:root {
    --primary: orangered;
    --primary-dark: rgb(204, 56, 2);
    --gray-100: #f3f4f6;
    --gray-200: #c2c3c5;
    --gray-700: #374151;
    --gray-900: #111827;
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: system-ui, -apple-system, sans-serif;
  }
  
  body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background-color: #fff;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
  }
  
  .container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    gap: 2rem;
    padding: 50px 0;
    grid-template-columns: 1fr;
  }
  
  @media (min-width: 768px) {
    .container {
      grid-template-columns: 1fr 1fr;
    }
  }
  
  .card {
    background: white;
    border-radius: 0.75rem;
    padding: 2rem;
    border: 1px solid #ccc;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  }
  
  h1 {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--gray-900);
  }
  
  .form-group {
    margin-bottom: 1.5rem;
  }
  
  label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--gray-700);
  }
  
  select,
  input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--gray-200);
    border-radius: 0.5rem;
    font-size: 1rem;
    margin-bottom: 1rem;
  }
  
  select:disabled {
    background-color: var(--gray-100);
    cursor: not-allowed;
  }
  
  .price-pages-container {
    display: flex;
    gap: 1rem;
  }
  
  .price-input,
  .pages-input {
    flex: 1;
  }
  
  .quantity-input {
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  
  .quantity-input input {
    width: 80px;
    text-align: center;
    margin-bottom: 0;
  }
  
  .quantity-btn {
    width: 40px;
    height: 40px;
    border: 1px solid var(--gray-200);
    background: white;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
  }
  
  .quantity-btn:hover {
    background-color: var(--gray-100);
  }
  
  .quantity-btn:active {
    transform: scale(0.95);
  }
  
  .file-input {
    padding: 0.5rem;
    border: 1px solid var(--gray-200);
    border-radius: 0.5rem;
    width: 100%;
  }
  
  .btn {
    display: block;
    width: 100%;
    padding: 0.875rem;
    border-radius: 2rem;
    border: none;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.2s;
  }
  
  .btn-primary {
    background-color: var(--primary);
    color: white;
  }
  
  .btn-primary:hover {
    background-color: var(--primary-dark);
  }
  
  .options {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
  
  #whatsapp {
    background-color: #25d366;
  }
  
  #whatsapp:hover {
    background-color: #128c7e;
  }
  
  #whatsapp i {
    font-size: 1.25rem;
    margin-right: 0.5rem;
  }
  
  .info-list {
    list-style: none;
  }
  
  .info-list li {
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  
  .info-list li::before {
    content: "•";
    color: var(--primary);
    font-weight: bold;
  }
  
  .word-count-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1.5rem;
  }
  
  .word-count-table th,
  .word-count-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
  }
  
  .highlight {
    color: #dc2626;
    font-weight: 500;
  }
  
  input[type="number"]::-webkit-inner-spin-button,
  input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
  }
  
  input[type="number"] {
    -moz-appearance: textfield;
  }