/* ACHATPRO - Design professionnel */

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

body {
  font-family: Arial, sans-serif;
  background: #f4f6fb;
  color: #17243a;
  line-height: 1.6;
}

.header {
  background: #102b50;
  color: white;
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
}

.logo {
  font-size: 25px;
  font-weight: bold;
  color: #f5bd45;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
}

nav a {
  color: white;
  text-decoration: none;
  font-weight: bold;
}

button, .main-button {
  background: #e9a92e;
  color: #102b50;
  border: none;
  padding: 13px 22px;
  border-radius: 8px;
  font-weight: bold;
  cursor: pointer;
  text-decoration: none;
}

.hero {
  background: linear-gradient(135deg, #102b50, #24558a);
  color: white;
  text-align: center;
  padding: 75px 20px;
}

.hero h1 {
  font-size: 38px;
  margin-bottom: 20px;
}

.hero p {
  font-size: 18px;
  margin-bottom: 25px;
}

.advantages, .products, .referral {
  padding: 50px 20px;
  text-align: center;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.advantages article {
  background: white;
  padding: 25px;
  border-radius: 12px;
  box-shadow: 0 3px 12px #00000012;
}

.products {
  background: white;
}

#productList {
  padding: 30px;
}

.referral {
  background: #102b50;
  color: white;
}

footer {
  background: #091b32;
  color: white;
  text-align: center;
  padding: 25px;
}

@media (max-width: 600px) {
  .header {
    flex-direction: column;
  }

  .hero h1 {
    font-size: 28px;
  }

  nav {
    justify-content: center;
  }
}