body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #f5f5f5;
}

.container {
    text-align: center;
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

button {
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
    background: #4285F4;
    color: white;
    border: none;
    border-radius: 4px;
}

#userInfo {
    margin-top: 20px;
}

#avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin-bottom: 10px;
}

.hidden {
    display: none;
}