@import url('fonts.css');:root{font-family:'Noto Sans KR','Malgun Gothic',sans-serif;color:#183f33;background:#f8f7f0;font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,textarea{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,textarea:focus-visible{outline:4px solid #de8651;outline-offset:3px}.skip{position:absolute;top:-100px;background:#fff;padding:10px}.skip:focus{top:0}.overline{font-size:12px;font-weight:800;letter-spacing:.17em;color:#f8d397}.overline.dark{color:#b86d43}h1,h2,h3,p{margin-top:0}dialog{border:0;border-radius:26px;box-shadow:0 30px 100px #0a2c2460;padding:36px;max-width:min(640px,92vw);max-height:87vh;color:#214437;background:#fffdf8;line-height:1.75}dialog::backdrop{background:#0c271fc4}dialog h2{font-family:'Noto Serif KR',serif;font-size:30px;line-height:1.4;margin:12px 36px 13px 0}dialog p{font-size:15px;word-break:keep-all}.close-modal{position:absolute;right:19px;top:16px;background:#ecf0e9;border:0;border-radius:50%;width:38px;height:38px;font-size:25px}.source-list{padding-left:20px;line-height:2.2}.source-list a{text-decoration:underline}.source-caveat{font-size:13px;background:#f2eee4;color:#746b59;border-radius:12px;padding:13px}.qr-art{display:grid;place-items:center;background:white;border:1px solid #e3e9e0;border-radius:18px;width:250px;height:250px;margin:18px auto}.qr-art svg{width:215px;height:215px}.share-url{display:block;text-align:center;color:#1b6850;font-weight:800;text-decoration:underline}.qr-url{font-size:12px;overflow-wrap:anywhere;color:#627269;text-align:center}.note-lead{font-size:17px;font-weight:600}
.g-head{max-width:1500px;padding:20px 5%;margin:auto;display:flex;align-items:center;justify-content:space-between}.g-brand{display:flex;gap:12px;align-items:center;font-weight:800;font-size:18px}.g-brand b{display:grid;place-items:center;width:44px;height:44px;border-radius:13px;background:#174335;color:#f8dcae;font-family:'Noto Serif KR',serif;font-size:28px}.g-brand small{display:block;color:#809386;font-size:11px;letter-spacing:.1em;margin-top:3px}.head-link{font-size:13px;font-weight:700;border-bottom:1px solid #659181;padding:8px}.g-home{max-width:1500px;margin:auto;padding:0 5%}.g-hero{height:clamp(400px,42vw,590px);position:relative;overflow:hidden;border-radius:28px;background:#123c35}.g-hero>img{width:100%;height:100%;object-fit:cover}.g-hero-wash{position:absolute;inset:0;background:linear-gradient(90deg,#0d2a29eb 0%,#0f302f9b 48%,#0f302f05 100%)}.g-hero-copy{position:absolute;inset:0;padding:6% 6%;display:flex;align-items:flex-start;flex-direction:column;color:#fff}.g-hero h1{font-family:'Noto Serif KR',serif;font-size:clamp(36px,4.3vw,67px);line-height:1.33;letter-spacing:-.07em;margin:auto 0 20px}.g-hero h1 em{font-style:normal;color:#f9d291}.g-hero-copy>p{font-size:17px;line-height:1.85;margin:0 0 35px;color:#f1eee4}.hero-note{font-size:10px;align-self:flex-end;color:#f4f4e7b8}.grade-chooser{padding:60px 0 80px}.chooser-heading h2{font-family:'Noto Serif KR',serif;font-size:clamp(27px,3vw,39px);letter-spacing:-.05em;margin:7px 0 11px}.chooser-heading p{color:#71867a;font-size:15px}.grade-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:26px}.grade-card{background:#fff;border:1px solid #e0e4dc;border-radius:23px;overflow:hidden;transition:transform .25s,box-shadow .25s}.grade-card:hover{transform:translateY(-5px);box-shadow:0 17px 33px #203e311b}.grade-art{height:195px;overflow:hidden}.grade-art img{width:100%;height:100%;object-fit:cover;transition:transform .5s}.grade-card:hover img{transform:scale(1.05)}.grade-meta{display:flex;justify-content:space-between;align-items:center;color:#bd7650;font-size:13px;font-weight:800;margin:20px 23px 5px}.grade-meta strong{font-family:'Noto Serif KR',serif;font-size:31px;color:#d4dacf}.grade-card h3{font-size:22px;line-height:1.4;margin:0 23px 7px}.grade-card p{font-size:13px;color:#7b887e;margin:0 23px 22px}.grade-foot{display:flex;justify-content:space-between;border-top:1px solid #e8eae3;padding:14px 23px;font-size:12px;color:#718378}.grade-foot b{color:#24604c}.fact-strip{margin-top:30px;background:#e8eee6;border-radius:19px;padding:24px 30px;display:flex;align-items:center;gap:24px}.fact-strip b{white-space:nowrap}.fact-strip p{font-size:13px;line-height:1.7;color:#5d7565;margin:0}.fact-strip button{white-space:nowrap;border:0;background:#204b3d;color:white;padding:10px 16px;border-radius:9px;font-size:12px;font-weight:700}.g-footer{display:flex;justify-content:space-between;padding:25px 0;border-top:1px solid #d8e0d8;color:#76877a;font-size:12px}.g-footer a{text-decoration:underline}
.worksheet-links{display:flex;flex-wrap:wrap;gap:12px;align-items:center;background:#fffdf7;border:1px solid #e1e7d9;border-radius:16px;padding:16px 20px;margin-top:19px}.worksheet-links>div:first-child{display:grid;gap:2px;margin-right:auto}.worksheet-links strong{font-size:15px}.worksheet-links span{font-size:11px;color:#849187}.worksheet-grade{display:flex;align-items:center;gap:7px;font-size:11px}.worksheet-grade b{color:#b76941}.worksheet-grade a{padding:7px 9px;background:#eef3e9;border-radius:7px;color:#235740;font-weight:700}.skia-card{position:absolute;z-index:3;left:2%;bottom:7%;width:96%;border-radius:12px;box-shadow:0 12px 35px #08201870;animation:enter 1s .4s both}
.presenter-mode{background:#0b211b;color:#fff}.presenter-shell{height:100dvh;min-height:640px;display:flex;flex-direction:column;overflow:hidden}.presenter-head{height:70px;flex:none;padding:0 2.1vw;display:flex;align-items:center;justify-content:space-between;gap:10px;background:#fbfaf5;color:#174333}.mini-brand{display:flex;align-items:center;gap:10px;font-size:12px;font-weight:800;color:#275443}.mini-brand:first-letter{font-family:'Noto Serif KR',serif;font-size:30px}.presenter-context{display:flex;gap:12px;align-items:center;font-size:13px}.presenter-context b{font-family:'Noto Serif KR',serif;font-size:22px}.presenter-context span{color:#819487;border-left:1px solid #cdd8cb;padding-left:12px}.presenter-tools{display:flex;gap:6px}.presenter-tools button{border:1px solid #d8e2d9;border-radius:10px;background:#fff;padding:9px 11px;font-weight:700;color:#3b604f;font-size:11px}.presenter-tools button:hover{background:#eaf1e9}.slide-canvas{flex:1;min-height:0;display:grid;grid-template-columns:53% 47%;position:relative;overflow:hidden}.slide-image{position:relative;overflow:hidden;background:#183429}.slide-photo{display:block;width:100%;height:100%;object-fit:cover;animation:kenburns 24s ease-out both}.slide-image:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,#122e2626 70%,#122e2699)}.image-credit{position:absolute;z-index:2;left:23px;bottom:20px;background:#102c29c8;color:#fff8e4;border-radius:6px;padding:6px 9px;font-size:10px}.slide-content{background:#f9f7ee;color:#183c31;display:flex;flex-direction:column;padding:5% 7% 3.5%;position:relative;overflow:auto}.slide-content:before{content:'';position:absolute;width:330px;height:330px;border:1px solid #dbe6d6;border-radius:50%;right:-170px;top:-180px;pointer-events:none}.slide-kicker{color:#be7046;font-size:13px;font-weight:800;letter-spacing:.13em;display:flex;align-items:center;gap:10px;animation:enter .8s both}.slide-kicker i{height:2px;width:24px;background:#be7046}.slide-main{margin:auto 0;max-width:720px}.slide-number{font-family:'Noto Serif KR',serif;color:#9daa9b;font-size:17px}.slide-main h1{font-family:'Noto Serif KR',serif;font-weight:800;font-size:clamp(35px,4vw,72px);line-height:1.24;letter-spacing:-.065em;word-break:keep-all;margin:10px 0 26px;animation:enter .9s .08s both}.slide-question{font-size:clamp(18px,1.55vw,28px);line-height:1.6;color:#475e50;word-break:keep-all;animation:enter .9s .2s both}.slide-bottom{display:flex;justify-content:space-between;color:#8a9b8d;font-size:12px;border-top:1px solid #dce4da;padding-top:14px}.answer{background:#e9f0e5;border-left:4px solid #43805e;border-radius:0 12px 12px 0;padding:16px 18px;margin-top:18px;display:none}.answer.visible{display:block;animation:enter .65s both}.answer b{color:#367051;font-size:13px}.answer p{font-size:clamp(16px,1.18vw,21px);line-height:1.7;margin:5px 0 0;word-break:keep-all}.quiz-choices{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:15px}.quiz-choice{display:flex;align-items:center;gap:10px;text-align:left;border:1px solid #d7e2d5;background:#fffef8;border-radius:12px;padding:12px;font-size:clamp(13px,1vw,17px);line-height:1.4;word-break:keep-all;color:#275341;min-height:60px}.quiz-choice:hover:not(:disabled),.quiz-choice.picked{border-color:#43846b;background:#f0f7ee}.quiz-choice.correct{border-color:#287a54;background:#d9f3dc}.quiz-choice.wrong{border-color:#cf7155;background:#f9e7dd}.choice-index{flex:none;display:grid;place-items:center;width:29px;height:29px;border-radius:50%;background:#e8eee3;font-weight:800;font-size:12px}.picture-options .quiz-choice{display:block;padding:7px}.picture-options .quiz-choice img{display:block;width:100%;aspect-ratio:2.1;object-fit:cover;border-radius:7px;margin-bottom:6px}.picture-options .choice-index{display:inline-grid;margin-right:5px}.picture-options .quiz-choice>span:last-child{font-size:12px}.qr-inline{border:0;background:#214d3c;color:white;border-radius:11px;padding:12px 19px;font-size:15px;font-weight:800}.presenter-foot{height:87px;flex:none;background:#103a2e;padding:0 3vw;display:flex;align-items:center;justify-content:space-between;gap:20px}.foot-left{display:flex;align-items:center;gap:14px;color:#d9e4d9;font-size:12px}.progress{width:clamp(90px,16vw,260px);height:5px;border-radius:10px;background:#547367}.progress span{display:block;height:100%;background:#e9bc78;border-radius:10px;transition:width .35s}.foot-controls{display:flex;gap:10px}.foot-controls button{border:1px solid #809788;background:transparent;color:#fff;border-radius:10px;padding:12px 22px;font-weight:800}.foot-controls button:disabled{opacity:.4;cursor:default}.foot-controls .next{background:#efc077;color:#193d30;border-color:#efc077;min-width:170px}.animate .slide-kicker,.animate .slide-main h1,.animate .slide-question,.animate .answer.visible{animation:enter .85s both}.animate .slide-main h1{animation-delay:.08s}.animate .slide-question{animation-delay:.18s}@keyframes enter{from{opacity:0;transform:translateY(23px);filter:blur(3px)}to{opacity:1;transform:translateY(0);filter:blur(0)}}@keyframes kenburns{from{transform:scale(1.02)}to{transform:scale(1.10)}}
.student-mode{background:#f7f8f1;color:#254a3b;min-height:100vh}.student-head{display:flex;justify-content:space-between;align-items:center;background:#214b3c;color:white;padding:17px max(5%,20px);font-size:13px}.student-head a{font-weight:800}.student-main{max-width:960px;margin:auto;padding:40px 20px 70px}.student-title h1{font-family:'Noto Serif KR',serif;font-size:clamp(34px,5vw,52px);margin:10px 0}.student-title p{color:#738777}.activity-tabs{display:flex;gap:7px;overflow:auto;border-bottom:1px solid #dce4d9;margin:30px 0 25px}.activity-tabs button{border:0;background:transparent;padding:13px 18px;white-space:nowrap;color:#7a897e;font-weight:700}.activity-tabs button.on{border-bottom:3px solid #b86e45;color:#245a42}.activity-panel{background:#fff;border:1px solid #e0e7db;border-radius:23px;padding:25px}.activity-panel h2{font-family:'Noto Serif KR',serif;font-size:27px}.activity-panel>p{color:#627c6a;line-height:1.7}.student-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:11px;margin-top:22px}.story-option{border:1px solid #d7e1d5;background:#fff;text-align:left;border-radius:12px;overflow:hidden;padding:0;font-weight:700;color:#25533e}.story-option.chosen{opacity:.46}.story-option img{display:block;width:100%;aspect-ratio:2.1;object-fit:cover}.story-option span{display:block;padding:11px}.selected-sequence{background:#edf3e9;padding:15px;border-radius:10px;margin:19px 0;font-size:13px;line-height:1.6}.activity-actions{display:flex;align-items:center;gap:15px;flex-wrap:wrap}.activity-actions button{border:0;background:#295a44;color:white;border-radius:9px;padding:10px 15px}.feedback{display:block;margin-top:12px;border-radius:10px;padding:12px;font-size:13px}.good{color:#236b48;background:#e4f4e3}.again{color:#a35339;background:#f9ede5}.class-list{display:grid;gap:12px}.class-row{border:1px solid #e2e9de;border-radius:12px;padding:15px;display:grid;gap:10px}.class-row>div{display:flex;gap:7px}.class-row button,.action-choices button{border:1px solid #d8e3d8;background:#f8fbf7;color:#2a5b45;border-radius:9px;padding:9px 13px}.class-row button.on,.action-choices button.on{background:#2d644b;color:white}.class-row small{font-size:12px;border-radius:7px;padding:7px}.action-choices{display:grid;gap:10px;margin:22px 0}.action-choices button{text-align:left;padding:13px;font-weight:600}.reflection{display:grid;gap:10px;margin-top:27px;font-weight:700}.reflection textarea{min-height:110px;resize:vertical;padding:14px;border:1px solid #cfdbcf;border-radius:10px}.save-note,.privacy{font-size:14px;line-height:1.6;color:#5b6b62;margin-top:25px}.tab-heading{display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;margin-bottom:12px}.tab-heading h2{margin:0}.class-row>.say-line{align-items:center;flex-wrap:wrap;gap:8px 12px}.action-row{display:flex;gap:8px;align-items:center}.action-row>button[data-act]{flex:1}.activity-panel .say-button{flex:none;border:1px solid #e3c79c;background:#fff6e4;color:#7a4320;border-radius:999px;padding:6px 12px;font-size:14px;font-weight:700;line-height:1.3;text-align:center;white-space:nowrap}.activity-panel .say-button:hover{background:#fde9c4}
@media(max-width:1000px){.presenter-shell{min-height:0;height:auto;overflow:visible}.slide-canvas{grid-template-columns:1fr}.slide-image{height:38vh;min-height:230px}.slide-content{min-height:53vh;padding:28px}.presenter-head{height:auto;min-height:60px;flex-wrap:wrap;padding:10px 15px}.presenter-tools{width:100%;overflow:auto}.presenter-foot{position:sticky;bottom:0;height:75px;z-index:4}.grade-cards{grid-template-columns:1fr 1fr}.fact-strip{display:block}.fact-strip button{margin-top:12px}}@media(max-width:650px){.g-head{padding:12px 5%}.g-hero{height:540px}.g-hero-copy{padding:32px 23px}.g-hero h1{font-size:37px}.g-hero-copy>p{font-size:15px}.grade-cards{grid-template-columns:1fr}.grade-chooser{padding:38px 0}.chooser-heading h2{font-size:29px}.presenter-context span,.mini-brand span{display:none}.presenter-tools button{font-size:10px;padding:7px}.slide-image{height:31vh}.slide-content{padding:22px;min-height:55vh}.slide-main h1{font-size:36px;margin-bottom:16px}.slide-question{font-size:19px}.quiz-choices{grid-template-columns:1fr}.quiz-choice{min-height:45px;padding:8px}.picture-options{grid-template-columns:1fr 1fr}.presenter-foot{height:67px;padding:8px 14px}.progress-label,.progress{display:none}.foot-controls button{padding:10px}.foot-controls .next{min-width:130px}.student-grid{grid-template-columns:1fr 1fr}.student-main{padding:24px 14px}.activity-panel{padding:17px}.student-head span{font-size:11px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}
.slide-content{overflow-x:hidden}.slide-content:before{right:-135px}.slide-main,.slide-question,.answer{min-width:0}