:root{font-family:"Noto Sans KR",system-ui,-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;color:#22314b;background:#f1f7ff;font-synthesis:none;line-height:1.5;font-size:16px}*{box-sizing:border-box}body{margin:0}button,select{font:inherit}button,a,select{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:default;opacity:.4}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,select:focus-visible{outline:3px solid #2670ed;outline-offset:4px}.skip{position:fixed;top:-60px;left:16px;background:white;padding:10px;z-index:20}.skip:focus{top:10px}.topbar{height:76px;padding:0 32px;display:flex;align-items:center;gap:44px;border-bottom:1px solid #dce7f4;background:#fff}.wordmark{font-size:34px;font-weight:900;letter-spacing:-2px;color:#283a55}.wordmark span{color:#ff9560}.topbar nav{display:flex;align-items:center;gap:8px}.topbar nav a{font-size:15px;font-weight:750;padding:10px 18px;border-radius:13px;color:#60718a}.topbar nav a[aria-current]{background:#eaf2ff;color:#2463cd}.header-note{margin-left:auto;font-size:14px;font-weight:700;color:#60718a}.workspace{display:grid;grid-template-columns:250px minmax(0,1fr);min-height:calc(100dvh - 76px)}.activity-menu{background:#fff;border-right:1px solid #dce7f4;padding:27px 18px}.menu-heading{display:flex;align-items:center;justify-content:space-between;padding:0 7px}.menu-heading h1{font-size:20px;letter-spacing:-.5px;margin:0}.menu-heading span{font-size:14px;font-weight:800;color:#5072a1}.progress-track{height:6px;margin:17px 7px 26px;background:#eaf0f8;border-radius:10px;overflow:hidden}.progress-track span{display:block;width:0;height:100%;background:#4b8af1;transition:width .3s}.subject-group{margin:0 0 23px}.subject-group h2{margin:0 8px 9px;font-size:13px;letter-spacing:.02em;color:#8291a6}.activity-choice{width:100%;border:1px solid transparent;background:transparent;text-align:left;padding:11px 9px;display:flex;align-items:center;gap:10px;border-radius:13px;margin:3px 0;color:#4a5b73}.activity-choice:hover{background:#f5f8ff}.activity-choice[aria-current]{background:#edf4ff;border-color:#d3e3ff;color:#205cc2}.activity-choice .number{display:grid;place-items:center;flex:none;width:29px;height:29px;background:#f0f4f9;border-radius:10px;font-size:12px;font-weight:800;color:#8b9ab0}.activity-choice[aria-current] .number{background:#3479e8;color:white}.activity-choice.is-complete .number{background:#e0f4e9;color:#23714b}.choice-text{min-width:0}.choice-title{display:block;font-size:14px;font-weight:750;line-height:1.4}.choice-detail{display:block;font-size:12px;color:#8290a4;margin-top:3px}.save-note{font-size:12px;color:#8290a4;padding:0 8px}main{min-width:0;padding:24px 28px 16px;outline:none}.activity-heading{display:flex;gap:16px;align-items:center;justify-content:space-between;margin-bottom:18px}.subject-label{font-size:13px;color:#4f79b9;font-weight:800}.activity-heading h2{font-size:25px;letter-spacing:-.8px;margin:4px 0 3px}.activity-heading p{font-size:14px;color:#71829b;margin:0}.quiet-button,.next-button{border:1px solid #d9e3ef;background:#fff;color:#50617b;padding:9px 15px;border-radius:12px;font-size:14px;font-weight:750;white-space:nowrap}.next-button{background:#3378e8;border-color:#3378e8;color:#fff}.quiet-button:hover:not(:disabled){background:#eaf2ff}.next-button:hover:not(:disabled){background:#2264cd}.game-stage{background:white;border:1px solid #dce7f4;box-shadow:0 7px 25px #2b568309;border-radius:22px;overflow:hidden;position:relative;aspect-ratio:16 / 9;height:auto;min-height:0}.game-stage iframe{display:block;border:0;position:absolute;left:50%;top:50%;width:1280px;height:720px;max-width:none;transform:translate(-50%,-50%) scale(var(--game-scale,1));transform-origin:center;background:white}.game-stage:fullscreen{border-radius:0;border:0;width:100vw;height:100dvh;min-height:0}.activity-footer{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:14px}#activity-status{font-size:14px;color:#72829b;text-align:center}#activity-status.complete{color:#247c55;font-weight:750}.mobile-picker{display:none}@media(min-width:1600px){main{padding-left:40px;padding-right:40px}.activity-menu{padding-left:22px;padding-right:22px}.workspace{grid-template-columns:270px minmax(0,1fr)}}@media(max-width:1000px){.workspace{grid-template-columns:210px minmax(0,1fr)}.activity-menu{padding:22px 10px}.topbar{gap:26px;padding:0 22px}main{padding:20px 16px}.activity-heading h2{font-size:22px}.game-stage{min-height:0}}@media(max-width:760px){.topbar{height:64px;padding:0 16px;gap:16px}.wordmark{font-size:28px}.topbar nav{gap:2px}.topbar nav a{font-size:13px;padding:9px 10px}.header-note{display:none}.workspace{display:block}.activity-menu{display:none}main{padding:15px 12px}.mobile-picker{display:flex;align-items:center;gap:12px;margin-bottom:18px}.mobile-picker label{font-size:14px;font-weight:750;white-space:nowrap}.mobile-picker select{border:1px solid #d6e3f3;border-radius:12px;background:white;color:#344b6e;padding:10px 12px;width:100%;min-width:0;font-size:14px}.activity-heading{margin-bottom:14px;gap:8px}.activity-heading h2{font-size:20px}.activity-heading p{font-size:13px}.subject-label{font-size:12px}.quiet-button,.next-button{padding:9px 11px;font-size:13px}.game-stage{min-height:0;height:auto;border-radius:16px}.activity-footer{margin-top:12px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
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