.main {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;

  background-color: #000;
  color: #fff;

  > canvas {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
  }

  .loading {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    display: grid;
    place-content: center;
    font-size: 1000%;
  }

  > header {
    top: 0;
    bottom: auto;
  }

  > footer {
    top: auto;
    bottom: 0;
  }

  > header,
  > footer {
    container-type: inline-size;
    position: absolute;
    left: 0;
    width: 100%;
    box-sizing: border-box;
    padding: 1em;
    margin: 0;
    display: flex;
    flex-wrap: nowrap;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    gap: 0;

    > div.flex {
      display: flex;
      flex-wrap: nowrap;
      flex-direction: row;
      justify-content: flex-start;
      align-items: center;
      gap: 0.5em;
    }

    button {
      font: inherit;
      width: 2.5em;
      height: 2.5em;
      display: grid;
      place-items: center;
      flex: 0 0 auto;
      cursor: pointer;
      color: #fff;
      border: 2px solid #000;
      border-radius: 2px;
      background: #3a3a3a;
      margin: 0;
      box-sizing: border-box;
      transition: all 0.3s;

      &:hover {
        background-color: #adf;
        color: #000;
      }
    }

    .zoomSlider {
      color: #fff;
      flex: 0 0 auto;
      width: 240px;
    }
  }
}