/* Style sombre élégant */
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background-color: #121212;
  color: #e5e5e5;
  line-height: 1.6;
}

header {
  background: #1f1f1f;
  padding: 1rem 0;
  border-bottom: 1px solid #333;
}

header .container {
  width: 90%;
  margin: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header h1 {
  font-size: 1.4rem;
  color: #f5f5f5;
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
}

nav ul li {
  margin-left: 1.5rem;
}

nav ul li a {
  color: #ddd;
  text-decoration: none;
  transition: color 0.3s;
}

nav ul li a:hover {
  color: #00c3ff;
}

.hero {
  text-align: center;
  padding: 5rem 2rem;
}

.hero h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: #fff;
}

.hero p {
  max-width: 600px;
  margin: auto;
  font-size: 1.2rem;
  color: #ccc;
}

.cta {
  display: inline-block;
  margin-top: 2rem;
  padding: 1rem 2rem;
  background: linear-gradient(45deg, #00c3ff, #0066ff);
  color: white;
  text-decoration: none;
  font-weight: bold;
  border-radius: 30px;
  transition: 0.3s;
}

.cta:hover {
  background: linear-gradient(45deg, #0066ff, #00c3ff);
}

footer {
  background: #1f1f1f;
  text-align: center;
  padding: 1rem 0;
  border-top: 1px solid #333;
  font-size: 0.9rem;
  color: #aaa;
}