/* skeelx.com — DATUM system (docs/REDESIGN-SPEC.md). Brand tokens are canonical in brand/tokens.css.
   The legacy token names below are a public API: 376 inline styles and 60 SVG diagrams call them. Never rename. */

:root {
  /* palette — frozen names */
  --ink: #0F1115;
  --paper: #F6F5F1;
  --bone: #EDEBE4;
  --gunmetal: #565B64;
  --steel: #7E8795;
  --line: #DDDACF;
  --line-dark: #2A2E36;
  --beam: #FF4D00;
  --beam-deep: #C93D02;
  --sans: "Instrument Sans", -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", "SF Mono", Menlo, Consolas, monospace;

  /* additions — same family, no new hue */
  --ink-2: #181B21;
  --construct: rgb(15 17 21 / 0.2);
  --datum: rgb(15 17 21 / 0.42);
  --fog: #A9AFB8;   /* body text on ink: 8.6:1 */

  /* semantic scope: paper (redefined for ink surfaces below) */
  --bg: var(--paper);
  --bg-2: var(--bone);
  --fg: var(--ink);
  --fg-2: var(--gunmetal);
  --rule: var(--line);
  --rule-strong: var(--ink);
  --accent: var(--beam-deep);
  --focus: var(--beam-deep);

  /* type */
  --t-hero: clamp(3.5rem, 0.4rem + 10.6vw, 11rem);
  --t-display: clamp(2.5rem, 1.4rem + 4.6vw, 5.25rem);
  --t-display-s: clamp(2.125rem, 1.3rem + 3vw, 4rem);
  --t-closer: clamp(2.5rem, 1rem + 4.8vw, 5.75rem);
  --t-title: clamp(1.875rem, 1.2rem + 2.6vw, 3.5rem);
  --t-index: clamp(1.625rem, 1rem + 2vw, 2.75rem);
  --t-head: clamp(1.1875rem, 1rem + 0.6vw, 1.5rem);
  --t-lede: clamp(1.125rem, 1rem + 0.5vw, 1.375rem);
  --t-small: 0.9375rem;
  --t-mono: 0.75rem;
  --t-note: 0.6875rem;

  /* grid & space */
  --max: 1180px;
  --margin: clamp(1.25rem, 4vw, 2.5rem);
  --gutter: clamp(0.75rem, 0.3rem + 1.35vw, 1.5rem);
  --head-h: 56px;
  --space-section: clamp(4.5rem, 3rem + 6vw, 9rem);
  --space-block: clamp(2rem, 1.4rem + 2.4vw, 3.5rem);
  --measure: 62ch;
  --radius: 0;

  /* motion */
  --cut: -52.05deg; /* the wordmark's rising stroke: atan(100 / 78) */
  --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
  --ease-draft: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-1: 160ms;
  --dur-2: 220ms;

  /* marks: the rising stroke of the wordmark x, as a tick; and the full x */
  --tick: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='-13 -13 104 126'%3E%3Cpath d='M0 100L78 0' stroke='%23FF4D00' stroke-width='26' stroke-linecap='round'/%3E%3C/svg%3E");
  --xmark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='-13 -13 104 126'%3E%3Cpath d='M0 0L78 100' stroke='%230F1115' stroke-width='18' stroke-linecap='round'/%3E%3Cpath d='M0 100L78 0' stroke='%23FF4D00' stroke-width='18' stroke-linecap='round'/%3E%3C/svg%3E");
  --xmark-ink: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='-13 -13 104 126'%3E%3Cpath d='M0 0L78 100' stroke='%23F6F5F1' stroke-width='18' stroke-linecap='round'/%3E%3Cpath d='M0 100L78 0' stroke='%23FF4D00' stroke-width='18' stroke-linecap='round'/%3E%3C/svg%3E");

  color-scheme: light;
}
@media (min-width: 1024px) { :root { --head-h: 64px; } }

/* ink surfaces: every descendant rule is complete by construction */
.on-ink {
  --bg: var(--ink);
  --bg-2: var(--ink-2);
  --fg: var(--paper);
  --fg-2: var(--steel);
  --rule: var(--line-dark);
  --rule-strong: var(--paper);
  --accent: var(--beam);
  --focus: var(--beam);
  --datum: rgb(246 245 241 / 0.4);
}

/* ================================================================ base */

* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
body {
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.62;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
main { counter-reset: sec fig; display: block; }
strong { font-weight: 600; color: var(--fg); }
em { font-style: italic; }
p { max-width: var(--measure); text-wrap: pretty; }
h1, h2, h3, h4, h5 { text-wrap: balance; }
::selection { background: var(--ink); color: var(--paper); }

.vh {
  position: absolute !important; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; border: 0;
}
.skip {
  position: absolute; left: var(--margin); top: 0.5rem; z-index: 100;
  padding: 0.6rem 0.9rem; background: var(--paper); color: var(--ink);
  border: 1px solid var(--ink); font-weight: 560; text-decoration: none;
  transform: translateY(-160%);
}
.skip:focus { transform: none; }

:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; }
:focus:not(:focus-visible) { outline: none; }

.wrap { max-width: var(--max); margin-inline: auto; padding-inline: var(--margin); }

/* ================================================================ type */

h1 {
  font-size: var(--t-display); line-height: 0.95; letter-spacing: -0.035em;
  font-weight: 560; font-stretch: 86%;
}
h2 {
  font-size: var(--t-title); line-height: 1.02; letter-spacing: -0.025em;
  font-weight: 560; font-stretch: 90%;
}
h3 { font-size: var(--t-head); line-height: 1.2; letter-spacing: -0.012em; font-weight: 560; }
.lede { font-size: var(--t-lede); line-height: 1.45; letter-spacing: -0.005em; color: var(--fg-2); max-width: 60ch; }
.muted { color: var(--fg-2); }
.nm { text-transform: none; letter-spacing: 0.04em; } /* the name is always lowercase, even in uppercase labels */
.mono { font-family: var(--mono); font-size: 0.8125rem; letter-spacing: 0.06em; font-variant-numeric: tabular-nums; }
.idx {
  font-family: var(--mono); font-size: var(--t-mono); font-weight: 500; letter-spacing: 0.08em;
  color: var(--accent); font-variant-numeric: tabular-nums; text-transform: uppercase;
}

.eyebrow {
  font-family: var(--mono); font-size: var(--t-mono); font-weight: 500; line-height: 1.3;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--fg-2);
  display: flex; align-items: flex-start; gap: 0.7rem; margin-bottom: 1.25rem;
}
.eyebrow::before {
  content: ""; flex: none; width: 9px; height: 11px; margin-top: 0.125rem;
  background: var(--tick) center / contain no-repeat;
}
/* numbered sections: the eyebrow prints its sheet zone first — "02 / label" */
.section:has(> .wrap > .eyebrow) { counter-increment: sec; }
.section > .wrap > .eyebrow::before {
  content: counter(sec, decimal-leading-zero);
  content: counter(sec, decimal-leading-zero) / "";
  width: auto; height: auto; color: var(--accent);
  padding-right: 1.35rem; background-position: right 0.1rem center; background-size: 9px 11px; margin-top: 0;
}
.pillar { counter-increment: sec; }
main:not(:has(> .section:not(.on-ink) > .wrap > .eyebrow, > .pillar)) > .section.on-ink { counter-increment: none; }
main:not(:has(> .section:not(.on-ink) > .wrap > .eyebrow, > .pillar)) > .section.on-ink > .wrap > .eyebrow::before {
  content: ""; width: 9px; height: 11px; padding-right: 0; background-position: center; background-size: contain; margin-top: 0.125rem;
}

/* ================================================================ links & buttons */

.text-link {
  font-weight: 500; color: var(--fg);
  text-decoration: underline 2px var(--beam);
  text-underline-offset: 0.28em; text-decoration-skip-ink: none;
  transition: color var(--dur-1) var(--ease), text-decoration-thickness var(--dur-1) var(--ease);
}
.text-link:hover { color: var(--accent); text-decoration-thickness: 3px; }
.on-ink .text-link:hover { color: var(--paper); }

.btn {
  position: relative; display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 1.25rem; border: 1px solid transparent; border-radius: 0;
  font-size: 0.9375rem; font-weight: 560; line-height: 1.2; text-decoration: none; white-space: nowrap;
  transition: background-color var(--dur-1) var(--ease), color var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease);
}
.btn::after {
  content: ""; position: absolute; left: -1px; right: -1px; bottom: -1px; height: 3px;
  background: var(--beam); transform: scaleX(0); transform-origin: left;
  transition: transform 180ms var(--ease);
}
.btn:hover::after { transform: scaleX(1); }
.btn-primary { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.btn-ghost { background: transparent; color: var(--fg); border-color: var(--fg); }
.on-ink .btn-ghost[style]:is(:hover, :focus-visible) { border-color: var(--paper) !important; }
/* safety net: 117 closer buttons carry an inline beam fill (paper on beam fails AA at 3.05:1) */
.on-ink .btn-primary[style] { background: var(--paper) !important; color: var(--ink) !important; }
.on-ink .btn-ghost[style] { border-color: var(--steel) !important; color: var(--paper) !important; }
.btn-row { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem 1.25rem; margin-top: 2rem; }

/* ================================================================ header (unchanged from v1 by request) */

/* ---------- header ---------- */
.site-head { border-bottom: 1px solid var(--line); background: var(--paper); }
.site-head .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem 2rem; flex-wrap: wrap; padding-top: 1.1rem; padding-bottom: 1.1rem;
}
.logo img { width: 118px; height: auto; }
.site-nav { display: flex; align-items: center; gap: clamp(1rem, 2.5vw, 2rem); flex-wrap: wrap; }
.site-nav a {
  text-decoration: none; font-weight: 500; font-size: 0.9375rem; color: var(--gunmetal);
  transition: color 150ms var(--ease);
}
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--ink); }

/* articles mega-menu (CSS-only: hover + keyboard focus; hidden on touch/small) */
.nav-item.has-menu { position: relative; display: flex; align-items: center; }
.mega { display: none; position: absolute; top: 100%; right: 0; z-index: 30; padding-top: 18px; }
@media (hover: hover) and (min-width: 901px) {
  .has-menu:hover .mega, .has-menu:focus-within .mega { display: block; }
}
.mega-in { width: 720px; max-width: min(92vw, 720px); background: var(--paper);
  border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 18px 50px rgba(15, 17, 21, 0.14);
  padding: 1.4rem 1.5rem 1.2rem; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 1.4rem; }
.mega-in h5 { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.13em;
  text-transform: uppercase; color: var(--beam-deep); font-weight: 500; margin-bottom: 0.5rem; }
.mega-in .mitem { font-size: 0.84rem; font-weight: 400; color: var(--gunmetal) !important;
  text-decoration: none; padding: 0.32rem 0; line-height: 1.35;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.mega-in .mitem:hover { color: var(--ink) !important; }
.mega-in .mall { grid-column: 1 / -1; margin-top: 1rem; padding-top: 0.9rem;
  border-top: 1px solid var(--line); font-size: 0.875rem; width: max-content; color: var(--ink) !important; }

/* digital capabilities mega-menu (wide variant: anchored to the header, not the item) */
.site-head .wrap { position: relative; }
.nav-item.has-menu--wide { position: static; }
.mega--digital { left: 0; right: 0; }
.mega--digital::before { content: ""; position: absolute; left: 0; right: 0; top: -20px; height: 20px; }
.mega-in--wide { width: 100%; max-width: none; gap: 0 1.2rem; }
.mega-in .mwhen { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.02em;
  color: var(--steel); margin-bottom: 0.55rem; }
.mega-in .mfoot { grid-column: 1 / -1; display: flex; flex-wrap: wrap; align-items: baseline;
  gap: 0.3rem 1.5rem; margin-top: 1rem; padding-top: 0.9rem; border-top: 1px solid var(--line); }
.mega-in .mfoot .mall { margin: 0; padding: 0; border: 0; }
.mega-in .mfoot .mitem { padding: 0; }

.btn-cta {
  background: var(--ink); color: var(--paper) !important;
  padding: 0.55rem 1.1rem; border-radius: 6px;
  transition: background 150ms var(--ease);
}
.btn-cta:hover { background: var(--beam); }

/* ---------- overlay header (full-bleed hero pages) ---------- */
.site-head--overlay { position: absolute; top: 0; left: 0; right: 0; z-index: 20; background: transparent; border-bottom: none; }
.site-head--overlay .site-nav a { color: rgba(246, 245, 241, 0.78); }
.site-head--overlay .site-nav a:hover, .site-head--overlay .site-nav a[aria-current="page"] { color: var(--paper); }
.site-head--overlay .btn-cta { background: var(--beam); }
.site-head--overlay .btn-cta:hover { background: var(--ink); }

@media (max-width: 760px) {
  .site-head--overlay .btn-cta { display: none; } /* hero's own CTA is in view */
}

/* ================================================================ the rail (>= 1024): eyebrows become zone labels in a left rail */

@media (min-width: 1024px) {
  :is(.hero, .section, .pillar) > .wrap {
    display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--gutter); row-gap: 0; align-items: start;
  }
  :where(:is(.hero, .section, .pillar) > .wrap > *) { grid-column: 4 / -1; }
  :is(.hero, .section) > .wrap > .eyebrow { grid-column: 1 / 4; grid-row: 1 / span 30; align-self: start; margin: 0; padding-top: 0.6rem; }
  .section > .wrap > .eyebrow { position: sticky; top: 1.5rem; }
  .hero > .wrap > .eyebrow { grid-row: 1; }
  .hero > .wrap > h1 { grid-row: 1; }
  .hero > .wrap > .lede { grid-column: 4 / 11; }
  .hero > .wrap > .hero-img { grid-column: 1 / -1; }
  .prose > .wrap { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--gutter); align-items: start; }
  :where(.prose > .wrap > *) { grid-column: 4 / 11; }
  /* full-width figures: the section's eyebrow stays a single static row so the figure can use the rail */
  :is(.section, .prose) > .wrap > :is(.diagram, .home-fig, .gl-figure) { grid-column: 1 / -1; }
  .section:has(> .wrap > :is(.diagram, .home-fig, .gl-figure)) > .wrap > .eyebrow { grid-row: 1; position: static; }
  .pillar > .wrap > .sec-head { display: contents; }
  .pillar .sec-head > .idx { grid-column: 1 / 4; grid-row: 1 / span 30; align-self: start; position: sticky; top: 1.5rem; }
  .pillar .sec-head > h2 { grid-column: 4 / -1; grid-row: 1; }
  .pillar > .wrap > .thesis { grid-column: 4 / 11; }
  .proc-detail > .wrap > .step { grid-column: 1 / -1; display: grid; grid-template-columns: subgrid; align-items: start; }
  .proc-detail .step > .sec-head { display: contents; }
  .proc-detail .step .sec-head > .idx { grid-column: 1 / 4; grid-row: 1 / span 3; }
  .proc-detail .step .sec-head > h2 { grid-column: 4 / -1; grid-row: 1; margin-bottom: 1rem; }
  .proc-detail .step > p { grid-column: 4 / 11; }
}

/* ================================================================ inner hero */

.hero { position: relative; padding: clamp(3rem, 7vw, 6.5rem) 0 clamp(3rem, 6vw, 5.5rem); border-bottom: 1px solid var(--ink); }
/* the crossing mark: a small drawn x where the hero's base rule meets column 1 */
.hero::after {
  content: ""; position: absolute; bottom: -6.5px; width: 10px; height: 12px;
  left: max(var(--margin), calc((100% - var(--max)) / 2 + var(--margin)));
  background: var(--xmark) center / contain no-repeat;
}
.hero:has(+ .on-ink) { border-bottom: 0; }
.hero:has(+ .on-ink)::after { content: none; }   /* an ink sheet next: the edge is the datum, no mark to half-hide */
.hero h1 { max-width: 22ch; }
.hero:has(+ .prose) h1 { font-size: var(--t-display-s); line-height: 1; letter-spacing: -0.03em; font-stretch: 88%; max-width: 26ch; }
.hero .lede { margin-top: 1.5rem; }
.hero .mono.muted { color: var(--gunmetal); }
.hero-img {
  position: relative; margin-top: clamp(2rem, 4vw, 3.25rem); border: 1px solid var(--line); overflow: hidden;
  aspect-ratio: 2400 / 1018; background: var(--bone);
}
.hero-img img { width: 100%; height: 100%; object-fit: cover; }
/* registration ticks at the frame's corners, as on every drawing sheet: the photo reads as a plate on the sheet */
.hero-img::after {
  content: ""; position: absolute; inset: 8px; pointer-events: none;
  background:
    linear-gradient(var(--ink), var(--ink)) left top / 12px 1px no-repeat,
    linear-gradient(var(--ink), var(--ink)) left top / 1px 12px no-repeat,
    linear-gradient(var(--ink), var(--ink)) right top / 12px 1px no-repeat,
    linear-gradient(var(--ink), var(--ink)) right top / 1px 12px no-repeat,
    linear-gradient(var(--ink), var(--ink)) left bottom / 12px 1px no-repeat,
    linear-gradient(var(--ink), var(--ink)) left bottom / 1px 12px no-repeat,
    linear-gradient(var(--ink), var(--ink)) right bottom / 12px 1px no-repeat,
    linear-gradient(var(--ink), var(--ink)) right bottom / 1px 12px no-repeat;
}
.hero-img--framed::after { content: none; }   /* the photo carries its own drawn frame */

/* the 404 has no chrome: one sheet the height of the viewport, the wordmark on the rail, ticks at the corners */
.nf { min-height: 100svh; display: flex; flex-direction: column; justify-content: center; padding-block: 7rem 5rem; border-bottom: 0; }
.nf::after { content: none; }
.nf > .wrap { width: 100%; }
.nf::before {
  content: ""; position: absolute; inset: 14px; pointer-events: none;
  background:
    linear-gradient(var(--ink), var(--ink)) left top / 16px 1px no-repeat,
    linear-gradient(var(--ink), var(--ink)) left top / 1px 16px no-repeat,
    linear-gradient(var(--ink), var(--ink)) right top / 16px 1px no-repeat,
    linear-gradient(var(--ink), var(--ink)) right top / 1px 16px no-repeat,
    linear-gradient(var(--ink), var(--ink)) left bottom / 16px 1px no-repeat,
    linear-gradient(var(--ink), var(--ink)) left bottom / 1px 16px no-repeat,
    linear-gradient(var(--ink), var(--ink)) right bottom / 16px 1px no-repeat,
    linear-gradient(var(--ink), var(--ink)) right bottom / 1px 16px no-repeat;
}
.nf-mark { position: absolute; top: 2.75rem; left: max(var(--margin), calc((100% - var(--max)) / 2 + var(--margin))); }
.nf-mark img { width: 118px; height: auto; }
.nf-more { margin-top: 1.75rem; font-family: var(--mono); font-size: var(--t-note); letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-2); }
.nf-more a { color: var(--fg); text-decoration: underline 1px var(--datum); text-underline-offset: 0.3em; }
.nf-more a:is(:hover, :focus-visible) { text-decoration: underline 2px var(--beam); }

/* ================================================================ sections */

.section, .pillar { position: relative; padding: var(--space-section) 0; }
:is(.section, .pillar)::before { content: ""; position: absolute; inset: 0 0 auto; height: 1px; background: var(--rule); transform-origin: left; }
/* the closing ink sheet meets the (unchanged) ink footer without a paper gap */
main > .section.on-ink:last-of-type { margin-bottom: calc(-1 * var(--space-section)); border-bottom: 1px solid var(--line-dark); }
.hero + :is(.section, .pillar)::before, .section.on-ink::before, .band-ink + .section::before, .section + .band-ink::before { content: none; }
.section h2 { max-width: 22ch; }
.section h2 + p, .section h2 + .muted { margin-top: 1.4rem; }
.section .lede { margin-top: 1.4rem; }

.section.on-ink { background: var(--ink); color: var(--paper); }
.on-ink h2, .on-ink h3 { color: var(--paper); }
.on-ink p:not(.eyebrow), .on-ink .muted { color: var(--fog); }
.on-ink > .wrap > h2 { font-size: var(--t-closer); line-height: 0.92; letter-spacing: -0.035em; font-weight: 540; font-stretch: 84%; max-width: 16ch; }
:is(.on-ink, .band-ink)::after {
  content: ""; position: absolute; inset: 14px; pointer-events: none;
  background:
    linear-gradient(var(--beam), var(--beam)) left top / 16px 1px no-repeat,
    linear-gradient(var(--beam), var(--beam)) left top / 1px 16px no-repeat,
    linear-gradient(var(--beam), var(--beam)) right top / 16px 1px no-repeat,
    linear-gradient(var(--beam), var(--beam)) right top / 1px 16px no-repeat,
    linear-gradient(var(--beam), var(--beam)) left bottom / 16px 1px no-repeat,
    linear-gradient(var(--beam), var(--beam)) left bottom / 1px 16px no-repeat,
    linear-gradient(var(--beam), var(--beam)) right bottom / 16px 1px no-repeat,
    linear-gradient(var(--beam), var(--beam)) right bottom / 1px 16px no-repeat;
}

/* ================================================================ tiles */

.tiles {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 250px), 1fr));
  margin-top: 2.5rem; border-top: 1px solid var(--rule); border-left: 1px solid var(--rule);
  box-shadow: inset -1px -1px 0 var(--rule);   /* closes the sheet where a last row runs short: the tiles paint over it everywhere else */
}
/* an even set (four sectors) reads as a 2 × 2 sheet, never three and an orphan */
@media (min-width: 640px) { .tiles--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
/* a set of three stays one row of three from tablet up, never two and an orphan */
@media (min-width: 760px) { .tiles--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.tile {
  position: relative; display: flex; flex-direction: column; min-width: 0;
  padding: 1.5rem 1.4rem 1.75rem; border-right: 1px solid var(--rule); border-bottom: 1px solid var(--rule);
  text-decoration: none; color: var(--fg); background: var(--bg);
  transition: background-color var(--dur-1) var(--ease);
}
.tile::before { content: ""; position: absolute; left: -1px; right: -1px; top: -1px; height: 2px; background: var(--fg); transform: scaleX(0); transform-origin: left; transition: transform var(--dur-2) var(--ease); }
.tile::after {
  content: ""; position: absolute; inset: 7px; pointer-events: none;
  background:
    linear-gradient(var(--fg), var(--fg)) left top / 0 1px no-repeat,
    linear-gradient(var(--fg), var(--fg)) left top / 1px 0 no-repeat,
    linear-gradient(var(--fg), var(--fg)) right bottom / 0 1px no-repeat,
    linear-gradient(var(--fg), var(--fg)) right bottom / 1px 0 no-repeat;
  transition: background-size var(--dur-1) var(--ease);
}
.tile:is(:hover, :focus-visible) { background: var(--bg-2); }
.tile:is(:hover, :focus-visible) .idx { color: var(--fg); } /* beam-deep on bone is 4.24:1 — swap to ink on the wash */
.tile:is(:hover, :focus-visible)::before { transform: scaleX(1); }
.tile:is(:hover, :focus-visible)::after { background-size: 10px 1px, 1px 10px, 10px 1px, 1px 10px; }
.tile .idx { display: block; margin-bottom: 1.25rem; }
.tile h3 { font-size: var(--t-head); margin-bottom: 0.5rem; }
.tile p { font-size: var(--t-small); line-height: 1.55; color: var(--fg-2); max-width: none; }
@media (min-width: 1024px) { .tile h3 { font-size: 1.25rem; line-height: 1.22; text-wrap: pretty; } }
@media (max-width: 559.98px) { .tile { padding: 1.1rem 1.1rem 1.25rem; } .tile .idx { margin-bottom: 0.7rem; } .tiles { margin-top: 2rem; } }
.tile:focus-visible, .route:focus-visible { z-index: 1; }

/* ================================================================ subs (spec rows, FAQs) */

.subs { display: grid; grid-template-columns: minmax(0, 1fr); gap: 2rem 3rem; margin-top: 3rem; counter-reset: sub; }
@media (min-width: 760px) { .subs { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2.5rem 3rem; } }
.sub { counter-increment: sub; border-top: 1px solid var(--rule); padding-top: 1rem; min-width: 0; }
.sub h3 { margin-bottom: 0.6rem; }
.sub h3::before {
  content: counter(sub, decimal-leading-zero);
  content: counter(sub, decimal-leading-zero) / "";
  display: block; margin-bottom: 0.65rem;
  font-family: var(--mono); font-size: var(--t-note); font-weight: 500; letter-spacing: 0.1em; color: var(--fg-2);
  font-variant-numeric: tabular-nums;
}
.pillar .sub h3::before,
.section:has(> .wrap > .eyebrow) .sub h3::before {
  content: counter(sec, decimal-leading-zero) "." counter(sub);
  content: counter(sec, decimal-leading-zero) "." counter(sub) / "";
}
.sub p { font-size: 0.96875rem; line-height: 1.6; color: var(--fg-2); max-width: none; }
.sub p + p { margin-top: 0.75rem; }

/* ================================================================ expertise pillars */

.sec-head { display: flex; align-items: baseline; gap: 1.2rem; margin-bottom: 1rem; }
.pillar .sec-head .idx, .proc-detail .sec-head .idx { font-size: var(--t-title); font-weight: 500; letter-spacing: -0.02em; line-height: 1; }
.thesis {
  margin-top: 1rem; padding-left: 1rem; border-left: 1px solid var(--ink);
  font-size: var(--t-lede); line-height: 1.45; color: var(--fg-2); max-width: 52ch;
}
/* engagement models: a short parts list — zone.item, the model, when it fits */
.models { list-style: none; margin-top: 2.25rem; max-width: 54rem; border-top: 1px solid var(--rule-strong); counter-reset: model; }
.models > li {
  counter-increment: model; display: grid; grid-template-columns: 2.75rem minmax(0, 1fr); column-gap: 0.75rem; row-gap: 0.1rem;
  align-items: baseline; padding: 0.85rem 0 0.95rem; border-bottom: 1px solid var(--rule);
}
.models > li::before {
  content: counter(sec, decimal-leading-zero) "." counter(model);
  content: counter(sec, decimal-leading-zero) "." counter(model) / "";
  grid-row: 1 / span 2; font: 500 var(--t-note)/1.6 var(--mono); letter-spacing: 0.08em; color: var(--accent); font-variant-numeric: tabular-nums;
}
.models strong { font-size: 1.0625rem; font-weight: 560; line-height: 1.35; color: var(--fg); }
.models span { font-size: var(--t-small); line-height: 1.5; color: var(--fg-2); }
.on-ink .models span { color: var(--fog); }
@media (min-width: 760px) {
  .models > li { grid-template-columns: 2.75rem minmax(0, 18rem) minmax(0, 1fr); column-gap: var(--gutter); }
  .models > li::before { grid-row: 1; }
}

/* ================================================================ process */

.proc {
  position: relative; display: grid; grid-template-columns: minmax(0, 1fr); gap: 2rem var(--gutter);
  margin-top: 3rem; padding-top: 2.25rem;
}
@media (min-width: 640px) { .proc { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1024px) { .proc { grid-template-columns: repeat(4, minmax(0, 1fr)); row-gap: 0; } .proc .step { display: grid; grid-row: span 4; grid-template-rows: subgrid; align-content: start; } }
@media (max-width: 639.98px) { .proc .step:not(:first-child)::before { content: none; } }
@media (min-width: 640px) and (max-width: 1023.98px) { .proc .step:nth-child(n+3)::before { content: none; } }
/* the dimension chain: one line, arrowheads at both ends, a gate tick at each step */
.proc::before { content: ""; position: absolute; left: 0; right: 0; top: 0.5rem; height: 1px; background: var(--rule-strong); transform-origin: left; }
.proc::after {
  content: ""; position: absolute; left: -1px; right: -1px; top: calc(0.5rem - 4px); height: 9px;
  background:
    conic-gradient(from 225deg at 0 50%, var(--rule-strong) 0 90deg, transparent 0) left / 9px 9px no-repeat,
    conic-gradient(from 45deg at 100% 50%, var(--rule-strong) 0 90deg, transparent 0) right / 9px 9px no-repeat;
}
.proc .step { position: relative; min-width: 0; }
.proc .step::before { content: ""; position: absolute; left: 0; top: calc(-2.25rem + 0.5rem - 6px); width: 1px; height: 13px; background: var(--rule-strong); }
.proc .step .idx { display: block; margin-bottom: 0.8rem; }
.proc .step h3 { font-size: var(--t-head); margin-bottom: 0.45rem; }
.proc .step p { font-size: var(--t-small); line-height: 1.55; max-width: none; color: var(--fg-2); }
.proc .step .you-get { margin-top: 0.9rem; font-family: var(--mono); font-size: var(--t-note); line-height: 1.55; letter-spacing: 0.04em; }
.proc .step .you-get b { font-weight: 500; color: var(--fg); letter-spacing: 0.1em; text-transform: uppercase; }

.proc-detail .step { margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.proc-detail .step .sec-head { margin-bottom: 1rem; }
.proc-detail .step .roles { margin-top: 1.1rem; font-size: 0.96875rem; line-height: 1.65; color: var(--fg-2); }
.proc-detail .step .roles strong {
  font-family: var(--mono); font-size: var(--t-note); font-weight: 500; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--accent);
}

/* ================================================================ prose (articles, legal, studio, contact) */

.prose { position: relative; padding: var(--space-section) 0; counter-reset: para; }
.hero + .prose > .wrap { padding-top: clamp(3rem, 6vw, 5.5rem); }
main > .prose:last-child { padding-bottom: var(--space-block); }
.prose > .wrap > h2 + :is(p, ul, ol) { margin-top: 0; }
.prose > .wrap > :first-child { margin-top: 0; }
.prose p { font-size: 1.125rem; line-height: 1.65; max-width: 66ch; }
.prose p + p { margin-top: 1rem; }
.prose .cta-inline + p { margin-top: 0; }
.prose h2 {
  position: relative; counter-increment: para; margin: 3rem 0 0.9rem; max-width: 30ch;
  font-size: clamp(1.4rem, 1.2rem + 0.8vw, 1.75rem); line-height: 1.15; letter-spacing: -0.015em; font-stretch: 94%;
}
.prose h2::before {
  content: "§ " counter(para, decimal-leading-zero);
  content: "§ " counter(para, decimal-leading-zero) / "";
  display: block; margin-bottom: 0.5rem;
  font-family: var(--mono); font-size: var(--t-note); font-weight: 500; letter-spacing: 0.1em; color: var(--gunmetal); font-stretch: 100%;
}
.prose ul:not(.ticks) { margin: 0.6rem 0 1rem; padding-left: 1.25em; list-style: square; max-width: 66ch; }
.prose ul:not(.ticks) li { margin-top: 0.4rem; font-size: 1.125rem; }
.prose ul:not(.ticks) li::marker { color: var(--gunmetal); }
@media (min-width: 1024px) {
  .prose h2::before { position: absolute; right: calc(100% + var(--gutter)); top: 0.45em; margin: 0; white-space: nowrap; }
}

/* ================================================================ diagrams — pinned to a light surface */

.diagram {
  --ink: #0F1115; --paper: #F6F5F1; --bone: #EDEBE4; --gunmetal: #565B64; --steel: #626A78;
  --line: #DDDACF; --line-dark: #2A2E36; --beam: #FF4D00; --beam-deep: #C93D02;
  --sans: "Instrument Sans", -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", "SF Mono", Menlo, Consolas, monospace;
  position: relative; counter-increment: fig;
  margin-top: 2.75rem; padding: clamp(1rem, 3vw, 2rem); overflow-x: auto;
  color: #0F1115; border: 1px solid #DDDACF;
  /* registration ticks as background layers: they stay with the frame when the drawing scrolls */
  background:
    linear-gradient(#0F1115, #0F1115) 6px 6px / 10px 1px no-repeat,
    linear-gradient(#0F1115, #0F1115) 6px 6px / 1px 10px no-repeat,
    linear-gradient(#0F1115, #0F1115) calc(100% - 6px) 6px / 10px 1px no-repeat,
    linear-gradient(#0F1115, #0F1115) calc(100% - 6px) 6px / 1px 10px no-repeat,
    linear-gradient(#0F1115, #0F1115) 6px calc(100% - 6px) / 10px 1px no-repeat,
    linear-gradient(#0F1115, #0F1115) 6px calc(100% - 6px) / 1px 10px no-repeat,
    linear-gradient(#0F1115, #0F1115) calc(100% - 6px) calc(100% - 6px) / 10px 1px no-repeat,
    linear-gradient(#0F1115, #0F1115) calc(100% - 6px) calc(100% - 6px) / 1px 10px no-repeat,
    #F6F5F1;
  font-stretch: 100%; font-weight: 400; font-variant-numeric: normal; font-feature-settings: normal;
  letter-spacing: normal; line-height: normal;
}
/* the narrow rail range gives the sheet back its padding (declared after the base rule so it actually applies) */
@media (min-width: 1024px) and (max-width: 1199.98px) { .diagram { padding-inline: 1rem; } }
.diagram svg { display: block; width: 100%; height: auto; }
.diagram text { font-family: var(--sans); } /* never fill/stroke/color here: CSS would beat the SVG attributes */
.diagram .dm { font-family: var(--mono); letter-spacing: 0.05em; }
.diagram figcaption {
  position: sticky; left: 0; margin-top: 1rem; padding-top: 0.75rem; border-top: 1px solid #DDDACF; max-width: none;
  font-family: var(--mono); font-size: var(--t-note); line-height: 1.5; letter-spacing: 0.1em; text-transform: uppercase; color: #565B64;
  text-wrap: balance;   /* phone captions break evenly instead of leaving "out · scroll →" alone on a line */
}
.diagram figcaption::before {
  content: "fig. " counter(fig, decimal-leading-zero) " — ";
  content: "fig. " counter(fig, decimal-leading-zero) " — " / "";
  color: #0F1115; font-weight: 500;
}

@media (max-width: 899.98px) {
  .diagram figcaption::after { content: " · scroll →"; content: " · scroll →" / ""; color: #0F1115; white-space: nowrap; }
}
/* sheets drawn with a wider min-width still scroll above 900: --mid (≤ 900px) until the rail opens, --wide (960–980px) until ~1094 */
@media (min-width: 900px) and (max-width: 1023.98px) {
  .diagram--mid figcaption::after { content: " · scroll →"; content: " · scroll →" / ""; color: #0F1115; white-space: nowrap; }
}
@media (min-width: 900px) and (max-width: 1093.98px) {
  .diagram--wide figcaption::after { content: " · scroll →"; content: " · scroll →" / ""; color: #0F1115; white-space: nowrap; }
}

/* ================================================================ inline note, tick lists */

.cta-inline {
  margin: 2.25rem 0; padding: 1rem 0 1.1rem; border-top: 1px solid var(--rule-strong); border-bottom: 1px solid var(--rule-strong);
  max-width: 66ch;
}
/* the label is one run of text (the tick hangs in the indent): as a flex row, the lowercase name span and the
   words after it became separate items and the gap doubled the space after "skeelx" */
.cta-inline .mono {
  display: block; position: relative; padding-left: calc(8px + 0.6rem); margin-bottom: 0.5rem;
  font-size: var(--t-note); font-weight: 500; line-height: 1.5; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent);
}
.cta-inline .mono::before { content: ""; position: absolute; left: 0; top: calc(0.75em - 5px); width: 8px; height: 10px; background: var(--tick) center / contain no-repeat; }
.cta-inline p { font-size: 0.96875rem; line-height: 1.6; color: var(--fg-2); max-width: none; }
/* on service pages the note closes a two-column offer grid: its rules run the grid's full width, the text keeps its measure */
.section > .wrap > .cta-inline { max-width: none; }
.section > .wrap > .cta-inline p { max-width: 66ch; }
.section > .wrap > .cta-inline:last-child { margin-bottom: 0; }

.ticks { list-style: none; max-width: 66ch; margin-top: 1.5rem; }
.ticks li { position: relative; padding-left: 1.5rem; margin-bottom: 0.6rem; font-size: 0.96875rem; line-height: 1.55; color: var(--fg-2); }
.ticks li::before { content: ""; position: absolute; left: 0.1rem; top: 0.42em; width: 8px; height: 10px; background: var(--tick) center / contain no-repeat; }
/* a deliverables list under the offerings is its own block, not a tail on the last offering */
.subs + .ticks { max-width: none; padding-top: 1.4rem; border-top: 1px solid var(--rule-strong); }
/* a short mono promise row: every item leads with its own tick, so a wrapped row never strands a "·" */
.ticks--mono { display: flex; flex-wrap: wrap; gap: 0.35rem 1.75rem; max-width: none; margin-top: 1.25rem; }
.ticks--mono li { margin: 0; padding-left: 1.15rem; white-space: nowrap; font-family: var(--mono); font-size: 0.8125rem; line-height: 1.5; letter-spacing: 0.04em; color: var(--gunmetal); }
.ticks--mono li::before { left: 0; top: 0.38em; width: 7px; height: 9px; }
@media (max-width: 479.98px) { .ticks--mono li { white-space: normal; } }

/* ================================================================ held blocks (restore needs no new CSS) */

.logo-strip { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 1.4rem; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
@media (max-width: 760px) { .logo-strip { grid-template-columns: repeat(2, 1fr); } }
.logo-slot { min-height: 92px; display: flex; align-items: center; justify-content: center; padding: 1rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.logo-slot .mono { color: var(--gunmetal); font-size: var(--t-note); letter-spacing: 0.12em; text-transform: uppercase; text-align: center; }
.logo-slot img { max-height: 44px; width: auto; max-width: 82%; filter: grayscale(1); opacity: 0.8; mix-blend-mode: multiply; }
.logo-slot img.lg-tall { max-height: 62px; }
.logo-slot img.lg-wide { max-height: 30px; }
.cases { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr)); gap: var(--gutter); margin-top: 2.6rem; }
.case-slot { border: 1px dashed var(--line); padding: 2rem 1.6rem; min-height: 220px; display: flex; flex-direction: column; justify-content: flex-end; color: var(--fg-2); }
.case-slot .mono { color: var(--gunmetal); margin-bottom: 0.6rem; }

/* ================================================================ home — ink scope for the hero and the ink chapters */

.hero-gl, .chapter--ink {
  --bg: var(--ink); --bg-2: var(--ink-2); --fg: var(--paper); --fg-2: var(--fog); --rule: var(--line-dark);
  --rule-strong: var(--paper); --accent: var(--beam); --focus: var(--beam); --datum: rgb(246 245 241 / 0.4);
  background: var(--ink); color: var(--paper);
}

/* ================================================================ home — the hero drawing */

.hero-gl {
  position: relative; isolation: isolate; overflow: clip;
  min-height: max(660px, 100svh); display: grid; grid-template-columns: minmax(0, 1fr); grid-template-rows: 1fr auto; padding-top: 6.5rem;
}
/* the construction grid: column hairlines aligned to the page grid, behind the drawing */
.hero-gl::before {
  content: ""; position: absolute; top: 0; bottom: 0; z-index: -1; pointer-events: none;
  left: max(var(--margin), calc((100% - var(--max)) / 2 + var(--margin)));
  right: max(var(--margin), calc((100% - var(--max)) / 2 + var(--margin)));
  background:
    linear-gradient(90deg, rgb(246 245 241 / 0.055) 0 1px, transparent 1px) 0 0 / calc((100% + var(--gutter)) / 12) 100% repeat-x,
    linear-gradient(90deg, rgb(246 245 241 / 0.055) 0 1px, transparent 1px) 100% 0 / 1px 100% no-repeat;
}
.gl-stage { position: relative; }
.gl-stage .gl-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.hero-gl-stage { position: absolute; inset: 0; z-index: 0; }
.gl-labels { position: absolute; inset: 0; pointer-events: none; overflow: hidden; contain: strict; }
.gl-off > .gl-labels { display: none; }
.gl-label {
  position: absolute; left: 0; top: 0; white-space: nowrap; opacity: 0;
  font: 500 0.625rem/1.2 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-2);
}
.gl-label--beam { color: var(--accent); }
.gl-label--code { text-transform: none; }
.gl-label--cut {
  display: grid; place-items: center; width: 18px; height: 18px; border: 1px solid var(--accent);
  color: var(--accent); letter-spacing: 0; background: var(--bg);
}
.gl-label--title { color: var(--fg); letter-spacing: 0.14em; }
.gl-leaders { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.gl-leader path { fill: none; stroke: var(--fg-2); stroke-width: 1; }
.gl-leader circle { fill: var(--bg); stroke: var(--fg-2); stroke-width: 1; }
.gl-leader--beam path, .gl-leader--beam circle { stroke: var(--beam); }
.still *, .still *::before, .still *::after { animation: none !important; transition: none !important; }
html.still { scroll-behavior: auto; }
.reg { position: absolute; width: 16px; height: 16px; z-index: 1; pointer-events: none; }
.reg::before, .reg::after { content: ""; position: absolute; background: var(--beam); }
.reg::before { width: 16px; height: 1px; }
.reg::after { width: 1px; height: 16px; }
.reg--tl { left: 14px; top: 14px; }
.reg--tr { right: 14px; top: 14px; } .reg--tr::before, .reg--tr::after { right: 0; }
.reg--bl { left: 14px; bottom: 14px; } .reg--bl::before, .reg--bl::after { bottom: 0; }
.reg--br { right: 14px; bottom: 14px; } .reg--br::before, .reg--br::after { right: 0; bottom: 0; }

.hero-gl-copy { position: relative; z-index: 2; align-self: center; width: 100%; pointer-events: none; padding-bottom: 2.5rem; }
.hero-gl-copy > * { pointer-events: auto; max-width: 40rem; }
.hero-gl-copy .eyebrow { color: var(--steel); margin-bottom: 1.5rem; }
.hero-gl-h1 {
  font-size: clamp(3.25rem, 1rem + 6.9vw, 8rem); line-height: 0.86; letter-spacing: -0.042em;
  font-weight: 540; font-stretch: 84%; color: var(--paper); max-width: none !important;
}
.hero-gl-h1 .br-sm { display: none; }
.dx { position: relative; display: inline-block; width: 0.421em; height: 0.51em; margin-left: 0.02em; vertical-align: baseline; user-select: none; }
.dx svg { width: 100%; height: 100%; overflow: visible; fill: none; stroke-width: 26; stroke-linecap: round; }
.dx .xf { stroke: var(--paper); }
.dx .xr { stroke: var(--beam); }
.hero-gl-copy .lede { margin-top: 1.75rem; color: var(--fog); max-width: 34ch; }
.hero-gl-copy .btn-row { margin-top: 2rem; }
.promise { margin-top: 1rem; font-family: var(--mono); font-size: var(--t-note); letter-spacing: 0.1em; text-transform: uppercase; color: var(--steel); }
.hero-gl-copy .promise { width: fit-content; background: var(--bg); padding-right: 0.5em; }

.hero-gl-routes { position: relative; z-index: 2; width: 100%; padding-bottom: clamp(1.5rem, 3vw, 2.5rem); }
.routes { list-style: none; display: grid; grid-template-columns: minmax(0, 1fr); gap: 0 var(--gutter); }
@media (min-width: 760px) { .routes { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.route {
  position: relative; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; column-gap: 0.9rem; align-items: baseline;
  padding: 1rem 0 1.1rem; border-top: 1px solid var(--line-dark); background: var(--ink); text-decoration: none; color: var(--paper);
  min-height: 72px; transition: box-shadow var(--dur-1) var(--ease);
}
.route-idx { grid-column: 1; grid-row: 1; font-family: var(--mono); font-size: var(--t-mono); font-weight: 500; letter-spacing: 0.08em; color: var(--beam); }
.route-name { grid-column: 2; grid-row: 1; font-size: var(--t-index); font-weight: 520; font-stretch: 88%; letter-spacing: -0.02em; line-height: 1; }
.route-go { grid-column: 3; grid-row: 1; font-family: var(--mono); color: var(--steel); transition: transform var(--dur-1) var(--ease), color var(--dur-1) var(--ease); }
.route-title { grid-column: 2 / -1; margin-top: 0.5rem; font-size: 1.0625rem; font-weight: 560; }
.route-desc { grid-column: 2 / -1; margin-top: 0.15rem; font-size: var(--t-small); line-height: 1.5; color: var(--fog); }
.route:is(:hover, :focus-visible) { box-shadow: inset 0 2px 0 var(--paper); }
.route:is(:hover, :focus-visible) .route-go { color: var(--paper); transform: translateX(4px); }
@media (min-width: 1024px) and (max-height: 899.98px) {
  .hero-gl { padding-top: 5.5rem; }
  .hero-gl-copy { padding-bottom: 0.75rem; }
  .hero-gl-copy .eyebrow { margin-bottom: 1rem; }
  .hero-gl-h1 { font-size: min(clamp(3.25rem, 1rem + 6.9vw, 8rem), 12.5svh); }
  .hero-gl-copy .lede { margin-top: 1.25rem; font-size: 1.125rem; }
  .hero-gl-copy .btn-row { margin-top: 1.5rem; }
  .hero-gl-routes { padding-bottom: 1rem; }
  .route { padding: 0.75rem 0 0.8rem; min-height: 0; }
}

/* ---- the hero below 1024: the drawing sits on top in normal flow, the copy follows */
@media (max-width: 1023.98px) {
  .hero-gl { display: block; min-height: 0; padding-top: 84px; }
  .hero-gl-stage { position: relative; inset: auto; height: clamp(340px, 74vw, 600px); }
  .hero-gl-copy { padding-top: 1.25rem; padding-bottom: 2.5rem; }
  .hero-gl-stage.gl-off, html:not(.js) .hero-gl-stage { display: none; }
  .hero-gl-copy > * { max-width: 36rem; }
  .hero-gl-routes { padding-bottom: 2.5rem; }
}
@media (max-width: 760px) { .hero-gl { padding-top: 104px; } .hero-gl-stage { height: clamp(300px, 92vw, 460px); } }
@media (max-width: 639.98px) {
  .hero-gl-h1 { font-size: 19.5vw; }
  .hero-gl-h1 .br-sm { display: inline; }
}

/* ================================================================ home — the chapters: one pinned drawing sheet each */

/* a chapter is a tall scroll track; its stage pins for the length of the track and the drawing reads the progress.
   >= 1024 the stage carries the page's 12 columns: copy in c1–4, the drawing from c5 to the viewport's right edge */
.chapter { position: relative; height: 260svh; counter-increment: sec; background: var(--bg); color: var(--fg); }
.chapter:where(#digital) { height: 380svh; }   /* five stations and a pull-back: give each move room to read */
.chapter:where(#connected) { height: 340svh; } /* six layers and a settle: one step each */
.chapter--paper { --reg: var(--ink); }
.chapter--ink { --reg: var(--beam); --rail: var(--steel); }   /* the progress rail: gunmetal on paper, steel on ink (fog would outshout the drawing) */
.chapter-stage {
  --edge: max(var(--margin), calc((100% - var(--max)) / 2 + var(--margin)));
  position: sticky; top: 0; height: 100svh; overflow: clip;
  display: grid; grid-template-columns: minmax(0, 1fr); grid-template-rows: auto minmax(0, 1fr);
}
/* registration ticks at the sheet's four corners: ink on paper, beam on ink */
.chapter-stage::after {
  content: ""; position: absolute; inset: 14px; z-index: 3; pointer-events: none;
  background:
    linear-gradient(var(--reg), var(--reg)) left top / 16px 1px no-repeat,
    linear-gradient(var(--reg), var(--reg)) left top / 1px 16px no-repeat,
    linear-gradient(var(--reg), var(--reg)) right top / 16px 1px no-repeat,
    linear-gradient(var(--reg), var(--reg)) right top / 1px 16px no-repeat,
    linear-gradient(var(--reg), var(--reg)) left bottom / 16px 1px no-repeat,
    linear-gradient(var(--reg), var(--reg)) left bottom / 1px 16px no-repeat,
    linear-gradient(var(--reg), var(--reg)) right bottom / 16px 1px no-repeat,
    linear-gradient(var(--reg), var(--reg)) right bottom / 1px 16px no-repeat;
}

.chapter-copy { position: relative; z-index: 1; min-width: 0; }
/* the eyebrow prints the sheet zone first — "01 / digital" — continuing the page counter */
.chapter-copy > .eyebrow { margin-bottom: 1.75rem; }
.chapter-copy > .eyebrow::before {
  content: counter(sec, decimal-leading-zero);
  content: counter(sec, decimal-leading-zero) / "";
  width: auto; height: auto; color: var(--accent);
  padding-right: 1.35rem; background-position: right 0.1rem center; background-size: 9px 11px; margin-top: 0;
}
.chapter-copy h2 {
  font-size: clamp(2rem, 0.9rem + 2.3vw, 3.25rem); line-height: 1; letter-spacing: -0.03em;
  font-weight: 560; font-stretch: 88%; max-width: 13ch; color: var(--fg);
}
.chapter-line { margin-top: 1.25rem; font-size: 1.0625rem; line-height: 1.5; color: var(--fg-2); max-width: 31ch; }
/* the links read as a short parts list: zone.item, name, arrow */
.chapter-links { list-style: none; margin-top: 2.25rem; max-width: 21rem; border-top: 1px solid var(--rule); counter-reset: part; }
.chapter-links li { counter-increment: part; border-bottom: 1px solid var(--rule); }
.chapter-links a {
  display: grid; grid-template-columns: 2.6rem minmax(0, 1fr) auto; align-items: baseline;
  min-height: 40px; padding: 0.6rem 0; font-size: 0.9375rem; line-height: 1.3; font-weight: 500; color: var(--fg); text-decoration: none;
  transition: box-shadow var(--dur-1) var(--ease);
}
.chapter-links a::before {
  content: counter(sec, decimal-leading-zero) "." counter(part);
  content: counter(sec, decimal-leading-zero) "." counter(part) / "";
  font: 500 var(--t-note)/1 var(--mono); letter-spacing: 0.08em; color: var(--fg-2); font-variant-numeric: tabular-nums;
}
.chapter-links a::after { content: "→"; content: "→" / ""; font-family: var(--mono); font-size: 0.8125rem; color: var(--fg-2); transition: transform var(--dur-1) var(--ease), color var(--dur-1) var(--ease); }
.chapter-links a:is(:hover, :focus-visible) { box-shadow: inset 0 -1px 0 var(--fg); }
.chapter-links a:is(:hover, :focus-visible)::after { color: var(--fg); transform: translateX(3px); }
/* the layers read as a parts list too: [n] is the drawing's marker, then the layer, then what it is in mono. Plain rows,
   not links: nothing here takes focus, so the keyboard goes from the chapter straight to "Connected devices" */
.chapter-refs { list-style: none; margin-top: 2rem; max-width: 22rem; border-top: 1px solid var(--rule); counter-reset: ref; }
.chapter-refs li {
  counter-increment: ref; display: grid; grid-template-columns: 2.6rem minmax(0, 1fr); align-items: baseline;
  padding: 0.5rem 0 0.55rem; border-bottom: 1px solid var(--rule); color: var(--fg);
}
.chapter-refs li::before {
  content: "[" counter(ref) "]";
  content: "[" counter(ref) "]" / "";
  grid-column: 1; grid-row: 1; font: 500 var(--t-note)/1 var(--mono); letter-spacing: 0.04em; color: var(--fg-2); font-variant-numeric: tabular-nums;
}
.chapter-refs .ref-layer { grid-column: 2; grid-row: 1; font-size: 0.875rem; font-weight: 500; line-height: 1.3; }
.chapter-refs .ref-desc {
  grid-column: 2; grid-row: 2; margin-top: 0.2rem; font: 400 var(--t-note)/1.45 var(--mono); letter-spacing: 0.03em; color: var(--fg-2);
}

.chapter-go { display: inline-block; margin-top: 2rem; font-size: 0.9375rem; }
.chapter-line + .chapter-go { margin-top: 1.75rem; }

/* the drawing: a sheet whose border carries the chapter's progress (scroll-linked, set by home.js as --p) */
.chapter-gl { min-width: 0; min-height: 0; border-top: 1px solid var(--rule); }
.chapter-gl::after {
  content: ""; position: absolute; z-index: 2; left: 0; right: 0; top: -1px; height: 1px; pointer-events: none;
  background: var(--rail, var(--fg-2)); transform: scaleX(var(--p, 0)); transform-origin: left;
}
/* the rail's cursor: a short cross tick at the head of the progress, so a part-drawn rail reads as a gauge, not a broken rule */
.chapter-gl::before {
  content: ""; position: absolute; z-index: 2; left: 0; right: 0; top: -4px; height: 7px; pointer-events: none;
  background: linear-gradient(var(--rail, var(--fg-2)), var(--rail, var(--fg-2))) calc(var(--p, 0) * 100%) 0 / 1px 100% no-repeat;
}

@media (min-width: 1024px) {
  .chapter-stage {
    grid-template-columns: calc(var(--edge) - var(--gutter)) repeat(12, minmax(0, 1fr)) calc(var(--edge) - var(--gutter));
    grid-template-rows: minmax(0, 1fr); column-gap: var(--gutter);
  }
  .chapter-copy { grid-column: 2 / span 4; grid-row: 1; align-self: center; padding: 3rem var(--gutter) 3rem 0; }
  .chapter-gl { grid-column: 6 / -1; grid-row: 1; border-top: 0; border-left: 1px solid var(--rule); }
  .chapter-gl::after { left: -1px; right: auto; top: 0; bottom: 0; width: 1px; height: auto; transform: scaleY(var(--p, 0)); transform-origin: top; }
  .chapter-gl::before { left: -5px; right: auto; top: 0; bottom: 0; width: 9px; height: auto; background-position: 0 calc(var(--p, 0) * 100%); background-size: 9px 1px; }
}
@media (min-width: 1024px) and (max-height: 799.98px) {
  .chapter-copy > .eyebrow { margin-bottom: 1.25rem; }
  .chapter-links { margin-top: 1.5rem; }
  .chapter-links a { min-height: 0; padding: 0.45rem 0; }
  .chapter-refs { margin-top: 1.25rem; }
  .chapter-refs li { padding: 0.3rem 0 0.35rem; }
  .chapter-refs .ref-desc { margin-top: 0.1rem; }
  .chapter-go { margin-top: 1.5rem; }
}
/* short desktop viewports (a 1366 laptop under browser chrome): the layer list carries the connected sheet on its own */
@media (min-width: 1024px) and (max-height: 699.98px) {
  .chapter-copy { padding-block: 1.5rem; }
}
@media (prefers-reduced-motion: no-preference) and (min-width: 1024px) and (max-height: 699.98px) {
  html.js .chapter:not(:has(> .chapter-stage > .gl-off)) .chapter-copy:has(> .chapter-refs) > .chapter-line { display: none; }
}

/* below 1024: the copy sits compact on top, the drawing fills the rest of the stage */
@media (max-width: 1023.98px) {
  .chapter-copy { padding: clamp(1.75rem, 5.5svh, 3.25rem) var(--margin) clamp(1rem, 2.6svh, 1.5rem); }
  .chapter-copy > * { max-width: 38rem; }
  .chapter-copy h2 { max-width: 18ch; }
  .chapter-gl { min-height: 52svh; }
  .chapter-copy > .eyebrow { margin-bottom: 0.9rem; }
  .chapter-line { margin-top: 0.7rem; font-size: 0.9375rem; line-height: 1.45; max-width: 40ch; }
  .chapter-links { display: flex; flex-wrap: wrap; gap: 0 1.1rem; margin-top: 0.85rem; border: 0; max-width: 38rem; }
  .chapter-links li { border: 0; }
  .chapter-links a { display: inline-flex; min-height: 32px; padding: 0; font-size: 0.875rem; text-decoration: underline 1px var(--datum); text-underline-offset: 0.28em; }
  .chapter-links a::before, .chapter-links a::after { content: none; }
  .chapter-links a:is(:hover, :focus-visible) { box-shadow: none; text-decoration: underline 2px var(--beam); }
  .chapter-go { margin-top: 0.6rem; font-size: 0.875rem; }
  .chapter-line + .chapter-go { margin-top: 0.85rem; }
  .chapter-refs + .chapter-go { margin-top: 1rem; }
}
/* below 1024, beside a pinned drawing, the layers collapse to one wrapped key — [n] layer — that names the drawing's markers,
   with the descriptor kept for screen readers; a tall tablet, reduced motion, or the copy alone (no script, no WebGL) keep the
   full list */
@media (prefers-reduced-motion: no-preference) and (max-width: 639.98px), (prefers-reduced-motion: no-preference) and (max-width: 1023.98px) and (max-height: 899.98px) {
  html.js .chapter:not(:has(> .chapter-stage > .gl-off)) .chapter-refs { display: flex; flex-wrap: wrap; gap: 0.15rem 1.1rem; margin-top: 0.85rem; border: 0; max-width: 38rem; }
  html.js .chapter:not(:has(> .chapter-stage > .gl-off)) .chapter-refs li {
    display: inline-flex; align-items: baseline; gap: 0.5em; padding: 0; border: 0; white-space: nowrap; font: 400 var(--t-note)/1.5 var(--mono); letter-spacing: 0.03em;
  }
  html.js .chapter:not(:has(> .chapter-stage > .gl-off)) .chapter-refs li::before { line-height: inherit; }
  html.js .chapter:not(:has(> .chapter-stage > .gl-off)) .chapter-refs .ref-layer { font: inherit; }
  html.js .chapter:not(:has(> .chapter-stage > .gl-off)) .chapter-refs .ref-desc {
    position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap;
  }
}
@media (min-width: 640px) and (max-width: 1023.98px) and (min-height: 900px) {
  .chapter-refs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: var(--gutter); max-width: 40rem; margin-top: 1.25rem; }
  .chapter-refs li { padding: 0.4rem 0 0.45rem; }
}
@media (max-width: 1023.98px) and (max-height: 700px) {
  .chapter-line { display: none; }
}
@media (max-width: 1023.98px) and (max-height: 500px) {
  .chapter-links { display: none; }
}
@media (prefers-reduced-motion: no-preference) and (max-width: 1023.98px) and (max-height: 500px) {
  html.js .chapter:not(:has(> .chapter-stage > .gl-off)) .chapter-refs { display: none; }
}

/* reduced motion: nothing pins; each sheet is a plain section and its drawing renders finished */
@media (prefers-reduced-motion: reduce) {
  .chapter { height: auto; }
  .chapter-stage { position: relative; height: auto; min-height: 92svh; }
  .chapter-gl::after, .chapter-gl::before { content: none; }
}
/* no script, or no WebGL: the chapter collapses to its copy */
html:not(.js) .chapter, .chapter:has(> .chapter-stage > .gl-off) { height: auto; }
html:not(.js) .chapter-stage, .chapter:has(> .chapter-stage > .gl-off) .chapter-stage { position: relative; height: auto; min-height: 0; padding-block: var(--space-block); }
html:not(.js) .chapter-gl, .chapter-gl.gl-off { display: none; }
@media (min-width: 1024px) {
  html:not(.js) .chapter-copy, .chapter:has(> .chapter-stage > .gl-off) .chapter-copy { grid-column: 2 / span 8; }
}
@media print {
  .chapter { height: auto; }
  .chapter-stage { position: static; height: auto; }
  /* the ink sheets print as ink on white: printers drop backgrounds, and paper-coloured type would vanish with them */
  .hero-gl, .chapter--ink, .closer {
    --bg: #fff; --bg-2: #fff; --fg: #000; --fg-2: #444; --rule: #bbb; --rule-strong: #000; --accent: #000; --reg: #000;
    background: none !important; color: #000 !important;
  }
  .hero-gl { min-height: 0; padding-top: 1.5rem; }
  .hero-gl::before { content: none; }
  .hero-gl :is(.hero-gl-h1, .route, .route-title), .closer h2 { color: #000 !important; }
  .hero-gl :is(.lede, .route-desc, .promise), .closer :is(.closer-note, .closer-promise) { color: #444 !important; }
  .route, .hero-gl-copy .promise { background: none; }
  .dx .xf { stroke: #000; }
}

/* ================================================================ home — the articles strip */

.home-strip { padding: clamp(3.5rem, 2rem + 5vw, 6.5rem) 0; }
.chapter--ink + .section::before { content: none; }   /* a paper sheet into the paper strip keeps its hairline */
.strip-line { font-size: clamp(1.625rem, 1.1rem + 1.7vw, 2.625rem); line-height: 1.05; letter-spacing: -0.025em; font-stretch: 90%; max-width: 20ch; }
.strip-go { display: inline-block; margin-top: 1.25rem; }
@media (min-width: 1024px) {
  .home-strip > .wrap > .eyebrow { grid-column: 1 / 5; position: static; }
  .home-strip > .wrap > .strip-line { grid-column: 5 / 11; grid-row: 1; align-self: last baseline; }
  .home-strip > .wrap > .strip-go { grid-column: 11 / -1; grid-row: 1; justify-self: end; align-self: last baseline; margin: 0; }
}

/* ================================================================ home — the closer */

.closer { padding: clamp(5rem, 3rem + 8vw, 10rem) 0; }
.closer-note { margin-top: 1.5rem; font-size: var(--t-lede); line-height: 1.45; max-width: 44ch; color: var(--fog); }
.on-ink p.closer-promise { margin-top: 1.5rem; color: var(--steel); max-width: none; }
/* >= 1024 the strip and the closer hang from c5, the line every chapter's drawing starts on */
@media (min-width: 1024px) {
  .closer > .wrap > .eyebrow { grid-column: 1 / 5; }
  .closer > .wrap > :not(.eyebrow) { grid-column: 5 / -1; }
}

/* ================================================================ lab pages only (web/_lab): delete with _lab before commit */

.band-ink {
  --bg: var(--ink); --bg-2: var(--ink-2); --fg: var(--paper); --fg-2: var(--fog); --rule: var(--line-dark);
  --rule-strong: var(--paper); --accent: var(--beam); --focus: var(--beam); background: var(--ink); color: var(--paper);
}
.gl-figure { position: relative; margin-top: 3rem; }
.gl-figure .gl-stage { width: 100%; aspect-ratio: 16 / 7; overflow: hidden; border: 1px solid var(--rule); background: var(--bg); }
.gl-figure--tall .gl-stage { aspect-ratio: 16 / 9; }
.gl-figure--band .gl-stage { aspect-ratio: 16 / 5.5; }
@media (max-width: 759.98px) {
  .gl-figure .gl-stage { aspect-ratio: 4 / 3.4; }
  .gl-figure--tall .gl-stage { aspect-ratio: 4 / 5; }
  .gl-figure--band .gl-stage { aspect-ratio: 4 / 3; }
}
.gl-figure figcaption { margin-top: 0.75rem; max-width: none; font-family: var(--mono); font-size: var(--t-note); letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-2); }

/* ================================================================ footer (unchanged from v1 by request) */

/* ---------- footer ---------- */
.site-foot { background: var(--ink); color: var(--steel); margin-top: var(--space-section); }
.site-foot .wrap { padding-top: 4rem; padding-bottom: 2.5rem; }
.foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2.5rem; padding-bottom: 3rem; border-bottom: 1px solid var(--line-dark); }
.site-foot img { width: 110px; }
.site-foot h4 { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--paper); font-weight: 500; margin-bottom: 1rem; }
.site-foot ul { list-style: none; }
.site-foot li { margin-bottom: 0.55rem; }
.foot-bottom a { font-size: inherit; }
.site-foot a { color: var(--steel); text-decoration: none; font-size: 0.9375rem; transition: color 150ms var(--ease); }
.site-foot a:hover { color: var(--paper); }
.foot-bottom { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding-top: 2rem; font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.05em; }

@media (max-width: 760px) {
  .foot-grid { grid-template-columns: 1fr 1fr; }
}

/* ================================================================ motion */

/* the hero x: the beam stroke draws once on load (the ink stroke is there from the first paint) */
@media (prefers-reduced-motion: no-preference) {
  html.js .hero-gl .dx .xr { stroke-dasharray: 1 1; animation: stroke-in 520ms var(--ease-draft) 250ms both; }
}
@keyframes stroke-in { 0% { stroke-dashoffset: 1; opacity: 0; } 1% { opacity: 1; } 100% { stroke-dashoffset: 0; opacity: 1; } }

/* scroll-driven, decorative marks only; the finished state is the default where unsupported */
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    :is(.section, .pillar):not(.on-ink)::before { animation: rule-draw linear both; animation-timeline: view(); animation-range: entry 0% entry 45%; }
    .proc::before { animation: rule-draw linear both; animation-timeline: view(); animation-range: entry 5% cover 35%; }
  }
}
@keyframes rule-draw { from { transform: scaleX(0); } to { transform: scaleX(1); } }

/* cross-document view transitions: a short crossfade, inner page titles morph */
@media (prefers-reduced-motion: no-preference) {
  @view-transition { navigation: auto; }
  .hero h1 { view-transition-name: title; }
  ::view-transition-old(root), ::view-transition-new(root) { animation-duration: 180ms; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

@media (forced-colors: active) {
  .hero-gl-h1 .dx { display: none; }
  .hero-gl-h1 .vh { position: static !important; width: auto; height: auto; margin: 0; clip: auto; clip-path: none; overflow: visible; white-space: normal; }
}

/* ================================================================ print */
@media print {
  .site-head, .site-foot, .gl-stage { display: none !important; }
  .on-ink { background: none !important; color: #000 !important; }
}

/* ---- research register (inner pages) ---- */
/* the technology we design in, set as a parts list: [n] marker · layer · one plain sentence · the standard it answers to
   in mono. A standards table with its dates, and the connected system sheet, mounted on inner pages by
   /assets/page-gl.js. Scoped tokens only, so the same rules hold on paper and on ink. No academic citations (v5). */

/* the rows: an ordered list; [n] matches the marker in the drawing */
.reg-rows { list-style: none; margin-top: 2.5rem; border-top: 1px solid var(--rule-strong); counter-reset: reg; }
.reg-rows > li { counter-increment: reg; display: grid; grid-template-columns: minmax(0, 1fr); row-gap: 0.4rem; padding: 1.05rem 0 1.15rem; border-bottom: 1px solid var(--rule); min-width: 0; }
.reg-rows .reg-k {
  display: block; margin: 0; max-width: none;
  font-family: var(--mono); font-size: var(--t-mono); font-weight: 500; line-height: 1.45; letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg);
}
/* two-tier label, like a parts-list entry: the layer, then the technology under it in the secondary tone (never a
   mid-word break such as "user- / replaceable") */
.reg-rows .reg-k > span { display: block; margin-top: 0.1rem; font-weight: 400; color: var(--fg-2); }
.reg-rows .reg-k .mu { text-transform: none; }   /* μ stays the micro prefix; uppercased it would read as an M */
.reg-rows--num .reg-k { display: grid; grid-template-columns: 1.9rem minmax(0, 1fr); column-gap: 0.75rem; align-items: start; align-content: start; }
.reg-rows--num .reg-k > span { grid-column: 2; }
.reg-rows--num .reg-k::before {
  content: "[" counter(reg) "]"; content: "[" counter(reg) "]" / "";
  grid-row: 1 / span 2; color: var(--accent); letter-spacing: 0.04em; font-variant-numeric: tabular-nums;
}
.reg-rows .reg-t { margin: 0; max-width: 62ch; font-size: 1rem; line-height: 1.55; color: var(--fg); text-wrap: pretty; }
.reg-rows .reg-c { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.45rem 1.1rem; margin: 0.15rem 0 0; max-width: none; font-family: var(--mono); font-size: var(--t-note); line-height: 1.5; letter-spacing: 0.03em; color: var(--fg-2); }
.reg-rows .reg-c > * { min-width: 0; }
/* a related note reads as a sentence (sans), with its standard in mono like the first */
.reg-rows .reg-also { flex-basis: 100%; margin-top: 0.3rem; max-width: 66ch; font-family: var(--sans); font-size: 0.875rem; line-height: 1.5; letter-spacing: 0; color: var(--fg-2); text-wrap: pretty; }
.reg-rows .reg-also > b { font-family: var(--mono); font-size: var(--t-note); font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg); margin-right: 0.6rem; }
.reg-rows .reg-also .reg-std { font-family: var(--mono); font-size: var(--t-note); letter-spacing: 0.03em; white-space: nowrap; }
.reg-rows .reg-std { color: var(--fg); text-decoration: underline 1px var(--datum); text-underline-offset: 0.3em; }
.reg-rows .reg-std:is(:hover, :focus-visible) { text-decoration: underline 2px var(--beam); }
.reg-rows .reg-c > span > .reg-std + .reg-std { margin-left: 0.6rem; }   /* two standards side by side stay 24 px apart as targets */
@media (min-width: 760px) {
  .reg-rows > li { grid-template-columns: 15rem minmax(0, 1fr); column-gap: var(--gutter); }
  .reg-rows .reg-k { grid-row: 1 / span 2; padding-top: 0.2rem; }
}
/* the narrow rail range: the labels give the sentences room (every layer name still fits on one line) */
@media (min-width: 760px) and (max-width: 1179.98px) { .reg-rows > li { grid-template-columns: 13rem minmax(0, 1fr); } }
.reg-rows + .btn-row { margin-top: 1.75rem; }
.prose .reg-rows { margin-top: 1.25rem; }
@media (min-width: 760px) { .prose .reg-rows > li { grid-template-columns: 11.5rem minmax(0, 1fr); } }

/* the standards table: id · standard · what it sets · dates. Below 760 each row stacks (roles keep the semantics) */
.reg-table { width: 100%; margin-top: 2.5rem; border-collapse: collapse; font-size: 0.9375rem; line-height: 1.5; }
.reg-table caption {
  caption-side: bottom; padding-top: 0.85rem; text-align: left;
  font-family: var(--mono); font-size: var(--t-note); line-height: 1.5; letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-2);
}
.reg-table thead th {
  padding: 0 1rem 0.6rem 0; border-bottom: 1px solid var(--rule-strong); text-align: left; vertical-align: bottom;
  font-family: var(--mono); font-size: var(--t-note); font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; color: var(--fg-2);
}
.reg-table :is(tbody th, td) { padding: 0.95rem 1.25rem 1rem 0; border-bottom: 1px solid var(--rule); text-align: left; vertical-align: top; }
.reg-table :is(th, td):last-child { padding-right: 0; }
.reg-table .reg-id { width: 3.25rem; font-family: var(--mono); font-size: var(--t-mono); font-weight: 500; letter-spacing: 0.06em; color: var(--accent); }
.reg-table tbody th { width: 30%; font-weight: 560; color: var(--fg); }
.reg-table tbody th small { display: block; margin-top: 0.2rem; font-family: var(--mono); font-size: var(--t-note); font-weight: 400; letter-spacing: 0.04em; color: var(--fg-2); }
.reg-table td { color: var(--fg-2); }
.reg-table td.reg-when { width: 11rem; font-family: var(--mono); font-size: var(--t-note); line-height: 1.55; letter-spacing: 0.04em; color: var(--fg); font-variant-numeric: tabular-nums; }
/* a small schedule: the event in the secondary tone, the date in a column of its own */
.reg-when span { display: grid; grid-template-columns: 5rem auto; column-gap: 0.5rem; color: var(--fg-2); }
.reg-when span + span { margin-top: 0.25rem; }
.reg-when b { font-weight: 500; color: var(--fg); white-space: nowrap; }
.reg-rows > li[id], .reg-table tbody tr[id] { scroll-margin-top: 2rem; }
.reg-table tbody tr:target { background: var(--bg-2); }
.reg-table tbody tr:target .reg-id { color: var(--fg); }   /* beam-deep on bone is 4.24:1 */
@media (max-width: 759.98px) {
  .reg-table, .reg-table tbody { display: block; }
  .reg-table thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
  .reg-table tbody tr { display: grid; grid-template-columns: 2.6rem minmax(0, 1fr); column-gap: 0.5rem; row-gap: 0.35rem; padding: 0.95rem 0 1rem; border-bottom: 1px solid var(--rule); }
  .reg-table tbody tr:first-child { border-top: 1px solid var(--rule-strong); }
  .reg-table :is(tbody th, td) { width: auto !important; padding: 0; border: 0; }
  .reg-table .reg-id { grid-column: 1; grid-row: 1 / span 3; padding-top: 0.15rem; }
  .reg-table tbody th { grid-column: 2; grid-row: 1; }
  .reg-table td { grid-column: 2; grid-row: 3; }
  .reg-table td.reg-when { grid-row: 2; }
  .reg-table caption { display: block; padding: 0 0 0.65rem; }
}

/* the drawing: a fixed sheet (the page never jumps when it mounts), registration ticks at the corners; with no script
   or no WebGL the whole figure goes — the rows below it carry the same content */
.reg-fig { position: relative; margin-top: 2.75rem; }
.reg-fig .page-gl { width: 100%; aspect-ratio: 16 / 10; overflow: hidden; border: 1px solid var(--rule); background: var(--bg); }
.reg-fig .page-gl::after {
  content: ""; position: absolute; inset: 8px; z-index: 3; pointer-events: none;
  background:
    linear-gradient(var(--fg), var(--fg)) left top / 12px 1px no-repeat,
    linear-gradient(var(--fg), var(--fg)) left top / 1px 12px no-repeat,
    linear-gradient(var(--fg), var(--fg)) right top / 12px 1px no-repeat,
    linear-gradient(var(--fg), var(--fg)) right top / 1px 12px no-repeat,
    linear-gradient(var(--fg), var(--fg)) left bottom / 12px 1px no-repeat,
    linear-gradient(var(--fg), var(--fg)) left bottom / 1px 12px no-repeat,
    linear-gradient(var(--fg), var(--fg)) right bottom / 12px 1px no-repeat,
    linear-gradient(var(--fg), var(--fg)) right bottom / 1px 12px no-repeat;
}
.reg-fig figcaption {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.15rem 1.5rem; margin-top: 0.75rem; max-width: none;
  font-family: var(--mono); font-size: var(--t-note); line-height: 1.5; letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-2);
}
/* a plate caption: the sheet's name in full tone, what it shows, and the honesty note held to the frame's right edge */
.reg-fig figcaption > span:first-child { color: var(--fg); font-weight: 500; }
.reg-fig figcaption > span:last-child { margin-left: auto; }
@media (max-width: 759.98px) { .reg-fig figcaption { display: block; } .reg-fig figcaption > span { display: block; } }
@media (max-width: 759.98px) { .reg-fig .page-gl { aspect-ratio: auto; height: clamp(330px, 94vw, 520px); } }
@media (min-width: 1024px) {
  .section > .wrap > .reg-fig { grid-column: 1 / -1; }
  .section:has(> .wrap > .reg-fig) > .wrap > .eyebrow { grid-row: 1; position: static; }
}
html:not(.js) .reg-fig, .reg-fig:has(> .gl-off) { display: none; }
@media print { .reg-fig { display: none; } }