.achievement-item {
    display: flex;
    align-items: center;
    padding: 15px;
    margin: 10px 0;
    border-radius: 8px;
    background-color: #f8f9fa;
    transition: all 0.3s ease;
}

.achievement-item.locked {
    opacity: 0.5;
    filter: grayscale(100%);
}

.achievement-item.achieved {
    background-color: #e8f5e9;
    border-left: 4px solid #4caf50;
}

.achievement-item img {
    margin-right: 15px;
    width: 30px;
    height: 30px;
}

.achievement-item.locked img {
    filter: grayscale(100%) opacity(0.5);
}

.achievement-item.achieved img {
    filter: invert(31%) sepia(98%) saturate(1946%) hue-rotate(201deg) brightness(96%) contrast(107%);
}

.achievement-info {
    display: flex;
    flex-direction: column;
}

.achievement-title {
    font-weight: bold;
    margin-bottom: 5px;
}

.achievement-description {
    font-size: 0.9em;
    color: #6c757d;
}

.achievement-progress {
    margin-left: auto;
    text-align: right;
}