/* Стили для галереи с фильтрами */
.portfolio-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.portfolio-filter-btn {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 8px 20px;
    margin: 0 5px 10px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.portfolio-filter-btn:hover {
    background-color: rgba(var(--primary-color-rgb), 0.1);
    transform: translateY(-2px);
}

.portfolio-filter-btn.active {
    background-color: var(--primary-color);
    color: white;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 20px;
}

.portfolio-item {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.5s ease;
    transform: translateY(0);
    opacity: 1;
    height: 250px;
}

.portfolio-item.hidden {
    display: none;
}

.portfolio-item.fade-out {
    opacity: 0;
    transform: translateY(20px);
}

.portfolio-item.fade-in {
    opacity: 1;
    transform: translateY(0);
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.5s ease;
}

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: white;
    padding: 20px;
    transform: translateY(0);
    transition: all 0.3s ease;
}

.portfolio-item:hover .portfolio-overlay {
    transform: translateY(-10px);
}

.portfolio-item:hover img {
    transform: scale(1.05);
}

.portfolio-overlay h3 {
    margin: 0 0 10px;
    font-size: 18px;
}

.portfolio-overlay p {
    margin: 0;
    font-size: 14px;
    opacity: 0.8;
}

.portfolio-category {
    position: absolute;
    top: 15px;
    right: 15px;
    background-color: var(--accent-color);
    color: #333;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
    z-index: 2;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

@media screen and (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    .portfolio-filter-btn {
        padding: 6px 15px;
        font-size: 12px;
        margin-bottom: 8px;
    }
}