* {
            box-sizing: border-box;
        }

        body {
            margin: 0;
            font-family: Arial, Helvetica, sans-serif;
            background: #f3f4f6;
        }

        /* =========================
           FLOATING CHAT BUTTON
        ========================= */

        #vsx-chat-button {
            position: fixed;
            right: 28px;
            bottom: 28px;

            width: 62px;
            height: 62px;

            border: none;
            border-radius: 50%;

            background: linear-gradient(
                135deg,
                #111827,
                #374151
            );

            color: white;

            font-size: 25px;

            cursor: pointer;

            display: flex;
            align-items: center;
            justify-content: center;

            box-shadow:
                0 10px 30px rgba(0, 0, 0, 0.25);

            transition:
                transform 0.25s ease,
                box-shadow 0.25s ease;

            z-index: 99999;
        }

        #vsx-chat-button:hover {
            transform: scale(1.07);

            box-shadow:
                0 14px 35px rgba(0, 0, 0, 0.3);
        }


        /* =========================
           CHAT WINDOW
        ========================= */

        #vsx-chat-window {
            position: fixed;

            right: 28px;
            bottom: 105px;

            width: 390px;
            height: 570px;

            background: white;

            border-radius: 22px;

            overflow: hidden;

            display: none;

            flex-direction: column;

            box-shadow:
                0 25px 70px rgba(0, 0, 0, 0.22);

            border: 1px solid #e5e7eb;

            z-index: 99998;
        }


        /* =========================
           HEADER
        ========================= */

        #vsx-header {
            background: linear-gradient(
                135deg,
                #111827,
                #1f2937
            );

            color: white;

            padding: 18px;

            display: flex;

            align-items: center;

            justify-content: space-between;
        }


        #vsx-header-title {
            display: flex;

            align-items: center;

            gap: 12px;
        }


        #vsx-avatar {
            width: 42px;
            height: 42px;

            border-radius: 50%;

            background: white;

            color: #111827;

            display: flex;

            align-items: center;

            justify-content: center;

            font-size: 17px;

            font-weight: bold;
        }


        #vsx-header-text {
            display: flex;

            flex-direction: column;

            gap: 4px;
        }


        #vsx-header-name {
            font-size: 15px;

            font-weight: 700;
        }


        #vsx-header-status {
            font-size: 11px;

            color: #d1d5db;
        }


        #vsx-close {
            width: 34px;
            height: 34px;

            border: none;

            border-radius: 50%;

            background: rgba(
                255,
                255,
                255,
                0.12
            );

            color: white;

            font-size: 22px;

            cursor: pointer;

            display: flex;

            align-items: center;

            justify-content: center;

            transition: background 0.2s ease;
        }


        #vsx-close:hover {
            background: rgba(
                255,
                255,
                255,
                0.22
            );
        }


        /* =========================
           WELCOME AREA
        ========================= */

        #vsx-welcome {
            padding: 22px 18px 10px 18px;
        }


        #vsx-welcome-title {
            font-size: 18px;

            font-weight: 700;

            color: #111827;

            margin-bottom: 6px;
        }


        #vsx-welcome-text {
            font-size: 13px;

            line-height: 1.5;

            color: #6b7280;
        }


        /* =========================
           QUICK ACTIONS
        ========================= */

        #vsx-quick-actions {
            display: flex;

            flex-wrap: wrap;

            gap: 8px;

            padding: 8px 18px 15px 18px;
        }


        .vsx-quick-button {
            border: 1px solid #e5e7eb;

            background: white;

            color: #374151;

            padding: 9px 12px;

            border-radius: 20px;

            font-size: 12px;

            cursor: pointer;

            transition:
                background 0.2s ease,
                border-color 0.2s ease,
                transform 0.2s ease;
        }


        .vsx-quick-button:hover {
            background: #f3f4f6;

            border-color: #d1d5db;

            transform: translateY(-1px);
        }


        /* =========================
           MESSAGE AREA
        ========================= */

        #vsx-messages {
            flex: 1;

            padding: 8px 18px 15px 18px;

            overflow-y: auto;

            background: #f8fafc;

            font-size: 14px;

            scroll-behavior: smooth;
        }


        #vsx-messages::-webkit-scrollbar {
            width: 5px;
        }


        #vsx-messages::-webkit-scrollbar-thumb {
            background: #d1d5db;

            border-radius: 10px;
        }


        /* =========================
           MESSAGE BUBBLES
        ========================= */

        .vsx-user,
        .vsx-ai {
            max-width: 82%;

            padding: 11px 14px;

            margin: 10px 0;

            line-height: 1.5;

            word-wrap: break-word;

            animation: messageAppear 0.2s ease;
        }


        .vsx-user {
            margin-left: auto;

            background: #111827;

            color: white;

            border-radius:
                17px
                17px
                4px
                17px;

            box-shadow:
                0 3px 8px rgba(
                    0,
                    0,
                    0,
                    0.08
                );
        }


        .vsx-ai {
            margin-right: auto;

            background: white;

            color: #1f2937;

            border: 1px solid #e5e7eb;

            border-radius:
                17px
                17px
                17px
                4px;

            box-shadow:
                0 3px 8px rgba(
                    0,
                    0,
                    0,
                    0.04
                );
        }


        /* =========================
           TYPING INDICATOR
        ========================= */

        .vsx-typing {
            display: flex;

            align-items: center;

            gap: 4px;

            width: 55px;

            padding: 12px 14px;
        }


        .vsx-dot {
            width: 6px;
            height: 6px;

            border-radius: 50%;

            background: #9ca3af;

            animation: typing 1.2s infinite;
        }


        .vsx-dot:nth-child(2) {
            animation-delay: 0.15s;
        }


        .vsx-dot:nth-child(3) {
            animation-delay: 0.3s;
        }


        /* =========================
           INPUT AREA
        ========================= */

        #vsx-input-area {
            display: flex;

            align-items: center;

            gap: 8px;

            padding: 12px;

            background: white;

            border-top: 1px solid #e5e7eb;
        }


        #vsx-input {
            flex: 1;

            height: 44px;

            padding: 0 14px;

            border: 1px solid #e5e7eb;

            border-radius: 13px;

            outline: none;

            font-size: 13px;

            background: #f9fafb;

            transition:
                border-color 0.2s ease,
                box-shadow 0.2s ease;
        }


        #vsx-input:focus {
            border-color: #9ca3af;

            background: white;

            box-shadow:
                0 0 0 3px rgba(
                    17,
                    24,
                    39,
                    0.06
                );
        }


        #vsx-send {
            width: 44px;
            height: 44px;

            border: none;

            border-radius: 13px;

            background: #111827;

            color: white;

            font-size: 18px;

            cursor: pointer;

            display: flex;

            align-items: center;

            justify-content: center;

            transition:
                background 0.2s ease,
                transform 0.2s ease;
        }


        #vsx-send:hover {
            background: #374151;

            transform: translateY(-1px);
        }


        #vsx-send:disabled {
            opacity: 0.5;

            cursor: not-allowed;

            transform: none;
        }


        /* =========================
           ANIMATIONS
        ========================= */

        @keyframes messageAppear {

            from {
                opacity: 0;

                transform:
                    translateY(6px);
            }

            to {
                opacity: 1;

                transform:
                    translateY(0);
            }
        }


        @keyframes typing {

            0%,
            60%,
            100% {
                opacity: 0.3;

                transform:
                    translateY(0);
            }

            30% {
                opacity: 1;

                transform:
                    translateY(-3px);
            }
        }


        /* =========================
           MOBILE
        ========================= */

        @media (max-width: 500px) {

            #vsx-chat-window {
                width: calc(100% - 24px);

                height:
                    calc(100vh - 100px);

                right: 12px;

                bottom: 88px;

                border-radius: 18px;
            }


            #vsx-chat-button {
                right: 15px;

                bottom: 18px;
            }
        }
        /* =========================
        CONTACT FORM SUBMIT BUTTON
        ========================= */

    #vsx-contact-submit {
        display: block !important;

        width: 100% !important;
        padding: 11px 16px !important;

        border: none !important;
        border-radius: 10px !important;

        background: #111827 !important;
        color: #ffffff !important;

        font-size: 14px !important;
        font-weight: 600 !important;

        opacity: 1 !important;
        visibility: visible !important;

        cursor: pointer !important;

        box-shadow: none !important;
    }

    #vsx-contact-submit:hover {
        background: #374151 !important;
        color: #ffffff !important;
    }