/* Document-anchored ASCII sky and lunar identity mark. */
.ambient-sky {
  position: absolute;
  inset: 0 0 auto;
  z-index: 0;
  height: clamp(36rem, 52vw, 46rem);
  overflow: hidden;
  background:
    radial-gradient(circle at 89% 12%, rgba(155, 206, 255, 0.1), transparent 24rem),
    radial-gradient(ellipse at 52% -10%, rgba(72, 125, 184, 0.08), transparent 60%);
  mask-image: linear-gradient(to bottom, #000 0%, #000 54%, rgba(0, 0, 0, 0.75) 70%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, #000 54%, rgba(0, 0, 0, 0.75) 70%, transparent 100%);
  pointer-events: none;
  user-select: none;
}

.ambient-page-stars {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 0;
  width: 100%;
  overflow: hidden;
  pointer-events: none;
  user-select: none;
}

.ambient-page-star {
  position: absolute;
  top: var(--page-star-y);
  left: var(--page-star-x);
  color: rgba(199, 229, 255, 0.9);
  font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  line-height: 1;
  opacity: var(--star-opacity, 0.1);
  text-shadow: 0 0 6px rgba(190, 226, 255, 0.2);
  transform: translate(-50%, -50%);
}

.ambient-page-star.is-flickering {
  animation: ambient-page-star-flicker var(--flicker-duration, 11s) var(--flicker-delay, 0s) ease-in-out infinite;
}

.ambient-stars {
  position: absolute;
  inset: 0;
}

.ambient-star {
  position: absolute;
  top: var(--star-y);
  left: var(--star-x);
  color: rgba(199, 229, 255, 0.22);
  font: 7px/1 "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  animation: ambient-star-breathe 9s var(--star-delay) ease-in-out infinite;
}

.ambient-star.is-major {
  color: rgba(218, 239, 255, 0.3);
  font-size: 8px;
}

.lunar-lockup {
  position: absolute;
  top: clamp(4.5rem, 6.4vw, 5.8rem);
  right: 0;
  width: clamp(22rem, 36vw, 32.25rem);
  aspect-ratio: 516 / 588;
  color: rgba(199, 229, 255, 0.46);
  font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
}

.lunar-orbit {
  display: none;
}

.lunar-reach-canvas {
  position: absolute;
  inset: 0 0 auto auto;
  display: block;
  width: 100%;
  height: 100%;
  opacity: 0.88;
  filter: drop-shadow(0 0 13px rgba(109, 176, 237, 0.08));
  mask-image: linear-gradient(transparent 0%, #000 16%, #000 84%, transparent 100%);
  -webkit-mask-image: linear-gradient(transparent 0%, #000 16%, #000 84%, transparent 100%);
}

.lunar-meta {
  position: absolute;
  z-index: 1;
  top: 3.35rem;
  right: 1.4rem;
  display: grid;
  justify-items: end;
  gap: 0.22rem;
  color: rgba(199, 229, 255, 0.52);
  font-size: clamp(6px, 0.5vw, 8px);
  letter-spacing: 0.13em;
  line-height: 1.2;
  text-transform: uppercase;
}

.lunar-age {
  color: rgba(169, 189, 213, 0.36);
  letter-spacing: 0.08em;
}

.lunar-ascii-mark {
  display: none;
}

.lunar-meter {
  position: absolute;
  z-index: 1;
  right: 1.4rem;
  bottom: 4.6rem;
  margin: 0;
  color: rgba(169, 189, 213, 0.38);
  font: clamp(6px, 0.48vw, 8px)/1 "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.08em;
}

.lunar-bearing {
  position: absolute;
  z-index: 1;
  bottom: 4.5rem;
  left: 7.6rem;
  color: rgba(169, 189, 213, 0.24);
  font-size: clamp(5px, 0.42vw, 7px);
  letter-spacing: 0.12em;
}

.ambient-wind-current {
  position: absolute;
  top: var(--wind-top, 5rem);
  left: var(--wind-left, 12%);
  width: clamp(15rem, 28vw, 24rem);
  height: 4.75rem;
  mask-image: linear-gradient(90deg, transparent 0%, #000 9%, #000 91%, transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 9%, #000 91%, transparent 100%);
}

.ambient-wind-current > span {
  position: absolute;
  color: rgba(211, 232, 255, 0.82);
  font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  font-size: clamp(6px, 0.54vw, 8px);
  font-variant-ligatures: none;
  line-height: 1;
  opacity: var(--wind-rest, 0.016);
  text-shadow: 0 0 0 rgba(218, 239, 255, 0);
  transform: translate(-50%, -50%);
  animation: ambient-wind-activate 2.05s var(--wind-delay, 0s) ease-in-out both;
  will-change: opacity, text-shadow;
}

.ambient-meteor {
  position: absolute;
  top: var(--meteor-top, 2rem);
  left: var(--meteor-left, 28%);
  margin: 0;
  color: rgba(234, 246, 255, 0.82);
  font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 6px;
  letter-spacing: 0;
  line-height: 1;
  opacity: 0;
  text-shadow: 0 0 7px rgba(218, 239, 255, 0.5);
  transform: rotate(-12deg);
  transform-origin: right center;
  animation: ambient-meteor-pass 1.2s ease-out forwards;
  white-space: pre;
}

@keyframes ambient-page-star-flicker {
  0%, 100% { opacity: var(--star-floor, 0.04); }
  50% { opacity: var(--star-peak, 0.16); }
}

@keyframes ambient-star-breathe {
  0%, 100% { opacity: 0.46; }
  50% { opacity: 1; }
}

@keyframes ambient-wind-activate {
  0%, 18% {
    opacity: var(--wind-rest, 0.016);
    text-shadow: 0 0 0 rgba(218, 239, 255, 0);
  }
  48% {
    opacity: var(--wind-peak, 0.42);
    text-shadow: 0 0 7px rgba(218, 239, 255, 0.34);
  }
  100% { opacity: 0; text-shadow: 0 0 0 rgba(218, 239, 255, 0); }
}

@keyframes ambient-meteor-pass {
  0% { opacity: 0; transform: translate3d(0, 0, 0) rotate(-12deg); }
  18% { opacity: 0.66; }
  100% { opacity: 0; transform: translate3d(8rem, 1.8rem, 0) rotate(-12deg); }
}

@media (max-width: 760px) {
  .lunar-lockup {
    top: 4.1rem;
    right: 0;
    width: 19.5rem;
    opacity: 0.84;
  }

  .lunar-meta {
    top: 2.5rem;
    right: 0.8rem;
  }

  .lunar-bearing {
    display: none;
  }
}

@media (max-width: 480px) {
  .ambient-sky {
    height: 30rem;
  }

  .lunar-lockup {
    top: 3.85rem;
    right: 0;
    width: 17.5rem;
    opacity: 0.72;
  }

  .lunar-meta,
  .lunar-meter {
    font-size: 5px;
  }

  .lunar-meter {
    right: 0.8rem;
    bottom: 3.3rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ambient-page-star.is-flickering {
    animation: none;
    opacity: var(--star-floor, 0.04);
  }

  .ambient-star {
    animation: none;
  }

  .ambient-wind-current,
  .ambient-meteor {
    display: none;
  }
}

@media print {
  .ambient-sky,
  .ambient-page-stars {
    display: none;
  }
}