@media (max-width: 1200px) {
    .dashboard-grid { grid-template-columns: repeat(2, 1fr); }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .kanban-board { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 992px) {
    .sidebar {
        transform: translateX(-100%);
        z-index: 200;
    }

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

    .topbar {
        left: 0;
    }

    .main-content {
        margin-left: 0;
        width: 100%;
    }

    .menu-toggle {
        display: block;
    }

    .dashboard-charts {
        grid-template-columns: 1fr;
    }

    .settings-layout {
        grid-template-columns: 1fr;
    }

    .settings-nav {
        flex-direction: row;
        overflow-x: auto;
        padding-bottom: var(--sp-sm);
    }

    .report-summary {
        grid-template-columns: 1fr;
    }

    .invoice-header-info {
        grid-template-columns: 1fr;
    }

    /* Modal overlay for sidebar on mobile */
    .sidebar-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 150;
    }

    .sidebar-overlay.active {
        display: block;
    }
}

@media (max-width: 768px) {
    .dashboard-grid { grid-template-columns: 1fr; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .kanban-board { grid-template-columns: 1fr; }
    .plans-grid { grid-template-columns: 1fr; }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .search-input {
        max-width: 100%;
    }

    .modal {
        max-width: 100%;
        margin: var(--sp-md);
        max-height: calc(100vh - var(--sp-xl));
    }

    .main-content {
        padding: var(--sp-md);
    }

    .topbar {
        padding: 0 var(--sp-md);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .client-header {
        flex-direction: column;
        text-align: center;
    }

    .client-meta {
        justify-content: center;
    }

    .ip-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    .topbar-user .user-info {
        display: none;
    }

    .login-card {
        padding: var(--sp-lg);
        margin: var(--sp-md);
    }

    .pagination {
        flex-direction: column;
        gap: var(--sp-sm);
    }
}