* {
  box-sizing: border-box;
  margin: 0;
  font-family: system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif,
    "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
}

html {
  background: #222;
}

.night-sky {
  background: #222;
  height: 100vh;
  width: 100vw;
}

.moon {
  width: 8rem;
  height: 8rem;
  border-radius: 50%;
  background: white;
  animation: arc 500s infinite linear;
  position: relative;
  top: 10rem;
}

@keyframes arc {
  0% {
    transform: translate(0, 0);
  }
  50% {
    transform: translate(50vw, -10rem) rotate(45deg);
  }
  100% {
    transform: translate(100vw, 0) rotate(90deg);
  }
}
.spot {
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background: gray;
  top: 2rem;
  position: relative;
  left: 2rem;
}
.spot1 {
  top: 2rem;
  left: 2rem;
}
.spot2 {
  top: 2rem;
  left: 5rem;
}
.spot3 {
  top: 4rem;
  left: 2rem;
}

.star {
  width: 0.2rem;
  height: 0.2rem;
  background: yellow;
  animation: star 1s infinite alternate;
  transform: rotate(45deg);
  z-index: 2;
  position: absolute;
}

@keyframes star {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
.stars-container {
  border: 5px solid red;
  z-index: -1;
}

.article {
  position: absolute;
  background: #fff;
  padding: 2rem;
  max-width: 40rem;
  top: 70vh;
  border-radius: 0.5rem;
  display: flex;
  gap: 1rem;
  flex-direction: column;
}

.article-container {
  width: 100vw;
  display: flex;
  justify-content: center;
  align-items: center;
}