body {
  background-color: #f8f9fa;
}

.stat-card {
  transition: transform 0.2s;
}

.stat-card:hover {
  transform: translateY(-2px);
}

.stat-card .stat-icon {
  font-size: 2.5rem;
  opacity: 0.8;
}

.stat-card .stat-value {
  font-size: 2rem;
  font-weight: bold;
}

.stat-card .stat-label {
  color: #6c757d;
  font-size: 0.9rem;
}

.table-actions .btn {
  padding: 0.25rem 0.5rem;
  font-size: 0.875rem;
}

.status-badge {
  font-size: 0.75rem;
  padding: 0.35em 0.65em;
}

.campaign-progress {
  height: 25px;
}

.campaign-progress .progress-bar {
  line-height: 25px;
}

.event-feed {
  max-height: 400px;
  overflow-y: auto;
}

.event-item {
  padding: 0.5rem;
  border-left: 3px solid #dee2e6;
  margin-bottom: 0.5rem;
  background-color: #fff;
}

.event-item.event-open {
  border-left-color: #198754;
}

.event-item.event-click {
  border-left-color: #0d6efd;
}

.event-item.event-bounce {
  border-left-color: #dc3545;
}

.event-item.event-delivered {
  border-left-color: #20c997;
}

.event-item.event-reply {
  border-left-color: #ffc107;
}

.nav-link.active {
  font-weight: 600;
}

.placeholder-badge {
  font-family: monospace;
  font-size: 0.85rem;
}

.template-preview {
  border: 1px solid #dee2e6;
  border-radius: 0.375rem;
  padding: 1rem;
  background-color: #fff;
}

.loading-spinner {
  display: none;
}

.loading .loading-spinner {
  display: inline-block;
}

.clickable-row {
  cursor: pointer;
}

.clickable-row:hover {
  background-color: #f8f9fa;
}

.campaign-card {
  transition: box-shadow 0.2s;
}

.campaign-card:hover {
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.empty-state {
  text-align: center;
  padding: 3rem;
  color: #6c757d;
}

.empty-state i {
  font-size: 4rem;
  margin-bottom: 1rem;
}

@media (max-width: 768px) {
  .stat-card .stat-value {
    font-size: 1.5rem;
  }
  
  .stat-card .stat-icon {
    font-size: 2rem;
  }
}