:root {
  --paper: #f3f0e8;
  --ink: #111d2b;
  --bronze: #a47b52;
  --line: color-mix(in srgb, var(--ink) 24%, transparent);
  --muted: #4c5660;
  --serif: Iowan Old Style, Baskerville, "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --max: 76rem;
  --gutter: clamp(1.25rem, 4vw, 4rem);
  --section: clamp(4.5rem, 10vw, 8.5rem);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--paper); }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); font-size: 16px; line-height: 1.55; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: .16em; }
a:hover { color: var(--bronze); }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible { outline: 3px solid var(--bronze); outline-offset: 4px; }
button, input, textarea { font: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { font-family: var(--serif); font-weight: 400; letter-spacing: -.04em; line-height: .99; }
h1 { max-width: 12ch; margin-bottom: 1.5rem; font-size: clamp(3.25rem, 6vw, 5.4rem); }
h2 { max-width: 16ch; margin-bottom: 1.25rem; font-size: clamp(2.35rem, 4.8vw, 4.6rem); }
h3 { margin-bottom: .65rem; font-size: 1rem; font-weight: 650; letter-spacing: .02em; text-transform: uppercase; }
p { max-width: 61ch; }
.skip-link { position: fixed; z-index: 100; top: -4rem; left: 1rem; padding: .65rem .85rem; color: var(--paper); background: var(--ink); }
.skip-link:focus { top: 1rem; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.site-header { border-bottom: 1px solid var(--line); }
.header-inner, .container { width: min(var(--max), calc(100% - (var(--gutter) * 2))); margin-inline: auto; }
.header-inner { position: relative; min-height: 5.25rem; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.brand { min-width: 0; display: inline-flex; align-items: center; gap: .9rem; text-decoration: none; }
.brand-mark { width: 4.25rem; height: 3rem; display: grid; flex: 0 0 auto; place-items: center; padding-right: .8rem; border-right: 1px solid var(--line); }
.brand-mark img { width: 100%; height: 100%; display: block; object-fit: contain; }
.brand-name { font-family: var(--serif); font-size: clamp(1.2rem, 2vw, 1.55rem); letter-spacing: -.035em; white-space: nowrap; }
.nav-toggle { display: none; padding: .35rem 0; color: var(--ink); border: 0; background: transparent; }
.site-nav ul { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 1.25rem; padding: 0; margin: 0; list-style: none; }
.site-nav a { font-size: .8rem; font-weight: 560; letter-spacing: .01em; text-decoration: none; }
.site-nav a[aria-current="page"] { color: var(--bronze); }
.hero { border-bottom: 1px solid var(--line); }
.hero-inner { min-height: 31rem; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(20rem, .95fr); align-items: center; gap: 3rem; padding-block: clamp(3rem, 5vw, 4.5rem); }
.hero h1 { margin-bottom: 2.4rem; }
.hero .rule { width: 5.5rem; height: 2px; margin-bottom: 1.3rem; background: var(--bronze); }
.hero-note { color: var(--muted); font-size: 1.05rem; }
.hero-note strong { display: block; color: var(--ink); font-weight: 580; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; }
.button { display: inline-flex; align-items: center; gap: 2.75rem; padding: .85rem 1rem; margin-top: 1.35rem; color: var(--paper); background: var(--bronze); font-size: .78rem; font-weight: 700; letter-spacing: .02em; text-decoration: none; }
.button::after { content: "→"; font-size: 1.2rem; font-weight: 400; }
.button:hover { color: var(--paper); background: #8d6642; }
.button-secondary { color: var(--bronze); border: 1px solid var(--bronze); background: transparent; }
.button-secondary:hover { color: var(--paper); border-color: var(--ink); background: var(--ink); }
.operating-diagram { width: min(100%, 31rem); justify-self: end; }
.diagram-owner { width: 72%; display: grid; place-items: center; gap: .15rem; padding: 1rem; margin: 0 auto 1.3rem; border: 1px solid var(--ink); text-align: center; }
.diagram-owner strong { font-family: var(--serif); font-size: 1.65rem; font-weight: 400; letter-spacing: -.03em; }
.diagram-owner small { padding-top: .35rem; border-top: 1px solid var(--bronze); font-size: .72rem; letter-spacing: .08em; }
.diagram-rail { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: .35rem; padding-top: 2.2rem; border-top: 1px solid var(--ink); }
.diagram-rail::before { position: absolute; top: -1.35rem; left: 50%; width: 1px; height: 1.35rem; content: ""; background: var(--ink); }
.diagram-rail span { position: relative; display: grid; gap: .45rem; place-items: center; text-align: center; font-size: .78rem; }
.diagram-rail span::before { width: 1.9rem; height: 1.9rem; display: grid; place-items: center; border: 1px solid var(--ink); border-radius: 50%; color: var(--bronze); content: attr(data-symbol); font-family: var(--serif); font-size: 1.1rem; line-height: 1; white-space: nowrap; }
.diagram-rail span[data-symbol="</>"]::before { font-family: var(--sans); font-size: .84rem; letter-spacing: -.08em; }
.diagram-rail span::after { position: absolute; top: -2.2rem; width: 1px; height: .75rem; content: ""; background: var(--ink); }
.section { padding-block: var(--section); border-bottom: 1px solid var(--line); }
.operating-rail { border-bottom: 1px solid var(--line); }
.operating-rail + .section { padding-top: 3.25rem; }
.section.dark { color: var(--paper); background: var(--ink); border-color: #33414e; }
.section-intro { display: grid; grid-template-columns: minmax(12rem, .35fr) minmax(0, 1fr); gap: 2rem; margin-bottom: clamp(2.5rem, 6vw, 5rem); }
.kicker { display: flex; flex-direction: column; gap: .9rem; color: var(--ink); font-size: .72rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.kicker::before { width: 2.5rem; height: 2px; content: ""; background: var(--bronze); }
.dark .kicker { color: var(--paper); }
.lede { max-width: 43rem; margin-bottom: 0; color: var(--muted); font-size: clamp(1.08rem, 2vw, 1.35rem); }
.dark .lede { color: #c6ccd0; }
.area-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); }
.area { min-height: 16rem; padding: 2rem clamp(1rem, 3vw, 2.3rem); border-right: 1px solid var(--line); }
.area:last-child { border-right: 0; }
.area-icon { width: 3.3rem; height: 3.3rem; display: grid; margin-bottom: 3.25rem; place-items: center; border: 1px solid var(--ink); color: var(--bronze); font-family: var(--serif); font-size: 1.65rem; }
.area p { color: var(--muted); font-size: .94rem; }
.operating-rail .area { min-height: 8rem; display: grid; grid-template-columns: auto 1fr; gap: 1rem; align-items: center; padding-block: 1.25rem; }
.operating-rail .area-icon { width: 2.6rem; height: 2.6rem; margin: 0; font-size: 1.2rem; }
.operating-rail .area h3 { margin-bottom: .25rem; font-size: .78rem; }
.operating-rail .area p { margin: 0; font-size: .78rem; line-height: 1.35; }
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.step { position: relative; padding: 1.5rem 1.25rem 1.5rem 0; }
.step:not(:last-child)::after { position: absolute; top: 3.3rem; right: 0; width: 2.25rem; height: 1px; content: ""; background: var(--bronze); }
.step-number { width: 4.25rem; height: 4.25rem; display: grid; place-items: center; margin-bottom: 1.4rem; border: 1px solid #7c858d; border-radius: 50%; color: var(--bronze); font-family: var(--serif); font-size: 1.45rem; }
.step p { max-width: 21ch; color: var(--muted); font-size: .94rem; }
.dark .step p { color: #c6ccd0; }
.relationship { display: grid; grid-template-columns: minmax(15rem, .7fr) 1.3fr; align-items: center; gap: clamp(2rem, 9vw, 7rem); }
.rings { position: relative; width: min(100%, 24rem); aspect-ratio: 1; display: grid; place-items: center; margin-inline: auto; border: 1px solid var(--ink); border-radius: 50%; }
.rings::before, .rings::after { position: absolute; border: 1px solid var(--ink); border-radius: 50%; content: ""; }
.rings::before { inset: 14%; }
.rings::after { inset: 29%; }
.rings span { color: var(--bronze); font-family: var(--serif); font-size: 2.3rem; }
.relationship-list { margin: 0; padding: 0; list-style: none; }
.relationship-list li { padding: 1.25rem 0; border-top: 1px solid var(--line); }
.relationship-list strong, .relationship-list span { display: block; }
.relationship-list span { max-width: 42ch; color: var(--muted); font-size: .94rem; }
.governance { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(2rem, 10vw, 9rem); align-items: end; }
.triangle { width: min(100%, 20rem); aspect-ratio: 1.1; position: relative; display: grid; place-items: center; clip-path: polygon(50% 0, 100% 100%, 0 100%); background: var(--ink); }
.triangle::after { position: absolute; inset: 2px; content: ""; background: var(--paper); clip-path: inherit; }
.triangle span { z-index: 1; width: 60%; color: var(--bronze); font-family: var(--serif); font-size: 1.1rem; text-align: center; }
.governance-list { padding: 0; margin: 0; list-style: none; border-top: 1px solid var(--line); }
.governance-list li { padding: 1rem 0; border-bottom: 1px solid var(--line); }
.governance-list span { color: var(--muted); }
.page-hero { padding-block: clamp(4rem, 7vw, 6.5rem) clamp(3rem, 5vw, 4.5rem); border-bottom: 1px solid var(--line); }
.page-hero h1 { max-width: 18ch; }
.page-hero .lede { margin-top: 1.6rem; }
.page-hero + .section { padding-block: clamp(2.25rem, 4vw, 3.5rem); }
.page-hero-split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(20rem, .75fr); align-items: end; gap: clamp(2rem, 8vw, 7rem); }
.page-hero-split .lede { margin-bottom: 1.5rem; }
.copy-grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(18rem, 1.2fr); gap: clamp(2.5rem, 9vw, 8rem); }
.copy-grid aside { border-top: 2px solid var(--bronze); padding-top: 1rem; color: var(--muted); font-size: .92rem; }
.copy-grid h2 { font-size: clamp(2rem, 3.6vw, 3.5rem); }
.copy-grid ul { padding-left: 1.15rem; }
.copy-grid li { margin-bottom: .75rem; }
.callout { padding: 1.3rem 1.45rem; border-left: 3px solid var(--bronze); background: #e8e2d7; }
.work-list { border-top: 1px solid var(--line); }
.work-row { display: grid; grid-template-columns: minmax(11rem, .65fr) 1.4fr auto; align-items: center; gap: 1.5rem; padding: 2rem 0; border-bottom: 1px solid var(--line); }
.work-row h2 { margin: 0; font-size: clamp(1.7rem, 3vw, 2.65rem); }
.relationship-label { color: var(--bronze); font-size: .74rem; font-weight: 750; letter-spacing: .06em; text-transform: uppercase; }
.api-boundary { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.api-boundary > div { padding: 1.35rem; background: var(--paper); }
.api-boundary h2 { max-width: none; font-size: clamp(2rem, 3vw, 2.7rem); }
.api-boundary h3 { color: var(--bronze); font-family: var(--serif); font-size: 1.55rem; font-weight: 400; letter-spacing: -.02em; text-transform: none; }
.api-list { padding: 0; margin: 0; list-style: none; }
.api-list li { padding: 1rem 0; border-bottom: 1px solid var(--line); }
.api-list li::before { margin-right: .75rem; color: var(--bronze); content: "✓"; }
.api-control { color: var(--paper); background: var(--ink); }
.section.api-control { padding-block: clamp(2rem, 4vw, 3.25rem); }
.api-control-inner { display: grid; grid-template-columns: .88fr 1.12fr; gap: clamp(2rem, 6vw, 5rem); align-items: center; }
.api-table { width: 100%; border-collapse: collapse; border: 1px solid #80909d; }
.api-table th, .api-table td { padding: .7rem .85rem; border-bottom: 1px solid #80909d; text-align: left; }
.api-table th { width: 34%; color: var(--paper); border-right: 1px solid #80909d; font-weight: 650; }
.api-table td { color: #d8dcde; }
.api-flow { display: grid; grid-template-columns: repeat(4, 1fr); align-items: center; gap: .75rem; }
.api-flow-item { min-height: 8.5rem; display: grid; place-items: center; align-content: center; gap: .5rem; border: 1px solid color-mix(in srgb, var(--bronze) 70%, transparent); text-align: center; font-size: .88rem; }
.api-flow-item::before { display: grid; width: 2.75rem; height: 2.75rem; place-items: center; border: 1px solid var(--bronze); color: var(--bronze); content: attr(data-symbol); font-family: var(--serif); font-size: 1.3rem; }
.api-flow-item:last-child { border-style: dashed; }
.boundary-band { display: grid; grid-template-columns: minmax(10rem, .45fr) minmax(0, 1fr); gap: 2rem; align-items: center; }
.boundary-band strong { color: var(--bronze); font-family: var(--serif); font-size: clamp(1.7rem, 3vw, 2.8rem); font-weight: 400; }
.boundary-band p { margin: 0; color: #d8dcde; font-size: clamp(1.05rem, 2vw, 1.25rem); }
.contact-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: clamp(2rem, 9vw, 8rem); }
.contact-meta { border-top: 2px solid var(--bronze); padding-top: 1.25rem; }
form { display: grid; gap: 1.15rem; }
label { display: grid; gap: .45rem; font-size: .85rem; font-weight: 650; }
input, textarea { width: 100%; padding: .75rem; color: var(--ink); border: 1px solid var(--ink); border-radius: 0; background: transparent; }
textarea { min-height: 10rem; resize: vertical; }
.form-button { width: fit-content; padding: .8rem 1rem; color: var(--paper); border: 0; background: var(--ink); cursor: pointer; }
.form-button:disabled { cursor: wait; opacity: .62; }
.form-status { min-height: 1.5rem; color: var(--muted); font-size: .9rem; }
.form-status.is-success { color: #385a3b; font-weight: 700; }
.form-protection-fields { display: none; }
.turnstile-wrapper { min-height: 65px; }
.turnstile-wrapper[hidden] { display: none; }
.field-error { display: block; min-height: 1.25rem; color: #8a2f26; font-size: .85rem; }
.legal-copy { max-width: 48rem; }
.legal-copy h2 { margin-top: 3rem; font-size: clamp(1.75rem, 3vw, 2.55rem); }
.site-footer { color: var(--paper); background: var(--ink); }
.footer-inner { display: grid; grid-template-columns: auto 1fr auto; gap: 2rem; align-items: center; padding-block: 2.2rem; }
.footer-brand { width: 4.4rem; height: 2.75rem; display: grid; flex: 0 0 auto; place-items: center; text-decoration: none; }
.footer-brand img { width: 100%; height: 100%; display: block; object-fit: contain; filter: brightness(0) invert(1); }
.footer-copy { color: #d4d8d9; font-size: .82rem; }
.footer-nav { display: flex; flex-wrap: wrap; justify-content: end; gap: 1rem; }
.footer-nav a { color: #d4d8d9; font-size: .75rem; }

@media (max-width: 900px) {
  :root { --section: clamp(3.5rem, 14vw, 4.75rem); }
  .header-inner { min-height: 4.5rem; gap: 1rem; }
  .brand-mark { width: 4.1rem; height: 2.75rem; padding-right: .65rem; }
  .brand-name { font-size: 1.1rem; }
  .js .nav-toggle { min-width: 2.75rem; min-height: 2.75rem; display: grid; place-items: center; }
  .js .site-nav { display: none; position: absolute; top: 100%; right: 0; left: 0; z-index: 10; padding: .5rem 1rem; border: 1px solid var(--line); border-top: 0; background: var(--paper); }
  .js .site-nav[data-open="true"] { display: block; }
  .site-nav ul { display: grid; justify-content: stretch; gap: 0; }
  .site-nav a { min-height: 2.75rem; display: flex; align-items: center; border-bottom: 1px solid var(--line); }
  .site-nav li:last-child a { border-bottom: 0; }
  html:not(.js) .header-inner { flex-wrap: wrap; }
  html:not(.js) .site-nav { flex-basis: 100%; }
  html:not(.js) .site-nav ul { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 1rem; }
  .hero-inner, .section-intro, .relationship, .governance, .copy-grid, .contact-layout, .page-hero-split, .boundary-band { grid-template-columns: 1fr; }
  .hero-inner { min-height: auto; gap: 1.25rem; padding-block: 2.75rem 1.75rem; }
  .hero h1 { margin-bottom: 1.75rem; }
  .mark-diagram { width: min(78%, 21rem); justify-self: center; margin-block: 1.75rem; }
  .operating-diagram { width: min(100%, 25rem); justify-self: center; margin-block: 0; }
  .diagram-owner { margin-bottom: 1rem; }
  .diagram-rail {
    grid-template-columns:
      minmax(0, 1fr)
      minmax(0, .94fr)
      minmax(0, 1.12fr)
      minmax(0, .94fr);
    padding-top: 1.9rem;
  }
  .diagram-rail span {
    min-width: 0;
    gap: .35rem;
    overflow-wrap: anywhere;
    font-size: .76rem;
    line-height: 1.35;
  }
  .area-grid, .process, .api-boundary, .api-control-inner { grid-template-columns: 1fr; }
  .area { min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .operating-rail .area { min-height: auto; }
  .area-icon { margin-bottom: 1.5rem; }
  .step { min-height: 6.2rem; padding: 1.25rem 0 1.25rem 5.4rem; }
  .step-number { position: absolute; top: 1.25rem; left: 0; width: 3.65rem; height: 3.65rem; }
  .step:not(:last-child)::after { top: auto; right: auto; bottom: 0; left: 1.82rem; width: 1px; height: 1.25rem; }
  .page-hero { padding-block: 3rem 2.75rem; }
  .page-hero h1 { margin-bottom: 1.25rem; }
  .page-hero .lede, .page-hero-split .lede { margin: 0; }
  .page-hero-split { gap: 1.5rem; }
  .copy-grid { gap: 2rem; }
  .work-row { grid-template-columns: 1fr; gap: .65rem; }
  .api-flow { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr; gap: 1.25rem; }
  .footer-nav { justify-content: start; }
  .footer-nav a { min-height: 2.75rem; display: inline-flex; align-items: center; }
}

@media (max-width: 360px) {
  :root { --gutter: 1rem; }
  h1 { max-width: 100%; font-size: clamp(2.75rem, 14vw, 3.05rem); }
  h2 { font-size: clamp(2.05rem, 11vw, 2.35rem); }
  .brand { gap: .6rem; }
  .brand-mark { width: 4.2rem; height: 2.65rem; padding-right: .55rem; }
  .brand-name { font-size: .98rem; }
  .hero-actions { display: grid; }
  .button { width: 100%; justify-content: space-between; margin-top: .65rem; }
  .diagram-rail span { font-size: .7rem; }
  .api-flow { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; } }