* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}
body {
  background: #0a0a23;
  color: #fff;
}
.container {
  width: 100%;
  min-height: 100vh;
  background: url(img/background.jpg) center/cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.carte {
  width: 100%;
  max-width: 640px;
  text-align: center;
  padding: 50px 35px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 20px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(10px);
}
.carte img {
  width: 140px;
  border-radius: 50%;
}
.carte h2 {
  font-size: 36px;
  margin: 20px 0;
}
.carte p {
  font-size: 18px;
  margin-bottom: 20px;
}
.reseau img {
  width: 40px;
  border-radius: 50%;
  margin: 10px 5px;
  transition: background 0.5s;
}
.reseau img:hover {
  background: white;
}
.bouton {
  font-size: 16px;
  font-weight: 600;
  background: #fff;
  color: #0a0a23;
  padding: 8px 20px;
  border-radius: 30px;
  margin: 5px;
  display: inline-block;
  border: none;
  cursor: pointer;
}
.bouton:hover {
  background: #87bcd4;
  color: #fff;
}
.menu-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 20px;
  background: #0a0a23;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 99;
}
.menu-toggle {
  display: none;
  font-size: 28px;
  background: transparent;
  color: #fff;
  border: none;
  cursor: pointer;
}
.section {
  display: none;
  margin-top: 20px;
}
.ligne {
  display: flex;
  align-items: center;
  gap: 15px;
  margin: 20px 0;
  text-align: left;
}
.ligne img {
  width: 70px;
  border-radius: 10px;
}
.ligne span {
  font-size: 18px;
  line-height: 1.4;
  color: #fff;
  max-width: 300px;
}
ul {
  list-style-type: none;
  margin: 20px 0;
}
ul li {
  margin-bottom: 10px;
  font-size: 18px;
}
a {
  color: #87bcd4;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
.fade-in {
  animation: fadeIn 1s ease-in;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }
  .nav-buttons {
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 10px;
  }
  .menu-nav.show .nav-buttons {
    display: flex;
  }
  .ligne {
    flex-direction: column;
    text-align: center;
  }
  .ligne img {
    width: 60px;
  }
  .ligne span {
    max-width: 100%;
  }
}
@media (max-width: 480px) {
  .carte {
    padding: 30px 20px;
  }
  .carte h2 {
    font-size: 28px;
  }
  .carte p, ul li {
    font-size: 16px;
  }
}