Pulse Heart Clock

<div class="nuda-pulse" role="img" aria-label="Pulse 72 bpm">
  <div class="nuda-pulse__heart" aria-hidden="true">
    <svg viewBox="0 0 32 32" width="32" height="32">
      <path d="M16 28 C2 18 2 8 10 8 c3 0 5 2 6 4 c1-2 3-4 6-4 c8 0 8 10-6 20z"
        fill="#ff5e7a" />
    </svg>
  </div>
  <div class="nuda-pulse__bpm">
    <span>72</span>
    <em>BPM</em>
  </div>
  <svg class="nuda-pulse__ecg" viewBox="0 0 200 40">
    <polyline points="0,20 30,20 38,20 44,8 50,32 56,12 62,20 90,20 100,20
                      110,12 116,28 122,20 200,20"
      fill="none" stroke="#ff5e7a" stroke-width="1.5"
      stroke-linejoin="round" stroke-linecap="round"
      class="nuda-pulse__line" />
  </svg>
</div>

/* Pulse Heart Clock
   Heart beats in a double-thump pattern at 72 bpm (interval = 60/72 ≈ 0.83s).
   ECG line scrolls behind. */

.nuda-pulse {
  --accent: #ff5e7a;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: #0c0c10;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 14px;
  font-family: system-ui;
  color: #fafafa;
}

.nuda-pulse__heart {
  animation: nuda-pulse-beat 0.83s ease-in-out infinite;
  filter: drop-shadow(0 0 6px rgba(255, 94, 122, 0.5));
}

.nuda-pulse__bpm {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.nuda-pulse__bpm span {
  font: 700 32px ui-monospace, Menlo, monospace;
  letter-spacing: -2px;
}

.nuda-pulse__bpm em {
  font-style: normal;
  font-size: 9px;
  letter-spacing: 2px;
  color: #a0a0a8;
  margin-top: 2px;
}

.nuda-pulse__ecg {
  width: 110px;
  height: 40px;
  flex-shrink: 0;
}

.nuda-pulse__line {
  stroke-dasharray: 300;
  stroke-dashoffset: 300;
  animation: nuda-pulse-ecg 1.66s linear infinite;
  filter: drop-shadow(0 0 4px var(--accent));
}

@keyframes nuda-pulse-beat {
  0%, 28%, 100% { transform: scale(1); }
  14%           { transform: scale(1.18); }
  42%           { transform: scale(1.08); }
}

@keyframes nuda-pulse-ecg {
  0%   { stroke-dashoffset: 300; }
  50%  { stroke-dashoffset: 0; }
  100% { stroke-dashoffset: -300; }
}

@media (prefers-reduced-motion: reduce) {
  .nuda-pulse__heart,
  .nuda-pulse__line { animation: none; }
  .nuda-pulse__line { stroke-dashoffset: 0; }
}