style.scss

:root {
  font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
  font-weight: 400;

  color-scheme: light dark;
  color: rgba(255, 255, 255, 0.87);
  background-color: #242424;

  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-text-size-adjust: 100%;
}

* {
  box-sizing: border-box;
}

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

#app {
  width: 100%;
  height: 100%;
  padding: 0;
  overflow: hidden;
  font-size: 0.65em;
  line-height: 100%;
  cursor: pointer;
  text-align: justify;
  text-justify: inter-character;
  white-space: nowrap;
  letter-spacing: 0px;
}

.tools {
  position: absolute;
  top: 0;
  padding: 1rem;
  text-align: right;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  button {
    border: 0;
    margin: 0.15rem;
  }

  .slider {
    display: flex;
    align-items: center;
    font-size: 1rem;
    margin: 0 0.5rem;
  }

  button,
  .slider {
    width: auto;
    padding: 0.66rem;
    border-radius: 6px;
    background-color: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(4px);
    cursor: pointer;
    &.active {
      background-color: rgba(255, 255, 255, 0.1);
    }
  }
}
@media screen and (max-width: 440px) {
  #app {
    user-select: none;
  }
  .tools {
    flex-wrap: wrap;
    justify-content: space-between;
    .slider {
      order: 1;
      margin: 0 0.15rem;
      margin-bottom: 0.25rem;
    }
    .buttons {
      order: 2;
    }
  }
}