:root {
  color-scheme: dark;
  --ink: #151815;
  --ink-2: #1c211d;
  --steel: #252b27;
  --steel-2: #343c36;
  --paper: #e8e0d2;
  --paper-2: #d7cdbc;
  --orange: #f05a36;
  --orange-dark: #ae3d26;
  --green: #77a797;
  --green-dark: #416c60;
  --amber: #d7a941;
  --rust: #9b4a3a;
  --mist: #aeb8b0;
  --white: #fffaf1;
  --line-dark: #3b443d;
  --line-light: #a79d8d;
  --serif: Georgia, "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --radius: 1.2rem;
  --shadow: 0 1.5rem 4rem rgb(0 0 0 / 22%);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--ink);
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

button,
input {
  font: inherit;
}

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

a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--orange);
}

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

[hidden] {
  display: none !important;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  min-height: 2.75rem;
  padding: 0.7rem 1rem;
  transform: translateY(-180%);
  background: var(--paper);
  color: var(--ink);
  font-weight: 800;
}

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

.site-shell {
  width: min(100%, 100rem);
  margin: 0 auto;
  border-inline: 1px solid var(--line-dark);
  background: var(--ink);
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 5rem;
  padding: 1rem clamp(1.2rem, 3vw, 3.5rem);
  border-bottom: 1px solid var(--line-dark);
  background: var(--ink);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 2.75rem;
  text-decoration: none;
}

.brand span {
  display: grid;
  place-items: center;
  width: 2.35rem;
  height: 2.35rem;
  border: 1px solid var(--orange);
  border-radius: 50%;
  color: var(--orange);
  font: 700 0.72rem/1 var(--mono);
}

.brand b {
  font-size: 0.94rem;
  letter-spacing: 0.02em;
}

.site-nav,
.site-footer nav {
  display: flex;
  align-items: center;
  gap: clamp(0.8rem, 2vw, 2rem);
}

.site-nav a,
.site-footer nav a {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  color: var(--paper-2);
  font: 700 0.78rem/1 var(--mono);
  letter-spacing: 0.04em;
  text-decoration: none;
  text-transform: uppercase;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(31rem, 1.05fr);
  gap: clamp(2rem, 4vw, 5rem);
  min-height: calc(100svh - 5rem);
  padding: clamp(3.5rem, 7vw, 7.5rem) clamp(1.2rem, 3vw, 3.5rem) 3.5rem;
  background:
    linear-gradient(90deg, transparent 0 49.9%, rgb(119 167 151 / 8%) 50% 50.1%, transparent 50.2%),
    var(--ink);
}

.hero-copy {
  align-self: center;
  width: 100%;
  min-width: 0;
  max-width: 45rem;
}

.eyebrow,
.section-index,
.card-label {
  margin: 0 0 1.2rem;
  color: var(--orange);
  font: 800 0.73rem/1.3 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 10ch;
  margin-bottom: 1.7rem;
  color: var(--white);
  font: 400 clamp(4.6rem, 9.2vw, 9.6rem)/0.82 var(--serif);
  letter-spacing: -0.075em;
}

.dek {
  max-width: 39rem;
  margin-bottom: 1.25rem;
  color: var(--paper);
  font-size: clamp(1.15rem, 1.8vw, 1.48rem);
  line-height: 1.45;
}

.dek strong {
  color: var(--white);
}

.thesis {
  max-width: 38rem;
  margin-bottom: 2rem;
  padding-left: 1.2rem;
  border-left: 3px solid var(--green);
  color: var(--mist);
  font-size: 1rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.78rem 1.1rem;
  border: 1px solid currentColor;
  border-radius: 999px;
  cursor: pointer;
  font: 800 0.78rem/1 var(--mono);
  letter-spacing: 0.02em;
  text-decoration: none;
}

.button-primary {
  border-color: var(--orange);
  background: var(--orange);
  color: #130f0d;
}

.button-primary:hover {
  border-color: var(--white);
  background: var(--white);
  color: var(--ink);
}

.button-ghost {
  background: transparent;
  color: inherit;
}

.button-ghost:hover {
  border-color: var(--orange);
  color: var(--orange);
}

.safety-line {
  max-width: 40rem;
  margin-bottom: 0;
  color: var(--mist);
  font-size: 0.82rem;
}

.safety-line strong {
  color: var(--paper);
}

.door-figure {
  align-self: center;
  width: 100%;
  min-width: 0;
  margin: 0;
}

.door-control {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.45rem;
  margin-bottom: 0.75rem;
}

.door-filter {
  min-width: 0;
  min-height: 4.75rem;
  padding: 0.7rem;
  border: 1px solid var(--line-dark);
  border-radius: 0.6rem;
  background: #111411;
  color: var(--mist);
  cursor: pointer;
  text-align: left;
}

.door-filter span,
.door-filter strong {
  display: block;
}

.door-filter span {
  overflow: hidden;
  margin-bottom: 0.35rem;
  font: 700 0.62rem/1.2 var(--mono);
  letter-spacing: 0.035em;
  text-overflow: ellipsis;
  text-transform: uppercase;
  white-space: nowrap;
}

.door-filter strong {
  color: var(--paper);
  font: 700 1.15rem/1 var(--mono);
}

.door-filter:hover,
.door-filter.is-active {
  border-color: var(--orange);
}

.door-filter.is-active {
  background: var(--orange);
  color: var(--ink);
}

.door-filter.is-active strong {
  color: var(--ink);
}

.pressure-door {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 1.32;
  min-height: 26rem;
  overflow: hidden;
  border: 1px solid #535d55;
  border-radius: 42% 42% 1rem 1rem;
  background:
    repeating-linear-gradient(92deg, rgb(255 255 255 / 2%) 0 1px, transparent 1px 11px),
    var(--steel);
  box-shadow: inset 0 0 0 0.8rem #1c211d, inset 0 0 0 0.9rem #4a554d, var(--shadow);
}

.pressure-door::before,
.pressure-door::after {
  position: absolute;
  z-index: 2;
  content: "";
  pointer-events: none;
}

.pressure-door::before {
  inset: 1.15rem;
  border: 1px solid rgb(232 224 210 / 28%);
  border-radius: 41% 41% 0.55rem 0.55rem;
}

.pressure-door::after {
  width: 1px;
  height: 75%;
  background: var(--orange);
  box-shadow: 0 0 1rem rgb(240 90 54 / 75%);
}

#door-canvas {
  position: absolute;
  inset: 1.5rem;
  width: calc(100% - 3rem);
  height: calc(100% - 3rem);
  opacity: 0.78;
}

.door-ring {
  position: absolute;
  z-index: 3;
  width: min(52%, 19rem);
  aspect-ratio: 1;
  border: 0.85rem solid #303832;
  border-radius: 50%;
  box-shadow: 0 0 0 2px var(--green), inset 0 0 0 2px var(--green), 0 0 0 1.3rem rgb(14 17 15 / 58%);
  pointer-events: none;
}

.door-ring i {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0.62rem;
  height: 0.62rem;
  margin: -0.31rem;
  border-radius: 50%;
  background: var(--paper);
  box-shadow: 0 0 0 0.2rem #111411;
}

.door-ring i:nth-child(1) { transform: translateY(-9.6rem); }
.door-ring i:nth-child(2) { transform: rotate(45deg) translateY(-9.6rem) rotate(-45deg); }
.door-ring i:nth-child(3) { transform: translateX(9.6rem); }
.door-ring i:nth-child(4) { transform: rotate(135deg) translateY(-9.6rem) rotate(-135deg); }
.door-ring i:nth-child(5) { transform: translateY(9.6rem); }
.door-ring i:nth-child(6) { transform: rotate(225deg) translateY(-9.6rem) rotate(-225deg); }
.door-ring i:nth-child(7) { transform: translateX(-9.6rem); }
.door-ring i:nth-child(8) { transform: rotate(315deg) translateY(-9.6rem) rotate(-315deg); }

.door-readout {
  position: relative;
  z-index: 4;
  display: grid;
  place-items: center;
  width: min(40%, 14rem);
  aspect-ratio: 1;
  padding: 1rem;
  border: 1px solid var(--green);
  border-radius: 50%;
  background: rgb(17 20 17 / 92%);
  text-align: center;
}

.door-readout span,
.door-readout strong,
.door-readout small {
  display: block;
}

.door-readout span {
  color: var(--green);
  font: 800 0.63rem/1.1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.door-readout strong {
  color: var(--white);
  font: 700 clamp(2rem, 4vw, 3.5rem)/1 var(--mono);
  letter-spacing: -0.08em;
}

.door-readout small {
  max-width: 10rem;
  color: var(--mist);
  font: 600 0.65rem/1.25 var(--mono);
}

.door-figure figcaption {
  margin-top: 0.8rem;
  color: var(--mist);
  font: 0.73rem/1.4 var(--mono);
}

.toc {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  gap: 0;
  overflow-x: auto;
  border-block: 1px solid var(--line-dark);
  background: rgb(21 24 21 / 96%);
  scrollbar-width: thin;
}

.toc a {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  min-height: 3.2rem;
  padding: 0.7rem 1.15rem;
  border-right: 1px solid var(--line-dark);
  color: var(--paper-2);
  font: 700 0.7rem/1 var(--mono);
  letter-spacing: 0.03em;
  text-decoration: none;
  text-transform: uppercase;
}

.toc a:hover {
  background: var(--orange);
  color: var(--ink);
}

.content-section {
  padding: clamp(4rem, 7vw, 7.5rem) clamp(1.2rem, 5vw, 6.5rem);
  border-bottom: 1px solid var(--line-light);
  background: var(--paper);
  color: var(--ink);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(8rem, 0.28fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 5rem);
  max-width: 78rem;
  margin: 0 auto clamp(3rem, 5vw, 5rem);
}

.section-heading h2 {
  max-width: 18ch;
  margin-bottom: 0.8rem;
  font: 400 clamp(2.5rem, 5vw, 5.3rem)/0.95 var(--serif);
  letter-spacing: -0.055em;
}

.section-heading div > p {
  max-width: 48rem;
  margin-bottom: 0;
  color: #4e544f;
  font-size: 1.05rem;
}

.section-index {
  margin-top: 0.7rem;
}

.filter-proof {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: stretch;
  max-width: 78rem;
  margin: 0 auto 2.5rem;
}

.filter-proof article {
  min-width: 0;
  padding: clamp(1.3rem, 2.4vw, 2.2rem);
  border: 1px solid var(--line-light);
  background: rgb(255 250 241 / 38%);
}

.filter-proof article:first-child {
  border-radius: var(--radius) 0 0 var(--radius);
}

.filter-proof article:last-child {
  border-radius: 0 var(--radius) var(--radius) 0;
}

.filter-proof .proof-final {
  border-color: var(--orange);
  background: var(--orange);
  color: var(--ink);
}

.proof-number {
  display: block;
  margin-bottom: 1.4rem;
  font: 700 clamp(2.4rem, 5vw, 4.8rem)/0.9 var(--mono);
  letter-spacing: -0.085em;
}

.filter-proof h3 {
  margin-bottom: 0.55rem;
  font: 700 1.1rem/1.2 var(--sans);
}

.filter-proof p {
  margin-bottom: 0;
  color: #515651;
  font-size: 0.86rem;
}

.filter-proof .proof-final p {
  color: #3f2119;
}

.proof-arrow {
  display: grid;
  place-items: center;
  width: 3rem;
  color: var(--orange-dark);
  font: 700 1.8rem/1 var(--mono);
}

.status-ledger {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  max-width: 78rem;
  margin: 0 auto;
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  overflow: hidden;
}

.status-ledger > div {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.15rem 0.65rem;
  align-items: center;
  padding: 1.1rem;
  border-right: 1px solid var(--line-light);
}

.status-ledger > div:last-child {
  border-right: 0;
}

.status-ledger strong {
  font: 700 1.35rem/1 var(--mono);
}

.status-ledger div > span:last-child {
  grid-column: 2;
  color: #5b605b;
  font-size: 0.75rem;
}

.status-dot {
  grid-row: span 2;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
}

.status-dot.functional { background: var(--green-dark); }
.status-dot.partial { background: var(--amber); }
.status-dot.nonfunctional { background: var(--rust); }
.status-dot.unknown { background: #7e7d76; }

.boundary-note,
.timeline-note,
.recommendation-boundary {
  max-width: 78rem;
  margin: 1.2rem auto 0;
  color: #565c56;
  font-size: 0.82rem;
}

.explorer-section {
  background: var(--paper-2);
}

.explorer-shell {
  max-width: 78rem;
  margin: 0 auto;
  padding: clamp(1.25rem, 3vw, 2.5rem);
  border: 1px solid #505b52;
  border-radius: var(--radius);
  background: var(--ink-2);
  color: var(--paper);
  box-shadow: var(--shadow);
}

.place-form > label {
  display: block;
  margin-bottom: 0.65rem;
  color: var(--paper);
  font: 800 0.75rem/1.2 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.search-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.7rem;
}

.search-row input {
  min-width: 0;
  min-height: 3.3rem;
  padding: 0.8rem 1rem;
  border: 1px solid #69756c;
  border-radius: 999px;
  background: #0f120f;
  color: var(--white);
}

.search-row input::placeholder {
  color: #889188;
}

.field-help {
  margin: 0.7rem 0 1.2rem;
  color: var(--mist);
  font-size: 0.77rem;
}

.sample-places {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
}

.sample-places span {
  margin-right: 0.3rem;
  color: var(--mist);
  font: 700 0.7rem/1 var(--mono);
  text-transform: uppercase;
}

.sample-places button {
  min-height: 2.75rem;
  padding: 0.5rem 0.8rem;
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  background: var(--steel);
  color: var(--paper);
  cursor: pointer;
  font-size: 0.78rem;
}

.sample-places button:hover {
  border-color: var(--orange);
}

.explorer-status {
  margin-top: 1.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line-dark);
  color: var(--green);
  font: 0.78rem/1.4 var(--mono);
}

.results-panel {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--orange);
}

.results-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: end;
}

.results-head h3 {
  margin-bottom: 0;
  color: var(--white);
  font: 400 clamp(2rem, 4vw, 3.8rem)/1 var(--serif);
  letter-spacing: -0.04em;
}

.result-stats {
  display: flex;
  gap: 0.4rem;
}

.result-stats div {
  min-width: 6.8rem;
  padding: 0.7rem;
  border: 1px solid var(--line-dark);
  border-radius: 0.55rem;
  background: #101310;
}

.result-stats strong,
.result-stats span {
  display: block;
}

.result-stats strong {
  color: var(--white);
  font: 700 1.3rem/1 var(--mono);
}

.result-stats span {
  margin-top: 0.3rem;
  color: var(--mist);
  font-size: 0.65rem;
}

.result-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.7rem 0 0;
  padding: 0;
  border: 0;
}

.result-filters legend {
  width: 100%;
  margin-bottom: 0.5rem;
  color: var(--mist);
  font: 700 0.68rem/1 var(--mono);
  text-transform: uppercase;
}

.result-filters label {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.78rem;
}

.result-filters label:has(input:checked) {
  border-color: var(--green);
  background: var(--green);
  color: var(--ink);
}

.result-filters input {
  margin-right: 0.4rem;
  accent-color: var(--orange);
}

.result-boundary {
  margin: 1.2rem 0;
  padding: 0.8rem 1rem;
  border-left: 3px solid var(--orange);
  background: rgb(240 90 54 / 8%);
  color: var(--paper-2);
  font-size: 0.8rem;
}

.record-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.record-card {
  display: grid;
  grid-template-columns: 4.2rem minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: start;
  padding: 1rem 0;
  border-top: 1px solid var(--line-dark);
}

.record-id {
  color: var(--green);
  font: 700 0.72rem/1.3 var(--mono);
}

.record-main strong {
  display: block;
  color: var(--paper);
  font-size: 0.93rem;
}

.record-main small {
  display: block;
  margin-top: 0.35rem;
  color: var(--mist);
  font-size: 0.72rem;
}

.record-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.35rem;
  max-width: 22rem;
}

.record-tag {
  display: inline-flex;
  align-items: center;
  min-height: 1.75rem;
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  color: var(--mist);
  font: 700 0.64rem/1 var(--mono);
}

.record-tag.status-f { border-color: var(--green); color: var(--green); }
.record-tag.status-p { border-color: var(--amber); color: var(--amber); }
.record-tag.status-n { border-color: var(--rust); color: #d98170; }

.record-card a {
  color: var(--green);
}

.noscript-note {
  margin: 1.5rem 0 0;
  padding: 1rem;
  border: 1px solid var(--orange);
  color: var(--paper);
  font-size: 0.83rem;
}

.coordinates-section,
.quality-section {
  border-color: var(--line-dark);
  background: #111411;
  color: var(--paper);
}

.coordinates-section .section-heading div > p,
.quality-section .section-heading div > p {
  color: var(--mist);
}

.coordinate-case {
  display: grid;
  grid-template-columns: minmax(20rem, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: center;
  max-width: 78rem;
  margin: 0 auto;
}

.coordinate-demo {
  padding: clamp(1.3rem, 3vw, 2.5rem);
  border: 1px solid var(--orange);
  border-radius: var(--radius);
  background: var(--steel);
  box-shadow: var(--shadow);
}

.coordinate-demo p,
.coordinate-demo div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin: 0;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--line-dark);
}

.coordinate-demo span {
  color: var(--mist);
  font: 700 0.72rem/1 var(--mono);
  text-transform: uppercase;
}

.coordinate-demo strong {
  color: var(--white);
  font: 700 clamp(1.7rem, 4vw, 3.4rem)/1 var(--mono);
  letter-spacing: -0.06em;
}

.coordinate-demo mark {
  padding: 0;
  background: var(--orange);
  color: var(--ink);
}

.coordinate-demo small {
  display: block;
  margin-top: 1rem;
  color: var(--green);
  font: 0.7rem/1.4 var(--mono);
}

.giant-number {
  display: block;
  margin-bottom: 1.2rem;
  color: var(--orange);
  font: 700 clamp(3.4rem, 7vw, 7rem)/0.85 var(--mono);
  letter-spacing: -0.09em;
}

.coordinate-finding h3 {
  max-width: 16ch;
  margin-bottom: 1.2rem;
  color: var(--white);
  font: 400 clamp(2rem, 4vw, 4rem)/0.98 var(--serif);
  letter-spacing: -0.045em;
}

.coordinate-finding p {
  max-width: 42rem;
  color: var(--paper-2);
}

.coordinate-caution {
  display: grid;
  grid-template-columns: 12rem minmax(0, 1fr);
  gap: 2rem;
  max-width: 78rem;
  margin: 3rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line-dark);
}

.coordinate-caution strong {
  color: var(--green);
  font: 800 0.75rem/1.4 var(--mono);
  text-transform: uppercase;
}

.coordinate-caution p {
  max-width: 50rem;
  margin-bottom: 0;
  color: var(--mist);
}

.knowledge-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  max-width: 78rem;
  margin: 0 auto;
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  overflow: hidden;
}

.knowledge-grid article {
  padding: clamp(1.4rem, 3vw, 2.8rem);
}

.known-card {
  background: #d3ded6;
}

.unknown-card {
  border-left: 1px solid var(--line-light);
  background: #dfd0c5;
}

.knowledge-grid ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.knowledge-grid li {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  gap: 0.75rem;
  align-items: baseline;
  padding: 0.85rem 0;
  border-top: 1px solid rgb(21 24 21 / 18%);
}

.knowledge-grid li span {
  color: var(--green-dark);
  font: 700 0.7rem/1 var(--mono);
}

.unknown-card li span {
  color: var(--orange-dark);
}

.knowledge-grid li strong {
  font-size: 0.9rem;
}

.hours-callout {
  display: grid;
  grid-template-columns: 15rem minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: center;
  max-width: 78rem;
  margin: 2rem auto 0;
  padding: 2rem;
  border: 1px solid var(--orange);
  border-radius: var(--radius);
}

.hours-callout div span,
.hours-callout div strong {
  display: block;
}

.hours-callout div span {
  color: var(--orange-dark);
  font: 800 0.7rem/1 var(--mono);
  text-transform: uppercase;
}

.hours-callout div strong {
  font: 700 clamp(3rem, 6vw, 5.5rem)/0.95 var(--mono);
  letter-spacing: -0.09em;
}

.hours-callout p {
  max-width: 48rem;
  margin-bottom: 0;
}

.valcea-section {
  background: #cfdbd1;
}

.timeline {
  display: grid;
  grid-template-columns: 1fr minmax(8rem, 0.35fr) 1fr;
  align-items: center;
  max-width: 78rem;
  margin: 0 auto;
}

.timeline article {
  padding: clamp(1.4rem, 3vw, 2.6rem);
  border: 1px solid #7f9487;
  border-radius: var(--radius);
  background: rgb(232 224 210 / 55%);
}

.timeline time,
.timeline article strong,
.timeline article span,
.timeline article small {
  display: block;
}

.timeline time {
  color: var(--green-dark);
  font: 800 0.72rem/1 var(--mono);
  text-transform: uppercase;
}

.timeline article strong {
  margin: 1.2rem 0 0.6rem;
  font: 700 clamp(3.8rem, 7vw, 7rem)/0.85 var(--mono);
  letter-spacing: -0.09em;
}

.timeline article span {
  font-weight: 800;
}

.timeline article small {
  margin-top: 0.7rem;
  color: #526157;
}

.time-gap {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 8rem;
}

.time-gap::before,
.time-gap::after {
  position: absolute;
  top: 50%;
  width: 50%;
  height: 1px;
  background: var(--orange-dark);
  content: "";
}

.time-gap::before { left: 0; }
.time-gap::after { right: 0; }

.time-gap span {
  position: relative;
  z-index: 1;
  padding: 0.6rem;
  border: 1px solid var(--orange-dark);
  border-radius: 999px;
  background: #cfdbd1;
  color: var(--orange-dark);
  font: 800 0.7rem/1 var(--mono);
  text-align: center;
}

.defect-box {
  display: grid;
  grid-template-columns: 18rem minmax(0, 1fr);
  gap: 2rem;
  max-width: 78rem;
  margin: 2rem auto 0;
  padding: 1.5rem 0 0;
  border-top: 1px solid #7f9487;
}

.defect-box strong {
  font: 800 0.8rem/1.4 var(--mono);
  text-transform: uppercase;
}

.defect-box p {
  max-width: 52rem;
  margin-bottom: 0;
}

.quality-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  max-width: 78rem;
  margin: 0 auto;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  overflow: hidden;
}

.quality-grid article {
  padding: clamp(1.2rem, 3vw, 2.3rem);
  border-right: 1px solid var(--line-dark);
}

.quality-grid article:last-child {
  border-right: 0;
}

.quality-grid strong,
.quality-grid span {
  display: block;
}

.quality-grid strong {
  margin-bottom: 1rem;
  color: var(--orange);
  font: 700 clamp(2.7rem, 5vw, 5rem)/0.9 var(--mono);
  letter-spacing: -0.085em;
}

.quality-grid span {
  color: var(--paper-2);
  font-size: 0.8rem;
}

.duplicate-note {
  display: grid;
  grid-template-columns: 12rem minmax(0, 1fr);
  gap: 2rem;
  align-items: center;
  max-width: 78rem;
  margin: 2rem auto 0;
  padding: 1.6rem;
  border: 1px solid var(--orange);
  border-radius: var(--radius);
}

.duplicate-note > span {
  color: var(--orange);
  font: 700 clamp(3.2rem, 6vw, 6rem)/0.9 var(--mono);
  letter-spacing: -0.09em;
}

.duplicate-note p {
  margin-bottom: 0;
  color: var(--paper-2);
}

.recommendation {
  max-width: 78rem;
  margin: 4rem auto 0;
  padding: clamp(1.5rem, 4vw, 3.5rem);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
}

.recommendation h3 {
  max-width: 18ch;
  margin-bottom: 2rem;
  font: 400 clamp(2.2rem, 4vw, 4.5rem)/0.98 var(--serif);
  letter-spacing: -0.045em;
}

.recommendation ol {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  margin: 0;
  padding: 0;
  list-style: none;
}

.recommendation li {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--line-light);
  border-right: 0;
}

.recommendation li:last-child {
  border-right: 1px solid var(--line-light);
}

.recommendation li > span {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  margin-bottom: 2rem;
  border-radius: 50%;
  background: var(--orange);
  font: 800 0.75rem/1 var(--mono);
}

.recommendation li strong {
  font-size: 0.84rem;
}

.recommendation li p {
  margin: 0.5rem 0 0;
  color: #616761;
  font-size: 0.72rem;
}

.recommendation-boundary {
  margin-left: 0;
}

.method-list {
  max-width: 78rem;
  margin: 0 auto;
  padding: 0;
  border-top: 1px solid var(--line-light);
  list-style: none;
}

.method-list li {
  display: grid;
  grid-template-columns: 6rem minmax(0, 1fr);
  gap: 2rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--line-light);
}

.method-list li > span {
  color: var(--orange-dark);
  font: 800 0.8rem/1.5 var(--mono);
}

.method-list strong {
  display: block;
  margin-bottom: 0.2rem;
}

.method-list p {
  margin-bottom: 0;
  color: #5a605a;
}

code {
  font-family: var(--mono);
}

.downloads {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.8rem;
  max-width: 78rem;
  margin: 2.5rem auto 0;
}

.download-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 9rem;
  padding: 1.2rem;
  border: 1px solid var(--line-light);
  border-radius: 0.8rem;
  background: rgb(255 250 241 / 35%);
  text-decoration: none;
}

.download-card:hover {
  border-color: var(--orange-dark);
  background: var(--white);
  color: var(--ink);
}

.download-card span {
  color: #686d68;
  font: 0.68rem/1.4 var(--mono);
  text-transform: uppercase;
}

.download-card strong {
  font-size: 1rem;
}

.sources {
  max-width: 78rem;
  margin: 4rem auto 0;
}

.sources h3 {
  margin-bottom: 1.2rem;
  font: 400 2.3rem/1 var(--serif);
  letter-spacing: -0.04em;
}

.sources ul {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-light);
  list-style: none;
}

.sources li {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(16rem, 0.55fr);
  gap: 2rem;
  padding: 0.95rem 0;
  border-bottom: 1px solid var(--line-light);
}

.sources li span {
  color: #666c66;
  font-size: 0.75rem;
}

.closing-line {
  max-width: 24ch;
  margin: 5rem auto 0;
  color: var(--ink);
  font: 400 clamp(2.2rem, 4vw, 4.6rem)/1 var(--serif);
  letter-spacing: -0.045em;
  text-align: center;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 2.5rem clamp(1.2rem, 3vw, 3.5rem);
  border-top: 1px solid var(--line-dark);
  background: var(--ink);
}

.site-footer p {
  margin-bottom: 0;
  color: var(--mist);
  font-size: 0.78rem;
}

@media (max-width: 1120px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 55rem;
  }

  .door-figure {
    width: min(100%, 50rem);
    margin: 0 auto;
  }

  .recommendation ol {
    grid-template-columns: repeat(2, 1fr);
  }

  .recommendation li,
  .recommendation li:last-child {
    border: 1px solid var(--line-light);
  }
}

@media (max-width: 820px) {
  .site-nav a:not(:last-child) {
    display: none;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .section-heading h2 {
    max-width: 20ch;
  }

  .filter-proof {
    grid-template-columns: 1fr;
  }

  .filter-proof article,
  .filter-proof article:first-child,
  .filter-proof article:last-child {
    border-radius: 0.8rem;
  }

  .proof-arrow {
    width: 100%;
    height: 3rem;
    transform: rotate(90deg);
  }

  .status-ledger,
  .quality-grid {
    grid-template-columns: 1fr 1fr;
  }

  .status-ledger > div:nth-child(2),
  .quality-grid article:nth-child(2) {
    border-right: 0;
  }

  .status-ledger > div,
  .quality-grid article {
    border-bottom: 1px solid var(--line-light);
  }

  .status-ledger > div:nth-last-child(-n + 2),
  .quality-grid article:nth-last-child(-n + 2) {
    border-bottom: 0;
  }

  .results-head {
    grid-template-columns: 1fr;
  }

  .result-stats {
    flex-wrap: wrap;
  }

  .coordinate-case,
  .knowledge-grid,
  .timeline {
    grid-template-columns: 1fr;
  }

  .unknown-card {
    border-top: 1px solid var(--line-light);
    border-left: 0;
  }

  .time-gap {
    min-height: 5rem;
  }

  .time-gap::before,
  .time-gap::after {
    top: auto;
    left: 50%;
    width: 1px;
    height: 50%;
  }

  .time-gap::before { top: 0; }
  .time-gap::after { right: auto; bottom: 0; }

  .coordinate-caution,
  .defect-box,
  .hours-callout,
  .duplicate-note {
    grid-template-columns: 1fr;
  }

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

  .sources li {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 620px) {
  .site-shell {
    border-inline: 0;
  }

  .site-header {
    min-height: 4.25rem;
  }

  .hero {
    grid-template-columns: minmax(0, 1fr);
    width: 100%;
    min-height: auto;
    overflow: hidden;
    padding-top: 4rem;
  }

  .dek,
  .thesis,
  .safety-line {
    overflow-wrap: anywhere;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-actions .button {
    width: 100%;
    max-width: 100%;
    padding-inline: 0.8rem;
    text-align: center;
    white-space: normal;
  }

  h1 {
    font-size: clamp(4rem, 22vw, 6.2rem);
  }

  .door-control {
    grid-template-columns: 1fr;
  }

  .door-filter {
    min-height: 3.7rem;
  }

  .pressure-door {
    min-height: 22rem;
    border-radius: 38% 38% 0.8rem 0.8rem;
  }

  .door-ring {
    width: 55%;
  }

  .door-ring i {
    display: none;
  }

  .door-readout {
    width: 48%;
  }

  .content-section {
    padding-block: 4rem;
  }

  .search-row {
    grid-template-columns: 1fr;
  }

  .search-row .button {
    width: 100%;
  }

  .result-stats div {
    flex: 1 1 6rem;
  }

  .record-card {
    grid-template-columns: 3.4rem minmax(0, 1fr);
  }

  .record-tags {
    grid-column: 2;
    justify-content: flex-start;
  }

  .status-ledger,
  .quality-grid {
    grid-template-columns: 1fr;
  }

  .status-ledger > div,
  .status-ledger > div:nth-child(2),
  .quality-grid article,
  .quality-grid article:nth-child(2) {
    border-right: 0;
    border-bottom: 1px solid var(--line-light);
  }

  .status-ledger > div:last-child,
  .quality-grid article:last-child {
    border-bottom: 0;
  }

  .coordinate-demo strong {
    font-size: 1.8rem;
  }

  .hours-callout,
  .duplicate-note {
    padding: 1.25rem;
  }

  .recommendation ol {
    grid-template-columns: 1fr;
  }

  .method-list li {
    grid-template-columns: 3rem minmax(0, 1fr);
    gap: 0.8rem;
  }

  .site-footer nav {
    flex-wrap: wrap;
  }
}

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

@media print {
  :root {
    color-scheme: light;
  }

  body,
  .site-shell,
  .hero,
  .content-section,
  .coordinates-section,
  .quality-section {
    background: white;
    color: black;
  }

  .site-header,
  .toc,
  .hero-actions,
  .door-figure,
  .explorer-shell,
  .site-footer {
    display: none;
  }

  .hero {
    min-height: auto;
  }

  h1,
  .coordinate-finding h3,
  .coordinates-section .section-heading h2,
  .quality-section .section-heading h2 {
    color: black;
  }
}