:root {
  --ink: #0b0e14;
  --ink-raised: #161b22;
  --line: #21262d;
  --text: #e6edf3;
  --muted: #8b949e;
  --cyan: #00d2ff;
  --magenta: #ff2a85;
  --hazard: var(--magenta);
  --clear: var(--cyan);
  --link: var(--cyan);

  --measure: 66ch;
  --gutter: clamp(1.25rem, 5vw, 4rem);
  --star-drift: 0px;
  --star-drift-slow: 0px;
  --shooting-drift: 0px;
  --hero-drift: 0px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  position: relative;
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: "Chivo", system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body::before,
body::after {
  position: fixed;
  inset: -20vh 0;
  pointer-events: none;
  content: "";
  background-repeat: repeat;
  z-index: 0;
}

body::before {
  opacity: 0.62;
  background-image:
    radial-gradient(circle at 18% 24%, rgba(255, 255, 255, 0.72) 0 1px, transparent 1.5px),
    radial-gradient(circle at 72% 68%, rgba(0, 210, 255, 0.55) 0 1px, transparent 1.5px),
    radial-gradient(circle at 42% 82%, rgba(255, 255, 255, 0.45) 0 1px, transparent 1.5px);
  background-size: 17rem 19rem, 23rem 27rem, 31rem 29rem;
  transform: translate3d(0, var(--star-drift), 0);
}

body::after {
  opacity: 0.34;
  background-image:
    radial-gradient(circle at 38% 45%, rgba(255, 42, 133, 0.8) 0 1px, transparent 1.5px),
    radial-gradient(circle at 84% 15%, rgba(255, 255, 255, 0.7) 0 1px, transparent 1.5px);
  background-size: 37rem 41rem, 43rem 47rem;
  transform: translate3d(0, var(--star-drift-slow), 0);
}

.sky-effects {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  transform: translate3d(0, var(--shooting-drift), 0);
  z-index: 0;
}

.shooting-star {
  position: absolute;
  width: 7rem;
  height: 1px;
  opacity: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.95));
  box-shadow: 0 0 8px rgba(0, 210, 255, 0.8);
  transform-origin: right center;
  animation: shooting-star 9s linear infinite;
}

.shooting-star--one {
  top: -8%;
  left: 12%;
  animation-delay: 1.5s;
}

.shooting-star--two {
  top: -14%;
  left: 58%;
  width: 5rem;
  animation-delay: 5.5s;
  animation-duration: 11s;
}

.shooting-star--three {
  top: -20%;
  left: 32%;
  width: 9rem;
  animation-delay: 8s;
  animation-duration: 13s;
}

@keyframes shooting-star {
  0%,
  72% {
    opacity: 0;
    transform: translate3d(-4vw, -28vh, 0) rotate(65deg) scaleX(0.15);
  }

  76% {
    opacity: 0.9;
    transform: translate3d(4vw, 22vh, 0) rotate(65deg) scaleX(1);
  }

  84%,
  100% {
    opacity: 0;
    transform: translate3d(12vw, 125vh, 0) rotate(65deg) scaleX(1.15);
  }
}

.masthead,
main,
.colophon {
  position: relative;
  z-index: 1;
}

a {
  color: var(--link);
}

:focus-visible {
  outline: 2px solid var(--hazard);
  outline-offset: 3px;
}

img {
  display: block;
  max-width: 100%;
}

.masthead {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: baseline;
  justify-content: space-between;
  padding: 1.25rem var(--gutter);
  border-bottom: 1px solid var(--line);
}

.mark {
  font-weight: 900;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  color: var(--text);
  text-decoration: none;
}

.jump {
  display: flex;
  gap: 1.5rem;
  font-size: 0.9rem;
}

.jump a {
  color: var(--muted);
  text-decoration: none;
  transition: color 160ms ease, transform 160ms ease, text-shadow 160ms ease;
  will-change: transform;
}

.jump a:hover {
  color: var(--text);
  text-shadow: 0 0 12px rgba(0, 210, 255, 0.7);
}

.apod {
  padding: 0 0 4rem;
}

.apod__frame {
  position: relative;
  background: var(--ink-raised);
  min-height: 0;
  height: clamp(24rem, 68vh, 52rem);
  overflow: hidden;
  display: grid;
  place-items: center;
}

.apod__frame img,
.apod__frame video,
.apod__frame iframe {
  width: 100%;
  height: 100%;
  min-height: 0;
  object-fit: cover;
  border: 0;
}

.apod__frame img {
  object-position: center;
  transition: transform 500ms ease;
}

.apod__frame:hover img {
  transform: scale(1.015);
}

.media-expand {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  padding: 0.55rem 0.8rem;
  border: 1px solid rgba(230, 237, 243, 0.45);
  border-radius: 2px;
  background: rgba(11, 14, 20, 0.78);
  color: var(--text);
  font: inherit;
  font-size: 0.8rem;
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease;
}

.media-expand:hover {
  border-color: var(--cyan);
  background: rgba(0, 210, 255, 0.18);
}

.apod__frame iframe {
  aspect-ratio: 16 / 9;
}

@media (max-width: 42rem) {
  .apod__frame {
    height: min(70vh, 34rem);
  }
}

.apod__text {
  padding: 2.5rem var(--gutter) 0;
  transform: translate3d(0, var(--hero-drift), 0);
  will-change: transform;
}

.apod__date,
.apod__body,
.apod__credit {
  max-width: var(--measure);
}

.apod__date {
  margin: 0 0 0.5rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.85rem;
  color: var(--muted);
}

.apod__title {
  max-width: 20ch;
  margin: 0 0 1.25rem;
  font-size: clamp(2.2rem, 6vw, 4rem);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.035em;
}

.apod__body {
  margin: 0;
  color: var(--text);
}

.apod__credit {
  margin: 1rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.status,
.notice {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.notice--error {
  color: var(--hazard);
}

.colophon {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  justify-content: space-between;
  padding: 2rem var(--gutter) 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.875rem;
}

.colophon p {
  margin: 0;
}

.image-viewer {
  width: min(94vw, 1200px);
  max-width: none;
  padding: 0;
  border: 1px solid var(--line);
  background: var(--ink-raised);
  color: var(--text);
}

.image-viewer::backdrop {
  background: rgba(11, 14, 20, 0.92);
}

.image-viewer__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--line);
}

.image-viewer__bar p {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.image-viewer__close {
  padding: 0.35rem 0.65rem;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  font: inherit;
  cursor: pointer;
}

.image-viewer__close:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.image-viewer > img {
  width: 100%;
  max-height: 82vh;
  object-fit: contain;
}

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

  body::before,
  body::after,
  .sky-effects,
  .apod__text,
  .jump a {
    transform: none;
    will-change: auto;
  }
}

.panel {
  padding: 3.5rem var(--gutter);
  border-top: 1px solid var(--line);
}

.panel > * {
  width: 100%;
  max-width: var(--content);
}

.panel__head {
  max-width: var(--measure);
  margin-bottom: 2rem;
}

.panel__head h2 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 900;
  letter-spacing: -0.025em;
}

.panel__note {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.status,
.notice {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.notice--error {
  color: var(--hazard);
}

.controls {
  max-width: 34rem;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 2rem;
}

.controls label {
  font-size: 0.9rem;
  color: var(--muted);
}

.controls input {
  min-width: 0;
  padding: 0.6rem 0.8rem;
  background: var(--ink-raised);
  border: 1px solid var(--line);
  border-radius: 2px;
  color: var(--text);
  font: inherit;
  font-size: 0.95rem;
}

.controls input::placeholder {
  color: #66717d;
}

.controls button {
  padding: 0.6rem 1.4rem;
  background: var(--cyan);
  border: 0;
  border-radius: 2px;
  color: var(--ink);
  font: inherit;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background 160ms ease, box-shadow 160ms ease, transform 160ms ease;
  will-change: transform;
}

.controls button:hover {
  background: #66e5ff;
  box-shadow: 0 0 18px rgba(0, 210, 255, 0.35);
}

.controls button:disabled {
  background: var(--line);
  color: var(--muted);
  cursor: progress;
}

.rock {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.5rem 2rem;
  align-items: baseline;
  padding: 1rem 0 1rem 1.25rem;
  border-top: 1px solid var(--line);
  border-left: 3px solid var(--clear);
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
  will-change: transform;
}

.rock:hover {
  box-shadow: 0 0 22px rgba(0, 210, 255, 0.12);
}

.rock:last-child {
  border-bottom: 1px solid var(--line);
}

.rock--hazard {
  border-left-color: var(--hazard);
}

.rock__name {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
}

.rock__name a {
  color: inherit;
  text-decoration: none;
}

.rock__name a:hover {
  text-decoration: underline;
}

.rock__flag {
  margin: 0;
  font-size: 0.8rem;
  color: var(--clear);
  text-align: right;
  justify-self: end;
  align-self: center;
}

.rock--hazard .rock__flag {
  color: var(--hazard);
}

.rock__stats {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.75rem;
  margin: 0;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.85rem;
  color: var(--muted);
}

.rock__stats b {
  font-weight: 500;
  color: var(--text);
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 1.5rem;
}

.gallery:empty {
  display: none;
}

.gallery > p {
  grid-column: 1 / -1;
}

.shot figure {
  margin: 0;
}

.shot img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: var(--ink-raised);
  border-radius: 2px;
}

.shot figcaption {
  margin-top: 0.6rem;
  font-size: 0.9rem;
  line-height: 1.4;
}

.shot .meta {
  display: block;
  margin-top: 0.25rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.75rem;
  color: var(--muted);
}