.colart-chatbot-button {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9999;
    background: #0078d4;
    color: #fff;
    border: none;
    border-radius: 50%;
    width: 56px;
    height: 56px;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    padding: 0;
}

.colart-chatbot-modal {
    position: fixed;
    bottom: 90px;
    right: 24px;
    width: 350px;
    max-width: 95vw;
    height: 500px;
    max-height: 80vh;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.18);
    display: none;
    flex-direction: column;
    overflow: hidden;
    z-index: 10000;
}

.colart-chatbot-modal-header {
    background: #0078d4;
    color: #fff;
    padding: 16px;
    font-weight: bold;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.colart-chatbot-modal-close {
    cursor: pointer;
    font-size: 20px;
}

.colart-chatbot-modal-history {
    flex: 1;
    padding: 16px;
    overflow-y: auto;
    background: #f6f8fa;
}

.colart-chatbot-modal-inputarea {
    display: flex;
    padding: 12px;
    border-top: 1px solid #eee;
}

.colart-chatbot-modal-input {
    flex: 1;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
    margin-right: 8px;
}

.colart-chatbot-modal-send {
    background: #0078d4;
    color: #fff;
    border: none;
    border-radius: 4px;
    padding: 8px 16px;
    cursor: pointer;
}

.colart-chatbot-modal-message {
    margin-bottom: 12px;
    text-align: left;
}

.colart-chatbot-modal-message.colart-chatbot-modal-message-user {
    text-align: right;
}

.colart-chatbot-modal-message span {
    display: inline-block;
    padding: 8px 12px 0;
    border-radius: 8px;
    max-width: 80%;
    word-break: break-word;
    background: #e5e7eb;
    color: #222;
}

.colart-chatbot-modal-message span p {
    margin: 0 0 8px;
}

.colart-chatbot-modal-message.colart-chatbot-modal-message-user span {
    background: #0078d4;
    color: #fff;
}