.form {
    width: 100%;
    max-width: 40rem; /* ~640px */
    margin: 0 auto;
    padding: 1.5rem;
    background-color: white;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    border: 1px solid #e5e7eb;
  }
  
  .field {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .label {
    font-size: 0.875rem;
    font-weight: 500;
    color: #374151;
  }
  
  .input,
  .select {
    margin-top: 0.25rem;
    padding: 0.5rem;
    border-radius: 0.375rem;
    border: 1px solid #e5e7eb;
    font-size: 0.875rem;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
    outline: none;
  }
  
  .input:focus,
  .select:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
  }
  
  .button {
    width: 100%;
    background-color: #2563eb;
    color: white;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    border: none;
    cursor: pointer;
    transition: background-color 0.15s ease-in-out;
  }
  
  .button:hover {
    background-color: #1d4ed8;
  }
  
  .button:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.5);
  }