/* FreshContext — working drawings.
   Line types follow BS 8888: continuous = live, hidden (dashed) = built in the lab,
   chain (long-short) = next. Lime is annotation ink: what is under examination.

   Written phone first. The base rules are the phone; each layer above adds to it:
     @media (min-width: 761px)   tablet
     @media (min-width: 1081px)  desk
     @media (min-width: 1281px)  wide
   Nothing on any screen is set below --fs-label (13px). */

@font-face { font-family: "Archivo"; src: url("fonts/archivo-normal.woff2") format("woff2");
  font-weight: 100 900; font-stretch: 62% 125%; font-style: normal; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url("fonts/jetbrains-mono-normal.woff2") format("woff2");
  font-weight: 400 700; font-style: normal; font-display: swap; }

@font-face { font-family: "Nunito Sans"; src: url("fonts/nunito-sans-normal.woff2") format("woff2");
  font-weight: 300 800; font-style: normal; font-display: swap; }
@font-face { font-family: "Nunito Sans"; src: url("fonts/nunito-sans-italic.woff2") format("woff2");
  font-weight: 300 800; font-style: italic; font-display: swap; }

:root {
  --ground: #0a0a0b;
  --field: #0e0e10;
  --plate: #131316;
  --bone: #efede3;
  --bone-2: rgba(239, 237, 227, 0.8);
  --dim: rgba(239, 237, 227, 0.6);
  --faint: rgba(239, 237, 227, 0.36);
  --rule: rgba(239, 237, 227, 0.14);
  --rule-2: rgba(239, 237, 227, 0.28);
  --signal: #c8ff3d;
  --signal-ink: #0a0a0b;
  --ink-faint: var(--dim);

  --dash-lab: 7 5;
  --dash-next: 18 5 3 5;

  --sans: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --voice: "Avenir Next", Avenir, "Nunito Sans", "Segoe UI", system-ui, sans-serif; /* the machine's column */

  --frame: 6px;
  --gutter: 20px;
  --max: 1520px;
  --head: 60px;

  --fs-body: 17.5px;   /* running text */
  --fs-ui: 16px;       /* secondary text, table cells, list rows */
  --fs-meta: 14.5px;   /* mono meta: provenance, dates, ids */
  --fs-label: 13px;    /* uppercase engineering lettering, the floor */
  --fs-lede: clamp(20px, 1.6vw, 25px);
  --lh-body: 1.62;
}
@media (min-width: 761px) {
  :root { --frame: 12px; --gutter: clamp(28px, 3.2vw, 48px); --head: 66px; }
}
@media (min-width: 1081px) {
  :root { --fs-body: 18.5px; --fs-ui: 16.5px; --fs-meta: 15px; --fs-label: 13.5px; }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-padding-top: calc(var(--head) + 24px); }
body {
  margin: 0; background: var(--ground); color: var(--bone);
  font-family: var(--sans); font-size: var(--fs-body); line-height: var(--lh-body); font-stretch: 100%;
  font-variant-numeric: lining-nums tabular-nums;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.22em; }
a:hover { color: var(--signal); }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; }
::selection { background: var(--signal); color: var(--signal-ink); }
p { margin: 0 0 1em; }
h1, h2, h3, h4 { margin: 0; font-weight: 800; line-height: 1; }
code { font-family: var(--mono); font-size: 0.88em; color: var(--bone-2); }

.skip { position: absolute; left: -9999px; top: 8px; z-index: 50; background: var(--signal); color: var(--signal-ink);
  padding: 12px 16px; font-weight: 700; text-decoration: none; }
.skip:focus { left: 20px; }
.vh { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.v-dk { display: none; }
@media (min-width: 761px) { .v-ph { display: none; } .v-dk { display: block; } }

/* ── the sheet border ─────────────────────────────────────────────── */
.sheet-frame { position: fixed; inset: var(--frame); border: 1px solid var(--rule-2); pointer-events: none; z-index: 40; }
.sheet-frame::before { content: ""; position: absolute; inset: 4px; border: 1px solid var(--rule); display: none; }
.sheet-frame i { position: absolute; width: 13px; height: 13px; border: 1px solid var(--rule-2); border-radius: 50%; background: var(--ground); display: none; }
.sheet-frame i::before, .sheet-frame i::after { content: ""; position: absolute; background: var(--rule-2); }
.sheet-frame i::before { left: 50%; top: -5px; bottom: -5px; width: 1px; }
.sheet-frame i::after { top: 50%; left: -5px; right: -5px; height: 1px; }
.sheet-frame i:nth-child(1) { left: -7px; top: -7px; } .sheet-frame i:nth-child(2) { right: -7px; top: -7px; }
.sheet-frame i:nth-child(3) { left: -7px; bottom: -7px; } .sheet-frame i:nth-child(4) { right: -7px; bottom: -7px; }
.sheet { padding: var(--frame); }
@media (min-width: 761px) { .sheet-frame::before, .sheet-frame i { display: block; } }

/* ── lettering ────────────────────────────────────────────────────── */
.label, .kicker {
  font-family: var(--sans); font-stretch: 116%; font-weight: 600; font-size: var(--fs-label); line-height: 1.45;
  letter-spacing: 0.13em; text-transform: uppercase; color: var(--dim);
}
.kicker { color: var(--bone-2); display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.kicker b { font-weight: 700; color: var(--bone); }
.tag { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--rule-2); padding: 6px 10px 5px;
  font-stretch: 116%; font-weight: 700; font-size: var(--fs-label); letter-spacing: 0.13em; text-transform: uppercase; color: var(--bone); }

/* ── title strip ──────────────────────────────────────────────────── */
.strip {
  position: sticky; top: var(--frame); z-index: 30; background: var(--ground);
  display: grid; grid-template-columns: 1fr auto; align-items: stretch;
  border-bottom: 1px solid var(--rule-2); min-height: var(--head); margin: 0 1px;
}
.strip > * { display: flex; align-items: center; }
.strip .mark { gap: 14px; padding: 0 14px; text-decoration: none; }
.strip .mark svg { width: 34px; height: 34px; flex: none; }
.strip .mark span { font-stretch: 122%; font-weight: 800; font-size: 15px; letter-spacing: 0.2em; text-transform: uppercase; }
.strip .mark small { display: none; font-weight: 600; font-size: var(--fs-label); letter-spacing: 0.14em; color: var(--dim); margin-top: 3px; }
.strip nav { position: fixed; top: calc(var(--frame) + var(--head)); left: var(--frame); right: var(--frame); flex-direction: column; align-items: stretch;
  background: var(--ground); border-bottom: 1px solid var(--rule-2); display: none; z-index: 31; }
.strip nav a { font-stretch: 116%; font-weight: 650; font-size: 15px; letter-spacing: 0.14em; text-transform: uppercase;
  text-decoration: none; color: var(--bone-2); padding: 20px 22px; border-bottom: 1px solid var(--rule); }
.strip nav a:hover { color: var(--bone); }
.strip nav a[aria-current="page"] { color: var(--signal); }
.strip.open nav { display: flex; }
.strip .dwg { display: none; border-left: 1px solid var(--rule); padding: 0 20px; gap: 18px; }
.strip .dwg div { line-height: 1.45; }
.strip .dwg b { color: var(--bone); font-weight: 700; }
.strip .menu { display: flex; align-items: center; gap: 10px; background: none; border: 0; border-left: 1px solid var(--rule); color: var(--bone); padding: 0 20px; font: inherit;
  font-stretch: 116%; font-weight: 700; font-size: 14px; letter-spacing: .14em; text-transform: uppercase; cursor: pointer; min-width: 48px; }
@media (min-width: 761px) {
  .strip .mark { padding: 0 22px 0 18px; }
  .strip .mark small { display: block; }
}
@media (min-width: 1081px) {
  .strip { grid-template-columns: auto 1fr auto; }
  .strip .mark { border-right: 1px solid var(--rule); }
  .strip nav { position: static; display: flex; flex-direction: row; justify-content: center; align-items: center; gap: clamp(16px, 2.2vw, 40px);
    padding: 0 16px; background: none; border: 0; }
  .strip nav a { font-size: 13.5px; padding: 22px 0 19px; border-bottom: 2px solid transparent; white-space: nowrap; }
  .strip nav a[aria-current="page"] { color: var(--bone); border-bottom-color: var(--signal); }
  .strip .menu { display: none; }
}
@media (min-width: 1281px) { .strip .dwg { display: flex; } .strip .dwg div:nth-child(2) { display: none; } }
@media (min-width: 1600px) { .strip .dwg div:nth-child(2) { display: block; } }

/* ── layout primitives ────────────────────────────────────────────── */
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.zone { border-bottom: 1px solid var(--rule); position: relative; }
.zone-head { display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 10px 16px;
  padding: 18px 0; border-bottom: 1px solid var(--rule); }
.zone-head .rule { height: 1px; background: var(--rule); }
.zone-head .label { grid-column: 1 / -1; }
.zone-body { padding: 44px 0 52px; }
@media (min-width: 761px) {
  .zone-head { grid-template-columns: auto 1fr auto; }
  .zone-head .label { grid-column: auto; }
  .zone-body { padding: clamp(56px, 6vw, 96px) 0; }
}

.field { background-color: var(--field);
  background-image: linear-gradient(var(--rule) 1px, transparent 1px), linear-gradient(90deg, var(--rule) 1px, transparent 1px);
  background-size: 32px 32px; background-position: -1px -1px; }
.field.quiet { background-image: linear-gradient(rgba(239,237,227,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(239,237,227,.05) 1px, transparent 1px); }

.cols-2 { display: grid; grid-template-columns: minmax(0, 1fr); gap: 28px; }
.split { display: grid; grid-template-columns: minmax(0, 1fr); gap: 32px; align-items: start; }
.split .side h2, .split .side h3 { margin: 4px 0 18px; }
.split .side p { color: var(--bone-2); }
.stack { display: grid; grid-template-columns: minmax(0, 1fr); gap: clamp(32px, 3vw, 48px); min-width: 0; }
@media (min-width: 761px) { .cols-2 { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(24px, 3vw, 48px); } }
@media (min-width: 1081px) {
  .split { grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(36px, 4vw, 72px); }
  .split .side { position: sticky; top: calc(var(--head) + 40px); }
  .split .side h2, .split .side h3 { margin: 16px 0 18px; }
  .split .side .d-l { font-size: clamp(32px, 3.1vw, 58px); hyphens: auto; -webkit-hyphens: auto; }
}

/* display type */
.d-xl { font-stretch: 112%; font-weight: 900; text-transform: uppercase; letter-spacing: -0.015em; line-height: 0.9;
  font-size: clamp(32px, 9.4vw, 52px); }
.d-l { font-stretch: 110%; font-weight: 850; text-transform: uppercase; letter-spacing: -0.01em; line-height: 0.93;
  font-size: clamp(32px, 8.6vw, 48px); }
.d-m { font-stretch: 108%; font-weight: 800; letter-spacing: -0.005em; line-height: 1.05; font-size: clamp(25px, 2.4vw, 38px); }
.d-s { font-stretch: 106%; font-weight: 750; line-height: 1.15; font-size: clamp(20px, 1.6vw, 25px); }
@media (min-width: 761px) {
  .d-xl { font-size: clamp(52px, 7.2vw, 128px); }
  .d-l { font-size: clamp(44px, 4.6vw, 76px); }
}
.hollow { color: transparent; -webkit-text-stroke: 1.5px var(--bone); }
.hollow.thin { -webkit-text-stroke-width: 1px; }
.examined { color: var(--signal); }
.lede { font-size: var(--fs-lede); line-height: 1.5; color: var(--bone-2); max-width: 46ch; }
.lede b { color: var(--bone); font-weight: 650; }
.prose-col { max-width: 64ch; color: var(--bone-2); }
.prose-col b, .prose-col strong { color: var(--bone); font-weight: 650; }

/* ── controls ─────────────────────────────────────────────────────── */
.btns { display: flex; flex-wrap: wrap; gap: 14px; }
.btn {
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 14px; min-height: 56px; padding: 0 24px;
  border: 1px solid var(--bone); outline-offset: 4px; text-decoration: none; color: var(--bone);
  font-stretch: 116%; font-weight: 700; font-size: 14px; letter-spacing: 0.14em; text-transform: uppercase;
  transition: background-color .18s, color .18s, border-color .18s;
}
.btn::after { content: ""; position: absolute; inset: 3px; border: 1px solid var(--rule-2); pointer-events: none; }
.btn .arr { font-family: var(--mono); letter-spacing: 0; font-size: 16px; }
.btn.primary { border-color: var(--signal); color: var(--signal); }
.btn.primary::after { border-color: rgba(200, 255, 61, 0.34); }
.btn.primary:hover { background: var(--signal); color: var(--signal-ink); }
.btn.primary:hover::after { border-color: rgba(10,10,11,.3); }
.btn:hover { color: var(--signal); border-color: var(--signal); }
.btns .btn { flex: 1 1 260px; }
@media (min-width: 761px) { .btns .btn { flex: 0 0 auto; } }
.textlink { display: inline-block; font-stretch: 116%; font-weight: 700; font-size: 14px; letter-spacing: 0.13em; text-transform: uppercase; text-decoration: none;
  border-bottom: 1px solid var(--rule-2); padding: 8px 0 5px; }
.textlink:hover { border-bottom-color: var(--signal); }

/* line-type swatches (HTML) */
.lt { display: inline-block; width: 46px; height: 10px; vertical-align: middle; flex: none; }
.lt line { stroke: var(--bone); stroke-width: 2; }
.lt.lab line { stroke-dasharray: var(--dash-lab); }
.lt.next line { stroke-dasharray: var(--dash-next); }
.legend { display: flex; flex-wrap: wrap; gap: 10px 26px; align-items: center; }
.legend span { display: inline-flex; gap: 10px; align-items: center; }

/* ── HERO ─────────────────────────────────────────────────────────── */
.hero { display: grid; grid-template-columns: minmax(0, 1fr); border-bottom: 1px solid var(--rule-2); }
.hero-copy { padding: 36px var(--gutter) 32px; display: flex; flex-direction: column; gap: 26px; border-bottom: 1px solid var(--rule); }
.hero-copy .d-hero span { display: block; }
.d-hero { font-stretch: 108%; font-weight: 900; text-transform: uppercase; letter-spacing: -0.02em; line-height: 0.86;
  font-size: clamp(44px, 12.4vw, 64px); margin: 0; }
.hero-copy .lede { margin: 0; }
.hero-copy .write { padding-top: 18px; border-top: 1px solid var(--rule); display: flex; justify-content: space-between; gap: 8px 16px; flex-wrap: wrap; }
.hero-fig { position: relative; display: grid; grid-template-rows: auto 1fr auto; }
.fig-cap { display: flex; justify-content: space-between; align-items: baseline; gap: 6px 16px; flex-wrap: wrap; padding: 18px var(--gutter) 0; }
.fig-cap .figno { font-stretch: 116%; font-weight: 800; font-size: 14px; letter-spacing: 0.16em; text-transform: uppercase; }
.fig-cap .figno b { color: var(--bone); font-weight: 800; }
.hero-fig .drawing { padding: 8px 4px; display: grid; grid-template-columns: minmax(0, 1fr); }
.hero-fig .legend { padding: 16px var(--gutter) 20px; border-top: 1px solid var(--rule); }
@media (min-width: 761px) {
  .hero-copy { padding: clamp(40px, 5vw, 72px) var(--gutter) 40px; gap: 30px; }
  .d-hero { font-size: clamp(64px, 9vw, 96px); }
  .hero-fig .drawing { padding: 8px clamp(8px, 1.6vw, 24px); }
}
@media (min-width: 1081px) {
  .hero { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); min-height: calc(100svh - var(--head) - 2 * var(--frame)); }
  .hero-copy { border-bottom: 0; border-right: 1px solid var(--rule); }
  .hero-copy .write { margin-top: auto; }
  .d-hero { font-size: clamp(54px, min(5.2vw, 9.8svh), 104px); line-height: 0.84; }
}

/* parts register: names and facts for fig. 1's numerals. Below the drawing, beside it on wide screens */
.register { padding: 6px var(--gutter) 10px; border-top: 1px solid var(--rule); }
.register > .label { margin: 12px 0 2px; }
.register ol { list-style: none; padding: 0; margin: 0; }
.register li a, .register li > span { display: grid; grid-template-columns: 38px minmax(0, 1fr) 46px; gap: 12px; align-items: center; padding: 14px 0;
  border-bottom: 1px solid var(--rule); text-decoration: none; font-size: var(--fs-ui); line-height: 1.3; }
.register li:last-child a, .register li:last-child > span { border-bottom: 0; }
.register li .no { font-stretch: 112%; font-weight: 800; font-size: 17px; color: var(--bone); }
.register li .nm { font-weight: 650; }
.register li .nm small { display: block; font-weight: 400; color: var(--dim); font-size: var(--fs-meta); margin-top: 3px; }
.register li .lt { width: 46px; }
.register li.is-on .no, .register li.is-on .nm { color: var(--signal); }
.register li.is-on .lt line { stroke: var(--signal); }
@media (min-width: 761px) { .register ol { display: grid; grid-template-columns: 1fr 1fr; column-gap: 32px; }
  .register li:nth-last-child(2) a, .register li:nth-last-child(2) > span { border-bottom: 0; } }
/* desks: the drawing fills its half of the screen; the register sits under it as a compact grid */
@media (min-width: 1081px) {
  .hero-fig { min-width: 0; grid-template-rows: auto minmax(0, 1fr) auto; }
  /* the drawing takes whatever height the hero row has; it must not size the row itself */
  .hero-fig .drawing { contain: size; min-height: 520px; grid-template-rows: minmax(0, 1fr) auto; padding: 4px clamp(12px, 1.6vw, 28px) 0; }
  .hero-fig .fig1 { width: 100%; height: 100%; max-height: none; min-height: 0; }
  .register { padding: 4px 0 6px; }
  .register > .label { display: none; }
  .register ol { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 24px; }
  .register li a, .register li > span { grid-template-columns: 34px minmax(0, 1fr); grid-template-areas: "no nm" "lt nm"; row-gap: 4px;
    align-items: start; padding: 9px 0; font-size: 15px; }
  .register li .no { grid-area: no; font-size: 16px; }
  .register li .nm { grid-area: nm; }
  .register li .nm small { font-size: 13.5px; margin-top: 2px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
  .hero-fig .legend { gap: 8px 22px; padding: 12px var(--gutter) 14px; }
  .hero-fig .legend span { white-space: nowrap; }
  .register li .lt { grid-area: lt; width: 26px; }
  .register li:nth-last-child(-n+2) a, .register li:nth-last-child(-n+2) > span { border-bottom: 0; }
}
@media (min-width: 1281px) {
  .register ol { grid-template-columns: repeat(4, minmax(0, 1fr)); column-gap: 20px; }
  .register li:nth-last-child(-n+4) a, .register li:nth-last-child(-n+4) > span { border-bottom: 0; }
}

/* fig. 1 drawing */
.fig1 { width: 100%; height: auto; overflow: visible; }
.fig1 .part path, .fig1 .part ellipse, .fig1 .part line, .fig1 .part polygon, .fig1 .part rect {
  stroke: var(--bone); stroke-width: 1.15; stroke-linejoin: round; vector-effect: non-scaling-stroke; transition: stroke .2s, stroke-width .2s; }
.fig1 .part .fill { fill: var(--ground); }
.fig1 .part .hatch { fill: url(#hatch); }
.fig1 .part .detail { stroke-width: 0.8; stroke: var(--bone-2); }
.fig1 .ln-lab path, .fig1 .ln-lab ellipse, .fig1 .ln-lab line, .fig1 .ln-lab polygon { stroke-dasharray: var(--dash-lab); }
.fig1 .ln-next path, .fig1 .ln-next ellipse, .fig1 .ln-next line, .fig1 .ln-next polygon { stroke-dasharray: var(--dash-next); }
.fig1 .ln-next .fill { fill: var(--field); }
.fig1 .ln-next .hatch { fill: none; }
.fig1 .axis { stroke: var(--faint); stroke-width: 1; stroke-dasharray: 22 5 3 5; vector-effect: non-scaling-stroke; fill: none; }
.fig1 .proj { stroke: var(--faint); stroke-width: 1; stroke-dasharray: 3 4; vector-effect: non-scaling-stroke; fill: none; }
.fig1 .leader { fill: none; stroke: var(--bone-2); stroke-width: 1; vector-effect: non-scaling-stroke; transition: stroke .2s, stroke-width .2s, d .35s cubic-bezier(.2,.8,.2,1); }
.fig1 .leader-end { fill: var(--bone-2); transition: fill .2s; }
.fig1 .num { font-family: var(--sans); font-stretch: 112%; font-weight: 800; fill: var(--bone); cursor: pointer; transition: fill .2s; }
.fig1 .num-cap { font-family: var(--sans); font-stretch: 112%; font-weight: 650; letter-spacing: 0.1em; fill: var(--bone-2); text-transform: uppercase; }
.fig1 .hit { fill: transparent; cursor: pointer; }
.fig1 .num-fact { font-family: var(--mono); fill: var(--dim); }
.fig1 a, .fig1 g[tabindex] { outline: none; }
.fig1 a:focus-visible .hit, .fig1 g[tabindex]:focus-visible .hit { stroke: var(--signal); stroke-width: 1.5; }
.fig1 .is-on .num-fact, .fig1 .is-on .num-cap { fill: var(--bone); }
.fig1 .is-on path, .fig1 .is-on ellipse, .fig1 .is-on line, .fig1 .is-on polygon { stroke: var(--signal); stroke-width: 1.8; }
.fig1 .is-on.leader { stroke: var(--signal); stroke-width: 1.6; }
.fig1 .is-on .leader-end, .fig1 .leader-end.is-on { fill: var(--signal); }
.fig1 .num.is-on { fill: var(--signal); }
.fig1 a:hover .num-cap { fill: var(--bone); }
.fig1 .part { animation: explode 1.4s cubic-bezier(.16,.84,.24,1) both; animation-delay: var(--dl, 0s); }
@keyframes explode { from { transform: translate(var(--ax, 0), var(--ay, 0)); } }
@keyframes fig-fade { from { opacity: 0; } }
@media (prefers-reduced-motion: no-preference) {
  .fig1 .axes { animation: fig-fade .6s 1.1s both; }
  .fig1 .leaders { animation: fig-fade .7s 1.25s both; }
}
@media (prefers-reduced-motion: reduce) { .fig1 .part { animation: none; } }

/* measured strip */
.measures { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-bottom: 1px solid var(--rule-2); }
.measures > div { padding: 22px var(--gutter) 24px; border-right: 1px solid var(--rule); border-top: 1px solid var(--rule); }
.measures > div:nth-child(2n) { border-right: 0; }
.measures > div:nth-child(-n+2) { border-top: 0; }
.measures > div:last-child { grid-column: 1 / -1; }
.measures .n { display: block; font-stretch: 112%; font-weight: 900; font-size: clamp(34px, 3.4vw, 56px); line-height: 1; letter-spacing: -0.01em; }
.measures .n.zero { color: var(--signal); }
.measures .label { display: block; margin-top: 10px; }
@media (min-width: 761px) {
  .measures { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .measures > div { border-top: 0; border-right: 1px solid var(--rule); }
  .measures > div:nth-child(2n) { border-right: 1px solid var(--rule); }
  .measures > div:last-child { grid-column: auto; border-right: 0; }
}

/* notes block */
.notes { display: grid; grid-template-columns: minmax(0, 1fr); gap: 28px; }
.notes ol { list-style: none; margin: 0; padding: 0; counter-reset: n; display: grid; gap: 0; }
.notes li { counter-increment: n; display: grid; grid-template-columns: 34px minmax(0, 1fr); gap: 12px; padding: 22px 0; border-top: 1px solid var(--rule); color: var(--bone-2); font-size: clamp(18px, 1.35vw, 21px); line-height: 1.55; }
.notes li::before { content: counter(n) "."; font-stretch: 112%; font-weight: 800; color: var(--bone); font-size: 17px; padding-top: 2px; }
.notes li b { color: var(--bone); font-weight: 650; }
.notes li .legend { margin-top: 14px; }
@media (min-width: 1081px) {
  .notes { grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(28px, 5vw, 80px); }
  .notes li { grid-template-columns: 54px minmax(0, 1fr); gap: 16px; }
}

/* rig elevation: the ten seated verbs */
.rig { border: 1px solid var(--bone); position: relative; padding: 10px; }
.rig::before, .rig::after { content: ""; position: absolute; top: 14px; bottom: 14px; width: 10px; display: none;
  background: radial-gradient(circle, var(--rule-2) 2px, transparent 2.5px) 0 0 / 10px 22px repeat-y; }
.rig::before { left: 2px; } .rig::after { right: 2px; }
.rig-bays { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--rule-2); border-left: 1px solid var(--rule-2); }
.bay { border-right: 1px solid var(--rule-2); border-bottom: 1px solid var(--rule-2); padding: 14px 14px 16px; display: flex; flex-direction: column; gap: 9px; min-height: 172px; position: relative; background: var(--ground); transition: background .2s; }
.bay:hover { background: var(--plate); }
.bay .vb { font-stretch: 104%; font-weight: 900; font-size: 18px; text-transform: uppercase; letter-spacing: 0; line-height: 1; padding-right: 26px; }
.bay .vb small { display: block; font-size: var(--fs-label); font-weight: 600; letter-spacing: 0.12em; color: var(--dim); margin-top: 6px; }
.bay .seat { font-family: var(--mono); font-size: 14px; color: var(--bone); margin-top: auto; overflow-wrap: anywhere; }
.bay .meas { font-size: 15px; line-height: 1.42; color: var(--bone-2); }
.bay .bayno { position: absolute; top: 14px; right: 12px; font-stretch: 112%; font-weight: 700; font-size: var(--fs-label); color: var(--faint); }
.bay.benched { border-style: dashed; }
.bay.benched .vb { color: transparent; -webkit-text-stroke: 1px var(--bone); }
.rig-foot { display: grid; grid-template-columns: minmax(0, 1fr); gap: 0; margin: 12px 0 0; border: 1px dashed var(--rule-2); }
.rig-foot > div { padding: 14px 16px; display: flex; gap: 8px 14px; align-items: baseline; flex-wrap: wrap; }
.rig-foot > div + div { border-top: 1px dashed var(--rule-2); }
.rig-foot .vb { font-stretch: 112%; font-weight: 900; font-size: 20px; text-transform: uppercase; }
.rig-foot .vb.hollow { -webkit-text-stroke: 1px var(--bone); }
.rig-foot span { color: var(--bone-2); font-size: 15.5px; }
@media (min-width: 761px) {
  .rig { padding: 14px; }
  .rig::before, .rig::after { display: block; }
  .rig-bays { grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 0 12px; }
  .bay { padding: 16px 16px 18px; min-height: 196px; }
  .bay .vb { font-size: clamp(18px, 1.4vw, 22px); }
  .rig-foot { grid-template-columns: 1fr 1fr; margin: 14px 12px 0; }
  .rig-foot > div + div { border-top: 0; border-left: 1px dashed var(--rule-2); }
}
@media (min-width: 1281px) { .rig-bays { grid-template-columns: repeat(5, minmax(0, 1fr)); } }

/* detail B: the rig, traced */
.rig-head { display: grid; grid-template-columns: minmax(0, 1fr); gap: 20px; align-items: start; margin-bottom: 28px; }
.rig-head .lede { margin: 0; }
.rig-fig .rig-plot { padding: 14px 4px 6px; }
.rig-wide { display: none; }
@media (min-width: 761px) { .rig-wide { display: block; } .rig-narrow { display: none; } }
.rig-dwg { width: 100%; height: auto; overflow: visible; }
.rig-dwg path, .rig-dwg rect, .rig-dwg circle, .rig-dwg line { vector-effect: non-scaling-stroke; fill: none; stroke-linejoin: round; stroke-linecap: round; }
.rig-dwg .out { stroke: var(--bone); stroke-width: 1.5; transition: stroke .2s, stroke-width .2s; }
.rig-dwg .fill { fill: var(--ground); }
.rig-dwg .det { stroke: var(--bone-2); stroke-width: 1; transition: stroke .2s; }
.rig-dwg .tan { stroke: var(--faint); stroke-width: .8; }
.rig-dwg .ring { stroke: var(--bone-2); stroke-width: 1; }
.rig-dwg .hid { stroke: var(--dim); stroke-width: 1; stroke-dasharray: var(--dash-lab); }
.rig-dwg .fins { stroke: none; }
.rig-dwg pattern path { stroke: var(--faint); vector-effect: none; }
.rig-dwg .gnd line { stroke: var(--faint); stroke-width: .8; }
.rig-dwg .dim line { stroke: var(--dim); stroke-width: .8; }
.rig-dwg .dim .arw { fill: var(--dim); stroke: none; }
.rig-dwg .dim .dim-bg { fill: var(--ground); stroke: none; }
.rig-dwg .dim-t { font-family: var(--mono); fill: var(--bone-2); }
.rig-dwg .ldr { stroke: var(--bone-2); stroke-width: 1; transition: stroke .2s; }
.rig-dwg .ldr-end { fill: var(--bone-2); stroke: none; transition: fill .2s; }
.rig-dwg .bal { fill: var(--ground); stroke: var(--bone); stroke-width: 1.2; transition: stroke .2s; }
.rig-dwg .bal-t { font-family: var(--sans); font-stretch: 112%; font-weight: 800; fill: var(--bone); transition: fill .2s; }
.rig-dwg .part, .rig-dwg .item { cursor: default; }
.rig-dwg .part.is-on .out, .rig-dwg .part.is-on .det { stroke: var(--signal); }
.rig-dwg .part.is-on .out { stroke-width: 1.9; }
.rig-dwg .item.is-on .ldr, .rig-dwg .item.is-on .bal { stroke: var(--signal); }
.rig-dwg .item.is-on .ldr-end, .rig-dwg .item.is-on .bal-t { fill: var(--signal); }
.bom-wrap { border-top: 1px solid var(--rule); }
table.bom { width: 100%; border-collapse: collapse; }
table.bom thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
table.bom tbody tr { display: grid; grid-template-columns: 40px minmax(0, 1fr) auto; column-gap: 12px; row-gap: 4px; padding: 16px;
  grid-template-areas: "it part qty" "it mem mem" "it role role"; border-bottom: 1px solid var(--rule); cursor: default; outline: none; }
table.bom tbody tr:last-child { border-bottom: 0; }
table.bom td { display: block; padding: 0; border: 0; font-size: var(--fs-ui); color: var(--bone-2); }
table.bom td b { color: var(--bone); font-weight: 650; }
table.bom td.it { grid-area: it; }
table.bom td.num { grid-area: qty; font-size: var(--fs-meta); color: var(--dim); }
table.bom td.num::before { content: "Qty "; }
table.bom td:nth-child(3) { grid-area: part; }
table.bom td.mono { grid-area: mem; font-family: var(--mono); font-size: var(--fs-meta); }
table.bom td:nth-child(5) { grid-area: role; }
table.bom td.none { display: none; }
table.bom .bal-h { display: inline-grid; place-items: center; width: 30px; height: 30px; border: 1px solid var(--bone); border-radius: 50%;
  font-stretch: 112%; font-weight: 800; font-size: 14px; color: var(--bone); transition: border-color .2s, color .2s; }
table.bom tbody tr.is-on td { background: var(--plate); }
table.bom tbody tr.is-on { background: var(--plate); }
table.bom tbody tr.is-on .bal-h { border-color: var(--signal); color: var(--signal); }
table.bom tbody tr:focus-visible { box-shadow: inset 0 0 0 1px var(--signal); }
.rig-verbs { margin-top: 56px; }
@media (min-width: 761px) {
  .rig-fig .rig-plot { padding: clamp(12px, 2.4vw, 36px) clamp(8px, 2vw, 32px) clamp(8px, 1.4vw, 20px); }
  table.bom thead { position: static; width: auto; height: auto; overflow: visible; clip: auto; display: table-header-group; }
  table.bom tbody tr { display: table-row; padding: 0; border-bottom: 0; }
  table.bom td { display: table-cell; padding: 13px 16px; border-bottom: 1px solid var(--rule); vertical-align: top; }
  table.bom tbody tr:last-child td { border-bottom: 0; }
  table.bom td.num { text-align: right; width: 64px; }
  table.bom td.num::before { content: none; }
  table.bom td.it { width: 70px; }
  table.bom td.none { display: table-cell; }
  table.bom th { text-align: left; font-stretch: 116%; font-weight: 600; font-size: var(--fs-label); letter-spacing: 0.13em; text-transform: uppercase;
    color: var(--dim); padding: 14px 16px; border-bottom: 1px solid var(--rule-2); white-space: nowrap; }
  table.bom th.num { text-align: right; }
}
@media (min-width: 1081px) {
  .rig-head { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(24px, 4vw, 72px); align-items: end; margin-bottom: clamp(28px, 4vw, 52px); }
  .rig-verbs { margin-top: clamp(56px, 7vw, 104px); }
}

/* plain figure frame */
.figure { border: 1px solid var(--rule-2); margin: 0; }
.figure > header { display: flex; justify-content: space-between; gap: 6px 16px; align-items: baseline; flex-wrap: wrap; padding: 14px 16px; border-bottom: 1px solid var(--rule); }
.figure > header .figno { font-stretch: 116%; font-weight: 800; font-size: 14px; letter-spacing: 0.15em; text-transform: uppercase; }
.figure .plot { padding: 16px 12px 8px; }
.figure > footer { border-top: 1px solid var(--rule); padding: 12px 16px; display: flex; flex-wrap: wrap; gap: 8px 22px; }
.provenance { font-family: var(--mono); font-size: var(--fs-meta); line-height: 1.6; color: var(--dim); letter-spacing: 0; }
.provenance b { color: var(--bone-2); font-weight: 500; }
@media (min-width: 761px) { .figure > header { padding: 14px 18px; } .figure .plot { padding: 18px 18px 8px; } .figure > footer { padding: 12px 18px; } }

/* svg charts: phone charts are drawn ~360 units wide, desk charts ~780, so a unit is
   close to a pixel and these sizes hold on both */
.chart { width: 100%; height: auto; overflow: visible; font-family: var(--sans); }
.chart .ax { stroke: var(--bone-2); stroke-width: 1; }
.chart .grid { stroke: var(--rule); stroke-width: 1; }
.chart .tick { font-size: 13px; fill: var(--dim); font-stretch: 106%; }
.chart .axt { font-size: 13px; fill: var(--bone-2); font-stretch: 116%; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; }
.chart .pt { stroke: var(--bone); stroke-width: 1.3; fill: var(--ground); }
.chart .pt.moe { fill: url(#hatch-c); }
.chart .pt.ex { stroke: var(--signal); stroke-width: 2; }
.chart .pt.moe.ex { fill: var(--signal); }
.chart .plab { font-size: 13.5px; fill: var(--bone-2); font-stretch: 104%; }
.chart .plab.ex { fill: var(--signal); font-weight: 700; }
.chart .ann { font-size: 14px; fill: var(--bone); font-weight: 600; font-stretch: 106%; }
.chart .ann-n { font-size: 17px; fill: var(--bone); font-weight: 800; font-stretch: 112%; }
.chart .lead { fill: none; stroke: var(--bone-2); stroke-width: 1; }
.chart .dim-line { stroke: var(--signal); stroke-width: 1.2; fill: none; }
.chart .dim-text { fill: var(--signal); font-weight: 800; font-size: 17px; font-stretch: 112%; }
.chart .series { fill: none; stroke: var(--bone); stroke-width: 1.6; }
.chart .series.mem { stroke-dasharray: var(--dash-lab); stroke: var(--bone-2); stroke-width: 1.2; }
.chart .series.ex { stroke: var(--signal); stroke-width: 2; }
.chart .dot { fill: var(--ground); stroke: var(--bone); stroke-width: 1.2; }
.chart .cell { stroke: var(--bone-2); stroke-width: 0.8; }
.chart .cell.b90 { fill: var(--bone); stroke: var(--bone); }
.chart .cell.b75 { fill: url(#hatch-dense); }
.chart .cell.b50 { fill: url(#hatch-sparse); }
.chart .cell.b0 { fill: var(--ground); }
.chart .cell.void { fill: var(--ground); stroke-dasharray: 2 2; stroke: var(--faint); }
.chart .cell:hover { stroke: var(--signal); stroke-width: 1.6; }
.chart .rowlab { font-size: 12.5px; fill: var(--bone-2); font-stretch: 110%; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; }
.chart .rowcount { font-size: 12.5px; fill: var(--dim); }
.chart .tl { stroke: var(--bone); stroke-width: 1.4; }
.chart .tl.rev { stroke: var(--signal); stroke-width: 1.6; }

/* tables: rows stack on phones (cells carry data-label), grid from tablet up */
.table-wrap { border: 1px solid var(--rule-2); overflow-x: auto; }
table.sched { width: 100%; border-collapse: collapse; font-size: var(--fs-ui); }
table.sched caption { text-align: left; padding: 14px 16px; border-bottom: 1px solid var(--rule); }
table.sched th { text-align: left; font-stretch: 116%; font-weight: 600; font-size: var(--fs-label); letter-spacing: 0.13em; text-transform: uppercase;
  color: var(--dim); padding: 13px 14px; border-bottom: 1px solid var(--rule-2); white-space: nowrap; vertical-align: bottom; }
table.sched td { padding: 12px 14px; border-bottom: 1px solid var(--rule); vertical-align: top; color: var(--bone-2); }
table.sched td b { color: var(--bone); }
table.sched tr:last-child td { border-bottom: 0; }
table.sched td.num, table.sched th.num { text-align: right; }
table.sched td.mono { font-family: var(--mono); font-size: var(--fs-meta); white-space: nowrap; }
table.sched tbody tr:hover td { background: var(--plate); }
.table-wrap.scroll table.sched { min-width: 680px; }
table.sched.stacked thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
table.sched.stacked tbody tr { display: flex; flex-direction: column; padding: 14px 16px; border-bottom: 1px solid var(--rule); }
table.sched.stacked tbody tr:last-child { border-bottom: 0; }
table.sched.stacked td { display: grid; grid-template-columns: 104px minmax(0, 1fr); gap: 12px; padding: 4px 0; border: 0; text-align: left; white-space: normal; }
table.sched.stacked td::before { content: attr(data-label); font-stretch: 116%; font-weight: 600; font-size: var(--fs-label); letter-spacing: 0.12em; text-transform: uppercase; color: var(--dim); padding-top: 2px; }
table.sched.stacked td.lead-cell { display: block; order: -1; padding-bottom: 8px; color: var(--bone); font-weight: 650; }
table.sched.stacked td.lead-cell::before { content: none; }
@media (min-width: 761px) {
  table.sched.stacked thead { position: static; width: auto; height: auto; overflow: visible; clip: auto; display: table-header-group; }
  table.sched.stacked tbody tr { display: table-row; padding: 0; border: 0; }
  table.sched.stacked td.mono { white-space: nowrap; }
  table.sched.stacked td { display: table-cell; padding: 12px 14px; border-bottom: 1px solid var(--rule); }
  table.sched.stacked td.lead-cell { display: table-cell; padding-bottom: 12px; font-weight: 400; color: var(--bone-2); }
  table.sched.stacked td::before { content: none; }
  table.sched.stacked td.num { text-align: right; }
  table.sched.stacked tr:last-child td { border-bottom: 0; }
}
.board td.sc { padding: 9px 10px; min-width: 78px; }
.board .bar { display: block; height: 6px; margin-top: 6px; border: 1px solid var(--rule-2); }
.board .bar i { display: block; height: 100%; background: var(--bone-2); }
.board td.best { color: var(--signal); font-weight: 700; }
.board td.best .bar i { background: var(--signal); }
.board td.na { color: var(--faint); }
.board th:first-child, .board td:first-child { position: sticky; left: 0; background: var(--ground); z-index: 1; }
.status { font-stretch: 116%; font-weight: 700; font-size: var(--fs-label); letter-spacing: 0.12em; text-transform: uppercase; white-space: nowrap; }
.status.production { color: var(--signal); }
.status.rejected, .status.deleted { color: var(--faint); text-decoration: line-through; text-decoration-thickness: 1px; }

/* details */
details.drawer { border-top: 1px solid var(--rule); }
details.drawer > summary { cursor: pointer; list-style: none; display: grid; grid-template-columns: 1fr auto; gap: 16px; align-items: baseline; padding: 18px 0; min-height: 48px; }
details.drawer > summary::-webkit-details-marker { display: none; }
details.drawer > summary::after { content: "+"; font-family: var(--mono); color: var(--dim); font-size: 20px; }
details.drawer[open] > summary::after { content: "−"; }
details.drawer > summary:hover { color: var(--signal); }
details.drawer .body { padding: 0 0 22px; color: var(--bone-2); max-width: 78ch; font-size: var(--fs-ui); }
details.drawer .body dl { display: grid; grid-template-columns: minmax(0, 1fr); gap: 4px; margin: 0; }
details.drawer .body dt { font-stretch: 116%; font-weight: 600; font-size: var(--fs-label); letter-spacing: 0.13em; text-transform: uppercase; color: var(--dim); padding-top: 10px; }
details.drawer .body dd { margin: 0; }
@media (min-width: 761px) {
  details.drawer .body dl { grid-template-columns: 140px minmax(0, 1fr); gap: 10px 18px; }
  details.drawer .body dt { padding-top: 4px; }
}

/* findings */
.finding { display: grid; grid-template-columns: minmax(0, 1fr); gap: 8px; padding: 24px 0; border-top: 1px solid var(--rule); }
.finding .when { font-family: var(--mono); font-size: var(--fs-meta); color: var(--dim); display: flex; gap: 14px; align-items: baseline; flex-wrap: wrap; }
.finding h3 { font-stretch: 104%; font-weight: 700; font-size: clamp(19px, 1.4vw, 22px); line-height: 1.3; margin-bottom: 10px; }
.finding p { color: var(--bone-2); margin: 0 0 10px; font-size: var(--fs-ui); }
.finding .ev { font-family: var(--mono); font-size: var(--fs-meta); color: var(--dim); line-height: 1.6; overflow-wrap: anywhere; }
.finding.revised h3 { color: var(--signal); }
@media (min-width: 761px) {
  .finding { grid-template-columns: 130px minmax(0, 1fr); gap: 22px; }
  .finding .when { display: block; padding-top: 4px; }
  .finding .when .status { display: block; margin-top: 6px; }
}

/* the column, as seen from the home page */
.machine { display: grid; grid-template-columns: minmax(0, 1fr); border-top: 1px solid var(--rule-2); border-bottom: 1px solid var(--rule-2); background: #050505; }
.machine-lead { padding: 44px var(--gutter); border-bottom: 1px solid var(--rule); display: flex; flex-direction: column; gap: 28px; }
.machine .masthead { font-family: var(--mono); font-weight: 700; text-transform: uppercase; line-height: 1; letter-spacing: -0.03em; font-size: clamp(40px, 11.6vw, 64px); }
.machine .masthead .cursor { display: inline-block; width: .55em; height: .8em; background: var(--bone); transform: translateY(.08em); margin-left: .06em; animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.machine .lede { font-family: var(--voice); font-style: italic; color: var(--bone); max-width: 30ch; font-size: clamp(22px, 2vw, 30px); line-height: 1.35; }
.rulebox { border: 1px solid var(--bone); padding: 20px; position: relative; max-width: 640px; }
.rulebox::after { content: ""; position: absolute; inset: 4px; border: 1px solid var(--rule-2); pointer-events: none; }
.rulebox .label { color: var(--bone); margin-bottom: 8px; }
.rulebox p { font-family: var(--mono); font-size: 15px; line-height: 1.65; color: var(--bone); margin: 0; }
.rulebox p + p { margin-top: 10px; color: var(--bone-2); }
.latest { display: grid; grid-template-columns: minmax(0, 1fr); gap: 12px; text-decoration: none; padding-top: 26px; border-top: 1px solid var(--rule); }
.latest .ent { font-family: var(--mono); font-weight: 700; font-size: 15px; letter-spacing: .3em; color: var(--dim); }
.latest .txt { display: flex; flex-direction: column; gap: 10px; }
.latest h3 { font-family: var(--mono); font-weight: 700; text-transform: uppercase; font-size: clamp(26px, 3vw, 44px); line-height: 1.05; letter-spacing: -0.02em; }
.latest p { margin: 0; font-family: var(--voice); font-style: italic; font-size: var(--fs-lede); line-height: 1.4; color: var(--bone-2); }
.latest:hover h3 { color: var(--signal); }
.machine-index { padding: 32px var(--gutter) 40px; }
.machine-index ol { list-style: none; padding: 0; margin: 14px 0 24px; }
.machine-index li a { display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 12px; padding: 13px 0; border-bottom: 1px solid var(--rule); text-decoration: none; font-family: var(--voice); font-size: 18px; line-height: 1.35; }
.machine-index li .n { font-family: var(--mono); font-weight: 700; font-size: 14px; color: var(--signal); padding-top: 3px; }
.machine-index li a:hover .n { color: var(--signal); }
.counts { display: flex; gap: 0; border: 1px solid var(--rule-2); }
.counts > div { flex: 1; min-width: 0; padding: 14px 12px; border-right: 1px solid var(--rule); }
.counts .label { display: block; overflow-wrap: anywhere; }
.counts > div:last-child { border-right: 0; }
.counts .n { display: block; font-family: var(--mono); font-weight: 700; font-size: 30px; line-height: 1; }
@media (min-width: 761px) { .machine-lead { padding: clamp(48px, 5vw, 88px) var(--gutter); } .machine-index { padding: clamp(32px, 4vw, 56px) var(--gutter); } }
@media (min-width: 1081px) {
  .machine { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
  .machine-lead { border-bottom: 0; border-right: 1px solid var(--rule); }
  .machine .masthead { font-size: clamp(56px, 6.4vw, 112px); }
}
@media (prefers-reduced-motion: reduce) { .machine .masthead .cursor { animation: none; } }

/* revisions / schedule of parts */
.revs table.sched td .lt { margin-right: 4px; }
.state { display: inline-flex; gap: 10px; align-items: center; font-stretch: 116%; font-weight: 700; font-size: var(--fs-label); letter-spacing: 0.12em; text-transform: uppercase; white-space: nowrap; }

/* correspondence */
.door { display: grid; grid-template-columns: minmax(0, 1fr); border-bottom: 1px solid var(--rule-2); }
.door > div { padding: 44px var(--gutter); }
.door > div + div { border-top: 1px solid var(--rule); display: flex; flex-direction: column; justify-content: flex-end; gap: 18px; }
.door .mail { font-stretch: 104%; font-weight: 900; font-size: clamp(26px, 2.9vw, 46px); line-height: 1; text-decoration: none; letter-spacing: -0.01em; overflow-wrap: anywhere; }
.door .mail:hover { color: var(--signal); }
.door ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 0; }
.door li { padding: 12px 0; border-top: 1px solid var(--rule); display: flex; gap: 12px; align-items: baseline; color: var(--bone-2); font-size: var(--fs-ui); }
.door li::before { content: ""; width: 26px; height: 0; border-top: 1px solid var(--bone); transform: translateY(-4px); flex: none; }
@media (min-width: 1081px) {
  .door { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
  .door > div { padding: clamp(48px, 6vw, 96px) var(--gutter); }
  .door > div + div { border-top: 0; border-left: 1px solid var(--rule); }
}

/* ── title block footer ───────────────────────────────────────────── */
.titleblock { display: grid; grid-template-columns: minmax(0, 1fr); border-top: 1px solid var(--rule-2); }
.titleblock > div { padding: 18px 20px 20px; border-bottom: 1px solid var(--rule); font-size: 15px; line-height: 1.6; color: var(--bone-2); }
.titleblock .label { display: block; margin-bottom: 6px; }
.titleblock b { color: var(--bone); font-weight: 650; }
.titleblock .big { font-stretch: 122%; font-weight: 900; font-size: 22px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--bone); line-height: 1.1; }
.titleblock a { text-decoration-color: var(--rule-2); }
@media (min-width: 761px) {
  .titleblock { grid-template-columns: 1fr 1fr; }
  .titleblock > div { border-right: 1px solid var(--rule); }
  .titleblock > div:nth-child(2n) { border-right: 0; }
  .titleblock .wide { grid-column: span 2; border-right: 0; }
}
@media (min-width: 1081px) {
  .titleblock { grid-template-columns: 2.2fr 1.6fr 1.6fr 1fr; }
  .titleblock > div:nth-child(2n) { border-right: 1px solid var(--rule); }
  .titleblock > div:nth-child(4n) { border-right: 0; }
  .titleblock .wide { grid-column: span 3; border-right: 1px solid var(--rule); }
}

/* ── inner page heads ─────────────────────────────────────────────── */
.pagehead { display: grid; grid-template-columns: minmax(0, 1fr); border-bottom: 1px solid var(--rule-2); }
.pagehead > div { padding: 36px var(--gutter) 32px; }
.pagehead > div + div { border-top: 1px solid var(--rule); display: flex; flex-direction: column; justify-content: flex-end; gap: 16px; }
.pagehead h1 { margin: 20px 0 22px; }
@media (min-width: 761px) { .pagehead > div { padding: clamp(40px, 5vw, 80px) var(--gutter) clamp(32px, 4vw, 56px); } .pagehead h1 { margin: 22px 0 26px; } }
@media (min-width: 1081px) {
  .pagehead { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
  .pagehead > div + div { border-top: 0; border-left: 1px solid var(--rule); }
}

.small-mults { display: grid; grid-template-columns: minmax(0, 1fr); gap: 0; border-top: 1px solid var(--rule); border-left: 1px solid var(--rule); }
.small-mults > div { border-right: 1px solid var(--rule); border-bottom: 1px solid var(--rule); padding: 14px 14px 8px; }
.small-mults .label { color: var(--bone); }
.small-mults .sub { font-family: var(--mono); font-size: var(--fs-meta); color: var(--dim); }
@media (min-width: 761px) { .small-mults { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* privacy / 404 */
.plain { max-width: 70ch; }
.plain h2 { margin: 40px 0 12px; }
.plain p, .plain li { color: var(--bone-2); }

/* every run: one square per run, a row per suite; rows wrap rather than shrink */
.er { display: grid; gap: 16px; }
.er-row { display: grid; grid-template-columns: minmax(0, 1fr); gap: 7px; }
.er-lab { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; font-stretch: 110%; font-weight: 650; font-size: var(--fs-label);
  letter-spacing: .08em; text-transform: uppercase; color: var(--bone-2); line-height: 1.3; }
.er-lab b { font-family: var(--mono); font-weight: 500; color: var(--dim); letter-spacing: 0; font-size: var(--fs-meta); }
.er-cells { display: flex; flex-wrap: wrap; gap: 3px; }
.er-cells i { width: 12px; height: 12px; border: 1px solid var(--bone-2); background: var(--ground); }
.er-cells i.b90 { background: var(--bone); border-color: var(--bone); }
.er-cells i.b75 { background: repeating-linear-gradient(135deg, var(--bone-2) 0 1.6px, transparent 1.6px 3.4px); }
.er-cells i.b50 { background: repeating-linear-gradient(135deg, var(--bone-2) 0 1px, transparent 1px 5px); }
.er-cells i.void { border-style: dotted; border-color: var(--faint); }
.er-cells i:hover { outline: 2px solid var(--signal); outline-offset: 1px; }
@media (min-width: 761px) { .er { gap: 10px; } .er-row { grid-template-columns: 200px minmax(0, 1fr); gap: 18px; align-items: start; } .er-lab { padding-top: 0; } }

/* the board: one card per model on a phone, the full matrix from a tablet up */
.table-wrap.scroll table.sched.stacked { min-width: 0; }
table.board.stacked td.na { display: none; }
table.board.stacked td.sc { align-items: center; }
table.board.stacked td.sc .bar { margin-top: 0; grid-column: 2; }
@media (max-width: 760px) {
  table.board.stacked td.sc { grid-template-columns: 116px 52px minmax(0, 1fr); }
  table.board.stacked td.sc::before { grid-column: 1; }
  table.board.stacked td.sc .bar { grid-column: 3; }
  table.board th:first-child, table.board td:first-child { position: static; }
}
@media (min-width: 761px) {
  .table-wrap.scroll table.sched.stacked { min-width: 860px; }
  table.board.stacked td.na { display: table-cell; }
  table.board.stacked td.sc .bar { margin-top: 6px; }
}
.bay .seat a { text-decoration-color: var(--rule-2); }
.bay .seat a:hover { color: var(--signal); }

/* what it's for: the jobs, each pointing at where it is built */
.jobs { list-style: none; margin: 0; padding: 0; counter-reset: j; display: grid; grid-template-columns: minmax(0, 1fr); border-top: 1px solid var(--rule); }
.jobs li { counter-increment: j; padding: 24px 0 26px; border-bottom: 1px solid var(--rule); display: grid; gap: 10px; }
.jobs li h3::before { content: counter(j, decimal-leading-zero); display: block; font-family: var(--mono); font-weight: 700; font-size: var(--fs-meta); color: var(--signal); margin-bottom: 10px; letter-spacing: .04em; }
.jobs li p { margin: 0; color: var(--bone-2); font-size: var(--fs-ui); max-width: 60ch; }
.jobs li .textlink { justify-self: start; }
@media (min-width: 761px) {
  .jobs { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 32px; }
  .jobs li:last-child { grid-column: 1 / -1; }
}
.rig-why { margin: 14px 0 0; color: var(--bone-2); max-width: 46ch; font-size: var(--fs-ui); }
.door .problems { margin-bottom: 8px; }
.door .problems li { color: var(--bone); font-size: clamp(18px, 1.4vw, 21px); font-weight: 600; font-stretch: 104%; }
.door .problems li::before { border-top-color: var(--signal); }
.door > div + div > .label { margin-top: 8px; }

/* ── signal static: the machine's medium ─────────────────────────────
   Grain for the void it speaks from; a slow rolling band because what comes out of it is a
   transmission. Sits behind the text, never over it. Under reduced motion only the still grain stays. */
.static-field { position: absolute; inset: 0; overflow: hidden; pointer-events: none; z-index: 0; }
.static-field.is-fixed { position: fixed; }
.static-field::before { content: ""; position: absolute; inset: -90px; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.92' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 2.4 0 0 0 -1.1'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); background-size: 220px 220px;
  opacity: .085; animation: static-grain 1.1s steps(8) infinite; will-change: transform; }
.static-field::after { content: ""; position: absolute; inset: 0;
  background: repeating-linear-gradient(to bottom, rgba(232, 230, 223, .013) 0 1px, transparent 1px 3px),
              radial-gradient(ellipse 80% 70% at 50% 42%, transparent 48%, rgba(0, 0, 0, .7) 100%); }
.static-field i { position: absolute; left: 0; right: 0; top: 0; height: 30%;
  background: linear-gradient(to bottom, transparent, rgba(232, 230, 223, .026) 38%, rgba(232, 230, 223, .045) 50%, rgba(232, 230, 223, .026) 62%, transparent);
  animation: static-roll 16s linear infinite; will-change: transform; }
@keyframes static-grain {
  0% { transform: translate(0, 0); } 12% { transform: translate(-31px, 22px); } 25% { transform: translate(18px, -40px); }
  37% { transform: translate(-52px, -11px); } 50% { transform: translate(40px, 31px); } 62% { transform: translate(-14px, 58px); }
  75% { transform: translate(61px, -25px); } 87% { transform: translate(-44px, -57px); } 100% { transform: translate(0, 0); } }
@keyframes static-roll { from { transform: translateY(-100%); } to { transform: translateY(440%); } }
@media (prefers-reduced-motion: reduce) { .static-field::before { animation: none; } .static-field i { display: none; } }

/* the column's teaser on the home page is a window onto that medium */
.machine { position: relative; isolation: isolate; overflow: hidden; }
.machine > :not(.static-field) { position: relative; z-index: 1; }