* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f5f7fa;
            padding: 20px;
        }
        .container {
            max-width: 900px;
            margin: 0 auto;
            background: white;
            border-radius: 12px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            overflow: hidden;
        }
        header {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            text-align: center;
            padding: 30px 20px;
        }
        h1 {
            margin-bottom: 10px;
            font-size: 2rem;
        }
        p.subtitle {
            opacity: 0.9;
            font-size: 1.1rem;
        }
        main {
            padding: 30px;
        }
        textarea {
            width: 100%;
            min-height: 180px;
            padding: 15px;
            border: 2px solid #e1e5e9;
            border-radius: 8px;
            font-size: 1rem;
            resize: vertical;
            transition: border-color 0.3s;
        }
        textarea:focus {
            outline: none;
            border-color: #667eea;
        }
        button {
            display: block;
            width: 100%;
            padding: 14px;
            margin: 20px 0;
            background: linear-gradient(45deg, #667eea, #764ba2);
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
        }
        button:hover {
            transform: translateY(-2px);
            background: linear-gradient(45deg, #764ba2, #667eea);
        }
        .results {
            margin-top: 25px;
            border-top: 1px solid #e1e5e9;
            padding-top: 20px;
        }
        .loading {
            text-align: center;
            color: #6c757d;
            font-style: italic;
            margin: 20px 0;
        }
        .success {
            background-color: #d4edda;
            border-left: 4px solid #155724;
            padding: 15px;
                        border-radius: 6px;
            margin: 15px 0;
        }
        .error {
            background-color: #fff3cd;
            border-left: 4px solid #856404;
            padding: 15px;
            border-radius: 6px;
            margin: 15px 0;
        }
        .error strong {
            color: #856404;
        }
        .footer {
            text-align: center;
            padding: 20px;
            color: #6c757d;
            font-size: 0.9rem;
            border-top: 1px solid #e1e5e9;
        }

        /* Адаптивность */
        @media (max-width: 768px) {
            .container {
                margin: 10px;
                border-radius: 8px;
            }
            header {
                padding: 20px;
            }
            h1 {
                font-size: 1.8rem;
            }
            main {
                padding: 20px;
            }
        }