.portfolio-item {
    transition: transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
}

.portfolio-item:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.portfolio-item .content-box {
    background: rgba(0, 0, 0, 0.8);
    color: white;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 10px;
}

.portfolio-item:hover .content-box {
    opacity: 1;
}