/* ===================================================================
   Mobile & Tablet Responsive — < 768px
   =================================================================== */

/* ===== Hamburger button (visible only on mobile) ===== */
.hamburger {
    display: none;
    background: transparent;
    border: 0;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    color: var(--c-text);
    margin-inline-end: 8px;
}

.hamburger:hover {
    background: rgba(0, 0, 0, 0.05);
}

.hamburger .material-symbols-rounded {
    font-size: 28px;
}

/* ===== Sidebar overlay backdrop (for mobile drawer) ===== */
.sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 998;
}

/* ===== Tablet — between 769px and 1024px: shrink padding ===== */
@media (max-width: 1024px) {
    .page {
        padding: 16px;
    }
    .kpi-row {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    .pkpi-grid {
        grid-template-columns: repeat(3, 1fr) !important;
    }
}

/* ===== Mobile — < 768px ===== */
@media (max-width: 768px) {
    .hamburger {
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    /* Sidebar becomes a drawer */
    .sidebar {
        position: fixed;
        top: 0;
        bottom: 0;
        right: 0;  /* RTL: drawer slides from right */
        width: 280px;
        transform: translateX(100%);
        transition: transform 0.25s ease-out;
        z-index: 999;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.2);
    }

    [dir="ltr"] .sidebar {
        right: auto;
        left: 0;
        transform: translateX(-100%);
        box-shadow: 10px 0 30px rgba(0, 0, 0, 0.2);
    }

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

    .sidebar-backdrop.open {
        display: block;
    }

    .app-main {
        margin: 0 !important;
        width: 100%;
    }

    /* Header: stack and shrink */
    .header {
        padding: 8px 12px;
        gap: 6px;
    }

    .header .search-box {
        display: none;  /* Hide search on tiny screens — use search page */
    }

    .header .branch-selector,
    .header .lang-toggle {
        display: none;  /* Free up space */
    }

    /* Pages — less padding */
    .page {
        padding: 12px;
    }

    /* KPI cards — 2 columns on mobile */
    .kpi-row,
    .pkpi-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 10px;
    }

    .kpi-card,
    .pkpi {
        padding: 12px;
    }

    .kpi-value {
        font-size: 18px !important;
    }

    .kpi-label {
        font-size: 11px;
    }

    /* Page head: stack vertically */
    .page-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .page-head .head-actions {
        width: 100%;
        flex-wrap: wrap;
        gap: 6px;
    }

    .page-head .btn {
        font-size: 13px;
        padding: 8px 12px;
    }

    .page-head h1 {
        font-size: 18px !important;
    }

    /* Tables — horizontal scroll instead of squeeze */
    .prod-table-card {
        overflow-x: auto;
    }

    .prod-table {
        min-width: 700px;
    }

    /* Two-col grids become one column */
    .two-col-grid,
    .eod-grid {
        grid-template-columns: 1fr !important;
    }

    /* Form grid 1 column */
    .form-grid {
        grid-template-columns: 1fr !important;
    }

    /* Modal full width */
    .modal-card {
        width: 95% !important;
        padding: 16px !important;
    }

    /* Toast container — full width */
    .toast-container {
        left: 8px !important;
        right: 8px !important;
        max-width: none;
    }

    /* POS specific: stack panels on mobile */
    .pos-shell {
        grid-template-columns: 1fr !important;
        grid-template-rows: auto auto auto;
        gap: 8px;
        padding: 8px;
    }

    .pos-shell .invoice-panel,
    .pos-shell .products-panel,
    .pos-shell .right-panel {
        max-height: 60vh;
        overflow-y: auto;
    }
}

/* ===== Tiny phones — < 380px ===== */
@media (max-width: 380px) {
    .kpi-row,
    .pkpi-grid {
        grid-template-columns: 1fr !important;
    }
}

/* ===== Print: hide chrome ===== */
@media print {
    .sidebar,
    .header,
    .hamburger,
    .sidebar-backdrop,
    .toast-container,
    #blazor-error-ui,
    .page-head .head-actions {
        display: none !important;
    }

    .app-main {
        margin: 0 !important;
    }

    .page {
        padding: 0 !important;
    }
}