@media (max-width: 768px) {
    :root {
        --sidebar-width: 200px;
    }

    .sidebar {
        width: var(--sidebar-width);
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .topbar {
        padding: 0.75rem 1rem;
    }

    .topbar h1 {
        font-size: 1.2rem;
    }

    .content-area {
        padding: 1rem;
    }

    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }

    .stat-card .stat-value {
        font-size: 1.5rem;
    }

    .metrics-grid {
        grid-template-columns: 1fr;
    }

    .table-container {
        font-size: 0.8rem;
    }

    th, td {
        padding: 0.5rem;
    }

    .btn {
        padding: 0.4rem 0.75rem;
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    .stat-card {
        padding: 0.75rem;
    }

    .stat-card .stat-value {
        font-size: 1.25rem;
    }
}