/* ============================================
   Portfolio Section Component
   ============================================ */

.portfolio {
    background: var(--color-gray-50);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-4xl);
}

.portfolio-item {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    aspect-ratio: 16 / 10;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    transition: transform var(--transition-base);
    text-decoration: none;
    display: block;
}

.portfolio-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.portfolio-image {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.portfolio-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    opacity: 0.9;
    z-index: 1;
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    z-index: 2;
    padding: var(--spacing-xl);
    text-align: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.portfolio-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
}

.portfolio-category {
    font-size: var(--font-size-lg);
    opacity: 0.9;
}

.portfolio-cta {
    text-align: center;
    margin-top: var(--spacing-3xl);
}

/* Responsive */
@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .portfolio-overlay {
        opacity: 1;
    }
}