.bkbg-cnv-app { display: block; }

.bkbg-cnv-wrap {
    box-sizing: border-box;
    font-family: inherit;
    overflow: hidden;
}

/* ── Styles ── */
.bkbg-cnv-card {
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,.06);
    border: 1px solid #e2e8f0;
}
.bkbg-cnv-banner {
    border-left: 4px solid #6366f1;
    border-radius: 8px;
}
.bkbg-cnv-minimal {
    border-top: 2px solid #6366f1;
    padding-top: 16px;
}

/* ── Header ── */
.bkbg-cnv-header {
    padding: 16px 20px;
}
.bkbg-cnv-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 6px;
    flex-wrap: wrap;
}
.bkbg-cnv-pill {
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}
.bkbg-cnv-series {
    font-size: 13px;
}
.bkbg-cnv-current-title {
    font-family: var(--bkbg-cnv-tt-font-family, inherit);
    font-size: var(--bkbg-cnv-tt-font-size-d, 17px);
    font-weight: var(--bkbg-cnv-tt-font-weight, 700);
    line-height: var(--bkbg-cnv-tt-line-height-d, 1.3);
    text-transform: var(--bkbg-cnv-tt-text-transform, none);
    font-style: var(--bkbg-cnv-tt-font-style, normal);
    text-decoration: var(--bkbg-cnv-tt-text-decoration, none);
    letter-spacing: var(--bkbg-cnv-tt-letter-spacing-d, normal);
    word-spacing: var(--bkbg-cnv-tt-word-spacing-d, normal);
    margin: 0;
}
.bkbg-cnv-progress-wrap {
    margin-top: 10px;
}
.bkbg-cnv-progress-bar {
    border-radius: 4px;
    height: 6px;
    overflow: hidden;
}
.bkbg-cnv-progress-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.3s;
}
.bkbg-cnv-progress-label {
    font-size: 11px;
    margin-top: 4px;
    opacity: 0.8;
}

/* ── Nav row ── */
.bkbg-cnv-nav {
    display: flex;
    gap: 10px;
    padding: 14px 20px;
    flex-wrap: wrap;
}
.bkbg-cnv-btn {
    flex: 1;
    min-width: 160px;
    padding: 10px 14px;
    border-radius: 6px;
    font-size: 13px;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    gap: 2px;
    transition: opacity 0.2s;
}
.bkbg-cnv-btn:hover {
    opacity: 0.88;
}
.bkbg-cnv-btn-label {
    font-size: 11px;
    opacity: 0.7;
}
.bkbg-cnv-btn-title {
    font-weight: 600;
}
.bkbg-cnv-btn-next {
    text-align: right;
}

/* ── Chapter list ── */
.bkbg-cnv-summary {
    padding: 12px 20px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    user-select: none;
}
.bkbg-cnv-summary::-webkit-details-marker { display: none; }
.bkbg-cnv-arrow {
    transition: transform 0.25s;
    font-style: normal;
    display: inline-block;
}
details[open] .bkbg-cnv-arrow {
    transform: rotate(180deg);
}
.bkbg-cnv-list {
    margin: 0;
    padding: 8px 0;
    list-style: none;
}
.bkbg-cnv-list-item {
    padding: 8px 20px 8px 44px;
    position: relative;
    font-size: 13px;
    transition: background 0.2s;
}
.bkbg-cnv-list-item:hover {
    opacity: 0.85;
}
.bkbg-cnv-item-num {
    position: absolute;
    left: 20px;
    font-weight: 700;
}
.bkbg-cnv-item-link {
    text-decoration: none;
}
.bkbg-cnv-item-link:hover {
    text-decoration: underline;
}
.bkbg-cnv-current-badge {
    margin-left: 8px;
    font-size: 11px;
    padding: 1px 7px;
    border-radius: 10px;
    font-weight: 600;
}

/* ── Typography responsive ── */
@media (max-width: 1024px) {
    .bkbg-cnv-current-title {
        font-size: var(--bkbg-cnv-tt-font-size-t, var(--bkbg-cnv-tt-font-size-d, 17px));
        line-height: var(--bkbg-cnv-tt-line-height-t, var(--bkbg-cnv-tt-line-height-d, 1.3));
        letter-spacing: var(--bkbg-cnv-tt-letter-spacing-t, var(--bkbg-cnv-tt-letter-spacing-d, normal));
        word-spacing: var(--bkbg-cnv-tt-word-spacing-t, var(--bkbg-cnv-tt-word-spacing-d, normal));
    }
}
@media (max-width: 767px) {
    .bkbg-cnv-current-title {
        font-size: var(--bkbg-cnv-tt-font-size-m, var(--bkbg-cnv-tt-font-size-t, var(--bkbg-cnv-tt-font-size-d, 17px)));
        line-height: var(--bkbg-cnv-tt-line-height-m, var(--bkbg-cnv-tt-line-height-t, var(--bkbg-cnv-tt-line-height-d, 1.3)));
        letter-spacing: var(--bkbg-cnv-tt-letter-spacing-m, var(--bkbg-cnv-tt-letter-spacing-t, var(--bkbg-cnv-tt-letter-spacing-d, normal)));
        word-spacing: var(--bkbg-cnv-tt-word-spacing-m, var(--bkbg-cnv-tt-word-spacing-t, var(--bkbg-cnv-tt-word-spacing-d, normal)));
    }
}

@media (max-width: 600px) {
    .bkbg-cnv-btn {
        min-width: 100%;
    }
}