@import url("https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Space+Grotesk:wght@400;500;600;700&display=swap");

:root {
  --ink: #f0f2ff;
  --muted: #9ba5c5;
  --dim: #667096;
  --line: rgba(157, 173, 229, 0.18);
  --panel: rgba(8, 13, 34, 0.73);
  --panel-strong: rgba(12, 18, 46, 0.9);
  --accent: #b9c5ff;
  --accent-strong: #7d92ff;
  --warm: #ffbe73;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #050816;
  color: var(--ink);
  font-family: "Space Grotesk", sans-serif;
}

body {
  min-width: 320px;
}

button,
input {
  font: inherit;
}

button {
  border: 0;
}

#c {
  position: fixed;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  outline: none;
  touch-action: none;
  overscroll-behavior: none;
}

.app-shell {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background:
    radial-gradient(circle at 12% 18%, rgba(62, 76, 148, 0.2), transparent 25%),
    linear-gradient(90deg, rgba(4, 8, 23, 0.75), transparent 55%);
}

.app-shell::after {
  position: absolute;
  inset: 0;
  z-index: -1;
  content: "";
  pointer-events: none;
  background: linear-gradient(180deg, rgba(4, 8, 23, 0.5), transparent 24%, transparent 72%, rgba(4, 8, 23, 0.55));
}

.topbar,
.viewport-copy,
.control-dock,
.tuning-panel,
#labels,
#toast {
  pointer-events: auto;
}

.topbar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 38px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 13px;
}

.brand-mark {
  position: relative;
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 1px solid rgba(255, 213, 155, 0.72);
  border-radius: 50%;
  box-shadow: 0 0 24px rgba(255, 185, 97, 0.28);
}

.brand-mark::before,
.brand-mark::after {
  position: absolute;
  content: "";
  border: 1px solid rgba(181, 196, 255, 0.55);
  border-radius: 50%;
  transform: rotate(-23deg);
}

.brand-mark::before {
  width: 44px;
  height: 15px;
}

.brand-mark::after {
  width: 15px;
  height: 44px;
  transform: rotate(-23deg);
}

.brand-mark span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--warm);
  box-shadow: 0 0 14px 4px rgba(255, 190, 115, 0.52);
}

.eyebrow,
.kicker,
.dock-heading,
.topbar-status,
.mono,
.range-hints,
.planet-label,
#status-value {
  font-family: "DM Mono", monospace;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.eyebrow {
  color: var(--dim);
  font-size: 9px;
  line-height: 1.4;
}

h1 {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.04em;
}

.topbar-status {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--muted);
  font-size: 10px;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #8ff0bb;
  box-shadow: 0 0 0 4px rgba(143, 240, 187, 0.11), 0 0 16px rgba(143, 240, 187, 0.7);
  animation: breathe 2.5s ease-in-out infinite;
}

.viewport-copy {
  position: absolute;
  top: 25%;
  left: 38px;
  width: min(360px, calc(100vw - 76px));
}

.kicker {
  margin-bottom: 15px;
  color: var(--warm);
  font-size: 10px;
}

.viewport-copy h2 {
  font-size: clamp(33px, 4vw, 59px);
  font-weight: 500;
  letter-spacing: -0.075em;
  line-height: 0.98;
  text-shadow: 0 5px 34px rgba(0, 0, 0, 0.4);
}

.viewport-copy h2 em {
  color: var(--accent);
  font-style: normal;
}

.intro {
  max-width: 310px;
  margin-top: 24px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.65;
}

.control-dock {
  position: absolute;
  right: 32px;
  bottom: 28px;
  width: min(330px, calc(100vw - 64px));
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.3), inset 0 1px rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(22px);
}

.dock-heading,
.control-label,
.range-hints {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.dock-heading {
  margin-bottom: 15px;
  color: var(--muted);
  font-size: 10px;
}

.mono {
  color: var(--dim);
  font-size: 9px;
}

.primary-control {
  width: 100%;
  padding: 11px 13px;
  border: 1px solid rgba(185, 197, 255, 0.3);
  border-radius: 9px;
  color: #08102d;
  background: var(--accent);
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  transition: transform 160ms cubic-bezier(0.23, 1, 0.32, 1), background 160ms ease, box-shadow 160ms ease;
}

.primary-control:hover {
  background: #d5dcff;
  box-shadow: 0 7px 22px rgba(125, 146, 255, 0.22);
}

.primary-control:active,
.text-control:active,
.toggle-chip:active {
  transform: scale(0.97);
}

.primary-control.is-paused {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.08);
}

.speed-control {
  margin: 19px 0 16px;
}

.control-label {
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 11px;
}

.control-label strong {
  color: var(--ink);
  font-family: "DM Mono", monospace;
  font-size: 11px;
  font-weight: 400;
}

input[type="range"] {
  width: 100%;
  height: 3px;
  border-radius: 4px;
  outline: none;
  background: linear-gradient(90deg, var(--accent-strong), rgba(255, 255, 255, 0.16));
  appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
  width: 14px;
  height: 14px;
  border: 3px solid #aab8ff;
  border-radius: 50%;
  background: #0a1030;
  box-shadow: 0 0 0 4px rgba(125, 146, 255, 0.12);
  cursor: grab;
  appearance: none;
}

.range-hints {
  margin-top: 7px;
  color: var(--dim);
  font-size: 8px;
}

.toggle-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px;
}

.toggle-chip {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 9px 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--dim);
  background: rgba(255, 255, 255, 0.025);
  cursor: pointer;
  font-size: 10px;
  text-align: left;
  transition: border-color 160ms ease, background 160ms ease, color 160ms ease, transform 160ms ease;
}

.toggle-chip:last-child {
  grid-column: 1 / -1;
}

.toggle-chip.is-active {
  border-color: rgba(152, 168, 255, 0.38);
  color: var(--ink);
  background: rgba(125, 146, 255, 0.12);
}

.chip-icon {
  position: relative;
  display: inline-block;
  width: 15px;
  height: 15px;
  flex: 0 0 15px;
}

.orbit-icon {
  border: 1px solid currentColor;
  border-radius: 50%;
  transform: rotate(25deg) scaleY(0.55);
}

.asteroid-icon::before,
.asteroid-icon::after {
  position: absolute;
  content: "";
  border-radius: 50%;
  background: currentColor;
}

.asteroid-icon::before {
  top: 2px;
  left: 3px;
  width: 4px;
  height: 4px;
  box-shadow: 6px 3px 0 -1px currentColor, 2px 9px 0 -1px currentColor, 9px 10px 0 -1px currentColor;
}

.label-icon {
  border: 1px solid currentColor;
  border-radius: 3px;
}

.label-icon::after {
  position: absolute;
  top: 4px;
  left: 3px;
  width: 7px;
  height: 1px;
  content: "";
  background: currentColor;
  box-shadow: 0 3px 0 currentColor;
}

.dock-footer {
  display: flex;
  justify-content: flex-end;
  gap: 14px;
  margin-top: 16px;
  padding-top: 13px;
  border-top: 1px solid var(--line);
}

.text-control {
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  font-family: "DM Mono", monospace;
  font-size: 9px;
  text-transform: uppercase;
  transition: color 160ms ease, transform 160ms ease;
}

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

.tuning-panel {
  position: absolute;
  top: 92px;
  right: 32px;
  opacity: 0.82;
}

.tuning-panel .dg.main {
  color: var(--muted);
}

.tuning-panel .dg.main .close-button {
  display: none;
}

.tuning-panel .dg.main > ul {
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--line);
}

.planet-label {
  position: fixed;
  z-index: 3;
  padding: 4px 6px;
  border: 1px solid rgba(157, 173, 229, 0.24);
  border-radius: 4px;
  color: rgba(224, 229, 255, 0.84);
  background: rgba(5, 8, 22, 0.62);
  font-size: 8px;
  opacity: 0;
  transform: translate3d(-50%, -50%, 0);
  transition: opacity 180ms ease;
  white-space: nowrap;
}

#toast {
  position: absolute;
  right: 32px;
  top: 28px;
  padding: 10px 13px;
  border: 1px solid rgba(143, 240, 187, 0.3);
  border-radius: 7px;
  color: #c8ffdc;
  background: rgba(15, 50, 38, 0.84);
  font-family: "DM Mono", monospace;
  font-size: 9px;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 180ms ease, transform 180ms ease;
}

#toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

#toast.is-error {
  border-color: rgba(255, 149, 149, 0.34);
  color: #ffd0d0;
  background: rgba(70, 22, 32, 0.84);
}

@keyframes breathe {
  0%, 100% { opacity: 0.55; transform: scale(0.86); }
  50% { opacity: 1; transform: scale(1.06); }
}

@media (max-width: 720px) {
  .topbar {
    padding: 20px;
  }

  .viewport-copy {
    top: 17%;
    left: 20px;
    width: 260px;
  }

  .viewport-copy h2 {
    font-size: 36px;
  }

  .intro {
    margin-top: 16px;
    font-size: 11px;
  }

  .control-dock {
    right: 20px;
    bottom: 18px;
    left: 20px;
    width: auto;
  }

  .tuning-panel {
    top: 72px;
    right: 20px;
  }

  #toast {
    top: 20px;
    right: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.fullscreen-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 11px;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--muted);
  background: rgba(8, 13, 34, 0.48);
  cursor: pointer;
  font-family: "DM Mono", monospace;
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 160ms ease, border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.fullscreen-toggle:hover,
.fullscreen-toggle[aria-pressed="true"] {
  border-color: rgba(185, 197, 255, 0.48);
  color: var(--ink);
  background: rgba(125, 146, 255, 0.12);
}

.fullscreen-toggle:active {
  transform: scale(0.97);
}

.fullscreen-icon {
  position: relative;
  display: inline-block;
  width: 12px;
  height: 12px;
  border: 1px solid currentColor;
}

.fullscreen-icon::before,
.fullscreen-icon::after {
  position: absolute;
  width: 4px;
  height: 4px;
  content: "";
  background: var(--panel-strong);
}

.fullscreen-icon::before {
  top: -2px;
  left: -2px;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
}

.fullscreen-icon::after {
  right: -2px;
  bottom: -2px;
  border-top: 1px solid currentColor;
  border-left: 1px solid currentColor;
}

.exit-icon {
  transform: rotate(45deg) scale(0.78);
}

body.cinema-mode {
  cursor: grab;
}

body.cinema-mode:active {
  cursor: grabbing;
}

body.cinema-mode .app-shell {
  background: transparent;
}

body.cinema-mode .app-shell::after,
body.cinema-mode .app-shell > *:not(#labels):not(#toast):not(#cinema-exit):not(.cinema-zoom-overlay) {
  display: none;
}

body.cinema-mode #labels,
body.cinema-mode #toast {
  display: none;
}

.cinema-exit {
  position: absolute;
  pointer-events: auto;
  top: 24px;
  right: 26px;
  display: none;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border: 1px solid rgba(185, 197, 255, 0.35);
  border-radius: 8px;
  color: rgba(240, 242, 255, 0.82);
  background: rgba(5, 8, 22, 0.62);
  cursor: pointer;
  font-family: "DM Mono", monospace;
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  backdrop-filter: blur(14px);
  transition: color 160ms ease, background 160ms ease, transform 160ms ease;
}

.cinema-exit span {
  padding: 2px 4px;
  border: 1px solid rgba(185, 197, 255, 0.22);
  border-radius: 3px;
  color: var(--dim);
  font-size: 8px;
}

.cinema-exit:hover {
  color: var(--ink);
  background: rgba(125, 146, 255, 0.18);
}

.cinema-exit:active {
  transform: scale(0.97);
}

.cinema-zoom-overlay {
  position: absolute;
  right: 26px;
  bottom: 24px;
  z-index: 4;
  display: none;
  gap: 10px;
  pointer-events: auto;
}

.cinema-zoom-overlay .zoom-button {
  width: 48px;
  min-height: 48px;
}

body.cinema-mode .cinema-exit {
  display: inline-flex;
}

body.cinema-mode .cinema-zoom-overlay {
  display: flex;
}

@media (max-width: 720px) {
  .topbar-actions {
    gap: 9px;
  }

  .fullscreen-toggle {
    padding: 7px;
    font-size: 0;
  }

  .cinema-exit {
    top: 16px;
    right: 16px;
    padding: 8px;
    font-size: 0;
  }

  .cinema-exit span {
    font-size: 8px;
  }

  .cinema-zoom-overlay {
    bottom: calc(16px + env(safe-area-inset-bottom));
    right: 16px;
    gap: 8px;
  }

  .cinema-zoom-overlay .zoom-button {
    width: 44px;
    height: 44px;
    min-height: 44px;
    font-size: 20px;
  }

  .fullscreen-toggle .fullscreen-icon {
    margin: 0;
  }
}

.reset-control {
  color: var(--warm);
}

.reset-control:hover {
  color: #ffd7a8;
}

.zoom-controls {
  display: grid;
  gap: 8px;
  margin-top: 16px;
}

.zoom-button-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.zoom-button {
  min-height: 42px;
  border: 1px solid rgba(181, 194, 255, 0.36);
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(127, 143, 226, 0.26), rgba(54, 64, 129, 0.3));
  color: #f4f5ff;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.zoom-button:hover {
  border-color: rgba(215, 221, 255, 0.88);
  background: linear-gradient(135deg, rgba(155, 171, 255, 0.38), rgba(72, 84, 163, 0.42));
  transform: translateY(-1px);
}

.zoom-button:focus-visible {
  outline: 2px solid #dce2ff;
  outline-offset: 2px;
}

.scene-loader {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: grid;
  place-content: center;
  gap: 8px;
  background: #02040d;
  color: #eef0ff;
  text-align: center;
  transition: opacity 260ms ease, visibility 260ms ease;
}

.scene-loader strong {
  font-size: 14px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.scene-loader small {
  color: rgba(226, 231, 255, 0.6);
  font-size: 12px;
}

.scene-loader.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-orbit {
  width: 38px;
  height: 38px;
  margin: 0 auto 8px;
  border: 1px solid rgba(173, 188, 255, 0.35);
  border-top-color: #e3b572;
  border-radius: 50%;
  animation: loader-spin 900ms linear infinite;
}

@keyframes loader-spin {
  to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  .loader-orbit { animation-duration: 1.8s; }
}

/* Mobile-only ergonomics. Desktop rules above remain unchanged. */
@media (max-width: 720px) {
  html,
  body {
    min-height: 100dvh;
    height: 100dvh;
  }


  .topbar {
    top: env(safe-area-inset-top);
    padding: 14px 14px 0;
  }

  .brand-lockup {
    gap: 10px;
  }

  .brand-mark {
    width: 27px;
    height: 27px;
  }

  .brand-mark::before {
    width: 38px;
    height: 13px;
  }

  .brand-mark::after {
    width: 13px;
    height: 38px;
  }

  .brand-mark span {
    width: 7px;
    height: 7px;
  }

  .eyebrow {
    font-size: 8px;
  }

  h1 {
    font-size: 15px;
  }

  .topbar-actions {
    gap: 8px;
  }

  .topbar-status {
    gap: 7px;
    font-size: 9px;
  }

  .fullscreen-toggle {
    min-width: 42px;
    min-height: 42px;
    justify-content: center;
    padding: 9px;
  }

  .viewport-copy {
    top: 15%;
    left: 14px;
    width: min(235px, calc(100vw - 28px));
  }

  .viewport-copy h2 {
    font-size: clamp(29px, 8.5vw, 36px);
    line-height: 1;
  }

  .kicker {
    margin-bottom: 11px;
    font-size: 9px;
  }

  .intro {
    max-width: 220px;
    margin-top: 14px;
    font-size: 10px;
    line-height: 1.5;
  }

  .control-dock {
    right: 12px;
    bottom: calc(10px + env(safe-area-inset-bottom));
    left: 12px;
    max-height: 42dvh;
    padding: 12px;
    border-radius: 14px;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-y;
  }

  .dock-heading {
    margin-bottom: 11px;
  }

  .primary-control,
  .zoom-button,
  .toggle-chip,
  .text-control {
    min-height: 44px;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
  }

  .primary-control {
    padding: 10px 12px;
  }

  .speed-control {
    margin: 14px 0 12px;
  }

  input[type="range"] {
    height: 6px;
    touch-action: pan-x;
  }

  input[type="range"]::-webkit-slider-thumb {
    width: 20px;
    height: 20px;
  }

  .zoom-controls {
    gap: 7px;
    margin-top: 12px;
  }

  .zoom-button-row {
    gap: 7px;
  }

  .zoom-button {
    min-height: 48px;
  }

  .toggle-grid {
    gap: 7px;
    margin-top: 12px;
  }

  .toggle-chip {
    gap: 8px;
    padding: 9px 8px;
  }

  .dock-footer {
    justify-content: space-between;
    gap: 4px;
    margin-top: 12px;
    padding-top: 10px;
  }

  .text-control {
    padding: 4px 5px;
    font-size: 8px;
  }

  .tuning-panel {
    top: 65px;
    right: 12px;
    left: auto;
    width: 240px;
    max-width: calc(100vw - 24px);
    max-height: 35dvh;
    overflow: auto;
    overscroll-behavior: contain;
    touch-action: pan-x pan-y;
  }

  .tuning-panel .dg.main {
    width: min(240px, calc(100vw - 24px)) !important;
  }

  .planet-label {
    max-width: 104px;
    padding: 4px 5px;
    overflow: hidden;
    font-size: 7px;
    text-overflow: ellipsis;
  }

  #toast {
    top: calc(62px + env(safe-area-inset-top));
    right: 12px;
    left: 12px;
    max-width: none;
    text-align: center;
  }

  .cinema-exit {
    top: calc(12px + env(safe-area-inset-top));
    right: 12px;
    min-width: 44px;
    min-height: 44px;
    justify-content: center;
    padding: 9px;
  }

  .cinema-zoom-overlay {
    bottom: calc(12px + env(safe-area-inset-bottom));
    right: 12px;
  }
}

@media (max-width: 380px) {
  .topbar-status {
    display: none;
  }

  .viewport-copy {
    top: 14%;
    width: min(214px, calc(100vw - 28px));
  }

  .viewport-copy h2 {
    font-size: 29px;
  }

  .intro {
    max-width: 204px;
    font-size: 9px;
  }

  .control-dock {
    max-height: 45dvh;
  }

  .dock-footer {
    gap: 1px;
  }

  .text-control {
    padding-right: 3px;
    padding-left: 3px;
    font-size: 7px;
  }
}