@media print {
    .sidebar,
    .sidebar-toggle,
    .toast-container,
    .chart-modal,
    .loading-overlay,
    .btn-export {
        display: none !important;
    }
    
    .main-content {
        margin-left: 0 !important;
        padding: 0 !important;
    }
    
    .section-block {
        page-break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ddd;
    }
    
    .chart-container {
        page-break-inside: avoid;
    }
    
    body {
        background: white;
    }
}