/*-------------------------------------------- Main --------------------------------------------*/
    :root {
      --rojo: #FF7630;
      --gris: #f5f5f5;
      --texto: #333;
    }


    main {
      width: 100%;
      max-width: 1000px;
      padding: 20px;
      margin: 0 auto;
    }

    .checkout {
      margin: 0 auto;
      background: white;
      border-radius: 16px;
      padding: 25px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    }

    .checkout h1 {
      font-size: 24px;
      color: var(--texto);
    }

    .checkout .sub {
      color: #777;
      margin-bottom: 20px;
    }

    .checkout .info {
      background: #eef2ff;
      padding: 20px;
      border-radius: 12px;
      font-size: 14px;
    }

    .checkout .info img {
      width: 50px;
      margin-right: 10px;
    }

    .checkout .form-group {
      margin-bottom: 15px;
    }

    .checkout label {
      font-size: 14px;
      display: block;
      margin-bottom: 5px;
    }

    .checkout input {
      width: 100%;
      padding: 10px;
      border-radius: 8px;
      border: 1px solid #ccc;
      outline: none;
      transition: 0.2s;
    }

    .checkout input:focus {
      border-color: var(--rojo);
    }

    .checkout .row {
      display: flex;
      gap: 10px;
    }

    .checkout .row div {
      flex: 1;
    }

    .checkout button {
      width: 100%;
      padding: 12px;
      border: none;
      border-radius: 10px;
      background: var(--rojo);
      color: white;
      font-weight: bold;
      cursor: pointer;
      transition: 0.3s;
    }

    .checkout button:hover {
      background: #f86820;
    }

    .checkout .back {
      display: block;
      margin-top: 10px;
      text-align: center;
      color: #555;
      text-decoration: none;
      font-size: 14px;
    }

    /* 📱 RESPONSIVE */
    @media (max-width: 768px) {
      .checkout {
        grid-template-columns: 1fr;
      }
    }