@font-face{font-family:DM Sans;font-style:normal;font-display:swap;font-weight:400;src:url(../media/dm-sans-latin-ext-400-normal.0fqyy_rzir8wk.woff2)format("woff2"),url(../media/dm-sans-latin-ext-400-normal.2wgrmp5e19scw.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:DM Sans;font-style:normal;font-display:swap;font-weight:400;src:url(../media/dm-sans-latin-400-normal.0471snlmja818.woff2)format("woff2"),url(../media/dm-sans-latin-400-normal.40quu04grbhf8.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:DM Sans;font-style:normal;font-display:swap;font-weight:500;src:url(../media/dm-sans-latin-ext-500-normal.3kt-ux4qy_ne2.woff2)format("woff2"),url(../media/dm-sans-latin-ext-500-normal.3exo923874x5t.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:DM Sans;font-style:normal;font-display:swap;font-weight:500;src:url(../media/dm-sans-latin-500-normal.0brn-8r9pdr2e.woff2)format("woff2"),url(../media/dm-sans-latin-500-normal.0jcw8phz0eanr.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:DM Sans;font-style:normal;font-display:swap;font-weight:600;src:url(../media/dm-sans-latin-ext-600-normal.2h9q_0618j3sz.woff2)format("woff2"),url(../media/dm-sans-latin-ext-600-normal.2uv0s9c16r-jh.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:DM Sans;font-style:normal;font-display:swap;font-weight:600;src:url(../media/dm-sans-latin-600-normal.0oone78si629l.woff2)format("woff2"),url(../media/dm-sans-latin-600-normal.40ad7xuawyzt9.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:DM Sans;font-style:normal;font-display:swap;font-weight:700;src:url(../media/dm-sans-latin-ext-700-normal.2hzb0w6rbfwop.woff2)format("woff2"),url(../media/dm-sans-latin-ext-700-normal.3l0fp675b56tl.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:DM Sans;font-style:normal;font-display:swap;font-weight:700;src:url(../media/dm-sans-latin-700-normal.1a6kzvi7en7g-.woff2)format("woff2"),url(../media/dm-sans-latin-700-normal.33in7pwjke59p.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:Manrope;font-style:normal;font-display:swap;font-weight:700;src:url(../media/manrope-cyrillic-ext-700-normal.24rfadzth-ea_.woff2)format("woff2"),url(../media/manrope-cyrillic-ext-700-normal.24rbunm8ei_ow.woff)format("woff");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Manrope;font-style:normal;font-display:swap;font-weight:700;src:url(../media/manrope-cyrillic-700-normal.16p40z5fn5_zv.woff2)format("woff2"),url(../media/manrope-cyrillic-700-normal.3te-i5lbatid1.woff)format("woff");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Manrope;font-style:normal;font-display:swap;font-weight:700;src:url(../media/manrope-greek-700-normal.345zy40yxw5yy.woff2)format("woff2"),url(../media/manrope-greek-700-normal.106e_m097cdnm.woff)format("woff");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:Manrope;font-style:normal;font-display:swap;font-weight:700;src:url(../media/manrope-vietnamese-700-normal.3spwa7rpbdcfi.woff2)format("woff2"),url(../media/manrope-vietnamese-700-normal.09mmasjjym1bw.woff)format("woff");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Manrope;font-style:normal;font-display:swap;font-weight:700;src:url(../media/manrope-latin-ext-700-normal.14ezai-4kezdq.woff2)format("woff2"),url(../media/manrope-latin-ext-700-normal.3p3hfqi13m0pv.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Manrope;font-style:normal;font-display:swap;font-weight:700;src:url(../media/manrope-latin-700-normal.22dwiag9_pj68.woff2)format("woff2"),url(../media/manrope-latin-700-normal.2dopus2zh5ii9.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:Manrope;font-style:normal;font-display:swap;font-weight:800;src:url(../media/manrope-cyrillic-ext-800-normal.29qbcrtmcyu4t.woff2)format("woff2"),url(../media/manrope-cyrillic-ext-800-normal.066cgovoj794h.woff)format("woff");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Manrope;font-style:normal;font-display:swap;font-weight:800;src:url(../media/manrope-cyrillic-800-normal.2ohq_hu38ve4h.woff2)format("woff2"),url(../media/manrope-cyrillic-800-normal.32dd6yd8_gpxf.woff)format("woff");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Manrope;font-style:normal;font-display:swap;font-weight:800;src:url(../media/manrope-greek-800-normal.0289vjefxfdzw.woff2)format("woff2"),url(../media/manrope-greek-800-normal.35thbajvftyqu.woff)format("woff");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:Manrope;font-style:normal;font-display:swap;font-weight:800;src:url(../media/manrope-vietnamese-800-normal.442n86tidv_77.woff2)format("woff2"),url(../media/manrope-vietnamese-800-normal.3icp_a-119ojs.woff)format("woff");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Manrope;font-style:normal;font-display:swap;font-weight:800;src:url(../media/manrope-latin-ext-800-normal.3brv9jqybigpz.woff2)format("woff2"),url(../media/manrope-latin-ext-800-normal.0jpddng83u627.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Manrope;font-style:normal;font-display:swap;font-weight:800;src:url(../media/manrope-latin-800-normal.037pwi_4ver8j.woff2)format("woff2"),url(../media/manrope-latin-800-normal.0a-2q2cgln7hh.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@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,math,Times New Roman,serif;position:relative}.katex *{border-color:currentColor;-ms-high-contrast-adjust:none!important}.katex .katex-version:after{content:"0.19.0"}.katex .katex-mathml{clip-path:inset(50%);border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.katex .katex-html>.katex-newline{display:block}.katex .katex-base{white-space:nowrap;width:min-content;position:relative}.katex .katex-base,.katex .katex-strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;table-layout:fixed;display:inline-table}.katex .vlist-r{display:table-row}.katex .vlist{vertical-align:bottom;display:table-cell;position:relative}.katex .vlist>span{height:0;display:block;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{width:0;overflow:hidden}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{vertical-align:bottom;width:2px;min-width:2px;font-size:1px;display:table-cell}.katex .katex-vbox{flex-direction:column;align-items:baseline;display:inline-flex}.katex .katex-thinbox{flex-direction:row;width:0;max-width:0;display:inline-flex}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .katex-hdashline,.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-rule,.katex .katex-underline .underline-line,.katex .mfrac .frac-line{min-height:1px}.katex .mspace{display:inline-block}.katex .katex-smash{line-height:0;display:inline}.katex .clap,.katex .llap,.katex .rlap{width:0;position:relative}.katex .clap>.katex-inner,.katex .llap>.katex-inner,.katex .rlap>.katex-inner{position:absolute}.katex .clap>.katex-fix,.katex .llap>.katex-fix,.katex .rlap>.katex-fix{display:inline-block}.katex .llap>.katex-inner{right:0}.katex .clap>.katex-inner,.katex .rlap>.katex-inner{left:0}.katex .clap>.katex-inner>span{margin-left:-50%;margin-right:50%}.katex .katex-rule{border:0 solid;display:inline-block;position:relative}.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-underline .underline-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .katex-hdashline{border-bottom-style:dashed;width:100%;display:inline-block}.katex .sqrt>.katex-root{margin-left:.277778em;margin-right:-.555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .katex-sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .katex-sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .katex-sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .katex-sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .katex-sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .katex-sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .katex-sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .katex-sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .katex-sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .katex-sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .katex-sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .katex-sizing.reset-size2.size1{font-size:.833333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .katex-sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .katex-sizing.reset-size2.size3{font-size:1.16667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .katex-sizing.reset-size2.size4{font-size:1.33333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .katex-sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .katex-sizing.reset-size2.size6{font-size:1.66667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .katex-sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .katex-sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .katex-sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .katex-sizing.reset-size2.size10{font-size:3.45667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .katex-sizing.reset-size2.size11{font-size:4.14667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .katex-sizing.reset-size3.size1{font-size:.714286em}.katex .fontsize-ensurer.reset-size3.size2,.katex .katex-sizing.reset-size3.size2{font-size:.857143em}.katex .fontsize-ensurer.reset-size3.size3,.katex .katex-sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .katex-sizing.reset-size3.size4{font-size:1.14286em}.katex .fontsize-ensurer.reset-size3.size5,.katex .katex-sizing.reset-size3.size5{font-size:1.28571em}.katex .fontsize-ensurer.reset-size3.size6,.katex .katex-sizing.reset-size3.size6{font-size:1.42857em}.katex .fontsize-ensurer.reset-size3.size7,.katex .katex-sizing.reset-size3.size7{font-size:1.71429em}.katex .fontsize-ensurer.reset-size3.size8,.katex .katex-sizing.reset-size3.size8{font-size:2.05714em}.katex .fontsize-ensurer.reset-size3.size9,.katex .katex-sizing.reset-size3.size9{font-size:2.46857em}.katex .fontsize-ensurer.reset-size3.size10,.katex .katex-sizing.reset-size3.size10{font-size:2.96286em}.katex .fontsize-ensurer.reset-size3.size11,.katex .katex-sizing.reset-size3.size11{font-size:3.55429em}.katex .fontsize-ensurer.reset-size4.size1,.katex .katex-sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .katex-sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .katex-sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .katex-sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .katex-sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .katex-sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .katex-sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .katex-sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .katex-sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .katex-sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .katex-sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .katex-sizing.reset-size5.size1{font-size:.555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .katex-sizing.reset-size5.size2{font-size:.666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .katex-sizing.reset-size5.size3{font-size:.777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .katex-sizing.reset-size5.size4{font-size:.888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .katex-sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .katex-sizing.reset-size5.size6{font-size:1.11111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .katex-sizing.reset-size5.size7{font-size:1.33333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .katex-sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .katex-sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .katex-sizing.reset-size5.size10{font-size:2.30444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .katex-sizing.reset-size5.size11{font-size:2.76444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .katex-sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .katex-sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .katex-sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .katex-sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .katex-sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .katex-sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .katex-sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .katex-sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .katex-sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .katex-sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .katex-sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .katex-sizing.reset-size7.size1{font-size:.416667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .katex-sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .katex-sizing.reset-size7.size3{font-size:.583333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .katex-sizing.reset-size7.size4{font-size:.666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .katex-sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .katex-sizing.reset-size7.size6{font-size:.833333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .katex-sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .katex-sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .katex-sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .katex-sizing.reset-size7.size10{font-size:1.72833em}.katex .fontsize-ensurer.reset-size7.size11,.katex .katex-sizing.reset-size7.size11{font-size:2.07333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .katex-sizing.reset-size8.size1{font-size:.347222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .katex-sizing.reset-size8.size2{font-size:.416667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .katex-sizing.reset-size8.size3{font-size:.486111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .katex-sizing.reset-size8.size4{font-size:.555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .katex-sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .katex-sizing.reset-size8.size6{font-size:.694444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .katex-sizing.reset-size8.size7{font-size:.833333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .katex-sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .katex-sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .katex-sizing.reset-size8.size10{font-size:1.44028em}.katex .fontsize-ensurer.reset-size8.size11,.katex .katex-sizing.reset-size8.size11{font-size:1.72778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .katex-sizing.reset-size9.size1{font-size:.289352em}.katex .fontsize-ensurer.reset-size9.size2,.katex .katex-sizing.reset-size9.size2{font-size:.347222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .katex-sizing.reset-size9.size3{font-size:.405093em}.katex .fontsize-ensurer.reset-size9.size4,.katex .katex-sizing.reset-size9.size4{font-size:.462963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .katex-sizing.reset-size9.size5{font-size:.520833em}.katex .fontsize-ensurer.reset-size9.size6,.katex .katex-sizing.reset-size9.size6{font-size:.578704em}.katex .fontsize-ensurer.reset-size9.size7,.katex .katex-sizing.reset-size9.size7{font-size:.694444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .katex-sizing.reset-size9.size8{font-size:.833333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .katex-sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .katex-sizing.reset-size9.size10{font-size:1.20023em}.katex .fontsize-ensurer.reset-size9.size11,.katex .katex-sizing.reset-size9.size11{font-size:1.43981em}.katex .fontsize-ensurer.reset-size10.size1,.katex .katex-sizing.reset-size10.size1{font-size:.24108em}.katex .fontsize-ensurer.reset-size10.size2,.katex .katex-sizing.reset-size10.size2{font-size:.289296em}.katex .fontsize-ensurer.reset-size10.size3,.katex .katex-sizing.reset-size10.size3{font-size:.337512em}.katex .fontsize-ensurer.reset-size10.size4,.katex .katex-sizing.reset-size10.size4{font-size:.385728em}.katex .fontsize-ensurer.reset-size10.size5,.katex .katex-sizing.reset-size10.size5{font-size:.433944em}.katex .fontsize-ensurer.reset-size10.size6,.katex .katex-sizing.reset-size10.size6{font-size:.48216em}.katex .fontsize-ensurer.reset-size10.size7,.katex .katex-sizing.reset-size10.size7{font-size:.578592em}.katex .fontsize-ensurer.reset-size10.size8,.katex .katex-sizing.reset-size10.size8{font-size:.694311em}.katex .fontsize-ensurer.reset-size10.size9,.katex .katex-sizing.reset-size10.size9{font-size:.833173em}.katex .fontsize-ensurer.reset-size10.size10,.katex .katex-sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .katex-sizing.reset-size10.size11{font-size:1.19961em}.katex .fontsize-ensurer.reset-size11.size1,.katex .katex-sizing.reset-size11.size1{font-size:.200965em}.katex .fontsize-ensurer.reset-size11.size2,.katex .katex-sizing.reset-size11.size2{font-size:.241158em}.katex .fontsize-ensurer.reset-size11.size3,.katex .katex-sizing.reset-size11.size3{font-size:.281351em}.katex .fontsize-ensurer.reset-size11.size4,.katex .katex-sizing.reset-size11.size4{font-size:.321543em}.katex .fontsize-ensurer.reset-size11.size5,.katex .katex-sizing.reset-size11.size5{font-size:.361736em}.katex .fontsize-ensurer.reset-size11.size6,.katex .katex-sizing.reset-size11.size6{font-size:.401929em}.katex .fontsize-ensurer.reset-size11.size7,.katex .katex-sizing.reset-size11.size7{font-size:.482315em}.katex .fontsize-ensurer.reset-size11.size8,.katex .katex-sizing.reset-size11.size8{font-size:.578778em}.katex .fontsize-ensurer.reset-size11.size9,.katex .katex-sizing.reset-size11.size9{font-size:.694534em}.katex .fontsize-ensurer.reset-size11.size10,.katex .katex-sizing.reset-size11.size10{font-size:.833601em}.katex .fontsize-ensurer.reset-size11.size11,.katex .katex-sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{width:.12em;display:inline-block}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .katex-accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .katex-accent .accent-body{position:relative}.katex .katex-accent .accent-body:not(.accent-full){width:0}.katex .katex-overlay{display:block}.katex .mtable .vertical-separator{min-width:1px;display:inline-block}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;height:inherit;width:100%;display:block;position:absolute}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;min-width:0;max-width:none;min-height:0;max-height:none}.katex .katex-stretchy{width:100%;display:block;position:relative;overflow:hidden}.katex .katex-stretchy:after,.katex .katex-stretchy:before{content:""}.katex .hide-tail{width:100%;position:relative;overflow:hidden}.katex .halfarrow-left{width:50.2%;position:absolute;left:0;overflow:hidden}.katex .halfarrow-right{width:50.2%;position:absolute;right:0;overflow:hidden}.katex .brace-left{width:25.1%;position:absolute;left:0;overflow:hidden}.katex .brace-center{width:50%;position:absolute;left:25%;overflow:hidden}.katex .brace-right{width:25.1%;position:absolute;right:0;overflow:hidden}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{box-sizing:border-box;border:.04em solid}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .katex-sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{box-sizing:border-box;border-top:.049em solid;border-right:.049em solid;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .reflectbox{display:inline-block;transform:scaleX(-1)}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{text-align:left;display:inline-block;position:absolute;right:calc(50% + .3em)}.katex .cd-label-right{text-align:right;display:inline-block;position:absolute;left:calc(50% + .3em)}.katex-display{text-align:center;margin:1em 0;display:block}.katex-display>.katex{text-align:center;white-space:nowrap;display:block}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.katex-tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.katex-tag{left:0;right:auto}.katex-display.fleqn>.katex{text-align:left;padding-left:2em}body{counter-reset:katexEqnNo mmlEqnNo}
:root{--paper:#f8f7f2;--white:#fffefb;--ink:#202e29;--muted:#65726b;--green:#16624d;--green-dark:#104b3c;--line:#dce1d8;--mint:#edf2ea;--ochre:#aa592a;--serif:Georgia, "Times New Roman", serif;--sans:"DM Sans", Arial, sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{background:var(--paper);color:var(--ink);font-family:var(--sans);margin:0;font-size:15px;line-height:1.65}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input,summary{-webkit-tap-highlight-color:transparent}button,summary{cursor:pointer}button{color:inherit}button:disabled{cursor:default;opacity:.5}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline-offset:5px;outline:3px solid #c17b35}button{transition:background .15s,color .15s}h1,h2,h3,p{margin-top:0}h1,h2,h3{font-weight:400;line-height:1.12}h1,h2{font-family:var(--serif)}h1{letter-spacing:-2.4px;font-size:clamp(44px,5.2vw,76px)}h2{letter-spacing:-.9px;font-size:34px}h3{font-size:23px}em{color:var(--green);font-weight:400}p{margin-bottom:18px}.wrap{max-width:1320px;margin:0 auto;padding:0 48px}.muted{color:var(--muted)}.micro{font-size:12px;line-height:1.6}.eyebrow{font-family:"Manrope", var(--sans);letter-spacing:1.65px;color:var(--green);font-size:10px;font-weight:700;line-height:1.6}.button{background:var(--green);color:#fff;border:1px solid var(--green);border-radius:5px;justify-content:center;align-items:center;gap:22px;padding:14px 22px;font-size:13px;font-weight:600;line-height:1.5;display:inline-flex}.button:hover{background:var(--green-dark)}.button.small{padding:10px 16px;font-size:12px}.text-link{color:var(--green);font-size:13px;font-weight:600}.text-link:hover{text-decoration:underline}.pill{letter-spacing:1px;color:var(--green);white-space:nowrap;background:#e8efe5;border-radius:4px;padding:5px 9px;font-size:9px;font-weight:700;display:inline-flex}.skip-link{background:var(--white);z-index:10;padding:15px;position:fixed;top:-80px;left:10px}.skip-link:focus{top:10px}.skip-link:not(:focus){clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;padding:0;overflow:hidden}.header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:20px;max-width:1440px;height:88px;margin:auto;padding:0 48px;display:flex}.brand{font-family:"Manrope", var(--sans);letter-spacing:-.8px;align-items:center;font-size:21px;font-weight:800;line-height:1;display:inline-flex}.brand>span:not(.brand-mark):not(.beta){color:var(--green)}.brand-mark{border:1px solid var(--green);width:35px;height:35px;font-family:var(--serif);color:var(--green);border-radius:50%;place-items:center;margin-right:10px;padding-bottom:4px;font-size:32px;font-weight:400;display:grid}.beta{letter-spacing:1px;color:var(--muted);background:#e7eade;border-radius:3px;margin-left:10px;padding:5px 6px;font-size:8px}.header nav{color:#526359;gap:30px;font-size:12px;display:flex}.header nav a:hover{color:var(--green);text-decoration:underline}.footer{border-top:1px solid var(--line);align-items:center;gap:30px;max-width:1320px;margin:80px auto 0;padding:30px 48px;display:flex}.footer .brand{font-size:17px}.footer p{color:var(--muted);margin:0;font-size:12px}.footer>span{color:var(--muted);margin-left:auto;font-size:10px}.hero{grid-template-columns:1.05fr 1fr;align-items:center;gap:66px;padding-top:76px;padding-bottom:65px;display:grid}.hero .eyebrow{margin-bottom:24px}.status-dot{background:var(--green);border-radius:50%;width:6px;height:6px;margin-bottom:1px;margin-right:8px;display:inline-block}.hero h1{margin-bottom:25px;font-size:clamp(48px,4.8vw,68px);line-height:1.08}.hero-copy{max-width:440px;color:var(--muted);font-size:15px;line-height:1.8}.actions{flex-wrap:wrap;align-items:center;gap:22px;margin:28px 0 20px;display:flex}.hero-board{background:#edf1e8;border:1px solid #d6dfd0;border-radius:9px;padding:26px 26px 0;transform:rotate(-1.3deg);box-shadow:8px 13px #eeede5}.board-heading{justify-content:space-between;align-items:center;gap:10px;display:flex}.hero .board-heading .eyebrow{margin:0;font-size:8px}.board-heading .pill{background:#fffef6;font-size:8px}.hero-board h2{margin:23px 0 8px;font-size:31px}.hero-board svg{width:100%;display:block}.board-note{border-top:1px solid #ced9c8;align-items:center;gap:19px;padding:22px 0;display:flex}.note-number{font-family:var(--serif);color:var(--green);font-size:29px;font-style:italic}.board-note p{margin:0;font-size:12px;line-height:1.5}.board-note a{border:1px solid #b0c1af;border-radius:50%;place-items:center;width:34px;height:34px;margin-left:auto;display:grid}.method-band{border-block:1px solid var(--line);background:#f0f1e9}.method{justify-content:space-between;align-items:center;gap:25px;padding-block:25px;display:flex}.method p{letter-spacing:1.2px;margin:0;font-size:9px;line-height:1.9}.method p strong{letter-spacing:0;font-size:12px;font-weight:500}.method>span{font-family:var(--serif);color:#829389;white-space:nowrap;font-size:22px}.method b{font-family:var(--sans);color:var(--ink);margin-left:9px;font-size:12px;font-weight:500}.introduction{justify-content:space-between;align-items:center;gap:100px;padding-top:60px;padding-bottom:30px;display:flex}.introduction h2{margin:0;font-size:38px}.introduction>p{max-width:440px;color:var(--muted);margin:0;font-size:14px}.entry-grid{grid-template-columns:repeat(3,1fr);gap:18px;display:grid}.entry-card{border:1px solid var(--line);background:#fcfbf6;border-radius:7px;padding:28px;display:block}.entry-card:hover{border-color:#91ad9a}.entry-card.featured{background:#edf1e8}.entry-card h3{font-family:var(--serif);margin:17px 0;font-size:27px}.entry-card p{color:var(--muted);min-height:65px;font-size:13px}.studio-page{padding-top:26px}.breadcrumb{color:var(--muted);flex-wrap:wrap;gap:12px;margin-bottom:30px;font-size:11px;display:flex}.breadcrumb a:hover{color:var(--green);text-decoration:underline}.studio-heading{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.studio-heading p{margin:0}.studio-heading>p:last-child{font-family:var(--serif);color:var(--muted);font-size:15px;font-style:italic}.studio-grid{grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);align-items:start;gap:26px;display:grid}.problem-card{background:var(--white);border:1px solid var(--line);border-radius:8px;padding:30px}.problem-column{min-width:0}.problem-meta{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.problem-meta>span:nth-child(2){color:var(--muted);font-size:10px}.bookmark{color:var(--green);background:0 0;border:0;margin-left:auto;padding:5px 0;font-size:11px}.bookmark[aria-pressed=true]{font-weight:700}.question-number{margin:29px 0 13px}.problem-card h1{letter-spacing:-1.3px;margin-bottom:22px;font-size:38px;line-height:1.15}.question-text{font-size:15px;line-height:1.95}.question-ask{margin-bottom:22px;font-size:15px}.answer-options{border:0;gap:10px;margin:0;padding:0;display:grid}.answer-options legend{color:var(--muted);margin-bottom:12px;font-size:10px}.answer-option{cursor:pointer;background:#fffefb;border:1px solid #dce1d7;border-radius:5px;align-items:center;gap:12px;padding:14px 15px;font-size:13px;display:flex;position:relative}.answer-option input{accent-color:var(--green);width:15px;height:15px;margin:0}.answer-option.selected{border-color:var(--green);background:#f0f5ed}.answer-option.correct{box-shadow:inset 3px 0 var(--green)}.answer-option.incorrect{box-shadow:inset 3px 0 #b07535}.option-letter{color:var(--muted);margin-right:5px;font-size:11px;font-weight:600}.answer-actions{align-items:center;gap:19px;margin-top:23px;display:flex}.answer-actions .micro{max-width:135px;font-size:10px}.hint-section{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:10px;margin-top:26px;padding-top:23px;display:flex}.hint-section .eyebrow{letter-spacing:1.25px;font-size:8px}.hint-section p{color:var(--muted);margin:3px 0 0;font-size:12px}.secondary-button{white-space:nowrap;background:#fffefb;border:1px solid #becbbb;border-radius:5px;align-items:center;gap:14px;padding:10px 13px;font-size:11px;display:inline-flex}.secondary-button:hover{background:var(--mint)}.hint{background:#f0f3ea;border-radius:5px;gap:14px;margin-top:12px;padding:16px;font-size:13px;display:flex}.hint-number{font-family:var(--serif);color:var(--green);font-size:23px}.hint p{color:#556559;margin:5px 0 0;font-size:13px}.hint strong{font-size:13px}.solution-toggle{border:0;border-top:1px solid var(--line);width:100%;color:var(--green);background:0 0;justify-content:space-between;align-items:center;margin-top:25px;padding:20px 0 0;font-size:12px;font-weight:600;display:flex}.feedback{background:#edf4e9;border-radius:5px;margin-top:20px;padding:18px;font-size:13px}.feedback.retry{background:#fbf2e5}.feedback p{margin:7px 0}.feedback .micro{color:#586858}.solution-intro{margin-top:30px}.solution-intro h2{font-size:30px}.solution-step{border-top:1px solid var(--line);gap:17px;margin:23px 0 0;padding:22px 0 0;display:flex}.step-number{background:var(--mint);width:26px;height:26px;color:var(--green);border-radius:50%;flex-shrink:0;place-items:center;font-size:12px;display:grid}.solution-step>div{flex:1;min-width:0}.solution-step h3{font-family:var(--sans);margin-top:2px;font-size:15px;font-weight:600}.solution-step p{color:#526258;margin-bottom:12px;font-size:13px}.solution-step summary,.transfer summary{color:var(--green);padding:7px 0;font-size:12px;font-weight:600}.solution-step details p{margin-top:10px}.independent-check,.transfer{background:var(--mint);border-radius:5px;margin-top:25px;padding:20px;font-size:13px}.independent-check p,.transfer p{margin:9px 0 0}.transfer{background:#f4f0e6}.math-block{max-width:100%;padding:4px 0;font-size:.9em;overflow:auto hidden}.katex-display{margin:.5em 0}.katex-display>.katex{text-align:left}.math-inline{vertical-align:baseline;max-width:100%;display:inline-block}.reflection{border:1px solid var(--line);background:#f0f1e9;border-radius:7px;margin-top:20px;padding:27px}.reflection h2{margin-bottom:10px;font-size:25px}.reflection p{color:var(--muted);font-size:12px}.reflection .eyebrow{color:var(--green);margin-bottom:12px;font-size:9px}.confidence-buttons{flex-wrap:wrap;gap:9px;margin-bottom:16px;display:flex}.confidence-buttons button{background:var(--white);border:1px solid #c7d1c3;border-radius:20px;padding:8px 12px;font-size:11px}.confidence-buttons button[aria-pressed=true]{background:var(--green);color:#fff;border-color:var(--green)}.reflection>p:last-child{margin-bottom:0;font-size:10px}.studio-aside{min-width:0}.lab{background:#edf1e8;border:1px solid #d4dfcd;border-radius:8px;padding:25px}.lab-top{justify-content:space-between;align-items:center;gap:10px;display:flex}.lab-top .eyebrow{margin-bottom:8px;font-size:9px}.lab h2{letter-spacing:-.7px;margin:0;font-size:29px}.lab-top .pill{background:#fcfbf3;font-size:8px}.lab-intro{color:var(--muted);max-width:340px;margin:14px 0 8px;font-size:12px;line-height:1.7}.motion-svg{width:100%;height:auto;display:block}.axis-label{fill:#647465;font-size:10px;font-family:var(--sans)}.apex-label{fill:var(--green);font-size:11px;font-family:var(--sans)}.lab-legend{color:var(--muted);justify-content:center;gap:25px;margin:3px 0 24px;font-size:9px;display:flex}.lab-legend>span{align-items:center;gap:7px;display:flex}.lab-legend i{background:var(--green);width:15px;height:2px;display:inline-block}.lab-legend i.ochre-line{background:var(--ochre)}.lab-controls{align-items:center;gap:17px;display:flex}.play-button{background:var(--green);color:#fff;border:0;border-radius:50%;flex-shrink:0;width:38px;height:38px;font-size:12px}.lab-controls>div{flex:1;min-width:0}.lab label{color:var(--muted);justify-content:space-between;font-size:10px;display:flex}.lab output{color:var(--ink);font-weight:600}input[type=range]{width:100%;height:20px;accent-color:var(--green);cursor:pointer;margin:4px 0 0}.phase-buttons{justify-content:space-between;gap:8px;margin:15px 0 21px;padding-left:55px;display:flex}.phase-buttons button{color:var(--muted);background:0 0;border:1px solid #0000;border-radius:4px;padding:5px 8px;font-size:9px}.phase-buttons button[aria-pressed=true]{color:var(--green);background:#fffdf6;border-color:#c1ceba}.readouts{border-block:1px solid #d2dccb;grid-template-columns:repeat(3,1fr);gap:9px;padding:17px 0;display:grid}.readouts>div{flex-direction:column;gap:6px;display:flex}.readouts span{letter-spacing:.9px;color:var(--muted);font-size:7px}.readouts strong{font-variant-numeric:tabular-nums;color:var(--green);font-size:19px;font-weight:500}.readouts small{color:var(--muted);font-size:9px;font-weight:400}.explore-details{margin-top:18px;font-size:11px}.explore-details summary{color:var(--green);font-size:11px;font-weight:600}.explore-details p{margin:12px 0}.text-button{color:var(--green);background:0 0;border:0;padding:0;font-size:11px;text-decoration:underline}.lab-footnote{color:var(--muted);margin:21px 0 0;font-size:9px;line-height:1.7}.concept-link{border:1px solid var(--line);background:#fffefb;border-radius:7px;align-items:center;gap:19px;margin-top:20px;padding:22px;display:flex}.concept-link .eyebrow{font-size:8px}.concept-link h3{font-family:var(--serif);margin:5px 0 7px;font-size:23px}.concept-link p{color:var(--muted);margin:0;font-size:11px}.concept-icon{background:var(--mint);width:37px;height:37px;color:var(--green);border-radius:50%;flex-shrink:0;place-items:center;font-size:20px;display:grid}.original-note{color:var(--muted);padding:25px 8px;font-size:10px;line-height:1.8}.original-note strong{color:#45584c;font-size:11px}.original-note p{margin:7px 0 0}.concept-page{padding-top:30px}.concept-article{max-width:820px;margin:50px auto}.concept-article h1{font-size:64px}.lead{color:var(--muted);max-width:760px;font-size:18px;line-height:1.8}.concept-article h2{margin-top:42px;font-size:32px}.concept-article>p{line-height:1.9}.assumptions{background:var(--mint);border-left:3px solid var(--green);margin:30px 0;padding:23px 27px;font-size:14px}.assumptions p{color:var(--muted);margin:8px 0 0}.equation-pair{grid-template-columns:1fr 1fr;gap:18px;margin:25px 0;display:grid}.equation-pair section{border:1px solid var(--line);background:var(--white);border-radius:6px;min-width:0;padding:24px}.equation-pair p{color:var(--muted);margin:12px 0 0;font-size:12px}.concept-cta{background:var(--mint);border-radius:7px;margin:42px 0 20px;padding:25px}.concept-cta h2{margin-top:10px}.pricing-page{padding-top:70px}.pricing-page h1{margin-bottom:23px;font-size:64px}.pricing-page>.lead{max-width:650px}.pricing-card{border:1px solid var(--line);background:var(--white);border-radius:9px;grid-template-columns:1fr 1.1fr;gap:55px;max-width:1000px;margin:40px 0;padding:43px;display:grid}.pricing-card>div:first-child{border-right:1px solid var(--line);padding-right:35px}.price{font-family:var(--serif);letter-spacing:-2px;margin:20px 0;font-size:58px}.price span{letter-spacing:0;font-size:14px;font-family:var(--sans);color:var(--muted);margin-left:9px}.pricing-card p{font-size:13px}.pricing-card .regular-price{color:var(--muted);margin-top:-8px}.pricing-card .micro{margin-top:18px;font-size:11px}.pricing-card h2{font-size:28px}.benefits{padding:0;font-size:13px;list-style:none}.benefits li{padding:9px 0 9px 22px;position:relative}.benefits li:before{content:"✓";color:var(--green);position:absolute;left:0}.pricing-note{max-width:750px;color:var(--muted);font-size:13px}@media (min-width:1500px){body{font-size:16px}.wrap{max-width:1420px}.hero{gap:95px}.hero h1{font-size:78px}.problem-card h1{font-size:42px}}@media (max-width:1050px){.wrap,.header{padding-inline:28px}.hero{gap:36px}.hero h1{font-size:52px}.hero-board{padding:18px 18px 0}.board-heading .eyebrow{letter-spacing:.7px}.header nav{gap:20px}.method{gap:15px}.method b{font-size:11px}.method>span{font-size:19px}.introduction{gap:45px}.studio-grid{grid-template-columns:minmax(0,1.12fr) minmax(0,1fr);gap:18px}.problem-card{padding:23px}.problem-card h1{font-size:34px}.lab{padding:20px}.lab-top .pill{display:none}.answer-actions{flex-wrap:wrap;gap:12px}.answer-actions .micro{max-width:none}.readouts strong{font-size:16px}.readouts small{font-size:8px}.problem-meta .bookmark{margin-left:0}.footer{padding-inline:28px}.footer>span{max-width:240px}}@media (max-width:760px){.header{flex-wrap:wrap;gap:18px;height:auto;min-height:78px;padding:19px 22px}.brand{font-size:20px}.header>.button{display:none}.header nav{gap:22px;margin-left:auto;font-size:11px}.brand-mark{width:29px;height:29px;font-size:27px}.beta{margin-left:7px;font-size:7px}.wrap{padding-inline:22px}.hero{grid-template-columns:1fr;gap:37px;padding-top:45px;padding-bottom:45px}.hero h1{letter-spacing:-2px;font-size:57px}.hero-copy{max-width:500px}.hero-board{width:100%;max-width:530px;margin:0 auto;padding:22px 22px 0}.hero-board h2{font-size:31px}.hero-board svg{max-height:310px}.method{grid-template-columns:1fr 1fr;gap:20px;padding-block:25px;display:grid}.method>p{grid-column:1/-1}.method>span{font-size:24px}.method b{font-size:12px}.introduction{padding-top:43px;padding-bottom:22px;display:block}.introduction h2{margin-bottom:20px;font-size:35px}.entry-grid{grid-template-columns:1fr}.entry-card p{min-height:0}.entry-card{padding:25px}.entry-card h3 br{display:none}.footer{flex-wrap:wrap;gap:17px;margin-top:50px;padding:25px 22px}.footer>span{flex-basis:100%;max-width:none;margin:0}.studio-page{padding-top:23px}.breadcrumb{margin-bottom:25px}.studio-heading{align-items:start;gap:10px}.studio-heading>p:last-child{font-size:12px}.studio-heading .eyebrow{font-size:9px}.studio-grid{grid-template-columns:1fr}.problem-card{padding:23px}.problem-card h1{font-size:36px}.studio-aside{grid-row:2}.question-text,.question-ask{font-size:14px}.lab{padding:24px}.lab h2{font-size:31px}.lab-top .pill{display:inline-flex}.motion-svg{max-height:360px}.readouts strong{font-size:23px}.readouts small{font-size:10px}.readouts span{font-size:8px}.lab-legend{font-size:10px}.phase-buttons button{font-size:11px}.lab-controls label,.explore-details summary{font-size:12px}.lab-footnote{font-size:10px}.concept-article{margin-top:34px}.concept-article h1,.pricing-page h1{font-size:48px}.lead{font-size:16px}.equation-pair{grid-template-columns:1fr}.pricing-page{padding-top:43px}.pricing-card{grid-template-columns:1fr;gap:28px;padding:26px}.pricing-card>div:first-child{border-right:0;border-bottom:1px solid var(--line);padding:0 0 25px}.price{font-size:54px}.pricing-card p{font-size:13px}}@media (max-width:420px){.header{gap:15px}.header nav{justify-content:space-between;width:100%;margin:0}.hero h1{font-size:49px}.hero .actions{gap:20px}.hero-board h2{font-size:27px}.board-heading .eyebrow{font-size:7px}.problem-card{padding:18px}.problem-card h1{font-size:32px}.problem-meta{gap:8px}.problem-meta>span:nth-child(2){font-size:9px}.bookmark{font-size:10px}.answer-option{gap:8px;padding:13px 10px;font-size:11px}.hint-section{align-items:flex-start}.hint-section p{max-width:135px}.hint-section .eyebrow{font-size:7px}.secondary-button{gap:6px;padding:9px;font-size:10px}.lab{padding:18px}.readouts strong{font-size:18px}.readouts small{font-size:8px}.readouts span{font-size:7px}.confidence-buttons button{font-size:10px}.hero-board{transform:none}.footer p{font-size:10px}}.tutor-prompt{border-top:1px solid var(--line);min-width:0;margin:20px 0;padding-top:12px;font-size:14px;line-height:1.65}.tutor-prompt>summary,.equation-explanation>summary{cursor:pointer;color:var(--green-dark);padding:6px 0;font-weight:600}.tutor-prompt>p{margin:12px 0;font-size:14px;line-height:1.65}.tutor-prompt-actions{flex-wrap:wrap;align-items:center;gap:16px;margin-top:16px;display:flex}.tutor-prompt pre{white-space:pre-wrap;overflow-wrap:anywhere;font:inherit;background:var(--white);border:1px solid var(--line);-webkit-user-select:text;user-select:text;border-radius:8px;max-height:300px;margin:12px 0 0;padding:16px;overflow:auto}.tutor-prompt .tutor-copy-status{min-height:1.65em;color:var(--green-dark);margin-bottom:4px}.tutor-prompt .tutor-assistance-note{color:var(--muted);font-size:12px}.equation-explanation{border-top:1px solid #cbd7c9;margin-top:18px;padding-top:8px;font-size:14px}.equation-guide-body h4{font:600 14px/1.5 var(--sans);color:var(--ink);margin:24px 0 8px}.equation-guide-body p{margin:8px 0}.equation-symbols{margin:12px 0}.equation-symbols>div{border-bottom:1px solid #dce3d8;grid-template-columns:minmax(60px,100px) minmax(0,1fr);gap:16px;padding:12px 0;display:grid}.equation-symbols dt{overflow-x:auto}.equation-symbols dd{margin:0;line-height:1.7}.equation-symbols small{color:var(--muted);margin-top:3px;display:block}.floating-diagram,.capillary-diagram{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:8px;display:grid}.floating-diagram figcaption,.capillary-diagram figcaption{grid-column:1/-1}@media (max-width:640px){.floating-diagram,.capillary-diagram{grid-template-columns:minmax(0,1fr)}}@media (max-width:520px){.equation-symbols>div{grid-template-columns:minmax(0,1fr);gap:6px}.tutor-prompt-actions button{min-height:44px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition:none!important;animation:none!important}}.pipe-flow-lab>label{margin:20px 0;display:block}.pipe-flow-lab input[type=range]{width:100%;margin-top:12px;display:block}.gas-path-lab{gap:.8rem;display:grid}.gas-path-lab label{gap:.35rem;display:grid}.gas-path-lab select{width:100%;min-width:0;font:inherit;color:#173b2d;background:#fffefa;border:1px solid #aebeb3;border-radius:.5rem;padding:.65rem}.gas-path-lab svg{fill:#24473a;justify-self:center;width:100%;max-width:620px;font:12px sans-serif}.gas-path-lab input[type=range]{accent-color:#16624d;width:100%}
select{font:inherit;color:inherit}select:focus-visible{outline-offset:4px;outline:3px solid #c17b35}.catalogue-page{padding-top:70px;padding-bottom:90px}.catalogue-hero{max-width:850px;margin-bottom:42px}.catalogue-hero h1{margin:22px 0;font-size:clamp(42px,5vw,68px)}.catalogue-hero .lead{max-width:690px}.catalogue-stats{border-block:1px solid var(--line);gap:40px;margin:30px 0 20px;padding:23px 0;display:flex}.catalogue-stats span{color:var(--muted);font-size:12px}.catalogue-stats strong{font-size:30px;font-family:var(--serif);color:var(--green);font-weight:400;line-height:1.3;display:block}.catalogue-filters{background:var(--mint);border:1px solid var(--line);border-radius:12px;grid-template-columns:1.3fr 1fr 1fr 1.1fr;gap:16px;padding:22px;display:grid}.catalogue-filters label{gap:8px;min-width:0;font-size:12px;font-weight:600;display:grid}.catalogue-filters input,.catalogue-filters select{background:var(--white);border:1px solid #ccd5cb;border-radius:5px;width:100%;min-width:0;padding:11px 10px;font-size:13px}.practice-filters{grid-template-columns:1.4fr 1fr 1fr}.catalogue-count{color:var(--muted);justify-content:space-between;align-items:center;gap:20px;padding:18px 0;font-size:12px;display:flex}.catalogue-count p{margin:0}.catalogue-area{margin-top:32px}.area-heading{border-bottom:1px solid var(--line);justify-content:space-between;align-items:baseline;gap:15px;margin-bottom:18px;display:flex}.area-heading h2{margin-bottom:18px;font-size:29px}.area-heading>span{color:var(--muted);white-space:nowrap;font-size:12px}.concept-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;display:grid}.concept-tile{border:1px solid var(--line);background:#ffffff70;border-radius:8px;flex-direction:column;padding:22px 20px 15px;transition:border-color .15s,background .15s;display:flex}.concept-tile:hover,.practice-tile:hover{background:var(--white);border-color:#7da493}.concept-tile.written{background:#eaf1e7;border-color:#b1c8b6}.concept-tile .eyebrow{letter-spacing:1.1px;font-size:8px}.concept-tile h3{font-family:var(--serif);margin:16px 0 26px;font-size:21px;line-height:1.2}.tile-action{color:var(--green);justify-content:space-between;gap:12px;margin-top:auto;font-size:12px;font-weight:600;display:flex}.practice-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;display:grid}.practice-tile{border:1px solid var(--line);background:var(--white);border-radius:10px;flex-direction:column;padding:28px;display:flex}.tile-meta{justify-content:space-between;align-items:center;gap:8px;margin-bottom:26px;display:flex}.tile-meta .eyebrow{font-size:8px}.practice-number{color:#b1bcb1;font-family:var(--serif);font-size:27px}.practice-tile h2{font-size:29px;line-height:1.17}.practice-tile p{color:var(--muted);font-size:14px}.topic-chips{flex-wrap:wrap;gap:6px;margin:4px 0 28px;display:flex}.topic-chips span{background:var(--mint);border-radius:4px;padding:4px 8px;font-size:10px}.empty-state{text-align:center;background:var(--mint);border-radius:8px;padding:50px 25px}.lesson-section{border-top:1px solid var(--line);margin-top:34px;padding-top:32px}.lesson-section h2{margin-top:14px}.prerequisites{color:var(--green);flex-wrap:wrap;gap:9px 18px;margin-top:26px;font-size:13px;display:flex}.prerequisites>span{width:100%}.pitfall{border-left:3px solid var(--ochre);background:#f5efe4;margin:36px 0;padding:24px}.pitfall p{margin:10px 0 0}.lesson-practice{margin:45px 0}.lesson-practice>a{border:1px solid var(--line);background:var(--mint);border-radius:8px;gap:8px;margin-top:12px;padding:20px;display:grid}.lesson-practice>a>span{color:var(--muted);font-size:12px}.mapped-notice{background:var(--mint);border:1px solid var(--line);border-radius:12px;padding:30px}.model-notes{border:1px solid var(--line);background:var(--paper);border-radius:7px;margin:20px 0 28px;padding:14px 18px;font-size:13px}.model-notes summary{font-weight:600}.model-notes p{color:var(--muted);margin-bottom:0}.guided-panel{border-top:1px solid var(--line);margin-top:28px;padding-top:28px}.guided-intro h2{margin:10px 0;font-size:29px}.guided-intro p{color:var(--muted);font-size:13px}.guided-content{background:#f2f5ec;border:1px solid #d7e0d0;border-radius:9px;margin-top:25px;padding:22px}.step-track{flex-wrap:wrap;gap:8px;padding-bottom:20px;display:flex}.step-track button{background:var(--white);border:1px solid #cad6c7;border-radius:20px;padding:7px 12px;font-size:12px}.step-track button[aria-current=step]{background:var(--green);color:#fff;border-color:var(--green)}.guided-step h3{font-size:24px;font-family:var(--serif)}.guided-step p,.guided-step li,.guided-step details{font-size:14px}.guided-step .eyebrow{font-size:10px}.why-note{border-top:1px solid #d7e0d0;padding:15px 0}.why-note p{margin-top:7px;margin-bottom:0}.guided-step li{margin-bottom:9px}.step-actions{justify-content:space-between;align-items:center;gap:10px;margin-top:24px;display:flex}.checkpoint{background:var(--mint);border:1px solid var(--line);border-radius:8px;margin:25px 0;padding:24px}.guided-content>.checkpoint{background:0 0;border:0;padding:0}.checkpoint h3{font-family:var(--serif);font-size:24px;line-height:1.25}.checkpoint-options{gap:8px;display:grid}.checkpoint-options button{text-align:left;background:var(--white);border:1px solid #c9d7c8;border-radius:6px;padding:12px 14px;font-size:13px;line-height:1.5}.checkpoint-options button[aria-pressed=true]{border-color:var(--green);box-shadow:inset 3px 0 var(--green)}.checkpoint-feedback{padding-top:18px;font-size:14px}.checkpoint-feedback p{margin:7px 0 0}.related-concepts{margin-top:26px}.related-concepts .concept-link{margin-top:12px}.related-concepts .concept-link h3{font-size:23px}.study-path{background:var(--mint);border:1px solid var(--line);border-radius:8px;margin-top:22px;padding:24px}.study-path ol{padding-left:18px;font-size:13px}.study-path li{margin-bottom:10px;padding-left:4px}.study-path .text-link{font-size:12px}.lab-view-switch{border-bottom:1px solid #c9d7c8;gap:20px;margin:15px 0;display:flex}.lab-view-switch button{color:var(--muted);background:0 0;border:0;padding:9px 3px;font-size:13px}.lab-view-switch button[aria-pressed=true]{color:var(--green);box-shadow:0 2px var(--green);font-weight:600}.graph-choices{flex-wrap:wrap;gap:6px;display:flex}.graph-choices button{background:var(--white);border:1px solid #cad6c7;border-radius:4px;padding:5px 8px;font-size:10px}.graph-choices button[aria-pressed=true]{background:var(--green);color:#fff}.graph-caption{color:var(--muted);margin-top:10px;font-size:12px;line-height:1.6}.graph-caption strong{color:var(--ink)}.playback-choice{justify-content:space-between;align-items:center;margin:12px 0;font-size:11px;display:flex}.playback-choice select{background:var(--white);border:1px solid #cad6c7;border-radius:4px;padding:4px 8px;font-size:11px}@media (max-width:1000px){.concept-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.catalogue-filters,.practice-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:640px){.catalogue-page{padding-top:35px}.catalogue-hero h1{letter-spacing:-1.5px;font-size:42px}.catalogue-stats{gap:20px}.catalogue-stats span{font-size:10px}.catalogue-filters{gap:15px 10px;padding:16px}.catalogue-filters label:first-child{grid-column:1/-1}.catalogue-filters label{font-size:10px}.catalogue-filters input,.catalogue-filters select{font-size:12px}.catalogue-count{font-size:10px}.catalogue-count button{font-size:11px}.concept-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.concept-tile{padding:15px 13px}.concept-tile h3{overflow-wrap:anywhere;margin:12px 0 20px;font-size:19px}.concept-tile .eyebrow{letter-spacing:.8px;font-size:7px}.concept-tile .tile-action{font-size:10px}.area-heading h2{font-size:25px}.area-heading>span{font-size:10px}.practice-grid{grid-template-columns:1fr}.practice-tile{padding:24px}.guided-content,.checkpoint{padding:17px}.guided-step h3,.checkpoint h3{font-size:22px}.step-track{gap:5px}.step-track button{padding:6px 10px}.step-actions .button{padding:9px 12px;font-size:11px}.step-actions .text-button{font-size:11px}.mapped-notice{padding:22px}.catalogue-filters label:nth-child(4){grid-column:1/-1}}.site-header{z-index:30;border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#f8f7f2f5;position:sticky;top:0}.site-header .header{border-bottom:0}.header nav a[aria-current=page]{color:var(--green);text-underline-offset:8px;font-weight:700;text-decoration:underline;text-decoration-thickness:2px}.skip-link{z-index:60}html{scroll-padding-top:112px}.catalogue-filters{grid-template-columns:1.4fr 1fr 1fr}@media (max-width:640px){.catalogue-filters{grid-template-columns:1fr 1fr}}
.practice-home{padding-top:28px;padding-bottom:70px}.practice-hero{grid-template-columns:1.65fr 1fr;align-items:center;gap:60px;margin:28px 0 48px;display:grid}.practice-hero h1{letter-spacing:-2px;margin:16px 0 22px;font-size:clamp(44px,5vw,64px)}.practice-hero .lead{max-width:610px;margin-bottom:24px;font-size:17px}.practice-stats{border-top:1px solid var(--line);gap:32px;padding-top:20px;display:flex}.practice-stats span{color:var(--muted);flex-direction:column;font-size:11px;display:flex}.practice-stats strong{font:31px var(--serif);color:var(--green);margin-bottom:3px}.start-practice-card{background:var(--mint);border:1px solid #d2ddcf;border-radius:12px;padding:30px;position:relative}.start-practice-card>.topic-glyph{color:#8eae99;width:74px;height:55px;position:absolute;top:22px;right:25px}.start-practice-card .eyebrow{padding-right:70px;font-size:9px}.start-practice-card h2{margin-top:26px;font-size:33px}.start-practice-card p:not(.eyebrow){color:var(--muted);font-size:13px}.start-practice-card .button{padding:12px 16px;font-size:12px}.start-practice-card .text-link{margin-top:17px;font-size:11px;display:block}.section-heading,.bank-heading{justify-content:space-between;align-items:end;gap:20px;margin-bottom:22px;display:flex}.section-heading h2,.bank-heading h2{margin:8px 0 0;font-size:33px}.section-heading .eyebrow,.bank-heading .eyebrow{margin-bottom:5px}.collection-grid{grid-template-columns:repeat(5,minmax(0,1fr));gap:13px;display:grid}.collection-tile{border:1px solid var(--line);background:var(--white);border-radius:10px;flex-direction:column;padding:20px 18px 16px;transition:border-color .15s,background .15s;display:flex}.collection-tile:hover{background:#edf3e9;border-color:#99b69e}.collection-top{justify-content:space-between;align-items:center;gap:8px;margin-bottom:20px;display:flex}.collection-top>span{white-space:nowrap;color:var(--muted);font-size:10px}.topic-glyph{width:54px;height:41px;color:var(--green);flex-shrink:0}.collection-tile h3{font-family:var(--serif);margin-bottom:12px;font-size:23px;line-height:1.13}.collection-tile p{color:var(--muted);margin-bottom:22px;font-size:12px;line-height:1.6}.collection-tile .tile-action{border-top:1px solid var(--line);padding-top:12px;font-size:10px}.practice-routes{border-block:1px solid var(--line);grid-template-columns:repeat(3,minmax(0,1fr));margin:30px 0 56px;display:grid}.practice-routes>a{align-items:center;gap:13px;padding:24px 20px;display:flex}.practice-routes>a+a{border-left:1px solid var(--line)}.route-number{color:#94a48f;font-family:var(--serif);font-size:24px}.practice-routes h3{margin-bottom:6px;font-size:14px;font-weight:600}.practice-routes p{color:var(--muted);margin:0;font-size:11px}.practice-routes>a>span:last-child{color:var(--green);margin-left:auto}.practice-routes a:hover h3{color:var(--green);text-decoration:underline}.bank-tabs{background:#eaf0e6;border-radius:6px;flex-shrink:0;gap:4px;padding:4px;display:flex}.bank-tabs button{background:0 0;border:0;border-radius:4px;padding:7px 12px;font-size:12px}.bank-tabs button[aria-pressed=true]{background:var(--white);color:var(--green);box-shadow:0 1px 4px #12322012}.practice-filters{grid-template-columns:1.35fr 1fr .85fr 1fr;padding:18px}.practice-tile{padding:23px}.practice-tile .tile-meta{margin-bottom:18px}.practice-tile h3{font:27px/1.2 var(--serif);letter-spacing:-.5px;margin:0 0 16px}.practice-tile .problem-topic{color:var(--green);margin-bottom:10px;font-size:10px;font-weight:600}.practice-tile>p:not(.problem-topic){font-size:13px}.level-tag{letter-spacing:.3px;border-radius:4px;padding:4px 9px;font-size:9px}.level-tag.beginner{color:#366245;background:#eaf1e5}.level-tag.intermediate{color:#385c6e;background:#eaf0f2}.level-tag.advanced{color:#8b5934;background:#f6ebdc}.load-more{text-align:center;margin-top:28px}.load-more p{margin-top:10px}.collection-hero{justify-content:space-between;align-items:center;gap:40px;padding:25px 0;display:flex}.collection-hero>div{max-width:800px}.collection-hero h1{margin:16px 0 20px;font-size:clamp(40px,5vw,62px)}.collection-hero .lead{max-width:700px;font-size:17px}.collection-hero>.topic-glyph{color:#92ae95;width:160px;height:120px;margin-right:30px}.collection-foundations{background:var(--mint);border:1px solid var(--line);border-radius:8px;margin-bottom:40px;padding:20px 24px}.collection-foundations .eyebrow{margin-bottom:11px;font-size:9px}.collection-foundations>div{flex-wrap:wrap;gap:10px 25px;display:flex}.collection-foundations a{color:var(--green);font-size:12px}.collection-foundations a:hover{text-decoration:underline}.collection-return{margin-top:40px}@media (max-width:1100px){.collection-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.practice-hero{gap:28px}.practice-routes>a{padding-inline:14px}.start-practice-card{padding:24px}.start-practice-card h2{font-size:28px}}@media (max-width:760px){.practice-hero{grid-template-columns:1fr}.start-practice-card{display:none}.practice-filters{grid-template-columns:1fr 1fr}.practice-filters label:first-child{grid-column:1/-1}.practice-routes{grid-template-columns:1fr}.practice-routes>a+a{border-left:0;border-top:1px solid var(--line)}.practice-routes>a{padding:17px 5px}.practice-routes p{font-size:12px}.collection-hero>.topic-glyph{width:80px;height:65px;margin:0}}@media (max-width:640px){.practice-home{padding-top:18px}.practice-hero{margin:22px 0 32px}.practice-hero h1{letter-spacing:-1.5px;font-size:43px;line-height:1.09}.practice-hero .lead{font-size:15px}.practice-stats{gap:27px}.practice-stats span{font-size:10px}.practice-stats strong{font-size:28px}.section-heading{flex-direction:column;align-items:start;gap:10px}.section-heading h2,.bank-heading h2{font-size:29px}.section-heading>a{font-size:11px}.collection-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.collection-tile{padding:15px 13px}.collection-top{gap:3px;margin-bottom:14px}.collection-top .topic-glyph{width:42px;height:32px}.collection-top>span{font-size:9px}.collection-tile h3{font-size:21px}.collection-tile p{font-size:11px}.collection-tile .tile-action{font-size:9px}.practice-routes{margin:26px 0 38px}.bank-heading{flex-direction:column;align-items:start;gap:16px}.practice-filters.fixed-topic{grid-template-columns:1fr 1fr}.practice-tile h3{font-size:25px}.practice-tile{padding:22px}.collection-hero{gap:16px;padding-top:15px}.collection-hero>.topic-glyph{display:none}.collection-hero h1{font-size:43px}.collection-hero .lead{font-size:15px}.collection-foundations{padding:20px}}.problem-collection-nav{margin-bottom:24px}.problem-collection-nav>a:first-child{color:var(--green);font-size:12px}.next-problem{border:1px solid var(--line);background:var(--white);border-radius:8px;gap:10px;margin-top:18px;padding:22px;display:grid}.next-problem strong{font-family:var(--serif);font-size:24px;font-weight:400;line-height:1.2}.next-problem>span:last-child{color:var(--green);font-size:12px}.problem-figure{border:1px solid var(--line);background:#f1f5ed;border-radius:8px;margin:24px 0;padding:18px}.problem-figure svg{width:100%;max-width:440px;height:auto;margin:auto;display:block}.problem-figure figcaption{color:var(--muted);margin-top:10px;font-size:11px;line-height:1.6}.practice-filters{grid-template-columns:1.3fr 1fr .75fr 1.1fr 1fr}.practice-filters.fixed-topic{grid-template-columns:1.3fr .75fr 1.1fr 1fr}.reasoning-tag{color:var(--green);margin-top:auto;padding-top:8px;font-size:10px;display:block}@media (max-width:1000px){.practice-filters,.practice-filters.fixed-topic{grid-template-columns:repeat(3,minmax(0,1fr))}.practice-filters label:first-child{grid-column:span 2}}@media (max-width:640px){.practice-filters,.practice-filters.fixed-topic{grid-template-columns:repeat(2,minmax(0,1fr))}.practice-filters label:first-child{grid-column:1/-1}.practice-filters label:nth-child(4){grid-column:auto}}.study-summary{border:1px solid var(--line);background:#f2f6ed;border-radius:12px;margin:1rem 0 1.5rem;padding:1rem 1.2rem}.study-summary p{margin:.2rem 0}.study-summary p:first-child{color:#284537}.study-summary span{margin:0 .5rem}.study-badge{color:#315743;margin-top:.6rem;font-size:.75rem;font-weight:650;display:block}.bank-tabs{flex-wrap:wrap}.assessed-concepts{background:#f0f4ed;border-radius:14px;padding:1.2rem}.assessed-concepts .topic-chips a{text-underline-offset:3px;text-decoration:underline}.study-record{color:#315743;font-weight:600}.problem-data-table{max-width:100%;margin:1.3rem 0;overflow-x:auto}.problem-data-table table{border-collapse:collapse;font-variant-numeric:tabular-nums;width:100%}.problem-data-table caption{text-align:left;color:#52645b;margin-bottom:.65rem;font-size:.85rem}.problem-data-table th,.problem-data-table td{text-align:left;border-bottom:1px solid #d7dfd3;padding:.65rem .8rem}.problem-data-table th{background:#f0f4ed;font-size:.82rem}.thermal-practice-path{background:#f5f8ef;border:1px solid #ceddcb;border-radius:1rem;margin:2rem 0;padding:clamp(1rem,3vw,2rem)}.thermal-practice-path>p{max-width:75ch}.thermal-path-stages{grid-template-columns:minmax(0,1fr);align-items:start;gap:1rem;margin-top:1.2rem;display:grid}.thermal-path-stages details{background:#fffefa;border:1px solid #d9e2d4;border-radius:.65rem;min-width:0;padding:1rem}.thermal-path-stages summary{cursor:pointer;font-weight:700}.thermal-path-stages small{color:#576658;margin-top:.25rem;font-size:.8rem;font-weight:400;display:block}.thermal-path-stages p{margin:1rem 0}.thermal-path-stages ol{margin:1rem 0 0;padding-left:1.35rem}.thermal-path-stages li{padding:.6rem 0}.thermal-path-stages a:focus-visible{outline-offset:3px;outline:3px solid #aa592a}@media (max-width:680px){.thermal-path-stages{grid-template-columns:1fr}}.thermal-path-reading{flex-wrap:wrap;gap:.6rem 1.2rem;display:flex}.members-lock{border:1px solid var(--line);border-left:4px solid var(--green);background:var(--white);border-radius:8px;margin:28px 0;padding:24px 26px}.members-lock h2{margin:4px 0 8px;font-size:22px;line-height:1.3}.members-lock p{margin:0 0 10px}.members-lock-actions{flex-wrap:wrap;align-items:center;gap:12px 20px;margin-top:14px;display:flex}.members-only{background:var(--mint);color:var(--muted);border:1px dashed #c9d3c4;border-radius:6px;flex-wrap:wrap;align-items:center;gap:8px 12px;margin:16px 0 0;padding:12px 14px;font-size:13px;display:flex}.locked-choices{margin:14px 0 0;padding:0;list-style:none}.locked-choices li{border:1px solid var(--line);background:var(--white);border-radius:6px;align-items:baseline;gap:12px;margin-bottom:8px;padding:10px 14px;display:flex;overflow-x:auto}.free-tag{letter-spacing:.3px;color:var(--green);background:#e3efe2;border-radius:4px;padding:4px 9px;font-size:9px;font-weight:700}.tile-tags{flex-wrap:wrap;gap:6px;display:inline-flex}
.home-hero-stats{color:var(--muted);flex-wrap:wrap;gap:28px;margin-top:32px;font-size:12px;display:flex}.home-hero-stats span{flex-direction:column;gap:5px;display:flex}.home-hero-stats strong{color:var(--ink);letter-spacing:-1px;font-size:28px;font-weight:500}.home-library,.home-paths,.home-comparisons,.home-study-guide{padding-top:76px;padding-bottom:76px}.home-section-heading{justify-content:space-between;align-items:end;gap:32px;margin-bottom:22px;display:flex}.home-section-heading h2,.home-study-guide h2,.home-membership h2{letter-spacing:-1.4px;margin:12px 0 0;font-size:clamp(30px,3.1vw,46px);line-height:1.15}.home-section-heading>p{max-width:320px;color:var(--muted);font-size:15px;line-height:1.7}.home-section-copy{max-width:660px;color:var(--muted);margin-bottom:30px;line-height:1.8}.home-topic-grid{border-top:1px solid var(--line);border-left:1px solid var(--line);grid-template-columns:repeat(3,minmax(0,1fr));display:grid}.home-topic-card{border-right:1px solid var(--line);border-bottom:1px solid var(--line);align-items:center;gap:15px;padding:23px 20px;text-decoration:none;transition:background .15s;display:flex}.home-topic-card:hover{background:#e9eee5}.home-topic-card .topic-glyph{width:49px;min-width:49px;height:42px;color:var(--green)}.home-topic-card h3{letter-spacing:-.2px;margin:0 0 7px;font-family:inherit;font-size:15px}.home-topic-card p{color:var(--muted);margin:0;font-size:11px;line-height:1.6}.home-topic-card>span:last-child{color:var(--green);margin-left:auto}.map-card{background:#ebeee4}.map-mark{text-align:center;width:49px;min-width:49px;color:var(--green);font-family:Georgia,serif;font-size:38px}.home-experiment-band{background:#e8eee4;border-top:1px solid #d6dfd3;border-bottom:1px solid #d6dfd3;padding:65px 0}.home-experiment{grid-template-columns:.85fr 1.15fr;align-items:center;gap:72px;display:grid}.experiment-intro h2{letter-spacing:-1.8px;margin:18px 0 24px;font-size:clamp(35px,3.8vw,54px);line-height:1.15}.experiment-intro h2 em{color:var(--green);font-weight:400}.experiment-intro>p:not(.eyebrow){color:#526454;font-size:15px;line-height:1.9}.experiment-intro .checkpoint{background:0 0;border:none;border-top:1px solid #cbd6c7;margin:24px 0 12px;padding:24px 0}.experiment-intro .checkpoint h3{font-size:18px}.experiment-intro .checkpoint-options{grid-template-columns:1fr 1fr;display:grid}.experiment-intro .checkpoint-options button{font-size:12px}.spring-lab{background:#fcfbf5;border:1px solid #ccd9ca;border-radius:10px;min-width:0;padding:26px;box-shadow:0 15px 35px #2a493b08}.lab-top{justify-content:space-between;align-items:center;gap:10px;display:flex}.spring-lab h3{letter-spacing:-.6px;margin:20px 0 4px;font-size:28px}.spring-lab svg{width:100%;height:auto;display:block}.phase-label{justify-content:space-between;gap:16px;margin-top:18px;font-size:12px;font-weight:600;display:flex}.phase-label span{font-variant-numeric:tabular-nums;color:var(--muted);font-weight:400}.phase-slider{width:100%;accent-color:var(--green);height:20px;margin:15px 0;display:block}.lab-buttons{flex-wrap:wrap;align-items:center;gap:15px;margin:12px 0 24px;display:flex}.lab-buttons button{font-size:11px}.lab-buttons .secondary-button{padding:9px 13px}.lab-buttons button:disabled{opacity:.5;cursor:default}.energy-readings{grid-template-columns:1fr 1fr;gap:18px;display:grid}.energy-readings>div{min-width:0}.energy-readings>div>span{color:var(--muted);margin-bottom:8px;font-size:12px;display:block}.energy-readings strong{font-variant-numeric:tabular-nums;font-size:19px;font-weight:500}.energy-track{background:#e4e9dd;border-radius:9px;height:7px;margin-top:12px;overflow:hidden}.energy-track>span{background:#16624d;height:100%;display:block}.energy-track.kinetic>span{background:#b57c43}.spring-lab .lab-explanation{color:#405143;min-height:45px;margin:22px 0 12px;font-size:13px;line-height:1.7}.spring-lab>.micro{font-size:10px;line-height:1.7}.concept-article>.spring-lab{margin:35px 0}.home-path-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:32px;display:grid}.home-path-card{border:1px solid var(--line);background:#f1f0e8;min-width:0;padding:30px}.home-path-card:nth-child(2){background:#e9eee3}.path-index{color:#95a28e;font-family:Georgia,serif;font-size:35px}.home-path-card h3{letter-spacing:-.6px;margin:18px 0 12px;font-size:26px;line-height:1.25}.home-path-card>p{color:var(--muted);min-height:48px;font-size:13px;line-height:1.8}.home-path-card ol{color:var(--green);margin:16px 0 20px;padding:10px 0 10px 20px}.home-path-card li{border-bottom:1px solid #d7ddcf;padding:10px 0;font-size:12px}.home-path-card li a{color:var(--ink);justify-content:space-between;gap:8px;text-decoration:none;display:flex}.home-path-card .text-link{font-size:12px}.home-comparisons{padding-top:0}.comparison-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;margin-top:32px;display:grid}.comparison-card{border-top:2px solid #cbd8c5;min-width:0;padding-top:24px}.comparison-card .topic-glyph{width:52px;height:40px;color:var(--green)}.comparison-card h3{letter-spacing:-.4px;margin:16px 0 12px;font-size:23px;line-height:1.3}.comparison-card p{color:var(--muted);font-size:13px;line-height:1.8}.comparison-card>div{flex-wrap:wrap;gap:8px;margin-top:22px;display:flex}.comparison-card a{color:var(--green);border:1px solid #d0dacb;border-radius:20px;padding:8px 10px;font-size:10px;text-decoration:none}.comparison-card a:hover{background:#e6ecdf}.home-study-guide{border-top:1px solid var(--line);grid-template-columns:1fr 1fr;gap:85px;padding-top:55px;display:grid}.home-study-guide>div>p:not(.eyebrow){color:var(--muted);margin:20px 0;font-size:14px;line-height:1.8}.home-study-guide .button{font-size:12px}.study-faq details{border-bottom:1px solid var(--line);padding:22px 0}.study-faq summary{cursor:pointer;font-size:14px;font-weight:600;line-height:1.7}.study-faq p{color:var(--muted);font-size:13px;line-height:1.9}.home-membership{background:#e8ede1;border:1px solid #d4dfca;justify-content:space-between;align-items:center;gap:32px;margin-bottom:70px;padding:36px 40px;display:flex}.home-membership h2{margin-top:12px;font-size:32px}.home-membership p:not(.eyebrow){max-width:590px;color:var(--muted);font-size:13px;line-height:1.8}.home-membership .button{flex-shrink:0;font-size:12px}@media (max-width:1000px){.home-topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.home-experiment{gap:32px}.home-path-card{padding:24px}.comparison-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.home-study-guide{gap:40px}.home-membership{margin-inline:24px}}@media (max-width:700px){.home-library,.home-paths,.home-comparisons,.home-study-guide{padding-top:45px;padding-bottom:45px}.home-section-heading{flex-direction:column;align-items:start;gap:16px}.home-topic-grid{grid-template-columns:1fr}.home-topic-card{padding:18px}.home-experiment{grid-template-columns:1fr;gap:26px}.home-experiment-band{padding:42px 0}.spring-lab{padding:20px}.spring-lab h3{font-size:25px}.lab-top .eyebrow{font-size:9px}.home-path-grid{grid-template-columns:1fr;gap:16px}.home-path-card>p{min-height:0}.comparison-grid{gap:25px 20px}.comparison-card h3{font-size:21px}.home-comparisons{padding-top:0}.home-study-guide{grid-template-columns:1fr;gap:20px}.home-membership{flex-direction:column;align-items:start;margin-bottom:45px;padding:28px 22px}.home-hero-stats{gap:25px}.home-hero-stats strong{font-size:25px}.home-section-copy{font-size:14px}.lab-buttons{gap:12px}.home-membership .button{white-space:normal}}@media (prefers-reduced-motion:reduce){.home-topic-card{transition:none}}.home-skill-links{flex-wrap:wrap;align-items:center;gap:10px;margin:24px 0;font-size:12px;display:flex}.home-skill-links>span{color:var(--muted);margin-right:4px}.home-skill-links a{border:1px solid var(--line);color:var(--green);border-radius:24px;padding:9px 14px}.home-skill-links a:hover{background:var(--pale)}
.chapter-page{padding-top:35px;padding-bottom:80px}.chapter-hero{border-bottom:1px solid var(--line);max-width:920px;padding:30px 0 42px}.chapter-hero h1{font-family:var(--serif);letter-spacing:-.045em;margin:20px 0;font-size:clamp(42px,5vw,76px);font-weight:400;line-height:1.05}.chapter-subtitle{color:var(--muted);max-width:740px;font-size:clamp(20px,2vw,27px);line-height:1.4}.chapter-facts{color:var(--green);flex-wrap:wrap;gap:12px 24px;margin-top:26px;font-size:12px;display:flex}.chapter-layout{grid-template-columns:240px minmax(0,720px);align-items:start;gap:64px;padding-top:40px;display:grid}.chapter-contents{max-height:calc(100vh - 120px);font-size:13px;position:sticky;top:100px;overflow:auto}.chapter-contents ol{margin:20px 0;padding:0;list-style:none}.chapter-contents li+li{margin-top:4px}.chapter-contents a{border-left:2px solid #0000;gap:12px;padding:9px 8px;line-height:1.55;display:flex}.chapter-contents a span{color:var(--green);padding-top:2px;font-size:10px}.chapter-contents a[aria-current]{border-color:var(--green);color:var(--green);background:#edf3e9}.chapter-contents .chapter-resume{border:1px solid var(--line);color:var(--green);margin-top:16px}.chapter-contents-mobile{display:none}.chapter-body{color:#33443b;min-width:0;font-size:17px;line-height:1.9}.chapter-body p{margin:0 0 22px}.chapter-body .eyebrow{margin-bottom:12px;font-size:10px}.chapter-body h2{font-family:var(--serif);letter-spacing:-.025em;color:var(--ink);margin:0 0 24px;font-size:clamp(27px,3vw,37px);font-weight:400;line-height:1.2}.chapter-body h3{font-family:var(--serif);color:var(--ink);margin:0 0 16px;font-size:24px;font-weight:400;line-height:1.35}.chapter-opening{font-size:19px;line-height:1.85}.chapter-objectives{background:#edf3e9;border-radius:6px;margin:34px 0 12px;padding:28px 32px}.chapter-objectives h2{letter-spacing:0;margin-bottom:12px;font-family:inherit;font-size:15px;font-weight:700}.chapter-objectives ul,.chapter-recap ul{margin:0;padding-left:22px}.chapter-objectives li+li,.chapter-recap li+li{margin-top:12px}.chapter-prerequisites{border-top:1px solid #d6e1d0;flex-direction:column;margin-top:24px;padding-top:16px;font-size:13px;display:flex}.chapter-prerequisites a{color:var(--green);text-underline-offset:3px;text-decoration:underline}.chapter-section{border-top:1px solid var(--line);margin-top:48px;padding-top:40px;scroll-margin-top:110px}.chapter-back{color:var(--muted);margin-top:12px;font-size:11px;display:inline-block}.chapter-equation{background:#f2f5ee;border-left:2px solid #80a389;margin:28px 0;padding:22px 26px}.chapter-equation p{margin:12px 0 0;font-size:14px;line-height:1.75}.chapter-body .katex-display{max-width:100%;padding:5px 0;overflow:auto hidden}.chapter-note{border-left:3px solid var(--green);background:#edf3e9;margin:28px 0;padding:22px 26px}.chapter-note.caution{background:#f5eee3;border-color:#aa592a}.chapter-note h3{margin-bottom:10px;font-family:inherit;font-size:15px;font-weight:700}.chapter-note p{margin:0;font-size:15px}.chapter-table{max-width:100%;margin:28px 0;font-size:14px;overflow-x:auto}.chapter-table table{border-collapse:collapse;text-align:left;width:100%;line-height:1.6}.chapter-table caption{text-align:left;padding-bottom:14px;font-weight:600}.chapter-table th,.chapter-table td{border-bottom:1px solid var(--line);vertical-align:top;min-width:105px;padding:14px}.chapter-table th{background:#edf3e9;font-size:12px}.logic-truth-table th,.logic-truth-table td{width:25%;min-width:0;padding:10px}.chapter-example{background:#fffefa;border:1px solid #d6dfd0;border-radius:8px;margin:32px 0;padding:28px 30px}.example-prompt{color:#263c30}.example-strategy{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:17px 0;font-size:15px}.example-strategy p{margin:4px 0 0}.chapter-example ol{margin:24px 0;padding-left:28px;list-style:decimal-leading-zero}.chapter-example li{margin-bottom:23px;padding-left:9px;font-size:16px}.chapter-example li::marker{color:var(--green);font-size:12px}.chapter-example li p{margin-bottom:8px}.example-answer{background:#edf3e9;padding:18px;font-size:15px}.example-answer strong{margin-bottom:6px;display:block}.example-check{font-size:14px}.example-check summary{cursor:pointer;color:var(--green);font-weight:600}.example-check p{margin:12px 0 0}.chapter-question{background:#f2f4ed;border:1px solid #dce4d5;border-radius:8px;margin:30px 0;padding:25px}.chapter-question h3{font-size:21px}.chapter-question fieldset{border:0;min-width:0;margin:18px 0;padding:0}.chapter-question fieldset label{border:1px solid var(--line);cursor:pointer;background:#fffefa;border-radius:4px;align-items:baseline;gap:10px;padding:12px 14px;font-size:14px;line-height:1.6;display:flex}.chapter-question fieldset label+label{margin-top:8px}.chapter-question label.selected{border-color:var(--green);background:#e5eedf}.chapter-question input[type=radio]{accent-color:var(--green);flex:none}.chapter-question-actions{flex-wrap:wrap;align-items:center;gap:20px;margin-top:18px;display:flex}.chapter-feedback{border-left:3px solid #aa592a;margin-top:22px;padding:4px 0 4px 18px;font-size:15px}.chapter-feedback.correct{border-color:var(--green)}.chapter-feedback p{margin:8px 0 0}.chapter-numeric{flex-direction:column;gap:6px;font-size:13px;display:flex}.chapter-numeric input{background:#fff;border:1px solid #bbcbb9;border-radius:4px;max-width:220px;padding:12px;font-size:18px}.chapter-hint{font-size:14px;margin-top:16px!important}.chapter-lab{background:#edf3e9;border:1px solid #d5e1cf;border-radius:8px;margin:32px 0;padding:28px}.chapter-lab>label{flex-direction:column;gap:8px;margin:18px 0;font-size:13px;font-weight:600;display:flex}.chapter-lab input[type=range]{accent-color:#16624d;width:100%}.chapter-lab select{max-width:100%;font:inherit;background:#fffefa;border:1px solid #c3d4bd;border-radius:4px;padding:10px}.chapter-lab svg{width:100%;max-width:480px;height:auto;margin:24px auto;display:block}.chapter-lab svg text{fill:#33443b;font-family:inherit;font-size:16px}.chapter-readouts{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin:20px 0;display:grid}.chapter-readouts p{background:#fffefa;border-radius:4px;margin:0;padding:14px}.chapter-readouts span{margin-bottom:8px;font-size:11px;line-height:1.4;display:block}.chapter-readouts strong{color:var(--green);font-size:18px;line-height:1.5;display:block}.chapter-lab>p:not(.eyebrow){font-size:15px}.chapter-lab>p:last-child{margin-bottom:0}.chapter-practice a{border-bottom:1px solid var(--line);background:#edf3e9;justify-content:space-between;padding:20px;display:flex}.chapter-practice small{color:var(--muted);font-size:12px;display:block}.chapter-sequence{border-top:1px solid var(--line);justify-content:space-between;gap:20px;margin-top:44px;padding-top:25px;display:flex}.chapter-sequence a{color:var(--green);flex:1}.chapter-sequence small{letter-spacing:.08em;color:var(--muted);font-size:9px;display:block}@media (max-width:900px){.chapter-layout{grid-template-columns:minmax(0,1fr);gap:28px;max-width:740px}.chapter-contents{border-bottom:1px solid var(--line);max-height:none;padding-bottom:20px;position:static}.chapter-contents-desktop{display:none}.chapter-contents-mobile{display:block}.chapter-contents-mobile summary{cursor:pointer;padding:10px 0}}@media (max-width:520px){.chapter-page{padding-top:22px}.chapter-hero{padding-top:16px;padding-bottom:28px}.chapter-body{font-size:16px;line-height:1.85}.chapter-opening{font-size:17px}.chapter-objectives,.chapter-example,.chapter-question,.chapter-lab{padding:20px 16px}.chapter-equation,.chapter-note{padding:16px}.chapter-facts{gap:8px 16px;font-size:11px}.chapter-example li{padding-left:3px;font-size:15px}.chapter-example ol{padding-left:22px}.chapter-body h3{font-size:21px}.chapter-sequence{flex-direction:column}}.foundation-path{border:1px solid var(--line);background:#edf3e9;border-radius:8px;margin:0 0 40px;padding:30px}.foundation-path h2,.collection-chapters h2{font-family:var(--serif);margin:10px 0 16px;font-size:34px;font-weight:400}.foundation-path>p:not(.eyebrow){max-width:720px;color:var(--muted);line-height:1.75}.foundation-path ol{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:28px 0 0;padding:0;list-style:none;display:grid}.foundation-path a{background:#fffefa;border:1px solid #d9e1d1;border-radius:4px;grid-template-columns:28px minmax(0,1fr);gap:5px 10px;height:100%;padding:18px;display:grid}.foundation-path a span{color:var(--green);padding-top:4px;font-size:11px}.foundation-path a strong{font-size:15px;font-weight:600}.foundation-path a small{color:var(--muted);grid-column:2;font-size:11px}.concept-chapter-description{color:var(--muted);margin-bottom:20px;font-size:13px;line-height:1.7}.collection-chapters{margin:24px 0 35px}.collection-chapters>div{grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:15px;display:grid}.collection-chapters a{border:1px solid var(--line);background:#edf3e9;border-radius:6px;padding:25px}.collection-chapters h3{font-family:var(--serif);margin:0 0 14px;font-size:23px;font-weight:400;line-height:1.25}.collection-chapters p{color:var(--muted);font-size:14px;line-height:1.7}.collection-chapters small{color:var(--green);font-size:11px}@media (max-width:600px){.foundation-path{padding:22px 16px}.foundation-path ol{grid-template-columns:1fr}}.chapter-question .sr-only{clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.chapter-diagram{border:1px solid var(--line);background:#fffefa;border-radius:6px;margin:30px 0;padding:20px}.chapter-diagram svg{width:100%;height:auto;display:block}.chapter-diagram text{fill:#33443b;font-family:inherit;font-size:14px}.chapter-diagram figcaption{color:var(--muted);border-top:1px solid var(--line);margin-top:12px;padding-top:18px;font-size:13px;line-height:1.8}@media (max-width:520px){.chapter-diagram{padding:12px}}.chapter-diagram .system-diagram{max-width:420px;margin:auto}.chapter-diagram .system-diagram text{font-size:16px}.chapter-plot{border:1px solid var(--line);background:#edf3e9;border-radius:6px;margin:30px 0;padding:24px}.chapter-plot svg{width:100%;max-width:540px;height:auto;margin:auto;display:block}.chapter-plot svg text{fill:#33443b;font-family:inherit;font-size:13px}.chapter-plot label{flex-direction:column;gap:12px;margin-top:16px;font-size:13px;display:flex}.chapter-plot input{width:100%;accent-color:var(--green)}.chapter-plot dl{flex-wrap:wrap;gap:16px;margin:20px 0;font-size:14px;display:flex}.chapter-plot dl>div{background:#fffefa;flex:1;min-width:100px;padding:14px}.chapter-plot dt span{border-radius:50%;width:9px;height:9px;margin-right:6px;display:inline-block}.chapter-plot dd{color:var(--green);margin:6px 0 0;font-weight:700}.chapter-plot figcaption{color:var(--muted);font-size:14px;line-height:1.8}@media (max-width:520px){.chapter-plot{padding:18px 12px}}.chapter-lab .spring-lab svg text{font-size:24px}.chapter-memory{background:#fffefa;border:1px solid #cbd9c7;border-radius:8px;margin:28px 0;padding:24px 28px;scroll-margin-top:110px}.chapter-memory h2{margin-bottom:14px;font-size:28px}.chapter-memory h3{font-size:22px}.chapter-memory .micro,.chapter-returns>.micro{color:var(--muted);font-size:13px;line-height:1.7}.chapter-memory .memory-prompt{color:var(--ink);margin-bottom:18px;font-weight:500}.chapter-memory-answer{border-top:1px solid var(--line);padding-top:14px}.chapter-memory-answer summary{color:var(--green);padding:6px 0;font-size:14px;font-weight:600}.chapter-memory-answer p{margin:14px 0;font-size:15px}.chapter-memory-answer a{color:var(--green);text-underline-offset:4px;font-size:13px;text-decoration:underline}.chapter-story{border-left:3px solid var(--ochre);background:#f6f0e5;border-radius:0 6px 6px 0;margin:26px 0 32px;padding:22px 26px}.chapter-story .eyebrow{color:#87502e}.chapter-story summary{font-family:var(--serif);color:var(--ink);font-size:23px;line-height:1.4}.chapter-story details[open] summary{margin-bottom:20px}.chapter-story p:not(.eyebrow){font-size:15px;line-height:1.85}.chapter-story .story-connection{border-top:1px solid #dfd3bf;margin-bottom:0;padding-top:16px}.story-connection strong{color:#87502e;margin-bottom:5px;font-size:13px;display:block}@media (max-width:520px){.chapter-memory,.chapter-story{padding:20px 16px}.chapter-memory h2{font-size:26px}.chapter-story summary{font-size:21px}}.dc-network svg{max-width:450px;margin:24px auto;display:block}.dc-network svg text,.electrical-diagram svg text{font-size:16px}.dc-network .chapter-readouts small{font-size:12px;line-height:1.5;display:block}.electrical-diagram svg{max-width:560px}.interference-lab svg{max-width:450px;margin:24px auto;display:block}.interference-lab svg text,.wave-optics-diagram svg text{font-size:15px}.interference-lab .phasor-diagram{max-width:390px}.interference-lab>label,.ice-water-lab>label{flex-direction:column;gap:8px;margin:18px 0;font-size:13px;font-weight:600;display:flex}.ice-water-lab svg{max-width:440px}.ice-water-lab svg text{font-size:14px}.expansion-diagram svg{max-width:480px;margin:auto}
.account-page{grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);align-items:start;gap:clamp(2rem,6vw,6rem);padding-top:5rem;padding-bottom:6rem;display:grid}.account-page h1,.dashboard-page h1,.legal-page h1{letter-spacing:-.04em;font-size:clamp(2.25rem,5vw,4rem);line-height:1.12}.account-page h1 em{color:var(--accent,#087b76);font-weight:400}.panel{background:var(--surface,#fffefb);border:1px solid var(--line,#d7dfd2);border-radius:18px;margin:1.5rem 0;padding:clamp(1.25rem,3vw,2rem)}.account-page .panel{margin:0}.panel h2{margin-top:0}.stack{flex-direction:column;gap:1rem;display:flex}.stack label{flex-direction:column;gap:.45rem;font-weight:600;display:flex}.stack input:not([type=checkbox]),.stack textarea,.stack select{color:#173632;width:100%;font:inherit;background:#fff;border:1px solid #9daaa6;border-radius:8px;min-width:0;padding:.8rem}.stack textarea{resize:vertical}.stack label.check,.check{flex-flow:wrap;align-items:flex-start;gap:.5rem;font-size:.92rem;font-weight:400;line-height:1.6;display:flex}.check input{accent-color:#087b76;flex:none;width:18px;height:18px;margin-top:.35rem}.stack button{white-space:normal;align-self:flex-start;max-width:100%}.button:disabled{opacity:.6;cursor:wait}.notice{color:#233e35;overflow-wrap:anywhere;background:#f0f4e9;border:1px solid #c9d8ca;border-radius:8px;padding:1rem}.account-nav{white-space:nowrap;font-weight:700!important}.legal-page{max-width:850px;padding-top:4rem;padding-bottom:5rem}.legal-page h2{margin-top:2rem}.legal-page p,.legal-page li{line-height:1.8}.dashboard-page{padding-top:4rem;padding-bottom:5rem}.dashboard-stats{grid-template-columns:repeat(4,minmax(0,1fr));gap:1rem;margin:2rem 0;display:grid}.dashboard-stats>div{background:#f0f4e9;border:1px solid #d7dfd2;border-radius:14px;padding:1.5rem}.dashboard-stats strong{font-size:2rem;display:block}.dashboard-stats span{margin-top:.4rem;font-size:.9rem;display:block}.account-actions{flex-wrap:wrap;align-items:center;gap:1.5rem;display:flex}.text-button{cursor:pointer;color:inherit;font:inherit;background:0 0;border:0;padding:0;text-decoration:underline}.resource-list{padding:0;list-style:none}.resource-list li{border-bottom:1px solid #e0e6dc;padding:1rem 0}.resource-list small{color:#52675f;margin-top:.3rem;display:block}.resource-list form{margin-top:.75rem}.table-scroll{overflow-x:auto}.table-scroll table{border-collapse:collapse;width:100%}.table-scroll th,.table-scroll td{text-align:left;overflow-wrap:anywhere;border-bottom:1px solid #d7dfd2;padding:.8rem;font-size:.9rem}.inventory-json,.admin-edition pre{white-space:pre-wrap;overflow-wrap:anywhere;max-height:30rem;font-size:.9rem;overflow:auto}.admin-edition{border-bottom:1px solid #d7dfd2;padding:1rem 0}.admin-edition form{margin:1rem 0}.preserve-lines{white-space:pre-wrap;overflow-wrap:anywhere}.sync-status{color:#51655f;grid-column:1/-1;margin:0;font-size:.85rem}.footer nav{flex-wrap:wrap;gap:.8rem 1.5rem;display:flex}.footer small{margin-top:1rem;display:block}.honeypot{width:1px;height:1px;position:absolute;left:-9999px;overflow:hidden}input:focus-visible,textarea:focus-visible,select:focus-visible,button:focus-visible{outline-offset:3px;outline:3px solid #b87730}@media (max-width:760px){.account-page{grid-template-columns:1fr;gap:2rem;padding-top:2.5rem}.dashboard-stats{grid-template-columns:1fr 1fr}.dashboard-stats>div{padding:1rem}.dashboard-stats strong{font-size:1.5rem}.legal-page,.dashboard-page{padding-top:2.5rem}.header nav{gap:clamp(.55rem,3vw,1rem);font-size:.86rem}.footer{gap:1rem}.account-page h1{font-size:2.75rem}}.stack label.check,.check{display:block}.check input{vertical-align:middle;margin:0 .5rem .15rem 0;display:inline-block}.consent-prompt{z-index:50;border:1px solid var(--line);background:var(--white);border-radius:8px;max-width:440px;max-height:80dvh;padding:18px 20px;font-size:13px;position:fixed;bottom:16px;left:16px;right:16px;overflow-y:auto;box-shadow:0 10px 30px #202e2924}.consent-prompt h2{margin:0 0 6px;font-size:16px}.consent-prompt p{margin:0 0 10px}.consent-prompt a{color:var(--green);text-decoration:underline}.consent-actions{flex-wrap:wrap;gap:8px;margin-top:10px;display:flex}.consent-actions .button:disabled{opacity:.55;cursor:default}