.ai-chat-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #2563eb 0%, #60a5fa 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.4);
    cursor: pointer;
    z-index: 9999;
    transition: all 0.3s;
    animation: pulse 2s infinite;
}

.ai-chat-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 99, 235, 0.6);
}

.ai-chat-btn i {
    font-size: 28px;
    color: #000;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 4px 20px rgba(37, 99, 235, 0.4); }
    50% { box-shadow: 0 4px 30px rgba(37, 99, 235, 0.7); }
}

@media (max-width: 768px) {
    .ai-chat-btn {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
    }
    .ai-chat-btn i {
        font-size: 24px;
    }
}