/* Logo is 150 px wide everywhere (pkgdown default: 80-120 px). Only the
   width is set, so the image keeps its aspect ratio and never stretches;
   the PNG is square, so it renders 150 x 150. */
body img.logo {
  width: 150px;
  height: auto;
}

/* Make the page header tall enough to hold the 150 px logo, so the
   header's bottom border runs below it instead of through it
   (pkgdown default min-height: 88-104 px). */
body .page-header:has(img.logo) {
  min-height: calc(150px + 0.5rem + 1px);
}