:root {
  --ink: #17130f;
  --ink-soft: #2e2922;
  --cream: #f4ead5;
  --cream-muted: #d8c9ad;
  --cream-faint: rgba(244, 234, 213, 0.64);
  --gold: #d7a94c;
  --gold-bright: #efcb73;
  --rust: #9f4b31;
  --indigo: #203e54;
  --teal: #2f6b6a;
  --glass: rgba(19, 16, 13, 0.79);
  --glass-deep: rgba(13, 11, 9, 0.92);
  --line: rgba(239, 203, 115, 0.32);
  --safe-top: max(22px, env(safe-area-inset-top));
  --safe-right: max(22px, env(safe-area-inset-right));
  --safe-bottom: max(18px, env(safe-area-inset-bottom));
  --safe-left: max(22px, env(safe-area-inset-left));
  --avatar-height: 18vh;
  --avatar-left: 28vw;
  --avatar-top: 68vh;
  --parallax-x: 0px;
  --parallax-y: 0px;
  --foreground-x: 0px;
  --foreground-y: 0px;
  font-family: "IBM Plex Sans Variable", "IBM Plex Sans", system-ui, sans-serif;
  color: var(--cream);
  background: var(--ink);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  min-width: 320px;
  min-height: 100%;
  margin: 0;
  overflow: hidden;
  background: var(--ink);
}

body {
  min-height: 100dvh;
}

button,
a,
input {
  font: inherit;
}

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

button {
  color: inherit;
}

button:focus-visible,
a:focus-visible,
input:focus-visible {
  outline: 2px solid var(--gold-bright);
  outline-offset: 4px;
}

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

.explore-skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  color: var(--ink);
  background: var(--gold-bright);
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

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

.experience {
  position: relative;
  width: 100vw;
  height: 100dvh;
  isolation: isolate;
  overflow: hidden;
  background: #18130d;
}

.scene,
.scene__image,
.scene__foreground,
.scene__veil,
.scene__vignette,
.scene__grain,
.scene__horizon-line {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.scene {
  z-index: -3;
  overflow: hidden;
  background: linear-gradient(180deg, #9d7141, #20170e 78%);
}

.scene__image {
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  will-change: transform, opacity, filter;
}

.scene__image--current {
  z-index: 1;
  opacity: 1;
  transform: scale(1.045) translate3d(var(--parallax-x), var(--parallax-y), 0);
  transition:
    opacity 820ms cubic-bezier(0.2, 0.7, 0.2, 1),
    filter 820ms ease,
    transform 220ms ease-out;
}

.scene__image--previous {
  z-index: 0;
  opacity: 0;
  transform: scale(1.07);
  filter: saturate(0.75) brightness(0.7);
  transition: opacity 820ms ease;
}

.scene__foreground {
  z-index: 2;
  inset: -3%;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  clip-path: inset(62% 0 0 0);
  -webkit-mask-image: linear-gradient(to bottom, transparent 60%, #000 79%);
  mask-image: linear-gradient(to bottom, transparent 60%, #000 79%);
  opacity: 0.76;
  transform: scale(1.085)
    translate3d(var(--foreground-x), var(--foreground-y), 0);
  filter: saturate(1.04) contrast(1.02) brightness(0.88);
  transition:
    opacity 820ms ease,
    transform 260ms ease-out;
  will-change: transform, opacity;
}

.scene__veil {
  z-index: 3;
  background:
    linear-gradient(
      90deg,
      rgba(10, 8, 6, 0.68) 0%,
      transparent 36%,
      transparent 60%,
      rgba(9, 8, 7, 0.5) 100%
    ),
    linear-gradient(
      180deg,
      rgba(9, 8, 7, 0.28) 0%,
      transparent 28%,
      rgba(9, 8, 7, 0.55) 100%
    );
}

.scene__vignette {
  z-index: 4;
  box-shadow: inset 0 0 15vw 5vw rgba(8, 6, 4, 0.54);
}

.scene__grain {
  z-index: 5;
  opacity: 0.11;
  mix-blend-mode: soft-light;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.6'/%3E%3C/svg%3E");
}

.scene__horizon-line {
  z-index: 6;
  inset: auto 0 0;
  height: 38%;
  background: linear-gradient(180deg, transparent, rgba(14, 10, 7, 0.36));
}

.loading-gate,
.arrival-gate {
  position: absolute;
  z-index: 40;
  inset: 0;
  display: grid;
  place-items: center;
  padding: clamp(24px, 5vw, 70px);
}

.loading-gate {
  color: var(--cream);
  background:
    radial-gradient(
      circle at 50% 42%,
      rgba(214, 169, 76, 0.19),
      transparent 28%
    ),
    linear-gradient(180deg, rgba(20, 16, 11, 0.97), rgba(13, 11, 8, 0.99));
  text-align: center;
  transition:
    opacity 500ms ease,
    visibility 500ms ease;
}

.loading-gate.is-leaving {
  opacity: 0;
  visibility: hidden;
}

.loading-gate__sigil {
  position: relative;
  width: 82px;
  height: 82px;
  margin-bottom: 24px;
}

.loading-gate__sigil span {
  position: absolute;
  inset: 50%;
  width: 56px;
  height: 56px;
  border: 1px solid rgba(239, 203, 115, 0.54);
  transform: translate(-50%, -50%) rotate(45deg);
  animation: sigil-turn 6s linear infinite;
}

.loading-gate__sigil span:nth-child(2) {
  width: 38px;
  height: 38px;
  animation-direction: reverse;
  animation-duration: 4.5s;
}

.loading-gate__sigil span:nth-child(3) {
  width: 10px;
  height: 10px;
  background: var(--gold);
  box-shadow: 0 0 28px rgba(239, 203, 115, 0.64);
  animation: none;
}

@keyframes sigil-turn {
  to {
    transform: translate(-50%, -50%) rotate(405deg);
  }
}

.loading-gate__eyebrow,
.arrival-gate__kicker,
.dialog-kicker,
.chapter-panel__eyebrow,
.location-rail__title,
.companion__role,
.mode-indicator,
.location-mark__region {
  margin: 0;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.loading-gate__title {
  margin: 8px 0 3px;
  font-family: "Source Serif 4 Variable", Georgia, serif;
  font-size: clamp(3.8rem, 10vw, 8rem);
  font-weight: 470;
  letter-spacing: 0.13em;
  line-height: 0.92;
}

.loading-gate__world-note {
  margin: 7px 0 28px;
  color: var(--cream-muted);
  font-family: "Source Serif 4 Variable", Georgia, serif;
  font-size: clamp(0.95rem, 1.8vw, 1.18rem);
  font-style: italic;
}

.loading-gate__track {
  width: min(290px, 74vw);
  height: 1px;
  overflow: hidden;
  background: rgba(244, 234, 213, 0.2);
}

.loading-gate__track span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--gold-bright);
  box-shadow: 0 0 12px var(--gold);
  transition: width 180ms ease;
}

.loading-gate__status {
  margin: 13px 0 0;
  color: var(--cream-faint);
  font-size: 0.78rem;
}

.arrival-gate {
  background: linear-gradient(
    90deg,
    rgba(12, 9, 6, 0.86),
    rgba(12, 9, 6, 0.24) 68%,
    rgba(12, 9, 6, 0.32)
  );
}

.arrival-gate__frame {
  position: relative;
  width: min(690px, 100%);
  margin-right: min(34vw, 430px);
  padding: clamp(28px, 5vw, 58px);
  border: 1px solid rgba(239, 203, 115, 0.42);
  background:
    linear-gradient(135deg, rgba(30, 24, 17, 0.91), rgba(14, 12, 9, 0.76)),
    radial-gradient(
      circle at top right,
      rgba(215, 169, 76, 0.18),
      transparent 45%
    );
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.42);
  -webkit-backdrop-filter: blur(15px);
  backdrop-filter: blur(15px);
}

.arrival-gate__frame::before,
.arrival-gate__frame::after {
  content: "";
  position: absolute;
  width: 34px;
  height: 34px;
  border-color: var(--gold);
  opacity: 0.8;
}

.arrival-gate__frame::before {
  top: -1px;
  left: -1px;
  border-top: 3px solid;
  border-left: 3px solid;
}

.arrival-gate__frame::after {
  right: -1px;
  bottom: -1px;
  border-right: 3px solid;
  border-bottom: 3px solid;
}

.arrival-gate__kicker {
  color: var(--gold-bright);
}

.arrival-gate h1 {
  margin: 10px 0 14px;
  font-family: "Source Serif 4 Variable", Georgia, serif;
  font-size: clamp(4rem, 9vw, 7.7rem);
  font-weight: 500;
  letter-spacing: 0.055em;
  line-height: 0.86;
}

.arrival-gate__definition {
  max-width: 52ch;
  margin: 0;
  color: var(--cream);
  font-family: "Source Serif 4 Variable", Georgia, serif;
  font-size: clamp(1.08rem, 2vw, 1.38rem);
  line-height: 1.42;
}

.arrival-gate__invitation {
  max-width: 57ch;
  margin: 20px 0 0;
  color: var(--cream-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

.arrival-gate__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.explore-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid var(--line);
  color: var(--cream);
  background: rgba(20, 17, 13, 0.42);
  text-decoration: none;
  cursor: pointer;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background 160ms ease;
}

.explore-button:hover {
  transform: translateY(-2px);
  border-color: var(--gold-bright);
}

.explore-button--primary {
  gap: 25px;
  color: var(--ink);
  background: var(--gold-bright);
  border-color: var(--gold-bright);
  font-weight: 650;
}

.explore-button--primary:hover {
  background: #f7d98a;
}

.explore-button--quiet {
  color: var(--cream-muted);
}

.arrival-gate__note {
  margin: 16px 0 0;
  color: rgba(244, 234, 213, 0.49);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.66rem;
  letter-spacing: 0.02em;
}

.explorer-shell {
  position: absolute;
  z-index: 10;
  inset: 0;
}

.explorer-topbar {
  position: absolute;
  z-index: 22;
  top: var(--safe-top);
  right: var(--safe-right);
  left: var(--safe-left);
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(180px, 0.8fr) minmax(
      245px,
      1fr
    );
  align-items: center;
  min-height: 56px;
  padding: 0 2px 11px;
  border-bottom: 1px solid rgba(244, 234, 213, 0.19);
}

.explorer-brand {
  display: inline-flex;
  flex-direction: column;
  width: max-content;
  color: var(--cream);
  text-decoration: none;
}

.explorer-brand__name {
  font-family: "Source Serif 4 Variable", Georgia, serif;
  font-size: 1rem;
  font-weight: 620;
  letter-spacing: 0.08em;
}

.explorer-brand__world {
  margin-top: 2px;
  color: var(--gold-bright);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.journey-progress {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.journey-progress__label {
  color: var(--cream-muted);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.65rem;
}

.journey-progress__track {
  width: min(140px, 13vw);
  height: 1px;
  overflow: hidden;
  background: rgba(244, 234, 213, 0.25);
}

.journey-progress__track span {
  display: block;
  width: 12.5%;
  height: 100%;
  background: var(--gold-bright);
  transition: width 650ms cubic-bezier(0.2, 0.7, 0.2, 1);
}

.explorer-tools {
  display: flex;
  justify-content: flex-end;
  gap: 7px;
}

.tool-button {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 34px;
  padding: 0 9px;
  border: 1px solid transparent;
  color: var(--cream-muted);
  background: transparent;
  font-size: 0.72rem;
  cursor: pointer;
  transition:
    color 150ms ease,
    border-color 150ms ease,
    background 150ms ease;
}

.tool-button > span:first-child {
  color: var(--gold-bright);
  font-size: 0.9rem;
}

.tool-button:hover {
  color: var(--cream);
  border-color: var(--line);
  background: rgba(18, 14, 10, 0.45);
}

.tool-button:disabled,
.portal-button:disabled {
  opacity: 0.45;
  cursor: wait;
}

.location-rail {
  position: absolute;
  z-index: 18;
  top: 108px;
  left: var(--safe-left);
  width: 42px;
}

.location-rail__title {
  color: rgba(244, 234, 213, 0.52);
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}

.location-rail ol {
  display: grid;
  gap: 9px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.location-rail button {
  position: relative;
  width: 30px;
  height: 30px;
  padding: 0;
  border: 0;
  color: rgba(244, 234, 213, 0.55);
  background: transparent;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.58rem;
  cursor: pointer;
}

.location-rail button::before {
  content: "";
  position: absolute;
  inset: 7px;
  border: 1px solid rgba(244, 234, 213, 0.28);
  transform: rotate(45deg);
  transition:
    background 180ms ease,
    border-color 180ms ease,
    transform 180ms ease;
}

.location-rail button span {
  position: relative;
  z-index: 1;
}

.location-rail button:hover::before,
.location-rail button[aria-current="step"]::before {
  border-color: var(--gold-bright);
  background: rgba(215, 169, 76, 0.26);
  transform: rotate(45deg) scale(1.12);
}

.location-rail button[aria-current="step"] {
  color: var(--cream);
}

.location-mark {
  position: absolute;
  z-index: 16;
  top: clamp(112px, 16vh, 168px);
  left: clamp(76px, 8vw, 140px);
  display: flex;
  align-items: flex-start;
  gap: 15px;
  max-width: 430px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.72);
}

.location-mark__number {
  margin: 1px 0 0;
  color: var(--gold-bright);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.72rem;
}

.location-mark__region {
  color: rgba(244, 234, 213, 0.66);
}

.location-mark h2 {
  margin: 3px 0 0;
  font-family: "Source Serif 4 Variable", Georgia, serif;
  font-size: clamp(1.55rem, 2.8vw, 2.6rem);
  font-weight: 520;
  letter-spacing: -0.02em;
  line-height: 1;
}

.chapter-panel {
  position: absolute;
  z-index: 17;
  top: clamp(118px, 16vh, 164px);
  right: var(--safe-right);
  width: min(530px, 42vw);
  max-height: calc(100dvh - 228px);
  overflow: auto;
  overscroll-behavior: contain;
  padding: clamp(24px, 3vw, 42px);
  border: 1px solid rgba(239, 203, 115, 0.28);
  background:
    linear-gradient(145deg, rgba(21, 17, 13, 0.89), rgba(14, 12, 10, 0.74)),
    radial-gradient(
      circle at top right,
      rgba(215, 169, 76, 0.1),
      transparent 44%
    );
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.34);
  -webkit-backdrop-filter: blur(16px) saturate(0.85);
  backdrop-filter: blur(16px) saturate(0.85);
  scrollbar-width: thin;
  scrollbar-color: rgba(239, 203, 115, 0.45) transparent;
  transition:
    opacity 280ms ease,
    transform 380ms cubic-bezier(0.2, 0.75, 0.2, 1);
}

.chapter-panel::before {
  content: "";
  position: absolute;
  inset: 9px;
  border: 1px solid rgba(244, 234, 213, 0.08);
  pointer-events: none;
}

.chapter-panel__rule {
  width: 42px;
  height: 3px;
  margin-bottom: 17px;
  background: var(--gold-bright);
  box-shadow: 0 0 16px rgba(239, 203, 115, 0.45);
}

.chapter-panel__eyebrow {
  color: var(--gold-bright);
}

.chapter-panel h2 {
  margin: 9px 0 14px;
  font-family: "Source Serif 4 Variable", Georgia, serif;
  font-size: clamp(1.7rem, 2.65vw, 2.65rem);
  font-weight: 510;
  letter-spacing: -0.035em;
  line-height: 1.06;
}

.chapter-panel__lead {
  margin: 0;
  color: var(--cream-muted);
  font-family: "Source Serif 4 Variable", Georgia, serif;
  font-size: clamp(0.98rem, 1.2vw, 1.13rem);
  line-height: 1.57;
}

.chapter-panel__evidence {
  display: grid;
  gap: 0;
  margin-top: 20px;
  border-top: 1px solid rgba(244, 234, 213, 0.15);
}

.evidence-record {
  display: grid;
  grid-template-columns: minmax(90px, 0.55fr) minmax(0, 1.45fr);
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px solid rgba(244, 234, 213, 0.11);
}

.evidence-record dt,
.evidence-record dd {
  margin: 0;
}

.evidence-record dt {
  color: rgba(244, 234, 213, 0.55);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.evidence-record dd {
  color: var(--cream);
  font-size: 0.8rem;
  line-height: 1.44;
}

.chapter-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-top: 17px;
}

.chapter-panel__actions a {
  color: var(--gold-bright);
  font-size: 0.77rem;
  font-weight: 550;
  text-underline-offset: 4px;
}

.chapter-panel__actions a:hover {
  color: var(--cream);
}

.portal-button {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 13px;
  width: 100%;
  margin-top: 20px;
  padding: 13px 14px;
  border: 1px solid rgba(239, 203, 115, 0.36);
  color: var(--cream);
  background: rgba(215, 169, 76, 0.08);
  text-align: left;
  cursor: pointer;
  transition:
    border-color 160ms ease,
    background 160ms ease,
    transform 160ms ease;
}

.portal-button:hover {
  border-color: var(--gold-bright);
  background: rgba(215, 169, 76, 0.15);
  transform: translateY(-2px);
}

.portal-button__icon {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(239, 203, 115, 0.45);
  border-radius: 50%;
  color: var(--gold-bright);
}

.portal-button__copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 3px;
}

.portal-button__copy > span {
  font-size: 0.8rem;
  font-weight: 620;
}

.portal-button__copy small {
  color: rgba(244, 234, 213, 0.55);
  font-size: 0.67rem;
  line-height: 1.35;
}

.companion {
  position: fixed;
  z-index: 15;
  top: var(--avatar-top);
  left: var(--avatar-left);
  width: calc(var(--avatar-height) * 0.667);
  height: var(--avatar-height);
  margin: 0;
  transform-origin: 50% 100%;
  transition:
    top 440ms cubic-bezier(0.2, 0.75, 0.2, 1),
    left 440ms cubic-bezier(0.2, 0.75, 0.2, 1),
    width 440ms ease,
    height 440ms ease,
    opacity 240ms ease,
    filter 260ms ease;
  will-change: top, left, height;
  pointer-events: none;
}

.experience.is-reframing .companion {
  transition: none;
}

.companion__aura {
  position: absolute;
  z-index: -1;
  right: -55%;
  bottom: -8%;
  left: -55%;
  height: 34%;
  border-radius: 50%;
  background: radial-gradient(
    ellipse,
    rgba(239, 203, 115, 0.3),
    transparent 69%
  );
  filter: blur(11px);
  opacity: 0.75;
}

.companion img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center bottom;
  filter: drop-shadow(0 15px 14px rgba(0, 0, 0, 0.45));
  transform-origin: 50% 100%;
  transition:
    transform 420ms cubic-bezier(0.2, 0.75, 0.2, 1),
    filter 240ms ease;
}

.companion figcaption {
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 100px;
  color: var(--cream);
  text-align: center;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.8);
  transform: translateX(-50%);
}

.companion__role {
  color: rgba(244, 234, 213, 0.55);
  font-size: 0.5rem;
}

.companion figcaption strong {
  margin-top: 1px;
  font-family: "Source Serif 4 Variable", Georgia, serif;
  font-size: 0.82rem;
  font-weight: 620;
}

.experience.is-looking-back .companion img {
  transform: perspective(420px) rotateY(180deg) rotate(-1.5deg);
}

.experience.is-presenting .companion img {
  transform: rotate(-2deg) translateY(-2%);
}

.experience.is-idle-leaning .companion img {
  transform: rotate(var(--idle-lean-angle, -4deg))
    translateX(var(--idle-lean-shift, -3%));
}

.experience.is-traversing .companion {
  filter: brightness(1.08) saturate(1.08);
}

.experience.is-traversing .companion img {
  transform: scale(0.94) translateY(2%);
}

.look-control {
  position: absolute;
  z-index: 18;
  bottom: calc(var(--safe-bottom) + 8px);
  left: calc(var(--safe-left) + 5px);
}

.look-control button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  padding: 0 10px;
  border: 0;
  color: rgba(244, 234, 213, 0.67);
  background: rgba(15, 12, 9, 0.35);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.59rem;
  cursor: pointer;
}

.look-control button:hover {
  color: var(--cream);
}

.look-control__icon {
  color: var(--gold-bright);
  font-size: 1rem;
}

.traversal-controls {
  position: absolute;
  z-index: 18;
  right: 50%;
  bottom: var(--safe-bottom);
  display: flex;
  align-items: center;
  gap: 10px;
  transform: translateX(50%);
}

.traversal-controls button {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 40px;
  padding: 0 12px;
  border: 1px solid rgba(244, 234, 213, 0.2);
  color: var(--cream-muted);
  background: rgba(15, 12, 9, 0.52);
  cursor: pointer;
  -webkit-backdrop-filter: blur(9px);
  backdrop-filter: blur(9px);
  transition:
    border-color 160ms ease,
    color 160ms ease,
    background 160ms ease;
}

.traversal-controls button:hover:not(:disabled) {
  color: var(--cream);
  border-color: var(--gold-bright);
  background: rgba(27, 21, 15, 0.72);
}

.traversal-controls button:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.traversal-controls__copy {
  font-size: 0.68rem;
}

.traversal-controls__sigil {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
}

.traversal-controls__sigil span {
  width: 11px;
  height: 11px;
  border: 1px solid var(--gold-bright);
  transform: rotate(45deg);
}

.mode-indicator {
  position: absolute;
  z-index: 18;
  right: var(--safe-right);
  bottom: calc(var(--safe-bottom) + 11px);
  display: flex;
  align-items: center;
  gap: 7px;
  color: rgba(244, 234, 213, 0.58);
  font-size: 0.55rem;
}

.mode-indicator span {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--gold-bright);
  box-shadow: 0 0 8px var(--gold);
}

.explore-dialog {
  width: min(1180px, calc(100vw - 44px));
  max-width: none;
  max-height: calc(100dvh - 44px);
  padding: 0;
  border: 1px solid rgba(239, 203, 115, 0.38);
  color: var(--cream);
  background: transparent;
  box-shadow: 0 38px 130px rgba(0, 0, 0, 0.62);
}

.explore-dialog::backdrop {
  background: rgba(7, 6, 5, 0.78);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.explore-dialog[open] {
  animation: dialog-enter 240ms ease-out both;
}

@keyframes dialog-enter {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.985);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.explore-dialog__frame {
  max-height: calc(100dvh - 44px);
  overflow: auto;
  padding: clamp(22px, 4vw, 46px);
  background:
    linear-gradient(145deg, rgba(27, 22, 16, 0.98), rgba(12, 10, 8, 0.98)),
    radial-gradient(
      circle at top right,
      rgba(215, 169, 76, 0.18),
      transparent 38%
    );
}

.explore-dialog__frame--compact {
  width: min(680px, 100%);
  margin: 0 auto;
}

.explore-dialog__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 21px;
  border-bottom: 1px solid rgba(244, 234, 213, 0.15);
}

.dialog-kicker {
  color: var(--gold-bright);
}

.explore-dialog__header h2 {
  margin: 5px 0 6px;
  font-family: "Source Serif 4 Variable", Georgia, serif;
  font-size: clamp(2rem, 4.5vw, 4.25rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1;
}

.explore-dialog__header p:last-child {
  max-width: 65ch;
  margin: 0;
  color: var(--cream-muted);
  line-height: 1.55;
}

.dialog-close {
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid rgba(244, 234, 213, 0.25);
  color: var(--cream);
  background: transparent;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
}

.dialog-close:hover {
  border-color: var(--gold-bright);
  color: var(--gold-bright);
}

.guide-dialog__grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(130px, 1fr));
  gap: 10px;
  margin-top: 24px;
}

.guide-card {
  position: relative;
  min-width: 0;
  padding: 12px 10px 11px;
  border: 1px solid rgba(244, 234, 213, 0.14);
  color: var(--cream);
  background: rgba(244, 234, 213, 0.035);
  cursor: pointer;
  overflow: hidden;
  transition:
    border-color 150ms ease,
    background 150ms ease,
    transform 150ms ease;
}

.guide-card:hover,
.guide-card[aria-pressed="true"] {
  border-color: var(--gold-bright);
  background: rgba(215, 169, 76, 0.1);
  transform: translateY(-2px);
}

.guide-card__figure {
  display: grid;
  place-items: end center;
  height: min(29vh, 310px);
  min-height: 190px;
  overflow: hidden;
  background:
    radial-gradient(
      ellipse at bottom,
      rgba(215, 169, 76, 0.2),
      transparent 62%
    ),
    linear-gradient(180deg, rgba(32, 62, 84, 0.1), rgba(15, 12, 9, 0.15));
}

.guide-card img {
  display: block;
  width: auto;
  height: 94%;
  max-width: 100%;
  object-fit: contain;
  object-position: center bottom;
  filter: drop-shadow(0 9px 8px rgba(0, 0, 0, 0.4));
}

.guide-card strong,
.guide-card small {
  display: block;
  text-align: left;
}

.guide-card strong {
  margin-top: 9px;
  font-family: "Source Serif 4 Variable", Georgia, serif;
  font-size: 0.95rem;
}

.guide-card small {
  margin-top: 2px;
  color: rgba(244, 234, 213, 0.55);
  font-size: 0.61rem;
  line-height: 1.35;
}

.options-list {
  display: grid;
  gap: 0;
  margin-top: 22px;
}

.option-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(244, 234, 213, 0.12);
}

.option-row--stacked {
  align-items: flex-start;
}

.option-row strong,
.option-row small {
  display: block;
}

.option-row strong {
  font-family: "Source Serif 4 Variable", Georgia, serif;
  font-size: 1.05rem;
  font-weight: 560;
}

.option-row small {
  margin-top: 3px;
  color: rgba(244, 234, 213, 0.55);
  line-height: 1.45;
}

.option-row input {
  width: 44px;
  height: 22px;
  accent-color: var(--gold);
}

.option-static-link {
  display: flex;
  justify-content: space-between;
  gap: 22px;
  margin-top: 22px;
  padding: 16px;
  border: 1px solid rgba(239, 203, 115, 0.34);
  color: var(--gold-bright);
  text-decoration: none;
}

.option-static-link:hover {
  border-color: var(--gold-bright);
  color: var(--cream);
}

.experience-toast {
  position: fixed;
  z-index: 80;
  right: 50%;
  bottom: 82px;
  max-width: min(430px, calc(100vw - 36px));
  padding: 10px 14px;
  border: 1px solid rgba(239, 203, 115, 0.32);
  color: var(--cream);
  background: rgba(13, 11, 9, 0.86);
  font-size: 0.7rem;
  opacity: 0;
  transform: translate(50%, 10px);
  transition:
    opacity 180ms ease,
    transform 180ms ease;
  pointer-events: none;
}

.experience-toast.is-visible {
  opacity: 1;
  transform: translate(50%, 0);
}

.noscript-fallback {
  min-height: 100vh;
  display: grid;
  align-content: center;
  gap: 16px;
  padding: 10vw;
  color: var(--cream);
  background: #17130f;
}

.noscript-fallback h1,
.noscript-fallback p {
  max-width: 760px;
  margin: 0;
}

.noscript-fallback h1 {
  font-family: "Source Serif 4 Variable", Georgia, serif;
  font-size: clamp(2.5rem, 8vw, 6rem);
  font-weight: 500;
}

.noscript-fallback a {
  width: max-content;
  color: var(--gold-bright);
}

.experience[data-motion="off"] *,
.experience[data-motion="off"] *::before,
.experience[data-motion="off"] *::after {
  scroll-behavior: auto !important;
  animation-duration: 1ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: 1ms !important;
}

@media (max-width: 1180px) {
  .location-rail {
    display: none;
  }

  .location-mark {
    left: var(--safe-left);
  }

  .chapter-panel {
    width: min(500px, 48vw);
  }

  .guide-dialog__grid {
    grid-template-columns: repeat(3, minmax(150px, 1fr));
  }
}

@media (max-width: 820px) {
  .experience-toast {
    top: clamp(132px, 19dvh, 168px);
    right: auto;
    bottom: auto;
    left: 12px;
    max-width: min(220px, calc(100vw - 24px));
    transform: translateY(8px);
  }

  .experience-toast.is-visible {
    transform: translateY(0);
  }

  .explorer-topbar {
    grid-template-columns: 1fr auto;
    min-height: 52px;
  }

  .journey-progress {
    display: none;
  }

  .tool-button > span:last-child {
    display: none;
  }

  .tool-button {
    width: 34px;
    justify-content: center;
    padding: 0;
  }

  .location-mark {
    top: 87px;
    max-width: calc(100vw - 44px);
  }

  .location-mark h2 {
    font-size: clamp(1.4rem, 6vw, 2.15rem);
  }

  .chapter-panel {
    top: auto;
    right: 12px;
    bottom: 66px;
    left: 12px;
    width: auto;
    max-height: min(46dvh, 450px);
    padding: 21px 21px 20px;
    border-color: rgba(239, 203, 115, 0.34);
  }

  .chapter-panel h2 {
    font-size: clamp(1.45rem, 5.8vw, 2.15rem);
  }

  .chapter-panel__lead {
    font-size: 0.94rem;
  }

  .evidence-record {
    grid-template-columns: 0.72fr 1.28fr;
  }

  .mode-indicator,
  .look-control {
    display: none;
  }

  .traversal-controls {
    right: 12px;
    left: 12px;
    justify-content: space-between;
    transform: none;
  }

  .traversal-controls__sigil {
    display: none;
  }

  .traversal-controls button {
    min-width: 105px;
    justify-content: center;
  }

  .arrival-gate {
    align-items: end;
    padding: 18px;
    background: linear-gradient(
      180deg,
      rgba(12, 9, 6, 0.2),
      rgba(12, 9, 6, 0.87) 66%
    );
  }

  .arrival-gate__frame {
    width: 100%;
    margin: 0;
    padding: 25px;
  }

  .arrival-gate h1 {
    font-size: clamp(3.6rem, 18vw, 6.5rem);
  }

  .arrival-gate__note {
    display: none;
  }

  .map-dialog__body {
    grid-template-columns: 1fr;
  }

  .map-dialog__art {
    max-height: 44dvh;
  }

  .map-dialog__art img {
    height: 100%;
    object-fit: cover;
  }

  .guide-dialog__grid {
    grid-template-columns: repeat(2, minmax(130px, 1fr));
  }

  .guide-card__figure {
    height: 245px;
  }
}

@media (max-width: 520px) {
  .experience-toast {
    top: clamp(128px, 17dvh, 148px);
    max-width: min(206px, calc(100vw - 24px));
    padding: 9px 11px;
    font-size: 0.64rem;
    line-height: 1.45;
  }

  :root {
    --safe-top: max(12px, env(safe-area-inset-top));
    --safe-left: max(12px, env(safe-area-inset-left));
    --safe-right: max(12px, env(safe-area-inset-right));
  }

  .explorer-brand__name {
    font-size: 0.84rem;
  }

  .explorer-brand__world {
    font-size: 0.5rem;
  }

  .location-mark {
    top: 73px;
  }

  .location-mark__number {
    display: none;
  }

  .chapter-panel {
    bottom: 58px;
    max-height: 48dvh;
    padding: 18px;
  }

  .chapter-panel__evidence {
    display: none;
  }

  .chapter-panel__actions {
    margin-top: 13px;
  }

  .portal-button {
    margin-top: 15px;
    padding: 10px;
  }

  .portal-button__copy small {
    display: none;
  }

  .traversal-controls {
    bottom: max(8px, env(safe-area-inset-bottom));
  }

  .traversal-controls button {
    min-width: 96px;
    min-height: 38px;
  }

  .traversal-controls__copy {
    font-size: 0.62rem;
  }

  .arrival-gate__frame {
    padding: 22px;
  }

  .arrival-gate__definition {
    font-size: 1.02rem;
  }

  .arrival-gate__invitation {
    display: none;
  }

  .arrival-gate__actions {
    display: grid;
    margin-top: 21px;
  }

  .explore-button {
    width: 100%;
  }

  .explore-dialog {
    width: calc(100vw - 18px);
    max-height: calc(100dvh - 18px);
  }

  .explore-dialog__frame {
    max-height: calc(100dvh - 18px);
    padding: 19px;
  }

  .explore-dialog__header h2 {
    font-size: 2.2rem;
  }

  .explore-dialog__header p:last-child {
    font-size: 0.8rem;
  }

  .guide-dialog__grid {
    gap: 7px;
  }

  .guide-card {
    padding: 8px;
  }

  .guide-card__figure {
    height: 205px;
    min-height: 170px;
  }
}

@media (max-width: 820px) and (max-height: 520px) {
  .experience-toast {
    top: 142px;
    left: 22px;
    max-width: 176px;
    padding: 8px 10px;
    font-size: 0.61rem;
    line-height: 1.42;
  }
}

@media (min-width: 821px) and (max-height: 520px) {
  .experience-toast {
    top: auto;
    right: auto;
    bottom: 72px;
    left: 22px;
    max-width: 178px;
    padding: 8px 10px;
    font-size: 0.61rem;
    line-height: 1.42;
    transform: translateY(8px);
  }

  .experience-toast.is-visible {
    transform: translateY(0);
  }
}

@media (max-height: 690px) and (min-width: 821px) {
  .explorer-topbar {
    min-height: 44px;
  }

  .location-mark,
  .chapter-panel {
    top: 88px;
  }

  .chapter-panel {
    max-height: calc(100dvh - 154px);
    padding: 22px 26px;
  }

  .chapter-panel h2 {
    font-size: 1.8rem;
  }

  .chapter-panel__lead {
    font-size: 0.92rem;
  }

  .evidence-record {
    padding: 8px 0;
  }

  .portal-button {
    margin-top: 12px;
  }
}

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