.layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);background:var(--bg-primary);border-right:1px solid var(--border-color);padding:var(--spacing-lg);display:flex;flex-direction:column}.logo{margin-bottom:var(--spacing-xl)}.logo h1{margin:0;font-size:var(--font-xl);font-weight:var(--font-bold);color:var(--color-primary)}.portal-label{font-size:var(--font-xs);color:var(--text-tertiary)}.teacher-welcome{padding:var(--spacing-sm) var(--spacing-md);margin-bottom:var(--spacing-sm);font-size:var(--font-sm);color:var(--text-primary);font-weight:var(--font-medium);border-bottom:1px solid var(--border-color)}.sidebar nav{display:flex;flex-direction:column;gap:var(--spacing-xs);flex:1}.sidebar nav a{color:var(--text-secondary);text-decoration:none;padding:var(--spacing-md);border-radius:var(--radius-md);font-weight:var(--font-medium);transition:all var(--transition-fast)}.sidebar nav a:hover{background:var(--bg-tertiary);color:var(--text-primary)}.sidebar nav a.active{background:var(--color-primary-light);color:var(--color-primary)}.sidebar nav a.student-nav-item{padding:var(--spacing-sm) var(--spacing-md) var(--spacing-sm) var(--spacing-xl);font-size:var(--font-sm);color:var(--text-tertiary);font-weight:var(--font-normal)}.sidebar nav a.student-nav-item:hover{color:var(--text-primary);background:var(--bg-tertiary)}.sidebar nav a.student-nav-item.active{background:var(--color-primary-light);color:var(--color-primary)}.sidebar-footer{margin-top:auto;padding-top:var(--spacing-lg);border-top:1px solid var(--border-color)}.logout-btn{width:100%;padding:var(--spacing-sm) var(--spacing-md);background:transparent;border:1px solid var(--border-color);color:var(--text-secondary);border-radius:var(--radius-md);font-size:var(--font-sm);font-weight:var(--font-medium);transition:all var(--transition-fast)}.logout-btn:hover{background:var(--bg-tertiary);color:var(--text-primary);border-color:var(--border-color-dark)}.content{flex:1;padding:var(--spacing-xl);background:var(--bg-secondary);overflow-y:auto}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg-secondary);padding:var(--spacing-md)}.login-card{background:var(--bg-primary);padding:var(--spacing-xl);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);width:100%;max-width:400px}.login-header{text-align:center;margin-bottom:var(--spacing-xl)}.login-header h1{margin:0;font-size:var(--font-2xl);font-weight:var(--font-bold);color:var(--color-primary)}.login-header span{font-size:var(--font-sm);color:var(--text-secondary)}.form-group{margin-bottom:var(--spacing-md)}.form-group label{display:block;margin-bottom:var(--spacing-xs);font-size:var(--font-sm);font-weight:var(--font-medium);color:var(--text-secondary)}.form-group input,.form-group select,.form-group textarea{width:100%;padding:var(--spacing-sm) var(--spacing-md);border:1px solid var(--border-color);border-radius:var(--radius-md);font-size:var(--font-md);color:var(--text-primary);background:var(--bg-primary);transition:border-color var(--transition-fast)}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--color-primary)}.form-group input::placeholder,.form-group textarea::placeholder{color:var(--text-tertiary)}.checkbox-label{display:flex;align-items:center;gap:var(--spacing-xs);padding:var(--spacing-xs) var(--spacing-sm);border:1px solid var(--border-color);border-radius:var(--radius-md);font-size:var(--font-sm);color:var(--text-primary);cursor:pointer;transition:all var(--transition-fast)}.checkbox-label input[type=checkbox]{width:auto;margin:0}.checkbox-label input[type=checkbox]:checked+span{color:var(--color-primary);font-weight:var(--font-medium)}.error-message{padding:var(--spacing-sm) var(--spacing-md);background:var(--color-error-bg);color:var(--color-error);border-radius:var(--radius-md);font-size:var(--font-sm);margin-bottom:var(--spacing-md)}button[type=submit]{width:100%;padding:var(--spacing-sm) var(--spacing-md);background:var(--color-primary);color:var(--text-inverse);border:none;border-radius:var(--radius-md);font-size:var(--font-md);font-weight:var(--font-medium);cursor:pointer;transition:background var(--transition-fast);margin-top:var(--spacing-sm)}button[type=submit]:hover{background:var(--color-primary-hover)}button[type=submit]:disabled{opacity:.6;cursor:not-allowed}.register-link{text-align:center;margin-top:var(--spacing-lg);font-size:var(--font-sm);color:var(--text-secondary)}.register-link a{color:var(--color-primary);font-weight:var(--font-medium)}.register-link a:hover{text-decoration:underline}.dashboard h1{margin:0 0 var(--spacing-lg);font-size:var(--font-2xl);font-weight:var(--font-bold);color:var(--text-primary)}.dashboard h2{margin:var(--spacing-xl) 0 var(--spacing-md);font-size:var(--font-lg);font-weight:var(--font-semibold);color:var(--text-primary)}.stats-grid{display:flex;gap:var(--spacing-md);flex-wrap:wrap}.stat-card{background:var(--bg-primary);padding:var(--spacing-lg);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;align-items:center;min-width:150px}.stat-value{font-size:var(--font-3xl);font-weight:var(--font-bold);color:var(--color-primary)}.stat-label{font-size:var(--font-sm);color:var(--text-secondary);margin-top:var(--spacing-xs)}.subject-grid{display:flex;gap:var(--spacing-md);flex-wrap:wrap}.subject-card{background:var(--bg-primary);padding:var(--spacing-lg);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;min-width:160px}.subject-name{font-size:var(--font-md);font-weight:var(--font-semibold);color:var(--text-primary)}.subject-count{font-size:var(--font-sm);color:var(--text-secondary);margin-top:var(--spacing-xs)}.empty-message{color:var(--text-tertiary);font-style:italic}.students-page h1{margin:0 0 var(--spacing-xs);font-size:var(--font-2xl);font-weight:var(--font-bold);color:var(--text-primary)}.student-count{color:var(--text-secondary);font-size:var(--font-sm);margin-bottom:var(--spacing-lg)}.students-table{width:100%;background:var(--bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border-collapse:collapse;overflow:hidden}.students-table th{text-align:left;padding:var(--spacing-md);background:var(--bg-tertiary);color:var(--text-secondary);font-size:var(--font-xs);font-weight:var(--font-semibold);text-transform:uppercase;letter-spacing:.5px;border-bottom:1px solid var(--border-color)}.th-sub{display:block;font-weight:400;font-size:10px;text-transform:none;color:var(--text-tertiary);letter-spacing:0}.students-table td{padding:var(--spacing-md);border-bottom:1px solid var(--border-color);font-size:var(--font-sm);color:var(--text-primary)}.students-table tbody tr:last-child td{border-bottom:none}.clickable-row{cursor:pointer;transition:background var(--transition-fast)}.clickable-row:hover{background:var(--bg-tertiary)}.subject-badge{color:var(--color-primary);font-weight:var(--font-medium)}.proficiency{display:inline-block;padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--radius-full);font-size:var(--font-xs);font-weight:var(--font-semibold)}.proficiency.high{background:var(--color-success-bg);color:var(--color-success)}.proficiency.medium{background:var(--color-warning-bg);color:var(--color-warning)}.proficiency.low{background:var(--color-error-bg);color:var(--color-error)}.proficiency.none{background:var(--bg-tertiary);color:var(--text-tertiary)}.spark-cell{display:flex;align-items:center;gap:var(--spacing-sm)}.spark-bars{display:flex;align-items:flex-end;gap:2px;height:24px;width:52px}.spark-bar{flex:1;min-height:2px;border-radius:1px}.spark-total{font-size:var(--font-xs);color:var(--text-secondary);font-weight:var(--font-medium);white-space:nowrap}@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2) format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff) format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff) format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff) format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2) format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff) format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2) format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff) format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2) format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff) format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2) format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff) format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2) format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff) format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2) format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff) format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff) format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff) format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff) format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2) format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff) format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2) format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff) format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2) format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff) format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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) format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff) format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2) format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff) format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2) format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff) format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.28"}.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 .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}.dp-container{display:flex;flex-direction:column;gap:var(--spacing-lg)}.dp-loading{display:flex;justify-content:center;padding:var(--spacing-xl)}.dp-loading-sm{display:flex;justify-content:center;padding:var(--spacing-md)}.dp-spinner{width:32px;height:32px;border:3px solid var(--border-color);border-top-color:var(--color-primary);border-radius:50%;animation:dp-spin .8s linear infinite}@keyframes dp-spin{to{transform:rotate(360deg)}}.dp-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--spacing-md)}.dp-stat-card{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-xs);padding:var(--spacing-md);background:var(--bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);text-align:center}.dp-stat-value{font-size:var(--font-2xl);font-weight:var(--font-bold);color:var(--text-primary)}.dp-stat-value.dp-streak{color:var(--color-warning)}.dp-stat-label{font-size:var(--font-xs);color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px}.dp-stat-sub{font-size:10px;color:var(--text-tertiary);margin-top:-2px}.dp-page-header{margin-bottom:8px}.dp-page-title{font-size:28px;font-weight:700;color:var(--text-primary);margin:0}.dp-tabs{display:flex;gap:4px;margin-bottom:24px;border-bottom:1px solid var(--border-color)}.dp-tab{padding:12px 24px;border:none;background:none;font-size:14px;font-weight:500;color:var(--text-secondary);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px;transition:all .2s}.dp-tab:hover{color:var(--text-primary)}.dp-tab.active{color:var(--color-primary);border-bottom-color:var(--color-primary)}.dp-card{background:var(--bg-primary);border-radius:var(--radius-lg);padding:var(--spacing-lg);box-shadow:var(--shadow-sm)}.dp-card-title{font-size:var(--font-md);font-weight:var(--font-semibold);color:var(--text-primary);margin:0 0 var(--spacing-md)}.dp-trends{display:flex;flex-direction:column;gap:var(--spacing-lg)}.dp-chart-controls{display:flex;gap:var(--spacing-md);margin-bottom:var(--spacing-md);flex-wrap:wrap}.dp-control-group{display:flex;align-items:center;gap:var(--spacing-xs)}.dp-control-label{font-size:var(--font-xs);color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;font-weight:var(--font-medium)}.dp-select{padding:var(--spacing-xs) var(--spacing-sm);border:1px solid var(--border-color);border-radius:var(--radius-md);background:var(--bg-secondary);color:var(--text-primary);font-size:var(--font-sm);cursor:pointer;outline:none}.dp-select:focus{border-color:var(--color-primary)}.dp-chart-container{margin-top:var(--spacing-sm)}.dp-chart-hint{text-align:center;font-size:var(--font-xs);color:var(--text-tertiary);margin:var(--spacing-sm) 0 0}.dp-empty{text-align:center;color:var(--text-secondary);padding:var(--spacing-xl);margin:0}.dp-subject-filter{display:flex;gap:var(--spacing-xs);flex-wrap:wrap;margin-bottom:var(--spacing-md)}.dp-filter-btn{padding:var(--spacing-xs) var(--spacing-sm);border:1.5px solid var(--border-color);background:transparent;color:var(--text-secondary);font-size:var(--font-sm);border-radius:var(--radius-full);cursor:pointer;transition:all .2s}.dp-filter-btn.active{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.dp-drilldown{animation:dp-fadeIn .3s ease}@keyframes dp-fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.dp-module-breakdown{display:flex;flex-direction:column;gap:var(--spacing-md)}.dp-question-details{border-top:1px solid var(--border-color);padding-top:var(--spacing-md);animation:dp-fadeIn .2s ease}.dp-details-title{font-size:var(--font-md);font-weight:var(--font-semibold);color:var(--text-primary);margin:0 0 var(--spacing-sm)}.dp-attempts-table{display:flex;flex-direction:column;font-size:var(--font-sm)}.dp-table-header{display:grid;grid-template-columns:2fr 1.5fr 1fr 1fr;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);font-weight:var(--font-semibold);color:var(--text-secondary);border-bottom:1px solid var(--border-color);font-size:var(--font-xs);text-transform:uppercase}.dp-table-row{display:grid;grid-template-columns:2fr 1.5fr 1fr 1fr;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);border-bottom:1px solid var(--border-color);align-items:center}.dp-table-row:last-child{border-bottom:none}.dp-q-id{color:var(--text-secondary);font-family:monospace;font-size:var(--font-xs)}.dp-assessment{font-weight:var(--font-medium);font-size:var(--font-xs);padding:2px var(--spacing-sm);border-radius:var(--radius-full);text-align:center;width:fit-content}.dp-assessment-correct{background:var(--color-success-bg);color:var(--color-success)}.dp-assessment-partially_correct{background:var(--color-warning-bg);color:var(--color-warning)}.dp-assessment-incorrect{background:var(--color-error-bg);color:var(--color-error)}.dp-q-score{font-weight:var(--font-semibold);color:var(--text-primary)}.dp-q-time{color:var(--text-secondary)}.dp-questions-tab{display:flex;flex-direction:column;gap:var(--spacing-md)}.dp-rq-list{display:flex;flex-direction:column;gap:var(--spacing-sm)}.dp-rq-item{background:var(--bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden;transition:box-shadow .2s}.dp-rq-item.expanded{box-shadow:var(--shadow-md)}.dp-rq-header{padding:var(--spacing-md);cursor:pointer;display:flex;flex-direction:column;gap:var(--spacing-sm);transition:background .15s}.dp-rq-header:hover{background:var(--bg-secondary)}.dp-rq-top{display:flex;align-items:flex-start;gap:var(--spacing-sm)}.dp-rq-expand-icon{color:var(--text-tertiary);font-size:10px;margin-top:4px;flex-shrink:0}.dp-rq-preview{font-size:var(--font-sm);color:var(--text-primary);line-height:1.4;flex:1;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.dp-rq-meta{display:flex;flex-wrap:wrap;gap:var(--spacing-sm);align-items:center;font-size:var(--font-xs);color:var(--text-secondary);padding-left:18px}.dp-rq-subject{background:var(--bg-secondary);padding:2px var(--spacing-sm);border-radius:var(--radius-full);font-weight:var(--font-medium)}.dp-rq-module{color:var(--text-tertiary)}.dp-rq-scores{font-weight:var(--font-medium)}.dp-rq-time,.dp-rq-date{color:var(--text-tertiary)}.dp-rq-attempts-count{color:var(--color-primary);font-weight:var(--font-medium)}.dp-rq-attempts{border-top:1px solid var(--border-color);background:var(--bg-tertiary);animation:dp-fadeIn .2s ease}.dp-rq-attempts-header{display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1fr .5fr;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);font-size:var(--font-xs);font-weight:var(--font-semibold);color:var(--text-secondary);text-transform:uppercase;border-bottom:1px solid var(--border-color)}.dp-rq-attempt-row{display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1fr .5fr;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);border-bottom:1px solid var(--border-color);align-items:center;font-size:var(--font-sm);background:var(--bg-primary);transition:background .15s}.dp-rq-attempt-row:last-child{border-bottom:none}.dp-rq-attempt-row.clickable{cursor:pointer}.dp-rq-attempt-row.clickable:hover{background:var(--bg-secondary)}.dp-rq-attempt-date{display:flex;align-items:center;gap:var(--spacing-xs);color:var(--text-primary)}.dp-rq-latest-badge{font-size:9px;padding:1px 6px;background:var(--color-primary);color:#fff;border-radius:var(--radius-full);text-transform:uppercase;font-weight:var(--font-semibold)}.dp-rq-score{font-weight:var(--font-medium);color:var(--text-primary)}.dp-rq-arrow{color:var(--text-tertiary);font-size:var(--font-lg)}.dp-modules-tab,.dp-ms-list{display:flex;flex-direction:column;gap:var(--spacing-lg)}.dp-ms-subject{background:var(--bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden}.dp-ms-subject-header{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-md) var(--spacing-lg);border-bottom:1px solid var(--border-color)}.dp-ms-subject-name{font-size:var(--font-md);font-weight:var(--font-semibold);color:var(--text-primary);margin:0}.dp-ms-subject-summary{display:flex;gap:var(--spacing-md);font-size:var(--font-sm);color:var(--text-secondary)}.dp-ms-table{width:100%;border-collapse:collapse}.dp-ms-table th{text-align:left;padding:var(--spacing-sm) var(--spacing-lg);background:var(--bg-tertiary);color:var(--text-secondary);font-size:var(--font-xs);font-weight:var(--font-semibold);text-transform:uppercase;letter-spacing:.5px}.dp-ms-table td{padding:var(--spacing-sm) var(--spacing-lg);border-bottom:1px solid var(--border-color);font-size:var(--font-sm);color:var(--text-primary)}.dp-ms-table tbody tr:last-child td{border-bottom:none}@media(max-width:640px){.dp-stats{grid-template-columns:repeat(2,1fr)}.dp-table-header,.dp-table-row{grid-template-columns:1.5fr 1fr .8fr .8fr;font-size:var(--font-xs)}}.student-header-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-lg)}.student-detail h1{margin:var(--spacing-xs) 0 0;font-size:var(--font-2xl);font-weight:var(--font-bold);color:var(--text-primary)}.back-link{background:none;border:none;color:var(--color-primary);font-size:var(--font-sm);padding:0;cursor:pointer}.back-link:hover{text-decoration:underline}.student-questions{max-width:1200px}.page-header{margin-bottom:var(--spacing-lg)}.back-btn{background:none;border:none;color:var(--color-primary);font-size:var(--font-sm);cursor:pointer;padding:0;margin-bottom:var(--spacing-sm);display:flex;align-items:center;gap:var(--spacing-xs)}.back-btn:hover{text-decoration:underline}.page-header h1{margin:0;font-size:var(--font-2xl);font-weight:var(--font-bold);color:var(--text-primary)}.subtitle{color:var(--text-secondary);font-size:var(--font-sm);margin:var(--spacing-xs) 0 0}.filters{margin-bottom:var(--spacing-lg)}.subject-filter{padding:var(--spacing-sm) var(--spacing-md);border:1px solid var(--border-color);border-radius:var(--radius-md);font-size:var(--font-sm);background:var(--bg-primary);min-width:150px}.questions-container{display:flex;flex-direction:column;gap:var(--spacing-sm)}.expandable-question{background:var(--bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden}.expandable-question.expanded{box-shadow:var(--shadow-md)}.question-header{display:flex;align-items:center;gap:var(--spacing-md);padding:var(--spacing-md);cursor:pointer;transition:background var(--transition-fast)}.question-header:hover{background:var(--bg-tertiary)}.expand-icon{width:24px;height:24px;display:flex;align-items:center;justify-content:center;background:var(--bg-tertiary);border-radius:var(--radius-sm);font-weight:var(--font-bold);color:var(--text-secondary);flex-shrink:0}.question-main{flex:1;min-width:0}.question-top-row{display:flex;gap:var(--spacing-sm);margin-bottom:var(--spacing-xs)}.question-subject{font-size:var(--font-xs);font-weight:var(--font-semibold);color:var(--color-primary);text-transform:uppercase}.question-type{font-size:var(--font-xs);color:var(--text-tertiary);background:var(--bg-tertiary);padding:2px 6px;border-radius:var(--radius-sm)}.question-difficulty{font-size:var(--font-xs);padding:2px 6px;border-radius:var(--radius-sm);font-weight:var(--font-medium)}.question-difficulty.easy{background:var(--color-success-bg);color:var(--color-success)}.question-difficulty.medium{background:var(--color-warning-bg);color:var(--color-warning)}.question-difficulty.hard{background:var(--color-error-bg);color:var(--color-error)}.question-text{font-size:var(--font-sm);color:var(--text-primary);margin-bottom:var(--spacing-xs);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.question-meta{font-size:var(--font-xs);color:var(--text-tertiary)}.question-scores-summary{display:flex;gap:var(--spacing-sm)}.score-badge{display:flex;flex-direction:column;align-items:center;min-width:40px}.score-badge .score-value{font-size:var(--font-md);font-weight:var(--font-semibold);color:var(--color-primary)}.score-badge .score-label{font-size:var(--font-xs);color:var(--text-tertiary)}.question-status{font-size:var(--font-xs);font-weight:var(--font-semibold);padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--radius-full);flex-shrink:0}.question-status.correct{background:var(--color-success-bg);color:var(--color-success)}.question-status.incorrect{background:var(--color-error-bg);color:var(--color-error)}.attempts-list{padding:var(--spacing-md);border-top:1px solid var(--border-color);background:var(--bg-secondary)}.attempts-list h4{margin:0 0 var(--spacing-md);font-size:var(--font-sm);font-weight:var(--font-semibold);color:var(--text-primary)}.attempts-table{width:100%;border-collapse:collapse;background:var(--bg-primary);border-radius:var(--radius-md);overflow:hidden}.attempts-table th{text-align:left;padding:var(--spacing-sm) var(--spacing-md);background:var(--bg-tertiary);color:var(--text-secondary);font-size:var(--font-xs);font-weight:var(--font-semibold);text-transform:uppercase}.attempts-table td{padding:var(--spacing-sm) var(--spacing-md);border-top:1px solid var(--border-color);font-size:var(--font-sm);color:var(--text-primary)}.attempts-table tr.latest-attempt{background:var(--color-primary-light)}.attempts-table tr.clickable-row{cursor:pointer;transition:background var(--transition-fast)}.attempts-table tr.clickable-row:hover{background:var(--bg-hover)}.attempts-table tr.clickable-row.latest-attempt:hover{background:var(--color-primary-light);filter:brightness(.95)}.latest-badge{display:inline-block;font-size:var(--font-xs);background:var(--color-primary);color:var(--text-inverse);padding:1px 6px;border-radius:var(--radius-sm);margin-left:var(--spacing-xs)}.result-badge{font-size:var(--font-xs);font-weight:var(--font-medium);padding:2px 8px;border-radius:var(--radius-full)}.result-badge.correct{background:var(--color-success-bg);color:var(--color-success)}.result-badge.incorrect{background:var(--color-error-bg);color:var(--color-error)}.loading{color:var(--text-secondary);font-style:italic;padding:var(--spacing-xl)}.empty-message{color:var(--text-tertiary);font-style:italic;text-align:center;padding:var(--spacing-2xl)}.adv-page{max-width:800px;margin:0 auto;padding:var(--spacing-lg)}.adv-header{margin-bottom:var(--spacing-xl)}.adv-back-btn{display:inline-flex;align-items:center;gap:var(--spacing-xs);padding:var(--spacing-xs) var(--spacing-sm);background:transparent;border:none;color:var(--color-primary);font-size:var(--font-sm);cursor:pointer;margin-bottom:var(--spacing-sm)}.adv-back-btn:hover{text-decoration:underline}.adv-header h1{font-size:var(--font-2xl);font-weight:var(--font-bold);color:var(--text-primary);margin:0 0 var(--spacing-xs)}.adv-subtitle{font-size:var(--font-sm);color:var(--text-secondary);margin:0}.adv-section{background:var(--bg-primary);border-radius:var(--radius-lg);padding:var(--spacing-lg);margin-bottom:var(--spacing-lg);box-shadow:var(--shadow-sm)}.adv-section h2{font-size:var(--font-lg);font-weight:var(--font-semibold);color:var(--text-primary);margin:0 0 var(--spacing-md)}.adv-scores-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--spacing-md);margin-bottom:var(--spacing-md)}.adv-score-card{display:flex;flex-direction:column;align-items:center;padding:var(--spacing-md);background:var(--bg-secondary);border-radius:var(--radius-md)}.adv-score-value{font-size:var(--font-2xl);font-weight:var(--font-bold);color:var(--text-primary)}.adv-score-label{font-size:var(--font-xs);color:var(--text-secondary);text-transform:uppercase}.adv-assessment-row,.adv-approach-row{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) 0}.adv-assessment-label,.adv-approach-label{font-weight:var(--font-medium);color:var(--text-secondary)}.adv-assessment-value{padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--radius-full);font-weight:var(--font-semibold);font-size:var(--font-sm)}.adv-assessment-value.correct{background:var(--color-success-bg);color:var(--color-success)}.adv-assessment-value.partially_correct{background:var(--color-warning-bg);color:var(--color-warning)}.adv-assessment-value.incorrect{background:var(--color-error-bg);color:var(--color-error)}.adv-question-meta{display:flex;gap:var(--spacing-sm);flex-wrap:wrap;margin-bottom:var(--spacing-md)}.adv-badge{padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--radius-full);font-size:var(--font-xs);font-weight:var(--font-medium)}.adv-badge.subject{background:var(--color-primary-bg);color:var(--color-primary)}.adv-badge.difficulty{background:var(--bg-secondary);color:var(--text-secondary)}.adv-badge.difficulty.easy{background:var(--color-success-bg);color:var(--color-success)}.adv-badge.difficulty.medium{background:var(--color-warning-bg);color:var(--color-warning)}.adv-badge.difficulty.hard{background:var(--color-error-bg);color:var(--color-error)}.adv-badge.type{background:var(--bg-tertiary);color:var(--text-tertiary)}.adv-question-text{font-size:var(--font-md);color:var(--text-primary);line-height:1.6;white-space:pre-wrap}.adv-question-image{max-width:100%;margin-top:var(--spacing-md);border-radius:var(--radius-md)}.adv-mcq-options{margin-top:var(--spacing-md)}.adv-mcq-options h4{font-size:var(--font-sm);font-weight:var(--font-semibold);color:var(--text-secondary);margin:0 0 var(--spacing-sm)}.adv-mcq-option{display:flex;align-items:flex-start;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);margin-bottom:var(--spacing-xs);border-radius:var(--radius-md);background:var(--bg-secondary);border:2px solid transparent}.adv-mcq-option.correct{border-color:var(--color-success);background:var(--color-success-bg)}.adv-mcq-option.selected{border-color:var(--color-primary)}.adv-mcq-option.selected.correct{border-color:var(--color-success)}.adv-option-label{font-weight:var(--font-semibold);color:var(--text-secondary)}.adv-option-text{flex:1;color:var(--text-primary)}.adv-correct-marker,.adv-selected-marker{font-size:var(--font-xs);padding:2px var(--spacing-xs);border-radius:var(--radius-sm)}.adv-correct-marker{background:var(--color-success);color:#fff}.adv-selected-marker{background:var(--color-primary);color:#fff}.adv-canvas-answer,.adv-typed-answer,.adv-selected-option{padding:var(--spacing-md);background:var(--bg-secondary);border-radius:var(--radius-md)}.adv-canvas-image{max-width:100%;border-radius:var(--radius-md)}.adv-typed-answer p,.adv-selected-option p{margin:0;color:var(--text-primary)}.adv-no-answer{color:var(--text-secondary);font-style:italic}.adv-correct-answer-text{font-size:var(--font-md);color:var(--text-primary);padding:var(--spacing-md);background:var(--color-success-bg);border-radius:var(--radius-md);border-left:4px solid var(--color-success)}.adv-correct-solution{margin-top:var(--spacing-md)}.adv-correct-solution h4{font-size:var(--font-sm);font-weight:var(--font-semibold);color:var(--text-secondary);margin:0 0 var(--spacing-sm)}.adv-correct-solution p{color:var(--text-primary);line-height:1.6;white-space:pre-wrap}.adv-solution-image-container{margin-top:var(--spacing-md)}.adv-solution-image-container h4{font-size:var(--font-sm);font-weight:var(--font-semibold);color:var(--text-secondary);margin:0 0 var(--spacing-sm)}.adv-solution-image{max-width:100%;border-radius:var(--radius-md)}.adv-steps-list{display:flex;flex-direction:column;gap:var(--spacing-md)}.adv-step-item{padding:var(--spacing-md);border-radius:var(--radius-md);border-left:4px solid var(--border-color);background:var(--bg-secondary)}.adv-step-item.correct{border-left-color:var(--color-success)}.adv-step-item.incorrect{border-left-color:var(--color-error)}.adv-step-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-sm)}.adv-step-number{font-weight:var(--font-semibold);color:var(--text-primary)}.adv-step-status{font-size:var(--font-xs);padding:2px var(--spacing-sm);border-radius:var(--radius-full)}.adv-step-status.correct{background:var(--color-success-bg);color:var(--color-success)}.adv-step-status.incorrect{background:var(--color-error-bg);color:var(--color-error)}.adv-step-content{color:var(--text-primary);margin-bottom:var(--spacing-sm)}.adv-step-feedback{font-size:var(--font-sm);color:var(--text-secondary);font-style:italic}.adv-suggestions-list{margin:0;padding-left:var(--spacing-lg);color:var(--text-primary)}.adv-suggestions-list li{margin-bottom:var(--spacing-sm);line-height:1.5}.adv-actions{display:flex;justify-content:center;gap:var(--spacing-md);margin-top:var(--spacing-xl)}.adv-btn{padding:var(--spacing-sm) var(--spacing-xl);border-radius:var(--radius-md);font-size:var(--font-md);font-weight:var(--font-semibold);cursor:pointer;border:none;transition:background .2s,transform .1s}.adv-btn.primary{background:var(--color-primary);color:#fff}.adv-btn.primary:hover{background:var(--color-primary-hover)}.adv-btn:active{transform:scale(.98)}@media(max-width:640px){.adv-scores-grid{grid-template-columns:repeat(2,1fr)}}.cp-page{display:flex;flex-direction:column;gap:var(--spacing-lg)}.cp-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:var(--spacing-md)}.cp-header h1{font-size:var(--font-xl);color:var(--text-primary)}.cp-range-selector{display:flex;gap:2px;background:var(--bg-tertiary);padding:2px;border-radius:var(--radius-md)}.cp-range-btn{padding:var(--spacing-xs) var(--spacing-sm);border:none;background:transparent;color:var(--text-secondary);font-size:var(--font-sm);font-weight:var(--font-medium);border-radius:var(--radius-sm);cursor:pointer}.cp-range-btn.active{background:var(--bg-primary);color:var(--text-primary);box-shadow:var(--shadow-sm)}.cp-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--spacing-md)}.cp-stat{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-xs);padding:var(--spacing-md);background:var(--bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.cp-stat-val{font-size:var(--font-2xl);font-weight:var(--font-bold);color:var(--text-primary)}.cp-stat-lbl{font-size:var(--font-xs);color:var(--text-secondary);text-transform:uppercase}.cp-card{background:var(--bg-primary);border-radius:var(--radius-lg);padding:var(--spacing-lg);box-shadow:var(--shadow-sm)}.cp-card h3{font-size:var(--font-md);color:var(--text-primary);margin-bottom:var(--spacing-md)}.cp-empty{text-align:center;color:var(--text-secondary);padding:var(--spacing-lg)}.loading{padding:var(--spacing-xl);text-align:center;color:var(--text-secondary)}@media(max-width:640px){.cp-stats{grid-template-columns:1fr}}.profile-page h1{margin:0;font-size:var(--font-2xl);font-weight:var(--font-bold);color:var(--text-primary)}.profile-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-lg)}.edit-btn{padding:var(--spacing-sm) var(--spacing-lg);background:var(--color-primary);color:var(--text-inverse);border:none;border-radius:var(--radius-md);font-size:var(--font-sm);font-weight:var(--font-medium);cursor:pointer;transition:background var(--transition-fast)}.edit-btn:hover{background:var(--color-primary-hover)}.profile-card{background:var(--bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:var(--spacing-lg);display:flex;align-items:center;gap:var(--spacing-lg);margin-bottom:var(--spacing-lg)}.profile-avatar{width:64px;height:64px;border-radius:var(--radius-full);background:var(--color-primary);color:var(--text-inverse);display:flex;align-items:center;justify-content:center;font-size:var(--font-2xl);font-weight:var(--font-bold);flex-shrink:0}.profile-info h2{margin:0 0 var(--spacing-xs);font-size:var(--font-xl);font-weight:var(--font-semibold);color:var(--text-primary)}.bio{color:var(--text-secondary);margin:0;font-size:var(--font-sm)}.detail-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--spacing-md)}.detail-card{background:var(--bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:var(--spacing-lg)}.detail-card.full-width{grid-column:1 / -1}.detail-card h3{margin:0 0 var(--spacing-sm);font-size:var(--font-xs);text-transform:uppercase;letter-spacing:.5px;color:var(--text-secondary);font-weight:var(--font-semibold)}.detail-card p{margin:0;color:var(--text-primary);font-size:var(--font-sm)}.tag-list{display:flex;flex-wrap:wrap;gap:var(--spacing-sm)}.tag{background:var(--color-primary-light);color:var(--color-primary);padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--radius-full);font-size:var(--font-sm);font-weight:var(--font-medium)}.past-result{padding:var(--spacing-sm) 0;border-bottom:1px solid var(--border-color);font-size:var(--font-sm);color:var(--text-primary)}.past-result:last-child{border-bottom:none}.profile-form{background:var(--bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:var(--spacing-lg)}.form-section{margin-bottom:var(--spacing-lg)}.form-section label{display:block;margin-bottom:var(--spacing-xs);font-size:var(--font-sm);font-weight:var(--font-medium);color:var(--text-secondary)}.form-section input,.form-section select,.form-section textarea{width:100%;padding:var(--spacing-sm) var(--spacing-md);border:1px solid var(--border-color);border-radius:var(--radius-md);font-size:var(--font-sm);color:var(--text-primary);background:var(--bg-primary);transition:border-color var(--transition-fast)}.form-section textarea{resize:vertical}.form-section input:focus,.form-section select:focus,.form-section textarea:focus{outline:none;border-color:var(--color-primary)}.checkbox-group{display:flex;flex-wrap:wrap;gap:var(--spacing-sm)}.checkbox-label{display:flex;align-items:center;gap:var(--spacing-xs);padding:var(--spacing-xs) var(--spacing-sm);border:1px solid var(--border-color);border-radius:var(--radius-md);font-size:var(--font-sm);cursor:pointer;transition:all var(--transition-fast)}.checkbox-label:hover{border-color:var(--color-primary)}.checkbox-label input[type=checkbox]{width:auto}.location-fields{display:flex;gap:var(--spacing-sm)}.location-fields input{flex:1}.past-result-row{display:flex;gap:var(--spacing-sm);margin-bottom:var(--spacing-sm);align-items:center}.past-result-row input,.past-result-row select{flex:1;padding:var(--spacing-sm);border:1px solid var(--border-color);border-radius:var(--radius-md);font-size:var(--font-sm)}.remove-btn{padding:var(--spacing-xs) var(--spacing-sm);background:var(--color-error-bg);color:var(--color-error);border:1px solid var(--color-error-bg);border-radius:var(--radius-md);cursor:pointer;font-size:var(--font-xs);white-space:nowrap;transition:all var(--transition-fast)}.remove-btn:hover{background:var(--color-error);color:var(--text-inverse)}.add-btn{padding:var(--spacing-sm) var(--spacing-md);background:var(--color-primary-light);color:var(--color-primary);border:1px solid var(--color-primary-light);border-radius:var(--radius-md);cursor:pointer;font-size:var(--font-sm);font-weight:var(--font-medium);margin-top:var(--spacing-xs);transition:all var(--transition-fast)}.add-btn:hover{background:var(--color-primary);color:var(--text-inverse)}.form-actions{display:flex;gap:var(--spacing-sm);justify-content:flex-end;padding-top:var(--spacing-md);border-top:1px solid var(--border-color);margin-top:var(--spacing-sm)}.cancel-btn{padding:var(--spacing-sm) var(--spacing-lg);background:var(--bg-primary);color:var(--text-secondary);border:1px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;font-size:var(--font-sm);font-weight:var(--font-medium);transition:all var(--transition-fast)}.cancel-btn:hover{background:var(--bg-tertiary);color:var(--text-primary)}.save-btn{padding:var(--spacing-sm) var(--spacing-lg);background:var(--color-primary);color:var(--text-inverse);border:none;border-radius:var(--radius-md);cursor:pointer;font-size:var(--font-sm);font-weight:var(--font-medium);transition:background var(--transition-fast)}.save-btn:hover{background:var(--color-primary-hover)}.save-btn:disabled{opacity:.6;cursor:not-allowed}.loading{color:var(--text-secondary);font-style:italic}.error{color:var(--color-error);background:var(--color-error-bg);padding:var(--spacing-md);border-radius:var(--radius-md)}:root{--color-primary: #4f46e5;--color-primary-hover: #4338ca;--color-primary-light: #eef2ff;--color-secondary: #6b7280;--color-secondary-hover: #4b5563;--color-success: #10b981;--color-success-bg: #d1fae5;--color-warning: #f59e0b;--color-warning-bg: #fef3c7;--color-error: #ef4444;--color-error-bg: #fee2e2;--color-info: #3b82f6;--color-info-bg: #dbeafe;--bg-primary: #ffffff;--bg-secondary: #f9fafb;--bg-tertiary: #f3f4f6;--bg-hover: #e5e7eb;--text-primary: #111827;--text-secondary: #6b7280;--text-tertiary: #9ca3af;--text-inverse: #ffffff;--border-color: #e5e7eb;--border-color-dark: #d1d5db;--subject-maths: #8b5cf6;--subject-physics: #3b82f6;--subject-chemistry: #10b981;--subject-biology: #f59e0b;--proficiency-low: #ef4444;--proficiency-medium: #f59e0b;--proficiency-high: #10b981;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--radius-sm: .25rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-full: 9999px;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--font-xs: .75rem;--font-sm: .875rem;--font-md: 1rem;--font-lg: 1.125rem;--font-xl: 1.25rem;--font-2xl: 1.5rem;--font-3xl: 2rem;--font-normal: 400;--font-medium: 500;--font-semibold: 600;--font-bold: 700;--transition-fast: .15s ease;--transition-normal: .2s ease;--sidebar-width: 240px}@media(prefers-color-scheme:dark){:root{--color-primary: #818cf8;--color-primary-hover: #6366f1;--color-primary-light: #1e1b4b;--color-secondary: #9ca3af;--color-secondary-hover: #d1d5db;--color-success: #34d399;--color-success-bg: #064e3b;--color-warning: #fbbf24;--color-warning-bg: #78350f;--color-error: #f87171;--color-error-bg: #7f1d1d;--color-info: #60a5fa;--color-info-bg: #1e3a5f;--bg-primary: #111827;--bg-secondary: #1f2937;--bg-tertiary: #374151;--bg-hover: #4b5563;--text-primary: #f9fafb;--text-secondary: #d1d5db;--text-tertiary: #9ca3af;--text-inverse: #111827;--border-color: #374151;--border-color-dark: #4b5563;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .3);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .4), 0 2px 4px -2px rgb(0 0 0 / .3);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .4), 0 4px 6px -4px rgb(0 0 0 / .3)}}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;background-color:var(--bg-secondary);color:var(--text-primary);line-height:1.5;-webkit-font-smoothing:antialiased}a{color:var(--color-primary);text-decoration:none}button{font-family:inherit;cursor:pointer}input,textarea,select{font-family:inherit;font-size:inherit}#root{min-height:100vh}