.project-archive {
  background: var(--color-surface);
  color: var(--color-ink);
}

.project-archive__header,
.project-archive__filters,
.project-gallery__chapter,
.project-archive__contact {
  width: min(calc(100% - (var(--gutter) * 2)), var(--container-max));
  margin-inline: auto;
}

.project-archive__header {
  display: grid;
  min-height: 0;
  align-content: center;
  padding-block: var(--space-section-compact);
}

.project-archive__eyebrow {
  margin-bottom: 1.25rem;
  color: var(--color-accent);
  font: 600 0.72rem/1.2 var(--font-supporting);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.project-archive__header h1 {
  max-width: 12ch;
}

.project-archive__header > p:last-child {
  max-width: 45rem;
  margin-top: 1.5rem;
  color: var(--color-muted);
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
}

.project-archive__filters {
  position: sticky;
  z-index: 10;
  top: 4rem;
  padding-block: 0.75rem;
  border-block: 1px solid var(--color-line);
  background: rgb(253 253 252 / 97%);
}

.project-archive__filters ul {
  display: flex;
  max-width: 100%;
  flex-wrap: wrap;
  gap: 0.4rem 1.5rem;
}

.project-archive__filters a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  color: var(--color-muted);
  font: 600 0.76rem/1.2 var(--font-supporting);
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
}

.project-archive__filters a:hover,
.project-archive__filters a[aria-current="page"] {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 0.35em;
}

.project-gallery__chapter {
  padding-block: var(--space-section);
}

.project-gallery__chapter + .project-gallery__chapter {
  border-top: 1px solid var(--color-line);
}

.project-gallery__chapter-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: var(--space-heading);
}

.project-gallery__chapter-header h2 a {
  text-decoration: none;
}

.project-gallery__chapter-header h2 a:hover {
  color: var(--color-accent);
}

.project-gallery__chapter-header p {
  flex: 0 0 auto;
  color: var(--color-muted);
  font: 500 0.8rem/1.3 var(--font-supporting);
}

.project-gallery__grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(0.65rem, 1.6vw, 1.5rem);
  align-items: start;
}

.project-gallery__item {
  grid-column: span 3;
  min-width: 0;
}

.project-gallery__item:nth-child(12n + 1),
.project-gallery__item:nth-child(12n + 8) {
  grid-column: span 6;
}

.project-gallery__button {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius);
  background: var(--color-surface-subtle);
}

.project-gallery__button picture,
.project-gallery__button img {
  width: 100%;
  height: 100%;
}

.project-gallery__button img {
  min-height: 0;
  object-fit: cover;
  transition: transform 620ms var(--ease-out);
}

.project-gallery__item:nth-child(12n + 1) .project-gallery__button,
.project-gallery__item:nth-child(12n + 8) .project-gallery__button {
  aspect-ratio: 16 / 10;
}

.project-gallery__item:nth-child(12n + 2) .project-gallery__button,
.project-gallery__item:nth-child(12n + 10) .project-gallery__button {
  aspect-ratio: 4 / 5;
}

.project-gallery__button:hover img,
.project-gallery__button:focus-visible img {
  transform: scale(1.02);
}

.project-gallery__lightbox {
  border-radius: var(--radius);
}

.project-archive__contact {
  display: grid;
  gap: 1.25rem;
  padding-block: var(--space-section-compact);
  border-top: 1px solid var(--color-line);
}

.project-archive__contact h2 {
  max-width: 12ch;
}

.project-archive__contact p {
  color: var(--color-muted);
  font-size: 1.08rem;
}

.project-archive__contact > div {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

@media (max-width: 63.999rem) {
  .project-gallery__item,
  .project-gallery__item:nth-child(n) {
    grid-column: span 6;
    margin-top: 0;
  }

  .project-gallery__item:nth-child(5n + 1) {
    grid-column: span 12;
  }
}

@media (max-width: 47.999rem) {
  .project-archive__header {
    min-height: auto;
    padding-block: 3.5rem 4rem;
  }

  .project-archive__filters {
    top: 4.25rem;
    margin-inline: 0;
    width: 100%;
    padding-inline: 1rem;
  }

  .project-archive__filters ul {
    width: 100%;
    flex-wrap: wrap;
    gap: 0.15rem 1rem;
  }

  .project-archive__filters a {
    font-size: 0.68rem;
  }

  .project-gallery__chapter {
    padding-block: 3.75rem;
  }

  .project-gallery__chapter-header {
    align-items: end;
  }

  .project-gallery__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.65rem;
  }

  .project-gallery__item,
  .project-gallery__item:nth-child(n) {
    grid-column: span 1;
  }

  .project-gallery__item:nth-child(5n + 1) {
    grid-column: span 2;
  }

  .project-gallery__item:nth-child(n) img {
    min-height: 0;
    aspect-ratio: 4 / 3;
  }

  .project-gallery__item:nth-child(5n + 1) img {
    aspect-ratio: 16 / 10;
  }

  .project-archive__contact > div {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 25rem) {
  .project-archive__contact > div {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .project-gallery__button img {
    transform: none !important;
  }
}