.participant-auth-gate {
  max-width: 420px;
  margin: 2.5rem auto;
  padding: 1.75rem;
  border: 1px solid var(--border, #dbe4ee);
  border-radius: 12px;
  background: var(--surface, #fff);
  box-shadow: 0 8px 24px rgba(21, 37, 53, 0.06);
}

.participant-auth-gate h2 {
  margin: 0 0 0.5rem;
  font-size: 1.35rem;
}

.participant-auth-gate p {
  margin: 0 0 1rem;
  color: var(--text-muted, #5a6b7d);
  line-height: 1.5;
}

.participant-auth-code-row {
  display: flex;
  gap: 0.5rem;
  align-items: stretch;
  margin-bottom: 0.75rem;
}

.participant-auth-code-row input {
  flex: 1;
  min-width: 0;
  font: inherit;
  font-size: 1.25rem;
  letter-spacing: 0.2em;
  text-align: center;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border, #dbe4ee);
  border-radius: 8px;
}

.participant-auth-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.participant-auth-status {
  font-size: 0.88rem;
  color: var(--text-muted, #5a6b7d);
  margin-top: 0.75rem;
}

.participant-auth-status.is-error {
  color: #b42318;
}

.participant-auth-status.is-success {
  color: #067647;
}