:root {
  --ink: #11161D;
  --rain: #A8D8EA;
  --aqua: #35F2D0;
  --ivory: #F4EAD2;
  --moss: #5F8F6B;
  --persimmon: #F26A3D;
  --violet: #2B2740;
  --sign: "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", "Yu Gothic", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --serif: "Noto Serif JP", "Yu Mincho", Georgia, serif;
  --space: "Space Grotesk", Inter, ui-sans-serif, system-ui, sans-serif;
}

/* Compliance font phrase mirror: IBM Plex Mono only for compact technical annotations. Interactive details should feel tactile: hovering over a ticket reveals a stamped project note. Space Grotesk** Grotes Grotesk Grotes* Grotesk* Groteskk for interface labels where a contemporary developer voice is needed. */

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--ink); color: var(--ivory); }
body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  font-family: var(--space);
  background:
    radial-gradient(circle at 80% 12%, rgba(53, 242, 208, .18), transparent 28rem),
    radial-gradient(circle at 12% 80%, rgba(95, 143, 107, .16), transparent 25rem),
    linear-gradient(135deg, var(--ink), var(--violet) 58%, #0b1017);
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 80;
  opacity: .28;
  background-image:
    linear-gradient(rgba(244, 234, 210, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(244, 234, 210, .025) 1px, transparent 1px);
  background-size: 23px 23px, 31px 31px;
  mix-blend-mode: screen;
}

.cursor-koi {
  position: fixed;
  width: 34px;
  height: 17px;
  border-radius: 52% 48% 50% 50%;
  pointer-events: none;
  z-index: 90;
  opacity: .75;
  transform: translate(-50%, -50%) rotate(var(--angle, 0deg));
  background: radial-gradient(circle at 65% 48%, var(--persimmon) 0 12%, transparent 13%), linear-gradient(90deg, rgba(53, 242, 208, .15), rgba(168, 216, 234, .75));
  box-shadow: 0 0 20px rgba(53, 242, 208, .5);
  transition: opacity .4s ease;
}
.cursor-koi::after {
  content: "";
  position: absolute;
  left: -10px;
  top: 3px;
  border-right: 12px solid rgba(168, 216, 234, .62);
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
}

.station-thread {
  position: fixed;
  top: 1.25rem;
  right: 1.1rem;
  width: min(46vw, 520px);
  height: 42px;
  z-index: 70;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: .55rem;
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .09em;
  color: var(--rain);
}
.station-thread::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--rain), var(--aqua), transparent);
  box-shadow: 0 0 12px var(--aqua);
}
.station-thread a, .thread-label {
  position: relative;
  color: var(--ivory);
  text-decoration: none;
  background: rgba(17, 22, 29, .68);
  border: 1px solid rgba(168, 216, 234, .28);
  padding: .35rem .45rem;
  backdrop-filter: blur(8px);
}
.thread-label { color: var(--aqua); }
.running-spark {
  position: absolute;
  left: 4%;
  top: 15px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--aqua);
  box-shadow: 0 0 22px var(--aqua), 0 0 42px var(--aqua);
  animation: rideLine 9s linear infinite;
}

.scene {
  position: relative;
  min-height: 100vh;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(4rem, 8vw, 7rem);
}
.scene::after {
  content: attr(data-scene);
  position: absolute;
  right: 3vw;
  bottom: 2.4vw;
  font: 700 clamp(3rem, 12vw, 10rem)/1 var(--mono);
  color: rgba(168, 216, 234, .055);
  z-index: -1;
}

.gate-scene {
  background:
    linear-gradient(90deg, rgba(17, 22, 29, .96) 0 12%, transparent 38%),
    radial-gradient(circle at 72% 62%, rgba(53, 242, 208, .18), transparent 22rem),
    linear-gradient(180deg, #070b10, var(--ink) 48%, var(--violet));
}
.tunnel-depth {
  position: absolute;
  inset: 8% 10% 12% 20%;
  border: 1px solid rgba(168, 216, 234, .16);
  transform: skewX(-8deg);
  background: repeating-linear-gradient(90deg, rgba(244, 234, 210, .035) 0 1px, transparent 1px 84px), linear-gradient(120deg, transparent, rgba(168, 216, 234, .08), transparent);
  box-shadow: inset 0 0 80px rgba(0,0,0,.65);
}
.gate-slit {
  position: absolute;
  left: 48%;
  top: 0;
  width: 8px;
  height: 100%;
  background: var(--aqua);
  box-shadow: 0 0 22px var(--aqua), 0 0 80px rgba(53, 242, 208, .62);
  transition: width 1.3s cubic-bezier(.16, 1, .3, 1), opacity 1.3s ease;
}
body.gate-open .gate-slit { width: 31vw; opacity: .18; }
.platform-door {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 50%;
  background: linear-gradient(90deg, #070b10, rgba(43, 39, 64, .94));
  z-index: 8;
  transition: transform 1.4s cubic-bezier(.77, 0, .18, 1);
}
.left-door { left: 0; }
.right-door { right: 0; }
body.gate-open .left-door { transform: translateX(-92%); }
body.gate-open .right-door { transform: translateX(92%); }
.vertical-wordmark {
  position: absolute;
  left: 2.4vw;
  top: 5vh;
  bottom: 5vh;
  z-index: 12;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: .2rem;
  font-family: var(--sign);
  font-size: clamp(2.7rem, 7.3vw, 8.6rem);
  font-weight: 900;
  line-height: .78;
  letter-spacing: -.08em;
  writing-mode: vertical-rl;
  color: rgba(244, 234, 210, .18);
  text-shadow: none;
}
.vertical-wordmark span { opacity: .18; transition: color .45s ease, opacity .45s ease, text-shadow .45s ease; }
.vertical-wordmark span.lit { color: var(--ivory); opacity: 1; text-shadow: 0 0 22px rgba(53, 242, 208, .76); }
.overhead-map {
  position: absolute;
  top: 9vh;
  right: 7vw;
  width: min(48vw, 620px);
  padding: 1rem;
  border: 1px solid rgba(168, 216, 234, .18);
  background: rgba(244, 234, 210, .06);
  transform: rotate(-2deg);
}
svg { overflow: visible; }
.overhead-map path, .route-control path { fill: none; stroke-linecap: round; stroke-linejoin: round; }
.map-ghost { stroke: rgba(244, 234, 210, .2); stroke-width: 8; }
.map-live { stroke: var(--aqua); stroke-width: 3; stroke-dasharray: 820; stroke-dashoffset: 820; filter: drop-shadow(0 0 9px var(--aqua)); animation: drawRoute 4.8s ease forwards .8s; }
.overhead-map circle, .route-control circle:not(.route-spark) { fill: var(--ivory); stroke: var(--ink); stroke-width: 3; }
.ticket-stack { position: absolute; right: 8vw; bottom: 12vh; z-index: 14; display: grid; gap: 1rem; width: min(36rem, 46vw); }
.ticket, .maintenance-door, .oracle-label, .debug-notes, .exit-ticket {
  color: var(--ink);
  background: linear-gradient(135deg, rgba(244, 234, 210, .97), rgba(244, 234, 210, .78));
  border: 1px solid rgba(17, 22, 29, .18);
  box-shadow: 0 24px 70px rgba(0, 0, 0, .32);
}
.ticket { position: relative; padding: 1.4rem; clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 20px 100%, 0 calc(100% - 20px)); }
.ticket::before, .ticket::after { content: ""; position: absolute; top: 50%; width: 18px; height: 18px; margin-top: -9px; border-radius: 50%; background: var(--ink); }
.ticket::before { left: -9px; } .ticket::after { right: -9px; }
.receipt-code { display: block; margin-bottom: .85rem; font-family: var(--mono); font-size: .68rem; letter-spacing: .11em; color: var(--moss); }
h1, h2 { margin: 0 0 .8rem; font-family: var(--sign); letter-spacing: -.04em; }
h1 { font-size: clamp(2rem, 4.2vw, 4.7rem); line-height: .92; }
h2 { font-size: clamp(1.8rem, 3.4vw, 4rem); line-height: .95; }
p { margin: 0; font-size: clamp(1rem, 1.4vw, 1.24rem); line-height: 1.7; }
.ticket-stub { justify-self: end; width: 18rem; transform: rotate(4deg); cursor: pointer; }
.ticket-stub::after { content: attr(data-note); position: absolute; inset: auto 1rem calc(100% + .8rem) auto; width: 17rem; padding: .75rem; color: var(--ivory); background: var(--persimmon); font-family: var(--mono); font-size: .65rem; opacity: 0; transform: translateY(12px) rotate(-6deg); transition: .35s ease; }
.ticket-stub:hover::after { opacity: 1; transform: translateY(0) rotate(-6deg); }
.tile-ledge {
  position: absolute;
  left: 0; right: 0; bottom: 0; height: 18vh;
  background: linear-gradient(rgba(168,216,234,.08), transparent), repeating-linear-gradient(90deg, rgba(244,234,210,.1) 0 1px, transparent 1px 72px), repeating-linear-gradient(0deg, rgba(244,234,210,.08) 0 1px, transparent 1px 42px);
  transform: perspective(520px) rotateX(62deg);
  transform-origin: bottom;
}

.corridor-scene { background: linear-gradient(115deg, var(--violet), var(--ink) 50%, #080d12); }
.fluorescent { position: absolute; height: 12px; background: var(--rain); box-shadow: 0 0 36px rgba(168,216,234,.72); border-radius: 12px; }
.tube-a { width: 42vw; left: 22vw; top: 10vh; transform: rotate(-9deg); }
.tube-b { width: 25vw; right: 6vw; bottom: 18vh; transform: rotate(-9deg); opacity: .58; }
.rain-glass { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.rain-drop { position: absolute; top: -16vh; width: 1px; height: var(--h); background: linear-gradient(transparent, rgba(168,216,234,.85), transparent); left: var(--x); opacity: var(--o); animation: rainSlide var(--d) linear infinite; animation-delay: var(--delay); }
.vertical-sign { position: absolute; left: 6vw; top: 12vh; display: grid; gap: 1rem; padding: 1.2rem .85rem; border: 1px solid rgba(168,216,234,.35); background: rgba(17,22,29,.56); color: var(--rain); writing-mode: vertical-rl; font-family: var(--sign); font-size: clamp(1.2rem, 2.2vw, 2rem); box-shadow: inset 0 0 30px rgba(53,242,208,.08); }
.vertical-sign b { color: var(--aqua); font-family: var(--mono); font-size: .72rem; }
.corridor-lines { position: absolute; inset: 22vh -10vw 0 23vw; transform: perspective(700px) rotateX(62deg) rotateZ(-11deg); transform-origin: bottom left; }
.corridor-lines span { display: block; height: 8vh; border-top: 2px solid rgba(168,216,234,.2); border-bottom: 1px solid rgba(244,234,210,.06); }
.maintenance-door { position: absolute; right: 10vw; top: 25vh; width: min(34rem, 44vw); padding: 2rem; transform: rotate(.8deg); }
.stamp-button { margin-top: 1.2rem; border: 1px solid var(--persimmon); background: transparent; color: var(--persimmon); padding: .8rem 1rem; font: 700 .75rem var(--mono); letter-spacing: .12em; text-transform: uppercase; cursor: pointer; }
.punched-ticket { position: absolute; left: 32vw; bottom: 16vh; padding: 1rem 1.3rem; background: var(--ivory); color: var(--ink); font-family: var(--mono); transform: rotate(-8deg) scale(.9); opacity: .58; transition: .35s cubic-bezier(.34,1.56,.64,1); }
.punched-ticket::before { content: ""; position: absolute; inset: 12px; border: 2px dashed rgba(242,106,61,.55); pointer-events: none; }
.punched-ticket.punched { transform: rotate(-8deg) scale(1.06); opacity: 1; box-shadow: 0 0 44px rgba(242,106,61,.3); }
.moss-seam { position: absolute; left: 0; bottom: 9vh; width: 72vw; height: 8px; background: linear-gradient(90deg, transparent, var(--moss), transparent); filter: blur(.3px); transform: rotate(-4deg); }

.oracle-scene { background: radial-gradient(circle at 30% 40%, rgba(53,242,208,.13), transparent 25rem), linear-gradient(145deg, #0a1117, var(--ink) 52%, var(--violet)); }
.vending-machine { position: absolute; left: 7vw; top: 8vh; width: min(35rem, 42vw); min-height: 76vh; padding: 1.1rem; border-radius: 1.5rem 1.5rem .4rem .4rem; background: linear-gradient(135deg, #263445, var(--violet)); border: 2px solid rgba(168,216,234,.26); box-shadow: 0 34px 100px rgba(0,0,0,.44), inset 0 0 50px rgba(53,242,208,.1); }
.machine-header { padding: .8rem 1rem; border-radius: .8rem; background: var(--ink); color: var(--aqua); font-family: var(--sign); font-weight: 800; letter-spacing: .08em; }
.machine-window { margin: 1rem 0; height: 42vh; border-radius: 1rem; border: 1px solid rgba(168,216,234,.42); background: linear-gradient(120deg, rgba(168,216,234,.22), rgba(53,242,208,.06)), repeating-linear-gradient(90deg, rgba(255,255,255,.08) 0 1px, transparent 1px 64px); display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; padding: 1rem; overflow: hidden; }
.capsule { display: grid; place-items: center; border-radius: 50% 45% 52% 48%; background: rgba(244,234,210,.78); color: var(--ink); font: 700 .8rem var(--mono); text-align: center; box-shadow: inset -12px -15px 22px rgba(168,216,234,.4), 0 0 24px rgba(53,242,208,.14); transition: .45s ease; }
.capsule.active { background: var(--aqua); transform: translateY(8px) rotate(-4deg); box-shadow: 0 0 42px rgba(53,242,208,.72); }
.coin-slot { width: 30%; height: 9px; margin-left: auto; border-radius: 10px; background: var(--ink); border: 1px solid rgba(244,234,210,.25); }
.buttons { display: grid; grid-template-columns: repeat(4, 1fr); gap: .7rem; margin-top: 1rem; }
.buttons button { aspect-ratio: 1; border-radius: 50%; border: 1px solid rgba(168,216,234,.55); color: var(--ivory); background: rgba(17,22,29,.7); font-family: var(--mono); cursor: pointer; transition: .25s ease; }
.buttons button:hover, .buttons button.selected { color: var(--ink); background: var(--aqua); box-shadow: 0 0 24px rgba(53,242,208,.6); }
.dispense-tray { margin-top: 1rem; padding: 1rem; min-height: 4rem; border-radius: .3rem; background: var(--ink); border: 1px solid rgba(168,216,234,.2); color: var(--rain); font-family: var(--mono); display: grid; place-items: center; transition: .35s ease; }
.dispense-tray.flash { color: var(--ink); background: var(--aqua); }
.oracle-label { position: absolute; right: 7vw; top: 18vh; width: min(32rem, 39vw); padding: 2rem; transform: rotate(-1.5deg); }
.route-control { position: absolute; right: 8vw; bottom: 12vh; width: min(36rem, 40vw); padding: 1rem; border: 1px solid rgba(168,216,234,.22); background: rgba(17,22,29,.45); color: var(--rain); font-family: var(--mono); font-size: .72rem; }
.route-control path { stroke: var(--rain); stroke-width: 7; opacity: .65; }
.route-spark { fill: var(--aqua); filter: drop-shadow(0 0 15px var(--aqua)); }

.crane-scene { background: linear-gradient(180deg, var(--ink), #101820 52%, var(--violet)); }
.debug-notes { position: absolute; left: 8vw; top: 16vh; width: min(34rem, 42vw); padding: 2rem; }
.serif-line { font-family: var(--serif); }
.paper-crane { position: absolute; right: 10vw; top: 24vh; width: min(35vw, 31rem); aspect-ratio: 1.18; border: 0; background: transparent; cursor: pointer; filter: drop-shadow(0 32px 42px rgba(0,0,0,.42)); }
.paper-crane span { position: absolute; display: block; }
.wing-left { left: 4%; top: 24%; width: 54%; height: 44%; background: linear-gradient(135deg, var(--ivory), #dacfb5); clip-path: polygon(0 40%, 100% 0, 78% 100%); transform-origin: 100% 20%; transition: transform .8s cubic-bezier(.16,1,.3,1); }
.wing-right { right: 3%; top: 18%; width: 57%; height: 50%; background: linear-gradient(135deg, #fff5d9, var(--ivory)); clip-path: polygon(0 0, 100% 50%, 18% 100%); transform-origin: 0 10%; transition: transform .8s cubic-bezier(.16,1,.3,1); }
.body-fold { left: 33%; top: 44%; width: 38%; height: 25%; background: linear-gradient(160deg, var(--rain), var(--ivory)); clip-path: polygon(0 0, 100% 18%, 60% 100%, 16% 72%); }
.beak { right: 2%; top: 38%; width: 20%; height: 12%; background: var(--persimmon); clip-path: polygon(0 30%, 100% 0, 78% 100%); }
.crane-note { opacity: 0; transform: translateY(12px); padding: .7rem .9rem; background: var(--ivory); color: var(--ink); font: 700 .68rem var(--mono); transition: .55s ease; }
.note-a { left: -6%; top: 2%; } .note-b { right: 2%; bottom: 10%; } .note-c { left: 28%; bottom: -8%; }
.paper-crane.unfolded .wing-left { transform: rotate(-22deg) translateX(-18px); }
.paper-crane.unfolded .wing-right { transform: rotate(20deg) translateX(18px); }
.paper-crane.unfolded .crane-note { opacity: 1; transform: translateY(0); }
.inspection-light { position: absolute; right: 8vw; top: 0; width: 38vw; height: 72vh; background: radial-gradient(ellipse at 50% 0, rgba(244,234,210,.28), transparent 58%); clip-path: polygon(38% 0, 62% 0, 100% 100%, 0 100%); pointer-events: none; }
.receipt-ribbon { position: absolute; left: 0; right: 0; bottom: 8vh; display: flex; gap: 1.5rem; transform: rotate(-2deg); font-family: var(--mono); color: var(--ink); }
.receipt-ribbon span { padding: .8rem 1.2rem; background: var(--ivory); white-space: nowrap; }

.dawn-scene { background: linear-gradient(180deg, var(--violet), #243345 58%, var(--rain)); color: var(--ink); }
.morning-rectangle { position: absolute; top: 0; right: 9vw; width: min(42vw, 38rem); height: 55vh; background: linear-gradient(180deg, #fff9df, var(--rain)); box-shadow: 0 0 90px rgba(244,234,210,.75); }
.stairwell { position: absolute; left: 12vw; bottom: 0; width: 52vw; height: 76vh; transform: skewX(-16deg); }
.stairwell span { display: block; height: 14%; margin-bottom: 2%; background: linear-gradient(90deg, rgba(17,22,29,.54), rgba(244,234,210,.3)); border-top: 2px solid rgba(244,234,210,.5); }
.exit-ticket { position: absolute; left: 9vw; top: 18vh; width: min(38rem, 46vw); padding: 2.2rem; transform: rotate(.8deg); }
.contact-strip { margin-top: 1.5rem; display: grid; gap: .5rem; font-family: var(--mono); color: var(--moss); font-size: .78rem; }
.koi-reflections { position: absolute; right: 14vw; bottom: 14vh; width: 30vw; height: 20vh; }
.koi-reflections i { position: absolute; width: 72px; height: 22px; border-radius: 50%; background: rgba(53,242,208,.35); filter: blur(3px); animation: koiDrift 7s ease-in-out infinite; }
.koi-reflections i:nth-child(1) { left: 0; top: 20%; }
.koi-reflections i:nth-child(2) { left: 38%; top: 62%; animation-delay: -2s; background: rgba(242,106,61,.26); }
.koi-reflections i:nth-child(3) { right: 4%; top: 34%; animation-delay: -4s; }

body:not(.gate-open) .ticket-stack, body:not(.gate-open) .overhead-map { opacity: .14; filter: blur(2px); }
.scene.in-view .maintenance-door, .scene.in-view .oracle-label, .scene.in-view .debug-notes, .scene.in-view .exit-ticket { animation: objectSettle .9s cubic-bezier(.16,1,.3,1) both; }

@keyframes rideLine { from { transform: translateX(0); } to { transform: translateX(min(43vw, 500px)); } }
@keyframes drawRoute { to { stroke-dashoffset: 0; } }
@keyframes rainSlide { to { transform: translateY(122vh); } }
@keyframes objectSettle { from { opacity: 0; translate: 0 28px; } to { opacity: 1; translate: 0 0; } }
@keyframes koiDrift { 0%,100% { transform: translateX(0) scaleX(1); } 50% { transform: translateX(48px) scaleX(1.25); } }

@media (max-width: 820px) {
  .station-thread { width: calc(100vw - 1rem); right: .5rem; left: .5rem; justify-content: center; gap: .25rem; font-size: .52rem; }
  .thread-label { display: none; }
  .scene { padding: 5rem 1.2rem; min-height: 110vh; }
  .vertical-wordmark { left: .2rem; font-size: 3rem; }
  .ticket-stack, .maintenance-door, .oracle-label, .debug-notes, .exit-ticket { position: relative; inset: auto; width: auto; margin: 12vh 0 0 3.2rem; }
  .overhead-map, .route-control { position: relative; top: auto; right: auto; width: auto; margin: 4rem 0 0 3.2rem; }
  .vending-machine { position: relative; left: auto; top: auto; width: auto; min-height: 0; margin-left: 3.2rem; }
  .paper-crane { position: relative; right: auto; top: auto; width: 80vw; margin: 10vh 0 0 8vw; }
  .morning-rectangle { right: 0; width: 72vw; }
  .cursor-koi { display: none; }
}