@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    header h1 {
        font-size: 2.5rem;
    }
    
    .section-header,
    .summary-section,
    .issues-section,
    .results-header {
        padding-left: 20px;
        padding-right: 20px;
    }
    
    .editor-container {
        padding: 16px 20px;
    }
    
    .action-section {
        padding: 16px 20px 20px;
        flex-direction: column;
        align-items: stretch;
    }
    
    .primary-btn {
        width: 100%;
        margin-bottom: 16px;
    }
    
    .file-actions {
        justify-content: center;
    }
    
    .overall-score {
        flex-direction: column;
        text-align: center;
    }
    
    .results-header {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }
    
    .results-actions {
        justify-content: center;
        margin-top: 16px;
    }
    
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .metric-value {
        font-size: 2rem;
    }
    
    .category-header {
        padding: 16px;
    }
    
    .issue-list li {
        padding: 12px;
    }
}

@media (max-width: 480px) {
    .metrics-grid {
        grid-template-columns: 1fr;
    }
    
    .file-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .secondary-btn {
        width: 100%;
    }
}