* {
    box-sizing: border-box;
  }
  
  body {
    margin: 0;
    font-family: system-ui, sans-serif;
    background: #0f0f14;
    color: #fff;
    text-align: center;
  }
  
  h1, h2, h3 {
    margin: 10px 0;
  }
  
  button {
    width: 90%;
    max-width: 350px;
    padding: 15px;
    font-size: 18px;
    border-radius: 12px;
    border: none;
    background: #6c5ce7;
    color: #fff;
    margin: 10px auto;
  }
  
  button.danger {
    background: #d63031;
  }
  
  input, textarea {
    width: 90%;
    max-width: 350px;
    padding: 12px;
    font-size: 16px;
    border-radius: 10px;
    border: none;
    margin: 8px 0;
  }
  
  textarea {
    height: 200px;
  }
  
  .card {
    background: #1c1c26;
    border-radius: 16px;
    padding: 15px;
    margin: 12px;
  }
  
  ul {
    list-style: none;
    padding: 0;
  }
  
  li {
    padding: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }