@media (max-width: 768px) {
    :root {
        --sidebar-width: 0px;
    }

    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.2s;
    }

    .sidebar.open {
        transform: translateX(0);
        width: 240px;
    }

    .content {
        margin-left: 0;
        padding: 16px;
    }

    .scan-input {
        font-size: 18px;
        padding: 16px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .scanner-header {
        flex-direction: column;
    }

    .manual-search-panel {
        width: calc(100% - 32px);
    }

    table {
        font-size: 12px;
    }

    th, td {
        padding: 8px 10px;
    }
}