/*
 * NASA Observatory
 * Shared RYASTRA NASA-family interface: independent project, no official identity.
 */

:root {
  color-scheme: dark;
  --ink: #f4f7ff;
  --ink-soft: #c4cde0;
  --ink-muted: #8c98b0;
  --night: #050812;
  --night-raised: #0a1020;
  --panel: rgba(16, 24, 44, 0.82);
  --panel-solid: #10182c;
  --panel-hover: #15213b;
  --line: rgba(164, 184, 224, 0.18);
  --line-strong: rgba(164, 184, 224, 0.35);
  --cyan: #66e3ff;
  --cyan-bright: #a5f1ff;
  --cyan-soft: rgba(102, 227, 255, 0.13);
  --violet: #a995ff;
  --violet-soft: rgba(169, 149, 255, 0.14);
  --amber: #ffd479;
  --amber-soft: rgba(255, 212, 121, 0.13);
  --green: #79e6bd;
  --green-soft: rgba(121, 230, 189, 0.12);
  --red: #ff9b9b;
  --red-soft: rgba(255, 155, 155, 0.12);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
  --radius-sm: 0.55rem;
  --radius-md: 0.9rem;
  --radius-lg: 1.35rem;
  --content: 78rem;
  --reading: 48rem;
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

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

html {
  min-width: 18rem;
  background: var(--night);
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
}

body {
  position: relative;
  isolation: isolate;
  min-width: 18rem;
  min-height: 100vh;
  margin: 0;
  overflow-x: clip;
  background:
    radial-gradient(circle at 10% -5%, rgba(87, 103, 255, 0.2), transparent 34rem),
    radial-gradient(circle at 94% 11%, rgba(45, 207, 236, 0.11), transparent 30rem),
    radial-gradient(circle at 50% 58%, rgba(169, 149, 255, 0.045), transparent 42rem),
    linear-gradient(180deg, #060a15 0%, var(--night) 48%, #070b14 100%);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.62;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::before,
body::after {
  position: fixed;
  z-index: -2;
  inset: 0;
  content: "";
  pointer-events: none;
}

body::before {
  background-image:
    radial-gradient(circle, rgba(255, 255, 255, 0.62) 0 1px, transparent 1.35px),
    radial-gradient(circle, rgba(113, 217, 255, 0.38) 0 1px, transparent 1.4px),
    radial-gradient(circle, rgba(255, 212, 121, 0.3) 0 0.75px, transparent 1.1px);
  background-position:
    0 0,
    4.8rem 7rem,
    9rem 2.5rem;
  background-size:
    11rem 11rem,
    17rem 17rem,
    23rem 23rem;
  -webkit-mask-image: linear-gradient(to bottom, #000 0, rgba(0, 0, 0, 0.78) 30rem, transparent 80rem);
  mask-image: linear-gradient(to bottom, #000 0, rgba(0, 0, 0, 0.78) 30rem, transparent 80rem);
  opacity: 0.18;
}

body::after {
  z-index: -1;
  background:
    linear-gradient(rgba(102, 227, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(102, 227, 255, 0.018) 1px, transparent 1px);
  background-size: 4rem 4rem;
  -webkit-mask-image: linear-gradient(to bottom, #000, transparent 52rem);
  mask-image: linear-gradient(to bottom, #000, transparent 52rem);
  opacity: 0.55;
}

button {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: var(--cyan);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--cyan-bright);
}

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

::selection {
  background: rgba(102, 227, 255, 0.28);
  color: #fff;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  padding: 0.6rem 0.9rem;
  border-radius: var(--radius-sm);
  background: var(--ink);
  color: var(--night);
  font-weight: 800;
  text-decoration: none;
  transform: translateY(-180%);
  transition: transform 160ms ease;
}

.skip-link:focus {
  color: var(--night);
  transform: translateY(0);
}

.site-header__inner,
main > section,
.site-footer__inner {
  width: min(calc(100% - 2rem), var(--content));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  z-index: 30;
  top: 0;
  border-bottom: 1px solid var(--line);
  background: rgba(5, 8, 18, 0.83);
  box-shadow: 0 0.5rem 2rem rgba(0, 0, 0, 0.12);
  -webkit-backdrop-filter: blur(18px) saturate(1.25);
  backdrop-filter: blur(18px) saturate(1.25);
}

.site-header__inner {
  display: flex;
  min-height: 4.5rem;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

.brand {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  gap: 0.75rem;
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
}

.brand::before {
  width: 1.05rem;
  height: 1.05rem;
  flex: 0 0 auto;
  border: 2px solid var(--cyan);
  border-radius: 50%;
  box-shadow:
    0 0 0 0.28rem rgba(102, 227, 255, 0.08),
    0 0 1.2rem rgba(102, 227, 255, 0.35);
  content: "";
}

.brand:hover {
  color: var(--ink);
}

.brand strong {
  color: var(--cyan);
  font-weight: inherit;
}

.site-nav {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 0.25rem;
}

.site-nav a {
  min-height: 2.75rem;
  padding: 0.58rem 0.7rem;
  border-radius: 999px;
  color: var(--ink-soft);
  font-size: 0.86rem;
  font-weight: 650;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav a:hover {
  background: var(--cyan-soft);
  color: var(--ink);
}

.utc-clock {
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

main {
  display: block;
  overflow: clip;
}

main > section {
  position: relative;
  padding-block: clamp(4.5rem, 8vw, 7.5rem);
}

main > section + section {
  border-top: 1px solid rgba(164, 184, 224, 0.1);
}

.eyebrow,
.card-kicker {
  margin: 0 0 0.75rem;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 750;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.card-kicker {
  margin-bottom: 0.55rem;
  font-size: 0.66rem;
  letter-spacing: 0.11em;
}

h1,
h2,
h3 {
  margin-top: 0;
  color: var(--ink);
  font-weight: 780;
  letter-spacing: -0.035em;
  line-height: 1.08;
}

h1 {
  max-width: 11.5ch;
  margin-bottom: 0;
  font-size: clamp(3.15rem, 7.4vw, 6.8rem);
}

h1 em {
  color: var(--cyan);
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 500;
  letter-spacing: -0.055em;
}

@supports (-webkit-background-clip: text) or (background-clip: text) {
  h1 em {
    background: linear-gradient(105deg, var(--cyan) 12%, #d6ceff 86%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(2.1rem, 4.8vw, 4rem);
}

h3 {
  margin-bottom: 0;
  font-size: 1.2rem;
}

.button {
  display: inline-flex;
  min-height: 2.9rem;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: rgba(164, 184, 224, 0.08);
  color: var(--ink-soft);
  font-weight: 750;
  text-decoration: none;
  transition:
    border-color 170ms ease,
    background-color 170ms ease,
    color 170ms ease,
    transform 170ms ease;
}

.button:hover:not(:disabled) {
  border-color: var(--cyan);
  background: var(--cyan-soft);
  color: var(--ink);
  transform: translateY(-1px);
}

.button:active:not(:disabled) {
  transform: translateY(1px);
}

.button:disabled {
  cursor: wait;
  opacity: 0.58;
}

.button--primary {
  border-color: rgba(102, 227, 255, 0.7);
  background: var(--cyan);
  color: #06101a;
}

.button--primary:hover:not(:disabled) {
  background: var(--cyan-bright);
  color: #06101a;
}

.button--compact {
  min-height: 2.6rem;
  padding: 0.48rem 0.8rem;
  font-size: 0.83rem;
}

/* Hero ------------------------------------------------------------------- */

.hero {
  display: grid;
  min-height: min(48rem, calc(100svh - 4.5rem));
  grid-template-columns: minmax(0, 1fr) minmax(19rem, 31rem);
  align-content: center;
  align-items: center;
  gap: clamp(2rem, 5vw, 6rem);
}

.hero__content {
  position: relative;
  z-index: 2;
}

.hero__lede {
  max-width: 43rem;
  margin: 1.5rem 0 0;
  color: var(--ink-soft);
  font-size: clamp(1.05rem, 1.8vw, 1.27rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.network-pulse {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 1rem;
  margin: 1.45rem 0 0;
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 0.73rem;
}

.status-label,
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.status-label::before,
.status-badge::before {
  width: 0.55rem;
  height: 0.55rem;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--ink-muted);
  content: "";
}

.status-label--loading::before {
  animation: pulse 1.35s ease-in-out infinite;
}

.status-label--live::before,
.status-badge--live::before {
  background: var(--green);
  box-shadow: 0 0 0.8rem rgba(121, 230, 189, 0.6);
}

.status-label--warning::before,
.status-badge--stale::before {
  background: var(--amber);
  box-shadow: 0 0 0.8rem rgba(255, 212, 121, 0.42);
}

.status-label--error::before,
.status-badge--degraded::before {
  background: var(--red);
  box-shadow: 0 0 0.8rem rgba(255, 155, 155, 0.45);
}

.status-badge--nodata::before {
  background: var(--ink-muted);
}

.observatory-visual {
  position: relative;
  width: min(39vw, 31rem);
  aspect-ratio: 1;
  justify-self: end;
  overflow: hidden;
  border: 1px solid rgba(102, 227, 255, 0.22);
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, rgba(102, 227, 255, 0.13), transparent 8%),
    radial-gradient(circle at 50% 50%, rgba(169, 149, 255, 0.08), transparent 55%),
    rgba(6, 11, 24, 0.68);
  box-shadow:
    inset 0 0 5rem rgba(102, 227, 255, 0.055),
    0 0 7rem rgba(60, 86, 196, 0.1);
}

.visual-grid,
.visual-scan,
.visual-orbit,
.visual-axis,
.visual-core,
.visual-node,
.visual-label,
.visual-readout {
  position: absolute;
}

.visual-grid {
  inset: 0;
  background:
    linear-gradient(rgba(102, 227, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(102, 227, 255, 0.06) 1px, transparent 1px);
  background-size: 12.5% 12.5%;
  -webkit-mask-image: radial-gradient(circle, #000, transparent 72%);
  mask-image: radial-gradient(circle, #000, transparent 72%);
  opacity: 0.7;
}

.visual-scan {
  z-index: 1;
  top: 50%;
  left: 50%;
  width: 47%;
  height: 1px;
  background: linear-gradient(90deg, rgba(102, 227, 255, 0.9), transparent);
  box-shadow: 0 0 1rem rgba(102, 227, 255, 0.45);
  transform-origin: left center;
  animation: scan 11s linear infinite;
}

.visual-scan::before {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 8rem;
  background: conic-gradient(
    from 270deg at 100% 100%,
    transparent 0deg,
    rgba(102, 227, 255, 0.06) 30deg,
    transparent 50deg
  );
  content: "";
  transform-origin: right bottom;
}

.visual-orbit {
  top: 50%;
  left: 50%;
  border: 1px solid rgba(164, 184, 224, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.visual-orbit--one {
  width: 36%;
  height: 36%;
}

.visual-orbit--two {
  width: 62%;
  height: 62%;
  border-color: rgba(169, 149, 255, 0.24);
}

.visual-orbit--three {
  width: 86%;
  height: 86%;
  border-color: rgba(102, 227, 255, 0.17);
}

.visual-axis {
  top: 50%;
  left: 50%;
  background: rgba(164, 184, 224, 0.13);
  transform: translate(-50%, -50%);
}

.visual-axis--x {
  width: 88%;
  height: 1px;
}

.visual-axis--y {
  width: 1px;
  height: 88%;
}

.visual-core {
  z-index: 4;
  top: 50%;
  left: 50%;
  display: grid;
  width: 4.2rem;
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid rgba(102, 227, 255, 0.55);
  border-radius: 50%;
  background: rgba(6, 19, 35, 0.94);
  box-shadow:
    0 0 0 0.55rem rgba(102, 227, 255, 0.06),
    0 0 2.5rem rgba(102, 227, 255, 0.24);
  transform: translate(-50%, -50%);
}

.visual-core::before,
.visual-core::after {
  position: absolute;
  border-radius: 50%;
  content: "";
}

.visual-core::before {
  width: 1.75rem;
  height: 1.75rem;
  border: 1px solid var(--cyan);
}

.visual-core::after {
  width: 0.55rem;
  height: 0.55rem;
  background: var(--cyan);
  box-shadow: 0 0 1rem var(--cyan);
}

.visual-core i {
  position: absolute;
  width: 5.7rem;
  height: 1.7rem;
  border: 1px solid rgba(169, 149, 255, 0.65);
  border-radius: 50%;
  transform: rotate(-24deg);
}

.visual-node {
  z-index: 5;
  width: 0.72rem;
  height: 0.72rem;
  border: 2px solid var(--night);
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 1rem rgba(102, 227, 255, 0.8);
}

.visual-node::after {
  position: absolute;
  inset: -0.45rem;
  border: 1px solid currentColor;
  border-radius: inherit;
  content: "";
  opacity: 0.4;
  animation: node-pulse 2.8s ease-out infinite;
}

.visual-node--weather {
  top: 19%;
  left: 57%;
  color: var(--amber);
  background: var(--amber);
  box-shadow: 0 0 1rem rgba(255, 212, 121, 0.8);
}

.visual-node--defense {
  top: 37%;
  left: 79%;
  color: var(--red);
  background: var(--red);
  box-shadow: 0 0 1rem rgba(255, 155, 155, 0.7);
}

.visual-node--tech {
  top: 68%;
  left: 72%;
  color: var(--violet);
  background: var(--violet);
  box-shadow: 0 0 1rem rgba(169, 149, 255, 0.75);
}

.visual-node--biology {
  top: 77%;
  left: 34%;
  color: var(--green);
  background: var(--green);
  box-shadow: 0 0 1rem rgba(121, 230, 189, 0.75);
}

.visual-node--worlds {
  top: 47%;
  left: 17%;
  color: var(--violet);
  background: var(--violet);
  box-shadow: 0 0 1rem rgba(169, 149, 255, 0.75);
}

.visual-node--imagery {
  top: 80%;
  left: 53%;
  color: var(--amber);
  background: var(--amber);
  box-shadow: 0 0 1rem rgba(255, 212, 121, 0.8);
}

.visual-node--mission {
  top: 27%;
  left: 31%;
  color: var(--green);
  background: var(--green);
  box-shadow: 0 0 1rem rgba(121, 230, 189, 0.75);
}

.visual-node--defense::after,
.visual-node--biology::after {
  animation-delay: 0.7s;
}

.visual-node--tech::after,
.visual-node--mission::after {
  animation-delay: 1.4s;
}

.visual-node--imagery::after {
  animation-delay: 2.1s;
}

.visual-label,
.visual-readout {
  z-index: 6;
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 0.59rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.visual-label--weather {
  top: 13%;
  left: 59%;
}

.visual-label--worlds {
  top: 48%;
  left: 4%;
}

.visual-label--imagery {
  top: 84%;
  left: 45%;
}

.visual-label--mission {
  top: 20%;
  left: 17%;
}

.visual-readout {
  right: 11%;
  bottom: 10%;
  color: var(--cyan);
}

.hero-metrics {
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(2.5rem, 6vw, 4.5rem) 0 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--line);
}

.hero-metric {
  min-height: 7.8rem;
  padding: 1.25rem;
  background: rgba(16, 24, 44, 0.92);
}

.hero-metric dt {
  color: var(--ink-muted);
  font-size: 0.78rem;
  font-weight: 650;
}

.hero-metric dd {
  margin: 0.45rem 0 0;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: clamp(1.8rem, 3.2vw, 2.65rem);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  letter-spacing: -0.06em;
  line-height: 1;
}

.hero-metric dd span {
  color: var(--ink-muted);
  font-size: 0.45em;
  letter-spacing: 0;
}

/* Network ---------------------------------------------------------------- */

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: clamp(2rem, 4vw, 3.25rem);
}

.section-heading > div:first-child {
  max-width: 47rem;
}

.section-heading h2 {
  max-width: 14ch;
  margin-bottom: 0;
}

.section-heading > p {
  max-width: 33rem;
  margin: 0 0 0.45rem;
  color: var(--ink-soft);
}

.network-controls {
  display: flex;
  flex-direction: column;
  align-items: end;
  gap: 0.75rem;
}

.network-controls p {
  margin: 0;
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 0.73rem;
  text-align: right;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.project-card {
  --card-accent: var(--cyan);
  --card-soft: var(--cyan-soft);
  position: relative;
  isolation: isolate;
  display: flex;
  min-width: 0;
  min-height: 31rem;
  flex-direction: column;
  overflow: hidden;
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(155deg, rgba(21, 33, 59, 0.82), rgba(10, 16, 32, 0.94) 56%),
    var(--panel-solid);
  box-shadow: 0 1.2rem 3.5rem rgba(0, 0, 0, 0.12);
  transition:
    border-color 190ms ease,
    box-shadow 190ms ease,
    transform 190ms ease;
}

.project-card::before {
  position: absolute;
  z-index: -1;
  top: 0;
  right: 0;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--card-accent), transparent);
  content: "";
  opacity: 0.72;
}

.project-card::after {
  position: absolute;
  z-index: -1;
  top: -5rem;
  right: -5rem;
  width: 11rem;
  height: 11rem;
  border-radius: 50%;
  background: radial-gradient(circle, var(--card-soft), transparent 68%);
  content: "";
  opacity: 0.82;
}

.project-card:hover {
  border-color: color-mix(in srgb, var(--card-accent) 46%, transparent);
  box-shadow: 0 1.6rem 4.5rem rgba(0, 0, 0, 0.24);
  transform: translateY(-3px);
}

.project-card--amber {
  --card-accent: var(--amber);
  --card-soft: var(--amber-soft);
}

.project-card--violet {
  --card-accent: var(--violet);
  --card-soft: var(--violet-soft);
}

.project-card--green {
  --card-accent: var(--green);
  --card-soft: var(--green-soft);
}

.project-card--red {
  --card-accent: var(--red);
  --card-soft: var(--red-soft);
}

.project-card--imagery {
  grid-column: 1 / -1;
}

.project-card--imagery.project-card--loading {
  min-height: 22rem;
}

.project-card--imagery:not(.project-card--loading) {
  display: grid;
  min-height: 0;
  grid-template-areas:
    "header header"
    "title metrics"
    "headline metrics"
    "gallery gallery"
    "footer footer";
  grid-template-columns: minmax(0, 1fr) minmax(25rem, 0.72fr);
  column-gap: clamp(1.5rem, 4vw, 3.5rem);
}

.project-card--imagery .project-card__header {
  grid-area: header;
}

.project-card--imagery .project-title {
  grid-area: title;
}

.project-card--imagery .project-headline {
  min-height: 0;
  grid-area: headline;
}

.project-card--imagery .card-metrics {
  grid-area: metrics;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.project-card--imagery .card-metrics > div:last-child:nth-child(odd) {
  grid-column: auto;
}

.project-card--imagery .project-footer {
  grid-area: footer;
}

.project-card__header {
  display: flex;
  min-height: 2.2rem;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
}

.project-identity {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 0.65rem;
}

.project-index {
  color: var(--card-accent);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 750;
}

.project-kicker {
  overflow: hidden;
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-overflow: ellipsis;
  text-transform: uppercase;
  white-space: nowrap;
}

.project-flags {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.45rem;
}

.new-badge {
  display: inline-flex;
  min-height: 1.5rem;
  align-items: center;
  padding: 0.18rem 0.42rem;
  border: 1px solid rgba(169, 149, 255, 0.38);
  border-radius: 999px;
  background: var(--violet-soft);
  color: #d5ccff;
  font-family: var(--font-mono);
  font-size: 0.57rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.status-badge {
  min-height: 1.5rem;
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 0.63rem;
  white-space: nowrap;
}

.status-badge::before {
  width: 0.43rem;
  height: 0.43rem;
}

.status-badge--live {
  color: var(--green);
}

.status-badge--stale {
  color: var(--amber);
}

.status-badge--degraded {
  color: var(--red);
}

.project-title {
  margin: 1.25rem 0 0;
  font-size: 1.5rem;
}

.project-headline {
  min-height: 4.65rem;
  margin: 0.65rem 0 0;
  color: var(--ink-soft);
  font-size: 0.94rem;
  line-height: 1.48;
}

.card-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 1.1rem 0 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--line);
}

.card-metrics > div {
  min-width: 0;
  min-height: 4.55rem;
  padding: 0.72rem;
  background: rgba(7, 12, 25, 0.72);
}

.card-metrics > div:last-child:nth-child(odd) {
  grid-column: 1 / -1;
}

.card-metrics dt {
  color: var(--ink-muted);
  font-size: 0.63rem;
  font-weight: 650;
  line-height: 1.3;
  overflow-wrap: anywhere;
}

.card-metrics dd {
  margin: 0.28rem 0 0;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 1.04rem;
  font-variant-numeric: tabular-nums;
  font-weight: 720;
  line-height: 1.2;
  overflow-wrap: anywhere;
}

.event-list {
  display: grid;
  gap: 0;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.event-list li {
  display: grid;
  grid-template-columns: 5.5rem minmax(0, 1fr);
  gap: 0.65rem;
  align-items: baseline;
  padding: 0.48rem 0;
  border-top: 1px solid rgba(164, 184, 224, 0.11);
  font-size: 0.77rem;
  line-height: 1.42;
}

.event-list time {
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 0.63rem;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.event-list a,
.event-list span {
  min-width: 0;
  color: var(--ink-soft);
  text-decoration: none;
}

.event-list a:hover {
  color: var(--card-accent);
}

.imagery-gallery {
  display: grid;
  grid-area: gallery;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
}

.imagery-gallery li {
  min-width: 0;
}

.imagery-gallery__item {
  display: flex;
  height: 100%;
  min-width: 0;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(7, 12, 25, 0.72);
  color: var(--ink-soft);
  text-decoration: none;
  transition:
    border-color 170ms ease,
    background-color 170ms ease,
    transform 170ms ease;
}

a.imagery-gallery__item:hover {
  border-color: var(--card-accent);
  background: var(--card-soft);
  color: var(--ink);
  transform: translateY(-2px);
}

.imagery-gallery__media {
  position: relative;
  display: grid;
  aspect-ratio: 16 / 9;
  place-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 28% 24%, var(--amber-soft), transparent 45%),
    radial-gradient(circle at 72% 78%, var(--violet-soft), transparent 48%),
    rgba(5, 8, 18, 0.82);
}

.imagery-gallery__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 240ms ease;
}

a.imagery-gallery__item:hover .imagery-gallery__media img {
  transform: scale(1.035);
}

.imagery-gallery__fallback {
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.imagery-gallery__caption {
  display: grid;
  gap: 0.38rem;
  padding: 0.72rem;
}

.imagery-gallery__caption time {
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 0.61rem;
  font-variant-numeric: tabular-nums;
}

.imagery-gallery__title {
  display: -webkit-box;
  overflow: hidden;
  color: inherit;
  font-size: 0.76rem;
  line-height: 1.42;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.card-empty {
  display: flex;
  min-height: 4.35rem;
  align-items: center;
  margin: 1rem 0 0;
  padding: 0.75rem;
  border: 1px dashed var(--line);
  border-radius: var(--radius-md);
  background: rgba(7, 12, 25, 0.4);
  color: var(--ink-muted);
  font-size: 0.77rem;
}

.project-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  margin-top: auto;
  padding-top: 1.1rem;
}

.freshness {
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 0.62rem;
}

.open-link {
  display: inline-flex;
  min-height: 2.55rem;
  align-items: center;
  gap: 0.3rem;
  padding: 0.48rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--ink-soft);
  font-size: 0.75rem;
  font-weight: 750;
  text-decoration: none;
  white-space: nowrap;
}

.open-link:hover {
  border-color: var(--card-accent);
  background: var(--card-soft);
  color: var(--ink);
}

.project-card--loading .project-headline {
  min-height: 4.65rem;
}

.skeleton {
  position: relative;
  overflow: hidden;
  border-radius: 0.35rem;
  background: rgba(164, 184, 224, 0.09);
}

.skeleton::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(196, 205, 224, 0.1),
    transparent
  );
  content: "";
  transform: translateX(-100%);
  animation: shimmer 1.7s ease-in-out infinite;
}

.skeleton--title {
  width: 72%;
  height: 1.7rem;
  margin-top: 1.4rem;
}

.skeleton--line {
  width: 100%;
  height: 0.8rem;
  margin-top: 0.75rem;
}

.skeleton--line-short {
  width: 61%;
}

.skeleton--metrics {
  height: 5.1rem;
  margin-top: 1.35rem;
}

.noscript-note {
  margin-top: 1rem;
  padding: 1.2rem;
  border: 1px solid var(--amber);
  border-radius: var(--radius-md);
  background: var(--amber-soft);
}

.noscript-note h3 {
  margin-bottom: 0.45rem;
}

.noscript-note p {
  margin: 0;
  color: var(--ink-soft);
}

.noscript-note ul {
  columns: 2;
  margin: 0.75rem 0 0;
}

/* Apophis anchor --------------------------------------------------------- */

.anchor-section {
  display: grid;
  grid-template-columns: minmax(17rem, 0.78fr) minmax(0, 1.22fr);
  align-items: center;
  gap: clamp(2rem, 7vw, 7rem);
}

.anchor-copy h2 {
  max-width: 12ch;
}

.anchor-copy > p:not(.eyebrow) {
  max-width: 36rem;
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.04rem;
}

.anchor-copy strong {
  color: var(--green);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 1.35rem;
  font-weight: 750;
  text-decoration: none;
}

.countdown-panel {
  position: relative;
  isolation: isolate;
  min-height: 23rem;
  overflow: hidden;
  padding: clamp(1.25rem, 4vw, 2.25rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 77% 38%, rgba(169, 149, 255, 0.12), transparent 34%),
    linear-gradient(145deg, rgba(18, 28, 51, 0.94), rgba(7, 12, 25, 0.98));
  box-shadow: var(--shadow);
}

.countdown-panel::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  background:
    linear-gradient(rgba(102, 227, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(102, 227, 255, 0.025) 1px, transparent 1px);
  background-size: 3rem 3rem;
  content: "";
}

.countdown-panel__top,
.countdown-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem 1rem;
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.target-state {
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
  color: var(--green);
}

.target-state::before {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0.75rem rgba(121, 230, 189, 0.6);
  content: "";
}

.countdown-orbit {
  position: absolute;
  z-index: -1;
  top: 17%;
  right: -8%;
  width: 16rem;
  aspect-ratio: 1;
  border: 1px solid rgba(102, 227, 255, 0.17);
  border-radius: 50%;
}

.countdown-orbit span {
  position: absolute;
  inset: 22%;
  border: 1px solid rgba(169, 149, 255, 0.22);
  border-radius: 50%;
}

.countdown-orbit i {
  position: absolute;
  top: 22%;
  left: 6%;
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 1.2rem rgba(255, 212, 121, 0.85);
}

.countdown-label {
  margin: clamp(4rem, 9vw, 6.4rem) 0 0;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.tminus {
  margin-top: 0.55rem;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: clamp(1.55rem, 4vw, 3.25rem);
  font-variant-numeric: tabular-nums;
  font-weight: 680;
  letter-spacing: -0.055em;
  line-height: 1.1;
  white-space: nowrap;
}

.tminus strong {
  color: var(--amber);
  font-weight: inherit;
}

.tminus .unit {
  margin-right: 0.24em;
  color: var(--ink-muted);
  font-size: 0.47em;
  font-weight: 500;
  letter-spacing: 0;
}

.countdown-meta {
  justify-content: flex-start;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

/* Method ----------------------------------------------------------------- */

.method-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--line);
  list-style: none;
}

.method-grid li {
  position: relative;
  min-height: 18rem;
  padding: clamp(1.25rem, 3vw, 2rem);
  background:
    linear-gradient(150deg, rgba(18, 28, 51, 0.86), rgba(9, 15, 29, 0.96)),
    var(--panel-solid);
}

.method-number {
  display: block;
  margin-bottom: 3rem;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 750;
}

.method-grid h3 {
  margin-bottom: 0.7rem;
  font-size: 1.32rem;
}

.method-grid li > p:last-child {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

/* Footer ----------------------------------------------------------------- */

.site-footer {
  border-top: 1px solid var(--line);
  background: rgba(4, 7, 15, 0.76);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: minmax(15rem, 1.1fr) minmax(20rem, 1fr);
  gap: 2.5rem 5rem;
  padding-block: 3.5rem 2rem;
}

.footer-lead {
  max-width: 31rem;
}

.footer-lead p {
  margin: 0.8rem 0 0;
  color: var(--ink-muted);
  font-size: 0.86rem;
}

.footer-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.footer-links h2 {
  margin: 0 0 0.7rem;
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.footer-links ul {
  display: grid;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-links a {
  color: var(--ink-soft);
  font-size: 0.82rem;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--cyan);
}

.footer-credit,
.footer-meta {
  grid-column: 1 / -1;
  margin: 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  color: var(--ink-muted);
  font-size: 0.76rem;
}

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.2rem;
  margin-top: -2rem;
  padding-top: 0;
  border-top: 0;
  font-family: var(--font-mono);
  font-size: 0.65rem;
}

/* Motion ----------------------------------------------------------------- */

@keyframes scan {
  to {
    transform: rotate(360deg);
  }
}

@keyframes node-pulse {
  0% {
    opacity: 0.52;
    transform: scale(0.6);
  }
  75%,
  100% {
    opacity: 0;
    transform: scale(1.5);
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 0.5;
    transform: scale(0.86);
  }
  50% {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes shimmer {
  to {
    transform: translateX(100%);
  }
}

/* Responsive ------------------------------------------------------------- */

@media (max-width: 68rem) {
  .utc-clock {
    display: none;
  }

  .hero {
    grid-template-columns: minmax(0, 1fr) minmax(17rem, 26rem);
  }

  .project-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 52rem) {
  .site-header__inner {
    gap: 0.65rem;
  }

  .site-nav {
    overflow-x: auto;
    scrollbar-width: none;
  }

  .site-nav::-webkit-scrollbar {
    display: none;
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
  }

  .observatory-visual {
    position: absolute;
    z-index: -1;
    top: 1.5rem;
    right: -9rem;
    width: 27rem;
    opacity: 0.36;
  }

  .hero__content {
    max-width: 44rem;
  }

  .hero-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .section-heading {
    align-items: start;
    flex-direction: column;
    gap: 1rem;
  }

  .section-heading > p {
    margin: 0;
  }

  .network-controls {
    width: 100%;
    align-items: start;
  }

  .network-controls p {
    text-align: left;
  }

  .project-card--imagery:not(.project-card--loading) {
    grid-template-areas:
      "header"
      "title"
      "headline"
      "metrics"
      "gallery"
      "footer";
    grid-template-columns: minmax(0, 1fr);
  }

  .imagery-gallery {
    grid-auto-columns: minmax(12.5rem, 44%);
    grid-auto-flow: column;
    grid-template-columns: none;
    overflow-x: auto;
    padding-bottom: 0.4rem;
    scroll-snap-type: x proximity;
    scrollbar-color: var(--line-strong) transparent;
    scrollbar-width: thin;
  }

  .imagery-gallery li {
    scroll-snap-align: start;
  }

  .anchor-section {
    grid-template-columns: 1fr;
  }

  .method-grid {
    grid-template-columns: 1fr;
  }

  .method-grid li {
    min-height: 0;
  }

  .method-number {
    margin-bottom: 2rem;
  }
}

@media (max-width: 40rem) {
  .site-header__inner,
  main > section,
  .site-footer__inner {
    width: min(calc(100% - 1.25rem), var(--content));
  }

  .site-header__inner {
    min-height: 4rem;
  }

  .brand {
    font-size: 0.78rem;
  }

  .brand::before {
    width: 0.9rem;
    height: 0.9rem;
  }

  .site-nav a {
    font-size: 0.78rem;
  }

  main > section {
    padding-block: 4rem;
  }

  h1 {
    font-size: clamp(2.8rem, 14vw, 4.7rem);
  }

  h2 {
    font-size: clamp(2rem, 10vw, 3.1rem);
  }

  .hero {
    padding-top: 4.5rem;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-actions .button {
    width: 100%;
  }

  .hero-metric {
    min-height: 6.8rem;
    padding: 1rem;
  }

  .project-grid {
    grid-template-columns: 1fr;
  }

  .project-card {
    min-height: 29rem;
  }

  .tminus {
    font-size: clamp(1.35rem, 7.5vw, 2.25rem);
  }

  .countdown-meta {
    align-items: flex-start;
    flex-direction: column;
  }

  .noscript-note ul {
    columns: 1;
  }

  .site-footer__inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-links {
    gap: 1.25rem;
  }

  .footer-credit,
  .footer-meta {
    grid-column: 1;
  }

  .footer-meta {
    margin-top: -1rem;
  }
}

@media (max-width: 22rem) {
  .site-nav a:last-child {
    padding-inline: 0.45rem;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
  }

  .project-card {
    padding: 1rem;
  }

  .card-metrics {
    grid-template-columns: 1fr;
  }

  .project-card--imagery .card-metrics {
    grid-template-columns: 1fr;
  }

  .project-card--imagery .card-metrics > div:last-child:nth-child(odd) {
    grid-column: 1 / -1;
  }

  .footer-links {
    grid-template-columns: 1fr;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .project-card:hover,
  .button:hover:not(:disabled) {
    transform: none;
  }
}

@media (prefers-contrast: more) {
  :root {
    --line: rgba(196, 205, 224, 0.36);
    --line-strong: rgba(196, 205, 224, 0.66);
    --ink-muted: #abb7ce;
  }
}

@media (forced-colors: active) {
  .brand::before,
  .status-label::before,
  .status-badge::before,
  .visual-node,
  .target-state::before {
    forced-color-adjust: none;
  }

  .observatory-visual {
    border: 2px solid CanvasText;
  }
}