.link-preview-tooltip {
  position: fixed;
  background: white;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  padding: 0;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
  max-width: 400px;
  z-index: 10000;
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.link-preview-tooltip.show {
  opacity: 1;
}

.link-preview-header {
  padding: 12px;
  border-bottom: 1px solid #f0f0f0;
}

.link-preview-title {
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 4px;
  color: #1a1a1a;
}

.link-preview-url {
  font-size: 12px;
  color: #666;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.link-preview-body {
  padding: 12px;
}

.link-preview-description {
  font-size: 13px;
  line-height: 1.4;
  color: #333;
}

.link-preview-image {
  width: 100%;
  height: auto;
  max-height: 200px;
  object-fit: cover;
  border-radius: 4px;
  margin-top: 8px;
}

.link-preview-loading {
  padding: 12px;
  text-align: center;
  color: #999;
  font-size: 13px;
}

/* Citation preview style */
.citation-preview {
  background: #f8f9fa;
  border-left: 3px solid #4285f4;
  padding: 12px;
  font-size: 13px;
  line-height: 1.5;
  color: #333;
}

.citation-preview-source {
  font-weight: 600;
  margin-bottom: 6px;
  color: #1a1a1a;
}