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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            padding: 20px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: white;
            border-radius: 15px;
            box-shadow: 0 20px 60px rgba(0,0,0,0.3);
            padding: 40px;
        }

        .header {
            text-align: center;
            margin-bottom: 30px;
        }

        .header h1 {
            color: #667eea;
            font-size: 2.5em;
            margin-bottom: 10px;
        }

        .header p {
            color: #666;
            font-size: 1.1em;
        }

        .training-section {
            background: #f8f9fa;
            padding: 20px;
            border-radius: 10px;
            margin-bottom: 30px;
        }

        .training-controls {
            display: flex;
            gap: 15px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .training-controls input {
            flex: 1;
            min-width: 150px;
            padding: 12px;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1em;
        }

        .btn {
            padding: 12px 30px;
            border: none;
            border-radius: 8px;
            font-size: 1em;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s;
        }

        .btn-primary {
            background: #667eea;
            color: white;
        }

        .btn-primary:hover {
            background: #5568d3;
            transform: translateY(-2px);
        }

        .btn-secondary {
            background: #48bb78;
            color: white;
        }

        .btn-secondary:hover {
            background: #38a169;
        }

        .btn:disabled {
            background: #ccc;
            cursor: not-allowed;
            transform: none;
        }

        .progress-container {
            margin: 20px 0;
        }

        .progress-bar {
            width: 100%;
            height: 30px;
            background: #e0e0e0;
            border-radius: 15px;
            overflow: hidden;
            margin-bottom: 10px;
        }

        .progress-fill {
            height: 100%;
            background: linear-gradient(90deg, #667eea, #764ba2);
            width: 0%;
            transition: width 0.3s;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
        }

        .metrics {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 15px;
            margin-top: 20px;
        }

        .metric-card {
            background: white;
            padding: 20px;
            border-radius: 10px;
            text-align: center;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }

        .metric-card label {
            display: block;
            color: #666;
            font-size: 0.9em;
            margin-bottom: 8px;
        }

        .metric-card .value {
            font-size: 2em;
            font-weight: bold;
            color: #667eea;
        }

        .language-select {
            margin-bottom: 20px;
        }

        .language-select label {
            display: block;
            margin-bottom: 8px;
            font-weight: bold;
            color: #333;
        }

        .language-select select {
            width: 100%;
            padding: 12px;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1em;
        }

        .code-inputs {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 20px;
        }

        .code-input {
            display: flex;
            flex-direction: column;
        }

        .code-input label {
            margin-bottom: 8px;
            font-weight: bold;
            color: #333;
        }

        .code-input textarea {
            flex: 1;
            padding: 15px;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-family: 'Courier New', monospace;
            font-size: 0.9em;
            resize: vertical;
            min-height: 300px;
        }

        .action-buttons {
            display: flex;
            gap: 15px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .action-buttons .btn {
            flex: 1;
            min-width: 200px;
        }

        .result-section {
            margin-top: 30px;
            padding: 30px;
            border-radius: 10px;
            display: none;
        }

        .result-section.plagiarized {
            background: #fee;
            border: 3px solid #f88;
        }

        .result-section.original {
            background: #efe;
            border: 3px solid #8f8;
        }

        .result-header {
            font-size: 1.8em;
            font-weight: bold;
            margin-bottom: 10px;
        }

        .result-header.plagiarized {
            color: #c33;
        }

        .result-header.original {
            color: #3c3;
        }

        .confidence {
            font-size: 1.3em;
            margin-bottom: 20px;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 15px;
        }

        .feature-card {
            background: white;
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }

        .feature-card label {
            display: block;
            color: #666;
            font-size: 0.9em;
            margin-bottom: 5px;
        }

        .feature-card .value {
            font-size: 1.8em;
            font-weight: bold;
            color: #667eea;
        }

        .info-section {
            margin-top: 30px;
            padding: 20px;
            background: #f8f9fa;
            border-radius: 10px;
        }

        .info-section h2 {
            color: #667eea;
            margin-bottom: 15px;
        }

        .info-section p {
            color: #666;
            line-height: 1.6;
            margin-bottom: 10px;
        }

        .training-status {
            font-size: 1.1em;
            color: #666;
            margin-bottom: 10px;
        }

        @media (max-width: 768px) {
            .code-inputs {
                grid-template-columns: 1fr;
            }

            .action-buttons {
                flex-direction: column;
            }

            .action-buttons .btn {
                width: 100%;
            }
        }

        .spinner {
            border: 3px solid #f3f3f3;
            border-top: 3px solid #667eea;
            border-radius: 50%;
            width: 20px;
            height: 20px;
            animation: spin 1s linear infinite;
            display: inline-block;
            margin-right: 10px;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }