@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2) format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff) format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff) format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff) format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2) format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff) format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2) format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff) format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2) format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff) format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2) format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff) format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2) format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff) format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2) format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff) format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff) format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff) format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff) format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2) format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff) format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2) format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff) format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2) format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff) format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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) format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff) format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2) format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff) format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2) format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff) format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,math,Times New Roman,serif;line-height:1.2;position:relative;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.19.0"}.katex .katex-mathml{border:0;-webkit-clip-path:inset(50%);clip-path:inset(50%);height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.katex-newline{display:block}.katex .katex-base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.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;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .katex-vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .katex-thinbox{display:inline-flex;flex-direction:row;max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .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{display:inline;line-height:0}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.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;display:inline-block;width:100%}.katex .katex-hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.katex-root{margin-left:.2777777778em;margin-right:-.5555555556em}.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:.8333333333em}.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:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .katex-sizing.reset-size2.size4{font-size:1.3333333333em}.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:1.6666666667em}.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:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .katex-sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .katex-sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .katex-sizing.reset-size3.size2{font-size:.8571428571em}.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:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .katex-sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .katex-sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .katex-sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .katex-sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .katex-sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .katex-sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .katex-sizing.reset-size3.size11{font-size:3.5542857143em}.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:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .katex-sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .katex-sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .katex-sizing.reset-size5.size4{font-size:.8888888889em}.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:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .katex-sizing.reset-size5.size7{font-size:1.3333333333em}.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:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .katex-sizing.reset-size5.size11{font-size:2.7644444444em}.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:.4166666667em}.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:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .katex-sizing.reset-size7.size4{font-size:.6666666667em}.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:.8333333333em}.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:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .katex-sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .katex-sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .katex-sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .katex-sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .katex-sizing.reset-size8.size4{font-size:.5555555556em}.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:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .katex-sizing.reset-size8.size7{font-size:.8333333333em}.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:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .katex-sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .katex-sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .katex-sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .katex-sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .katex-sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .katex-sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .katex-sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .katex-sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .katex-sizing.reset-size9.size8{font-size:.8333333333em}.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:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .katex-sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .katex-sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .katex-sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .katex-sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .katex-sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .katex-sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .katex-sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .katex-sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .katex-sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .katex-sizing.reset-size10.size9{font-size:.8331726133em}.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:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .katex-sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .katex-sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .katex-sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .katex-sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .katex-sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .katex-sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .katex-sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .katex-sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .katex-sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .katex-sizing.reset-size11.size10{font-size:.8336012862em}.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{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .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{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .katex-stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .katex-stretchy:after,.katex .katex-stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .katex-sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .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{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.katex-tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.katex-tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}/*! tailwindcss v4.3.3 | MIT License | https://tailwindcss.com */@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-space-y-reverse:0;--tw-border-style:solid;--tw-leading:initial;--tw-font-weight:initial;--tw-tracking:initial;--tw-ordinal:initial;--tw-slashed-zero:initial;--tw-numeric-figure:initial;--tw-numeric-spacing:initial;--tw-numeric-fraction:initial;--tw-shadow:0 0 #0000;--tw-shadow-color:initial;--tw-shadow-alpha:100%;--tw-inset-shadow:0 0 #0000;--tw-inset-shadow-color:initial;--tw-inset-shadow-alpha:100%;--tw-ring-color:initial;--tw-ring-shadow:0 0 #0000;--tw-inset-ring-color:initial;--tw-inset-ring-shadow:0 0 #0000;--tw-ring-inset:initial;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-offset-shadow:0 0 #0000;--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial;--tw-duration:initial;--tw-ease:initial}}}@layer theme{:root,:host{--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--color-white:#fff;--spacing:.25rem;--container-sm:24rem;--container-md:28rem;--container-lg:32rem;--container-xl:36rem;--container-2xl:42rem;--text-xs:.75rem;--text-xs--line-height:calc(1 / .75);--text-sm:.875rem;--text-sm--line-height:calc(1.25 / .875);--text-base:1rem;--text-base--line-height: 1.5 ;--text-lg:1.125rem;--text-lg--line-height:calc(1.75 / 1.125);--text-xl:1.25rem;--text-xl--line-height:calc(1.75 / 1.25);--text-2xl:1.5rem;--text-2xl--line-height:calc(2 / 1.5);--text-3xl:1.875rem;--text-3xl--line-height: 1.2 ;--text-4xl:2.25rem;--text-4xl--line-height:calc(2.5 / 2.25);--font-weight-medium:500;--font-weight-semibold:600;--font-weight-bold:700;--tracking-tight:-.025em;--tracking-wide:.025em;--leading-snug:1.375;--leading-relaxed:1.625;--radius-sm:.25rem;--radius-md:.375rem;--radius-lg:.5rem;--radius-xl:.75rem;--radius-2xl:1rem;--ease-out:cubic-bezier(0, 0, .2, 1);--ease-in-out:cubic-bezier(.4, 0, .2, 1);--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4, 0, .2, 1);--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;-moz-tab-size:4;tab-size:4;line-height:1.5;font-family:var(--default-font-family,-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring:where(:not(iframe)){outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab,red,red)){::placeholder{color:color-mix(in oklab,currentcolor 50%,transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){-webkit-appearance:button;-moz-appearance:button;appearance:button}::file-selector-button{-webkit-appearance:button;-moz-appearance:button;appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.collapse{visibility:collapse}.visible{visibility:visible}.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.absolute{position:absolute}.fixed{position:fixed}.relative{position:relative}.static{position:static}.right-0{right:0}.z-40{z-index:40}.z-50{z-index:50}.container{width:100%}@media(min-width:40rem){.container{max-width:40rem}}@media(min-width:48rem){.container{max-width:48rem}}@media(min-width:64rem){.container{max-width:64rem}}@media(min-width:80rem){.container{max-width:80rem}}@media(min-width:96rem){.container{max-width:96rem}}.m-3{margin:calc(var(--spacing) * 3)}.mx-5{margin-inline:calc(var(--spacing) * 5)}.mx-auto{margin-inline:auto}.mt-0\.5{margin-top:calc(var(--spacing) * .5)}.mt-1{margin-top:var(--spacing)}.mt-1\.5{margin-top:calc(var(--spacing) * 1.5)}.mt-2{margin-top:calc(var(--spacing) * 2)}.mt-2\.5{margin-top:calc(var(--spacing) * 2.5)}.mt-3{margin-top:calc(var(--spacing) * 3)}.mt-4{margin-top:calc(var(--spacing) * 4)}.mt-5{margin-top:calc(var(--spacing) * 5)}.mt-6{margin-top:calc(var(--spacing) * 6)}.mt-8{margin-top:calc(var(--spacing) * 8)}.mb-0{margin-bottom:0}.mb-0\.5{margin-bottom:calc(var(--spacing) * .5)}.mb-1{margin-bottom:var(--spacing)}.mb-1\.5{margin-bottom:calc(var(--spacing) * 1.5)}.mb-2{margin-bottom:calc(var(--spacing) * 2)}.mb-3{margin-bottom:calc(var(--spacing) * 3)}.mb-4{margin-bottom:calc(var(--spacing) * 4)}.mb-5{margin-bottom:calc(var(--spacing) * 5)}.mb-6{margin-bottom:calc(var(--spacing) * 6)}.mb-8{margin-bottom:calc(var(--spacing) * 8)}.ml-1{margin-left:var(--spacing)}.ml-1\.5{margin-left:calc(var(--spacing) * 1.5)}.line-clamp-1{-webkit-line-clamp:1;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.line-clamp-2{-webkit-line-clamp:2;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.block{display:block}.contents{display:contents}.flex{display:flex}.grid{display:grid}.hidden{display:none}.inline{display:inline}.inline-block{display:inline-block}.inline-flex{display:inline-flex}.table{display:table}.max-h-36{max-height:calc(var(--spacing) * 36)}.max-h-52{max-height:calc(var(--spacing) * 52)}.max-h-72{max-height:calc(var(--spacing) * 72)}.w-20{width:calc(var(--spacing) * 20)}.w-44{width:calc(var(--spacing) * 44)}.w-80{width:calc(var(--spacing) * 80)}.w-full{width:100%}.max-w-2xl{max-width:var(--container-2xl)}.max-w-\[200px\]{max-width:200px}.max-w-\[calc\(100vw-2rem\)\]{max-width:calc(100vw - 2rem)}.max-w-lg{max-width:var(--container-lg)}.max-w-md{max-width:var(--container-md)}.max-w-none{max-width:none}.max-w-sm{max-width:var(--container-sm)}.max-w-xl{max-width:var(--container-xl)}.min-w-0{min-width:0}.min-w-\[1\.1rem\]{min-width:1.1rem}.flex-1{flex:1}.shrink-0{flex-shrink:0}.border-collapse{border-collapse:collapse}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.cursor-pointer{cursor:pointer}.list-decimal{list-style-type:decimal}.list-disc{list-style-type:disc}.flex-col{flex-direction:column}.flex-wrap{flex-wrap:wrap}.items-baseline{align-items:baseline}.items-center{align-items:center}.items-start{align-items:flex-start}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.gap-0\.5{gap:calc(var(--spacing) * .5)}.gap-1{gap:var(--spacing)}.gap-1\.5{gap:calc(var(--spacing) * 1.5)}.gap-2{gap:calc(var(--spacing) * 2)}.gap-3{gap:calc(var(--spacing) * 3)}.gap-6{gap:calc(var(--spacing) * 6)}:where(.space-y-0\.5>:not(:last-child)){--tw-space-y-reverse:0;margin-block-start:calc(calc(var(--spacing) * .5) * var(--tw-space-y-reverse));margin-block-end:calc(calc(var(--spacing) * .5) * calc(1 - var(--tw-space-y-reverse)))}:where(.space-y-1>:not(:last-child)){--tw-space-y-reverse:0;margin-block-start:calc(var(--spacing) * var(--tw-space-y-reverse));margin-block-end:calc(var(--spacing) * calc(1 - var(--tw-space-y-reverse)))}:where(.space-y-1\.5>:not(:last-child)){--tw-space-y-reverse:0;margin-block-start:calc(calc(var(--spacing) * 1.5) * var(--tw-space-y-reverse));margin-block-end:calc(calc(var(--spacing) * 1.5) * calc(1 - var(--tw-space-y-reverse)))}:where(.space-y-2>:not(:last-child)){--tw-space-y-reverse:0;margin-block-start:calc(calc(var(--spacing) * 2) * var(--tw-space-y-reverse));margin-block-end:calc(calc(var(--spacing) * 2) * calc(1 - var(--tw-space-y-reverse)))}:where(.space-y-2\.5>:not(:last-child)){--tw-space-y-reverse:0;margin-block-start:calc(calc(var(--spacing) * 2.5) * var(--tw-space-y-reverse));margin-block-end:calc(calc(var(--spacing) * 2.5) * calc(1 - var(--tw-space-y-reverse)))}:where(.space-y-3>:not(:last-child)){--tw-space-y-reverse:0;margin-block-start:calc(calc(var(--spacing) * 3) * var(--tw-space-y-reverse));margin-block-end:calc(calc(var(--spacing) * 3) * calc(1 - var(--tw-space-y-reverse)))}:where(.space-y-4>:not(:last-child)){--tw-space-y-reverse:0;margin-block-start:calc(calc(var(--spacing) * 4) * var(--tw-space-y-reverse));margin-block-end:calc(calc(var(--spacing) * 4) * calc(1 - var(--tw-space-y-reverse)))}:where(.space-y-5>:not(:last-child)){--tw-space-y-reverse:0;margin-block-start:calc(calc(var(--spacing) * 5) * var(--tw-space-y-reverse));margin-block-end:calc(calc(var(--spacing) * 5) * calc(1 - var(--tw-space-y-reverse)))}:where(.space-y-6>:not(:last-child)){--tw-space-y-reverse:0;margin-block-start:calc(calc(var(--spacing) * 6) * var(--tw-space-y-reverse));margin-block-end:calc(calc(var(--spacing) * 6) * calc(1 - var(--tw-space-y-reverse)))}.gap-x-2{column-gap:calc(var(--spacing) * 2)}.gap-x-3{column-gap:calc(var(--spacing) * 3)}.gap-y-0\.5{row-gap:calc(var(--spacing) * .5)}.gap-y-1{row-gap:var(--spacing)}.self-start{align-self:flex-start}.truncate{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.overflow-y-auto{overflow-y:auto}.rounded-2xl{border-radius:var(--radius-2xl)}.rounded-full{border-radius:3.40282e38px}.rounded-lg{border-radius:var(--radius-lg)}.rounded-md{border-radius:var(--radius-md)}.rounded-xl{border-radius:var(--radius-xl)}.\!border-0{border-style:var(--tw-border-style)!important;border-width:0!important}.border{border-style:var(--tw-border-style);border-width:1px}.border-t{border-top-style:var(--tw-border-style);border-top-width:1px}.\!bg-transparent{background-color:#0000!important}.\!bg-white{background-color:var(--color-white)!important}.bg-transparent{background-color:#0000}.bg-white{background-color:var(--color-white)}.\!p-0{padding:0!important}.p-1\.5{padding:calc(var(--spacing) * 1.5)}.p-2{padding:calc(var(--spacing) * 2)}.p-3{padding:calc(var(--spacing) * 3)}.p-3\.5{padding:calc(var(--spacing) * 3.5)}.p-4{padding:calc(var(--spacing) * 4)}.p-5{padding:calc(var(--spacing) * 5)}.p-6{padding:calc(var(--spacing) * 6)}.p-8{padding:calc(var(--spacing) * 8)}.\!px-2{padding-inline:calc(var(--spacing) * 2)!important}.\!px-2\.5{padding-inline:calc(var(--spacing) * 2.5)!important}.\!px-3{padding-inline:calc(var(--spacing) * 3)!important}.px-1{padding-inline:var(--spacing)}.px-2{padding-inline:calc(var(--spacing) * 2)}.px-2\.5{padding-inline:calc(var(--spacing) * 2.5)}.px-3{padding-inline:calc(var(--spacing) * 3)}.px-3\.5{padding-inline:calc(var(--spacing) * 3.5)}.px-4{padding-inline:calc(var(--spacing) * 4)}.\!py-1{padding-block:var(--spacing)!important}.\!py-1\.5{padding-block:calc(var(--spacing) * 1.5)!important}.\!py-2{padding-block:calc(var(--spacing) * 2)!important}.py-1{padding-block:var(--spacing)}.py-1\.5{padding-block:calc(var(--spacing) * 1.5)}.py-2{padding-block:calc(var(--spacing) * 2)}.py-2\.5{padding-block:calc(var(--spacing) * 2.5)}.py-3{padding-block:calc(var(--spacing) * 3)}.py-4{padding-block:calc(var(--spacing) * 4)}.py-6{padding-block:calc(var(--spacing) * 6)}.py-8{padding-block:calc(var(--spacing) * 8)}.py-16{padding-block:calc(var(--spacing) * 16)}.py-20{padding-block:calc(var(--spacing) * 20)}.pt-1{padding-top:var(--spacing)}.pt-2{padding-top:calc(var(--spacing) * 2)}.pt-3{padding-top:calc(var(--spacing) * 3)}.pt-4{padding-top:calc(var(--spacing) * 4)}.pl-4{padding-left:calc(var(--spacing) * 4)}.pl-5{padding-left:calc(var(--spacing) * 5)}.text-center{text-align:center}.text-left{text-align:left}.\!text-xs{font-size:var(--text-xs)!important;line-height:var(--tw-leading,var(--text-xs--line-height))!important}.text-2xl{font-size:var(--text-2xl);line-height:var(--tw-leading,var(--text-2xl--line-height))}.text-3xl{font-size:var(--text-3xl);line-height:var(--tw-leading,var(--text-3xl--line-height))}.text-4xl{font-size:var(--text-4xl);line-height:var(--tw-leading,var(--text-4xl--line-height))}.text-base{font-size:var(--text-base);line-height:var(--tw-leading,var(--text-base--line-height))}.text-lg{font-size:var(--text-lg);line-height:var(--tw-leading,var(--text-lg--line-height))}.text-sm{font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height))}.text-xl{font-size:var(--text-xl);line-height:var(--tw-leading,var(--text-xl--line-height))}.text-xs{font-size:var(--text-xs);line-height:var(--tw-leading,var(--text-xs--line-height))}.text-\[1\.02rem\]{font-size:1.02rem}.text-\[1\.05rem\]{font-size:1.05rem}.text-\[10px\]{font-size:10px}.text-\[11px\]{font-size:11px}.leading-relaxed{--tw-leading:var(--leading-relaxed);line-height:var(--leading-relaxed)}.leading-snug{--tw-leading:var(--leading-snug);line-height:var(--leading-snug)}.font-bold{--tw-font-weight:var(--font-weight-bold);font-weight:var(--font-weight-bold)}.font-medium{--tw-font-weight:var(--font-weight-medium);font-weight:var(--font-weight-medium)}.font-semibold{--tw-font-weight:var(--font-weight-semibold);font-weight:var(--font-weight-semibold)}.tracking-\[0\.18em\]{--tw-tracking:.18em;letter-spacing:.18em}.tracking-tight{--tw-tracking:var(--tracking-tight);letter-spacing:var(--tracking-tight)}.tracking-wide{--tw-tracking:var(--tracking-wide);letter-spacing:var(--tracking-wide)}.break-words{overflow-wrap:break-word}.break-all{word-break:break-all}.whitespace-pre-wrap{white-space:pre-wrap}.text-\[var\(--accent-deep\)\]{color:var(--accent-deep)}.text-\[var\(--ink\)\]{color:var(--ink)}.text-\[var\(--ink-soft\)\]{color:var(--ink-soft)}.text-white{color:var(--color-white)}.uppercase{text-transform:uppercase}.tabular-nums{--tw-numeric-spacing:tabular-nums;font-variant-numeric:var(--tw-ordinal,) var(--tw-slashed-zero,) var(--tw-numeric-figure,) var(--tw-numeric-spacing,) var(--tw-numeric-fraction,)}.no-underline{text-decoration-line:none}.underline{text-decoration-line:underline}.\!opacity-0{opacity:0!important}.opacity-70{opacity:.7}.opacity-80{opacity:.8}.opacity-90{opacity:.9}.opacity-95{opacity:.95}.shadow-lg{--tw-shadow:0 10px 15px -3px var(--tw-shadow-color,#0000001a), 0 4px 6px -4px var(--tw-shadow-color,#0000001a);box-shadow:var(--tw-inset-shadow),var(--tw-inset-ring-shadow),var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow)}.shadow-sm{--tw-shadow:0 1px 3px 0 var(--tw-shadow-color,#0000001a), 0 1px 2px -1px var(--tw-shadow-color,#0000001a);box-shadow:var(--tw-inset-shadow),var(--tw-inset-ring-shadow),var(--tw-ring-offset-shadow),var(--tw-ring-shadow),var(--tw-shadow)}.blur{--tw-blur:blur(8px);filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.transition{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}.transition-all{transition-property:all;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}.duration-300{--tw-duration:.3s;transition-duration:.3s}.ease-in-out{--tw-ease:var(--ease-in-out);transition-timing-function:var(--ease-in-out)}.select-none{-webkit-user-select:none;user-select:none}.select-text{-webkit-user-select:text;user-select:text}@media(hover:hover){.hover\:bg-\[var\(--highlight\)\]:hover{background-color:var(--highlight)}.hover\:opacity-80:hover{opacity:.8}.hover\:opacity-100:hover{opacity:1}}@media(min-width:40rem){.sm\:mx-6{margin-inline:calc(var(--spacing) * 6)}.sm\:inline{display:inline}.sm\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.sm\:grid-cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.sm\:flex-row{flex-direction:row}.sm\:items-center{align-items:center}.sm\:justify-between{justify-content:space-between}.sm\:self-center{align-self:center}.sm\:p-4{padding:calc(var(--spacing) * 4)}.sm\:p-5{padding:calc(var(--spacing) * 5)}.sm\:p-6{padding:calc(var(--spacing) * 6)}.sm\:p-7{padding:calc(var(--spacing) * 7)}.sm\:p-8{padding:calc(var(--spacing) * 8)}.sm\:text-2xl{font-size:var(--text-2xl);line-height:var(--tw-leading,var(--text-2xl--line-height))}.sm\:text-3xl{font-size:var(--text-3xl);line-height:var(--tw-leading,var(--text-3xl--line-height))}.sm\:text-4xl{font-size:var(--text-4xl);line-height:var(--tw-leading,var(--text-4xl--line-height))}}@media(min-width:48rem){.md\:flex{display:flex}.md\:hidden{display:none}}@media(min-width:64rem){.lg\:col-span-2{grid-column:span 2/span 2}.lg\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}}}:root{color-scheme:light;--ink:#162532;--ink-muted:#5a6d7c;--ink-soft:#8494a1;--muted:var(--ink-muted);--paper:#f3f1ec;--paper-wash:#ebe8e1;--surface:#fffcf8;--surface-solid:#fff;--line:#1625321a;--line-strong:#16253229;--accent:#0f766e;--accent-soft:#e4f3f1;--accent-mid:#14837a;--accent-deep:#0b5a54;--highlight:#e8f0f7;--gold:#a67c52;--gold-soft:#f5ebe0;--danger:#a33d3d;--danger-soft:#f8ecec;--shadow:0 1px 0 #1625320a, 0 12px 32px #1625320f;--shadow-lift:0 2px 0 #16253208, 0 18px 44px #16253217;--font-display:"Literata", "Times New Roman", serif;--font-body:"Nunito Sans", "Segoe UI", sans-serif;--radius:.9rem;--radius-sm:.55rem;--ease-out:cubic-bezier(.22, 1, .36, 1)}*{box-sizing:border-box}html,body,#root{min-height:100%}body{font-family:var(--font-body);color:var(--ink);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;background-color:#0000;background-image:radial-gradient(920px 480px at 88% -8%,#0f766e1c,#0000 58%),radial-gradient(760px 420px at -4% 102%,#a67c5214,#0000 52%),radial-gradient(540px 280px at 48% 18%,#ffffff8c,#0000 70%),linear-gradient(165deg,#f7f5f0,#f1efea 42%,#eef1ef);background-position:0 0,0 0,0 0,0 0;background-repeat:repeat,repeat,repeat,repeat;background-size:auto,auto,auto,auto;background-attachment:fixed;background-origin:padding-box,padding-box,padding-box,padding-box;background-clip:border-box,border-box,border-box,border-box;margin:0;font-size:16.5px;line-height:1.65}body:before{content:"";pointer-events:none;z-index:0;opacity:.035;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");background-size:180px 180px;position:fixed;top:0;right:0;bottom:0;left:0}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.font-display{font-family:var(--font-display);font-optical-sizing:auto}.page-shell{z-index:1;width:min(920px,100% - 1.5rem);margin:0 auto;padding:1.25rem 0 3.25rem;position:relative}@media(min-width:768px){.page-shell{padding-right:.25rem}body:has(.edge-rail) .page-shell,body:has(.studio-rail) .page-shell{width:min(920px,100% - 4.5rem)}body:has(.edge-rail):has(.studio-rail) .page-shell{width:min(920px,100% - 8.25rem)}body:has(.edge-rail) .page-shell.max-w-none,body:has(.studio-rail) .page-shell.max-w-none{width:min(1680px,100% - 4.75rem)!important}body:has(.edge-rail):has(.studio-rail) .page-shell.max-w-none{width:min(1680px,100% - 8.5rem)!important}body:has(.study-nav) .page-shell{width:min(920px,100% - 5.25rem)}body:has(.study-nav):has(.edge-rail) .page-shell{width:min(920px,100% - 7.5rem)}body:has(.study-nav) .page-shell.max-w-none{width:min(1680px,100% - 5.5rem)!important}body:has(.study-nav):has(.edge-rail) .page-shell.max-w-none{width:min(1680px,100% - 7.75rem)!important}}.app-topbar__lead{flex:auto;align-items:center;gap:.85rem;min-width:0;display:flex}.app-topbar__study{min-width:0;max-width:min(28rem,52vw)}.study-crumb{align-items:baseline;gap:.35rem;min-width:0;font-size:.78rem;line-height:1.3;display:flex}.study-crumb__book{color:var(--muted);white-space:nowrap;text-overflow:ellipsis;max-width:11rem;font-weight:600;text-decoration:none;overflow:hidden}.study-crumb__book:hover{color:var(--ink);text-decoration:underline}.study-crumb__sep{color:var(--muted);opacity:.55;flex-shrink:0}.study-crumb__chapter{color:var(--ink);white-space:nowrap;text-overflow:ellipsis;font-weight:650;overflow:hidden}@media(max-width:639px){.app-topbar__study{display:none}}.study-nav{--study-nav-peek:2.05rem;z-index:41;width:var(--study-nav-peek);pointer-events:none;position:fixed;top:0;bottom:0;left:0}.study-nav__hit{width:calc(var(--study-nav-peek) + .45rem);pointer-events:auto;position:absolute;inset:0 auto 0 0}.study-nav__peek{pointer-events:auto;z-index:2;width:var(--study-nav-peek);border:1px solid var(--line);background:var(--paper);border-left:none;border-radius:0 12px 12px 0;flex-direction:column;justify-content:center;align-items:center;gap:.55rem;min-height:8.5rem;padding:.95rem .2rem;display:flex;position:absolute;top:50%;left:0;transform:translateY(-50%)}@supports (color:color-mix(in lab,red,red)){.study-nav__peek{background:color-mix(in srgb,var(--paper) 92%,#d8efe9)}}.study-nav__peek{cursor:pointer;box-shadow:4px 0 16px #16253214}.study-nav__grip{background:#0f766e80;border-radius:999px;flex-shrink:0;width:.22rem;height:1.45rem}.study-nav__peek-label{writing-mode:vertical-rl;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-deep);opacity:1;white-space:nowrap;flex-shrink:0;font-size:.7rem;font-weight:750;line-height:1.15;transform:rotate(180deg)}.study-nav__sheet{pointer-events:auto;top:50%;left:var(--study-nav-peek);z-index:1;border:1px solid var(--line);background:var(--paper);border-left:none;border-radius:0 14px 14px 0;max-height:min(78vh,36rem);position:absolute;transform:translate(-100%,-50%)}@supports (color:color-mix(in lab,red,red)){.study-nav__sheet{background:color-mix(in srgb,var(--paper) 96%,white)}}.study-nav__sheet{transition:transform .32s ease-in-out,box-shadow .32s ease-in-out;overflow:hidden;box-shadow:8px 0 28px #16253214}.study-nav:hover .study-nav__sheet,.study-nav.is-open .study-nav__sheet,.study-nav:focus-within .study-nav__sheet{transform:translateY(-50%);box-shadow:12px 0 36px #1625321f}.study-nav__flyout{width:min(16.5rem,100vw - 3.5rem);padding:.85rem .9rem .95rem;overflow:auto}.studio-rail{--studio-rail-peek:2.05rem;z-index:39;width:var(--studio-rail-peek);pointer-events:none;position:fixed;top:0;bottom:0;right:0}.studio-rail__hit{width:calc(var(--studio-rail-peek) + .45rem);pointer-events:auto;position:absolute;inset:0 0 0 auto}.studio-rail__peek{pointer-events:auto;z-index:2;width:var(--studio-rail-peek);border:1px solid var(--line);background:var(--paper);border-right:none;border-radius:12px 0 0 12px;flex-direction:column;justify-content:center;align-items:center;gap:.55rem;min-height:8.5rem;padding:.95rem .2rem;display:flex;position:absolute;top:50%;right:0;transform:translateY(-50%)}@supports (color:color-mix(in lab,red,red)){.studio-rail__peek{background:color-mix(in srgb,var(--paper) 92%,#d8efe9)}}.studio-rail__peek{cursor:pointer;box-shadow:-4px 0 16px #16253214}.studio-rail__grip{background:#0f766e80;border-radius:999px;flex-shrink:0;width:.22rem;height:1.45rem}.studio-rail__peek-label{writing-mode:vertical-rl;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-deep);opacity:1;white-space:nowrap;flex-shrink:0;font-size:.7rem;font-weight:750;line-height:1.15}.studio-rail__sheet{pointer-events:auto;top:50%;right:var(--studio-rail-peek);z-index:1;border:1px solid var(--line);background:var(--paper);border-right:none;border-radius:14px 0 0 14px;max-height:min(78vh,36rem);position:absolute;transform:translate(100%,-50%)}@supports (color:color-mix(in lab,red,red)){.studio-rail__sheet{background:color-mix(in srgb,var(--paper) 96%,white)}}.studio-rail__sheet{transition:transform .32s ease-in-out,box-shadow .32s ease-in-out;overflow:hidden;box-shadow:-8px 0 28px #16253214}.studio-rail:hover .studio-rail__sheet,.studio-rail.is-open .studio-rail__sheet,.studio-rail:focus-within .studio-rail__sheet{transform:translateY(-50%);box-shadow:-12px 0 36px #1625321f}.studio-rail__flyout{width:min(13.5rem,100vw - 5rem);padding:.85rem .85rem .95rem;overflow:auto}.studio-rail__head{justify-content:space-between;align-items:flex-start;gap:.5rem;margin-bottom:.75rem;display:flex}.studio-rail__heading{font-family:var(--font-display,inherit);letter-spacing:-.01em;color:var(--ink);margin:0;font-size:.95rem;font-weight:650}.studio-rail__sub{margin:.2rem 0 0}.studio-rail__section{margin-top:.85rem}.studio-rail__section:first-of-type{margin-top:0}.studio-rail__section-label{letter-spacing:.12em;text-transform:uppercase;color:var(--ink-muted);margin:0 0 .4rem;font-size:.62rem;font-weight:700}.studio-rail__stack{flex-direction:column;align-items:stretch;gap:.28rem;display:flex}.studio-rail__panel{pointer-events:auto;top:50%;right:calc(var(--studio-rail-peek) + .45rem);z-index:3;border:1px solid var(--line);background:var(--paper);border-radius:14px;flex-direction:column;width:min(18rem,100vw - 5rem);max-height:min(72vh,32rem);display:flex;position:absolute;transform:translateY(-50%)}@supports (color:color-mix(in lab,red,red)){.studio-rail__panel{background:color-mix(in srgb,var(--paper) 97%,white)}}.studio-rail__panel{overflow:hidden;box-shadow:-10px 0 32px #1625321f}.studio-rail__panel--wide{width:min(22rem,100vw - 4.5rem)}.studio-rail__panel-head{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:.5rem;padding:.7rem .85rem;display:flex}.studio-rail__panel-body{min-height:0;padding:.85rem;overflow:auto}.studio-rail__btn{width:100%;min-height:2.35rem;color:var(--ink);text-align:left;cursor:pointer;background:#e4f3f166;border:1px solid #0000;border-radius:10px;justify-content:flex-start;align-items:center;padding:.45rem .7rem;font-size:.8rem;font-weight:650;line-height:1.2;transition:background .14s,color .14s,border-color .14s;display:flex}.studio-rail__btn:hover{color:var(--accent-deep);background:#e4f3f1f2;border-color:#0f766e2e}.studio-rail__btn.is-active{color:#f4fffd;background:var(--accent-deep);border-color:var(--accent-deep)}.studio-rail__label{max-width:none}.studio-rail__divider{background:var(--line);width:100%;height:1px;margin:.15rem 0;display:block}.studio-stage{width:100%;min-height:min(70vh,640px)}.studio-stage--map .mind-map-panel{margin:0}.studio-stage--map .mind-map-canvas{height:min(68vh,560px);min-height:360px;max-height:none}.studio-stage .studio-panel{min-height:min(60vh,520px)}.studio-stage .studio-panel__body{max-height:none}.studio-stage .audio-overview__script{max-height:min(48vh,420px)}@media(max-width:767px){.studio-rail{top:auto;bottom:max(3.6rem,calc(.65rem + env(safe-area-inset-bottom,0px)));right:max(.55rem,env(safe-area-inset-right,0px));flex-direction:column;align-items:flex-end;gap:.4rem;width:auto;height:auto;display:flex;left:auto}body:has(.edge-rail) .studio-rail{right:max(.55rem,env(safe-area-inset-right,0px));bottom:max(6.4rem,calc(3.4rem + env(safe-area-inset-bottom,0px)))}.studio-rail__hit{display:none}.studio-rail__peek{border-right:1px solid var(--line);border-radius:14px;flex-direction:row;gap:.4rem;width:auto;min-height:0;padding:.55rem .75rem;position:static;transform:none;box-shadow:0 8px 22px #1625321a}.studio-rail__peek-label{writing-mode:horizontal-tb;transform:none}.studio-rail__grip{width:1.1rem;height:.22rem}.studio-rail__sheet{border-right:1px solid var(--line);border-radius:14px;max-height:none;position:static;right:auto;transform:none;box-shadow:0 10px 28px #1625321f}.studio-rail:not(.is-open) .studio-rail__sheet{display:none}.studio-rail.is-open .studio-rail__sheet{right:max(.55rem,env(safe-area-inset-right,0px));bottom:calc(3.6rem + env(safe-area-inset-bottom,0px));z-index:45;max-height:min(52vh,22rem);position:fixed;top:auto;transform:none}.studio-rail__panel{top:auto;bottom:calc(3.6rem + env(safe-area-inset-bottom,0px));right:max(.55rem,env(safe-area-inset-right,0px));left:max(.55rem,env(safe-area-inset-left,0px));z-index:46;width:auto;max-height:min(58vh,26rem);position:fixed;transform:none}.studio-rail__stack{flex-direction:column}}.study-nav__head{justify-content:space-between;align-items:flex-start;gap:.5rem;margin-bottom:.75rem;display:flex}.study-nav__book{color:var(--muted);margin:0 0 .25rem;font-size:.7rem;font-weight:650;line-height:1.3;text-decoration:none;display:block}.study-nav__book:hover{color:var(--ink);text-decoration:underline}.study-nav__heading{font-family:var(--font-display);letter-spacing:-.02em;color:var(--ink);margin:0;font-size:.95rem;font-weight:650}.study-nav__section{border-top:1px solid var(--line);margin-top:.65rem;padding-top:.55rem}.study-nav__section:first-of-type{border-top:none;margin-top:0;padding-top:0}.study-nav__section-row{justify-content:space-between;align-items:baseline;gap:.5rem;display:flex}.study-nav__section-label{letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:0 0 .35rem;font-size:.58rem;font-weight:700}.study-nav__meta{color:var(--muted);margin:0;font-size:.68rem}.study-nav__bar{background:#16253214;border-radius:999px;height:.28rem;margin-bottom:.55rem;overflow:hidden}.study-nav__bar>span{background:var(--accent-mid);border-radius:inherit;height:100%;transition:width .32s ease-in-out;display:block}.study-nav__list{flex-direction:column;gap:.12rem;margin:0;padding:0;list-style:none;display:flex}.study-nav__link{color:var(--ink);border-radius:9px;padding:.4rem;font-size:.78rem;font-weight:550;line-height:1.35;text-decoration:none;transition:background .28s ease-in-out;display:block}.study-nav__link:hover{background:#e4f3f18c}.study-nav__link.is-active{color:var(--accent-deep);background:#e4f3f1e6}.study-nav__link.is-dim{opacity:.55}.study-nav__link-text{-webkit-line-clamp:2;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.study-nav__row{border-radius:9px;align-items:flex-start;gap:.4rem;padding:.35rem .3rem;transition:background .28s ease-in-out;display:flex}.study-nav__row:hover{background:#e4f3f18c}.study-nav__row.is-active{background:#e4f3f1d9}.study-nav__row.is-done .study-nav__topic{color:var(--muted)}.study-nav__check{flex-shrink:0;margin-top:.12rem}.study-nav__check input{accent-color:var(--accent-deep)}.study-nav__topic{text-align:left;cursor:pointer;min-width:0;color:var(--ink);background:0 0;border:none;flex:1;padding:0;font-size:.78rem;font-weight:550;line-height:1.4}@media(max-width:767px){.study-nav{top:auto;bottom:max(.65rem,env(safe-area-inset-bottom,0px));left:max(.55rem,env(safe-area-inset-left,0px));flex-direction:column;align-items:flex-start;gap:.4rem;width:auto;height:auto;display:flex}.study-nav__hit{display:none}.study-nav__peek{border-left:1px solid var(--line);border-radius:14px;flex-direction:row;gap:.4rem;width:auto;min-height:0;padding:.55rem .75rem;position:static;transform:none;box-shadow:0 8px 22px #1625321a}.study-nav__peek-label{writing-mode:horizontal-tb;transform:none}.study-nav__grip{width:1.1rem;height:.22rem}.study-nav__sheet{border-left:1px solid var(--line);border-radius:14px;max-height:none;position:static;left:auto;transform:none;box-shadow:0 10px 28px #1625321f}.study-nav:not(.is-open) .study-nav__sheet{display:none}.study-nav.is-open .study-nav__sheet{left:max(.55rem,env(safe-area-inset-left,0px));bottom:calc(3.6rem + env(safe-area-inset-bottom,0px));z-index:45;max-height:min(62vh,28rem);position:fixed;top:auto;transform:none}}.edge-rail{z-index:40;pointer-events:none;flex-direction:row-reverse;align-items:center;gap:.45rem;display:flex;position:fixed;top:50%;right:.55rem;transform:translateY(-50%)}.edge-rail__stack{pointer-events:auto;border:1px solid var(--line);background:var(--paper);border-radius:18px;flex-direction:column;gap:.45rem;padding:.4rem .35rem;display:flex}@supports (color:color-mix(in lab,red,red)){.edge-rail__stack{background:color-mix(in srgb,var(--paper) 92%,white)}}.edge-rail__stack{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);max-height:min(78vh,36rem);overflow-y:auto;box-shadow:0 10px 28px #1625321a}.edge-rail__group{flex-direction:column;align-items:center;gap:.22rem;display:flex}.edge-rail__group-label{letter-spacing:.08em;text-transform:uppercase;color:var(--muted);writing-mode:horizontal-tb;text-align:center;max-width:3.2rem;margin:0 0 .1rem;font-size:.52rem;font-weight:700;line-height:1.2}.edge-rail__divider{background:var(--line);width:1.4rem;height:1px;margin:.15rem 0;display:block}.edge-rail__btn{min-width:2.65rem;min-height:2.65rem;color:var(--ink);letter-spacing:.01em;text-align:center;cursor:pointer;pointer-events:auto;background:#e4f3f173;border:1px solid #0000;border-radius:999px;justify-content:center;align-items:center;padding:.35rem .4rem;font-size:.62rem;font-weight:700;line-height:1.15;text-decoration:none;transition:background .14s,color .14s,border-color .14s,transform .14s;display:flex}.edge-rail__btn:hover{color:var(--accent-deep);background:#e4f3f1f2;border-color:#0f766e2e;transform:translateY(-1px)}.edge-rail__btn:active{transform:translateY(0)}.edge-rail__btn.is-active{color:#f4fffd;background:var(--accent-deep);border-color:var(--accent-deep)}.edge-rail__label{writing-mode:horizontal-tb;max-width:3.2rem}.edge-rail__panel{pointer-events:auto;border:1px solid var(--line);background:var(--paper);border-radius:14px;flex-direction:column;width:min(16.5rem,100vw - 5rem);max-height:min(78vh,36rem);padding:.85rem .9rem;transition:width .3s ease-in-out,opacity .3s ease-in-out;display:flex;box-shadow:0 14px 36px #16253224}.edge-rail__panel--wide{width:min(22.5rem,100vw - 4.5rem)}.edge-rail__panel-body{flex:auto;min-height:0;margin-top:.55rem;padding-right:.15rem;overflow:auto}.contribute-drawer{z-index:55;pointer-events:none;position:fixed;top:0;right:0;bottom:0;left:0}.contribute-drawer.is-open{pointer-events:auto}.contribute-drawer__backdrop{opacity:0;background:#16253233;transition:opacity .3s ease-in-out;position:absolute;top:0;right:0;bottom:0;left:0}.contribute-drawer.is-open .contribute-drawer__backdrop{opacity:1}.contribute-drawer__sheet{background:var(--paper);border-left:1px solid var(--line);flex-direction:column;width:min(22.5rem,100%);transition:transform .32s ease-in-out;display:flex;position:absolute;top:0;bottom:0;right:0;transform:translate(104%);box-shadow:-16px 0 40px #1625321f}.contribute-drawer.is-open .contribute-drawer__sheet{transform:translate(0)}.contribute-drawer__head{border-bottom:1px solid var(--line);flex:none;justify-content:space-between;align-items:flex-start;gap:.75rem;padding:1rem 1.05rem .75rem;display:flex}.contribute-drawer__title{font-family:var(--font-display);letter-spacing:-.02em;margin:0;font-size:1.15rem;font-weight:650}.contribute-drawer__body{flex:auto;min-height:0;padding:.9rem 1.05rem 1.25rem;overflow:auto}.contrib-form{flex-direction:column;gap:.75rem;display:flex}.contrib-form__seg{justify-content:flex-start;width:100%}.contrib-form__tf{flex-wrap:wrap;gap:.4rem;display:flex}.edge-rail__panel-head{justify-content:space-between;align-items:center;gap:.5rem;margin-bottom:.65rem;display:flex}@media(max-width:767px){.edge-rail{top:auto;bottom:max(.65rem,env(safe-area-inset-bottom,0px));left:auto;right:50%;transform:translate(50%)}.edge-rail__stack{border-radius:16px;flex-direction:row;padding:.28rem}.edge-rail__btn{min-width:2.9rem;min-height:2.45rem;font-size:.58rem}.edge-rail__panel{position:absolute;bottom:calc(100% + .45rem);right:50%;transform:translate(50%)}}.site-footer{border-top:1px solid var(--line);justify-content:center;align-items:center;margin-top:2.75rem;padding:1rem 0 1.5rem;display:flex}.site-footer__link{color:var(--muted);opacity:.55;font-size:.78rem;text-decoration:none}.site-footer__link:hover{color:var(--ink);opacity:1;text-decoration:underline}.page-shell--study-chrome .site-footer{border-top-color:#0000;margin-top:1.25rem;padding:.55rem 0 .85rem}.page-shell--study-chrome .site-footer__link{opacity:.35;font-size:.7rem}@media(max-width:767px){.page-shell--study-chrome{padding-top:.65rem;padding-bottom:1.5rem}.page-shell--study-chrome .app-topbar{gap:.35rem;margin-bottom:.45rem!important}.page-shell--study-chrome .brand-mark{font-size:1.05rem}.page-shell--study-chrome .chapter-toolbar{margin-bottom:.55rem;padding:.2rem 0}.page-shell--study-chrome .chapter-hero__title--compact{margin-bottom:.35rem}.page-shell--study-chrome .site-footer{display:none}}.brand-mark{font-family:var(--font-display);letter-spacing:-.03em;color:var(--ink);transition:color .16s var(--ease-out);align-items:center;gap:.55rem;font-size:1.38rem;font-weight:650;display:inline-flex}.brand-mark:hover{color:var(--accent-deep)}.brand-mark span{background:var(--accent);width:.52rem;height:.52rem;box-shadow:0 0 0 3px var(--accent-soft);transition:transform .22s var(--ease-out),box-shadow .22s var(--ease-out);border-radius:999px}.brand-mark:hover span{box-shadow:0 0 0 4px var(--accent-soft);transform:scale(1.12)}.surface-panel{background:var(--surface-solid)}@supports (color:color-mix(in lab,red,red)){.surface-panel{background:color-mix(in srgb,var(--surface-solid) 92%,var(--accent-soft))}}.surface-panel{border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.field{border:1px solid var(--line-strong);border-radius:var(--radius-sm);width:100%;color:var(--ink);background:#fff;outline:none;padding:.68rem .85rem;transition:border-color .15s,box-shadow .15s}.field:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.btn-primary{border-radius:var(--radius-sm);background:var(--accent-deep);color:#f4fffd;letter-spacing:.01em;cursor:pointer;border:none;justify-content:center;align-items:center;gap:.35rem;padding:.68rem 1.15rem;font-weight:650;transition:background .15s,transform .12s;display:inline-flex}.btn-primary:hover{background:var(--accent)}.btn-primary:disabled{opacity:.42;cursor:not-allowed}.btn-ghost{color:var(--ink-muted);border-radius:var(--radius-sm);cursor:pointer;background:0 0;border:none;align-items:center;padding:.4rem .7rem;font-size:.875rem;font-weight:550;transition:color .12s,background .12s;display:inline-flex}.btn-ghost:hover{color:var(--ink);background:#1625320d}.chip{cursor:pointer;border:1px solid #0000;border-radius:999px;align-items:center;padding:.4rem .85rem;font-size:.8rem;font-weight:650;transition:background .12s,color .12s,border-color .12s;display:inline-flex}.chip-idle{background:var(--paper);color:var(--ink-muted);border-color:var(--line)}.chip-idle:hover{color:var(--ink);border-color:var(--line-strong)}.chip-active{background:var(--accent-deep);color:#f4fffd;border-color:var(--accent-deep)}.mode-segment{border:1px solid var(--line);background:var(--surface-solid);border-radius:.85rem;flex-wrap:wrap;gap:.15rem;padding:.2rem;display:inline-flex}@supports (color:color-mix(in lab,red,red)){.mode-segment{background:color-mix(in srgb,var(--surface-solid) 82%,var(--paper-wash))}}.mode-segment{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.mode-segment .chip{min-height:2rem;transition:background .18s var(--ease-out),color .18s var(--ease-out),border-color .18s ease,transform .16s var(--ease-out);border-radius:.65rem;padding-inline:.85rem}.mode-segment--primary{box-shadow:var(--shadow)}.mode-segment--primary .chip-idle{background:0 0;border-color:#0000}.mode-segment--primary .chip-idle:hover{color:var(--ink);background:#e4f3f1a6}.mode-segment--primary .chip-active{transform:translateY(-.5px)}.mode-segment--secondary{-webkit-backdrop-filter:none;backdrop-filter:none;border:none;border-bottom:1px solid var(--line);box-shadow:none;background:0 0;border-radius:0;gap:.15rem .45rem;padding:0 0 .35rem}.mode-segment--secondary .chip{min-height:1.7rem;color:var(--muted);border-radius:0;padding-inline:.45rem;font-weight:500;box-shadow:none!important;background:0 0!important;border:none!important}.mode-segment--secondary .chip-active{color:var(--accent-deep)!important;box-shadow:inset 0 -2px 0 var(--accent)!important}.chapter-hero{margin-bottom:1.35rem}.chapter-toolbar{z-index:20;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:linear-gradient(#f6f5f0f7 55%,#f6f5f0b8 85%,#f6f5f000);border-bottom:1px solid #0000;flex-wrap:wrap;align-items:center;gap:.55rem .75rem;margin-bottom:1.1rem;padding:.45rem 0 .55rem;display:flex;position:sticky;top:0}.chapter-hero--study .chapter-toolbar{border-bottom-color:#1625320f}.chapter-toolbar__back{flex-shrink:0}.chapter-toolbar .mode-segment{flex:0 auto;justify-content:flex-start;min-width:0}.chapter-toolbar .mode-segment--primary{margin-left:0;margin-right:0}.chapter-toolbar .mode-segment--secondary{margin-left:auto}.chapter-hero--study .chapter-hero__title h1{font-size:clamp(1.35rem,2.4vw,1.85rem)}.chapter-hero__title h1{letter-spacing:-.03em;font-size:clamp(1.65rem,3.2vw,2.35rem);line-height:1.2}.chapter-hero__title--compact h1{font-size:clamp(1.35rem,2.6vw,1.85rem)}.chapter-read,.chapter-practice{flex-direction:column;gap:1.15rem;display:flex}.chapter-read__toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.5rem .75rem;display:flex}.chapter-prose{animation:.28s both chapter-fade-in}.chapter-chat-history{border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--paper)}@supports (color:color-mix(in lab,red,red)){.chapter-chat-history{background:color-mix(in srgb,var(--paper) 94%,white)}}.chapter-chat-history{padding:.55rem .75rem .65rem}.chapter-chat-history__summary{cursor:pointer;color:var(--accent-deep);font-size:.75rem;font-weight:650;list-style:none}.chapter-chat-history__summary::-webkit-details-marker{display:none}.chapter-chat-history__list{flex-direction:column;gap:.55rem;max-height:14rem;margin:.65rem 0 0;padding:0;list-style:none;display:flex;overflow:auto}.chapter-chat-history__item{font-size:.78rem;line-height:1.45}.chapter-chat-history__role{letter-spacing:.08em;text-transform:uppercase;color:var(--ink-muted);margin-bottom:.15rem;font-size:.62rem;font-weight:700;display:inline-block}.chapter-chat-history__quote{color:var(--muted);margin:0 0 .25rem;font-style:italic}.chapter-chat-history__body{color:var(--ink);white-space:pre-wrap;margin:0}.chapter-chat-history__item.is-assistant .chapter-chat-history__body{color:var(--ink-muted)}.srs-due-banner{background:radial-gradient(360px 120px at 0% 0%,#0f766e1a,transparent 65%),var(--surface-solid,#fff);border-color:#0f766e47}.srs-due-banner__grades{flex-wrap:wrap;gap:.35rem;display:flex}.group-pack{border-color:#0f766e38}.study-empty{border-radius:var(--radius-sm);background:#e4f3f159;border:1px dashed #0f766e47;padding:.85rem .95rem}.study-empty__title{color:var(--ink);margin:0 0 .2rem;font-size:.9rem;font-weight:650}.study-empty__more{margin-top:.45rem}.study-empty__more summary{cursor:pointer;color:var(--muted);font-size:.72rem;list-style:none}.study-empty__more summary::-webkit-details-marker{display:none}.study-empty__more[open] summary{color:var(--accent-deep);margin-bottom:.35rem}.study-panel-more{border-top:1px solid var(--line);padding-top:.65rem}.study-panel-more summary{cursor:pointer;color:var(--muted);font-size:.78rem;font-weight:600;list-style:none}.study-panel-more summary::-webkit-details-marker{display:none}.study-notes--focus{animation:.22s both chapter-fade-in}.pdf-note-card--jump{cursor:pointer;transition:border-color .14s,background .14s}.pdf-note-card--jump:hover{background:#e4f3f173;border-color:#0f766e59}.practice-hero--quiet{padding:1rem .25rem}.chapter-map{background:0 0;border:none;margin:0;padding:0;animation:.28s both chapter-fade-in}.book-hits{border-radius:var(--radius-sm);background:#f5ebe08c;border:1px solid #a67c5247;padding:.85rem 1rem}.book-hits__label{letter-spacing:.04em;text-transform:uppercase;color:var(--gold);font-size:.72rem;font-weight:700}.book-hits__item{color:var(--ink);font-size:.78rem}@keyframes chapter-fade-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@media(prefers-reduced-motion:reduce){.chapter-prose,.chapter-map{animation:none}}.sel-menu{display:inline-flex;position:relative}.sel-menu__panel{z-index:40;border:1px solid var(--line);background:var(--surface-solid,#fff);border-radius:10px;min-width:8.5rem;padding:.3rem;position:absolute;top:calc(100% + 4px);left:0;box-shadow:0 10px 28px #1625321f}.sel-menu__panel button{text-align:left;width:100%;color:var(--ink);cursor:pointer;background:0 0;border:0;border-radius:8px;padding:.45rem .6rem;font-size:.78rem;font-weight:600;display:block}.sel-menu__panel button:hover{background:var(--accent-soft)}.chapter-more{display:inline-flex;position:relative}.chapter-more__panel{z-index:40;border:1px solid var(--line);background:var(--surface-solid,#fff);border-radius:12px;width:min(16rem,80vw);padding:.75rem;position:absolute;top:calc(100% + 6px);right:0;box-shadow:0 12px 32px #16253224}.practice-hero{border-radius:var(--radius);background:radial-gradient(420px 180px at 100% 0,#0f766e1f,#0000 60%),linear-gradient(165deg,#e4f3f1f2,#fffcf8fa);border:1px solid #0f766e33;padding:1.5rem 1.5rem 1.65rem}.practice-hero__eyebrow{letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin:0 0 .35rem;font-size:.68rem;font-weight:700}.practice-more{border-top:1px solid var(--line);flex-direction:column;gap:.75rem;margin-top:1.25rem;padding-top:1.1rem;display:flex}.practice-more__row{flex-wrap:wrap;align-items:center;gap:.55rem .85rem;display:flex}.practice-more__label{letter-spacing:.12em;text-transform:uppercase;color:var(--ink-muted);margin:0;font-size:.68rem;font-weight:700}.practice-more__actions{flex-wrap:wrap;align-items:center;gap:.65rem 1rem;display:flex}.practice-more__error{color:var(--danger,#a33d3d);margin:0}.practice-more__custom{align-items:center;display:inline-flex}.practice-more__count-input{text-align:center;width:3.25rem;padding:.35rem .45rem;font-size:.85rem}.practice-item-diff{color:var(--accent-deep,var(--accent));letter-spacing:.08em}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.chapter-summary-disclosure summary{list-style:none}.chapter-summary-disclosure summary::-webkit-details-marker{display:none}.source-select-hint{border-radius:var(--radius-sm);background:#e4f3f173;border:1px dashed #0f766e59;padding:.85rem 1rem}.chapter-together__toggle{border-radius:var(--radius-sm);border:1px solid var(--line);width:100%;color:var(--ink);cursor:pointer;text-align:left;background:#fffcf8b3;justify-content:space-between;align-items:center;gap:.75rem;padding:.85rem 1rem;font-size:.9rem;font-weight:650;display:flex}.chapter-together__toggle:hover{background:var(--accent-soft);border-color:#0f766e47}.muted{color:var(--ink-muted)}.section-label{letter-spacing:.16em;text-transform:uppercase;color:var(--accent-deep);font-size:.7rem;font-weight:700}.fade-up{animation:fadeUp .55s var(--ease-out) both}.fade-up-delay{animation:fadeUp .65s var(--ease-out) 80ms both}.fade-up-late{animation:fadeUp .7s var(--ease-out) .16s both}@keyframes fadeUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.home-compose{flex-direction:column;gap:1.75rem;max-width:40rem;margin:0 auto;padding-top:.35rem;display:flex}.home-hero{text-align:center}.home-hero__brand{font-family:var(--font-display);letter-spacing:-.045em;color:var(--ink);margin:0;font-size:clamp(2.85rem,9vw,4.15rem);font-weight:650;line-height:1.05}.home-hero__line{font-family:var(--font-display);letter-spacing:-.02em;color:var(--accent-deep);margin:.85rem 0 0;font-size:clamp(1.2rem,3.2vw,1.45rem);font-weight:600}.home-hero__sub{max-width:26rem;color:var(--ink-muted);margin:.55rem auto 0;font-size:.95rem;line-height:1.55}.home-desk{border-radius:calc(var(--radius) + .15rem);border:1px solid var(--line);box-shadow:var(--shadow-lift);transition:transform .28s var(--ease-out),box-shadow .28s var(--ease-out),border-color .2s ease;background:linear-gradient(90deg,#0f766e0f 0,#0f766e0f .55rem,#0000 .55rem),linear-gradient(#fffcf8,#f4faf8);position:relative;overflow:hidden}.home-desk.is-dragging{border-color:#0f766e59;transform:translateY(-2px);box-shadow:0 22px 48px #0f766e24}.home-desk__spine{background:linear-gradient(180deg,var(--accent-mid),var(--accent-deep));opacity:.85;width:.55rem;position:absolute;top:0;bottom:0;left:0}.home-desk__ruled{pointer-events:none;opacity:.35;background-image:repeating-linear-gradient(#0000 0,#0000 1.7rem,#0f766e12 1.7rem,#0f766e12 calc(1.7rem + 1px));position:absolute;top:0;right:0;bottom:0;left:.55rem;-webkit-mask-image:linear-gradient(#0000,#000 18% 82%,#0000);mask-image:linear-gradient(#0000,#000 18%,#000 82%,#0000)}.home-desk__meta{padding:0 1.25rem 1.15rem 1.55rem}.home-shelf{flex-direction:column;gap:.65rem;display:flex}.home-shelf__head{justify-content:space-between;align-items:baseline;gap:.75rem;padding:0 .15rem;display:flex}.home-shelf__panel{border-radius:var(--radius);border:1px solid var(--line);background:var(--surface-solid)}@supports (color:color-mix(in lab,red,red)){.home-shelf__panel{background:color-mix(in srgb,var(--surface-solid) 88%,var(--paper-wash))}}.home-shelf__panel{box-shadow:var(--shadow);padding:.35rem .85rem .55rem}.dropzone{border-radius:var(--radius);background:linear-gradient(180deg,#fff 0%,var(--accent-soft) 100%);text-align:center;cursor:pointer;border:1.5px dashed #0f766e59;flex-direction:column;justify-content:center;align-items:center;gap:.45rem;min-height:188px;padding:1.75rem 1.25rem;transition:border-color .15s,box-shadow .15s;display:flex}.dropzone--desk{z-index:1;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#ffffff8c;border-style:dashed;border-color:#0f766e47;min-height:220px;margin:1.15rem 1.15rem .85rem 1.45rem;position:relative}.dropzone__kicker{letter-spacing:.14em;text-transform:uppercase;color:var(--accent-deep);opacity:.75;font-size:.62rem;font-weight:700}.dropzone:hover,.dropzone.is-dragging{border-color:var(--accent-deep);box-shadow:0 0 0 3px var(--accent-soft)}.progress-track{background:var(--paper-wash);border-radius:999px;width:100%;height:.28rem;overflow:hidden}.progress-fill{border-radius:inherit;background:var(--accent-deep);height:100%;transition:width .3s}.unit-link{border-radius:var(--radius-sm);transition:background .16s var(--ease-out),border-color .16s ease,transform .16s var(--ease-out);border:1px solid #0000;align-items:flex-start;gap:.75rem;padding:.9rem .95rem;display:flex}.unit-link:hover{background:#e4f3f18c;border-color:#0f766e1f;transform:translate(2px)}.unit-link__index{min-width:1.7rem;height:1.7rem;color:var(--accent-deep);background:var(--accent-soft);border-radius:.45rem;flex-shrink:0;justify-content:center;align-items:center;margin-top:.1rem;font-size:.72rem;font-weight:700;display:inline-flex}.unit-link__main{flex:1;min-width:0}.book-hub{flex-direction:column;gap:1.5rem;display:flex}.book-hub__hero{padding-bottom:.25rem}.book-hub__back{margin-bottom:.65rem;margin-left:-.35rem}.book-hub__title{letter-spacing:-.035em;margin:0;font-size:clamp(1.85rem,4vw,2.55rem);font-weight:650;line-height:1.15}.book-hub__meta{margin-top:.55rem}.book-hub__progress{align-items:center;gap:.65rem;max-width:22rem;margin-top:1rem;display:flex}.book-hub__actions{flex-wrap:wrap;gap:.45rem;margin-top:1rem;display:flex}.book-hub__units{border-radius:var(--radius);border:1px solid var(--line);background:var(--surface-solid)}@supports (color:color-mix(in lab,red,red)){.book-hub__units{background:color-mix(in srgb,var(--surface-solid) 90%,var(--paper-wash))}}.book-hub__units{box-shadow:var(--shadow);padding:.85rem .75rem}.book-hub__units-head{justify-content:space-between;align-items:baseline;gap:.75rem;padding:.25rem .55rem .65rem;display:flex}.book-hub__list{flex-direction:column;gap:.15rem;margin:0;padding:0;list-style:none;display:flex}.subtopic-chip{max-width:100%;color:var(--accent-deep);background:var(--accent-soft);white-space:nowrap;text-overflow:ellipsis;border-radius:999px;align-items:center;padding:.16rem .5rem;font-size:.68rem;font-weight:650;line-height:1.3;display:inline-flex;overflow:hidden}.prose{color:var(--ink);max-width:42rem;font-size:1.08rem}.study-md.study-textbook{--study-h-gap:1.65rem;max-width:46rem;color:var(--ink);letter-spacing:.005em;font-optical-sizing:auto;font-size:1.045rem;line-height:1.78}.study-md.study-textbook>:first-child{margin-top:0!important}.study-md.study-textbook a{color:var(--accent-deep);text-underline-offset:.18em;text-decoration:underline;text-decoration-thickness:1px}.study-md.study-textbook .study-h{font-family:var(--font-display);font-optical-sizing:auto;text-wrap:balance;line-height:1.28}.study-md.study-textbook .study-h--1{letter-spacing:-.028em;color:var(--ink);border-bottom:2.5px solid var(--accent);margin:.35rem 0 1rem;padding:0 0 .7rem;font-size:clamp(1.48rem,2.4vw,1.82rem);font-weight:700;box-shadow:0 6px 0 -4px #0f766e2e}.study-md.study-textbook .study-h--2{margin:var(--study-h-gap) 0 .55rem;letter-spacing:-.02em;color:var(--accent-deep);border-left:3.5px solid var(--accent);background:linear-gradient(90deg,#e4f3f1b3,#e4f3f126 55%,#0000);border-bottom:1px solid #0f766e24;border-radius:0 .35rem 0 0;padding:.2rem 0 .5rem .9rem;font-size:clamp(1.18rem,1.7vw,1.3rem);font-weight:650}.study-md.study-textbook .study-h--3{letter-spacing:-.012em;color:var(--ink);background-image:linear-gradient(var(--accent-mid),var(--accent-mid));background-position:0 100%;background-repeat:no-repeat;background-size:1.75rem 2.5px;margin:1.35rem 0 .4rem;padding:0 0 .38rem;font-size:1.08rem;font-weight:650}.study-md.study-textbook .study-h--4{letter-spacing:.01em;text-transform:none;color:var(--ink-muted);margin:1.1rem 0 .3rem;font-size:.98rem;font-weight:650}.study-md.study-textbook .study-h--2+.study-p,.study-md.study-textbook .study-h--3+.study-p,.study-md.study-textbook .study-h--1+.study-p{margin-top:.45rem}.study-md.study-textbook .study-p{-webkit-hyphens:auto;hyphens:auto;margin:.78rem 0;font-size:1.02em;line-height:1.8}.study-md.study-textbook .study-list{margin:.85rem 0 1rem;padding-left:1.35rem}.study-md.study-textbook .study-list li{margin:.38rem 0;padding-left:.15rem;line-height:1.7}.study-md.study-textbook .study-list--ul{list-style-type:disc}.study-md.study-textbook .study-list--ol{list-style-type:decimal}.study-md.study-textbook .study-list li::marker{color:var(--accent-mid);font-weight:650}.study-md.study-textbook strong{color:var(--accent-deep);-webkit-box-decoration-break:clone;box-decoration-break:clone;background:linear-gradient(#0000 64%,#0f766e24 64%);font-weight:700}.study-md.study-textbook em{color:#5c4632;font-style:italic}.study-md.study-textbook .study-rule{background:linear-gradient(90deg,#0000,#0f766e59 20%,#0f766e59 80%,#0000);border:0;height:1px;margin:1.65rem 0}.study-md__figure-wrap{margin:1.25rem 0 1.4rem}.study-md__figure,.study-md.study-textbook img{border:1px solid var(--line);background:#fff;border-radius:.45rem;width:auto;max-width:100%;height:auto;margin:0 auto;display:block;box-shadow:0 8px 22px #16253212}.study-md__figcaption{text-align:center;max-width:36rem;color:var(--ink-muted);margin:.55rem auto 0;font-size:.84rem;font-style:italic;line-height:1.45}.study-callout{border:1px solid #0f766e24;border-left:4px solid var(--accent);background:linear-gradient(180deg,#f4fbfa 0%,var(--accent-soft) 100%);color:var(--ink);border-radius:.4rem;margin:1.15rem 0;padding:.85rem 1.05rem .9rem 1.1rem;box-shadow:inset 0 1px #ffffffb3}.study-callout p{margin:.35rem 0}.study-callout p:first-child{margin-top:0}.study-callout p:last-child{margin-bottom:0}.study-callout--analogy{background:linear-gradient(#f5fafc,#e8f2f8);border-color:#3d7ea62e #3d7ea62e #3d7ea62e #3d7ea6}.study-callout--warning{color:#5c3a12;background:linear-gradient(#fffaf4,#fff4e8);border-color:#b4530929 #b4530929 #b4530929 #b45309}.study-callout--key{border-color:#0b5a5429;border-left-color:var(--accent-deep);background:linear-gradient(135deg,#e7f7f3,#eef8f6)}.study-callout--summary{background:linear-gradient(#f6f8fa,#eef2f5);border-color:#465a6e24 #465a6e24 #465a6e24 #4a6078}.study-callout--definition,.study-callout--note{border-color:#a67c5233;border-left-color:var(--gold);background:linear-gradient(180deg,#fbf7f1,var(--gold-soft))}.study-callout--exam{color:var(--ink);background:linear-gradient(#f7f9fb,#eef2f5);border-color:#1625321f #1625321f #1625321f #3d5568}.study-callout--note strong,.study-callout--definition strong{color:#7a5630}.study-callout--exam strong{color:#2f4556}.study-exam-heading{color:#2f4556!important;background:linear-gradient(90deg,#eef2f5,#eef2f559 70%,#0000)!important;border-left-color:#3d5568!important;margin-top:1.85rem!important}.study-table-wrap--exam{border-color:#3d556838;box-shadow:0 1px #fffc,0 10px 24px #1625320f}.study-table-wrap--exam .study-table thead th{background:linear-gradient(#4a6078,#3d5568)}.study-textbook .katex{font-size:1.05em}.study-textbook .katex-display{margin:.85rem 0;padding:.35rem 0;overflow:auto hidden}.study-callout--warning strong{color:#9a4a0a}.prose h2{font-family:var(--font-display);letter-spacing:-.02em;color:var(--ink);margin-top:1.55rem;margin-bottom:.45rem;font-size:1.28rem;font-weight:650}.prose h3{font-family:var(--font-display);color:var(--ink);margin-top:1.15rem;font-size:1.08rem;font-weight:650}.prose p{margin:.6rem 0}.prose strong{color:var(--ink);font-weight:700}.prose blockquote{border-left:3px solid var(--accent);color:var(--ink-muted);background:var(--accent-soft);border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:.9rem 0;padding:.65rem .9rem}.prose blockquote.study-ai-note{border-left-color:var(--gold);background:var(--gold-soft);color:var(--ink)}.prose blockquote.study-ai-note strong{color:#7a5630}.prose ul,.prose ol{margin:.55rem 0;padding-left:1.2rem}.prose li{margin:.2rem 0}.prose .study-textbook .study-h--2,.prose .study-md.study-textbook .study-h--2,.prose .study-textbook strong{color:var(--accent-deep)}.prose .study-textbook em{color:#5c4632;font-style:italic}.prose .study-textbook li::marker{color:var(--accent)}.study-table-wrap{-webkit-overflow-scrolling:touch;width:100%;max-width:100%;box-shadow:none;background:#fbfefe;border:1px solid #0f766e38;border-radius:10px;margin:1.05rem 0 1.25rem;overflow-x:auto}.study-table{border-collapse:separate;border-spacing:0;width:100%;min-width:16rem;font-size:.9rem;line-height:1.45}.study-table thead th,.study-table tbody td{outline:none;box-shadow:none!important;border:0!important}.study-table thead th{z-index:1;text-align:left;font-family:var(--font-display);letter-spacing:.01em;text-transform:none;color:#0b5a54;white-space:nowrap;vertical-align:bottom;background:#e4f3f1;padding:.65rem .8rem;font-size:.82rem;font-weight:700;position:sticky;top:0}.study-table tbody td{vertical-align:top;color:var(--ink);background:0 0;padding:.55rem .8rem}.study-table tbody tr:nth-child(odd) td{background:#fff}.study-table tbody tr:nth-child(2n) td{background:#e4f3f173}.study-table tbody tr:hover td{background:#e4f3f1b3}.study-table-wrap--boxes{box-shadow:none;background:0 0;border:none;border-radius:0;margin:1.15rem 0 1.35rem;overflow:visible}.study-table--boxes{table-layout:fixed;border-collapse:separate;border-spacing:.7rem 0;width:100%;min-width:0}.study-table--boxes thead th,.study-table--boxes tbody td{text-align:center;vertical-align:middle;font-family:var(--font-display);letter-spacing:-.01em;text-transform:none;white-space:normal;color:var(--ink);background:var(--surface);border:1px solid #0f766e47;border-radius:10px;padding:.85rem .75rem;font-size:.95rem;font-weight:650;box-shadow:0 1px #ffffffb3,0 6px 14px #1625320a}.study-table--boxes thead th{color:var(--accent-deep);background:linear-gradient(#f7fbfa,#eef6f4);position:static}.study-table--boxes tbody td{font-weight:500;font-family:var(--font-body,inherit);background:#fff;font-size:.92rem;line-height:1.55}.study-table--boxes tbody tr:nth-child(2n) td,.study-table--boxes tbody tr:hover td{background:#fff}.study-table--boxes tbody tr:last-child td{border-bottom:1px solid #0f766e47}@media(max-width:640px){.study-table--boxes{border-spacing:.45rem .55rem}.study-table--boxes thead th,.study-table--boxes tbody td{padding:.65rem .5rem;font-size:.86rem}}.study-md--compact.study-textbook{max-width:none;font-size:.8rem;line-height:1.45}.study-md--compact .study-p,.study-md--compact p{margin:.35rem 0}.study-md--compact .study-h--1{padding-bottom:.4rem;font-size:1.15rem}.study-md--compact .study-h--2{margin-top:.95rem;padding:.08rem 0 .3rem .55rem;font-size:.98rem}.study-md--compact .study-h--3{margin-top:.75rem;font-size:.92rem}.study-md--compact .study-table{font-size:.72rem}.study-md--compact .study-table thead th,.study-md--compact .study-table tbody td{padding:.4rem .55rem}.alert-error{background:var(--danger-soft);color:var(--danger);border-radius:var(--radius-sm);border:1px solid #a33d3d38;padding:.75rem .95rem;font-size:.9rem}.alert-info{background:var(--accent-soft);color:var(--accent-deep);border-radius:var(--radius-sm);border:1px solid #0f766e33;padding:.75rem .95rem;font-size:.9rem}.timer-badge{border:1px solid var(--line);color:var(--ink-muted);background:#fff;border-radius:999px;align-items:center;gap:.4rem;padding:.32rem .7rem;font-size:.8rem;font-weight:600;display:inline-flex}.timer-dot{background:var(--accent);border-radius:999px;width:.38rem;height:.38rem;animation:1.8s infinite pulseDot}@keyframes pulseDot{0%,to{opacity:1}50%{opacity:.35}}.library-shelf{margin:0;padding:0;list-style:none}.library-shelf__item{animation:fadeUp .45s var(--ease-out) both}.library-empty{text-align:center;padding:1.35rem .65rem 1.5rem}.library-row{border-bottom:1px solid var(--line);transition:background .18s var(--ease-out);justify-content:space-between;align-items:center;gap:.75rem;padding:.85rem .35rem .85rem .55rem;display:flex;position:relative}.library-row:last-child{border-bottom:none}.library-row:hover{background:#e4f3f173}.library-row:hover .library-open{color:var(--accent-deep)}.library-row__spine{background:var(--accent-mid);opacity:.55;border-radius:999px;width:.28rem;position:absolute;top:.55rem;bottom:.55rem;left:0}.library-row.tone-math .library-row__spine{background:var(--accent-deep)}.library-row.tone-phys .library-row__spine{background:#3d6b8a}.library-row.tone-hist .library-row__spine{background:var(--gold)}.library-row.tone-law .library-row__spine{background:#5c6b58}.library-row__body{padding-left:.55rem}.library-row__bar{background:#16253214;border-radius:999px;max-width:8.5rem;height:.22rem;margin-top:.4rem;display:block;overflow:hidden}.library-row__bar>span{border-radius:inherit;background:var(--accent-mid);height:100%;display:block}.library-open{color:var(--ink-soft);border-radius:999px;padding:.35rem .55rem;font-size:.8rem;font-weight:650;transition:color .12s,background .12s}.library-row:hover .library-open{background:var(--accent-soft)}.share-stats{letter-spacing:.01em;color:var(--ink-soft);align-items:center;gap:.35rem;margin:0;font-size:.78rem;font-weight:600;display:inline-flex}.share-stats__dot{opacity:.55;font-weight:500}.mind-map-panel{border-radius:var(--radius);border:1px solid var(--line);background:var(--surface-solid);margin:0;padding:.85rem .95rem .95rem}@supports (color:color-mix(in lab,red,red)){.mind-map-panel{background:color-mix(in srgb,var(--surface-solid) 92%,var(--accent-soft))}}.mind-map-panel{box-shadow:var(--shadow)}.mind-map-panel__head{justify-content:space-between;align-items:flex-start;gap:.75rem;margin-bottom:.55rem;display:flex}.mind-map-panel__tools{flex-shrink:0;gap:.25rem;display:flex}.mind-map-jumps{-webkit-overflow-scrolling:touch;scrollbar-width:thin;flex-wrap:nowrap;gap:.35rem;margin:0 0 .55rem;padding-bottom:.1rem;display:flex;overflow-x:auto}.mind-map-jump{border:1px solid var(--line);max-width:10.5rem;color:var(--ink);cursor:pointer;white-space:nowrap;text-overflow:ellipsis;background:#ffffffb8;border-radius:.55rem;flex:none;align-items:center;gap:.3rem;padding:.32rem .55rem;font-size:.7rem;font-weight:650;display:inline-flex;overflow:hidden}.mind-map-jump:hover{background:var(--accent-soft);border-color:#0f766e59}.mind-map-canvas{border-radius:calc(var(--radius-sm) + 2px);border:1px solid var(--line);touch-action:none;background:radial-gradient(420px 180px at 8% 12%,#0f766e0f,#0000 60%),#f7f5f1;height:340px;min-height:280px;max-height:min(42vh,380px);overflow:hidden}.mind-map-canvas .react-flow{width:100%;height:100%}.mind-map-canvas .react-flow__viewport{transition:none}.chapter-map .mind-map-panel{margin:0}.chapter-map .mind-map-panel__head{margin-bottom:.55rem}.mind-map-canvas--expanded{border-radius:0;flex:1;height:auto;min-height:0}.mind-map-panel--expanded{height:100%;padding:.75rem .85rem calc(.75rem + env(safe-area-inset-bottom,0px));background:var(--surface);flex-direction:column;margin:0;display:flex}.mind-map-overlay{z-index:70;background:var(--surface);position:fixed;top:0;right:0;bottom:0;left:0}.mind-map-sheet-backdrop{z-index:75;background:#0c182066;justify-content:center;align-items:flex-end;padding:0;animation:.2s both mind-detail-in;display:flex;position:fixed;top:0;right:0;bottom:0;left:0}.mind-map-canvas .react-flow__controls{box-shadow:none;border:1px solid var(--line);border-radius:8px;overflow:hidden}.mind-map-canvas .react-flow__controls-button{background:var(--surface);border-bottom-color:var(--line);fill:var(--ink-soft)}.mind-map-detail{border-radius:var(--radius-sm);background:linear-gradient(165deg,#fffcf8fa,#e4f3f18c);border:1px solid #0f766e33;margin-top:.75rem;padding:1rem 1.1rem 1.1rem;animation:.28s both mind-detail-in}.mind-map-detail--sheet{width:100%;max-height:min(72vh,560px);padding-bottom:calc(1rem + env(safe-area-inset-bottom,0px));border-radius:1.1rem 1.1rem 0 0;margin:0;overflow:auto;box-shadow:0 -12px 40px #0c18202e}.mind-map-detail__grab{background:#1625322e;border-radius:99px;width:2.5rem;height:.28rem;margin:0 auto .75rem}@keyframes mind-detail-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}.mind-map-detail__top{justify-content:space-between;align-items:flex-start;gap:.75rem;margin-bottom:.65rem;display:flex}.mind-map-detail__kind{letter-spacing:.07em;text-transform:uppercase;color:var(--accent-deep);margin:0 0 .2rem;font-size:.66rem;font-weight:700}.mind-map-detail__title{font-family:var(--font-display);letter-spacing:-.02em;color:var(--ink);margin:0;font-size:1.15rem;font-weight:650;line-height:1.25}.mind-map-detail__actions{flex-shrink:0;gap:.35rem;display:flex}.mind-map-detail__body{color:var(--ink);font-size:.9rem;line-height:1.55}.mind-map-detail__body p{margin:0 0 .65rem}.mind-map-detail__body p:last-child{margin-bottom:0}.mind-map-detail__points{border-top:1px solid #16253214;margin-top:.85rem;padding-top:.75rem}.mind-map-detail__points-label{letter-spacing:.06em;text-transform:uppercase;color:var(--ink-muted);margin:0 0 .4rem;font-size:.68rem;font-weight:700}.mind-map-detail__points ul{color:var(--ink-muted);margin:0;padding-left:1.1rem;font-size:.84rem;line-height:1.45}.mind-map-detail__points li{margin-bottom:.25rem}.mind-map-legend{color:var(--ink-muted);flex-wrap:wrap;gap:.35rem .85rem;margin:.55rem 0 0;padding:0;font-size:.72rem;list-style:none;display:flex}.mind-map-legend__dot{vertical-align:middle;border-radius:99px;width:.45rem;height:.45rem;margin-right:.35rem;display:inline-block}.mind-node{text-align:left;max-width:168px;color:var(--ink);border:1px solid var(--line);white-space:normal;overflow-wrap:anywhere;word-break:break-word;cursor:pointer;background:#ffffffeb;border-radius:999px;padding:.4rem .6rem;font-size:.72rem;font-weight:650;line-height:1.3;transition:border-color .15s,box-shadow .15s;box-shadow:0 1px 2px #1625320a}.mind-node:hover{border-color:#0f766e59;box-shadow:0 2px 8px #16253214}.mind-node--central{max-width:140px;font-family:var(--font-display);text-align:center;letter-spacing:-.02em;color:#fff;background:var(--accent-deep);border-color:#0000;border-radius:1.1rem;padding:.55rem .8rem;font-size:.84rem;font-weight:700;box-shadow:0 4px 14px #0f766e33}.mind-node--branch{border-radius:.85rem;font-weight:700}.mind-node--leaf{max-width:200px;color:var(--ink-muted);background:#fffcf8f2;border-radius:.7rem;font-size:.68rem;font-weight:550}.study-toolbar{border-radius:var(--radius-sm);background:var(--paper);border:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:.45rem;padding:.55rem .65rem;display:flex}.study-now-reading{border-radius:var(--radius-sm);background:var(--gold-soft);color:var(--ink);border:1px solid #a67c5238;margin:0 0 .85rem;padding:.55rem .75rem;font-size:.8rem}.selection-action-bar{z-index:45}.selection-action-bar--float{flex-direction:column;gap:.45rem;max-width:min(100%,22rem);display:flex;position:absolute}.selection-action-bar__preview{color:var(--ink-soft);margin:0;font-size:.72rem;line-height:1.35}.selection-action-bar__actions{flex-wrap:wrap;gap:.4rem;display:flex}@media(max-width:767px),(hover:none)and (pointer:coarse){.selection-action-bar--float{right:.75rem;bottom:max(.75rem,env(safe-area-inset-bottom,0px));background:var(--paper);border-radius:14px;max-width:none;padding:.7rem .75rem;position:fixed;top:auto!important;left:.75rem!important}@supports (color:color-mix(in lab,red,red)){.selection-action-bar--float{background:color-mix(in srgb,var(--paper) 94%,white)}}.selection-action-bar--float{border:1px solid var(--line);box-shadow:0 10px 28px #1c242c24}.selection-action-bar__actions{width:100%}.selection-action-bar__actions .btn-primary,.selection-action-bar__actions .btn-ghost{flex:auto;justify-content:center;min-height:2.5rem}.selection-chat-panel{z-index:55;max-height:min(70vh,32rem);overflow:auto;box-shadow:0 12px 32px #1c242c2e;top:auto!important;left:.75rem!important;right:.75rem!important;bottom:max(.75rem,env(safe-area-inset-bottom,0px))!important;width:auto!important;position:fixed!important}}.tour-overlay{z-index:80;padding:1rem;padding-bottom:max(1rem,env(safe-area-inset-bottom,0px));-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#1c242c6b;place-items:end center;display:grid;position:fixed;top:0;right:0;bottom:0;left:0}@media(min-width:768px){.tour-overlay{place-items:center}}.tour-card{background:var(--paper);border:1px solid var(--line);border-radius:16px;width:min(420px,100%);padding:1.15rem 1.2rem 1.25rem;animation:.28s tour-in;box-shadow:0 18px 40px #1c242c2e}@keyframes tour-in{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}.tour-visual{background:linear-gradient(160deg,#ffffffb3,transparent 55%),var(--accent-soft);border:1px solid #0b5a541f;border-radius:12px;min-height:7.5rem;padding:.85rem}.tour-mock-drop{min-height:5.5rem;color:var(--ink-soft);background:#ffffff8c;border:1.5px dashed #0b5a5459;border-radius:10px;place-items:center;gap:.35rem;font-size:.78rem;display:grid}.tour-mock-file{background:var(--ink);color:#f5f8fb;letter-spacing:.04em;border-radius:6px;justify-content:center;align-items:center;width:2.4rem;height:2.8rem;font-size:.65rem;font-weight:700;display:inline-flex}.tour-mock-chips{flex-wrap:wrap;gap:.35rem;margin-bottom:.65rem;display:flex}.tour-chip{border:1px solid var(--line);color:var(--ink-soft);background:#ffffffb3;border-radius:999px;padding:.25rem .55rem;font-size:.68rem;font-weight:650}.tour-chip.on{background:var(--ink);border-color:var(--ink);color:#f5f8fb}.tour-mock-lines{gap:.35rem;display:grid}.tour-mock-lines i{background:#1c242c1f;border-radius:999px;width:100%;height:.45rem;display:block}.tour-mock-lines i.short{width:62%}.tour-mock-select{color:var(--ink);margin:0 0 .65rem;font-size:.78rem;line-height:1.45}.tour-mock-select mark{background:var(--gold-soft);color:inherit;border-radius:3px;padding:0 .15rem}.tour-mock-btn{background:var(--ink);color:#f5f8fb;border-radius:8px;padding:.4rem .7rem;font-size:.7rem;font-weight:650;display:inline-flex}.tour-mock-q{color:var(--ink);margin:0 0 .5rem;font-size:.8rem;font-weight:650}.tour-mock-opts{gap:.35rem;display:grid}.tour-mock-opts span{border:1px solid var(--line);color:var(--ink-soft);background:#ffffffbf;border-radius:8px;padding:.4rem .55rem;font-size:.72rem}.tour-mock-opts span.on{color:var(--accent-deep);background:#fffffff2;border-color:#0b5a5466;font-weight:650}.tour-mock-score{color:var(--accent-deep);margin:.55rem 0 0;font-size:.78rem;font-weight:700}.tour-mock-share{border:1px solid var(--line);background:#ffffffbf;border-radius:8px;justify-content:space-between;align-items:center;gap:.5rem;margin-bottom:.65rem;padding:.55rem .65rem;font-size:.72rem;display:flex}.tour-mock-share code{color:var(--ink-soft);font-size:.68rem}.tour-dots{gap:.35rem;margin-top:1rem;display:flex}.tour-dots span{background:#1c242c26;border-radius:999px;width:.4rem;height:.4rem}.tour-dots span.on{background:var(--accent-deep);width:1rem}.study-split{flex-direction:column;gap:.55rem;min-height:min(82vh,920px);display:flex}.study-split__toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.45rem .75rem;display:flex}.study-split__mobile-tabs{flex-wrap:wrap;gap:.4rem;display:flex}.study-split__presets{flex-wrap:wrap;align-items:center;gap:.35rem .45rem}.study-split__presets-label{letter-spacing:.1em;text-transform:uppercase;color:var(--ink-muted);margin:0 .15rem 0 0;font-size:.65rem;font-weight:700}.study-split__presets-hint{margin-left:.35rem;font-size:.68rem}.study-split__shell{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--paper);flex-direction:column;gap:.75rem;min-height:min(78vh,880px);display:flex;overflow:hidden}@media(min-width:768px){.study-split__shell{flex-direction:row;align-items:stretch;min-height:min(82vh,960px)}}.study-split__pane{flex:auto;min-width:0;min-height:0;display:none;overflow:hidden}.study-split__pane.is-mobile-show{flex-direction:column;min-height:min(68vh,720px);display:flex}@media(min-width:768px){.study-split__pane{flex-direction:column;min-height:min(82vh,960px);display:flex}}.study-split__pane--pdf{background:#e8ecef}.study-split__pane--notes{background:var(--surface);overflow:auto}.study-split__notes-inner{flex-direction:column;max-width:100%;height:100%;min-height:0;padding:.85rem 1rem 1.1rem;display:flex;overflow:auto}.page-shell--study-chrome .chapter-hero--study{margin-bottom:.65rem}@media(min-width:768px){.page-shell--study-chrome .app-topbar{margin-bottom:.85rem!important}.page-shell--study-chrome .chapter-hero__title:not(.chapter-hero__title--compact){margin-bottom:.35rem}}.study-topic-layout{display:block}.topic-rail{z-index:41;pointer-events:none;width:1.1rem;position:fixed;top:0;bottom:0;right:0}.topic-rail__hit{pointer-events:auto;width:1.35rem;position:absolute;inset:0 0 0 auto}.topic-rail__sheet{pointer-events:auto;border:1px solid var(--line);background:var(--paper);border-right:none;border-radius:14px 0 0 14px;flex-direction:row-reverse;align-items:stretch;max-height:min(72vh,32rem);display:flex;position:absolute;top:50%;right:.35rem;transform:translate(calc(100% - .85rem),-50%)}@supports (color:color-mix(in lab,red,red)){.topic-rail__sheet{background:color-mix(in srgb,var(--paper) 96%,white)}}.topic-rail__sheet{transition:transform .32s ease-in-out,box-shadow .32s ease-in-out;overflow:hidden;box-shadow:-8px 0 28px #16253214}.topic-rail:hover .topic-rail__sheet,.topic-rail.is-open .topic-rail__sheet,.topic-rail:focus-within .topic-rail__sheet{transform:translateY(-50%);box-shadow:-12px 0 36px #1625321f}.topic-rail__peek{background:#e4f3f18c;border-left:1px solid #0f766e1f;flex-direction:column;flex-shrink:0;justify-content:center;align-items:center;gap:.55rem;width:1.55rem;padding:.75rem .15rem;display:flex}.topic-rail__grip{background:#0f766e73;border-radius:999px;width:.22rem;height:1.6rem}.topic-rail__peek-label{writing-mode:vertical-rl;letter-spacing:.06em;text-transform:uppercase;color:var(--accent-deep);opacity:.85;font-size:.62rem;font-weight:700;transform:rotate(180deg)}.topic-rail__flyout{opacity:.92;width:15.5rem;padding:.85rem .9rem .95rem;transition:opacity .32s ease-in-out;overflow:auto}.topic-rail:hover .topic-rail__flyout,.topic-rail.is-open .topic-rail__flyout,.topic-rail:focus-within .topic-rail__flyout{opacity:1}.topic-rail__head{justify-content:space-between;align-items:flex-start;gap:.5rem;margin-bottom:.5rem;display:flex}.topic-rail__heading{font-family:var(--font-display);letter-spacing:-.02em;color:var(--ink);margin:0;font-size:.95rem;font-weight:650}.topic-rail__meta{color:var(--muted);margin:.15rem 0 0;font-size:.7rem}.topic-rail__bar{background:#16253214;border-radius:999px;height:.28rem;margin-bottom:.65rem;overflow:hidden}.topic-rail__bar>span{background:var(--accent-mid);border-radius:inherit;height:100%;transition:width .32s ease-in-out;display:block}.topic-rail__list{flex-direction:column;gap:.15rem;margin:0;padding:0;list-style:none;display:flex}.topic-rail__row{border-radius:9px;align-items:flex-start;gap:.4rem;padding:.4rem .35rem;transition:background .28s ease-in-out;display:flex}.topic-rail__row:hover{background:#e4f3f18c}.topic-rail__row.is-active{background:#e4f3f1d9}.topic-rail__row.is-done .topic-rail__link{color:var(--muted)}.topic-rail__check{flex-shrink:0;margin-top:.12rem}.topic-rail__check input{accent-color:var(--accent-deep)}.topic-rail__link{text-align:left;cursor:pointer;min-width:0;color:var(--ink);background:0 0;border:none;flex:1;padding:0;font-size:.8rem;font-weight:550;line-height:1.4}.topic-acc{border:1px solid var(--line);background:var(--paper);border-radius:12px;scroll-margin-top:5.5rem;scroll-margin-bottom:2rem;transition:border-color .3s ease-in-out;overflow:hidden}.topic-acc.is-open{border-color:#0f766e47}.topic-acc__head{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:.5rem;padding:.75rem .85rem .55rem;display:flex}.topic-acc__toggle{text-align:left;cursor:pointer;width:100%;color:var(--ink);background:0 0;border:none;align-items:flex-start;gap:.4rem;padding:0;display:flex}.topic-acc__chev{color:var(--muted);margin-top:.2rem;font-size:.75rem}.topic-acc__num{color:var(--muted);margin-top:.1rem;font-size:.85rem;font-weight:650}.topic-acc__title{font-family:var(--font-display);letter-spacing:-.02em;font-size:1.02rem;font-weight:650;line-height:1.3}.topic-acc__tools{flex-wrap:wrap;align-items:center;gap:.3rem;display:flex}.topic-acc__ai{border:1px solid var(--line);color:var(--accent-deep);cursor:pointer;background:#e4f3f173;border-radius:999px;padding:.28rem .5rem;font-size:.68rem;font-weight:650;transition:background .3s ease-in-out,border-color .3s ease-in-out}.topic-acc__ai:hover{background:#e4f3f1e6;border-color:#0f766e4d}.topic-acc__done input{accent-color:var(--accent-deep)}.topic-acc__ai-box{opacity:0;max-height:0;padding:0 .85rem;transition:max-height .3s ease-in-out,opacity .3s ease-in-out,padding .3s ease-in-out;overflow:hidden}.topic-acc__ai-box.is-show{opacity:1;max-height:8rem;padding:0 .85rem .65rem}.topic-acc__summary{background:#fbfefe;border:1px solid #0f766e29;border-radius:10px;margin:0 .85rem .85rem;padding:.7rem .8rem}.topic-acc__panel{grid-template-rows:0fr;transition:grid-template-rows .36s ease-in-out;display:grid}.topic-acc__panel.is-open{grid-template-rows:1fr}.topic-acc__panel-inner{min-height:0;padding:0 .85rem;overflow:hidden}.topic-acc__panel.is-open .topic-acc__panel-inner{padding-bottom:.95rem}.topic-quiz-overlay{z-index:70;background:#16253259;place-items:center;padding:1rem;display:grid;position:fixed;top:0;right:0;bottom:0;left:0}.topic-quiz-card{border:1px solid var(--line);background:var(--paper);border-radius:14px;width:min(26rem,100%);padding:1.1rem 1.15rem;box-shadow:0 16px 40px #16253229}.topic-quiz-choice{text-align:left;border:1px solid var(--line);background:var(--surface);cursor:pointer;border-radius:10px;width:100%;padding:.65rem .75rem;font-size:.82rem;line-height:1.4;transition:background .3s ease-in-out,border-color .3s ease-in-out}.topic-quiz-choice:disabled{cursor:default}.topic-quiz-choice.is-correct{background:#e4f3f1d9;border-color:#0f766e73}.topic-quiz-choice.is-wrong{background:#a33d3d14;border-color:#a33d3d59}.blur-chat__msg{background:#ffffff8c;border:1px solid #1625320f;border-radius:8px;padding:.45rem .55rem}.blur-chat__gated{border:1px solid var(--line);border-radius:12px;margin-top:.15rem;position:relative;overflow:hidden}.blur-chat__fog{filter:blur(3.5px);-webkit-user-select:none;user-select:none;pointer-events:none;opacity:.85;padding:.55rem}.blur-chat__cta{text-align:center;-webkit-backdrop-filter:blur(6px);background:#fffcf88c;flex-direction:column;justify-content:center;align-items:center;padding:1rem;display:flex;position:absolute;top:0;right:0;bottom:0;left:0}.notes-rail{flex-direction:column;height:100%;min-height:0;display:flex}.notes-rail__head{border-bottom:1px solid var(--line);background:var(--surface);flex:none;justify-content:space-between;align-items:flex-start;gap:.75rem;padding:.85rem 1rem .7rem;display:flex}@supports (color:color-mix(in lab,red,red)){.notes-rail__head{background:color-mix(in srgb,var(--surface) 92%,white)}}.notes-rail__head{z-index:2;position:sticky;top:0}.notes-rail__title{font-family:var(--font-display);letter-spacing:-.02em;color:var(--ink);margin:0;font-size:1.05rem;font-weight:650}.notes-rail__sub{color:var(--muted);margin:.15rem 0 0;font-size:.72rem}.notes-rail__actions{flex-wrap:wrap;justify-content:flex-end;gap:.25rem;display:flex}.notes-rail__toast{margin:.65rem 1rem 0}.notes-rail__body{flex:auto;min-height:0;padding:.85rem 1rem 1.25rem;overflow:auto}.notes-rail--focus .notes-rail__workspace{flex-direction:column;gap:.85rem;display:flex}.notes-empty{text-align:left;padding:1.35rem .25rem}.notes-empty__title{font-family:var(--font-display);letter-spacing:-.02em;color:var(--ink);margin:0 0 .35rem;font-size:1.05rem;font-weight:650}.notes-feed{flex-direction:column;gap:.45rem;margin:0;padding:0;list-style:none;display:flex}.notes-card{text-align:left;border:1px solid var(--line);background:var(--paper);cursor:pointer;border-radius:10px;flex-direction:column;align-items:flex-start;gap:.28rem;width:100%;padding:.7rem .8rem;transition:border-color .14s,background .14s,transform .14s;display:flex}.notes-card:hover{background:#e4f3f166;border-color:#0f766e59}.notes-card__meta{letter-spacing:.02em;text-transform:uppercase;color:var(--accent-deep);align-items:center;gap:.35rem;font-size:.68rem;font-weight:700;display:inline-flex}.notes-card__quote{color:var(--muted);font-size:.78rem;line-height:1.4}.notes-card__body{color:var(--ink);font-size:.82rem;line-height:1.45}.notes-hits{border-bottom:1px solid var(--line);margin-bottom:.85rem;padding-bottom:.85rem}.notes-hits__list{flex-direction:column;gap:.35rem;margin:.5rem 0 0;padding:0;list-style:none;display:flex}.notes-hit{text-align:left;cursor:pointer;background:#9a7b4f14;border:1px solid #9a7b4f47;border-radius:8px;flex-direction:column;align-items:flex-start;gap:.15rem;width:100%;padding:.55rem .65rem;display:flex}.notes-hit__page{color:var(--ink);font-size:.72rem;font-weight:700}.notes-hit__excerpt{color:var(--muted);font-size:.75rem;line-height:1.4}.study-split__handle{cursor:col-resize;background:0 0;border:none;flex:0 0 10px;justify-content:center;align-items:center;padding:0}.study-split__handle span{background:#1625322e;border-radius:999px;width:3px;height:2.5rem}.study-split__handle:hover span,.study-split__handle:focus-visible span{background:var(--accent-mid)}.pdf-viewer{height:100%;min-height:inherit;flex-direction:column;display:flex}.pdf-viewer--native{min-height:min(78vh,900px)}.pdf-viewer__native-frame{background:#525659;border:0;flex:1;width:100%;height:100%;min-height:min(78vh,900px)}.pdf-viewer__chrome{border-bottom:1px solid var(--line);background:var(--surface);align-items:center;gap:.35rem;padding:.4rem .55rem;display:flex}.pdf-viewer__spacer{flex:1}.pdf-viewer__scroll{background:#e8e6e1;flex:1;min-height:min(70vh,820px);padding:.75rem;position:relative;overflow:auto}.pdf-page-host{background:#fff;width:fit-content;margin:0 auto;position:relative;box-shadow:0 8px 28px #1625321f}.pdf-measure-layer{visibility:hidden;pointer-events:none;position:absolute;top:0;left:-10000px;overflow:hidden}.pdf-page-host--composed{background:#fff;flex-direction:column;align-items:stretch;width:fit-content;margin:0 auto;display:flex;box-shadow:0 8px 28px #1625321f}.pdf-band{background:#fff;flex-shrink:0;position:relative;overflow:hidden}.pdf-band__text{z-index:2;top:0;left:0;position:absolute!important}.pdf-insert{box-sizing:border-box;background:linear-gradient(#e4f3f18c,#fffcf8fa);border-top:1px dashed #0f766e59;border-bottom:1px dashed #0f766e59;width:100%;padding:.85rem 1rem 1rem}.pdf-insert--ai{background:linear-gradient(#e4f3f1b3,#fffcf8fa)}.pdf-insert--draft{border-top-style:solid;border-bottom-style:solid;border-color:var(--accent);box-shadow:inset 0 0 0 1px #0f766e1f}.pdf-insert__head{justify-content:space-between;align-items:flex-start;gap:.75rem;display:flex}.pdf-insert__label{letter-spacing:.08em;text-transform:uppercase;color:var(--accent-deep);margin:0;font-size:.68rem;font-weight:750}.pdf-insert__quote{color:var(--ink-muted);margin:.35rem 0 0;font-size:.78rem;font-style:italic;line-height:1.45}.pdf-insert__question{color:var(--ink);margin:.55rem 0 0;font-size:.8rem;font-weight:650}.pdf-insert__body{margin-top:.55rem}.pdf-insert__actions{flex-wrap:wrap;gap:.5rem;margin-top:.75rem;display:flex}.pdf-ai-panel__quote{border-left:3px solid var(--accent);background:var(--accent-soft);color:var(--ink-muted);border-radius:8px;margin:0;padding:.55rem .7rem;font-size:.8rem;line-height:1.45}.pdf-page-canvas{max-width:100%;height:auto;display:block}.pdf-text-layer,.textLayer{opacity:1;transform-origin:0 0;z-index:2;line-height:1;position:absolute;top:0;right:0;bottom:0;left:0;overflow:hidden}.textLayer span,.textLayer br{color:#0000;white-space:pre;cursor:text;transform-origin:0 0;position:absolute}.textLayer ::selection{background:#0f766e61}.pdf-selection-bar{border:1px solid var(--line);background:var(--surface-solid);border-radius:12px;max-width:min(92vw,320px);padding:.55rem .65rem .6rem}@supports (color:color-mix(in lab,red,red)){.pdf-selection-bar{background:color-mix(in srgb,var(--surface-solid) 94%,white)}}.pdf-selection-bar{box-shadow:0 12px 32px #16253229}.pdf-selection-bar .selection-action-bar__preview{color:var(--ink-muted);font-size:.7rem}.pdf-selection-bar .selection-action-bar__actions{flex-wrap:nowrap;align-items:center;max-width:none}.pdf-selection-bar .sel-menu__panel{left:auto;right:0}.pdf-ai-panel{padding:1rem 1.1rem}.cite-preview{border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--surface-2,#0f172a08);white-space:pre-wrap;max-height:10rem;color:var(--ink-soft);margin:0;padding:.7rem .85rem;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.72rem;line-height:1.45;overflow:auto}.textLayer span.is-highlighted{mix-blend-mode:multiply;background:#facc15b8;box-shadow:0 0 0 1px #ca8a0440}.textLayer span.is-omitted{visibility:hidden!important;opacity:0!important}.textLayer span.pdf-sel-hit{mix-blend-mode:multiply;background:#0f766e57;border-radius:1px}.pdf-note-card{border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--paper);padding:.75rem .85rem}.study-pdf-reader{height:100%;min-height:inherit;background:radial-gradient(ellipse 90% 50% at 50% 0%,#0f766e0f,transparent 55%),var(--paper-wash);flex-direction:column;display:flex;position:relative}.study-pdf-pager{z-index:25;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);color:var(--muted,#64748b);background:#ffffffeb;border:1px solid #1625321a;border-radius:999px;align-items:center;gap:.1rem;padding:.12rem .28rem;font-size:.68rem;line-height:1;display:inline-flex;position:absolute;top:.45rem;right:.55rem;box-shadow:0 4px 14px #16253214}.study-pdf-pager__num{text-align:center;letter-spacing:.01em;min-width:2.4rem;padding:0 .15rem;font-weight:550}.page-jump{font-size:inherit;align-items:center;gap:.15rem;line-height:1;display:inline-flex}.page-jump__input{width:2.6rem;min-width:2.2rem;color:var(--ink);font:inherit;font-variant-numeric:tabular-nums;text-align:center;background:#ffffffb3;border:1px solid #0000;border-radius:.3rem;outline:none;margin:0;padding:.15rem .2rem;font-weight:600}.page-jump__input:hover{border-color:#1625321f}.page-jump__input:focus{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft);background:#fff}.page-jump__sep{opacity:.7}.page-jump__max{min-width:1.2rem;font-weight:550}.pdf-viewer__chrome .page-jump__input{width:2.8rem;padding:.12rem .25rem;font-size:.75rem}.study-pdf-pager__btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;color:inherit;cursor:pointer;background:0 0;border:0;border-radius:999px;justify-content:center;align-items:center;width:1.35rem;height:1.35rem;font-size:.95rem;line-height:1;display:inline-flex}.study-pdf-pager__btn:hover:not(:disabled){color:var(--ink);background:#0f766e1a}.study-pdf-pager__btn:disabled{opacity:.35;cursor:default}.study-pdf-reader__scroll{flex:1;padding:.85rem .75rem 1.25rem;position:relative;overflow:auto}.study-pdf-page{border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--surface);max-width:42rem;color:var(--ink);margin:0 auto;padding:1.35rem 1.5rem 2rem;box-shadow:0 10px 28px #1625320f}.study-pdf-page__title{letter-spacing:.04em;text-transform:uppercase;color:var(--muted,#64748b);margin:0 0 .85rem;font-size:.72rem;font-weight:550}.study-pdf-page__head{border-bottom:1px solid var(--line);margin-bottom:1.1rem;padding-bottom:.85rem}.study-pdf-page__kicker{font-family:var(--font-display);letter-spacing:-.02em;color:var(--ink);margin:0;font-size:1.55rem;font-weight:600;line-height:1.25}.study-pdf-page__body{margin-top:.25rem}.study-pdf-page__body .study-md.study-textbook{max-width:min(46rem,100%)}.study-pdf-page__body .study-md.study-textbook .study-h--1:first-child{margin-top:.15rem}.study-pdf-hi{color:inherit;-webkit-box-decoration-break:clone;box-decoration-break:clone;background:#facc15b8;border-radius:.15em;margin:0 -.04em;padding:.08em .12em;box-shadow:inset 0 -.08em #ca8a0459}.study-pdf-omit{display:none!important}.study-pdf-original-fallback{flex-direction:column;flex:1;min-height:0;display:flex}.study-pdf-original-fallback__viewer{min-height:0;box-shadow:none;border:none;flex:1}.pdf-page-preview{margin:1rem 0 .25rem;padding:0}.pdf-page-preview__stack{flex-direction:column;gap:.85rem;display:flex}.pdf-page-preview__img,.pdf-page-preview__canvas{border-radius:var(--radius-sm,8px);border:1px solid var(--line);background:#fff;width:auto;max-width:100%;height:auto;margin:0 auto;display:block;box-shadow:0 6px 18px #1625320f}.study-pdf-page__figure{margin-top:1.15rem}.study-pdf-page--preview-only .pdf-page-preview{margin-top:.35rem}.study-pdf-col-fallback{margin-top:.5rem}.study-pdf-col-fallback__hint{margin:0 0 .65rem;font-size:.82rem;line-height:1.45}.study-pdf-col-fallback__viewer{border:1px solid var(--line);border-radius:var(--radius-sm,8px);background:#fff;min-height:70vh;overflow:hidden}.flash-stories{z-index:80;background:#0c18208c;justify-content:center;align-items:stretch;display:flex;position:fixed;top:0;right:0;bottom:0;left:0}.flash-story{width:min(440px,100%);height:100%;color:var(--ink);flex-direction:column;margin:0 auto;animation:.35s both flash-story-in;display:flex;position:relative;overflow:hidden}@keyframes flash-story-in{0%{opacity:0;transform:translateY(12px)scale(.985)}to{opacity:1;transform:none}}.flash-story--a{background:radial-gradient(120% 80% at 10% 0,#14837a38,#0000 55%),linear-gradient(165deg,#f7fbfa,#e8f4f2 48%,#dceeea)}.flash-story--b{background:radial-gradient(100% 70% at 90% 10%,#9a7b4f2e,#0000 50%),linear-gradient(165deg,#fffaf3,#f4ebe0 55%,#ebe0d2)}.flash-story--c{background:radial-gradient(90% 60% at 20% 100%,#16253214,#0000 55%),linear-gradient(165deg,#f4f7fa,#e7eef4,#dce6ef)}.flash-story--d{background:radial-gradient(110% 70% at 80% 0,#0b5a5429,#0000 50%),linear-gradient(165deg,#f3faf8,#e4f0ec 52%,#d5e8e2)}.flash-story__progress{gap:4px;padding:.65rem .75rem 0;display:flex}.flash-story__seg{background:#16253224;border-radius:99px;flex:1;height:3px;overflow:hidden}.flash-story__seg.is-done{background:#1625328c}.flash-story__seg.is-active{background:#162532b3}.flash-story__top{justify-content:space-between;align-items:flex-start;gap:.75rem;padding:.85rem 1rem .25rem;display:flex}.flash-story__book{font-family:var(--font-display);letter-spacing:-.02em;margin:0;font-size:.95rem;font-weight:650}.flash-story__count{color:var(--ink-muted);margin:.15rem 0 0;font-size:.72rem}.flash-story__close{color:var(--ink);cursor:pointer;background:#ffffff8c;border:0;border-radius:999px;padding:.4rem .7rem;font-size:.75rem;font-weight:650}.flash-story__stage{flex:1;justify-content:center;align-items:stretch;min-height:0;padding:1rem 1.25rem .5rem;display:flex;position:relative}.flash-story__hit{cursor:pointer;z-index:1;background:0 0;border:0;width:12%;position:absolute;top:0;bottom:0}.flash-story__hit--prev{left:0}.flash-story__hit--next{right:0}.flash-story__card{z-index:3;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);cursor:pointer;overscroll-behavior:contain;background:#fffcf8c7;border:1px solid #16253214;border-radius:1.25rem;flex-direction:column;align-self:center;width:min(100%,22rem);height:100%;min-height:0;max-height:100%;padding:1.15rem 1.1rem .85rem;animation:.4s cubic-bezier(.22,1,.36,1) both flash-card-in;display:flex;position:relative;overflow:hidden;box-shadow:0 18px 40px #1625321a}.flash-story__card.has-more:after{content:"";pointer-events:none;z-index:2;background:linear-gradient(#fffcf800,#fffcf8eb 70%);height:2.4rem;position:absolute;bottom:2.1rem;left:1.1rem;right:1.1rem}.flash-story__scroll{overscroll-behavior:contain;-webkit-overflow-scrolling:touch;touch-action:pan-y;scrollbar-gutter:stable;flex:auto;min-height:0;max-height:100%;margin-bottom:.15rem;padding-bottom:.85rem;padding-right:.25rem;overflow:hidden auto}.flash-story__scroll::-webkit-scrollbar{width:6px}.flash-story__scroll::-webkit-scrollbar-thumb{background:#16253252;border-radius:99px}.flash-story__hint{z-index:3;color:var(--accent-deep);text-align:center;border-top:1px solid #16253214;flex-shrink:0;margin:0;padding-top:.4rem;font-size:.7rem;font-weight:650;animation:1.6s ease-in-out infinite flash-hint-pulse;position:relative}@keyframes flash-hint-pulse{0%,to{opacity:.7}50%{opacity:1}}@keyframes flash-card-in{0%{opacity:0;transform:translateY(16px)scale(.96)}to{opacity:1;transform:none}}.flash-story__label{letter-spacing:.08em;text-transform:uppercase;color:var(--accent-deep);margin:0 0 .65rem;font-size:.68rem;font-weight:700}.flash-story__front{font-family:var(--font-display);letter-spacing:-.02em;margin:0;font-size:clamp(1.35rem,4.5vw,1.75rem);font-weight:650;line-height:1.25}.flash-story__back{color:var(--ink-muted);margin:1rem 0 0;font-size:.95rem;line-height:1.5}.flash-story__card.is-flipped .flash-story__back{color:var(--ink);font-weight:500}.flash-story__empty{text-align:center;color:var(--ink-muted);flex:1;place-items:center;padding:2rem;display:grid}.flash-story__bar{padding:.85rem 1rem calc(.85rem + env(safe-area-inset-bottom,0px));background:linear-gradient(#0000,#ffffff59 30%);justify-content:space-between;align-items:center;gap:.75rem;display:flex}.flash-story__auto{color:var(--ink-muted);cursor:pointer;align-items:center;gap:.4rem;font-size:.78rem;font-weight:600;display:inline-flex}.flash-story__tts{align-items:center;gap:.35rem;display:flex}@media(min-width:520px){.flash-stories{padding:1.25rem}.flash-story{border-radius:1.5rem;align-self:center;height:min(860px,100%);box-shadow:0 24px 60px #0c182047}}.studio-panel{border-radius:var(--radius);border:1px solid var(--line);background:var(--surface-solid)}@supports (color:color-mix(in lab,red,red)){.studio-panel{background:color-mix(in srgb,var(--surface-solid) 90%,var(--accent-soft))}}.studio-panel{box-shadow:var(--shadow);overflow:hidden}.studio-panel__toggle{text-align:left;cursor:pointer;background:0 0;border:none;justify-content:space-between;align-items:flex-start;gap:.75rem;width:100%;padding:.85rem 1rem;display:flex}.studio-panel__toggle:hover{background:#e4f3f173}.studio-panel__title{font-family:var(--font-display);letter-spacing:-.02em;color:var(--ink);margin:0;font-size:1.05rem;font-weight:650}.studio-panel__chev{color:var(--accent-deep);flex-shrink:0;margin-top:.2rem;font-size:.72rem;font-weight:650}.studio-panel__body{border-top:1px solid var(--line);flex-direction:column;gap:.85rem;padding:.85rem 1rem 1rem;display:flex}.studio-block__label{letter-spacing:.1em;text-transform:uppercase;color:var(--accent-deep);margin:0 0 .35rem;font-size:.62rem;font-weight:700}.studio-block__row{justify-content:space-between;align-items:center;gap:.5rem;margin-bottom:.35rem;display:flex}.studio-block__text{color:var(--ink);margin:0;font-size:.9rem;line-height:1.55}.studio-terms{flex-direction:column;gap:.55rem;margin:0;padding:0;list-style:none;display:flex}.studio-terms li{border-radius:var(--radius-sm);border:1px solid var(--line);background:#ffffff8c;flex-direction:column;gap:.15rem;padding:.45rem .55rem;display:flex}.studio-terms__term{color:var(--accent-deep);font-size:.85rem;font-weight:700}.studio-terms__gloss{color:var(--ink-muted);font-size:.8rem;line-height:1.45}.studio-list{color:var(--ink);flex-direction:column;gap:.4rem;margin:0;padding-left:1.15rem;font-size:.86rem;line-height:1.45;display:flex}.studio-list--plain{padding-left:0;list-style:none}.studio-list--plain li{border-radius:var(--radius-sm);background:#ffffff73;border:1px solid #0000;padding:.4rem .55rem}.audio-overview__actions{flex-wrap:wrap;gap:.45rem;display:flex}.audio-overview__script{flex-direction:column;gap:.55rem;max-height:18rem;margin:0;padding:0;list-style:none;display:flex;overflow:auto}.audio-overview__turn{border-radius:var(--radius-sm);border:1px solid var(--line);background:#ffffff80;padding:.55rem .65rem;transition:border-color .18s,background .18s}.audio-overview__turn p{margin:.25rem 0 0;font-size:.84rem;line-height:1.5}.audio-overview__turn.is-active{background:var(--accent-soft);border-color:#0f766e59}.audio-overview__turn.host-b{margin-left:.65rem}.audio-overview__host{letter-spacing:.06em;text-transform:uppercase;color:var(--accent-deep);font-size:.68rem;font-weight:700}.audio-overview__error{color:var(--danger,#a33d3d);margin:.35rem 0 0}.audio-overview__now{margin:0}.pdf-ai-panel__sources{border-top:1px solid var(--line);margin-top:.85rem;padding-top:.75rem}.pdf-ai-panel__sources ul{flex-direction:column;gap:.4rem;margin:0;padding:0;list-style:none;display:flex}.pdf-ai-panel__source{text-align:left;border-radius:var(--radius-sm);border:1px solid var(--line);cursor:pointer;background:#e4f3f166;flex-direction:column;align-items:flex-start;gap:.2rem;width:100%;padding:.45rem .55rem;transition:background .14s,border-color .14s;display:flex}.pdf-ai-panel__source:hover{background:var(--accent-soft);border-color:#0f766e47}.pdf-ai-panel__source-page{color:var(--accent-deep);font-size:.68rem;font-weight:700}.pdf-ai-panel__source-ex{color:var(--ink-muted);font-size:.78rem;line-height:1.4}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-space-y-reverse{syntax:"*";inherits:false;initial-value:0}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-leading{syntax:"*";inherits:false}@property --tw-font-weight{syntax:"*";inherits:false}@property --tw-tracking{syntax:"*";inherits:false}@property --tw-ordinal{syntax:"*";inherits:false}@property --tw-slashed-zero{syntax:"*";inherits:false}@property --tw-numeric-figure{syntax:"*";inherits:false}@property --tw-numeric-spacing{syntax:"*";inherits:false}@property --tw-numeric-fraction{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-duration{syntax:"*";inherits:false}@property --tw-ease{syntax:"*";inherits:false}
