.quiz-container { border:1px solid #ddd; border-radius:6px; padding:0.75rem; margin:1rem 0; background:#fafafa; }
.quiz-question { font-weight:600; margin-bottom:0.5rem; }
.quiz-options { display:flex; flex-wrap:wrap; gap:0.5rem; }
.quiz-option { background:#fff; border:1px solid #ccc; padding:0.4rem 0.6rem; border-radius:4px; cursor:pointer; font-size:.85rem; }
.quiz-option.selected { background:#1976d2; color:#fff; border-color:#0d47a1; }
.quiz-box.correct { border-color:#2e7d32; }
.quiz-box.incorrect { border-color:#c62828; }
.quiz-feedback { margin-top:0.5rem; font-size:.85rem; }
.quiz-explanation { margin-top:0.25rem; opacity:0.85; }
.progress-box { background:#eee; padding:.75rem; border-radius:4px; margin-bottom:1rem; }
table#progress-table td, table#progress-table th { font-size:.8rem; }
.note { font-size:.75rem; color:#555; }