.gallery-intro {
  max-width: 46rem;
  margin-bottom: 0;
  color: var(--body);
  font-size: 1.06rem;
  line-height: 1.65;
}

.gallery-shell {
  position: relative;
  left: 50%;
  width: min(1120px, calc(100vw - 2rem));
  margin-top: 2.25rem;
  transform: translateX(-50%);
}

.gallery-course-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 3rem;
}

.gallery-course-nav a {
  display: inline-flex;
  min-height: 2.45rem;
  align-items: center;
  padding: 0.52rem 0.82rem;
  color: var(--body);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
}

.gallery-course-nav a:hover,
.gallery-course-nav a:focus-visible {
  color: var(--osu-scarlet-dark);
  border-color: var(--osu-scarlet);
}

.gallery-course {
  scroll-margin-top: 5rem;
}

.gallery-course + .gallery-course {
  margin-top: 4.5rem;
  padding-top: 4rem;
  border-top: 1px solid var(--line);
}

.gallery-course-header {
  position: relative;
  display: flex;
  width: 100%;
  align-items: center;
  margin: 0;
  padding: 0.35rem 3rem 0.35rem 1rem;
  border-left: 4px solid var(--osu-scarlet);
  cursor: pointer;
  list-style: none;
}

.gallery-course-details[open] > .gallery-course-header {
  margin-bottom: 1.6rem;
}

.gallery-course-header::-webkit-details-marker {
  display: none;
}

.gallery-course-header::after {
  position: absolute;
  top: 50%;
  right: 0.45rem;
  width: 0.72rem;
  height: 0.72rem;
  border-right: 2px solid var(--osu-scarlet);
  border-bottom: 2px solid var(--osu-scarlet);
  content: "";
  transform: translateY(-50%) rotate(45deg);
  transition: transform 0.16s ease;
}

.gallery-course-details[open] > .gallery-course-header::after {
  transform: translateY(-50%) rotate(225deg);
}

.gallery-course-header:hover h2,
.gallery-course-header:focus-visible h2 {
  color: var(--osu-scarlet-dark);
}

.gallery-course-header:focus-visible {
  outline: 3px solid var(--osu-scarlet);
  outline-offset: 3px;
}

.gallery-course-header h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.55rem, 3vw, 2.15rem);
  line-height: 1.12;
}

.gallery-group {
  border-top: 1px solid var(--line);
}

.gallery-group:last-child {
  border-bottom: 1px solid var(--line);
}

.gallery-group > summary {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
  padding: 1.1rem 2.35rem 1.1rem 0;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

.gallery-group > summary::-webkit-details-marker {
  display: none;
}

.gallery-group > summary::after {
  position: absolute;
  right: 0.25rem;
  width: 0.58rem;
  height: 0.58rem;
  border-right: 2px solid var(--osu-scarlet);
  border-bottom: 2px solid var(--osu-scarlet);
  content: "";
  transform: rotate(45deg);
  transition: transform 0.16s ease;
}

.gallery-group[open] > summary::after {
  transform: rotate(225deg);
}

.gallery-group > summary:hover .gallery-group-title,
.gallery-group > summary:focus-visible .gallery-group-title {
  color: var(--osu-scarlet-dark);
}

.gallery-group > summary:focus-visible {
  outline: 3px solid var(--osu-scarlet);
  outline-offset: 3px;
}

.gallery-group-title {
  font-size: 1rem;
  font-weight: 750;
  line-height: 1.3;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.15rem;
  padding: 0.25rem 0 1.6rem;
}

.gallery-example-suite {
  display: grid;
  gap: 1.75rem;
  padding: 0.25rem 0 1.6rem;
}

.gallery-example-set + .gallery-example-set {
  padding-top: 1.75rem;
  border-top: 1px solid var(--line);
}

.gallery-example-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.15rem;
}

.gallery-example-suite + .gallery-grid--trailing {
  padding-top: 1.75rem;
  border-top: 1px solid var(--line);
}

.gallery-item {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.gallery-item--wide {
  grid-column: 1 / -1;
}

.gallery-media-frame {
  position: relative;
  display: grid;
  min-height: 10rem;
  place-items: center;
  overflow: hidden;
  background: #f6f7f8;
  border-bottom: 1px solid var(--line);
}

.gallery-media-frame--image {
  padding: 0.55rem;
}

.gallery-item--unlabeled .gallery-media-frame {
  border-bottom: 0;
}

.gallery-media {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 0;
}

.gallery-media-frame--interactive .gallery-media {
  min-height: min(620px, 70vw);
}

.gallery-item figcaption {
  padding: 0.78rem 0.88rem 0.86rem;
}

.gallery-item figcaption h3 {
  margin: 0;
  color: var(--ink);
  font-size: 0.88rem;
  font-weight: 700;
  line-height: 1.35;
}

.gallery-item figcaption p {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.45;
}

.gallery-credit {
  display: inline-block;
  margin-top: 0.42rem;
  font-size: 0.7rem;
  font-weight: 700;
}

.gallery-loading,
.gallery-error {
  margin: 1.5rem 0;
  color: var(--muted);
}

@media (max-width: 720px) {
  .gallery-shell {
    width: calc(100vw - 1.5rem);
  }

  .gallery-course-nav {
    margin-bottom: 2.4rem;
  }

  .gallery-course-nav a {
    width: 100%;
    justify-content: center;
  }

  .gallery-course + .gallery-course {
    margin-top: 3.5rem;
    padding-top: 3rem;
  }

  .gallery-group > summary {
    padding-right: 2rem;
  }

  .gallery-grid,
  .gallery-example-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .gallery-item--wide {
    grid-column: auto;
  }

  .gallery-media-frame--interactive .gallery-media {
    min-height: 430px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .gallery-course-header::after,
  .gallery-group > summary::after {
    transition: none;
  }
}