:root {
  /* compliance typography phrase cache: numbers Interpret “shinonome” “monster” luminous guardian: not horror Grotesk** larger narrative captions calm explanatory */
  --platform-blue: #062B4F;
  --aero-cyan: #62D7FF;
  --mint: #A8FFE6;
  --peach: #FFB38A;
  --cream: #FFF5D7;
  --violet: #7B61FF;
  --teal: #0B5E6E;
  --white: #F8FFFF;
  --progress: 0;
  --pane: 0;
  --x: 50%;
  --y: 50%;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { min-height: 100%; background: var(--platform-blue); }
body {
  margin: 0;
  min-height: 100%;
  overflow-x: hidden;
  font-family: "Space Grotesk", "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--white);
  background: var(--platform-blue);
}
button { font: inherit; }
.filter-bank { position: fixed; pointer-events: none; }

.crossing {
  position: relative;
  min-height: 540vh;
  background: var(--platform-blue);
  isolation: isolate;
}

.sky {
  position: fixed;
  inset: 0;
  z-index: -6;
  background:
    radial-gradient(circle at calc(20% + var(--progress) * 55%) calc(85% - var(--progress) * 44%), rgba(255,179,138, calc(.10 + var(--progress) * .55)), transparent 34%),
    radial-gradient(circle at 15% 18%, rgba(98,215,255,.28), transparent 33%),
    radial-gradient(circle at 82% 12%, rgba(123,97,255,.20), transparent 32%),
    linear-gradient(180deg, #062B4F 0%, #0B5E6E 48%, color-mix(in srgb, #62D7FF 70%, #FFB38A calc(var(--progress) * 55%)) 100%);
  transition: background .2s linear;
}

.sky::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(248,255,255,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(248,255,255,.025) 1px, transparent 1px);
  background-size: 48px 48px, 48px 48px;
  mask-image: linear-gradient(to bottom, transparent, black 36%, black 82%, transparent);
}

.tiles {
  position: fixed;
  left: -10vw;
  right: -10vw;
  bottom: -6vh;
  height: 31vh;
  z-index: -4;
  transform: perspective(620px) rotateX(66deg) translateY(4vh);
  transform-origin: bottom;
  background:
    linear-gradient(90deg, rgba(248,255,255,.14) 1px, transparent 1px),
    linear-gradient(rgba(248,255,255,.17) 1px, transparent 1px),
    radial-gradient(ellipse at 50% 0%, rgba(168,255,230,.25), transparent 60%),
    linear-gradient(180deg, rgba(11,94,110,.62), rgba(6,43,79,.85));
  background-size: 96px 96px, 96px 96px, auto, auto;
  filter: blur(.2px);
}

.horizon-arc {
  position: fixed;
  left: 50%;
  bottom: 13vh;
  width: calc(70vw + var(--progress) * 42vw);
  height: calc(18vh + var(--progress) * 18vh);
  z-index: -3;
  border: 2px solid rgba(255,245,215,.38);
  border-bottom: 0;
  border-radius: 50% 50% 0 0 / 100% 100% 0 0;
  transform: translateX(-50%);
  box-shadow: 0 -18px 64px rgba(255,179,138, calc(.09 + var(--progress) * .38)), inset 0 0 42px rgba(168,255,230,.19);
  opacity: calc(.36 + var(--progress) * .64);
}

.rail-spine {
  position: fixed;
  left: 4vw;
  right: 4vw;
  bottom: 21vh;
  height: 18vh;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(circle at 10% 82%, #F8FFFF 0 4px, transparent 5px),
    radial-gradient(circle at 22% 66%, #A8FFE6 0 7px, transparent 8px),
    radial-gradient(circle at 36% 42%, #62D7FF 0 5px, transparent 6px),
    radial-gradient(circle at 53% 38%, #F8FFFF 0 9px, transparent 10px),
    radial-gradient(circle at 69% 52%, #A8FFE6 0 6px, transparent 7px),
    radial-gradient(circle at 84% 30%, #FFF5D7 0 5px, transparent 6px);
  filter: url(#gooey-dawn) drop-shadow(0 0 18px rgba(168,255,230,.55));
  opacity: .86;
}

.rail-spine::before {
  content: "";
  position: absolute;
  left: 2%;
  right: 1%;
  top: 54%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--mint), var(--cream), transparent);
  border-radius: 999px;
  transform: rotate(-5deg);
  box-shadow: 0 0 18px var(--aero-cyan);
}

.bubble-field, .wipe-layer { position: fixed; inset: 0; pointer-events: none; }
.bubble-field { z-index: 5; filter: url(#gooey-dawn); }
.bubble {
  position: absolute;
  width: var(--s);
  height: var(--s);
  left: var(--l);
  top: var(--t);
  border-radius: 50%;
  background: radial-gradient(circle at 32% 24%, #F8FFFF, rgba(248,255,255,.36) 19%, rgba(168,255,230,.18) 43%, rgba(98,215,255,.08) 68%, transparent 72%);
  border: 1px solid rgba(248,255,255,.45);
  box-shadow: inset -8px -10px 18px rgba(11,94,110,.18), 0 0 24px rgba(168,255,230,.25);
  animation: floatBubble var(--d) ease-in-out infinite alternate;
  opacity: var(--o);
}

.wipe-layer { z-index: 8; }
.wipe {
  position: absolute;
  width: 94px;
  height: 94px;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(248,255,255,.46), rgba(168,255,230,.16) 38%, transparent 70%);
  mix-blend-mode: screen;
  animation: wipeFade .9s ease-out forwards;
}

.platform-lamps {
  position: fixed;
  right: 2.2rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: .85rem;
  z-index: 20;
}
.lamp {
  width: 18px;
  height: 18px;
  border: 1px solid rgba(248,255,255,.55);
  border-radius: 999px;
  background: radial-gradient(circle at 35% 30%, #F8FFFF, #A8FFE6 45%, rgba(98,215,255,.22) 70%);
  box-shadow: 0 0 18px rgba(168,255,230,.38), inset 0 -4px 8px rgba(6,43,79,.32);
  padding: 0;
  cursor: pointer;
  opacity: .52;
  transition: transform .25s ease, opacity .25s ease, box-shadow .25s ease;
}
.lamp span {
  position: absolute;
  right: 28px;
  margin-top: -3px;
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .66rem;
  color: var(--cream);
  opacity: 0;
  transition: opacity .25s ease;
}
.lamp.active { transform: scale(1.36); opacity: 1; box-shadow: 0 0 28px var(--cream), 0 0 54px var(--peach); }
.lamp.active span, .lamp:hover span { opacity: 1; }

.scroll-story { height: 540vh; }
.sticky-stage {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
}
.pane-track {
  height: 100%;
  width: 500vw;
  display: flex;
  transform: translate3d(calc(var(--pane) * -100vw), 0, 0);
  transition: transform .08s linear;
}
.scene {
  position: relative;
  flex: 0 0 100vw;
  min-height: 100vh;
  padding: clamp(2rem, 5vw, 5rem);
  overflow: hidden;
  display: grid;
  place-items: center;
}

.scene::before {
  content: "";
  position: absolute;
  inset: clamp(1rem, 3vw, 2.6rem);
  border: 1px solid rgba(248,255,255,.28);
  border-radius: 42px;
  background:
    radial-gradient(circle at var(--x) var(--y), rgba(248,255,255,.24), transparent 18rem),
    linear-gradient(135deg, rgba(248,255,255,.18), rgba(168,255,230,.08) 35%, rgba(98,215,255,.10));
  box-shadow: inset 0 1px 0 rgba(248,255,255,.42), inset 0 -30px 60px rgba(6,43,79,.18), 0 24px 90px rgba(6,43,79,.38);
  backdrop-filter: blur(18px) saturate(138%);
}

.scene-label, .station-chip {
  position: absolute;
  top: clamp(2rem, 5vw, 5rem);
  left: clamp(2rem, 6vw, 6rem);
  z-index: 2;
  padding: .55rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(248,255,255,.42);
  background: linear-gradient(135deg, rgba(248,255,255,.22), rgba(168,255,230,.12));
  box-shadow: inset 0 1px 0 rgba(248,255,255,.65), 0 10px 24px rgba(6,43,79,.22);
  font-family: "M PLUS Rounded 1c", "Inter", system-ui, sans-serif;
  color: var(--cream);
  letter-spacing: .08em;
  text-transform: lowercase;
}

h1, h2 {
  position: relative;
  z-index: 2;
  margin: 0;
  font-family: "Zen Tokyo Zoo", "Space Grotesk", Impact, fantasy;
  font-weight: 400;
  line-height: .86;
  text-transform: lowercase;
  letter-spacing: .035em;
  text-shadow: 0 0 16px rgba(168,255,230,.35), 0 12px 35px rgba(6,43,79,.42);
}
h1 { font-size: clamp(4rem, 12vw, 12.5rem); filter: blur(calc((1 - var(--progress)) * 2.2px)); }
h1 span { color: var(--mint); }
h2 { max-width: 10ch; font-size: clamp(3.2rem, 8.2vw, 9rem); color: var(--white); }

.caption {
  position: absolute;
  z-index: 2;
  right: clamp(2rem, 7vw, 7rem);
  bottom: clamp(2rem, 7vh, 5rem);
  max-width: 31rem;
  margin: 0;
  padding: 1.1rem 1.25rem;
  border-radius: 26px;
  border: 1px solid rgba(248,255,255,.30);
  background: rgba(6,43,79,.28);
  backdrop-filter: blur(16px);
  color: var(--cream);
  font-family: "Space Grotesk", "Inter", sans-serif;
  font-size: clamp(1rem, 1.4vw, 1.28rem);
  line-height: 1.45;
}

.timestamp {
  position: absolute;
  z-index: 3;
  top: 18vh;
  right: 12vw;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: clamp(2.4rem, 8vw, 8.8rem);
  color: var(--cream);
  text-shadow: 0 0 28px var(--peach), 0 0 58px var(--aero-cyan);
}

.train-door {
  position: absolute;
  top: 0;
  bottom: 0;
  z-index: 4;
  width: 51vw;
  background: linear-gradient(90deg, rgba(248,255,255,.18), rgba(168,255,230,.08)), repeating-linear-gradient(90deg, transparent 0 88px, rgba(248,255,255,.14) 89px 90px);
  backdrop-filter: blur(22px);
  border: 1px solid rgba(248,255,255,.22);
  transition: transform .5s ease;
}
.left-door { left: 0; transform: translateX(calc(var(--progress) * -55vw)); }
.right-door { right: 0; transform: translateX(calc(var(--progress) * 55vw)); }
.condensation {
  position: absolute;
  inset: 0;
  z-index: 5;
  background:
    radial-gradient(circle at 30% 38%, rgba(248,255,255,.4) 0 2px, transparent 3px),
    radial-gradient(circle at 58% 22%, rgba(168,255,230,.34) 0 3px, transparent 4px),
    radial-gradient(circle at 68% 70%, rgba(248,255,255,.32) 0 2px, transparent 3px),
    linear-gradient(135deg, rgba(248,255,255,.16), rgba(248,255,255,.03));
  background-size: 130px 130px, 190px 190px, 160px 160px, auto;
  backdrop-filter: blur(9px);
  mask-image: radial-gradient(circle at var(--x) var(--y), transparent 0 8rem, black 12rem);
  opacity: calc(1 - var(--progress) * 1.6);
}

.glass-orb, .weather-disc {
  position: absolute;
  z-index: 2;
  border-radius: 50%;
  border: 1px solid rgba(248,255,255,.45);
  background: radial-gradient(circle at 35% 25%, #F8FFFF, rgba(168,255,230,.34) 26%, rgba(98,215,255,.18) 55%, rgba(11,94,110,.18));
  box-shadow: inset -18px -28px 45px rgba(6,43,79,.28), 0 0 50px rgba(168,255,230,.35);
  backdrop-filter: blur(15px);
}
.eye-orb { width: 19vw; height: 19vw; min-width: 180px; min-height: 180px; right: 18vw; bottom: 26vh; }
.eye-orb span { position: absolute; inset: 38%; border-radius: 50%; background: var(--violet); box-shadow: 0 0 25px var(--violet); }
.dew-row { position: absolute; left: 11vw; bottom: 19vh; z-index: 2; display: flex; gap: 1rem; }
.dew-row i { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 50%; background: rgba(248,255,255,.24); color: var(--violet); font-style: normal; box-shadow: inset 0 0 16px rgba(248,255,255,.36); }

.timetable-card {
  position: absolute;
  right: 10vw;
  top: 21vh;
  z-index: 2;
  width: min(580px, 44vw);
  padding: 1rem;
  border-radius: 30px;
  background: linear-gradient(135deg, rgba(255,245,215,.24), rgba(168,255,230,.13));
  border: 1px solid rgba(248,255,255,.42);
  box-shadow: inset 0 1px rgba(248,255,255,.5), 0 28px 70px rgba(6,43,79,.32);
  backdrop-filter: blur(20px);
}
.time-line {
  display: grid;
  grid-template-columns: 5rem 1fr auto;
  gap: .9rem;
  align-items: center;
  padding: .9rem 1rem;
  margin: .45rem;
  border-radius: 18px;
  background: rgba(248,255,255,.16);
  animation: ripple 4.6s ease-in-out infinite;
}
.time-line:nth-child(2) { animation-delay: -.8s; }
.time-line:nth-child(3) { animation-delay: -1.7s; }
.time-line:nth-child(4) { animation-delay: -2.4s; }
.time-line b, .time-line em { font-family: "IBM Plex Mono", ui-monospace, monospace; }
.time-line em { color: var(--mint); font-style: normal; font-size: .8rem; }
.time-line span { font-family: "M PLUS Rounded 1c", "Inter", sans-serif; color: var(--cream); }
.route-map { position: absolute; left: 13vw; bottom: 23vh; z-index: 2; display: flex; gap: 2.2rem; filter: url(#gooey-dawn); }
.route-map span { width: 42px; height: 42px; border-radius: 50%; background: radial-gradient(circle, #F8FFFF, #A8FFE6 55%, transparent 70%); animation: detach 5.5s ease-in-out infinite alternate; }
.route-map span:nth-child(even) { animation-delay: -1.5s; }

.monster-fragment {
  position: absolute;
  right: 12vw;
  top: 17vh;
  z-index: 2;
  width: min(520px, 42vw);
  height: min(520px, 42vw);
  filter: drop-shadow(0 0 36px rgba(168,255,230,.38));
}
.horn { position: absolute; left: 18%; top: 3%; width: 34%; height: 48%; border-radius: 80% 20% 70% 20%; background: linear-gradient(135deg, rgba(248,255,255,.52), rgba(98,215,255,.17)); transform: rotate(-24deg); }
.iris { position: absolute; width: 19%; height: 19%; border-radius: 50%; background: radial-gradient(circle, #F8FFFF 0 12%, #7B61FF 15% 55%, rgba(123,97,255,.25) 70%); box-shadow: 0 0 34px var(--violet); }
.iris-a { left: 47%; top: 30%; }
.iris-b { left: 63%; top: 47%; transform: scale(.55); opacity: .65; }
.fin { position: absolute; border-radius: 65% 35% 70% 30%; background: linear-gradient(135deg, rgba(168,255,230,.46), rgba(11,94,110,.08)); border: 1px solid rgba(248,255,255,.26); backdrop-filter: blur(12px); }
.fin-a { width: 52%; height: 22%; left: 9%; top: 58%; transform: rotate(22deg); }
.fin-b { width: 44%; height: 20%; right: 5%; top: 66%; transform: rotate(-25deg); }
.spine-bubbles { position: absolute; inset: 0; filter: url(#gooey-dawn); }
.spine-bubbles span { position: absolute; border-radius: 50%; background: rgba(168,255,230,.62); }
.spine-bubbles span:nth-child(1) { width: 44px; height: 44px; left: 18%; top: 76%; }
.spine-bubbles span:nth-child(2) { width: 62px; height: 62px; left: 31%; top: 66%; }
.spine-bubbles span:nth-child(3) { width: 84px; height: 84px; left: 45%; top: 55%; }
.spine-bubbles span:nth-child(4) { width: 56px; height: 56px; left: 62%; top: 43%; }
.spine-bubbles span:nth-child(5) { width: 40px; height: 40px; left: 76%; top: 32%; }
.weather-disc { left: 12vw; bottom: 18vh; width: 210px; height: 210px; display: grid; place-items: center; text-align: center; padding: 2rem; }
.weather-disc strong { font-family: "IBM Plex Mono", ui-monospace, monospace; font-size: 2.2rem; color: var(--cream); }
.weather-disc span { font-family: "M PLUS Rounded 1c", "Inter", sans-serif; color: var(--teal); }

.aquarium-glass {
  position: absolute;
  inset: 18vh 12vw 17vh 12vw;
  z-index: 2;
  border-radius: 42px;
  border: 1px solid rgba(248,255,255,.36);
  background: linear-gradient(180deg, rgba(98,215,255,.18), rgba(168,255,230,.12)), radial-gradient(circle at 20% 80%, rgba(255,245,215,.22), transparent 33%);
  backdrop-filter: blur(18px);
  overflow: hidden;
}
.tile-reflection { position: absolute; inset: 54% -4% -8%; background: repeating-linear-gradient(90deg, rgba(248,255,255,.15) 0 3px, transparent 3px 70px), linear-gradient(rgba(255,245,215,.12), rgba(6,43,79,.28)); transform: skewY(-5deg); }
.jelly-sign {
  position: absolute;
  padding: .8rem 1.35rem;
  border-radius: 24px 24px 48px 24px;
  background: linear-gradient(135deg, rgba(248,255,255,.34), rgba(168,255,230,.12));
  border: 1px solid rgba(248,255,255,.34);
  font-family: "M PLUS Rounded 1c", "Inter", sans-serif;
  color: var(--cream);
  animation: jellyDrift 6s ease-in-out infinite alternate;
}
.sign-a { left: 10%; top: 18%; }
.sign-b { right: 22%; top: 29%; animation-delay: -1.6s; }
.sign-c { left: 41%; bottom: 24%; animation-delay: -3s; }
.vending-glow { position: absolute; right: 9vw; bottom: 13vh; z-index: 3; display: flex; gap: .7rem; padding: .8rem; border-radius: 20px; background: rgba(6,43,79,.32); }
.vending-glow span { width: 38px; height: 88px; border-radius: 15px; background: linear-gradient(#FFF5D7, #FFB38A); box-shadow: 0 0 28px rgba(255,179,138,.55); }
.vending-glow span:nth-child(2) { background: linear-gradient(#F8FFFF, #62D7FF); }
.vending-glow span:nth-child(3) { background: linear-gradient(#A8FFE6, #7B61FF); }

.sunrise-ticket {
  position: absolute;
  left: 10vw;
  top: 22vh;
  z-index: 2;
  width: min(540px, 42vw);
  padding: 1.5rem;
  border-radius: 34px;
  background: linear-gradient(135deg, rgba(255,245,215,.70), rgba(255,179,138,.35));
  color: var(--platform-blue);
  box-shadow: inset 0 1px rgba(248,255,255,.8), 0 25px 75px rgba(255,179,138,.34);
}
.sunrise-ticket small, .sunrise-ticket span { display: block; font-family: "IBM Plex Mono", ui-monospace, monospace; }
.sunrise-ticket strong { display: block; margin: .7rem 0; font-family: "Zen Tokyo Zoo", "Space Grotesk", fantasy; font-size: clamp(2rem, 5vw, 4.8rem); color: var(--violet); line-height: .95; }
.departure-arc { position: absolute; right: 9vw; bottom: 18vh; width: min(520px, 42vw); height: min(520px, 42vw); z-index: 2; }
.departure-arc i { position: absolute; inset: var(--inset); border: 2px solid rgba(255,245,215,.72); border-bottom-color: transparent; border-left-color: transparent; border-radius: 50%; transform: rotate(-38deg); box-shadow: 0 0 35px rgba(255,179,138,.38); }
.departure-arc i:nth-child(1) { --inset: 5%; }
.departure-arc i:nth-child(2) { --inset: 20%; border-color: rgba(168,255,230,.54); border-bottom-color: transparent; border-left-color: transparent; }
.departure-arc i:nth-child(3) { --inset: 35%; border-color: rgba(123,97,255,.44); border-bottom-color: transparent; border-left-color: transparent; }

@keyframes floatBubble { from { transform: translate3d(0, 0, 0) scale(.92); } to { transform: translate3d(18px, -34px, 0) scale(1.08); } }
@keyframes wipeFade { from { opacity: .8; transform: translate(-50%, -50%) scale(.25); } to { opacity: 0; transform: translate(-50%, -50%) scale(2.1); } }
@keyframes ripple { 0%,100% { transform: translateX(0) skewX(0deg); } 50% { transform: translateX(12px) skewX(-2deg); } }
@keyframes detach { from { transform: translateY(0) scale(1); } to { transform: translateY(-44px) scale(1.35); } }
@keyframes jellyDrift { from { transform: translateY(0) rotate(-2deg); } to { transform: translateY(-24px) rotate(4deg); } }

@media (max-width: 760px) {
  .platform-lamps { right: 1rem; }
  .scene { padding: 1.2rem; align-items: start; padding-top: 22vh; }
  .scene::before { inset: .75rem; border-radius: 28px; }
  .caption { left: 1.4rem; right: 3.2rem; bottom: 1.4rem; }
  .timetable-card, .monster-fragment, .sunrise-ticket { width: auto; left: 1.5rem; right: 3.5rem; top: 36vh; }
  .aquarium-glass { inset: 30vh 3.2rem 22vh 1.2rem; }
  .weather-disc, .eye-orb, .departure-arc { display: none; }
  h1 { font-size: clamp(3.7rem, 18vw, 6rem); }
  h2 { font-size: clamp(3rem, 15vw, 5rem); }
}