* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  background: #ffffff;
  width: 100%;
  overflow-x: hidden;
  scrollbar-width: none;
  -ms-overflow-style: none;
  font-family:
    system-ui,
    -apple-system,
    sans-serif;
}

/* Intro overlay: covers the page on first load while the 0–100% counter runs,
   then fades away (see Preloader) before the page intro plays. */
#preloader {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: #ffffff;
}

.preloader-count {
  position: absolute;
  top: 1.25rem;
  left: 1.5rem;
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  color: #111;
  font-variant-numeric: tabular-nums;
}

#cursor {
  position: fixed;
  top: 0;
  left: 0;
  width: 20px;
  height: 20px;
  background: transparent;
  border: 1px solid #111;
  border-radius: 0;
  pointer-events: none;
  z-index: 1000;
  transition:
    width 0.3s cubic-bezier(0.65, 0, 0.35, 1),
    height 0.3s cubic-bezier(0.65, 0, 0.35, 1),
    border-radius 0.3s cubic-bezier(0.65, 0, 0.35, 1);
  will-change: transform;
}

#cursor::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  border: 1px solid #111;
  border-radius: 0;
  opacity: 0;
  z-index: -1;
  transform: translate(-50%, -50%) scale(1);
  transform-origin: center center;
  transition:
    opacity 0.35s cubic-bezier(0.65, 0, 0.35, 1),
    transform 0.35s cubic-bezier(0.65, 0, 0.35, 1),
    border-radius 0.35s cubic-bezier(0.65, 0, 0.35, 1);
  pointer-events: none;
}

#cursor.is-hover {
  width: 60px;
  height: 60px;
  border-radius: 50%;
}

#cursor.is-hover::after {
  border-radius: 50%;
  opacity: 1;
  transform: translate(-50%, -50%) scale(0.7);
}

@media (hover: none) {
  #cursor {
    display: none;
  }
}

html::-webkit-scrollbar,
body::-webkit-scrollbar {
  width: 0;
  height: 0;
  display: none;
}

body {
  color: #111;
}

/* Hidden until the first-load intro reveals them (see _playIntro). Prevents a
   flash of resting nav/footer text while textures load before the intro runs. */
html.js #nav a,
html.js #footer a {
  opacity: 0;
}

#nav {
  position: fixed;
  top: 1.25rem;
  left: 1.5rem;
  z-index: 200;
  display: flex;
  gap: 0.35rem;
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  pointer-events: none;
}

#nav a:not(:last-child)::after {
  content: ",";
  margin-left: 0.05rem;
}

.page-title {
  position: fixed;
  top: 1.25rem;
  right: 1.5rem;
  z-index: 10;
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0.02em;
  color: #111;
  opacity: 0.5;
  pointer-events: none;
  margin: 0;
}

#nav a {
  position: relative;
  color: #111;
  text-decoration: none;
  pointer-events: auto;
  opacity: 0.5;
  transition: opacity 0.15s ease;
}

#nav a::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 0.45s cubic-bezier(0.77, 0, 0.18, 1);
  pointer-events: none;
}

#nav a:hover::before,
#nav a.is-active::before {
  transform: scaleX(1);
  transform-origin: left center;
}

.inner-fact {
  position: fixed;
  top: 10rem;
  left: 1.5rem;
  z-index: 10;
  max-width: 16rem;
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.35;
  letter-spacing: 0.02em;
  color: #111;
  pointer-events: none;
  margin: 0;
}

#nav a:hover,
#nav a.is-active {
  opacity: 1;
}

#footer {
  position: fixed;
  bottom: 1.25rem;
  left: 1.5rem;
  right: 1.5rem;
  z-index: 200;
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  pointer-events: none;
}

#footer a {
  position: relative;
  color: #111;
  text-decoration: none;
  pointer-events: auto;
  opacity: 0.5;
  transition: opacity 0.15s ease;
}

#footer a::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 0.45s cubic-bezier(0.77, 0, 0.18, 1);
  pointer-events: none;
}

#footer a:hover::before {
  transform: scaleX(1);
  transform-origin: left center;
}

#footer a:hover {
  opacity: 1;
}

#footer div a:not(:last-child)::after {
  content: ",";
  margin-left: 0.05rem;
}

#gpu-canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 100;
  display: block;
  pointer-events: none;
}

#app {
  position: relative;
  width: 100%;
  min-height: 100vh;
}

.page {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  min-height: 100vh;
  pointer-events: none;
}

.page-main .slot {
  position: fixed;
  top: 0;
  left: 0;
  width: 23vw;
  display: block;
  pointer-events: auto;
  will-change: transform;
}

.page-main .slot figure {
  width: 100%;
  height: 100%;
  display: block;
}

.page-main .slot-caption {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  padding-top: 0.5rem;
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  color: #111;
  opacity: 0.5;
  pointer-events: none;
}

.page-main .slot-0 {
  aspect-ratio: 4907 / 7360;
}
.page-main .slot-1 {
  aspect-ratio: 6000 / 4000;
}
.page-main .slot-2 {
  aspect-ratio: 3634 / 5998;
}
.page-main .slot-3 {
  aspect-ratio: 3769 / 5025;
}
.page-main .slot-4 {
  aspect-ratio: 6804 / 4104;
}

.page-inner .stack {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 48px;
  width: 100%;
  padding-top: calc((100vh - var(--cell-h)) / 2);
  padding-bottom: calc((100vh - var(--cell-h)) / 2);
}

.page-inner .slot {
  width: 23vw;
  display: block;
  flex-shrink: 0;
}

.page-inner .slot figure {
  width: 100%;
  height: 100%;
  display: block;
}

.page-inner[data-image="0"] .slot {
  aspect-ratio: 4907 / 7360;
}
.page-inner[data-image="1"] .slot {
  aspect-ratio: 6000 / 4000;
}
.page-inner[data-image="2"] .slot {
  aspect-ratio: 3634 / 5998;
}
.page-inner[data-image="3"] .slot {
  aspect-ratio: 3769 / 5025;
}
.page-inner[data-image="4"] .slot {
  aspect-ratio: 6804 / 4104;
}

.page-inner[data-image="0"] {
  --cell-h: calc(23vw * 7360 / 4907);
}
.page-inner[data-image="1"] {
  --cell-h: calc(23vw * 4000 / 6000);
}
.page-inner[data-image="2"] {
  --cell-h: calc(23vw * 5998 / 3634);
}
.page-inner[data-image="3"] {
  --cell-h: calc(23vw * 5025 / 3769);
}
.page-inner[data-image="4"] {
  --cell-h: calc(23vw * 4104 / 6804);
}