/* Chart-specific styles */

/* Chart containers */
.chart-container {
    background: var(--surface-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-light);
    position: relative;
    min-height: 400px;
}

.chart-container canvas {
    max-height: 350px !important;
}

/* Chart headers */
.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.chart-header h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

/* Chart controls */
.chart-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.chart-controls select,
.chart-controls input {
    background: var(--background-color);
    border: 1px solid var(--border-color);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    transition: border-color 0.2s ease;
}

.chart-controls select:focus,
.chart-controls input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0,102,204,0.2);
}

/* Chart legends */
.chart-legend {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: var(--border-radius-sm);
    flex-shrink: 0;
}

/* Specific chart colors */
.legend-color.line1 { background: var(--primary-color); }
.legend-color.line2 { background: var(--success-color); }
.legend-color.line3 { background: var(--warning-color); }
.legend-color.total { background: var(--info-color); }
.legend-color.target { background: var(--text-muted); }

/* Chart loading states */
.chart-container.loading {
    position: relative;
}

.chart-container.loading::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255,255,255,0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.chart-container.loading::after {
    content: 'Loading...';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    z-index: 11;
}

/* Chart error states */
.chart-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    color: var(--text-muted);
    text-align: center;
}

.chart-error-icon {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.chart-error-message {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-sm);
}

.chart-error-details {
    font-size: var(--font-size-sm);
    opacity: 0.7;
}

/* Chart tooltips (custom) */
.chart-tooltip {
    background: rgba(0,0,0,0.8);
    color: white;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    box-shadow: var(--shadow-medium);
    pointer-events: none;
    z-index: 1000;
}

.chart-tooltip::before {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: rgba(0,0,0,0.8);
}

/* Real-time indicators */
.chart-real-time-indicator {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(76,175,80,0.1);
    border: 1px solid var(--success-color);
    border-radius: var(--border-radius);
    font-size: var(--font-size-xs);
    color: var(--success-color);
}

.chart-real-time-indicator::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--success-color);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

/* Chart zoom controls */
.chart-zoom-controls {
    position: absolute;
    bottom: var(--spacing-sm);
    right: var(--spacing-sm);
    display: flex;
    gap: var(--spacing-xs);
    opacity: 0;
    transition: opacity 0.2s ease;
}

.chart-container:hover .chart-zoom-controls {
    opacity: 1;
}

.chart-zoom-btn {
    width: 24px;
    height: 24px;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: var(--font-size-xs);
    transition: all 0.2s ease;
}

.chart-zoom-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Chart export buttons */
.chart-export-btn {
    background: none;
    border: 1px solid var(--border-color);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    font-size: var(--font-size-xs);
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-secondary);
}

.chart-export-btn:hover {
    background: var(--background-color);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Chart annotations */
.chart-annotation {
    position: absolute;
    background: var(--warning-color);
    color: white;
    padding: var(--spacing-xs);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
    pointer-events: none;
    z-index: 10;
}

.chart-annotation.critical {
    background: var(--error-color);
}

.chart-annotation.info {
    background: var(--info-color);
}

.chart-annotation.success {
    background: var(--success-color);
}

/* Chart trend indicators */
.chart-trend {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.chart-trend-arrow {
    font-size: var(--font-size-base);
}

.chart-trend.up {
    color: var(--success-color);
}

.chart-trend.down {
    color: var(--error-color);
}

.chart-trend.flat {
    color: var(--text-muted);
}

/* Responsive chart behavior */
@media (max-width: 1200px) {
    .chart-container {
        min-height: 300px;
    }
    
    .chart-container canvas {
        max-height: 250px !important;
    }
}

@media (max-width: 768px) {
    .chart-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .chart-controls {
        width: 100%;
        justify-content: flex-end;
    }
    
    .chart-legend {
        width: 100%;
        justify-content: center;
    }
    
    .chart-container {
        min-height: 250px;
        padding: var(--spacing-md);
    }
    
    .chart-container canvas {
        max-height: 200px !important;
    }
}

@media (max-width: 480px) {
    .chart-legend {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }
    
    .legend-item {
        justify-content: space-between;
        width: 100%;
    }
    
    .chart-controls select,
    .chart-controls input {
        font-size: var(--font-size-xs);
        padding: var(--spacing-xs);
    }
}

/* Dark theme adjustments */
[data-theme="dark"] .chart-container {
    background: #2a2a2a;
    border-color: #404040;
}

[data-theme="dark"] .chart-controls select,
[data-theme="dark"] .chart-controls input {
    background: #1a1a1a;
    border-color: #404040;
    color: #ffffff;
}

[data-theme="dark"] .chart-tooltip {
    background: rgba(255,255,255,0.9);
    color: #000000;
}

[data-theme="dark"] .chart-tooltip::before {
    border-top-color: rgba(255,255,255,0.9);
}

/* Print styles */
@media print {
    .chart-container {
        box-shadow: none;
        border: 1px solid #ccc;
        break-inside: avoid;
    }
    
    .chart-controls,
    .chart-zoom-controls,
    .chart-export-btn {
        display: none !important;
    }
    
    .chart-real-time-indicator {
        display: none !important;
    }
}