/* Стили категорий */
        .portfolio-categories {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin-bottom: 3rem;
            flex-wrap: wrap;
        }
        
        .category-btn {
            padding: 0.8rem 2rem;
            background: rgba(255, 255, 255, 0.1);
            color: var(--light);
            border: none;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .category-btn.active, .category-btn:hover {
            background: var(--primary);
        }
        
        /* Стили подкатегорий */
        .section-subtitle {
            text-align: center;
            font-size: 1.8rem;
            margin-bottom: 2rem;
            color: var(--light);
        }
        
        .subcategories {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin-bottom: 2rem;
            flex-wrap: wrap;
        }
        
        .subcategory-btn {
            padding: 0.6rem 1.5rem;
            background: rgba(255, 255, 255, 0.05);
            color: var(--light);
            border: none;
            border-radius: 50px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .subcategory-btn.active, .subcategory-btn:hover {
            background: var(--primary);
        }
        
        /* Стили карточек проектов */
        .project-grid-container {
            display: flex;
            justify-content: center;
            padding: 0 20px;
            margin-bottom: 40px;
        }
        
        .project-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 30px;
            max-width: 1200px;
            width: 100%;
        }
        
        .project-card {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 10px;
            overflow: hidden;
            transition: var(--transition);
            cursor: pointer;
        }
        
        .project-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
        }
        
        .project-img {
            height: 200px;
            overflow: hidden;
        }
        
        .project-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        
        .project-card:hover .project-img img {
            transform: scale(1.05);
        }
        
        .project-content {
            padding: 1.5rem;
        }
        
        .project-title {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--primary);
        }

        .project-modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.9);
            z-index: 2000;
            overflow-y: auto;
            padding: 2rem;
        }
        
        .modal-content {
            max-width: 1000px;
            margin: 2rem auto;
            background: var(--dark);
            border-radius: 10px;
            overflow: hidden;
            position: relative;
        }
        
        .modal-close {
            position: absolute;
            top: 1rem;
            right: 1rem;
            font-size: 1.5rem;
            color: var(--light);
            cursor: pointer;
            z-index: 2;
        }
        
        .modal-body {
            padding: 2rem;
        }
        
        .modal-title {
            font-size: 2rem;
            margin-bottom: 1rem;
            color: var(--primary);
        }
        
        .modal-video {
            width: 100%;
            margin: 1rem 0;
        }
        
        .modal-description {
            margin-bottom: 1.5rem;
            line-height: 1.7;
        }
        
        .modal-images {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1rem;
            margin-top: 1rem;
        }
        
        .modal-images img {
            width: 100%;
            border-radius: 5px;
        }
        
        /* Стили для скрытия/показа секций */
        .portfolio-section {
            display: none;
        }
        
        .portfolio-section.active {
            display: block;
        }
        
        .subcategory-section {
            display: none;
        }
        
        .subcategory-section.active {
            display: block;
        }

.nav-right-elements {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-left: auto;
    margin-right: 2rem;
}

.nav-collab-logo img {
    height: 30px;
    transition: all 0.3s ease;
}

.nav-close-btn {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--light);
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

.nav-close-btn:hover {
    color: var(--primary);
    transform: scale(1.1);
}