/* portfolio.css — filter bar and project grid */

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 40px;
}
.filter-btn {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--neutral-700);
  border-radius: var(--radius-pill);
  padding: 9px 20px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.filter-btn:hover { border-color: var(--primary-300); color: var(--primary); }
.filter-btn.is-active { background: var(--primary); border-color: var(--primary); color: #fff; }

.work-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }

.work-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease), opacity 0.28s var(--ease);
}
.work-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.work-card.is-hidden { display: none; }

.work-thumb { position: relative; overflow: hidden; background: var(--neutral-100); }
.work-thumb img {
  width: 100%;
  aspect-ratio: 9 / 7;
  object-fit: cover;
  transition: transform 0.5s var(--ease);
}
.work-card:hover .work-thumb img { transform: scale(1.04); }
.work-cat {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--primary-700);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
}

.work-body { padding: 22px 24px 26px; }
.work-body h3 { font-size: 1.1rem; margin-bottom: 6px; }
.work-body p { color: var(--text-muted); font-size: 0.93rem; margin-bottom: 14px; }
.work-meta { display: flex; flex-wrap: wrap; gap: 8px; }

.work-empty {
  text-align: center;
  color: var(--text-muted);
  padding: 40px 0;
  display: none;
}
.work-empty.is-visible { display: block; }

@media (max-width: 640px) {
  .work-grid { grid-template-columns: 1fr; }
}