:root {
  color-scheme: dark;
  --charcoal: #171715;
  --charcoal-raised: #211f1b;
  --ivory: #f2ecdf;
  --ivory-dim: #c9c0af;
  --gold: #b79a58;
  --gold-light: #d3bd82;
  --crimson: #9f393d;
  --line: #514b40;
  --focus: #f4cf71;
  --measure: 72rem;
  font-family: Georgia, "Times New Roman", serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

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

body {
  position: relative;
  margin: 0;
  min-width: 20rem;
  background:
    linear-gradient(90deg, transparent 49.8%, rgb(183 154 88 / 8%) 50%, transparent 50.2%),
    var(--charcoal);
  color: var(--ivory);
  line-height: 1.6;
}

body::before {
  position: fixed;
  z-index: 9;
  inset: 0 auto 0 0;
  width: 0.75rem;
  background: var(--crimson);
  content: "";
}

button,
input,
select,
textarea {
  font: inherit;
}

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

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible,
a:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  z-index: 10;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 1rem;
  transform: translateY(-180%);
  background: var(--ivory);
  color: var(--charcoal);
}

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

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--measure);
  margin: 0 auto;
  padding: 1.4rem 1.5rem;
  border-bottom: 1px solid var(--line);
}

.site-header p,
footer p {
  margin: 0;
  color: var(--ivory-dim);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.wordmark {
  color: var(--ivory);
  font-size: 0.94rem;
  letter-spacing: 0.05em;
  text-decoration: none;
  text-transform: uppercase;
}

.wordmark-mark {
  margin-right: 0.55rem;
  color: var(--gold);
}

main {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 1.5rem 5rem;
}

.hero {
  min-height: 40rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 18rem;
  gap: clamp(2rem, 6vw, 6rem);
  align-content: center;
  padding: 7rem 5vw 5rem;
  border-right: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.hero-copy-column {
  align-self: center;
}

.kicker,
.eyebrow,
.step {
  margin: 0 0 0.8rem;
  color: var(--gold-light);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

h1,
h2,
p {
  max-width: 45rem;
}

h1 {
  max-width: 50rem;
  margin: 0;
  font-size: clamp(3rem, 7vw, 6.4rem);
  font-weight: 700;
  letter-spacing: -0.055em;
  line-height: 0.95;
}

h1 em {
  color: var(--gold-light);
  font-weight: 400;
}

.hero-copy {
  margin: 2.4rem 0 0;
  color: var(--ivory-dim);
  font-size: clamp(1.08rem, 2vw, 1.35rem);
}

.plain-definition {
  color: var(--ivory-dim);
}

.hero-action {
  display: inline-flex;
  min-height: 3.8rem;
  align-items: center;
  margin-top: 1.2rem;
  padding: 0.8rem 1.25rem;
  background: var(--focus);
  color: var(--charcoal);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
}

.route-map {
  align-self: center;
  padding: 2rem;
  border: 1px solid var(--line);
}

.route-map ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.route-map li {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: 0.8rem;
  align-items: center;
  min-height: 4.5rem;
  border-top: 1px solid var(--line);
  color: var(--ivory-dim);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.route-map li span {
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  place-items: center;
  border: 1px solid var(--line);
}

.route-map li.is-current {
  color: var(--ivory);
}

.route-map li.is-current span {
  border-color: var(--crimson);
  background: var(--crimson);
}

.status-strip {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 2.2rem;
}

.status-strip span {
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--line);
  color: var(--ivory-dim);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.scenario-card,
.mode-card,
.result-panel,
.counter-reading-panel,
.custodian-card,
.boundary-note {
  margin: 5rem auto 0;
  padding: clamp(1.5rem, 5vw, 4rem);
  border: 1px solid var(--line);
  background: var(--charcoal-raised);
}

.mode-card {
  padding: 0;
}

.mode-card > summary {
  padding: 1.25rem 1.5rem;
  color: var(--gold-light);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.mode-card-body {
  padding: 0 clamp(1.5rem, 5vw, 4rem) clamp(1.5rem, 5vw, 4rem);
}

.scenario-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.step {
  color: var(--ivory-dim);
  font-weight: 400;
}

h2 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 4.25rem);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 1;
}

.situation,
.result-consequence {
  margin: 2rem 0 2.5rem;
  color: var(--ivory-dim);
  font-size: clamp(1.08rem, 2vw, 1.3rem);
}

fieldset {
  padding: 0;
  border: 0;
}

legend {
  margin-bottom: 1rem;
  font-size: 1.15rem;
  font-weight: 700;
}

.gate-list {
  display: grid;
  gap: 0.75rem;
}

.gate-option {
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: 0.9rem;
  align-items: center;
  min-height: 4.2rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  cursor: pointer;
}

.gate-option:hover {
  border-color: var(--gold);
}

.gate-option:has(input:checked) {
  border-color: var(--crimson);
  background: rgb(159 57 61 / 15%);
  box-shadow: inset 0.3rem 0 var(--crimson);
}

.gate-option input {
  width: 1.25rem;
  height: 1.25rem;
  accent-color: var(--crimson);
}

.gate-index {
  color: var(--gold-light);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.72rem;
}

.reason-label {
  display: block;
  margin-top: 2rem;
  font-weight: 700;
}

.reason-label span {
  color: var(--ivory-dim);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

textarea,
.mode-card select,
.counter-reading-panel select,
.key-row input {
  width: 100%;
  margin-top: 0.55rem;
  border: 1px solid var(--line);
  border-radius: 0;
  background: var(--charcoal);
  color: var(--ivory);
}

textarea {
  padding: 0.85rem;
  resize: vertical;
}

.mode-card select,
.counter-reading-panel select {
  display: block;
  width: 100%;
  min-height: 3rem;
  margin: 0.55rem 0 1rem;
  padding: 0.7rem;
  background: var(--charcoal);
  color: var(--ivory);
}

.gate-status,
#custodian-status {
  min-height: 1.8rem;
  margin: 1rem 0;
  color: var(--ivory-dim);
  font-size: 0.95rem;
}

.primary-button,
.secondary-button,
.seal-button,
.file-button,
.text-button {
  min-height: 2.8rem;
  padding: 0.65rem 1rem;
  border-radius: 0;
  cursor: pointer;
}

.primary-button,
.seal-button {
  border: 1px solid var(--gold);
  background: var(--gold);
  color: #15130f;
  font-weight: 700;
}

.primary-button:disabled {
  border-color: var(--line);
  background: transparent;
  color: #8e877a;
  cursor: not-allowed;
}

.secondary-button,
.file-button {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--gold);
  background: transparent;
  color: var(--ivory);
}

.text-button {
  border: 0;
  background: transparent;
  color: var(--gold-light);
  text-decoration: underline;
}

.result-panel {
  border-top: 0.45rem solid var(--crimson);
}

.result-panel[hidden] {
  display: none;
}

.counter-reading-panel {
  border-top: 0.45rem solid var(--gold);
}

.counter-reading-panel[hidden] {
  display: none;
}

.counter-reading-panel blockquote {
  margin: 1.5rem 0;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border-left: 0.5rem solid var(--crimson);
  background: var(--ivory);
  color: var(--charcoal);
  font-size: clamp(1.1rem, 2vw, 1.3rem);
}

.generator-provenance,
#counter-reading-status,
#response-validation {
  color: var(--ivory-dim);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.85rem;
}

.field-explanation,
.character-counter {
  margin: 0.55rem 0;
  color: var(--ivory-dim);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.85rem;
}

#model-progress-group {
  margin: 1rem 0;
}

#model-progress {
  display: block;
  width: 100%;
  margin-bottom: 0.5rem;
  accent-color: var(--gold);
}

.receipt-summary {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  margin-top: 2rem;
  padding: clamp(3rem, 7vw, 5.5rem);
  border: 1px solid var(--gold);
  background: #faf6ea;
  color: var(--charcoal);
}

.receipt-summary::before,
.receipt-summary::after {
  position: absolute;
  z-index: 0;
  pointer-events: none;
  content: "";
}

.receipt-summary > * {
  position: relative;
  z-index: 1;
}

.receipt-summary::before {
  inset: 1rem;
  border: 1px solid rgb(183 154 88 / 85%);
  box-shadow:
    inset 0 0 0 0.35rem #faf6ea,
    inset 0 0 0 0.42rem rgb(183 154 88 / 70%);
}

.receipt-summary::after {
  inset: 1.55rem;
  opacity: 0.52;
  background:
    radial-gradient(ellipse at 0 0, transparent 0 1.1rem, var(--crimson) 1.15rem 1.2rem, transparent 1.25rem 2rem, var(--gold) 2.05rem 2.1rem, transparent 2.15rem),
    radial-gradient(ellipse at 100% 0, transparent 0 1.1rem, var(--crimson) 1.15rem 1.2rem, transparent 1.25rem 2rem, var(--gold) 2.05rem 2.1rem, transparent 2.15rem),
    radial-gradient(ellipse at 0 100%, transparent 0 1.1rem, var(--crimson) 1.15rem 1.2rem, transparent 1.25rem 2rem, var(--gold) 2.05rem 2.1rem, transparent 2.15rem),
    radial-gradient(ellipse at 100% 100%, transparent 0 1.1rem, var(--crimson) 1.15rem 1.2rem, transparent 1.25rem 2rem, var(--gold) 2.05rem 2.1rem, transparent 2.15rem);
  background-repeat: no-repeat;
  background-size: 6rem 6rem;
}

.receipt-summary[hidden] {
  display: none;
}

.receipt-summary h3 {
  max-width: none;
  margin: 0;
  color: var(--charcoal);
  font-size: clamp(2rem, 5vw, 3.4rem);
  text-align: center;
}

.receipt-summary > .eyebrow,
.receipt-disclaimer,
.receipt-ornament-note {
  max-width: none;
  text-align: center;
}

.receipt-summary > .eyebrow {
  color: var(--crimson);
}

.receipt-disclaimer {
  margin: 0.65rem 0 2rem;
  color: var(--line);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.9rem;
}

.receipt-summary dl {
  margin: 0;
}

.receipt-summary dl div {
  display: grid;
  grid-template-columns: minmax(11rem, 0.8fr) minmax(0, 1.6fr);
  gap: 2rem;
  padding: 1rem 0;
  border-top: 1px solid rgb(183 154 88 / 65%);
}

.receipt-summary dt {
  color: var(--crimson);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.receipt-summary dd {
  margin: 0;
  color: var(--charcoal);
}

.receipt-ornament-note {
  margin: 1.5rem 0 0;
  color: var(--crimson);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.next-action {
  margin: 1.6rem 0;
  padding: 1rem;
  border-left: 0.25rem solid var(--gold);
  background: rgb(183 154 88 / 8%);
}

.non-judgement {
  color: var(--ivory-dim);
  font-style: italic;
}

details {
  margin-top: 2rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 1rem 0;
}

summary {
  cursor: pointer;
  font-weight: 700;
}

pre {
  max-height: 26rem;
  overflow: auto;
  padding: 1rem;
  background: #100f0e;
  color: #ded6c8;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.78rem;
  line-height: 1.5;
  white-space: pre-wrap;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}

.model-upgrade {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: center;
  margin-top: 2rem;
  padding: 1.5rem;
  border: 1px solid var(--gold);
}

.model-upgrade[hidden] {
  display: none;
}

.model-upgrade h3 {
  margin: 0;
  font-size: clamp(1.4rem, 3vw, 2rem);
}

.model-upgrade p:last-child {
  margin-bottom: 0;
  color: var(--ivory-dim);
}

.replay-output:empty {
  display: none;
}

.custodian-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 6vw, 5rem);
  border-color: var(--gold);
}

.custodian-card form {
  align-self: center;
}

.key-row {
  display: grid;
  grid-template-columns: 1fr auto;
}

.key-row input {
  min-height: 3rem;
  margin: 0;
  padding: 0.7rem;
  border-right: 0;
}

.boundary-note {
  border: 0;
  border-left: 1px solid var(--gold);
  background: transparent;
}

.boundary-note p:last-child {
  color: var(--ivory-dim);
  font-size: 1.1rem;
}

footer {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  border-top: 1px solid var(--line);
}

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

@media (max-width: 48rem) {
  .site-header {
    align-items: flex-start;
  }

  .site-header p {
    display: none;
  }

  .hero {
    min-height: 31rem;
    grid-template-columns: 1fr;
    padding: 5rem 1.25rem 3.5rem;
  }

  .route-map {
    display: none;
  }

  .scenario-heading,
  .custodian-card {
    display: block;
  }

  .scenario-heading .step {
    margin-top: 0.5rem;
  }

  .custodian-card form {
    margin-top: 2.5rem;
  }

  .receipt-summary dl div,
  .model-upgrade {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }

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

  .key-row input {
    border-right: 1px solid var(--line);
  }
}

@media (max-width: 30rem) {
  main {
    padding-right: 0.85rem;
    padding-left: 0.85rem;
  }

  .hero {
    border: 0;
  }

  h1 {
    font-size: clamp(2.8rem, 15vw, 4.3rem);
  }

  .gate-option {
    grid-template-columns: auto 1fr;
  }

  .gate-index {
    display: none;
  }

  .primary-button,
  .secondary-button,
  .file-button,
  .text-button {
    width: 100%;
    justify-content: center;
  }
}

@media (forced-colors: active) {
  body::before {
    background: CanvasText;
  }

  .receipt-summary {
    border: 2px solid CanvasText;
    background: Canvas;
    color: CanvasText;
    forced-color-adjust: auto;
  }

  .receipt-summary::before,
  .receipt-summary::after {
    display: none;
  }

  .receipt-summary h3,
  .receipt-summary dd,
  .receipt-summary dt,
  .receipt-summary > .eyebrow,
  .receipt-disclaimer,
  .receipt-ornament-note {
    color: CanvasText;
  }

  .gate-option:has(input:checked) {
    border-width: 3px;
    box-shadow: none;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}