.space {
    color: #666;
    opacity: 0.7;
}

.space.correct {
    color: #4CAF50;
    opacity: 1;
}

.space.incorrect {
    color: #f44336;
    opacity: 1;
}

.space.current {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
}