body {
  font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
  font-size: 1.1rem;
  color: #222;
  background-color: #f8f9fa;
}
h1, .display-4 {
  color: #1a237e;
  font-weight: 700;
}
a {
  color: #1976d2;
}
a:hover {
  color: #0d47a1;
  text-decoration: underline;
}
.card {
  border-radius: 12px;
}
.navbar-brand {
  font-weight: bold;
  letter-spacing: 1px;
}
.card-body {
  padding: 2rem;
}
ul, ol {
  margin-bottom: 1.5rem;
}
hr {
  margin: 2rem 0;
}