/**
 * TOOKO POS - Point of Sale Styles
 * Dark theme optimized for touch interfaces
 */

/* ============================================
   CSS Variables
============================================ */
:root {
    /* Colors */
    --color-primary: #10b981;
    --color-primary-hover: #059669;
    --color-primary-light: rgba(16, 185, 129, 0.1);
    --color-secondary: #6366f1;
    --color-danger: #ef4444;
    --color-danger-hover: #dc2626;
    --color-warning: #f59e0b;
    --color-success: #22c55e;
    --color-info: #3b82f6;

    /* Dark Theme */
    --bg-primary: #111827;
    --bg-secondary: #1f2937;
    --bg-tertiary: #374151;
    --bg-card: #1f2937;
    --bg-input: #374151;
    --bg-hover: #4b5563;

    /* Text */
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --text-inverse: #111827;

    /* Borders */
    --border-color: #374151;
    --border-radius: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.5);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;

    /* Z-index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal-backdrop: 300;
    --z-modal: 400;
    --z-toast: 500;
}

/* ============================================
   Reset & Base
============================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow: hidden;
    overscroll-behavior: none;
    user-select: none;
    -webkit-user-select: none;
}

/* Prevent pull-to-refresh and overscroll */
html, body {
    position: fixed;
    width: 100%;
    height: 100%;
}

/* ============================================
   Layout
============================================ */
.pos-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
}

.pos-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
    min-height: 56px;
}

.pos-header__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.pos-header__logo img {
    height: 32px;
    width: auto;
}

.pos-header__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary);
}

.pos-header__actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.pos-main {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Products Panel */
.pos-products {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--bg-primary);
}

.pos-products__header {
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.pos-search {
    position: relative;
    display: flex;
    gap: var(--spacing-sm);
}

.pos-search__input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    padding-left: 2.5rem;
    font-size: var(--font-size-base);
    color: var(--text-primary);
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    outline: none;
    transition: border-color var(--transition-fast);
}

.pos-search__input:focus {
    border-color: var(--color-primary);
}

.pos-search__input::placeholder {
    color: var(--text-muted);
}

.pos-search__icon {
    position: absolute;
    left: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--text-muted);
    pointer-events: none;
}

.pos-search__scan-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--color-primary);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.pos-search__scan-btn:hover {
    background: var(--color-primary-hover);
}

.pos-search__scan-btn svg {
    width: 24px;
    height: 24px;
    color: white;
}

/* Categories */
.pos-categories {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    overflow-x: auto;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.pos-categories::-webkit-scrollbar {
    display: none;
}

.pos-category {
    flex-shrink: 0;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    border: 1px solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.pos-category:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.pos-category.active {
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-color: var(--color-primary);
}

/* Product Grid */
.pos-products__grid {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

@media (min-width: 768px) {
    .pos-products__grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    }
}

@media (min-width: 1024px) {
    .pos-products__grid {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    }
}

/* Product Card */
.pos-product {
    display: flex;
    flex-direction: column;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pos-product:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.pos-product:active {
    transform: translateY(0);
}

.pos-product.out-of-stock {
    opacity: 0.5;
    pointer-events: none;
}

.pos-product__image {
    position: relative;
    width: 100%;
    padding-top: 75%;
    background: var(--bg-tertiary);
    overflow: hidden;
}

.pos-product__image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.pos-product__image-placeholder {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 48px;
    height: 48px;
    color: var(--text-muted);
}

.pos-product__badge {
    position: absolute;
    top: var(--spacing-xs);
    right: var(--spacing-xs);
    padding: 2px 6px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    background: var(--color-danger);
    color: white;
    border-radius: var(--border-radius);
}

.pos-product__badge.low-stock {
    background: var(--color-warning);
}

.pos-product__info {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: var(--spacing-sm);
}

.pos-product__name {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.pos-product__sku {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-top: 2px;
}

.pos-product__price {
    margin-top: auto;
    padding-top: var(--spacing-xs);
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-primary);
}

/* ============================================
   Cart Panel
============================================ */
.pos-cart {
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 400px;
    height: 100%;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    overflow: hidden;
}

@media (max-width: 767px) {
    .pos-cart {
        position: fixed;
        top: 0;
        right: -100%;
        bottom: 0;
        z-index: var(--z-modal);
        max-width: 100%;
        transition: right var(--transition-normal);
    }

    .pos-cart.open {
        right: 0;
    }

    .pos-cart-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: calc(var(--z-modal) - 1);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
    }

    .pos-cart-overlay.open {
        opacity: 1;
        visibility: visible;
    }
}

.pos-cart__header {
    display: flex;
    flex-shrink: 0;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.pos-cart__header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.pos-cart__icon {
    width: 28px;
    height: 28px;
    color: var(--color-primary);
}

.pos-cart__count-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    padding: 0 6px;
    background: var(--color-primary);
    color: white;
    border-radius: 12px;
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.pos-cart__count-badge:empty,
.pos-cart__count-badge[data-count="0"] {
    display: none;
}

.pos-cart__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.pos-cart__close {
    display: none;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
}

@media (max-width: 767px) {
    .pos-cart__close {
        display: flex;
    }
}

.pos-cart__close svg {
    width: 24px;
    height: 24px;
}

/* Customer Selection */
.pos-customer {
    flex-shrink: 0;
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.pos-customer__btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pos-customer__btn:hover {
    border-color: var(--color-primary);
    color: var(--text-primary);
}

.pos-customer__btn.selected {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.pos-customer__btn svg {
    width: 20px;
    height: 20px;
}

.pos-customer__info {
    flex: 1;
    text-align: left;
}

.pos-customer__name {
    font-weight: 500;
    color: var(--text-primary);
}

.pos-customer__points {
    font-size: var(--font-size-xs);
    color: var(--color-primary);
}

/* Credit display in customer button */
.pos-customer__credit {
    font-size: 11px;
    color: var(--color-success);
    font-weight: 500;
}

/* Cart Items */
.pos-cart__items {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.pos-cart__empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: var(--spacing-xl);
    color: var(--text-muted);
    text-align: center;
}

.pos-cart__empty svg {
    width: 64px;
    height: 64px;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

/* Cart Item */
.pos-cart-item {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.pos-cart-item__image {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: var(--bg-tertiary);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.pos-cart-item__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.pos-cart-item__info {
    flex: 1;
    min-width: 0;
}

.pos-cart-item__name {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pos-cart-item__price {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.pos-cart-item__subtotal {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-primary);
}

.pos-cart-item__actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.pos-cart-item__qty-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pos-cart-item__qty-btn:hover {
    background: var(--bg-hover);
}

.pos-cart-item__qty-btn.delete {
    color: var(--color-danger);
}

.pos-cart-item__qty-btn svg {
    width: 16px;
    height: 16px;
}

.pos-cart-item__qty {
    min-width: 32px;
    text-align: center;
    font-weight: 600;
    font-size: var(--font-size-sm);
}

/* Cart Totals */
.pos-cart__totals {
    flex-shrink: 0;
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border-color);
}

.pos-cart__total-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.pos-cart__total-row.grand-total {
    padding-top: var(--spacing-sm);
    margin-top: var(--spacing-sm);
    border-top: 1px solid var(--border-color);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
}

.pos-cart__total-row .amount {
    font-weight: 600;
    color: var(--text-primary);
}

.pos-cart__total-row.grand-total .amount {
    color: var(--color-primary);
}

/* Cart Actions */
.pos-cart__actions-top {
    display: flex;
    flex-shrink: 0;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.pos-cart__actions-top .pos-cart__btn {
    padding: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.pos-cart__actions {
    display: flex;
    flex-shrink: 0;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md);
}

.pos-cart__btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pos-cart__btn--secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.pos-cart__btn--secondary:hover {
    background: var(--bg-hover);
}

.pos-cart__btn--primary {
    background: var(--color-primary);
    color: white;
}

.pos-cart__btn--primary:hover {
    background: var(--color-primary-hover);
}

.pos-cart__btn--primary:disabled,
.pos-cart__btn--warning:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pos-cart__btn--warning {
    background: var(--color-warning);
    color: white;
}

.pos-cart__btn--warning:hover:not(:disabled) {
    background: #d97706;
}

.pos-cart__held-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 5px;
    background: var(--color-danger);
    color: white;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 600;
    margin-left: 4px;
}

.pos-cart__btn svg {
    width: 20px;
    height: 20px;
}

/* ============================================
   Modals
============================================ */
.pos-modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: var(--z-modal-backdrop);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.pos-modal-backdrop.open {
    opacity: 1;
    visibility: visible;
}

.pos-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    width: calc(100% - 2rem);
    max-width: 500px;
    max-height: calc(100vh - 2rem);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-xl);
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.pos-modal.open {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

.pos-modal.fullscreen {
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    transform: none;
    width: 100%;
    max-width: 100%;
    max-height: 100%;
    border-radius: 0;
}

.pos-modal.fullscreen.open {
    transform: none;
}

.pos-modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.pos-modal__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.pos-modal__close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
}

.pos-modal__close:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.pos-modal__close svg {
    width: 24px;
    height: 24px;
}

.pos-modal__body {
    padding: var(--spacing-md);
    overflow-y: auto;
    max-height: calc(100vh - 200px);
}

.pos-modal.fullscreen .pos-modal__body {
    max-height: calc(100vh - 130px);
}

.pos-modal__footer {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.pos-modal__footer--column {
    flex-direction: column;
}

.pos-modal__footer-buttons {
    display: flex;
    gap: var(--spacing-sm);
    width: 100%;
}

.pos-modal__footer .btn {
    flex: 1;
}

/* Split Payment Controls */
.pos-payment__split-controls {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.pos-payment__split-list {
    background: var(--bg-tertiary);
    border-radius: var(--border-radius);
    padding: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.pos-payment__split-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    border-bottom: 1px dashed var(--border-color);
}

.pos-payment__split-item:last-of-type {
    border-bottom: none;
}

.pos-payment__split-total,
.pos-payment__split-remaining {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    font-weight: 600;
}

.pos-payment__split-total {
    color: var(--color-success);
    border-top: 1px solid var(--border-color);
    margin-top: var(--spacing-xs);
    padding-top: var(--spacing-sm);
}

.pos-payment__split-remaining {
    color: var(--color-warning);
}

/* Small Modal Variant */
.pos-modal--small {
    max-width: 400px;
}

/* Confirmation Dialog */
.pos-confirm {
    text-align: center;
    padding: var(--spacing-md) 0;
}

.pos-confirm__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    margin-bottom: var(--spacing-md);
}

.pos-confirm__icon svg {
    width: 36px;
    height: 36px;
}

.pos-confirm__icon--warning {
    background: rgba(245, 158, 11, 0.15);
    color: var(--color-warning);
}

.pos-confirm__icon--danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-danger);
}

.pos-confirm__icon--success {
    background: rgba(34, 197, 94, 0.15);
    color: var(--color-success);
}

.pos-confirm__message {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.pos-confirm__submessage {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* Held Sales List */
.pos-held-sales {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.pos-held-sales__empty {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-muted);
}

.pos-held-sales__empty svg {
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-sm);
    opacity: 0.5;
}

.pos-held-sale {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
}

.pos-held-sale__info {
    flex: 1;
}

.pos-held-sale__customer {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.pos-held-sale__meta {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.pos-held-sale__total {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-primary);
}

.pos-held-sale__actions {
    display: flex;
    gap: var(--spacing-xs);
}

.pos-held-sale__btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pos-held-sale__btn--retrieve {
    background: var(--color-primary);
    color: white;
}

.pos-held-sale__btn--retrieve:hover {
    background: var(--color-primary-hover);
}

.pos-held-sale__btn--delete {
    background: var(--bg-hover);
    color: var(--color-danger);
}

.pos-held-sale__btn--delete:hover {
    background: var(--color-danger);
    color: white;
}

.pos-held-sale__btn svg {
    width: 18px;
    height: 18px;
}

/* ============================================
   Payment Modal
============================================ */
.pos-payment__methods {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.pos-payment__method {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 2px solid transparent;
    border-radius: var(--border-radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pos-payment__method:hover {
    border-color: var(--color-primary);
}

.pos-payment__method.active {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
}

.pos-payment__method svg {
    width: 32px;
    height: 32px;
    color: var(--text-secondary);
}

.pos-payment__method.active svg {
    color: var(--color-primary);
}

/* Disabled payment method */
.pos-payment__method.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Credit available under method button */
.pos-payment__credit-available {
    display: block;
    font-size: 11px;
    color: var(--color-success);
    margin-top: 2px;
}

.pos-payment__method-name {
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-align: center;
}

.pos-payment__amount-section {
    margin-bottom: var(--spacing-lg);
}

.pos-payment__amount-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.pos-payment__amount-input {
    width: 100%;
    padding: var(--spacing-md);
    font-size: var(--font-size-2xl);
    font-weight: 700;
    text-align: center;
    color: var(--color-primary);
    background: var(--bg-input);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    outline: none;
}

.pos-payment__amount-input:focus {
    border-color: var(--color-primary);
}

.pos-payment__quick-amounts {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
}

.pos-payment__quick-amount {
    padding: var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pos-payment__quick-amount:hover {
    background: var(--bg-hover);
}

.pos-payment__numpad {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
}

.pos-payment__numpad-btn {
    padding: var(--spacing-md);
    font-size: var(--font-size-xl);
    font-weight: 600;
    background: var(--bg-tertiary);
    border: none;
    border-radius: var(--border-radius);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pos-payment__numpad-btn:hover {
    background: var(--bg-hover);
}

.pos-payment__numpad-btn:active {
    transform: scale(0.95);
}

.pos-payment__numpad-btn.action {
    background: var(--color-primary);
    color: white;
}

.pos-payment__numpad-btn.action:hover {
    background: var(--color-primary-hover);
}

.pos-payment__numpad-btn.delete {
    color: var(--color-danger);
}

.pos-payment__summary {
    background: var(--bg-tertiary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.pos-payment__summary-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    font-size: var(--font-size-sm);
}

.pos-payment__summary-row.total {
    padding-top: var(--spacing-sm);
    margin-top: var(--spacing-sm);
    border-top: 1px solid var(--border-color);
    font-weight: 700;
    font-size: var(--font-size-lg);
}

.pos-payment__summary-row.change {
    color: var(--color-success);
    font-weight: 600;
}

.pos-payment__summary-row.due {
    color: var(--color-danger);
    font-weight: 600;
}

/* Credit info in payment summary */
.pos-payment__credit-info {
    background: var(--bg-primary);
    border: 1px solid #f59e0b;
    border-radius: 8px;
    padding: 12px;
    margin-top: 12px;
}

.pos-payment__credit-row {
    display: flex;
    justify-content: space-between;
    padding: 4px 0;
    font-size: 13px;
}

.pos-payment__credit-row.highlight {
    font-weight: 600;
    color: var(--color-success);
    padding-top: 8px;
    margin-top: 4px;
    border-top: 1px solid var(--border-color);
}

/* ============================================
   Customer Selection Modal
============================================ */
.pos-customer-search {
    position: relative;
    margin-bottom: var(--spacing-md);
    display: flex;
    gap: var(--spacing-sm);
}

.pos-customer-search .form-input {
    flex: 1;
}

.pos-customer-search .btn {
    flex-shrink: 0;
}

.pos-customer-list {
    max-height: 300px;
    overflow-y: auto;
}

.pos-customer-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pos-customer-item:hover {
    background: var(--bg-tertiary);
}

.pos-customer-item__avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-primary-light);
    border-radius: 50%;
    color: var(--color-primary);
    font-weight: 600;
}

.pos-customer-item__info {
    flex: 1;
}

.pos-customer-item__name {
    font-weight: 500;
}

.pos-customer-item__phone {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.pos-customer-item__points {
    text-align: right;
    font-size: var(--font-size-sm);
    color: var(--color-primary);
}

/* ============================================
   Receipt Preview
============================================ */
.pos-receipt {
    background: white;
    color: #111;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    font-family: 'Courier New', monospace;
    font-size: 14px;
    max-width: 320px;
    margin: 0 auto;
}

.pos-receipt__header {
    text-align: center;
    border-bottom: 1px dashed #ccc;
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.pos-receipt__logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--color-primary);
}

.pos-receipt__shop-name {
    font-weight: 600;
    margin-top: var(--spacing-xs);
}

.pos-receipt__info {
    font-size: 12px;
    color: #666;
}

.pos-receipt__items {
    border-bottom: 1px dashed #ccc;
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.pos-receipt__item {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-xs);
}

.pos-receipt__item-name {
    flex: 1;
}

.pos-receipt__item-qty {
    margin: 0 var(--spacing-sm);
    color: #666;
}

.pos-receipt__totals {
    border-bottom: 1px dashed #ccc;
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.pos-receipt__total-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-xs);
}

.pos-receipt__total-row.grand-total {
    font-weight: bold;
    font-size: 1.1rem;
    margin-top: var(--spacing-sm);
}

.pos-receipt__footer {
    text-align: center;
    font-size: 12px;
    color: #666;
}

/* Credit badge on receipt */
.receipt-credit-badge {
    display: inline-block;
    background: #f59e0b;
    color: white;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 12px;
    margin-top: 8px;
    margin-bottom: 4px;
}

.pos-receipt__barcode {
    margin-top: var(--spacing-md);
    text-align: center;
}

/* ============================================
   Status Indicators
============================================ */
.pos-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
}

.pos-status__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.pos-status--online .pos-status__dot {
    background: var(--color-success);
    box-shadow: 0 0 8px var(--color-success);
}

.pos-status--offline .pos-status__dot {
    background: var(--color-danger);
}

.pos-status--syncing .pos-status__dot {
    background: var(--color-warning);
    animation: pulse 1s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Sync Queue Badge */
.pos-sync-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-warning);
    color: var(--text-inverse);
    border-radius: var(--border-radius);
    font-size: var(--font-size-xs);
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.pos-sync-badge:hover {
    background: #d97706;
}

.pos-sync-badge svg {
    width: 14px;
    height: 14px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ============================================
   Buttons & Form Elements
============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn--primary {
    background: var(--color-primary);
    color: white;
}

.btn--primary:hover:not(:disabled) {
    background: var(--color-primary-hover);
}

.btn--secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn--secondary:hover:not(:disabled) {
    background: var(--bg-hover);
}

.btn--danger {
    background: var(--color-danger);
    color: white;
}

.btn--danger:hover:not(:disabled) {
    background: var(--color-danger-hover);
}

.btn--icon {
    width: 40px;
    height: 40px;
    padding: 0;
}

.btn svg {
    width: 20px;
    height: 20px;
}

/* Form Inputs */
.form-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    outline: none;
    transition: border-color var(--transition-fast);
}

.form-input:focus {
    border-color: var(--color-primary);
}

.form-input::placeholder {
    color: var(--text-muted);
}

/* ============================================
   Toast Notifications
============================================ */
.pos-toast-container {
    position: fixed;
    top: var(--spacing-md);
    right: var(--spacing-md);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.pos-toast {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 300px;
    max-width: 400px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.pos-toast--success {
    border-left: 4px solid var(--color-success);
}

.pos-toast--error {
    border-left: 4px solid var(--color-danger);
}

.pos-toast--warning {
    border-left: 4px solid var(--color-warning);
}

.pos-toast--info {
    border-left: 4px solid var(--color-info);
}

.pos-toast__icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
}

.pos-toast--success .pos-toast__icon {
    color: var(--color-success);
}

.pos-toast--error .pos-toast__icon {
    color: var(--color-danger);
}

.pos-toast--warning .pos-toast__icon {
    color: var(--color-warning);
}

.pos-toast--info .pos-toast__icon {
    color: var(--color-info);
}

.pos-toast__content {
    flex: 1;
}

.pos-toast__title {
    font-weight: 600;
    margin-bottom: 2px;
}

.pos-toast__message {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.pos-toast__close {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
}

/* ============================================
   Loading States
============================================ */
.pos-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
}

.pos-loading__spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.pos-skeleton {
    background: linear-gradient(
        90deg,
        var(--bg-tertiary) 25%,
        var(--bg-hover) 50%,
        var(--bg-tertiary) 75%
    );
    background-size: 200% 100%;
    animation: skeleton 1.5s ease-in-out infinite;
    border-radius: var(--border-radius);
}

@keyframes skeleton {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ============================================
   Utilities
============================================ */
.hidden {
    display: none !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-primary { color: var(--color-primary); }
.text-danger { color: var(--color-danger); }
.text-success { color: var(--color-success); }
.text-muted { color: var(--text-muted); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

/* ============================================
   Print Styles
============================================ */
@media print {
    body {
        background: white;
        color: black;
    }

    .pos-header,
    .pos-products,
    .pos-cart__actions,
    .pos-modal__header,
    .pos-modal__footer,
    .btn {
        display: none !important;
    }

    .pos-receipt {
        box-shadow: none;
        max-width: none;
    }
}

/* ============================================
   Scrollbar Styling
============================================ */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--bg-hover);
}

/* ============================================
   Safe Area (notch) Support
============================================ */
@supports (padding: env(safe-area-inset-top)) {
    .pos-header {
        padding-top: max(var(--spacing-sm), env(safe-area-inset-top));
    }

    .pos-cart__actions {
        padding-bottom: max(var(--spacing-md), env(safe-area-inset-bottom));
    }
}

/* ============================================
   Cash Session Styles
============================================ */
.pos-cash-session {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pos-cash-session:hover {
    background: var(--bg-hover);
}

.pos-cash-session--open {
    background: rgba(34, 197, 94, 0.1);
    border-color: var(--color-success);
    color: var(--color-success);
}

.pos-cash-session--closed {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--color-danger);
    color: var(--color-danger);
}

/* User Menu Dropdown */
.pos-user-menu {
    position: relative;
}

.pos-user-menu__dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: var(--spacing-xs);
    min-width: 220px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-dropdown);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
}

.pos-user-menu__dropdown.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.pos-user-menu__header {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.pos-user-menu__name {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
}

.pos-user-menu__email {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.pos-user-menu__divider {
    height: 1px;
    background: var(--border-color);
}

.pos-user-menu__item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    text-align: left;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.pos-user-menu__item:hover {
    background: var(--bg-hover);
}

.pos-user-menu__item--danger {
    color: var(--color-danger);
}

.pos-user-menu__item svg {
    width: 18px;
    height: 18px;
}

/* Form inside menu */
.pos-user-menu__dropdown form {
    margin: 0;
}

.pos-user-menu__dropdown form .pos-user-menu__item {
    width: 100%;
    border: none;
    font-family: inherit;
}

/* Session Form */
.pos-session-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.pos-session-form__info {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid var(--color-info);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.pos-session-form__info svg {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: var(--color-info);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-label {
    font-weight: 500;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.form-input--lg {
    padding: var(--spacing-md);
    font-size: var(--font-size-xl);
    text-align: center;
}

.form-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.form-input-wrapper .form-input {
    flex: 1;
    padding-right: 70px;
}

.form-input-suffix {
    position: absolute;
    right: var(--spacing-md);
    color: var(--text-muted);
    font-weight: 500;
    font-size: var(--font-size-sm);
    pointer-events: none;
}

.form-input--currency {
    font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
    letter-spacing: 1px;
}

.form-hint {
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    font-weight: 500;
    min-height: 1.25rem;
    margin-top: var(--spacing-xs);
}

/* Session Summary */
.pos-session-summary {
    background: var(--bg-tertiary);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
}

.pos-session-summary__row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.pos-session-summary__row--highlight {
    padding-top: var(--spacing-sm);
    margin-top: var(--spacing-sm);
    border-top: 1px solid var(--border-color);
    font-weight: 600;
    font-size: var(--font-size-base);
    color: var(--text-primary);
}

/* Pending sales warning */
.pos-session-warning {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid var(--color-warning);
    border-radius: var(--border-radius);
    color: var(--color-warning);
    font-size: var(--font-size-sm);
}

.pos-session-warning svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* Payment Breakdown */
.pos-session-breakdown {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    border: 1px solid var(--border-color);
}

.pos-session-breakdown__title {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-sm);
}

.pos-session-breakdown__row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.pos-session-breakdown__row.highlight {
    color: var(--color-success);
    font-weight: 600;
}

.pos-session-breakdown__row.muted {
    color: var(--text-muted);
    font-style: italic;
}

.pos-session-breakdown__note {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px dashed var(--border-color);
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.pos-session-breakdown__note svg {
    flex-shrink: 0;
    color: var(--color-primary);
}

/* Session Difference Display */
.pos-session-difference {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    font-weight: 600;
}

.pos-session-difference.positive {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid var(--color-success);
    color: var(--color-success);
}

.pos-session-difference.negative {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--color-danger);
    color: var(--color-danger);
}

.pos-session-difference.zero {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid var(--color-success);
    color: var(--color-success);
}

/* Session Report */
.pos-report {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.pos-report__header {
    text-align: center;
    padding-bottom: var(--spacing-md);
    border-bottom: 2px dashed var(--border-color);
}

.pos-report__title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
}

.pos-report__subtitle {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

.pos-report__section {
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--border-radius-lg);
}

.pos-report__section-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: var(--spacing-sm);
}

.pos-report__row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    font-size: var(--font-size-sm);
}

.pos-report__row--total {
    padding-top: var(--spacing-sm);
    margin-top: var(--spacing-sm);
    border-top: 1px solid var(--border-color);
    font-weight: 600;
    font-size: var(--font-size-base);
}

.pos-report__row--highlight {
    color: var(--color-primary);
}

.pos-report__row--danger {
    color: var(--color-danger);
}

.pos-report__row--success {
    color: var(--color-success);
}

.pos-report__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.pos-report__stat {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
}

.pos-report__stat-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
}

.pos-report__stat-label {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

/* Large Modal */
.pos-modal--large {
    max-width: 600px;
}

.pos-modal--large .pos-modal__body {
    max-height: 70vh;
    overflow-y: auto;
}

/* ============================================
   Sales History Styles
============================================ */
.pos-history-filters {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.pos-history-filters .form-input {
    flex: 1;
}

.pos-history-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    max-height: 400px;
    overflow-y: auto;
}

.pos-history-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

.pos-history-item:hover {
    background: var(--bg-hover);
    border-color: var(--border-color);
}

.pos-history-item__left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
    min-width: 0;
}

.pos-history-item__avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-primary-light);
    border-radius: 50%;
    color: var(--color-primary);
    font-weight: 600;
    font-size: var(--font-size-sm);
    flex-shrink: 0;
}

.pos-history-item__avatar--empty {
    background: var(--bg-tertiary);
    color: var(--text-muted);
}

.pos-history-item__info {
    flex: 1;
    min-width: 0;
}

.pos-history-item__ref {
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
}

.pos-history-item__meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-top: 2px;
}

.pos-history-item__meta span {
    display: flex;
    align-items: center;
}

.pos-history-item__meta span:not(:last-child)::after {
    content: "•";
    margin-left: var(--spacing-sm);
    color: var(--border-color);
}

.pos-history-item__customer {
    max-width: 120px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pos-history-item__right {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

.pos-history-item__amount {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.pos-history-item__total {
    font-weight: 700;
    color: var(--text-primary);
    font-size: var(--font-size-md);
}

.pos-history-item__items {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.pos-history-item__chevron {
    color: var(--text-muted);
    opacity: 0.5;
    transition: all var(--transition-fast);
}

.pos-history-item:hover .pos-history-item__chevron {
    opacity: 1;
    transform: translateX(2px);
}

/* ============================================
   Sale Detail Styles
============================================ */
.pos-sale-detail {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.pos-sale-detail__header {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.pos-sale-detail__header-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.pos-sale-detail__ref-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-primary);
}

.pos-sale-detail__ref-badge svg {
    color: var(--color-primary);
}

.pos-sale-detail__ref {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
}

.pos-sale-detail__meta {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.pos-sale-detail__meta-item {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.pos-sale-detail__meta-item svg {
    color: var(--text-muted);
}

/* Customer Card */
.pos-sale-detail__customer-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-primary);
}

.pos-sale-detail__customer-avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--color-primary-light);
    border-radius: 50%;
    color: var(--color-primary);
    font-weight: 600;
    font-size: var(--font-size-lg);
}

.pos-sale-detail__customer-info {
    flex: 1;
}

.pos-sale-detail__customer-name {
    font-weight: 600;
    color: var(--text-primary);
}

.pos-sale-detail__customer-phone {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* Section */
.pos-sale-detail__section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.pos-sale-detail__section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.pos-sale-detail__section-header h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0;
}

.pos-sale-detail__count {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    background: var(--bg-tertiary);
    padding: 2px 8px;
    border-radius: 10px;
}

/* Items Table */
.pos-sale-detail__items-table {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.pos-sale-detail__items-header {
    display: grid;
    grid-template-columns: 1fr 50px 80px 90px;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
}

.pos-sale-detail__item-row {
    display: grid;
    grid-template-columns: 1fr 50px 80px 90px;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-top: 1px solid var(--border-color);
    align-items: center;
}

.pos-sale-detail__item-row:hover {
    background: var(--bg-tertiary);
}

.pos-sale-detail__item-info {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.pos-sale-detail__item-name {
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pos-sale-detail__item-sku {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.pos-sale-detail__item-qty {
    text-align: center;
    font-weight: 500;
}

.pos-sale-detail__item-unit {
    text-align: right;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.pos-sale-detail__item-total {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    font-weight: 600;
    color: var(--text-primary);
}

.pos-sale-detail__item-discount {
    font-size: var(--font-size-xs);
    color: var(--color-success);
    font-weight: normal;
}

/* Totals */
.pos-sale-detail__totals {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--border-radius);
}

.pos-sale-detail__totals-row {
    display: flex;
    justify-content: space-between;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.pos-sale-detail__totals-row--discount {
    color: var(--color-success);
}

.pos-sale-detail__totals-row--grand {
    padding-top: var(--spacing-sm);
    margin-top: var(--spacing-xs);
    border-top: 2px solid var(--border-color);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
}

/* Payments */
.pos-sale-detail__payments {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.pos-sale-detail__payment {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--border-radius);
}

.pos-sale-detail__payment-method {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.pos-sale-detail__payment-method svg {
    color: var(--color-primary);
}

.pos-sale-detail__payment-details {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.pos-sale-detail__payment-amount {
    font-weight: 600;
    color: var(--text-primary);
}

.pos-sale-detail__payment-date {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

/* Notes */
.pos-sale-detail__notes {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: rgba(245, 158, 11, 0.1);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-warning);
}

.pos-sale-detail__notes-icon {
    color: var(--color-warning);
    flex-shrink: 0;
}

.pos-sale-detail__notes-text {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-style: italic;
}

/* Badge Large */
.pos-badge--lg {
    padding: 4px 12px;
    font-size: var(--font-size-sm);
}

/* Responsive */
@media (max-width: 480px) {
    .pos-sale-detail__items-header,
    .pos-sale-detail__item-row {
        grid-template-columns: 1fr 40px 70px;
    }

    .pos-sale-detail__items-header span:nth-child(3),
    .pos-sale-detail__item-unit {
        display: none;
    }
}

/* ============================================
   Refund Styles
============================================ */
.pos-refund-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    max-height: 250px;
    overflow-y: auto;
    margin-bottom: var(--spacing-md);
}

.pos-refund-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: var(--border-radius);
}

.pos-refund-item__checkbox {
    width: 20px;
    height: 20px;
    accent-color: var(--color-primary);
}

.pos-refund-item__info {
    flex: 1;
}

.pos-refund-item__name {
    font-weight: 500;
    color: var(--text-primary);
}

.pos-refund-item__qty {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.pos-refund-item__price {
    font-weight: 500;
    color: var(--text-primary);
}

.pos-refund-summary {
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
}

.pos-refund-summary__row {
    display: flex;
    justify-content: space-between;
    font-weight: 600;
    font-size: var(--font-size-lg);
}

.pos-refund-methods {
    display: flex;
    gap: var(--spacing-sm);
}

.pos-refund-method {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pos-refund-method:hover {
    border-color: var(--color-primary);
}

.pos-refund-method.active {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* ============================================
   Discount Styles
============================================ */
.pos-discount-type {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.pos-discount-type__btn {
    flex: 1;
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: var(--font-size-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pos-discount-type__btn:hover {
    border-color: var(--color-primary);
}

.pos-discount-type__btn.active {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* ============================================
   Keyboard Shortcuts Styles
============================================ */
.pos-shortcuts-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.pos-shortcut {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
}

.pos-shortcut kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.pos-shortcut span {
    color: var(--text-secondary);
}

/* ============================================
   Offline Indicator
============================================ */
.pos-offline-indicator {
    position: fixed;
    bottom: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--color-danger);
    color: white;
    border-radius: var(--border-radius-xl);
    font-weight: 600;
    font-size: var(--font-size-sm);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-toast);
    animation: slideUp 0.3s ease;
}

.pos-offline-indicator svg {
    width: 20px;
    height: 20px;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* ============================================
   Cart Item Discount Button
============================================ */
.pos-cart-item__discount-btn {
    padding: var(--spacing-xs);
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
}

.pos-cart-item__discount-btn:hover {
    background: var(--bg-hover);
    color: var(--color-warning);
}

.pos-cart-item__discount-btn svg {
    width: 16px;
    height: 16px;
}

.pos-cart-item__discount-badge {
    font-size: var(--font-size-xs);
    color: var(--color-warning);
    font-weight: 500;
}

/* ============================================
   Quick Actions Bar
============================================ */
.pos-quick-actions {
    display: flex;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-sm);
    overflow-x: auto;
}

.pos-quick-action {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background: var(--bg-secondary);
    border: none;
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    font-size: var(--font-size-xs);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.pos-quick-action:hover {
    background: var(--bg-hover);
    color: var(--color-primary);
}

.pos-quick-action svg {
    width: 20px;
    height: 20px;
}

/* ============================================
   Favorites Section
============================================ */
.pos-favorites {
    margin-bottom: var(--spacing-md);
}

.pos-favorites__title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

.pos-favorites__title svg {
    width: 16px;
    height: 16px;
    color: var(--color-warning);
}

.pos-favorites__grid {
    display: flex;
    gap: var(--spacing-sm);
    overflow-x: auto;
    padding-bottom: var(--spacing-xs);
}

.pos-favorite-item {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    min-width: 80px;
}

.pos-favorite-item:hover {
    border-color: var(--color-primary);
    background: var(--bg-hover);
}

.pos-favorite-item__name {
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--text-primary);
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 70px;
}

.pos-favorite-item__price {
    font-size: var(--font-size-xs);
    color: var(--color-primary);
    font-weight: 600;
}

/* Sale Notes Indicator */
.pos-cart__notes-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.pos-cart__notes-indicator svg {
    width: 16px;
    height: 16px;
    color: var(--color-info);
}