:root {
    font-size: 1.125rem;
    --bg0: #FFF;
    --bg1: rgba(206,206,206,.5);
    --fg0: #000;
    --fg1: rgba(0,0,0,.5);
    --a0: #0076FF;
  }
  @media (prefers-color-scheme: dark) {
    :root {
      --bg0: #000;
      --bg1: rgba(206,206,206,.125);
      --fg0: #FFF;
      --fg1: rgba(206,206,206,.5);
      --a0: #0076FF;
    }
  }
  @media (min-width: 600px) { :root { font-size: 1.5rem; } }
  @media (min-width: 900px) { :root { font-size: 1.75rem; } }
  @media (min-width: 1200px) { :root { font-size: 2rem; } }
  *, *:before, *:after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  body, html {
    background: var(--bg0);
    color: var(--fg0);
  }
  body {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 100vw;
    min-height: 100dvh;
    font-family: system-ui, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';
  }
  .messages {
    overflow: auto;
    width: 100vw;
    max-height: 100vh;
    padding: 1rem .9rem;
  }
  .bubble {
    overflow: hidden;
    display: inline-block;
    margin: 0 0 .125rem 0;
    padding: .5rem .85rem;
    line-height: 1.25rem;
    border-radius: 1.25rem;
    transform-origin: 0 100%;
    vertical-align: middle;
    transition: border-radius .25s ease-out .075s;
  }
  .bubble.left.cornered {
    border-bottom-left-radius: 0;
  }
  .bubble.left {
    background: var(--bg1);
  }
  .bubble span {
    display: inline;
  }
  .bubble span.message {
    opacity: 0;
    line-height: 1.125;
  }
  .bubble a {
    color: var(--a0);
  }
  .bubble .loading {
    position: absolute;
    white-space: pre;
    font-size: 1.625rem;
    line-height: 1rem;
  }
  .bubble .loading b {
    display: inline-block;
    color: var(--fg1);
  }