:root {
  /* MLBB Color Scheme */
  --mlbb-red: #FF4655;
  --mlbb-red-dark: #E63946;
  --mlbb-gold: #FFD700;
  --mlbb-gold-dark: #FFC600;
  --mlbb-blue: #1E3A8A;
  --mlbb-dark: #1F2937;
  --mlbb-darker: #111827;
  --mlbb-light: #F8FAFC;
  --mlbb-accent: #10B981;
  --mlbb-purple: #8B5CF6;
  
  /* Extended Color Palette */
  --success: #10B981;
  --error: #EF4444;
  --warning: #F59E0B;
  --info: #3B82F6;
  --whatsapp-green: #25D366;
  
  /* Spacing System */
  --space-2: 2px;
  --space-4: 4px;
  --space-6: 6px;
  --space-8: 8px;
  --space-12: 12px;
  --space-16: 16px;
  --space-20: 20px;
  --space-24: 24px;
  --space-32: 32px;
  --space-40: 40px;
  --space-48: 48px;
  
  /* Typography */
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-base: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-2xl: 24px;
  --font-size-3xl: 32px;
  --font-size-4xl: 40px;
  
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Borders */
  --radius-sm: 4px;
  --radius-base: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  --border-width: 1px;
  --border-width-thick: 2px;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.18);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.2);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms ease;
  
  /* Z-index */
  --z-index-base: 1;
  --z-index-dropdown: 10;
  --z-index-sticky: 20;
  --z-index-modal: 30;
  --z-index-overlay: 40;
}

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

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background-color: var(--mlbb-darker);
  color: var(--mlbb-light);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-image: url('https://i.ibb.co/gZmG5qGH/f06d748d5aa3faea03ec608af62ed6d2.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(26, 26, 46, 0.85);
  z-index: -1;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-semibold);
  line-height: 1.2;
  margin-bottom: var(--space-16);
}

h1 {
  font-size: var(--font-size-4xl);
  background: linear-gradient(90deg, var(--mlbb-red), var(--mlbb-gold));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

h2 {
  font-size: var(--font-size-3xl);
  color: var(--mlbb-light);
}

h3 {
  font-size: var(--font-size-2xl);
  color: var(--mlbb-gold);
}

p {
  margin-bottom: var(--space-16);
}

a {
  color: var(--mlbb-red);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--mlbb-gold);
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-24);
}

.section {
  padding: var(--space-40) 0;
}

/* Header */
.header {
  background: linear-gradient(135deg, var(--mlbb-dark), var(--mlbb-darker));
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  margin-bottom: var(--space-32);
  border: var(--border-width-thick) solid var(--mlbb-red);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--mlbb-red), var(--mlbb-gold));
}

.logo-container {
  display: flex;
  align-items: center;
  gap: var(--space-20);
  margin-bottom: var(--space-16);
}

.logo {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-base);
  border: var(--border-width-thick) solid var(--mlbb-gold);
  box-shadow: 0 0 15px rgba(255, 215, 0, 0.3);
  object-fit: contain;
}

.tagline {
  font-size: var(--font-size-lg);
  color: var(--mlbb-gold);
  opacity: 0.8;
}

.sync-status-bar {
  margin-top: var(--space-16);
  padding-top: var(--space-16);
  border-top: 1px solid rgba(255, 70, 85, 0.3);
}

.sync-indicator {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-16);
}

.sync-status {
  padding: var(--space-6) var(--space-12);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border: 1px solid;
}

.sync-status.connected {
  background: rgba(16, 185, 129, 0.2);
  color: var(--mlbb-accent);
  border-color: var(--mlbb-accent);
}

.sync-status.disconnected {
  background: rgba(107, 114, 128, 0.2);
  color: #9CA3AF;
  border-color: #6B7280;
}

.sync-status.error {
  background: rgba(239, 68, 68, 0.2);
  color: #EF4444;
  border-color: #EF4444;
}

/* Login Section */
.login-section {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 60vh;
}

.login-card {
  background: var(--mlbb-dark);
  border-radius: var(--radius-lg);
  padding: var(--space-32);
  width: 100%;
  max-width: 400px;
  border: var(--border-width-thick) solid var(--mlbb-red);
  box-shadow: var(--shadow-xl);
  position: relative;
  overflow: hidden;
}

.login-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--mlbb-red), var(--mlbb-gold));
}

.security-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  background: rgba(16, 185, 129, 0.1);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  color: var(--mlbb-accent);
  border: 1px solid rgba(16, 185, 129, 0.3);
  margin-bottom: var(--space-16);
}

.security-badge i {
  font-size: var(--font-size-sm);
}

.login-form {
  margin-bottom: var(--space-20);
}

.login-footer {
  text-align: center;
  font-size: var(--font-size-sm);
}

.login-footer a {
  color: var(--mlbb-gold);
}

.forgot-password {
  margin-top: var(--space-8);
}

/* Forms */
.form-group {
  margin-bottom: var(--space-16);
}

.form-label {
  display: block;
  margin-bottom: var(--space-8);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.form-control {
  width: 100%;
  padding: var(--space-12) var(--space-16);
  font-size: var(--font-size-base);
  border: var(--border-width) solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-base);
  background: rgba(0, 0, 0, 0.2);
  color: var(--mlbb-light);
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--mlbb-red);
  box-shadow: 0 0 0 3px rgba(255, 70, 85, 0.2);
}

.form-control::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.password-strength {
  margin-top: var(--space-8);
  height: 4px;
  background: var(--mlbb-dark);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.password-strength-bar {
  height: 100%;
  width: 0%;
  transition: width var(--transition-normal);
}

.password-strength.weak .password-strength-bar {
  background: var(--error);
  width: 30%;
}

.password-strength.medium .password-strength-bar {
  background: var(--warning);
  width: 60%;
}

.password-strength.strong .password-strength-bar {
  background: var(--success);
  width: 100%;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-12) var(--space-20);
  border-radius: var(--radius-base);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1.5;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(255, 70, 85, 0.3);
}

.btn--primary {
  background: linear-gradient(135deg, var(--mlbb-red), var(--mlbb-red-dark));
  color: white;
}

.btn--primary:hover {
  background: linear-gradient(135deg, var(--mlbb-red-dark), var(--mlbb-red));
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--primary:active {
  transform: translateY(0);
}

.btn--secondary {
  background: rgba(255, 255, 255, 0.1);
  color: white;
}

.btn--secondary:hover {
  background: rgba(255, 255, 255, 0.2);
}

.btn--outline {
  background: transparent;
  border: var(--border-width) solid var(--mlbb-red);
  color: var(--mlbb-red);
}

.btn--outline:hover {
  background: rgba(255, 70, 85, 0.1);
}

.btn--sm {
  padding: var(--space-8) var(--space-12);
  font-size: var(--font-size-sm);
}

.btn--full-width {
  width: 100%;
}

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

.btn i {
  margin-right: var(--space-8);
}

/* Store Content */
.store-content {
  display: none;
}

.user-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--mlbb-dark);
  padding: var(--space-16);
  border-radius: var(--radius-base);
  margin-bottom: var(--space-24);
  border: 1px solid rgba(255, 70, 85, 0.3);
}

.user-welcome {
  font-weight: var(--font-weight-medium);
}

.user-role {
  background: var(--mlbb-red);
  color: white;
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  font-weight: var(--font-weight-bold);
  margin-left: var(--space-8);
}

.user-actions {
  display: flex;
  gap: var(--space-8);
}

/* Payment Section */
.payment-section {
  margin-bottom: var(--space-32);
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-32);
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--mlbb-red), var(--mlbb-gold));
  margin: var(--space-16) auto 0;
  border-radius: var(--radius-full);
}

.payment-info-card {
  background: var(--mlbb-dark);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  border: 2px solid var(--mlbb-blue);
  box-shadow: 0 0 20px rgba(30, 58, 138, 0.3);
  display: grid;
  grid-template-columns: auto 1fr 1fr;
  gap: var(--space-24);
  align-items: center;
}

.payment-qr {
  display: flex;
  justify-content: center;
  align-items: center;
}

.qr-code {
  width: 140px;
  height: auto;
  border-radius: var(--radius-base);
  border: 1px solid var(--mlbb-gold);
  padding: var(--space-8);
  background: white;
}

.payment-method {
  margin-bottom: var(--space-20);
}

.payment-method:last-child {
  margin-bottom: 0;
}

.payment-method h3 {
  color: var(--mlbb-light);
  margin-bottom: var(--space-12);
  font-size: var(--font-size-lg);
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.upi-info, .whatsapp-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-16);
  flex-wrap: wrap;
}

.upi-id, .whatsapp-number {
  color: var(--mlbb-gold);
  font-family: monospace;
  font-weight: var(--font-weight-bold);
  background: rgba(255, 215, 0, 0.1);
  padding: var(--space-8) var(--space-12);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 215, 0, 0.3);
}

/* Packages Section */
.packages-section {
  margin-bottom: var(--space-32);
}

.package-category {
  margin-bottom: var(--space-32);
}

.category-title {
  color: var(--mlbb-light);
  margin-bottom: var(--space-20);
  font-size: var(--font-size-xl);
  text-align: center;
  position: relative;
}

.category-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 2px;
  background: var(--mlbb-gold);
  margin: var(--space-12) auto 0;
  opacity: 0.5;
}

.packages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-20);
}

.package-card {
  background: linear-gradient(135deg, var(--mlbb-dark), #374151);
  border-radius: var(--radius-lg);
  padding: var(--space-20);
  border: 2px solid transparent;
  background-clip: padding-box;
  position: relative;
  transition: all var(--transition-normal);
  cursor: pointer;
}

.package-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: var(--radius-lg);
  padding: 2px;
  background: linear-gradient(135deg, var(--mlbb-red), var(--mlbb-gold));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: exclude;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
}

.package-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(255, 70, 85, 0.3);
}

.package-card.special {
  border: 2px solid var(--mlbb-gold);
  background: linear-gradient(135deg, #1F2937, #374151);
  box-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
}

.package-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.diamond-count {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--mlbb-gold);
  margin-bottom: var(--space-8);
}

.package-price {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--mlbb-red);
}

.package-bonus {
  text-align: center;
  margin-bottom: var(--space-16);
}

.bonus-text {
  color: var(--mlbb-accent);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.package-btn {
  width: 100%;
  background: linear-gradient(135deg, var(--mlbb-red), var(--mlbb-red-dark));
  color: white;
  border: none;
  padding: var(--space-12) var(--space-16);
  border-radius: var(--radius-base);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: all var(--transition-normal);
  font-size: var(--font-size-base);
}

.package-btn:hover {
  background: linear-gradient(135deg, var(--mlbb-red-dark), var(--mlbb-red));
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(255, 70, 85, 0.4);
}

/* Modals */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: var(--z-index-modal);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--mlbb-dark);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 500px;
  max-height: 80vh;
  overflow-y: auto;
  transform: translateY(20px);
  transition: all var(--transition-normal);
  border: 2px solid var(--mlbb-red);
  box-shadow: var(--shadow-xl);
}

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

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-20);
  border-bottom: 1px solid rgba(255, 70, 85, 0.3);
}

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

.close-btn {
  background: none;
  border: none;
  font-size: var(--font-size-2xl);
  color: var(--mlbb-light);
  cursor: pointer;
  padding: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.close-btn:hover {
  color: var(--mlbb-red);
  background: rgba(255, 70, 85, 0.1);
}

.modal-body {
  padding: var(--space-20);
}

.order-summary {
  background: rgba(255, 70, 85, 0.1);
  border-radius: var(--radius-base);
  padding: var(--space-16);
  margin-bottom: var(--space-20);
  border: 1px solid rgba(255, 70, 85, 0.3);
}

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

.item-name {
  font-weight: var(--font-weight-semibold);
  color: var(--mlbb-light);
}

.item-price {
  font-weight: var(--font-weight-bold);
  color: var(--mlbb-red);
  font-size: var(--font-size-lg);
}

.payment-instructions {
  background: rgba(255, 215, 0, 0.1);
  border-radius: var(--radius-base);
  padding: var(--space-16);
  margin-bottom: var(--space-20);
  border: 1px solid rgba(255, 215, 0, 0.3);
}

.payment-instructions p {
  font-size: var(--font-size-sm);
  color: var(--mlbb-light);
  margin-bottom: var(--space-8);
}

/* Admin Panel */
.admin-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: 100%;
  max-width: 800px;
  height: 100vh;
  background: var(--mlbb-dark);
  z-index: var(--z-index-overlay);
  box-shadow: -5px 0 30px rgba(0, 0, 0, 0.5);
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  overflow-y: auto;
}

.admin-panel.active {
  transform: translateX(0);
}

.admin-header {
  padding: var(--space-20);
  border-bottom: 1px solid rgba(255, 70, 85, 0.3);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--mlbb-darker);
  position: sticky;
  top: 0;
  z-index: var(--z-index-sticky);
}

.admin-body {
  padding: var(--space-20);
}

.admin-tabs {
  display: flex;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: var(--space-20);
}

.tab-btn {
  padding: var(--space-12) var(--space-20);
  background: none;
  border: none;
  color: var(--mlbb-light);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  position: relative;
  opacity: 0.7;
  transition: all var(--transition-fast);
}

.tab-btn::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--mlbb-red);
  transform: scaleX(0);
  transition: transform var(--transition-fast);
}

.tab-btn.active {
  opacity: 1;
}

.tab-btn.active::after {
  transform: scaleX(1);
}

.tab-content {
  display: none;
}

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

.user-management-section, .order-management-section, .settings-section {
  margin-bottom: var(--space-32);
}

.add-user-form {
  display: grid;
  grid-template-columns: 1fr 1fr auto auto;
  gap: var(--space-12);
  margin-bottom: var(--space-20);
}

.users-list, .orders-list {
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-base);
  overflow: hidden;
}

.user-item, .order-item {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  padding: var(--space-12) var(--space-16);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  align-items: center;
}

.user-item:last-child, .order-item:last-child {
  border-bottom: none;
}

.user-actions, .order-actions {
  display: flex;
  gap: var(--space-8);
  justify-content: flex-end;
}

.user-role-badge {
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
}

.user-role-badge.customer {
  background: rgba(59, 130, 246, 0.2);
  color: var(--info);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.user-role-badge.vip {
  background: rgba(139, 92, 246, 0.2);
  color: var(--mlbb-purple);
  border: 1px solid rgba(139, 92, 246, 0.3);
}

.user-role-badge.admin {
  background: rgba(239, 68, 68, 0.2);
  color: var(--error);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.order-status {
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
}

.order-status.pending {
  background: rgba(245, 158, 11, 0.2);
  color: var(--warning);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.order-status.processing {
  background: rgba(59, 130, 246, 0.2);
  color: var(--info);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.order-status.completed {
  background: rgba(16, 185, 129, 0.2);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.order-filters {
  display: flex;
  gap: var(--space-8);
  margin-bottom: var(--space-16);
}

.filter-btn {
  padding: var(--space-8) var(--space-12);
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--mlbb-light);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  opacity: 0.7;
}

.filter-btn.active {
  background: var(--mlbb-red);
  opacity: 1;
  border-color: var(--mlbb-red);
}

.sync-controls-section {
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-base);
  padding: var(--space-16);
  margin-bottom: var(--space-16);
}

.sync-controls {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.sync-actions {
  display: flex;
  gap: var(--space-8);
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-top: var(--space-8);
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--mlbb-red), var(--mlbb-gold));
  transition: width var(--transition-slow);
}

.progress-text {
  font-size: var(--font-size-xs);
  color: var(--mlbb-light);
  opacity: 0.7;
  margin-top: var(--space-4);
}

/* Notification */
.notification {
  position: fixed;
  bottom: var(--space-20);
  left: 50%;
  transform: translateX(-50%);
  background: var(--mlbb-dark);
  color: white;
  padding: var(--space-12) var(--space-20);
  border-radius: var(--radius-base);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-index-overlay);
  display: flex;
  align-items: center;
  gap: var(--space-8);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.notification.active {
  opacity: 1;
  visibility: visible;
}

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

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

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

/* Loading Overlay */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: var(--z-index-overlay);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.loading-overlay.active {
  opacity: 1;
  visibility: visible;
}

.loading-spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(255, 255, 255, 0.1);
  border-top: 4px solid var(--mlbb-red);
  border-radius: var(--radius-full);
  animation: spin 1s linear infinite;
  margin-bottom: var(--space-16);
}

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

.loading-text {
  color: white;
  font-size: var(--font-size-lg);
}

/* Session Timeout Warning */
.session-timeout-warning {
  position: fixed;
  bottom: var(--space-20);
  left: 50%;
  transform: translateX(-50%);
  background: var(--warning);
  color: var(--mlbb-darker);
  padding: var(--space-12) var(--space-16);
  border-radius: var(--radius-base);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-index-overlay);
  display: flex;
  align-items: center;
  gap: var(--space-12);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.session-timeout-warning.active {
  opacity: 1;
  visibility: visible;
}

.session-timeout-warning i {
  font-size: var(--font-size-lg);
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: var(--space-16);
  }

  .header {
    padding: var(--space-16);
  }

  .logo-container {
    flex-direction: column;
    text-align: center;
    gap: var(--space-12);
  }

  .payment-info-card {
    grid-template-columns: 1fr;
    gap: var(--space-16);
  }

  .payment-qr {
    justify-self: center;
  }

  .add-user-form {
    grid-template-columns: 1fr;
  }

  .user-item, .order-item {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .user-actions, .order-actions {
    justify-content: flex-start;
  }

  .admin-panel {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .login-card {
    padding: var(--space-24) var(--space-16);
  }

  .packages-grid {
    grid-template-columns: 1fr;
  }

  .order-filters {
    flex-wrap: wrap;
  }

  .sync-actions {
    flex-direction: column;
  }
}