/* Dégradé rose doux */
body {
  font-family: 'Segoe UI', sans-serif;
background: linear-gradient(135deg, #81b1ff, #81b1ff);
  color: #4b004b;
  height: 100vh;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Boîte au centre */
.container {
  background: #fefdef;
  border-radius: 25px;
  padding: 40px;
  max-width: 500px;
  width: 90%;
  box-shadow: 0 15px 25px rgba(0, 0, 0, 0.2);
  text-align: center;
  animation: fadeIn 1.5s ease-in;
}

/* Bouton mignon */
button {
  margin-top: 20px;
  padding: 12px 24px;
  border: none;
  background-color: #ff85a2;
  color: white;
  border-radius: 30px;
  font-size: 16px;
  cursor: pointer;
  box-shadow: 0 5px 10px rgba(255, 133, 162, 0.3);
  transition: transform 0.2s, background 0.3s;
}

button:hover {
  transform: scale(1.05);
  background-color: #ff5d8f;
}

img {
  margin-top: 20px;
  width: 100%;
  border-radius: 15px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.hidden {
  display: none;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}