:root {
  --course-bg: #fbfbfb;
  --course-paper: #ffffff;
  --course-ink: #111224;
  --course-copy: #2f3140;
  --course-muted: #6d7080;
  --course-fine: #9a9ca8;
  --course-line: #e1e2e8;
  --course-line-strong: #c7cad8;
  --course-accent: #31468f;
  --course-accent-strong: #17265f;
  --course-warm: #8a5746;
  --course-tag-bg: #eef2ff;
  --course-soft-bg: #f5f7ff;
  --course-warm-soft: #fbf2ef;
  --course-heading-font: 'Libre Baskerville', Georgia, serif;
  --course-ui-font: 'Space Mono', ui-monospace, monospace;
  --course-prose-font: 'Space Mono', ui-monospace, monospace;
  --course-reading-font: var(--course-heading-font);
}

body.course-page {
  color: var(--course-copy);
  letter-spacing: 0;
  /* inherits font + gradient background + min-height:100vh from global /styles.css */
}

/* The global "ambient paper wash" (body::after in /styles.css) is hard-coded to
   height: min(2200px, 200vh) and absolutely positioned. On a short page that
   forces ~2200px of scrollable height and leaves dead space below the footer.
   Pin it to the real page height instead. */
body.course-page::after {
  height: auto;
  bottom: 0;
}

/* Sticky footer: the dashboard grows to fill the viewport so the footer stays
   at the bottom, even when modules are collapsed and the
   content is short. No white space below the footer, ever. */
body.course-page main {
  display: flex;
  flex-direction: column;
  font-family: var(--course-prose-font);
  min-height: 100vh;
}

.course-hero-kicker,
.course-overview-label,
.course-overview-meta,
.course-start-kicker,
.course-syllabus-head span,
.course-next-up span,
.course-module-copy small,
.course-lesson small,
.course-nav-label,
.course-nav > ol > li > a span,
.course-unit-label,
.course-unit-brief-label,
.course-family-grid span,
.course-reading-num,
.course-reading-tag,
.course-reading-time,
.course-reading-scope-label,
.course-toc-placeholder-label,
.course-cta-kicker,
.course-sketch-form label,
.course-progress-top span,
.course-progress-topline,
.course-progress-note,
.course-auth-status,
.course-auth-msg,
.course-sketch-status,
.course-primary-action,
.course-secondary-action,
.course-reading-link,
.course-done-toggle,
.course-auth-trigger,
.course-auth-link,
.course-auth-send,
.course-ws-pdfbtn,
.course-sketch-save {
  font-family: var(--course-ui-font);
}

body.course-page main > .course-dashboard {
  flex: 1 0 auto;
}

body.course-page footer {
  flex-shrink: 0;
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
  padding: 1rem 2.5rem 1.5rem;
}

body.course-page footer::before {
  left: 2.5rem;
  right: 2.5rem;
}

body.course-page .footer-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 1rem;
}

body.course-page .footer-legal,
body.course-page .footer-copy {
  font-size: 0.62rem;
  line-height: 1.55;
}

body.course-page .footer-legal {
  max-width: 78ch;
}

/* ── Hero ── */
.course-hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 6.5rem 2.5rem 2.5rem;
}

.course-hero--landing {
  max-width: none;
  width: 100%;
  margin: 0;
  padding: 7rem 2.5rem 4.75rem;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='heroNoise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23heroNoise)' opacity='0.05'/%3E%3C/svg%3E"),
    linear-gradient(135deg, #0f1733 0%, #17265f 58%, #263f83 100%);
  color: #fff;
}

.course-hero--landing ::selection {
  background: rgba(255, 255, 255, 0.82);
  color: #111;
}

.course-hero--landing ::-moz-selection {
  background: rgba(255, 255, 255, 0.82);
  color: #111;
}

.course-ack {
  max-width: 1000px;
  margin: 0 auto;
  padding: 2.75rem 2.5rem 3.5rem;
  border-top: 1px solid var(--course-line);
}

.course-ack-label {
  display: block;
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--course-accent);
  margin-bottom: 0.7rem;
}

.course-ack p {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--course-copy);
  max-width: 72ch;
}

.course-ack strong {
  color: var(--course-accent-strong);
}

.course-auth {
  margin-top: 1.1rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--course-line);
  text-align: center;
}

.course-auth-status {
  font-size: 0.78rem;
  color: var(--course-muted);
  margin-bottom: 0.35rem;
}

.course-auth-explain {
  max-width: 31rem;
  margin: 0 auto 0.75rem;
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--course-muted);
}

.course-auth-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: inherit;
  font-size: 0.76rem;
  color: #fff;
  background: var(--course-accent);
  border: none;
  border-radius: 7px;
  padding: 0.55rem 1rem;
  cursor: pointer;
  transition: background 0.18s ease;
}

.course-auth-trigger:hover {
  background: var(--course-accent-strong);
}

.course-auth-trigger:focus-visible {
  outline: 2px solid var(--course-accent);
  outline-offset: 2px;
}

.course-auth-ico {
  flex: none;
}

.course-auth-link {
  font-family: inherit;
  font-size: 0.74rem;
  color: var(--course-accent);
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.course-auth-link:hover {
  color: var(--course-accent-strong);
}

.course-auth-form {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-top: 0.6rem;
  text-align: left;
}

.course-auth-form[hidden] {
  display: none;
}

.course-auth-input {
  flex: 1;
  min-width: 0;
  font-family: inherit;
  font-size: 0.8rem;
  padding: 0.4rem 2.1rem 0.4rem 0.55rem;
  border: 1px solid var(--course-line-strong);
  border-radius: 6px;
  background: #fff;
  color: var(--course-copy);
}

.course-auth-input:focus {
  outline: none;
  border-color: var(--course-accent);
}

.course-auth-send {
  font-family: inherit;
  font-size: 0.72rem;
  padding: 0.4rem 0.7rem;
  border: none;
  border-radius: 6px;
  background: var(--course-accent);
  color: #fff;
  cursor: pointer;
  white-space: nowrap;
}

.course-auth-send:hover {
  background: var(--course-accent-strong);
}

.course-auth-msg {
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--course-muted);
  margin-top: 1rem;
  max-width: 34ch;
  margin-left: auto;
  margin-right: auto;
}

.course-auth-msg[hidden] {
  display: none;
}

.course-hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 320px);
  gap: 4rem;
  align-items: end;
}

.course-hero-copy {
  min-width: 0;
}

.course-page--landing .course-hero-kicker {
  color: rgba(245, 209, 191, 0.82);
}

.course-page--landing .course-hero h1 {
  color: #fff;
}

.course-page--landing .course-hero-summary {
  color: rgba(238, 242, 255, 0.86);
}

.course-hero-kicker {
  display: inline-block;
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--course-muted);
  margin-bottom: 1.25rem;
}

.course-hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.7rem);
  line-height: 1.1;
  color: var(--course-ink);
  margin-bottom: 1.25rem;
  max-width: 18ch;
  letter-spacing: 0;
}

.course-hero-summary {
  max-width: 62ch;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--course-copy);
}

.course-hero-metrics {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--course-line);
  border-bottom: 1px solid var(--course-line);
}

.course-page--landing .course-hero-metrics {
  border-color: rgba(255, 255, 255, 0.24);
}

.course-hero-metrics div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1.2rem;
  padding: 0.85rem 0;
}

.course-hero-metrics div + div {
  border-top: 1px solid var(--course-line);
}

.course-page--landing .course-hero-metrics div + div {
  border-color: rgba(255, 255, 255, 0.18);
}

.course-hero-metrics strong {
  color: var(--course-ink);
  font-family: 'Libre Baskerville', Georgia, serif;
  font-size: 1.35rem;
  line-height: 1;
}

.course-page--landing .course-hero-metrics strong {
  color: #fff;
}

.course-hero-metrics span {
  color: var(--course-muted);
  font-size: 0.72rem;
  line-height: 1.35;
  text-align: right;
}

.course-page--landing .course-hero-metrics span {
  color: rgba(238, 242, 255, 0.68);
}

.course-hero-summary + .course-hero-summary {
  margin-top: 1rem;
  color: var(--course-muted);
  font-size: 0.94rem;
}

/* Smaller hero for unit pages */
.course-hero--unit {
  padding: 6.5rem 2.5rem 2rem;
}

.course-hero--unit h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  max-width: 24ch;
}

.course-hero--unit .course-hero-summary {
  font-size: 0.94rem;
}

/* ── Overview cards (landing only) ── */
.course-overview {
  max-width: 1100px;
  margin: 1.5rem auto 4rem;
  padding: 0 2.5rem;
}

.course-overview-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--course-line);
  border-radius: 8px;
  background: var(--course-paper);
  overflow: hidden;
}

.course-overview-cell {
  display: block;
  padding: 1.4rem 1.5rem 1.5rem;
  color: inherit;
  text-decoration: none;
  transition: background 0.2s ease, transform 0.2s ease;
}

.course-overview-cell:hover {
  background: var(--course-soft-bg);
}

.course-overview-cell:focus-visible {
  outline: 2px solid var(--course-accent);
  outline-offset: -2px;
}

.course-overview-cell + .course-overview-cell {
  border-left: 1px solid var(--course-line);
}

.course-overview-label {
  display: block;
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--course-muted);
  margin-bottom: 0.6rem;
}

.course-overview-title {
  font-family: 'Libre Baskerville', Georgia, serif;
  font-size: 1.05rem;
  color: var(--course-ink);
  line-height: 1.3;
  margin-bottom: 0.5rem;
}

.course-overview-desc {
  font-size: 0.83rem;
  color: var(--course-muted);
  line-height: 1.55;
}

.course-overview-meta {
  display: block;
  margin-top: 1rem;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--course-accent);
}

/* ── Course dashboard ── */
.course-dashboard {
  max-width: 1100px;
  margin: 0 auto 1.25rem;
  padding: 0 2.5rem;
  display: grid;
  grid-template-columns: minmax(260px, 320px) 1fr;
  gap: 1.75rem;
  align-items: start;
}

.course-page--landing .course-dashboard {
  margin-top: -2.5rem;
  position: relative;
  z-index: 2;
}

.course-start-panel {
  position: sticky;
  top: 6rem;
  padding: 1.45rem;
  background:
    linear-gradient(180deg, rgba(245, 247, 255, 0.86), rgba(255, 255, 255, 0.96)),
    var(--course-paper);
  border: 1px solid var(--course-line);
  border-radius: 8px;
}

.course-page--landing .course-start-panel {
  box-shadow: 0 18px 48px rgba(17, 18, 36, 0.08);
}

.course-start-kicker,
.course-syllabus-head span {
  display: block;
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--course-accent);
  margin-bottom: 0.7rem;
}

.course-start-panel h2 {
  font-size: 1.35rem;
  line-height: 1.25;
  color: var(--course-ink);
  margin-bottom: 0.85rem;
}

.course-start-panel p {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--course-muted);
  margin-bottom: 1.2rem;
}

.course-start-progress {
  margin: 0 0 1.15rem;
  padding: 0.9rem 0;
  border-top: 1px solid var(--course-line);
  border-bottom: 1px solid var(--course-line);
}

.course-progress-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.course-progress-top span {
  color: var(--course-muted);
  font-size: 0.72rem;
}

.course-progress-top strong {
  color: var(--course-ink);
  font-family: 'Libre Baskerville', Georgia, serif;
  font-size: 1.05rem;
}

.course-progress-track {
  height: 0.45rem;
  overflow: hidden;
  border-radius: 999px;
  background: #e8ebf5;
}

.course-progress-fill {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--course-accent-strong), var(--course-accent));
  transition: width 0.25s ease;
}

.course-next-up {
  display: grid;
  gap: 0.25rem;
  margin-bottom: 1rem;
  padding: 0.95rem 1rem;
  color: inherit;
  text-decoration: none;
  background: var(--course-paper);
  border: 1px solid var(--course-line);
  border-radius: 8px;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.course-next-up:hover {
  border-color: var(--course-accent);
  background: #fbfcff;
  transform: translateY(-1px);
}

.course-next-up span {
  color: var(--course-accent);
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.course-next-up strong {
  color: var(--course-ink);
  font-size: 0.9rem;
  line-height: 1.35;
}

.course-next-up small {
  color: var(--course-muted);
  font-size: 0.68rem;
  line-height: 1.35;
}

.course-stat-grid {
  display: grid;
  gap: 0.65rem;
  margin-bottom: 1.3rem;
  padding: 1rem 0;
  border-top: 1px solid var(--course-line);
  border-bottom: 1px solid var(--course-line);
}

.course-stat-grid div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
}

.course-stat-grid strong {
  font-family: 'Libre Baskerville', Georgia, serif;
  font-size: 1rem;
  color: var(--course-ink);
  font-weight: 700;
}

.course-stat-grid span {
  font-size: 0.72rem;
  color: var(--course-muted);
  text-align: right;
}

.course-primary-action,
.course-secondary-action {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 2.6rem;
  padding: 0.7rem 0.9rem;
  border-radius: 8px;
  text-decoration: none;
  font-size: 0.78rem;
  line-height: 1.2;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.course-primary-action {
  background: var(--course-accent-strong);
  color: #fff;
}

.course-primary-action:hover {
  background: var(--course-accent);
  transform: translateY(-1px);
}

.course-secondary-action {
  margin-top: 0.55rem;
  color: var(--course-accent-strong);
  border: 1px solid var(--course-line-strong);
  background: var(--course-paper);
}

.course-secondary-action:hover {
  border-color: var(--course-accent);
  background: var(--course-soft-bg);
  transform: translateY(-1px);
}

.course-syllabus {
  background: var(--course-paper);
  border: 1px solid var(--course-line);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(17, 18, 36, 0.03), 0 22px 48px -34px rgba(17, 18, 36, 0.28);
}

.course-syllabus-head {
  padding: 1.7rem 1.6rem 1.5rem;
  border-bottom: 1px solid var(--course-line);
}

.course-syllabus-head h2 {
  font-family: 'Libre Baskerville', Georgia, serif;
  color: var(--course-ink);
  font-size: 1.4rem;
  line-height: 1.25;
  margin-bottom: 0.5rem;
}

.course-syllabus-head p {
  font-family: var(--course-prose-font);
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--course-muted);
  max-width: 56ch;
}

.course-module {
  border-bottom: 1px solid var(--course-line);
}

.course-module:last-child {
  border-bottom: 0;
}

.course-module > summary {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr) 0.7rem;
  gap: 0.95rem;
  align-items: center;
  padding: 1rem 1.35rem;
  cursor: pointer;
  list-style: none;
  transition: background 0.18s ease;
}

.course-module > summary::-webkit-details-marker {
  display: none;
}

.course-module > summary:hover,
.course-module[open] > summary {
  background: var(--course-soft-bg);
}

.course-module-num {
  display: block;
  width: auto;
  height: auto;
  border: 0;
  border-radius: 0;
  background: none;
  box-shadow: none;
  font-family: 'Libre Baskerville', Georgia, serif;
  font-weight: 700;
  font-size: 1.1rem;
  line-height: 1;
  text-align: center;
  font-variant-numeric: tabular-nums;
  color: var(--course-accent);
  transition: color 0.18s ease;
}

.course-module[open] .course-module-num {
  color: var(--course-accent-strong);
}

.course-module-copy {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  min-width: 0;
}

.course-module-copy strong {
  display: block;
  margin: 0;
  min-width: 0;
  font-family: 'Libre Baskerville', Georgia, serif;
  font-weight: 700;
  font-size: 1.02rem;
  line-height: 1.3;
  color: var(--course-ink);
  transition: color 0.18s ease;
}

.course-module > summary:hover .course-module-copy strong,
.course-module[open] .course-module-copy strong {
  color: var(--course-accent-strong);
}

.course-module-copy small {
  flex: none;
  font-family: 'Space Mono', ui-monospace, monospace;
  font-size: 0.62rem;
  letter-spacing: 0.03em;
  font-variant-numeric: tabular-nums;
  color: var(--course-muted);
  white-space: nowrap;
  padding: 0.14rem 0.5rem;
  border: 1px solid var(--course-line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.66);
}

.course-module > summary::after {
  content: '';
  grid-column: 3;
  justify-self: end;
  align-self: center;
  width: 0.5rem;
  height: 0.5rem;
  margin-top: -0.15rem;
  border-right: 1.5px solid var(--course-line-strong);
  border-bottom: 1.5px solid var(--course-line-strong);
  transform: rotate(45deg);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.course-module > summary:hover::after {
  border-color: var(--course-accent);
}

.course-module[open] > summary::after {
  margin-top: 0.15rem;
  border-color: var(--course-accent-strong);
  transform: rotate(-135deg);
}

.course-module-lessons {
  display: grid;
  padding: 0.35rem 1.2rem 1.15rem 4.05rem;
  background: linear-gradient(180deg, #fff 0%, #fcfdff 100%);
}

.course-lesson {
  display: grid;
  grid-template-columns: 0.9rem minmax(0, 1fr);
  gap: 0.75rem;
  align-items: center;
  min-height: 3rem;
  padding: 0.48rem 0.7rem;
  margin-left: -0.7rem;
  border-radius: 6px;
  text-decoration: none;
  transition: background 0.18s ease;
}

.course-lesson + .course-lesson {
  border-top: 1px solid rgba(199, 202, 216, 0.34);
}

.course-lesson-dot {
  position: relative;
  width: 0.72rem;
  height: 0.72rem;
  border: 1.5px solid #b8bdcf;
  border-radius: 999px;
  background: var(--course-paper);
  transition: border-color 0.18s ease, background 0.18s ease;
}

.course-lesson:hover {
  background: rgba(49, 70, 143, 0.055);
}

.course-lesson:hover .course-lesson-dot {
  border-color: var(--course-accent);
}

.course-lesson.is-complete .course-lesson-dot {
  border-color: var(--course-accent-strong);
  background: var(--course-accent-strong);
}

.course-lesson.is-started .course-lesson-dot {
  border-color: var(--course-accent);
  background: linear-gradient(90deg, var(--course-accent-strong) 50%, var(--course-paper) 50%);
}

.course-lesson.is-complete .course-lesson-dot::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 0.22rem;
  height: 0.38rem;
  border-right: 1.5px solid #fff;
  border-bottom: 1.5px solid #fff;
  transform: translate(-50%, -60%) rotate(45deg);
}

.course-lesson-body {
  display: grid;
  gap: 0.1rem;
  min-width: 0;
}

.course-lesson small {
  display: block;
  font-family: 'Space Mono', ui-monospace, monospace;
  font-size: 0.58rem;
  line-height: 1.25;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--course-accent);
  font-variant-numeric: tabular-nums;
}

.course-lesson strong {
  display: block;
  font-family: 'Libre Baskerville', Georgia, serif;
  font-weight: 400;
  font-size: 0.94rem;
  line-height: 1.35;
  color: var(--course-ink);
  transition: color 0.18s ease;
}

.course-lesson:hover strong {
  color: var(--course-accent-strong);
}

.course-lesson.is-complete strong {
  color: var(--course-muted);
}

.course-lesson.is-complete small {
  color: var(--course-muted);
}

.course-lesson:focus-visible {
  outline: 2px solid var(--course-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ── Shell: sidebar + content ── */
.course-shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 2.5rem 1.25rem;
  display: grid;
  grid-template-columns: minmax(230px, 270px) 1fr;
  gap: 2.4rem;
}

/* Unit pages: shell sits below the site nav and has its own top padding */
.course-shell--unit {
  padding-top: 6rem;
}

.course-nav {
  position: sticky;
  top: 6rem;
  align-self: start;
  padding-top: 0.5rem;
  max-height: calc(100vh - 8rem);
  overflow-y: auto;
}

.course-nav-label {
  display: block;
  font-size: 0.58rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--course-fine);
  margin-bottom: 1rem;
}

.course-nav ol {
  list-style: none;
  padding: 0;
  margin: 0;
}

.course-nav > ol > li {
  margin-bottom: 0.6rem;
}

.course-nav > ol > li > a {
  display: grid;
  gap: 0.18rem;
  font-size: 0.82rem;
  color: var(--course-copy);
  text-decoration: none;
  padding: 0.72rem 0.75rem;
  border-left: 2px solid transparent;
  background: transparent;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.course-nav > ol > li > a:hover,
.course-nav > ol > li > a.active {
  color: var(--course-ink);
  border-left-color: var(--course-accent-strong);
  background: var(--course-soft-bg);
}

.course-nav > ol > li > a span {
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--course-accent);
}

.course-nav > ol > li > a strong {
  font-family: 'Libre Baskerville', Georgia, serif;
  font-weight: 700;
  line-height: 1.3;
}

.course-nav > ol > li > a small {
  font-size: 0.7rem;
  color: var(--course-muted);
  line-height: 1.35;
}

.course-progress-panel {
  margin-top: 1.4rem;
  padding: 1rem;
  background: var(--course-paper);
  border: 1px solid var(--course-line);
  border-radius: 8px;
}

.course-progress-topline {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
  margin-bottom: 0.4rem;
  font-size: 0.72rem;
  color: var(--course-muted);
}

.course-progress-topline strong {
  color: var(--course-ink);
  font-weight: 400;
}

.course-progress-note {
  margin-top: 0.55rem;
  font-size: 0.68rem;
  line-height: 1.45;
  color: var(--course-fine);
}

/* ── Main content ── */
.course-content {
  min-width: 0;
  max-width: 860px;
}

.course-unit {
  padding-top: 1.5rem;
  padding-bottom: 1.25rem;
}

.course-unit-label {
  display: inline-block;
  font-size: 0.6rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--course-muted);
  margin-bottom: 1.25rem;
}

.course-unit h2 {
  font-size: clamp(1.9rem, 3vw, 2.75rem);
  line-height: 1.15;
  color: var(--course-ink);
  margin-bottom: 1.2rem;
  max-width: 22ch;
  letter-spacing: 0;
}

.course-unit-intro {
  font-family: var(--course-reading-font);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--course-copy);
  max-width: 60ch;
  margin-bottom: 1.25rem;
}

.course-section-header {
  font-family: 'Libre Baskerville', Georgia, serif;
  font-size: 1.12rem;
  color: var(--course-ink);
  margin-top: 2.25rem;
  margin-bottom: 1.25rem;
  font-weight: 700;
}

/* ── Unit reading plan ── */
.course-unit-brief {
  display: grid;
  grid-template-columns: minmax(180px, 0.75fr) minmax(0, 1.25fr);
  gap: 0;
  margin: 1.8rem 0 2rem;
  background: var(--course-paper);
  border: 1px solid var(--course-line);
  border-radius: 8px;
  overflow: hidden;
}

.course-unit-brief > div {
  padding: 1.15rem 1.25rem;
}

.course-unit-brief > div + div {
  border-left: 1px solid var(--course-line);
}

.course-unit-brief-label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--course-accent);
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.course-unit-brief strong {
  display: block;
  color: var(--course-ink);
  font-family: 'Libre Baskerville', Georgia, serif;
  font-size: 1.05rem;
  line-height: 1.35;
  margin-bottom: 0.45rem;
}

.course-unit-brief p,
.course-reading-route li {
  font-family: var(--course-reading-font);
  color: var(--course-muted);
  font-size: 0.82rem;
  line-height: 1.55;
}

.course-reading-route {
  display: grid;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.course-reading-route a {
  color: var(--course-accent-strong);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.course-reading-filter {
  display: inline-flex;
  align-items: center;
  margin: -0.75rem 0 1.5rem;
  border: 1px solid var(--course-line);
  border-radius: 6px;
  background: var(--course-paper);
}

.course-reading-filter-label {
  padding: 0 0.65rem;
  color: var(--course-accent);
  font-family: var(--course-ui-font);
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.course-reading-filter button {
  min-height: 2rem;
  padding: 0.38rem 0.65rem;
  border: 0;
  border-left: 1px solid var(--course-line);
  background: transparent;
  color: var(--course-muted);
  font-family: var(--course-ui-font);
  font-size: 0.64rem;
  line-height: 1.2;
  cursor: pointer;
}

.course-reading-filter button:hover {
  color: var(--course-ink);
  background: #f7f7f7;
}

.course-reading-filter button[aria-pressed="true"] {
  color: #fff;
  background: var(--course-accent-strong);
}

.course-reading.is-filtered {
  display: none;
}

.course-unit-brief--chooser {
  grid-template-columns: minmax(230px, 0.85fr) minmax(320px, 1.35fr);
  align-items: stretch;
  background:
    linear-gradient(135deg, rgba(245, 247, 255, 0.94), rgba(255, 255, 255, 0.98)),
    var(--course-paper);
}

.course-unit-brief--chooser > div {
  padding: 1.25rem 1.35rem;
}

.course-unit-brief--chooser .course-unit-brief-main {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.course-unit-brief--chooser .course-unit-brief-main p {
  max-width: 36ch;
}

.course-family-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
  margin: 0.75rem 0 0;
  padding: 0;
  list-style: none;
}

.course-family-grid a {
  display: grid;
  grid-template-columns: 1.45rem minmax(0, 1fr);
  gap: 0.6rem;
  align-items: center;
  min-height: 3rem;
  padding: 0.62rem 0.72rem;
  color: var(--course-ink);
  text-decoration: none;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--course-line);
  border-radius: 7px;
  transition: background 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.course-family-grid a:hover {
  background: #fff;
  border-color: var(--course-accent);
  transform: translateY(-1px);
}

.course-family-grid a:focus-visible {
  outline: 2px solid var(--course-accent);
  outline-offset: 2px;
}

.course-family-grid span {
  color: var(--course-accent);
  font-family: 'Space Mono', ui-monospace, monospace;
  font-size: 0.58rem;
  line-height: 1;
  letter-spacing: 0.08em;
  font-variant-numeric: tabular-nums;
}

.course-family-grid strong {
  margin: 0;
  color: var(--course-ink);
  font-size: 0.86rem;
  line-height: 1.28;
  font-weight: 700;
}

/* ── Reading cards ── */
.course-readings {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.course-reading {
  padding: 1.3rem 1.4rem 1.4rem;
  background: var(--course-paper);
  border: 1px solid var(--course-line);
  border-radius: 8px;
  scroll-margin-top: 6rem;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.course-reading--structured {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 260px);
  gap: 1rem 1.35rem;
  padding: 1.2rem;
}

.course-reading:hover {
  border-color: var(--course-line-strong);
  transform: translateY(-1px);
}

.course-reading-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.course-reading-num {
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  color: var(--course-fine);
  text-transform: uppercase;
}

.course-reading-tag {
  display: inline-block;
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--course-accent);
  background: var(--course-tag-bg);
  padding: 0.18rem 0.5rem;
  border-radius: 8px;
}

.course-reading-time {
  display: inline-block;
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  color: var(--course-muted);
  background: #f7f7f9;
  border: 1px solid var(--course-line);
  padding: 0.16rem 0.5rem;
  border-radius: 8px;
}

.course-reading-tag--optional {
  color: var(--course-muted);
  background: transparent;
  border: 1px solid var(--course-line);
}

.course-reading-tag--main {
  color: #fff;
  background: var(--course-accent);
}

.course-reading-main {
  min-width: 0;
}

.course-reading-aside {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.85rem;
  align-self: start;
}

.course-reading h3 {
  font-size: 1.12rem;
  line-height: 1.35;
  color: var(--course-ink);
  margin-bottom: 0.4rem;
  font-weight: 400;
}

/* ── Embedded video (responsive 16:9) ── */
.course-video {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  margin: 1.5rem 0 0.75rem;
  border: 1px solid var(--course-line);
  border-radius: 8px;
  overflow: hidden;
  background: #000;
}

.course-video iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.course-video--thumb {
  display: block;
}

.course-video--thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.course-video-cta {
  position: absolute;
  left: 0.75rem;
  bottom: 0.75rem;
  padding: 0.35rem 0.7rem;
  background: rgba(17, 17, 17, 0.85);
  color: #f5f5f2;
  font-family: "Space Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  border-radius: 4px;
}

.course-video--thumb:hover .course-video-cta {
  background: #111;
}

.course-video-caption {
  font-size: 0.78rem;
  color: var(--course-muted);
  font-style: italic;
  margin-bottom: 2rem;
}

.course-reading-authors {
  font-size: 0.82rem;
  color: var(--course-muted);
  margin-bottom: 0.85rem;
  font-style: italic;
}

.course-reading-why {
  font-family: var(--course-reading-font);
  font-size: 0.93rem;
  line-height: 1.65;
  color: var(--course-copy);
  margin-bottom: 0.9rem;
  max-width: 64ch;
}

.course-reading-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.78rem;
  color: var(--course-accent-strong);
  text-decoration: none;
  padding: 0.3rem 0;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.course-reading-link[target="_blank"]::after {
  content: '↗';
  font-size: 0.78em;
  line-height: 1;
}

.course-reading-link:hover {
  border-bottom-color: var(--course-accent-strong);
}

.course-reading-link--button {
  width: auto;
  justify-content: center;
  min-height: 1.9rem;
  padding: 0.32rem 0.58rem;
  color: var(--course-accent-strong);
  background: transparent;
  border: 1px solid var(--course-line-strong);
  border-radius: 6px;
  text-align: center;
  line-height: 1.25;
  font-size: 0.72rem;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.course-reading-link--button:hover {
  color: var(--course-accent-strong);
  background: var(--course-soft-bg);
  border-color: var(--course-accent);
  transform: translateY(-1px);
}

.course-reading-link--button::after {
  flex: none;
  color: var(--course-accent);
}

.course-reading-note {
  display: block;
  font-size: 0.75rem;
  color: var(--course-fine);
  font-style: italic;
  margin-top: 0.3rem;
}

/* "How much to read" callout — a prominent, bounded-reading instruction */
.course-reading-scope {
  display: block;
  margin: 0.15rem 0 1rem;
  padding: 0.85rem 0.95rem;
  background: var(--course-soft-bg);
  border: 1px solid var(--course-line);
  border-left: 3px solid var(--course-accent);
  border-radius: 6px;
}

.course-reading--structured .course-reading-scope {
  margin: 0;
}

.course-reading-scope-label {
  display: block;
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--course-accent);
  margin-bottom: 0.35rem;
}

.course-reading-scope p {
  font-family: var(--course-reading-font);
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--course-copy);
}

.course-reading-scope strong {
  color: var(--course-ink);
}

.course-reading-status {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 0.7rem;
}

.course-reading--structured .course-reading-status {
  grid-column: 1 / -1;
  align-items: center;
  margin-bottom: 0.1rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--course-line);
}

.course-reading-status .course-reading-meta {
  margin-bottom: 0;
}

.course-done-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  min-height: 2rem;
  padding: 0.35rem 0.55rem;
  border: 1px solid var(--course-line-strong);
  border-radius: 8px;
  background: var(--course-paper);
  color: var(--course-muted);
  font: inherit;
  font-size: 0.72rem;
  cursor: pointer;
  flex-shrink: 0;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.course-done-toggle::before {
  content: '';
  width: 0.82rem;
  height: 0.82rem;
  border: 1px solid var(--course-line-strong);
  border-radius: 3px;
  background: var(--course-paper);
}

.course-done-toggle[aria-pressed="true"] {
  color: var(--course-accent-strong);
  border-color: var(--course-accent);
  background: var(--course-soft-bg);
}

.course-done-toggle[aria-pressed="true"]::before {
  background: var(--course-accent-strong);
  border-color: var(--course-accent-strong);
  box-shadow: inset 0 0 0 2px var(--course-paper);
}

/* ── Placeholder card (theory of change etc.) ── */
.course-toc-placeholder {
  margin: 1.5rem 0 2.5rem;
  padding: 1.4rem 1.5rem;
  background: var(--course-soft-bg);
  border: 1px solid var(--course-line-strong);
  border-radius: 8px;
}

.course-toc-placeholder-label {
  display: block;
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--course-accent);
  margin-bottom: 0.7rem;
}

.course-toc-placeholder h3 {
  font-size: 1.05rem;
  color: var(--course-ink);
  margin-bottom: 0.65rem;
  font-weight: 700;
}

.course-toc-placeholder p {
  font-size: 0.94rem;
  color: var(--course-copy);
  line-height: 1.7;
  margin-bottom: 0.6rem;
  max-width: 64ch;
}

/* ── Prompts list ── */
.course-prompts {
  margin: 0;
  padding-left: 1.25rem;
  list-style: none;
}

.course-prompts li {
  font-family: var(--course-reading-font);
  font-size: 0.95rem;
  color: var(--course-copy);
  line-height: 1.7;
  margin-bottom: 0.65rem;
  position: relative;
  max-width: 62ch;
}

.course-prompts li::before {
  content: '·';
  position: absolute;
  left: -1.1rem;
  color: #9a9a94;
  top: 0;
}

/* ── Prev / next nav at bottom of unit ── */
.course-unit-pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--course-line);
}

.course-unit-pager a {
  display: block;
  padding: 1rem 1.2rem;
  background: var(--course-paper);
  border: 1px solid var(--course-line);
  border-radius: 8px;
  text-decoration: none;
  color: var(--course-copy);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.course-unit-pager a:hover {
  border-color: var(--course-accent);
  background: var(--course-soft-bg);
}

.course-unit-pager-label {
  display: block;
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--course-muted);
  margin-bottom: 0.35rem;
}

.course-unit-pager-title {
  font-family: 'Libre Baskerville', Georgia, serif;
  font-size: 0.95rem;
  color: var(--course-ink);
  line-height: 1.3;
}

.course-unit-pager .course-unit-pager-next {
  text-align: right;
}

.course-unit-pager a.is-disabled {
  opacity: 0.4;
  pointer-events: none;
}

/* Defensive reset — the site's global "nav { position: fixed }" rule used to
   hijack the pager when it was a <nav>. Pager is now a <div>, this stays as
   a guard. */
.course-unit-pager {
  position: static;
}

/* ── Bottom CTA strip ── */
.course-cta {
  margin: 3rem auto 0;
  max-width: 1100px;
  padding: 2.25rem 2.5rem;
  background: var(--course-paper);
  border: 1px solid var(--course-line);
  border-radius: 8px;
}

.course-cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2.5rem;
  flex-wrap: wrap;
}

.course-cta-text {
  flex: 1;
  min-width: 280px;
}

.course-cta-kicker {
  display: block;
  font-size: 0.6rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--course-accent);
  margin-bottom: 0.55rem;
}

.course-cta h2 {
  font-family: 'Libre Baskerville', Georgia, serif;
  font-size: 1.35rem;
  line-height: 1.25;
  color: var(--course-ink);
  margin-bottom: 0.55rem;
  font-weight: 400;
}

.course-cta p {
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--course-muted);
  max-width: 60ch;
  margin: 0;
}

.course-cta-button {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.75rem 1.2rem;
  background: var(--course-accent-strong);
  color: #fff;
  text-decoration: none;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 500;
  white-space: nowrap;
  transition: background 0.2s ease, transform 0.2s ease;
}

.course-cta-button:hover {
  background: var(--course-accent);
  transform: translateY(-1px);
}

/* ── HAP callout (kept for compatibility on unit pages) ── */
.course-hap-callout {
  margin: 3rem auto 0;
  max-width: 1100px;
  padding: 1.5rem 2rem;
  background: var(--course-paper);
  border: 1px solid var(--course-line);
  border-radius: 8px;
}

.course-hap-callout-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.course-hap-callout p {
  font-size: 0.94rem;
  color: var(--course-copy);
  line-height: 1.7;
  max-width: 52ch;
}

.course-hap-callout a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--course-accent-strong);
  text-decoration: none;
  border-bottom: 1px solid var(--course-accent-strong);
  padding-bottom: 2px;
  white-space: nowrap;
}

/* ── Responsive ── */
@media (max-width: 980px) {
  .course-hero-inner {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }

  .course-hero-metrics {
    grid-template-columns: repeat(3, 1fr);
    border: 1px solid var(--course-line);
    border-radius: 8px;
    overflow: hidden;
    background: var(--course-paper);
  }

  .course-hero-metrics div {
    display: block;
    padding: 0.9rem 1rem;
  }

  .course-hero-metrics div + div {
    border-top: 0;
    border-left: 1px solid var(--course-line);
  }

  .course-hero-metrics span {
    display: block;
    margin-top: 0.35rem;
    text-align: left;
  }

  .course-page--landing .course-hero-metrics {
    background: rgba(255, 255, 255, 0.055);
    border-color: rgba(255, 255, 255, 0.18);
  }

  .course-page--landing .course-hero-metrics div + div {
    border-color: rgba(255, 255, 255, 0.16);
  }

  .course-dashboard {
    grid-template-columns: 1fr;
  }

  .course-start-panel {
    position: static;
  }

  .course-shell {
    grid-template-columns: 1fr;
    gap: 1.75rem;
    width: 100%;
  }

  .course-nav {
    position: static;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    max-height: none;
    padding: 1.25rem 1.5rem;
    border: 1px solid var(--course-line);
    border-radius: 8px;
    background: var(--course-paper);
  }

  .course-overview-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .course-overview-cell + .course-overview-cell { border-left: none; }
  .course-overview-cell:nth-child(odd) { border-right: 1px solid var(--course-line); }
  .course-overview-cell:nth-child(-n+2) { border-bottom: 1px solid var(--course-line); }
}

@media (max-width: 760px) {
  .course-module-copy {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.45rem;
  }

  .course-module-copy small {
    flex: 0 1 auto;
    max-width: 100%;
    white-space: normal;
  }

  .course-unit-brief {
    grid-template-columns: 1fr;
  }

  .course-unit-brief > div + div {
    border-left: 0;
    border-top: 1px solid var(--course-line);
  }

  .course-unit-brief--chooser {
    grid-template-columns: 1fr;
  }

  .course-unit-brief--chooser .course-unit-brief-main p {
    max-width: 58ch;
  }

  .course-reading--structured {
    grid-template-columns: 1fr;
  }

  .course-reading--structured .course-reading-status {
    align-items: flex-start;
  }

  .course-reading-aside {
    gap: 0.75rem;
  }
}

@media (max-width: 600px) {
  .course-hero { padding: 5.5rem 1.5rem 2rem; }
  .course-hero--landing { padding: 5.5rem 1.5rem 4.25rem; }
  .course-hero-inner { gap: 1.25rem; }
  .course-hero-metrics { grid-template-columns: 1fr; }
  .course-hero-metrics div + div {
    border-left: 0;
    border-top: 1px solid var(--course-line);
  }
  .course-dashboard { padding: 0 1.5rem 1rem; margin-bottom: 0; }
  .course-stat-grid div { display: block; }
  .course-stat-grid span { display: block; text-align: left; margin-top: 0.1rem; }
  .course-module > summary { grid-template-columns: 1.45rem minmax(0, 1fr) 0.7rem; gap: 0.7rem; padding: 0.9rem 1rem; }
  .course-module-num { width: auto; height: auto; font-size: 1rem; }
  .course-module-copy { gap: 0.55rem; }
  .course-module-copy strong { font-size: 1rem; }
  .course-module-copy small { font-size: 0.58rem; padding: 0.1rem 0.42rem; }
  .course-module-lessons { padding: 0.25rem 0.85rem 0.9rem 2.6rem; }
  .course-lesson { grid-template-columns: 0.85rem minmax(0, 1fr); gap: 0.65rem; min-height: 3rem; margin-left: -0.55rem; padding: 0.5rem 0.55rem; }
  .course-lesson strong { font-size: 0.9rem; }
  .course-lesson small { font-size: 0.54rem; }
  .course-overview { padding: 0 1.5rem; margin-bottom: 2.5rem; }
  .course-overview-grid { grid-template-columns: 1fr; }
  .course-overview-cell { border-left: none !important; border-right: none !important; }
  .course-overview-cell + .course-overview-cell { border-top: 1px solid var(--course-line); }
  .course-overview-cell:nth-child(-n+2) { border-bottom: none; }
  .course-shell {
    max-width: 100%;
    padding: 0 1rem 1.5rem;
    overflow-x: hidden;
  }
  .course-shell--unit { padding-top: 5.5rem; }
  .course-content,
  .course-unit,
  .course-nav,
  .course-reading,
  .course-unit-brief,
  .course-video {
    width: 100%;
    max-width: 100%;
    min-width: 0;
  }
  .course-unit h2,
  .course-unit-intro,
  .course-reading-why,
  .course-prompts li {
    max-width: 100%;
  }
  .course-unit-brief > div { padding: 1rem; }
  .course-family-grid { grid-template-columns: 1fr; }
  body.course-page footer { padding: 1rem 1.5rem 1.25rem; }
  body.course-page footer::before { left: 1.5rem; right: 1.5rem; }
  .course-reading { padding: 1.1rem 1.2rem 1.25rem; }
  .course-reading-status { flex-direction: column; gap: 0.6rem; }
  .course-done-toggle { align-self: flex-start; }
  .course-hap-callout-inner { flex-direction: column; align-items: flex-start; }
  .course-unit-pager { grid-template-columns: 1fr; }
  .course-unit-pager .course-unit-pager-next { text-align: left; }
}


/* ---- Unit 4: project sketch submission ---- */
.course-sketch{margin-top:1.5rem;border:1px solid #e2e1dc;background:#fff;padding:1.75rem}
.course-sketch-note{font-size:.85rem;color:#4a4a4a;margin:0 0 1rem;line-height:1.7}
.course-sketch-note:last-child{margin-bottom:0}
.course-sketch-form{display:flex;flex-direction:column;gap:1.1rem}
.course-sketch-form label{display:flex;flex-direction:column;gap:.45rem;font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;color:#6d6d68}
.course-sketch-form input,.course-sketch-form textarea{font-family:var(--course-ui-font);font-size:.85rem;padding:.65rem .75rem;border:1px solid #d8d7d2;background:#fbfbfa;color:#1a1a1a;border-radius:0}
.course-sketch-form input:focus,.course-sketch-form textarea:focus{outline:none;border-color:#31468f}
.course-sketch-form textarea{resize:vertical;line-height:1.6}
.course-sketch-foot{display:flex;align-items:center;gap:1rem;flex-wrap:wrap}
.course-sketch-save{font-family:'Space Mono',monospace;font-size:.8rem;padding:.7rem 1.4rem;background:#17265f;color:#fff;border:none;cursor:pointer}
.course-sketch-save:hover{background:#31468f}
.course-sketch-status{font-size:.75rem;color:#6d6d68}

/* ---- Unit 4: theory-of-change worksheet ---- */
.course-worksheet{margin-top:1.5rem;border:1px solid #e2e1dc;background:#fff;padding:1.75rem;display:flex;flex-direction:column;gap:1.4rem}
.course-ws-item{display:flex;flex-direction:column;gap:.5rem}
.course-ws-item[hidden]{display:none!important}
.course-ws-q{font-family:var(--course-reading-font);font-size:.9rem;line-height:1.65;color:#1a1a1a}
.course-worksheet textarea{font-family:var(--course-ui-font);font-size:.85rem;padding:.65rem .75rem;border:1px solid #d8d7d2;background:#fbfbfa;color:#1a1a1a;resize:vertical;line-height:1.6;border-radius:0}
.course-worksheet textarea:focus{outline:none;border-color:#31468f}
.course-ws-copybox{width:100%;min-height:11rem;font-family:var(--course-ui-font);font-size:.78rem;line-height:1.6;padding:.75rem;border:1px solid var(--course-line-strong);background:#fbfbfa;color:#1a1a1a;resize:vertical}
.course-ws-copybox[hidden]{display:none}

.course-subhead{font-family:'Libre Baskerville',Georgia,serif;font-weight:400;font-size:1.02rem;margin:2rem 0 .75rem}

/* cards with no scope note: single column, link inline after the blurb */
.course-reading--single{grid-template-columns:minmax(0,1fr)}
.course-reading--single .course-reading-link--button{display:inline-block;margin-top:1.1rem}

/* export actions as quiet text links */
.course-ws-pdfbtn{background:none;border:none;padding:0;color:#6d6d68;font-size:.78rem;text-decoration:underline;text-underline-offset:3px;cursor:pointer}
.course-ws-pdfbtn:hover{color:#31468f;border:none}

/* export actions styled like the reading Link chips */
.course-ws-pdfbtn{background:#fff;border:1px solid var(--course-line, #e2e1dc);border-radius:6px;padding:.45rem .9rem;color:#1a1a1a;font-size:.75rem;text-decoration:none;cursor:pointer}
.course-ws-pdfbtn:hover{border-color:#31468f;color:#31468f}

.course-feedback-note {
  margin: 2.5rem 0 0;
  font-size: 0.78rem;
  color: var(--course-muted);
  text-align: center;
}

.course-feedback-note a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.course-feedback-note a:hover {
  color: var(--course-copy);
}

.course-closing {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  max-width: 1100px;
  width: 100%;
  margin: 3rem auto 0;
  padding: 1.1rem 2.5rem;
  border-top: 1px solid var(--course-line);
  border-bottom: 1px solid var(--course-line);
  text-align: left;
}

.course-closing-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  font-family: "Space Mono", monospace;
  font-size: 0.7rem;
  line-height: 1.2;
  letter-spacing: 0;
  color: var(--course-accent-strong);
  background: #fff;
  border: 1px solid var(--course-line-strong);
  border-radius: 6px;
  padding: 0.55rem 0.8rem;
  text-decoration: none;
  transition: border-color 0.18s ease, color 0.18s ease, background 0.18s ease;
}

.course-closing-cta:hover {
  color: var(--course-accent);
  border-color: var(--course-accent);
  background: var(--course-soft-bg);
}

.course-closing-ack a {
  color: var(--course-muted);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.course-closing-ack a:hover { color: var(--course-copy); }

.course-closing-ack {
  max-width: 54rem;
  margin: 0;
  font-size: 0.66rem;
  line-height: 1.6;
  color: var(--course-fine);
  text-align: right;
}

@media (max-width: 760px) {
  body.course-page .footer-inner {
    grid-template-columns: 1fr;
    gap: 0.45rem;
  }

  body.course-page .footer-legal {
    max-width: none;
  }

  .course-closing {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 2rem;
    padding: 1rem 1.5rem;
  }

  .course-closing-ack {
    text-align: left;
  }
}


/* Plan A verification board */
.course-workmap {
  margin: 2rem 0 2.25rem;
}

.course-workmap-intro {
  max-width: 66ch;
  margin-bottom: 1.4rem;
}

.course-workmap-kicker,
.course-workmap-toolbar > span,
.course-workmap-detail-head > span,
.course-workmap-detail-grid > div > span {
  display: block;
  font-family: var(--course-ui-font);
  font-size: 0.68rem;
  line-height: 1.4;
  text-transform: uppercase;
  color: var(--course-accent);
}

.course-workmap-kicker {
  margin-bottom: 0.65rem;
}

.course-workmap-intro h4 {
  max-width: 27ch;
  margin: 0 0 0.8rem;
  color: var(--course-ink);
  font-family: var(--course-heading-font);
  font-size: 1.55rem;
  font-weight: 400;
  line-height: 1.25;
}

.course-workmap-intro p {
  margin: 0 0 0.7rem;
  color: var(--course-copy);
  font-family: var(--course-reading-font);
  font-size: 0.9rem;
  line-height: 1.7;
}

.course-workmap-intro .course-workmap-source {
  margin: 0.85rem 0 0;
  color: var(--course-fine);
  font-family: var(--course-ui-font);
  font-size: 0.66rem;
  line-height: 1.55;
}

.course-workmap-method {
  margin-bottom: 1rem;
  border: 1px solid var(--course-line-strong);
  background: #f8f8f7;
}

.course-workmap-method > div {
  display: grid;
  grid-template-columns: minmax(170px, 0.55fr) minmax(0, 1.45fr);
  gap: 1.2rem;
  align-items: baseline;
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--course-line);
}

.course-workmap-method > div > span {
  color: var(--course-accent);
  font-family: var(--course-ui-font);
  font-size: 0.64rem;
  line-height: 1.4;
  text-transform: uppercase;
}

.course-workmap-method h5 {
  margin: 0 0 0.3rem;
  color: var(--course-ink);
  font-family: var(--course-heading-font);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.35;
}

.course-workmap-method > div p {
  grid-column: 2;
  margin: 0;
  color: var(--course-muted);
  font-family: var(--course-reading-font);
  font-size: 0.78rem;
  line-height: 1.55;
}

.course-workmap-method ol {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
}

.course-workmap-method li {
  min-width: 0;
  padding: 0.8rem;
}

.course-workmap-method li + li {
  border-left: 1px solid var(--course-line);
}

.course-workmap-method li > span {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--course-accent);
  font-family: var(--course-ui-font);
  font-size: 0.6rem;
  line-height: 1;
}

.course-workmap-method li strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--course-ink);
  font-family: var(--course-heading-font);
  font-size: 0.78rem;
  line-height: 1.3;
}

.course-workmap-method li p {
  margin: 0;
  color: var(--course-muted);
  font-family: var(--course-reading-font);
  font-size: 0.67rem;
  line-height: 1.45;
}

.course-workmap-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: 0;
  border: 1px solid var(--course-line-strong);
  border-bottom: 0;
  background: var(--course-paper);
}

.course-workmap-stats > div {
  min-width: 0;
  padding: 0.85rem 0.95rem 0.9rem;
}

.course-workmap-stats > div:nth-child(even) {
  border-left: 1px solid var(--course-line);
}

.course-workmap-stats > div:nth-child(n+3) {
  border-top: 1px solid var(--course-line);
}

.course-workmap-stats > div > div {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  margin-bottom: 0.4rem;
}

.course-workmap-stats strong {
  color: var(--work-status);
  font-family: var(--course-heading-font);
  font-size: 1.45rem;
  line-height: 1;
}

.course-workmap-stats span {
  color: var(--course-muted);
  font-family: var(--course-ui-font);
  font-size: 0.68rem;
  line-height: 1.35;
}

.course-workmap-stats p {
  margin: 0;
  color: var(--course-muted);
  font-family: var(--course-reading-font);
  font-size: 0.7rem;
  line-height: 1.5;
}

.course-workmap [data-status="active"] { --work-status: #246b55; --work-status-soft: #eaf5f0; --work-status-line: #b8d9cc; }
.course-workmap [data-status="uncertain"] { --work-status: #926414; --work-status-soft: #fff4d8; --work-status-line: #ead39c; }
.course-workmap [data-status="not-started"] { --work-status: #476681; --work-status-soft: #edf3f7; --work-status-line: #c3d3df; }
.course-workmap [data-status="not-on-track"] { --work-status: #9b4353; --work-status-soft: #faecef; --work-status-line: #e5bdc5; }

.course-workmap-toolbar {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--course-line-strong);
  border-bottom: 0;
  background: #f8f8f7;
}

.course-workmap-toolbar > span {
  flex: none;
  color: var(--course-muted);
  font-size: 0.64rem;
}

.course-workmap-filters {
  display: flex;
  max-width: 100%;
  min-width: 0;
  overflow-x: auto;
  border: 1px solid var(--course-line);
  border-radius: 6px;
  background: var(--course-paper);
  scrollbar-width: thin;
}

.course-workmap-filters button {
  --filter-color: var(--course-accent-strong);
  display: inline-flex;
  flex: none;
  align-items: center;
  gap: 0.35rem;
  min-height: 2rem;
  padding: 0.38rem 0.55rem;
  border: 0;
  background: transparent;
  color: var(--course-muted);
  font-family: var(--course-ui-font);
  font-size: 0.64rem;
  line-height: 1.2;
  cursor: pointer;
}

.course-workmap-filters button[data-work-filter="active"] { --filter-color: #246b55; }
.course-workmap-filters button[data-work-filter="uncertain"] { --filter-color: #926414; }
.course-workmap-filters button[data-work-filter="not-started"] { --filter-color: #476681; }
.course-workmap-filters button[data-work-filter="not-on-track"] { --filter-color: #9b4353; }

.course-workmap-filters button + button {
  border-left: 1px solid var(--course-line);
}

.course-workmap-filters button:hover {
  color: var(--course-ink);
  background: #f7f7f7;
}

.course-workmap-filters button[aria-pressed="true"] {
  color: #fff;
  background: var(--filter-color);
}

.course-workmap-filters button span {
  opacity: 0.72;
  font-variant-numeric: tabular-nums;
}

.course-workmap-board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-rows: auto auto auto;
  grid-template-areas:
    "network repro"
    "recompute physical"
    "complete complete";
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--course-line-strong);
  background: var(--course-paper);
}

.course-workmap-domain {
  display: flex;
  min-width: 0;
  min-height: 0;
  flex-direction: column;
  padding: 0.85rem;
  background: var(--course-paper);
}

.course-workmap-domain--network { grid-area: network; border-right: 1px solid var(--course-line); border-bottom: 1px solid var(--course-line); }
.course-workmap-domain--repro { grid-area: repro; border-bottom: 1px solid var(--course-line); }
.course-workmap-domain--recompute { grid-area: recompute; border-right: 1px solid var(--course-line); border-bottom: 1px solid var(--course-line); }
.course-workmap-domain--physical { grid-area: physical; border-bottom: 1px solid var(--course-line); }
.course-workmap-domain--complete { grid-area: complete; }

.course-workmap-domain > header {
  display: grid;
  grid-template-columns: 1.55rem minmax(0, 1fr);
  gap: 0.55rem;
  align-items: start;
  min-height: 3.05rem;
  margin-bottom: 0.4rem;
}

.course-workmap-domain > header > span {
  color: var(--course-accent);
  font-family: var(--course-heading-font);
  font-size: 0.88rem;
  line-height: 1.35;
}

.course-workmap-domain h5 {
  margin: 0 0 0.15rem;
  color: var(--course-ink);
  font-family: var(--course-heading-font);
  font-size: 0.88rem;
  font-weight: 700;
  line-height: 1.3;
}

.course-workmap-domain header p {
  margin: 0;
  color: var(--course-fine);
  font-family: var(--course-ui-font);
  font-size: 0.64rem;
  line-height: 1.35;
}

.course-workmap-domain ul {
  display: grid;
  gap: 0.2rem;
  min-width: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.course-workmap-domain--complete ul {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.45rem;
}

.course-workmap-domain li {
  min-width: 0;
}

.course-workmap-domain li[hidden],
.course-workmap-empty[hidden] {
  display: none;
}

.course-workmap-domain button[data-work-item] {
  display: grid;
  width: 100%;
  min-height: 2.15rem;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.5rem;
  align-items: center;
  padding: 0.38rem 0.45rem;
  border: 1px solid transparent;
  border-radius: 4px;
  background: transparent;
  color: var(--course-copy);
  text-align: left;
  cursor: pointer;
  transition: background 0.16s ease, color 0.16s ease;
}

.course-workmap-domain button[data-work-item]:hover,
.course-workmap-domain button[data-work-item].is-selected {
  color: var(--course-ink);
  background: var(--work-status-soft);
}

.course-workmap-domain button[data-work-item].is-selected {
  border-color: var(--work-status-line);
}

.course-workmap-domain button[data-work-item] > span {
  min-width: 0;
  overflow-wrap: anywhere;
  font-family: var(--course-reading-font);
  font-size: 0.72rem;
  line-height: 1.3;
}

.course-workmap-domain button[data-work-item] small {
  max-width: 7rem;
  color: var(--work-status);
  background: var(--work-status-soft);
  border: 1px solid var(--work-status-line);
  border-radius: 3px;
  padding: 0.2rem 0.35rem;
  font-family: var(--course-ui-font);
  font-size: 0.6rem;
  line-height: 1.2;
  text-align: right;
}

.course-workmap-empty {
  margin: auto 0;
  color: var(--course-fine);
  font-family: var(--course-ui-font);
  font-size: 0.68rem;
  line-height: 1.5;
  text-align: center;
}

.course-workmap-detail {
  padding: 1.2rem 1.3rem 1.3rem;
  border: 1px solid var(--course-line-strong);
  border-top: 0;
  background: #f8f8f7;
}

.course-workmap-detail-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.45rem;
}

.course-workmap-detail-head > span {
  color: var(--course-muted);
}

.course-workmap-detail-head small {
  display: inline-flex;
  align-items: center;
  gap: 0;
  padding: 0.28rem 0.48rem;
  color: var(--work-status);
  background: var(--work-status-soft);
  border: 1px solid var(--work-status-line);
  border-radius: 3px;
  font-family: var(--course-ui-font);
  font-size: 0.64rem;
  line-height: 1.3;
}

.course-workmap-detail > h5 {
  margin: 0 0 1rem;
  color: var(--course-ink);
  font-family: var(--course-heading-font);
  font-size: 1.2rem;
  font-weight: 400;
  line-height: 1.3;
}

.course-workmap-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
}

.course-workmap-detail-grid > div {
  min-width: 0;
  padding: 0 1rem 1rem 0;
}

.course-workmap-detail-grid > div:nth-child(even) {
  padding-left: 1rem;
  border-left: 1px solid var(--course-line);
}

.course-workmap-detail-grid > div:nth-child(n+3) {
  padding-top: 1rem;
  padding-bottom: 0;
  border-top: 1px solid var(--course-line);
}

.course-workmap-detail-grid > div > span {
  margin-bottom: 0.38rem;
  color: var(--course-accent);
  font-size: 0.6rem;
}

.course-workmap-detail-grid p {
  margin: 0;
  color: var(--course-copy);
  font-family: var(--course-reading-font);
  font-size: 0.75rem;
  line-height: 1.55;
}

.course-workmap-source {
  color: var(--course-fine);
}

.course-workmap-source a {
  color: var(--course-muted);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* Monochrome status treatment + clearer boxes (2026-07-10) */
.course-workmap [data-status] { --work-status: #45443f; --work-status-soft: #efeeea; --work-status-line: #d6d5cf; }
.course-workmap-filters button[data-work-filter] { --filter-color: #2a2a27; }
.course-workmap-domain button[data-work-item] { border-color: var(--course-line-strong); }
.course-workmap-domain button[data-work-item].is-selected { border-color: var(--course-ink); }


/* Method box: crisper ruled lines (2026-07-10) */
.course-workmap-method > div { border-bottom-color: var(--course-line-strong); }
.course-workmap-method li + li { border-left-color: var(--course-line-strong); }