width: 6px;
    height: 6px;
    background-color: #0052cc;
    border-radius: 50%;
    margin: 0 2px;
    animation: thinking-bounce 1.4s ease-in-out infinite both;
}

.thinking-dots span:nth-child(1) {
    animation-delay: -0.32s;
}

.thinking-dots span:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes thinking-bounce {
    0%, 80%, 100% { transform: scale(0); }