body {
  font-family: Arial, sans-serif;
  background: #f4f4f4;
  text-align: center;
  padding: 2rem;
}

.container {
  max-width: 500px;
  margin: auto;
  background: white;
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

input {
  padding: 10px;
  width: 70%;
  margin-bottom: 1rem;
}

button {
  padding: 10px 20px;
  margin-left: 10px;
  cursor: pointer;
}

.card {
  margin-top: 20px;
}

.hidden {
  display: none;
}

img {
  width: 100px;
  border-radius: 50%;
  margin-bottom: 10px;
}