.md-header__title.md-header__title--active .md-header__topic:first-child {
  transform: none !important;
  opacity: 1 !important;
}

.md-header__title.md-header__title--active .md-header__topic:last-child {
  transform: none !important;
  opacity: 0 !important;
  display: none !important;
}

.abstract {
  margin: 30px auto !important;
  max-width: 800px;
}


/* Ensure the horizontal tab bar wraps tightly around the buttons and stays centered */
.tabbed-labels {
  display: flex !important;
  justify-content: center !important;
  width: 100% !important;
  border-bottom: 1px solid var(--md-default-fg-color--lightest);
}

/* Center and expand the abstract content underneath the tabs */
.tabbed-content {
  width: 100% !important;
  text-align: left; /* Keeps the text itself clean and readable */
  padding-top: 15px;
}