:root {
  --paper: #e6e4e0;
  --paper-light: #efede8;
  --ink: #221f1b;
  --line: #cbc6be;
  --muted: #5c564e;
  --plate: #322e28;
  --copper: #b87549;
  --copper-deep: #8f5430;
  --copper-lit: #d89a6a;
  --steelhui: #2a4035;
  --measure: 72rem;
  --reading: 44rem;
  --serif: Georgia, "Times New Roman", serif;
  --sans: Inter, "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.7;
}

a {
  color: var(--copper-deep);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}

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

a:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: 1rem;
  left: 1rem;
  padding: 0.65rem 0.9rem;
  color: var(--paper);
  background: var(--ink);
  font-family: var(--mono);
  font-size: 0.75rem;
  transform: translateY(-180%);
}

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

.plate-mark {
  position: fixed;
  z-index: 10;
  inset: 1rem;
  border: 1px solid var(--line);
  pointer-events: none;
}

.plate-mark span {
  position: absolute;
  width: 0.8rem;
  height: 0.8rem;
}

.plate-mark span::before,
.plate-mark span::after {
  content: "";
  position: absolute;
  background: var(--copper);
}

.plate-mark span::before {
  top: 50%;
  left: 0;
  width: 100%;
  height: 1px;
}

.plate-mark span::after {
  top: 0;
  left: 50%;
  width: 1px;
  height: 100%;
}

.plate-mark span:nth-child(1) { top: -0.4rem; left: -0.4rem; }
.plate-mark span:nth-child(2) { top: -0.4rem; right: -0.4rem; }
.plate-mark span:nth-child(3) { right: -0.4rem; bottom: -0.4rem; }
.plate-mark span:nth-child(4) { bottom: -0.4rem; left: -0.4rem; }

.page-shell {
  width: min(calc(100% - 5rem), var(--measure));
  margin-inline: auto;
}

.site-header {
  border-bottom: 1px solid var(--line);
}

.header-inner {
  min-height: 6.25rem;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 2.5rem;
}

.wordmark {
  font-family: var(--serif);
  font-size: 1.7rem;
  font-weight: 700;
  letter-spacing: 0;
}

.wordmark span {
  color: var(--copper-deep);
}

.section-nav {
  display: flex;
  justify-content: center;
  gap: 1.6rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  text-transform: uppercase;
}

.section-nav a {
  color: var(--muted);
  text-decoration: none;
}

.section-nav a:hover {
  color: var(--copper-deep);
  text-decoration: underline;
  text-underline-offset: 0.45rem;
}

.draft-stamp,
.plate-number,
.section-label,
.edition-note,
.contents,
.release-plate figcaption,
.change-chain figcaption,
.signed-margin,
.freeze-matrix {
  font-family: var(--mono);
}

.draft-stamp {
  padding: 0.45rem 0.65rem;
  border: 1px solid var(--ink);
  font-size: 0.66rem;
  text-transform: uppercase;
}

.article-header {
  padding-top: 6.5rem;
  padding-bottom: 7.75rem;
}

.plate-number,
.section-label {
  margin: 0 0 1.4rem;
  color: var(--muted);
  font-size: 0.72rem;
  text-transform: uppercase;
}

.plate-number span,
.section-label span {
  color: var(--copper-deep);
}

.headline-grid {
  display: grid;
  grid-template-columns: minmax(0, 8fr) minmax(14rem, 3fr);
  gap: 5rem;
  align-items: end;
}

h1,
h2 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: 0;
}

h1 {
  max-width: 15ch;
  font-size: 4.5rem;
  line-height: 1.02;
}

h2 {
  max-width: 22ch;
  font-size: 2.25rem;
  line-height: 1.16;
}

.dek {
  max-width: 64ch;
  margin: 2rem 0 0;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 1.26rem;
  line-height: 1.55;
}

.edition-note {
  margin: 0;
  border-top: 1px solid var(--ink);
}

.edition-note div {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 0.8rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--line);
}

.edition-note dt,
.edition-note dd {
  margin: 0;
  font-size: 0.68rem;
}

.edition-note dt {
  color: var(--muted);
  text-transform: uppercase;
}

.release-plate {
  position: relative;
  margin: 6rem 0 0;
  display: grid;
  grid-template-columns: 1fr 1px 1fr;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.release-plate .half {
  position: relative;
  min-height: 24rem;
  padding: 4rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
}

.cavity-half {
  text-align: right;
  align-items: flex-end;
}

.core-half {
  color: var(--paper);
  background: var(--plate);
}

.half-kicker {
  color: var(--copper-deep);
  font-family: var(--mono);
  font-size: 0.7rem;
  text-transform: uppercase;
}

.core-half .half-kicker {
  color: var(--copper-lit);
}

.half strong {
  z-index: 1;
  margin-top: 1.25rem;
  font-family: var(--serif);
  font-size: 2rem;
  font-weight: 500;
}

.half > span:last-of-type {
  z-index: 1;
  margin-top: 0.4rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.core-half > span:last-of-type {
  color: var(--paper);
}

.half i {
  position: absolute;
  width: 12rem;
  height: 12rem;
  border: 1px solid var(--copper);
  transform: rotate(45deg);
  opacity: 0.3;
}

.cavity-half i { right: -6rem; }
.core-half i { left: -6rem; border-color: var(--copper-lit); }

.parting-axis {
  position: relative;
  z-index: 2;
  background: var(--ink);
}

.parting-axis::before,
.parting-axis::after {
  content: "";
  position: absolute;
  left: -0.35rem;
  width: 0.7rem;
  height: 0.7rem;
  border: 1px solid var(--ink);
  transform: rotate(45deg);
  background: var(--paper);
}

.parting-axis::before { top: 1rem; }
.parting-axis::after { bottom: 1rem; }

.parting-axis span {
  position: absolute;
  top: 50%;
  left: 50%;
  padding: 0.35rem 0.55rem;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--ink);
  font-family: var(--mono);
  font-size: 0.62rem;
  white-space: nowrap;
  transform: translate(-50%, -50%) rotate(-90deg);
}

.release-plate figcaption,
.change-chain figcaption {
  grid-column: 1 / -1;
  padding: 1rem 0;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 0.68rem;
}

.registration-rule {
  position: relative;
  height: 1px;
  background: var(--ink);
}

.registration-rule span::before,
.registration-rule span::after {
  content: "";
  position: absolute;
  top: -0.28rem;
  width: 0.55rem;
  height: 0.55rem;
  border-top: 1px solid var(--ink);
  border-left: 1px solid var(--ink);
  transform: rotate(45deg);
}

.registration-rule span::before { left: 2rem; }
.registration-rule span::after { right: 2rem; transform: rotate(225deg); }

.article-frame {
  display: grid;
  grid-template-columns: minmax(11rem, 2fr) minmax(0, 8fr);
  gap: 5rem;
  align-items: start;
  padding-top: 7rem;
  padding-bottom: 8.75rem;
}

.contents {
  position: sticky;
  top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--ink);
  font-size: 0.69rem;
}

.contents p {
  margin: 0 0 1rem;
  color: var(--muted);
  text-transform: uppercase;
}

.contents ol {
  margin: 0;
  padding-left: 1.4rem;
}

.contents li {
  margin: 0.6rem 0;
  color: var(--copper-deep);
}

.contents a {
  color: var(--ink);
  text-decoration: none;
}

.contents a:hover {
  color: var(--copper-deep);
}

.article-body {
  width: 100%;
  max-width: var(--reading);
}

.article-body section {
  margin-bottom: 6.5rem;
  scroll-margin-top: 2rem;
}

.article-body p {
  margin: 1.35rem 0 0;
}

.article-body .lede {
  margin-top: 0;
  font-family: var(--serif);
  font-size: 1.3rem;
  line-height: 1.62;
}

.article-body .cite {
  margin-left: 0.12rem;
  font-family: var(--mono);
  font-size: 0.69rem;
  text-decoration: none;
  vertical-align: super;
}

.pencil-note {
  margin: 2.5rem 0 0 4rem;
  padding: 1.25rem 0 1.25rem 1.5rem;
  border-left: 1px solid var(--copper);
  color: var(--muted);
}

.pencil-note > span {
  color: var(--copper-deep);
  font-family: var(--mono);
  font-size: 0.68rem;
  text-transform: uppercase;
}

.pencil-note p {
  margin-top: 0.65rem;
  font-family: var(--serif);
  font-style: italic;
}

.freeze-matrix {
  margin-top: 2.5rem;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.matrix-row {
  display: grid;
  grid-template-columns: minmax(7rem, 1fr) minmax(0, 3fr) minmax(9rem, 1.6fr);
}

.matrix-row > * {
  margin: 0;
  padding: 0.85rem 1rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-size: 0.72rem;
  line-height: 1.5;
}

.matrix-row > *:last-child {
  border-right: 0;
}

.matrix-row:last-child > * {
  border-bottom: 0;
}

.matrix-head {
  color: var(--paper);
  background: var(--plate);
  text-transform: uppercase;
}

.matrix-row strong {
  color: var(--copper-deep);
  text-transform: uppercase;
}

.change-chain {
  margin: 2.75rem 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.change-chain > div {
  min-height: 10rem;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  background: var(--paper);
}

.change-chain > div:nth-of-type(even) {
  color: var(--paper);
  background: var(--plate);
}

.change-chain span,
.change-chain small {
  font-family: var(--mono);
}

.change-chain span {
  color: var(--copper-deep);
  font-size: 0.67rem;
}

.change-chain > div:nth-of-type(even) span {
  color: var(--copper-lit);
}

.change-chain strong {
  margin-top: 1.5rem;
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 500;
}

.change-chain small {
  margin-top: auto;
  color: var(--muted);
  font-size: 0.65rem;
  line-height: 1.45;
}

.change-chain > div:nth-of-type(even) small {
  color: var(--paper);
}

.change-chain > b {
  display: none;
}

.change-chain figcaption {
  padding-inline: 0;
  background: var(--paper);
}

.release-box {
  padding: 3.5rem;
  color: var(--paper);
  background: var(--plate);
}

.release-box .section-label span {
  color: var(--copper-lit);
}

.release-box h2 {
  color: var(--paper);
}

.release-box p:last-child {
  color: var(--paper);
}

.references {
  padding-top: 4rem;
  border-top: 1px solid var(--ink);
}

.references > p:not(.section-label) {
  color: var(--muted);
  font-family: var(--serif);
  font-style: italic;
}

.references ol {
  margin: 2.5rem 0 0;
  padding-left: 1.4rem;
}

.references li {
  margin-bottom: 1.15rem;
  padding-left: 0.4rem;
  font-size: 0.87rem;
  overflow-wrap: anywhere;
}

.site-footer {
  border-top: 1px solid var(--ink);
  padding: 0 0 4rem;
}

.signed-margin {
  display: grid;
  grid-template-columns: 1.4fr 1.35fr 1fr 1fr;
  border-left: 1px solid var(--line);
}

.signed-margin > div {
  min-height: 7.5rem;
  padding: 1.25rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.signed-margin span,
.signed-margin strong,
.signed-margin a {
  display: block;
}

.signed-margin span {
  color: var(--muted);
  font-size: 0.63rem;
  text-transform: uppercase;
}

.signed-margin strong,
.signed-margin a {
  margin-top: 1.2rem;
  color: var(--ink);
  font-size: 0.69rem;
  font-weight: 400;
}

.signed-margin .family-signature a {
  color: var(--steelhui);
  font-family: var(--serif);
  font-style: italic;
  text-decoration: none;
}

@media (max-width: 62rem) {
  .header-inner {
    grid-template-columns: auto 1fr;
  }

  .section-nav {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-content: flex-start;
    padding-bottom: 1rem;
    overflow-x: auto;
  }

  .draft-stamp {
    justify-self: end;
  }

  .headline-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .edition-note {
    max-width: 28rem;
  }

  .article-frame {
    grid-template-columns: 1fr;
    gap: 4rem;
  }

  .contents {
    position: static;
    columns: 2;
  }

  .article-body {
    margin-inline: auto;
  }

  .signed-margin {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 44rem) {
  .page-shell {
    width: min(calc(100% - 2.5rem), var(--measure));
  }

  .plate-mark {
    inset: 0.5rem;
    border-right: 0;
    border-left: 0;
  }

  .header-inner {
    min-height: 5rem;
    gap: 1rem;
  }

  .wordmark {
    font-size: 1.45rem;
  }

  .section-nav {
    gap: 1.25rem;
  }

  .article-header {
    padding-top: 4.5rem;
    padding-bottom: 5rem;
  }

  h1 {
    font-size: 2.7rem;
  }

  h2 {
    font-size: 1.85rem;
  }

  .dek {
    font-size: 1.1rem;
  }

  .release-plate {
    grid-template-columns: 1fr;
  }

  .release-plate .half {
    min-height: 17rem;
    padding: 2rem;
  }

  .cavity-half {
    text-align: left;
    align-items: flex-start;
  }

  .parting-axis {
    width: 100%;
    height: 1px;
  }

  .parting-axis::before,
  .parting-axis::after {
    top: -0.35rem;
  }

  .parting-axis::before { left: 1rem; }
  .parting-axis::after { right: 1rem; left: auto; }

  .parting-axis span {
    transform: translate(-50%, -50%);
  }

  .contents {
    columns: 1;
  }

  .article-frame {
    padding-top: 4.5rem;
    padding-bottom: 5.5rem;
  }

  .article-body section {
    margin-bottom: 4.5rem;
  }

  .pencil-note {
    margin-left: 0;
  }

  .matrix-row {
    grid-template-columns: 1fr;
    padding: 1rem 0;
    border-bottom: 1px solid var(--line);
  }

  .matrix-head {
    display: none;
  }

  .matrix-row > * {
    padding: 0.25rem 0.8rem;
    border: 0;
  }

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

  .change-chain {
    grid-template-columns: 1fr;
  }

  .change-chain > div {
    min-height: 8rem;
  }

  .release-box {
    padding: 2.25rem 1.5rem;
  }

  .signed-margin {
    grid-template-columns: 1fr;
  }
}

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

/* Home, Resources, and renderer-compatible article shell. */
.wordmark {
  color: var(--ink);
  text-decoration: none;
}

.section-nav a[aria-current="page"] {
  color: var(--copper-deep);
  text-decoration: underline;
  text-underline-offset: 0.45rem;
}

.site-intro,
.resource-header {
  padding-top: 7rem;
  padding-bottom: 7.5rem;
}

.site-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.25rem;
}

.site-actions a,
.featured-note a {
  display: inline-flex;
  align-items: center;
  min-height: 2.8rem;
  padding: 0.7rem 0.95rem;
  color: var(--paper);
  background: var(--plate);
  border: 1px solid var(--plate);
  font-family: var(--mono);
  font-size: 0.68rem;
  text-decoration: none;
  text-transform: uppercase;
}

.site-actions a + a {
  color: var(--ink);
  background: transparent;
  border-color: var(--ink);
}

.site-actions a:hover,
.featured-note a:hover {
  color: var(--paper);
  background: var(--copper-deep);
  border-color: var(--copper-deep);
}

.site-section,
.resource-archive {
  padding-top: 7rem;
  padding-bottom: 8rem;
}

.site-section-head {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 4fr) minmax(16rem, 2fr);
  gap: 2rem;
  align-items: end;
}

.site-section-head .section-label,
.site-section-head h2,
.site-section-head p {
  margin: 0;
}

.site-section-head > p:last-child {
  color: var(--muted);
}

.responsibility-gate {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 4rem;
  border-top: 1px solid var(--ink);
  border-left: 1px solid var(--line);
}

.responsibility-gate article {
  min-height: 17rem;
  padding: 2.5rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.responsibility-gate article:last-child {
  color: var(--paper);
  background: var(--plate);
}

.responsibility-gate span,
.responsibility-gate h3,
.resource-entry > span,
.resource-entry > strong {
  font-family: var(--mono);
}

.responsibility-gate span {
  color: var(--copper-deep);
  font-size: 0.68rem;
}

.responsibility-gate article:last-child span {
  color: var(--copper-lit);
}

.responsibility-gate h3 {
  margin: 3.5rem 0 0;
  font-size: 1rem;
  font-weight: 400;
  text-transform: uppercase;
}

.responsibility-gate p {
  max-width: 42ch;
  margin: 1rem 0 0;
  color: var(--muted);
}

.responsibility-gate article:last-child p {
  color: var(--paper);
}

.featured-note {
  display: grid;
  grid-template-columns: minmax(12rem, 2fr) minmax(0, 6fr);
  gap: 3rem;
  padding-top: 6rem;
  padding-bottom: 7rem;
  border-top: 1px solid var(--ink);
}

.featured-note .section-label,
.featured-note h2,
.featured-note p {
  margin-top: 0;
}

.featured-note p {
  max-width: 60ch;
  color: var(--muted);
}

.featured-note a {
  margin-top: 1.5rem;
}

.resource-header h1 {
  max-width: 16ch;
}

.archive-heading {
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 2rem;
  align-items: end;
  margin-bottom: 3rem;
}

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

.resource-entry {
  display: grid;
  grid-template-columns: minmax(9rem, 1fr) minmax(0, 4fr) auto;
  gap: 2rem;
  align-items: center;
  padding: 2rem 0;
  color: var(--ink);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}

.resource-entry > span,
.resource-entry > strong {
  color: var(--copper-deep);
  font-size: 0.68rem;
}

.resource-entry h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.65rem;
  font-weight: 500;
}

.resource-entry p {
  max-width: 64ch;
  margin: 0.7rem 0 0;
  color: var(--muted);
}

.resource-entry:hover h3 {
  color: var(--copper-deep);
}

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

.template-article-frame .article-body {
  max-width: var(--reading);
  margin-inline: auto;
}

.template-mold-hero {
  margin-top: 5rem;
}

.template-mold-hero:empty {
  display: none;
}

.template-mold-hero .article-hero-media {
  margin: 0;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.template-mold-hero img {
  display: block;
  width: 100%;
  max-height: 38rem;
  object-fit: cover;
}

.template-mold-hero figcaption {
  padding: 0.9rem 0;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.68rem;
}

.template-article-frame .article-body > h2 {
  margin-top: 6rem;
  margin-bottom: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--ink);
}

.template-article-frame .article-body > h2:first-child {
  margin-top: 0;
}

.template-article-frame .article-body h3 {
  margin: 2.5rem 0 0.8rem;
  font-family: var(--serif);
  font-size: 1.45rem;
  font-weight: 500;
}

.template-article-frame .article-body ul,
.template-article-frame .article-body ol {
  margin: 1.5rem 0 0;
}

.template-article-frame .article-body li {
  margin-bottom: 0.75rem;
}

.template-article-frame .article-body table {
  width: 100%;
  margin-top: 2rem;
  border-collapse: collapse;
  font-size: 0.82rem;
}

.template-article-frame .article-body th,
.template-article-frame .article-body td {
  padding: 0.8rem;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.template-article-frame .article-body th {
  color: var(--paper);
  background: var(--plate);
  font-family: var(--mono);
  font-size: 0.68rem;
  text-transform: uppercase;
}

@media (max-width: 62rem) {
  .site-section-head {
    grid-template-columns: 1fr 2fr;
  }

  .site-section-head > p:last-child {
    grid-column: 2;
  }
}

@media (max-width: 44rem) {
  .site-intro,
  .resource-header {
    padding-top: 4.5rem;
    padding-bottom: 5rem;
  }

  .site-section,
  .resource-archive {
    padding-top: 4.5rem;
    padding-bottom: 5.5rem;
  }

  .site-section-head,
  .responsibility-gate,
  .featured-note,
  .archive-heading,
  .resource-entry {
    grid-template-columns: 1fr;
  }

  .site-section-head > p:last-child {
    grid-column: 1;
  }

  .responsibility-gate article {
    min-height: 13rem;
    padding: 1.75rem;
  }

  .featured-note,
  .resource-entry {
    gap: 1.5rem;
  }
}

/* Dedicated Articles entry below the existing cover. */
[data-articles-entry] { border-top: 1px solid var(--line, var(--hairline, #d5d5d5)); border-bottom: 1px solid var(--line, var(--hairline, #d5d5d5)); }
.articles-entry-inner { width: min(1180px, calc(100% - 48px)); margin: 0 auto; padding: 42px 0; display: flex; align-items: end; justify-content: space-between; gap: 28px; }
.articles-entry-inner h2 { max-width: 620px; margin: 10px 0 0; }
.articles-entry-inner p:not(.eyebrow) { max-width: 620px; margin: 12px 0 0; color: var(--muted, #657078); }
.articles-entry-link { display: inline-flex; align-items: center; gap: 12px; flex: 0 0 auto; border: 1px solid currentColor; padding: 12px 16px; text-decoration: none; }
.articles-entry-link:hover { background: currentColor; color: var(--white, #fff); }
@media (max-width: 720px) { .articles-entry-inner { width: min(100% - 32px, 1180px); align-items: flex-start; flex-direction: column; } }