:root {
  --bg: #f2ecdf;
  --panel: #faf7f0e8;
  --ink: #302b24;
  --muted: #897c6b;
  --line: #b3a38b42;
  --accent: #aa7850;
  --ice: #56878e;
  --mono: Consolas, 'Cascadia Mono', monospace;
  --radius: 19px;
  --shadow: 0 14px 36px -27px #5c463864;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 24px;
  color-scheme: light;
}
body {
  margin: 0;
  background-color: var(--bg);
  background-image:
    linear-gradient(#796f5a07 1px, transparent 1px),
    linear-gradient(90deg, #796f5a07 1px, transparent 1px),
    radial-gradient(ellipse at 80% 5%, #ba8c5f13, transparent 35%);
  background-size:
    96px 96px,
    96px 96px,
    100% 100%;
  color: var(--ink);
  font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
  line-height: 1.75;
}
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 30;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 180px 180px;
}
button,
input,
select {
  font: inherit;
}
button,
a,
summary,
select,
input {
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
button {
  cursor: pointer;
  border: 1px solid var(--line);
  background: #fcf9f1;
  color: var(--ink);
  border-radius: 9px;
  padding: 9px 14px;
  min-height: 41px;
  transition:
    background 0.2s,
    color 0.2s,
    border-color 0.2s;
}
button:hover {
  background: #ede4d4;
}
button:disabled {
  opacity: 0.45;
  cursor: default;
}
a {
  color: inherit;
}
button:focus-visible,
a:focus-visible,
summary:focus-visible,
input:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--ice);
  outline-offset: 4px;
}
button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fffaf1;
}
button[aria-pressed='true']:not(.music-button) {
  border-color: #b48f60;
  background: #e4d7c0;
  color: #5f462b;
}
button.primary[aria-pressed='true'] {
  background: #715840;
  color: #fff9ed;
}
h1,
h2,
h3,
h4,
p,
figure {
  margin: 0;
}
h1,
h2,
h3,
h4 {
  font-weight: 600;
}
h2 {
  font-size: 25px;
  line-height: 1.45;
  letter-spacing: 0.03em;
}
h3 {
  font-size: 20px;
  line-height: 1.5;
}
p {
  margin-bottom: 14px;
}
svg {
  display: block;
}
svg text {
  fill: var(--muted);
  font:
    12px 'Segoe UI',
    'Microsoft YaHei',
    sans-serif;
}
svg .svg-note {
  font-size: 10px;
  letter-spacing: 0.04em;
}
img {
  display: block;
  max-width: 100%;
}
[hidden] {
  display: none !important;
}
button::-moz-focus-inner {
  border: 0;
}
body:has(dialog[open]) {
  overflow: hidden;
}
.app {
  width: min(1320px, calc(100% - 64px));
  margin: auto;
  padding: 30px 0 42px;
}
.eyebrow,
.micro {
  font: 10px/1.6 var(--mono);
  color: var(--muted);
  letter-spacing: 0.17em;
  text-transform: uppercase;
}
.eyebrow {
  margin-bottom: 8px;
}
.page-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 25px;
  padding: 0 3px 23px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--line);
}
.page-header h1 {
  font-size: 34px;
  line-height: 1.3;
  letter-spacing: 0.1em;
}
.page-header h1 span {
  font: 13px var(--mono);
  letter-spacing: 0.25em;
  color: var(--accent);
  margin-left: 16px;
}
.subtitle {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.05em;
  margin: 9px 0 0;
}
.page-header nav {
  display: flex;
  gap: 24px;
  font-size: 12px;
  flex-wrap: wrap;
}
.page-header nav a {
  text-decoration: none;
  padding: 6px 0;
  border-bottom: 1px solid transparent;
}
.page-header nav a:hover {
  border-color: var(--accent);
}
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.panel-heading {
  padding: 17px 25px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  border-bottom: 1px solid var(--line);
}
.panel-heading > div {
  display: flex;
  gap: 15px;
  align-items: center;
}
.panel-heading h2,
.panel-heading h3 {
  font-size: 16px;
  letter-spacing: 0.025em;
}
.index {
  font: 11px var(--mono);
  color: var(--accent);
}
.status {
  font: 10px var(--mono);
  color: var(--muted);
}
.status::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #bca886;
  margin-right: 8px;
}
.status.ready::before {
  background: #77a084;
}
.view-switch {
  display: flex;
  gap: 6px;
  padding: 13px 22px;
  border-bottom: 1px solid var(--line);
  background: #f7f2e8b0;
}
.view-switch button {
  font-size: 12px;
  background: transparent;
  border-color: transparent;
  padding: 8px 14px;
}
.view-switch small {
  font: 9px var(--mono);
  color: var(--muted);
  margin-left: 7px;
}
.view-switch .europa-tab {
  color: var(--ice);
}
.view-switch button.europa-tab[aria-pressed='true'] {
  border-color: #7da1a5;
  background: #dce8e5;
  color: #3b646b;
}
.model-stage {
  position: relative;
  height: 535px;
  isolation: isolate;
  background: radial-gradient(ellipse at 65% 48%, #dcc29e38, transparent 58%);
}
.model-stage.europa-view {
  background: radial-gradient(ellipse at 65% 48%, #b9d2d04a, transparent 58%);
}
.planet-lettering {
  position: absolute;
  top: 18%;
  left: 23%;
  font: 600 clamp(62px, 10vw, 135px) / 1 var(--mono);
  letter-spacing: 0.03em;
  color: #a38e7110;
  pointer-events: none;
}
.model-mount {
  position: absolute;
  inset: 0 0 46px 26%;
  opacity: 0;
  transition: opacity 0.8s;
}
.model-mount.ready {
  opacity: 1;
}
.model-mount canvas {
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
  cursor: grab;
}
.model-mount canvas:active {
  cursor: grabbing;
}
.profile {
  position: absolute;
  top: 35px;
  left: 30px;
  width: 280px;
  z-index: 3;
}
.profile > .eyebrow {
  font-size: 9px;
  color: var(--accent);
  letter-spacing: 0.12em;
}
.profile h3 {
  font-size: 28px;
  font-weight: 400;
  line-height: 1.65;
  letter-spacing: 0.06em;
  margin: 12px 0 22px;
}
.profile details {
  background: #faf7f0ea;
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
}
summary {
  cursor: pointer;
  list-style: none;
}
summary::-webkit-details-marker {
  display: none;
}
.profile summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 9px;
  padding: 13px 16px;
  font-size: 11px;
  color: #7b6247;
}
.plus {
  font-size: 19px;
  font-weight: 300;
  line-height: 1;
}
.profile details[open] .plus {
  transform: rotate(45deg);
}
.profile details > div {
  max-height: 260px;
  overflow: auto;
  padding: 15px 16px 0;
  font-size: 12px;
  color: #776b5e;
  border-top: 1px solid var(--line);
  scrollbar-width: thin;
}
.profile-europa {
  display: inline-block;
  margin-top: 17px;
}
.model-caption {
  position: absolute;
  left: 31px;
  bottom: 24px;
  display: flex;
  align-items: center;
  gap: 13px;
  pointer-events: none;
}
.model-caption > span {
  color: var(--accent);
  font: 24px var(--mono);
}
.model-caption p {
  font-size: 11px;
  color: var(--muted);
  margin: 0;
}
.model-caption small {
  font: 9px var(--mono);
  opacity: 0.75;
}
.model-controls {
  position: absolute;
  right: 24px;
  bottom: 20px;
  display: flex;
  gap: 7px;
}
.model-controls button {
  font-size: 10px;
  background: #faf7f0d9;
  min-height: 35px;
  padding: 6px 11px;
}
.model-loading {
  position: absolute;
  inset: 0 0 40px 26%;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 15px;
  pointer-events: none;
}
.model-loading p {
  font-size: 12px;
  color: var(--muted);
  margin: 0;
}
.model-loading small {
  display: block;
  font: 8px var(--mono);
  letter-spacing: 0.12em;
  margin-top: 5px;
}
.spinner {
  display: block;
  width: 31px;
  height: 31px;
  border-radius: 50%;
  border: 1px solid #c8b59666;
  border-top-color: var(--accent);
  animation: spin 1.5s linear infinite;
}
.model-fallback {
  position: absolute;
  inset: 30px 5% 80px 32%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.model-fallback img {
  width: 100%;
  max-height: 280px;
  object-fit: cover;
  border-radius: 13px;
}
.model-fallback p {
  font-size: 12px;
  color: var(--muted);
  padding: 14px;
}
.model-labels {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.model-labels button {
  position: absolute;
  transform: translate(-50%, -50%);
  padding: 5px 9px;
  min-height: 28px;
  font-size: 10px;
  white-space: nowrap;
  background: #fbf8efe8;
  pointer-events: auto;
  border-color: #b3a58e80;
  box-shadow: 0 4px 10px #4c372319;
}
.model-labels button:before {
  content: '';
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--moon-color);
  margin-right: 6px;
}
.model-stage.is-system .model-mount {
  left: 0;
}
.model-stage.is-system .profile,
.model-stage.is-system .planet-lettering {
  display: none;
}
.body-facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 0;
  border-top: 1px solid var(--line);
  padding: 22px 12px;
}
.body-facts > div {
  padding: 0 25px;
  border-right: 1px solid var(--line);
}
.body-facts > div:last-child {
  border-right: 0;
}
dt {
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 6px;
}
dd {
  margin: 0;
  font-variant-numeric: tabular-nums;
}
.body-facts dd {
  font-size: 26px;
  line-height: 1.45;
}
.body-facts small {
  font-size: 10px;
  color: var(--muted);
  margin-left: 5px;
}
.model-note {
  font-size: 10px;
  color: var(--muted);
  padding: 0 27px 17px;
  margin: 0;
  line-height: 1.85;
}
.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 25px;
  align-items: flex-end;
  margin-bottom: 24px;
}
.section-heading > p {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.9;
  margin: 0;
}
.weather-grid {
  display: grid;
  grid-template-columns: 1fr 1.12fr;
  gap: 66px;
  margin: 65px 3px 70px;
  align-items: center;
}
.weather-copy {
  padding: 4px 20px 4px 8px;
}
.weather-copy h2 {
  font-size: 31px;
  font-weight: 450;
  line-height: 1.6;
  margin: 13px 0 23px;
}
.weather-copy > p:not(.eyebrow) {
  font-size: 13px;
  color: #776b5c;
  line-height: 2.05;
}
.weather-facts {
  display: flex;
  gap: 55px;
  margin: 27px 0;
}
.weather-facts dd {
  font-size: 23px;
}
.weather-facts span,
.weather-facts small {
  font-size: 11px;
  color: var(--muted);
}
.weather-image {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fcf8f0;
  overflow: hidden;
}
.photo-button,
.moon-picture,
.europa-photo {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  border-radius: 0;
  overflow: hidden;
  background: #151718;
  min-height: 0;
}
.photo-button img {
  width: 100%;
  height: 350px;
  object-fit: cover;
  transition: transform 0.5s;
}
.photo-button:hover img,
.europa-photo:hover img {
  transform: scale(1.035);
}
.photo-tag {
  position: absolute;
  left: 18px;
  top: 17px;
  font: 8px var(--mono);
  letter-spacing: 0.13em;
  background: #211d1980;
  border: 1px solid #ffffff25;
  color: #fff4de;
  padding: 5px 8px;
  border-radius: 5px;
}
.expand {
  position: absolute;
  right: 17px;
  bottom: 16px;
  background: #faf6e8e8;
  color: #473d30;
  border-radius: 50%;
  width: 31px;
  height: 31px;
  display: grid;
  place-items: center;
}
.weather-image figcaption {
  padding: 15px 20px;
  font-size: 12px;
  color: #716354;
}
.weather-image figcaption small {
  font-size: 9px;
  color: var(--muted);
}
.text-link {
  color: var(--accent);
  font-size: 11px;
  text-decoration: none;
  border-bottom: 1px solid #b69b704f;
  padding-bottom: 3px;
}
.text-link:hover {
  border-color: var(--accent);
}
.text-button {
  padding: 0;
  min-height: 32px;
  border: 0;
  border-bottom: 1px solid transparent;
  border-radius: 0;
  color: var(--accent);
  background: transparent;
  font-size: 11px;
}
.text-button:hover {
  background: transparent;
  border-bottom-color: var(--accent);
}
.moon-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}
.moon-card {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 15px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.moon-card.featured {
  border-color: #86a9aa80;
  background: #f3f6ee;
}
.moon-picture {
  aspect-ratio: 1.65;
  background: #bfb39a;
}
.moon-picture img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.65s;
  filter: saturate(0.78);
}
.moon-picture:hover img {
  transform: scale(1.08);
}
.moon-picture > span {
  position: absolute;
  top: 13px;
  left: 13px;
  background: #2d261c96;
  color: #f8f4e8;
  font: 7px var(--mono);
  letter-spacing: 0.08em;
  padding: 5px 6px;
  border-radius: 4px;
}
.moon-picture i {
  position: absolute;
  bottom: 9px;
  right: 12px;
  font-style: normal;
  color: #fff6df;
  text-shadow: 0 1px 3px #312719;
}
.moon-copy {
  padding: 20px;
}
.moon-copy > .eyebrow {
  color: var(--accent);
  font-size: 9px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.moon-copy h3 {
  font-size: 21px;
  margin: 2px 0 12px;
}
.moon-copy > p:not(.eyebrow) {
  font-size: 12px;
  color: #776b5b;
  line-height: 1.95;
  min-height: 94px;
}
.moon-copy dl {
  margin: 0 0 18px;
}
.moon-copy dl > div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  padding: 6px 0;
  border-top: 1px solid var(--line);
}
.moon-copy dt {
  font-size: 10px;
  margin: 0;
}
.moon-copy dd {
  font: 11px var(--mono);
}
.feature-badge {
  font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
  font-size: 9px;
  color: #517c83;
  background: #dce9e2;
  padding: 1px 6px;
  border-radius: 4px;
  letter-spacing: 0;
}
.featured .text-link {
  color: var(--ice);
}
.section-note {
  font-size: 10px;
  color: var(--muted);
  margin: 14px 4px 0;
}
.europa-section {
  margin: 70px 0;
}
.europa-section > .section-heading .eyebrow {
  color: var(--ice);
}
.europa-mark {
  font: 10px var(--mono);
  letter-spacing: 0.2em;
  border: 1px solid #8aadaa5e;
  border-radius: 7px;
  padding: 5px 12px;
  color: var(--ice);
}
.europa-hero {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  overflow: hidden;
  border-radius: 19px;
  background: #243a3e;
  color: #f4f1e6;
  box-shadow: var(--shadow);
}
.europa-photo {
  background: #060709;
  min-height: 440px;
}
.europa-photo img {
  width: 100%;
  height: 100%;
  max-height: 535px;
  object-fit: contain;
  transition: transform 0.7s;
}
.europa-photo .photo-tag {
  font-size: 7px;
}
.europa-hero-copy {
  padding: 46px 47px 30px;
  align-self: center;
}
.europa-hero-copy .eyebrow {
  color: #a6c2c1;
  font-size: 9px;
}
.europa-hero-copy h3 {
  font-size: 32px;
  line-height: 1.55;
  font-weight: 400;
  letter-spacing: 0.05em;
  margin: 17px 0 23px;
}
.europa-hero-copy > p:not(.eyebrow):not(.europa-caption) {
  font-size: 13px;
  color: #c2d1cd;
  line-height: 2;
}
.europa-hero-facts {
  display: flex;
  gap: 42px;
  margin: 28px 0 27px;
}
.europa-hero-facts strong {
  font: 34px var(--mono);
  letter-spacing: -0.05em;
  color: #e1ece1;
}
.europa-hero-facts span {
  display: block;
  font-size: 10px;
  color: #a4bcb9;
  margin-top: 8px;
}
.europa-caption {
  font-size: 8px;
  color: #98aeaa;
  margin: 0;
}
.europa-study {
  margin-top: 22px;
}
.interior-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
}
.cutaway-wrap {
  padding: 25px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}
.cutaway {
  width: 100%;
  max-width: 440px;
}
.cutaway-labels text {
  font-size: 10px;
}
.note {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.9;
  margin: 0;
}
.cutaway-wrap .note {
  text-align: center;
  margin-top: 6px;
}
.layer-content {
  padding: 26px 35px 28px;
  border-left: 1px solid var(--line);
  background: #edf1ea50;
}
.layer-tabs {
  display: flex;
  gap: 7px;
  margin-bottom: 22px;
}
.layer-tabs button {
  flex: 1;
  font-size: 12px;
  background: transparent;
}
.layer-tabs [aria-selected='true'] {
  color: #3e7179;
  background: #dce9e5;
  border-color: #8eafae;
}
.layer-content .eyebrow {
  color: var(--ice);
  font-size: 9px;
}
.layer-content h4 {
  font-size: 22px;
  font-weight: 500;
  margin: 6px 0 13px;
}
#layer-copy {
  font-size: 13px;
  color: #6c756c;
  line-height: 2;
  min-height: 82px;
}
.research-update {
  border-top: 1px solid var(--line);
  margin-top: 20px;
  padding-top: 17px;
}
.research-update > span {
  font: 9px var(--mono);
  color: var(--ice);
  letter-spacing: 0.06em;
}
.research-update p {
  font-size: 11px;
  color: #738176;
  margin: 8px 0;
}
.research-update strong {
  color: #406b70;
  font-weight: 600;
}
.research-update a {
  font-size: 10px;
  color: var(--ice);
  text-decoration: none;
}
.evidence-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 23px;
  margin: 25px 4px;
}
.evidence-grid article {
  padding: 18px 13px 12px;
  border-top: 1px solid #b1c4bc;
}
.evidence-number {
  font: 11px var(--mono);
  color: var(--ice);
}
.evidence-grid h3 {
  font-size: 17px;
  font-weight: 500;
  margin: 11px 0 12px;
}
.evidence-grid p {
  font-size: 12px;
  color: #778074;
  line-height: 2;
  margin-bottom: 18px;
}
.evidence-label {
  font-size: 9px;
  color: #8b9587;
}
.clipper-note {
  display: flex;
  align-items: center;
  gap: 24px;
  border: 1px solid #94b1ae59;
  border-radius: 14px;
  background: #e5eee660;
  padding: 25px 28px;
}
.clipper-symbol {
  font: 35px var(--mono);
  color: var(--ice);
}
.clipper-note > div {
  flex: 1;
}
.clipper-note h3 {
  font-size: 18px;
  font-weight: 500;
  margin-bottom: 10px;
}
.clipper-note p:last-child {
  font-size: 12px;
  color: #6f7b70;
  line-height: 1.95;
  margin: 0;
}
.clipper-note > .text-link {
  white-space: nowrap;
  color: var(--ice);
}
.orbit-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
}
.orbit-visual {
  padding: 18px;
  display: flex;
  align-items: center;
  min-width: 0;
}
.orbit-visual svg {
  width: 100%;
  max-height: 510px;
}
.orbit-readout {
  border-left: 1px solid var(--line);
  background: #f5efe480;
  padding: 28px;
}
.orbit-readout > h3 {
  font: 45px/1.4 var(--mono);
  color: var(--accent);
  margin: 9px 0 16px;
  letter-spacing: -0.05em;
}
.orbit-readout > h3 span {
  color: #c4ad8b;
}
.orbit-readout > p:not(.eyebrow):not(.note) {
  font-size: 12px;
  color: #796d5d;
  line-height: 2;
}
.orbit-readings {
  margin: 19px 0;
}
.orbit-reading {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
  font-size: 11px;
  color: #7d7060;
}
.orbit-reading > span:first-child::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--moon-color);
  margin-right: 9px;
}
.orbit-reading strong {
  font: 17px var(--mono);
  color: var(--ink);
}
.orbit-reading small {
  font-size: 9px;
}
.orbit-readout > .text-button {
  margin-top: 15px;
}
.timeline {
  padding: 22px 27px;
  border-top: 1px solid var(--line);
}
.timeline-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  font-size: 11px;
  color: var(--muted);
}
.timeline-head strong {
  font: 20px var(--mono);
  color: var(--ink);
  margin: 0 8px;
}
.timeline input {
  display: block;
  width: 100%;
  height: 18px;
  accent-color: var(--accent);
  margin: 22px 0;
  cursor: pointer;
}
.timeline-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}
.timeline-actions > div {
  display: flex;
  gap: 8px;
}
.timeline-actions button {
  font-size: 12px;
}
.timeline-actions label {
  font-size: 11px;
  color: var(--muted);
}
select {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px;
  margin-left: 6px;
  background: #fbf8ef;
  color: var(--ink);
  min-height: 40px;
}
#missions {
  margin-top: 70px;
}
.mission-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}
.mission-grid article {
  border-top: 1px solid #b6a389;
  padding: 22px 8px 8px;
}
.mission-grid article > span {
  font: 10px var(--mono);
  color: var(--accent);
}
.mission-grid h3 {
  font-size: 23px;
  margin: 13px 0 11px;
}
.mission-grid p {
  font-size: 12px;
  line-height: 1.95;
  color: #807361;
}
.mission-grid a {
  font-size: 10px;
  text-decoration: none;
  color: var(--accent);
}
.mission-grid .mission-featured {
  border-color: #83a7a7;
}
.mission-featured > span,
.mission-featured a {
  color: var(--ice) !important;
}
footer {
  border-top: 1px solid var(--line);
  margin-top: 65px;
  padding: 32px 3px 0;
  color: var(--muted);
}
footer > p:nth-child(2) {
  font-size: 13px;
  font-weight: 300;
  letter-spacing: 0.07em;
}
footer details {
  margin-top: 25px;
  font-size: 10px;
  max-width: 960px;
  line-height: 2;
}
footer summary {
  width: fit-content;
  padding: 7px 0;
  color: #7c6a54;
}
footer details[open] summary {
  margin-bottom: 12px;
}
footer details a {
  color: var(--ice);
}
.back-top,
.music-button {
  position: fixed;
  z-index: 25;
  right: 20px;
  border: 1px solid #a68e6659;
  background: #faf6e9d9;
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 20px #56402714;
}
.back-top {
  bottom: 78px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 43px;
  height: 43px;
  border-radius: 12px;
  text-decoration: none;
  font-size: 19px;
}
.back-top span {
  display: none;
}
.music-button {
  bottom: 24px;
  width: 43px;
  height: 43px;
  border-radius: 12px;
  padding: 0;
  font-size: 23px;
  color: var(--accent);
}
.music-button[aria-pressed='true'] {
  background: #607b78;
  color: white;
  border-color: #607b78;
}
.sr-only,
.skip-link:not(:focus) {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}
.skip-link:focus {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 90;
  background: #fff7e5;
  padding: 10px 15px;
}
dialog {
  border: 1px solid #c6b89e;
  width: min(1120px, calc(100% - 50px));
  max-height: 90dvh;
  padding: 0;
  border-radius: 18px;
  background: #f7f2e8;
  color: var(--ink);
  box-shadow: 0 30px 90px #0006;
  overflow: auto;
}
dialog[open] {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  align-items: center;
}
dialog::backdrop {
  background: #1e211eca;
  backdrop-filter: blur(6px);
}
#dialog-image {
  width: 100%;
  max-height: 85dvh;
  object-fit: contain;
  background: #111615;
  align-self: stretch;
}
.dialog-copy {
  padding: 40px 35px;
}
.dialog-copy h2 {
  font-size: 25px;
  margin: 10px 0 22px;
}
.dialog-copy > p:not(.eyebrow) {
  font-size: 13px;
  color: #7b6e5e;
  line-height: 2;
}
.dialog-close {
  position: absolute;
  right: 13px;
  top: 13px;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  min-height: 36px;
  padding: 0;
  line-height: 1;
  font-size: 24px;
  background: #f6efe4e8;
  z-index: 2;
}
.noscript {
  position: fixed;
  bottom: 0;
  padding: 9px;
  background: #eed9ae;
  width: 100%;
  margin: 0;
  text-align: center;
  font-size: 12px;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
@media (min-width: 1600px) {
  .app {
    width: min(1440px, calc(100% - 100px));
  }
  .model-stage {
    height: 610px;
  }
}
@media (max-width: 1100px) {
  .app {
    width: calc(100% - 40px);
  }
  .profile {
    width: 235px;
    left: 23px;
  }
  .profile h3 {
    font-size: 24px;
  }
  .view-switch {
    gap: 2px;
    padding: 10px 12px;
  }
  .view-switch button {
    padding: 8px 10px;
  }
  .view-switch small {
    display: none;
  }
  .body-facts > div {
    padding: 0 14px;
  }
  .body-facts dd {
    font-size: 22px;
  }
  .weather-grid {
    gap: 32px;
  }
  .weather-copy h2 {
    font-size: 27px;
  }
  .moon-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .moon-copy > p:not(.eyebrow) {
    min-height: 46px;
  }
  .europa-hero-copy {
    padding: 30px;
  }
  .europa-hero-copy h3 {
    font-size: 27px;
  }
  .europa-hero-facts {
    gap: 25px;
  }
  .europa-photo {
    min-height: 430px;
  }
  .layer-content {
    padding: 24px;
  }
  .mission-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .clipper-note {
    gap: 18px;
  }
  .orbit-readout {
    padding: 23px;
  }
}
@media (max-width: 760px) {
  html {
    scroll-padding-top: 16px;
  }
  .app {
    width: calc(100% - 28px);
    padding-top: 23px;
  }
  .page-header {
    display: block;
    margin-bottom: 17px;
    padding: 0 2px 18px;
  }
  .page-header h1 {
    font-size: 29px;
  }
  .page-header h1 span {
    font-size: 11px;
  }
  .subtitle {
    font-size: 11px;
  }
  .page-header nav {
    gap: 20px;
    row-gap: 1px;
    margin-top: 17px;
    font-size: 11px;
  }
  .panel-heading {
    padding: 15px 16px;
  }
  .panel-heading > div {
    gap: 10px;
  }
  .panel-heading h2,
  .panel-heading h3 {
    font-size: 14px;
  }
  .panel-heading .micro {
    font-size: 7px;
    max-width: 105px;
    text-align: right;
    letter-spacing: 0.05em;
  }
  .status {
    font-size: 8px;
  }
  .view-switch {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4px;
    padding: 10px;
  }
  .view-switch button {
    font-size: 11px;
    padding: 7px 3px;
    min-height: 35px;
  }
  .model-stage {
    height: auto;
    display: flex;
    flex-direction: column;
    padding-top: 16px;
    min-height: 495px;
  }
  .planet-lettering {
    top: 35%;
    left: 12%;
    font-size: 68px;
  }
  .profile {
    position: relative;
    left: auto;
    top: auto;
    width: auto;
    margin: 0 16px;
    order: 0;
  }
  .profile > .eyebrow {
    font-size: 8px;
    margin-bottom: 3px;
  }
  .profile h3 {
    font-size: 18px;
    margin: 4px 0 12px;
    line-height: 1.55;
  }
  .profile h3 br {
    display: none;
  }
  .profile summary {
    padding: 9px 12px;
    font-size: 10px;
  }
  .profile details > div {
    font-size: 11px;
    max-height: 230px;
  }
  .profile-europa {
    margin-top: 11px;
  }
  .model-mount {
    position: relative;
    inset: auto !important;
    width: 100%;
    height: 330px;
    order: 1;
  }
  .model-caption {
    position: static;
    order: 2;
    margin: 3px 18px 9px;
    gap: 9px;
  }
  .model-caption p {
    font-size: 10px;
  }
  .model-caption small {
    font-size: 8px;
  }
  .model-controls {
    position: static;
    order: 3;
    justify-content: flex-end;
    padding: 1px 15px 16px;
    gap: 6px;
  }
  .model-controls button {
    font-size: 9px;
    padding: 6px 10px;
  }
  .model-loading {
    inset: 100px 0 60px;
    z-index: 4;
  }
  .model-loading p {
    font-size: 11px;
  }
  .model-fallback {
    position: relative;
    inset: auto;
    order: 1;
    padding: 20px;
  }
  .model-stage.is-system {
    min-height: 395px;
  }
  .model-stage.is-system .model-mount {
    height: 330px;
  }
  .model-labels button {
    font-size: 8px;
    padding: 4px 6px;
    min-height: 25px;
  }
  .body-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding: 10px 12px;
    row-gap: 14px;
  }
  .body-facts > div {
    padding: 6px 8px;
  }
  .body-facts > div:nth-child(2) {
    border-right: 0;
  }
  .body-facts dt {
    font-size: 9px;
  }
  .body-facts dd {
    font-size: 23px;
  }
  .body-facts small {
    font-size: 9px;
  }
  .model-note {
    font-size: 9px;
    padding: 4px 18px 16px;
  }
  .weather-grid {
    grid-template-columns: 1fr;
    gap: 23px;
    margin: 44px 0 50px;
  }
  .weather-copy {
    padding: 0 4px;
  }
  .weather-copy h2 {
    font-size: 25px;
    line-height: 1.5;
    margin: 10px 0 20px;
  }
  .weather-copy h2 br {
    display: none;
  }
  .weather-copy > p:not(.eyebrow) {
    font-size: 12px;
  }
  .weather-facts {
    margin: 20px 0;
    gap: 48px;
  }
  .photo-button img {
    height: 275px;
  }
  .weather-image figcaption {
    font-size: 11px;
    padding: 13px 16px;
  }
  .section-heading {
    display: block;
    margin-bottom: 20px;
  }
  .section-heading h2 {
    font-size: 23px;
  }
  .section-heading > p {
    margin-top: 13px;
    font-size: 10px;
  }
  .section-heading > p br {
    display: none;
  }
  .section-heading .eyebrow {
    font-size: 9px;
  }
  .moon-grid {
    gap: 13px;
  }
  .moon-copy {
    padding: 16px;
  }
  .moon-copy h3 {
    font-size: 20px;
  }
  .moon-copy > p:not(.eyebrow) {
    font-size: 11px;
    min-height: 100px;
    line-height: 1.9;
  }
  .moon-copy dl > div {
    display: block;
    padding: 6px 0;
  }
  .moon-copy dd {
    font-size: 10px;
    margin-top: 3px;
  }
  .moon-picture {
    aspect-ratio: 1.4;
  }
  .moon-picture > span {
    font-size: 6px;
    left: 7px;
    top: 8px;
    letter-spacing: 0;
    padding: 4px;
  }
  .feature-badge {
    font-size: 7px;
    padding: 0 3px;
  }
  .moon-copy > .eyebrow {
    font-size: 8px;
    letter-spacing: 0.08em;
  }
  .section-note {
    font-size: 9px;
    line-height: 1.8;
  }
  .europa-section {
    margin: 50px 0;
  }
  .europa-mark {
    display: inline-block;
    margin-top: 14px;
    font-size: 9px;
  }
  .europa-hero {
    grid-template-columns: 1fr;
  }
  .europa-photo {
    min-height: 0;
    aspect-ratio: 1.15;
  }
  .europa-photo img {
    height: 100%;
    max-height: none;
  }
  .europa-hero-copy {
    padding: 28px 24px;
  }
  .europa-hero-copy h3 {
    font-size: 28px;
    margin: 13px 0 20px;
  }
  .europa-hero-copy > p:not(.eyebrow):not(.europa-caption) {
    font-size: 12px;
  }
  .europa-hero-facts {
    gap: 35px;
  }
  .europa-hero-facts strong {
    font-size: 30px;
  }
  .europa-hero-facts span {
    font-size: 9px;
  }
  .interior-grid {
    grid-template-columns: 1fr;
  }
  .cutaway-wrap {
    padding: 18px 14px;
  }
  .cutaway {
    max-width: 390px;
  }
  .cutaway-wrap .note {
    font-size: 10px;
  }
  .layer-content {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding: 22px 18px;
  }
  .layer-tabs {
    gap: 6px;
  }
  .layer-tabs button {
    font-size: 11px;
    padding: 8px;
  }
  .layer-content h4 {
    font-size: 20px;
  }
  #layer-copy {
    font-size: 12px;
    min-height: 90px;
  }
  .evidence-grid {
    grid-template-columns: 1fr;
    gap: 9px;
    margin: 22px 0;
  }
  .evidence-grid article {
    padding: 18px 5px;
  }
  .evidence-grid p {
    font-size: 12px;
    margin-bottom: 10px;
  }
  .clipper-note {
    padding: 22px 18px;
    display: block;
  }
  .clipper-symbol {
    display: none;
  }
  .clipper-note h3 {
    font-size: 17px;
  }
  .clipper-note p:last-child {
    font-size: 11px;
  }
  .clipper-note > .text-link {
    display: inline-block;
    margin-top: 17px;
  }
  .orbit-grid {
    grid-template-columns: 1fr;
  }
  .orbit-visual {
    padding: 6px;
  }
  .orbit-readout {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding: 24px 20px;
  }
  .orbit-readout > h3 {
    font-size: 37px;
  }
  .orbit-readout > p:not(.eyebrow):not(.note) {
    font-size: 12px;
  }
  .orbit-readout .note {
    font-size: 10px;
  }
  .timeline {
    padding: 20px 18px;
  }
  .timeline-head {
    display: block;
    font-size: 10px;
  }
  .timeline-head > span {
    display: block;
    margin-top: 7px;
  }
  .timeline-actions button {
    font-size: 11px;
    padding: 8px 12px;
  }
  #missions {
    margin-top: 45px;
  }
  .mission-grid {
    gap: 20px 15px;
  }
  .mission-grid article {
    padding: 17px 3px 4px;
  }
  .mission-grid h3 {
    font-size: 18px;
  }
  .mission-grid p {
    font-size: 11px;
  }
  .mission-grid article > span {
    font-size: 8px;
  }
  .back-top,
  .music-button {
    right: 10px;
    width: 36px;
    height: 36px;
    border-radius: 10px;
  }
  .music-button {
    bottom: 14px;
    min-height: 36px;
    font-size: 21px;
  }
  .back-top {
    bottom: 60px;
  }
  footer {
    margin-top: 45px;
    padding: 25px 0 0;
  }
  footer > .eyebrow {
    font-size: 8px;
  }
  footer > p:nth-child(2) {
    font-size: 11px;
  }
  dialog {
    width: calc(100% - 24px);
    max-height: 91dvh;
  }
  dialog[open] {
    display: block;
  }
  #dialog-image {
    max-height: 55dvh;
  }
  .dialog-copy {
    padding: 24px;
  }
  .dialog-copy h2 {
    font-size: 23px;
    margin: 7px 0 15px;
  }
  .dialog-copy > p:not(.eyebrow) {
    font-size: 12px;
  }
}
@media (max-width: 370px) {
  .app {
    width: calc(100% - 20px);
  }
  .page-header nav {
    gap: 13px;
  }
  .moon-grid {
    grid-template-columns: 1fr;
  }
  .moon-copy > p:not(.eyebrow) {
    min-height: 0;
  }
  .moon-copy dl > div {
    display: flex;
  }
  .moon-copy dd {
    margin: 0;
  }
  .moon-picture {
    aspect-ratio: 1.9;
  }
  .moon-picture > span {
    font-size: 8px;
    left: 14px;
    top: 14px;
  }
  .moon-copy > .eyebrow {
    font-size: 9px;
  }
  .feature-badge {
    font-size: 9px;
  }
  .body-facts dd {
    font-size: 20px;
  }
  .mission-grid {
    grid-template-columns: 1fr;
  }
  .model-mount {
    height: 295px;
  }
  .europa-hero-facts {
    gap: 20px;
  }
  .panel-heading {
    padding: 13px;
  }
  .status {
    font-size: 7px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}

/* Europa: keep the laboratory grid and warm paper, with an icy accent. */
:root {
  --accent: #56878e;
}

@media (max-width: 760px) {
  .model-controls {
    padding-right: 54px;
    gap: 4px;
  }
}
.surface-section {
  margin: 64px 0 70px;
}
.surface-intro {
  display: grid;
  grid-template-columns: 1fr 1.08fr;
  gap: 58px;
  align-items: center;
  margin: 30px 4px;
}
.surface-intro h3 {
  font-size: 28px;
  font-weight: 450;
  line-height: 1.6;
  margin: 0 0 17px;
}
.surface-intro p {
  font-size: 13px;
  line-height: 2;
  color: #776b5c;
}
.surface-intro .text-link {
  display: inline-block;
  margin-top: 7px;
}
.size-comparison {
  margin: 0;
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #faf7f0b0;
}
.size-comparison svg {
  width: 100%;
  display: block;
}
.size-comparison text {
  font: 11px var(--mono);
  fill: #726f61;
}
.size-comparison text.svg-note {
  font-size: 9px;
  fill: var(--muted);
}
.size-comparison figcaption {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 12px;
  margin-top: 12px;
  font-size: 11px;
  color: var(--muted);
}
.size-comparison strong {
  font: 30px var(--mono);
  color: var(--ice);
}
.size-comparison small {
  font-size: 9px;
}
.surface-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 23px;
  margin-top: 30px;
}
.terrain-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  background: #faf7f0bd;
}
.terrain-card > div {
  padding: 24px 27px;
}
.terrain-card h3 {
  font-size: 22px;
  font-weight: 450;
  margin: 9px 0 13px;
}
.terrain-card p:not(.eyebrow) {
  font-size: 12px;
  line-height: 1.95;
  color: #796e5c;
}
.terrain-card .image-credit {
  font: 9px/1.8 var(--mono) !important;
  color: #9a8d7a !important;
  margin-top: 20px;
}
.terrain-card .photo-button img {
  height: 330px;
}
.terrain-card .eyebrow {
  color: var(--ice);
}
.orbit-panel {
  margin-top: 62px;
}
.orbit-readings strong {
  font-size: 16px;
}
.orbit-reading > span:first-child::before {
  background: #7ba4a5;
}
.flexing-demo {
  border: 1px solid var(--line);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: #edf1e740;
  margin: 18px 0;
  padding: 5px 12px 12px;
}
.flexing-demo svg {
  width: 100%;
  max-width: 220px;
}
.flexing-demo span {
  font-size: 9px;
  color: var(--ice);
}
.phase-presets {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 4px 0 20px;
}
.phase-presets button {
  font-size: 10px;
  min-height: 31px;
  padding: 6px 12px;
  background: transparent;
}
.phase-presets [aria-pressed='true'] {
  background: #dce9e5;
  color: #3e7179;
  border-color: #8eafae;
}
.clipper-feature {
  display: grid;
  grid-template-columns: 1fr 1.13fr;
}
.clipper-feature-intro {
  padding: 35px 37px;
}
.clipper-feature-intro > .eyebrow {
  color: var(--ice);
}
.clipper-feature-intro h3 {
  font-size: 29px;
  line-height: 1.55;
  font-weight: 450;
  margin: 13px 0 20px;
}
.clipper-feature-intro p:not(.eyebrow) {
  font-size: 12px;
  line-height: 2;
  color: #776b5c;
  margin-bottom: 21px;
}
.instrument-study {
  border-left: 1px solid var(--line);
  background: #edf1ea50;
  padding: 30px 32px;
}
.instrument-study .eyebrow {
  color: var(--ice);
  font-size: 9px;
}
.instrument-study h4 {
  font-size: 22px;
  font-weight: 450;
  line-height: 1.6;
  margin: 9px 0 14px;
}
.instrument-study #instrument-copy {
  font-size: 12px;
  line-height: 2;
  color: #6c756c;
  min-height: 84px;
  margin-bottom: 24px;
}
.journey {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin: 35px 0 14px;
  padding: 0;
  gap: 16px;
}
.journey li {
  position: relative;
  padding: 21px 7px 5px;
  border-top: 1px solid #8ca6a0;
}
.journey li::before {
  content: '';
  position: absolute;
  left: 7px;
  top: -4px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #739692;
}
.journey li.future {
  border-top-style: dashed;
  border-color: #b8b4a0;
}
.journey li.future::before {
  background: var(--bg);
  border: 1px solid #91a5a1;
}
.journey span {
  font: 9px var(--mono);
  color: var(--ice);
}
.journey strong {
  font-size: 15px;
  font-weight: 500;
  display: block;
  margin: 12px 0 7px;
}
.journey p {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.8;
  margin: 0;
}
.journey-source {
  display: inline-block;
  margin: 5px 7px;
}
.mission-grid {
  margin-top: 38px;
}
@media (max-width: 1100px) {
  .surface-intro {
    gap: 30px;
  }
  .terrain-card .photo-button img {
    height: 300px;
  }
  .clipper-feature-intro {
    padding: 30px;
  }
  .instrument-study {
    padding: 27px;
  }
  .journey strong {
    font-size: 13px;
  }
}
@media (max-width: 760px) {
  .surface-section {
    margin: 45px 0 50px;
  }
  .surface-intro {
    grid-template-columns: 1fr;
    gap: 23px;
    margin: 24px 3px;
  }
  .surface-intro h3 {
    font-size: 24px;
  }
  .surface-intro h3 br {
    display: none;
  }
  .surface-intro p {
    font-size: 12px;
  }
  .size-comparison {
    padding: 16px 12px;
  }
  .size-comparison figcaption {
    flex-wrap: wrap;
    gap: 8px;
  }
  .size-comparison strong {
    font-size: 27px;
  }
  .surface-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 25px;
  }
  .terrain-card > div {
    padding: 21px;
  }
  .terrain-card h3 {
    font-size: 19px;
  }
  .terrain-card .photo-button img {
    height: 275px;
  }
  .orbit-panel {
    margin-top: 45px;
  }
  .orbit-readings strong {
    font-size: 16px;
  }
  .phase-presets {
    gap: 6px;
    margin-bottom: 17px;
  }
  .phase-presets button {
    font-size: 9px;
    padding: 6px 9px;
  }
  .clipper-feature {
    grid-template-columns: 1fr;
  }
  .clipper-feature-intro {
    padding: 26px 23px;
  }
  .clipper-feature-intro h3 {
    font-size: 25px;
  }
  .instrument-study {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding: 24px 19px;
  }
  .instrument-study .layer-tabs button {
    font-size: 10px;
    padding: 8px 5px;
  }
  .instrument-study h4 {
    font-size: 20px;
  }
  .instrument-study #instrument-copy {
    min-height: 94px;
  }
  .journey {
    grid-template-columns: 1fr;
    gap: 0;
    margin: 26px 6px 12px;
    padding-left: 13px;
    border-left: 1px dashed #91a5a1;
  }
  .journey li {
    border-top: 0 !important;
    padding: 4px 5px 23px 12px;
  }
  .journey li::before {
    left: -17px;
    top: 8px;
  }
  .journey strong {
    font-size: 15px;
    display: inline-block;
    margin: 0 0 7px 12px;
  }
  .journey p {
    font-size: 11px;
  }
  .journey span {
    font-size: 9px;
  }
  .journey-source {
    margin-left: 6px;
  }
  .mission-grid {
    margin-top: 30px;
  }
}