.portfolio-section {
    padding: 40px 40px;
    color: white;
    position: relative;
    width: 100%;
    height: 100vh;
}

.portfolio-title {
    font-size: 30px;
    margin-bottom: 20px;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    /* 5 คอลัมน์พอดี */
    gap: 16px;
}


.portfolio-card {
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.portfolio-card img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.portfolio-card .overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    color: #fff;
    font-weight: bold;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transform: scale(1);
    transition: opacity 0.3s ease;
    font-size: 16px;
}

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

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

@media (max-width: 1024px) {
    .portfolio-grid {
        grid-template-columns: repeat(3, 1fr);
        /* Tablet */
    }
}

@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
        /* Mobile */
    }
}

@media (max-width: 480px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
        /* จอเล็กมาก */
    }
}