:root {
  --desk: #030504;
  --paper: #0d110e;
  --paper-high: #141915;
  --paper-low: #090c0a;
  --ink: #c5c9bb;
  --ink-soft: #8c9487;
  --faint: #596258;
  --rule: rgba(197, 201, 187, .14);
  --rule-dark: rgba(197, 201, 187, .36);
  --oxide: #d07855;
  --oxide-soft: rgba(208, 120, 85, .13);
  --petrol: #74a7a0;
  --petrol-soft: rgba(116, 167, 160, .15);
  --pencil: #667268;
  --mono: "Nimbus Mono PS", "Liberation Mono", "Courier New", monospace;
  --book: Georgia, "Times New Roman", serif;
}

* { box-sizing: border-box; }

html {
  background: var(--desk);
  color-scheme: dark;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(255,255,255,.018), transparent 1px) 0 0 / 9px 100%,
    var(--paper);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .015em;
}

button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.noise {
  position: fixed;
  z-index: 50;
  inset: 0;
  pointer-events: none;
  opacity: .15;
  background:
    repeating-linear-gradient(0deg, transparent 0 5px, rgba(220, 229, 215, .025) 5px 6px),
    radial-gradient(circle at 17% 22%, rgba(220,229,215,.12) 0 .5px, transparent .7px) 0 0 / 8px 11px;
  mix-blend-mode: screen;
}

.exchange, .archive-page { padding-left: 42px; }

.document-spine {
  position: fixed;
  z-index: 60;
  inset: 0 auto 0 0;
  width: 42px;
  display: flex;
  align-items: center;
  padding: 11px 0;
  border-right: 1px solid #181a16;
  color: #747d71;
  background: #050706;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-style: normal;
}

.document-spine b {
  margin-bottom: 22px;
  color: #c5c9bb;
  font-size: 9px;
  font-weight: 400;
}

.document-spine span {
  flex: 1;
  font-family: var(--book);
  font-size: 10px;
  letter-spacing: .18em;
}

.document-spine em {
  padding: 6px 4px;
  border: 1px solid #4d564d;
  color: var(--oxide);
  font-size: 8px;
  font-style: normal;
}

.noscript {
  padding: 8px 14px;
  border-bottom: 2px solid var(--oxide);
  background: var(--paper-high);
  color: var(--oxide);
  text-align: center;
}

/* Common plane: one ruled working sheet, not a dashboard shell. */
.machine-line {
  min-height: 54px;
  display: grid;
  grid-template-columns: 225px minmax(280px, 1fr) auto;
  align-items: stretch;
  border-bottom: 1px solid var(--ink);
  background: rgba(20, 25, 21, .88);
}

.master-clock {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  padding: 0 14px;
  border-right: 1px solid var(--rule-dark);
}

.master-clock time {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -.04em;
}

.master-clock span {
  color: var(--oxide);
  font-size: 8px;
}

.line-condition {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin: 0;
  padding: 0 17px;
  border-right: 1px solid var(--rule-dark);
}

.line-condition b {
  font-family: var(--book);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: .08em;
}

.line-condition span {
  color: var(--ink-soft);
  font-size: 8px;
}

.line-condition strong {
  min-width: 72px;
  display: inline-block;
  margin-left: 7px;
  color: var(--oxide);
  font-weight: 700;
  text-align: right;
}

.machine-line nav {
  display: flex;
  align-items: stretch;
}

.machine-line nav a {
  min-width: 91px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 11px;
  border-right: 1px solid var(--rule);
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 8px;
}

.machine-line nav a:last-child { border-right: 0; }
.machine-line nav a b { color: var(--ink); font-size: 10px; }
.machine-line nav a:hover, .machine-line nav a:focus-visible {
  outline: 0;
  color: var(--paper-high);
  background: var(--ink);
}

.condition-bar {
  min-height: 67px;
  display: grid;
  grid-template-columns: 145px repeat(4, minmax(105px, 1fr)) 126px;
  border-bottom: 3px double var(--ink);
  background:
    linear-gradient(0deg, transparent 48%, rgba(197,201,187,.035) 49% 51%, transparent 52%),
    var(--paper-high);
}

.condition-bar > div {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8px 13px;
  border-right: 1px solid var(--rule-dark);
}

.condition-bar > div:last-child { border-right: 0; }
.condition-bar span {
  margin-bottom: 6px;
  color: var(--faint);
  font-size: 7px;
  text-transform: uppercase;
}

.condition-bar strong {
  font-size: 12px;
  font-weight: 700;
}

.condition-bar .condition-frame {
  display: grid;
  grid-template-columns: auto 1fr;
  align-content: center;
  column-gap: 10px;
}

.condition-frame span {
  margin: 2px 0 0;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}

.condition-frame strong {
  color: var(--oxide);
  font-family: var(--book);
  font-size: 26px;
  font-weight: 400;
  letter-spacing: -.04em;
}

.condition-rule strong { color: var(--petrol); }
.condition-bar > div.received strong { animation: impression .65s steps(2, end); }
@keyframes impression { 50% { opacity: .18; } }

.exchange-grid {
  display: grid;
  grid-template-columns: minmax(175px, .56fr) minmax(590px, 2.3fr) minmax(275px, .82fr);
  align-items: stretch;
  min-height: calc(100vh - 186px);
}

.panel {
  min-width: 0;
  background: transparent;
}

.witness-bank, .receiver { border-right: 1px solid var(--ink); }

.panel-head {
  min-height: 42px;
  display: grid;
  grid-template-columns: 28px 1fr auto;
  align-items: center;
  border-bottom: 1px solid var(--ink);
}

.register-letter {
  height: 100%;
  display: grid;
  place-items: center;
  color: var(--paper-high);
  background: var(--ink);
  font-family: var(--book);
  font-size: 17px;
  font-weight: 400;
}

.panel-head h2 {
  margin: 0;
  padding: 0 10px;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .035em;
}

.panel-head h2 span {
  color: var(--faint);
  font-size: 7px;
  font-weight: 400;
}

.panel-head h2 span b { color: var(--oxide); }
.panel-head > small {
  padding-right: 10px;
  color: var(--faint);
  font-size: 7px;
}

.microcopy {
  min-height: 41px;
  margin: 0;
  padding: 10px 11px 8px 38px;
  border-bottom: 1px solid var(--rule-dark);
  color: var(--ink-soft);
  font-family: var(--book);
  font-size: 10px;
  font-style: italic;
  line-height: 1.25;
}

.witness-list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: witness;
}

.witness-list li { border-bottom: 1px solid var(--rule-dark); }

.witness-list button {
  position: relative;
  width: 100%;
  min-height: 56px;
  display: grid;
  grid-template-columns: 33px 1fr auto;
  gap: 7px;
  align-items: center;
  padding: 5px 8px 5px 5px;
  border: 0;
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  text-align: left;
}

.witness-list button:hover, .witness-list button:focus-visible {
  outline: 1px solid var(--ink);
  outline-offset: -3px;
}

.witness-list button.active {
  background:
    repeating-linear-gradient(-45deg, transparent 0 6px, rgba(116,167,160,.08) 6px 7px),
    var(--paper-high);
}

.witness-list button.active::after {
  content: "SOUNDED";
  position: absolute;
  right: 5px;
  bottom: 3px;
  color: var(--oxide);
  font-size: 5px;
  letter-spacing: .12em;
}

.witness-list i {
  width: 27px;
  height: 34px;
  display: grid;
  place-items: center;
  border: solid var(--ink);
  border-width: 1px 0;
  color: var(--ink);
  font-family: var(--book);
  font-size: 13px;
  font-style: normal;
}

.witness-list button.active i { color: var(--paper-high); background: var(--petrol); }
.witness-list b { display: block; margin-bottom: 4px; font-size: 9px; }
.witness-list small { color: var(--faint); font-size: 7px; }
.witness-list em {
  align-self: start;
  padding-top: 8px;
  color: var(--ink-soft);
  font-size: 6px;
  font-style: normal;
  text-transform: uppercase;
}
.witness-list em[data-state="held"], .witness-list em[data-state="folded"] { color: var(--petrol); }
.witness-list em[data-state="vacant"], .witness-list em[data-state="late"] { color: var(--oxide); }

.witness-foot {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 11px 9px;
  border-bottom: 1px solid var(--rule-dark);
  color: var(--faint);
  font-size: 6px;
}

.witness-foot a { color: var(--petrol); text-decoration: underline; text-underline-offset: 2px; }

.receiver-head { grid-template-columns: 28px 1fr auto; }
.receiver-legend {
  display: flex;
  gap: 9px;
  padding-right: 10px;
  color: var(--ink-soft);
  font-size: 7px;
}
.receiver-legend span { display: flex; align-items: center; gap: 3px; }
.key { width: 7px; height: 7px; display: inline-block; border: 1px solid var(--ink); }
.key.return-key { height: 2px; border: 0; background: var(--ink); }
.key.joint { background: var(--petrol); border-color: var(--petrol); transform: rotate(45deg); }
.key.vacancy { border-color: var(--oxide); border-radius: 50%; }

.receipt-field {
  height: 370px;
  overflow-x: auto;
  overflow-y: hidden;
  border-bottom: 1px solid var(--ink);
  background:
    repeating-linear-gradient(0deg, transparent 0 15px, rgba(197,201,187,.03) 15px 16px),
    rgba(20, 25, 21, .58);
  scrollbar-color: var(--ink-soft) var(--paper-low);
  scrollbar-width: thin;
}

.receipt-scroll { min-width: 640px; height: calc(100% - 29px); overflow: hidden; }
.receipt-time-row {
  height: 37px;
  display: grid;
  grid-template-columns: 53px 1fr;
  border-bottom: 1px solid var(--rule-dark);
}
.receipt-time-row > span {
  display: flex;
  align-items: center;
  padding-left: 7px;
  border-right: 1px solid var(--ink);
  color: var(--faint);
  font-size: 6px;
  line-height: 1.3;
}
.receipt-times { display: grid; grid-template-columns: repeat(47, 1fr); }
.receipt-times i {
  position: relative;
  min-width: 0;
  border-right: 1px dotted rgba(197,201,187,.14);
  font-style: normal;
}
.receipt-times i.major { border-right: 1px solid var(--rule-dark); }
.receipt-times i.current { background: var(--oxide-soft); }
.receipt-times i span {
  position: absolute;
  z-index: 2;
  left: 2px;
  bottom: 4px;
  color: var(--faint);
  font-size: 5px;
  white-space: nowrap;
  transform: rotate(-58deg);
  transform-origin: left bottom;
}

.receipt-rows {
  height: calc(100% - 37px);
  display: grid;
  grid-template-rows: repeat(6, 1fr);
}
.receipt-row {
  min-height: 0;
  display: grid;
  grid-template-columns: 53px 1fr;
  border-bottom: 1px solid var(--rule);
}
.receipt-row:last-child { border-bottom: 0; }
.receipt-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 6px;
  border-right: 1px solid var(--ink);
  color: var(--ink-soft);
  font-size: 7px;
}
.receipt-label b { font-family: var(--book); font-size: 10px; font-weight: 400; }
.receipt-label small { color: var(--faint); font-size: 5px; }
.receipt-row.selected .receipt-label {
  color: var(--paper-high);
  background: var(--petrol);
}
.receipt-cells { display: grid; grid-template-columns: repeat(47, 1fr); }
.receipt-cell {
  position: relative;
  min-width: 0;
  height: 100%;
  padding: 0;
  border: 0;
  border-right: 1px dotted rgba(197,201,187,.13);
  outline: 0;
  color: var(--ink);
  background: transparent;
  cursor: crosshair;
}
.receipt-cell:nth-child(8n) { border-right-style: solid; border-right-color: var(--rule-dark); }
.receipt-cell::before {
  content: "";
  position: absolute;
  left: calc(50% - .5px);
  bottom: 4px;
  width: 1px;
  height: calc(var(--level) * 22px);
  max-height: 72%;
  background: var(--pencil);
  opacity: .7;
}
.receipt-row.selected .receipt-cell::before { width: 2px; background: var(--petrol); }
.receipt-cell::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 45%;
  transform: translate(-50%, -50%);
}
.receipt-cell.edge::after { width: 6px; height: 6px; background: var(--ink); }
.receipt-cell.return::after { width: 8px; height: 2px; background: var(--ink); }
.receipt-cell.pale::after { width: 5px; height: 5px; border: 1px solid var(--ink-soft); border-radius: 50%; }
.receipt-cell.joint::after { width: 7px; height: 7px; background: var(--petrol); transform: translate(-50%, -50%) rotate(45deg); }
.receipt-cell.vacancy::after { width: 7px; height: 7px; border: 1px solid var(--oxide); border-radius: 50%; background: var(--paper-high); }
.receipt-cell.selected-frame {
  background: var(--oxide-soft);
  box-shadow: inset 1px 0 var(--oxide), inset -1px 0 var(--oxide);
}
.receipt-cell.current-frame { border-right: 2px solid var(--oxide); }
.receipt-cell:hover, .receipt-cell:focus-visible {
  z-index: 3;
  outline: 1px solid var(--ink);
  outline-offset: -2px;
  background: rgba(255,255,255,.055);
}
.receipt-cell.measuring { animation: punched .46s steps(2, end) infinite; }
@keyframes punched { 50% { background: rgba(116,167,160,.2); } }
.receipt-cell.locally-seated, .receipt-cell.locally-provisional { border-bottom: 3px solid var(--petrol); }
.receipt-cell.locally-refused { border-bottom: 3px solid var(--oxide); }

.receipt-field footer {
  height: 29px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 8px;
  border-top: 1px solid var(--rule-dark);
  color: var(--faint);
  background: var(--paper-low);
  font-size: 6px;
}
.receipt-field footer b { color: var(--ink-soft); font-weight: 400; }
.receipt-field footer em { color: var(--oxide); font-style: normal; font-weight: 700; }

.frame-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr) auto;
  border-bottom: 3px double var(--ink);
}
.frame-strip > div {
  min-height: 49px;
  padding: 9px 10px;
  border-right: 1px solid var(--rule-dark);
}
.frame-strip span { display: block; margin-bottom: 6px; color: var(--faint); font-size: 6px; }
.frame-strip b { font-size: 10px; }
.frame-strip a {
  display: flex;
  align-items: center;
  padding: 0 13px;
  color: var(--petrol);
  background: rgba(116,167,160,.07);
  font-size: 7px;
  font-weight: 700;
  text-decoration: none;
}
.frame-strip a:hover, .frame-strip a:focus-visible { outline: 0; color: var(--paper-high); background: var(--petrol); }

.event-register header {
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 10px;
  border-bottom: 1px solid var(--ink);
}
.event-register h3 { margin: 0; font-size: 8px; }
.event-register header span { color: var(--faint); font-size: 6px; }
.event-register ol { margin: 0; padding: 0; list-style: none; }
.event-register li {
  min-height: 29px;
  display: grid;
  grid-template-columns: 83px 40px 1fr auto;
  align-items: center;
  padding: 0 9px;
  border-bottom: 1px solid var(--rule);
  color: var(--ink-soft);
  font-size: 7px;
}
.event-register li:first-child {
  border-left: 4px solid var(--oxide);
  color: var(--ink);
  background: rgba(255,255,255,.035);
}
.event-register li time { color: var(--faint); }
.event-register li b { color: var(--petrol); }
.event-register li em { color: var(--faint); font-style: normal; }

.controls { min-width: 0; }
.control-block { padding: 13px 12px; border-bottom: 1px solid var(--ink); }
.control-block label, .control-label {
  display: flex;
  justify-content: space-between;
  color: var(--ink-soft);
  font-size: 7px;
}
.control-block output { color: var(--oxide); font-size: 10px; font-weight: 700; }
.control-block p {
  margin: 8px 0 0;
  color: var(--faint);
  font-family: var(--book);
  font-size: 9px;
  font-style: italic;
  line-height: 1.3;
}

input[type="range"] {
  width: 100%;
  height: 18px;
  margin: 10px 0 0;
  appearance: none;
  background: transparent;
}
input[type="range"]::-webkit-slider-runnable-track { height: 2px; background: var(--ink); }
input[type="range"]::-moz-range-track { height: 2px; background: var(--ink); }
input[type="range"]::-webkit-slider-thumb {
  width: 8px;
  height: 20px;
  margin-top: -9px;
  appearance: none;
  border: 1px solid var(--ink);
  border-radius: 0;
  background: var(--oxide);
}
input[type="range"]::-moz-range-thumb {
  width: 8px;
  height: 20px;
  border: 1px solid var(--ink);
  border-radius: 0;
  background: var(--oxide);
}
.scale { display: flex; justify-content: space-between; padding: 0 3px; }
.scale i { width: 1px; height: 4px; background: var(--ink-soft); }
.scale i:nth-child(5) { height: 8px; background: var(--oxide); }

.aperture {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  margin-top: 9px;
  border: solid var(--ink);
  border-width: 1px 0;
}
.aperture button {
  min-width: 0;
  height: 28px;
  padding: 0;
  border: 0;
  border-right: 1px solid var(--rule-dark);
  color: var(--ink-soft);
  background: transparent;
  cursor: pointer;
  font-family: var(--book);
  font-size: 10px;
}
.aperture button:last-child { border-right: 0; }
.aperture button:hover, .aperture button:focus-visible { outline: 1px solid var(--ink); outline-offset: -3px; }
.aperture button.active { color: var(--paper-high); background: var(--ink); }

/* The old decorative dial is now a literal 47-position punch strip. */
.phase-wheel {
  min-height: 57px;
  display: grid;
  grid-template-columns: 1fr 62px;
  margin: 0;
  border-bottom: 1px solid var(--ink);
}
.phase-wheel > div {
  display: grid;
  grid-template-columns: repeat(47, 1fr);
  align-items: center;
  padding: 0 8px;
  border-right: 1px solid var(--rule-dark);
}
.phase-wheel i {
  position: static;
  width: auto;
  height: 8px;
  border-left: 1px solid var(--faint);
  background: transparent;
  transform: none !important;
}
.phase-wheel i.major { height: 15px; border-color: var(--ink); }
.phase-wheel i.current {
  height: 23px;
  border-left: 3px solid var(--oxide);
  background: var(--oxide-soft);
}
.phase-wheel > span {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 2px;
  text-align: center;
}
.phase-wheel small { color: var(--faint); font-size: 5px; }
.phase-wheel b { color: var(--oxide); font-family: var(--book); font-size: 18px; font-weight: 400; }

.selection-readout {
  margin: 0;
  border-bottom: 1px solid var(--ink);
  background: rgba(255,255,255,.025);
}
.selection-readout header {
  min-height: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 10px;
  border-bottom: 1px solid var(--rule-dark);
}
.selection-readout header span { color: var(--faint); font-size: 6px; }
.selection-readout header b { color: var(--petrol); font-size: 8px; }
.selection-readout dl { display: grid; grid-template-columns: 1fr 1fr; margin: 0; }
.selection-readout dl > div {
  min-height: 39px;
  padding: 7px 9px;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.selection-readout dl > div:nth-child(even) { border-right: 0; }
.selection-readout dl > div:nth-last-child(-n+2) { border-bottom: 0; }
.selection-readout dt { margin-bottom: 5px; color: var(--faint); font-size: 6px; }
.selection-readout dd { margin: 0; color: var(--ink); font-size: 8px; }
.selection-readout dd.open { color: var(--petrol); }
.selection-readout dd.closed { color: var(--oxide); }

.align-button {
  width: calc(100% - 20px);
  min-height: 48px;
  margin: 12px 10px 0;
  padding: 8px 11px;
  border: 2px solid var(--ink);
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  text-align: left;
}
.align-button span, .align-button small { display: block; }
.align-button span { margin-bottom: 5px; font-family: var(--book); font-size: 12px; }
.align-button small { color: var(--ink-soft); font-size: 6px; }
.align-button:hover, .align-button:focus-visible { outline: 0; color: var(--paper-high); background: var(--ink); }
.align-button:hover small, .align-button:focus-visible small { color: var(--paper-low); }
.align-button:disabled { opacity: .38; cursor: wait; }

.alignment-result {
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 0 10px 12px;
  padding: 7px 10px;
  border: solid var(--ink);
  border-width: 0 1px 1px;
  color: var(--ink-soft);
}
.alignment-result span { font-size: 6px; line-height: 1.35; }
.alignment-result b { color: var(--faint); font-size: 9px; }
.alignment-result.seated { border-color: var(--petrol); color: var(--petrol); }
.alignment-result.refused { border-color: var(--oxide); color: var(--oxide); }
.seek-button {
  border: 1px solid var(--oxide);
  color: var(--oxide);
  background: transparent;
  cursor: pointer;
  font-size: 7px;
}

.monitor-button {
  width: 100%;
  min-height: 49px;
  display: grid;
  grid-template-columns: 13px 1fr auto;
  gap: 8px;
  align-items: center;
  padding: 7px 11px;
  border: solid var(--ink);
  border-width: 1px 0;
  color: var(--ink);
  background: var(--paper-high);
  cursor: pointer;
  text-align: left;
}
.monitor-button > i { width: 9px; height: 13px; border: 1px solid var(--ink); background: var(--paper); }
.monitor-button[aria-pressed="true"] > i { background: var(--oxide); }
.monitor-button b, .monitor-button small { display: block; }
.monitor-button b { margin-bottom: 4px; font-family: var(--book); font-size: 11px; font-weight: 400; }
.monitor-button small { color: var(--faint); font-size: 6px; }
.monitor-button em { color: var(--oxide); font-size: 7px; font-style: normal; font-weight: 700; }

.monitor-readout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid var(--ink);
  transition: opacity .15s;
}
.monitor-readout.muted { opacity: .5; }
.monitor-readout > .monitor-field {
  min-height: 38px;
  padding: 7px 10px;
  border-right: 1px solid var(--rule-dark);
}
.monitor-readout > .monitor-field:nth-child(2) { border-right: 0; }
.monitor-readout span, .monitor-readout b { display: block; }
.monitor-readout span { margin-bottom: 5px; color: var(--faint); font-size: 5px; }
.monitor-readout b { font-size: 8px; }
.monitor-trace-head {
  grid-column: 1 / -1;
  min-height: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 10px 3px;
  border-top: 1px solid var(--rule-dark);
}
.monitor-trace-head span { margin: 0; }
.monitor-trace-head b { color: var(--oxide); }
.monitor-meter {
  grid-column: 1 / -1;
  height: 44px;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 3px;
  align-items: end;
  padding: 3px 10px 8px;
  background:
    linear-gradient(0deg, transparent 48%, var(--rule) 49% 51%, transparent 52%);
}
.monitor-meter i {
  min-height: 2px;
  border-top: 1px solid var(--ink);
  background: var(--pencil);
  opacity: .62;
  transition: height .24s;
}
.monitor-meter i.pale { background: #899083; }
.monitor-meter i.return { background: #a1a796; }
.monitor-meter i.edge { background: var(--ink); }
.monitor-meter i.joint { background: var(--petrol); }
.monitor-meter i.vacancy { background: var(--oxide); }
.monitor-meter i.source { opacity: 1; box-shadow: 0 3px 0 var(--oxide); }
.monitor-meter i.outside { height: 2px !important; border: 0; background: var(--rule-dark); opacity: .25; }
.control-note {
  margin: 0;
  padding: 8px 10px 12px;
  color: var(--faint);
  font-size: 6px;
  line-height: 1.4;
}

.lower-ledger {
  min-height: 54px;
  display: grid;
  grid-template-columns: 235px 1fr 175px;
  align-items: stretch;
  border-top: 3px double var(--ink);
  background: var(--paper-high);
}
.ledger-title, .revision { padding: 10px 11px; }
.ledger-title {
  display: flex;
  justify-content: space-between;
  border-right: 1px solid var(--rule-dark);
}
.ledger-title span, .revision { color: var(--faint); font-size: 6px; }
.ledger-title span small { display: block; margin-top: 5px; color: var(--ink-soft); font-size: 5px; }
.ledger-title b { align-self: center; color: var(--oxide); font-size: 7px; }
.ledger-title b.posted { animation: ledger-posted .9s steps(2, end); }
@keyframes ledger-posted { 50% { color: var(--paper-high); background: var(--oxide); } }
.ledger-recent {
  display: flex;
  align-items: center;
  gap: 21px;
  padding: 7px 12px;
  overflow: hidden;
  color: var(--ink-soft);
  font-size: 7px;
  white-space: nowrap;
}
.ledger-recent b { color: var(--petrol); }
.revision { border-left: 1px solid var(--rule-dark); text-align: right; line-height: 1.5; }
.revision span { color: var(--ink); }

/* Retained register */
.archive-mast {
  min-height: 57px;
  display: grid;
  grid-template-columns: 150px 1fr auto;
  align-items: stretch;
  border-bottom: 3px double var(--ink);
  background: var(--paper-high);
}
.archive-mast > * {
  min-height: 57px;
  display: flex;
  justify-content: center;
  flex-direction: column;
  margin: 0;
  padding: 8px 14px;
  border-right: 1px solid var(--rule-dark);
}
.archive-mast > a { color: var(--petrol); text-decoration: none; font-size: 8px; }
.archive-mast div { display: grid; grid-template-columns: 60px 1fr; align-items: center; }
.archive-mast span { color: var(--oxide); font-size: 8px; }
.archive-mast h1 { margin: 0; font-family: var(--book); font-size: 18px; font-weight: 400; }
.archive-mast p { border-right: 0; color: var(--ink-soft); font-size: 7px; }

.archive-shell {
  min-height: calc(100vh - 102px);
  display: grid;
  grid-template-columns: minmax(220px, .65fr) minmax(490px, 1.7fr) minmax(250px, .72fr);
  grid-template-rows: auto 1fr;
}
.cycle-selector { grid-row: 1 / 3; border-right: 1px solid var(--ink); }
.cycle-selector > div { padding: 24px 18px; border-bottom: 1px solid var(--ink); }
.cycle-selector span { display: block; margin-bottom: 7px; color: var(--faint); font-size: 7px; }
.cycle-selector strong { display: block; color: var(--oxide); font-family: var(--book); font-size: 34px; font-weight: 400; }
.cycle-selector small { display: block; margin-top: 6px; color: var(--ink-soft); font-size: 7px; }
.cycle-selector form { padding: 17px 18px; border-bottom: 1px solid var(--ink); }
.cycle-selector label { display: block; margin-bottom: 7px; color: var(--faint); font-size: 7px; }
.cycle-selector input {
  width: 100%;
  height: 36px;
  padding: 0 8px;
  border: solid var(--ink);
  border-width: 1px 0;
  border-radius: 0;
  outline: 0;
  color: var(--ink);
  background: rgba(255,255,255,.035);
}
.cycle-selector input:focus { background: var(--paper-high); }
.cycle-selector form button {
  width: 100%;
  height: 31px;
  margin-top: 7px;
  border: 1px solid var(--ink);
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  font-size: 7px;
}
.cycle-selector nav { display: grid; grid-template-columns: repeat(3, 1fr); }
.cycle-selector nav button {
  height: 39px;
  padding: 0;
  border: 0;
  border-right: 1px solid var(--rule-dark);
  border-bottom: 1px solid var(--ink);
  color: var(--ink-soft);
  background: transparent;
  cursor: pointer;
  font-size: 6px;
}
.cycle-selector nav button:disabled { opacity: .3; cursor: not-allowed; }
.cycle-selector button:not(:disabled):hover { color: var(--paper-high); background: var(--ink); }

.archive-field { border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.archive-field > header, .cycle-table > header {
  min-height: 50px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 13px;
  border-bottom: 1px solid var(--ink);
}
.archive-field header > div:first-child { display: flex; align-items: baseline; gap: 5px; }
.archive-field header span, .cycle-table header span, .frame-inspector header span { color: var(--faint); font-size: 6px; }
.archive-field h2, .cycle-table h2, .frame-inspector h2 {
  margin: 0;
  font-family: var(--book);
  font-size: 13px;
  font-weight: 400;
}
.archive-key { display: flex; align-items: center; gap: 4px; color: var(--faint); font-size: 6px; }
.archive-key i { width: 7px; height: 7px; margin-left: 7px; border: 1px solid var(--ink-soft); }
.archive-key .retained { background: var(--pencil); }
.archive-key .crowned { background: var(--petrol); }
.archive-key .vacant { border-color: var(--oxide); }
.archive-map {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 6px;
  padding: 22px 17px 16px;
  background: repeating-linear-gradient(0deg, transparent 0 17px, rgba(197,201,187,.03) 17px 18px);
}
.archive-map button {
  position: relative;
  aspect-ratio: 1;
  min-width: 0;
  padding: 0;
  border: solid var(--ink);
  border-width: 1px 0;
  color: var(--ink-soft);
  background: transparent;
  cursor: pointer;
  font-size: 7px;
}
.archive-map button::after {
  content: "";
  position: absolute;
  left: 3px;
  right: 3px;
  bottom: 3px;
  height: calc(var(--density) * 45%);
  background: var(--pencil);
}
.archive-map button.crowned { color: var(--petrol); border-color: var(--petrol); }
.archive-map button.crowned::after { background: var(--petrol); }
.archive-map button.vacant { color: var(--oxide); border-color: var(--oxide); }
.archive-map button.vacant::after { background: var(--oxide-soft); }
.archive-map button.unretained {
  color: var(--faint);
  border-color: var(--rule);
  background: repeating-linear-gradient(135deg, transparent 0 4px, rgba(197,201,187,.045) 4px 5px);
  cursor: not-allowed;
}
.archive-map button.unretained::after { display: none; }
.archive-map button.selected { outline: 2px solid var(--oxide); outline-offset: 2px; }
.archive-ruler { display: flex; justify-content: space-between; padding: 0 17px 15px; color: var(--faint); font-size: 6px; }

.frame-inspector { grid-row: 1 / 3; padding-bottom: 17px; }
.frame-inspector header { min-height: 50px; padding: 8px 13px; border-bottom: 1px solid var(--ink); }
.frame-inspector dl { margin: 0; }
.frame-inspector dl > div {
  min-height: 43px;
  display: grid;
  grid-template-columns: 95px 1fr;
  align-items: center;
  padding: 7px 13px;
  border-bottom: 1px solid var(--rule-dark);
}
.frame-inspector dt { color: var(--faint); font-size: 6px; }
.frame-inspector dd { margin: 0; color: var(--ink); font-size: 8px; }
.frame-inspector > p {
  min-height: 55px;
  margin: 0 13px;
  padding: 13px 0;
  color: var(--ink-soft);
  font-family: var(--book);
  font-size: 9px;
  font-style: italic;
  line-height: 1.4;
}
.raw-button {
  height: 37px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 13px;
  border: 1px solid var(--ink);
  color: var(--ink);
  text-decoration: none;
  font-size: 7px;
}
.raw-button:not([aria-disabled="true"]):hover { color: var(--paper-high); background: var(--ink); }
.raw-button[aria-disabled="true"] { opacity: .35; cursor: not-allowed; }
.cycle-table { border-right: 1px solid var(--ink); }
.cycle-table table, .dossier table { width: 100%; border-collapse: collapse; }
.cycle-table th, .cycle-table td {
  height: 34px;
  padding: 0 12px;
  border-bottom: 1px solid var(--rule-dark);
  text-align: left;
  font-size: 7px;
  font-weight: 400;
}
.cycle-table th { color: var(--faint); }
.cycle-table td { color: var(--ink-soft); }
.cycle-table td:first-child { color: var(--petrol); }
.archive-footer {
  min-height: 45px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  border-top: 3px double var(--ink);
  background: var(--paper-high);
  color: var(--faint);
  font-size: 7px;
}
.archive-footer a { color: var(--petrol); }

/* Schedule 12 is a separate duplicated field sheet. */
.card-page {
  padding: 28px 18px;
  color: var(--ink);
  background:
    repeating-linear-gradient(90deg, #151a16 0 1px, transparent 1px 19px),
    var(--desk);
}
.field-card {
  max-width: 980px;
  min-height: 680px;
  margin: 0 auto;
  background:
    repeating-linear-gradient(0deg, transparent 0 23px, rgba(197,201,187,.03) 23px 24px),
    var(--paper-high);
  box-shadow: 8px 10px 0 rgba(0,0,0,.2);
}
.field-card > header {
  min-height: 100px;
  display: grid;
  grid-template-columns: 95px 1fr 105px;
  align-items: stretch;
  border-bottom: 3px double var(--ink);
}
.card-number {
  display: grid;
  place-items: center;
  color: var(--paper-high);
  background: var(--ink);
  font-family: var(--book);
  font-size: 50px;
}
.field-card header > div:nth-child(2) { padding: 16px 19px; }
.field-card header p { margin: 0 0 10px; color: var(--oxide); font-size: 7px; }
.field-card h1 { margin: 0 0 4px; font-family: var(--book); font-size: 28px; font-weight: 400; }
.field-card header span { font-size: 8px; }
.field-card header aside {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  flex-direction: column;
  padding: 13px;
  border-left: 1px solid var(--ink);
  font-size: 8px;
  line-height: 1.6;
  text-align: right;
}
.field-card header aside b { padding: 1px 4px; color: var(--paper-high); background: var(--oxide); }
.card-intro { display: grid; grid-template-columns: .8fr 1.2fr; border-bottom: 1px solid var(--ink); }
.card-intro > * { margin: 0; padding: 14px 18px; font-size: 8px; line-height: 1.5; }
.card-intro strong { border-right: 1px solid var(--ink); }
.card-columns { display: grid; grid-template-columns: 1fr 1fr; }
.card-columns article {
  min-height: 245px;
  padding: 16px 19px;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}
.card-columns article:nth-child(even) { border-right: 0; }
.card-columns h2 {
  margin: 0 0 14px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--ink);
  font-family: var(--book);
  font-size: 13px;
  font-weight: 400;
}
.card-columns ol, .card-columns ul { margin: 12px 0 0; padding-left: 17px; font-size: 8px; line-height: 1.65; }
.edge-diagram { position: relative; height: 52px; margin: 10px 0 17px; border: solid var(--rule-dark); border-width: 1px 0; }
.edge-diagram::before { content: ""; position: absolute; top: 25px; left: 0; right: 0; border-top: 1px solid var(--ink); }
.edge-diagram i { position: absolute; top: 16px; width: 7px; height: 18px; border: 1px solid var(--ink); background: var(--paper-high); }
.edge-diagram i:nth-child(1) { left: 8%; }
.edge-diagram i:nth-child(2) { left: 31%; }
.edge-diagram i:nth-child(3) { left: 61%; background: var(--oxide); }
.edge-diagram i:nth-child(4) { left: 89%; }
.edge-diagram span { position: absolute; top: 36px; font-size: 6px; }
.edge-diagram span:nth-of-type(1) { left: 3%; }
.edge-diagram span:nth-of-type(2) { left: 55%; }
.edge-diagram span:nth-of-type(3) { right: 0; }
.card-columns table { width: 100%; border-collapse: collapse; font-size: 7px; }
.card-columns th, .card-columns td { padding: 6px; border: 1px solid var(--ink-soft); text-align: left; }
.card-columns th { color: var(--paper-high); background: var(--ink); }
.card-warning { padding: 8px; border-left: 3px solid var(--oxide); font-size: 7px; }
.joint-list { padding: 0 !important; list-style: none; }
.joint-list li { display: grid; grid-template-columns: 28px 1fr; margin-bottom: 9px; }
.joint-list i { font-size: 17px; font-style: normal; }
.joint-list b { display: block; font-size: 7px; }
.card-rule {
  min-height: 65px;
  display: grid;
  grid-template-columns: 90px 1fr 205px;
  align-items: center;
  border-bottom: 3px double var(--ink);
}
.card-rule > * {
  height: 100%;
  display: flex;
  align-items: center;
  padding: 13px 17px;
  border-right: 1px solid var(--ink);
}
.card-rule span { color: var(--paper-high); background: var(--oxide); font-weight: bold; }
.card-rule strong { font-family: var(--book); font-size: 12px; }
.card-rule em { border: 0; font-size: 8px; }
.field-card footer {
  min-height: 48px;
  display: grid;
  grid-template-columns: 1fr 1.3fr 55px;
  align-items: center;
  font-size: 7px;
}
.field-card footer > * {
  height: 100%;
  display: flex;
  align-items: center;
  padding: 10px 16px;
  border-right: 1px solid var(--ink);
}
.field-card footer b { border: 0; justify-content: center; font-size: 12px; }

/* Witness leaves and protocol faults use the same filing stock. */
.dossier { padding: 28px 20px; background: var(--desk); }
.sheet {
  position: relative;
  max-width: 830px;
  margin: 0 auto;
  color: var(--ink);
  background:
    repeating-linear-gradient(0deg, transparent 0 23px, rgba(197,201,187,.03) 23px 24px),
    var(--paper);
  box-shadow: 8px 10px 0 rgba(0,0,0,.2);
}
.sheet::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 75px;
  bottom: 25px;
  width: 8px;
  background: radial-gradient(circle, var(--desk) 0 2px, transparent 2.5px) 0 0 / 8px 32px;
}
.sheet .return { display: block; padding: 12px 28px; border-bottom: 1px solid var(--ink); color: var(--petrol); font-size: 7px; }
.sheet .kicker { margin: 20px 30px 6px; color: var(--oxide); font-size: 7px; }
.sheet h1 {
  margin: 0;
  padding: 0 30px 20px;
  border-bottom: 3px double var(--ink);
  font-family: var(--book);
  font-size: 46px;
  font-weight: 400;
}
.sheet h1 small { display: inline-block; margin-left: 18px; color: var(--ink-soft); font-family: var(--mono); font-size: 11px; }
.sheet .stamp {
  position: absolute;
  top: 62px;
  right: 24px;
  padding: 7px 10px;
  border: 2px solid var(--oxide);
  color: var(--oxide);
  font-size: 7px;
  line-height: 1.5;
  transform: rotate(-1.2deg);
}
.registry dl { display: grid; grid-template-columns: repeat(4, 1fr); margin: 0; }
.registry dl > div { padding: 15px 18px; border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.registry dl > div:last-child { border-right: 0; }
.sheet dt { margin-bottom: 6px; color: var(--faint); font-size: 6px; }
.sheet dd { margin: 0; color: var(--ink); }
.sheet section:not(.registry) { padding: 18px 28px; border-bottom: 1px solid var(--ink); }
.sheet h2 { margin: 0 0 12px; font-family: var(--book); font-size: 13px; font-weight: 400; }
.dossier table th, .dossier table td { padding: 8px 6px; border: solid var(--rule-dark); border-width: 1px 0; font-size: 7px; text-align: left; }
.dossier table th { color: var(--faint); font-weight: 400; }
.notations ol { columns: 2; column-gap: 40px; padding-left: 17px; color: var(--ink-soft); font-family: var(--book); font-size: 9px; line-height: 1.6; }
.sheet footer { padding: 14px 28px; color: var(--faint); font-size: 6px; }

.fault { display: grid; place-items: center; padding: 20px; background: var(--paper); }
.fault main { width: min(470px, 100%); padding: 26px; border: solid var(--ink); border-width: 3px 1px 1px; }
.fault p { margin: 0 0 28px; color: var(--oxide); font-family: var(--book); font-size: 48px; }
.fault h1 { margin: 0 0 9px; font-family: var(--book); font-size: 16px; font-weight: 400; }
.fault span { display: block; color: var(--ink-soft); font-size: 8px; }
.fault a { display: inline-block; margin-top: 35px; color: var(--petrol); font-size: 7px; }

@media (max-width: 1120px) {
  .machine-line { grid-template-columns: 210px 1fr; }
  .machine-line nav { grid-column: 1 / -1; min-height: 32px; border-top: 1px solid var(--rule-dark); }
  .machine-line nav a { flex: 1; }
  .condition-bar { grid-template-columns: 125px repeat(3, 1fr); }
  .condition-bar > div:nth-child(n+5) { border-top: 1px solid var(--rule-dark); }
  .exchange-grid { grid-template-columns: 180px 1fr; }
  .controls {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    border-top: 3px double var(--ink);
  }
  .controls .panel-head { grid-column: 1 / -1; }
  .offset-block, .aperture-block { border-right: 1px solid var(--ink); }
  .phase-wheel { min-height: 100%; }
  .selection-readout { grid-column: 1 / 3; border-right: 1px solid var(--ink); }
  .align-button { grid-column: 3; align-self: end; }
  .alignment-result { grid-column: 3; }
  .monitor-button { grid-column: 3; }
  .monitor-readout { grid-column: 1 / 3; grid-row: 5 / 7; border-right: 1px solid var(--ink); }
  .control-note { grid-column: 1 / 3; }
  .archive-shell { grid-template-columns: 210px 1fr; }
  .frame-inspector { grid-column: 1; grid-row: 2; border-right: 1px solid var(--ink); }
  .cycle-selector { grid-row: 1; }
  .archive-field, .cycle-table { grid-column: 2; }
}

@media (max-width: 760px) {
  .exchange, .archive-page { padding-left: 0; padding-top: 27px; }
  .document-spine {
    inset: 0 0 auto;
    width: auto;
    height: 27px;
    flex-direction: row;
    padding: 0 9px;
    writing-mode: horizontal-tb;
    transform: none;
  }
  .document-spine b { margin: 0 15px 0 0; }
  .document-spine span { font-size: 7px; }
  .document-spine em { padding: 2px 5px; }
  .machine-line { grid-template-columns: 1fr; }
  .master-clock, .line-condition { min-height: 45px; border-right: 0; border-bottom: 1px solid var(--rule-dark); }
  .machine-line nav { grid-column: 1; }
  .condition-bar { grid-template-columns: repeat(2, 1fr); }
  .condition-bar > div { border-top: 1px solid var(--rule); }
  .condition-bar .condition-frame { grid-column: 1 / -1; }
  .exchange-grid { display: block; }
  .witness-bank, .receiver { border-right: 0; border-bottom: 3px double var(--ink); }
  .witness-list { display: grid; grid-template-columns: 1fr 1fr; }
  .witness-list li:nth-child(odd) { border-right: 1px solid var(--rule-dark); }
  .receipt-field { height: 330px; }
  .frame-strip { grid-template-columns: repeat(2, 1fr); }
  .frame-strip a { min-height: 43px; }
  .event-register li { grid-template-columns: 72px 35px 1fr; }
  .event-register li em { display: none; }
  .controls { display: block; border-top: 0; }
  .selection-readout { border-right: 0; }
  .align-button { width: calc(100% - 20px); }
  .monitor-readout { border-right: 0; }
  .lower-ledger { grid-template-columns: 1fr; }
  .ledger-title, .revision { border: 0; border-bottom: 1px solid var(--rule-dark); }
  .archive-mast { grid-template-columns: 1fr; }
  .archive-mast > * { border-right: 0; border-bottom: 1px solid var(--rule-dark); }
  .archive-mast div { grid-template-columns: 50px 1fr; }
  .archive-shell { display: block; }
  .cycle-selector, .archive-field, .cycle-table, .frame-inspector { border: 0; border-bottom: 3px double var(--ink); }
  .archive-map { grid-template-columns: repeat(8, 1fr); }
  .field-card > header { grid-template-columns: 72px 1fr; }
  .field-card header aside { grid-column: 1 / -1; min-height: 50px; border-top: 1px solid var(--ink); border-left: 0; }
  .card-columns, .card-intro { grid-template-columns: 1fr; }
  .card-columns article, .card-intro > * { border-right: 0; }
  .card-rule { grid-template-columns: 75px 1fr; }
  .card-rule em { grid-column: 1 / -1; border-top: 1px solid var(--ink); }
  .field-card footer { grid-template-columns: 1fr; }
  .field-card footer > * { border-right: 0; border-bottom: 1px solid var(--ink); }
  .registry dl { grid-template-columns: 1fr 1fr; }
  .sheet h1 small { display: block; margin: 7px 0 0; }
  .sheet .stamp { position: static; margin: 12px 28px; display: inline-block; }
  .notations ol { columns: 1; }
}

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