* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  overflow: hidden;
}

/* Splide vertical fullscreen */
#fullscreen-slider.splide {
  height: 100vh;
  position: fixed;
  inset: 0;
}

#fullscreen-slider .splide__track {
  height: 100%;
}

#fullscreen-slider .splide__list {
  height: 100%;
  display: flex;
  flex-direction: column;
}

#fullscreen-slider .splide__slide {
  height: 100vh;
  flex-shrink: 0;
  list-style: none;
}

/* Each slide inner: full height, scrollable content area */
.slide-inner {
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.slide-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 2rem 3rem 4rem;
  -webkit-overflow-scrolling: touch;
}

/* Section colours */
.slide-1 {
  background: #1a365d;
  color: #e2e8f0;
}

.slide-2 {
  background: #22543d;
  color: #f0fff4;
}

.slide-3 {
  background: #553c9a;
  color: #faf5ff;
}

.slide-4 {
  background: #9c4221;
  color: #fffaf0;
}

.slide-content h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  font-weight: 700;
}

.slide-content p {
  font-size: 1.25rem;
  line-height: 1.7;
  margin-bottom: 0.75rem;
}

.overflow-demo {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.overflow-demo p {
  opacity: 0.9;
}

/* Pagination: dots on the right, vertical */
#fullscreen-slider .splide__pagination {
  position: fixed;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 10;
}

#fullscreen-slider .splide__pagination li {
  margin: 0;
}

#fullscreen-slider .splide__pagination .splide__pagination__page {
  width: 12px;
  height: 12px;
  background: rgba(255, 255, 255, 0.4);
  border: 2px solid rgba(255, 255, 255, 0.8);
}

#fullscreen-slider .splide__pagination .splide__pagination__page.is-active {
  background: #fff;
  transform: scale(1.2);
}