@import url(https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600;700&display=swap);@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_AMS-Regular.73ea273a72f4aca30ca5.woff2) format("woff2"),url(/static/media/KaTeX_AMS-Regular.d562e886c52f12660a41.woff) format("woff"),url(/static/media/KaTeX_AMS-Regular.853be92419a6c3766b9a.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/static/media/KaTeX_Caligraphic-Bold.a1abf90dfd72792a577a.woff2) format("woff2"),url(/static/media/KaTeX_Caligraphic-Bold.d757c535a2e5902f1325.woff) format("woff"),url(/static/media/KaTeX_Caligraphic-Bold.7489a2fbfb9bfe704420.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Caligraphic-Regular.d6484fce1ef428d5bd94.woff2) format("woff2"),url(/static/media/KaTeX_Caligraphic-Regular.db074fa22cf224af93d7.woff) format("woff"),url(/static/media/KaTeX_Caligraphic-Regular.7e873d3833eb108a0758.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/static/media/KaTeX_Fraktur-Bold.931d67ea207ab37ee693.woff2) format("woff2"),url(/static/media/KaTeX_Fraktur-Bold.354501bac435c3264834.woff) format("woff"),url(/static/media/KaTeX_Fraktur-Bold.4c761b3711973ab04edf.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Fraktur-Regular.172d3529b26f8cedef6b.woff2) format("woff2"),url(/static/media/KaTeX_Fraktur-Regular.6fdf0ac577be0ba82a4c.woff) format("woff"),url(/static/media/KaTeX_Fraktur-Regular.ed305b5434865e06ffde.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/static/media/KaTeX_Main-Bold.39890742bc957b368704.woff2) format("woff2"),url(/static/media/KaTeX_Main-Bold.0c3b8929d377c0e9b2f3.woff) format("woff"),url(/static/media/KaTeX_Main-Bold.8169508bf58f8bd92ad8.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/static/media/KaTeX_Main-BoldItalic.20f389c4120be058d80a.woff2) format("woff2"),url(/static/media/KaTeX_Main-BoldItalic.428978dc7837d46de091.woff) format("woff"),url(/static/media/KaTeX_Main-BoldItalic.828abcb200061cffbaae.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/static/media/KaTeX_Main-Italic.fe2176f79edaa716e621.woff2) format("woff2"),url(/static/media/KaTeX_Main-Italic.fd947498bc16392e76c2.woff) format("woff"),url(/static/media/KaTeX_Main-Italic.fa675e5e4bec9eb250b6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Main-Regular.f650f111a3b890d116f1.woff2) format("woff2"),url(/static/media/KaTeX_Main-Regular.4f35fbcc9ee8614c2bcc.woff) format("woff"),url(/static/media/KaTeX_Main-Regular.9eba1d77abcf2aa6e94e.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/static/media/KaTeX_Math-BoldItalic.dcbcbd93bac0470b462d.woff2) format("woff2"),url(/static/media/KaTeX_Math-BoldItalic.3f07ed67f06c720120ce.woff) format("woff"),url(/static/media/KaTeX_Math-BoldItalic.bf2d440b3a42ea78a998.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/static/media/KaTeX_Math-Italic.6d3d25f4820d0da8f01f.woff2) format("woff2"),url(/static/media/KaTeX_Math-Italic.96759856b4e70f3a8338.woff) format("woff"),url(/static/media/KaTeX_Math-Italic.8a5f936332e8028c7278.ttf) format("truetype")}@font-face{font-display:block;font-family:"KaTeX_SansSerif";font-style:normal;font-weight:700;src:url(/static/media/KaTeX_SansSerif-Bold.95591a929f0d32aa282a.woff2) format("woff2"),url(/static/media/KaTeX_SansSerif-Bold.b9cd458ac6d5889ff9c3.woff) format("woff"),url(/static/media/KaTeX_SansSerif-Bold.5b49f4993ae22d7975b4.ttf) format("truetype")}@font-face{font-display:block;font-family:"KaTeX_SansSerif";font-style:italic;font-weight:400;src:url(/static/media/KaTeX_SansSerif-Italic.7d393d382f3e7fb1c637.woff2) format("woff2"),url(/static/media/KaTeX_SansSerif-Italic.8d593cfaa96238d5e2f8.woff) format("woff"),url(/static/media/KaTeX_SansSerif-Italic.b257a18c016f37ee4543.ttf) format("truetype")}@font-face{font-display:block;font-family:"KaTeX_SansSerif";font-style:normal;font-weight:400;src:url(/static/media/KaTeX_SansSerif-Regular.cd5e231e0cc53b2cb2c0.woff2) format("woff2"),url(/static/media/KaTeX_SansSerif-Regular.02271ec5cb9f5b4588ac.woff) format("woff"),url(/static/media/KaTeX_SansSerif-Regular.2f7bc363fc5424ebda59.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Script-Regular.c81d1b2a4b75d3eded60.woff2) format("woff2"),url(/static/media/KaTeX_Script-Regular.073b3402d036714b4370.woff) format("woff"),url(/static/media/KaTeX_Script-Regular.fc9ba5249878cd8f8d88.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Size1-Regular.6eec866c69313624be60.woff2) format("woff2"),url(/static/media/KaTeX_Size1-Regular.0108e89c9003e8c14ea3.woff) format("woff"),url(/static/media/KaTeX_Size1-Regular.6de7d4b539221a49e9e2.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Size2-Regular.2960900c4f271311eb36.woff2) format("woff2"),url(/static/media/KaTeX_Size2-Regular.3a99e70aee4076660d38.woff) format("woff"),url(/static/media/KaTeX_Size2-Regular.57f5c1837853986ea1db.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Size3-Regular.e1951519f6f0596f7356.woff2) format("woff2"),url(/static/media/KaTeX_Size3-Regular.7947224e8a9914fa332b.woff) format("woff"),url(/static/media/KaTeX_Size3-Regular.8d6b6822586eea3d3b20.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Size4-Regular.e418bf257af1052628d8.woff2) format("woff2"),url(/static/media/KaTeX_Size4-Regular.aeffd8025cba3647f1a6.woff) format("woff"),url(/static/media/KaTeX_Size4-Regular.4ad7c7e8bb8d10a34bb7.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Typewriter-Regular.c295e7f71970f03c0549.woff2) format("woff2"),url(/static/media/KaTeX_Typewriter-Regular.4c6b94fd1d07f8beff7c.woff) format("woff"),url(/static/media/KaTeX_Typewriter-Regular.c5c02d763c89380dcb4e.ttf) format("truetype")}.katex{font:normal 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:"0.16.45"}.katex .katex-mathml{clip:rect(1px,1px,1px,1px);border:0;height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;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}:root,[data-theme=dark]{--bg:#0b0d1e;--bg-2:#0f1128;--bg-3:#141630;--card-bg:#ffffff0f;--glass-bg:#ffffff0a;--glass-border:#ffffff14;--border:#ffffff14;--check-off-bg:#f5f5f02e;--text:#f5f5f0;--text-muted:#f5f5f066;--text-muted-2:#f5f5f02e;--primary:#ff8400;--orange:#e8872b;--blue:#3b82f6;--violet:#7c3aed;--mint:#4ecdc4;--pink:#e84393;--red:#e84040;--yellow:#f0c040;--success:#b6ffce;--success-bg:#222924;--warning:#ff8400;--warning-bg:#291c0f;--error:#ff5c33;--error-bg:#24100b;--info:#b2b2ff;--info-bg:#222229;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:20px;--radius-pill:999px;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px;--space-10:40px;--space-12:48px;--space-16:64px;--shadow-sm:0 1px 2px #0006;--shadow-md:0 4px 12px #00000059;--shadow-lg:0 16px 40px #00000073;--shadow-glow:0 0 32px #ff840040;--font-sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--font-mono:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;--container-max:1280px;--header-h:64px;--tabbar-h:64px;--ease:cubic-bezier(0.2,0.8,0.2,1);--dur-fast:140ms;--dur-med:220ms}[data-theme=light]{--bg:#f5f5f7;--bg-2:#ededf0;--bg-3:#e3e3e8;--card-bg:#fff;--glass-bg:#fffc;--glass-border:#0000001a;--border:#0000001a;--check-off-bg:#0000000f;--text:#1a1b2e;--text-muted:#6b728099;--text-muted-2:#6b728045;--success:#004d1a;--success-bg:#dfe6e1;--warning:#804200;--warning-bg:#e9e3d8;--error:#8c1c00;--error-bg:#e5dcda;--info:#006;--info-bg:#dfdfe6;--shadow-sm:0 1px 2px #0000000f;--shadow-md:0 4px 14px #00000014;--shadow-lg:0 16px 40px #0000001f;--shadow-glow:0 0 32px #ff840033}*,:after,:before{box-sizing:border-box}#root,body,html{height:100%}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;transition:background-color var(--dur-med) var(--ease),color var(--dur-med) var(--ease)}body,html{background:var(--bg);color:var(--text);font-family:var(--font-sans)}body{font-size:15px;line-height:1.5;margin:0;min-height:100vh}h1,h2,h3,h4,h5,h6{color:var(--text);font-family:var(--font-sans);font-weight:800;letter-spacing:-.02em;margin:0}h1{font-size:clamp(2rem,4vw,3.5rem);line-height:1.05}h2{font-size:clamp(1.5rem,3vw,2.75rem);font-weight:800;line-height:1.1}h3{font-size:1.125rem;font-weight:700;line-height:1.25}p{color:var(--text);margin:0}a{color:inherit;text-decoration:none}a:hover{color:var(--primary)}button{font-family:inherit}img,svg{display:block;max-width:100%}::selection{background:var(--primary);color:#111}::-webkit-scrollbar{height:10px;width:10px}::-webkit-scrollbar-track{background:#0000}::-webkit-scrollbar-thumb{background:var(--border);border-radius:var(--radius-pill)}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.visually-hidden{clip:rect(0,0,0,0);border:0;height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute!important;white-space:nowrap;width:1px}.container{margin:0 auto;max-width:var(--container-max);padding-left:max(24px,env(safe-area-inset-left));padding-right:max(24px,env(safe-area-inset-right));width:100%}@media (max-width:900px){.container{padding-left:max(20px,env(safe-area-inset-left));padding-right:max(20px,env(safe-area-inset-right))}}@media (max-width:640px){.container{padding-left:max(20px,env(safe-area-inset-left));padding-right:max(20px,env(safe-area-inset-right))}body{font-size:14px}}@media (max-width:380px){.container{padding-left:max(16px,env(safe-area-inset-left));padding-right:max(16px,env(safe-area-inset-right))}}@media (max-width:900px){.batches,.courses-toolbar,.dash,.profile-page,.subtopics,.tasks-page,.theory-page{padding-left:0;padding-right:0}}.app-main{min-height:calc(100vh - var(--header-h))}.toast-stack{bottom:24px;display:flex;flex-direction:column;gap:10px;max-width:360px;position:fixed;right:24px;z-index:100}.toast{animation:toast-in var(--dur-med) var(--ease);background:var(--bg-2);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);color:var(--text);cursor:pointer;padding:14px 16px}.toast--success{border-color:var(--success)}.toast--warning{border-color:var(--warning)}.toast--danger{border-color:var(--error)}.toast__title{font-family:var(--font-mono);font-size:13px;font-weight:600;margin-bottom:4px}.toast__message{color:var(--text-muted);font-size:13px}@keyframes toast-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@media (max-width:640px){.toast-stack{bottom:16px;left:16px;max-width:none;right:16px}}.btn{--btn-bg:var(--primary);--btn-color:#111;--btn-border:#0000;align-items:center;background:var(--btn-bg);border:1px solid var(--btn-border);border-radius:var(--radius-pill);color:var(--btn-color);cursor:pointer;display:inline-flex;font-family:var(--font-sans);font-weight:600;gap:var(--space-2);justify-content:center;letter-spacing:.01em;line-height:1;transition:background-color var(--dur-fast) var(--ease),color var(--dur-fast) var(--ease),border-color var(--dur-fast) var(--ease),transform var(--dur-fast) var(--ease),box-shadow var(--dur-fast) var(--ease);-webkit-user-select:none;user-select:none;white-space:nowrap}.btn:disabled{cursor:not-allowed;opacity:.5}.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.btn:active{transform:scale(.98)}.btn--sm{font-size:13px;padding:8px 14px}.btn--md{font-size:14px;padding:12px 20px}.btn--lg{font-size:15px;padding:16px 28px}.btn--block{width:100%}.btn__icon{align-items:center;display:inline-flex}.btn__label{display:inline-block}.btn--primary{--btn-bg:var(--primary);--btn-color:#111;box-shadow:var(--shadow-sm)}.btn--primary:hover{box-shadow:var(--shadow-glow);filter:brightness(1.08)}.btn--ghost{--btn-bg:#0000;--btn-color:var(--text);--btn-border:var(--border)}.btn--ghost:hover{background:var(--glass-bg);border-color:var(--text-muted)}.btn--danger{--btn-bg:var(--red);--btn-color:#fff}.btn--danger:hover{filter:brightness(1.08)}.btn--link{--btn-bg:#0000;--btn-color:var(--primary);background:none;border:none;border-radius:0;box-shadow:none;padding:0}.btn--link:hover{text-decoration:underline}.btn--link:active{transform:none}.btn--icon{--btn-bg:var(--glass-bg);--btn-color:var(--text);--btn-border:var(--glass-border);height:40px;padding:0;width:40px}.btn--icon.btn--sm{height:32px;width:32px}.btn--icon.btn--lg{height:48px;width:48px}.btn--icon:hover{border-color:var(--primary);color:var(--primary)}.theme-toggle{align-items:center;background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-pill);color:var(--text);cursor:pointer;display:inline-flex;height:40px;justify-content:center;transition:background-color var(--dur-fast) var(--ease),border-color var(--dur-fast) var(--ease),transform var(--dur-fast) var(--ease);width:40px}.theme-toggle:hover{background:var(--bg-3);border-color:var(--primary);color:var(--primary)}.theme-toggle:active{transform:scale(.94)}.lang,.theme-toggle__icon{display:inline-flex}.lang{position:relative}.lang__trigger{align-items:center;background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-pill);color:var(--text);cursor:pointer;display:inline-flex;font-family:var(--font-mono);font-size:12px;font-weight:600;gap:8px;padding:8px 12px;transition:border-color var(--dur-fast) var(--ease),background-color var(--dur-fast) var(--ease)}.lang__trigger:hover{border-color:var(--primary);color:var(--primary)}.lang__flag{font-size:14px;line-height:1}.lang__menu{background:var(--bg-2);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);list-style:none;margin:0;min-width:140px;padding:6px;position:absolute;right:0;top:calc(100% + 6px);z-index:50}.lang__item{align-items:center;background:#0000;border:none;border-radius:8px;color:var(--text);cursor:pointer;display:flex;font-family:var(--font-sans);font-size:13px;gap:8px;padding:8px 10px;width:100%}.lang__item:hover{background:var(--glass-bg)}.lang__item.is-active{color:var(--primary)}.hdr{backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);background:#0000;border-bottom:1px solid #0000;position:sticky;top:0;transition:background-color var(--dur-fast) var(--ease),border-color var(--dur-fast) var(--ease);width:100%;z-index:40}.hdr--scrolled{background:color-mix(in srgb,var(--bg) 80%,#0000);border-bottom-color:var(--border)}.hdr__inner{align-items:center;display:flex;gap:var(--space-4);height:var(--header-h);justify-content:space-between;min-width:0}.hdr__logo{align-items:baseline;color:var(--text);display:inline-flex;font-family:var(--font-mono);font-weight:700;gap:2px;letter-spacing:-.02em}.hdr__mark{font-size:20px}.hdr__mark-accent{color:var(--primary)}.hdr__logo-sub{color:var(--text-muted);font-size:12px;font-weight:500;margin-left:2px}.hdr__nav{align-items:center;display:flex;gap:var(--space-6)}.hdr__nav-link{color:var(--text-muted);font-family:var(--font-mono);font-size:13px;font-weight:500;padding:8px 0;transition:color var(--dur-fast) var(--ease)}.hdr__nav-link.is-active,.hdr__nav-link:hover{color:var(--text)}.hdr__nav-link.is-active:after{background:var(--primary);border-radius:var(--radius-pill);content:"";display:block;height:2px;margin-top:2px;width:100%}.hdr__actions{align-items:center;display:flex;gap:var(--space-2)}.hdr__burger{align-items:center;background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-pill);cursor:pointer;display:none;flex-direction:column;gap:4px;height:40px;justify-content:center;width:40px}.hdr__burger span{background:var(--text);border-radius:2px;display:block;height:2px;width:16px}.hdr__drawer{background:var(--bg-2);border-top:1px solid var(--border);display:none;flex-direction:column;gap:var(--space-4);padding:var(--space-4) var(--space-4) var(--space-6)}.hdr__drawer-nav{display:flex;flex-direction:column}.hdr__drawer-link{border-bottom:1px solid var(--border);color:var(--text);font-family:var(--font-mono);font-size:16px;padding:14px 0}.hdr__drawer-link.is-active{color:var(--primary)}.hdr__drawer-actions{display:flex;flex-direction:column;gap:var(--space-3);padding-top:var(--space-2)}@media (max-width:900px){.hdr__actions,.hdr__nav{display:none}.hdr__burger{display:inline-flex}.hdr__drawer{display:flex}}.ftr{background:var(--bg);border-top:1px solid var(--border);color:var(--text-muted);padding:var(--space-8) 0}.ftr__inner{align-items:center;display:flex;flex-wrap:wrap;gap:var(--space-6);justify-content:space-between}.ftr__brand{align-items:baseline;display:inline-flex;font-family:var(--font-mono);gap:var(--space-3)}.ftr__mark{color:var(--text);font-size:18px;font-weight:700}.ftr__mark-accent{color:var(--primary)}.ftr__meta,.ftr__tag{font-size:12px}.ftr__meta{align-items:center;display:inline-flex;font-family:var(--font-mono);gap:var(--space-3)}.ftr__dot{background:var(--text-muted-2);border-radius:50%;height:4px;width:4px}.ftr__meta a{color:inherit}.ftr__meta a:hover{color:var(--primary)}.tabbar{backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);background:color-mix(in srgb,var(--bg-2) 92%,#0000);border-top:1px solid var(--border);bottom:0;display:none;height:var(--tabbar-h);left:0;position:fixed;right:0;z-index:30}.tabbar__item{align-items:center;color:var(--text-muted);display:flex;flex:1 1;flex-direction:column;font-family:var(--font-mono);font-size:11px;font-weight:500;gap:3px;justify-content:center;padding:6px 0 10px}.tabbar__item.is-active{color:var(--primary)}.tabbar__icon{display:inline-flex}@media (max-width:900px){.tabbar{display:flex}}.badge{align-items:center;border:1px solid #0000;border-radius:var(--radius-pill);display:inline-flex;font-family:var(--font-mono);font-size:11px;font-weight:600;gap:6px;letter-spacing:.04em;padding:4px 10px;text-transform:uppercase;white-space:nowrap}.badge--neutral{background:var(--glass-bg);border-color:var(--border);color:var(--text)}.badge--primary{background:color-mix(in srgb,var(--primary) 18%,#0000);border-color:color-mix(in srgb,var(--primary) 40%,#0000);color:var(--primary)}.badge--success{background:var(--success-bg);color:var(--success)}.badge--warning{background:var(--warning-bg);color:var(--warning)}.badge--danger{background:var(--error-bg);color:var(--error)}.badge--info{background:var(--info-bg);color:var(--info)}.lp{color:var(--text)}.lp-hero{overflow:hidden;padding:80px 0 100px;position:relative}.lp-hero:before{background:radial-gradient(ellipse at 70% 0,color-mix(in srgb,var(--violet) 16%,#0000),#0000 55%),radial-gradient(ellipse at 10% 80%,color-mix(in srgb,var(--primary) 12%,#0000),#0000 55%);content:"";inset:0;pointer-events:none;position:absolute}.lp-hero__inner{grid-gap:60px;align-items:center;display:grid;gap:60px;grid-template-columns:1.1fr 1fr;position:relative}.lp-hero__left{display:flex;flex-direction:column;gap:24px}.lp-hero__title{font-size:clamp(2.25rem,5vw,3.75rem);letter-spacing:-.02em;line-height:1.05;white-space:pre-line}.lp-hero__desc{color:var(--text-muted);font-size:1.0625rem;line-height:1.6;max-width:560px}.lp-hero__cta{display:flex;flex-wrap:wrap;gap:14px}.lp-hero__langs{align-items:center;color:var(--text-muted);display:flex;font-family:var(--font-mono);font-size:12px;gap:14px;margin-top:6px}.lp-hero__art{background:linear-gradient(180deg,color-mix(in srgb,var(--violet) 12%,#0000) 0,color-mix(in srgb,var(--blue) 8%,#0000) 50%,#ffffff08 100%);border:1px solid var(--glass-border);border-radius:var(--radius-xl);height:480px;overflow:hidden;position:relative}.lp-blob{border-radius:50%;filter:blur(90px);height:320px;opacity:.5;position:absolute;width:320px}.lp-blob--violet{background:var(--violet);left:-60px;top:-80px}.lp-blob--blue{background:var(--blue);bottom:-40px;right:-80px}.lp-section{padding:96px 0}.lp-section--bordered{border-top:1px solid var(--border)}.lp-section__header{display:flex;flex-direction:column;gap:14px;margin-bottom:48px;max-width:720px}.lp-section__header--center{align-items:center;margin:0 auto 48px;text-align:center}.lp-section__header h2{font-size:clamp(1.75rem,3.2vw,2.75rem)}.lp-section__header p{color:var(--text-muted);font-size:1rem;line-height:1.6}.lp-section__h2{font-size:clamp(1.75rem,3.2vw,2.75rem);margin:12px 0 48px}.lp-eyebrow{color:var(--text-muted);font-family:var(--font-mono);font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase}.lp-eyebrow--light{color:#ffffffb3}.lp-accent-bar{background:var(--pink);border-radius:2px;height:4px;margin-bottom:12px;width:48px}.lp-steps{grid-gap:20px;display:grid;gap:20px;grid-template-columns:repeat(3,1fr)}.lp-step{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-lg);display:flex;flex-direction:column;gap:12px;min-height:236px;padding:28px}.lp-step__num{color:var(--primary);font-family:var(--font-mono);font-size:42px;font-weight:700;line-height:1}.lp-step h3{font-size:1.125rem}.lp-step p{color:var(--text-muted);font-size:.95rem;line-height:1.55}.lp-topics{grid-gap:16px;display:grid;gap:16px;grid-template-columns:repeat(3,1fr)}.lp-topic{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-lg);display:flex;gap:16px;padding:22px}.lp-topic__num{color:var(--text-muted);font-family:var(--font-mono);font-size:14px;font-weight:600;letter-spacing:.04em}.lp-topic h3{font-size:1rem;margin-bottom:6px}.lp-topic p{color:var(--text-muted);font-size:.85rem;line-height:1.5}.lp-features{grid-gap:24px;display:grid;gap:24px;grid-template-columns:repeat(2,1fr)}.lp-feature{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:28px;transition:border-color var(--dur-fast) var(--ease)}.lp-feature:hover{border-color:color-mix(in srgb,var(--primary) 40%,var(--glass-border))}.lp-feature h3{font-size:1.125rem;margin-bottom:10px}.lp-feature p{color:var(--text-muted);font-size:.95rem;line-height:1.55}.lp-coming{background:var(--violet);color:#fff;padding:96px 0}.lp-coming .lp-eyebrow{color:#ffffffa6}.lp-coming__title{color:#fff;font-size:clamp(1.75rem,3.2vw,3rem);margin:12px 0 40px}.lp-coming__grid{grid-gap:16px 32px;display:grid;gap:16px 32px;grid-template-columns:repeat(2,1fr)}.lp-coming__item{align-items:center;background:#ffffff14;border:1px solid #ffffff26;border-radius:var(--radius-md);display:flex;font-size:1rem;gap:12px;padding:16px 20px}.lp-coming__dot{background:var(--primary);border-radius:50%;box-shadow:0 0 12px var(--primary);flex-shrink:0;height:8px;width:8px}.lp-price__grid{grid-gap:24px;display:grid;gap:24px;grid-template-columns:repeat(2,1fr);margin:0 auto;max-width:820px}.lp-price-card{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-xl);display:flex;flex-direction:column;gap:20px;padding:32px}.lp-price-card--pro{background:linear-gradient(160deg,color-mix(in srgb,var(--primary) 16%,var(--glass-bg)),var(--glass-bg));border-color:color-mix(in srgb,var(--primary) 40%,var(--glass-border));box-shadow:var(--shadow-glow)}.lp-price-card header{align-items:baseline;display:flex;justify-content:space-between}.lp-price-card h3{font-size:1.5rem}.lp-price-card__tag{color:var(--text-muted);font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase}.lp-price-card__value{align-items:baseline;display:flex;font-family:var(--font-mono);gap:4px}.lp-price-card__amount{color:var(--text);font-size:2.75rem;font-weight:700;line-height:1}.lp-price-card__currency{color:var(--text-muted);font-size:1rem}.lp-price-card__period{color:var(--text-muted);font-size:.85rem;margin-left:4px}.lp-price-card__list{color:var(--text-muted);display:flex;flex-direction:column;font-size:.95rem;gap:10px;list-style:none;margin:0;padding:0}.lp-price-card__list li{padding-left:22px;position:relative}.lp-price-card__list li:before{background:var(--primary);border-radius:50%;content:"";height:8px;left:0;position:absolute;top:8px;width:8px}@media (max-width:900px){.lp-hero{padding:56px 0 72px}.lp-hero__inner{gap:40px;grid-template-columns:1fr}.lp-hero__art{height:320px}.lp-section{padding:64px 0}.lp-steps{grid-template-columns:1fr}.lp-topics{grid-template-columns:repeat(2,1fr)}.lp-features{grid-template-columns:1fr}.lp-coming{padding:64px 0}.lp-coming__grid,.lp-price__grid{grid-template-columns:1fr}.lp-hero__card{font-size:18px;inset:24px}}@media (max-width:560px){.lp-topics{grid-template-columns:1fr}.lp-hero__title{font-size:2rem}}.field{display:flex;flex-direction:column;gap:6px;width:100%}.field__label{color:var(--text-muted);font-family:var(--font-sans);font-size:13px;font-weight:500}.field__control{align-items:center;background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius-md);display:flex;gap:var(--space-2);height:48px;padding:0 var(--space-4);transition:border-color var(--dur-fast) var(--ease),background-color var(--dur-fast) var(--ease)}.field__control:focus-within{background:var(--bg-2);border-color:var(--primary)}.field__input{background:#0000;border:none;color:var(--text);flex:1 1;font-family:var(--font-sans);font-size:15px;min-width:0;outline:none}.field__icon,.field__input::placeholder{color:var(--text-muted)}.field__icon{display:inline-flex}.field__hint{color:var(--text-muted);font-size:12px}.field__hint--error{color:var(--error)}.field--error .field__control{border-color:var(--error)}.checkbox{align-items:center;color:var(--text);cursor:pointer;display:inline-flex;font-size:14px;gap:10px;position:relative;-webkit-user-select:none;user-select:none}.checkbox__input{inset:0;opacity:0;pointer-events:none;position:absolute}.checkbox__box{align-items:center;background:var(--check-off-bg);border:1.5px solid var(--text-muted-2);border-radius:5px;color:#0000;display:inline-flex;flex-shrink:0;height:18px;justify-content:center;transition:background-color var(--dur-fast) var(--ease),border-color var(--dur-fast) var(--ease),color var(--dur-fast) var(--ease);width:18px}.checkbox:hover .checkbox__box{border-color:var(--text-muted)}.checkbox__input:checked+.checkbox__box{background:var(--primary);border-color:var(--primary);color:#111}.checkbox__input:focus-visible+.checkbox__box{outline:2px solid var(--primary);outline-offset:2px}.checkbox__label{line-height:1.3}.auth-page{min-height:calc(100vh - var(--header-h));overflow:hidden;padding:48px 0;position:relative}.auth-page__glow{background:radial-gradient(ellipse at 20% 30%,color-mix(in srgb,var(--violet) 16%,#0000),#0000 55%),radial-gradient(ellipse at 80% 70%,color-mix(in srgb,var(--primary) 10%,#0000),#0000 55%);inset:0;pointer-events:none;position:absolute}.auth-page__inner{grid-gap:80px;align-items:center;display:grid;gap:80px;grid-template-columns:1fr 440px;min-height:calc(100vh - var(--header-h) - 96px);position:relative}.auth-info{display:flex;flex-direction:column;gap:28px}.auth-info__brand{color:var(--text-muted);font-family:var(--font-sans);font-size:14px;font-weight:700;letter-spacing:-.01em}.auth-info__brand-accent{color:var(--primary)}.auth-info h1{font-size:clamp(2rem,4.5vw,3.5rem);letter-spacing:-.02em;line-height:1.05}.auth-info__desc{color:var(--text-muted);font-size:1.0625rem;line-height:1.6;max-width:500px}.auth-info__features{display:flex;flex-direction:column;gap:18px;margin-top:8px}.auth-info__feature{align-items:flex-start;display:flex;gap:14px}.auth-info__feature-icon{align-items:center;background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-md);color:var(--primary);display:inline-flex;flex-shrink:0;font-size:18px;height:40px;justify-content:center;width:40px}.auth-info__feature-title{color:var(--text);font-size:15px;font-weight:600;line-height:1.3;margin-bottom:2px}.auth-info__feature-desc{color:var(--text-muted);font-size:13px;line-height:1.5}.auth-card{background:var(--card-bg);border:1px solid var(--glass-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);max-width:440px;padding:36px;position:relative;width:100%}.auth-card__header{display:flex;flex-direction:column;gap:6px;margin-bottom:24px}.auth-card__header h2{font-size:1.5rem;font-weight:800;line-height:1.15}.auth-card__header p{color:var(--text-muted);font-size:.9375rem}.auth-form{display:flex;flex-direction:column;gap:14px}.auth-form__row{align-items:center;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between}.auth-form__forgot{color:var(--primary);font-size:13px;font-weight:500}.auth-form__forgot:hover{text-decoration:underline}.auth-form__error{background:color-mix(in srgb,var(--red) 14%,#0000);border:1px solid color-mix(in srgb,var(--red) 30%,#0000);border-radius:var(--radius-md);color:var(--red);font-size:13px;padding:10px 14px}.auth-eye{align-items:center;background:#0000;border:none;color:var(--text-muted);cursor:pointer;display:inline-flex;justify-content:center;padding:4px}.auth-eye:hover{color:var(--text)}.auth-card__foot{color:var(--text-muted);font-size:.9rem;margin-top:24px;text-align:center}.auth-card__link{color:var(--primary);font-weight:600}.auth-card__link:hover{text-decoration:underline}@media (max-width:960px){.auth-page__inner{gap:40px;grid-template-columns:1fr}.auth-card{margin:0 auto;max-width:100%}.auth-info{align-items:flex-start}}@media (max-width:480px){.auth-card{padding:28px 22px}}.card{border-radius:var(--radius-lg);display:flex;flex-direction:column;padding:var(--space-6);position:relative;transition:transform var(--dur-fast) var(--ease),box-shadow var(--dur-fast) var(--ease),border-color var(--dur-fast) var(--ease),background-color var(--dur-fast) var(--ease)}.card--glass{backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);background:var(--glass-bg);border:1px solid var(--glass-border)}.card--solid{background:var(--card-bg)}.card--outline,.card--solid{border:1px solid var(--border)}.card--outline{background:#0000}.card--accent{background:linear-gradient(135deg,color-mix(in srgb,var(--card-accent) 18%,#0000),#0000 60%),var(--card-bg);border:1px solid color-mix(in srgb,var(--card-accent) 35%,var(--border))}.card--interactive{cursor:pointer}.card--interactive:hover{border-color:color-mix(in srgb,var(--primary) 35%,var(--border));box-shadow:var(--shadow-md);transform:translateY(-2px)}.dash{padding:48px 0 80px}.dash__loading{color:var(--text-muted);padding:48px 0;text-align:center}.dash-list li{cursor:pointer}.dash__head{align-items:center;display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;margin-bottom:32px}.dash__hello{color:var(--text-muted);font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;margin-bottom:4px;text-transform:uppercase}.dash__head h1{font-size:clamp(1.75rem,3vw,2.5rem)}.dash__stats{grid-gap:16px;display:grid;gap:16px;grid-template-columns:repeat(4,1fr);margin-bottom:32px}@media (max-width:480px){.dash__stats{gap:12px}}.dash-stat{gap:6px;justify-content:space-between;min-height:140px;padding:20px}.dash-stat__label{color:var(--text-muted);font-family:var(--font-mono);font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase}.dash-stat__value{color:var(--text);font-family:var(--font-mono);font-size:2.25rem;font-weight:700;line-height:1}.dash-stat__hint{color:var(--text-muted);font-size:12px}.dash__grid{grid-gap:20px;display:grid;gap:20px;grid-template-columns:1.4fr 1fr}.dash-card{gap:14px}.dash-card__head{align-items:center;display:flex;justify-content:space-between}.dash-card__head h2{font-size:1.125rem}.dash-card__title{font-size:1.5rem;margin:4px 0}.dash-card__desc{color:var(--text-muted);font-size:.95rem;line-height:1.55}.dash-card__actions{display:flex;gap:10px;margin-top:8px}.dash-card__progress{display:flex;flex-direction:column;gap:6px}.dash-card__progress-row{color:var(--text-muted);display:flex;font-family:var(--font-mono);font-size:11px;justify-content:space-between;letter-spacing:.04em;text-transform:uppercase}.dash-card__progress-bar{background:var(--check-off-bg);border-radius:var(--radius-pill);height:6px;overflow:hidden}.dash-card__progress-fill{background:var(--primary);height:100%;transition:width var(--dur-med) var(--ease)}.dash-list{display:flex;flex-direction:column;gap:10px;list-style:none;margin:0;padding:0}.dash-list li{align-items:center;background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-md);display:flex;font-size:.95rem;justify-content:space-between;padding:14px 16px}@media (max-width:900px){.dash{padding:24px 0 40px}.dash__head{gap:16px;margin-bottom:24px}.dash__stats{gap:14px;grid-template-columns:repeat(2,1fr);margin-bottom:24px}.dash__grid{gap:14px;grid-template-columns:1fr}.dash__head h1{font-size:1.4rem;line-height:1.25}.dash-card{gap:12px;padding:20px}}@media (max-width:480px){.dash-stat{gap:4px;min-height:92px;padding:14px 16px}.dash-stat__label{font-size:10px}.dash-stat__value{font-size:1.5rem}.dash-stat__hint{font-size:11px}}@media (max-width:360px){.dash__stats{grid-template-columns:1fr}}.chip{align-items:center;background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-pill);color:var(--text-muted);cursor:pointer;display:inline-flex;font-family:var(--font-mono);font-size:12px;font-weight:500;gap:6px;padding:8px 14px;transition:background-color var(--dur-fast) var(--ease),color var(--dur-fast) var(--ease),border-color var(--dur-fast) var(--ease)}.chip:hover{border-color:var(--text-muted);color:var(--text)}.chip--active{background:var(--primary);border-color:var(--primary);color:#111}.courses-page{padding-bottom:80px}.courses-hero{padding:56px 0 40px;position:relative;text-align:center}.courses-hero:before{background:radial-gradient(ellipse at 50% 0,color-mix(in srgb,var(--violet) 14%,#0000),#0000 55%);content:"";inset:0;pointer-events:none;position:absolute}.courses-hero .container{align-items:center;display:flex;flex-direction:column;gap:16px;position:relative}.courses-hero h1{font-size:clamp(2.25rem,4.5vw,3.5rem);font-weight:800;letter-spacing:-.02em}.courses-hero__desc{color:var(--text-muted);font-size:1rem;line-height:1.6;max-width:620px}.courses-stats{display:flex;gap:56px;margin-top:12px}.courses-stats>div{align-items:center;display:flex;flex-direction:column;gap:4px}.courses-stats__num{font-family:var(--font-sans);font-size:2rem;font-weight:800;letter-spacing:-.02em;line-height:1}.courses-stats__num--orange{color:var(--primary)}.courses-stats__num--violet{color:var(--violet)}.courses-stats__num--mint{color:var(--mint)}.courses-stats__lbl{color:var(--text-muted);font-family:var(--font-sans);font-size:12px;font-weight:500}.courses-toolbar{align-items:center;display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;padding-bottom:24px;padding-top:24px}.courses-toolbar__search{max-width:360px;width:100%}.courses-toolbar__filters{display:flex;flex-wrap:wrap;gap:8px}.courses-grid{grid-gap:20px;display:grid;gap:20px;grid-template-columns:repeat(3,1fr)}.course-card{--accent:var(--primary);background:var(--card-bg);border:1px solid var(--glass-border);border-radius:var(--radius-lg);color:var(--text);cursor:pointer;display:flex;flex-direction:column;font-family:inherit;gap:18px;min-height:240px;padding:24px;position:relative;text-align:left;transition:border-color var(--dur-fast) var(--ease),transform var(--dur-fast) var(--ease),box-shadow var(--dur-fast) var(--ease)}.course-card:hover{border-color:color-mix(in srgb,var(--accent) 40%,var(--glass-border));box-shadow:0 12px 32px color-mix(in srgb,var(--accent) 14%,#0000);transform:translateY(-2px)}.course-card--violet{--accent:var(--violet)}.course-card--mint{--accent:var(--mint)}.course-card--blue{--accent:var(--blue)}.course-card--orange{--accent:var(--orange)}.course-card--pink{--accent:var(--pink)}.course-card--primary{--accent:var(--primary)}.course-card--pro{opacity:.78}.course-card--skeleton{animation:pulse 1.2s ease-in-out infinite;background:var(--glass-bg);pointer-events:none}@keyframes pulse{0%,to{opacity:.4}50%{opacity:.8}}.course-card__head{align-items:center;display:flex;justify-content:space-between}.course-card__icon{align-items:center;background:color-mix(in srgb,var(--accent) 18%,#0000);border-radius:var(--radius-md);color:var(--accent);display:inline-flex;font-family:var(--font-mono);font-size:20px;font-weight:700;height:44px;justify-content:center;width:44px}.course-card__tier{border-radius:var(--radius-pill);font-size:10px;font-weight:700;letter-spacing:.08em;padding:4px 10px}.course-card__tier--free{background:color-mix(in srgb,var(--mint) 18%,#0000);color:var(--mint)}.course-card__tier--pro{background:color-mix(in srgb,var(--primary) 20%,#0000);color:var(--primary)}.course-card__body{display:flex;flex-direction:column;gap:6px}.course-card__title{font-size:1.0625rem;font-weight:700;line-height:1.3}.course-card__desc{-webkit-line-clamp:2;-webkit-box-orient:vertical;color:var(--text-muted);display:-webkit-box;font-size:.875rem;line-height:1.5;overflow:hidden}.course-card__foot{display:flex;flex-direction:column;gap:10px;margin-top:auto}.course-card__meta{color:var(--text-muted);font-family:var(--font-sans);font-size:12px}.course-card__progress-row{color:var(--text-muted);display:flex;font-size:11px;justify-content:space-between;margin-bottom:6px}.course-card__progress-bar{background:var(--check-off-bg);border-radius:var(--radius-pill);height:4px;overflow:hidden}.course-card__progress-fill{background:var(--accent);border-radius:inherit;height:100%;transition:width var(--dur-med) var(--ease)}.courses-empty,.courses-error{color:var(--text-muted);grid-column:1/-1;padding:48px 24px;text-align:center}.courses-error{align-items:center;display:flex;flex-direction:column;gap:16px}@media (max-width:900px){.courses-grid{grid-template-columns:repeat(2,1fr)}.courses-stats{gap:32px}}@media (max-width:560px){.courses-grid{grid-template-columns:1fr}.courses-toolbar__search{max-width:none}.courses-stats{gap:24px}.courses-stats__num{font-size:1.75rem}}.upgrade-modal{align-items:center;animation:fade-in var(--dur-fast) var(--ease);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);background:#0000008c;display:flex;inset:0;justify-content:center;padding:20px;position:fixed;z-index:80}@keyframes fade-in{0%{opacity:0}to{opacity:1}}.upgrade-modal__card{background:var(--bg-2);border:1px solid var(--border);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);display:flex;flex-direction:column;gap:14px;max-width:440px;padding:32px;position:relative;text-align:center;width:100%}.upgrade-modal__close{align-items:center;background:#0000;border:none;border-radius:50%;color:var(--text-muted);cursor:pointer;display:inline-flex;font-size:22px;height:32px;justify-content:center;position:absolute;right:14px;top:12px;width:32px}.upgrade-modal__close:hover{background:var(--glass-bg);color:var(--text)}.upgrade-modal__icon{align-items:center;background:color-mix(in srgb,var(--primary) 18%,#0000);border-radius:var(--radius-pill);display:inline-flex;font-size:36px;height:64px;justify-content:center;line-height:1;margin:0 auto;width:64px}.upgrade-modal h2{font-size:1.25rem;font-weight:800;line-height:1.2}.upgrade-modal__sub{color:var(--text-muted);font-family:var(--font-mono);font-size:13px}.upgrade-modal__desc{color:var(--text-muted);font-size:14px;line-height:1.5}.upgrade-modal__plans{grid-gap:10px;display:grid;gap:10px;grid-template-columns:1fr 1fr;margin:6px 0}.upgrade-modal__plan{background:color-mix(in srgb,var(--violet) 12%,var(--card-bg));border:1px solid color-mix(in srgb,var(--violet) 30%,var(--glass-border));border-radius:var(--radius-md);display:flex;flex-direction:column;gap:4px;padding:14px}.upgrade-modal__plan--pro{background:color-mix(in srgb,var(--primary) 12%,var(--card-bg));border-color:color-mix(in srgb,var(--primary) 40%,var(--glass-border))}.upgrade-modal__plan-name{color:var(--text);font-size:13px;font-weight:700}.upgrade-modal__plan-price{color:var(--text-muted);font-family:var(--font-mono);font-size:12px}.upgrade-modal__actions{display:flex;gap:10px;padding-top:6px}.upgrade-modal__actions>*{flex:1 1}.subtopics{padding:24px 0 80px}.subtopics__error,.subtopics__loading{color:var(--text-muted);padding:48px 0;text-align:center}.subtopics__back{align-items:center;color:var(--text-muted);display:inline-flex;font-size:13px;font-weight:500;gap:6px;margin-bottom:20px}.subtopics__back:hover{color:var(--primary)}.subtopics__head{align-items:flex-start;display:flex;gap:24px;padding:16px 0 40px}.subtopics__icon{align-items:center;background:color-mix(in srgb,var(--orange) 18%,#0000);border-radius:var(--radius-lg);display:flex;flex-shrink:0;font-size:36px;height:72px;justify-content:center;width:72px}.subtopics__head-body{flex:1 1}.subtopics__head h1{font-size:clamp(1.875rem,3.2vw,2.75rem);font-weight:800;letter-spacing:-.02em;margin-top:6px}.subtopics__desc{color:var(--text-muted);font-size:1.0625rem;line-height:1.6;margin-top:12px;max-width:720px}.subtopics__stats{align-items:center;color:var(--text-muted);display:flex;font-size:14px;gap:12px;margin-top:20px}.subtopics__stats b{color:var(--text);font-weight:700;margin-right:4px}.subtopics__dot{background:var(--text-muted-2);border-radius:50%;display:inline-block;height:3px;width:3px}.subtopics__actions{display:flex;flex-wrap:wrap;gap:12px;padding-bottom:32px}.subtopics__list{display:flex;flex-direction:column;gap:10px;list-style:none;margin:0;padding:0}.subtopic{grid-gap:16px;align-items:center;background:var(--card-bg);border:1px solid var(--glass-border);border-radius:var(--radius-md);color:var(--text);cursor:pointer;display:grid;font-family:inherit;gap:16px;grid-template-columns:auto auto 1fr auto auto;padding:16px 20px;text-align:left;transition:border-color var(--dur-fast) var(--ease),transform var(--dur-fast) var(--ease);width:100%}.subtopic:hover:not(:disabled){border-color:color-mix(in srgb,var(--primary) 40%,var(--glass-border))}.subtopic:disabled{cursor:not-allowed;opacity:.55}.subtopic__num{color:var(--text-muted);font-family:var(--font-mono);font-size:12px;font-weight:700;letter-spacing:.04em}.subtopic__icon{align-items:center;border-radius:var(--radius-sm);display:inline-flex;height:32px;justify-content:center;width:32px}.subtopic__icon--mint{background:color-mix(in srgb,var(--mint) 20%,#0000);color:var(--mint)}.subtopic__icon--yellow{background:color-mix(in srgb,var(--yellow) 20%,#0000);color:var(--yellow)}.subtopic__icon--primary{background:color-mix(in srgb,var(--primary) 20%,#0000);color:var(--primary)}.subtopic__icon--muted{background:var(--check-off-bg);color:var(--text-muted)}.subtopic__main{min-width:0}.subtopic__main h3{font-size:.9375rem;font-weight:600;line-height:1.3;margin-bottom:3px}.subtopic__meta{align-items:center;color:var(--text-muted);display:inline-flex;font-size:12px;gap:8px}.subtopic__meta .subtopic__dot{background:var(--text-muted-2);border-radius:50%;display:inline-block;height:3px;width:3px}.subtopic__badge{border-radius:var(--radius-pill);font-size:10px;font-weight:700;letter-spacing:.06em;padding:4px 10px;white-space:nowrap}.subtopic__badge--mint{background:color-mix(in srgb,var(--mint) 18%,#0000);color:var(--mint)}.subtopic__badge--yellow{background:color-mix(in srgb,var(--yellow) 18%,#0000);color:var(--yellow)}.subtopic__badge--primary{background:color-mix(in srgb,var(--primary) 20%,#0000);color:var(--primary)}.subtopic__badge--muted{background:var(--check-off-bg);color:var(--text-muted)}.subtopic__chev{color:var(--text-muted);display:inline-flex}.subtopic:hover:not(:disabled) .subtopic__chev{color:var(--text);transform:translateX(2px);transition:transform var(--dur-fast) var(--ease)}@media (max-width:720px){.subtopic{gap:12px;grid-template-columns:auto auto 1fr auto;padding:14px 16px}.subtopic__badge{display:none}.subtopic__meta{flex-wrap:wrap;font-size:11px}.subtopic__main h3{font-size:.875rem}.subtopics__head{flex-direction:column;gap:16px;padding:8px 0 28px}.subtopics__stats{flex-wrap:wrap;font-size:13px;gap:8px 12px}.subtopics__icon{font-size:28px;height:56px;width:56px}.subtopics__head h1{font-size:1.5rem}.subtopics__desc{font-size:.9375rem}}.progress{display:flex;flex-direction:column;gap:6px;width:100%}.progress__label{color:var(--text-muted);display:flex;font-family:var(--font-mono);font-size:11px;justify-content:space-between;letter-spacing:.04em;text-transform:uppercase}.progress__track{background:var(--check-off-bg);border-radius:var(--radius-pill);height:6px;overflow:hidden;position:relative;width:100%}.progress__fill{border-radius:inherit;height:100%;transition:width var(--dur-med) var(--ease)}.progress__fill--primary{background:var(--primary)}.progress__fill--mint{background:var(--mint)}.progress__fill--violet{background:var(--violet)}.progress__fill--blue{background:var(--blue)}.progress__fill--pink{background:var(--pink)}.tasks-page{padding:24px 0 80px}.tasks-loading{color:var(--text-muted);padding:48px 0;text-align:center}.tasks-page__topbar{align-items:center;display:flex;gap:16px;justify-content:space-between;padding:12px 0 20px}.tasks-page__back{color:var(--text-muted);font-size:13px;font-weight:500}.tasks-page__back:hover{color:var(--primary)}.tasks-page__title-row{align-items:baseline;display:flex;flex-wrap:wrap;gap:12px;margin-top:4px}.tasks-page__title-row h1{font-size:1.5rem}.tasks-page__course{color:var(--text-muted);font-family:var(--font-mono);font-size:12px}.tasks-page__batch{background:color-mix(in srgb,var(--primary) 18%,#0000);border-radius:var(--radius-pill);color:var(--primary);font-family:var(--font-mono);font-size:11px;font-weight:700;letter-spacing:.04em;padding:3px 10px}.tasks-page__layout{grid-gap:24px;display:grid;gap:24px;grid-template-columns:260px 1fr;padding-top:8px}.tasks-page__sidebar{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-lg);display:flex;flex-direction:column;gap:16px;height:fit-content;padding:20px;position:sticky;top:calc(var(--header-h) + 16px)}.tasks-page__sidebar-title{font-size:13px;font-weight:700}.tasks-page__grid{grid-gap:8px;display:grid;gap:8px;grid-template-columns:repeat(5,1fr)}.tasks-page__square{align-items:center;aspect-ratio:1;background:var(--card-bg);border:1px solid var(--glass-border);border-radius:8px;color:var(--text-muted);cursor:pointer;display:flex;font-family:var(--font-mono);font-size:13px;font-weight:600;justify-content:center;transition:all var(--dur-fast) var(--ease)}.tasks-page__square:hover{border-color:var(--text-muted);color:var(--text)}.tasks-page__square.is-correct{background:color-mix(in srgb,var(--mint) 22%,#0000);border-color:color-mix(in srgb,var(--mint) 50%,#0000);color:var(--mint)}.tasks-page__square.is-wrong{background:color-mix(in srgb,var(--red) 18%,#0000);border-color:color-mix(in srgb,var(--red) 50%,#0000);color:var(--red)}.tasks-page__square.is-chosen{border-color:color-mix(in srgb,var(--violet) 50%,#0000);color:var(--violet)}.tasks-page__square.is-current{background:var(--primary);border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 28%,#0000);color:#111}.tasks-page__progress{border-top:1px solid var(--glass-border);padding-top:12px}.tasks-page__content{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-lg);display:flex;flex-direction:column;gap:24px;padding:36px}.tasks-page__question{color:var(--text);font-size:1.1875rem;font-weight:500;line-height:1.55}.tasks-page__options{display:flex;flex-direction:column;gap:10px}.task-option{align-items:center;background:var(--card-bg);border:1.5px solid var(--glass-border);border-radius:var(--radius-md);color:var(--text);cursor:pointer;display:flex;font-family:inherit;gap:14px;padding:14px 18px;text-align:left;transition:all var(--dur-fast) var(--ease)}.task-option:hover{border-color:var(--text-muted)}.task-option.is-selected{background:color-mix(in srgb,var(--violet) 10%,var(--card-bg));border-color:var(--violet);box-shadow:0 0 0 1px var(--violet) inset}.task-option.is-locked{cursor:not-allowed}.task-option.is-correct{background:color-mix(in srgb,var(--mint) 14%,var(--card-bg));border-color:var(--mint);box-shadow:0 0 0 1px var(--mint) inset}.task-option.is-correct .task-option__letter{background:var(--mint);border-color:var(--mint);color:#111}.task-option.is-wrong{background:color-mix(in srgb,var(--red) 14%,var(--card-bg));border-color:var(--red);box-shadow:0 0 0 1px var(--red) inset}.task-option.is-wrong .task-option__letter{background:var(--red);border-color:var(--red);color:#fff}.task-option__mark{font-size:1rem;font-weight:800;margin-left:auto}.task-option__mark--ok{color:var(--mint)}.task-option__mark--bad{color:var(--red)}.tasks-page__verify{padding-top:4px}.tasks-page__result{align-items:center;border-radius:var(--radius-md);display:flex;font-size:.9375rem;gap:12px;padding:14px 16px}.tasks-page__result--ok{background:color-mix(in srgb,var(--mint) 14%,#0000);color:var(--text)}.tasks-page__result--bad{background:color-mix(in srgb,var(--red) 14%,#0000);color:var(--text)}.task-option__letter{align-items:center;background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-pill);color:var(--text-muted);display:inline-flex;flex-shrink:0;font-family:var(--font-mono);font-size:13px;font-weight:700;height:28px;justify-content:center;width:28px}.task-option.is-selected .task-option__letter{background:var(--violet);border-color:var(--violet);color:#fff}.task-option__text{flex:1 1;font-size:.9375rem}.tasks-page__solution{background:color-mix(in srgb,var(--violet) 10%,#0000);border:1px solid color-mix(in srgb,var(--violet) 30%,#0000);border-radius:var(--radius-md);display:flex;flex-direction:column;gap:12px;padding:20px 24px}.tasks-page__solution-body p{color:var(--text);font-size:.9375rem;line-height:1.6}.tasks-page__bottom-nav{align-items:center;border-top:1px solid var(--glass-border);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;padding-top:20px}@media (max-width:900px){.tasks-page__layout{gap:16px;grid-template-columns:1fr}.tasks-page__sidebar{padding:16px;position:static}.tasks-page__content{padding:20px}.tasks-page__grid{grid-template-columns:repeat(8,1fr)}.tasks-page__title-row h1{font-size:1.25rem}}@media (max-width:480px){.tasks-page__content{padding:16px}.tasks-page__grid{grid-template-columns:repeat(6,1fr)}.task-option{gap:10px;padding:12px 14px}.task-option__text{font-size:.875rem}.tasks-page__bottom-nav{flex-direction:column}.tasks-page__bottom-nav>*{width:100%}}.batches{padding:24px 0 80px}.batches__loading{color:var(--text-muted);padding:48px 0;text-align:center}.batches__back{align-items:center;color:var(--text-muted);display:inline-flex;font-size:13px;font-weight:500;gap:6px;margin-bottom:20px}.batches__back:hover{color:var(--primary)}.batches__head{display:flex;flex-direction:column;gap:10px;padding:16px 0 28px}.batches__head h1{font-size:clamp(1.875rem,3.2vw,2.75rem);font-weight:800;letter-spacing:-.02em}.batches__meta{color:var(--text-muted);font-size:14px}.batches__actions{padding-bottom:24px}.batches__grid{grid-gap:14px;display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));list-style:none;margin:0;padding:0}@media (max-width:560px){.batches__grid{grid-template-columns:1fr}.batches__head h1{font-size:1.5rem}.batch{padding:16px}}.batch{background:var(--card-bg);border:1px solid var(--glass-border);border-radius:var(--radius-md);color:var(--text);cursor:pointer;display:flex;flex-direction:column;font-family:inherit;gap:10px;padding:20px;position:relative;text-align:left;transition:border-color var(--dur-fast) var(--ease),transform var(--dur-fast) var(--ease),background-color var(--dur-fast) var(--ease);width:100%}.batch:hover{background:color-mix(in srgb,var(--primary) 5%,var(--card-bg));border-color:color-mix(in srgb,var(--primary) 45%,var(--glass-border));transform:translateY(-2px)}.batch__index{color:var(--primary);font-family:var(--font-sans);font-size:1.25rem;font-weight:800;letter-spacing:-.01em}.batch__title{color:var(--text);font-size:.9375rem;font-weight:600;line-height:1.3}.batch__meta{align-items:center;color:var(--text-muted);display:flex;font-family:var(--font-mono);font-size:11px;gap:6px}.batch__sep{opacity:.4}.batch__chev{bottom:18px;color:var(--text-muted);font-family:var(--font-mono);font-size:14px;position:absolute;right:18px}.batch:hover .batch__chev{color:var(--primary)}.batch--done{background:color-mix(in srgb,var(--mint) 8%,var(--card-bg));border-color:color-mix(in srgb,var(--mint) 50%,var(--glass-border))}.batch--done .batch__chev,.batch--done .batch__index{color:var(--mint)}.batch__progress{display:flex;flex-direction:column;gap:4px;margin-top:2px}.batch__progress-row{color:var(--text-muted);display:flex;font-family:var(--font-mono);font-size:11px;justify-content:space-between}.batch__correct{color:var(--mint)}.batch__progress-bar{background:var(--check-off-bg);border-radius:var(--radius-pill);height:4px;overflow:hidden}.batch__progress-fill{background:var(--primary);height:100%;transition:width var(--dur-med) var(--ease)}.batch--done .batch__progress-fill{background:var(--mint)}.theory-page{padding:24px 0 100px}.theory-loading{color:var(--text-muted);padding:48px 0;text-align:center}.theory-page__topbar{align-items:flex-end;border-bottom:1px solid var(--border);display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;padding:12px 0 24px}.theory-page__back{color:var(--text-muted);display:inline-block;font-size:13px;font-weight:500;margin-bottom:6px}.theory-page__back:hover{color:var(--primary)}.theory-page__topbar h1{font-size:1.625rem}.theory-page__layout{grid-gap:40px;display:grid;gap:40px;grid-template-columns:240px 1fr;padding-top:32px}.theory-page__toc{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-lg);height:fit-content;padding:20px;position:sticky;top:calc(var(--header-h) + 16px)}.theory-page__toc h3{font-size:13px;font-weight:700;margin-bottom:10px}.theory-page__toc ul{display:flex;flex-direction:column;gap:2px;list-style:none;margin:0;padding:0}.theory-page__toc button{align-items:center;background:#0000;border:none;border-radius:8px;color:var(--text-muted);cursor:pointer;display:flex;font-family:inherit;font-size:13px;gap:10px;padding:8px 10px;text-align:left;width:100%}.theory-page__toc button:hover{background:var(--glass-bg);color:var(--text)}.theory-page__toc button.is-active{background:color-mix(in srgb,var(--primary) 10%,#0000);color:var(--primary)}.theory-page__toc-icon{flex-shrink:0;text-align:center;width:20px}.theory-page__toc-lbl{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.theory-page__content{display:flex;flex-direction:column;gap:48px;max-width:760px}.theory-section{display:flex;flex-direction:column;gap:12px}.theory-section__tag{align-items:center;align-self:flex-start;border-radius:var(--radius-pill);display:inline-flex;font-family:var(--font-sans);font-size:10px;font-weight:700;gap:6px;letter-spacing:.08em;padding:5px 11px}.theory-section__tag--blue{background:color-mix(in srgb,var(--blue) 18%,#0000);color:var(--blue)}.theory-section__tag--violet{background:color-mix(in srgb,var(--violet) 18%,#0000);color:var(--violet)}.theory-section__tag--mint{background:color-mix(in srgb,var(--mint) 22%,#0000);color:var(--mint)}.theory-section__tag--orange{background:color-mix(in srgb,var(--primary) 20%,#0000);color:var(--primary)}.theory-section__tag--muted{display:none}.theory-section__title{font-size:1.375rem;font-weight:700;letter-spacing:-.01em}.theory-body p{color:var(--text);font-size:1rem;line-height:1.7;margin-bottom:14px}.theory-body p:last-child{margin-bottom:0}.theory-section--formula .theory-body p{background:color-mix(in srgb,var(--violet) 10%,#0000);border-left:3px solid var(--violet);border-radius:var(--radius-sm);font-family:var(--font-mono);font-size:1.0625rem;padding:16px 20px}.theory-section--example .theory-body,.theory-section--proof .theory-body{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-md);padding:16px 20px}.theory-section--definition .theory-body{background:color-mix(in srgb,var(--primary) 8%,#0000);border-left:3px solid var(--primary);border-radius:var(--radius-sm);padding:16px 20px}@media (max-width:900px){.theory-page__layout{gap:20px;grid-template-columns:1fr;padding-top:20px}.theory-page__toc{padding:16px;position:static}.theory-page__topbar h1{font-size:1.25rem}.theory-page__content{gap:32px}}.avatar{align-items:center;background:linear-gradient(135deg,var(--primary),var(--violet));border:2px solid var(--bg);border-radius:var(--radius-pill);color:#111;display:inline-flex;flex-shrink:0;font-family:var(--font-mono);font-weight:700;justify-content:center;overflow:hidden}.avatar img{height:100%;object-fit:cover;width:100%}.avatar__initials{line-height:1}.profile-page{padding:40px 0 80px}.profile-loading{color:var(--text-muted);padding:48px 0;text-align:center}.profile-head{display:flex;flex-direction:column;gap:8px;margin-bottom:32px}.profile-head h1{font-size:clamp(2rem,3.5vw,2.75rem);font-weight:800;letter-spacing:-.02em}.profile-top-stats{grid-gap:16px;display:grid;gap:16px;grid-template-columns:repeat(4,1fr);margin-bottom:24px}.profile-top-stat{background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 14%,#0000),#0000 70%),var(--card-bg);border:1px solid color-mix(in srgb,var(--accent) 28%,var(--glass-border));border-radius:var(--radius-lg);display:flex;flex-direction:column;gap:4px;justify-content:space-between;min-height:100px;padding:20px 22px}.profile-top-stat,.profile-top-stat--orange{--accent:var(--primary)}.profile-top-stat--violet{--accent:var(--violet)}.profile-top-stat--mint{--accent:var(--mint)}.profile-top-stat--blue{--accent:var(--blue)}.profile-top-stat__value{color:var(--accent);font-family:var(--font-sans);font-size:2rem;font-weight:800;letter-spacing:-.02em;line-height:1}.profile-top-stat__label{color:var(--text-muted);font-size:13px;font-weight:500}.profile-layout{grid-gap:20px;display:grid;gap:20px;grid-template-columns:300px 1fr}.profile-aside{display:flex;flex-direction:column;gap:16px}.profile-card{align-items:center;gap:10px;padding:28px 24px;text-align:center}.profile-card__email{color:var(--text-muted);font-size:.8125rem}.profile-card h2{font-size:1.125rem;margin-top:4px}.profile-level{gap:8px;padding:18px 20px}.profile-level__top{align-items:center;display:flex;justify-content:space-between}.profile-level__num{color:var(--primary);font-family:var(--font-sans);font-size:1.75rem;font-weight:800;line-height:1}.profile-level__bar{background:var(--check-off-bg);border-radius:var(--radius-pill);height:6px;overflow:hidden}.profile-level__fill{background:linear-gradient(90deg,var(--primary),var(--violet));height:100%;transition:width var(--dur-med) var(--ease)}.profile-level__xp{color:var(--text-muted);font-size:11px}.profile-gam{grid-gap:12px;display:grid;gap:12px;grid-template-columns:repeat(2,1fr)}.profile-gam__card{align-items:center;border-color:var(--glass-border);gap:4px;padding:14px 16px;text-align:center}.profile-gam__card--orange{background:color-mix(in srgb,var(--primary) 10%,var(--card-bg))}.profile-gam__card--mint{background:color-mix(in srgb,var(--mint) 10%,var(--card-bg))}.profile-gam__value{color:var(--text);font-size:1.125rem;font-weight:700}.profile-gam__lbl{color:var(--text-muted);font-size:11px;letter-spacing:.06em;text-transform:uppercase}.profile-main{display:flex;flex-direction:column;gap:20px}.profile-section{gap:18px;padding:24px 28px}.profile-section__head{align-items:center;display:flex;justify-content:space-between}.profile-section__head h2{font-size:1.125rem;font-weight:700}.profile-section__count{color:var(--text-muted);font-family:var(--font-mono);font-size:12px}.profile-achievements{grid-gap:12px;display:grid;gap:12px;grid-template-columns:repeat(4,1fr)}.ach{align-items:center;background:var(--card-bg);border:1px solid var(--glass-border);border-radius:var(--radius-md);display:flex;flex-direction:column;gap:6px;padding:18px 12px;text-align:center;transition:border-color var(--dur-fast) var(--ease),transform var(--dur-fast) var(--ease)}.ach,.ach--orange{--accent:var(--primary)}.ach--violet{--accent:var(--violet)}.ach--mint{--accent:var(--mint)}.ach--primary{--accent:var(--primary)}.ach--locked{filter:grayscale(.7);opacity:.45}.ach--earned:hover{border-color:color-mix(in srgb,var(--accent) 50%,var(--glass-border));transform:translateY(-2px)}.ach__icon{align-items:center;background:color-mix(in srgb,var(--accent) 18%,#0000);border-radius:var(--radius-md);display:inline-flex;font-size:22px;height:44px;justify-content:center;width:44px}.ach__label{color:var(--text);font-size:12px;font-weight:700}.ach__desc{color:var(--text-muted);font-size:11px;line-height:1.35}.ach__bar{background:var(--check-off-bg);border-radius:var(--radius-pill);height:3px;margin-top:4px;overflow:hidden;width:100%}.ach__fill{background:var(--accent);height:100%;transition:width var(--dur-med) var(--ease)}.ach__progress{color:var(--text-muted);font-family:var(--font-mono);font-size:10px}.profile-heatmap{grid-gap:4px;display:grid;gap:4px;grid-template-columns:repeat(14,1fr)}.profile-heat{aspect-ratio:1;background:var(--check-off-bg);border:1px solid #0000;border-radius:3px}.profile-heat--1{background:color-mix(in srgb,var(--violet) 30%,#0000)}.profile-heat--2{background:color-mix(in srgb,var(--violet) 55%,#0000)}.profile-heat--3{background:var(--violet)}.profile-heatmap-legend{align-items:center;color:var(--text-muted);display:flex;font-size:11px;gap:6px;margin-top:14px}.profile-heatmap-legend .profile-heat{aspect-ratio:unset;height:12px;width:12px}.profile-personal__form{display:flex;flex-direction:column;gap:14px}.profile-personal__actions{display:flex;gap:10px;justify-content:flex-end}.profile-personal__list{display:flex;flex-direction:column;gap:0;margin:0}.profile-personal__list>div{border-bottom:1px solid var(--glass-border);display:flex;gap:16px;justify-content:space-between;padding:14px 0}.profile-personal__list>div:last-child{border-bottom:none}.profile-personal__list dt{color:var(--text-muted);font-size:13px}.profile-personal__list dd{color:var(--text);font-size:14px;font-weight:500;margin:0;text-align:right}.profile-plans{grid-gap:16px;display:grid;gap:16px;grid-template-columns:repeat(3,1fr)}.plan{background:var(--card-bg);border:1px solid var(--glass-border);border-radius:var(--radius-lg);display:flex;flex-direction:column;gap:12px;padding:22px;transition:border-color var(--dur-fast) var(--ease),transform var(--dur-fast) var(--ease)}.plan,.plan--orange{--accent:var(--primary)}.plan--violet{--accent:var(--violet)}.plan--mint{--accent:var(--mint)}.plan:hover{border-color:color-mix(in srgb,var(--accent) 40%,var(--glass-border))}.plan--current{background:color-mix(in srgb,var(--accent) 8%,var(--card-bg));border-color:color-mix(in srgb,var(--accent) 45%,var(--glass-border));box-shadow:0 0 0 1px color-mix(in srgb,var(--accent) 25%,#0000)}.plan__head{align-items:center;display:flex;justify-content:space-between}.plan__head h3{font-size:1.125rem}.plan__head h3,.plan__tag{color:var(--accent);font-weight:700}.plan__tag{background:color-mix(in srgb,var(--accent) 20%,#0000);border-radius:var(--radius-pill);font-family:var(--font-mono);font-size:10px;letter-spacing:.06em;padding:3px 8px}.plan__price{align-items:baseline;display:flex;font-family:var(--font-sans);gap:4px}.plan__amount{font-size:2rem;font-weight:800;letter-spacing:-.02em;line-height:1}.plan__currency{color:var(--text-muted);font-size:1rem}.plan__period{color:var(--text-muted);font-size:12px;margin-left:2px}.plan__price-free{color:var(--text);font-size:1.5rem;font-weight:800}.plan__desc{color:var(--text-muted);font-size:13px;line-height:1.5}.plan__features{display:flex;flex:1 1;flex-direction:column;gap:6px;list-style:none;margin:0;min-height:0;padding:0}.plan__features li{color:var(--text);font-size:13px;line-height:1.4;padding-left:20px;position:relative}.plan__features li:before{color:var(--accent);content:"✓";font-weight:700;left:0;position:absolute;top:0}@media (max-width:900px){.profile-plans{grid-template-columns:1fr}.profile-page{padding:24px 0 40px}.profile-layout{gap:16px;grid-template-columns:1fr}.profile-top-stats{gap:12px;grid-template-columns:repeat(2,1fr);margin-bottom:16px}.profile-top-stat{min-height:90px;padding:16px 18px}.profile-top-stat__value{font-size:1.75rem}.profile-achievements{grid-template-columns:repeat(2,1fr)}.profile-heatmap{grid-template-columns:repeat(7,1fr)}.profile-section{padding:20px}.profile-section__head h2{font-size:1rem}.profile-head h1{font-size:1.75rem}}@media (max-width:480px){.profile-top-stat{min-height:84px;padding:14px 16px}.profile-top-stat__value{font-size:1.5rem}.profile-achievements{grid-template-columns:repeat(2,1fr)}}@media (max-width:360px){.profile-top-stats{grid-template-columns:1fr}}
/*# sourceMappingURL=main.53f916fa.css.map*/