.lazy-sentinel {
    width: 100%;
    height: 1px;
}

.lazy-load-spinner {
    display: none;
    justify-content: center;
    align-items: center;
    padding: 24px 0;
    gap: 8px;
}

.lazy-load-spinner span {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: #333;
    animation: lazy-bounce 1.2s ease-in-out infinite both;
}

.lazy-load-spinner span:nth-child(1) { animation-delay: -0.32s; }
.lazy-load-spinner span:nth-child(2) { animation-delay: -0.16s; }
.lazy-load-spinner span:nth-child(3) { animation-delay: 0s; }

@keyframes lazy-bounce {
    0%, 80%, 100% { transform: scale(0); opacity: 0.3; }
    40%            { transform: scale(1); opacity: 1; }
}