* {
  padding: 0;
  margin: 0;
}
body {
  background: linear-gradient(#01012e, #240019);
  height: 100%;
  font-family: system-ui;
}

section {
  background: url("image/stars1.webp");
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
ul li a {
  color: #fff;
  text-decoration: none;
  font-size: 20px;
  font-weight: 500;
  letter-spacing: 4px;
  background: darkblue;
  padding: 6px 50px;
  border-radius: 20px;
  display: inline-block;
  text-transform: uppercase;
  width: 150px;
  transition: 0.5s;
}

ul:hover li a {
  opacity: 0;
}

ul li a:hover {
  transform: scale(1.5);
  background: darkmagenta;
  opacity: 1;
}
ul li {
  list-style: none;
  margin: 30px 10px;
}
ul {
  text-align: center;
}

header {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  list-style: none;
}



h1 {
  text-align: center;
  font-size: 3rem;
  color: darkmagenta;
  opacity: 0.8;
  margin-top: 32px;
  margin-bottom: 32px;
  text-transform: uppercase;
  animation: bounce 2s ease infinite;
}
h3 {
  font-size: 1.5em;
  width: 50%;
  margin-left: 10%;
  margin-top: 32px;
  margin-bottom: 32px;
  background-color: rgba(255, 255, 255, 0.1);
  color: darkmagenta;
  border-radius: 50px;
  padding: 20px;
  animation: ani-left 2s;
}
h4 {
  text-align: center;
  font-size: 1.1rem;
  color: #fff;
  opacity: 0.8;
  margin-top: 200px;
  margin-bottom: 200px;
  font-family: Lexend;
}
p {
  color: #ffff;
  text-align: justify;
  padding: 30px;
  margin-right: 50px;
  margin-left: 20%;
  font-family: "Josefin Sans", sans-serif;
  font-size: 1.4em;
  text-align: left;
  width: 60%;
  background-color: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.8);
  border-radius: 30px;
  animation: ani-right 2s;
}

.partie {
  display: flex;
  justify-content: space-between;
  padding: 10px 50px;
  align-items: center;
}
.image {
  border-radius: 20px;
  width: 500px;
}

.list {
  display: flex;
  justify-content: center;
  align-items: center;
}

.left {
  animation: ani-left;
  animation-duration: 2s;
}
.right {
  animation: ani-right;
  animation-duration: 2s;
}
.ani {
  backface-visibility: visible !important;
  animation: flip 2s ;
}

@keyframes ani-left {
  0% {
    opacity: 0;
    transform: translateX(-2000px);
  }
  60% {
    opacity: 1;
    transform: translateX(-30px);
  }
  80% {
    transform: translateX(10px);
  }
  100% {
    transform: translateX(0);
  }
}

@keyframes ani-right {
  0% {
    opacity: 0;
    transform: translateX(2000px);
  }
  60% {
    opacity: 1;
    transform: translateX(-30px);
  }
  80% {
    transform: translateX(10px);
  }
  100% {
    transform: translateX(0);
  }
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-30px);
  }
  60% {
    transform: translateY(-15px);
  }
}

@keyframes flip {
  0% {
    transform: perspective(400px) rotateY(0);
    animation-timing-function: ease-out;
  }
  40% {
    transform: perspective(400px) translateZ(150px) rotateY(170deg);
    animation-timing-function: ease-out;
  }
  50% {
    transform: perspective(400px) translateZ(150px) rotateY(190deg) scale(1);
    animation-timing-function: ease-in;
  }
  80% {
    transform: perspective(400px) rotateY(360deg) scale(0.95);
    animation-timing-function: ease-in;
  }
  100% {
    transform: perspective(400px) scale(1);
    animation-timing-function: ease-in;
  }
}