/* Completion is its own quiet page within step 5, never a diagram overlay. */
html.lesson-completion-quiet .lesson-nav { display: none; }
html.lesson-completion-quiet #lesson-main { top: 0; }
html.lesson-flow-active #lesson-main > #step-5.is-completion-screen {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-content: stretch;
  padding: 0;
  background: #000;
  transition: none;
}
#step-5.is-completion-screen > .transfer-inner,
#step-5.is-completion-screen > .section-toolbar,
#completion[hidden],
#completion > .completion-details { display: none !important; }
#step-5 > #completion {
  display: grid;
  place-items: center;
  width: 100%;
  max-width: none;
  min-height: 100%;
  margin: 0;
  padding: 2rem 1rem;
  border: 0;
  border-radius: 0;
  background: #000;
  box-shadow: none;
}
.completion-confirmation {
  display: grid;
  justify-items: center;
  gap: 1.5rem;
  width: min(100%, 28rem);
}
#completion-ack {
  margin: 0;
  color: #f5f5f7;
  font-size: clamp(1.35rem, 4vw, 1.8rem);
  line-height: 1.3;
  font-weight: 600;
}
#confirm-completion {
  min-height: 52px;
  max-width: 100%;
  padding: 0.85rem 1.4rem;
  font-size: 1rem;
  line-height: 1.35;
  white-space: normal;
}
#confirm-completion:disabled {
  opacity: 1;
  color: #a1a1a6;
  background: #171719;
  border-color: #333336;
}
#completion-menu-actions { margin-top: 1rem; }