@charset "utf-8";
@font-face {
  font-family: system-font;
  font-style: normal;
  font-weight: 400;
  src: local(".SFNSText-Regular"), local(".HelveticaNeueDeskInterface-Regular"), local(".LucidaGrandeUI"), local("Segoe UI"), local("Ubuntu"), local("Roboto-Regular"), local("DroidSans"), local("Tahoma");
}
@font-face {
  font-family: system-font;
  font-style: normal;
  font-weight: 700;
  src: local(".SFNSText-Bold"), local(".HelveticaNeueDeskInterface-Bold"), local(".LucidaGrandeUI"), local("Segoe UI Bold"), local("Ubuntu Bold"), local("Roboto-Bold"), local("DroidSans-Bold"), local("Tahoma Bold");
}
html, body {
  width:100%;
  margin: 0;
  padding: 0;
  text-align: center;
  font-family: system-font;
  color: #111;
}
button {
  font-family: system-font;
  font-size: .9em;
  margin-top: .5em;
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid #76c9eb;
  background: #96d2eb;
}
button:hover {
  cursor: pointer;
  outline: 0;
  box-shadow: inset 0 3px 5px rgba(0,0,0,.125);
  border: 1px solid #51b4db;
  background: #76c9eb;
}
h1 {
  font-size: 1.5em;
  margin: .5em 0;
}
h2 {
  font-size: 1.3em;
  margin: .5em 0;
}
.section {
  margin: 1em auto 0 auto;
}
.mode, .message {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 10;
  display: flex;
  justify-content: center;
  align-items: center;
  background: rgba(0, 0, 0, .7);
  transition: opacity .2s ease-in;
  box-shadow: 0 3px 9px rgba(0,0,0,.5);
}
.mode-chooser, .message-body {
  flex: 0 1 auto;
  text-align: left;
  background: white;
  border-radius: 0.5em;
  margin: 0.5em;
  padding: 0.5em 1em 1em 1em;
  max-width: 30em;
}
.invisible {
  opacity: 0;
}
.hidden {
  display: none;
}
.footer {
  font-size: .8em;
}