:root {
  --bs-primary: #2563eb;
  --bs-primary-rgb: 37, 99, 235;
}

body {
  background: #f8fafc;
  min-height: 100vh;
}

.navbar-brand {
  letter-spacing: -0.5px;
}

.card {
  border-radius: 12px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08) !important;
}

code {
  font-size: 0.85em;
  background: #eef2ff;
  padding: 2px 6px;
  border-radius: 4px;
}

.btn {
  border-radius: 8px;
}

.alert {
  border-radius: 10px;
}

footer {
  color: #94a3b8 !important;
}

@media (max-width: 768px) {
  .display-4 {
    font-size: 1.8rem;
  }
}