/* ============================================
   CHARTS COMPONENT
   Analytics charts, confidence bars, visualizations
   ============================================ */

/* Analytics Container */
#analytics-view {
    padding: var(--space-4);
    overflow-y: auto;
    flex: 1;
}

.analytics-container {
    max-width: 1400px;
    margin: 0 auto;
}

.analytics-header {
    margin-bottom: var(--space-6);
}

.analytics-header h1 {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-1);
}

.analytics-header p {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
}

/* Stats Grid */
.analytics-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

@media (min-width: 768px) {
    .analytics-stats {
        grid-template-columns: repeat(4, 1fr);
    }
}

.analytics-stat {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    text-align: center;
    transition: all var(--duration-fast);
}

.analytics-stat:hover {
    border-color: var(--color-accent);
    transform: translateY(-2px);
}

.analytics-stat__value {
    font-size: 36px;
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--space-1);
}

.analytics-stat__label {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.analytics-stat--danger .analytics-stat__value {
    color: var(--color-danger);
}

.analytics-stat--warning .analytics-stat__value {
    color: var(--color-warning);
}

.analytics-stat--success .analytics-stat__value {
    color: var(--color-success);
}

/* Charts Grid */
.analytics-charts {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}

@media (min-width: 768px) {
    .analytics-charts {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1200px) {
    .analytics-charts {
        grid-template-columns: repeat(4, 1fr);
    }
}

.analytics-chart {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
}

.analytics-chart h3 {
    font-size: var(--text-base);
    font-weight: 600;
    margin-bottom: var(--space-3);
    color: var(--color-text);
}

.analytics-chart__empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 200px;
    color: var(--color-text-muted);
    text-align: center;
}

.analytics-chart__empty-icon {
    font-size: 48px;
    margin-bottom: var(--space-2);
    opacity: 0.5;
}

/* Confidence Distribution Chart */
.confidence-chart {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.confidence-bar {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
    padding: var(--space-1);
    border-radius: var(--radius-sm);
    transition: background var(--duration-fast);
}

.confidence-bar:hover {
    background: var(--color-bg-hover);
}

.confidence-bar:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.confidence-bar__label {
    width: 24px;
    font-size: 10px;
    font-weight: 700;
    text-align: center;
    border-radius: var(--radius-sm);
    padding: 2px;
    flex-shrink: 0;
}

.confidence-bar--vh .confidence-bar__label { 
    background: #dc2626; 
    color: white; 
}

.confidence-bar--h .confidence-bar__label { 
    background: #f59e0b; 
    color: black; 
}

.confidence-bar--m .confidence-bar__label { 
    background: #eab308; 
    color: black; 
}

.confidence-bar--l .confidence-bar__label { 
    background: #22c55e; 
    color: white; 
}

.confidence-bar__track {
    flex: 1;
    height: 8px;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.confidence-bar__fill {
    height: 100%;
    transition: width var(--duration-normal);
}

.confidence-bar--vh .confidence-bar__fill { 
    background: linear-gradient(90deg, #dc2626, #ef4444); 
}

.confidence-bar--h .confidence-bar__fill { 
    background: linear-gradient(90deg, #f59e0b, #fbbf24); 
}

.confidence-bar--m .confidence-bar__fill { 
    background: linear-gradient(90deg, #eab308, #facc15); 
}

.confidence-bar--l .confidence-bar__fill { 
    background: linear-gradient(90deg, #22c55e, #4ade80); 
}

.confidence-bar__count {
    min-width: 40px;
    font-size: var(--text-sm);
    font-weight: 700;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.confidence-bar--active {
    background: var(--color-bg-hover);
}

.confidence-bar__desc {
    font-size: 10px;
    color: var(--color-text-muted);
    text-align: right;
    display: none;
}

@media (min-width: 768px) {
    .confidence-bar__desc {
        display: block;
    }
}

/* Bar Chart */
.bar-chart {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.bar-chart__item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.bar-chart__label {
    width: 80px;
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
    flex-shrink: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.bar-chart__track {
    flex: 1;
    height: 20px;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.bar-chart__fill {
    height: 100%;
    background: var(--color-accent);
    border-radius: var(--radius-sm);
    transition: width var(--duration-normal);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: var(--space-2);
    min-width: 30px;
}

.bar-chart__fill-text {
    font-size: 10px;
    font-weight: 600;
    color: white;
}

.bar-chart__value {
    width: 40px;
    font-size: var(--text-xs);
    font-weight: 600;
    text-align: right;
    flex-shrink: 0;
}

/* Pie/Donut Chart */
.donut-chart {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.donut-chart__visual {
    width: 120px;
    height: 120px;
    flex-shrink: 0;
}

.donut-chart__legend {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.donut-chart__legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-xs);
}

.donut-chart__legend-color {
    width: 12px;
    height: 12px;
    border-radius: 2px;
    flex-shrink: 0;
}

.donut-chart__legend-label {
    flex: 1;
    color: var(--color-text-secondary);
}

.donut-chart__legend-value {
    font-weight: 600;
}

/* Timeline Chart */
.timeline-chart {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.timeline-chart__item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) 0;
    border-bottom: 1px solid var(--color-border);
}

.timeline-chart__item:last-child {
    border-bottom: none;
}

.timeline-chart__time {
    width: 60px;
    font-size: 10px;
    color: var(--color-text-muted);
    flex-shrink: 0;
}

.timeline-chart__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-accent);
    flex-shrink: 0;
}

.timeline-chart__event {
    flex: 1;
    font-size: var(--text-xs);
}

/* Heatmap */
.heatmap {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
}

.heatmap__cell {
    aspect-ratio: 1;
    border-radius: 2px;
    background: var(--color-bg);
    position: relative;
}

.heatmap__cell--l1 { background: rgba(34, 197, 94, 0.2); }
.heatmap__cell--l2 { background: rgba(34, 197, 94, 0.4); }
.heatmap__cell--l3 { background: rgba(245, 158, 11, 0.4); }
.heatmap__cell--l4 { background: rgba(245, 158, 11, 0.6); }
.heatmap__cell--l5 { background: rgba(220, 38, 38, 0.6); }

.heatmap__cell:hover::after {
    content: attr(data-value);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-size: 10px;
    white-space: nowrap;
    z-index: 1;
}

/* Proximity Buckets */
.proximity-buckets {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.proximity-bucket {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.proximity-bucket__range {
    width: 80px;
    font-size: 10px;
    color: var(--color-text-muted);
    flex-shrink: 0;
}

.proximity-bucket__track {
    flex: 1;
    height: 16px;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.proximity-bucket__fill {
    height: 100%;
    background: var(--color-accent);
    border-radius: var(--radius-sm);
}

.proximity-bucket__count {
    width: 30px;
    font-size: var(--text-xs);
    font-weight: 600;
    text-align: right;
    flex-shrink: 0;
}

/* Ship Type Distribution */
.ship-type-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.ship-type-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) 0;
}

.ship-type-item__icon {
    font-size: 16px;
    width: 24px;
    text-align: center;
}

.ship-type-item__name {
    flex: 1;
    font-size: var(--text-xs);
}

.ship-type-item__bar {
    width: 60px;
    height: 6px;
    background: var(--color-bg);
    border-radius: 3px;
    overflow: hidden;
}

.ship-type-item__fill {
    height: 100%;
    background: var(--color-accent);
}

.ship-type-item__count {
    width: 30px;
    font-size: var(--text-xs);
    font-weight: 600;
    text-align: right;
}

/* Intelligence Feed in Analytics */
.intelligence-feed {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    max-height: 60vh;
    overflow-y: auto;
    padding-right: var(--space-1);
}

.intelligence-feed::-webkit-scrollbar {
    width: 6px;
}

.intelligence-feed::-webkit-scrollbar-track {
    background: var(--color-bg);
    border-radius: var(--radius-sm);
}

.intelligence-feed::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: var(--radius-sm);
}

.intelligence-feed::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-muted);
}

.intelligence-feed__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-3);
}

.intelligence-feed__title {
    font-size: var(--text-lg);
    font-weight: 700;
}

.intelligence-feed__count {
    background: var(--color-accent);
    color: white;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 700;
}

.intelligence-item {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-3);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-2);
    transition: all var(--duration-fast);
}

.intelligence-item:hover {
    border-color: var(--color-accent);
}

.intelligence-item__icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    background: var(--color-bg-elevated);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.intelligence-item__content {
    flex: 1;
    min-width: 0;
}

.intelligence-item__title {
    font-weight: 600;
    font-size: var(--text-sm);
    margin-bottom: 4px;
}

.intelligence-item__desc {
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
}

.intelligence-item__time {
    font-size: 10px;
    color: var(--color-text-muted);
    white-space: nowrap;
}

.intelligence-item--danger {
    border-left: 3px solid var(--color-danger);
}

.intelligence-item--warning {
    border-left: 3px solid var(--color-warning);
}

.intelligence-item--info {
    border-left: 3px solid var(--color-info);
}