/* PORTFOLIO PAGE */
.portfolio-filters { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 3rem; }
.filter-btn {
  padding: 0.55rem 1.25rem; border-radius: 999px;
  border: 1.5px solid var(--border); background: transparent;
  font-family: var(--font-body); font-size: 0.875rem; font-weight: 500;
  color: var(--text-muted); transition: var(--transition); cursor: pointer;
}
.filter-btn:hover, .filter-btn.active { background: var(--navy); border-color: var(--navy); color: #fff; }
.filter-btn.active { background: var(--orange); border-color: var(--orange); }

.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-bottom: 4rem; }
.portfolio-item { border-radius: var(--radius-lg); overflow: hidden; border: 1.5px solid var(--border); background: var(--bg); transition: var(--transition); }
.portfolio-item:hover { box-shadow: var(--shadow-lg); border-color: var(--border-dark); transform: translateY(-3px); }
.portfolio-item.hidden { display: none; }
.p-img {
  aspect-ratio: 4/3; background: var(--bg-soft); position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.p-img svg { width: 75%; height: 75%; }
.p-overlay {
  position: absolute; inset: 0; background: rgba(15,28,46,0.85);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity var(--transition);
}
.portfolio-item:hover .p-overlay { opacity: 1; }
.p-overlay span { font-family: var(--font-display); font-weight: 700; font-size: 0.85rem; color: #fff; text-transform: uppercase; letter-spacing: 0.1em; }
.p-info { padding: 1.25rem 1.25rem 1.5rem; }
.p-info h4 { font-family: var(--font-display); font-weight: 700; font-size: 0.95rem; color: var(--navy); margin-bottom: 0.3rem; }
.p-tag { font-size: 0.75rem; color: var(--text-muted); }
.portfolio-note { text-align: center; background: var(--bg-soft); border: 1.5px solid var(--border); border-radius: var(--radius-xl); padding: 3rem; display: flex; flex-direction: column; align-items: center; }
.portfolio-note p { color: var(--text-muted); font-size: 0.9rem; }

@media (max-width: 768px) { .portfolio-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .portfolio-grid { grid-template-columns: 1fr; } }