:root {
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --accent: #0f172a; 
    --link-color: #462491; 
  }

  /* This wrapper ensures the card has a "playground" that fills the whole screen */
  .page-wrapper {
    display: flex;
    justify-content: center; /* Center horizontally */
    align-items: center;     /* Center vertically */
    margin: 0;
  }

  .signup-card {
    background: var(--card-bg);
    border-radius: 28px;
    padding: 50px 40px;
    text-align: center;
    max-width: 380px;
    width: 100%;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(0, 0, 0, 0.05);
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  }

  .signup-card:hover {
    transform: translateY(-10px);
    border-color: var(--link-color);
  }

  .qr-container {
    background: #f1f5f9;
    width: 180px;
    height: 180px;
    margin: 0 auto 30px auto;
    padding: 15px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .qr-container img {
    width: 100%;
    height: auto;
  }

  .main-heading {
    margin: 0;
    color: var(--accent);
    font-size: 1.6rem;
    font-weight: 800;
  }

  .sub-heading {
    color: #64748b;
    font-size: 1rem;
    margin: 12px 0 30px 0;
    display: block;
  }

  .btn-visual {
    background-color: var(--link-color);
    color: white;
    padding: 14px 40px;
    border-radius: 14px;
    font-weight: 700;
    display: inline-block;
  }