Lub Dub Valves -

.valve flex: 1; background: #0f212e; border-radius: 2rem; padding: 1.5rem; text-align: center; transition: all 0.2s ease; box-shadow: 0 8px 20px rgba(0,0,0,0.3); border: 1px solid #2c4c6c;

function startAutoCycle() if (autoInterval) clearInterval(autoInterval); isAuto = true; function nextBeat() if (!isAuto) return; playLubDub(); // initial immediate beat nextBeat(); autoInterval = setInterval(nextBeat, getCycleIntervalMs()); statusSpan.innerHTML = `🔄 AUTO CYCLE ($bpmSlider.value BPM)`; lub dub valves

<div class="valves-container"> <div class="valve lub" id="lubValve"> <div class="valve-icon">🫀🚪</div> <div class="valve-title">LUB (S1)</div> <div class="valve-desc">Mitral + Tricuspid closure<br>AV valves snap shut</div> </div> <div class="valve dub" id="dubValve"> <div class="valve-icon">🫀🌊</div> <div class="valve-title">DUB (S2)</div> <div class="valve-desc">Aortic + Pulmonic closure<br>Semilunar valves close</div> </div> </div> .valve flex: 1