* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Inter',"Inter Fallback", -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.8;
            color: #1e293b;
            background: #ffffff;
        }
        
        /* Article Container */
        .article-container {
            max-width: 900px;
            margin: 0 auto;
            padding: 60px 30px;
        }
        
        /* Article Header */
        .article-header {
            margin-bottom: 50px;
            padding-bottom: 40px;
            border-bottom: 3px solid #e2e8f0;
        }
        
        .article-meta {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 25px;
            flex-wrap: wrap;
        }
        
        .meta-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, #eff6ff, #dbeafe);
            color: #2563eb;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        
        .meta-badge svg {
            width: 16px;
            height: 16px;
        }
        
        .article-title {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.2;
            color: #0f172a;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        
        .article-intro {
            font-size: 20px;
            line-height: 1.7;
            color: #475569;
            font-weight: 400;
        }
        
        /* Content Styling */
        .article-content p {
            margin-bottom: 24px;
            font-size: 17px;
            line-height: 1.8;
            color: #334155;
        }
        
        .article-content em {
            font-style: italic;
            color: #2563eb;
            font-weight: 500;
        }
        
        .article-content strong {
            font-weight: 700;
            color: #0f172a;
        }
        
        /* Headings */
        .article-content h2 {
            font-size: 32px;
            font-weight: 700;
            color: #0f172a;
            margin: 50px 0 25px 0;
            line-height: 1.3;
            padding-left: 20px;
            border-left: 4px solid #2563eb;
        }
        
        /* Links */
        .article-content a {
            color: #2563eb;
            text-decoration: none;
            font-weight: 600;
            border-bottom: 2px solid transparent;
            transition: all 0.3s ease;
            padding-bottom: 2px;
        }
        
        .article-content a:hover {
            border-bottom-color: #2563eb;
            color: #1d4ed8;
        }
        
        /* Table Container - Enhanced */
        .table-wrapper {
            margin: 50px 0;
            background: #ffffff;
            border-radius: 16px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
            overflow: hidden;
            border: 1px solid #e2e8f0;
        }
        
        .table-header {
            background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 100%);
            padding: 30px;
            color: #ffffff;
        }
        
        .table-header h3 {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        
        .table-header p {
            font-size: 15px;
            color: #dbeafe;
            line-height: 1.6;
            margin: 0;
        }
        
        .table-scroll {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }
        
        table {
            width: 100%;
            border-collapse: collapse;
            min-width: 800px;
        }
        
        thead {
            background: #f8fafc;
        }
        
        th {
            padding: 20px 18px;
            text-align: left;
            font-weight: 700;
            font-size: 14px;
            color: #0f172a;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            border-bottom: 2px solid #e2e8f0;
        }
        
        tbody tr {
            border-bottom: 1px solid #f1f5f9;
            transition: all 0.3s ease;
        }
        
        tbody tr:hover {
            background: #f8fafc;
        }
        
        tbody tr:last-child {
            border-bottom: none;
        }
        
        td {
            padding: 22px 18px;
            vertical-align: top;
            font-size: 15px;
            color: #334155;
        }
        
        .metric-column {
            font-weight: 700;
            color: #1e3a8a;
            font-size: 16px;
        }
        
        .badge {
            display: inline-block;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 8px;
        }
        
        .high-cost {
            background: #fee2e2;
            color: #991b1b;
        }
        
        .optimized {
            background: #d1fae5;
            color: #065f46;
        }
        
        .low {
            background: #fef3c7;
            color: #92400e;
        }
        
        .high {
            background: #d1fae5;
            color: #065f46;
        }
        
        .positive-impact {
            color: #059669;
            font-weight: 700;
            font-size: 18px;
        }
        
        .negative-impact {
            color: #dc2626;
            font-weight: 700;
            font-size: 18px;
        }
        
        .impact-detail {
            margin-top: 10px;
            font-size: 14px;
            color: #64748b;
            padding-left: 12px;
            border-left: 3px solid #e5e7eb;
            line-height: 1.6;
        }
        
        /* Legend */
        .legend {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 20px;
            padding: 25px;
            background: #f8fafc;
            border-top: 1px solid #e2e8f0;
        }
        
        .legend-item {
            display: flex;
            align-items: center;
            font-size: 13px;
            font-weight: 500;
            color: #475569;
        }
        
        .legend-color {
            width: 18px;
            height: 18px;
            border-radius: 4px;
            margin-right: 8px;
        }
        
        /* Quote/Highlight Box */
        .highlight-box {
            background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
            border-left: 4px solid #2563eb;
            padding: 25px 30px;
            margin: 40px 0;
            border-radius: 0 12px 12px 0;
        }
        
        .highlight-box p {
            margin: 0;
            font-size: 18px;
            line-height: 1.7;
            color: #1e40af;
            font-weight: 500;
        }
        
        /* Key Insight Box */
        .insight-box {
            background: #f8fafc;
            border: 2px solid #e2e8f0;
            border-radius: 12px;
            padding: 30px;
            margin: 40px 0;
        }
        
        .insight-box h3 {
            font-size: 20px;
            font-weight: 700;
            color: #0f172a;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .insight-box h3::before {
            content: '💡';
            font-size: 24px;
        }
        
        .insight-box p {
            margin: 0;
            color: #475569;
        }
        
        /* Responsive */
        @media (max-width: 768px) {
            .article-container {
                padding: 40px 20px;
            }
            
            .article-title {
                font-size: 32px;
            }
            
            .article-intro {
                font-size: 18px;
            }
            
            .article-content h2 {
                font-size: 26px;
                margin: 40px 0 20px 0;
                padding-left: 15px;
            }
            
            .article-content p {
                font-size: 16px;
            }
            
            .table-header h3 {
                font-size: 22px;
            }
            
            th, td {
                padding: 15px 12px;
                font-size: 14px;
            }
            
            .legend {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        
        @media (max-width: 480px) {
            .article-title {
                font-size: 28px;
            }
            
            .article-intro {
                font-size: 16px;
            }
            
            .article-content h2 {
                font-size: 22px;
            }
            
            .highlight-box,
            .insight-box {
                padding: 20px;
            }
        }