:root {
  --col-tint-color: #c3228e;

  --color-background: #fff;
  --color-border: rgba(60, 60, 60, 0.12);
  --color-heading: #222;
  --color-text: rgb(70, 88, 106);
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-background: #181818;
    --color-border: rgba(84, 84, 84, 0.48);
    --color-heading: #f8f8f8;
    --color-text: rgba(235, 235, 235, 0.64);
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  font-weight: normal;
}

html,
body {
  height: 100%;
}

html {
  min-height: 100vh;
  color: var(--color-text);
  background: var(--color-background);
  line-height: 1.6;
  font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
  font-size: 15px;
  text-rendering: optimizeLegibility;
}

body {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem;
  font-weight: normal;
}

h3 {
  font-size: 1.2rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
  color: var(--color-heading);
}

a {
  text-decoration: none;
  color: var(--col-tint-color);
  transition: 0.4s;

  &:hover {
    background-color: rgba(0, 189, 126, 0.2);
  }
}

header {
  line-height: 1.5;
  max-height: 100vh;

  & nav {
    width: 100%;
    font-size: 12px;
    text-align: center;
    margin-top: 2rem;

    & a {
      display: inline-block;
      padding: 0 1rem;
      border-left: 1px solid var(--color-border);

      &:first-of-type {
        border: 0;
      }

      &.active {
        color: var(--color-text);
        &:hover {
          background-color: transparent;
        }
      }
    }
  }

  #logo {
    --size: 125px;
    display: block;
    margin: 0 auto 2rem;
    line-height: 100%;
    font-size: var(--size);
    width: var(--size);
    height: var(--size);
  }
}

#demo {
  margin-block: 2rem;

  & canvas {
    cursor: pointer;
    max-width: 100%;
  }

  #info {
    display: flex;
    justify-content: space-between;

    #framerateView {
      text-align: right;
    }
  }
}

ul {
  list-style-type: none;
  max-height: 100%;
  overflow-y: auto;
  padding: 0;

  & li {
    margin-bottom: 2rem;

    &:first-child {
      margin-top: 2rem;
    }
  }
}

i.ext-lnk {
  display: inline-block;
  width: 0.75em;
  height: 0.75em;
  background-color: currentColor;
  margin-inline: 0.2em;
  clip-path: polygon(
    50% 12.5%,
    50% 0%,
    100% 0%,
    100% 50%,
    87.5% 50%,
    87.5% 22.5%,
    47.5% 62.5%,
    37.5% 62.5%,
    37.5% 52.5%,
    77.5% 12.5%,
    37.5% 12.5%,
    37.5% 25%,
    12.5% 25%,
    12.5% 87.5%,
    75% 87.5%,
    75% 62.5%,
    87.5% 62.5%,
    87.5% 100%,
    0% 100%,
    0% 12.5%
  );
}

@media (min-width: 1024px) {
  html {
    display: flex;
    place-items: center;
  }

  body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    padding: 0 2rem;
  }

  #demo {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }

  header {
    display: flex;
    place-items: center;
    padding-right: 80px;

    .wrapper {
      display: flex;
      place-items: flex-start;
      flex-wrap: wrap;

      & nav {
        margin-left: -1rem;
        font-size: 1rem;

        padding: 1rem 0;
        margin-top: 1rem;
      }
    }

    #logo {
      margin: 0 2rem 0 0;
    }
  }

  section {
    display: flex;
    place-items: center;
    max-height: 100%;
    overflow: hidden;
  }
}

@media (any-hover: hover) {
  .phone {
    display: none;
  }
}

@media (any-hover: none) {
  .desktop {
    display: none;
  }
}