@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(../media/KaTeX_AMS-Regular.25ieegmnh38ts.woff2)format("woff2"),url(../media/KaTeX_AMS-Regular.10y3kupq4t663.woff)format("woff"),url(../media/KaTeX_AMS-Regular.418dr7cz3fo2x.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(../media/KaTeX_Caligraphic-Bold.06b-ya9t43ioz.woff2)format("woff2"),url(../media/KaTeX_Caligraphic-Bold.2vmk2hva4ctha.woff)format("woff"),url(../media/KaTeX_Caligraphic-Bold.40ltxhe834pns.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(../media/KaTeX_Caligraphic-Regular.2eph4dlhid_m9.woff2)format("woff2"),url(../media/KaTeX_Caligraphic-Regular.3gxeetazf831f.woff)format("woff"),url(../media/KaTeX_Caligraphic-Regular.07-7u27-nhn_r.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(../media/KaTeX_Fraktur-Bold.2sasz-d-jtw8y.woff2)format("woff2"),url(../media/KaTeX_Fraktur-Bold.1alcy76__wdj2.woff)format("woff"),url(../media/KaTeX_Fraktur-Bold.19yqa_tc9d_gx.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(../media/KaTeX_Fraktur-Regular.2d10y4xmjvzlf.woff2)format("woff2"),url(../media/KaTeX_Fraktur-Regular.110oo81prr9n5.woff)format("woff"),url(../media/KaTeX_Fraktur-Regular.2qhy34r6a05dn.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(../media/KaTeX_Main-Bold.3-rowy8o6_4ky.woff2)format("woff2"),url(../media/KaTeX_Main-Bold.0v1esh257kqpe.woff)format("woff"),url(../media/KaTeX_Main-Bold.0us_n0tnxlxu7.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(../media/KaTeX_Main-BoldItalic.14r2naom8mrec.woff2)format("woff2"),url(../media/KaTeX_Main-BoldItalic.13355ck5zr48q.woff)format("woff"),url(../media/KaTeX_Main-BoldItalic.3x_u9cepaced0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(../media/KaTeX_Main-Italic.0lig0v9j0700p.woff2)format("woff2"),url(../media/KaTeX_Main-Italic.0afv392dj4w59.woff)format("woff"),url(../media/KaTeX_Main-Italic.2hkw3230mfwcv.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(../media/KaTeX_Main-Regular.1ryvsdzh2w1_e.woff2)format("woff2"),url(../media/KaTeX_Main-Regular.15u8r3b2y7fv4.woff)format("woff"),url(../media/KaTeX_Main-Regular.0symfa7dqj6jd.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(../media/KaTeX_Math-BoldItalic.1oopuu636h4il.woff2)format("woff2"),url(../media/KaTeX_Math-BoldItalic.12pl58orkw9rg.woff)format("woff"),url(../media/KaTeX_Math-BoldItalic.0y5w36a5aq__2.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(../media/KaTeX_Math-Italic.32405s1aq8vas.woff2)format("woff2"),url(../media/KaTeX_Math-Italic.0w0b1ugh62cfr.woff)format("woff"),url(../media/KaTeX_Math-Italic.2vkekfblmz5nb.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(../media/KaTeX_SansSerif-Bold.0h3wi2z_eouyg.woff2)format("woff2"),url(../media/KaTeX_SansSerif-Bold.1ovw5p-yjp56g.woff)format("woff"),url(../media/KaTeX_SansSerif-Bold.2d03q85pwxpti.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(../media/KaTeX_SansSerif-Italic.0wkjc4dm2kcit.woff2)format("woff2"),url(../media/KaTeX_SansSerif-Italic.1qavw__2zz8gk.woff)format("woff"),url(../media/KaTeX_SansSerif-Italic.3i-q087b23-m8.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(../media/KaTeX_SansSerif-Regular.2peiewu59z3d-.woff2)format("woff2"),url(../media/KaTeX_SansSerif-Regular.1i4afx8nk8n4r.woff)format("woff"),url(../media/KaTeX_SansSerif-Regular.31pbu25feko_c.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(../media/KaTeX_Script-Regular.11h14300o9pd0.woff2)format("woff2"),url(../media/KaTeX_Script-Regular.3110jb9c-bxna.woff)format("woff"),url(../media/KaTeX_Script-Regular.28p_x7iz71ofe.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(../media/KaTeX_Size1-Regular.03lhvx36ekcou.woff2)format("woff2"),url(../media/KaTeX_Size1-Regular.1slf4bh0hc6vm.woff)format("woff"),url(../media/KaTeX_Size1-Regular.1y57-ck23ey8c.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(../media/KaTeX_Size2-Regular.14s5gg-puz6h-.woff2)format("woff2"),url(../media/KaTeX_Size2-Regular.0-kwyvx03omo8.woff)format("woff"),url(../media/KaTeX_Size2-Regular.2u0s-b07k2o9m.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(../media/KaTeX_Size3-Regular.1n1rgzz84z8r9.woff2)format("woff2"),url(../media/KaTeX_Size3-Regular.04o9a_02gu_e8.woff)format("woff"),url(../media/KaTeX_Size3-Regular.1pkn-dge4q0fv.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(../media/KaTeX_Size4-Regular.2sgotkdv3dcyv.woff2)format("woff2"),url(../media/KaTeX_Size4-Regular.3p2r1l7xmebxv.woff)format("woff"),url(../media/KaTeX_Size4-Regular.2uelkfk2yna5e.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(../media/KaTeX_Typewriter-Regular.11gr2d2wuwz77.woff2)format("woff2"),url(../media/KaTeX_Typewriter-Regular.12f8myjij3617.woff)format("woff"),url(../media/KaTeX_Typewriter-Regular.3nee9kjfy6nm8.ttf)format("truetype")}.katex{text-indent:0;text-rendering:auto;font:1.21em/1.2 KaTeX_Main,Times New Roman,serif;position:relative}.katex *{border-color:currentColor;-ms-high-contrast-adjust:none!important}.katex .katex-version:after{content:"0.18.6"}.katex .katex-mathml{clip-path:inset(50%);border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.katex .katex-html>.katex-newline{display:block}.katex .katex-base{white-space:nowrap;width:min-content;position:relative}.katex .katex-base,.katex .katex-strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;table-layout:fixed;display:inline-table}.katex .vlist-r{display:table-row}.katex .vlist{vertical-align:bottom;display:table-cell;position:relative}.katex .vlist>span{height:0;display:block;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{width:0;overflow:hidden}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{vertical-align:bottom;width:2px;min-width:2px;font-size:1px;display:table-cell}.katex .katex-vbox{flex-direction:column;align-items:baseline;display:inline-flex}.katex .katex-thinbox{flex-direction:row;width:0;max-width:0;display:inline-flex}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .katex-hdashline,.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-rule,.katex .katex-underline .underline-line,.katex .mfrac .frac-line{min-height:1px}.katex .mspace{display:inline-block}.katex .katex-smash{line-height:0;display:inline}.katex .clap,.katex .llap,.katex .rlap{width:0;position:relative}.katex .clap>.katex-inner,.katex .llap>.katex-inner,.katex .rlap>.katex-inner{position:absolute}.katex .clap>.katex-fix,.katex .llap>.katex-fix,.katex .rlap>.katex-fix{display:inline-block}.katex .llap>.katex-inner{right:0}.katex .clap>.katex-inner,.katex .rlap>.katex-inner{left:0}.katex .clap>.katex-inner>span{margin-left:-50%;margin-right:50%}.katex .katex-rule{border:0 solid;display:inline-block;position:relative}.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-underline .underline-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .katex-hdashline{border-bottom-style:dashed;width:100%;display:inline-block}.katex .sqrt>.katex-root{margin-left:.277778em;margin-right:-.555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .katex-sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .katex-sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .katex-sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .katex-sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .katex-sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .katex-sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .katex-sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .katex-sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .katex-sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .katex-sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .katex-sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .katex-sizing.reset-size2.size1{font-size:.833333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .katex-sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .katex-sizing.reset-size2.size3{font-size:1.16667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .katex-sizing.reset-size2.size4{font-size:1.33333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .katex-sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .katex-sizing.reset-size2.size6{font-size:1.66667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .katex-sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .katex-sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .katex-sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .katex-sizing.reset-size2.size10{font-size:3.45667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .katex-sizing.reset-size2.size11{font-size:4.14667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .katex-sizing.reset-size3.size1{font-size:.714286em}.katex .fontsize-ensurer.reset-size3.size2,.katex .katex-sizing.reset-size3.size2{font-size:.857143em}.katex .fontsize-ensurer.reset-size3.size3,.katex .katex-sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .katex-sizing.reset-size3.size4{font-size:1.14286em}.katex .fontsize-ensurer.reset-size3.size5,.katex .katex-sizing.reset-size3.size5{font-size:1.28571em}.katex .fontsize-ensurer.reset-size3.size6,.katex .katex-sizing.reset-size3.size6{font-size:1.42857em}.katex .fontsize-ensurer.reset-size3.size7,.katex .katex-sizing.reset-size3.size7{font-size:1.71429em}.katex .fontsize-ensurer.reset-size3.size8,.katex .katex-sizing.reset-size3.size8{font-size:2.05714em}.katex .fontsize-ensurer.reset-size3.size9,.katex .katex-sizing.reset-size3.size9{font-size:2.46857em}.katex .fontsize-ensurer.reset-size3.size10,.katex .katex-sizing.reset-size3.size10{font-size:2.96286em}.katex .fontsize-ensurer.reset-size3.size11,.katex .katex-sizing.reset-size3.size11{font-size:3.55429em}.katex .fontsize-ensurer.reset-size4.size1,.katex .katex-sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .katex-sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .katex-sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .katex-sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .katex-sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .katex-sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .katex-sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .katex-sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .katex-sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .katex-sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .katex-sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .katex-sizing.reset-size5.size1{font-size:.555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .katex-sizing.reset-size5.size2{font-size:.666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .katex-sizing.reset-size5.size3{font-size:.777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .katex-sizing.reset-size5.size4{font-size:.888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .katex-sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .katex-sizing.reset-size5.size6{font-size:1.11111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .katex-sizing.reset-size5.size7{font-size:1.33333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .katex-sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .katex-sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .katex-sizing.reset-size5.size10{font-size:2.30444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .katex-sizing.reset-size5.size11{font-size:2.76444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .katex-sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .katex-sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .katex-sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .katex-sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .katex-sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .katex-sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .katex-sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .katex-sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .katex-sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .katex-sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .katex-sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .katex-sizing.reset-size7.size1{font-size:.416667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .katex-sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .katex-sizing.reset-size7.size3{font-size:.583333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .katex-sizing.reset-size7.size4{font-size:.666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .katex-sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .katex-sizing.reset-size7.size6{font-size:.833333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .katex-sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .katex-sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .katex-sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .katex-sizing.reset-size7.size10{font-size:1.72833em}.katex .fontsize-ensurer.reset-size7.size11,.katex .katex-sizing.reset-size7.size11{font-size:2.07333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .katex-sizing.reset-size8.size1{font-size:.347222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .katex-sizing.reset-size8.size2{font-size:.416667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .katex-sizing.reset-size8.size3{font-size:.486111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .katex-sizing.reset-size8.size4{font-size:.555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .katex-sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .katex-sizing.reset-size8.size6{font-size:.694444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .katex-sizing.reset-size8.size7{font-size:.833333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .katex-sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .katex-sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .katex-sizing.reset-size8.size10{font-size:1.44028em}.katex .fontsize-ensurer.reset-size8.size11,.katex .katex-sizing.reset-size8.size11{font-size:1.72778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .katex-sizing.reset-size9.size1{font-size:.289352em}.katex .fontsize-ensurer.reset-size9.size2,.katex .katex-sizing.reset-size9.size2{font-size:.347222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .katex-sizing.reset-size9.size3{font-size:.405093em}.katex .fontsize-ensurer.reset-size9.size4,.katex .katex-sizing.reset-size9.size4{font-size:.462963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .katex-sizing.reset-size9.size5{font-size:.520833em}.katex .fontsize-ensurer.reset-size9.size6,.katex .katex-sizing.reset-size9.size6{font-size:.578704em}.katex .fontsize-ensurer.reset-size9.size7,.katex .katex-sizing.reset-size9.size7{font-size:.694444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .katex-sizing.reset-size9.size8{font-size:.833333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .katex-sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .katex-sizing.reset-size9.size10{font-size:1.20023em}.katex .fontsize-ensurer.reset-size9.size11,.katex .katex-sizing.reset-size9.size11{font-size:1.43981em}.katex .fontsize-ensurer.reset-size10.size1,.katex .katex-sizing.reset-size10.size1{font-size:.24108em}.katex .fontsize-ensurer.reset-size10.size2,.katex .katex-sizing.reset-size10.size2{font-size:.289296em}.katex .fontsize-ensurer.reset-size10.size3,.katex .katex-sizing.reset-size10.size3{font-size:.337512em}.katex .fontsize-ensurer.reset-size10.size4,.katex .katex-sizing.reset-size10.size4{font-size:.385728em}.katex .fontsize-ensurer.reset-size10.size5,.katex .katex-sizing.reset-size10.size5{font-size:.433944em}.katex .fontsize-ensurer.reset-size10.size6,.katex .katex-sizing.reset-size10.size6{font-size:.48216em}.katex .fontsize-ensurer.reset-size10.size7,.katex .katex-sizing.reset-size10.size7{font-size:.578592em}.katex .fontsize-ensurer.reset-size10.size8,.katex .katex-sizing.reset-size10.size8{font-size:.694311em}.katex .fontsize-ensurer.reset-size10.size9,.katex .katex-sizing.reset-size10.size9{font-size:.833173em}.katex .fontsize-ensurer.reset-size10.size10,.katex .katex-sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .katex-sizing.reset-size10.size11{font-size:1.19961em}.katex .fontsize-ensurer.reset-size11.size1,.katex .katex-sizing.reset-size11.size1{font-size:.200965em}.katex .fontsize-ensurer.reset-size11.size2,.katex .katex-sizing.reset-size11.size2{font-size:.241158em}.katex .fontsize-ensurer.reset-size11.size3,.katex .katex-sizing.reset-size11.size3{font-size:.281351em}.katex .fontsize-ensurer.reset-size11.size4,.katex .katex-sizing.reset-size11.size4{font-size:.321543em}.katex .fontsize-ensurer.reset-size11.size5,.katex .katex-sizing.reset-size11.size5{font-size:.361736em}.katex .fontsize-ensurer.reset-size11.size6,.katex .katex-sizing.reset-size11.size6{font-size:.401929em}.katex .fontsize-ensurer.reset-size11.size7,.katex .katex-sizing.reset-size11.size7{font-size:.482315em}.katex .fontsize-ensurer.reset-size11.size8,.katex .katex-sizing.reset-size11.size8{font-size:.578778em}.katex .fontsize-ensurer.reset-size11.size9,.katex .katex-sizing.reset-size11.size9{font-size:.694534em}.katex .fontsize-ensurer.reset-size11.size10,.katex .katex-sizing.reset-size11.size10{font-size:.833601em}.katex .fontsize-ensurer.reset-size11.size11,.katex .katex-sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{width:.12em;display:inline-block}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .katex-accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .katex-accent .accent-body{position:relative}.katex .katex-accent .accent-body:not(.accent-full){width:0}.katex .katex-overlay{display:block}.katex .mtable .vertical-separator{min-width:1px;display:inline-block}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;height:inherit;width:100%;display:block;position:absolute}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;min-width:0;max-width:none;min-height:0;max-height:none}.katex .katex-stretchy{width:100%;display:block;position:relative;overflow:hidden}.katex .katex-stretchy:after,.katex .katex-stretchy:before{content:""}.katex .hide-tail{width:100%;position:relative;overflow:hidden}.katex .halfarrow-left{width:50.2%;position:absolute;left:0;overflow:hidden}.katex .halfarrow-right{width:50.2%;position:absolute;right:0;overflow:hidden}.katex .brace-left{width:25.1%;position:absolute;left:0;overflow:hidden}.katex .brace-center{width:50%;position:absolute;left:25%;overflow:hidden}.katex .brace-right{width:25.1%;position:absolute;right:0;overflow:hidden}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{box-sizing:border-box;border:.04em solid}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .katex-sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{box-sizing:border-box;border-top:.049em solid;border-right:.049em solid;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{text-align:left;display:inline-block;position:absolute;right:calc(50% + .3em)}.katex .cd-label-right{text-align:right;display:inline-block;position:absolute;left:calc(50% + .3em)}.katex-display{text-align:center;margin:1em 0;display:block}.katex-display>.katex{text-align:center;white-space:nowrap;display:block}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.katex-tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.katex-tag{left:0;right:auto}.katex-display.fleqn>.katex{text-align:left;padding-left:2em}body{counter-reset:katexEqnNo mmlEqnNo}
.eng-module-visual{max-width:1100px;margin-inline:auto}.eng-model-flow{grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:24px 0;padding:0;list-style:none;display:grid}.eng-model-flow li{border:1px solid var(--eng-line);background:var(--eng-soft);overflow-wrap:anywhere;border-radius:7px;padding:12px;font-size:13px}.eng-model-flow li span{color:var(--eng-accent);margin-bottom:6px;font-weight:650;display:block}.eng-model-workbench{border:1px solid var(--eng-line);background:var(--eng-paper);border-radius:10px;grid-template-columns:minmax(190px,.65fr) minmax(0,1.6fr);gap:24px;padding:24px;display:grid}.eng-model-inputs{min-width:0}.eng-model-inputs label{grid-template-columns:1fr auto;gap:10px;margin-bottom:18px;font-size:14px;display:grid}.eng-model-inputs output{font-variant-numeric:tabular-nums}.eng-model-inputs input{width:100%;min-height:44px;accent-color:var(--eng-accent);grid-column:1/-1}.eng-model-inputs :is(input,button):focus-visible,.eng-model-details summary:focus-visible,.eng-model-table-wrap:focus-visible{outline:2px solid var(--eng-accent);outline-offset:4px}.eng-model-metrics{gap:16px;padding-top:12px;display:grid}.eng-model-metrics dt{color:var(--eng-muted);font-size:13px}.eng-model-metrics dd{font-variant-numeric:tabular-nums;margin:4px 0 0;font-size:23px;font-weight:600}.eng-model-metrics small{font-size:13px;font-weight:400}.eng-model-plot,.eng-physical-sketch{min-width:0;margin:0}.eng-model-plot svg,.eng-physical-sketch svg{width:100%;height:auto;display:block}.eng-model-plot text,.eng-physical-sketch text{fill:var(--eng-ink);font:12px var(--font-ui)}.eng-model-grid path{fill:none;stroke:var(--eng-line);stroke-width:1px}.eng-model-zero{fill:none;stroke:var(--eng-muted);stroke-width:1px}.eng-model-series{color:var(--eng-accent)}.eng-model-series polyline{stroke:currentColor;stroke-width:2.5px;fill:none}.eng-model-series circle{fill:var(--eng-paper);stroke:currentColor;stroke-width:2px}.eng-model-series-1{color:var(--eng-ink);stroke-dasharray:8 4}.eng-model-series-2{color:var(--eng-muted);stroke-dasharray:3 3}.eng-model-series-3{color:var(--eng-accent);stroke-dasharray:10 3 2 3}.eng-model-series circle{stroke-dasharray:none}.eng-model-legend{flex-wrap:wrap;gap:10px 18px;padding:0;list-style:none;display:flex}.eng-model-legend li{align-items:center;gap:6px;font-size:13px;display:flex}.eng-model-swatch{border-top:3px solid;width:22px;display:inline-block}.eng-model-swatch.eng-model-series-1{border-top-style:dashed}.eng-model-swatch.eng-model-series-2{border-top-style:dotted}.eng-model-plot figcaption p,.eng-physical-sketch figcaption{color:var(--eng-muted);font-size:12px;line-height:1.6}.eng-physical-sketch{border-bottom:1px solid var(--eng-line);margin-bottom:18px;padding-bottom:16px}.eng-physical-sketch :is(path,rect,circle){fill:none;stroke:var(--eng-accent);stroke-width:2px}.eng-model-result{background:var(--eng-soft);border-left:3px solid var(--eng-accent);font-variant-numeric:tabular-nums;padding:16px}.eng-model-details{border-top:1px solid var(--eng-line);padding-block:12px}.eng-model-details summary{cursor:pointer;min-height:44px;padding-block:10px}.eng-model-table-wrap{max-height:360px;overflow:auto}.eng-model-table-wrap table{border-collapse:collapse;font-variant-numeric:tabular-nums;width:100%;font-size:13px}.eng-model-table-wrap :is(th,td){text-align:left;border-bottom:1px solid var(--eng-line);padding:8px}.eng-model-table-wrap caption{text-align:left;padding:12px 0}@media (max-width:760px){.eng-model-workbench{grid-template-columns:minmax(0,1fr);padding:14px}.eng-model-flow,.eng-model-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}}.eng-platform{--eng-bg:var(--bg);--eng-paper:var(--panel);--eng-ink:var(--text);--eng-muted:var(--muted);--eng-line:var(--border);--eng-soft:var(--surface);--eng-accent:var(--accent);--eng-accent-bg:var(--accent-soft);min-height:100dvh;color:var(--eng-ink);background:var(--eng-bg);font-family:Inter,ui-sans-serif,system-ui,sans-serif;line-height:1.65}.eng-guide-layout{grid-template-columns:175px minmax(0,1fr);align-items:start;gap:40px;margin-top:40px;display:grid}.eng-guide-toc{gap:4px;display:grid;position:sticky;top:24px}.eng-guide-toc a{color:var(--eng-muted);padding:11px 0;font-size:13px;text-decoration:none}.eng-guide-toc a:hover{color:var(--eng-accent)}.eng-guide-body{gap:44px;min-width:0;display:grid}.eng-guide-body>:is(section,div){scroll-margin-top:24px}.eng-guide-body .eng-reading{gap:18px;max-width:none;display:grid}.eng-guide-body .eng-reading>div>h3{margin-bottom:10px}.eng-prerequisites{flex-wrap:wrap;gap:12px;font-size:13px;display:flex}.eng-reading-tasks{gap:24px;padding:0;list-style:none;display:grid}.eng-reading-tasks li{border-left:2px solid var(--eng-line);gap:10px;padding-left:20px;display:grid}.eng-guide-practice{gap:16px;display:grid}.eng-guide-practice>label{font-weight:600}.eng-practice-input{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.eng-practice-input input{width:150px;max-width:100%}.eng-practice-input input,.eng-resource-filters :is(input,select){background:var(--eng-paper);color:var(--eng-ink);border:1px solid var(--eng-line);min-height:44px;font:inherit;border-radius:7px;padding:10px 12px}.eng-study-checklist{background:var(--eng-paper);border:1px solid var(--eng-line);border-radius:10px;gap:14px;padding:24px;display:grid}.eng-study-checklist label{cursor:pointer;align-items:flex-start;gap:12px;min-height:44px;font-size:14px;display:flex}.eng-study-checklist input{width:18px;height:18px;accent-color:var(--eng-accent);flex-shrink:0;margin-top:4px}.eng-chapter-pagination{border-top:1px solid var(--eng-line);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px;padding-top:32px;display:flex}.eng-concept-lab{border:1px solid var(--eng-line);background:var(--eng-paper);border-radius:10px;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;padding:24px;display:grid}.eng-concept-lab figure{align-self:center;min-width:0}.eng-concept-lab svg{width:100%;color:var(--eng-accent);display:block}.eng-concept-lab svg :is(path,polyline){fill:none;stroke:currentColor}.eng-concept-lab svg circle{fill:currentColor}.eng-concept-lab svg text{fill:var(--eng-muted);stroke:none;font:12px var(--font-ui)}.eng-concept-lab .eng-lab-axis{stroke:var(--eng-line)}.eng-concept-lab figcaption{background:var(--eng-soft);font-variant-numeric:tabular-nums;border-radius:7px;padding:12px;font-size:14px}.eng-lab-controls{gap:18px;margin:20px 0;display:grid}.eng-lab-controls label{grid-template-columns:1fr auto;gap:8px;font-size:13px;display:grid}.eng-lab-controls input{width:100%;min-height:32px;accent-color:var(--eng-accent);grid-column:1/-1}.eng-resource-filters{grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr) minmax(0,1fr);gap:16px;margin:32px 0 16px;display:grid}.eng-resource-filters label{gap:8px;min-width:0;font-size:13px;font-weight:600;display:grid}.eng-resource-filters :is(input,select){width:100%;min-width:0}.eng-resource-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:24px;display:grid}.eng-resource-card{align-content:start;gap:16px;display:grid}.eng-platform .eng-resource-card h2{font-size:1.2rem}.eng-resource-card>p:not(.eng-kicker){color:var(--eng-muted);font-size:14px}.eng-resource-rights{border-top:1px solid var(--eng-line);padding-top:14px;font-size:13px}.eng-resource-rights summary{cursor:pointer;min-height:30px;font-weight:600}.eng-resource-rights p{margin-bottom:12px}@media (max-width:1100px){.eng-guide-layout{grid-template-columns:minmax(0,1fr);gap:28px}.eng-guide-toc{border-bottom:1px solid var(--eng-line);grid-template-columns:repeat(2,minmax(0,1fr));padding-bottom:20px;position:static}.eng-guide-toc .eng-kicker{grid-column:1/-1}}@media (max-width:700px){.eng-resource-filters,.eng-resource-grid,.eng-concept-lab{grid-template-columns:minmax(0,1fr)}.eng-concept-lab,.eng-study-checklist{padding:18px}}.engineering-shell-host{z-index:1;position:relative}.eng-platform *{box-sizing:border-box}.eng-platform :is(h1,h2,h3,p,figure,dl){margin:0}.eng-platform h1{letter-spacing:-.045em;font-size:clamp(2.15rem,4vw,3.55rem);font-weight:650;line-height:1.12}.eng-platform h2{letter-spacing:-.025em;font-size:clamp(1.45rem,2.5vw,1.85rem);font-weight:650;line-height:1.25}.eng-platform h3{font-size:1.08rem;font-weight:650;line-height:1.45}.eng-platform a{color:inherit;text-underline-offset:4px}.eng-platform button,.eng-platform select,.eng-platform textarea{font:inherit}.eng-platform :is(button,a,input,summary,select,textarea):focus-visible{outline:3px solid var(--eng-accent);outline-offset:4px}.eng-platform button:disabled{opacity:.5;cursor:not-allowed}.eng-platform button{cursor:pointer}.eng-platform .eng-kicker{letter-spacing:.1em;text-transform:uppercase;color:var(--eng-muted);font-size:.7rem;font-weight:700}.eng-platform .eng-small{color:var(--eng-muted);font-size:.8rem;line-height:1.6}.eng-muted{color:var(--eng-muted)}.eng-topbar{background:var(--eng-paper);border-bottom:1px solid var(--eng-line);align-items:center;gap:28px;min-height:76px;padding:12px 32px;display:flex}.eng-brand{letter-spacing:-.025em;align-items:center;gap:12px;font-size:1rem;text-decoration:none;display:flex}.eng-brand b{color:var(--eng-muted);padding-left:8px;font-weight:500}.eng-mark{color:#fff;background:#172b34;border-radius:7px;place-items:center;width:38px;height:38px;font-weight:700;display:grid}.eng-topbar-note{color:var(--eng-muted);margin:0 auto;font-size:.8rem}.eng-text-link{align-items:center;min-height:44px;font-size:.85rem;font-weight:550;text-decoration:none;display:inline-flex}.eng-text-link:hover{text-decoration:underline}.eng-shell-grid{grid-template-columns:220px minmax(0,1fr);display:grid}.eng-sidebar{border-right:1px solid var(--eng-line);background:var(--eng-paper);padding:36px 18px}.eng-sidebar>.eng-kicker{padding-left:12px}.eng-sidebar nav{gap:4px;margin-top:18px;display:grid}.eng-sidebar nav a{color:var(--eng-muted);border-radius:6px;align-items:center;gap:13px;padding:11px 12px;font-size:.86rem;text-decoration:none;display:flex}.eng-sidebar nav a[aria-current=page]{background:var(--eng-soft);color:var(--eng-ink);font-weight:650}.eng-sidebar nav a:hover{background:var(--eng-soft)}.eng-sidebar nav a>span{width:17px;font-size:1.2rem}.eng-sidebar-note{border-top:1px solid var(--eng-line);margin-top:54px;padding:24px 12px}.eng-sidebar-note p{color:var(--eng-muted);margin:12px 0;font-size:.82rem}.eng-main{width:100%;min-width:0;max-width:1360px;margin:0 auto;padding:40px clamp(20px,4vw,64px) 64px}.eng-page-heading{max-width:760px;margin:16px 0 32px}.eng-page-heading h1{margin:12px 0 20px}.eng-page-heading>p:last-child{max-width:650px;color:var(--eng-muted);font-size:1.05rem}.eng-button{border:1px solid var(--eng-line);background:var(--eng-paper);min-height:44px;color:var(--eng-ink);justify-content:center;align-items:center;gap:18px;padding:10px 17px;font-size:.85rem;font-weight:650;line-height:1.45;text-decoration:none;display:inline-flex;border-radius:7px!important}.eng-platform .eng-button-primary{color:#fff;background:#b94b1c;border-color:#b94b1c}.eng-button:hover:not(:disabled){filter:brightness(.95)}.eng-resume{border:1px solid var(--eng-line);border-left:4px solid var(--eng-accent);background:var(--eng-paper);border-radius:8px;justify-content:space-between;align-items:center;gap:24px;margin:28px 0;padding:26px;display:flex}.eng-resume h2{margin:7px 0;font-size:1.3rem}.eng-resume p:not(.eng-kicker),.eng-resume small{color:var(--eng-muted);font-size:.85rem}.eng-resume small{margin-top:12px;font-size:.73rem;display:block}.eng-resume .eng-button{flex-shrink:0}.eng-path-feature{background:var(--eng-paper);border:1px solid var(--eng-line);border-radius:10px;grid-template-columns:1fr 1fr;margin-top:36px;display:grid;overflow:hidden}.eng-path-feature>div:last-child{align-content:center;gap:18px;padding:32px;display:grid}.eng-path-feature p:not(.eng-kicker){color:var(--eng-muted)}.eng-path-feature .eng-button{justify-self:start}.eng-blueprint{color:#a7c1ca;background-color:#172b34;background-image:linear-gradient(#ffffff09 1px,#0000 1px),linear-gradient(90deg,#ffffff09 1px,#0000 1px);background-size:24px 24px;place-content:center;padding:20px;display:grid}.eng-blueprint svg{width:100%}.eng-blueprint span{text-align:center;letter-spacing:.07em;font-size:.72rem}.eng-section{margin-top:48px;scroll-margin-top:24px}.eng-section>p{margin-top:16px}.eng-section-heading{justify-content:space-between;align-items:center;gap:20px;display:flex}.eng-section-heading h2{margin-top:5px}.eng-method{grid-template-columns:repeat(3,1fr);gap:24px;margin:24px 0;padding:0;list-style:none;display:grid}.eng-method li{border-top:1px solid var(--eng-line);padding-top:20px}.eng-method li>span{color:var(--eng-accent);font-variant-numeric:tabular-nums;font-size:.8rem}.eng-method h3{margin:10px 0}.eng-method p{color:var(--eng-muted);font-size:.9rem}.eng-footnote{border-top:1px solid var(--eng-line);color:var(--eng-muted);padding-top:24px;font-size:.78rem;margin-top:40px!important}.eng-metrics{border-block:1px solid var(--eng-line);color:var(--eng-muted);flex-wrap:wrap;gap:20px 32px;padding:20px 0;font-size:.8rem;display:flex}.eng-metrics strong{color:var(--eng-ink);font-size:1.15rem;display:block}.eng-stages{gap:12px;margin-top:28px;display:grid}.eng-stage{background:var(--eng-paper);border:1px solid var(--eng-line);border-radius:8px}.eng-stage summary{cursor:pointer;align-items:center;gap:20px;padding:22px 24px;list-style:none;display:flex}.eng-stage summary::-webkit-details-marker{display:none}.eng-source-list summary::-webkit-details-marker{display:none}.eng-stage-number{color:var(--eng-accent);font:1.25rem ui-monospace,monospace}.eng-stage summary strong{font-size:1rem;display:block}.eng-stage summary small{color:var(--eng-muted);margin-top:3px;font-size:.78rem;display:block}.eng-expand{margin-left:auto;font-size:1.4rem}.eng-stage[open] .eng-expand{transform:rotate(45deg)}.eng-stage-body{padding:0 24px 24px}.eng-chapters{margin:14px 0;padding:0;list-style:none}.eng-chapters li{border-top:1px solid var(--eng-line);grid-template-columns:25px minmax(0,1fr) auto;gap:15px;padding:20px 0;display:grid}.eng-chapters h3{font-size:.95rem}.eng-chapters p{color:var(--eng-muted);margin-top:6px;font-size:.8rem}.eng-chapter-number{color:var(--eng-muted);padding-top:5px;font:.8rem ui-monospace,monospace}.eng-status{border:1px solid var(--eng-line);color:var(--eng-muted);white-space:nowrap;border-radius:4px;align-self:start;padding:4px 9px;font-size:.68rem;display:inline-flex}.eng-status-ready{color:var(--eng-accent);background:var(--eng-accent-bg);border-color:#0000}.eng-project{border-left:2px solid var(--eng-line);color:var(--eng-muted);padding-left:16px;font-size:.82rem}.eng-source-list{border-top:1px solid var(--eng-line);margin-top:24px}.eng-source-list details{border-bottom:1px solid var(--eng-line)}.eng-source-list summary{cursor:pointer;justify-content:space-between;align-items:center;gap:15px;padding:18px 0;font-size:.88rem;list-style:none;display:flex}.eng-source-list summary .eng-small{display:block}.eng-source-list details>div{padding-bottom:22px;font-size:.88rem}.eng-source-list details>div>p{margin-bottom:10px}.eng-source-list a{align-items:center;min-height:44px;margin-right:24px;display:inline-flex}.eng-lesson-heading{justify-content:space-between;align-items:start;gap:18px;padding-block:14px 30px;display:flex}.eng-lesson-heading h1{margin:10px 0;font-size:clamp(2rem,3.6vw,3rem)}.eng-lesson-heading p:last-child{color:var(--eng-muted)}.eng-lesson-player{border:1px solid var(--eng-line);background:var(--eng-paper);border-radius:10px;grid-template-columns:190px minmax(0,1fr);display:grid}.eng-lesson-steps{border-right:1px solid var(--eng-line);background:var(--eng-bg);border-radius:10px 0 0 10px;padding:20px 12px}.eng-lesson-steps ol{gap:8px;margin:0;padding:0;list-style:none;display:grid;position:sticky;top:20px}.eng-lesson-steps button{text-align:left;width:100%;color:var(--eng-muted);background:0 0;border:1px solid #0000;border-radius:6px;align-items:baseline;gap:10px;padding:12px 10px;font-size:.79rem;display:flex}.eng-lesson-steps button strong{font-weight:500}.eng-lesson-steps button span{font:.72rem ui-monospace,monospace}.eng-lesson-steps button[aria-current=step]{background:var(--eng-paper);color:var(--eng-accent);border-color:var(--eng-line)}.eng-lesson-body{min-width:0;padding:clamp(18px,2.5vw,32px)}.eng-lesson-step-heading h2{margin:8px 0 24px;scroll-margin-top:24px}.eng-lesson-step-heading h2:focus{outline:none}.eng-reading{max-width:72ch}.eng-lesson-content{min-height:380px}.eng-lesson-content :is(p,ul,ol){margin-top:16px}.eng-lesson-content h3{margin-top:28px}.eng-lesson-content p{line-height:1.8}.eng-lesson-content .eng-lead{color:var(--eng-muted);margin-top:0;font-size:1.05rem}.eng-lesson-content li+li{margin-top:9px}.eng-measurement{background:var(--eng-soft);border-radius:7px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-top:26px;padding:28px 18px;display:flex}.eng-measurement>span{text-align:center}.eng-measurement strong{font-size:clamp(1.3rem,2.5vw,2rem);font-weight:550;display:block}.eng-measurement small{color:var(--eng-muted);font-size:.65rem}.eng-table-wrap{margin-top:18px;overflow-x:auto}.eng-platform table{border-collapse:collapse;width:100%;font-size:.85rem}.eng-platform caption{text-align:left;color:var(--eng-muted);padding-bottom:10px;font-size:.75rem}.eng-platform :is(th,td){text-align:left;border-bottom:1px solid var(--eng-line);padding:10px 12px}.eng-platform th{background:var(--eng-soft);font-weight:600}.eng-callout{background:var(--eng-accent-bg);border-left:3px solid var(--eng-accent);border-radius:0 6px 6px 0;margin-top:24px;padding:18px 20px}.eng-callout>strong{color:var(--eng-accent);font-size:.9rem}.eng-callout p{margin-top:6px;font-size:.9rem}.eng-unit-ladder{border-block:1px solid var(--eng-line);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px;margin-top:24px;padding:20px 0;display:flex}.eng-unit-ladder strong{font-size:1.2rem;display:block}.eng-unit-ladder small{color:var(--eng-muted);font-size:.7rem;display:block}.eng-equation{background:var(--eng-soft);border-radius:7px;padding:18px;margin-top:20px!important}.eng-equation>div{padding-bottom:5px;overflow:auto hidden}.eng-equation .katex-display{font-size:.93em}.eng-equation figcaption{color:var(--eng-muted);margin-top:8px;font-size:.8rem}.eng-worked-steps{padding-left:22px;font-size:.9rem}.eng-disclosure{border-block:1px solid var(--eng-line);margin-top:24px;padding:16px 0;font-size:.86rem}.eng-disclosure summary{cursor:pointer;min-height:44px;padding-top:9px;font-weight:650}.eng-disclosure .eng-button{margin-top:16px}.eng-lesson-footer{border-top:1px solid var(--eng-line);justify-content:space-between;align-items:center;gap:14px;margin-top:36px;padding-top:24px;display:flex}.eng-lab{margin-top:28px}.eng-lab-heading{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px;display:flex}.eng-lab-heading h3{margin-top:4px}.eng-lab-heading .eng-kicker{margin:0}.eng-segment{border:1px solid var(--eng-line);border-radius:6px;display:flex;overflow:hidden}.eng-segment button{background:var(--eng-paper);min-width:44px;min-height:44px;color:var(--eng-muted);border:0;border-radius:0;font-size:.75rem}.eng-segment button[aria-pressed=true]{background:var(--eng-soft);color:var(--eng-ink);font-weight:700}.eng-lab-grid{border:1px solid var(--eng-line);border-radius:8px;grid-template-columns:minmax(0,1fr);gap:0;margin-top:18px;display:grid;overflow:hidden}.eng-viewport{color:#dbe9f0;background:#14262f;min-width:0}.eng-viewport-canvas{height:310px;position:relative;overflow:hidden}.eng-viewport-footer{border-top:1px solid #39505c;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:5px;padding:8px 14px;font-size:.68rem;display:flex}.eng-viewport-footer button{color:#dbe9f0;background:0 0;border:0;min-height:44px;padding:6px 10px;font-size:.68rem}.eng-scene-loading{place-content:center;height:100%;font-size:.85rem;display:grid}.eng-part-drawing{width:100%;height:100%;display:block}.eng-scene-warning{z-index:2;background:#14262f;font-size:.72rem;position:absolute;top:0;left:10px;right:10px}.eng-lab-controls{background:var(--eng-bg);grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;padding:18px;display:grid}.eng-lab-controls>p,.eng-select-label{grid-column:1/-1}.eng-lab-controls p{margin:0}.eng-slider{min-width:0;display:block}.eng-slider>span{flex-wrap:wrap;justify-content:space-between;gap:4px 10px;font-size:.75rem;display:flex}.eng-slider output{font-variant-numeric:tabular-nums;font-weight:650}.eng-slider input{width:100%;height:36px;accent-color:var(--eng-accent);display:block}.eng-select-label{align-items:center;gap:16px;font-size:.8rem;display:flex}.eng-select-label select{max-width:100%;min-height:44px;color:var(--eng-ink);background:var(--eng-paper);border:1px solid var(--eng-line);border-radius:6px;padding:8px}.eng-lab-readout{background:var(--eng-soft);border-radius:7px;grid-template-columns:1fr;gap:14px;padding:20px;display:grid;margin-top:18px!important}.eng-lab-readout dt{color:var(--eng-muted);font-size:.72rem}.eng-lab-readout dd{overflow-wrap:anywhere;margin:4px 0 0;font:1rem ui-monospace,monospace}.eng-lab-readout small{font-size:.8rem}.eng-checkpoint fieldset{border:0;min-width:0;margin:30px 0 0;padding:0}.eng-checkpoint legend{width:100%;margin-bottom:12px;font-size:.97rem;font-weight:600;display:block}.eng-checkpoint legend .eng-kicker{margin-bottom:8px;display:block}.eng-answer-options{gap:8px;display:grid}.eng-answer-options label{border:1px solid var(--eng-line);cursor:pointer;border-radius:6px;align-items:center;gap:12px;min-height:48px;padding:11px 14px;font-size:.9rem;display:flex}.eng-answer-options label:has(input:checked){background:var(--eng-accent-bg);border-color:var(--eng-accent)}.eng-answer-options input{accent-color:var(--eng-accent);width:18px;height:18px}.eng-feedback{background:var(--eng-soft);border-radius:6px;margin-top:18px;padding:16px;font-size:.9rem}.eng-feedback-correct{border-left:3px solid #588878}.eng-exercise-actions{flex-wrap:wrap;gap:12px;margin-top:24px;display:flex}.eng-retrieval-workspace{border:1px solid var(--eng-line);background:var(--eng-bg);border-radius:8px;margin-top:24px;padding:24px}.eng-retrieval-workspace h3{margin:16px 0;font-size:1.25rem}.eng-retrieval-workspace textarea{resize:vertical;background:var(--eng-paper);border:1px solid var(--eng-line);width:100%;min-height:120px;color:var(--eng-ink);border-radius:6px;margin:8px 0 20px;padding:14px;font-size:.9rem}.eng-retrieval-workspace textarea::placeholder{color:var(--eng-muted)}.eng-text-button{color:var(--eng-muted);background:0 0;border:0;min-height:44px;margin-top:12px;padding:10px 0;font-size:.82rem;display:block}@media (min-width:1400px){.eng-lab-readout{grid-template-columns:1.4fr 1fr 1fr}}@media (max-width:1120px){.eng-shell-grid{grid-template-columns:180px minmax(0,1fr)}.eng-sidebar{padding-inline:10px}.eng-main{padding-inline:24px}.eng-lesson-player{grid-template-columns:1fr}.eng-lesson-steps{border-right:0;border-bottom:1px solid var(--eng-line);border-radius:10px 10px 0 0;padding:12px}.eng-lesson-steps ol{grid-template-columns:repeat(3,1fr);position:static}.eng-topbar-note{display:none}.eng-topbar>.eng-text-link{margin-left:auto}}@media (max-width:760px){.eng-topbar{flex-wrap:wrap;gap:12px;padding:12px 18px}.eng-brand{font-size:.9rem}.eng-topbar>.eng-text-link{font-size:.7rem}.eng-shell-grid{grid-template-columns:1fr}.eng-sidebar{border-right:0;border-bottom:1px solid var(--eng-line);padding:8px 14px}.eng-sidebar>.eng-kicker,.eng-sidebar-note{display:none}.eng-sidebar nav{grid-template-columns:repeat(4,minmax(0,1fr));gap:2px;margin:0}.eng-sidebar nav a{text-align:center;justify-content:center;min-height:44px;padding:10px 4px;font-size:.7rem}.eng-sidebar nav a>span{display:none}.eng-main{padding:24px 16px 40px}.eng-resume{flex-direction:column;align-items:start;padding:20px}.eng-path-feature{grid-template-columns:1fr}.eng-blueprint{min-height:220px}.eng-blueprint svg{max-height:230px}.eng-method{grid-template-columns:1fr;gap:16px}.eng-section-heading{flex-direction:column;align-items:start;gap:10px}.eng-stage summary{gap:14px;padding:18px}.eng-stage-body{padding:0 18px 18px}.eng-chapters li{grid-template-columns:20px minmax(0,1fr);gap:10px}.eng-chapters .eng-status{grid-column:2;justify-self:start}.eng-lesson-heading{flex-direction:column}.eng-lesson-steps ol{grid-template-columns:repeat(2,minmax(0,1fr))}.eng-lesson-steps button{min-height:52px;font-size:.73rem}.eng-lesson-body{padding:20px 16px}.eng-lab-controls,.eng-lab-readout{grid-template-columns:1fr}.eng-select-label{flex-wrap:wrap;gap:8px}.eng-unit-ladder{gap:8px}.eng-unit-ladder strong{font-size:1rem}.eng-unit-ladder small{max-width:78px}.eng-lesson-footer{flex-wrap:wrap}.eng-lesson-footer>.eng-small{display:none}.eng-lesson-footer .eng-button{padding-inline:12px;font-size:.78rem}.eng-retrieval-workspace{padding:18px}.eng-viewport-canvas{height:260px}}@media (prefers-reduced-motion:reduce){.eng-platform *,.eng-platform :before,.eng-platform :after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}.eng-platform .eng-main{max-width:none;padding:20px clamp(16px,2vw,28px) 32px}.eng-platform .eng-page-heading{max-width:none;margin:12px 0 20px}.eng-platform .eng-page-heading h1,.eng-platform .eng-lesson-heading h1{margin:0 0 8px;font-size:clamp(1.75rem,2.6vw,2.4rem);line-height:1.2}.eng-platform .eng-page-heading>p:last-child{max-width:72ch;font-size:14px}.eng-platform .eng-lesson-heading{padding:8px 0 16px}.eng-platform .eng-lesson-heading p:last-child{max-width:72ch;font-size:14px}.eng-platform .eng-section{margin-block:24px}.eng-scope{color:var(--eng-muted);border-block:1px solid var(--eng-line);margin:12px 0;font-size:14px}.eng-scope>summary{cursor:pointer;min-height:44px;color:var(--eng-ink);align-content:center}.eng-scope>p,.eng-scope>ol{max-width:80ch;padding:0 0 16px}.eng-scope>ol{padding-left:20px}.eng-scope li{padding:12px 0}.eng-platform .eng-resource-filters{margin-top:20px}.eng-platform .eng-resource-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr));gap:16px}.eng-shared-foundations{border-top:1px solid var(--eng-line);margin:24px 0;padding-top:16px}.eng-lesson-hero{border-bottom:1px solid var(--eng-line);grid-template-columns:minmax(0,1.05fr) minmax(330px,.95fr);align-items:center;gap:clamp(28px,5vw,72px);padding:clamp(26px,4vw,56px) 0 clamp(30px,5vw,64px);display:grid}.eng-lesson-hero__copy{min-width:0}.eng-lesson-hero__eyebrow{flex-wrap:wrap;align-items:center;gap:14px;display:flex}.eng-lesson-hero__eyebrow .eng-status{margin-left:auto}.eng-lesson-hero h1{max-width:720px;margin:18px 0 14px;font-size:clamp(2.5rem,5vw,5rem);line-height:.98}.eng-lesson-hero__outcome{max-width:58ch;color:var(--eng-muted);margin:0;font-size:clamp(1rem,1.5vw,1.22rem);line-height:1.65}.eng-lesson-hero__stats{border-top:1px solid var(--eng-line);color:var(--eng-muted);flex-wrap:wrap;gap:18px 28px;margin-top:28px;padding-top:18px;font-size:.78rem;display:flex}.eng-lesson-hero__stats strong{color:var(--eng-ink);font-variant-numeric:tabular-nums;margin-right:5px;font-size:1.1rem;display:inline-block}.eng-lesson-orientation{border-block:1px solid var(--eng-line);grid-template-columns:minmax(0,1fr) minmax(240px,.7fr);align-items:start;gap:28px;margin:26px 0 12px;padding:20px 0;display:grid}.eng-lesson-orientation p{max-width:68ch;color:var(--eng-muted);margin:7px 0 0;font-size:.9rem}.eng-lesson-orientation details{border-left:2px solid var(--eng-accent);color:var(--eng-muted);padding-left:22px}.eng-lesson-orientation summary{cursor:pointer;min-height:32px;color:var(--eng-ink);font-weight:650}.eng-lesson-orientation details p{font-size:.82rem}.study-graphic{color:#c8dfe6;background:#172b34;border:1px solid #39505c;border-radius:10px;min-width:0;margin:0;padding:clamp(18px,3vw,28px);overflow:hidden}.study-graphic__topline{color:#9eb9c2;letter-spacing:.14em;text-transform:uppercase;justify-content:space-between;gap:16px;font-size:.66rem;font-weight:700;display:flex}.study-graphic svg{width:100%;margin:16px 0 8px;display:block}.study-graphic svg :is(line,path,rect,circle){vector-effect:non-scaling-stroke}.study-graphic__frame{fill:none;stroke:#ffffff18;stroke-width:1px}.study-graphic__axis{fill:none;stroke:#8baab5;stroke-width:1.5px}.study-graphic__curve{fill:none;stroke:#ffbb8f;stroke-width:3px}.study-graphic__shape,.study-graphic__box,.study-graphic__ring{fill:#ffbb8f10;stroke:#ffbb8f;stroke-width:2px}.study-graphic__dash{fill:none;stroke:#c8dfe6;stroke-width:1.5px;stroke-dasharray:6 5}.study-graphic__ticks{fill:none;stroke:#c8dfe6;stroke-width:1.5px}.study-graphic svg marker path{fill:#ffbb8f;stroke:none}.study-graphic text{fill:#c8dfe6;font:12px var(--font-ui,Inter, sans-serif)}.study-graphic figcaption{color:#a9c0c8;gap:4px;margin-top:10px;font-size:.76rem;line-height:1.55;display:grid}.study-graphic figcaption strong{color:#fff0e5;font-size:.92rem}.study-graphic--concept{max-width:720px;margin:8px 0 0 auto}.study-graphic--worked{margin-top:18px;padding:16px}.study-graphic--worked figcaption{display:none}.eng-reading--understand{gap:26px!important}.eng-reading-visual-explanation{border-top:1px solid var(--eng-line);gap:12px;margin-top:8px;padding-top:28px;display:grid}.eng-reading-visual-explanation>.eng-muted{max-width:62ch;margin:0}.eng-reading-visual-explanation .eng-module-visual{margin-top:4px}.eng-reading-intro{grid-template-columns:minmax(0,1fr) minmax(220px,.72fr);gap:24px;padding-bottom:4px;display:grid}.eng-reading-intro .eng-prerequisites{margin-top:10px}.eng-reading-intro .eng-shared-foundations{border-top:0;border-left:2px solid var(--eng-accent);margin:0;padding:0 0 0 20px}.eng-concept-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.eng-concept-card{border:1px solid var(--eng-line);background:var(--eng-paper);border-radius:8px;grid-template-columns:32px 1fr;gap:14px;min-width:0;padding:20px;display:grid}.eng-concept-card__number{color:var(--eng-accent);font:.75rem ui-monospace,monospace}.eng-concept-card h3{margin:0 0 8px;font-size:1rem}.eng-concept-card p{color:var(--eng-muted);margin:0;font-size:.9rem;line-height:1.7}.module-concept-panel{border:1px solid var(--eng-line);background:linear-gradient(135deg, var(--eng-paper), var(--eng-soft));border-radius:10px;grid-template-columns:minmax(0,.85fr) minmax(320px,1.15fr);align-items:center;gap:clamp(22px,4vw,48px);padding:clamp(20px,3vw,32px);display:grid}.module-concept-panel__copy{min-width:0}.module-concept-panel h3{margin:8px 0 10px;font-size:clamp(1.25rem,2vw,1.65rem)}.module-concept-panel__copy>p:not(.eng-kicker){color:var(--eng-muted);margin:0;line-height:1.7}.module-concept-panel__relationship{border-left:3px solid var(--eng-accent);background:var(--eng-accent-bg);gap:6px;margin:20px 0;padding:14px 16px;display:grid}.module-concept-panel__relationship span,.module-concept-panel dt{color:var(--eng-muted);letter-spacing:.1em;text-transform:uppercase;font-size:.67rem;font-weight:700}.module-concept-panel__relationship strong{color:var(--eng-ink);overflow-wrap:anywhere;font:1rem ui-monospace,monospace}.module-concept-panel dl{gap:10px;margin:0;display:grid}.module-concept-panel dl>div{border-top:1px solid var(--eng-line);grid-template-columns:92px 1fr;gap:12px;padding-top:10px;display:grid}.module-concept-panel dd{color:var(--eng-muted);margin:0;font-size:.82rem;line-height:1.5}.module-concept-panel__diagram{min-width:0;color:var(--eng-accent);border:1px solid var(--eng-line);background:var(--eng-bg);border-radius:8px;margin:0;padding:16px}.module-concept-panel__diagram svg{width:100%;height:auto;display:block}.module-concept-panel__diagram svg :is(path,line,rect,circle){fill:none;stroke:currentColor;stroke-width:2px;vector-effect:non-scaling-stroke}.module-concept-panel__diagram svg text{fill:var(--eng-ink);stroke:none;font:12px var(--font-ui,Inter, sans-serif)}.module-concept-panel__diagram figcaption{color:var(--eng-muted);margin-top:8px;font-size:.7rem}.eng-reading--worked{max-width:none}.eng-worked-layout{grid-template-columns:minmax(0,.85fr) minmax(320px,1.15fr);align-items:start;gap:clamp(24px,4vw,56px);display:grid}.eng-worked-question{margin:0;font-size:1.12rem;line-height:1.65}.eng-worked-steps{counter-reset:worked;gap:0;margin:24px 0 0;padding:0;list-style:none;display:grid}.eng-worked-steps li{border-top:1px solid var(--eng-line);grid-template-columns:34px 1fr;gap:14px;padding:14px 0;display:grid}.eng-worked-steps li>span{color:var(--eng-accent);font:.75rem ui-monospace,monospace}.eng-worked-steps li p{color:var(--eng-muted);margin:0;font-size:.9rem;line-height:1.6}.eng-reading--practice{max-width:780px}.eng-reading--practice .eng-guide-practice{border:1px solid var(--eng-line);background:var(--eng-paper);border-radius:10px;padding:clamp(20px,4vw,34px)}.eng-reading--practice .eng-guide-practice>label{max-width:60ch;font-size:1.05rem;line-height:1.6}.eng-reading--sources{max-width:none}.eng-reading--sources>.eng-muted{max-width:70ch}.eng-reading--sources .eng-reading-tasks{max-width:900px}.eng-reading-task__index{color:var(--eng-accent);font:.75rem ui-monospace,monospace}.eng-reading--sources .eng-reading-tasks li{border:1px solid var(--eng-line);border-left:3px solid var(--eng-accent);background:var(--eng-paper);border-radius:8px;grid-template-columns:34px 1fr;gap:16px;padding:20px}.eng-reading--sources .eng-reading-tasks li h3{margin:5px 0 8px}.eng-reading--sources .eng-reading-tasks li p{color:var(--eng-muted);margin:5px 0 0;font-size:.88rem;line-height:1.6}.eng-reading--notebook{max-width:820px}.eng-recall-list{counter-reset:recall;gap:0;margin:8px 0 0;padding:0;list-style:none;display:grid}.eng-recall-list li{border-top:1px solid var(--eng-line);grid-template-columns:32px 1fr;gap:14px;padding:15px 0;display:grid}.eng-recall-list li span{color:var(--eng-accent);font:.75rem ui-monospace,monospace}.eng-recall-list li p{color:var(--eng-muted);margin:0}.learning-reader{grid-template-columns:218px minmax(0,900px);align-items:start;gap:clamp(24px,4vw,54px)}.learning-step-nav{position:sticky;top:24px}.learning-step-nav a{border-left:0;border-right:2px solid var(--border);border-radius:7px 0 0 7px;gap:10px;padding:13px 14px 13px 10px;position:relative}.learning-step-nav a[aria-current=step]{border-right-color:var(--accent);background:var(--accent-soft)}.learning-step-nav a span{min-width:22px;color:var(--accent);font:.72rem ui-monospace,monospace}.learning-step-nav a small{display:block}.learning-reader-body{min-width:0}.learning-reader-body>h2{margin:8px 0 24px;font-size:clamp(1.65rem,3vw,2.3rem)}.learning-step-content{gap:28px}.learning-step>.eng-reading{max-width:100%}.learning-step-actions{margin-top:32px;padding-top:20px}@media (max-width:1100px){.eng-lesson-hero{grid-template-columns:minmax(0,1fr) minmax(280px,.8fr)}.learning-reader{grid-template-columns:180px minmax(0,1fr)}}@media (max-width:760px){.eng-lesson-hero,.eng-lesson-orientation,.eng-reading-intro,.eng-worked-layout,.module-concept-panel{grid-template-columns:1fr}.eng-lesson-hero h1{font-size:clamp(2.35rem,12vw,3.6rem)}.eng-lesson-hero__eyebrow .eng-status{margin-left:0}.eng-concept-grid{grid-template-columns:1fr}.eng-reading-intro .eng-shared-foundations{border-left:0;border-top:2px solid var(--eng-accent);padding:16px 0 0}.eng-worked-layout{gap:24px}.learning-step-nav{position:static}.learning-reader{grid-template-columns:1fr;gap:16px}.learning-step-nav ol{grid-template-columns:repeat(3,minmax(0,1fr));gap:4px}.learning-step-nav a{border-right:0;border-bottom:2px solid var(--border);border-radius:6px;min-height:64px;padding:9px;font-size:.72rem}.learning-step-nav a[aria-current=step]{border-bottom-color:var(--accent)}.learning-step-nav a small{display:none}}@media (max-width:480px){.eng-lesson-hero__stats{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.eng-lesson-hero__stats span{gap:3px;display:grid}.learning-step-nav ol{grid-template-columns:repeat(2,minmax(0,1fr))}}
