body.dark-mode{--bg:#111827;--surface:#1f2937;--text:#f1f5f9;--muted:#b6c2d4;--border:#344257;--primary:#a99bff;--primary-hover:#c1b7ff;--primary-soft:#2c2850;--success-soft:#153c31;--danger-soft:#4b2028;--shadow:0 7px 30px #0004;background:#111827;color:var(--text)}
body.dark-mode .topbar,body.dark-mode .mobile-nav{background:#1b2638eF}body.dark-mode .topbar-badge,body.dark-mode .icon-button,body.dark-mode .panel,body.dark-mode .lesson-card,body.dark-mode .reading-card,body.dark-mode .question-card,body.dark-mode .result-hero,body.dark-mode .empty-state,body.dark-mode .review-item,body.dark-mode .term-card,body.dark-mode .video-tile,body.dark-mode .source-row,body.dark-mode .transcript{background:var(--surface)}body.dark-mode .lesson-card.locked,body.dark-mode .answer-option.dim{background:#1a2433}body.dark-mode .lesson-card-foot,body.dark-mode .reset-area{border-color:var(--border)}body.dark-mode .lesson-card p,body.dark-mode .reading-card p,body.dark-mode .lesson-side p,body.dark-mode .tools-grid .panel p,body.dark-mode .term-card p,body.dark-mode .video-tile small,body.dark-mode .progress-row-main small{color:var(--muted)}body.dark-mode .answer-option,body.dark-mode .sim-choice{background:#202c3d;color:var(--text);border-color:var(--border)}body.dark-mode .answer-option:hover:not(:disabled){background:#2a254b}body.dark-mode .answer-letter,body.dark-mode .sim-result,body.dark-mode .review-answer{background:#293548;border-color:#45546b;color:var(--text)}body.dark-mode .feedback{color:#c8f2dc}body.dark-mode .feedback.bad{color:#ffd5d8}body.dark-mode .notice{background:#40351d;border-color:#735b2a;color:#ffe9a9}body.dark-mode .rule-strip,body.dark-mode .reading-bottom-cta{background:#2b2850;border-color:#49436f;color:#ded9ff}body.dark-mode .takeaway{background:#282344;border-color:#4b426b}body.dark-mode .takeaway p,body.dark-mode .reading-bottom-cta p{color:#d9d3ff}body.dark-mode .example-panel{background:#173c43;border-color:#29606a}body.dark-mode .example-panel p,body.dark-mode .example-panel h3{color:#c9f2f5}body.dark-mode .exercise-panel{background:#40371f;border-color:#6a592e}body.dark-mode .exercise-answer{color:#ffe6a0;border-color:#6a592e}body.dark-mode .progress-row,body.dark-mode .search-field{background:var(--surface);border-color:var(--border)}body.dark-mode .search-field input{color:var(--text)}body.dark-mode .q-dot{background:#334155;color:#d7e1ee}body.dark-mode .q-dot.current{background:#332d61;color:#d7cfff}body.dark-mode .skip-link{background:#1f2937;color:#fff}body.dark-mode .appearance-panel .lesson-icon{background:#2c2850;color:#d9d3ff;display:grid;place-items:center;font-size:24px}