.astro-wrapper {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  color: #eaf0ff;
}
.astro-block {
  margin: 30px 0;
}
.astro-card {
  background: rgba(255,255,255,0.05);
  border-radius: 12px;
  padding: 16px;
  min-height: 100px;
}
.astro-iframe {
  width: 100%;
  height: 500px;
  border: none;
  border-radius: 12px;
  background: rgba(255,255,255,0.04);
}
img.apod-img {
  max-width: 100%;
  border-radius: 10px;
  margin-top: 8px;
}