/* Hallmark · macrostructure: Long Document · tone: scholarly · anchor hue: cobalt */
/* Hallmark · pre-emit critique: P5 H5 E4 S5 R5 V4 */

html,
body {
  overflow-x: clip;
}

.learning-directory {
  color: var(--color-learning-ink);
  font-family: var(--font-learning-body);
  min-width: 0;
}

.page__inner-wrap > header {
  display: none;
}

.learning-directory a {
  color: inherit;
}

.learning-directory__breadcrumb {
  align-items: center;
  color: var(--color-learning-muted);
  display: flex;
  flex-wrap: nowrap;
  font-family: var(--font-learning-mono);
  font-size: var(--text-learning-xs);
  gap: var(--space-learning-2);
  letter-spacing: 0.04em;
  margin: 0 0 var(--space-learning-7);
}

.learning-directory__breadcrumb a,
.learning-directory__repo-link,
.course-row,
.course-row__actions a {
  text-decoration-thickness: var(--rule-learning-hairline);
  text-underline-offset: var(--space-learning-1);
}

.learning-directory__breadcrumb a,
.learning-directory__repo-link,
.course-row__actions a {
  white-space: nowrap;
}

.learning-directory__breadcrumb a,
.learning-directory__repo-link {
  align-items: center;
  display: inline-flex;
  min-height: 2.75rem;
}

.learning-directory__breadcrumb a:focus-visible,
.learning-directory__repo-link:focus-visible,
.semester summary:focus-visible,
.course-row:focus-visible,
.course-row__actions a:focus-visible {
  outline: 3px solid var(--color-learning-focus);
  outline-offset: var(--space-learning-1);
}

.learning-directory__intro {
  border-bottom: var(--rule-learning-hairline) solid var(--color-learning-rule);
  margin-bottom: var(--space-learning-7);
  padding-bottom: var(--space-learning-7);
}

.learning-directory__intro > p {
  color: var(--color-learning-accent);
  font-family: var(--font-learning-mono);
  font-size: var(--text-learning-xs);
  letter-spacing: 0.08em;
  margin: 0 0 var(--space-learning-3);
  text-transform: uppercase;
}

.learning-directory__intro h1 {
  color: var(--color-learning-ink);
  font-family: var(--font-learning-display);
  font-size: var(--text-learning-display);
  font-style: normal;
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.08;
  margin: 0;
  min-width: 0;
  overflow-wrap: anywhere;
}

.learning-directory__intro-meta {
  display: grid;
  gap: var(--space-learning-5);
  grid-template-columns: minmax(0, 1fr);
  margin-top: var(--space-learning-6);
}

.learning-directory__intro-meta p {
  color: var(--color-learning-muted);
  font-size: var(--text-learning-base);
  line-height: 1.7;
  margin: 0;
  max-width: 38rem;
}

.learning-directory__repo-link {
  border-bottom: var(--rule-learning-hairline) solid var(--color-learning-ink);
  font-weight: 700;
  padding-block: var(--space-learning-2);
  text-decoration: none;
  white-space: nowrap;
}

.learning-directory__semesters {
  border-top: var(--rule-learning-hairline) solid var(--color-learning-rule);
}

.semester {
  border-bottom: var(--rule-learning-hairline) solid var(--color-learning-rule);
}

.semester summary {
  align-items: center;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  list-style: none;
  min-height: 4.5rem;
  padding: var(--space-learning-4) 0;
}

.semester summary::-webkit-details-marker {
  display: none;
}

.semester summary::after {
  color: var(--color-learning-accent);
  content: "+";
  font-family: var(--font-learning-mono);
  font-size: var(--text-learning-lg);
  margin-left: var(--space-learning-4);
  transition: transform var(--dur-learning-short) var(--ease-learning-out);
}

.semester[open] summary::after {
  transform: rotate(45deg);
}

.semester__name {
  align-items: baseline;
  display: flex;
  font-family: var(--font-learning-display);
  font-size: var(--text-learning-lg);
  font-weight: 700;
  gap: var(--space-learning-4);
}

.semester__name > span {
  color: var(--color-learning-accent);
  font-family: var(--font-learning-mono);
  font-size: var(--text-learning-xs);
  font-weight: 400;
}

.semester__meta {
  color: var(--color-learning-muted);
  display: none;
  font-size: var(--text-learning-sm);
  margin-left: auto;
}

.semester__courses {
  background: var(--color-learning-paper-2);
  border-left: 3px solid var(--color-learning-accent);
  margin-bottom: var(--space-learning-5);
  padding: 0 var(--space-learning-5);
}

.course-row {
  align-items: center;
  border-bottom: var(--rule-learning-hairline) solid var(--color-learning-rule);
  display: flex;
  gap: var(--space-learning-4);
  justify-content: space-between;
  min-width: 0;
  padding: var(--space-learning-4) 0;
  text-decoration: none;
  transition: color var(--dur-learning-short) var(--ease-learning-out), transform var(--dur-learning-short) var(--ease-learning-out);
}

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

a.course-row:active {
  transform: translateX(0);
}

.course-row strong,
.course-row small {
  display: block;
}

.course-row strong {
  font-size: var(--text-learning-base);
}

.course-row small {
  color: var(--color-learning-muted);
  font-size: var(--text-learning-sm);
  font-weight: 400;
  margin-top: var(--space-learning-1);
}

.course-row--featured {
  align-items: flex-start;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

.course-row__actions {
  display: grid;
  gap: var(--space-learning-3);
  grid-template-columns: minmax(0, 1fr);
  width: 100%;
}

.course-row__actions a {
  align-items: center;
  border: var(--rule-learning-hairline) solid var(--color-learning-rule);
  border-radius: var(--radius-learning-control);
  display: inline-flex;
  justify-content: center;
  min-height: 2.75rem;
  padding: var(--space-learning-2) var(--space-learning-3);
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
}

.course-row__actions a:active {
  background: var(--color-learning-accent);
  color: var(--color-learning-accent-ink);
}

.learning-directory a[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.55;
  pointer-events: none;
}

.learning-directory a[data-state="loading"] {
  cursor: wait;
}

.learning-directory a[data-state="error"] {
  color: var(--color-learning-ink);
  text-decoration-style: wavy;
}

.learning-directory a[data-state="success"] {
  color: var(--color-learning-accent);
}

.learning-directory__note {
  color: var(--color-learning-muted);
  font-size: var(--text-learning-sm);
  margin: var(--space-learning-6) 0 0;
}

@media (hover: hover) and (pointer: fine) {
  a.course-row:hover {
    color: var(--color-learning-accent);
    transform: translateX(var(--space-learning-1));
  }

  .course-row__actions a:hover {
    border-color: var(--color-learning-accent);
    color: var(--color-learning-accent);
  }
}

@media (min-width: 25.9375rem) {
  .semester__meta {
    display: inline;
  }

  .course-row__actions {
    display: flex;
    flex-wrap: wrap;
    width: auto;
  }
}

@media (min-width: 48.0625rem) {
  .learning-directory__intro-meta {
    align-items: end;
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .learning-directory__repo-link {
    justify-self: end;
  }

  .course-row--featured {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .semester summary::after,
  .course-row {
    transition-duration: 0ms;
  }

  a.course-row:hover,
  a.course-row:active {
    transform: none;
  }
}