:root {
  --instrument-ink: #15130f;
  --instrument-paper: #f3eddf;
  --instrument-paper-bright: #fffaf0;
  --instrument-paper-deep: #ddd1bd;
  --instrument-cyan: #008fa3;
  --instrument-magenta: #b7245c;
  --instrument-amber: #b56a12;
  --instrument-violet: #6850a1;
  --instrument-green: #23745f;
  --instrument-danger: #a43333;
  --instrument-line: rgba(21, 19, 15, .28);
  --instrument-shadow: rgba(21, 19, 15, .16);
  --instrument-mono: "IBM Plex Mono", "Courier New", monospace;
  --instrument-serif: "Fraunces", Georgia, serif;
}

/* Grouped archive navigation. One compact strip replaces twelve equal-weight links. */
.archive-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
  min-width: 0;
  font-family: var(--instrument-mono);
  isolation: isolate;
}

.archive-nav__primary {
  display: flex;
  align-items: center;
  min-width: 0;
}

.archive-nav__groups {
  display: flex;
  align-items: center;
  min-width: 0;
}

.archive-nav a,
.archive-nav summary {
  color: var(--instrument-ink);
  font: 500 10px/1.2 var(--instrument-mono);
  letter-spacing: .065em;
  text-transform: uppercase;
  text-decoration: none;
}

.archive-nav__primary > a,
.archive-nav summary {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  padding: 0 8px;
  border-bottom: 2px solid transparent;
}

.archive-nav a:hover,
.archive-nav summary:hover,
.archive-nav a[aria-current="page"] {
  color: var(--instrument-cyan);
}

.archive-nav a[aria-current="page"] {
  border-bottom-color: currentColor;
}

.archive-nav details {
  position: relative;
}

.archive-nav summary {
  cursor: pointer;
  list-style: none;
  gap: 5px;
}

.archive-nav summary::-webkit-details-marker { display: none; }
.archive-nav summary::after { content: "⌄"; font-size: 12px; }
.archive-nav details[open] summary::after { content: "⌃"; }

.archive-nav__menu {
  position: absolute;
  top: calc(100% + 5px);
  right: 0;
  z-index: 80;
  display: grid;
  min-width: 230px;
  border: 1px solid var(--instrument-ink);
  border-top: 4px solid var(--group-accent, var(--instrument-cyan));
  background:
    repeating-linear-gradient(0deg, transparent 0 23px, rgba(21, 19, 15, .035) 24px),
    var(--instrument-paper-bright);
  box-shadow: 8px 8px 0 var(--instrument-shadow);
}

.archive-nav__menu a {
  display: grid;
  grid-template-columns: 16px 1fr;
  gap: 8px;
  align-items: center;
  min-height: 42px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--instrument-line);
  white-space: normal;
}

.archive-nav__menu a:last-child { border-bottom: 0; }
.archive-nav__menu a:hover,
.archive-nav__menu a:focus-visible {
  color: var(--instrument-paper-bright);
  background: var(--instrument-ink);
}

.archive-nav__sigil { color: var(--group-accent, var(--instrument-cyan)); font-size: 14px; }
.archive-nav details[data-group="reference"] { --group-accent: var(--instrument-violet); }
.archive-nav details[data-group="evidence"] { --group-accent: var(--instrument-green); }
.archive-nav details[data-group="experiments"] { --group-accent: var(--instrument-magenta); }
.archive-nav details[data-group="archive"] { --group-accent: var(--instrument-amber); }

.site-chrome:has(.archive-nav details[open]),
.site-chrome .cait-masthead:has(.archive-nav details[open]) {
  z-index: 700 !important;
}

.archive-nav :focus-visible,
.instrument-page :focus-visible,
.truth-register :focus-visible {
  outline: 3px solid var(--instrument-cyan);
  outline-offset: 3px;
}

/* Shared instrumentarium frame for new public experiments. */
html:has(.instrument-page) {
  color: var(--instrument-ink);
  background: var(--instrument-paper);
}

body.instrument-page {
  min-width: 0;
  margin: 0;
  color: var(--instrument-ink);
  background:
    radial-gradient(circle at 7% 12%, rgba(0, 143, 163, .12), transparent 21rem),
    radial-gradient(circle at 91% 28%, rgba(183, 36, 92, .11), transparent 24rem),
    repeating-linear-gradient(90deg, transparent 0 49px, rgba(21, 19, 15, .024) 50px),
    linear-gradient(101deg, var(--instrument-paper-bright), var(--instrument-paper) 53%, #e8decf);
  font-family: var(--instrument-serif);
  overflow-x: hidden;
}

body.instrument-page::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .28;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180' viewBox='0 0 180 180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.12'/%3E%3C/svg%3E");
}

.instrument-masthead {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 2px solid var(--instrument-ink);
  background: rgba(255, 250, 240, .96);
}

.instrument-masthead__inner {
  width: min(100% - 32px, 1220px);
  min-height: 62px;
  margin: auto;
  display: flex;
  align-items: center;
  gap: 18px;
}

.instrument-wordmark {
  flex: 0 0 auto;
  color: var(--instrument-ink);
  font: 650 21px/1 var(--instrument-serif);
  letter-spacing: -.03em;
  text-decoration: none;
}

.instrument-wordmark small {
  display: block;
  margin-top: 3px;
  font: 500 8px/1.2 var(--instrument-mono);
  letter-spacing: .13em;
  text-transform: uppercase;
}

.instrument-main {
  width: min(100% - 36px, 1160px);
  margin: 0 auto;
  padding: 54px 0 100px;
}

.instrument-kicker,
.receipt-label,
.claim-meta,
.model-facts,
.microcopy {
  font-family: var(--instrument-mono);
  letter-spacing: .075em;
}

.instrument-kicker {
  margin: 0 0 14px;
  color: var(--instrument-cyan);
  font-size: 11px;
  text-transform: uppercase;
}

.instrument-title {
  max-width: 13ch;
  margin: 0;
  font-size: clamp(48px, 9vw, 116px);
  font-weight: 650;
  line-height: .84;
  letter-spacing: -.075em;
}

.instrument-title em {
  color: var(--instrument-magenta);
  font-style: normal;
}

.instrument-lede {
  max-width: 58ch;
  margin: 26px 0 0;
  font-size: clamp(17px, 2.2vw, 23px);
  line-height: 1.5;
}

.instrument-rule {
  display: grid;
  grid-template-columns: 90px 1fr auto;
  gap: 14px;
  align-items: center;
  margin: 34px 0;
  font: 500 10px/1.4 var(--instrument-mono);
  letter-spacing: .1em;
  text-transform: uppercase;
}

.instrument-rule::before { content: ""; height: 4px; background: var(--instrument-magenta); }
.instrument-rule::after { content: ""; height: 1px; background: var(--instrument-ink); }

.instrument-section {
  padding: 54px 0;
  border-top: 1px solid var(--instrument-ink);
}

.instrument-section h2 {
  margin: 0 0 14px;
  font-size: clamp(31px, 5vw, 58px);
  line-height: .98;
  letter-spacing: -.045em;
}

.instrument-section h3 { font-size: 22px; line-height: 1.1; }
.instrument-section p,
.instrument-section li { font-size: 16px; line-height: 1.62; }

.instrument-split {
  display: grid;
  grid-template-columns: minmax(0, .75fr) minmax(0, 1.25fr);
  gap: clamp(28px, 7vw, 88px);
  align-items: start;
}

.instrument-plate {
  position: relative;
  border: 2px solid var(--instrument-ink);
  background: var(--instrument-paper-bright);
  box-shadow: 11px 11px 0 var(--instrument-shadow);
}

.instrument-plate::before {
  content: attr(data-plate);
  position: absolute;
  top: -11px;
  left: 18px;
  padding: 3px 8px;
  color: var(--instrument-paper-bright);
  background: var(--instrument-ink);
  font: 500 9px/1.4 var(--instrument-mono);
  letter-spacing: .11em;
  text-transform: uppercase;
}

.instrument-warning {
  border-left: 5px solid var(--instrument-amber);
  padding: 13px 16px;
  background: rgba(181, 106, 18, .09);
  font: 500 12px/1.55 var(--instrument-mono);
}

.instrument-danger {
  border-left-color: var(--instrument-danger);
  background: rgba(164, 51, 51, .08);
}

.instrument-button,
.instrument-select,
.instrument-input,
.instrument-textarea {
  min-height: 44px;
  border: 1px solid var(--instrument-ink);
  border-radius: 0;
  color: var(--instrument-ink);
  background: var(--instrument-paper-bright);
  font: 500 13px/1.4 var(--instrument-mono);
}

.instrument-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 15px;
  cursor: pointer;
  text-decoration: none;
  box-shadow: 3px 3px 0 var(--instrument-ink);
  transition: transform .15s ease, box-shadow .15s ease, background-color .15s ease;
}

.instrument-button:hover:not(:disabled) {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 var(--instrument-magenta);
}

.instrument-button--ink { color: var(--instrument-paper-bright); background: var(--instrument-ink); }
.instrument-button--danger { color: var(--instrument-paper-bright); background: var(--instrument-danger); }
.instrument-button:disabled { cursor: not-allowed; opacity: .48; box-shadow: none; }
.instrument-select,
.instrument-input,
.instrument-textarea { width: 100%; box-sizing: border-box; padding: 10px 12px; }
.instrument-textarea { min-height: 126px; resize: vertical; }

.instrument-actions { display: flex; flex-wrap: wrap; gap: 11px; align-items: center; }
.instrument-field { display: grid; gap: 7px; margin-bottom: 14px; }
.instrument-field > span { font: 500 11px/1.4 var(--instrument-mono); letter-spacing: .05em; }

/* Homepage truth register: mechanism and runtime health are intentionally separate columns. */
.truth-register {
  max-width: 980px;
  margin: 12px auto 72px;
  padding: 0 24px;
  color: var(--instrument-ink);
}

.truth-register__head {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: end;
  padding: 30px 0 18px;
  border-top: 5px solid var(--instrument-ink);
}

.truth-register__head h2 {
  max-width: 13ch;
  margin: 0;
  font: 650 clamp(34px, 6vw, 68px)/.92 var(--instrument-serif);
  letter-spacing: -.055em;
}

.truth-register__stamp {
  max-width: 240px;
  padding: 11px;
  border: 2px solid var(--instrument-magenta);
  color: var(--instrument-magenta);
  font: 600 10px/1.5 var(--instrument-mono);
  letter-spacing: .08em;
  text-transform: uppercase;
  transform: rotate(-1.5deg);
}

.truth-register__lanes { display: grid; grid-template-columns: .8fr 1.2fr; border: 1px solid var(--instrument-ink); }
.truth-register__lane { min-width: 0; }
.truth-register__lane + .truth-register__lane { border-left: 1px solid var(--instrument-ink); }
/* `color` needs !important here to survive the blanket
   `h1,h2,h3,h4,h5,h6 { color: var(--color-heading) !important }` in
   _ds/bw-paper/styles.css (and its html[data-theme] twin in theme.css). Without
   it this heading is painted in the heading ink ON TOP OF its own ink-filled
   chip — identical foreground and background, i.e. invisible text, on every
   theme including light. Any future heading that sits on its own dark surface
   needs the same guard. */
.truth-register__lane > h3 { margin: 0; padding: 13px 15px; color: var(--instrument-paper-bright) !important; background: var(--instrument-ink); font: 500 11px/1.3 var(--instrument-mono); letter-spacing: .1em; text-transform: uppercase; }
.truth-claim { padding: 15px; border-bottom: 1px solid var(--instrument-line); }
.truth-claim:last-child { border-bottom: 0; }
.truth-claim strong { display: block; margin-bottom: 5px; font-size: 15px; }
.truth-claim p { margin: 0; font-size: 13px; line-height: 1.55; }
.claim-meta { display: block; margin-top: 8px; color: color-mix(in srgb, var(--instrument-ink) 72%, var(--instrument-paper)); font-size: 9px; line-height: 1.5; text-transform: uppercase; }
.truth-claim[data-state="degraded"] { border-left: 4px solid var(--instrument-danger); }
.truth-claim[data-state="partial"] { border-left: 4px solid var(--instrument-amber); }
.truth-claim[data-state="ready"] { border-left: 4px solid var(--instrument-green); }

/* Packet Peon */
.peon-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(310px, .95fr);
  gap: clamp(32px, 7vw, 90px);
  align-items: center;
  min-height: 580px;
}

.peon-chain { padding: 22px; }
.peon-chain ol { margin: 0; padding: 0; list-style: none; counter-reset: peon; }
.peon-chain li { counter-increment: peon; display: grid; grid-template-columns: 34px 1fr; gap: 10px; padding: 12px 0; border-bottom: 1px solid var(--instrument-line); }
.peon-chain li::before { content: counter(peon, decimal-leading-zero); color: var(--instrument-magenta); font: 600 11px/1.5 var(--instrument-mono); }
.peon-chain li:last-child { border-bottom: 0; }

.packet-workbench { display: grid; grid-template-columns: minmax(0, .86fr) minmax(0, 1.14fr); border: 2px solid var(--instrument-ink); }
.packet-controls { padding: 24px; border-right: 1px solid var(--instrument-ink); background: rgba(255, 250, 240, .8); }
.packet-inspector { min-width: 0; padding: 24px; background: #171713; color: #f6ecdb; }
.packet-inspector pre { max-height: 360px; margin: 12px 0 0; padding: 14px; overflow: auto; white-space: pre-wrap; overflow-wrap: anywhere; border: 1px solid rgba(246, 236, 219, .34); font: 11px/1.6 var(--instrument-mono); }
.packet-verdict { min-height: 1.5em; margin: 10px 0 0; color: #8ed8c7; font: 500 11px/1.5 var(--instrument-mono); }

.model-ledger { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr); border: 2px solid var(--instrument-ink); }
.model-mode {
  min-width: 0;
  padding: clamp(22px, 4vw, 38px);
  overflow-wrap: anywhere;
}
.model-mode + .model-mode { border-left: 1px solid var(--instrument-ink); background: #1b1817; color: var(--instrument-paper-bright); }
.model-mode h3 { margin: 0 0 6px; font: 650 32px/1 var(--instrument-serif); letter-spacing: -.04em; }
.model-mode__state { display: inline-block; margin: 0 0 18px; padding: 4px 7px; border: 1px solid currentColor; font: 600 9px/1.3 var(--instrument-mono); letter-spacing: .08em; text-transform: uppercase; }
.model-facts { margin: 18px 0; padding: 0; list-style: none; font-size: 10px; line-height: 1.65; }
.model-facts li { padding: 5px 0; border-bottom: 1px solid currentColor; }
.consent-line { display: grid; grid-template-columns: 20px 1fr; gap: 10px; align-items: start; margin: 18px 0; font: 500 11px/1.55 var(--instrument-mono); }
.consent-line input { width: 18px; height: 18px; accent-color: var(--instrument-cyan); }
.model-progress { width: 100%; height: 14px; border: 1px solid currentColor; border-radius: 0; appearance: none; }
.model-progress::-webkit-progress-bar { background: transparent; }
.model-progress::-webkit-progress-value { background: var(--instrument-cyan); }
.model-progress::-moz-progress-bar { background: var(--instrument-cyan); }
.model-status { min-height: 3.3em; margin: 10px 0; font: 500 11px/1.55 var(--instrument-mono); }

.peon-result { padding: 0; overflow: hidden; }
.peon-result__head { display: flex; justify-content: space-between; gap: 16px; padding: 15px 18px; color: var(--instrument-paper-bright); background: var(--instrument-ink); }
.peon-result__body { min-height: 190px; padding: 22px; }
.peon-result__body pre { margin: 0; white-space: pre-wrap; overflow-wrap: anywhere; font: 14px/1.7 var(--instrument-mono); }
.receipt-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--instrument-ink); }
.receipt-grid > div { min-width: 0; padding: 12px 15px; border-right: 1px solid var(--instrument-line); border-bottom: 1px solid var(--instrument-line); }
.receipt-grid dt { margin-bottom: 4px; color: color-mix(in srgb, var(--instrument-ink) 70%, var(--instrument-paper)); font: 600 9px/1.4 var(--instrument-mono); letter-spacing: .08em; text-transform: uppercase; }
.receipt-grid dd { margin: 0; overflow-wrap: anywhere; font: 500 10px/1.5 var(--instrument-mono); }

/* THE POUR / clean-room receipt reliquary */
.reliquary-stage {
  position: relative;
  min-height: 610px;
  overflow: hidden;
  border: 2px solid var(--instrument-ink);
  color: #efe6d7;
  background:
    repeating-linear-gradient(90deg, transparent 0 39px, rgba(255, 255, 255, .025) 40px),
    repeating-linear-gradient(0deg, transparent 0 39px, rgba(255, 255, 255, .02) 40px),
    #11110f;
  box-shadow: 12px 12px 0 rgba(104, 80, 161, .26);
}

.reliquary-stage canvas { display: block; width: 100%; height: 500px; touch-action: none; }
.reliquary-stage__meta { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding: 14px 16px; border-top: 1px solid rgba(239, 230, 215, .35); font: 500 10px/1.5 var(--instrument-mono); }
.reliquary-controls { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-top: 18px; }
.reliquary-note { max-width: 70ch; color: color-mix(in srgb, var(--instrument-ink) 68%, var(--instrument-paper)); font: 500 11px/1.6 var(--instrument-mono); }
.gallery-index { display: grid; grid-template-columns: .6fr 1.4fr; border-top: 2px solid var(--instrument-ink); }
.gallery-index__number { padding: 22px; color: var(--instrument-paper-bright); background: var(--instrument-magenta); font: 650 clamp(60px, 10vw, 120px)/.8 var(--instrument-serif); letter-spacing: -.08em; }
.gallery-index__copy { padding: clamp(22px, 5vw, 54px); }

.compat-note { max-width: 640px; margin: 18vh auto; padding: 28px; }

@media (max-width: 1040px) {
  .instrument-masthead__inner { align-items: flex-start; flex-direction: column; gap: 3px; padding: 10px 0; }
  .archive-nav { width: 100%; margin-left: 0; }
  .archive-nav__primary,
  .archive-nav__groups { overflow-x: auto; scrollbar-width: none; }
  .archive-nav__primary::-webkit-scrollbar,
  .archive-nav__groups::-webkit-scrollbar { display: none; }
  .archive-nav__primary > a,
  .archive-nav details { flex: 0 0 auto; }
  .peon-hero { min-height: auto; padding: 36px 0; }
}

@media (max-width: 760px) {
  .archive-nav { display: grid; gap: 0; }
  .site-chrome .masthead-nav.archive-nav {
    display: grid !important;
    grid-template-columns: 1fr;
    align-items: stretch !important;
    overflow: visible !important;
    white-space: normal;
  }
  .archive-nav__primary,
  .archive-nav__groups { justify-content: space-between; }
  .archive-nav__primary > a,
  .archive-nav summary { min-height: 34px; padding: 0 5px; font-size: 11px; letter-spacing: .035em; }
  .archive-nav__menu a { min-height: 44px; font-size: 11px; }
  .archive-nav__menu { position: fixed; top: 130px; right: 14px; left: 14px; min-width: 0; max-height: calc(100vh - 152px); overflow: auto; }
  .instrument-main { width: min(100% - 28px, 1160px); padding-top: 32px; }
  .instrument-split,
  .peon-hero,
  .packet-workbench,
  .model-ledger,
  .truth-register__lanes,
  .gallery-index { grid-template-columns: 1fr; }
  .packet-controls,
  .model-mode + .model-mode,
  .truth-register__lane + .truth-register__lane { border-left: 0; border-top: 1px solid var(--instrument-ink); }
  .truth-register__head { grid-template-columns: 1fr; }
  .truth-register__stamp { justify-self: start; }
  .receipt-grid { grid-template-columns: 1fr; }
  .reliquary-controls { grid-template-columns: 1fr; }
  .reliquary-stage { min-height: 520px; }
  .reliquary-stage canvas { height: 410px; }
  .gallery-index__number { padding: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}

/* Canonical CAIT archive header. Shared JS replaces page-local mastheads with
   this one shell; component tokens own contrast instead of inheriting themed
   global link colors. */
.cait-archive-header,
.cait-archive-header::before,
.cait-archive-header::after,
.cait-archive-header *,
.cait-archive-header *::before,
.cait-archive-header *::after {
  box-sizing: border-box !important;
}

/* support.js hydrates x-dc into #dc-root after initial parsing. React owns
   that subtree, so the canonicalizer stays outside it and suppresses only the
   legacy masthead that hydration may restore. */
body.cait-canonical-header-ready #dc-root .cait-masthead,
body.cait-canonical-header-ready #dc-root .phyx-head,
body.cait-canonical-header-ready #dc-root .cait-archive-header,
body.cait-canonical-header-ready x-dc .cait-masthead,
body.cait-canonical-header-ready x-dc .phyx-head,
body.cait-canonical-header-ready x-dc .cait-archive-header,
body.cait-canonical-header-ready .room-frame > .cait-masthead {
  display: none !important;
}

.cait-archive-header {
  --archive-header-surface: var(--color-bg, #f7f2e8);
  --archive-header-ink: var(--color-text, #15130f);
  --archive-header-line: var(--color-divider, rgba(21, 19, 15, .28));
  --archive-header-active: var(--color-accent, #008fa3);
  --archive-menu-surface: #101218;
  --archive-menu-ink: #f4f6ff;
  --archive-menu-muted: #c7cddd;
  --archive-menu-hover: #242936;
  --archive-menu-focus: #53e6a6;
  position: sticky !important;
  top: 0 !important;
  z-index: 700 !important;
  display: block !important;
  box-sizing: border-box !important;
  width: 100% !important;
  max-width: none !important;
  min-height: 58px;
  margin: 0 !important;
  padding: 0 !important;
  overflow: visible !important;
  color: var(--archive-header-ink) !important;
  background: var(--archive-header-surface) !important;
  border: 0 !important;
  border-bottom: 1px solid var(--archive-header-line) !important;
  font-family: var(--instrument-mono) !important;
  backdrop-filter: none !important;
}

/* One compact disclosure owns every optional page control. The feature
   scripts still own their buttons; this shell only controls presentation. */
.cait-utility-dock {
  position: fixed !important;
  right: max(14px, env(safe-area-inset-right)) !important;
  bottom: max(14px, env(safe-area-inset-bottom)) !important;
  top: auto !important;
  left: auto !important;
  z-index: 900 !important;
  display: flex !important;
  width: auto !important;
  max-width: min(168px, calc(100vw - 28px)) !important;
  max-height: calc(100dvh - 28px) !important;
  margin: 0 !important;
  padding: 0 !important;
  flex-direction: column !important;
  align-items: stretch !important;
  gap: 6px !important;
  overflow: visible !important;
  isolation: isolate;
  pointer-events: none;
}
.cait-utility-dock.is-open {
  width: 154px !important;
  padding: 6px !important;
  overflow-y: auto !important;
  border: 1px solid var(--color-divider, rgba(17, 17, 17, .28));
  background: var(--color-bg, #fdfdfc);
  box-shadow: 5px 5px 0 color-mix(in srgb, var(--color-text, #111) 16%, transparent);
}
.cait-utility-dock:not(.is-open) > :not(.cait-controls-toggle) {
  display: none !important;
}
.cait-utility-dock > button,
.cait-utility-dock .cait-controls-toggle {
  position: relative !important;
  inset: auto !important;
  right: auto !important;
  bottom: auto !important;
  box-sizing: border-box !important;
  width: 100% !important;
  min-width: 0 !important;
  max-width: 100% !important;
  min-height: 44px !important;
  margin: 0 !important;
  overflow: hidden !important;
  white-space: nowrap !important;
  pointer-events: auto;
}
.cait-utility-dock .cait-controls-toggle {
  order: -100 !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 7px !important;
  padding: 8px 10px !important;
  border: 1px solid var(--color-divider, rgba(17, 17, 17, .28)) !important;
  border-radius: 0 !important;
  background: var(--color-bg, #fdfdfc) !important;
  color: var(--color-text, #111) !important;
  box-shadow: none !important;
  font: 600 10px/1 'IBM Plex Mono', Consolas, monospace !important;
  letter-spacing: .1em !important;
  text-transform: uppercase;
  cursor: pointer;
}
.cait-utility-dock:not(.is-open) .cait-controls-toggle {
  width: auto !important;
}
.cait-utility-dock .cait-controls-toggle:focus-visible {
  outline: 2px solid var(--color-accent, #008fa3);
  outline-offset: 3px;
}

/* Preserve scrolling while replacing the native bar with the top prism. */
html,
body { scrollbar-width: none; }
html::-webkit-scrollbar,
body::-webkit-scrollbar { width: 0; height: 0; display: none; }
.cait-progress { z-index: 1000 !important; }

.cait-archive-header__inner {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  box-sizing: border-box;
  width: min(calc(100% - 32px), 1240px);
  min-height: 58px;
  margin: 0 auto;
  padding: 7px 0;
}

html[data-theme] .cait-archive-header__wordmark,
.cait-archive-header__wordmark {
  display: grid;
  flex: 0 0 auto;
  gap: 3px;
  color: var(--archive-header-ink) !important;
  font-family: var(--instrument-mono);
  text-decoration: none;
}

.cait-archive-header__name {
  color: inherit;
  font: 600 17px/1 var(--instrument-mono);
  letter-spacing: .12em;
}

.cait-archive-header__air {
  color: var(--archive-header-active);
  font-family: "Noto Sans Symbols 2", "Segoe UI Symbol", sans-serif;
  font-weight: 400;
}

.cait-archive-header__wordmark small {
  color: color-mix(in srgb, var(--archive-header-ink) 64%, transparent);
  font: 500 8px/1.2 var(--instrument-mono);
  letter-spacing: .1em;
  text-transform: uppercase;
}

.cait-archive-header__alpha {
  display: inline-flex;
  min-height: 24px;
  align-items: center;
  padding: 0 7px;
  border: 1px solid var(--archive-header-line);
  color: var(--archive-header-ink);
  font: 600 8px/1 var(--instrument-mono);
  letter-spacing: .14em;
  text-transform: uppercase;
}

.cait-archive-header .archive-nav {
  position: static;
  display: flex !important;
  width: auto;
  min-width: 0;
  justify-content: flex-end;
  margin: 0 0 0 auto !important;
  gap: 1px;
  overflow: visible;
}

.cait-archive-header .archive-nav__primary,
.cait-archive-header .archive-nav__groups {
  display: flex;
  min-width: 0;
  align-items: center;
  overflow: visible;
}

html[data-theme] .cait-archive-header .archive-nav__primary > a,
.cait-archive-header .archive-nav__primary > a,
.cait-archive-header .archive-nav summary {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  padding: 0 7px;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--archive-header-ink) !important;
  background: transparent !important;
  font: 500 9px/1.2 var(--instrument-mono);
  letter-spacing: .055em;
  text-transform: uppercase;
  text-decoration: none !important;
  white-space: nowrap;
}

.cait-archive-header .archive-nav__primary > a:hover,
.cait-archive-header .archive-nav summary:hover {
  color: var(--archive-header-ink) !important;
  border-bottom-color: color-mix(in srgb, var(--archive-header-active) 68%, transparent);
}

.cait-archive-header .archive-nav__primary > a[aria-current="page"],
.cait-archive-header .archive-nav details.has-current > summary {
  color: var(--archive-header-ink) !important;
  border-bottom-color: var(--archive-header-active);
}

.cait-archive-header .archive-nav details { position: relative; }
.cait-archive-header .archive-nav summary { cursor: pointer; list-style: none; }
.cait-archive-header .archive-nav summary::-webkit-details-marker { display: none; }
.cait-archive-header .archive-nav summary::after { content: "⌄"; margin-left: 4px; font-size: 11px; }
.cait-archive-header .archive-nav details[open] > summary::after { content: "⌃"; }

.cait-archive-header .archive-nav__menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  left: auto;
  z-index: 20;
  display: grid;
  box-sizing: border-box;
  width: max-content;
  min-width: 236px;
  max-width: min(320px, calc(100vw - 24px));
  overflow: auto;
  border: 1px solid #3a4050;
  border-top: 4px solid var(--group-accent, var(--archive-header-active));
  color: var(--archive-menu-ink);
  background: var(--archive-menu-surface);
  background-image: repeating-linear-gradient(0deg, transparent 0 43px, rgba(244, 246, 255, .045) 44px);
  box-shadow: 8px 8px 0 rgba(5, 6, 9, .34);
}

html[data-theme] .cait-archive-header .archive-nav__menu a,
.cait-archive-header .archive-nav__menu a {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  gap: 9px;
  align-items: center;
  min-height: 44px;
  padding: 9px 12px;
  border: 0;
  border-bottom: 1px solid #343948;
  color: var(--archive-menu-ink) !important;
  background: transparent !important;
  font: 500 10px/1.35 var(--instrument-mono);
  letter-spacing: .07em;
  text-transform: uppercase;
  text-decoration: none !important;
  white-space: normal;
}

.cait-archive-header .archive-nav__menu a:last-child { border-bottom: 0; }
html[data-theme] .cait-archive-header .archive-nav__menu a:hover,
.cait-archive-header .archive-nav__menu a:hover,
html[data-theme] .cait-archive-header .archive-nav__menu a:focus-visible,
.cait-archive-header .archive-nav__menu a:focus-visible {
  color: var(--archive-menu-ink) !important;
  background: var(--archive-menu-hover) !important;
}

.cait-archive-header .archive-nav__menu a[aria-current="page"] {
  box-shadow: inset 3px 0 0 var(--group-accent, var(--archive-header-active));
}

.cait-archive-header .archive-nav__sigil {
  color: var(--archive-menu-ink) !important;
  font-size: 13px;
  text-align: center;
}

.cait-archive-header :focus-visible {
  outline: 3px solid var(--archive-header-active);
  outline-offset: 2px;
}

.cait-archive-header .archive-nav__menu :focus-visible {
  outline-color: var(--archive-menu-focus);
  outline-offset: -3px;
}

@media (max-width: 920px) {
  .cait-archive-header { min-height: 122px; }
  .cait-archive-header__inner {
    width: calc(100% - 24px);
    height: 122px;
    min-height: 122px;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-rows: 42px 68px;
    gap: 0 10px;
    padding: 6px 0;
  }
  .cait-archive-header__alpha { justify-self: end; }
  .cait-archive-header .archive-nav {
    grid-column: 1 / -1;
    display: grid !important;
    grid-template-rows: 34px 34px;
    width: 100%;
    margin: 0 !important;
    align-self: end;
  }
  .cait-archive-header .archive-nav__primary {
    justify-content: space-between;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: none;
  }
  .cait-archive-header .archive-nav__groups {
    justify-content: space-between;
    overflow: visible;
  }
  .cait-archive-header .archive-nav__primary::-webkit-scrollbar,
  .cait-archive-header .archive-nav__groups::-webkit-scrollbar { display: none; }
  .cait-archive-header .archive-nav__primary > a,
  .cait-archive-header .archive-nav summary { min-height: 32px; padding: 0 5px; }
  .cait-archive-header .archive-nav details { position: relative; flex: 0 0 auto; }
  .cait-archive-header .archive-nav__menu {
    top: calc(100% + 1px);
    right: 0;
    left: auto;
    width: min(280px, calc(100vw - 24px));
    min-width: min(236px, calc(100vw - 24px));
    max-width: calc(100vw - 24px);
    max-height: calc(100svh - 134px);
    box-shadow: 0 8px 0 rgba(5, 6, 9, .3);
  }
  .cait-archive-header .archive-nav details[data-group="reference"] > .archive-nav__menu {
    right: auto;
    left: 0;
  }
  .cait-archive-header .archive-nav details[data-group="evidence"] > .archive-nav__menu {
    right: auto;
    left: 50%;
    transform: translateX(-50%);
  }
  body.reading-page .cait-utility-dock { top: 128px !important; }
}

@media (max-width: 430px) {
  .cait-archive-header .archive-nav__primary > a,
  .cait-archive-header .archive-nav summary { padding-right: 4px; padding-left: 4px; font-size: 8px; letter-spacing: .025em; }
  .cait-archive-header__wordmark small { font-size: 7px; }
}

@media (prefers-reduced-motion: reduce) {
  .cait-archive-header *,
  .cait-archive-header *::before,
  .cait-archive-header *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}