:root {
  color-scheme: dark;
  --void: #070707;
  --bone: #d5d0c4;
  --dim: rgba(213, 208, 196, 0.12);
  --signal: #a93226;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  overscroll-behavior: none;
  background: var(--void);
}

body {
  position: fixed;
  inset: 0;
  height: 100dvh;
  color: var(--bone);
  font-family: Georgia, "Times New Roman", serif;
  touch-action: none;
  user-select: none;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
}

.void {
  position: relative;
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  overflow: hidden;
  isolation: isolate;
}

.void::before,
.void::after {
  position: absolute;
  z-index: -1;
  content: "";
  background: var(--dim);
}

.void::before {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
}

.void::after {
  top: 50%;
  right: 0;
  left: 0;
  height: 1px;
}

.relic {
  position: relative;
  width: clamp(250px, 48vmin, 560px);
  aspect-ratio: 1;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 50%;
  color: var(--bone);
  background: transparent;
  cursor: crosshair;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.relic::before {
  position: absolute;
  inset: 9%;
  border: 1px solid transparent;
  border-radius: 50%;
  content: "";
  transition: border-color 700ms ease, transform 700ms ease;
}

.relic:hover::before,
.relic:focus-visible::before {
  border-color: var(--dim);
  transform: scale(1.04);
}

.relic:focus-visible {
  outline: 1px solid rgba(213, 208, 196, 0.24);
  outline-offset: 14px;
}

.sigil {
  width: 100%;
  height: 100%;
  display: block;
  overflow: visible;
}

.orbit {
  fill: none;
}

.orbit {
  stroke: currentColor;
  stroke-width: 1;
  opacity: 0.1;
}

.orbit-outer {
  stroke-dasharray: 1 12;
}

.orbit-inner {
  stroke-dasharray: 2 9;
}

.core {
  fill: currentColor;
  opacity: 0.5;
}

.rotor {
  transform-box: view-box;
  transform-origin: center;
  animation: head-chases-tail 70s linear infinite;
}

.ouroboros {
  fill: currentColor;
  transition: fill 500ms ease;
  filter: drop-shadow(0 0 5px rgba(213, 208, 196, 0.14));
}

.relic.is-complete {
  color: var(--signal);
}

.relic.is-complete .core {
  transform: scale(2.5);
  transform-origin: center;
}

.word {
  position: absolute;
  bottom: calc(clamp(34px, 6vh, 72px) + env(safe-area-inset-bottom));
  left: 50%;
  margin: 0;
  color: var(--bone);
  font-size: 12px;
  font-style: italic;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 8px);
  transition: opacity 500ms ease, transform 500ms ease;
}

.word.is-visible {
  opacity: 0.66;
  transform: translate(-50%, 0);
}

.coordinates {
  position: absolute;
  top: calc(24px + env(safe-area-inset-top));
  right: calc(24px + env(safe-area-inset-right));
  display: flex;
  gap: 9px;
  color: var(--bone);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 9px;
  opacity: 0.14;
  pointer-events: none;
}

@keyframes head-chases-tail {
  to {
    transform: rotate(-360deg);
  }
}

@media (max-width: 600px) {
  .relic {
    width: min(76vw, 58dvh, 340px);
  }

  .coordinates {
    top: calc(18px + env(safe-area-inset-top));
    right: calc(18px + env(safe-area-inset-right));
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}