/* ============================================
   Kanban Board — Pipeline View
   ============================================ */

/* Board container */
.kanban-board {
    display: flex;
    gap: 12px;
    overflow-x: auto;
    padding: 8px 0 16px;
    min-height: 400px;
    -webkit-overflow-scrolling: touch;
}

/* Column */
.kanban-column {
    flex: 1 0 220px;
    min-width: 220px;
    max-width: 320px;
    background: var(--bg-secondary, #f3f4f6);
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    transition: box-shadow 0.2s ease, background 0.2s ease;
}

.kanban-column.kanban-column-dragover {
    background: var(--bg-tertiary, #e5e7eb);
    box-shadow: inset 0 0 0 2px var(--accent-primary, var(--accent-primary));
}

/* Column header */
.kanban-column-header {
    padding: 12px 14px 8px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-radius: 10px 10px 0 0;
}

.kanban-column-title {
    font-weight: 700;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    color: var(--text-primary, #1f2937);
}

.kanban-column-count {
    background: var(--bg-primary, #fff);
    color: var(--text-secondary, #6b7280);
    font-size: 12px;
    font-weight: 600;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Column body (scrollable card list) */
.kanban-column-body {
    flex: 1;
    padding: 4px 8px;
    overflow-y: auto;
    max-height: 520px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* Column footer */
.kanban-column-footer {
    padding: 8px 14px;
    border-top: 1px solid var(--border-color, #e5e7eb);
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: var(--text-muted, #9ca3af);
    font-weight: 600;
}

/* ============================================
   Cards
   ============================================ */

.kanban-card {
    background: var(--bg-primary, #fff);
    border-radius: 8px;
    padding: 10px 12px;
    cursor: grab;
    border: 1px solid var(--border-color, #e5e7eb);
    transition: box-shadow 0.15s ease, transform 0.15s ease, opacity 0.2s ease;
    user-select: none;
}

.kanban-card:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transform: translateY(-1px);
}

.kanban-card:active {
    cursor: grabbing;
}

.kanban-card-dragging {
    opacity: 0.4 !important;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

/* Color-coded borders */
.kanban-card-won {
    border-left: 3px solid #22c55e;
    background: linear-gradient(135deg, #f0fdf4 0%, var(--bg-primary, #fff) 100%);
}

.kanban-card-lost {
    border-left: 3px solid #ef4444;
    background: linear-gradient(135deg, #fef2f2 0%, var(--bg-primary, #fff) 100%);
    opacity: 0.75;
}

.kanban-card-overdue {
    border-left: 3px solid #f59e0b;
    background: linear-gradient(135deg, #fffbeb 0%, var(--bg-primary, #fff) 100%);
}

/* Card header */
.kanban-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 6px;
    gap: 6px;
}

.kanban-card-name {
    font-weight: 600;
    font-size: 13px;
    color: var(--text-primary, #1f2937);
    line-height: 1.3;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.kanban-card-id {
    font-size: 10px;
    color: var(--text-muted, #9ca3af);
    white-space: nowrap;
    flex-shrink: 0;
}

/* Card body */
.kanban-card-body {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}

.kanban-card-amount {
    font-weight: 700;
    font-size: 14px;
    color: var(--text-primary, #1f2937);
}

.kanban-card-age {
    font-size: 11px;
    color: var(--text-muted, #9ca3af);
}

/* Card footer */
.kanban-card-footer {
    display: flex;
    align-items: center;
}

/* Status badges */
.kanban-status-badge {
    font-size: 10px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 10px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.kanban-status-entwurf {
    background: rgba(107, 114, 128, 0.15);
    color: #6b7280;
}

.kanban-status-offen {
    background: rgba(139, 92, 246, 0.15);
    color: #7c3aed;
}

.kanban-status-angenommen {
    background: rgba(34, 197, 94, 0.15);
    color: #16a34a;
}

.kanban-status-abgelehnt {
    background: rgba(239, 68, 68, 0.15);
    color: #dc2626;
}

.kanban-status-vorläufig_gesendet {
    background: rgba(59, 130, 246, 0.15);
    color: #2563eb;
}

.kanban-status-verhandlung {
    background: rgba(236, 72, 153, 0.15);
    color: #db2777;
}

/* ============================================
   Summary bar
   ============================================ */

.kanban-summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--bg-secondary, #f3f4f6);
    border-radius: 8px;
    margin-top: 8px;
}

.kanban-summary-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary, #6b7280);
}

.kanban-summary-value {
    font-size: 16px;
    font-weight: 700;
    color: var(--accent-primary, var(--accent-primary));
}

/* ============================================
   Kanban container (hidden by default)
   ============================================ */

#kanban-container {
    display: none;
}

/* Pipeline toggle button */
#btn-pipeline-toggle {
    font-size: 13px;
}

/* ============================================
   Responsive: mobile horizontal scroll
   ============================================ */

@media (max-width: 768px) {
    .kanban-board {
        gap: 8px;
        padding-bottom: 12px;
    }

    .kanban-column {
        flex: 0 0 260px;
        min-width: 260px;
        max-width: 280px;
    }

    .kanban-column-body {
        max-height: 380px;
    }

    .kanban-card-name {
        font-size: 12px;
    }

    .kanban-card-amount {
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .kanban-column {
        flex: 0 0 calc(100vw - 32px);
        min-width: 240px;
    }
}

/* ============================================
   Dark mode
   ============================================ */

@media (prefers-color-scheme: dark) {
    .kanban-board { background: var(--bg-primary, #1a1a2e); }
    .kanban-column { background: var(--bg-secondary, #16213e); }
    .kanban-card { background: var(--bg-card, #1a1a2e); border-color: var(--border-color, #2a2a4a); }
    .kanban-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.3); }
    .kanban-column-header { border-color: var(--border-color, #2a2a4a); }
}

@media (prefers-reduced-motion: reduce) {
    .kanban-card, .kanban-column { transition: none !important; }
}