:root {
  --paper: #f2eedf;
  --paper-soft: #e9e3cf;
  --paper-bright: #fbf8ee;
  --ink: #102f33;
  --ink-soft: #385a5d;
  --muted: #526b6c;
  --tide: #16776f;
  --tide-deep: #0b5754;
  --vermilion: #b23624;
  --signal: #dce94b;
  --declaration-accent: #dce94b;
  --rule: rgba(16, 47, 51, .28);
  --rule-strong: rgba(16, 47, 51, .72);
  --wash: rgba(22, 119, 111, .09);
  --shadow: rgba(16, 47, 51, .13);
  --serif: Georgia, "Times New Roman", Times, serif;
  --sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #07181b;
    --paper-soft: #0c2527;
    --paper-bright: #102d2f;
    --ink: #f0ebda;
    --ink-soft: #c4d1ca;
    --muted: #91aaa5;
    --tide: #72d1c1;
    --tide-deep: #9be9db;
    --vermilion: #ff8067;
    --signal: #dce94b;
    --declaration-accent: #0b5754;
    --rule: rgba(196, 226, 216, .23);
    --rule-strong: rgba(196, 226, 216, .66);
    --wash: rgba(114, 209, 193, .08);
    --shadow: rgba(0, 0, 0, .26);
    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 87% 13%, var(--wash) 0 7%, transparent 7.2%),
    radial-gradient(circle at 87% 13%, transparent 0 14%, var(--wash) 14.2% 14.5%, transparent 14.7%),
    linear-gradient(115deg, transparent 0 63%, var(--wash) 63.1% 63.25%, transparent 63.35%),
    var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 18px;
  line-height: 1.62;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .32;
  background:
    repeating-linear-gradient(0deg, transparent 0 31px, var(--wash) 31px 32px),
    repeating-linear-gradient(90deg, transparent 0 31px, var(--wash) 31px 32px);
  mask-image: linear-gradient(to bottom, black, transparent 62%);
}

img,
audio,
canvas {
  max-width: 100%;
}

a {
  color: var(--tide-deep);
  text-decoration-color: color-mix(in srgb, var(--tide) 45%, transparent);
  text-underline-offset: .18em;
  text-decoration-thickness: .08em;
}

a:hover {
  text-decoration-color: var(--tide);
}

button,
input {
  font: inherit;
}

button,
.button {
  border: 1.5px solid var(--ink);
  border-radius: 0;
  background: var(--ink);
  color: var(--paper-bright);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .6rem;
  min-height: 48px;
  padding: .72rem 1rem;
  font-family: var(--mono);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .07em;
  line-height: 1.2;
  text-decoration: none;
  text-transform: uppercase;
  transition: transform .16s ease, background .16s ease, color .16s ease, box-shadow .16s ease;
}

button:hover,
.button:hover {
  background: var(--signal);
  color: #102f33;
  box-shadow: 5px 5px 0 var(--vermilion);
  transform: translate(-2px, -2px);
}

button:active,
.button:active {
  box-shadow: 2px 2px 0 var(--vermilion);
  transform: translate(0, 0);
}

button.secondary,
.button.secondary {
  background: transparent;
  color: var(--ink);
}

button.ghost,
.button.ghost {
  border-color: var(--rule-strong);
  background: transparent;
  color: var(--ink-soft);
}

:focus-visible {
  outline: 3px solid var(--vermilion);
  outline-offset: 4px;
}

::selection {
  background: var(--signal);
  color: #102f33;
}

.skip-link {
  position: fixed;
  top: .75rem;
  left: .75rem;
  z-index: 99;
  padding: .65rem .9rem;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--mono);
  font-size: .8rem;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 26px 0 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.embassy-lockup {
  display: inline-flex;
  align-items: center;
  gap: .72rem;
  color: var(--ink);
  font-family: var(--mono);
  font-size: .7rem;
  font-weight: 800;
  letter-spacing: .13em;
  line-height: 1.25;
  text-decoration: none;
  text-transform: uppercase;
}

.embassy-mark {
  position: relative;
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  border: 1.5px solid var(--ink);
  border-radius: 50%;
}

.embassy-mark::before,
.embassy-mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.embassy-mark::before {
  width: 21px;
  height: 21px;
  border: 1.5px solid var(--tide);
}

.embassy-mark::after {
  width: 6px;
  height: 6px;
  background: var(--vermilion);
  box-shadow: 14px 0 0 -1px var(--signal), -14px 0 0 -1px var(--tide);
}

.crumbs {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: .45rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .03em;
}

.crumbs a {
  color: var(--muted);
  text-decoration: none;
}

.crumbs a:hover,
.crumbs .here {
  color: var(--vermilion);
}

.crumbs .slash {
  opacity: .5;
}

main {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  flex: 1;
}

main.reading {
  width: min(820px, calc(100% - 40px));
}

.eyebrow,
.kicker,
.datum {
  font-family: var(--mono);
  font-size: .7rem;
  font-weight: 800;
  letter-spacing: .14em;
  line-height: 1.35;
  text-transform: uppercase;
}

.eyebrow,
.kicker {
  color: var(--vermilion);
}

.datum {
  color: var(--muted);
}

.stamp {
  display: inline-block;
  border: 2px solid currentColor;
  padding: .26rem .5rem .2rem;
  color: var(--vermilion);
  font-family: var(--mono);
  font-size: .64rem;
  font-weight: 900;
  letter-spacing: .11em;
  line-height: 1;
  text-transform: uppercase;
  transform: rotate(-1.3deg);
}

.stamp.tide {
  color: var(--tide-deep);
  transform: rotate(.8deg);
}

.stamp.unknown {
  border-style: dashed;
  color: var(--ink-soft);
  transform: rotate(-.4deg);
}

.hero {
  min-height: min(780px, calc(100vh - 78px));
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(310px, .82fr);
  align-items: center;
  gap: clamp(2.4rem, 7vw, 7rem);
  padding: clamp(3.8rem, 9vh, 7.5rem) 0 5rem;
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.hero h1,
.page-title {
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: -.045em;
  line-height: .93;
}

.hero h1 {
  max-width: 10ch;
  margin: 1rem 0 1.65rem;
  font-size: clamp(3.7rem, 8.2vw, 7.3rem);
}

.hero h1 em {
  display: block;
  color: var(--tide-deep);
  font-weight: 400;
}

.hero-declaration {
  max-width: 28ch;
  margin-bottom: 1.6rem;
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2.4vw, 1.8rem);
  line-height: 1.3;
}

.hero-declaration strong {
  box-shadow: inset 0 -.34em 0 var(--signal);
  font-weight: 500;
}

.hero-actions,
.page-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .8rem;
  margin-top: 2rem;
}

.receiver-wrap {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 470px;
}

.receiver {
  position: relative;
  width: min(40vw, 440px);
  aspect-ratio: 1;
  border: 1px solid var(--rule-strong);
  border-radius: 50%;
  background:
    radial-gradient(circle, var(--vermilion) 0 6px, transparent 7px),
    radial-gradient(circle, transparent 0 17%, var(--rule) 17.2% 17.6%, transparent 17.8% 35%, var(--rule) 35.2% 35.6%, transparent 35.8%),
    conic-gradient(from 36deg, transparent 0 10%, var(--wash) 10% 13%, transparent 13% 34%, var(--wash) 34% 37%, transparent 37% 67%, var(--wash) 67% 69%, transparent 69%);
  box-shadow: 0 24px 70px var(--shadow);
}

.receiver::before,
.receiver::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  pointer-events: none;
}

.receiver::before {
  width: 72%;
  height: 1px;
  background: var(--rule-strong);
  transform: translate(-50%, -50%) rotate(-18deg);
  transform-origin: center;
  animation: receiver-sweep 7s ease-in-out infinite alternate;
}

.receiver::after {
  width: 19%;
  height: 19%;
  border: 1.5px solid var(--signal);
  border-radius: 50%;
  transform: translate(69%, -165%);
  box-shadow: -196px 128px 0 -8px var(--paper), -196px 128px 0 -6px var(--tide);
}

.receiver-label {
  position: absolute;
  right: 2%;
  bottom: 3%;
  width: 13rem;
  padding: .8rem .9rem;
  border: 1px solid var(--rule-strong);
  background: var(--paper-bright);
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: .67rem;
  letter-spacing: .04em;
  line-height: 1.5;
  text-transform: uppercase;
  transform: rotate(1.2deg);
}

.receiver-label b {
  display: block;
  color: var(--vermilion);
}

@keyframes receiver-sweep {
  from { transform: translate(-50%, -50%) rotate(-32deg); }
  to { transform: translate(-50%, -50%) rotate(34deg); }
}

.declaration-band {
  margin: 0 calc(50% - 50vw);
  padding: clamp(3.5rem, 7vw, 6.5rem) max(20px, calc((100vw - 1180px) / 2));
  border-block: 1px solid var(--rule-strong);
  background: var(--ink);
  color: var(--paper-bright);
}

.declaration-band blockquote {
  max-width: 1030px;
  font-family: var(--serif);
  font-size: clamp(1.8rem, 4.5vw, 4.5rem);
  font-weight: 400;
  letter-spacing: -.035em;
  line-height: 1.08;
}

.declaration-band blockquote span {
  color: var(--declaration-accent);
}

.declaration-band .counterline {
  max-width: 60ch;
  margin-top: 1.7rem;
  color: color-mix(in srgb, var(--paper-bright) 68%, transparent);
}

.intro-grid {
  display: grid;
  grid-template-columns: .55fr 1.45fr;
  gap: clamp(2rem, 7vw, 7rem);
  padding: clamp(4.5rem, 9vw, 8rem) 0;
}

.intro-grid h2,
.section-title {
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3.6rem);
  font-weight: 500;
  letter-spacing: -.035em;
  line-height: 1.04;
}

.intro-grid .prose {
  max-width: 67ch;
  color: var(--ink-soft);
  font-size: 1.08rem;
}

.prose p + p {
  margin-top: 1.1rem;
}

.prose strong {
  color: var(--ink);
}

.room-map {
  padding-bottom: clamp(5rem, 10vw, 9rem);
}

.room-map-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 1.8rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--rule-strong);
}

.room-map-header p {
  max-width: 36ch;
  color: var(--muted);
  font-size: .9rem;
}

.room-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.room-card {
  position: relative;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  padding: 1.4rem;
  border: 1px solid var(--rule-strong);
  background: color-mix(in srgb, var(--paper-bright) 72%, transparent);
  color: var(--ink);
  text-decoration: none;
  overflow: hidden;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}

.room-card::after {
  content: attr(data-room);
  position: absolute;
  right: .5rem;
  bottom: -2.5rem;
  z-index: 0;
  color: var(--wash);
  font-family: var(--serif);
  font-size: 10rem;
  line-height: 1;
}

.room-card:hover {
  background: var(--paper-bright);
  box-shadow: 9px 9px 0 var(--tide);
  transform: translate(-4px, -4px);
}

.room-card .route {
  position: relative;
  z-index: 1;
  color: var(--vermilion);
  font-family: var(--mono);
  font-size: .7rem;
  font-weight: 800;
  letter-spacing: .07em;
}

.room-card h3 {
  position: relative;
  z-index: 1;
  margin: auto 0 .55rem;
  font-family: var(--serif);
  font-size: clamp(1.65rem, 3vw, 2.45rem);
  font-weight: 500;
  letter-spacing: -.03em;
  line-height: 1.03;
}

.room-card p {
  position: relative;
  z-index: 1;
  max-width: 45ch;
  color: var(--ink-soft);
  font-size: .88rem;
}

.page-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, .4fr);
  gap: 3rem;
  align-items: end;
  padding: clamp(4.2rem, 9vw, 8rem) 0 clamp(3rem, 7vw, 5rem);
  border-bottom: 1px solid var(--rule-strong);
}

.page-title {
  max-width: 13ch;
  margin-top: .8rem;
  font-size: clamp(3.3rem, 8vw, 6.8rem);
}

.page-head .lede {
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 1.28rem;
  line-height: 1.35;
}

.page-head .instruction {
  max-width: 36ch;
  padding-left: 1rem;
  border-left: 3px solid var(--signal);
  color: var(--ink-soft);
  font-size: .86rem;
}

.progress-rail {
  position: sticky;
  top: 0;
  z-index: 20;
  margin: 0 calc(50% - 50vw);
  padding: .62rem max(20px, calc((100vw - 1180px) / 2));
  border-bottom: 1px solid var(--rule-strong);
  background: color-mix(in srgb, var(--paper) 90%, transparent);
  backdrop-filter: blur(10px);
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.progress-rail strong {
  color: var(--vermilion);
}

.specimen-list {
  padding: 2rem 0 6rem;
}

.specimen {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: clamp(1.4rem, 4vw, 4rem);
  padding: clamp(3.5rem, 7vw, 6rem) 0;
  border-bottom: 1px solid var(--rule-strong);
}

.specimen-index {
  position: sticky;
  top: 4.5rem;
  align-self: start;
}

.specimen-number {
  display: block;
  color: var(--tide);
  font-family: var(--serif);
  font-size: 5.4rem;
  letter-spacing: -.08em;
  line-height: .8;
}

.specimen-index .datum {
  display: block;
  margin-top: 1rem;
}

.specimen-body h2 {
  max-width: 18ch;
  margin-bottom: .8rem;
  font-family: var(--serif);
  font-size: clamp(2rem, 4.3vw, 3.8rem);
  font-weight: 500;
  letter-spacing: -.035em;
  line-height: 1;
}

.specimen-body .setup {
  max-width: 58ch;
  margin-bottom: 1.6rem;
  color: var(--ink-soft);
}

.audio-desk {
  position: relative;
  padding: 1rem;
  border: 1px solid var(--rule-strong);
  background:
    repeating-linear-gradient(90deg, transparent 0 23px, var(--wash) 23px 24px),
    var(--paper-bright);
}

.audio-desk::before {
  content: "INCOMING / UNLABELED";
  display: block;
  margin-bottom: .55rem;
  color: var(--vermilion);
  font-family: var(--mono);
  font-size: .62rem;
  font-weight: 900;
  letter-spacing: .12em;
}

.audio-desk audio {
  display: block;
  width: 100%;
  min-height: 44px;
  accent-color: var(--tide);
}

.sound-description {
  margin-top: .65rem;
  color: var(--muted);
  font-size: .76rem;
  font-style: italic;
}

.observation-desk {
  margin-top: 1.5rem;
}

.observation-desk fieldset {
  border: 0;
}

.observation-desk legend {
  margin-bottom: .7rem;
  color: var(--ink);
  font-family: var(--mono);
  font-size: .69rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.observation-options {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.observation-options label {
  cursor: pointer;
}

.observation-options input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.observation-options span {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: .55rem .8rem;
  border: 1px solid var(--rule-strong);
  background: transparent;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: .7rem;
  line-height: 1.2;
}

.observation-options input:checked + span {
  background: var(--signal);
  color: #102f33;
  box-shadow: inset 0 0 0 2px #102f33;
}

.observation-options input:focus-visible + span {
  outline: 3px solid var(--vermilion);
  outline-offset: 3px;
}

.reveal-control {
  display: none;
  margin-top: 1.2rem;
}

.js .reveal-control {
  display: inline-flex;
}

.source-context {
  margin-top: 1.6rem;
  padding: 1.25rem;
  border: 1px solid var(--rule-strong);
  border-left: 7px solid var(--tide);
  background: var(--paper-soft);
}

.js .source-context {
  display: none;
}

.js .source-context.revealed {
  display: block;
  animation: register .28s ease-out both;
}

@keyframes register {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.source-context h3 {
  margin: .8rem 0 .22rem;
  font-family: var(--serif);
  font-size: 1.85rem;
  font-weight: 500;
  letter-spacing: -.025em;
  line-height: 1.1;
}

.latin {
  color: var(--muted);
  font-family: var(--serif);
  font-style: italic;
}

.context-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.1rem;
}

.context-note {
  padding-top: .85rem;
  border-top: 1px solid var(--rule);
  color: var(--ink-soft);
  font-size: .82rem;
}

.context-note b {
  display: block;
  margin-bottom: .2rem;
  color: var(--vermilion);
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.pressure-desk {
  margin-top: 1.5rem;
  padding-top: 1.35rem;
  border-top: 1px dashed var(--rule-strong);
}

.pressure-labels {
  display: flex;
  justify-content: space-between;
  gap: .5rem;
  margin-bottom: .5rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.pressure-desk input[type="range"] {
  width: 100%;
  accent-color: var(--vermilion);
}

.pressure-reading {
  min-height: 126px;
  margin-top: .9rem;
  padding: 1rem;
  border-left: 4px solid var(--tide);
  background: var(--paper-bright);
}

.pressure-reading[data-level="2"] {
  border-left-color: var(--signal);
}

.pressure-reading[data-level="3"] {
  border-left-color: var(--vermilion);
  background: color-mix(in srgb, var(--vermilion) 9%, var(--paper-bright));
}

.pressure-reading .pressure-stage {
  display: block;
  color: var(--tide-deep);
  font-family: var(--mono);
  font-size: .64rem;
  font-weight: 900;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.pressure-reading p {
  margin-top: .4rem;
  font-family: var(--serif);
  font-size: 1.3rem;
  line-height: 1.3;
}

.pressure-reading small {
  display: block;
  margin-top: .45rem;
  color: var(--muted);
  font-size: .73rem;
}

.pressure-copy + .pressure-copy {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
}

.js .pressure-copy {
  display: none;
}

.js .pressure-copy.active {
  display: block;
  animation: register .2s ease-out both;
}

.pressure-fallback {
  margin: 1rem 0 0 1.2rem;
  color: var(--ink-soft);
  font-size: .8rem;
}

.js .pressure-fallback {
  display: none;
}

.remainder-control {
  display: none;
  margin-top: 1rem;
}

.js .remainder-control {
  display: inline-flex;
}

.remainder-control.kept {
  border-style: dashed;
  background: transparent;
  color: var(--ink);
  box-shadow: none;
  transform: none;
}

.listening-summary {
  margin-top: 4rem;
  padding: clamp(2rem, 5vw, 4rem);
  border: 1px solid var(--rule-strong);
  background: var(--ink);
  color: var(--paper-bright);
  text-align: center;
}

.js .listening-summary {
  display: none;
}

.js .listening-summary.complete {
  display: block;
  animation: register .35s ease-out both;
}

.listening-summary h2 {
  margin: 1rem auto .7rem;
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3.4rem);
  font-weight: 500;
  letter-spacing: -.03em;
  line-height: 1.05;
}

.listening-summary p {
  max-width: 50ch;
  margin-inline: auto;
  color: color-mix(in srgb, var(--paper-bright) 72%, transparent);
}

.listening-summary .button {
  margin-top: 1.3rem;
  border-color: var(--signal);
  background: var(--signal);
  color: #102f33;
}

.composer {
  padding: clamp(3.5rem, 8vw, 7rem) 0;
}

.composer-grid {
  display: grid;
  grid-template-columns: minmax(280px, .75fr) minmax(0, 1.25fr);
  gap: clamp(1.5rem, 5vw, 4rem);
}

.control-panel,
.signal-panel {
  border: 1px solid var(--rule-strong);
  background: color-mix(in srgb, var(--paper-bright) 76%, transparent);
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .7rem .9rem;
  border-bottom: 1px solid var(--rule-strong);
  font-family: var(--mono);
  font-size: .65rem;
  font-weight: 800;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.control-panel form {
  padding: 1.2rem;
}

.control-group + .control-group {
  margin-top: 1.35rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
}

.control-group legend,
.control-group > label {
  display: block;
  margin-bottom: .65rem;
  color: var(--ink);
  font-family: var(--mono);
  font-size: .7rem;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.segmented {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .35rem;
}

.segmented label {
  cursor: pointer;
}

.segmented input {
  position: absolute;
  opacity: 0;
}

.segmented span {
  min-height: 56px;
  display: grid;
  place-items: center;
  padding: .45rem;
  border: 1px solid var(--rule-strong);
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: .66rem;
  line-height: 1.2;
  text-align: center;
  text-transform: uppercase;
}

.segmented input:checked + span {
  background: var(--ink);
  color: var(--paper-bright);
}

.segmented input:focus-visible + span {
  outline: 3px solid var(--vermilion);
  outline-offset: 3px;
}

.repeat-row {
  display: grid;
  grid-template-columns: 1fr 2.4rem;
  gap: .8rem;
  align-items: center;
}

.repeat-row input {
  width: 100%;
  accent-color: var(--vermilion);
}

.repeat-output {
  display: grid;
  place-items: center;
  width: 2.4rem;
  aspect-ratio: 1;
  border: 1px solid var(--rule-strong);
  font-family: var(--mono);
  font-size: .75rem;
}

.control-panel .button {
  width: 100%;
  margin-top: 1.5rem;
}

.signal-stage {
  position: relative;
  min-height: 420px;
  display: grid;
  place-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at center, transparent 0 16%, var(--wash) 16.3% 16.7%, transparent 17% 31%, var(--wash) 31.3% 31.7%, transparent 32%),
    repeating-linear-gradient(0deg, transparent 0 27px, var(--wash) 27px 28px);
}

.signal-field {
  width: min(88%, 600px);
  min-height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 2rem;
}

.signal-mark {
  --rhythm-y: 0px;
  --rhythm-rotate: 0deg;
  --rhythm-scale: 1;
  --interval-y: 0px;
  display: inline-block;
  width: 30px;
  height: 30px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--signal-color, var(--signal));
  box-shadow: var(--signal-shadow, none);
  transform:
    translateY(calc(var(--rhythm-y) + var(--interval-y)))
    rotate(var(--rhythm-rotate))
    scale(var(--rhythm-scale));
  transition: transform .22s ease, border-radius .22s ease;
}

.signal-field[data-color="tide"] { --signal-color: var(--tide); }
.signal-field[data-color="signal"] { --signal-color: var(--signal); }
.signal-field[data-color="ember"] { --signal-color: var(--vermilion); }

.signal-field[data-rhythm="broken"] .signal-mark:nth-child(3n) {
  --rhythm-y: 28px;
  --rhythm-rotate: 45deg;
  border-radius: 2px;
}

.signal-field[data-rhythm="syncopated"] .signal-mark:nth-child(even) {
  --rhythm-y: -24px;
  --rhythm-scale: .7;
}

.signal-field[data-interval="wide"] {
  gap: 2.6rem;
}

.signal-field[data-interval="descending"] .signal-mark:nth-child(1) { --interval-y: -45px; }
.signal-field[data-interval="descending"] .signal-mark:nth-child(2) { --interval-y: -22px; }
.signal-field[data-interval="descending"] .signal-mark:nth-last-child(2) { --interval-y: 22px; }
.signal-field[data-interval="descending"] .signal-mark:last-child { --interval-y: 45px; }

.signal-caption {
  position: absolute;
  right: .8rem;
  bottom: .7rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.interpretations {
  margin-top: 2rem;
}

.js .interpretations {
  display: none;
}

.js .interpretations.visible {
  display: block;
  animation: register .3s ease-out both;
}

.interpretations h2 {
  max-width: 17ch;
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 500;
  letter-spacing: -.035em;
  line-height: 1.04;
}

.reading-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .8rem;
  margin-top: 1.3rem;
}

.reading-card {
  min-height: 225px;
  padding: 1.1rem;
  border: 1px solid var(--rule-strong);
  background: var(--paper-bright);
}

.reading-card h3 {
  color: var(--vermilion);
  font-family: var(--mono);
  font-size: .66rem;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.reading-card p {
  margin-top: 2rem;
  font-family: var(--serif);
  font-size: 1.25rem;
  line-height: 1.3;
}

.reading-card small {
  display: block;
  margin-top: .8rem;
  color: var(--muted);
  font-size: .72rem;
}

.interpretation-note {
  margin-top: 1rem;
  padding: 1rem;
  border-left: 5px solid var(--signal);
  color: var(--ink-soft);
}

.share-status {
  margin-left: .7rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: .7rem;
}

.article-intro {
  padding: clamp(3.5rem, 8vw, 6rem) 0;
  border-bottom: 1px solid var(--rule-strong);
}

.article-intro p {
  max-width: 62ch;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 1.22rem;
  line-height: 1.55;
}

.article-intro p + p {
  margin-top: 1.1rem;
}

.articles {
  counter-reset: articles;
  padding-bottom: 6rem;
}

.article {
  counter-increment: articles;
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 2rem;
  padding: clamp(3rem, 7vw, 5rem) 0;
  border-bottom: 1px solid var(--rule-strong);
}

.article::before {
  content: "0" counter(articles);
  color: var(--tide);
  font-family: var(--serif);
  font-size: 4rem;
  letter-spacing: -.06em;
  line-height: .9;
}

.article h2 {
  max-width: 18ch;
  font-family: var(--serif);
  font-size: clamp(2rem, 4.6vw, 3.7rem);
  font-weight: 500;
  letter-spacing: -.035em;
  line-height: 1;
}

.article p {
  max-width: 61ch;
  margin-top: 1rem;
  color: var(--ink-soft);
}

.article .article-line {
  display: block;
  margin-top: 1.3rem;
  padding-left: 1rem;
  border-left: 4px solid var(--signal);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.25rem;
}

.dispatches {
  padding: clamp(3rem, 7vw, 6rem) 0;
}

.dispatch {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  padding: 2.6rem 0;
  border-bottom: 1px solid var(--rule-strong);
}

.dispatch-meta {
  color: var(--muted);
  font-family: var(--mono);
  font-size: .67rem;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.dispatch-meta b {
  display: block;
  margin-bottom: .45rem;
  color: var(--vermilion);
}

.dispatch-body h2 {
  font-family: var(--serif);
  font-size: clamp(1.7rem, 3.4vw, 2.7rem);
  font-weight: 500;
  letter-spacing: -.025em;
  line-height: 1.08;
}

.dispatch-body p,
.dispatch-body ul {
  max-width: 66ch;
  margin-top: .9rem;
  color: var(--ink-soft);
}

.dispatch-body ul,
.source-list {
  padding-left: 1.2rem;
}

.dispatch-body li + li,
.source-list li + li {
  margin-top: .6rem;
}

.source-list {
  margin-top: 1rem;
  color: var(--ink-soft);
}

.source-list strong {
  color: var(--ink);
}

.honesty-box {
  margin: 3rem 0;
  padding: 1.25rem;
  border: 1px dashed var(--vermilion);
  background: color-mix(in srgb, var(--vermilion) 6%, transparent);
  color: var(--ink-soft);
  font-size: .86rem;
}

.honesty-box b {
  color: var(--vermilion);
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--rule-strong);
  background: var(--paper-soft);
}

.footer-inner {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 2rem;
  padding: 2.1rem 0 2.5rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: .68rem;
  line-height: 1.65;
}

.footer-inner strong {
  color: var(--ink);
}

.footer-nav {
  display: flex;
  align-items: start;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: .8rem 1.1rem;
}

.footer-nav a {
  color: var(--muted);
}

.fine-print {
  color: var(--muted);
  font-size: .74rem;
}

@media (max-width: 820px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: 0;
    gap: 1rem;
    padding-top: 4.5rem;
  }

  .receiver-wrap {
    min-height: 390px;
  }

  .receiver {
    width: min(78vw, 380px);
  }

  .intro-grid,
  .page-head,
  .composer-grid {
    grid-template-columns: 1fr;
  }

  .room-cards,
  .reading-cards {
    grid-template-columns: 1fr;
  }

  .room-card {
    min-height: 235px;
  }

  .page-head {
    gap: 1.5rem;
  }

  .specimen {
    grid-template-columns: 120px minmax(0, 1fr);
  }

  .specimen-number {
    font-size: 4rem;
  }

  .context-grid {
    grid-template-columns: 1fr;
  }

  .article {
    grid-template-columns: 76px minmax(0, 1fr);
  }

  .dispatch {
    grid-template-columns: 120px minmax(0, 1fr);
  }
}

@media (max-width: 600px) {
  body {
    font-size: 16px;
  }

  .site-header,
  main,
  main.reading,
  .footer-inner {
    width: min(100% - 28px, 1180px);
  }

  .site-header {
    align-items: flex-start;
    padding-top: 18px;
  }

  .embassy-lockup span:last-child {
    display: none;
  }

  .crumbs {
    padding-top: .4rem;
  }

  .hero {
    padding-top: 3.4rem;
  }

  .hero h1 {
    max-width: 100%;
    font-size: clamp(2.35rem, 14vw, 5.1rem);
    line-height: .96;
    text-wrap: balance;
  }

  .hero h1 em {
    overflow-wrap: anywhere;
  }

  .hero-actions,
  .page-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-actions .button,
  .page-actions .button,
  .page-actions button {
    width: 100%;
  }

  .receiver-wrap {
    min-height: 330px;
  }

  .receiver-label {
    width: 11.5rem;
  }

  .declaration-band {
    padding-inline: 20px;
  }

  .intro-grid {
    gap: 1.3rem;
  }

  .room-map-header {
    align-items: start;
    flex-direction: column;
    gap: .8rem;
  }

  .page-title {
    font-size: clamp(3rem, 15vw, 5.2rem);
  }

  .embassy-lockup,
  .crumbs,
  .eyebrow,
  .kicker,
  .datum,
  .stamp,
  .receiver-label,
  .progress-rail,
  .audio-desk::before,
  .observation-desk legend,
  .observation-options span,
  .context-note b,
  .pressure-labels,
  .pressure-reading .pressure-stage,
  .pressure-reading small,
  .panel-head,
  .control-group legend,
  .control-group > label,
  .segmented span,
  .signal-caption,
  .reading-card h3,
  .reading-card small,
  .room-card .route,
  .share-status,
  .dispatch-meta,
  .honesty-box b,
  .footer-inner,
  .fine-print {
    font-size: .75rem;
  }

  .pressure-labels {
    gap: .3rem;
    letter-spacing: .01em;
  }

  .specimen {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .specimen-index {
    position: static;
    display: flex;
    align-items: end;
    justify-content: space-between;
  }

  .specimen-index .datum {
    margin-top: 0;
    text-align: right;
  }

  .segmented {
    grid-template-columns: 1fr;
  }

  .signal-stage {
    min-height: 330px;
  }

  .signal-field {
    gap: .7rem;
    padding: 1rem;
  }

  .signal-field[data-interval="wide"] {
    gap: 1.3rem;
  }

  .article,
  .dispatch {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .dispatch-meta {
    display: flex;
    gap: .7rem;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-nav {
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}

@media print {
  :root {
    --paper: white;
    --paper-soft: white;
    --paper-bright: white;
    --ink: black;
    --ink-soft: #222;
    --muted: #444;
    --rule: #aaa;
    --rule-strong: #333;
  }

  body::before,
  .site-header,
  .site-footer,
  .page-actions,
  .receiver-wrap {
    display: none !important;
  }

  body,
  main,
  main.reading {
    width: 100%;
    background: white;
    color: black;
  }

  .page-head {
    padding-top: 0;
  }

  .article {
    break-inside: avoid;
    padding: 1.2rem 0;
  }

  a {
    color: black;
    text-decoration: none;
  }
}