/* ============================================================
   Predator & Prey - layout

   The stage holds the field AND both charts. Under it: counts,
   playback, what a tap drops, Equations mode, presets, then
   the sliders (1 column on a phone, 2 when wider).

   Colours: grass = green, rabbits = cyan, foxes = orange.
   The legend, sliders and charts all wear the same ones.
   ============================================================ */

.pp-stage {
  --fox: #FF8A3D;
  cursor: crosshair;
  height: clamp(460px, min(84svh, 172vw), 720px);
}
.pp-stage:focus-visible { outline-offset: -3px; }

.pp-controls {
  --fox: #FF8A3D;
  display: grid;
  gap: .8rem;
  width: 100%;
  max-width: 860px;
  margin-inline: auto;
  padding: 1rem clamp(1rem, 4vw, 1.25rem) 0;
}

/* ---- counts ------------------------------------------------ */
.pp-legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .3rem 1.4rem;
  font-size: .9rem;
  color: var(--text-dim);
}
.pp-legend li { display: flex; align-items: center; gap: .4rem; min-width: 0; }
.pp-legend output { margin-left: .15rem; font-family: var(--font-mono); color: var(--text); }
.pp-key { width: .75rem; height: .75rem; border-radius: 50%; flex: none; }
.pp-key.is-grass { background: var(--green); border-radius: 2px; }
.pp-key.is-rabbit { background: var(--cyan); }
.pp-key.is-fox { background: var(--fox); }

.pp-status { margin: 0; font-family: var(--font-mono); font-size: .85rem; color: var(--amber); }
.pp-hint { margin: -.3rem 0 0; font-size: .85rem; color: var(--text-dim); }

/* ---- buttons ----------------------------------------------- */
.pp-row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .4rem; }
.pp-row .btn { min-height: var(--tap); padding-inline: .3rem; min-width: 0; font-size: .9rem; }
.pp-row-2 { grid-template-columns: minmax(0, 1fr); gap: .5rem; }

.pp-drop { display: flex; align-items: center; gap: .4rem; min-width: 0; }
.pp-drop-label { font-size: .85rem; color: var(--text-dim); margin-right: .2rem; }
.pp-drop .chip, .pp-eq { min-height: var(--tap); font-size: .76rem; letter-spacing: .04em; }
.pp-drop .chip { flex: 1 1 0; justify-content: center; min-width: 0; }
.pp-eq { justify-content: center; width: 100%; }

.pp-presets { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .4rem; }
.pp-presets .btn {
  min-height: var(--tap);
  min-width: 0;
  padding-inline: .3rem;
  font-size: .8rem;
  line-height: 1.15;
  white-space: normal;
}
.pp-presets .btn[aria-pressed="true"] {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--text);
}

/* ---- sliders ----------------------------------------------- */
.pp-sliders { display: grid; gap: .2rem 1.2rem; }
.pp-slider {
  --c: var(--accent);
  display: grid;
  gap: .05rem;
  font-size: .9rem;
  color: var(--text-dim);
  min-width: 0;
}
.pp-slider span { display: flex; align-items: center; gap: .5rem; }
.pp-slider output { margin-left: auto; font-family: var(--font-mono); color: var(--text); white-space: nowrap; }
.pp-slider i { width: .65rem; height: .65rem; border-radius: 50%; background: var(--c); flex: none; }
.pp-slider.is-rabbit { --c: var(--cyan); }
.pp-slider.is-fox { --c: var(--fox); }
.pp-slider.is-grass { --c: var(--green); }
.pp-slider input {
  width: 100%;
  height: var(--tap);
  margin: 0;
  accent-color: var(--c);
  cursor: pointer;
}

.pp-try {
  border-left: 3px solid var(--accent);
  background: var(--surface);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: .7rem .9rem;
  color: #C9CEE2;
}

@media (min-width: 640px) {
  .pp-stage { height: clamp(420px, 70svh, 720px); }
  .pp-row-2 { grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); align-items: center; }
  .pp-sliders { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pp-presets .btn { font-size: .85rem; }
}