#history-foods-wrapper .option-btn.selected{background:#c0392b;color:white}#history-foods-wrapper .result-box.show{display:block;animation:fadeIn .5s ease}#history-foods-wrapper .hidden-content.show{display:block;animation:slideDown .5s ease}#history-foods-wrapper .quiz-option.correct{background:#2ecc71;color:white;border-color:#27ae60}#history-foods-wrapper .quiz-option.incorrect{background:#e74c3c;color:white;border-color:#c0392b}#history-foods-wrapper .timeline-slider{width:100%;margin:20px 0}#history-foods-wrapper .flip-card.flipped{transform:rotateY(180deg)}#history-foods-wrapper .checklist-item.checked{background:#2ecc71;color:white}#history-foods-wrapper .checklist-item.checked .checkbox{background:#fff;border-color:white;color:#2ecc71}