@use '~flux/components/css/mixin';

.kanban {
    position: relative;
    display: grid;
    flex-grow: 1;
    grid-auto-flow: column;
    grid-auto-columns: minmax(300px, 1fr);
    grid-template-rows: auto 1fr auto;
    gap: 0 15px;
    overflow-x: auto;
}

.kanbanLiveRegion {
    position: absolute;
    grid-row: 1;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    border: 0;
    clip: rect(0, 0, 0, 0);
    overflow: hidden;
    white-space: nowrap;
}

.kanbanColumn {
    display: grid;
    grid-template-rows: subgrid;
    grid-row: span 2;
    min-width: 0;
    background: var(--gray-50);
    border: 1px solid var(--surface-stroke);
    border-radius: var(--radius);
    outline: 2px dashed transparent;
    outline-offset: -2px;
    overflow: hidden;
    transition: 210ms var(--swift-out);
    transition-property: background, border, outline-color, opacity, z-index;
    z-index: 0;

    &.isOver {
        background: var(--primary-50);
        border-color: var(--primary-200);
        outline-color: var(--primary-600);
        z-index: 1;
    }
}

.kanbanColumn.isColumnDragging {
    opacity: .4;
}

.kanbanColumn.isColumnDropBefore {
    box-shadow: -3px 0 0 var(--primary-500);
}

.kanbanColumnHeader {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 12px 12px 0;

    @include mixin.focus-ring(-2);
}

.kanbanColumnHeaderCaption {
    display: flex;
    padding-left: 9px;
    align-items: center;
    gap: 9px;

    :local(.icon) {
        font-size: 16px;
    }

    :global(span) {
        font-weight: 500;
    }
}

.kanbanColumn.isReorderable .kanbanColumnHeader {
    cursor: grab;
}

.kanbanColumn.isReorderable .kanbanColumnHeader:active {
    cursor: grabbing;
}

.kanbanColumnBody {
    position: relative;
    display: flex;
    flex-flow: column;
    gap: 12px;
    padding: 12px;
    min-height: 60px;
    flex: 1;
    overflow-y: auto;
    transition: background 180ms var(--swift-out);
}

.kanbanColumn.isOver.isDropDisallowed .kanbanColumnBody {
    background: rgb(from var(--danger-500) r g b / .06);
    cursor: not-allowed;
}

.kanban.isBoardDragging .kanbanColumn:not(.isOver):not(.isDisabled) .kanbanColumnBody {
    background: rgb(from var(--primary-500) r g b / .02);
}

.kanbanColumn.isDisabled {
    opacity: .6;
    cursor: not-allowed;
}

.kanbanColumn.isDisabled .kanbanColumnBody {
    pointer-events: none;
}

.kanbanColumnEmpty {
    display: flex;
    flex: 1;
    align-items: center;
    justify-content: center;
    color: var(--foreground-secondary);
    text-align: center;
}

.kanbanColumnFooter {
    padding: 9px 15px;
    border-top: 1px solid var(--gray-200);
}

.kanbanDropIndicator {
    position: absolute;
    top: -2px;
    inset-inline: 15px;
    height: 2px;
    border-radius: 999px;
    background: var(--primary-500);
    opacity: 0;
    pointer-events: none;
    transition: 300ms var(--swift-out);
    transition-property: background, opacity;
    will-change: transform;
}

.kanbanDropIndicator.isVisible {
    opacity: 1;
}

.kanbanDropIndicator.isDisallowed {
    background: var(--danger-500);
}

.kanbanItem {
    position: relative;
    display: block;
    background: transparent;
    border: 0;
    cursor: grab;
    scroll-margin: 9px;
    transition: opacity 180ms var(--swift-out), transform 180ms var(--swift-out);
    user-select: none;

    @include mixin.focus-ring(2);

    &:active {
        cursor: grabbing;
    }

    &.isDragging {
        opacity: .4;
        cursor: grabbing;
    }

    &.isGrabbed {
        transform: scale(1.04);
        outline: 2px solid var(--primary-500);
        outline-offset: 2px;
        z-index: 1;
    }
}

.kanbanItem.isDisabled {
    cursor: not-allowed;
    opacity: .6;

    &:active {
        cursor: not-allowed;
    }
}