:root {
  --bg: #05030c;
  --ink: #f4efe6;
  --muted: #9a9288;
  --line: rgba(244, 239, 230, 0.12);
  --gold: #e8c872;
  --panel: rgba(10, 8, 18, 0.72);
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: Outfit, sans-serif;
  overflow: hidden;
}

body {
  min-height: 100vh;
}

#stars {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
}

.nebula,
.vignette,
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.nebula {
  z-index: 1;
  background:
    radial-gradient(ellipse 50% 40% at 18% 20%, rgba(88, 42, 120, 0.22), transparent 60%),
    radial-gradient(ellipse 45% 35% at 86% 78%, rgba(28, 62, 120, 0.2), transparent 62%),
    radial-gradient(ellipse 30% 28% at 70% 18%, rgba(180, 90, 40, 0.08), transparent 55%);
}

.vignette {
  z-index: 2;
  background: radial-gradient(ellipse at center, transparent 40%, rgba(5, 3, 12, 0.72) 100%);
}

.grain {
  z-index: 3;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.topbar,
.view,
.hint,
.dossier {
  position: relative;
  z-index: 4;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.25rem 2rem 0;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.back-site {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.back-site:hover {
  color: var(--gold);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink);
  text-decoration: none;
  font-family: "Cormorant Garamond", serif;
  font-size: 1.55rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.wordmark-mark {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #fff3c4, #ff9a2e 45%, #ff6a00);
  box-shadow: 0 0 16px rgba(255, 170, 60, 0.8);
}

.eyebrow {
  margin: 0;
  color: var(--muted);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  font-size: 0.72rem;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.ghost,
.cta,
.back {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.45rem 0.95rem;
  font: 500 0.8rem Outfit, sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}

.ghost:hover,
.cta:hover,
.back:hover {
  border-color: rgba(232, 200, 114, 0.45);
  color: var(--gold);
}

.speed {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.speed input {
  accent-color: var(--gold);
  width: 7rem;
}

.view {
  height: calc(100vh - 6.5rem);
}

.view[hidden],
.dossier[hidden],
.moon-note[hidden] {
  display: none !important;
}

.view-system {
  display: grid;
  grid-template-columns: 1fr minmax(280px, 360px);
}

.view-system:not(.is-open) {
  grid-template-columns: 1fr;
}

.system-stage {
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.system,
.local-system {
  position: relative;
  width: 0;
  height: 0;
}

.orbit-ring {
  position: absolute;
  left: 50%;
  top: 50%;
  border: 1px solid rgba(244, 239, 230, 0.18);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.orbit-ring.dwarf {
  border-style: dashed;
  border-color: rgba(244, 239, 230, 0.16);
}

.asteroid-belt {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.asteroid {
  position: absolute;
  width: 2px;
  height: 2px;
  border-radius: 50%;
  background: #cfc6b6;
  opacity: 0.45;
}

.sun,
.planet,
.moon,
.world {
  position: absolute;
  left: 0;
  top: 0;
  border: 0;
  padding: 0;
  border-radius: 50%;
  cursor: pointer;
  transform: translate(-50%, -50%);
}

.sun {
  width: 84px;
  height: 84px;
  background:
    radial-gradient(circle at 32% 30%, #fff6c8 0 12%, #ffd36a 28%, #ff9a2e 58%, #ff6a00 100%);
  box-shadow:
    0 0 28px 10px rgba(255, 176, 70, 0.7),
    0 0 110px 36px rgba(255, 130, 30, 0.38);
  z-index: 5;
}

.sun::after {
  content: "";
  position: absolute;
  inset: -18px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 180, 70, 0.22), transparent 68%);
  animation: pulse 6s ease-in-out infinite;
}

.world {
  overflow: visible;
  box-shadow: 0 0 0 0 rgba(255, 255, 255, 0);
  transition: box-shadow 0.25s ease, filter 0.25s ease;
}

.world:hover,
.world.is-selected {
  filter: brightness(1.12);
  box-shadow: 0 0 0 3px rgba(232, 200, 114, 0.28), 0 0 22px rgba(232, 200, 114, 0.25);
}

.world-label {
  position: absolute;
  left: 50%;
  top: calc(100% + 8px);
  transform: translateX(-50%);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  opacity: 0;
  pointer-events: none;
  white-space: nowrap;
  transition: opacity 0.2s ease;
}

.world:hover .world-label,
.world.is-selected .world-label {
  opacity: 1;
  color: var(--ink);
}

.shade {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  pointer-events: none;
}

.rings {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 320%;
  height: 78%;
  border: 0;
  border-radius: 50%;
  background:
    radial-gradient(
      ellipse,
      transparent 40%,
      rgba(232, 210, 160, 0.18) 46%,
      transparent 49%,
      transparent 54%,
      rgba(232, 210, 160, 0.45) 58%,
      transparent 64%
    );
  transform: translate(-50%, -50%) rotate(-22deg);
  pointer-events: none;
}

.rings.inner {
  width: 250%;
  height: 58%;
  opacity: 0.7;
  transform: translate(-50%, -50%) rotate(-22deg);
}

.rings.ice {
  transform: translate(-50%, -50%) rotate(78deg);
  background:
    radial-gradient(
      ellipse,
      transparent 46%,
      rgba(180, 220, 220, 0.35) 56%,
      transparent 64%
    );
}

.dossier {
  margin: 1rem 1.4rem 1.4rem 0;
  padding: 1.6rem 1.5rem 1.4rem;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--panel);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
  overflow: auto;
  animation: rise 0.35s ease;
}

.icon-close {
  position: absolute;
  top: 0.85rem;
  right: 0.95rem;
  width: 2rem;
  height: 2rem;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 1.4rem;
  cursor: pointer;
}

.dossier-kicker,
.moon-rail h3 {
  margin: 0 0 0.35rem;
  color: var(--gold);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-size: 0.68rem;
}

h1,
h2,
#planet-title {
  margin: 0;
  font-family: "Cormorant Garamond", serif;
  font-weight: 500;
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  line-height: 0.95;
}

.dossier h2 {
  font-size: 2.6rem;
}

.dossier-tag {
  margin: 0.7rem 0 1rem;
  color: var(--muted);
  font-style: italic;
  font-family: "Cormorant Garamond", serif;
  font-size: 1.15rem;
}

.dossier-copy,
.moon-note p {
  margin: 0 0 1.1rem;
  color: #d8d1c6;
  font-weight: 300;
  line-height: 1.65;
  font-size: 0.95rem;
}

.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem 1rem;
  margin: 0 0 1.2rem;
}

.stats div {
  border-top: 1px solid var(--line);
  padding-top: 0.45rem;
}

.stats dt {
  color: var(--muted);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.stats dd {
  margin: 0.2rem 0 0;
  font-size: 0.92rem;
}

.facts {
  margin: 0 0 1.3rem;
  padding-left: 1.1rem;
  color: #cfc6b8;
  font-size: 0.88rem;
  line-height: 1.55;
}

.facts li + li {
  margin-top: 0.45rem;
}

.cta {
  display: inline-flex;
  text-decoration: none;
  background: linear-gradient(180deg, #f0d78a, #c9a24a);
  color: #1a1408;
  border: 0;
  margin: 0.15rem 0 1.25rem;
}

.cta:hover {
  color: #1a1408;
  filter: brightness(1.06);
}

.cta[hidden] {
  display: none;
}

.planet-layout {
  display: grid;
  grid-template-columns: minmax(280px, 420px) 1fr;
  height: 100%;
}

.planet-copy {
  padding: 1.4rem 0 2rem 2rem;
  overflow: auto;
}

.back {
  display: inline-flex;
  text-decoration: none;
  margin-bottom: 1.4rem;
}

.planet-stage {
  position: relative;
  display: grid;
  place-items: center;
}

.moon-note {
  position: absolute;
  right: 1.5rem;
  bottom: 1.5rem;
  width: min(320px, 86%);
  padding: 1.1rem 1.15rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel);
  backdrop-filter: blur(16px);
}

.moon-note h3 {
  margin: 0 0 0.4rem;
  font-family: "Cormorant Garamond", serif;
  font-size: 1.7rem;
  font-weight: 500;
}

.moon-rail {
  margin-top: 0.4rem;
}

.moon-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 0.7rem;
}

.moon-card {
  width: 100%;
  text-align: left;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: inherit;
  border-radius: 14px;
  padding: 0.8rem 0.9rem;
  cursor: pointer;
}

.moon-card.is-active,
.moon-card:hover {
  border-color: rgba(232, 200, 114, 0.4);
}

.moon-card strong {
  display: block;
  font-family: "Cormorant Garamond", serif;
  font-size: 1.2rem;
  font-weight: 500;
}

.moon-card span {
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.empty-moons {
  color: var(--muted);
  font-style: italic;
  font-family: "Cormorant Garamond", serif;
}

.hint {
  position: fixed;
  left: 2rem;
  bottom: 1.1rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

@keyframes pulse {
  50% {
    transform: scale(1.08);
    opacity: 0.7;
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
}

@media (max-width: 900px) {
  body {
    overflow: auto;
  }

  .topbar {
    flex-wrap: wrap;
    padding: 1rem 1rem 0;
  }

  .eyebrow {
    order: 3;
    width: 100%;
  }

  .view {
    height: auto;
    min-height: calc(100vh - 8rem);
  }

  .view-system,
  .view-system.is-open,
  .planet-layout {
    grid-template-columns: 1fr;
  }

  .system-stage,
  .planet-stage {
    min-height: 62vh;
  }

  .dossier {
    margin: 0 1rem 5rem;
  }

  .planet-copy {
    padding: 1rem 1rem 2rem;
  }

  .hint {
    left: 1rem;
    right: 1rem;
  }
}