body {
  background-color: #f8f9fa;
}

.custom-container {
  max-width: 600px; /* limits container width on large screens */
  margin: 0 auto;
  background-color: #fff;
  padding: 20px;
  border-radius: 5px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.form-group {
  margin-bottom: 20px;
}

.btn {
  width: 100%;
}

/* Make results stack on smaller screens */
@media (max-width: 576px) {
  .results {
    flex-direction: column;
    align-items: flex-start;
  }
  .results h2 {
    margin-bottom: 10px;
    font-size: medium;
  }
}