* {
      box-sizing: border-box;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    }

    body {
      margin: 0;
      min-height: 100vh;
      background: radial-gradient(1000px 500px at 10% -10%, #e0e7ff, transparent),
                  radial-gradient(900px 450px at 90% 10%, #dcfce7, transparent),
                  #f8fafc;
      display: flex;
      flex-direction: column;
      align-items: center;
    }
    

    .wrapper {
      width: 100%;
      max-width: 820px;
      padding: 28px;
      flex: 1;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
    }
  

    .header {
      text-align: center;
      margin-bottom: 28px;
    }

    .header h1 {
      font-size: 2.1rem;
      font-weight: 800;
      letter-spacing: -0.6px;
      background: linear-gradient(90deg, #2563eb, #16a34a);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 8px;
    }

    .header p {
      color: #64748b;
      font-size: 0.95rem;
    }

    .card {
      background: rgba(255, 255, 255, 0.85);
      width: 600px;
      border-radius: 20px;
      padding: 26px;
      box-shadow: 0 30px 60px rgba(0, 0, 0, 0.12);
      border: 1px solid rgba(255,255,255,0.6);
      backdrop-filter: blur(10px);
    }

    .field {
      display: flex;
      flex-direction: column;
      margin-bottom: 18px;
    }

    .field label {
      font-size: 0.8rem;
      font-weight: 600;
      color: #475569;
      margin-bottom: 6px;
    }

    .field input {
      padding: 13px 14px;
      border-radius: 12px;
      border: 1px solid #cbd5f5;
      font-size: 0.95rem;
      background: #f8fafc;
      transition: all 0.2s ease;
    }

    .field input:focus {
      outline: none;
      border-color: #2563eb;
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(37,99,235,0.15);
    }

    button {
      width: 100%;
      margin-top: 12px;
      padding: 14px;
      border-radius: 14px;
      border: none;
      background: linear-gradient(135deg, #2563eb, #16a34a);
      color: #ffffff;
      font-size: 1.05rem;
      font-weight: 700;
      cursor: pointer;
      box-shadow: 0 10px 25px rgba(0,0,0,0.15);
      transition: transform 0.15s ease, box-shadow 0.15s ease;
    }

    button:hover {
      transform: translateY(-2px);
      box-shadow: 0 18px 35px rgba(0,0,0,0.18);
    }

    .qr-preview {
      justify-self: center;
      margin-top: 26px;
      width: 500px;
      height: 300px;
      border-radius: 16px;
      background: linear-gradient(135deg, #f1f5f9, #ffffff);
      border: 1.5px dashed #94a3b8;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #475569;
      font-size: 0.9rem;
    }

    footer {
      margin-top: 32px;
      color: black;
      text-align: center;
      font-size: 1.5rem;
      color: #64748b;
    }