.gem-grid {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
}

.gem-card {
    border: 1px solid #ccc;
    border-radius: 8px;
    padding: 16px;
    margin: 16px;
    width: 300px;
    box-sizing: border-box; /* added */
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.gem-card-img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 12px;
}