/* ==========================================================================
   Charts & Dashboard Styles
   ========================================================================== */

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    padding: 20px;
    background-color: var(--bg-secondary);
    overflow-y: auto;
    height: 100%;
}

.dashboard-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

.dashboard-card h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

/* Chart Card Header */
.chart-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.btn-expand-chart {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: background-color 0.2s;
    opacity: 0.6;
}

.btn-expand-chart:hover {
    background-color: var(--bg-secondary);
    opacity: 1;
}

/* KPI Card */
.kpi-card {
    min-height: 140px;
    justify-content: center;
}

.kpi-value {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: 8px;
}

.kpi-label {
    font-size: 14px;
    color: var(--text-secondary);
}

.kpi-value.warning {
    color: var(--warning-color);
}

.kpi-value.danger {
    color: var(--danger-color);
}

.kpi-value.success {
    color: var(--success-color);
}

/* Chart Card */
.chart-card {
    min-height: 300px;
}

.chart-card.wide {
    grid-column: span 2;
}

.chart-card canvas {
    max-height: 400px;
}

/* Backlog Layout */
.backlog-layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 20px;
    padding: 20px;
    height: 100%;
    overflow: hidden;
    background-color: var(--bg-secondary);
}

.sprint-panel,
.backlog-panel {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.panel-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.panel-header h2 {
    font-size: 18px;
    font-weight: 600;
}

.backlog-stats {
    font-size: 13px;
    color: var(--text-secondary);
}

.backlog-stats strong {
    color: var(--primary-color);
    font-weight: 600;
}

/* Sprint List */
.sprint-list {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
}

.sprint-item {
    padding: 12px;
    margin-bottom: 8px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
}

.sprint-item:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--border-dark);
}

.sprint-item.active {
    background-color: rgba(37, 99, 235, 0.1);
    border-color: var(--primary-color);
}

.sprint-item-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.sprint-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.sprint-status {
    padding: 2px 8px;
    font-size: 11px;
    font-weight: 500;
    border-radius: 4px;
}

.sprint-status.status-active {
    background-color: #dcfce7;
    color: #166534;
}

.sprint-status.status-planned {
    background-color: #e0e7ff;
    color: #4338ca;
}

.sprint-status.status-completed {
    background-color: #dbeafe;
    color: #1e40af;
}

.sprint-dates {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.sprint-progress {
    margin-top: 8px;
}

.sprint-progress-bar {
    width: 100%;
    height: 6px;
    background-color: var(--bg-tertiary);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 4px;
}

.sprint-progress-fill {
    height: 100%;
    background-color: var(--success-color);
    transition: width 0.3s;
}

.sprint-points {
    font-size: 11px;
    color: var(--text-secondary);
    display: flex;
    justify-content: space-between;
}

/* Backlog List */
.backlog-list {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
}

.backlog-item {
    padding: 12px;
    margin-bottom: 8px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--border-color);
    border-radius: 4px;
    cursor: move;
    transition: all 0.2s;
}

.backlog-item:hover {
    background-color: var(--bg-tertiary);
    box-shadow: var(--shadow-sm);
}

.backlog-item.dragging {
    opacity: 0.5;
}

.backlog-item.priority-high {
    border-left-color: var(--danger-color);
}

.backlog-item.priority-medium {
    border-left-color: var(--warning-color);
}

.backlog-item.priority-low {
    border-left-color: var(--text-muted);
}

.backlog-item-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 8px;
}

.backlog-item-title {
    flex: 1;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.backlog-item-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 12px;
    color: var(--text-secondary);
}

.backlog-item-points {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    background-color: var(--bg-primary);
    border-radius: 4px;
    font-weight: 600;
    color: var(--primary-color);
}

/* Report Panel */
.report-panel {
    height: 100%;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-primary);
}

.report-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.report-header h2 {
    font-size: 20px;
    font-weight: 600;
}

.report-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.report-content {
    flex: 1;
    overflow-y: auto;
    padding: 40px;
    background-color: var(--bg-secondary);
}

/* Report Sections */
.report-section {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 24px;
    margin-bottom: 24px;
}

.report-section h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.report-section h4 {
    font-size: 16px;
    font-weight: 600;
    margin-top: 20px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.report-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.report-metric {
    padding: 16px;
    background-color: var(--bg-secondary);
    border-radius: 6px;
}

.report-metric-label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.report-metric-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.report-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 16px;
}

.report-table th {
    text-align: left;
    padding: 12px;
    background-color: var(--bg-tertiary);
    border-bottom: 2px solid var(--border-color);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
}

.report-table td {
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
}

.report-table tr:last-child td {
    border-bottom: none;
}

.report-chart {
    margin-top: 20px;
    max-height: 400px;
}

/* ==========================================================================
   Chart Expand Modal
   ========================================================================== */

.modal-large {
    max-width: 90vw;
    max-height: 90vh;
    width: 1200px;
}

.modal-large .modal-body {
    height: calc(90vh - 120px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

#chart-expand-canvas {
    max-width: 100%;
    max-height: 100%;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 1200px) {
    .dashboard-card.wide {
        grid-column: span 1;
    }
}

@media (max-width: 768px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
        padding: 12px;
        gap: 12px;
    }

    .backlog-layout {
        grid-template-columns: 1fr;
        padding: 12px;
    }

    .sprint-panel {
        max-height: 300px;
    }

    .report-content {
        padding: 20px;
    }

    .report-summary {
        grid-template-columns: 1fr;
    }
}