@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@500;600&family=Plus+Jakarta+Sans:wght@500;600;700;800&family=Work+Sans:wght@400;500;600&display=swap";:root,[data-ludus-theme=warm]{--ludus-primary: #F5793B;--ludus-primary-hover: #d9621e;--ludus-primary-light: rgba(245, 121, 59, .12);--ludus-primary-fg: #ffffff;--ludus-bg: #FFF7F1;--ludus-surface: #ffffff;--ludus-border: #e8d5c4;--ludus-text: #2E2317;--ludus-text-muted: #8a6a52;--ludus-accent: #1FA98A;--ludus-success: #1FA98A;--ludus-success-light: rgba(31, 169, 138, .12);--ludus-warning: #FBB13C;--ludus-warning-light: rgba(251, 177, 60, .15);--ludus-error: #FF5C5C;--ludus-error-light: rgba(255, 92, 92, .12)}[data-ludus-theme=cool]{--ludus-primary: #4B49A8;--ludus-primary-hover: #3d3c8e;--ludus-primary-light: rgba(75, 73, 168, .12);--ludus-primary-fg: #ffffff;--ludus-bg: #f5f5ff;--ludus-surface: #ffffff;--ludus-border: #ddddf0;--ludus-text: #1a1a2e;--ludus-text-muted: #5a5a7a;--ludus-accent: #1FA98A;--ludus-success: #1FA98A;--ludus-success-light: rgba(31, 169, 138, .12);--ludus-warning: #FBB13C;--ludus-warning-light: rgba(251, 177, 60, .15);--ludus-error: #dc2626;--ludus-error-light: rgba(220, 38, 38, .12)}.ludus-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;font-family:inherit;font-size:14px;font-weight:600;line-height:1;padding:10px 20px;border-radius:8px;border:2px solid transparent;cursor:pointer;white-space:nowrap;-webkit-user-select:none;user-select:none;text-decoration:none;transition:background .15s,color .15s,border-color .15s,box-shadow .15s}.ludus-btn:focus-visible{outline:none;box-shadow:0 0 0 3px var(--ludus-primary-light)}.ludus-btn:disabled,.ludus-btn[aria-disabled=true]{opacity:.45;cursor:not-allowed;pointer-events:none}.ludus-btn--sm{padding:6px 14px;font-size:13px}.ludus-btn--lg{padding:13px 28px;font-size:16px}.ludus-btn--pill{border-radius:9999px}.ludus-btn--primary{background:var(--ludus-primary);color:var(--ludus-primary-fg);border-color:var(--ludus-primary)}.ludus-btn--primary:hover:not(:disabled){background:var(--ludus-primary-hover);border-color:var(--ludus-primary-hover)}.ludus-btn--secondary{background:transparent;color:var(--ludus-primary);border-color:var(--ludus-primary)}.ludus-btn--secondary:hover:not(:disabled){background:var(--ludus-primary-light)}.ludus-btn--ghost{background:transparent;color:var(--ludus-primary);border-color:transparent}.ludus-btn--ghost:hover:not(:disabled){background:var(--ludus-primary-light)}.ludus-field{display:flex;flex-direction:column;gap:6px}.ludus-field__label{font-size:13px;font-weight:600;color:var(--ludus-text);letter-spacing:.01em}.ludus-field__label--required:after{content:" *";color:var(--ludus-error)}.ludus-input{padding:10px 14px;border:1.5px solid var(--ludus-border);border-radius:8px;font-size:14px;font-family:inherit;color:var(--ludus-text);background:var(--ludus-surface);width:100%;box-sizing:border-box;outline:none;transition:border-color .15s,box-shadow .15s}.ludus-input::placeholder{color:var(--ludus-text-muted);font-weight:400}.ludus-input:focus{border-color:var(--ludus-primary);box-shadow:0 0 0 3px var(--ludus-primary-light)}.ludus-input--error{border-color:var(--ludus-error)}.ludus-input--error:focus{border-color:var(--ludus-error);box-shadow:0 0 0 3px var(--ludus-error-light)}.ludus-field__hint{font-size:12px;color:var(--ludus-text-muted)}.ludus-field__error{font-size:12px;color:var(--ludus-error)}.ludus-badge{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:9999px;font-size:12px;font-weight:600;letter-spacing:.02em;white-space:nowrap}.ludus-badge--default{background:var(--ludus-primary-light);color:var(--ludus-primary)}.ludus-badge--success{background:var(--ludus-success-light);color:var(--ludus-success)}.ludus-badge--warning{background:var(--ludus-warning-light);color:#8a5f00}.ludus-badge--error{background:var(--ludus-error-light);color:var(--ludus-error)}.ludus-badge--neutral{background:#00000012;color:var(--ludus-text-muted)}.ludus-avatar{display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:var(--ludus-primary);color:var(--ludus-primary-fg);font-weight:700;font-family:inherit;line-height:1;overflow:hidden;flex-shrink:0}.ludus-avatar--sm{width:28px;height:28px;font-size:11px}.ludus-avatar--md{width:40px;height:40px;font-size:15px}.ludus-avatar--lg{width:56px;height:56px;font-size:21px}.ludus-avatar--xl{width:72px;height:72px;font-size:26px}.ludus-avatar img{width:100%;height:100%;object-fit:cover}.ludus-card{background:var(--ludus-surface);border:1px solid var(--ludus-border);border-radius:16px;padding:24px;box-shadow:0 1px 6px #0000000d}.ludus-card--sm{padding:16px;border-radius:12px}.ludus-card--lg{padding:32px;border-radius:20px}@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;position:relative;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.47"}.katex .katex-mathml{border:0;-webkit-clip-path:inset(50%);clip-path:inset(50%);height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .smash{display:inline;line-height:0}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}.review-shell{min-width:900px;padding:28px 40px 64px}.review-title{align-items:end;color:#1e1e1e;display:flex;justify-content:space-between;margin:0 auto 24px;width:820px}.review-title h1{line-height:1.2;margin:0 0 3px;text-transform:capitalize}.review-title p,.review-title span{color:#5b5b5b;margin:0}.review-loading,.review-error{background:#fff;margin:80px auto;padding:32px;width:760px}.question-pages{display:grid;gap:28px;justify-content:center}.question-page{background:#fff;box-shadow:0 1px 8px #00000029;min-height:300px;padding:48px 58px 54px;width:820px}.question{display:grid;grid-template-columns:36px 1fr;column-gap:14px}.question-header{display:contents}.question-number{font-weight:700;line-height:1.45;grid-column:1}.marks{line-height:1.45;text-align:right;grid-column:2}.question-body{grid-column:2;line-height:1.46}.stem{line-height:1.48;margin:0 0 13px}.display-line{text-align:center}.stem-boxed{border:1px solid #1f1f1f;display:block;margin:14px auto 16px;max-width:100%;padding:10px 16px;text-align:left;width:fit-content}.stem-boxed>div{line-height:1.72;white-space:nowrap}.math{display:inline-block;white-space:nowrap}.math .katex{font-size:.92em}.math-var{font-style:italic}.frac{display:inline-flex;flex-direction:column;font-size:.92em;line-height:1;margin:0 .08em;text-align:center;vertical-align:-.36em}.frac>span:first-child{border-bottom:1px solid currentColor;padding:0 .1em .06em}.frac>span:last-child{padding:.08em .1em 0}.root{display:inline-block;white-space:nowrap}.root-radicand{border-top:1px solid currentColor;padding:0 .08em}sup,sub{font-size:.68em;line-height:0}.sub-parts{display:grid;gap:18px}.sub-part{display:grid;grid-template-columns:30px minmax(0,1fr) max-content;column-gap:4px;position:relative}.sub-part-label{font-weight:700;line-height:1.48}.sub-part-body{min-width:0}.sub-marks{align-self:end;grid-column:3;grid-row:1;line-height:1.48;justify-self:end;text-align:right}.figure-node{margin:12px 0 18px;text-align:center}.figure-art{align-items:center;display:inline-flex;gap:42px;justify-content:center;max-width:100%;vertical-align:top}.figure-note{flex:0 0 auto;line-height:1.12;text-align:left;white-space:nowrap}.figure-svg{display:inline-block;flex:0 1 auto;max-width:100%}.figure-svg svg{display:block;height:auto;max-width:100%;width:var(--figure-width, 520px)}.grid-wrap,.coordinate-grid-wrap,.table-wrap,.number-line-wrap,.tree-wrap{margin:16px 0 20px;text-align:center}.sub-part-body>.grid-wrap,.sub-part-body>.coordinate-grid-wrap,.sub-part-body>.table-wrap{margin-left:-84px;width:calc(100% + 108px)}.question-body>.coordinate-grid-wrap{margin-left:-50px;width:calc(100% + 50px)}.grid-svg,.coordinate-grid,.number-line,.probability-tree{overflow:visible}.coordinate-grid{height:auto;max-width:100%;transform:translate(var(--coord-plot-center-shift, 0px))}.grid-cell{fill:#fff;stroke:#252525;stroke-width:1}.grid-dotted .grid-cell{stroke-dasharray:1 3}.grid-cell.shaded{fill:#d1d1d1}.grid-edge{stroke:#111;stroke-width:2}.grid-line{stroke:#2a2a2a;stroke-width:1}.shape-fill{fill:#f5f5f5}.shape-outline{fill:none;stroke:#111;stroke-width:2}.grid-unit{margin-top:2px}.coord-grid-minor{stroke:#b9b9b9;stroke-width:.7}.coord-grid-minor,.coord-grid-major{stroke-dasharray:4 3}.coord-grid-minor.dotted{stroke-dasharray:1 3}.coord-grid-major{stroke:#858585;stroke-width:.9}.coord-axis,.coord-drawn-line{stroke:#111;stroke-width:1.4}.axis-label{fill:#111}.coord-math-label{overflow:visible}.coord-math-label .math{font-size:var(--coord-label-font-size, 17px);line-height:1;width:100%}.coord-math-label.align-center .math{text-align:center}.coord-math-label.align-left .math{text-align:left}.coord-math-label.align-right .math{text-align:right}.scatter-wrap{display:flex;justify-content:center;margin:18px 0 26px}.scatter-svg{display:block;overflow:visible}.scatter-axis{stroke:#111;stroke-width:1.2}.scatter-axis-label,.scatter-point-dot{fill:#111}.scatter-point-x line{stroke:#111;stroke-linecap:round;stroke-width:1.6}.number-line-axis,.number-line-tick{stroke:#111;stroke-width:1.2}.number-line-axis.axis-dashed{stroke-dasharray:8 7}.number-line-fill{stroke:#111;stroke-linecap:round;stroke-width:5}.number-line-math-label{overflow:visible}.number-line-math-label .math{line-height:1;width:100%}.marker-open{fill:#fff;stroke:#111;stroke-width:2}.marker-closed{fill:#111;stroke:#111;stroke-width:2}.number-set{align-items:center;display:flex;gap:42px;justify-content:center;margin:24px 0 28px}.number-set .math{align-items:center;display:inline-flex;justify-content:center;min-height:34px}.qp-table{border-collapse:collapse;margin:18px auto 22px}.qp-table th,.qp-table td{border:1px solid #202020;height:42px;min-width:44px;padding:6px 7px;text-align:center;vertical-align:middle}.qp-table th{font-weight:400;min-width:36px}.cell-blocked{background:#8e8e8e}.qp-table .math .katex{font-size:.96em}.tree-edge{stroke:#111;stroke-width:1.2}.tree-root{fill:#111}.tree-node-label{background:#fff;display:inline-block;line-height:1.1;padding:0 3px}.tree-prob{background:#fff;display:inline-block;line-height:1.05;padding:0 2px}.tree-input-line{border-bottom:2px dotted #111;display:inline-block;height:12px;width:78px}.working-area{height:calc(var(--working-lines) * 30px);position:relative}.working-mark{bottom:0;line-height:1.48;position:absolute;right:0;white-space:nowrap}.answer-area{display:flex;flex-direction:column;justify-content:flex-end;margin:12px 0 4px;min-height:calc(var(--answer-lines) * 28px)}.answer-right{text-align:right}.answer-parts-area{text-align:left}.answer-row{align-items:flex-end;display:flex;gap:12px;min-height:28px;width:100%}.answer-right .answer-row{justify-content:flex-end}.answer-parts-area .answer-row{justify-content:flex-start}.answer-parts-area .answer-mark{margin-left:auto}.simple-answer,.answer-parts{align-items:flex-start;display:inline-flex;gap:8px;min-height:28px}.simple-answer:has(.answer-full){flex:1 1 auto}.secondary-answer{display:flex;justify-content:flex-end;margin-top:14px}.answer-line,.inline-input{border-bottom:2px dotted #111;display:inline-block;height:20px;vertical-align:baseline}.answer-short{width:58px}.answer-medium{width:132px}.answer-long{width:260px}.answer-full{flex:1 1 auto;width:auto}.answer-mark{white-space:nowrap}.answer-input-wrap{display:inline-block;height:28px;position:relative}.answer-note{font-style:italic;left:0;line-height:1;position:absolute;top:23px}.unknown-node{border:1px dashed #a33;color:#a33;margin:12px 0;padding:8px}@media print{body{background:#fff}.review-shell{min-width:0;padding:0}.review-title{display:none}.question-pages{display:block}.question-page{box-shadow:none;break-after:page;min-height:auto;width:auto}}:root{color-scheme:light;--bg: #fff8f6;--surface: #ffffff;--surface-low: #fff1ec;--surface-mid: #ffe9e1;--surface-high: #f4ded6;--text: #241914;--muted: #574239;--outline: #dec0b4;--primary: #f5793b;--primary-dark: #a23f00;--primary-soft: #ffdbcd;--secondary: #b4252d;--danger: #ba1a1a;--gold: #d38f17;--green: #1fa98a;--blue: #1a56db;--blue-dark: #003fb1;--blue-surface: #f0f3ff;--blue-outline: #c3c5d7;--shadow: 0 12px 32px rgba(162, 63, 0, .12)}*{box-sizing:border-box}html{overflow-y:scroll}body{margin:0;min-width:320px;min-height:calc(100vh + 1px);background:var(--bg);color:var(--text);font-family:Work Sans,Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.student-app{display:flex;flex-direction:column;min-height:100vh}.student-app>main,.student-app>.home-page,.student-app>.report-page-v2{flex:1}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button{cursor:pointer}h1,h2,h3,h4,.student-brand{font-family:Plus Jakarta Sans,system-ui,sans-serif}.student-nav{position:sticky;top:0;z-index:30;height:80px;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:0 48px;background:#fff8f6e0;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid rgba(222,192,180,.55)}.student-brand{display:flex;align-items:center;color:var(--primary-dark);font-weight:800}.student-nav nav{display:flex;align-items:center;gap:28px;color:var(--muted);font-weight:700}.student-nav nav a.active{color:var(--primary-dark)}.student-actions{display:flex;align-items:center;gap:14px}.avatar-dropdown-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:49}.avatar-dropdown{position:absolute;top:calc(100% + 12px);right:0;width:180px;padding:0;border-radius:14px;border:1px solid rgba(222,192,180,.5);background:#fff;box-shadow:0 16px 48px #24191429,0 4px 12px #2419140f;z-index:50;animation:dropdown-in .15s ease;overflow:hidden}@keyframes dropdown-in{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}.avatar-dropdown-header{padding:14px 16px 10px;border-bottom:1px solid rgba(222,192,180,.4)}.avatar-dropdown-header strong{font-size:14px;color:var(--text)}.avatar-dropdown button{width:100%;display:flex;align-items:center;gap:10px;padding:12px 16px;border:0;background:transparent;color:var(--text);font-size:14px;font-weight:600;transition:background .12s ease}.avatar-dropdown button:hover{background:var(--surface-low)}.avatar-dropdown button:last-child{color:var(--danger)}.student-main,.report-page,.report-page-v2{max-width:1280px;margin:0 auto;padding:48px 48px 72px}.report-page-v2{max-width:100%;padding:48px 64px 72px}.rp-top-grid{display:grid;grid-template-columns:minmax(320px,1fr) 1fr;gap:28px;margin-bottom:36px}.rp-score-card{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px;border-radius:16px;background:linear-gradient(135deg,var(--primary-dark),var(--primary));color:#fff;box-shadow:0 16px 40px #a23f0033}.rp-score-label{font-family:JetBrains Mono,monospace;font-size:12px;letter-spacing:.2em;color:#ffffffb3;margin-bottom:20px}.rp-ring-wrap{position:relative;width:200px;height:200px}.rp-ring-wrap svg{width:100%;height:100%;transform:rotate(-90deg)}.rp-ring-center{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center}.rp-ring-center strong{font-size:56px;font-weight:800;line-height:1}.rp-ring-center span{font-size:22px;color:#fff9;margin-top:4px}.rp-pills{display:flex;gap:10px;margin-top:24px}.rp-pills span,.rp-pills strong{padding:6px 14px;border-radius:999px;font-size:13px;font-weight:700}.rp-pills span{background:#ffffff2e}.rp-pills strong{background:#fff;color:var(--primary-dark)}.rp-summary{display:flex;flex-direction:column;justify-content:center;gap:28px;padding:40px;border-radius:16px;border:1px solid var(--outline);background:var(--surface)}.rp-summary-row{display:flex;align-items:center;justify-content:center;gap:32px}.rp-summary-divider{width:1px;height:48px;background:var(--outline)}.rp-summary-item{display:flex;flex-direction:column;align-items:center;gap:6px}.rp-summary-num{font-family:Plus Jakarta Sans,system-ui,sans-serif;font-size:52px;font-weight:800;line-height:1}.rp-summary-num.correct{color:var(--green)}.rp-summary-num.wrong{color:var(--danger)}.rp-summary-label{font-size:15px;color:var(--muted);font-weight:600}.rp-summary-hint{margin:0;text-align:center;color:var(--muted);font-size:13px}.rp-breakdown{padding:56px 64px;border-radius:20px;border:1px solid var(--outline);background:var(--surface);box-shadow:var(--shadow)}.report-question-grid{display:grid;grid-template-columns:repeat(10,1fr);gap:24px}.rq-btn{aspect-ratio:1;display:grid;place-items:center;border-radius:18px;font-size:24px;font-weight:800;text-decoration:none;min-height:64px}.rq-btn.correct{background:#1fa98a1a;color:var(--green);border:1px solid rgba(31,169,138,.2);cursor:pointer;transition:transform .12s ease}.rq-btn.correct:hover{transform:scale(1.05)}.rq-btn.wrong{background:#ba1a1a1a;color:var(--danger);border:2px solid rgba(186,26,26,.3);cursor:pointer;transition:transform .12s ease,box-shadow .12s ease}.rq-btn.wrong:hover{transform:scale(1.1);box-shadow:0 4px 12px #ba1a1a33}.qd-practice-sidebar-btn{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:20px;padding:12px 16px;border-radius:10px;background:var(--danger);color:#fff;font-weight:700;font-size:14px;text-decoration:none;transition:background .12s ease}.qd-practice-sidebar-btn:hover{background:#93000a}.qd-inline-answer{margin-top:32px;padding:20px 24px;border-radius:12px;border:1px dashed var(--outline);background:var(--surface-low)}.qd-inline-answer h4{margin:0 0 10px;font-size:12px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}.qd-inline-answer p{margin:0;font-size:16px;line-height:1.6;color:var(--text)}.qd-workspace{grid-template-columns:1fr!important;justify-items:center;background:#fff}.qd-paper{width:100%;max-width:900px;justify-self:center;background:#fff}.qd-paper .paper-page{background:#fff;min-height:auto;padding:40px 24px;box-shadow:none;border:none}.qd-paper .paper-question{margin-top:0}.qd-surface-wrap{position:relative;width:min(80vw,780px);display:flex;flex-direction:column;align-items:center;background:transparent;border:none;padding:0;margin:0 auto}.question-surface-canvas{display:block;width:100%!important;height:auto!important;background:transparent}.qd-answer-eye{position:absolute;top:8px;right:8px;width:32px;height:32px;display:grid;place-items:center;border-radius:6px;border:1px solid var(--outline);background:#ffffffe6;color:var(--muted);cursor:pointer;transition:color .15s ease,background .15s ease;z-index:10}.qd-answer-eye:hover{color:var(--primary);background:#fff}.qd-answer-slot{position:absolute;height:0;pointer-events:none;font-family:Times New Roman,Times,serif;font-size:16px;line-height:1.2}.qd-student-fill{position:absolute;bottom:2px;left:0;right:0;color:#ba1a1a;font-weight:500}.qd-student-fill.correct{color:#065f46}.qd-correct-fill{position:absolute;top:6px;left:0;right:0;color:#1fa98a;font-weight:600;font-style:italic;pointer-events:none}.qd-correct-fill:before{content:"✓ ";color:#1fa98a;font-style:normal}.teacher-circle{position:absolute;pointer-events:none;z-index:8;transform-origin:center;animation:teacher-mark-in .5s cubic-bezier(.22,.61,.36,1) both;overflow:visible}.teacher-check{position:absolute;pointer-events:none;z-index:8;transform-origin:center;animation:teacher-mark-in .38s cubic-bezier(.22,.61,.36,1) .2s both;overflow:visible}@keyframes teacher-mark-in{0%{opacity:0;stroke-dashoffset:200}40%{opacity:1}to{opacity:1;stroke-dashoffset:0}}.qd-correct-banner{display:flex;align-items:center;gap:10px;margin-top:24px;padding:14px 20px;border-radius:10px;background:#1fa98a1f;border:1px solid rgba(31,169,138,.35);color:#065f46;font-size:16px;font-weight:700}.qd-answer-inline-block{margin-top:20px;padding:20px 24px;border-radius:12px;border:1px solid rgba(31,169,138,.25);background:#1fa98a0a}.qd-answer-inline-block .qd-answer-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.qd-answer-inline-block h4{margin:0;font-size:14px;font-weight:700;color:var(--green)}.qd-answer-inline-block p{margin:0;padding:14px 16px;border-radius:8px;background:#ffffffb3;font-size:15px;line-height:1.7;color:#065f46}.qd-correct-sidebar{padding:4px}.qd-correct-sidebar h4{margin:0;font-size:14px;font-weight:700;color:var(--green)}.qd-answer-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.qd-toggle-answer{display:flex;align-items:center;gap:4px;padding:4px 10px;border:1px solid var(--outline);border-radius:6px;background:var(--surface);font-size:12px;font-weight:600;color:var(--muted);cursor:pointer;transition:background .12s ease}.qd-toggle-answer:hover{background:var(--surface-high)}.qd-correct-sidebar p{margin:0;padding:18px 20px;border-radius:12px;background:#1fa98a0f;border:1px solid rgba(31,169,138,.18);font-size:15px;line-height:1.7;color:#065f46}.qd-status-wrong{color:#ff6b6b;font-style:normal;font-size:13px;font-weight:700}.qd-status-correct{color:#4ade80;font-style:normal;font-size:13px;font-weight:700}.home-page{width:100%;max-width:1280px;margin:0 auto;padding:36px 48px 72px;min-height:calc(100vh + 50px)}.home-hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:36px}.hero-stat{display:flex;align-items:center;gap:18px;padding:28px 32px;border-radius:16px;border:1px solid rgba(222,192,180,.5);background:var(--surface);box-shadow:0 2px 12px #a23f000a}.hero-stat.primary{background:linear-gradient(135deg,#f5793b14,#fbb13c0f);border-color:#f5793b40}.hero-stat.accent{background:linear-gradient(135deg,#1fa98a14,#1fa98a0a);border-color:#1fa98a40}.hero-stat-icon{width:52px;height:52px;display:grid;place-items:center;border-radius:14px;background:#fffc;color:var(--primary);box-shadow:0 2px 8px #0000000d}.hero-stat.accent .hero-stat-icon{color:var(--green)}.hero-stat-content{display:flex;flex-direction:column}.hero-stat-value{font-family:Plus Jakarta Sans,system-ui,sans-serif;font-size:32px;font-weight:800;color:var(--text);line-height:1.1}.hero-stat-value small{font-size:18px;font-weight:600;color:var(--muted)}.hero-stat-label{font-size:15px;color:var(--muted);margin-top:2px}.exam-section{margin-top:8px}.exam-section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.exam-section-header h2{font-size:22px;font-weight:800;margin:0}.exam-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;justify-items:stretch;align-items:stretch}.exam-card-v2{display:flex;flex-direction:column;gap:12px;min-height:200px;min-width:0;width:100%;padding:24px 28px;border:1px solid rgba(222,192,180,.6);border-radius:16px;background:var(--surface);box-shadow:0 2px 12px #a23f000a;transition:transform .16s ease,box-shadow .16s ease}.exam-card-v2:hover{transform:translateY(-3px);box-shadow:0 8px 24px #a23f0014}.exam-card-v2.in-progress{border-color:#f5793b66;background:linear-gradient(180deg,rgba(245,121,59,.04),transparent)}.exam-card-v2.completed{opacity:.82}.exam-card-top{display:flex;align-items:center;justify-content:space-between}.exam-icon-v2{width:44px;height:44px;display:grid;place-items:center;border-radius:12px;background:var(--surface-high);color:var(--primary-dark)}.exam-card-v2.in-progress .exam-icon-v2{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff}.exam-card-v2.completed .exam-icon-v2{background:#1fa98a1f;color:var(--green)}.exam-badge{font-size:12px;font-weight:700;padding:4px 10px;border-radius:999px;background:var(--surface-high);color:var(--muted)}.exam-badge.in-progress{background:#f5793b1f;color:var(--primary)}.exam-badge.completed{background:#1fa98a1a;color:var(--green)}.exam-card-title{font-size:18px;font-weight:700;margin:0;text-align:center}.exam-card-meta{font-size:14px;color:var(--muted);margin:0}.exam-card-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;margin-top:auto;padding:12px 0;border-radius:10px;background:var(--surface-high);color:var(--primary-dark);font-size:15px;font-weight:700;text-decoration:none;transition:background .14s ease}.exam-card-btn:hover{background:var(--primary-soft)}.exam-card-btn.in-progress{background:var(--primary);color:#fff}.exam-card-btn.in-progress:hover{background:var(--primary-dark)}.exam-card-btn.completed{background:transparent;border:1px solid var(--outline);color:var(--muted)}.exam-pagination{display:flex;align-items:center;justify-content:center;gap:18px;margin-top:28px}.exam-pagination button{display:flex;align-items:center;gap:6px;padding:8px 18px;border:1px solid rgba(222,192,180,.6);border-radius:8px;background:var(--surface);font-size:14px;font-weight:600;color:var(--text);cursor:pointer;transition:background .14s ease}.exam-pagination button:hover:not(:disabled){background:var(--surface-low)}.exam-pagination button:disabled{opacity:.4;cursor:not-allowed}.exam-pagination span{font-size:14px;color:var(--muted);font-family:JetBrains Mono,monospace}.hero-card{min-height:360px;display:grid;grid-template-columns:minmax(0,1.25fr) minmax(320px,.75fr);gap:32px;align-items:center;padding:48px;border:1px solid rgba(222,192,180,.6);border-radius:16px;background:var(--surface-low);box-shadow:var(--shadow);overflow:hidden}.hero-card h1{margin:0;font-size:40px}.hero-card h2{margin:12px 0 8px;color:var(--primary-dark);font-size:24px}.hero-card p{max-width:560px;color:var(--muted);font-size:18px;line-height:1.6}.hero-visual{min-height:260px;display:grid;place-items:center;border-radius:14px;background:linear-gradient(135deg,#f5793b1f,#d38f1738),radial-gradient(circle at 50% 50%,#fffc,#fff1ec33)}.paper-panel{width:210px;min-height:230px;display:grid;align-content:start;gap:16px;padding:24px;border-radius:12px;background:#fff;border:1px solid var(--outline);box-shadow:0 20px 40px #a23f0024}.paper-panel span{color:var(--primary-dark);font-family:JetBrains Mono,monospace}.paper-panel strong{font-size:64px;color:var(--primary)}.paper-panel div{height:10px;border-radius:999px;background:var(--surface-high)}.home-grid,.report-grid,.progress-compare{display:grid;grid-template-columns:minmax(0,2fr) minmax(320px,1fr);gap:36px;margin-top:42px;align-items:start}.student-section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:18px}.student-section-head h2{margin:0;font-size:32px}.segmented{position:relative;display:flex;gap:4px;padding:4px;border-radius:999px;background:var(--surface-high)}.segmented button{position:relative;z-index:1;min-height:40px;padding:0 22px;border:0;border-radius:999px;background:transparent;color:var(--muted);font-family:JetBrains Mono,monospace;font-size:15px;font-weight:700;transition:color .2s ease}.segmented button.active{color:#fff;background:transparent}.segmented-slider{position:absolute;top:4px;left:4px;height:calc(100% - 8px);border-radius:999px;background:var(--primary);transition:transform .28s cubic-bezier(.4,0,.2,1),width .28s cubic-bezier(.4,0,.2,1);z-index:0}.exam-list{display:grid;gap:16px}.exam-card{display:grid;grid-template-columns:auto 1fr auto;gap:20px;align-items:center;padding:32px 34px;border:1px solid rgba(222,192,180,.65);border-radius:14px;background:var(--surface);box-shadow:0 4px 18px #a23f000d;transition:transform .16s ease,box-shadow .16s ease}.exam-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.exam-card.in-progress{border-left:4px solid var(--primary)}.exam-card.completed{opacity:.78}.exam-icon{width:56px;height:56px;display:grid;place-items:center;border-radius:12px;color:var(--primary-dark);background:var(--surface-high)}.exam-card.in-progress .exam-icon{color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-dark))}.exam-card.completed .exam-icon{color:var(--green);background:#1fa98a1f}.exam-info h3{margin:0;font-size:20px;font-weight:700}.exam-info p{margin:6px 0 0;color:var(--muted);font-size:15px}.exam-enter-btn{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;border-radius:10px;background:var(--surface-high);color:var(--primary-dark);font-size:16px;font-weight:700;white-space:nowrap;transition:background .14s ease}.exam-enter-btn:hover{background:var(--primary-soft)}.exam-enter-btn.in-progress{background:var(--primary);color:#fff}.exam-enter-btn.in-progress:hover{background:var(--primary-dark)}.exam-enter-btn.completed{background:transparent;border:1px solid var(--outline);color:var(--muted)}.exam-title-line{display:flex;align-items:center;flex-wrap:wrap;gap:10px}.exam-title-line h3{margin:0;font-size:22px}.exam-title-line span{padding:4px 10px;border-radius:999px;background:#d38f17;color:#4a2f00;font-size:12px;font-weight:800}.exam-card p{margin:6px 0 0;color:var(--muted)}.exam-action{display:flex;align-items:center;gap:18px}.exam-action>span{color:var(--gold);font-weight:800;white-space:nowrap}.exam-action a{min-width:44px;height:44px;padding:0 16px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--surface-high);color:var(--primary-dark);font-weight:800}.exam-card.in-progress .exam-action a{background:var(--primary);color:#fff}.stats-column{display:grid;gap:28px}.progress-card,.tip-card,.breakdown-card,.progress-compare article,.weakness-card{border:1px solid rgba(222,192,180,.65);border-radius:14px;background:var(--surface-low);box-shadow:var(--shadow)}.progress-card{padding:28px}.progress-card h3,.tip-card h3{margin:0 0 22px;font-size:24px}.circle-progress{--progress: 70;position:relative;width:160px;height:160px;margin:0 auto 26px}.circle-progress svg,.score-ring svg{width:100%;height:100%;transform:rotate(-90deg)}.circle-progress circle{fill:none;stroke-width:12}.circle-progress circle:first-child{stroke:var(--surface-high)}.circle-progress circle:last-child{stroke:var(--primary);stroke-linecap:round;stroke-dasharray:439.8;stroke-dashoffset:calc(439.8 - (439.8 * var(--progress) / 100))}.circle-progress div{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;align-content:center;color:var(--primary-dark)}.circle-progress strong{font-size:36px}.circle-progress span{color:var(--muted);font-family:JetBrains Mono,monospace;font-size:11px}.progress-card dl{margin:0;display:grid;gap:10px}.progress-card dl div{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid rgba(222,192,180,.5)}.progress-card dt,.progress-card dd{margin:0}.progress-card dt{color:var(--muted)}.progress-card dd{font-weight:800}.tip-card{min-height:420px;display:flex;flex-direction:column;justify-content:end;padding:28px;color:#fff;background:linear-gradient(180deg,#2419142e,#241914e6),linear-gradient(135deg,var(--primary),var(--primary-dark))}.tip-card span{font-family:JetBrains Mono,monospace;color:#ffddb3}.tip-card p{line-height:1.6;color:#ffffffdb}.tip-card a{display:inline-flex;gap:6px;align-items:center;font-weight:800;color:#ffdbcd}.student-fab{display:none}.start-exam-banner{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:36px;padding:28px 36px;border-radius:16px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;box-shadow:0 16px 40px #a23f003d;transition:transform .16s ease,box-shadow .16s ease}.start-exam-banner:hover{transform:translateY(-2px);box-shadow:0 20px 48px #a23f0052}.start-exam-content{display:flex;align-items:center;gap:18px}.start-exam-content strong{display:block;font-family:Plus Jakarta Sans,system-ui,sans-serif;font-size:22px;font-weight:800}.start-exam-content span{display:block;margin-top:4px;color:#ffffffc7;font-size:14px}.exam-screen{height:100vh;overflow:hidden;display:flex;flex-direction:column;background:var(--bg)}.exam-header{height:80px;flex:0 0 80px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:22px;padding:0 28px;background:#fff8f6e0;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid rgba(222,192,180,.55);color:var(--text)}.exam-header strong{font-family:Plus Jakarta Sans,sans-serif;font-size:24px}.exam-header-logo{display:flex;align-items:center;gap:10px;font-family:Plus Jakarta Sans,sans-serif;font-size:18px;font-weight:800}.exam-timer{display:grid;justify-items:center;align-content:center;line-height:1}.exam-timer svg{margin-bottom:-2px}.exam-timer span{font-family:Plus Jakarta Sans,sans-serif;font-size:34px;font-weight:800;color:#ff4d4d}.exam-timer em{margin-top:4px;color:var(--muted);font-size:11px;font-style:normal}.exam-header-actions{justify-self:end;display:flex;align-items:center;gap:10px}.exam-header-actions button,.exam-header-actions a{min-height:40px;padding:0 14px;border:0;border-radius:999px;display:inline-flex;gap:7px;align-items:center;background:transparent;color:var(--muted);font-weight:700}.exam-header-actions button:hover,.exam-header-actions a:hover{background:#0000000f}.exam-header-actions .submit-paper{padding:0 28px;background:var(--primary);color:#fff}.exam-workspace{position:relative;min-height:0;flex:1;display:grid;grid-template-columns:auto 1fr auto}.question-sidebar{position:relative;width:256px;overflow:hidden auto;padding:24px;background:var(--surface-low);border-right:1px solid var(--outline);transition:width .22s ease,padding .22s ease}.question-sidebar.collapsed{width:0;padding-left:0;padding-right:0}.question-sidebar h2,.minimap h2{margin:0 0 24px;display:flex;align-items:center;gap:10px;font-size:18px}.question-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;max-height:280px;overflow-y:auto;padding-right:4px}.question-grid button{position:relative;aspect-ratio:1;border:1px solid var(--outline);border-radius:10px;background:#fff;color:var(--muted);font-size:14px;font-weight:700}.question-grid button.answered{background:var(--surface-high);color:var(--text)}.question-grid button.current{border:2px solid var(--primary);color:var(--primary-dark);background:#fff}.question-grid button.wrong-dot{border-color:var(--danger);background:#ba1a1a14;color:var(--danger)}.question-grid button span{position:absolute;top:-6px;right:-6px;width:20px;height:20px;display:grid;place-items:center;border-radius:999px;background:var(--green);color:#fff;border:2px solid var(--surface-low)}.guide-button{display:none}.sidebar-tools{display:flex;gap:10px;margin-top:24px;padding-top:18px;border-top:1px solid var(--outline)}.sidebar-tools button{flex:1;height:44px;display:grid;place-items:center;border:1px solid var(--outline);border-radius:10px;background:#fff;color:var(--muted);transition:background .12s ease,color .12s ease}.sidebar-tools button:hover{background:var(--surface-high);color:var(--primary-dark)}.sidebar-tools button.active{background:var(--primary);color:#fff;border-color:var(--primary)}.sidebar-panel{margin-top:16px;padding:14px;border-radius:12px;border:1px solid var(--outline);background:#fff}.sidebar-panel h4{margin:0 0 12px;font-size:13px;color:var(--muted)}.formula-list{margin:0;padding:0;list-style:none;display:grid;gap:8px;font-family:JetBrains Mono,monospace;font-size:13px;color:var(--text)}.formula-list li{padding:8px 10px;border-radius:8px;background:var(--surface-low)}.calc-display{padding:12px 14px;margin-bottom:10px;border-radius:8px;background:var(--surface-low);font-family:JetBrains Mono,monospace;font-size:20px;font-weight:700;text-align:right;color:var(--text)}.calc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}.calc-grid button{height:36px;border:1px solid var(--outline);border-radius:8px;background:#fff;font-size:14px;font-weight:600;color:var(--text);cursor:pointer}.calc-grid button:hover{background:var(--surface-low)}.calc-grid button.op{background:var(--surface-high);color:var(--primary-dark)}.panel-toggle{position:absolute;z-index:15;top:50%;transform:translateY(-50%);width:20px;height:48px;display:grid;place-items:center;border-radius:6px;background:#fff9;color:var(--muted);cursor:pointer;opacity:.5;transition:opacity .18s ease,background .18s ease}.panel-toggle:hover{opacity:1;background:#fff;box-shadow:0 2px 8px #0000001a}.panel-toggle.left{left:253px}.panel-toggle.left.collapsed{left:3px}.panel-toggle.right{right:253px}.panel-toggle.right.collapsed{right:3px}.exam-paper{position:relative;overflow:auto;display:grid;justify-items:center;padding:36px 32px 120px;background:#fff}.floating-toolbar{position:fixed;bottom:28px;left:50%;z-index:15;transform:translate(-50%);display:flex;gap:8px;padding:8px;border-radius:999px;border:1px solid var(--outline);background:#ffffffeb;box-shadow:0 16px 34px #24191424}.floating-toolbar button{width:44px;height:44px;border:0;border-radius:999px;display:grid;place-items:center;background:transparent;color:var(--muted)}.floating-toolbar button.active{background:var(--primary);color:#fff}.floating-toolbar span{width:1px;margin:8px 0;background:var(--outline)}.paper-page{width:min(920px,100%);min-height:900px;padding:64px;background:#fff;color:var(--text)}.paper-topline{display:flex;justify-content:space-between;gap:20px;padding-bottom:24px;border-bottom:2px solid var(--text);font-family:Plus Jakarta Sans,sans-serif}.paper-topline div{display:flex;align-items:center;gap:18px}.paper-topline span{padding:4px 10px;border-radius:6px;background:var(--primary);color:#fff;font-family:JetBrains Mono,monospace;font-size:13px}.paper-question{margin-top:48px}.paper-question.secondary{opacity:.72}.paper-question-head{display:flex;justify-content:space-between;gap:20px;align-items:start}.paper-question h1{margin:0;font-size:24px}.paper-question-head span{padding:5px 10px;border-radius:8px;border:1px solid var(--outline);background:var(--surface-high);font-family:JetBrains Mono,monospace;font-weight:800}.paper-question p{font-size:18px;line-height:1.7}.answer-row{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:end}.scratchpad{position:relative;display:block;padding:22px 18px 14px;border:1px dashed var(--outline);border-radius:12px;background:var(--surface-low)}.scratchpad span{position:absolute;top:-11px;left:16px;padding:0 8px;background:#fff;color:var(--primary-dark);font-family:JetBrains Mono,monospace;font-size:11px}.scratchpad textarea{width:100%;min-height:72px;resize:vertical;border:0;outline:0;background:transparent}.short-answer{display:flex;align-items:center;gap:14px;white-space:nowrap;color:var(--muted)}.short-answer input{width:160px;border:0;border-bottom:2px solid var(--text);outline:0;text-align:center;font-size:20px}.minimap{position:relative;width:256px;overflow:visible;padding:24px;background:var(--surface-low);border-left:1px solid var(--outline);transition:width .22s ease,padding .22s ease}.minimap.collapsed{width:0;padding:0;overflow:hidden;background:transparent;border-left:none}.collapse-button.right{left:-1px;top:50%;transform:translateY(-50%);border-left:none;border-top-left-radius:0;border-bottom-left-radius:0}.mini-paper{position:relative;min-height:540px;display:grid;gap:18px;align-content:start;padding:22px;border-radius:10px;border:1px solid var(--outline);background:#fff}.mini-paper div,.mini-paper p,.mini-paper section{margin:0;border-radius:999px;background:var(--surface-high)}.mini-paper div{width:72%;height:12px}.mini-paper p{height:7px}.mini-paper section{height:122px;border-radius:10px;background:var(--surface-low);border:1px dashed var(--outline)}.mini-paper span{position:absolute;inset:16px 10px auto;height:170px;border-radius:10px;border:2px solid var(--primary);background:#f5793b0f}.mini-tools{display:grid;gap:18px;margin-top:80px}.mini-tools button{width:46px;height:46px;display:grid;place-items:center;border:1px solid var(--outline);border-radius:12px;background:#fff;color:var(--muted)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;display:grid;place-items:center;padding:24px;background:#2419146b;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.submit-modal,.correction-modal{width:min(540px,100%);padding:36px;border:1px solid rgba(222,192,180,.6);border-radius:14px;background:var(--bg);box-shadow:0 22px 70px #2419143d;text-align:center}.mistake-modal{width:min(900px,95vw);max-height:90vh;border-radius:16px;background:var(--bg);border:1px solid rgba(222,192,180,.6);box-shadow:0 22px 70px #2419143d;display:flex;flex-direction:column;overflow:hidden}.mistake-modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;border-bottom:1px solid var(--outline);font-size:15px;font-weight:700}.mistake-modal-header button{background:none;border:none;cursor:pointer;color:var(--muted);padding:4px;border-radius:6px}.mistake-modal-header button:hover{background:var(--surface-high)}.mistake-modal-body{display:grid;grid-template-columns:1fr 220px;flex:1;overflow-y:auto}.mistake-modal-main{padding:24px;display:flex;flex-direction:column;gap:20px}.mistake-modal-main .practice-question h3{margin:0 0 8px;font-size:16px}.mistake-modal-main .practice-question p{color:var(--muted);font-size:14px;line-height:1.6}.mistake-modal-main .parabola-diagram{max-width:360px;margin:12px 0}.mistake-modal-main label span{display:flex;align-items:center;gap:6px;font-size:13px;font-weight:700;margin-bottom:6px;color:var(--muted)}.mistake-modal-main textarea{width:100%;min-height:80px;padding:12px;border:1px solid var(--outline);border-radius:10px;font:inherit;font-size:14px;resize:vertical}.mistake-modal-actions{display:flex;gap:10px}.mistake-modal-actions button{flex:1;display:flex;align-items:center;justify-content:center;gap:6px;padding:10px;border:1px solid var(--outline);border-radius:10px;background:var(--surface);font-size:13px;font-weight:700;cursor:pointer;transition:background .14s ease}.mistake-modal-actions button:hover{background:var(--surface-low)}.mistake-modal-actions button.primary{background:var(--primary);border-color:var(--primary);color:#fff}.mistake-modal-actions button.primary:hover{background:var(--primary-dark)}.mistake-modal-side{padding:20px 16px;border-left:1px solid var(--outline);background:var(--surface-low);display:flex;flex-direction:column;gap:16px}.mistake-modal-side .pending-card strong,.mistake-modal-side .practice-progress-mini strong{display:block;font-size:13px;margin-bottom:8px}.pending-list{display:flex;flex-wrap:wrap;gap:6px}.pending-list span{padding:4px 10px;border-radius:6px;font-size:12px;font-weight:700;background:var(--surface);border:1px solid var(--outline);color:var(--muted)}.pending-list span.active{background:var(--primary);border-color:var(--primary);color:#fff}.practice-progress-mini .progress-bar{height:6px;border-radius:999px;background:var(--outline);overflow:hidden}.practice-progress-mini .progress-bar span{display:block;height:100%;border-radius:999px;background:var(--primary)}.submit-icon{width:80px;height:80px;margin:0 auto 20px;display:grid;place-items:center;border-radius:999px;background:var(--primary);color:#fff}.submit-modal h2,.correction-modal h2{margin:0}.submit-modal>p,.correction-modal p{color:var(--muted);line-height:1.6}.submit-warning,.submit-sync{margin-top:14px;padding:16px;display:grid;gap:4px;text-align:left;border-radius:12px}.submit-warning{border:1px solid rgba(180,37,45,.24);background:#fe5b5b1a;color:var(--secondary)}.submit-sync{border:1px solid rgba(31,169,138,.24);background:#1fa98a1a}.submit-warning span,.submit-sync span{color:var(--muted);font-size:14px}.modal-actions{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:26px}.modal-actions button,.correction-modal button{min-height:50px;border-radius:10px;font-weight:800}.modal-actions button:first-child{border:2px solid var(--outline);background:transparent;color:var(--muted)}.modal-actions button:last-child,.correction-modal button{border:0;background:var(--primary);color:#fff}.exam-guide-modal{width:min(560px,90vw);max-height:80vh;display:flex;flex-direction:column;border-radius:16px;background:var(--bg);box-shadow:0 22px 70px #2419143d;overflow:hidden}.exam-guide-header{display:flex;align-items:center;justify-content:space-between;padding:22px 28px;border-bottom:1px solid var(--outline)}.exam-guide-header h2{margin:0;font-size:20px}.exam-guide-header button{width:32px;height:32px;border:none;border-radius:8px;background:var(--surface-high);color:var(--muted);font-size:20px;cursor:pointer;display:grid;place-items:center}.exam-guide-header button:hover{background:var(--surface-mid)}.exam-guide-body{padding:24px 28px;overflow-y:auto}.exam-guide-body section{margin-bottom:22px}.exam-guide-body section:last-child{margin-bottom:0}.exam-guide-body h3{margin:0 0 10px;font-size:16px;color:var(--primary-dark)}.exam-guide-body ul{margin:0;padding:0 0 0 20px;display:grid;gap:8px;color:var(--muted);font-size:14px;line-height:1.6}.qd-page-v2{min-height:100vh;display:grid;grid-template-columns:1fr 360px;grid-template-rows:1fr;background:radial-gradient(#e5e7eb 1px,transparent 1px) 0 0 / 32px 32px,#f3f4f6;filter:grayscale(1);position:relative}.qd-top-actions{position:fixed;right:32px;top:28px;display:flex;align-items:center;gap:14px;z-index:5}.qd-practice-link{padding:8px 16px;border-radius:8px;background:#ba1a1a;color:#fff;font-weight:700;font-size:13px;text-decoration:none;filter:saturate(2)}.qd-practice-link:hover{background:#93000a}.qd-split{grid-column:1 / -1;display:grid;grid-template-columns:1fr 360px;min-height:100vh}.qd-main-col{padding:120px 80px 120px 120px;display:flex;flex-direction:column;gap:24px}.qd-q-label{font-family:JetBrains Mono,monospace;font-size:14px;font-weight:800;color:#374151}.qd-q-label em{font-style:normal;padding:3px 10px;margin-left:10px;border-radius:999px;font-size:12px}.qd-q-label em.correct{background:#1fa98a1f;color:#1fa98a}.qd-q-label em.wrong{background:#ba1a1a1f;color:#ba1a1a}.qd-q-title{margin:0;font-size:20px;line-height:1.6;color:#111827;font-weight:600}.qd-my-answer{margin-top:12px}.qd-my-answer>span{display:block;margin-bottom:8px;font-size:12px;font-weight:700;color:#6b7280;text-transform:uppercase;letter-spacing:.5px}.qd-my-answer p{margin:0;padding:18px 20px;border-radius:10px;background:#fff;border:1px solid #e5e7eb;font-size:15px;line-height:1.6;color:#374151}.qd-answer-col{padding:120px 32px;background:#fff;border-left:1px solid #e5e7eb}.qd-answer-col h4{margin:0 0 14px;font-size:13px;font-weight:700;color:#065f46;text-transform:uppercase;letter-spacing:.5px}.qd-answer-col p{margin:0;padding:18px 20px;border-radius:10px;background:#1fa98a0d;border:1px solid rgba(31,169,138,.15);font-size:15px;line-height:1.7;color:#065f46}.qd-nav-left{position:fixed;bottom:32px;left:120px;display:flex;align-items:center;gap:18px;padding:8px 16px;border-radius:999px;background:#fff;border:1px solid #e5e7eb;box-shadow:0 6px 20px #0000000f}.qd-nav-left button{display:inline-flex;align-items:center;gap:4px;padding:6px 12px;border:none;border-radius:6px;background:transparent;color:#374151;font-weight:700;font-size:13px;cursor:pointer}.qd-nav-left button:hover:not(:disabled){background:#f3f4f6}.qd-nav-left button:disabled{opacity:.3;cursor:not-allowed}.qd-nav-left>span{font-family:JetBrains Mono,monospace;font-size:12px;color:#6b7280}.focus-page{min-height:100vh;padding:110px 24px 80px;display:grid;justify-items:center;background:radial-gradient(#e5e7eb 1px,transparent 1px) 0 0 / 32px 32px,#f3f4f6;color:#111827;filter:grayscale(1);font-family:Inter,system-ui,sans-serif}.exit-focus{position:fixed;right:32px;top:28px;border-bottom:1px solid #111827;font-weight:700}.focus-logo{position:fixed;left:28px;top:28px}.focus-side-tools{position:fixed;left:28px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:12px}.focus-side-tools button{width:44px;height:44px;display:grid;place-items:center;border:1px solid #d1d5db;border-radius:10px;background:#fff;color:#6b7280;cursor:pointer;transition:background .12s ease,color .12s ease}.focus-side-tools button:hover{background:#f3f4f6;color:#111827}.focus-side-tools button.active{background:#111827;color:#fff;border-color:#111827}.focus-side-panel{position:fixed;left:84px;top:50%;transform:translateY(-50%);width:220px;padding:16px;border-radius:12px;border:1px solid #d1d5db;background:#fff;box-shadow:0 12px 32px #0000001a}.focus-question{width:min(840px,100%);padding:52px;background:transparent;border:none}.focus-question>span{font-family:JetBrains Mono,monospace;font-weight:800}.focus-question p{font-size:18px;line-height:1.65}.geometry-diagram{min-height:260px;display:grid;place-items:center;border:1px dashed var(--blue-outline);border-radius:12px;background:var(--blue-surface)}.geometry-diagram svg{width:min(360px,100%)}.focus-tools{display:flex;justify-content:center;gap:16px;margin:20px 0}.focus-tools button{border:0;background:transparent}.focus-answer{display:grid;gap:10px}.focus-answer>span{color:#434654;font-family:JetBrains Mono,monospace;font-size:12px;font-weight:800}.focus-answer div{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center}.focus-answer input{min-height:44px;border:0;border-bottom:2px solid var(--blue-outline);outline:0;background:transparent;font-size:18px}.focus-hint{position:fixed;bottom:28px;color:#737686}.report-header{display:flex;justify-content:space-between;gap:28px}.back-link{display:inline-flex;align-items:center;gap:7px;color:var(--primary-dark);font-weight:800}.title-with-pill{display:flex;align-items:center;gap:16px;margin-top:18px}.title-with-pill h1{margin:0;font-size:40px}.title-with-pill span{padding:5px 11px;border-radius:999px;background:#a23f001a;color:var(--primary-dark);font-family:JetBrains Mono,monospace;font-size:12px;font-weight:800}.report-header p{max-width:720px;color:var(--muted);font-size:18px;line-height:1.6}.report-actions{display:flex;flex-wrap:wrap;gap:12px;align-content:start}.report-actions a{min-height:52px;padding:0 22px;border-radius:10px;display:inline-flex;align-items:center;gap:8px;font-weight:800}.report-actions a:first-child{background:var(--surface-high);border:1px solid var(--outline)}.report-actions a:last-child{background:var(--primary);color:#fff}.score-card{padding:34px;display:grid;justify-items:center;text-align:center;border-radius:14px;color:#fff;background:linear-gradient(135deg,var(--primary-dark),var(--primary));box-shadow:0 18px 40px #a23f0038}.score-card>span{font-family:JetBrains Mono,monospace;color:#fffc;letter-spacing:.12em}.score-ring{position:relative;width:230px;height:230px}.score-ring circle{fill:none;stroke-width:16}.score-ring circle:first-child{stroke:#ffffff29}.score-ring circle:last-child{--score: .91;stroke:#fff;stroke-linecap:round;stroke-dasharray:628.3;stroke-dashoffset:calc(628.3 - (628.3 * var(--score)))}.score-ring div{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;align-content:center}.score-ring strong{font-size:64px}.score-ring span{font-size:24px;color:#ffffffa3}.score-badges{display:flex;gap:10px}.score-badges span,.score-badges strong{padding:6px 14px;border-radius:999px;background:#ffffff2e}.score-badges strong{color:var(--primary-dark);background:#fff}.weakness-card{padding:30px;border:2px solid rgba(186,26,26,.22);background:#ffdad647}.weakness-head{display:flex;justify-content:space-between;gap:16px}.weakness-head div{display:flex;align-items:center;gap:12px;color:var(--danger)}.weakness-head h2{margin:0;font-size:24px}.weakness-head>span{height:fit-content;padding:5px 10px;border-radius:999px;background:var(--danger);color:#fff;font-size:12px;font-weight:800}.weakness-topic{margin-top:24px;padding:16px;border-radius:10px;border:1px solid rgba(186,26,26,.14);background:#fff}.weakness-topic p{margin:0 0 4px;color:var(--muted)}.weakness-card>p{color:var(--muted);line-height:1.6}.mistake-jump{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-top:18px;border-top:1px solid rgba(186,26,26,.16)}.mistake-jump div{display:flex}.mistake-jump span{width:34px;height:34px;display:grid;place-items:center;border-radius:999px;background:#ba1a1a1a;color:var(--danger);border:2px solid var(--bg);font-size:11px;font-weight:800}.mistake-jump span+span{margin-left:-8px}.mistake-jump a{display:inline-flex;align-items:center;gap:4px;color:var(--danger);font-weight:800}.breakdown-card{margin-top:36px;padding:34px;background:var(--surface)}.breakdown-head{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-bottom:28px}.breakdown-head h2{margin:0}.breakdown-head div{display:flex;align-items:center;gap:8px;padding:10px 16px;border-radius:10px;background:var(--surface-low);color:var(--muted);font-family:JetBrains Mono,monospace;font-size:12px}.breakdown-head div span{width:10px;height:10px;border-radius:999px;background:var(--gold)}.breakdown-head div span:last-of-type{background:var(--danger)}.breakdown-grid{display:grid;grid-template-columns:repeat(10,1fr);gap:12px}.breakdown-grid button{position:relative;aspect-ratio:1;border:2px solid rgba(211,143,23,.22);border-radius:10px;background:var(--surface-low);color:var(--gold);font-weight:800}.breakdown-grid button.wrong{border-color:#ba1a1a3d;background:#ba1a1a1a;color:var(--danger)}.breakdown-grid button:nth-child(4){background:var(--danger);color:#fff;box-shadow:0 10px 22px #ba1a1a38}.breakdown-grid em{position:absolute;left:50%;bottom:calc(100% + 10px);width:150px;padding:10px;transform:translate(-50%);border-radius:9px;background:#3a2e28;color:#fff;font-size:11px;font-style:normal}.breakdown-grid em strong{display:block}.practice-callout{margin-top:34px;display:grid;grid-template-columns:auto 1fr auto;gap:22px;align-items:center;padding:24px;border-radius:12px;border:2px dashed rgba(162,63,0,.22);background:#a23f000d}.practice-callout h3,.practice-callout p{margin:0}.practice-callout p{color:var(--muted)}.practice-callout>span{padding:12px 18px;border-radius:10px;background:var(--primary-dark);color:#fff;font-weight:800}.progress-compare article{padding:30px}.progress-compare h2{margin:0 0 18px}.progress-compare p{color:var(--muted);line-height:1.6}.progress-compare button{border:0;display:inline-flex;align-items:center;gap:8px;background:transparent;color:var(--primary-dark);font-weight:800}.compare-progress{display:grid;gap:10px;margin-top:18px}.compare-progress div{display:flex;justify-content:space-between;gap:12px}.compare-progress span{color:var(--primary-dark);font-family:JetBrains Mono,monospace;font-size:12px}.compare-progress p{margin:0;height:12px;overflow:hidden;border-radius:999px;background:var(--surface-high)}.compare-progress p span{display:block;height:100%;background:var(--primary-dark)}.compare-progress p span.gold{background:var(--gold)}.challenge-row{margin-top:28px;padding-top:22px;display:flex;justify-content:space-between;border-top:1px solid var(--outline);color:var(--muted)}.challenge-row a{color:var(--primary-dark);font-weight:800}.practice-screen{height:100vh;display:grid;grid-template-columns:minmax(0,1fr) 384px;overflow:hidden;background:var(--bg)}.practice-main{overflow:auto;padding:42px}.practice-content{max-width:900px;margin:0 auto;display:grid;gap:28px}.practice-header{display:flex;align-items:center;flex-wrap:wrap;gap:18px;padding-bottom:20px;border-bottom:1px solid var(--outline)}.practice-header a{display:inline-flex;align-items:center;gap:6px;color:var(--primary-dark);font-family:JetBrains Mono,monospace;font-weight:800}.practice-close{width:36px;height:36px;display:grid;place-items:center;border-radius:10px;background:var(--surface-high);color:var(--muted)!important;transition:background .12s ease}.practice-close:hover{background:var(--surface-mid)}.practice-header span{padding:6px 12px;border-radius:999px;background:#ffdad7;color:#920418;font-family:JetBrains Mono,monospace}.practice-header p{margin:0;color:var(--muted)}.practice-question{padding:36px;border:1px solid var(--outline);border-radius:14px;background:#fff;box-shadow:var(--shadow)}.practice-question h1{margin:0 0 18px;display:flex;align-items:center;gap:10px;color:var(--primary-dark);font-size:24px}.practice-question h1 span{width:8px;height:32px;border-radius:999px;background:var(--primary)}.practice-question p{color:var(--muted);font-size:18px;line-height:1.7}.parabola-diagram{display:grid;place-items:center;margin:24px 0;min-height:230px;border:1px solid var(--outline);border-radius:12px;background:var(--surface-low)}.parabola-diagram svg{width:min(520px,100%)}.practice-question label{display:grid;gap:10px}.practice-question label span{display:inline-flex;align-items:center;gap:6px;color:var(--primary-dark);font-family:JetBrains Mono,monospace;font-weight:800}.practice-question textarea{min-height:150px;resize:vertical;padding:16px;border:1px solid var(--outline);border-radius:10px;outline:0}.practice-question textarea:focus{border-color:var(--primary);box-shadow:0 0 0 4px #f5793b1f}.practice-actions{display:flex;justify-content:space-between;align-items:center;gap:18px;padding-top:24px;border-top:1px solid var(--outline)}.practice-actions button{min-height:48px;display:inline-flex;align-items:center;gap:8px;border:0;background:transparent;color:var(--muted);font-family:JetBrains Mono,monospace;font-weight:800}.practice-actions button:nth-child(2){padding:0 34px;border-radius:10px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;font-family:Work Sans,sans-serif;font-size:18px}.practice-side{overflow:auto;padding:24px;display:grid;align-content:start;gap:18px;background:var(--surface-low);border-left:1px solid var(--outline)}.practice-progress,.pending-card,.recommendation-card article{padding:18px;border:1px solid var(--outline);border-radius:12px;background:#fff}.practice-progress div,.pending-card div:first-child,.recommendation-card>div,.recommendation-card article div{display:flex;justify-content:space-between;gap:12px}.practice-progress span{color:var(--primary-dark);font-weight:800}.practice-progress p{height:10px;margin:14px 0 0;overflow:hidden;border-radius:999px;background:var(--surface-mid)}.practice-progress p span{display:block;height:100%;background:var(--primary)}.pending-card span,.recommendation-card>div span{padding:4px 9px;border-radius:999px;background:#ffdad6;color:#93000a;font-size:12px;font-weight:800}.pending-card div:last-child{display:flex;gap:10px;margin-top:16px}.pending-card button{width:42px;height:42px;border:1px solid transparent;border-radius:10px;background:var(--surface-mid);color:var(--muted);font-weight:800}.pending-card button.active{background:var(--primary);color:#fff;box-shadow:0 0 0 3px #f5793b29}.recommendation-card{display:grid;gap:12px}.recommendation-card article p{color:var(--muted);font-size:13px;line-height:1.5}.recommendation-card article button{border:0;display:inline-flex;align-items:center;gap:4px;background:transparent;color:var(--primary-dark);font-size:12px;font-weight:800}.more-recommendations{min-height:44px;border:1px solid var(--primary);border-radius:10px;background:transparent;color:var(--primary-dark);font-weight:800}.correction-modal div{width:76px;height:76px;margin:0 auto 18px;display:grid;place-items:center;border-radius:999px;background:var(--primary-soft);color:var(--primary-dark)}.mobile-hint-page{position:relative;min-height:100vh;display:grid;place-items:center;padding:28px;overflow:hidden;background:radial-gradient(#d9d4cc .5px,transparent .5px) 0 0 / 20px 20px,#f2ede4}.mobile-hint-card{position:relative;z-index:1;width:min(500px,100%);display:grid;justify-items:center;gap:18px;text-align:center}.device-illustration{position:relative;width:192px;height:192px;display:grid;place-items:center;border-radius:18px;border:1px solid var(--outline);background:#fffc;color:var(--primary-dark);box-shadow:0 14px 38px #f5793b38}.device-illustration div{position:absolute;right:-14px;bottom:-14px;width:82px;height:82px;display:grid;place-items:center;border-radius:999px;border:4px solid #f2ede4;background:#fff;color:var(--muted)}.device-illustration span{position:absolute;right:14px;top:12px;width:20px;height:20px;display:grid;place-items:center;border-radius:999px;background:var(--secondary);color:#fff;font-weight:800}.mobile-hint-card h1{margin:12px 0 0;font-size:28px}.mobile-hint-card p{margin:0;color:var(--muted);line-height:1.7}.hint-strip{display:flex;align-items:flex-start;gap:12px;padding:16px;border-radius:14px;background:#ffffffb8;border:1px solid rgba(255,255,255,.5);text-align:left}.hint-strip svg{flex:0 0 auto;color:var(--primary-dark)}.mobile-hint-card button{width:100%;min-height:54px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:12px;background:var(--primary-dark);color:#fff;font-weight:800;box-shadow:0 12px 28px #a23f002e}.mobile-hint-card a{display:inline-flex;align-items:center;gap:4px;color:var(--muted);font-family:JetBrains Mono,monospace;font-size:13px}.mobile-hint-page footer{position:fixed;bottom:20px;color:#8b7267;font-family:JetBrains Mono,monospace;font-size:12px}@media(max-width:1100px){.student-nav{padding:0 24px}.student-nav nav{display:none}.student-main,.report-page{padding-left:24px;padding-right:24px}.hero-card,.home-grid,.report-grid,.progress-compare,.practice-screen{grid-template-columns:1fr}.practice-side,.question-sidebar,.minimap,.collapse-button,.resizer,.panel-toggle{display:none}.exam-workspace{grid-template-columns:1fr}.exam-header{grid-template-columns:1fr;height:auto;padding:14px;text-align:center}.exam-header-actions{justify-self:center;flex-wrap:wrap}}@media(max-width:720px){.student-main,.report-page,.practice-main{padding:24px 16px 52px}.hero-card,.report-header,.breakdown-head,.practice-callout,.practice-actions{grid-template-columns:1fr;flex-direction:column;align-items:stretch}.hero-card{padding:28px}.hero-card h1,.title-with-pill h1{font-size:30px}.exam-card{grid-template-columns:1fr}.exam-action{justify-content:space-between}.breakdown-grid{grid-template-columns:repeat(5,1fr)}.score-badges,.modal-actions{grid-template-columns:1fr;flex-direction:column}.paper-page{padding:32px 20px}.answer-row{grid-template-columns:1fr}.floating-toolbar{max-width:calc(100vw - 24px);overflow-x:auto}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important;transition-duration:.01ms!important}}.dendrite-paper .question-page{width:100%;box-shadow:none;padding:0;min-height:0}.dendrite-paper .question-pages{gap:0}.dendrite-question{padding:32px 0 28px;border-bottom:1px dashed var(--outline, #d8cfc8);scroll-margin-top:24px}.dendrite-question:last-child{border-bottom:none}.dendrite-question.current{background:linear-gradient(90deg,rgba(245,121,59,.05),transparent 60%)}.dendrite-question .question-renderer{font-family:Times New Roman,Times,serif;font-size:17px;color:#171717}.dendrite-scratchpad{margin-top:18px}.dendrite-scratchpad textarea{width:100%;min-height:88px;border:none;background:transparent;resize:vertical;font:inherit;color:inherit;outline:none}.exam-load-error{margin:120px auto;max-width:520px;padding:32px;background:#fff;border:1px solid var(--outline, #e3d9d3);border-radius:16px;text-align:center}.exam-load-error h2{margin:0 0 12px}.exam-load-error p{color:var(--muted, #6b5d55);word-break:break-all}.exam-load-error a{display:inline-block;margin-top:16px;font-weight:600}