.quiz-option.selected{background:rgba(255,255,255,.4);border:2px solid white}.result-box.show{display:block;animation:slideDown .5s ease}.reveal-button{background:#ff6b6b;color:white;padding:15px 30px;border:none;border-radius:25px;font-size:1.1em;cursor:pointer;transition:all .3s ease;display:block;margin:20px auto;box-shadow:0 4px 15px rgba(255,107,107,.4)}.reveal-button:hover{background:#ee5a52;transform:translateY(-2px);box-shadow:0 6px 20px rgba(255,107,107,.6)}.water-cup.filled{background:rgba(255,255,255,.9)}.myth-card.revealed .truth-reveal{display:block;animation:fadeIn .5s ease}.checkpoint.completed{border-left-color:#4ecdc4;background:#e8f5e9}.time-slot.correct{border-color:#4caf50;background:#e8f5e9}.time-slot.incorrect{border-color:#f44336;background:#ffebee}