/* ===========================
   PORTFOLIO FILTERS
   =========================== */

.portfolio-filters {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-bottom: var(--spacing-xl);
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    background: transparent;
    color: var(--color-text);
    border: 2px solid rgba(57, 255, 20, 0.3);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-base);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-btn:hover {
    background: rgba(57, 255, 20, 0.1);
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-2px);
}

.filter-btn.active {
    background: var(--color-primary);
    color: var(--color-black);
    border-color: var(--color-primary);
    box-shadow: 0 4px 15px rgba(57, 255, 20, 0.3);
}

.filter-btn i {
    font-size: 1rem;
}

/* Portfolio Item Filtering */
.portfolio-item {
    transition: all 0.5s ease;
    opacity: 1;
    transform: scale(1);
}

.portfolio-item.hide {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .portfolio-filters {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-btn {
        width: 100%;
        justify-content: center;
    }
}