body {
  margin: 0;
  font-family: Segoe UI, Arial, sans-serif;
  background: linear-gradient(135deg, #eaf0f6, #fdfdfd);
  color: #333;
}

header {
  background: linear-gradient(135deg, #1f3c88, #3a6ea5);
  color: #fff;
  text-align: center;
  padding: 60px 20px;
  border-bottom-left-radius: 60px;
  border-bottom-right-radius: 60px;
}

section {
  max-width: 1000px;
  margin: 40px auto;
  padding: 30px;
  background: #fff;
  border-radius: 20px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

h2 {
  color: #1f3c88;
  margin-bottom: 20px;
  position: relative;
}

h2::after {
  content: "";
  width: 60px;
  height: 4px;
  background: #f4a261;
  display: block;
  margin-top: 8px;
  border-radius: 10px;
}

.formations ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
}

.formations li {
  background: #f8f9fc;
  border: 2px solid #e0e6f0;
  padding: 25px;
  border-radius: 20px;
  text-align: center;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.formations li:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.10);
}

.cta {
  text-align: center;
  background: linear-gradient(135deg, #f4a261, #e76f51);
  color: #fff;
}

.cta h2 {
  color: #fff;
}

.cta a {
  display: inline-block;
  margin-top: 25px;
  padding: 14px 30px;
  background: #fff;
  color: #e76f51;
  font-weight: 700;
  text-decoration: none;
  border-radius: 30px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.20);
}

footer {
  text-align: center;
  padding: 20px;
  color: #666;
  margin-top: 40px;
}