:root {
  color-scheme: dark;
  --bg: #07090f;
  --panel: rgba(13, 18, 28, 0.78);
  --panel-border: rgba(255, 255, 255, 0.14);
  --text: #f4f1e8;
  --muted: #aab5c4;
  --accent: #f6c453;
  --accent-2: #78d4f7;
  --control: rgba(255, 255, 255, 0.1);
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input {
  font: inherit;
}

.app {
  position: relative;
  width: 100vw;
  height: 100vh;
  min-width: 320px;
  background:
    radial-gradient(circle at 22% 18%, rgba(246, 196, 83, 0.13), transparent 24rem),
    radial-gradient(circle at 78% 24%, rgba(120, 212, 247, 0.1), transparent 28rem),
    #07090f;
}

#space {
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
}

#space:active {
  cursor: grabbing;
}

.panel {
  position: absolute;
  z-index: 2;
  width: min(22rem, calc(100vw - 2rem));
  padding: 1rem;
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(18px);
}

.panel-left {
  top: 1rem;
  left: 1rem;
  display: grid;
  gap: 1rem;
}

.panel-right {
  top: 1rem;
  right: 1rem;
  max-height: calc(100vh - 6rem);
  overflow-y: auto;
}

.eyebrow {
  margin: 0 0 0.2rem;
  color: var(--accent-2);
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  line-height: 1.08;
}

h1 {
  font-size: clamp(1.75rem, 5vw, 2.7rem);
}

h2 {
  font-size: 1.45rem;
}

.controls-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
}

button {
  min-height: 2.45rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: var(--control);
  color: var(--text);
  cursor: pointer;
}

button:hover,
button:focus-visible {
  border-color: rgba(246, 196, 83, 0.75);
  outline: none;
}

.control {
  display: grid;
  grid-template-columns: 4.5rem 1fr 6.6rem;
  gap: 0.7rem;
  align-items: center;
  color: var(--muted);
  font-size: 0.9rem;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

output {
  text-align: right;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.switches {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.45rem;
}

.switches label {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 2.25rem;
  padding: 0 0.5rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.07);
  color: var(--muted);
  font-size: 0.86rem;
}

.switches input {
  margin: 0 0.35rem 0 0;
}

dl {
  display: grid;
  gap: 0.55rem;
  margin: 1rem 0 0;
}

dl div {
  display: grid;
  grid-template-columns: 6rem 1fr;
  gap: 0.7rem;
}

dt {
  color: var(--muted);
}

dd {
  margin: 0;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.note {
  margin: 1rem 0 0;
  color: var(--muted);
  line-height: 1.45;
}

.missions {
  margin-top: 1rem;
}

.missions h3 {
  margin: 0 0 0.55rem;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
}

.missions ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.missions li {
  padding: 0.38rem 0.55rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.07);
  color: var(--text);
  font-size: 0.84rem;
}

.planet-strip {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  left: 1rem;
  z-index: 2;
  display: flex;
  gap: 0.45rem;
  justify-content: center;
  overflow-x: auto;
  padding: 0.25rem;
}

.planet-strip button {
  min-width: 5.6rem;
  padding: 0 0.75rem;
  background: rgba(10, 13, 20, 0.72);
  white-space: nowrap;
}

.planet-strip button.active {
  border-color: var(--accent);
  background: rgba(246, 196, 83, 0.18);
}

.modal-shell {
  position: fixed;
  inset: 0;
  z-index: 5;
  background: #000;
}

.modal-shell[hidden] {
  display: none;
}

.modal {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background: #000;
}

.modal-header {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  z-index: 4;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.35rem;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.74), rgba(0, 0, 0, 0));
  pointer-events: none;
}

.close-button {
  width: auto;
  padding: 0 0.95rem;
  background: rgba(255, 255, 255, 0.13);
  pointer-events: auto;
}

#closeupCanvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
}

#closeupCanvas:active {
  cursor: grabbing;
}

.viewer-tools {
  position: absolute;
  right: 1.2rem;
  bottom: 1.2rem;
  z-index: 3;
  width: 10rem;
}

.viewer-tools button {
  width: 100%;
}

.region-popup {
  position: absolute;
  z-index: 5;
  display: grid;
  gap: 0.25rem;
  width: min(14rem, calc(100% - 1.5rem));
  padding: 0.75rem;
  border: 1px solid rgba(246, 196, 83, 0.48);
  border-radius: 8px;
  background: rgba(7, 10, 16, 0.93);
  box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.38);
  color: var(--text);
  pointer-events: none;
}

.explore-panel {
  position: absolute;
  top: 5.4rem;
  bottom: 0;
  left: 0;
  z-index: 3;
  width: min(24rem, 34vw);
  overflow-y: auto;
  padding: 1.25rem 1.35rem 2rem;
  border-right: 1px solid rgba(255, 255, 255, 0.14);
  background: linear-gradient(90deg, rgba(8, 9, 11, 0.88), rgba(8, 9, 11, 0.74));
  box-shadow: 1rem 0 3rem rgba(0, 0, 0, 0.35);
}

.region-popup[hidden] {
  display: none;
}

.region-popup strong {
  color: var(--accent);
  font-size: 0.9rem;
}

.region-popup span {
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.35;
}

.moon-label {
  position: absolute;
  z-index: 4;
  padding-left: 0.85rem;
  color: rgba(244, 241, 232, 0.76);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0;
  pointer-events: none;
  text-shadow: 0 0 0.65rem #000;
}

.moon-label::before {
  content: "";
  position: absolute;
  top: 0.34rem;
  left: 0;
  width: 0.48rem;
  height: 0.48rem;
  border: 1px solid rgba(244, 241, 232, 0.6);
  border-radius: 50%;
  box-shadow: 0 0 0.7rem rgba(255, 255, 255, 0.5);
}

.tagline {
  max-width: 28rem;
  margin: 0;
  color: var(--text);
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.45;
  text-align: center;
}

.explore-panel .tagline {
  text-align: left;
}

.closeup-stats {
  width: 100%;
}

.closeup-stats div {
  grid-template-columns: 6.2rem 1fr;
}

.closeup-copy {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.fact-section h3 {
  margin: 0 0 0.45rem;
  color: var(--accent-2);
  font-size: 0.84rem;
  text-transform: uppercase;
}

.fact-section p {
  margin: 0;
  color: var(--text);
  line-height: 1.55;
}

.fact-list {
  display: grid;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.fact-list li {
  position: relative;
  padding-left: 1rem;
  color: var(--text);
  line-height: 1.45;
}

.fact-list li::before {
  content: "";
  position: absolute;
  top: 0.65em;
  left: 0;
  width: 0.35rem;
  height: 0.35rem;
  border-radius: 50%;
  background: var(--accent);
}

@media (max-width: 760px) {
  .panel {
    width: calc(100vw - 2rem);
  }

  .panel-left {
    gap: 0.7rem;
    padding: 0.8rem;
  }

  .panel-right {
    top: auto;
    right: 1rem;
    bottom: 4.75rem;
    max-height: 38vh;
  }

  .control {
    grid-template-columns: 4rem 1fr 5.8rem;
    gap: 0.5rem;
  }

  .control output {
    grid-column: auto;
    text-align: right;
  }

  .switches {
    grid-template-columns: repeat(3, 1fr);
  }

  .explore-panel {
    top: auto;
    right: 0;
    bottom: 0;
    width: 100%;
    max-height: 38vh;
    border-top: 1px solid rgba(255, 255, 255, 0.14);
    border-right: 0;
    background: rgba(8, 9, 11, 0.86);
  }

  .viewer-tools {
    right: 0.75rem;
    bottom: calc(38vh + 0.75rem);
    width: 8.5rem;
  }
}