:root {
  color-scheme: dark;
  --bg: #0a0c0b;
  --panel: #121514;
  --inset: #1a1e1c;
  --line: #343b37;
  --line-strong: #77827b;
  --text: #e8ece9;
  --muted: #aeb8b1;
  --ok: #6ee7a0;
  --warn: #f2b33d;
  --error: #ff8f8f;
  --focus: #f8c552;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
  --wrap: 76rem;
  --measure: 68ch;
  --s1: .25rem;
  --s2: .5rem;
  --s3: .75rem;
  --s4: 1rem;
  --s5: 1.5rem;
  --s6: 2rem;
  --s7: 3rem;
  --s8: 4rem;
}

* { box-sizing: border-box; }
html { background: var(--bg); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 1rem/1.65 var(--mono);
  overflow-wrap: break-word;
}
img, svg { max-width: 100%; }
button, input { font: inherit; }
.wrap { width: min(calc(100% - 2.5rem), var(--wrap)); margin-inline: auto; }
.measure { max-width: var(--measure); }
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 100;
  inset: .5rem auto auto .5rem;
  translate: 0 -180%;
  padding: .7rem 1rem;
  border: 2px solid #000;
  background: var(--warn);
  color: #201700;
  font-weight: 800;
}
.skip-link:focus { translate: 0; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
::selection { background: var(--warn); color: #201700; }

a { color: var(--ok); text-underline-offset: .22em; text-decoration-thickness: .09em; }
a:hover, a:focus-visible { color: var(--warn); }
p, ul, ol, dl, figure { margin: 0 0 var(--s4); }
ul, ol { padding-left: 1.35rem; }
li + li { margin-top: .45rem; }
code {
  padding: .08em .28em;
  border: 1px solid var(--line);
  background: var(--inset);
  color: var(--text);
  font: .92em/1.5 var(--mono);
}
h1, h2, h3, h4 { margin: 0 0 var(--s4); line-height: 1.2; letter-spacing: -.02em; }
h1 { max-width: 22ch; font-size: clamp(1.75rem, 5vw, 2.75rem); }
h2 { margin-top: var(--s7); font-size: clamp(1.3rem, 3vw, 1.7rem); }
h3 { margin-top: var(--s6); font-size: 1.0625rem; }
h4 { margin-top: var(--s5); font-size: 1rem; }

.site-header { border-bottom: 1px solid var(--line-strong); background: var(--panel); }
.header-row { display: flex; align-items: center; justify-content: space-between; gap: var(--s4); padding-block: .65rem; }
.brand {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  gap: .65rem;
  color: var(--text);
  font-weight: 800;
  text-decoration: none;
}
.brand-mark { color: var(--ok); }
.brand-mode { color: var(--muted); font-size: .75rem; font-weight: 400; letter-spacing: .1em; text-transform: uppercase; }
.site-nav, .footer-nav, .machine-row { display: flex; flex-wrap: wrap; gap: .25rem .85rem; margin: 0; padding: 0; list-style: none; }
.site-nav li, .footer-nav li, .machine-row li { margin: 0; }
.site-nav a, .footer-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.75rem;
  min-height: 2.75rem;
  padding-inline: .35rem;
  color: var(--text);
  font-size: .82rem;
  text-decoration: none;
}
.site-nav a[aria-current="page"], .site-nav a:hover, .site-nav a:focus-visible { color: var(--warn); text-decoration: underline; }

.ribbon { border-bottom: 2px solid var(--warn); background: var(--panel); }
.ribbon p { width: min(calc(100% - 2.5rem), var(--wrap)); margin: 0 auto; padding-block: .55rem; color: var(--muted); font-size: .78rem; }
.ribbon strong { color: var(--warn); }

.page-tools { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--s3); padding-block: var(--s4); border-bottom: 1px solid var(--line); }
.route-label { color: var(--muted); font-size: .75rem; letter-spacing: .08em; text-transform: uppercase; }
.markdown-link, .machine-link, .button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: .45rem .75rem;
  border: 1px solid var(--line-strong);
  color: var(--ok);
  font-size: .78rem;
  text-decoration: none;
}
.markdown-link:hover, .machine-link:hover, .button:hover,
.markdown-link:focus-visible, .machine-link:focus-visible, .button:focus-visible { border-color: var(--warn); background: var(--inset); color: var(--warn); }
.button-primary { border: 2px solid var(--warn); color: var(--warn); font-weight: 800; }

.page-main { padding-bottom: var(--s8); }
.page-head { padding-block: clamp(var(--s6), 6vw, var(--s8)); border-bottom: 1px solid var(--line); }
.unit-label { margin-bottom: var(--s3); color: var(--muted); font-size: .75rem; letter-spacing: .14em; text-transform: uppercase; }
.contract { max-width: 62ch; padding-left: var(--s4); border-left: 3px solid var(--warn); color: var(--text); font-size: clamp(1rem, 2vw, 1.2rem); }
.lede { max-width: var(--measure); color: var(--muted); }
.status-row, .inline-links { display: flex; flex-wrap: wrap; gap: var(--s2); align-items: center; }
.chip {
  display: inline-flex;
  align-items: center;
  min-height: 1.75rem;
  padding: .15rem .45rem;
  border: 1px solid var(--line-strong);
  color: var(--muted);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .08em;
  line-height: 1.2;
  text-transform: uppercase;
  white-space: nowrap;
}
.chip-ok { border-color: var(--ok); color: var(--ok); }
.chip-warn { border-color: var(--warn); color: var(--warn); }
.chip-error { border-color: var(--error); color: var(--error); }

.hero-grid { display: grid; gap: var(--s7); padding-block: clamp(var(--s6), 6vw, var(--s8)); border-bottom: 1px solid var(--line); }
.hero-copy h1 { margin-bottom: var(--s5); }
.machine-row { margin-top: var(--s5); color: var(--muted); font-size: .78rem; }
.machine-row a { overflow-wrap: anywhere; }

.panel {
  position: relative;
  min-width: 0;
  margin-top: var(--s5);
  padding: var(--s5);
  border: 2px solid var(--line-strong);
  background: var(--panel);
}
.panel-label {
  position: absolute;
  top: 0;
  left: var(--s4);
  translate: 0 -50%;
  padding: .1rem .45rem;
  border: 1px solid var(--line-strong);
  background: var(--bg);
  color: var(--warn);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.panel > :last-child { margin-bottom: 0; }
.panel-grid { display: grid; gap: var(--s4); }
.panel-flat { background: transparent; }
.callout { padding: var(--s4); border-left: 4px solid var(--warn); background: var(--panel); }
.callout strong { color: var(--warn); }
.callout-error { border-color: var(--error); }

.code-block { min-width: 0; margin: var(--s5) 0 var(--s4); border: 2px solid var(--line-strong); background: #060807; }
.code-block figcaption { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--s2); min-height: 2.75rem; padding: .45rem .75rem; border-bottom: 1px solid var(--line); background: var(--inset); }
.code-label { color: var(--muted); font-size: .72rem; letter-spacing: .09em; text-transform: uppercase; }
.code-block pre { max-width: 100%; margin: 0; padding: var(--s4); overflow: auto; color: var(--ok); font: .875rem/1.7 var(--mono); overscroll-behavior-inline: contain; }
.code-block pre code { padding: 0; border: 0; background: transparent; color: inherit; font: inherit; }
.copy-btn {
  min-height: 2.75rem;
  padding: .4rem .8rem;
  border: 1px solid var(--line-strong);
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.copy-btn:hover, .copy-btn:focus-visible, .copy-btn[data-state="copied"] { border-color: var(--ok); color: var(--ok); }

.section { padding-block: clamp(var(--s6), 6vw, var(--s8)); border-bottom: 1px solid var(--line); }
.section > h2:first-child, .section > .unit-label + h2 { margin-top: 0; }
.workflow { max-width: 72ch; margin-top: var(--s6); padding: 0; list-style: none; counter-reset: flow; }
.workflow li { position: relative; margin: 0; padding: 0 0 var(--s6) 3.2rem; border-left: 2px solid var(--line-strong); counter-increment: flow; }
.workflow li:last-child { padding-bottom: 0; border-left-color: transparent; }
.workflow li::before { position: absolute; top: -.1rem; left: -.95rem; display: grid; width: 1.8rem; height: 1.8rem; place-items: center; border: 2px solid var(--warn); background: var(--bg); color: var(--warn); content: counter(flow, decimal-leading-zero); font-size: .68rem; font-weight: 800; }
.workflow h3 { margin: 0 0 var(--s2); }
.workflow p { color: var(--muted); }

.trust-flow { display: grid; gap: 1px; margin-block: var(--s6); border: 1px solid var(--line-strong); background: var(--line-strong); }
.trust-node { min-width: 0; padding: var(--s4); background: var(--panel); }
.trust-node strong, .trust-node span { display: block; }
.trust-node span { margin-top: .3rem; color: var(--muted); font-size: .82rem; }
.trust-arrow { display: none; }

.link-grid, .status-grid { display: grid; gap: 1px; margin-top: var(--s6); border: 1px solid var(--line-strong); background: var(--line-strong); }
.link-grid a, .status-grid > div { min-width: 0; padding: var(--s4); background: var(--panel); }
.link-grid a { display: block; color: var(--text); text-decoration: none; }
.link-grid a:hover, .link-grid a:focus-visible { background: var(--inset); color: var(--warn); }
.link-grid strong, .link-grid span, .status-grid strong, .status-grid span { display: block; }
.link-grid strong { color: var(--ok); }
.link-grid span, .status-grid span { margin-top: .25rem; color: var(--muted); font-size: .82rem; }

.table-wrap { max-width: 100%; margin-block: var(--s5); overflow-x: auto; border: 1px solid var(--line-strong); }
table { width: 100%; border-collapse: collapse; font-size: .875rem; }
th, td { padding: .7rem .8rem; border: 1px solid var(--line); text-align: left; vertical-align: top; }
thead th { background: var(--inset); color: var(--muted); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; }

.rail-grid { display: grid; gap: var(--s6); padding-top: var(--s6); }
.rail { align-self: start; min-width: 0; padding: var(--s4); border: 1px solid var(--line-strong); background: var(--panel); }
.rail h2 { margin: 0 0 var(--s3); font-size: .85rem; letter-spacing: .08em; text-transform: uppercase; }
.rail ul { margin: 0; padding: 0; list-style: none; }
.rail li { margin: 0; border-top: 1px solid var(--line); }
.rail a { display: block; padding: .55rem 0; font-size: .78rem; }
.article { min-width: 0; }
.article > :first-child { margin-top: 0; }
.definition-list { display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: .45rem 1rem; }
.definition-list dt { color: var(--muted); }
.definition-list dd { margin: 0; }

.api-tools { margin-block: var(--s6); padding: var(--s4); border: 2px solid var(--line-strong); background: var(--panel); }
.filter-row { display: grid; gap: var(--s2); }
.filter-row label { font-size: .78rem; font-weight: 800; text-transform: uppercase; }
.filter-row input { width: 100%; min-height: 2.75rem; padding: .55rem .7rem; border: 2px solid var(--line-strong); border-radius: 0; background: var(--bg); color: var(--text); }
.filter-count { margin: 0; color: var(--muted); font-size: .78rem; }
.endpoint-group { scroll-margin-top: var(--s4); }
.endpoint-list { display: grid; gap: var(--s4); }
.endpoint {
  min-width: 0;
  padding: var(--s4);
  border: 1px solid var(--line-strong);
  background: var(--panel);
  scroll-margin-top: var(--s4);
}
.endpoint:target, .endpoint.targeted { border-left: 4px solid var(--warn); background: var(--inset); }
.endpoint-head { display: flex; align-items: flex-start; gap: var(--s3); margin-bottom: var(--s3); }
.method { flex: none; min-width: 4.8rem; padding: .15rem .4rem; border: 1px solid currentColor; text-align: center; font-size: .72rem; font-weight: 800; }
.method-get { color: var(--ok); }
.method-post, .method-put, .method-patch { color: var(--warn); }
.method-delete { color: var(--error); }
.endpoint-path { min-width: 0; flex: 1; padding: 0; border: 0; background: transparent; overflow-wrap: anywhere; font-size: .92rem; }
.anchor-link { flex: none; min-width: 2.75rem; min-height: 2.75rem; display: grid; place-items: center; color: var(--muted); text-decoration: none; }
.endpoint-meta { display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: .35rem .8rem; margin: 0; font-size: .8rem; }
.endpoint-meta dt { color: var(--muted); }
.endpoint-meta dd { min-width: 0; margin: 0; }
.schema-list { columns: 2 18rem; }
.problem-grid { display: grid; gap: 1px; border: 1px solid var(--line-strong); background: var(--line-strong); }
.problem-grid > div { padding: var(--s3); background: var(--panel); break-inside: avoid; }
.problem-grid code { color: var(--error); }
.problem-type { display: block; color: var(--muted); font-size: .75rem; overflow-wrap: anywhere; }

.site-footer { padding-block: var(--s6); border-top: 2px solid var(--warn); background: var(--panel); }
.footer-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--s4); }
.footer-row p { margin: 0; color: var(--muted); font-size: .78rem; }

@media (min-width: 48rem) {
  .panel-grid.two, .status-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .link-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .trust-flow { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .rail-grid { grid-template-columns: minmax(0, 1fr) minmax(15rem, 19rem); align-items: start; }
  .rail { position: sticky; top: var(--s4); grid-column: 2; }
  .article { grid-column: 1; grid-row: 1; }
  .problem-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 64rem) {
  .hero-grid { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); align-items: start; }
  .link-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .panel-grid.three, .status-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .problem-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 47.99rem) {
  .header-row { align-items: flex-start; flex-direction: column; gap: 0; }
  .site-nav { width: 100%; border-top: 1px solid var(--line); }
  .site-nav a { padding-inline: .45rem; }
  .definition-list, .endpoint-meta { grid-template-columns: 1fr; gap: .1rem; }
  .definition-list dd, .endpoint-meta dd { margin-bottom: .55rem; }
  .endpoint-head { flex-wrap: wrap; }
  .endpoint-path { flex-basis: calc(100% - 6rem); }
  .schema-list { columns: 1; }
  .table-wrap { overflow: visible; border: 0; }
  table, tbody { display: block; }
  thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; }
  tbody tr { display: grid; margin-bottom: var(--s3); border: 1px solid var(--line-strong); }
  tbody th, tbody td { display: block; border: 0; }
  tbody th { border-bottom: 1px solid var(--line); background: var(--inset); color: var(--muted); }
}

@media (max-width: 24.4rem) {
  .wrap, .ribbon p { width: calc(100% - 2rem); }
  .page-tools { align-items: stretch; flex-direction: column; }
  .markdown-link { width: 100%; }
  .panel { padding: var(--s4); }
  .code-block { margin-inline: -.5rem; }
  .code-block figcaption { align-items: stretch; flex-direction: column; }
  .copy-btn { width: 100%; }
  .endpoint { padding: var(--s3); }
  .method { min-width: 4.2rem; }
}

@media print {
  :root { color-scheme: light; --bg: #fff; --panel: #fff; --inset: #f3f3f3; --line: #bbb; --line-strong: #333; --text: #000; --muted: #333; --ok: #000; --warn: #000; --error: #000; --focus: #000; }
  body { font-size: 10pt; }
  .site-header, .ribbon, .page-tools, .site-footer, .rail, .copy-btn, .api-tools { display: none !important; }
  .wrap { width: 100%; }
  .hero-grid, .rail-grid { display: block; }
  .section, .page-head { padding-block: 1rem; }
  .panel, .endpoint, .code-block { break-inside: avoid; }
  .code-block pre { white-space: pre-wrap; overflow: visible; }
  main a[href^="http"]::after { content: " (" attr(href) ")"; font-size: .8em; }
}