body {
  font-family: Arial, sans-serif;
  background-color: #111;
  color: #fff;
  margin: 0;
  padding: 0;
}

header {
  background-color: #222;
  text-align: center;
  padding: 20px;
  border-bottom: 3px solid #00bfff;
}

h1 {
  color: #00bfff;
}

.retour {
  display: inline-block;
  margin-top: 10px;
  color: #00bfff;
  text-decoration: none;
}

.manga-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  padding: 20px;
}

.manga {
  margin: 15px;
  text-decoration: none;
  color: #fff;
  text-align: center;
}

.manga img {
  width: 200px;
  height: 300px;
  border-radius: 10px;
  transition: transform 0.3s;
}

.manga:hover img {
  transform: scale(1.05);
}

.chapitre img {
  display: block;
  max-width: 80%;
  margin: 20px auto;
}