@font-face {
  font-family: "Cormorant Garamond";
  src: url("./fonts/cormorant-garamond-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 300 400;
  font-display: block;
}

@font-face {
  font-family: "Cormorant Garamond";
  src: url("./fonts/cormorant-garamond-latin-italic.woff2") format("woff2");
  font-style: italic;
  font-weight: 300 400;
  font-display: block;
}

@font-face {
  font-family: "Josefin Sans";
  src: url("./fonts/josefin-sans-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 300 600;
  font-display: block;
}

@font-face {
  font-family: "Share Tech Mono";
  src: url("./fonts/share-tech-mono-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
  font-display: block;
}

:root {
  --bg: #050507;
  --bg-soft: #07070f;
  --text: #ebe7e0;
  --text-soft: rgba(212, 216, 231, 0.78);
  --text-dim: rgba(126, 132, 156, 0.76);
  --line: rgba(92, 225, 230, 0.12);
  --line-strong: rgba(255, 209, 102, 0.22);
  --glass: rgba(9, 12, 21, 0.68);
  --accent: #5ce1e6;
  --accent-warm: #ffd166;
  --accent-cold: #8fd9ff;
  --accent-rose: #ff6b9d;
  --accent-iris: #7d8eff;
  --font-body: "Josefin Sans", sans-serif;
  --font-display: "Cormorant Garamond", serif;
  --font-mono: "Share Tech Mono", monospace;
  --content-width: min(38rem, calc(100vw - 2rem));
  --shadow-soft: 0 0 46px rgba(92, 225, 230, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
}

html.fonts-loading body {
  opacity: 0;
}

html.fonts-ready body,
html.fonts-failed body {
  opacity: 1;
}

body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at 18% 14%, rgba(92, 118, 228, 0.09), transparent 30%),
    radial-gradient(circle at 83% 18%, rgba(255, 183, 104, 0.07), transparent 24%),
    radial-gradient(circle at 50% 115%, rgba(92, 225, 230, 0.05), transparent 30%),
    radial-gradient(circle at 76% 42%, rgba(255, 107, 157, 0.035), transparent 24%),
    linear-gradient(180deg, rgba(11, 16, 29, 0.2), rgba(5, 5, 7, 0)),
    var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 300;
  letter-spacing: 0.01em;
  overflow-x: hidden;
  position: relative;
  isolation: isolate;
  transition: opacity 120ms linear;
}

body::selection {
  background: rgba(92, 225, 230, 0.22);
}

img,
canvas {
  display: block;
}

button,
input,
textarea,
select {
  font: inherit;
}

a {
  color: inherit;
}

main {
  position: relative;
  z-index: 1;
}

.language-switch {
  position: fixed;
  top: max(1rem, env(safe-area-inset-top));
  right: max(1rem, env(safe-area-inset-right));
  z-index: 18;
  display: inline-flex;
  gap: 0.35rem;
  padding: 0.35rem;
  border-radius: 999px;
  pointer-events: auto;
}

.language-switch__button {
  min-width: 3.1rem;
  border: 0;
  border-radius: 999px;
  padding: 0.62rem 0.95rem;
  background: transparent;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  cursor: pointer;
  transition:
    color 160ms ease,
    background-color 160ms ease,
    box-shadow 160ms ease,
    transform 160ms ease;
}

.language-switch__button:hover,
.language-switch__button:focus-visible {
  color: var(--text);
  outline: none;
}

.language-switch__button.is-active {
  color: #071018;
  background: linear-gradient(135deg, rgba(255, 209, 102, 0.96), rgba(92, 225, 230, 0.92));
  box-shadow: 0 10px 28px rgba(92, 225, 230, 0.18);
}

.starfield,
.page-glow,
.page-noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.starfield {
  z-index: -3;
  width: 100%;
  height: 100%;
}

.page-glow {
  z-index: -2;
  background:
    radial-gradient(circle at 50% -10%, rgba(132, 168, 255, 0.1), transparent 34%),
    radial-gradient(circle at 88% 14%, rgba(255, 188, 116, 0.08), transparent 22%),
    radial-gradient(circle at 18% 86%, rgba(92, 225, 230, 0.07), transparent 28%),
    radial-gradient(circle at 72% 56%, rgba(255, 107, 157, 0.03), transparent 26%);
  opacity: 0.9;
}

.page-noise {
  z-index: -1;
  background:
    radial-gradient(circle at center, rgba(255, 248, 236, 0.022), transparent 52%),
    repeating-radial-gradient(circle at center, transparent 0 1px, rgba(216, 232, 255, 0.01) 1px 2px, transparent 2px 4px);
  opacity: 0.16;
  mix-blend-mode: soft-light;
}

.story {
  position: relative;
}

.panel {
  position: relative;
  min-height: 200vh;
}

.panel--hero {
  min-height: 165vh;
}

.panel--solar {
  min-height: 265vh;
}

.panel--lightspeed {
  min-height: 185vh;
}

.panel--voyager {
  min-height: 205vh;
}

.panel--stars,
.panel--galaxy,
.panel--blackhole,
.panel--observable {
  min-height: 220vh;
}

.panel--finale {
  min-height: 175vh;
}

.panel__sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
}

.panel__content,
.section-copy {
  position: absolute;
  z-index: 4;
  width: var(--content-width);
}

.panel__content {
  left: 50%;
  top: 50%;
  transform: translate3d(-50%, -58%, 0);
  text-align: center;
}

.section-copy--left {
  left: clamp(1.25rem, 5vw, 5rem);
  top: clamp(2rem, 7vh, 5rem);
}

.section-copy--center {
  left: 50%;
  top: 50%;
  transform: translate3d(-50%, -50%, 0);
  text-align: center;
}

.section-copy--right {
  right: clamp(1.25rem, 5vw, 5rem);
  top: clamp(2rem, 10vh, 6.5rem);
}

.eyebrow {
  margin: 0 0 1rem;
  color: rgba(92, 225, 230, 0.84);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  text-shadow: 0 0 18px rgba(92, 225, 230, 0.08);
}

h1,
h2,
strong {
  font-family: var(--font-display);
}

h1,
h2,
p {
  margin-block: 0;
}

h1 {
  margin-bottom: 1.25rem;
  font-size: clamp(3.8rem, 8.7vw, 8.4rem);
  font-weight: 300;
  line-height: 0.88;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(2.4rem, 5vw, 5.6rem);
  font-weight: 300;
  line-height: 0.98;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.lede,
.section-copy p:not(.eyebrow),
.panel__content p:not(.eyebrow) {
  color: var(--text-soft);
  font-size: clamp(1rem, 1.25vw, 1.16rem);
  font-weight: 300;
  line-height: 1.86;
  letter-spacing: 0.02em;
}

.glass {
  background: linear-gradient(180deg, rgba(14, 18, 30, 0.76), rgba(8, 10, 18, 0.56));
  border: 1px solid rgba(92, 225, 230, 0.1);
  box-shadow:
    0 24px 90px rgba(0, 0, 0, 0.42),
    inset 0 1px 0 rgba(255, 243, 228, 0.04);
  backdrop-filter: blur(16px);
}

.nebula {
  position: absolute;
  border-radius: 50%;
  filter: blur(72px);
  opacity: 0.34;
  transform: translate3d(0, 0, 0);
  will-change: transform, opacity;
}

.nebula--hero-a {
  inset: auto auto 18% -8%;
  width: 38vw;
  aspect-ratio: 1;
  background: radial-gradient(circle, rgba(114, 118, 255, 0.34), rgba(91, 222, 215, 0.1) 48%, transparent 70%);
}

.nebula--hero-b {
  inset: 10% -8% auto auto;
  width: 34vw;
  aspect-ratio: 1;
  background: radial-gradient(circle, rgba(255, 186, 110, 0.18), rgba(255, 107, 157, 0.08) 44%, transparent 70%);
}

.nebula--solar-a {
  left: -10%;
  bottom: 12%;
  width: 28vw;
  aspect-ratio: 1;
  background: radial-gradient(circle, rgba(107, 170, 255, 0.16), transparent 68%);
}

.nebula--solar-b {
  right: -8%;
  top: 10%;
  width: 24vw;
  aspect-ratio: 1;
  background: radial-gradient(circle, rgba(255, 189, 119, 0.16), transparent 64%);
}

.hero__planet,
.hero__atmosphere,
.solar__scene,
.lightspeed__canvas,
.lightspeed__streaks,
.galaxy__scene,
.blackhole__scene,
.observable__canvas,
.streak {
  will-change: transform, opacity;
}

.hero__planet {
  position: absolute;
  left: 50%;
  bottom: -44vmin;
  width: min(88vmin, 90vw);
  aspect-ratio: 1;
  border-radius: 50%;
  overflow: hidden;
  isolation: isolate;
  transform: translate3d(-50%, 0, 0);
  background:
    radial-gradient(circle at 34% 28%, rgba(241, 248, 255, 0.9), rgba(143, 185, 232, 0.66) 12%, rgba(74, 126, 193, 0.3) 22%, transparent 28%),
    radial-gradient(ellipse at 33% 46%, rgba(141, 178, 106, 0.9) 0 10%, rgba(73, 112, 62, 0.92) 15%, transparent 24%),
    radial-gradient(ellipse at 52% 60%, rgba(150, 181, 113, 0.82) 0 8%, rgba(72, 106, 64, 0.88) 13%, transparent 22%),
    radial-gradient(ellipse at 66% 42%, rgba(156, 186, 118, 0.8) 0 7%, rgba(74, 108, 67, 0.86) 12%, transparent 19%),
    radial-gradient(ellipse at 60% 74%, rgba(124, 162, 91, 0.7) 0 6%, rgba(64, 93, 61, 0.78) 11%, transparent 18%),
    radial-gradient(circle at 36% 34%, #bed9f5 0%, #72a8e0 18%, #295694 44%, #0f244b 68%, #040b1c 100%);
  box-shadow:
    inset 0 -4vmin 8vmin rgba(0, 0, 0, 0.2),
    inset -8vmin -1vmin 10vmin rgba(4, 12, 30, 0.2),
    0 0 60px rgba(118, 201, 255, 0.14),
    0 0 160px rgba(102, 238, 221, 0.08);
  opacity: 0.94;
}

.hero__planet::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background:
    radial-gradient(ellipse at 28% 30%, rgba(255, 255, 255, 0.28) 0 8%, transparent 18%),
    radial-gradient(ellipse at 44% 42%, rgba(255, 255, 255, 0.2) 0 6%, transparent 15%),
    radial-gradient(ellipse at 59% 55%, rgba(255, 255, 255, 0.18) 0 7%, transparent 16%),
    radial-gradient(ellipse at 70% 35%, rgba(255, 255, 255, 0.16) 0 5%, transparent 12%),
    linear-gradient(155deg, rgba(255, 255, 255, 0.18) 0%, rgba(255, 255, 255, 0.02) 34%, rgba(255, 255, 255, 0.08) 52%, rgba(255, 255, 255, 0) 76%);
  filter: blur(1.8px);
  mix-blend-mode: screen;
  opacity: 0.92;
}

.hero__planet::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background:
    radial-gradient(circle at 68% 43%, rgba(2, 7, 19, 0) 0 18%, rgba(3, 8, 20, 0.14) 40%, rgba(2, 7, 18, 0.46) 66%, rgba(1, 4, 13, 0.88) 100%),
    linear-gradient(102deg, rgba(255, 255, 255, 0) 35%, rgba(5, 14, 33, 0.08) 52%, rgba(2, 7, 19, 0.6) 78%, rgba(1, 4, 12, 0.92) 100%),
    radial-gradient(circle at 6% 46%, rgba(118, 201, 255, 0.34), transparent 14%);
  mix-blend-mode: multiply;
  pointer-events: none;
}

.hero__atmosphere {
  position: absolute;
  left: 50%;
  bottom: -48vmin;
  width: min(108vmin, 108vw);
  aspect-ratio: 1;
  border-radius: 50%;
  transform: translate3d(-50%, 0, 0);
  background:
    radial-gradient(circle at 50% 48%, rgba(120, 189, 255, 0.2), rgba(106, 232, 215, 0.08) 36%, transparent 64%),
    radial-gradient(circle at 42% 34%, rgba(255, 255, 255, 0.05), transparent 30%);
  filter: blur(12px);
}

.scroll-cue {
  margin-top: 2rem;
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.scroll-cue__line {
  width: 3.2rem;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 196, 126, 0.18), rgba(133, 240, 222, 0.88));
  animation: cuePulse 1.8s ease-in-out infinite;
  transform-origin: left center;
}

@keyframes cuePulse {
  0%,
  100% {
    transform: scaleX(0.72);
    opacity: 0.55;
  }

  50% {
    transform: scaleX(1);
    opacity: 1;
  }
}

.solar__copy {
  max-width: min(34rem, calc(100vw - 2rem));
}

.solar__scene {
  position: absolute;
  left: 50%;
  top: 50%;
  width: min(94vw, 980px);
  aspect-ratio: 1;
  transform: translate3d(-50%, -50%, 0) scale(1.08);
  z-index: 2;
}

.sun {
  position: absolute;
  left: 50%;
  top: 50%;
  width: clamp(90px, 11vw, 132px);
  aspect-ratio: 1;
  transform: translate3d(-50%, -50%, 0);
}

.sun__core,
.sun__glow {
  position: absolute;
  inset: 0;
  border-radius: 50%;
}

.sun__core {
  background: radial-gradient(circle at 34% 34%, #fff6de 0%, #ffd292 18%, #ff9a47 52%, #ff6422 76%, rgba(255, 100, 34, 0.52) 100%);
  box-shadow:
    0 0 24px rgba(255, 224, 154, 0.78),
    0 0 74px rgba(255, 149, 73, 0.44),
    0 0 160px rgba(255, 110, 52, 0.16);
}

.sun__glow {
  inset: -28%;
  background: radial-gradient(circle, rgba(255, 191, 118, 0.4), rgba(255, 138, 82, 0.12) 44%, transparent 72%);
  animation: sunPulse 4.4s ease-in-out infinite;
}

@keyframes sunPulse {
  0%,
  100% {
    transform: scale(0.96);
    opacity: 0.64;
  }

  50% {
    transform: scale(1.08);
    opacity: 0.92;
  }
}

.orbit {
  --orbit-size: 240px;
  position: absolute;
  left: 50%;
  top: 50%;
  width: var(--orbit-size);
  height: var(--orbit-size);
  margin-left: calc(var(--orbit-size) / -2);
  margin-top: calc(var(--orbit-size) / -2);
  border: 1px solid rgba(161, 191, 224, 0.1);
  border-radius: 50%;
  pointer-events: none;
}

.orbit::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  box-shadow: inset 0 0 24px rgba(224, 239, 255, 0.024);
}

.orbit--mercury {
  --orbit-size: 160px;
}

.orbit--venus {
  --orbit-size: 230px;
}

.orbit--earth {
  --orbit-size: 320px;
}

.orbit--mars {
  --orbit-size: 405px;
}

.orbit--jupiter {
  --orbit-size: 520px;
}

.orbit--saturn {
  --orbit-size: 650px;
}

.orbit--uranus {
  --orbit-size: 760px;
}

.orbit--neptune {
  --orbit-size: 880px;
}

.planet {
  --planet-size: 12px;
  position: absolute;
  left: 50%;
  top: 0;
  width: var(--planet-size);
  height: var(--planet-size);
  transform: translate3d(-50%, -50%, 0);
  border: 0;
  padding: 0;
  background: transparent;
  cursor: pointer;
  pointer-events: auto;
}

.planet__core,
.planet__glow {
  position: absolute;
  inset: 0;
  border-radius: 50%;
}

.planet__glow {
  inset: -65%;
  opacity: 0;
  transform: scale(0.85);
  background: radial-gradient(circle, rgba(133, 240, 222, 0.34), rgba(143, 217, 255, 0.04) 50%, transparent 76%);
}

.planet__core {
  box-shadow: inset -4px -4px 8px rgba(0, 0, 0, 0.18);
}

.planet:focus-visible {
  outline: 2px solid rgba(250, 240, 224, 0.86);
  outline-offset: 0.45rem;
}

.planet:hover .planet__glow,
.planet:focus-visible .planet__glow {
  opacity: 1;
  transform: scale(1.12);
}

.planet--mercury {
  --planet-size: 10px;
}

.planet--mercury .planet__core {
  background: radial-gradient(circle at 30% 30%, #f8d6b4, #876850 68%, #5d4535 100%);
}

.planet--venus {
  --planet-size: 14px;
}

.planet--venus .planet__core {
  background: radial-gradient(circle at 35% 30%, #ffe5ab, #d9974d 68%, #7e5228 100%);
}

.planet--earth {
  --planet-size: 16px;
}

.planet--earth .planet__core {
  background:
    radial-gradient(circle at 36% 32%, rgba(255, 255, 255, 0.34), transparent 22%),
    linear-gradient(150deg, #6fbaff, #1254d6 70%);
}

.planet--earth .planet__glow {
  opacity: 0.6;
  transform: scale(1);
  background: radial-gradient(circle, rgba(110, 240, 223, 0.56), rgba(143, 217, 255, 0.12) 46%, transparent 76%);
}

.planet--mars {
  --planet-size: 13px;
}

.planet--mars .planet__core {
  background: radial-gradient(circle at 35% 30%, #ffc194, #b15031 66%, #7d2e1d 100%);
}

.planet--jupiter {
  --planet-size: 36px;
}

.planet--jupiter .planet__core {
  background: linear-gradient(180deg, #f9dcba 0%, #deaa76 24%, #ae704f 48%, #f2cfac 66%, #b97f5d 100%);
}

.planet--saturn {
  --planet-size: 30px;
}

.planet--saturn .planet__core {
  background: linear-gradient(180deg, #f3deb0 0%, #dfbf73 36%, #a98641 100%);
}

.planet--saturn::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 46px;
  height: 14px;
  border-radius: 50%;
  border: 1px solid rgba(230, 210, 160, 0.7);
  transform: translate3d(-50%, -50%, 0) rotate(-18deg);
  box-shadow: 0 0 18px rgba(255, 228, 167, 0.12);
}

.planet--uranus {
  --planet-size: 22px;
}

.planet--uranus .planet__core {
  background: linear-gradient(180deg, #cbfbff 0%, #8ee1f5 52%, #5fa8d2 100%);
}

.planet--neptune {
  --planet-size: 22px;
}

.planet--neptune .planet__core {
  background: linear-gradient(180deg, #9ec9ff 0%, #4479ff 58%, #11349f 100%);
}

.planet-card {
  position: absolute;
  right: clamp(1rem, 4vw, 3rem);
  bottom: clamp(1rem, 4vw, 3rem);
  z-index: 5;
  width: min(19rem, calc(100vw - 2rem));
  padding: 1.25rem 1.2rem;
  border-radius: 1.25rem;
}

.planet-card__label,
.planet-card__distance,
.voyager__stat-label,
.voyager__stat-note,
.stars__comparison span {
  display: block;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

.planet-card__label,
.voyager__stat-label,
.stars__comparison span {
  margin-bottom: 0.4rem;
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.planet-card__name {
  display: block;
  margin-bottom: 0.55rem;
  font-family: var(--font-display);
  font-size: 1.55rem;
  letter-spacing: -0.04em;
}

.planet-card__note {
  margin-bottom: 0.75rem;
  color: var(--text-soft);
  font-size: 0.95rem;
  line-height: 1.6;
}

.planet-card__distance {
  font-size: 0.85rem;
  letter-spacing: 0.04em;
}

.earth-callout {
  position: absolute;
  left: 50%;
  bottom: 12vh;
  z-index: 4;
  transform: translate3d(-50%, 24px, 0);
  color: rgba(248, 239, 224, 0.94);
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2vw, 1.8rem);
  letter-spacing: -0.045em;
  opacity: 0;
  text-shadow:
    0 0 28px rgba(133, 240, 222, 0.18),
    0 0 14px rgba(255, 194, 122, 0.1);
}

.lightspeed__canvas,
.lightspeed__streaks,
.lightspeed__flare,
.stars__scene,
.galaxy__scene,
.blackhole__scene,
.observable__canvas,
.observable__veil,
.finale__fade {
  position: absolute;
  inset: 0;
}

.lightspeed__copy {
  width: min(39rem, calc(100vw - 2rem));
}

.lightspeed__canvas {
  z-index: 1;
  width: 100%;
  height: 100%;
  opacity: 0.88;
  pointer-events: none;
}

.lightspeed__streaks {
  z-index: 2;
  opacity: 0.76;
  overflow: hidden;
  mix-blend-mode: screen;
}

.lightspeed__streaks::before,
.lightspeed__streaks::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.lightspeed__streaks::before {
  background:
    linear-gradient(90deg, transparent 0%, rgba(171, 241, 255, 0.08) 16%, rgba(228, 249, 255, 0.14) 48%, rgba(92, 225, 230, 0.08) 78%, transparent 100%);
  filter: blur(18px);
  opacity: 0.8;
}

.lightspeed__streaks::after {
  background:
    radial-gradient(circle at 56% 50%, rgba(255, 251, 236, 0.14), transparent 18%),
    radial-gradient(circle at 48% 50%, rgba(92, 225, 230, 0.18), transparent 30%);
  filter: blur(26px);
  opacity: 0.72;
}

.lightspeed__kicker {
  margin-bottom: 0.8rem;
  color: rgba(235, 231, 224, 0.76);
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  font-style: italic;
  line-height: 1;
}

.lightspeed__metric {
  display: grid;
  gap: 0.35rem;
  margin-bottom: 1.3rem;
}

.lightspeed__number {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: clamp(3.8rem, 9.4vw, 8.2rem);
  letter-spacing: 0.05em;
  line-height: 1;
  text-shadow:
    0 0 40px rgba(92, 225, 230, 0.35),
    0 0 80px rgba(92, 225, 230, 0.18);
}

.lightspeed__unit {
  color: var(--text-dim);
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.35em;
  text-transform: uppercase;
}

.panel--lightspeed h2 {
  max-width: 12ch;
  margin-inline: auto;
}

.lightspeed__body {
  max-width: 24rem;
  margin-inline: auto;
  color: var(--text-dim);
  font-size: 0.95rem;
  line-height: 1.9;
  letter-spacing: 0.04em;
}

.streak {
  position: absolute;
  left: -34vw;
  top: var(--top);
  width: var(--length);
  height: var(--thickness, 1.4px);
  opacity: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(223, 245, 255, 0.94) 38%, rgba(92, 225, 230, 0.24));
  box-shadow:
    0 0 8px rgba(228, 249, 255, 0.2),
    0 0 18px rgba(92, 225, 230, 0.12);
  filter: blur(var(--blur, 0.4px));
  transform: translate3d(-10vw, 0, 0) scaleX(0.12);
  transform-origin: left center;
  animation: streakSweep var(--duration, 7s) linear infinite;
  animation-delay: var(--delay, 0s);
}

.lightspeed__flare {
  z-index: 3;
  background:
    radial-gradient(circle at center, rgba(255, 201, 132, 0.12), transparent 28%),
    linear-gradient(90deg, transparent 0%, rgba(92, 225, 230, 0.18) 48%, transparent 100%);
  opacity: 0.72;
  mix-blend-mode: screen;
}

@keyframes streakSweep {
  0% {
    opacity: 0;
    transform: translate3d(-18vw, 0, 0) scaleX(0.14);
  }

  10% {
    opacity: var(--opacity);
  }

  100% {
    opacity: 0;
    transform: translate3d(var(--travel, 150vw), 0, 0) scaleX(var(--scale-end, 1.55));
  }
}

.voyager__layout {
  position: relative;
  z-index: 4;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: clamp(1.8rem, 4.5vw, 4.25rem);
  align-items: center;
  align-content: center;
  min-height: 100%;
  height: 100%;
  padding: clamp(2rem, 5vh, 4.5rem) 0;
  width: min(1160px, calc(100vw - 3rem));
  margin-inline: auto;
}

.voyager__visual {
  position: relative;
  justify-self: start;
  width: min(100%, 42rem);
  height: clamp(320px, 52vh, 500px);
  min-height: 320px;
  overflow: hidden;
  border-radius: 0.5rem;
  border: 1px solid rgba(92, 225, 230, 0.14);
  background:
    radial-gradient(circle at 24% 72%, rgba(255, 209, 102, 0.05), transparent 22%),
    radial-gradient(circle at 72% 18%, rgba(92, 225, 230, 0.06), transparent 26%),
    rgba(92, 225, 230, 0.015);
  box-shadow:
    0 24px 60px rgba(0, 0, 0, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.voyager__visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 18% 72%, rgba(255, 190, 118, 0.08), transparent 20%),
    radial-gradient(circle at 70% 18%, rgba(92, 225, 230, 0.08), transparent 24%);
  pointer-events: none;
}

.voyager__visual::after {
  content: "";
  position: absolute;
  inset: 1rem;
  border: 1px solid rgba(92, 225, 230, 0.08);
  border-radius: 0.35rem;
  pointer-events: none;
}

.voyager__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.voyager__copy {
  position: relative;
  z-index: 4;
  justify-self: end;
  max-width: min(29rem, 100%);
}

.voyager__launch {
  margin-bottom: 1rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
}

.panel--voyager h2 {
  margin-bottom: 0.8rem;
}

.voyager__body {
  margin-top: 0.2rem;
  margin-bottom: 1.8rem;
  color: var(--text-soft);
  font-size: clamp(0.98rem, 1.25vw, 1.12rem);
  font-weight: 300;
  line-height: 1.85;
}

.voyager__stats {
  display: grid;
  gap: 0.85rem;
  margin: 0 0 1.8rem;
  width: min(25rem, 100%);
}

.voyager__stat {
  border-radius: 4px;
  border: 1px solid rgba(92, 225, 230, 0.18);
  background: rgba(92, 225, 230, 0.025);
  padding: 1.2rem 1.5rem;
}

.voyager__counter {
  display: block;
  margin-bottom: 0.55rem;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2vw, 1.5rem);
  line-height: 1;
  letter-spacing: 0.06em;
}

.voyager__stat-note {
  font-family: var(--font-body);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.voyager__quote {
  margin: 0;
  max-width: 26rem;
  padding-left: 1.5rem;
  border-left: 2px solid rgba(92, 225, 230, 0.4);
  color: var(--text-dim);
  font-family: var(--font-display);
  font-size: clamp(1.12rem, 1.8vw, 1.4rem);
  font-style: italic;
  line-height: 1.65;
}

@media (max-width: 1080px) {
  .voyager__layout {
    grid-template-columns: minmax(0, 1fr);
    justify-items: center;
    gap: 1.6rem;
    width: min(92vw, 44rem);
    padding: 8vh 0 4vh;
  }

  .voyager__visual,
  .voyager__copy {
    justify-self: center;
    width: min(100%, 40rem);
    max-width: min(100%, 40rem);
  }

  .voyager__copy {
    text-align: center;
  }

  .voyager__stats {
    width: min(100%, 26rem);
    margin-inline: auto;
  }

  .voyager__quote {
    max-width: min(100%, 26rem);
    margin-inline: auto;
    text-align: left;
  }
}

.stars__scene {
  z-index: 1;
}

.stars__sun,
.stars__giant {
  position: absolute;
  border-radius: 50%;
}

.stars__sun {
  left: 16%;
  bottom: 17%;
  width: clamp(140px, 18vw, 260px);
  aspect-ratio: 1;
  background: radial-gradient(circle at 34% 34%, #fff2d8 0%, #ffd18d 24%, #ff9b45 62%, rgba(255, 125, 46, 0.18) 100%);
  box-shadow: 0 0 30px rgba(255, 188, 108, 0.48), 0 0 90px rgba(255, 151, 72, 0.2);
}

.stars__giant {
  right: -12vw;
  top: 50%;
  width: clamp(380px, 58vw, 1080px);
  aspect-ratio: 1;
  transform: translate3d(0, -50%, 0) scale(0.62);
  background: radial-gradient(circle at 36% 34%, rgba(255, 255, 255, 0.98), rgba(214, 246, 244, 0.98) 14%, rgba(120, 228, 222, 0.95) 32%, rgba(58, 118, 229, 0.82) 56%, rgba(3, 12, 48, 0.2) 76%, rgba(5, 7, 12, 0) 82%);
  filter: drop-shadow(0 0 55px rgba(126, 229, 220, 0.22));
  opacity: 0.82;
}

.stars__comparison {
  position: absolute;
  right: clamp(1rem, 4vw, 3rem);
  bottom: clamp(1rem, 4vw, 3rem);
  z-index: 4;
  width: min(20rem, calc(100vw - 2rem));
  padding: 1rem 1.1rem;
  border-radius: 1.1rem;
  opacity: 0;
  transform: translate3d(0, 24px, 0);
}

.stars__comparison strong {
  display: block;
  margin-bottom: 0.45rem;
  font-family: var(--font-display);
  font-size: 1.45rem;
  letter-spacing: -0.04em;
}

.stars__comparison p {
  color: var(--text-soft);
  font-size: 0.92rem;
  line-height: 1.6;
}

.galaxy__scene {
  display: grid;
  place-items: center;
  z-index: 1;
}

.galaxy__spiral,
.galaxy__core,
.galaxy__halo {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate3d(-50%, -50%, 0);
}

.galaxy__spiral {
  width: min(88vmin, 980px);
  aspect-ratio: 1;
  border-radius: 50%;
  transform: translate3d(-50%, -50%, 0) scale(0.78) rotate(14deg);
}

.galaxy__spiral::before {
  content: "";
  position: absolute;
  inset: 12%;
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(255, 247, 234, 0.08), rgba(132, 237, 221, 0.08) 16%, transparent 34%),
    conic-gradient(from 18deg, rgba(143, 217, 255, 0.08), transparent 15%, rgba(133, 240, 222, 0.06) 42%, transparent 56%, rgba(255, 196, 126, 0.06) 72%, transparent 88%, rgba(143, 217, 255, 0.08));
  filter: blur(12px);
}

.galaxy__particle {
  position: absolute;
  left: 50%;
  top: 50%;
  width: var(--size, 4px);
  height: var(--size, 4px);
  margin-left: calc(var(--size, 4px) / -2);
  margin-top: calc(var(--size, 4px) / -2);
  border-radius: 50%;
  background: rgba(248, 241, 230, 0.9);
  box-shadow: 0 0 16px rgba(143, 217, 255, 0.18);
  opacity: var(--alpha, 0.6);
  transform: translate3d(var(--x, 0px), var(--y, 0px), 0) scale(var(--scale, 1));
}

.galaxy__core {
  width: clamp(90px, 11vw, 160px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 248, 232, 0.98), rgba(159, 231, 223, 0.82) 34%, rgba(115, 152, 255, 0.16) 72%, rgba(255, 255, 255, 0) 100%);
  filter: blur(4px);
  box-shadow: 0 0 80px rgba(143, 217, 255, 0.18);
}

.galaxy__halo {
  width: min(96vmin, 1120px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(135, 240, 222, 0.08), rgba(105, 112, 255, 0.08) 26%, transparent 64%);
  filter: blur(28px);
  opacity: 0.6;
}

.blackhole__scene {
  display: grid;
  place-items: center;
  z-index: 1;
}

.blackhole__distortion,
.blackhole__accretion,
.blackhole__horizon {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate3d(-50%, -50%, 0);
  border-radius: 50%;
}

.blackhole__distortion {
  width: min(84vw, 980px);
  aspect-ratio: 1;
  background: radial-gradient(circle, rgba(130, 172, 255, 0.12), rgba(87, 233, 214, 0.08) 24%, rgba(8, 10, 18, 0.08) 48%, rgba(5, 7, 7, 0) 68%);
  filter: blur(34px);
  opacity: 0.72;
}

.blackhole__accretion {
  width: min(70vw, 820px);
  aspect-ratio: 1;
  background:
    conic-gradient(from 115deg, rgba(255, 170, 88, 0) 0deg, rgba(255, 189, 120, 0.86) 48deg, rgba(255, 238, 194, 0.9) 82deg, rgba(127, 234, 220, 0.76) 154deg, rgba(111, 171, 255, 0) 250deg, rgba(255, 170, 88, 0) 360deg);
  filter: blur(14px);
  opacity: 0.92;
  transform: translate3d(-50%, -50%, 0) scaleX(1.48) rotate(16deg);
}

.blackhole__horizon {
  width: clamp(180px, 22vw, 300px);
  aspect-ratio: 1;
  background: radial-gradient(circle at 40% 36%, rgba(12, 15, 27, 1) 0%, rgba(4, 5, 11, 1) 60%, #000 100%);
  box-shadow:
    0 0 0 18px rgba(255, 255, 255, 0.018),
    0 0 120px rgba(0, 0, 0, 0.92),
    inset 0 0 40px rgba(255, 255, 255, 0.03);
}

.observable__canvas {
  width: 100%;
  height: 100%;
  z-index: 1;
}

.observable__veil {
  z-index: 2;
  background:
    radial-gradient(circle at 50% 50%, rgba(143, 217, 255, 0.08), transparent 30%),
    linear-gradient(180deg, rgba(5, 5, 7, 0.08), rgba(5, 5, 7, 0.42));
}

.observable__copy {
  z-index: 3;
}

.finale__fade {
  background: linear-gradient(180deg, rgba(7, 8, 12, 0.06), rgba(3, 4, 8, 0.82) 40%, rgba(0, 0, 0, 0.97) 100%);
  opacity: 0.8;
}

.finale__copy {
  z-index: 4;
}

.finale__body {
  max-width: 32rem;
  margin-inline: auto;
}

.finale__credit {
  width: min(33rem, calc(100vw - 2rem));
  margin: 1.9rem auto 0;
  padding: 1.2rem 1.25rem;
  border-radius: 1.1rem;
  text-align: left;
}

.finale__credit-line {
  margin-bottom: 1rem;
  color: var(--text-soft);
  font-size: 0.94rem;
  line-height: 1.7;
  letter-spacing: 0.03em;
}

.finale__brand {
  display: flex;
  align-items: center;
  gap: 0.95rem;
}

.finale__logo {
  width: 3rem;
  height: 3rem;
  object-fit: contain;
  flex: 0 0 auto;
  filter: drop-shadow(0 0 18px rgba(255, 255, 255, 0.12));
}

.finale__brand-copy {
  display: grid;
  gap: 0.2rem;
}

.finale__brand-name {
  display: block;
  color: var(--text);
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 400;
  letter-spacing: -0.02em;
}

.finale__rights {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.finale__year::before {
  content: "•";
  margin-right: 0.35rem;
}

@media (max-width: 900px) {
  .panel--solar {
    min-height: 245vh;
  }

  .solar__scene {
    width: min(110vw, 760px);
  }

  .orbit--neptune {
    --orbit-size: 700px;
  }

  .orbit--uranus {
    --orbit-size: 610px;
  }

  .orbit--saturn {
    --orbit-size: 530px;
  }

  .orbit--jupiter {
    --orbit-size: 440px;
  }

  .orbit--mars {
    --orbit-size: 350px;
  }

  .orbit--earth {
    --orbit-size: 280px;
  }

  .orbit--venus {
    --orbit-size: 210px;
  }

  .orbit--mercury {
    --orbit-size: 150px;
  }
}

@media (max-width: 768px) {
  .language-switch {
    top: max(0.8rem, env(safe-area-inset-top));
    right: max(0.8rem, env(safe-area-inset-right));
    gap: 0.25rem;
    padding: 0.28rem;
  }

  .language-switch__button {
    min-width: 2.75rem;
    padding: 0.55rem 0.72rem;
    font-size: 0.68rem;
    letter-spacing: 0.14em;
  }

  .panel {
    min-height: 180vh;
  }

  .panel--solar,
  .panel--observable,
  .panel--galaxy,
  .panel--blackhole,
  .panel--stars,
  .panel--voyager {
    min-height: 200vh;
  }

  .panel--voyager {
    min-height: 216vh;
  }

  .panel__content,
  .section-copy,
  .section-copy--left,
  .section-copy--center,
  .section-copy--right {
    left: 50%;
    right: auto;
    top: 5.5vh;
    width: min(88vw, 30rem);
    text-align: center;
    transform: translate3d(-50%, 0, 0);
  }

  .hero__content {
    top: 12vh;
    transform: translate3d(-50%, 0, 0);
  }

  h1 {
    font-size: clamp(3rem, 12vw, 4.8rem);
    line-height: 0.94;
  }

  h2 {
    font-size: clamp(2.1rem, 9vw, 3.3rem);
    line-height: 1;
  }

  .hero__planet {
    bottom: -52vw;
    width: 120vw;
  }

  .hero__atmosphere {
    bottom: -58vw;
    width: 138vw;
  }

  .solar__scene {
    top: 72%;
    width: min(84vw, 420px);
  }

  .planet-card,
  .stars__comparison {
    left: 50%;
    right: auto;
    width: min(88vw, 22rem);
    transform: translateX(-50%);
  }

  .planet-card {
    top: 35vh;
    bottom: auto;
  }

  .earth-callout {
    bottom: 28vh;
  }

  .lightspeed__metric {
    gap: 0.35rem;
    margin-bottom: 1.25rem;
  }

  .lightspeed__kicker {
    font-size: 1.2rem;
  }

  .lightspeed__number {
    font-size: clamp(3.1rem, 14vw, 4.8rem);
  }

  .lightspeed__unit {
    font-size: 0.72rem;
    letter-spacing: 0.28em;
  }

  .lightspeed__streaks {
    opacity: 0.88;
  }

  .voyager__layout {
    width: min(92vw, 34rem);
    min-height: 100%;
    height: 100%;
    grid-template-columns: 1fr;
    justify-items: center;
    gap: 1.15rem;
    align-content: start;
    padding: 12vh 0 5vh;
  }

  .voyager__visual {
    order: 2;
    width: min(92vw, 30rem);
    height: clamp(220px, 34vh, 320px);
    min-height: 220px;
  }

  .voyager__copy {
    order: 1;
    align-self: start;
    width: min(92vw, 30rem);
    max-width: min(92vw, 30rem);
    margin-inline: auto;
    text-align: center;
  }

  .voyager__stats {
    width: min(100%, 24rem);
    margin: 1.5rem auto;
  }

  .voyager__quote {
    max-width: min(92vw, 24rem);
    margin-inline: auto;
    text-align: left;
    padding-left: 1.15rem;
  }

  .finale__credit {
    width: min(92vw, 30rem);
    padding: 1rem;
    text-align: center;
    margin-top: 1.4rem;
  }

  .finale__brand {
    justify-content: center;
  }

  .finale__rights {
    justify-content: center;
  }

  .stars__sun {
    left: 7%;
    bottom: 12%;
    width: clamp(90px, 24vw, 136px);
  }

  .stars__giant {
    right: -18vw;
    top: auto;
    bottom: 7%;
    width: 92vw;
    transform: translate3d(0, 0, 0) scale(0.7);
  }

  .stars__comparison {
    top: 37vh;
    bottom: auto;
  }

  .galaxy__spiral {
    width: 118vw;
  }

  .blackhole__accretion {
    width: 88vw;
  }

  .blackhole__horizon {
    width: clamp(150px, 38vw, 220px);
  }
}

@media (max-width: 560px) {
  .panel--solar,
  .panel--stars,
  .panel--voyager {
    min-height: 214vh;
  }

  .panel--voyager {
    min-height: 228vh;
  }

  .solar__copy,
  .stars__copy,
  .voyager__copy {
    max-width: min(88vw, 26rem);
  }

  .voyager__visual {
    width: min(88vw, 26rem);
    height: clamp(210px, 30vh, 280px);
  }

  .voyager__layout {
    gap: 1rem;
    padding-top: 13vh;
  }

  .planet-card {
    top: 33vh;
  }

  .solar__scene {
    top: 74%;
    width: min(82vw, 360px);
  }

  .stars__comparison {
    top: 34vh;
  }

  .stars__giant {
    bottom: 5%;
    width: 88vw;
  }
}

@media (prefers-reduced-motion: reduce) {
  .scroll-cue__line,
  .sun__glow {
    animation: none;
  }

  .streak {
    animation-duration: calc(var(--duration, 7s) * 2.6);
  }

  .nebula,
  .hero__planet,
  .hero__atmosphere,
  .solar__scene,
  .lightspeed__canvas,
  .lightspeed__streaks,
  .galaxy__scene,
  .blackhole__scene,
  .observable__canvas {
    will-change: auto;
  }
}