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

body {
  background: #111;
  font-family: 'Segoe UI', sans-serif;
  color: #ffffff;
  padding: 40px 20px;
  padding-top: 70px;
}

.section {
  max-width: 800px;
  margin: auto;
}

h1 {
  background-color: #2c91b9;
  color: white;
  padding: 20px;
  text-align: center;
  border-radius: 12px;
  font-size: 32px;
  margin-bottom: 30px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

img {
  width: 100%;
  max-width: 700px;
  border-radius: 12px;
  margin: 0 auto 30px auto;
  display: block;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

h2 {
  font-size: 24px;
  margin: 25px 0 10px;
  color: #70d6ff;
}

ul {
  list-style-type: disc;
  padding-left: 20px;
  margin-bottom: 30px;
}

ul li {
  margin-bottom: 8px;
  line-height: 1.5;
}

ul li:hover {
  color: #2c91b9;
  cursor: default;
  transition: color 0.3s ease;
}

.btn-accueil {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  background-color: #70d6ff;
  color: white;
  padding: 10px 25px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: bold;
  font-size: 16px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-accueil:hover {
  transform: translateX(-50%) translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
}

@media (max-width: 600px) {
  .section {
    padding: 0 10px;
  }
  h1 {
    font-size: 24px;
  }
  ul {
    padding-left: 15px;
  }
}