.agent-avatar {
  border-radius: 50%;
  overflow: hidden;
  background: var(--surface);
  border: var(--btn-border-width) solid var(--border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.agent-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.agent-avatar-emoji {
  line-height: 1;
}