body { font-family: Arial, sans-serif; margin:0; background:#0d1b2a; color:#e0e1dd; }
header { padding:20px; background:#1b263b; }
nav a { margin-right:15px; color:#e0e1dd; text-decoration:none; }
.hero { padding:40px; background:#415a77; }


/* Fade-in animation */
body {
  opacity: 0;
  animation: fadeIn 1.2s ease-out forwards;
}

@keyframes fadeIn {
  to { opacity: 1; }
}