/* ========================================
   INTRO ONLY
   Dépend de main.css pour :
   - @font-face
   - variables globales de typo
   - reset global
======================================== */
body.pre-intro #content,
body.pre-intro #home,
body.pre-intro .site-header,
body.pre-intro .page-bg {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

body.pre-intro #intro {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

body.has-intro {
  --intro-bg: #3a38a4;
  --intro-bg-home: #F5EEE4;
  --intro-gold: #c9a86a;
  --intro-brand: #3a38a4;

  background: var(--intro-bg);
  color: #fff;
  overflow: hidden;
  transition: background 900ms ease;
}

/* INTRO overlay */
#intro.intro {
  position: fixed;
  inset: 0;
  z-index: 2147483647;
  display: grid;
  place-items: center;
  background: var(--intro-bg);
  isolation: isolate;
  transition: background 900ms ease;
}

#intro.intro.is-home {
  background: var(--intro-bg-home);
}

.logo.is-floating {
  position: fixed !important;
  left: 50%;
  top: 50%;
  z-index: 2147483647;
  pointer-events: none;
}

/* STAGE (3D) */
#intro .stage {
  position: relative;
  width: min(1100px, 92vw);
  height: min(700px, 78vh);
  perspective: 900px;
  perspective-origin: 50% 45%;
  z-index: 2;
}

/* TUNNEL */
#intro .tunnel {
  position: absolute;
  inset: 0;
  z-index: 1;
  opacity: 1;
  transform-style: preserve-3d;
  transition: opacity 700ms ease;
}

/* TEXTE */
#intro .introText {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 4;
  transform: translate(-50%, -50%) translateZ(0);
  transform-style: preserve-3d;
  will-change: transform, opacity;
  opacity: 1;

  font-family: var(--font-eros);
  font-size: 94px;
  line-height: 90px;
  font-weight: 700;
  text-transform: uppercase;
  text-align: center;
  color: var(--intro-gold);

  text-shadow:
    4px 0 var(--intro-bg),
    -4px 0 var(--intro-bg),
    0 4px var(--intro-bg),
    0 -4px var(--intro-bg),
    2px 2px var(--intro-bg),
    -2px -3px var(--intro-bg),
    2px -2px var(--intro-bg),
    -2px 2px var(--intro-bg);

  transition: opacity 350ms ease;
}

@media (max-width: 600px) {
  #intro .introText {
    font-size: 74px;
    line-height: 70px;
  }
}

#intro .introText__line {
  display: block;
  overflow: hidden;
}

#intro .introText__word {
  display: block;
  opacity: 0;
  transform: translateY(110%);
  will-change: transform, opacity;
}

body.is-intro-ready #intro .introText__line:nth-child(1) .introText__word {
  animation: intro-text-reveal 700ms cubic-bezier(.22, .61, .36, 1) forwards;
  animation-delay: 900ms;
}

body.is-intro-ready #intro .introText__line:nth-child(2) .introText__word {
  animation: intro-text-reveal 700ms cubic-bezier(.22, .61, .36, 1) forwards;
  animation-delay: 1100ms;
}

@keyframes intro-text-reveal {
  from {
    opacity: 0;
    transform: translateY(110%);
  }

  to {
    opacity: 1;
    transform: translateY(0%);
  }
}

body.is-traveling #intro .introText {
  opacity: 0;
}

/* LAYERS */
#intro .layer {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  transform-style: preserve-3d;
  will-change: transform, opacity, filter;
  transition: opacity 700ms ease;
}

#intro .layer svg {
  width: min(900px, 85vw);
  height: auto;
}

#intro .layer path,
#intro .layer line,
#intro .layer polyline,
#intro .layer polygon,
#intro .layer circle,
#intro .layer rect {
  fill: none;
  stroke: var(--intro-gold);
}

/* LOGO */
#intro .logo {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 5;
  opacity: 0;
  pointer-events: none;
  will-change: transform, opacity;
  transform: translate(-50%, -50%) scale(.22) translateZ(-800px);
  transition: none;
}

#intro .logo svg {
  display: block;
  width: 76px;
  height: 119px;
}

#intro .logo svg * {
  transition: fill 600ms ease, stroke 600ms ease;
}

#intro.is-home .logo svg * {
  fill: var(--intro-brand);
  stroke: var(--intro-brand);
}

#intro .logo.is-floating svg *,
.logo.is-floating svg * {
  fill: var(--intro-brand);
  stroke: var(--intro-brand);
}

/* BOUTON */
#intro .enter {
  position: absolute;
  bottom: 28vh;
  z-index: 6;

  padding: 14px 22px;
  border: 1px solid var(--intro-gold);
  border-radius: 999px;
  background: transparent;
  cursor: pointer;

  opacity: 0;
  transform: translateY(18px);

  font-family: var(--font-hagrid);
  font-size: 16px;
  line-height: 26px;
  font-weight: 400;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--intro-gold);

  transition:
    transform .4s ease,
    box-shadow .4s ease,
    border-color .3s ease,
    background-color .4s ease,
    color .4s ease,
    opacity .5s ease;
}

@media (max-width: 600px) {
  #intro .enter {
    bottom: 20vh;
  }
}

body.is-intro-ready #intro .enter {
  animation: intro-enter-fade-up 700ms cubic-bezier(.22, .61, .36, 1) forwards;
  animation-delay: 1450ms;
}

@keyframes intro-enter-fade-up {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

#intro .enter:hover {
  transform: translateY(-2px);
  background: var(--intro-gold);
  color: var(--intro-bg);
  box-shadow: 0 6px 18px color-mix(in srgb, var(--intro-gold) 20%, transparent);
}

#intro .enter.is-hidden {
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: opacity 250ms ease, transform 250ms ease;
}

/* ETATS GLOBAUX DE L’INTRO */
body.is-fade-arches #intro .tunnel {
  opacity: 0;
}

body.is-tunnel-gone #intro .tunnel {
  opacity: 0 !important;
  visibility: hidden;
  pointer-events: none;
}

/* HOME REVEAL
   #home n’est pas dans #intro, donc on le cible globalement */
#home.home {
  position: relative;
  /* min-height: 100vh;
  padding: 120px 8vw 80px;
  background: var(--intro-bg-home); */
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 900ms ease, transform 900ms ease;
}

#home.home.is-visible {
  opacity: 1;
  transform: translateY(0);
}