/* Theme tokens: keep the original teal/cream base and echo the logo's accents. */
:root {
  --bg: #f5f2ea;
  --surface: #fffefb;
  --surface-strong: #ffffff;
  --text: #182126;
  --muted: #51606a;
  --border: #c6d2cc;
  --border-strong: #245967;
  --brand: #005a70;
  --brand-strong: #003e4f;
  --accent: #be6a15;
  --amber: #f2aa08;
  --lavender: #ada9e2;
  --mint: #08af9b;
  --focus: #9a4d0c;
  --danger: #8c2f39;
  --shadow: 4px 4px 0 rgba(0, 62, 79, 0.09);
  --radius: 16px;
  --font-body: "Source Sans 3", "Segoe UI", Arial, sans-serif;
  --font-display: "Space Grotesk", "Avenir Next", "Trebuchet MS", sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse at 8% 0%, rgba(242, 170, 8, 0.08), transparent 38rem),
    radial-gradient(ellipse at 100% 30%, rgba(173, 169, 226, 0.08), transparent 35rem),
    radial-gradient(rgba(0, 90, 112, 0.09) 0.65px, transparent 0.8px);
  background-size: auto, auto, 12px 12px;
}

body {
  margin: 0;
}

::selection {
  background: #f5d98c;
  color: var(--brand-strong);
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

h2 {
  margin: 0 0 1rem;
  font-size: 1.65rem;
}

h3 {
  margin: 0 0 0.9rem;
  color: var(--brand-strong);
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

h4 {
  margin: 1.1rem 0 0.65rem;
  font-size: 0.95rem;
  letter-spacing: -0.015em;
  overflow-wrap: anywhere;
}

p {
  margin: 0 0 1rem;
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--brand-strong);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
  overflow-wrap: anywhere;
}

a:hover {
  color: var(--accent);
}

code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  overflow-wrap: anywhere;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

summary:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

.shell {
  width: min(1160px, calc(100% - 3rem));
  margin: 0 auto;
}

/* Shared masthead: geometric marks use equal top and right insets. */
.site-header {
  padding: 1.5rem 0 1.75rem;
}

.masthead {
  --masthead-inset-block: 1.5rem;
  --masthead-inset-inline: 1.75rem;
  position: relative;
  isolation: isolate;
  padding: var(--masthead-inset-block) var(--masthead-inset-inline) 1.1rem;
  border: 1px solid var(--brand-strong);
  border-radius: 28px 28px 28px 8px;
  color: white;
  background: linear-gradient(115deg, var(--brand), var(--brand-strong));
  box-shadow: 6px 6px 0 #ddd8c9;
}

.masthead::after {
  content: "";
  position: absolute;
  z-index: -1;
  top: var(--masthead-inset-inline);
  right: var(--masthead-inset-inline);
  width: 11rem;
  height: 6.5rem;
  background: url("./memphis-motif.svg") center / contain no-repeat;
  opacity: 0.85;
  pointer-events: none;
}

.site-branding {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  max-width: calc(100% - 12rem);
}

.site-logo {
  display: block;
  flex: 0 0 auto;
  width: 6.5rem;
  padding: 0.3rem;
  border: 2px solid var(--brand-strong);
  border-radius: 14px 14px 14px 4px;
  background: var(--surface-strong);
  box-shadow: 4px 4px 0 var(--lavender);
  transform: rotate(-2deg);
}

.site-logo img {
  display: block;
  width: 100%;
  height: auto;
}

.site-branding-copy {
  min-width: 0;
}

.masthead h1,
.masthead p {
  margin: 0;
}

.masthead h1 {
  margin: 0.35rem 0 0.4rem;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1.1;
  letter-spacing: -0.055em;
}

.masthead p {
  max-width: 38rem;
  color: #e3eeeb;
}

.kicker {
  color: var(--brand);
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.6rem;
  margin-top: 1.3rem;
  padding-top: 0.9rem;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.6rem;
  padding: 0.4rem 0.85rem;
  border: 1px solid transparent;
  border-radius: 6px 12px 6px 12px;
  color: white;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
}

.nav a:hover,
.nav a[aria-current="page"] {
  border-color: #f5ecd6;
  color: var(--brand-strong);
  background: #f5ecd6;
}

.masthead a:focus-visible {
  outline-color: #ffce67;
}

/* Common page surfaces keep research content clear and high contrast. */
main {
  padding-bottom: 3rem;
}

main > .shell,
.grid {
  display: grid;
  gap: 1.25rem;
}

.grid > *,
.relationship-grid > * {
  min-width: 0;
}

.grid.two {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
}

.card {
  position: relative;
  min-width: 0;
  padding: clamp(1.15rem, 2.3vw, 1.75rem);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow-wrap: anywhere;
}

.lede {
  max-width: 68ch;
  font-size: 1.1rem;
  color: var(--muted);
}

/* Publications: a year index beside individual paper cards. */
.publications-heading {
  margin: 0;
}

.publications-layout {
  display: grid;
  grid-template-columns: 14rem minmax(0, 1fr);
  align-items: start;
  gap: 1.5rem;
}

.publications-content {
  display: grid;
  gap: 1.5rem;
  min-width: 0;
}

.publications-content > p {
  margin: 0;
  max-width: 80ch;
}

.publication-type-filters {
  min-width: 0;
  margin: 0 0 1.25rem;
  padding: 0 0 1.25rem;
  border: 0;
  border-bottom: 1px solid var(--border);
}

.publication-type-filters legend {
  margin-bottom: 0.75rem;
  padding: 0;
  color: var(--brand-strong);
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
}

.publication-type-options {
  display: grid;
  gap: 0.25rem;
}

.publication-type-options label {
  display: grid;
  grid-template-columns: 1rem minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  padding: 0.25rem 0;
  border-radius: 6px;
  font-size: 0.9rem;
  cursor: pointer;
}

.publication-type-options label:hover {
  background: #edf4f0;
}

.publication-type-options input {
  width: 1rem;
  height: 1rem;
  margin: 0;
  accent-color: var(--brand);
}

.publication-type-options input:checked + span {
  color: var(--brand-strong);
  font-weight: 700;
}

.publications-year-nav ul {
  display: grid;
  gap: 0.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.publications-year-nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  min-height: 2.75rem;
  padding: 0.35rem 0.6rem;
  border-radius: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  text-decoration: none;
}

.publications-year-nav a:hover {
  color: var(--brand-strong);
  background: #edf4f0;
}

.publication-year-count,
.publication-filter-count {
  min-width: 1.5rem;
  border-radius: 5px;
  color: var(--muted);
  background: #edf4f0;
  font-size: 0.8rem;
  text-align: center;
}

.publication-card {
  scroll-margin-top: 1.25rem;
}

.publication-card:target {
  border-color: var(--brand);
}

.publication-card:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

.publication-card-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 0.75rem;
  margin: 0 0 1.25rem;
}

.publication-card-header h3 {
  min-width: 0;
  margin: 0;
  font-size: 1.35rem;
}

.publication-card-tags {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.4rem;
}

.publication-type-tag,
.publication-content-tag {
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--brand-strong);
  background: #edf4f0;
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  line-height: 1.4;
  white-space: nowrap;
}

.publication-content-tag {
  background: var(--bg);
}

.publication-card[data-type="conference-paper"] .publication-type-tag {
  border-color: #d3cdeb;
  background: #efedfa;
}

.publication-card[data-type="poster"] .publication-type-tag {
  border-color: #e0c78c;
  background: #fff3d5;
}

.publication-card[hidden],
.publications-empty[hidden] {
  display: none;
}

.publication-card > p,
.publication-card > ol,
.publication-card > blockquote {
  max-width: 80ch;
}

.publication-card > ol {
  padding-left: 1.5rem;
}

.publication-card li + li {
  margin-top: 0.35rem;
}

.publication-card sup {
  margin-left: 0.1em;
  font-size: 0.7em;
  line-height: 0;
}

.publication-card blockquote {
  margin: 0 0 1rem;
  padding-left: 1rem;
  border-left: 3px solid var(--border);
}

@media (min-width: 901px) and (min-height: 800px) {
  .publications-sidebar:not([data-sticky-disabled]) {
    position: sticky;
    top: 1.25rem;
  }
}

@media (max-width: 900px) {
  .publications-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 1.25rem;
  }

  .publications-year-nav ul {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
  }

  .publications-year-nav a {
    background: #edf4f0;
  }

  .publication-year-count {
    display: none;
  }

  .publication-type-options {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.35rem 1rem;
  }
}

@media (max-width: 640px) {
  [data-publication-content-filters] .publication-type-options {
    grid-template-columns: minmax(0, 1fr);
  }

  .publication-card-header {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.65rem;
  }

  .publication-card-header h3 {
    grid-row: 2;
  }

  .publication-card-tags {
    grid-row: 1;
    justify-self: end;
  }
}

/* Homepage: a readable main column, with two useful resource cards beside it. */
.home-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(18rem, 1fr);
  align-items: start;
  gap: 1.5rem;
}

.home-intro {
  padding: clamp(1.35rem, 3vw, 2.25rem);
  border-color: var(--border-strong);
  border-radius: 22px 38px 10px 22px;
}

.home-intro::before {
  content: "";
  position: absolute;
  top: -0.45rem;
  left: 1.9rem;
  width: 3.7rem;
  height: 0.8rem;
  border: 1px solid var(--brand-strong);
  border-radius: 2px;
  background: var(--lavender);
  transform: rotate(-5deg);
  pointer-events: none;
}

.home-prose > h2:first-child {
  max-width: 18ch;
  margin-bottom: 1.1rem;
  font-size: clamp(2rem, 2.8vw, 2.5rem);
  line-height: 1.12;
  letter-spacing: -0.055em;
}

.home-prose > p:first-of-type {
  color: var(--brand-strong);
  font-size: 1.14rem;
  line-height: 1.55;
}

.home-prose h2:not(:first-child) {
  margin: 1.75rem 0 0.75rem;
  font-size: 1.3rem;
}

.home-prose ul {
  padding-left: 1.15rem;
}

.home-prose li {
  padding-left: 0.2rem;
  margin: 0.4rem 0;
}

.home-prose li::marker {
  color: var(--brand);
}

.home-actions {
  margin-top: 1.65rem;
  padding-top: 1.3rem;
  border-top: 1px dashed var(--border);
}

.home-sidebar {
  display: grid;
  min-width: 0;
  gap: 1.5rem;
}

.home-sidebar h2 {
  max-width: 20ch;
  font-size: 1.25rem;
  letter-spacing: -0.035em;
}

.home-release {
  border-radius: 12px 12px 30px 12px;
  background: #f6f0df;
}

.home-release::before {
  content: "";
  position: absolute;
  top: -0.8rem;
  right: 1.25rem;
  width: 3.2rem;
  height: 1.5rem;
  border: 1px solid var(--brand-strong);
  border-radius: 3rem 3rem 0 0;
  background: repeating-linear-gradient(135deg, #f6f0df 0 5px, var(--brand) 5px 6px);
  transform: rotate(8deg);
  pointer-events: none;
}

.release-facts {
  display: grid;
  gap: 0.9rem;
  margin: 0;
}

.release-facts > div + div {
  padding-top: 0.8rem;
  border-top: 1px dashed #d1cbbb;
}

.release-facts dt {
  margin-bottom: 0.2rem;
  color: var(--brand-strong);
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.release-facts dd {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.home-entry-points {
  border-top: 4px solid var(--brand);
  border-radius: 22px 10px 22px 10px;
}

.home-entry-points .link-list {
  display: grid;
  gap: 0;
}

.home-entry-points li + li {
  border-top: 1px dashed var(--border);
}

.home-entry-points a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  min-height: 3.5rem;
  padding: 0.75rem 0;
  text-decoration: none;
}

.entry-point-copy {
  display: grid;
  min-width: 0;
  gap: 0.15rem;
}

.entry-point-id {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

.entry-point-label {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  overflow-wrap: anywhere;
}

.entry-point-arrow {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 1.75rem;
  height: 1.75rem;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--brand-strong);
  background: #f0eeff;
}

.home-entry-points a:hover .entry-point-label {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.home-entry-points a:hover .entry-point-arrow {
  background: #fae2a7;
}

/* Ontology browser: a persistent hierarchy beside the current term record. */
.ontology-browser-page .shell {
  width: min(1440px, calc(100% - 3rem));
}

.ontology-browser {
  display: grid;
  grid-template-columns: 20.5rem minmax(0, 1fr);
  align-items: start;
  gap: 1.25rem;
  overflow-anchor: none;
}

.ontology-browser > * {
  min-width: 0;
}

#term-details {
  scroll-margin-top: 1rem;
}

/* A fixed notice announces a new record without moving the reader's place. */
.term-update-notice {
  position: fixed;
  z-index: 20;
  top: 0.75rem;
  left: 50%;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 1rem;
  width: min(50rem, calc(100% - 1.5rem));
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border-strong);
  border-top: 4px solid var(--amber);
  border-radius: 8px 18px 8px 18px;
  background: #fff6df;
  box-shadow: 4px 4px 0 rgba(0, 62, 79, 0.15);
  transform: translateX(-50%);
}

.term-update-notice[hidden],
.term-update-actions [hidden] {
  display: none;
}

.term-update-notice p {
  flex: 1 1 15rem;
  min-width: 0;
  margin: 0;
  color: var(--brand-strong);
  font-size: 0.9rem;
  overflow-wrap: anywhere;
}

.term-update-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.term-update-actions button,
.term-update-actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.6rem;
  padding: 0.4rem 0.65rem;
  border: 1px solid var(--border-strong);
  border-radius: 6px 10px 6px 10px;
  color: var(--brand-strong);
  background: var(--surface);
  font: 600 0.75rem var(--font-display);
  text-decoration: none;
  cursor: pointer;
}

.term-update-actions button:hover,
.term-update-actions a:hover {
  background: #f8e2a7;
}

.term-update-actions [data-term-notice-dismiss] {
  width: 2.6rem;
  padding: 0;
  font-size: 1.25rem;
}

.ontology-sidebar {
  min-width: 0;
}

.ontology-sidebar-panel {
  padding: 1.15rem 0.85rem;
  border-top: 4px solid var(--brand);
  border-radius: 18px 9px 18px 9px;
}

.ontology-sidebar-panel > summary {
  margin: 0 0.25rem;
  color: var(--brand-strong);
  cursor: pointer;
}

.ontology-sidebar-panel > summary h2 {
  display: inline;
  margin: 0;
  font-size: 1.1rem;
}

.ontology-tree-help,
.ontology-tree-status {
  margin: 0.9rem 0.25rem;
  font-size: 0.8rem;
  line-height: 1.5;
}

.ontology-tree-status:empty {
  display: none;
}

.ontology-tree-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.ontology-tree-list .ontology-tree-list {
  margin-left: min(0.75rem, 4%);
  padding-left: min(0.4rem, 3%);
  border-left: 1px dashed var(--border);
}

.ontology-tree-row {
  display: flex;
  align-items: start;
  gap: 0.15rem;
  min-width: 0;
  margin: 0.15rem 0;
}

.ontology-tree-toggle,
.ontology-tree-spacer {
  flex: 0 0 1.6rem;
  width: 1.6rem;
  min-height: 2.5rem;
}

.ontology-tree-toggle {
  padding: 0;
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--brand);
  background: transparent;
  font: 1.5rem var(--font-body);
  cursor: pointer;
}

.ontology-tree-toggle:hover {
  border-color: var(--border);
  background: #edf3ee;
}

.ontology-tree-link {
  display: grid;
  flex: 1;
  align-content: center;
  min-width: 0;
  min-height: 2.5rem;
  padding: 0.35rem 0.4rem;
  border-radius: 6px;
  font-size: 0.85rem;
  line-height: 1.3;
  text-decoration: none;
  overflow-wrap: anywhere;
}

a.ontology-tree-link:hover {
  color: var(--brand-strong);
  background: #edf3ee;
}

a.ontology-tree-link:hover > span:first-child {
  text-decoration: underline;
}

.ontology-tree-link[aria-current="page"] {
  color: var(--brand-strong);
  background: #fff3cf;
  box-shadow: inset 3px 0 0 var(--amber);
  font-weight: 700;
}

.ontology-tree-id {
  display: block;
  margin-top: 0.15rem;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 400;
}

.ontology-tree-group {
  color: var(--muted);
  font-weight: 600;
}

.ontology-tree-obsolete {
  margin-top: 0.75rem;
  padding-top: 0.5rem;
  border-top: 1px dashed var(--border);
}

.browse-intro h3 {
  margin-top: 1.75rem;
}

.browse-root-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr));
  gap: 0.75rem;
  margin: 0 0 1.5rem;
  padding: 0;
  list-style: none;
}

.browse-root-links a {
  display: block;
  padding: 0.9rem 1rem;
  border: 1px solid var(--border);
  border-radius: 7px 15px 7px 15px;
  background: #f6f3e9;
  font-weight: 600;
  text-decoration: none;
}

.browse-root-links a:hover {
  color: var(--brand-strong);
  background: #eeebfa;
}

/* Term records, relationships, and tables. */
.term-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.6rem 1rem;
}

.term-header > div {
  min-width: 0;
}

.term-header h2 {
  margin-bottom: 0.4rem;
  font-size: 2rem;
  overflow-wrap: anywhere;
}

.term-id {
  margin: 0;
  color: var(--brand);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
}

.term-summary .term-definition {
  margin: 1.5rem 0 0.75rem;
}

.term-notes {
  display: grid;
  gap: 1rem;
}

.term-notes > h3,
.term-notes > p {
  margin: 0;
}

.pill {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  border: 1px solid #c2d9d8;
  border-radius: 6px 12px 6px 12px;
  color: var(--brand-strong);
  background: #e9f2f1;
  font-size: 0.85rem;
  font-weight: 600;
}

.pill.obsolete {
  border-color: #e8c0c6;
  color: var(--danger);
  background: #fbe7ea;
}

.meta-list,
.inline-list,
.link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.7rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.inline-list li,
.meta-list li {
  padding: 0.25rem 0.65rem;
  border-radius: 6px;
  background: rgba(0, 90, 112, 0.06);
}

.relationship-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
  gap: 1rem 1.5rem;
}

.relationship-grid .link-list li {
  max-width: 100%;
  padding: 0.12rem 0.4rem;
  border: 1px solid #e0e8e2;
  border-radius: 5px;
  background: #f6f8f3;
  font-size: 0.9rem;
}

.table-wrap {
  max-width: 100%;
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 0.7rem 0.5rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
  overflow-wrap: anywhere;
}

th {
  color: var(--brand-strong);
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
}

thead {
  background: #edf3ee;
}

.synonyms-table th:first-child,
.synonyms-table td:first-child {
  width: 5rem;
  white-space: nowrap;
}

.breadcrumbs {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

/* Search and action controls. */
.search-box {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.8rem;
}

.search-box input {
  flex: 1 1 24rem;
  min-width: 0;
  min-height: 3rem;
  padding: 0.8rem 1rem;
  border: 2px solid var(--brand);
  border-radius: 8px 16px 8px 16px;
  color: var(--text);
  background: var(--surface-strong);
  font: inherit;
}

.search-box input::placeholder {
  color: #66737a;
  opacity: 1;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.8rem;
  padding: 0.65rem 0.9rem;
  border: 1px solid var(--brand-strong);
  border-radius: 7px 15px 7px 15px;
  color: white;
  background: var(--brand);
  box-shadow: 3px 3px 0 #e0bb75;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  transition: transform 120ms ease, box-shadow 120ms ease;
}

.button:hover {
  color: white;
  background: var(--brand-strong);
  box-shadow: 4px 4px 0 #e0bb75;
  transform: translate(-1px, -1px);
}

.home-actions .button + .button {
  color: var(--brand-strong);
  background: #f6f3e9;
  box-shadow: 3px 3px 0 #c7c2e4;
}

.home-actions .button + .button:hover {
  background: #eeebfa;
}

.release-repository {
  margin: 0 0 1.75rem;
}

.release-repository .button {
  justify-content: flex-start;
  gap: 0.65rem;
  max-width: 100%;
  font-size: 1rem;
  text-align: left;
}

.release-repository svg {
  flex: 0 0 auto;
  width: 1.4rem;
  height: 1.4rem;
}

.release-repository span {
  min-width: 0;
}

.search-results {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.search-results li {
  padding: 1rem 0;
  border-bottom: 1px dashed var(--border);
}

.search-result-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem 0.75rem;
}

.search-result-heading a {
  min-width: 0;
  font-family: var(--font-display);
  font-weight: 600;
}

.search-results li.search-result-exact {
  padding: 1rem;
  border-left: 3px solid var(--amber);
  border-radius: 8px 16px 8px 8px;
  background: #fff6df;
}

.search-result-exact .search-result-heading a {
  font-weight: 700;
}

.search-exact-badge {
  padding: 0.15rem 0.5rem;
  border: 1px solid #d8bd78;
  border-radius: 5px 9px 5px 9px;
  color: var(--brand-strong);
  background: #f8e2a7;
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
}

.search-results p {
  margin: 0.45rem 0 0;
  font-size: 0.95rem;
}

/* Graph controls stay understated; the canvas has a light positioning grid. */
.dag-figure {
  margin: 0;
}

.graph-viewport {
  position: relative;
}

.graph-zoom-controls {
  position: absolute;
  z-index: 1;
  top: 0.65rem;
  right: 0.65rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.graph-zoom-controls button {
  display: grid;
  place-items: center;
  width: 2.75rem;
  min-height: 2.75rem;
  padding: 0;
  border: 1px solid var(--border-strong);
  border-radius: 7px;
  color: var(--text);
  background: var(--surface-strong);
  box-shadow: 2px 2px 0 rgba(0, 62, 79, 0.12);
  font: 600 1.4rem/1 var(--font-display);
  cursor: pointer;
}

.graph-zoom-controls button:hover {
  color: var(--brand-strong);
  background: #eeebfa;
}

.graph-zoom-controls svg {
  width: 1.25rem;
  height: 1.25rem;
}

.dag-figure figcaption {
  margin-top: 0.8rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.dag-svg {
  display: block;
  width: 100%;
  height: auto;
  max-height: 36rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background-color: #fbfaf6;
  background-image: radial-gradient(rgba(0, 90, 112, 0.14) 0.7px, transparent 0.8px);
  background-size: 20px 20px;
}

.interactive-dag {
  min-height: 20rem;
  cursor: grab;
  touch-action: none;
}

.interactive-dag.is-panning {
  cursor: grabbing;
}

.dag-node rect {
  fill: #ffffff;
  stroke: var(--brand);
  stroke-width: 2;
  rx: 8;
  ry: 8;
}

.dag-node text {
  fill: var(--text);
  font-family: var(--font-body);
  font-size: 14px;
}

.dag-node text:first-of-type {
  font-family: var(--font-mono);
  font-size: 11.5px;
}

.dag-node.is-current rect {
  fill: #e4f0ec;
  stroke: var(--brand-strong);
  stroke-width: 3;
}

.interactive-node,
.interactive-edge {
  transition: opacity 140ms ease;
}

.interactive-node rect {
  transition: fill 140ms ease, stroke-width 140ms ease;
}

.interactive-node:hover rect,
.interactive-node:focus rect,
.interactive-node.is-highlighted rect {
  fill: #fff0ce;
  stroke: var(--accent);
  stroke-width: 3;
}

.interactive-node.is-dimmed,
.interactive-edge.is-dimmed {
  opacity: 0.2;
}

.dag-edge {
  stroke: #4f646f;
  stroke-width: 1.7;
}

.interactive-edge.is-highlighted {
  stroke: var(--accent);
  stroke-width: 2.6;
}

.graph-arrow {
  fill: #4f646f;
}

.muted {
  color: var(--muted);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  clip: rect(0, 0, 0, 0);
  overflow: hidden;
}

.site-footer {
  padding-bottom: 2.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer .shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.25rem;
  border-top: 1px dashed #b7c6c0;
}

.site-footer .shell::after {
  content: "";
  flex: 0 0 auto;
  width: 3.5rem;
  height: 1rem;
  border: 1px solid var(--brand);
  border-radius: 1rem;
  background: repeating-linear-gradient(135deg, transparent 0 5px, var(--brand) 5px 6px);
}

/* Collapse the composition, not the content, on smaller screens. */
@media (max-width: 960px) {
  .home-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .home-sidebar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-branding {
    max-width: 100%;
  }

  .masthead::after {
    display: none;
  }
}

@media (max-width: 640px) {
  html {
    font-size: 16px;
  }

  .shell,
  .ontology-browser-page .shell {
    width: calc(100% - 1.5rem);
  }

  .site-header {
    padding-top: 0.9rem;
  }

  .masthead {
    padding: 1.15rem;
    border-radius: 20px 20px 20px 6px;
    box-shadow: 4px 4px 0 #ddd8c9;
  }

  .site-branding {
    gap: 1rem;
  }

  .site-logo {
    width: 4.5rem;
    border-radius: 10px 10px 10px 4px;
  }

  .masthead h1 {
    font-size: clamp(1.6rem, 6vw, 2rem);
    letter-spacing: -0.045em;
  }

  .masthead .site-branding-copy > p:last-child {
    font-size: 0.9rem;
    line-height: 1.5;
  }

  .nav {
    gap: 0.25rem;
    margin-top: 1rem;
    padding-top: 0.65rem;
  }

  .nav a {
    min-height: 2.75rem;
    padding: 0.4rem 0.65rem;
    font-size: 0.85rem;
  }

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

  .home-intro {
    border-radius: 18px 28px 8px 18px;
  }

  .home-actions .button {
    flex: 1 1 14rem;
  }

  .term-header h2 {
    font-size: 1.65rem;
  }
}

@media (max-width: 900px) {
  .ontology-browser {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
  }

  .button:hover {
    transform: none;
  }
}