:root{--ls-ink:#172c3b;--ls-blue:#0e4154;--ls-teal:#087d7a;--ls-teal-dark:#075b5c;--ls-paper:#fbf6ec;--ls-paper-deep:#f3e8d5;--ls-coral:#d67050;--ls-line:#d8cdbb;--ls-shadow:0 22px 55px rgba(22, 44, 59, 0.12)}.ls-package-bar{display:grid;gap:1rem;padding:clamp(18px,3vw,28px);margin-block:1.5rem;border:1px solid var(--ls-line);border-radius:18px;background:var(--ls-paper)}.ls-package-bar h2,.ls-package-bar h3{margin:0 0 .6rem}.ls-package-bar input[type=file]{display:block;max-width:100%;margin-top:.5rem;font:inherit}.ls-package-bar label[for=ls-package-file]{display:block;width:fit-content;max-width:100%}.ls-package-supports{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:.8rem;margin-bottom:1rem}.ls-package-dialog fieldset{border:1px solid var(--ls-line);border-radius:12px;padding:1rem}.ls-package-dialog>fieldset,.ls-package-dialog>p{margin:1rem 1.5rem}.ls-package-preview{padding:0 1.5rem 1rem}.ls-package-dialog .ls-icon-button{flex-shrink:0}.ls-package-dialog 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#ffffff36;border-radius:999px;color:#e3f4ef;font-size:.78rem;font-weight:750}.ls-hero-card{padding:26px;border:1px solid #a8e2d27a;border-radius:2px 34px 2px 34px;background:#143f4fcc;box-shadow:12px 14px 0 #e5a65d}.ls-card-kicker{margin:0;color:#a8e2d2;font-size:.7rem;font-weight:900;letter-spacing:.16em}.ls-hero-card h2{margin:13px 0 19px;font-family:Georgia,serif;font-size:2rem;font-weight:400}.ls-hero-card ol{padding:0;margin:0;list-style:none}.ls-hero-card li{display:flex;gap:13px;align-items:center;padding:11px 0;border-top:1px solid #ffffff2e}.ls-hero-card b{color:#f3bd6f;font-size:.75rem}.ls-hero-card p:last-child{margin:18px 0 0;color:#bdd7d5;font-size:.86rem;line-height:1.5}.ls-shell{width:min(1180px,calc(100% - 36px));margin:-1px auto 0;padding:clamp(30px,6vw,80px) 0}.ls-composer{padding:clamp(23px,4vw,46px);border:1px solid var(--ls-line);border-radius:2px 42px 2px 42px;background:#fffdf8;box-shadow:var(--ls-shadow)}.ls-section-heading{max-width:630px}.ls-dialog h2,.ls-library h2,.ls-section-heading h2,.ls-workspace h2{margin:0;font-family:Georgia,serif;font-size:clamp(2rem, 4vw, 3.35rem);font-weight:400;letter-spacing:-.04em;line-height:1}.ls-section-heading>p:last-child{color:#526470;line-height:1.6}.ls-form-grid{display:grid;grid-template-columns:0.5fr 1.25fr 0.6fr;gap:16px;margin-top:29px}.lesson-studio label>span,.ls-printbar label span{display:block;margin:0 0 7px;font-size:.79rem;font-weight:850}.lesson-studio input,.lesson-studio select,.lesson-studio textarea{width:100%;border:1px solid #bac3bc;border-radius:10px;padding:12px 13px;color:var(--ls-ink);background:#fff;font:inherit}.lesson-studio input,.lesson-studio select{min-height:48px}.lesson-studio textarea{min-height:132px;resize:vertical;line-height:1.6}.lesson-studio a:focus-visible,.lesson-studio button:focus-visible,.lesson-studio input:focus,.lesson-studio select:focus,.lesson-studio textarea:focus{outline:3px solid 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#8fc6bd;color:#526470;font-size:.84rem}.ls-timeline-item::before{position:absolute;top:-7px;left:13px;width:11px;height:11px;border-radius:50%;background:var(--ls-teal);content:''}.ls-stages{display:grid;gap:18px}.ls-stage{position:relative;padding:clamp(20px,3vw,31px);border:1px solid var(--ls-line);border-radius:2px 25px 2px 25px;background:#fffdf9;box-shadow:0 10px 25px #1938470b}.ls-stage-heading{display:grid;grid-template-columns:auto 1fr auto;gap:15px;align-items:center}.ls-step-number{display:grid;width:40px;height:40px;place-items:center;border-radius:50%;color:#fff;background:var(--ls-teal);font-weight:900}.ls-stage-duration{padding:7px 9px;border-radius:999px;color:#075b5c;background:#d9f0e9;font-size:.77rem;font-weight:850}.ls-stage h3{margin:0;font-family:Georgia,serif;font-size:1.55rem;font-weight:400}.ls-stage>p{margin:17px 0;line-height:1.65;white-space:pre-line}.ls-stage details{margin-top:15px;padding:12px 14px;border-radius:10px;background:#f4f8f5}.ls-stage 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.ls-dialog-actions,#ls-print-dialog .ls-dialog-head{display:none!important}#ls-print-content{max-height:none;overflow:visible;padding:0}.ls-sheet{border:0;box-shadow:none}.ls-sheet-answer,.ls-sheet-exercise{break-inside:avoid}.ls-sheet-lines{background:repeating-linear-gradient(to bottom,transparent 0,transparent 31px,#9ab0ad 32px)!important}}.lesson-studio,.ls-dialog{--ls-ink:#172c3b;--ls-blue:#0e4154;--ls-teal:#087d7a;--ls-teal-dark:#075b5c;--ls-paper:#fbf6ec;--ls-paper-deep:#f3e8d5;--ls-coral:#d67050;--ls-line:#d8cdbb;--ls-shadow:0 22px 55px rgba(22, 44, 59, 0.12)}.ls-reference a,.ls-sheet-reference a{display:block;overflow-wrap:anywhere;word-break:break-word}.ls-stage-heading{min-width:0}.ls-stage-heading h3{min-width:0}.ls-sheet-lines{height:80px}.ls-project-dialog:fullscreen{width:100%;max-width:none;max-height:none;height:100%;border-radius:0}[data-theme=dark] .lesson-studio,[data-theme=dark] 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2.2rem);line-height:1.15}.ls-project-board{font-size:clamp(1.7rem, 3.4vw, 3.2rem);font-weight:700;line-height:1.4}.ls-sheet .ls-adaptation{color:#192d39;background:#fff;border:0;padding:0}.ls-sheet .ls-adaptation>h3{margin:5mm 0 2mm;font-size:13pt;line-height:1.2;break-after:avoid;page-break-after:avoid}.ls-sheet .ls-adaptation li{break-inside:avoid;page-break-inside:avoid}.ls-dialog:focus-visible{outline:3px solid #e0ad56}.ls-choice-reference{margin:1rem 0;color:var(--ls-blue);font-size:.88rem;line-height:1.55}.ls-choice-reference summary{cursor:pointer;font-weight:700;min-height:44px;padding:10px 0}.ls-choice-reference a,.ls-choice-reference small{display:block;overflow-wrap:anywhere}.ls-choice-reference details[open]{padding:12px 18px;background:var(--ls-paper);border-radius:12px}.ls-choice-reference 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*{color:#000!important}}.ls-anonymous-note{flex-basis:100%;margin:0;color:var(--ls-ink);font-size:.87rem;line-height:1.5}.ls-token-model{margin-top:1.2rem;font-size:1rem}.ls-token-model small{display:block;margin-bottom:.6rem;font-size:.8rem;font-weight:500}.ls-token-dots{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;min-height:36px}.ls-token{display:block;width:30px;height:30px;border-radius:50%;background:#efbd68;border:2px solid #fff3cd;box-shadow:inset -3px -4px 0 #a5702d,0 3px 0 #061d29}.ls-token-groups{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:18px}.ls-token-group{border:3px solid #a8e2d2;border-radius:20px;min-width:0;padding:20px;min-height:116px;background:#124654}.ls-token-group:nth-child(2){border-color:#f4d39a;background:#3d4240}.ls-token-circle{border-radius:50%}.ls-token-reserve small{color:#f6e3b2}.ls-token-reserve .ls-token-dots{max-width:320px;margin:auto}.ls-dialog{position:fixed;inset:0;margin:auto;max-height:calc(100dvh - 32px);overflow:auto}.ls-dialog,.ls-dialog *{box-sizing:border-box}.ls-project-dialog[open]{display:flex;flex-direction:column;height:min(880px,calc(100dvh - 32px))}.ls-project-actions,.ls-project-top{flex-shrink:0}.ls-project-stage{flex:1;min-height:0;overflow:auto;display:block;padding:clamp(20px,4vw,48px)}.ls-project-stage h2{margin:12px auto 0;color:#f5f7ed}.ls-project-board{font-size:clamp(1.6rem, 3vw, 2.6rem)}.ls-project-dialog:fullscreen{width:100vw;height:100dvh;max-width:none;max-height:none;border-radius:0}.ls-project-top{align-items:center;gap:12px;padding:16px 24px}.ls-project-top>p{flex:1;font-size:.9rem}.ls-project-top .ls-icon-button{flex-shrink:0}.ls-project-nav{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));flex-shrink:0;gap:6px;padding:12px 20px;border-bottom:1px solid #ffffff29;background:#062632}.ls-project-step{display:grid;gap:3px;min-height:72px;min-width:0;padding:8px 4px;border:1px solid transparent;border-radius:9px;background:0 0;color:#d6e7e4;font:inherit;font-size:.82rem;line-height:1.3;cursor:pointer;overflow-wrap:anywhere}.ls-project-step small,.ls-project-step-number{color:#a5c9c3;font-size:.75rem}.ls-project-step:hover{background:#ffffff12}.ls-project-step[aria-current=step]{border-color:#b0e2d3;background:#b0e2d3;color:#123e40;font-weight:800}.ls-project-step[aria-current=step] small,.ls-project-step[aria-current=step] span{color:#123e40}.ls-project-dialog button:focus-visible{outline:3px solid #f8db9a;outline-offset:3px}.ls-project-pause-screen{flex:1;min-height:0;overflow:auto;padding:clamp(24px,6vw,72px);text-align:center;background:radial-gradient(ellipse at 50% 30%,#164957,#082c3a 70%)}.ls-project-pause-mark{display:grid;place-items:center;width:72px;height:72px;margin:0 auto 24px;border:1px solid #83baaf;border-radius:50%;color:#b0e2d3;font-size:2rem}.ls-project-pause-screen h2{margin:16px 0;color:#f5f7ed;font:400 clamp(2.5rem, 6vw, 5rem)/1.1 Georgia,serif}.ls-project-pause-screen>p:not(.ls-project-eyebrow){font-size:1.2rem;color:#d6e7e4}.ls-project-pause-screen small{display:block;margin-top:32px;color:#b1dad5;line-height:1.6}.ls-project-dialog [hidden]{display:none!important}@media (max-width:640px){.ls-project-top{flex-wrap:wrap;gap:8px;padding:10px 12px}.ls-project-top>p{flex-basis:calc(100% - 60px)}#ls-project-close{order:1}#ls-project-pause{order:2;width:100%;min-height:44px;padding:8px}.ls-project-nav{grid-template-columns:repeat(3,minmax(0,1fr));padding:8px;gap:4px}.ls-project-step{min-height:48px;padding:4px 2px;font-size:.875rem}.ls-project-step-number{display:none}.ls-project-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));padding:10px;gap:6px}.ls-project-actions .ls-button{padding:8px 4px;min-height:44px;font-size:.8rem}#ls-project-reveal{grid-column:1/-1;grid-row:2}#ls-project-fullscreen{grid-column:1/-1}}@media (max-width:400px){.ls-project-nav{grid-template-columns:repeat(2,minmax(0,1fr))}.ls-project-step{white-space:nowrap;overflow-wrap:normal}}@media (max-height:600px){.ls-project-nav{display:flex;overflow-x:auto;padding:6px}.ls-project-step{flex:0 0 108px;min-height:44px;padding:4px}.ls-project-step-number{display:none}}@media (max-height:600px) and (min-width:450px){.ls-project-top{flex-wrap:nowrap;padding:8px 12px}.ls-project-top>p{flex-basis:auto}#ls-project-pause{order:0;width:auto}.ls-project-actions{display:flex;padding:8px}.ls-project-actions .ls-button{min-height:44px;padding:8px;font-size:.8rem}}@media print{#ls-print-dialog{position:static;margin:0;width:100%;max-width:none;max-height:none;overflow:visible}#ls-print-content .ls-sheet{max-width:none;padding:0;font-size:11pt;line-height:1.45}#ls-print-content .ls-sheet-head{margin-bottom:4mm;padding-bottom:3mm}#ls-print-content .ls-sheet h1{font-size:22pt;line-height:1.1}#ls-print-content .ls-sheet .ls-adaptation>h3,#ls-print-content .ls-sheet h2{font-size:13pt;line-height:1.2;margin:5mm 0 2mm;break-after:avoid;page-break-after:avoid}#ls-print-content .ls-sheet .ls-adaptation li{break-inside:avoid;page-break-inside:avoid}#ls-print-content .ls-sheet p{margin:2mm 0}#ls-print-content .ls-sheet-reference{font-size:8pt;overflow-wrap:anywhere;white-space:pre-line}#ls-print-content a::after{content:none!important}#ls-print-content .ls-sheet-exercise{margin:4mm 0;font-size:11pt;line-height:1.5}#ls-print-content .ls-sheet-lines{height:15mm}}.ls-workspace{padding:0}#ls-print-content .ls-sheet-exercise{padding:0}.ls-hero-start{margin-top:24px;background:#b0e2d3;color:#0b3544;border-color:#b0e2d3}.ls-hero-start:hover{background:#d5f1e7;color:#082c3a}@media print{#ls-print-dialog::backdrop{background:0 0!important;backdrop-filter:none!important}#ls-print-dialog{border-radius:0;box-shadow:none}#ls-print-content{width:100%}#ls-print-content .ls-sheet-reference{word-break:break-word}}@media print{#ls-print-content .ls-sheet>.ls-sheet-reference:last-child{break-before:avoid;break-inside:avoid}#ls-print-content .ls-sheet[data-support=learner]>.ls-sheet-exercise:has(+ .ls-sheet-reference:last-child){break-after:avoid}}.ls-edition{margin:1rem 0;padding:1.25rem;border:1px solid #b79250;border-radius:16px;background:#fff6de;color:#49381d}.ls-edition[hidden]{display:none}.ls-edition p{margin:0 0 1rem}.ls-update-change{padding:.85rem 0;border-bottom:1px solid #ccd5d8}.ls-update-change summary{font-weight:700;cursor:pointer}.ls-update-change strong{display:block;margin-top:1rem}.ls-update-change p{white-space:pre-line}.ls-update-keep{display:flex;align-items:center;gap:.75rem;margin-top:1.5rem}.ls-update-keep input{width:20px;height:20px}.ls-material-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:5mm;margin-bottom:5mm}.ls-material-card{display:grid;place-items:center;min-height:22mm;padding:4mm;border:1px dashed #50616b;font-size:18pt;text-align:center;break-inside:avoid}@media print{.ls-material-cards{grid-template-columns:repeat(2,minmax(0,1fr))}}.ls-sheet-boxes.ls-shape-boxes{grid-template-columns:repeat(6,minmax(0,1fr))}.ls-shape-boxes .ls-sheet-box{min-height:15mm}.ls-sheet-document{white-space:pre-line;border-left:2px solid #52645b;padding-left:4mm}#ls-print-content .ls-sheet-drawing{height:85mm;border:1px solid #777;margin-top:4mm}.ls-printbar label{min-width:155px}.ls-print-notice{margin:12px 28px;font-size:.9rem;line-height:1.5}#ls-print-content .ls-sheet+.ls-sheet{margin-top:28px}#ls-print-content.ls-print-large .ls-sheet,#ls-print-content.ls-print-large .ls-sheet-exercise{font-size:16pt;line-height:1.6}#ls-print-content.ls-print-large .ls-sheet h1{font-size:28pt}#ls-print-content.ls-print-large .ls-sheet .ls-adaptation>h3,#ls-print-content.ls-print-large .ls-sheet h2{font-size:19pt}#ls-print-content.ls-print-large .ls-sheet-box,#ls-print-content.ls-print-large .ls-sheet-reference{font-size:12pt}#ls-print-content.ls-print-ink .ls-sheet,#ls-print-content.ls-print-ink .ls-sheet *{color:#000!important;background-color:#fff!important;box-shadow:none}#ls-print-content.ls-print-ink .ls-sheet-lines{background-image:none;border-bottom:1px solid #777}#ls-print-content.ls-print-roomy .ls-sheet-lines{height:30mm}#ls-print-content .ls-sheet-lines-long,#ls-print-content.ls-print-roomy .ls-sheet-lines-long{height:45mm}#ls-print-content.ls-print-roomy .ls-sheet-boxes:not(.ls-shape-boxes) .ls-sheet-box{height:40mm}@media print{#ls-print-dialog .ls-print-notice{display:none!important}#ls-print-content .ls-sheet+.ls-sheet{break-before:page;page-break-before:always;margin-top:0}#ls-print-content h1,#ls-print-content h2{break-after:avoid}}@media (max-width:600px){#ls-print-dialog .ls-dialog-actions{flex-wrap:wrap;padding:12px;position:sticky;bottom:0;background:var(--surface,#fff)}#ls-print-content{max-height:40vh}#ls-print-dialog .ls-dialog-head{padding:16px 20px}#ls-print-dialog .ls-dialog-head h2{font-size:1.45rem}#ls-print-dialog .ls-dialog-actions button{width:100%}.ls-printbar label{width:100%;min-width:0}}.ls-variant-choice{border:0;margin:1.6rem 0;padding:0;min-width:0}#ls-sequence-link[hidden],.ls-sequence-builder[hidden],.ls-variant-choice[hidden]{display:none}.ls-variant-choice legend{padding:0;font-size:1.15rem;font-weight:800}.ls-variant-choice>p{font-size:.9rem;max-width:80ch}.ls-variant-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.85rem}.ls-variant-card{display:grid;grid-template-columns:24px 1fr;gap:.55rem;padding:1.1rem;border:2px solid var(--ls-line);border-radius:16px;background:#fffaf1;cursor:pointer}.ls-variant-card input{width:20px;height:20px;margin:2px 0;accent-color:var(--ls-teal)}.ls-variant-card strong{font-size:1rem}.ls-variant-card span{grid-column:2;line-height:1.5;font-size:.88rem}.ls-variant-card:has(input:checked){border-color:var(--ls-teal);background:#e6f2ea;box-shadow:0 4px 0 #c2dfd2}.ls-variant-card:focus-within{outline:3px solid var(--ls-coral);outline-offset:3px}.ls-sequence-builder{padding:clamp(22px,4vw,42px);margin:2rem 0;border:1px solid var(--ls-line);border-radius:24px;background:#fffaf1;color:var(--ls-ink);box-shadow:var(--ls-shadow)}.ls-sequence-builder>label,.ls-sequence-item>label{display:block;margin:1.2rem 0 .4rem;font-weight:750}.ls-sequence-builder input,.ls-sequence-builder select,.ls-sequence-builder textarea{display:block;width:100%;max-width:100%;margin:.45rem 0 .9rem;padding:.8rem;border:1px solid var(--ls-line);border-radius:10px;background:#fff;color:#172c3b;font:inherit}.ls-sequence-items{list-style:none;margin:1.5rem 0;padding:0;display:grid;gap:1rem}.ls-sequence-item{border:1px solid var(--ls-line);border-left:5px solid var(--ls-teal);border-radius:15px;padding:1.25rem;background:var(--ls-paper)}.ls-sequence-item-head{display:flex;gap:1rem;align-items:center}.ls-sequence-item-head h3{margin:0;overflow-wrap:anywhere}.ls-sequence-reference summary{cursor:pointer;font-weight:700}.ls-sequence-reference p{white-space:pre-line;overflow-wrap:anywhere}.ls-sequence-actions{display:flex;gap:.7rem;flex-wrap:wrap;align-items:center}.ls-sequence-help{font-size:.88rem}[data-theme=dark] .ls-sequence-builder,[data-theme=dark] .ls-variant-card{background:#142c39;color:#f5f0e5;border-color:#627b85}[data-theme=dark] .ls-variant-card:has(input:checked){background:#184744;border-color:#88d5bc;box-shadow:none}[data-theme=dark] .ls-sequence-item{background:#1b3745;color:#f5f0e5;border-color:#52757c}[data-theme=dark] .ls-sequence-builder :is(input,textarea,select){background:#102732;color:#fff;border-color:#6d8590}@media (max-width:720px){.ls-variant-grid{grid-template-columns:1fr}.ls-sequence-item{padding:1rem}}