.ph-playground {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 270px;
  gap: 1rem;
  align-items: start;
}
.ph-simulation { min-width: 0; }
#physarum-canvas {
  display: block;
  width: 100%;
  height: max(260px, calc(100dvh - 280px));
  background: #010203;
  border: 1px solid var(--tui-border);
  border-radius: 6px;
  -webkit-tap-highlight-color: transparent;
}
#physarum-canvas[data-view="torus"] { cursor: grab; }
#physarum-canvas[data-view="torus"]:active { cursor: grabbing; }
#physarum-canvas:focus,
#physarum-canvas:focus-visible,
#physarum-canvas:active {
  outline: none !important;
  outline-offset: 0 !important;
  border-color: var(--tui-border) !important;
  box-shadow: none !important;
}
.ph-controls {
  min-width: 0;
  margin: 0;
  padding: .75rem 1rem;
  border: 1px solid var(--tui-border);
  border-radius: 6px;
}
.ph-controls legend { width: auto; padding: 0 .4rem; font-size: .85em; }
.ph-buttons { display: flex; gap: .6rem; margin-bottom: .6rem; }
.ph-controls button {
  width: auto; margin: 0; padding: .4rem .65rem; font-size: .8em;
  color: var(--tui-text); background: var(--tui-control); border: 1px solid var(--tui-border); border-radius: 4px;
}
.ph-parameter {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 3.7em;
  align-items: center;
  gap: .45rem;
  margin: .48rem 0;
}
.ph-parameter label { grid-column: 1 / -1; margin: 0; font-size: .76em; font-weight: normal; }
.ph-parameter input { width: 100%; min-width: 0; margin: 0; }
.ph-parameter output { font-size: .76em; text-align: right; font-variant-numeric: tabular-nums; }
.ph-view-row {
  display: flex; align-items: center; justify-content: space-between; gap: .5rem;
  margin-top: .75rem; padding-top: .65rem; border-top: 1px solid var(--tui-border);
}
.ph-view-row label { margin: 0; font-size: .76em; font-weight: normal; white-space: nowrap; }
.ph-view-row input { width: auto; margin: 0 .2rem 0 0; vertical-align: middle; }
.ph-controls [hidden], .ph-caption[hidden] { display: none; }
.ph-status, .ph-caption { margin: .5rem 0; font-size: .75em; color: var(--tui-muted); font-variant-numeric: tabular-nums; }
@media (max-width: 800px) {
  .ph-playground { grid-template-columns: minmax(0, 1fr); }
  #physarum-canvas { height: auto; aspect-ratio: 3 / 2; }
}
#main:has(.ph-playground) .page {
  width: 100%; padding-left: 0; padding-right: 0; margin-left: 0; margin-right: 0;
}