body {
  margin: 0;
  background: #ffffff;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

.heart-wrapper {
  animation: heartbeat 2s ease-in-out infinite;
}

@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  30% { transform: scale(1.05); }
  60% { transform: scale(0.98); }
  80% { transform: scale(1.02); }
}

.heart-container {
  position: relative;
  width: 200px;
  height: 180px;
}

.dot {
  position: absolute;
  border-radius: 50%;
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.3);
  animation: appear 1s ease-in-out infinite;
}

@keyframes appear {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.3);
  }
  20% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.2);
  }
  50% {
    transform: translate(-50%, -50%) scale(1);
  }
  80% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.3);
  }
}

@media screen and (max-width: 480px) {
  .heart-container {
    transform: scale(0.8);
  }
}