HTML Code

<!DOCTYPE html>
<html>
<head>
  <title>CSS light-level Dim Example</title>
  <style>
    body {
      font-family: system-ui, sans-serif;
      padding: 1.5rem;
      margin: 0;
    }

    .article {
      padding: 1.5rem;
      line-height: 1.6;
      max-width: 32rem;
    }

    @media (light-level: dim) {
      .article {
        background: #0f172a;
        color: #f1f5f9;
        font-weight: 500;
        border-radius: 0.5rem;
      }
      .article a {
        color: #93c5fd;
        text-decoration: underline;
      }
    }
  </style>
</head>
<body>
  <article class="article">
    <h1>Night Reading</h1>
    <p>High-contrast article for dim environments.</p>
    <a href="#">Learn more</a>
  </article>
</body>
</html>

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CSS light-level - Dim Contrast Boost