.browse-mode-toggle{font:inherit;font-size:13px;line-height:1.4;min-height:44px;padding:10px 14px;border:1px solid var(--line,#d6ded5);border-radius:12px;background:var(--accent-soft,#eef4ef);color:var(--ink,#26392d);cursor:pointer}.browse-mode-description{font-size:12px;line-height:1.7;color:var(--muted,#607066);margin:0 0 14px}.subject[hidden],#topicNavigation[hidden]{display:none!important}.lesson-outline,.lesson-quiz{margin:24px 0 0;padding:22px;border:1px solid var(--line,#d6ded5);border-radius:16px;background:var(--surface,#fff)}.study-section-heading span{font-size:11px;font-weight:700;letter-spacing:.08em;color:var(--muted,#607066)}.study-section-heading h3{margin:8px 0;font-size:22px}.study-note{font-size:13px;line-height:1.7;color:var(--muted,#607066)}.lesson-outline details{padding:12px 0;border-bottom:1px solid var(--line,#d6ded5)}.lesson-outline summary{cursor:pointer;font-weight:600}.lesson-outline p,.lesson-outline li{line-height:1.8;font-size:14px}.lesson-outline li{margin-bottom:8px}.study-question{min-width:0;padding:18px 0;border:0;border-bottom:1px solid var(--line,#d6ded5);margin:15px 0}.study-question legend{font-weight:600;line-height:1.7;float:left;width:100%;margin-bottom:12px}.study-options{display:grid;gap:8px;clear:both}.study-option{display:flex;align-items:flex-start;gap:10px;font:inherit;text-align:left;line-height:1.6;padding:13px;border:1px solid var(--line,#d6ded5);border-radius:10px;background:var(--surface,#fff);color:var(--ink,#26392d);cursor:pointer;overflow-wrap:anywhere}.study-option>span{font-size:12px;background:var(--accent-soft,#eef4ef);border-radius:5px;min-width:25px;padding:2px;text-align:center}.study-option.selected{border-color:var(--accent,#357454);box-shadow:0 0 0 1px var(--accent,#357454)}.study-option.correct{background:var(--accent-soft,#eef4ef)}.study-option:disabled{opacity:1;cursor:default}.study-explanation{padding:16px;border-radius:10px;background:var(--accent-soft,#eef4ef);line-height:1.7;margin-top:12px}.study-explanation p{margin-bottom:0}.study-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.study-actions [role=status]{width:100%;font-size:14px}.study-actions button{min-height:44px}.browse-mode-toggle:focus-visible,.study-option:focus-visible{outline:3px solid var(--accent,#357454);outline-offset:3px}.daily-topic-path{font-size:12px;line-height:1.7;color:var(--muted,#607066);padding:10px 0}@media(max-width:760px){.browse-mode-toggle{max-width:100%;font-size:12px}.lesson-outline,.lesson-quiz{padding:16px}.study-option{font-size:14px}.study-section-heading h3{font-size:20px}}

.browse-mode-switch{display:inline-flex;gap:3px;padding:3px;border:1px solid var(--line,#d6ded5);border-radius:13px;background:var(--surface,#fff)}.browse-mode-switch .browse-mode-toggle{border:0;background:transparent;padding:8px 12px;min-height:38px;white-space:nowrap}.browse-mode-switch .browse-mode-toggle[aria-pressed="true"]{background:var(--accent-soft,#eef4ef);color:var(--accent,#357454);font-weight:700}