.reveal .promo-badge {
  position: fixed;
  top: 20px;
  right: -40px;
  width: 180px;
  height: 180px;

  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  text-align: center;

  color: white;
  font-size: 16px;
  font-weight: 900;
  text-transform: none;
  line-height: 1.1;

  background:
    linear-gradient(rgba(220, 0, 0, 0.30), rgba(255, 140, 0, 0.20)),
    url("images/promo.jpg") center / cover no-repeat;

  clip-path: polygon(
    50% 0%, 61% 20%, 82% 8%, 74% 30%,
    100% 35%, 78% 50%, 100% 65%, 74% 70%,
    82% 92%, 61% 80%, 50% 100%, 39% 80%,
    18% 92%, 26% 70%, 0% 65%, 22% 50%,
    0% 35%, 26% 30%, 18% 8%, 39% 20%
  );

  border: 3px solid #ffe066;
  box-shadow: 0 0 16px rgba(255, 200, 0, 0.4);
  z-index: 999;
}

.reveal .promo-badge span {
  display: inline-block;
  transform: rotate(30deg);
}