/* les variables de 4 couleurs  */
:root {
  --jaune: #fc0;
  --orange: #f90;
  --gris: #393b4b;
  --grisclair: #555;
  --noir: black;
  --blanc: white;
  --liena: #112777;
  --lienh: #3d8dca;
}
/* var(--color) */
body {
  margin: 0;
  padding: 0;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  /* background-image: url(bg.png); */
  background-image: linear-gradient(to right, rgba(255, 204, 0, 0.7) 0%, rgba(255, 153, 0, 0.7) 100%);
  background-repeat: repeat;
  background-size: cover; /* occupe au mieux l'écran */
  background-position: center;
  height: 100vh;
  display: flex;
  flex-direction: column;
}
/* ------------------------------Menu---------------------------------*/
nav {
  /* grow shrink basis */
  flex-shrink: 0;

  background-color: var(--grisclair);
  border-bottom: 1px solid black;
  font-size: 19px;
  color: var(--blanc);
  text-align: right;
  padding: 20px;
}
.menu {
  list-style: none;
  padding: 0;
  margin: 0;
}
.menu li {
  display: inline;
  margin: 15px;
}
.menu a {
  text-decoration: none;
  color: var(--blanc);
}
.menu a:hover {
  color: var(--jaune);
}
.voir-menu,
.cacher-menu,
#check {
  display: none;
}
.menu li .on {
  color: var(--orange);
  font-weight: bold;
}
/* ------------------------------header---------------------------------*/
header {
  /* grow shrink basis */
  flex-shrink: 0;

  background-color: whitesmoke;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--noir);
}
header img {
  margin: 10px 0 10px 50px;
  transition: 1.5s;
  cursor: pointer;
}
header img:hover {
  transform: rotate(360deg);
  transition: 1.5s;
}
header h1 {
  margin: 40px 50px 40px 40px;
  letter-spacing: 1px;
  text-transform: uppercase;
  font-weight: 520;
  background-color: var(--jaune);
  padding: 30px;
  border-radius: 20px;
  color: var(--noir);
  text-align: center;
  box-shadow: 0 0 12px var(--noir);
  transition: 0.5s;
}

header h1 span {
  display: block;
  font-size: 16px;
  letter-spacing: 2px;
  margin-bottom: 20px;
}
header h1:hover {
  transform: scaleX(1.2);
  transform-origin: right top;
  transition: 0.5s;
  cursor: pointer;
}
/* ------------------------------Section---------------------------------*/
section {
  /* grow shrink basis */
  flex-shrink: 0;
}
section img {
  height: 100px;
  float: right;
  margin: 10px 20px;
}

section p {
  padding-top: 10px;
  text-align: justify;
}
/* ------------------------------Colonnes---------------------------------*/
#boite {
  /* grow shrink basis */
  flex: 1 0 auto;

  width: 100%;
  /* margin-top: 40px;
    margin-bottom: 40px; */
  /*column-count: 2;*/ /* par défaut auto */
  /*column-width: 600px;*/ /* par défaut auto  priorité au nombre de colonnes le plus petit */
  columns: 2 auto; /* auto 600px  super propriété */
  column-gap: 35px;
  column-rule: 1px solid var(--noir);
}
h3 {
  margin-left: 10px;
}
p {
  padding-left: 20px;
  padding-right: 20px;
  text-align: justify;
}
#boite h3 {
  margin: 5px 10px;
  padding: 0 10px;
  position: relative;
  display: inline-block;
  z-index: 1;
}
#boite h3::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  background-color: rgba(153, 153, 153, 0.5);
  width: 0;
  height: 0;
  opacity: 0;
  z-index: -1;
  transition: 0.5s;
}
#boite h3:hover::before {
  width: 100%;
  height: 100%;
  opacity: 1;
}
#boite h3::first-letter {
  font-size: 1.5em;
  font-weight: 600;
  color: #555;
  letter-spacing: 1px;
}
#boite p {
  padding-left: 40px;
}
a {
  text-decoration: none;
  color: #112777;
}
a:hover {
  color: #3d8dca;
}
/* ------------------------------footer---------------------------------*/
footer {
  flex-shrink: 0;
  background: var(--grisclair);
  margin-top: 40px;
  padding: 30px 0;
  color: var(--orange);
  text-align: center;
  border-top: 1px solid var(--noir);
  border-bottom: 1px solid var(--noir);
}
footer a {
  color: var(--orange);
}
footer a:hover {
  color: rgb(255, 51, 0);
}
/* ------------------------------Carte---------------------------------*/
#carte {
  margin: 0;
  padding: 10px;
}
#carte img {
  height: 40px;
  position: absolute;
  filter: drop-shadow(0px 6px 3px rgba(255, 255, 0, 0.6));
  z-index: 100;
  animation: spaceship 30s infinite linear;
}
/* ------------------------------Animation drone---------------------------------*/
@keyframes spaceship {
  0% {
    top: 10%;
    left: 50%;
    transform: rotate(0deg);
  }
  8% {
    top: 5%;
    left: 25%;
    transform: rotate(8deg);
  }
  16% {
    top: 10%;
    left: 10%;
    transform: rotate(16deg);
  }
  24% {
    top: 25%;
    left: 5%;
    transform: rotate(10deg);
  }
  32% {
    top: 50%;
    left: 10%;
    transform: rotate(5deg);
  }
  41% {
    top: 75%;
    left: 25%;
    transform: rotate(-5deg);
  }
  50% {
    top: 90%;
    left: 50%;
    transform: rotate(10deg);
  }
  58% {
    top: 90%;
    left: 75%;
    transform: rotate(15deg);
  }
  66% {
    top: 90%;
    left: 90%;
    transform: rotate(5deg);
  }
  74% {
    top: 75%;
    left: 95%;
    transform: rotate(-5deg);
  }
  83% {
    top: 50%;
    left: 90%;
    transform: rotate(-5deg);
  }
  92% {
    top: 25%;
    left: 75%;
    transform: rotate(-5deg);
  }
  100% {
    top: 10%;
    left: 50%;
    transform: rotate(-0deg);
  }
}

section iframe {
  width: 100%;
  height: 550px;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
/* ------------------------------Tableau de la page accueil---------------------------------*/
#conteneur {
  display: flex; /* 3 items : légende, tableau et texte*/
  flex-direction: column;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 17px;
  width: 90%;
  margin: auto;
}
#conteneur ul {
  padding: 0;
  margin: 0;
}
#conteneur li {
  padding-left: 20px;
  margin-left: 100px;
}
.legende {
  text-align: center;
  color: #999;
  margin-top: 50px;
}
#tableau {
  display: grid; /* tableau */
  grid-template-columns: repeat(3, 1fr); /* 3 colonnes*/
  box-shadow: 7px 7px 5px #999; /* ombre portée*/
}
.cellule {
  padding: 12px;
  border-left: 1px solid var(--noir);
  border-top: 1px solid var(--noir);
  text-align: left;
}
.bordDroit {
  border-right: 1px solid var(--noir);
  display: flex;
  align-items: center;
}
.bordBas {
  border-bottom: 1px solid var(--noir);
}
.entete {
  background-color: #000;
  color: var(--blanc);
  font-weight: bold;
  text-align: center;
}
.couleur1 {
  background-color: var(--jaune);
}
.couleur2 {
  background-color: var(--orange);
}
.bordRadiusG {
  border-top-left-radius: 10px;
}
.bordRadiusD {
  border-top-right-radius: 10px;
  justify-content: center;
}
/* ------------------------------Partie responsive---------------------------------*/
@media screen and (max-width: 900px) {
  .voir-menu,
  .cacher-menu {
    display: block;
    font-size: 30px;
    cursor: pointer;
    transition: 0.5s;
  }
  .voir-menu:hover,
  .cacher-menu:hover {
    color: var(--jaune);
    transition: 0.5s;
  }
  .menu {
    /* sortir de l'écran */
    position: fixed;
    top: 0;
    right: -100%;
    /* 100% d'une hauteur d'une unité d'écran */
    height: 100vh;
    background-color: var(--grisclair);
    /* toute la hauteur */
    width: 100%;
    padding-top: 80px;
    transition: 0.8s;
    z-index: 200;
  }
  #check:checked ~ .menu {
    /* identifiant check avec pseudo-class checked,
    on cible les enfants (~) qui suit la classe menu */
    right: 0;
  }
  .cacher-menu {
    position: absolute;
    top: 40px;
    right: 40px;
  }
  .menu li {
    display: block;
    text-align: center;
    margin-bottom: 35px;
    border-bottom: 1px solid whitesmoke;
  }
  header {
    justify-content: center;
    align-content: center;
    padding: 10px 0;
  }
  header h1 {
    /* width: 80%; */
    max-width: 550px;
    margin: 20px;
    padding: 10px;
    letter-spacing: 0px;
    font-size: 20px;
  }

  header img {
    display: none;
  }
  #boite {
    width: 90%;
    /* margin-top: 40px;
        margin-bottom: 40px; */
    /*column-count: 2;*/ /* par défaut auto */
    /*column-width: 600px;*/ /* par défaut auto  priorité au nombre de colonnes le plus petit */
    columns: 1; /* auto 600px  super propriété */
    column-gap: 0;
    column-rule: none;
  }
  #conteneur {
    font-size: 12px;
  }
  #tableau {
    grid-template-columns: repeat(2, 1fr);
  }
  #conteneur li {
    padding-left: 10px;
    margin-left: 50px;
  }
  .cacher {
    display: none;
  }
}