/* ================================================================
   Footnotes — bkbg-fn-*
   ================================================================ */

.bkbg-fn-block {
    padding: 20px 24px;
    box-sizing: border-box;
    font-family: var(--bkbg-fn-nt-font-family, inherit);
    font-size: var(--bkbg-fn-nt-font-size-d, 14px);
    font-weight: var(--bkbg-fn-nt-font-weight, 400);
    font-style: var(--bkbg-fn-nt-font-style, normal);
    text-decoration: var(--bkbg-fn-nt-text-decoration, none);
    text-transform: var(--bkbg-fn-nt-text-transform, none);
    line-height: var(--bkbg-fn-nt-line-height-d, 1.6);
    letter-spacing: var(--bkbg-fn-nt-letter-spacing-d, normal);
    word-spacing: var(--bkbg-fn-nt-word-spacing-d, normal);
}

/* ── Divider ─────────────────────────────────────────────────── */
.bkbg-fn-divider {
    border: none;
    border-top: 1px solid;
    margin: 0 0 16px;
    width: 60px;
}

/* ── Title ───────────────────────────────────────────────────── */
.bkbg-fn-block .bkbg-fn-title {
    margin-bottom: 12px;
    font-family: var(--bkbg-fn-tt-font-family, inherit);
    font-size: var(--bkbg-fn-tt-font-size-d, 16px);
    font-weight: var(--bkbg-fn-tt-font-weight, 600);
    font-style: var(--bkbg-fn-tt-font-style, normal);
    text-decoration: var(--bkbg-fn-tt-text-decoration, none);
    text-transform: var(--bkbg-fn-tt-text-transform, uppercase);
    line-height: var(--bkbg-fn-tt-line-height-d, 1.4);
    letter-spacing: var(--bkbg-fn-tt-letter-spacing-d, 0.03em);
    word-spacing: var(--bkbg-fn-tt-word-spacing-d, normal);
}

/* ── List ────────────────────────────────────────────────────── */
.bkbg-fn-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.bkbg-fn-item {
    display: flex;
    align-items: baseline;
    gap: 10px;
}

/* Card style */
.bkbg-fn-list-card .bkbg-fn-item {
    border: 1px solid;
    border-radius: 6px;
    padding: 8px 12px;
}

/* Compact style */
.bkbg-fn-list-compact .bkbg-fn-item {
    gap: 6px;
    font-size: 0.9em;
}

/* ── Marker ──────────────────────────────────────────────────── */
.bkbg-fn-marker {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 22px;
    height: 20px;
    border-radius: 3px;
    font-size: 11px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    line-height: 1;
    padding: 0 4px;
}

/* ── Inline marker (used via JS injection into text) ──────────── */
.bkbg-fn-ref {
    cursor: pointer;
    position: relative;
    font-size: 0.75em;
    vertical-align: super;
    font-weight: 700;
    text-decoration: none;
    line-height: 1;
    padding: 1px 3px;
    border-radius: 3px;
    transition: opacity .15s;
}

.bkbg-fn-ref:hover {
    opacity: .75;
}

/* ── Tooltip ──────────────────────────────────────────────────── */
.bkbg-fn-tooltip {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    min-width: 220px;
    max-width: 320px;
    padding: 10px 14px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 400;
    line-height: 1.55;
    pointer-events: none;
    opacity: 0;
    transition: opacity .18s;
    z-index: 999;
    white-space: normal;
    text-align: left;
    box-shadow: 0 4px 16px rgba(0,0,0,.18);
}

.bkbg-fn-ref:hover .bkbg-fn-tooltip,
.bkbg-fn-ref:focus .bkbg-fn-tooltip {
    opacity: 1;
}

/* Tooltip tail */
.bkbg-fn-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: inherit;
}

/* Typography responsive */
@media (max-width: 1024px) {
    .bkbg-fn-block { font-size: var(--bkbg-fn-nt-font-size-t, var(--bkbg-fn-nt-font-size-d, 14px)); line-height: var(--bkbg-fn-nt-line-height-t, var(--bkbg-fn-nt-line-height-d, 1.6)); letter-spacing: var(--bkbg-fn-nt-letter-spacing-t, var(--bkbg-fn-nt-letter-spacing-d, normal)); word-spacing: var(--bkbg-fn-nt-word-spacing-t, var(--bkbg-fn-nt-word-spacing-d, normal)); }
    .bkbg-fn-block .bkbg-fn-title { font-size: var(--bkbg-fn-tt-font-size-t, var(--bkbg-fn-tt-font-size-d, 16px)); line-height: var(--bkbg-fn-tt-line-height-t, var(--bkbg-fn-tt-line-height-d, 1.4)); letter-spacing: var(--bkbg-fn-tt-letter-spacing-t, var(--bkbg-fn-tt-letter-spacing-d, 0.03em)); word-spacing: var(--bkbg-fn-tt-word-spacing-t, var(--bkbg-fn-tt-word-spacing-d, normal)); }
}
@media (max-width: 767px) {
    .bkbg-fn-block { font-size: var(--bkbg-fn-nt-font-size-m, var(--bkbg-fn-nt-font-size-t, var(--bkbg-fn-nt-font-size-d, 14px))); line-height: var(--bkbg-fn-nt-line-height-m, var(--bkbg-fn-nt-line-height-t, var(--bkbg-fn-nt-line-height-d, 1.6))); letter-spacing: var(--bkbg-fn-nt-letter-spacing-m, var(--bkbg-fn-nt-letter-spacing-t, var(--bkbg-fn-nt-letter-spacing-d, normal))); word-spacing: var(--bkbg-fn-nt-word-spacing-m, var(--bkbg-fn-nt-word-spacing-t, var(--bkbg-fn-nt-word-spacing-d, normal))); }
    .bkbg-fn-block .bkbg-fn-title { font-size: var(--bkbg-fn-tt-font-size-m, var(--bkbg-fn-tt-font-size-t, var(--bkbg-fn-tt-font-size-d, 16px))); line-height: var(--bkbg-fn-tt-line-height-m, var(--bkbg-fn-tt-line-height-t, var(--bkbg-fn-tt-line-height-d, 1.4))); letter-spacing: var(--bkbg-fn-tt-letter-spacing-m, var(--bkbg-fn-tt-letter-spacing-t, var(--bkbg-fn-tt-letter-spacing-d, 0.03em))); word-spacing: var(--bkbg-fn-tt-word-spacing-m, var(--bkbg-fn-tt-word-spacing-t, var(--bkbg-fn-tt-word-spacing-d, normal))); }
}

/* Editor accordion */
.bkbg-fn-nota-editor {
    margin-bottom: 6px;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    overflow: hidden;
}

.bkbg-fn-nota-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    cursor: pointer;
    background: #f8fafc;
    border-left: 3px solid;
    font-size: 12px;
    gap: 8px;
    user-select: none;
}

.bkbg-fn-nota-header:hover { background: #f1f5f9; }

.bkbg-fn-nota-fields {
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: #fff;
}