/* Responsive Design */
@media (max-width: 992px) {
    .widget-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .main-content {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        position: static;
        display: none;
    }
    
    .sidebar.active {
        display: block;
    }
    
    .content {
        margin-left: 0;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .header-container {
        flex-wrap: wrap;
    }
    
    .nav-menu {
        display: none;
        width: 100%;
        margin-top: 1rem;
    }
    
    .nav-menu.active {
        display: flex;
        flex-direction: column;
    }
    
    .nav-menu li {
        margin: 0.5rem 0;
    }
    
    .widget-container {
        grid-template-columns: 1fr;
    }
    
    .col-md-3,
    .col-md-4,
    .col-md-6 {
        flex: 0 0 100%;
        max-width: 100%;
    }
    
    .row {
        margin-right: 0;
        margin-left: 0;
    }
}

@media (max-width: 576px) {
    .form-container {
        padding: 1rem;
    }
    
    .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }
    
    .table-responsive {
        overflow-x: auto;
    }
    
    .widget-value {
        font-size: 1.5rem;
    }
    
    .card-header,
    .card-body {
        padding: 1rem;
    }
    
    .chart-container {
        height: 250px;
    }
}