html {
  height: 100%;
  background-color: black;
  color: white;
  font-family: Verdana, Helvetica, serif;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.1s ease-in-out;
}

a:hover {
  text-decoration: none;
  text-shadow: 3px 3px 10px #fff, -3px -3px 10px #fff;
}

#background-image {
  background-image: url("https://cdn.enp.one/img/backgrounds/cl-photo-boston.jpg");
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;

  filter: blur(6px);
  -webkit-filter: blur(6px);

  position: fixed;
  height: 100%;
  width: 100%;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
}

#content {
  text-align: center;
  text-shadow: 3px 3px 5px #000, -3px -3px 5px #000;
  font-weight: bold;
  color: white;

  padding: 1em;

  max-width: 50em;
  background-color: rgba(255, 255, 255, 0.2);
  border-style: solid;
  border-width: 2px;
  border-color: rgba(255, 255, 255, 0);
  border-radius: 128px;
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);

  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 10;
}

#logo {
  margin: auto;
  margin-top: -10em;
  max-width: 50%;
  min-width: 30%;
  display: block;
  border-style: solid;
  border-color: rgba(255, 255, 255, 0);
  border-radius: 50%;
  border-width: 5px;
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
}

#content p {
  margin: 2em;
  line-height: 1.5;
}

ul.buttons {
  list-style: none;
  padding-left: 0;
  margin-top: 3em;
  margin-bottom: 4em;
  font-size: 1.1em;
}

ul.buttons li {
  display: inline;
  line-height: 1;
  padding: 0.5em;
  margin-left: 0.5em;
  margin-right: 0.5em;

  text-transform: uppercase;
}

.button-youtube:hover {
  text-shadow: 0px 0px 5px #fff,
    -3px -3px 7px #ff0000,
    -3px 3px 7px #ff0000,
    3px -3px 7px #ff0000,
    3px 3px 7px #ff0000;
}

.button-instagram:hover {
  text-shadow: 0px 0px 5px #fff,
    -3px -3px 7px #5851db,
    -3px 3px 7px #fd1d1d,
    3px -3px 7px #c13584,
    3px 3px 7px #ffdc80;
}

.button-twitter:hover {
  text-shadow: 0px 0px 5px #fff,
    -3px -3px 7px #1da1f2,
    -3px 3px 7px #1da1f2,
    3px -3px 7px #1da1f2,
    3px 3px 7px #1da1f2;
}

.footer {
  font-size: 0.9em;
}