:root {
  --ink: #142a3b;
  --ink-soft: #3f5360;
  --paper: #f4f0e7;
  --paper-deep: #e8e1d4;
  --surface: #fffdf8;
  --line: #cbc2b2;
  --accent: #a5422d;
  --accent-dark: #7c2d1e;
  --brass: #b48843;
  --success: #245d4a;
  --shadow: 0 18px 50px rgb(20 42 59 / 9%);
  --serif: Georgia, "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(rgb(20 42 59 / 3%) 1px, transparent 1px),
    var(--paper);
  background-size: 100% 32px;
  font-family: var(--sans);
  line-height: 1.55;
}

a {
  color: var(--accent-dark);
  text-underline-offset: 0.2em;
}

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

button,
input,
select {
  font: inherit;
}

button,
select {
  cursor: pointer;
}

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

[hidden] {
  display: none !important;
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: 1rem;
  left: 1rem;
  padding: 0.65rem 1rem;
  color: white;
  background: var(--ink);
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header,
.site-footer,
main {
  width: min(1180px, calc(100% - 3rem));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 86px;
  border-bottom: 1px solid var(--line);
}

.wordmark {
  display: inline-flex;
  gap: 0.8rem;
  align-items: center;
  color: var(--ink);
  text-decoration: none;
}

.wordmark:hover {
  color: var(--ink);
}

.wordmark-mark {
  display: block;
  flex: 0 0 auto;
  width: 2.65rem;
  height: 2.65rem;
}

.wordmark-name {
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 700;
}

.site-nav,
.site-footer div {
  display: flex;
  gap: 1.6rem;
  align-items: center;
}

.site-nav a,
.site-footer a {
  color: var(--ink-soft);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.site-nav a:hover,
.site-footer a:hover {
  color: var(--accent);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(260px, 0.72fr);
  gap: clamp(3rem, 8vw, 7rem);
  align-items: end;
  min-height: 590px;
  padding: 6.5rem 0 5.5rem;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--accent);
  font-size: 0.73rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  font-family: var(--serif);
  line-height: 1.08;
}

.hero-copy h1 {
  max-width: 800px;
  margin-bottom: 1.6rem;
  font-size: clamp(3rem, 6.5vw, 5.9rem);
  font-weight: 500;
  letter-spacing: -0.045em;
}

.hero-deck {
  max-width: 720px;
  margin-bottom: 2.5rem;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  line-height: 1.5;
}

.search-form {
  max-width: 850px;
}

.search-label {
  display: block;
  margin-bottom: 0.6rem;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.search-controls {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto auto;
  padding: 0.35rem;
  background: var(--surface);
  border: 1px solid var(--ink);
  box-shadow: var(--shadow);
}

.search-controls input,
.search-controls select {
  min-width: 0;
  height: 3.7rem;
  color: var(--ink);
  background: transparent;
  border: 0;
}

.search-controls input {
  padding: 0 1rem;
  font-family: var(--serif);
  font-size: 1.08rem;
}

.search-controls input::placeholder {
  color: #74818a;
}

.search-controls select {
  padding: 0 2.6rem 0 1rem;
  border-left: 1px solid var(--line);
  font-size: 0.85rem;
  font-weight: 700;
}

.search-controls button,
.primary-button {
  padding: 0 1.5rem;
  color: white;
  background: var(--accent);
  border: 1px solid var(--accent);
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0.03em;
}

.search-controls button:hover,
.primary-button:hover {
  background: var(--accent-dark);
}

.search-hint {
  margin: 0.65rem 0 0;
  color: var(--ink-soft);
  font-size: 0.78rem;
}

.example-searches {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-items: center;
  margin-top: 1.5rem;
  color: var(--ink-soft);
  font-size: 0.78rem;
}

.example-searches span {
  font-weight: 700;
}

.example-searches button {
  padding: 0.35rem 0.65rem;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
}

.example-searches button:hover {
  background: var(--surface);
  border-color: var(--ink);
}

.principle-card {
  position: relative;
  padding: 2rem;
  color: var(--paper);
  background: var(--ink);
  box-shadow: var(--shadow);
}

.principle-card::before {
  position: absolute;
  top: -10px;
  right: 18px;
  width: 48%;
  height: 10px;
  background: var(--brass);
  content: "";
}

.card-number {
  display: inline-block;
  margin-bottom: 3.3rem;
  color: var(--brass);
  font-family: var(--serif);
  font-size: 0.8rem;
  font-weight: 700;
}

.principle-card h2 {
  margin-bottom: 1rem;
  font-size: 1.7rem;
}

.principle-card p {
  color: #d3d8d9;
  font-size: 0.9rem;
}

.principle-card a {
  color: white;
  font-size: 0.79rem;
  font-weight: 700;
}

.results-section,
.questions-section,
.coverage-section {
  padding: 5.5rem 0;
  border-top: 1px solid var(--line);
}

.section-heading,
.profile-section-heading {
  display: flex;
  gap: 3rem;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 2.3rem;
}

.section-heading h2,
.profile-section-heading h2 {
  margin-bottom: 0;
  font-size: clamp(2rem, 4vw, 3.4rem);
  font-weight: 500;
  letter-spacing: -0.025em;
}

.section-note {
  max-width: 430px;
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 0.85rem;
}

.status-panel {
  padding: 1rem 1.1rem;
  color: var(--ink-soft);
  background: rgb(255 253 248 / 65%);
  border-left: 3px solid var(--brass);
  font-size: 0.9rem;
}

.status-panel.error {
  color: var(--accent-dark);
  border-color: var(--accent);
}

.results-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.result-card {
  display: flex;
  flex-direction: column;
  min-height: 220px;
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--line);
  transition: border-color 150ms ease, transform 150ms ease;
}

.result-card:hover {
  border-color: var(--ink);
  transform: translateY(-2px);
}

.result-card-top,
.profile-kicker {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 1rem;
}

.entity-label,
.scope-badge,
.quality-badge {
  display: inline-flex;
  align-items: center;
  min-height: 1.55rem;
  padding: 0.2rem 0.5rem;
  border-radius: 2px;
  font-size: 0.67rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.entity-label {
  color: var(--paper);
  background: var(--ink);
}

.scope-badge {
  color: var(--success);
  background: #e5eee9;
}

.scope-badge.source-specific {
  color: var(--ink-soft);
  background: var(--paper-deep);
}

.quality-badge {
  color: var(--accent-dark);
  border: 1px solid #d6a497;
}

.result-card h3 {
  margin-bottom: 0.6rem;
  font-size: 1.45rem;
}

.result-explanation {
  margin-bottom: 1rem;
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.result-attributes {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  margin-bottom: 1.2rem;
  color: var(--ink-soft);
  font-size: 0.76rem;
}

.result-card > a {
  margin-top: auto;
  font-size: 0.82rem;
  font-weight: 800;
}

.question-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  background: var(--line);
  border: 1px solid var(--line);
}

.question-grid article {
  display: flex;
  flex-direction: column;
  min-height: 320px;
  padding: 2rem;
  background: var(--surface);
}

.question-grid .card-number {
  margin-bottom: 3.7rem;
}

.question-grid h3 {
  margin-bottom: 1rem;
  font-size: 1.45rem;
}

.question-grid p {
  color: var(--ink-soft);
  font-size: 0.86rem;
}

.question-grid a {
  margin-top: auto;
  font-size: 0.8rem;
  font-weight: 800;
}

.coverage-heading {
  align-items: start;
}

.coverage-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  margin: 2rem 0;
  background: var(--ink);
}

.coverage-stat {
  padding: 1.6rem;
  color: white;
  border-right: 1px solid rgb(255 255 255 / 20%);
}

.coverage-stat:last-child {
  border-right: 0;
}

.coverage-stat strong {
  display: block;
  font-family: var(--serif);
  font-size: 2rem;
  font-weight: 500;
}

.coverage-stat span {
  color: #cfd7d9;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.dataset-list {
  border-top: 1px solid var(--line);
}

.dataset-row {
  display: grid;
  grid-template-columns: minmax(150px, 0.8fr) 1fr 1.4fr;
  gap: 2rem;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--line);
}

.dataset-row h3 {
  margin-bottom: 0.2rem;
  font-family: var(--sans);
  font-size: 0.9rem;
}

.dataset-row p {
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 0.78rem;
}

.dataset-dates strong {
  display: block;
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 500;
}

.dataset-row a {
  font-size: 0.76rem;
  font-weight: 700;
}

.caveat-block {
  display: grid;
  grid-template-columns: 0.7fr 1.7fr;
  gap: 2rem;
  margin-top: 3rem;
  padding: 2rem;
  background: var(--paper-deep);
  border-left: 5px solid var(--accent);
}

.caveat-block h3 {
  margin-bottom: 0;
  font-size: 1.35rem;
}

.caveat-block ul {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--ink-soft);
  font-size: 0.84rem;
}

.caveat-block a {
  grid-column: 2;
  font-size: 0.76rem;
  font-weight: 700;
}

.profile-view {
  min-height: 74vh;
  padding: 3rem 0 6rem;
}

.profile-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 3.5rem;
}

.back-link,
.quiet-link {
  font-size: 0.8rem;
  font-weight: 800;
}

.profile-header {
  display: flex;
  gap: 3rem;
  align-items: end;
  justify-content: space-between;
  padding: 2rem 0 4rem;
}

.profile-header h1 {
  max-width: 900px;
  margin-bottom: 0.7rem;
  font-size: clamp(2.8rem, 6vw, 5.5rem);
  font-weight: 500;
  letter-spacing: -0.04em;
  overflow-wrap: anywhere;
}

.canonical-id {
  margin-bottom: 0;
  color: var(--ink-soft);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.75rem;
  overflow-wrap: anywhere;
}

.secondary-button {
  min-height: 2.7rem;
  padding: 0.55rem 0.9rem;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--ink);
  font-size: 0.77rem;
  font-weight: 800;
}

.secondary-button:hover:not(:disabled) {
  color: white;
  background: var(--ink);
}

.secondary-button:disabled {
  cursor: not-allowed;
  opacity: 0.42;
}

.profile-section {
  padding: 3rem 0;
  border-top: 1px solid var(--line);
}

.profile-section-heading {
  align-items: start;
}

.profile-section-heading h2 {
  font-size: 2rem;
}

.attribute-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  overflow: hidden;
  background: var(--line);
  border: 1px solid var(--line);
}

.attribute-item {
  min-height: 95px;
  padding: 1rem;
  background: var(--surface);
}

.attribute-item dt {
  margin-bottom: 0.35rem;
  color: var(--ink-soft);
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.attribute-item dd {
  margin: 0;
  font-family: var(--serif);
  font-size: 1rem;
  overflow-wrap: anywhere;
}

.relationship-counts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 2rem;
}

.relationship-count {
  padding: 0.45rem 0.65rem;
  color: var(--ink-soft);
  background: var(--surface);
  border: 1px solid var(--line);
  font-size: 0.72rem;
}

.relationship-count strong {
  color: var(--ink);
}

.relationship-list {
  border-top: 1px solid var(--line);
}

.relationship-row {
  display: grid;
  grid-template-columns: minmax(130px, 0.45fr) minmax(220px, 1.2fr) minmax(180px, 1fr);
  gap: 1.5rem;
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--line);
}

.relationship-type {
  color: var(--accent-dark);
  font-size: 0.69rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.relationship-neighbor a {
  display: inline-block;
  margin-bottom: 0.2rem;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.08rem;
  font-weight: 700;
}

.relationship-neighbor span {
  display: block;
  color: var(--ink-soft);
  font-size: 0.7rem;
}

.relationship-properties {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 0.8rem;
  align-content: start;
  color: var(--ink-soft);
  font-size: 0.71rem;
}

.relationship-properties a {
  font-weight: 700;
}

.pagination {
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: center;
  margin-top: 2rem;
}

.pagination span {
  min-width: 170px;
  color: var(--ink-soft);
  font-size: 0.75rem;
  text-align: center;
}

.empty-note {
  padding: 2rem 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-style: italic;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 130px;
  border-top: 1px solid var(--line);
}

.site-footer p {
  margin-bottom: 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 0.88rem;
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 4.5rem;
  }

  .principle-card {
    max-width: 570px;
  }

  .results-list,
  .question-grid {
    grid-template-columns: 1fr;
  }

  .question-grid article {
    min-height: 235px;
  }

  .question-grid .card-number {
    margin-bottom: 2rem;
  }

  .dataset-row {
    grid-template-columns: 0.8fr 1fr;
  }

  .dataset-row > :last-child {
    grid-column: 1 / -1;
  }

  .relationship-row {
    grid-template-columns: 0.45fr 1fr;
  }

  .relationship-properties {
    grid-column: 2;
  }
}

@media (max-width: 680px) {
  .site-header,
  .site-footer,
  main {
    width: min(100% - 2rem, 1180px);
  }

  .site-header {
    align-items: flex-start;
    padding: 1.2rem 0;
  }

  .wordmark-name {
    display: none;
  }

  .site-nav {
    gap: 0.9rem;
  }

  .site-nav a:first-child {
    display: none;
  }

  .hero-grid {
    gap: 3rem;
    padding: 3.5rem 0;
  }

  .hero-copy h1 {
    font-size: clamp(2.7rem, 14vw, 4.2rem);
  }

  .search-controls {
    grid-template-columns: 1fr;
  }

  .search-controls select {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .search-controls button {
    min-height: 3.5rem;
  }

  .section-heading,
  .profile-section-heading,
  .profile-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .section-heading {
    gap: 1rem;
  }

  .coverage-summary,
  .attribute-list {
    grid-template-columns: 1fr;
  }

  .coverage-stat {
    border-right: 0;
    border-bottom: 1px solid rgb(255 255 255 / 20%);
  }

  .dataset-row,
  .caveat-block,
  .relationship-row {
    grid-template-columns: 1fr;
    gap: 0.6rem;
  }

  .dataset-row > :last-child,
  .caveat-block a,
  .relationship-properties {
    grid-column: 1;
  }

  .profile-header {
    gap: 1.5rem;
  }

  .profile-header h1 {
    font-size: 2.8rem;
  }

  .site-footer {
    gap: 1rem;
    padding: 2rem 0;
  }

  .site-footer div {
    flex-wrap: wrap;
    gap: 0.8rem 1.2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}