.card-img {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
}

.card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.overlay-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);

    color: #fff;
    font-weight: 600;
    font-size: 1rem;
    text-align: center;

    /* optional đẹp hơn */
    background: rgba(0,0,0,0.4);
    padding: 0.375rem 0.75rem;
    border-radius: 0.375rem;
}
/* title */
.card-title {
    text-transform: uppercase;
    letter-spacing: 0.03125rem;
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.4;
    z-index: 2;
}