@font-face{font-family:Manrope;font-style:normal;font-display:swap;font-weight:400;src:url(/assets/manrope-latin-400-normal-PaqtzbVb.woff2)format("woff2"),url(/assets/manrope-latin-400-normal-8tf8FM3T.woff)format("woff")}@font-face{font-family:Manrope;font-style:normal;font-display:swap;font-weight:500;src:url(/assets/manrope-latin-500-normal-BYYD-dBL.woff2)format("woff2"),url(/assets/manrope-latin-500-normal-DMZssgOp.woff)format("woff")}@font-face{font-family:Manrope;font-style:normal;font-display:swap;font-weight:600;src:url(/assets/manrope-latin-600-normal-4f0koTD-.woff2)format("woff2"),url(/assets/manrope-latin-600-normal-BqgrALkZ.woff)format("woff")}@font-face{font-family:Manrope;font-style:normal;font-display:swap;font-weight:700;src:url(/assets/manrope-latin-700-normal-BZp_XxE4.woff2)format("woff2"),url(/assets/manrope-latin-700-normal-DGRFkw-m.woff)format("woff")}@font-face{font-family:Manrope;font-style:normal;font-display:swap;font-weight:800;src:url(/assets/manrope-latin-800-normal-BfWYOv1c.woff2)format("woff2"),url(/assets/manrope-latin-800-normal-uHUdIJgA.woff)format("woff")}.topic-filter-section{margin:18px 0 24px}.topic-filter-panel{border:1px solid var(--line);background:#fff;border-radius:12px}.topic-filter-panel summary{cursor:pointer;justify-content:space-between;align-items:center;gap:12px;padding:16px 18px;font-size:13px;font-weight:700;list-style:none;display:flex}.topic-filter-panel summary::-webkit-details-marker{display:none}.topic-filter-panel summary>span{align-items:center;gap:9px;display:flex}.topic-filter-panel summary b{color:var(--blue);background:#edf3ff;border-radius:6px;padding:1px 7px;font-size:11px}.topic-filter-panel .topic-filter-count{color:#64748b;font-size:11px;font-weight:500}.topic-filter-panel[open] summary{border-bottom:1px solid var(--line)}.topic-filter-panel[open] summary .topic-filter-count svg{transform:rotate(180deg)}.topic-filter-body{padding:18px}.topic-filter-body fieldset{border:0;min-width:0;margin:0;padding:0}.topic-filter-body legend{font-size:13px;font-weight:700}.topic-filter-body fieldset>p{color:#64748b;max-width:680px;margin:5px 0 16px;font-size:12px}.topic-filter-options{grid-template-columns:repeat(3,minmax(0,1fr));gap:9px;display:grid}.topic-filter-options label{border:1px solid var(--line);cursor:pointer;border-radius:8px;align-items:center;gap:9px;padding:12px;font-size:12px;display:flex}.topic-filter-options label.checked{background:#f1f5ff;border-color:#b5c8fb}.topic-filter-options input{width:16px;height:16px;accent-color:var(--blue);flex-shrink:0}.topic-filter-options label:has(input:disabled){color:#788397;cursor:default}.topic-filter-options small{color:#64748b;margin-left:auto;font-size:11px}.topic-filter-actions{justify-content:flex-end;gap:10px;margin-top:18px;display:flex}.topic-filter-note{color:#64748b;margin-top:14px;font-size:11px}.topic-filter-chips{flex-wrap:wrap;gap:8px;margin-top:12px;display:flex}.topic-filter-chips button{color:#345db7;background:#edf3ff;border:1px solid #cfddfa;border-radius:8px;align-items:center;gap:7px;padding:7px 10px;font-size:11px;display:inline-flex}.topic-filter-chips .clear-topics{background:0 0;border-color:#0000;text-decoration:underline}.topic-filter-empty{color:#64748b;margin-top:12px;font-size:13px}.run-topic-note{color:#64748b;margin:0 0 18px;font-size:12px}@media (width<=900px){.topic-filter-options{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=520px){.topic-filter-panel summary,.topic-filter-body{padding:14px}.topic-filter-options{grid-template-columns:1fr}.topic-filter-options label{min-height:44px}.topic-filter-panel .topic-filter-count{gap:5px;font-size:10px}}@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-border-style:solid;--tw-ordinal:initial;--tw-slashed-zero:initial;--tw-numeric-figure:initial;--tw-numeric-spacing:initial;--tw-numeric-fraction:initial;--tw-shadow:0 0 #0000;--tw-shadow-color:initial;--tw-shadow-alpha:100%;--tw-inset-shadow:0 0 #0000;--tw-inset-shadow-color:initial;--tw-inset-shadow-alpha:100%;--tw-ring-color:initial;--tw-ring-shadow:0 0 #0000;--tw-inset-ring-color:initial;--tw-inset-ring-shadow:0 0 #0000;--tw-ring-inset:initial;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-offset-shadow:0 0 #0000;--tw-outline-style:solid;--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial}}}@layer theme{:root,:host{--font-sans:"Manrope", sans-serif;--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4, 0, .2, 1);--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring:where(:not(iframe)){outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.visible{visibility:visible}.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.fixed{position:fixed}.relative{position:relative}.static{position:static}.container{width:100%}@media (width>=40rem){.container{max-width:40rem}}@media (width>=48rem){.container{max-width:48rem}}@media (width>=64rem){.container{max-width:64rem}}@media (width>=80rem){.container{max-width:80rem}}@media (width>=96rem){.container{max-width:96rem}}.block{display:block}.contents{display:contents}.flex{display:flex}.grid{display:grid}.hidden{display:none}.table{display:table}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.flex-wrap{flex-wrap:wrap}.gap-2{gap:calc(var(--spacing) * 2)}.border{border-style:var(--tw-border-style);border-width:1px}.uppercase{text-transform:uppercase}.ordinal{--tw-ordinal:ordinal;font-variant-numeric:var(--tw-ordinal,) var(--tw-slashed-zero,) var(--tw-numeric-figure,) var(--tw-numeric-spacing,) var(--tw-numeric-fraction,)}.shadow{--tw-shadow:0 1px 3px 0 var(--tw-shadow-color,#0000001a), 0 1px 2px -1px var(--tw-shadow-color,#0000001a);box-shadow:var(--tw-inset-shadow), var(--tw-inset-ring-shadow), var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow)}.ring{--tw-ring-shadow:var(--tw-ring-inset,) 0 0 0 calc(1px + var(--tw-ring-offset-width)) var(--tw-ring-color,currentcolor);box-shadow:var(--tw-inset-shadow), var(--tw-inset-ring-shadow), var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow)}.outline{outline-style:var(--tw-outline-style);outline-width:1px}.blur{--tw-blur:blur(8px);filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.filter{filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.transition{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}}:root{color:#18243b;font-synthesis:none;-webkit-font-smoothing:antialiased;--blue:#2458eb;--muted:#788397;--line:#e8edf4;--green:#16836a;--red:#c74646;background:#f6f8fc;font-family:Manrope,sans-serif;font-size:14px;font-weight:500;line-height:1.6}*{box-sizing:border-box}body{margin:0}button,a,input,select{-webkit-tap-highlight-color:transparent}button,select{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:default}a{color:inherit;text-decoration:none}button{transition:background .15s,border-color .15s,box-shadow .15s}h1,h2,h3,p{margin:0}button:focus-visible,a:focus-visible,select:focus-visible{outline-offset:4px;outline:3px solid #7da2ff}::selection{background:#dce7ff}h1,h2,h3{font-weight:800;line-height:1.3}svg{flex-shrink:0}button:disabled{opacity:.5}kbd{font-family:inherit}main:focus{outline:none}.app-shell{min-height:100vh}.sidebar{border-right:1px solid var(--line);z-index:20;background:#fff;flex-direction:column;width:216px;padding:34px 20px;display:flex;position:fixed;inset:0 auto 0 0}.brand{letter-spacing:-2px;align-items:center;gap:10px;width:fit-content;margin-left:11px;font-size:35px;font-weight:800;line-height:1;display:flex}.brand-dot{color:var(--blue)}.logo-mark{background:var(--blue);color:#fff;border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:39px;height:39px;display:inline-flex}.logo-mark svg{width:100%;height:100%}.workspace-label{color:var(--muted);letter-spacing:.1px;margin:15px 0 40px 13px;font-size:10px}.sidebar nav{flex-direction:column;gap:7px;display:flex}.sidebar nav a{color:#717c91;border-radius:9px;align-items:center;gap:12px;padding:12px 15px;font-size:13px;font-weight:650;display:flex}.sidebar nav a:hover{background:#f6f8fc}.sidebar nav a.active{color:var(--blue);background:#edf3ff}.sidebar-bottom{border-top:1px solid var(--line);align-items:center;gap:11px;margin-top:auto;padding:19px 10px 0;display:flex}.location-icon{color:#64748b;background:#f4f6fa;border-radius:11px;padding:9px}.sidebar-bottom strong{font-size:12px;font-weight:750;display:block}.sidebar-bottom span{color:var(--muted);margin-top:2px;font-size:10px;display:block}.workspace{margin-left:216px}.topbar{border-bottom:1px solid var(--line);color:#64748b;background:#fffa;justify-content:space-between;align-items:center;height:76px;padding:0 42px;font-size:11px;display:flex}.topbar-right{align-items:center;gap:7px;font-size:10px;display:flex}.local-indicator{background:#30a787;border-radius:50%;width:6px;height:6px}.profile-dot{color:#5e6e89;background:#e9eef7;border:3px solid #fff;border-radius:50%;justify-content:center;align-items:center;width:34px;height:34px;margin-left:17px;font-size:10px;font-weight:800;display:flex;box-shadow:0 0 0 1px #e8edf4}.page{max-width:1390px;min-height:calc(100vh - 157px);margin:0 auto;padding:37px 42px 24px}.page-title{justify-content:space-between;align-items:center;gap:20px;margin-bottom:27px;display:flex}.page-title h1{letter-spacing:-1.2px;font-size:29px}.page-title p{color:var(--muted);margin-top:7px;font-size:12px}.context-pill{border:1px solid var(--line);white-space:nowrap;color:#65728b;background:#fff;border-radius:30px;align-items:center;gap:7px;padding:7px 11px;font-size:10px;display:flex}.welcome-panel{background:#edf3ff;border:1px solid #e4ecfc;border-radius:17px;align-items:center;min-height:278px;display:flex;position:relative;overflow:hidden}.welcome-copy{z-index:1;padding:28px 35px;position:relative}.badge{border-radius:5px;align-items:center;gap:5px;padding:4px 8px;font-size:10px;font-weight:650;line-height:1.5;display:inline-flex}.white-badge{color:#59729f;background:#ffffffbc;border:1px solid #fff}.welcome-copy h2{letter-spacing:-1.3px;margin-top:14px;font-size:31px;line-height:1.3}.welcome-copy p{color:#6a7d9d;margin:12px 0 19px;font-size:11px;line-height:1.9}.button{white-space:nowrap;border:1px solid #0000;border-radius:8px;justify-content:center;align-items:center;gap:9px;min-height:40px;padding:10px 17px;font-size:11px;font-weight:750;line-height:1.4;display:inline-flex}.primary{background:var(--blue);color:#fff;box-shadow:0 3px 6px #2458eb16}.primary:hover:not(:disabled){background:#1647d2;box-shadow:0 4px 10px #2458eb25}.secondary{color:#53627b;background:#fff;border-color:#e0e6ef}.secondary:hover:not(:disabled){background:#f5f8fe}.subtle{color:var(--blue);background:#fff;border-color:#dce7ff}.text-button{color:#64748b;background:0 0;padding-left:0}.text-button:hover:not(:disabled){color:var(--blue)}.hero-meta{color:#64748b;margin-top:10px;padding-left:3px;font-size:9px;display:block}.road-art{width:48%;max-width:470px;height:100%;position:absolute;bottom:0;right:0}.road-art>svg{width:100%;height:auto;position:absolute;bottom:0;right:0}.road-label{color:#64738b;background:#fff;border:1px solid #e7edf8;border-radius:9px;align-items:center;gap:7px;padding:9px 13px;font-size:9px;display:flex;position:absolute;bottom:28px;right:44px;box-shadow:0 4px 20px #173f8510}.road-label span{color:var(--green);background:#e5f6ef;border-radius:50%;padding:3px}.stats-strip{border-bottom:1px solid var(--line);grid-template-columns:repeat(4,1fr);margin-bottom:30px;padding:29px 0 25px;display:grid}.stat{border-right:1px solid var(--line);grid-template-columns:21px 1fr;align-items:center;gap:7px;padding:0 22px;display:grid;position:relative}.stat:first-child{padding-left:0}.stat:last-child{border:0}.stat-icon{color:#64748b;align-items:center;display:flex}.stat-label{color:#64748b;font-size:11px;font-weight:600}.stat-number{letter-spacing:-1px;font-variant-numeric:tabular-nums;grid-column:1/-1;align-items:baseline;gap:8px;font-size:27px;font-weight:800;line-height:1.5;display:flex}.stat-number>span{color:#64748b;letter-spacing:0;font-size:9px;font-weight:500}.section-heading{justify-content:space-between;align-items:center;gap:15px;margin-bottom:18px;display:flex}.section-heading h2,.panel-heading h2{letter-spacing:-.4px;font-size:16px}.section-heading p{color:var(--muted);margin-top:5px;font-size:11px}.count-control{color:#64748b;align-items:center;gap:9px;font-size:10px;display:flex}.count-control select{color:#4c5d77;cursor:pointer;background-color:#fff;border:1px solid #e2e7ef;border-radius:7px;padding:8px 24px 8px 10px;font-size:10px}.mode-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;display:grid}.mode-card{text-align:left;background:#fff;border:1px solid #e3e9f2;border-radius:12px;flex-direction:column;min-height:205px;padding:21px 18px 15px;display:flex}.mode-card:hover:not(:disabled){border-color:#a8befa;box-shadow:0 5px 18px #20396809}.mode-card:disabled:not(.exam){opacity:1}.mode-card:disabled:not(.exam) .mode-icon{opacity:.7}.mode-card:disabled:not(.exam) .mode-bottom{color:#64748b}.mode-icon{color:#3d69df;background:#edf3ff;border-radius:11px;justify-content:center;align-items:center;width:42px;height:42px;margin-bottom:16px;display:flex}.mode-card h3{letter-spacing:-.3px;font-size:13px;font-weight:800}.mode-card p{color:#64748b;max-width:200px;margin-top:7px;font-size:10px;line-height:1.8}.mode-bottom{color:#64748b;justify-content:space-between;align-items:center;gap:6px;margin-top:auto;padding-top:17px;font-size:9px;display:flex}.mode-bottom svg{color:#4e6d9b}.purple .mode-icon{color:#8b6ac9;background:#f2efff}.orange .mode-icon{color:#d2965b;background:#fff3e9}.mode-card.exam{color:#fff;background:#2458eb;border-color:#2458eb}.mode-card.exam .mode-icon{color:#fff;background:#ffffff1e}.mode-card.exam p,.mode-card.exam .mode-bottom{color:#cfdbff}.mode-card.exam .mode-bottom svg{color:#fff}.mode-card.exam:hover:not(:disabled){background:#1d4fdc}.dashboard-bottom{grid-template-columns:1.35fr 1fr;gap:20px;margin-top:29px;display:grid}.panel{background:#fff;border:1px solid #e4eaf2;border-radius:12px;overflow:hidden}.panel-heading{justify-content:space-between;align-items:center;gap:14px;padding:21px 22px 15px;display:flex}.panel-heading>a{color:#64748b;align-items:center;gap:4px;font-size:10px;display:flex}.panel-heading>svg{color:#64748b}.empty-state{text-align:center;flex-direction:column;align-items:center;padding:26px 25px 35px;display:flex}.empty-icon{color:#64748b;background:#f0f4fc;border:1px solid #e8edf6;border-radius:15px;justify-content:center;align-items:center;width:48px;height:48px;margin-bottom:13px;display:flex}.empty-state h3{letter-spacing:-.2px;font-size:13px}.empty-state p{color:#64748b;max-width:300px;margin-top:7px;font-size:10px;line-height:1.9}.empty-state .button{margin-top:20px}.panel-description{color:#64748b;padding:0 22px;font-size:9px}.level-list{gap:14px;padding:18px 22px 25px;display:grid}.level-row{align-items:center;gap:14px;display:flex}.difficulty{color:#64748b;white-space:nowrap;align-items:center;gap:8px;font-size:10px;display:inline-flex}.difficulty-bars{align-items:flex-end;gap:3px;height:16px;display:inline-flex}.difficulty-bars i{background:#e9edf5;border-radius:2px;width:4px}.difficulty-bars i.filled{background:#6086eb}.mini-track{background:#eff3f8;border-radius:5px;flex:1;min-width:30px;height:5px;overflow:hidden}.mini-track>span{background:#6790f2;border-radius:5px;height:100%;display:block}.level-row>span:last-child{text-align:right;color:#5e6f8b;font-variant-numeric:tabular-nums;min-width:53px;font-size:9px}.muted{color:#64748b}.source-note{color:#64748b;align-items:flex-start;gap:9px;max-width:850px;margin-top:23px;font-size:9px;line-height:1.9;display:flex}.source-note svg{margin-top:2px}.app-footer{color:#64748b;align-items:center;gap:7px;max-width:1390px;margin:0 auto;padding:21px 42px 24px;font-size:9px;display:flex}.app-footer .logo-mark{background:#a9b7cf;border-radius:5px;width:17px;height:17px}.footer-note{color:#64748b;margin-left:auto;font-size:8px}.resume-banner{background:#f0f5ff;border:1px solid #dce6fd;border-radius:11px;align-items:center;gap:13px;margin:-10px 0 27px;padding:15px 19px;display:flex}.resume-icon{color:var(--blue);background:#e0eaff;border-radius:8px;padding:9px;display:flex}.resume-banner strong{font-size:12px}.resume-banner p{color:#64748b;margin-top:3px;font-size:10px}.resume-banner>.button{margin-left:auto}.run-row{border-top:1px solid #f0f3f7;align-items:center;gap:12px;padding:17px 22px;display:flex}.run-row:hover{background:#fafcff}.row-icon{color:#64748b;background:#f3f6fb;border-radius:9px;justify-content:center;align-items:center;width:35px;height:35px;display:flex}.row-icon.blue{color:#5981e8;background:#edf3ff}.run-row-name{flex:1;min-width:0}.run-row-name strong{font-size:11px;font-weight:750;display:block}.run-row-name>span{color:#64748b;margin-top:3px;font-size:9px;display:block}.run-row-result{flex-direction:column;align-items:flex-end;gap:2px;font-size:10px;display:flex}.run-row-result>strong{font-size:11px}.run-row-result>span:not(.badge){font-size:9px}.run-row>svg{color:#64748b}.blue-badge{color:#527adc;background:#edf3ff}.text-success{color:var(--green)}.text-error{color:var(--red)}.tabs{gap:6px;margin-bottom:20px;display:flex}.tabs button{color:#64748b;background:0 0;border-radius:7px;padding:8px 12px;font-size:11px;font-weight:650}.tabs button.active{color:var(--blue);background:#e9effd}.tabs button>span{opacity:.7;margin-left:6px;font-size:9px}.history-panel .run-row{padding:23px}.history-panel .run-row:first-child{border-top:0}.history-panel .run-row-name strong{font-size:13px}.history-panel .run-row-name>span{font-size:10px}.history-panel .empty-state,.mistakes-panel>.empty-state{padding:85px 25px}.history-panel .empty-state h3,.mistakes-panel>.empty-state h3{font-size:19px}.history-panel .empty-state p,.mistakes-panel>.empty-state p{font-size:12px}.error-banner{color:#ae4444;background:#fff4f3;border:1px solid #f0cccc;border-radius:8px;align-items:flex-start;gap:9px;margin:15px 0;padding:12px 15px;font-size:12px;display:flex}.loading-state{color:#64748b;flex-direction:column;justify-content:center;align-items:center;gap:16px;min-height:65vh;font-size:13px;display:flex}.loading-state h2{font-size:20px}.loading-state p{text-align:center;max-width:500px}.spinner{animation:1s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.skip-link{z-index:100;background:#fff;padding:12px;position:fixed;top:-80px;left:20px}.skip-link:focus{top:10px}.quiz-page{max-width:1260px}.back-link{color:#64748b;align-items:center;gap:8px;margin-bottom:10px;font-size:11px;display:inline-flex}.back-link:hover{color:var(--blue)}.quiz-heading{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.quiz-heading h1{letter-spacing:-.8px;font-size:26px}.session-progress{margin-bottom:27px}.session-progress>div:first-child{color:#64748b;justify-content:space-between;margin-bottom:10px;font-size:11px;display:flex}.session-progress strong{color:#4c607f}.progress-track{background:#e6ecf7;border-radius:5px;height:5px;overflow:hidden}.progress-track>span{background:var(--blue);border-radius:5px;height:100%;transition:width .3s;display:block}.quiz-layout{grid-template-columns:minmax(0,1fr) 245px;align-items:start;gap:24px;display:grid}.question-panel{background:#fff;border:1px solid #e2e8f2;border-radius:14px;padding:29px}.question-meta{justify-content:space-between;align-items:center;gap:10px;margin-bottom:23px;display:flex}.neutral-badge{color:#64748b;background:#f4f6fa}.question-text{letter-spacing:-.5px;margin-bottom:26px;font-size:21px;font-weight:750;line-height:1.65}.question-image{background:#f9fbfe;border:1px solid #edf1f6;border-radius:10px;justify-content:center;align-items:center;min-height:80px;margin-bottom:24px;padding:16px;display:flex}.question-image img{object-fit:contain;border-radius:4px;max-width:100%;height:auto;max-height:260px}.question-image p{color:var(--red);font-size:12px}.answer-options{flex-direction:column;gap:10px;display:flex}.answer-option{text-align:left;color:#56647c;background:#fff;border:1px solid #e5eaf3;border-radius:9px;align-items:center;gap:13px;width:100%;min-height:61px;padding:14px;font-size:14px;line-height:1.7;display:flex}.answer-option:hover:not(:disabled){background:#f8faff;border-color:#bbccf8}.option-label{color:#64748b;background:#f8fafd;border:1px solid #e5eaf2;border-radius:7px;flex-shrink:0;justify-content:center;align-items:center;width:29px;height:29px;font-size:11px;font-weight:750;display:flex}.answer-option>span:nth-child(2){flex:1}.option-status{color:#64748b;align-items:center;margin-left:auto;display:flex}.option-status kbd{text-align:center;color:#64748b;border:1px solid #e9edf3;border-radius:4px;width:19px;font-size:9px}.answer-option.selected{color:#2b55b7;background:#f1f5ff;border-color:#5783f6;box-shadow:0 0 0 1px #5783f630}.answer-option.selected .option-label{color:#fff;background:#2458eb;border-color:#2458eb}.selected-dot{background:#fff;border:4px solid #2458eb;border-radius:50%;width:15px;height:15px;display:block}.answer-option.correct{box-shadow:none;color:#246b57;background:#f0faf6;border-color:#9bd3be}.answer-option.correct .option-label{color:#fff;background:#26936f;border-color:#26936f}.answer-option.correct .option-status{color:#16836a}.answer-option.incorrect{box-shadow:none;color:#a64843;background:#fff5f3;border-color:#e4aeaa}.answer-option.incorrect .option-label{color:#fff;background:#c95b52;border-color:#c95b52}.answer-option.incorrect .option-status{color:var(--red)}.answer-option:disabled{opacity:1}.answer-feedback{border-radius:9px;margin-top:20px;padding:17px 18px;font-size:11px}.answer-feedback.success{color:#36816a;background:#f0f9f5;border:1px solid #daeee5}.answer-feedback.failure{color:#996b2f;background:#fff8ee;border:1px solid #f2e4cd}.feedback-title{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.feedback-title strong{font-size:12px}.feedback-title>span{margin-left:auto;font-size:10px}.answer-feedback p{color:#658274;margin-top:10px;line-height:1.9}.answer-feedback.failure p{color:#8c795f}.question-actions{border-top:1px solid #edf1f6;justify-content:space-between;align-items:center;gap:10px;margin-top:26px;padding-top:22px;display:flex}.run-aside{flex-direction:column;gap:17px;display:flex}.run-status-panel{padding:20px}.aside-label{color:#64748b;align-items:center;gap:7px;font-size:11px;display:flex}.live-score{letter-spacing:-1.4px;align-items:baseline;gap:8px;margin-top:13px;font-size:34px;font-weight:800;line-height:1.4;display:flex}.live-score>span{letter-spacing:0;color:#64748b;font-size:10px;font-weight:500}.score-key{color:#64748b;gap:14px;margin-top:11px;font-size:9px;display:flex}.score-key>span,.map-legend>span{align-items:center;gap:5px;display:flex}.score-key i,.map-legend i{background:#dfe6f1;border-radius:50%;width:6px;height:6px}.green-dot{background:#5eb299!important}.red-dot{background:#da8c86!important}.blue-dot{background:#6088eb!important}.question-map-panel{padding:20px}.question-map-panel h3{margin-bottom:16px;font-size:12px}.question-map{grid-template-columns:repeat(5,1fr);gap:7px;display:grid}.question-map button{color:#64748b;font-variant-numeric:tabular-nums;background:#f5f7fb;border:1px solid #edf1f7;border-radius:6px;height:31px;font-size:10px}.question-map button.correct{color:#4e9a7f;background:#e9f6f0;border-color:#dcf0e6}.question-map button.incorrect{color:#c67c72;background:#fcedeb;border-color:#f4dbd8}.question-map button.answered{color:#6083d0;background:#e5edff;border-color:#dbe6ff}.question-map button.current{color:#fff;background:#2458eb;border-color:#2458eb;box-shadow:0 0 0 2px #fff,0 0 0 3px #bacdfa}.map-legend{color:#64748b;gap:14px;margin-top:17px;font-size:8px;display:flex}.finish-button{color:#64748b;background:#f7f9fc;border:1px solid #e7edf5;width:100%;min-height:35px;margin-top:20px;font-size:10px}.finish-button:hover:not(:disabled){color:#436195;background:#edf2fa}.study-tip{color:#64748b;gap:10px;padding:0 5px;font-size:10px;line-height:1.9;display:flex}.study-tip>svg{color:#64748b;margin-top:4px}.exam-clock{letter-spacing:-1px;font-variant-numeric:tabular-nums;margin-top:8px;font-size:39px;font-weight:750;line-height:1.6}.exam-clock>span{color:#64748b;padding:0 3px}.run-status-panel>p{color:#64748b;margin-top:3px;font-size:9px}.mock-save-note{color:#64748b;align-items:center;gap:7px;margin-top:18px;font-size:10px;display:flex}.confirm-dialog{color:#18243b;border:1px solid #e3eaf6;border-radius:18px;width:calc(100% - 30px);max-width:440px;margin:auto;padding:30px;position:fixed;inset:0;box-shadow:0 30px 100px #18243b20}.confirm-dialog::backdrop{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:#18243b66}.dialog-icon{color:var(--blue);background:#eef3ff;border-radius:12px;justify-content:center;align-items:center;width:48px;height:48px;margin-bottom:20px;display:flex}.confirm-dialog h2{letter-spacing:-.6px;font-size:23px}.confirm-dialog p{color:#64748b;margin-top:12px;font-size:12px;line-height:1.9}.dialog-actions{justify-content:flex-end;gap:9px;margin-top:25px;display:flex}.result-hero{text-align:center;background:#edf3ff;border:1px solid #e0e9fb;border-radius:16px;margin:9px 0 28px;padding:36px 25px;position:relative}.result-trophy{color:#5380ed;background:#fff;border:1px solid #dce7ff;border-radius:22px;justify-content:center;align-items:center;width:67px;height:67px;margin:0 auto 19px;display:flex;box-shadow:0 6px 20px #2d57ab08}.result-hero h1{letter-spacing:-1px;margin-top:16px;font-size:29px}.result-hero>p{color:#64748b;margin:10px 0 20px;font-size:12px}.result-score{font-variant-numeric:tabular-nums;justify-content:center;align-items:baseline;gap:8px;display:flex}.result-score strong{letter-spacing:-4px;color:#214cbb;font-size:68px;font-weight:800;line-height:1.3}.result-score>span{color:#64748b;letter-spacing:-.5px;font-size:17px}.result-tags{color:#64748b;flex-wrap:wrap;justify-content:center;align-items:center;gap:17px;margin:8px 0 23px;font-size:10px;display:flex}.result-tags>span{align-items:center;gap:4px;display:flex}.pass-tag{color:#16836a;background:#dcefe8;border-radius:20px;padding:4px 9px}.fail-tag{color:#aa714c;background:#f7eade;border-radius:20px;padding:4px 9px}.result-actions{justify-content:center;gap:9px;display:flex}.review-panel .panel-heading{border-bottom:1px solid #edf1f7;flex-wrap:wrap;padding:22px}.review-panel .panel-heading p{margin-top:5px;font-size:10px}.tabs.compact{margin:0}.tabs.compact button{padding:7px 10px;font-size:10px}.review-toggle{text-align:left;background:#fff;align-items:center;gap:14px;width:100%;padding:20px 23px;display:flex}.review-item+.review-item{border-top:1px solid #edf1f6}.review-icon{border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:28px;height:28px;display:flex}.review-icon.correct{color:#4a9b7a;background:#eaf6f0}.review-icon.incorrect{color:#c8776f;background:#fcedec}.review-icon.skipped{color:#64748b;background:#f2f5fa}.review-question{flex:1}.review-question>.muted{margin-bottom:4px;font-size:9px;display:block}.review-question>strong{font-size:12px;font-weight:650;line-height:1.8;display:block}.review-toggle>svg{color:#64748b}.rotated{transform:rotate(90deg)}.review-detail{padding:0 30px 24px 65px}.review-option{color:#64748b;border:1px solid #e8edf4;border-radius:6px;align-items:center;gap:10px;margin:7px 0;padding:10px 12px;font-size:11px;display:flex}.review-option.correct{color:#4f8d72;background:#f0f9f4;border-color:#dceee3}.review-option.incorrect{color:#b27465;background:#fff5f3;border-color:#f1ded8}.review-option>span{flex:1}.review-option small{font-size:8px}.review-detail>.muted{margin-top:9px;font-size:10px}.review-explanation{color:#64748b;background:#f6f8fc;border-radius:8px;margin-top:15px;padding:15px;font-size:11px;line-height:1.9}.mistake-item+.mistake-item{border-top:1px solid #edf1f7}.mistake-toggle{text-align:left;background:#fff;align-items:center;gap:20px;width:100%;padding:24px;display:flex}.mistake-toggle>div{flex:1}.mistake-toggle h3{margin-top:9px;font-size:13px;font-weight:650;line-height:1.9}.mistake-number{color:#c49176;background:#fff5ee;border-radius:7px;justify-content:center;align-items:center;width:29px;height:29px;font-size:12px;display:flex}.mistake-toggle>svg{color:#64748b}.mistake-detail{color:#64748b;padding:0 30px 25px 73px;font-size:12px;line-height:1.9}.mistake-detail>p{margin-bottom:11px}.mistake-detail>p>strong{color:#5d8a73}.mistake-detail>.muted{font-size:10px}@media (width>=1500px){.page{padding-top:45px}.welcome-panel{min-height:315px}.welcome-copy h2{font-size:37px}.welcome-copy p{font-size:12px}.mode-card{min-height:222px}.mode-card h3{font-size:15px}.mode-card p{font-size:11px}.mode-bottom{font-size:10px}.welcome-copy{padding:32px 40px}.road-art{max-width:520px}.stats-strip{padding:32px 0}.stat-label{font-size:12px}.stat-number{font-size:30px}.stat-number>span{font-size:10px}}@media (width<=1200px){.sidebar{width:190px;padding:28px 15px}.workspace{margin-left:190px}.topbar{padding:0 28px}.page{padding:28px}.app-footer{padding-left:28px;padding-right:28px}.mode-grid{gap:10px}.mode-card{padding:17px 14px}.mode-card h3{font-size:12px}.stat{padding:0 15px}.stat-number{line-height:1.5;display:block}.stat-number>span{display:block}.stat-label{font-size:10px}.welcome-copy h2{font-size:29px}.quiz-layout{grid-template-columns:minmax(0,1fr) 215px;gap:17px}.question-panel{padding:24px}.question-text{font-size:19px}.run-status-panel,.question-map-panel{padding:16px}.question-map{gap:6px}.question-map button{height:28px}.feedback-title>span{margin-left:28px}.road-label{font-size:8px;right:25px}.dashboard-bottom{grid-template-columns:1.2fr 1fr;gap:15px}.level-row{gap:10px}}@media (width<=1000px){.sidebar{width:170px;padding:27px 12px}.workspace{margin-left:170px}.sidebar nav a{padding:11px 12px;font-size:12px}.brand{font-size:31px}.logo-mark{width:35px;height:35px}.workspace-label{margin-left:12px;font-size:8px}.page{padding:25px}.topbar{height:66px;padding:0 25px}.topbar-right{font-size:9px}.page-title h1{font-size:26px}.mode-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.mode-card{min-height:190px;padding:20px}.mode-card h3{font-size:14px}.mode-card p{font-size:11px}.mode-icon{margin-bottom:12px}.mode-bottom{font-size:10px}.welcome-copy{padding:27px}.welcome-copy h2{font-size:27px}.welcome-copy p{font-size:10px}.road-art{width:47%;height:85%;right:-20px}.road-label{display:none}.dashboard-bottom{grid-template-columns:1fr}.quiz-layout{grid-template-columns:minmax(0,1fr)}.run-aside{grid-template-columns:190px 1fr;align-items:start;display:grid}.run-status-panel{height:100%}.study-tip{grid-column:1/-1;max-width:450px}.question-map{grid-template-columns:repeat(10,1fr)}.question-map button{height:27px}.question-map-panel .finish-button{float:right;width:auto;margin-top:12px}.question-map-panel .map-legend{float:left}.question-map-panel{padding:20px}.question-map-panel h3{margin-bottom:14px}.quiz-heading{margin-bottom:20px}.stat{padding:0 11px}.stat-label{font-size:9px}.stat-icon svg{width:15px}.stat{grid-template-columns:16px 1fr;gap:5px}.context-pill{font-size:9px}.app-footer{padding:20px 25px}.footer-note{font-size:7px}}@media (width<=760px){.sidebar{border-right:0;border-bottom:1px solid var(--line);top:0;flex-direction:row;justify-content:space-between;align-items:center;width:100%;height:70px;padding:13px 20px;position:sticky;inset:auto}.brand{gap:7px;margin:0;font-size:29px}.brand>.logo-mark{border-radius:10px;width:32px;height:32px}.workspace-label,.sidebar-bottom{display:none}.sidebar nav{flex-direction:row;gap:2px}.sidebar nav a{gap:6px;padding:9px 10px;font-size:10px}.sidebar nav a svg{width:16px;height:16px}.workspace{margin-left:0}.topbar{height:45px;padding:0 22px;font-size:9px}.profile-dot{display:none}.topbar-right{font-size:8px}.page{min-height:calc(100vh - 188px);padding:27px 22px 17px}.page-title{margin-bottom:22px}.page-title h1{font-size:25px}.page-title p{font-size:11px}.context-pill{display:none}.welcome-panel{min-height:280px}.welcome-copy h2{font-size:29px}.welcome-copy p{font-size:11px}.welcome-copy{padding:25px}.road-art{width:41%;height:60%;right:-10px}.stats-strip{margin-bottom:26px;padding:24px 0}.stat-number{font-size:26px}.stat-number>span{font-size:8px}.stat-label{font-size:9px}.stat{padding:0 13px;display:block}.stat-icon{display:none}.section-heading h2{font-size:16px}.section-heading p{font-size:10px}.count-control{font-size:0}.count-control select{font-size:10px}.mode-card{min-height:190px;padding:21px}.mode-card h3{font-size:13px}.mode-card p{font-size:10px}.mode-bottom{font-size:9px}.dashboard-bottom{margin-top:24px}.source-note{font-size:8px;line-height:1.9}.app-footer{padding:18px 22px;font-size:8px}.footer-note{font-size:7px}.resume-banner{gap:10px;margin-top:-7px;padding:13px}.resume-banner strong{font-size:11px}.resume-banner p{font-size:9px}.resume-banner .button{padding:9px 11px;font-size:10px}.resume-icon{display:none}.quiz-heading h1{font-size:24px}.quiz-heading .button{padding:9px 12px;font-size:10px}.quiz-page{padding-top:22px}.question-text{font-size:19px}.question-panel{padding:24px}.answer-option{min-height:63px;font-size:12px}.option-status kbd{display:none}.question-map{grid-template-columns:repeat(8,1fr)}.run-aside{grid-template-columns:160px 1fr;gap:13px}.question-map-panel .map-legend{float:none}.question-map-panel .finish-button{float:none;width:100%;margin-top:14px}.score-key{flex-direction:column;gap:7px}.question-map-panel{padding:17px}.live-score{flex-direction:column;gap:0;font-size:31px}.live-score>span{font-size:9px}.exam-clock{font-size:32px}.study-tip{font-size:9px}.page-title>.button{padding:10px 12px;font-size:10px}.history-panel .run-row{gap:10px;padding:20px 15px}.history-panel .run-row-name strong{font-size:11px}.history-panel .run-row-name>span{font-size:9px}.run-row-result strong{font-size:10px}.result-hero h1{font-size:24px}.result-hero>p{max-width:290px;margin:12px auto 20px;font-size:11px}.review-detail{padding-left:24px;padding-right:24px}.result-hero{padding:28px 20px}.result-score strong{font-size:60px}.review-panel .panel-heading{align-items:flex-start;gap:15px}.review-question>strong{font-size:11px}.review-toggle{gap:10px;padding:20px 17px}.mistake-toggle{gap:12px;padding:20px 17px}.mistake-toggle h3{font-size:12px}.mistake-detail{padding:0 20px 23px;font-size:11px}}@media (width<=440px){.sidebar{height:65px;padding:12px 15px}.sidebar nav a{gap:5px;padding:9px 8px;font-size:9px}.brand{gap:5px;font-size:26px}.brand>.logo-mark{border-radius:8px;width:28px;height:28px}.sidebar nav a svg{width:14px;height:14px}.topbar{padding:0 18px}.topbar>span{font-size:8px}.topbar-right{font-size:7px}.local-indicator{width:5px;height:5px}.page{padding:23px 17px 17px}.page-title h1{font-size:23px}.page-title p{font-size:10px}.page-title{align-items:flex-start}.welcome-copy{padding:24px 21px}.welcome-copy h2{font-size:28px}.welcome-copy p{font-size:10px}.road-art{display:none}.welcome-panel{min-height:280px}.stats-strip{grid-template-columns:repeat(2,1fr);gap:17px;padding:22px 0}.stat{border:0;border-left:1px solid var(--line);padding-left:18px}.stat:first-child,.stat:nth-child(3){border-left:0;padding-left:0}.stat-label{font-size:10px}.stat-number{gap:7px;font-size:25px;display:flex}.stat-number>span{max-width:75px;font-size:8px;line-height:1.7}.mode-grid{gap:11px}.mode-card{min-height:211px;padding:17px 14px}.mode-card h3{font-size:12px}.mode-card p{font-size:10px}.mode-icon{width:37px;height:37px;margin-bottom:15px}.mode-icon svg{width:21px}.mode-bottom{gap:2px;font-size:8px}.mode-bottom svg{width:16px}.section-heading p{max-width:180px;font-size:9px}.section-heading{align-items:center}.count-control select{padding:8px;font-size:9px}.panel-heading{padding:19px}.level-list{padding:17px 19px 22px}.panel-description{padding:0 19px}.app-footer{flex-wrap:wrap;padding:17px}.footer-note{font-size:6px}.question-panel{padding:21px 17px}.question-text{font-size:18px;line-height:1.65}.question-meta{margin-bottom:19px}.question-image{padding:10px}.question-image img{max-height:220px}.answer-option{gap:10px;padding:11px;font-size:11px}.option-label{width:27px;height:27px;font-size:10px}.question-actions .button{padding:10px 11px;font-size:10px}.question-actions .text-button{padding-left:0}.question-actions,.question-actions .flex{gap:5px}.run-aside{flex-direction:column;display:flex}.run-status-panel{flex-wrap:wrap;align-items:center;gap:10px;width:100%;padding:14px 17px;display:flex}.live-score{flex-direction:row;gap:7px;margin:0 0 0 auto;font-size:26px}.score-key{flex-direction:row;width:100%;margin:0}.run-status-panel>.exam-clock{margin:0 0 0 auto;font-size:27px}.run-status-panel>p{width:100%;margin-top:0}.question-map-panel{width:100%}.question-map{grid-template-columns:repeat(10,1fr);gap:6px}.question-map button{height:26px;font-size:9px}.map-legend{font-size:9px}.question-map-panel .finish-button{min-height:39px}.run-row{gap:10px;padding:16px}.run-row-name strong{font-size:10px}.run-row-name>span,.run-row-result .badge{font-size:8px}.mobile-hide{display:none}.result-hero h1{font-size:23px}.result-score strong{font-size:57px}.result-actions .button{font-size:10px}.result-tags{gap:9px;font-size:9px}.review-detail{padding:0 17px 22px}.review-option{font-size:10px}.feedback-title>span{width:100%;margin-left:0;padding-left:28px}.feedback-title strong{font-size:11px}.answer-feedback{padding:14px}.answer-feedback p{font-size:10px}.review-panel .tabs button{font-size:9px}.page-title>.button{min-height:37px;padding:10px;font-size:9px}.page-title>.button svg{width:13px}.mistake-toggle h3{font-size:11px}.mistake-toggle{gap:10px}.mistake-number{flex-shrink:0;width:25px;height:25px;font-size:10px}}@media (width<=760px){.answer-option{font-size:14px}.answer-feedback p,.review-explanation,.mistake-detail{font-size:12px}.question-text{font-size:20px}.question-map{grid-template-columns:repeat(8,1fr)}.question-map button{min-height:34px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}.chinese-text{overflow-wrap:anywhere;margin-top:.4em;font-size:.88em;font-weight:400;line-height:1.65;display:block}.topbar-actions{align-items:center;gap:20px;display:flex}.language-toggle{border:1px solid var(--line);color:#526581;cursor:pointer;white-space:nowrap;background:#fff;border-radius:9px;align-items:center;gap:8px;min-height:34px;padding:6px 10px;font-size:11px;display:inline-flex}.language-toggle[aria-pressed=true]{color:#2458eb;background:#f0f5ff;border-color:#b9cdf9}.language-toggle:focus-visible{outline-offset:3px;outline:2px solid #2458eb}.language-switch{background:#d9e1ef;border-radius:20px;width:26px;height:16px;padding:2px}.language-switch:after{content:"";background:#fff;border-radius:50%;width:12px;height:12px;display:block}.language-toggle[aria-pressed=true] .language-switch{background:#2458eb}.language-toggle[aria-pressed=true] .language-switch:after{transform:translate(10px)}@media (width<=760px){.topbar-actions .topbar-right{display:none}.language-toggle{min-height:32px;font-size:10px}}.question-references{border-top:1px solid var(--border,#e2e8f0);gap:.35rem;margin-top:1rem;padding-top:.85rem;font-size:.75rem;line-height:1.6;display:grid}.question-references>span{color:var(--muted,#64748b)}.question-references a{color:#315aca;text-underline-offset:3px;text-decoration:underline}.question-references a:hover{color:#17399a}@media (width<=760px){.sidebar{flex-wrap:wrap;gap:8px;height:auto;padding:10px 16px 6px}.sidebar nav{flex:0 0 100%;gap:3px;width:100%;min-width:0;overflow-x:auto}.sidebar nav a{white-space:nowrap;flex:none;padding:9px 8px;font-size:11px}.sidebar nav a svg{width:15px;height:15px;display:block}}.source-selection .count-control{flex-wrap:wrap;min-width:0}.source-selection select{min-width:0;max-width:100%}.source-selection>.muted{flex-shrink:0;font-size:12px}@media (width<=760px){.source-selection{flex-direction:column;align-items:stretch;gap:8px}.source-selection .count-control{flex-direction:column;align-items:stretch;gap:8px;font-size:12px;display:flex}.source-selection select{width:100%;font-size:12px}}.practice-sync-note{color:#64748b;flex-wrap:wrap;gap:12px;margin-bottom:16px;font-size:12px;display:flex}.practice-sync-note button{color:var(--blue);text-underline-offset:3px;text-decoration:underline}.mode-card.mastery-card{background:#f4faf7;border-color:#c5dfd7;flex-direction:row;grid-column:1/-1;align-items:center;gap:28px;min-height:0;padding:24px}.mastery-copy{flex:1;gap:16px;display:flex}.mastery-card .mode-icon{color:var(--green);background:#e2f2eb;flex-shrink:0;margin:0}.mastery-card h3{font-size:18px}.mastery-card p{max-width:480px;margin-top:4px;font-size:13px}.mastery-rule{color:#64748b;margin-top:8px;font-size:11px;display:block}.mastery-progress{flex:0 0 265px;gap:10px;display:grid}.mastery-progress strong{color:#146b57;font-size:24px}.mastery-progress strong span{color:#526d63;font-size:12px;font-weight:600}.mastery-progress progress{background:#dcebe4;border:0;border-radius:4px;width:100%;height:6px;display:block;overflow:hidden}.mastery-progress progress::-webkit-progress-bar{background:#dcebe4}.mastery-progress progress::-webkit-progress-value{background:var(--green);border-radius:4px}.mastery-progress progress::-moz-progress-bar{background:var(--green);border-radius:4px}.mastery-start{color:#146b57;justify-content:space-between;align-items:center;gap:12px;font-size:12px;font-weight:700;display:flex}.question-progress-meta{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:14px;display:flex}.mastery-streak{color:#64748b;white-space:nowrap;align-items:center;gap:8px;font-size:11px;display:inline-flex}.mastery-streak.complete{color:var(--green)}.streak-dots{gap:4px;display:inline-flex}.streak-dots i{border:1px solid #a6b8b1;border-radius:50%;width:8px;height:8px}.streak-dots i.filled{background:var(--green);border-color:var(--green)}@media (width<=700px){.mode-card.mastery-card{flex-direction:column;align-items:stretch;gap:18px;padding:20px 16px}.mastery-copy{gap:12px}.mastery-progress{flex-basis:auto}.mastery-card h3{font-size:17px}.mastery-card p{font-size:12px}.question-progress-meta{justify-content:flex-start}}.question-actions .correct-answer-button{background:var(--green);border-color:var(--green);color:#fff;opacity:1}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-ordinal{syntax:"*";inherits:false}@property --tw-slashed-zero{syntax:"*";inherits:false}@property --tw-numeric-figure{syntax:"*";inherits:false}@property --tw-numeric-spacing{syntax:"*";inherits:false}@property --tw-numeric-fraction{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}