@layer page {
  /* Nickel art-directs the whole page: black field, white text. */
  body {
    background: #000;
    color: #fff;
  }

  section {
    margin: 0;
    padding-top: 0.25em;
  }

  h1 {
    font-size: inherit;
    letter-spacing: 0.5em;
    margin: 1em;
    text-align: center;
  }

  h1 img {
    max-width: 10em;
  }

  /* CSS-Grid specimen: dense auto-flow with featured cells spanning bigger areas. */
  .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(10em, 1fr));
    grid-auto-rows: minmax(0.25vh, auto);
    grid-auto-flow: dense;
  }

  .feature:nth-child(9n + 1) {
    grid-column: auto / span 2;
    grid-row: auto / span 2;
  }

  .desc {
    grid-column: auto / span 2;
    padding: 1.5em;
  }

  #ampersand {
    grid-column: auto / span 2;
  }

  .glyph:last-child {
    grid-column: auto;
    grid-row: auto;
  }

  .glyph {
    text-align: center;
    background: #eee;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1em;
    overflow: hidden;
  }

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

  .desc p a {
    font-weight: bold;
  }

  .desc p a:hover {
    color: #f6f;
  }

  @media (min-width: 50em) {
    .feature:nth-child(20n + 1) {
      grid-column: auto / span 3;
      grid-row: auto / span 3;
    }

    .desc {
      grid-column: auto / span 3;
    }
  }
}