.tb-kanban {
    --tb-kanban-column-width: 300px;
    --tb-kanban-card-height: 160px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    min-height: 240px;
    overflow: hidden;
    color: #2f3542;
    background: #f4f6f8;
}

.tb-kanban *,
.tb-kanban *::before,
.tb-kanban *::after {
    box-sizing: border-box;
}

.tb-kanban[aria-busy='true'] {
    cursor: progress;
    opacity: .78;
}

.tb-kanban-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: end;
    gap: 8px;
    padding: 8px;
    border-bottom: 1px solid #d8dde3;
    background: #fff;
}

.tb-kanban-toolbar label {
    display: flex;
    flex-direction: column;
    gap: 3px;
    font-size: 12px;
    font-weight: 600;
}

.tb-kanban-toolbar .tb-kanban-show-empty {
    flex-direction: row;
    align-items: center;
    padding-bottom: 7px;
}

.tb-kanban-search,
.tb-kanban-category-filter,
.tb-kanban-clear-filter {
    min-height: 30px;
    border: 1px solid #c7cdd4;
    border-radius: 4px;
    background: #fff;
}

.tb-kanban-search {
    min-width: 220px;
    padding: 4px 8px;
}

.tb-kanban-category-filter {
    min-width: 150px;
    max-height: 64px;
}

.tb-kanban-clear-filter {
    padding: 4px 12px;
    cursor: pointer;
}

.tb-kanban-board {
    flex: 1 1 auto;
    min-height: 0;
    padding: 10px;
    overflow: auto;
}

.tb-kanban-board--kanban {
    display: flex;
    align-items: stretch;
    gap: 10px;
}

.tb-kanban-board--model-canvas {
    display: grid;
    grid-template-columns: repeat(5, minmax(190px, 1fr));
    grid-template-areas:
        'key-partners key-activities value-proposition customer-relationships customer-segments'
        'key-partners key-resources value-proposition channels customer-segments'
        'cost-structure cost-structure cost-structure revenue-streams revenue-streams';
    gap: 8px;
    min-width: 980px;
}

.tb-kanban-column {
    display: flex;
    flex: 0 0 var(--tb-kanban-column-width);
    flex-direction: column;
    min-width: 0;
    min-height: 180px;
    border: 1px solid #ccd2d9;
    border-top: 4px solid var(--tb-kanban-column-color);
    border-radius: 6px;
    overflow: hidden;
    background: #eef1f4;
}

.tb-kanban-board--model-canvas .tb-kanban-column[data-canvas-area='key-partners'] {
    grid-area: key-partners;
}

.tb-kanban-board--model-canvas .tb-kanban-column[data-canvas-area='key-activities'] {
    grid-area: key-activities;
}

.tb-kanban-board--model-canvas .tb-kanban-column[data-canvas-area='key-resources'] {
    grid-area: key-resources;
}

.tb-kanban-board--model-canvas .tb-kanban-column[data-canvas-area='value-proposition'] {
    grid-area: value-proposition;
}

.tb-kanban-board--model-canvas .tb-kanban-column[data-canvas-area='customer-relationships'] {
    grid-area: customer-relationships;
}

.tb-kanban-board--model-canvas .tb-kanban-column[data-canvas-area='channels'] {
    grid-area: channels;
}

.tb-kanban-board--model-canvas .tb-kanban-column[data-canvas-area='customer-segments'] {
    grid-area: customer-segments;
}

.tb-kanban-board--model-canvas .tb-kanban-column[data-canvas-area='cost-structure'] {
    grid-area: cost-structure;
}

.tb-kanban-board--model-canvas .tb-kanban-column[data-canvas-area='revenue-streams'] {
    grid-area: revenue-streams;
}

.tb-kanban-column--drop-target {
    outline: 3px solid #2f80ed;
    outline-offset: -3px;
}

.tb-kanban-column-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 8px 10px;
    background: color-mix(in srgb, var(--tb-kanban-column-color) 35%, white);
}

.tb-kanban-column-header > div {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}

.tb-kanban-column-header h3 {
    margin: 0;
    overflow: hidden;
    font-size: 14px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tb-kanban-count {
    min-width: 22px;
    padding: 2px 6px;
    border-radius: 999px;
    text-align: center;
    font-size: 11px;
    background: rgba(255, 255, 255, .75);
}

.tb-kanban-add {
    width: 28px;
    height: 28px;
    border: 1px solid rgba(0, 0, 0, .15);
    border-radius: 4px;
    cursor: pointer;
    font-size: 20px;
    line-height: 20px;
    background: rgba(255, 255, 255, .8);
}

.tb-kanban-totalizer {
    min-height: var(--tb-kanban-totalizer-height, 0);
    padding: 6px 10px;
    border-bottom: 1px solid #d5dae0;
    font-size: 12px;
    background: rgba(255, 255, 255, .62);
}

.tb-kanban-cards {
    display: flex;
    flex: 1 1 auto;
    flex-direction: column;
    gap: 8px;
    min-height: 64px;
    padding: 8px;
    overflow-y: auto;
}

.tb-kanban-card {
    position: relative;
    min-height: min(100%, var(--tb-kanban-card-height));
    padding: 9px 9px 8px 13px;
    border: 1px solid #d2d7dd;
    border-radius: 5px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, .08);
    background: #fff;
}

.tb-kanban-card[draggable='true'] {
    cursor: grab;
}

.tb-kanban-card--dragging {
    opacity: .45;
}

.tb-kanban-card--selected {
    border-color: #2f80ed;
    box-shadow: 0 0 0 2px rgba(47, 128, 237, .2);
}

.tb-kanban-card-accent {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 5px;
    border-radius: 5px 0 0 5px;
    background: var(--tb-kanban-card-color);
}

.tb-kanban-card h4 {
    margin: 0 0 7px;
    font-size: 14px;
}

.tb-kanban-card-description {
    max-height: calc(var(--tb-kanban-card-height) - 80px);
    overflow: auto;
    font-size: 12px;
}

.tb-kanban-card-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 7px;
}

.tb-kanban-card-categories span {
    padding: 2px 6px;
    border-radius: 999px;
    font-size: 10px;
    background: #e9edf2;
}

.tb-kanban-card details {
    margin-top: 7px;
    font-size: 11px;
}

.tb-kanban-details {
    width: 100%;
    border-collapse: collapse;
}

.tb-kanban-details th,
.tb-kanban-details td {
    padding: 3px;
    border-bottom: 1px solid #e4e7eb;
    text-align: left;
    vertical-align: top;
}

.tb-kanban-card footer {
    display: flex;
    justify-content: flex-end;
    gap: 6px;
    margin-top: 8px;
}

.tb-kanban-card footer button {
    min-height: 27px;
    padding: 3px 9px;
    border: 1px solid #c7cdd4;
    border-radius: 4px;
    cursor: pointer;
    background: #f8f9fa;
}

.tb-kanban-delete {
    color: #a61b1b;
}

.tb-kanban--read-only .tb-kanban-add,
.tb-kanban--read-only .tb-kanban-delete {
    display: none;
}

@media (max-width: 900px) {
    .tb-kanban-board--model-canvas {
        display: flex;
        flex-direction: column;
        min-width: 0;
    }

    .tb-kanban-board--model-canvas .tb-kanban-column {
        flex-basis: auto;
        width: 100%;
    }
}