@font-face{ font-display:swap;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_AMS-Regular.woff2) format("woff2"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_AMS-Regular.woff) format("woff"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_AMS-Regular.ttf) format("truetype") }@font-face{ font-display:swap;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Caligraphic-Bold.woff2) format("woff2"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Caligraphic-Bold.woff) format("woff"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Caligraphic-Bold.ttf) format("truetype") }@font-face{ font-display:swap;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Caligraphic-Regular.woff2) format("woff2"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Caligraphic-Regular.woff) format("woff"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Caligraphic-Regular.ttf) format("truetype") }@font-face{ font-display:swap;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Fraktur-Bold.woff2) format("woff2"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Fraktur-Bold.woff) format("woff"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Fraktur-Bold.ttf) format("truetype") }@font-face{ font-display:swap;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Fraktur-Regular.woff2) format("woff2"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Fraktur-Regular.woff) format("woff"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Fraktur-Regular.ttf) format("truetype") }@font-face{ font-display:swap;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Main-Bold.woff2) format("woff2"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Main-Bold.woff) format("woff"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Main-Bold.ttf) format("truetype") }@font-face{ font-display:swap;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Main-BoldItalic.woff2) format("woff2"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Main-BoldItalic.woff) format("woff"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Main-BoldItalic.ttf) format("truetype") }@font-face{ font-display:swap;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Main-Italic.woff2) format("woff2"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Main-Italic.woff) format("woff"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Main-Italic.ttf) format("truetype") }@font-face{ font-display:swap;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Main-Regular.woff2) format("woff2"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Main-Regular.woff) format("woff"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Main-Regular.ttf) format("truetype") }@font-face{ font-display:swap;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Math-BoldItalic.woff2) format("woff2"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Math-BoldItalic.woff) format("woff"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Math-BoldItalic.ttf) format("truetype") }@font-face{ font-display:swap;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Math-Italic.woff2) format("woff2"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Math-Italic.woff) format("woff"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Math-Italic.ttf) format("truetype") }@font-face{ font-display:swap;font-family:"KaTeX_SansSerif";font-style:normal;font-weight:700;src:url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_SansSerif-Bold.woff2) format("woff2"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_SansSerif-Bold.woff) format("woff"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_SansSerif-Bold.ttf) format("truetype") }@font-face{ font-display:swap;font-family:"KaTeX_SansSerif";font-style:italic;font-weight:400;src:url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_SansSerif-Italic.woff2) format("woff2"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_SansSerif-Italic.woff) format("woff"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_SansSerif-Italic.ttf) format("truetype") }@font-face{ font-display:swap;font-family:"KaTeX_SansSerif";font-style:normal;font-weight:400;src:url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_SansSerif-Regular.woff2) format("woff2"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_SansSerif-Regular.woff) format("woff"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_SansSerif-Regular.ttf) format("truetype") }@font-face{ font-display:swap;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Script-Regular.woff2) format("woff2"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Script-Regular.woff) format("woff"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Script-Regular.ttf) format("truetype") }@font-face{ font-display:swap;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Size1-Regular.woff2) format("woff2"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Size1-Regular.woff) format("woff"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Size1-Regular.ttf) format("truetype") }@font-face{ font-display:swap;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Size2-Regular.woff2) format("woff2"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Size2-Regular.woff) format("woff"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Size2-Regular.ttf) format("truetype") }@font-face{ font-display:swap;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Size3-Regular.woff2) format("woff2"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Size3-Regular.woff) format("woff"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Size3-Regular.ttf) format("truetype") }@font-face{ font-display:swap;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Size4-Regular.woff2) format("woff2"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Size4-Regular.woff) format("woff"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Size4-Regular.ttf) format("truetype") }@font-face{ font-display:swap;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Typewriter-Regular.woff2) format("woff2"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Typewriter-Regular.woff) format("woff"),url(https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/fonts/KaTeX_Typewriter-Regular.ttf) format("truetype") }.katex{text-rendering:auto;font:normal 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;text-indent:0}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.8"}.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:-moz-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .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 .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:.27777778em;margin-right:-.55555556em}.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:.83333333em}.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:1.16666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.33333333em}.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:1.66666667em}.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:3.45666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.14666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.71428571em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.85714286em}.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:1.14285714em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.28571429em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.42857143em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.71428571em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.05714286em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.46857143em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.96285714em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.55428571em}.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:.55555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.66666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.77777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.88888889em}.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:1.11111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.33333333em}.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:2.30444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.76444444em}.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:.41666667em}.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:.58333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.66666667em}.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:.83333333em}.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:1.72833333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.07333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.34722222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.41666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.48611111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.55555556em}.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:.69444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.83333333em}.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:1.44027778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.72777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.28935185em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.34722222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.40509259em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.46296296em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.52083333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.69444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.83333333em}.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:1.20023148em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.43981481em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.24108004em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.28929605em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.33751205em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.38572806em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.43394407em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.48216008em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.57859209em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.69431051em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.83317261em}.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:1.19961427em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.20096463em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.24115756em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.28135048em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.32154341em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.36173633em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.40192926em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.48231511em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.57877814em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.69453376em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.83360129em}.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}
img:is([sizes=auto i],[sizes^="auto," i]){contain-intrinsic-size:3000px 1500px}
/*! This file is auto-generated */
.wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none}.ai-summarization-summary{--ai-summary-border-color:#1d2327;--ai-summary-background-color:rgba(29,35,39,.04);background-color:var(--ai-summary-background-color);border-left:4px solid var(--ai-summary-border-color);padding:1em 1.25em}.ai-summarization-summary>:last-child{margin-bottom:0}.ai-summarization-plugin-container .components-button.ai-summarization-plugin-button{justify-content:center;width:100%}.ai-summarization-plugin-container .description{color:#757575}.block-editor-block-popover .ai-summarization-block-controls-button{height:46px;margin-top:1px}:root{--wp--preset--aspect-ratio--square:1;--wp--preset--aspect-ratio--4-3:4/3;--wp--preset--aspect-ratio--3-4:3/4;--wp--preset--aspect-ratio--3-2:3/2;--wp--preset--aspect-ratio--2-3:2/3;--wp--preset--aspect-ratio--16-9:16/9;--wp--preset--aspect-ratio--9-16:9/16;--wp--preset--color--black:#000000;--wp--preset--color--cyan-bluish-gray:#abb8c3;--wp--preset--color--white:#ffffff;--wp--preset--color--pale-pink:#f78da7;--wp--preset--color--vivid-red:#cf2e2e;--wp--preset--color--luminous-vivid-orange:#ff6900;--wp--preset--color--luminous-vivid-amber:#fcb900;--wp--preset--color--light-green-cyan:#7bdcb5;--wp--preset--color--vivid-green-cyan:#00d084;--wp--preset--color--pale-cyan-blue:#8ed1fc;--wp--preset--color--vivid-cyan-blue:#0693e3;--wp--preset--color--vivid-purple:#9b51e0;--wp--preset--gradient--vivid-cyan-blue-to-vivid-purple:linear-gradient(135deg,rgb(6,147,227) 0%,rgb(155,81,224) 100%);--wp--preset--gradient--light-green-cyan-to-vivid-green-cyan:linear-gradient(135deg,rgb(122,220,180) 0%,rgb(0,208,130) 100%);--wp--preset--gradient--luminous-vivid-amber-to-luminous-vivid-orange:linear-gradient(135deg,rgb(252,185,0) 0%,rgb(255,105,0) 100%);--wp--preset--gradient--luminous-vivid-orange-to-vivid-red:linear-gradient(135deg,rgb(255,105,0) 0%,rgb(207,46,46) 100%);--wp--preset--gradient--very-light-gray-to-cyan-bluish-gray:linear-gradient(135deg,rgb(238,238,238) 0%,rgb(169,184,195) 100%);--wp--preset--gradient--cool-to-warm-spectrum:linear-gradient(135deg,rgb(74,234,220) 0%,rgb(151,120,209) 20%,rgb(207,42,186) 40%,rgb(238,44,130) 60%,rgb(251,105,98) 80%,rgb(254,248,76) 100%);--wp--preset--gradient--blush-light-purple:linear-gradient(135deg,rgb(255,206,236) 0%,rgb(152,150,240) 100%);--wp--preset--gradient--blush-bordeaux:linear-gradient(135deg,rgb(254,205,165) 0%,rgb(254,45,45) 50%,rgb(107,0,62) 100%);--wp--preset--gradient--luminous-dusk:linear-gradient(135deg,rgb(255,203,112) 0%,rgb(199,81,192) 50%,rgb(65,88,208) 100%);--wp--preset--gradient--pale-ocean:linear-gradient(135deg,rgb(255,245,203) 0%,rgb(182,227,212) 50%,rgb(51,167,181) 100%);--wp--preset--gradient--electric-grass:linear-gradient(135deg,rgb(202,248,128) 0%,rgb(113,206,126) 100%);--wp--preset--gradient--midnight:linear-gradient(135deg,rgb(2,3,129) 0%,rgb(40,116,252) 100%);--wp--preset--font-size--small:13px;--wp--preset--font-size--medium:20px;--wp--preset--font-size--large:36px;--wp--preset--font-size--x-large:42px;--wp--preset--spacing--20:0.44rem;--wp--preset--spacing--30:0.67rem;--wp--preset--spacing--40:1rem;--wp--preset--spacing--50:1.5rem;--wp--preset--spacing--60:2.25rem;--wp--preset--spacing--70:3.38rem;--wp--preset--spacing--80:5.06rem;--wp--preset--shadow--natural:6px 6px 9px rgba(0, 0, 0, 0.2);--wp--preset--shadow--deep:12px 12px 50px rgba(0, 0, 0, 0.4);--wp--preset--shadow--sharp:6px 6px 0px rgba(0, 0, 0, 0.2);--wp--preset--shadow--outlined:6px 6px 0px -3px rgb(255, 255, 255), 6px 6px rgb(0, 0, 0);--wp--preset--shadow--crisp:6px 6px 0px rgb(0, 0, 0)}.wp-block-button{--wp--preset--dimension--25:25%;--wp--preset--dimension--50:50%;--wp--preset--dimension--75:75%;--wp--preset--dimension--100:100%}:where(body){margin:0}:where(.is-layout-flex){gap:.5em}:where(.is-layout-grid){gap:.5em}body .is-layout-flex{display:flex}.is-layout-flex{flex-wrap:wrap;align-items:center}.is-layout-flex>:is(*,div){margin:0}body .is-layout-grid{display:grid}.is-layout-grid>:is(*,div){margin:0}body{padding-top:0;padding-right:0;padding-bottom:0;padding-left:0}:root :where(.wp-element-button,.wp-block-button__link){background-color:#32373c;border-width:0;color:#fff;font-family:inherit;font-size:inherit;font-style:inherit;font-weight:inherit;letter-spacing:inherit;line-height:inherit;padding-top:calc(0.667em + 2px);padding-right:calc(1.333em + 2px);padding-bottom:calc(0.667em + 2px);padding-left:calc(1.333em + 2px);text-decoration:none;text-transform:inherit}.has-black-color{color:var(--wp--preset--color--black)!important}.has-cyan-bluish-gray-color{color:var(--wp--preset--color--cyan-bluish-gray)!important}.has-white-color{color:var(--wp--preset--color--white)!important}.has-pale-pink-color{color:var(--wp--preset--color--pale-pink)!important}.has-vivid-red-color{color:var(--wp--preset--color--vivid-red)!important}.has-luminous-vivid-orange-color{color:var(--wp--preset--color--luminous-vivid-orange)!important}.has-luminous-vivid-amber-color{color:var(--wp--preset--color--luminous-vivid-amber)!important}.has-light-green-cyan-color{color:var(--wp--preset--color--light-green-cyan)!important}.has-vivid-green-cyan-color{color:var(--wp--preset--color--vivid-green-cyan)!important}.has-pale-cyan-blue-color{color:var(--wp--preset--color--pale-cyan-blue)!important}.has-vivid-cyan-blue-color{color:var(--wp--preset--color--vivid-cyan-blue)!important}.has-vivid-purple-color{color:var(--wp--preset--color--vivid-purple)!important}.has-black-background-color{background-color:var(--wp--preset--color--black)!important}.has-cyan-bluish-gray-background-color{background-color:var(--wp--preset--color--cyan-bluish-gray)!important}.has-white-background-color{background-color:var(--wp--preset--color--white)!important}.has-pale-pink-background-color{background-color:var(--wp--preset--color--pale-pink)!important}.has-vivid-red-background-color{background-color:var(--wp--preset--color--vivid-red)!important}.has-luminous-vivid-orange-background-color{background-color:var(--wp--preset--color--luminous-vivid-orange)!important}.has-luminous-vivid-amber-background-color{background-color:var(--wp--preset--color--luminous-vivid-amber)!important}.has-light-green-cyan-background-color{background-color:var(--wp--preset--color--light-green-cyan)!important}.has-vivid-green-cyan-background-color{background-color:var(--wp--preset--color--vivid-green-cyan)!important}.has-pale-cyan-blue-background-color{background-color:var(--wp--preset--color--pale-cyan-blue)!important}.has-vivid-cyan-blue-background-color{background-color:var(--wp--preset--color--vivid-cyan-blue)!important}.has-vivid-purple-background-color{background-color:var(--wp--preset--color--vivid-purple)!important}.has-black-border-color{border-color:var(--wp--preset--color--black)!important}.has-cyan-bluish-gray-border-color{border-color:var(--wp--preset--color--cyan-bluish-gray)!important}.has-white-border-color{border-color:var(--wp--preset--color--white)!important}.has-pale-pink-border-color{border-color:var(--wp--preset--color--pale-pink)!important}.has-vivid-red-border-color{border-color:var(--wp--preset--color--vivid-red)!important}.has-luminous-vivid-orange-border-color{border-color:var(--wp--preset--color--luminous-vivid-orange)!important}.has-luminous-vivid-amber-border-color{border-color:var(--wp--preset--color--luminous-vivid-amber)!important}.has-light-green-cyan-border-color{border-color:var(--wp--preset--color--light-green-cyan)!important}.has-vivid-green-cyan-border-color{border-color:var(--wp--preset--color--vivid-green-cyan)!important}.has-pale-cyan-blue-border-color{border-color:var(--wp--preset--color--pale-cyan-blue)!important}.has-vivid-cyan-blue-border-color{border-color:var(--wp--preset--color--vivid-cyan-blue)!important}.has-vivid-purple-border-color{border-color:var(--wp--preset--color--vivid-purple)!important}.has-vivid-cyan-blue-to-vivid-purple-gradient-background{background:var(--wp--preset--gradient--vivid-cyan-blue-to-vivid-purple)!important}.has-light-green-cyan-to-vivid-green-cyan-gradient-background{background:var(--wp--preset--gradient--light-green-cyan-to-vivid-green-cyan)!important}.has-luminous-vivid-amber-to-luminous-vivid-orange-gradient-background{background:var(--wp--preset--gradient--luminous-vivid-amber-to-luminous-vivid-orange)!important}.has-luminous-vivid-orange-to-vivid-red-gradient-background{background:var(--wp--preset--gradient--luminous-vivid-orange-to-vivid-red)!important}.has-very-light-gray-to-cyan-bluish-gray-gradient-background{background:var(--wp--preset--gradient--very-light-gray-to-cyan-bluish-gray)!important}.has-cool-to-warm-spectrum-gradient-background{background:var(--wp--preset--gradient--cool-to-warm-spectrum)!important}.has-blush-light-purple-gradient-background{background:var(--wp--preset--gradient--blush-light-purple)!important}.has-blush-bordeaux-gradient-background{background:var(--wp--preset--gradient--blush-bordeaux)!important}.has-luminous-dusk-gradient-background{background:var(--wp--preset--gradient--luminous-dusk)!important}.has-pale-ocean-gradient-background{background:var(--wp--preset--gradient--pale-ocean)!important}.has-electric-grass-gradient-background{background:var(--wp--preset--gradient--electric-grass)!important}.has-midnight-gradient-background{background:var(--wp--preset--gradient--midnight)!important}.has-small-font-size{font-size:var(--wp--preset--font-size--small)!important}.has-medium-font-size{font-size:var(--wp--preset--font-size--medium)!important}.has-large-font-size{font-size:var(--wp--preset--font-size--large)!important}.has-x-large-font-size{font-size:var(--wp--preset--font-size--x-large)!important}.cbse-chapter-hub-container,.cbse-flow-navigation-card{--cbse-grid-bg:#ffffff;--cbse-grid-border:#e2e8f0;--cbse-grid-radius:16px;--cbse-grid-hover:#3b82f6;--cbse-grid-scale:1.03;--cbse-grid-text:#0f172a;--cbse-card-bg:#f8fafc;--cbse-card-border:#e2e8f0;--cbse-card-desc:#64748b;--cbse-tooltip-color:#1e3a8a;--cbse-grid-shadow:0 4px 6px -1px rgb(0 0 0 / 0.05), 0 2px 4px -2px rgb(0 0 0 / 0.05);--cbse-grid-hover-shadow:0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1)}.cbse-chapter-hub-container{margin:40px 0;padding:24px;background:var(--cbse-grid-bg);border:1px solid var(--cbse-grid-border);border-radius:var(--cbse-grid-radius);box-shadow:var(--cbse-grid-shadow);font-family:'Outfit','Plus Jakarta Sans',system-ui,sans-serif;transition:box-shadow 0.3s ease}.cbse-hub-title{margin:0 0 6px 0;font-size:20px;font-weight:700;color:var(--cbse-grid-text);letter-spacing:-.02em}.cbse-hub-subtitle{margin:0 0 20px 0;font-size:14px;color:#64748b!important;line-height:1.4}.cbse-bento-grid{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:16px}.cbse-grid-card{display:flex;align-items:flex-start;padding:20px;background:var(--cbse-card-bg);border:1px solid var(--cbse-card-border);border-radius:calc(var(--cbse-grid-radius) - 4px);text-decoration:none!important;color:inherit!important;position:relative;overflow:hidden;transition:all 0.3s cubic-bezier(.2,.8,.2,1)}.cbse-grid-card.card-notes{border-left:4px solid #3b82f6}.cbse-grid-card.card-notes:hover{background:var(--cbse-hover-notes-bg,linear-gradient(135deg,#f0f7ff 0%,#f8fafc 100%))}.cbse-grid-card.card-mcqs{border-left:4px solid #8b5cf6}.cbse-grid-card.card-mcqs:hover{background:var(--cbse-hover-mcqs-bg,linear-gradient(135deg,#f5f3ff 0%,#f8fafc 100%))}.cbse-grid-card.card-qna{border-left:4px solid #10b981}.cbse-grid-card.card-qna:hover{background:var(--cbse-hover-qna-bg,linear-gradient(135deg,#ecfdf5 0%,#f8fafc 100%))}.cbse-grid-card.card-pyqs{border-left:4px solid #f59e0b}.cbse-grid-card.card-pyqs:hover{background:var(--cbse-hover-pyqs-bg,linear-gradient(135deg,#fffbeb 0%,#f8fafc 100%))}.cbse-grid-card:hover{transform:translateY(-2px) scale(var(--cbse-grid-scale));border-color:var(--cbse-grid-hover);box-shadow:0 4px 12px rgb(0 0 0 / .05)}.cbse-grid-card .card-icon{flex-shrink:0;width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:var(--cbse-grid-bg);border-radius:12px;margin-right:16px;box-shadow:0 2px 4px rgb(0 0 0 / .02);transition:all 0.3s ease}.cbse-grid-card.card-notes .card-icon{color:#3b82f6}.cbse-grid-card.card-mcqs .card-icon{color:#8b5cf6}.cbse-grid-card.card-qna .card-icon{color:#10b981}.cbse-grid-card.card-pyqs .card-icon{color:#f59e0b}.cbse-grid-card:hover .card-icon{transform:rotate(-5deg) scale(1.05)}.cbse-grid-card .card-content{flex-grow:1}.cbse-grid-card .card-content h4{margin:0 0 4px 0;font-size:16px;font-weight:600;color:var(--cbse-grid-text)}.cbse-grid-card .card-content p{margin:0;font-size:12px;color:var(--cbse-card-desc);line-height:1.4}.cbse-grid-badge{position:absolute;top:12px;right:12px;font-size:9px;font-weight:700;text-transform:uppercase;padding:2px 6px;border-radius:9999px;letter-spacing:.05em}.cbse-grid-badge.active{background:#dcfce7;color:#15803d}.cbse-grid-badge.fallback{background:#fee2e2;color:#b91c1c}@media (max-width:640px){.cbse-bento-grid{grid-template-columns:1fr}}.cbse-flow-navigation-card{display:flex;gap:16px;margin:30px 0;font-family:'Outfit','Plus Jakarta Sans',system-ui,sans-serif}.flow-nav-item{flex:1;display:flex;flex-direction:column;padding:16px 20px;background:var(--cbse-card-bg);border:1px solid var(--cbse-card-border);border-radius:12px;text-decoration:none!important;color:inherit!important;box-shadow:0 2px 4px rgb(0 0 0 / .02);transition:all 0.3s cubic-bezier(.2,.8,.2,1)}.flow-nav-prev{align-items:flex-start;border-left:4px solid #3b82f6}.flow-nav-next{align-items:flex-end;border-right:4px solid #3b82f6;text-align:right}.flow-nav-item:hover{transform:translateY(-2px);border-color:#3b82f6;box-shadow:0 6px 12px rgb(0 0 0 / .05)}.flow-nav-item .nav-direction{font-size:11px;font-weight:700;text-transform:uppercase;color:#3b82f6;margin-bottom:4px;letter-spacing:.05em}.flow-nav-item .nav-title{font-size:15px;font-weight:600;color:var(--cbse-grid-text);line-height:1.3}.flow-nav-empty{border:none;background:#fff0;pointer-events:none;box-shadow:none}@media (max-width:480px){.cbse-flow-navigation-card{flex-direction:column;gap:12px}}.cbse-tooltip{position:relative;border-bottom:2px dashed #3b82f6;cursor:pointer;color:var(--cbse-tooltip-color);font-weight:600;transition:all 0.2s ease;display:inline-block}.cbse-tooltip:hover{color:#3b82f6;border-bottom-color:#fff0}.cbse-tooltip::after{content:attr(data-tooltip);position:absolute;bottom:130%;left:50%;transform:translateX(-50%) translateY(6px);background:rgb(15 23 42 / .95);backdrop-filter:blur(4px);color:#fff;padding:10px 14px;border-radius:8px;font-size:12px;line-height:1.4;width:220px;text-align:center;box-shadow:0 10px 15px -3px rgb(0 0 0 / .2),0 4px 6px -4px rgb(0 0 0 / .2);pointer-events:none;opacity:0;transition:opacity 0.2s cubic-bezier(.16,1,.3,1),transform 0.2s cubic-bezier(.16,1,.3,1);z-index:9999;font-weight:400;font-family:system-ui,-apple-system,sans-serif}.cbse-tooltip::before{content:'';position:absolute;bottom:120%;left:50%;transform:translateX(-50%) translateY(6px);border-width:6px;border-style:solid;border-color:rgb(15 23 42 / .95) #fff0 #fff0 #fff0;pointer-events:none;opacity:0;transition:opacity 0.2s cubic-bezier(.16,1,.3,1),transform 0.2s cubic-bezier(.16,1,.3,1);z-index:9999}.cbse-tooltip:hover::after,.cbse-tooltip.touch-active::after{opacity:1;transform:translateX(-50%) translateY(0)}.cbse-tooltip:hover::before,.cbse-tooltip.touch-active::before{opacity:1;transform:translateX(-50%) translateY(0)}.internal-link{color:#2563eb!important;text-decoration:underline!important;font-weight:600;transition:color 0.2s ease}.internal-link:hover{color:#1d4ed8!important}.external-link{color:#059669!important;text-decoration:underline!important;font-weight:600;transition:color 0.2s ease}.external-link:hover{color:#047857!important}html[data-theme="dark"] .cbse-chapter-hub-container,html[data-theme="dark"] .cbse-flow-navigation-card,body.dark-mode .cbse-chapter-hub-container,body.dark .cbse-chapter-hub-container,body.wp-dark-mode-active .cbse-chapter-hub-container,body.dark-mode .cbse-flow-navigation-card,body.dark .cbse-flow-navigation-card,body.wp-dark-mode-active .cbse-flow-navigation-card{--cbse-grid-bg:#1e293b !important;--cbse-grid-border:#334155 !important;--cbse-grid-text:#f8fafc !important;--cbse-card-bg:#0f172a !important;--cbse-card-border:#334155 !important;--cbse-card-desc:#cbd5e1 !important;--cbse-tooltip-color:#60a5fa !important;--cbse-hover-notes-bg:linear-gradient(135deg, rgba(59, 130, 246, 0.15) 0%, #0f172a 100%) !important;--cbse-hover-mcqs-bg:linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, #0f172a 100%) !important;--cbse-hover-qna-bg:linear-gradient(135deg, rgba(16, 185, 129, 0.15) 0%, #0f172a 100%) !important;--cbse-hover-pyqs-bg:linear-gradient(135deg, rgba(245, 158, 11, 0.15) 0%, #0f172a 100%) !important}@media (prefers-color-scheme:dark){html:not([data-theme="light"]):not(.light-mode) .cbse-chapter-hub-container,html:not([data-theme="light"]):not(.light-mode) .cbse-flow-navigation-card{--cbse-grid-bg:#1e293b !important;--cbse-grid-border:#334155 !important;--cbse-grid-text:#f8fafc !important;--cbse-card-bg:#0f172a !important;--cbse-card-border:#334155 !important;--cbse-card-desc:#cbd5e1 !important;--cbse-tooltip-color:#60a5fa !important;--cbse-hover-notes-bg:linear-gradient(135deg, rgba(59, 130, 246, 0.15) 0%, #0f172a 100%) !important;--cbse-hover-mcqs-bg:linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, #0f172a 100%) !important;--cbse-hover-qna-bg:linear-gradient(135deg, rgba(16, 185, 129, 0.15) 0%, #0f172a 100%) !important;--cbse-hover-pyqs-bg:linear-gradient(135deg, rgba(245, 158, 11, 0.15) 0%, #0f172a 100%) !important}}:root{color-scheme:light dark;--cbse-c:hsl(354, 85%, 58%);--cbse-b:hsl(38, 95%, 52%);--cbse-s:hsl(150, 75%, 40%);--cbse-e:hsl(215, 85%, 52%);--logo-c:#dc2626;--logo-b:#d97706;--logo-s:#059669;--logo-e:#2563eb;--logo-line:#cbd5e1;--logo-text:#1e3a8a;--logo-desc:#475569;--bg-header:#ffffff;--primary:hsl(225, 60%, 35%);--primary-light:hsl(225, 55%, 45%);--primary-dark:hsl(225, 60%, 28%);--primary-transparent:hsla(225, 60%, 35%, 0.08);--accent:var(--cbse-s);--accent-light:hsl(150, 75%, 55%);--bg:hsl(220, 20%, 97%);--bg-card:hsl(0, 0%, 100%);--bg-card-hover:hsl(220, 20%, 94%);--border:hsl(220, 15%, 88%);--text-main:hsl(225, 40%, 12%);--text-muted:hsl(220, 12%, 46%);--shadow:0 4px 20px -2px rgba(0, 0, 0, 0.05), 0 2px 8px -1px rgba(0, 0, 0, 0.03);--shadow-hover:0 20px 40px -10px rgba(0, 0, 0, 0.08), 0 4px 12px -2px rgba(0, 0, 0, 0.05);--font-heading:'Outfit', sans-serif;--font-body:'Plus Jakarta Sans', sans-serif;--radius:16px;--radius-sm:8px;--transition:all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);--transition-fast:all 0.15s ease-out}@media (prefers-color-scheme:dark){:root{--primary:hsl(225, 75%, 72%);--primary-light:hsl(225, 75%, 80%);--primary-dark:hsl(225, 75%, 60%);--primary-transparent:hsla(225, 75%, 72%, 0.15);--accent:hsl(150, 75%, 60%);--accent-light:hsl(150, 75%, 72%);--bg:hsl(232, 25%, 10%);--logo-c:#e43f5a;--logo-b:#f59e0b;--logo-s:#10b981;--logo-e:#60a5fa;--logo-line:#2d3a55;--logo-text:#a5b4fc;--logo-desc:#475569;--bg-header:rgba(18, 19, 28, 0.8);--bg-card:hsl(232, 22%, 14%);--bg-card-hover:hsl(232, 22%, 18%);--border:hsl(232, 18%, 22%);--text-main:hsl(210, 20%, 98%);--text-muted:hsl(220, 12%, 70%);--shadow:0 4px 25px -4px rgba(0, 0, 0, 0.3), 0 2px 10px -2px rgba(0, 0, 0, 0.2);--shadow-hover:0 25px 50px -12px rgba(0, 0, 0, 0.5), 0 8px 20px -4px rgba(0, 0, 0, 0.35)}}html[data-theme="dark"]{--primary:hsl(225, 75%, 72%);--primary-light:hsl(225, 75%, 80%);--primary-dark:hsl(225, 75%, 60%);--primary-transparent:hsla(225, 75%, 72%, 0.15);--accent:hsl(150, 75%, 60%);--accent-light:hsl(150, 75%, 72%);--bg:hsl(232, 25%, 10%);--logo-c:#e43f5a;--logo-b:#f59e0b;--logo-s:#10b981;--logo-e:#60a5fa;--logo-line:#2d3a55;--logo-text:#a5b4fc;--logo-desc:#475569;--bg-header:rgba(18, 19, 28, 0.8);--bg-card:hsl(232, 22%, 14%);--bg-card-hover:hsl(232, 22%, 18%);--border:hsl(232, 18%, 22%);--text-main:hsl(210, 20%, 98%);--text-muted:hsl(220, 12%, 70%);--shadow:0 4px 25px -4px rgba(0, 0, 0, 0.3), 0 2px 10px -2px rgba(0, 0, 0, 0.2);--shadow-hover:0 25px 50px -12px rgba(0, 0, 0, 0.5), 0 8px 20px -4px rgba(0, 0, 0, 0.35)}html[data-theme="light"]{--primary:hsl(225, 60%, 35%);--primary-light:hsl(225, 55%, 45%);--primary-dark:hsl(225, 60%, 28%);--primary-transparent:hsla(225, 60%, 35%, 0.08);--accent:var(--cbse-s);--accent-light:hsl(150, 75%, 55%);--bg:hsl(220, 20%, 97%);--logo-c:#dc2626;--logo-b:#d97706;--logo-s:#059669;--logo-e:#2563eb;--logo-line:#cbd5e1;--logo-text:#1e3a8a;--logo-desc:#475569;--bg-header:#ffffff;--bg-card:hsl(0, 0%, 100%);--bg-card-hover:hsl(220, 20%, 94%);--border:hsl(220, 15%, 88%);--text-main:hsl(225, 40%, 12%);--text-muted:hsl(220, 12%, 46%);--shadow:0 4px 20px -2px rgba(0, 0, 0, 0.05), 0 2px 8px -1px rgba(0, 0, 0, 0.03);--shadow-hover:0 20px 40px -10px rgba(0, 0, 0, 0.08), 0 4px 12px -2px rgba(0, 0, 0, 0.05)}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg);color:var(--text-main);font-family:var(--font-body);font-size:16px;line-height:1.6;overflow-x:hidden;transition:background-color 0.3s ease,color 0.3s ease}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:700;line-height:1.25;margin-bottom:.5em;color:var(--text-main)}a{color:var(--primary);text-decoration:none;transition:var(--transition-fast)}a:hover{color:var(--primary-light)}img{max-width:100%;height:auto;border-radius:var(--radius-sm)}.container{width:90%;max-width:1200px;margin:0 auto;padding:0 20px}.site-header{position:sticky;top:0;background:var(--bg-header);backdrop-filter:blur(15px);-webkit-backdrop-filter:blur(15px);border-bottom:1px solid var(--border);z-index:1000;padding:15px 0;transition:var(--transition)}.site-header .container{display:flex;justify-content:space-between;align-items:center}.site-logo a{display:flex;align-items:center;gap:12px;text-decoration:none}.logo-icon-wrap{display:flex;align-items:center;flex-shrink:0}.site-logo-icon{height:38px;width:87px;display:block;flex-shrink:0}.site-logo-icon .logo-c{fill:var(--logo-c)!important}.site-logo-icon .logo-b{fill:var(--logo-b)!important}.site-logo-icon .logo-s{fill:var(--logo-s)!important}.site-logo-icon .logo-e{fill:var(--logo-e)!important}.site-logo-icon text,.site-logo-icon rect{transition:fill 0.3s ease}.logo-divider-line{width:1.5px;height:34px;background-color:var(--logo-line)!important;display:block;flex-shrink:0;transition:background-color 0.3s ease}.logo-text-wrap{display:flex;flex-direction:column;justify-content:center;flex-shrink:0}.logo-title{font-family:'Georgia',serif;font-size:1.2rem;font-weight:700;color:var(--logo-text)!important;line-height:1.25;transition:color 0.3s ease;white-space:nowrap}.logo-tagline{font-family:var(--font-body);font-size:.65rem;color:var(--logo-desc)!important;line-height:1.3;margin-top:2px;transition:color 0.3s ease;white-space:nowrap}.main-navigation{display:flex;align-items:center;gap:20px}.main-navigation ul{list-style:none;margin:0;padding:0;display:flex;align-items:center;gap:20px}.main-navigation li{position:relative}.main-navigation a{font-weight:600;font-size:.95rem;color:var(--text-main);display:inline-flex;align-items:center;padding:10px 0;transition:var(--transition-fast)}.main-navigation a:hover,.main-navigation .current-menu-item>a{color:var(--primary)}.main-navigation ul.sub-menu{display:flex;position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(15px);background-color:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);min-width:260px;box-shadow:var(--shadow-hover);padding:10px 0;z-index:1000;margin:0;flex-direction:column;align-items:flex-start;gap:0;opacity:0;visibility:hidden;pointer-events:none;transition:opacity 0.25s cubic-bezier(.16,1,.3,1),transform 0.25s cubic-bezier(.16,1,.3,1),visibility 0.25s cubic-bezier(.16,1,.3,1)}.main-navigation ul.sub-menu li{width:100%}.main-navigation ul.sub-menu a{display:block;width:100%;padding:10px 20px;font-size:.88rem;font-weight:500;color:var(--text-main);white-space:normal;line-height:1.4;border-radius:0}.main-navigation ul.sub-menu a:hover{background-color:var(--primary-transparent);color:var(--primary);padding-left:25px}.main-navigation li:hover>ul.sub-menu{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}.main-navigation li.menu-item-has-children>a::after{content:'';display:inline-block;width:0;height:0;border-left:4.5px solid #fff0;border-right:4.5px solid #fff0;border-top:4.5px solid var(--text-muted);margin-left:6px;transition:transform 0.2s ease,border-top-color 0.2s ease;vertical-align:middle}.main-navigation li.menu-item-has-children:hover>a::after{border-top-color:var(--primary);transform:rotate(-180deg)}@media (min-width:992px){.main-navigation li.cbse-mega-menu{position:static}.main-navigation li.cbse-mega-menu>ul.sub-menu{width:100%;max-width:1160px;left:50%;transform:translateX(-50%) translateY(15px);display:grid;grid-template-columns:repeat(4,1fr);gap:30px;padding:30px;border-radius:var(--radius);flex-direction:row;align-items:stretch}.main-navigation li.cbse-mega-menu:hover>ul.sub-menu{transform:translateX(-50%) translateY(0)}.main-navigation li.cbse-mega-menu>ul.sub-menu>li{display:flex;flex-direction:column;gap:15px;width:auto}.main-navigation li.cbse-mega-menu>ul.sub-menu>li>a{font-family:var(--font-heading);font-size:1.05rem;font-weight:800;color:var(--primary);border-bottom:2px solid var(--border);padding:0 0 10px 0;width:100%;pointer-events:none;display:block}.main-navigation li.cbse-mega-menu>ul.sub-menu>li ul{display:flex;flex-direction:column;align-items:flex-start;gap:8px;width:100%}.main-navigation li.cbse-mega-menu>ul.sub-menu>li ul li{width:100%}.main-navigation li.cbse-mega-menu>ul.sub-menu>li ul a{font-size:.88rem;font-weight:600;color:var(--text-muted);padding:6px 12px;border-radius:var(--radius-sm);display:block;width:100%;transition:var(--transition-fast);white-space:normal;line-height:1.3}.main-navigation li.cbse-mega-menu>ul.sub-menu>li ul a:hover{background-color:var(--primary-transparent);color:var(--primary);padding-left:18px}}.theme-toggle-btn{background:none;border:1px solid var(--border);color:var(--text-main);padding:8px 12px;border-radius:var(--radius-sm);cursor:pointer;font-family:var(--font-body);font-weight:600;font-size:.85rem;transition:var(--transition);display:flex;align-items:center;gap:6px}.theme-toggle-btn:hover{background-color:var(--border)}.header-actions{display:flex;align-items:center;gap:12px}.mobile-menu-toggle-btn{display:none;background:none;border:1px solid var(--border);color:var(--text-main);padding:8px;border-radius:var(--radius-sm);cursor:pointer;align-items:center;justify-content:center;transition:var(--transition)}.mobile-menu-toggle-btn:hover{background-color:var(--border)}.hero-section{padding:80px 0 50px 0;text-align:center;position:relative}.hero-title{font-size:3.5rem;font-weight:800;letter-spacing:-1.5px;margin-bottom:20px;color:var(--text-main)!important;background:linear-gradient(135deg,var(--text-main),var(--primary));-webkit-background-clip:text;-webkit-text-fill-color:#fff0}.hero-subtitle{font-size:1.2rem;color:var(--text-muted)!important;max-width:600px;margin:0 auto 40px auto}.search-wrapper{max-width:600px;margin:0 auto;position:relative;box-shadow:var(--shadow-hover);border-radius:var(--radius);overflow:hidden}.search-wrapper input{width:100%;padding:20px 25px;border:1px solid var(--border);background-color:var(--bg-card);color:var(--text-main);font-family:var(--font-body);font-size:1.1rem;outline:none;border-radius:var(--radius);transition:var(--transition)}.search-wrapper input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-transparent)}.search-wrapper button{position:absolute;right:10px;top:50%;transform:translateY(-50%);background:var(--primary);border:none;color:#fff;padding:10px 20px;border-radius:calc(var(--radius) - 6px);font-family:var(--font-body);font-weight:600;cursor:pointer;transition:var(--transition)}.search-wrapper button:hover{background:var(--primary-light)}.directory-section{padding:50px 0}.directory-controls{display:flex;justify-content:center;gap:15px;margin-bottom:40px}.medium-btn{background:var(--bg-card);border:1px solid var(--border);color:var(--text-muted);padding:12px 30px;border-radius:30px;font-weight:700;cursor:pointer;transition:var(--transition);font-family:var(--font-heading);box-shadow:var(--shadow)}.medium-btn.active,.medium-btn:hover{background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-hover)}.class-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:30px}.class-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:35px 30px;transition:var(--transition);position:relative;overflow:hidden;box-shadow:var(--shadow)}.class-card::before{content:'';position:absolute;top:0;left:0;width:6px;height:100%;background:var(--primary)}.class-card:nth-child(4n+1)::before{background:var(--cbse-c)}.class-card:nth-child(4n+2)::before{background:var(--cbse-b)}.class-card:nth-child(4n+3)::before{background:var(--cbse-s)}.class-card:nth-child(4n+4)::before{background:var(--cbse-e)}.class-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}.class-card:nth-child(4n+1):hover{border-color:var(--cbse-c)}.class-card:nth-child(4n+2):hover{border-color:var(--cbse-b)}.class-card:nth-child(4n+3):hover{border-color:var(--cbse-s)}.class-card:nth-child(4n+4):hover{border-color:var(--cbse-e)}.class-badge{padding:6px 12px;border-radius:20px;font-size:.75rem;font-weight:700;text-transform:uppercase;display:inline-block;margin-bottom:15px}.class-card:nth-child(4n+1) .class-badge{background:rgb(230 57 70 / .1);color:var(--cbse-c)}.class-card:nth-child(4n+2) .class-badge{background:rgb(255 170 0 / .15);color:var(--cbse-b)}.class-card:nth-child(4n+3) .class-badge{background:rgb(16 185 129 / .1);color:var(--cbse-s)}.class-card:nth-child(4n+4) .class-badge{background:rgb(42 117 211 / .1);color:var(--cbse-e)}html[data-theme="dark"] .class-card:nth-child(4n+1) .class-badge{background:rgb(230 57 70 / .2)}html[data-theme="dark"] .class-card:nth-child(4n+2) .class-badge{background:rgb(255 170 0 / .25)}html[data-theme="dark"] .class-card:nth-child(4n+3) .class-badge{background:rgb(16 185 129 / .2)}html[data-theme="dark"] .class-card:nth-child(4n+4) .class-badge{background:rgb(42 117 211 / .2)}.class-card-title{font-size:1.6rem;font-weight:800;margin-bottom:10px;color:var(--text-main)!important}.class-card-description{font-size:.9rem;color:var(--text-muted)!important;margin-bottom:25px}.subjects-list-links{display:flex;flex-direction:column;gap:12px}.subject-link-item{display:flex;justify-content:space-between;align-items:center;font-weight:600;color:var(--text-main)!important;border-bottom:1px solid var(--border);padding-bottom:8px;font-size:.95rem}.subject-link-item:hover{color:var(--primary)!important;padding-left:5px}.subject-link-item span{font-size:.75rem;color:var(--text-muted)!important;background:var(--bg)!important;padding:2px 8px;border-radius:4px}.notes-layout-wrapper{display:grid;grid-template-columns:1fr 280px;gap:40px;padding:40px 0;min-width:0}.notes-content-area,.notes-sidebar{min-width:0}.notes-content-area{grid-column:1;grid-row:1}.notes-sidebar{grid-column:2;grid-row:1;position:sticky;top:100px;align-self:start}.notes-nav-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}.notes-nav-title{font-size:1.1rem;font-weight:800;margin-bottom:20px;padding-bottom:10px;border-bottom:2px solid var(--border);text-transform:uppercase;letter-spacing:.5px}.notes-tab-menu{list-style:none;display:flex;flex-direction:column;gap:10px}.notes-tab-item{width:100%;padding:12px 18px;border-radius:var(--radius-sm);background:none;border:1px solid #fff0;color:var(--text-muted);font-family:var(--font-body);font-weight:600;text-align:left;cursor:pointer;transition:var(--transition-fast);display:flex;align-items:center;gap:10px;text-decoration:none}.cbse-lang-badge:hover{transform:translateY(-1px);box-shadow:0 4px 12px rgb(37 99 235 / .15)}.notes-tab-item svg{width:18px;height:18px;fill:currentColor}.notes-tab-item:hover,.notes-tab-item.active{color:var(--primary);background:var(--primary-transparent);border-color:var(--primary-light)}.notes-content-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:45px;box-shadow:var(--shadow);min-height:500px}.notes-header-meta{margin-bottom:30px;padding-bottom:20px;border-bottom:1px solid var(--border)}.notes-category-crumbs{font-size:.85rem;font-weight:700;color:var(--primary);text-transform:uppercase;margin-bottom:10px;display:flex;gap:8px;align-items:center}.notes-post-title{font-size:2.5rem;font-weight:800;margin-bottom:10px}.notes-tab-content-panel{display:none;animation:fadeIn 0.4s cubic-bezier(.16,1,.3,1) forwards}.notes-tab-content-panel.active{display:block}@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.rich-text-content h2{font-size:1.8rem;margin-top:1.5em;margin-bottom:.8em}.rich-text-content h3{font-size:1.4rem;margin-top:1.5em;margin-bottom:.8em}.rich-text-content p{margin-bottom:1.5em;font-size:1.05rem;color:var(--text-main);overflow-wrap:break-word;word-wrap:break-word;word-break:break-word}.rich-text-content ul,.rich-text-content ol{padding-left:24px;margin-left:0;margin-bottom:1.5em}.rich-text-content ul{list-style-type:disc}.rich-text-content ol{list-style-type:decimal}.rich-text-content li{margin-bottom:8px;padding-left:4px;overflow-wrap:break-word;word-wrap:break-word;word-break:break-word}.rich-text-content ul ul,.rich-text-content ol ol,.rich-text-content ul ol,.rich-text-content ol ul{padding-left:20px;margin-left:0;margin-top:6px;margin-bottom:6px}.rich-text-content a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;font-weight:600;overflow-wrap:break-word;word-wrap:break-word;word-break:break-word}.rich-text-content a:hover{color:var(--primary-light);text-decoration-color:var(--primary-light)}.pdf-download-box{border:2px dashed var(--border);border-radius:var(--radius);padding:40px;text-align:center;background:var(--bg);margin:30px 0;transition:var(--transition)}.pdf-download-box:hover{border-color:var(--primary)}.pdf-icon{font-size:3rem;color:hsl(0 84% 60%);margin-bottom:15px}.pdf-title{font-weight:700;font-size:1.25rem;margin-bottom:10px}.pdf-btn{display:inline-flex;align-items:center;gap:10px;background:var(--accent);color:#fff;padding:15px 35px;border-radius:30px;font-weight:700;cursor:pointer;box-shadow:var(--shadow);transition:var(--transition);border:none;font-family:var(--font-body)}.pdf-btn:hover{background:var(--accent-light);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-hover)}.source-resource-box{border:2px dashed var(--border);border-radius:var(--radius);padding:40px;text-align:center;background:var(--bg-card);margin:30px 0;transition:var(--transition)}.source-resource-box:hover{border-color:var(--primary)}.source-icon{font-size:3rem;color:var(--primary);margin-bottom:15px}.source-icon.video-icon{color:hsl(0 84% 60%)}.source-icon.document-icon{color:hsl(210 84% 50%)}.source-icon.web-icon{color:hsl(150 84% 40%)}.source-resource-title{font-weight:700;font-size:1.25rem;margin-bottom:10px;color:var(--text)}.cbse-source-muted{font-size:.9rem;color:var(--text-muted);margin-bottom:25px;line-height:1.6}.source-btn{display:inline-flex;align-items:center;gap:10px;background:var(--accent);color:#fff;padding:15px 35px;border-radius:30px;font-weight:700;cursor:pointer;box-shadow:var(--shadow);transition:var(--transition);border:none;font-family:var(--font-body);text-decoration:none}.source-btn:hover{background:var(--accent-light);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-hover)}.cbse-video-wrapper{position:relative;padding-bottom:56.25%;height:0;overflow:hidden;max-width:100%;background:#000;border-radius:var(--radius-sm);box-shadow:var(--shadow);margin-bottom:20px}.cbse-video-wrapper iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:0}.quiz-widget-container{max-width:700px;margin:20px auto}.quiz-progress-bar-wrapper{height:6px;background:var(--border);border-radius:3px;overflow:hidden;margin-bottom:30px}.quiz-progress-bar-fill{height:100%;width:0%;background:linear-gradient(to right,var(--primary),var(--accent));transition:width 0.3s ease}.quiz-card{border:1px solid var(--border);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);margin-bottom:35px}.quiz-question-number{font-size:.85rem;font-weight:700;color:var(--primary);text-transform:uppercase;margin-bottom:10px}.quiz-question-text{font-size:1.3rem;font-weight:700;margin-bottom:25px}.quiz-options-list{display:flex;flex-direction:column;gap:15px}.quiz-option-btn{width:100%;padding:15px 20px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg-card);color:var(--text-main);font-family:var(--font-body);font-size:1rem;font-weight:600;text-align:left;cursor:pointer;transition:var(--transition-fast)}.quiz-option-btn:hover{border-color:var(--primary);background:var(--primary-transparent)}.quiz-option-btn.selected{border-color:var(--primary);background:var(--primary-transparent);box-shadow:0 0 0 2px var(--primary)}.quiz-option-btn.correct{border-color:var(--cbse-s);background:rgb(16 185 129 / .1);box-shadow:0 0 0 2px var(--cbse-s);color:var(--cbse-s)}.quiz-option-btn.incorrect{border-color:var(--cbse-c);background:rgb(230 57 70 / .1);box-shadow:0 0 0 2px var(--cbse-c);color:var(--cbse-c)}.quiz-control-bar{display:flex;justify-content:flex-end}.quiz-next-btn{background:var(--primary);color:#fff;border:none;padding:12px 30px;border-radius:var(--radius-sm);font-weight:600;cursor:pointer;font-family:var(--font-body);transition:var(--transition)}.quiz-next-btn:hover{background:var(--primary-light)}.quiz-score-screen{text-align:center;padding:40px 20px}.quiz-score-circle{width:150px;height:150px;border-radius:50%;border:8px solid var(--accent);display:flex;align-items:center;justify-content:center;font-size:2.5rem;font-weight:800;margin:0 auto 30px auto;font-family:var(--font-heading)}.site-footer{background:var(--bg-card);border-top:1px solid var(--border);padding:60px 0 30px 0;margin-top:80px}.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:40px;margin-bottom:50px}.footer-widget-title{font-size:1.1rem;font-weight:800;margin-bottom:20px;text-transform:uppercase;letter-spacing:.5px;color:var(--text-main)!important}.footer-links-list{list-style:none;display:flex;flex-direction:column;gap:12px}.footer-links-list a{color:var(--text-muted)!important;font-weight:500;font-size:.95rem}.footer-links-list a:hover{color:var(--primary)!important}.footer-bottom{border-top:1px solid var(--border);padding-top:30px;display:flex;justify-content:space-between;align-items:center;color:var(--text-muted);font-size:.9rem}.footer-social-links{display:flex;gap:12px;margin-bottom:5px;align-items:center}.social-icon-link{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:var(--bg);border:1px solid var(--border);color:var(--text-muted);transition:var(--transition)}.social-icon-link svg{transition:transform 0.2s ease}.social-icon-link:hover{color:#fff;transform:translateY(-3px);box-shadow:var(--shadow-hover)}.social-icon-link:hover svg{transform:scale(1.1)}.social-icon-link.youtube:hover{background:red;border-color:red}.social-icon-link.telegram:hover{background:#08c;border-color:#08c}.social-icon-link.whatsapp:hover{background:#25d366;border-color:#25d366}.social-icon-link.instagram:hover{background:linear-gradient(45deg,#f09433 0%,#e6683c 25%,#dc2743 50%,#cc2366 75%,#bc1888 100%);border-color:#fff0}@media (max-width:991px){.notes-layout-wrapper{display:grid;grid-template-columns:1fr;gap:20px;padding:20px 0}.notes-sidebar{grid-column:1;grid-row:1;position:static;margin-bottom:20px;width:100%}.notes-content-area{grid-column:1;grid-row:2;width:100%}.notes-nav-card{padding:12px 15px;border-radius:var(--radius-sm)}.notes-nav-title{font-size:.95rem;margin-bottom:12px;padding-bottom:6px}.notes-tab-menu{display:flex;flex-direction:row;flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;gap:8px;padding-bottom:6px;margin:0;list-style:none;scrollbar-width:none}.notes-tab-menu::-webkit-scrollbar{display:none}.notes-tab-menu li{flex:0 0 auto;margin:0;padding:0}.notes-tab-item{width:auto;white-space:nowrap;padding:8px 16px;font-size:.88rem;border-radius:20px;border:1px solid var(--border);background:var(--bg);color:var(--text-muted)}.notes-tab-item.active{background:var(--primary-transparent);border-color:var(--primary);color:var(--primary)}}@media (max-width:768px){.container{width:100%;padding:0 15px}.notes-content-card{padding:25px 20px;border-radius:var(--radius-sm);min-height:auto}.notes-post-title{font-size:1.65rem}.hero-title{font-size:2.2rem}.hero-subtitle{font-size:1.05rem}.mobile-menu-toggle-btn{display:inline-flex}.main-navigation{display:none;position:absolute;top:100%;left:0;right:0;background:var(--bg-card)!important;border-bottom:1px solid var(--border);flex-direction:column;align-items:stretch;padding:20px;gap:15px;box-shadow:var(--shadow-hover);z-index:999}.main-navigation.open{display:flex}.main-navigation ul{flex-direction:column;width:100%;margin:0;padding:0}.main-navigation li{width:100%;border-bottom:1px solid var(--border);position:relative}.main-navigation li:last-child{border-bottom:none}.main-navigation a{display:block;padding:12px 0;width:100%}.main-navigation ul.sub-menu{position:static;display:none;opacity:1!important;visibility:visible!important;box-shadow:none;padding:5px 0 5px 15px;border-left:2px solid var(--primary);margin:5px 0 10px 0;width:100%;transform:none!important;min-width:0;pointer-events:auto;background:none;border:none;border-left:2px solid var(--primary);height:auto!important;min-height:0!important}.main-navigation ul.sub-menu a{padding:10px 0;font-size:.95rem;font-weight:500;border-bottom:none;color:var(--text-main)!important;display:block}.main-navigation ul.sub-menu a:hover{background:none;padding-left:5px;color:var(--primary)!important}.main-navigation ul.sub-menu li{border-bottom:none;margin:0;padding:0;height:auto}.main-navigation ul.sub-menu ul{display:block;padding-left:12px;margin:5px 0;border-left:1px dashed var(--border)}.main-navigation li.open>ul.sub-menu{display:block}.main-navigation li.menu-item-has-children>a::after{float:right;transition:transform 0.2s ease}.main-navigation li.menu-item-has-children.open>a::after{transform:rotate(180deg)}.site-logo-icon{height:32px;width:74px}.logo-divider-line{height:28px}.logo-title{font-size:1.05rem}.logo-tagline{font-size:.6rem}.site-footer{text-align:center}.footer-links-list{align-items:center}.footer-social-links{justify-content:center}.footer-bottom{flex-direction:column;gap:15px;text-align:center}}@media (max-width:480px){.notes-content-card{padding:20px 12px}.notes-post-title{font-size:1.35rem}.hero-title{font-size:1.75rem}.logo-tagline{display:none}.logo-divider-line{display:none}.site-logo-icon{height:28px;width:65px}.logo-title{font-size:.95rem}.header-actions{gap:8px}.theme-toggle-btn span{display:none}.theme-toggle-btn{padding:6px 10px;font-size:.8rem}.mobile-menu-toggle-btn{padding:6px}.search-wrapper input{padding:15px 15px;font-size:.95rem}.search-wrapper button{padding:8px 12px;right:6px;font-size:.9rem}.popular-tags span{font-size:.8rem}.popular-tags a{padding:4px 12px;font-size:.78rem}.class-grid{gap:20px}.class-card{padding:25px 20px}}.popular-tags{display:flex;justify-content:center;align-items:center;gap:12px;margin-top:25px;flex-wrap:wrap}.popular-tags span{font-size:.9rem;font-weight:700;color:var(--text-muted)}.popular-tags a{font-size:.85rem;font-weight:600;padding:6px 16px;background:var(--bg-card);border:1px solid var(--border);border-radius:20px;color:var(--text-main);box-shadow:var(--shadow);transition:var(--transition-fast)}.popular-tags a:hover{border-color:var(--primary);background:var(--primary-transparent);color:var(--primary);transform:translateY(-1px)}.features-section{padding:60px 0 40px 0}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:25px}.feature-box{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:35px 25px;text-align:center;box-shadow:var(--shadow);transition:var(--transition)}.feature-box:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}.feature-box:nth-child(1):hover{border-color:var(--cbse-c)}.feature-box:nth-child(2):hover{border-color:var(--cbse-b)}.feature-box:nth-child(3):hover{border-color:var(--cbse-s)}.feature-box:nth-child(4):hover{border-color:var(--cbse-e)}.feature-icon-wrapper{width:60px;height:60px;border-radius:50%;margin:0 auto 20px auto;display:flex;align-items:center;justify-content:center}.feature-icon-wrapper svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.feature-icon-wrapper.notes-color{background:rgb(230 57 70 / .1);color:var(--cbse-c)}.feature-icon-wrapper.quiz-color{background:rgb(255 170 0 / .1);color:var(--cbse-b)}.feature-icon-wrapper.pyq-color{background:rgb(16 185 129 / .1);color:var(--cbse-s)}.feature-icon-wrapper.pdf-color{background:rgb(42 117 211 / .1);color:var(--cbse-e)}.feature-box h3{font-size:1.15rem;font-weight:800;margin-bottom:10px;color:var(--text-main)!important}.feature-box p{font-size:.9rem;color:var(--text-muted)!important;line-height:1.5}.stats-section{padding:60px 0;background:var(--primary-transparent);border-top:1px solid var(--border);border-bottom:1px solid var(--border);margin:40px 0}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:30px;text-align:center}.stat-item h3{font-size:2.8rem;font-weight:800;margin-bottom:5px;color:var(--primary)!important;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:#fff0}.stat-item p{font-size:.95rem;font-weight:700;color:var(--text-muted)!important;text-transform:uppercase;letter-spacing:1px}.subjects-list-links{display:flex;flex-wrap:wrap;gap:10px}.subject-link-item{display:inline-flex;align-items:center;justify-content:space-between;padding:10px 14px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-main);font-size:.85rem;font-weight:600;width:100%;transition:var(--transition-fast)}.subject-link-item:hover{background:var(--bg-card);color:var(--primary);padding-left:18px}.class-card:nth-child(4n+1) .subject-link-item:hover{border-color:var(--cbse-c);color:var(--cbse-c)}.class-card:nth-child(4n+2) .subject-link-item:hover{border-color:var(--cbse-b);color:var(--cbse-b)}.class-card:nth-child(4n+3) .subject-link-item:hover{border-color:var(--cbse-s);color:var(--cbse-s)}.class-card:nth-child(4n+4) .subject-link-item:hover{border-color:var(--cbse-e);color:var(--cbse-e)}.subject-link-item span{font-size:.75rem;font-weight:700;background:var(--bg-card);border:1px solid var(--border);color:var(--text-muted);padding:2px 8px;border-radius:4px;transition:var(--transition-fast)}.subject-link-item:hover span{background:var(--primary-transparent);color:var(--primary);border-color:var(--primary)}.class-card:nth-child(4n+1) .subject-link-item:hover span{background:rgb(230 57 70 / .1);color:var(--cbse-c);border-color:var(--cbse-c)}.class-card:nth-child(4n+2) .subject-link-item:hover span{background:rgb(255 170 0 / .15);color:var(--cbse-b);border-color:var(--cbse-b)}.class-card:nth-child(4n+3) .subject-link-item:hover span{background:rgb(16 185 129 / .1);color:var(--cbse-s);border-color:var(--cbse-s)}.class-card:nth-child(4n+4) .subject-link-item:hover span{background:rgb(42 117 211 / .1);color:var(--cbse-e);border-color:var(--cbse-e)}.faq-section{padding:80px 0 40px 0;max-width:800px;margin:0 auto}.faq-title{text-align:center;font-size:2.2rem;font-weight:800;margin-bottom:40px;color:var(--text-main)!important}.faq-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:15px;overflow:hidden;box-shadow:var(--shadow);transition:var(--transition)}.faq-item:hover{border-color:var(--primary-light)}.faq-question{width:100%;background:none;border:none;padding:20px 25px;text-align:left;font-family:var(--font-heading);font-size:1.05rem;font-weight:700;color:var(--text-main)!important;cursor:pointer;display:flex;justify-content:space-between;align-items:center}.faq-question svg{width:18px;height:18px;transition:transform 0.3s ease;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.faq-item.active .faq-question svg{transform:rotate(180deg)}.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.3s ease-out,padding 0.3s ease-out;padding:0 25px;font-size:.95rem;color:var(--text-muted)!important;line-height:1.6}.faq-answer p{color:var(--text-muted)!important}.faq-item.active .faq-answer{max-height:200px;padding-bottom:25px}.cbse-related-content-box{background:var(--bg-card);border:1px solid var(--border);border-left:4px solid var(--primary);border-radius:var(--radius-sm);padding:18px 22px;margin:30px 0;box-shadow:var(--shadow);transition:var(--transition-fast)}.cbse-related-content-box:hover{box-shadow:var(--shadow-hover);border-left-color:var(--accent);transform:translateY(-1px)}.cbse-related-label{display:inline-flex;align-items:center;gap:6px;font-size:.75rem;font-weight:805;text-transform:uppercase;color:var(--accent);margin-bottom:8px;letter-spacing:.8px}.cbse-related-title{font-family:var(--font-heading);font-size:1.1rem;margin:0;line-height:1.4;font-weight:700}.cbse-related-title a{color:var(--text-main)!important;text-decoration:none!important;transition:var(--transition-fast)}.cbse-related-title a:hover{color:var(--primary)!important}@media (max-width:480px){.cbse-related-content-box{padding:14px 16px;margin:20px 0}.cbse-related-title{font-size:.98rem}}.rich-text-content table,.TyagGW_tableContainer table,.TyagGW_tableWrapper table,div[class*="tableContainer"] table,div[class*="tableWrapper"] table{width:100%!important;min-width:100%!important;max-width:100%!important;border-collapse:collapse;margin:0!important;font-size:.95rem;table-layout:auto!important;box-sizing:border-box!important}.rich-text-content th,.rich-text-content td,.TyagGW_tableContainer th,.TyagGW_tableContainer td,.TyagGW_tableWrapper th,.TyagGW_tableWrapper td,table th,table td{padding:10px 14px!important;border:1px solid var(--border)!important;text-align:left;overflow-wrap:break-word!important;word-wrap:break-word!important;word-break:break-word!important;white-space:normal!important;box-sizing:border-box!important}.rich-text-content th,table th{background-color:#1e3a8a!important;color:#ffffff!important;font-weight:700}.rich-text-content tr:nth-child(even),table tr:nth-child(even){background-color:hsl(220 20% 97% / .4)}html[data-theme="dark"] .rich-text-content tr:nth-child(even),html[data-theme="dark"] table tr:nth-child(even){background-color:hsl(232 22% 14% / .4)}.TyagGW_tableContainer,.TyagGW_tableWrapper,.table-container,div[class*="tableContainer"],div[class*="tableWrapper"]{width:100%!important;max-width:100%!important;min-width:0!important;overflow-x:auto!important;display:block!important;-webkit-overflow-scrolling:touch;margin:20px 0!important;border-radius:var(--radius-sm);border:1px solid var(--border)!important;box-sizing:border-box!important}.TyagGW_tableContainer .TyagGW_tableWrapper,div[class*="tableContainer"] div[class*="tableWrapper"]{border:none!important;margin:0!important;padding:0!important;overflow:visible!important;width:100%!important;max-width:100%!important;display:block!important}.TyagGW_tableWrapper.flex,div[class*="tableWrapper"].flex{display:block!important}.rich-text-content .w-fit,.notes-content-card .w-fit,.TyagGW_tableWrapper.w-fit,table.w-fit{width:100%!important;max-width:100%!important;min-width:0!important}.rich-text-content .min-w-\(--thread-content-width\),.notes-content-card .min-w-\(--thread-content-width\),table[class*="min-w-"]{min-width:0!important}.cbse-ad-slot{display:flex;justify-content:center;align-items:center;width:100%;max-width:1200px;margin:0 auto;padding:15px 20px;box-sizing:border-box;overflow:hidden;text-align:center}.cbse-ad-slot:empty{display:none;padding:0;margin:0;min-height:0}.cbse-ad-below-header{min-height:90px;background:var(--bg);border-bottom:1px solid var(--border)}.cbse-ad-above-footer{min-height:90px;background:var(--bg);border-top:1px solid var(--border)}.cbse-ad-before-title{min-height:90px;margin-bottom:15px;border-radius:var(--radius-sm);background:var(--bg)}.cbse-ad-after-title{min-height:250px;margin-bottom:20px;border-radius:var(--radius-sm);background:var(--bg)}.cbse-ad-after-notes{min-height:250px;margin:25px 0;border-radius:var(--radius-sm);background:var(--bg)}.cbse-ad-sidebar-sticky{position:sticky;top:110px;min-height:250px;margin-top:20px;border-radius:var(--radius-sm);background:var(--bg);border:1px solid var(--border);padding:10px}.cbse-ad-between-tabs{min-height:90px;margin:20px 0;border-radius:var(--radius-sm);background:var(--bg)}.cbse-ad-after-hero{min-height:90px;margin:10px auto 0}.cbse-ad-after-features{min-height:250px;margin:0 auto;padding:20px}.cbse-ad-after-stats{min-height:90px;margin:0 auto;padding:15px 20px}.cbse-ad-before-grid{min-height:90px;margin-bottom:20px;border-radius:var(--radius-sm);background:var(--bg)}.cbse-ad-in-feed{min-height:90px;border-radius:var(--radius-sm);background:var(--bg);border:1px dashed var(--border)}.cbse-ad-after-grid{min-height:90px;margin-top:10px;border-radius:var(--radius-sm);background:var(--bg)}@media (max-width:768px){.cbse-ad-slot{padding:10px 15px}.cbse-ad-sidebar-sticky{position:relative;top:auto;min-height:100px}.cbse-ad-below-header,.cbse-ad-above-footer,.cbse-ad-before-title,.cbse-ad-between-tabs,.cbse-ad-before-grid,.cbse-ad-after-grid,.cbse-ad-in-feed,.cbse-ad-after-hero,.cbse-ad-after-stats{min-height:50px}.cbse-ad-after-title,.cbse-ad-after-notes,.cbse-ad-after-features{min-height:100px}}.cbse-toc-card{margin:20px 0;padding:20px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);display:none}.cbse-toc-title{font-size:1rem;margin-bottom:12px;padding-bottom:8px;border-bottom:1px solid var(--border);text-transform:uppercase;letter-spacing:.05em}.cbse-toc-list{list-style:none;padding:0;margin:0;font-size:.95rem;line-height:1.8}.cbse-toc-list li{border-bottom:1px solid var(--border);padding:4px 0}.cbse-toc-list li.has-sub{padding-left:10px;opacity:.8}.cbse-toc-list a{color:var(--text-main);text-decoration:none;font-size:.8rem;display:block;line-height:1.4}.cbse-nav-card{margin-top:12px}.cbse-nav-card-first{margin-top:0}.cbse-nav-title-sm{font-size:.8rem;text-transform:uppercase;letter-spacing:.05em}.cbse-info-list{list-style:none;padding:0;margin:0;font-size:.85rem;line-height:2}.cbse-info-list li{display:flex;justify-content:space-between;border-bottom:1px solid var(--border);padding-bottom:4px}.cbse-info-list li:last-child{border-bottom:none}.cbse-info-label{color:var(--text-muted)}.cbse-related-list{list-style:none;padding:0;margin:0}.cbse-related-list li{border-bottom:1px solid var(--border);padding:6px 0}.cbse-related-list a{font-size:.82rem;color:var(--text-main);text-decoration:none;line-height:1.4;display:block}.cbse-share-grid{display:flex;flex-direction:column;gap:8px}.cbse-btn-block{display:flex;align-items:center;gap:8px;width:100%;padding:9px 12px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;font-family:var(--font-body);font-size:.85rem;color:var(--text-main);text-align:left;text-decoration:none}.cbse-btn-block:hover{background:var(--bg-card-hover)}.cbse-btn-share{font-weight:600;text-decoration:none}.cbse-btn-share-wa{background:#25D366;color:#fff}.cbse-btn-share-wa:hover{background:#20bd5a;color:#fff}.cbse-btn-share-tg{background:#229ED9;color:#fff}.cbse-btn-share-tg:hover{background:#1e8ec2;color:#fff}.cbse-notify-card{margin-top:12px;text-align:center;padding:14px}.cbse-notify-icon{font-size:1.8rem;margin-bottom:6px}.cbse-notify-text{font-size:.8rem;color:var(--text-muted);margin:0 0 10px 0;line-height:1.5}.cbse-notify-btn{width:100%;padding:9px;background:var(--primary);color:#fff;border:none;border-radius:var(--radius-sm);cursor:pointer;font-family:var(--font-body);font-weight:700;font-size:.85rem}.cbse-pdf-muted{margin-bottom:20px;color:var(--text-muted)}.cbse-sidebar-ad-wrap{margin-top:12px}.footer-about-text{font-size:.9rem;color:var(--text-muted)}.cbse-box,.box{border-radius:14px;padding:16px 20px 14px;margin:22px 0;border:1.5px solid;position:relative;box-sizing:border-box;transition:transform 0.15s ease,box-shadow 0.15s ease}.cbse-box .cbse-box-lbl,.cbse-box .lbl,.box .lbl{font-weight:800;font-size:.95rem;letter-spacing:.03em;display:flex;align-items:center;gap:8px;margin-bottom:8px}.cbse-box p:last-child,.cbse-box ul:last-child,.cbse-box ol:last-child,.box p:last-child,.box ul:last-child,.box ol:last-child{margin-bottom:0}.cbse-box.cbse-define,.cbse-box.define,.box.define{background:#f0f9ff;border-color:#38bdf8;border-width:2px}.cbse-box.cbse-define .cbse-box-lbl,.cbse-box.define .lbl,.box.define .lbl{color:#0284c7}.cbse-box .cbse-box-tag,.box.define .tagline{position:absolute;top:-12px;right:16px;background:#0284c7;color:#fff;font-size:.75rem;font-weight:700;border-radius:9999px;padding:2px 12px}.cbse-box.cbse-activity,.cbse-box.example,.box.example{background:#f0fdf4;border-color:#4ade80;border-width:2px}.cbse-box.cbse-activity .cbse-box-lbl,.cbse-box.example .lbl,.box.example .lbl{color:#16a34a}.cbse-activity-step{margin:6px 0;font-size:.95rem;line-height:1.7}.cbse-box.cbse-tip,.cbse-box.tip,.box.tip{background:#fffbeb;border-color:#fcd34d}.cbse-box.cbse-tip .cbse-box-lbl,.cbse-box.tip .lbl,.box.tip .lbl{color:#d97706}.cbse-box.cbse-warn,.cbse-box.warn,.box.warn{background:#fff1f2;border-color:#fda4af}.cbse-box.cbse-warn .cbse-box-lbl,.cbse-box.warn .lbl,.box.warn .lbl{color:#e11d48}.cbse-box.cbse-formula,.cbse-box.formula,.box.formula{background:#faf5ff;border-color:#d8b4fe;text-align:center}.cbse-box.cbse-formula .cbse-box-lbl,.cbse-box.formula .lbl,.box.formula .lbl{color:#7c3aed;justify-content:center}.cbse-box.cbse-formula .cbse-eq,.box.formula .eq{margin:8px 0;font-size:1.15rem}.cbse-box.cbse-trick,.cbse-box.trick,.box.trick{background:#fdf2f8;border-color:#f472b6}.cbse-box.cbse-trick .cbse-box-lbl,.cbse-box.trick .lbl,.box.trick .lbl{color:#db2777}.cbse-box.cbse-trick .mn,.box.trick .mn{font-weight:700;color:#9d174d;font-size:1.05rem}[data-theme="dark"] .cbse-box.cbse-define,[data-theme="dark"] .box.define{background:rgb(2 132 199 / .12);border-color:rgb(56 189 248 / .4)}[data-theme="dark"] .cbse-box.cbse-activity,[data-theme="dark"] .box.example{background:rgb(22 163 74 / .12);border-color:rgb(74 222 128 / .4)}[data-theme="dark"] .cbse-box.cbse-tip,[data-theme="dark"] .box.tip{background:rgb(217 119 6 / .12);border-color:rgb(252 211 77 / .4)}[data-theme="dark"] .cbse-box.cbse-warn,[data-theme="dark"] .box.warn{background:rgb(225 29 72 / .12);border-color:rgb(253 164 175 / .4)}[data-theme="dark"] .cbse-box.cbse-formula,[data-theme="dark"] .box.formula{background:rgb(124 58 237 / .12);border-color:rgb(216 180 254 / .4)}[data-theme="dark"] .cbse-box.cbse-trick,[data-theme="dark"] .box.trick{background:rgb(219 39 119 / .12);border-color:rgb(244 114 182 / .4)}.cbse-resource-bar{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 24px 0;padding:12px 14px;background:#f8fafc;border:1px solid #e2e8f0;border-radius:14px}.cbse-resource-pill{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:9999px;background:#fff;border:1px solid #cbd5e1;color:#1e293b;font-size:.85rem;font-weight:700;text-decoration:none;cursor:pointer;font-family:inherit;transition:all 0.2s ease}.cbse-resource-pill:hover,.cbse-resource-pill.is-active{background:#2563eb;border-color:#2563eb;color:#fff}[data-theme="dark"] .cbse-resource-bar{background:rgb(30 41 59 / .6);border-color:rgb(255 255 255 / .1)}[data-theme="dark"] .cbse-resource-pill{background:rgb(15 23 42 / .8);border-color:rgb(255 255 255 / .15);color:#cbd5e1}[data-theme="dark"] .cbse-resource-pill:hover,[data-theme="dark"] .cbse-resource-pill.is-active{background:#3b82f6;border-color:#3b82f6;color:#fff}.wp-block-table,.cbse-table-container,.cbse-table-wrapper{width:100%!important;max-width:100%!important;overflow-x:auto!important;-webkit-overflow-scrolling:touch!important;margin:1.5rem 0!important;border:1px solid var(--border,#cbd5e1)!important;border-radius:var(--radius-sm,10px)!important;background:var(--bg-card,#ffffff);box-shadow:0 1px 3px rgb(0 0 0 / .05)}.wp-block-table table,.cbse-table-container table,.cbse-table-wrapper table{width:100%!important;min-width:600px!important;border-collapse:collapse!important;table-layout:auto!important;margin:0!important}.wp-block-table th,.cbse-table-container th,.cbse-table-wrapper th{white-space:nowrap!important;padding:12px 14px!important;background:#1e40af!important;color:#ffffff!important;font-weight:700!important;font-size:.95rem;border:1px solid rgb(255 255 255 / .2)!important}.wp-block-table td:first-child,.cbse-table-container td:first-child,.cbse-table-wrapper td:first-child,.wp-block-table th:first-child,.cbse-table-container th:first-child,.cbse-table-wrapper th:first-child{min-width:150px!important;max-width:200px!important;width:24%!important;white-space:normal!important;word-break:normal!important;overflow-wrap:normal!important;font-weight:700!important;background:#f8fafc!important;color:#0f172a!important;border-right:2px solid var(--border,#cbd5e1)!important}.wp-block-table td,.cbse-table-container td,.cbse-table-wrapper td{padding:11px 14px!important;font-size:.92rem;line-height:1.6;border:1px solid var(--border,#e2e8f0)!important;vertical-align:middle}[data-theme="dark"] .wp-block-table,[data-theme="dark"] .cbse-table-container,[data-theme="dark"] .cbse-table-wrapper{background:#0f172a;border-color:#334155!important}[data-theme="dark"] .wp-block-table th,[data-theme="dark"] .cbse-table-container th{background:#1e3a8a!important;color:#ffffff!important}[data-theme="dark"] .wp-block-table td:first-child,[data-theme="dark"] .cbse-table-container td:first-child{background:#1e293b!important;color:#f1f5f9!important;border-right-color:#334155!important}[data-theme="dark"] .wp-block-table td,[data-theme="dark"] .cbse-table-container td{border-color:#334155!important;color:#cbd5e1!important}.katex-display{display:block!important;margin:1.25rem 0!important;padding:10px 8px!important;overflow-x:auto!important;overflow-y:hidden!important;max-width:100%!important;text-align:center!important;-webkit-overflow-scrolling:touch!important}.katex-display::-webkit-scrollbar{height:5px}.katex-display::-webkit-scrollbar-track{background:rgb(0 0 0 / .04);border-radius:4px}.katex-display::-webkit-scrollbar-thumb{background:#94a3b8;border-radius:4px}.cbse-diagram-wrapper{width:100%;overflow-x:hidden}.cbse-diagram-wrapper>div{overflow-x:auto;-webkit-overflow-scrolling:touch;max-width:100%}.quiz-review-section{margin-top:35px;padding-top:25px;border-top:2px solid var(--border,#e2e8f0);text-align:left}.quiz-review-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;margin-bottom:20px}.quiz-review-title{font-size:1.35rem;font-weight:800;color:var(--primary,#1e3a8a);margin:0}.quiz-filter-bar{display:flex;gap:8px;flex-wrap:wrap}.quiz-filter-chip{padding:6px 12px;border-radius:20px;border:1px solid var(--border,#cbd5e1);background:var(--bg-card,#ffffff);color:var(--text-main,#334155);font-size:.82rem;font-weight:600;cursor:pointer;transition:all 0.2s}.quiz-filter-chip.active{background:#2563eb;border-color:#2563eb;color:#fff}.quiz-review-card{background:var(--bg-card,#ffffff);border:1px solid var(--border,#e2e8f0);border-radius:12px;padding:18px 20px;margin-bottom:16px;box-shadow:0 1px 3px rgb(0 0 0 / .04);transition:transform 0.15s}.quiz-review-card.correct-card{border-left:5px solid #16a34a}.quiz-review-card.incorrect-card{border-left:5px solid #dc2626}.quiz-review-qnum{display:flex;justify-content:space-between;font-size:.85rem;font-weight:700;margin-bottom:6px}.quiz-status-badge{padding:2px 8px;border-radius:4px;font-size:.78rem;font-weight:700}.quiz-status-badge.correct{background:#dcfce7;color:#15803d}.quiz-status-badge.incorrect{background:#fee2e2;color:#b91c1c}.quiz-review-qtext{font-size:1.05rem;font-weight:700;color:var(--text-main,#0f172a);margin:6px 0 14px 0;line-height:1.5}.quiz-review-options{display:flex;flex-direction:column;gap:8px;margin-bottom:14px}.quiz-review-opt{padding:9px 14px;border-radius:8px;border:1px solid var(--border,#e2e8f0);font-size:.92rem;line-height:1.4;display:flex;justify-content:space-between;align-items:center}.quiz-review-opt.is-correct-ans{background:#f0fdf4;border-color:#86efac;color:#166534;font-weight:700}.quiz-review-opt.is-user-wrong{background:#fef2f2;border-color:#fca5a5;color:#991b1b;font-weight:700}.quiz-review-exp{background:#f8fafc;border-radius:8px;padding:12px 14px;font-size:.88rem;color:#334155;border-left:3px solid #3b82f6;line-height:1.6}[data-theme="dark"] .quiz-review-card{background:#1e293b;border-color:#334155}[data-theme="dark"] .quiz-review-exp{background:#0f172a;color:#cbd5e1}[data-theme="dark"] .quiz-review-opt{border-color:#334155}[data-theme="dark"] .quiz-review-opt.is-correct-ans{background:rgb(22 101 52 / .2);border-color:#16a34a;color:#86efac}[data-theme="dark"] .quiz-review-opt.is-user-wrong{background:rgb(185 28 28 / .2);border-color:#ef4444;color:#fca5a5}.cbse-steps-container{background:var(--bg-card,#f8fafc)!important;border:1px solid var(--border,#e2e8f0)!important;color:var(--text-main,#0f172a)!important;border-radius:12px!important;padding:18px 20px!important;margin:18px 0!important;transition:background 0.2s ease,border-color 0.2s ease,color 0.2s ease}[data-theme="dark"] .cbse-steps-container{background:#1e293b!important;border-color:#334155!important;color:#f1f5f9!important}[data-theme="dark"] .cbse-steps-container p,[data-theme="dark"] .cbse-steps-container strong,[data-theme="dark"] .cbse-steps-container span{color:#f1f5f9!important}.chapter-overview-dashboard{background:linear-gradient(135deg,#f8fafc 0%,#eff6ff 100%);border:1px solid #dbeafe;border-radius:16px;padding:22px 24px;margin-bottom:35px;box-shadow:0 4px 20px -2px rgb(37 99 235 / .06);transition:background 0.2s ease,border-color 0.2s ease}[data-theme="dark"] .chapter-overview-dashboard{background:linear-gradient(135deg,#1e293b 0%,#0f172a 100%)!important;border-color:#334155!important;box-shadow:0 4px 20px -2px rgb(0 0 0 / .4)!important}[data-theme="dark"] .chapter-overview-dashboard .dashboard-title{color:#93c5fd!important}[data-theme="dark"] .chapter-overview-dashboard div,[data-theme="dark"] .chapter-overview-dashboard span{border-color:#334155!important}[data-theme="dark"] .chapter-overview-dashboard span[style*="background: #ffffff"],[data-theme="dark"] .chapter-overview-dashboard div[style*="background: #ffffff"]{background:#1e293b!important;color:#60a5fa!important;border-color:#3b82f6!important}[data-theme="dark"] .chapter-overview-dashboard div[style*="background: rgba(255,255,255"],[data-theme="dark"] .chapter-overview-dashboard div[style*="background: rgba(255, 255, 255"]{background:rgb(30 41 59 / .85)!important;border-color:#334155!important;color:#cbd5e1!important}[data-theme="dark"] .chapter-overview-dashboard div[style*="background: rgba(255,255,255"] strong,[data-theme="dark"] .chapter-overview-dashboard div[style*="background: rgba(255, 255, 255"] strong{color:#93c5fd!important}.cbse-answerkey-accordion{margin-top:35px;margin-bottom:30px;background:var(--bg-card,#ffffff);border:1px solid var(--border,#e2e8f0);border-radius:14px;padding:18px 24px;box-shadow:0 4px 15px -3px rgb(0 0 0 / .04);transition:background 0.2s ease,border-color 0.2s ease}.cbse-answerkey-accordion summary{cursor:pointer;font-size:1.15rem;font-weight:800;color:var(--primary,#1e3a8a);padding:8px 0;outline:none;list-style:none;display:flex;align-items:center;justify-content:space-between;user-select:none}[data-theme="dark"] .cbse-answerkey-accordion{background:#1e293b!important;border-color:#334155!important;box-shadow:0 4px 15px -3px rgb(0 0 0 / .4)!important}[data-theme="dark"] .cbse-answerkey-accordion summary{color:#93c5fd!important}[data-theme="dark"] .cbse-answerkey-accordion summary span[style*="background: #eff6ff"]{background:#0f172a!important;border-color:#3b82f6!important;color:#93c5fd!important}[data-theme="dark"] .cbse-answerkey-accordion div{border-color:#334155!important}[data-theme="dark"] .cbse-mcq-item{border-bottom-color:#334155!important}[data-theme="dark"] .cbse-mcq-item h3{color:#93c5fd!important}[data-theme="dark"] .cbse-mcq-item div[style*="background: var(--bg"],[data-theme="dark"] .cbse-mcq-item div[style*="background: #f8fafc"]{background:#0f172a!important;border-color:#334155!important;color:#e2e8f0!important}[data-theme="dark"] .cbse-mcq-item div[style*="background: #f0fdf4"]{background:rgb(22 101 52 / .25)!important;border-left-color:#22c55e!important;color:#86efac!important}[data-theme="dark"] .cbse-mcq-item div[style*="background: #f0fdf4"] span{color:#cbd5e1!important}[data-theme="dark"] .cbse-mcq-item div[style*="background: #f0fdf4"] strong{color:#86efac!important}[data-theme="dark"] .cbse-question-card,[data-theme="dark"] .cbse-qa-item{background:#1e293b!important;border-color:#334155!important;color:#f1f5f9!important}[data-theme="dark"] .cbse-question-card .cbse-q-title,[data-theme="dark"] .cbse-qa-item h3,[data-theme="dark"] .cbse-qa-item .cbse-q-title{color:#93c5fd!important}[data-theme="dark"] .cbse-question-card .cbse-a-text,[data-theme="dark"] .cbse-qa-item .cbse-a-text{color:#cbd5e1!important}[data-theme="dark"] .cbse-question-card div[style*="background: #f8fafc"],[data-theme="dark"] .cbse-qa-item div[style*="background: #f8fafc"]{background:#0f172a!important;border-color:#334155!important;color:#cbd5e1!important}[data-theme="dark"] .cbse-exam-tip-box{background:rgb(30 58 138 / .25)!important;border-color:#1e40af!important;color:#bfdbfe!important}.cbse-diagram-wrapper{margin:28px 0;background:var(--bg-card,#ffffff);border:1px solid var(--border,#cbd5e1);border-radius:12px;padding:18px;box-shadow:0 4px 6px -1px rgb(0 0 0 / .05);transition:background 0.2s ease,border-color 0.2s ease}[data-theme="dark"] .cbse-diagram-wrapper{background:#1e293b!important;border-color:#334155!important;box-shadow:0 4px 15px -3px rgb(0 0 0 / .5)!important}[data-theme="dark"] .cbse-diagram-wrapper svg rect:first-child{fill:#1e293b!important}[data-theme="dark"] .cbse-diagram-wrapper div[style*="color: #334155"]{color:#cbd5e1!important}[data-theme="dark"] .cbse-mindmap{background:#1e293b!important;border-color:#334155!important;color:#f1f5f9!important}[data-theme="dark"] .cbse-mindmap span,[data-theme="dark"] .cbse-mindmap div{color:#cbd5e1!important}[data-theme="dark"] .cbse-chapter-nav-grid{background:#0f172a!important;border-color:#334155!important}[data-theme="dark"] .cbse-chapter-nav-grid a[style*="background: #ffffff"]{background:#1e293b!important;border-color:#334155!important;color:#93c5fd!important}[data-theme="dark"] .cbse-checklist-grid div[style*="background: #f8fafc"]{background:#1e293b!important;border-color:#334155!important;color:#f1f5f9!important}[data-theme="dark"] .wp-block-table table,[data-theme="dark"] .cbse-table-container table,[data-theme="dark"] table.cbse-table{background:#0f172a!important;border-color:#334155!important;color:#e2e8f0!important}[data-theme="dark"] .wp-block-table th,[data-theme="dark"] .cbse-table-container th,[data-theme="dark"] table.cbse-table th{background:#1e3a8a!important;color:#ffffff!important;border-color:#334155!important}[data-theme="dark"] .wp-block-table td,[data-theme="dark"] .cbse-table-container td,[data-theme="dark"] table.cbse-table td{border-color:#334155!important;color:#cbd5e1!important}[data-theme="dark"] .wp-block-table tr[style*="background: #f8fafc"],[data-theme="dark"] .cbse-table-container tr[style*="background: #f8fafc"],[data-theme="dark"] .wp-block-table td[style*="background: #f8fafc"],[data-theme="dark"] .cbse-table-container td[style*="background: #f8fafc"]{background:#1e293b!important;color:#f1f5f9!important}[data-theme="dark"] .wp-block-table td:first-child,[data-theme="dark"] .cbse-table-container td:first-child{background:#1e293b!important;color:#f1f5f9!important;border-right-color:#334155!important}[data-theme="dark"] .katex{color:#f1f5f9!important}[data-theme="dark"] .cbse-eq{background:transparent!important;color:#f1f5f9!important}.cbse-table-container,.wp-block-table,.cbse-table-wrapper,.rich-text-content div[style*="overflow-x:auto"],.rich-text-content div[style*="overflow-x: auto"],div[style*="overflow-x:auto"],div[style*="overflow-x: auto"]{width:100%!important;max-width:100%!important;overflow-x:auto!important;-webkit-overflow-scrolling:touch!important;display:block!important;margin:20px 0!important;border-radius:8px!important}.rich-text-content table,.wp-block-table table,.cbse-table-container table,table.cbse-table,.cbse-table,table{width:100%!important;min-width:650px!important;border-collapse:collapse!important}table th,.rich-text-content table th,.wp-block-table th,.cbse-table-container th,table.cbse-table th,.cbse-table th{background:#1e3a8a!important;color:#ffffff!important;font-weight:700!important;padding:12px 14px!important;border:1px solid rgb(255 255 255 / .25)!important;text-align:left!important}.rich-text-content table th:first-child,.rich-text-content table td:first-child,.wp-block-table th:first-child,.wp-block-table td:first-child,.cbse-table-container th:first-child,.cbse-table-container td:first-child,table.cbse-table th:first-child,table.cbse-table td:first-child,.cbse-table th:first-child,.cbse-table td:first-child{min-width:140px!important;width:150px!important;word-break:normal!important;white-space:normal!important;font-weight:700!important}.rich-text-content table td:first-child,.wp-block-table td:first-child,.cbse-table-container td:first-child,table.cbse-table td:first-child{background-color:#f8fafc!important;color:#0f172a!important;border-right:2px solid #cbd5e1!important}[data-theme="dark"] .rich-text-content table td:first-child,[data-theme="dark"] .wp-block-table td:first-child,[data-theme="dark"] .cbse-table-container td:first-child,[data-theme="dark"] table.cbse-table td:first-child{background-color:#1e293b!important;color:#f1f5f9!important;border-right:2px solid #334155!important}[data-theme="dark"] table,[data-theme="dark"] .rich-text-content table,[data-theme="dark"] .cbse-table-container table,[data-theme="dark"] table.cbse-table{background:#0f172a!important;border-color:#334155!important;color:#e2e8f0!important}[data-theme="dark"] table td,[data-theme="dark"] .rich-text-content table td,[data-theme="dark"] .cbse-table-container td,[data-theme="dark"] table.cbse-table td{border-color:#334155!important;color:#cbd5e1!important}[data-theme="dark"] table tr:nth-child(even),[data-theme="dark"] .rich-text-content table tr:nth-child(even),[data-theme="dark"] .cbse-table-container tr:nth-child(even),[data-theme="dark"] table.cbse-table tr:nth-child(even){background-color:hsl(232 22% 14% / .4)!important}#cbse-progress-bar{position:fixed;top:0;left:0;height:3px;width:0%;background:linear-gradient(90deg,var(--primary,#4f46e5),#06b6d4);z-index:9999;transition:width .1s linear;border-radius:0 2px 2px 0;box-shadow:0 0 8px rgb(79 70 229 / .5)}.cbse-float-share{position:fixed;left:0;top:50%;transform:translateY(-50%);z-index:9000;display:flex;flex-direction:column;align-items:flex-start;gap:0}.cbse-float-toggle{width:42px;height:42px;background:var(--primary,#4f46e5);color:#fff;border:none;border-radius:0 8px 8px 0;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:2px 2px 10px rgb(0 0 0 / .2);transition:background .2s,transform .2s;flex-shrink:0;margin-bottom:4px}.cbse-float-toggle:hover{background:var(--primary-dark,#3730a3);transform:scale(1.08)}.cbse-float-toggle svg line{fill:none}.cbse-float-items{display:flex;flex-direction:column;gap:4px;overflow:hidden;max-height:0;opacity:0;transition:max-height .35s ease,opacity .25s ease;pointer-events:none}.cbse-float-share.open .cbse-float-items{max-height:260px;opacity:1;pointer-events:auto}.cbse-float-btn{width:42px;height:42px;border-radius:0 8px 8px 0;display:flex;align-items:center;justify-content:center;text-decoration:none;color:#fff;border:none;cursor:pointer;box-shadow:2px 2px 8px rgb(0 0 0 / .15);transition:transform .2s,opacity .2s}.cbse-float-btn:hover{transform:scale(1.1)}.cbse-fs-wa{background:#25D366}.cbse-fs-tg{background:#229ED9}.cbse-fs-fb{background:#1877F2}.cbse-fs-copy{background:#6b7280}#cbse-scroll-top{position:fixed;bottom:28px;right:22px;width:44px;height:44px;background:var(--primary,#4f46e5);color:#fff;border:none;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 14px rgb(0 0 0 / .25);opacity:0;transform:translateY(20px);transition:opacity .3s,transform .3s,background .2s;z-index:9000}#cbse-scroll-top.visible{opacity:1;transform:translateY(0)}#cbse-scroll-top:hover{background:var(--primary-dark,#3730a3)}@media (max-width:480px){.cbse-float-share{display:none}}