/* Certified Web 1.0 - one stylesheet, system fonts, no nonsense. */

body {
  font-family: Georgia, 'Times New Roman', serif;
  max-width: 44rem;
  margin: 2rem auto;
  padding: 0 1rem;
  line-height: 1.55;
  color: #222;
  background: #faf8f2;
}

header.masthead {
  text-align: center;
  border-bottom: 3px double #1a4a1a;
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
}
header.masthead h1 {
  font-variant: small-caps;
  letter-spacing: 0.08em;
  margin: 0.2rem 0;
  font-weight: normal;
  font-size: 2.2rem;
  color: #1a4a1a;
}
header.masthead p.tagline {
  margin: 0.2rem 0;
  font-style: italic;
  color: #555;
}

nav.crumbs {
  text-align: center;
  margin: 0.8rem 0 0 0;
  font-size: 0.95rem;
}
nav.crumbs a { margin: 0 0.6rem; }

h2 {
  font-weight: normal;
  font-variant: small-caps;
  letter-spacing: 0.05em;
  color: #1a4a1a;
  border-bottom: 1px solid #cfc9b8;
  padding-bottom: 0.15rem;
}

a:link { color: #1a3f7a; }
a:visited { color: #5a3a7a; }

code, td.mono {
  font-family: Consolas, Menlo, 'Courier New', monospace;
  font-size: 0.9em;
  background: #f1eee3;
  padding: 0 0.15em;
}
pre {
  background: #f1eee3;
  border: 1px solid #cfc9b8;
  padding: 0.6rem;
  overflow-x: auto;
  font-size: 0.85rem;
}
pre code { background: none; padding: 0; }

table {
  border-collapse: collapse;
  width: 100%;
  margin: 1rem 0;
  font-size: 0.95rem;
}
th, td {
  text-align: left;
  padding: 0.3rem 0.5rem;
  border-bottom: 1px solid #ddd6c4;
  vertical-align: top;
}
th { border-bottom: 2px solid #1a4a1a; font-weight: normal; font-variant: small-caps; }
td.num { text-align: right; }

.grade {
  display: inline-block;
  font-weight: bold;
  width: 1.6em;
  text-align: center;
  border: 2px solid currentColor;
}
.grade-A, .grade-B, .grade-C { color: #1a6b1a; }
.grade-D, .grade-F { color: #a11616; }

blockquote {
  border-left: 3px solid #cfc9b8;
  margin-left: 0;
  padding-left: 1rem;
  color: #555;
  font-style: italic;
}

figure.badge-figure { text-align: center; margin: 1.5rem 0; }
figure.badge-figure figcaption { font-size: 0.85rem; color: #777; margin-top: 0.4rem; }

footer.colophon {
  margin-top: 3rem;
  border-top: 3px double #1a4a1a;
  padding-top: 0.8rem;
  font-size: 0.85rem;
  color: #666;
  text-align: center;
}