/* Header and navigation. */
.shell {
  max-width: 1600px;
  margin: auto;
}

.sidebar {
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: 88px;
  margin-inline: var(--page-gutter);
  border-bottom: 1px solid var(--ink);
  position: relative;
  z-index: 20;
}

.wordmark {
  font: 750 30px/0.9 var(--font-display);
  letter-spacing: -0.04em;
  text-decoration: none;
}

.wordmark span {
  display: block;
}

.class-name {
  font-size: 12px;
  max-width: 110px;
  line-height: 1.3;
}

.sidebar nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
}

.sidebar nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  text-decoration: none;
}

.sidebar nav a:hover {
  text-decoration: underline;
}

/* Introduction and exhibition. */
.intro {
  margin: 36px var(--page-gutter) 0;
  padding: 16px 0 32px;
  position: relative;
  isolation: isolate;
}

.intro h1 {
  font: 450 clamp(56px, 7vw, 86px)/0.96 var(--font-display);
  letter-spacing: -0.035em;
  transform: rotate(-2deg);
  transform-origin: left center;
}

.intro-bottom {
  margin-top: 24px;
  font-size: 15px;
  max-width: 40ch;
  color: var(--ink);
}

.class-exhibition {
  padding: 32px var(--page-gutter) var(--section-space);
  margin-top: 36px;
  position: relative;
  isolation: isolate;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  margin-bottom: 24px;
}

.exhibition-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 24px;
  align-items: start;
}

.class-piece {
  min-width: 0;
}

.art-placeholder {
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--canvas);
  border: 8px solid var(--pink);
  position: relative;
}

.class-piece:nth-child(2) .art-placeholder {
  aspect-ratio: 0.9;
  border-color: var(--ink);
}

.class-piece:nth-child(3) .art-placeholder {
  aspect-ratio: 1.7;
  border-color: var(--paper);
}

.placeholder-label {
  color: var(--muted);
  text-align: center;
  font: 400 22px/1.2 var(--font-display);
}

.class-piece img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

.class-piece figcaption {
  font-size: 13px;
  color: var(--muted);
  margin-top: 12px;
  line-height: 1.5;
}

.class-piece:first-child figcaption {
  color: var(--ink);
}

/* Visitor artwork and footer. */
.gallery-section {
  padding: 64px var(--page-gutter) var(--section-space);
  position: relative;
  isolation: isolate;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 44px 32px;
  align-items: start;
  padding-bottom: 176px;
}

.artwork {
  min-width: 0;
}

.artwork a {
  display: block;
}

.artwork img {
  height: auto;
  display: block;
  width: 100%;
  aspect-ratio: 8/5;
  object-fit: contain;
  background: var(--canvas);
  border: 1px solid var(--control-line);
}

.artwork figcaption {
  margin-top: 12px;
  overflow-wrap: anywhere;
}

.artwork h3 {
  font: 500 24px/1.15 var(--font-display);
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.artwork p {
  font-size: 14px;
}

.gallery-status {
  font-size: 14px;
  color: var(--muted);
  margin-block: 0 16px;
}

.gallery-status:empty {
  display: none;
}

.empty-gallery {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 110px;
  padding-block: 16px;
}

.empty-gallery h3 {
  font: 400 26px/1.2 var(--font-display);
  margin-bottom: 8px;
}

.empty-gallery a {
  font-size: 14px;
}

.colophon {
  margin-inline: var(--page-gutter);
  padding-bottom: 24px;
}

.colophon footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid var(--line);
  padding-top: 24px;
  font-size: 12px;
  color: var(--muted);
}

.hero-human {
  display: block;
  color: var(--ink);
  font-size: 1.12em;
  font-weight: 650;
  line-height: 0.88;
  letter-spacing: -0.035em;
}

.hero-rest {
  display: block;
  font-size: 0.55em;
  font-weight: 450;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin-top: 12px;
  color: var(--ink);
  margin-left: 8%;
}

.class-exhibition h2 {
  font-weight: 550;
  transform: rotate(-3deg);
}

.gallery-section h2 {
  text-decoration: underline;
  text-decoration-color: var(--pink);
  text-decoration-thickness: 5px;
  text-underline-offset: 8px;
  transform: rotate(-2deg);
}

.gallery-section .section-heading {
  margin-bottom: 32px;
}

.intro::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: -12px 13% 2px -8%;
  background: var(--pink);
  border-radius: 44% 56% 33% 67% / 46% 43% 57% 54%;
  transform: rotate(-4deg);
}

.intro-copy {
  max-width: 72%;
}

.class-exhibition::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 90px -10% -16px -8%;
  background: var(--green);
  border-radius: 38% 62% 57% 43% / 12% 8% 13% 11%;
  transform: rotate(2deg);
}

.class-exhibition .section-heading {
  margin-bottom: 44px;
}

.class-piece:nth-child(1) {
  grid-column: 1 / 8;
  grid-row: 1;
  transform: rotate(-2deg);
}

.class-piece:nth-child(2) {
  grid-column: 9 / 13;
  grid-row: 1;
  margin-top: 128px;
  transform: rotate(3deg);
}

.class-piece:nth-child(3) {
  grid-column: 4 / 10;
  grid-row: 2;
  margin-top: -16px;
  transform: rotate(-3deg);
}

.class-piece:nth-child(1) .art-placeholder {
  aspect-ratio: 1.35;
}

.artwork:nth-child(3n + 1) {
  transform: rotate(-1.5deg);
}

.artwork:nth-child(3n + 2) {
  margin-top: 48px;
  transform: rotate(2deg);
}

.artwork:nth-child(3n) {
  margin-top: 16px;
  transform: rotate(-1deg);
}

@media print {
  .sidebar nav {
    display: none;
  }

  .class-exhibition {
    break-inside: avoid;
  }

  .gallery-section {
    break-inside: avoid;
  }
}

@media (max-width: 760px) {
  .sidebar {
    min-height: 64px;
    gap: 16px;
    padding-block: max(12px, env(safe-area-inset-top)) 12px;
  }

  .wordmark {
    font-size: 26px;
  }

  .class-name {
    max-width: none;
    font-size: 12px;
  }

  .sidebar nav {
    position: fixed;
    z-index: 20;
    left: 0;
    right: 0;
    bottom: 0;
    margin: 0;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 0;
    border-top: 1px solid var(--pink);
    background: var(--ink);
    padding: 4px max(8px, env(safe-area-inset-right))
      calc(4px + env(safe-area-inset-bottom))
      max(8px, env(safe-area-inset-left));
    color: var(--paper);
  }

  .sidebar nav a {
    min-height: 52px;
    justify-content: center;
    text-align: center;
    font-size: 14px;
    padding: 8px 4px;
  }

  .sidebar nav a[aria-current="location"] {
    background: var(--green);
    text-decoration: underline;
    text-underline-offset: 5px;
    color: var(--ink);
  }

  .intro {
    margin-top: 28px;
    padding: 12px 0 24px;
  }

  .intro h1 {
    font-size: 52px;
  }

  .intro-bottom {
    font-size: 14px;
    margin-top: 20px;
    max-width: 23ch;
  }

  .class-exhibition {
    margin-top: 48px;
    padding-top: 28px;
  }

  .section-heading {
    margin-bottom: 20px;
    gap: 16px;
  }

  .exhibition-grid {
    display: flex;
    flex-direction: column;
    gap: 72px;
  }

  .class-piece:nth-child(2) .art-placeholder {
    aspect-ratio: 1;
  }

  .class-piece:nth-child(3) .art-placeholder {
    aspect-ratio: 1.4;
  }

  .class-piece figcaption {
    font-size: 15px;
  }

  .gallery-section {
    padding-top: 48px;
  }

  #refresh-gallery {
    min-height: 48px;
    min-width: 88px;
    font-size: 15px;
  }

  .gallery-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
    padding-bottom: 160px;
  }

  .artwork h3 {
    font-size: 28px;
  }

  .artwork p {
    font-size: 16px;
  }

  .empty-gallery {
    gap: 16px;
  }

  .empty-gallery a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
  }

  .colophon a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
  }

  .colophon footer {
    align-items: center;
    padding-top: 16px;
  }

  .hero-rest {
    margin-top: 10px;
    margin-left: 0;
    font-size: 0.56em;
  }

  .art-placeholder {
    border-width: 6px;
  }

  .sidebar nav a:focus-visible {
    outline-color: var(--green);
    outline-offset: -3px;
  }

  .intro::before {
    inset: -12px -12% -4px -18%;
    border-radius: 39% 61% 34% 66% / 29% 33% 67% 71%;
  }

  .intro-copy {
    max-width: calc(100% - 76px);
  }

  .class-exhibition::before {
    inset: 68px -16% -8px -12%;
    border-radius: 42% 58% 37% 63% / 6% 4% 8% 5%;
  }

  .class-exhibition .section-heading {
    margin-bottom: 32px;
  }

  .class-piece:nth-child(1) {
    width: 92%;
    margin: 0;
    align-self: flex-start;
  }

  .class-piece:nth-child(2) {
    width: 78%;
    margin: 0;
    align-self: flex-end;
  }

  .class-piece:nth-child(3) {
    width: 91%;
    margin: 0 0 0 4%;
    align-self: flex-start;
  }

  .class-piece:nth-child(1) .art-placeholder {
    aspect-ratio: 1.2;
  }

  .artwork {
    width: 94%;
  }

  .artwork:nth-child(3n + 2) {
    margin-top: 0;
    margin-left: 6%;
  }

  .artwork:nth-child(3n) {
    margin-top: 0;
  }
}

@media (max-width: 360px) {
  .intro h1 {
    font-size: 46px;
  }

  .sidebar nav a {
    font-size: 13px;
  }

  .intro-copy {
    max-width: calc(100% - 60px);
  }

  .class-exhibition {
    margin-top: 56px;
  }
}

@media (max-width: 1100px) and (min-width: 761px) {
  .intro-copy {
    max-width: 68%;
  }
}