.lesson-mobile-outline{display:none}.timer-caption{font-size:10px;color:#627468}.timer{flex-wrap:wrap;justify-content:flex-end}.timer button{min-height:44px;font-size:12px}
.lesson-first-phrase{background:#eef3e5;border:1px solid #dbe6ce;border-radius:16px;padding:24px;margin:24px 0}
.lesson-panel .lesson-first-phrase .phrase-instruction{font-size:12px;margin:0 0 16px;color:#4d6651}
.lesson-first-phrase .reading-phrase{display:block}.lesson-first-phrase .topic-ko{font-size:32px}.lesson-first-phrase .topic-en{display:block;font-size:17px;margin-top:10px;color:#425b49}
.syllable-detail{margin-top:18px;border-top:1px solid #cbd8bf;padding-top:4px}.syllable-detail summary{font-size:13px;line-height:1.6;min-height:44px;padding:12px 0;cursor:pointer}.lesson-panel .syllable-detail p{font-size:21px;line-height:1.8;letter-spacing:2px;padding:8px 0}
.quiz-progress{display:flex;flex-direction:column;gap:7px;padding:18px 20px;margin:24px 0 28px;background:#f0ecf7;border:1px solid #ddd5ea;border-radius:13px;color:#4b465b}
.quiz-progress strong{font-size:16px;font-weight:600}.quiz-progress span{font-size:12px;line-height:1.6}
.lesson-panel .lesson-question{margin:0 0 22px;padding:24px;border:1px solid #dbe3d4;border-radius:15px;background:#fffef9}
.question-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px;font-size:10px;font-weight:700;letter-spacing:1px;color:#63725c}
.question-state{padding:6px 9px;border-radius:20px;letter-spacing:0;font-size:11px;line-height:1.4;flex-shrink:0}.question-state.is-correct{color:#284e39;background:#e3edd8}.question-state.needs-retry{color:#754b2d;background:#f7ead9}
.lesson-question h3{font-size:19px;line-height:1.6;letter-spacing:-.2px;margin:0 0 20px}
.quiz-choices{display:grid;gap:10px}.lesson-panel .lesson-question .quiz-option{display:grid;grid-template-columns:30px minmax(0,1fr) 20px;align-items:center;gap:12px;min-height:56px;width:100%;margin:0;padding:13px 15px;border:1px solid #cbd7c2;border-radius:11px;background:#fff;color:#294634;text-align:left;font-size:16px;line-height:1.75}
.option-letter{display:grid;place-items:center;width:28px;height:28px;border:1px solid #dae2d4;border-radius:8px;font-size:12px;font-weight:700;color:#65745c;background:#f6f8f1}.option-copy{min-width:0;overflow-wrap:anywhere}.option-state{font-size:20px;font-weight:700;text-align:center}
.lesson-panel .lesson-question .quiz-option:hover{border-color:#69865c;background:#f3f6ee}.lesson-panel .lesson-question .quiz-option.selected{background:#eaf2e0;border:2px solid #527746;padding:12px 14px;color:#284a32}.lesson-panel .lesson-question .quiz-option.wrong{background:#fcf1e4;border:2px solid #a77243;padding:12px 14px;color:#704623}
.lesson-question .feedback{margin-top:16px;padding:16px 18px;border-radius:10px;font-size:14px;border-left:3px solid #527746;background:#edf3e6;color:#304a36}.lesson-question .feedback-retry{border-color:#a77243;background:#fbefe0;color:#704623}.lesson-question .feedback strong{display:block;font-size:15px}.lesson-question .feedback p{font-size:14px;line-height:1.8;margin:5px 0 0;color:inherit}
.lesson-steps>button[aria-current="step"]{box-shadow:inset 3px 0 #426a37}
@media(max-width:650px){
 .lesson-header{gap:8px;align-items:center}.lesson-header .back-link{font-size:11px}.timer-caption{display:none}.timer{gap:4px}.timer button{font-size:11px;padding:5px}.timer>span{font-size:11px}
 .lesson-layout>.lesson-steps{display:none}
 .lesson-mobile-outline{display:block;margin:22px 0 18px;border:1px solid #d0ddc4;border-radius:12px;background:#edf3e4;color:#294f41}
 .lesson-mobile-outline>summary{display:flex;justify-content:space-between;align-items:center;gap:12px;min-height:64px;padding:13px 16px;cursor:pointer;font-size:10px;letter-spacing:.8px;list-style:none}
 .lesson-mobile-outline>summary::-webkit-details-marker{display:none}
 .lesson-mobile-outline>summary strong{display:block;font-size:15px;line-height:1.5;letter-spacing:0;margin-top:3px}
 .outline-action{font-size:11px;letter-spacing:0;white-space:nowrap}.outline-action>span{margin-left:4px;font-size:16px}
 .lesson-mobile-outline[open]>summary{border-bottom:1px solid #d0ddc4}.lesson-mobile-outline .lesson-steps{display:grid;grid-template-columns:1fr;gap:4px;padding:10px;overflow:visible;margin:0}
 .lesson-mobile-outline .lesson-steps>button{display:flex;gap:12px;font-size:14px;min-height:52px;padding:10px 12px;text-align:left;white-space:normal;color:#294f41}.lesson-mobile-outline .lesson-steps>button div{display:block}.lesson-mobile-outline .lesson-steps>button small{display:block;font-size:11px;margin-top:3px}
 .lesson-mobile-outline .lesson-steps>button:disabled{opacity:1;color:#718068;background:transparent}.lesson-mobile-outline .lesson-steps>button.active{background:#dce9ce}
 .lesson-mobile-outline>p{padding:0 20px 14px;font-size:12px;line-height:1.7;color:#62725b}
 .lesson-panel .lesson-question{padding:18px 14px}.lesson-question h3{font-size:17px}.lesson-panel .lesson-question .quiz-option{grid-template-columns:25px minmax(0,1fr) 16px;gap:9px;padding:12px 10px;font-size:15px}.option-letter{width:25px;height:27px}.lesson-panel .lesson-question .quiz-option.selected,.lesson-panel .lesson-question .quiz-option.wrong{padding:11px 9px}
 .question-heading{font-size:9px;gap:8px}.question-state{font-size:10px}.lesson-first-phrase{padding:20px 16px}.lesson-first-phrase .topic-ko{font-size:29px}.quiz-progress{padding:16px}.quiz-progress strong{font-size:15px}
}