:root {
  --action-button-background: #ff9900;
  --hint-button-background: rgb(47, 189, 255, 0.5);
  --answer-button-background: #ff9200;
}

@font-face {
  font-family: "Orbitron";
  font-style: normal;
  font-weight: 400;
  src: url(../fonts/Orbitron-Regular.ttf);
}

@font-face {
  font-family: "Orbitron";
  font-style: normal;
  font-weight: 900;
  src: url(../fonts/orbitron-bold.otf);
}

b {
  font-weight: 900;
}

html {
  font-family: "Orbitron", sans-serif;
  color: #fff;
  overflow-x: hidden;
  overflow-y: hidden;
  line-height: normal;
  letter-spacing: 4px;
  user-select: none;
}

html.mainscreen {
  text-shadow: 2px 2px 1px darkred;
}

html.touchscreen {
  text-shadow: 2px 2px 6px #000;
}

body {
  width: 100vw;
  background-color: transparent;
  margin-left: auto;
  margin-right: auto;
  font-size: xx-large;
  font-family: "Orbitron";
}

body.marsbg {
  background-color: black;
}

div.marsbg {
  background-color: black;
  background-image: url(../images/marsv3.jpg);
  background-repeat: no-repeat;
  background-size: cover;
  position: absolute;
  width: 1920px;
  height: 1080px;
  top: 0px;
  left: 0px;
}

div.marsfg {
  background-image: url(../images/marsv2-fg.png);
  background-repeat: no-repeat;
  background-size: cover;
  position: absolute;
  width: 1920px;
  height: 1080px;
  top: 0px;
  left: 0px;
}

div.marssky {
  background-image: url(../images/marsv3-nightsky.png);
  background-repeat: no-repeat;
  background-size: cover;
  position: absolute;
  width: 1920px;
  height: 1080px;
  top: 0px;
  left: 0px;
}

body.metalbg {
  background-color: black;
  background-image: url(../images/metal_7839.jpg);
  background-repeat: no-repeat;
  background-size: cover;
}

body.blackbg {
  background-color: black;
}

@keyframes slowZoom {
  0% {
    transform: scale(0.7);
  }
  60% {
    transform: scale(1);
  }
  100% {
    transform: scale(0.7);
  }
}

body.admin {
  font-size: large;
}

h1 {
  font-size: 80px;
  white-space: nowrap;
}

.tick {
  font-family: "Ember", sans-serif;
}

.hint-button {
  border: 0;
  line-height: 1.5;
  padding: 10px 45px;
  border-radius: 10px;
  background-color: var(--hint-button-background);
  font-family: "Orbitron";
  clear: both;
  font-size: 40px;
}

div.y-centered-content {
  margin: 0;
  position: absolute;
  top: 50%;
  -ms-transform: translateY(-50%);
  transform: translateY(-50%);
}

div.x-centered-content {
  margin: 0;
  position: absolute;
  left: 50%;
  -ms-transform: translateX(-50%);
  transform: translateX(-50%);
}

div.scrolling-x-centered-content {
  text-align: center;
}

div.xy-centered-content {
  margin: 0;
  position: absolute;
  left: 50%;
  top: 50%;
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}

hr {
  border: none;
  border-top: 4px dashed #ffffff;
  color: black;
  overflow: visible;
  text-align: center;
  height: 5px;
}

/* unvisited link */
a:link {
  color: white;
}

/* visited link */
a:visited {
  color: white;
}

/* mouse over link */
a:hover {
  color: white;
}

/* selected link */
a:active {
  color: white;
}

button {
  box-shadow: 5px 10px 20px rgba(0, 0, 0, 0.5);
}

.fat-questions {
  font-size: 55px;
}

.checkbox-before {
  text-indent: 0.3em;
  list-style-type: square;
  display: list-item;
  margin-left: 1em;
}

button.styled {
  border: 0;
  line-height: 1.5;
  padding: 10px 45px;
  border-radius: 10px;
  background-color: var(--action-button-background);
  box-shadow: 10px 10px 30px rgba(0, 0, 0, 0.5);
}

div.two-cols {
  display: flex;
}

div.column {
  flex: 50%;
}