/* Portfolio Section Styles */
#portfolio {
    padding: 2rem 0;
}

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

.portfolio-item {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.portfolio-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.portfolio-item h3 {
    color: var(--primary-blue);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.portfolio-item .tech-stack {
    color: var(--accent-color, #666);
    font-size: 0.9rem;
    font-style: italic;
    margin-bottom: 1rem;
}

.portfolio-item p {
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 1rem;
}

.portfolio-item .demo-link {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.75rem 1.5rem;
    background: var(--primary-blue);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: background 0.3s ease, transform 0.2s ease;
}

.portfolio-item .demo-link:hover {
    background: var(--primary-blue-dark, #1e5a8e);
    transform: translateY(-2px);
}

.portfolio-item .demo-link:active {
    transform: translateY(0);
}

@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .portfolio-item {
        padding: 1.5rem;
    }

    .portfolio-item h3 {
        font-size: 1.25rem;
    }
}