/* CSS Variables for Clean, White, Modern Light Theme */
:root {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-card: #ffffff;
  
  --text-main: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-light: #e0e7ff;
  
  --success: #10b981;
  --success-light: #d1fae5;
  --success-hover: #059669;
  
  --warning: #f59e0b;
  --warning-light: #fef3c7;
  
  --danger: #ef4444;
  --danger-light: #fee2e2;
  --danger-hover: #dc2626;
  
  --border-color: #e2e8f0;
  --border-focus: #cbd5e1;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.04), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.5;
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

/* System Header styles */
.system-header {
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  z-index: 100;
  height: 70px;
  flex-shrink: 0;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  background: var(--primary);
  color: #ffffff;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.logo-text h1 {
  font-size: 1.125rem;
  font-weight: 700;
}

.logo-text span {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.db-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 500;
  background-color: var(--bg-secondary);
  padding: 6px 12px;
  border-radius: 20px;
}

.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

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

/* System Container content */
.system-content {
  flex-grow: 1;
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
}

.tab-view {
  width: 100%;
  height: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* Admin Layout style */
.admin-layout {
  display: flex;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.admin-sidebar {
  width: 240px;
  background-color: var(--bg-card);
  border-right: 1px solid var(--border-color);
  padding: 16px 8px;
  flex-shrink: 0;
  overflow-y: auto;
}

.sidebar-menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.menu-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
}

.menu-item:hover {
  background-color: var(--bg-secondary);
  color: var(--text-main);
}

.menu-item.active {
  background-color: var(--bg-secondary);
  color: var(--primary);
  font-weight: 600;
}

.admin-canvas {
  flex-grow: 1;
  padding: 24px;
  overflow-y: auto;
  background-color: var(--bg-primary);
}

.subtab-view {
  display: none;
  animation: fadeIn 0.15s ease-out;
}

.subtab-view.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-main);
}

.view-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

/* Card components */
.content-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: auto;
  padding: 20px;
}

.content-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-main);
}

.card-header {
  border-bottom: 1px solid var(--border-color);
  padding: 12px 20px;
  background-color: var(--bg-card);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-header h3 {
  margin-bottom: 0;
}

.card-body {
  padding: 20px;
}

/* Dashboard metrics */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.metric-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow-sm);
}

.metric-card.small {
  padding: 12px 16px;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
}

.metric-card.small h3 {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.metric-card.small p {
  font-size: 1.25rem;
  font-weight: 700;
}

.metric-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.metric-icon.blue { background-color: var(--primary-light); color: var(--primary); }
.metric-icon.green { background-color: var(--success-light); color: var(--success); }
.metric-icon.purple { background-color: #f3e8ff; color: #a855f7; }
.metric-icon.orange { background-color: #ffedd5; color: #ea580c; }
.metric-icon.red { background-color: var(--danger-light); color: var(--danger); }
.metric-icon.grey { background-color: var(--bg-secondary); color: var(--text-secondary); }

.metric-info h3 {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.metric-info p {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
}

.dashboard-details {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 20px;
}

.details-left, .details-right {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Tables style */
.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.875rem;
  min-width: 750px;
}

.data-table th {
  padding: 12px 16px;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
}

.data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-main);
  vertical-align: middle;
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

.data-table tbody tr:hover td {
  background-color: var(--bg-primary);
}

.table-thumbnail {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.875rem;
  overflow: hidden;
}

.table-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Forms style */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.form-grid-three {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.form-span-2 {
  grid-column: span 2;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-input {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 0.875rem;
  font-family: inherit;
  color: var(--text-main);
  outline: none;
  transition: var(--transition);
}

.form-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.inline-form {
  display: flex;
  gap: 8px;
}

.input-action-group {
  display: flex;
}

.input-action-group .form-input {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
  flex-grow: 1;
}

.input-action-group .btn {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

.help-text {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* Buttons style */
.btn {
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: var(--transition);
}

.btn-primary { background-color: var(--primary); color: #ffffff; }
.btn-primary:hover { background-color: var(--primary-hover); }

.btn-success { background-color: var(--success); color: #ffffff; }
.btn-success:hover { background-color: var(--success-hover); }

.btn-danger { background-color: var(--danger); color: #ffffff; }
.btn-danger:hover { background-color: var(--danger-hover); }

.btn-outline { background-color: transparent; border-color: var(--border-color); color: var(--text-secondary); }
.btn-outline:hover { background-color: var(--bg-secondary); color: var(--text-main); }

.btn-text { background: transparent; border: none; font-size: 0.875rem; color: var(--primary); cursor: pointer; font-weight: 500; }
.btn-text:hover { text-decoration: underline; }

.btn-block { width: 100%; display: flex; }
.btn-lg { padding: 12px 24px; font-size: 1rem; border-radius: var(--radius-md); }

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

/* Badge styles */
.badge {
  display: inline-block;
  padding: 2px 8px;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 12px;
}

.badge-success { background-color: var(--success-light); color: var(--success); }
.badge-danger { background-color: var(--danger-light); color: var(--danger); }
.badge-warning { background-color: var(--warning-light); color: var(--warning); }
.badge-neutral { background-color: var(--bg-secondary); color: var(--text-secondary); }

/* Timeline list */
.transaction-timeline {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 300px;
  overflow-y: auto;
}

.timeline-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background-color: var(--bg-primary);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--primary);
  font-size: 0.8125rem;
}

.timeline-info h4 {
  font-weight: 600;
}

.timeline-info span {
  color: var(--text-secondary);
  font-size: 0.75rem;
}

.timeline-amount {
  font-weight: 700;
  color: var(--text-main);
}

/* Helper margin utility */
.margin-top { margin-top: 20px; }
.margin-bottom { margin-bottom: 20px; }
.padding-top { padding-top: 16px; }
.border-top { border-top: 1px solid var(--border-color); }
.text-right { text-align: right; }
.center-text { text-align: center; }
.hidden { display: none !important; }
.flex-wrap-container { display: flex; flex-wrap: wrap; gap: 8px; }
.gap-medium { gap: 16px; }
.flex-row { display: flex; align-items: center; }

/* iPad POS Layout style */
.pos-layout {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.pos-header {
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.pos-member-tag {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--primary);
  background-color: var(--primary-light);
  padding: 6px 16px;
  border-radius: 20px;
}

.pos-main {
  display: grid;
  grid-template-columns: 7fr 5fr;
  flex-grow: 1;
  overflow: hidden;
  background-color: var(--bg-primary);
}

.pos-left-panel {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow-y: auto;
}

.pos-right-panel {
  border-left: 1px solid var(--border-color);
  background-color: var(--bg-card);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Scanning simulator style */
.pos-scan-simulator {
  padding: 16px;
}

.scan-methods {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.scan-method-btn {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  flex-grow: 1;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.scan-method-btn.active {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.scan-input-area {
  animation: fadeIn 0.15s ease-out;
}

/* Mock Camera Lens */
.camera-lens-mock {
  position: relative;
  height: 120px;
  border-radius: var(--radius-md);
  border: 2px dashed var(--border-color);
  background-color: var(--bg-secondary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.scan-laser-line {
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--danger);
  box-shadow: 0 0 8px var(--danger);
  animation: laserScan 2s infinite ease-in-out;
}

@keyframes laserScan {
  0% { top: 10%; }
  50% { top: 90%; }
  100% { top: 10%; }
}

.camera-qr-icon {
  font-size: 2rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.camera-status {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* Last scanned display styles */
.last-scanned-card {
  padding: 16px;
}

.scan-display-grid {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 16px;
  align-items: center;
}

.scan-display-img-placeholder {
  width: 100px;
  height: 100px;
  border-radius: var(--radius-md);
  background-color: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--text-muted);
  overflow: hidden;
}

.scan-display-img-placeholder img {
  width: 100px;
  height: 100px;
  object-fit: cover;
}

.scan-display-details h4 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.scan-display-price {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}

.scan-display-stock {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

/* Quick item select button grid */
.quick-prod-btn {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}

.quick-prod-btn:hover {
  background-color: var(--bg-secondary);
  border-color: var(--border-focus);
}

/* Shopping Cart styles */
.pos-cart-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

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

.cart-header h2 {
  font-size: 1.25rem;
  font-weight: 700;
}

.cart-items {
  flex-grow: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.cart-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-muted);
  gap: 12px;
}

.cart-empty-state i {
  font-size: 3rem;
}

.cart-empty-state p {
  font-size: 0.875rem;
}

.cart-item {
  display: flex;
  align-items: center;
  background-color: var(--bg-secondary);
  padding: 10px;
  border-radius: var(--radius-md);
  gap: 12px;
  animation: fadeIn 0.15s ease-out;
}

.cart-item-img {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-sm);
  background-color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--text-muted);
  overflow: hidden;
  flex-shrink: 0;
}

.cart-item-img img {
  width: 50px;
  height: 50px;
  object-fit: cover;
}

.cart-item-details {
  flex-grow: 1;
}

.cart-item-details h4 {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.cart-item-price-calc {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

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

.cart-qty-btn {
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.75rem;
  transition: var(--transition);
}

.cart-qty-btn:hover {
  background-color: var(--bg-primary);
}

.cart-item-qty {
  font-weight: 600;
  font-size: 0.875rem;
  min-width: 16px;
  text-align: center;
}

.cart-item-remove {
  background: transparent;
  border: none;
  color: var(--danger);
  cursor: pointer;
  font-size: 1rem;
  padding: 4px;
  transition: var(--transition);
}

.cart-item-remove:hover {
  opacity: 0.8;
}

.cart-summary {
  border-top: 1px solid var(--border-color);
  padding: 20px;
  background-color: var(--bg-card);
}

.summary-line {
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.summary-line.total {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
  margin-top: 8px;
  margin-bottom: 0;
}

/* Smart Exit Gate Simulator View */
.gate-layout {
  padding: 24px;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-color: var(--bg-secondary);
}

.gate-simulator-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 30px;
  width: 100%;
  max-width: 800px;
}

.gate-simulation-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin-top: 20px;
}

.gate-physical-simulation {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--bg-primary);
  height: 280px;
  display: flex;
  position: relative;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.gate-light-pole {
  position: absolute;
  left: 20px;
  top: 20px;
  background-color: #334155;
  width: 24px;
  padding: 4px;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.gate-light {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background-color: #1e293b;
  transition: var(--transition);
}

.gate-light.red.active {
  background-color: var(--danger);
  box-shadow: 0 0 12px var(--danger);
}

.gate-light.green.active {
  background-color: var(--success);
  box-shadow: 0 0 12px var(--success);
}

.gate-barrier-container {
  width: 20px;
  height: 160px;
  background-color: #475569;
  position: relative;
  border-radius: 4px;
}

.gate-barrier-bar {
  position: absolute;
  bottom: 20px;
  left: 10px;
  height: 12px;
  width: 180px;
  background: repeating-linear-gradient(
    45deg,
    #f59e0b,
    #f59e0b 10px,
    #0f172a 10px,
    #0f172a 20px
  );
  transform-origin: left center;
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 12px;
}

.gate-barrier-bar.closed {
  transform: rotate(0deg);
}

.gate-barrier-bar.open {
  transform: rotate(-90deg);
}

.gate-text {
  font-size: 8px;
  font-weight: 800;
  color: #ffffff;
  background-color: rgba(0, 0, 0, 0.7);
  padding: 1px 4px;
  border-radius: 2px;
}

.gate-alarm-siren {
  position: absolute;
  top: 20px;
  right: 20px;
  background-color: #334155;
  color: #ffffff;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.gate-alarm-siren.active {
  background-color: var(--danger);
  animation: sirenFlash 0.5s infinite alternate;
}

@keyframes sirenFlash {
  from { box-shadow: 0 0 4px var(--danger); }
  to { box-shadow: 0 0 16px var(--danger); }
}

.gate-controls-panel {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.status-panel-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 16px;
  border-radius: var(--radius-md);
}

.status-panel-card h3 {
  font-size: 0.875rem;
  margin-bottom: 12px;
}

.status-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  margin-bottom: 8px;
}

.status-row:last-child {
  margin-bottom: 0;
}

.status-locked { color: var(--danger); }
.status-unlocked { color: var(--success); }
.status-ok { color: var(--success); }
.status-alarm { color: var(--danger); animation: pulseText 1s infinite alternate; }

@keyframes pulseText {
  from { opacity: 0.6; }
  to { opacity: 1; }
}

.btn-group-vertical {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.btn-group {
  display: flex;
  gap: 8px;
}

.btn-group .btn {
  flex-grow: 1;
}

/* Modals Overlay style */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease-out;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 90%;
  max-width: 650px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(16px);
  transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-overlay.active .modal-card {
  transform: translateY(0);
}

.modal-card.max-width-md { max-width: 500px; }
.modal-card.max-width-sm { max-width: 400px; }

.modal-header {
  border-bottom: 1px solid var(--border-color);
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  font-size: 1.125rem;
  font-weight: 700;
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 1.25rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.modal-close:hover {
  color: var(--text-main);
}

.modal-body {
  padding: 24px;
}

/* Payment Gateway styling */
.payment-amount-prompt {
  font-size: 1.125rem;
  margin-bottom: 20px;
}

.payment-methods-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.pay-method-btn {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px 12px;
  font-family: inherit;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.pay-method-btn:hover {
  background-color: var(--bg-primary);
  border-color: var(--border-focus);
  transform: translateY(-2px);
}

.pay-method-btn i {
  font-size: 1.5rem;
  color: var(--primary);
}

.pay-method-btn[data-pay="KHQR"] i { color: #d97706; }
.pay-method-btn[data-pay="Apple Pay"] i { color: #000000; }
.pay-method-btn[data-pay="Google Pay"] i { color: #4285f4; }

.inline-select {
  display: inline-block;
  width: auto;
  margin-left: 8px;
}

/* Loading animations */
.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid var(--bg-secondary);
  border-top: 4px solid var(--primary);
  border-radius: 50%;
  margin: 20px auto;
  animation: spin 1s infinite linear;
}

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

.success-icon-animation {
  font-size: 4rem;
  color: var(--success);
  animation: popScale 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.failed-icon-animation {
  font-size: 4rem;
  color: var(--danger);
  animation: popScale 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes popScale {
  0% { transform: scale(0.5); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

.receipt-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-top: 12px;
}

.center-align {
  justify-content: center;
}

/* Receipts Styling */
.paper-receipt {
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  padding: 24px;
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.8125rem;
  line-height: 1.4;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.03);
  color: #000000;
}

.paper-receipt hr {
  border: none;
  border-top: 1px dashed #000000;
  margin: 12px 0;
}

.receipt-item-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 4px;
}

.receipt-item-details {
  display: flex;
  justify-content: space-between;
  width: 100%;
}

.customer-selection-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.customer-select-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
}

.customer-select-item:hover {
  border-color: var(--primary);
  background-color: var(--primary-light);
}

/* Live Database Logs panel */
.system-logs-panel {
  background-color: #0f172a;
  color: #38bdf8;
  height: 160px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  font-family: monospace;
  font-size: 0.75rem;
  border-top: 2px solid #1e293b;
}

.logs-header {
  background-color: #1e293b;
  padding: 6px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logs-header h3 {
  font-size: 0.75rem;
  color: #f8fafc;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logs-console {
  padding: 12px;
  overflow-y: auto;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.log-line {
  line-height: 1.4;
  word-break: break-all;
}

.log-line.system { color: #f8fafc; }
.log-line.success { color: #4ade80; }
.log-line.error { color: #f87171; }
.log-line.info { color: #38bdf8; }
.log-line.warning { color: #fbbf24; }

/* Cashier vs Self Mode UI Differentiations */
.pos-layout.self-mode .pos-quick-select {
  display: none !important; /* Self-checkout kiosk doesn't have cashier quick-keys */
}

.pos-layout.self-mode #btn-change-customer {
  background-color: var(--warning-light);
  color: var(--warning);
  border-color: rgba(245, 158, 11, 0.2);
}

.pos-layout.self-mode .pos-scan-simulator::before {
  content: 'WELCOME TO SELF-CHECKOUT';
  display: block;
  font-size: 1rem;
  font-weight: 800;
  color: var(--primary);
  text-align: center;
  margin-bottom: 12px;
  letter-spacing: 1px;
  padding: 8px;
  background-color: var(--primary-light);
  border-radius: var(--radius-sm);
}

.pos-layout.cashier-mode .pos-scan-simulator::before {
  content: 'CASHIER TERMINAL WORKSPACE';
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 8px;
}

/* Admin Login Screen CSS */
.admin-login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100%;
  background-color: var(--bg-secondary);
  padding: 20px;
}

.login-card {
  width: 100%;
  max-width: 400px;
  padding: 32px;
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
}

/* MOBILE RESPONSIVE MEDIA QUERIES (NO-ZOOM DESIGN) */
@media (max-width: 768px) {
  body {
    height: auto;
    overflow-y: auto;
  }
  
  .system-header {
    height: auto;
    flex-direction: column;
    gap: 12px;
    padding: 12px 16px;
    align-items: flex-start;
  }
  
  .system-nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
    white-space: nowrap;
  }

  /* Admin Layout Mobile Modifications */
  .admin-layout {
    flex-direction: column;
    height: auto;
    overflow: visible;
  }
  
  .admin-sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    padding: 8px 12px;
    overflow-x: auto;
    position: sticky;
    top: 0;
    z-index: 10;
  }
  
  .sidebar-menu {
    flex-direction: row;
    gap: 8px;
  }
  
  .menu-item {
    white-space: nowrap;
    padding: 8px 14px;
    font-size: 0.8125rem;
  }
  
  .admin-canvas {
    padding: 16px;
    height: auto;
    overflow: visible;
  }
  
  /* POS Mobile Layout Modifications */
  .pos-main {
    grid-template-columns: 1fr;
    height: auto;
    overflow: visible;
  }
  
  .pos-right-panel {
    border-left: none;
    border-top: 1px solid var(--border-color);
    height: auto;
    overflow: visible;
  }
  
  .pos-left-panel {
    overflow: visible;
    padding: 16px;
  }
  
  /* Grids & Cards Modifiers */
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }
  
  .dashboard-details {
    grid-template-columns: 1fr;
  }
  
  .cards-grid {
    grid-template-columns: 1fr !important;
    gap: 16px;
  }
  
  .gate-simulation-grid {
    grid-template-columns: 1fr;
  }
  
  .form-grid, .form-grid-three {
    grid-template-columns: 1fr;
  }
  
  .form-span-2 {
    grid-column: span 1;
  }
  
  /* Prevent iOS Input Auto-Zoom (Requires minimum 16px font-size) */
  .form-input, select, textarea {
    font-size: 16px !important;
  }
  
  .btn-lg {
    padding: 14px 20px;
    font-size: 1rem;
  }
  
  .system-logs-panel {
    position: static;
    height: 200px;
  }
}

@media (max-width: 480px) {
  .metrics-grid {
    grid-template-columns: 1fr !important;
  }
  
  .payment-methods-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .receipt-btns {
    flex-direction: column;
    width: 100%;
  }
  
  .receipt-btns .btn {
    width: 100%;
  }
}