body {
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', sans-serif;
  background-color: #f4f4f4;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  position: relative;
  text-align: center;
}

h1 {
  font-size: 3rem;
  margin: 80px 0 20px;
  color: #333;
}

.main-image {
  max-width: 90%;
  max-height: 70vh;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Bouton retour */
.back-button {
  position: absolute;
  top: 20px;
  right: 20px;
  background-color: #007bff;
  color: white;
  padding: 10px 15px;
  text-decoration: none;
  border-radius: 6px;
  font-weight: bold;
  transition: background-color 0.3s ease;
}

.back-button:hover {
  background-color: #0056b3;
}


.back-button {
  position: absolute;
  top: 20px;
  left: 20px; /* 🡐 Changement ici */
  background-color: #007bff;
  color: white;
  padding: 10px 15px;
  text-decoration: none;
  border-radius: 6px;
  font-weight: bold;
  transition: background-color 0.3s ease;
}

.elo-explanation {
  max-width: 800px;
  margin-top: 40px;
  padding: 0 20px;
  font-weight: 500;
  font-size: 1.1rem;
  color: #333;
}

.elo-explanation h2 {
  font-size: 1.8rem;
  font-weight: bold;
  margin-bottom: 15px;
  color: #222;
}

.elo-explanation ul {
  text-align: left;
  margin: 15px 0 15px 30px;
  padding: 0;
}

.elo-explanation li {
  margin-bottom: 8px;
  font-weight: bold;
}


.info-message {
  background-color: #fff3cd;
  color: #856404;
  padding: 32px 20px; /* espace interne normal */
  border: 1px solid #ffeeba;
  border-radius: 8px;
  margin: 80px auto 20px; /* top = espace sous le bouton retour */
  max-width: 800px;
  font-weight: 500;
  text-align: center;
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.05);
}