@charset "UTF-8";
:root{--green:#146b55;--deep:#174c3d;--ink:#243e34;--muted:#68796f;--line:#dce5dd;--bg:#fafbf7;--peach:#fbede1;--mint:#e9f2e9;--lavender:#eeedf7;--font:'Malgun Gothic','Apple SD Gothic Neo',system-ui,sans-serif;color-scheme:light;font-family:var(--font)}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-size:15px;line-height:1.7}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default}a,button,input{touch-action:manipulation}button,input{color:inherit}img{max-width:100%;height:auto}h1,h2,h3,p,figure{margin:0}h1,h2,h3{line-height:1.45;letter-spacing:-.045em}h1{font-size:34px}h2{font-size:23px}h3{font-size:20px}p{overflow-wrap:break-word}[hidden]{display:none!important}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #bc8b39;outline-offset:4px}.skip{position:fixed;left:20px;top:-100px;z-index:100;background:white;padding:12px}.skip:focus{top:10px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
.site-header{max-width:1320px;margin:0 auto;padding:24px 28px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:16px}.brand{display:flex;align-items:center;gap:10px}.brand img{border-radius:18px;width:60px;flex:none}.brand strong{font-size:29px;font-weight:900;letter-spacing:-2px;display:block;line-height:1.2}.brand em{font-style:normal;color:var(--green)}.brand-dot{color:#d3a64c}.brand small{display:block;color:var(--muted);font-size:11px;letter-spacing:.05em;margin-top:6px}.series{display:flex;gap:6px;align-items:center;font-size:12px}.series>span{color:var(--muted);margin-right:8px}.series a,.series b{padding:7px 14px;border:1px solid var(--line);border-radius:30px;background:white}.series b{background:var(--green);color:#fff;border-color:var(--green)}
.layout{max-width:1320px;padding:32px 28px 56px;margin:auto;display:grid;grid-template-columns:190px minmax(0,1fr);gap:36px}.sidebar{align-self:start;position:sticky;top:24px}.sidebar nav{display:grid;gap:5px}.sidebar nav>a{display:flex;gap:12px;padding:13px 12px;border-radius:10px;font-weight:700;font-size:14px}.sidebar nav>a:hover,.sidebar nav>a[aria-current]{background:#e9f0e8;color:var(--green)}.sidebar small{display:block;font-size:11px;color:var(--muted);font-weight:400;margin-top:3px}.nav-symbol{min-width:23px;font-size:18px;font-weight:400;line-height:1.3}.nav-label{color:var(--muted);font-size:10px;letter-spacing:.12em;padding:21px 12px 8px}.nav-divider{border-top:1px solid var(--line);margin:20px 12px 12px}.side-note{border-top:1px solid var(--line);padding:22px 12px;margin-top:34px;font-size:11px}.side-note b{font-size:12px}.side-note p{color:var(--muted);margin-top:8px}main{min-width:0;outline:none}.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:46px;padding:11px 18px;border:1px solid #cad8ce;border-radius:8px;background:white;color:var(--green);font-size:13px;font-weight:700;line-height:1.5;text-align:center}.button:hover{background:#f0f5ed;border-color:var(--green)}.button.primary{background:var(--green);border-color:var(--green);color:#fff}.button.primary:hover{background:#10533f}.button.large{min-height:54px;font-size:16px}.actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.text-link{font-size:12px;font-weight:700;color:var(--green);text-underline-offset:4px}.text-link:hover{text-decoration:underline}.eyebrow{font-size:10px;letter-spacing:.13em;font-weight:700;color:var(--green);line-height:1.6}.small{font-size:12px;color:var(--muted)}.tag{display:inline-flex;font-size:11px;font-weight:700;padding:3px 10px;border-radius:30px;color:var(--deep)}.peach{background:var(--peach)}.mint{background:var(--mint)}.lavender{background:var(--lavender)}.search-panel{margin-bottom:20px}.search-panel label,.library-search label{font-size:11px;font-weight:700;display:block;margin-bottom:8px;color:var(--muted)}.search-line{display:flex;align-items:center;border:1px solid #cbdacf;background:#fff;border-radius:10px;padding:6px;gap:8px}.search-line>span{font-size:27px;line-height:1;color:var(--green);padding-left:12px}.search-line input{flex:1;min-width:0;border:0;background:transparent;padding:8px 10px;min-height:36px;font-size:14px}.search-line input:focus{outline-offset:0;outline:2px solid #b9d4c3;border-radius:4px}.search-line .button{min-height:38px;padding:7px 20px}
.hero{position:relative;display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);align-items:center;gap:18px;min-height:414px;background:var(--green);color:#fff;border-radius:19px;padding:44px 36px 48px;overflow:hidden}.hero .eyebrow{color:#d5e9d8;font-size:10px;letter-spacing:.04em}.little-dot{display:inline-block;width:3px;height:3px;border-radius:50%;background:#b5d7bd;vertical-align:middle;margin:0 8px}.hero h1{font-size:44px;line-height:1.4;margin:18px 0 15px;font-weight:800;letter-spacing:-.06em}.hero h1>span{color:#f6e5ac}.hero-lede{font-size:14px;line-height:1.9;color:#edf5eb}.hero-facts{display:flex;flex-wrap:wrap;gap:14px;font-size:10px;margin:20px 0 26px;color:#d8ebdc}.hero-facts span{display:flex;gap:5px;align-items:center}.hero-facts span:before{content:'✓';color:#f2d794}.hero-cta{background:#faf8ee;border-color:#faf8ee;justify-content:space-between;width:min(100%,272px);color:var(--deep);padding:13px 17px}.hero-figure{align-self:center;text-align:center;position:relative}.character-frame{border-radius:50%;background:#fff;width:100%;max-width:300px;aspect-ratio:1;margin:auto;overflow:hidden;box-shadow:0 0 0 12px #ffffff0b}.character-frame img{display:block;width:100%;height:100%;object-fit:cover}.hero figcaption{font-size:10px;margin-top:22px;color:#dae9d9}.hero figcaption b{display:block;color:#f5e3ae;letter-spacing:.1em;font-size:10px}.hero figcaption span{display:block;margin-top:4px}.hero-index{position:absolute;left:36px;bottom:12px;font-size:8px;letter-spacing:.14em;color:#a9cbb5}
.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px}.section-heading .eyebrow{margin-bottom:5px}.section-heading>p{font-size:11px;color:var(--muted);text-align:right}.start-section{margin:36px 0 26px}.band-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.band-card{padding:19px 15px;display:flex;gap:11px;align-items:center;border:1px solid #00000004;border-radius:11px;transition:transform .15s}.band-card:hover{transform:translateY(-3px)}.band-number{font-size:11px;color:var(--muted);align-self:flex-start}.band-card h3{font-size:16px;letter-spacing:-.04em;margin:2px 0 4px}.band-card small{font-size:9px;color:var(--muted)}.band-card p{font-size:10px;color:var(--muted)}.band-card>b{margin-left:auto;font-size:17px;align-self:flex-start}.recent-strip{display:flex;align-items:center;gap:18px;padding:21px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:40px}.recent-strip>div:first-child{flex:1}.recent-strip h3{font-size:17px;margin-top:4px}.recent-strip p{font-size:11px;color:var(--muted);margin-top:4px}.mini-stamps{display:flex;flex-direction:column;align-items:center;border-left:1px solid var(--line);padding-left:24px;min-width:90px}.mini-stamps>b{font-size:21px;color:var(--green);line-height:1.4}.mini-stamps>span,.mini-stamps>a{font-size:9px;color:var(--muted)}.mini-stamps>a{text-decoration:underline}.unit-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.unit-card{background:white;border:1px solid var(--line);border-radius:12px;overflow:hidden;display:flex;flex-direction:column;height:100%;position:relative}.unit-art{height:115px;display:grid;place-items:center;background:var(--peach)}.unit-card.mint .unit-art{background:var(--mint)}.unit-card.lavender .unit-art{background:var(--lavender)}.unit-art .art{width:72px;height:78px}.unit-card-top{display:flex;align-items:center;justify-content:space-between;padding:17px 16px 0;gap:8px}.unit-card-top>span:last-child{font-size:10px;color:var(--muted)}.unit-english{font-size:10px;color:var(--muted);letter-spacing:.03em}.unit-card>.unit-english{padding:12px 16px 0}.unit-card h3{padding:3px 16px 0;font-size:17px}.unit-card h3 a:after{content:'';position:absolute;inset:0}.unit-card:hover{border-color:#84a893}.unit-card>p:not(.unit-english){font-size:11px;color:var(--muted);padding:7px 16px 18px}.unit-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;padding:13px 16px;border-top:1px solid #e9eee8;margin-top:auto;font-size:9px}.unit-bottom>b{color:var(--green)}.home-notes{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-top:43px}.home-notes article{border-top:1px solid var(--line);padding-top:24px}.home-notes h3{font-size:19px;margin-top:10px}.home-notes p{font-size:12px;color:var(--muted);margin:12px 0}.site-footer{border-top:1px solid var(--line);padding:26px 28px 35px;max-width:1264px;margin:auto;display:flex;justify-content:space-between;gap:24px;font-size:10px;color:var(--muted)}.site-footer b{font-size:15px;color:var(--green)}.site-footer p{margin-top:5px}.site-footer>p{text-align:right}.site-footer a{text-decoration:underline}.site-footer>p span{margin-left:5px}.mobile-nav{display:none}.toast{position:fixed;z-index:100;bottom:30px;left:50%;transform:translateX(-50%);width:max-content;max-width:calc(100% - 32px);padding:14px 20px;background:var(--deep);color:white;border-radius:12px;font-size:14px;box-shadow:0 7px 28px #123d2c30}
.crumb{display:flex;gap:10px;flex-wrap:wrap;font-size:10px;color:var(--muted);margin-bottom:25px}.crumb b{font-weight:400;color:var(--ink)}.page-heading{margin-bottom:28px}.page-heading .eyebrow{margin-bottom:10px}.page-heading h1{font-size:33px;margin-bottom:10px}.page-heading>p:last-child{font-size:13px;color:var(--muted);line-height:1.9}.library-search{margin-bottom:20px}.filter-tabs{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:20px}.filter-tabs a{display:block;border:1px solid var(--line);padding:9px 15px;font-size:12px;border-radius:7px;background:white;min-height:42px}.filter-tabs a[aria-current]{background:var(--green);color:#fff;border-color:var(--green)}#result-count{margin-bottom:12px}.coverage-note{font-size:11px;color:var(--muted);border-top:1px solid var(--line);padding-top:20px;margin-top:26px;line-height:1.9}.empty-state{padding:40px 20px;background:white;border:1px dashed var(--line);border-radius:12px;text-align:center}.empty-state h2{font-size:20px}.empty-state p{margin:12px 0}.print-list{display:grid;gap:14px}.print-row{display:flex;justify-content:space-between;gap:24px;padding:24px;border:1px solid var(--line);border-radius:12px;background:white;align-items:center}.print-row h2{font-size:20px;margin:7px 0}.print-row p{font-size:12px;color:var(--muted)}.print-row .actions{max-width:270px}.print-row .text-link{width:100%;margin-top:4px;text-align:right}
.unit-heading{display:flex;align-items:center;justify-content:space-between;padding:28px 32px;border-radius:15px;margin-bottom:28px;gap:20px}.unit-heading .tag{background:#fff9}.unit-heading .unit-english{margin-top:15px}.unit-heading h1{font-size:32px;margin:3px 0 8px}.unit-heading p:not(.unit-english){font-size:12px;color:var(--muted)}.unit-heading-art{width:125px;flex:none}.art{width:70px;height:74px;flex:none;display:block}.unit-heading-art .art{width:100%;height:130px}.meta-chips{display:flex;gap:12px;font-size:10px;margin-top:16px;color:var(--muted)}.meta-chips span+span{border-left:1px solid #c8cdbf;padding-left:12px}.unit-workspace{display:grid;grid-template-columns:minmax(0,1fr) 230px;gap:30px}.lesson-goal{padding:15px 18px;background:#edf2e9;border-left:3px solid var(--green);border-radius:0 8px 8px 0}.lesson-goal b{font-size:12px;color:var(--green)}.lesson-goal p{font-size:12px;margin-top:4px}.subheading{margin:28px 0 12px;font-size:21px}.unit-workspace>section>p{font-size:12px;color:var(--muted);margin-bottom:16px}.vocab-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.vocab-item{border:1px solid var(--line);padding:14px 8px 10px;background:white;text-align:center;border-radius:10px;position:relative;display:flex;align-items:center;flex-direction:column}.vocab-item .art{width:60px;height:64px;margin-bottom:7px}.vocab-item>b{font-size:17px}.vocab-item>span{font-size:11px;color:var(--muted)}.sound-icon{position:absolute;top:2px;right:2px;background:transparent;border:0;color:var(--green);width:36px;height:36px;font-size:18px}.sound-info{font-size:11px;color:var(--muted);border:1px solid var(--line);border-radius:7px;padding:12px 15px;margin:20px 0}.sound-info summary{cursor:pointer;color:var(--green);font-weight:700}.sound-info p{margin-top:10px}.lesson-tools{background:white;align-self:start;border:1px solid var(--line);border-radius:12px;padding:20px;display:flex;flex-direction:column;gap:11px;position:sticky;top:24px}.lesson-tools h2{font-size:20px;margin-bottom:7px}.lesson-tools .eyebrow{font-size:8px}.lesson-tools>.text-link{text-align:center}.paper-complete{border-top:1px solid var(--line);margin-top:10px;padding-top:16px;font-size:12px}.paper-complete p{font-size:10px;color:var(--muted);margin:7px 0 13px}.paper-complete .button{width:100%;font-size:11px}.completion-status{display:block;font-size:11px;color:var(--green);margin-top:8px}.worksheet-peek{margin-top:30px;border:1px solid var(--line);border-radius:12px;padding:22px;background:white}.worksheet-peek h2{font-size:19px;margin:8px 0 18px}.worksheet-peek>p{font-size:13px}.worksheet-peek>p b{color:var(--green);margin-right:9px}.peek-options{display:flex;gap:10px;justify-content:space-around;margin-top:18px}.peek-options span{display:flex;flex-direction:column;align-items:center;font-size:12px;gap:8px}.peek-options .art{width:50px;height:53px}.passage{padding:20px 26px;margin:20px 0;background:#f3f2f8;border-radius:10px;border-left:3px solid #afa4ca}.passage>b{display:block;font-size:11px;color:var(--muted);margin-bottom:8px}.passage p{font-size:20px;line-height:1.9;letter-spacing:.01em}
.solve-heading{display:flex;justify-content:space-between;align-items:center;gap:16px}.solve-heading h1{font-size:29px;margin:10px 0 6px}.solve-heading p{font-size:12px;color:var(--muted)}.solve-progress{padding:20px 0 8px;display:flex;align-items:center;gap:20px;font-size:11px;color:var(--green)}progress{width:140px;height:6px;accent-color:var(--green)}.question{border:1px solid var(--line);background:white;border-radius:13px;position:relative;padding:26px 24px 24px;margin:25px 0;min-width:0}.question legend{font-size:17px;font-weight:700;padding:0 7px;max-width:100%;line-height:1.7}.qnumber{display:inline-grid;place-items:center;width:25px;height:25px;border-radius:50%;background:#eef2e9;font-size:12px;margin-right:10px;color:var(--green);vertical-align:middle}.question .listen{display:block;margin:0 0 17px auto;background:#f1f5ed;border:1px solid #dce5d9;border-radius:20px;padding:6px 13px;font-size:11px;min-height:36px;color:var(--green)}.choices{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.choice{position:relative;cursor:pointer;min-height:70px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:10px;border:2px solid #e1e6df;border-radius:10px;padding:16px 8px;background:#fcfdf9;font-size:20px;line-height:1.5;text-align:center}.choice .art{width:80px;height:84px}.choice.selected{border-color:var(--green);background:#eaf3e9;box-shadow:0 0 0 1px var(--green)}.choice input{position:absolute;opacity:0;inset:0;width:100%;height:100%;margin:0;cursor:pointer}.choice:focus-within{outline:3px solid #bd903f;outline-offset:3px}.choice-check{position:absolute;top:4px;right:8px;font-size:14px;color:var(--green);display:none}.choice.selected .choice-check{display:block}.question-art{float:left;margin:-3px 12px 8px 0}.question-art .art{width:65px;height:69px}.hint{font-size:12px;color:var(--muted);margin:5px 0 10px;clear:both}.answer-input{width:100%;border:1.5px solid #bdcdc0;background:#fcfdfb;border-radius:8px;padding:14px 16px;font-size:22px;min-height:60px;scroll-margin:40px}.answer-input::placeholder{font-size:15px;color:#7d8a7d}.feedback{font-size:13px;margin-top:17px;padding:12px 15px;border-radius:7px}.feedback.correct{background:#edf5eb;color:#215b40}.feedback.review{background:#fff4df;color:#775921}.feedback b{font-weight:600}.grade-actions{display:flex;flex-direction:column;align-items:center;gap:13px;margin:30px 0}.grade-actions>p{font-size:12px;color:var(--muted)}.grade-actions .button{min-width:260px}.result-box{display:flex;align-items:center;gap:20px;padding:28px;background:#eaf2e5;border:1px solid #b8cdb4;border-radius:13px;margin:30px 0;scroll-margin-top:20px;outline:none}.result-flower{font-size:65px;color:var(--green)}.result-box h2{font-size:22px}.result-box p{font-size:12px;margin:7px 0}.result-box .actions{margin-top:15px}.stamp-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:35px}.stamp-card{display:flex;flex-direction:column;align-items:center;border:1px dashed #cdd7cb;border-radius:12px;padding:28px 12px;background:white;text-align:center}.stamp-flower{border:2px dashed #dae2d7;border-radius:50%;width:95px;height:95px;line-height:85px;color:#d6e0d2;font-size:65px;margin-bottom:20px}.stamp-card.earned{border:1px solid #b3cbb1;background:#edf4e9}.earned .stamp-flower{color:var(--green);border:2px solid var(--green)}.stamp-card b{font-size:15px}.stamp-card>span:last-child{font-size:11px;color:var(--muted);margin-top:7px}.history-list article{display:flex;align-items:center;gap:20px;justify-content:space-between;padding:20px;border-bottom:1px solid var(--line);background:white}.history-list b{font-size:14px}.history-list span{display:block;font-size:11px;color:var(--muted);margin-top:4px}.guide-content{max-width:740px}.guide-content>section{border-top:1px solid var(--line);padding:25px 0}.guide-content h2{font-size:21px}.guide-content p{font-size:13px;line-height:2;margin-top:14px;color:#506357}
.print-toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px}.print-toolbar h1{font-size:27px;margin:7px 0}.print-toolbar p:last-child{font-size:12px;color:var(--muted)}.paper-preview{margin-top:22px;background:#eef0ea;padding:22px;display:flex;flex-direction:column;gap:25px;align-items:center;border-radius:12px}.paper{font-family:var(--font);color:#222;background:#fff;width:100%;max-width:210mm;min-height:270mm;padding:12mm 12mm 8mm;display:flex;flex-direction:column;box-shadow:0 4px 18px #233f3612}.paper-head{display:flex;justify-content:space-between;gap:12px;border-bottom:2px solid #333;padding-bottom:4mm}.paper-head small{font-size:10px}.paper-head h1{font-size:24px;letter-spacing:-.04em;margin:2mm 0}.paper-head p{font-size:12px}.paper-mark{border:1.5px solid #444;border-radius:50%;width:17mm;height:17mm;display:flex;flex-direction:column;align-items:center;justify-content:center;flex:none;font-size:9px}.paper-mark b{font-size:22px;line-height:1.1}.paper-meta{font-size:11px;border-bottom:1px solid #bbb;padding:3mm 0}.paper-instruction{font-size:11px;padding:3mm 0 2mm}.paper-questions{display:grid;gap:4mm;margin-top:3mm}.paper-question{border-bottom:1px solid #ddd;padding-bottom:3mm;break-inside:avoid}.paper-qline{display:flex;align-items:center;gap:2mm;min-height:8mm}.paper-qline strong{font-size:13px;font-weight:600;line-height:1.6}.paper-qline .qnumber{background:white;border:1px solid #555;color:#222;width:5mm;height:5mm;font-size:10px;flex:none;margin-right:1mm}.paper-qline>.art{width:11mm;height:12mm;margin-left:auto}.paper-options{display:flex;justify-content:space-around;gap:3mm;margin:2mm 0 0 7mm}.paper-option{display:flex;flex-direction:row;align-items:center;justify-content:center;gap:2mm;flex:1;border:1px solid #ccc;border-radius:2mm;padding:1.5mm 2mm;font-size:12px;line-height:1.4}.paper-option>.art{width:12mm;height:13mm}.key-choice{border:2px solid #333;font-weight:700}.paper-hint{font-size:10px;color:#444;margin:1mm 0 1mm 8mm}.writing-line{border-bottom:1px solid #777;height:10mm;margin:0 3mm 0 8mm}.key-text{font-size:14px;margin:2mm 0 1mm 8mm;font-weight:700}.paper .passage{background:white;color:#222;border:1px solid #777;border-radius:2mm;padding:3mm 5mm;margin:2mm 0 0}.paper .passage>b{font-size:10px;color:#222;margin-bottom:1mm}.paper .passage p{font-size:14px;line-height:1.5}.paper-footer{margin-top:auto;padding-top:4mm;display:flex;justify-content:space-between;gap:12px;font-size:8px;color:#444}.after-paper{margin:25px 0;text-align:center}.after-paper p{font-size:12px;color:var(--muted);margin-bottom:12px}#print-root{display:none}
@media(min-width:1450px){.hero h1{font-size:48px}}
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