body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  width: 100vw;
  font-family: 'Fira Mono', 'Consolas', 'Menlo', 'Monaco', monospace;
  background: #000;
  color: #fff;
  overflow: hidden;
}

.centered {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  width: 100vw;
  z-index: 2;
}

.top-text {
  font-size: 1.1rem;
  margin-bottom: 2.2em;
  letter-spacing: 0.02em;
}

.middle-text {
  font-size: 1rem;
  margin-bottom: 2.2em;
  letter-spacing: 0.02em;
}

.bottom-btn {
  font-family: inherit;
  font-size: 1rem;
  color: #fff;
  background: none;
  border: 1px solid #fff;
  border-radius: 0;
  padding: 0.5em 1.5em;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  margin-top: 0.5em;
  outline: none;
}
.bottom-btn:hover, .bottom-btn:focus {
  background: #fff;
  color: #000;
}

#bg {
  position: fixed;
  top: 0; left: 0; width: 100vw; height: 100vh;
  z-index: 1;
  pointer-events: none;
}