:root {
  color-scheme: dark;
  --bg: #0c1012;
  --panel: #141a1f;
  --line: #293239;
  --muted: #8c9ba7;
  --text: #e9eff0;
  --accent: #b9f36b;
  --green: #73e5ae;
  --red: #ff807c;
  --blue: #75b9ff;
  --yellow: #efca74;
  --purple: #c7a2ff;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background:
    radial-gradient(ellipse at 65% 0, #17241e55, transparent 55%), var(--bg);
  font:
    14px/1.5 -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  color: var(--text);
}
button,
input,
select {
  font: inherit;
}
button,
select {
  border: 1px solid var(--line);
  background: #1b2329;
  color: var(--text);
  border-radius: 7px;
  padding: 9px 13px;
}
button {
  cursor: pointer;
  transition:
    background 0.15s,
    border-color 0.15s;
}
button:hover {
  background: #2c373d;
  border-color: #56646e;
}
button:focus-visible,
select:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
button:disabled {
  opacity: 0.5;
  cursor: wait;
}
header {
  height: 79px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 25px;
  padding: 0 3.5%;
  background: #11171bc9;
}
.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 25px;
  font-weight: 750;
  letter-spacing: -1px;
  color: var(--text);
  text-decoration: none;
}
.brand span {
  font-weight: 400;
  color: var(--accent);
  margin-left: -9px;
}
.header-note {
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 2px;
}
.version {
  margin-left: auto;
  color: var(--muted);
  font-size: 13px;
}
main {
  max-width: 1700px;
  margin: auto;
  padding: 32px 3.5%;
}
.heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  margin-bottom: 26px;
}
.eyebrow {
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 7px;
}
h1 {
  font-size: 32px;
  letter-spacing: -1.1px;
  line-height: 1.2;
  margin: 0 0 9px;
  font-weight: 620;
}
.heading p {
  color: var(--muted);
  margin: 0;
  font-size: 15px;
}
.secondary {
  background: transparent;
}
.modes {
  display: flex;
  border-bottom: 1px solid var(--line);
  margin-bottom: 24px;
  gap: 12px;
}
.modes button {
  border: 0;
  border-radius: 0;
  background: transparent;
  color: #78858f;
  padding: 13px 21px;
  border-bottom: 2px solid transparent;
  font-size: 12px;
}
.modes button span {
  font-size: 15px;
  margin-left: 10px;
}
.modes button.active {
  color: var(--accent);
  border-color: var(--accent);
  background: linear-gradient(0deg, #b9f36b0b, transparent);
}
.workspace {
  display: grid;
  grid-template-columns: 268px minmax(0, 1fr) 240px;
  gap: 20px;
  align-items: start;
}
.panel {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: linear-gradient(140deg, #1b232c60, transparent 55%), #141a1fd9;
  backdrop-filter: blur(16px);
}
.panel-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
}
.panel-title h2 {
  font-size: 15px;
  margin: 0;
  font-weight: 600;
}
.panel-title > span {
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 1px;
}
.panel-title p {
  color: var(--muted);
  margin: 4px 0 0;
  font:
    14px ui-monospace,
    monospace;
}
.controls {
  padding-bottom: 12px;
}
.controls .panel-title {
  border-bottom: 1px solid var(--line);
}
.control-group {
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
}
h3,
.control-group h3 {
  font-size: 11px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
  margin: 0 0 16px;
}
.control {
  margin: 13px 0;
}
.control-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}
.control-label label {
  color: #c5cfd5;
}
.number-wrap {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--muted);
  font-size: 11px;
}
.number-wrap input {
  width: 64px;
  background: #0e1418;
  border: 1px solid var(--line);
  border-radius: 5px;
  color: var(--text);
  padding: 4px;
  font:
    12px ui-monospace,
    monospace;
  text-align: right;
}
.control input[type="range"] {
  display: block;
  width: 100%;
  accent-color: var(--accent);
  height: 5px;
  margin: 15px 0 8px;
  cursor: pointer;
}
.control select {
  width: 100%;
  padding: 7px 8px;
  margin-top: 7px;
  font-size: 13px;
}
.gravity {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  margin: 9px 0;
}
.gravity button {
  font-size: 11px;
  padding: 4px 7px;
}
.help {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
  padding: 0 18px;
}
.center {
  min-width: 0;
}
.simulation {
  overflow: hidden;
}
.status {
  color: var(--accent) !important;
  background: #b9f36b0d;
  border: 1px solid #b9f36b20;
  border-radius: 5px;
  padding: 4px 7px;
  font-size: 10px !important;
}
.stage {
  position: relative;
  height: 380px;
  background:
    radial-gradient(ellipse at 50% 55%, #23373145, transparent 65%), #0e1418;
  border-top: 1px solid #232d32;
  border-bottom: 1px solid #232d32;
}
.stage canvas {
  width: 100%;
  height: 100%;
}
.stage-label,
.clock,
.scale-label {
  position: absolute;
  font:
    11px ui-monospace,
    monospace;
  color: #6e818e;
  pointer-events: none;
}
.stage-label {
  top: 17px;
  left: 20px;
  letter-spacing: 2px;
}
.clock {
  top: 17px;
  right: 20px;
  color: #b7c4cb;
}
.scale-label {
  bottom: 15px;
  left: 20px;
}
.toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 20px;
}
.primary {
  background: var(--accent);
  color: #142017;
  border-color: var(--accent);
  font-weight: 650;
  min-width: 115px;
}
.primary:hover {
  background: #cdfb91;
}
.speed {
  margin-left: auto;
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
}
.speed select {
  margin-left: 6px;
  padding: 7px;
}
.overlays {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 0 20px 16px;
  font-size: 11px;
  color: var(--muted);
}
.overlays label {
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
}
input[type="checkbox"] {
  accent-color: var(--accent);
}
.green {
  color: var(--green);
}
.red {
  color: var(--red);
}
.blue {
  color: var(--blue);
}
.yellow {
  color: var(--yellow);
}
.purple {
  color: var(--purple);
}
.presets {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 7px;
  margin: 17px 0;
}
.presets > span {
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 1px;
  margin-right: 3px;
}
.presets button {
  background: transparent;
  padding: 6px 8px;
  font-size: 11px;
}
.notice {
  font-size: 12px;
  line-height: 1.6;
  color: #9badb7;
  margin: 12px 0 18px;
  padding-left: 10px;
  border-left: 2px solid #66884a;
}
.charts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.chart {
  overflow: hidden;
  min-width: 0;
}
.chart .panel-title {
  padding: 15px 17px;
}
.chart select {
  font-size: 11px;
  padding: 4px;
  max-width: 125px;
}
.chart canvas {
  width: 100%;
  height: 160px;
  display: block;
}
.legend {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 10px;
  padding: 10px 17px 15px;
}
.wide {
  grid-column: 1/-1;
}
.wide canvas {
  height: 175px;
}
.dashboard {
  padding-bottom: 18px;
}
.dashboard .panel-title {
  border-bottom: 1px solid var(--line);
}
.live-dot {
  color: var(--green) !important;
}
.readout {
  margin: 0 19px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.readout label {
  display: block;
  color: var(--muted);
  font-size: 12px;
}
.readout strong {
  display: block;
  font:
    27px/1.35 ui-monospace,
    SFMono-Regular,
    monospace;
  letter-spacing: -1px;
  margin-top: 4px;
}
.readout strong small {
  font: 12px sans-serif;
  letter-spacing: 0;
  color: var(--muted);
  margin-left: 7px;
}
.dashboard h3 {
  margin: 23px 19px 13px;
}
.metric {
  display: flex;
  justify-content: space-between;
  gap: 6px;
  padding: 7px 19px;
  font-size: 12px;
}
.metric span {
  color: var(--muted);
}
.metric b {
  font:
    12px ui-monospace,
    monospace;
}
.balance {
  margin: 18px 15px 12px;
  padding: 12px;
  background: #b9f36b08;
  border: 1px solid #b9f36b24;
  border-radius: 8px;
}
.balance span,
.balance small {
  display: block;
  color: var(--muted);
  font-size: 10px;
}
.balance strong {
  display: block;
  color: var(--accent);
  font:
    20px ui-monospace,
    monospace;
  margin: 7px 0;
}
.backend {
  margin: 20px 18px 10px;
  font-size: 11px;
  color: var(--muted);
}
.duration-label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin: 0 18px;
}
.duration-label select {
  display: block;
  margin-top: 6px;
  width: 100%;
  font-size: 12px;
}
.theory {
  margin-top: 25px;
  padding: 18px 22px;
  color: var(--muted);
  font-size: 14px;
}
.theory summary {
  cursor: pointer;
  color: var(--text);
}
.theory a {
  color: var(--accent);
}
footer {
  display: flex;
  gap: 22px;
  color: var(--muted);
  font-size: 12px;
  margin: 30px 0 10px;
}
footer span:last-child {
  margin-left: auto;
}
#toast {
  position: fixed;
  bottom: 25px;
  left: 50%;
  transform: translateX(-50%);
  background: #2c3c30;
  border: 1px solid var(--accent);
  color: var(--text);
  border-radius: 8px;
  max-width: 90vw;
  padding: 14px 22px;
  z-index: 20;
  display: none;
}
[hidden] {
  display: none !important;
}
@media (min-width: 1550px) {
  .stage {
    height: 450px;
  }
}
@media (max-width: 1200px) {
  .workspace {
    grid-template-columns: 235px minmax(0, 1fr);
  }
  .dashboard {
    grid-column: 1/-1;
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
  .dashboard .panel-title {
    grid-column: 1/-1;
  }
  .dashboard #live {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-row: 2/5;
  }
  .dashboard h3 {
    margin-top: 15px;
  }
  .dashboard .balance {
    margin: 12px 18px;
  }
  .header-note {
    display: none;
  }
}
@media (max-width: 760px) {
  header {
    height: 65px;
    padding: 0 18px;
  }
  .version {
    font-size: 11px;
  }
  main {
    padding: 23px 15px;
  }
  .heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 15px;
  }
  h1 {
    font-size: 28px;
  }
  .heading p {
    font-size: 14px;
  }
  .modes {
    gap: 0;
    overflow-x: auto;
  }
  .modes button {
    padding: 12px 9px;
    white-space: nowrap;
    font-size: 10px;
  }
  .modes button span {
    font-size: 12px;
    margin-left: 4px;
  }
  .workspace {
    display: flex;
    flex-direction: column;
    gap: 18px;
  }
  .controls {
    width: 100%;
    order: 2;
  }
  .center {
    width: 100%;
    order: 1;
  }
  .dashboard {
    width: 100%;
    order: 3;
  }
  .stage {
    height: 360px;
  }
  .toolbar {
    padding: 13px 10px;
    gap: 5px;
  }
  .toolbar button {
    font-size: 12px;
    padding: 9px;
  }
  .primary {
    min-width: 88px;
  }
  .speed {
    font-size: 0;
  }
  .speed select {
    font-size: 12px;
  }
  .overlays {
    padding: 0 10px 13px;
    gap: 8px;
  }
  .charts {
    gap: 10px;
  }
  .chart .panel-title {
    padding: 12px 10px;
    flex-wrap: wrap;
  }
  .chart .panel-title h2 {
    font-size: 13px;
  }
  .chart canvas {
    height: 155px;
  }
  .legend {
    padding: 10px;
    font-size: 10px;
  }
  .dashboard {
    display: block;
  }
  .dashboard #live {
    display: grid;
  }
  .control-group {
    padding: 12px 18px;
  }
  footer span:nth-child(2) {
    display: none;
  }
  .theory {
    padding: 15px;
  }
  .presets {
    gap: 6px;
  }
  .presets > span {
    width: 100%;
  }
}
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}

/* Expanded laboratory */
.modes {
  flex-wrap: wrap;
  gap: 4px;
}
.modes button {
  padding: 12px 14px;
}
.modes button span {
  font-size: 14px;
}
.view-tools,
.phase-tools {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 0 18px 14px;
  color: var(--muted);
  font-size: 12px;
}
.view-tools label {
  display: flex;
  align-items: center;
  gap: 7px;
}
.view-tools select,
.phase-tools select {
  padding: 6px;
  font-size: 12px;
}
.view-tools button {
  margin-left: auto;
  padding: 7px 9px;
  font-size: 12px;
}
.phase-tools button {
  padding: 6px 9px;
  font-size: 12px;
}
.phase-tools select {
  max-width: 240px;
}
.phase-card canvas {
  height: 300px;
}
.phase-card .panel-title h2 {
  font-size: 14px;
}
.phase-card {
  background: linear-gradient(140deg, #202b3160, transparent 65%), #11191f;
}
.phase-card .legend {
  font-size: 12px;
}
.chaos-controls {
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
  margin: 16px 0;
  padding: 18px;
  border: 1px solid #c7a2ff44;
  background: #c7a2ff09;
  border-radius: 10px;
}
.chaos-controls h3 {
  font-size: 16px;
  letter-spacing: 0;
  text-transform: none;
  color: var(--text);
  margin: 5px 0;
}
.chaos-controls .eyebrow {
  color: var(--purple);
  font-size: 11px;
}
.chaos-controls label {
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 7px;
}
.chaos-controls select {
  font-size: 12px;
  padding: 6px;
}
.chaos-controls small {
  width: 100%;
  color: var(--muted);
  font-size: 12px;
}
.chaos-controls button {
  font-size: 12px;
}
.distance {
  font:
    22px ui-monospace,
    monospace;
  color: var(--purple);
  margin-left: 18px;
}
.metric b {
  white-space: nowrap;
}
.legend {
  font-size: 12px;
}
.presets button {
  font-size: 12px;
}
.focus-mode .workspace {
  grid-template-columns: 1fr;
}
.focus-mode .controls,
.focus-mode .dashboard {
  display: none;
}
.focus-mode .stage {
  height: 65vh;
  min-height: 400px;
}
.focus-mode .charts {
  grid-template-columns: 1fr 1fr;
}
.focus-mode .phase-card canvas {
  height: 400px;
}
@media (max-width: 760px) {
  .modes {
    display: grid;
    grid-template-columns: 1fr 1fr;
    overflow: visible;
  }
  .modes button {
    padding: 10px 6px;
    text-align: left;
  }
  .modes button span {
    font-size: 13px;
  }
  .view-tools {
    gap: 8px;
    padding: 0 12px 12px;
  }
  .view-tools button {
    margin-left: 0;
  }
  .phase-tools {
    gap: 7px;
    padding: 0 10px 10px;
  }
  .phase-tools select {
    max-width: 100%;
    width: 100%;
    font-size: 12px;
  }
  .phase-card canvas {
    height: 280px;
  }
  .phase-card .panel-title h2 {
    font-size: 14px;
  }
  .chaos-controls {
    padding: 14px;
  }
  .focus-mode .stage {
    min-height: 350px;
  }
  .focus-mode .charts {
    grid-template-columns: 1fr;
  }
  .focus-mode .chart {
    grid-column: 1/-1;
  }
}