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

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="VoiceGuard - AI-Generated Voice Detection for Indian Languages">

    <title>VoiceGuard | AI Voice Detection</title>

    <!-- Fonts -->
    <link rel="preconnect" href="https://fonts.googleapis.com">
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap" rel="stylesheet">

    <!-- Styles -->
    <link rel="stylesheet" href="css/variables.css">
    <link rel="stylesheet" href="css/base.css">
    <link rel="stylesheet" href="css/components.css">
    <link rel="stylesheet" href="css/animations.css">

    <!-- Favicon -->
    <link rel="icon" type="image/svg+xml"
        href="data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><text y='.9em' font-size='90'>🛡️</text></svg>">
</head>

<body>
    <div class="app">
        <!-- ==================== HEADER ==================== -->
        <header class="header">
            <div class="header__brand">
                <span class="header__logo">🛡️</span>
                <span class="header__title">VoiceGuard</span>
            </div>
            <div class="header__status">
                <span class="status-indicator" id="apiStatus">
                    <span class="status-indicator__dot"></span>
                    <span class="status-indicator__text">Checking...</span>
                </span>
            </div>
        </header>

        <!-- ==================== MAIN CONTENT ==================== -->
        <main class="main">
            <!-- Hero Section -->
            <section class="hero">
                <h1 class="hero__title">Detect AI-Generated Voice</h1>
                <p class="hero__subtitle">
                    Analyze audio samples in <strong>Tamil</strong>, <strong>English</strong>,
                    <strong>Hindi</strong>, <strong>Malayalam</strong> & <strong>Telugu</strong>
                </p>
            </section>

            <!-- Content Grid -->
            <div class="content-grid">
                <!-- Input Panel -->
                <div class="panel panel--input">
                    <h2 class="panel__title">Upload Audio</h2>

                    <!-- File Upload Zone -->
                    <div class="file-upload" id="fileUpload">
                        <div class="file-upload__dropzone" id="dropzone">
                            <div class="file-upload__icon">
                                <svg width="48" height="48" viewBox="0 0 24 24" fill="none" stroke="currentColor"
                                    stroke-width="1.5">
                                    <path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4" />
                                    <polyline points="17 8 12 3 7 8" />
                                    <line x1="12" y1="3" x2="12" y2="15" />
                                </svg>
                            </div>
                            <p class="file-upload__text">Drop your MP3 file here</p>
                            <p class="file-upload__or">or</p>
                            <button type="button" class="file-upload__browse" id="browseBtn">
                                Browse Files
                            </button>
                            <p class="file-upload__hint">MP3 only • 1-60 seconds • Max 10MB</p>
                        </div>

                        <input type="file" id="fileInput" accept=".mp3,audio/mpeg" hidden>

                        <!-- File Preview -->
                        <div class="file-preview" id="filePreview" hidden>
                            <div class="file-preview__info">
                                <svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor"
                                    stroke-width="2">
                                    <path d="M9 18V5l12-2v13" />
                                    <circle cx="6" cy="18" r="3" />
                                    <circle cx="18" cy="16" r="3" />
                                </svg>
                                <div class="file-preview__details">
                                    <p class="file-preview__name" id="fileName">audio.mp3</p>
                                    <p class="file-preview__meta" id="fileMeta">5.2s • 1.2 MB</p>
                                </div>
                            </div>
                            <button type="button" class="file-preview__remove" id="removeBtn" aria-label="Remove file">
                                <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor"
                                    stroke-width="2">
                                    <line x1="18" y1="6" x2="6" y2="18" />
                                    <line x1="6" y1="6" x2="18" y2="18" />
                                </svg>
                            </button>
                        </div>
                    </div>

                    <!-- Language Selector -->
                    <div class="language-selector">
                        <label class="language-selector__label" for="languageSelect">Audio Language:</label>
                        <select class="language-selector__select" id="languageSelect">
                            <option value="Tamil">Tamil</option>
                            <option value="English" selected>English</option>
                            <option value="Hindi">Hindi</option>
                            <option value="Malayalam">Malayalam</option>
                            <option value="Telugu">Telugu</option>
                        </select>
                    </div>


                    <!-- Analyze Button -->
                    <button type="button" class="analyze-btn" id="analyzeBtn" disabled>
                        <span class="analyze-btn__idle">
                            <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor"
                                stroke-width="2">
                                <circle cx="11" cy="11" r="8" />
                                <line x1="21" y1="21" x2="16.65" y2="16.65" />
                            </svg>
                            <span>Analyze Voice Sample</span>
                        </span>
                        <span class="analyze-btn__loading" hidden>
                            <svg class="spinner" width="20" height="20" viewBox="0 0 24 24" fill="none"
                                stroke="currentColor" stroke-width="2">
                                <circle cx="12" cy="12" r="10" stroke-dasharray="32" stroke-dashoffset="32" />
                            </svg>
                            <span>Analyzing...</span>
                        </span>
                    </button>
                </div>

                <!-- Results Panel -->
                <div class="panel panel--results">
                    <h2 class="panel__title">Detection Results</h2>

                    <!-- Empty State -->
                    <div class="results-empty" id="resultsEmpty">
                        <svg width="64" height="64" viewBox="0 0 24 24" fill="none" stroke="currentColor"
                            stroke-width="1">
                            <path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z" />
                            <polyline points="14 2 14 8 20 8" />
                            <line x1="16" y1="13" x2="8" y2="13" />
                            <line x1="16" y1="17" x2="8" y2="17" />
                            <polyline points="10 9 9 9 8 9" />
                        </svg>
                        <p>Upload an audio file to see analysis results</p>
                    </div>

                    <!-- Results Content -->
                    <div class="results-content" id="resultsContent" hidden>
                        <!-- Verdict Card -->
                        <div class="verdict-card" id="verdictCard">
                            <div class="verdict-card__icon" id="verdictIcon">
                                <!-- Dynamic icon -->
                            </div>
                            <div class="verdict-card__label" id="verdictLabel">
                                <!-- AI_GENERATED or HUMAN -->
                            </div>
                        </div>

                        <!-- Confidence Meter -->
                        <div class="confidence-meter">
                            <div class="confidence-meter__header">
                                <span>Confidence Score</span>
                                <span class="confidence-meter__value" id="confidenceValue">--</span>
                            </div>
                            <div class="confidence-meter__track">
                                <div class="confidence-meter__fill" id="confidenceFill"></div>
                            </div>
                        </div>

                        <!-- Language -->
                        <div class="info-row">
                            <span class="info-row__label">Language:</span>
                            <span class="info-row__value" id="resultLanguage">--</span>
                        </div>

                        <!-- Explanation -->
                        <div class="explanation-card">
                            <div class="explanation-card__header">
                                <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor"
                                    stroke-width="2">
                                    <circle cx="12" cy="12" r="10" />
                                    <line x1="12" y1="16" x2="12" y2="12" />
                                    <line x1="12" y1="8" x2="12.01" y2="8" />
                                </svg>
                                <span>Analysis Explanation</span>
                            </div>
                            <p class="explanation-card__text" id="explanationText">
                                <!-- Dynamic explanation -->
                            </p>
                        </div>
                    </div>
                </div>
            </div>
        </main>

        <!-- ==================== FOOTER ==================== -->
        <footer class="footer">
            <p>🏆 India AI Impact Summit Buildathon 2026 • VoiceGuard Team</p>
        </footer>

        <!-- ==================== TOAST CONTAINER ==================== -->
        <div class="toast-container" id="toastContainer"></div>
    </div>

    <!-- Scripts -->
    <script type="module" src="js/app.js"></script>
</body>

</html>