/* Floating Button */
    .chat-toggle-btn {
        position: fixed; bottom: 20px; right: 20px; z-index: 9999;
        background: white; border-radius: 50%; border: none; cursor: pointer;
        box-shadow: 0 4px 15px rgba(0,0,0,0.2); width: 60px; height: 60px;
        display: flex; align-items: center; justify-content: center; transition: 0.3s;
    }
    .chat-toggle-btn img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; }
    .chat-toggle-btn:hover { transform: scale(1.1); }

    /* Chat Window */
    .chat-window {
        position: fixed; bottom: 90px; right: 20px; z-index: 9998;
        width: 350px; max-width: 90%; height: 450px;
        background: white; border-radius: 15px;
        box-shadow: 0 5px 25px rgba(0,0,0,0.15);
        display: none; flex-direction: column; overflow: hidden; font-family: 'Segoe UI', sans-serif;
    }
    .chat-header {
        background: #4f46e5; color: white; padding: 15px; font-weight: bold;
        display: flex; justify-content: space-between; align-items: center;
    }
    .chat-close { cursor: pointer; font-size: 20px; }
    
    /* Messages Area */
    .chat-messages {
        flex: 1; overflow-y: auto; padding: 15px; background: #f9fafb;
        display: flex; flex-direction: column; gap: 10px;
    }
    .message { max-width: 85%; padding: 10px 15px; border-radius: 15px; font-size: 13px; line-height: 1.4; }
    .msg-user { align-self: flex-end; background: #4f46e5; color: white; border-bottom-right-radius: 2px; }
    .msg-ai { align-self: flex-start; background: #e5e7eb; color: #333; border-bottom-left-radius: 2px; }
    .chat-image { width: 100%; border-radius: 8px; margin-top: 5px; border: 2px solid #e5e7eb; }
    
    /* Menu Buttons */
    .chat-option-btn {
        display: block; width: 100%; margin: 5px 0; padding: 10px;
        background: white; border: 1px solid #4f46e5; color: #4f46e5;
        border-radius: 8px; cursor: pointer; text-align: left; transition: 0.2s; font-size: 13px;
    }
    .chat-option-btn:hover { background: #4f46e5; color: white; }

    /* Input Area */
    .chat-input-area { padding: 10px; border-top: 1px solid #eee; background: white; display: flex; }
    .chat-input { flex: 1; padding: 10px; border: 1px solid #ddd; border-radius: 20px; outline: none; }
    .chat-send { background: none; border: none; color: #4f46e5; font-size: 24px; margin-left: 10px; cursor: pointer; }
    
    /* Login Warning */
    .login-blocker {
        position: absolute; top: 0; left: 0; width: 100%; height: 100%;
        background: rgba(255,255,255,0.95); z-index: 10;
        display: flex; flex-direction: column; justify-content: center; align-items: center;
        text-align: center; padding: 20px; color: #333;
    }