/* Global font and colors */
body {
  margin: 0;
  padding: 0;
  font-family: 'JetBrains Mono', monospace;
  background-color: #000; /* black background */
  color: #fff; /* white text */
  line-height: 1.6;
}

/* Header styling */
header {
  background: #0a0a0a; /* subtle contrast */
  padding: 30px 20px;
  text-align: center;
  border-bottom: 1px solid #222;
}
header h1 {
  margin: 0 0 15px 0;
  font-size: 2.5rem;
  letter-spacing: -1px;
}

/* Navigation */
nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  gap: 20px;
}
nav a {
  color: #888; /* gray by default */
  text-decoration: none;
  font-weight: 700;
  transition: color 0.2s ease;
}
nav a:hover {
  color: #fff; /* white on hover */
}

/* Main content */
main {
  max-width: 750px;
  margin: 40px auto;
  padding: 0 20px;
}
section {
  margin-bottom: 50px; /* distanzia le sezioni */
}
section h2 {
  font-size: 1.8rem;
  border-bottom: 1px solid #222;
  padding-bottom: 8px;
  margin-top: 0;
  margin-bottom: 20px;
}
p, li {
  color: #ccc; /* light gray for better reading comfort on black */
}
strong, code {
  color: #fff; /* pure white for highlights */
}
code {
  background: #111;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.95rem;
}
ol li, ul li {
  margin-bottom: 10px; /* distanzia gli elementi delle liste */
}

/* Footer */
footer {
  background: #0a0a0a;
  text-align: center;
  padding: 30px 20px;
  border-top: 1px solid #222;
  margin-top: 80px;
}
footer p {
  margin: 5px 0;
  font-size: 0.9rem;
  color: #666;
}
footer a {
  color: #fff;
  text-decoration: underline;
}

/* Responsive adjustments */
@media (max-width: 600px) {
  header {
    padding: 20px 15px;
  }
  header h1 {
    font-size: 2rem;
  }
  nav ul {
    flex-direction: column;
    gap: 12px;
  }
  main {
    margin: 20px auto;
    padding: 0 15px;
  }
  section h2 {
    font-size: 1.5rem;
  }
}