/* ── Shared play/stop button — used by all interactive pages ─────────────── */
.play-stop-btn {
  background: #F5A623;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-family: Montserrat, sans-serif;
  font-size: clamp(11px, 1.8vw, 14px);
  font-weight: 700;
  letter-spacing: 0.03em;
  padding: 8px 22px;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: transform 0.12s ease, box-shadow 0.12s ease, filter 0.12s ease;
  white-space: nowrap;
}
.play-stop-btn:hover {
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.18);
  filter: brightness(1.1);
}
.play-stop-btn:active {
  transform: scale(0.95);
  box-shadow: none;
  filter: none;
  transition-duration: 0.05s;
}