* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Page background and centering */
body {
  font-family: Arial, Helvetica, sans-serif;
  background-color: hsl(212, 45%, 89%);
  min-height: 100vh;

  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}


/* Card styling */
.container {
  background-color: white;
  max-width: 320px;
  padding: 20px;
  border-radius: 15px;
  text-align: center;
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

/* QR image */
.container img {
  width: 100%;
  border-radius: 10px;
  margin-bottom: 20px;
}

/* Title */
.container h1 {
  font-size: 20px;
  margin-bottom: 15px;
  color: hsl(218, 44%, 22%);
}

/* Paragraph text */
.container p {
  font-size: 15px;
  color: hsl(220, 15%, 55%);
  line-height: 1.5;
  padding: 0 10px;
}

/* Footer attribution */
.attribution {
  font-size: 11px;
  text-align: center;
}

.attribution a {
  color: hsl(228, 45%, 44%);
}

/* Responsive design */
@media (max-width: 375px) {
  .card {
    margin: 20px;
  }
}