.contact-info {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px;
    border-radius: 15px;
    margin-top: 30px;
    text-align: center;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.contact-info h3 {
    color: white;
    margin-bottom: 20px;
    border: none;
    padding: 0;
}

.contact-info p {
    color: white;
    margin-bottom: 10px;
}

.contact-info a {
    color: #ffeb3b;
    text-decoration: none;
}

.contact-info a:hover {
    text-decoration: underline;
}

.header {
            padding: 20px;
            text-align: center;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(15px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.2);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        ul {
            margin-bottom: 20px;
        }
        li {
            margin-bottom: 8px;
            color:rgb(255, 255, 255);
        }
        .highlight {
            background-color: #e8f4fd;
            padding: 15px;
            border-radius: 5px;
            border-left: 4px solid #3498db;
            margin: 15px 0;
        }
        .new-content {
            background-color: #d5f4e6;
            border-left: 4px solid #27ae60;
        }

        .header h1 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 10px;
            text-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
            animation: glow 3s ease-in-out infinite alternate;
        }

        @keyframes glow {
            from { text-shadow: 0 0 20px rgba(255, 255, 255, 0.5); }
            to { text-shadow: 0 0 30px rgba(255, 255, 255, 0.8), 0 0 40px rgba(102, 126, 234, 0.3); }
        }

        .header .user-welcome {
            font-size: 1.1rem;
            opacity: 0.9;
            margin-bottom: 10px;
        }

        /* Навигация */
        .nav {
            display: flex;
            justify-content: center;
            padding: 20px;
            gap: 15px;
            flex-wrap: wrap;
        }

        .nav-item {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 15px;
            padding: 12px 20px;
            text-decoration: none;
            color: #fff;
            font-weight: 600;
            transition: all 0.3s ease;
            font-size: 0.9rem;
            position: relative;
            overflow: hidden;
        }

        .nav-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: left 0.5s;
        }

        .nav-item:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
            background: rgba(255, 255, 255, 0.2);
        }

        .nav-item:hover::before {
            left: 100%;
        }

        .nav-item.active {
            background: rgba(78, 205, 196, 0.2);
            border-color: #4ecdc4;
        }
        
.contact-item {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 15px;
    border-left: 4px solid #667eea;
}

.contact-item i {
    font-size: 1.5em;
    color: #667eea;
}

@media (max-width: 768px) {
    .contact-info {
        grid-template-columns: 1fr;
    }
}