.github-card {
    width: 300px;
    border: 1px solid #e1e4e8;
    padding: 16px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin: 0 auto 12px;
    overflow: hidden;
  }

.avatar img {
    width: 100%;
    height: auto;
}

.username {
    font-size: 18px;
    font-weight: bold;
    margin: 8px 0;
}

.bio {
    font-size: 14px;
    color: #666;
    margin-bottom: 16px;
}

.btn {
    display: inline-block;
    padding: 8px 16px;
    background-color: #0366d6;
    color: #fff;
    border: none;
    border-radius: 4px;
    text-decoration: none;
    font-size: 14px;
}