/* Enhanced Home Page Styles */

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-top: var(--space-sm);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.subsection-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
}

/* Performance Overview Charts */
.performance-overview {
    margin-bottom: var(--space-3xl);
}

.chart-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

.chart-container {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    border: 1px solid var(--border-light);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.chart-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    text-align: center;
    color: var(--text-primary);
}

.chart-area {
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: var(--space-md);
}

.chart-area canvas {
    max-width: 100%;
    max-height: 280px;
}

/* Top Models Section */
.top-models {
    margin-bottom: var(--space-3xl);
}

/* Model Categories Grid */
.model-categories {
    margin-bottom: var(--space-3xl);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
}

.category-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-align: center;
    transition: all var(--transition-fast);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
    opacity: 0;
    transition: opacity var(--transition-fast);
    z-index: 1;
}

.category-card:hover::before {
    opacity: 0.05;
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 255, 255, 0.15);
    border-color: var(--brand-primary);
}

.category-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
    position: relative;
    z-index: 2;
}

.category-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
    position: relative;
    z-index: 2;
}

.category-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    position: relative;
    z-index: 2;
}

.category-count {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--brand-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    z-index: 2;
}

/* AI Insights Section */
.ai-insights {
    background: var(--bg-secondary);
    margin: var(--space-3xl) 0;
}

.insights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-3xl);
}

.insight-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    border: 1px solid var(--border-light);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.insight-icon {
    font-size: 2rem;
    margin-bottom: var(--space-md);
}

.insight-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.insight-content {
    color: var(--text-secondary);
}

/* Market Leaders */
.leader-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.leader-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.leader-name {
    font-weight: 600;
    color: var(--text-primary);
}

.leader-score {
    font-size: 0.875rem;
    color: var(--brand-primary);
    font-weight: 600;
}

/* Performance Trends */
.mini-chart {
    height: 100px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    font-size: 0.875rem;
    padding: var(--space-sm);
}

.mini-chart canvas {
    width: 100% !important;
    height: 100% !important;
}

.trend-summary {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.trend-item {
    display: flex;
    justify-content: space-between;
    font-size: 0.875rem;
}

.trend-label {
    color: var(--text-secondary);
}

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

/* Technology Distribution */
.distribution-chart {
    height: 120px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-sm);
}

.distribution-chart canvas {
    width: 100% !important;
    height: 100% !important;
}

.distribution-stats {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.875rem;
}

.stat-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.stat-dot.multimodal {
    background: var(--brand-secondary);
}

.stat-dot.api {
    background: var(--success);
}

.stat-dot.opensource {
    background: var(--warning);
}

/* Pricing Analysis */
.pricing-stats {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.price-range,
.price-median,
.free-models {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.price-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

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

/* AI Timeline */
.ai-timeline {
    margin-top: var(--space-3xl);
}

.timeline-container {
    position: relative;
    padding: var(--space-lg) 0;
}

.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-light);
    transform: translateX(-50%);
}

.timeline-item {
    display: flex;
    align-items: center;
    margin-bottom: var(--space-xl);
    position: relative;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-content {
    flex: 1;
    max-width: 45%;
    background: var(--bg-primary);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.timeline-date {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--brand-primary);
    margin-bottom: var(--space-xs);
}

.timeline-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
}

.timeline-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.timeline-dot {
    position: absolute;
    left: 50%;
    width: 12px;
    height: 12px;
    background: var(--brand-primary);
    border-radius: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

/* Chart Legend */
.chart-legend {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-md);
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--border-light);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.75rem;
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 2px;
}

.legend-label {
    color: var(--text-secondary);
}

/* Enhanced Model Cards */
.model-performance {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
    margin: var(--space-md) 0;
    padding: var(--space-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.performance-metric {
    text-align: center;
}

.metric-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin-bottom: var(--space-xs);
}

.metric-value {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.card-actions {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.card-actions .btn {
    flex: 1;
    text-align: center;
    padding: var(--space-sm);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .chart-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .insights-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .categories-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

@media (max-width: 768px) {
    .chart-grid {
        grid-template-columns: 1fr;
    }
    
    .insights-grid {
        grid-template-columns: 1fr;
    }
    
    .categories-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    }
    
    .timeline-item {
        flex-direction: column !important;
        align-items: flex-start;
    }
    
    .timeline-content {
        max-width: 100%;
        margin-left: var(--space-lg);
    }
    
    .timeline-line {
        left: 6px;
    }
    
    .timeline-dot {
        left: 6px;
    }
    
    .model-performance {
        grid-template-columns: 1fr;
        gap: var(--space-xs);
    }
    
    .card-actions {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .categories-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header {
        margin-bottom: var(--space-xl);
    }
    
    .chart-container {
        padding: var(--space-md);
    }
    
    .insight-card {
        padding: var(--space-md);
    }
}

/* Animation Enhancements */
.chart-container,
.insight-card,
.category-card {
    animation: fadeInUp 0.6s ease-out;
}

.chart-container:nth-child(2) {
    animation-delay: 0.1s;
}

.chart-container:nth-child(3) {
    animation-delay: 0.2s;
}

.insight-card:nth-child(2) {
    animation-delay: 0.1s;
}

.insight-card:nth-child(3) {
    animation-delay: 0.2s;
}

.insight-card:nth-child(4) {
    animation-delay: 0.3s;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Loading States */
.chart-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    gap: var(--space-sm);
    min-height: 200px;
}

.loading-spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-light);
    border-top: 2px solid var(--brand-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Chart Error State */
.chart-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    gap: var(--space-sm);
    min-height: 200px;
    text-align: center;
}

.chart-error-icon {
    font-size: 2rem;
    opacity: 0.5;
}

/* Chart Empty State */
.chart-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    gap: var(--space-sm);
    min-height: 200px;
    text-align: center;
}

.chart-empty-icon {
    font-size: 2rem;
    opacity: 0.5;
}

/* Simple Bar Chart Styles */
.simple-bar-chart {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    width: 100%;
}

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

.bar-label {
    flex: 0 0 120px;
    font-size: 0.875rem;
    color: var(--text-primary);
    font-weight: 500;
    text-align: right;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.bar-container {
    flex: 1;
    height: 24px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    position: relative;
    overflow: hidden;
}

.bar-fill {
    height: 100%;
    border-radius: var(--radius-sm);
    position: relative;
    transition: width 0.6s ease-out;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: var(--space-xs);
}

.intelligence-bar {
    background: linear-gradient(90deg, var(--brand-primary), var(--brand-secondary));
}

.speed-bar {
    background: linear-gradient(90deg, #22c55e, #10b981);
}

.bar-value {
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* Scatter Plot Styles */
.scatter-plot {
    position: relative;
    width: 100%;
    height: 250px;
    padding: var(--space-lg);
}

.scatter-area {
    position: relative;
    width: 100%;
    height: 100%;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
}

.scatter-point {
    position: absolute;
    transform: translate(-50%, -50%);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.scatter-point:hover {
    z-index: 10;
}

.scatter-point:hover .point-dot {
    transform: scale(1.5);
}

.scatter-point:hover .point-label {
    opacity: 1;
    visibility: visible;
}

.point-dot {
    width: 10px;
    height: 10px;
    background: var(--brand-primary);
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    transition: transform var(--transition-fast);
}

.point-label {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-primary);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    margin-bottom: var(--space-xs);
}

.scatter-x-label,
.scatter-y-label {
    position: absolute;
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.scatter-x-label {
    bottom: -var(--space-md);
    left: 50%;
    transform: translateX(-50%);
}

.scatter-y-label {
    top: 50%;
    left: -var(--space-md);
    transform: rotate(-90deg) translateX(-50%);
    transform-origin: 0 0;
}

/* Bar Chart Animation */
.bar-fill {
    animation: growWidth 0.8s ease-out;
}

@keyframes growWidth {
    from {
        width: 0;
    }
}

/* Responsive Chart Adjustments */
@media (max-width: 768px) {
    .bar-label {
        flex: 0 0 80px;
        font-size: 0.75rem;
    }
    
    .scatter-plot {
        height: 200px;
        padding: var(--space-md);
    }
}