* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        body {
            line-height: 1.6;
            color: #333;
            background-color: #f9f9f9;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header & Navigation */
        header {
            width: 100%;/*Я добавил*/
            background: linear-gradient(135deg, #2c3e50, #1A237E);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 1.3rem;
            font-weight: 700;
            display: flex;
            align-items: center;
        }

        .logo i {
            margin-right: 10px;
            color: #3498db;
        }

        nav ul {
            display: flex;
            list-style: none;
        }

        nav ul li {
            margin-left: 1.5rem;
        }

        nav ul li a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 4px;
            transition: all 0.3s ease;
        }

        nav ul li a:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: #CCECFF; /*#3498db;*/
        }

        nav ul li a.active {
            background-color: #3498db;
        }

        .menu-toggle {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
        }

        /* Main Content */
        main {
            min-height: calc(100vh - 140px);
            padding: 2rem 0;
        }

        .page {
            display: none;
        }

        .page.active {
            display: block;
            animation: fadeIn 0.5s ease;
        }

        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }

        .hero {
            background: linear-gradient(rgba(44, 62, 80, 0.9), rgba(44, 62, 80, 0.8)), url('../foto/photo_0.jpg?ixlib=rb-4.0.3&auto=format&fit=crop&w=1500&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 4rem 2rem;
            border-radius: 10px;
            text-align: center;
            margin-bottom: 2rem;
        }

        .hero h1 {
            font-size: 1.4rem;
            margin-bottom: 1rem;
        }

        .hero p {
            font-size: 1.0rem;
            max-width: 700px;
            margin: 0 auto;
        }

        .content-section {
            background-color: white;
            padding: 2rem;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            margin-bottom: 2rem;
        }

        .content-section h2 {
            color: #2c3e50;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #3498db;
            display: inline-block;
            font-size: 1.2rem;
        }

        .content-section p {
            margin-bottom: 1rem;
        }

        .content-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1.5rem;
            margin-top: 2rem;
        }

        .card {
            background-color: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s ease;
        }

        .card:hover {
            transform: translateY(-5px);
        }

        .card-img {
            height: 180px;
            background-color: #3498db;
            background-size: cover;
            background-position: center;
        }

        .card-content {
            padding: 1.5rem;
        }

        .card h3 {
            color: #2c3e50;
            margin-bottom: 0.5rem;
        }    

    

        /* Footer */
        footer {
            background-color: #2c3e50;/*Тут цвет заливки картинки Приветствуем на нашем сайте*/
            color: white;
            padding: 2rem 0;
            text-align: center;
        }

        .footer-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            color: white;
        }

        .social-links {
            display: flex;
            gap: 1rem;
        }

        .social-links a {
            color: white;
            font-size: 1.2rem;
            transition: color 0.3s ease;
        }

        .social-links a:hover {
            color: #3498db;
        }

        
        @media (max-width: 1024px) { /*здесь по количеству точек определяется, что счиитать сотовиком, а что компом*/
            
            header {
                position:static;
            }
            
            .header-content {
                flex-direction: column;
                align-items: flex-start;
            }
            
            nav {
                width: 100%;
                margin-top: 1rem;
                display: none;
            }
            
            nav.active {
                display: block;
            }
            
            nav ul {
                flex-direction: column;
            }
            
            nav ul li {
                margin: 0;
                margin-bottom: 0.5rem;
            }
            
            nav ul li a {
                display: block;
                padding: 10px;
            }
            
            .menu-toggle {
                display: block;
                position: absolute;
                top: 1.2rem;
                right: 20px;
            }
            
            .hero h1 {
                font-size: 1,8rem;
            }
            
            .footer-content {
                flex-direction: column;
                gap: 1rem;
            }
        }