:root {
  color-scheme: dark;
  --paper: #101318;
  --ink: #f1f2e9;
  --acid: #d8ff4f;
  --coral: #ff6a4f;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
  scroll-behavior: smooth;
  scroll-snap-type: none;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
}

button {
  font: inherit;
  cursor: pointer;
}

.scroll-world {
  position: relative;
}

.scroll-panel {
  --scene-opacity: 1;
  --scene-rotate: 0deg;
  --scene-scale: 1;
  --scene-shift: 0vh;
  --scene-spin: 0deg;
  --build-scale: 0.45;
  --build-opacity: 0.42;
  --build-clip-horizontal: inset(0 80% 0 0);
  --sweep-shift: 0vw;
  position: relative;
  display: grid;
  min-height: 100svh;
  height: 100svh;
  place-items: center;
  overflow: hidden;
  isolation: isolate;
  place-content: center;
}

.scroll-panel--orbit {
  --accent: var(--coral);
  --line: rgba(241, 242, 233, 0.66);
  background:
    radial-gradient(circle at 50% 50%, rgba(255, 106, 79, 0.16), transparent 20%),
    radial-gradient(circle at 50% 50%, rgba(216, 255, 79, 0.06), transparent 48%),
    #101318;
}

.scroll-panel--sweep {
  --accent: var(--acid);
  --line: rgba(216, 255, 79, 0.86);
  background:
    radial-gradient(circle at 50% 50%, rgba(216, 255, 79, 0.12), transparent 22%),
    linear-gradient(135deg, #121a22, #19252b);
}

.scroll-panel--field {
  --accent: var(--coral);
  --line: rgba(241, 242, 233, 0.72);
  background:
    radial-gradient(circle at 50% 50%, rgba(255, 106, 79, 0.12), transparent 28%),
    #151b1d;
}

.scroll-panel--pulse {
  --accent: var(--acid);
  --line: rgba(255, 106, 79, 0.86);
  background:
    radial-gradient(circle at 50% 50%, rgba(216, 255, 79, 0.1), transparent 24%),
    #1b171a;
}

.scroll-art {
  position: relative;
  width: min(78vw, 40rem, 100svh);
  aspect-ratio: 1;
  opacity: var(--scene-opacity);
  transform: translate3d(0, var(--scene-shift), 0) rotate(var(--scene-rotate)) scale(var(--scene-scale));
  transform-origin: center;
  transition: opacity 180ms linear;
  will-change: transform, opacity;
}

.scroll-art--orbit {
  border-radius: 50%;
}

.orbit-core,
.orbit-ring {
  position: absolute;
  display: block;
  border-radius: 50%;
}

.orbit-core {
  inset: 39%;
  z-index: 2;
  background: var(--accent);
  opacity: var(--build-opacity);
  box-shadow: 0 0 0 1.4rem rgba(255, 106, 79, 0.15), 0 0 4rem rgba(255, 106, 79, 0.28);
  transform: scale(var(--build-scale));
}

.orbit-ring {
  border: 2.5px solid var(--line);
  opacity: var(--build-opacity);
  box-shadow: 0 0 1.2rem color-mix(in srgb, var(--line) 30%, transparent);
}

.orbit-ring--one {
  inset: 10%;
  transform: rotate(calc(24deg + var(--scene-spin))) scale(var(--build-scale)) scaleY(0.36);
}

.orbit-ring--two {
  inset: 23%;
  transform: rotate(calc(-54deg - var(--scene-spin))) scale(var(--build-scale)) scaleY(0.55);
}

.orbit-ring--three {
  inset: 2%;
  transform: rotate(calc(72deg + var(--scene-spin))) scale(var(--build-scale)) scaleY(0.18);
}

.scroll-art--sweep {
  width: 100vw;
  max-width: 90rem;
  height: min(55vh, 30rem);
  aspect-ratio: auto;
}

.sweep-line,
.sweep-core {
  position: absolute;
  display: block;
}

.sweep-line {
  left: -12%;
  width: 124%;
  height: 2px;
  background: var(--line);
  clip-path: var(--build-clip-horizontal);
  opacity: var(--build-opacity);
  box-shadow: 0 0 1.5rem rgba(216, 255, 79, 0.65);
  transform-origin: center;
}

.sweep-line--one {
  top: 28%;
  transform: translateX(var(--sweep-shift)) rotate(-12deg);
}

.sweep-line--two {
  top: 50%;
  transform: translateX(calc(var(--sweep-shift) * -1)) rotate(7deg);
}

.sweep-line--three {
  top: 72%;
  transform: translateX(var(--sweep-shift)) rotate(-4deg);
}

.sweep-core {
  top: 50%;
  left: 50%;
  width: clamp(7rem, 18vw, 13rem);
  aspect-ratio: 1;
  border: 2px solid var(--line);
  border-radius: 50%;
  background: var(--accent);
  opacity: var(--build-opacity);
  box-shadow: 0 0 0 1rem rgba(216, 255, 79, 0.1), 0 0 3rem rgba(216, 255, 79, 0.4);
  transform: translate(-50%, -50%) rotate(var(--scene-spin)) scale(var(--build-scale));
}

.scroll-art--field {
  width: 100vw;
  height: 100vh;
  aspect-ratio: auto;
  opacity: var(--build-opacity);
  background-image: linear-gradient(rgba(241, 242, 233, 0.12) 1px, transparent 1px), linear-gradient(90deg, rgba(241, 242, 233, 0.12) 1px, transparent 1px);
  background-position: center;
  background-size: clamp(4rem, 9vw, 8rem) clamp(4rem, 9vw, 8rem);
}

.field-node {
  position: absolute;
  display: block;
  width: clamp(2.5rem, 7vw, 6rem);
  aspect-ratio: 1;
  border: 2px solid var(--line);
  border-radius: 50%;
  background: var(--accent);
  opacity: var(--build-opacity);
  box-shadow: 0 0 0 0.8rem rgba(241, 242, 233, 0.08);
  transform: translate(-50%, -50%) scale(var(--build-scale));
}

.field-node--one {
  top: 24%;
  left: 22%;
}

.field-node--two {
  top: 34%;
  left: 72%;
}

.field-node--three {
  top: 71%;
  left: 34%;
}

.field-node--four {
  top: 68%;
  left: 79%;
}

.scroll-art--pulse {
  display: grid;
  width: min(78vw, 42rem, 100svh);
  place-items: center;
}

.pulse-core,
.pulse-ring {
  position: absolute;
  display: block;
  border-radius: 50%;
}

.pulse-core {
  width: 13%;
  aspect-ratio: 1;
  background: var(--acid);
  opacity: var(--build-opacity);
  box-shadow: 0 0 3rem rgba(216, 255, 79, 0.65);
  transform: scale(var(--build-scale));
}

.pulse-ring {
  border: 2px solid var(--line);
  opacity: var(--build-opacity);
  transform: scale(var(--build-scale)) rotate(var(--scene-spin));
}

.pulse-ring--one {
  width: 34%;
  aspect-ratio: 1;
}

.pulse-ring--two {
  width: 62%;
  aspect-ratio: 1;
}

.pulse-ring--three {
  width: 92%;
  aspect-ratio: 1;
}

.scroll-progress {
  position: fixed;
  top: 50%;
  right: clamp(1rem, 3vw, 2.5rem);
  z-index: 10;
  display: grid;
  gap: 0.65rem;
  transform: translateY(-50%);
  mix-blend-mode: difference;
}

.scroll-progress button {
  width: 0.65rem;
  height: 0.65rem;
  padding: 0;
  border: 1px solid var(--white);
  border-radius: 50%;
  background: transparent;
  opacity: 0.72;
  transition: background 180ms ease, opacity 180ms ease, transform 180ms ease;
}

.scroll-progress button[data-active] {
  background: var(--white);
  opacity: 1;
  transform: scale(1.45);
}

.scroll-next {
  position: fixed;
  right: 50%;
  bottom: clamp(1.4rem, 4vw, 3rem);
  z-index: 10;
  width: 1.25rem;
  height: 1.25rem;
  padding: 0;
  border: 0;
  border-right: 1px solid var(--white);
  border-bottom: 1px solid var(--white);
  background: transparent;
  transform: translateX(50%) rotate(45deg);
  mix-blend-mode: difference;
  transition: opacity 180ms ease, transform 180ms ease;
}

.scroll-next[data-last] {
  transform: translateX(50%) rotate(225deg);
}

.scroll-progress button:focus-visible,
.scroll-next:focus-visible {
  outline: 2px solid var(--white);
  outline-offset: 0.35rem;
}

@media (max-width: 600px) {
  .scroll-art {
    width: 86vw;
  }

  .scroll-art--sweep {
    width: 150vw;
  }

  .scroll-progress {
    right: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .scroll-art {
    transition: none;
  }
}