* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: var(--sim-paper);
  color: var(--sim-ink);
  font-family: var(--sim-font-sans, sans-serif);
}
header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border-bottom: 1px solid var(--sim-line);
}
a {
  color: var(--sim-accent);
}
h1 {
  font-size: 1.25rem;
  flex: 1;
  margin: 0;
}
h2 {
  font-size: 1rem;
  margin: 0.5rem 0;
}
main {
  max-width: 1200px;
  margin: auto;
  padding: 1rem;
}
.experiments {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
canvas {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  background: var(--sim-glass);
  touch-action: pan-y pinch-zoom;
  border: 1px solid var(--sim-line);
}
button,
select,
.import-button {
  font: inherit;
  background: var(--sim-glass);
  color: var(--sim-ink);
  border: 1px solid var(--sim-line-strong);
  padding: 0.6rem 0.8rem;
  border-radius: 0.3rem;
  cursor: pointer;
}
button:hover,
.import-button:hover {
  border-color: var(--sim-accent);
}
button:focus-visible,
canvas:focus-visible {
  outline: 2px solid var(--sim-accent);
  outline-offset: 2px;
}
.toolbar,
#actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin: 1rem 0;
}
#import {
  display: none;
}
dl {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}
dl div {
  min-width: 8rem;
}
dt {
  color: var(--sim-ink-soft);
  font-size: 0.85rem;
}
dd {
  margin: 0.25rem 0;
  font-size: 1.1rem;
}
aside {
  border-top: 1px solid var(--sim-line);
  padding-top: 0.5rem;
}
textarea {
  width: 100%;
  height: 12rem;
  background: var(--sim-glass);
  color: var(--sim-ink-soft);
  border: 1px solid var(--sim-line);
  font-family: var(--sim-font-mono, monospace);
}
#status {
  color: var(--sim-accent);
}
#checks dd {
  font-size: 0.85rem;
}
@media (max-width: 650px) {
  header {
    padding: 0.75rem;
    gap: 0.5rem;
  }
  h1 {
    font-size: 1rem;
  }
  main {
    padding: 0.75rem;
  }
  .experiments {
    gap: 0.5rem;
  }
  h2 {
    font-size: 0.85rem;
  }
  .toolbar button,
  .import-button {
    padding: 0.6rem;
  }
  dl {
    gap: 0.75rem;
  }
  dl div {
    min-width: 6rem;
  }
  #measures dd {
    font-size: 0.95rem;
  }
}

[hidden]{display:none!important}.primary-toolbar{margin:.6rem 0}.primary-toolbar output{margin-left:auto;font-variant-numeric:tabular-nums;color:var(--sim-ink-soft)}.legend{display:flex;flex-wrap:wrap;gap:.6rem 1.4rem;font-size:.8rem;color:var(--sim-ink-soft)}.legend span::before{content:"";display:inline-block;width:.5rem;height:.5rem;border-radius:50%;background:#58dca7;margin-right:.4rem}.legend span:nth-child(2)::before{background:#5baac9}.legend span:nth-child(3)::before{background:#ffd77c}.legend span:nth-child(4)::before{background:transparent;border:1px solid var(--sim-accent)}button:disabled{opacity:.45;cursor:default}#preview-description{font-size:.85rem;color:var(--sim-ink-soft)}#consequence{padding:.75rem 0;color:var(--sim-accent);font-variant-numeric:tabular-nums}details{margin-top:1rem;border-top:1px solid var(--sim-line);padding:.85rem 0}summary{cursor:pointer}body[data-experiment="living-tissue"] canvas{border-radius:.6rem;background:radial-gradient(ellipse,var(--sim-glass),var(--sim-paper))}#measures{border-bottom:1px solid var(--sim-line);padding-bottom:.8rem}#measures dd{font-size:.95rem;max-width:22rem;line-height:1.6}@media(max-width:650px){.experiments{grid-template-columns:1fr}.experiments section:nth-child(2){max-width:70%;margin:0 auto;width:100%}.legend{gap:.4rem 1rem}.primary-toolbar output{font-size:.8rem}.experiments section:nth-child(2) h2{font-size:.8rem;text-align:center}}

main{max-width:1400px;display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:0 1.25rem}#question,.primary-toolbar,.legend,#measures,main>details,#status{grid-column:1/-1}.experiments{grid-column:1;grid-row:4}aside{grid-column:2;grid-row:4;border-top:0;border-left:1px solid var(--sim-line);padding:1rem 0 1rem 1rem}#actions{align-items:stretch}#actions button{white-space:normal;text-align:left;width:100%;font-size:.9rem;min-height:44px}#condition{font-size:.9rem;line-height:1.6}#preview-description{line-height:1.6}@media(max-width:850px){main{grid-template-columns:1fr}.experiments{display:contents}.experiments section:first-child{grid-column:1;grid-row:4}aside{grid-column:1;grid-row:5;border-left:0;border-top:1px solid var(--sim-line);padding:.6rem 0}#measures{grid-row:6}.experiments section:nth-child(2){grid-column:1;grid-row:7;max-width:70%;width:100%;margin:auto}main>details{grid-row:8}#status{grid-row:9}#actions{display:grid;grid-template-columns:1fr 1fr;gap:.5rem}#actions button:last-child{grid-column:1/-1}}