* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  :root {
    --main-bg-color: #1b1b32;
    --light-grey: #f5f6f7;
    --dark-purple: #5a01a7;
    --golden-yellow: #feac32;
  }
  
  body {
    background-color: var(--main-bg-color);
    text-align: center;
  }
  
  .title {
    color: var(--light-grey);
    margin: 20px 0;
  }
  
  #author-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .user-card {
    border-radius: 15px;
    width: 300px;
    height: 350px;
    background-color: var(--light-grey);
    margin: 20px;
  }
  
  .user-img {
    width: 150px;
    height: 150px;
    object-fit: cover;
  }
  
  .purple-divider {
    background-color: var(--dark-purple);
    width: 100%;
    height: 15px;
  }
  
  .author-name {
    margin: 10px;
  }
  
  .bio {
    margin: 20px;
  }
  
  .error-msg {
    color: var(--light-grey);
  }
  
  .btn {
    cursor: pointer;
    width: 200px;
    margin: 10px;
    color: var(--main-bg-color);
    font-size: 14px;
    background-color: var(--golden-yellow);
    background-image: linear-gradient(#fecc4c, #ffac33);
    border-color: var(--golden-yellow);
    border-width: 3px;
  }