:root {
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-light: #eef2ff;
  --primary-border: #c7d2fe;
  
  --secondary: #0ea5e9;
  --success: #10b981;
  --success-light: #ecfdf5;
  --success-border: #a7f3d0;
  
  --warning: #f59e0b;
  --warning-light: #fffbeb;
  --warning-border: #fde68a;
  
  --danger: #ef4444;
  --danger-light: #fef2f2;
  --danger-border: #fecaca;
  
  --bg-app: #f8fafc;
  --bg-surface: #ffffff;
  --bg-sidebar: #0f172a;
  --sidebar-text: #94a3b8;
  --sidebar-hover: #1e293b;
  
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  
  --border-color: #e2e8f0;
  --border-focus: #6366f1;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

body {
  background-color: var(--bg-app);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* App Layout */
.app-container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background-color: var(--bg-sidebar);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar-brand {
  padding: 24px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.brand-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #6366f1, #3b82f6);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-weight: 700;
  font-size: 18px;
}

.brand-title {
  color: #ffffff;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-subtitle {
  font-size: 10px;
  line-height: 1.3;
  color: var(--sidebar-text);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.sidebar-nav {
  padding: 20px 12px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  color: var(--sidebar-text);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
  cursor: pointer;
}

.nav-link:hover {
  background-color: var(--sidebar-hover);
  color: #ffffff;
}

.nav-link.active {
  background-color: var(--primary);
  color: #ffffff;
  font-weight: 600;
}

.nav-icon {
  font-size: 16px;
  width: 20px;
  text-align: center;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.user-profile {
  display: flex;
  align-items: center;
  gap: 10px;
  overflow: hidden;
}

.user-avatar {
  width: 34px;
  height: 34px;
  background-color: #334155;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #e2e8f0;
  font-weight: 600;
  font-size: 13px;
  flex-shrink: 0;
}

.user-meta {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.user-name {
  color: #ffffff;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-role {
  font-size: 11px;
  color: #94a3b8;
}

.btn-logout {
  background: none;
  border: none;
  color: #94a3b8;
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  font-size: 14px;
}
.btn-logout:hover {
  color: #ef4444;
  background-color: rgba(239, 68, 68, 0.1);
}

/* Main Content Area */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  max-height: 100vh;
}

.top-header {
  height: 64px;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-title-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.content-body {
  padding: 32px;
  flex: 1;
}

/* Tab Views */
.tab-pane {
  display: none;
}
.tab-pane.active {
  display: block;
}

/* Stat Cards Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.stat-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background-color: var(--primary);
}

.stat-card.success::before { background-color: var(--success); }
.stat-card.warning::before { background-color: var(--warning); }
.stat-card.info::before { background-color: var(--secondary); }

.stat-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.stat-value {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.stat-subtext {
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Dashboard Analytics Grid */
.charts-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
  margin-bottom: 28px;
}

@media (max-width: 1024px) {
  .charts-grid {
    grid-template-columns: 1fr;
  }
}

.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

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

.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
}

.card-body {
  padding: 20px;
}

/* Tables */
.table-container {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 13px;
}

th {
  background-color: #f8fafc;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
}

td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

tr:hover td {
  background-color: #fbfcfe;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 9999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge-active { background-color: var(--success-light); color: #047857; border: 1px solid var(--success-border); }
.badge-paused { background-color: var(--warning-light); color: #b45309; border: 1px solid var(--warning-border); }
.badge-expired { background-color: var(--danger-light); color: #b91c1c; border: 1px solid var(--danger-border); }
.badge-type { background-color: var(--primary-light); color: var(--primary); border: 1px solid var(--primary-border); }
.badge-kiosk { background-color: #f1f5f9; color: #334155; border: 1px solid #cbd5e1; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  border: 1px solid transparent;
}

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

.btn-secondary {
  background-color: #ffffff;
  color: var(--text-main);
  border-color: var(--border-color);
}
.btn-secondary:hover {
  background-color: #f8fafc;
}

.btn-danger {
  background-color: var(--danger);
  color: #ffffff;
}
.btn-danger:hover {
  background-color: #dc2626;
}

.btn-sm {
  padding: 6px 10px;
  font-size: 12px;
}

.btn-icon {
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Filter & Search Toolbar */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.search-input-wrapper {
  position: relative;
  min-width: 280px;
}

.search-input {
  width: 100%;
  padding: 8px 12px 8px 36px;
  font-size: 13px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: #ffffff;
  color: var(--text-main);
  outline: none;
}
.search-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 14px;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.filter-select {
  padding: 8px 12px;
  font-size: 13px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: #ffffff;
  color: var(--text-main);
  outline: none;
}

/* Toggle Switch */
.switch {
  position: relative;
  display: inline-block;
  width: 38px;
  height: 20px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: #cbd5e1;
  transition: .2s;
  border-radius: 20px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 14px;
  width: 14px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .2s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--success);
}

input:checked + .slider:before {
  transform: translateX(18px);
}

/* Code Copy Pill */
.code-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-weight: 700;
  background-color: #f1f5f9;
  border: 1px dashed #cbd5e1;
  padding: 3px 8px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
  color: #1e293b;
}
.code-pill:hover {
  background-color: #e2e8f0;
  border-color: #94a3b8;
}

/* Modal Dialog */
dialog {
  margin: auto;
  border: none;
  border-radius: var(--radius-lg);
  padding: 0;
  box-shadow: var(--shadow-xl);
  max-width: 680px;
  width: 90%;
  background: #ffffff;
  overflow: hidden;
}

dialog::backdrop {
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
}

.dialog-header {
  padding: 20px 24px;
  background-color: #f8fafc;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.dialog-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
}

.dialog-body {
  padding: 24px;
  max-height: 70vh;
  overflow-y: auto;
}

.dialog-footer {
  padding: 16px 24px;
  background-color: #f8fafc;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Wizard Steps */
.wizard-steps {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  background-color: #f8fafc;
}

.wizard-step {
  flex: 1;
  text-align: center;
  padding: 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  cursor: pointer;
}

.wizard-step.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  background-color: #ffffff;
}

.wizard-step.done {
  color: var(--success);
}

/* Form Elements */
.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-main);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 9px 12px;
  font-size: 13px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: #ffffff;
  color: var(--text-main);
  outline: none;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.form-hint {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
}

/* Kiosk Simulator Specifics */
.simulator-layout {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 24px;
}

@media (max-width: 1024px) {
  .simulator-layout {
    grid-template-columns: 1fr;
  }
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
}

.catalog-card {
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 12px;
  transition: all 0.15s ease;
  box-shadow: var(--shadow-sm);
}

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

.catalog-card-header {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.item-category {
  font-size: 10px;
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--primary);
}

.item-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
}

.item-sku {
  font-size: 11px;
  color: var(--text-muted);
  font-family: monospace;
}

.catalog-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.item-price {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
}

/* Kiosk Cart Panel */
.kiosk-cart-panel {
  background-color: #ffffff;
  border: 2px solid #0f172a;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.kiosk-screen-header {
  background-color: #0f172a;
  color: #ffffff;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.kiosk-brand {
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.kiosk-cart-items {
  padding: 16px;
  flex: 1;
  max-height: 280px;
  overflow-y: auto;
  border-bottom: 1px solid var(--border-color);
}

.cart-item-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px dashed var(--border-color);
}
.cart-item-row:last-child {
  border-bottom: none;
}

.cart-qty-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.qty-btn {
  width: 24px;
  height: 24px;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  background-color: #ffffff;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}
.qty-btn:hover {
  background-color: #f1f5f9;
}

.kiosk-coupon-box {
  padding: 16px;
  background-color: #f8fafc;
  border-bottom: 1px solid var(--border-color);
}

.kiosk-totals-box {
  padding: 16px;
  background-color: #ffffff;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
}

.total-row {
  display: flex;
  justify-content: space-between;
}

.total-row.discount {
  color: var(--success);
  font-weight: 600;
}

.total-row.payable {
  font-size: 18px;
  font-weight: 800;
  border-top: 1px solid var(--border-color);
  padding-top: 8px;
  color: var(--text-main);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 1000;
}

.toast {
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  background-color: #0f172a;
  color: #ffffff;
  font-size: 13px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideIn 0.2s ease;
}
.toast.success { background-color: #047857; }
.toast.error { background-color: #b91c1c; }
.toast.warning { background-color: #b45309; }

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

/* Login Card (Unauthenticated View) */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at top right, #312e81, #0f172a);
  padding: 20px;
}

.login-card {
  width: 100%;
  max-width: 420px;
  background-color: #ffffff;
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.demo-credentials-pill {
  background-color: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-sm);
  padding: 12px;
  font-size: 12px;
  color: var(--text-muted);
}

/* User Vouchers Modal & Components */
.vmodal-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 20px;
  gap: 4px;
}
.vmodal-tab {
  padding: 10px 18px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  border: none;
  background: transparent;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
}
.vmodal-tab:hover {
  color: var(--text-main);
}
.vmodal-tab.active {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
}
.vmodal-pane {
  display: none;
}
.vmodal-pane.active {
  display: block;
}
.voucher-filter-pill {
  cursor: pointer;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  color: var(--text-muted);
  transition: all 0.15s ease;
}
.voucher-filter-pill:hover {
  background-color: #f8fafc;
  color: var(--text-main);
}
.voucher-filter-pill.active {
  background-color: var(--primary-color);
  color: #ffffff;
  border-color: var(--primary-color);
}

/* Data Table Pagination & Sorting Controls */
.datatable-pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 18px;
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  font-size: 12px;
  color: var(--text-muted);
  border-bottom-left-radius: var(--radius-lg);
  border-bottom-right-radius: var(--radius-lg);
}
.pagination-info {
  display: flex;
  align-items: center;
  gap: 12px;
}
.pagination-controls {
  display: flex;
  align-items: center;
  gap: 4px;
}
.pagination-btn {
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: #ffffff;
  color: var(--text-main);
  cursor: pointer;
  transition: all 0.15s ease;
}
.pagination-btn:hover:not(:disabled) {
  background-color: #f1f5f9;
  border-color: #cbd5e1;
}
.pagination-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.pagination-btn.active {
  background-color: var(--primary-color);
  color: #ffffff;
  border-color: var(--primary-color);
}
th.sortable {
  cursor: pointer;
  user-select: none;
  transition: background-color 0.15s;
}
th.sortable:hover {
  background-color: #f1f5f9;
  color: var(--primary-color);
}
th.sortable .sort-indicator {
  display: inline-block;
  margin-left: 4px;
  font-size: 10px;
  color: #94a3b8;
}
th.sortable.sorted-asc .sort-indicator,
th.sortable.sorted-desc .sort-indicator {
  color: var(--primary-color);
  font-weight: 700;
}

/* Customer Segments Navigation Card */
.segment-nav-card {
  transition: all 0.15s ease-in-out;
}
.segment-nav-card:hover {
  border-color: #93c5fd !important;
  background-color: #f8fafc !important;
}
.segment-nav-card.active {
  border-color: #2563eb !important;
  background-color: #eff6ff !important;
  box-shadow: 0 1px 3px rgba(37, 99, 235, 0.1);
}