@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2) format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff) format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff) format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff) format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2) format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff) format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2) format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff) format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2) format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff) format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2) format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff) format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2) format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff) format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2) format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff) format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff) format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff) format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff) format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2) format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff) format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2) format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff) format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2) format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff) format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,d09GMgABAAAAAA4oAA4AAAAAHbQAAA3TAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAABmAAgRQIDgmcDBEICo1oijYBNgIkA14LMgAEIAWJAAeBHAyBHBvbGiMRdnO0IkRRkiYDgr9KsJ1NUAf2kILNxgUmgqIgq1P89vcbIcmsQbRps3vCcXdYOKSWEPEKgZgQkprQQsxIXUgq0DqpGKmIvrgkeVGtEQD9DzAO29fM9jYhxZEsL2FeURH2JN4MIcTdO049NCVdxQ/w9NrSYFEBKTDKpLKfNkCGDc1RwjZLQcm3vqJ2UW9Xfa3tgAHz6ivp6vgC2yD4/6352ndnN0X0TL7seypkjZlMsjmZnf0Mm5Q+JykRWQBKCVCVPbARPXWyQtb5VgLB6Biq7/Uixcj2WGqdI8tGSgkuRG+t910GKP2D7AQH0DB9FMDW/obJZ8giFI3Wg8Cvevz0M+5m0rTh7XDBlvo9Y4vm13EXmfttwI4mBo1EG15fxJhUiCLbiiyCf/ZA6MFAhg3pGIZGdGIVjtPn6UcMk9A/UUr9PhoNsCENw1APAq0gpH73e+M+0ueyHbabc3vkbcdtzcf/fiy+NxQEjf9ud/ELBHAXJ0nk4z+MXH2Ev/kWyV4k7SkvpPc9Qr38F6RPWnM9cN6DJ0AdD1BhtgABtmoRoFCvPsBAumNm6soZG2Gk5GyVTo2sJncSyp0jQTYoR6WDvTwaaEcHsxHfvuWhHA3a6bN7twRKtcGok6NsCi7jYRrM2jExsUFMxMQYuJbMhuWNOumEJy9hi29Dmg5zMp/A5+hhPG19j1vBrq8JTLr8ki5VLPmG/PynJHVul440bxg5xuymHUFPBshC+nA9I1FmwbRBTNHAcik3Oae0cxKoI3MOriM42UrPe51nsaGxJ+WfXubAsP84aabUlQSJ1IiE0iPETLUU4CATgfXSCSpuRFRmCGbO+wSpAnzaeaCYW1VNEysRtuXCEL1kUFUbbtMv3Tilt/1c11jt3Q5bbMa84cpWipp8Elw3MZhOHsOlwwVUQM3lAR35JiFQbaYCRnMF2lxAWoOg2gyoIV4PouX8HytNIfLhqpJtXB4vjiViUI8IJ7bkC4ikkQvKksnOTKICwnqWSZ9YS5f0WCxmpgjbIq7EJcM4aI2nmhLNY2JIUgOjXZFWBHb+x5oh6cwb0Tv1ackHdKi0I9OO2wE9aogIOn540CCCziyhN+IaejtgAONKznHlHyutPrHGwCx9S6B8kfS4Mfi4Eyv7OU730bT1SCBjt834cXsf43zVjPUqqJjgrjeGnBxSG4aYAKFuVbeCfkDIjAqMb6yLNIbCuvXhMH2/+k2vkNpkORhR59N1CkzoOENvneIosjYmuTxlhUzaGEJQ/iWqx4dmwpmKjrwTiTGTCVozNAYqk/zXOndWxuWSmJkQpJw3pK5KX6QrLt5LATMqpmPAQhkhK6PUjzHUn7E0gHE0kPE0iKkolgkUx9SZmVAdDgpffdyJKg3k7VmzYGCwVXGz/tXmkOIp+vcWs+EMuhhvN0h9uhfzWJziBQmCREGSIFmQIkgVpAnSBRmC//6hkLZwaVhwxlrJSOdqlFtOYxlau9F2QN5Y98xmIAsiM1HVp2VFX+DHHGg6Ecjh3vmqtidX3qHI2qycTk/iwxSt5UzTmEP92ZBnEWTk4Mx8Mpl78ZDokxg/KWb+Q0QkvdKVmq3TMW+RXEgrsziSAfNXFMhDc60N5N9jQzjfO0kBKpUZl0ZmwJ41j/B9Hz6wmRaJB84niNmQrzp9eSlQCDDzazGDdVi3P36VZQ+Jy4f9UBNp+3zTjqI4abaFAm+GShVaXlsGdF3FYzZcDI6cori4kMxUECl9IjJZpzkvitAoxKue+90pDMvcKRxLl53TmOKCmV/xRolNKSqqUxc6LStOETmFOiLZZptlZepcKiAzteG8PEdpnQpbOMNcMsR4RR2Bs0cKFEvSmIjAFcnarqwUL4lDhHmnVkwu1IwshbiCcgvOheZuYyOteufZZwlcTlLgnZ3o/WcYdzZHW/WGaqaVfmTZ1aWCceJjkbZqsfbkOtcFlUZM/jy+hXHDbaUobWqqXaeWobbLO99yG5N3U4wxco0rQGGcOLASFMXeJoham8M+/x6O2WywK2l4HGbq1CoUyC/IZikQhdq3SiuNrvAEj0AVu9x2x3lp/xWzahaxidezFVtdcb5uEnzyl0ZmYiuKI0exvCd4Xc9CV1KB0db00z92wDPde0kukbvZIWN6jUWFTmPIC/Y4UPCm8UfDTFZpZNon1qLFTkBhxzB+FjQRA2Q/YRJT8pQigslMaUpFyAG8TMlXigiqmAZX4xgijKjRlGpLE0GdplRfCaJo0JQaSxNBk6ZmMzcya0FmrcisDdn0Q3HI2sWSppYigmlM1XT/kLQZSNpMJG0WkjYbSZuDpM1F0uYhFc1HxU4m1QJjDK6iL0S5uSj5rgXc3RejEigtcRBtqYPQsiTskmO5vosV+q4VGIKbOkDg0jtRrq+Em1YloaTFar3EGr1EUC8R0kus1Uus00usL97ABr2BjXoDm/QGNhuWtMVBKOwg/i78lT7hBsAvDmwHc/ao3vmUbBmhjeYySZNWvGkfZAgISDSaDo1SVpzGDsAEkF8B+gEapViUoZgUWXcRIGFZNm6gWbAKk0bp0k1MHG9fLYtV4iS2SmLEQFARzRcnf9PUS0LVn05/J9MiRRBU3v2IrvW974v4N00L7ZMk0wXP1409CHo/an8zTRHD3eSJ6m8D4YMkZNl3M79sqeuAsr/m3f+8/yl7A50aiAEJgeBeMWzu7ui9UfUBCe2TIqZIoOd/3/udRBOQidQZUERzb2/VwZN1H/Sju82ew2H2Wfr6qvfVf3hqwDvAIpkQVFy4B9Pe9e4/XvPeceu7h3dvO56iJPf0+A6cqA2ip18ER+iFgggiuOkvj24bby0N9j2UHIkgqIt+sVgfodC4YghLSMjSZbH0VR/6dMDrYJeKHilKTemt6v6kvzvn3/RrdWtr0GoN/xL+Sex/cPYLUpepx9cz/D46UPU5KXgAQa+NDps1v6J3xP1i2HtaDB0M9aX2deA7SYff//+gUCovMmIK/qfsFcOk+4Y5ZN97XlG6zebqtMbKgeRFi51vnxTQYBUik2rS/Cn6PC8ADR8FGxsRPB82dzfND90gIcshOcYUkfjherBz53odpm6TP8txlwOZ71xmfHHOvq053qFF/MRlS3jP0ELudrf2OeN8DHvp6ZceLe8qKYvWz/7yp0u4dKPfli3CYq0O13Ih71mylJ80tOi10On8wi+F4+LWgDPeJ30msSQt9/vkmHq9/Lvo2b461mP801v3W4xTcs6CbvF9UDdrSt+A8OUbpSh55qAUFXWznBBfdeJ8a4d7ugT5tvxUza3h9m4H7ptTqiG4z0g5dc0X29OcGlhpGFMpQo9ytTS+NViZpNdvU4kWx+LKxNY10kQ1yqGXrhe4/1nvP7E+nd5A92TtaRplbHSqoIdOqtRWti+fkB5/n1+/VvCmz12pG1kpQWsfi1ftlBobm0bpngs16CHkbIwdLnParxtTV3QYRlfJ0KFskH7pdN/YDn+yRuSd7sNH3aO0DYPggk6uWuXrfOc+fa3VTxFVvKaNxHsiHmsXyCLIE5yuOeN3/Jdf8HBL/5M6shjyhxHx9BjB1O0+4NLOnjLLSxwO7ukN4jMbOIcD879KLSi6Pk61Oqm2377n8079PXEEQ7cy7OKEC9nbpet118fxweTafpt69x/Bt8UqGzNQt7aelpc44dn5cqhwf71+qKp/Zf/+a0zcizOUWpl/iBcSXip0pplkatCchoH5c5aUM8I7/dWxAej8WicPL1URFZ9BDJelUwEwTkGqUhgSlydVes95YdXvhh9Gfz/aeFWvgVb4tuLbcv4+wLdutVZv/cUonwBD/6eDlE0aSiKK/uoH3+J1wDE/jMVqY2ysGufN84oIXB0sPzy8ollX/LegY74DgJXJR57sn+VGza0x3DnuIgABFM15LmajjjsNlYj+JEZGbuRYcAMOWxFkPN2w6Wd46xo4gVWQR/X4lyI/R6K/YK0110GzudPRW7Y+UOBGTfNNzHeYT0fiH0taunBpq9HEW8OKSaBGj21L0MqenEmNRWBAWDWAk4CpNoEZJ2tTaPFgbQYj8HxtFilErs3BTRwT8uO1NXQaWfIotchmPkAF5mMBAliEmZiOGVgCG9LgRzpscMAOOwowlT3JhusdazXGSC/hxR3UlmWVwWHpOIKheqONvjyhSiTHIkVUco5bnji8m//zL7PKaT1Vl5I6UE609f+gkr6MZKVyKc7zJRmCahLsdlyA5fdQkRSan9LgnnLEyGSkaKJCJog0wAgvepWBt80+1yKln1bMVtCljfNWDueKLsWwaEbBSfSPTEmVRsUcYYMnEjcjeyCZzBXK9E9BYBXLKjOSpUDR+nEV3TFSUdQaz+ot98QxgXwx0GQ+EEUAKB2qZPkQQ0GqFD8UPFMqyaCHM24BZmSGic9EYMagKizOw9Hz50DMrDLrqqLkTAhplMictiCAx5S3BIUQdeJeLnBy2CNtMfz6cV4u8XKoFZQesbf9YZiIERiHjaNodDW6LgcirX/mPnJIkBGDUpTBhSa0EIr38D5hCIszhCM8URGBqImoWjpvpt1ebu/v3Gl3qJfMnNM+9V+kiRFyROTPHQWOcs1dNW94/ukKMPZBvDi55i5CttdeJz84DLngLqjcdwEZ87bFFR8CIG35OAkDVN6VRDZ7aq67NteYqZ2lpT8oYB2CytoBd6VuAx4WgiAsnuj3WohG+LugzXiQRDeM3XYXlULv4dp5VFYC) format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff) format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2) format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff) format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2) format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff) format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;position:relative;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.47"}.katex .katex-mathml{border:0;-webkit-clip-path:inset(50%);clip-path:inset(50%);height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .smash{display:inline;line-height:0}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}@font-face{font-family:DM Sans;font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/font-0.ttf) format("truetype")}@font-face{font-family:DM Sans;font-style:normal;font-weight:500;font-display:swap;src:url(/fonts/font-1.ttf) format("truetype")}@font-face{font-family:DM Sans;font-style:normal;font-weight:600;font-display:swap;src:url(/fonts/font-2.ttf) format("truetype")}@font-face{font-family:DM Sans;font-style:normal;font-weight:700;font-display:swap;src:url(/fonts/font-3.ttf) format("truetype")}@font-face{font-family:Manrope;font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/font-4.ttf) format("truetype")}@font-face{font-family:Manrope;font-style:normal;font-weight:500;font-display:swap;src:url(/fonts/font-5.ttf) format("truetype")}@font-face{font-family:Manrope;font-style:normal;font-weight:600;font-display:swap;src:url(/fonts/font-6.ttf) format("truetype")}@font-face{font-family:Manrope;font-style:normal;font-weight:700;font-display:swap;src:url(/fonts/font-7.ttf) format("truetype")}@font-face{font-family:Manrope;font-style:normal;font-weight:800;font-display:swap;src:url(/fonts/font-8.ttf) format("truetype")}*{box-sizing:border-box}:root{--bg:#f8f9f6;--white:#fff;--ink:#252f2a;--muted:#858b84;--green:#214d3a;--dark:#173d2e;--line:#e8ebe4;--mint:#eaf2e6;--peach:#fbede3;--lilac:#efedf8;--yellow:#f8f3dd;--font:"DM Sans",sans-serif;--heading:"Manrope",sans-serif}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:14px;-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit}button{cursor:pointer;color:inherit}button:disabled{opacity:.45;cursor:not-allowed}button{border:0;background:none}a{color:inherit}input,select,textarea{color:var(--ink);outline:none}button,input,select,textarea,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible{outline:3px solid #accd9a;outline-offset:4px}input:focus,select:focus,textarea:focus{border-color:#95b58a!important;box-shadow:0 0 0 3px #e9f0e5}h1,h2,h3,h4,p{margin:0}h1,h2,h3,h4{font-family:var(--heading)}h1{font-size:32px;line-height:1.3;letter-spacing:-1.25px;font-weight:750}h2{font-size:19px;letter-spacing:-.6px;font-weight:750}h3{font-size:15px;font-weight:750;letter-spacing:-.3px}svg{flex-shrink:0;vertical-align:middle}button{transition:background .18s,box-shadow .18s,transform .18s,color .18s}button:not(:disabled):active{transform:translateY(1px)}.green{color:#47754f}.red{color:#b55d51}.muted{color:var(--muted)}.small{font-size:12px;line-height:1.7}.mint{background:var(--mint);color:#587b55}.peach{background:var(--peach);color:#bf8762}.lilac{background:var(--lilac);color:#9380be}.yellow{background:var(--yellow);color:#bfa553}.app-shell{min-height:100vh}.sidebar{width:228px;background:#fff;border-right:1px solid var(--line);padding:33px 19px 21px;position:fixed;inset:0 auto 0 0;display:flex;flex-direction:column;z-index:40;overflow-y:auto}.brand{display:flex;align-items:center;gap:9px;font-family:var(--heading);font-size:25px;letter-spacing:-1.2px;font-weight:800;margin:0 9px 32px;padding:0;white-space:nowrap}.brand-mark{width:33px;height:35px;border-radius:10px;background:var(--dark);color:#daefc7;display:inline-flex;align-items:center;justify-content:center;font-size:28px;font-family:Arial;line-height:1;flex-shrink:0}.brand-light{font-weight:450}.brand-dot{color:#79966c}.exam-switch{display:flex;align-items:center;gap:10px;background:#f8f9f6;border:1px solid #e9ece5;border-radius:10px;min-height:65px;padding:12px 10px;text-align:left;margin-bottom:32px}.exam-switch>span:nth-child(2){flex:1}.exam-switch small{display:block;font-size:8px;letter-spacing:1.2px;color:#989d94;margin-bottom:5px;font-weight:600}.exam-switch strong{font-size:12px;font-weight:650}.exam-symbol{color:#687963}.nav-label{font-size:9px;letter-spacing:1.4px;color:#a2a79d;font-weight:600;margin:0 12px 11px}nav{display:flex;flex-direction:column;gap:3px;margin-bottom:28px}.nav-item{display:flex;align-items:center;gap:12px;min-height:42px;width:100%;padding:10px 12px;font-size:12px;border-radius:7px;text-align:left;color:#747d73}.nav-item svg{stroke-width:1.6}.nav-item>span:nth-child(2){flex:1}.nav-item:hover{background:#f6f8f2;color:var(--green)}.nav-item.active{background:#edf3e7;color:#355c3d;font-weight:650}.nav-dot{width:5px;height:5px;background:#638758;border-radius:50%;margin-right:4px}.tiny-badge{font-size:8px;background:#f1f2ee;color:#8e9786;padding:3px 5px;border-radius:4px;letter-spacing:.3px}.subject-dot{width:7px;height:7px;border-radius:50%;display:inline-block;flex-shrink:0}.subject-dot.mint{background:#9fbd8b}.subject-dot.peach{background:#dbb795}.subject-dot.lilac{background:#b7a1d5}.subject-nav{padding-left:18px;gap:17px;min-height:37px}.subject-nav>svg{color:#b1b6ac}.subject-active{background:#f8faf6;color:#3f6543}.nav-count{font-size:10px;background:#f0f3ec;padding:1px 5px;border-radius:3px}.sidebar-bottom{margin-top:auto;padding-top:24px}.daily-goal{border:1px solid #e9eddf;background:#fafbf5;border-radius:10px;padding:15px 13px}.daily-goal>div:first-child{display:flex;align-items:center;gap:7px}.daily-goal strong{font-size:11px;font-weight:600}.goal-icon{color:#9caa6e}.daily-goal p{font-size:10px;color:#949b87;margin:12px 0 9px}.progress-track{width:100%;height:4px;border-radius:6px;background:#e8ebdf;overflow:hidden}.progress-track i{display:block;height:100%;background:#779365;border-radius:6px;transition:width .4s}.daily-goal button{margin-top:12px;font-size:10px;padding:0;display:flex;align-items:center;justify-content:space-between;width:100%;color:#697960}.settings-nav{margin-top:16px}.local-status{display:flex;align-items:center;gap:6px;justify-content:center;font-size:9px;color:#9ba493;margin-top:16px}.local-status span{width:4px;height:4px;border-radius:50%;background:#98b587}.main-shell{margin-left:228px}.topbar{height:77px;display:flex;justify-content:space-between;align-items:center;padding:0 38px;border-bottom:1px solid var(--line);background:#ffffffa6}.breadcrumb{display:flex;align-items:center;gap:13px;font-size:11px;color:#949a90}.breadcrumb strong{font-weight:500;color:#687061}.breadcrumb>svg{color:#b2b8aa}.header-actions{display:flex;align-items:center;gap:20px}.header-season{font-size:9px;letter-spacing:1.1px;display:flex;gap:6px;align-items:center;color:#727e64}.header-season>span{height:5px;width:5px;background:#8aab72;border-radius:50%}.header-divider{height:17px;width:1px;background:#e5e8df}.header-streak{display:flex;gap:6px;align-items:center;font-size:10px;color:#9a9e8e;padding:0}.header-streak>svg{color:#bfa67f}.header-streak strong{font-weight:600;color:#777d6a}.avatar{width:31px;height:31px;border-radius:50%;background:#efece2;color:#7c7867;border:3px solid #fff;box-shadow:0 0 0 1px #e6e5db;font-size:11px}.main-content{padding:33px 38px 0;max-width:1560px;margin:auto}.page-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:28px}.eyebrow{font-size:8px;letter-spacing:1.8px;color:#949e89;font-weight:600;margin-bottom:10px}.page-heading h1{margin:0 0 9px}.page-heading p{font-size:12px;color:#91988b;line-height:1.7}.date-chip{display:flex;align-items:center;gap:7px;border:1px solid #e7ebdf;border-radius:7px;padding:9px 11px;color:#89907e;font-size:10px;background:#fcfdfb;white-space:nowrap}.date-chip svg{color:#adb49f}.hero{border-radius:14px;border:1px solid #dfe7d5;background:#edf2e5;min-height:272px;position:relative;overflow:hidden;display:flex;align-items:center;margin-bottom:24px}.hero-copy{z-index:1;padding:29px 32px;flex:1}.hero-kicker{font-size:8px;letter-spacing:1.2px;font-weight:600;color:#7a876a;display:flex;align-items:center;gap:6px;margin-bottom:18px}.status-dot{display:inline-block;background:#74905c;height:4px;width:4px;border-radius:50%;flex-shrink:0}.hero h2{font-size:34px;line-height:1.25;font-weight:650;letter-spacing:-1.4px;color:#2e4230}.hero h2>span{font-family:Georgia,serif;font-style:italic;font-weight:400;color:#6b8157;letter-spacing:-1px}.hero p{font-size:11px;color:#869078;line-height:1.9;margin:13px 0 21px}.hero-actions{display:flex;gap:15px;align-items:center}.hero-actions>span{font-size:9px;color:#9aa18d}.hero-actions>span>strong{color:#6e7c5c;font-weight:500}.btn{display:inline-flex;justify-content:center;align-items:center;gap:11px;min-height:39px;padding:10px 16px;border-radius:7px;font-size:11px;font-weight:500;white-space:nowrap}.btn.primary{background:var(--green);color:#f6f9f0;border:1px solid var(--green);box-shadow:0 2px 3px #15322108}.btn.primary:hover:not(:disabled){background:#326146;border-color:#326146;box-shadow:0 3px 7px #173d2e20}.btn.outline{background:#fff;border:1px solid #dfe5d7;color:#6c7a61}.btn.outline:hover:not(:disabled){background:#f6f8f2}.orbit-art{position:relative;align-self:stretch;width:43%;min-width:310px;margin-right:3%;display:flex;align-items:center}.orbit-art svg{width:100%;transform:scale(1.08)}.formula{font-family:Georgia,serif;color:#788469;background:#fbfcf4e8;border:1px solid #e0e6d6;border-radius:7px;box-shadow:0 4px 12px #3c5b2310;font-size:15px;font-style:italic;position:absolute;padding:9px 13px}.formula-one{left:13%;top:20%;transform:rotate(-8deg)}.formula-two{right:6%;bottom:24%;transform:rotate(9deg);font-size:16px}.formula-three{left:13%;bottom:15%;transform:rotate(-4deg);display:flex;gap:12px;align-items:center;font-size:13px}.orbit-caption{position:absolute;bottom:8%;left:30%;font-size:5.5px;letter-spacing:1.5px;color:#92a181;white-space:nowrap}.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;margin-bottom:34px}.stat-card{border:1px solid var(--line);background:#fff;border-radius:10px;padding:16px 18px}.stat-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:9px;gap:8px}.stat-top>span:first-child{font-size:10px;color:#93998d}.stat-icon{display:inline-flex;width:29px;height:29px;align-items:center;justify-content:center;border-radius:7px}.stat-icon svg{stroke-width:1.5}.stat-card>strong{display:block;font-family:var(--heading);font-size:25px;line-height:1.35;font-weight:600;letter-spacing:-.8px;margin-bottom:7px;color:#3d4835}.stat-card>small{display:block;font-size:9px;color:#a2a894}.section-title{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:19px}.section-title h2{font-size:17px;letter-spacing:-.45px;font-weight:650}.section-title p{font-size:10px;color:#9a9f91;margin-top:7px}.text-button{display:inline-flex;align-items:center;gap:7px;padding:0;font-size:10px;color:#7d8b6d;white-space:nowrap}.text-button:hover{color:#2c6139}.subjects-section{margin-bottom:33px}.subject-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.subject-card{border-radius:11px;padding:20px 21px 18px;text-align:left;position:relative;border:1px solid #00000005;overflow:hidden}.subject-card:hover{transform:translateY(-3px);box-shadow:0 6px 15px #374e2910}.subject-card.mint{background:#eff4e9}.subject-card.peach{background:#fbf0e7}.subject-card.lilac{background:#f1edf8}.subject-card-top{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:13px}.subject-art{height:40px;width:44px;display:flex;align-items:center;justify-content:center}.round-arrow{height:25px;width:25px;background:#ffffff91;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#869577}.subject-card.peach .round-arrow{color:#b19b83}.subject-card.lilac .round-arrow{color:#a297b8}.subject-card h3{font-size:18px;color:#3f4b36;letter-spacing:-.5px;margin-bottom:6px}.subject-card.peach h3{color:#6a5541}.subject-card.lilac h3{color:#5c5073}.subject-card>p{font-size:10px;opacity:.6}.subject-meta{font-size:9px;display:flex;align-items:center;gap:8px;margin-top:19px;opacity:.72}.subject-meta i{height:2px;width:2px;border-radius:50%;background:currentColor}.subject-progress{display:flex;gap:10px;align-items:center;margin-top:15px}.subject-progress>.progress-track{height:3px;background:#dce4d3}.subject-card.peach .progress-track{background:#eddcd0}.subject-card.lilac .progress-track{background:#e0d8ed}.subject-progress>span{font-size:8px;opacity:.7;min-width:16px}.bank-grid{display:grid;grid-template-columns:minmax(0,1fr) 255px;gap:22px}.bank-section{min-width:0}.bank-section>.section-title{margin-bottom:17px}.chapter-panel{border:1px solid var(--line);background:#fff;border-radius:10px;overflow:hidden}.subject-tabs{display:flex;gap:21px;padding:0 19px;min-height:48px;border-bottom:1px solid #edf0e8;align-items:stretch}.subject-tabs button{font-size:10px;color:#939b88;padding:1px 0 0;display:flex;align-items:center;gap:6px;position:relative;white-space:nowrap}.subject-tabs button.selected{color:#456a3e;font-weight:600}.subject-tabs button.selected:after{content:"";height:2px;border-radius:3px;background:#8da67c;position:absolute;bottom:0;inset-inline:0}.subject-tabs .subject-dot{width:5px;height:5px}.bank-tools{display:flex;gap:9px;padding:14px 16px 9px}.search-field{height:34px;display:flex;align-items:center;gap:8px;padding:0 11px;border:1px solid #e9ece4;border-radius:6px;flex:1;min-width:100px;color:#a4ab98;background:#fff}.search-field input{width:100%;border:0;background:none;font-size:10px;min-width:0;height:100%;box-shadow:none}.search-field input::placeholder{color:#a3aa98}.search-field input:focus{box-shadow:none}.search-field:focus-within{border-color:#91ae7a}.search-field>svg{stroke-width:1.5}.search-field kbd{font-size:8px;color:#b3b9aa;border:1px solid #eceee8;border-radius:3px;padding:1px 4px;white-space:nowrap}.bank-tools select{font-size:9px;height:34px;background:#fff;border:1px solid #e9ece4;border-radius:6px;padding:0 8px;color:#949e87;max-width:120px}.chapter-list{padding:0 16px}.chapter-row{width:100%;display:flex;align-items:center;text-align:left;padding:16px 0;gap:12px;border-bottom:1px solid #eef0ea;min-height:78px}.chapter-row:last-child{border-bottom:0}.chapter-row:hover{background:#fbfcf8}.chapter-icon{height:38px;width:38px;display:inline-flex;align-items:center;justify-content:center;border-radius:9px;flex-shrink:0}.chapter-row .chapter-icon{height:34px;width:34px;border-radius:7px}.chapter-info{flex:1;min-width:0}.chapter-info h3{font-family:var(--font);font-size:11px;font-weight:500;color:#5a6550;margin-bottom:7px;letter-spacing:0}.chapter-info p{display:flex;align-items:center;gap:6px;font-size:8px;color:#a5ad98}.chapter-count{display:flex;flex-direction:column;align-items:flex-end;gap:5px;margin-left:10px;min-width:43px}.chapter-count strong{font-size:10px;font-weight:500;color:#737e64}.chapter-count>span{font-size:8px;color:#b2b9a7}.progress-pill{font-size:7px;background:#f7f8f4;color:#a3ac95;padding:5px 7px;border:1px solid #edf0e7;border-radius:4px;margin-left:6px;white-space:nowrap}.progress-pill.started{background:#edf5e9;color:#638653}.chapter-row>svg{color:#b8c0ab;margin-left:2px}.chapter-panel-footer{display:flex;align-items:center;justify-content:space-between;padding:12px 17px;background:#fcfdfb;border-top:1px solid #edf0e7;font-size:8px;color:#a6b099}.chapter-panel-footer button{font-size:8px;display:flex;align-items:center;gap:6px;color:#839471}.focus-column{padding-top:37px;display:flex;flex-direction:column;gap:15px}.focus-card{position:relative;overflow:hidden;background:#f2f3e9;border:1px solid #e9ecdf;border-radius:10px;padding:22px 19px}.focus-kicker{display:flex;align-items:center;gap:7px;font-size:8px;letter-spacing:1.2px;color:#8d9577}.focus-kicker svg{stroke-width:1.3}.focus-card h3{font-size:23px;line-height:1.4;font-weight:500;letter-spacing:-1px;color:#536044;margin-top:17px;position:relative;z-index:1}.focus-card p{font-size:10px;line-height:1.9;color:#959c82;max-width:180px;margin-top:9px;position:relative;z-index:1}.focus-info{display:flex;gap:15px;margin:18px 0;font-size:8px;color:#959f85;position:relative;z-index:1}.focus-info>span{display:flex;align-items:center;gap:4px}.focus-card .btn{width:100%;min-height:35px;font-size:10px;background:#536444;border-color:#536444;justify-content:space-between;position:relative;z-index:1}.focus-doodle{font-size:107px;position:absolute;right:-32px;top:27px;line-height:1;color:#e4e7d5;transform:rotate(14deg);font-weight:200}.test-promo{padding:16px 14px;border:1px solid #e7eadd;background:#fff;border-radius:9px;display:flex;align-items:center;gap:10px;text-align:left}.promo-icon{width:33px;height:33px;background:#f4f5ee;color:#95a183;display:flex;align-items:center;justify-content:center;border-radius:7px}.test-promo>div:nth-child(2){flex:1}.test-promo strong{font-size:10px;color:#778268;font-weight:500}.test-promo p{font-size:8px;margin-top:5px;color:#a4ad97}.test-promo>svg{color:#9eac8c}.main-footer{display:flex;align-items:center;justify-content:space-between;gap:15px;min-height:75px;font-size:8px;color:#abb39e;margin-top:24px;border-top:1px solid #e9ede2}.main-footer>span:first-child{display:flex;align-items:center;gap:6px}.footer-spark{font-size:17px;color:#a5b08f}.source-link{display:flex;align-items:center;gap:4px;text-decoration:none;font-size:8px;color:#a3ad96}.source-link:hover{text-decoration:underline}.white-panel{border:1px solid var(--line);background:#fff;border-radius:12px;padding:24px}.pill{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:7px 11px;font-size:10px;border:1px solid #e5eadf;border-radius:6px;white-space:nowrap;color:#77866d}.empty-state{display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;padding:45px 20px;gap:14px}.empty-icon{height:62px;width:62px;border-radius:18px;background:#f0f4e9;color:#8b9f74;display:flex;align-items:center;justify-content:center;margin-bottom:5px}.empty-state h3{font-size:18px;color:#68775a;font-weight:500}.empty-state p{max-width:330px;color:#a2aa96;font-size:12px;line-height:1.8}.empty-state .btn{margin-top:5px}.test-landing{display:grid;grid-template-columns:1fr 1fr;border:1px solid #e1e7d8;border-radius:16px;background:#eff3e8;margin-bottom:37px;padding:35px 38px;gap:25px}.test-landing .pill{font-size:8px;letter-spacing:1px;border-color:#dbe4d0}.test-landing-copy>h2{font-size:43px;font-weight:550;letter-spacing:-2px;line-height:1.2;margin:20px 0;color:#425b3c}.test-landing-copy>p{font-size:12px;color:#8c9980;line-height:1.9;margin-bottom:23px}.test-visual{display:flex;align-items:center;justify-content:center}.mock-sheet{transform:rotate(5deg);width:310px;padding:22px;background:#fff;border:1px solid #dde5d4;border-radius:10px;box-shadow:12px 14px #dce5cf99}.mock-title{display:flex;align-items:center;justify-content:space-between;gap:15px;color:#a3b293;margin-bottom:14px}.mock-title span{font-size:6px;letter-spacing:1.4px}.mock-sheet h3{font-size:16px;color:#536b47;margin-bottom:22px}.mock-sheet>div:not(.mock-title):not(.sheet-footer){display:flex;align-items:center;gap:10px;margin-bottom:17px;font-size:9px;color:#879b76}.mock-line{height:4px;background:#e8ede1;border-radius:3px;margin-left:auto}.mock-sheet .stat-icon{width:27px;height:27px}.sheet-footer{font-size:8px;display:flex;gap:8px;align-items:center;border-top:1px solid #e7ecdf;padding-top:17px;color:#a5b297}.sheet-footer span{margin-left:auto;font-size:20px;color:#577546}.test-history{padding:0 23px}.history-row{display:flex;align-items:center;gap:15px;padding:22px 0;width:100%;text-align:left;border-bottom:1px solid #e9ede3}.history-row:last-child{border:0}.history-row .chapter-info h3{font-size:13px}.history-row .chapter-info p{font-size:10px}.history-score strong{font-size:18px;display:block;color:#59754d;font-family:var(--heading);font-weight:500}.history-score strong small{font-size:11px;color:#acb5a3}.history-score>span{font-size:9px;color:#9aa98c}.review-label{display:flex;gap:7px;align-items:center;font-size:10px;margin-left:25px;color:#859976}.analytics-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:24px}.analytics-stats .stat-card{padding:25px}.analytics-stats .stat-card>span{font-size:11px;color:#9aa48e;display:block;margin-bottom:16px}.analytics-stats .stat-card>strong{font-size:32px}.analytics-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:25px}.analytics-grid .section-title svg{color:#b0bda0}.subject-breakdown{display:flex;align-items:center;gap:13px;margin-top:25px}.subject-breakdown>div{flex:1}.subject-breakdown h3{font-family:var(--font);display:flex;justify-content:space-between;font-size:12px;font-weight:500;margin-bottom:10px;color:#758567}.subject-breakdown h3 span{font-size:10px;color:#9eae8c}.subject-breakdown p{font-size:9px;color:#aab69b;margin-top:7px}.week-chart{height:173px;display:flex;align-items:flex-end;justify-content:space-between;gap:15px;padding-top:8px}.week-chart>div{display:flex;flex-direction:column;height:100%;align-items:center;gap:8px;flex:1;font-size:10px;color:#94a480}.bar-area{flex:1;width:100%;display:flex;align-items:flex-end;max-width:32px;background:#f7f9f3;border-radius:5px}.bar-area i{width:100%;background:#bacfa5;border-radius:5px}.week-chart small{font-size:8px;color:#9faa92}.chart-note{font-size:9px;color:#a7b398;margin-top:21px;line-height:1.7}.focus-areas{margin-bottom:35px}.focus-areas .empty-state{padding:25px}.notebooks-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.notebook-card{min-height:235px;position:relative;text-align:left;border:1px solid #e0e7d6;background:#edf2e5;border-radius:10px;padding:30px 27px;overflow:hidden}.notebook-card:nth-child(2n){background:#f3edf7;border-color:#e7dced}.notebook-card:nth-child(3n){background:#f8efe6;border-color:#eadfce}.notebook-card>svg:first-of-type{color:#8aa270;margin-bottom:28px}.notebook-card h3{font-size:20px;color:#5c7149;line-height:1.5}.notebook-card p{font-size:10px;color:#9eab8e;margin-top:9px}.notebook-card>svg:last-child{position:absolute;bottom:25px;right:24px;color:#93a280}.notebook-spine{position:absolute;left:11px;top:0;bottom:0;border-left:1px solid #bacaa699}.new-notebook{background:transparent!important;border:1px dashed #ccd8be!important;text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center}.new-notebook h3{font-size:14px;font-weight:500}.new-notebook>svg:first-of-type{margin-bottom:20px}.back-link{margin-bottom:20px}.collection-toolbar{display:flex;gap:15px;margin-bottom:25px}.collection-toolbar .search-field{height:39px}.collection-toolbar .search-field input{font-size:12px}.saved-list{display:flex;flex-direction:column;gap:20px}.saved-header{display:flex;align-items:center;gap:12px;margin-bottom:25px}.saved-header>span:nth-child(2){font-size:10px;color:#a0ac95}.saved-header .icon-button{margin-left:auto}.saved-question .rich{font-size:15px;line-height:1.9;margin-bottom:20px}.saved-question .text-button{margin-top:10px}.saved-note{display:flex;gap:10px;padding:15px;background:#f4f6ed;border-radius:7px;font-size:12px;color:#8a9977;margin:15px 0;line-height:1.8}.saved-note p{white-space:pre-wrap}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;background:#1b2f2866;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);display:flex;align-items:center;justify-content:center;padding:30px;animation:fade-in .15s ease}.modal{background:#fcfdf9;border-radius:17px;border:1px solid #fff9;width:480px;max-width:100%;max-height:90vh;overflow:auto;padding:28px;box-shadow:0 25px 100px #152c2638}.modal.wide{width:690px}.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:15px;margin-bottom:25px}.modal-head .eyebrow{font-size:7px;letter-spacing:1.4px}.modal-head h2{font-size:25px;font-weight:600;letter-spacing:-.8px;line-height:1.5;margin-top:6px}.icon-button{padding:7px;width:32px;height:32px;border-radius:7px;display:inline-flex;align-items:center;justify-content:center;color:#9aa98a;flex-shrink:0}.icon-button:hover{background:#ecf0e4;color:#63804e}.modal-description{font-size:12px;line-height:1.9;color:#95a086;margin-bottom:23px}.modal-actions{display:flex;align-items:center;justify-content:flex-end;gap:12px;margin-top:25px}.chapter-summary{display:flex;align-items:center;gap:13px;background:#f3f6ee;border:1px solid #e7ecdf;border-radius:10px;padding:17px;margin-bottom:25px}.chapter-summary .chapter-icon{height:46px;width:46px;background:#e6eedb}.chapter-summary strong{font-size:12px;font-weight:500;color:#738565}.chapter-summary p{font-size:10px;color:#a2ae94;margin-top:6px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.form-grid>label,.form-label{display:flex;flex-direction:column;gap:9px;font-size:11px;color:#7d8e6b;font-weight:500}.form-label{margin:20px 0}.form-grid select,.form-grid input:not([type=checkbox]),.form-label select,.form-label input,.form-label textarea{padding:11px 12px;background:#fff;border:1px solid #e2e9d8;border-radius:7px;width:100%;font-size:11px;min-height:40px;font-weight:400;color:#7f8d72;max-width:100%}.form-hint{font-size:8px;font-weight:400;color:#a9b49c;margin-top:-3px}.check-options{display:flex;flex-direction:column;justify-content:center;gap:11px}.check-options label{font-size:10px;color:#8b9a79;display:flex;align-items:center;gap:6px}input[type=checkbox]{accent-color:#668353;width:14px;height:14px;cursor:pointer;flex-shrink:0}.pool-count{display:flex;align-items:center;gap:7px;margin:24px 0 16px;font-size:10px;color:#95a27f}.mode-cards{display:grid;grid-template-columns:1fr 1fr;gap:15px}.mode-cards>button{padding:23px;border:1px solid #e1e9d7;border-radius:11px;background:#fff;text-align:left}.mode-cards>button:hover:not(:disabled){border-color:#a3ba8c;background:#f7faf2}.mode-icon{height:41px;width:41px;border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:18px}.mode-cards h3{display:flex;align-items:center;justify-content:space-between;font-size:14px;font-weight:600;color:#607b4a}.mode-cards h3 svg{color:#a3b691}.mode-cards p{font-size:10px;line-height:1.9;margin-top:11px;color:#9caa8b}.mode-tag{display:block;font-size:7px;letter-spacing:1px;margin-top:19px;color:#a0ad8e}.data-note{font-size:10px;line-height:1.85;padding:12px 14px;border-radius:7px;background:#f4f2e8;color:#aaa17b;display:flex;gap:9px;margin-top:18px}.data-note svg{margin-top:2px}.error-message{padding:12px 14px;background:#fff0eb;border:1px solid #f0d1c6;color:#ae7563;font-size:11px;border-radius:7px;margin-top:17px;line-height:1.7}.builder-label{display:flex;gap:10px;align-items:center;margin:25px 0 15px}.builder-label strong{font-size:12px;color:#6e855b;font-weight:500}.builder-label>span:last-child:not(.step-num){font-size:9px;color:#a1b28f;margin-left:auto}.step-num{display:flex;align-items:center;justify-content:center;width:23px;height:23px;font-size:10px;border-radius:50%;background:#e8f0dd;color:#859f6b}.builder-tabs{display:flex;gap:4px;background:#eef2e7;padding:4px;border-radius:7px;margin-bottom:14px}.builder-tabs>button{flex:1;padding:9px 6px;display:flex;gap:6px;align-items:center;justify-content:center;font-size:10px;color:#9baa8b;border-radius:5px}.builder-tabs>button.selected{background:#fff;box-shadow:0 1px 3px #41662a10;color:#637f4c}.chapter-check-list{max-height:198px;border:1px solid #e2e9d9;background:#fff;border-radius:8px;overflow:auto;padding:4px 14px}.chapter-check-list label{display:flex;align-items:center;gap:9px;padding:9px 0;font-size:10px;color:#849a6f;cursor:pointer}.chapter-check-list small{margin-left:auto;font-size:8px;color:#adbb9f}.chapter-check-list .select-all{font-weight:500;border-bottom:1px solid #e9eee2;padding:11px 0}.builder-bottom{justify-content:space-between}.builder-bottom>span{font-size:10px;color:#9dae8e}.builder-bottom strong{font-weight:500;color:#778f63}.builder-bottom i{font-style:normal;margin:0 8px}.settings-divider{height:1px;background:#e5ebdb;margin:26px 0}.settings-divider+h3{font-size:15px;font-weight:500;color:#688252;margin-bottom:8px}.backup-actions{display:flex;gap:12px;margin-top:20px}.source-note{display:flex;gap:12px;margin-top:28px;padding:17px;background:#f1f5e9;border-radius:9px;color:#93a67e}.source-note strong{font-size:10px;font-weight:500;color:#7c9465}.source-note p{font-size:9px;line-height:1.9;margin-top:6px;color:#a1b28c}.toast{position:fixed;bottom:26px;left:calc(50% + 114px);transform:translate(-50%);z-index:150;max-width:calc(100vw - 40px);padding:14px 18px;background:#244b36;color:#ecf5df;box-shadow:0 8px 25px #1a392e28;border-radius:10px;font-size:12px;display:flex;align-items:center;gap:11px;animation:fade-in .2s}.toast>svg{color:#bdcfaa}.toast button{padding:0;color:#b2c9a3;display:flex}.mobile-menu{display:none}.practice-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}.practice-title{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:26px}.practice-title h1{font-size:26px;letter-spacing:-.8px;font-weight:650}.practice-title p{font-size:11px;margin-top:9px;color:#9cab8b}.practice-layout{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:24px;align-items:start}.question-card{background:#fff;border:1px solid #e4eadd;border-radius:12px;padding:25px 28px;min-width:0}.question-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.question-header>div{display:flex;gap:7px}.q-number{font-size:9px;letter-spacing:1.1px;color:#819a6b;font-weight:600}.q-number span{color:#b5c2a7;font-weight:400}.bookmarked{color:#739957;background:#eff5e6}.question-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}.question-tags>span{font-size:8px;padding:5px 8px;background:#f5f7f0;color:#98a888;border-radius:4px}.rich{font-family:var(--font);font-size:14px;line-height:1.95;color:#4a5645;overflow-wrap:break-word;min-width:0}.rich p{margin:0 0 13px}.rich p:last-child{margin-bottom:0}.rich img,.question-image{display:block;max-width:100%!important;height:auto!important;object-fit:contain;margin:15px 0}.rich table{border-collapse:collapse;max-width:100%;font-size:12px}.rich td,.rich th{padding:5px;border:1px solid #ddd}.rich .katex{font-size:1.07em;line-height:1.5}.rich .katex-display{overflow-x:auto;overflow-y:hidden;padding:5px 0}.rich .katex-html{white-space:normal}.image-error{min-height:75px;border:1px dashed #ddceab;padding:15px;background:#fffbec;font-size:11px;color:#a89972}.question-text{margin-bottom:26px;font-size:15px;line-height:2.1}.answer-options{display:flex;flex-direction:column;gap:11px}.answer-option{display:flex;align-items:center;text-align:left;gap:13px;width:100%;padding:14px;border:1px solid #e6ebdf;border-radius:8px;min-height:56px;background:#fff;opacity:1!important}.answer-option:hover:not(:disabled){background:#f7faf2;border-color:#b5c7a4}.answer-option.selected{border-color:#99b580;background:#f0f6e9}.option-letter{height:25px;width:25px;background:#f5f7f0;border:1px solid #e7ecdf;color:#91a47f;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:10px;flex-shrink:0}.answer-option.selected .option-letter{background:#dce9cc;border-color:#dce9cc;color:#6c8952}.answer-option .rich{font-size:13px;flex:1;line-height:1.9}.option-radio{width:13px;height:13px;border:1px solid #d1dcc5;display:flex;align-items:center;justify-content:center;border-radius:50%;flex-shrink:0;margin-left:auto}.option-radio i{width:7px;height:7px;border-radius:50%;background:#829e67}.option-radio.checkbox,.option-radio.checkbox i{border-radius:2px}.answer-option.correct{background:#eef6e8;border-color:#a4c28e}.answer-option.correct .option-letter{background:#dceccd;color:#749759;border-color:#cee2b9}.answer-option.wrong{background:#fdf0eb;border-color:#e8c0b3}.answer-option.wrong .option-letter{background:#f7ddd3;color:#c08b78;border-color:#f1d3c6}.answer-option.wrong .option-radio{border-color:#cfaa98}.answer-option.wrong .option-radio i{background:#cba088}.answer-option>img{max-width:65%;height:auto}.question-actions{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:26px;min-height:39px}.question-actions>.small{display:flex;align-items:center;gap:6px;color:#9daf8b}.question-navigation{display:flex;align-items:center;justify-content:space-between;gap:8px;border-top:1px solid #e7eddf;margin-top:25px;padding-top:23px}.question-navigation>span{font-size:9px;color:#a9b69a}.practice-aside .white-panel{padding:20px}.practice-aside .section-title h3{font-size:12px;color:#788e65;font-weight:500}.practice-aside .section-title>svg{color:#a6b992}.session-progress>span{font-size:9px;color:#a3b391;display:block;margin-bottom:10px}.question-palette{display:grid;grid-template-columns:repeat(5,1fr);gap:7px;margin:23px 0;max-height:245px;overflow-y:auto}.question-palette>button{border:1px solid #e6eddd;background:#fbfcf8;border-radius:5px;height:29px;font-size:10px;color:#acb99d;position:relative}.question-palette>button.answered{background:#e7f0dc;border-color:#c7d9b5;color:#7a9960}.question-palette>button.current{border:1.5px solid #76995a;color:#618047;box-shadow:0 0 0 2px #e8f0de}.question-palette>button.marked:after{content:"";width:6px;height:6px;background:#b8a2d0;border-radius:50%;position:absolute;top:2px;right:2px}.palette-legend{display:flex;flex-wrap:wrap;gap:9px 14px;font-size:7px;color:#a0b18d}.palette-legend span{display:flex;align-items:center;gap:4px}.palette-legend i{display:block;width:6px;height:6px;background:#f8faf4;border:1px solid #e0e8d6;border-radius:2px}.palette-legend .answered{background:#dcebcf;border-color:#bbd2a5}.palette-legend .marked{background:#e0d4ec;border-color:#c4afdb}.full-width{width:100%;margin-top:24px}.practice-tip{background:#f0f4e7;border:1px solid #e4ebd7;border-radius:10px;padding:22px;margin-top:20px;color:#a2b68b}.practice-tip h3{font-size:14px;font-weight:500;color:#8aa36f;margin:15px 0 10px}.practice-tip p{font-size:10px;line-height:1.9;color:#a9b996}.timer-box{display:flex;align-items:center;gap:8px;padding:12px 16px;border:1px solid #e1dded;background:#f4f1fa;border-radius:8px;color:#ac9bbe}.timer-box strong{font-family:var(--heading);font-weight:600;font-size:20px;color:#9680ac;font-variant-numeric:tabular-nums}.timer-box span{font-size:8px}.timer-box.urgent{background:#fff1e9;color:#cc9276;border-color:#ebc7b2}.timer-box.urgent strong{color:#b27e63}.numerical-answer{margin:15px 0;display:flex;flex-direction:column;gap:11px;max-width:330px}.numerical-answer label{font-size:11px;color:#99ab86}.numerical-answer input{padding:14px;border:1px solid #dce6d0;border-radius:7px;font-size:13px;background:#fcfef8}.numerical-answer span{font-size:9px;color:#b1bfa0}.solution-box{margin-top:26px;border:1px solid #e0e9d4;background:#f9fcf5;border-radius:10px;padding:22px}.solution-heading{display:flex;align-items:center;gap:10px;margin-bottom:16px}.solution-heading h3{font-size:13px;color:#77985b;font-weight:500}.solution-heading .stat-icon{background:#eaf3df;color:#98b182}.solution-key{font-size:11px;color:#94a97c;border-bottom:1px solid #e4edd9;padding-bottom:17px;margin-bottom:20px;line-height:1.8}.solution-key strong{font-weight:500;color:#729256}.solution-key span{display:block;font-size:10px;margin-top:5px}.solution-box .rich{font-size:13px;line-height:2;color:#6f8060}.solution-box>img{max-width:100%}.solution-foot{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #e5eddb;padding-top:16px;margin-top:22px;gap:10px}.solution-foot>span{font-size:7px;color:#a8b998}.solution-foot .text-button{font-size:9px}.results{max-width:630px;text-align:center;margin:28px auto 40px;background:#fff;border:1px solid #e3ead9;border-radius:16px;padding:50px 35px}.result-icon{display:flex;align-items:center;justify-content:center;margin:0 auto 27px;width:73px;height:73px;border-radius:50%;background:#ebf2df;color:#8eac70}.results .eyebrow{display:block}.results h1{font-size:27px;letter-spacing:-.8px;font-weight:550;color:#587247}.results>p{color:#9eae8c;font-size:12px;margin-top:15px}.result-score{display:flex;align-items:baseline;justify-content:center;gap:8px;margin:33px 0 10px}.result-score strong{font-size:68px;line-height:1.2;font-family:var(--heading);font-weight:500;color:#65824f;letter-spacing:-3px}.result-score span{font-size:20px;color:#bcc9ad}.results>.pill{margin-bottom:25px}.result-breakdown{display:flex;justify-content:center;gap:60px;border-top:1px solid #e9eee0;border-bottom:1px solid #e9eee0;padding:22px;margin:15px 0 25px}.result-breakdown strong{font-family:var(--heading);font-size:28px;font-weight:500;display:block;margin-bottom:7px}.result-breakdown span{font-size:10px;color:#a6b495}.result-actions{display:flex;align-items:center;justify-content:center;gap:13px;margin-top:30px}.app-loading{height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:22px;background:#f8faf4}.app-loading h2{font-size:18px;font-weight:500;color:#8da178}.app-loading .brand-mark{width:47px;height:47px;font-size:36px;border-radius:13px;animation:pulse 1.5s infinite}.loading-dots{color:#b7c7a4}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes pulse{50%{opacity:.5;transform:scale(.96)}}@media(min-width:1500px){.main-content{padding:40px 55px 0}.hero{min-height:304px}.hero-copy{padding:34px 39px}.hero h2{font-size:40px}.hero p{font-size:12px}.hero-kicker{font-size:9px}.hero-actions>.btn{padding:12px 19px;font-size:12px}.stats-row{gap:20px}.stat-card{padding:21px}.stat-top>span:first-child{font-size:11px}.stat-card>strong{font-size:28px}.stat-card>small{font-size:10px}.subject-card{padding:23px 26px}.subject-card h3{font-size:20px}.subject-card p{font-size:11px}.subject-meta{font-size:10px}.subject-card-top{margin-bottom:19px}.bank-grid{grid-template-columns:minmax(0,1fr) 280px;gap:25px}.chapter-info h3{font-size:12px}.chapter-info p{font-size:9px}.chapter-row{padding:18px 0}.focus-card{padding:27px 22px}.focus-card h3{font-size:25px}.subject-tabs button{font-size:11px}.bank-tools{padding-top:17px;padding-bottom:12px}.bank-tools select,.search-field input{font-size:10px}.hero-actions>span{font-size:10px}}@media(max-width:1200px){.sidebar{width:205px;padding-inline:15px}.main-shell{margin-left:205px}.topbar{padding-inline:27px}.main-content{padding:28px 27px 0}.brand{font-size:23px}.brand-mark{width:31px;height:32px;font-size:25px}.brand{gap:7px;margin-left:8px}.bank-grid{grid-template-columns:minmax(0,1fr) 226px;gap:18px}.subject-tabs{gap:15px;padding-inline:15px}.subject-tabs button{font-size:9px}.chapter-row{gap:9px}.chapter-row .progress-pill{display:none}.hero-copy{padding:27px}.hero h2{font-size:31px}.hero p{font-size:10px}.hero-actions{gap:12px}.hero-actions>span{font-size:8px}.orbit-art{min-width:260px;margin-right:1%;width:42%}.hero-kicker{font-size:7px}.stat-card{padding:13px 14px}.stat-top>span:first-child{font-size:9px}.stat-card>small{font-size:8px}.stat-card>strong{font-size:24px}.stats-row{gap:12px}.stat-icon{width:25px;height:25px}.stat-top{gap:3px}.focus-card{padding:20px 17px}.focus-card h3{font-size:22px}.focus-info{gap:9px;font-size:7px}.subject-card{padding:17px 18px}.subject-card p{font-size:9px}.chapter-count{min-width:38px;margin-left:0}.focus-column{padding-top:37px}.section-title h2{font-size:16px}.practice-layout{grid-template-columns:minmax(0,1fr) 205px;gap:17px}.question-card{padding:22px}.practice-aside .white-panel{padding:17px}.question-palette{gap:5px}.question-palette>button{height:27px}.toast{left:calc(50% + 102px)}}@media(max-width:1020px){.sidebar{width:192px;padding-inline:13px}.main-shell{margin-left:192px}.brand{font-size:22px;margin-left:5px}.brand-mark{width:30px;height:31px}.nav-item{font-size:11px;gap:9px}.nav-label{font-size:8px}.exam-switch{padding:10px 8px;gap:7px}.exam-switch small{font-size:7px}.main-content,.topbar{padding-inline:24px}.bank-grid{grid-template-columns:1fr}.focus-column{padding-top:0;display:grid;grid-template-columns:1fr 1fr;align-items:stretch}.focus-card{padding:20px}.focus-card h3{font-size:23px}.test-promo{justify-content:center;align-self:stretch;padding:25px}.test-promo strong{font-size:13px}.test-promo p{font-size:10px;line-height:1.8}.hero h2{font-size:28px}.hero-copy{padding:25px}.hero p{font-size:10px}.hero-actions>span{display:none}.orbit-art{min-width:240px}.formula{font-size:12px;padding:8px 10px}.hero-kicker{font-size:6px}.hero{min-height:245px}.hero-actions .btn{font-size:10px}.stats-row{gap:10px}.stat-card{padding:13px 11px}.stat-top>span:first-child{font-size:8px}.stat-card>small{font-size:7px;line-height:1.7}.stat-icon{height:22px;width:22px}.stat-icon svg{width:14px;height:14px}.stat-card>strong{font-size:22px}.subject-cards{gap:12px}.subject-card{padding:15px}.subject-card h3{font-size:16px}.subject-card>p{font-size:8px}.subject-meta{font-size:8px;gap:6px}.subject-art svg{width:32px}.subject-card-top{margin-bottom:10px}.subject-progress{margin-top:13px}.subject-tabs{gap:25px}.subject-tabs button{font-size:10px}.chapter-row .progress-pill{display:inline}.chapter-info h3{font-size:12px}.chapter-info p{font-size:9px}.chapter-row{padding:17px 0}.date-chip{font-size:9px;padding:8px}.page-heading h1{font-size:29px}.section-title h2{font-size:15px}.text-button{font-size:9px}.main-footer,.source-link{font-size:7px}.footer-right{display:none}.test-landing{padding:28px;gap:12px;overflow:hidden}.test-landing-copy h2{font-size:36px}.test-landing-copy p{font-size:10px}.mock-sheet{width:250px;padding:20px}.mock-sheet h3{font-size:13px}.mock-line{max-width:40px}.mock-title span{font-size:5px}.notebooks-grid{grid-template-columns:1fr 1fr}.practice-layout{grid-template-columns:1fr}.practice-aside{display:grid;grid-template-columns:1.2fr 1fr;gap:18px}.practice-tip{margin:0}.question-palette{grid-template-columns:repeat(10,1fr)}.practice-aside .full-width{margin-top:17px}.practice-title h1{font-size:24px}.analytics-grid{gap:15px}.analytics-grid .white-panel{padding:18px}.week-chart{gap:7px}.white-panel .section-title h2{font-size:14px}.header-season{font-size:8px}.header-actions{gap:15px}.toast{left:calc(50% + 96px)}}@media(max-width:800px){.sidebar{width:190px}.main-shell{margin-left:190px}.main-content{padding:25px 20px 0}.topbar{padding:0 20px;height:66px}.header-season,.header-divider{display:none}.page-heading h1{font-size:27px}.page-heading p{font-size:11px}.page-heading .date-chip{display:none}.hero{min-height:250px}.hero-copy{padding:25px;min-width:60%}.hero h2{font-size:27px}.orbit-art{min-width:190px;margin-left:-30px;opacity:.8}.orbit-caption{display:none}.formula{font-size:10px}.formula-one{top:27%;left:17%}.formula-two{bottom:30%;right:2%}.formula-three{bottom:24%;left:4%}.hero-kicker{font-size:5px;letter-spacing:.8px}.stats-row{grid-template-columns:1fr 1fr;gap:12px}.stat-card{padding:15px}.stat-top>span:first-child{font-size:10px}.stat-card>strong{font-size:25px}.stat-card>small{font-size:9px}.stat-icon{width:27px;height:27px}.stat-icon svg{width:16px;height:16px}.subject-cards{gap:9px}.subject-card{padding:14px 11px}.subject-card h3{font-size:13px}.subject-card p{font-size:7px}.subject-meta{gap:4px;font-size:6px;margin-top:14px}.subject-art{height:35px;width:32px}.subject-art svg{width:28px;height:28px}.round-arrow{width:20px;height:20px}.round-arrow svg{width:15px;height:15px}.subject-progress{gap:6px}.section-title h2{font-size:14px}.section-title .text-button{font-size:8px}.section-title{gap:9px}.subject-tabs{gap:17px}.subject-tabs button{font-size:9px}.chapter-row .progress-pill{display:none}.chapter-info h3{font-size:11px}.focus-column{grid-template-columns:1fr 1fr}.test-promo{padding:18px;flex-direction:column;align-items:flex-start;position:relative}.test-promo>div:nth-child(2){flex:0}.test-promo>svg{position:absolute;top:20px;right:16px}.test-promo strong{font-size:15px}.test-promo p{font-size:10px}.focus-card h3{font-size:20px}.focus-card p{font-size:9px}.focus-info{font-size:6px;gap:7px}.focus-card .btn{font-size:9px;padding:9px 11px}.focus-card{padding:19px 16px}.test-landing{grid-template-columns:1fr;padding:25px}.test-visual{display:none}.analytics-stats{gap:12px}.analytics-stats .stat-card{padding:16px}.analytics-stats .stat-card>span{font-size:9px;line-height:1.6}.analytics-stats .stat-card>strong{font-size:25px}.analytics-grid{grid-template-columns:1fr}.week-chart{height:150px}.notebook-card{padding:27px 23px}.notebook-card h3{font-size:17px}.notebook-card p{font-size:9px}.review-label{display:none}.history-row{gap:11px}.history-row .chapter-info h3{font-size:11px}.history-row .chapter-info p{font-size:8px}.history-score strong{font-size:16px}.history-score>span{font-size:8px}.practice-title h1{font-size:21px}.timer-box span{display:none}.practice-aside{grid-template-columns:1fr}.practice-tip{display:none}.question-card{padding:20px}.question-text{font-size:14px}.question-navigation .btn{font-size:10px;padding:10px 12px}.results{padding:36px 25px}.results h1{font-size:22px}.modal.wide{width:620px}}@media(max-width:680px){.sidebar{transform:translate(-100%);transition:transform .25s;width:232px;padding:27px 20px}.sidebar.is-open{transform:translate(0)}.sidebar-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:35;background:#24332666;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.brand{font-size:27px;margin-bottom:27px}.brand-mark{width:35px;height:36px}.nav-item{font-size:13px;min-height:44px;gap:13px}.nav-label{font-size:9px}.exam-switch strong{font-size:13px}.exam-switch small{font-size:8px}.main-shell{margin-left:0}.mobile-menu{display:flex;margin-right:1px}.topbar{height:64px;padding-inline:15px}.desktop-crumb{display:none}.breadcrumb{gap:7px;font-size:11px}.header-actions{gap:18px}.header-streak{font-size:9px}.header-streak span{display:none}.main-content{padding:25px 19px 0}.page-heading{margin-bottom:23px;align-items:flex-start}.page-heading h1{font-size:29px;letter-spacing:-1.2px}.page-heading p{font-size:11px}.eyebrow{font-size:7px;letter-spacing:1.5px;margin-bottom:10px}.hero{min-height:247px;border-radius:11px}.hero-copy{padding:24px 20px;min-width:58%}.hero h2{font-size:29px;letter-spacing:-1.2px}.hero p{font-size:9px;line-height:1.9;margin:13px 0 21px}.hero-kicker{font-size:5px;letter-spacing:.8px;margin-bottom:16px}.orbit-art{min-width:195px;width:44%;margin-left:-17px;margin-right:-27px}.orbit-art svg{transform:scale(1.1)}.formula-three{left:-1%}.formula-two{right:12%;bottom:28%}.hero-actions .btn{font-size:10px;padding:10px 12px}.stats-row{margin-bottom:29px;gap:12px}.stat-card{padding:16px}.stat-top>span:first-child{font-size:10px}.stat-card>small{font-size:8px}.stat-card>strong{font-size:25px}.section-title{align-items:center;gap:10px;margin-bottom:17px}.section-title h2{font-size:16px;line-height:1.5}.section-title p{font-size:9px;margin-top:5px}.section-title .text-button{font-size:8px;gap:4px}.subject-cards{gap:10px}.subject-card{padding:16px 13px}.subject-card h3{font-size:15px;letter-spacing:-.6px}.subject-card>p{font-size:7px;line-height:1.7;min-height:23px}.subject-card-top{margin-bottom:12px}.subject-art{height:35px;width:32px}.subject-art svg{width:31px;height:31px}.round-arrow{width:21px;height:21px}.subject-meta{font-size:7px;margin-top:10px;gap:5px;flex-wrap:wrap;row-gap:5px}.subject-progress{margin-top:13px;gap:7px}.subject-progress>span{font-size:7px;min-width:13px}.subject-card .progress-track{height:3px}.subjects-section{margin-bottom:27px}.bank-grid{gap:19px}.subject-tabs{padding-inline:15px;gap:21px;min-height:48px;justify-content:space-between}.subject-tabs button{font-size:9px}.subject-tabs .subject-dot{width:4px;height:4px}.bank-tools{padding:13px 13px 7px}.chapter-list{padding-inline:13px}.chapter-row{gap:10px;padding:15px 0}.chapter-info h3{font-size:11px;line-height:1.6;margin-bottom:4px}.chapter-info p{font-size:8px;gap:5px}.chapter-count strong{font-size:11px}.chapter-count span{font-size:7px}.chapter-count{min-width:38px;gap:4px}.chapter-row>svg{width:13px}.chapter-panel-footer{font-size:7px;padding:13px}.chapter-panel-footer button{font-size:7px;gap:4px}.bank-tools select{max-width:95px;font-size:8px;padding-inline:4px}.search-field kbd{display:none}.focus-card{padding:20px}.focus-kicker{font-size:7px}.focus-card h3{font-size:22px}.focus-info{font-size:7px;gap:10px;flex-wrap:wrap;margin:16px 0}.focus-card .btn{font-size:10px}.test-promo{padding:23px 20px;justify-content:flex-start;gap:19px}.test-promo strong{font-size:16px;line-height:1.6}.test-promo p{font-size:10px;line-height:1.9;margin-top:8px}.test-promo>svg{top:28px;right:20px}.test-promo .promo-icon{width:39px;height:39px}.main-footer{flex-wrap:wrap;justify-content:space-between;gap:10px;margin-top:25px;padding:19px 0;min-height:73px;font-size:7px}.source-link{font-size:7px}.toast{left:50%;width:max-content;font-size:11px;bottom:20px}.page-heading>.btn{padding:9px 10px;font-size:9px;gap:6px;margin-top:4px}.page-heading>.pill{display:none}.test-landing{padding:26px}.test-landing-copy h2{font-size:40px}.test-landing-copy p{font-size:11px}.test-history{padding-inline:16px}.history-row .chapter-info h3{font-size:11px}.history-score strong{font-size:18px}.test-history .chapter-icon{width:33px;height:33px}.analytics-stats{gap:10px}.analytics-stats .stat-card{padding:17px 13px}.analytics-stats .stat-card>span{font-size:9px}.analytics-stats .stat-card>strong{font-size:28px}.analytics-grid .white-panel{padding:23px}.analytics-grid .section-title h2{font-size:17px}.week-chart{height:170px;gap:18px}.focus-areas{padding:21px}.focus-areas .section-title h2{font-size:17px}.notebooks-grid{gap:14px}.notebook-card{padding:24px;min-height:218px}.notebook-card h3{font-size:17px}.new-notebook h3{font-size:13px}.collection-toolbar .btn{font-size:9px;padding:9px 10px;gap:7px}.collection-toolbar .search-field input{font-size:10px}.saved-question{padding:20px}.saved-question .rich{font-size:13px}.saved-header{gap:7px;flex-wrap:wrap}.saved-header .pill{font-size:8px}.saved-header>span:nth-child(2){font-size:8px}.modal-backdrop{padding:16px}.modal{padding:24px;max-height:92vh;border-radius:13px}.modal-head h2{font-size:23px;line-height:1.4}.modal-head .eyebrow{font-size:6px}.modal-head{gap:10px;margin-bottom:21px}.modal-description{font-size:11px}.form-grid{gap:15px}.form-grid>label,.form-label{font-size:10px}.form-grid select,.form-grid input:not([type=checkbox]),.form-label select,.form-label input,.form-label textarea{font-size:11px;padding:11px 8px}.check-options label{font-size:9px;gap:4px}.form-hint{font-size:7px;line-height:1.7}.mode-cards{gap:11px}.mode-cards>button{padding:18px 15px}.mode-cards h3{font-size:13px}.mode-cards p{font-size:9px}.mode-tag{font-size:6px;letter-spacing:.6px}.mode-icon{width:37px;height:37px}.modal .data-note{font-size:9px;padding:11px}.modal-actions .btn{font-size:10px}.builder-bottom>span{font-size:9px}.builder-bottom i{margin:0 4px}.builder-tabs>button{font-size:9px;padding:9px 4px}.chapter-check-list{max-height:180px}.chapter-check-list label{font-size:9px}.practice-heading{margin-bottom:24px}.practice-heading .text-button{font-size:10px}.practice-heading .pill{font-size:8px}.practice-title h1{font-size:23px}.practice-title p{font-size:10px}.timer-box{padding:10px;gap:5px}.timer-box strong{font-size:17px}.timer-box svg{width:15px}.question-card{padding:20px 18px}.question-tags>span{font-size:7px}.question-tags{gap:6px;margin-bottom:21px}.question-text{font-size:14px}.q-number{font-size:9px}.answer-option{gap:10px;padding:13px 11px}.answer-option .rich{font-size:12px}.question-actions .btn{font-size:10px;padding:10px 12px}.question-navigation .btn{font-size:9px;padding:10px 11px;gap:7px}.question-navigation>span{font-size:8px}.question-palette{grid-template-columns:repeat(10,1fr);gap:6px}.question-palette>button{height:30px}.practice-aside .white-panel{padding:21px}.practice-aside .section-title h3{font-size:15px}.palette-legend{font-size:8px}.solution-box{padding:18px}.solution-heading h3,.solution-box .rich{font-size:12px}.solution-key{font-size:10px}.solution-foot{flex-wrap:wrap}.solution-foot>span{font-size:7px}.results{padding:37px 23px}.results h1{font-size:24px}.result-breakdown{gap:50px}.result-actions .btn{font-size:10px}}@media(max-width:400px){.main-content{padding-inline:15px}.page-heading h1{font-size:26px}.hero-copy{padding:23px 18px;min-width:66%}.hero h2{font-size:27px}.hero-kicker{font-size:4.5px}.orbit-art{opacity:.65;min-width:175px;margin-left:-35px;margin-right:-50px}.hero p{font-size:8px}.hero-actions{position:relative;z-index:2}.subject-card{padding:13px 10px}.subject-card h3{font-size:13px}.subject-card>p{font-size:6px}.subject-meta{font-size:6px;gap:3px}.subject-card .round-arrow{width:17px;height:17px}.round-arrow svg{width:13px;height:13px}.subject-art{width:28px}.subject-art svg{width:28px}.subject-cards{gap:8px}.section-title h2{font-size:14px}.section-title .text-button{font-size:7px}.focus-card{padding:17px 14px}.focus-card h3{font-size:21px}.focus-card p{font-size:9px}.test-promo{padding:20px 16px}.test-promo strong{font-size:15px}.test-promo p{font-size:9px}.focus-info{gap:7px;font-size:6px}.subject-tabs{gap:14px}.subject-tabs button{font-size:8px}.subject-tabs .subject-dot{display:none}.stat-card{padding:14px}.stat-card>small{font-size:7px}.stat-top>span:first-child{font-size:9px}.chapter-info h3,.chapter-count strong{font-size:10px}.modal{padding:21px}.mode-cards>button{padding:16px 12px}.mode-cards h3{font-size:12px}.mode-cards h3 svg{width:15px}.mode-cards p{font-size:8px}.form-grid{column-gap:12px}.builder-bottom{align-items:flex-end}.builder-bottom>span{font-size:8px}.builder-bottom .btn{font-size:9px;padding:10px 12px}.notebook-card{padding:23px 20px}.notebook-card h3{font-size:15px}.new-notebook h3{font-size:12px}.question-palette{grid-template-columns:repeat(8,1fr)}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}.page-heading p,.stat-top>span:first-child,.stat-card>small,.section-title p{color:#78816f}.hero p{color:#748064}.subject-card>p{opacity:.9}.chapter-info p{color:#869478}.chapter-count>span,.progress-pill{color:#88957a}.focus-card p{color:#7f896e}.hero-actions>span{color:#818e72}.nav-label{color:#88947c}.chapter-panel-footer,.main-footer,.source-link{color:#89977c}.theme-toggle{width:33px;height:33px;border:1px solid var(--line);border-radius:9px;display:inline-flex;align-items:center;justify-content:center;color:#728366;background:#fff}.theme-toggle:hover{background:#edf3e7;color:#31553c}html[data-theme=dark]{color-scheme:dark;--bg:#11141b;--white:#191d27;--ink:#dadee8;--muted:#989da9;--green:#91a2c9;--dark:#151c2b;--line:#29303f;--mint:#272d3c;--peach:#3b3026;--lilac:#312e40;--yellow:#242b39}[data-theme=dark] :is(.sidebar,.chapter-panel,.white-panel,.stat-card,.question-card,.results,.test-promo,.search-field,.mode-cards>button,.mock-sheet){background:#191d27;border-color:#29303f}[data-theme=dark] .topbar{background:#151820;border-color:#29303f}[data-theme=dark] :is(.modal,.app-loading){background:#171b23;border-color:#2f3749}[data-theme=dark] :is(.exam-switch,.daily-goal,.chapter-panel-footer,.chapter-check-list,.theme-toggle,.btn.outline){background:#1e232f;border-color:#2e3647;color:#adb6c9}[data-theme=dark] :is(.hero,.test-landing){background:#222734;border-color:#30384b}[data-theme=dark] :is(.hero h2,.hero h2>span,.hero-actions>span>strong,.test-landing-copy>h2){color:#bdc8df}[data-theme=dark] :is(.hero p,.hero-kicker,.hero-actions>span,.test-landing-copy>p){color:#96a0b5}[data-theme=dark] .formula{background:#232937ed;border-color:#3b465d;color:#acb8d2}[data-theme=dark] .orbit-art svg{opacity:.75}[data-theme=dark] :is(.nav-item,.breadcrumb strong,.header-streak strong){color:#a7afc1}[data-theme=dark] :is(.nav-item:hover,.nav-item.active,.subject-active,.theme-toggle:hover){background:#272e3e;color:#bdc9e3}[data-theme=dark] :is(.tiny-badge,.nav-count,.progress-pill,.question-tags>span,.pill,.sheet-footer){background:#232937;color:#97a3bd;border-color:#31394c}[data-theme=dark] .avatar{background:#2b3344;border-color:#222835;box-shadow:0 0 0 1px #394258;color:#b9c2d7}[data-theme=dark] .mint{background:#282f3f;color:#8d9ec4}[data-theme=dark] .peach{background:#3b3028;color:#d1a982}[data-theme=dark] .lilac{background:#322f43;color:#ada7d4}[data-theme=dark] .yellow{background:#232a39;color:#cebd7d}[data-theme=dark] .subject-card.mint{background:#262d3c;border-color:#333c4f}[data-theme=dark] .subject-card.peach{background:#3b3028;border-color:#4b3c30}[data-theme=dark] .subject-card.lilac{background:#302d40;border-color:#3f3c52}[data-theme=dark] .subject-card h3{color:#c0cadf}[data-theme=dark] .subject-card.peach h3{color:#e0c4a8}[data-theme=dark] .subject-card.lilac h3{color:#cdc9e8}[data-theme=dark] .subject-card :is(.round-arrow,.subject-progress .progress-track){background:#ffffff12;color:inherit}[data-theme=dark] :is(.stat-card>strong,.chapter-info h3,.chapter-count strong,.section-title h2,.test-promo strong,.focus-card h3,.empty-state h3,.modal-head h2,.practice-title h1,.results h1,.result-score strong){color:#c3cbde}[data-theme=dark] :is(.page-heading p,.stat-top>span:first-child,.stat-card>small,.section-title p,.chapter-info p,.chapter-count>span,.hero-actions>span,.nav-label,.chapter-panel-footer,.main-footer,.source-link,.muted,.focus-card p,.test-promo p,.empty-state p,.modal-description,.practice-title p){color:#969eaf}[data-theme=dark] :is(.focus-card,.practice-tip,.source-note,.chapter-summary,.solution-box,.saved-note){background:#1f2531;border-color:#30384b}[data-theme=dark] .focus-doodle{color:#2c3446}[data-theme=dark] :is(.focus-kicker,.focus-info,.focus-card p,.practice-tip h3,.practice-tip p,.source-note p,.source-note strong,.chapter-summary strong,.chapter-summary p,.solution-heading h3,.solution-key,.solution-key strong){color:#9aa7c4}[data-theme=dark] :is(.chapter-row,.subject-tabs,.history-row,.question-navigation,.solution-key,.solution-foot,.settings-divider,.main-footer,.select-all){border-color:#2b3243}[data-theme=dark] .chapter-row:hover{background:#202633}[data-theme=dark] :is(.subject-tabs button.selected,.text-button,.chapter-panel-footer button){color:#a0b0d4}[data-theme=dark] :is(.progress-track,.mock-line){background:#2d3547}[data-theme=dark] .progress-track i{background:#7d8fb6}[data-theme=dark] .btn.primary{background:#95a5c9;border-color:#95a5c9;color:#181d27}[data-theme=dark] .btn.primary:hover:not(:disabled){background:#a9b8d9;border-color:#a9b8d9}[data-theme=dark] .btn.outline:hover:not(:disabled){background:#2a3243}[data-theme=dark] :is(.form-grid select,.form-grid input:not([type=checkbox]),.form-label select,.form-label input,.form-label textarea,.numerical-answer input,.bank-tools select){background:#1e232f;border-color:#353e53;color:#c3cbde}[data-theme=dark] :is(.form-grid>label,.form-label,.check-options label,.chapter-check-list label,.builder-label strong,.builder-bottom strong,.mode-cards h3,.mode-cards p,.mode-tag,.pool-count,.numerical-answer label){color:#a2adc7}[data-theme=dark] :is(.search-field input::placeholder,.form-hint,.chapter-check-list small,.builder-label>span,.numerical-answer span){color:#8a93a8}[data-theme=dark] .builder-tabs{background:#1f2531}[data-theme=dark] .builder-tabs>button.selected{background:#313a4d;color:#c7d0e3}[data-theme=dark] .mode-cards>button:hover:not(:disabled){background:#252c3b;border-color:#606f90}[data-theme=dark] .data-note{background:#373322;color:#d1c28e}[data-theme=dark] .error-message{background:#402a24;border-color:#6a4335;color:#edba9e}[data-theme=dark] .icon-button{color:#9ba7c1}[data-theme=dark] .icon-button:hover,[data-theme=dark] .bookmarked{background:#2c364b;color:#abbde5}[data-theme=dark] .rich{color:#ced3de}[data-theme=dark] .solution-box .rich{color:#b9c2d5}[data-theme=dark] .rich img{background:#fff;border-radius:5px;padding:6px}[data-theme=dark] .answer-option{background:#191d27;border-color:#333c4f}[data-theme=dark] .answer-option:hover:not(:disabled){background:#232a3a;border-color:#637396}[data-theme=dark] .answer-option.selected,[data-theme=dark] .answer-option.correct{background:#262f42;border-color:#6c7ea7}[data-theme=dark] .answer-option.wrong{background:#422c27;border-color:#986951}[data-theme=dark] .option-letter{background:#252b39;border-color:#323a4d;color:#a4b2d2}[data-theme=dark] :is(.answer-option.correct .option-letter,.answer-option.selected .option-letter){background:#32405f;border-color:#495878;color:#c2cfed}[data-theme=dark] .answer-option.wrong .option-letter{background:#694436;border-color:#895c45;color:#edc3a7}[data-theme=dark] .question-palette>button{background:#212633;border-color:#353f54;color:#98a5c3}[data-theme=dark] .question-palette>button.answered{background:#2f3b56;border-color:#4c5c7f;color:#c9d4ed}[data-theme=dark] .question-palette>button.current{border-color:#8ea4d4;color:#c1d0f0;box-shadow:0 0 0 2px #333e55}[data-theme=dark] :is(.timer-box,.notebook-card:nth-child(2n)){background:#322f43;border-color:#49465e;color:#b7b1db}[data-theme=dark] .timer-box strong{color:#c4bee7}[data-theme=dark] .notebook-card{background:#262c3b;border-color:#353f56}[data-theme=dark] .notebook-card:nth-child(3n){background:#3e3429;border-color:#564634}[data-theme=dark] .notebook-card h3{color:#b6c1d9}[data-theme=dark] :is(.notebook-card p,.new-notebook h3,.result-breakdown span,.results>p,.history-score>span){color:#94a1bd}[data-theme=dark] :is(.empty-icon,.result-icon,.bar-area){background:#252c3d;color:#8a9dc6}[data-theme=dark] .bar-area i{background:#7185b0}[data-theme=dark] .green{color:#92a6d4}[data-theme=dark] .red{color:#e7ac92}[data-theme=dark] :is(.result-breakdown,.subject-tabs,.question-header){border-color:#2e374b}[data-theme=dark] :is(.chapter-panel-footer,.subject-tabs,.main-footer){color:#8a96b2}[data-theme=dark] :is(input:focus,select:focus,textarea:focus){box-shadow:0 0 0 3px #33405e33}:root{--art-a:#e8efdd;--art-b:#dbe7c9;--art-paper:#fbfff5;--art-line:#78975e;--art-step:#a9c38b;--art-sun:#efe3a4}[data-theme=dark]{--art-a:#202e50;--art-b:#30385a;--art-paper:#d7e3ff;--art-line:#91aaf1;--art-step:#566bb1;--art-sun:#b1a2ef}.mobile-bottom-nav,.mobile-illustration,.mobile-home-actions,.mobile-collection-intro{display:none}@media(max-width:680px){body{font-size:15px}.main-content{padding:25px 20px 100px}.topbar{position:sticky;top:0;z-index:30;background:#f8f9f6ed;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);height:68px;padding:0 18px}.breadcrumb{font-size:15px;gap:10px}.breadcrumb strong{font-weight:600}.header-actions{gap:12px}.header-streak{display:none}.avatar,.theme-toggle,.mobile-menu{width:42px;height:42px}.theme-toggle svg{width:20px;height:20px}.avatar{font-size:15px}.icon-button{min-width:42px;min-height:42px}.mobile-bottom-nav{position:fixed;inset:auto 0 0;display:flex;flex-direction:row;justify-content:space-around;gap:0;margin:0;padding:9px 8px calc(9px + env(safe-area-inset-bottom));border-top:1px solid #e0e6d8;background:#ffffffed;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);z-index:45;box-shadow:0 -8px 28px #253b1806}.mobile-bottom-nav button{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;font-size:11px;font-weight:500;color:#7c8973;min-height:53px}.mobile-bottom-nav button>span{display:flex;align-items:center;justify-content:center;border-radius:12px;width:48px;height:30px}.mobile-bottom-nav button.active{color:#32563a;font-weight:700}.mobile-bottom-nav button.active>span{background:#e5efd9}.page-heading{display:flex;flex-wrap:wrap;gap:18px;margin-bottom:25px}.page-heading h1{font-size:30px;letter-spacing:-1px;line-height:1.25;margin-bottom:12px}.page-heading p{font-size:14px;line-height:1.7;max-width:340px}.eyebrow{font-size:10px;letter-spacing:1.4px;margin-bottom:12px}.page-heading>.btn{min-height:46px;padding:12px 16px;font-size:13px}.page-heading .date-chip{display:none}.hero{display:flex;flex-direction:column;align-items:stretch;padding:0;min-height:0;border-radius:20px;margin-bottom:22px}.hero-copy{padding:25px 24px 0;min-width:0}.hero-kicker{font-size:9px;letter-spacing:.8px;line-height:1.5;margin-bottom:17px}.hero h2{font-size:34px;line-height:1.2;letter-spacing:-1.1px}.hero p{font-size:13px;line-height:1.75;margin:17px 0 20px}.hero-actions{display:block}.hero-actions .btn{width:100%;min-height:49px;font-size:14px;justify-content:space-between;padding:13px 17px;border-radius:11px}.hero .orbit-art{display:none}.mobile-illustration{display:block;width:100%;height:auto;max-height:190px}.hero>.mobile-illustration{padding:14px 15px 12px}.stats-row{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-bottom:31px}.stat-card{border-radius:14px;padding:17px 15px}.stat-top{gap:8px;align-items:flex-start;margin-bottom:13px}.stat-top>span:first-child{font-size:12px;line-height:1.5}.stat-icon{width:30px;height:30px;flex-shrink:0}.stat-icon svg{width:18px;height:18px}.stat-card>strong{font-size:29px}.stat-card>small{font-size:11px;line-height:1.6}.section-title{align-items:flex-start;gap:12px;margin-bottom:17px}.section-title h2{font-size:20px;line-height:1.4;letter-spacing:-.6px}.section-title p{font-size:13px;line-height:1.6;margin-top:7px}.section-title .text-button{font-size:12px;min-height:35px;white-space:normal;text-align:right;justify-content:flex-end;line-height:1.5;min-width:70px}.subject-cards{display:flex;flex-direction:column;gap:13px}.subject-card{border-radius:16px;padding:21px 21px 18px 83px;min-height:122px}.subject-card-top{position:absolute;inset:20px 19px auto 18px;margin:0;pointer-events:none}.subject-art{width:48px;height:48px;border-radius:14px;background:#fff5}.subject-art svg{width:34px;height:34px}.round-arrow{width:32px;height:32px}.round-arrow svg{width:19px;height:19px}.subject-card h3{font-size:21px;padding-right:25px;letter-spacing:-.5px}.subject-card>p{font-size:12px;min-height:0;line-height:1.5;margin-top:7px}.subject-meta{font-size:11px;gap:8px;margin-top:14px}.subject-progress{margin-top:15px;gap:10px}.subject-progress>span{font-size:10px;min-width:23px}.subject-card .progress-track{height:4px}.subjects-section{margin-bottom:30px}.screen-dashboard .bank-grid{display:none}.mobile-home-actions{display:block}.mobile-home-actions .section-title{align-items:center}.mobile-home-actions .section-title h2{font-size:19px}.mobile-home-actions .pill{font-size:10px}.mobile-daily{width:100%;display:flex;text-align:left;align-items:center;gap:13px;padding:20px 17px;background:#edf2e4;border:1px solid #dfe7d5;border-radius:16px}.mobile-daily-icon{height:47px;width:47px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:#dbe8c8;color:#628046;flex-shrink:0}.mobile-daily>span:nth-child(2){flex:1}.mobile-daily strong{font-size:16px;display:block;font-weight:600}.mobile-daily small{display:block;font-size:12px;line-height:1.5;color:#7b896d;margin-top:6px}.mobile-daily>svg{color:#7c9661}.mobile-secondary{display:flex;gap:13px;align-items:center;width:100%;min-height:62px;background:#fff;border:1px solid #e2e8d9;padding:16px 20px;border-radius:14px;margin-top:13px;font-size:14px;color:#677b56}.mobile-secondary span{flex:1;text-align:left}.main-footer{font-size:10px;line-height:1.7;margin-top:27px;gap:10px}.source-link{font-size:10px;min-height:32px}.main-footer>span{width:100%}.screen-bank .chapter-panel{border:0;background:none;overflow:visible}.subject-tabs{border:0;gap:8px;padding:0 0 13px;min-height:0;overflow-x:auto;justify-content:flex-start;scrollbar-width:none}.subject-tabs button{font-size:12px;min-height:43px;padding:11px 14px;background:#fff;border:1px solid #e1e7d8;border-radius:12px;flex-shrink:0;gap:7px}.subject-tabs button.selected{background:#e6eedc;border-color:#bcccaa}.subject-tabs button.selected:after{display:none}.subject-tabs .subject-dot{display:inline-block;width:6px;height:6px}.bank-tools{padding:4px 0 18px;flex-wrap:wrap;gap:10px}.bank-tools .search-field{flex-basis:100%;height:49px;border-radius:11px;padding-inline:14px}.search-field input{font-size:14px}.bank-tools select{font-size:12px;min-height:43px;flex:1;max-width:none;border-radius:9px;padding:0 11px}.chapter-list{padding:0;display:flex;flex-direction:column;gap:12px}.chapter-row{border:1px solid #e3e8dc!important;background:#fff;border-radius:14px;min-height:100px;padding:17px 14px;gap:12px;align-items:center}.chapter-row .chapter-icon{width:44px;height:44px;border-radius:12px}.chapter-row .chapter-icon svg{width:25px;height:25px}.chapter-info h3{font-size:14px;line-height:1.55;margin-bottom:7px;font-weight:500}.chapter-info p{font-size:11px;gap:5px;line-height:1.5;flex-wrap:wrap}.chapter-count{min-width:43px;gap:6px}.chapter-count strong{font-size:14px}.chapter-count>span{font-size:9px}.chapter-row>svg{width:16px;height:16px}.chapter-panel-footer{padding:18px 3px;background:none;border:0;font-size:11px;gap:12px;line-height:1.6}.btn{min-height:47px;border-radius:10px;font-size:13px;padding:12px 16px}.text-button{font-size:12px;min-height:40px}.test-landing{border-radius:18px;padding:27px}.test-landing .pill{font-size:10px}.test-landing-copy h2{font-size:39px}.test-landing-copy p{font-size:14px;line-height:1.8}.test-landing .btn{width:100%;justify-content:space-between}.empty-state{padding:35px 15px}.empty-state h3{font-size:20px;line-height:1.5}.empty-state p{font-size:14px}.test-history{padding:0 16px}.history-row{padding:20px 0;flex-wrap:wrap;gap:12px}.history-row .chapter-info h3{font-size:14px}.history-row .chapter-info p{font-size:11px;line-height:1.7}.history-score>span{font-size:11px}.history-score strong{font-size:21px}.analytics-stats{gap:10px;grid-template-columns:1fr 1fr}.analytics-stats .stat-card{padding:18px}.analytics-stats .stat-card:last-child{grid-column:1/-1}.analytics-stats .stat-card>span{font-size:12px;line-height:1.6}.analytics-grid{gap:17px}.white-panel{border-radius:16px;padding:21px}.analytics-grid .section-title h2{font-size:19px}.subject-breakdown h3{font-size:14px}.subject-breakdown h3 span{font-size:12px}.subject-breakdown p{font-size:11px}.week-chart small,.week-chart>div{font-size:11px}.chart-note{font-size:12px;line-height:1.7}.focus-areas .section-title h2{font-size:19px}.mobile-collection-intro{display:block;margin-bottom:24px}.mobile-collection-intro .mobile-illustration{max-height:185px;margin-bottom:18px}.collection-shortcuts button{display:flex;align-items:center;width:100%;padding:19px 18px;border:1px solid #dfe7d5;border-radius:15px;background:#edf2e4;color:#628046;gap:14px;text-align:left}.collection-shortcuts button>span{flex:1}.collection-shortcuts strong{display:block;font-size:16px;font-weight:600}.collection-shortcuts small{display:block;font-size:12px;margin-top:6px}.notebooks-grid{grid-template-columns:1fr 1fr;gap:13px}.notebook-card{min-height:215px;padding:22px}.notebook-card h3{font-size:18px;line-height:1.5;overflow-wrap:anywhere}.notebook-card p{font-size:12px;line-height:1.6}.new-notebook h3{font-size:15px}.collection-toolbar{flex-wrap:wrap;gap:12px}.collection-toolbar .search-field{height:49px;flex-basis:100%}.collection-toolbar .search-field input{font-size:14px}.collection-toolbar .btn{font-size:13px;min-height:44px}.saved-header .pill{font-size:11px;white-space:normal;max-width:100%}.saved-header>span:nth-child(2){font-size:11px}.saved-question .rich{font-size:16px;line-height:1.85}.saved-note{font-size:14px}.modal-backdrop{padding:0;align-items:stretch;background:var(--bg);-webkit-backdrop-filter:none;backdrop-filter:none}.modal,.modal.wide{width:100%;max-width:100%;max-height:100%;height:100dvh;padding:25px 22px calc(32px + env(safe-area-inset-bottom));border:0;border-radius:0;box-shadow:none;overscroll-behavior:contain}.modal-head{margin-bottom:25px;gap:15px}.modal-head h2{font-size:27px;line-height:1.4}.modal-head .eyebrow{font-size:9px;line-height:1.6}.modal-description{font-size:14px;line-height:1.8}.chapter-summary{padding:18px;border-radius:13px}.chapter-summary strong{font-size:14px;line-height:1.6}.chapter-summary p{font-size:12px}.form-grid{grid-template-columns:1fr;gap:20px}.form-grid>label,.form-label{font-size:14px;gap:10px}.form-grid select,.form-grid input:not([type=checkbox]),.form-label select,.form-label input,.form-label textarea{font-size:16px;min-height:49px;padding:12px;border-radius:9px}.form-hint{font-size:11px;line-height:1.7}.check-options{gap:15px}.check-options label{font-size:13px;gap:10px;min-height:35px}input[type=checkbox]{width:19px;height:19px}.pool-count{font-size:13px;line-height:1.6}.mode-cards{grid-template-columns:1fr;gap:15px}.mode-cards>button{padding:23px;border-radius:14px}.mode-cards h3{font-size:19px}.mode-cards p{font-size:14px;line-height:1.75}.mode-tag{font-size:10px;letter-spacing:.7px}.mode-icon{width:44px;height:44px}.modal .data-note{font-size:12px;padding:15px;line-height:1.8}.builder-label strong{font-size:15px}.builder-label>span:last-child:not(.step-num){font-size:11px}.step-num{height:29px;width:29px;font-size:12px}.builder-tabs>button{font-size:12px;min-height:47px}.builder-tabs>button svg{display:none}.chapter-check-list{max-height:280px;padding-inline:14px}.chapter-check-list label{font-size:13px;min-height:49px;gap:10px;line-height:1.6}.chapter-check-list small{font-size:11px;white-space:nowrap}.builder-bottom{flex-wrap:wrap;gap:17px;border-top:1px solid var(--line);padding-top:22px}.builder-bottom>span{font-size:14px}.builder-bottom .btn{width:100%;font-size:15px;min-height:51px;justify-content:space-between}.modal-actions .btn{font-size:13px;white-space:normal;min-height:47px}.backup-actions{flex-wrap:wrap}.source-note p{font-size:12px;line-height:1.8}.source-note strong{font-size:14px}.small,.error-message{font-size:13px}.practice-main{padding:22px 17px 35px}.practice-heading .text-button{font-size:13px}.practice-heading .pill{font-size:10px;max-width:48%;white-space:normal;text-align:center;line-height:1.5}.practice-title{align-items:flex-start;gap:10px;flex-wrap:wrap}.practice-title h1{font-size:27px;line-height:1.4}.practice-title p{font-size:13px}.timer-box{padding:12px 14px}.timer-box strong{font-size:20px}.question-card{padding:22px 18px;border-radius:16px}.q-number{font-size:11px}.question-header{margin-bottom:16px}.question-tags>span{font-size:11px;line-height:1.5}.question-tags{gap:7px;margin-bottom:23px}.question-text{font-size:17px;line-height:1.9}.answer-option{padding:16px 13px;gap:12px;min-height:64px;border-radius:11px}.answer-option .rich{font-size:16px;line-height:1.8}.option-letter{width:29px;height:29px;font-size:13px}.option-radio{width:17px;height:17px}.rich .katex{font-size:1.04em}.question-actions{gap:11px;flex-wrap:wrap}.question-actions .btn{font-size:13px;min-height:47px;padding:12px 13px}.question-navigation{gap:10px;flex-wrap:wrap;padding-top:21px;margin-top:25px}.question-navigation .btn{font-size:13px;min-height:49px;padding:12px 14px}.question-navigation>span{display:none}.question-navigation .btn:last-child{flex:1}.numerical-answer{max-width:none}.numerical-answer label{font-size:14px}.numerical-answer input{font-size:17px;min-height:53px}.numerical-answer span{font-size:12px;line-height:1.7}.solution-box{padding:20px 15px}.solution-heading h3{font-size:16px;line-height:1.5}.solution-key{font-size:14px}.solution-key span{font-size:13px}.solution-box .rich{font-size:16px;line-height:1.9}.solution-foot>span{font-size:11px;line-height:1.7}.solution-foot .text-button{font-size:13px}.practice-aside .section-title h3{font-size:18px}.session-progress>span{font-size:13px}.question-palette{grid-template-columns:repeat(6,minmax(0,1fr));gap:8px}.question-palette>button{height:43px;font-size:14px;border-radius:8px}.palette-legend{font-size:11px;gap:12px}.results h1{font-size:27px;line-height:1.4}.results>p{font-size:14px;line-height:1.7}.result-breakdown{gap:35px}.result-breakdown span{font-size:13px}.result-actions{flex-direction:column}.result-actions .btn{width:100%;font-size:14px;min-height:49px}.toast{bottom:calc(91px + env(safe-area-inset-bottom));font-size:13px;line-height:1.6}.screen-practice .toast{bottom:24px}.sidebar{padding-bottom:110px}.local-status{font-size:11px}.daily-goal p,.daily-goal button{font-size:12px}.daily-goal strong{font-size:13px}.nav-item{font-size:15px;min-height:49px}.nav-label{font-size:10px}.exam-switch{min-height:70px}.exam-switch strong{font-size:15px}.exam-switch small{font-size:9px}[data-theme=dark] .topbar{background:#142035ed}[data-theme=dark] .mobile-bottom-nav{background:#172238f2;border-color:#30425f;box-shadow:0 -8px 28px #080f2322}[data-theme=dark] .mobile-bottom-nav button{color:#93a5c5}[data-theme=dark] .mobile-bottom-nav button.active{color:#cedcff}[data-theme=dark] .mobile-bottom-nav button.active>span{background:#2d4166}[data-theme=dark] :is(.mobile-daily,.collection-shortcuts button){background:#233253;border-color:#364971;color:#d6e2ff}[data-theme=dark] .mobile-daily-icon{background:#344875;color:#b2c9ff}[data-theme=dark] :is(.mobile-daily small,.mobile-daily>svg){color:#a3b7de}[data-theme=dark] .mobile-secondary{background:#1e2c43;border-color:#344562;color:#b9c9e6}[data-theme=dark] .subject-tabs button{background:#1e2c43;border-color:#344562;color:#a8bbdf}[data-theme=dark] .subject-tabs button.selected{background:#31456e;border-color:#617ca7;color:#deebff}[data-theme=dark] .chapter-row{background:#1b293e;border-color:#30435f!important}[data-theme=dark] .screen-bank .chapter-panel{background:none}[data-theme=dark] .subject-art{background:#ffffff0d}[data-theme=dark] .modal{background:#152136}}@media(max-width:370px){.main-content{padding-inline:15px}.hero-copy{padding:23px 20px 0}.hero h2{font-size:31px}.hero-kicker{font-size:8px}.subject-card{padding-left:75px}.subject-art{width:42px;height:42px}.subject-card h3{font-size:20px}.chapter-row{padding:15px 11px;gap:9px}.chapter-info h3{font-size:13px}.chapter-count{min-width:34px}.chapter-count>span{font-size:8px}.chapter-row .chapter-icon{width:36px;height:40px}.stat-top>span:first-child{font-size:11px}.question-navigation .btn{font-size:12px}.modal{padding-inline:18px}.question-palette{grid-template-columns:repeat(5,1fr)}}