:root {
  --paper: #eef1e8;
  --paper-deep: #dfe7dc;
  --paper-light: #fbfbf5;
  --ink: #141713;
  --ink-soft: #596056;
  --line: #c8d0c3;
  --line-dark: #879482;
  --teal: #0f6f67;
  --teal-dark: #0a4f4a;
  --teal-light: #dceee9;
  --blue: #274f73;
  --blue-light: #dce8f0;
  --red: #a83228;
  --red-light: #f5dfdb;
  --brass: #9b6818;
  --brass-light: #f2e6c9;
  --slate: #334155;
  --white: #ffffff;
  --shadow: 0 22px 70px rgba(46, 37, 24, 0.11);
  --radius: 8px;
  --font-display: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --font-sans: "Avenir Next", "Gill Sans", "Trebuchet MS", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(rgba(20, 23, 19, 0.032) 1px, transparent 1px),
    var(--paper);
  background-size: 100% 28px;
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

button,
input,
select {
  font: inherit;
}

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

a {
  color: inherit;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(15, 111, 103, 0.34);
  outline-offset: 3px;
}

.skip-link {
  background: var(--ink);
  color: var(--white);
  left: 16px;
  padding: 10px 14px;
  position: fixed;
  top: -80px;
  transition: top 160ms ease;
  z-index: 100;
}

.skip-link:focus {
  top: 12px;
}

.site-header {
  align-items: center;
  backdrop-filter: blur(18px);
  background: rgba(238, 241, 232, 0.9);
  border-bottom: 1px solid rgba(89, 96, 86, 0.18);
  box-shadow: 0 8px 30px rgba(20, 23, 19, 0.045);
  display: grid;
  gap: 32px;
  grid-template-columns: 1fr auto 1fr;
  min-height: 78px;
  padding: 0 clamp(22px, 5vw, 76px);
  position: sticky;
  top: 0;
  z-index: 30;
}

.brand {
  align-items: center;
  display: inline-flex;
  gap: 12px;
  justify-self: start;
  text-decoration: none;
}

.brand-mark {
  align-items: center;
  background: var(--ink);
  border-radius: 4px;
  color: var(--paper-light);
  display: inline-flex;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  height: 38px;
  justify-content: center;
  letter-spacing: -0.04em;
  width: 38px;
}

.brand > span:last-child {
  display: flex;
  flex-direction: column;
  line-height: 1.12;
}

.brand strong {
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: -0.02em;
}

.brand small {
  color: var(--ink-soft);
  font-size: 10px;
  letter-spacing: 0.08em;
  margin-top: 3px;
  text-transform: uppercase;
}

.site-header nav {
  display: flex;
  gap: 30px;
}

.site-header nav a {
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 650;
  text-decoration: none;
}

.site-header nav a:hover {
  color: var(--teal-dark);
}

.header-action {
  border: 1px solid var(--ink);
  border-radius: 4px;
  font-size: 12px;
  font-weight: 750;
  justify-self: end;
  letter-spacing: 0.03em;
  padding: 9px 14px;
  text-decoration: none;
  text-transform: uppercase;
}

.header-action:hover {
  background: var(--ink);
  color: var(--paper-light);
}

.hero {
  align-items: center;
  display: grid;
  gap: clamp(44px, 6vw, 88px);
  grid-template-columns: minmax(0, 1.02fr) minmax(420px, 0.98fr);
  margin: 0 auto;
  max-width: 1450px;
  min-height: auto;
  padding: clamp(56px, 6vw, 88px) clamp(24px, 6vw, 88px) 68px;
}

.hero-copy {
  max-width: 720px;
}

.eyebrow,
.section-index,
.panel-kicker,
.document-kicker,
.dialog-kicker,
.rail-label {
  color: var(--teal-dark);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.eyebrow {
  align-items: center;
  display: inline-flex;
  gap: 9px;
}

.live-dot {
  background: var(--teal);
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(15, 111, 103, 0.12);
  height: 7px;
  width: 7px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(50px, 5.1vw, 78px);
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 1;
  margin: 22px 0 24px;
}

.hero-lede {
  color: #49443d;
  font-size: clamp(17px, 1.35vw, 21px);
  line-height: 1.5;
  margin: 0;
  max-width: 660px;
}

.hero-actions,
.source-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  align-items: center;
  border: 1px solid transparent;
  border-radius: 5px;
  cursor: pointer;
  display: inline-flex;
  font-size: 13px;
  font-weight: 750;
  justify-content: center;
  min-height: 44px;
  padding: 11px 17px;
  text-decoration: none;
  transition:
    background 140ms ease,
    border-color 140ms ease,
    color 140ms ease,
    transform 140ms ease;
}

.button:hover:not(:disabled) {
  transform: translateY(-1px);
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.button-primary {
  background: var(--teal-dark);
  color: var(--white);
}

.button-primary:hover:not(:disabled) {
  background: var(--teal);
}

.button-secondary {
  background: var(--paper-light);
  border-color: var(--line-dark);
  color: var(--ink);
}

.button-secondary:hover:not(:disabled),
.button-quiet:hover:not(:disabled) {
  border-color: var(--teal);
  color: var(--teal-dark);
}

.button-quiet {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}

.button-inverse {
  background: var(--paper-light);
  color: var(--ink);
}

.button-inverse:hover {
  background: var(--white);
}

.button-danger {
  background: var(--red);
  color: var(--white);
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.hero-proof li {
  align-items: center;
  color: var(--ink-soft);
  display: flex;
  font-size: 12px;
  font-weight: 650;
  gap: 7px;
}

.hero-proof li span {
  color: var(--teal);
}

.hero-ledger {
  background: var(--paper-light);
  border: 1px solid var(--line-dark);
  box-shadow: var(--shadow);
  padding: 22px;
  position: relative;
  transform: rotate(0.45deg);
}

.hero-ledger::before {
  border: 1px solid var(--line);
  content: "";
  inset: 10px -11px -12px 12px;
  pointer-events: none;
  position: absolute;
  z-index: -1;
}

.ledger-toolbar,
.panel-heading,
.subsection-heading {
  align-items: flex-start;
  display: flex;
  justify-content: space-between;
}

.ledger-toolbar > div {
  display: flex;
  flex-direction: column;
}

.ledger-toolbar strong {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 500;
}

.stamp {
  border: 1px solid currentColor;
  border-radius: 3px;
  display: inline-flex;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.08em;
  padding: 5px 8px;
  text-transform: uppercase;
  transform: rotate(-1.5deg);
}

.stamp-ready {
  color: var(--teal-dark);
}

.stamp-review {
  color: var(--brass);
}

.ledger-tabs {
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 24px;
  margin-top: 26px;
}

.ledger-tabs span {
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 750;
  padding: 8px 0;
}

.ledger-tabs .active {
  border-bottom: 2px solid var(--teal-dark);
  color: var(--teal-dark);
}

.preview-metrics {
  display: grid;
  gap: 1px;
  grid-template-columns: 1fr 1fr;
  margin: 18px 0;
}

.preview-metrics > div {
  background: #ede7dc;
  display: flex;
  flex-direction: column;
  padding: 16px;
}

.preview-metrics small,
.metric-strip small,
.export-format {
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.preview-metrics strong {
  font-family: var(--font-mono);
  font-size: 23px;
  margin: 4px 0 1px;
}

.preview-metrics span {
  color: var(--ink-soft);
  font-size: 11px;
}

.ledger-sheet {
  border: 1px solid var(--line);
}

.sheet-row {
  align-items: center;
  border-bottom: 1px solid var(--line);
  display: grid;
  font-family: var(--font-mono);
  font-size: 10px;
  gap: 10px;
  grid-template-columns: 1.2fr 1fr 0.8fr;
  padding: 10px 12px;
}

.sheet-row:last-child {
  border-bottom: 0;
}

.sheet-head {
  background: #e9e1d5;
  color: var(--ink-soft);
  font-weight: 750;
  text-transform: uppercase;
}

.status-ready {
  color: var(--teal-dark);
}

.status-warn {
  color: var(--red);
}

.status-review {
  color: var(--brass);
}

.privacy-seal {
  align-items: center;
  border-top: 1px solid var(--line);
  display: flex;
  gap: 12px;
  margin-top: 20px;
  padding-top: 17px;
}

.seal-icon {
  align-items: center;
  background: var(--teal-dark);
  border-radius: 50%;
  color: var(--white);
  display: inline-flex;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
  height: 31px;
  justify-content: center;
  width: 31px;
}

.privacy-seal > div {
  display: flex;
  flex-direction: column;
}

.privacy-seal strong {
  font-size: 11px;
}

.privacy-seal span:last-child {
  color: var(--ink-soft);
  font-size: 10px;
}

.principles {
  background: var(--ink);
  color: var(--paper-light);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0 auto;
  max-width: 1600px;
  padding: 0 clamp(24px, 5vw, 76px);
}

.principles > div {
  border-left: 1px solid rgba(255, 255, 255, 0.16);
  padding: 34px clamp(24px, 3vw, 46px);
}

.principles > div:last-child {
  border-right: 1px solid rgba(255, 255, 255, 0.16);
}

.principle-number {
  color: #8fd1c6;
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  margin-bottom: 8px;
}

.principles strong {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 500;
}

.principles p {
  color: #bfb8ad;
  font-size: 12px;
  margin: 4px 0 0;
}

.workspace-section,
.model-section {
  margin: 0 auto;
  max-width: 1600px;
  padding: 130px clamp(24px, 5vw, 76px);
}

.workspace-section {
  scroll-margin-top: 88px;
}

.section-heading {
  align-items: end;
  display: grid;
  gap: 60px;
  grid-template-columns: minmax(0, 1.1fr) minmax(330px, 0.6fr);
  margin-bottom: 56px;
}

.section-heading h2,
.opensource-section h2 {
  font-family: var(--font-display);
  font-size: clamp(42px, 5vw, 72px);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1.04;
  margin: 10px 0 0;
  max-width: 900px;
}

.section-heading > p {
  color: var(--ink-soft);
  font-size: 16px;
  margin: 0 0 5px;
}

.workspace-shell {
  background: var(--paper-light);
  border: 1px solid var(--line-dark);
  box-shadow: 0 30px 90px rgba(54, 43, 28, 0.09);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  min-height: 760px;
  overflow: hidden;
}

.workspace-commandbar {
  align-items: center;
  background:
    linear-gradient(90deg, rgba(15, 111, 103, 0.1), transparent 38%),
    var(--ink);
  color: var(--paper-light);
  display: flex;
  gap: 24px;
  grid-column: 1 / -1;
  justify-content: space-between;
  min-width: 0;
  padding: 16px clamp(18px, 3vw, 28px);
}

.workspace-commandbar .panel-kicker {
  color: #9ed4c8;
}

.workspace-commandbar strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(18px, 1.7vw, 25px);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin-top: 3px;
}

.workspace-command-actions {
  align-items: center;
  display: flex;
  flex: 0 0 auto;
  gap: 9px;
}

.workspace-command-actions .button-secondary {
  background: var(--paper-light);
  border-color: transparent;
}

.workspace-command-actions .button-quiet {
  border-color: rgba(251, 251, 245, 0.22);
  color: var(--paper-light);
}

.workspace-command-actions .button-audit {
  background: rgba(220, 238, 233, 0.12);
  border-color: rgba(158, 212, 200, 0.45);
  color: #d7f0ea;
}

.audit-trust-dot {
  background: #6bd0bc;
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(107, 208, 188, 0.13);
  height: 7px;
  margin-right: 2px;
  width: 7px;
}

.step-rail {
  align-items: stretch;
  background: var(--paper-deep);
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 10px;
  padding: 0 14px;
}

.rail-label {
  display: none;
}

.step-rail ol {
  display: flex;
  flex: 1 1 auto;
  flex-direction: row;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
}

.step-rail ol::before {
  display: none;
}

.step-rail li {
  flex: 1 1 0;
}

.step-button {
  align-items: center;
  background: transparent;
  border: 0;
  border-bottom: 3px solid transparent;
  color: var(--ink-soft);
  cursor: pointer;
  display: grid;
  gap: 11px;
  grid-template-columns: 27px 1fr;
  min-height: 72px;
  padding: 12px 14px;
  position: relative;
  text-align: left;
  width: 100%;
}

.step-button > span:first-child {
  align-items: center;
  background: var(--paper-deep);
  border: 1px solid var(--line-dark);
  border-radius: 50%;
  display: inline-flex;
  font-family: var(--font-mono);
  font-size: 10px;
  height: 25px;
  justify-content: center;
  width: 25px;
}

.step-button > span:last-child {
  display: flex;
  flex-direction: column;
}

.step-button strong {
  font-size: 12px;
}

.step-button small {
  font-size: 10px;
  margin-top: 1px;
}

.step-button.is-active {
  background: rgba(255, 255, 255, 0.58);
  border-bottom-color: var(--teal-dark);
  color: var(--ink);
}

.step-button.is-active > span:first-child {
  background: var(--teal-dark);
  border-color: var(--teal-dark);
  color: var(--white);
}

.step-button.is-complete > span:first-child {
  background: var(--teal-light);
  border-color: var(--teal);
  color: var(--teal-dark);
}

.clear-button {
  align-self: stretch;
  background: transparent;
  border: 0;
  border-left: 1px solid var(--line);
  color: var(--ink-soft);
  cursor: pointer;
  font-size: 10px;
  margin: 0;
  min-width: 108px;
  padding: 12px;
  text-align: center;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.workspace-main {
  justify-self: center;
  max-width: 1180px;
  min-width: 0;
  padding: clamp(28px, 3.5vw, 48px);
  width: 100%;
}

.step-panel[hidden] {
  display: none;
}

.panel-heading h3 {
  font-family: var(--font-display);
  font-size: clamp(31px, 3.1vw, 46px);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.08;
  margin: 6px 0 0;
}

.local-badge {
  background: var(--teal-light);
  border-radius: 999px;
  color: var(--teal-dark);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 750;
  letter-spacing: 0.08em;
  padding: 6px 9px;
  text-transform: uppercase;
}

.panel-intro {
  color: var(--ink-soft);
  font-size: 14px;
  margin: 18px 0 28px;
  max-width: 760px;
}

.drop-zone {
  align-items: center;
  background:
    linear-gradient(90deg, rgba(15, 111, 103, 0.045) 1px, transparent 1px),
    linear-gradient(rgba(15, 111, 103, 0.045) 1px, transparent 1px),
    #f7f3eb;
  background-size: 24px 24px;
  border: 1.5px dashed var(--line-dark);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  min-height: 255px;
  justify-content: center;
  padding: 34px;
  text-align: center;
  transition:
    background 140ms ease,
    border-color 140ms ease;
}

.drop-zone:hover,
.drop-zone.is-dragging {
  background-color: var(--teal-light);
  border-color: var(--teal);
}

.drop-zone input {
  height: 1px;
  overflow: hidden;
  position: absolute;
  width: 1px;
  clip: rect(0, 0, 0, 0);
}

.drop-icon {
  align-items: center;
  border: 1px solid var(--teal);
  border-radius: 4px;
  color: var(--teal-dark);
  display: inline-flex;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
  height: 42px;
  justify-content: center;
  margin-bottom: 16px;
  position: relative;
  width: 48px;
}

.drop-icon::before {
  background: var(--paper-light);
  border-bottom: 1px solid var(--teal);
  border-left: 1px solid var(--teal);
  content: "";
  height: 9px;
  position: absolute;
  right: -1px;
  top: -1px;
  width: 9px;
}

.drop-zone strong {
  font-family: var(--font-display);
  font-size: 23px;
  font-weight: 500;
}

.drop-zone > span:not(.drop-icon, .drop-privacy) {
  color: var(--ink-soft);
  font-size: 12px;
  margin-top: 4px;
}

.drop-privacy {
  color: var(--teal-dark);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-top: 18px;
  text-transform: uppercase;
}

.import-actions,
.panel-actions {
  align-items: center;
  display: flex;
  gap: 10px;
  margin-top: 18px;
}

.panel-actions {
  border-top: 1px solid var(--line);
  justify-content: space-between;
  padding-top: 22px;
}

.file-list {
  border: 1px solid var(--line);
  margin-top: 18px;
}

.file-item {
  align-items: center;
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr auto;
  padding: 11px 13px;
}

.file-item:last-child {
  border-bottom: 0;
}

.file-item div {
  display: flex;
  min-width: 0;
}

.file-item strong {
  font-family: var(--font-mono);
  font-size: 10px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-item span {
  color: var(--ink-soft);
  font-size: 10px;
  margin-left: 10px;
}

.file-item button {
  background: transparent;
  border: 0;
  color: var(--red);
  cursor: pointer;
  font-size: 10px;
}

.inline-status {
  color: var(--ink-soft);
  font-size: 11px;
  margin-top: 14px;
  min-height: 18px;
}

.inline-status.is-success {
  color: var(--teal-dark);
}

.inline-status.is-error {
  color: var(--red);
}

.helper-disclosure {
  border-top: 1px solid var(--line);
  margin-top: 25px;
  padding-top: 17px;
}

.helper-disclosure summary {
  color: var(--ink-soft);
  cursor: pointer;
  font-size: 11px;
  font-weight: 700;
}

.helper-disclosure ol {
  color: var(--ink-soft);
  font-size: 11px;
  margin-bottom: 0;
}

.form-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr 1fr;
}

.form-grid label {
  display: flex;
  flex-direction: column;
}

.form-grid label > span,
.choice-group legend {
  font-size: 11px;
  font-weight: 750;
  margin-bottom: 7px;
}

.form-grid select {
  appearance: none;
  background:
    linear-gradient(45deg, transparent 50%, var(--ink-soft) 50%) calc(100% - 17px) 52% / 5px 5px
      no-repeat,
    linear-gradient(135deg, var(--ink-soft) 50%, transparent 50%) calc(100% - 12px) 52% / 5px 5px
      no-repeat,
    var(--paper-light);
  border: 1px solid var(--line-dark);
  border-radius: 4px;
  color: var(--ink);
  min-height: 44px;
  padding: 10px 34px 10px 12px;
}

.form-grid small {
  color: var(--ink-soft);
  font-size: 9px;
  margin-top: 5px;
}

.reference-section {
  border-top: 1px solid var(--line);
  margin-top: 30px;
  padding-top: 24px;
}

.reference-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 16px;
}

.reference-card {
  background: #eee8dc;
  border: 1px solid var(--line);
  padding: 16px;
}

.reference-provider {
  color: var(--teal-dark);
  display: block;
  font-family: var(--font-mono);
  font-size: 8px;
  font-weight: 750;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.reference-card h5,
.conversion-date-summary h5 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 500;
  margin: 7px 0;
}

.reference-card p,
.reference-card small,
.conversion-date-summary p {
  color: var(--ink-soft);
  font-size: 9px;
  margin: 0;
}

.reference-links {
  display: flex;
  flex-wrap: wrap;
  gap: 7px 14px;
  margin-top: 13px;
}

.reference-links a,
.rate-result a,
.reference-table a,
.reference-table-note a {
  color: var(--teal-dark);
  font-size: 9px;
  font-weight: 700;
  text-underline-offset: 3px;
}

.reference-actions {
  align-items: center;
  display: flex;
  gap: 12px;
  justify-content: space-between;
  margin-top: 14px;
}

.compact-upload {
  align-items: flex-start;
  border: 1px dashed var(--line-dark);
  cursor: pointer;
  display: flex;
  flex: 1;
  flex-direction: column;
  font-size: 10px;
  font-weight: 700;
  min-height: 44px;
  padding: 9px 12px;
}

.compact-upload input {
  color: var(--ink-soft);
  font-size: 9px;
  margin-top: 5px;
  max-width: 100%;
}

.conversion-date-summary {
  align-items: end;
  border: 1px solid var(--line);
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 0.45fr) minmax(360px, 1fr);
  margin-top: 18px;
  padding: 16px;
}

.rate-result {
  background: var(--teal-light);
  min-height: 44px;
  overflow-x: auto;
  padding: 11px 13px;
}

.rate-result p {
  color: var(--ink);
  font-size: 10px;
  margin: 0;
}

.rate-result ul {
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 9px;
  margin: 8px 0 0;
  padding-left: 18px;
}

.conversion-mini-grid {
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(4, minmax(110px, 1fr));
  margin-bottom: 10px;
}

.conversion-mini-grid span {
  background: rgba(255, 255, 255, 0.58);
  color: var(--ink-soft);
  font-size: 9px;
  padding: 9px;
}

.conversion-mini-grid strong {
  color: var(--ink);
  display: block;
  font-family: var(--font-mono);
  font-size: 15px;
}

.table-scroll {
  overflow-x: auto;
}

.reference-table {
  border: 1px solid var(--line);
  margin-top: 14px;
  max-height: 340px;
  overflow: auto;
}

.reference-table caption {
  color: var(--ink-soft);
  font-size: 9px;
  padding: 10px;
  text-align: left;
}

.reference-table-note {
  align-items: center;
  background: var(--teal-light);
  display: grid;
  gap: 6px 14px;
  grid-template-columns: 1fr auto;
  margin-bottom: 12px;
  padding: 12px;
}

.reference-table-note strong,
.reference-table-note span {
  font-size: 10px;
}

.reference-table-note span {
  color: var(--ink-soft);
  grid-column: 1;
}

.reference-table-note a {
  grid-column: 2;
  grid-row: 1 / span 2;
}

.choice-group {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 29px 0 0;
  padding: 23px 0 0;
}

.choice-group legend {
  padding: 0;
}

.choice-group label {
  align-items: flex-start;
  border: 1px solid var(--line);
  cursor: pointer;
  display: flex;
  gap: 11px;
  margin-top: 8px;
  padding: 12px;
}

.choice-group label:has(input:checked) {
  background: var(--teal-light);
  border-color: var(--teal);
}

.choice-group input {
  accent-color: var(--teal-dark);
  margin-top: 3px;
}

.choice-group label span {
  display: flex;
  flex-direction: column;
}

.choice-group strong {
  font-size: 11px;
}

.choice-group small {
  color: var(--ink-soft);
  font-size: 9px;
}

.callout {
  border-left: 3px solid var(--brass);
  margin: 22px 0;
  padding: 12px 15px;
}

.callout-warning {
  background: var(--brass-light);
}

.callout strong {
  font-size: 11px;
}

.callout p {
  color: #6b511e;
  font-size: 10px;
  margin: 3px 0 0;
}

.review-console-bar {
  align-items: center;
  background:
    linear-gradient(90deg, rgba(39, 79, 115, 0.11), transparent 54%),
    var(--paper-light);
  border: 1px solid var(--line);
  border-left: 4px solid var(--blue);
  display: flex;
  gap: 20px;
  justify-content: space-between;
  margin: 0 0 14px;
  padding: 13px 15px;
}

.review-console-bar strong {
  display: block;
  font-size: 13px;
  line-height: 1.3;
  margin-top: 2px;
}

.review-console-bar > span {
  color: var(--blue);
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.review-headline-strip {
  background: transparent;
  border: 0;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 20px;
}

.headline-metric {
  background: var(--paper-light);
  border: 1px solid var(--line);
  border-radius: 5px;
  display: flex;
  flex-direction: column;
  min-height: 120px;
  min-width: 0;
  padding: 14px 15px;
}

.headline-metric:last-child {
  grid-column: span 2;
}

.headline-metric.is-review {
  background:
    linear-gradient(rgba(155, 104, 24, 0.08), rgba(155, 104, 24, 0.08)),
    var(--paper-light);
  box-shadow: inset 0 3px 0 var(--brass);
}

.headline-metric-top {
  align-items: flex-start;
  display: flex;
  gap: 8px;
  justify-content: space-between;
}

.headline-metric small {
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.headline-state {
  background: var(--teal-light);
  border-radius: 999px;
  color: var(--teal-dark);
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 750;
  padding: 3px 6px;
  text-transform: uppercase;
}

.headline-metric.is-review .headline-state {
  background: var(--brass-light);
  color: #6b511e;
}

.headline-metric strong {
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.2;
  margin: 12px 0 7px;
  overflow-wrap: anywhere;
}

.headline-metric .headline-note {
  color: var(--ink-soft);
  font-size: 11px;
  line-height: 1.4;
  margin-top: auto;
}

.metric-strip {
  border: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-bottom: 20px;
}

.metric-strip > div {
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  padding: 13px 14px;
}

.metric-strip > div:last-child {
  border-right: 0;
}

.metric-strip strong {
  font-family: var(--font-mono);
  font-size: 21px;
  margin-top: 3px;
}

.review-tabs {
  background: var(--paper-deep);
  border: 1px solid var(--line);
  display: flex;
  gap: 3px;
  overflow-x: auto;
  padding: 5px;
}

.review-tabs button {
  background: transparent;
  border: 0;
  border-radius: 4px;
  color: var(--ink-soft);
  cursor: pointer;
  flex: 0 0 auto;
  font-size: 11px;
  font-weight: 750;
  min-height: 44px;
  padding: 8px 11px;
}

.review-tabs button[aria-selected="true"] {
  background: var(--paper-light);
  box-shadow: 0 1px 0 rgba(20, 23, 19, 0.08);
  color: var(--teal-dark);
}

.review-tabs button:focus-visible {
  border-radius: 2px;
  outline-offset: -2px;
}

.review-content {
  background: var(--paper-light);
  border: 1px solid var(--line);
  border-top: 0;
  min-height: 220px;
  overflow-x: auto;
  padding: 16px;
}

.review-content .data-table {
  min-width: 1100px;
}

.empty-review {
  align-items: center;
  border: 1px dashed var(--line-dark);
  color: var(--ink-soft);
  display: flex;
  font-size: 12px;
  justify-content: center;
  min-height: 190px;
  padding: 30px;
  text-align: center;
}

.review-summary {
  background: var(--line);
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.summary-block {
  background: var(--paper-light);
  min-height: 96px;
  padding: 14px;
}

.summary-block small {
  color: var(--ink-soft);
  display: block;
  font-family: var(--font-mono);
  font-size: 9px;
  text-transform: uppercase;
}

.summary-block strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 17px;
  margin-top: 4px;
}

.summary-block span {
  color: var(--ink-soft);
  font-size: 9px;
}

.audit-tab-panel {
  display: grid;
  gap: 14px;
  min-width: 0;
}

.audit-note {
  align-items: flex-start;
  background: var(--teal-light);
  border: 1px solid rgba(15, 111, 103, 0.22);
  display: grid;
  gap: 12px;
  grid-template-columns: auto 1fr;
  padding: 15px 17px;
}

.audit-note-mark {
  align-items: center;
  background: var(--paper-light);
  border-radius: 50%;
  color: var(--teal-dark);
  display: inline-flex;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 800;
  height: 24px;
  justify-content: center;
  margin-top: 1px;
  width: 24px;
}

.audit-note h4 {
  color: var(--teal-dark);
  font-size: 13px;
  margin: 0;
}

.audit-note p {
  color: #285f5a;
  font-size: 11px;
  line-height: 1.45;
  margin: 3px 0 0;
}

.audit-section-card {
  border: 1px solid var(--line);
  min-width: 0;
  padding: 17px;
}

.audit-section-heading {
  align-items: flex-end;
  display: flex;
  gap: 18px;
  justify-content: space-between;
  margin-bottom: 13px;
}

.audit-section-heading span {
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.audit-section-heading h5 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 500;
  line-height: 1.2;
  margin: 3px 0 0;
}

.audit-section-heading small {
  color: var(--ink-soft);
  font-size: 10px;
  max-width: 270px;
  text-align: right;
}

.audit-count-grid {
  background: var(--paper-light);
  border-left: 1px solid var(--line);
  border-top: 1px solid var(--line);
  display: grid;
  gap: 0;
  grid-template-columns: repeat(auto-fit, minmax(126px, 1fr));
}

.audit-count-item {
  background: var(--paper-light);
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  min-height: 82px;
  padding: 11px 12px;
}

.audit-count-item > span {
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.audit-count-item strong {
  font-family: var(--font-mono);
  font-size: 18px;
  margin: 4px 0;
}

.audit-count-item small {
  color: var(--ink-soft);
  font-size: 9px;
  line-height: 1.35;
  margin-top: auto;
}

.audit-table-wrap {
  overflow-x: auto;
}

.audit-reconciliation-table {
  border-collapse: collapse;
  font-size: 10px;
  min-width: 720px;
  width: 100%;
}

.audit-reconciliation-table th,
.audit-reconciliation-table td {
  border-bottom: 1px solid var(--line);
  padding: 10px;
  text-align: left;
  vertical-align: top;
}

.audit-reconciliation-table thead th {
  background: #eee8dc;
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.audit-reconciliation-table tbody th {
  font-size: 10px;
}

.audit-reconciliation-table td:nth-child(2),
.audit-reconciliation-table td:nth-child(3) {
  font-family: var(--font-mono);
}

.audit-status,
.audit-severity {
  display: inline-flex;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 750;
  padding: 3px 6px;
  text-transform: uppercase;
}

.audit-status.is-ready,
.audit-severity.is-info {
  background: var(--teal-light);
  color: var(--teal-dark);
}

.audit-status.is-review,
.audit-severity.is-warning {
  background: var(--brass-light);
  color: #6b511e;
}

.audit-severity.is-error {
  background: var(--red-light);
  color: var(--red);
}

.audit-method-list {
  border-top: 1px solid var(--line);
  margin: 0;
}

.audit-method-list > div {
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(105px, 0.25fr) 1fr;
  padding: 10px 0;
}

.audit-method-list dt,
.audit-assumption-grid dt {
  font-size: 10px;
  font-weight: 800;
}

.audit-method-list dd,
.audit-assumption-grid dd {
  color: var(--ink-soft);
  font-size: 10px;
  line-height: 1.45;
  margin: 0;
}

.audit-assumption-grid {
  background: var(--line);
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
}

.audit-assumption-grid > div {
  background: var(--paper-light);
  min-width: 0;
  padding: 11px 12px;
}

.audit-assumption-grid dd {
  margin-top: 3px;
  overflow-wrap: anywhere;
}

.audit-validation-list {
  display: grid;
  gap: 6px;
  list-style: none;
  margin: 13px 0 0;
  padding: 0;
}

.audit-validation-list li {
  align-items: start;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 8px;
  grid-template-columns: auto minmax(115px, 0.35fr) 1fr;
  padding-top: 9px;
}

.audit-validation-list strong {
  font-family: var(--font-mono);
  font-size: 9px;
  overflow-wrap: anywhere;
}

.audit-validation-list li > span:last-child,
.audit-empty-note {
  color: var(--ink-soft);
  font-size: 10px;
  line-height: 1.4;
  margin: 0;
}

.audit-disclosure {
  padding: 0;
}

.audit-disclosure summary {
  align-items: center;
  cursor: pointer;
  display: flex;
  gap: 18px;
  justify-content: space-between;
  list-style: none;
  min-height: 70px;
  padding: 14px 17px;
}

.audit-disclosure summary::-webkit-details-marker {
  display: none;
}

.audit-disclosure summary > span:first-child {
  display: flex;
  flex-direction: column;
}

.audit-disclosure summary small {
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.audit-disclosure summary strong {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 500;
  margin-top: 3px;
}

.audit-disclosure-action {
  color: var(--teal-dark);
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 750;
  text-transform: uppercase;
}

.audit-disclosure-action::after {
  content: " +";
}

.audit-disclosure[open] .audit-disclosure-action::after {
  content: " −";
}

.audit-disclosure .when-open,
.audit-disclosure[open] .when-closed {
  display: none;
}

.audit-disclosure[open] .when-open {
  display: inline;
}

.audit-disclosure > .audit-method-list,
.audit-disclosure > .audit-assumption-grid {
  margin: 0 17px 17px;
}

.data-table {
  border-collapse: collapse;
  font-size: 10px;
  min-width: 620px;
  width: 100%;
}

.data-table th,
.data-table td {
  border-bottom: 1px solid var(--line);
  padding: 9px 10px;
  text-align: left;
  vertical-align: top;
}

.data-table th {
  background: #eee8dc;
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.data-table td {
  font-family: var(--font-mono);
}

.data-table td:last-child,
.data-table th:last-child {
  text-align: right;
}

.validation-section {
  border-top: 1px solid var(--line);
  margin-top: 10px;
  padding-top: 22px;
}

.subsection-heading h4 {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 500;
  margin: 4px 0 0;
}

.issue-count {
  background: var(--brass-light);
  color: #6b511e;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 750;
  padding: 5px 8px;
  text-transform: uppercase;
}

.validation-list {
  display: grid;
  gap: 7px;
  margin-top: 13px;
}

.validation-item {
  align-items: flex-start;
  border: 1px solid var(--line);
  display: grid;
  gap: 11px;
  grid-template-columns: auto 1fr auto;
  padding: 11px;
}

.validation-mark {
  align-items: center;
  border-radius: 50%;
  display: inline-flex;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 800;
  height: 23px;
  justify-content: center;
  width: 23px;
}

.validation-item.warning .validation-mark {
  background: var(--brass-light);
  color: #6b511e;
}

.validation-item.error .validation-mark {
  background: var(--red-light);
  color: var(--red);
}

.validation-item.info .validation-mark {
  background: var(--teal-light);
  color: var(--teal-dark);
}

.validation-item > div {
  display: flex;
  flex-direction: column;
}

.validation-item strong {
  font-size: 10px;
}

.validation-item p {
  color: var(--ink-soft);
  font-size: 9px;
  margin: 2px 0 0;
}

.validation-code {
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 8px;
}

.muted {
  color: var(--ink-soft);
  font-size: 11px;
}

.export-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, 1fr);
}

.export-card {
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  min-height: 260px;
  padding: 18px;
}

.export-card-primary {
  background: var(--teal-dark);
  border-color: var(--teal-dark);
  color: var(--white);
}

.export-card h4 {
  font-family: var(--font-display);
  font-size: 23px;
  font-weight: 500;
  margin: 12px 0 7px;
}

.export-card p {
  color: var(--ink-soft);
  font-size: 10px;
  margin: 0 0 20px;
}

.export-card-primary p,
.export-card-primary .export-format {
  color: #c8ded9;
}

.export-card .button {
  margin-top: auto;
  width: 100%;
}

.export-card-primary .button-primary {
  background: var(--paper-light);
  color: var(--teal-dark);
}

.schedule-fa-a3-panel {
  border: 1px solid var(--line);
  margin-top: 18px;
  padding: 18px;
}

.schedule-fa-a3-panel > .button {
  margin-top: 14px;
}

.schedule-fa-a3-status {
  max-width: 320px;
}

.schedule-fa-a3-records {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.schedule-fa-a3-record {
  border: 1px solid var(--line);
  margin: 0;
  padding: 14px;
}

.schedule-fa-a3-record legend {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 0 6px;
}

.schedule-fa-a3-record legend span {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
}

.schedule-fa-a3-record legend small {
  color: var(--ink-soft);
  font-size: 9px;
}

.schedule-fa-a3-fields {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.schedule-fa-a3-fields label {
  color: var(--ink-soft);
  display: flex;
  flex-direction: column;
  font-size: 9px;
  gap: 5px;
  text-transform: uppercase;
}

.schedule-fa-a3-fields input {
  background: var(--paper-light);
  border: 1px solid var(--line-dark);
  border-radius: 0;
  color: var(--ink);
  font: 12px var(--font-sans);
  min-height: 44px;
  padding: 9px 10px;
  text-transform: none;
  width: 100%;
}

.schedule-fa-a3-fields input[aria-invalid="true"] {
  border-color: var(--red);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--red) 22%, transparent);
}

.schedule-fa-a3-fields input:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

.schedule-fa-a3-fields small {
  color: var(--ink-soft);
  font-size: 9px;
  line-height: 1.35;
  text-transform: none;
}

.handoff-checklist {
  border: 1px solid var(--line);
  margin-top: 18px;
  padding: 18px;
}

.handoff-checklist h4 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 500;
  margin: 0 0 11px;
}

.handoff-checklist label {
  align-items: flex-start;
  color: var(--ink-soft);
  display: flex;
  font-size: 10px;
  gap: 9px;
  margin-top: 7px;
}

.handoff-checklist input {
  accent-color: var(--teal-dark);
  margin-top: 2px;
}

.audit-rail {
  align-items: start;
  background: var(--paper-deep);
  border-top: 1px solid var(--line);
  color: var(--ink);
  display: grid;
  gap: 18px;
  grid-template-columns: 0.75fr 2fr 1fr 1.4fr;
  padding: 18px clamp(20px, 3vw, 34px);
}

.audit-title {
  align-items: center;
  border-bottom: 0;
  display: flex;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 750;
  justify-content: space-between;
  letter-spacing: 0.08em;
  padding-bottom: 14px;
  text-transform: uppercase;
}

.audit-pulse {
  background: #77c8b9;
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(119, 200, 185, 0.13);
  height: 6px;
  width: 6px;
}

.audit-rail dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
}

.audit-rail dl > div {
  border-left: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 3px;
  justify-content: space-between;
  padding: 2px 10px;
}

.audit-rail dt,
.audit-rail dd {
  font-size: 9px;
  margin: 0;
}

.audit-rail dt {
  color: var(--ink-soft);
}

.audit-rail dd {
  color: var(--teal-dark);
  font-family: var(--font-mono);
}

.audit-rule {
  display: flex;
  flex-direction: column;
  margin-top: 0;
}

.audit-rule span {
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 8px;
  text-transform: uppercase;
}

.audit-rule strong {
  font-size: 10px;
  margin-top: 4px;
}

.audit-rule small {
  color: var(--ink-soft);
  font-size: 8px;
  margin-top: 2px;
}

.audit-warning {
  align-items: flex-start;
  background: var(--brass-light);
  border: 1px solid rgba(155, 104, 24, 0.22);
  display: flex;
  gap: 9px;
  margin-top: 0;
  padding: 10px;
}

.audit-warning > span {
  align-items: center;
  border: 1px solid #cfa94f;
  border-radius: 50%;
  color: #e8c56e;
  display: inline-flex;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 8px;
  height: 19px;
  justify-content: center;
  width: 19px;
}

.audit-warning p {
  color: #6b511e;
  font-size: 8px;
  margin: 0;
}

.audit-warning strong {
  color: #6b511e;
}

.model-section {
  border-top: 1px solid var(--line);
  padding-top: 110px;
}

.section-heading.compact {
  margin-bottom: 48px;
}

.model-flow {
  align-items: stretch;
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr auto 1fr auto 1fr;
}

.model-flow article {
  background: var(--paper-light);
  border-top: 3px solid var(--teal-dark);
  padding: 24px;
}

.model-flow article > span {
  color: var(--teal-dark);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 750;
  text-transform: uppercase;
}

.model-flow h3,
.boundary-grid h3 {
  font-family: var(--font-display);
  font-size: 25px;
  font-weight: 500;
  margin: 12px 0 8px;
}

.model-flow p {
  color: var(--ink-soft);
  font-size: 11px;
}

.model-flow small {
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  display: block;
  font-family: var(--font-mono);
  font-size: 8px;
  margin-top: 22px;
  padding-top: 12px;
}

.flow-arrow {
  align-self: center;
  color: var(--teal);
  font-family: var(--font-mono);
  font-size: 23px;
}

.boundary-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr 1fr;
  margin-top: 58px;
}

.boundary-grid article {
  border: 1px solid var(--line-dark);
  padding: clamp(24px, 4vw, 48px);
}

.boundary-label {
  border-radius: 999px;
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 750;
  padding: 5px 9px;
  text-transform: uppercase;
}

.boundary-label.supported {
  background: var(--teal-light);
  color: var(--teal-dark);
}

.boundary-label.excluded {
  background: var(--red-light);
  color: var(--red);
}

.boundary-grid ul {
  color: var(--ink-soft);
  font-size: 12px;
  margin: 18px 0 0;
  padding-left: 18px;
}

.boundary-grid li {
  margin-top: 7px;
}

.opensource-section {
  background: var(--teal-dark);
  color: var(--paper-light);
  display: grid;
  gap: clamp(50px, 8vw, 120px);
  grid-template-columns: 1fr minmax(390px, 0.75fr);
  margin: 40px auto 0;
  max-width: 1600px;
  padding: 100px clamp(24px, 6vw, 92px);
}

.opensource-section .section-index {
  color: #a4d9cf;
}

.source-copy > p {
  color: #c3ddd7;
  font-size: 16px;
  max-width: 680px;
}

.text-link {
  color: #d8eee9;
  font-size: 12px;
  font-weight: 700;
  text-underline-offset: 4px;
}

.source-terminal {
  align-self: center;
  background: #171d1c;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 26px 70px rgba(0, 0, 0, 0.22);
}

.terminal-bar {
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.13);
  display: flex;
  gap: 6px;
  padding: 10px 12px;
}

.terminal-bar span {
  background: #6e7c78;
  border-radius: 50%;
  height: 7px;
  width: 7px;
}

.terminal-bar strong {
  color: #9baca7;
  font-family: var(--font-mono);
  font-size: 8px;
  font-weight: 500;
  margin-left: auto;
}

.source-terminal pre {
  color: #c7e9e2;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.7;
  margin: 0;
  overflow-x: auto;
  padding: 24px;
}

.site-footer {
  background: var(--ink);
  color: var(--paper-light);
  display: grid;
  gap: 60px;
  grid-template-columns: 1fr 1fr auto;
  padding: 70px clamp(24px, 6vw, 92px);
}

.footer-brand .brand-mark {
  background: var(--paper-light);
  color: var(--ink);
}

.footer-brand small {
  color: #a8a097;
}

.site-footer > div:first-child > p {
  color: #9f9890;
  font-size: 10px;
  margin: 18px 0 0;
  max-width: 440px;
}

.footer-note {
  border-left: 1px solid rgba(255, 255, 255, 0.16);
  padding-left: 30px;
}

.footer-note strong {
  color: #d8c485;
  font-family: var(--font-mono);
  font-size: 9px;
  text-transform: uppercase;
}

.footer-note p {
  color: #b4ada4;
  font-size: 10px;
  margin: 6px 0 0;
  max-width: 400px;
}

.site-footer nav {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.site-footer nav a {
  color: #bbb3aa;
  font-size: 10px;
  text-decoration: none;
}

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

.clear-dialog {
  background: var(--paper-light);
  border: 1px solid var(--line-dark);
  box-shadow: var(--shadow);
  color: var(--ink);
  max-width: 460px;
  padding: 0;
}

.clear-dialog::backdrop {
  background: rgba(23, 21, 18, 0.58);
  backdrop-filter: blur(3px);
}

.clear-dialog form {
  padding: 28px;
}

.clear-dialog h2 {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 500;
  margin: 8px 0;
}

.clear-dialog p {
  color: var(--ink-soft);
  font-size: 12px;
}

.dialog-actions {
  display: flex;
  gap: 9px;
  justify-content: flex-end;
  margin-top: 24px;
}

.toast {
  background: var(--ink);
  bottom: 22px;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.24);
  color: var(--white);
  font-size: 11px;
  left: 50%;
  max-width: min(440px, calc(100vw - 32px));
  padding: 12px 16px;
  position: fixed;
  transform: translateX(-50%);
  z-index: 80;
}

@media (max-width: 1180px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .site-header nav {
    display: none;
  }

  .hero {
    gap: 55px;
    grid-template-columns: 1fr 0.85fr;
  }

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

  .workspace-commandbar {
    grid-column: 1 / -1;
  }

  .audit-rail {
    border-top-color: var(--line);
    grid-template-columns: 1fr 2fr 1fr 1.2fr;
  }

  .audit-title {
    border-bottom: 0;
  }

  .audit-rail dl {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    margin: 0;
  }

  .audit-rail dl > div {
    padding: 5px 10px;
  }

  .audit-rule,
  .audit-warning {
    margin-top: 0;
  }
}

@media (max-width: 920px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-copy {
    max-width: none;
  }

  .hero-ledger {
    margin: 0 auto;
    max-width: 620px;
    transform: none;
    width: 100%;
  }

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

  .principles > div,
  .principles > div:last-child {
    border-bottom: 1px solid rgba(255, 255, 255, 0.16);
    border-left: 0;
    border-right: 0;
  }

  .section-heading {
    align-items: start;
    gap: 20px;
    grid-template-columns: 1fr;
  }

  .workspace-shell {
    grid-template-columns: 1fr;
  }

  .workspace-commandbar {
    align-items: stretch;
    flex-direction: column;
    gap: 12px;
  }

  .workspace-command-actions {
    flex-wrap: wrap;
  }

  .step-rail {
    border-bottom: 1px solid var(--line);
    border-right: 0;
    overflow-x: auto;
    padding: 13px 12px;
  }

  .rail-label,
  .clear-button {
    display: none;
  }

  .step-rail ol {
    flex-direction: row;
    min-width: 610px;
  }

  .step-rail ol::before {
    display: none;
  }

  .step-rail li {
    flex: 1;
  }

  .step-button {
    border-bottom: 2px solid transparent;
    border-left: 0;
    min-height: 76px;
  }

  .step-button.is-active {
    border-bottom-color: var(--teal-dark);
  }

  .audit-rail {
    grid-template-columns: 1fr 1fr;
  }

  .review-headline-strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .model-flow {
    grid-template-columns: 1fr;
  }

  .flow-arrow {
    justify-self: center;
    transform: rotate(90deg);
  }

  .opensource-section {
    grid-template-columns: 1fr;
  }

  .site-footer {
    grid-template-columns: 1fr 1fr;
  }

  .site-footer nav {
    grid-column: 1 / -1;
    flex-direction: row;
  }
}

@media (max-width: 680px) {
  .site-header {
    min-height: 66px;
    padding: 0 16px;
  }

  .header-action {
    display: none;
  }

  .brand small {
    display: none;
  }

  .hero {
    padding: 48px 20px 56px;
  }

  .hero h1 {
    font-size: clamp(44px, 14vw, 58px);
  }

  .hero-actions,
  .hero-actions .button {
    align-items: stretch;
    flex-direction: column;
    width: 100%;
  }

  .hero-proof {
    align-items: flex-start;
    flex-direction: column;
    gap: 7px;
  }

  .hero-ledger {
    padding: 15px;
  }

  .workspace-section,
  .model-section {
    padding: 86px 14px;
  }

  .workspace-main {
    padding: 26px 17px;
  }

  .workspace-commandbar {
    padding: 16px;
  }

  .workspace-command-actions,
  .workspace-command-actions .button {
    align-items: stretch;
    flex-direction: column;
    width: 100%;
  }

  .panel-heading {
    gap: 15px;
  }

  .panel-heading .stamp,
  .panel-heading .local-badge {
    flex: 0 0 auto;
  }

  .drop-zone {
    min-height: 225px;
    padding: 22px 15px;
  }

  .import-actions,
  .panel-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .form-grid,
  .reference-grid,
  .review-summary,
  .boundary-grid {
    grid-template-columns: 1fr;
  }

  .reference-actions,
  .conversion-date-summary {
    align-items: stretch;
    grid-template-columns: 1fr;
  }

  .reference-actions {
    flex-direction: column;
  }

  .reference-actions > * {
    width: 100%;
  }

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

  .reference-table-note {
    grid-template-columns: 1fr;
  }

  .reference-table-note a,
  .reference-table-note span {
    grid-column: 1;
    grid-row: auto;
  }

  .review-headline-strip,
  .audit-count-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .review-headline-strip .headline-metric:last-child {
    grid-column: 1 / -1;
  }

  .review-console-bar {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .review-tabs {
    margin-left: -17px;
    margin-right: -17px;
    padding-left: 17px;
    scroll-padding-left: 17px;
  }

  .review-content {
    border-left: 0;
    border-right: 0;
    margin-left: -17px;
    margin-right: -17px;
    padding: 14px 17px;
  }

  .audit-section-card {
    padding: 14px;
  }

  .audit-disclosure {
    padding: 0;
  }

  .audit-disclosure summary {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
    min-height: 0;
    padding: 14px;
  }

  .audit-disclosure > .audit-method-list,
  .audit-disclosure > .audit-assumption-grid {
    margin: 0 14px 14px;
  }

  .audit-section-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .audit-section-heading small {
    max-width: none;
    text-align: left;
  }

  .audit-method-list > div,
  .audit-validation-list li {
    grid-template-columns: 1fr;
  }

  .audit-assumption-grid {
    grid-template-columns: 1fr;
  }

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

  .metric-strip > div:nth-child(2) {
    border-right: 0;
  }

  .metric-strip > div:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

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

  .export-card {
    min-height: 230px;
  }

  .schedule-fa-a3-fields {
    grid-template-columns: 1fr;
  }

  .schedule-fa-a3-record legend {
    max-width: calc(100vw - 80px);
  }

  .audit-rail {
    grid-template-columns: 1fr;
  }

  .audit-rail dl {
    grid-template-columns: 1fr;
  }

  .section-heading h2,
  .opensource-section h2 {
    font-size: 43px;
  }

  .opensource-section {
    padding: 76px 20px;
  }

  .site-footer {
    gap: 36px;
    grid-template-columns: 1fr;
    padding: 58px 22px;
  }

  .footer-note {
    border-left: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.16);
    padding: 24px 0 0;
  }

  .site-footer nav {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
}

.frame-block {
  margin: 12vh auto;
  max-width: 640px;
  padding: 32px;
  text-align: center;
}

.frame-block h1 {
  font-family: var(--serif);
  font-size: clamp(32px, 6vw, 54px);
  line-height: 1;
}

.frame-block p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.6;
}