<button
  class="pp-ripple"
  type="button"
  aria-pressed="false"
  aria-label="Play"
  data-pp
  data-pp-ripple
>
  <svg viewBox="0 0 24 24" width="20" height="20" aria-hidden="true">
    <path class="pp-ripple-icon" d="M8 5 L8 19 L19 12 Z" fill="currentColor" />
  </svg>
</button>

.pp-ripple {
  position: relative;
  width: 56px;
  height: 56px;
  border: 0;
  padding: 0;
  background: linear-gradient(135deg, #a78bfa, #8b5cf6);
  border-radius: 50%;
  color: white;
  cursor: pointer;
  display: grid;
  place-items: center;
  overflow: hidden;
  box-shadow: 0 6px 16px -4px rgba(139, 92, 246, 0.55);
  transition:
    transform 0.15s,
    box-shadow 0.25s;
}
.pp-ripple:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 22px -4px rgba(139, 92, 246, 0.7);
}
.pp-ripple:focus-visible {
  outline: 3px solid rgba(139, 92, 246, 0.5);
  outline-offset: 3px;
}
.pp-ripple-wave {
  position: absolute;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  transform: translate(-50%, -50%);
  pointer-events: none;
  animation: ppRippleOut 0.6s ease-out forwards;
}
@keyframes ppRippleOut {
  to {
    width: 140px;
    height: 140px;
    opacity: 0;
  }
}
.pp-ripple-icon {
  position: relative;
  z-index: 1;
  transition: d 0.3s cubic-bezier(0.5, 0, 0.3, 1.2);
}
.pp-ripple[aria-pressed="true"] .pp-ripple-icon {
  d: path("M7 5 H10 V19 H7 Z M14 5 H17 V19 H14 Z");
}

/* ── Drop-in JS for the ripple ──
document.querySelectorAll('[data-pp-ripple]').forEach(btn => {
  btn.addEventListener('pointerdown', e => {
    const r = btn.getBoundingClientRect();
    const wave = document.createElement('span');
    wave.className = 'pp-ripple-wave';
    wave.style.left = (e.clientX - r.left) + 'px';
    wave.style.top  = (e.clientY - r.top)  + 'px';
    btn.appendChild(wave);
    wave.addEventListener('animationend', () => wave.remove());
  });
});
*/

@media (prefers-reduced-motion: reduce) {
  .pp-ripple,
  .pp-ripple * {
    animation: none !important;
  }
}

// ── Drop this on every page where you render a play/pause button ──
// Toggles aria-pressed + aria-label on click. The CSS handles all visuals.
document.querySelectorAll('[data-pp]').forEach(function (btn) {
  btn.addEventListener('click', function () {
    var playing = btn.getAttribute('aria-pressed') === 'true';
    btn.setAttribute('aria-pressed', String(!playing));
    btn.setAttribute('aria-label', !playing ? 'Pause' : 'Play');
  });
});