/* Board layout */
.board-container {
    display: flex;
    gap: 16px;
    overflow-x: auto;
    padding: 16px 0;
    min-height: calc(100vh - 200px);
    align-items: flex-start;
}

.board-column {
    min-width: 280px;
    max-width: 320px;
    flex-shrink: 0;
    background: var(--mud-palette-surface);
    border-radius: 8px;
    padding: 8px;
}

.board-column-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px;
    margin-bottom: 8px;
    border-radius: 4px;
}

.board-column-header .column-color-bar {
    width: 4px;
    height: 24px;
    border-radius: 2px;
    margin-right: 8px;
    flex-shrink: 0;
}

/* Card styles */
.board-card {
    background: var(--mud-palette-background);
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 8px;
    cursor: grab;
    border: 1px solid var(--mud-palette-lines-default);
    transition: box-shadow 0.2s, opacity 0.3s;
}

.board-card:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

.board-card.completed {
    opacity: 0.5;
}

.board-card .card-ticket-number {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--mud-palette-primary);
    cursor: pointer;
    text-decoration: none;
}

.board-card .card-ticket-number:hover {
    text-decoration: underline;
}

.board-card .card-subject {
    font-size: 0.9rem;
    margin: 4px 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.board-card .card-customer {
    font-size: 0.8rem;
    color: var(--mud-palette-text-secondary);
}

.board-card .card-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
    font-size: 0.75rem;
    color: var(--mud-palette-text-secondary);
}

.board-card .card-due-date.overdue {
    color: var(--mud-palette-error);
    font-weight: 600;
}

.board-card .card-note-preview {
    font-size: 0.78rem;
    color: var(--mud-palette-text-secondary);
    margin-top: 6px;
    font-style: italic;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.board-card .free-card-icon {
    color: var(--mud-palette-text-secondary);
    margin-right: 4px;
}

/* Drop zone styling */
.board-column .mud-drop-zone {
    min-height: 60px;
    border-radius: 4px;
    transition: background 0.2s;
}

.board-column .mud-drop-zone.mud-drop-zone-drag-block {
    background: var(--mud-palette-lines-default);
}

/* Notes panel */
.card-notes-panel {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--mud-palette-lines-default);
}

.card-note-item {
    font-size: 0.82rem;
    margin-bottom: 6px;
    padding: 4px 0;
}

.card-note-item .note-author {
    font-weight: 600;
    font-size: 0.75rem;
    color: var(--mud-palette-text-secondary);
}