.promo-banner {
  position: relative;
  overflow: hidden;
  background: #111;           /* couleur de fond */
  color: #fff;                /* couleur du texte */
  padding: 14px 0;
  font-size: 1.2rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 40px;
}

.scroll-text {
  white-space: nowrap;
  display: inline-block;
  animation: scroll 15s linear infinite;
}

@keyframes scroll {
  from {
    transform: translateX(100%);
  }
  to {
    transform: translateX(-100%);
  }
}

/* Optionnel : effet légèrement plus moderne */
.promo-banner::before,
.promo-banner::after {
  content: "";
  position: absolute;
  top: 0;
  width: 80px;
  height: 100%;
  pointer-events: none;
  z-index: 2;
}

.promo-banner::before {
  left: 0;
  background: linear-gradient(to right, #111 0%, transparent 100%);
}

.promo-banner::after {
  right: 0;
  background: linear-gradient(to left, #111 0%, transparent 100%);
}