/* Hallmark · shape: Ecosystem Index · theme: Darkroom (dealt 3/3, adapted) · hero: Stage · nav: search-led · footer: mast · signature: illustration linked to its volume · v2.0.0 */
/* Hallmark · pre-emit critique: P4 H5 E4 S5 R4 V4 · weakest: E, source illustrations carry the hero rather than an invented cover */
@import url("./tokens.css");
@import url("./base.css");

* {
  box-sizing: border-box;
}

html,
body {
  overflow-x: clip;
}

body {
  min-width: 320px;
}

.sr-only,
.skip-link:not(:focus) {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: clip;
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: var(--space-3);
  left: var(--space-3);
  padding: var(--space-2) var(--space-3);
  background: var(--color-paper-bright);
  color: var(--color-ink);
}

.site-header {
  position: relative;
  z-index: 5;
  display: grid;
  grid-template-columns: minmax(180px, 1fr) auto minmax(240px, 1fr);
  align-items: center;
  gap: var(--space-6);
  min-height: 78px;
  padding: 0 max(var(--space-px-40), calc((100% - var(--container)) / 2));
  border-bottom: 1px solid var(--color-rule);
  background: var(--color-paper-bright);
}

.wordmark {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-ink);
  text-decoration: none;
}

.wordmark-number {
  color: var(--color-accent);
  font: 500 34px/1 var(--font-display);
}

.wordmark-name {
  font-size: 13px;
  line-height: 1.2;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: clamp(var(--space-px-20), 3vw, var(--space-px-48));
  white-space: nowrap;
}

.primary-nav a,
.text-link,
.footer-top {
  text-decoration-thickness: 1px;
  text-underline-offset: 5px;
  text-decoration-color: var(--color-rule);
}

.primary-nav a[aria-current="page"] {
  color: var(--color-accent);
  text-decoration-color: var(--color-accent);
}

a:active,
button:active {
  transform: translateY(1px);
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.search-form {
  display: flex;
  justify-self: end;
  width: min(100%, 330px);
  border-bottom: 1px solid var(--color-rule);
}

.search-form input {
  min-width: 0;
  width: 100%;
  min-height: 42px;
  border: 0;
  background: transparent;
  color: var(--color-ink);
}

.search-form input::placeholder {
  color: var(--color-muted);
}

.search-form input:focus-visible {
  outline-offset: -3px;
}

.search-form button {
  flex: 0 0 auto;
  padding: 0 0 0 var(--space-2);
  border: 0;
  background: transparent;
  color: var(--color-accent);
  cursor: pointer;
}

main {
  min-height: 60vh;
}

#app {
  min-height: 48vh;
}

.hero,
.section,
.site-footer {
  width: min(calc(100% - 64px), var(--container));
  margin-inline: auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.8fr);
  align-items: center;
  gap: clamp(var(--space-px-48), 8vw, var(--space-px-132));
  min-height: 660px;
  padding-block: var(--space-px-60) var(--space-px-72);
}

.hero-copy {
  max-width: 680px;
  min-width: 0;
  padding-left: clamp(0px, 4vw, var(--space-px-60));
}

.hero h1,
.page-heading h1 {
  margin: 0;
  font: 400 clamp(46px, 6vw, 78px)/1.14 var(--font-display);
  letter-spacing: -0.035em;
  overflow-wrap: break-word;
  min-width: 0;
  text-wrap: balance;
}

.hero-copy > p {
  max-width: 36rem;
  margin: var(--space-5) 0 0;
  color: var(--color-muted);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  margin-top: var(--space-6);
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 var(--space-px-24);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-small);
  text-decoration: none;
  cursor: pointer;
}

.button-primary {
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

.button-primary:hover {
  background: var(--color-accent-strong);
  border-color: var(--color-accent-strong);
}

.text-link:hover,
.footer-top:hover,
.primary-nav a:hover {
  color: var(--color-accent);
  text-decoration-color: var(--color-accent);
}

.hero-image-link {
  position: relative;
  display: block;
  width: 100%;
  max-width: 470px;
  justify-self: end;
  background: var(--color-paper-deep);
  color: var(--color-ink);
  text-decoration: none;
}

.hero-image {
  width: 100%;
  height: min(66dvh, 600px);
  min-height: 460px;
  object-fit: cover;
  object-position: 50% 34%;
}

.image-caption {
  display: block;
  padding: var(--space-px-12) var(--space-px-16);
  border-bottom: 1px solid var(--color-rule);
  background: var(--color-paper-bright);
  color: var(--color-muted);
  font-size: 13px;
}

.section {
  padding-block: var(--space-px-76) var(--space-px-12);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-px-28);
  padding-bottom: var(--space-px-20);
  border-bottom: 1px solid var(--color-rule);
}

.section-heading h2,
.page-heading h1,
.noscript-index h2 {
  margin: 0;
  font: 400 clamp(30px, 4vw, 46px)/1.2 var(--font-display);
  overflow-wrap: break-word;
  min-width: 0;
  text-wrap: balance;
}

.section-heading p,
.page-heading p {
  margin: var(--space-px-8) 0 0;
  color: var(--color-muted);
}

.book-list,
.short-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: var(--gap-columns);
}

.book-row,
.short-row {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-px-20);
  min-height: 84px;
  border-bottom: 1px solid var(--color-rule);
}

.book-index {
  color: var(--color-accent);
  font: 400 25px/1 var(--font-display);
}

.book-row h3,
.short-row h3 {
  min-width: 0;
  margin: 0;
  font-size: 16px;
  font-weight: 400;
  overflow-wrap: break-word;
}

.book-row p,
.short-row p {
  margin: var(--space-px-4) 0 0;
  color: var(--color-muted);
  font-size: 13px;
}

.row-link {
  align-self: stretch;
  display: flex;
  align-items: center;
  color: var(--color-accent);
  white-space: nowrap;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.illustration-section {
  padding-bottom: var(--space-px-104);
}

.illustration-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  row-gap: var(--space-px-24);
  column-gap: var(--gap-columns);
}

.illustration-item {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 0;
  border: 0;
  background: transparent;
  text-align: left;
  cursor: zoom-in;
}

.illustration-static {
  color: inherit;
  text-decoration: none;
}

.illustration-item img {
  width: 100%;
  height: 290px;
  object-fit: contain;
  background: var(--color-paper-deep);
}

.illustration-item:hover img {
  transform: translateY(-3px);
}

.illustration-item img {
  transition: transform 160ms ease-out;
}

.illustration-label {
  display: block;
  padding-top: var(--space-px-8);
  color: var(--color-muted);
  font-size: 13px;
}

.continue-section[hidden] {
  display: none;
}

.continue-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding-inline: var(--space-px-20);
  border-bottom: 1px solid var(--color-rule);
  color: var(--color-accent);
  text-decoration: none;
}

.page-shell {
  width: min(calc(100% - 64px), var(--container));
  min-height: 60vh;
  margin-inline: auto;
  padding-block: var(--space-px-76) var(--space-px-112);
}

.page-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: var(--space-5);
  margin-bottom: var(--space-px-44);
}

.page-heading h1 {
  font-size: clamp(40px, 5vw, 62px);
}

.page-heading p {
  max-width: 36rem;
}

.filter-row {
  display: flex;
  align-items: center;
  gap: var(--space-px-12);
  margin-bottom: var(--space-px-28);
}

.filter-button {
  min-height: 40px;
  padding: 0 var(--space-px-16);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-small);
  background: transparent;
  cursor: pointer;
}

.filter-button[aria-pressed="true"] {
  border-color: var(--color-accent);
  background: transparent;
  color: var(--color-accent);
}

.book-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  row-gap: var(--space-px-32);
  column-gap: var(--gap-columns);
}

.book-card {
  display: grid;
  grid-template-rows: 280px auto;
  min-width: 0;
  border-bottom: 1px solid var(--color-rule);
  color: inherit;
  text-decoration: none;
}

.book-card img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: var(--color-paper-deep);
}

.book-card-copy {
  display: flex;
  min-height: 95px;
  flex-direction: column;
  justify-content: space-between;
  padding: var(--space-px-12) 0 var(--space-px-16);
}

.book-card h2 {
  margin: 0;
  font-size: 16px;
  font-weight: 400;
  overflow-wrap: break-word;
}

.book-card p {
  margin: var(--space-px-8) 0 0;
  color: var(--color-muted);
  font-size: 13px;
}

.empty-state {
  grid-column: 1 / -1;
  padding-block: var(--space-px-48);
  color: var(--color-muted);
}

.reader-shell {
  width: min(calc(100% - 48px), 1180px);
  margin-inline: auto;
  padding-block: var(--space-px-32) var(--space-px-100);
}

.reader-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-bottom: var(--space-px-20);
  border-bottom: 1px solid var(--color-rule);
}

.reader-topline a {
  color: var(--color-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.reader-controls {
  display: flex;
  align-items: center;
  gap: var(--space-px-8);
}

.reader-controls button,
.reader-controls select {
  min-height: 40px;
  padding: 0 var(--space-px-12);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-small);
  background: var(--color-paper-bright);
  cursor: pointer;
}

.reader-heading {
  width: min(100%, 760px);
  margin: var(--space-px-64) auto var(--space-px-44);
}

.reader-heading p {
  margin: 0 0 var(--space-px-12);
  color: var(--color-accent);
}

.reader-heading h1 {
  margin: 0;
  font: 400 clamp(34px, 5vw, 54px)/1.25 var(--font-display);
  overflow-wrap: break-word;
  min-width: 0;
}

.reader-layout {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: var(--gap-columns);
  align-items: start;
}

.reader-toc {
  position: sticky;
  top: 22px;
  max-height: calc(100vh - 44px);
  overflow-y: auto;
  padding-right: var(--space-px-12);
}

.reader-toc h2 {
  margin: 0 0 var(--space-px-16);
  font-size: 14px;
  font-weight: 500;
}

.reader-toc a {
  display: block;
  padding: var(--space-px-8) 0;
  color: var(--color-muted);
  font-size: 13px;
  text-decoration: none;
}

.reader-toc a:hover,
.reader-toc a[aria-current="location"] {
  color: var(--color-accent);
}

.reader-content {
  max-width: var(--reader-width, 700px);
  margin-inline: auto;
  font-size: var(--reader-size, 19px);
  line-height: 1.95;
}

.reader-content.reader-warm {
  background: var(--color-paper-warm);
  color: var(--color-ink-warm);
}

.reader-content p {
  margin: 0 0 1.1em;
  text-indent: 2em;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.reader-content h2,
.reader-content h3 {
  margin: 2.5em 0 1.2em;
  font: 400 1.35em/1.45 var(--font-display);
  scroll-margin-top: 24px;
}

.reader-illustrations {
  margin-top: var(--space-px-80);
  padding-top: var(--space-px-32);
  border-top: 1px solid var(--color-rule);
}

.reader-illustrations h2 {
  margin: 0 0 var(--space-px-24);
  font: 400 30px/1.3 var(--font-display);
}

.reader-bottom-nav {
  display: flex;
  justify-content: space-between;
  gap: var(--space-px-20);
  margin-top: var(--space-px-60);
  padding-top: var(--space-px-20);
  border-top: 1px solid var(--color-rule);
}

.reader-bottom-nav a {
  color: var(--color-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.gallery-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-px-28);
}

.gallery-toolbar label {
  display: flex;
  align-items: center;
  gap: var(--space-px-12);
  color: var(--color-muted);
}

.gallery-toolbar select {
  min-width: 200px;
  min-height: 42px;
  padding: 0 var(--space-px-12);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-small);
  background: var(--color-paper-bright);
  color: var(--color-ink);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  row-gap: var(--space-px-24);
  column-gap: var(--gap-columns);
}

.lightbox {
  width: min(96vw, 1500px);
  max-width: none;
  max-height: 96vh;
  padding: var(--space-px-16);
  border: 1px solid var(--color-rule);
  background: var(--color-paper);
  color: var(--color-ink);
}

.lightbox::backdrop {
  background: var(--color-backdrop);
}

.lightbox-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-px-16);
}

.lightbox-toolbar p {
  margin: 0;
  color: var(--color-muted);
  font-size: 14px;
}

.icon-button,
.lightbox-step {
  min-height: 42px;
  padding: 0 var(--space-px-16);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-small);
  background: var(--color-paper-bright);
  cursor: pointer;
}

.lightbox > img {
  width: 100%;
  height: min(80dvh, 1100px);
  margin: var(--space-px-12) auto 0;
  object-fit: contain;
}

.lightbox-step:disabled {
  color: var(--color-muted);
  cursor: default;
}

::selection {
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

* {
  scrollbar-color: var(--color-rule) var(--color-paper);
}

input {
  caret-color: var(--color-accent);
}

.lightbox-step:hover:not(:disabled),
.icon-button:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.lightbox-previous {
  margin-right: var(--space-px-8);
}

.lightbox-next {
  margin-left: var(--space-px-8);
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(140px, 0.7fr) minmax(0, 2fr) auto;
  align-items: end;
  gap: var(--space-6);
  padding-block: var(--space-px-36) var(--space-px-48);
  border-top: 1px solid var(--color-rule);
}

.footer-name {
  display: flex;
  align-items: center;
  gap: var(--space-px-12);
}

.footer-name p {
  margin: 0;
  font: 400 15px/1.4 var(--font-display);
}

.footer-number {
  color: var(--color-accent);
  font: 400 36px/1 var(--font-display);
}

.footer-copy p {
  margin: 0 0 var(--space-px-4);
  color: var(--color-muted);
  font-size: 13px;
}

.footer-top {
  white-space: nowrap;
}

.error-message {
  padding: var(--space-px-24);
  color: var(--color-accent-strong);
}

.noscript-index {
  margin-block: var(--space-px-40) var(--space-px-80);
  padding: var(--space-px-32);
  background: var(--color-paper-deep);
}

.noscript-index ul {
  columns: 2;
}

@media (max-width: 960px) {
  .site-header {
    grid-template-columns: minmax(120px, 1fr) auto;
    gap: var(--space-px-16);
    padding-inline: var(--space-px-24);
  }
  .search-form {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-self: stretch;
    width: 100%;
    margin-top: calc(-1 * var(--space-px-8));
  }
  .hero {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
    gap: var(--space-px-40);
    min-height: 590px;
  }
  .hero-copy {
    padding-left: 0;
  }
  .book-grid,
  .gallery-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .illustration-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .site-header {
    grid-template-columns: 1fr auto;
    min-height: 70px;
    padding: var(--space-px-12) var(--space-px-20) var(--space-px-12);
  }
  .primary-nav {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-content: space-between;
    gap: var(--space-px-12);
    font-size: 14px;
  }
  .search-form {
    grid-column: 1 / -1;
    grid-row: 3;
    margin-top: 0;
  }
  .hero,
  .section,
  .site-footer,
  .page-shell {
    width: min(calc(100% - 36px), var(--container));
  }
  .hero {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-px-36);
    min-height: 0;
    padding-block: var(--space-px-60) var(--space-px-28);
  }
  .hero h1 {
    font-size: clamp(42px, 12vw, 58px);
  }
  .hero-copy > p {
    font-size: 16px;
  }
  .hero-actions {
    gap: var(--space-px-20);
    margin-top: var(--space-px-28);
  }
  .hero-image-link {
    justify-self: stretch;
    max-width: none;
  }
  .hero-image {
    height: min(112vw, 560px);
    min-height: 360px;
  }
  .section {
    padding-top: var(--space-px-60);
  }
  .section-heading,
  .page-heading,
  .gallery-toolbar {
    align-items: start;
    flex-direction: column;
  }
  .section-heading {
    gap: var(--space-px-16);
  }
  .book-list,
  .short-list {
    grid-template-columns: minmax(0, 1fr);
  }
  .book-row,
  .short-row {
    grid-template-columns: 42px minmax(0, 1fr) auto;
    gap: var(--space-px-12);
  }
  .book-grid,
  .gallery-grid,
  .illustration-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-px-20) var(--space-px-12);
  }
  .book-card {
    grid-template-rows: 230px auto;
  }
  .illustration-item img {
    height: 230px;
  }
  .reader-shell {
    width: min(calc(100% - 36px), 1180px);
    padding-block: var(--space-px-20) var(--space-px-72);
  }
  .reader-topline {
    align-items: start;
    flex-direction: column;
  }
  .reader-controls {
    flex-wrap: wrap;
  }
  .reader-heading {
    margin-block: var(--space-px-44) var(--space-px-32);
  }
  .reader-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-px-24);
  }
  .reader-toc {
    position: static;
    max-height: 210px;
    padding: var(--space-px-16) var(--space-px-20);
    border-block: 1px solid var(--color-rule);
  }
  .reader-toc h2 {
    margin-bottom: var(--space-px-8);
  }
  .gallery-toolbar label {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
  }
  .gallery-toolbar select {
    width: 100%;
  }
  .site-footer {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: var(--space-px-20);
    padding-block: var(--space-px-28) var(--space-px-36);
  }
  .footer-copy {
    grid-column: 1 / -1;
    grid-row: 2;
  }
  .footer-top {
    grid-column: 2;
    grid-row: 1;
  }
  .lightbox {
    padding: var(--space-px-12);
  }
  .lightbox-step {
    min-height: 38px;
    padding-inline: var(--space-px-8);
  }
}