@import url("https://fonts.googleapis.com/css?family=Roboto:300,400&display=swap");

body {
  margin: 0;
  padding: 0;
}

.cover-page {
  background: #eceff1;
  font-family: "Roboto", "Open Sans", "SF UI Text", Arial, sans-serif;
  font-size: 16px;
  height: 100vh;
  text-align: center;
  width: 100%;
  z-index: 10000;

  -webkit-touch-callout: none; /* iOS Safari */
  -webkit-user-select: none; /* Safari */
  -khtml-user-select: none; /* Konqueror HTML */
  -moz-user-select: none; /* Firefox */
  -ms-user-select: none; /* Internet Explorer/Edge */
  user-select: none;
}

.cover-page-content {
  color: #607d8b;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.cover-page h1 {
  color: #455a64;
  font-size: 32px;
  font-weight: 200;
  margin: 0.25em 0;
  text-shadow: 0 1px 1px rgba(0, 0, 0, 0.3);
}

.button-bar {
  display: flex;
  flex-direction: row;
  justify-content: center;
  margin: 1.75rem 0;
}

.button-bar .button {
  background-color: #037de8;
  border: 1px solid #037de8;
  border-radius: 0.25rem;
  color: white;
  display: inline-block;
  font-size: 1rem;
  line-height: 1.75rem;
  margin: 0 0.4375rem;
  padding: 0.4375rem 1.375rem;
  text-align: center;
  text-decoration: none;
  user-select: none;
  vertical-align: middle;

  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.45);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.6);

  transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out,
    border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out,
    transform 0.15s ease-in-out;
}

.button-bar .button:hover {
  background-color: #036ecc;
  border-color: #036ecc;
  text-decoration: none;
}

.button-bar .button:active {
  background-color: #0464b9;
  border-color: #0464b9;
  box-shadow: 0 0 2px rgba(0, 0, 0, 0.6);
  text-decoration: none;
  transform: translateY(1px);
}

.button-bar .button-disabled {
  opacity: 0.5;
  filter: grayscale(1);
}