html, body {
  margin: 0;
  overflow: hidden;
}

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #17141a;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.stage {
  position: relative;
  overflow: hidden;
  cursor: none;
}

.half {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 50%;
  z-index: 0;
}

.half--left {
  left: 0;
  background: #17141a;
}

.half--right {
  right: 0;
  background: #2f6df6;
}

.banner {
  position: relative;
  z-index: 1;
  margin: 0;
  font-weight: 800;
  font-size: clamp(34px, 11vw, 56px);
  line-height: 1;
  font-family: inherit;
  color: #fff7e6;
  letter-spacing: -0.02em;
}

.cursor {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
  width: 70px;
  height: 70px;
  margin: -35px 0 0 -35px;
  border-radius: 50%;
  background: #ffffff;
  mix-blend-mode: difference;
  pointer-events: none;
}
.cursor.is-demo {
  animation: cursor-path 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

@keyframes cursor-path {
  0% {
    transform: translate(80px, 60px);
  }
  35% {
    transform: translate(280px, 150px);
  }
  70% {
    transform: translate(120px, 200px);
  }
  100% {
    transform: translate(80px, 60px);
  }
}
@media (pointer: coarse) {
  .cursor {
    display: none;
  }
  .stage {
    cursor: auto;
  }
}
@media (prefers-reduced-motion: reduce) {
  .cursor.is-demo {
    animation: none;
    transform: translate(80px, 60px);
  }
}