*,
*::after,
*::before {
  box-sizing: border-box;
}

:root {
  font-size: 18px;
}

body {
  margin: 0;
  --color-text: black;
  --color-link: var(--color-primary);
  --color-link-hover: var(--color-accent);
  color: var(--color-text);
  background-color: var(--color-bg);
  font-family: termina, sans-serif;
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.demo-1 {
  --color-primary: black;
  --color-accent: #dc3f48;
  --color-bg: #c6c4b7;
}

.demo-2 {
  --color-primary: #e80c5c;
  --color-accent: #000;
  --color-bg: #d3d7e2;
}

.demo-3 {
  --color-primary: #61362d;
  --color-accent: black;
  /* the background of the scene */
  --color-bg: #e2d7b0;
}

/* Page Loader */
.js .loading::before,
.js .loading::after {
  content: '';
  position: fixed;
  z-index: 1000;
}

.js .loading::before {
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-bg);
}

.js .loading::after {
  top: 50%;
  left: 50%;
  width: 60px;
  height: 60px;
  margin: -30px 0 0 -30px;
  border-radius: 50%;
  opacity: 0.4;
  background: var(--color-link);
  animation: loaderAnim 0.7s linear infinite alternate forwards;
}

@keyframes loaderAnim {
  to {
    opacity: 1;
    transform: scale3d(0.5, 0.5, 1);
  }
}

a {
  text-decoration: none;
  color: var(--color-link);
  outline: none;
}

a:hover,
a:focus {
  color: var(--color-link-hover);
  outline: none;
}

.message {
  background: var(--color-text);
  color: var(--color-bg);
  padding: 1rem;
  text-align: center;
}

.frame {
  padding: 3rem 5vw;
  text-align: center;
  position: relative;
  z-index: 1000;
}

.frame__title {
  font-size: 1rem;
  margin: 0 0 0.5rem;
  font-weight: 600;
}

.frame__links {
  display: inline;
}

.frame__links a:not(:last-child),
.frame__demos a:not(:last-child) {
  margin-right: 1rem;
}

.frame__demos {
  margin: 1rem 0;
}

.frame__demo--current,
.frame__demo--current:hover {
  color: var(--color-accent);
}

.frame__prev,
.frame__next {
  pointer-events: auto;
  height: 1.8rem;
  fill: var(--color-primary);
  opacity: 0.6;
  cursor: pointer;
  transition: all 0.1s ease;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}
.frame__prev:active,
.frame__next:active {
  transform: scale(1.1);
  transition: none;
}

.content {
  display: grid;
  grid-template-columns: 100%;
  grid-template-rows: 100%;
  width: 100vw;
  height: calc(100vh - 13rem);
  position: relative;
  align-items: center;
  justify-items: center;
}

.content__app {
  grid-area: 1 / 1 / 2 / 2;
  position: relative;
}

.content__title {
  position: relative;
  font-size: 5.5vw;
  pointer-events: none;
  max-width: 65vw;
  max-height: 100vh;
  overflow: hidden;
  line-height: 1;
  grid-area: 1 / 1 / 2 / 2;
  text-align: center;
  -webkit-text-stroke: 1px #afada3;
  text-stroke: 1px #afada3;
  -webkit-text-fill-color: transparent;
  text-fill-color: transparent;
  color: transparent;
  text-transform: lowercase;
}

.demo-2 .content__title {
  -webkit-text-stroke: 1px #eaecef;
  text-stroke: 1px #eaecef;
}

.demo-3 .content__title {
  -webkit-text-stroke: 1px #cec298;
  text-stroke: 1px #cec298;
}

@media screen and (min-width: 53em) {
  main {
    overflow: hidden;
  }
  .message {
    display: none;
  }
  .frame {
    position: fixed;
    text-align: left;
    z-index: 100;
    top: 0;
    left: 0;
    display: grid;
    align-content: space-between;
    width: 100%;
    max-width: none;
    height: 100vh;
    padding: 2rem 2.8rem;
    pointer-events: none;
    grid-template-columns: 50% 50%;
    grid-template-rows: auto auto auto;
    grid-template-areas:
      'title ...'
      'prev next'
      'links demos';
  }
  .frame__title-wrap {
    grid-area: title;
  }
  .frame__title {
    color: black;
  }
  .frame__tagline {
    color: var(--color-primary);
    margin: 0;
    opacity: 0.5;
  }
  .frame__demos {
    margin: 0;
    grid-area: demos;
    justify-self: end;
  }
  .frame__links {
    grid-area: links;
    padding: 0;
  }

  .frame__prev {
    grid-area: prev;
  }
  .frame__next {
    grid-area: next;
    justify-self: end;
  }
  .frame__prev:hover,
  .frame__next:hover {
    transform: scale(1.2);
  }

  .frame a {
    pointer-events: auto;
  }
  .content {
    height: 100vh;
  }
}

@media screen and (max-width: 53em) {
  /* position the next and prev absolutely only on mobile */
  .frame__prev,
  .frame__next {
    position: absolute;
    bottom: calc((12rem - 100vh) / 2);
  }
  .frame__prev {
    left: 0.75rem;
  }
  .frame__next {
    right: 0.75rem;
  }
}