:root {
  --nres-ink: #1f2a24;
  --nres-muted: #52625a;
  --nres-panel: #f4f7f1;
  --nres-line: #d7dfd2;
  --nres-accent: #2f6f4e;
}

body {
  color: var(--nres-ink);
}

.callout-note,
.callout-tip,
.callout-warning {
  border-radius: 6px;
}

table {
  font-size: 0.95rem;
}

.chapter-loop {
  background: var(--nres-panel);
  border-left: 4px solid var(--nres-accent);
  margin: 1.25rem 0;
  padding: 1rem 1.2rem;
}

.chapter-loop p:last-child {
  margin-bottom: 0;
}

.small-note {
  color: var(--nres-muted);
  font-size: 0.92rem;
}

.course-title-page {
  min-height: 72vh;
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 1rem;
  padding: 2rem 0 3rem;
  text-align: center;
}

.course-title-page h1 {
  max-width: 14ch;
  margin: 0;
}

.course-title-page .course-title-name {
  max-width: 14ch;
  margin: 0;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.05;
}

.course-title-page .course-title-subtitle {
  margin: 0;
  color: var(--nres-muted);
  font-size: 1.35rem;
  font-weight: 500;
}

.course-title-page p.course-title-name,
.course-title-page p.course-title-subtitle {
  margin: 0;
}

.course-title-page p {
  margin: 0.25rem 0 0;
  color: var(--nres-muted);
  font-size: 1.05rem;
}

.course-title-logo {
  width: min(420px, 72vw);
  height: auto;
}

.course-title-page .course-title-author {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--nres-muted);
}