body {
      /* font-family: Arial, Helvetica, sans-serif; */
      font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
      background: #0b1a33;
      color: white;
      margin: 0;
      padding: 0;
      text-align: center;
    }

    .container {
      max-width: 900px;
      margin: auto;
      padding: 40px 20px;
    }

    h1 {
      color: #22c55e;
      font-size: 64px;
      letter-spacing: 4px;
      margin-bottom: 10px;
    }

    .tagline {
      font-size: 22px;
      color: #cbd5e1;
      margin-bottom: 20px;
    }

    .meaning {
      color: #94a3b8;
      font-size: 16px;
      margin-bottom: 40px;
      line-height: 1.5;
    }

    .box {
      background: #1e293b;
      padding: 40px;
      border-radius: 12px;
      margin-bottom: 40px;
    }

    .price {
      font-size: 30px;
      color: #22c55e;
      margin-bottom: 20px;
      font-weight: bold;
    }

    .description {
      color: #cbd5e1;
      font-size: 18px;
      max-width: 600px;
      margin: 0 auto 30px;
      line-height: 1.5;
    }

    .btn-action {
      margin-top: 20px;
    }

    .btn-action .button {
      display: inline-block;
      background: #22c55e;
      color: black;
      padding: 16px 38px;
      font-size: 18px;
      border-radius: 8px;
      text-decoration: none;
      font-weight: bold;
      margin: 5px;
      transition: all 0.2s ease;
    }

    .btn-action .button:hover {
      opacity: 0.9;
      transform: translateY(-1px);
    }

    .button.secondary {
      background: #374473;
      color: white;
    }

    .features {
      margin-top: 40px;
      font-size: 16px;
      color: #e2e8f0;
      /* line-height: 1.9; */
    }

    .features span {
      display: inline-block;
      margin: 6px 12px;
      white-space: nowrap;
    }

    .features span:before {
      content: "✔";
      color: #22c55e;
      margin-right: 5px;
    }

    .footer {
      margin-top: 60px;
      color: #94a3b8;
      font-size: 14px;
    }

    .footer a {
      text-decoration: none;
      color: #22c55e;
      font-weight: 600;
    }

    @media (max-width:600px) {
      h1 {
        font-size: 42px;
      }

      .tagline {
        font-size: 18px;
      }

      .price {
        font-size: 24px;
      }
    }