:root{--background:#f4f6fa;--foreground:#17243d;--primary:#183d77;--border:#dce3ed;--card:#fff;--muted:#67758b;--ring:#2c64bb;--radius:12px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}*{box-sizing:border-box}body{background:var(--background);color:var(--foreground);margin:0;font-family:Arial,Noto Sans KR,Malgun Gothic,sans-serif;font-size:16px;line-height:1.6}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.5}a{color:inherit;text-decoration:none}header{background:#fff;border-bottom:1px solid #dce3ed;justify-content:space-between;align-items:center;height:86px;padding:0 max(32px,50vw - 600px);display:flex}.brand{align-items:center;gap:12px;display:flex}.brand b{letter-spacing:-1px;font-size:23px}.brand-icon{color:#fff;background:#183d77;border-radius:10px;padding:10px}.brand-sub{color:#788398;border-left:1px solid #dce3ed;margin-left:10px;padding-left:20px;font-size:14px}.header-note{color:#6d788a;font-size:14px}main{max-width:1200px;margin:auto;padding:44px 0 20px}.page-heading{justify-content:space-between;align-items:center;margin-bottom:32px;display:flex}.eyebrow{letter-spacing:2px;color:#406396;font-size:12px;font-weight:700}h1{letter-spacing:-1.2px;margin:8px 0;font-size:32px;font-weight:700}h2{font-size:18px;font-weight:700}.page-heading p{color:#6d788a;margin-top:8px}.total-stamp{border-left:2px solid #dce3ed;align-items:center;gap:14px;padding-left:25px;display:flex}.total-stamp strong{font-size:40px;font-weight:400;line-height:1}.total-stamp span{color:#788398;font-size:14px}.workspace{grid-template-columns:285px minmax(0,1fr);align-items:start;gap:24px;display:grid}aside,.main-panel{background:#fff;border:1px solid #dce3ed;border-radius:16px}aside{padding:26px 24px}.aside-title{align-items:center;gap:10px;margin-bottom:26px;display:flex}.select-label{flex-direction:column;gap:8px;margin-bottom:22px;font-size:14px;font-weight:600;display:flex}select{background:#fff!important;border:1px solid #dce3ed!important;border-radius:7px!important;height:44px!important;padding-left:12px!important;font-size:15px!important}.range-count{color:#788398;border-top:1px solid #edf0f5;justify-content:space-between;align-items:center;margin:30px 0 18px;padding-top:22px;font-size:14px;display:flex}.range-count b{color:#183d77;font-size:27px}.range-count small{font-size:14px;font-weight:400}.primary{color:#fff!important;background:#183d77!important;border-radius:8px!important;min-height:46px!important;padding:0 24px!important;font-weight:600!important}.primary:hover{background:#112f60!important}.start-button{width:100%}.micro{color:#7a8596;margin-top:10px;font-size:12px}.aside-footer{color:#758299;align-items:flex-start;gap:10px;margin-top:36px;font-size:13px;display:flex}.aside-footer span{margin-top:5px;font-size:12px;display:block}.main-panel{min-height:560px;padding:30px}.section-caption{align-items:center;gap:12px;margin-bottom:24px;display:flex}.section-caption>span{color:#6c7e96;font-size:13px;font-weight:700}.mode-grid{grid-template-columns:1fr 1fr;gap:14px;display:grid}.mode-card{text-align:left;background:#fff;border:1px solid #dce3ed;border-radius:10px;gap:12px;min-height:120px;padding:22px 16px;transition:border-color .15s,background .15s;display:flex;position:relative}.mode-card:hover{border-color:#7895bf}.mode-card.selected{background:#eff5ff;border:1.5px solid #204e93;padding:21.5px 15.5px}.mode-number{color:#8291a6;margin-top:3px;font-size:13px}.mode-copy{padding-right:12px}.mode-copy b{margin-bottom:7px;font-size:16px;font-weight:700;display:block}.mode-copy>span{color:#6d788a;font-size:13px;line-height:1.7;display:block}.radio-mark{border:1px solid #b9c5d5;border-radius:50%;justify-content:center;align-items:center;width:16px;height:16px;display:flex;position:absolute;top:15px;right:12px}.selected .radio-mark{color:#fff;background:#204e93;border-color:#204e93}.practice-note{border-top:1px solid #e8edf4;margin-top:28px;padding-top:22px;font-size:14px}.practice-note p{color:#6d788a;margin-top:6px}.practice-note>span{color:#8291a6;margin-top:8px;font-size:13px;display:block}.test-top{color:#6d788a;justify-content:space-between;align-items:center;font-size:14px;display:flex}.mode-pill{color:#1c4e91;background:#eef4ff;border-radius:5px;padding:5px 11px;font-weight:600}.progress-track{background:#edf1f7;border-radius:5px;height:5px;margin:18px 0 28px;overflow:hidden}.progress-track>div{background:#28589f;height:100%;transition:width .3s}.answer-grid{grid-template-columns:1fr 1fr;gap:22px;display:grid}.answer-field.full{grid-column:1/-1}.answer-field>label{margin-bottom:9px;font-size:14px;font-weight:600;display:block}.given,.input-tag{color:#7c8aa0;margin-left:5px;font-size:12px;font-weight:400}.given-value{background:#f7f9fc;border:1px solid #e4e9f1;border-radius:8px;min-height:48px;padding:12px 15px;font-weight:500}.passage{border-left:3px solid #2d5f9f;padding:22px;font-size:18px;font-weight:400;line-height:1.95}.answer-field input,.answer-field textarea{background:#fff;border:1px solid #cbd5e3;border-radius:8px;width:100%;padding:12px;font-size:16px}.answer-field input{height:48px}.answer-field textarea{resize:vertical;line-height:1.9}.answer-field input:focus,.answer-field textarea:focus{outline-offset:2px;outline:2px solid #7b9dcc}.reference-input{grid-template-columns:1fr auto 1.7fr;align-items:center;gap:10px;display:grid}.test-actions{align-items:center;gap:12px;margin-top:26px;display:flex}.test-actions>span{color:#8995a6;margin-left:auto;font-size:12px}.title-hint{background:#f1f5fb;border-radius:8px;margin-bottom:24px;padding:18px 20px}.title-hint span,.title-hint small,.group-hint{color:#708099;font-size:14px}.title-hint h2{margin:5px 0;font-size:24px}.group-hint{margin-bottom:20px}.feedback{background:#fff6f3;border:1px solid #efdad1;border-radius:10px;margin-top:24px;padding:20px}.feedback.success{background:#eff8f6;border-color:#c7e2d8}.feedback h3{margin-bottom:14px;font-size:17px;font-weight:700}.feedback-row{gap:10px;margin:10px 0;display:flex}.feedback-row>span{padding-top:5px}.feedback-row small{color:#788398;font-size:12px}.feedback-row p{line-height:1.8}.correct{color:#278060}.incorrect{color:#b5553e}.notice{color:#96543d;background:#fff5e9;border-radius:6px;margin-top:16px;padding:12px;font-size:14px}.results{text-align:center;padding-top:15px}.results h2{margin-top:14px;font-size:26px}.score{margin:20px 0 0}.score strong{letter-spacing:-4px;color:#183d77;font-size:76px;line-height:1.2}.score>span{color:#9ba7b8;margin-left:10px;font-size:26px}.results>p{color:#718096}.result-actions{flex-wrap:wrap;justify-content:center;gap:12px;margin:28px 0;display:flex}.result-list{text-align:left;border-top:1px solid #e4e9f1;max-height:390px;overflow:auto}.result-list>div{border-bottom:1px solid #edf1f7;align-items:center;gap:12px;padding:15px 0;display:flex}.result-list small{color:#8491a4;font-size:12px;display:block}.result-list b{color:#708099;margin-left:auto;font-size:13px}footer{color:#8491a4;justify-content:space-between;margin-top:28px;padding:0 3px;font-size:12px;display:flex}@media (width<=1260px){main{padding:36px 28px 20px}}@media (width<=800px){header{height:70px;padding:0 20px}.header-note,.total-stamp{display:none}.brand-sub{font-size:12px}main{padding:26px 16px}h1{font-size:25px}.page-heading p{font-size:14px}.workspace{grid-template-columns:1fr}.aside-footer{display:none}aside{grid-template-columns:1fr 1fr;gap:0 16px;padding:20px;display:grid}.aside-title{grid-column:1/-1;margin-bottom:18px}.range-count{border:0;margin:0 0 16px;padding:0}.start-button,.micro{grid-column:1/-1}.main-panel{min-height:0;padding:22px 18px}.mode-grid{gap:10px}.mode-card{gap:7px;padding:20px 12px}.mode-card.selected{padding:19.5px 11.5px}.mode-number{display:none}.mode-copy b{font-size:15px}.mode-copy>span{font-size:13px}footer{flex-direction:column;gap:6px}.answer-grid{gap:18px 12px}.test-actions{flex-wrap:wrap}.test-actions>span{width:100%;margin:0}.passage{font-size:17px}.page-heading{margin-bottom:22px}}@media (prefers-reduced-motion:reduce){*{transition:none!important}}.diff-pair{gap:10px;margin-top:6px;display:grid}.diff-pair>div{background:#fff;border:1px solid #dce3ed;border-radius:6px;padding:10px 12px}.diff-pair b{color:#5d6b80;font-size:13px}.diff-pair p{white-space:pre-wrap;overflow-wrap:anywhere}.diff-pair em{color:#7c889a;font-size:14px}.diff-actual{color:#922f22;text-underline-offset:4px;background:#ffdfd9;-webkit-text-decoration:underline wavy;text-decoration:underline wavy}.diff-expected{color:#16553c;background:#d8f2e6;font-weight:700}.diff-legend{color:#69788d;margin-bottom:14px;font-size:13px}.feedback-row>div{flex:1;min-width:0}