:root {
  --primary-color: #2c3e50;
  --secondary-color: #3498db;
  --accent-color: #e74c3c;
  --success-color: #27ae60;
  --light-color: #ecf0f1;
  --dark-color: #2c3e50;
  --gray-color: #95a5a6;
  --warning-color: #f39c12;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background-color: #f5f7fa;
  color: var(--dark-color);
  overflow-x: hidden;
}

.container {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 260px;
  background-color: var(--primary-color);
  color: white;
  padding: 20px 0;
  box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
  position: fixed;
  height: 100vh;
  overflow-y: auto;
  z-index: 1000;
  transition: transform 0.3s ease;
}

.sidebar.collapsed {
  transform: translateX(-100%);
}

.logo {
  text-align: center;
  padding: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 20px;
}

.logo h1 {
  font-size: 1.8rem;
  margin-bottom: 5px;
}

.logo p {
  color: var(--gray-color);
  font-size: 0.9rem;
}

.nav-menu {
  list-style: none;
}

.nav-item {
  margin-bottom: 5px;
}

.nav-link {
  display: flex;
  align-items: center;
  padding: 12px 20px;
  color: white;
  text-decoration: none;
  transition: all 0.3s;
}

.nav-link:hover,
.nav-link.active {
  background-color: rgba(255, 255, 255, 0.1);
  border-left: 3px solid var(--secondary-color);
}

.nav-link i {
  margin-right: 10px;
  width: 20px;
  text-align: center;
}

.main-content {
  flex: 1;
  padding: 20px;
  margin-left: 260px;
  overflow-y: auto;
  transition: margin-left 0.3s ease;
}

.main-content.expanded {
  margin-left: 0;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 20px;
  background-color: white;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  margin-bottom: 20px;
  border-radius: 8px;
}

.header h2 {
  font-size: 1.8rem;
  color: var(--primary-color);
}

.user-info {
  display: flex;
  align-items: center;
  gap: 15px;
}

.connection-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  padding: 4px 12px;
  border-radius: 20px;
  background: #f1f3f4;
  font-weight: 500;
  transition: all 0.3s ease;
}

.connection-status i {
  font-size: 8px;
}

.connection-status.online {
  color: var(--success-color);
  background: #e8f5e9;
}

.connection-status.offline {
  color: var(--warning-color);
  background: #fff3e0;
}

.user-info .user-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--secondary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 10px;
  color: white;
}

.user-info span {
  font-weight: 500;
}

.user-role {
  background-color: var(--secondary-color);
  color: white;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  margin-left: 8px;
}

.logout-btn {
  background: var(--accent-color);
  color: white;
  border: none;
  padding: 8px 15px;
  border-radius: 4px;
  cursor: pointer;
  margin-left: 15px;
  transition: background 0.3s;
}

.logout-btn:hover {
  background: #c0392b;
}

.mobile-menu-btn {
  display: none;
  background: var(--primary-color);
  color: white;
  border: none;
  padding: 10px 15px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1.2rem;
  position: fixed;
  top: 20px;
  left: 20px;
  z-index: 1001;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.pos-container {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 20px;
}

.products-section {
  background: white;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

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

.section-header h3 {
  font-size: 1.3rem;
  color: var(--dark-color);
}

.search-bar {
  display: flex;
  margin-bottom: 20px;
}

.search-bar input {
  flex: 1;
  padding: 12px 15px;
  border: 1px solid #ddd;
  border-radius: 4px 0 4px 0;
  font-size: 1rem;
}

.search-bar button {
  background: var(--secondary-color);
  color: white;
  border: none;
  padding: 0 15px;
  border-radius: 0 4px 4px 0;
  cursor: pointer;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 15px;
}

.product-card {
  border: 1px solid #eee;
  border-radius: 8px;
  padding: 15px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s;
}

.product-card:hover {
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  transform: translateY(-3px);
}

.product-card .product-img {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
  background-color: #f9f9f9;
  border-radius: 4px;
}

.product-card .product-img i {
  font-size: 2.5rem;
  color: var(--secondary-color);
}

.product-card h4 {
  font-size: 0.9rem;
  margin-bottom: 5px;
}

.product-card .price {
  font-weight: 700;
  color: var(--accent-color);
}

.product-card .stock {
  font-size: 0.8rem;
  color: var(--gray-color);
}

.product-card .expiry-warning {
  font-size: 0.75rem;
  color: var(--warning-color);
  margin-top: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-card .expiry-warning i {
  margin-right: 4px;
}

.cart-section {
  background: white;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  height: fit-content;
}

.cart-section h3 {
  color: var(--primary-color);
  margin-bottom: 20px;
}

.cart-items {
  margin-bottom: 20px;
  max-height: 400px;
  overflow-y: auto;
}

.cart-item {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid #eee;
}

.cart-item:last-child {
  border-bottom: none;
}

.cart-item-info {
  flex: 1;
}

.cart-item-name {
  font-weight: 500;
}

.cart-item-price {
  color: var(--gray-color);
  font-size: 0.9rem;
}

.cart-item-qty {
  display: flex;
  align-items: center;
  margin-top: 5px;
}

.cart-item-qty button {
  background: #f0f0f0;
  border: none;
  width: 24px;
  height: 24px;
  border-radius: 4px;
  cursor: pointer;
}

.cart-item-qty input {
  width: 40px;
  text-align: center;
  border: 1px solid #eee;
  margin: 0 5px;
}

.cart-item-total {
  font-weight: 700;
  color: var(--dark-color);
}

.cart-summary {
  border-top: 1px solid #eee;
  padding-top: 15px;
  margin-top: 15px;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
}

.summary-row.total {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--dark-color);
  border-top: 1px solid #eee;
  padding-top: 10px;
}

.cart-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 20px;
}

.btn {
  padding: 12px 15px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 500;
  text-align: center;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

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

.btn-primary:hover {
  background: #2980b9;
}

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

.btn-success:hover {
  background: #229954;
}

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

.btn-danger:hover {
  background: #c0392b;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--gray-color);
  color: var(--dark-color);
}

.btn-outline:hover {
  background: #f0f0f0;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn.loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  margin: auto;
  border: 2px solid transparent;
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.8);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 10;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid rgba(0, 0, 0, 0.1);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s ease-in-out infinite;
}

.inventory-container {
  background: white;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  position: relative;
}

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

.inventory-value {
  background: #f8f9fa;
  border-radius: 8px;
  padding: 15px;
  margin-bottom: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.inventory-value h3 {
  margin: 0;
  color: var(--dark-color);
}

.inventory-value .value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--success-color);
}

.inventory-table {
  width: 100%;
  border-collapse: collapse;
}

.inventory-table th,
.inventory-table td {
  padding: 12px 15px;
  text-align: left;
  border-bottom: 1px solid #eee;
}

.inventory-table th {
  background-color: #f8f9fa;
  font-weight: 600;
  color: var(--dark-color);
}

.inventory-table tr:hover {
  background-color: #f8f9fa;
}

.inventory-table tr.expiring-soon {
  background-color: #fff8e1;
}

.inventory-table tr.expired {
  background-color: #ffebee;
}

.stock-badge {
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 500;
}

.stock-high {
  background-color: #d4edda;
  color: #155724;
}

.stock-medium {
  background-color: #fff3cd;
  color: #856404;
}

.stock-low {
  background-color: #f8d7da;
  color: #721c24;
}

.expiry-badge {
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 500;
}

.expiry-good {
  background-color: #d4edda;
  color: #155724;
}

.expiry-warning {
  background-color: #fff3cd;
  color: #856404;
}

.expiry-expired {
  background-color: #f8d7da;
  color: #721c24;
}

.action-buttons {
  display: flex;
  gap: 5px;
}

.action-buttons button {
  padding: 5px 8px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  color: white;
}

.btn-edit {
  background: var(--secondary-color);
}

.btn-delete {
  background: var(--accent-color);
}

.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1002;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background: white;
  border-radius: 8px;
  width: 90%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.modal-header {
  padding: 15px 20px;
  border-bottom: 1px solid #eee;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  margin: 0;
  color: var(--dark-color);
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--gray-color);
}

.modal-body {
  padding: 20px;
}

.form-group {
  margin-bottom: 15px;
}

.form-group label {
  display: block;
  margin-bottom: 5px;
  font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1rem;
}

.modal-footer {
  padding: 15px 20px;
  border-top: 1px solid #eee;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.receipt {
  background: white;
  padding: 20px;
  border-radius: 8px;
  max-width: 400px;
  margin: 0 auto;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  font-family: 'Courier New', monospace;
}

.receipt-header {
  text-align: center;
  margin-bottom: 20px;
  border-bottom: 1px dashed #ccc;
  padding-bottom: 10px;
}

.receipt-header h2 {
  margin-bottom: 5px;
}

.receipt-header p {
  margin: 2px 0;
  font-size: 0.9rem;
}

.receipt-items {
  margin-bottom: 20px;
}

.receipt-item {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
}

.receipt-footer {
  border-top: 1px dashed #ccc;
  padding-top: 10px;
}

.receipt-total {
  display: flex;
  justify-content: space-between;
  font-weight: 700;
  margin-bottom: 5px;
}

.receipt-actions {
  margin-top: 20px;
  display: flex;
  gap: 10px;
}

.notification {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: 15px 20px;
  border-radius: 4px;
  color: white;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  z-index: 2000;
  display: none;
  align-items: center;
  transform: translateX(150%);
  transition: transform 0.3s ease-out;
}

.notification.show {
  transform: translateX(0);
}

.notification.success {
  background: var(--success-color);
}

.notification.error {
  background: var(--accent-color);
}

.notification.warning {
  background: var(--warning-color);
}

.notification.info {
  background: var(--secondary-color);
}

.notification i {
  margin-right: 10px;
  font-size: 1.2rem;
}

.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
}

.login-card {
  background: white;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  width: 400px;
  padding: 40px;
}

.login-header {
  text-align: center;
  margin-bottom: 30px;
}

.login-header h1 {
  color: var(--primary-color);
  margin-bottom: 10px;
}

.login-header p {
  color: var(--gray-color);
}

.login-tabs {
  display: flex;
  margin-bottom: 20px;
  border-bottom: 1px solid #eee;
}

.login-tab {
  flex: 1;
  padding: 10px;
  text-align: center;
  cursor: pointer;
  font-weight: 500;
}

.login-tab.active {
  border-bottom: 2px solid var(--secondary-color);
  color: var(--secondary-color);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.login-btn {
  width: 100%;
  padding: 12px;
  background: var(--secondary-color);
  color: white;
  border: none;
  border-radius: 4px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s;
}

.login-btn:hover {
  background: #2980b9;
}

.login-error {
  color: var(--accent-color);
  margin-top: 15px;
  text-align: center;
  display: none;
}

.user-management {
  background: white;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  margin-bottom: 20px;
}

.user-info-card {
  background: #f8f9fa;
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
}

.user-info-card h3 {
  margin-bottom: 15px;
}

.user-info-card .info-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid #eee;
}

.user-info-card .info-row:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.user-info-card .info-label {
  font-weight: 600;
  color: var(--dark-color);
}

.user-info-card .info-value {
  color: var(--gray-color);
}

.empty-state {
  text-align: center;
  padding: 40px;
  color: var(--gray-color);
}

.empty-state i {
  font-size: 3rem;
  margin-bottom: 15px;
  color: #ddd;
}

.empty-state h3 {
  margin-bottom: 10px;
}

.deleted-sales-section {
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px dashed #ddd;
}

.deleted-sales-section h4 {
  color: var(--accent-color);
  margin-bottom: 15px;
  display: flex;
  align-items: center;
}

.deleted-sales-section h4 i {
  margin-right: 8px;
}

.deleted-sales-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 15px;
}

.deleted-sales-table th,
.deleted-sales-table td {
  padding: 10px 15px;
  text-align: left;
  border-bottom: 1px solid #eee;
}

.deleted-sales-table th {
  background-color: #f8f9fa;
  font-weight: 600;
  color: var(--dark-color);
}

.deleted-sales-table tr {
  background-color: #f9f9f9;
}

.deleted-badge {
  background-color: var(--accent-color);
  color: white;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 500;
}

.daily-report-controls {
  background: #f8f9fa;
  border-radius: 8px;
  padding: 15px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 15px;
  flex-wrap: wrap;
}

.daily-report-controls label {
  font-weight: 600;
  color: var(--dark-color);
}

.daily-report-controls input {
  padding: 8px 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1rem;
}

.daily-report-controls button {
  padding: 8px 15px;
  background: var(--secondary-color);
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

.daily-report-controls button:hover {
  background: #2980b9;
}

.daily-summary {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 15px;
  margin-bottom: 20px;
}

.daily-summary-card {
  background: white;
  border-radius: 8px;
  padding: 15px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
  text-align: center;
}

.daily-summary-card .value {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--dark-color);
  margin-bottom: 5px;
}

.daily-summary-card .label {
  color: var(--gray-color);
  font-size: 0.9rem;
}

.daily-sales-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 15px;
}

.daily-sales-table th,
.daily-sales-table td {
  padding: 12px 15px;
  text-align: left;
  border-bottom: 1px solid #eee;
}

.daily-sales-table th {
  background-color: #f8f9fa;
  font-weight: 600;
  color: var(--dark-color);
}

.daily-sales-table tr:hover {
  background-color: #f8f9fa;
}

.report-section {
  margin-bottom: 30px;
}

.report-section h3 {
  margin-bottom: 15px;
  color: var(--dark-color);
  display: flex;
  align-items: center;
}

.report-section h3 i {
  margin-right: 8px;
  color: var(--secondary-color);
}

.no-data {
  text-align: center;
  padding: 20px;
  color: var(--gray-color);
  font-style: italic;
}

.install-btn {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--success-color);
  color: white;
  border: none;
  padding: 12px 20px;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  display: none;
  align-items: center;
  gap: 8px;
  z-index: 999;
  transition: all 0.3s ease;
}

.install-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.install-btn i {
  font-size: 1.2rem;
}

.offline-indicator {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--warning-color);
  color: white;
  text-align: center;
  padding: 10px;
  font-weight: 600;
  display: none;
  z-index: 1002;
}

.offline-indicator.show {
  display: block;
}

.sync-status {
  position: fixed;
  bottom: 20px;
  left: 20px;
  background: var(--success-color);
  color: white;
  padding: 8px 15px;
  border-radius: 4px;
  font-size: 0.8rem;
  display: none;
  z-index: 999;
}

.sync-status.show {
  display: block;
}

.sync-status.syncing {
  background: var(--warning-color);
}

.sync-status.error {
  background: var(--accent-color);
}

.sync-status i {
  animation: spin 1s linear infinite;
}

.users-container {
  background: white;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  margin-top: 20px;
}

.users-container h3 {
  margin-bottom: 15px;
  color: var(--dark-color);
}

.users-list {
  display: grid;
  gap: 15px;
}

.user-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px;
  background: #f8f9fa;
  border-radius: 8px;
}

.user-card .user-info {
  display: flex;
  flex-direction: column;
}

.user-card .user-info strong {
  margin-bottom: 5px;
}

.user-card .user-info span {
  color: var(--gray-color);
  font-size: 0.9rem;
}

.role-badge {
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 500;
  margin-top: 5px;
  display: inline-block;
}

.role-badge.admin {
  background-color: #d4edda;
  color: #155724;
}

.role-badge.cashier {
  background-color: #d1ecf1;
  color: #0c5460;
}

/* New styles for expenses, purchases, and analytics */
.expense-summary,
.purchase-summary,
.analytics-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.summary-card {
  background: white;
  border-radius: 8px;
  padding: 1rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.summary-card h3 {
  margin: 0 0 0.5rem 0;
  color: #666;
  font-size: 0.9rem;
}

.summary-card p {
  margin: 0;
  font-size: 1.5rem;
  font-weight: bold;
  color: #333;
}

.analytics-charts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.chart-container {
  background: white;
  border-radius: 8px;
  padding: 1rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.chart-container h3 {
  margin: 0 0 1rem 0;
  color: #333;
}

.simple-bar-chart {
  width: 100%;
}

.bar-item {
  display: flex;
  align-items: center;
  margin-bottom: 0.5rem;
}

.bar-label {
  width: 100px;
  font-size: 0.8rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.bar-container {
  flex: 1;
  height: 20px;
  background: #f0f0f0;
  border-radius: 4px;
  margin: 0 0.5rem;
}

.bar {
  height: 100%;
  background: #4a6fdc;
  border-radius: 4px;
}

.bar-value {
  width: 80px;
  text-align: right;
  font-size: 0.8rem;
}

.simple-line-chart {
  display: flex;
  height: 200px;
  width: 100%;
}

.chart-y-axis {
  width: 80px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 0 0.5rem;
}

.y-label {
  font-size: 0.7rem;
  text-align: right;
}

.chart-content {
  flex: 1;
  position: relative;
}

.chart-grid {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.grid-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: #e0e0e0;
}

.chart-data {
  position: relative;
  height: 100%;
}

.chart-point {
  position: absolute;
  transform: translateX(-50%);
}

.point {
  width: 8px;
  height: 8px;
  background: #4a6fdc;
  border-radius: 50%;
  margin: 0 auto;
}

.point-label {
  font-size: 0.7rem;
  text-align: center;
  margin-top: 0.5rem;
  transform: rotate(-45deg);
  transform-origin: left top;
}

.analytics-alerts {
  background: white;
  border-radius: 8px;
  padding: 1rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.analytics-alerts h3 {
  margin-bottom: 1rem;
  color: #333;
  display: flex;
  align-items: center;
}

.tabs {
  display: flex;
  margin-bottom: 1rem;
  border-bottom: 1px solid #e0e0e0;
}

.tab-btn {
  background: none;
  border: none;
  padding: 0.5rem 1rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

.tab-btn.active {
  border-bottom-color: #4a6fdc;
  color: #4a6fdc;
}

.tab-content {
  position: relative;
}

.tab-pane {
  display: none;
}

.tab-pane.active {
  display: block;
}

.alert-item {
  display: flex;
  align-items: center;
  padding: 0.75rem;
  border-radius: 4px;
  margin-bottom: 0.5rem;
  background: #f8f9fa;
}

.alert-item.low_stock {
  border-left: 4px solid #ffc107;
}

.alert-item.expiry_warning {
  border-left: 4px solid #fd7e14;
}

.alert-item.discrepancy {
  border-left: 4px solid #dc3545;
}

.alert-icon {
  margin-right: 0.75rem;
  color: #666;
}

.alert-content {
  flex: 1;
}

.alert-message {
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.alert-time {
  font-size: 0.8rem;
  color: #666;
}

.alert-actions {
  margin-left: 0.75rem;
}

.btn-sm {
  padding: 0.25rem 0.5rem;
  font-size: 0.8rem;
}

.table-container {
  background: white;
  border-radius: 8px;
  padding: 1rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.table-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.table-actions {
  display: flex;
  gap: 0.5rem;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: 1px solid #e0e0e0;
}

.data-table th {
  font-weight: 600;
  color: #666;
}

.highlight {
  background-color: #fff3cd !important;
  animation: highlight-fade 3s ease-in-out;
}

@keyframes highlight-fade {
  0% {
    background-color: #fff3cd;
  }
  100% {
    background-color: transparent;
  }
}

.page-actions {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

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

.page-header h2 {
  margin: 0;
}

.modal-loading {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

@media (max-width: 992px) {
  .pos-container {
    grid-template-columns: 1fr;
  }
  .cart-section {
    order: -1;
  }
  .analytics-charts {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: block;
  }
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.active {
    transform: translateX(0);
  }
  .main-content {
    margin-left: 0;
  }
  .nav-menu {
    display: flex;
    overflow-x: auto;
  }
  .nav-item {
    margin-bottom: 0;
  }
  .nav-link {
    padding: 10px;
    flex-direction: column;
    align-items: center;
    font-size: 0.8rem;
  }
  .nav-link i {
    margin-right: 0;
    margin-bottom: 5px;
  }
  .daily-report-controls {
    flex-direction: column;
    align-items: flex-start;
  }
  .daily-summary {
    grid-template-columns: 1fr;
  }
  .expense-summary,
  .purchase-summary,
  .analytics-summary {
    grid-template-columns: 1fr;
  }
  .page-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  .inventory-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}

@media (max-width: 576px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .cart-actions {
    grid-template-columns: 1fr;
  }
  .login-card {
    width: 90%;
    padding: 30px 20px;
  }
  .header {
    flex-direction: column;
    align-items: flex-start;
    gap: 15px;
  }
  .modal-content {
    width: 95%;
    margin: 20px;
  }
  .table-actions {
    flex-direction: column;
    gap: 10px;
  }
  .table-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}
/* Inventory paging controls and responsive table */
.page-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.page-actions .btn {
  padding: 8px 12px;
}
.inventory-table {
  width: 100%;
}
.inventory-table tbody tr:nth-child(odd) {
  background: rgba(0, 0, 0, 0.02);
}
.inventory-table th,
.inventory-table td {
  padding: 10px;
  vertical-align: middle;
}

@media (max-width: 768px) {
  .inventory-table thead {
    display: none;
  }
  .inventory-table tr {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    padding: 10px;
  }
  .inventory-table td {
    display: flex;
    justify-content: space-between;
  }
}