body {
  background-image: url("/space_default.jpg");
  background-attachment: fixed;
  background-size: cover;
}

footer {
  text-shadow: 2px 2px 4px hsl(var(--bhsl-background-hue) var(--bhsl-background-saturation) var(--bhsl-background-lightness));
}

.panel {
  min-width: 288px;
}

.panel .panel {
  min-width: 0;
}

.chapter-no-header-margin h1,
.chapter-no-header-margin h2,
.chapter-no-header-margin h3,
.chapter-no-header-margin h4,
.chapter-no-header-margin h5,
.chapter-no-header-margin h6 {
  margin-top: 0 !important;
}

.details-no-indent {
  margin-left: 0;
}

.details-no-indent summary {
  margin-left: 0;
}

.details-header summary {
  text-align: center;
  --bhsl-current-hue: var(--bhsl-primary-hue);
  --bhsl-current-saturation: var(--bhsl-primary-saturation);
  --bhsl-current-lightness: var(--bhsl-primary-lightness);
  font-style: var(--bfont-header-style);
  font-variant: var(--bfont-header-variant);
  font-weight: var(--bfont-header-weight);
  font-stretch: var(--bfont-header-stretch);
  line-height: var(--bfont-header-height);
  font-family: var(--bfont-header-family);
}

#__next {
  margin: 0 auto;
  min-height: 100vh;
  max-width: 1000px;
}