*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:auto}html,body,#root{min-height:100%;min-height:100dvh;margin:0;overflow-x:hidden;overflow-y:auto}body{font-family:var(--font-ui, "DM Sans"),system-ui,-apple-system,BlinkMacSystemFont,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;background-color:var(--cream-page);color:var(--text-on-creme)}*{scrollbar-width:none;-ms-overflow-style:none}*::-webkit-scrollbar{display:none;width:0;height:0}@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2) format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff) format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff) format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff) format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2) format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff) format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2) format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff) format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2) format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff) format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2) format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff) format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2) format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff) format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2) format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff) format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff) format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff) format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff) format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2) format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff) format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2) format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff) format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2) format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff) format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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) format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff) format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2) format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff) format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2) format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff) format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;position:relative;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.17.0"}.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>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .smash{display:inline;line-height:0}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}.toast-stack{position:fixed;left:50%;bottom:calc(28px + env(safe-area-inset-bottom,0px));transform:translate(-50%);z-index:10000;display:flex;flex-direction:column;gap:10px;align-items:center;pointer-events:none}.toast{pointer-events:auto;display:inline-flex;align-items:center;gap:14px;max-width:min(540px,calc(100vw - 32px));padding:11px 14px 11px 18px;border-radius:14px;border:1px solid rgba(45,37,32,.16);background:#261e18f5;color:#fdf6ec;font-family:var(--font);font-size:13.5px;font-weight:500;letter-spacing:.005em;box-shadow:0 12px 36px #140e0852,0 1px #ffffff0f inset;animation:toast-in .32s cubic-bezier(.22,1,.36,1) both}.toast--success{background:linear-gradient(180deg,#2d2520,#1f1813)}.toast--warn{background:linear-gradient(180deg,#6a2e1b,#4a1f12)}.toast__msg{flex:1;min-width:0;line-height:1.4}.toast__action{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:none;background:transparent;color:#f4c089;font:inherit;font-weight:700;font-size:13px;letter-spacing:.04em;text-transform:uppercase;padding:4px 8px;border-radius:8px;cursor:pointer;transition:background-color .16s ease,color .16s ease}.toast__action:hover{background:#f4c08929;color:#ffd8a8}.toast__close{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:none;background:transparent;color:#fdf6eca6;width:24px;height:24px;display:grid;place-items:center;border-radius:999px;font-size:18px;line-height:1;cursor:pointer;transition:background-color .16s ease,color .16s ease}.toast__close:hover{background:#fdf6ec1f;color:#fdf6ec}@keyframes toast-in{0%{opacity:0;transform:translateY(10px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}@media(prefers-reduced-motion:reduce){.toast{animation:none}}.note-study{margin:28px 0 0;padding:24px 22px 22px;border-radius:18px;border:1px solid var(--sb-border, rgba(45, 37, 32, .11));background:var(--sb-panel, #ede7df)}.note-study--empty{text-align:center;padding:32px 24px}.note-study__empty-title{margin:0;font-size:16px;font-weight:700;color:var(--sb-text, var(--brown-title))}.note-study__empty-sub{margin:8px 0 0;font-size:14px;color:var(--sb-text-secondary, var(--ref-muted))}.note-study__head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:18px}.note-study__kicker{margin:0;font-size:11px;font-weight:700;letter-spacing:.32em;text-transform:uppercase;color:var(--sb-accent, var(--rust-accent))}.note-study__title{margin:6px 0 0;font-family:var(--font-hero, Georgia, serif);font-size:1.35rem;font-weight:500;color:var(--sb-text, var(--brown-title))}.note-study__sub{margin:8px 0 0;font-size:14px;color:var(--sb-text-secondary, var(--ref-muted))}.note-study__progress{margin:6px 0 0;font-size:13px;color:var(--sb-text-secondary, var(--ref-muted))}.note-study__tools{display:flex;align-items:center;gap:10px;flex-shrink:0}.note-study__score{font-size:13px;color:var(--sb-text-secondary, var(--ref-muted))}.note-study__score strong{color:var(--sb-accent-deep, var(--rust-accent-deep))}.note-study__btn{height:38px;padding:0 14px;border-radius:12px;border:1px solid var(--sb-border, rgba(45, 37, 32, .11));background:var(--sb-canvas, var(--cream-page));font:inherit;font-size:13px;font-weight:600;color:var(--sb-text, var(--brown-title));cursor:pointer;transition:background-color .18s ease,border-color .18s ease,color .18s ease}.note-study__btn:hover:not(:disabled){border-color:rgba(var(--sb-rgb-accent, 160, 80, 52),.32);background:var(--sb-hover-surface, rgba(160, 80, 52, .085));color:var(--sb-accent-deep, var(--rust-accent-deep))}.note-study__btn:disabled{opacity:.45;cursor:not-allowed}.note-study__btn--primary{background:var(--sb-accent, var(--rust-accent));border-color:transparent;color:#fff}.note-study__btn--primary:hover:not(:disabled){background:var(--sb-accent-deep, var(--rust-accent-deep));color:#fff}.note-study__btn--small{height:32px;padding:0 12px;font-size:12px}.note-study__icon-btn{width:32px;height:32px;border-radius:999px;border:1px solid var(--sb-border, rgba(45, 37, 32, .11));background:var(--sb-canvas, var(--cream-page));font-size:14px;color:var(--sb-text-secondary, var(--ref-muted));cursor:pointer}.note-study__icon-btn--on{color:var(--sb-accent, var(--rust-accent));border-color:rgba(var(--sb-rgb-accent, 160, 80, 52),.35)}.note-study__card{width:100%;min-height:220px;padding:0;border:none;background:transparent;cursor:pointer;perspective:1200px}.note-study__card-inner{display:block;position:relative;width:100%;min-height:220px;transform-style:preserve-3d;transition:transform .42s cubic-bezier(.33,1,.68,1)}.note-study__card--flipped .note-study__card-inner{transform:rotateY(180deg)}.note-study__face{position:absolute;top:0;right:0;bottom:0;left:0;backface-visibility:hidden;display:flex;flex-direction:column;padding:22px 24px;border-radius:16px;border:1px solid var(--sb-border, rgba(45, 37, 32, .11));background:var(--sb-canvas, var(--cream-page));text-align:left}.note-study__face--back{transform:rotateY(180deg);background:#f9f1e48c}.note-study__face-label{font-size:10px;font-weight:700;letter-spacing:.28em;text-transform:uppercase;color:var(--sb-accent, var(--rust-accent));margin-bottom:14px}.note-study__face-body{font-size:16px;line-height:1.55;color:var(--sb-text, var(--brown-title))}.note-study__controls,.note-study__rate-row,.note-study__actions,.note-study__nav{display:flex;align-items:center;justify-content:center;gap:12px;margin-top:18px}.note-study__rate-row{flex-direction:column}.note-study__rate-prompt{margin:0;font-size:13px;color:var(--sb-text-secondary, var(--ref-muted))}.note-study__rate-buttons{display:flex;gap:10px;width:100%}.note-study__rate-btn{flex:1;height:44px;border-radius:12px;border:1px solid var(--sb-border, rgba(45, 37, 32, .11));background:var(--sb-canvas, var(--cream-page));font:inherit;font-size:13px;font-weight:600;cursor:pointer}.note-study__rate-btn--again:hover{border-color:#c45;color:#a33}.note-study__rate-btn--good:hover{border-color:var(--sb-accent-muted, var(--rust-accent-soft));color:var(--sb-accent, var(--rust-accent))}.note-study__rate-btn--easy:hover{border-color:#6a8;color:#486}.note-study__quiz-card{padding:4px 0 0}.note-study__q-marks{margin:0 0 8px;font-size:11px;font-weight:700;letter-spacing:.24em;text-transform:uppercase;color:var(--sb-accent, var(--rust-accent))}.note-study__q-text{margin:0 0 16px;font-size:17px;line-height:1.5;font-weight:600;color:var(--sb-text, var(--brown-title))}.note-study__answer-label{display:block;margin:0 0 8px;font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--sb-text-label, rgba(138, 130, 120, .92))}.note-study__answer-input{width:100%;box-sizing:border-box;padding:14px 16px;border-radius:14px;border:1px solid var(--sb-border, rgba(45, 37, 32, .11));background:var(--sb-canvas, var(--cream-page));font:inherit;font-size:15px;line-height:1.5;color:var(--sb-text, var(--brown-title));resize:vertical;min-height:120px}.note-study__answer-input:focus{outline:none;border-color:rgba(var(--sb-rgb-accent, 160, 80, 52),.4);box-shadow:0 0 0 3px rgba(var(--sb-rgb-accent, 160, 80, 52),.14)}.note-study__ms{margin-top:18px;padding-top:18px;border-top:1px solid var(--sb-border, rgba(45, 37, 32, .11))}.note-study__ms-head{margin:0 0 12px;font-size:12px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--sb-accent, var(--rust-accent))}.note-study__ms-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.note-study__ms-row{display:flex;align-items:flex-start;gap:10px;padding:10px 12px;border-radius:12px;border:1px solid var(--sb-border, rgba(45, 37, 32, .11));background:var(--sb-canvas, var(--cream-page));font-size:14px;line-height:1.45;cursor:pointer}.note-study__ms-row--checked{border-color:rgba(var(--sb-rgb-accent, 160, 80, 52),.35);background:#f9f1e4b3}.note-study__ms-mark{margin-left:auto;font-size:11px;font-weight:700;color:var(--sb-accent, var(--rust-accent))}.note-study__ms-total{margin:12px 0 0;font-size:14px;color:var(--sb-text-secondary, var(--ref-muted))}.note-study__nav-progress{font-size:13px;color:var(--sb-text-secondary, var(--ref-muted))}.note-study__summary{margin-top:20px;padding-top:18px;border-top:1px solid var(--sb-border, rgba(45, 37, 32, .11));text-align:center}.note-study__summary-title{margin:0 0 14px;font-size:16px;color:var(--sb-text, var(--brown-title))}.note-study__bold{font-weight:700}.note-study__bullet,.note-study__step{display:block;margin-top:4px}.fc-shell__decks{width:100%;height:100%;padding:var(--sb-pad-y) var(--sb-pad-x);display:flex;flex-direction:column;overflow:hidden;border-right:1px solid var(--sb-divider-col);background:var(--sb-bg)}.fc-shell__decks-head{flex-shrink:0}.fc-shell__decks-search-row{display:flex;align-items:center;gap:10px}.fc-shell__decks-search{flex:1;position:relative;display:flex;align-items:center}.fc-shell__decks-search-icon{position:absolute;left:12px;display:flex;color:var(--sb-text-secondary);pointer-events:none}.fc-shell__decks-search input{width:100%;height:var(--sb-control-h);padding:0 12px 0 38px;border-radius:var(--sb-radius);border:1px solid var(--sb-border);background:var(--sb-panel);font:inherit;font-size:14px;color:var(--sb-text);outline:none}.fc-shell__decks-search input::placeholder{color:var(--sb-text-faint)}.fc-shell__decks-search input:focus{border-color:rgba(var(--sb-rgb-accent),.35);box-shadow:0 0 0 3px rgba(var(--sb-rgb-accent),.12)}.fc-shell__decks-filter{flex-shrink:0;width:var(--sb-control-h);height:var(--sb-control-h);display:grid;place-items:center;border-radius:var(--sb-radius);border:1px solid var(--sb-border);background:var(--sb-panel);color:var(--sb-text-secondary);cursor:pointer}.fc-shell__decks-filter:hover{border-color:rgba(var(--sb-rgb-accent),.28);color:var(--sb-accent)}.fc-shell__decks-section-head{display:flex;align-items:center;justify-content:space-between;margin:var(--sb-sidebar-gap) 0 12px}.fc-shell__decks-section-title{margin:0;font-size:var(--sb-label-size);font-weight:700;letter-spacing:var(--sb-label-tracking);text-transform:uppercase;color:var(--sb-text-label)}.fc-shell__decks-new{display:inline-flex;align-items:center;gap:6px;padding:0;border:none;background:transparent;font:inherit;font-size:13px;font-weight:600;color:var(--sb-accent);cursor:pointer}.fc-shell__decks-new:hover{color:var(--sb-accent-deep)}.fc-shell__decks-body{flex:1;min-height:0;overflow-y:auto}.fc-shell__deck-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:var(--sb-gap-list)}.fc-shell__deck-btn{width:100%;min-height:var(--sb-control-h);display:flex;align-items:center;gap:12px;padding:0 12px;border-radius:var(--sb-radius);border:1px solid transparent;background:transparent;font:inherit;text-align:left;cursor:pointer;color:var(--sb-text);transition:background-color .18s ease,border-color .18s ease}.fc-shell__deck-btn:hover{background:var(--sb-hover-surface)}.fc-shell__deck-btn--active{background:rgba(var(--sb-rgb-accent),.1);border-color:rgba(var(--sb-rgb-accent),.14)}.fc-shell__deck-icon{flex-shrink:0;width:28px;height:28px;display:grid;place-items:center;color:var(--sb-text-secondary)}.fc-shell__deck-btn--active .fc-shell__deck-icon{color:var(--sb-accent)}.fc-shell__deck-meta{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.fc-shell__deck-name{font-size:15px;font-weight:600;line-height:1.25;color:var(--sb-text)}.fc-shell__deck-count{font-size:13px;color:var(--sb-text-secondary)}.fc-shell__deck-dot{flex-shrink:0;width:8px;height:8px;border-radius:999px;background:var(--sb-accent);opacity:0}.fc-shell__deck-btn--active .fc-shell__deck-dot{opacity:1}.fc-shell__recent{margin-top:var(--sb-sidebar-gap)}.fc-shell__recent-list{list-style:none;margin:8px 0 0;padding:0;display:flex;flex-direction:column;gap:var(--sb-gap-list)}.fc-shell__recent-row{width:100%;min-height:var(--sb-control-h);display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 12px;border:none;border-radius:var(--sb-radius);background:transparent;font:inherit;font-size:14px;font-weight:500;color:var(--sb-text);cursor:pointer;text-align:left}.fc-shell__recent-row:hover{background:var(--sb-hover-surface)}.fc-shell__recent-time{font-size:12px;color:var(--sb-text-faint);flex-shrink:0}.fc-shell__decks-foot{flex-shrink:0;margin-top:var(--sb-sidebar-gap);padding-top:var(--sb-sidebar-gap);border-top:1px solid var(--sb-border)}.fc-shell__browse-all{width:100%;height:var(--sb-control-h);display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--sb-radius);border:1px solid var(--sb-border);background:var(--sb-panel);font:inherit;font-size:14px;font-weight:600;color:var(--sb-text);cursor:pointer}.fc-shell__browse-all:hover{border-color:rgba(var(--sb-rgb-accent),.28);color:var(--sb-accent)}.fc-shell__study{height:100%;display:flex;flex-direction:column;overflow:hidden;background:var(--sb-bg)}.fc-shell__study-scroll{flex:1;min-height:0;overflow-y:auto;padding:var(--sb-pad-y) var(--sb-pad-x) 32px;display:flex;flex-direction:column}.fc-shell__study-top{flex-shrink:0}.fc-shell__crumbs{margin:0 0 12px;font-size:clamp(.72rem,.55rem + .55vw,.8125rem);font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:rgba(var(--sb-rgb-ink),.72);line-height:1.45}.fc-shell__crumb-sep{margin:0 6px;opacity:.5}.fc-shell__crumb--current{color:var(--sb-accent);font-weight:700}.fc-shell__study-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;min-height:var(--sb-control-h);margin-bottom:var(--sb-sidebar-gap)}.fc-shell__study-title{margin:0;font-family:var(--font-hero, "Cormorant Garamond", Georgia, serif);font-size:clamp(2.25rem,calc(1.5rem + 2.5vw),3.25rem);font-weight:500;letter-spacing:-.01em;line-height:1.05;color:var(--sb-text)}.fc-shell__study-settings{flex-shrink:0;height:var(--sb-control-h);padding:0 16px;border-radius:var(--sb-radius);border:1px solid var(--sb-border);background:var(--sb-panel);font:inherit;font-size:13px;font-weight:600;color:var(--sb-text);cursor:pointer;display:inline-flex;align-items:center;gap:8px}.fc-shell__study-settings:hover{border-color:rgba(var(--sb-rgb-accent),.28);color:var(--sb-accent)}.fc-shell__tabs-row{display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid var(--sb-border);margin-bottom:28px}.fc-shell__tabs{display:flex;gap:28px}.fc-shell__tab{position:relative;padding:0 0 14px;border:none;background:transparent;font:inherit;font-size:14px;font-weight:600;color:var(--sb-text-secondary);cursor:pointer}.fc-shell__tab--active{color:var(--sb-accent)}.fc-shell__tab--active:after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--sb-accent);border-radius:2px 2px 0 0}.fc-shell__tab-progress{display:flex;align-items:center;gap:10px;flex-shrink:0}.fc-shell__tab-progress-text{font-size:13px;font-weight:600;color:var(--sb-text-secondary);white-space:nowrap}.fc-shell__tab-progress-bar{width:72px;height:4px;border-radius:999px;background:var(--sb-progress-track);overflow:hidden}.fc-shell__tab-progress-fill{display:block;height:100%;border-radius:inherit;background:var(--sb-accent);transition:width .25s ease}.fc-shell__stage{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:320px;padding-bottom:24px}.fc-shell__card-wrap{width:100%;max-width:720px;display:flex;flex-direction:column;align-items:center;gap:16px}.fc-shell__card{width:100%;min-height:clamp(280px,38vh,380px);margin:0;padding:0;border:none;background:transparent;cursor:pointer;perspective:1200px}.fc-shell__card-inner{position:relative;display:block;width:100%;min-height:inherit;transform-style:preserve-3d;transition:transform .5s cubic-bezier(.22,1,.36,1)}.fc-shell__card--flipped .fc-shell__card-inner{transform:rotateY(180deg)}.fc-shell__face{position:absolute;top:0;right:0;bottom:0;left:0;backface-visibility:hidden;display:flex;flex-direction:column;padding:28px 32px 24px;border-radius:20px;background:var(--paper-panel);border:1px solid rgba(var(--sb-rgb-ink),.08);box-shadow:0 8px 32px #3028220f}.fc-shell__face--back{transform:rotateY(180deg);background:var(--paper-panel)}.fc-shell__face-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}.fc-shell__face-label{display:inline-flex;padding:5px 12px;border-radius:8px;background:rgba(var(--sb-rgb-accent),.1);font-size:11px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--sb-accent)}.fc-shell__face-label--back{background:var(--sb-accent);color:#fff}.fc-shell__face-tools{display:flex;align-items:center;gap:6px}.fc-shell__face-icon{width:34px;height:34px;display:grid;place-items:center;border:none;border-radius:10px;background:transparent;color:var(--sb-text-secondary);cursor:pointer}.fc-shell__face-icon:hover{background:rgba(var(--sb-rgb-accent),.08);color:var(--sb-accent)}.fc-shell__face-icon--on{color:var(--sb-accent)}.fc-shell__face-body{flex:1;display:flex;align-items:center;justify-content:center;text-align:center;font-family:var(--font-hero, "Cormorant Garamond", Georgia, serif);font-size:clamp(1.35rem,calc(1rem + 1.2vw),1.85rem);font-weight:500;line-height:1.35;color:var(--sb-text);padding:0 12px}.fc-shell__face-body--back{font-style:normal;font-size:clamp(1.1rem,calc(.9rem + .8vw),1.45rem);font-family:var(--font),system-ui,sans-serif;font-weight:400;line-height:1.55}.fc-shell__reveal-hint{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--sb-text-faint)}.fc-shell__nav-row{width:100%;max-width:720px;display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:auto;padding-top:20px}.fc-shell__nav-btn{display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 18px;border-radius:12px;border:1px solid var(--sb-border);background:var(--sb-panel);font:inherit;font-size:14px;font-weight:600;color:var(--sb-text);cursor:pointer}.fc-shell__nav-btn:hover:not(:disabled){border-color:rgba(var(--sb-rgb-accent),.28);color:var(--sb-accent)}.fc-shell__nav-btn:disabled{opacity:.4;cursor:not-allowed}.fc-shell__nav-count{font-size:14px;font-weight:600;color:var(--sb-text-secondary)}.fc-shell__empty-stage{text-align:center;color:var(--sb-text-secondary);padding:48px 24px}.fc-shell__empty-stage-title{margin:0;font-family:var(--font-hero, Georgia, serif);font-size:1.75rem;color:var(--sb-text)}.fc-shell__empty-stage-sub{margin:10px 0 0;font-size:15px}.fc-shell__rate-row{width:100%;max-width:720px;margin-top:20px;display:flex;flex-direction:column;align-items:center;gap:12px}.fc-shell__rate-prompt{margin:0;font-size:13px;color:var(--sb-text-secondary)}.fc-shell__rate-buttons{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;width:100%}.fc-shell__rate-btn{height:44px;border-radius:12px;border:1px solid var(--sb-border);background:var(--sb-panel);font:inherit;font-size:13px;font-weight:600;cursor:pointer}.fc-shell__rate-btn:hover{border-color:rgba(var(--sb-rgb-accent),.28);color:var(--sb-accent)}.fc-shell__bold{font-weight:700}@media(max-width:1279px){.fc-shell__decks{width:100%;max-height:min(38dvh,420px);border-right:none;border-bottom:1px solid var(--sb-divider-col)}}.error-boundary{position:fixed;top:0;right:0;bottom:0;left:0;z-index:9999;display:grid;place-items:center;padding:clamp(16px,4vw,32px);background:var(--cream-page);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.error-boundary__card{max-width:460px;width:100%;padding:28px 28px 24px;border-radius:20px;border:1px solid rgba(160,80,52,.32);background:var(--paper-panel);box-shadow:0 20px 48px #3028221f;color:#2d2520}.error-boundary__kicker{margin:0;font-family:var(--font, sans-serif);font-size:11px;font-weight:700;letter-spacing:.32em;text-transform:uppercase;color:#a05034}.error-boundary__title{margin:8px 0 12px;font-family:var(--font-hero, Georgia, serif);font-size:28px;font-weight:400;letter-spacing:-.01em;line-height:1.15}.error-boundary__body{margin:0 0 18px;font-family:var(--font, sans-serif);font-size:14.5px;line-height:1.55;color:#2d2520bd}.error-boundary__detail{margin:0 0 18px;padding:10px 12px;border-radius:10px;background:#2d25200d;font-family:ui-monospace,SF Mono,Menlo,monospace;font-size:12px;line-height:1.5;color:#2d2520bf;max-height:140px;overflow:auto;white-space:pre-wrap}.error-boundary__actions{display:flex;gap:10px;flex-wrap:wrap}.error-boundary__btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid #864428;background:#a05034;color:#fefdfb;font:inherit;font-family:var(--font);font-size:13.5px;font-weight:600;letter-spacing:.01em;padding:10px 18px;border-radius:12px;cursor:pointer;transition:filter .16s ease,background-color .16s ease,color .16s ease}.error-boundary__btn:hover{filter:brightness(1.05)}.error-boundary__btn--ghost{background:transparent;color:#2d2520;border-color:#2d252033}.error-boundary__btn--ghost:hover{background:#2d25200d}@keyframes subject-shell-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@media(prefers-reduced-motion:reduce){.subject-shell{animation:none!important}.subject-shell *{transition-duration:.01ms!important}}.subject-shell{--sb-col-sidebar: 280px;--sb-col-mid: 400px;--sb-shell-inset: 0px;--sb-rgb-accent: 184, 107, 82;--sb-rgb-ink: 45, 37, 32;--sb-shell-outline: rgba(var(--sb-rgb-accent), .24);--sb-divider-col: rgba(var(--sb-rgb-accent), .18);--sb-canvas: var(--cream-page);--sb-bg: var(--cream-page);--sb-panel: var(--paper-panel);--sb-panel-2: var(--cream-warm);--sb-accent: var(--rust-accent);--sb-accent-muted: var(--rust-accent-soft);--sb-accent-deep: var(--rust-accent-deep);--sb-text: var(--brown-title);--sb-text-secondary: var(--ref-muted);--sb-text-label: rgba(138, 130, 120, .92);--sb-text-faint: rgba(92, 83, 74, .55);--sb-border: rgba(var(--sb-rgb-ink), .11);--sb-nav-active: var(--cream-warm);--sb-progress-track: var(--segment-track);--sb-note-active: var(--cream-warm);--sb-tag-pill: var(--paper-panel);--sb-section-mid: rgba(var(--sb-rgb-accent), .32);--sb-body: var(--brown-title);--sb-interactive-duration: .2s;--sb-interactive-ease: cubic-bezier(.33, 1, .68, 1);--sb-sidebar-gap: 24px;--sb-pad-x: 24px;--sb-pad-y: 28px;--sb-control-h: 44px;--sb-radius: 12px;--sb-radius-lg: 14px;--sb-gap-list: 8px;--sb-label-size: 11px;--sb-label-tracking: .24em;--sb-hover-surface: rgba(var(--sb-rgb-accent), .085);--sb-pressed-surface: rgba(var(--sb-rgb-accent), .14);--sb-strong-hover-surface: rgba(var(--sb-rgb-accent), .11);--sb-focus-ring: 0 0 0 3px rgba(var(--sb-rgb-accent), .28);position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;box-sizing:border-box;width:100vw;height:100vh;height:100dvh;margin:0;padding:0;overflow:hidden;overscroll-behavior:none;background-color:var(--sb-canvas);color:var(--sb-text);font-family:var(--font),system-ui,sans-serif;font-size:16px;line-height:1.5;animation:subject-shell-in .42s var(--ease-out-soft) both;display:grid;grid-template-rows:auto minmax(0,1fr);grid-template-columns:minmax(0,1fr);row-gap:8px}.subject-shell__app-bar{flex-shrink:0;display:flex;align-items:center;gap:1rem;padding:calc(clamp(1rem,2.5vh,1.4rem) + env(safe-area-inset-top,0px)) clamp(1.45rem,5.5vw,3.75rem) 0;min-height:0;font-family:var(--font),system-ui,sans-serif}.subject-shell__chrome{position:relative;z-index:1;width:100%;height:100%;min-height:0;box-sizing:border-box;display:grid;grid-template-columns:var(--sb-col-sidebar) var(--sb-col-mid) minmax(0,1fr);grid-template-rows:minmax(0,1fr);align-items:stretch;overflow:hidden;border:none;border-radius:0;background:var(--sb-canvas)}.subject-shell__chrome--mode-flashcards{grid-template-columns:var(--sb-col-sidebar) minmax(0,1fr)}.subject-shell__chrome--mode-flashcards .subject-shell__reader{grid-column:2 / 3}.subject-shell__chrome--flashcards{grid-template-columns:var(--sb-col-sidebar) var(--sb-col-mid) minmax(0,1fr)}.subject-shell__reader--flashcards{padding:0;overflow:hidden;background:var(--sb-bg)}.subject-shell__chrome:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;z-index:0;pointer-events:none;opacity:.035;border-radius:inherit;mix-blend-mode:multiply;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='256' height='256'%3E%3Cfilter id='a'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23a)'/%3E%3C/svg%3E");background-size:220px 220px}.subject-shell__chrome>*{position:relative;z-index:1;min-height:0;min-width:0}.subject-shell *,.subject-shell *:before,.subject-shell *:after{box-sizing:border-box}.subject-shell button:focus-visible{outline:none;box-shadow:var(--sb-focus-ring)}.subject-shell button:focus:not(:focus-visible){box-shadow:none}.subject-shell__sidebar{width:280px;height:100%;padding:var(--sb-pad-y) var(--sb-pad-x);position:relative;display:flex;flex-direction:column;overflow:hidden;border-right:1px solid var(--sb-divider-col);background:var(--sb-canvas)}.subject-shell__sidebar-upper{flex:1;min-height:0;display:flex;flex-direction:column;overflow:hidden}.subject-shell__brand{flex-shrink:0}.subject-shell__brand-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin:0 0 var(--sb-sidebar-gap)}.subject-shell__glyph{width:36px;height:36px;display:grid;place-items:center;color:var(--sb-accent);background:none;border:none;padding:0;flex-shrink:0}.subject-shell__glyph svg{width:36px;height:36px}.subject-shell__glyph--morph{animation:none;transform-origin:50% 50%}@keyframes subject-glyph-morph{0%{transform:translate(var(--morph-dx, 0px),var(--morph-dy, 0px)) scale(var(--morph-sx, 1),var(--morph-sy, 1));opacity:.55}60%{opacity:1}to{transform:translate(0) scale(1);opacity:1}}.subject-shell--morph-active{animation:none}@keyframes subject-shell-morph-fade{0%{opacity:0;transform:scale(.985)}to{opacity:1;transform:scale(1)}}@media(prefers-reduced-motion:reduce){.subject-shell__glyph--morph,.subject-shell--morph-active{animation:none!important}}.subject-shell__back-round{width:36px;height:36px;flex-shrink:0;border-radius:var(--sb-radius);border:1px solid var(--sb-border);background:var(--sb-panel-2);display:grid;place-items:center;color:var(--sb-accent);cursor:pointer;padding:0;box-shadow:0 1px 2px rgba(var(--sb-rgb-ink),.05);transition:background-color var(--sb-interactive-duration) var(--sb-interactive-ease),border-color var(--sb-interactive-duration) var(--sb-interactive-ease),color var(--sb-interactive-duration) var(--sb-interactive-ease),box-shadow var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__back-round:hover{background:var(--sb-hover-surface);border-color:var(--sb-accent-muted);color:var(--sb-accent-deep)}.subject-shell__back-round:active{background:var(--sb-pressed-surface);border-color:var(--sb-accent-deep);color:var(--sb-accent-deep)}.subject-shell__title-block{margin:0;width:100%;display:flex;flex-direction:column;gap:12px}.subject-shell__title-block:before{content:"";display:block;width:20px;height:4px;border-radius:3px;background:var(--sb-accent);opacity:.85;margin-bottom:2px}.subject-shell__title{margin:0;width:100%;font-family:var(--font-hero),Georgia,serif;font-size:clamp(2.25rem,2vw + 1.5rem,2.875rem);font-weight:400;line-height:.92;letter-spacing:-.025em;color:var(--sb-text)}.subject-shell__tagline{margin:0;width:100%;font-family:var(--font),sans-serif;font-size:16px;font-weight:500;color:var(--sb-accent);line-height:1.55}.subject-shell__progress-block{margin-top:34px;width:240px;max-width:100%}.subject-shell__progress-label{height:18px;line-height:18px;font-size:14px;font-weight:600;color:var(--sb-text-secondary)}.subject-shell__progress-bar{margin-top:12px;width:236px;max-width:100%;height:8px;border-radius:999px;background:var(--sb-progress-track);overflow:hidden}.subject-shell__progress-fill{display:block;height:100%;border-radius:inherit;background:var(--sb-accent)}.subject-shell__board{margin-top:28px;width:240px;max-width:100%;display:flex;flex-direction:column;gap:8px}.subject-shell__board-label{font-size:10px;font-weight:700;letter-spacing:.32em;text-transform:uppercase;color:var(--sb-text-label)}.subject-shell__board-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;padding:4px;border-radius:12px;border:1px solid var(--sb-border);background:var(--sb-panel)}.subject-shell__board-tab{display:inline-flex;align-items:center;justify-content:center;height:30px;padding:0 6px;border:none;background:transparent;border-radius:8px;font:inherit;font-size:12px;font-weight:600;color:var(--sb-text-secondary);cursor:pointer;transition:background-color .16s ease,color .16s ease}.subject-shell__board-tab:hover:not(.subject-shell__board-tab--active){background:var(--sb-hover-surface);color:var(--sb-accent-deep)}.subject-shell__board-tab--active{background:var(--sb-accent);color:var(--paper-panel);box-shadow:0 1px 2px rgba(var(--sb-rgb-ink),.1)}.subject-shell__board-overlay{margin-top:28px;padding:16px 18px;border-radius:14px;border:1px dashed rgba(var(--sb-rgb-accent),.32);background:rgba(var(--sb-rgb-accent),.05);max-width:900px}.subject-shell__board-overlay-kicker{margin:0 0 6px;font-size:10.5px;font-weight:700;letter-spacing:.28em;text-transform:uppercase;color:var(--sb-accent)}.subject-shell__board-overlay-body{margin:0;font-size:14.5px;line-height:1.55;color:var(--sb-text)}.subject-shell__nav{margin-top:var(--sb-sidebar-gap);width:100%;display:flex;flex-direction:column;gap:var(--sb-gap-list)}.subject-shell__nav-btn{width:100%;height:var(--sb-control-h);padding:0 12px;border-radius:var(--sb-radius);display:flex;align-items:center;gap:14px;border:none;background:transparent;color:var(--sb-text);font:inherit;font-size:15px;font-weight:500;cursor:pointer;text-align:left;transition:background-color var(--sb-interactive-duration) var(--sb-interactive-ease),color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__nav-btn-icon{flex:0 0 18px;width:18px;height:18px;display:flex;align-items:center;justify-content:center}.subject-shell__nav-btn-icon svg{width:18px;height:18px;transition:color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__nav-btn--active{background:var(--sb-nav-active);color:var(--sb-text)}.subject-shell__nav-btn--active .subject-shell__nav-btn-icon svg{color:var(--sb-accent)}.subject-shell__nav-btn--active svg{opacity:1}.subject-shell__nav-btn:hover:not(.subject-shell__nav-btn--active){background:var(--sb-hover-surface);color:var(--sb-accent-deep)}.subject-shell__nav-btn:active:not(.subject-shell__nav-btn--active){background:var(--sb-pressed-surface)}.subject-shell__nav-btn--active:hover{background:var(--sb-strong-hover-surface);color:var(--sb-accent-deep)}.subject-shell__nav-btn--active:active{background:var(--sb-pressed-surface)}.subject-shell__sidebar-lists{margin-top:var(--sb-sidebar-gap);flex:1;min-height:0;overflow:hidden;display:flex;flex-direction:column}.subject-shell__mini-list ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:var(--sb-gap-list)}.subject-shell__mini-list--pinned{margin-top:0;flex-shrink:0}.subject-shell__mini-heading{margin:0 0 12px;height:14px;line-height:14px;font-size:var(--sb-label-size);font-weight:700;letter-spacing:var(--sb-label-tracking);text-transform:uppercase;color:var(--sb-text-label)}.subject-shell__mini-empty{font-size:13px;color:var(--sb-text-secondary);padding:4px 0;line-height:1.35}.subject-shell__mini-row{display:flex;align-items:center;gap:10px;width:100%;height:var(--sb-control-h);min-height:var(--sb-control-h);padding:0 12px;border:none;border-radius:var(--sb-radius);background:transparent;font:inherit;font-size:14px;color:var(--sb-text);cursor:pointer;text-align:left;transition:background-color var(--sb-interactive-duration) var(--sb-interactive-ease),color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__mini-row svg{width:16px;height:16px;flex-shrink:0;color:var(--sb-text-secondary);opacity:.92;transition:color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__mini-row:hover{background:var(--sb-hover-surface);color:var(--sb-accent-deep)}.subject-shell__mini-row:hover svg{color:var(--sb-accent);opacity:1}.subject-shell__mini-row:active{background:var(--sb-pressed-surface)}.subject-shell__mini-text{flex:1;min-width:0;line-height:1.25;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.subject-shell__mini-row--pinned .subject-shell__pin-marker{flex-shrink:0;color:var(--sb-accent);opacity:.7;display:flex}.subject-shell__mini-row--pinned .subject-shell__pin-marker svg{width:14px;height:14px}.subject-shell__sidebar-foot{margin-top:auto;flex-shrink:0;display:flex;flex-direction:column;align-items:stretch;gap:var(--sb-sidebar-gap);width:100%;padding-top:var(--sb-sidebar-gap)}.subject-shell__sidebar-search{position:relative;display:flex;align-items:center;gap:10px;width:100%;height:var(--sb-control-h);padding:0 12px;border-radius:var(--sb-radius);border:1px solid var(--sb-border);background:var(--sb-panel);transition:border-color var(--sb-interactive-duration) var(--sb-interactive-ease),box-shadow var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__sidebar-search:focus-within{border-color:var(--sb-accent-muted);box-shadow:0 0 0 3px rgba(var(--sb-rgb-accent),.12)}.subject-shell__sidebar-search-icon{display:flex;flex-shrink:0;color:var(--sb-text-secondary)}.subject-shell__sidebar-search input{flex:1;min-width:0;height:100%;padding:0;border:none;background:transparent;font:inherit;font-size:15px;font-weight:500;color:var(--sb-text);outline:none}.subject-shell__sidebar-search input::placeholder{color:var(--sb-text-secondary)}.subject-shell__sidebar-search-kbd{display:inline-flex;align-items:center;gap:3px;flex-shrink:0;pointer-events:none}.subject-shell__sidebar-search-kbd kbd{display:inline-grid;place-items:center;min-width:20px;height:20px;padding:0 5px;border-radius:5px;border:1px solid var(--sb-border);background:rgba(var(--sb-rgb-ink),.04);font-family:ui-monospace,SF Mono,Menlo,monospace;font-size:10px;font-weight:600;color:var(--sb-text-secondary)}.subject-shell__settings{margin-top:0;height:var(--sb-control-h);display:flex;align-items:center;gap:10px;padding:0 12px;width:100%;border:none;border-radius:var(--sb-radius);background:transparent;font:inherit;font-size:15px;font-weight:500;color:var(--sb-text-secondary);cursor:pointer;text-align:left;transition:background-color var(--sb-interactive-duration) var(--sb-interactive-ease),color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__settings:hover{color:var(--sb-accent-deep);background:var(--sb-hover-surface)}.subject-shell__settings:hover>svg{color:var(--sb-accent)}.subject-shell__settings:active{background:var(--sb-pressed-surface);color:var(--sb-accent-deep)}.subject-shell__settings:hover .subject-shell__settings-chev{opacity:.65;color:var(--sb-accent-muted)}.subject-shell__settings>svg{width:18px;height:18px;flex-shrink:0;transition:color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__settings-chev{margin-left:auto;display:flex;align-items:center;opacity:.4;transition:opacity var(--sb-interactive-duration) var(--sb-interactive-ease),color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__settings-chev svg{width:16px;height:16px}.subject-shell__topics{width:400px;height:100%;padding:var(--sb-pad-y) var(--sb-pad-x);position:relative;display:flex;flex-direction:column;overflow:hidden;border-right:1px solid var(--sb-divider-col);background:var(--sb-bg)}.subject-shell__topics-intro{position:relative;flex-shrink:0}.subject-shell__topics-intro-sync{visibility:hidden;pointer-events:none;-webkit-user-select:none;user-select:none}.subject-shell__topics-intro-sync .subject-shell__back-round--layout{border-color:transparent;box-shadow:none;background:transparent}.subject-shell__topics-intro-sync .subject-shell__title,.subject-shell__topics-intro-sync .subject-shell__tagline{display:block}.subject-shell__topics-heading{position:absolute;left:0;right:0;bottom:0;margin:0;font-size:var(--sb-label-size);font-weight:700;letter-spacing:var(--sb-label-tracking);text-transform:uppercase;color:var(--sb-text-label);line-height:1}.subject-shell__topics-body{flex:1;display:flex;flex-direction:column;min-height:0;overflow:hidden;margin-top:var(--sb-sidebar-gap)}.subject-shell__topics-foot{flex-shrink:0;margin-top:var(--sb-sidebar-gap);padding-top:var(--sb-sidebar-gap);border-top:1px solid var(--sb-border)}.subject-shell__topics-manage{width:100%;height:var(--sb-control-h);display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--sb-radius);border:1px solid var(--sb-border);background:var(--sb-panel);font:inherit;font-size:14px;font-weight:600;color:var(--sb-text-secondary);cursor:pointer;transition:background-color var(--sb-interactive-duration) var(--sb-interactive-ease),border-color var(--sb-interactive-duration) var(--sb-interactive-ease),color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__topics-manage:hover{border-color:rgba(var(--sb-rgb-accent),.32);color:var(--sb-accent-deep);background:var(--sb-hover-surface)}.subject-shell__topics-manage svg{width:16px;height:16px}.subject-shell__topics-search{display:flex;align-items:center;gap:12px}.subject-shell__topics-search input{width:calc(100% - 64px);height:52px;border-radius:14px;background:var(--sb-panel);border:1px solid var(--sb-border);padding:0 18px;font:inherit;font-size:15px;outline:none;color:var(--sb-text);transition:border-color var(--sb-interactive-duration) var(--sb-interactive-ease),box-shadow var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__topics-search input:hover:not(:focus){border-color:rgba(var(--sb-rgb-accent),.32)}.subject-shell__topics-search input::placeholder{color:var(--sb-text-secondary)}.subject-shell__topics-search input:focus{border-color:var(--sb-accent-muted);box-shadow:var(--sb-focus-ring)}.subject-shell__filter-btn{width:52px;height:52px;flex-shrink:0;border-radius:14px;border:1px solid var(--sb-border);background:var(--sb-panel);display:grid;place-items:center;cursor:pointer;color:var(--sb-text-secondary);transition:background-color var(--sb-interactive-duration) var(--sb-interactive-ease),border-color var(--sb-interactive-duration) var(--sb-interactive-ease),color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__filter-btn:hover{border-color:var(--sb-accent-muted);color:var(--sb-accent);background:var(--sb-hover-surface)}.subject-shell__filter-btn:active{background:var(--sb-pressed-surface);border-color:var(--sb-accent-deep);color:var(--sb-accent-deep)}.subject-shell__filter-btn svg{width:18px;height:18px}.subject-shell__topics-area{margin:34px 0 0;height:16px;line-height:16px;font-size:11px;letter-spacing:.42em;font-weight:600;text-transform:uppercase;color:var(--sb-text-label)}.subject-shell__topics-scroll{flex:1;min-height:0;display:flex;flex-direction:column;gap:0;overflow-x:hidden;overflow-y:auto;-webkit-overflow-scrolling:touch;overscroll-behavior:contain}.subject-shell__accordion{display:flex;flex-direction:column;gap:var(--sb-gap-list);margin-top:0}.subject-shell__acc-item+.subject-shell__acc-item{margin-top:0}.subject-shell__acc-trigger{width:100%;min-height:var(--sb-control-h);height:var(--sb-control-h);padding:0 12px;margin:0;border:none;border-radius:var(--sb-radius);background:transparent;display:flex;flex-direction:row;align-items:center;gap:0;font:inherit;font-size:15px;font-weight:600;color:var(--sb-text);cursor:pointer;text-align:left;transition:background-color var(--sb-interactive-duration) var(--sb-interactive-ease),color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__acc-trigger-top{display:flex;align-items:center;gap:12px;min-height:22px}.subject-shell__acc-trigger-label{flex:1;min-width:0;text-align:left}.subject-shell__topic-progress-track{align-self:stretch;margin-left:28px;height:3px;border-radius:999px;background:var(--sb-progress-track);overflow:hidden}.subject-shell__topic-progress-fill{display:block;height:100%;border-radius:inherit;background:var(--sb-accent)}.subject-shell__acc-trigger:hover{background:var(--sb-hover-surface);color:var(--sb-accent-deep)}.subject-shell__acc-trigger:active{background:var(--sb-pressed-surface)}.subject-shell__acc-trigger:hover .subject-shell__acc-chev-text{color:var(--sb-accent-muted)}.subject-shell__acc-chev-text{width:16px;flex:0 0 16px;text-align:center;font-size:10px;color:var(--sb-text-faint);transition:color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__acc-panel{list-style:none;margin:0;padding:4px 0 0;display:flex;flex-direction:column;gap:var(--sb-gap-list)}.subject-shell__note-pill{width:100%;height:var(--sb-control-h);min-height:var(--sb-control-h);padding:0 12px;border-radius:var(--sb-radius);border:none;background:transparent;display:flex;align-items:center;justify-content:space-between;gap:12px;font:inherit;cursor:pointer;text-align:left;color:var(--sb-text);transition:background-color var(--sb-interactive-duration) var(--sb-interactive-ease),color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__note-pill:hover:not(.subject-shell__note-pill--active){background:var(--sb-hover-surface);color:var(--sb-accent-deep)}.subject-shell__note-pill:active:not(.subject-shell__note-pill--active){background:var(--sb-pressed-surface)}.subject-shell__note-pill:hover:not(.subject-shell__note-pill--active) .subject-shell__note-pill-left>svg{color:var(--sb-accent)}.subject-shell__note-pill--active{background:var(--sb-note-active)}.subject-shell__note-pill--active:hover{background:var(--sb-note-active);box-shadow:inset 0 0 0 1px rgba(var(--sb-rgb-accent),.28);color:var(--sb-accent-deep)}.subject-shell__note-pill--active:hover .subject-shell__note-pill-left>svg{color:var(--sb-accent)}.subject-shell__note-pill--active:active{box-shadow:inset 0 0 0 1px rgba(var(--sb-rgb-accent),.38);background:var(--sb-strong-hover-surface)}.subject-shell__note-pill-left{display:flex;align-items:center;gap:12px;min-width:0;flex:1}.subject-shell__note-pill-left>svg{width:16px;height:16px;flex-shrink:0;color:var(--sb-text-secondary);transition:color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__note-pill-text{font-size:14px;font-weight:500;line-height:1.3;min-width:0}.subject-shell__note-dot{width:8px;height:8px;margin-right:2px;border-radius:999px;background:var(--sb-accent);flex-shrink:0}.subject-shell__topics-scroll>*:first-child{flex:1 1 auto;min-height:0}.subject-shell__placeholder-col{padding:18px 0}.subject-shell__placeholder-title{margin:0;font-family:var(--font-hero),serif;font-size:28px;font-weight:400;color:var(--sb-text)}.subject-shell__placeholder-sub{margin:12px 0 0;font-size:15px;line-height:1.6;color:var(--sb-text-secondary)}.subject-shell__empty{margin:0;padding:18px;font-size:15px;line-height:1.6;color:var(--sb-text-secondary);border-radius:12px;background:var(--sb-panel);border:1px solid var(--sb-border)}.subject-shell__empty code{font-size:.9em}.subject-shell__reader{grid-column:3;min-height:0;overflow:hidden;display:flex;flex-direction:column;background:var(--sb-bg)}.subject-shell__reader-scroll{height:100%;min-height:0;flex:1;overflow-x:hidden;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;padding:var(--sb-pad-y) var(--sb-pad-x) 40px}.subject-shell__reader-scroll--article{position:relative}.subject-shell__article-frame{width:100%;max-width:52rem;padding-bottom:40px}.subject-shell__reader-scroll--idle{display:flex;align-items:center;justify-content:center}.subject-shell__reader-scroll--idle .subject-shell__reader-fill{width:100%;margin:0 auto}.subject-shell__reader-fill{max-width:28rem;padding:0}.subject-shell__reader-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:var(--sb-text-secondary)}.subject-shell__reader-empty-title{margin:0;font-family:var(--font-hero),Georgia,serif;font-size:40px;font-weight:400;color:var(--sb-text)}.subject-shell__reader-empty-sub{margin:12px 0 0;max-width:24rem;font-size:16px;line-height:1.6}.subject-shell__article-top{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;min-height:44px;padding-bottom:4px}.subject-shell__crumbs{display:flex;flex-wrap:wrap;align-items:center;width:auto;max-width:min(100%,34rem);overflow:visible;font-family:var(--font),system-ui,sans-serif;font-size:clamp(.72rem,.55rem + .55vw,.8125rem);font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:rgba(var(--sb-rgb-ink),.72);line-height:1.45;gap:0}.subject-shell__crumb{display:inline;overflow:visible;text-overflow:unset;white-space:normal}.subject-shell__crumb--current{color:var(--sb-accent);font-weight:700}.subject-shell__crumb-sep{color:var(--sb-text-faint);font-weight:500;letter-spacing:.06em}.subject-shell__article-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}.subject-shell__more-wrap{position:relative}.subject-shell__more-menu{position:absolute;right:0;top:calc(100% + 8px);z-index:50;min-width:208px;padding:6px;border-radius:14px;border:1px solid var(--sb-border);background:var(--sb-panel);box-shadow:0 4px 24px rgba(var(--sb-rgb-ink),.08),0 0 1px rgba(var(--sb-rgb-ink),.05)}.subject-shell__more-item{display:block;width:100%;padding:10px 12px;border:none;border-radius:12px;background:transparent;font:inherit;font-size:14px;font-weight:500;color:var(--sb-text);text-align:left;cursor:pointer;transition:background-color var(--sb-interactive-duration) var(--sb-interactive-ease),color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__more-item:hover{background:var(--sb-hover-surface);color:var(--sb-accent-deep)}.subject-shell__more-item:active{background:var(--sb-pressed-surface);color:var(--sb-accent-deep)}.subject-shell__pin-pill{box-sizing:border-box;height:var(--sb-control-h);padding:0 16px;border-radius:var(--sb-radius);border:1px solid var(--sb-border);background:var(--sb-panel);display:inline-flex;align-items:center;gap:8px;font:inherit;font-size:14px;font-weight:600;color:var(--sb-text-secondary);cursor:pointer;transition:border-color var(--sb-interactive-duration) var(--sb-interactive-ease),background-color var(--sb-interactive-duration) var(--sb-interactive-ease),color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__pin-pill svg{width:16px;height:16px;transition:color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__pin-pill:hover{border-color:var(--sb-accent-muted);color:var(--sb-accent);background:var(--sb-hover-surface)}.subject-shell__pin-pill:hover svg{color:var(--sb-accent)}.subject-shell__pin-pill:active{border-color:var(--sb-accent-deep);background:var(--sb-pressed-surface);color:var(--sb-accent-deep)}.subject-shell__pin-pill--on{background:var(--sb-tag-pill);border-color:rgba(var(--sb-rgb-accent),.35);color:var(--sb-accent)}.subject-shell__pin-pill--on svg{color:var(--sb-accent)}.subject-shell__pin-pill--on:hover{border-color:var(--sb-accent-deep);background:var(--sb-hover-surface);color:var(--sb-accent-deep)}.subject-shell__pin-pill--on:active{background:var(--sb-pressed-surface)}.subject-shell__icon-btn{width:var(--sb-control-h);height:var(--sb-control-h);border-radius:var(--sb-radius);border:1px solid var(--sb-border);background:var(--sb-panel);display:grid;place-items:center;cursor:pointer;color:var(--sb-text-secondary);padding:0;transition:border-color var(--sb-interactive-duration) var(--sb-interactive-ease),color var(--sb-interactive-duration) var(--sb-interactive-ease),background-color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__icon-btn:hover{border-color:var(--sb-accent-muted);color:var(--sb-accent);background:var(--sb-hover-surface)}.subject-shell__icon-btn:active{border-color:var(--sb-accent-deep);color:var(--sb-accent-deep);background:var(--sb-pressed-surface)}.subject-shell__icon-btn svg{width:18px;height:18px}.subject-shell__article{margin:0;padding:var(--sb-sidebar-gap) 0 0;max-width:52rem;border:none;background:transparent;border-radius:0;box-shadow:none}.subject-shell__article-kicker{display:flex;flex-wrap:wrap;align-items:center;gap:10px}.subject-shell__category-badge{display:inline-flex;align-items:center;box-sizing:border-box;min-height:32px;padding:0 14px;border-radius:10px;border:1px solid rgba(var(--sb-rgb-accent),.38);background:linear-gradient(180deg,rgba(var(--sb-rgb-accent),.14),rgba(var(--sb-rgb-accent),.08));color:var(--sb-accent);font-size:11px;font-weight:700;font-family:var(--font),sans-serif;letter-spacing:.14em;text-transform:uppercase}.subject-shell__spec-chip{display:inline-flex;align-items:center;box-sizing:border-box;min-height:32px;padding:0 12px;border-radius:999px;border:1px solid var(--sb-border);background:var(--sb-tag-pill);color:var(--sb-text-secondary);font-size:12px;font-weight:700;font-family:var(--font),sans-serif;letter-spacing:.04em}.subject-shell__article-title{margin:20px 0 0;width:100%;max-width:900px;font-family:var(--font-hero),Georgia,serif;font-size:clamp(3.1rem,calc(2.05rem + 3.6vw),6.75rem);font-weight:400;line-height:.9;letter-spacing:-.025em;color:var(--sb-text)}.subject-shell__meta{display:flex;flex-wrap:wrap;align-items:center;gap:24px;margin:18px 0 0;padding:0;border:none;min-height:22px}.subject-shell__meta-item{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:500;line-height:22px;color:var(--sb-text-secondary)}.subject-shell__meta-item svg{width:15px;height:15px;flex-shrink:0;opacity:.65}.subject-shell__rule{display:block;margin:0;padding:0;border:none;width:100%;height:1px;background:var(--sb-border)}.subject-shell__rule--meta{margin-top:34px}.subject-shell__rule--mid{margin-top:38px;background:rgba(var(--sb-rgb-accent),.2)}.subject-shell__md{margin-top:0;padding:0 0 18px}.subject-shell__md .note-reader-modal__simple-md{display:flex;flex-direction:column;gap:0}.subject-shell__md .note-reader-modal__h{margin:34px 0 0;height:24px;line-height:24px;font-family:var(--font),sans-serif;font-size:18px;font-weight:700;color:var(--sb-accent)}.subject-shell__md .note-reader-modal__h:first-child{margin-top:34px}.subject-shell__md .note-reader-modal__p{margin:18px 0 0;font-family:var(--font),sans-serif;font-size:18px;line-height:1.8;max-width:780px;color:var(--sb-body)}.subject-shell__md .note-reader-modal__p:first-of-type{margin-top:18px}.subject-shell__md .note-reader-modal__ul{margin:18px 0;padding-left:1.25rem;display:flex;flex-direction:column;gap:18px;max-width:780px}.subject-shell__md .note-reader-modal__ul li{font-size:18px;line-height:1.7;color:var(--sb-body)}.subject-shell__md .note-reader-modal__bq{margin:0 0 18px;padding:16px 20px;border-left:3px solid var(--sb-accent-muted);background:var(--sb-panel);border-radius:0 12px 12px 0;max-width:780px}.subject-shell__md .note-reader-modal__pre{margin:0 0 18px;border-radius:12px;border:1px solid var(--sb-border);max-width:780px}.subject-shell__md .note-reader-modal__pre code{font-size:15px}.subject-shell__md .note-reader-modal__img-placeholder{border-radius:14px;border:1px solid var(--sb-border)}.subject-shell__md .note-reader-modal__math--block{margin:22px 0;padding:18px 22px;border-radius:12px;background:var(--sb-panel);border:1px solid var(--sb-border);font-size:18px;overflow-x:auto;max-width:780px}.subject-shell__md .note-reader-modal__math--inline{font-size:1em}.subject-shell__md .note-reader-modal__table-wrap{margin:22px 0;overflow-x:auto;max-width:780px}.subject-shell__md .note-reader-modal__table{width:100%;border-collapse:collapse;font-size:14.5px}.subject-shell__md .note-reader-modal__table th,.subject-shell__md .note-reader-modal__table td{padding:10px 14px;border:1px solid var(--sb-border);text-align:left;vertical-align:top;color:var(--sb-body)}.subject-shell__md .note-reader-modal__table th{background:var(--sb-panel);font-weight:600;color:var(--sb-text)}.subject-shell__md .note-reader-modal__ol{margin:18px 0;padding-left:1.5rem;display:flex;flex-direction:column;gap:12px;max-width:780px}.subject-shell__md .note-reader-modal__ol li{font-size:18px;line-height:1.7;color:var(--sb-body)}.subject-shell__continue{margin:34px 0 0;padding:0;border:none}.subject-shell__continue-card--active{border-color:rgba(var(--sb-rgb-accent),.42);background:var(--sb-note-active);box-shadow:0 6px 22px rgba(var(--sb-rgb-accent),.1)}.subject-shell__continue-card--active h3{color:var(--sb-accent-deep)}.subject-shell__preview{margin:0}.subject-shell__preview-head{margin:28px 0 12px;font-family:var(--font-hero, Georgia, serif);font-size:1.05rem;font-weight:500;color:var(--sb-accent-deep)}.subject-shell__preview-head:first-child{margin-top:0}.subject-shell__preview-overview{margin:0;font-size:16px;line-height:1.65;color:var(--sb-body)}.subject-shell__preview-list{margin:0;padding:0 0 0 1.15rem;display:flex;flex-direction:column;gap:10px;font-size:15px;line-height:1.55;color:var(--sb-body)}.subject-shell__preview-list li{padding-left:.15rem}.subject-shell__preview-list li::marker{color:var(--sb-accent)}.subject-shell__article-footer{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px 32px;margin:40px 0 0;align-items:start}.subject-shell__continue-head{margin:0;font-family:var(--font),sans-serif;font-size:11px;font-weight:600;letter-spacing:.34em;text-transform:uppercase;height:24px;line-height:24px;color:var(--sb-accent)}.subject-shell__continue-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:22px}.subject-shell__continue-card{position:relative;height:124px;box-sizing:border-box;padding:20px;border-radius:18px;border:1px solid var(--sb-border);background:var(--sb-canvas);transition:border-color var(--sb-interactive-duration) var(--sb-interactive-ease),background-color var(--sb-interactive-duration) var(--sb-interactive-ease),box-shadow var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__continue-card:hover{border-color:rgba(var(--sb-rgb-accent),.32);background:var(--sb-hover-surface);box-shadow:0 6px 22px rgba(var(--sb-rgb-accent),.08)}.subject-shell__continue-card:hover h3{color:var(--sb-accent-deep)}.subject-shell__continue-card:hover .subject-shell__continue-arrow{opacity:.9;color:var(--sb-accent-deep)}.subject-shell__continue-card svg{width:22px;height:22px;color:var(--sb-accent);margin-bottom:8px;transition:color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__continue-card:hover svg{color:var(--sb-accent-deep)}.subject-shell__continue-card h3{margin:0;font-family:var(--font),sans-serif;font-size:16px;font-weight:700;color:var(--sb-text);transition:color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__continue-card p{margin:6px 0 0;font-size:13px;line-height:1.45;color:var(--sb-text-secondary);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.subject-shell__continue-arrow{position:absolute;right:20px;bottom:18px;font-size:16px;color:var(--sb-accent);opacity:.55;transition:opacity var(--sb-interactive-duration) var(--sb-interactive-ease),color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__resources-section{margin:0;padding:0;max-width:none}.subject-shell__resources-head{margin:0 0 18px;font-family:var(--font),sans-serif;font-size:11px;font-weight:600;letter-spacing:.32em;text-transform:uppercase;height:24px;line-height:24px;color:var(--sb-accent)}.subject-shell__resource-table{list-style:none;margin:0;padding:0}.subject-shell__resource-row{width:100%;box-sizing:border-box;height:56px;padding:0 14px;border:none;border-bottom:1px solid var(--sb-border);background:transparent;display:flex;align-items:center;justify-content:space-between;gap:12px;font:inherit;font-size:15px;font-weight:500;color:var(--sb-text);cursor:pointer;text-align:left;border-radius:12px;transition:background-color var(--sb-interactive-duration) var(--sb-interactive-ease),color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__resource-table>li:last-child .subject-shell__resource-row{border-bottom:none}.subject-shell__resource-row:hover{color:var(--sb-accent-deep);background:var(--sb-hover-surface)}.subject-shell__resource-row:hover .subject-shell__resource-row-left svg{color:var(--sb-accent)}.subject-shell__resource-row:hover .subject-shell__resource-tag{color:var(--sb-accent-muted)}.subject-shell__resource-row:active{background:var(--sb-pressed-surface);color:var(--sb-accent-deep)}.subject-shell__resource-row-left{display:flex;align-items:center;gap:12px;min-width:0}.subject-shell__resource-row-left svg{width:18px;height:18px;flex-shrink:0;color:var(--sb-text-secondary);transition:color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__resource-tag{font-size:11px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--sb-text-label);transition:color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__up-next{margin:0;padding:24px 22px 22px;max-width:none;border-radius:18px;border:1px solid var(--sb-border);background:var(--sb-canvas)}.subject-shell__up-next-head{margin:0 0 16px;font-family:var(--font),sans-serif;font-size:11px;font-weight:600;letter-spacing:.28em;text-transform:uppercase;color:var(--sb-accent)}.subject-shell__up-next-empty{margin:0;font-size:15px;line-height:1.55;color:var(--sb-text-secondary)}.subject-shell__up-next-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}.subject-shell__up-next-row{width:100%;display:flex;align-items:flex-start;gap:12px;padding:12px 14px;border-radius:14px;border:1px solid transparent;background:rgba(var(--sb-rgb-accent),.05);font:inherit;font-weight:500;color:var(--sb-text);cursor:pointer;text-align:left;transition:background-color var(--sb-interactive-duration) var(--sb-interactive-ease),border-color var(--sb-interactive-duration) var(--sb-interactive-ease),color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__up-next-title{font-size:15px;line-height:1.35;color:var(--sb-text);transition:color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__up-next-line{flex:1;min-width:0;display:flex;flex-direction:column;align-items:flex-start;gap:3px}.subject-shell__up-next-sku{font-size:13px;font-weight:700;letter-spacing:.02em;color:var(--sb-accent);transition:color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__up-next-row:hover{background:var(--sb-hover-surface);border-color:rgba(var(--sb-rgb-accent),.28);color:var(--sb-accent-deep)}.subject-shell__up-next-row:hover .subject-shell__up-next-title,.subject-shell__up-next-row:hover .subject-shell__up-next-sku{color:var(--sb-accent-deep)}.subject-shell__up-next-row:hover svg:first-of-type{color:var(--sb-accent)}.subject-shell__up-next-row:hover svg:last-of-type{opacity:.6;color:var(--sb-accent)}.subject-shell__up-next-row:active{background:var(--sb-pressed-surface);border-color:rgba(var(--sb-rgb-accent),.38)}.subject-shell__up-next-row svg:first-of-type{width:18px;height:18px;flex-shrink:0;color:var(--sb-text-secondary);margin-top:2px;transition:color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__up-next-row svg:last-of-type{margin-left:auto;width:16px;height:16px;opacity:.35;flex-shrink:0;margin-top:4px;transition:opacity var(--sb-interactive-duration) var(--sb-interactive-ease),color var(--sb-interactive-duration) var(--sb-interactive-ease)}.subject-shell__reader-scroll--flashcards{padding:28px clamp(24px,4vw,48px) 48px}.subject-shell__article-frame--wide{max-width:1080px;padding-right:0;padding-bottom:48px}.subject-shell__flashcards-intro{margin-top:20px;display:flex;flex-direction:column;gap:14px;max-width:760px}.subject-shell__article-title--compact{margin:6px 0 0;font-size:clamp(2.5rem,calc(1.6rem + 2.8vw),4.5rem)}.subject-shell__flashcards-blurb{margin:0;max-width:640px;font-family:var(--font),sans-serif;font-size:17px;line-height:1.55;color:var(--sb-text-secondary)}.subject-shell__continue-card--button{display:block;width:100%;text-align:left;font:inherit;cursor:pointer;-webkit-appearance:none;-moz-appearance:none;appearance:none}.subject-shell__continue-card--button:focus-visible{outline:none;box-shadow:0 0 0 2px var(--sb-canvas),0 0 0 4px rgba(var(--sb-rgb-accent),.32)}@media(max-width:1279px){.subject-shell{padding:0;height:100vh;height:100dvh;width:100vw;row-gap:0}.subject-shell__app-bar{padding-inline:8px}.subject-shell__app-bar-breadcrumb{display:none}.subject-shell__chrome{grid-template-columns:minmax(0,1fr);grid-auto-rows:auto;border-radius:0}.subject-shell__chrome--mode-flashcards{grid-template-columns:minmax(0,1fr)}.subject-shell__chrome--mode-flashcards .subject-shell__reader{grid-column:1}.subject-shell__sidebar{width:100%;height:auto;max-height:min(42dvh,420px);border-right:none;border-bottom:1px solid var(--sb-divider-col)}.subject-shell__topics{width:100%;height:auto;max-height:min(38dvh,420px);border-right:none;border-bottom:1px solid var(--sb-divider-col)}.subject-shell__reader{grid-column:1;min-height:min(52dvh,560px)}.subject-shell__article-frame{padding-bottom:28px;max-width:none;padding-right:0}.subject-shell__continue-grid,.subject-shell__article-footer{grid-template-columns:1fr}.subject-shell__crumbs{max-width:calc(100% - 108px)}}.subject-shell__nav-btn--coming{opacity:.65}.subject-shell__nav-btn--coming:hover{background:var(--sb-hover-surface);color:var(--sb-text-secondary)}.subject-shell__nav-btn-badge{margin-left:auto;padding:2px 7px;font-size:9.5px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;border-radius:999px;background:rgba(var(--sb-rgb-accent),.12);color:var(--sb-accent);border:1px solid rgba(var(--sb-rgb-accent),.22)}.subject-shell__nav-btn[aria-selected=true] .subject-shell__nav-btn-badge{background:#ffffff2e;color:var(--paper-panel);border-color:#ffffff52}.subject-shell__progress-detail{display:block;margin-top:2px;font-size:10.5px;font-weight:500;letter-spacing:.04em;text-transform:none;color:var(--sb-text-faint)}.subject-shell__topics-area{display:flex;align-items:baseline;justify-content:space-between;gap:10px}.subject-shell__topics-count{font-size:10px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--sb-text-faint)}.subject-shell__topics-search{position:relative}.subject-shell__search-clear,.subject-shell__search-kbd{position:absolute;right:8px;top:50%;transform:translateY(-50%);display:inline-flex;align-items:center;gap:4px;pointer-events:none}.subject-shell__search-clear{pointer-events:auto;width:22px;height:22px;display:grid;place-items:center;border-radius:8px;border:1px solid transparent;background:transparent;font-size:16px;color:var(--sb-text-faint);cursor:pointer;transition:color .16s ease,background-color .16s ease,border-color .16s ease}.subject-shell__search-clear:hover{color:var(--sb-accent);background:rgba(var(--sb-rgb-accent),.08);border-color:rgba(var(--sb-rgb-accent),.22)}.subject-shell__search-kbd kbd{display:inline-block;padding:1px 5px;font-family:ui-monospace,SF Mono,Menlo,monospace;font-size:9.5px;font-weight:700;color:var(--sb-text-faint);background:#2d25200a;border:1px solid var(--sb-border);border-radius:5px}.subject-shell__acc-panel-wrap{display:grid;grid-template-rows:0fr;transition:grid-template-rows .24s cubic-bezier(.22,1,.36,1)}.subject-shell__acc-panel-wrap--open{grid-template-rows:1fr}.subject-shell__acc-panel-wrap>.subject-shell__acc-panel{overflow:hidden;min-height:0}@supports not (grid-template-rows: 0fr){.subject-shell__acc-panel-wrap{display:block;max-height:0;overflow:hidden;transition:max-height .24s cubic-bezier(.22,1,.36,1)}.subject-shell__acc-panel-wrap--open{max-height:1200px}}.subject-shell__acc-chev-text{display:inline-block;transition:transform .2s ease;transform-origin:50% 50%;font-size:9px;color:var(--sb-text-faint)}.subject-shell__acc-chev-text--open{transform:rotate(90deg);color:var(--sb-accent)}.subject-shell__crumb--link{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:none;background:transparent;padding:0;font:inherit;color:var(--sb-text-secondary);cursor:pointer;text-decoration:none;border-bottom:1px dashed transparent;transition:color .16s ease,border-color .16s ease}.subject-shell__crumb--link:hover{color:var(--sb-accent);border-bottom-color:rgba(var(--sb-rgb-accent),.5)}.subject-shell__reader-mode-fader{animation:mode-fade-in .32s cubic-bezier(.22,1,.36,1) both}@keyframes mode-fade-in{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.subject-shell__reader-empty-kicker{margin:0;font-family:var(--font);font-size:11px;font-weight:700;letter-spacing:.32em;text-transform:uppercase;color:var(--sb-accent)}.subject-shell__reader-empty--mode .subject-shell__reader-empty-title{font-family:var(--font-hero);font-size:clamp(1.6rem,calc(1.1rem + 1vw),2.2rem);font-weight:400;color:var(--sb-text);margin-top:8px}.subject-shell__reader-empty-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:6px}.subject-shell__primary-btn{display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 22px;border-radius:12px;border:1px solid var(--sb-accent-deep);background:var(--sb-accent);color:var(--paper-panel);font:inherit;font-family:var(--font);font-size:13px;font-weight:600;letter-spacing:.01em;cursor:pointer;transition:filter .16s ease,background-color .16s ease}.subject-shell__primary-btn:hover{filter:brightness(1.05)}.subject-shell__ghost-btn{display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 22px;border-radius:12px;border:1px solid var(--sb-border);background:var(--sb-panel);color:var(--sb-text);font:inherit;font-family:var(--font);font-size:13px;font-weight:600;letter-spacing:.01em;cursor:pointer;transition:border-color .16s ease,color .16s ease,background-color .16s ease}.subject-shell__ghost-btn:hover{border-color:var(--sb-accent-muted);color:var(--sb-accent);background:var(--sb-hover-surface)}.subject-shell__pin-marker{margin-left:auto;color:var(--sb-accent);display:inline-flex;align-items:center;justify-content:center}.subject-shell__mini-empty{padding:6px 8px;font-size:11px;color:var(--sb-text-faint);line-height:1.4;border-radius:8px}@media print{body.stack-print-mode .hero-stage,body.stack-print-mode .system-strip__nav,body.stack-print-mode .system-strip__edge,body.stack-print-mode .system-strip__lines,body.stack-print-mode .subject-shell__app-bar,body.stack-print-mode .subject-shell__sidebar,body.stack-print-mode .subject-shell__topics,body.stack-print-mode .subject-shell__reader-top,body.stack-print-mode .subject-shell__up-next,body.stack-print-mode .subject-shell__continue,body.stack-print-mode .toast-stack,body.stack-print-mode .kbd-help{display:none!important}body.stack-print-mode .subject-shell,body.stack-print-mode .subject-shell__chrome{position:static!important;height:auto!important;width:auto!important;box-shadow:none!important;border:none!important;background:#fff!important;display:block!important;overflow:visible!important}body.stack-print-mode .subject-shell__reader,body.stack-print-mode .subject-shell__reader-scroll,body.stack-print-mode .subject-shell__article-frame,body.stack-print-mode .subject-shell__article{width:auto!important;max-width:none!important;padding:0!important;overflow:visible!important}body.stack-print-mode .subject-shell__article-title{color:#000!important}}@media(prefers-reduced-motion:reduce){.subject-shell__reader-mode-fader,.subject-shell__acc-panel-wrap,.subject-shell__acc-chev-text{transition:none;animation:none}}.login-page{--lp-ink: var(--brown-title, #2d2520);--lp-rust: var(--rust-accent, #b86b52);--lp-rust-deep: var(--rust-accent-deep, #9e624c);--lp-muted: var(--text-subtle, rgba(52, 44, 38, .58));--lp-border: rgba(45, 37, 32, .11);--lp-press: .08s;position:fixed;top:0;right:0;bottom:0;left:0;z-index:180;min-height:100dvh;overflow:auto;background:var(--cream-page);color:var(--lp-ink);font-family:var(--font)}.login-page:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;z-index:0;opacity:.028;pointer-events:none;mix-blend-mode:multiply;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='256' height='256'%3E%3Cfilter id='a'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23a)'/%3E%3C/svg%3E");background-size:220px 220px}.login-page__corner{position:relative;z-index:2;display:flex;align-items:center;gap:.85rem;padding:calc(clamp(1.4rem,3.5vh,2.2rem) + env(safe-area-inset-top,0px)) clamp(1.45rem,5.5vw,3.75rem) 0}.login-page__center{position:relative;z-index:1;min-height:calc(100dvh - 4.5rem);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:clamp(2rem,5vh,3rem);padding:clamp(1.5rem,4vh,2.5rem) clamp(1.45rem,5.5vw,3.75rem) calc(clamp(1.1rem,2.6vh,1.8rem) + env(safe-area-inset-bottom,0px))}.login-page__signature{margin:0;padding:0;font-family:var(--font-hero);font-size:clamp(2.8rem,calc(1.5rem + 5.5vw),5.5rem);font-style:italic;font-weight:400;line-height:.95;letter-spacing:-.02em;text-align:center;color:var(--lp-rust)}.login-page__signature-dot{color:var(--lp-rust)}.login-page__auth{display:flex;flex-direction:column;align-items:center;gap:1.25rem;width:100%}.login-page__card{width:min(100%,24rem);padding:clamp(1.85rem,4vw,2.35rem) clamp(1.65rem,3.5vw,2.1rem);border:1px solid rgba(45,37,32,.15);border-radius:14px;background:var(--paper-panel);box-shadow:0 8px 28px #30282217,0 2px 6px #3028220d}.login-page__google-btn,.login-page__submit{-webkit-appearance:none;-moz-appearance:none;appearance:none;display:inline-flex;align-items:center;justify-content:center;width:100%;min-height:2.85rem;border-radius:8px;font:inherit;font-size:.87rem;font-weight:600;cursor:pointer;transition:background var(--hover-dur) var(--ease-micro),border-color var(--hover-dur) var(--ease-micro),box-shadow var(--hover-dur) var(--ease-micro),transform var(--lp-press) var(--ease-micro),filter var(--lp-press) var(--ease-micro)}.login-page__google-btn{gap:.65rem;padding:.68rem 1rem;border:1px solid var(--lp-border);background:var(--paper-panel);color:var(--lp-ink);box-shadow:var(--shadow-btn, 0 1px 4px rgba(48, 40, 34, .028))}.login-page__google-btn:hover{background:var(--paper-panel-hover);border-color:#2d25202e;transform:translateY(-.5px)}.login-page__google-btn:active{transform:translateY(1px) scale(.986);background:#f3f0ec;box-shadow:inset 0 1px 3px #3028220f;transition-duration:var(--lp-press)}.login-page__submit{gap:.4rem;padding:.68rem 1rem;border:1px solid rgba(134,68,42,.35);background:var(--lp-rust);color:#fffaf6f7;box-shadow:none}.login-page__submit:hover{background:var(--lp-rust-deep);transform:translateY(-.5px)}.login-page__submit:active{transform:translateY(1.5px) scale(.982);filter:brightness(.96);transition-duration:var(--lp-press)}.login-page__divider{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:.9rem;margin:1.35rem 0 1.25rem}.login-page__divider-line{height:1px;background:var(--lp-border)}.login-page__divider-text{font-size:.7rem;letter-spacing:.04em;color:#2d252066}.login-page__field{display:flex;flex-direction:column;gap:.52rem;margin-bottom:1.2rem}.login-page__field-label{font-size:.74rem;font-weight:700;color:#2d2520c2}.login-page__input-wrap{position:relative;display:block}.login-page__input{width:100%;min-height:2.85rem;padding:.68rem 2.6rem .68rem .9rem;border:1px solid var(--lp-border);border-radius:8px;background:var(--paper-panel);color:var(--lp-ink);font:inherit;font-size:.87rem;transition:border-color var(--hover-dur) var(--ease-micro),box-shadow var(--hover-dur) var(--ease-micro)}.login-page__input::placeholder{color:#2d252052}.login-page__input:focus{outline:none;border-color:#b86b5280;box-shadow:0 0 0 3px #b86b522e}.login-page__input-icon{position:absolute;top:50%;right:.9rem;color:#2d252057;pointer-events:none;transform:translateY(-50%)}.login-page__signup{margin:1.35rem 0 0;text-align:center;font-size:.77rem;color:#2d25207a}.login-page__signup-link{padding:0;border:none;background:transparent;color:var(--lp-rust-deep);font:inherit;font-size:inherit;font-weight:700;cursor:pointer;transition:color var(--hover-dur) var(--ease-micro),transform var(--lp-press) var(--ease-micro)}.login-page__signup-link:hover{color:var(--lp-rust);text-decoration:underline}.login-page__signup-link:active{transform:scale(.95);transition-duration:var(--lp-press)}.login-page__secure{display:inline-flex;align-items:center;justify-content:center;gap:.46rem;margin:0;color:#2d252061;font-size:.74rem}.login-page .hero-menu-btn{transition:none}.login-page .hero-menu-btn:active{transform:none}.login-page__reveal{opacity:0;transform:translateY(16px);transition:opacity .82s var(--ease-out-soft),transform .82s var(--ease-out-soft)}.login-page--entered .login-page__reveal{opacity:1;transform:translateY(0)}.login-page--entered .login-page__reveal--1{transition-delay:.08s}.login-page--entered .login-page__reveal--2{transition-delay:.18s}.login-page__hint{margin:0 0 1rem;font-size:.82rem;line-height:1.45;color:var(--brown-muted, #5c534a)}.login-page__error{margin:0 0 .75rem;font-size:.85rem;color:#b33}.login-page__message{margin:0 0 .75rem;font-size:.85rem;color:var(--rust-accent-deep, #9e624c)}@media(max-width:640px){.login-page__signature{font-size:clamp(2.2rem,10vw,3.2rem)}.login-page__card{padding:1.65rem 1.2rem 1.5rem;border-radius:12px}}@media(prefers-reduced-motion:reduce){.login-page__reveal{opacity:1;transform:none;transition:none}.login-page__google-btn,.login-page__submit,.login-page__signup-link,.login-page .hero-menu-btn{transition:none}.login-page__google-btn:hover,.login-page__submit:hover,.login-page__google-btn:active,.login-page__submit:active,.login-page__signup-link:active,.login-page .hero-menu-btn:active{transform:none;filter:none}}.profile-page{min-height:100dvh;background:var(--cream-page, #fdfcfa);color:var(--brown-title, #2d2520)}.profile-page__corner{padding:1.25rem clamp(1.25rem,4vw,2rem)}.profile-page__main{max-width:480px;margin:0 auto;padding:0 1.5rem 3rem}.profile-page__title{margin:0 0 .5rem;font-size:1.75rem}.profile-page__notice{margin:0 0 1.5rem;color:var(--brown-muted, #5c534a);line-height:1.45}.profile-page__card{padding:1.25rem;border-radius:12px;background:var(--paper-panel, #f9f8f6);border:1px solid var(--ink-08, rgba(45, 37, 32, .08))}.profile-page__field{display:flex;flex-direction:column;gap:.35rem;margin-bottom:1rem;font-size:.85rem;color:var(--brown-muted, #5c534a)}.profile-page__field input,.profile-page__field select{padding:.6rem .75rem;border:1px solid var(--ink-08);border-radius:10px;font:inherit;background:var(--cream-page, #fdfcfa)}.profile-page__fieldset{border:none;margin:0 0 1rem;padding:0}.profile-page__fieldset legend{font-size:.85rem;color:var(--brown-muted, #5c534a);margin-bottom:.5rem}.profile-page__chips{display:flex;flex-wrap:wrap;gap:.45rem}.profile-page__chip{padding:.45rem .8rem;border:1px solid var(--ink-08);border-radius:999px;background:transparent;font:inherit;cursor:pointer}.profile-page__chip--on{border-color:var(--rust-accent, #b86b52);background:#b86b521a}.profile-page__msg{margin:0 0 .75rem;font-size:.88rem;color:var(--rust-accent-deep, #9e624c)}.profile-page__actions{display:flex;flex-wrap:wrap;gap:.5rem}.profile-page__btn{padding:.6rem 1rem;border:none;border-radius:10px;background:var(--rust-accent, #b86b52);color:#fff;font:inherit;cursor:pointer}.profile-page__btn--ghost{background:transparent;color:var(--brown-muted, #5c534a);border:1px solid var(--ink-08)}.profile-page__footer{margin-top:1.5rem}.profile-page__link-btn{border:none;background:none;font:inherit;color:var(--rust-accent, #b86b52);cursor:pointer;text-decoration:underline}.billing-page{--bp-ink: var(--brown-title, #2d2520);--bp-rust: var(--rust-accent, #b86b52);--bp-rust-deep: var(--rust-accent-deep, #9e624c);--bp-muted: var(--text-subtle, rgba(52, 44, 38, .58));--bp-border: rgba(45, 37, 32, .11);--bp-press: .08s;position:fixed;top:0;right:0;bottom:0;left:0;z-index:180;min-height:100dvh;overflow:auto;background:var(--cream-page);color:var(--bp-ink);font-family:var(--font)}.billing-page:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;z-index:0;opacity:.028;pointer-events:none;mix-blend-mode:multiply;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='256' height='256'%3E%3Cfilter id='a'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23a)'/%3E%3C/svg%3E");background-size:220px 220px}.billing-page__corner{position:relative;z-index:2;display:flex;align-items:center;gap:.85rem;padding:calc(clamp(1.4rem,3.5vh,2.2rem) + env(safe-area-inset-top,0px)) clamp(1.45rem,5.5vw,3.75rem) 0}.billing-page__center{position:relative;z-index:1;min-height:calc(100dvh - 4.5rem);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:clamp(1.75rem,4vh,2.5rem);padding:clamp(1.5rem,4vh,2.5rem) clamp(1.45rem,5.5vw,3.75rem) calc(clamp(1.1rem,2.6vh,1.8rem) + env(safe-area-inset-bottom,0px))}.billing-page__signature{margin:0;padding:0;font-family:var(--font-hero, "Cormorant Garamond", serif);font-size:clamp(2.8rem,calc(1.5rem + 5.5vw),5.5rem);font-style:italic;font-weight:400;line-height:.95;letter-spacing:-.02em;text-align:center;color:var(--bp-rust)}.billing-page__signature-dot{color:var(--bp-rust)}.billing-page__content{display:flex;flex-direction:column;align-items:center;gap:1.25rem;width:100%}.billing-page__card{width:min(100%,26rem);padding:clamp(1.85rem,4vw,2.35rem) clamp(1.65rem,3.5vw,2.1rem);border:1px solid rgba(45,37,32,.13);border-radius:14px;background:var(--paper-panel);box-shadow:0 8px 28px #30282217,0 2px 6px #3028220d;display:flex;flex-direction:column;gap:0}.billing-page__card--success{text-align:center;align-items:center;gap:1rem}.billing-page__plan-header{display:flex;flex-direction:column;gap:.38rem;padding-bottom:1.25rem;margin-bottom:1.25rem;border-bottom:1px solid var(--bp-border)}.billing-page__plan-badge{display:inline-block;align-self:flex-start;padding:.22rem .62rem;border-radius:50px;background:#b86b521f;border:1px solid rgba(184,107,82,.24);font-family:var(--font);font-size:.6rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--bp-rust-deep);margin-bottom:.2rem}.billing-page__plan-tagline{margin:0;font-size:1rem;font-weight:600;color:var(--bp-ink);line-height:1.3}.billing-page__price{margin:0;font-family:var(--font-display, "Cormorant Garamond", serif);font-size:1.45rem;font-weight:400;letter-spacing:-.01em;color:var(--bp-rust);line-height:1.2}.billing-page__features{list-style:none;margin:0 0 1.5rem;padding:0;display:flex;flex-direction:column;gap:.68rem}.billing-page__feature{display:flex;align-items:flex-start;gap:.58rem;font-size:.84rem;font-weight:400;color:#2d2520c7;line-height:1.45}.billing-page__check{flex-shrink:0;margin-top:.16rem;color:var(--bp-rust)}.billing-page__error{margin:0 0 1rem;padding:.62rem .85rem;border-radius:8px;background:#b86b5214;border:1px solid rgba(184,107,82,.22);font-size:.78rem;color:var(--bp-rust-deep);line-height:1.45}.billing-page__subscribe-btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;display:inline-flex;align-items:center;justify-content:center;width:100%;min-height:2.85rem;border-radius:8px;font:inherit;font-size:.87rem;font-weight:600;cursor:pointer;gap:.4rem;padding:.68rem 1rem;border:1px solid rgba(134,68,42,.35);background:var(--bp-rust);color:#fffaf6f7;box-shadow:none;transition:background var(--hover-dur, .26s) var(--ease-micro, cubic-bezier(.33, 1, .68, 1)),border-color var(--hover-dur, .26s) var(--ease-micro, cubic-bezier(.33, 1, .68, 1)),box-shadow var(--hover-dur, .26s) var(--ease-micro, cubic-bezier(.33, 1, .68, 1)),transform var(--bp-press) var(--ease-micro, cubic-bezier(.33, 1, .68, 1)),filter var(--bp-press) var(--ease-micro, cubic-bezier(.33, 1, .68, 1))}.billing-page__subscribe-btn:hover:not(:disabled){background:var(--bp-rust-deep);transform:translateY(-.5px)}.billing-page__subscribe-btn:active:not(:disabled){transform:translateY(1.5px) scale(.982);filter:brightness(.96);transition-duration:var(--bp-press)}.billing-page__subscribe-btn:disabled{opacity:.68;cursor:default}.billing-page__terms{margin:.9rem 0 0;text-align:center;font-size:.7rem;color:#2d252061;line-height:1.5}.billing-page__secure{display:inline-flex;align-items:center;justify-content:center;gap:.46rem;margin:0;color:#2d252061;font-size:.74rem}.billing-page__success-icon{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;background:#b86b521a;border:1px solid rgba(184,107,82,.22);color:var(--bp-rust);margin-bottom:.25rem}.billing-page__success-title{margin:0;font-family:var(--font-display, "Cormorant Garamond", serif);font-size:1.15rem;font-weight:400;letter-spacing:.01em;color:var(--bp-ink)}.billing-page__success-sub{margin:0 0 .5rem;font-size:.84rem;color:#2d252094;line-height:1.55;max-width:20rem}.billing-page__reveal{opacity:0;transform:translateY(16px);transition:opacity .82s var(--ease-out-soft, cubic-bezier(.22, 1, .36, 1)),transform .82s var(--ease-out-soft, cubic-bezier(.22, 1, .36, 1))}.billing-page--entered .billing-page__reveal{opacity:1;transform:translateY(0)}.billing-page--entered .billing-page__reveal--1{transition-delay:.08s}.billing-page--entered .billing-page__reveal--2{transition-delay:.18s}@media(max-width:640px){.billing-page__signature{font-size:clamp(2.2rem,10vw,3.2rem)}.billing-page__card{padding:1.65rem 1.2rem 1.5rem;border-radius:12px}}@media(prefers-reduced-motion:reduce){.billing-page__reveal{opacity:1;transform:none;transition:none}.billing-page__subscribe-btn{transition:none}.billing-page__subscribe-btn:hover:not(:disabled),.billing-page__subscribe-btn:active:not(:disabled){transform:none;filter:none}}.onboarding{position:fixed;top:0;right:0;bottom:0;left:0;z-index:200;display:flex;align-items:center;justify-content:center;padding:1.5rem;background:#2d25206b;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.onboarding__card{width:min(100%,440px);padding:clamp(1.5rem,4vw,2rem);border-radius:14px;background:var(--cream-page, #fdfcfa);box-shadow:0 12px 40px #2d252024}.onboarding__kicker{margin:0 0 .35rem;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--rust-accent, #b86b52)}.onboarding__title{margin:0 0 1.25rem;font-size:1.35rem;font-weight:600;color:var(--brown-title, #2d2520);line-height:1.25}.onboarding__steps{display:flex;gap:.45rem;margin-bottom:1.25rem}.onboarding__step-dot{width:28px;height:3px;border-radius:2px;background:var(--ink-08, rgba(45, 37, 32, .08))}.onboarding__step-dot--on{background:var(--rust-accent, #b86b52)}.onboarding__lead{margin:0 0 1rem;color:var(--brown-muted, #5c534a);line-height:1.45}.onboarding__preview{margin:-.35rem 0 1rem;padding:.55rem .7rem;border-radius:8px;font-size:.88rem;line-height:1.4;color:var(--brown-muted, #5c534a);background:#b86b5214}.onboarding__preview strong{color:var(--brown-title, #2d2520);font-weight:600}.onboarding__sub{margin:0 0 1.25rem;font-size:.92rem;color:var(--text-subtle, rgba(52, 44, 38, .58))}.onboarding__field{display:flex;flex-direction:column;gap:.35rem;margin-bottom:1rem}.onboarding__label{font-size:.82rem;color:var(--brown-muted, #5c534a)}.onboarding__input,.onboarding__select{padding:.65rem .75rem;border:1px solid var(--ink-08, rgba(45, 37, 32, .08));border-radius:10px;font:inherit;background:var(--paper-panel, #f9f8f6);color:var(--brown-title, #2d2520)}.onboarding__chips{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.25rem}.onboarding__chip{padding:.5rem .85rem;border:1px solid var(--ink-08);border-radius:999px;background:transparent;font:inherit;cursor:pointer;color:var(--brown-title, #2d2520)}.onboarding__chip--on{border-color:var(--rust-accent, #b86b52);background:#b86b521a}.onboarding__actions{display:flex;gap:.65rem;justify-content:flex-end}.onboarding__btn{padding:.65rem 1.1rem;border:none;border-radius:10px;background:var(--rust-accent, #b86b52);color:#fff;font:inherit;font-weight:500;cursor:pointer}.onboarding__btn:disabled{opacity:.45;cursor:not-allowed}.onboarding__btn--ghost{background:transparent;color:var(--brown-muted, #5c534a);border:1px solid var(--ink-08)}.onboarding__panel{animation:onboarding-in .28s ease}@keyframes onboarding-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.kbd-help{position:fixed;top:0;right:0;bottom:0;left:0;z-index:10001;display:grid;place-items:center;padding:clamp(16px,4vw,32px);background:#231c166b;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);animation:kbd-help-fade-in .2s ease both}.kbd-help__dialog{width:min(560px,100%);max-height:min(78dvh,720px);display:flex;flex-direction:column;background:var(--paper-panel);border-radius:20px;border:1px solid rgba(160,80,52,.24);box-shadow:0 30px 60px #140e0852;overflow:hidden;animation:kbd-help-pop .24s cubic-bezier(.22,1,.36,1) both}.kbd-help__header{position:relative;padding:22px 28px 14px;border-bottom:1px solid rgba(45,37,32,.08)}.kbd-help__kicker{margin:0;font-family:var(--font);font-size:11px;font-weight:700;letter-spacing:.32em;text-transform:uppercase;color:var(--rust-accent)}.kbd-help__title{margin:4px 0 0;font-family:var(--font-hero, Georgia, serif);font-size:32px;font-weight:400;letter-spacing:-.01em;color:var(--brown-title)}.kbd-help__close{position:absolute;top:18px;right:18px;width:36px;height:36px;display:grid;place-items:center;border-radius:10px;border:1px solid rgba(45,37,32,.12);background:transparent;font-size:20px;color:#2d2520b3;cursor:pointer;transition:background-color .16s ease,color .16s ease,border-color .16s ease}.kbd-help__close:hover{background:#a0503414;border-color:#a0503452;color:#a05034}.kbd-help__body{padding:12px 28px 8px;overflow-y:auto;display:flex;flex-direction:column;gap:18px}.kbd-help__group h3{margin:8px 0;font-family:var(--font);font-size:11px;font-weight:700;letter-spacing:.28em;text-transform:uppercase;color:#2d252094}.kbd-help__group ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column}.kbd-help__group li{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 0;border-top:1px solid rgba(45,37,32,.05);font-family:var(--font);font-size:14px}.kbd-help__group li:first-child{border-top:none}.kbd-help__group--appearance ul{margin:0;padding:0;list-style:none}.kbd-help__setting-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 0 4px;border-top:none}.kbd-help__setting-copy{display:flex;flex-direction:column;gap:2px;min-width:0}.kbd-help__setting-label{font-size:14px;font-weight:600;color:var(--brown-title)}.kbd-help__setting-hint{font-size:12px;color:var(--text-muted-creme)}.kbd-help__toggle{position:relative;flex-shrink:0;width:44px;height:26px;padding:0;border:1px solid var(--ink-08);border-radius:999px;background:var(--cream-deep);cursor:pointer;transition:background-color .18s ease,border-color .18s ease}.kbd-help__toggle--on{background:var(--rust-accent);border-color:var(--rust-accent-deep)}.kbd-help__toggle-thumb{position:absolute;top:2px;left:2px;width:20px;height:20px;border-radius:50%;background:var(--paper-panel);box-shadow:0 1px 3px #2d25202e;transition:transform .18s ease}.kbd-help__toggle--on .kbd-help__toggle-thumb{transform:translate(18px)}.kbd-help__toggle:focus-visible{outline:2px solid var(--rust-accent);outline-offset:2px}.kbd-help__keys{display:inline-flex;align-items:center;gap:4px;flex-shrink:0}.kbd-help__plus{color:#2d252073;font-weight:600;margin:0 2px}.kbd-help__desc{flex:1;text-align:right;color:#2d2520b8;min-width:0}.kbd-help kbd{display:inline-block;padding:3px 8px;border-radius:8px;border:1px solid rgba(45,37,32,.16);background:#2d25200a;font-family:ui-monospace,SF Mono,Menlo,monospace;font-size:12px;font-weight:700;color:var(--brown-title);min-width:24px;text-align:center}.kbd-help__footer{padding:14px 28px 18px;border-top:1px solid rgba(45,37,32,.06);font-family:var(--font);font-size:12.5px;color:#2d252099}@keyframes kbd-help-fade-in{0%{opacity:0}to{opacity:1}}@keyframes kbd-help-pop{0%{opacity:0;transform:translateY(8px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}@media(prefers-reduced-motion:reduce){.kbd-help,.kbd-help__dialog{animation:none}}:root{--ease-panel: cubic-bezier(.52, .02, .13, .99);--ease-in-pop: cubic-bezier(.45, .02, .55, 1);--ease-out-soft: cubic-bezier(.22, 1, .36, 1);--ease-micro: cubic-bezier(.33, 1, .68, 1);--panel-dur: .52s;--hover-dur: .26s;--enter-dur: .85s;--cream-page: #fdfcfa;--cream-warm: #fbfaf8;--cream-deep: #f6f5f2;--paper-panel: #f9f8f6;--paper-panel-hover: #f3f2ef;--rust-accent: #b86b52;--rust-accent-soft: #c47d62;--rust-accent-deep: #9e624c;--ref-muted: #958c85;--sheet-bg: #c4baa8;--sheet-surface: #b8ae9e;--sheet-edge: rgba(56, 48, 42, .11);--tone-olive: #6e6a5e;--tone-olive-soft: rgba(110, 106, 94, .32);--bg: var(--cream-page);--creme: #f6f5f2;--creme-deep: #eeede9;--copper: var(--rust-accent);--terracotta: var(--rust-accent);--terracotta-soft: var(--rust-accent-soft);--terracotta-deep: var(--rust-accent-deep);--terracotta-hover: #934d30;--brown-title: #2d2520;--brown-name: #7d6758;--brown-muted: #5c534a;--nav-bar-solid: var(--cream-page);--nav-tab-muted: #8a8278;--orange: var(--terracotta);--orange-mid: #b06242;--orange-hover: var(--terracotta-hover);--orange-light: #b89278;--accent: var(--terracotta);--hero-signature: var(--rust-accent);--text: var(--brown-title);--black: #2d2520;--text-subtle: rgba(52, 44, 38, .58);--panel-fill: #2a231e;--panel-surface: #3d342c;--panel-elevated: #4a3f36;--sheet-text: var(--brown-title);--sheet-muted: rgba(52, 44, 38, .48);--dock-grey: #5c5c5c;--dock-grey-hover: #6e6e6e;--stitch: #ede5d8;--stitch-inset: 8px;--shadow-btn: 0 1px 4px rgba(48, 40, 34, .028), 0 1px 1px rgba(48, 40, 34, .022);--shadow-btn-hover: 0 2px 10px rgba(48, 40, 34, .036), 0 1px 2px rgba(48, 40, 34, .026);--shadow-dock: 0 8px 28px rgba(48, 40, 34, .042), 0 1px 0 rgba(252, 249, 243, .45) inset;--logo-light: #c4896c;--logo-mid: var(--rust-accent);--logo-dark: #5c3829;--logo-outline: transparent;--border-ui: 1px;--border-logo: 0px;--sheet-overdraw: min(22dvh, 180px);--text-on-dark: #f5ebe0;--text-muted-dark: rgba(245, 235, 224, .5);--text-on-creme: var(--brown-title);--text-muted-creme: rgba(52, 44, 38, .48);--ink: #2d2520;--ink-08: rgba(45, 37, 32, .08);--ink-30: rgba(45, 37, 32, .3);--ink-55: rgba(45, 37, 32, .55);--sidebar-muted: rgba(45, 37, 32, .72);--cel-drop: none;--radius-btn: 50px;--radius-pill: 50px;--peek: min(200px, 30dvh);--nav-dock-footprint: calc(0px + env(safe-area-inset-bottom, 0px)) ;--sheet-pad-x: clamp(1.5rem, 5vw, 2.75rem);--sheet-pad-y: clamp(2rem, 4vh, 3rem);--sheet-inner-max: 34rem;--segment-track: var(--cream-deep);--segment-inactive: transparent;--segment-active-fill: var(--paper-panel);--font-ui: "DM Sans";--font: var(--font-ui), system-ui, -apple-system, BlinkMacSystemFont, sans-serif;--font-display: "Cormorant Garamond", Georgia, "Times New Roman", serif;--font-hero: "Cormorant Garamond", Georgia, serif}.site-brand{display:inline-flex;align-items:center;gap:.72rem;flex-shrink:0}.site-brand__logo{flex-shrink:0}.site-brand__name{font-family:var(--font);font-size:1.5rem;font-weight:600;line-height:42px;height:42px;letter-spacing:-.02em;color:var(--brown-title);-webkit-user-select:none;user-select:none}.app-loading{min-height:100dvh;display:flex;align-items:center;justify-content:center;color:var(--brown-muted, #5c534a);font-size:.95rem}.rd-home-tagline{margin:.35rem 0 0;font-size:.88rem;letter-spacing:.02em;color:var(--text-subtle, rgba(52, 44, 38, .58));text-align:center}html{scroll-behavior:smooth}body{background-color:var(--cream-page);color:var(--text-on-creme);overflow-x:hidden;overscroll-behavior-y:auto}.app{min-height:100%;min-height:100dvh;position:relative;color:var(--text-on-creme);font-family:var(--font);opacity:0;animation:app-root-fade var(--enter-dur) var(--ease-out-soft) forwards}.app.app--instant{opacity:1;animation:none}.app.app--instant .hero-reveal{opacity:1;transform:none;filter:none;transition:none}@keyframes app-root-fade{0%{opacity:0}to{opacity:1}}.hero-reveal{opacity:0;transform:translateY(18px);transition:opacity calc(var(--enter-dur) * .95) var(--ease-out-soft),transform calc(var(--enter-dur) * .95) var(--ease-out-soft)}.app--entered .hero-reveal--0{opacity:1;transform:translateY(0);filter:blur(0);transition-delay:0s}.app--entered .hero-reveal--1{opacity:1;transform:translateY(0);filter:blur(0);transition-delay:.12s}.app--entered .hero-reveal--2{opacity:1;transform:translateY(0);filter:blur(0);transition-delay:.24s}.app--entered .hero-reveal--3{opacity:1;transform:translateY(0);filter:blur(0);transition-delay:.36s}.app--entered .system-strip.nav-dock{opacity:1;transform:translateY(0)}.rise-panel__backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:2;pointer-events:none;opacity:0;transition:opacity .35s var(--ease-panel);background:#ede7df73;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.rise-panel__backdrop--visible{opacity:1}.rise-panel__backdrop--deep{background:#e4ded594;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.app__bg{position:absolute;top:0;right:0;bottom:0;left:0;overflow:hidden;z-index:0;background-color:var(--cream-page)}.app__bg:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;opacity:.028;pointer-events:none;mix-blend-mode:multiply;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='256' height='256'%3E%3Cfilter id='a'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23a)'/%3E%3C/svg%3E");background-size:220px 220px}.editorial-hero{position:relative;isolation:isolate;min-height:clamp(28rem,65vh,44rem);display:flex;align-items:stretch;overflow:visible}.editorial-hero__inner{position:relative;z-index:2;flex:1;display:flex;flex-direction:column;align-items:flex-start;justify-content:flex-start;padding:clamp(1.4rem,3.5vh,2.2rem) clamp(1.45rem,5.5vw,3.75rem) clamp(1.1rem,2.6vh,1.8rem) clamp(1.45rem,5.5vw,3.75rem);width:100%;max-width:none;margin-inline:0}.hero-top-bar{display:flex;align-items:flex-start;justify-content:space-between;width:100%;min-height:2.25rem;margin-bottom:clamp(.9rem,2.2vh,1.4rem);gap:1rem}.hero-top-bar__left{display:flex;align-items:center;gap:.75rem;flex-shrink:0}.hero-menu-btn{display:flex;flex-direction:column;justify-content:flex-start;align-items:flex-start;gap:7px;flex-shrink:0;width:46px;height:auto;min-height:42px;padding:0;margin:0;border:none;background:transparent;cursor:pointer}.hero-menu-btn:focus-visible{outline:2px solid var(--rust-accent);outline-offset:4px;border-radius:4px}.hero-menu-btn__bar{display:block;height:7px;width:34px;border-radius:4px;animation:none;transition:none}.stack-logo__bar{transform-origin:center;animation:none;transition:none}.hero-menu-btn__bar--top{background:var(--logo-light)}.hero-menu-btn__bar--mid{background:var(--rust-accent-deep)}.hero-menu-btn__bar--bottom{background:var(--logo-dark)}.hero-breadcrumb{position:relative;top:auto;right:auto;flex:1 1 auto;margin:0;margin-top:.06rem;padding:0;display:flex;flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:.48rem .62rem;max-width:none;min-width:0;font-family:var(--font);font-size:clamp(.5rem,.82vw,.575rem);font-weight:500;letter-spacing:.3em;text-transform:uppercase;color:#2d2520ad;text-align:right;line-height:1.45}.hero-breadcrumb__sep{opacity:.42;letter-spacing:.14em;font-weight:400;color:#2d2520ad}.hero-greeting{margin:0 0 clamp(1rem,2.6vh,1.65rem);padding:0;font-family:var(--font-hero);font-weight:400;color:var(--brown-title);text-align:left;width:50vw;max-width:100%;--hero-display-size: clamp(4.25rem, 10vw, 22rem)}.hero-greeting__slot{position:relative;display:block}.hero-greeting__measure{visibility:hidden;pointer-events:none;-webkit-user-select:none;user-select:none}.hero-greeting__measure .hero-greeting__line,.hero-greeting__measure .hero-greeting__signature{display:inline-block;white-space:nowrap}.hero-greeting__typed{position:absolute;left:0;top:0;right:0}.hero-greeting__line{display:block;font-family:inherit;font-size:var(--hero-display-size);font-weight:400;font-style:normal;line-height:.88;letter-spacing:-.01em;color:#2d2520}.hero-greeting__line--overlap{margin-top:-.04em}.hero-greeting__signature{display:block;margin-top:clamp(.14rem,.75vh,.32rem);font-family:inherit;font-size:var(--hero-display-size);font-style:italic;font-weight:400;line-height:.9;letter-spacing:0em;color:var(--hero-signature)}.hero-greeting__dot{color:var(--hero-signature)}.tw-cursor{display:inline-block;width:3px;height:.72em;background:currentColor;border-radius:1.5px;vertical-align:baseline;margin-left:.05em;opacity:.5;font-style:normal;animation:tw-blink .72s step-start infinite}@keyframes tw-blink{0%,to{opacity:.5}50%{opacity:0}}.hero-subcaption{margin:0 0 clamp(.9rem,2.4vh,1.55rem);padding:0;display:flex;align-items:center;gap:.92rem;font-family:var(--font);font-size:clamp(.56rem,.9vw,.68rem);font-weight:500;letter-spacing:.26em;text-transform:uppercase;color:var(--brown-title)}.hero-subcaption__rule{width:3px;flex-shrink:0;align-self:center;height:1.1rem;min-height:0;margin:0;border-radius:3px;background:var(--rust-accent);opacity:.88}.hero-subcaption__text{align-self:center;line-height:1.48;padding-top:.04em;max-width:min(22rem,85vw)}.hero-actions{align-self:flex-start;width:100%;max-width:18rem;margin-top:0;padding-bottom:0;padding-left:0;opacity:0;pointer-events:none}.hero-actions--visible{opacity:1;pointer-events:auto}.hero-actions__cluster{display:flex;flex-direction:row;flex-wrap:nowrap;align-items:center;gap:1rem}.hero-system-bridge{flex-shrink:0;height:0;margin-top:0;pointer-events:none;background:linear-gradient(180deg,#f6f1eb00,#ede7df59,#e8e2d9b8);-webkit-mask-image:linear-gradient(180deg,black 0%,black 62%,transparent 100%);mask-image:linear-gradient(180deg,black 0%,black 62%,transparent 100%)}.system-zone{position:relative;z-index:6;flex:1 1 auto;display:flex;flex-direction:column;padding:clamp(.35rem,1vh,.6rem) clamp(1.45rem,5.5vw,3.75rem) clamp(3.25rem,10vh,7.5rem);pointer-events:auto}.system-strip{width:100%;max-width:none;margin-inline:auto;flex:1 1 auto;display:flex;flex-direction:column;min-height:0}.system-strip__head{display:flex;align-items:center;justify-content:space-between;padding:.72rem clamp(.6rem,1.8vw,.9rem) .64rem;flex-shrink:0}.system-strip__label{font-family:var(--font);font-size:.47rem;font-weight:500;letter-spacing:.24em;text-transform:uppercase;color:var(--brown-title);padding-top:.12rem}.system-strip__tools{display:flex;align-items:center;gap:.48rem;pointer-events:auto}.system-strip__icon-btn{width:34px;height:34px;border:none;border-radius:50%;background:var(--cream-deep);color:var(--brown-title);box-shadow:inset 0 1px #ffffff59;display:grid;place-items:center;cursor:pointer;transition:background var(--hover-dur) var(--ease-micro),color var(--hover-dur) var(--ease-micro)}.system-strip__icon-btn:hover{background:var(--paper-panel-hover);color:var(--rust-accent)}.system-strip__icon-btn svg{display:block;opacity:.88}.system-strip__card{pointer-events:auto;position:relative;border-radius:24px 24px 0 0;border:1px solid rgba(45,37,32,.07);border-bottom:none;background:var(--cream-page);box-shadow:0 -6px 20px #30282207,0 -1px #ffffff80 inset;overflow:hidden;flex:1 1 auto;display:flex;flex-direction:column;min-height:0;padding-bottom:clamp(2rem,6vh,3.5rem)}.system-strip__card:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;z-index:0;pointer-events:none;opacity:.035;border-radius:inherit;mix-blend-mode:multiply;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='256' height='256'%3E%3Cfilter id='a'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23a)'/%3E%3C/svg%3E");background-size:220px 220px}.system-strip__card>*{position:relative;z-index:1}.system-strip__tabs-row{display:flex;align-items:flex-end;padding:.82rem clamp(.6rem,1.8vw,.9rem) .56rem;flex-shrink:0}.system-strip .segmented-tabs{display:flex;width:50%;align-items:stretch;gap:0;padding:0;border-radius:11px;overflow:hidden;background:#b09e8685;border:1px solid rgba(45,37,32,.12)}.system-strip .segmented-tabs__btn{flex:1;-webkit-appearance:none;-moz-appearance:none;appearance:none;margin:0;cursor:pointer;border:none;border-right:1px solid rgba(45,37,32,.08);border-radius:0;padding:.56rem .4rem;font-family:var(--font);font-size:.72rem;font-weight:500;letter-spacing:.01em;line-height:1.2;display:inline-flex;align-items:center;justify-content:center;gap:.32rem;background:transparent;color:#2d25207a;box-shadow:none;transition:background var(--hover-dur) var(--ease-micro),color var(--hover-dur) var(--ease-micro)}.system-strip .segmented-tabs__btn:last-child{border-right:none}.system-strip .segmented-tabs__btn:hover{color:#2d2520b8;background:var(--cream-warm)}.system-strip .segmented-tabs__btn--active{background:var(--paper-panel);color:#2d2520e0;font-weight:600}.system-strip .segmented-tabs__dot{width:5px;height:5px;border-radius:50%;background:var(--rust-accent);flex-shrink:0}.system-strip .segmented-tabs__btn:not(.segmented-tabs__btn--active) .segmented-tabs__dot{display:none}.subject-rail{list-style:none;margin:0;padding:0;display:flex;flex-wrap:nowrap;width:100%;flex-shrink:0;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:thin}.subject-rail__cell{flex:1 1 0;min-width:0;position:relative}.subject-rail__cell-wrap{position:relative;height:100%}.subject-rail__settings{position:absolute;top:.55rem;right:.55rem;z-index:2;width:26px;height:26px;display:grid;place-items:center;padding:0;border:1px solid rgba(45,37,32,.1);border-radius:8px;background:var(--paper-panel);color:#2d25208c;cursor:pointer;opacity:0;pointer-events:none;transition:opacity var(--hover-dur) var(--ease-micro),color var(--hover-dur) var(--ease-micro),border-color var(--hover-dur) var(--ease-micro),background-color var(--hover-dur) var(--ease-micro)}.subject-rail__cell-wrap:hover .subject-rail__settings,.subject-rail__settings--open,.subject-rail__settings:focus-visible{opacity:1;pointer-events:auto}.subject-rail__settings:hover,.subject-rail__settings--open{color:var(--rust-accent);border-color:#b86b5247;background:var(--paper-panel)}.subject-rail__board-menu{position:absolute;top:calc(100% - .35rem);right:.45rem;z-index:5;min-width:132px;padding:8px;border-radius:12px;border:1px solid rgba(45,37,32,.1);background:var(--paper-panel);box-shadow:0 10px 28px #3028221a}.subject-rail__board-menu-label{margin:0 0 6px;padding:0 8px;font-size:10px;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--ref-muted)}.subject-rail__board-option{width:100%;display:block;padding:8px 10px;border:none;border-radius:8px;background:transparent;font:inherit;font-size:13px;font-weight:600;text-align:left;color:var(--brown-title);cursor:pointer}.subject-rail__board-option:hover{background:#b86b5214;color:var(--rust-accent)}.subject-rail__board-option--active{background:#b86b521f;color:var(--rust-accent-deep)}@media(max-width:780px){.subject-rail{scroll-snap-type:x mandatory}.subject-rail__cell{flex:0 0 min(44vw,168px);scroll-snap-align:start}}.subject-rail__btn{width:100%;margin:0;padding:.94rem .62rem .94rem .92rem;border:none;border-right:1px solid rgba(45,37,32,.072);background:transparent;cursor:pointer;display:flex;align-items:center;gap:.62rem;text-align:left;font:inherit;color:var(--brown-title);transition:background var(--hover-dur) var(--ease-micro)}.subject-rail__cell:last-child .subject-rail__btn{border-right:none}.subject-rail__btn:hover{background:var(--cream-warm)}.subject-rail__icon-ring{flex-shrink:0;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;border:none;background:var(--cream-deep);box-shadow:inset 0 1px #ffffff47}.subject-rail__icon-ring svg{display:block}.subject-rail__icon-svg{width:17px;height:17px;display:block;color:#2d25206b}.subject-rail__main{flex:1;min-width:0;display:flex;flex-direction:column;gap:.18rem}.subject-rail__title{font-family:var(--font);font-size:.74rem;font-weight:600;line-height:1.2;letter-spacing:.01em;color:var(--brown-title)}.subject-rail__meta{font-family:var(--font);font-size:.605rem;font-weight:500;color:var(--ref-muted)}.subject-rail__chevron{flex-shrink:0;display:block;margin-inline-start:.04rem;color:#2d252061}.subject-rail--continue{margin-top:0}.subject-rail__icon-svg--plus{width:15px;height:15px;color:var(--rust-accent)}.subject-rail__meta--add{color:#2d25206b}.subject-continue{flex:1 1 auto;display:flex;flex-direction:column;min-height:clamp(10rem,22dvh,18rem);border-top:1px solid rgba(45,37,32,.065);margin-top:.35rem;padding:.2rem 0 calc(.85rem + env(safe-area-inset-bottom,0px))}.subject-continue .subject-rail{flex:0 0 auto}.app__frame{position:relative;z-index:3;width:100%;max-width:none;margin:0;min-height:calc(118dvh + clamp(2rem,8vh,5rem));box-sizing:border-box;display:flex;flex-direction:column;align-items:stretch;padding:0;overflow:visible}.app__frame:before{content:none}.app--surface .app__frame,.app--surface.app--sheet-open .app__frame{min-height:calc(118dvh + clamp(2rem,8vh,5rem))}@media(min-width:960px){.rise-panel__chrome{width:min(100% - clamp(2rem,8vw,5rem),40rem);margin-inline:auto;border-radius:24px 24px 0 0}}.editorial-hero .btn.btn--hero-primary,.editorial-hero .btn.btn--hero-secondary{border-radius:8px;min-width:149px;height:41px;padding:0 1.38rem;font-size:.64rem;font-weight:500;letter-spacing:.01em;text-transform:none}.editorial-hero .btn.btn--hero-secondary{min-width:118px}.editorial-hero .btn.btn--hero-primary:hover,.editorial-hero .btn.btn--hero-secondary:hover{transform:translateY(-.5px);filter:brightness(1.012)}.editorial-hero .btn.btn--hero-primary:active,.editorial-hero .btn.btn--hero-secondary:active{transform:translateY(0)}.editorial-hero .btn--hero-primary{background:var(--rust-accent);color:#fefdfb;border:1px solid rgba(134,68,42,.35);box-shadow:none}.editorial-hero .btn--hero-primary:hover{background:var(--rust-accent-deep);box-shadow:none}.editorial-hero .btn--hero-secondary{background:var(--paper-panel);color:var(--brown-title);border:1px solid rgba(45,37,32,.14);-webkit-backdrop-filter:none;backdrop-filter:none;box-shadow:none}.editorial-hero .btn--hero-secondary:hover{background:var(--paper-panel-hover);border-color:#2d25202e;color:var(--brown-title);box-shadow:none}@media(max-height:520px){.rise-panel--mounted{--rise-panel-top: clamp(120px, 28vh, 220px)}.rise-panel--open{top:clamp(38dvh,44dvh,48dvh)}.sheet__coming{min-height:0;padding-block:clamp(1.25rem,2vh,1.75rem)}.rise-panel__body{gap:1.25rem}}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;font:inherit;font-family:var(--font);cursor:pointer;border-radius:var(--radius-btn);padding:.62rem 1.35rem;font-weight:500;font-size:.89rem;letter-spacing:.01em;border:var(--border-ui) solid transparent;transition:background var(--hover-dur) var(--ease-micro),color var(--hover-dur) var(--ease-micro),border-color var(--hover-dur) var(--ease-micro),box-shadow var(--hover-dur) var(--ease-micro),transform var(--hover-dur) var(--ease-micro),filter var(--hover-dur) var(--ease-micro)}.btn:hover{transform:scale(1.02)}.btn:active{transform:scale(.99)}.btn--primary{background:var(--terracotta);color:#fcf9f4f5;border-color:#342c2612;box-shadow:none}.btn--primary:hover{filter:brightness(1.03);background:var(--terracotta-hover);box-shadow:none}.btn--secondary{background:var(--paper-panel);color:var(--brown-muted);border-color:#342c2612;box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none}.btn--secondary:hover{border-color:#342c2618;background:var(--paper-panel-hover);color:#342c269e}.rise-panel{--rise-panel-top: 100%;position:fixed;left:0;right:0;top:var(--rise-panel-top, 100%);bottom:calc(var(--nav-dock-footprint) - var(--sheet-overdraw));height:auto;min-height:0;padding-bottom:0;display:flex;flex-direction:column;transform:translateY(100%);transition:transform var(--panel-dur) var(--ease-panel);will-change:transform;z-index:4;pointer-events:none}.rise-panel--mounted{pointer-events:none;--rise-panel-top: clamp(180px, min(38vh, 28vw), 360px)}.rise-panel--peek{transform:translateY(100%)}.rise-panel--open{pointer-events:auto;transform:translateY(0);top:clamp(44dvh,min(50dvh,50vw),52dvh);bottom:calc(-1 * var(--sheet-overdraw))}.rise-panel__chrome{flex:1;display:flex;flex-direction:column;min-height:0;max-height:100%;background:var(--sheet-bg);border-radius:24px 24px 0 0;border:none;box-shadow:0 -8px 28px #3028220e,0 -1px #fcf9f338 inset;position:relative;overflow:hidden}.rise-panel__chrome:after{content:"";position:absolute;inset:var(--stitch-inset) var(--stitch-inset) 8px var(--stitch-inset);border:var(--border-ui) dashed var(--sheet-edge);border-radius:16px 16px 0 0;pointer-events:none;z-index:1}.rise-panel__close{position:absolute;top:calc(10px + var(--stitch-inset));right:calc(12px + var(--stitch-inset));z-index:5;width:44px;height:44px;display:grid;place-items:center;padding:0;border:1px solid rgba(56,48,42,.085);border-radius:var(--radius-pill);background:var(--sheet-surface);color:var(--sheet-text);cursor:pointer;box-shadow:none;transition:background .15s ease,color .15s ease}.rise-panel__close:hover{background:#aea593;color:var(--sheet-text)}.rise-panel__close:active{transform:none}.rise-panel__body{flex:1;min-height:0;overflow:auto;overscroll-behavior:contain;padding:var(--sheet-pad-y) var(--sheet-pad-x) clamp(1.5rem,3vh,2.5rem);display:flex;flex-direction:column;gap:clamp(1.5rem,3vh,2.25rem);color:var(--sheet-text);position:relative;z-index:2}.rise-panel__head{display:flex;align-items:flex-start;justify-content:space-between;gap:1.25rem;flex-shrink:0;padding-bottom:1rem;border-bottom:1px solid var(--sheet-edge)}.rise-panel__intent{margin:0;padding-top:.25rem;font-size:.8125rem;font-weight:500;letter-spacing:.052em;text-transform:uppercase;color:var(--sheet-muted);text-align:left;line-height:1.4;max-width:16rem}.rise-panel__content{flex:1;min-height:0;display:flex;flex-direction:column;gap:clamp(1.25rem,2.5vh,1.75rem);width:100%;max-width:var(--sheet-inner-max);margin-inline:auto}.choice-list--page .choice-list__btn--compact{padding:.45rem .75rem;font-size:.8125rem}.choice-list__icon{width:36px;height:36px;flex-shrink:0}.choice-list--page .choice-list__icon{width:28px;height:28px}.choice-list__icon.subject-icon,.choice-list__icon .subject-icon{width:100%;height:100%;display:block}.sheet__toolbar{display:flex;justify-content:flex-end;align-items:center;gap:.5rem;flex-shrink:0}.icon-btn{width:44px;height:44px;border-radius:var(--radius-pill);border:1px solid rgba(56,48,42,.085);background:var(--sheet-surface);color:var(--sheet-text);display:grid;place-items:center;cursor:pointer;box-shadow:none;transition:background .15s ease,color .15s ease}.icon-btn:hover{background:#aea593}.icon-btn:active{transform:none}.sheet__coming{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:1rem;padding:clamp(2rem,5vh,3.5rem) clamp(1.25rem,4vw,2rem);min-height:min(26vh,14rem);background:var(--panel-surface);border:2px solid rgba(245,235,224,.1);border-radius:20px;box-shadow:none}.sheet__coming-label{font-size:.75rem;font-weight:500;letter-spacing:.088em;text-transform:uppercase;color:var(--text-muted-dark)}.sheet__coming-title{margin:0;font-family:var(--font-display);font-size:clamp(1.85rem,6.5vw,2.5rem);font-weight:400;letter-spacing:.03em;text-transform:uppercase;line-height:.98;color:var(--text-on-dark)}.sheet__coming-sub{margin:0;font-size:1rem;font-weight:400;color:var(--text-muted-dark);max-width:24rem;line-height:1.6}.sheet-row{display:flex;align-items:center;gap:1.125rem;padding:1.125rem 1.25rem;border-radius:20px;background:var(--panel-surface);border:2px solid rgba(245,235,224,.1);margin-bottom:0;box-shadow:none}.sheet-row__thumb{width:48px;height:48px;border-radius:12px;background:var(--orange);border:2px solid rgba(245,235,224,.25);box-shadow:none;flex-shrink:0}.sheet-row__meta{flex:1;min-width:0}.sheet-row__name{font-weight:600;font-size:1rem;color:var(--text-on-dark)}.sheet-row__detail{font-size:.875rem;font-weight:400;color:var(--text-muted-dark);margin-top:.25rem}.subject-sheet--panel{display:flex;flex-direction:column;gap:1rem}.subject-sheet__list--text{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.5rem}.subject-sheet__item--text{padding:.65rem .85rem;border-radius:14px;background:var(--cream-warm);border:1px solid var(--sheet-edge)}.subject-sheet__item--text .subject-sheet__meta{display:flex;flex-direction:column;gap:.2rem}.subject-sheet__item--text .subject-sheet__name{font-weight:600;font-size:.95rem;color:var(--sheet-text)}.subject-sheet__item--text .subject-sheet__board{font-size:.7rem;font-weight:400;color:var(--sheet-muted)}.add-subject-btn--text{align-self:flex-start;padding:.5rem 0;border:none;background:none;font:inherit;font-family:var(--font);font-size:.9375rem;font-weight:600;color:var(--terracotta-deep);cursor:pointer;text-decoration:underline;text-underline-offset:4px}.add-subject-btn--text:hover{color:var(--terracotta)}.subject-page{position:fixed;top:0;right:0;bottom:0;left:0;z-index:10;pointer-events:none;visibility:hidden;opacity:0;transition:opacity .32s var(--ease-panel),visibility 0s linear .35s}.subject-page--open{pointer-events:auto;visibility:visible;opacity:1;transition:opacity .32s var(--ease-panel),visibility 0s linear 0s}.subject-page__bg{position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(180deg,var(--panel-fill) 0%,#0a0a0a 100%)}.subject-page__panels{position:relative;display:flex;width:200%;height:100%;transform:translate(0);transition:transform .38s var(--ease-panel)}.subject-page--boards-step .subject-page__panels{transform:translate(-50%)}.subject-page__panel{width:50%;height:100%;flex-shrink:0;overflow:auto;overscroll-behavior:contain;padding:calc(12px + env(safe-area-inset-top,0px)) clamp(1rem,4vw,1.5rem) calc(1rem + env(safe-area-inset-bottom,0px));box-sizing:border-box;display:flex;flex-direction:column;gap:.65rem;color:var(--text-on-dark)}.subject-page__header{position:relative;padding-right:2.75rem}.subject-page__close{position:absolute;top:0;right:0;width:42px;height:42px;border-radius:var(--radius-pill);border:2px solid rgba(245,235,224,.35);background:var(--dock-grey);color:var(--text-on-dark);display:grid;place-items:center;cursor:pointer}.subject-page__close:hover{background:var(--dock-grey-hover)}.subject-page__title{margin:0;font-family:var(--font-display);font-size:clamp(1.15rem,4vw,1.45rem);font-weight:400;letter-spacing:.02em;text-transform:uppercase;color:var(--text-on-dark);line-height:1.15;padding-top:.35rem}.subject-page__hint{margin:0;font-size:.8rem;color:var(--text-muted-dark)}.subject-page__back{border:none;background:none;padding:.2rem 0;margin-bottom:.15rem;font:inherit;font-size:.8125rem;font-weight:500;color:var(--orange-light);cursor:pointer;text-decoration:underline;text-underline-offset:3px}.subject-pick-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.35rem .45rem;align-content:start}.subject-pick-grid--boards{grid-template-columns:1fr}.subject-pick-grid__btn{width:100%;margin:0;padding:.38rem .6rem;border-radius:10px;border:1px solid rgba(245,235,224,.18);background:var(--panel-surface);color:var(--text-on-dark);font:inherit;font-family:var(--font);font-size:.8125rem;font-weight:500;line-height:1.25;text-align:center;cursor:pointer;transition:background .15s ease,border-color .15s ease,color .15s ease}.subject-pick-grid__btn:hover{border-color:#d98a5273;color:var(--orange-light)}.subject-pick-grid__btn--board{padding:.45rem .65rem;font-size:.8rem}.nav-dock{position:relative;left:auto;right:auto;bottom:auto;z-index:1;padding:0;pointer-events:none;opacity:0;transform:translateY(12px);transition:opacity .75s var(--ease-out-soft) .42s,transform .75s var(--ease-out-soft) .42s}.nav-dock__shell{pointer-events:none;width:100%;max-width:min(100%,24rem);margin-inline:auto}.nav-dock__bar{pointer-events:auto;display:flex;align-items:center;justify-content:space-between;gap:.65rem;width:100%;padding:.48rem .65rem .48rem .85rem;border-radius:var(--radius-pill);border:1px solid rgba(110,106,94,.085);background:var(--nav-bar-solid);backdrop-filter:none;-webkit-backdrop-filter:none;box-shadow:0 2px 12px #30282208}.nav-dock__microcopy{margin:0;flex:0 1 auto;min-width:0;max-width:6.25rem;font-family:var(--font);font-size:.5rem;font-weight:500;letter-spacing:.015em;line-height:1.15;color:var(--text-subtle);display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}.nav-dock__microcopy-body{color:inherit}.nav-dock__microcopy-punct{color:var(--black);font-weight:500}.nav-dock__tabs{display:flex;align-items:center;justify-content:center;gap:.22rem;flex:0 0 auto}.nav-dock__tab{position:relative;border:none;background:transparent;color:var(--nav-tab-muted);font:inherit;font-family:var(--font);font-size:.78rem;font-weight:500;padding:.48rem .75rem;border-radius:var(--radius-pill);cursor:pointer;display:inline-flex;align-items:center;gap:.38rem;transition:background var(--hover-dur) var(--ease-micro),color var(--hover-dur) var(--ease-micro),transform var(--hover-dur) var(--ease-micro)}.nav-dock__tab:after{content:"";position:absolute;left:50%;bottom:.28rem;width:62%;height:1px;background:var(--terracotta);opacity:0;transform:translate(-50%) scaleX(0);transform-origin:center;transition:opacity var(--hover-dur) var(--ease-micro),transform var(--hover-dur) var(--ease-micro)}.nav-dock__tab[data-active=false]:hover:after{opacity:.35;transform:translate(-50%) scaleX(1)}.nav-dock__tab[data-active=true]:after{display:none}.nav-dock__dot{width:5px;height:5px;border-radius:50%;background:currentColor;flex-shrink:0}.nav-dock__tab[data-active=true]{background:var(--terracotta);color:#fcf9f4f5;font-weight:500;box-shadow:none}.nav-dock__tab[data-active=true] .nav-dock__dot{background:var(--paper-panel)}.nav-dock__tab[data-active=false]:hover{color:var(--brown-title);background:var(--paper-panel)}.nav-dock__tools{display:flex;align-items:center;gap:.15rem;flex-shrink:0}.nav-dock__icon-btn{width:38px;height:38px;border:none;border-radius:var(--radius-pill);background:var(--cream-deep);color:var(--brown-muted);display:grid;place-items:center;cursor:pointer;transition:background var(--hover-dur) var(--ease-micro),color var(--hover-dur) var(--ease-micro),transform var(--hover-dur) var(--ease-micro),box-shadow var(--hover-dur) var(--ease-micro)}.nav-dock__icon-btn:hover{background:var(--paper-panel-hover);color:var(--brown-title);transform:scale(1.04);box-shadow:none}.stack-logo__group{stroke:none}.stack-logo__bar{transform-origin:center}@media(prefers-reduced-motion:reduce){.subject-page,.subject-page__panels{transition:none!important}.app{animation:none;opacity:1}.hero-reveal{opacity:1!important;transform:none!important;filter:none!important;transition:none!important}.btn:hover,.btn:active,.rise-panel__close:hover,.icon-btn:hover,.nav-dock__icon-btn:hover,.system-strip__icon-btn:hover{transform:none!important}.app__frame,.rise-panel{transition:none!important}.rise-panel__backdrop--visible{backdrop-filter:none!important;-webkit-backdrop-filter:none!important;background:#ede8de8c!important}.rise-panel__backdrop--deep{background:#dfd8cba6!important}.rise-panel--peek{transform:translateY(calc(100% - var(--peek)))!important}.rise-panel--open{transform:translateY(0)!important}.app__frame{min-height:150dvh!important;overflow:visible!important}.nav-dock{opacity:1!important;transform:none!important;transition:none!important}.nav-dock__tab:after{transition:none!important}}html.rd-tokens{--accent-rgb: 184, 107, 82;--sb-rgb-accent: 184, 107, 82;--orange-mid: var(--rust-accent);--orange-light: var(--rust-accent-soft);--ink: #2d2520;--ink-08: rgba(45, 37, 32, .08);--ink-30: rgba(45, 37, 32, .3);--ink-55: rgba(45, 37, 32, .55);--sheet-bg: var(--cream-deep);--sheet-surface: #eeede9;--panel-fill: #2a231e;--panel-surface: #3d342c;--panel-elevated: #4a3f36;--dock-grey: #5c534a;--dock-grey-hover: #6e6359}html.rd-tokens .rise-panel__close:hover,html.rd-tokens .icon-btn:hover{background:var(--creme-deep)}html.rd-tokens .note-study__kicker,html.rd-tokens .note-study__q-marks,html.rd-tokens .note-study__ms-head,html.rd-tokens .note-study__face-label,html.rd-tokens .quizzes__summary-kicker,html.rd-tokens .quizzes__q-kicker,html.rd-tokens .kbd-help__kicker,html.rd-tokens .error-boundary__kicker{color:var(--ink-55)}html.rd-tokens .hero-subcaption__rule{background:var(--rust-accent)}html.rd-tokens .hero-subcaption__text{color:var(--ink-55)}html.rd-tokens .kbd-help__dialog{border-color:rgba(var(--accent-rgb),.24)}html.rd-tokens .kbd-help__close:hover{background:rgba(var(--accent-rgb),.08);border-color:rgba(var(--accent-rgb),.32);color:var(--rust-accent)}html.rd-tokens .error-boundary__card{border-color:rgba(var(--accent-rgb),.32)}html.rd-tokens .error-boundary__btn{background:var(--rust-accent);border-color:var(--rust-accent-deep)}html.rd-tokens .error-boundary__btn--ghost{background:transparent;border-color:#2d252033}html.rd-tokens .cmp__hamburger span{background:var(--rust-accent-deep)}html.rd-tokens .cmp__gauge-svg path[stroke="#a05034"],html.rd-tokens .cmp__what-means-head svg path{stroke:var(--rust-accent)}html.rd-tokens .note-reader-modal__backdrop{background:#231c1680}html.rd-tokens .note-reader-modal__panel{background:var(--cream-page)}html.rd-tokens .note-reader-modal__head{background:#f6f1ebeb;border-bottom-color:#2d25201a}html.rd-tokens .note-reader-modal__title,html.rd-tokens .note-reader-modal__h,html.rd-tokens .note-reader-modal__md,html.rd-tokens .note-reader-modal__simple-md{color:var(--brown-title)}html.rd-tokens .note-reader-modal__a{color:var(--rust-accent-deep)}html.rd-tokens .note-reader-modal__close:focus-visible{outline-color:var(--rust-accent)}html.rd-tokens .note-reader-modal__simple-md blockquote.note-reader-modal__bq{border-left-color:rgba(var(--accent-rgb),.45);color:var(--brown-muted)}html.rd-tokens .note-reader-modal__img-placeholder{background:rgba(var(--accent-rgb),.06);border-color:rgba(var(--accent-rgb),.3)}html.rd-tokens .note-reader-modal__img-label{color:var(--ink-55)}html.rd-tokens .note-reader-modal__img-desc{color:var(--brown-muted)}html.rd-tokens .note-reader-modal__md pre,html.rd-tokens .note-reader-modal__simple-md pre.note-reader-modal__pre{background:#2d2520;color:#f5ebe0}html.rd-tokens .flashcards__rate-btn--again:hover{border-color:var(--rust-accent);background:rgba(var(--accent-rgb),.06);color:var(--terracotta-hover)}html.rd-moss{--moss: #5a6b4f;--moss-deep: #49573f;--moss-rgb: 90, 107, 79;--moss-soft: rgba(90, 107, 79, .14);--ink-warn: #934d30}html.rd-moss .quizzes__ms-row--checked{background:var(--moss-soft);border-color:rgba(var(--moss-rgb),.45)}html.rd-moss .quizzes__ms-row--checked .quizzes__ms-marker{background:var(--moss);border-color:var(--moss-deep)}html.rd-moss .quizzes__score strong,html.rd-moss .quizzes__summary-title strong,html.rd-moss .note-study__score strong{color:var(--moss-deep)}html.rd-moss .note-study__ms-row--checked{background:var(--moss-soft);border-color:rgba(var(--moss-rgb),.45)}html.rd-moss .note-study__ms-mark{color:var(--moss-deep)}html.rd-moss .note-study__rate-btn--again:hover{border-color:var(--ink-warn);color:var(--ink-warn);background:#934d3014}html.rd-moss .note-study__rate-btn--easy:hover{border-color:var(--moss);color:var(--moss-deep);background:var(--moss-soft)}html.rd-moss .flashcards__rate-btn--good:hover{border-color:var(--rust-accent-soft);background:#b86b5212;color:var(--rust-accent-deep)}html.rd-moss .flashcards__rate-btn--easy:hover{border-color:var(--moss);background:var(--moss-soft);color:var(--moss-deep)}html.rd-moss .rd-continue__pct{color:var(--moss-deep)}html.rd-typography{--font-display: "Cormorant Garamond", Georgia, serif}html.rd-typography .system-strip__label,html.rd-typography .hero-breadcrumb,html.rd-typography .cmp__breadcrumb,html.rd-typography .hero-subcaption{font-size:.6875rem}html.rd-typography .editorial-hero .btn.btn--hero-primary,html.rd-typography .editorial-hero .btn.btn--hero-secondary{font-size:.8125rem}html.rd-typography .quizzes__summary-title{font-size:clamp(1.9rem,1.2rem + 2vw,2.8rem);font-style:italic;line-height:1.08;letter-spacing:-.01em;font-feature-settings:"onum"}html.rd-typography .quizzes__summary-title strong{font-weight:500}html.rd-typography .note-study__summary-title{font-family:var(--font-hero),Georgia,serif;font-size:1.45rem;font-style:italic}html.rd-typography .subject-shell__mini-empty,html.rd-typography .quizzes-empty__title{font-family:var(--font-hero),Georgia,serif;font-style:italic;font-size:15px;letter-spacing:.01em}html.rd-typography .subject-shell--rd .subject-shell__reader-empty-title,html.rd-typography .subject-shell--rd .subject-shell__placeholder-title{font-family:var(--font-hero),Georgia,serif;font-style:italic}html.rd-typography .toast__msg{font-family:var(--font-hero),Georgia,serif;font-size:16.5px;font-style:italic;font-weight:500;letter-spacing:.01em}html.rd-buttons{--radius-btn: 10px;--focus-ring: 0 0 0 3px rgba(184, 107, 82, .25)}html.rd-buttons .subject-shell{--sb-radius: 10px;--sb-focus-ring: var(--focus-ring)}html.rd-buttons .editorial-hero .btn.btn--hero-primary,html.rd-buttons .editorial-hero .btn.btn--hero-secondary,html.rd-buttons .login-page__submit,html.rd-buttons .login-page__google-btn,html.rd-buttons .billing-page__subscribe-btn,html.rd-buttons .cmp__create-btn,html.rd-buttons .note-study__btn,html.rd-buttons .note-study__rate-btn,html.rd-buttons .quizzes__head-btn,html.rd-buttons .quizzes__primary-btn,html.rd-buttons .quizzes__ghost-btn,html.rd-buttons .quizzes__nav-btn,html.rd-buttons .flashcards__rate-btn,html.rd-buttons .flashcards__btn,html.rd-buttons .subject-shell__primary-btn,html.rd-buttons .subject-shell__ghost-btn,html.rd-buttons .error-boundary__btn{border-radius:10px}html.rd-buttons .btn:hover{transform:translateY(-1px)}html.rd-buttons .btn:active{transform:translateY(0)}html.rd-buttons .btn:focus-visible,html.rd-buttons .note-study__btn:focus-visible,html.rd-buttons .quizzes__primary-btn:focus-visible,html.rd-buttons .quizzes__ghost-btn:focus-visible,html.rd-buttons .quizzes__head-btn:focus-visible,html.rd-buttons .quizzes__nav-btn:focus-visible,html.rd-buttons .subject-shell__primary-btn:focus-visible,html.rd-buttons .subject-shell__ghost-btn:focus-visible,html.rd-buttons .error-boundary__btn:focus-visible{outline:none;box-shadow:var(--focus-ring)}@media(prefers-reduced-motion:no-preference){html.rd-motion .subject-shell__glyph--morph{animation:none!important;transform:none!important}html.rd-motion .subject-shell__nav-btn{position:relative}html.rd-motion .subject-shell__nav-btn:after{content:"";position:absolute;left:14px;bottom:7px;width:calc(100% - 28px);height:1.5px;border-radius:1px;background:var(--sb-accent, var(--rust-accent));opacity:.7;transform:scaleX(0);transform-origin:right center;transition:transform .26s var(--ease-micro);pointer-events:none}html.rd-motion .subject-shell__nav-btn:hover:after{transform:scaleX(1);transform-origin:left center}html.rd-motion .subject-shell__nav-btn--active:after{display:none}html.rd-motion .rd-chip:after{content:"";position:absolute;left:.95rem;right:.95rem;bottom:6px;height:1.5px;border-radius:1px;background:var(--rust-accent);opacity:.75;transform:scaleX(0);transform-origin:right center;transition:transform .26s var(--ease-micro);pointer-events:none}html.rd-motion .rd-chip:hover:after{transform:scaleX(1);transform-origin:left center}html.rd-motion .rd-sidebar__subject{position:relative}html.rd-motion .rd-sidebar__subject:after{content:"";position:absolute;left:10px;right:10px;bottom:5px;height:1.5px;border-radius:1px;background:var(--rust-accent);opacity:.75;transform:scaleX(0);transform-origin:right center;transition:transform .26s var(--ease-micro);pointer-events:none}html.rd-motion .rd-sidebar__subject:hover:after{transform:scaleX(1);transform-origin:left center}@keyframes rd-rise{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes rd-pop{0%{transform:scale(.55)}60%{transform:scale(1.14)}to{transform:scale(1)}}@keyframes rd-pop-in{0%{opacity:0;transform:translateY(6px) scale(.99)}to{opacity:1;transform:translateY(0) scale(1)}}html.rd-motion .quizzes__ms-row,html.rd-motion .note-study__ms-row{animation:rd-rise .38s var(--ease-out-soft) both}html.rd-motion .quizzes__ms-row:nth-child(2),html.rd-motion .note-study__ms-row:nth-child(2){animation-delay:.04s}html.rd-motion .quizzes__ms-row:nth-child(3),html.rd-motion .note-study__ms-row:nth-child(3){animation-delay:.08s}html.rd-motion .quizzes__ms-row:nth-child(4),html.rd-motion .note-study__ms-row:nth-child(4){animation-delay:.12s}html.rd-motion .quizzes__ms-row:nth-child(n+5),html.rd-motion .note-study__ms-row:nth-child(n+5){animation-delay:.16s}html.rd-motion .quizzes__ms-row--checked .quizzes__ms-marker{animation:rd-pop .3s var(--ease-out-soft)}html.rd-motion .quizzes__summary{animation:rd-rise .45s var(--ease-out-soft) both}html.rd-motion .note-study__card-inner,html.rd-motion .flashcards__card-inner,html.rd-motion .fc-shell__card-inner{transition:transform .55s cubic-bezier(.3,1.25,.42,1)}html.rd-motion .flashcards__card--dir-next,html.rd-motion .flashcards__card--dir-prev{animation-duration:.38s;animation-timing-function:var(--ease-out-soft)}html.rd-motion .rd-cmd__results{animation:rd-pop-in .2s var(--ease-out-soft) both}html.rd-motion .rd-cmd__result{transition:background-color .18s var(--ease-micro)}}@media(prefers-reduced-motion:reduce){html.rd-motion .subject-shell__glyph--morph,html.rd-motion .quizzes__ms-row,html.rd-motion .note-study__ms-row,html.rd-motion .quizzes__ms-row--checked .quizzes__ms-marker,html.rd-motion .quizzes__summary,html.rd-motion .rd-cmd__results,html.rd-motion .flashcards__card--dir-next,html.rd-motion .flashcards__card--dir-prev{animation:none!important}html.rd-motion .subject-shell__nav-btn:after,html.rd-motion .subject-shell__nav-btn.rd-sidebar__menu-btn:after,html.rd-motion .rd-sidebar__subject:after,html.rd-motion .rd-chip:after{transition:none!important}html.rd-motion .note-study__card-inner,html.rd-motion .flashcards__card-inner,html.rd-motion .fc-shell__card-inner{transition-duration:.01ms!important}}html.rd-home .app__frame{min-height:100dvh}html.rd-home .app.app--surface{height:100dvh;max-height:100dvh;overflow:hidden}html.rd-home .app__frame--with-sidebar,html.rd-subject-shell .app__frame--with-sidebar{min-height:100dvh;height:100dvh;max-height:100dvh;overflow:hidden;display:flex;flex-direction:column}html.rd-home .rd-shell,html.rd-subject-shell .rd-shell{flex:1;display:flex;flex-direction:column;min-height:0;max-height:100%;overflow:hidden}html.rd-subject-shell .rd-shell-chrome{flex-shrink:0;display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:44px;padding:calc(.45rem + env(safe-area-inset-top,0px)) 14px .45rem;border-bottom:1px solid var(--ink-08);background:var(--cream-page);box-sizing:border-box}html.rd-subject-shell .rd-home-layout{flex:1;display:flex;align-items:stretch;min-height:0}html.rd-home .rd-shell-chrome{flex-shrink:0;display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:44px;padding:calc(.45rem + env(safe-area-inset-top,0px)) 14px .45rem;border-bottom:1px solid var(--ink-08);background:var(--cream-page);box-sizing:border-box}.rd-shell-chrome__cluster{display:inline-flex;align-items:center;gap:2px}.rd-chrome__btn{display:inline-grid;place-items:center;width:34px;height:34px;padding:0;border:none;border-radius:8px;background:transparent;color:var(--ink-55);cursor:pointer;transition:background var(--hover-dur) var(--ease-micro),color var(--hover-dur) var(--ease-micro)}.rd-chrome__btn:hover{background:var(--ink-08);color:var(--brown-title)}.rd-chrome__btn:focus-visible{outline:2px solid var(--rust-accent);outline-offset:2px}.rd-chrome__icon{width:18px;height:18px}html.rd-home .rd-home-layout{flex:1;display:flex;align-items:stretch;min-height:0;overflow:hidden}html.rd-home .rd-home-layout--chat{flex:1;min-height:0}html.rd-home .rd-home-layout--collapsed .rd-home-main{width:100%}html.rd-home .rd-home-main{flex:1;min-width:0;min-height:0;display:flex;flex-direction:column;justify-content:flex-start;overflow-x:hidden;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;padding-top:clamp(.2rem,.6vh,.45rem)}html.rd-home .editorial-hero--sidebar{min-height:0;flex:0 1 auto;display:flex;align-items:center;justify-content:flex-start;width:100%}html.rd-home .editorial-hero--sidebar .editorial-hero__inner--centered{display:flex;flex-direction:column;align-items:center;justify-content:flex-start;width:100%;max-width:min(540px,100%);margin-inline:auto;padding:clamp(0rem,.1vh,.12rem) clamp(1.45rem,5.5vw,2rem) clamp(1.5rem,4vh,2.5rem);text-align:center}html.rd-home .rd-home-hero{width:100%;display:flex;flex-direction:column;align-items:center;gap:0;margin-top:0}html.rd-home .hero-greeting--stacked{width:100%;max-width:100%;margin:calc(-1.65rem - .8125rem - 1.2rem - 1.1rem) 0 0;margin-bottom:0;text-align:center;--hero-display-size: clamp(3.15rem, 2.25rem + 5.2vw, 6.35rem)}html.rd-home .hero-greeting--stacked .hero-greeting__slot{position:relative;display:inline-block;max-width:100%;text-align:center}html.rd-home .hero-greeting--stacked .hero-greeting__typed{position:absolute;left:0;top:0;right:0}html.rd-home .hero-greeting--stacked .hero-greeting__stack{display:inline-flex;flex-direction:column;align-items:center;gap:0}html.rd-home .hero-greeting--stacked .hero-greeting__lead{display:block;text-align:center;white-space:nowrap;line-height:.82}html.rd-home .hero-greeting--stacked .hero-greeting__pair{display:flex;flex-direction:row;align-items:baseline;justify-content:center;gap:.32em;white-space:nowrap;margin-top:-.16em;line-height:.82}html.rd-home .hero-greeting--stacked .hero-greeting__measure .hero-greeting__line,html.rd-home .hero-greeting--stacked .hero-greeting__measure .hero-greeting__signature{display:inline-block;white-space:nowrap}html.rd-home .hero-greeting--stacked .hero-greeting__line{line-height:.82}html.rd-home .hero-greeting--stacked .hero-greeting__signature{margin-top:0;line-height:.82}html.rd-home .rd-home-prompt{--prompt-gap-search: clamp(2.35rem, 5.5vh, 3.4rem);margin-top:calc(var(--prompt-gap-search) * .75);margin-bottom:var(--prompt-gap-search);padding:0;font-family:var(--font),"Inter",system-ui,sans-serif;font-size:clamp(1rem,.85rem + .45vw,1.2rem);font-style:normal;font-weight:500;line-height:1.35;letter-spacing:-.01em;color:var(--sidebar-muted)}html.rd-home .rd-cmd-zone--centered{width:100%;max-width:100%;align-items:center;margin:0}html.rd-home .rd-cmd-zone--centered .rd-cmd{width:100%}html.rd-home .editorial-hero--sidebar .editorial-hero__inner{padding-top:0;max-width:min(720px,100%)}html.rd-home .editorial-hero--sidebar .hero-greeting:not(.hero-greeting--stacked){width:min(50vw,100%)}.rd-sidebar{flex:0 0 248px;width:248px;display:flex;flex-direction:column;justify-content:space-between;min-height:0;align-self:stretch;overflow:hidden;padding:.85rem 16px calc(1rem + env(safe-area-inset-bottom,0px));border-right:1px solid var(--ink-08);background:var(--cream-page);box-sizing:border-box}.rd-sidebar__upper{flex:1;min-height:0;display:flex;flex-direction:column;overflow:hidden}.rd-sidebar__brand{flex-shrink:0;margin-bottom:.85rem}.rd-sidebar__profile--head{margin-bottom:0}.rd-sidebar__nav{flex-shrink:0;min-height:0;overflow:hidden}.rd-sidebar__subjects{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}.rd-sidebar__subject{align-items:flex-start}.rd-sidebar__subject-icon{flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;margin-top:.05rem}.rd-sidebar__subject-text{flex:1;min-width:0;display:flex;flex-direction:column;gap:.1rem}.rd-sidebar__subject-title{font-size:inherit;font-weight:inherit;line-height:1.25;color:inherit}.rd-sidebar__subject-meta{font-size:.6875rem;font-weight:500;line-height:1.2;color:var(--ink-55)}.rd-sidebar__create{flex-shrink:0;margin:.45rem 0 0}.rd-sidebar__modules{flex:1;min-height:0;overflow:hidden;display:flex;flex-direction:column;margin-top:.65rem;padding-top:.75rem;border-top:1px solid var(--ink-08)}.rd-sidebar__modules-label{margin:0 0 .45rem;padding:0 10px;font-family:var(--font-ui, var(--font));font-size:.625rem;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:#2d25206b}.rd-sidebar__modules-list{list-style:none;margin:0 0 .35rem;padding:0;display:flex;flex-direction:column;gap:2px;flex:1;min-height:0;overflow:hidden}.rd-sidebar__module{align-items:flex-start}.rd-sidebar__module--active{background:#a0503414;color:var(--brown-title)}.rd-sidebar__module-icon{flex-shrink:0;display:inline-flex;margin-top:.05rem;color:#2d252073}.rd-sidebar__module--active .rd-sidebar__module-icon{color:var(--rust-accent)}.rd-sidebar__module-text{flex:1;min-width:0;display:flex;flex-direction:column;gap:.08rem;text-align:left}.rd-sidebar__module-title{font-size:inherit;font-weight:inherit;line-height:1.25;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.rd-sidebar__module-meta{font-size:.6875rem;font-weight:500;line-height:1.2;color:var(--ink-55)}.rd-sidebar__module-create{margin:.35rem 0 0;padding:.15rem 10px;border:none;background:transparent;font-family:var(--font);font-size:.6875rem;font-weight:500;letter-spacing:.04em;color:#2d25207a;cursor:pointer;text-align:left;transition:color var(--hover-dur) var(--ease-micro)}.rd-sidebar__module-create:hover{color:var(--rust-accent-deep)}.rd-sidebar__lower{flex-shrink:0;padding-top:.75rem;border-top:1px solid var(--ink-08)}.rd-sidebar__profile{width:100%;display:flex;align-items:center;gap:.72rem;padding:.52rem 10px;border:none;border-radius:10px;background:transparent;cursor:pointer;text-align:left;font:inherit;color:var(--sidebar-muted);transition:background var(--hover-dur) var(--ease-micro),color var(--hover-dur) var(--ease-micro)}.rd-sidebar__profile:hover{background:var(--ink-08);color:var(--brown-title)}.rd-sidebar__avatar{flex-shrink:0;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:var(--rust-accent);color:#fefdfb;font-family:var(--font-hero),Georgia,serif;font-size:1.05rem;font-style:italic;font-weight:500}.rd-sidebar__profile-text{flex:1;min-width:0;display:flex;flex-direction:column;gap:.1rem}.rd-sidebar__profile-name{font-size:.8125rem;font-weight:500;color:var(--sidebar-muted);text-transform:capitalize}.rd-sidebar__profile--head:hover .rd-sidebar__profile-name{color:var(--brown-title)}.rd-sidebar__profile-sub{font-size:.6875rem;font-weight:500;color:var(--ink-55)}.rd-sidebar__menu{display:flex;flex-direction:column;gap:2px}.rd-sidebar__menu-btn{width:100%;display:flex;align-items:center;gap:.62rem;padding:.52rem 10px;border:none;border-radius:10px;background:transparent;font-family:var(--font);font-size:.8125rem;font-weight:500;color:var(--sidebar-muted);cursor:pointer;text-align:left;transition:background var(--hover-dur) var(--ease-micro),color var(--hover-dur) var(--ease-micro)}.rd-sidebar__menu-btn:hover{background:var(--ink-08);color:var(--brown-title)}.rd-sidebar__menu-btn--accent{color:var(--rust-accent-deep);font-weight:600}.rd-sidebar__menu-btn--accent:hover{color:var(--terracotta-hover)}.rd-sidebar__menu-icon{width:17px;height:17px;flex-shrink:0;color:var(--ink-55)}.rd-sidebar__menu-btn:hover .rd-sidebar__menu-icon{color:var(--brown-title)}.rd-sidebar__menu-btn--accent .rd-sidebar__menu-icon{color:var(--rust-accent)}@media(max-width:860px){html.rd-home .rd-shell{min-height:0}html.rd-home .rd-home-layout{flex-direction:column;overflow:hidden}html.rd-home .rd-home-layout--collapsed .rd-sidebar{display:none}.rd-sidebar{flex:0 0 auto;width:100%;min-height:0;overflow:hidden;border-right:none;border-bottom:1px solid var(--ink-08);padding-bottom:.85rem}.rd-sidebar__nav{overflow:hidden}.rd-sidebar__subjects{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px}.rd-sidebar__lower{display:grid;grid-template-columns:1fr 1fr;gap:.75rem;align-items:start;padding-top:.75rem}.rd-sidebar__profile{grid-column:1 / -1;margin-bottom:0}html.rd-home .rd-home-main{flex:1;min-height:0}html.rd-home .editorial-hero--sidebar .hero-greeting--stacked{width:100%}}html.rd-home .editorial-hero{min-height:0;flex:1 1 auto}html.rd-home .editorial-hero__inner{padding-bottom:clamp(2rem,6vh,3.5rem)}html.rd-home .hero-greeting:not(.hero-greeting--stacked){margin-bottom:clamp(1.4rem,4vh,2.4rem)}.rd-cmd-zone{width:min(620px,100%);display:flex;flex-direction:column;gap:1rem}.rd-cmd{position:relative;width:100%}html.rd-home .rd-cmd-zone--centered .rd-cmd__bar{background:var(--cream-deep)}html.rd-home .rd-cmd-zone--centered .rd-cmd__bar:hover{background:var(--creme-deep)}html.rd-home .rd-cmd-zone--centered .rd-cmd__bar:focus-within{background:var(--cream-deep);box-shadow:0 0 0 3px #b86b5229}.rd-cmd__bar{display:flex;align-items:center;gap:.78rem;height:56px;padding:0 .9rem 0 1.1rem;border-radius:14px;border:none;background:var(--paper-panel);box-shadow:none;transition:background var(--hover-dur) var(--ease-micro),box-shadow var(--hover-dur) var(--ease-micro)}.rd-cmd__bar:hover{background:var(--paper-panel-hover)}.rd-cmd__bar:focus-within{background:var(--cream-page);box-shadow:0 0 0 3px #b86b5229}.rd-cmd__icon{display:grid;place-items:center;flex-shrink:0;color:#2d252073}.rd-cmd__input{flex:1;min-width:0;border:none;background:transparent;font-family:var(--font);font-size:.95rem;color:var(--brown-title);outline:none;padding:0}.rd-cmd__input::placeholder{color:var(--sidebar-muted)}html.rd-typography .rd-cmd__input::placeholder{font-family:var(--font);font-style:normal;font-size:.95rem;letter-spacing:0}.rd-cmd__kbd{flex-shrink:0;padding:3px 8px;border-radius:6px;border:1px solid rgba(45,37,32,.14);background:#2d252008;font-family:ui-monospace,SF Mono,Menlo,monospace;font-size:11px;font-weight:600;color:#2d252073;-webkit-user-select:none;user-select:none}.rd-cmd__results{position:absolute;top:calc(100% + 8px);left:0;right:0;z-index:30;margin:0;padding:6px;list-style:none;border-radius:14px;border:1px solid rgba(45,37,32,.1);background:var(--cream-page);box-shadow:0 18px 44px #30282224;max-height:min(46dvh,380px);overflow-y:auto}.rd-cmd__result{width:100%;display:flex;align-items:baseline;gap:.7rem;padding:.6rem .72rem;border:none;border-radius:9px;background:transparent;cursor:pointer;text-align:left;font-family:var(--font)}.rd-cmd__result--active,.rd-cmd__result:hover{background:var(--cream-warm)}.rd-cmd__result-subject{flex-shrink:0;width:4.9rem;font-size:.625rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:#2d252073}.rd-cmd__result-title{flex:1;min-width:0;font-size:.875rem;line-height:1.35;color:var(--brown-title)}.rd-cmd__no-results{display:block;padding:.7rem .72rem;font-family:var(--font-hero),Georgia,serif;font-style:italic;font-size:.95rem;color:#2d252080}.rd-cmd__results--ai{padding:.85rem .9rem .95rem}.rd-cmd__loading{margin:0;font-family:var(--font-ui, var(--font));font-size:.875rem;color:#2d25208c}.rd-cmd__message{margin:0 0 .75rem;font-family:var(--font-ui, var(--font));font-size:.9rem;line-height:1.45;color:var(--brown-title)}.rd-cmd__error{margin:0;font-family:var(--font-ui, var(--font));font-size:.8125rem;line-height:1.45;color:#9a3b2e}.rd-cmd__actions{display:flex;flex-wrap:wrap;gap:.45rem}.rd-cmd__action{display:inline-flex;align-items:center;max-width:100%;padding:.45rem .72rem;border:1px solid rgba(45,37,32,.12);border-radius:999px;background:var(--cream-warm);cursor:pointer;font-family:var(--font-ui, var(--font));font-size:.8125rem;line-height:1.25;color:var(--brown-title);text-align:left;transition:background .15s ease,border-color .15s ease}.rd-cmd__action:hover{background:var(--cream-deep, #f3ede4);border-color:#2d252033}html.rd-home .rd-home-main--chat{flex:1;min-height:0;display:flex;flex-direction:column;overflow:hidden}html.rd-home .editorial-hero--chat{flex:1;min-height:0;align-items:stretch}html.rd-home .editorial-hero__inner--chat{flex:1;min-height:0;max-width:min(680px,100%);padding:clamp(.75rem,2vh,1.25rem) clamp(1.25rem,4.5vw,1.75rem) 0;text-align:left;align-items:stretch}html.rd-home .rd-home-hero--chat{flex:1;min-height:0;align-items:stretch}html.rd-home .rd-home-hero--chat .rd-continue{align-self:stretch;width:100%;max-width:min(680px,100%)}html.rd-home .rd-home-hero__intro--exit{opacity:0;transform:translateY(-18px) scale(.985);max-height:0;margin:0!important;overflow:hidden;pointer-events:none;transition:opacity .42s cubic-bezier(.4,0,.2,1),transform .42s cubic-bezier(.4,0,.2,1),max-height .48s cubic-bezier(.4,0,.2,1),margin .48s cubic-bezier(.4,0,.2,1)}html.rd-home .rd-cmd-zone--chat{flex:1;min-height:0;display:flex;flex-direction:column;align-items:stretch;width:100%;margin:0;animation:rdTutorZoneIn .5s cubic-bezier(.22,1,.36,1) both}@keyframes rdTutorZoneIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.rd-tutor{width:100%}.rd-tutor--landing{display:block}.rd-tutor--chat{flex:1;min-height:0;display:flex;flex-direction:column}.rd-tutor__landing,.rd-tutor__landing-bar{width:100%}.rd-tutor__scroll{flex:1;min-height:0;overflow-y:auto;overflow-x:hidden;padding-bottom:.5rem;scroll-behavior:smooth}.rd-tutor__thread{display:flex;flex-direction:column;gap:clamp(1.35rem,3vh,2rem);padding-top:.15rem}.rd-tutor-turn{display:flex;flex-direction:column;gap:.85rem;animation:rdTutorTurnIn .52s cubic-bezier(.22,1,.36,1) both;animation-delay:calc(var(--turn-i, 0) * .06s)}@keyframes rdTutorTurnIn{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}.rd-tutor-turn__user{align-self:flex-end;max-width:min(100%,540px);padding:.72rem 1rem;border-radius:18px 18px 4px;background:var(--cream-warm);border:1px solid rgba(45,37,32,.08);box-shadow:0 8px 24px #3028220f;animation:rdTutorUserIn .48s cubic-bezier(.22,1,.36,1) both}.rd-tutor-turn:first-child .rd-tutor-turn__user{animation:rdTutorUserMorph .55s cubic-bezier(.22,1,.36,1) both}@keyframes rdTutorUserMorph{0%{opacity:.85;transform:translateY(28px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes rdTutorUserIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.rd-tutor-turn__user p{margin:0;font-family:var(--font-ui, var(--font));font-size:.9375rem;line-height:1.45;color:var(--brown-title);text-align:left}.rd-tutor-turn__assistant{align-self:stretch;animation:rdTutorAssistantIn .58s cubic-bezier(.22,1,.36,1) .12s both}@keyframes rdTutorAssistantIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.rd-tutor-turn__assistant--error{display:flex;align-items:center;gap:.65rem;padding:.25rem .1rem}.rd-tutor-turn__assistant--tasks{padding:.15rem .1rem .35rem}.rd-tutor-turn__assistant--plan{padding:.2rem .05rem .35rem}.rd-plan-builder{width:100%;text-align:left}.rd-plan-builder--inline .rd-plan-builder__scroll{max-height:min(52vh,26rem);overflow-y:auto;overflow-x:hidden;padding-right:.15rem;scrollbar-width:thin}.rd-plan-builder--page .rd-plan-builder__scroll{max-width:36rem;margin:0 auto}.rd-plan-builder__section{margin-bottom:clamp(1.15rem,2.8vh,1.55rem)}.rd-plan-builder__section-head{display:flex;align-items:center;justify-content:space-between;gap:.75rem;margin-bottom:.55rem}.rd-plan-builder__label{display:flex;align-items:center;gap:.65rem;margin:0 0 .55rem;font-family:var(--font-ui, var(--font));font-size:.6875rem;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:#2d252085}.rd-plan-builder__section-head .rd-plan-builder__label{margin-bottom:0}.rd-plan-builder__label:before{content:"";width:3px;height:.95rem;border-radius:3px;background:var(--rust-accent);opacity:.85;flex-shrink:0}.rd-plan-builder__subject-chips{gap:.45rem}.rd-chip--selected{background:#a0503414;border-color:#a0503459;color:var(--brown-title)}.rd-plan-builder__link{border:none;background:none;padding:0;font-family:var(--font-ui, var(--font));font-size:.75rem;font-weight:500;color:#2d25207a;cursor:pointer;text-decoration:underline;text-decoration-color:transparent;text-underline-offset:3px;transition:color .15s ease,text-decoration-color .15s ease}.rd-plan-builder__link:hover{color:var(--rust-accent);text-decoration-color:var(--rust-accent)}.rd-plan-builder__topic-chips{display:flex;flex-wrap:wrap;gap:.4rem}.rd-plan-topic-chip{padding:.38rem .72rem;border-radius:999px;border:1px solid rgba(45,37,32,.12);background:transparent;font-family:var(--font-ui, var(--font));font-size:.8125rem;font-weight:500;line-height:1.25;color:#2d2520b8;cursor:pointer;transition:background .15s ease,border-color .15s ease,color .15s ease}.rd-plan-topic-chip:hover{background:var(--cream-warm);border-color:#2d25202e;color:var(--brown-title)}.rd-plan-topic-chip--on{background:#a0503417;border-color:#a0503452;color:var(--brown-title)}.rd-plan-builder__details{margin-bottom:clamp(1.15rem,2.8vh,1.55rem);border:none}.rd-plan-builder__summary{display:flex;align-items:center;gap:.5rem;margin-bottom:.55rem;padding:0;list-style:none;font-family:var(--font-ui, var(--font));font-size:.6875rem;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:#2d252085;cursor:pointer;-webkit-user-select:none;user-select:none}.rd-plan-builder__summary::-webkit-details-marker{display:none}.rd-plan-builder__summary:before{content:"";width:3px;height:.95rem;border-radius:3px;background:var(--rust-accent);opacity:.85;flex-shrink:0}.rd-plan-builder__summary-count{margin-left:auto;font-size:.6875rem;font-weight:500;letter-spacing:.04em;text-transform:none;color:var(--rust-accent)}.rd-plan-builder__details-body{padding-top:.35rem}.rd-plan-builder__details-body .rd-plan-builder__section-head{margin-bottom:.5rem}.rd-plan-builder__schedule{display:grid;grid-template-columns:1fr 1fr;gap:1rem 1.25rem}@media(max-width:480px){.rd-plan-builder__schedule{grid-template-columns:1fr;gap:.85rem}}.rd-plan-builder__slider-field{display:flex;flex-direction:column;gap:.45rem}.rd-plan-builder__slider-label{display:flex;align-items:baseline;justify-content:space-between;gap:.5rem;font-family:var(--font-ui, var(--font));font-size:.8125rem;font-weight:500;color:#2d25209e}.rd-plan-builder__slider-value{font-weight:600;color:var(--brown-title)}.rd-plan-builder__slider{width:100%;height:4px;margin:.35rem 0 0;-webkit-appearance:none;-moz-appearance:none;appearance:none;border-radius:999px;background:#2d25201a;cursor:pointer}.rd-plan-builder__slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:14px;height:14px;border-radius:50%;border:2px solid var(--cream-page);background:var(--rust-accent);box-shadow:0 1px 4px #2d25202e}.rd-plan-builder__slider::-moz-range-thumb{width:14px;height:14px;border-radius:50%;border:2px solid var(--cream-page);background:var(--rust-accent);box-shadow:0 1px 4px #2d25202e}.rd-plan-builder__coverage{margin-bottom:1.15rem;padding-top:.15rem}.rd-plan-builder__coverage-head{display:flex;align-items:baseline;justify-content:space-between;gap:.75rem;margin-bottom:.45rem}.rd-plan-builder__coverage-text{font-family:var(--font-ui, var(--font));font-size:.8125rem;color:#2d25208c}.rd-plan-builder__coverage-pct{font-family:var(--font-ui, var(--font));font-size:.875rem;font-weight:600;color:var(--brown-title)}.rd-plan-builder__coverage-track{height:4px;border-radius:999px;background:#2d252014;overflow:hidden}.rd-plan-builder__coverage-fill{height:100%;border-radius:inherit;background:var(--rust-accent);transition:width .35s var(--ease-out-soft, ease)}.rd-plan-builder__actions{display:flex;flex-direction:column;align-items:stretch;gap:.55rem}.rd-plan-builder__cta{width:100%;padding:.78rem 1.15rem;border:none;border-radius:14px;background:var(--brown-title);font-family:var(--font-ui, var(--font));font-size:.9375rem;font-weight:600;letter-spacing:-.01em;color:#fefdfb;cursor:pointer;transition:opacity .18s ease,transform .18s ease,background .18s ease}.rd-plan-builder__cta:disabled{opacity:.35;cursor:not-allowed}.rd-plan-builder__cta:not(:disabled):hover{transform:translateY(-1px);background:#1f1916}.rd-plan-builder__cancel-link{align-self:center;border:none;background:none;padding:.25rem .5rem;font-family:var(--font-ui, var(--font));font-size:.8125rem;font-weight:500;color:#2d252073;cursor:pointer;text-decoration:underline;text-decoration-color:transparent;text-underline-offset:3px;transition:color .15s ease,text-decoration-color .15s ease}.rd-plan-builder__cancel-link:hover{color:var(--brown-title);text-decoration-color:#2d252040}.rd-tutor-checkin{margin-top:.75rem;padding:.85rem .1rem .25rem;text-align:left}.rd-tutor-checkin__prompt{margin:0 0 .65rem;font-family:var(--font-ui, var(--font));font-size:.9375rem;line-height:1.45;color:var(--brown-title)}.rd-tutor-checkin__chips{display:flex;flex-wrap:wrap;gap:.45rem}.rd-tutor-checkin__chip{padding:.45rem .85rem;border-radius:999px;border:1px solid rgba(45,37,32,.14);background:var(--cream-page);font-family:var(--font-ui, var(--font));font-size:.8125rem;color:var(--brown-title);cursor:pointer;transition:border-color .15s ease,background .15s ease}.rd-tutor-checkin__chip:hover{border-color:var(--rust-accent);background:#a050340f}.rd-plan-pill{position:fixed;bottom:1.25rem;right:1.25rem;z-index:40;display:inline-flex;align-items:center;gap:.5rem;padding:.5rem .85rem;border-radius:999px;border:1px solid rgba(45,37,32,.12);background:#fefdfbf0;box-shadow:0 4px 20px #2d252014;font-family:var(--font-ui, var(--font));font-size:.8125rem;color:var(--brown-title);cursor:pointer;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.rd-plan-pill:hover{border-color:var(--rust-accent)}.rd-plan-pill__label{font-weight:600;color:var(--rust-accent)}.rd-plan-pill__step{opacity:.75}.rd-plan-pill__pct{font-weight:600}html.rd-home .rd-continue{opacity:1}.rd-tutor-tasks{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.55rem}.rd-tutor-task{display:flex;align-items:center;gap:.65rem;font-family:var(--font-ui, var(--font));font-size:.8125rem;line-height:1.35;color:#2d25206b;transition:color .22s ease}.rd-tutor-task--active{color:var(--brown-title)}.rd-tutor-task--done{color:var(--sidebar-muted)}.rd-tutor-task__label{text-align:left}.rd-tutor-task__box{position:relative;flex-shrink:0;width:18px;height:18px;border-radius:5px;border:1.5px solid rgba(45,37,32,.14);background:var(--cream-page);box-sizing:border-box}.rd-tutor-task__box--active{border-color:transparent;background:transparent}.rd-tutor-task__box--done{border-color:var(--rust-accent);background:var(--rust-accent)}.rd-tutor-task__ring{position:absolute;top:-1px;right:-1px;bottom:-1px;left:-1px;width:calc(100% + 2px);height:calc(100% + 2px);color:var(--rust-accent);animation:rdTutorTaskRing var(--task-spin-ms, .85s) linear infinite}.rd-tutor-task__ring circle{stroke-dasharray:34;stroke-dashoffset:26}@keyframes rdTutorTaskRing{to{transform:rotate(360deg)}}.rd-tutor-task__check{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;color:#fefdfb;animation:rdTutorTaskCheck .28s cubic-bezier(.22,1,.36,1) both}@keyframes rdTutorTaskCheck{0%{opacity:0;transform:scale(.72)}to{opacity:1;transform:scale(1)}}.rd-tutor-turn__assistant--error p{margin:0;font-family:var(--font-ui, var(--font));font-size:.875rem;line-height:1.45;color:#9a3b2e}.rd-tutor-turn__message--typing{display:block;width:100%;text-align:left}.rd-tutor-turn__cursor{display:inline-block;width:2px;height:.95em;margin-left:1px;vertical-align:-.08em;border-radius:1px;background:var(--rust-accent);animation:rdTutorCursor .85s step-end infinite}@keyframes rdTutorCursor{0%,to{opacity:1}50%{opacity:0}}.rd-tutor-turn__message{margin:0 0 1.15rem;font-family:var(--font-ui, var(--font));font-size:clamp(.9375rem,.88rem + .2vw,1.0625rem);line-height:1.62;letter-spacing:-.01em;color:var(--brown-title);text-align:left}.rd-tutor-resources__label{margin:0 0 .65rem;font-family:var(--font-ui, var(--font));font-size:.6875rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:#2d252073;text-align:left}.rd-tutor-resources__grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,220px),1fr));gap:.55rem}.rd-tutor-resource{position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:.35rem;width:100%;min-height:88px;padding:.78rem 2.1rem .78rem .85rem;border:1px solid rgba(45,37,32,.1);border-radius:14px;background:var(--cream-page);cursor:pointer;text-align:left;transition:background .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease}.rd-tutor-resource:hover{background:var(--cream-warm);border-color:#2d252029;transform:translateY(-1px);box-shadow:0 10px 28px #30282214}.rd-tutor-resource__meta{display:flex;flex-wrap:wrap;align-items:center;gap:.35rem .5rem}.rd-tutor-resource__subject{font-family:var(--font-ui, var(--font));font-size:.625rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:#2d25207a}.rd-tutor-resource__type{font-family:var(--font-ui, var(--font));font-size:.625rem;font-weight:500;color:var(--rust-accent)}.rd-tutor-resource__title{font-family:var(--font-ui, var(--font));font-size:.875rem;font-weight:500;line-height:1.35;color:var(--brown-title)}.rd-tutor-resource__arrow{position:absolute;right:.72rem;top:50%;transform:translateY(-50%);color:#2d252059;transition:transform .18s ease,color .18s ease}.rd-tutor-resource:hover .rd-tutor-resource__arrow{transform:translate(2px,-50%);color:var(--rust-accent)}.rd-tutor__composer{flex-shrink:0;margin-top:auto;padding:.85rem 0 calc(.85rem + env(safe-area-inset-bottom,0px));border-top:1px solid var(--ink-08);background:linear-gradient(to top,var(--cream-page) 78%,transparent);animation:rdTutorComposerIn .46s cubic-bezier(.22,1,.36,1) .18s both}@keyframes rdTutorComposerIn{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.rd-tutor__composer-label{display:block;margin-bottom:.45rem;font-family:var(--font-ui, var(--font));font-size:.6875rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:#2d25206b;text-align:left}.rd-tutor__composer-row{display:flex;align-items:flex-end;gap:.55rem}.rd-tutor__composer-input{flex:1;min-width:0;min-height:46px;max-height:120px;resize:none;padding:.72rem .95rem;border:1px solid rgba(45,37,32,.12);border-radius:14px;background:var(--cream-warm);font-family:var(--font-ui, var(--font));font-size:.9375rem;line-height:1.45;color:var(--brown-title);transition:border-color .18s ease,box-shadow .18s ease,background .18s ease}.rd-tutor__composer-input::placeholder{color:#2d25206b}.rd-tutor__composer-input:focus{outline:none;border-color:#2d252038;background:var(--cream-page);box-shadow:0 0 0 3px #2d25200f}.rd-tutor__composer-send{flex-shrink:0;width:46px;height:46px;display:grid;place-items:center;border:none;border-radius:14px;background:var(--brown-title);color:#fefdfb;cursor:pointer;transition:opacity .18s ease,transform .18s ease,background .18s ease}.rd-tutor__composer-send:disabled{opacity:.35;cursor:not-allowed}.rd-tutor__composer-send:not(:disabled):hover{transform:translateY(-1px);background:#1f1916}@media(prefers-reduced-motion:reduce){html.rd-home .rd-home-hero__intro--exit,html.rd-home .rd-cmd-zone--chat,.rd-tutor-turn,.rd-tutor-turn__user,.rd-tutor-turn__assistant,.rd-tutor__composer,.rd-tutor-task__ring,.rd-tutor-task__check,.rd-tutor-turn__cursor{animation:none!important;transition:none!important}}.rd-chips{display:flex;flex-wrap:wrap;gap:.5rem}.rd-chip{position:relative;display:inline-flex;align-items:center;gap:.5rem;height:38px;padding:0 .95rem 0 .8rem;border-radius:999px;border:1px solid rgba(45,37,32,.13);background:transparent;color:var(--brown-title);font-family:var(--font);font-size:.8125rem;font-weight:600;letter-spacing:.01em;cursor:pointer;transition:background var(--hover-dur) var(--ease-micro),border-color var(--hover-dur) var(--ease-micro)}.rd-chip:hover{background:var(--cream-warm);border-color:#2d252033}.rd-chip__icon{display:grid;place-items:center;flex-shrink:0}.rd-chip .subject-rail__icon-svg{width:15px;height:15px;color:#2d252080}.rd-chip__count{font-size:.6875rem;font-weight:500;color:#2d252073}.rd-quiet-links{display:flex;align-items:center;flex-wrap:wrap;gap:1.15rem;margin-top:.3rem}.rd-quiet-link{border:none;background:none;padding:0;font-family:var(--font);font-size:.78rem;font-weight:500;color:#2d25208c;cursor:pointer;text-decoration:underline;text-decoration-color:transparent;text-decoration-thickness:1px;text-underline-offset:4px;transition:color var(--hover-dur) var(--ease-micro),text-decoration-color var(--hover-dur) var(--ease-micro)}.rd-quiet-link:hover{color:var(--brown-title);text-decoration-color:var(--rust-accent)}.rd-continue{width:min(620px,100%);margin-top:clamp(1.7rem,4.5vh,2.8rem)}.rd-continue__label{display:flex;align-items:center;gap:.7rem;margin:0 0 .45rem;font-family:var(--font);font-size:.6875rem;font-weight:600;letter-spacing:.24em;text-transform:uppercase;color:#2d25208c}.rd-continue__label:before{content:"";width:3px;height:1rem;border-radius:3px;background:var(--rust-accent);opacity:.88;flex-shrink:0}.rd-continue__list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}.rd-continue__row{width:100%;display:flex;align-items:center;gap:.85rem;padding:.72rem .4rem;border:none;border-top:1px solid rgba(45,37,32,.08);background:transparent;cursor:pointer;text-align:left;font-family:var(--font);border-radius:8px;transition:background var(--hover-dur) var(--ease-micro)}.rd-continue__row:hover{background:var(--cream-warm)}.rd-continue__row--active{background:#c45c3e0f}.rd-continue__create{margin-top:.35rem;padding:.15rem .4rem;border:none;background:transparent;font-family:var(--font);font-size:.6875rem;font-weight:500;letter-spacing:.04em;color:#2d25207a;cursor:pointer;text-align:left;transition:color var(--hover-dur) var(--ease-micro)}.rd-continue__create:hover{color:var(--rust-accent-deep)}.rd-continue__subject{flex-shrink:0;width:4.9rem;font-size:.625rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:#2d252073}.rd-continue__title{flex:1;min-width:0;font-size:.875rem;font-weight:500;color:var(--brown-title);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.rd-continue__pct{flex-shrink:0;font-size:.6875rem;font-weight:600;color:var(--rust-accent-deep)}@media(max-width:720px){.rd-cmd__kbd{display:none}.rd-cmd__result-subject,.rd-continue__subject{width:3.6rem}}html.rd-subject-layout .subject-shell{--sb-col-sidebar: 244px;--sb-col-mid: 330px;--sb-pad-x: 20px}html.rd-subject-layout .subject-shell__sidebar,html.rd-subject-layout .subject-shell__progress-block{width:100%}@media(max-width:1280px){html.rd-subject-layout .subject-shell{--sb-col-sidebar: 228px;--sb-col-mid: 300px}}html.rd-subject-shell .subject-shell--rd{display:flex;flex-direction:column;row-gap:0}html.rd-subject-shell .subject-shell--rd .subject-shell__chrome,html.rd-subject-shell .subject-shell--rd .subject-shell__workspace{flex:1;min-height:0}html.rd-subject-shell .subject-shell--rd .subject-shell__sidebar{border-right-color:var(--ink-08);transition:opacity .28s cubic-bezier(.4,0,.2,1),transform .28s cubic-bezier(.4,0,.2,1)}html.rd-subject-shell .subject-shell--rd .subject-shell__back-round{display:none}html.rd-subject-shell .subject-shell--rd{--sb-divider-col: var(--ink-08);--sb-border: var(--ink-08);--sb-shell-outline: var(--ink-08);--sb-section-mid: var(--ink-08);--sb-text-label: rgba(45, 37, 32, .45);--sb-text-faint: rgba(45, 37, 32, .42);--sb-text-secondary: var(--sidebar-muted);--sb-hover-surface: var(--ink-08);--sb-pressed-surface: rgba(45, 37, 32, .12);--sb-strong-hover-surface: rgba(45, 37, 32, .1);--sb-focus-ring: 0 0 0 3px rgba(184, 107, 82, .16);--sb-nav-active: var(--cream-warm);--sb-note-active: var(--cream-warm);--sb-panel: var(--cream-warm);--sb-panel-2: var(--cream-deep);--sb-tag-pill: var(--cream-warm);--sb-label-tracking: .14em;font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:15px;background-color:var(--cream-page);color:var(--brown-title)}html.rd-subject-shell .subject-shell--rd .subject-shell__chrome,html.rd-subject-shell .subject-shell--rd .subject-shell__workspace{background:var(--cream-page)}html.rd-subject-shell .subject-shell--rd .subject-shell__chrome:before,html.rd-subject-shell .subject-shell--rd .subject-shell__workspace:before{display:none}html.rd-subject-shell .subject-shell--rd .subject-shell__sidebar,html.rd-subject-shell .subject-shell--rd .subject-shell__topics,html.rd-subject-shell .subject-shell--rd .subject-shell__reader{background:var(--cream-page);border-right-color:var(--ink-08)}html.rd-subject-shell .subject-shell--rd .subject-shell__title-block:before{background:var(--ink-08);opacity:1;height:3px}html.rd-subject-shell .subject-shell--rd .subject-shell__tagline{font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:.875rem;font-weight:500;color:var(--sidebar-muted);line-height:1.45}html.rd-subject-shell .subject-shell--rd .subject-shell__glyph{color:var(--ink-55)}html.rd-subject-shell .subject-shell--rd .subject-shell__progress-label{font-size:.8125rem;font-weight:500;color:var(--sidebar-muted)}html.rd-subject-shell .subject-shell--rd .subject-shell__nav-btn{color:var(--sidebar-muted);border-radius:10px;font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:.8125rem;font-weight:500}html.rd-subject-shell .subject-shell--rd .subject-shell__nav-btn:hover:not(.subject-shell__nav-btn--active){background:var(--ink-08);color:var(--brown-title)}html.rd-subject-shell .subject-shell--rd .subject-shell__nav-btn--active,html.rd-subject-shell .subject-shell--rd .subject-shell__nav-btn--active:hover{background:var(--cream-warm);color:var(--rust-accent-deep)}html.rd-subject-shell .subject-shell--rd .subject-shell__nav-btn--active .subject-shell__nav-btn-icon svg{color:var(--rust-accent)}html.rd-subject-shell .subject-shell--rd .subject-shell__mini-heading,html.rd-subject-shell .subject-shell--rd .subject-shell__topics-heading{color:#2d252073;font-size:.6875rem;font-weight:600;letter-spacing:.14em}html.rd-subject-shell .subject-shell--rd .subject-shell__mini-empty{color:var(--sidebar-muted);font-size:.8125rem}html.rd-subject-shell .subject-shell--rd .subject-shell__mini-row{color:var(--sidebar-muted);font-size:.8125rem;border-radius:10px}html.rd-subject-shell .subject-shell--rd .subject-shell__mini-row:hover{background:var(--ink-08);color:var(--brown-title)}html.rd-subject-shell .subject-shell--rd .subject-shell__mini-row:hover svg{color:var(--ink-55)}html.rd-subject-shell .subject-shell--rd .subject-shell__sidebar-search,html.rd-subject-shell .subject-shell--rd .subject-shell__topics-search input,html.rd-subject-shell .subject-shell--rd .subject-shell__filter-btn{border:none;background:var(--cream-deep);box-shadow:none;border-radius:14px}html.rd-subject-shell .subject-shell--rd .subject-shell__sidebar-search:focus-within,html.rd-subject-shell .subject-shell--rd .subject-shell__topics-search input:focus{background:var(--cream-deep);border-color:transparent;box-shadow:0 0 0 3px #b86b5229}html.rd-subject-shell .subject-shell--rd .subject-shell__topics-search input:hover:not(:focus),html.rd-subject-shell .subject-shell--rd .subject-shell__filter-btn:hover{background:var(--cream-deep);color:var(--brown-title);border-color:transparent}html.rd-subject-shell .subject-shell--rd .subject-shell__sidebar-search input::placeholder,html.rd-subject-shell .subject-shell--rd .subject-shell__topics-search input::placeholder{color:#2d25206b}html.rd-subject-shell .subject-shell--rd .subject-shell__settings{color:var(--sidebar-muted);border-radius:10px}html.rd-subject-shell .subject-shell--rd .subject-shell__settings:hover{background:var(--ink-08);color:var(--brown-title)}html.rd-subject-shell .subject-shell--rd .subject-shell__settings:hover>svg,html.rd-subject-shell .subject-shell--rd .subject-shell__settings:hover .subject-shell__settings-chev{color:var(--ink-55)}html.rd-subject-shell .subject-shell--rd .subject-shell__topics-manage{background:var(--cream-warm);border-color:var(--ink-08);color:var(--sidebar-muted);font-size:.8125rem;font-weight:500}html.rd-subject-shell .subject-shell--rd .subject-shell__topics-manage:hover{background:var(--ink-08);border-color:var(--ink-08);color:var(--brown-title)}html.rd-subject-shell .subject-shell--rd .subject-shell__topics-foot{border-top-color:var(--ink-08)}html.rd-subject-shell .subject-shell--rd .subject-shell__acc-trigger{color:var(--brown-title);font-size:.875rem;font-weight:500;border-radius:10px}html.rd-subject-shell .subject-shell--rd .subject-shell__acc-trigger:hover{background:var(--ink-08);color:var(--brown-title)}html.rd-subject-shell .subject-shell--rd .subject-shell__acc-trigger:hover .subject-shell__acc-chev-text{color:var(--ink-55)}html.rd-subject-shell .subject-shell--rd .subject-shell__note-pill{color:var(--sidebar-muted);border-radius:10px;font-size:.8125rem}html.rd-subject-shell .subject-shell--rd .subject-shell__note-pill-left>svg{color:var(--ink-55)}html.rd-subject-shell .subject-shell--rd .subject-shell__note-pill:hover:not(.subject-shell__note-pill--active){background:var(--ink-08);color:var(--brown-title)}html.rd-subject-shell .subject-shell--rd .subject-shell__note-pill:hover:not(.subject-shell__note-pill--active) .subject-shell__note-pill-left>svg{color:var(--ink-55)}html.rd-subject-shell .subject-shell--rd .subject-shell__note-pill--active,html.rd-subject-shell .subject-shell--rd .subject-shell__note-pill--active:hover{background:var(--cream-warm);color:var(--brown-title);box-shadow:none}html.rd-subject-shell .subject-shell--rd .subject-shell__note-pill--active:hover .subject-shell__note-pill-left>svg{color:var(--ink-55)}html.rd-subject-shell .subject-shell--rd .subject-shell__empty{background:var(--cream-warm);border-color:var(--ink-08);color:var(--sidebar-muted)}html.rd-subject-shell .subject-shell--rd .subject-shell__reader-empty-sub,html.rd-subject-shell .subject-shell--rd .subject-shell__placeholder-sub{color:var(--sidebar-muted);font-size:.9375rem}html.rd-subject-shell .subject-shell--rd .subject-shell__stat-chip,html.rd-subject-shell .subject-shell--rd .subject-shell__tag{background:var(--cream-warm);border-color:var(--ink-08);color:var(--sidebar-muted)}html.rd-subject-shell .subject-shell--rd .subject-shell__primary-btn{background:var(--brown-title);border-color:var(--brown-title);color:#fefdfb}html.rd-subject-shell .subject-shell--rd .subject-shell__primary-btn:hover{background:#1f1916;border-color:#1f1916}html.rd-subject-shell .subject-shell--rd .subject-shell__ghost-btn{background:transparent;border-color:var(--ink-08);color:var(--sidebar-muted)}html.rd-subject-shell .subject-shell--rd .subject-shell__ghost-btn:hover{background:var(--ink-08);color:var(--brown-title);border-color:var(--ink-08)}html.rd-subject-shell .subject-shell--rd .subject-shell__title{font-family:var(--font-hero),Georgia,serif;font-size:clamp(1.75rem,1.15rem + 1.4vw,2.35rem);font-weight:400;line-height:.95;letter-spacing:-.02em;color:var(--brown-title)}html.rd-subject-shell .subject-shell--rd .subject-shell__crumbs{font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:.6875rem;font-weight:600;letter-spacing:.14em;color:#2d252073}html.rd-subject-shell .subject-shell--rd .subject-shell__crumb--current{color:var(--sidebar-muted);font-weight:600}html.rd-subject-shell .subject-shell--rd .subject-shell__pin-pill{font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:.8125rem;font-weight:500;color:var(--sidebar-muted)}html.rd-subject-shell .subject-shell--rd .subject-shell__pin-pill:hover,html.rd-subject-shell .subject-shell--rd .subject-shell__pin-pill--on{color:var(--brown-title);border-color:var(--ink-08)}html.rd-subject-shell .subject-shell--rd .subject-shell__category-badge{min-height:28px;padding:0 10px;border:1px solid var(--ink-08);background:var(--cream-warm);color:#2d252073;font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:.6875rem;font-weight:600;letter-spacing:.14em}html.rd-subject-shell .subject-shell--rd .subject-shell__spec-chip{min-height:28px;font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:.6875rem;font-weight:500;letter-spacing:.04em;color:var(--sidebar-muted)}html.rd-subject-shell .subject-shell--rd .subject-shell__article-title{margin-top:1rem;font-size:clamp(1.85rem,1.25rem + 1.6vw,2.65rem);line-height:1.02;letter-spacing:-.02em;color:var(--brown-title)}html.rd-subject-shell .subject-shell--rd .subject-shell__meta-item{font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:.6875rem;font-weight:500;letter-spacing:.06em;text-transform:uppercase;color:var(--sidebar-muted);line-height:1.4}html.rd-subject-shell .subject-shell--rd .subject-shell__rule--meta,html.rd-subject-shell .subject-shell--rd .subject-shell__rule--mid{background:var(--ink-08)}html.rd-subject-shell .subject-shell--rd .subject-shell__md .note-reader-modal__simple-md{font-family:var(--font-ui, var(--font)),system-ui,sans-serif}html.rd-subject-shell .subject-shell--rd .subject-shell__md .note-reader-modal__h{height:auto;margin-top:1.65rem;font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:1.0625rem;font-weight:600;line-height:1.35;letter-spacing:-.01em;color:var(--brown-title)}html.rd-subject-shell .subject-shell--rd .subject-shell__md .note-reader-modal__h:first-child{margin-top:1.25rem}html.rd-subject-shell .subject-shell--rd .subject-shell__md .note-reader-modal__p,html.rd-subject-shell .subject-shell--rd .subject-shell__md .note-reader-modal__ul li,html.rd-subject-shell .subject-shell--rd .subject-shell__md .note-reader-modal__ol li{font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:.9375rem;line-height:1.62;color:var(--brown-title)}html.rd-subject-shell .subject-shell--rd .subject-shell__md .note-reader-modal__p{margin-top:1rem}html.rd-subject-shell .subject-shell--rd .subject-shell__md .note-reader-modal__ul,html.rd-subject-shell .subject-shell--rd .subject-shell__md .note-reader-modal__ol{gap:.55rem}html.rd-subject-shell .subject-shell--rd .subject-shell__md .note-reader-modal__bq{border-left-color:var(--ink-08);background:var(--cream-warm);font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:.9375rem;line-height:1.62;color:var(--brown-title)}html.rd-subject-shell .subject-shell--rd .subject-shell__md .note-reader-modal__pre code{font-size:.875rem}html.rd-subject-shell .subject-shell--rd .subject-shell__md .note-reader-modal__table{font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:.875rem}html.rd-subject-shell .subject-shell--rd .subject-shell__preview-head{margin-top:1.65rem;font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:.6875rem;font-weight:600;font-style:normal;letter-spacing:.14em;text-transform:uppercase;color:#2d252073}html.rd-subject-shell .subject-shell--rd .subject-shell__preview-overview,html.rd-subject-shell .subject-shell--rd .subject-shell__preview-list{font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:.9375rem;line-height:1.62;color:var(--brown-title)}html.rd-subject-shell .subject-shell--rd .subject-shell__preview-list li::marker{color:var(--ink-55)}html.rd-subject-shell .subject-shell--rd .subject-shell__board-overlay{border-color:var(--ink-08);background:var(--cream-warm)}html.rd-subject-shell .subject-shell--rd .subject-shell__board-overlay-kicker{font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:.6875rem;font-weight:600;letter-spacing:.14em;color:#2d252073}html.rd-subject-shell .subject-shell--rd .subject-shell__board-overlay-body{font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:.9375rem;line-height:1.62;color:var(--brown-title)}html.rd-subject-shell .subject-shell--rd .subject-shell__reader-empty-title,html.rd-subject-shell .subject-shell--rd .subject-shell__placeholder-title{font-family:var(--font-hero),Georgia,serif;font-size:clamp(1.65rem,1.15rem + 1.1vw,2.15rem);font-style:italic;font-weight:400;line-height:1.08;letter-spacing:-.01em;color:var(--brown-title)}html.rd-subject-shell .subject-shell--rd .subject-shell__continue-head{font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:.6875rem;font-weight:600;letter-spacing:.14em;color:#2d252073;height:auto;line-height:1.3}html.rd-subject-shell .subject-shell--rd .subject-shell__continue-card h3{font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:.9375rem;font-weight:600;color:var(--brown-title)}html.rd-subject-shell .subject-shell--rd .subject-shell__continue-card p{font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:.8125rem;line-height:1.45;color:var(--sidebar-muted)}html.rd-subject-shell .subject-shell--rd .subject-shell__continue-card:hover h3{color:var(--brown-title)}html.rd-subject-shell .subject-shell--rd .subject-shell__continue-card svg{color:var(--ink-55)}html.rd-subject-shell .subject-shell--rd .subject-shell__more-item{font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:.8125rem;color:var(--sidebar-muted)}html.rd-subject-shell .subject-shell--rd .subject-shell__more-item:hover{background:var(--ink-08);color:var(--brown-title)}html.rd-subject-shell .subject-shell--rd{position:relative;inset:auto;z-index:auto;width:100%;flex:1;min-height:0;max-height:100%;overflow:hidden;animation:none;--sb-col-sidebar: 248px;--sb-col-mid: min(340px, 34vw)}html.rd-subject-shell .subject-shell--rd .rd-subject-sidebar{flex:0 0 248px;width:248px;min-height:0;align-self:stretch;overflow:hidden;padding:.85rem 16px calc(1rem + env(safe-area-inset-bottom,0px));border-right:1px solid var(--ink-08);background:var(--cream-page);box-sizing:border-box}html.rd-subject-shell .subject-shell--rd .rd-subject-main{flex:1;min-width:0;min-height:0;display:flex;flex-direction:column;overflow:hidden}html.rd-subject-shell .subject-shell--rd .subject-shell__workspace{position:relative;z-index:1;flex:1;width:100%;height:100%;min-height:0;box-sizing:border-box;display:grid;grid-template-columns:var(--sb-col-mid) minmax(0,1fr);grid-template-rows:minmax(0,1fr);align-items:stretch;overflow:hidden;border:none;border-radius:0;background:var(--cream-page)}html.rd-subject-shell .subject-shell--rd .subject-shell__workspace:before{display:none}html.rd-subject-shell .subject-shell--rd .subject-shell__workspace.subject-shell__chrome--flashcards{grid-template-columns:var(--sb-col-mid) minmax(0,1fr)}html.rd-subject-shell .subject-shell--rd .subject-shell__workspace.subject-shell__chrome--mode-placeholder{grid-template-columns:minmax(0,1fr)}html.rd-home .subject-shell--rd .subject-shell__workspace.subject-shell__chrome--mode-placeholder .subject-shell__reader{grid-column:1 / -1}html.rd-subject-shell .subject-shell--rd .subject-shell__topics{width:100%;padding:clamp(.75rem,1.5vh,1rem) clamp(1rem,2.5vw,1.35rem)}html.rd-subject-shell .subject-shell--rd .subject-shell__reader-scroll{padding:clamp(.75rem,1.5vh,1rem) clamp(1.45rem,5.5vw,2rem) clamp(1.5rem,3vh,2.25rem)}html.rd-subject-shell .rd-home-layout--collapsed .rd-subject-main{width:100%}@media(max-width:1279px){html.rd-subject-shell .subject-shell--rd{--sb-col-mid: min(300px, 38vw)}}@media(max-width:860px){html.rd-subject-shell .subject-shell--rd .rd-subject-sidebar{flex:0 0 auto;width:100%;border-right:none;border-bottom:1px solid var(--ink-08)}html.rd-subject-shell .subject-shell--rd .subject-shell__workspace{grid-template-columns:minmax(0,1fr);grid-template-rows:auto minmax(0,1fr)}html.rd-subject-shell .subject-shell--rd .subject-shell__workspace.subject-shell__chrome--flashcards{grid-template-rows:auto minmax(0,1fr)}}html.rd-subject-shell .subject-shell--rd .rd-subject-sidebar .subject-shell__brand{margin-bottom:.15rem}html.rd-subject-shell .subject-shell--rd .rd-subject-sidebar .subject-shell__brand-top{margin-bottom:.55rem}html.rd-subject-shell .subject-shell--rd .rd-subject-sidebar .subject-shell__glyph{width:28px;height:28px;color:var(--rust-accent-deep)}html.rd-subject-shell .subject-shell--rd .rd-subject-sidebar .subject-shell__glyph svg{width:18px;height:18px;color:var(--rust-accent)}html.rd-subject-shell .subject-shell--rd .rd-subject-sidebar .subject-shell__title-block:before{display:block;width:20px;height:3px;border-radius:2px;background:var(--rust-accent-deep);opacity:.92;margin-bottom:.4rem}html.rd-subject-shell .subject-shell--rd .rd-subject-sidebar .subject-shell__title{font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:1.0625rem;font-weight:600;line-height:1.25;letter-spacing:-.01em}html.rd-subject-shell .subject-shell--rd .rd-subject-sidebar .subject-shell__tagline{margin-top:.2rem;font-size:.75rem;line-height:1.35}html.rd-subject-shell .subject-shell--rd .rd-subject-sidebar .subject-shell__sidebar-foot{padding-top:.65rem;gap:.35rem}html.rd-subject-shell .subject-shell--rd .rd-subject-nav{margin-top:.85rem;gap:2px}html.rd-subject-shell .subject-shell--rd .subject-shell__nav-btn.rd-sidebar__menu-btn{height:auto;min-height:0;padding:.52rem 10px;gap:.62rem;font-size:.8125rem;font-weight:500}html.rd-subject-shell .subject-shell--rd .subject-shell__mini-list ul{gap:2px}html.rd-subject-shell .subject-shell--rd .subject-shell__mini-row.rd-sidebar__menu-btn{height:auto;min-height:0;padding:.52rem 10px;gap:.55rem;border-radius:10px}html.rd-subject-shell .subject-shell--rd .subject-shell__mini-row.rd-sidebar__menu-btn svg{width:15px;height:15px;flex-shrink:0;color:var(--ink-55)}html.rd-subject-shell .subject-shell--rd .subject-shell__settings.rd-sidebar__menu-btn{width:100%;height:auto;min-height:0;margin-top:.15rem;padding:.52rem 10px;gap:.62rem;justify-content:flex-start;border:none;background:transparent;font-size:.8125rem;font-weight:500}html.rd-subject-shell .subject-shell--rd .subject-shell__settings.rd-sidebar__menu-btn>svg{width:17px;height:17px;color:var(--ink-55)}html.rd-subject-shell .subject-shell--rd .subject-shell__sidebar-search.rd-cmd__bar{height:44px;padding:0 .72rem 0 .85rem;gap:.55rem;border:none}html.rd-subject-shell .subject-shell--rd .subject-shell__sidebar-search .rd-cmd__input{font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:.8125rem;font-weight:500}html.rd-subject-shell .subject-shell--rd .subject-shell__sidebar-search .rd-cmd__kbd{font-size:10px;padding:2px 6px}html.rd-subject-shell .subject-shell--rd .subject-shell__topics-intro-sync{display:none}html.rd-subject-shell .subject-shell--rd .subject-shell__topics-heading{position:static;margin:0 0 .75rem}html.rd-subject-shell .subject-shell--rd .subject-shell__topics-body{margin-top:0}html.rd-subject-shell .subject-shell--rd .subject-shell__acc-item+.subject-shell__acc-item{margin-top:0}html.rd-subject-shell .subject-shell--rd .subject-shell__acc-trigger{min-height:0;height:auto;padding:.48rem .72rem}html.rd-subject-shell .subject-shell--rd .subject-shell__acc-trigger-top{gap:.55rem;min-height:0}html.rd-subject-shell .subject-shell--rd .subject-shell__acc-trigger-label{font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:.6875rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:#2d252073}html.rd-subject-shell .subject-shell--rd .subject-shell__acc-chev-text{font-size:.625rem;color:#2d252059}html.rd-subject-shell .subject-shell--rd .subject-shell__acc-panel{display:flex;flex-direction:column;gap:2px;padding:2px 0 4px}html.rd-subject-shell .subject-shell--rd .subject-shell__note-pill{height:auto;min-height:0;padding:.58rem .72rem;gap:.55rem}html.rd-subject-shell .subject-shell--rd .subject-shell__note-pill-left{gap:.55rem}html.rd-subject-shell .subject-shell--rd .subject-shell__note-pill-left>svg{width:14px;height:14px}html.rd-subject-shell .subject-shell--rd .subject-shell__note-pill-text{font-size:.875rem;line-height:1.35}html.rd-subject-shell .subject-shell--rd .subject-shell__note-dot{width:6px;height:6px;background:var(--rust-accent)}html.rd-subject-shell .subject-shell--rd .subject-shell__topics-manage{height:auto;min-height:0;padding:.52rem 10px;border-radius:10px}html.rd-subject-shell .subject-shell--rd .subject-shell__empty{padding:.85rem .9rem;border-radius:12px;font-size:.875rem;line-height:1.45}html.rd-subject-shell .subject-shell--rd .subject-shell__placeholder-col{padding:.5rem 0}html.rd-subject-shell .subject-shell--rd .subject-shell__placeholder-btn{margin-top:.85rem;padding:.45rem .85rem;border-radius:999px;border:1px solid var(--ink-08);background:var(--cream-warm);font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:.8125rem;font-weight:500;color:var(--sidebar-muted)}html.rd-subject-shell .subject-shell--rd .subject-shell__placeholder-btn:hover{background:var(--ink-08);color:var(--brown-title)}html.rd-subject-shell .subject-shell--rd .subject-shell__reader{background:var(--cream-page)}html.rd-subject-shell .subject-shell--rd .subject-shell__article-frame{max-width:48rem}html.rd-subject-shell .subject-shell--rd .subject-shell__icon-btn{border:none;background:transparent;box-shadow:none;color:var(--ink-55)}html.rd-subject-shell .subject-shell--rd .subject-shell__icon-btn:hover{background:var(--ink-08);color:var(--brown-title);box-shadow:none}html.rd-subject-shell .subject-shell--rd .subject-shell__more-menu{border:1px solid var(--ink-08);background:var(--cream-page);box-shadow:0 12px 32px #3028221a}html.rd-subject-shell .subject-shell--rd .subject-shell__continue-card{height:auto;min-height:104px;padding:1rem 1.05rem;border-radius:14px;border-color:var(--ink-08);background:var(--cream-page);box-shadow:none}html.rd-subject-shell .subject-shell--rd .subject-shell__continue-card:hover,html.rd-subject-shell .subject-shell--rd .subject-shell__continue-card--active{box-shadow:none;background:var(--cream-warm);border-color:var(--ink-08)}html.rd-subject-shell .subject-shell--rd .subject-shell__continue-grid{gap:.65rem;margin-top:.85rem}html.rd-subject-shell .subject-shell--rd .subject-shell__resources-head,html.rd-subject-shell .subject-shell--rd .subject-shell__up-next-head{font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:.6875rem;font-weight:600;letter-spacing:.14em;color:#2d252073}html.rd-subject-shell .subject-shell--rd .subject-shell__resource-row{border-radius:10px;border-color:var(--ink-08);background:transparent}html.rd-subject-shell .subject-shell--rd .subject-shell__resource-row:hover{background:var(--cream-warm);border-color:var(--ink-08)}html.rd-subject-shell .subject-shell--rd .subject-shell__up-next-row{min-height:0;padding:.58rem .72rem;border-radius:10px;border:none;background:transparent}html.rd-subject-shell .subject-shell--rd .subject-shell__up-next-row:hover{background:var(--cream-warm);box-shadow:none}html.rd-subject-shell .subject-shell--rd .subject-shell__up-next-title,html.rd-subject-shell .subject-shell--rd .subject-shell__up-next-sku{font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:.875rem;line-height:1.35;color:var(--sidebar-muted)}html.rd-subject-shell .subject-shell--rd .subject-shell__up-next-row:hover .subject-shell__up-next-title,html.rd-subject-shell .subject-shell--rd .subject-shell__up-next-row:hover .subject-shell__up-next-sku{color:var(--brown-title)}html.rd-subject-shell .subject-shell--rd .subject-shell__up-next-empty{font-family:var(--font-hero),Georgia,serif;font-style:italic;font-size:.9375rem;color:#2d252080}html.rd-subject-shell .subject-shell--rd .subject-shell__reader-empty-kicker{margin:0 0 .45rem;font-family:var(--font-ui, var(--font)),system-ui,sans-serif;font-size:.6875rem;font-weight:600;font-style:normal;letter-spacing:.14em;text-transform:uppercase;color:#2d252073}html.rd-subject-shell .subject-shell--rd .subject-shell__reader-empty-actions{margin-top:1.25rem;gap:.55rem}html.rd-subject-shell .subject-shell--rd .subject-shell__reader-empty-actions .subject-shell__primary-btn,html.rd-subject-shell .subject-shell--rd .subject-shell__reader-empty-actions .subject-shell__ghost-btn{min-height:0;height:auto;padding:.52rem 1rem;border-radius:999px;font-size:.8125rem;font-weight:500}@media(max-width:860px){html.rd-subject-shell .rd-home-layout{flex-direction:column}}html.rd-subject-shell .subject-shell--rd .rd-subject-sidebar .subject-shell__glyph{color:var(--rust-accent-deep)}html.rd-subject-shell .subject-shell--rd .rd-subject-sidebar .subject-shell__glyph svg{color:var(--rust-accent)}html.rd-subject-shell .subject-shell--rd .subject-shell__topics-heading:after{content:"";display:block;width:1.35rem;height:2px;margin-top:.4rem;border-radius:1px;background:var(--rust-accent);opacity:.5}html.rd-subject-shell .subject-shell--rd .subject-shell__crumb--current{color:var(--rust-accent-deep)}html.rd-subject-shell .subject-shell--rd .subject-shell__pin-pill--on{color:var(--rust-accent-deep);border-color:rgba(var(--accent-rgb),.32)}html.rd-subject-shell .subject-shell--rd .subject-shell__spec-chip{color:var(--rust-accent-deep);border-color:rgba(var(--accent-rgb),.28);background:rgba(var(--accent-rgb),.06)}html.rd-subject-shell .subject-shell--rd .subject-shell__sidebar-search.rd-cmd__bar:focus-within{box-shadow:0 0 0 3px rgba(var(--accent-rgb),.16)}html.rd-subject-shell .subject-shell--rd .subject-shell__acc-trigger-label{color:rgba(var(--accent-rgb),.55)}html.rd-subject-shell .subject-shell--rd .subject-shell__acc-trigger:hover .subject-shell__acc-trigger-label{color:var(--rust-accent-deep)}html.theme-dark{color-scheme:dark;--cream-page: #1c1815;--cream-warm: #221d19;--cream-deep: #2c2520;--paper-panel: #2a231f;--paper-panel-hover: #332b26;--creme: #2c2520;--creme-deep: #352d27;--brown-title: #f0e8df;--brown-name: #c4b5a8;--brown-muted: #a6988d;--text-on-creme: #f0e8df;--text-muted-creme: rgba(240, 232, 223, .52);--text-subtle: rgba(240, 232, 223, .58);--black: #f0e8df;--text: var(--brown-title);--panel-fill: #141110;--panel-surface: #221d19;--panel-elevated: #2e2822;--text-on-dark: #f5ebe0;--text-muted-dark: rgba(245, 235, 224, .52);--sheet-bg: #2c2520;--sheet-surface: #352d27;--sheet-edge: rgba(240, 232, 223, .1);--nav-bar-solid: var(--cream-page);--nav-tab-muted: #9a9188;--ref-muted: #9a9188;--segment-track: var(--cream-deep);--segment-active-fill: var(--paper-panel);--stitch: rgba(240, 232, 223, .08);--shadow-btn: 0 1px 4px rgba(0, 0, 0, .22), 0 1px 1px rgba(0, 0, 0, .16);--shadow-btn-hover: 0 2px 10px rgba(0, 0, 0, .28), 0 1px 2px rgba(0, 0, 0, .18);--shadow-dock: 0 8px 28px rgba(0, 0, 0, .32), 0 1px 0 rgba(255, 255, 255, .04) inset;--dock-grey: #7a7168;--dock-grey-hover: #8c8278;--ink: #f0e8df;--ink-08: rgba(240, 232, 223, .08);--ink-30: rgba(240, 232, 223, .3);--ink-55: rgba(240, 232, 223, .55);--sidebar-muted: rgba(240, 232, 223, .72)}html.theme-dark body{background-color:var(--cream-page);color:var(--text-on-creme)}html.theme-dark .hero-greeting__line{color:var(--brown-title)}html.theme-dark .kbd-help{background:#0806059e}html.theme-dark .kbd-help__dialog{box-shadow:0 30px 60px #0000007a}html.theme-dark .toast--success{background:linear-gradient(180deg,var(--panel-surface) 0%,var(--panel-fill) 100%)}