* {
  font-family: "Bruno Ace";
  margin: 0;
  padding: 0;
}

body {
  display: grid;
  grid-template-areas:
    "header"
    "main";
  grid-template-columns: 1fr;
  grid-template-rows: 1fr 2fr;
  background-image: url("https://p4.wallpaperbetter.com/wallpaper/763/122/408/deep-space-4k-wallpaper-preview.jpg");
  background-size: cover;
  background-repeat: no-repeat;
  background-attachment: fixed;
}
body::before {
  content: "";
  display: block;
  position: fixed;
  z-index: -10;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("https://p4.wallpaperbetter.com/wallpaper/763/122/408/deep-space-4k-wallpaper-preview.jpg");
  filter: brightness(0.4);
  background-size: cover;
  background-repeat: no-repeat;
  background-attachment: fixed;
}

#background-video {
  position: relative;
  display: flex;
  margin: 0 auto;
  justify-content: center;
  width: 30%;
  z-index: -10;
}

#background-video img {
  transform: rotate(-23.5deg); /* Inclinacion real de la tierra */
  width: 100%;
  height: 100%;
  object-fit: contain;
  clip-path: circle(46% at 50% 50%);
}
header {
  grid-area: header;
  width: 100%;
  height: 15rem;
}

h1 {
  position: relative;
  top: 25%;
  margin-left: 10%;
  margin-right: 10%;
  width: 80%;
  background-color: rgba(20, 0, 81, 0.7);
  text-shadow: 5px 1px 10px rgb(120, 183, 120);
}

h1,
h2 {
  text-align: center;
  color: rgb(11, 228, 11);
  box-shadow: 1px 10px 20px rgb(11, 228, 11);
}

main {
  padding: 10%;
  grid-area: main;
}

form {
  display: flex;
  justify-content: center;
  align-items: center;
}
input,
button {
  text-align: center;
  font-size: 1rem;
  width: 20rem;
  height: 2rem;
  background-color: rgb(7, 43, 75);
  color: rgb(11, 228, 11);
  box-shadow: 1px 10px 20px rgb(11, 228, 11);
}
ul {
  position: relative;
  top: 5rem;
  list-style-type: none;
}
li {
  margin-top: 1rem;
}
table {
  box-shadow: 1px 10px 20px rgb(11, 228, 11);
  margin-top: -7rem;
}
table,
thead {
  color: rgb(11, 228, 11);
  width: 100%;
  background-color: rgb(7, 43, 75);
}
th {
  text-align: center;
  background-color: rgb(20, 2, 73);
  padding-left: 5px;
  padding-right: 5px;
}
tr {
  text-align: center;
}

tr:nth-child(even) {
  background-color: rgba(0, 217, 255, 0.3);
}

caption {
  background-color: rgb(7, 43, 75);
  font-size: 1.5rem;
  width: 100%;
  margin-bottom: 3rem;
  box-shadow: 1px 10px 20px rgb(11, 228, 11);
}

@media screen and (max-width: 780px) {
  caption {
    visibility: hidden;
  }
  .hidden {
    display: none;
  }
  main {
    margin: 0;
  }
}

@media screen and (max-width: 475px) {
  main {
    padding-left: 0;
    padding-right: 0;
  }
}