* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

nav {
  background-color: #333;
  position: fixed;
  width: 100%;
  top: 0;
}

.menu {
  display: flex;
  flex-wrap: wrap;
  list-style-type: none;
  justify-content: center;
}

.menu li {
  width: 150px;
}

.menu a {
  display: block;
  color: white;
  text-decoration: none;
  padding: 15px 0;
  text-align: center;
  transition: all 0.3s ease;
}

.menu a:hover {
  background-color: #555;
  color: #ffd700;
}

section {
  min-height: 100vh;
  padding: 80px 20px 20px;
}

section:nth-child(odd) {
  background-color: #f5f5f5;
}

h2 {
  margin-bottom: 20px;
}

/* Scroll doux */
html {
  scroll-behavior: smooth;
}

/* Styles responsives */
@media (max-width: 768px) {
  .menu li {
    width: 100%;
  }
}