:root {
    color-scheme: dark;
}

:focus-visible {
    outline: 0;
}

html, body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden;
}

.centered {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    gap: 1em;
    font-family: sans-serif;
    font-weight: bold;
    font-size: large;
}

body > div:not(:last-child) {
    display: none;
}

/* HTML: <div class="loader"></div> */
.loader {
  width: 85px;
  height: 25px;
  --g1:conic-gradient(from  90deg at left   3px top   3px,#0000 90deg,#fff 0);
  --g2:conic-gradient(from -90deg at bottom 3px right 3px,#0000 90deg,#fff 0);
  background:var(--g1),var(--g1),var(--g1), var(--g2),var(--g2),var(--g2);
  background-position: left,center,right;
  background-repeat: no-repeat;
  animation: l8 1s infinite;
}
@keyframes l8 {
  0%   {background-size:25px 100%,25px 100%,25px 100%}
  20%  {background-size:25px 50% ,25px 100%,25px 100%}
  40%  {background-size:25px 50% ,25px 50% ,25px 100%}
  60%  {background-size:25px 100%,25px 50% ,25px 50% }
  80%  {background-size:25px 100%,25px 100%,25px 50% }
  100% {background-size:25px 100%,25px 100%,25px 100%}
}