header {
  width: 100%;
  height: 100vh;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
}

nav {
  display: block;
  width: 100%;
  height: 3rem;
  position: sticky;
  top: 3%;
  left: 0%;

  transform-origin: left top;
  animation-name: progress;
  animation-timeline: scroll();
  animation-fill-mode: both;
  
  background-color: oklch(80% 50% var(--hue));
}

section {
  width: 70vw;
  height: auto;
  position: relative;
  border: solid 3px pink;
  border-radius: 5px; 
  margin: 0 auto;
  margin-bottom: 3rem;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
}

section ul {
  display: flex;
  width: 100%;
  height: auto;
  overflow-x: scroll;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  scroll-behavior: smooth;
  overscroll-behavior: contain;
}

section ul:first-of-type li {
  list-style-type: none;
  flex: 0 0 100%;
  
  & a {
    display: flex;
    justify-content: center;
    scroll-snap-align: center;
  }
  
  & img {
    display: block;
    width: 50%;
    height: auto;
    object-fit: contain;
  }
}

section ul:nth-of-type(2) {
    display: flex;
    justify-content: center;
    gap: 0.25rem;
    width: 100%;
    height: .8em;
    padding: 0;
}

section ul:nth-of-type(2) li {
    display: flex;
    width: .8em;
    background-color: lightblue;
    list-style-type: none;
    border-radius: 100%;

    & a {
    width: 100%;
    height: auto;
  }
}

@property --hue {
  syntax: "<angle>";
  initial-value: 0turn;
  inherits: false;
}

@keyframes progress {
  0% {  
   scale:0 1;
    --hue: 0turn;
  }
  100% {
    scale:1;
    --hue: 1turn;
  }
}

@keyframes colorized-dot {
  to {
    background-color: pink;
  }
}



footer {
  display: flex;
  flex-direction: column
}