:root {
  --ink: #171717;
  --muted: #555;
  --rule: #8d8d8d;
  --rule-light: #d2d2d2;
  --link: #0645ad;
  --paper: #fff;
  --serif: "STIX Two Text", "Times New Roman", Times, serif;
  --math: "STIX Two Math", "Cambria Math", serif;
  --mono: "Fira Mono", "Courier New", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 18px; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--serif); font-size: 15px; line-height: 1.45; }
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
.skip-link { position: fixed; top: -70px; left: 14px; z-index: 20; padding: 7px 10px; border: 1px solid #000; background: #fff; color: #000; font-family: var(--mono); font-size: 10px; }
.skip-link:focus { top: 14px; }

.utility-nav,
.course-shell { width: min(calc(100% - 40px), 1120px); margin-inline: auto; }
.utility-nav { display: flex; justify-content: space-between; padding: 16px 0 13px; border-bottom: 1px solid var(--rule-light); font-family: var(--mono); font-size: 9px; }
.course-shell { padding: 42px 0 48px; }
.course-header { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 70px; align-items: end; padding-bottom: 31px; }
.course-label { margin: 0 0 10px; font-family: var(--mono); font-size: 9px; letter-spacing: .04em; text-transform: uppercase; }
.course-label span { padding: 0 4px; color: var(--muted); }
.course-heading h1 { margin: 0; font-size: clamp(35px, 6vw, 58px); font-weight: 500; letter-spacing: -.035em; line-height: .98; }
.course-description { max-width: 700px; margin: 16px 0 0; font-size: 16px; font-style: italic; }
.course-meta { margin: 0; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.course-meta div { display: grid; grid-template-columns: 80px 1fr; gap: 12px; padding: 6px 0; border-bottom: 1px solid var(--rule-light); }
.course-meta div:last-child { border-bottom: 0; }
.course-meta dt { color: var(--muted); font-family: var(--mono); font-size: 8px; text-transform: uppercase; }
.course-meta dd { margin: 0; font-size: 11px; }

.section-nav { display: flex; flex-wrap: wrap; gap: 6px 17px; padding: 10px 0; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); font-size: 11px; }
.section-nav span { color: var(--muted); font-variant: small-caps; }
.course-layout { display: grid; grid-template-columns: minmax(0, 1fr) 235px; gap: 70px; margin-top: 34px; }
.course-content section { margin-bottom: 32px; }
.course-content h2 { margin: 0 0 10px; font-size: 19px; font-weight: 600; }
.course-content h2 span { display: inline-block; width: 29px; font-family: var(--math); font-weight: 400; }
.course-content section > p { margin: 0 0 9px 29px; max-width: 760px; font-size: 12px; text-align: justify; }
.section-intro { color: var(--muted); font-style: italic; }
.outcome-list { margin: 8px 0 0 48px; padding-left: 16px; }
.outcome-list li { padding: 3px 0 3px 4px; font-size: 12px; }
.topic-list { margin: 0 0 0 29px; padding: 0; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); list-style: none; }
.topic-list > li { display: grid; grid-template-columns: 42px minmax(0, 1fr); padding: 12px 0; border-bottom: 1px solid var(--rule-light); }
.topic-list > li:last-child { border-bottom: 0; }
.topic-number { padding-top: 3px; font-family: var(--mono); font-size: 9px; color: var(--muted); }
.topic-body { min-width: 0; }
.topic-body h3 { margin: 0; font-size: 13px; font-weight: 500; }
.topic-body p { margin: 4px 0 0; font-size: 11px; }
.topic-description { color: var(--muted); }
.topic-slides { display: flex; flex-wrap: wrap; gap: 6px 18px; margin: 7px 0 0; padding: 0; list-style: none; font-size: 11px; }
.topic-slides li { max-width: 100%; overflow-wrap: anywhere; }
.topic-slides a { display: inline-block; padding: 3px 0; text-decoration: underline; text-underline-offset: 3px; }
.slide-detail { color: var(--muted); font-size: 10px; }
.slides-pending { color: var(--muted); font-style: italic; }
.topic-slides a:focus-visible { outline: 2px solid var(--link); outline-offset: 3px; }
.assessment-table { width: calc(100% - 29px); margin-left: 29px; border-collapse: collapse; border-top: 1.5px solid var(--ink); border-bottom: 1.5px solid var(--ink); font-size: 11px; text-align: left; }
.assessment-table th,
.assessment-table td { padding: 6px 8px; border-bottom: 1px solid var(--rule-light); }
.assessment-table thead th { border-bottom-color: var(--ink); font-size: 10px; }
.assessment-table tbody th { width: 60%; font-weight: 500; }
.resource-list { display: flex; flex-wrap: wrap; gap: 6px 24px; margin: 0 0 0 29px; padding: 9px 0; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); list-style: none; font-size: 11px; }

.course-aside { align-self: start; }
.course-aside section { padding: 11px 0 14px; border-top: 1px solid var(--ink); }
.course-aside h2 { margin: 0 0 8px; font-family: var(--mono); font-size: 9px; font-weight: 500; letter-spacing: .04em; text-transform: uppercase; }
.course-aside p { margin: 3px 0; color: #333; font-size: 10px; }
.adjacent-courses { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-top: 36px; padding: 13px 0; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); font-size: 12px; }
.adjacent-courses a { display: flex; flex-direction: column; }
.adjacent-courses a span { color: var(--muted); font-family: var(--mono); font-size: 8px; text-transform: uppercase; }
.adjacent-courses .next-course { text-align: right; }
.course-footer { display: flex; justify-content: space-between; gap: 20px; margin-top: 34px; color: var(--muted); font-size: 9px; }
.course-footer p { margin: 0; }

@media (max-width: 760px) {
  .course-header { grid-template-columns: 1fr; gap: 28px; }
  .course-layout { grid-template-columns: 1fr; gap: 16px; }
  .course-aside { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
}

@media (max-width: 520px) {
  .utility-nav,
  .course-shell { width: calc(100% - 32px); }
  .utility-nav { align-items: flex-start; flex-direction: column; gap: 4px; }
  .course-shell { padding-top: 30px; }
  .course-heading h1 { font-size: 38px; }
  .section-nav { gap: 6px 12px; }
  .course-content section > p,
  .topic-list,
  .assessment-table,
  .resource-list { width: auto; margin-left: 0; }
  .course-aside { grid-template-columns: 1fr; gap: 0; }
  .adjacent-courses { gap: 18px; }
  .course-footer { align-items: flex-start; flex-direction: column; }
}

@media print {
  @page { margin: 18mm 20mm; }
  .utility-nav,
  .skip-link,
  .section-nav,
  .adjacent-courses { display: none; }
  .course-shell { width: auto; padding: 0; }
  .course-header { grid-template-columns: 1fr 220px; }
  .course-layout { grid-template-columns: 1fr 180px; gap: 35px; }
  a { color: #000; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }