/* Response 24 Hours v19 — opening copy cleanup.
   Center the shorter first chapter in the existing, fixed chapter space.
   The other chapters, artwork, section heights and scroll controllers are unchanged. */
.r19 .chapter-copy[data-chapter="0"] {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 0;
}
.r19 .chapter-copy[data-chapter="0"] > .r15-button {
  align-self: flex-start;
  margin-top: 10px;
  flex-shrink: 0;
}