/* Modern Design System */
:root {
  /* Primary Color Palette */
  --primary-50: #f0f9ff;
  --primary-100: #e0f2fe;
  --primary-500: #0ea5e9;
  --primary-600: #0284c7;
  --primary-700: #0369a1;
  --primary-800: #075985;
  --primary-900: #0c4a6e;

  /* Secondary Color Palette */
  --secondary-50: #f8fafc;
  --secondary-100: #f1f5f9;
  --secondary-200: #e2e8f0;
  --secondary-300: #cbd5e1;
  --secondary-400: #94a3b8;
  --secondary-500: #64748b;
  --secondary-600: #475569;
  --secondary-700: #334155;
  --secondary-800: #1e293b;
  --secondary-900: #0f172a;

  /* Success/Warning/Error Colors */
  --success-50: #f0fdf4;
  --success-500: #22c55e;
  --success-600: #16a34a;
  --warning-50: #fffbeb;
  --warning-500: #f59e0b;
  --warning-600: #d97706;
  --error-50: #fef2f2;
  --error-500: #ef4444;
  --error-600: #dc2626;

  /* WhatsApp Brand */
  --whatsapp-green: #25D366;
  --whatsapp-light: #DCF8C6;
  --whatsapp-dark: #128C7E;

  /* Typography */
  --font-family-sans: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-family-mono: 'JetBrains Mono', 'Monaco', 'Menlo', monospace;

  /* Spacing Scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;

  /* Shadows */
  --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);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-family-sans);
  background-color: var(--secondary-50);
  color: var(--secondary-900);
  line-height: 1.6;
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================================================
   APP LAYOUT
   ============================================================================ */

.app {
  display: flex;
  min-height: 100vh;
  background: linear-gradient(135deg, var(--primary-50) 0%, var(--secondary-50) 100%);
}

/* ============================================================================
   SIDEBAR
   ============================================================================ */

.sidebar {
  width: 280px;
  background: linear-gradient(180deg, var(--secondary-900) 0%, var(--secondary-800) 100%);
  color: white;
  position: fixed;
  height: 100vh;
  overflow-y: auto;
  z-index: 1000;
  box-shadow: var(--shadow-xl);
  border-right: 1px solid var(--secondary-700);
}

.sidebar-header {
  padding: var(--space-6);
  border-bottom: 1px solid var(--secondary-700);
  background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);
}

.sidebar-header h2 {
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  letter-spacing: -0.025em;
}

.sidebar-nav {
  padding: var(--space-4) 0;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-6);
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: all var(--transition-base);
  border-left: 3px solid transparent;
  font-weight: 500;
  position: relative;
}

.nav-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--whatsapp-green);
  transform: scaleY(0);
  transition: transform var(--transition-base);
}

.nav-item:hover,
.nav-item.active {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.1) 0%, transparent 100%);
  color: white;
}

.nav-item:hover::before,
.nav-item.active::before {
  transform: scaleY(1);
}

.nav-item i {
  width: 20px;
  text-align: center;
  font-size: 1.1rem;
}

.sidebar-footer {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: var(--space-4);
  border-top: 1px solid var(--secondary-700);
  background: var(--secondary-800);
}

.logout-btn {
  width: 100%;
  padding: var(--space-3);
  background: rgba(239, 68, 68, 0.1);
  color: white;
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-weight: 500;
}

.logout-btn:hover {
  background: rgba(239, 68, 68, 0.2);
  border-color: rgba(239, 68, 68, 0.5);
  transform: translateY(-1px);
}

/* ============================================================================
   MAIN CONTENT
   ============================================================================ */

.main-content {
  margin-left: 280px;
  flex: 1;
  padding: var(--space-8);
  background: transparent;
  min-height: 100vh;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-8);
  background: white;
  padding: var(--space-6);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--secondary-200);
}

.header h1 {
  color: var(--secondary-900);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.025em;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--secondary-600);
  font-weight: 500;
  padding: var(--space-2) var(--space-4);
  background: var(--secondary-50);
  border-radius: var(--radius-lg);
  border: 1px solid var(--secondary-200);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--error-500);
  animation: pulse 2s infinite;
}

.status-dot.online {
  background-color: var(--success-500);
  animation: none;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.5;
  }
}

/* ============================================================================
   TAB CONTENT
   ============================================================================ */

.tab-content {
  display: none;
  animation: fadeIn 0.3s ease-in-out;
}

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

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

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================================================
   FORM CONTROLS
   ============================================================================ */

.form-control {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 2px solid var(--secondary-200);
  border-radius: var(--radius-lg);
  background: white;
  font-size: 0.9rem;
  font-family: var(--font-family-sans);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
  background: var(--primary-50);
}

.form-control:hover:not(:focus) {
  border-color: var(--secondary-300);
  box-shadow: var(--shadow-md);
}

.form-control::placeholder {
  color: var(--secondary-400);
  font-style: italic;
}

/* Select dropdowns */
select.form-control {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
  background-position: right var(--space-3) center;
  background-repeat: no-repeat;
  background-size: 16px 12px;
  padding-right: var(--space-10);
  cursor: pointer;
}

select.form-control:focus {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%230ea5e9' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
}

/* Textarea specific */
textarea.form-control {
  resize: vertical;
  min-height: 100px;
  line-height: 1.5;
}

/* Form groups */
.form-group {
  margin-bottom: var(--space-5);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: 600;
  color: var(--secondary-700);
  font-size: 0.9rem;
}

.form-group small {
  display: block;
  margin-top: var(--space-1);
  color: var(--secondary-500);
  font-size: 0.8rem;
}

/* Input groups with prefixes */
.input-group {
  display: flex;
  align-items: stretch;
}

.input-prefix {
  display: flex;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  background: var(--secondary-100);
  border: 2px solid var(--secondary-200);
  border-right: none;
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
  font-weight: 600;
  color: var(--secondary-600);
  font-size: 0.9rem;
  min-width: 60px;
  justify-content: center;
}

.input-group .form-control {
  border-left: none;
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

.input-group .form-control:focus+.input-prefix,
.input-group .input-prefix+.form-control:focus {
  border-color: var(--primary-500);
}

/* Range inputs */
.form-range {
  width: 100%;
  height: 6px;
  margin: var(--space-3) 0;
  background: var(--secondary-200);
  border-radius: var(--radius-md);
  outline: none;
  -webkit-appearance: none;
}

.form-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary-500);
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.form-range::-webkit-slider-thumb:hover {
  background: var(--primary-600);
  transform: scale(1.1);
}

.form-range::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary-500);
  cursor: pointer;
  border: none;
  box-shadow: var(--shadow-md);
}

/* Toggle switches */
.toggle {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
}

.toggle input[type="checkbox"] {
  position: relative;
  width: 44px;
  height: 24px;
  appearance: none;
  background: var(--secondary-300);
  border-radius: 12px;
  transition: all var(--transition-base);
  margin: 0;
}

.toggle input[type="checkbox"]:checked {
  background: var(--primary-500);
}

.toggle input[type="checkbox"]::before {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: white;
  border-radius: 50%;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.toggle input[type="checkbox"]:checked::before {
  transform: translateX(20px);
}

.toggle-label {
  font-weight: 500;
  color: var(--secondary-700);
}

/* ============================================================================
   DASHBOARD STATS
   ============================================================================ */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.stat-card {
  background: linear-gradient(135deg, white 0%, var(--secondary-50) 100%);
  padding: var(--space-6);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--secondary-200);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-500) 0%, var(--whatsapp-green) 100%);
}

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

.stat-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
  background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-600) 100%);
  flex-shrink: 0;
}

.stat-card:nth-child(1) .stat-icon {
  background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-600) 100%);
}

.stat-card:nth-child(2) .stat-icon {
  background: linear-gradient(135deg, var(--warning-500) 0%, var(--warning-600) 100%);
}

.stat-card:nth-child(3) .stat-icon {
  background: linear-gradient(135deg, var(--success-500) 0%, var(--success-600) 100%);
}

.stat-card:nth-child(4) .stat-icon {
  background: linear-gradient(135deg, var(--whatsapp-green) 0%, var(--whatsapp-dark) 100%);
}

.stat-info h3 {
  font-size: 2.5rem;
  color: var(--secondary-900);
  margin-bottom: var(--space-1);
  font-weight: 800;
  letter-spacing: -0.025em;
}

.stat-info p {
  color: var(--secondary-600);
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ============================================================================
   WIDGETS
   ============================================================================ */

.dashboard-widgets {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.widget {
  background: white;
  padding: var(--space-6);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--secondary-200);
}

.widget h3 {
  margin-bottom: var(--space-4);
  color: var(--secondary-900);
  font-weight: 700;
  font-size: 1.25rem;
  border-bottom: 2px solid var(--secondary-100);
  padding-bottom: var(--space-3);
}

/* ============================================================================
   SECTION HEADERS
   ============================================================================ */

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-8);
  background: white;
  padding: var(--space-6);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--secondary-200);
}

.section-header h2 {
  color: var(--secondary-900);
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.025em;
}

/* ============================================================================
   BUTTONS - Modern Design System
   ============================================================================ */

.btn {
  padding: var(--space-3) var(--space-5);
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 600;
  transition: all var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  position: relative;
  overflow: hidden;
  text-transform: none;
  letter-spacing: 0.025em;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.3) 50%, transparent 100%);
  transition: left var(--transition-slow);
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-600) 100%);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: linear-gradient(135deg, var(--secondary-500) 0%, var(--secondary-600) 100%);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
  background: linear-gradient(135deg, var(--secondary-600) 0%, var(--secondary-700) 100%);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-success {
  background: linear-gradient(135deg, var(--success-500) 0%, var(--success-600) 100%);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-success:hover {
  background: linear-gradient(135deg, var(--success-600) 0%, #15803d 100%);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-warning {
  background: linear-gradient(135deg, var(--warning-500) 0%, var(--warning-600) 100%);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-warning:hover {
  background: linear-gradient(135deg, var(--warning-600) 0%, #b45309 100%);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-danger {
  background: linear-gradient(135deg, var(--error-500) 0%, var(--error-600) 100%);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-danger:hover {
  background: linear-gradient(135deg, var(--error-600) 0%, #b91c1c 100%);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-info {
  background: linear-gradient(135deg, var(--primary-400) 0%, var(--primary-500) 100%);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-info:hover {
  background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-600) 100%);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background: transparent;
  color: var(--primary-600);
  border: 2px solid var(--primary-600);
}

.btn-outline:hover {
  background: var(--primary-600);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-sm {
  padding: var(--space-2) var(--space-3);
  font-size: 0.75rem;
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: 1rem;
  border-radius: var(--radius-xl);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

.btn:disabled:hover {
  transform: none !important;
  box-shadow: var(--shadow-md) !important;
}

/* ============================================================================
   FORMS - Enhanced Design
   ============================================================================ */

.form-group {
  margin-bottom: var(--space-5);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-2);
  color: var(--secondary-700);
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.025em;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 2px solid var(--secondary-200);
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  transition: all var(--transition-base);
  background: white;
  font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
  transform: translateY(-1px);
}

.input-group {
  display: flex;
  gap: var(--space-3);
  align-items: center;
}

.input-group input {
  flex: 1;
}

/* ============================================================================
   WHATSAPP INTERFACE - Enhanced
   ============================================================================ */

.whatsapp-container {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: var(--space-6);
  min-height: calc(100vh - 300px);
}

.instances-section {
  overflow-y: auto;
}

.instances-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.instance-actions {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-6);
  flex-wrap: wrap;
}

.logs-section {
  background: linear-gradient(135deg, var(--secondary-900) 0%, var(--secondary-800) 100%);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--secondary-700);
}

.logs-header {
  padding: var(--space-4);
  border-bottom: 1px solid var(--secondary-700);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--secondary-800);
}

.logs-header h3 {
  margin: 0;
  color: white;
  font-size: 1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.logs-container {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-3);
  background: var(--secondary-900);
  color: #e2e8f0;
  font-family: var(--font-family-mono);
  font-size: 0.75rem;
  line-height: 1.6;
  min-height: 400px;
  max-height: 600px;
}

.log-entry {
  display: flex;
  margin-bottom: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  word-break: break-all;
  transition: all var(--transition-fast);
}

.log-entry:hover {
  transform: translateX(4px);
}

.log-entry.qr {
  background: rgba(14, 165, 233, 0.1);
  border-left: 3px solid var(--primary-500);
}

.log-entry.success {
  background: rgba(34, 197, 94, 0.1);
  border-left: 3px solid var(--success-500);
}

.log-entry.error {
  background: rgba(239, 68, 68, 0.1);
  border-left: 3px solid var(--error-500);
}

.log-entry.info {
  background: rgba(14, 165, 233, 0.1);
  border-left: 3px solid var(--primary-500);
}

.log-entry.warning {
  background: rgba(245, 158, 11, 0.1);
  border-left: 3px solid var(--warning-500);
}

.log-time {
  color: var(--secondary-400);
  margin-right: var(--space-3);
  font-size: 0.7rem;
  min-width: 80px;
  flex-shrink: 0;
  font-weight: 500;
}

.log-message {
  flex: 1;
  font-weight: 400;
}

.log-attempt {
  color: var(--warning-500);
  font-weight: 700;
}

/* ============================================================================
   ENHANCED WHATSAPP CONNECTION STATUS
   ============================================================================ */

.whatsapp-container.connected {
  border-left-color: var(--success-500);
  background: linear-gradient(135deg, var(--success-50) 0%, white 100%);
}

.whatsapp-container.connecting {
  border-left-color: var(--warning-500);
  background: linear-gradient(135deg, var(--warning-50) 0%, white 100%);
}

.whatsapp-container.warning {
  border-left-color: var(--warning-600);
  background: linear-gradient(135deg, var(--warning-50) 0%, white 100%);
}

.whatsapp-container.disconnected {
  border-left-color: var(--error-500);
  background: linear-gradient(135deg, var(--error-50) 0%, white 100%);
}

#whatsapp-content {
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  margin-bottom: var(--space-6);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--secondary-200);
  transition: all var(--transition-base);
  border-left: 4px solid var(--secondary-300);
}

.instance-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--secondary-200);
}

.instance-header h3 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--secondary-900);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.status-badge {
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-lg);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.status-connected {
  background: var(--success-50);
  color: var(--success-700);
  border: 1px solid var(--success-200);
}

.status-connecting {
  background: var(--warning-50);
  color: var(--warning-700);
  border: 1px solid var(--warning-200);
}

.status-warning {
  background: var(--warning-50);
  color: var(--warning-700);
  border: 1px solid var(--warning-200);
}

.status-disconnected {
  background: var(--error-50);
  color: var(--error-700);
  border: 1px solid var(--error-200);
}

.instance-details {
  margin-bottom: var(--space-6);
}

.info-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--secondary-100);
}

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

.info-item .label {
  font-weight: 600;
  color: var(--secondary-600);
  font-size: 0.875rem;
}

.info-item .value {
  font-weight: 600;
  color: var(--secondary-900);
  font-size: 0.875rem;
  font-family: var(--font-family-mono);
}

.qr-container {
  text-align: center;
  padding: var(--space-8);
  background: linear-gradient(135deg, var(--secondary-50) 0%, white 100%);
  border-radius: var(--radius-xl);
  border: 2px dashed var(--secondary-300);
  margin: var(--space-6) 0;
  transition: all var(--transition-base);
}

.qr-container:hover {
  border-color: var(--primary-500);
  background: linear-gradient(135deg, var(--primary-50) 0%, white 100%);
}

.qr-container h4 {
  margin: 0 0 var(--space-4) 0;
  color: var(--secondary-900);
  font-size: 1.25rem;
  font-weight: 700;
}

.qr-code {
  max-width: 240px;
  width: 100%;
  height: auto;
  border-radius: var(--radius-xl);
  margin: 0 auto var(--space-4) auto;
  display: block;
  box-shadow: var(--shadow-xl);
  border: 4px solid white;
}

.qr-container p {
  margin: var(--space-2) 0;
  font-weight: 600;
  color: var(--secondary-700);
  font-size: 0.875rem;
}

.qr-container small {
  display: block;
  color: var(--secondary-500);
  font-size: 0.75rem;
  margin-top: var(--space-3);
  font-family: var(--font-family-mono);
}

.loading-indicator {
  text-align: center;
  padding: var(--space-8);
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--secondary-200);
  border-top: 4px solid var(--primary-500);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto var(--space-4) auto;
}

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

  100% {
    transform: rotate(360deg);
  }
}

.loading-indicator p {
  color: var(--secondary-600);
  font-weight: 600;
  margin: 0;
  font-size: 0.875rem;
}

.connected-actions,
.qr-actions,
.disconnected-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  justify-content: center;
}

.connected-actions .btn,
.qr-actions .btn,
.disconnected-actions .btn {
  flex: 1;
  min-width: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.disconnected-state {
  text-align: center;
  padding: var(--space-16) var(--space-8);
  color: var(--secondary-600);
}

.disconnected-state .icon {
  font-size: 4rem;
  margin-bottom: var(--space-6);
  opacity: 0.7;
}

.disconnected-state h3 {
  margin: 0 0 var(--space-3) 0;
  color: var(--secondary-900);
  font-size: 1.5rem;
  font-weight: 700;
}

.disconnected-state p {
  margin: 0 0 var(--space-6) 0;
  color: var(--secondary-500);
  font-size: 1rem;
}

/* ============================================================================
   ALERT NOTIFICATIONS - Enhanced
   ============================================================================ */

.alert {
  padding: var(--space-4) var(--space-5);
  margin-bottom: var(--space-4);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 0.875rem;
  line-height: 1.6;
  position: relative;
  box-shadow: var(--shadow-md);
  border-left: 4px solid;
  animation: slideInDown 0.3s ease-out;
}

@keyframes slideInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.alert-danger {
  background: linear-gradient(135deg, var(--error-50) 0%, #fef2f2 100%);
  border-left-color: var(--error-500);
  color: var(--error-800);
}

.alert-warning {
  background: linear-gradient(135deg, var(--warning-50) 0%, #fffbeb 100%);
  border-left-color: var(--warning-500);
  color: var(--warning-800);
}

.alert-success {
  background: linear-gradient(135deg, var(--success-50) 0%, #f0fdf4 100%);
  border-left-color: var(--success-500);
  color: var(--success-800);
}

.alert-info {
  background: linear-gradient(135deg, var(--primary-50) 0%, #f0f9ff 100%);
  border-left-color: var(--primary-500);
  color: var(--primary-800);
}

.alert i {
  font-size: 1.2rem;
  flex-shrink: 0;
}

.alert span {
  flex: 1;
  font-weight: 500;
}

.alert-close {
  background: none;
  border: none;
  color: inherit;
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--space-1);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  flex-shrink: 0;
  opacity: 0.7;
}

.alert-close:hover {
  background: rgba(0, 0, 0, 0.1);
  opacity: 1;
  transform: scale(1.1);
}

/* ============================================================================
   MODALS - Enhanced Design
   ============================================================================ */

.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  z-index: 10000;
  backdrop-filter: blur(4px);
  animation: fadeIn 0.3s ease-out;
}

.modal.show {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background: white;
  border-radius: var(--radius-xl);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--secondary-200);
  animation: scaleIn 0.3s ease-out;
}

@keyframes scaleIn {
  from {
    transform: scale(0.9);
    opacity: 0;
  }

  to {
    transform: scale(1);
    opacity: 1;
  }
}

.modal-header {
  padding: var(--space-6);
  border-bottom: 1px solid var(--secondary-200);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: linear-gradient(135deg, var(--primary-50) 0%, white 100%);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.modal-header h3 {
  margin: 0;
  color: var(--secondary-900);
  font-size: 1.25rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.modal-body {
  padding: var(--space-6);
}

.modal-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--secondary-200);
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
  background: var(--secondary-50);
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
}

.close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--secondary-500);
  transition: all var(--transition-fast);
  padding: var(--space-2);
  border-radius: var(--radius-md);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.close:hover {
  color: var(--secondary-700);
  background: var(--secondary-100);
  transform: scale(1.1);
}

/* Enhanced Booking Details Modal */
.booking-details-modal {
  max-width: 800px;
  width: 95%;
}

.booking-details-grid {
  display: grid;
  gap: var(--space-6);
}

.detail-section {
  background: var(--secondary-50);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--primary-500);
}

.detail-section h4 {
  margin: 0 0 var(--space-4) 0;
  color: var(--secondary-900);
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.detail-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--secondary-200);
}

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

.detail-item .label {
  font-weight: 600;
  color: var(--secondary-600);
  min-width: 120px;
}

.detail-item .value {
  color: var(--secondary-900);
  text-align: right;
  flex: 1;
  font-weight: 500;
}

.special-requests {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.special-request-item {
  background: var(--primary-500);
  color: white;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-lg);
  font-size: 0.75rem;
  font-weight: 500;
}

/* ============================================================================
   BOOKING ITEM STYLES
   ============================================================================ */

.booking-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--secondary-200);
  transition: all var(--transition-base);
  cursor: pointer;
}

.booking-item:hover {
  background: var(--secondary-50);
  border-radius: var(--radius-md);
  margin: 0 calc(-1 * var(--space-2));
  padding: var(--space-4) var(--space-2);
}

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

.booking-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.booking-info strong {
  color: var(--secondary-900);
  font-weight: 600;
}

.booking-route {
  color: var(--secondary-600);
  font-size: 0.875rem;
}

.booking-time {
  color: var(--secondary-500);
  font-size: 0.75rem;
  font-family: var(--font-family-mono);
}

.booking-status {
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-lg);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.status-confirmed {
  background: var(--success-50);
  color: var(--success-700);
  border: 1px solid var(--success-200);
}

.status-pending {
  background: var(--warning-50);
  color: var(--warning-700);
  border: 1px solid var(--warning-200);
}

.status-completed {
  background: var(--primary-50);
  color: var(--primary-700);
  border: 1px solid var(--primary-200);
}

.status-paid {
  background: var(--success-50);
  color: var(--success-700);
  border: 1px solid var(--success-200);
}

.status-cancelled {
  background: var(--error-50);
  color: var(--error-700);
  border: 1px solid var(--error-200);
}

.status-in_progress {
  background: var(--warning-50);
  color: var(--warning-700);
  border: 1px solid var(--warning-200);
}

/* ============================================================================
   EMPTY STATES
   ============================================================================ */

.empty-state {
  text-align: center;
  padding: var(--space-16);
  color: var(--secondary-500);
}

.empty-state i {
  font-size: 4rem;
  margin-bottom: var(--space-4);
  opacity: 0.7;
}

.empty-state h3 {
  margin: 0 0 var(--space-2) 0;
  color: var(--secondary-700);
  font-size: 1.25rem;
  font-weight: 600;
}

.empty-state p {
  margin: 0;
  color: var(--secondary-500);
  font-size: 0.875rem;
}

/* ============================================================================
   TABLE STYLES - Enhanced
   ============================================================================ */

.table-container {
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  border: 1px solid var(--secondary-200);
}

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

.bookings-table th,
.bookings-table td {
  padding: var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--secondary-200);
}

.bookings-table th {
  background: linear-gradient(135deg, var(--secondary-50) 0%, var(--secondary-100) 100%);
  font-weight: 700;
  color: var(--secondary-900);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.bookings-table tr:hover {
  background: linear-gradient(135deg, var(--primary-50) 0%, var(--secondary-50) 100%);
}

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

/* ============================================================================
   WHITELIST MANAGEMENT - Enhanced
   ============================================================================ */

.whitelist-controls {
  margin-bottom: var(--space-6);
}

.whitelist-actions {
  margin-top: var(--space-4);
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.whitelist-container {
  background: var(--secondary-50);
  border-radius: var(--radius-xl);
  border: 1px solid var(--secondary-200);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.whitelist-header {
  background: white;
  padding: var(--space-4);
  border-bottom: 1px solid var(--secondary-200);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.count-badge {
  background: var(--primary-500);
  color: white;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-lg);
  font-size: 0.75rem;
  font-weight: 700;
}

.status-indicator {
  font-size: 0.75rem;
  color: var(--secondary-600);
  font-family: var(--font-family-mono);
}

.whitelist-list {
  max-height: 400px;
  overflow-y: auto;
  background: white;
}

.whitelist-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--secondary-100);
  transition: all var(--transition-base);
}

.whitelist-item:hover {
  background: var(--secondary-50);
}

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

.whitelist-number {
  font-family: var(--font-family-mono);
  font-weight: 600;
  color: var(--secondary-900);
  font-size: 0.875rem;
}

.whitelist-remove {
  background: linear-gradient(135deg, var(--error-500) 0%, var(--error-600) 100%);
  color: white;
  border: none;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  cursor: pointer;
  transition: all var(--transition-base);
  font-weight: 600;
}

.whitelist-remove:hover {
  background: linear-gradient(135deg, var(--error-600) 0%, #b91c1c 100%);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.setting-description {
  color: var(--secondary-600);
  font-size: 0.875rem;
  margin-bottom: var(--space-4);
  line-height: 1.5;
}

/* ============================================================================
   SETTINGS SECTIONS
   ============================================================================ */

.settings-container {
  display: grid;
  gap: var(--space-6);
}

.settings-section {
  background: white;
  padding: var(--space-6);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--secondary-200);
}

.settings-section h3 {
  margin-bottom: var(--space-4);
  color: var(--secondary-900);
  font-weight: 700;
  font-size: 1.25rem;
  border-bottom: 2px solid var(--secondary-100);
  padding-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* ============================================================================
   RESPONSIVE MODAL DESIGN
   ============================================================================ */

@media (max-width: 768px) {
  .modal-content {
    width: 95%;
    margin: var(--space-4);
  }

  .booking-details-modal {
    width: 98%;
    margin: var(--space-2);
  }

  .detail-item {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-1);
  }

  .detail-item .value {
    text-align: left;
  }

  .modal-footer {
    flex-direction: column;
  }

  .modal-footer .btn {
    width: 100%;
  }

  .whitelist-item {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }

  .whitelist-remove {
    align-self: flex-end;
  }
}

/* ============================================================================
   RESPONSIVE DESIGN
   ============================================================================ */

@media (max-width: 1024px) {
  .main-content {
    padding: var(--space-4);
  }

  .whatsapp-container {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .logs-section {
    height: 300px;
  }

  .stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-4);
  }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform var(--transition-base);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .main-content {
    margin-left: 0;
    padding: var(--space-4);
  }

  .header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-4);
  }

  .header h1 {
    font-size: 1.5rem;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-4);
  }

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

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

  .connected-actions,
  .qr-actions,
  .disconnected-actions {
    flex-direction: column;
  }

  .qr-code {
    max-width: 200px;
  }

  .input-group {
    flex-direction: column;
    align-items: stretch;
  }
}

/* ============================================================================
   CUSTOM SCROLLBAR
   ============================================================================ */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--secondary-100);
  border-radius: var(--radius-md);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, var(--primary-400) 0%, var(--primary-500) 100%);
  border-radius: var(--radius-md);
  transition: background var(--transition-base);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-600) 100%);
}

/* ============================================================================
   LOADING STATES
   ============================================================================ */

.skeleton {
  background: linear-gradient(90deg, var(--secondary-200) 25%, var(--secondary-100) 50%, var(--secondary-200) 75%);
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
  border-radius: var(--radius-md);
}

@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }

  100% {
    background-position: 200% 0;
  }
}

.loading-placeholder {
  padding: var(--space-8);
  text-align: center;
  color: var(--secondary-500);
  font-style: italic;
  background: var(--secondary-50);
  border-radius: var(--radius-lg);
  border: 2px dashed var(--secondary-200);
}

/* ============================================================================
   TOAST NOTIFICATIONS (New Addition)
   ============================================================================ */

.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 10000;
  pointer-events: none;
}

.toast {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--secondary-200);
  padding: var(--space-4) var(--space-5);
  margin-bottom: var(--space-3);
  min-width: 300px;
  max-width: 400px;
  transform: translateX(100%);
  opacity: 0;
  animation: slideInToast 0.3s ease-out forwards;
  pointer-events: auto;
  border-left: 4px solid;
}

.toast.success {
  border-left-color: var(--success-500);
}

.toast.error {
  border-left-color: var(--error-500);
}

.toast.warning {
  border-left-color: var(--warning-500);
}

.toast.info {
  border-left-color: var(--primary-500);
}

@keyframes slideInToast {
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.toast-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-2);
}

.toast-title {
  font-weight: 700;
  color: var(--secondary-900);
  font-size: 0.875rem;
}

.toast-close {
  background: none;
  border: none;
  color: var(--secondary-500);
  cursor: pointer;
  padding: var(--space-1);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.toast-close:hover {
  background: var(--secondary-100);
  color: var(--secondary-700);
}

.toast-message {
  color: var(--secondary-700);
  font-size: 0.875rem;
  line-height: 1.5;
}

/* ============================================================================
   FLOW EDITOR STYLES
   ============================================================================ */

.flows-container {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: var(--space-6);
  height: calc(100vh - 200px);
  margin-top: var(--space-4);
}

.flows-sidebar {
  background: var(--secondary-50);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  overflow-y: auto;
  border: 1px solid var(--secondary-200);
}

.flows-sidebar h3 {
  margin: 0 0 var(--space-4) 0;
  color: var(--secondary-700);
  font-size: 1rem;
  font-weight: 600;
}

.flows-list {
  margin-bottom: var(--space-6);
}

.flow-item {
  background: white;
  border: 1px solid var(--secondary-200);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  margin-bottom: var(--space-2);
  cursor: pointer;
  transition: all var(--transition-base);
}

.flow-item:hover {
  border-color: var(--primary-300);
  background: var(--primary-50);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.flow-item h4 {
  margin: 0 0 var(--space-1) 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--secondary-900);
}

.flow-item p {
  margin: 0;
  font-size: 0.75rem;
  color: var(--secondary-600);
}

.flow-templates {
  border-top: 1px solid var(--secondary-200);
  padding-top: var(--space-4);
}

.flow-templates h4 {
  margin: 0 0 var(--space-3) 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--secondary-700);
}

.flow-templates .btn {
  width: 100%;
  margin-bottom: var(--space-2);
  justify-content: flex-start;
}

.flow-editor-main {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  overflow-y: auto;
  border: 1px solid var(--secondary-200);
}

.flow-editor-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 2px solid var(--secondary-100);
}

.flow-editor-header h3 {
  margin: 0;
  color: var(--secondary-900);
  font-weight: 600;
}

.flow-actions {
  display: flex;
  gap: var(--space-2);
}

.flow-editor-form {
  max-width: 100%;
}

.flow-basic-info {
  background: var(--secondary-50);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  margin-bottom: var(--space-6);
  border: 1px solid var(--secondary-200);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-4);
  align-items: end;
}

.form-checkbox {
  width: auto;
  margin-left: var(--space-2);
}

.flow-steps-section {
  margin-top: var(--space-6);
}

.flow-steps-section .section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--secondary-200);
}

.flow-steps-section h4 {
  margin: 0;
  color: var(--secondary-800);
  font-weight: 600;
}

.flow-steps-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.flow-step-card {
  background: white;
  border: 2px solid var(--secondary-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}

.flow-step-card:hover {
  border-color: var(--primary-300);
  box-shadow: var(--shadow-md);
}

.step-header {
  background: var(--secondary-100);
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  border-bottom: 1px solid var(--secondary-200);
}

.step-number {
  background: var(--primary-500);
  color: white;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.step-id-input {
  flex: 1;
  padding: var(--space-1) var(--space-2);
  border: 1px solid var(--secondary-300);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-family: var(--font-family-mono);
}

.step-type-select {
  padding: var(--space-1) var(--space-2);
  border: 1px solid var(--secondary-300);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  background: white;
}

.step-content {
  padding: var(--space-4);
}

.content-editor {
  border: 1px solid var(--secondary-300);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.editor-toolbar {
  background: var(--secondary-50);
  padding: var(--space-2);
  display: flex;
  gap: var(--space-1);
  border-bottom: 1px solid var(--secondary-200);
}

.emoji-btn {
  background: none;
  border: 1px solid var(--secondary-300);
  border-radius: var(--radius-sm);
  padding: var(--space-1);
  cursor: pointer;
  font-size: 0.875rem;
  transition: all var(--transition-base);
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.emoji-btn:hover {
  background: var(--primary-100);
  border-color: var(--primary-300);
}

.content-editor textarea {
  border: none;
  border-radius: 0;
  resize: vertical;
  min-height: 80px;
}

.content-editor textarea:focus {
  outline: none;
  box-shadow: none;
}

.conditions-section {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--secondary-200);
}

.conditions-section label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: 600;
  color: var(--secondary-700);
}

.conditions-container {
  margin-bottom: var(--space-3);
}

.condition-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
  padding: var(--space-2);
  background: var(--secondary-50);
  border-radius: var(--radius-md);
  border: 1px solid var(--secondary-200);
}

.condition-item span {
  color: var(--secondary-600);
  font-weight: 600;
}

.text-muted {
  color: var(--secondary-500);
  font-style: italic;
  text-align: center;
  padding: var(--space-4);
}

.flow-welcome {
  text-align: center;
  padding: var(--space-8);
  color: var(--secondary-600);
}

.welcome-icon {
  margin-bottom: var(--space-4);
}

.welcome-icon i {
  font-size: 4rem;
  color: var(--primary-400);
}

.flow-welcome h4 {
  margin: 0 0 var(--space-2) 0;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--secondary-900);
}

.flow-welcome p {
  margin: 0 0 var(--space-6) 0;
  font-size: 1rem;
  color: var(--secondary-600);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin: var(--space-6) 0;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--secondary-50);
  border-radius: var(--radius-md);
  border: 1px solid var(--secondary-200);
}

.feature-item i {
  color: var(--primary-500);
  font-size: 1.25rem;
}

.feature-item span {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--secondary-700);
}

/* Responsive Flow Editor */
@media (max-width: 768px) {
  .flows-container {
    grid-template-columns: 1fr;
    height: auto;
  }

  .flows-sidebar {
    order: 2;
    margin-top: var(--space-4);
  }

  .flow-editor-main {
    order: 1;
  }

  .flow-editor-header {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-3);
  }

  .flow-actions {
    justify-content: center;
  }

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

  .condition-item {
    flex-direction: column;
    align-items: stretch;
  }

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

/* ============================================================================
   PRODUCTION OPTIMIZATIONS
   ============================================================================ */

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {

  *,
  ::before,
  ::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.2);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.2);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.2);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.2);
  }
}

/* ============================================================================
   PAYMENT GATEWAY STYLES
   ============================================================================ */

.payment-gateways {
  display: grid;
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.gateway-card {
  background: white;
  border: 2px solid var(--secondary-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}

.gateway-card:hover {
  border-color: var(--primary-300);
  box-shadow: var(--shadow-md);
}

.gateway-header {
  background: linear-gradient(135deg, var(--secondary-50) 0%, var(--secondary-100) 100%);
  padding: var(--space-4) var(--space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--secondary-200);
}

.gateway-header h3 {
  margin: 0;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--secondary-900);
}

.gateway-header h3 i {
  font-size: 1.5rem;
}

.gateway-header h3 i.fab.fa-stripe {
  color: #6772e5;
}

.gateway-header h3 i.fab.fa-paypal {
  color: #0070ba;
}

.gateway-header h3 i.fas.fa-credit-card {
  color: #528ff0;
}

.gateway-toggles {
  display: flex;
  gap: var(--space-4);
  align-items: center;
}

.toggle {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  user-select: none;
}

.toggle input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin: 0;
  accent-color: var(--primary-500);
}

.toggle-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--secondary-700);
}

.gateway-config {
  padding: var(--space-6);
}

.gateway-config .form-group {
  margin-bottom: var(--space-4);
}

.gateway-config .form-group:last-of-type {
  margin-bottom: var(--space-4);
}

.gateway-config label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: 600;
  color: var(--secondary-700);
  font-size: 0.875rem;
}

.gateway-config .form-control {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 2px solid var(--secondary-200);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  transition: all var(--transition-base);
  background: var(--secondary-50);
}

.gateway-config .form-control:focus {
  outline: none;
  border-color: var(--primary-400);
  background: white;
  box-shadow: 0 0 0 3px var(--primary-100);
}

.gateway-config .form-control[type="password"] {
  font-family: monospace;
  letter-spacing: 0.1em;
}

.gateway-status {
  margin-top: var(--space-4);
  padding: var(--space-3) var(--space-4);
  background: var(--secondary-50);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--secondary-300);
}

.status-indicator {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--secondary-600);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.status-indicator::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--secondary-400);
}

.status-indicator.configured {
  color: var(--success-700);
}

.status-indicator.configured::before {
  background: var(--success-500);
}

.status-indicator.error {
  color: var(--error-700);
}

.status-indicator.error::before {
  background: var(--error-500);
}

.payment-settings {
  background: white;
  border: 2px solid var(--secondary-200);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-top: var(--space-6);
}

.payment-settings h3 {
  margin: 0 0 var(--space-4) 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--secondary-900);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.payment-settings h3::before {
  content: '⚙️';
  font-size: 1.25rem;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-4);
}

.settings-grid .form-group {
  margin-bottom: 0;
}

.settings-grid label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: 600;
  color: var(--secondary-700);
  font-size: 0.875rem;
}

.settings-grid .form-control {
  width: 100%;
  padding: var(--space-3);
  border: 2px solid var(--secondary-200);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  transition: all var(--transition-base);
}

.settings-grid .form-control:focus {
  outline: none;
  border-color: var(--primary-400);
  box-shadow: 0 0 0 3px var(--primary-100);
}

.settings-grid .toggle {
  margin-top: var(--space-2);
}

/* Payment Actions */
.payment-actions {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--secondary-200);
}

.payment-actions .btn {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  font-weight: 600;
}

/* Gateway Status Badges */
.gateway-card[data-enabled="true"] {
  border-color: var(--success-300);
  background: linear-gradient(135deg, var(--success-50) 0%, white 100%);
}

.gateway-card[data-enabled="true"] .gateway-header {
  background: linear-gradient(135deg, var(--success-100) 0%, var(--success-200) 100%);
}

.gateway-card[data-default="true"] {
  border-color: var(--primary-400);
  box-shadow: 0 0 0 3px var(--primary-100);
}

.gateway-card[data-default="true"] .gateway-header::after {
  content: 'DEFAULT';
  background: var(--primary-500);
  color: white;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

/* Responsive Payment UI */
@media (max-width: 768px) {
  .gateway-header {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-3);
  }

  .gateway-toggles {
    justify-content: space-between;
  }

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

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

/* Animation for gateway cards */
@keyframes gatewayActivate {
  0% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.02);
  }

  100% {
    transform: scale(1);
  }
}

.gateway-card.activating {
  animation: gatewayActivate 0.3s ease-in-out;
}

/* ============================================================================
   ENHANCED WHATSAPP MANAGEMENT STYLES
   ============================================================================ */

.whatsapp-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-top: var(--space-4);
}

.instances-section {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  border: 2px solid var(--secondary-200);
  transition: all var(--transition-base);
}

.instances-section:hover {
  border-color: var(--primary-300);
  box-shadow: var(--shadow-md);
}

/* Main Instance Status */
.whatsapp-container.connected {
  background: linear-gradient(135deg, var(--success-50) 0%, white 100%);
  border-color: var(--success-300);
}

.whatsapp-container.connecting {
  background: linear-gradient(135deg, var(--warning-50) 0%, white 100%);
  border-color: var(--warning-300);
}

.whatsapp-container.disconnected {
  background: linear-gradient(135deg, var(--error-50) 0%, white 100%);
  border-color: var(--error-300);
}

.whatsapp-container.initializing {
  background: linear-gradient(135deg, var(--primary-50) 0%, white 100%);
  border-color: var(--primary-300);
}

.instance-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--secondary-100);
}

.instance-header h3 {
  margin: 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--secondary-900);
}

.status-badge {
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-lg);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.status-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.status-badge.status-connected {
  background: var(--success-100);
  color: var(--success-800);
  border: 1px solid var(--success-300);
}

.status-badge.status-connected::before {
  background: var(--success-500);
}

.status-badge.status-connecting {
  background: var(--warning-100);
  color: var(--warning-800);
  border: 1px solid var(--warning-300);
}

.status-badge.status-connecting::before {
  background: var(--warning-500);
}

.status-badge.status-disconnected {
  background: var(--error-100);
  color: var(--error-800);
  border: 1px solid var(--error-300);
}

.status-badge.status-disconnected::before {
  background: var(--error-500);
  animation: none;
}

.status-badge.status-initializing {
  background: var(--primary-100);
  color: var(--primary-800);
  border: 1px solid var(--primary-300);
}

.status-badge.status-initializing::before {
  background: var(--primary-500);
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.5;
  }
}

.instance-details {
  margin-bottom: var(--space-4);
}

.info-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--secondary-100);
}

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

.info-item .label {
  font-weight: 600;
  color: var(--secondary-700);
  font-size: 0.875rem;
}

.info-item .value {
  color: var(--secondary-900);
  font-weight: 500;
  font-family: var(--font-family-mono);
  font-size: 0.875rem;
}

/* QR Code Display */
.qr-container {
  text-align: center;
  padding: var(--space-4);
  background: var(--secondary-50);
  border-radius: var(--radius-lg);
  border: 2px dashed var(--secondary-300);
  margin: var(--space-4) 0;
}

.qr-container h4 {
  margin: 0 0 var(--space-3) 0;
  color: var(--secondary-800);
  font-weight: 600;
}

.qr-code {
  max-width: 250px;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  margin: var(--space-3) 0;
  background: white;
  padding: var(--space-2);
}

.qr-container p {
  margin: var(--space-2) 0;
  font-weight: 600;
  color: var(--primary-600);
}

.qr-container small {
  color: var(--secondary-600);
  font-size: 0.75rem;
}

/* Instance Actions */
.instance-actions {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--secondary-200);
}

.instance-actions .btn {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.connected-actions {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.connected-actions .btn {
  padding: var(--space-3) var(--space-4);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.disconnected-actions {
  display: flex;
  justify-content: center;
  margin-top: var(--space-4);
}

.disconnected-state {
  text-align: center;
  padding: var(--space-6);
  color: var(--secondary-600);
}

.disconnected-state .icon {
  font-size: 3rem;
  margin-bottom: var(--space-3);
  display: block;
}

.disconnected-state h3 {
  margin: 0 0 var(--space-2) 0;
  color: var(--secondary-800);
  font-weight: 600;
}

.disconnected-state p {
  margin: 0 0 var(--space-4) 0;
  color: var(--secondary-600);
}

/* Instance Grid */
.instances-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.instance-card {
  background: white;
  border: 1px solid var(--secondary-200);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  transition: all var(--transition-base);
}

.instance-card:hover {
  border-color: var(--primary-300);
  box-shadow: var(--shadow-md);
}

.instance-card h4 {
  margin: 0 0 var(--space-2) 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--secondary-900);
}

.instance-card .instance-status {
  font-size: 0.875rem;
  color: var(--secondary-600);
  margin-bottom: var(--space-3);
}

/* Loading Indicators */
.loading-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  color: var(--secondary-600);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--secondary-200);
  border-top: 4px solid var(--primary-500);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: var(--space-3);
}

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

  100% {
    transform: rotate(360deg);
  }
}

/* Logs Section */
.logs-section {
  background: var(--secondary-900);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  margin-top: var(--space-4);
  color: var(--secondary-100);
  font-family: var(--font-family-mono);
  font-size: 0.875rem;
  line-height: 1.4;
  max-height: 300px;
  overflow-y: auto;
}

.logs-section h4 {
  margin: 0 0 var(--space-3) 0;
  color: var(--secondary-100);
  font-size: 1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.log-entry {
  margin-bottom: var(--space-1);
  padding: var(--space-1) 0;
  border-bottom: 1px solid var(--secondary-800);
}

.log-entry:last-child {
  border-bottom: none;
}

.log-entry.log-success {
  color: var(--success-300);
}

.log-entry.log-warning {
  color: var(--warning-300);
}

.log-entry.log-error {
  color: var(--error-300);
}

.log-entry.log-qr {
  color: var(--primary-300);
}

/* Modal Styles for WhatsApp */
.modal .modal-content {
  max-width: 500px;
}

.modal .form-group {
  margin-bottom: var(--space-4);
}

.modal .form-group label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: 600;
  color: var(--secondary-700);
}

.modal .form-group input {
  width: 100%;
  padding: var(--space-3);
  border: 2px solid var(--secondary-200);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  transition: all var(--transition-base);
}

.modal .form-group input:focus {
  outline: none;
  border-color: var(--primary-400);
  box-shadow: 0 0 0 3px var(--primary-100);
}

.modal .form-group small {
  display: block;
  margin-top: var(--space-1);
  color: var(--secondary-600);
  font-size: 0.75rem;
}

/* Responsive WhatsApp UI */
@media (max-width: 768px) {
  .instance-header {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-3);
  }

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

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

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

  .qr-code {
    max-width: 200px;
  }

  .logs-section {
    max-height: 200px;
  }
}

/* ============================================================================
   SUB-TABS STYLES
   ============================================================================ */

.sub-tabs {
  margin-top: var(--space-4);
}

.sub-tab-nav {
  display: flex;
  background: var(--secondary-100);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  padding: var(--space-2);
  gap: var(--space-1);
  border-bottom: 2px solid var(--secondary-200);
  overflow-x: auto;
}

.sub-tab-btn {
  background: transparent;
  border: none;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--secondary-600);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.sub-tab-btn:hover {
  background: var(--secondary-200);
  color: var(--secondary-800);
}

.sub-tab-btn.active {
  background: var(--primary-500);
  color: white;
  box-shadow: var(--shadow-sm);
}

.sub-tab-btn i {
  font-size: 0.875rem;
}

.sub-tab-content {
  display: none;
  background: white;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  border: 2px solid var(--secondary-200);
  border-top: none;
  padding: var(--space-6);
  min-height: 400px;
}

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

/* ============================================================================
   IMPROVED BOOKING FILTERS
   ============================================================================ */

.booking-filters-container {
  margin: var(--space-4) 0 var(--space-6) 0;
}

.filter-card {
  background: white;
  border: 2px solid var(--secondary-200);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.filter-card h4 {
  margin: 0 0 var(--space-4) 0;
  color: var(--secondary-800);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.filter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
  align-items: end;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.filter-group label {
  font-weight: 600;
  color: var(--secondary-700);
  font-size: 0.875rem;
}

.filter-actions {
  display: flex;
  gap: var(--space-2);
}

.filter-actions .btn {
  flex: 1;
  min-width: 120px;
}

/* ============================================================================
   PROMPT SECTIONS ENHANCED
   ============================================================================ */

.prompt-section {
  max-width: 100%;
}

.prompt-section h4 {
  margin: 0 0 var(--space-3) 0;
  color: var(--secondary-800);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.prompt-description {
  color: var(--secondary-600);
  margin-bottom: var(--space-4);
  font-size: 0.875rem;
  line-height: 1.5;
}

.prompt-examples {
  margin-top: var(--space-4);
  padding: var(--space-4);
  background: var(--secondary-50);
  border-radius: var(--radius-md);
  border: 1px solid var(--secondary-200);
}

.prompt-examples h5 {
  margin: 0 0 var(--space-3) 0;
  color: var(--secondary-700);
  font-size: 0.875rem;
  font-weight: 600;
}

.prompt-examples pre {
  background: var(--secondary-900);
  color: var(--secondary-100);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  font-family: var(--font-family-mono);
  font-size: 0.75rem;
  line-height: 1.4;
  overflow-x: auto;
  margin: 0;
}

.response-settings,
.voice-settings {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--secondary-200);
}

.response-settings h5,
.voice-settings h5 {
  margin: 0 0 var(--space-3) 0;
  color: var(--secondary-700);
  font-size: 0.875rem;
  font-weight: 600;
}

.form-range {
  width: 100%;
  margin: var(--space-2) 0;
}

.form-range::-webkit-slider-thumb {
  appearance: none;
  height: 20px;
  width: 20px;
  border-radius: 50%;
  background: var(--primary-500);
  cursor: pointer;
  border: 2px solid white;
  box-shadow: 0 0 0 2px var(--primary-200);
}

.form-range::-moz-range-thumb {
  height: 20px;
  width: 20px;
  border-radius: 50%;
  background: var(--primary-500);
  cursor: pointer;
  border: 2px solid white;
  box-shadow: 0 0 0 2px var(--primary-200);
}

/* ============================================================================
   TRANSACTIONS TABLE
   ============================================================================ */

.transactions-section {
  max-width: 100%;
}

.transaction-filters {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
  padding: var(--space-4);
  background: var(--secondary-50);
  border-radius: var(--radius-md);
  border: 1px solid var(--secondary-200);
}

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

.transactions-table .table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.transactions-table th {
  background: var(--secondary-100);
  padding: var(--space-3);
  font-weight: 600;
  color: var(--secondary-800);
  border-bottom: 2px solid var(--secondary-200);
}

.transactions-table td {
  padding: var(--space-3);
  border-bottom: 1px solid var(--secondary-200);
}

.text-center {
  text-align: center;
  color: var(--secondary-500);
  font-style: italic;
}

/* ============================================================================
   LOGS SECTION ENHANCED
   ============================================================================ */

.logs-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--secondary-700);
}

.logs-container {
  background: var(--secondary-900);
  color: var(--secondary-100);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  font-family: var(--font-family-mono);
  font-size: 0.875rem;
  line-height: 1.4;
  max-height: 400px;
  overflow-y: auto;
}

/* ============================================================================
   RESPONSIVE SUB-TABS
   ============================================================================ */

@media (max-width: 768px) {
  .sub-tab-nav {
    flex-wrap: wrap;
  }

  .sub-tab-btn {
    flex: 1;
    min-width: calc(50% - var(--space-1));
  }

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

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

  .transaction-filters {
    flex-direction: column;
  }

  .sub-tab-content {
    padding: var(--space-4);
  }
}

@media (max-width: 480px) {
  .sub-tab-btn {
    min-width: 100%;
    margin-bottom: var(--space-1);
  }
}

/* ============================================================================
   EMPTY STATES AND HEALTH INDICATORS
   ============================================================================ */

.empty-state {
  text-align: center;
  padding: var(--space-8) var(--space-4);
  color: var(--secondary-600);
}

.empty-state i {
  display: block;
  margin-bottom: var(--space-4);
}

.empty-state h4 {
  margin: 0 0 var(--space-2) 0;
  color: var(--secondary-800);
  font-weight: 600;
}

.empty-state p {
  margin: 0 0 var(--space-4) 0;
  color: var(--secondary-600);
}

.health-indicator {
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.health-indicator.healthy {
  background: var(--success-100);
  color: var(--success-800);
  border: 1px solid var(--success-300);
}

.health-indicator.unhealthy {
  background: var(--error-100);
  color: var(--error-800);
  border: 1px solid var(--error-300);
}

/* ============================================================================
   PRICING CONFIGURATION STYLES
   ============================================================================ */

.rate-cards-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-4);
}

.rate-card {
  background: white;
  border: 2px solid var(--secondary-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}

.rate-card:hover {
  border-color: var(--primary-300);
  box-shadow: var(--shadow-md);
}

.rate-card-header {
  background: linear-gradient(135deg, var(--primary-50) 0%, var(--primary-100) 100%);
  padding: var(--space-4);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--secondary-200);
}

.rate-card-header h4 {
  margin: 0;
  color: var(--primary-700);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.rate-card-body {
  padding: var(--space-4);
}

.rate-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--secondary-100);
}

.rate-row:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.rate-row label {
  font-weight: 600;
  color: var(--secondary-700);
  font-size: 0.875rem;
  flex: 1;
}

.input-group {
  display: flex;
  align-items: center;
  width: 50%;
}

.input-prefix {
  background: var(--secondary-100);
  border: 2px solid var(--secondary-200);
  border-right: none;
  padding: var(--space-2) var(--space-3);
  font-weight: 600;
  color: var(--secondary-700);
  font-size: 0.875rem;
  border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.input-group .form-control {
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  border-left: none;
  width: 180px;
}

.rules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-4);
}

.rule-section {
  background: var(--secondary-50);
  border: 1px solid var(--secondary-200);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}

.rule-section h4 {
  margin: 0 0 var(--space-4) 0;
  color: var(--secondary-800);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--secondary-200);
}

.surcharge-grid,
.discount-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-4);
}

.surcharge-card,
.discount-card {
  background: white;
  border: 2px solid var(--secondary-200);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  transition: all var(--transition-base);
}

.surcharge-card:hover,
.discount-card:hover {
  border-color: var(--warning-300);
  box-shadow: var(--shadow-md);
}

.surcharge-card h4,
.discount-card h4 {
  margin: 0 0 var(--space-4) 0;
  color: var(--secondary-800);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--secondary-200);
}

.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.checkbox-group label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: normal;
  color: var(--secondary-700);
}

.checkbox-group input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--primary-500);
}

/* Rate card status indicators */
.rate-card[data-enabled="true"] {
  border-color: var(--success-300);
}

.rate-card[data-enabled="true"] .rate-card-header {
  background: linear-gradient(135deg, var(--success-50) 0%, var(--success-100) 100%);
}

.rate-card[data-enabled="true"] .rate-card-header h4 {
  color: var(--success-700);
}

/* Surcharge/Discount card status */
.surcharge-card[data-enabled="true"],
.discount-card[data-enabled="true"] {
  border-color: var(--success-300);
  background: linear-gradient(135deg, var(--success-50) 0%, white 100%);
}

/* Pricing calculator preview */
.pricing-calculator {
  background: var(--secondary-50);
  border: 2px solid var(--secondary-200);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-top: var(--space-6);
}

.pricing-calculator h3 {
  margin: 0 0 var(--space-4) 0;
  color: var(--secondary-800);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.calculator-inputs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.calculator-result {
  background: var(--primary-50);
  border: 2px solid var(--primary-200);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  text-align: center;
}

.calculator-result .total-amount {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-700);
  margin-bottom: var(--space-2);
}

.calculator-result .breakdown {
  font-size: 0.875rem;
  color: var(--secondary-600);
}

/* Responsive pricing interface */
@media (max-width: 768px) {
  .rate-cards-container {
    grid-template-columns: 1fr;
  }

  .rules-grid,
  .surcharge-grid,
  .discount-grid {
    grid-template-columns: 1fr;
  }

  .rate-row {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }

  .input-group {
    width: 100%;
  }

  .calculator-inputs {
    grid-template-columns: 1fr;
  }
}

/* ============================================================================
   CONFIG MANAGER STYLES
   ============================================================================ */

.config-container {
  padding: var(--space-6);
}

.config-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-6);
  gap: var(--space-4);
}

.config-controls .form-group {
  flex: 1;
  max-width: 400px;
}

.config-actions {
  display: flex;
  gap: var(--space-3);
}

.config-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.config-list {
  display: grid;
  gap: var(--space-4);
}

.config-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
  border-left: 4px solid var(--primary-500);
  transition: var(--transition-base);
}

.config-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.config-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-4);
}

.config-header h4 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--secondary-800);
  margin: 0;
}

.config-actions {
  display: flex;
  gap: var(--space-2);
}

.config-body {
  margin-top: var(--space-4);
}

.config-description {
  color: var(--secondary-600);
  margin-bottom: var(--space-3);
  font-size: 0.9rem;
}

.config-value {
  background: var(--secondary-50);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  border: 1px solid var(--secondary-200);
}

.config-value pre {
  margin: 0;
  font-family: var(--font-family-mono);
  font-size: 0.85rem;
  color: var(--secondary-700);
  white-space: pre-wrap;
  word-break: break-word;
}

/* ============================================================================
   CUSTOMER MANAGER STYLES
   ============================================================================ */

.customer-container {
  padding: var(--space-6);
}

.customer-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-6);
  gap: var(--space-4);
}

.customer-controls .form-group {
  flex: 1;
  max-width: 300px;
}

.customer-filters {
  display: flex;
  gap: var(--space-3);
}

.customer-filters .form-control {
  min-width: 150px;
}

.customer-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.customer-list {
  display: grid;
  gap: var(--space-4);
}

.customer-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
  border-left: 4px solid var(--success-500);
  transition: var(--transition-base);
}

.customer-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.customer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-4);
}

.customer-header h4 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--secondary-800);
  margin: 0;
}

.customer-tier {
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-md);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
}

.customer-tier.bronze {
  background: #cd7f32;
  color: white;
}

.customer-tier.silver {
  background: #c0c0c0;
  color: white;
}

.customer-tier.gold {
  background: #ffd700;
  color: #333;
}

.customer-tier.platinum {
  background: linear-gradient(45deg, #e5e4e2, #b4b4b4);
  color: #333;
}

.customer-body {
  margin-bottom: var(--space-4);
}

.customer-body p {
  margin: var(--space-2) 0;
  color: var(--secondary-600);
  font-size: 0.9rem;
}

.customer-body i {
  width: 16px;
  margin-right: var(--space-2);
  color: var(--primary-500);
}

.customer-actions {
  display: flex;
  gap: var(--space-2);
}

/* Responsive adjustments */
@media (max-width: 768px) {

  .config-controls,
  .customer-controls {
    flex-direction: column;
    align-items: stretch;
  }

  .config-controls .form-group,
  .customer-controls .form-group {
    max-width: none;
  }

  .config-actions,
  .customer-filters {
    justify-content: center;
  }

  .customer-filters {
    flex-direction: column;
  }

  .customer-filters .form-control {
    min-width: auto;
  }
}

/* ============================================================================
   MODAL STYLES
   ============================================================================ */

.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(2px);
}

.modal-content {
  background-color: white;
  margin: 5% auto;
  padding: 0;
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  animation: modalSlideIn 0.3s ease-out;
}

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

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-6);
  border-bottom: 1px solid var(--secondary-200);
  background: var(--secondary-50);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.modal-header h3 {
  margin: 0;
  color: var(--secondary-800);
  font-size: 1.2rem;
  font-weight: 600;
}

.close-btn {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--secondary-500);
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: var(--transition-base);
}

.close-btn:hover {
  background: var(--secondary-100);
  color: var(--secondary-700);
}

.modal-body {
  padding: var(--space-6);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-6);
  border-top: 1px solid var(--secondary-200);
  background: var(--secondary-50);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.form-group {
  margin-bottom: var(--space-4);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: 500;
  color: var(--secondary-700);
}

.form-control {
  width: 100%;
  padding: var(--space-3);
  border: 1px solid var(--secondary-300);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  transition: var(--transition-base);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px var(--primary-100);
}

.form-control:invalid {
  border-color: var(--danger-500);
}

.form-text {
  font-size: 0.8rem;
  color: var(--secondary-600);
  margin-top: var(--space-1);
}

textarea.form-control {
  resize: vertical;
  min-height: 100px;
  font-family: var(--font-family-mono);
}

/* Responsive modal */
@media (max-width: 768px) {
  .modal-content {
    width: 95%;
    margin: 10% auto;
  }

  .modal-header,
  .modal-body,
  .modal-footer {
    padding: var(--space-4);
  }
}