.invitation-success {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 18px 0;
  padding: 18px 20px;
  border: 1px solid #91ccb0;
  border-radius: 14px;
  background: #effaf4;
  color: #165336;
  overflow-wrap: anywhere;
}
.invitation-success[hidden] { display: none; }
.invitation-success:focus-visible { outline: 3px solid #22754e; outline-offset: 3px; }
.invitation-success strong { display: block; font-size: 18px; }
.invitation-success p { margin: 5px 0 0; color: #245c42; }
.invitation-success-mark { font-size: 24px; line-height: 1.2; }