:root {
  color-scheme: light;
  --paper: oklch(0.974 0.008 78);
  --paper-deep: oklch(0.944 0.011 74);
  --ink: oklch(0.245 0.018 54);
  --ink-soft: oklch(0.46 0.018 58);
  --rule: oklch(0.835 0.018 70);
  --rule-strong: oklch(0.69 0.025 66);
  --accent: oklch(0.43 0.105 42);
  --accent-soft: oklch(0.91 0.035 50);
  --blue: oklch(0.47 0.085 236);
  --blue-soft: oklch(0.91 0.025 236);
  --green: oklch(0.43 0.065 150);
  --green-soft: oklch(0.91 0.025 150);
  --focus: oklch(0.58 0.15 250);
  --danger: oklch(0.48 0.12 25);
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --shadow: 0 14px 40px oklch(0.31 0.02 50 / 0.1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.45;
}

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

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 8px;
  left: 8px;
  padding: 8px 12px;
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }

.masthead {
  position: sticky;
  z-index: 30;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 46px;
  padding: 0 20px;
  border-bottom: 1px solid var(--ink);
  background: oklch(0.974 0.008 78 / 0.96);
}

.product-mark, .masthead-actions { display: flex; align-items: center; gap: 10px; }
.brand { font-size: 12px; font-weight: 800; letter-spacing: 0.16em; }
.slash { color: var(--accent); font-weight: 800; }
.section-name { color: var(--ink-soft); font-size: 11px; font-weight: 700; letter-spacing: 0.12em; }
.masthead-actions { color: var(--ink-soft); font-size: 12px; }

.text-button, .quiet-button, .icon-button {
  border: 0;
  background: none;
  cursor: pointer;
}
.text-button { padding: 4px 0; border-bottom: 1px solid var(--rule-strong); text-decoration: none; }
.text-button:hover { color: var(--accent); border-color: var(--accent); }
.quiet-button { padding: 5px 7px; color: var(--accent); font-size: 12px; }
.quiet-button:hover { background: var(--accent-soft); }
.icon-button { width: 30px; height: 30px; font-size: 20px; }

.method-note {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto;
  gap: 28px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--rule-strong);
  background: var(--accent-soft);
  color: oklch(0.31 0.04 44);
  font-size: 12px;
}
.method-note[hidden] { display: none; }
.method-note strong { display: block; margin-bottom: 2px; font-size: 11px; letter-spacing: 0.05em; text-transform: uppercase; }

.ledger {
  display: grid;
  grid-template-columns: minmax(320px, 1.2fr) minmax(620px, 2fr);
  min-height: 150px;
  border-bottom: 1px solid var(--ink);
}

.ledger-heading { padding: 25px 28px 24px 20px; }
.eyebrow {
  margin: 0 0 5px;
  color: var(--accent);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 7px; font-size: 28px; line-height: 1.05; letter-spacing: -0.025em; }
h2 { margin-bottom: 4px; font-size: 18px; line-height: 1.15; letter-spacing: -0.015em; }
h3 { margin-bottom: 8px; font-size: 12px; }
.ledger-heading > p:last-child { max-width: 62ch; margin-bottom: 0; color: var(--ink-soft); }

.ledger-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 0;
  border-left: 1px solid var(--rule);
}
.ledger-metrics div {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px 18px;
  border-left: 1px solid var(--rule);
}
.ledger-metrics div:first-child { border-left: 0; }
.ledger-metrics dt { order: 2; margin-top: 7px; color: var(--ink-soft); font-size: 10px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
.ledger-metrics dd { margin: 0; font-size: 21px; font-weight: 720; letter-spacing: -0.025em; font-variant-numeric: tabular-nums; }

.workspace {
  display: grid;
  grid-template-columns: 270px minmax(390px, 0.8fr) minmax(480px, 1.2fr);
  min-height: calc(100vh - 196px);
}

.filter-pane, .register-pane, .detail-pane { min-width: 0; }
.filter-pane {
  padding: 18px 16px 32px 20px;
  border-right: 1px solid var(--ink);
  background: var(--paper-deep);
}
.pane-heading, .register-toolbar { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.pane-heading { margin-bottom: 14px; }
.pane-heading h2 { margin-bottom: 0; }

.field { display: block; margin-bottom: 12px; }
.field > span, .check-group legend { display: block; margin-bottom: 4px; color: var(--ink-soft); font-size: 10px; font-weight: 760; letter-spacing: 0.07em; text-transform: uppercase; }
.field input, .field select {
  width: 100%;
  min-height: 34px;
  padding: 6px 9px;
  border: 1px solid var(--rule-strong);
  border-radius: 2px;
  background: var(--paper);
  color: var(--ink);
}
.field input:hover, .field select:hover { border-color: var(--ink-soft); }
.search-field { position: relative; }
.search-field input { padding-right: 36px; }
kbd {
  position: absolute;
  right: 8px;
  bottom: 7px;
  padding: 1px 6px;
  border: 1px solid var(--rule);
  background: var(--paper-deep);
  color: var(--ink-soft);
  font: 10px var(--mono);
}
.field-pair { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 8px; }

.check-group { margin: 15px 0 20px; padding: 0; border: 0; }
.check-group label { display: flex; align-items: center; gap: 8px; margin: 7px 0; cursor: pointer; }
.check-group input { width: 15px; height: 15px; accent-color: var(--accent); }

.scope-key { padding-top: 15px; border-top: 1px solid var(--rule); }
.scope-key ul { margin: 0; padding: 0; list-style: none; }
.scope-key li { display: grid; grid-template-columns: 60px 1fr; align-items: start; gap: 6px; margin: 9px 0; color: var(--ink-soft); font-size: 11px; }
.code-chip {
  display: inline-flex;
  justify-content: center;
  padding: 2px 5px;
  border-radius: 2px;
  font: 700 10px var(--mono);
  color: var(--accent);
  background: var(--accent-soft);
}
.code-chip.collection { color: var(--blue); background: var(--blue-soft); }
.code-chip.sculpture { color: var(--green); background: var(--green-soft); }

.register-pane { border-right: 1px solid var(--ink); }
.register-toolbar { min-height: 70px; padding: 15px 16px; border-bottom: 1px solid var(--rule-strong); }
.register-toolbar p:last-child { margin: 20px 0 0; color: var(--ink-soft); font-size: 11px; font-variant-numeric: tabular-nums; }
.register-columns {
  display: grid;
  grid-template-columns: 1.2fr 1fr auto;
  gap: 12px;
  padding: 7px 14px;
  border-bottom: 1px solid var(--rule);
  color: var(--ink-soft);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}
.bill-list { min-height: 400px; }
.bill-row {
  position: relative;
  display: grid;
  grid-template-columns: 1.2fr 1fr auto;
  gap: 12px;
  width: 100%;
  min-height: 82px;
  padding: 12px 14px;
  border: 0;
  border-bottom: 1px solid var(--rule);
  background: transparent;
  text-align: left;
  cursor: pointer;
}
.bill-row:hover { background: oklch(0.955 0.015 64); }
.bill-row[aria-selected="true"] { background: var(--accent-soft); }
.bill-row[aria-selected="true"]::after {
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: var(--accent);
  content: "";
}
.route-date { font-size: 11px; font-weight: 760; }
.route-line { margin-top: 4px; font-size: 12px; line-height: 1.25; }
.route-arrow { padding: 0 3px; color: var(--accent); }
.bol-reference { margin-top: 6px; color: var(--ink-soft); font: 9px var(--mono); }
.party-snippet { overflow: hidden; color: var(--ink-soft); font-size: 11px; line-height: 1.35; text-overflow: ellipsis; }
.code-line { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 7px; }
.value-cell { min-width: 76px; text-align: right; font-size: 12px; font-weight: 740; font-variant-numeric: tabular-nums; }
.value-cell small { display: block; margin-top: 6px; color: var(--danger); font-size: 9px; font-weight: 650; }
.no-value { color: var(--ink-soft); font-weight: 500; }
.empty-list { padding: 38px 20px; color: var(--ink-soft); text-align: center; }
.load-more { display: block; width: calc(100% - 28px); margin: 14px; padding: 9px; border: 1px solid var(--rule-strong); background: transparent; cursor: pointer; }
.load-more:hover { background: var(--paper-deep); }

.detail-pane {
  position: sticky;
  top: 46px;
  align-self: start;
  height: calc(100vh - 46px);
  overflow: auto;
  background: oklch(0.985 0.006 78);
}
.empty-detail { max-width: 460px; padding: 42px 34px; }
.empty-detail p:last-child { color: var(--ink-soft); }
.detail-loading { padding: 34px; }
.skeleton { height: 11px; margin: 9px 0; background: var(--paper-deep); animation: pulse 1.4s ease-in-out infinite alternate; }
.skeleton.short { width: 42%; }
@keyframes pulse { to { opacity: 0.45; } }

.detail-header { padding: 22px 24px 18px; border-bottom: 1px solid var(--ink); }
.detail-title-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 14px; }
.detail-title-row h2 { font: 700 15px var(--mono); letter-spacing: -0.02em; }
.copy-button { padding: 5px 8px; border: 1px solid var(--rule-strong); background: transparent; font-size: 11px; cursor: pointer; }
.copy-button:hover { background: var(--paper-deep); }
.detail-route { margin: 12px 0 0; font-size: 17px; font-weight: 680; line-height: 1.2; }
.detail-subline { display: flex; flex-wrap: wrap; gap: 6px 14px; margin-top: 8px; color: var(--ink-soft); font-size: 11px; }

.fact-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-bottom: 1px solid var(--rule-strong); }
.fact-grid div { min-width: 0; padding: 11px 12px; border-right: 1px solid var(--rule); }
.fact-grid div:last-child { border-right: 0; }
.fact-grid dt { color: var(--ink-soft); font-size: 9px; font-weight: 750; letter-spacing: 0.07em; text-transform: uppercase; }
.fact-grid dd { margin: 4px 0 0; overflow-wrap: anywhere; font-size: 12px; font-weight: 640; }

.notice {
  display: flex;
  gap: 9px;
  margin: 14px 18px 0;
  padding: 10px 11px;
  border: 1px solid var(--rule-strong);
  background: var(--paper-deep);
  color: var(--ink-soft);
  font-size: 11px;
}
.notice strong { color: var(--ink); }
.notice.replay { border-color: oklch(0.73 0.07 48); background: var(--accent-soft); }

.detail-section { padding: 18px 20px; border-bottom: 1px solid var(--rule-strong); }
.section-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 11px; }
.section-heading h3 { margin: 0; font-size: 13px; }
.section-heading span { color: var(--ink-soft); font-size: 10px; }

.party-list { display: grid; gap: 12px; }
.party { display: grid; grid-template-columns: 86px 1fr; gap: 10px; }
.party-role { color: var(--accent); font-size: 9px; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; }
.party-name { margin-bottom: 2px; font-weight: 700; }
.party-address { color: var(--ink-soft); font-size: 11px; overflow-wrap: anywhere; }

.cargo-item { margin-top: 15px; padding-top: 15px; border-top: 1px solid var(--rule); }
.cargo-item:first-of-type { margin-top: 0; padding-top: 0; border-top: 0; }
.cargo-meta { display: flex; flex-wrap: wrap; gap: 5px 12px; margin-bottom: 7px; color: var(--ink-soft); font: 10px var(--mono); }
.cargo-description { margin-bottom: 10px; font-size: 12px; line-height: 1.5; overflow-wrap: anywhere; }
details.raw-text { margin-bottom: 10px; }
details.raw-text summary { color: var(--ink-soft); font-size: 10px; cursor: pointer; }
details.raw-text p { margin: 6px 0 0; padding: 8px; background: var(--paper-deep); color: var(--ink-soft); font: 10px/1.45 var(--mono); overflow-wrap: anywhere; }

.tariff-list { border-top: 1px solid var(--rule); }
.tariff-row {
  display: grid;
  grid-template-columns: minmax(92px, 0.6fr) minmax(150px, 1.5fr) minmax(78px, 0.55fr);
  gap: 9px;
  padding: 9px 0;
  border-bottom: 1px solid var(--rule);
  font-size: 11px;
}
.tariff-row.antiquity { background: oklch(0.965 0.014 65); box-shadow: 8px 0 0 oklch(0.965 0.014 65), -8px 0 0 oklch(0.965 0.014 65); }
.tariff-code { font: 700 10px var(--mono); }
.tariff-code small { display: block; margin-top: 3px; color: var(--ink-soft); font: 9px var(--sans); }
.tariff-description { line-height: 1.35; }
.tariff-description small { display: block; margin-top: 3px; color: var(--ink-soft); }
.tariff-value { text-align: right; font-variant-numeric: tabular-nums; }
.replay-badge { display: inline-flex; margin-top: 4px; padding: 1px 4px; border: 1px solid oklch(0.7 0.07 48); color: var(--danger); font-size: 8px; font-weight: 750; }

.container-table { width: 100%; border-collapse: collapse; font-size: 10px; }
.container-table th { padding: 6px; border-bottom: 1px solid var(--rule-strong); color: var(--ink-soft); font-size: 8px; letter-spacing: 0.07em; text-align: left; text-transform: uppercase; }
.container-table td { padding: 7px 6px; border-bottom: 1px solid var(--rule); vertical-align: top; }
.container-table td:first-child { font-family: var(--mono); }

.downloads {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(600px, 2fr);
  gap: 40px;
  padding: 34px 20px 44px;
  border-top: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
}
.downloads > div:first-child { max-width: 60ch; }
.downloads p { color: oklch(0.8 0.015 74); }
.downloads .eyebrow { color: oklch(0.77 0.08 48); }
.downloads code { font-family: var(--mono); }
.download-list { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid oklch(0.45 0.015 58); border-left: 1px solid oklch(0.45 0.015 58); }
.download-list a { min-height: 88px; padding: 14px; border-right: 1px solid oklch(0.45 0.015 58); border-bottom: 1px solid oklch(0.45 0.015 58); text-decoration: none; }
.download-list a:hover { background: oklch(0.3 0.025 50); }
.download-list span { display: block; font-weight: 700; }
.download-list small { display: block; margin-top: 5px; color: oklch(0.72 0.015 70); }

.toast {
  position: fixed;
  z-index: 50;
  right: 18px;
  bottom: 18px;
  padding: 9px 12px;
  background: var(--ink);
  color: var(--paper);
  box-shadow: var(--shadow);
  font-size: 12px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 160ms ease-out, transform 160ms ease-out;
}
.toast.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1180px) {
  .ledger { grid-template-columns: 1fr; }
  .ledger-metrics { border-top: 1px solid var(--rule); border-left: 0; }
  .workspace { grid-template-columns: 245px minmax(380px, 1fr); }
  .detail-pane {
    position: fixed;
    z-index: 35;
    inset: 46px 0 0 auto;
    width: min(620px, 92vw);
    box-shadow: var(--shadow);
    transform: translateX(102%);
    transition: transform 180ms cubic-bezier(0.16, 1, 0.3, 1);
  }
  .detail-pane.open { transform: translateX(0); }
  .detail-pane.open::before { content: ""; }
}

@media (max-width: 760px) {
  .masthead { padding: 0 12px; }
  .section-name, #corpus-status { display: none; }
  .method-note { grid-template-columns: 1fr auto; }
  .method-note > div:nth-child(2) { grid-column: 1; }
  .ledger-heading { padding: 20px 14px; }
  h1 { font-size: 23px; }
  .ledger-metrics { grid-template-columns: repeat(2, 1fr); }
  .ledger-metrics div { min-height: 86px; padding: 14px; border-bottom: 1px solid var(--rule); }
  .workspace { display: block; }
  .filter-pane { border-right: 0; border-bottom: 1px solid var(--ink); padding: 16px 14px; }
  .scope-key { display: none; }
  .register-pane { border-right: 0; }
  .register-columns { display: none; }
  .bill-row { grid-template-columns: 1fr auto; }
  .bill-row > div:nth-child(2) { grid-column: 1; }
  .value-cell { grid-row: 1 / span 2; grid-column: 2; }
  .detail-pane { width: 100vw; }
  .fact-grid { grid-template-columns: repeat(2, 1fr); }
  .downloads { grid-template-columns: 1fr; padding: 28px 14px; }
  .download-list { grid-template-columns: repeat(2, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}