:10px;display:flex}.rm-title{flex-direction:column;min-width:0;display:flex}.rm-title strong{text-overflow:ellipsis;white-space:nowrap;font-size:1.1rem;overflow:hidden}.rm-more{flex:none;position:relative}.rm-more summary{cursor:pointer;list-style:none}.rm-more summary::-webkit-details-marker{display:none}.rm-menu{z-index:15;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);flex-direction:column;gap:12px;width:min(300px,100vw - 32px);padding:14px;display:flex;position:absolute;top:calc(100% + 6px);right:0;box-shadow:0 8px 28px #00000029}.rm-unit select{font-weight:600}.room .tabs{top:calc(56px + env(safe-area-inset-top));z-index:9;background:var(--page);scrollbar-width:none;padding:0 8px;position:sticky}.room .tabs::-webkit-scrollbar{display:none}}.auth-org{color:var(--good-text);font-weight:600}.concept-map{width:100%;max-width:none}.concept-map .viz{margin:14px 0;padding:24px clamp(18px,3vw,44px)}.concept-map .mermaid-out{padding:4px clamp(0px,2vw,28px);overflow-x:auto}.concept-map .mermaid-out svg{width:100%;min-width:780px;max-width:none;height:auto;margin:0 auto;display:block}@media (width<=820px){.concept-map .viz{padding:14px}.concept-map .mermaid-out{padding:0}.concept-map .mermaid-out svg{width:780px;max-width:none}}.concept-map .mermaid-out svg{width:auto;min-width:100%;max-width:none}@media (width<=820px){.concept-map .mermaid-out svg{width:auto;min-width:780px}}.concept-map .viz{padding:18px clamp(14px,2vw,28px)}.concept-map .mermaid-out{justify-content:center;padding:0;display:flex}.concept-map .mermaid-out svg{width:880px;min-width:0;max-width:100%;height:auto;margin:0}@media (width<=820px){.concept-map .mermaid-out{display:block;overflow-x:auto}.concept-map .mermaid-out svg{width:760px;max-width:none}}.room-card-unit{border-top:1px solid var(--border);color:var(--text-2);text-overflow:ellipsis;white-space:nowrap;margin-top:5px;padding-top:8px;font-size:.84rem;line-height:1.45;overflow:hidden}.toc-meta{border:1px solid var(--line);border-radius:12px;margin:14px 0;padding:12px 14px}.toc-meta summary{cursor:pointer;font-weight:650}.toc-meta .form-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:12px;display:grid}.toc-meta label{gap:5px;font-size:.86rem;display:grid}@media (width<=600px){.toc-meta .form-grid{grid-template-columns:1fr}}