/* ============================================================
   F&B Modal — 4-Panel Layout
   ============================================================ */

/* 4-column grid layout with resizable panels */
.fnb-modal-layout {
    display: flex;
    flex: 1;
    overflow: hidden;
    position: relative;
}
.fnb-panel-categories { width: var(--fnb-p1-width, 100px); min-width: 60px; }
.fnb-panel-items { width: var(--fnb-p2-width, 200px); min-width: 100px; }
.fnb-panel-orders { flex: 1; min-width: 150px; }
.fnb-panel-right { width: 310px; min-width: 310px; max-width: 310px; flex-shrink: 0; }

/* Drag resizer handle */
.fnb-resizer {
    width: 5px;
    cursor: col-resize;
    background: transparent;
    flex-shrink: 0;
    position: relative;
    z-index: 2;
    transition: background 0.15s;
}
.fnb-resizer:hover,
.fnb-resizer.active {
    background: rgba(var(--theme-accent-rgb),0.4);
}
.fnb-resizer::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 3px;
    height: 28px;
    border-radius: 2px;
    background: rgba(255,255,255,0.15);
    transition: background 0.15s;
}
.fnb-resizer:hover::after,
.fnb-resizer.active::after {
    background: rgba(var(--theme-accent-rgb),0.6);
}

/* ============================================================
   Panel Base
   ============================================================ */
.fnb-panel {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border-right: 1px solid rgba(var(--theme-accent-rgb),0.15);
}
.fnb-panel:last-child {
    border-right: none;
}

/* Panel headers */
.fnb-panel-header {
    padding: 0.5rem 0.6rem;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--theme-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    border-bottom: 1px solid rgba(var(--theme-accent-rgb),0.15);
    flex-shrink: 0;
    background: rgba(0,0,0,0.15);
}

/* ============================================================
   Panel 1: Categories
   ============================================================ */
.fnb-panel-categories {
    background: rgba(0,0,0,0.1);
}

.fnb-categories-list {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
}

.fnb-category-item {
    padding: 0.5rem 0.4rem;
    font-size: 0.78rem;
    color: var(--theme-text-secondary);
    cursor: pointer;
    border-left: 3px solid transparent;
    transition: all 0.15s;
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
    line-height: 1.3;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}
.fnb-category-name {
    flex: 1;
    min-width: 0;
}
.fnb-category-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 4px;
    border-radius: 9px;
    background: rgba(255,255,255,0.1);
    color: var(--theme-text-muted);
    font-size: 0.62rem;
    font-weight: 600;
    flex-shrink: 0;
}
.fnb-category-item.active .fnb-category-count {
    background: rgba(var(--theme-accent-rgb),0.2);
    color: var(--theme-accent);
}
.fnb-category-item:hover {
    background: rgba(var(--theme-accent-rgb),0.06);
    color: var(--theme-text-primary);
}
.fnb-category-item.active {
    border-left-color: var(--theme-accent);
    color: var(--theme-accent);
    background: rgba(var(--theme-accent-rgb),0.1);
    font-weight: 600;
}

/* ============================================================
   Panel 2: Items Grid
   ============================================================ */
.fnb-panel-items {
    background: rgba(0,0,0,0.05);
}

.fnb-items-grid {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 8px 0.3rem 0.3rem 0.3rem;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.25rem;
    align-content: start;
}

.fnb-item-card {
    background: var(--theme-overlay-dark);
    border: 1px solid var(--theme-border-subtle);
    border-radius: 5px;
    padding: 0.35rem 0.25rem;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.15rem;
    min-height: 46px;
    justify-content: center;
}
.fnb-item-card:hover {
    border-color: var(--theme-accent);
    background: rgba(var(--theme-accent-rgb),0.06);
}
.fnb-item-card .fnb-item-card-name {
    font-size: 0.74rem;
    color: var(--theme-text-secondary);
    line-height: 1.3;
    word-wrap: break-word;
    overflow-wrap: break-word;
}
.fnb-item-card .fnb-item-card-price {
    font-size: 0.7rem;
    color: var(--theme-accent);
    font-weight: 600;
}
.fnb-item-card.out-of-stock {
    opacity: 0.4;
    pointer-events: none;
}

/* ============================================================
   Panel 3: Orders
   ============================================================ */
.fnb-panel-orders {
    background: rgba(0,0,0,0.05);
}

.fnb-orders-list {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 0.4rem;
}

/* Sort toggle button */
.fnb-sort-btn {
    background: none;
    border: 1px solid var(--theme-border);
    border-radius: 4px;
    color: var(--theme-text-muted);
    padding: 0.2rem 0.35rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    transition: color 0.15s, border-color 0.15s;
}
.fnb-sort-btn:hover {
    color: var(--theme-accent);
    border-color: var(--theme-accent);
}

/* Order group card — matches right-panel V2 card style */
.fnb-order-group {
    margin-bottom: 0.4rem;
    background: linear-gradient(135deg, rgba(var(--theme-accent-rgb),0.08) 0%, rgba(var(--theme-accent-rgb),0.03) 100%);
    border: 1px solid rgba(var(--theme-accent-rgb),0.2);
    border-radius: 8px;
    overflow: hidden;
}
.fnb-order-group.status-draft {
    border-color: rgba(234,179,8,0.25);
    background: linear-gradient(135deg, rgba(234,179,8,0.06) 0%, rgba(234,179,8,0.02) 100%);
}
.fnb-order-group.status-submitted {
    border-color: rgba(59,130,246,0.25);
    background: linear-gradient(135deg, rgba(59,130,246,0.06) 0%, rgba(59,130,246,0.02) 100%);
}
.fnb-order-group.status-paid {
    border-color: rgba(var(--theme-accent-rgb),0.15);
    opacity: 0.6;
}
.fnb-order-group.status-partial_paid {
    border-color: rgba(168,85,247,0.25);
    background: linear-gradient(135deg, rgba(168,85,247,0.06) 0%, rgba(168,85,247,0.02) 100%);
}
.fnb-order-group-header {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.4rem 0.55rem;
    font-size: 0.75rem;
    color: var(--theme-text-muted);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    cursor: pointer;
    user-select: none;
}
.fnb-order-group-items {
    padding: 0.2rem 0.3rem;
}

/* Status badges */
.fnb-status-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.1rem 0.4rem;
    border-radius: 3px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.fnb-status-badge.draft {
    background: rgba(234,179,8,0.15);
    color: var(--theme-warning);
    border: 1px solid rgba(234,179,8,0.3);
}
.fnb-status-badge.submitted {
    background: rgba(59,130,246,0.15);
    color: var(--theme-info);
    border: 1px solid rgba(59,130,246,0.3);
}
.fnb-status-badge.paid {
    background: rgba(var(--theme-accent-rgb),0.15);
    color: var(--theme-accent);
    border: 1px solid rgba(var(--theme-accent-rgb),0.3);
}
.fnb-status-badge.partial_paid {
    background: rgba(168,85,247,0.15);
    color: var(--theme-purple);
    border: 1px solid rgba(168,85,247,0.3);
}
.fnb-status-badge.cancelled {
    background: rgba(220,38,38,0.15);
    color: var(--theme-danger);
    border: 1px solid rgba(220,38,38,0.3);
}

/* Order has cancelled items — red border */
.fnb-order-group.has-cancelled {
    border-color: rgba(220,38,38,0.4);
    background: linear-gradient(135deg, rgba(220,38,38,0.06) 0%, rgba(220,38,38,0.02) 100%);
}
/* Pending cancellation visual */
.fnb-order-group.pending-cancel {
    border-color: rgba(220,38,38,0.4);
}
.fnb-order-item.pending-cancel .fnb-order-item-name {
    text-decoration: line-through;
    color: var(--theme-text-muted);
}

/* Order item row */
.fnb-order-item {
    display: flex;
    align-items: baseline;
    gap: 0.4rem;
    padding: 0.5rem;
    border-radius: 4px;
    margin-bottom: 0.2rem;
    transition: background 0.15s;
}
.fnb-order-item.draft-item {
    align-items: flex-start;
}
.fnb-order-item:hover {
    background: rgba(255,255,255,0.03);
}

/* Reprint/Cancel links — hidden by default, visible on hover */
.fnb-hover-action {
    display: none !important;
}
.fnb-order-group-header:hover .fnb-hover-action,
.fnb-order-item:hover .fnb-hover-action {
    display: inline !important;
}
.fnb-order-item .fnb-order-item-name {
    flex: 1;
    font-size: 0.9rem;
    color: var(--theme-text-secondary);
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    line-height: 1.6;
}
.fnb-order-item .fnb-order-item-qty {
    font-size: 0.9rem;
    color: var(--theme-text-muted);
    flex-shrink: 0;
    line-height: 1.6;
}
.fnb-order-item .fnb-order-item-total {
    font-size: 0.9rem;
    color: var(--theme-text-primary);
    flex-shrink: 0;
    min-width: 55px;
    text-align: right;
    line-height: 1.6;
}
.fnb-order-item input[type="checkbox"] {
    margin-top: 0.2rem;
}

/* Qty controls */
.fnb-qty-controls {
    display: flex;
    align-items: center;
    gap: 0.15rem;
    flex-shrink: 0;
}
/* Matches V2 POS modal button styles */
.fnb-qty-btn {
    width: 20px;
    height: 20px;
    border-radius: 3px;
    border: 1px solid var(--theme-border-subtle);
    background: var(--theme-overlay-subtle);
    color: var(--theme-text-bright);
    font-size: 11px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    line-height: 1;
}
.fnb-qty-btn:hover {
    border-color: var(--theme-accent);
    color: var(--theme-accent);
}
.fnb-qty-btn.remove {
    border-color: var(--theme-danger);
    color: var(--theme-danger);
}
.fnb-qty-btn.remove:hover {
    background: rgba(220,38,38,0.15);
}
.fnb-qty-btn.plus {
    border-color: var(--theme-accent);
    background: var(--theme-card);
    color: var(--theme-accent);
}
.fnb-qty-btn.addline {
    width: auto;
    border-color: var(--theme-info);
    background: #1a1f2e;
    color: var(--theme-info);
    font-size: 9px;
    padding: 0 4px;
    white-space: nowrap;
}

/* ============================================================
   Panel 4: Right Panel
   ============================================================ */
.fnb-panel-right {
    display: flex;
    flex-direction: column;
    padding: 0.5rem 0.6rem;
    padding-bottom: 0;
    overflow: hidden;
    border-right: none;
}

.fnb-right-scroll {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    min-height: 0;
}

/* ============================================================
   Item Configuration Popup (overlay)
   @DEPRECATED The outer overlay/popup/header/body/footer wrappers
   below are no longer used — fnb-item-config.js now builds the modal
   using the standard .modal / .modal-content / .modal-header /
   .modal-body / .modal-footer structure (ui-design-standards.md).
   Only the content helpers below (.fnb-config-section, .fnb-config-label,
   .fnb-chip, .fnb-chip-group, .fnb-add-to-order-btn) are still in use.
   Kept temporarily for any stale cached JS; safe to remove later.
   ============================================================ */
.fnb-item-config-overlay {
    position: fixed;
    inset: 0;
    background: var(--theme-overlay-dim);
    z-index: 10010;
    display: flex;
    align-items: center;
    justify-content: center;
}
.fnb-item-config-popup {
    width: 380px;
    max-width: 95vw;
    background: var(--theme-overlay-dark);
    border: 1px solid rgba(var(--theme-accent-rgb),0.3);
    border-radius: 10px;
    box-shadow: 0 12px 40px rgba(0,0,0,0.7);
    overflow: hidden;
}
.fnb-item-config-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 0.75rem;
    border-bottom: 1px solid rgba(var(--theme-accent-rgb),0.15);
}
.fnb-item-config-header h4 {
    margin: 0;
    font-size: 0.88rem;
    color: var(--theme-text-primary);
    font-weight: 600;
}
.fnb-item-config-body {
    padding: 0.75rem;
}
.fnb-item-config-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 0.75rem;
    border-top: 1px solid rgba(255,255,255,0.06);
}

/* Config section labels */
.fnb-config-section { }
.fnb-config-label {
    color: var(--theme-text-muted);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 0.3rem;
}

/* Chip group (flex wrap) */
.fnb-chip-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
}

/* Chip pill */
.fnb-chip {
    display: inline-block;
    padding: 0.3rem 0.65rem;
    background: var(--theme-overlay-subtle);
    border: 1px solid #404040;
    border-radius: 20px;
    color: var(--theme-text-secondary);
    font-size: 0.76rem;
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s, background 0.15s;
    user-select: none;
    white-space: nowrap;
}
.fnb-chip:hover {
    border-color: var(--theme-accent);
    color: var(--theme-accent);
}
.fnb-chip.selected {
    background: rgba(var(--theme-accent-rgb),0.15);
    border-color: var(--theme-accent);
    color: var(--theme-accent);
}

/* Add to Order button */
.fnb-add-to-order-btn {
    background: var(--theme-accent);
    color: var(--theme-text-bright);
    border: none;
    border-radius: 6px;
    padding: 0.5rem 1rem;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s;
}
.fnb-add-to-order-btn:hover {
    background: var(--theme-accent-hover);
}
.fnb-add-to-order-btn:disabled {
    background: var(--theme-border);
    cursor: not-allowed;
    opacity: 0.6;
}

/* Config body scrollbar */
.fnb-item-config-body::-webkit-scrollbar {
    width: 4px;
}
.fnb-item-config-body::-webkit-scrollbar-track {
    background: transparent;
}
.fnb-item-config-body::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.1);
    border-radius: 2px;
}

/* ============================================================
   Checkout button hover
   ============================================================ */
#fnbCheckoutBtn:hover {
    background: var(--theme-accent-hover);
}
#fnbCheckoutBtn:disabled {
    background: var(--theme-border);
    cursor: not-allowed;
    opacity: 0.6;
}

/* ============================================================
   Scrollbar styling for panels
   ============================================================ */
.fnb-categories-list::-webkit-scrollbar,
.fnb-items-grid::-webkit-scrollbar,
.fnb-orders-list::-webkit-scrollbar,
.fnb-right-scroll::-webkit-scrollbar {
    width: 4px;
}
.fnb-categories-list::-webkit-scrollbar-track,
.fnb-items-grid::-webkit-scrollbar-track,
.fnb-orders-list::-webkit-scrollbar-track,
.fnb-right-scroll::-webkit-scrollbar-track {
    background: transparent;
}
.fnb-categories-list::-webkit-scrollbar-thumb,
.fnb-items-grid::-webkit-scrollbar-thumb,
.fnb-orders-list::-webkit-scrollbar-thumb,
.fnb-right-scroll::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.1);
    border-radius: 2px;
}
.fnb-categories-list::-webkit-scrollbar-thumb:hover,
.fnb-items-grid::-webkit-scrollbar-thumb:hover,
.fnb-orders-list::-webkit-scrollbar-thumb:hover,
.fnb-right-scroll::-webkit-scrollbar-thumb:hover {
    background: rgba(255,255,255,0.2);
}

/* ============================================================
   Responsive: collapse to 2-row layout on smaller screens
   ============================================================ */
@media (max-width: 900px) {
    .fnb-modal-layout {
        flex-wrap: wrap;
    }
    .fnb-panel-categories { width: 80px !important; }
    .fnb-panel-items { width: 160px !important; }
    .fnb-panel-right {
        width: 100% !important;
        flex-direction: row;
        flex-wrap: wrap;
        max-height: 200px;
        overflow-y: auto;
    }
    .fnb-resizer { display: none; }
}