:root {
  /* Layout: Vollbild-3D-Bühne; links Regler-Spalte, rechts Datenkarte, unten Planetenleiste */
  --bg: #04050a;
  --panel: rgba(11, 14, 26, 0.74);
  --line: rgba(150, 170, 255, 0.18);
  --ink: #eceffa;
  --dim: #8f97b6;
  --accent: #ffc46b;
  --hz: #5fe0a0;
  --display: "Marcellus", Georgia, serif;
  --body: "IBM Plex Sans", system-ui, -apple-system, sans-serif;
  color-scheme: dark;
}
* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
  margin: 0;
}
body {
  background: var(--bg);
  color: var(--ink);
  font: 14px/1.45 var(--body);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}
canvas#gl {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
  cursor: grab;
}
canvas#gl:active {
  cursor: grabbing;
}
#labels {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.lbl {
  position: absolute;
  left: 0;
  top: 0;
  transform: translate(-50%, -50%);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dim);
  pointer-events: auto;
  cursor: pointer;
  background: none;
  border: 0;
  padding: 4px 6px;
  font-family: var(--body);
  white-space: nowrap;
  text-shadow:
    0 0 6px #000,
    0 0 2px #000;
}
.lbl:hover,
.lbl.on {
  color: var(--accent);
}
.panel {
  position: fixed;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
#ctl {
  left: 16px;
  top: 16px;
  width: 272px;
  max-height: calc(100% - 96px);
  overflow: auto;
  padding: 14px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
#ctl.closed > *:not(header) {
  display: none;
}
header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}
h1 {
  font: 400 21px/1.1 var(--display);
  margin: 0;
  letter-spacing: 0.02em;
  text-wrap: balance;
}
.sub {
  color: var(--dim);
  font-size: 12px;
  margin: 0;
}
.row {
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.row label {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--dim);
}
.row output {
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
  margin: 0;
  height: 18px;
}
.btns {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
button.b {
  font: 500 12.5px var(--body);
  color: var(--ink);
  background: rgba(150, 170, 255, 0.09);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 7px 10px;
  cursor: pointer;
}
button.b:hover {
  background: rgba(150, 170, 255, 0.18);
}
button.b.pri {
  background: var(--accent);
  color: #231603;
  border-color: transparent;
  font-weight: 600;
}
button.b.pri:hover {
  filter: brightness(1.1);
}
button.b[aria-pressed="true"] {
  border-color: var(--accent);
  color: var(--accent);
}
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.tog {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
#info {
  right: 16px;
  top: 16px;
  width: 250px;
  padding: 14px 16px;
}
#info h2 {
  font: 400 19px/1.15 var(--display);
  margin: 0 0 2px;
}
#info .typ {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}
.pill {
  border: 1px solid var(--hz);
  color: var(--hz);
  border-radius: 99px;
  padding: 1px 7px;
  font-size: 10px;
  letter-spacing: 0.06em;
}
dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 12px;
  margin: 0;
  font-size: 12.5px;
}
dt {
  color: var(--dim);
}
dd {
  margin: 0;
  text-align: right;
  font-variant-numeric: tabular-nums;
}
#bar {
  left: 50%;
  bottom: 14px;
  transform: translateX(-50%);
  max-width: calc(100% - 32px);
  padding: 7px;
  display: flex;
  gap: 5px;
  overflow-x: auto;
}
.chip {
  flex: none;
  display: flex;
  align-items: center;
  gap: 6px;
  font: 500 12px var(--body);
  color: var(--ink);
  background: none;
  border: 1px solid transparent;
  border-radius: 7px;
  padding: 5px 9px;
  cursor: pointer;
  white-space: nowrap;
}
.chip:hover {
  background: rgba(150, 170, 255, 0.12);
}
.chip.on {
  border-color: var(--accent);
  color: var(--accent);
}
.chip i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: block;
}
/* Zeitsteuerung: über der Planetenleiste */
#time {
  left: 50%;
  bottom: 66px;
  transform: translateX(-50%);
  width: min(460px, calc(100% - 32px));
  padding: 8px 10px 9px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.trow {
  display: flex;
  align-items: center;
  gap: 6px;
}
#clock {
  flex: 1;
  min-width: 0;
  color: var(--ink);
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.stepsel {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--dim);
}
select {
  font: 500 12px var(--body);
  color: var(--ink);
  background: rgba(150, 170, 255, 0.09);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 3px 6px;
}
select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
button.b.ico {
  flex: none;
  width: 32px;
  height: 30px;
  padding: 0;
  display: grid;
  place-items: center;
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
}
button.b.ico svg {
  width: 13px;
  height: 13px;
  fill: currentColor;
}
#tPlay .i-play,
#time.paused #tPlay .i-pause {
  display: none;
}
#time.paused #tPlay .i-play {
  display: block;
}
#scrub {
  flex: 1;
  min-width: 60px;
}
#scrubO {
  flex: none;
  min-width: 78px;
  text-align: right;
  font-size: 12px;
  color: var(--dim);
  font-variant-numeric: tabular-nums;
}
#time.paused #scrubO {
  color: var(--accent);
}
.lbl.moonlbl {
  font-size: 9.5px;
  letter-spacing: 0.06em;
  padding: 2px 4px;
  color: rgba(185, 192, 220, 0.62);
}
.lbl.moonlbl.on {
  color: #ffe2b0;
}
.lbl.moonlbl:hover {
  color: var(--accent);
}
#info .moonhead {
  margin: 10px 0 4px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dim);
}
#flash {
  position: fixed;
  inset: 0;
  background: #fff;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.7s ease-out;
}
#err {
  position: fixed;
  inset: 0;
  display: none;
  place-items: center;
  padding: 24px;
  text-align: center;
  color: var(--dim);
}
@media (max-width: 760px) {
  #ctl {
    width: auto;
    right: 16px;
    max-height: 55%;
  }
  #info {
    top: auto;
    bottom: 64px;
    left: 16px;
    right: 16px;
    width: auto;
    padding: 10px 14px;
  }
  #info dl {
    grid-template-columns: auto 1fr auto 1fr;
  }
  #time {
    bottom: 62px;
  }
  #info {
    bottom: 148px;
    max-height: 30%;
    overflow: auto;
  }
}
@media (prefers-reduced-motion: reduce) {
  #flash {
    transition: none;
  }
}
.back {
  position: fixed;
  z-index: 20;
  right: 16px;
  bottom: 18px;
  font:
    500 12px system-ui,
    sans-serif;
  color: #f3effc;
  background: rgba(10, 8, 22, 0.78);
  border: 1px solid rgba(190, 170, 255, 0.35);
  border-radius: 99px;
  padding: 7px 13px;
  text-decoration: none;
  white-space: nowrap;
}
.back:hover {
  border-color: #fff;
}
.back:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}