:root {
  /* Design typography tokens: Space Grotesk** Grotes* in 600/700 weights */
  --void: #05040A;
  --graphite: #141622;
  --cyan: #00F5FF;
  --violet: #A100FF;
  --lime: #B6FF00;
  --magenta: #FF2BD6;
  --smoke: #A7A9B7;
  --title: 'Space Grotesk', 'Arial Black', system-ui, sans-serif;
  --body: 'Sora', Inter, system-ui, sans-serif;
  --mark: 'Rajdhani', 'Arial Narrow', system-ui, sans-serif;
}

* { box-sizing: border-box; }

html {
  min-height: 100%;
  background: var(--void);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100%;
  overflow-x: hidden;
  color: var(--smoke);
  background:
    radial-gradient(circle at 72% 8%, rgba(161, 0, 255, 0.17), transparent 34rem),
    radial-gradient(circle at 14% 34%, rgba(0, 245, 255, 0.11), transparent 29rem),
    linear-gradient(180deg, #05040A 0%, #090812 38%, #05040A 100%);
  font-family: var(--body);
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 5;
}

body::before {
  opacity: 0.22;
  background-image:
    linear-gradient(rgba(0,245,255,0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,43,214,0.035) 1px, transparent 1px);
  background-size: 74px 74px, 112px 112px;
  mix-blend-mode: screen;
}

body::after {
  background: radial-gradient(ellipse at center, transparent 0 48%, rgba(5,4,10,0.82) 100%);
}

.signal-snow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 4;
  opacity: 0.25;
  background:
    repeating-radial-gradient(circle at 13% 27%, rgba(255,255,255,0.42) 0 1px, transparent 1px 15px),
    repeating-radial-gradient(circle at 83% 64%, rgba(0,245,255,0.32) 0 1px, transparent 1px 21px);
  animation: snowDrift 9s steps(2, end) infinite;
}

.cursor-glow {
  position: fixed;
  width: 28rem;
  height: 28rem;
  border-radius: 50%;
  left: 0;
  top: 0;
  transform: translate3d(-50%, -50%, 0);
  pointer-events: none;
  z-index: 3;
  opacity: 0.42;
  background: radial-gradient(circle, rgba(0,245,255,0.24), rgba(161,0,255,0.1) 34%, transparent 66%);
  filter: blur(14px);
}

.transmission {
  position: relative;
  isolation: isolate;
}

.frequency-line {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 400vh;
  z-index: 2;
  pointer-events: none;
  overflow: visible;
}

.frequency-line path {
  fill: none;
  stroke: var(--cyan);
  stroke-width: 3;
  stroke-dasharray: 16 23;
  stroke-linecap: round;
  filter: drop-shadow(0 0 10px rgba(0,245,255,0.82));
  opacity: 0.83;
}

.chamber {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  padding: clamp(2rem, 5vw, 5rem);
  display: grid;
  align-items: center;
  z-index: 1;
}

.chamber::before {
  content: attr(data-chamber);
  position: absolute;
  right: clamp(1.2rem, 4vw, 4rem);
  top: clamp(1rem, 4vw, 3rem);
  font-family: var(--mark);
  font-size: clamp(5rem, 15vw, 16rem);
  font-weight: 600;
  line-height: 1;
  color: rgba(167, 169, 183, 0.035);
  letter-spacing: -0.08em;
}

.chamber-open {
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 42rem);
  background:
    linear-gradient(124deg, rgba(5,4,10,0.2), rgba(20,22,34,0.46) 58%, rgba(5,4,10,0.98)),
    radial-gradient(circle at 84% 48%, rgba(0,245,255,0.18), transparent 29rem);
}

.wire-label,
.frequency-tag,
.final-line,
.taped-note,
.side-fragment,
.instrument b {
  font-family: var(--mark);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--cyan);
  font-weight: 600;
}

.label-top {
  position: absolute;
  top: 7vh;
  left: 9vw;
  padding: 0.45rem 0.7rem;
  background: rgba(20, 22, 34, 0.72);
  border-left: 2px solid var(--lime);
  transform: rotate(-3deg);
}

.receiver-field {
  position: absolute;
  right: -8vw;
  top: 0;
  bottom: 0;
  width: min(64vw, 58rem);
  display: grid;
  place-items: center;
  opacity: 0;
  transform: translateX(6vw) scale(0.94);
  animation: receiverWake 2.7s ease forwards 0.35s;
}

.crystal-receiver {
  width: min(92vh, 48rem);
  max-width: 100%;
  overflow: visible;
  filter: drop-shadow(0 0 34px rgba(0,245,255,0.33)) drop-shadow(0 0 72px rgba(161,0,255,0.24));
  transform-origin: 56% 50%;
  animation: mineralBreath 7.4s ease-in-out infinite;
}

.halo { fill: url(#innerBloom); }
.slab { fill: rgba(20,22,34,0.78); stroke: url(#edgeCyan); stroke-width: 5; }
.facet { stroke: rgba(0,245,255,0.55); stroke-width: 2.5; fill: rgba(161,0,255,0.15); }
.f2, .f5 { fill: rgba(0,245,255,0.09); }
.f3 { fill: rgba(255,43,214,0.1); }
.needle, .antenna, .scratch { fill: none; stroke: var(--lime); stroke-width: 4; stroke-linecap: round; opacity: 0.84; }
.scratch { stroke: var(--smoke); stroke-width: 2; opacity: 0.43; }
.ember { fill: var(--lime); filter: drop-shadow(0 0 8px var(--lime)); animation: emberPulse 1.7s infinite; }
.e2 { animation-delay: 0.55s; fill: var(--magenta); filter: drop-shadow(0 0 8px var(--magenta)); }
.e3 { animation-delay: 1.1s; fill: var(--cyan); filter: drop-shadow(0 0 8px var(--cyan)); }

.title-cluster {
  position: relative;
  max-width: 54rem;
  z-index: 2;
  margin-left: clamp(0rem, 5vw, 4rem);
  transform: translateY(3vh);
  animation: titleLock 1.7s ease forwards;
}

.kicker {
  margin: 0 0 1rem;
  font-family: var(--mark);
  text-transform: uppercase;
  letter-spacing: 0.28em;
  color: var(--lime);
}

h1,
h2 {
  font-family: var(--title);
  color: #fff;
  margin: 0;
  letter-spacing: -0.07em;
  line-height: 0.88;
}

h1 {
  font-size: clamp(4.4rem, 14vw, 14rem);
  text-shadow: 0 0 18px rgba(0,245,255,0.42), 0.06em 0 rgba(255,43,214,0.26), -0.04em 0 rgba(0,245,255,0.22);
}

h1 span { color: var(--magenta); }

h2 {
  font-size: clamp(3rem, 8vw, 8rem);
  max-width: 12ch;
}

.lead,
.pit-copy p,
.garden-copy p,
.pool-copy p {
  font-size: clamp(1rem, 1.75vw, 1.45rem);
  line-height: 1.65;
  max-width: 38rem;
  color: var(--smoke);
}

.taped-note {
  position: absolute;
  left: 52vw;
  bottom: 13vh;
  z-index: 3;
  max-width: 16rem;
  padding: 0.85rem 1rem;
  color: var(--void);
  background: linear-gradient(90deg, var(--lime), #e8ff8a);
  box-shadow: 0 0 28px rgba(182,255,0,0.22);
  transform: rotate(6deg);
}

.chamber-pit {
  background: radial-gradient(circle at 22% 55%, rgba(255,43,214,0.13), transparent 31rem);
}

.ribbon {
  position: absolute;
  width: 86vw;
  height: 16rem;
  border: 1px solid rgba(0,245,255,0.32);
  border-radius: 42% 58% 61% 39% / 50% 37% 63% 50%;
  filter: blur(0.2px) drop-shadow(0 0 22px rgba(0,245,255,0.28));
  opacity: 0.62;
}

.ribbon-one {
  left: -14vw;
  top: 18vh;
  transform: rotate(-14deg);
  background: linear-gradient(90deg, transparent, rgba(0,245,255,0.12), rgba(161,0,255,0.18), transparent);
}

.ribbon-two {
  right: -20vw;
  bottom: 16vh;
  transform: rotate(17deg);
  background: linear-gradient(90deg, transparent, rgba(255,43,214,0.16), rgba(0,245,255,0.1), transparent);
}

.pit-copy {
  position: relative;
  margin-left: 12vw;
  margin-top: -8vh;
  z-index: 3;
}

.frequency-tag {
  display: inline-block;
  margin-bottom: 1.1rem;
  padding: 0.34rem 0.6rem;
  border: 1px solid rgba(0,245,255,0.44);
  background: rgba(5,4,10,0.7);
}

.cable-map {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.node {
  position: absolute;
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 0 rgba(182,255,0,0.45), 0 0 18px var(--lime);
  pointer-events: auto;
  animation: nodePing 2.8s infinite;
}

.node:nth-child(1) { left: 18%; top: 24%; }
.node:nth-child(2) { left: 67%; top: 33%; animation-delay: 0.4s; background: var(--cyan); box-shadow: 0 0 18px var(--cyan); }
.node:nth-child(3) { left: 51%; top: 72%; animation-delay: 1.1s; background: var(--magenta); box-shadow: 0 0 18px var(--magenta); }
.node:nth-child(4) { left: 82%; top: 64%; animation-delay: 1.8s; }

.side-fragment {
  position: absolute;
  right: 8vw;
  bottom: 20vh;
  width: 15rem;
  color: var(--magenta);
  transform: rotate(10deg);
}

.chamber-garden {
  grid-template-columns: minmax(18rem, 0.75fr) minmax(20rem, 1.25fr);
  gap: clamp(2rem, 5vw, 6rem);
  background: radial-gradient(circle at 74% 50%, rgba(0,245,255,0.12), transparent 34rem), linear-gradient(180deg, rgba(20,22,34,0.28), transparent);
}

.garden-copy {
  position: relative;
  z-index: 3;
  align-self: start;
  margin-top: 18vh;
}

.instrumentarium {
  position: relative;
  height: min(70vh, 45rem);
  z-index: 3;
}

.instrument {
  position: absolute;
  width: clamp(12rem, 20vw, 18rem);
  height: clamp(13rem, 22vw, 20rem);
  transform-origin: 50% 70%;
  transition: transform 180ms ease, filter 180ms ease;
  filter: drop-shadow(0 0 20px rgba(0,245,255,0.28));
}

.instrument b {
  position: absolute;
  bottom: 0;
  left: 1rem;
  color: var(--smoke);
}

.quartz-mic { left: 2%; top: 16%; transform: rotate(-10deg); }
.quartz-mic .stem { position: absolute; left: 48%; top: 38%; width: 0.5rem; height: 45%; background: var(--graphite); border: 1px solid var(--cyan); }
.quartz-mic .head { position: absolute; left: 28%; top: 4%; width: 42%; height: 46%; clip-path: polygon(50% 0, 84% 18%, 100% 62%, 58% 100%, 12% 76%, 0 28%); background: linear-gradient(135deg, rgba(0,245,255,0.34), rgba(161,0,255,0.42)); border: 2px solid var(--cyan); }
.quartz-mic .wire { position: absolute; left: 52%; top: 80%; width: 50%; height: 32%; border-bottom: 3px solid var(--magenta); border-radius: 50%; }

.prism-speaker { right: 10%; top: 3%; transform: rotate(8deg); }
.prism-speaker .box { position: absolute; inset: 18% 12% 24%; clip-path: polygon(12% 0, 100% 17%, 82% 100%, 0 80%); background: rgba(20,22,34,0.9); border: 2px solid var(--violet); }
.prism-speaker .cone { position: absolute; left: 34%; top: 31%; width: 40%; height: 40%; border-radius: 50%; border: 2px solid var(--cyan); box-shadow: inset 0 0 24px rgba(0,245,255,0.36); }
.prism-speaker .crack { position: absolute; left: 56%; top: 14%; width: 2px; height: 58%; background: var(--lime); transform: rotate(18deg); box-shadow: 0 0 10px var(--lime); }

.insect-wave { left: 34%; bottom: 6%; transform: rotate(-2deg); }
.insect-wave .body { position: absolute; left: 40%; top: 32%; width: 24%; height: 36%; border-radius: 50%; background: linear-gradient(var(--magenta), var(--violet)); box-shadow: 0 0 20px rgba(255,43,214,0.45); }
.insect-wave .wing { position: absolute; top: 16%; width: 38%; height: 42%; border: 2px solid var(--cyan); border-radius: 64% 36% 62% 38%; background: rgba(0,245,255,0.08); }
.insect-wave .left { left: 10%; transform: rotate(-23deg); }
.insect-wave .right { right: 4%; transform: rotate(23deg); }

.wave-corridor {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 14vh;
  width: 100%;
  height: 16rem;
  opacity: 0.75;
}

.wave-corridor path {
  fill: none;
  stroke: var(--cyan);
  stroke-width: 3;
  stroke-dasharray: 11 20;
  filter: drop-shadow(0 0 12px var(--cyan));
  animation: crawl 5.5s linear infinite;
}

.wave-corridor path + path { stroke: var(--magenta); animation-duration: 7s; opacity: 0.58; }

.chamber-pool {
  place-items: center;
  text-align: center;
  min-height: 105vh;
  background: radial-gradient(ellipse at center bottom, rgba(0,245,255,0.16), transparent 34rem), #05040A;
}

.pool-glow {
  position: absolute;
  bottom: 11vh;
  width: min(72vw, 48rem);
  height: 9rem;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(0,245,255,0.45), rgba(161,0,255,0.18) 36%, transparent 72%);
  filter: blur(18px);
  animation: poolPulse 5.8s ease-in-out infinite;
}

.pool-copy {
  position: relative;
  z-index: 3;
  display: grid;
  justify-items: center;
}

.pool-copy h2 { max-width: 14ch; }
.pool-copy p { max-width: 31rem; }

.seal {
  position: absolute;
  top: 14vh;
  left: 17vw;
  width: 8rem;
  height: 8rem;
  border: 2px solid var(--violet);
  border-radius: 50%;
  box-shadow: 0 0 26px rgba(161,0,255,0.44), inset 0 0 28px rgba(161,0,255,0.18);
}

.seal span {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 88%;
  height: 2px;
  background: var(--cyan);
  transform-origin: left center;
}
.seal span:nth-child(1) { transform: rotate(8deg); }
.seal span:nth-child(2) { transform: rotate(126deg); }
.seal span:nth-child(3) { transform: rotate(244deg); background: var(--magenta); }

.final-line {
  position: absolute;
  bottom: 6vh;
  color: var(--lime);
  text-shadow: 0 0 14px rgba(182,255,0,0.6);
}

.interactive-shard {
  transition: transform 160ms ease, filter 160ms ease, color 160ms ease, opacity 160ms ease;
  will-change: transform;
}

.interactive-shard.is-hot,
.interactive-shard:hover {
  filter: drop-shadow(0 0 12px rgba(0,245,255,0.68)) drop-shadow(4px 0 0 rgba(255,43,214,0.35)) drop-shadow(-3px 0 0 rgba(182,255,0,0.28));
  transform: scale(1.035) rotate(var(--gain-rotation, 0deg));
}

.chamber.is-tuned h2,
.chamber.is-tuned h1 {
  text-shadow: 0 0 16px rgba(0,245,255,0.54), 0.05em 0 rgba(255,43,214,0.22);
}

@keyframes receiverWake {
  0% { opacity: 0; transform: translateX(7vw) scale(0.88); filter: brightness(0.4); }
  66% { opacity: 0.85; }
  100% { opacity: 1; transform: translateX(0) scale(1); filter: brightness(1); }
}

@keyframes titleLock {
  from { opacity: 0; transform: translateY(8vh); filter: blur(12px); }
  to { opacity: 1; transform: translateY(3vh); filter: blur(0); }
}

@keyframes mineralBreath {
  0%, 100% { transform: rotate(-1.5deg) scale(1); }
  45% { transform: rotate(1deg) scale(1.025); }
  58% { transform: rotate(0.2deg) scale(0.995); }
}

@keyframes emberPulse {
  0%, 100% { opacity: 0.45; transform: scale(0.75); }
  48% { opacity: 1; transform: scale(1.25); }
}

@keyframes nodePing {
  0% { box-shadow: 0 0 0 0 rgba(182,255,0,0.48), 0 0 18px currentColor; }
  100% { box-shadow: 0 0 0 2rem rgba(182,255,0,0), 0 0 22px currentColor; }
}

@keyframes crawl {
  to { stroke-dashoffset: -210; }
}

@keyframes poolPulse {
  0%, 100% { transform: scaleX(0.92); opacity: 0.54; }
  50% { transform: scaleX(1.1); opacity: 0.9; }
}

@keyframes snowDrift {
  0%, 100% { transform: translate(0, 0); }
  25% { transform: translate(1.4rem, -0.8rem); }
  50% { transform: translate(-0.6rem, 1rem); }
  75% { transform: translate(0.9rem, 0.4rem); }
}

@media (max-width: 860px) {
  .chamber-open,
  .chamber-garden { grid-template-columns: 1fr; }
  .receiver-field { opacity: 0.65; right: -33vw; width: 105vw; }
  .title-cluster { margin-left: 0; }
  .taped-note { left: 8vw; bottom: 7vh; }
  .pit-copy { margin-left: 0; }
  .side-fragment { right: 8vw; bottom: 8vh; }
  .instrumentarium { height: 60vh; }
  .quartz-mic { left: 0; top: 10%; }
  .prism-speaker { right: -4%; top: 1%; }
  .insect-wave { left: 25%; bottom: 4%; }
}