/* Ensure the whole window can be used */
html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  background: #111;
}

/* Catalogue fills the screen */
#catalogue {
  position: relative;
  width: 100%;
  height: calc(var(--vh, 1vh) * 100);  /* full responsive viewport height */
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  background: #111;
}

/* Swiper takes full space */
.heatshield-catalogue {
  width: 100%;
  height: 100%;
}

/* Each page centered */
.swiper-slide {
  display: flex;
  justify-content: center;
  align-items: center;
  background: #000;
}

/* Page images fit nicely */
.swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* Optional: position navigation arrows */
.swiper-button-prev,
.swiper-button-next {
  color: #fff;
}