.bkbg-card-stack-wrap {
    box-sizing: border-box;
}

.bkbg-cardstack-outer {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.bkbg-cardstack {
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

/* Ghost cards (JS applies transforms) */
.bkbg-cardstack-ghost {
    pointer-events: none;
}

/* Active (front) card */
.bkbg-cardstack-card.is-active {
    position: relative !important;
    z-index: 10 !important;
}
.bkbg-cardstack-card:not(.is-active) {
    pointer-events: none;
}

/* ── Fan hover ── */
.bkbg-cardstack[data-style="fan"]:hover .bkbg-cardstack-ghost:nth-child(1) {
    opacity: 0.85;
}
.bkbg-cardstack[data-style="fan"]:hover .bkbg-cardstack-ghost:nth-child(2) {
    opacity: 0.65;
}

/* ── Animate in ── */
.bkbg-cardstack[data-animate="1"]  {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.55s ease, transform 0.55s ease;
}
.bkbg-cardstack[data-animate="1"].is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ── Editor: always show regardless of animation state ── */
.editor-styles-wrapper .bkbg-cardstack[data-animate="1"] {
    opacity: 1 !important;
    transform: none !important;
}

/* ── Nav dots ── */
.bkbg-cardstack-dots {
    display: flex;
    gap: 8px;
    align-items: center;
}
.bkbg-cardstack-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    border: none;
    padding: 0;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
    background: #d1d5db;
}
.bkbg-cardstack-dot.is-active {
    transform: scale(1.3);
}

/* ── Card styles ── */
.bkbg-cardstack-title {
    word-break: break-word;
    font-family: var(--bkbg-cst-tt-font-family, inherit);
    font-size: var(--bkbg-cst-tt-font-size-d, 20px);
    font-weight: var(--bkbg-cst-tt-font-weight, 700);
    line-height: var(--bkbg-cst-tt-line-height-d, 1.2);
    text-transform: var(--bkbg-cst-tt-text-transform, none);
    font-style: var(--bkbg-cst-tt-font-style, normal);
    text-decoration: var(--bkbg-cst-tt-text-decoration, none);
    letter-spacing: var(--bkbg-cst-tt-letter-spacing-d, normal);
    word-spacing: var(--bkbg-cst-tt-word-spacing-d, normal);
}
.bkbg-cardstack-desc {
    word-break: break-word;
    font-family: var(--bkbg-cst-td-font-family, inherit);
    font-size: var(--bkbg-cst-td-font-size-d, 15px);
    font-weight: var(--bkbg-cst-td-font-weight, inherit);
    line-height: var(--bkbg-cst-td-line-height-d, 1.65);
    text-transform: var(--bkbg-cst-td-text-transform, none);
    font-style: var(--bkbg-cst-td-font-style, normal);
    text-decoration: var(--bkbg-cst-td-text-decoration, none);
    letter-spacing: var(--bkbg-cst-td-letter-spacing-d, normal);
    word-spacing: var(--bkbg-cst-td-word-spacing-d, normal);
}
.bkbg-cardstack-avatar img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.bkbg-cardstack-tag {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

/* Click-cycle flash */
.bkbg-cardstack-card.is-exit {
    animation: bkbg-card-exit 0.25s ease forwards;
}
.bkbg-cardstack-card.is-enter {
    animation: bkbg-card-enter 0.3s ease forwards;
}
@keyframes bkbg-card-exit {
    from { opacity: 1; transform: scale(1); }
    to   { opacity: 0; transform: scale(0.92) rotate(-3deg); }
}
@keyframes bkbg-card-enter {
    from { opacity: 0; transform: scale(0.96) translateY(8px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}

/* ── Typography responsive ── */
@media (max-width: 1024px) {
    .bkbg-cardstack-title {
        font-size: var(--bkbg-cst-tt-font-size-t, var(--bkbg-cst-tt-font-size-d, 20px));
        line-height: var(--bkbg-cst-tt-line-height-t, var(--bkbg-cst-tt-line-height-d, 1.2));
        letter-spacing: var(--bkbg-cst-tt-letter-spacing-t, var(--bkbg-cst-tt-letter-spacing-d, normal));
        word-spacing: var(--bkbg-cst-tt-word-spacing-t, var(--bkbg-cst-tt-word-spacing-d, normal));
    }
    .bkbg-cardstack-desc {
        font-size: var(--bkbg-cst-td-font-size-t, var(--bkbg-cst-td-font-size-d, 15px));
        line-height: var(--bkbg-cst-td-line-height-t, var(--bkbg-cst-td-line-height-d, 1.65));
        letter-spacing: var(--bkbg-cst-td-letter-spacing-t, var(--bkbg-cst-td-letter-spacing-d, normal));
        word-spacing: var(--bkbg-cst-td-word-spacing-t, var(--bkbg-cst-td-word-spacing-d, normal));
    }
}
@media (max-width: 767px) {
    .bkbg-cardstack-title {
        font-size: var(--bkbg-cst-tt-font-size-m, var(--bkbg-cst-tt-font-size-t, var(--bkbg-cst-tt-font-size-d, 20px)));
        line-height: var(--bkbg-cst-tt-line-height-m, var(--bkbg-cst-tt-line-height-t, var(--bkbg-cst-tt-line-height-d, 1.2)));
        letter-spacing: var(--bkbg-cst-tt-letter-spacing-m, var(--bkbg-cst-tt-letter-spacing-t, var(--bkbg-cst-tt-letter-spacing-d, normal)));
        word-spacing: var(--bkbg-cst-tt-word-spacing-m, var(--bkbg-cst-tt-word-spacing-t, var(--bkbg-cst-tt-word-spacing-d, normal)));
    }
    .bkbg-cardstack-desc {
        font-size: var(--bkbg-cst-td-font-size-m, var(--bkbg-cst-td-font-size-t, var(--bkbg-cst-td-font-size-d, 15px)));
        line-height: var(--bkbg-cst-td-line-height-m, var(--bkbg-cst-td-line-height-t, var(--bkbg-cst-td-line-height-d, 1.65)));
        letter-spacing: var(--bkbg-cst-td-letter-spacing-m, var(--bkbg-cst-td-letter-spacing-t, var(--bkbg-cst-td-letter-spacing-d, normal)));
        word-spacing: var(--bkbg-cst-td-word-spacing-m, var(--bkbg-cst-td-word-spacing-t, var(--bkbg-cst-td-word-spacing-d, normal)));
    }
}

@media (max-width: 640px) {
    .bkbg-cardstack {
        width: 100% !important;
        max-width: 100%;
    }
    .bkbg-cardstack-card {
        width: 100% !important;
    }
}