.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.portfolio-item {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

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

.portfolio-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9;
}

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

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

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    padding: 20px;
    color: white;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.portfolio-item:hover .portfolio-overlay {
    transform: translateY(0);
}

.portfolio-overlay h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.portfolio-overlay p {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Portfolio Filters */
.portfolio-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 30px;
    padding: 0 15px;
}

.filter-btn {
    padding: 8px 20px;
    border: none;
    background: var(--light-color);
    border-radius: 25px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    white-space: nowrap;
}

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