:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface-hover: #222633;
  --surface-active: #2a2e3d;
  --border: #2a2e3d;
  --text: #e4e6eb;
  --text-muted: #8b8fa3;
  --text-secondary: #a0a4b8;
  --primary: #25d366;
  --primary-hover: #1eba57;
  --primary-glow: rgba(37, 211, 102, 0.3);
  --danger: #e74c4c;
  --danger-hover: #d43d3d;
  --danger-glow: rgba(231, 76, 76, 0.3);
  --warning: #f0ad4e;
  --warning-hover: #e09e3f;
  --warning-glow: rgba(240, 173, 78, 0.3);
  --info: #6c63ff;
  --info-hover: #5a52e0;
  --info-glow: rgba(108, 99, 255, 0.3);
  --success: #4caf50;
  --success-hover: #45a049;
  --radius-sm: 6px;
  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 8px 32px rgba(0, 0, 0, 0.5);
  --transition-fast: 150ms ease;
  --transition: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

:root[data-theme="light"] {
  --bg: #f8f9fa;
  --surface: #ffffff;
  --surface-hover: #f0f1f4;
  --surface-active: #e8e9ec;
  --border: #e1e4e8;
  --text: #1a1d27;
  --text-muted: #6a6e7c;
  --text-secondary: #8b8fa3;
  --primary: #25d366;
  --primary-hover: #1eba57;
  --primary-glow: rgba(37, 211, 102, 0.2);
  --danger: #dc3545;
  --danger-hover: #c82333;
  --danger-glow: rgba(220, 53, 69, 0.2);
  --warning: #f0ad4e;
  --warning-hover: #e09e3f;
  --warning-glow: rgba(240, 173, 78, 0.2);
  --info: #6c63ff;
  --info-hover: #5a52e0;
  --info-glow: rgba(108, 99, 255, 0.2);
  --success: #28a745;
  --success-hover: #218838;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 8px 32px rgba(0, 0, 0, 0.15);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
  transition: background-color var(--transition), color var(--transition);
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from { 
    opacity: 0; 
    transform: translateY(20px); 
  }
  to { 
    opacity: 1; 
    transform: translateY(0); 
  }
}

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

@keyframes slideInLeft {
  from { 
    opacity: 0; 
    transform: translateX(-30px); 
  }
  to { 
    opacity: 1; 
    transform: translateX(0); 
  }
}

@keyframes slideInRight {
  from { 
    opacity: 0; 
    transform: translateX(30px); 
  }
  to { 
    opacity: 1; 
    transform: translateX(0); 
  }
}

@keyframes scaleIn {
  from { 
    opacity: 0; 
    transform: scale(0.9); 
  }
  to { 
    opacity: 1; 
    transform: scale(1); 
  }
}

@keyframes pulse {
  0%, 100% { 
    transform: scale(1); 
    box-shadow: 0 0 0 0 var(--primary-glow);
  }
  50% { 
    transform: scale(1.02); 
    box-shadow: 0 0 20px 4px var(--primary-glow);
  }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

@keyframes glow {
  0%, 100% { box-shadow: 0 0 5px var(--primary-glow); }
  50% { box-shadow: 0 0 20px var(--primary-glow), 0 0 40px var(--primary-glow); }
}

@keyframes ripple {
  0% { transform: scale(0); opacity: 0.5; }
  100% { transform: scale(4); opacity: 0; }
}

.animate-fadeIn { animation: fadeIn var(--transition) forwards; }
.animate-fadeInUp { animation: fadeInUp var(--transition) forwards; }
.animate-fadeInDown { animation: fadeInDown var(--transition) forwards; }
.animate-slideInLeft { animation: slideInLeft var(--transition) forwards; }
.animate-slideInRight { animation: slideInRight var(--transition) forwards; }
.animate-scaleIn { animation: scaleIn var(--transition) forwards; }

.stagger-1 { animation-delay: 50ms; }
.stagger-2 { animation-delay: 100ms; }
.stagger-3 { animation-delay: 150ms; }
.stagger-4 { animation-delay: 200ms; }
.stagger-5 { animation-delay: 250ms; }
.stagger-6 { animation-delay: 300ms; }

/* App Container */
.app {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
  animation: fadeIn var(--transition) forwards;
}

/* Header */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
  animation: fadeInDown var(--transition) forwards;
}

.header-left { 
  display: flex; 
  align-items: baseline; 
  gap: 12px; 
}

h1 { 
  font-size: 26px; 
  font-weight: 700; 
  background: linear-gradient(135deg, var(--primary), var(--info));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle { 
  font-size: 14px; 
  color: var(--text-muted); 
}

.header-right { 
  display: flex; 
  align-items: center; 
  gap: 16px; 
}

.phone { 
  font-size: 13px; 
  color: var(--text-muted); 
}

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

/* Theme Toggle */
.theme-toggle {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--surface-hover);
  border-color: var(--primary);
  color: var(--text);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-fast);
}

.theme-toggle:hover svg {
  transform: rotate(15deg);
}

/* Profile Dropdown */
.profile-dropdown {
  position: relative;
}

.profile-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: all var(--transition-fast);
}

.profile-btn:hover,
.profile-btn:focus-visible {
  background: var(--surface-hover);
  border-color: var(--primary);
  outline: none;
}

.profile-btn:focus-visible {
  box-shadow: 0 0 0 2px var(--primary);
}

.profile-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--info));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 14px;
  color: #fff;
}

.profile-name {
  font-size: 14px;
  font-weight: 500;
}

.profile-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 8px;
  min-width: 220px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
  z-index: 100;
}

.profile-dropdown.open .profile-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.profile-menu-header {
  padding: 12px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 8px;
}

.profile-menu-email {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

.profile-menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 14px;
  transition: all var(--transition-fast);
}

.profile-menu-item:hover {
  background: var(--surface-hover);
}

.profile-menu-item svg {
  width: 18px;
  height: 18px;
  color: var(--text-muted);
}

.profile-menu-divider {
  height: 1px;
  background: var(--border);
  margin: 8px 0;
}

.profile-menu-item-logout:hover {
  background: var(--danger-glow);
  color: var(--danger);
}

.profile-menu-item-logout:hover svg {
  color: var(--danger);
}

/* Confirm Dialog */
.confirm-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  opacity: 0;
  transition: opacity 0.2s ease;
  backdrop-filter: blur(2px);
}

.confirm-overlay.active {
  opacity: 1;
}

.confirm-dialog {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  max-width: 420px;
  width: 90%;
  box-shadow: var(--shadow-lg);
  transform: scale(0.95);
  transition: transform 0.2s ease;
}

.confirm-overlay.active .confirm-dialog {
  transform: scale(1);
}

.confirm-title {
  margin: 0 0 12px;
  font-size: 18px;
}

.confirm-message {
  color: var(--text-muted);
  margin: 0 0 24px;
  font-size: 14px;
  line-height: 1.5;
}

.confirm-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

/* Empty States */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 48px 24px;
  text-align: center;
}

.empty-state-icon {
  font-size: 40px;
  line-height: 1;
  opacity: 0.5;
}

.empty-state-title {
  font-size: 16px;
  font-weight: 600;
}

.empty-state-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  max-width: 300px;
}

.empty-state .btn {
  margin-top: 12px;
}

/* Loading Skeletons */
.skeleton {
  height: 14px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--surface-hover) 25%, var(--border) 50%, var(--surface-hover) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Hamburger Menu */
.hamburger {
  display: none;
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius);
  transition: background var(--transition-fast);
}

.hamburger:hover {
  background: var(--surface-hover);
}

.nav-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 49;
}

/* Keyboard Shortcuts Help */
.shortcut-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
  font-size: 13px;
}

.shortcut-keys {
  display: flex;
  gap: 4px;
  align-items: center;
}

kbd {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 8px;
  font-size: 12px;
  font-family: monospace;
  min-width: 24px;
  text-align: center;
}

/* Business Mode Selector */
.mode-selector {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mode-option {
  cursor: pointer;
}

.mode-option input[type="radio"] {
  display: none;
}

.mode-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.mode-card:hover {
  border-color: var(--primary);
  background: var(--surface-hover);
}

.mode-option input:checked + .mode-card {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.1);
  box-shadow: 0 0 0 1px var(--primary);
}

.mode-icon {
  font-size: 24px;
  line-height: 1;
  flex-shrink: 0;
}

.mode-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mode-info strong {
  font-size: 14px;
}

.mode-info span {
  font-size: 12px;
  color: var(--text-muted);
}

/* Lead Score Badge */
.score-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}

.score-high {
  background: rgba(16, 185, 129, 0.15);
  color: var(--success);
}

.score-medium {
  background: rgba(245, 158, 11, 0.15);
  color: var(--warning);
}

.score-low {
  background: rgba(107, 114, 128, 0.15);
  color: var(--text-muted);
}

/* Badge */
.badge {
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: all var(--transition-fast);
}

.badge-connected { 
  background: rgba(37, 211, 102, 0.15); 
  color: var(--primary); 
  animation: pulse 2s infinite;
}

.badge-connecting { 
  background: rgba(240, 173, 78, 0.15); 
  color: var(--warning); 
}

.badge-disconnected { 
  background: rgba(231, 76, 76, 0.15); 
  color: var(--danger); 
}

.badge-success { background: rgba(76, 175, 80, 0.15); color: var(--success); }
.badge-info { background: rgba(108, 99, 255, 0.15); color: var(--info); }
.badge-warning { background: rgba(240, 173, 78, 0.15); color: var(--warning); }
.badge-danger { background: rgba(231, 76, 76, 0.15); color: var(--danger); }

/* Nav */
nav {
  display: flex;
  gap: 4px;
  margin-bottom: 24px;
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 6px;
  overflow-x: auto;
  animation: fadeInUp var(--transition) forwards;
  animation-delay: 100ms;
  box-shadow: var(--shadow-sm);
}

.nav-btn {
  flex: 1;
  padding: 12px 20px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius);
  transition: all var(--transition-fast);
  white-space: nowrap;
  min-width: 0;
  position: relative;
  overflow: hidden;
}

.nav-btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: var(--primary-glow);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.nav-btn:hover { 
  color: var(--text); 
  background: var(--surface-hover); 
}

.nav-btn:hover::before {
  width: 100px;
  height: 100px;
}

.nav-btn.active { 
  color: var(--text); 
  background: var(--bg);
  box-shadow: var(--shadow-sm);
}

/* Panels */
.panel { 
  display: none; 
  animation: fadeInUp var(--transition) forwards;
}

.panel.active { 
  display: block; 
}

/* Cards */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
  transition: all var(--transition-fast);
  animation: fadeInUp var(--transition) forwards;
}

.card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--surface-active);
}

.card h2 { 
  font-size: 18px; 
  font-weight: 600;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

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

.card-header h2 { 
  margin-bottom: 0; 
}

/* Quick Stats Grid */
.quick-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.quick-stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all var(--transition-fast);
  animation: fadeInUp var(--transition) forwards;
  cursor: pointer;
}

.quick-stat:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.quick-stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  transition: transform var(--transition-fast);
}

.quick-stat:hover .quick-stat-icon {
  transform: scale(1.1);
}

.quick-stat-icon.primary { background: var(--primary-glow); }
.quick-stat-icon.info { background: var(--info-glow); }
.quick-stat-icon.success { background: rgba(76, 175, 80, 0.15); }
.quick-stat-icon.warning { background: var(--warning-glow); }
.quick-stat-icon.danger { background: var(--danger-glow); }

.quick-stat-content {
  flex: 1;
}

.quick-stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
}

.quick-stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

.quick-stat-change {
  font-size: 12px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 12px;
}

.quick-stat-change.positive {
  background: rgba(76, 175, 80, 0.15);
  color: var(--success);
}

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

/* QR Section */
#qr-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px 0;
}

.qr-placeholder {
  width: 280px;
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.qr-placeholder:hover {
  border-color: var(--primary);
  background: var(--surface-hover);
}

.qr-image {
  width: 280px;
  height: 280px;
  border-radius: var(--radius-lg);
  border: 2px solid var(--border);
  box-shadow: var(--shadow-lg);
  animation: scaleIn var(--transition);
}

.qr-connected {
  width: 280px;
  height: 280px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--primary);
  border-radius: var(--radius-lg);
  background: var(--primary-glow);
  animation: scaleIn var(--transition), glow 2s infinite;
}

.check-icon { 
  font-size: 56px; 
  color: var(--primary); 
  margin-bottom: 12px;
  animation: bounce 1s infinite;
}

.controls-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 20px;
  flex-wrap: wrap;
}

/* Stats */
.stats-grid { 
  display: grid; 
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); 
  gap: 16px; 
}

.stat { 
  text-align: center; 
  padding: 20px; 
  background: var(--bg); 
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: all var(--transition-fast);
}

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

.stat-value { 
  display: block; 
  font-size: 28px; 
  font-weight: 700; 
  color: var(--primary); 
  transition: transform var(--transition-fast);
}

.stat:hover .stat-value {
  transform: scale(1.05);
}

.stat-label { 
  font-size: 12px; 
  color: var(--text-muted); 
  text-transform: uppercase; 
  letter-spacing: 0.5px; 
  margin-top: 4px;
}

/* Buttons */
.btn {
  padding: 10px 24px;
  border: none;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.4s, height 0.4s;
}

.btn:active::after {
  width: 200px;
  height: 200px;
}

.btn-primary { 
  background: var(--primary); 
  color: #000; 
}

.btn-primary:hover { 
  background: var(--primary-hover); 
  box-shadow: 0 4px 12px var(--primary-glow);
  transform: translateY(-1px);
}

.btn-danger { 
  background: var(--danger); 
  color: #fff; 
}

.btn-danger:hover { 
  background: var(--danger-hover); 
  box-shadow: 0 4px 12px var(--danger-glow);
  transform: translateY(-1px);
}

.btn-secondary { 
  background: var(--surface-hover); 
  color: var(--text); 
  border: 1px solid var(--border); 
}

.btn-secondary:hover { 
  background: var(--surface-active); 
  border-color: var(--text-muted);
  transform: translateY(-1px);
}

.btn-info {
  background: var(--info);
  color: #fff;
}

.btn-info:hover {
  background: var(--info-hover);
  box-shadow: 0 4px 12px var(--info-glow);
  transform: translateY(-1px);
}

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

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

.btn-icon {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 24px;
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius);
  transition: all var(--transition-fast);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-icon:hover { 
  color: var(--text); 
  background: var(--surface-hover);
}

.btn-sm { 
  padding: 6px 14px; 
  font-size: 12px; 
}

.btn-lg {
  padding: 14px 32px;
  font-size: 16px;
}

.btn-group {
  display: flex;
  gap: 8px;
}

/* Tables */
table { 
  width: 100%; 
  border-collapse: collapse; 
}

th, td { 
  padding: 12px 16px; 
  text-align: left; 
  border-bottom: 1px solid var(--border); 
}

th { 
  font-size: 11px; 
  color: var(--text-muted); 
  text-transform: uppercase; 
  letter-spacing: 0.5px; 
  font-weight: 600;
  background: var(--surface-hover);
}

tr {
  transition: background-color var(--transition-fast);
}

tr:hover td { 
  background: var(--surface-hover); 
}

td { 
  font-size: 13px; 
  transition: background-color var(--transition-fast);
}

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

.truncate { 
  max-width: 200px; 
  overflow: hidden; 
  text-overflow: ellipsis; 
  white-space: nowrap; 
}

.dir-in { 
  color: var(--primary); 
  font-weight: 600;
}

.dir-out { 
  color: var(--warning); 
  font-weight: 600;
}

/* Action Buttons in Tables */
.action-btns {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* Pagination */
.pagination { 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  gap: 16px; 
  margin-top: 20px; 
}

.page-info { 
  font-size: 13px; 
  color: var(--text-muted); 
}

/* Settings */
.setting-row {
  display: flex;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  transition: background-color var(--transition-fast);
}

.setting-row:hover {
  background: var(--surface-hover);
  margin: 0 -24px;
  padding-left: 24px;
  padding-right: 24px;
}

.setting-row:last-child {
  border-bottom: none;
}

.setting-row label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  cursor: pointer;
}

.setting-row label span { 
  font-size: 14px; 
  font-weight: 500;
}

.setting-description {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

input[type="checkbox"] {
  width: 48px;
  height: 26px;
  appearance: none;
  background: var(--border);
  border-radius: 13px;
  cursor: pointer;
  position: relative;
  transition: all var(--transition-fast);
}

input[type="checkbox"]::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  background: #fff;
  border-radius: 50%;
  top: 3px;
  left: 3px;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

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

input[type="checkbox"]:checked::after { 
  transform: translateX(22px); 
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
  backdrop-filter: blur(4px);
}

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

.modal-content {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px;
  width: 520px;
  max-width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  transform: scale(0.9) translateY(20px);
  transition: all var(--transition);
}

.modal.active .modal-content {
  transform: scale(1) translateY(0);
}

.modal-header { 
  display: flex; 
  justify-content: space-between; 
  align-items: center; 
  margin-bottom: 24px; 
}

.modal-header h3 { 
  font-size: 20px; 
  font-weight: 600;
}

.modal-actions { 
  display: flex; 
  gap: 12px; 
  justify-content: flex-end; 
  margin-top: 24px; 
}

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

.form-group label { 
  display: block; 
  font-size: 13px; 
  color: var(--text-muted); 
  margin-bottom: 8px;
  font-weight: 500;
}

.form-row { 
  display: flex; 
  gap: 16px; 
}

.form-row .form-group { 
  flex: 1; 
}

input[type="text"],
input[type="number"],
input[type="email"],
input[type="password"],
input[type="date"],
input[type="tel"],
select,
textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  transition: all var(--transition-fast);
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

textarea { 
  resize: vertical; 
  min-height: 100px;
}

/* Login Screen */
.login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, var(--bg) 0%, var(--surface) 100%);
  animation: fadeIn var(--transition) forwards;
}

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 48px;
  width: 420px;
  max-width: 90%;
  text-align: center;
  box-shadow: var(--shadow-xl);
  animation: scaleIn var(--transition) forwards;
}

.login-card h1 { 
  font-size: 32px; 
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--primary), var(--info));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-card p { 
  color: var(--text-muted); 
  font-size: 14px; 
  margin-bottom: 28px; 
}

.login-error { 
  color: var(--danger); 
  font-size: 13px; 
  margin-top: 16px;
  padding: 12px;
  background: var(--danger-glow);
  border-radius: var(--radius);
}

.login-success {
  color: var(--success);
  font-size: 13px;
  margin-top: 16px;
  padding: 12px;
  background: rgba(76, 175, 80, 0.15);
  border-radius: var(--radius);
}

/* Filter row */
.filter-row {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.filter-row select,
.filter-row input {
  max-width: 220px;
}

/* Search input */
.search-input {
  position: relative;
}

.search-input input {
  padding-left: 40px;
}

.search-input::before {
  content: '🔍';
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
  opacity: 0.5;
}

/* Plans Grid */
.plans-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 16px;
}

.plan-card {
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px;
  text-align: center;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.plan-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--info));
  transform: scaleX(0);
  transition: transform var(--transition);
}

.plan-card:hover { 
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.plan-card:hover::before {
  transform: scaleX(1);
}

.plan-card.plan-active { 
  border-color: var(--primary); 
  background: var(--primary-glow);
}

.plan-card.plan-active::before {
  transform: scaleX(1);
}

.plan-card h3 { 
  font-size: 20px; 
  margin-bottom: 12px; 
}

.plan-price {
  font-size: 2.5em;
  font-weight: 700;
  color: var(--primary);
  margin: 16px 0 8px;
}

.plan-cycle {
  color: var(--text-muted);
  font-size: 0.95em;
  margin-bottom: 12px;
}

.plan-desc {
  color: var(--text-muted);
  font-size: 0.9em;
  margin-bottom: 16px;
  line-height: 1.5;
}

.plan-savings {
  color: var(--success);
  font-weight: 700;
  font-size: 0.95em;
  margin: 8px 0 12px;
  padding: 4px 12px;
  background: rgba(76, 175, 80, 0.15);
  border-radius: 20px;
  display: inline-block;
}

.plan-features {
  list-style: none;
  text-align: left;
  padding: 0;
  margin: 20px 0;
}

.plan-features li {
  padding: 8px 0;
  font-size: 0.95em;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.plan-features li::before {
  content: '✓';
  color: var(--primary);
  font-weight: 700;
  width: 20px;
  height: 20px;
  background: var(--primary-glow);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
}

/* Loading States */
.loading-shimmer {
  background: linear-gradient(90deg, var(--surface) 25%, var(--surface-hover) 50%, var(--surface) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius);
}

/* Empty States */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-state h3 {
  font-size: 18px;
  margin-bottom: 8px;
  color: var(--text);
}

/* Progress Bars */
.progress-bar {
  background: var(--surface-hover);
  border-radius: 10px;
  height: 10px;
  overflow: hidden;
  margin-top: 12px;
}

.progress-fill {
  height: 100%;
  border-radius: 10px;
  transition: width 0.5s ease, background-color 0.3s ease;
  background: linear-gradient(90deg, var(--primary), var(--info));
}

.progress-fill.warning {
  background: linear-gradient(90deg, var(--warning), #ff9800);
}

.progress-fill.danger {
  background: linear-gradient(90deg, var(--danger), #ff5722);
}

/* Dashboard Widgets */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-bottom: 24px;
}

.dashboard-widget {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow);
  transition: all var(--transition-fast);
  animation: fadeInUp var(--transition) forwards;
}

.dashboard-widget:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--surface-active);
}

.dashboard-widget h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Charts & Graphs Placeholder */
.chart-placeholder {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 20px;
  height: 200px;
  display: flex;
  align-items: flex-end;
  justify-content: space-around;
  gap: 8px;
}

.chart-bar {
  flex: 1;
  background: linear-gradient(180deg, var(--primary), var(--info));
  border-radius: 4px 4px 0 0;
  min-height: 20px;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.chart-bar:hover {
  opacity: 0.8;
  transform: scaleY(1.05);
}

/* Notifications */
#notification-container {
  position: fixed;
  top: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 10000;
  max-width: 400px;
}

.notification {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 12px;
  animation: slideInRight var(--transition) forwards;
  max-width: 400px;
}

.notification.success { border-left: 4px solid var(--success); }
.notification.error { border-left: 4px solid var(--danger); }
.notification.warning { border-left: 4px solid var(--warning); }
.notification.info { border-left: 4px solid var(--info); }

.notification-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 18px;
  padding: 4px;
  margin-left: auto;
}

/* Tooltip */
.tooltip {
  position: relative;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 8px 12px;
  border-radius: var(--radius);
  font-size: 12px;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  z-index: 100;
  box-shadow: var(--shadow);
}

.tooltip:hover::after {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(-4px);
}

/* Responsive */
@media (max-width: 768px) {
  .app {
    padding: 16px;
  }
  
  header {
    flex-direction: column;
    gap: 16px;
    align-items: flex-start;
  }
  
  .header-right {
    width: 100%;
    justify-content: space-between;
  }
  
  .hamburger {
    display: flex;
  }

  nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 260px;
    background: var(--surface);
    border-right: 1px solid var(--border);
    flex-direction: column;
    padding: 24px 12px;
    gap: 4px;
    z-index: 50;
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
  }

  .nav-open nav {
    display: flex;
    transform: translateX(0);
  }

  .nav-open .nav-backdrop {
    display: block;
  }

  .nav-btn {
    width: 100%;
    justify-content: flex-start;
    min-width: unset;
  }
  
  .quick-stats {
    grid-template-columns: 1fr;
  }
  
  .stats-grid { 
    grid-template-columns: repeat(2, 1fr); 
  }
  
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
  
  .form-row { 
    flex-direction: column; 
    gap: 0; 
  }
  
  table { 
    font-size: 12px; 
  }
  
  th, td { 
    padding: 10px 8px; 
  }
  
  .login-card {
    padding: 32px 24px;
  }

  .profile-menu {
    right: 0;
    max-width: calc(100vw - 32px);
  }

  .profile-name {
    display: none;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 22px;
  }
  
  .card {
    padding: 20px;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .qr-placeholder,
  .qr-image,
  .qr-connected {
    width: 240px;
    height: 240px;
  }
}