body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}@font-face{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-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-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-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-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-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-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-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-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-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-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-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-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-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-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-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-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-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-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-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;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.23"}.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:-webkit-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 .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;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;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.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{--color-deep-navy:#0c1e3a;--color-ink:#1c2740;--color-teal:#f97316;--color-orange:#f97316;--color-orange-hover:#ea580c;--color-orange-light:#f973161a;--color-off-white:#fafaf8;--color-cool-gray:#d9dde3;--color-success:#10b981;--color-success-light:#10b9811a;--color-warning:#f59e0b;--color-warning-light:#f59e0b1a;--color-error:#ef4444;--color-error-light:#ef44441a;--color-info:#3b82f6;--color-info-light:#3b82f61a;--color-white:#fff;--color-gray-50:#f9fafb;--color-gray-100:#f3f4f6;--color-gray-200:#e5e7eb;--color-gray-300:#d1d5db;--color-gray-400:#9ca3af;--color-gray-500:#6b7280;--color-gray-600:#4b5563;--color-gray-700:#374151;--color-gray-800:#1f2937;--color-gray-900:#111827;--color-bg-primary:#fff;--color-bg-secondary:#f9fafb;--color-bg-alt:#f3f4f6;--color-bg-overlay:#00000080;--color-text-primary:#111827;--color-text-secondary:#6b7280;--color-text-muted:#9ca3af;--color-text-inverse:#fff;--color-border-light:#f3f4f6;--color-border-default:#e5e7eb;--color-border-strong:#d1d5db;--color-border-focus:var(--color-orange);--font-heading:"Inter",sans-serif;--font-body:"Inter",sans-serif;--font-mono:"Menlo","Monaco","Consolas",monospace;--font-weight-normal:400;--font-weight-medium:500;--font-weight-semibold:600;--font-weight-bold:700;--font-weight-extrabold:800;--font-size-xs:0.75rem;--font-size-sm:0.875rem;--font-size-base:1rem;--font-size-lg:1.125rem;--font-size-xl:1.25rem;--font-size-2xl:1.5rem;--font-size-3xl:1.875rem;--font-size-4xl:2.25rem;--line-height-tight:1.25;--line-height-normal:1.5;--line-height-relaxed:1.625;--spacing-xs:0.25rem;--spacing-sm:0.5rem;--spacing-md:0.75rem;--spacing-lg:1rem;--spacing-xl:1.25rem;--spacing-2xl:1.5rem;--spacing-3xl:2rem;--spacing-4xl:2.5rem;--spacing-5xl:3rem;--spacing-6xl:4rem;--border-radius-none:0;--border-radius-sm:0.25rem;--border-radius-md:0.375rem;--border-radius-lg:0.5rem;--border-radius-xl:0.75rem;--border-radius-2xl:1rem;--border-radius-full:9999px;--shadow-xs:0 1px 2px 0 #0000000d;--shadow-sm:0 1px 3px 0 #0000001a,0 1px 2px 0 #0000000f;--shadow-md:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;--shadow-lg:0 10px 15px -3px #0000001a,0 4px 6px -2px #0000000d;--shadow-xl:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a;--shadow-2xl:0 25px 50px -12px #00000040;--shadow-inner:inset 0 2px 4px 0 #0000000f;--focus-ring:0 0 0 3px #f973161a;--focus-ring-offset:2px;--z-dropdown:1000;--z-modal:1050;--z-popover:1100;--z-tooltip:1150;--z-toast:1200;--duration-fast:150ms;--duration-normal:200ms;--duration-slow:300ms;--ease-in:cubic-bezier(0.4,0,1,1);--ease-out:cubic-bezier(0,0,0.2,1);--ease-in-out:cubic-bezier(0.4,0,0.2,1);--input-height:2.75rem;--input-height-sm:2.25rem;--input-height-lg:3.25rem;--button-height:2.75rem;--button-height-sm:2.25rem;--button-height-lg:3.25rem;--breakpoint-sm:640px;--breakpoint-md:768px;--breakpoint-lg:1024px;--breakpoint-xl:1280px;--breakpoint-2xl:1536px}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#fff;color:#1a1a1a;font-family:Inter,sans-serif;font-family:var(--font-body);margin:0}h1,h2,h3,h4,h5,h6{color:#1a1a1a;font-family:Inter,sans-serif;font-family:var(--font-heading);font-weight:700}a{color:#f97316;color:var(--color-orange)}a,a:hover{text-decoration:none}.container{margin:0 auto;max-width:1200px;padding:0 2rem}.btn{border:2px solid #0000;border-radius:.375rem;border-radius:var(--border-radius-md);cursor:pointer;font-weight:600;padding:.75rem 1.5rem;transition:all .2s ease-in-out}.btn-primary{background-color:#f97316}.btn-primary:hover{background-color:#ea580c;background-color:var(--color-orange-hover);box-shadow:0 4px 12px -2px #f9731680;transform:translateY(-1px)}.btn-secondary{background-color:initial;border-color:#1c2740;color:#1c2740;color:var(--color-ink)}.btn-secondary:hover{background-color:#1c2740;background-color:var(--color-ink);color:#fafaf8;color:var(--color-off-white)}.signin-section{align-items:center;background:#fff;color:#1a1a1a;display:flex;justify-content:center;min-height:calc(100vh - 120px);padding:1.5rem 0;position:relative}.signin-container{max-width:380px}.signin-container,.signup-container{align-items:center;display:flex;flex-direction:column;margin:0 auto;padding:0 1rem;text-align:center;width:100%}.signup-container{max-width:480px}.signin-header{margin-bottom:1.5rem}.signin-header h1{color:#1a1a1a;font-size:clamp(2rem,4vw,2.75rem);font-weight:800;letter-spacing:-.02em;line-height:1.1;margin-bottom:.75rem}.signin-header p{color:#6b7280;font-size:1rem;line-height:1.5;max-width:400px}.signin-card{background:#fff;border:1px solid #e5e7eb;border-radius:1rem;box-shadow:0 10px 25px -5px #0000001a,0 4px 6px -2px #0000000d;margin-bottom:1.25rem;min-height:380px;padding:2.25rem 2rem;width:100%}.signin-form{gap:1.25rem;margin-bottom:1.25rem}.form-group,.signin-form{display:flex;flex-direction:column}.form-group{text-align:left}.form-group label{font-size:.875rem;font-weight:600}.form-group input{background:#fff;border:1px solid #d1d5db;border-radius:.5rem;color:#1f2937;font-size:1rem;padding:.75rem 1rem;transition:all .2s ease}.form-group input:focus{border-color:#f97316;box-shadow:0 0 0 3px #f973161a;outline:none}.form-group input.error{border-color:#ef4444;box-shadow:0 0 0 3px #ef44441a}.form-group input::placeholder{color:#9ca3af}.error-message{color:#ef4444;font-size:.75rem;margin-top:.25rem}.signin-forgot{margin-top:-.5rem;text-align:right}.signin-forgot a{color:#f97316;font-size:.875rem;font-weight:500;text-decoration:none;transition:all .2s ease}.signin-forgot a:hover{color:#ea580c;text-decoration:underline}.btn-signin{background:#f97316;border:none;border-radius:.5rem;box-shadow:0 2px 8px -1px #f9731666;color:#fff;cursor:pointer;font-size:1rem;font-weight:600;padding:.875rem 1.5rem;transition:all .2s ease;width:100%}.btn-signin:hover:not(:disabled){background:#ea580c;box-shadow:0 4px 12px -2px #f9731680;transform:translateY(-1px)}.btn-signin:disabled{cursor:not-allowed;opacity:.7;transform:none}.signin-divider{margin:1.25rem 0;position:relative;text-align:center}.signin-divider:before{background:#e5e7eb;content:"";height:1px;left:0;position:absolute;right:0;top:50%;z-index:1}.signin-divider span{background:#fff;color:#6b7280;font-size:.875rem;padding:0 1rem;position:relative;z-index:2}.btn-signup{background:#0000;border:1px solid #d1d5db;border-radius:.5rem;box-sizing:border-box;color:#4b5563;display:block;font-size:1rem;font-weight:600;padding:.875rem 1.5rem;text-align:center;text-decoration:none;transition:all .2s ease;width:100%}.btn-signup:hover{background:#f9fafb;border-color:#9ca3af;color:#1f2937;text-decoration:none}.signin-footer{color:#6b7280;font-size:.75rem;line-height:1.5;max-width:380px;text-align:center}.signin-footer a{color:#f97316;font-weight:500;text-decoration:none;transition:all .2s ease}.signin-footer a:hover{color:#ea580c;text-decoration:underline}@media (max-width:640px){.signin-section{padding:1rem 0}.signin-container{max-width:360px;padding:0 .75rem}.signup-container{max-width:420px;padding:0 .75rem}.signin-card{padding:1.25rem}.signin-header{margin-bottom:1.25rem}.signin-form>div[style*=grid]{gap:1.25rem!important;grid-template-columns:1fr!important}}.spinner-primitive{align-items:center;display:inline-flex;justify-content:center;position:relative}.spinner-circle{animation:spinner-spin 1s linear infinite;border-bottom-color:#0000;border-left-color:#0000;border-radius:50%;border-right-color:#0000;border-style:solid;border-top-color:initial}.spinner-sr-only{clip:rect(0,0,0,0);border:0;height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;white-space:nowrap;width:1px}.spinner-small .spinner-circle{border-width:2px;height:1rem;width:1rem}.spinner-medium .spinner-circle{border-width:2px;height:1.5rem;width:1.5rem}.spinner-large .spinner-circle{border-width:3px;height:2rem;width:2rem}.spinner-xl .spinner-circle{border-width:4px;height:3rem;width:3rem}.spinner-primary{color:var(--color-orange)}.spinner-secondary{color:var(--color-ink)}.spinner-white{color:#fff}.spinner-gray{color:#6b7280}.spinner-success{color:#10b981}.spinner-warning{color:#f59e0b}.spinner-error{color:#ef4444}@keyframes spinner-spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.spinner-pulse .spinner-circle{animation:spinner-pulse 1.5s ease-in-out infinite;background-color:currentColor;border:none;border-radius:50%}@keyframes spinner-pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.8)}}.spinner-dots{display:flex;gap:.25rem}.spinner-dots .spinner-circle{animation:none;background-color:currentColor;border:none;border-radius:50%}.spinner-dots .spinner-circle:first-child{animation:spinner-dots-bounce 1.4s ease-in-out infinite both;animation-delay:-.32s}.spinner-dots .spinner-circle:nth-child(2){animation:spinner-dots-bounce 1.4s ease-in-out infinite both;animation-delay:-.16s}.spinner-dots .spinner-circle:nth-child(3){animation:spinner-dots-bounce 1.4s ease-in-out infinite both}@keyframes spinner-dots-bounce{0%,80%,to{transform:scale(.6)}40%{transform:scale(1)}}.spinner-dots .spinner-circle:after,.spinner-dots .spinner-circle:before{background-color:currentColor;border-radius:50%;content:"";height:100%;position:absolute;width:100%}.spinner-dots .spinner-circle:before{animation:spinner-dots-bounce 1.4s ease-in-out infinite both;animation-delay:-.32s;left:-150%}.spinner-dots .spinner-circle:after{animation:spinner-dots-bounce 1.4s ease-in-out infinite both;animation-delay:0s;left:150%}.spinner-center{height:100px;width:100%}.spinner-center,.spinner-overlay{align-items:center;display:flex;justify-content:center}.spinner-overlay{background-color:#fffc;bottom:0;left:0;position:fixed;right:0;top:0;z-index:9999}.spinner-overlay-dark{background-color:#00000080}.spinner-overlay-dark .spinner-primitive{color:#fff}.spinner-inline{display:inline-flex;margin-right:.5rem;vertical-align:middle}.spinner-inline.spinner-small .spinner-circle{border-width:2px;height:.875rem;width:.875rem}@media (prefers-reduced-motion:reduce){.spinner-circle{animation:none}.spinner-pulse .spinner-circle{animation:none;opacity:.7}.spinner-dots .spinner-circle,.spinner-dots .spinner-circle:after,.spinner-dots .spinner-circle:before{animation:none}}.auth-loading{animation:authLoadingFadeIn .3s ease-out;background:linear-gradient(135deg,#fff,#f8fafc);bottom:0;left:0;position:fixed;right:0;top:0;z-index:9999}.auth-loading,.auth-loading-content{align-items:center;display:flex;justify-content:center}.auth-loading-content{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fffc;border:1px solid #e5e7ebcc;border-radius:1rem;box-shadow:0 10px 25px -5px #0000001a,0 4px 6px -2px #0000000d;flex-direction:column;max-width:400px;padding:2rem;text-align:center}.auth-loading-logo{animation:authLoadingLogoFloat 2s ease-in-out infinite;margin-bottom:2rem}.auth-loading-logo,.auth-loading-logo .logo-icon{align-items:center;display:flex;justify-content:center}.auth-loading-logo .logo-icon{background:linear-gradient(135deg,#1a1a1a,#374151);border-radius:50%;box-shadow:0 4px 12px #00000026;height:48px;margin-right:.75rem;overflow:hidden;position:relative;width:48px}.auth-loading-logo .logo-icon:before{background:linear-gradient(135deg,#374151,#4b5563);border-radius:50%;bottom:0;content:"";left:0;opacity:0;position:absolute;right:0;top:0;transition:opacity .3s ease}.auth-loading-logo:hover .logo-icon:before{opacity:1}.auth-loading-logo .logo-icon svg{animation:authLoadingIconPulse 2s ease-in-out infinite;color:#fff;font-size:24px}.auth-loading-logo .logo-text{color:#1a1a1a;font-size:1.25rem;font-weight:700;letter-spacing:-.025em;margin:0}.auth-loading-spinner{animation:authLoadingSpinnerRotate 2s linear infinite;margin-bottom:1.5rem}.auth-loading-text{margin-bottom:2rem}.auth-loading-text h2{color:#1a1a1a;font-size:1.5rem;font-weight:600;line-height:1.2;margin-bottom:.5rem}.auth-loading-text p{color:#6b7280;font-size:.875rem;line-height:1.5;margin:0}.auth-loading-progress{max-width:200px;width:100%}.progress-bar{background-color:#e5e7eb;height:3px;overflow:hidden}.progress-bar,.progress-fill{border-radius:2px;position:relative;width:100%}.progress-fill{animation:authLoadingProgress 2s ease-in-out infinite;background:linear-gradient(90deg,#f97316,#ea580c);height:100%}.progress-fill:after{animation:authLoadingProgressShine 1.5s ease-in-out infinite;background:linear-gradient(90deg,#0000,#fff6,#0000);bottom:0;content:"";left:0;position:absolute;right:0;top:0}@keyframes authLoadingFadeIn{0%{opacity:0}to{opacity:1}}@keyframes authLoadingLogoFloat{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}@keyframes authLoadingIconPulse{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}@keyframes authLoadingSpinnerRotate{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}@keyframes authLoadingProgress{0%{width:0}50%{width:100%}to{width:0}}@keyframes authLoadingProgressShine{0%{left:-100%}to{left:100%}}@media (max-width:640px){.auth-loading-content{margin:1rem;max-width:none;padding:1.5rem}.auth-loading-logo{margin-bottom:1.5rem}.auth-loading-logo .logo-icon{height:40px;margin-right:.5rem;width:40px}.auth-loading-logo .logo-icon svg{font-size:20px}.auth-loading-logo .logo-text{font-size:1.1rem}.auth-loading-text h2{font-size:1.25rem}.auth-loading-text p{font-size:.8rem}}@media (prefers-reduced-motion:reduce){.auth-loading-logo,.auth-loading-spinner,.progress-fill,.progress-fill:after{animation:none}.auth-loading-logo,.auth-loading-logo .logo-icon svg{transform:none}}@media (prefers-color-scheme:dark){.auth-loading{background:linear-gradient(135deg,#1f2937,#111827)}.auth-loading-content{background:#1f2937cc;border-color:#4b5563cc}.auth-loading-logo .logo-text,.auth-loading-text h2{color:#f9fafb}.auth-loading-text p{color:#9ca3af}.progress-bar{background-color:#374151}}:root{--toastify-color-light:#fff;--toastify-color-dark:#121212;--toastify-color-info:#3498db;--toastify-color-success:#07bc0c;--toastify-color-warning:#f1c40f;--toastify-color-error:#e74d3c;--toastify-color-transparent:#ffffffb3;--toastify-icon-color-info:var(--toastify-color-info);--toastify-icon-color-success:var(--toastify-color-success);--toastify-icon-color-warning:var(--toastify-color-warning);--toastify-icon-color-error:var(--toastify-color-error);--toastify-container-width:fit-content;--toastify-toast-width:320px;--toastify-toast-offset:16px;--toastify-toast-top:max(var(--toastify-toast-offset),env(safe-area-inset-top));--toastify-toast-right:max(var(--toastify-toast-offset),env(safe-area-inset-right));--toastify-toast-left:max(var(--toastify-toast-offset),env(safe-area-inset-left));--toastify-toast-bottom:max(var(--toastify-toast-offset),env(safe-area-inset-bottom));--toastify-toast-background:#fff;--toastify-toast-padding:14px;--toastify-toast-min-height:64px;--toastify-toast-max-height:800px;--toastify-toast-bd-radius:6px;--toastify-toast-shadow:0px 4px 12px #0000001a;--toastify-font-family:sans-serif;--toastify-z-index:9999;--toastify-text-color-light:#757575;--toastify-text-color-dark:#fff;--toastify-text-color-info:#fff;--toastify-text-color-success:#fff;--toastify-text-color-warning:#fff;--toastify-text-color-error:#fff;--toastify-spinner-color:#616161;--toastify-spinner-color-empty-area:#e0e0e0;--toastify-color-progress-light:linear-gradient(90deg,#4cd964,#5ac8fa,#007aff,#34aadc,#5856d6,#ff2d55);--toastify-color-progress-dark:#bb86fc;--toastify-color-progress-info:var(--toastify-color-info);--toastify-color-progress-success:var(--toastify-color-success);--toastify-color-progress-warning:var(--toastify-color-warning);--toastify-color-progress-error:var(--toastify-color-error);--toastify-color-progress-bgo:0.2}.Toastify__toast-container{box-sizing:border-box;color:#fff;display:flex;flex-direction:column;position:fixed;-webkit-transform:translateZ(9999);-webkit-transform:translateZ(var(--toastify-z-index));width:-webkit-fit-content;width:fit-content;width:var(--toastify-container-width);z-index:9999;z-index:var(--toastify-z-index)}.Toastify__toast-container--top-left{left:max(16px,env(safe-area-inset-left));left:var(--toastify-toast-left);top:max(16px,env(safe-area-inset-top));top:var(--toastify-toast-top)}.Toastify__toast-container--top-center{align-items:center;left:50%;top:max(16px,env(safe-area-inset-top));top:var(--toastify-toast-top);transform:translateX(-50%)}.Toastify__toast-container--top-right{align-items:end;right:max(16px,env(safe-area-inset-right));right:var(--toastify-toast-right);top:max(16px,env(safe-area-inset-top));top:var(--toastify-toast-top)}.Toastify__toast-container--bottom-left{bottom:max(16px,env(safe-area-inset-bottom));bottom:var(--toastify-toast-bottom);left:max(16px,env(safe-area-inset-left));left:var(--toastify-toast-left)}.Toastify__toast-container--bottom-center{align-items:center;bottom:max(16px,env(safe-area-inset-bottom));bottom:var(--toastify-toast-bottom);left:50%;transform:translateX(-50%)}.Toastify__toast-container--bottom-right{align-items:end;bottom:max(16px,env(safe-area-inset-bottom));bottom:var(--toastify-toast-bottom);right:max(16px,env(safe-area-inset-right));right:var(--toastify-toast-right)}.Toastify__toast{--y:0;align-items:center;border-radius:6px;border-radius:var(--toastify-toast-bd-radius);box-shadow:0 4px 12px #0000001a;box-shadow:var(--toastify-toast-shadow);box-sizing:border-box;display:flex;flex:1 1 auto;font-family:sans-serif;font-family:var(--toastify-font-family);margin-bottom:1rem;max-height:800px;max-height:var(--toastify-toast-max-height);min-height:64px;min-height:var(--toastify-toast-min-height);padding:14px;padding:var(--toastify-toast-padding);position:relative;touch-action:none;width:320px;width:var(--toastify-toast-width);word-break:break-word;z-index:0}@media only screen and (max-width:480px){.Toastify__toast-container{left:env(safe-area-inset-left);margin:0;width:100vw}.Toastify__toast-container--top-center,.Toastify__toast-container--top-left,.Toastify__toast-container--top-right{top:env(safe-area-inset-top);transform:translateX(0)}.Toastify__toast-container--bottom-center,.Toastify__toast-container--bottom-left,.Toastify__toast-container--bottom-right{bottom:env(safe-area-inset-bottom);transform:translateX(0)}.Toastify__toast-container--rtl{left:auto;right:env(safe-area-inset-right)}.Toastify__toast{--toastify-toast-width:100%;border-radius:0;margin-bottom:0}}.Toastify__toast-container[data-stacked=true]{width:320px;width:var(--toastify-toast-width)}.Toastify__toast--stacked{position:absolute;transform:translate3d(0,var(--y),0) scale(var(--s));transition:transform .3s;width:100%}.Toastify__toast--stacked[data-collapsed] .Toastify__close-button,.Toastify__toast--stacked[data-collapsed] .Toastify__toast-body{transition:opacity .1s}.Toastify__toast--stacked[data-collapsed=false]{overflow:visible}.Toastify__toast--stacked[data-collapsed=true]:not(:last-child)>*{opacity:0}.Toastify__toast--stacked:after{bottom:100%;content:"";height:calc(var(--g)*1px);left:0;position:absolute;right:0}.Toastify__toast--stacked[data-pos=top]{top:0}.Toastify__toast--stacked[data-pos=bot]{bottom:0}.Toastify__toast--stacked[data-pos=bot].Toastify__toast--stacked:before{transform-origin:top}.Toastify__toast--stacked[data-pos=top].Toastify__toast--stacked:before{transform-origin:bottom}.Toastify__toast--stacked:before{bottom:0;content:"";height:100%;left:0;position:absolute;right:0;transform:scaleY(3);z-index:-1}.Toastify__toast--rtl{direction:rtl}.Toastify__toast--close-on-click{cursor:pointer}.Toastify__toast-icon{-webkit-margin-end:10px;display:flex;flex-shrink:0;margin-inline-end:10px;width:22px}.Toastify--animate{animation-duration:.5s;animation-fill-mode:both}.Toastify--animate-icon{animation-duration:.3s;animation-fill-mode:both}.Toastify__toast-theme--dark{background:#121212;background:var(--toastify-color-dark);color:#fff;color:var(--toastify-text-color-dark)}.Toastify__toast-theme--colored.Toastify__toast--default,.Toastify__toast-theme--light{background:#fff;background:var(--toastify-color-light);color:#757575;color:var(--toastify-text-color-light)}.Toastify__toast-theme--colored.Toastify__toast--info{background:#3498db;background:var(--toastify-color-info);color:#fff;color:var(--toastify-text-color-info)}.Toastify__toast-theme--colored.Toastify__toast--success{background:#07bc0c;background:var(--toastify-color-success);color:#fff;color:var(--toastify-text-color-success)}.Toastify__toast-theme--colored.Toastify__toast--warning{background:#f1c40f;background:var(--toastify-color-warning);color:#fff;color:var(--toastify-text-color-warning)}.Toastify__toast-theme--colored.Toastify__toast--error{background:#e74d3c;background:var(--toastify-color-error);color:#fff;color:var(--toastify-text-color-error)}.Toastify__progress-bar-theme--light{background:linear-gradient(90deg,#4cd964,#5ac8fa,#007aff,#34aadc,#5856d6,#ff2d55);background:var(--toastify-color-progress-light)}.Toastify__progress-bar-theme--dark{background:#bb86fc;background:var(--toastify-color-progress-dark)}.Toastify__progress-bar--info{background:#3498db;background:var(--toastify-color-progress-info)}.Toastify__progress-bar--success{background:#07bc0c;background:var(--toastify-color-progress-success)}.Toastify__progress-bar--warning{background:#f1c40f;background:var(--toastify-color-progress-warning)}.Toastify__progress-bar--error{background:#e74d3c;background:var(--toastify-color-progress-error)}.Toastify__progress-bar-theme--colored.Toastify__progress-bar--error,.Toastify__progress-bar-theme--colored.Toastify__progress-bar--info,.Toastify__progress-bar-theme--colored.Toastify__progress-bar--success,.Toastify__progress-bar-theme--colored.Toastify__progress-bar--warning{background:#ffffffb3;background:var(--toastify-color-transparent)}.Toastify__close-button{background:#0000;border:none;color:#fff;cursor:pointer;opacity:.7;outline:none;padding:0;position:absolute;right:6px;top:6px;transition:.3s ease;z-index:1}.Toastify__toast--rtl .Toastify__close-button{left:6px;right:auto}.Toastify__close-button--light{color:#000;opacity:.3}.Toastify__close-button>svg{fill:currentColor;height:16px;width:14px}.Toastify__close-button:focus,.Toastify__close-button:hover{opacity:1}@keyframes Toastify__trackProgress{0%{transform:scaleX(1)}to{transform:scaleX(0)}}.Toastify__progress-bar{bottom:0;height:100%;left:0;opacity:.7;position:absolute;transform-origin:left;width:100%;z-index:1}.Toastify__progress-bar--animated{animation:Toastify__trackProgress linear 1 forwards}.Toastify__progress-bar--controlled{transition:transform .2s}.Toastify__progress-bar--rtl{border-bottom-left-radius:0;left:auto;right:0;transform-origin:right}.Toastify__progress-bar--wrp{border-bottom-left-radius:6px;border-bottom-left-radius:var(--toastify-toast-bd-radius);border-bottom-right-radius:6px;border-bottom-right-radius:var(--toastify-toast-bd-radius);bottom:0;height:5px;left:0;overflow:hidden;position:absolute;width:100%}.Toastify__progress-bar--wrp[data-hidden=true]{opacity:0}.Toastify__progress-bar--bg{height:100%;opacity:.2;opacity:var(--toastify-color-progress-bgo);width:100%}.Toastify__spinner{animation:Toastify__spin .65s linear infinite;border:2px solid #e0e0e0;border-color:var(--toastify-spinner-color-empty-area);border-radius:100%;border-right-color:#616161;border-right-color:var(--toastify-spinner-color);box-sizing:border-box;height:20px;width:20px}@keyframes Toastify__bounceInRight{0%,60%,75%,90%,to{animation-timing-function:cubic-bezier(.215,.61,.355,1)}0%{opacity:0;transform:translate3d(3000px,0,0)}60%{opacity:1;transform:translate3d(-25px,0,0)}75%{transform:translate3d(10px,0,0)}90%{transform:translate3d(-5px,0,0)}to{transform:none}}@keyframes Toastify__bounceOutRight{20%{opacity:1;transform:translate3d(-20px,var(--y),0)}to{opacity:0;transform:translate3d(2000px,var(--y),0)}}@keyframes Toastify__bounceInLeft{0%,60%,75%,90%,to{animation-timing-function:cubic-bezier(.215,.61,.355,1)}0%{opacity:0;transform:translate3d(-3000px,0,0)}60%{opacity:1;transform:translate3d(25px,0,0)}75%{transform:translate3d(-10px,0,0)}90%{transform:translate3d(5px,0,0)}to{transform:none}}@keyframes Toastify__bounceOutLeft{20%{opacity:1;transform:translate3d(20px,var(--y),0)}to{opacity:0;transform:translate3d(-2000px,var(--y),0)}}@keyframes Toastify__bounceInUp{0%,60%,75%,90%,to{animation-timing-function:cubic-bezier(.215,.61,.355,1)}0%{opacity:0;transform:translate3d(0,3000px,0)}60%{opacity:1;transform:translate3d(0,-20px,0)}75%{transform:translate3d(0,10px,0)}90%{transform:translate3d(0,-5px,0)}to{transform:translateZ(0)}}@keyframes Toastify__bounceOutUp{20%{transform:translate3d(0,calc(var(--y) - 10px),0)}40%,45%{opacity:1;transform:translate3d(0,calc(var(--y) + 20px),0)}to{opacity:0;transform:translate3d(0,-2000px,0)}}@keyframes Toastify__bounceInDown{0%,60%,75%,90%,to{animation-timing-function:cubic-bezier(.215,.61,.355,1)}0%{opacity:0;transform:translate3d(0,-3000px,0)}60%{opacity:1;transform:translate3d(0,25px,0)}75%{transform:translate3d(0,-10px,0)}90%{transform:translate3d(0,5px,0)}to{transform:none}}@keyframes Toastify__bounceOutDown{20%{transform:translate3d(0,calc(var(--y) - 10px),0)}40%,45%{opacity:1;transform:translate3d(0,calc(var(--y) + 20px),0)}to{opacity:0;transform:translate3d(0,2000px,0)}}.Toastify__bounce-enter--bottom-left,.Toastify__bounce-enter--top-left{animation-name:Toastify__bounceInLeft}.Toastify__bounce-enter--bottom-right,.Toastify__bounce-enter--top-right{animation-name:Toastify__bounceInRight}.Toastify__bounce-enter--top-center{animation-name:Toastify__bounceInDown}.Toastify__bounce-enter--bottom-center{animation-name:Toastify__bounceInUp}.Toastify__bounce-exit--bottom-left,.Toastify__bounce-exit--top-left{animation-name:Toastify__bounceOutLeft}.Toastify__bounce-exit--bottom-right,.Toastify__bounce-exit--top-right{animation-name:Toastify__bounceOutRight}.Toastify__bounce-exit--top-center{animation-name:Toastify__bounceOutUp}.Toastify__bounce-exit--bottom-center{animation-name:Toastify__bounceOutDown}@keyframes Toastify__zoomIn{0%{opacity:0;transform:scale3d(.3,.3,.3)}50%{opacity:1}}@keyframes Toastify__zoomOut{0%{opacity:1}50%{opacity:0;transform:translate3d(0,var(--y),0) scale3d(.3,.3,.3)}to{opacity:0}}.Toastify__zoom-enter{animation-name:Toastify__zoomIn}.Toastify__zoom-exit{animation-name:Toastify__zoomOut}@keyframes Toastify__flipIn{0%{animation-timing-function:ease-in;opacity:0;transform:perspective(400px) rotateX(90deg)}40%{animation-timing-function:ease-in;transform:perspective(400px) rotateX(-20deg)}60%{opacity:1;transform:perspective(400px) rotateX(10deg)}80%{transform:perspective(400px) rotateX(-5deg)}to{transform:perspective(400px)}}@keyframes Toastify__flipOut{0%{transform:translate3d(0,var(--y),0) perspective(400px)}30%{opacity:1;transform:translate3d(0,var(--y),0) perspective(400px) rotateX(-20deg)}to{opacity:0;transform:translate3d(0,var(--y),0) perspective(400px) rotateX(90deg)}}.Toastify__flip-enter{animation-name:Toastify__flipIn}.Toastify__flip-exit{animation-name:Toastify__flipOut}@keyframes Toastify__slideInRight{0%{transform:translate3d(110%,0,0);visibility:visible}to{transform:translate3d(0,var(--y),0)}}@keyframes Toastify__slideInLeft{0%{transform:translate3d(-110%,0,0);visibility:visible}to{transform:translate3d(0,var(--y),0)}}@keyframes Toastify__slideInUp{0%{transform:translate3d(0,110%,0);visibility:visible}to{transform:translate3d(0,var(--y),0)}}@keyframes Toastify__slideInDown{0%{transform:translate3d(0,-110%,0);visibility:visible}to{transform:translate3d(0,var(--y),0)}}@keyframes Toastify__slideOutRight{0%{transform:translate3d(0,var(--y),0)}to{transform:translate3d(110%,var(--y),0);visibility:hidden}}@keyframes Toastify__slideOutLeft{0%{transform:translate3d(0,var(--y),0)}to{transform:translate3d(-110%,var(--y),0);visibility:hidden}}@keyframes Toastify__slideOutDown{0%{transform:translate3d(0,var(--y),0)}to{transform:translate3d(0,500px,0);visibility:hidden}}@keyframes Toastify__slideOutUp{0%{transform:translate3d(0,var(--y),0)}to{transform:translate3d(0,-500px,0);visibility:hidden}}.Toastify__slide-enter--bottom-left,.Toastify__slide-enter--top-left{animation-name:Toastify__slideInLeft}.Toastify__slide-enter--bottom-right,.Toastify__slide-enter--top-right{animation-name:Toastify__slideInRight}.Toastify__slide-enter--top-center{animation-name:Toastify__slideInDown}.Toastify__slide-enter--bottom-center{animation-name:Toastify__slideInUp}.Toastify__slide-exit--bottom-left,.Toastify__slide-exit--top-left{animation-duration:.3s;animation-name:Toastify__slideOutLeft;animation-timing-function:ease-in}.Toastify__slide-exit--bottom-right,.Toastify__slide-exit--top-right{animation-duration:.3s;animation-name:Toastify__slideOutRight;animation-timing-function:ease-in}.Toastify__slide-exit--top-center{animation-duration:.3s;animation-name:Toastify__slideOutUp;animation-timing-function:ease-in}.Toastify__slide-exit--bottom-center{animation-duration:.3s;animation-name:Toastify__slideOutDown;animation-timing-function:ease-in}@keyframes Toastify__spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.hero-section{background:#fff;color:#1a1a1a;padding:clamp(2rem,4vw,3rem) 0 5rem;position:relative}.hero-section:after{display:none}.hero-container{align-items:center;display:flex;flex-direction:column;gap:3.5rem;margin:0 auto;max-width:100%;padding:0 1rem;text-align:center}.hero-title{word-wrap:break-word;color:#1a1a1a;font-size:clamp(2.5rem,6vw,4.5rem);font-weight:800;letter-spacing:-.02em;line-height:1.05;overflow:visible;white-space:normal;width:100%}.hero-tagline{color:#6b7280;font-size:clamp(.95rem,1.5vw,1.1rem);line-height:1.5;margin:1.2rem auto 2.5rem;max-width:600px}.hero-buttons{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center;margin-bottom:2.25rem}.hero-buttons .btn-primary{background:#f97316;border:none;border-radius:.75rem;box-shadow:0 2px 8px -1px #f9731666;color:#fff;display:inline-block;font-size:1.1rem;font-weight:600;padding:1.2rem 2.5rem;text-decoration:none;transition:all .2s ease}.hero-buttons .btn-primary:hover{background:#ea580c;box-shadow:0 4px 12px -2px #f9731680;text-decoration:none!important;transform:translateY(-1px)}.hero-buttons .btn-secondary{background:#4b5563;border:none;border-radius:.75rem;box-shadow:0 2px 8px -1px #4b556366;color:#fff;cursor:pointer;display:inline-block;font-size:1.1rem;font-weight:600;padding:1.2rem 2.5rem;text-decoration:none;transition:all .2s ease}.hero-buttons .btn-secondary:hover{background:#374151;box-shadow:0 4px 12px -2px #4b556380;transform:translateY(-1px)}.hero-buttons .btn-secondary.btn-outline{background:#0000;border:1px solid #d1d5db;border-radius:.75rem;color:#4b5563;display:inline-block;font-weight:600;padding:.95rem 1.4rem;text-decoration:none!important;transition:all .2s ease}.hero-buttons .btn-secondary.btn-outline:hover{background:#f9fafb;border-color:#9ca3af;color:#1f2937;text-decoration:none!important}.subject-badges{display:flex;flex-wrap:wrap;gap:.85rem;justify-content:center;margin:0 auto;max-width:760px}.badge{background:#f3f4f6;border:1px solid #e5e7eb;border-radius:2rem;color:#4b5563;font-size:.8rem;font-weight:600;letter-spacing:.5px;padding:.55rem 1.05rem;text-transform:uppercase;transition:all .2s ease}.badge:hover{background:#e5e7eb;border-color:#d1d5db;color:#374151}.hero-mockup-wrapper{align-items:center;display:flex;flex-direction:column;gap:1.5rem;max-width:880px;width:100%}.video-section-title{color:#000;font-size:2.5rem;font-weight:600;margin-bottom:1rem;text-align:center}.hero-mockup{align-items:center;animation:fadeUp .9s ease .05s both;aspect-ratio:16/9;background:#fff;border:1px solid #e5e7eb;border-radius:1.5rem;box-shadow:0 20px 40px -10px #0000001a,0 4px 12px -2px #0000000d;display:flex;justify-content:center;overflow:hidden;position:relative;width:100%}.watch-demo-container{text-align:center}.hero-mockup:after,.hero-mockup:before{display:none}.mockup-image{box-shadow:0 4px 12px -2px #0000001a;object-fit:cover}.mockup-image,.video-placeholder{border-radius:1rem;height:100%;width:100%}.video-placeholder{align-items:center;background-color:#f3f4f6;color:#9ca3af;display:flex;font-size:1.2rem;justify-content:center}@keyframes float{0%,to{transform:translateY(8px)}50%{transform:translateY(-8px)}}@keyframes fadeUp{0%{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}@media (max-width:900px){.hero-container{gap:3rem;padding:0 .5rem}.hero-mockup{border-radius:1.75rem}.hero-title{word-wrap:break-word;font-size:clamp(2rem,8vw,3.5rem);white-space:normal}}@media (max-width:768px){.hero-buttons{flex-direction:column;margin-left:auto;margin-right:auto;max-width:400px;width:100%}.hero-buttons .btn-primary,.hero-buttons .btn-secondary{font-size:1rem;padding:1rem 2rem;width:100%}.video-section-title{font-size:2rem}}@media (max-width:640px){.hero-section{padding:2rem 0 3.5rem}.hero-container{padding:0 .75rem}.hero-buttons{margin-bottom:2rem;max-width:100%}.hero-mockup{aspect-ratio:4/3;border-radius:1.4rem}.hero-tagline{font-size:.95rem;margin:1.2rem auto 2.2rem}.badge{font-size:.72rem;padding:.45rem .9rem}.hero-title{font-size:clamp(1.8rem,10vw,3rem);white-space:normal;word-break:break-word}.video-section-title{font-size:1.75rem}.hero-buttons .btn-primary,.hero-buttons .btn-secondary{font-size:.95rem;padding:.9rem 1.75rem}}@media (max-width:480px){.hero-section{padding:1.5rem 0 3rem}.hero-container{padding:0 1rem}.hero-title{font-size:clamp(1.5rem,9vw,2.5rem)}.hero-tagline{font-size:.9rem}.video-section-title{font-size:1.5rem}}.video-slideshow-wrapper{display:flex;flex-direction:column;gap:1.5rem;width:100%}.video-slideshow-container{background:#000;border-radius:1rem;box-shadow:0 10px 40px #00000026;height:500px;overflow:hidden;position:relative;width:100%}.video-slides-wrapper{display:flex;height:100%;transition:transform .5s ease-in-out;width:100%}.video-card{flex:0 0 100%}.video-card,.video-wrapper{height:100%;position:relative;width:100%}.video-wrapper{background:#000;cursor:pointer}.video-wrapper video{display:block;height:100%;object-fit:cover;width:100%}.video-overlay{align-items:center;background:linear-gradient(180deg,#0000004d,#0009);color:#fff;display:flex;flex-direction:column;height:100%;justify-content:center;left:0;opacity:1;position:absolute;text-align:center;top:0;transition:opacity .3s ease;width:100%}.video-overlay.playing{opacity:0;pointer-events:none}.video-overlay h3{color:#f97316;font-size:2rem;font-weight:700;margin:0}.watch-demo-container{width:100%}.btn-play,.watch-demo-container{align-items:center;display:flex;justify-content:center}.btn-play{background:#f97316;border:none;border-radius:.5rem;box-shadow:0 4px 12px #f9731666;color:#fff;cursor:pointer;font-size:1.1rem;font-weight:600;gap:.5rem;min-width:180px;padding:1rem 2.5rem;transition:all .3s ease}.btn-play:hover{background:#ea580c;box-shadow:0 6px 16px #f9731680;transform:translateY(-2px)}.btn-play:active{transform:translateY(0)}.btn-play svg{flex-shrink:0}.slideshow-nav{bottom:2rem;gap:1rem;left:50%;position:absolute;transform:translateX(-50%);z-index:10}.nav-button,.slideshow-nav{align-items:center;display:flex}.nav-button{background:#ffffffe6;border:none;border-radius:50%;box-shadow:0 2px 8px #0003;cursor:pointer;height:40px;justify-content:center;transition:all .3s ease;width:40px}.nav-button:hover{background:#fff;transform:scale(1.1)}.nav-button:disabled{cursor:not-allowed;opacity:.5}.nav-button svg{fill:#1f2937;height:20px;width:20px}.slide-indicators{display:flex;gap:.5rem}.indicator{background:#ffffff80;border-radius:50%;cursor:pointer;height:10px;transition:all .3s ease;width:10px}.indicator.active{background:#f97316;border-radius:5px;width:30px}@media (max-width:768px){.video-slideshow-wrapper{gap:1rem}.video-slideshow-container{height:400px}.video-overlay h3{font-size:1.5rem}.btn-play{font-size:1rem;min-width:150px;padding:.8rem 1.5rem}.nav-button{height:35px;width:35px}.slideshow-nav{bottom:1.5rem}}@media (max-width:480px){.video-slideshow-container{border-radius:.75rem;height:300px}.video-overlay h3{font-size:1.25rem}}.how-it-works-section{background-color:var(--color-off-white);padding:6rem 2rem}.how-it-works-container{margin:0 auto;max-width:1200px;text-align:center}.how-it-works-container h2{font-size:2.5rem;margin-bottom:1rem}.how-it-works-container>p{color:var(--color-ink);font-size:1.125rem;margin:0 auto 4rem;max-width:600px}.steps-container{grid-gap:2rem;display:grid;gap:2rem;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));margin-bottom:4rem}.step{background-color:#fff;border-radius:var(--border-radius-lg);box-shadow:var(--shadow-sm);padding:2rem;text-align:left}.step-number{color:var(--color-orange);font-size:1.5rem;font-weight:700;margin-bottom:1rem}.step h3{font-size:1.5rem;margin-bottom:.5rem}.cta-row{align-items:center;display:flex;gap:1rem;justify-content:center}@media (max-width:768px){.how-it-works-section{padding:4rem 1rem}.how-it-works-container h2{font-size:2rem;margin-bottom:.75rem}.how-it-works-container>p{font-size:1rem;margin:0 auto 2.5rem}.steps-container{gap:1.5rem;grid-template-columns:1fr;margin-bottom:2.5rem}.step{padding:1.5rem}.step h3,.step-number{font-size:1.25rem}.cta-row{flex-direction:column;gap:.75rem}.cta-row .btn{max-width:300px;width:100%}}@media (max-width:480px){.how-it-works-section{padding:3rem 1rem}.how-it-works-container h2{font-size:1.75rem}.step{padding:1.25rem}}.feature-cards-section{background-color:#f8f9fa;padding:6rem 2rem}.feature-cards-container{margin:0 auto;max-width:1200px;text-align:center}.feature-cards-container h2{font-size:2.5rem;margin-bottom:4rem}.cards-grid{grid-gap:2rem;display:grid;gap:2rem;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.feature-card{background-color:#fff;border-radius:var(--border-radius-lg);box-shadow:var(--shadow-sm);color:inherit;padding:2.5rem 2rem;text-align:left;text-decoration:none!important;transition:transform .2s ease-in-out,box-shadow .2s ease-in-out}.feature-card:hover{box-shadow:var(--shadow-md);text-decoration:none!important;transform:translateY(-8px)}.card-icon{color:var(--color-orange);font-size:2.5rem;margin-bottom:1.5rem}.feature-card h3{font-size:1.5rem;margin-bottom:.75rem}.feature-card p{line-height:1.6}@media (max-width:768px){.feature-cards-section{padding:4rem 1rem}.feature-cards-container h2{font-size:2rem;margin-bottom:2.5rem}.cards-grid{gap:1.5rem;grid-template-columns:1fr}.feature-card{padding:2rem 1.5rem}.card-icon{font-size:2rem;margin-bottom:1rem}.feature-card h3{font-size:1.25rem}.feature-card p{font-size:.95rem}}@media (max-width:480px){.feature-cards-section{padding:3rem 1rem}.feature-cards-container h2{font-size:1.75rem;margin-bottom:2rem}.feature-card{padding:1.5rem 1.25rem}}.testimonials-section{background-color:var(--color-off-white);padding:6rem 2rem}.testimonials-container{margin:0 auto;max-width:1000px;text-align:center}.testimonials-container h2{font-size:2.5rem;margin-bottom:4rem}.testimonial-card{background-color:#fff;border-radius:var(--border-radius-lg);box-shadow:var(--shadow-sm);padding:2.5rem;position:relative}.testimonial-card:before{color:var(--color-orange);content:"\201C";font-size:5rem;left:1.5rem;line-height:1;opacity:.2;position:absolute;top:1rem}.testimonial-text{color:var(--color-ink);font-size:1.25rem;font-style:italic;line-height:1.6;margin-bottom:1.5rem}.testimonial-author{color:var(--color-deep-navy);font-weight:700}.testimonial-author span{color:var(--color-ink);display:block;font-weight:400}@media (max-width:768px){.testimonials-section{padding:4rem 1rem}.testimonials-container h2{font-size:2rem;margin-bottom:2.5rem}.testimonial-card{padding:2rem 1.5rem}.testimonial-card:before{font-size:4rem;left:1rem;top:.75rem}.testimonial-text{font-size:1.1rem;margin-bottom:1.25rem}.testimonial-author{font-size:.95rem}}@media (max-width:480px){.testimonials-section{padding:3rem 1rem}.testimonials-container h2{font-size:1.75rem;margin-bottom:2rem}.testimonial-card{padding:1.5rem 1.25rem}.testimonial-card:before{font-size:3rem}.testimonial-text{font-size:1rem}}.cta-banner-section{background-color:var(--color-deep-navy);margin-top:4rem;padding:5rem 2rem}.cta-banner-container{color:var(--color-off-white);margin:0 auto;max-width:800px;text-align:center}.cta-banner-container h2{color:var(--color-off-white);font-size:2.5rem;margin-bottom:1.5rem}.cta-banner-container p{color:var(--color-cool-gray);font-size:1.125rem;margin-bottom:2rem}@media (max-width:768px){.cta-banner-section{margin-top:3rem;padding:4rem 1rem}.cta-banner-container h2{font-size:2rem;margin-bottom:1.25rem}.cta-banner-container p{font-size:1rem;margin-bottom:1.5rem}}@media (max-width:480px){.cta-banner-section{margin-top:2rem;padding:3rem 1rem}.cta-banner-container h2{font-size:1.75rem}.cta-banner-container p{font-size:.95rem}}.btn-primitive{align-items:center;border:2px solid #0000;border-radius:var(--border-radius-md);cursor:pointer;display:inline-flex;font-family:var(--font-body);font-weight:600;gap:.5rem;justify-content:center;overflow:hidden;position:relative;text-decoration:none;transition:all .2s ease-in-out;-webkit-user-select:none;user-select:none;white-space:nowrap}.btn-primitive:focus{box-shadow:0 0 0 3px #f973164d;outline:none}.btn-small{font-size:.875rem;line-height:1.25rem;padding:.5rem 1rem}.btn-medium{font-size:1rem;line-height:1.5rem;padding:.75rem 1.5rem}.btn-large{font-size:1.125rem;line-height:1.75rem;padding:1rem 2rem}.btn-primary{background-color:var(--color-orange);border-color:var(--color-orange);box-shadow:0 2px 8px -1px #f9731666}.btn-primary:hover:not(.btn-disabled){background-color:var(--color-orange-hover);border-color:var(--color-orange-hover);box-shadow:0 4px 12px -2px #f9731680;transform:translateY(-1px)}.btn-primary:active:not(.btn-disabled){box-shadow:0 2px 4px -1px #f9731666;transform:translateY(0)}.btn-secondary{background-color:var(--color-ink);border-color:var(--color-ink);box-shadow:var(--shadow-sm);color:var(--color-off-white)}.btn-secondary:hover:not(.btn-disabled){background-color:var(--color-deep-navy);border-color:var(--color-deep-navy);box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn-secondary:active:not(.btn-disabled){box-shadow:var(--shadow-sm);transform:translateY(0)}.btn-outline{background-color:initial;border-color:var(--color-cool-gray);color:var(--color-ink)}.btn-outline:hover:not(.btn-disabled){background-color:var(--color-off-white);border-color:var(--color-ink);color:var(--color-deep-navy)}.btn-outline:active:not(.btn-disabled){background-color:var(--color-cool-gray)}.btn-ghost{background-color:initial;border-color:#0000;color:var(--color-ink)}.btn-ghost:hover:not(.btn-disabled){background-color:var(--color-off-white);color:var(--color-deep-navy)}.btn-ghost:active:not(.btn-disabled){background-color:var(--color-cool-gray)}.btn-disabled{box-shadow:none!important;cursor:not-allowed;opacity:.6;transform:none!important}.btn-icon{align-items:center;display:flex;justify-content:center}.btn-icon svg{height:1em;width:1em}.btn-with-icon.btn-small .btn-icon{font-size:1rem}.btn-with-icon.btn-medium .btn-icon{font-size:1.125rem}.btn-with-icon.btn-large .btn-icon{font-size:1.25rem}.btn-full-width{width:100%}.btn-loading{color:#0000;position:relative}.btn-loading:after{animation:btn-spin 1s linear infinite;border:2px solid #0000;border-radius:50%;border-top-color:initial;content:"";height:1rem;left:50%;position:absolute;top:50%;transform:translate(-50%,-50%);width:1rem}@keyframes btn-spin{to{transform:translate(-50%,-50%) rotate(1turn)}}@media (max-width:640px){.btn-large{font-size:1rem;padding:.875rem 1.75rem}.btn-medium{font-size:.9375rem;padding:.625rem 1.25rem}.btn-small{font-size:.8125rem;padding:.4375rem .875rem}}.card-primitive{background-color:#fff;border:1px solid #f3f4f6;border-radius:var(--border-radius-lg);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;overflow:hidden;transition:all .2s ease-in-out}.card-primitive:hover{box-shadow:var(--shadow-md)}.card-elevated{box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f}.card-elevated:hover{box-shadow:0 10px 15px -3px #0000001a,0 4px 6px -2px #0000000d;transform:translateY(-2px)}.card-flat{border:2px solid #e5e7eb;box-shadow:none}.card-flat:hover{border-color:var(--color-cool-gray);box-shadow:var(--shadow-sm)}.card-outlined{background-color:#f9731605;border:2px solid var(--color-orange);box-shadow:none}.card-success{background-color:#10b98105;border-left:4px solid #10b981}.card-warning{background-color:#f59e0b05;border-left:4px solid #f59e0b}.card-error{background-color:#ef444405;border-left:4px solid #ef4444}.card-header{align-items:flex-start;display:flex;gap:1rem;justify-content:space-between;min-height:-webkit-fit-content;min-height:fit-content;padding:1.5rem 1.5rem 0}.card-title{color:var(--color-ink);flex:1 1;font-family:var(--font-heading);font-size:1.25rem;font-weight:700;line-height:1.3;margin:0}.card-actions{align-items:center;display:flex;flex-shrink:0;gap:.5rem}.card-content{display:flex;flex:1 1;flex-direction:column}.card-padding-none .card-content,.card-padding-none .card-header{padding:0}.card-padding-small .card-header{padding:1rem 1rem 0}.card-padding-small .card-content{padding:1rem}.card-padding-normal .card-content{padding:1.5rem}.card-padding-normal .card-header+.card-content{padding-top:1rem}.card-padding-large .card-header{padding:2rem 2rem 0}.card-padding-large .card-content{padding:2rem}.card-padding-large .card-header+.card-content{padding-top:1rem}.card-interactive{cursor:pointer;-webkit-user-select:none;user-select:none}.card-interactive:hover{box-shadow:0 8px 25px -5px #0000001a,0 10px 10px -5px #0000000a;transform:translateY(-2px)}.card-interactive:active{box-shadow:var(--shadow-sm);transform:translateY(0)}.card-loading{overflow:hidden;position:relative}.card-loading:after{animation:card-shimmer 1.5s infinite;background:linear-gradient(90deg,#0000,#fff6,#0000);content:"";height:100%;left:-100%;position:absolute;top:0;width:100%}@keyframes card-shimmer{0%{left:-100%}to{left:100%}}.card-disabled{cursor:not-allowed;opacity:.6;pointer-events:none}.card-full-width{width:100%}.card-compact .card-header{padding:1rem 1rem 0}.card-compact .card-content{padding:1rem}.card-compact .card-header+.card-content{padding-top:.5rem}.card-compact .card-title{font-size:1.125rem}.card-content p:first-child{margin-top:0}.card-content p:last-child{margin-bottom:0}.card-content ol,.card-content ul{margin:0;padding-left:1.5rem}.card-content ol:first-child,.card-content ul:first-child{margin-top:0}.card-content ol:last-child,.card-content ul:last-child{margin-bottom:0}@media (max-width:640px){.card-header{align-items:stretch;flex-direction:column;gap:.75rem}.card-actions{justify-content:flex-end}.card-title{font-size:1.125rem}.card-padding-normal .card-header{padding:1rem 1rem 0}.card-padding-normal .card-content{padding:1rem}.card-padding-large .card-header{padding:1.5rem 1.5rem 0}.card-padding-large .card-content{padding:1.5rem}}@media (prefers-color-scheme:dark){.card-primitive{background-color:var(--color-ink);border-color:#374151}.card-title{color:var(--color-off-white)}}.save-notes-modal{max-width:500px;width:90%}.save-notes-modal .modal-header{align-items:center;border-bottom:1px solid #e5e7eb;border-bottom:1px solid var(--border-color,#e5e7eb);display:flex;justify-content:space-between;padding:1.5rem}.save-notes-modal .modal-header h2{color:#111827;color:var(--text-primary,#111827);font-size:1.25rem;font-weight:600;margin:0}.save-notes-modal .modal-close{align-items:center;background:none;border:none;border-radius:4px;color:#6b7280;color:var(--text-secondary,#6b7280);cursor:pointer;display:flex;font-size:1.5rem;height:2rem;justify-content:center;padding:0;transition:background-color .2s;width:2rem}.save-notes-modal .modal-close:hover{background-color:#f3f4f6;background-color:var(--bg-hover,#f3f4f6)}.save-notes-modal .modal-form{padding:1.5rem}.save-notes-modal .form-group{margin-bottom:1.25rem}.save-notes-modal .form-group label{color:#111827;color:var(--text-primary,#111827);display:block;font-size:.875rem;font-weight:500;margin-bottom:.5rem}.save-notes-modal .form-group input[type=text],.save-notes-modal .form-group select{border:1px solid #d1d5db;border:1px solid var(--border-color,#d1d5db);border-radius:6px;font-size:.875rem;padding:.625rem .75rem;transition:border-color .2s,box-shadow .2s;width:100%}.save-notes-modal .form-group input[type=text]:focus,.save-notes-modal .form-group select:focus{border-color:#3b82f6;border-color:var(--primary-color,#3b82f6);box-shadow:0 0 0 3px #3b82f61a;outline:none}.save-notes-modal .form-group input[type=text]:disabled{background-color:#f3f4f6;color:#6b7280;cursor:not-allowed}.save-notes-modal .form-hint{color:#6b7280;color:var(--text-secondary,#6b7280);display:block;font-size:.75rem;margin-top:.375rem}.save-notes-modal .checkbox-group label{align-items:center;cursor:pointer;display:flex;font-weight:400}.save-notes-modal .checkbox-group input[type=checkbox]{cursor:pointer;height:1rem;margin-right:.5rem;width:1rem}.save-notes-modal .modal-actions{border-top:1px solid #e5e7eb;border-top:1px solid var(--border-color,#e5e7eb);display:flex;gap:.75rem;justify-content:flex-end;padding-top:1rem}.save-notes-modal .modal-actions button{padding:.625rem 1.25rem}@media (max-width:640px){.save-notes-modal{max-width:none;width:95%}.save-notes-modal .modal-form,.save-notes-modal .modal-header{padding:1rem}.save-notes-modal .modal-actions{flex-direction:column-reverse}.save-notes-modal .modal-actions button{width:100%}}.solution-display{margin-bottom:2rem}.solution-header{align-items:flex-start;border-bottom:1px solid var(--color-border-light);display:flex;justify-content:space-between;margin-bottom:1.5rem;padding-bottom:1rem}.solution-header h2{color:var(--color-text-primary);font-size:1.5rem;font-weight:700;margin:0}.solution-meta{align-items:flex-end;display:flex;flex-direction:column;gap:.5rem}.confidence-indicator{align-items:center;display:flex;gap:.5rem}.confidence-label{color:var(--color-text-secondary);font-size:.75rem;font-weight:500}.confidence-bar{background-color:var(--color-border-default);border-radius:2px;height:4px;overflow:hidden;width:60px}.confidence-fill{background-color:var(--color-success);height:100%;transition:width var(--duration-normal) var(--ease-out)}.confidence-value{color:var(--color-text-primary);font-size:.75rem;font-weight:600}.step-navigation{align-items:center;background-color:var(--color-bg-alt);border-radius:var(--border-radius-md);display:flex;justify-content:space-between;margin-bottom:1.5rem;padding:1rem}.step-progress{display:flex;flex:1 1;flex-direction:column;gap:.5rem;max-width:200px}.step-counter{color:var(--color-text-primary);font-size:.875rem;font-weight:600}.step-controls{display:flex;gap:.5rem}.solution-content{margin-bottom:1.5rem}.single-step-view .solution-step{background-color:var(--color-bg-primary);border:1px solid var(--color-border-default);border-radius:var(--border-radius-md);padding:1.5rem}.all-steps-view{display:flex;flex-direction:column;gap:1rem}.all-steps-view .solution-step{background-color:var(--color-bg-primary);border:1px solid var(--color-border-light);border-radius:var(--border-radius-md);cursor:pointer;padding:1rem;transition:all var(--duration-fast) var(--ease-out)}.all-steps-view .solution-step:hover{border-color:var(--color-border-strong);box-shadow:var(--shadow-sm)}.step-header{gap:.75rem;margin-bottom:1rem}.step-header,.step-number{align-items:center;display:flex}.step-number{background-color:var(--color-orange);border-radius:50%;color:#fff;flex-shrink:0;font-size:.875rem;font-weight:600;height:28px;justify-content:center;width:28px}.step-title{color:var(--color-text-primary);font-size:1.125rem;font-weight:600;margin:0}.step-content{margin-left:36px}.step-main-content{color:var(--color-text-primary);font-size:.9375rem;line-height:1.6;margin-bottom:.75rem}.step-explanation{background-color:var(--color-bg-alt);border-left:3px solid var(--color-orange);border-radius:var(--border-radius-sm);color:var(--color-text-secondary);font-size:.875rem;line-height:1.5;padding:.75rem}.step-explanation strong{color:var(--color-text-primary)}.final-answer{background-color:var(--color-success-light);border:1px solid var(--color-success);border-radius:var(--border-radius-md);margin:1.5rem 0;padding:1.25rem}.final-answer-content p{margin:0}.final-answer-structured{display:flex;flex-direction:column;gap:.75rem}.answer-field{border-bottom:1px solid #fff3;color:var(--color-text-primary);font-size:.9375rem;line-height:1.6;padding:.5rem 0}.answer-field:last-child{border-bottom:none}.answer-field strong{color:var(--color-success-dark);margin-right:.5rem}.solution-actions{border-top:1px solid var(--color-border-light);display:flex;gap:.75rem;justify-content:flex-end;padding-top:1rem}@media (max-width:768px){.step-navigation{align-items:stretch;flex-direction:column;gap:1rem}.step-progress{max-width:none}.solution-actions,.step-controls{justify-content:center}.solution-actions{flex-wrap:wrap}.solution-header{align-items:stretch;flex-direction:column;gap:1rem}.solution-meta{align-items:flex-start}}@media (max-width:640px){.step-content{margin-left:0;margin-top:.75rem}.step-header{align-items:flex-start;gap:.5rem}.solution-actions,.step-header{flex-direction:column}}.hints-display{margin-bottom:2rem}.hints-header{align-items:flex-start;border-bottom:1px solid var(--color-border-light);display:flex;justify-content:space-between;margin-bottom:1rem;padding-bottom:1rem}.hints-header h2{color:var(--color-text-primary);font-size:1.5rem;font-weight:700;margin:0}.hints-progress{align-items:flex-end;display:flex;flex-direction:column;gap:.5rem}.hints-counter{color:var(--color-text-secondary);font-size:.875rem;font-weight:500}.hints-progress-bar{background-color:var(--color-border-default);border-radius:2px;height:4px;overflow:hidden;width:120px}.hints-progress-fill{background-color:var(--color-info);height:100%;transition:width var(--duration-normal) var(--ease-out)}.hints-description{background-color:var(--color-info-light);border-left:3px solid var(--color-info);border-radius:var(--border-radius-md);margin-bottom:1.5rem;padding:1rem}.hints-description p{color:var(--color-text-primary);font-size:.9375rem;line-height:1.5;margin:0}.hints-content{margin-bottom:2rem;min-height:200px}.hint-item{animation:fadeInUp .3s ease-out;background-color:var(--color-bg-primary);border:1px solid var(--color-border-default);border-radius:var(--border-radius-md);margin-bottom:1.5rem;padding:1.25rem}.hint-header{gap:.75rem;margin-bottom:1rem}.hint-header,.hint-number{align-items:center;display:flex}.hint-number{background-color:var(--color-info);border-radius:50%;color:#fff;flex-shrink:0;height:28px;justify-content:center;width:28px}.hint-number,.hint-type{font-size:.875rem;font-weight:600}.hint-type{color:var(--color-info);letter-spacing:.025em;text-transform:uppercase}.hint-content{margin-left:36px}.hint-text{color:var(--color-text-primary);font-size:.9375rem;line-height:1.6;margin-bottom:.75rem}.hint-explanation{background-color:var(--color-bg-alt);border-left:3px solid var(--color-info);border-radius:var(--border-radius-sm);color:var(--color-text-secondary);font-size:.875rem;line-height:1.5;padding:.75rem}.hint-explanation strong{color:var(--color-text-primary)}.no-hints-message{color:var(--color-text-secondary);padding:2rem 1rem;text-align:center}.no-hints-message p{font-size:.9375rem;line-height:1.5;margin:0}.hints-actions{border-top:1px solid var(--color-border-light);display:flex;flex-direction:column;gap:1rem;padding-top:1rem}.primary-actions{display:flex;justify-content:center}.reveal-answer-button,.reveal-button{min-width:200px}.secondary-actions{display:flex;gap:.75rem;justify-content:center}.final-answer-section{animation:fadeInUp .3s ease-out;background-color:var(--color-success-light);border:1px solid var(--color-success);border-radius:var(--border-radius-md);margin:1.5rem 0;padding:1.25rem}.final-answer-header h3{color:var(--color-success);font-size:1.125rem;font-weight:600;margin:0 0 .75rem}.final-answer-content p{color:var(--color-text-primary);font-size:.9375rem;font-weight:500;line-height:1.6;margin-bottom:.75rem}.answer-explanation{background-color:#ffffffb3;border-left:3px solid var(--color-success);border-radius:var(--border-radius-sm);color:var(--color-text-secondary);font-size:.875rem;line-height:1.5;padding:.75rem}.answer-explanation strong{color:var(--color-text-primary)}.hints-tips{background-color:var(--color-bg-alt);border-radius:var(--border-radius-md);margin-top:2rem;padding:1rem}.tips-header h4{color:var(--color-text-primary);font-size:1rem;font-weight:600;margin:0 0 .75rem}.tips-list{margin:0;padding-left:1.25rem}.tips-list li{color:var(--color-text-secondary);font-size:.875rem;line-height:1.5;margin-bottom:.5rem}.tips-list li:last-child{margin-bottom:0}@media (max-width:768px){.hints-header{align-items:stretch;flex-direction:column;gap:1rem}.hints-progress{align-items:flex-start}.hints-progress-bar{width:100%}.hint-content{margin-left:0;margin-top:.75rem}.hint-header{align-items:flex-start;gap:.5rem}.hint-header,.secondary-actions{flex-direction:column}}@media (max-width:640px){.primary-actions{width:100%}.reveal-answer-button,.reveal-button{min-width:auto;width:100%}}.tabs-container{display:flex;flex-direction:column;width:100%}.tabs-primitive{background-color:initial;display:flex;position:relative}.tabs-default{border-bottom:2px solid #e5e7eb;gap:0}.tabs-pills{background-color:#f3f4f6;border-radius:var(--border-radius-md);gap:.25rem;padding:.25rem}.tabs-underline{border-bottom:1px solid #e5e7eb;gap:0}.tabs-bordered{border:2px solid #e5e7eb;border-radius:var(--border-radius-md);gap:0;overflow:hidden}.tabs-segmented{background-color:#f9fafb;border:1px solid #e5e7eb;border-radius:var(--border-radius-md);gap:.125rem;padding:.125rem}.tabs-tab{align-items:center;background:none;border:none;color:#6b7280;cursor:pointer;display:flex;font-family:var(--font-body);font-weight:500;gap:.5rem;outline:none;position:relative;transition:all .2s ease-in-out;-webkit-user-select:none;user-select:none}.tabs-tab:focus-visible{border-radius:var(--border-radius-sm);box-shadow:0 0 0 2px var(--color-orange)}.tabs-small .tabs-tab{font-size:.875rem;min-height:2rem;padding:.5rem .75rem}.tabs-medium .tabs-tab{font-size:1rem;min-height:2.5rem;padding:.75rem 1rem}.tabs-large .tabs-tab{font-size:1.125rem;min-height:3rem;padding:1rem 1.25rem}.tabs-default .tabs-tab{border-bottom:2px solid #0000;border-radius:0;margin-bottom:-2px}.tabs-default .tabs-tab:hover:not(.tabs-tab-disabled){border-bottom-color:#d1d5db;color:var(--color-ink)}.tabs-default .tabs-tab-active{border-bottom-color:var(--color-orange);color:var(--color-orange)}.tabs-pills .tabs-tab{border-radius:var(--border-radius-sm);flex:1 1;justify-content:center}.tabs-pills .tabs-tab:hover:not(.tabs-tab-disabled){background-color:#e5e7eb;color:var(--color-ink)}.tabs-pills .tabs-tab-active{background-color:var(--color-orange);box-shadow:var(--shadow-sm);color:#fff}.tabs-pills .tabs-tab-active:hover{background-color:var(--color-orange-hover)}.tabs-underline .tabs-tab{border-radius:0;padding-bottom:.75rem}.tabs-underline .tabs-tab:hover:not(.tabs-tab-disabled){color:var(--color-ink)}.tabs-underline .tabs-tab-active{color:var(--color-orange)}.tabs-bordered .tabs-tab{border-radius:0;border-right:1px solid #e5e7eb;flex:1 1;justify-content:center}.tabs-bordered .tabs-tab:last-child{border-right:none}.tabs-bordered .tabs-tab:hover:not(.tabs-tab-disabled){background-color:#f9fafb;color:var(--color-ink)}.tabs-bordered .tabs-tab-active{background-color:var(--color-orange);color:#fff}.tabs-segmented .tabs-tab{border-radius:var(--border-radius-sm);flex:1 1;justify-content:center}.tabs-segmented .tabs-tab:hover:not(.tabs-tab-disabled){background-color:#e5e7eb;color:var(--color-ink)}.tabs-segmented .tabs-tab-active{background-color:#fff;box-shadow:var(--shadow-sm);color:var(--color-ink)}.tabs-tab-icon{align-items:center;display:flex;font-size:.875em;justify-content:center}.tabs-tab-label{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tabs-tab-badge{align-items:center;background-color:#ef4444;border-radius:.625rem;color:#fff;display:flex;font-size:.75rem;font-weight:700;height:1.25rem;justify-content:center;min-width:1.25rem;padding:0 .25rem}.tabs-bordered .tabs-tab-active .tabs-tab-badge,.tabs-pills .tabs-tab-active .tabs-tab-badge,.tabs-tab-active .tabs-tab-badge{background-color:#ffffff4d}.tabs-default .tabs-tab-active .tabs-tab-badge,.tabs-segmented .tabs-tab-active .tabs-tab-badge,.tabs-underline .tabs-tab-active .tabs-tab-badge{background-color:#ef4444}.tabs-disabled .tabs-tab,.tabs-tab-disabled{cursor:not-allowed;opacity:.5;pointer-events:none}.tabs-indicator{background-color:var(--color-orange);border-radius:1px;bottom:0;height:2px;position:absolute;transition:all .3s ease-in-out}.tabs-content{flex:1 1}.tabs-panel{animation:tabs-fade-in .2s ease-in-out;outline:none;padding:1.5rem 0}@keyframes tabs-fade-in{0%{opacity:0;transform:translateY(.5rem)}to{opacity:1;transform:translateY(0)}}.tabs-vertical{flex-direction:row}.tabs-vertical .tabs-primitive{border-bottom:none;border-right:2px solid #e5e7eb;flex-direction:column;width:200px}.tabs-vertical .tabs-tab{border-bottom:none;border-radius:0;border-right:2px solid #0000;justify-content:flex-start;margin-right:-2px;text-align:left}.tabs-vertical .tabs-tab:hover:not(.tabs-tab-disabled){border-right-color:#d1d5db}.tabs-vertical .tabs-tab-active{border-right-color:var(--color-orange)}.tabs-vertical .tabs-content{flex:1 1;padding-left:1.5rem}.tabs-vertical .tabs-panel{padding:0}.tabs-scrollable{-ms-overflow-style:none;overflow-x:auto;scrollbar-width:none}.tabs-scrollable::-webkit-scrollbar{display:none}.tabs-scrollable .tabs-tab{flex-shrink:0;min-width:-webkit-fill-available;min-width:-webkit-fit-content;min-width:fit-content}.tabs-full-width .tabs-tab{flex:1 1;justify-content:center}.tabs-centered{justify-content:center}@media (max-width:640px){.tabs-primitive{-ms-overflow-style:none;overflow-x:auto;scrollbar-width:none}.tabs-primitive::-webkit-scrollbar{display:none}.tabs-tab{min-width:-webkit-fill-available;min-width:-webkit-fit-content;min-width:fit-content;white-space:nowrap}.tabs-small .tabs-tab{font-size:.8125rem;padding:.5rem .625rem}.tabs-medium .tabs-tab{font-size:.9375rem;padding:.625rem .875rem}.tabs-large .tabs-tab{font-size:1rem;padding:.875rem 1rem}.tabs-vertical{flex-direction:column}.tabs-vertical .tabs-primitive{border-bottom:2px solid #e5e7eb;border-right:none;flex-direction:row;width:100%}.tabs-vertical .tabs-tab{border-bottom:2px solid #0000;border-right:none;margin-bottom:-2px;margin-right:0}.tabs-vertical .tabs-content{padding-left:0;padding-top:1.5rem}}@media (prefers-color-scheme:dark){.tabs-default{border-bottom-color:#374151}.tabs-pills{background-color:#374151}.tabs-underline{border-bottom-color:#374151}.tabs-bordered,.tabs-segmented{border-color:#374151}.tabs-segmented{background-color:#1f2937}.tabs-tab{color:#9ca3af}.tabs-tab:hover:not(.tabs-tab-disabled){color:var(--color-off-white)}}.concept-notes-display{margin-bottom:2rem}.concept-notes-header{border-bottom:1px solid var(--color-border-light);margin-bottom:1.5rem;padding-bottom:1rem}.concept-notes-header h2{color:var(--color-text-primary);font-size:1.5rem;font-weight:700;margin-bottom:.5rem}.concept-notes-header p{color:var(--color-text-secondary);font-size:.9375rem;line-height:1.5;margin:0}.concept-tabs-container{margin-bottom:1.5rem}.concept-notes-content{margin-bottom:1.5rem;min-height:300px}.notes-list{display:flex;flex-direction:column;gap:1rem}.concept-note{background-color:var(--color-bg-primary);border:1px solid var(--color-border-default);border-radius:var(--border-radius-md);transition:all var(--duration-fast) var(--ease-out)}.concept-note:hover{border-color:var(--color-border-strong);box-shadow:var(--shadow-sm)}.concept-note.concept{border-left:4px solid var(--color-info)}.concept-note.formula{border-left:4px solid var(--color-orange)}.concept-note.example{border-left:4px solid var(--color-success)}.concept-note.tip{border-left:4px solid var(--color-warning)}.note-header{align-items:center;cursor:pointer;display:flex;justify-content:space-between;padding:1.25rem}.note-title-section{align-items:center;display:flex;flex:1 1;gap:.75rem}.note-icon{flex-shrink:0;font-size:1.25rem}.note-title{color:var(--color-text-primary);flex:1 1;font-size:1.125rem;font-weight:600}.difficulty-badge{border-radius:var(--border-radius-sm);font-size:.75rem;font-weight:600;letter-spacing:.025em;padding:.25rem .5rem;text-transform:uppercase}.difficulty-badge.beginner{background-color:var(--color-success-light);color:var(--color-success)}.difficulty-badge.intermediate{background-color:var(--color-warning-light);color:var(--color-warning)}.difficulty-badge.advanced{background-color:var(--color-error-light);color:var(--color-error)}.expand-button{background:none;border:none;border-radius:var(--border-radius-sm);color:var(--color-text-secondary);cursor:pointer;font-size:1rem;padding:.25rem;transform:rotate(0deg);transition:all var(--duration-fast) var(--ease-out)}.expand-button:hover{background-color:var(--color-bg-alt);color:var(--color-text-primary)}.expand-button.expanded{transform:rotate(180deg)}.note-content{padding:0 1.25rem 1.25rem}.note-description{color:var(--color-text-primary);font-size:.9375rem;line-height:1.6}.formula-section,.note-description{margin-bottom:1rem}.formula-section strong{color:var(--color-text-primary);display:block;font-size:.875rem;margin-bottom:.5rem}.formula-display{background-color:var(--color-bg-alt);border:1px solid var(--color-border-light);border-radius:var(--border-radius-sm);color:var(--color-text-primary);font-family:var(--font-mono);font-size:1rem;padding:.75rem;text-align:center}.note-details{animation:fadeInDown .3s ease-out;border-top:1px solid var(--color-border-light);margin-top:1rem;padding-top:1rem}.applications-section,.derivation-section,.details-section{margin-bottom:1rem}.applications-section strong,.derivation-section strong,.details-section strong{color:var(--color-text-primary);display:block;font-size:.875rem;margin-bottom:.5rem}.derivation-section p,.details-section p{color:var(--color-text-secondary);font-size:.875rem;line-height:1.6;margin:0}.applications-section ul{margin:0;padding-left:1.25rem}.applications-section li{color:var(--color-text-secondary);font-size:.875rem;line-height:1.5;margin-bottom:.25rem}.related-topics{margin-top:1rem}.related-topics strong{color:var(--color-text-primary);display:block;font-size:.875rem;margin-bottom:.5rem}.topic-tags{display:flex;flex-wrap:wrap;gap:.5rem}.topic-tag{background-color:var(--color-bg-alt);border:1px solid var(--color-border-light);border-radius:var(--border-radius-sm);font-size:.75rem;padding:.25rem .5rem}.no-notes-message,.topic-tag{color:var(--color-text-secondary)}.no-notes-message{padding:2rem 1rem;text-align:center}.no-notes-message p{font-size:.9375rem;line-height:1.5;margin:0}.concept-notes-actions{border-top:1px solid var(--color-border-light);display:flex;gap:.75rem;justify-content:flex-end;padding-top:1rem}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@media (max-width:768px){.note-header{padding:1rem}.note-content{padding:0 1rem 1rem}.note-title-section{align-items:flex-start;flex-direction:column;gap:.5rem}.concept-notes-actions{flex-wrap:wrap;justify-content:center}}@media (max-width:640px){.topic-tags{justify-content:center}.concept-notes-actions{flex-direction:column}.note-title{font-size:1rem}}.input-container{display:flex;flex-direction:column;gap:.5rem;width:100%}.input-label{align-items:center;color:var(--color-ink);display:flex;font-family:var(--font-body);font-size:.875rem;font-weight:600;gap:.25rem}.input-required{color:#ef4444;font-weight:700}.input-wrapper{position:relative;width:100%}.input-primitive{background-color:#fff;border:2px solid var(--color-cool-gray);border-radius:var(--border-radius-md);color:var(--color-ink);font-family:var(--font-body);font-size:1rem;line-height:1.5;outline:none;padding:.75rem 1rem;resize:none;transition:all .2s ease-in-out;width:100%}.input-primitive::placeholder{color:#9ca3af;opacity:1}.input-focused,.input-primitive:focus{border-color:var(--color-orange);box-shadow:0 0 0 3px #f973161a}.input-primitive:hover:not(.input-disabled):not(.input-focused){border-color:#9ca3af}.input-error,.input-error:focus{border-color:#ef4444}.input-error:focus{box-shadow:0 0 0 3px #ef44441a}.input-error-message{align-items:center;color:#ef4444;display:flex;font-size:.875rem;font-weight:500;gap:.25rem}.input-error-message:before{content:"⚠";font-size:.75rem}.input-disabled{background-color:#f9fafb;color:#9ca3af;cursor:not-allowed;opacity:.7}.input-disabled::placeholder{color:#d1d5db}textarea.input-primitive{font-family:var(--font-body);min-height:100px;resize:vertical}input[type=email].input-primitive,input[type=number].input-primitive,input[type=password].input-primitive,input[type=tel].input-primitive,input[type=text].input-primitive,input[type=url].input-primitive{height:48px}input[type=password].input-primitive{font-family:text-security-disc,-webkit-text-security,sans-serif;letter-spacing:.1em}input[type=number].input-primitive{-webkit-appearance:textfield;appearance:textfield}input[type=number].input-primitive::-webkit-inner-spin-button,input[type=number].input-primitive::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}input[type=search].input-primitive{-webkit-appearance:none;appearance:none}input[type=search].input-primitive::-webkit-search-cancel-button,input[type=search].input-primitive::-webkit-search-decoration,input[type=search].input-primitive::-webkit-search-results-button,input[type=search].input-primitive::-webkit-search-results-decoration{-webkit-appearance:none;appearance:none}input[type=file].input-primitive{cursor:pointer;padding:.5rem}input[type=file].input-primitive::-webkit-file-upload-button{background-color:var(--color-orange);border:none;border-radius:var(--border-radius-sm);color:#fff;cursor:pointer;font-weight:600;margin-right:1rem;padding:.5rem 1rem}input[type=file].input-primitive::-webkit-file-upload-button:hover{background-color:var(--color-orange-hover)}.input-small{font-size:.875rem;height:40px;padding:.5rem .75rem}.input-large{font-size:1.125rem;height:56px;padding:1rem 1.25rem}.input-full-width{width:100%}.input-valid,.input-valid:focus{border-color:#10b981}.input-valid:focus{box-shadow:0 0 0 3px #10b9811a}@media (prefers-color-scheme:dark){.input-primitive{background-color:var(--color-ink);border-color:#4b5563;color:var(--color-off-white)}.input-primitive::placeholder{color:#9ca3af}.input-disabled{background-color:#374151;color:#6b7280}}@media (max-width:640px){.input-primitive{font-size:.9375rem;padding:.625rem .875rem}.input-error-message,.input-label{font-size:.8125rem}}.chat-panel{background:#0000;display:flex;flex-direction:column;height:100%}.chat-header{background:linear-gradient(180deg,#f9faffcc,#fff 90%);border-bottom:1px solid #e2e8f0cc;padding:1.5rem 1.75rem 1.25rem}.chat-title-group{display:flex;flex-direction:column;gap:.35rem}.chat-header h3{color:#0f172a;font-size:1.35rem;font-weight:700;margin:0}.chat-subtitle{color:#6b7280;font-size:.9rem}.chat-messages{background:linear-gradient(180deg,#f8fafcbf,#fff 65%);display:flex;flex:1 1;flex-direction:column;gap:1rem;overflow-y:auto;padding:1.5rem 1.75rem}.message{display:flex}.message.ai{justify-content:flex-start}.message.user{justify-content:flex-end}.message-content{border-radius:18px;box-shadow:0 12px 24px -18px #0f172a73;font-size:.95rem;line-height:1.5;max-width:80%;padding:.85rem 1rem}.message.ai .message-content{background:#fff;border:1px solid #e2e8f0e6;border-bottom-left-radius:6px;color:#1f2937}.message.user .message-content{background:linear-gradient(135deg,#f97316,#f59e0b);border-bottom-right-radius:6px;color:#fff}.message.streaming .message-content{animation:pulse 1.5s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.9}}.typing-cursor{animation:blink 1s step-end infinite;color:#f97316;display:inline-block;font-weight:700;margin-left:2px}@keyframes blink{0%,to{opacity:1}50%{opacity:0}}.message-content p{margin:0}.chat-input-area{background:#fff;border-top:1px solid #e2e8f0d9;padding:1.25rem 1.75rem 1.5rem}.chat-form{margin:0;width:100%}.chat-input-shell{align-items:center;background:linear-gradient(135deg,#f8fafcf2,#fff);border:1px solid #cbd5e1b3;border-radius:9999px;box-shadow:inset 0 1px 0 #fff9,0 16px 28px -24px #0f172a80;display:flex;gap:.75rem;padding:.35rem .45rem .35rem 1rem;position:relative;width:100%}.chat-input-shell .input-container{flex:1 1;gap:0;margin:0}.chat-input-shell .input-wrapper{width:100%}.chat-input-shell .input-primitive{background:#0000;border:none;box-shadow:none;color:#1f2937;font-size:.95rem;height:44px;padding:0}.chat-input-shell .input-primitive:focus{box-shadow:none}.chat-input-shell .input-primitive::placeholder{color:#94a3b8}.send-button{background:linear-gradient(135deg,#f97316,#f59e0b)!important;border:none!important;border-radius:9999px!important;box-shadow:0 18px 30px -18px #f9731699;flex-shrink:0;font-weight:600!important;margin-right:-.15rem;padding:.65rem 1.6rem!important}.send-button:hover{box-shadow:0 22px 36px -20px #f97316a6}@media (max-width:768px){.chat-header{padding:1.25rem 1.5rem 1rem}.chat-header h3{font-size:1.2rem}.chat-subtitle{font-size:.85rem}.chat-messages{padding:1.25rem 1.5rem}.chat-input-area{padding:1rem 1.5rem 1.25rem}.message-content{font-size:.9rem;max-width:85%;padding:.75rem .9rem}.chat-input-shell .input-primitive{font-size:.9rem;height:40px}.send-button{font-size:.9rem;padding:.6rem 1.4rem!important}}@media (max-width:640px){.chat-header,.chat-input-area,.chat-messages{padding-left:1.25rem;padding-right:1.25rem}.message-content{max-width:90%}}@media (max-width:480px){.chat-header,.chat-input-area,.chat-messages{padding-left:1rem;padding-right:1rem}.chat-header h3{font-size:1.1rem}.message-content{font-size:.85rem;padding:.65rem .8rem}.chat-input-shell{padding:.3rem .4rem .3rem .9rem}.send-button{font-size:.85rem;padding:.55rem 1.2rem!important}}.solve-problems-page{--page-vertical-pad:clamp(2rem,4vh + 1rem,3.25rem);--page-left-pad:clamp(2.25rem,7vw,6.5rem);--page-right-pad:clamp(0.75rem,2vw,1.5rem);background:linear-gradient(180deg,#f5f7fb,#f8f9fb 45%,#fff);box-sizing:border-box;min-height:calc(100vh - 80px);padding:var(--page-vertical-pad) var(--page-right-pad) var(--page-vertical-pad) var(--page-left-pad)}.solve-problems-page.solution-mode,.solve-problems-page.upload-mode{--page-vertical-pad:clamp(1.5rem,4vh,2.5rem);--page-left-pad:clamp(2rem,6vw,6rem);--page-right-pad:clamp(0.5rem,1.5vw,1rem)}.solve-problems-page.solution-mode{overflow:visible}.solve-problems-layout{grid-gap:2rem;align-items:flex-start;display:grid;gap:2rem;grid-template-columns:minmax(0,1fr) auto;justify-content:space-between;margin:0 0 0 auto;max-width:1240px;width:100%}.solve-problems-page.upload-mode .solve-problems-layout{height:auto}.main-content{display:flex;flex-direction:column;gap:2rem;max-width:700px;width:100%}.solve-problems-page.upload-mode .main-content{min-height:0}.solve-problems-page.upload-mode .upload-card{background:#fff;border:1px solid #0f172a0f;border-radius:24px;box-shadow:0 24px 48px -28px #0f172a59;display:flex;flex-direction:column;gap:1.25rem;padding:1.75rem}.chat-sidebar{display:flex;height:600px;justify-content:flex-end;position:-webkit-sticky;position:sticky;top:var(--page-vertical-pad);width:100%}.chat-panel-elevated{background:#fff;border:1px solid #0f172a0f;border-radius:24px;box-shadow:0 24px 48px -28px #0f172a59;display:flex;flex-direction:column;height:100%;margin-left:auto;max-width:100%;overflow:hidden;width:360px}@media (min-width:1025px){.solve-problems-layout{grid-template-columns:minmax(0,700px) 360px}.chat-sidebar{align-self:flex-start;top:96px}}.upload-card{background:#fff;border:1px solid #0f172a0f;border-radius:24px;box-shadow:0 24px 48px -28px #0f172a59;display:flex;flex-direction:column;gap:1.25rem;padding:1.75rem}.card-top-bar{align-items:center;display:flex;justify-content:flex-start;margin-bottom:-.25rem}.create-mode-header{padding:1rem 0;text-align:center}.create-mode-header h2{color:#f97316;font-size:1.25rem;font-weight:600;margin:0 0 .5rem}.create-mode-header p{color:#6b7280;font-size:.9rem;margin:0}.notes-link{align-items:center;background:linear-gradient(135deg,#f3f4f6,#fff);border:1px solid #e5e7eb;border-radius:9999px;box-shadow:0 4px 10px -6px #0f172a40;color:#374151;display:inline-flex;font-size:.78rem;font-weight:600;gap:.5rem;letter-spacing:.02em;padding:.45rem .85rem .4rem;position:relative;text-decoration:none;text-transform:uppercase;transition:all .25s ease}.notes-link:hover{background:#fff;border-color:#d1d5db;box-shadow:0 10px 18px -10px #0f172a59;color:#111827;transform:translateY(-2px)}.notes-link:focus-visible{outline:3px solid #f9731680;outline-offset:2px}.notes-link-icon{font-size:.9rem;line-height:1}@media (max-width:640px){.card-top-bar{justify-content:center}.notes-link{font-size:.7rem;padding:.4rem .75rem .35rem}}.variant-banner{align-items:center;background:linear-gradient(135deg,#f9731614,#fb923c1f);border:1px solid #f9731633;border-radius:16px;display:flex;gap:1rem;margin-bottom:1rem;padding:1rem 1.25rem}.variant-banner-icon{flex-shrink:0;font-size:1.75rem}.variant-banner-content{display:flex;flex:1 1;flex-direction:column;gap:.25rem}.variant-banner-content strong{color:#0f172a;font-size:.95rem;font-weight:700;letter-spacing:-.01em}.variant-banner-content p{color:#0f172ab3;font-size:.85rem;line-height:1.5;margin:0}.card-heading{display:flex;flex-direction:column;gap:.5rem;text-align:center}.card-heading h1{color:#0f172a;font-size:1.85rem;font-weight:700;letter-spacing:-.02em;margin:0}.card-subtitle{color:#6b7280;font-size:1rem;line-height:1.65;margin:0 auto;max-width:32rem}.upload-tabs{align-items:center;background:#f3f4f6;border:1px solid #e5e7eb;border-radius:9999px;display:flex;gap:.45rem;padding:.45rem}.tab-button{align-items:center;background:#0000;border:none;border-radius:9999px;color:#6b7280;cursor:pointer;display:inline-flex;flex:1 1;font-size:.95rem;font-weight:600;gap:.6rem;height:2.75rem;justify-content:center;padding:0 1.15rem;transition:all .2s ease}.tab-button:hover{background:#ffffffd9;box-shadow:0 8px 20px -12px #0f172a73;color:#111827}.tab-button.active{background:#fff;box-shadow:0 12px 28px -16px #4f46e559;color:#0f172a}.tab-button:disabled{cursor:wait;opacity:.6}.tab-button:focus-visible{outline:3px solid #f9731659;outline-offset:2px}.tab-icon{justify-content:center}.ai-content-tabs,.tab-icon{align-items:center;display:flex}.ai-content-tabs{background:#f3f4f6;border:1px solid #e5e7eb;border-radius:12px;gap:.5rem;margin-bottom:1.5rem;padding:.5rem}.ai-tab{align-items:center;background:#0000;border:none;border-radius:8px;color:#6b7280;cursor:pointer;display:inline-flex;flex:1 1;font-size:.9rem;font-weight:600;gap:.5rem;height:2.5rem;justify-content:center;padding:0 1rem;transition:all .2s ease}.ai-tab:hover{background:#ffffffb3;color:#111827}.ai-tab.active{background:#fff;box-shadow:0 2px 8px #4f46e526;color:#4f46e5}.ai-tab svg{height:16px;width:16px}.generate-more-actions{align-items:center;background:#f9fafb;border:1px solid #e5e7eb;border-radius:12px;display:flex;flex-wrap:wrap;gap:.75rem;margin-bottom:1.5rem;padding:1rem}.generate-more-actions button{flex:1 1;min-width:180px}.tab-icon svg{height:20px;width:20px}.upload-zone{width:100%}.image-drop-area{align-items:center;background:linear-gradient(135deg,#f9faffeb,#fff);border:1.5px dashed #d0d7e6;border-radius:20px;cursor:pointer;display:flex;justify-content:center;min-height:250px;outline:none;overflow:hidden;padding:1rem;text-align:center;transition:all .25s ease}.image-preview{border-radius:12px;max-height:230px;max-width:100%;object-fit:contain}.image-drop-area:focus,.image-drop-area:hover{border-color:#f97316;box-shadow:0 0 0 3px #f9731626;transform:translateY(-2px)}.drop-content{align-items:center;color:#4b5563;display:flex;flex-direction:column;gap:.65rem}.document-icon{background:#f973161a;border-radius:16px;color:#f97316;display:inline-flex;padding:.65rem}.document-icon svg{height:48px;width:48px}.drop-title{color:#1f2937;font-size:1.02rem;font-weight:600;margin:0}.drop-hint{color:#6b7280;font-size:.9rem;margin:0}.text-input{background:#f9fafb;border:1px solid #d1d5db;border-radius:18px;color:#1f2937;font-size:1rem;line-height:1.6;max-height:140px;min-height:100px;padding:1rem 1.2rem;resize:vertical;transition:all .2s ease;width:95%}.text-input:focus{background:#fff;border-color:#f97316;box-shadow:0 0 0 4px #f9731626;outline:none}.text-input::placeholder{color:#9ca3af}.form-fields{grid-gap:1rem;display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.field-group{display:flex;flex-direction:column;gap:.6rem}.field-label{color:#1f2937;font-size:.9rem;font-weight:600}.styled-select{-webkit-appearance:none;appearance:none;background:#fff;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.6' d='m6 8 4 4 4-4'/%3E%3C/svg%3E");background-position:right .75rem center;background-repeat:no-repeat;background-size:18px 18px;border:1px solid #d1d5db;border-radius:14px;color:#1f2937;font-size:.95rem;min-height:52px;padding:.8rem 2.75rem .8rem 1rem;transition:all .2s ease;width:100%}.styled-select:focus,.styled-select:hover{border-color:#f97316;box-shadow:0 0 0 3px #f973161f;outline:none}.action-row{align-items:center;display:flex;flex-wrap:wrap;gap:.85rem;justify-content:center}.guide-btn,.solve-btn{border-radius:14px!important;box-shadow:none!important;font-weight:600!important;min-width:190px;padding:.85rem 1.6rem!important}.solve-btn{background:#f97316!important;border:none!important;box-shadow:0 18px 30px -20px #f9731699!important;color:#fff!important}.solve-btn:hover{background:#ea580c!important;box-shadow:0 24px 40px -18px #f97316a6!important;transform:translateY(-1px)}.solve-btn:disabled{box-shadow:none!important;opacity:.55;transform:none}.guide-btn{background:#fff!important;border:1px solid #e5e7eb!important;color:#1f2937!important}.guide-btn:hover{background:#f9fafb!important;border-color:#d1d5db!important}@media (max-width:1200px){.solve-problems-page{--page-left-pad:clamp(2rem,6vw,5rem);--page-right-pad:clamp(0.75rem,2.5vw,1.25rem)}.solve-problems-layout{gap:1.75rem;grid-template-columns:minmax(0,1fr) auto;margin:0 auto}.chat-panel-elevated{width:340px}}@media (max-width:1024px){.solve-problems-page{--page-vertical-pad:clamp(1.75rem,4vh,2.5rem);--page-left-pad:clamp(1.5rem,6vw,2.5rem);--page-right-pad:clamp(1.25rem,5vw,2.25rem)}.solve-problems-page.upload-mode{overflow:visible}.solve-problems-page.upload-mode .solve-problems-layout{height:auto;max-height:none}.solve-problems-page.upload-mode .chat-sidebar,.solve-problems-page.upload-mode .main-content{min-height:auto}.solve-problems-layout{gap:2rem;grid-template-columns:1fr;margin:0 auto}.chat-sidebar{justify-content:center}.chat-panel-elevated{height:auto;margin-left:0;max-height:none;position:static;top:auto;width:100%}}@media (max-width:640px){.solve-problems-page{--page-vertical-pad:clamp(1.25rem,5vw,1.75rem);--page-left-pad:clamp(1rem,6vw,1.5rem);--page-right-pad:clamp(1rem,6vw,1.5rem)}.upload-card{border-radius:20px;gap:1rem;padding:1.5rem}.card-heading h1{font-size:1.6rem}.card-subtitle{font-size:.9rem}.upload-tabs{gap:.35rem;padding:.4rem}.tab-button{font-size:.85rem;gap:.5rem;height:2.5rem;padding:0 .9rem}.image-drop-area{border-radius:16px;min-height:200px;padding:.75rem}.text-input{font-size:.9rem;min-height:120px;padding:.85rem 1rem}.form-fields{gap:.75rem;grid-template-columns:1fr}.guide-btn,.solve-btn{min-width:100%}.chat-panel-elevated{border-radius:20px}}@media (max-width:480px){.solve-problems-page{--page-vertical-pad:1rem;--page-left-pad:0.75rem;--page-right-pad:0.75rem}.upload-card{border-radius:18px;padding:1.25rem}.card-heading h1{font-size:1.4rem}.card-subtitle{font-size:.85rem}.tab-button{font-size:.8rem;height:2.25rem;padding:0 .75rem}.image-drop-area{min-height:180px}.form-fields{gap:.5rem}.styled-select{font-size:.85rem;padding:.7rem .85rem}.problem-action-button{font-size:.85rem;padding:.75rem 1.4rem}}.problem-actions{align-items:center;display:flex;flex-wrap:wrap;gap:.75rem;justify-content:center;margin-top:1rem;width:100%}.problem-action-button{border:none;border-radius:14px;box-shadow:0 12px 30px -12px #3b82f6a6;color:#fff;flex:1 1 220px;font-weight:600;min-width:200px;padding:.85rem 1.6rem;transition:transform .2s ease,box-shadow .2s ease;transition:transform var(--duration-fast,.2s) var(--ease-out,ease),box-shadow var(--duration-fast,.2s) var(--ease-out,ease)}.problem-action-button .btn-icon{font-size:1rem}.problem-action-button:hover:not(.btn-disabled){transform:translateY(-1px)}.problem-action-button:active:not(.btn-disabled){transform:translateY(0)}.solve-action,.solve-action:focus-visible,.solve-action:hover:not(.btn-disabled){background:linear-gradient(90deg,#60a5fa,#7c3aed);border-color:#0000;box-shadow:0 16px 35px -18px #7c3aedbf;color:#fff}.hints-action,.hints-action:focus-visible,.hints-action:hover:not(.btn-disabled){background:linear-gradient(90deg,#f472b6,#ec4899);border-color:#0000;box-shadow:0 16px 35px -18px #ec4899a6;color:#fff}.concept-action,.concept-action:focus-visible,.concept-action:hover:not(.btn-disabled){background:#fff;border:2px solid #7c3aed40;box-shadow:0 10px 28px -18px #4c1d95cc;color:#111827;color:var(--color-ink,#111827)}.concept-action .btn-text{font-weight:600}.concept-action .btn-icon{color:#f97316;color:var(--color-orange,#f97316)}.concept-callout{background:linear-gradient(135deg,#ede9fea6,#dbeafea6);border:1px solid #7c3aed33;border-radius:20px;border-radius:var(--border-radius-lg,20px);box-shadow:0 8px 20px -14px #4c1d958c;display:flex;gap:1rem;margin-top:1.5rem;padding:1rem 1.25rem}.concept-callout-icon{align-items:flex-start;color:#f97316;color:var(--color-orange,#f97316);display:flex;font-size:1.75rem}.concept-callout-content h3{color:#111827;color:var(--color-text-primary,#111827);font-size:1rem;font-weight:700;margin:0 0 .25rem}.concept-callout-content p{color:#4b5563;color:var(--color-text-secondary,#4b5563);font-size:.9rem;line-height:1.5;margin:0}@media (max-width:1024px){.problem-actions{justify-content:center}}@media (max-width:768px){.problem-actions{align-items:stretch;flex-direction:column;gap:.5rem}.problem-action-button{min-width:auto;width:100%}.concept-callout{flex-direction:column}.concept-callout-icon{font-size:1.5rem}}.solution-view-header{display:flex;flex-direction:column;gap:.75rem;margin-bottom:1.5rem}.solution-view-actions{display:flex;justify-content:flex-start}.solution-view-meta{display:flex;flex-direction:column;gap:.35rem}.view-pill{align-items:center;background:#4f46e51f;border-radius:999px;color:#4338ca;display:inline-flex;font-size:.85rem;font-weight:600;padding:.25rem .75rem;width:-webkit-fit-content;width:fit-content}.solution-view-meta p{color:#4b5563;font-size:.95rem;margin:0}.solution-content-stack{display:flex;flex-direction:column;gap:1.5rem}.solution-loading-panel{align-items:center;background:linear-gradient(135deg,#e0e7ff66,#ffffffe6);border:1px solid #6366f126;border-radius:18px;box-shadow:0 18px 35px -24px #4f46e573;display:flex;gap:1rem;padding:1.25rem 1.5rem}.solution-loading-spinner{animation:solution-spin .8s linear infinite;border:3px solid #4f46e533;border-radius:50%;border-top-color:#4f46e5;height:32px;width:32px}.solution-loading-copy{display:flex;flex-direction:column;gap:.25rem}.loading-title{color:#312e81;font-weight:600;margin:0}.loading-message{color:#4b5563;font-size:.95rem;margin:0}@keyframes solution-spin{to{transform:rotate(1turn)}}@media (max-width:768px){.solution-view-header{gap:.5rem}.solution-loading-panel{align-items:flex-start;flex-direction:column}}.tutor-page{display:flex;flex-direction:column;height:calc(100vh - 80px)}@media (max-width:768px){.tutor-page{height:auto;min-height:calc(100vh - 80px);padding:1rem}}@media (max-width:480px){.tutor-page{padding:.5rem}}.folder-sidebar{background:#fff;border:1px solid #0f172a14;border-radius:24px;box-shadow:0 20px 40px -28px #0f172a66;display:flex;flex-direction:column;gap:1.5rem;height:-webkit-fit-content;height:fit-content;max-width:280px;min-width:260px;padding:2rem 1.5rem}.folder-header{border-bottom:1px solid #0f172a14;padding-bottom:1rem}.folder-header h2{color:#0f172a;font-size:1.25rem;font-weight:700;margin:0 0 .5rem}.folder-header p{color:#64748b;font-size:.875rem;line-height:1.4;margin:0}.folder-list{display:flex;flex-direction:column;gap:.75rem}.folder-item{align-items:center;background:#fafbfc;border:1px solid #94a3b833;border-radius:16px;color:#1f2937;cursor:pointer;display:flex;font-size:.95rem;font-weight:600;justify-content:space-between;padding:1rem 2.5rem 1rem 1.25rem;text-align:left;transition:all .2s ease;width:100%}.folder-item:hover{background:#fff;border-color:#f9731666;box-shadow:0 4px 12px #f9731626;transform:translateY(-1px)}.folder-item.active{background:linear-gradient(135deg,#f973161f,#fffffff2);border-color:#f9731680;box-shadow:0 4px 16px #f9731633;color:#0f172a}.folder-item__name{color:inherit;font-weight:600}.folder-item__meta{background:#94a3b826;border-radius:8px;color:#64748b;font-size:.75rem;font-weight:500;padding:.25rem .5rem;white-space:nowrap}.folder-item.active .folder-item__meta{background:#f9731626;color:#ea580c}.folder-empty{background:#f8fafc;border:1px dashed #cbd5e1;border-radius:12px;color:#64748b;font-size:.9rem;padding:2rem 1rem;text-align:center}.folder-item-wrapper{position:relative;transition:all .2s ease}.folder-delete-btn{align-items:center;background:#ef444414;border:none;border-radius:8px;box-shadow:0 2px 4px #ef44441a;color:#dc2626;cursor:pointer;display:flex;font-size:1.1rem;font-weight:500;height:24px;justify-content:center;line-height:1;opacity:0;padding:0;position:absolute;right:12px;top:50%;transform:translateY(-50%);transition:all .2s ease;width:24px}.folder-item-wrapper:hover .folder-delete-btn{opacity:1}.folder-delete-btn:hover{background:#ef44441f;box-shadow:0 4px 8px #ef444426;color:#b91c1c;transform:translateY(-50%) scale(1.1)}.folder-item-wrapper.drag-over{transform:scale(1.02)}.folder-item-wrapper.drag-over .folder-item{animation:dragPulse 1s infinite;background:linear-gradient(135deg,#3b82f626,#fffffff2);border:2px dashed #3b82f6;box-shadow:0 8px 24px #3b82f640}@keyframes dragPulse{0%,to{box-shadow:0 8px 24px #3b82f640}50%{box-shadow:0 12px 32px #3b82f659}}@media (max-width:900px){.folder-sidebar{align-items:center;flex-direction:row;gap:1rem;max-width:none;overflow-x:auto;padding:1.5rem}.folder-header{border-bottom:none;border-right:1px solid #0f172a14;min-width:200px;padding-bottom:0;padding-right:1rem}.folder-list{flex-direction:row;gap:.75rem}.folder-item-wrapper{min-width:180px}.folder-item{padding:.75rem 2.5rem .75rem 1rem}}.saved-item-card{background:#fff;border:1px solid #0f172a14;border-radius:20px;box-shadow:0 12px 32px -16px #0f172a40;cursor:pointer;display:flex;flex-direction:column;gap:1rem;min-height:200px;padding:1.75rem;position:relative;transition:all .2s ease}.saved-item-card.compact{min-height:180px;min-width:280px;padding:1.5rem}.saved-item-card:focus,.saved-item-card:hover{border-color:#f9731633;box-shadow:0 20px 48px -20px #f9731659;outline:none;transform:translateY(-4px)}.saved-item-card[draggable=true]:hover{cursor:grab}.saved-item-card[draggable=true]:active{cursor:grabbing;opacity:.9;transform:translateY(-2px) rotate(2deg)}.saved-item-card__header{align-items:center;color:#64748b;display:flex;font-size:.75rem;gap:.75rem;justify-content:space-between;letter-spacing:.05em;text-transform:uppercase}.saved-item-card__badge{align-items:center;background:#94a3b82e;border-radius:999px;color:#475569;display:inline-flex;font-weight:600;justify-content:center;padding:.2rem .65rem}.saved-item-card__badge--solution{background:#3b82f626;color:#1d4ed8}.saved-item-card__badge--concept_note{background:#fbbf2426;color:#92400e}.saved-item-card__badge--hint{background:#8b5cf626;color:#5b21b6}.saved-item-card__badge--problem{background:#ec489926;color:#9f1239}.saved-item-card__meta{align-items:center;display:inline-flex;gap:.5rem}.saved-item-card__star{background:none;border:none;color:var(--color-gray-400);cursor:pointer;font-size:1.2rem;padding:4px;transition:color .2s,transform .2s}.saved-item-card__star:hover{color:var(--color-yellow-500);transform:scale(1.2)}.saved-item-card__star.is-starred{color:var(--color-yellow-400)}.saved-item-card__menu-container{position:relative}.saved-item-card__menu-toggle{background:none;border:none;color:var(--color-gray-500);cursor:pointer;font-size:1.2rem;padding:4px}.saved-item-card__menu{background:#fff;border:1px solid var(--color-gray-200);border-radius:4px;box-shadow:0 4px 8px #0000001a;padding:4px 0;position:absolute;right:0;top:100%;z-index:10}.saved-item-card__menu button{background:none;border:none;cursor:pointer;display:block;padding:8px 12px;text-align:left;width:100%}.saved-item-card__menu button:hover{background-color:var(--color-gray-100)}.saved-item-card__title{color:#0f172a;font-size:1rem;font-weight:600;margin:0}.saved-item-card__excerpt{color:#475569;font-size:.9rem;line-height:1.5;margin:0}.saved-item-card__footer{align-items:flex-end;display:flex;gap:1rem;justify-content:space-between;margin-top:auto;padding-top:.5rem}.saved-item-card__actions{align-items:center;display:flex;flex-shrink:0;gap:.5rem}.saved-item-card__tags{align-items:center;color:#64748b;display:flex;flex-wrap:wrap;font-size:.75rem;gap:.5rem;min-height:24px}.saved-item-card__tags span{background:#0f172a14;border-radius:12px;font-weight:500;line-height:1.2;padding:.25rem .75rem}.saved-item-card__action{background:#f973161a;border:none;border-radius:20px;color:#ea580c;cursor:pointer;font-size:.875rem;font-weight:600;min-width:70px;padding:.5rem 1rem;text-align:center;transition:all .2s ease;white-space:nowrap}.saved-item-card__action:hover{background:#f9731626;color:#c2410c;transform:translateY(-1px)}.study-action{align-items:center;background:#3b82f61a;color:#1d4ed8;display:inline-flex;justify-content:center;text-decoration:none}.study-action:hover{background:#3b82f626;color:#1e40af;transform:translateY(-1px)}@media (max-width:600px){.saved-item-card{padding:1.25rem}.saved-item-card__footer{align-items:flex-start;flex-direction:column}.saved-item-card__action{align-self:flex-end}}.saved-item-card__time{color:#94a3b8}.view-saved-modal-overlay{z-index:1000}.view-saved-modal{display:flex;flex-direction:column;max-height:90vh;max-width:900px;overflow:hidden;width:95%}.view-saved-modal .modal-header{align-items:flex-start;background:#fff;background:var(--bg-primary,#fff);border-bottom:1px solid #e5e7eb;border-bottom:1px solid var(--border-color,#e5e7eb);display:flex;justify-content:space-between;padding:1.5rem}.view-saved-modal .header-content{flex:1 1;min-width:0}.view-saved-modal .header-title{align-items:center;display:flex;flex-wrap:wrap;gap:.75rem;margin-bottom:.5rem}.view-saved-modal .item-type-badge{border-radius:9999px;display:inline-block;font-size:.75rem;font-weight:600;letter-spacing:.025em;padding:.25rem .75rem;text-transform:uppercase}.view-saved-modal .item-type-badge.solution{background-color:#dbeafe;color:#1e40af}.view-saved-modal .item-type-badge.concept_note{background-color:#fef3c7;color:#92400e}.view-saved-modal .item-type-badge.hint{background-color:#e0e7ff;color:#3730a3}.view-saved-modal .item-type-badge.problem{background-color:#ddd6fe;color:#5b21b6}.view-saved-modal .header-title h2{color:#111827;color:var(--text-primary,#111827);font-size:1.25rem;font-weight:600;line-height:1.4;margin:0}.view-saved-modal .header-meta{display:flex;flex-wrap:wrap;gap:.5rem}.view-saved-modal .meta-tag{background-color:#f3f4f6;background-color:var(--bg-secondary,#f3f4f6);border-radius:4px;color:#6b7280;color:var(--text-secondary,#6b7280);display:inline-block;font-size:.75rem;font-weight:500;padding:.25rem .625rem}.view-saved-modal .modal-close{align-items:center;background:none;border:none;border-radius:4px;color:#6b7280;color:var(--text-secondary,#6b7280);cursor:pointer;display:flex;flex-shrink:0;font-size:1.5rem;height:2rem;justify-content:center;padding:0;transition:background-color .2s;width:2rem}.view-saved-modal .modal-close:hover{background-color:#f3f4f6;background-color:var(--bg-hover,#f3f4f6)}.view-saved-modal .modal-body{background:#f9fafb;background:var(--bg-secondary,#f9fafb);flex:1 1;overflow-y:auto;padding:1.5rem}.saved-item-view-content{display:flex;flex-direction:column;gap:1.5rem}.problem-context{background:#fff;background:var(--bg-primary,#fff);border:1px solid #e5e7eb;border:1px solid var(--border-color,#e5e7eb);border-radius:8px;padding:1.5rem}.problem-context h3{color:#111827;color:var(--text-primary,#111827);font-size:1rem;font-weight:600;margin:0 0 .75rem}.problem-context p{color:#4b5563;color:var(--text-secondary,#4b5563);line-height:1.6;margin:0;white-space:pre-wrap}.problem-image{height:auto;margin-top:1rem;max-width:100%}.concept-note-single,.hint-single,.problem-full-view,.problem-image{border:1px solid #e5e7eb;border:1px solid var(--border-color,#e5e7eb);border-radius:8px}.concept-note-single,.hint-single,.problem-full-view{background:#fff;background:var(--bg-primary,#fff);padding:1.5rem}.concept-note-single h3,.hint-single h3,.problem-full-view h3{color:#111827;color:var(--text-primary,#111827);font-size:1.125rem;font-weight:600;margin:0 0 1rem}.concept-note-content,.hint-content,.problem-description{color:#4b5563;color:var(--text-secondary,#4b5563);line-height:1.7}.problem-meta{display:flex;gap:.5rem;margin-bottom:1rem}.problem-meta .badge{background-color:#f3f4f6;background-color:var(--bg-secondary,#f3f4f6);border-radius:9999px;color:#374151;color:var(--text-primary,#374151);display:inline-block;font-size:.75rem;font-weight:500;padding:.25rem .75rem}.view-saved-modal .modal-footer{background:#fff;background:var(--bg-primary,#fff);border-top:1px solid #e5e7eb;border-top:1px solid var(--border-color,#e5e7eb);padding:1rem 1.5rem}.footer-actions{display:flex;gap:.75rem;justify-content:flex-end}.footer-actions button{padding:.625rem 1.25rem}.saved-item-view-content .concept-notes-display,.saved-item-view-content .solution-display{border:1px solid #e5e7eb;border:1px solid var(--border-color,#e5e7eb);box-shadow:none}.saved-item-view-content .concept-notes-actions,.saved-item-view-content .solution-actions{display:none}@media (max-width:768px){.view-saved-modal{border-radius:0;height:100vh;max-height:100vh;max-width:100%;width:100%}.view-saved-modal .modal-body,.view-saved-modal .modal-footer,.view-saved-modal .modal-header{padding:1rem}.footer-actions{flex-direction:column-reverse}.footer-actions button{width:100%}.view-saved-modal .header-title{align-items:flex-start;flex-direction:column}}.confirmation-modal-overlay{align-items:center;animation:overlayFadeIn .2s ease-out;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0009;bottom:0;display:flex;justify-content:center;left:0;padding:1rem;position:fixed;right:0;top:0;z-index:2000}@keyframes overlayFadeIn{0%{opacity:0}to{opacity:1}}.confirmation-modal{animation:modalSlideUp .3s ease-out;background:#fff;border:1px solid #0f172a14;border-radius:20px;box-shadow:0 32px 64px -24px #0f172a59;max-width:480px;width:100%}@keyframes modalSlideUp{0%{opacity:0;transform:translateY(20px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.confirmation-modal__content{align-items:flex-start;display:flex;gap:1.25rem;padding:2rem 2rem 1.5rem}.confirmation-modal__icon{flex-shrink:0;font-size:2rem;line-height:1;margin-top:.25rem}.confirmation-modal__text{flex:1 1}.confirmation-modal__title{color:#0f172a;font-size:1.25rem;font-weight:700;line-height:1.3;margin:0 0 .75rem}.confirmation-modal__message{color:#64748b;font-size:.95rem;line-height:1.5;margin:0}.confirmation-modal__actions{display:flex;gap:.75rem;justify-content:flex-end;padding:0 2rem 2rem}.confirmation-modal__btn{border:none;border-radius:12px;cursor:pointer;font-size:.9rem;font-weight:600;min-width:80px;padding:.75rem 1.5rem;transition:all .2s ease;white-space:nowrap}.confirmation-modal__btn--cancel{background:#f8fafc;border:1px solid #e2e8f0;color:#475569}.confirmation-modal__btn--cancel:hover{background:#f1f5f9;border-color:#cbd5e1;color:#334155}.confirmation-modal__btn--confirm{box-shadow:0 4px 12px #00000026;color:#fff}.confirmation-modal__btn--confirm:hover{box-shadow:0 6px 16px #0003;transform:translateY(-1px)}.confirmation-modal__btn--danger{background:#dc2626}.confirmation-modal__btn--danger:hover{background:#b91c1c}.confirmation-modal__btn--primary{background:#3b82f6}.confirmation-modal__btn--primary:hover{background:#2563eb}.confirmation-modal__btn--warning{background:#f59e0b}.confirmation-modal__btn--warning:hover{background:#d97706}.confirmation-modal__btn:focus{ring:2px;ring-offset:2px;outline:none}.confirmation-modal__btn--cancel:focus{ring-color:#94a3b8}.confirmation-modal__btn--danger:focus{ring-color:#dc2626}.confirmation-modal__btn--primary:focus{ring-color:#3b82f6}.confirmation-modal__btn--warning:focus{ring-color:#f59e0b}@media (max-width:480px){.confirmation-modal{border-radius:16px;margin:0;max-width:none}.confirmation-modal__content{gap:1rem;padding:1.5rem 1.5rem 1rem}.confirmation-modal__actions{flex-direction:column-reverse;gap:.5rem;padding:0 1.5rem 1.5rem}.confirmation-modal__btn{width:100%}.confirmation-modal__title{font-size:1.125rem}.confirmation-modal__message{font-size:.9rem}}.notes-hub-page{background:linear-gradient(180deg,#f4f7fb,#fff);box-sizing:border-box;min-height:calc(100vh - 80px);padding:3rem clamp(1rem,4vw,2.5rem)}.notes-hub-layout{grid-gap:2.5rem;display:grid;gap:2.5rem;grid-template-columns:auto minmax(0,1fr);margin:0 auto;max-width:1200px}.notes-hub-main{gap:2rem}.notes-hub-header,.notes-hub-main{display:flex;flex-direction:column}.notes-hub-header{gap:1.5rem}.notes-hub-header h1{color:#0f172a;font-size:2.1rem;margin:0}.notes-hub-header p{color:#64748b;font-size:.95rem;margin:.4rem 0 0}.notes-hub-header-controls{align-items:center;display:flex;flex-wrap:wrap;gap:1rem}.notes-hub-search{flex:1 1;min-width:220px}.notes-hub-search input{border:1px solid #94a3b873;border-radius:16px;color:#1f2937;font-size:.95rem;padding:.7rem 1rem;transition:border .2s ease,box-shadow .2s ease;width:100%}.notes-hub-search input:focus{border-color:#f97316;box-shadow:0 0 0 3px #f973161f;outline:none}.notes-hub-actions{display:flex;gap:.75rem}.notes-hub-actions button{background:#fff;border:1px solid #94a3b866;border-radius:12px;color:#1f2937;cursor:pointer;font-weight:600;padding:.65rem 1.1rem;transition:all .2s ease}.notes-hub-actions button:hover{border-color:#f9731680;color:#c2410c}.notes-hub-actions .primary{background:#f97316;border:none;box-shadow:0 18px 32px -24px #f973168c;color:#fff}.notes-hub-actions .primary:hover{background:#ea580c}.notes-hub-starred{display:flex;flex-direction:column;gap:1rem}.notes-hub-section-header{align-items:baseline;color:#64748b;display:flex;font-size:.9rem;justify-content:space-between}.notes-hub-section-header h2{color:#0f172a;font-size:1.35rem;margin:0}.notes-hub-starred__list{display:flex;gap:1.5rem;overflow-x:auto;padding-bottom:.75rem;scroll-behavior:smooth}.notes-hub-grid{grid-gap:1.75rem;align-items:start;display:grid;gap:1.75rem;grid-template-columns:repeat(auto-fill,minmax(320px,1fr))}.notes-hub-empty{align-items:center;display:flex;justify-content:center;min-height:320px}.notes-hub-empty__card{background:#fff;border:1px solid #0f172a0f;border-radius:24px;box-shadow:0 26px 46px -32px #0f172a59;display:flex;flex-direction:column;gap:1rem;max-width:420px;padding:2.5rem;text-align:center}.notes-hub-empty__card h2{color:#0f172a;font-size:1.5rem;margin:0}.notes-hub-empty__card p{color:#64748b;font-size:.95rem;margin:0}.notes-hub-empty__card .primary{align-self:center;background:#f97316;border:none;border-radius:12px;color:#fff;cursor:pointer;font-weight:600;padding:.75rem 1.4rem}@media (max-width:1024px){.notes-hub-layout{grid-template-columns:1fr}}@media (max-width:600px){.notes-hub-page{padding-top:2.5rem}.notes-hub-header-controls{align-items:stretch;flex-direction:column}.notes-hub-actions{justify-content:stretch;width:100%}.notes-hub-actions .primary,.notes-hub-actions button{flex:1 1}}.modal-overlay{align-items:center;background:#0009;bottom:0;display:flex;justify-content:center;left:0;padding:1rem;position:fixed;right:0;top:0;z-index:1000}.modal-content{animation:modalSlideIn .2s ease-out;background:#fff;border-radius:16px;box-shadow:0 32px 64px -32px #0f172a66;max-height:90vh;max-width:500px;overflow-y:auto;width:100%}@keyframes modalSlideIn{0%{opacity:0;transform:translateY(-20px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.modal-header{align-items:center;display:flex;justify-content:space-between;padding:1.5rem 1.5rem 0}.modal-header h2{color:#0f172a;font-size:1.5rem;font-weight:600;margin:0}.modal-close{align-items:center;background:none;border:none;border-radius:8px;color:#64748b;cursor:pointer;display:flex;font-size:1.5rem;height:2.5rem;justify-content:center;padding:.5rem;transition:all .2s ease;width:2.5rem}.modal-close:hover{background:#f1f5f9;color:#334155}.modal-form{padding:1.5rem}.form-group{margin-bottom:1.25rem}.form-group label{color:#374151;display:block;font-size:.9rem;font-weight:500;margin-bottom:.5rem}.form-group input,.form-group textarea{border:1px solid #d1d5db;border-radius:8px;box-sizing:border-box;font-size:.95rem;padding:.75rem 1rem;transition:border-color .2s ease,box-shadow .2s ease;width:100%}.form-group input:focus,.form-group textarea:focus{border-color:#f97316;box-shadow:0 0 0 3px #f973161a;outline:none}.form-group textarea{min-height:80px;resize:vertical}.modal-actions{display:flex;gap:.75rem;justify-content:flex-end;padding-top:1rem}.btn-primary{background:#f97316;border:none;border-radius:8px;color:#fff;cursor:pointer;font-weight:600;padding:.75rem 1.5rem;transition:background-color .2s ease}.btn-primary:hover{background:#ea580c}.btn-secondary{background:#fff;border:1px solid #d1d5db;border-radius:8px;color:#374151;cursor:pointer;font-weight:600;padding:.75rem 1.5rem;transition:all .2s ease}.btn-secondary:hover{background:#f9fafb;border-color:#9ca3af}.save-item-modal{max-width:600px}.modal-body{padding:1.5rem}.save-item-options{grid-gap:1rem;display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}.save-item-option{align-items:center;background:#fff;border:1px solid #e5e7eb;border-radius:12px;cursor:pointer;display:flex;gap:1rem;padding:1.25rem;text-align:left;transition:all .2s ease}.save-item-option:hover{background:#fef7f0;border-color:#f97316;box-shadow:0 8px 24px -8px #f9731626;transform:translateY(-1px)}.option-icon{align-items:center;background:#f3f4f6;border-radius:8px;display:flex;flex-shrink:0;font-size:1.5rem;height:3rem;justify-content:center;width:3rem}.option-content h3{color:#111827;font-size:1rem;font-weight:600;margin:0 0 .25rem}.option-content p{color:#6b7280;font-size:.875rem;margin:0}@media (max-width:600px){.modal-content{border-radius:0;margin:0;max-height:100vh}.modal-header{padding:1rem 1rem 0}.modal-body,.modal-form{padding:1rem}.modal-actions{flex-direction:column-reverse}.modal-actions button{width:100%}.save-item-options{grid-template-columns:1fr}.save-item-option{padding:1rem}}.notes-hub-search-and-filters{align-items:center;display:flex;flex:1 1;gap:1rem}.notes-hub-filters{position:relative}.filter-toggle{align-items:center;background:#fff;border:1px solid #d1d5db;border-radius:6px;color:#374151;cursor:pointer;display:flex;font-size:.9rem;gap:.5rem;padding:.5rem 1rem;transition:all .2s ease}.filter-toggle:hover{background:#f9fafb;border-color:#9ca3af}.filter-toggle.active{background:#3b82f6;border-color:#3b82f6;color:#fff}.filter-indicator{color:#ef4444;font-size:1.2rem;font-weight:700;line-height:1}.filter-toggle.active .filter-indicator{color:#fca5a5}.filter-dropdown{background:#fff;border:1px solid #d1d5db;border-radius:8px;box-shadow:0 10px 25px #0000001a;min-width:600px;padding:1rem;position:absolute;right:0;top:calc(100% + .5rem);z-index:1000}.filter-row{align-items:center;display:flex;flex-wrap:wrap;gap:.75rem}.filter-row select{background:#fff;border:1px solid #d1d5db;border-radius:4px;cursor:pointer;flex:1 1;font-size:.9rem;min-width:120px;padding:.5rem}.filter-row select:focus{border-color:#3b82f6;box-shadow:0 0 0 3px #3b82f61a;outline:none}.clear-filters{background:#ef4444;border:none;border-radius:4px;color:#fff;cursor:pointer;font-size:.9rem;padding:.5rem 1rem;transition:background .2s ease}.clear-filters:hover{background:#dc2626}@media (max-width:768px){.notes-hub-search-and-filters{align-items:stretch;flex-direction:column;gap:.75rem}.filter-dropdown{left:0;min-width:auto;right:0}.filter-row{align-items:stretch;flex-direction:column}.filter-row select{min-width:auto}}.empty-state-primitive{align-items:center;color:var(--color-ink);display:flex;flex-direction:column;justify-content:center;text-align:center;width:100%}.empty-state-small{gap:1rem;padding:2rem 1rem}.empty-state-medium{gap:1.5rem;padding:3rem 1.5rem}.empty-state-large{gap:2rem;padding:4rem 2rem}.empty-state-card{background-color:#fff;border:1px solid #f3f4f6;border-radius:var(--border-radius-lg);box-shadow:var(--shadow-sm)}.empty-state-subtle{background-color:var(--color-off-white);border-radius:var(--border-radius-md)}.empty-state-minimal{gap:1rem;padding:1.5rem 1rem}.empty-state-icon{align-items:center;color:var(--color-cool-gray);display:flex;justify-content:center;opacity:.8}.empty-state-small .empty-state-icon{font-size:2rem}.empty-state-medium .empty-state-icon{font-size:3rem}.empty-state-large .empty-state-icon{font-size:4rem}.empty-state-icon svg{height:1em;width:1em}.empty-state-content{display:flex;flex-direction:column;gap:.5rem;max-width:400px}.empty-state-title{color:var(--color-ink);font-family:var(--font-heading);font-weight:600;line-height:1.3;margin:0}.empty-state-small .empty-state-title{font-size:1.125rem}.empty-state-medium .empty-state-title{font-size:1.25rem}.empty-state-large .empty-state-title{font-size:1.5rem}.empty-state-message{color:#6b7280;font-size:1rem;line-height:1.5;margin:0}.empty-state-small .empty-state-message{font-size:.875rem}.empty-state-large .empty-state-message{font-size:1.125rem}.empty-state-action{display:flex;flex-wrap:wrap;gap:.75rem;justify-content:center}.empty-state-error,.empty-state-error .empty-state-icon,.empty-state-error .empty-state-title{color:#ef4444}.empty-state-warning,.empty-state-warning .empty-state-icon,.empty-state-warning .empty-state-title{color:#f59e0b}.empty-state-success,.empty-state-success .empty-state-icon,.empty-state-success .empty-state-title{color:#10b981}.empty-state-info,.empty-state-info .empty-state-icon,.empty-state-info .empty-state-title{color:#3b82f6}.empty-state-loading{opacity:.7}.empty-state-loading .empty-state-icon{animation:empty-state-pulse 2s ease-in-out infinite}@keyframes empty-state-pulse{0%,to{opacity:.8}50%{opacity:.4}}.empty-state-full-height{justify-content:center;min-height:50vh}.empty-state-full-screen{justify-content:center;min-height:80vh}.empty-state-compact{gap:1rem;padding:1.5rem 1rem}.empty-state-compact .empty-state-icon{font-size:2rem}.empty-state-compact .empty-state-title{font-size:1rem}.empty-state-compact .empty-state-message{font-size:.875rem}.empty-state-horizontal{align-items:center;flex-direction:row;gap:1.5rem;justify-content:flex-start;text-align:left}.empty-state-horizontal .empty-state-content{flex:1 1;text-align:left}.empty-state-horizontal .empty-state-icon{flex-shrink:0}.empty-state-horizontal .empty-state-action{justify-content:flex-start}.empty-state-link{text-decoration:none}@media (max-width:640px){.empty-state-large{gap:1.5rem;padding:3rem 1.5rem}.empty-state-medium{gap:1.25rem;padding:2.5rem 1rem}.empty-state-large .empty-state-icon{font-size:3rem}.empty-state-large .empty-state-title{font-size:1.25rem}.empty-state-large .empty-state-message{font-size:1rem}.empty-state-horizontal{flex-direction:column;text-align:center}.empty-state-horizontal .empty-state-content{text-align:center}.empty-state-horizontal .empty-state-action{justify-content:center}}@media (prefers-color-scheme:dark){.empty-state-card{background-color:var(--color-ink);border-color:#374151}.empty-state-subtle{background-color:#1f2937}}.study-mode-session{background:#fffffffa;border:1px solid #0f172a0f;border-radius:28px;box-shadow:0 32px 52px -34px #0f172a73;display:flex;flex-direction:column;gap:2.5rem;padding:clamp(2rem,5vw,3rem)}.session-header{align-items:flex-start;display:flex;flex-wrap:wrap;gap:1.5rem;justify-content:space-between}.session-intro{display:flex;flex-direction:column;gap:.65rem;max-width:480px}.session-eyebrow{color:#0f172a8c;font-size:.8rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase}.session-intro h2{color:#0f172a;font-size:clamp(1.9rem,2.8vw,2.4rem);margin:0}.session-intro p{color:#0f172aad;font-size:1.02rem;line-height:1.6;margin:0}.session-actions{align-items:center;display:flex;flex-wrap:wrap;gap:.75rem}.session-meta{grid-gap:1.75rem;display:grid;gap:1.75rem;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}.session-meta-tile{background:#f8f9fcbf;border:1px solid #0f172a14;border-radius:22px;box-shadow:0 22px 45px -32px #0f172a59;display:flex;flex-direction:column;gap:.75rem;padding:1.75rem}.meta-label{color:#0f172a8c;font-size:.75rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase}.session-meta-tile strong{color:#0f172a;font-size:1.2rem}.session-meta-tile p{color:#0f172ab3;font-size:.96rem;line-height:1.55;margin:0}.meta-tags{display:flex;flex-wrap:wrap;gap:.5rem}.meta-tags span{background:#f973161f;border-radius:999px;color:#f97316;font-size:.8rem;font-weight:600;padding:.35rem .75rem}.meta-support{color:#0f172a9e;font-size:.92rem;margin:0}.session-meta-tile ul{color:#0f172ab3;display:flex;flex-direction:column;font-size:.95rem;gap:.45rem;margin:0;padding-left:1.25rem}.session-variants{display:flex;flex-direction:column;gap:1.75rem}.variants-heading{align-items:flex-start;display:flex;gap:1.5rem;justify-content:space-between}.variants-heading h3{color:#0f172a;font-size:1.6rem;margin:0}.variants-heading p{color:#0f172aa6;font-size:.98rem;margin:.35rem 0 0;max-width:560px}.variant-count{background:#0f172a14;border-radius:999px;color:#0f172a;font-size:.85rem;font-weight:600;padding:.4rem .95rem;white-space:nowrap}.session-variants-grid{grid-gap:1.5rem;display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}.session-variant-card{background:#fffffff5;border:1px solid #0f172a14;border-radius:22px;box-shadow:0 24px 48px -32px #0f172a66;display:flex;flex-direction:column;gap:1.25rem;padding:1.75rem;transition:transform .25s ease,box-shadow .25s ease}.session-variant-card:hover{box-shadow:0 34px 56px -30px #f9731659;transform:translateY(-6px)}.variant-header{display:flex;gap:1rem}.variant-index{align-items:center;background:#f973161f;border-radius:14px;color:#f97316;display:flex;flex-shrink:0;font-size:1.1rem;font-weight:700;height:44px;justify-content:center;width:44px}.variant-header h4{color:#0f172a;font-size:1.2rem;margin:0}.variant-header p{color:#0f172ab3;font-size:.95rem;line-height:1.55;margin:.35rem 0 0}.variant-body{grid-gap:.75rem;display:grid;gap:.75rem}.variant-detail{display:flex;flex-direction:column;gap:.25rem}.detail-label{color:#0f172a80;font-size:.75rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase}.detail-value{color:#0f172abf;font-size:.98rem}.variant-actions{display:flex;flex-wrap:wrap;gap:.75rem}.variant-hints-preview{border-top:1px solid #0f172a14;display:flex;flex-direction:column;gap:.75rem;margin-top:.5rem;padding-top:.75rem}.hints-list{display:flex;flex-direction:column;gap:.5rem;margin:0;padding-left:1.25rem}.hints-list li{color:#0f172ab8;font-size:.92rem;line-height:1.55}.study-mode-generator-placeholder{align-items:center;background:#f8f9fc99;border:2px dashed #0f172a1f;border-radius:22px;color:#0f172a99;display:flex;flex-direction:column;gap:1.25rem;justify-content:center;padding:3rem 1.5rem;text-align:center}.placeholder-actions{display:flex;gap:.75rem}@media (max-width:768px){.session-header{align-items:flex-start;flex-direction:column}.session-actions{width:100%}.session-actions .btn-primitive{flex:1 1}.variants-heading{align-items:flex-start;flex-direction:column}.variant-count{align-self:flex-start}}@media (max-width:520px){.study-mode-session{border-radius:22px;padding:clamp(1.75rem,5vw,2.25rem)}.session-meta-tile,.session-variant-card{border-radius:18px}.session-actions{flex-direction:column}.session-actions .btn-primitive{width:100%}.variant-actions{flex-direction:column}.variant-actions .btn-primitive{width:100%}}.variants-loading-container{align-items:center;background:linear-gradient(145deg,#f9731605,#f973160d);border:2px dashed #f9731626;border-radius:20px;display:flex;justify-content:center;min-height:400px;padding:3rem}.variants-loading-content{align-items:center;animation:slideInFadeIn .7s ease-out;display:flex;flex-direction:column;gap:2rem;text-align:center}.variants-loading-text{display:flex;flex-direction:column;gap:.75rem;max-width:480px}.variants-loading-text h3{color:#0f172a;font-size:1.5rem;font-weight:700;letter-spacing:-.02em;margin:0}.variants-loading-text p{color:#64748b;font-size:1rem;line-height:1.7;margin:0}@keyframes slideInFadeIn{0%{opacity:0;transform:translateY(30px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.variants-loading-container .spinner-primitive{animation:slideInFadeIn .7s ease-out,glowPulse 2.5s ease-in-out infinite}@keyframes glowPulse{0%,to{filter:drop-shadow(0 0 8px rgba(249,115,22,.3));transform:scale(1)}50%{filter:drop-shadow(0 0 16px rgba(249,115,22,.5));transform:scale(1.08)}}.study-mode-page{--page-vertical-pad:clamp(1.75rem,5vh,3rem);--page-horizontal-pad:clamp(1.25rem,6vw,4rem);background:linear-gradient(160deg,#f5f7fb,#f8f9fb 45%,#fff);box-sizing:border-box;min-height:calc(100vh - 80px);padding:var(--page-vertical-pad) var(--page-horizontal-pad)}.study-mode-shell{display:flex;flex-direction:column;gap:2.5rem;margin:0 auto;max-width:1240px}.study-mode-hero{grid-gap:clamp(1.75rem,4vw,2.75rem);background:linear-gradient(150deg,#fffffff2,#fffc 45%,#f8f9fbe6);border:1px solid #0f172a0f;border-radius:28px;box-shadow:0 32px 50px -36px #0f172a73;display:grid;gap:clamp(1.75rem,4vw,2.75rem);grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);overflow:hidden;padding:clamp(2rem,5vw,3rem);position:relative}.study-mode-hero:after{background:radial-gradient(circle at 20% 20%,#f9731614,#0000 45%);content:"";inset:0;pointer-events:none;position:absolute}.hero-copy{display:flex;flex-direction:column;gap:1.25rem;position:relative;z-index:1}.hero-eyebrow{color:#0c1e3ab3;font-size:.85rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase}.hero-copy h1{color:#0f172a;font-size:clamp(2rem,3vw,2.6rem);line-height:1.15;margin:0}.hero-copy p{color:#0f172ab8;font-size:1.05rem;line-height:1.6;margin:0;max-width:520px}.hero-actions{display:flex;flex-wrap:wrap;gap:.75rem}.hero-summary{grid-gap:1rem;align-content:flex-start;display:grid;gap:1rem;position:relative;z-index:1}.summary-tile{background:#ffffffe6;border:1px solid #0f172a0f;border-radius:20px;box-shadow:0 16px 38px -28px #0f172a66;display:flex;flex-direction:column;gap:.5rem;padding:1.5rem}.summary-label{color:#0f172a8c;font-size:.75rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase}.summary-tile strong{color:#0f172a;font-size:1.1rem}.summary-tile p{color:#0f172ab3;font-size:.95rem;margin:0}.study-mode-stepper{grid-gap:1rem;display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.step-item{align-items:center;background:#ffffffbf;border:1px solid #0f172a14;border-radius:18px;box-shadow:0 16px 30px -30px #0f172a66;display:flex;gap:1rem;padding:1rem 1.25rem;transition:transform .2s ease,box-shadow .2s ease}.step-item.is-active{border-color:#f9731680;box-shadow:0 18px 32px -28px #f9731673;transform:translateY(-4px)}.step-item.is-complete{border-color:#10b98166}.step-index{align-items:center;background:#f973161f;border-radius:14px;color:#f97316;display:flex;font-size:1.05rem;font-weight:700;height:42px;justify-content:center;width:42px}.step-item.is-complete .step-index{background:#10b9811f;color:#0f766e}.step-meta{display:flex;flex-direction:column;gap:.25rem}.step-label{color:#0f172a;font-weight:600;text-transform:capitalize}.step-description{color:#0f172a9e;font-size:.9rem}.study-mode-body{gap:2.5rem}.panel,.study-mode-body{display:flex;flex-direction:column}.panel{background:#fffffff5;border:1px solid #0f172a0f;border-radius:26px;box-shadow:0 28px 48px -34px #0f172a73;gap:2rem;padding:clamp(2rem,4vw,2.75rem)}.panel-heading{display:flex;flex-direction:column;gap:.65rem}.panel-heading h2{color:#0f172a;font-size:1.8rem;margin:0}.panel-heading p{color:#0f172aa6;font-size:1.02rem;margin:0;max-width:640px}.panel-heading-with-actions{align-items:center;flex-direction:row;gap:1.5rem;justify-content:space-between}.panel-heading-with-actions>div{display:flex;flex-direction:column;gap:.65rem}.mode-grid{grid-gap:1.5rem;display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}.mode-card{background:#fffffffa;border:1px solid #0f172a14;border-radius:22px;box-shadow:0 22px 45px -30px #0f172a59;display:flex;flex-direction:column;gap:1rem;padding:1.75rem;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}.mode-card:hover{box-shadow:0 32px 50px -28px #0f172a73;transform:translateY(-6px)}.mode-card.is-selected{border-color:#f9731699;box-shadow:0 34px 56px -28px #f9731659}.mode-card-header h3{color:#0f172a;font-size:1.35rem;margin:0}.mode-tagline{color:#0f172aa6;font-weight:500;margin:.3rem 0 0}.mode-description{color:#0f172ab3;line-height:1.55;margin:0}.mode-highlights{color:#0f172ab3;display:flex;flex-direction:column;font-size:.95rem;gap:.45rem;margin:0;padding-left:1.25rem}.notes-grid{grid-gap:1.5rem;display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}.note-card{background:#fffffff5;border:1px solid #0f172a14;border-radius:22px;box-shadow:0 20px 42px -30px #0f172a4d;cursor:pointer;display:flex;flex-direction:column;gap:.85rem;padding:1.75rem;text-align:left;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}.note-card:hover{box-shadow:0 30px 48px -28px #0f172a73;transform:translateY(-6px)}.note-card.is-selected{border-color:#f9731699;box-shadow:0 32px 52px -30px #f9731659}.note-card-header{align-items:center;color:#0f172a99;display:flex;font-size:.85rem;gap:.75rem;justify-content:space-between;letter-spacing:.04em;text-transform:uppercase}.note-chip{background:#0f172a12;border-radius:999px;font-weight:600;padding:.35rem .75rem}.note-review{font-weight:500}.note-title{color:#0f172a;font-size:1.25rem;margin:0}.note-excerpt{color:#0f172aad;line-height:1.55;margin:0;min-height:3.5rem}.note-tags{display:flex;flex-wrap:wrap;gap:.45rem}.note-tags span{background:#f973161a;border-radius:999px;font-size:.8rem;padding:.4rem .75rem}.note-cta,.note-tags span{color:#f97316;font-weight:600}.note-cta{margin-top:auto}.panel-actions{display:flex;flex-wrap:wrap;gap:1rem;justify-content:flex-end}.study-mode-footer{align-items:center;background:#fffffff2;border:1px solid #0f172a0d;border-radius:20px;box-shadow:0 16px 32px -30px #0f172a59;display:flex;gap:1.5rem;justify-content:space-between;padding:1.25rem 1.75rem}.footer-status{display:flex;flex-direction:column;gap:.35rem}.status-label{color:#0f172a8c;font-size:.75rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase}.study-mode-footer p{color:#0f172ab3;margin:0}@media (max-width:1024px){.study-mode-hero{grid-template-columns:1fr;padding:clamp(1.75rem,4vw,2.5rem)}.hero-summary{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.panel{padding:clamp(1.75rem,4.5vw,2.5rem)}}@media (max-width:768px){.study-mode-shell{gap:2rem}.hero-actions{align-items:flex-start;flex-direction:column}.study-mode-stepper{grid-template-columns:1fr}.panel-heading-with-actions{align-items:flex-start;flex-direction:column}.notes-grid{grid-template-columns:1fr}}@media (max-width:520px){.study-mode-page{--page-horizontal-pad:1rem}.study-mode-hero{border-radius:22px}.study-mode-footer{align-items:flex-start;flex-direction:column}.panel{border-radius:20px}}.elegant-loading-container{align-items:center;display:flex;justify-content:center;min-height:60vh;padding:3rem}.loading-content{align-items:center;animation:fadeInUp .6s ease-out;gap:2rem;text-align:center}.loading-content,.loading-text{display:flex;flex-direction:column}.loading-text{gap:.75rem;max-width:400px}.loading-text h3{color:#0f172a;font-size:1.5rem;font-weight:700;letter-spacing:-.02em;margin:0}.loading-text p{color:#64748b;font-size:1rem;line-height:1.6;margin:0}.elegant-loading-container .spinner-primitive{animation:fadeInUp .6s ease-out,breathe 3s ease-in-out infinite}@keyframes breathe{0%,to{opacity:1;transform:scale(1)}50%{opacity:.9;transform:scale(1.05)}}.about-us-page{background:var(--color-bg-primary);color:var(--color-text-primary);min-height:100vh;padding:var(--spacing-6xl) 0}.about-header{margin-bottom:var(--spacing-6xl);padding:0 var(--spacing-xl);text-align:center}.page-title{color:var(--color-text-primary);font-size:clamp(2.5rem,5vw,4rem);font-weight:var(--font-weight-extrabold);letter-spacing:-.02em;line-height:var(--line-height-tight);margin-bottom:var(--spacing-xl)}.page-subtitle{color:var(--color-text-secondary);font-size:clamp(1.1rem,2vw,1.375rem);font-weight:var(--font-weight-normal);line-height:var(--line-height-relaxed);margin:0 auto;max-width:600px}.about-content{margin:0 auto;max-width:1200px;padding:0 var(--spacing-xl)}.founder-section{margin-bottom:var(--spacing-6xl)}.founder-content{grid-gap:var(--spacing-6xl);align-items:start;display:grid;gap:var(--spacing-6xl);grid-template-columns:1fr 1fr}.founder-text{padding-right:var(--spacing-2xl)}.section-title{color:var(--color-text-primary);font-size:clamp(2rem,3vw,2.75rem);font-weight:var(--font-weight-bold);line-height:var(--line-height-tight);margin-bottom:var(--spacing-lg)}.founder-name{color:var(--color-orange);font-size:clamp(1.5rem,2.5vw,2rem);font-weight:var(--font-weight-semibold);line-height:var(--line-height-normal);margin-bottom:var(--spacing-4xl)}.founder-story{display:flex;flex-direction:column;gap:var(--spacing-4xl)}.story-section{border-left:3px solid var(--color-orange-light);padding-left:var(--spacing-3xl);transition:all var(--duration-normal) var(--ease-out)}.story-section:hover{background:var(--color-orange-light);border-left-color:var(--color-orange);border-radius:var(--border-radius-md);margin:0 calc(var(--spacing-xl)*-1);padding:var(--spacing-xl) var(--spacing-3xl)}.story-title{color:var(--color-text-primary);font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);line-height:var(--line-height-normal)}.story-text,.story-title{margin-bottom:var(--spacing-lg)}.story-text{color:var(--color-text-secondary);font-size:var(--font-size-base);line-height:var(--line-height-relaxed)}.lynae-links{display:flex;flex-direction:column;gap:var(--spacing-md);margin-top:var(--spacing-xl)}.external-link{align-items:center;color:var(--color-orange);display:inline-flex;font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);gap:var(--spacing-sm);text-decoration:none;transition:all var(--duration-normal) var(--ease-out)}.external-link:hover{color:var(--color-orange-hover);text-decoration:underline;transform:translateX(4px)}.external-link:after{content:"↗";font-size:var(--font-size-xs);opacity:.7}.founder-image{border-radius:var(--border-radius-2xl);box-shadow:var(--shadow-xl);overflow:hidden;position:relative;transition:all var(--duration-normal) var(--ease-out)}.founder-image:hover{box-shadow:var(--shadow-2xl);transform:translateY(-4px)}.founder-photo{display:block;height:auto;max-height:600px;object-fit:cover;object-position:center;width:100%}.mission-section{margin-top:var(--spacing-6xl)}.mission-card{background:var(--color-bg-secondary);border:1px solid var(--color-border-light);border-radius:var(--border-radius-xl);box-shadow:var(--shadow-lg);margin:0 auto;max-width:800px;overflow:hidden;padding:var(--spacing-5xl);position:relative;text-align:center}.mission-card:before{background:linear-gradient(90deg,var(--color-orange) 0,var(--color-orange-hover) 100%);content:"";height:4px;left:0;position:absolute;right:0;top:0}.mission-title{color:var(--color-text-primary);font-size:clamp(1.75rem,3vw,2.25rem);font-weight:var(--font-weight-bold);line-height:var(--line-height-tight);margin-bottom:var(--spacing-3xl)}.mission-text{color:var(--color-text-secondary);font-size:var(--font-size-lg);line-height:var(--line-height-relaxed);margin:0 auto;max-width:600px}@media (max-width:1024px){.founder-content{gap:var(--spacing-5xl);grid-template-columns:1fr}.founder-text{order:2;padding-right:0}.founder-image{order:1}.founder-photo{max-height:400px}}@media (max-width:768px){.about-us-page{padding:var(--spacing-4xl) 0}.about-header{margin-bottom:var(--spacing-4xl)}.about-content,.about-header{padding:0 var(--spacing-lg)}.founder-content{gap:var(--spacing-4xl)}.story-section{padding-left:var(--spacing-2xl)}.story-section:hover{margin:0 calc(var(--spacing-lg)*-1);padding:var(--spacing-lg) var(--spacing-2xl)}.mission-card{margin:0 var(--spacing-lg);padding:var(--spacing-4xl) var(--spacing-3xl)}.founder-photo{max-height:350px}}@media (max-width:640px){.about-content,.about-header{padding:0 var(--spacing-md)}.story-section{border-left-width:2px;padding-left:var(--spacing-xl)}.story-section:hover{margin:0 calc(var(--spacing-md)*-1);padding:var(--spacing-md) var(--spacing-xl)}.mission-card{margin:0 var(--spacing-md);padding:var(--spacing-3xl) var(--spacing-2xl)}.lynae-links{gap:var(--spacing-sm)}.founder-photo{max-height:300px}}@media (max-width:480px){.about-us-page{padding:var(--spacing-3xl) 0}.about-header{margin-bottom:var(--spacing-3xl)}.founder-content{gap:var(--spacing-3xl)}.mission-card{margin:0 var(--spacing-sm);padding:var(--spacing-2xl) var(--spacing-xl)}.founder-photo{max-height:250px}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.about-us-page{animation:fadeInUp .6s ease-out}.founder-section,.mission-section{animation:fadeInUp .6s ease-out .2s both}.external-link:focus{border-radius:var(--border-radius-sm);outline:2px solid var(--color-orange);outline-offset:2px}.founder-photo:focus{outline:2px solid var(--color-orange);outline-offset:4px}.select-container{display:flex;flex-direction:column;gap:.5rem;position:relative;width:100%}.select-label{align-items:center;color:var(--color-ink);display:flex;font-family:var(--font-body);font-size:.875rem;font-weight:600;gap:.25rem}.select-required{color:#ef4444;font-weight:700}.select-wrapper{position:relative;width:100%}.select-primitive{align-items:center;background-color:#fff;border:2px solid var(--color-cool-gray);border-radius:var(--border-radius-md);color:var(--color-ink);cursor:pointer;display:flex;font-family:var(--font-body);font-size:1rem;gap:.5rem;justify-content:space-between;min-height:48px;outline:none;padding:.75rem 1rem;transition:all .2s ease-in-out;-webkit-user-select:none;user-select:none;width:100%}.select-primitive:hover:not(.select-disabled){border-color:#9ca3af}.select-open,.select-primitive:focus{border-color:var(--color-orange);box-shadow:0 0 0 3px #f973161a}.select-value{flex:1 1;overflow:hidden;text-align:left;text-overflow:ellipsis;white-space:nowrap}.select-placeholder{color:#9ca3af}.select-has-value{color:var(--color-ink)}.select-indicators{align-items:center;display:flex;flex-shrink:0;gap:.25rem}.select-clear{align-items:center;background:none;border:none;border-radius:50%;color:#9ca3af;cursor:pointer;display:flex;font-size:1.25rem;height:1.5rem;justify-content:center;line-height:1;padding:.25rem;transition:all .2s ease-in-out;width:1.5rem}.select-clear:hover{background-color:#f3f4f6;color:var(--color-ink)}.select-arrow{align-items:center;color:#9ca3af;display:flex;font-size:.75rem;justify-content:center;transition:transform .2s ease-in-out}.select-arrow-up{transform:rotate(180deg)}.select-dropdown{background-color:#fff;border:2px solid var(--color-orange);border-radius:0 0 var(--border-radius-md) var(--border-radius-md);border-top:none;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;display:flex;flex-direction:column;left:0;max-height:200px;overflow:hidden;position:absolute;right:0;top:100%;z-index:1000}.select-search{border-bottom:1px solid #e5e7eb;padding:.5rem}.select-search-input{border:1px solid var(--color-cool-gray);border-radius:var(--border-radius-sm);font-size:.875rem;outline:none;padding:.5rem .75rem;transition:border-color .2s ease-in-out;width:100%}.select-search-input:focus{border-color:var(--color-orange)}.select-options{flex:1 1;list-style:none;margin:0;overflow-y:auto;padding:0}.select-option{align-items:center;color:var(--color-ink);cursor:pointer;display:flex;font-size:1rem;gap:.5rem;justify-content:space-between;padding:.75rem 1rem;transition:background-color .2s ease-in-out}.select-option-focused,.select-option:hover{background-color:#f9fafb}.select-option-selected{background-color:#f973161a;color:var(--color-orange);font-weight:600}.select-option-selected.select-option-focused,.select-option-selected:hover{background-color:#f9731626}.select-option-label{flex:1 1;overflow:hidden;text-align:left;text-overflow:ellipsis;white-space:nowrap}.select-option-check{color:var(--color-orange);flex-shrink:0;font-size:.75rem}.select-no-options{color:#9ca3af;font-style:italic;padding:.75rem 1rem;text-align:center}.select-error{border-color:#ef4444}.select-error.select-open,.select-error:focus{border-color:#ef4444;box-shadow:0 0 0 3px #ef44441a}.select-error-message{align-items:center;color:#ef4444;display:flex;font-size:.875rem;font-weight:500;gap:.25rem}.select-error-message:before{content:"⚠";font-size:.75rem}.select-disabled{background-color:#f9fafb;color:#9ca3af;cursor:not-allowed;opacity:.7}.select-disabled .select-value{color:#9ca3af}.select-disabled .select-arrow{color:#d1d5db}.select-multiple .select-value{align-items:center;display:flex;flex-wrap:wrap;gap:.25rem}.select-tag{background-color:var(--color-orange);border-radius:var(--border-radius-sm);font-size:.75rem;font-weight:600;gap:.25rem;padding:.25rem .5rem}.select-tag,.select-tag-remove{align-items:center;color:#fff;display:flex}.select-tag-remove{background:none;border:none;border-radius:50%;cursor:pointer;font-size:.875rem;height:1rem;justify-content:center;line-height:1;padding:0;width:1rem}.select-tag-remove:hover{background-color:#fff3}.select-small{font-size:.875rem;min-height:40px;padding:.5rem .75rem}.select-large{font-size:1.125rem;min-height:56px;padding:1rem 1.25rem}@media (max-width:640px){.select-dropdown{max-height:160px}.select-option,.select-primitive{font-size:.9375rem;padding:.625rem .875rem}.select-error-message,.select-label{font-size:.8125rem}}@media (prefers-color-scheme:dark){.select-primitive{background-color:var(--color-ink);border-color:#4b5563;color:var(--color-off-white)}.select-dropdown{background-color:var(--color-ink);border-color:var(--color-orange)}.select-option-focused,.select-option:hover,.select-search-input{background-color:#374151}.select-search-input{border-color:#4b5563;color:var(--color-off-white)}}.concept-notes-page{background:linear-gradient(180deg,#f5f5ff,#fff 45%,#fff);display:flex;flex-direction:column;gap:2rem;min-height:calc(100vh - 80px);padding:clamp(2rem,4vw,3.5rem) clamp(1.5rem,5vw,4rem)}.concept-notes-hero{max-width:720px}.concept-notes-hero h1{color:#1f2937;font-size:clamp(2rem,4vw,2.75rem);font-weight:700;margin-bottom:.75rem}.concept-notes-hero p{color:#4b5563;font-size:1.05rem;line-height:1.7}.concept-notes-controls{box-shadow:0 24px 48px -28px #4f46e540;display:flex;flex-direction:column;gap:1.5rem;padding:clamp(1.5rem,3vw,2.25rem)}.controls-header h2{color:#1f2937;font-size:1.35rem;font-weight:600;margin:0 0 .35rem}.controls-header p{color:#6b7280;line-height:1.6;margin:0}.controls-grid{grid-gap:1.5rem;display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.control-group{display:flex;flex-direction:column;gap:.6rem}.control-group label{color:#111827;font-size:.95rem;font-weight:600}.depth-toggle{background:#ede9fe80;border:1px solid #7c3aed2e;border-radius:14px;color:#4c1d95;font-weight:600;min-height:52px}.depth-toggle:hover{background:#ede9febf}@media (max-width:768px){.concept-notes-page{padding:clamp(1.5rem,5vw,2.25rem)}.concept-notes-hero h1{font-size:2rem}}.app-header{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background-color:#fffffff2;border-bottom:1px solid #e5e7ebcc;box-shadow:0 1px 3px #0000001a;padding:1rem 2rem;position:-webkit-sticky;position:sticky;top:0;transition:all .3s cubic-bezier(.4,0,.2,1);z-index:10}.app-header:hover{background-color:#fffffffa;box-shadow:0 4px 12px #00000026}.header-container{justify-content:space-between;margin:0 auto;max-width:1200px;position:relative}.header-container,.logo{align-items:center;display:flex}.logo{flex-shrink:0;text-decoration:none}.logo-container{align-items:center;border-radius:.5rem;display:flex;justify-content:center;padding:.25rem;transition:all .3s cubic-bezier(.4,0,.2,1)}.logo-container:hover{background:#00000005;transform:translateY(-2px) scale(1.02)}.logo-icon{align-items:center;background:#0000;border-radius:50%;box-shadow:0 2px 8px #00000026;display:flex;height:36px;justify-content:center;overflow:hidden;position:relative;transition:all .3s cubic-bezier(.4,0,.2,1);width:36px}.logo-icon img{border-radius:50%;display:block;height:100%;object-fit:cover;width:100%}.logo-container:hover .logo-icon{box-shadow:0 6px 20px #00000040;transform:rotate(5deg)}.logo-icon svg{color:#fff;font-size:18px}.logo-text{color:#1a1a1a;font-size:1.1rem;font-weight:700;letter-spacing:-.025em;margin-left:.75rem;position:relative;transition:all .3s cubic-bezier(.4,0,.2,1);z-index:1}.logo-container:hover .logo-text{color:#374151;text-shadow:0 2px 4px #0000001a}.nav-links{display:flex;gap:1.25rem;left:50%;pointer-events:none;position:absolute;transform:translateX(-50%);width:-webkit-fit-content;width:fit-content;z-index:0}.nav-link,.nav-links .nav-link{pointer-events:auto}.nav-link{align-items:center;background-color:initial!important;border:none!important;border-radius:.5rem;box-sizing:border-box;color:#4b5563!important;cursor:pointer;display:inline-flex;font-size:.875rem;font-weight:500;justify-content:center;line-height:1;overflow:hidden;padding:.5rem .875rem;position:relative;text-decoration:none;transition:all .3s cubic-bezier(.4,0,.2,1);z-index:1}.nav-link:before{background:linear-gradient(90deg,#0000,#fff3,#0000);content:"";height:100%;left:-100%;position:absolute;top:0;transition:left .6s ease;width:100%}.nav-link:hover:before{left:100%}.nav-link:hover{box-shadow:0 4px 12px #0000001a;transform:translateY(-1px)}.nav-link.active,.nav-link:hover{background-color:#f9fafb!important;color:#1a1a1a!important}.nav-link.active{box-shadow:0 2px 8px #00000014}.header-actions{align-items:center;display:flex;flex-shrink:0;gap:1rem;position:relative;z-index:3}.header-actions .btn-secondary{display:none}.header-actions .btn-outline{align-items:center;background-color:initial!important;border:1.5px solid #d1d5db!important;border-radius:.5rem;box-sizing:border-box;color:#4b5563!important;cursor:pointer;display:inline-flex;font-size:.9rem;font-weight:500;justify-content:center;line-height:1;min-height:2.5rem;overflow:hidden;padding:.65rem 1.2rem;pointer-events:auto;position:relative;text-decoration:none;transition:all .3s cubic-bezier(.4,0,.2,1);z-index:1}.header-actions .btn-outline:before{background:linear-gradient(90deg,#0000,#fff3,#0000);content:"";height:100%;left:-100%;position:absolute;top:0;transition:left .6s ease;width:100%}.header-actions .btn-outline:hover:before{left:100%}.header-actions .btn-primary{align-items:center;background:linear-gradient(135deg,#1a1a1a,#374151)!important;border:none!important;border-radius:.5rem;box-shadow:0 2px 8px #00000026;box-sizing:border-box;color:#fff!important;cursor:pointer;display:inline-flex;font-size:.9rem;font-weight:600;justify-content:center;line-height:1;min-height:2.5rem;overflow:hidden;padding:.7rem 1.25rem;pointer-events:auto;position:relative;text-decoration:none;transition:all .3s cubic-bezier(.4,0,.2,1);z-index:1}.header-actions .btn-primary:before{background:linear-gradient(135deg,#374151,#4b5563);bottom:0;content:"";left:0;opacity:0;position:absolute;right:0;top:0;transition:opacity .3s cubic-bezier(.4,0,.2,1)}.header-actions .btn-primary:hover:before{opacity:1}.header-actions .btn-outline span,.header-actions .btn-primary span{pointer-events:auto;position:relative;z-index:1}.header-actions .btn-primary:hover{box-shadow:0 6px 20px #00000040;transform:translateY(-2px)}.header-actions .btn-outline:hover{background-color:#f9fafb!important;border-color:#6b7280!important;box-shadow:0 4px 12px #0000001a;color:#1a1a1a!important;transform:translateY(-1px)}.user-info{align-items:center;background-color:#f9fafb;border:1px solid #e5e7eb;border-radius:.5rem;cursor:pointer;display:flex;gap:.5rem;padding:.5rem .75rem;transition:all .3s cubic-bezier(.4,0,.2,1)}.user-info:hover{background-color:#f3f4f6;border-color:#d1d5db;box-shadow:0 2px 8px #0000001a;transform:translateY(-1px)}.user-icon{color:#6b7280;font-size:.875rem;transition:color .3s ease}.user-info:hover .user-icon{color:#374151}.user-name{color:#374151;max-width:120px;text-overflow:ellipsis;white-space:nowrap}.logout-btn,.user-name{font-size:.875rem;font-weight:500;overflow:hidden}.logout-btn{align-items:center;background-color:initial!important;border:1.5px solid #e5e7eb!important;border-radius:.5rem;box-sizing:border-box;color:#6b7280!important;cursor:pointer;display:inline-flex;justify-content:center;line-height:1;min-height:2.25rem;min-width:2.25rem;padding:.5rem;pointer-events:auto;position:relative;text-decoration:none;transition:all .3s cubic-bezier(.4,0,.2,1);z-index:1}.logout-btn:before{background:linear-gradient(90deg,#0000,#fff3,#0000);content:"";height:100%;left:-100%;position:absolute;top:0;transition:left .6s ease;width:100%}.logout-btn:hover:before{left:100%}.logout-btn:hover{background-color:#fee2e2!important;border-color:#fca5a5!important;box-shadow:0 4px 12px #dc262626;color:#dc2626!important;transform:translateY(-1px)}.logout-btn svg{font-size:.875rem;transition:transform .3s ease}.logout-btn:hover svg{transform:scale(1.1)}.mobile-menu-toggle{background:#0000;border:none;color:#1a1a1a;cursor:pointer;display:none;font-size:1.5rem;padding:.5rem;transition:all .3s ease;z-index:1001}.mobile-menu-toggle:hover{color:#374151;transform:scale(1.1)}.mobile-menu-backdrop{background:#00000080;height:100vh;left:0;opacity:0;position:fixed;top:0;transition:opacity .3s ease,visibility .3s ease;visibility:hidden;width:100%;z-index:999}.mobile-menu-backdrop.active{opacity:1;visibility:visible}.mobile-menu-overlay{background:#fff;box-shadow:-4px 0 20px #00000026;height:100vh;max-width:320px;overflow-y:auto;position:fixed;right:-100%;top:0;transition:right .3s cubic-bezier(.4,0,.2,1);width:80%;z-index:1000}.mobile-menu-overlay.active{right:0}body.mobile-menu-open{overflow:hidden}.mobile-nav{display:flex;flex-direction:column;gap:.5rem;padding:5rem 1.5rem 2rem}.mobile-nav-link{align-items:center;border-radius:.5rem;color:#374151;display:flex;font-size:1rem;font-weight:500;padding:1rem;text-decoration:none;transition:all .3s ease}.mobile-nav-link.active,.mobile-nav-link:hover{background-color:#f9fafb;color:#1a1a1a}.mobile-menu-divider{background-color:#e5e7eb;height:1px;margin:1rem 0}.mobile-user-info{align-items:center;background-color:#f9fafb;border-radius:.5rem;display:flex;gap:.75rem;margin-bottom:.5rem;padding:1rem}.mobile-user-info .user-icon{color:#6b7280;font-size:1rem}.mobile-user-info .user-name{color:#374151;font-size:1rem;font-weight:500}.mobile-logout-btn{align-items:center;background-color:#fee2e2;border:none;border-radius:.5rem;color:#dc2626;cursor:pointer;display:flex;font-size:1rem;font-weight:500;gap:.75rem;justify-content:center;padding:1rem;transition:all .3s ease;width:100%}.mobile-logout-btn:hover{background-color:#fecaca}.mobile-nav-btn{border-radius:.5rem;display:block;font-size:1rem;font-weight:500;margin-top:.5rem;padding:1rem;text-align:center;text-decoration:none;transition:all .3s ease}.mobile-nav-btn.btn-outline{background-color:initial;border:1.5px solid #d1d5db;color:#4b5563}.mobile-nav-btn.btn-outline:hover{background-color:#f9fafb;border-color:#6b7280;color:#1a1a1a}.mobile-nav-btn.btn-primary{background:linear-gradient(135deg,#1a1a1a,#374151);border:none;color:#fff}.mobile-nav-btn.btn-primary:hover{background:linear-gradient(135deg,#374151,#4b5563)}@media (max-width:768px){.app-header{padding:1rem}.desktop-actions,.desktop-nav{display:none}.mobile-menu-toggle{display:block}.logo-text{font-size:1rem;margin-left:.5rem}.logo-container:hover,.nav-link:hover{transform:none}}@media (min-width:769px){.mobile-menu-overlay,.mobile-menu-toggle{display:none}}@media (max-width:1200px) and (min-width:1025px){.nav-links{gap:1rem}}@media (max-width:1024px) and (min-width:769px){.nav-links{gap:1rem}.header-actions{gap:.75rem}.nav-link{font-size:.85rem;padding:.45rem .75rem}}@media (max-width:900px) and (min-width:769px){.nav-links{gap:.75rem}.nav-link{font-size:.8rem;padding:.4rem .65rem}}.app-footer{background-color:var(--color-ink);color:var(--color-off-white);margin-top:4rem;padding:3rem 2rem}.footer-container{display:flex;flex-wrap:wrap;gap:2rem;justify-content:space-between;margin:0 auto;max-width:1200px}.footer-column{flex:1 1;min-width:200px}.footer-column h4{color:var(--color-off-white);font-family:var(--font-heading);margin-bottom:1rem}.footer-links{display:flex;flex-direction:column;gap:.75rem}.footer-links a{color:var(--color-cool-gray);font-weight:500}.footer-links a:hover{color:var(--color-orange);text-decoration:none!important}.footer-bottom{border-top:1px solid var(--color-deep-navy);color:var(--color-cool-gray);margin-top:2rem;padding-top:1.5rem;text-align:center}@media (max-width:768px){.app-footer{margin-top:3rem;padding:2.5rem 1.5rem}.footer-container{flex-direction:column;gap:1.5rem}.footer-column{min-width:100%}.footer-column h4{font-size:1.1rem;margin-bottom:.75rem}.footer-links{gap:.5rem}.footer-bottom{font-size:.9rem;margin-top:1.5rem;padding-top:1.25rem}}@media (max-width:480px){.app-footer{margin-top:2rem;padding:2rem 1rem}.footer-container{gap:1.25rem}.footer-column h4{font-size:1rem}.footer-links{font-size:.9rem}.footer-bottom{font-size:.85rem}}
/*# sourceMappingURL=main.7defe706.css.map*/