/* Общие стили */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Arial', sans-serif;
        }
        
        body {
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
        }
        
        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        /* Шапка */
        header {
            background-color: #fff;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        
        .logo {
            font-size: 24px;
            font-weight: bold;
            color: #2c3e50;
        }
        
        nav ul {
            display: flex;
            list-style: none;
        }
        
        nav ul li {
            margin-left: 25px;
        }
        
        nav ul li a {
            text-decoration: none;
            color: #2c3e50;
            font-weight: 500;
            transition: color 0.3s;
        }
        
        nav ul li a:hover {
            color: #3498db;
        }
        
        /* Главный баннер */
        .hero {
            background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url(/images/banner.jpg) no-repeat center center/cover;
            color: white;
            text-align: center;
            padding: 100px 0;
        }
        
        .hero h1 {
            font-size: 3rem;
            margin-bottom: 20px;
        }
        
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto;
        }
        
        /* Секции */
        section {
            padding: 80px 0;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 50px;
            font-size: 2rem;
            color: #2c3e50;
        }
        
        .about-content, .expertise-content, .developments-content, .clients-content {
            background: white;
            padding: 40px;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin-bottom: 30px;
        }
        
        .expertise-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
            margin-top: 30px;
        }
        
        .expertise-item {
            background: #f8f9fa;
            padding: 20px;
            border-radius: 8px;
            border-left: 4px solid #3498db;
        }
        
        .developments-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
        }
        
        .development-item {
            background: #f8f9fa;
            padding: 20px;
            border-radius: 8px;
            border-top: 4px solid #2c3e50;
        }
        
        .development-item h3 {
            margin-bottom: 15px;
            color: #2c3e50;
        }
        
        /* Форма */
        .contact-form {
            background: white;
            padding: 40px;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            max-width: 600px;
            margin: 0 auto;
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
        }
        
        .form-group input, .form-group textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid #ddd;
            border-radius: 4px;
            font-size: 16px;
        }
        
        .form-group textarea {
            height: 120px;
            resize: vertical;
        }
        
        .submit-btn {
            background: #3498db;
            color: white;
            border: none;
            padding: 12px 30px;
            border-radius: 4px;
            cursor: pointer;
            font-size: 16px;
            transition: background 0.3s;
        }
        
        .submit-btn:hover {
            background: #2980b9;
        }
        
        /* Футер */
        footer {
            background: #2c3e50;
            color: white;
            padding: 60px 0 30px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 40px;
        }
        
        .footer-column h3 {
            margin-bottom: 20px;
            font-size: 1.2rem;
        }
        
        .footer-column ul {
            list-style: none;
        }
        
        .footer-column ul li {
            margin-bottom: 10px;
        }
        
        .footer-column ul li a {
            color: #ddd;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-column ul li a:hover {
            color: #3498db;
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #ddd;
        }
        
        /* Адаптивность */
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                text-align: center;
            }
            
            nav ul {
                margin-top: 15px;
                flex-direction: column;
            }
            
            nav ul li {
                margin: 5px 0;
            }
            
            .hero h1 {
                font-size: 2rem;
            }
            
            section {
                padding: 50px 0;
            }
            
            .section-title {
                font-size: 1.5rem;
            }
        }