body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #f8f9fa;
  padding-top: 2rem;
  line-height: 1.6;
}

nav.container-fluid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}
nav ul {
  display: flex;
  gap: 1rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

form.grid {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 1rem;
  align-items: end;
}

footer {
  text-align: center;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid #ccc;
}