body {
  font-family: Arial, sans-serif;
  background: #f1f3f4;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.container {
  background: white;
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  width: 320px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

h2 {
  margin-bottom: 10px;
}

#g_id_signin {
  margin-top: 20px;
}

.hidden {
  display: none;
}

#user-info img {
  width: 80px;
  border-radius: 50%;
  margin-top: 20px;
}

button {
  margin-top: 15px;
  padding: 10px;
  border: none;
  background: #1a73e8;
  color: white;
  border-radius: 5px;
  cursor: pointer;
}

button:hover {
  background: #1558b0;
}