/* Enhanced Analytics Page Styles - Black & White Edition */

/* Brand-Integrated Color Palette */
:root {
    --analytics-primary: #3fe1d1;
    --analytics-primary-dark: #2bc4b2;
    --analytics-secondary: #1f2937;
    --analytics-tertiary: #374151;
    --analytics-quaternary: #4b5563;
    --analytics-light: #6b7280;
    --analytics-lighter: #9ca3af;
    --analytics-lightest: #d1d5db;
    
    /* Brand-Integrated Gradients */
    --gradient-brand: linear-gradient(135deg, #3fe1d1 0%, #2bc4b2 100%);
    --gradient-brand-subtle: linear-gradient(135deg, #7fe8de 0%, #bff4ed 100%);
    --gradient-dark: linear-gradient(135deg, #1f2937 0%, #374151 100%);
    --gradient-medium: linear-gradient(135deg, #374151 0%, #4b5563 100%);
    --gradient-light: linear-gradient(135deg, #4b5563 0%, #6b7280 100%);
    --gradient-subtle: linear-gradient(135deg, #f9fafb 0%, #f3f4f6 100%);
    
    /* Glassmorphism - Grayscale */
    --glass-bg: rgba(0, 0, 0, 0.05);
    --glass-border: rgba(0, 0, 0, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.1);
}

/* Enhanced Metrics Grid */
.analytics-metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

/* Enhanced Metric Cards */
.metric-card-enhanced {
    position: relative;
    background: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: 1px solid var(--border-color);
}

.metric-card-enhanced:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.metric-card-enhanced::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-brand);
    transition: height 0.3s ease;
}

.metric-card-enhanced:nth-child(2)::before {
    background: var(--gradient-brand-subtle);
}

.metric-card-enhanced:nth-child(3)::before {
    background: var(--gradient-dark);
}

.metric-card-enhanced:nth-child(4)::before {
    background: var(--gradient-medium);
}

.metric-card-enhanced:hover::before {
    height: 6px;
}

.metric-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-brand);
    opacity: 0.03;
    transition: opacity 0.3s ease;
}

.metric-card-enhanced:nth-child(2) .metric-background {
    background: var(--gradient-brand-subtle);
}

.metric-card-enhanced:nth-child(3) .metric-background {
    background: var(--gradient-dark);
}

.metric-card-enhanced:nth-child(4) .metric-background {
    background: var(--gradient-medium);
}

.metric-card-enhanced:hover .metric-background {
    opacity: 0.05;
}

.metric-inner {
    position: relative;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.metric-icon-wrapper {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--gradient-brand);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.metric-card-enhanced:nth-child(2) .metric-icon-wrapper {
    background: var(--gradient-brand-subtle);
}

.metric-card-enhanced:nth-child(3) .metric-icon-wrapper {
    background: var(--gradient-dark);
}

.metric-card-enhanced:nth-child(4) .metric-icon-wrapper {
    background: var(--gradient-medium);
}

.metric-card-enhanced:hover .metric-icon-wrapper {
    transform: scale(1.1);
}

.metric-icon-wrapper i {
    font-size: 1.25rem;
    color: white;
}

.metric-details {
    flex: 1;
    min-width: 0;
}

.metric-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.2;
    transition: color 0.3s ease;
}

.metric-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0.25rem 0 0.5rem 0;
    font-weight: 500;
}

.metric-trend {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--analytics-primary);
}

.metric-trend.negative {
    color: var(--analytics-secondary);
}

.metric-trend.stable {
    color: var(--analytics-quaternary);
}

.metric-trend i {
    font-size: 0.75rem;
}

/* Enhanced Chart Cards */
.chart-card {
    background: var(--card-bg);
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: all 0.3s ease;
}

.chart-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.chart-header {
    padding: 1.5rem 1.5rem 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--card-bg) 100%);
}

.chart-header h4 {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.chart-period-selector {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.chart-period-selector:hover {
    border-color: var(--analytics-primary);
}

.chart-period-selector:focus {
    outline: none;
    border-color: var(--analytics-primary);
    box-shadow: 0 0 0 3px rgba(63, 225, 209, 0.2);
}

/* Chart Container */
.chart-container {
    padding: 1.5rem;
    position: relative;
    min-height: 300px;
}

.chart-container canvas {
    max-width: 100%;
    height: 250px !important;
}

/* Chart Stats */
.chart-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
    padding: 1rem 1.5rem 1.5rem 1.5rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
    font-weight: 500;
}

.stat-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Category Legend */
.category-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 1rem 1.5rem 1.5rem 1.5rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.legend-color.electronics {
    background: var(--analytics-primary);
}

.legend-color.household {
    background: var(--analytics-primary-dark);
}

.legend-color.sports {
    background: var(--analytics-quaternary);
}

.legend-color.other {
    background: var(--analytics-light);
}

/* Analytics Grid Layout */
.analytics-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.analytics-left-column,
.analytics-right-column {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Performance List */
.performance-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1.5rem;
}

.performance-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
}

.performance-item:hover {
    background: var(--bg-tertiary);
    transform: translateX(4px);
}

.product-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.product-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.product-asin {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.performance-metrics {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.metric-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.metric-value {
    font-weight: 600;
    color: var(--text-primary);
}

.metric-change {
    font-size: 0.75rem;
    font-weight: 600;
}

.metric-change.positive {
    color: var(--analytics-primary);
}

.metric-change.negative {
    color: var(--analytics-secondary);
}

/* A2A Flip Analysis */
.flip-analysis {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.flip-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
}

.flip-metric {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.flip-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    text-align: center;
}

.flip-value {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.flip-opportunities {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.flip-opportunity {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
}

.flip-opportunity:hover {
    background: var(--bg-tertiary);
    border-color: var(--analytics-primary);
}

.opportunity-route {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.opportunity-margin {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--analytics-primary);
}

/* Loading Animation */
@keyframes pulse {
    0% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
    100% {
        opacity: 1;
    }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .analytics-metrics-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .analytics-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .metric-inner {
        padding: 1rem;
    }
    
    .metric-value {
        font-size: 1.5rem;
    }
    
    .chart-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .flip-summary {
        grid-template-columns: 1fr;
    }
}

/* Dark Mode Enhancements */
[data-theme="dark"] {
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
    
    /* Brand color adjustments for dark mode */
    --analytics-primary: #3fe1d1;
    --analytics-primary-dark: #2bc4b2;
}

[data-theme="dark"] .metric-card-enhanced {
    background: var(--bg-secondary);
    border-color: var(--border-color);
}

[data-theme="dark"] .chart-card {
    background: var(--bg-secondary);
    border-color: var(--border-color);
}

[data-theme="dark"] .chart-header {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
}