/* Стили только для Footer */
        .main-footer {
            width: 100%;
            background: linear-gradient(135deg, #0c1b25 0%, #152533 50%, #1a2a3a 100%);
            color: #ecf0f1;
            padding: 70px 0 20px;
            position: relative;
            overflow: hidden;
            border-top: 5px solid #27ae60;
        }

        .main-footer::before {
            content: '';
            position: absolute;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(39, 174, 96, 0.05) 0%, transparent 70%);
            top: -200px;
            left: -200px;
            z-index: 1;
        }

        .main-footer::after {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(52, 152, 219, 0.05) 0%, transparent 70%);
            bottom: -150px;
            right: -150px;
            z-index: 1;
        }

        .main-footer .container {
            max-width: 1200px;
            width: 100%;
            margin: 0 auto;
            padding: 0 20px;
            position: relative;
            z-index: 2;
        }

        .main-footer .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 50px;
        }

        .main-footer .footer-column {
            padding: 0 15px;
        }

        .main-footer .footer-column h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 25px;
            color: #fff;
            position: relative;
            padding-bottom: 10px;
        }

        .main-footer .footer-column h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background: linear-gradient(90deg, #27ae60, #2ecc71);
            border-radius: 2px;
        }

        .main-footer .footer-column p {
            font-size: 1rem;
            line-height: 1.7;
            color: #b0b7c3;
            margin-bottom: 25px;
        }

        /* Стили для социальных иконок */
        .main-footer .social-links {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
        }

        .main-footer .social-links a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 1.2rem;
            transition: all 0.3s ease;
            text-decoration: none;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .main-footer .social-links a:hover {
            background: rgba(39, 174, 96, 0.8);
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(39, 174, 96, 0.3);
            border-color: #27ae60;
        }

        /* Стили для списка контактов и ссылок */
        .main-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .main-footer .footer-links li {
            margin-bottom: 15px;
            display: flex;
            align-items: flex-start;
            color: #b0b7c3;
            font-size: 1rem;
            line-height: 1.6;
        }

        .main-footer .footer-links li i {
            color: #27ae60;
            margin-right: 12px;
            font-size: 1.1rem;
            margin-top: 3px;
            flex-shrink: 0;
        }

        .main-footer .footer-links li a {
            color: #b0b7c3;
            text-decoration: none;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            width: 100%;
        }

        .main-footer .footer-links li a:hover {
            color: #27ae60;
            transform: translateX(5px);
        }

        .main-footer .footer-links li a i {
            color: #27ae60;
            margin-right: 12px;
            font-size: 0.9rem;
            transition: transform 0.3s ease;
        }

        .main-footer .footer-links li a:hover i {
            transform: rotate(90deg);
        }

        /* Стили для блока копирайта */
        .main-footer .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.95rem;
            color: #8a94a6;
        }

        /* Декоративные элементы */
        .main-footer .decor-cube {
            position: absolute;
            width: 60px;
            height: 60px;
            background: rgba(39, 174, 96, 0.05);
            border: 1px solid rgba(39, 174, 96, 0.1);
            z-index: 1;
            transform: rotate(15deg);
            animation: rotate-cube 30s infinite linear;
        }

        .main-footer .decor-cube:nth-child(1) {
            top: 15%;
            left: 5%;
            width: 40px;
            height: 40px;
            animation-delay: 0s;
        }

        .main-footer .decor-cube:nth-child(2) {
            bottom: 20%;
            right: 8%;
            width: 50px;
            height: 50px;
            animation-delay: -10s;
        }

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

        /* Адаптивность */
        @media (max-width: 992px) {
            .main-footer .footer-content {
                grid-template-columns: repeat(2, 1fr);
                gap: 30px;
            }
            
            .main-footer {
                padding: 60px 0 20px;
            }
            
            .main-footer .footer-column h3 {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 768px) {
            .main-footer .footer-content {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            
            .main-footer {
                padding: 50px 0 20px;
            }
            
            .main-footer .footer-column {
                padding: 0;
            }
            
            .main-footer .footer-column h3 {
                font-size: 1.3rem;
            }
            
            .main-footer .social-links a {
                width: 40px;
                height: 40px;
                font-size: 1.1rem;
            }
            
            .main-footer .decor-cube {
                display: none;
            }
        }

        @media (max-width: 480px) {
            .main-footer {
                padding: 40px 0 20px;
            }
            
            .main-footer .footer-column h3 {
                font-size: 1.2rem;
            }
            
            .main-footer .footer-column p {
                font-size: 0.95rem;
            }
            
            .main-footer .footer-links li {
                font-size: 0.95rem;
            }
            
            .main-footer .social-links {
                gap: 12px;
            }
            
            .main-footer .social-links a {
                width: 38px;
                height: 38px;
                font-size: 1rem;
            }
        }

        /* Стили для демонстрационного контента (не входят в футер) */
        .demo-content {
            padding: 60px 20px;
            background-color: #f8f9fa;
            color: #333;
            min-height: 300px;
        }
        
        .demo-container {
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .demo-content h2 {
            color: #1a2a3a;
            margin-bottom: 20px;
        }