/*  _________________ Header _________________ */

.entete {
  text-align: center;

  /* Décoration */
  color: var(--couleur-principale);
  font-family: var(--police-principal);
  background-color: #fff;
  box-shadow: 0px 0px 5px 2px rgba(0, 0, 0, 0.5);

  /* Flexbox */
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;

  /* Position */
  padding: 0px 20px;
  left: 0;
  position: fixed;
  right: 0;
  top: 0;

  z-index: 10;
}

.entete img {
  width: 100px;
}

.entete p {
  font-size: 35px;
}

/*  _________________ Bloc principal _________________ */

.bloc-principal {
  /* Définition */
  /* height: calc(100vh - 50px); */
  height: 100vh;

  /* FlexBox */
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.bloc-principal::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  /* Décoration */
  /* background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab); */
  /* background-size: 400% 400%; */
  /* animation: gradient 15s ease infinite; */
  background-image: url(../img/autres/headerSoleil.jpg);
  background-size: cover;
  background-position: center middle;
  /* filter: blur(2px); */
  /* filter: brightness(80%); */
  filter: contrast(30%);
  /* filter: grayscale(100%) ; */
  /* opacity: 0.5; */

  /* Animation */
  /* animation: gradient 15s ease infinite; */
}

@keyframes gradient {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.bloc-principal-conteneur {
  /* Définition */
  max-width: 1000px;
  color: white;
  padding: 1rem;

  /* FlexBox */
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.bloc-principal-conteneur p, h1 {
  /* Définition */
  font-size: 2rem;
}

.bloc-principal-conteneur nav {
  /* Définition */
  margin: 40px;
  margin-top: 50px;
}

.bloc-principal-conteneur .presentation {
  /* Définition */
  font-size: 1.1rem;
  line-height: 2;
  margin-top: 30px;
  text-align: center;
}

.bouton-menu-principal {
  color: #f8f9fa;
  border: 1px solid #f8f9fa;
  padding: 10px;
  /* box-shadow: 0px 0px 10px rgb(0 0 0); */
  transition: all 0.3s ease;
}

.bouton-menu-principal:hover {
  color: var(--couleur-principale);
  background-color: #f8f9fa;
  border-color: #f8f9fa;
}

.bouton-menu-principal:last-child {
  border-top-right-radius: 5px;
  border-bottom-right-radius: 5px;
}

.bouton-menu-principal:first-child {
  border-top-left-radius: 5px;
  border-bottom-left-radius: 5px;
}

@media screen and (max-height: 550px) {
  .bloc-principal-conteneur .presentation,
  nav {
    display: none;
  }
}

/*  _________________ Souris Scroll _________________ */

#container {
  text-align: center;
}
#mouse {
  margin-top: 2.5em;
  display: inline-block;
  width: 3.5em;
  height: 6em;
  background-color: rgba(255, 255, 255, 0);
  border-radius: 100px;
  border: 2px solid white;
}
#wheel {
  margin-top: 1em;
  margin-left: auto;
  margin-right: auto;
  width: 0.75em;
  height: 0.75em;
  background-color: white;
  border-radius: 50%;
}
.scroll2 {
  opacity: 0;
  margin-left: auto;
  margin-right: auto;
  width: 0px;
  height: 0px;
  border-left: 0.35em solid transparent;
  border-right: 0.35em solid transparent;
  border-top: 0.4em solid white;
  -webkit-animation: down2 1s infinite;
  animation: down2 1s infinite;
}
.scroll3 {
  opacity: 0;
  margin-left: auto;
  margin-right: auto;
  width: 0px;
  height: 0px;
  border-left: 0.35em solid transparent;
  border-right: 0.35em solid transparent;
  border-top: 0.4em solid white;
  -webkit-animation: down 1s infinite;
  animation: down 1s infinite;
}
.scroll {
  opacity: 0;
  margin-left: auto;
  margin-right: auto;
  width: 0px;
  height: 0px;
  border-left: 0.35em solid transparent;
  border-right: 0.35em solid transparent;
  border-top: 0.4em solid white;
  -webkit-animation: down3 1s infinite;
  animation: down3 1s infinite;
}
@-webkit-keyframes down {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
    transform: translateY(2.3em);
  }
}
@-webkit-keyframes down2 {
  40% {
    opacity: 0;
  }
  100% {
    opacity: 0.5;
    transform: translateY(2.3em);
  }
}
@-webkit-keyframes down3 {
  60% {
    opacity: 0;
  }
  100% {
    opacity: 0.2;
    transform: translateY(2.3em);
  }
}
@keyframes down {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
    transform: translateY(2.3em);
  }
}
@keyframes down2 {
  40% {
    opacity: 0;
  }
  100% {
    opacity: 0.5;
    transform: translateY(2.3em);
  }
}
@keyframes down3 {
  60% {
    opacity: 0;
  }
  100% {
    opacity: 0.2;
    transform: translateY(2.3em);
  }
}