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<!DOCTYPE html>
<html lang="fa" dir="rtl">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
    <title>آلفا مترجم | Alpha Translator</title>
    <link href="https://cdn.jsdelivr.net/gh/rastikerdar/vazirmatn@v33.0.0/Vazirmatn-font-face.css" rel="stylesheet">
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">

    <style>
        :root {
            --sky: #38bdf8;
            --sky-deep: #0ea5e9;
            --sky-pale: #e0f2fe;
            --ocean: #0369a1;
            --mint: #34d399;
            --lavender: #818cf8;
            --peach: #fb923c;
            --bg: #f0f9ff;
            --card: #ffffff;
            --text: #0f172a;
            --muted: #64748b;
            --border: #e2e8f0;
            --shadow: 0 20px 60px -10px rgba(14,165,233,0.15);
        }

        * { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }

        body {
            font-family: 'Vazirmatn', sans-serif;
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
            color: var(--text);
        }

        /* ===== BACKGROUND ===== */
        .bg-scene {
            position: fixed; inset: 0; z-index: 0; overflow: hidden; pointer-events: none;
        }
        .bg-scene::before {
            content: ''; position: absolute; top: -20%; right: -10%;
            width: 70vw; height: 70vw; border-radius: 50%;
            background: radial-gradient(circle, rgba(56,189,248,0.18) 0%, transparent 70%);
            animation: floatBlob 12s ease-in-out infinite;
        }
        .bg-scene::after {
            content: ''; position: absolute; bottom: -10%; left: -5%;
            width: 55vw; height: 55vw; border-radius: 50%;
            background: radial-gradient(circle, rgba(129,140,248,0.14) 0%, transparent 70%);
            animation: floatBlob 15s ease-in-out infinite reverse;
        }
        @keyframes floatBlob {
            0%,100% { transform: translate(0,0) scale(1); }
            33% { transform: translate(3%,4%) scale(1.04); }
            66% { transform: translate(-2%,2%) scale(0.97); }
        }

        /* ===== LAYOUT ===== */
        .app-wrapper { position: relative; z-index: 1; max-width: 720px; margin: 0 auto; padding: 0 16px 40px; }

        /* ===== HEADER ===== */
        header {
            padding: 32px 0 20px; text-align: center;
            animation: headerDrop 0.8s cubic-bezier(0.34,1.56,0.64,1) both;
        }
        @keyframes headerDrop {
            0% { opacity:0; transform: translateY(-40px) scale(0.9); }
            100% { opacity:1; transform: translateY(0) scale(1); }
        }
        .logo-wrap { display: inline-flex; align-items: center; justify-content: center; gap: 14px; }

        /* ===== LOGO ICON ===== */
        .logo-icon-wrap { position: relative; width: 64px; height: 64px; }
        .logo-icon-wrap svg { width: 64px; height: 64px; filter: drop-shadow(0 4px 18px rgba(14,165,233,0.4)); }
        .logo-icon-pulse {
            position: absolute; inset: -6px; border-radius: 50%;
            border: 2px solid rgba(56,189,248,0.5);
            animation: pulse-ring 2s ease-out infinite;
        }
        .logo-icon-pulse2 {
            position: absolute; inset: -14px; border-radius: 50%;
            border: 2px solid rgba(56,189,248,0.25);
            animation: pulse-ring 2s ease-out 0.6s infinite;
        }
        @keyframes pulse-ring {
            0% { transform: scale(0.9); opacity: 1; }
            100% { transform: scale(1.5); opacity: 0; }
        }

        .logo-text { display: flex; flex-direction: column; align-items: flex-start; line-height: 1; gap: 4px; }
        .logo-title {
            font-size: 2rem; font-weight: 900;
            background: linear-gradient(135deg, var(--sky-deep) 0%, var(--lavender) 100%);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
        }
        .logo-sub { font-size: 0.72rem; color: var(--muted); font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; }

        /* ===== CARD ===== */
        .card {
            background: rgba(255,255,255,0.82);
            backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
            border: 1px solid rgba(255,255,255,0.9);
            border-radius: 28px; padding: 28px 24px;
            box-shadow: var(--shadow), 0 1px 0 rgba(255,255,255,0.9) inset;
            animation: cardRise 0.7s cubic-bezier(0.34,1.2,0.64,1) 0.2s both;
        }
        @keyframes cardRise {
            0% { opacity:0; transform: translateY(30px) scale(0.97); }
            100% { opacity:1; transform: translateY(0) scale(1); }
        }

        /* ===== LANGUAGE ROW ===== */
        .lang-row { display: flex; align-items: flex-end; gap: 10px; margin-bottom: 20px; }
        .lang-group { flex: 1; }
        .lang-label {
            display: flex; align-items: center; gap: 6px;
            font-size: 0.7rem; font-weight: 700; color: var(--muted);
            text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 6px;
        }
        .lang-label .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--sky-deep); }

        .select-wrap { position: relative; }
        .select-wrap select {
            width: 100%; appearance: none; -webkit-appearance: none;
            background: rgba(248,250,252,0.9);
            border: 1.5px solid var(--border); border-radius: 14px;
            padding: 13px 14px 13px 40px;
            font-family: 'Vazirmatn', sans-serif; font-size: 0.9rem; font-weight: 600;
            color: var(--text); cursor: pointer; transition: all 0.25s ease; outline: none;
        }
        .select-wrap select:focus {
            border-color: var(--sky); background: #fff;
            box-shadow: 0 0 0 4px rgba(56,189,248,0.12);
        }
        .select-arrow {
            position: absolute; left: 14px; top: 50%;
            transform: translateY(-50%); color: var(--muted);
            pointer-events: none; font-size: 0.7rem;
        }

        .swap-btn {
            flex-shrink: 0; width: 44px; height: 44px; border-radius: 50%;
            background: linear-gradient(135deg, var(--sky-pale), #ede9fe);
            border: 1.5px solid rgba(56,189,248,0.3);
            display: flex; align-items: center; justify-content: center;
            cursor: pointer; transition: all 0.35s cubic-bezier(0.34,1.56,0.64,1);
            color: var(--sky-deep); font-size: 0.85rem; margin-bottom: 2px;
        }
        .swap-btn:hover {
            transform: rotate(180deg) scale(1.12);
            background: linear-gradient(135deg, #bae6fd, #c7d2fe);
            box-shadow: 0 4px 16px rgba(56,189,248,0.3);
        }

        /* ===== TEXTAREA ===== */
        .textarea-wrap { position: relative; margin-bottom: 28px; }
        .textarea-wrap textarea {
            width: 100%; min-height: 140px; resize: none;
            border: 1.5px solid var(--border); border-radius: 18px;
            padding: 18px 18px 50px;
            font-family: 'Vazirmatn', sans-serif; font-size: 1.05rem; line-height: 1.8;
            color: var(--text); background: rgba(248,250,252,0.8);
            outline: none; transition: all 0.3s ease;
        }
        .textarea-wrap textarea:focus {
            border-color: var(--sky); background: #fff;
            box-shadow: 0 0 0 4px rgba(56,189,248,0.1);
        }
        .textarea-wrap textarea::placeholder { color: #94a3b8; }
        .textarea-wrap textarea.shake {
            animation: shakeField 0.5s cubic-bezier(0.36,0.07,0.19,0.97) both;
            border-color: #fb923c !important;
            box-shadow: 0 0 0 4px rgba(251,146,60,0.15) !important;
        }
        @keyframes shakeField {
            10%,90% { transform: translateX(-4px); }
            20%,80% { transform: translateX(6px); }
            30%,50%,70% { transform: translateX(-6px); }
            40%,60% { transform: translateX(6px); }
        }
        .textarea-hint {
            position: absolute; bottom: -26px; right: 0;
            font-size: 0.78rem; color: #fb923c; font-weight: 700;
            opacity: 0; transform: translateY(-4px); transition: all 0.3s ease;
            display: flex; align-items: center; gap: 5px;
        }
        .textarea-hint.show { opacity: 1; transform: translateY(0); }
        .clear-btn {
            position: absolute; bottom: 14px; left: 14px;
            width: 32px; height: 32px; border-radius: 50%;
            background: white; border: 1px solid var(--border);
            display: flex; align-items: center; justify-content: center;
            cursor: pointer; color: var(--muted); font-size: 0.8rem;
            transition: all 0.2s; box-shadow: 0 2px 8px rgba(0,0,0,0.06);
        }
        .clear-btn:hover { color: #ef4444; transform: scale(1.1); }

        /* ===== TRANSLATE BUTTON ===== */
        .translate-btn-wrap { margin-top: 4px; }
        .translate-btn {
            width: 100%; padding: 17px 24px; border-radius: 18px; border: none;
            background: linear-gradient(135deg, var(--sky-deep) 0%, #6366f1 100%);
            color: white; font-family: 'Vazirmatn', sans-serif;
            font-size: 1.1rem; font-weight: 800; letter-spacing: 0.02em;
            cursor: pointer; display: flex; align-items: center; justify-content: center;
            gap: 10px; position: relative; overflow: hidden;
            transition: all 0.3s cubic-bezier(0.34,1.2,0.64,1);
            box-shadow: 0 8px 32px rgba(3,105,161,0.35), 0 1px 0 rgba(255,255,255,0.15) inset;
        }
        .translate-btn::before {
            content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.18), transparent);
            transition: left 0.5s ease;
        }
        .translate-btn:hover::before { left: 100%; }
        .translate-btn:hover { transform: translateY(-2px); box-shadow: 0 14px 40px rgba(3,105,161,0.4); }
        .translate-btn:active { transform: scale(0.98); }
        .translate-btn:disabled { opacity: 0.85; cursor: not-allowed; transform: none; }
        .btn-icon-wrap {
            width: 34px; height: 34px; background: rgba(255,255,255,0.2);
            border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1rem;
        }

        /* ===== SPINNER ===== */
        .spinner {
            width: 22px; height: 22px;
            border: 2.5px solid rgba(255,255,255,0.3); border-top-color: white;
            border-radius: 50%; animation: spin 0.7s linear infinite;
        }
        @keyframes spin { to { transform: rotate(360deg); } }

        /* ===== SETTINGS ===== */
        .settings-panel {
            margin-top: 18px; border-radius: 18px;
            background: rgba(248,250,252,0.7); border: 1.5px solid var(--border); overflow: hidden;
        }
        .settings-toggle {
            display: flex; justify-content: space-between; align-items: center;
            padding: 14px 18px; cursor: pointer; user-select: none; list-style: none;
        }
        .settings-toggle::-webkit-details-marker { display: none; }
        .settings-label { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; font-weight: 700; color: var(--muted); }
        .settings-label .badge {
            background: linear-gradient(135deg, var(--sky-pale), #ede9fe);
            color: var(--ocean); font-size: 0.65rem; padding: 2px 8px;
            border-radius: 20px; font-weight: 800;
        }
        .settings-chevron { color: var(--muted); font-size: 0.75rem; transition: transform 0.3s ease; }
        details[open] .settings-chevron { transform: rotate(180deg); }
        .settings-body {
            padding: 0 18px 18px; border-top: 1px solid var(--border);
            display: flex; flex-direction: column; gap: 16px;
            animation: fadeDown 0.3s ease both;
        }
        @keyframes fadeDown {
            from { opacity: 0; transform: translateY(-8px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .voice-select-wrap { margin-top: 12px; }
        .settings-row { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }
        @media (max-width: 500px) { .settings-row { grid-template-columns: 1fr; } }
        .slider-group label {
            display: flex; justify-content: space-between; align-items: center;
            font-size: 0.73rem; font-weight: 700; color: var(--muted); margin-bottom: 6px;
        }
        .slider-group label span {
            background: linear-gradient(135deg, var(--sky-deep), var(--lavender));
            -webkit-background-clip: text; -webkit-text-fill-color: transparent; font-weight: 800;
        }
        input[type="range"] {
            -webkit-appearance: none; width: 100%; height: 4px;
            border-radius: 4px; background: linear-gradient(to left, var(--sky-deep) 50%, #e2e8f0 50%);
            outline: none; cursor: pointer;
        }
        input[type="range"]::-webkit-slider-thumb {
            -webkit-appearance: none; width: 18px; height: 18px; border-radius: 50%;
            background: white; border: 2.5px solid var(--sky-deep);
            box-shadow: 0 2px 8px rgba(3,105,161,0.25); cursor: pointer; transition: transform 0.15s;
        }
        input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.2); }

        #voiceSelect {
            width: 100%; appearance: none; -webkit-appearance: none;
            background: white; border: 1.5px solid var(--border); border-radius: 12px;
            padding: 11px 14px 11px 38px;
            font-family: 'Vazirmatn', sans-serif; font-size: 0.85rem; font-weight: 600;
            color: var(--text); outline: none; transition: all 0.2s; cursor: pointer;
        }
        #voiceSelect:focus { border-color: var(--sky); box-shadow: 0 0 0 4px rgba(56,189,248,0.1); }

        /* ===== OUTPUT ===== */
        .output-section {
            margin-top: 20px; display: none; flex-direction: column; gap: 14px;
            opacity: 0; transform: translateY(16px);
            transition: opacity 0.45s ease, transform 0.45s cubic-bezier(0.34,1.2,0.64,1);
        }
        .output-section.visible { display: flex; opacity: 1; transform: translateY(0); }

        .output-box {
            position: relative;
            background: linear-gradient(135deg, rgba(224,242,254,0.6), rgba(237,233,254,0.4));
            border: 1.5px solid rgba(56,189,248,0.25); border-radius: 18px;
            padding: 22px 18px 52px; min-height: 90px;
        }
        .output-chip {
            position: absolute; top: -12px; right: 18px;
            background: linear-gradient(135deg, var(--sky-deep), var(--lavender));
            color: white; font-size: 0.7rem; font-weight: 800;
            padding: 4px 14px; border-radius: 20px; letter-spacing: 0.05em;
            box-shadow: 0 4px 12px rgba(3,105,161,0.3);
        }
        .output-text {
            font-size: 1.05rem; line-height: 1.9; color: var(--text);
            white-space: pre-wrap; margin-top: 8px;
        }
        .copy-btn {
            position: absolute; bottom: 14px; left: 14px;
            width: 34px; height: 34px; border-radius: 50%;
            background: white; border: 1.5px solid rgba(56,189,248,0.3);
            display: flex; align-items: center; justify-content: center;
            cursor: pointer; color: var(--sky-deep); font-size: 0.8rem;
            transition: all 0.2s; box-shadow: 0 2px 10px rgba(3,105,161,0.1);
        }
        .copy-btn:hover { background: var(--sky-pale); transform: scale(1.1); }

        /* ===== AUDIO PLAYER ===== */
        .audio-player-wrap {
            background: white; border: 1.5px solid var(--border); border-radius: 16px;
            padding: 16px; box-shadow: 0 4px 16px rgba(0,0,0,0.04);
            display: flex; flex-direction: column; gap: 14px;
        }
        .audio-player-row {
            display: flex; align-items: center; gap: 8px; width: 100%;
        }
        audio { flex: 1; height: 38px; border-radius: 8px; outline: none; min-width: 0; }

        /* ===== DOWNLOAD BUTTON ===== */
        .download-btn {
            align-self: center;
            display: flex; align-items: center; justify-content: center; gap: 8px;
            padding: 12px 24px; border-radius: 14px; border: none;
            background: linear-gradient(135deg, #0ea5e9, #6366f1);
            color: white; font-family: 'Vazirmatn', sans-serif;
            font-size: 0.85rem; font-weight: 800; cursor: pointer;
            transition: all 0.25s cubic-bezier(0.34,1.3,0.64,1);
            box-shadow: 0 4px 14px rgba(14,165,233,0.35);
            white-space: nowrap; position: relative; overflow: hidden;
            min-width: 200px;
        }
        .download-btn::before {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
            border-radius: 14px;
        }
        .download-btn:hover {
            transform: translateY(-2px) scale(1.04);
            box-shadow: 0 8px 22px rgba(14,165,233,0.45);
        }
        .download-btn:active { transform: scale(0.97); }
        .download-btn .dl-icon {
            width: 22px; height: 22px; border-radius: 50%;
            background: rgba(255,255,255,0.25);
            display: flex; align-items: center; justify-content: center;
            font-size: 0.72rem; flex-shrink: 0;
        }

        /* ===== SECTION DIVIDER ===== */
        .section-divider { display: flex; align-items: center; gap: 10px; margin: 4px 0; }
        .section-divider::before, .section-divider::after {
            content: ''; flex: 1; height: 1px;
            background: linear-gradient(to right, transparent, var(--border), transparent);
        }
        .section-divider span { font-size: 0.65rem; font-weight: 800; color: var(--muted); letter-spacing: 0.1em; text-transform: uppercase; }

        /* ===== TOAST ===== */
        .toast-container {
            position: fixed; top: 20px; right: 50%; transform: translateX(50%);
            z-index: 9999; display: flex; flex-direction: column; gap: 10px; pointer-events: none;
        }
        .toast {
            background: white; border-radius: 14px; padding: 12px 20px;
            font-size: 0.88rem; font-weight: 700;
            display: flex; align-items: center; gap: 10px;
            box-shadow: 0 8px 32px rgba(0,0,0,0.12); border: 1.5px solid var(--border);
            pointer-events: auto; animation: toastIn 0.4s cubic-bezier(0.34,1.56,0.64,1) both;
            min-width: 240px; max-width: 90vw;
        }
        .toast.leaving { animation: toastOut 0.3s ease both; }
        @keyframes toastIn { from { opacity:0; transform: translateY(-20px) scale(0.9); } to { opacity:1; transform: translateY(0) scale(1); } }
        @keyframes toastOut { from { opacity:1; transform: translateY(0) scale(1); } to { opacity:0; transform: translateY(-12px) scale(0.92); } }
        .toast-icon { width: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.85rem; flex-shrink: 0; }
        .toast.success .toast-icon { background: #dcfce7; color: #16a34a; }
        .toast.error .toast-icon { background: #fee2e2; color: #dc2626; }
        .toast.info .toast-icon { background: var(--sky-pale); color: var(--sky-deep); }

        /* ===== FOOTER ===== */
        footer { padding: 16px 0 28px; }

        /* ===== SCROLLBAR ===== */
        ::-webkit-scrollbar { width: 5px; }
        ::-webkit-scrollbar-track { background: transparent; }
        ::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 10px; }
    </style>
</head>
<body>

<div class="bg-scene"></div>
<div class="toast-container" id="toastContainer"></div>

<div class="app-wrapper">

    <!-- HEADER -->
    <header>
        <div class="logo-wrap">
            <div class="logo-icon-wrap">
                <div class="logo-icon-pulse"></div>
                <div class="logo-icon-pulse2"></div>
                <!-- Google Translate style SVG icon -->
                <svg viewBox="0 0 64 64" fill="none" xmlns="http://www.w3.org/2000/svg">
                    <defs>
                        <linearGradient id="lg2" x1="22" y1="24" x2="56" y2="58" gradientUnits="userSpaceOnUse">
                            <stop offset="0%" stop-color="#0ea5e9"/>
                            <stop offset="100%" stop-color="#6366f1"/>
                        </linearGradient>
                    </defs>
                    <rect x="8" y="12" width="34" height="34" rx="8" fill="#e0f2fe" stroke="#0ea5e9" stroke-width="2.5"/>
                    <text x="25" y="36" fill="#0ea5e9" font-size="22" font-family="Arial, sans-serif" font-weight="900" text-anchor="middle">A</text>
                    <rect x="22" y="24" width="34" height="34" rx="8" fill="url(#lg2)" stroke="#ffffff" stroke-width="3"/>
                    <text x="39" y="48" fill="#ffffff" font-size="22" font-family="Arial, sans-serif" font-weight="bold" text-anchor="middle">文</text>
                </svg>
            </div>
            <div class="logo-text">
                <span class="logo-title">آلفا مترجم</span>
                <span class="logo-sub">Alpha Translator</span>
            </div>
        </div>
    </header>

    <!-- MAIN CARD -->
    <div class="card">

        <!-- Language Row -->
        <div class="lang-row">
            <div class="lang-group">
                <div class="lang-label"><span class="dot"></span> زبان مبدأ</div>
                <div class="select-wrap">
                    <select id="sourceLang">
                        <option value="شناسایی خودکار">🌍 شناسایی خودکار</option>
                    </select>
                    <i class="fa-solid fa-chevron-down select-arrow"></i>
                </div>
            </div>

            <button class="swap-btn" id="swapBtn" title="تعویض زبان‌ها">
                <i class="fa-solid fa-arrows-left-right"></i>
            </button>

            <div class="lang-group">
                <div class="lang-label"><span class="dot" style="background:var(--lavender)"></span> زبان مقصد</div>
                <div class="select-wrap">
                    <select id="targetLang"></select>
                    <i class="fa-solid fa-chevron-down select-arrow" style="color:var(--lavender)"></i>
                </div>
            </div>
        </div>

        <!-- Textarea -->
        <div class="textarea-wrap" id="textareaWrap">
            <textarea id="inputText" rows="5" placeholder="متن خود را برای ترجمه اینجا وارد کنید..."></textarea>
            <button class="clear-btn" id="clearBtn" title="پاک کردن">
                <i class="fa-solid fa-eraser"></i>
            </button>
            <div class="textarea-hint" id="textHint">
                <i class="fa-solid fa-triangle-exclamation"></i> لطفاً متن را وارد کنید
            </div>
        </div>

        <!-- Translate Button -->
        <div class="translate-btn-wrap">
            <button class="translate-btn" id="translateBtn">
                <div class="btn-icon-wrap">
                    <i class="fa-solid fa-wand-magic-sparkles"></i>
                </div>
                <span id="btnText">ترجمه و پخش صدا</span>
            </button>
        </div>

        <!-- Settings -->
        <details class="settings-panel" id="settingsDetails">
            <summary class="settings-toggle">
                <div class="settings-label">
                    <i class="fa-solid fa-sliders" style="color:var(--sky-deep)"></i>
                    تنظیمات گوینده و صدا
                    <span class="badge">پیشرفته</span>
                </div>
                <i class="fa-solid fa-chevron-down settings-chevron"></i>
            </summary>
            <div class="settings-body">
                <div class="voice-select-wrap">
                    <div class="lang-label" style="margin-bottom:8px;">
                        <i class="fa-solid fa-microphone" style="color:var(--sky-deep)"></i> انتخاب گوینده
                    </div>
                    <div class="select-wrap">
                        <select id="voiceSelect"></select>
                        <i class="fa-solid fa-chevron-down select-arrow"></i>
                    </div>
                </div>
                <div class="section-divider"><span>تنظیمات صدا</span></div>
                <div class="settings-row">
                    <div class="slider-group">
                        <label>سرعت <span id="rateVal">0</span></label>
                        <input type="range" id="rateSlider" min="-50" max="50" value="0">
                    </div>
                    <div class="slider-group">
                        <label>گام <span id="pitchVal">0</span></label>
                        <input type="range" id="pitchSlider" min="-50" max="50" value="0">
                    </div>
                    <div class="slider-group">
                        <label>حجم <span id="volVal">0</span></label>
                        <input type="range" id="volSlider" min="-50" max="50" value="0">
                    </div>
                </div>
            </div>
        </details>

        <!-- Output -->
        <div class="output-section" id="outputSection">
            <div class="output-box">
                <div class="output-chip">✦ ترجمه</div>
                <p class="output-text" id="outputText"></p>
                <button class="copy-btn" id="copyBtn" title="کپی متن">
                    <i class="fa-regular fa-copy"></i>
                </button>
            </div>
            <div class="audio-player-wrap">
                <div class="audio-player-row">
                    <audio id="audioPlayer" controls controlsList="nodownload">
                        مرورگر شما از پخش صدا پشتیبانی نمی‌کند.
                    </audio>
                </div>
                <button class="download-btn" id="downloadBtn" title="دانلود صدا">
                    <div class="dl-icon"><i class="fa-solid fa-arrow-down"></i></div>
                    دانلود صدا
                </button>
            </div>
        </div>

    </div><!-- end .card -->

    <footer></footer>
</div>

<script>
    // ===== RTL LANGUAGES MAP =====
    const RTL_LANGS = new Set(['فارسی','عربی','هبری','اردو','پشتو','کردی','سندی','دیوهی']);

    function isRTL(langName) {
        return RTL_LANGS.has(langName);
    }

    // ===== TOAST =====
    function showToast(msg, type = 'info', duration = 3500) {
        const icons = { success: 'fa-check', error: 'fa-xmark', info: 'fa-info' };
        const container = document.getElementById('toastContainer');
        const toast = document.createElement('div');
        toast.className = `toast ${type}`;
        toast.innerHTML = `<div class="toast-icon"><i class="fa-solid ${icons[type]}"></i></div><span>${msg}</span>`;
        container.appendChild(toast);
        setTimeout(() => {
            toast.classList.add('leaving');
            setTimeout(() => toast.remove(), 300);
        }, duration);
    }

    // ===== SLIDERS =====
    function updateSliderTrack(slider) {
        const pct = ((slider.value - slider.min) / (slider.max - slider.min)) * 100;
        slider.style.background = `linear-gradient(to left, var(--sky-deep) ${pct}%, #e2e8f0 ${pct}%)`;
    }
    ['rate','pitch','vol'].forEach(id => {
        const slider = document.getElementById(id+'Slider');
        const valEl = document.getElementById(id+'Val');
        updateSliderTrack(slider);
        slider.addEventListener('input', () => { valEl.textContent = slider.value; updateSliderTrack(slider); });
    });

    // ===== ELEMENTS =====
    let languagesData = {};
    const sourceLang    = document.getElementById('sourceLang');
    const targetLang    = document.getElementById('targetLang');
    const voiceSelect   = document.getElementById('voiceSelect');
    const inputText     = document.getElementById('inputText');
    const translateBtn  = document.getElementById('translateBtn');
    const btnText       = document.getElementById('btnText');
    const outputSection = document.getElementById('outputSection');
    const outputText    = document.getElementById('outputText');
    const audioPlayer   = document.getElementById('audioPlayer');
    const clearBtn      = document.getElementById('clearBtn');
    const copyBtn       = document.getElementById('copyBtn');
    const downloadBtn   = document.getElementById('downloadBtn');
    const textHint      = document.getElementById('textHint');

    // ===== TEXT DIRECTION HELPERS =====
    function applyInputDir(langName) {
        const rtl = isRTL(langName) || langName === 'شناسایی خودکار';
        inputText.dir = rtl ? 'rtl' : 'ltr';
        inputText.style.textAlign = rtl ? 'right' : 'left';
        if (langName === 'شناسایی خودکار') {
            checkDynamicDirection();
        }
    }

    function checkDynamicDirection() {
        if (sourceLang.value !== 'شناسایی خودکار') return;
        const val = inputText.value;
        const firstCharMatch = val.match(/\S/);
        if (firstCharMatch) {
            const rtlRegex = /[\u0591-\u07FF\uFB1D-\uFDFD\uFE70-\uFEFC]/;
            const isRtl = rtlRegex.test(firstCharMatch[0]);
            inputText.dir = isRtl ? 'rtl' : 'ltr';
            inputText.style.textAlign = isRtl ? 'right' : 'left';
        } else {
            inputText.dir = 'rtl';
            inputText.style.textAlign = 'right';
        }
    }

    inputText.addEventListener('input', checkDynamicDirection);

    function applyOutputDir(langName) {
        const rtl = isRTL(langName);
        outputText.dir = rtl ? 'rtl' : 'ltr';
        outputText.style.textAlign = rtl ? 'right' : 'left';
    }

    // ===== LOAD CONFIG =====
    async function loadConfig() {
        try {
            const res = await fetch('/api/config');
            const data = await res.json();
            languagesData = data.languages;
            Object.keys(languagesData).forEach(lang => {
                sourceLang.add(new Option(lang, lang));
                const isSelected = lang === 'انگلیسی';
                targetLang.add(new Option(lang, lang, isSelected, isSelected));
            });
            updateVoices('انگلیسی');
            applyInputDir('شناسایی خودکار');
            applyOutputDir('انگلیسی');
        } catch {
            showToast('خطا در بارگذاری زبان‌ها', 'error');
        }
    }

    function updateVoices(langKey) {
        voiceSelect.innerHTML = '';
        const voices = languagesData[langKey]?.voices || {};
        if (!Object.keys(voices).length) { voiceSelect.add(new Option('بدون پشتیبانی صوتی', '')); return; }
        Object.keys(voices).forEach(vName => voiceSelect.add(new Option(vName, vName)));
    }

    sourceLang.addEventListener('change', e => applyInputDir(e.target.value));
    targetLang.addEventListener('change', e => { updateVoices(e.target.value); applyOutputDir(e.target.value); });

    // ===== SWAP =====
    document.getElementById('swapBtn').addEventListener('click', () => {
        const sv = sourceLang.value, tv = targetLang.value;
        if (sv === 'شناسایی خودکار') { showToast('ابتدا یک زبان مبدأ انتخاب کنید', 'info'); return; }
        for (let i = 0; i < sourceLang.options.length; i++) if (sourceLang.options[i].value === tv) { sourceLang.selectedIndex = i; break; }
        for (let i = 0; i < targetLang.options.length; i++) if (targetLang.options[i].value === sv) { targetLang.selectedIndex = i; break; }
        updateVoices(targetLang.value);
        applyInputDir(sourceLang.value);
        applyOutputDir(targetLang.value);
        const translated = outputText.textContent;
        if (translated) { inputText.value = translated; outputSection.classList.remove('visible'); setTimeout(() => { outputSection.style.display = 'none'; }, 450); }
    });

    // ===== CLEAR =====
    clearBtn.addEventListener('click', () => {
        inputText.value = '';
        inputText.focus();
        checkDynamicDirection();
        outputSection.classList.remove('visible');
        setTimeout(() => { outputSection.style.display = 'none'; }, 450);
    });

    // ===== COPY =====
    copyBtn.addEventListener('click', () => {
        navigator.clipboard.writeText(outputText.innerText).then(() => {
            copyBtn.innerHTML = '<i class="fa-solid fa-check" style="color:#16a34a"></i>';
            showToast('متن کپی شد!', 'success', 2000);
            setTimeout(() => copyBtn.innerHTML = '<i class="fa-regular fa-copy"></i>', 2000);
        });
    });

    // ===== DOWNLOAD =====
    downloadBtn.addEventListener('click', () => {
        const src = audioPlayer.src;
        if (!src) return;
        
        // بررسی اینکه آیا صفحه درون آی‌فریم باز شده است یا خیر
        if (window.self !== window.top) {
            // ارسال آدرس صدا به کامپوننت والد جهت آپلود تکه‌ای و دانلود با نام سایت شما
            window.parent.postMessage({
                type: 'INITIATE_DOWNLOAD_FROM_URL',
                payload: {
                    audioUrl: src
                }
            }, '*');
            showToast('در حال آماده‌سازی فایل صوتی در برنامه...', 'success', 2000);
        } else {
            // حالت پیش‌فرض (دانلود مستقیم مرورگر) در صورتی که خارج از آی‌فریم باز شده باشد
            const a = document.createElement('a');
            a.href = src;
            a.download = 'alpha-translator-audio.mp3';
            a.click();
            showToast('در حال دانلود مستقیم...', 'success', 2000);
        }
    });

    // ===== TRANSLATE =====
    translateBtn.addEventListener('click', async () => {
        const text = inputText.value.trim();
        if (!text) {
            inputText.classList.add('shake');
            textHint.classList.add('show');
            setTimeout(() => inputText.classList.remove('shake'), 500);
            setTimeout(() => textHint.classList.remove('show'), 3000);
            return;
        }

        textHint.classList.remove('show');
        translateBtn.disabled = true;
        btnText.innerHTML = '<span style="display:inline-flex; align-items:center; gap:8px;"><span class="spinner"></span> در حال پردازش...</span>';
        outputSection.classList.remove('visible');
        setTimeout(() => { outputSection.style.display = 'none'; }, 450);

        try {
            const response = await fetch('/api/translate_and_speak', {
                method: 'POST',
                headers: { 'Content-Type': 'application/json' },
                body: JSON.stringify({
                    text,
                    source_lang: sourceLang.value,
                    target_lang: targetLang.value,
                    voice_key: voiceSelect.value || '',
                    rate: parseInt(document.getElementById('rateSlider').value),
                    pitch: parseInt(document.getElementById('pitchSlider').value),
                    volume: parseInt(document.getElementById('volSlider').value)
                })
            });

            const result = await response.json();

            if (result.success) {
                outputText.innerText = result.translated_text;
                applyOutputDir(targetLang.value);

                if (result.audio_url) {
                    audioPlayer.src = result.audio_url + '?t=' + Date.now();
                    audioPlayer.parentElement.parentElement.style.display = 'flex';
                    audioPlayer.play().catch(() => {});
                } else {
                    audioPlayer.parentElement.parentElement.style.display = 'none';
                }

                outputSection.style.display = 'flex';
                requestAnimationFrame(() => requestAnimationFrame(() => outputSection.classList.add('visible')));
                showToast('ترجمه با موفقیت انجام شد!', 'success');
            } else {
                showToast(result.error || 'خطایی رخ داد', 'error');
            }
        } catch {
            showToast('خطا در ارتباط با سرور', 'error');
        } finally {
            translateBtn.disabled = false;
            btnText.innerHTML = 'ترجمه و پخش صدا';
        }
    });

    loadConfig();
</script>
</body>
</html>