.jr-share-memory-btn.jr-share-memory-btn--compact{
  font-size: 12px;
  line-height: 1.2;
  padding: 4px 8px;
  margin-top: 6px;        /* space under Invite user */
  background: #6b7280;
  color: #fff;
  border: 0;
  border-radius: 6px;
  cursor: pointer;
}
.jr-share-memory-btn.jr-share-memory-btn--compact:hover{
  filter: brightness(0.95);
}

/* Make sure the Invite cell stacks nicely if a theme applies flex */
.memory-entry td .mi-invite-btn { /* keep default look */ }