:root {
  --ui-color-focus: #bda36b;
  --ui-font-display: "Iowan Old Style", "Hoefler Text", Baskerville, Georgia, serif;
  --ui-font-sans: "Avenir Next", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --ui-font-condensed: "Avenir Next Condensed", "Arial Narrow", sans-serif;
  --ui-font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --ui-radius-small: 0.2rem;
  --ui-focus-width: 2px;
}

*, *::before, *::after { box-sizing: border-box; }
html { font-family: var(--ui-font-sans); }
body { margin: 0; }
[hidden] { display: none !important; }
button, input, select, textarea { font: inherit; border-radius: var(--ui-radius-small); }
button:not(:disabled), select:not(:disabled), input[type="range"]:not(:disabled) { cursor: pointer; }
:disabled { cursor: not-allowed; opacity: 0.62; }
:where(a, button, input, select, textarea, [tabindex]):focus-visible {
  outline: var(--ui-focus-width) solid var(--ui-color-focus);
  outline-offset: 0.25rem;
}

:root {
  color-scheme: dark;
  --ink: #061722;
  --ink-raised: #0a2230;
  --ink-soft: #102c39;
  --cloth: #e7dfca;
  --cloth-muted: #a8aa9d;
  --cyan: #63b8bd;
  --cyan-soft: rgba(99, 184, 189, 0.13);
  --copper: #c47752;
  --brass: var(--ui-color-focus);
  --warning: #dd8d63;
  --rule: rgba(231, 223, 202, 0.14);
  --rule-strong: rgba(231, 223, 202, 0.3);
  --field: rgba(6, 23, 34, 0.84);
  --placeholder: rgba(168, 170, 157, 0.6);
  --copper-wash: rgba(196, 119, 82, 0.14);
  --drawing-board: rgba(10, 34, 48, 0.5);
  --drawing-grid: rgba(99, 184, 189, 0.18);
  --error-bg: #201918;
  --error-code: rgba(0, 0, 0, 0.25);
  --panel-shadow: rgba(0, 0, 0, 0.45);
  --display: var(--ui-font-display);
  --sans: var(--ui-font-sans);
  --condensed: var(--ui-font-condensed);
  --mono: var(--ui-font-mono);
}

:root[data-atlas-theme="day"] {
  color-scheme: light;
  --ink: #dbe5e1;
  --ink-raised: #eef3f0;
  --ink-soft: #c8d6d1;
  --cloth: #102b31;
  --cloth-muted: #556c6f;
  --cyan: #397b7d;
  --cyan-soft: rgba(57, 123, 125, 0.13);
  --copper: #9a4f3d;
  --brass: #786632;
  --warning: #a9573e;
  --rule: rgba(16, 43, 49, 0.15);
  --rule-strong: rgba(16, 43, 49, 0.32);
  --field: rgba(238, 243, 240, 0.88);
  --placeholder: rgba(85, 108, 111, 0.68);
  --copper-wash: rgba(154, 79, 61, 0.13);
  --drawing-board: rgba(200, 214, 209, 0.62);
  --drawing-grid: rgba(57, 123, 125, 0.2);
  --error-bg: #f3e4de;
  --error-code: rgba(16, 43, 49, 0.08);
  --panel-shadow: rgba(16, 43, 49, 0.2);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--ink);
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    linear-gradient(rgba(99, 184, 189, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99, 184, 189, 0.025) 1px, transparent 1px),
    radial-gradient(circle at 72% 2%, rgba(196, 119, 82, 0.1), transparent 34rem),
    var(--ink);
  background-size: 38px 38px, 38px 38px, auto, auto;
  color: var(--cloth);
  font-family: var(--sans);
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.6rem 0.8rem;
  color: var(--ink);
  background: var(--cloth);
  transform: translateY(-180%);
}

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

button,
input,
select {
  font: inherit;
}

button,
a,
input,
select {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 2px solid var(--brass);
  outline-offset: 3px;
}

[hidden] {
  display: none !important;
}

.atlas-shell {
  width: min(1560px, 100%);
  margin: 0 auto;
  padding: 24px clamp(18px, 4vw, 64px) 42px;
}

.atlas-register {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) minmax(260px, 0.48fr);
  gap: clamp(24px, 5vw, 84px);
  min-height: 310px;
  padding: 72px 0 46px;
  border-bottom: 1px solid var(--rule-strong);
  position: relative;
}

.return-link {
  position: absolute;
  top: 6px;
  left: 0;
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  gap: 10px;
  color: var(--cloth-muted);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-decoration: none;
  text-transform: uppercase;
}

.atlas-theme-toggle {
  position: absolute;
  top: 6px;
  right: 0;
  display: inline-flex;
  min-height: 38px;
  align-items: baseline;
  gap: 9px;
  padding: 0;
  border: 0;
  border-bottom: 1px solid var(--rule-strong);
  background: transparent;
  color: var(--cloth-muted);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.atlas-theme-toggle strong {
  color: var(--cloth);
  font-family: var(--condensed);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.return-link:hover {
  color: var(--cloth);
}

.return-link span {
  color: var(--cyan);
  font-size: 16px;
}

.atlas-mark {
  position: relative;
  display: grid;
  width: 68px;
  height: 68px;
  place-items: center;
  align-self: start;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font-family: var(--condensed);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
}

.atlas-mark::before,
.atlas-mark::after {
  position: absolute;
  background: var(--cyan);
  content: "";
}

.atlas-mark::before {
  width: 88px;
  height: 1px;
}

.atlas-mark::after {
  width: 1px;
  height: 88px;
}

.atlas-mark span,
.atlas-mark i {
  position: relative;
  z-index: 1;
  padding: 2px 4px;
  background: var(--ink);
}

.atlas-mark i {
  position: absolute;
  right: -7px;
  bottom: -8px;
  color: var(--copper);
  font-family: var(--display);
  font-size: 22px;
  font-style: italic;
  font-weight: 400;
}

.register-kicker,
.section-heading p,
.coverage-lead,
.edition-register dt,
.coverage-grid dt,
.search-field > span,
.calculation-picker > span,
.result-label,
.historical-caveat,
.drawing-board__register,
.atlas-footer,
.atlas-status {
  font-family: var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.register-kicker {
  margin: 1px 0 28px;
  color: var(--brass);
  font-size: 10px;
}

.atlas-title h1 {
  max-width: 760px;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(58px, 8vw, 124px);
  font-weight: 400;
  letter-spacing: -0.065em;
  line-height: 0.76;
}

.atlas-title h1 em {
  display: block;
  margin-left: clamp(34px, 7vw, 112px);
  color: transparent;
  font-family: var(--condensed);
  font-size: 0.6em;
  font-style: normal;
  font-weight: 300;
  letter-spacing: -0.03em;
  -webkit-text-stroke: 1px var(--cloth);
}

.atlas-deck {
  max-width: 580px;
  margin: 30px 0 0;
  color: var(--cloth-muted);
  font-family: var(--display);
  font-size: clamp(17px, 1.5vw, 23px);
  line-height: 1.5;
}

.edition-register {
  align-self: end;
  margin: 0;
  border-top: 1px solid var(--rule-strong);
}

.edition-register div {
  padding: 13px 0;
  border-bottom: 1px solid var(--rule);
}

.edition-register dt,
.edition-register dd {
  margin: 0;
}

.edition-register dt {
  margin-bottom: 7px;
  color: var(--cloth-muted);
  font-size: 8px;
}

.edition-register dd {
  font-family: var(--mono);
  font-size: 10px;
  line-height: 1.55;
}

.coverage-register {
  display: grid;
  grid-template-columns: minmax(180px, 0.6fr) minmax(0, 2.4fr);
  gap: 30px;
  padding: 25px 0 30px;
  border-bottom: 1px solid var(--rule-strong);
}

.coverage-lead {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  color: var(--cloth-muted);
  font-size: 8px;
}

.coverage-lead p {
  margin: 3px 0 0;
}

.section-index {
  flex: 0 0 auto;
  color: var(--copper);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
}

.coverage-grid {
  display: grid;
  grid-template-columns: repeat(10, minmax(70px, 1fr));
  margin: 0;
}

.coverage-grid div {
  min-height: 74px;
  padding: 2px 18px 0;
  border-left: 1px solid var(--rule);
}

.coverage-grid dt,
.coverage-grid dd {
  margin: 0;
}

.coverage-grid dt {
  min-height: 25px;
  color: var(--cloth-muted);
  font-size: 7px;
  line-height: 1.4;
}

.coverage-grid dd {
  margin-top: 6px;
  font-family: var(--display);
  font-size: 34px;
  line-height: 1;
}

main > section,
.catalogue-rail,
.atlas-workspace {
  margin-top: clamp(62px, 8vw, 118px);
}

.catalogue-rail {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule-strong);
}

.catalogue-rail button {
  position: relative;
  display: grid;
  min-height: 154px;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-rows: auto 1fr;
  gap: 12px 20px;
  padding: 21px 20px 18px;
  overflow: hidden;
  border: 0;
  border-right: 1px solid var(--rule);
  background: transparent;
  color: var(--cloth);
  cursor: pointer;
  text-align: left;
}

.catalogue-rail button:last-child {
  border-right: 0;
}

.catalogue-rail button::after {
  position: absolute;
  right: -9px;
  bottom: -31px;
  color: transparent;
  content: attr(data-atlas-view);
  font-family: var(--condensed);
  font-size: 76px;
  font-weight: 700;
  letter-spacing: -0.06em;
  line-height: 1;
  opacity: 0;
  text-transform: uppercase;
  -webkit-text-stroke: 1px rgba(99, 184, 189, 0.18);
  transition: opacity 160ms ease, transform 160ms ease;
}

.catalogue-rail button:hover,
.catalogue-rail button[aria-pressed="true"] {
  background: var(--cyan-soft);
}

.catalogue-rail button[aria-pressed="true"]::after {
  opacity: 1;
  transform: translateX(-8px);
}

.catalogue-rail span,
.catalogue-rail small {
  position: relative;
  z-index: 1;
  font-family: var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.catalogue-rail span {
  color: var(--cyan);
  font-size: 9px;
}

.catalogue-rail strong {
  position: relative;
  z-index: 1;
  color: var(--copper);
  font-family: var(--display);
  font-size: 32px;
  font-weight: 400;
  line-height: 0.8;
}

.catalogue-rail small {
  position: relative;
  z-index: 1;
  align-self: end;
  max-width: 190px;
  color: var(--cloth-muted);
  font-size: 7px;
  line-height: 1.6;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(72px, 0.34fr) 1.66fr;
  gap: 20px;
  align-items: start;
}

.section-heading p,
.section-heading h2 {
  margin: 0;
}

.section-heading p {
  margin-bottom: 10px;
  color: var(--cloth-muted);
  font-size: 8px;
}

.section-heading h2 {
  font-family: var(--display);
  font-size: clamp(28px, 3vw, 46px);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 1.05;
}

.section-heading--compact {
  grid-template-columns: 58px 1fr;
}

.section-heading--compact h2 {
  font-size: clamp(25px, 2.5vw, 38px);
}

.chapter-stations {
  display: grid;
  grid-template-columns: repeat(9, minmax(90px, 1fr));
  margin-top: 40px;
  overflow-x: auto;
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule-strong);
}

.chapter-station {
  position: relative;
  min-width: 104px;
  min-height: 155px;
  padding: 23px 13px 17px;
  border: 0;
  border-right: 1px solid var(--rule);
  background: transparent;
  color: inherit;
  cursor: pointer;
  text-align: left;
}

.chapter-station::before {
  position: absolute;
  top: -4px;
  left: 12px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 5px var(--ink);
  content: "";
}

.chapter-station:hover,
.chapter-station:focus-visible {
  background: var(--cyan-soft);
}

.chapter-station__number {
  display: block;
  margin-bottom: 38px;
  color: var(--copper);
  font-family: var(--display);
  font-size: 24px;
}

.chapter-station__title {
  display: block;
  font-family: var(--condensed);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1.35;
  text-transform: uppercase;
}

.chapter-station__pages {
  display: block;
  margin-top: 9px;
  color: var(--cloth-muted);
  font-family: var(--mono);
  font-size: 7px;
}

.atlas-workspace {
  display: grid;
  grid-template-columns: minmax(330px, 0.8fr) minmax(380px, 1.2fr);
  min-height: 720px;
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule-strong);
}

.atlas-workspace[data-atlas-view="illustrations"] {
  grid-template-columns: minmax(0, 1fr);
}

.atlas-workspace[data-atlas-view="illustrations"] .evidence-workspace {
  padding-right: 0;
  border-right: 0;
}

.atlas-workspace[data-atlas-view="illustrations"] .evidence-detail {
  display: none;
}

.evidence-workspace {
  padding: 36px clamp(22px, 3vw, 46px) 38px 0;
  border-right: 1px solid var(--rule-strong);
}

.search-field {
  display: block;
  margin-top: 38px;
}

.search-field > span:first-child,
.calculation-picker > span {
  display: block;
  margin-bottom: 9px;
  color: var(--cloth-muted);
  font-size: 8px;
}

.search-field__control {
  position: relative;
  display: block;
}

.search-field input,
.calculation-picker select,
.calculation-field input,
.calculation-field select {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--rule-strong);
  border-radius: 0;
  background: var(--field);
  color: var(--cloth);
}

.search-field input {
  padding: 0 52px 0 15px;
  font-family: var(--display);
  font-size: 17px;
}

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

.search-field kbd {
  position: absolute;
  top: 12px;
  right: 12px;
  display: grid;
  width: 25px;
  height: 25px;
  place-items: center;
  border: 1px solid var(--rule);
  color: var(--cloth-muted);
  font-family: var(--mono);
  font-size: 9px;
}

.kind-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 15px;
}

.kind-filter {
  min-height: 30px;
  padding: 5px 9px;
  border: 1px solid var(--rule);
  background: transparent;
  color: var(--cloth-muted);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 7px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.kind-filter:hover,
.kind-filter[aria-pressed="true"] {
  border-color: var(--cyan);
  background: var(--cyan-soft);
  color: var(--cloth);
}

.atlas-status {
  margin: 20px 0 10px;
  color: var(--cloth-muted);
  font-size: 7px;
}

.evidence-list {
  max-height: 390px;
  margin: 0;
  padding: 0;
  overflow: auto;
  border-top: 1px solid var(--rule);
  list-style: none;
  scrollbar-color: var(--rule-strong) transparent;
}

.illustration-gallery {
  display: grid;
  min-width: 0;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 28px);
  margin-top: 10px;
  padding: clamp(18px, 2.4vw, 34px) 0 0;
  border-top: 1px solid var(--rule-strong);
}

.illustration-gallery__empty {
  grid-column: 1 / -1;
}

.illustration-card {
  min-width: 0;
  border: 1px solid var(--rule);
  background: var(--ink-raised);
}

.illustration-card__link {
  display: block;
  min-width: 0;
  padding: 10px;
  color: inherit;
  text-decoration: none;
}

.illustration-card__link:hover {
  background: var(--cyan-soft);
}

.illustration-card__leaf {
  display: grid;
  min-width: 0;
  margin: 0;
}

.illustration-card__image {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  background: #e6e0d3;
  object-fit: contain;
}

.illustration-card__caption {
  display: grid;
  min-width: 0;
  gap: 8px;
  padding: 15px 5px 6px;
  border-top: 1px solid var(--rule);
}

.illustration-card__folio {
  color: var(--copper);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.illustration-card__title {
  overflow-wrap: anywhere;
  font-family: var(--display);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.3;
}

.illustration-card__references {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.illustration-card__reference {
  padding: 4px 6px;
  border: 1px solid rgba(99, 184, 189, 0.42);
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 7px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.illustration-card__reference--plate {
  border-color: rgba(196, 119, 82, 0.5);
  color: var(--copper);
}

.evidence-record button,
.evidence-record .record-link {
  display: grid;
  width: 100%;
  grid-template-columns: 76px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  min-height: 62px;
  padding: 10px 7px;
  border: 0;
  border-bottom: 1px solid var(--rule);
  background: transparent;
  color: inherit;
  cursor: pointer;
  text-decoration: none;
  text-align: left;
}

.evidence-record button:hover,
.evidence-record button[aria-current="true"],
.evidence-record .record-link:hover,
.evidence-record .record-link[aria-current="true"] {
  background: var(--cyan-soft);
}

.figure-index {
  color: var(--copper);
  font-family: var(--display);
  font-size: 19px;
}

.page-index {
  color: var(--copper);
  font-family: var(--mono);
  font-size: 17px;
  letter-spacing: 0.08em;
}

.source-page-record__link {
  grid-template-areas:
    "index name meta"
    "index section meta";
  grid-template-columns: 62px minmax(0, 1fr) auto !important;
  align-items: center;
}

.source-page-record__link .page-index { grid-area: index; }
.source-page-record__link .record-name { grid-area: name; align-self: end; }
.source-page-record__link .record-meta { grid-area: meta; }

.source-page-record__section {
  grid-area: section;
  align-self: start;
  color: var(--cloth-muted);
  font-family: var(--mono);
  font-size: 7px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.record-kind,
.record-source {
  color: var(--cloth-muted);
  font-family: var(--mono);
  font-size: 7px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.record-name {
  font-family: var(--display);
  font-size: 15px;
  line-height: 1.25;
}

.record-source {
  max-width: 86px;
  text-align: right;
}

.record-meta {
  display: grid;
  justify-items: end;
  gap: 5px;
}

.record-payload {
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 7px;
  letter-spacing: 0.06em;
  text-align: right;
  text-transform: uppercase;
}

.empty-results {
  padding: 32px 8px;
  color: var(--cloth-muted);
  font-family: var(--display);
  font-size: 17px;
}

.evidence-detail {
  position: relative;
  min-width: 0;
  padding: 38px 0 38px clamp(28px, 5vw, 82px);
  overflow: hidden;
}

.evidence-detail::before {
  position: absolute;
  top: 0;
  right: 0;
  width: 260px;
  height: 260px;
  border: 1px solid var(--rule);
  border-radius: 50%;
  content: "";
  opacity: 0.45;
  transform: translate(45%, -45%);
}

.detail-empty {
  display: grid;
  min-height: 500px;
  place-content: center;
  color: var(--cloth-muted);
  text-align: center;
}

.detail-empty p {
  max-width: 290px;
  font-family: var(--display);
  font-size: 19px;
  line-height: 1.5;
}

.detail-crosshair {
  position: relative;
  display: block;
  width: 86px;
  height: 86px;
  margin: 0 auto 20px;
  border: 1px solid var(--rule-strong);
  border-radius: 50%;
}

.detail-crosshair::before,
.detail-crosshair::after {
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--rule-strong);
  content: "";
  transform: translate(-50%, -50%);
}

.detail-crosshair::before { width: 120px; height: 1px; }
.detail-crosshair::after { width: 1px; height: 120px; }

.detail-kind {
  margin: 0 0 24px;
  color: var(--copper);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.evidence-detail h3 {
  max-width: 720px;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(40px, 5vw, 76px);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 0.95;
}

.detail-id {
  margin: 18px 0 0;
  color: var(--cloth-muted);
  font-family: var(--mono);
  font-size: 8px;
}

.detail-permalink {
  display: inline-flex;
  margin-top: 14px;
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}

.detail-permalink:hover {
  color: var(--cloth);
}

.detail-subtitle {
  max-width: 720px;
  margin: 22px 0 0;
  color: var(--cloth-muted);
  font-family: var(--display);
  font-size: 18px;
  line-height: 1.5;
}

.evidence-state {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 34px;
  padding: 8px 10px;
  border: 1px solid rgba(99, 184, 189, 0.42);
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.evidence-state::before {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  content: "";
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
  margin-top: 46px;
}

.detail-section {
  min-width: 0;
  padding-top: 13px;
  border-top: 1px solid var(--rule-strong);
}

.detail-section h4 {
  margin: 0 0 13px;
  color: var(--cloth-muted);
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 400;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.detail-section p,
.detail-section li {
  font-family: var(--display);
  font-size: 15px;
  line-height: 1.55;
}

.detail-section ul {
  margin: 0;
  padding-left: 18px;
}

.detail-section p {
  margin: 0;
}

.detail-source-list {
  grid-column: 1 / -1;
}

.detail-taxonomy {
  grid-column: 1 / -1;
}

.taxonomy-summary {
  color: var(--copper);
  font-family: var(--mono) !important;
  font-size: 10px !important;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.taxonomy-claims {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px 28px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.taxonomy-claims li { padding: 12px 0; border-top: 1px solid var(--rule); }
.taxonomy-claims a { color: var(--cloth); text-decoration-color: var(--copper); text-underline-offset: 3px; }
.taxonomy-claims small { display: block; margin-top: 5px; color: var(--cloth-muted); font: 8px/1.5 var(--mono); text-transform: uppercase; }

.detail-reading {
  grid-column: 1 / -1;
  max-width: 760px;
}

.detail-exclusions {
  border-top-color: rgba(212, 131, 91, 0.58);
}

.detail-limitations {
  border-top-color: rgba(221, 141, 99, 0.65);
}

.detail-data-register,
.detail-legends,
.detail-data-table,
.detail-limitations,
.detail-source-preview,
.detail-plate-facsimile,
.detail-related-records {
  grid-column: 1 / -1;
}

.detail-plate-facsimile .source-page-figure {
  max-width: 1200px;
}

.detail-plate-facsimile .source-page-figure img {
  max-height: none;
}

.source-page-figure {
  margin: 0;
  border: 1px solid var(--rule-strong);
  background: #d8d3c5;
}

.source-page-figure img {
  display: block;
  width: 100%;
  max-height: 78vh;
  object-fit: contain;
  object-position: top center;
}

.source-page-figure figcaption {
  padding: 10px 12px;
  border-top: 1px solid rgba(6, 23, 34, 0.22);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 8px;
  line-height: 1.5;
  text-transform: uppercase;
}

.source-page-image-link {
  display: block;
  cursor: zoom-in;
}

.source-page-open {
  display: inline-flex;
  margin-top: 12px;
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}

.source-page-open:hover {
  color: var(--cloth);
}

.source-page-navigation {
  display: grid;
  grid-template-columns: minmax(120px, 1fr) auto minmax(120px, 1fr);
  gap: 14px;
  align-items: end;
  margin-top: 34px;
  padding: 13px 0;
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule-strong);
}

.source-page-navigation > a,
.source-page-navigation > span {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.07em;
  text-decoration: none;
  text-transform: uppercase;
}

.source-page-navigation > :last-child {
  justify-self: end;
}

.source-page-navigation .is-disabled {
  color: var(--cloth-muted);
  opacity: 0.45;
}

.source-page-jump {
  display: grid;
  grid-template-columns: auto 64px auto;
  gap: 7px;
  align-items: center;
}

.source-page-jump label {
  color: var(--cloth-muted);
  font-family: var(--mono);
  font-size: 7px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.source-page-jump input,
.source-page-jump button {
  min-height: 36px;
  border: 1px solid var(--rule-strong);
  background: var(--field);
  color: var(--cloth);
}

.source-page-jump input {
  width: 64px;
  padding: 0 8px;
}

.source-page-jump button {
  padding: 0 10px;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 7px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.source-reader {
  margin-top: 28px;
}

.source-page-figure--reader {
  position: relative;
  border-color: rgba(191, 170, 112, 0.5);
  box-shadow: 0 24px 60px var(--panel-shadow);
}

.source-page-figure--reader::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: -8px;
  width: 3px;
  background: var(--copper);
  content: "";
}

.source-page-figure--reader img {
  max-height: none;
}

.page-relationships {
  margin-top: 34px;
}

.page-relationship-groups {
  display: grid;
  gap: 28px;
}

.page-relationship-group h5 {
  margin: 0 0 10px;
  color: var(--brass);
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.page-calculation-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-calculation-links .open-calculation {
  margin-top: 0;
}

.page-relationship-empty {
  grid-column: 1 / -1;
  padding: 15px;
  background: var(--ink);
  color: var(--cloth-muted);
  font-family: var(--display);
  list-style: none;
}

.related-record-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  background: var(--rule);
  list-style: none;
}

.related-record-list a {
  display: grid;
  min-height: 68px;
  align-content: center;
  padding: 12px 14px;
  background: var(--ink);
  color: var(--cloth);
  font-family: var(--display);
  font-size: 14px;
  line-height: 1.35;
  text-decoration: none;
}

.related-record-list a span {
  margin-bottom: 5px;
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 7px;
  text-transform: uppercase;
}

.related-record-list a:hover {
  background: var(--cyan-soft);
}

.detail-legends h5 {
  margin: 22px 0 9px;
  color: var(--brass);
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.detail-definitions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 28px;
  margin: 0;
}

.detail-definitions div {
  display: grid;
  grid-template-columns: minmax(90px, 0.65fr) minmax(0, 1.35fr);
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--rule);
}

.detail-definitions dt,
.detail-definitions dd {
  margin: 0;
}

.detail-definitions dt {
  color: var(--cloth-muted);
  font-family: var(--mono);
  font-size: 8px;
  text-transform: uppercase;
}

.detail-definitions dd {
  font-family: var(--display);
  font-size: 13px;
  line-height: 1.45;
}

.data-table-scroll {
  max-height: min(62vh, 680px);
  overflow: auto;
  border: 1px solid var(--rule-strong);
  scrollbar-color: var(--rule-strong) transparent;
}

.data-table-scroll:focus-visible {
  outline: 2px solid var(--brass);
  outline-offset: 3px;
}

.record-data-table {
  width: 100%;
  min-width: max-content;
  border-collapse: collapse;
  color: var(--cloth);
  font-family: var(--mono);
  font-size: 9px;
  font-variant-numeric: tabular-nums;
}

.record-data-table caption {
  padding: 12px 14px;
  border-bottom: 1px solid var(--rule-strong);
  color: var(--cloth-muted);
  text-align: left;
}

.record-data-table th,
.record-data-table td {
  max-width: 300px;
  padding: 9px 12px;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  line-height: 1.45;
  overflow-wrap: anywhere;
  vertical-align: top;
}

.record-data-table th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: var(--ink-raised);
  color: var(--cyan);
  font-size: 8px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-align: left;
  text-transform: uppercase;
}

.record-data-table tbody tr:hover td {
  background: var(--cyan-soft);
}

.source-chip {
  display: inline-flex;
  align-items: stretch;
  margin: 0 7px 7px 0;
  border: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 8px;
}

.source-chip:focus-within,
.source-chip:hover {
  border-color: var(--cyan);
  background: var(--cyan-soft);
}

.source-object-link a {
  padding: 7px 9px;
  color: var(--cloth);
  text-decoration: none;
}

.source-object-link__primary {
  font-weight: 700;
}

.source-object-link__leaf {
  border-left: 1px solid var(--rule);
  color: var(--cloth-muted) !important;
}

.source-object-link a:hover {
  color: var(--cyan) !important;
}

.open-calculation {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  gap: 15px;
  margin-top: 34px;
  padding: 0 14px;
  border: 1px solid var(--copper);
  background: transparent;
  color: var(--cloth);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.open-calculation:hover {
  background: var(--copper-wash);
}

.scantling-bench {
  display: grid;
  grid-template-columns: minmax(260px, 0.62fr) minmax(440px, 1.4fr) minmax(260px, 0.72fr);
  min-height: 660px;
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule-strong);
}

.bench-controls,
.result-register {
  padding: 34px clamp(18px, 2.4vw, 38px);
}

.bench-controls {
  padding-left: 0;
  border-right: 1px solid var(--rule-strong);
}

.calculation-picker {
  display: block;
  margin-top: 42px;
}

.calculation-picker select,
.calculation-field input,
.calculation-field select {
  padding: 0 12px;
  font-family: var(--mono);
  font-size: 10px;
}

.calculation-inputs {
  margin-top: 22px;
}

.calculation-scope {
  margin-top: 16px;
  padding: 11px 12px;
  border: 1px solid var(--rule);
  color: var(--cloth-muted);
  font-family: var(--mono);
  font-size: 7px;
  line-height: 1.55;
  text-transform: uppercase;
}

.calculation-scope p {
  margin: 0;
}

.calculation-scope__exclusions {
  margin-top: 5px !important;
  color: var(--warning);
}

.calculation-field label {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
  color: var(--cloth-muted);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.calculation-field label output {
  color: var(--cyan);
}

.calculate-button {
  display: flex;
  width: 100%;
  min-height: 52px;
  align-items: center;
  justify-content: space-between;
  margin-top: 16px;
  padding: 0 15px;
  border: 1px solid var(--copper);
  background: var(--copper);
  color: var(--ink);
  cursor: pointer;
  font-family: var(--condensed);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.calculate-button:hover {
  background: #d48861;
}

.historical-caveat {
  margin: 26px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--warning);
  color: var(--cloth-muted);
  font-size: 7px;
  line-height: 1.7;
}

.drawing-board {
  position: relative;
  display: grid;
  min-width: 0;
  place-items: center;
  padding: 44px 20px 20px;
  overflow: hidden;
  background:
    radial-gradient(circle at center, rgba(99, 184, 189, 0.08), transparent 52%),
    var(--drawing-board);
}

.drawing-board__register {
  position: absolute;
  top: 16px;
  right: 18px;
  left: 18px;
  display: flex;
  justify-content: space-between;
  color: var(--cloth-muted);
  font-size: 7px;
}

#spar-profile {
  display: block;
  width: 100%;
  max-width: 800px;
  color: var(--drawing-grid);
}

.profile-waterline,
.profile-axis {
  stroke: var(--cyan);
  stroke-width: 0.8;
  stroke-dasharray: 5 8;
}

.profile-waterline {
  stroke: var(--rule-strong);
}

.spar-silhouette {
  fill: var(--copper-wash);
  stroke: var(--copper);
  stroke-width: 1.4;
}

.spar-stations line {
  stroke: var(--cloth);
  stroke-width: 1;
}

.spar-stations .rake-mast {
  stroke: var(--copper);
  stroke-width: 5;
  stroke-linecap: round;
}

.spar-stations circle {
  fill: var(--ink-soft);
  stroke: var(--brass);
}

.spar-stations text,
.profile-notation text {
  fill: var(--cloth-muted);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.05em;
}

.result-register {
  display: grid;
  align-content: start;
  gap: 34px;
  border-left: 1px solid var(--rule-strong);
}

.result-label {
  margin: 0 0 14px;
  color: var(--cloth-muted);
  font-size: 8px;
}

.calculation-results dl {
  margin: 0;
}

.calculation-results div {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  padding: 11px 0;
  border-top: 1px solid var(--rule);
}

.calculation-results dt,
.calculation-results dd {
  margin: 0;
}

.calculation-results dt {
  color: var(--cloth-muted);
  font-family: var(--mono);
  font-size: 8px;
  line-height: 1.4;
  text-transform: uppercase;
}

.calculation-results dd {
  color: var(--cloth);
  font-family: var(--display);
  font-size: 20px;
}

.calculation-trace ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.calculation-trace li {
  position: relative;
  padding: 0 0 16px 24px;
  color: var(--cloth-muted);
  font-family: var(--mono);
  font-size: 8px;
  line-height: 1.55;
}

.calculation-trace li::before {
  position: absolute;
  top: 4px;
  left: 2px;
  width: 6px;
  height: 6px;
  border: 1px solid var(--cyan);
  border-radius: 50%;
  content: "";
}

.calculation-trace li:not(:last-child)::after {
  position: absolute;
  top: 12px;
  bottom: 2px;
  left: 5px;
  width: 1px;
  background: var(--rule-strong);
  content: "";
}

.calculation-trace .calculation-warning {
  color: var(--warning);
}

.calculation-trace .calculation-warning::before {
  border-color: var(--warning);
}

.trace-source {
  display: block;
  margin-top: 4px;
  color: var(--cyan);
  text-decoration: none;
}

.calculation-error {
  color: var(--warning);
  font-family: var(--mono);
  font-size: 9px;
  line-height: 1.6;
}

.audit-strip {
  display: grid;
  grid-template-columns: minmax(280px, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(30px, 7vw, 110px);
  padding: 36px 0 44px;
  border-bottom: 1px solid var(--rule-strong);
}

.blocking-issues {
  margin: 0;
  padding: 0;
  list-style: none;
}

.blocking-issue {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: 16px;
  padding: 14px 0;
  border-top: 1px solid var(--rule);
}

.blocking-issue__table,
.blocking-issue__page {
  color: var(--warning);
  font-family: var(--mono);
  font-size: 8px;
  text-transform: uppercase;
}

.blocking-issue p {
  margin: 0;
  color: var(--cloth-muted);
  font-family: var(--display);
  font-size: 14px;
  line-height: 1.45;
}

.audit-summary {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 22px;
  align-items: baseline;
  padding: 16px 0;
  border-top: 1px solid var(--rule);
}

.audit-summary__value {
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.audit-summary p {
  margin: 0;
  color: var(--cloth-muted);
  font-family: var(--display);
  font-size: 16px;
  line-height: 1.55;
}

.audit-provenance {
  display: grid;
  grid-column: 2;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 22px;
  margin: 8px 0 0;
}

.audit-provenance div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding-top: 7px;
  border-top: 1px solid var(--rule);
}

.audit-provenance dt,
.audit-provenance dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 7px;
  text-transform: uppercase;
}

.audit-provenance dt {
  color: var(--cloth-muted);
}

.audit-provenance dd {
  color: var(--cyan);
}

.atlas-footer {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  padding-top: 25px;
  color: var(--cloth-muted);
  font-size: 7px;
}

.atlas-footer p {
  margin: 0;
}

.atlas-error {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 10;
  width: min(460px, calc(100vw - 40px));
  padding: 20px;
  border: 1px solid var(--warning);
  background: var(--error-bg);
  box-shadow: 0 24px 70px var(--panel-shadow);
}

.atlas-error strong {
  font-family: var(--display);
  font-size: 20px;
  font-weight: 400;
}

.atlas-error p,
.atlas-error code {
  font-family: var(--mono);
  font-size: 9px;
  line-height: 1.6;
}

.atlas-error code {
  display: block;
  padding: 10px;
  background: var(--error-code);
  color: var(--cloth);
  white-space: normal;
}

@media (max-width: 1120px) {
  .atlas-register {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .edition-register {
    grid-column: 2;
  }

  .scantling-bench {
    grid-template-columns: minmax(250px, 0.7fr) minmax(420px, 1.3fr);
  }

  .result-register {
    grid-column: 1 / -1;
    grid-template-columns: 1fr 1fr;
    border-top: 1px solid var(--rule-strong);
    border-left: 0;
  }

  .illustration-gallery {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 780px) {
  .atlas-shell {
    padding-inline: 18px;
  }

  .atlas-register {
    grid-template-columns: 1fr;
    gap: 30px;
    padding-top: 68px;
  }

  .atlas-mark {
    width: 52px;
    height: 52px;
  }

  .atlas-title h1 em {
    margin-left: 0;
  }

  .edition-register {
    grid-column: auto;
  }

  .coverage-register,
  .audit-strip {
    grid-template-columns: 1fr;
  }

  .coverage-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .catalogue-rail button:nth-child(2n) {
    border-right: 0;
  }

  .catalogue-rail button:nth-child(-n + 4) {
    border-bottom: 1px solid var(--rule);
  }

  .catalogue-rail button:last-child {
    grid-column: auto;
  }

  .coverage-grid div {
    margin-bottom: 16px;
  }

  .section-heading,
  .section-heading--compact {
    grid-template-columns: 44px 1fr;
  }

  .atlas-workspace,
  .scantling-bench {
    grid-template-columns: 1fr;
  }

  .evidence-workspace {
    padding-right: 0;
    border-right: 0;
  }

  .evidence-detail {
    min-height: 520px;
    padding-left: 0;
    border-top: 1px solid var(--rule-strong);
  }

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

  .detail-definitions {
    grid-template-columns: 1fr;
  }

  .source-page-navigation {
    grid-template-columns: 1fr 1fr;
  }

  .source-page-jump {
    grid-column: 1 / -1;
    grid-row: 1;
    justify-self: center;
  }

  .bench-controls {
    padding-right: 0;
    border-right: 0;
  }

  .drawing-board {
    min-height: 390px;
    border-top: 1px solid var(--rule-strong);
  }

  .result-register {
    grid-template-columns: 1fr;
  }

  .blocking-issue {
    grid-template-columns: 70px 1fr;
  }

  .blocking-issue__page {
    grid-column: 2;
  }

  .audit-summary {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .audit-provenance {
    grid-column: auto;
    grid-template-columns: 1fr;
  }

  .atlas-footer {
    display: block;
  }

  .atlas-footer p + p {
    margin-top: 9px;
  }
}

@media (max-width: 480px) {
  .atlas-theme-toggle span {
    display: none;
  }

  .atlas-title h1 {
    font-size: 52px;
  }

  .coverage-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .evidence-record button,
  .evidence-record .record-link {
    grid-template-columns: 62px minmax(0, 1fr);
  }

  .source-page-record__link {
    grid-template-areas:
      "index name"
      "index section" !important;
    grid-template-columns: 52px minmax(0, 1fr) !important;
  }

  .source-page-record__link .record-meta {
    display: none;
  }

  .record-source {
    display: none;
  }

  .detail-grid {
    grid-template-columns: 1fr;
  }

  .detail-source-list {
    grid-column: auto;
  }

  .related-record-list {
    grid-template-columns: 1fr;
  }

  .source-page-navigation {
    gap: 8px;
  }

  .source-page-jump {
    width: 100%;
    grid-template-columns: 1fr 70px auto;
  }
}

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