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

body {
  font-family: Arial, sans-serif;
  background: #07111F;
  color: #FFFFFF;
  line-height: 1.7;
  overflow-x: hidden;
}

/* Navbar */
.navbar {
  width: 100%;
  padding: 20px 8%;
  display: flex;
  align-items: center;
  gap: 12px;
  position: fixed;
  top: 0;
  z-index: 1000;
  background: rgba(7,17,31,0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,183,232,0.1);
}

.logo-container img {
  width: 52px;
  height: 52px;
  object-fit: contain;
  border-radius: 14px;
}

.logo-container span {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: 1px;
}

/* Hero */
.hero {
  min-height: 50vh;
  padding: 150px 8% 80px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  gap: 20px;
  background: linear-gradient(180deg, #07111F 0%, #08182B 100%);
}

.hero h1 {
  font-size: 48px;
  color: #FFFFFF;
  line-height: 1.2;
  margin-bottom: 10px;
}

.hero p {
  font-size: 18px;
  color: #C9D4E5;
  max-width: 700px;
  text-align: center;
}

/* Contenu principal */
.content {
  padding: 60px 8%;
  max-width: 900px;
  margin: 0 auto;
  color: #C9D4E5;
  line-height: 1.7;
}

.content h2 {
  font-size: 32px;
  color: #FFFFFF;
  margin-bottom: 16px;
}

.content p {
  margin-bottom: 20px;
  font-size: 16px;
}

.content a {
  color: #00B7E8;
  text-decoration: underline;
}

/* Bouton retour */
.return-btn-container {
  text-align: center;
  margin-top: 40px;
}

.btn-return {
  display: inline-block;
  padding: 16px 36px;
  border-radius: 20px;
  font-weight: 700;
  background: linear-gradient(135deg, #00B7E8, #0066A8);
  color: #FFFFFF;
  text-decoration: none;
  transition: 0.3s ease;
  font-size: 18px;
}

.btn-return:hover {
  transform: translateY(-4px);
  box-shadow: 0 0 50px rgba(0,183,232,0.5);
}

/* Footer */
footer {
  padding: 30px 8%;
  text-align: center;
  background: #050C18;
  color: #8FA4BE;
  font-size: 14px;
}

/* Responsive */
@media (max-width: 700px) {
  .hero h1 { font-size: 36px; }
  .hero p { font-size: 16px; }
  .content h2 { font-size: 28px; }
  .content p { font-size: 15px; }
  .btn-return { width: 80%; font-size: 16px; }
}