/*DESIGN BY KUKUCIAO*/
    body {
      margin: 0;
      height: 100vh;
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      background: linear-gradient(135deg, #667eea, #764ba2);
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      color: #fff;
      text-align: center;
      padding: 20px;
    }

    h1 {
      font-size: 2.8rem;
      margin-bottom: 0.2em;
      text-shadow: 0 2px 6px rgba(0,0,0,0.3);
    }

    p.subtitle {
      font-size: 1.2rem;
      margin-top: 0;
      margin-bottom: 2em;
      font-weight: 500;
      text-shadow: 0 1px 3px rgba(0,0,0,0.25);
    }

    img.barcode {
      max-width: 300px;
      width: 80vw;
      height: auto;
      border: 8px solid #fff;
      border-radius: 16px;
      box-shadow: 0 8px 20px rgba(0,0,0,0.4);
      background: #fff;
      padding: 16px;
      margin-bottom: 20px;
    }

    .download-btn {
      display: inline-block;
      background-color: #facc15;
      color: #1e293b;
      font-size: 1rem;
      font-weight: bold;
      padding: 12px 24px;
      border-radius: 8px;
      text-decoration: none;
      box-shadow: 0 4px 8px rgba(0,0,0,0.3);
      transition: background-color 0.3s ease;
    }

    .download-btn:hover {
      background-color: #fbbf24;
    }

    footer {
      margin-top: 3em;
      font-size: 0.9rem;
      opacity: 0.7;
    }

    @media (max-width: 480px) {
      h1 {
        font-size: 2rem;
      }
      p.subtitle {
        font-size: 1rem;
      }
      img.barcode {
        max-width: 250px;
      }
    }