    body {
      font-family: 'Montserrat', sans-serif;
      background-color: #f1f3f5;
      margin: 0;
      padding: 0;
      display: flex;
      flex-direction: column;
      min-height: 100vh;
    }

    header {
      background: linear-gradient(to right, #000000, #1c1c1c);
      padding: 15px 0;
      box-shadow: 0 4px 12px rgba(0,0,0,0.25);
    }

    .navbar-container {
      max-width: 1400px;
      margin: 0 auto;
      padding: 0 20px;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 10px;
    }

    .logotipo {
      max-width: 150px;
      height: auto;
    }

    .navbar-menu {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 12px;
    }

    .navbar-menu a {
      color: #dfc30c;
      font-weight: bold;
      text-decoration: none;
      padding: 8px 14px;
      transition: background-color 0.3s;
      font-size: 1em;
    }

    .navbar-menu a:hover {
      background-color: #333;
      border-radius: 6px;
      color: #fff;
    }

    .container {
      max-width: 90%;
      margin: 60px auto;
      background-color: #fff;
      border-radius: 12px;
      box-shadow: 0 10px 30px rgba(0,0,0,0.1);
      padding: 40px;
    }

    .product-section {
      display: flex;
      flex-wrap: wrap;
      gap: 30px;
    }

    .product-image {
      flex: 1 1 400px;
      text-align: center;
    }

    .product-image img {
      width: 100%;
      max-width: 500px;
      height: auto;
      border-radius: 12px;
      box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    }

    .product-details {
      flex: 1 1 400px;
      background-color: #f8f9fa;
      padding: 30px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .product-details h1 {
      font-size: 2em;
      margin-bottom: 20px;
      color: #333;
    }

    .product-details p {
      font-size: 1.2em;
      margin-bottom: 20px;
      color: #555;
    }

    .price {
      font-size: 1.8em;
      color: #28a745;
      font-weight: bold;
      margin-bottom: 30px;
    }

    .btn {
      padding: 15px 30px;
      background-color: #28a745;
      color: #fff;
      font-size: 1.2em;
      text-decoration: none;
      border-radius: 8px;
      cursor: pointer;
      animation: pulse 1.5s infinite;
      width: fit-content;
      margin-bottom: 20px;
      border: none;
    }

    .btn:hover {
      background-color: #218838;
    }

    @keyframes pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); }
    }

    footer {
      background: linear-gradient(to right, #000000, #1c1c1c);
      color: #fff;
      padding: 40px 20px;
      text-align: center;
      border-top-left-radius: 20px;
      border-top-right-radius: 20px;
      box-shadow: 0 -4px 12px rgba(0,0,0,0.2);
      font-size: 1em;
      margin-top: auto;
    }

    @media (max-width: 768px) {
      .product-section {
        flex-direction: column;
      }

      .product-image img {
        width: 100%;
        border-radius: 10px;
      }
    }