/* ─────────────────────────────────────────────────────────────────────────
   📂 PORTFOLIO FILTERS & GRID
   ───────────────────────────────────────────────────────────────────────── */
.filter-bar {
    display: flex;
    justify-content: center;
    gap: var(--space-16);
    flex-wrap: wrap;
    margin-bottom: var(--space-48);
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--stroke-subtle);
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: var(--radius-pill);
    font-size: 14px;
    font-weight: var(--weight-medium);
    cursor: pointer;
    transition: all 0.3s var(--easing-standard);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
}

.filter-btn:hover {
    border-color: var(--brand-accent);
    color: var(--brand-accent);
    background: rgba(249, 115, 22, 0.05);
}

.filter-btn.active {
    background: var(--brand-accent);
    color: white;
    border-color: var(--brand-accent);
    box-shadow: 0 0 15px rgba(249, 115, 22, 0.4);
}

.portfolio-item {
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.portfolio-item.hidden {
    display: none;
}

/* ─────────────────────────────────────────────────────────────────────────
   📂 GALLERY LIGHTBOX
   ───────────────────────────────────────────────────────────────────────── */
.lightbox-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 10000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.lightbox-modal.active {
    opacity: 1;
    pointer-events: auto;
}

.lightbox-content {
    max-width: 90%;
    max-height: 90vh;
    object-fit: contain;
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.8);
    border: 1px solid var(--stroke-subtle);
}

.lightbox-close {
    position: absolute;
    top: 30px;
    right: 30px;
    color: white;
    font-size: 40px;
    cursor: pointer;
    z-index: 10001;
    transition: color 0.2s;
    background: transparent;
    border: none;
}

.lightbox-close:hover {
    color: var(--brand-accent);
}
/* Custom Grid for consistent sizing */
.portfolio-grid {
    display: grid;
    gap: var(--space-32);
    grid-template-columns: 1fr; /* Mobile */
}

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

@media (min-width: 1200px) {
    .portfolio-grid {
        grid-template-columns: repeat(3, 1fr); /* Desktop strict 3 columns */
    }
}