/* --- colors --- */
:root{
  --pk-red: #e10600;
  --pk-dark: #111111;
  --pk-dark-2: #1b1b1b;
}

/* Keep slide background white */
.reveal .slides section{
  background: white;
}

/* Turn headings into a "title bar" */
.reveal .slides section h1,
.reveal .slides section h2{
  background: linear-gradient(90deg, var(--pk-dark), var(--pk-dark-2));
  color: #f2f2f2;
  padding: 0.6rem 0.9rem;
  border-radius: 10px;
  border-bottom: 4px solid var(--pk-red);
  display: inline-block;
  width: 100%;
  box-sizing: border-box;
  margin-bottom: 0.9rem;
}

/* Optional: make bold text red accents like your site */
.reveal strong{
  color: var(--pk-red);
}