/* チャットアイコン用CSS */
.chat-icon {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
    cursor: pointer;
    z-index: 1000;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse 2s infinite;
}

.chat-icon:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(102, 126, 234, 0.6);
}

.chat-icon-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    color: white;
}

.chat-icon svg {
    width: 24px;
    height: 24px;
    color: white;
}

.chat-icon.active {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    animation: none;
}

@keyframes pulse {
    0% {
        box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
    }
    50% {
        box-shadow: 0 4px 20px rgba(102, 126, 234, 0.8);
    }
    100% {
        box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
    }
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .chat-icon {
        bottom: 15px;
        right: 15px;
        width: 50px;
        height: 50px;
    }
    
    .chat-icon svg {
        width: 20px;
        height: 20px;
    }
}