.duplicate-manager {
  background: white;
  border-radius: 12px;
  padding: 25px;
  margin-top: 30px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.duplicate-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 25px;
  padding-bottom: 15px;
  border-bottom: 2px solid #e5e7eb;
}

.duplicate-header h2 {
  margin: 0;
  color: #1f2937;
  font-size: 1.5rem;
}

.duplicate-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  padding: 15px;
  background: #f9fafb;
  border-radius: 8px;
  border: 1px solid #e5e7eb;
}

.duplicate-controls label {
  font-weight: 600;
  color: #374151;
  font-size: 14px;
}

.duplicate-controls select {
  padding: 8px 12px;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  font-size: 14px;
  background: white;
  cursor: pointer;
  color: #1f2937;
  min-width: 150px;
}

.duplicate-controls select:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.btn-close {
  background: #f3f4f6;
  border: none;
  color: #6b7280;
  font-size: 24px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-close:hover {
  background: #e5e7eb;
  color: #1f2937;
}

.loading,
.no-duplicates {
  text-align: center;
  padding: 60px 20px;
  color: #6b7280;
  font-size: 16px;
}

.no-duplicates {
  color: #10b981;
  font-size: 18px;
}

.duplicates-list {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.duplicate-group {
  background: #f9fafb;
  border-radius: 12px;
  padding: 20px;
  border: 2px solid #e5e7eb;
}

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

.duplicate-info h3 {
  margin: 0;
  color: #374151;
  font-size: 1.2rem;
}

.count-badge {
  background: #ef4444;
  color: white;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
}

.guests-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 15px;
  margin-bottom: 20px;
}

.guest-card {
  background: white;
  border: 2px solid #d1d5db;
  border-radius: 8px;
  padding: 15px;
  cursor: pointer;
  transition: all 0.2s;
}

.guest-card:hover {
  border-color: #667eea;
  box-shadow: 0 2px 8px rgba(102, 126, 234, 0.2);
}

.guest-card.selected {
  border-color: #667eea;
  background: #f0f4ff;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.radio-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid #e5e7eb;
}

.radio-wrapper input[type="radio"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.radio-wrapper label {
  font-weight: 600;
  color: #667eea;
  cursor: pointer;
  margin: 0;
}

.guest-details {
  font-size: 14px;
}

.guest-details h4 {
  margin: 0 0 10px 0;
  color: #1f2937;
  font-size: 16px;
}

.guest-details p {
  margin: 6px 0;
  color: #6b7280;
}

.guest-details strong {
  color: #374151;
}

.owner-tag {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid #e5e7eb;
  font-size: 12px;
  color: #9ca3af;
}

.merge-actions {
  display: flex;
  justify-content: center;
  padding-top: 15px;
}

.merge-actions .btn {
  min-width: 200px;
}

.merge-actions .btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Responsive */
@media (max-width: 768px) {
  .duplicate-manager {
    padding: 15px;
  }

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

  .duplicate-info {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .merge-actions .btn {
    width: 100%;
  }
}