@media (max-width: 768px) {
    .auth-container {
        margin: 20px;
        padding: 20px;
    }

    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
        border-left: none;
        border-bottom: 3px solid #ff0000;
    }

    .sidebar-header {
        padding: 20px;
    }

    .sidebar-logo {
        width: 60px;
        height: 60px;
    }

    .sidebar h2 {
        font-size: 1.5em;
    }

    .nav-menu {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        padding: 15px;
    }

    .nav-item {
        flex: 1;
        min-width: 120px;
        margin: 0;
        padding: 12px 15px;
        font-size: 14px;
        justify-content: center;
    }

    .nav-text {
        text-align: center;
    }

    .logout-item {
        width: 100%;
        margin: 10px 0 20px;
        justify-content: center;
    }

    .main-content {
        margin-right: 0;
        padding: 20px;
    }

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

    .item-actions {
        flex-direction: column;
    }
}