* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: 'Helvetica Neue', sans-serif;
  background-color: #111111;
}

.page {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.page.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}