:root{--bg:#f5f7fb;--card:#fff;--text:#1c2333;--muted:#6b7384;--line:#e2e6ef;--primary:#2f5bea;--primary-soft:#e8eeff;--good:#1a8a4a;--good-soft:#e6f6ec;--bad:#c93636;--bad-soft:#fdeaea;--warn-soft:#fff6dc;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--bg:#12151d;--card:#1b2030;--text:#e8ebf3;--muted:#9aa3b8;--line:#2b3247;--primary:#6d8cff;--primary-soft:#232c4d;--good:#4cc77f;--good-soft:#1b3326;--bad:#ff7b7b;--bad-soft:#3a2020;--warn-soft:#3a3320}}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);-webkit-text-size-adjust:100%;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans KR,Malgun Gothic,sans-serif;line-height:1.6}button{font:inherit;color:inherit;cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}.shell{max-width:720px;margin:0 auto;padding:16px}.muted{color:var(--muted)}.small{font-size:.85rem}.hero{padding:32px 0 8px}.hero h1{margin:0 0 6px;font-size:1.7rem}.hero p{color:var(--muted);margin:0}.section-title{margin:24px 0 10px;font-size:1.05rem}.disclaimer{margin-top:28px}.level-grid{gap:12px;display:grid}.level-card{text-align:left;background:var(--card);border:1px solid var(--line);border-radius:14px;gap:4px;padding:16px;display:grid}.level-card:hover{border-color:var(--primary)}.level-card strong{font-size:1.15rem}.level-card .target{color:var(--primary);font-size:.92rem;font-weight:600}.level-card .desc{color:var(--muted);font-size:.9rem}.topbar{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.brand{background:0 0;border:0;padding:6px 0;font-size:1.15rem;font-weight:700}.level-chip{background:var(--primary-soft);color:var(--primary);border:0;border-radius:999px;padding:6px 12px;font-size:.9rem;font-weight:600}.tabs{gap:6px;margin-bottom:12px;display:flex}.tabs button{background:var(--card);border:1px solid var(--line);border-radius:10px;flex:1;padding:10px}.tabs button.on{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}.panel{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px}.panel h2{margin:0 0 6px;font-size:1.15rem}.panel.empty{text-align:center;padding:36px 18px}.btn{border:1px solid var(--line);background:var(--card);border-radius:10px;padding:12px 14px;font-weight:600}.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn.full{width:100%;margin-top:14px}.small-btn{padding:8px 12px}.link{color:var(--muted);background:0 0;border:0;padding:6px;text-decoration:underline}.start-grid{gap:8px;margin-top:14px;display:grid}@media (width>=560px){.start-grid{grid-template-columns:repeat(3,1fr)}}.chips{flex-wrap:wrap;gap:8px;display:flex}.chip{background:var(--primary-soft);color:var(--primary);border:0;border-radius:999px;padding:8px 14px;font-weight:600}.chip span{opacity:.7;margin-left:4px}.quiz-top{justify-content:space-between;align-items:center;display:flex}.progress{background:var(--line);border-radius:999px;height:6px;margin:8px 0 14px;overflow:hidden}.progress div{background:var(--primary);height:100%;transition:width .25s}.badge{background:var(--primary-soft);color:var(--primary);border-radius:6px;padding:2px 8px;font-size:.82rem;font-weight:700;display:inline-block}.stem{margin:8px 0 12px;font-size:1.05rem;line-height:1.5}.passage{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:14px;font-family:Georgia,Times New Roman,serif;font-size:1.02rem;line-height:1.75}.passage p{margin:0 0 8px}.passage p:last-child{margin-bottom:0}.mark b{margin-right:2px}.mark u{text-underline-offset:3px}.listening{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:14px}.listening-bar{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.listening p{margin:8px 0 0}.script{margin:12px 0 0;padding-left:0;font-family:Georgia,serif;list-style:none}.script li{border-radius:8px;padding:6px 8px}.script li.on{background:var(--primary-soft)}.script b{color:var(--primary);margin-right:6px}.options{gap:8px;margin:14px 0 0;padding:0;list-style:none;display:grid}.option{text-align:left;background:var(--card);border:1px solid var(--line);border-radius:10px;align-items:flex-start;gap:10px;width:100%;padding:12px;display:flex}.option b{color:var(--muted)}.option.picked{border-color:var(--primary);background:var(--primary-soft)}.option.right{border-color:var(--good);background:var(--good-soft)}.option.wrong{border-color:var(--bad);background:var(--bad-soft)}.option:disabled{opacity:1}.options.numbers-only{grid-template-columns:repeat(5,1fr)}.options.numbers-only .option{justify-content:center;padding:12px 0}.options.numbers-only .option b{color:inherit;font-size:1.1rem}.explain{border:1px solid var(--line);border-radius:12px;margin-top:16px;padding:14px}.explain.good{background:var(--good-soft);border-color:var(--good)}.explain.bad{background:var(--bad-soft);border-color:var(--bad)}.explain h3{margin:0 0 6px;font-size:1.05rem}.explain h4{margin:14px 0 6px;font-size:.95rem}.explain p{margin:6px 0}.explain details{margin:8px 0}.explain summary{cursor:pointer;font-weight:600}.notes{gap:6px;margin:0;padding:0;list-style:none;display:grid}.notes li.right{font-weight:600}.trap,.tip{background:var(--warn-soft);border-radius:8px;padding:8px 10px}.picture,.chart{border:1px solid var(--line);background:var(--card);border-radius:10px;margin:12px 0 0;padding:12px}.picture figcaption,.chart figcaption{margin-bottom:8px;font-size:.95rem;font-weight:700}.picture ul{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:8px;margin:0;padding:0;list-style:none;display:grid}.picture li{border:1px solid var(--line);background:var(--bg);border-radius:8px;align-items:center;gap:8px;padding:8px 10px;display:flex}.pic-emoji{font-size:1.6rem;line-height:1}.pic-label{font-family:Georgia,Times New Roman,serif;font-size:.95rem}.chart svg{width:100%;height:auto;display:block}.chart .grid{stroke:var(--line);stroke-width:1px}.chart .tick,.chart .axis,.chart .value{fill:var(--text);font-family:Georgia,serif;font-size:11px}.chart .tick{fill:var(--muted)}.legend{gap:14px;margin:6px 0 0;padding:0;font-size:.85rem;list-style:none;display:flex}.legend i{border-radius:2px;width:10px;height:10px;margin-right:4px;display:inline-block}.chart-unit{color:var(--muted);margin:4px 0 0;font-size:.8rem}.exam-list{gap:10px;margin:12px 0 0;padding:0;list-style:none;display:grid}.exam-list li{border:1px solid var(--line);border-radius:10px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;padding:12px;display:flex}.print-buttons{gap:4px;display:inline-flex}.print-row{margin:16px 0 0}.timer{font-variant-numeric:tabular-nums;color:var(--primary);font-weight:700}.timer.hurry{color:var(--bad)}.navigator{flex-wrap:wrap;gap:6px;margin:10px 0 14px;display:flex}.nav-no{border:1px solid var(--line);background:var(--card);border-radius:8px;min-width:36px;height:36px;font-size:.9rem;font-weight:600}.nav-no.done{background:var(--primary-soft);border-color:var(--primary);color:var(--primary)}.nav-no.current{outline:2px solid var(--primary);outline-offset:1px}.exam-actions{grid-template-columns:1fr 1fr 1fr;gap:8px;margin-top:14px;display:grid}.exam .link{margin:10px auto 0;display:block}.explain.none{background:var(--warn-soft)}.result-list details summary{cursor:pointer;gap:10px;list-style:none;display:flex}.result-list details summary::-webkit-details-marker{display:none}.result-list li{display:block}.result-stem{margin:10px 0 4px;font-weight:600}.print-root{display:none}@media print{body.printing #root{display:none}body.printing .print-root{display:block}body{color:#000;background:#fff}.print-root{font-family:Georgia,Times New Roman,Noto Serif KR,serif;font-size:11pt;line-height:1.5}.print-root h1{margin:0 0 4pt;font-size:16pt}.print-meta{color:#555;margin:0 0 12pt;font-size:9pt}.print-q{break-inside:avoid;margin:0 0 14pt}.print-q h2{margin:0 0 6pt;font-size:11.5pt}.print-q h2 small{color:#666;font-weight:400}.print-root .passage{background:#fff;border:1px solid #999;padding:8pt;font-size:10.5pt;line-height:1.6}.print-options{margin:6pt 0 0;padding:0;list-style:none}.print-options li{margin:2pt 0}.print-note{color:#444;margin:4pt 0;font-size:9.5pt}.print-answer{border-top:1px dashed #999;margin-top:8pt;padding-top:6pt;font-size:10pt}.print-answer p{margin:3pt 0}.print-answer ul{margin:4pt 0;padding-left:14pt;list-style:none}.print-root .picture,.print-root .chart{break-inside:avoid;background:#fff;border:1px solid #999}.print-root .picture li{background:#fff;border-color:#bbb}.print-root .chart .tick,.print-root .chart .axis,.print-root .chart .value{fill:#000}.answer-table{border-collapse:collapse;width:100%;margin:0 0 14pt}.answer-table th,.answer-table td{text-align:center;border:1px solid #999;padding:3pt;font-size:10pt}}.score{margin:6px 0 14px;font-size:1.4rem}.score strong{color:var(--primary);font-size:2rem}.result-list{gap:6px;margin:0;padding:0;list-style:none;display:grid}.result-list li{background:var(--bg);border-radius:8px;gap:10px;padding:8px 10px;display:flex}.result-list li.ok .mark-icon{color:var(--good);font-weight:700}.result-list li.ng .mark-icon{color:var(--bad);font-weight:700}.wrong-list{gap:10px;margin:14px 0 0;padding:0;list-style:none;display:grid}.wrong-list li{border:1px solid var(--line);border-radius:10px;padding:12px}.wrong-list .preview{color:var(--muted);margin:6px 0 10px;font-size:.92rem}.row{align-items:center;gap:12px;display:flex}.course-switch{grid-template-columns:1fr 1fr;gap:8px;margin-bottom:12px;display:grid}.course-switch button{text-align:left;background:var(--card);border:1px solid var(--line);border-radius:10px;gap:2px;padding:10px 12px;display:grid}.course-switch button strong{font-size:1rem}.course-switch button span{color:var(--muted);font-size:.8rem}.course-switch button.on{border-color:var(--primary);background:var(--primary-soft)}.course-switch button.on strong{color:var(--primary)}