.portfolio-section {
    padding: 5rem 0;
    background: var(--bg-light);
}

.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.filter-btn {
    padding: 0.5rem 1.5rem;
    border: none;
    border-radius: 25px;
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.portfolio-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.portfolio-image {
    position: relative;
    overflow: hidden;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-item:hover img {
    transform: scale(1.1);
}

.portfolio-overlay h3 {
    color: white;
    margin-bottom: 1rem;
}

.portfolio-overlay p {
    color: rgba(255,255,255,0.8);
    text-align: center;
    margin-bottom: 1.5rem;
}

.view-project {
    padding: 0.5rem 1.5rem;
    border: 2px solid white;
    border-radius: 25px;
    color: white;
    background: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
}

.view-project:hover {
    background: white;
    color: var(--accent-color);
}

@media (max-width: 768px) {
    .portfolio-filters {
        flex-wrap: wrap;
    }
    
    .portfolio-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}