:root {
  --primary: #E52E2E;
  --primary-hover: #D32F2F;
  --primary-dark: #B71C1C;
  --accent: #FF9800;
  --success: #2E7D32;
  --success-hover: #1B5E20;
  --warning: #F57C00;
  --danger: #D32F2F;
  --info: #0288D1;
  
  /* Dark Mode Default */
  --bg-main: #121217;
  --bg-surface: #1C1C24;
  --bg-card: #242430;
  --bg-card-hover: #2E2E3D;
  --bg-topbar: #16161E;
  --border-color: #353545;
  --text-primary: #F3F4F6;
  --text-secondary: #9CA3AF;
  --text-muted: #6B7280;
  --cart-bg: #181820;
  --cart-item-bg: #22222D;
  --numpad-bg: #22222D;
  --numpad-btn-bg: #2C2C3A;
  --numpad-btn-hover: #38384A;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

[data-theme="light"] {
  --bg-main: #F1F5F9;
  --bg-surface: #FFFFFF;
  --bg-card: #F8FAFC;
  --bg-card-hover: #EDF2F7;
  --bg-topbar: #FFFFFF;
  --border-color: #CBD5E1;
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #64748B;
  --cart-bg: #FFFFFF;
  --cart-item-bg: #F8FAFC;
  --numpad-bg: #F8FAFC;
  --numpad-btn-bg: #FFFFFF;
  --numpad-btn-hover: #E2E8F0;
  --shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

/* Surface, Cards & Backgrounds */
.bg-surface, .card {
  background-color: var(--bg-surface) !important;
  color: var(--text-primary) !important;
  border: 1px solid var(--border-color) !important;
}

.bg-card {
  background-color: var(--bg-card) !important;
  color: var(--text-primary) !important;
}

.card-header {
  background-color: var(--bg-topbar) !important;
  color: var(--text-primary) !important;
  border-bottom: 1px solid var(--border-color) !important;
}

.card-footer {
  background-color: var(--bg-topbar) !important;
  color: var(--text-primary) !important;
  border-top: 1px solid var(--border-color) !important;
}

/* Forms & Inputs */
.form-control, .form-select {
  background-color: var(--bg-card) !important;
  color: var(--text-primary) !important;
  border: 1px solid var(--border-color) !important;
  border-radius: 8px;
}

.form-control:focus, .form-select:focus {
  border-color: var(--primary) !important;
  box-shadow: 0 0 0 3px rgba(229, 46, 46, 0.2) !important;
  background-color: var(--bg-card) !important;
  color: var(--text-primary) !important;
}

.form-control::placeholder {
  color: var(--text-muted) !important;
  opacity: 0.8;
}

.form-label {
  color: var(--text-secondary) !important;
  font-weight: 600;
}

.form-check-input {
  background-color: var(--bg-card);
  border-color: var(--border-color);
  cursor: pointer;
}

.form-check-input:checked {
  background-color: var(--primary);
  border-color: var(--primary);
}

.form-check-label {
  color: var(--text-primary) !important;
  cursor: pointer;
}

/* Theme-Adaptive Tables */
.table {
  color: var(--text-primary) !important;
  border-color: var(--border-color) !important;
  background-color: transparent !important;
}

.table > :not(caption) > * > * {
  background-color: transparent !important;
  color: var(--text-primary) !important;
  border-bottom: 1px solid var(--border-color) !important;
}

.table thead th {
  background-color: var(--bg-topbar) !important;
  color: var(--text-primary) !important;
  font-weight: 700;
  border-bottom: 2px solid var(--border-color) !important;
  padding: 12px 16px;
}

.table tbody tr:hover td {
  background-color: var(--bg-card-hover) !important;
}

.table td {
  padding: 12px 16px;
  vertical-align: middle;
}

/* Headings & Texts */
.page-title {
  color: var(--text-primary) !important;
  font-weight: 800;
}

.page-subtitle {
  color: var(--text-secondary) !important;
}

.text-theme-primary {
  color: var(--text-primary) !important;
}

.text-theme-secondary {
  color: var(--text-secondary) !important;
}

.text-theme-muted {
  color: var(--text-muted) !important;
}

/* Nav Pills / Tabs */
.nav-pills .nav-link {
  color: var(--text-secondary);
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  transition: all 0.2s;
}

.nav-pills .nav-link:hover {
  color: var(--text-primary);
  background-color: var(--bg-card-hover);
}

.nav-pills .nav-link.active {
  background-color: var(--primary) !important;
  color: #FFFFFF !important;
  border-color: var(--primary-dark) !important;
}

/* Modals */
.modal-content {
  background-color: var(--bg-surface) !important;
  color: var(--text-primary) !important;
  border: 1px solid var(--border-color) !important;
  box-shadow: var(--shadow);
  border-radius: 12px;
}

.modal-header {
  background-color: var(--bg-topbar) !important;
  border-bottom: 1px solid var(--border-color) !important;
  color: var(--text-primary) !important;
}

.modal-footer {
  background-color: var(--bg-topbar) !important;
  border-top: 1px solid var(--border-color) !important;
}

[data-theme="light"] .btn-close-white {
  filter: invert(1) grayscale(100%) brightness(20%) !important;
}

/* Option Box & Card Containers */
.custom-option-box {
  background-color: var(--bg-card) !important;
  border: 1px solid var(--border-color) !important;
  border-radius: 10px;
  padding: 12px 16px;
  color: var(--text-primary) !important;
}

.list-group-item-theme {
  background-color: var(--bg-card) !important;
  border: 1px solid var(--border-color) !important;
  color: var(--text-primary) !important;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
  -webkit-user-drag: none;
}

body {
  font-family: 'Segoe UI', Tahoma, Arial, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-primary);
  overflow: hidden;
  height: 100vh;
  width: 100vw;
  display: flex;
  flex-direction: column;
}

/* TOP DESKTOP BAR */
.pos-topbar {
  height: 60px;
  background-color: var(--bg-topbar);
  border-bottom: 2px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 15px;
  z-index: 1000;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  height: 42px;
  width: auto;
}

.pos-nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.pos-nav-btn {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid transparent;
  padding: 8px 14px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
}

.pos-nav-btn:hover, .pos-nav-btn.active {
  background: var(--bg-card);
  color: var(--text-primary);
  border-color: var(--border-color);
}

.pos-nav-btn.pos-active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary-dark);
}

.topbar-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.digital-clock {
  font-size: 15px;
  font-weight: 700;
  color: var(--accent);
  background: var(--bg-card);
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  letter-spacing: 1px;
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-card);
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  font-size: 13px;
  font-weight: 600;
}

.btn-icon {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  width: 38px;
  height: 38px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 16px;
  transition: all 0.2s;
}

.btn-icon:hover {
  background: var(--bg-card-hover);
  border-color: var(--primary);
}

/* MAIN LAYOUT WRAPPER */
.pos-workspace {
  flex: 1;
  display: flex;
  height: calc(100vh - 60px);
  overflow: hidden;
}

.pos-workspace > .container,
.pos-workspace > .container-fluid {
  flex: 1 1 auto;
  width: 100%;
  max-width: 100%;
  height: 100%;
  overflow-y: auto;
  padding: 1.5rem;
}

/* CART PANEL (LEFT IN LTR, RIGHT IN RTL) */
.pos-cart-panel {
  width: 380px;
  background-color: var(--cart-bg);
  border-inline-end: 2px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.cart-header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.order-type-switch {
  display: flex;
  background: var(--bg-main);
  border-radius: 8px;
  padding: 3px;
  gap: 3px;
}

.order-type-btn {
  padding: 6px 12px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: 6px;
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
}

.order-type-btn.active {
  background: var(--primary);
  color: #fff;
}

.cart-items-container {
  flex: 1;
  overflow-y: auto;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.cart-item {
  background: var(--cart-item-bg);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: all 0.15s;
}

.cart-item:hover, .cart-item.selected {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.cart-item-main {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cart-item-title {
  font-weight: 700;
  font-size: 15px;
  color: var(--text-primary);
}

.cart-item-price {
  font-weight: 800;
  font-size: 16px;
  color: var(--primary);
}

.cart-item-sub {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cart-item-unit {
  font-size: 12px;
  color: var(--text-muted);
}

.qty-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-qty {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-primary);
  font-weight: 800;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.btn-qty:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.qty-value {
  font-weight: 800;
  font-size: 16px;
  min-width: 24px;
  text-align: center;
}

.cart-item-note-badge {
  font-size: 12px;
  color: var(--accent);
  background: rgba(255, 152, 0, 0.12);
  padding: 3px 8px;
  border-radius: 6px;
  display: inline-block;
  margin-top: 4px;
  cursor: pointer;
}

/* CART SUMMARY & ACTIONS */
.cart-summary {
  padding: 12px 16px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  color: var(--text-secondary);
}

.summary-total {
  font-size: 22px;
  font-weight: 900;
  color: var(--text-primary);
  margin-top: 4px;
  padding-top: 6px;
  border-top: 1px dashed var(--border-color);
}

.cart-actions {
  padding: 12px 16px;
  display: flex;
  gap: 10px;
  background: var(--bg-surface);
}

.btn-pay {
  flex: 2;
  height: 60px;
  background: var(--success);
  color: #fff;
  border: none;
  border-radius: 12px;
  font-size: 20px;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(46, 125, 50, 0.4);
  transition: all 0.2s;
}

.btn-pay:hover {
  background: var(--success-hover);
  transform: translateY(-2px);
}

.btn-clear-cart {
  flex: 1;
  height: 60px;
  background: var(--danger);
  color: #fff;
  border: none;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
}

/* PRODUCTS PANEL (CENTER/RIGHT) */
.pos-products-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  background: var(--bg-main);
}

/* CATEGORY TABS BAR (TOUCH-FRIENDLY WRAPPING) */
.categories-bar {
  padding: 10px 15px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  max-height: 150px;
  overflow-y: auto;
}

.category-chip {
  padding: 10px 18px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-primary);
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.2s;
  white-space: nowrap;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

.category-chip:hover {
  background: var(--bg-card-hover);
  border-color: var(--primary);
}

.category-chip.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary-dark);
  box-shadow: 0 4px 12px rgba(229, 46, 46, 0.35);
}

/* SEARCH & FILTER BAR */
.pos-search-bar {
  padding: 10px 15px;
  display: flex;
  gap: 12px;
  align-items: center;
}

.search-input-wrapper {
  flex: 1;
  position: relative;
}

.search-input {
  width: 100%;
  height: 48px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 0 45px 0 16px;
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 600;
}

.search-input:focus {
  border-color: var(--primary);
  outline: none;
}

/* PRODUCT GRID */
.products-grid-container {
  flex: 1;
  overflow-y: auto;
  padding: 15px;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 140px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all 0.15s ease-in-out;
}

.product-card:hover {
  transform: translateY(-3px);
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.product-card:active {
  transform: scale(0.97);
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--primary);
}

.product-title-ar {
  font-weight: 800;
  font-size: 16px;
  line-height: 1.3;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.product-title-en {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 600;
}

.product-footer {
  margin-top: 10px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.product-price {
  font-size: 18px;
  font-weight: 900;
  color: var(--primary);
}

.product-station-badge {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--bg-main);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

/* TOUCH MODALS & NUMPAD */
.modal-backdrop-custom {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content-custom {
  background: var(--bg-surface);
  border: 2px solid var(--border-color);
  border-radius: 20px;
  width: 90%;
  max-width: 580px;
  box-shadow: var(--shadow);
  overflow: hidden;
  animation: modalPop 0.2s ease-out;
}

@keyframes modalPop {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}

.modal-header-custom {
  padding: 16px 20px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-body-custom {
  padding: 20px;
}

.numpad-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.btn-numpad {
  height: 65px;
  background: var(--numpad-btn-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  font-size: 24px;
  font-weight: 800;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.1s;
}

.btn-numpad:hover {
  background: var(--numpad-btn-hover);
  border-color: var(--primary);
}

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

.quick-cash-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 12px;
}

.btn-quick-cash {
  height: 48px;
  background: var(--bg-card);
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 10px;
  font-weight: 800;
  font-size: 15px;
  cursor: pointer;
}

.btn-quick-cash:hover {
  background: var(--accent);
  color: #000;
}

/* =========================================================
   PRINT-READY STYLES (A4 & Thermal Report Formatting)
   ========================================================= */
@media print {
  /* 1. Hide unwanted UI elements */
  .pos-topbar,
  header.pos-topbar,
  .no-print,
  .no-print *,
  .btn,
  .btn-group,
  form,
  .modal,
  .modal-backdrop,
  .modal-backdrop-custom,
  #topbarShiftStatus,
  .topbar-controls,
  .digital-clock,
  .user-badge,
  .categories-bar,
  .pos-search-bar,
  .pos-cart-panel,
  nav,
  footer {
    display: none !important;
  }

  /* 2. Reset Layout for Clean Document Flow */
  html, body {
    background: #ffffff !important;
    color: #000000 !important;
    height: auto !important;
    min-height: auto !important;
    overflow: visible !important;
    font-size: 10.5pt !important;
    margin: 0 !important;
    padding: 0 !important;
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
  }

  .pos-workspace,
  .container-fluid {
    height: auto !important;
    overflow: visible !important;
    padding: 0 !important;
    margin: 0 !important;
  }

  /* 3. Cards & Boxes in Print */
  .card, .bg-surface, .custom-option-box {
    background: #ffffff !important;
    color: #000000 !important;
    border: 1px solid #bbb !important;
    box-shadow: none !important;
    page-break-inside: avoid;
    margin-bottom: 12px !important;
  }

  .page-title {
    color: #000000 !important;
  }

  .badge {
    border: 1px solid #444 !important;
    color: #000 !important;
    background: #f8f9fa !important;
  }

  /* 4. Tables in Print */
  .table {
    width: 100% !important;
    border-collapse: collapse !important;
    color: #000000 !important;
    margin-bottom: 12px !important;
  }

  .table-dark, thead.table-dark, thead {
    background-color: #ececec !important;
    color: #000000 !important;
    display: table-header-group !important;
  }

  .table-dark th, thead th {
    background-color: #ececec !important;
    color: #000000 !important;
    border: 1px solid #999 !important;
    font-weight: 800 !important;
  }

  .table td {
    border: 1px solid #ccc !important;
    padding: 5px 8px !important;
    color: #000000 !important;
  }

  tr {
    page-break-inside: avoid !important;
  }

  /* 5. Typography */
  .text-success, .text-danger, .text-warning, .text-info, .text-primary, .text-muted {
    color: #000000 !important;
  }

  .fw-bold {
    font-weight: 700 !important;
  }

  @page {
    size: A4 portrait;
    margin: 10mm 10mm 12mm 10mm;
  }
}