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

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            padding: 20px;
            color: #333;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            border-radius: 24px;
            box-shadow: 0 32px 64px rgba(0, 0, 0, 0.1);
            overflow: hidden;
            animation: slideIn 0.6s ease-out;
        }

        @keyframes slideIn {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .header {
            background: linear-gradient(135deg, #6366f1, #8b5cf6);
            padding: 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .header::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
            animation: rotate 20s linear infinite;
        }

        @keyframes rotate {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }

        .header h1 {
            color: white;
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }

        .header p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 1.2rem;
            position: relative;
            z-index: 1;
        }

        .main-content {
            padding: 40px;
            display: grid;
            grid-template-columns: 1fr 400px;
            gap: 40px;
        }

        .input-section {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .file-upload {
            border: 3px dashed #e5e7eb;
            border-radius: 16px;
            padding: 40px;
            text-align: center;
            transition: all 0.3s ease;
            cursor: pointer;
            position: relative;
            background: linear-gradient(135deg, #f8fafc, #f1f5f9);
        }

        .file-upload:hover {
            border-color: #6366f1;
            background: linear-gradient(135deg, #f0f4ff, #e0e7ff);
            transform: translateY(-2px);
        }

        .file-upload.dragover {
            border-color: #6366f1;
            background: linear-gradient(135deg, #eef2ff, #ddd6fe);
        }

        .file-icon {
            font-size: 3rem;
            margin-bottom: 16px;
            opacity: 0.6;
        }

        #fileInput {
            display: none;
        }

        .textarea-container {
            position: relative;
        }

        #textInput {
            width: 100%;
            min-height: 300px;
            padding: 24px;
            border: 2px solid #e5e7eb;
            border-radius: 16px;
            font-size: 16px;
            line-height: 1.6;
            resize: vertical;
            transition: all 0.3s ease;
            background: white;
            font-family: 'Monaco', 'Menlo', monospace;
        }

        #textInput:focus {
            outline: none;
            border-color: #6366f1;
            box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
        }

        .stats-panel {
            background: white;
            border-radius: 20px;
            padding: 32px;
            box-shadow: 0 16px 32px rgba(0, 0, 0, 0.05);
            border: 1px solid #f1f5f9;
            position: sticky;
            top: 20px;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-bottom: 32px;
        }

        .stat-card {
            background: linear-gradient(135deg, #f8fafc, #f1f5f9);
            padding: 20px;
            border-radius: 12px;
            text-align: center;
            transition: transform 0.2s ease;
            border: 1px solid #e2e8f0;
        }

        .stat-card:hover {
            transform: translateY(-2px);
        }

        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: #6366f1;
            display: block;
            margin-bottom: 4px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: #64748b;
            font-weight: 500;
        }

        .detailed-stats {
            border-top: 2px solid #f1f5f9;
            padding-top: 24px;
        }

        .detailed-stats h3 {
            margin-bottom: 16px;
            color: #1e293b;
            font-size: 1.1rem;
        }

        .stat-row {
            display: flex;
            justify-content: space-between;
            padding: 8px 0;
            border-bottom: 1px solid #f1f5f9;
        }

        .stat-row:last-child {
            border-bottom: none;
        }

        .processing-indicator {
            display: none;
            text-align: center;
            padding: 20px;
            color: #6366f1;
        }

        .spinner {
            width: 40px;
            height: 40px;
            border: 4px solid #e5e7eb;
            border-top: 4px solid #6366f1;
            border-radius: 50%;
            animation: spin 1s linear infinite;
            margin: 0 auto 16px;
        }

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

        .error-message {
            background: #fef2f2;
            color: #dc2626;
            padding: 16px;
            border-radius: 12px;
            margin: 16px 0;
            border: 1px solid #fecaca;
            display: none;
        }

        .clear-btn {
            background: linear-gradient(135deg, #ef4444, #dc2626);
            color: white;
            border: none;
            padding: 12px 24px;
            border-radius: 12px;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s ease;
            margin-top: 16px;
            width: 100%;
        }

        .clear-btn:hover {
            transform: translateY(-1px);
            box-shadow: 0 8px 16px rgba(239, 68, 68, 0.3);
        }

        @media (max-width: 768px) {
            .main-content {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            
            .header h1 {
                font-size: 2rem;
            }
            
            .stats-panel {
                position: static;
            }
        }