.shock-reveal.visible{transform:translateY(0);opacity:1}.quiz-option.selected{background:#4caf50;border-color:#4caf50;color:white}.quiz-option.incorrect{background:#f44336;border-color:#f44336;color:white}.quiz-result.show{opacity:1;transform:translateY(0)}.quiz-result.correct{background:#d4edda;color:#155724;border:1px solid #c3e6cb}.quiz-result.incorrect{background:#f8d7da;color:#721c24;border:1px solid #f5c6cb}.hidden{display:none}