body {
  font-family: "Segoe UI", Arial, sans-serif;
  background-color: #f5f7fa;
  color: #333;
  margin: 0;
  padding: 0;
}

/* --- HEADER --- */
header {
  background-color: #2b4eff;
  color: white;
  text-align: center;
  padding: 20px 0;
}

header h1 {
  margin: 0;
  font-size: 26px;
  letter-spacing: 1px;
}

nav ul {
  list-style: none;
  padding: 0;
  margin-top: 10px;
}

nav ul li {
  display: inline;
  margin: 0 10px;
}

nav ul li a {
  color: white;
  text-decoration: none;
  font-weight: bold;
}

nav ul li a:hover {
  text-decoration: underline;
}

/* --- SECTION EN-TÊTE AVEC PHOTO --- */
.entete {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  background-color: white;
  padding: 30px 20px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  margin: 20px auto;
  max-width: 900px;
  border-radius: 10px;
}

.entete img {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  margin-right: 20px;
  border: 3px solid #2b4eff;
}

.intro-text {
  max-width: 500px;
}

.intro-text h2 {
  color: #2b4eff;
  font-size: 22px;
  margin-bottom: 10px;
}

/* --- TITRES DES SECTIONS --- */
h3 {
  color: #2b4eff;
  margin-top: 40px;
  text-align: center;
}

/* --- CONTENU DES SECTIONS --- */
section {
  background: white;
  margin: 20px auto;
  padding: 20px;
  max-width: 900px;
  border-radius: 10px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}

ul {
  list-style-type: disc;
  padding-left: 40px;
}

ul li {
  margin-bottom: 8px;
}

/* --- FORMULAIRE DE CONTACT --- */
form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

label {
  font-weight: bold;
  margin-bottom: 5px;
}

input, select, textarea {
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 5px;
  font-family: inherit;
  font-size: 14px;
}

button, input[type="submit"] {
  background-color: #2b4eff;
  color: white;
  border: none;
  padding: 10px;
  border-radius: 5px;
  cursor: pointer;
  font-weight: bold;
}

button:hover, input[type="submit"]:hover {
  background-color: #1a33cc;
}

/* --- PIED DE PAGE --- */
footer {
  text-align: center;
  color: #666;
  font-size: 14px;
  margin: 30px 0;
}

/* --- RESPONSIVE --- */
@media (max-width: 600px) {
  .entete {
    flex-direction: column;
    text-align: center;
  }

  .entete img {
    margin: 0 0 15px 0;
  }
}