body {
  background-color: #f4f6f9;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.card {
  background-color: #ffffff;
  border-radius: 10px;
  border: none;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.05);
}

h3 {
  font-weight: 600;
  color: #343a40;
}

label.form-label {
  font-weight: 500;
  margin-bottom: 4px;
}

input.form-control,
select.form-select {
  border-radius: 6px;
  border: 1px solid #ced4da;
}

input.form-control:focus,
select.form-select:focus {
  border-color: #0d6efd;
  box-shadow: 0 0 0 0.15rem rgba(13, 110, 253, 0.15);
}

.btn {
  padding: 0.5rem 1.25rem;
  font-size: 0.95rem;
  border-radius: 6px;
}

.alert {
  margin-top: 1rem;
}