* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem;
    text-align: center;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Methodology Callout */
.methodology-callout {
    background: linear-gradient(135deg, #fff3cd 0%, #ffeeba 100%);
    border: 2px solid #ffc107;
    border-radius: 8px;
    padding: 1.5rem;
    margin: 2rem;
    box-shadow: 0 2px 10px rgba(255, 193, 7, 0.2);
}

.methodology-callout h3 {
    color: #856404;
    margin-bottom: 0.8rem;
    font-size: 1.3rem;
}

.methodology-callout p {
    color: #856404;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.methodology-links {
    display: flex;
    gap: 1rem;
    margin: 1rem 0;
    flex-wrap: wrap;
}

.method-link {
    display: inline-block;
    background: #007bff;
    color: white;
    text-decoration: none;
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    font-weight: 500;
    transition: background-color 0.2s ease;
    box-shadow: 0 2px 4px rgba(0, 123, 255, 0.2);
}

.method-link:hover {
    background: #0056b3;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 123, 255, 0.3);
}

.disclaimer {
    font-size: 0.9rem;
    font-style: italic;
    color: #6c757d !important;
    margin-bottom: 0 !important;
}

main {
    width: 100%;
    margin: 2rem 0;
    padding: 0;
}

.full-width-wrapper {
    width: 100%;
    max-width: none;
}

.chart-container {
    width: 100%;
    padding: 0 2rem;
}

.chart-container h2 {
    margin-bottom: 1.5rem;
    color: #2c3e50;
    font-size: 1.8rem;
    text-align: center;
}

.chart-wrapper {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 2rem;
    width: 100%;
    max-width: none;
}

.chart-area {
    height: 700px !important;
    width: 100%;
    position: relative;
}

#timeline-chart {
    width: 100% !important;
    height: 700px !important;
}

/* Insights Section */
.insights {
    margin-top: 3rem;
    padding: 0 2rem;
}

.insights h2 {
    margin-bottom: 1.5rem;
    color: #2c3e50;
    font-size: 1.8rem;
    text-align: center;
}

.insights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
    margin: 0 auto;
}

.insight-card {
    background: white;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    border-left: 4px solid #3498db;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.insight-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.insight-card h3 {
    color: #2c3e50;
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    font-weight: 600;
}

.insight-card p {
    color: #5a5a5a;
    line-height: 1.5;
    margin: 0;
}

/* Different accent colors for variety */
.insight-card:nth-child(1) { border-left-color: #e74c3c; }
.insight-card:nth-child(2) { border-left-color: #27ae60; }
.insight-card:nth-child(3) { border-left-color: #f39c12; }
.insight-card:nth-child(4) { border-left-color: #9b59b6; }
.insight-card:nth-child(5) { border-left-color: #3498db; }
.insight-card:nth-child(6) { border-left-color: #1abc9c; }
.insight-card:nth-child(7) { border-left-color: #34495e; }
.insight-card:nth-child(8) { border-left-color: #e67e22; }

/* Methodology Section */
.methodology-section {
    background: #f8f9fa;
    border-radius: 6px;
    border: 1px solid #e9ecef;
    padding: 0.75rem;
    margin: 1rem 0 0 0;
    font-size: 0.85em;
}

.methodology-section h4 {
    font-size: 1em;
    margin: 0 0 0.5rem 0;
    color: #2c3e50;
}

.methodology-section p {
    margin: 0;
    color: #5a5a5a;
}

.methodology-section a {
    color: #3498db;
}

/* Footer */
.site-footer {
    background-color: #f8f9fa;
    border-top: 1px solid #e9ecef;
    padding: 2rem 0;
    margin-top: 3rem;
}

.footer-wrapper {
    text-align: center;
    padding: 0 2rem;
}

.site-footer p {
    margin: 0;
    color: #6c757d;
}

/* Responsive design */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    .chart-wrapper {
        padding: 1rem;
        height: 400px;
    }
    
    main {
        padding: 0 0.5rem;
    }
    
    .methodology-callout {
        margin: 1rem;
        padding: 1rem;
    }
    
    .methodology-links {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .method-link {
        text-align: center;
    }
    
    .insights-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .insight-card {
        padding: 1rem;
    }
    
    .insights h2 {
        font-size: 1.5rem;
    }
}