.container {
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .section-title {
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #3498db;
            color: #2c3e50;
            font-size: 1.5rem;
        }
        
        .table-container {
            overflow-x: auto;
            margin-bottom: 30px;
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            background-color: white;
        }
        
        table {
            width: 100%;
            border-collapse: collapse;
            min-width: 800px; /* Ensures table doesn't get too narrow on mobile */
        }
        
        th, td {
            padding: 12px 15px;
            text-align: left;
            border-bottom: 1px solid #e1e1e1;
        }
        
        th {
            background-color: #3498db;
            color: white;
            font-weight: 600;
            position: sticky;
            top: 0;
        }
        
        tr:nth-child(even) {
            background-color: #f8f9fa;
        }
        
        tr:hover {
            background-color: #e8f4fc;
        }
        
        .letter-cell {
            font-weight: bold;
            font-size: 1.2rem;
            color: #2c3e50;
        }
        
        .audio-placeholder {
            color: #3498db;
            font-weight: bold;
            cursor: pointer;
        }
        
        .audio-placeholder:hover {
            color: #2980b9;
        }
        
        .example-word {
            font-weight: bold;
            color: #e74c3c;
        }
        
        .note {
            background-color: #fff9e6;
            padding: 15px;
            border-left: 4px solid #f39c12;
            margin: 20px 0;
            border-radius: 4px;
        }
        
        @media (max-width: 768px) {
            body {
                padding: 10px;
            }
            
            h1 {
                font-size: 1.8rem;
            }
            
            th, td {
                padding: 10px 8px;
                font-size: 0.9rem;
            }
            
            .section-title {
                font-size: 1.3rem;
            }
        }
        
        @media (max-width: 480px) {
            th, td {
                padding: 8px 6px;
                font-size: 0.85rem;
            }
            
            .letter-cell {
                font-size: 1.1rem;
            }
        }