.portfolio-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 60px;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 32px;
}

.project-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.5s var(--transition-smooth);
}

.project-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.project-card.filtered-out {
    display: none;
}

.project-card:hover {
    border-color: var(--text-secondary);
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(255, 255, 255, 0.05);
}

.project-cover {
    position: relative;
    height: 200px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
    overflow: hidden;
}

.project-placeholder {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: var(--font-pixel);
    font-size: 2rem;
    color: var(--text-muted);
    opacity: 0.3;
}

.project-card:hover .project-placeholder {
    opacity: 0.5;
    transform: translate(-50%, -50%) scale(1.1);
}

.project-info {
    padding: 28px;
}

.project-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
}

.project-year {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.project-type {
    font-family: var(--font-pixel);
    font-size: 0.5rem;
    padding: 4px 10px;
    border: 1px solid var(--text-muted);
    color: var(--text-secondary);
    text-transform: uppercase;
}

.project-title {
    font-family: var(--font-pixel);
    font-size: 0.875rem;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.6;
}

.project-description {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.project-tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 4px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-muted);
}

.project-links {
    display: flex;
    gap: 16px;
}

.project-link {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color 0.3s;
}

.project-link svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
}

.project-link:hover {
    color: var(--text-primary);
}

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

    .project-cover {
        height: 160px;
    }

    .project-info {
        padding: 20px;
    }
}