/* ===== CSS VARIABLES ===== */
:root {
  --primary-color: #2563eb;
  --primary-dark: #1d4ed8;
  --secondary-color: #f59e0b;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --info-color: #3b82f6;
  
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;
  
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-tertiary: #f3f4f6;
  
  --border-color: #e5e7eb;
  --border-light: #f3f4f6;
  
  --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: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  
  --sidebar-width: 280px;
  --topbar-height: 70px;
}

/* ===== RESET & BASE STYLES ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--bg-secondary);
  overflow-x: hidden;
}

/* ===== LAYOUT ===== */
body {
  display: flex;
  min-height: 100vh;
}

/* ===== SIDEBAR ===== */
.sidebar {
  width: var(--sidebar-width);
  height: 100vh;
  position: fixed;
  left: 0;
  top: 0;
  background-image: url('image/banner-bg.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: white;
  overflow-y: auto;
  z-index: 1000;
  transition: var(--transition);
  box-shadow: var(--shadow-xl);
}

.sidebar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.3);
  z-index: -1;
}

.sidebar * {
  position: relative;
  z-index: 1;
}

.logo {
  padding: 1.5rem;
  text-align: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 1rem;
}

.logo-img {
  width: 48px;
  height: 48px;
  margin-bottom: 0.5rem;
  border-radius: var(--radius-md);
}

.logo-text {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.brand {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.subtitle {
  font-size: 0.75rem;
  opacity: 0.8;
  margin-top: 0.25rem;
}

.sidebar-nav {
  padding: 0 1rem;
}

.menu {
  list-style: none;
  margin-bottom: 2rem;
}

.menu-item {
  display: flex;
  align-items: center;
  padding: 0.75rem 1rem;
  margin-bottom: 0.5rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
}

.menu-item:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateX(4px);
}

.menu-item.active {
  background: rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-md);
}

.menu-item i {
  width: 20px;
  margin-right: 0.75rem;
  font-size: 1rem;
}

.menu-item span {
  font-size: 0.875rem;
}

.sidebar-footer {
  padding: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: auto;
}

.logout-btn {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(239, 68, 68, 0.9);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 500;
}

.logout-btn:hover {
  background: rgba(239, 68, 68, 1);
  transform: translateY(-1px);
}

.logout-btn i {
  margin-right: 0.5rem;
}

/* ===== MAIN CONTENT ===== */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  transition: var(--transition);
}

.content-wrapper {
  padding: 1.5rem;
}

/* ===== TOPBAR ===== */
.topbar {
  position: sticky;
  top: 0;
  background: var(--bg-primary);
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.sidebar-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.25rem;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--radius-md);
  transition: var(--transition);
}

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

.breadcrumb {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
}

.topbar-center {
  flex: 1;
  max-width: 500px;
  margin: 0 2rem;
}

.search-container {
  position: relative;
  width: 100%;
}

.search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.875rem;
}

#searchInput {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.5rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: var(--bg-secondary);
  font-size: 0.875rem;
  transition: var(--transition);
}

#searchInput:focus {
  outline: none;
  border-color: var(--primary-color);
  background: var(--bg-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.notifications {
  position: relative;
}

.notification-btn {
  background: none;
  border: none;
  font-size: 1.125rem;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--radius-md);
  transition: var(--transition);
  position: relative;
}

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

.notification-badge {
  position: absolute;
  top: 0;
  right: 0;
  background: var(--danger-color);
  color: white;
  font-size: 0.75rem;
  padding: 0.125rem 0.375rem;
  border-radius: 9999px;
  min-width: 18px;
  text-align: center;
}

.profile-dropdown {
  position: relative;
}

.profile-btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: none;
  border: none;
  padding: 0.5rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
}

.profile-btn:hover {
  background: var(--bg-tertiary);
}

.profile-img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}

.profile-name {
  font-weight: 500;
  color: var(--text-primary);
}

/* ===== CONTENT SECTIONS ===== */
.content-section {
  display: none;
  animation: fadeIn 0.3s ease-in-out;
}

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

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.section-header h1 {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--text-primary);
}

.section-subtitle {
  color: var(--text-secondary);
  margin-top: 0.5rem;
  font-size: 1rem;
}

/* ===== STATISTICS CARDS ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--bg-primary);
  padding: 1.5rem;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  border: 1px solid var(--border-light);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.stat-card {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.stat-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
}

.stat-card:nth-child(1) .stat-icon {
  background: linear-gradient(135deg, var(--success-color), #059669);
}

.stat-card:nth-child(2) .stat-icon {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

.stat-card:nth-child(3) .stat-icon {
  background: linear-gradient(135deg, var(--warning-color), #d97706);
}

.stat-card:nth-child(4) .stat-icon {
  background: linear-gradient(135deg, var(--info-color), #2563eb);
}

.stat-content h3 {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.stat-value {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.stat-change {
  font-size: 0.75rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.stat-change.positive {
  color: var(--success-color);
}

.stat-change.negative {
  color: var(--danger-color);
}

.stat-change.neutral {
  color: var(--text-muted);
}

/* ===== ANALYTICS GRID ===== */
.analytics-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.chart-container {
  background: var(--bg-primary);
  padding: 1.5rem;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
}

.chart-container h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.chart-placeholder {
  height: 300px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  border: 2px dashed var(--border-color);
}

.top-products-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.product-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

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

.product-item img {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  object-fit: cover;
}

.product-info h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

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

/* ===== TABLE STYLES ===== */
.table-container {
  background: var(--bg-primary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
  overflow: hidden;
}

.table-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.table-header h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.view-all-btn {
  background: var(--primary-color);
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.875rem;
  font-weight: 500;
}

.view-all-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.table-responsive {
  overflow-x: auto;
}

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

.data-table th {
  background: var(--bg-secondary);
  padding: 1rem 1.5rem;
  text-align: left;
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.875rem;
  border-bottom: 1px solid var(--border-color);
}

.data-table td {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.875rem;
}

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

.customer-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.customer-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
}

.status-badge {
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.status-badge.completed {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success-color);
}

.status-badge.pending {
  background: rgba(245, 158, 11, 0.1);
  color: var(--warning-color);
}

.status-badge.processing {
  background: rgba(59, 130, 246, 0.1);
  color: var(--info-color);
}

.status-badge.cancelled {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger-color);
}

.status-badge.in-transit {
  background: rgba(59, 130, 246, 0.1);
  color: var(--info-color);
}

.action-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--radius-md);
  transition: var(--transition);
}

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

/* ===== DELIVERY STYLES ===== */
.delivery-filters {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.delivery-filters select {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.875rem;
  cursor: pointer;
  transition: var(--transition);
}

.delivery-filters select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.delivery-count {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  font-weight: 500;
}

/* ===== BUTTONS ===== */
.primary-btn {
  background: var(--primary-color);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.primary-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* ===== PRODUCTS GRID ===== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

.product-card {
  background: var(--bg-primary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: var(--transition);
  border: 1px solid var(--border-light);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.product-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.product-details {
  padding: 1.5rem;
}

.product-details h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.product-price {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.product-stock,
.product-category {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}

.product-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

.btn-edit,
.btn-delete {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.875rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

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

.btn-edit:hover {
  background: #2563eb;
  transform: translateY(-1px);
}

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

.btn-delete:hover {
  background: #dc2626;
  transform: translateY(-1px);
}

/* ===== ORDERS LIST ===== */
.orders-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1rem;
}

.order-item {
  background: var(--bg-primary);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.order-item:hover {
  box-shadow: var(--shadow-lg);
}

.order-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-light);
}

.order-header h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.order-details {
  margin-bottom: 1rem;
}

.order-details p {
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
}

.order-details strong {
  color: var(--text-primary);
}

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

.btn-view,
.btn-update {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.875rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

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

.btn-view:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

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

.btn-update:hover {
  background: #d97706;
  transform: translateY(-1px);
}

/* ===== CUSTOMERS LIST ===== */
.customers-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1rem;
}

.customer-item {
  background: var(--bg-primary);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  gap: 1.5rem;
  transition: var(--transition);
}

.customer-item:hover {
  box-shadow: var(--shadow-lg);
}

.customer-avatar {
  width: 60px;
  height: 60px;
  background: var(--bg-tertiary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--text-muted);
}

.customer-details {
  flex: 1;
}

.customer-details h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.customer-details p {
  margin-bottom: 0.25rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.customer-details i {
  width: 16px;
  color: var(--text-muted);
}

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

/* ===== LOADING STATES ===== */
.products-loading,
.orders-loading,
.customers-loading {
  text-align: center;
  padding: 3rem;
  color: var(--text-muted);
}

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  backdrop-filter: blur(4px);
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background: var(--bg-primary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  max-width: 90vw;
  max-height: 90vh;
  overflow: hidden;
  animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: scale(0.9) translateY(-20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--radius-md);
  transition: var(--transition);
}

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

.modal-body {
  padding: 1.5rem;
  max-height: 70vh;
  overflow-y: auto;
}

/* ===== FORM STYLES ===== */
.add-product-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-weight: 500;
  color: var(--text-primary);
  font-size: 0.875rem;
}

.form-group input,
.form-group select {
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-actions {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
}

.btn-secondary:hover {
  background: var(--bg-tertiary);
}

/* ===== TOAST NOTIFICATIONS ===== */
.toast-container {
  position: fixed;
  top: 2rem;
  right: 2rem;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.toast {
  background: var(--bg-primary);
  color: var(--text-primary);
  padding: 1rem 1.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--primary-color);
  min-width: 300px;
  animation: toastSlideIn 0.3s ease-out;
}

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

.toast.success {
  border-left-color: var(--success-color);
}

.toast.error {
  border-left-color: var(--danger-color);
}

.toast.warning {
  border-left-color: var(--warning-color);
}

.toast-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.toast-close {
  background: none;
  border: none;
  font-size: 1.25rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0;
  margin-left: 1rem;
}

.toast-close:hover {
  color: var(--text-primary);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
  .analytics-grid {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }
  
  .products-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  }
}

@media (max-width: 768px) {
  :root {
    --sidebar-width: 0px;
  }
  
  .sidebar {
    transform: translateX(-100%);
  }
  
  .sidebar.active {
    transform: translateX(0);
  }
  
  .sidebar-toggle {
    display: block;
  }
  
  .topbar-center {
    margin: 0 1rem;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .table-responsive {
    font-size: 0.75rem;
  }
  
  .data-table th,
  .data-table td {
    padding: 0.75rem 1rem;
  }
  
  .content-wrapper {
    padding: 1rem;
  }
  
  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .customer-item {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }
  
  .customer-actions {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .topbar {
    padding: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
  }
  
  .topbar-center {
    order: 3;
    margin: 0;
    width: 100%;
  }
  
  .search-container {
    max-width: none;
  }
  
  .modal {
    margin: 1rem;
    max-width: calc(100vw - 2rem);
  }
  
  .form-actions {
    flex-direction: column;
  }
}

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

.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-5 { margin-bottom: 1.25rem; }
.mb-6 { margin-bottom: 1.5rem; }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-5 { margin-top: 1.25rem; }
.mt-6 { margin-top: 1.5rem; }

/* ===== SCROLLBAR STYLING ===== */
::-webkit-scrollbar {
  width: 6px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}

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

/* ===== LOADING STATES ===== */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid var(--border-color);
  border-top: 2px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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