.card-container {
    width: 100%;
    max-width: 320px;      /* mantiene tamaņo en desktop */
    height: 200px;
    perspective: 1000px;
    margin: 0 auto;        /* centra */
}


.card-inner {
    width: 100%;
    height: 100%;
    transition: transform 0.6s ease;
    transform-style: preserve-3d;
    position: relative;
}

.card-inner.flipped {
    transform: rotateY(180deg);
}

.card-face {
    position: absolute;
    width: 100%;
    height: 100%;
    background: #393186;
    color: #fff;
    border-radius: 16px;
    padding: 16px;
    backface-visibility: hidden;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);

    /* CENTRADO REAL */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.card-front {
    transform: rotateY(0deg);
}

.card-back {
    transform: rotateY(180deg);
}

.logo-large {
    width: 90px;
    margin-bottom: 18px;
}

.card-id {
    font-size: 26px;
    letter-spacing: 3px;
    margin-top: 6px;
}

.pin-box {
    font-size: 22px;
    letter-spacing: 6px;
    margin-top: 6px;
}

.card-footer {
    font-size: 11px;
    position: absolute;
    bottom: 12px;
    width: 100%;
    text-align: center;
    opacity: 0.75;
}

.card-actions {
    text-align: center;
    margin-top: 12px;
}