/* =====================================
   Space Exploration Stylesheet
   Author: Marissa Gimbel
   ===================================== */
body {
  margin: 0;
  font-family: "Arial", sans-serif;
  background-color: #f9fdfc;
  color: #222;
  line-height: 1.6;
}

header {
  background-color: #212d5c;
  color: #fff;
  text-align: center;
  padding: 30px;
}

header h1 {
  font-size: 2.5em;
  margin-bottom: 10px;
}

header p {
  font-size: 1.2em;
  font-style: italic;
}

main {
  padding: 20px;
}

h2 {
  color: #394d8b;
  margin-top: 40px;
}

ul {
  list-style-type: square;
  padding-left: 20px;
}

.gallery figure {
  margin: 20px 0;
  text-align: center;
}

.gallery img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
}

.video-section iframe {
  display: block;
  margin: 0 auto;
  max-width: 100%;
  border-radius: 8px;
}

.planet-facts article {
  background-color: #eef4ff;
  padding: 15px;
  border-radius: 10px;
  margin-bottom: 20px;
  box-shadow: 0 2px 6px rgba(0, 0, 0,