:root {
  --abyss: #05070B;
  --chrome: #C9D3DC;
  --steel: #263445;
  --blush: #FF5FA2;
  --cyan: #28F1E3;
  --violet: #8B6CFF;
  --pearl: #F4F7FA;
  --bebas: "Bebas Neue", Impact, sans-serif;
  --space: "Space Grotesk", system-ui, sans-serif;
  --jp: "Noto Sans JP", "Zen Kaku Gothic New", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--pearl);
  background: var(--abyss);
  font-family: var(--space);
  overflow-x: hidden;
}

.svg-defs { position: fixed; pointer-events: none; }
.water-field {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(circle at 72% 78%, rgba(255, 95, 162, .18), transparent 28%),
    radial-gradient(circle at 15% 20%, rgba(40, 241, 227, .12), transparent 26%),
    radial-gradient(circle at 50% 45%, rgba(139, 108, 255, .15), transparent 40%),
    linear-gradient(125deg, #05070B 0%, #07111A 45%, #05070B 100%);
}
.water-field::before,
.water-field::after {
  content: "";
  position: absolute;
  inset: -20%;
  background-image: repeating-linear-gradient(0deg, transparent 0 13px, rgba(201, 211, 220, .035) 14px, transparent 15px);
  transform: rotate(-8deg);
  animation: driftLines 18s linear infinite;
}
.water-field::after {
  background-image: radial-gradient(ellipse at center, transparent 0 45%, rgba(244, 247, 250, .08) 46%, transparent 49%);
  background-size: 34vw 18vh;
  opacity: .35;
  animation: rippleField 24s ease-in-out infinite;
}
.chrome-horizon {
  position: absolute;
  top: 12vh;
  left: 9vw;
  right: 10vw;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--chrome), var(--cyan), var(--blush), transparent);
  box-shadow: 0 0 20px rgba(40, 241, 227, .35);
  animation: horizonScan 7s ease-in-out infinite;
}
.scan {
  position: absolute;
  width: 50vw;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(40, 241, 227, .8), transparent);
  filter: blur(.2px);
  opacity: .5;
}
.veil-one { top: 34vh; left: -15vw; transform: rotate(24deg); animation: zCurrent 9s linear infinite; }
.veil-two { top: 70vh; right: -20vw; transform: rotate(24deg); animation: zCurrent 12s linear infinite reverse; }
.cursor-ripple {
  position: fixed;
  width: 16rem;
  height: 16rem;
  margin: -8rem 0 0 -8rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(40,241,227,.12), rgba(255,95,162,.06) 34%, transparent 62%);
  transform: translate3d(50vw, 50vh, 0) scale(.7);
  mix-blend-mode: screen;
  transition: opacity .4s ease;
}

.masthead {
  position: fixed;
  top: 4.6vh;
  left: 5vw;
  right: 5vw;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  pointer-events: none;
}
.brand {
  pointer-events: auto;
  color: rgba(201, 211, 220, .68);
  text-decoration: none;
  font-family: var(--bebas);
  font-size: clamp(1.8rem, 3.4vw, 4.2rem);
  letter-spacing: .12em;
  text-shadow: 0 0 0 transparent;
  transition: color 1s ease, text-shadow 1s ease, transform .4s ease;
}
.loaded .brand { color: var(--chrome); text-shadow: 0 0 22px rgba(40,241,227,.18), 0 12px 32px rgba(255,95,162,.12); }
.top-hint {
  font-family: var(--jp);
  color: rgba(244,247,250,.5);
  font-size: .74rem;
  letter-spacing: .22em;
  writing-mode: vertical-rl;
}

.droplet-nav {
  position: fixed;
  z-index: 12;
  right: 4.4vw;
  bottom: 6vh;
  display: flex;
  gap: .85rem;
  align-items: center;
}
.droplet {
  width: .72rem;
  height: .72rem;
  border-radius: 50%;
  display: block;
  background: radial-gradient(circle at 35% 28%, var(--pearl), var(--chrome) 28%, var(--steel) 64%, #080B12 100%);
  border: 1px solid rgba(201,211,220,.55);
  box-shadow: inset 0 -2px 5px rgba(5,7,11,.9), 0 0 13px rgba(40,241,227,.12);
  transition: transform .45s ease, box-shadow .45s ease, background .45s ease;
}
.droplet.active {
  background: radial-gradient(circle at 35% 28%, var(--pearl), var(--cyan) 30%, var(--blush) 68%, var(--violet));
  box-shadow: 0 0 20px rgba(40,241,227,.45), 0 0 30px rgba(255,95,162,.25);
}

.channels { position: relative; z-index: 2; }
.channel {
  position: relative;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 12vh 7vw 10vh;
  isolation: isolate;
  overflow: hidden;
}
.channel::before {
  content: attr(data-scene);
  position: absolute;
  right: 7vw;
  top: 14vh;
  font-family: var(--bebas);
  font-size: clamp(6rem, 18vw, 20rem);
  letter-spacing: -.02em;
  color: rgba(201, 211, 220, .035);
  z-index: -1;
}
.channel::after {
  content: "";
  position: absolute;
  width: 120vw;
  height: 32vh;
  left: -10vw;
  top: 42vh;
  background: linear-gradient(100deg, transparent 8%, rgba(201,211,220,.08), rgba(40,241,227,.06), transparent 78%);
  clip-path: polygon(0 35%, 78% 0, 100% 15%, 20% 100%);
  opacity: .7;
  z-index: -1;
}
.transmission {
  width: min(1180px, 100%);
  min-height: 64vh;
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 6vw, 6rem);
  align-items: center;
}
.intro-transmission { grid-template-columns: .85fr 1.15fr; }
.title-cluster { align-self: start; padding-top: 8vh; }
.pretitle, .scene-mark {
  margin: 0 0 1rem;
  font-family: var(--jp);
  color: rgba(201,211,220,.62);
  font-size: .78rem;
  letter-spacing: .26em;
  text-transform: lowercase;
}
.scene-mark {
  position: absolute;
  top: 18vh;
  left: 7vw;
  z-index: 3;
  color: rgba(40,241,227,.58);
}
h1, h2 {
  margin: 0;
  font-family: var(--bebas);
  font-weight: 400;
  line-height: .85;
  letter-spacing: .08em;
  text-transform: uppercase;
}
h1 {
  font-size: clamp(5rem, 15vw, 17rem);
  max-width: 6ch;
  background: linear-gradient(180deg, var(--pearl), var(--chrome) 36%, var(--steel) 62%, rgba(255,95,162,.72));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 22px 45px rgba(40,241,227,.08));
}
h2 { font-size: clamp(4rem, 10vw, 10rem); color: var(--chrome); text-shadow: 0 0 28px rgba(139,108,255,.16); }
p { color: rgba(244,247,250,.7); font-size: clamp(1rem, 1.55vw, 1.28rem); line-height: 1.8; max-width: 33rem; }
.kana {
  display: block;
  margin-bottom: 1rem;
  font-family: var(--jp);
  font-size: clamp(2rem, 4vw, 4.5rem);
  color: var(--blush);
  opacity: .8;
}
.side-label {
  position: absolute;
  top: 42vh;
  font-family: var(--jp);
  letter-spacing: .38em;
  color: rgba(244,247,250,.36);
  font-size: .78rem;
  writing-mode: vertical-rl;
}
.side-label.left { left: 3vw; }
.side-label.right { right: 3vw; }

.portal {
  position: relative;
  min-height: clamp(22rem, 48vh, 36rem);
  border: 1px solid rgba(201,211,220,.45);
  overflow: hidden;
  transform: translateZ(0);
  background: #05070B;
  box-shadow:
    inset 0 0 42px rgba(201,211,220,.1),
    inset 0 -60px 90px rgba(5,7,11,.84),
    0 0 0 1px rgba(244,247,250,.04),
    0 40px 120px rgba(0,0,0,.55),
    0 0 80px rgba(40,241,227,.08);
}
.oval { border-radius: 50% / 42%; }
.rounded { border-radius: 4rem 1.4rem 5rem 1.4rem; }
.vertical { min-height: 68vh; border-radius: 48% 48% 28% 28% / 18% 18% 42% 42%; }
.wide { grid-column: 1 / -1; min-height: 42vh; border-radius: 8rem; }
.portal::before {
  content: "";
  position: absolute;
  inset: -30%;
  background: conic-gradient(from 40deg, transparent, rgba(40,241,227,.3), transparent, rgba(255,95,162,.22), transparent, rgba(139,108,255,.22), transparent);
  animation: vesselDrift 14s ease-in-out infinite;
  mix-blend-mode: screen;
}
.portal::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(244,247,250,.18), transparent 18%, transparent 55%, rgba(201,211,220,.12) 56%, transparent 68%);
  clip-path: polygon(0 0, 88% 0, 63% 100%, 0 100%);
  transform: translateX(-105%);
  transition: transform 1.2s cubic-bezier(.2,.8,.2,1);
}
.portal.in-view::after, .loaded .intro-transmission .portal::after { transform: translateX(18%); }
.portal-glass {
  position: absolute;
  inset: 1px;
  border-radius: inherit;
  background:
    radial-gradient(ellipse at 68% 35%, rgba(40,241,227,.24), transparent 20%),
    radial-gradient(ellipse at 28% 68%, rgba(139,108,255,.22), transparent 28%),
    linear-gradient(150deg, rgba(38,52,69,.62), rgba(5,7,11,.84) 48%, rgba(201,211,220,.14));
}
.portal-glass.blush { background: radial-gradient(ellipse at 62% 55%, rgba(255,95,162,.36), transparent 24%), linear-gradient(150deg, rgba(5,7,11,.92), rgba(38,52,69,.74), rgba(139,108,255,.16)); }
.portal-glass.cyan { background: radial-gradient(ellipse at 40% 45%, rgba(40,241,227,.35), transparent 26%), radial-gradient(ellipse at 74% 64%, rgba(255,95,162,.18), transparent 20%), linear-gradient(150deg, rgba(5,7,11,.9), rgba(38,52,69,.72)); }
.portal-glass.after { background: radial-gradient(ellipse at 45% 50%, rgba(255,95,162,.28), transparent 27%), radial-gradient(ellipse at 62% 42%, rgba(40,241,227,.32), transparent 25%), linear-gradient(150deg, rgba(5,7,11,.88), rgba(38,52,69,.64)); }
.subtitle-ghost {
  position: absolute;
  left: 10%;
  bottom: 14%;
  padding: .55rem 1rem;
  border-left: 1px solid var(--cyan);
  font-family: var(--jp);
  color: rgba(244,247,250,.72);
  background: linear-gradient(90deg, rgba(5,7,11,.74), transparent);
  text-shadow: 0 18px 8px rgba(255,95,162,.16);
  transform: translateY(18px);
  opacity: .15;
  transition: opacity 1s ease, transform 1s ease;
}
.portal.in-view .subtitle-ghost, .loaded .intro-transmission .subtitle-ghost { opacity: 1; transform: translateY(0); }
.timecode {
  position: absolute;
  top: 9%;
  right: 10%;
  font-family: var(--space);
  color: rgba(201,211,220,.52);
  letter-spacing: .28em;
  font-size: .75rem;
}
.scanlines { position: absolute; inset: 0; background: repeating-linear-gradient(180deg, transparent 0 6px, rgba(244,247,250,.08) 7px, transparent 8px); animation: scanlineShimmer 1.8s steps(8) infinite; }
.fish, .fish-shadow, .fish-pair { position: absolute; pointer-events: none; }
.fish { width: clamp(8rem, 18vw, 18rem); filter: url(#liquidGlow); opacity: 0; z-index: 4; }
.loaded .fish-one { animation: fishIntro 3.2s cubic-bezier(.25,.75,.2,1) .25s forwards; }
.fish-shadow { width: 8rem; height: 2.2rem; border-radius: 50%; background: linear-gradient(90deg, transparent, rgba(40,241,227,.28), rgba(255,95,162,.18), transparent); filter: blur(8px); }
.shadow-a { top: 32%; left: 10%; animation: fishShadow 10s ease-in-out infinite; }
.shadow-b { bottom: 30%; right: 8%; animation: fishShadow 13s ease-in-out infinite reverse; }
.shadow-c { top: 45%; left: 35%; animation: fishShadow 12s ease-in-out infinite; }
.fish-pair::before, .fish-pair::after {
  content: "";
  position: absolute;
  width: 9rem;
  height: 2.4rem;
  border-radius: 50%;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--blush), transparent);
  filter: blur(7px);
  opacity: .45;
}
.fish-pair::before { left: 12vw; top: 18vh; animation: fishShadow 9s ease-in-out infinite; }
.fish-pair::after { left: 25vw; top: 44vh; animation: fishShadow 11s ease-in-out infinite reverse; }
.caption-bead, .lower-whisper, .caption-strip {
  position: absolute;
  right: 0;
  bottom: 4vh;
  color: var(--pearl);
  font-family: var(--jp);
  font-size: .92rem;
  letter-spacing: .16em;
  padding: .9rem 1.1rem;
  border: 1px solid rgba(201,211,220,.38);
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(38,52,69,.8), rgba(5,7,11,.5));
  box-shadow: 0 0 28px rgba(255,95,162,.1);
}
.lower-whisper { right: 12%; bottom: 7%; color: var(--blush); }
.caption-strip { left: 50%; right: auto; bottom: 5%; transform: translateX(-50%); color: var(--cyan); }
.copy-block { position: relative; z-index: 2; }
.split-transmission .portal { transform: rotate(-2deg); }
.reel-transmission { grid-template-columns: .85fr 1fr; }
.reel-copy { align-self: end; padding-bottom: 10vh; }
.soft-transmission { grid-template-columns: 1fr; text-align: center; }
.centered-copy { justify-self: center; }
.centered-copy p { margin-left: auto; margin-right: auto; }
.final-transmission { grid-template-columns: 1.2fr .8fr; }
.final-copy { align-self: end; padding-bottom: 8vh; }
.ripple-ring { position: absolute; border: 1px solid rgba(40,241,227,.3); border-radius: 50%; inset: 28%; animation: ringPulse 5s ease-in-out infinite; }
.ripple-ring.two { inset: 18%; animation-delay: 1.5s; border-color: rgba(255,95,162,.22); }
.z-rail { position: absolute; height: 1px; background: linear-gradient(90deg, transparent, var(--chrome), transparent); }
.rail-top { top: 21vh; left: 22vw; right: 8vw; }
.rail-diagonal { width: 75vw; top: 62vh; left: 12vw; transform: rotate(-23deg); }
.magnetic { will-change: transform; }

@keyframes driftLines { to { transform: rotate(-8deg) translateY(160px); } }
@keyframes rippleField { 50% { transform: scale(1.05) rotate(1deg); opacity: .52; } }
@keyframes horizonScan { 50% { opacity: .42; filter: blur(1px); } }
@keyframes zCurrent { from { translate: -20vw 0; } to { translate: 120vw 0; } }
@keyframes vesselDrift { 50% { transform: rotate(12deg) scale(1.08); opacity: .7; } }
@keyframes scanlineShimmer { 50% { transform: translateY(12px); opacity: .45; } }
@keyframes fishIntro { 0% { opacity: 0; transform: translate(-28vw, 58vh) rotate(-14deg) scale(.7); } 18% { opacity: 1; } 72% { opacity: 1; } 100% { opacity: 0; transform: translate(104vw, 3vh) rotate(-14deg) scale(1.04); } }
@keyframes fishShadow { 50% { transform: translate(42%, -28%) rotate(-8deg); opacity: .75; } }
@keyframes ringPulse { 0%, 100% { transform: scale(.6); opacity: 0; } 45% { opacity: .75; } 75% { transform: scale(1.35); opacity: 0; } }

@media (max-width: 760px) {
  .masthead { top: 3vh; }
  .top-hint { display: none; }
  .channel { padding: 14vh 6vw 12vh; }
  .transmission, .intro-transmission, .reel-transmission, .final-transmission { grid-template-columns: 1fr; gap: 2rem; }
  .title-cluster { padding-top: 3vh; }
  h1 { max-width: 8ch; }
  .portal, .vertical { min-height: 48vh; }
  .wide { min-height: 40vh; border-radius: 3rem; }
  .side-label { opacity: .45; }
  .droplet-nav { right: 50%; transform: translateX(50%); bottom: 3vh; }
  .caption-bead, .lower-whisper, .caption-strip { position: relative; inset: auto; justify-self: end; transform: none; }
}