@keyframes heartbeat {
    0% { transform: rotate(-45deg) scale(1); }
    14% { transform: rotate(-45deg) scale(1.3); }
    28% { transform: rotate(-45deg) scale(1); }
    42% { transform: rotate(-45deg) scale(1.3); }
    70% { transform: rotate(-45deg) scale(1); }
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}
.fade-in { animation: fadeIn 1.5s cubic-bezier(0.2, 0.8, 0.2, 1) forwards; opacity: 0; transform: translateY(30px); }
@keyframes fadeIn { to { opacity: 1; transform: translateY(0); } }