/* =====================================================
   Gantt Chart – bkbg-gant-*
   ===================================================== */

.bkbg-gant-outer {
    box-sizing: border-box;
    font-family: var(--bkbg-gant-lb-font-family, system-ui, -apple-system, sans-serif);
    font-size: var(--bkbg-gant-lb-font-size-d, 12px);
    font-weight: var(--bkbg-gant-lb-font-weight, 400);
    font-style: var(--bkbg-gant-lb-font-style, normal);
    text-decoration: var(--bkbg-gant-lb-text-decoration, none);
    text-transform: var(--bkbg-gant-lb-text-transform, none);
    line-height: var(--bkbg-gant-lb-line-height-d, 1.4);
    letter-spacing: var(--bkbg-gant-lb-letter-spacing-d, normal);
    word-spacing: var(--bkbg-gant-lb-word-spacing-d, normal);
    overflow-x: auto;
    width: 100%;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
}

.bkbg-gant-outer::-webkit-scrollbar {
    height: 6px;
}

.bkbg-gant-outer::-webkit-scrollbar-thumb {
    border-radius: 3px;
    background: rgba(0,0,0,0.15);
}

/* ---- Chart layout ---- */
.bkbg-gant-layout {
    display: flex;
    min-width: 600px;
}

/* ---- Label column ---- */
.bkbg-gant-labels {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
}

.bkbg-gant-header-cell {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 0 10px;
    font-family: var(--bkbg-gant-hd-font-family, inherit);
    font-size: var(--bkbg-gant-hd-font-size-d, 11px);
    font-weight: var(--bkbg-gant-hd-font-weight, 700);
    font-style: var(--bkbg-gant-hd-font-style, normal);
    text-decoration: var(--bkbg-gant-hd-text-decoration, none);
    text-transform: var(--bkbg-gant-hd-text-transform, none);
    line-height: var(--bkbg-gant-hd-line-height-d, 1.3);
    letter-spacing: var(--bkbg-gant-hd-letter-spacing-d, 0.03em);
    word-spacing: var(--bkbg-gant-hd-word-spacing-d, normal);
    box-sizing: border-box;
}

.bkbg-gant-label-cell {
    display: flex;
    align-items: center;
    padding: 0 10px;
    box-sizing: border-box;
    overflow: hidden;
}

.bkbg-gant-label-cell.is-phase {
    font-family: var(--bkbg-gant-hd-font-family, inherit);
    font-size: var(--bkbg-gant-hd-font-size-d, 11px);
    font-weight: var(--bkbg-gant-hd-font-weight, 700);
    font-style: var(--bkbg-gant-hd-font-style, normal);
    text-decoration: var(--bkbg-gant-hd-text-decoration, none);
    text-transform: var(--bkbg-gant-hd-text-transform, uppercase);
    line-height: var(--bkbg-gant-hd-line-height-d, 1.3);
    letter-spacing: var(--bkbg-gant-hd-letter-spacing-d, 0.05em);
    word-spacing: var(--bkbg-gant-hd-word-spacing-d, normal);
}

.bkbg-gant-label-cell.is-task {
    padding-left: 18px;
}

.bkbg-gant-label-text {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
}

.bkbg-gant-assignee {
    font-size: 10px;
    opacity: 0.6;
    flex-shrink: 0;
    margin-left: 6px;
}

/* ---- Grid (chart area) ---- */
.bkbg-gant-grid {
    flex: 1;
    position: relative;
    min-width: 0;
    overflow: hidden;
}

/* Month / week header row */
.bkbg-gant-col-headers {
    display: flex;
    overflow: hidden;
}

.bkbg-gant-col-header {
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--bkbg-gant-hd-font-family, inherit);
    font-size: var(--bkbg-gant-hd-font-size-d, 11px);
    font-weight: var(--bkbg-gant-hd-font-weight, 600);
    font-style: var(--bkbg-gant-hd-font-style, normal);
    text-decoration: var(--bkbg-gant-hd-text-decoration, none);
    text-transform: var(--bkbg-gant-hd-text-transform, none);
    line-height: var(--bkbg-gant-hd-line-height-d, 1.3);
    letter-spacing: var(--bkbg-gant-hd-letter-spacing-d, normal);
    word-spacing: var(--bkbg-gant-hd-word-spacing-d, normal);
    overflow: hidden;
    white-space: nowrap;
    box-sizing: border-box;
    padding: 0 4px;
}

/* Task rows */
.bkbg-gant-rows {
    position: relative;
}

.bkbg-gant-row {
    position: relative;
    box-sizing: border-box;
    display: flex;
    align-items: center;
}

/* Grid vertical lines */
.bkbg-gant-col-lines {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    pointer-events: none;
    z-index: 0;
}

.bkbg-gant-col-line {
    flex: 1;
    box-sizing: border-box;
}

/* ---- Task bar ---- */
.bkbg-gant-bar {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    overflow: hidden;
    z-index: 1;
    cursor: default;
    transition: filter 0.15s;
}

.bkbg-gant-bar:hover {
    filter: brightness(1.1);
}

.bkbg-gant-bar-progress {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    background: rgba(0,0,0,0.2);
    pointer-events: none;
}

/* ---- Milestone ---- */
.bkbg-gant-milestone {
    position: absolute;
    top: 50%;
    z-index: 2;
    transform: translate(-50%, -50%) rotate(45deg);
    cursor: default;
    transition: filter 0.15s;
}

.bkbg-gant-milestone:hover {
    filter: brightness(1.15);
}

/* ---- Today indicator ---- */
.bkbg-gant-today {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 2px;
    z-index: 3;
    pointer-events: none;
}

/* ---- Legend ---- */
.bkbg-gant-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 11px;
    padding: 8px 4px 0 4px;
    align-items: center;
}

.bkbg-gant-legend-item {
    display: flex;
    align-items: center;
    gap: 5px;
}

.bkbg-gant-legend-bar {
    height: 8px;
    width: 24px;
    border-radius: 4px;
}

.bkbg-gant-legend-diamond {
    width: 10px;
    height: 10px;
    transform: rotate(45deg);
}

.bkbg-gant-legend-today {
    width: 2px;
    height: 14px;
}

/* Typography responsive */
@media (max-width: 1024px) {
    .bkbg-gant-outer {
        font-size: var(--bkbg-gant-lb-font-size-t, var(--bkbg-gant-lb-font-size-d, 12px));
        line-height: var(--bkbg-gant-lb-line-height-t, var(--bkbg-gant-lb-line-height-d, 1.4));
        letter-spacing: var(--bkbg-gant-lb-letter-spacing-t, var(--bkbg-gant-lb-letter-spacing-d, normal));
        word-spacing: var(--bkbg-gant-lb-word-spacing-t, var(--bkbg-gant-lb-word-spacing-d, normal));
    }
    .bkbg-gant-header-cell,
    .bkbg-gant-label-cell.is-phase,
    .bkbg-gant-col-header {
        font-size: var(--bkbg-gant-hd-font-size-t, var(--bkbg-gant-hd-font-size-d, 11px));
        line-height: var(--bkbg-gant-hd-line-height-t, var(--bkbg-gant-hd-line-height-d, 1.3));
        letter-spacing: var(--bkbg-gant-hd-letter-spacing-t, var(--bkbg-gant-hd-letter-spacing-d, normal));
        word-spacing: var(--bkbg-gant-hd-word-spacing-t, var(--bkbg-gant-hd-word-spacing-d, normal));
    }
}
@media (max-width: 767px) {
    .bkbg-gant-outer {
        font-size: var(--bkbg-gant-lb-font-size-m, var(--bkbg-gant-lb-font-size-t, var(--bkbg-gant-lb-font-size-d, 12px)));
        line-height: var(--bkbg-gant-lb-line-height-m, var(--bkbg-gant-lb-line-height-t, var(--bkbg-gant-lb-line-height-d, 1.4)));
        letter-spacing: var(--bkbg-gant-lb-letter-spacing-m, var(--bkbg-gant-lb-letter-spacing-t, var(--bkbg-gant-lb-letter-spacing-d, normal)));
        word-spacing: var(--bkbg-gant-lb-word-spacing-m, var(--bkbg-gant-lb-word-spacing-t, var(--bkbg-gant-lb-word-spacing-d, normal)));
    }
    .bkbg-gant-header-cell,
    .bkbg-gant-label-cell.is-phase,
    .bkbg-gant-col-header {
        font-size: var(--bkbg-gant-hd-font-size-m, var(--bkbg-gant-hd-font-size-t, var(--bkbg-gant-hd-font-size-d, 11px)));
        line-height: var(--bkbg-gant-hd-line-height-m, var(--bkbg-gant-hd-line-height-t, var(--bkbg-gant-hd-line-height-d, 1.3)));
        letter-spacing: var(--bkbg-gant-hd-letter-spacing-m, var(--bkbg-gant-hd-letter-spacing-t, var(--bkbg-gant-hd-letter-spacing-d, normal)));
        word-spacing: var(--bkbg-gant-hd-word-spacing-m, var(--bkbg-gant-hd-word-spacing-t, var(--bkbg-gant-hd-word-spacing-d, normal)));
    }
}