:root {
  color-scheme: light;
  --ink: #111111;
  --muted: #333333;
  --line: #d7d7d1;
  --paper: #ffffff;
  --wash: #ffffff;
  --link: #111111;
}

html {
  scroll-padding-top: 5.5rem;
}

body,
.top,
.wrap,
main,
aside,
header,
section,
.glossary .level3,
.glossary section#index,
blockquote,
input,
button {
  background: #ffffff !important;
  color: #111111 !important;
  box-shadow: none !important;
}

body {
  font-family: Arial, Helvetica, sans-serif !important;
}

.top {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
}

.top a,
a {
  color: #111111 !important;
}

.brand {
  font-weight: 760;
  letter-spacing: 0.12em;
  text-decoration: none;
}

header {
  border-color: #111111;
}

header h1,
main > section > h1 {
  letter-spacing: -0.03em;
}

aside {
  color: #333333 !important;
}

input,
button,
.glossary .level3,
blockquote {
  border-color: var(--line) !important;
  border-radius: 0 !important;
}

.glossary .level3:target {
  border-color: #111111 !important;
  outline: 2px solid #111111;
  outline-offset: 2px;
}

.math.display,
table {
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: thin;
}

math {
  color: #111111;
}

.library-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 2rem 0;
  border: 1px solid var(--line);
}

.library-card {
  min-height: 12rem;
  padding: 1.6rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.library-card:nth-child(2n) {
  border-right: 0;
}

.library-card h2 {
  margin-top: 0;
}

.library-card p:last-child {
  margin-bottom: 0;
}

.qualification {
  margin-top: 2rem;
  padding: 1.25rem;
  border: 1px solid #111111;
}

@media (max-width: 850px) {
  .top {
    position: static;
  }

  .library-grid {
    grid-template-columns: 1fr;
  }

  .library-card,
  .library-card:nth-child(2n) {
    border-right: 0;
  }

  .math.display math {
    font-size: 0.94em;
  }
}