:root {
  font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:#292b40;
  background:#f5f6fa;
  font-synthesis:none;
  --purple:#6852db;
  --muted:#737789;
  --line:#e9eaf1;
  --surface:#fff;
}
.lab-nav {
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-left:auto;
  font-size:14px;
}
.topbar:has(.lab-nav) {
  height:auto;
  min-height:76px;
  padding-top:12px;
  padding-bottom:12px;
  flex-wrap:wrap;
}
.lab-nav a {
  padding:10px 12px;
  border-radius:7px;
}
.lab-nav a[aria-current] {
  background:#eeebfb;
  color:#5842bb;
}
input[aria-invalid=true]:not(:disabled) {
  outline:2px solid #b34d67;
  outline-offset:2px;
}
@media(max-width:1050px) {
  .topbar .lab-label {
    display:none;
  }
  .lab-nav {
    font-size:13px;
  }
}
@media(max-width:700px) {
  .topbar:has(.lab-nav) {
    height:auto;
    min-height:76px;
    flex-wrap:wrap;
    padding:16px 20px;
    gap:12px;
  }
  .topbar:has(.lab-nav) .header-divider {
    display:none;
  }
  .lab-nav {
    width:100%;
    margin:0;
  }
  .lab-nav a {
    flex:1 1 40%;
    text-align:center;
  }
}
* {
  box-sizing:border-box;
}
body {
  margin:0;
}
button,input,select {
  font:inherit;
}
button,select,input[type=range],input[type=checkbox] {
  cursor:pointer;
}
button {
  transition:background .15s,box-shadow .15s,transform .15s;
}
button:hover {
  filter:brightness(.97);
}
button:active {
  transform:translateY(1px);
}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible {
  outline:3px solid #a591ef;
  outline-offset:3px;
}
button:disabled,input:disabled,select:disabled {
  cursor:not-allowed;
  opacity:.5;
}
button[hidden],[hidden] {
  display:none!important;
}
button {
  color:inherit;
}
a {
  color:inherit;
  text-decoration:none;
}
.topbar {
  height:76px;
  padding:0 40px;
  display:flex;
  align-items:center;
  gap:25px;
  background:#fff;
  border-bottom:1px solid var(--line);
}
.brand {
  display:flex;
  align-items:center;
  font-size:23px;
  font-weight:750;
  letter-spacing:-.8px;
  gap:0;
}
.brand>span:last-child {
  color:var(--purple);
}
.brand-mark {
  display:flex;
  align-items:center;
  justify-content:center;
  width:37px;
  height:37px;
  background:var(--purple);
  color:white;
  border-radius:10px;
  font-weight:650;
  margin-right:11px;
  position:relative;
  font-size:24px;
}
.brand-mark span {
  font-size:14px;
  position:absolute;
  right:2px;
  top:0;
}
.header-divider {
  height:23px;
  width:1px;
  background:var(--line);
}
.lab-label {
  font-size:12px;
  font-weight:650;
  letter-spacing:1.7px;
  color:#9294a2;
}
.header-right {
  margin-left:auto;
  font-size:14px;
  display:flex;
  align-items:center;
  gap:9px;
  color:var(--muted);
}
.status-dot,.live-dot,.footer-dot {
  height:6px;
  width:6px;
  border-radius:50%;
  background:#57a993;
  display:inline-block;
}
.demo-badge {
  margin-left:15px;
  padding:6px 10px;
  border:1px solid var(--line);
  border-radius:6px;
  font-size:12px;
  color:#858797;
}
main {
  max-width:1600px;
  margin:auto;
  padding:31px 40px 0;
}
.page-heading {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:15px;
}
.eyebrow {
  font-size:12px;
  letter-spacing:1.6px;
  font-weight:750;
  color:var(--purple);
  margin-bottom:9px;
}
h1 {
  font-size:30px;
  letter-spacing:-1.1px;
  line-height:1.2;
  margin:0;
  font-weight:700;
}
.page-heading p {
  color:var(--muted);
  font-size:14px;
  margin:10px 0 0;
}
.preset-row {
  display:flex;
  gap:8px;
  align-items:center;
  margin:26px 0 21px;
  flex-wrap:wrap;
}
.preset-row>span {
  font-size:12px;
  color:#8a8d9c;
  margin-right:6px;
}
.preset {
  border:1px solid #e3e4ee;
  background:#fff;
  border-radius:7px;
  padding:8px 11px;
  font-size:12px;
  font-weight:550;
}
.preset.active {
  background:#eeebfb;
  color:#6751cb;
  border-color:#d8d0f4;
}
.lab-grid {
  display:grid;
  grid-template-columns:252px minmax(420px,1fr) 286px;
  gap:18px;
  align-items:start;
}
.card {
  background:var(--surface);
  border:1px solid #e3e5ed;
  border-radius:12px;
  box-shadow:0 3px 7px #21254602;
  overflow:hidden;
}
.card-heading {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
}
h2 {
  margin:0;
  font-size:14px;
  font-weight:650;
  letter-spacing:-.2px;
}
.controls-card {
  padding:20px 19px;
}
.small-icon {
  font-size:19px;
  color:#9896ae;
}
.control {
  position:relative;
  margin-top:23px;
}
.control>label {
  font-size:14px;
  font-weight:550;
  display:block;
  padding-top:6px;
  max-width:65%;
}
.input-value {
  position:absolute;
  right:0;
  top:0;
  display:flex;
  align-items:center;
  justify-content:flex-end;
  border:1px solid #e5e4ec;
  border-radius:6px;
  height:29px;
  padding:0 6px;
  background:#fbfbfe;
  gap:2px;
}
.input-value input {
  width:42px;
  background:none;
  border:0;
  text-align:right;
  font-size:14px;
  color:#49425f;
  font-variant-numeric:tabular-nums;
  padding:0;
  appearance:textfield;
  -moz-appearance:textfield;
}
.input-value input::-webkit-inner-spin-button {
  appearance:none;
}
.input-value span {
  font-size:12px;
  color:#9894a6;
}
.control input[type=range] {
  width:100%;
  margin:17px 0 0;
  appearance:none;
  height:4px;
  border-radius:5px;
  background:linear-gradient(to right,var(--purple) 0%,var(--purple) var(--fill,30%),#eae8f4 var(--fill,30%),#eae8f4 100%);
  display:block;
  accent-color:var(--purple);
}
input[type=range]::-webkit-slider-thumb {
  appearance:none;
  width:13px;
  height:13px;
  border-radius:50%;
  background:white;
  border:3px solid var(--purple);
  box-shadow:0 1px 3px #6852db25;
}
input[type=range]::-moz-range-thumb {
  width:8px;
  height:8px;
  border-radius:50%;
  background:white;
  border:3px solid var(--purple);
}
.range-ends {
  display:flex;
  justify-content:space-between;
  margin-top:10px;
  font-size:12px;
  color:#777082;
}
.control-section {
  border-top:1px solid var(--line);
  margin-top:22px;
  padding-top:19px;
}
.control-section>.control:first-child {
  margin-top:0;
}
.microcopy {
  font-size:12px;
  line-height:1.5;
  color:#777082;
  margin:13px 0 0;
}
.gravity-label {
  font-size:14px;
  font-weight:550;
  display:block;
  margin-bottom:10px;
}
select {
  background:#fff;
  border:1px solid #e2e2ec;
  border-radius:7px;
  padding:8px 10px;
  font-size:14px;
  color:#555168;
  width:100%;
  height:36px;
}
.gravity-value {
  display:flex;
  align-items:center;
  margin-top:8px;
  gap:6px;
  color:#9894a5;
  font-size:12px;
}
.gravity-value input {
  width:65px;
  border:1px solid #e4e3ed;
  border-radius:5px;
  padding:5px;
  font-size:12px;
  background:#fff;
  text-align:right;
}
.gravity-value input:disabled {
  border-color:transparent;
  background:none;
  color:#696477;
  opacity:1;
  padding-left:0;
  width:47px;
}
.edit-note {
  color:#777082;
  line-height:1.5;
  font-size:12px;
  border-top:1px solid var(--line);
  padding-top:15px;
  margin:18px 0 0;
}
.input-error {
  font-size:12px;
  color:#a04357;
  line-height:1.5;
  margin:0;
}
.experiment-column,.insights-column {
  display:flex;
  flex-direction:column;
  gap:17px;
}
.scene-heading {
  padding:19px 21px 0;
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap:8px;
}
.scene-heading h2 {
  font-size:15px;
  margin-bottom:6px;
}
.secondary {
  color:#777082;
  font-size:12px;
}
.state-badge {
  font-size:12px;
  padding:5px 8px;
  border:1px solid #e2daf9;
  background:#f4f0fd;
  color:#8063bf;
  border-radius:5px;
  white-space:nowrap;
}
.scene-options {
  display:flex;
  gap:12px;
  align-items:center;
  margin:17px 21px 0;
  color:#827c93;
  font-size:12px;
}
.scene-options label {
  display:flex;
  align-items:center;
  gap:5px;
}
.scene-options input {
  margin:0;
  accent-color:var(--purple);
  width:12px;
  height:12px;
}
.scene-options>span {
  margin-left:auto;
  font:12px ui-monospace,monospace;
  color:#9991ab;
}
svg text {
  font-family:inherit;
}
.transport {
  display:flex;
  align-items:center;
  gap:8px;
  padding:15px 20px;
  border-top:1px solid var(--line);
}
.primary-button {
  background:var(--purple);
  border:1px solid var(--purple);
  color:white;
  padding:10px 15px;
  border-radius:7px;
  font-size:12px;
  font-weight:550;
  box-shadow:0 3px 5px #6852db1a;
  min-width:140px;
}
.primary-button>span {
  margin-right:6px;
  font-size:12px;
}
.icon-button,.step-button {
  height:36px;
  background:white;
  border:1px solid #e5e3ed;
  border-radius:7px;
  padding:0 12px;
  font-size:18px;
  color:#797087;
}
.step-button {
  font-size:12px;
  display:flex;
  align-items:center;
  gap:6px;
  padding:0 10px;
}
.transport-note {
  margin-left:auto;
  font-size:12px;
  color:#777082;
  white-space:nowrap;
}
.transport-note>span:first-child {
  margin:0 5px;
}
.metrics {
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  border-top:1px solid var(--line);
  background:#fdfcff;
  padding:17px 7px;
}
.metrics>div {
  padding:0 15px;
  border-right:1px solid var(--line);
}
.metrics>div:last-child {
  border:0;
}
.metrics>div>span {
  display:flex;
  justify-content:space-between;
  font-size:12px;
  letter-spacing:.6px;
  color:#777082;
  font-weight:550;
}
.metrics strong {
  display:block;
  font-size:22px;
  letter-spacing:-.7px;
  font-weight:550;
  font-variant-numeric:tabular-nums;
  margin-top:8px;
}
.metrics small {
  font-size:12px;
  font-weight:450;
  letter-spacing:0;
  color:#9a91aa;
}
.graph-card {
  padding:17px 19px 12px;
}
.graph-heading {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
}
.graph-heading h2 {
  font-size:12px;
}
.live-dot {
  width:5px;
  height:5px;
  margin-left:5px;
  background:#9779db;
}
.graph-footer {
  font-size:12px;
  display:flex;
  justify-content:space-between;
  gap:12px;
  color:#777082;
  margin-top:2px;
}
.insight-icon {
  color:#8a69ca;
  font-size:18px;
  margin-right:5px;
}
.equations-card {
  padding:19px;
}
.formula-icon {
  font:italic 20px Georgia,serif;
  color:#aaa0b9;
}
.equation-intro {
  font-size:12px;
  color:#777082;
  margin:8px 0 16px;
}
.challenge-card {
  background:linear-gradient(135deg,#eeebff,#f6f3ff);
  border:1px solid #e1daf8;
  border-radius:12px;
  padding:18px 19px;
  color:#6d5894;
}
.challenge-eyebrow {
  display:flex;
  justify-content:space-between;
  font-size:12px;
  font-weight:650;
  letter-spacing:1px;
  color:#9c86bd;
}
.challenge-card h2 {
  font-size:17px;
  letter-spacing:-.4px;
  margin-top:13px;
}
.challenge-card p {
  font-size:12px;
  line-height:1.7;
  color:#777082;
  margin:9px 0;
}
.challenge-card b {
  font-weight:550;
  color:#8b74a5;
}
.challenge-card .challenge-feedback {
  font-size:12px;
  line-height:1.7;
  min-height:33px;
}
.challenge-card .challenge-feedback.success {
  color:#337f66;
}
.challenge-card .challenge-feedback.miss {
  color:#a16a47;
}
.challenge-card>button {
  width:100%;
  padding:9px 11px;
  border:1px solid #cfc1ea;
  border-radius:6px;
  background:#ffffff55;
  color:#8368ab;
  text-align:left;
  font-size:12px;
  font-weight:550;
  margin-top:6px;
}
.challenge-card>button>span {
  float:right;
}
footer {
  display:flex;
  justify-content:space-between;
  gap:10px;
  padding:22px 0;
  color:#aaa6b5;
  font-size:12px;
}
.footer-dot {
  background:#a192c0;
  width:5px;
  height:5px;
  margin-right:5px;
}
@media(min-width:1450px) {
  .lab-grid {
    grid-template-columns:272px minmax(450px,1fr) 306px;
  }
  .control>label,.gravity-label {
    font-size:14px;
  }
  .control {
    margin-top:26px;
  }
  .control-section {
    margin-top:24px;
    padding-top:21px;
  }
  .microcopy,.edit-note {
    font-size:12px;
  }
  .challenge-card p {
    font-size:14px;
  }
}
@media(max-width:1250px) {
  .controls-card,.equations-card,.challenge-card {
    padding:16px;
  }
  main {
    padding:25px 24px 0;
  }
  .topbar {
    padding:0 24px;
  }
  .lab-grid {
    grid-template-columns:228px minmax(350px,1fr) 250px;
    gap:12px;
  }
  .transport {
    padding:14px;
  }
  .transport-note {
    display:none;
  }
  .metrics>div {
    padding:0 10px;
  }
  .metrics strong {
    font-size:19px;
  }
  .graph-heading {
    flex-wrap:wrap;
  }
}
@media(max-width:1050px) {
  .lab-grid {
    grid-template-columns:240px minmax(0,1fr);
  }
  .insights-column {
    grid-column:1/-1;
    display:grid;
    grid-template-columns:1fr 1fr 1fr;
    align-items:start;
  }
  .control {
    margin-top:20px;
  }
  .control-section {
    margin-top:18px;
    padding-top:17px;
  }
  .header-right .demo-badge {
    display:none;
  }
  h1 {
    font-size:28px;
  }
  .metrics>div>span {
    font-size:12px;
  }
  .metrics strong {
    font-size:22px;
  }
}
@media(max-width:700px) {
  main {
    padding:22px 16px 0;
  }
  .topbar {
    height:63px;
    padding:0 18px;
    gap:15px;
  }
  .brand {
    font-size:21px;
  }
  .brand-mark {
    width:31px;
    height:31px;
    font-size:21px;
    border-radius:8px;
  }
  .header-divider,.lab-label {
    display:none;
  }
  .header-right {
    font-size:12px;
  }
  .page-heading {
    align-items:flex-start;
  }
  h1 {
    font-size:25px;
    max-width:270px;
  }
  .page-heading p {
    font-size:14px;
    line-height:1.6;
    max-width:265px;
  }
  .eyebrow {
    font-size:12px;
  }
  .preset-row {
    gap:6px;
    margin:20px 0 16px;
  }
  .preset-row>span {
    width:100%;
    margin-bottom:3px;
  }
  .preset {
    font-size:12px;
    padding:8px;
  }
  .lab-grid {
    display:flex;
    flex-direction:column;
    gap:14px;
  }
  .experiment-column {
    width:100%;
    order:0;
  }
  .controls-card {
    order:1;
    width:100%;
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:0 22px;
    padding:19px;
  }
  .controls-card>.card-heading {
    grid-column:1/-1;
  }
  .controls-card>.control {
    margin-top:18px;
  }
  .controls-card>.control-section {
    margin-top:18px;
  }
  .edit-note,.input-error {
    grid-column:1/-1;
  }
  .control>label {
    font-size:14px;
  }
  .microcopy,.edit-note {
    font-size:12px;
  }
  .range-ends {
    font-size:12px;
  }
  .insights-column {
    order:2;
    width:100%;
    display:flex;
    flex-direction:column;
  }
  .insights-column>section {
    width:100%;
  }
  .challenge-card p {
    font-size:14px;
  }
  .challenge-card .challenge-feedback {
    font-size:12px;
  }
  .challenge-card>button {
    font-size:14px;
    padding:12px;
  }
  .scene-heading {
    padding:17px 16px 0;
  }
  .scene-options {
    margin:15px 16px 0;
  }
  .metrics {
    padding:15px 0;
  }
  .metrics>div {
    padding:0 10px;
  }
  .metrics strong {
    font-size:19px;
  }
  .metrics>div>span {
    font-size:8px;
    letter-spacing:.4px;
  }
  .metrics small {
    font-size:12px;
  }
  .transport {
    padding:13px 15px;
  }
  .primary-button {
    font-size:14px;
    min-width:145px;
  }
  .graph-footer {
    font-size:12px;
  }
  .graph-card {
    padding:16px 12px;
  }
  .graph-heading h2 {
    font-size:12px;
  }
  .graph-heading {
    gap:10px;
  }
  footer {
    line-height:1.6;
    flex-wrap:wrap;
    font-size:12px;
  }
  .challenge-card h2 {
    font-size:20px;
  }
}
@media(prefers-reduced-motion:reduce) {
  button {
    transition:none;
  }
}
@media(max-width:480px) {
  .controls-card {
    display:block;
  }
  .control>label {
    font-size:14px;
  }
  .page-heading {
    position:relative;
    display:block;
  }
  .page-heading h1 {
    padding-top:17px;
    max-width:none;
    font-size:25px;
  }
  .page-heading p {
    max-width:none;
  }
  .eyebrow {
    max-width:150px;
    margin-bottom:13px;
  }
  .graph-heading {
    display:block;
  }
  .metrics strong {
    font-size:17px;
  }
  .metrics small {
    display:block;
    margin-top:3px;
  }
  .metrics>div>span {
    font-size:10px;
  }
  .graph-footer {
    font-size:11px;
  }
}
@media(max-width:480px) {
  .metrics>div {
    padding:0 7px;
  }
  .primary-button {
    min-width:0;
    flex:1;
  }
  .step-button {
    flex-shrink:0;
  }
  .transport .icon-button {
    padding:0 10px;
  }
  .metrics>div>span {
    font-size:9px;
    letter-spacing:0;
  }
}
.variable {
  font:italic 14px Georgia,serif;
  color:#8b8b9e;
  margin-left:5px;
}
.formula {
  font:italic 16px Georgia,"Times New Roman",serif;
  color:#524961;
  letter-spacing:.2px;
}