.quiz-container{max-width:800px;margin:20px auto;position:relative;padding-top:40px}.sticky-header{position:sticky;top:0;background:#fff;z-index:100;padding:10px 0;display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;width:100%}.progress-container{width:80%}.progress-bar{width:100%;height:8px;background-color:#f0f0f0;border-radius:4px}.progress{width:0%;height:100%;background-color:#24C789;border-radius:4px;transition:width 0.5s ease-in-out}.lives{display:flex;align-items:center;gap:5px}.heart-icon{width:24px;height:24px}.lives-count{font-size:18px;font-weight:700}.completion-message{display:none;text-align:center;font-size:24px;font-weight:700;margin:40px 0;color:#24C789}.quiz-question{background:#fff;padding:10px;border-radius:8px;margin-bottom:20px}.quiz-question h3{margin-top:0;margin-bottom:15px;color:#333}.quiz-answers{display:flex;flex-direction:column;gap:10px}.quiz-answer{display:block;padding:15px;border:2px solid #ddd;border-radius:8px;cursor:pointer;transition:all 0.3s ease;background:#fff}.quiz-answer:hover{background-color:#f8f9fa;transform:translateY(-2px);box-shadow:0 2px 4px rgba(0,0,0,.1)}.quiz-answer.correct{border-color:#24C789;background-color:rgba(36,199,137,.1);pointer-events:none}.quiz-answer.incorrect{border-color:#dc3545;background-color:rgba(220,53,69,.1);pointer-events:none}.quiz-answer.hiding{transition:all 0.5s ease;opacity:0;height:0;margin:0;padding:0;overflow:hidden}.quiz-answers.image-grid{display:flex;flex-direction:row;justify-content:left;align-items:center;gap:15px;width:100%;margin:0 auto}.image-answer{width:200px;flex-shrink:0;cursor:pointer;padding:5px;border:2px solid #ddd;border-radius:4px;transition:all 0.3s ease}.image-answer img{width:100%;height:150px;object-fit:cover;display:block}.image-answer:hover{border-color:#007bff}.image-answer.correct{border-color:#28a745}.image-answer.incorrect{border-color:#dc3545}