.playground-intro { margin-top: 12px; color: var(--muted); }
#molecule-form { margin-top: 28px; }
.molecular-playground fieldset { border: 0; padding: 0; margin: 0; min-width: 0; }
.molecule-fields { display: flex; align-items: end; gap: 12px; }
.molecule-fields label { display: grid; gap: 6px; }
.molecule-query-label { flex: 1; min-width: 0; }
.molecular-playground input, .molecular-playground select { font: inherit; color: inherit; min-width: 0; }
.molecule-fields input, .molecule-fields select { width: 100%; border: 1px solid var(--line); border-radius: 6px; background: var(--paper); height: 44px; padding: 7px 10px; }
.molecular-playground button { border: 1px solid var(--line); border-radius: 6px; padding: 7px 14px; background: var(--paper); min-height: 44px; }
.molecular-playground button:hover:not(:disabled) { border-color: var(--accent); }
.molecular-playground button:disabled { cursor: default; opacity: .55; }
.molecular-playground input:focus-visible, .molecular-playground select:focus-visible, .molecular-playground summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.molecular-playground .load-molecule, #play-pause { background: var(--accent); border-color: var(--accent); color: white; }
.input-help { color: var(--muted); margin-top: 10px; }
.molecular-playground .example-inputs { display: flex; align-items: baseline; gap: 10px; margin-top: 12px; }
.example-buttons { display: flex; flex-wrap: wrap; gap: 2px 12px; }
.example-buttons button { border: 0; border-radius: 0; min-height: 36px; padding: 4px 0; color: var(--accent); text-decoration: underline; text-underline-offset: 4px; text-decoration-color: transparent; }
.example-buttons button:hover, .example-buttons button[aria-pressed="true"] { text-decoration-color: currentColor; }
.load-status-row { min-height: 36px; margin: 10px 0 20px; color: var(--muted); }
#load-status[data-error="true"] { color: var(--accent); }
#retry-engine { margin-top: 10px; }
.life-controls { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 14px 20px; }
.life-buttons { display: flex; gap: 8px; }
.speed-control { display: flex; align-items: center; gap: 8px; }
#speed { width: 100px; accent-color: var(--accent); min-height: 44px; margin: 0; }
#speed-value { min-width: 2ch; text-align: right; font-variant-numeric: tabular-nums; }
.board-heading { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 4px 16px; margin: 18px 0 10px; font-variant-numeric: tabular-nums; }
#life-canvas { display: block; width: 100%; height: auto; aspect-ratio: 1; border: 1px solid var(--line); border-radius: 8px; background: #fafaf6; }
.simulation-status { color: var(--muted); margin-top: 8px; min-height: 28px; }
.how-it-works { margin-top: 26px; }
.how-it-works summary { cursor: pointer; color: var(--accent); }
.how-it-works p { margin-top: 16px; }
.no-script { margin-top: 20px; color: var(--accent); }
@media (max-width: 640px) {
  .molecule-fields { flex-wrap: wrap; }
  .molecule-fields > label:first-child { width: 100px; }
  .molecule-query-label { flex-basis: calc(100% - 112px); }
  .load-molecule { width: 100%; }
  .life-controls { gap: 12px; }
  .speed-control { flex: 1 1 100%; }
  #speed { flex: 1; }
}