:root{--nn-inset-top: max(env(safe-area-inset-top, 0px), var(--safe-area-inset-top, 0px));--nn-inset-right: max(env(safe-area-inset-right, 0px), var(--safe-area-inset-right, 0px));--nn-inset-bottom: max(env(safe-area-inset-bottom, 0px), var(--safe-area-inset-bottom, 0px));--nn-inset-left: max(env(safe-area-inset-left, 0px), var(--safe-area-inset-left, 0px))}:root{--nn-navy: #0D1426;--nn-navy-2: #15213D;--nn-navy-3: #1E2D52;--nn-navy-line: rgba(243, 236, 223, .1);--nn-cream: #F3ECDF;--nn-cream-2: #FBF7EE;--nn-cream-3: #FFFFFF;--nn-cream-line: rgba(13, 20, 38, .1);--nn-marigold: #E8A53A;--nn-marigold-deep: #A9650B;--nn-done: #6FA874;--nn-marigold-soft: rgba(232, 165, 58, .18);--nn-red: #C8553D;--nn-green: #3E7A45;--skill-speaking: #C8553D;--skill-writing: #2F7F6E;--skill-listening: #4F7CB0;--skill-reading: #B8862B;--skill-speaking-soft: #F2D3C8;--skill-writing-soft: #CBE3E1;--skill-listening-soft: #D3DEEE;--skill-reading-soft: #F3DFB2;--skill-speaking-deep: #AE4A34;--skill-writing-deep: #27705F;--skill-listening-deep: #43699A;--skill-reading-deep: #8A6315;--drill-targeted: #C8553D;--drill-targeted-soft: #F2D3C8;--drill-review: #2F5E9E;--drill-review-soft: #D3DEEE;--drill-benchmark: #3E7A45;--drill-benchmark-soft: #D6E6CF;--drill-strategy: #E8A53A;--drill-strategy-soft: #F5E2B5;--drill-mixed: #1F6B6B;--drill-mixed-soft: #CBE3E1;--drill-plan: #0D1426;--drill-plan-soft: #DCD8CA;--nn-font-display: "Fraunces", Georgia, "Times New Roman", serif;--nn-font-body: "Poppins", system-ui, -apple-system, sans-serif;--nn-font-script: "Caveat", cursive;--nn-radius: 18px;--nn-radius-sm: 12px;--nn-tab-height: 64px;--nn-header-height: 56px;--nn-frame: 480px;--nn-gutter: 16px;--nn-side: var(--nn-gutter);--nn-card-pad: 16px;--nn-sheet-max: 480px;--nn-measure: 70ch;--nn-read: 720px;--nn-dur-fast: .14s;--nn-dur: .22s;--nn-dur-slow: .36s;--nn-ease: cubic-bezier(.2, .8, .2, 1);--nn-ease-out: cubic-bezier(.16, 1, .3, 1)}:root[lang=ar],:root[lang=fa],:root[lang=ur],:root[lang=be],:root[lang=ru],:root[lang=uk],:root[lang=kk],:root[lang=ky],:root[lang=hy],:root[lang=ka],:root[lang=hi],:root[lang=mr],:root[lang=bn],:root[lang=gu],:root[lang=pa],:root[lang=kn],:root[lang=ml],:root[lang=ta],:root[lang=te],:root[lang=th],:root[lang=my],:root[lang=ja],:root[lang=ko],:root[lang=zh]{--nn-font-display: Georgia, "Noto Serif", "Times New Roman", serif;--nn-font-script: var(--nn-font-body)}:root[lang=vi]{--nn-font-script: var(--nn-font-body)}:root[lang=ar],:root[lang=fa],:root[lang=ur],:root[lang=be],:root[lang=ru],:root[lang=uk],:root[lang=kk],:root[lang=ky],:root[lang=hy],:root[lang=ka],:root[lang=bn],:root[lang=gu],:root[lang=pa],:root[lang=kn],:root[lang=ml],:root[lang=ta],:root[lang=te],:root[lang=th],:root[lang=my],:root[lang=ja],:root[lang=ko],:root[lang=zh]{--nn-font-body: system-ui, -apple-system, "Noto Sans", sans-serif}@media(prefers-reduced-motion:reduce){:root{--nn-dur-fast: 0ms;--nn-dur: 0ms;--nn-dur-slow: 0ms}}:root{--nn-page: var(--nn-cream);--nn-card: var(--nn-cream-2);--nn-card-raised: var(--nn-cream-3);--nn-sheet: var(--nn-cream);--nn-sheet-well: var(--nn-cream-2);--nn-scrim: rgba(13, 20, 38, .45);--nn-card-line: var(--nn-cream-line);--nn-ink: var(--nn-navy);--nn-ink-2: rgba(13, 20, 38, .68);--nn-ink-3: rgba(13, 20, 38, .45);--nn-hero: var(--nn-navy);--nn-hero-ink: var(--nn-cream);--nn-hero-ink-2: rgba(243, 236, 223, .72);--nn-track: rgba(13, 20, 38, .1);--nn-accent-ink: var(--nn-marigold-deep);--nn-shadow: 0 10px 30px rgba(13, 20, 38, .1);--nn-ink-line: #0D1426;--nn-drop: 0 5px 0 #0A1020;--nn-drop-sm: 0 4px 0 #0A1020}:root[data-theme=dark]{--nn-page: var(--nn-navy);--nn-card: var(--nn-navy-2);--nn-card-raised: var(--nn-navy-3);--nn-sheet: var(--nn-navy-2);--nn-sheet-well: var(--nn-navy);--nn-scrim: rgba(5, 9, 20, .62);--nn-card-line: var(--nn-navy-line);--nn-ink: var(--nn-cream);--nn-ink-2: rgba(243, 236, 223, .72);--nn-ink-3: rgba(243, 236, 223, .48);--nn-hero: var(--nn-navy-2);--nn-hero-ink: var(--nn-cream);--nn-hero-ink-2: rgba(243, 236, 223, .72);--nn-track: rgba(243, 236, 223, .14);--nn-accent-ink: var(--nn-marigold);--nn-shadow: 0 10px 30px rgba(0, 0, 0, .35)}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--nn-page: var(--nn-navy);--nn-card: var(--nn-navy-2);--nn-card-raised: var(--nn-navy-3);--nn-sheet: var(--nn-navy-2);--nn-sheet-well: var(--nn-navy);--nn-scrim: rgba(5, 9, 20, .62);--nn-card-line: var(--nn-navy-line);--nn-ink: var(--nn-cream);--nn-ink-2: rgba(243, 236, 223, .72);--nn-ink-3: rgba(243, 236, 223, .48);--nn-hero: var(--nn-navy-2);--nn-hero-ink: var(--nn-cream);--nn-hero-ink-2: rgba(243, 236, 223, .72);--nn-track: rgba(243, 236, 223, .14);--nn-accent-ink: var(--nn-marigold);--nn-shadow: 0 10px 30px rgba(0, 0, 0, .35)}}:root{--skill: var(--nn-marigold);--skill-soft: var(--nn-marigold-soft);--skill-ink: var(--nn-accent-ink);--skill-deep: var(--nn-marigold-deep)}.nn-skill-speaking{--skill: var(--skill-speaking);--skill-soft: var(--skill-speaking-soft);--skill-ink: #9E3F2B;--skill-deep: var(--skill-speaking-deep)}.nn-skill-writing{--skill: var(--skill-writing);--skill-soft: var(--skill-writing-soft);--skill-ink: #22604F;--skill-deep: var(--skill-writing-deep)}.nn-skill-listening{--skill: var(--skill-listening);--skill-soft: var(--skill-listening-soft);--skill-ink: #355C8A;--skill-deep: var(--skill-listening-deep)}.nn-skill-reading{--skill: var(--skill-reading);--skill-soft: var(--skill-reading-soft);--skill-ink: #8A6315;--skill-deep: var(--skill-reading-deep)}:root[data-theme=dark] .nn-skill-speaking{--skill-soft: rgba(200, 85, 61, .22);--skill-ink: #E58A74}:root[data-theme=dark] .nn-skill-writing{--skill-soft: rgba(47, 127, 110, .24);--skill-ink: #6FBFAE}:root[data-theme=dark] .nn-skill-listening{--skill-soft: rgba(79, 124, 176, .26);--skill-ink: #8FB3DE}:root[data-theme=dark] .nn-skill-reading{--skill-soft: rgba(184, 134, 43, .24);--skill-ink: #E2B45A}@media(prefers-color-scheme:dark){:root:not([data-theme=light]) .nn-skill-speaking{--skill-soft: rgba(200, 85, 61, .22);--skill-ink: #E58A74}:root:not([data-theme=light]) .nn-skill-writing{--skill-soft: rgba(47, 127, 110, .24);--skill-ink: #6FBFAE}:root:not([data-theme=light]) .nn-skill-listening{--skill-soft: rgba(79, 124, 176, .26);--skill-ink: #8FB3DE}:root:not([data-theme=light]) .nn-skill-reading{--skill-soft: rgba(184, 134, 43, .24);--skill-ink: #E2B45A}}html.nn-page-html,body.nn-page{background:var(--nn-page)}body.nn-page{margin:0;color:var(--nn-ink);font-family:var(--nn-font-body);-webkit-font-smoothing:antialiased;min-height:100vh;min-height:100dvh}.nn-app{max-width:var(--nn-frame);margin:0 auto;min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;position:relative}.nn-main{flex:1 1 auto;--nn-safe-bottom: var(--nn-inset-bottom);--nn-main-pad-top: 12px;padding:var(--nn-main-pad-top) var(--nn-side) calc(var(--nn-tab-height) + 28px + var(--nn-inset-bottom))}.nn-main--flush{padding-left:0;padding-right:0}.nn-main--no-tabs{padding-bottom:calc(28px + var(--nn-inset-bottom))}.nn-display,.nn-h1,.nn-h2,.nn-h3,.nn-wordmark,.nn-band-big{font-family:var(--nn-font-display);font-weight:800;letter-spacing:-.01em;color:var(--nn-ink);margin:0}.nn-h1{font-size:30px;line-height:1.1}.nn-h2{font-size:22px;line-height:1.15}.nn-h3{font-size:17px;line-height:1.2}.nn-eyebrow{font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--nn-ink-3)}.nn-script{font-family:var(--nn-font-script);font-size:19px;color:var(--nn-red);font-weight:600}.nn-muted{color:var(--nn-ink-2)}.nn-faint{color:var(--nn-ink-3)}.nn-small{font-size:13px}.nn-xs{font-size:12px}.nn-strong{font-weight:600}.nn-page a{text-decoration:none}.nn-page a:not([class]){color:inherit}.nn-page svg:where(:not([data-art])){fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.nn-page svg[data-fill]{fill:currentColor;stroke:none}.nn-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:calc(10px + var(--nn-inset-top)) var(--nn-side) 8px;min-height:var(--nn-header-height)}.nn-header__left{display:flex;align-items:center;gap:10px;min-width:0}.nn-header__title{font-family:var(--nn-font-display);font-weight:800;font-size:24px;line-height:1.1;color:var(--nn-ink);display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;line-clamp:2;overflow:hidden;overflow-wrap:anywhere}.nn-wordmark{font-size:24px;display:inline-block;position:relative;padding-bottom:.3em;letter-spacing:-.01em;color:var(--nn-ink)}.nn-wordmark em{position:relative;font-style:normal;color:var(--nn-accent-ink)}.nn-wordmark__swish{position:absolute;left:-.12em;right:-.12em;bottom:-.36em;width:calc(100% + .24em);height:.44em;overflow:visible}.nn-wordmark__swish path{fill:none;stroke:var(--nn-marigold);stroke-width:.115em;stroke-linecap:round;vector-effect:non-scaling-stroke}.nn-header__actions{display:flex;align-items:center;gap:8px}.nn-icon-btn{position:relative;width:42px;height:42px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:var(--nn-card);border:1px solid var(--nn-card-line);color:var(--nn-ink);cursor:pointer;-webkit-tap-highlight-color:transparent}.nn-icon-btn svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}.nn-icon-btn svg.nn-dumbbell{width:26px;height:26px;stroke:var(--nn-navy);stroke-width:1.6}.nn-dumbbell__bar{fill:#fbf6ec}.nn-dumbbell__plate{fill:var(--nn-marigold)}.nn-dumbbell__shine{fill:none;stroke:#fbf6ec;stroke-width:1.3}.nn-icon-btn--ghost{background:transparent;border-color:transparent}.nn-header__upgrade{padding:6px 11px;border-radius:10px;border:1.5px solid var(--nn-navy);background:var(--nn-marigold);color:var(--nn-navy);font-family:var(--nn-font-body);font-weight:800;font-size:12.5px;white-space:nowrap;cursor:pointer}.nn-icon-btn{position:relative}.nn-badge{position:absolute;top:-9px;right:-10px;min-width:20px;height:20px;padding:0 5px;border-radius:10px;background:var(--nn-marigold);color:var(--nn-navy);font-size:12px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;border:2px solid var(--nn-page)}.nn-back{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;margin-left:-8px;color:var(--nn-ink);border-radius:50%;-webkit-tap-highlight-color:transparent}.nn-back svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}.nn-tabs{position:fixed;left:0;right:0;bottom:0;z-index:900;display:flex;justify-content:center;background:var(--nn-hero);border-top:1px solid rgba(243,236,223,.08);padding-bottom:var(--nn-inset-bottom)}.nn-tabs__inner{width:100%;max-width:var(--nn-frame);display:grid;grid-template-columns:repeat(4,1fr);height:var(--nn-tab-height)}.nn-tab{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;padding-top:7px;color:var(--nn-hero-ink-2)!important;font-size:11.5px;font-weight:500;position:relative;background:none;border:0;font-family:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent}.nn-tab svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.nn-tabs .nn-tab--active,a.nn-tab--active{color:var(--nn-marigold)!important}.nn-tab--active:before{content:"";position:absolute;top:0;width:12px;height:10px;background:var(--nn-marigold);clip-path:polygon(0 0,100% 0,100% 100%,50% 62%,0 100%)}.nn-card{background:var(--nn-card);border:2px solid var(--nn-ink-line);border-radius:var(--nn-radius);padding:calc(var(--nn-card-pad) - 1px);box-shadow:var(--nn-drop)}.nn-card--raised{background:var(--nn-card-raised)}.nn-card--hero{background:var(--nn-hero);color:var(--nn-hero-ink)}.nn-card--hero .nn-h1,.nn-card--hero .nn-h2,.nn-card--hero .nn-h3,.nn-card--hero .nn-band-big{color:var(--nn-hero-ink)}.nn-card--hero .nn-muted,.nn-card--hero .nn-eyebrow{color:var(--nn-hero-ink-2)}.nn-card--hero .nn-bar{background:#f3ecdf2e}.nn-card--hero .nn-chip--ghost{border-color:#f3ecdf40;color:var(--nn-hero-ink)}.nn-card--hero.nn-hero--skill{border-top:4px solid var(--skill)}.nn-card--hero.nn-hero--gold{border-top:4px solid var(--nn-marigold)}.nn-card--dashed{background:transparent;border:1.5px dashed var(--nn-card-line)}.nn-section{margin-top:22px}.nn-section__head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:10px}.nn-section__head .nn-h2{font-size:20px}.nn-link{color:var(--skill-ink);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:4px}.nn-link svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2.2}.nn-stack>*+*{margin-top:12px}.nn-row{display:flex;align-items:center;gap:10px}.nn-row--between{justify-content:space-between}.nn-grow{flex:1 1 auto;min-width:0}.nn-chip{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:600;background:var(--skill-soft);color:var(--skill-ink);white-space:nowrap}.nn-chip--solid{background:var(--nn-marigold);color:var(--nn-navy)}.nn-chip--skill{background:var(--skill-deep);color:var(--nn-cream)}.nn-chip--cream{background:var(--nn-cream);color:var(--nn-navy)}.nn-chip--ghost{background:transparent;border:1px solid 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ease,filter .12s ease}.nn-btn:active{transform:translateY(1px)}.nn-btn svg{flex-shrink:0;width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}.nn-btn--primary{background:var(--nn-navy);color:var(--nn-cream)}:root[data-theme=dark] .nn-btn--primary{background:var(--nn-cream);color:var(--nn-navy)}@media(prefers-color-scheme:dark){:root:not([data-theme=light]) .nn-btn--primary{background:var(--nn-cream);color:var(--nn-navy)}}.nn-btn--gold{background:var(--nn-marigold);color:var(--nn-navy)}.nn-btn--skill{background:var(--skill-deep);color:var(--nn-cream)}:root[data-theme=dark] .nn-btn--skill{background:var(--skill-deep);color:var(--nn-cream)}@media(prefers-color-scheme:dark){:root:not([data-theme=light]) .nn-btn--skill{background:var(--skill-deep);color:var(--nn-cream)}}.nn-btn--outline{background:transparent;border-color:var(--nn-card-line);color:var(--nn-ink)}.nn-btn--ghost{background:transparent;color:var(--nn-accent-ink)}.nn-btn--block{width:100%}.nn-btn--sm{min-height:38px;padding:0 14px;font-size:14px;border-radius:11px}.nn-btn[disabled],.nn-btn[aria-disabled=true]{opacity:.45;pointer-events:none}.nn-sticky-cta{position:sticky;bottom:calc(-1 * var(--nn-main-pad-bottom));z-index:3;margin:0 calc(-1 * var(--nn-side)) calc(-1 * var(--nn-main-pad-bottom));padding:12px var(--nn-side) calc(12px + var(--nn-safe-bottom));background:var(--nn-page);border-top:1px solid var(--nn-card-line)}.nn-sticky-cta .nn-btn[disabled],.nn-sticky-cta 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.42);border-radius:50%;background:#fbf6ec;color:var(--nn-navy);border:2px solid var(--badge-line);box-shadow:3px 3px 0 var(--badge-shadow);transform:rotate(var(--badge-tilt, 0deg));display:flex;flex-direction:column;align-items:center;justify-content:center;line-height:1}.nn-ring__badge b{font-family:var(--nn-font-display);font-size:calc(var(--ring-size) * .153);font-weight:800}.nn-ring__badge span{font-size:8.5px;font-weight:700;letter-spacing:.12em;margin-top:2px}.nn-ring__badge--empty{background:var(--nn-cream);border-style:dashed;box-shadow:none}.nn-skills{display:grid;grid-template-columns:1fr 1fr;gap:18px 12px;margin-top:14px}.nn-skill{display:flex;flex-direction:column;align-items:center;gap:10px;padding:6px 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84%,transparent)}.lb-nodestrip{display:flex;align-items:center;gap:10px;margin-top:14px;overflow-x:auto;scrollbar-width:none;padding:4px 2px}.lb-nodestrip::-webkit-scrollbar{display:none}.lb-nodestrip .lb-node{--lb-node-size: 36px}.lb-course-card__body{flex:1 1 auto;display:flex;flex-direction:column;padding:16px 18px 18px}.lb-course-card__blurb{margin-top:5px}.lb-course-card__foot{display:flex;align-items:flex-end;gap:14px;margin-top:auto;padding-top:16px}.lb-course-card__progress{flex:1 1 auto;min-width:0}.lb-course-card__progress .nn-bar{height:7px}.lb-course-card__fill{background:var(--nn-marigold)}.lb-course-card__count{margin-top:7px}.lb-course-card__foot .nn-btn{flex:0 0 auto}.lb-node{--lb-node-size: 40px;flex:0 0 auto;width:var(--lb-node-size);height:var(--lb-node-size);border:0;padding:0;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:var(--nn-track);color:var(--nn-ink-3);cursor:pointer;-webkit-tap-highlight-color:transparent}.lb-node svg{width:52%;height:52%;stroke:currentColor;fill:none;stroke-width:2.1;stroke-linecap:round;stroke-linejoin:round}.lb-node--lg{--lb-node-size: 72px}.lb-node--sm{--lb-node-size: 34px}.lb-node--done{background:var(--nn-marigold);color:var(--nn-navy)}.lb-node--done svg{stroke-width:2.8}.lb-node--current{background:var(--skill-deep);color:var(--nn-cream);box-shadow:0 0 0 4px var(--nn-page),0 0 0 7px var(--skill)}.lb-node--todo{opacity:.85}.lb-node:active{transform:scale(.96)}.lb-course-card__hero .lb-node{background:color-mix(in oklab,var(--nn-cream) 18%,transparent);color:color-mix(in oklab,var(--nn-cream) 86%,transparent)}.lb-course-card__hero .lb-node--done{background:var(--nn-marigold);color:var(--nn-navy)}.lb-course-card__hero .lb-node--current{background:var(--nn-cream);color:var(--skill-deep);box-shadow:0 0 0 3px color-mix(in oklab,var(--nn-cream) 45%,transparent)}.lb-fan{background:var(--skill-soft);height:118px;display:flex;align-items:flex-end;justify-content:center;gap:8px;padding-bottom:0}.lb-fan__cover{position:relative;width:60px;height:86px;border-radius:4px 8px 8px 4px;display:flex;align-items:center;justify-content:center;color:var(--nn-cream);box-shadow:inset 5px 0 color-mix(in oklab,var(--nn-cream) 25%,transparent);transform-origin:bottom center}.lb-fan__cover--a{background:var(--skill-deep)}.lb-fan__cover--b{background:var(--nn-navy-3);z-index:2}.lb-fan__cover--c{background:var(--skill)}.lb-fan__cover svg{width:30px;height:30px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.lb-fan__band{position:absolute;bottom:12px;padding:2px 6px;border-radius:5px;background:var(--nn-marigold);color:var(--nn-navy);font-size:10px;font-weight:700;font-style:normal;font-variant-numeric:tabular-nums}.lb-shelf-card__body{flex:1 1 auto;display:flex;flex-direction:column;align-items:flex-start;padding:16px 18px 18px}.lb-shelf-card__blurb{margin:4px 0 14px}.lb-shelf-card__body .nn-btn{margin-top:auto}.lb-shelf-card__eyebrow{color:var(--skill-ink)}.lb-course__head{display:flex;align-items:stretch;border-radius:var(--nn-radius);border:2px solid var(--nn-ink-line);overflow:hidden;background:var(--skill-deep);color:var(--nn-cream);box-shadow:var(--nn-drop)}.lb-course__headtext{flex:1 1 auto;min-width:0;padding:14px 16px 15px}.lb-course__eyebrow{color:color-mix(in oklab,var(--nn-cream) 84%,transparent)}.lb-course__tagline{margin-top:5px;font-family:var(--nn-font-display);font-weight:800;font-size:20px;line-height:1.15}.lb-course__progress{display:flex;align-items:center;gap:10px;margin-top:12px}.lb-course__progress .nn-bar{flex:1 1 auto;height:7px;background:color-mix(in oklab,var(--nn-cream) 26%,transparent)}.lb-course__fill{background:var(--nn-marigold)}.lb-course__count{flex:0 0 auto;font-size:12px;font-weight:700;font-variant-numeric:tabular-nums}.lb-course__list{flex:0 0 56px;border:0;border-left:1px solid color-mix(in oklab,var(--nn-cream) 28%,transparent);background:color-mix(in oklab,var(--nn-cream) 10%,transparent);color:var(--nn-cream);display:flex;align-items:center;justify-content:center;cursor:pointer;-webkit-tap-highlight-color:transparent}.lb-course__list svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round}.lb-path{position:relative;list-style:none;margin:30px 0 0;padding:0 0 10px}.lb-path:before{content:"";position:absolute;left:50%;top:24px;bottom:54px;border-left:3px dotted var(--nn-track)}.lb-path__step{position:relative;width:60%;display:flex;flex-direction:column;align-items:center;padding-bottom:34px}.lb-path__step--left{margin:0 auto 0 6%}.lb-path__step--right{margin:0 6% 0 auto}.lb-path__step--trophy{width:auto;margin:0 auto;padding-bottom:0;gap:10px}.lb-path__nodewrap{position:relative;display:flex;align-items:center;justify-content:center;width:100%}.lb-bubble{position:absolute;left:calc(50% + 46px);white-space:nowrap;padding:7px 14px;border:2px solid var(--skill);border-radius:999px;background:var(--nn-card-raised);color:var(--nn-ink);font:inherit;font-size:14px;font-weight:600;cursor:pointer;-webkit-tap-highlight-color:transparent}.lb-bubble:before{content:"";position:absolute;left:-7px;top:50%;width:10px;height:10px;transform:translateY(-50%) rotate(45deg);background:var(--nn-card-raised);border-left:2px solid var(--skill);border-bottom:2px solid var(--skill)}.lb-path__step--right .lb-bubble{left:auto;right:calc(50% + 46px)}.lb-path__step--right .lb-bubble:before{left:auto;right:-7px;border-left:0;border-bottom:0;border-right:2px solid var(--skill);border-top:2px solid var(--skill)}.lb-path__label{position:relative;z-index:1;background:var(--nn-page);border-radius:8px;margin-top:10px;padding:0;border:0;background:none;font:inherit;color:inherit;text-align:center;cursor:pointer;-webkit-tap-highlight-color:transparent}.lb-path__kicker{display:block;font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--nn-ink-3)}.lb-path__step:has(.lb-node--done) .lb-path__kicker{color:var(--nn-accent-ink)}.lb-path__step:has(.lb-node--current) .lb-path__kicker{color:var(--skill-ink)}.lb-path__title{display:block;margin-top:3px;font-family:var(--nn-font-display);font-weight:700;font-size:16px;line-height:1.25;color:var(--nn-ink)}.lb-path__step:has(.lb-node--todo) .lb-path__title{color:var(--nn-ink-3)}.lb-trophy{width:72px;height:72px;border-radius:20px;border:2px dashed var(--nn-card-line);background:var(--nn-card);color:var(--nn-ink-3);display:flex;align-items:center;justify-content:center}.lb-trophy svg{width:34px;height:34px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linejoin:round}.lb-trophy--won{border-style:solid;border-color:var(--nn-marigold);background:var(--nn-marigold);color:var(--nn-navy)}.lb-path__finish{font-size:13px;color:var(--nn-ink-3)}.lb-trophy--won+.lb-path__finish{color:var(--nn-ink);font-weight:600}.lb-sheetrow{display:flex;align-items:center;gap:12px;width:100%;padding:12px 14px;font:inherit;color:inherit;text-align:left;cursor:pointer;-webkit-tap-highlight-color:transparent}.lb-sheetrow__text{display:block;min-width:0}.lb-sheetrow__title{display:block;margin-top:2px;font-family:var(--nn-font-display);font-weight:700;font-size:15px;color:var(--nn-ink)}.lb-sheetrow__min{flex:0 0 auto;font-variant-numeric:tabular-nums}.lb-lesson{flex:0 0 auto;display:flex;flex-direction:column;min-height:100dvh;box-sizing:border-box;padding-top:var(--nn-inset-top);background:var(--nn-page);color:var(--nn-ink);-webkit-tap-highlight-color:transparent}.nn-main:has(>.lb-lesson){display:flex;flex-direction:column;padding:0}.nn-main:not(.nn-main--no-tabs)>.lb-lesson{min-height:100%}.lb-lesson__top{flex:0 0 auto;display:flex;flex-direction:column;gap:6px;padding:12px 12px 0}.lb-lesson__segs{display:flex;gap:5px;padding:0 4px}.lb-lesson__segs span{flex:1 1 0;height:4px;border-radius:2px;background:var(--nn-track);transition:background .22s ease}.lb-lesson__segs span.on{background:var(--skill)}.lb-lesson__toprow{display:flex;align-items:center;height:48px}.lb-lesson__side{width:56px;display:flex}.lb-lesson__side--end{justify-content:flex-end}.lb-lesson__count{flex:1 1 auto;text-align:center;font-size:14.5px;font-weight:600;color:var(--nn-ink-2)}.lb-lesson__icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;border:0;border-radius:12px;background:transparent;color:var(--nn-ink);cursor:pointer}.lb-lesson__icon svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:2.2;stroke-linecap:round}.lb-lesson__panel{flex:1 1 auto;padding:14px 20px 0}.lb-lesson__eyebrow{color:var(--skill-ink)}.lb-lesson__title{margin:6px 0 0;font-family:var(--nn-font-display);font-weight:800;font-size:27px;line-height:1.14;letter-spacing:-.015em;color:var(--nn-ink);text-wrap:balance}.lb-lesson__lede{margin:10px 0 0;font-size:15.5px;line-height:1.55;color:var(--nn-ink-2)}.lb-lesson__body{margin:14px 0 0;font-size:16.5px;line-height:1.65;color:var(--nn-ink-2)}.lb-bullets{margin:16px 0 0;padding:0;list-style:none}.lb-bullets 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th{background:var(--skill-soft);color:var(--nn-ink);font-family:var(--nn-font-display);font-weight:700}.lb-tip__mark{display:inline-flex;align-items:center;justify-content:center;width:50px;height:50px;border-radius:16px;background:var(--skill-soft);color:var(--skill-ink)}.lb-tip__mark svg{width:26px;height:26px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linejoin:round}.lb-tip__cta{margin-top:20px}.lb-quiz{margin-top:18px;display:flex;flex-direction:column;gap:10px}.lb-quiz__option{display:flex;align-items:center;gap:10px;width:100%;padding:14px 15px;border:1.5px solid var(--nn-card-line);border-radius:var(--nn-radius-sm);background:var(--nn-card);color:var(--nn-ink);font:inherit;font-size:15.5px;text-align:left;cursor:pointer;-webkit-tap-highlight-color:transparent}.lb-quiz__option[disabled]{cursor:default}.lb-quiz__text{flex:1 1 auto}.lb-quiz__option svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:2.6;stroke-linecap:round}.lb-quiz__option.is-right{border-color:var(--nn-done);background:color-mix(in oklab,var(--nn-done) 18%,var(--nn-card));color:var(--nn-ink)}.lb-quiz__option.is-wrong{border-color:var(--nn-red);background:color-mix(in oklab,var(--nn-red) 14%,var(--nn-card))}.lb-quiz__option.is-dim{opacity:.55}.lb-quiz__why{margin:14px 0 0;font-size:15px;line-height:1.55;color:var(--nn-ink-2)}.lb-quiz__why b{color:var(--nn-ink)}.lb-takeaway{margin-top:24px;padding:14px 16px;border-radius:var(--nn-radius-sm);background:var(--skill-soft)}.lb-takeaway__label{color:var(--skill-ink)}.lb-takeaway__text{margin:6px 0 0;font-size:15.5px;line-height:1.5;color:var(--nn-ink);font-weight:500}.lb-lesson__cta{flex:0 0 auto;padding:18px 20px calc(18px + var(--nn-inset-bottom))}.lb-lesson__error{margin:0 0 10px;font-size:14px;color:var(--nn-red)}.lb-slide-enter-active,.lb-slide-leave-active,.lb-slide-back-enter-active,.lb-slide-back-leave-active{transition:opacity .18s ease,transform .18s cubic-bezier(.2,.8,.2,1)}.lb-slide-enter-from{opacity:0;transform:translate(22px)}.lb-slide-leave-to,.lb-slide-back-enter-from{opacity:0;transform:translate(-22px)}.lb-slide-back-leave-to{opacity:0;transform:translate(22px)}@media(prefers-reduced-motion:reduce){.lb-slide-enter-active,.lb-slide-leave-active,.lb-slide-back-enter-active,.lb-slide-back-leave-active{transition:none}.lb-slide-enter-from,.lb-slide-leave-to,.lb-slide-back-enter-from,.lb-slide-back-leave-to{transform:none}.lb-lesson__segs span{transition:none}}.lb-row{margin-top:26px}.lb-row__head{display:flex;align-items:flex-start;gap:12px}.lb-row__icon{flex:0 0 auto;width:46px;height:46px;border-radius:14px;background:var(--skill-soft);color:var(--skill-ink);display:inline-flex;align-items:center;justify-content:center}.lb-row__icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.9}.lb-row__text{flex:1 1 auto;min-width:0}.lb-row__title{font-size:20px}.lb-row__sub{margin-top:2px}.lb-row__all{flex:0 0 auto;padding:2px 0 0;border:0;background:none;font:inherit;font-size:14px;font-weight:600;color:var(--skill-ink);cursor:pointer;-webkit-tap-highlight-color:transparent}.lb-covers{display:flex;gap:14px;margin:14px 0 0;padding:4px 0 6px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;-webkit-mask-image:linear-gradient(to right,#000 calc(100% - 28px),transparent);mask-image:linear-gradient(to right,#000 calc(100% - 28px),transparent)}.lb-covers::-webkit-scrollbar{display:none}.lb-coverbtn{flex:0 0 148px;width:148px;scroll-snap-align:start;display:block;padding:0;border:0;background:none;font:inherit;color:inherit;text-align:left;cursor:pointer;-webkit-tap-highlight-color:transparent}.lb-cover{position:relative;height:180px;border-radius:5px 12px 12px 5px;background:var(--lb-cover, var(--skill-deep));color:var(--nn-cream);box-shadow:inset 7px 0 color-mix(in oklab,var(--nn-cream) 22%,transparent),var(--nn-shadow);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;padding:30px 12px 18px;box-sizing:border-box}.lb-cover__kicker{position:absolute;top:12px;left:18px;right:10px;font-size:10.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:color-mix(in oklab,var(--nn-cream) 82%,transparent);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.lb-cover svg{width:52px;height:52px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}.lb-cover__rule{width:76px;height:2px;border-radius:1px;background:color-mix(in oklab,var(--nn-cream) 55%,transparent)}.lb-coverbtn__title{display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-top:10px;font-family:var(--nn-font-display);font-weight:700;font-size:14.5px;line-height:1.28;color:var(--nn-ink)}.lb-coverbtn__topic{display:block;margin-top:4px;font-size:12.5px;color:var(--nn-ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.lb-coverbtn__foot{display:flex;flex-wrap:wrap;align-items:center;gap:6px 8px;margin-top:8px}.lb-bandchip{flex:0 0 auto;white-space:nowrap;padding:3px 8px;border-radius:7px;background:var(--nn-marigold);color:var(--nn-navy);font-size:11.5px;font-weight:700;font-variant-numeric:tabular-nums}.lb-coverbtn__read{flex:0 0 auto;white-space:nowrap;font-size:12.5px;font-weight:600;color:var(--skill-ink)}@media(min-width:600px){.lb-shelf{display:grid;grid-template-columns:minmax(0,1fr) 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auto;border-radius:50%;overflow:hidden;display:flex;align-items:center;justify-content:center;background:var(--nn-marigold-soft);border:1px solid var(--nn-card-line);color:var(--nn-accent-ink);font-size:11px;font-weight:800}.nn-chat__avatar--lg{width:52px;height:52px}.nn-chat__avatar img{width:100%;height:100%;object-fit:contain}.nn-chat__avatar img.is-cover{object-fit:cover}.nn-chat__avatar svg{width:26px;height:26px}.nn-chat__list{flex:1 1 auto;display:flex;flex-direction:column;gap:13px;padding:16px 0 calc(58px + var(--nn-chat-keyboard, 0px))}.nn-chat__row{display:flex;align-items:flex-start;gap:10px;width:100%;min-width:0}.nn-chat__row.is-assistant,.nn-chat__row.is-admin{display:grid;grid-template-columns:42px minmax(0,1fr);gap:12px;align-items:start}.nn-chat__row.is-user{justify-content:flex-end}.nn-chat__row.is-system{justify-content:center}.nn-chat__stack{display:grid;gap:5px;width:100%;min-width:0;justify-items:start}.nn-chat__row.is-user 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svg{width:26px;height:26px;stroke:currentColor;fill:none;stroke-width:2}.sx-pf__part{flex:0 0 auto;padding:4px 9px;border-radius:8px;font-size:11px;font-weight:700;letter-spacing:.11em}.sx-pf__task{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px;font-weight:600;color:var(--nn-hero-ink-2)}.sx-pf__eyebrow{margin:0;font-size:11.5px;font-weight:700;letter-spacing:.1em;color:var(--nn-hero-ink-2)}.sx-pf .sx-pf__steps{margin:0;gap:6px}.sx-pf .sx-pf__steps i{height:6px;border-radius:3px;background:#f3ecdf2e}.sx-pf .sx-pf__steps i.on{background:var(--skill)}.sx-pf .sx-pf__title{margin:0;font-size:26px;line-height:1.12;color:var(--nn-hero-ink)}.sx-pf__body{flex:1 1 auto;display:none;flex-direction:column;align-items:center;gap:18px;padding:32px 20px 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var(--nn-card-line));border-radius:14px;background:var(--nn-card-raised);display:flex;flex-direction:column;gap:8px}.sp-note--spelling{--nt: var(--nt-spelling)}.sp-note--grammar{--nt: var(--nt-grammar)}.sp-note--coherence{--nt: var(--nt-coherence)}.sp-note--lexical{--nt: var(--nt-lexical)}.sp-note--task{--nt: var(--nt-task)}.sp-note--pronunciation{--nt: var(--nt-pronunciation)}.sp-note--multiple{--nt: var(--nt-multiple)}.sp-note__close{position:absolute;top:2px;right:2px;width:36px;height:36px;border:0;background:none;color:var(--nn-ink-3);display:flex;align-items:center;justify-content:center;cursor:pointer}.sp-note__close svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2}.sp-note__kind{align-self:flex-start;padding:3px 8px;border-radius:6px;background:var(--nn-track);color:var(--nt, var(--nn-ink-2));font-size:10.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase}.sp-note__body{font-size:14px;line-height:1.5;color:var(--nn-ink-2)}.sp-note__body b,.sp-note__body strong{color:var(--nn-ink)}.sp-note__chip{align-self:flex-start;display:inline-flex;align-items:center;gap:6px;min-height:38px;padding:8px 14px;border:0;border-radius:999px;background:var(--skill-soft);color:var(--skill-ink);font:inherit;font-size:13px;font-weight:600;line-height:1.25;text-align:left;cursor:pointer}.sp-note__chip svg{flex:0 0 16px;width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2}.sp-note__chip[disabled]{opacity:.5;pointer-events:none}.sp-note__error{margin:0;font-size:13px;color:var(--nn-red)}.sp-audio{display:flex;align-items:center;gap:12px;padding:8px 14px 8px 8px;border-radius:14px;background:var(--nn-card-raised)}.sp-audio__toggle{flex:0 0 40px;width:40px;height:40px;border:0;border-radius:50%;background:var(--skill-deep);color:var(--nn-cream);display:flex;align-items:center;justify-content:center;cursor:pointer;padding:0}.sp-audio__toggle svg{width:14px;height:14px;fill:currentColor;stroke:none}.sp-audio__wave{flex:1 1 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var(--nn-card-line)}.wr-prompt__image{display:block;max-width:100%;margin:12px 0 0;border-radius:var(--nn-radius-sm)}.wr-paper{background:var(--nn-cream-3);color:var(--nn-ink);padding:16px;border-radius:0 0 calc(var(--nn-radius) - 2px) calc(var(--nn-radius) - 2px)}:root[data-theme=dark] .wr-paper{background:var(--nn-card-raised)}@media(prefers-color-scheme:dark){:root:not([data-theme=light]) .wr-paper{background:var(--nn-card-raised)}}.wr-stats{margin:0 0 12px;padding-bottom:10px;border-bottom:1px solid var(--nn-card-line);font-size:12.5px;font-weight:600;letter-spacing:.02em;color:var(--nn-ink-3)}.rp-note-host{display:block;line-height:1.5}.rp-note-host .rp-note-pad{padding:10px 0 12px}.rp-waiting{text-align:center;padding:8px 16px 20px}.rp-waiting__title{font-family:var(--nn-font-display);font-weight:800;font-size:22px;color:var(--nn-ink)}.rp-waiting__sub{margin-top:8px;font-size:14px;line-height:1.5;color:var(--nn-ink-2)}.rp-skel__card{padding:16px}.rp-error{margin:10px 0 0;color:var(--nn-red)}.rp-actions{display:grid;gap:10px;margin:24px 0 8px}.rp-sheet__cta{margin-top:14px}.rp-sheet__link{margin-top:12px;padding:11px 13px;border-radius:var(--nn-radius-sm);border:1px solid var(--nn-card-line);background:var(--nn-card-raised);font-size:13px;word-break:break-all;color:var(--nn-ink-2)}.rp-page{--sq-spelling: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="4" height="3" viewBox="0 0 4 3"><path d="M0,3 L2,0 L4,3" fill="none" stroke="%23C8553D"/></svg>');--sq-grammar: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="4" height="3" viewBox="0 0 4 3"><path d="M0,3 L2,0 L4,3" fill="none" stroke="%233E7A45"/></svg>');--sq-coherence: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="4" height="3" viewBox="0 0 4 3"><path d="M0,3 L2,0 L4,3" fill="none" stroke="%234F7CB0"/></svg>');--sq-lexical: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="4" height="3" viewBox="0 0 4 3"><path d="M0,3 L2,0 L4,3" fill="none" stroke="%23A9650B"/></svg>');--sq-task: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="4" height="3" viewBox="0 0 4 3"><path d="M0,3 L2,0 L4,3" fill="none" stroke="%236E4C7A"/></svg>');--sq-pronunciation: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="4" height="3" viewBox="0 0 4 3"><path d="M0,3 L2,0 L4,3" fill="none" stroke="%23C8553D"/></svg>');--sq-multiple: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="4" height="3" viewBox="0 0 4 3"><path d="M0,3 L2,0 L4,3" fill="none" stroke="%235F6B7A"/></svg>');--nt-spelling: #C8553D;--nt-grammar: #3E7A45;--nt-coherence: #4F7CB0;--nt-lexical: #A9650B;--nt-task: #6E4C7A;--nt-pronunciation: #C8553D;--nt-multiple: #5F6B7A}:root[data-theme=dark] .rp-page{--sq-spelling: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="4" height="3" viewBox="0 0 4 3"><path d="M0,3 L2,0 L4,3" fill="none" stroke="%23E58A74"/></svg>');--sq-grammar: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="4" height="3" viewBox="0 0 4 3"><path d="M0,3 L2,0 L4,3" fill="none" stroke="%237FBD86"/></svg>');--sq-coherence: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="4" height="3" viewBox="0 0 4 3"><path d="M0,3 L2,0 L4,3" fill="none" stroke="%238FB3DE"/></svg>');--sq-lexical: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="4" height="3" viewBox="0 0 4 3"><path d="M0,3 L2,0 L4,3" fill="none" stroke="%23E8A53A"/></svg>');--sq-task: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="4" height="3" viewBox="0 0 4 3"><path d="M0,3 L2,0 L4,3" fill="none" stroke="%23B899C4"/></svg>');--sq-pronunciation: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="4" height="3" viewBox="0 0 4 3"><path d="M0,3 L2,0 L4,3" fill="none" stroke="%23E58A74"/></svg>');--sq-multiple: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="4" height="3" viewBox="0 0 4 3"><path d="M0,3 L2,0 L4,3" fill="none" stroke="%23A9B4C2"/></svg>');--nt-spelling: #E58A74;--nt-grammar: #7FBD86;--nt-coherence: #8FB3DE;--nt-lexical: #E8A53A;--nt-task: #B899C4;--nt-pronunciation: #E58A74;--nt-multiple: #A9B4C2}@media(prefers-color-scheme:dark){:root:not([data-theme=light]) .rp-page{--sq-spelling: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="4" height="3" viewBox="0 0 4 3"><path d="M0,3 L2,0 L4,3" fill="none" stroke="%23E58A74"/></svg>');--sq-grammar: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="4" height="3" viewBox="0 0 4 3"><path d="M0,3 L2,0 L4,3" fill="none" stroke="%237FBD86"/></svg>');--sq-coherence: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="4" height="3" viewBox="0 0 4 3"><path d="M0,3 L2,0 L4,3" fill="none" stroke="%238FB3DE"/></svg>');--sq-lexical: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="4" height="3" viewBox="0 0 4 3"><path d="M0,3 L2,0 L4,3" fill="none" stroke="%23E8A53A"/></svg>');--sq-task: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="4" height="3" viewBox="0 0 4 3"><path d="M0,3 L2,0 L4,3" fill="none" stroke="%23B899C4"/></svg>');--sq-pronunciation: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="4" height="3" viewBox="0 0 4 3"><path d="M0,3 L2,0 L4,3" fill="none" stroke="%23E58A74"/></svg>');--sq-multiple: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="4" height="3" viewBox="0 0 4 3"><path d="M0,3 L2,0 L4,3" fill="none" stroke="%23A9B4C2"/></svg>');--nt-spelling: #E58A74;--nt-grammar: #7FBD86;--nt-coherence: #8FB3DE;--nt-lexical: #E8A53A;--nt-task: #B899C4;--nt-pronunciation: #E58A74;--nt-multiple: #A9B4C2}}.rp-annotated{font-size:15.5px;line-height:1.75;color:var(--nn-ink)}.rp-annotated p{margin:0 0 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0;padding:var(--nn-main-pad-top) var(--nn-side) 12px;background:var(--nn-page);border-bottom:1px solid var(--nn-card-line);max-height:46vh;overflow-y:auto;overscroll-behavior:contain}.lc-pinned-row{display:flex;align-items:baseline;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-top:10px}.lc-progress{font-size:11px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--nn-ink-3)}.lc-instruction{margin:10px 0 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var(--nn-card-line);border-radius:12px;background:var(--nn-card-raised);padding:13px;font:inherit;color:var(--nn-ink);cursor:pointer;transition:border-color .14s ease,background .14s ease}.lc-para:active{background:var(--nn-track)}.lc-para[disabled]{cursor:default;opacity:1}.lc-para__id{flex:0 0 auto;width:26px;height:26px;display:flex;align-items:center;justify-content:center;border-radius:8px;font-family:var(--nn-font-display);font-size:13.5px;font-weight:800;color:var(--skill-ink);background:var(--skill-soft)}.lc-para__text{flex:1 1 auto;min-width:0;font-size:14.5px;line-height:1.6;overflow-wrap:break-word}.lc-para.is-selected{border-color:var(--skill);background:var(--skill-soft)}.lc-para.is-accepted{border-color:var(--nn-green);box-shadow:inset 2px 0 0 var(--nn-green)}.lc-para.is-wrong{border-color:var(--nn-red);box-shadow:inset 2px 0 0 var(--nn-red)}.lc-anchor{font-weight:800;color:var(--skill-ink)}.lc-evidence{background:var(--skill-soft);color:inherit;border-radius:4px;padding:0 2px;box-shadow:inset 0 -2px 0 var(--skill)}:root[data-theme=dark] .lc-evidence{background:color-mix(in srgb,var(--skill) 38%,transparent)}@media(prefers-color-scheme:dark){:root:not([data-theme=light]) .lc-evidence{background:color-mix(in srgb,var(--skill) 38%,transparent)}}.lc-actions{margin-top:18px}.lc-feedback{margin-bottom:12px}.lc-verdict{margin:0 0 6px;font-family:var(--nn-font-display);font-size:17px;font-weight:800}.lc-verdict.is-correct{color:var(--nn-green)}.lc-verdict.is-wrong{color:var(--nn-red)}.lc-note{margin:0;font-size:14px;line-height:1.5;color:var(--nn-ink-2)}.lc-note--quiet{margin-top:4px;font-size:13px;color:var(--nn-ink-3)}.lc-done-card{padding:26px 18px;text-align:center}.lc-score-icon{display:block;font-size:34px;line-height:1}.lc-score{margin:10px 0 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var(--nn-card-line);border-radius:12px;background:var(--nn-card-raised);text-align:left}.dd-missed-label{margin:0 0 8px;font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--skill-ink)}.dd-missed-list{margin:0;padding:0;list-style:none}.dd-missed-row{margin:0 0 8px;font-size:14px;line-height:1.45;color:var(--nn-ink-2)}.dd-missed-row:last-child{margin-bottom:0}.dd-missed-name{font-weight:700;color:var(--nn-ink)}.dd-missed-count{white-space:nowrap}.dd-card.dd-enter{animation:dd-fade-in .25s ease}@keyframes dd-fade-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@keyframes dd-feedback-in{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}@keyframes dd-ring{0%{opacity:.85;transform:scale(1)}to{opacity:0;transform:scale(1.35)}}@media(prefers-reduced-motion:reduce){.dd-card.dd-enter,.dd-feedback{animation:none}.dd-play.is-playing 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ease}.kp-progress-row{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:7px}.kp-progress-label{color:var(--nn-ink-2);font-size:13px;font-weight:600}.kp-section-chip{font-size:11px;font-weight:700;letter-spacing:.03em;color:var(--skill-ink);background:var(--skill-soft);padding:3px 9px;border-radius:999px;white-space:nowrap}.kp-card{padding:16px 14px 18px}.kp-player{margin-bottom:12px}.kp-play{width:100%;display:flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:12px 16px;border:none;border-radius:var(--nn-radius-sm);background:var(--skill-deep);color:var(--nn-cream);font-family:var(--nn-font-body);font-size:16px;font-weight:700;cursor:pointer}.kp-play:disabled{background:var(--nn-track);color:var(--nn-ink-2);cursor:default}.kp-play-icon{width:22px;height:22px;flex:0 0 auto}.kp-play-text{line-height:1.2}.kp-eq{animation:kp-eq 1s ease-in-out 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var(--nn-card-line)}.kp-line:first-child{border-top:none;padding-top:2px}.kp-line:before{content:counter(kp-line);position:absolute;left:0;top:8px;width:18px;height:18px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--skill-soft);color:var(--skill-ink);font-size:11px;font-weight:700}.kp-line:first-child:before{top:3px}.kp-prompt{margin:0 0 5px;color:var(--nn-ink);font-size:15px;line-height:1.4;font-weight:600}.kp-input{width:100%;box-sizing:border-box;min-height:44px;padding:9px 12px;border:1.5px solid var(--nn-card-line);border-radius:var(--nn-radius-sm);background:var(--nn-card-raised);color:var(--nn-ink);font-family:var(--nn-font-body);font-size:16px}.kp-input:focus{outline:none;border-color:var(--skill);box-shadow:0 0 0 3px color-mix(in srgb,var(--skill) 22%,transparent)}.kp-input:disabled{opacity:.75}.kp-limit-chip{display:inline-block;margin-top:4px;font-size:11px;font-weight:600;color:var(--nn-ink-2);background:var(--nn-track);padding:3px 8px;border-radius:999px}.kp-submit{margin-top:12px}.kp-feedback{--kp-kept: var(--nn-green);--kp-late: var(--nn-marigold-deep);--kp-missed: var(--nn-red);margin-top:16px}:root[data-theme=dark] .kp-feedback{--kp-kept: #7FBE86;--kp-late: var(--nn-marigold);--kp-missed: #E58A74}@media(prefers-color-scheme:dark){:root:not([data-theme=light]) .kp-feedback{--kp-kept: #7FBE86;--kp-late: var(--nn-marigold);--kp-missed: #E58A74}}.kp-headline{margin:0 0 12px;padding:10px 12px;border-radius:var(--nn-radius-sm);background:var(--skill-soft);color:var(--skill-ink);font-size:15px;font-weight:700;line-height:1.4}.kp-headline.is-clean{background:color-mix(in srgb,var(--kp-kept) 16%,transparent);color:var(--kp-kept)}.kp-marks{margin:0;padding:0;list-style:none}.kp-mark{padding:10px 0 10px 12px;border-left:3px solid 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8px;font-family:var(--nn-font-display);font-size:19px;font-weight:800;line-height:1.3;color:var(--nn-ink)}.kp-done-detail{margin:0 0 18px;color:var(--nn-ink-2);font-size:14px;line-height:1.45}.kp-error-text{margin:0 0 18px;color:var(--nn-ink);font-size:15px;line-height:1.45}.kp-cta+.kp-cta{margin-top:10px}.lp-intro-card{position:relative;overflow:hidden;padding:20px 16px 22px}.lp-intro-card:before{content:"";position:absolute;inset:0;background:radial-gradient(120% 60% at 12% -10%,var(--skill-soft),transparent 60%);pointer-events:none}.lp-intro-card>*{position:relative;z-index:1}.lp-intro-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}.lp-badge{flex:0 0 auto;width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:14px;color:var(--nn-cream);background:var(--skill);box-shadow:0 3px 10px color-mix(in srgb,var(--skill) 30%,transparent)}.lp-badge svg{width:24px;height:24px;display:block}.lp-intro-meta{display:flex;flex-direction:column;gap:8px;min-width:0}.lp-chip{display:inline-block;align-self:flex-start;font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--skill-ink);background:var(--skill-soft);padding:4px 10px;border-radius:999px}.lp-headline{margin:0 0 12px;font-family:var(--nn-font-display);font-size:20px;font-weight:800;letter-spacing:-.01em;color:var(--nn-ink)}.lp-benefit{display:flex;align-items:flex-start;gap:10px;margin-bottom:16px}.lp-benefit-icon{flex:0 0 auto;font-size:18px;line-height:1.4}.lp-benefit-text{margin:0;color:var(--nn-ink-2);font-size:15px;line-height:1.45}.lp-lesson{border:1px solid var(--nn-card-line);border-radius:14px;background:var(--nn-card-raised);padding:14px 16px}.lp-lesson-name{margin:0 0 10px;font-family:var(--nn-font-display);font-size:17px;font-weight:800;color:var(--nn-ink)}.lp-lesson-part{margin-bottom:12px}.lp-lesson-part:last-child{margin-bottom:0}.lp-lesson-part-label{margin:0 0 3px;font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--skill-ink)}.lp-lesson-part-text{margin:0;font-size:15px;line-height:1.5;color:var(--nn-ink)}.lp-start{margin-top:16px}.lp-start:after{content:" →"}.lp-start:disabled:after{content:"…"}.lp-start-note{margin:8px 0 0;text-align:center;font-size:12px;line-height:1.45;color:var(--nn-ink-2)}.lp-progress{margin-bottom:12px}.lp-progress-row{display:flex;flex-direction:column;align-items:flex-start;gap:5px;margin-top:6px}.lp-progress-label{flex:0 0 auto;font-size:13px;font-weight:600;color:var(--nn-ink-2)}.lp-lesson-chip{flex:0 1 auto;min-width:0;font-size:12px;font-weight:600;line-height:1.3;color:var(--skill-ink);background:var(--skill-soft);padding:4px 10px;border-radius:999px}.lp-card{padding:14px;border-radius:var(--nn-radius-sm)}.lp-player{display:flex;flex-direction:column;align-items:center;gap:6px;padding-bottom:14px;margin-bottom:14px;border-bottom:1px solid var(--nn-card-line)}.lp-play{position:relative;flex:0 0 auto;width:68px;height:68px;display:flex;align-items:center;justify-content:center;border:none;border-radius:50%;padding:0;cursor:pointer;color:var(--nn-cream);background:var(--skill);box-shadow:0 6px 18px color-mix(in srgb,var(--skill) 30%,transparent);transition:transform .1s ease,box-shadow .15s ease}.lp-play:active{transform:scale(.96)}.lp-play-icon{position:relative;z-index:1;display:none;width:30px;height:30px}.lp-play[data-icon=play] .lp-icon-play,.lp-play[data-icon=playing] .lp-icon-playing,.lp-play[data-icon=replay] .lp-icon-replay{display:block}.lp-eq{transform-box:fill-box;transform-origin:center;animation:lp-eq .9s ease-in-out infinite}.lp-eq-2{animation-delay:-.3s}.lp-eq-3{animation-delay:-.6s}@keyframes lp-eq{0%,to{transform:scaleY(.55)}50%{transform:scaleY(1)}}.lp-play-ring{position:absolute;inset:0;border-radius:50%;border:2px solid var(--skill);opacity:0;pointer-events:none}.lp-play.is-playing .lp-play-ring{animation:lp-ring 1.1s ease-out infinite}.lp-play-label{margin:0;font-size:13px;font-weight:600;color:var(--nn-ink-2)}.lp-audio-error{margin:0;text-align:center;font-size:13px;line-height:1.4;color:var(--nn-red)}.lp-instruction{margin:0 0 5px;font-size:13px;font-weight:600;color:var(--nn-ink-2)}.lp-prompt{font-size:17px;line-height:1.4;font-weight:700;color:var(--nn-ink);margin:0 0 10px}.lp-listen-first{margin:10px 0 0;text-align:center;font-size:13px;line-height:1.45;color:var(--nn-ink-2)}.lp-options{display:flex;flex-direction:column;gap:8px}.lp-option{display:flex;align-items:flex-start;gap:10px;width:100%;box-sizing:border-box;padding:12px 14px;border:2px solid var(--nn-card-line);border-radius:12px;background:var(--nn-card-raised);cursor:pointer;text-align:left;font-family:var(--nn-font-body)}.lp-option[disabled]{cursor:default}.lp-option[aria-checked=true]{border-color:var(--skill)}.lp-option-letter{flex:0 0 auto;width:24px;height:24px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--nn-track);font-size:12px;font-weight:800;color:var(--nn-ink-2)}.lp-option-text{flex:1 1 auto;min-width:0;font-size:15px;line-height:1.4;color:var(--nn-ink)}.lp-option.is-correct{border-color:var(--nn-green);background:color-mix(in srgb,var(--nn-green) 10%,transparent)}.lp-option.is-correct .lp-option-letter{background:var(--nn-green);color:#fff}.lp-option.is-wrong{border-color:var(--nn-red);background:color-mix(in srgb,var(--nn-red) 10%,transparent)}.lp-option.is-wrong .lp-option-letter{background:var(--nn-red);color:#fff}.lp-feedback{margin-top:14px;padding:14px;border-radius:12px;background:var(--skill-soft);animation:lp-feedback-in .25s ease}.lp-verdict{display:flex;align-items:center;gap:8px;margin:0 0 10px;font-weight:700;font-size:16px;line-height:1.35}.lp-verdict:before{display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;width:20px;height:20px;border-radius:50%;font-size:11px;color:#fff}.lp-verdict.is-correct{color:var(--nn-green)}.lp-verdict.is-correct:before{content:"✓";background:var(--nn-green)}.lp-verdict.is-wrong{color:var(--nn-red)}.lp-verdict.is-wrong:before{content:"✕";background:var(--nn-red)}.lp-answers{margin-bottom:12px}.lp-answer-line{margin:0 0 5px;font-size:16px;line-height:1.45;color:var(--nn-ink)}.lp-answer-label{margin-right:6px;font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--nn-ink-2)}.lp-answer-text{font-weight:700}.lp-answer-line.is-right 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var(--nn-card-line);border-radius:0;background:transparent;color:var(--skill-ink);font-family:var(--nn-font-body);font-size:16px;line-height:1.4}.omp-plan-note::placeholder{color:var(--nn-ink-3)}.omp-plan-note:focus-visible{outline:none;border-bottom:2px solid var(--skill)}.omp-target{margin:0;padding:10px 14px;border-radius:var(--nn-radius-sm);background:var(--skill-soft);color:var(--skill-ink);font-family:var(--nn-font-body);font-size:14px;font-weight:600;line-height:1.45}.omp-waiting{margin:0;font-family:var(--nn-font-body);font-size:15px;line-height:1.55;color:var(--nn-ink-2);text-align:center}.omp-clock{display:flex;align-items:baseline;justify-content:center;gap:8px}.omp-clock-dot{width:10px;height:10px;border-radius:50%;background:var(--nn-red);align-self:center;animation:dr-pulse 1s ease-in-out infinite}.omp-clock--checking .omp-clock-dot{background:var(--nn-ink-3);animation:none}@media(prefers-reduced-motion:reduce){.omp-clock-dot{animation:none}}.omp-clock-now{font-family:var(--nn-font-body);font-size:34px;font-weight:700;color:var(--nn-ink);font-variant-numeric:tabular-nums;line-height:1}.omp-clock-cap{font-family:var(--nn-font-body);font-size:14px;color:var(--nn-ink-3);font-variant-numeric:tabular-nums}.omp-finish[disabled]{opacity:.45}.omp-finish-hint{margin:0;font-family:var(--nn-font-body);font-size:12px;line-height:1.5;color:var(--nn-ink-3);text-align:center}.omp-verdict{padding:18px 16px}.omp-verdict.omp-verdict--pass{border-color:var(--nn-green)}.omp-verdict.omp-verdict--work{border-color:var(--nn-marigold-deep)}.omp-verdict-code{margin:0;font-family:var(--nn-font-display);font-size:20px;line-height:1.3;color:var(--nn-ink)}.omp-spoke{margin:16px 0 8px;font-family:var(--nn-font-body);font-size:15px;font-weight:700;color:var(--nn-ink);font-variant-numeric:tabular-nums}.omp-bar{position:relative;height:10px;border-radius:999px;background:var(--nn-track);margin-bottom:26px}.omp-bar-fill{height:100%;border-radius:999px;background:var(--nn-green)}.omp-bar-fill--short{background:var(--nn-marigold-deep)}.omp-bar-mark{position:absolute;top:-3px;bottom:-3px;width:2px;background:var(--nn-ink)}.omp-bar-mark-label{position:absolute;top:16px;left:50%;transform:translate(-50%);white-space:nowrap;font-family:var(--nn-font-body);font-size:11px;font-weight:700;color:var(--nn-ink-2);font-variant-numeric:tabular-nums}.omp-compare{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:0;padding-top:12px;border-top:1px solid var(--nn-card-line);font-family:var(--nn-font-body);font-size:13px;line-height:1.45;color:var(--nn-ink-2);font-variant-numeric:tabular-nums}.omp-delta{flex:none;padding:2px 8px;border-radius:999px;font-size:12px;font-weight:700}.omp-delta--up{background:color-mix(in srgb,var(--nn-green) 16%,transparent);color:var(--nn-green)}.omp-delta--down{background:var(--nn-marigold-soft);color:var(--nn-marigold-deep)}.omp-map{padding:16px}.tm{margin-top:10px}.tm-row-head{display:flex;align-items:baseline;gap:8px}.tm-row-name{flex:1;min-width:0;font-family:var(--nn-font-body);font-size:14px;line-height:1.4;color:var(--nn-ink)}.tm-row-time{flex:none;font-family:var(--nn-font-body);font-size:13px;font-weight:700;color:var(--nn-ink);font-variant-numeric:tabular-nums}.tm-lane{position:relative;height:8px;margin-top:6px;border-radius:999px;background:linear-gradient(to right,var(--nn-track) var(--tm-end, 100%),transparent var(--tm-end, 100%));box-shadow:inset 0 0 0 1px var(--nn-card-line)}.tm-lane--whole{height:14px;border-radius:4px}.tm-mark{position:absolute;top:0;bottom:0;border-radius:2px;background:var(--skill)}.tm-mark--other{background:var(--nn-ink-3);opacity:.55}.tm-end{position:absolute;top:-4px;bottom:-4px;width:2px;margin-left:-1px;background:var(--nn-ink)}.tm-axis{display:flex;justify-content:space-between;margin-top:4px;font-family:var(--nn-font-body);font-size:11px;color:var(--nn-ink-3);font-variant-numeric:tabular-nums}.tm-unplaced{margin:12px 0 0;font-family:var(--nn-font-body);font-size:13px;line-height:1.5;color:var(--nn-ink-2)}.tm-bullets{list-style:none;margin:14px 0 0;padding:0}.tm-bullet{padding:10px 0;border-top:1px solid var(--nn-card-line)}.tm-tick{flex:none;width:16px;font-family:var(--nn-font-body);font-size:14px;font-weight:700;color:var(--nn-green)}.tm-bullet--missed .tm-tick{color:var(--nn-red)}.tm-bullet--missed .tm-row-name,.tm-bullet--missed .tm-row-time{color:var(--nn-ink-2)}.tm-bullet--missed .tm-row-time{font-weight:600}.tm-bullet--focus .tm-row-time{color:var(--skill-ink)}.tm-bullet--focus .tm-lane{box-shadow:inset 0 0 0 1px var(--skill)}.tm-bullet .tm-lane,.tm-note{margin-left:24px}.tm-note{margin-top:6px;margin-bottom:0;font-family:var(--nn-font-body);font-size:13px;line-height:1.45;color:var(--nn-ink-2)}.tm-note-label{font-weight:700;color:var(--nn-ink-3)}.omp-coach{padding:16px;border-left:3px solid var(--skill)}.omp-coach-text{margin:6px 0 0;font-family:var(--nn-font-body);font-size:15px;line-height:1.55;color:var(--nn-ink)}.omp-transcript{padding:14px 16px}.omp-transcript-summary{cursor:pointer;list-style-position:inside}.omp-transcript-text{margin:6px 0 0;font-family:var(--nn-font-body);font-size:14px;line-height:1.65;color:var(--nn-ink-2)}.omp-cta{margin-top:2px}