@font-face {
  font-family: "Instrument Serif";
  src: url("/fonts/instrument-serif-regular.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Instrument Serif";
  src: url("/fonts/instrument-serif-italic.woff2") format("woff2");
  font-style: italic;
  font-weight: 400;
  font-display: swap;
}

:root {
  --ink: #070a09;
  --ivory: #f3f0e8;
  --mist: rgb(238 241 235 / 74%);
  --dim: rgb(230 235 229 / 60%);
  --hairline: rgb(241 244 237 / 17%);
  --hairline-strong: rgb(241 244 237 / 28%);
  --signal: #b8ffd8;
  --serif: "Instrument Serif", "Iowan Old Style", "Baskerville", "Times New Roman", serif;
  --sans: "Helvetica Neue", "Avenir Next", "Hiragino Kaku Gothic ProN", Arial, sans-serif;
  --side: clamp(1.25rem, 4vw, 4.75rem);
  --header-height: 5.4rem;
  color-scheme: dark;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--ink);
  scroll-behavior: smooth;
  scrollbar-color: rgb(238 241 235 / 34%) transparent;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: clip;
  background: transparent;
  color: var(--ivory);
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.55;
}

body.menu-open {
  overflow: hidden;
}

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

button {
  color: inherit;
  font: inherit;
}

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

button,
a,
[role="tab"] {
  outline: none;
}

button:focus-visible,
a:focus-visible,
[role="tab"]:focus-visible {
  outline: 1px solid var(--signal);
  outline-offset: 5px;
}

::selection {
  background: var(--signal);
  color: var(--ink);
}

.skip-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--ivory);
  color: var(--ink);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  transform: translateY(-180%);
  transition: transform 180ms ease;
}

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

.field {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  background: var(--ink);
  pointer-events: none;
}

.field-canvas,
.field-fallback,
.field-grain {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.field-canvas {
  z-index: 2;
  opacity: 0;
  transition: opacity 900ms ease;
}

.webgl-ready .field-canvas,
.canvas-ready .field-canvas {
  opacity: 1;
}

.field-fallback {
  z-index: 1;
  background:
    radial-gradient(circle at 70% 32%, rgb(152 120 255 / 24%), transparent 28%),
    radial-gradient(circle at 42% 70%, rgb(99 223 210 / 18%), transparent 34%),
    radial-gradient(ellipse at 64% 50%, rgb(181 255 217 / 8%), transparent 48%),
    #070a09;
  transition: opacity 800ms ease;
}

.webgl-ready .field-fallback,
.canvas-ready .field-fallback {
  opacity: 0;
}

.field-grain {
  z-index: 3;
  opacity: 0.14;
  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='.92' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.27'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
}

.page-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 60;
  width: 100%;
  height: 1px;
  background: rgb(255 255 255 / 8%);
}

.page-progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, #9dffd4, #d4c2ff, #effff8);
  box-shadow: 0 0 14px rgb(174 255 218 / 70%);
  transform: scaleX(0);
  transform-origin: left center;
}

.site-header,
main,
.site-footer {
  position: relative;
  z-index: 5;
}

.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  padding: max(0.25rem, env(safe-area-inset-top)) var(--side) 0;
  color: rgb(246 244 237 / 88%);
  transition: transform 480ms cubic-bezier(0.22, 1, 0.36, 1), color 300ms ease;
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgb(5 7 7 / 52%), transparent);
  opacity: 0.72;
  pointer-events: none;
}

.site-header.is-hidden {
  transform: translateY(-110%);
}

.brand {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  gap: 0.72rem;
  font-family: var(--serif);
  font-size: 1.18rem;
  font-weight: 400;
  letter-spacing: 0.02em;
}

.brand-mark {
  width: 1.85rem;
  height: 1.85rem;
  overflow: visible;
}

.brand-mark path {
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 180;
  stroke-dashoffset: 0;
}

.js .brand-mark path {
  stroke-dashoffset: 180;
}

.js.is-ready .brand-mark path {
  animation: draw-mark 1.45s 120ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1.5rem, 3vw, 3.5rem);
}

.site-nav a {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  min-height: 44px;
  gap: 0.65rem;
  font-size: 0.66rem;
  font-weight: 400;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.site-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0.35rem;
  left: 1.65rem;
  height: 1px;
  background: var(--signal);
  box-shadow: 0 0 10px var(--signal);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 350ms cubic-bezier(0.22, 1, 0.36, 1);
}

.site-nav a:hover::after,
.site-nav a[aria-current="true"]::after {
  transform: scaleX(1);
}

.site-nav a span {
  color: var(--dim);
  font-size: 0.56rem;
  letter-spacing: 0.04em;
}

.index-toggle {
  display: none;
  min-width: 44px;
  min-height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.scene {
  position: relative;
  isolation: isolate;
  width: 100%;
}

.hero {
  min-height: max(100svh, 46rem);
  padding: calc(var(--header-height) + 1.4rem) var(--side) max(2rem, env(safe-area-inset-bottom));
  overflow: hidden;
  touch-action: pan-y;
}

.hero-scrim {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgb(6 8 8 / 68%) 0%, rgb(6 8 8 / 28%) 38%, transparent 68%),
    linear-gradient(0deg, rgb(6 8 8 / 50%) 0%, transparent 30%);
  pointer-events: none;
}

.hero-meta {
  display: flex;
  justify-content: space-between;
  padding-top: 0.5rem;
  border-top: 1px solid var(--hairline);
}

.hero-meta p,
.hero-overline,
.field-instruction,
.section-heading > p,
.pulse-heading > p,
.eyebrow,
.method-coordinate {
  margin: 0;
  font-family: var(--sans);
  font-size: clamp(0.59rem, 0.64vw, 0.71rem);
  font-weight: 400;
  letter-spacing: 0.18em;
  line-height: 1.4;
  text-transform: uppercase;
}

.hero-meta p {
  color: var(--dim);
}

.hero-meta p:first-child {
  color: rgb(242 242 235 / 78%);
}

.hero-meta i {
  display: inline-block;
  width: 0.38rem;
  height: 0.38rem;
  margin-right: 0.55rem;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 14px var(--signal);
  animation: status-breathe 2.8s ease-in-out infinite;
}

.hero-copy {
  position: absolute;
  top: 50%;
  left: var(--side);
  width: calc(100% - var(--side) * 2);
  transform: translateY(-48%);
}

.hero-overline {
  margin: 0 0 clamp(1.5rem, 3vh, 2.75rem);
  color: rgb(241 244 237 / 54%);
}

.hero-title,
.opening-title,
.section-heading h2,
.return h2,
.pulse-heading h2,
.closing-pulse span,
.footer-brand,
.error-page h1,
.error-code {
  font-family: var(--serif);
  font-weight: 400;
}

.hero-title {
  max-width: 100%;
  margin: 0;
  font-size: clamp(5.1rem, 11.85vw, 12rem);
  letter-spacing: -0.047em;
  line-height: 0.76;
}

.title-line {
  display: block;
  overflow: hidden;
  padding: 0 0.04em 0.08em;
}

.title-line > span {
  display: block;
}

.js .title-line > span {
  opacity: 0;
  transform: translateY(115%) rotate(1.5deg);
}

.js.is-ready .title-line:first-child > span {
  animation: title-rise 1.25s 140ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.js.is-ready .title-line:nth-child(2) > span {
  animation: title-rise 1.35s 280ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.title-line-indent {
  padding-left: clamp(2rem, 8.5vw, 10rem);
}

.hero-title em,
.opening-title em,
.return h2 em,
.pulse-heading h2 em {
  color: var(--signal);
  font-style: italic;
  font-weight: 400;
  text-shadow: 0 0 42px rgb(184 255 216 / 13%);
}

.hero-intro {
  width: min(31rem, 42vw);
  margin: clamp(2rem, 4vh, 3.5rem) 0 0 auto;
  color: rgb(238 240 234 / 68%);
  font-size: clamp(0.88rem, 1vw, 1.03rem);
  font-weight: 300;
  line-height: 1.7;
}

.hero-actions {
  position: absolute;
  right: var(--side);
  bottom: max(2rem, env(safe-area-inset-bottom));
  left: var(--side);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  pointer-events: none;
}

.pulse-trigger,
.scroll-cue {
  pointer-events: auto;
}

.pulse-trigger {
  display: inline-flex;
  align-items: center;
  min-height: 58px;
  gap: 0.9rem;
  padding: 0;
  border: 0;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.pulse-trigger > span:last-child {
  display: grid;
  gap: 0.12rem;
}

.pulse-trigger b {
  font-family: var(--serif);
  font-size: 1.12rem;
  font-weight: 400;
  letter-spacing: 0.005em;
}

.pulse-trigger small {
  color: var(--dim);
  font-size: 0.59rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.pulse-orbit {
  position: relative;
  display: grid;
  width: 3.5rem;
  height: 3.5rem;
  border: 1px solid var(--hairline-strong);
  border-radius: 50%;
  place-items: center;
  transition: border-color 300ms ease, transform 500ms cubic-bezier(0.16, 1, 0.3, 1);
}

.pulse-orbit::before,
.pulse-orbit::after {
  content: "";
  position: absolute;
  inset: 0.36rem;
  border: 1px solid rgb(184 255 216 / 22%);
  border-radius: inherit;
}

.pulse-orbit::after {
  inset: -0.1rem;
  border-color: transparent var(--signal) transparent transparent;
  animation: orbit-spin 7s linear infinite;
}

.pulse-orbit i {
  width: 0.34rem;
  height: 0.34rem;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 18px var(--signal);
}

.pulse-trigger:not(:disabled):hover .pulse-orbit {
  border-color: rgb(184 255 216 / 75%);
  transform: scale(1.08);
}

.pulse-trigger.is-pulsing .pulse-orbit::before {
  animation: ui-pulse 850ms cubic-bezier(0.16, 1, 0.3, 1);
}

.pulse-trigger:disabled,
.closing-pulse:disabled {
  cursor: default;
}

.scroll-cue {
  display: flex;
  align-items: center;
  min-height: 44px;
  gap: 0.8rem;
  color: rgb(241 243 237 / 62%);
  font-size: 0.63rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.scroll-cue svg {
  width: 1.2rem;
  height: 1.2rem;
  overflow: visible;
  fill: none;
  stroke: currentColor;
  stroke-width: 1;
  animation: arrow-float 2s ease-in-out infinite;
}

.field-instruction {
  position: absolute;
  top: 50%;
  right: calc(var(--side) * 0.55);
  margin: 0;
  color: rgb(240 242 237 / 42%);
  writing-mode: vertical-rl;
  transform: translateY(-50%);
}

.instruction-touch {
  display: none;
}

.opening {
  min-height: 135svh;
  padding: 28svh var(--side) 20svh;
  background: linear-gradient(180deg, transparent, rgb(5 7 7 / 44%) 35%, rgb(5 7 7 / 36%) 70%, transparent);
}

.opening-index {
  display: grid;
  grid-template-columns: minmax(3rem, 8vw) 1fr;
  align-items: center;
  width: min(47rem, 74vw);
  margin-left: auto;
  color: var(--dim);
  font-size: 0.66rem;
  font-weight: 400;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.opening-index span {
  font-family: var(--serif);
  font-size: 1.4rem;
  letter-spacing: 0;
}

.opening-index p {
  margin: 0;
}

.opening-title {
  margin: clamp(5rem, 13vh, 9rem) 0 0;
  font-size: clamp(5rem, 14.5vw, 13.5rem);
  letter-spacing: -0.052em;
  line-height: 0.73;
}

.opening-title span,
.opening-title em {
  display: block;
}

.opening-title em {
  margin-left: clamp(2rem, 17vw, 18rem);
}

.opening-copy {
  width: min(33rem, 43vw);
  margin: clamp(4rem, 11vh, 8rem) 10vw 0 auto;
  color: var(--mist);
  font-family: var(--serif);
  font-size: clamp(1.35rem, 2.15vw, 2.1rem);
  line-height: 1.35;
}

.opening-line {
  width: min(46rem, 72vw);
  height: 1px;
  margin: clamp(6rem, 15vh, 12rem) auto 0;
  overflow: hidden;
  background: var(--hairline);
}

.opening-line span {
  display: block;
  width: 30%;
  height: 100%;
  background: linear-gradient(90deg, transparent, var(--signal), transparent);
  box-shadow: 0 0 12px var(--signal);
  animation: line-travel 5s ease-in-out infinite;
}

.method {
  min-height: 160svh;
  padding: clamp(8rem, 16vh, 12rem) var(--side);
  background: radial-gradient(circle at 25% 52%, rgb(4 6 6 / 72%), transparent 38%);
}

.section-heading {
  display: grid;
  grid-template-columns: 1fr minmax(18rem, 57vw);
  align-items: start;
  gap: 3rem;
}

.section-heading > p,
.pulse-heading > p,
.eyebrow {
  color: var(--dim);
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(4.25rem, 8.6vw, 9rem);
  letter-spacing: -0.045em;
  line-height: 0.84;
}

.method-stage {
  display: grid;
  grid-template-columns: minmax(21rem, 1.3fr) minmax(18rem, 0.7fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 8rem);
  margin-top: clamp(7rem, 15vh, 12rem);
}

.method-visual {
  --tilt-x: 0deg;
  --tilt-y: 0deg;
  position: relative;
  width: min(58vw, 43rem);
  aspect-ratio: 1;
  margin: 0 auto;
  border: 1px solid var(--hairline);
  border-radius: 50%;
  transform: perspective(900px) rotateX(var(--tilt-x)) rotateY(var(--tilt-y));
  transform-style: preserve-3d;
  transition: transform 140ms ease-out;
}

.method-visual::before,
.method-visual::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.method-visual::before {
  inset: 15%;
  border: 1px solid rgb(243 240 232 / 12%);
}

.method-visual::after {
  inset: 33%;
  background: radial-gradient(circle, rgb(184 255 216 / 11%), transparent 66%);
  filter: blur(12px);
}

.orbital {
  position: absolute;
  z-index: 2;
  width: 0.48rem;
  height: 0.48rem;
  border-radius: 50%;
  background: var(--ivory);
  box-shadow: 0 0 14px currentColor, 0 0 32px currentColor;
  color: var(--signal);
  transition: opacity 300ms ease, transform 600ms cubic-bezier(0.16, 1, 0.3, 1);
}

.orbital::after {
  content: "";
  position: absolute;
  inset: -0.65rem;
  border: 1px solid rgb(230 255 242 / 20%);
  border-radius: 50%;
}

.orbital-one {
  top: 11.5%;
  left: 48%;
}

.orbital-two {
  top: 49%;
  right: 6.1%;
}

.orbital-three {
  bottom: 11%;
  left: 30%;
}

.method-core {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 4;
  display: grid;
  width: 17%;
  aspect-ratio: 1;
  border: 1px solid rgb(215 255 234 / 36%);
  border-radius: 50%;
  background: rgb(5 10 8 / 30%);
  box-shadow: 0 0 60px rgb(117 255 195 / 9%), inset 0 0 28px rgb(117 255 195 / 8%);
  place-items: center;
  transform: translate(-50%, -50%) translateZ(28px);
}

.method-core::before,
.method-core::after {
  content: "";
  position: absolute;
  border: 1px solid rgb(227 255 240 / 16%);
  border-radius: inherit;
}

.method-core::before {
  inset: -34%;
}

.method-core::after {
  inset: -72%;
}

.method-core span {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 9px var(--signal), 0 0 28px var(--signal), 0 0 70px rgb(184 255 216 / 70%);
}

.method-route {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  transform: translateZ(12px);
}

.route-base,
.route-active {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.route-base {
  stroke: rgb(242 244 238 / 13%);
  stroke-width: 1;
}

.route-active {
  opacity: 0.06;
  stroke: var(--signal);
  stroke-width: 1.7;
  filter: drop-shadow(0 0 9px rgb(184 255 216 / 75%));
  transition: opacity 600ms ease, stroke-dashoffset 1.2s cubic-bezier(0.16, 1, 0.3, 1);
  stroke-dasharray: 900;
  stroke-dashoffset: 900;
}

.method-stage[data-method-stage="edge"] .route-edge,
.method-stage[data-method-stage="observe"] .route-observe,
.method-stage[data-method-stage="return"] .route-return {
  opacity: 1;
  stroke-dashoffset: 0;
}

.method-stage[data-method-stage="edge"] .orbital-one,
.method-stage[data-method-stage="observe"] .orbital-two,
.method-stage[data-method-stage="return"] .orbital-three {
  transform: scale(1.65);
}

.method-coordinate {
  position: absolute;
  right: 8%;
  bottom: 20%;
  margin: 0;
  color: var(--dim);
  transform: rotate(90deg);
  transform-origin: bottom right;
}

.method-tabs {
  display: grid;
  border-top: 1px solid var(--hairline);
}

.method-tabs button {
  position: relative;
  display: grid;
  grid-template-columns: 2.7rem 1fr;
  align-items: center;
  min-height: 5.1rem;
  padding: 0;
  border: 0;
  border-bottom: 1px solid var(--hairline);
  background: transparent;
  color: var(--dim);
  text-align: left;
  cursor: pointer;
  transition: color 350ms ease, padding-left 500ms cubic-bezier(0.16, 1, 0.3, 1);
}

.method-tabs button::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--signal), transparent);
  box-shadow: 0 0 11px rgb(184 255 216 / 70%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 500ms cubic-bezier(0.16, 1, 0.3, 1);
}

.method-tabs button:hover,
.method-tabs button[aria-selected="true"] {
  padding-left: 0.65rem;
  color: var(--ivory);
}

.method-tabs button[aria-selected="true"]::after {
  transform: scaleX(1);
}

.method-tabs button span {
  color: var(--dim);
  font-size: 0.62rem;
  letter-spacing: 0.09em;
}

.method-tabs button b {
  font-family: var(--serif);
  font-size: clamp(1.35rem, 2vw, 1.9rem);
  font-weight: 400;
}

.method-panels {
  min-height: 9rem;
  padding-top: 2.2rem;
}

.method-panels article[hidden] {
  display: none;
}

.method-panels article {
  animation: panel-arrive 650ms cubic-bezier(0.16, 1, 0.3, 1);
}

.method-panels p {
  margin: 0;
  color: var(--mist);
  font-family: var(--serif);
  font-size: clamp(1.25rem, 1.8vw, 1.65rem);
  line-height: 1.42;
}

.method-panels p + p {
  margin-top: 0.5rem;
  color: var(--dim);
}

.return {
  display: grid;
  min-height: 125svh;
  padding: 24svh var(--side) 18svh;
  align-content: center;
  background:
    linear-gradient(90deg, rgb(6 8 8 / 63%), transparent 66%),
    linear-gradient(180deg, transparent, rgb(4 6 6 / 36%), transparent);
}

.return-copy .eyebrow {
  margin-bottom: clamp(3rem, 8vh, 6rem);
}

.return h2 {
  margin: 0;
  font-size: clamp(4.3rem, 10.7vw, 11rem);
  letter-spacing: -0.052em;
  line-height: 0.78;
}

.return h2 span {
  display: block;
}

.return h2 span:nth-child(2) {
  margin-left: clamp(1.5rem, 9vw, 10rem);
}

.return-notes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  width: min(58rem, 70vw);
  margin: clamp(6rem, 14vh, 11rem) 0 0 auto;
  border-top: 1px solid var(--hairline);
}

.return-notes p {
  margin: 0;
  padding: 1.3rem 1rem 0 0;
  color: var(--mist);
  font-family: var(--serif);
  font-size: 1.15rem;
}

.return-notes p + p {
  padding-left: 1.2rem;
  border-left: 1px solid var(--hairline);
}

.return-notes span {
  display: block;
  margin-bottom: 0.55rem;
  color: var(--dim);
  font-family: var(--sans);
  font-size: 0.58rem;
  font-weight: 400;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.pulse {
  min-height: 140svh;
  padding: clamp(8rem, 18vh, 14rem) var(--side) clamp(8rem, 16vh, 12rem);
  background: radial-gradient(circle at 76% 70%, rgb(4 7 7 / 68%), transparent 40%);
}

.pulse-heading {
  display: grid;
  grid-template-columns: minmax(9rem, 1fr) minmax(20rem, 1.45fr) minmax(13rem, 0.55fr);
  align-items: end;
  gap: 2rem;
}

.pulse-heading h2 {
  margin: 0;
  font-size: clamp(5rem, 10.5vw, 10rem);
  letter-spacing: -0.05em;
  line-height: 0.76;
}

.pulse-heading > span {
  max-width: 18rem;
  color: var(--dim);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  line-height: 1.65;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: clamp(7rem, 16vh, 12rem);
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}

.metrics article {
  min-height: 17rem;
  padding: 1.35rem 1.2rem 1.6rem;
}

.metrics article + article {
  border-left: 1px solid var(--hairline);
}

.metrics p,
.metrics span {
  margin: 0;
  color: var(--dim);
  font-size: 0.58rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.metrics strong {
  display: block;
  margin-top: 2.7rem;
  overflow-wrap: anywhere;
  font-family: var(--serif);
  font-size: clamp(3.4rem, 6vw, 6rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 0.9;
}

.metrics span {
  display: block;
  margin-top: 0.8rem;
}

.closing-pulse {
  position: relative;
  display: grid;
  width: min(43rem, 70vw);
  aspect-ratio: 1;
  margin: clamp(10rem, 22vh, 17rem) auto 0;
  border: 1px solid var(--hairline-strong);
  border-radius: 50%;
  background: rgb(6 10 8 / 15%);
  place-content: center;
  text-align: center;
  cursor: pointer;
  backdrop-filter: blur(3px);
  transition: border-color 500ms ease, background 500ms ease, transform 700ms cubic-bezier(0.16, 1, 0.3, 1);
}

.closing-pulse::before,
.closing-pulse::after {
  content: "";
  position: absolute;
  border: 1px solid rgb(231 255 243 / 13%);
  border-radius: inherit;
  pointer-events: none;
}

.closing-pulse::before {
  inset: 9%;
}

.closing-pulse::after {
  inset: 26%;
}

.closing-pulse:not(:disabled):hover {
  border-color: rgb(184 255 216 / 62%);
  background: rgb(111 255 189 / 5%);
  transform: scale(1.018);
}

.closing-pulse.is-pulsing::before {
  animation: closing-ring 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.closing-pulse span {
  font-size: clamp(4.6rem, 9.5vw, 8.5rem);
  letter-spacing: -0.05em;
  line-height: 0.85;
}

.closing-pulse small {
  margin-top: 1.1rem;
  color: var(--dim);
  font-size: 0.59rem;
  font-weight: 400;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  align-items: end;
  min-height: 38rem;
  padding: 8rem var(--side) max(2rem, env(safe-area-inset-bottom));
  border-top: 1px solid var(--hairline);
  background: linear-gradient(180deg, rgb(4 6 5 / 34%), rgb(4 6 5 / 88%));
}

.footer-brand {
  align-self: start;
  font-size: clamp(5rem, 12vw, 11rem);
  letter-spacing: -0.055em;
  line-height: 0.8;
}

.site-footer p,
.return-link {
  margin: 0;
  color: var(--dim);
  font-size: 0.62rem;
  font-weight: 400;
  letter-spacing: 0.13em;
  line-height: 1.75;
  text-transform: uppercase;
}

.return-link {
  min-height: 44px;
}

.reveal {
  opacity: 1;
  transform: none;
}

.js .reveal {
  opacity: 0;
  transform: translateY(2rem);
  transition: opacity 1s ease, transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.error-page {
  min-height: 100svh;
  background:
    radial-gradient(circle at 72% 36%, rgb(143 119 239 / 17%), transparent 32%),
    radial-gradient(circle at 25% 74%, rgb(92 221 203 / 12%), transparent 38%),
    var(--ink);
}

.error-page main {
  min-height: 100svh;
  padding: var(--side);
}

.error-page .brand {
  position: relative;
  z-index: 2;
}

.error-code {
  position: absolute;
  top: 50%;
  right: 2vw;
  color: rgb(246 243 235 / 5%);
  font-size: min(45vw, 38rem);
  line-height: 0.7;
  transform: translateY(-50%);
}

.error-page section {
  position: absolute;
  top: 50%;
  left: var(--side);
  width: min(39rem, calc(100% - var(--side) * 2));
  transform: translateY(-42%);
}

.error-page h1 {
  margin: 1.4rem 0 2rem;
  font-size: clamp(5rem, 12vw, 10rem);
  letter-spacing: -0.05em;
  line-height: 0.76;
}

.error-page section > p:not(.eyebrow) {
  max-width: 25rem;
  color: var(--mist);
}

.error-page .trace-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 44px;
  margin-top: 1.6rem;
  border-bottom: 1px solid var(--hairline-strong);
  font-family: var(--serif);
  font-size: 1.15rem;
}

.error-page .trace-link svg {
  width: 1.25rem;
  height: 1.25rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.2;
}

@keyframes draw-mark {
  to { stroke-dashoffset: 0; }
}

@keyframes title-rise {
  to { opacity: 1; transform: translateY(0) rotate(0); }
}

@keyframes status-breathe {
  0%, 100% { opacity: 0.5; transform: scale(0.78); }
  50% { opacity: 1; transform: scale(1); }
}

@keyframes orbit-spin {
  to { transform: rotate(1turn); }
}

@keyframes ui-pulse {
  0% { opacity: 1; transform: scale(1); }
  100% { opacity: 0; transform: scale(2.1); }
}

@keyframes closing-ring {
  0% { opacity: 1; transform: scale(1); }
  100% { opacity: 0; transform: scale(1.9); }
}

@keyframes arrow-float {
  0%, 100% { transform: translateY(-0.16rem); }
  50% { transform: translateY(0.22rem); }
}

@keyframes line-travel {
  0% { transform: translateX(-110%); }
  65%, 100% { transform: translateX(340%); }
}

@keyframes panel-arrive {
  from { opacity: 0; transform: translateY(0.8rem); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 1040px) {
  .hero-title {
    font-size: clamp(5rem, 12vw, 8.8rem);
  }

  .method-stage {
    gap: 3rem;
  }

  .method-visual {
    width: min(56vw, 37rem);
  }

  .pulse-heading {
    grid-template-columns: 0.65fr 1.35fr;
  }

  .pulse-heading > span {
    grid-column: 2;
  }

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

  .metrics article:nth-child(3) {
    border-left: 0;
    border-top: 1px solid var(--hairline);
  }

  .metrics article:nth-child(4) {
    border-top: 1px solid var(--hairline);
  }
}

@media (max-width: 760px) {
  :root {
    --side: 1.25rem;
    --header-height: 4.5rem;
  }

  .site-header {
    padding-top: max(0.2rem, env(safe-area-inset-top));
  }

  .brand {
    font-size: 1rem;
  }

  .brand-mark {
    width: 1.6rem;
    height: 1.6rem;
  }

  .index-toggle {
    position: relative;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.7rem;
    color: var(--ivory);
    font-size: 0.62rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
  }

  .index-toggle i,
  .index-toggle i::before {
    display: block;
    width: 1rem;
    height: 1px;
    background: currentColor;
    transition: transform 350ms ease;
  }

  .index-toggle i {
    position: relative;
  }

  .index-toggle i::before {
    content: "";
    position: absolute;
    top: 0.3rem;
  }

  .index-toggle[aria-expanded="true"] i {
    transform: rotate(45deg);
  }

  .index-toggle[aria-expanded="true"] i::before {
    top: 0;
    transform: rotate(90deg);
  }

  .site-nav {
    position: fixed;
    inset: 0;
    z-index: 1;
    display: grid;
    align-content: center;
    gap: 0;
    padding: 7rem var(--side) 3rem;
    background: rgb(5 7 7 / 94%);
    backdrop-filter: blur(24px);
    visibility: hidden;
    opacity: 0;
    transition: opacity 400ms ease, visibility 400ms;
  }

  .site-nav.is-open {
    visibility: visible;
    opacity: 1;
  }

  .site-nav a {
    display: grid;
    grid-template-columns: 3.4rem 1fr;
    align-items: baseline;
    min-height: auto;
    padding: 1.1rem 0;
    border-bottom: 1px solid var(--hairline);
    font-family: var(--serif);
    font-size: clamp(2.4rem, 11vw, 4.5rem);
    font-weight: 400;
    letter-spacing: -0.035em;
    text-transform: none;
  }

  .site-nav a::after {
    display: none;
  }

  .site-nav a span {
    font-family: var(--sans);
    font-size: 0.58rem;
    letter-spacing: 0.08em;
  }

  .hero {
    min-height: max(100svh, 42rem);
    padding-bottom: max(1.3rem, env(safe-area-inset-bottom));
  }

  .hero-scrim {
    background:
      linear-gradient(180deg, rgb(5 7 7 / 50%), transparent 28%),
      linear-gradient(0deg, rgb(5 7 7 / 72%), transparent 42%);
  }

  .hero-meta p:last-child {
    display: none;
  }

  .hero-copy {
    top: 43%;
    transform: translateY(-48%);
  }

  .hero-overline {
    margin-bottom: 1.5rem;
  }

  .hero-title {
    font-size: clamp(4.1rem, 17.2vw, 6.4rem);
    line-height: 0.8;
  }

  .title-line-indent {
    padding-left: 0.7rem;
  }

  .hero-intro {
    width: min(26rem, 88vw);
    margin: 2.2rem 0 0;
    font-size: 0.82rem;
    line-height: 1.65;
  }

  .hero-actions {
    right: var(--side);
    bottom: max(1.3rem, env(safe-area-inset-bottom));
    left: var(--side);
  }

  .pulse-trigger b {
    font-size: 1rem;
  }

  .pulse-trigger small {
    display: none;
  }

  .pulse-orbit {
    width: 3rem;
    height: 3rem;
  }

  .scroll-cue span {
    display: none;
  }

  .field-instruction {
    top: auto;
    right: var(--side);
    bottom: 5.6rem;
    writing-mode: initial;
    transform: none;
  }

  .instruction-pointer {
    display: none;
  }

  .instruction-touch {
    display: inline;
  }

  .opening {
    min-height: 115svh;
    padding-top: 24svh;
    padding-bottom: 16svh;
  }

  .opening-index {
    width: 100%;
    grid-template-columns: 2.6rem 1fr;
  }

  .opening-title {
    margin-top: 5rem;
    font-size: clamp(4.2rem, 20vw, 7rem);
    line-height: 0.77;
  }

  .opening-title em {
    margin-left: 0.45rem;
  }

  .opening-copy {
    width: 88%;
    margin: 4.5rem 0 0 auto;
    font-size: clamp(1.3rem, 6vw, 1.75rem);
  }

  .opening-line {
    width: 100%;
    margin-top: 6rem;
  }

  .method {
    min-height: auto;
    padding-top: 8rem;
    padding-bottom: 10rem;
  }

  .section-heading {
    display: block;
  }

  .section-heading h2 {
    margin-top: 2rem;
    font-size: clamp(4.2rem, 18vw, 6.5rem);
  }

  .method-stage {
    display: block;
    margin-top: 6rem;
  }

  .method-visual {
    width: min(100%, 31rem);
  }

  .method-controls {
    margin-top: 4.5rem;
  }

  .method-tabs button {
    min-height: 4.7rem;
  }

  .method-tabs button b {
    font-size: 1.4rem;
  }

  .method-panels {
    min-height: 11rem;
  }

  .return {
    min-height: 112svh;
    padding-top: 18svh;
    padding-bottom: 14svh;
  }

  .return h2 {
    font-size: clamp(4rem, 17.5vw, 6.8rem);
    line-height: 0.8;
  }

  .return h2 span:nth-child(2) {
    margin-left: 0.5rem;
  }

  .return-notes {
    grid-template-columns: 1fr;
    width: 86%;
    margin-top: 6rem;
  }

  .return-notes p {
    padding: 1rem 0;
  }

  .return-notes p + p {
    padding-left: 0;
    border-top: 1px solid var(--hairline);
    border-left: 0;
  }

  .pulse {
    min-height: auto;
    padding-top: 8rem;
    padding-bottom: 9rem;
  }

  .pulse-heading {
    display: block;
  }

  .pulse-heading h2 {
    margin: 2rem 0 2.2rem;
    font-size: clamp(4.8rem, 20vw, 7.2rem);
  }

  .pulse-heading > span {
    display: block;
    max-width: 21rem;
  }

  .metrics {
    margin-top: 6rem;
  }

  .metrics article {
    min-height: 13rem;
    padding: 1rem 0.8rem 1.2rem;
  }

  .metrics strong {
    margin-top: 2.2rem;
    font-size: clamp(2.7rem, 14vw, 4.5rem);
  }

  .closing-pulse {
    width: min(96%, 28rem);
    margin-top: 9rem;
  }

  .closing-pulse span {
    font-size: clamp(4rem, 18vw, 6.5rem);
  }

  .site-footer {
    grid-template-columns: 1fr auto;
    min-height: 31rem;
    padding-top: 6rem;
  }

  .footer-brand {
    grid-column: 1 / -1;
    font-size: clamp(5rem, 24vw, 8rem);
  }

  .site-footer p {
    align-self: end;
  }
}

@media (max-width: 430px) {
  .hero-title {
    font-size: clamp(3.65rem, 16.5vw, 4.5rem);
  }

  .hero-intro {
    width: 90%;
  }

  .field-instruction {
    font-size: 0.53rem;
  }

  .metrics p,
  .metrics span {
    letter-spacing: 0.1em;
  }
}

@media (hover: none), (pointer: coarse) {
  .instruction-pointer {
    display: none;
  }

  .instruction-touch {
    display: inline;
  }

  .method-visual {
    transform: none;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .field-canvas {
    display: none;
  }

  .field-fallback {
    opacity: 1 !important;
  }

  .js .reveal,
  .js .title-line > span,
  .js .brand-mark path {
    opacity: 1;
    transform: none;
    stroke-dashoffset: 0;
  }

  .field-instruction,
  .pulse-trigger small {
    display: none;
  }
}