.card-stack {
    position: relative;
    width: 320px;
    height: 600px;
    touch-action: pan-y;
}

.card {
    background-image: url("/backgrounds/repeating_logo_807970.png");
    background-size: 100%;
    position: absolute;
    border: solid #575656 1px;
    inset: 0;
    width: 100%;
    height: 100%;
    border-radius: 14px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    transition: transform 0.35s ease, opacity 0.35s ease;
    cursor: pointer;
    z-index: calc(100 - var(--i));
}

.card h3 {
    padding-left: 7px;
}

.card img {
    width: 100%;
    height: 50%;
    object-fit: cover;
}

.card p {
    padding: 16px;
    font-size: 8px;
    line-height: 1.4;
}

.card-progress {
    margin-top: 12px;
    text-align: center;
    font-size: 0.9rem;
    font-family: monospace;
    color: #ccc;
    opacity: 0.85;
    letter-spacing: 0.08em;
}


/* Slight stacking offset for depth */
.card:nth-child(1) {
    transform: translate(0px, 0px);
    /* transform: translateX(0px); */
}

.card:nth-child(2) {
    transform: translate(10px, 10px) scale(0.98);
    /* transform: translateX(10px) scale(0.98); */
}

.card:nth-child(3) {
    transform: translate(20px, 20px) scale(0.96);
    /* transform: translateX(20px) scale(0.96); */
}

.card:nth-child(4) {
    transform: translate(30px, 30px) scale(0.94);
    /* transform: translateX(30px) scale(0.94); */
}

.shuffle {
    display: inherit;
    padding: 10px;
}

#resetDeck {
    margin-top: 20px;
    padding: 10px 18px;
    font-size: 1.5em;
    border-radius: 8px;
    border: none;
    background: #333;
    cursor: pointer;
}

#resetDeck:hover {
    background-color: #555;
}