:root {
  --main-bg-color: #444;
  --primary-color: white;
  --secondary-color: gold;
}
a {
  text-decoration: none;
  color: inherit;
}
html {
  width: 100vw;
  height: 100vh;
  background: url(../images/background.png) no-repeat center fixed;
  background-size: cover;
}
body {
  color: var(--primary-color);
  background-color: var(--main-bg-color);
  opacity: 0.9;
  width: 100vw;
  height: 100vh;
  margin: 0;
}
.container {
  height: 100%;
  width: 100%;
}
.background {
  position: absolute;
  z-index: -2;
  opacity: 0.1;
  overflow: hidden;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
}
.main {
  display: flex;
  justify-content: center;
  flex-direction: column;
  height: 100%;
  top: 0;
  padding-left: 30px;
}
.sns a {
  color: inherit;
  padding: 5px;
}
.sns i:hover {
  cursor: pointer;
  color: black;
}
.mainTitle {
  font-size: 60px;
  margin-bottom: 3px;
}
.description {
  margin: 1px 0 10px 0;
}
#titleHighlighted {
  color: var(--secondary-color);
}