.pl-playground {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 1rem;
  align-items: start;
}
.pl-simulation { min-width: 0; }
.pl-viewport { position: relative; min-width: 0; }
#particle-life-canvas {
  display: block;
  width: 100%;
  height: max(320px, calc(100dvh - 285px));
  background: #010208;
  border: 1px solid var(--tui-border);
  border-radius: 6px;
  -webkit-tap-highlight-color: transparent;
}
#particle-life-canvas[data-view="3d"] { cursor: grab; }
#particle-life-canvas[data-view="3d"]:active { cursor: grabbing; }
#particle-life-canvas:focus,
#particle-life-canvas:focus-visible,
#particle-life-canvas:active {
  outline: none !important;
  outline-offset: 0 !important;
  border-color: var(--tui-border) !important;
  box-shadow: none !important;
}
.pl-cockpit {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: fill;
  border-radius: 6px;
  pointer-events: none;
  user-select: none;
}
.pl-cockpit[hidden] { display: none; }
.pl-controls {
  min-width: 0;
  margin: 0;
  padding: .75rem 1rem;
  border: 1px solid var(--tui-border);
  border-radius: 6px;
}
.pl-controls legend { width: auto; padding: 0 .4rem; font-size: .85em; }
.pl-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: .45rem; margin-bottom: .7rem; }
.pl-controls button {
  width: 100%; margin: 0; padding: .4rem .35rem; font-size: .7em;
  color: var(--tui-text); background: var(--tui-control); border: 1px solid var(--tui-border); border-radius: 4px;
}
.pl-parameter {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 3.8em;
  align-items: center;
  gap: .45rem;
  margin: .4rem 0;
}
.pl-parameter label { grid-column: 1 / -1; margin: 0; font-size: .72em; font-weight: normal; }
.pl-parameter input { width: 100%; min-width: 0; margin: 0; }
.pl-parameter output { font-size: .72em; text-align: right; font-variant-numeric: tabular-nums; }
.pl-matrix-heading { margin: .7rem 0 .35rem; font-size: .75em; }
.pl-matrix-heading span { float: right; color: var(--tui-muted); font-size: .85em; }
.pl-matrix {
  display: grid;
  grid-template-columns: 18px repeat(4, minmax(0, 1fr));
  gap: .3rem;
  align-items: center;
}
.pl-matrix input {
  width: 100%; min-width: 0; margin: 0; padding: .22rem .16rem;
  border: 1px solid var(--tui-border); border-radius: 3px; font-size: .64em;
  font-variant-numeric: tabular-nums; text-align: center;
  appearance: textfield;
  cursor: ew-resize;
  touch-action: none;
  user-select: none;
}
.pl-matrix input::-webkit-inner-spin-button,
.pl-matrix input::-webkit-outer-spin-button {
  margin: 0;
  appearance: none;
}
.pl-matrix input.is-selected {
  border-color: var(--tui-accent);
  box-shadow: inset 0 0 0 1px var(--tui-accent);
}
.pl-matrix input.is-dragging {
  color: var(--tui-active);
  background: var(--tui-bg);
}
.pl-dot { display: block; width: 11px; height: 11px; margin: auto; border-radius: 50%; }
.pl-type-0 { background: #38c7ff; }
.pl-type-1 { background: #ff577a; }
.pl-type-2 { background: #fac733; }
.pl-type-3 { background: #7af078; }
.pl-view-row { display: flex; gap: .45rem; margin-top: .75rem; padding-top: .65rem; border-top: 1px solid var(--tui-border); }
.pl-view-row button { width: auto; }
.pl-controls [hidden] { display: none; }
.pl-caption { margin: .5rem 0; font-size: .75em; color: var(--tui-muted); font-variant-numeric: tabular-nums; }
@media (max-width: 850px) {
  .pl-playground { grid-template-columns: minmax(0, 1fr); }
  #particle-life-canvas { height: auto; aspect-ratio: 3 / 2; }
}
#main:has(.pl-playground) .page {
  width: 100%; padding-left: 0; padding-right: 0; margin-left: 0; margin-right: 0;
}