body {
      margin: 0;
      font-family: 'Tahoma', sans-serif;
      background-color: #f2f2f2;
      color: #333;
    }
    header {
      background: linear-gradient(to right, #0f2027, #203a43, #2c5364);
      color: white;
      padding: 60px 20px;
      text-align: center;
    }
    header h1 {
      font-size: 36px;
    }
    header p {
      font-size: 18px;
      margin-top: 10px;
    }
    .product-img {
      text-align: center;
      margin-top: -40px;
    }
    .product-img img {
      max-width: 250px;
      border-radius: 15px;
      box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    }
    .features {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      max-width: 1000px;
      margin: 40px auto;
      padding: 0 20px;
    }
    .feature {
      background: white;
      padding: 20px;
      border-radius: 12px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.1);
      flex: 1 1 250px;
    }
    .feature h3 {
      color: #2c5364;
      font-size: 18px;
    }
    .price-section {
      text-align: center;
      background: #fff;
      padding: 40px 20px;
      margin: 30px auto;
      max-width: 600px;
      border-radius: 12px;
      box-shadow: 0 3px 12px rgba(0,0,0,0.1);
    }
    .price-section h2 {
      font-size: 28px;
      margin-bottom: 10px;
    }
    .price-section .price {
      color: #28a745;
      font-size: 26px;
      margin: 10px 0;
    }
    .timer {
      font-size: 18px;
      color: #dc3545;
      margin-top: 10px;
    }
    .cta {
      text-align: center;
      margin: 20px;
    }
    .cta a {
      background: #007bff;
      color: white;
      padding: 14px 28px;
      border-radius: 8px;
      text-decoration: none;
      font-size: 18px;
    }
    form {
      background: white;
      max-width: 600px;
      margin: 30px auto;
      padding: 30px;
      border-radius: 12px;
      box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    }
    form input, form button {
      width: 100%;
      padding: 12px;
      margin-bottom: 15px;
      font-size: 16px;
      border: 1px solid #ccc;
      border-radius: 8px;
    }
    form button {
      background-color: #28a745;
      color: white;
      border: none;
    }
    form button:hover {
      background-color: #218838;
    }
    footer {
      text-align: center;
      background: #222;
      color: #ccc;
      padding: 20px;
      margin-top: 40px;
    }

    @media (max-width: 600px) {
      header h1 { font-size: 28px; }
      .feature { flex: 1 1 100%; }
    }