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

body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #000;
  background-color: #fff;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

.header {
  background: #f8f8f8;
  color: #000;
  text-align: center;
  padding: 2rem 0 1rem;
  position: relative;
}

.header-container {
  display: flex;
  flex-direction: column; /* Ajustement pour petits écrans */
  align-items: center;
}

.logo {
  max-width: 150px; /* Taille augmentée */
  margin-bottom: 1rem; /* Ajout d'espace sous le logo */
}

.tagline {
  color: #333;
  margin-top: 0.5rem;
}

.navbar {
  background: #ddd;
  padding: 1rem 0;
  text-align: center;
}

.navbar ul {
  list-style: none;
}

.navbar li {
  display: inline;
  margin: 0 15px;
}

.navbar a {
  color: #000;
  text-decoration: none;
}

.navbar a:hover {
  color: #555;
}

.section {
  padding: 2rem 0;
}

.section h2 {
  text-align: center;
  color: #000;
  margin-bottom: 1rem;
}

.section ul {
  list-style: none;
  padding: 0;
}

.section ul li {
  background: #f8f8f8;
  color: #000;
  margin: 10px 0;
  padding: 10px;
  border-radius: 5px;
}

form label {
  display: block;
  margin: 10px 0 5px;
  color: #000;
}

form input,
form textarea {
  width: 100%;
  padding: 10px;
  margin-bottom: 15px;
  border: 1px solid #ccc;
  border-radius: 5px;
}

form button {
  background: #000;
  color: #fff;
  border: none;
  padding: 10px 20px;
  cursor: pointer;
  border-radius: 5px;
}

form button:hover {
  background: #555;
}

.footer {
  background: #f8f8f8;
  color: #000;
  text-align: center;
  padding: 1rem 0;
  margin-top: 2rem;
}

/* Media Query pour écrans plus petits */
@media (max-width: 768px) {
  .header-container {
    flex-direction: column; /* Organisation verticale */
    align-items: center;
    text-align: center;
  }

  .logo {
    margin: 0 auto 1rem; /* Centrage et espace */
  }

  .navbar li {
    display: block;
    margin: 10px 0;
  }
}