:root {
  --app-max-width: 430px;
  --page-bg-fallback: #050505;
  --page-bg-top: var(--page-bg-fallback);
  --page-bg-bottom: var(--page-bg-fallback);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background-color: var(--page-bg-top);
  background-image: linear-gradient(to bottom, var(--page-bg-top), var(--page-bg-bottom));
}

body {
  min-height: 100vh;
  margin: 0;
  display: flex;
  justify-content: center;
  background-color: var(--page-bg-bottom);
  background-image: linear-gradient(to bottom, var(--page-bg-top), var(--page-bg-bottom));
  color: #fff;
  font-family: "Open Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

@media (min-width: 431px) {
  body {
    background:
      linear-gradient(90deg, #080808, #1f1f1f 18%, #0d0d0d 50%, #202020 82%, #080808);
  }
}

.fixed-photo-bg {
  position: fixed;
  inset: 0 auto 0 50%;
  z-index: 0;
  width: min(100vw, var(--app-max-width));
  transform: translateX(-50%);
  pointer-events: none;
  overflow: hidden;
  background: var(--page-bg-fallback);
}

.fixed-photo-bg img {
  width: 100%;
  height: 100dvh;
  min-height: 100vh;
  display: block;
  object-fit: cover;
  object-position: center top;
}

.phone-shell {
  position: relative;
  z-index: 1;
  width: min(100vw, var(--app-max-width));
  min-height: 100vh;
  overflow: hidden;
  background: transparent;
  box-shadow: 0 0 80px rgba(0, 0, 0, .55);
}

.app-screen {
  position: relative;
  min-height: 100vh;
  background: transparent;
}

.screen-tint {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.app-screen > :not(.screen-tint) {
  position: relative;
  z-index: 1;
}

/* Animacion comun para revelar solo los primeros elementos indicados de cada pantalla. */
.fixture-intro-reveal-ready .fixture-intro-reveal {
  opacity: 0;
  transform: translate3d(0, 18px, 0);
  transition:
    opacity 460ms cubic-bezier(.22, .8, .2, 1),
    transform 320ms cubic-bezier(.22, .8, .2, 1);
  will-change: opacity, transform;
}

.fixture-intro-reveal-ready .fixture-intro-reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .fixture-intro-reveal-ready .fixture-intro-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}