:root {
  color-scheme: dark;
  --ink: #0b0a0a;
  --paper: #e9e2d7;
  --muted: #9d968d;
  --line: rgba(233, 226, 215, 0.18);
  --ember: #8f1f24;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--ink);
}

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  color: var(--paper);
  background:
    radial-gradient(circle at 78% 44%, rgba(143, 31, 36, 0.08), transparent 30%),
    radial-gradient(circle at 12% 10%, rgba(255, 255, 255, 0.04), transparent 34%),
    linear-gradient(135deg, #0a0909 0%, #111010 55%, #080707 100%);
  font-family: Georgia, "Times New Roman", serif;
}

button,
input {
  font: inherit;
}

.grain {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.22;
  background-image:
    repeating-linear-gradient(0deg, transparent 0, transparent 2px, rgba(255,255,255,.018) 3px),
    repeating-linear-gradient(90deg, transparent 0, transparent 3px, rgba(255,255,255,.012) 4px);
  mix-blend-mode: soft-light;
}

.shell {
  position: relative;
  z-index: 1;
  width: min(1180px, calc(100% - 48px));
  min-height: 100vh;
  margin: 0 auto;
  display: grid;
  grid-template-rows: auto auto 1fr auto;
}

.masthead,
footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 0;
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 10px;
  letter-spacing: 0.24em;
}

.masthead {
  border-bottom: 1px solid var(--line);
}

.thresholds {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 10px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.threshold {
  display: grid;
  place-items: center;
  height: 24px;
  color: #5b5651;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 9px;
  letter-spacing: 0.08em;
  border-bottom: 1px solid #292626;
}

.threshold.active {
  color: var(--paper);
  border-color: var(--ember);
}

.threshold.completed {
  color: #aaa39a;
  border-color: #5f1c20;
}

.entrance {
  display: grid;
  grid-template-columns: minmax(260px, .8fr) minmax(460px, 1.2fr);
  align-items: center;
  gap: clamp(42px, 8vw, 120px);
  padding: clamp(46px, 8vh, 96px) 0;
}

.entrance[hidden] {
  display: none;
}

.door {
  position: relative;
  width: min(320px, 72vw);
  aspect-ratio: 0.61;
  margin: 0 auto;
  border: 1px solid rgba(233, 226, 215, 0.28);
  box-shadow:
    0 0 0 14px #0b0a0a,
    0 0 0 15px rgba(233, 226, 215, 0.08),
    0 32px 90px rgba(0, 0, 0, 0.8);
  background:
    linear-gradient(90deg, transparent 49.7%, rgba(233,226,215,.06) 50%, transparent 50.3%),
    linear-gradient(180deg, #100f0f, #050505);
}

.door::before {
  content: "";
  position: absolute;
  inset: 18px;
  border: 1px solid rgba(233, 226, 215, 0.08);
}

.door::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -58px;
  width: 170%;
  height: 90px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse, rgba(143,31,36,.16), transparent 65%);
  filter: blur(10px);
}

.door-line {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: linear-gradient(transparent 5%, rgba(233,226,215,.16), transparent 95%);
}

.door-mark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: rgba(233, 226, 215, 0.72);
  font-size: clamp(54px, 8vw, 92px);
  font-weight: 400;
  text-shadow: 0 0 34px rgba(233,226,215,.12);
}

.content {
  max-width: 650px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--ember);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.34em;
}

h1 {
  margin: 0;
  font-size: clamp(54px, 7.4vw, 104px);
  font-weight: 400;
  line-height: 0.82;
  letter-spacing: -0.065em;
}

.declaration {
  margin: 28px 0 0;
  color: #c9c1b6;
  font-size: clamp(20px, 2.2vw, 30px);
  font-style: italic;
  line-height: 1.22;
}

.rule {
  width: 72px;
  height: 1px;
  margin: 30px 0;
  background: var(--ember);
}

.invitation {
  max-width: 590px;
  margin: 0;
  color: #b4ada4;
  font-size: clamp(15px, 1.5vw, 18px);
  line-height: 1.75;
}

.identity {
  margin-top: 34px;
}

.identity label {
  display: block;
  margin-bottom: 12px;
  color: var(--paper);
  font-size: 15px;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr auto;
  border-bottom: 1px solid rgba(233, 226, 215, 0.38);
}

input {
  min-width: 0;
  padding: 14px 2px;
  color: var(--paper);
  background: transparent;
  border: 0;
  outline: 0;
  font-size: 20px;
}

input::placeholder {
  color: #5c5752;
}

.field-row:focus-within {
  border-color: var(--ember);
}

button {
  cursor: pointer;
}

.field-row button,
.sealed,
.gate-action {
  padding: 0 22px;
  color: var(--paper);
  background: transparent;
  border: 1px solid rgba(233, 226, 215, 0.28);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.18em;
  transition: border-color .2s ease, background .2s ease;
}

.field-row button:hover,
.field-row button:focus-visible {
  border-color: var(--ember);
  background: rgba(143, 31, 36, 0.12);
}

.field-row button:disabled {
  cursor: wait;
  color: #77716b;
  border-color: #282525;
}

.privacy-note,
.form-error {
  margin: 10px 0 0;
  color: #6f6963;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 10px;
  line-height: 1.5;
}

.form-error {
  min-height: 15px;
  color: #d18383;
}

.recognition {
  margin-top: 34px;
  padding: 24px 0 0;
  border-top: 1px solid var(--line);
  font-size: 20px;
}

.recognition p {
  margin: 0 0 8px;
}

.recognition .whisper {
  color: #8c857e;
  font-size: 15px;
  font-style: italic;
}

.recovery {
  display: grid;
  gap: 8px;
  margin-top: 22px;
  padding: 18px 20px;
  border: 1px solid rgba(233, 226, 215, 0.14);
  background: rgba(255, 255, 255, 0.015);
}

.recovery[hidden] {
  display: none;
}

.recovery span,
.recovery small {
  color: #77716b;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 9px;
  letter-spacing: 0.16em;
  line-height: 1.6;
}

.recovery strong {
  color: #c9c1b6;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 17px;
  letter-spacing: 0.22em;
}

.recovery small {
  letter-spacing: 0.04em;
}

.sealed {
  display: block;
  width: 100%;
  margin-top: 22px;
  padding: 16px 22px;
}

.sealed:hover,
.sealed:focus-visible,
.gate-action:hover,
.gate-action:focus-visible {
  border-color: var(--ember);
  background: rgba(143, 31, 36, 0.12);
}

.sealed:disabled,
.gate-action:disabled {
  cursor: not-allowed;
  color: #77716b;
  border-color: #282525;
  background: transparent;
}

.text-button {
  margin-top: 16px;
  padding: 0;
  color: #79726b;
  background: none;
  border: 0;
  border-bottom: 1px solid #3d3936;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 10px;
  letter-spacing: 0.12em;
}

.gate-stage {
  display: grid;
  grid-template-columns: minmax(260px, .7fr) minmax(460px, 1.3fr);
  align-items: center;
  gap: clamp(42px, 8vw, 120px);
  min-height: 650px;
  padding: clamp(46px, 8vh, 90px) 0;
}

.gate-stage[hidden] {
  display: none;
}

.gate-intro {
  position: relative;
  padding: 36px 0;
}

.gate-number {
  position: absolute;
  top: -40px;
  left: -18px;
  z-index: -1;
  color: rgba(233, 226, 215, 0.035);
  font-size: clamp(180px, 25vw, 330px);
  line-height: 1;
}

.gate-intro h2 {
  margin: 0;
  color: var(--paper);
  font-size: clamp(38px, 5vw, 68px);
  font-weight: 400;
  line-height: .92;
  letter-spacing: -.045em;
}

.gate-intro > p:not(.eyebrow) {
  margin: 34px 0 0;
  color: #aaa39a;
  font-size: 16px;
  line-height: 1.75;
}

.gate-intro small {
  display: block;
  margin-top: 24px;
  color: #69635e;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 9px;
  letter-spacing: .12em;
  line-height: 1.6;
  text-transform: uppercase;
}

.challenge-card {
  position: relative;
  min-height: 470px;
  padding: clamp(28px, 5vw, 52px);
  border: 1px solid rgba(233, 226, 215, 0.14);
  background:
    linear-gradient(135deg, rgba(255,255,255,.022), transparent 45%),
    rgba(5, 5, 5, .52);
  box-shadow: 0 30px 90px rgba(0, 0, 0, .35);
}

.challenge-progress {
  margin: 0 0 28px;
  color: var(--ember);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .28em;
}

.dossier {
  margin: 0 0 30px;
  padding: 20px;
  border: 1px solid rgba(233, 226, 215, 0.12);
  background:
    linear-gradient(145deg, rgba(143, 31, 36, 0.07), transparent 42%),
    rgba(255, 255, 255, 0.012);
}

.dossier[hidden] {
  display: none;
}

.dossier-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.dossier-heading > p {
  margin: 0 0 10px;
  color: #706963;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: .28em;
}

.memory-countdown {
  display: flex;
  align-items: baseline;
  gap: 9px;
  color: #8f8981;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 7px;
  letter-spacing: .16em;
  white-space: nowrap;
}

.memory-countdown[hidden] {
  display: none;
}

.memory-countdown b {
  min-width: 20px;
  color: var(--ember);
  font-size: 16px;
  font-weight: 400;
  letter-spacing: 0;
  text-align: right;
}

.challenge-card .dossier h3 {
  margin: 0 0 8px;
  color: #c8c0b6;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .16em;
  line-height: 1.4;
}

.dossier-brief {
  color: #938c84;
  font-size: 14px;
  font-style: italic;
  line-height: 1.55;
}

.dossier-evidence {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: reperto;
}

.dossier-evidence li {
  position: relative;
  min-height: 66px;
  padding: 12px 12px 12px 40px;
  color: #aaa39a;
  border: 1px solid rgba(233, 226, 215, 0.08);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 11px;
  line-height: 1.45;
  counter-increment: reperto;
}

.dossier-evidence li::before {
  content: counter(reperto, decimal-leading-zero);
  position: absolute;
  top: 13px;
  left: 12px;
  color: var(--ember);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: .08em;
}

.relation-geometry {
  margin: 0 0 30px;
  padding: 22px;
  border: 1px solid rgba(233, 226, 215, 0.12);
  background:
    radial-gradient(circle at 50% 42%, rgba(143, 31, 36, 0.075), transparent 54%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.018), transparent 48%),
    rgba(3, 3, 3, 0.48);
}

.relation-geometry[hidden] {
  display: none;
}

.geometry-heading {
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(233, 226, 215, 0.09);
}

.geometry-mode {
  margin: 0 0 10px;
  color: var(--ember);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: .3em;
}

.challenge-card .geometry-heading h3 {
  margin: 0 0 8px;
  color: #c8c0b6;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .16em;
  line-height: 1.4;
}

.geometry-brief {
  margin: 0;
  color: #938c84;
  font-size: 14px;
  font-style: italic;
  line-height: 1.55;
}

.geometry-instruction {
  display: block;
  margin-top: 13px;
  color: #66605a;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 9px;
  letter-spacing: .08em;
  line-height: 1.55;
  text-transform: uppercase;
}

.geometry-panels {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.geometry-panel {
  min-width: 0;
  margin: 0;
  padding: 12px;
  border: 1px solid rgba(233, 226, 215, 0.08);
  background: rgba(0, 0, 0, 0.26);
}

.geometry-panel figcaption {
  color: #716a64;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: .25em;
}

.geometry-svg {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 4px;
  overflow: visible;
}

.geometry-svg marker path {
  fill: var(--ember);
}

.geometry-edge {
  fill: none;
  stroke: rgba(143, 31, 36, 0.78);
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
}

.geometry-node rect {
  fill: #090909;
  stroke: rgba(233, 226, 215, 0.28);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.geometry-node text {
  fill: #c8c0b6;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 17px;
  letter-spacing: .03em;
}

.consequence-ledger {
  margin: 0 0 30px;
  padding: 22px;
  border: 1px solid rgba(233, 226, 215, 0.12);
  background:
    linear-gradient(145deg, rgba(143, 31, 36, 0.085), transparent 40%),
    repeating-linear-gradient(0deg, transparent 0 35px, rgba(233, 226, 215, 0.018) 35px 36px),
    rgba(3, 3, 3, 0.5);
}

.consequence-ledger[hidden] {
  display: none;
}

.consequence-heading {
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(233, 226, 215, 0.09);
}

.consequence-family {
  margin: 0 0 10px;
  color: var(--ember);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: .3em;
}

.challenge-card .consequence-heading h3 {
  margin: 0 0 8px;
  color: #c8c0b6;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .16em;
  line-height: 1.4;
}

.consequence-brief {
  margin: 0;
  color: #938c84;
  font-size: 14px;
  font-style: italic;
  line-height: 1.55;
}

.consequence-instruction {
  display: block;
  margin-top: 13px;
  color: #777069;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 11px;
  letter-spacing: .07em;
  line-height: 1.6;
  text-transform: uppercase;
}

.consequence-grid {
  display: grid;
  grid-template-columns: minmax(180px, .72fr) minmax(0, 1.28fr);
  gap: 12px;
  margin-top: 18px;
}

.consequence-block,
.consequence-objective {
  padding: 14px;
  border: 1px solid rgba(233, 226, 215, 0.08);
  background: rgba(0, 0, 0, 0.24);
}

.consequence-block h4,
.consequence-objective h4 {
  margin: 0 0 12px;
  color: #716a64;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: .23em;
}

.consequence-initial {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
}

.consequence-initial div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-width: 0;
  padding: 9px 10px;
  border-left: 1px solid rgba(143, 31, 36, 0.7);
  background: rgba(255, 255, 255, 0.018);
}

.consequence-initial dt,
.consequence-initial dd {
  margin: 0;
}

.consequence-initial dt {
  overflow: hidden;
  color: #8f8880;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 9px;
  text-overflow: ellipsis;
}

.consequence-initial dd {
  color: #d0c8bd;
  font-size: 18px;
}

.consequence-laws {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: clause;
}

.consequence-laws li {
  position: relative;
  min-height: 28px;
  padding-left: 32px;
  color: #9b948c;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 10px;
  line-height: 1.45;
  counter-increment: clause;
}

.consequence-laws li::before {
  content: counter(clause, decimal-leading-zero);
  position: absolute;
  top: 1px;
  left: 0;
  color: var(--ember);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: .08em;
}

.consequence-objective {
  margin-top: 12px;
  border-color: rgba(143, 31, 36, 0.28);
}

.consequence-objective ul {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.consequence-objective li {
  padding: 9px 10px;
  color: #b4aca2;
  border: 1px solid rgba(233, 226, 215, 0.07);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 9px;
  line-height: 1.45;
}

.consequence-warning {
  margin: 13px 0 0;
  color: #68615b;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 8px;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.interpretation-dossier {
  margin: 0 0 30px;
  padding: 22px;
  border: 1px solid rgba(233, 226, 215, 0.12);
  background:
    linear-gradient(145deg, rgba(143, 31, 36, 0.075), transparent 42%),
    repeating-linear-gradient(90deg, transparent 0 47px, rgba(233, 226, 215, 0.014) 47px 48px),
    rgba(3, 3, 3, 0.5);
}

.interpretation-dossier[hidden] {
  display: none;
}

.interpretation-heading {
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(233, 226, 215, 0.09);
}

.interpretation-family {
  margin: 0 0 10px;
  color: var(--ember);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: .3em;
}

.challenge-card .interpretation-heading h3 {
  margin: 0 0 8px;
  color: #c8c0b6;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .16em;
  line-height: 1.4;
}

.interpretation-brief {
  margin: 0;
  color: #938c84;
  font-size: 14px;
  font-style: italic;
  line-height: 1.55;
}

.interpretation-statement {
  position: relative;
  margin: 18px 0 12px;
  padding: 34px 20px 20px;
  color: #d2cabf;
  border: 1px solid rgba(143, 31, 36, 0.28);
  background: rgba(0, 0, 0, 0.28);
  font-size: clamp(17px, 2vw, 23px);
  font-style: normal;
  line-height: 1.48;
}

.interpretation-statement::before {
  content: "ENUNCIATO DEPOSITATO";
  position: absolute;
  top: 12px;
  left: 20px;
  color: #716a64;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: .23em;
}

.interpretation-protocol {
  padding: 14px;
  border: 1px solid rgba(233, 226, 215, 0.08);
  background: rgba(0, 0, 0, 0.24);
}

.interpretation-protocol h4 {
  margin: 0 0 12px;
  color: #716a64;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: .23em;
}

.interpretation-protocol ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.interpretation-protocol li {
  padding: 10px;
  color: #918a82;
  border-left: 1px solid rgba(143, 31, 36, 0.62);
  background: rgba(255, 255, 255, 0.012);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 11px;
  line-height: 1.5;
}

.interpretation-warning {
  margin: 13px 0 0;
  color: #68615b;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 8px;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.chronology-dossier {
  margin: 0 0 30px;
  padding: 22px;
  border: 1px solid rgba(233, 226, 215, 0.12);
  background:
    linear-gradient(145deg, rgba(143, 31, 36, 0.08), transparent 44%),
    repeating-linear-gradient(90deg, transparent 0 47px, rgba(233, 226, 215, 0.014) 47px 48px),
    rgba(3, 3, 3, 0.5);
}

.chronology-dossier[hidden] {
  display: none;
}

.chronology-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 22px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(233, 226, 215, 0.09);
}

.chronology-heading > div:first-child {
  min-width: 0;
}

.chronology-family {
  margin: 0 0 10px;
  color: var(--ember);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .28em;
}

.challenge-card .chronology-heading h3 {
  margin: 0 0 8px;
  color: #c8c0b6;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .15em;
  line-height: 1.4;
}

.chronology-brief {
  margin: 0;
  color: #938c84;
  font-size: 14px;
  font-style: italic;
  line-height: 1.55;
}

.chronology-clock {
  flex: 0 0 174px;
  padding: 12px 14px;
  border: 1px solid rgba(233, 226, 215, 0.14);
  background: rgba(0, 0, 0, 0.34);
  font-family: Arial, Helvetica, sans-serif;
  text-align: right;
}

.chronology-clock[hidden] {
  display: none;
}

.chronology-clock span,
.chronology-clock small {
  display: block;
}

.chronology-clock span {
  color: #716a64;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: .2em;
}

.chronology-clock strong {
  display: block;
  margin: 6px 0 5px;
  color: #d6cec3;
  font-size: 24px;
  font-weight: 400;
  letter-spacing: .08em;
}

.chronology-clock small {
  color: #77716b;
  font-size: 10px;
  line-height: 1.35;
}

.chronology-clock.grace {
  border-color: rgba(143, 31, 36, 0.58);
  box-shadow: inset 0 0 24px rgba(143, 31, 36, 0.08);
}

.chronology-clock.grace strong,
.chronology-clock.expired strong {
  color: #a62b30;
}

.chronology-clock.expired {
  border-color: rgba(143, 31, 36, 0.34);
  opacity: .82;
}

.chronology-grid {
  display: grid;
  grid-template-columns: minmax(180px, .72fr) minmax(0, 1.28fr);
  gap: 12px;
  margin: 16px 0 12px;
}

.chronology-block,
.chronology-protocol {
  padding: 14px;
  border: 1px solid rgba(233, 226, 215, 0.08);
  background: rgba(0, 0, 0, 0.24);
}

.chronology-block h4,
.chronology-protocol h4 {
  margin: 0 0 12px;
  color: #716a64;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .21em;
}

.chronology-clocks,
.chronology-records,
.chronology-protocol ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.chronology-clocks {
  display: grid;
  gap: 8px;
}

.chronology-clocks div {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-left: 1px solid rgba(143, 31, 36, 0.62);
  background: rgba(255, 255, 255, 0.012);
  font-family: Arial, Helvetica, sans-serif;
}

.chronology-clocks dt,
.chronology-clocks dd {
  margin: 0;
}

.chronology-clocks dt {
  color: #8d867f;
  font-size: 12px;
}

.chronology-clocks dd {
  color: #c4bbb1;
  font-size: 13px;
  letter-spacing: .04em;
}

.chronology-records {
  display: grid;
  gap: 8px;
  counter-reset: chronology-record;
}

.chronology-records li {
  position: relative;
  display: grid;
  grid-template-columns: minmax(80px, .55fr) minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  padding: 9px 10px 9px 32px;
  border: 1px solid rgba(233, 226, 215, 0.065);
  color: #a79f96;
  font-family: Arial, Helvetica, sans-serif;
  counter-increment: chronology-record;
}

.chronology-records li::before {
  content: counter(chronology-record, decimal-leading-zero);
  position: absolute;
  left: 10px;
  color: rgba(166, 43, 48, .82);
  font-size: 8px;
  font-weight: 700;
}

.chronology-records span {
  color: #77716b;
  font-size: 10px;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.chronology-records strong,
.chronology-records time,
.chronology-records p {
  margin: 0;
  color: #b7afa6;
  font-size: 13px;
  font-weight: 400;
  line-height: 1.45;
}

.chronology-records time {
  color: #d0c7bc;
  font-variant-numeric: tabular-nums;
  letter-spacing: .06em;
}

.chronology-records p {
  grid-column: 2 / -1;
}

.chronology-protocol ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.chronology-protocol li {
  padding: 10px;
  color: #918a82;
  border-left: 1px solid rgba(143, 31, 36, 0.62);
  background: rgba(255, 255, 255, 0.012);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 11px;
  line-height: 1.5;
}

.interpretation-protocol li.worked-example,
.chronology-protocol li.worked-example {
  color: #c8c0b6;
  border: 1px solid rgba(143, 31, 36, 0.68);
  background: rgba(143, 31, 36, 0.075);
}

.chronology-warning {
  margin: 13px 0 0;
  color: #68615b;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 9px;
  letter-spacing: .12em;
  line-height: 1.5;
  text-transform: uppercase;
}

.coherence-dossier {
  margin: 0 0 30px;
  padding: 22px;
  border: 1px solid rgba(233, 226, 215, 0.12);
  background:
    linear-gradient(145deg, rgba(143, 31, 36, 0.1), transparent 46%),
    repeating-linear-gradient(90deg, transparent 0 47px, rgba(233, 226, 215, 0.014) 47px 48px),
    rgba(3, 3, 3, 0.5);
}

.coherence-dossier[hidden] {
  display: none;
}

.coherence-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 22px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(233, 226, 215, 0.09);
}

.coherence-heading > div:first-child {
  min-width: 0;
}

.coherence-family {
  margin: 0 0 10px;
  color: var(--ember);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .28em;
}

.challenge-card .coherence-heading h3 {
  margin: 0 0 8px;
  color: #c8c0b6;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .15em;
  line-height: 1.4;
}

.coherence-brief {
  margin: 0;
  color: #938c84;
  font-size: 14px;
  font-style: italic;
  line-height: 1.55;
}

.coherence-register,
.coherence-protocol {
  margin-top: 14px;
  padding: 14px;
  border: 1px solid rgba(233, 226, 215, 0.08);
  background: rgba(0, 0, 0, 0.24);
}

.coherence-register h4,
.coherence-protocol h4 {
  margin: 0 0 12px;
  color: #716a64;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .21em;
}

.coherence-witnesses {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 9px;
}

.coherence-witness {
  min-width: 0;
  padding: 12px;
  border-left: 1px solid rgba(143, 31, 36, 0.66);
  background: rgba(255, 255, 255, 0.014);
}

.coherence-witness-gate,
.coherence-witness strong {
  display: block;
  font-family: Arial, Helvetica, sans-serif;
}

.coherence-witness-gate {
  margin-bottom: 5px;
  color: #8f1f24;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: .18em;
}

.coherence-witness strong {
  min-height: 30px;
  color: #8f8880;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .1em;
  line-height: 1.45;
}

.coherence-seals {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin-top: 11px;
}

.coherence-seals span {
  display: grid;
  place-items: center;
  min-height: 34px;
  color: #bdb5ac;
  border: 1px solid rgba(233, 226, 215, 0.12);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 12px;
  letter-spacing: .06em;
}

.coherence-seals span.focus {
  color: var(--paper);
  border-color: rgba(166, 43, 48, 0.9);
  background: rgba(143, 31, 36, 0.18);
  box-shadow: inset 0 0 18px rgba(143, 31, 36, 0.08);
}

.coherence-protocol ul {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.coherence-protocol li {
  padding: 10px;
  color: #918a82;
  border-left: 1px solid rgba(143, 31, 36, 0.62);
  background: rgba(255, 255, 255, 0.012);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 11px;
  line-height: 1.5;
}

.coherence-warning {
  margin: 13px 0 0;
  color: #68615b;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 9px;
  letter-spacing: .12em;
  line-height: 1.5;
  text-transform: uppercase;
}

.synthesis-dossier {
  margin: 0 0 30px;
  padding: 22px;
  border: 1px solid rgba(233, 226, 215, 0.15);
  background:
    radial-gradient(circle at 84% 14%, rgba(143, 31, 36, 0.13), transparent 32%),
    linear-gradient(145deg, rgba(143, 31, 36, 0.09), transparent 48%),
    repeating-linear-gradient(90deg, transparent 0 47px, rgba(233, 226, 215, 0.014) 47px 48px),
    rgba(3, 3, 3, 0.58);
  box-shadow: inset 0 0 46px rgba(0, 0, 0, 0.38);
}

.synthesis-dossier[hidden] {
  display: none;
}

.synthesis-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 22px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(233, 226, 215, 0.1);
}

.synthesis-heading > div:first-child {
  min-width: 0;
}

.synthesis-family {
  margin: 0 0 10px;
  color: #aa292f;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .3em;
}

.challenge-card .synthesis-heading h3 {
  margin: 0 0 8px;
  color: #d1c9be;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .16em;
  line-height: 1.4;
}

.synthesis-brief {
  margin: 0;
  color: #9b938a;
  font-size: 14px;
  font-style: italic;
  line-height: 1.58;
}

.synthesis-fragments {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 9px;
  margin-top: 16px;
}

.synthesis-fragment {
  min-width: 0;
  padding: 13px 14px;
  border: 1px solid rgba(233, 226, 215, 0.075);
  border-left-color: rgba(166, 43, 48, 0.72);
  background: rgba(255, 255, 255, 0.014);
}

.synthesis-fragment span {
  display: block;
  margin-bottom: 7px;
  color: #922329;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: .2em;
}

.synthesis-fragment p {
  margin: 0;
  color: #aaa299;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 12px;
  line-height: 1.55;
}

.synthesis-protocol {
  margin-top: 12px;
  padding: 14px;
  border: 1px solid rgba(233, 226, 215, 0.08);
  background: rgba(0, 0, 0, 0.25);
}

.synthesis-protocol h4 {
  margin: 0 0 12px;
  color: #716a64;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .21em;
}

.synthesis-protocol ol {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: synthesis-rule;
}

.synthesis-protocol li {
  position: relative;
  padding: 11px 10px 11px 30px;
  color: #918a82;
  border-left: 1px solid rgba(143, 31, 36, 0.62);
  background: rgba(255, 255, 255, 0.012);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 11px;
  line-height: 1.5;
  counter-increment: synthesis-rule;
}

.synthesis-protocol li::before {
  content: counter(synthesis-rule, decimal-leading-zero);
  position: absolute;
  top: 12px;
  left: 10px;
  color: #842026;
  font-size: 8px;
  font-weight: 700;
}

.synthesis-warning {
  margin: 13px 0 0;
  color: #6f6861;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 9px;
  letter-spacing: .12em;
  line-height: 1.55;
  text-transform: uppercase;
}

.memory-seal {
  min-height: 340px;
  padding: 34px;
  border: 1px solid rgba(233, 226, 215, 0.12);
  background:
    linear-gradient(145deg, rgba(143, 31, 36, 0.08), transparent 44%),
    rgba(255, 255, 255, 0.012);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.memory-seal[hidden],
.memory-void[hidden],
#question-panel[hidden] {
  display: none;
}

#challenge.awaiting-timer #chronology-dossier .chronology-grid,
#challenge.awaiting-timer #gate-dossier .dossier-evidence,
#challenge.awaiting-timer #synthesis-dossier .synthesis-fragments {
  display: none;
}

.memory-seal > p:first-child,
.memory-void span {
  margin: 0 0 18px;
  color: var(--ember);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .28em;
}

.challenge-card .memory-seal h3 {
  margin-bottom: 18px;
}

.memory-seal > p:not(:first-child) {
  max-width: 600px;
  margin: 0 0 24px;
  color: #938c84;
  font-size: 15px;
  font-style: italic;
  line-height: 1.65;
}

.memory-void {
  margin: 0 0 28px;
  padding: 18px 20px;
  border-left: 1px solid var(--ember);
  background: rgba(143, 31, 36, 0.035);
}

.memory-void span {
  display: block;
  margin-bottom: 7px;
  font-size: 8px;
}

.memory-void p {
  margin: 0;
  color: #77716b;
  font-size: 13px;
  font-style: italic;
}

.challenge-card h3 {
  max-width: 680px;
  margin: 0 0 30px;
  color: #d7d0c6;
  font-size: clamp(22px, 2.7vw, 34px);
  font-weight: 400;
  line-height: 1.35;
}

.gate-options {
  display: grid;
  gap: 10px;
}

.option {
  display: grid;
  grid-template-columns: 34px 1fr;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 13px 16px;
  color: #aaa39a;
  text-align: left;
  background: transparent;
  border: 1px solid rgba(233, 226, 215, 0.12);
  font-size: 14px;
  line-height: 1.45;
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}

.option > span:first-child {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  color: #6f6963;
  border: 1px solid #34302d;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 9px;
}

.option:hover,
.option:focus-visible,
.option.selected {
  color: var(--paper);
  border-color: rgba(143, 31, 36, .8);
  background: rgba(143, 31, 36, .08);
}

.option.selected > span:first-child {
  color: var(--paper);
  border-color: var(--ember);
  background: var(--ember);
}

.consequence-option-copy {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.consequence-option-copy strong {
  color: inherit;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 11px;
  letter-spacing: .12em;
}

.consequence-option-copy small {
  color: #777069;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 9px;
  letter-spacing: .04em;
}

.option.selected .consequence-option-copy small {
  color: #aaa29a;
}

.interpretation-option-copy {
  min-width: 0;
  color: inherit;
  font-size: 13px;
  line-height: 1.55;
}

.coherence-option-copy {
  min-width: 0;
  color: inherit;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 12px;
  letter-spacing: .025em;
  line-height: 1.55;
}

.gate-action {
  width: 100%;
  min-height: 52px;
  margin-top: 12px;
}

.gate-loading {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 22px;
}

.gate-loading[hidden] {
  display: none;
}

.gate-loading span {
  width: 48px;
  height: 48px;
  border: 1px solid #332f2c;
  border-top-color: var(--ember);
  border-radius: 50%;
  animation: turn 1.2s linear infinite;
}

.gate-loading p,
.outcome-mark {
  margin: 0;
  color: #716a64;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 9px;
  letter-spacing: .24em;
}

.gate-outcome {
  min-height: 360px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.gate-outcome[hidden] {
  display: none;
}

.gate-outcome .outcome-mark {
  margin-bottom: 22px;
  color: var(--ember);
  font-size: 13px;
}

.gate-outcome h3 {
  margin-bottom: 18px;
}

.gate-outcome > p:not(.outcome-mark) {
  margin: 0 0 28px;
  color: #938c84;
  font-size: 16px;
  font-style: italic;
  line-height: 1.65;
}

@keyframes turn {
  to { transform: rotate(360deg); }
}

footer {
  border-top: 1px solid var(--line);
}

@media (max-width: 780px) {
  .shell {
    width: min(100% - 30px, 620px);
  }

  .masthead,
  footer {
    font-size: 8px;
    letter-spacing: 0.16em;
  }

  .thresholds {
    gap: 4px;
  }

  .entrance {
    grid-template-columns: 1fr;
    gap: 72px;
    padding: 42px 0 58px;
  }

  .gate-stage {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 42px 0 58px;
  }

  .gate-intro {
    padding-bottom: 12px;
  }

  .challenge-card {
    min-height: 480px;
    padding: 26px 20px;
  }

  .dossier-evidence {
    grid-template-columns: 1fr;
  }

  .relation-geometry {
    padding: 18px 14px;
  }

  .geometry-panels {
    grid-template-columns: 1fr;
  }

  .consequence-ledger {
    padding: 18px 14px;
  }

  .interpretation-dossier {
    padding: 18px 14px;
  }

  .chronology-dossier {
    padding: 18px 14px;
  }

  .coherence-dossier {
    padding: 18px 14px;
  }

  .synthesis-dossier {
    padding: 18px 14px;
  }

  .chronology-heading,
  .coherence-heading,
  .synthesis-heading {
    flex-direction: column;
  }

  .chronology-clock {
    box-sizing: border-box;
    flex-basis: auto;
    width: 100%;
    text-align: left;
  }

  .consequence-grid,
  .consequence-objective ul,
  .interpretation-protocol ul,
  .chronology-grid,
  .chronology-protocol ul,
  .coherence-witnesses,
  .coherence-protocol ul,
  .synthesis-fragments,
  .synthesis-protocol ol {
    grid-template-columns: 1fr;
  }

  .chronology-records li {
    grid-template-columns: minmax(76px, .5fr) minmax(0, 1fr) auto;
  }

  .memory-seal {
    min-height: 300px;
    padding: 26px 20px;
  }

  .option {
    grid-template-columns: 30px 1fr;
    padding: 12px;
  }

  .door {
    width: min(220px, 58vw);
  }

  .content {
    text-align: left;
  }

  .field-row {
    grid-template-columns: 1fr;
    gap: 12px;
    border: 0;
  }

  input {
    border-bottom: 1px solid rgba(233, 226, 215, 0.38);
  }

  .field-row button {
    min-height: 52px;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .door-mark {
    animation: breathe 5s ease-in-out infinite;
  }

  @keyframes breathe {
    0%, 100% { opacity: .48; }
    50% { opacity: .92; }
  }
}