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

a,
button,
img {
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

button {
  background-color: transparent;
  border: none;
  outline: none;
}

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: gray transparent;
}

body {
  height: 500vh;
  width: 100%;
  overflow-x: hidden;
}

.section {
  height: 100vh;
  width: 100%;
  background: linear-gradient(to right, orange, mediumpurple);
  view-timeline: --section;

  .content {
    position: relative;
    inset: 0;
    width: 100%;
    height: 100%;
    background-image: var(--bg-image);
    animation: move linear both;
    animation-timeline: --section;
    background-size: 150%;
    background-repeat: no-repeat;
  }
}

@keyframes move {
  0% {
    clip-path: circle(0px at 50% 50%);
  }
  100% {
    clip-path: circle(200vw at 50% 50%);
  }
}