/* ── Portfolio grid ──────────────────────────────────────── */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.75rem;
}

.portfolio-card {
  background: var(--bg);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--ease-md), box-shadow var(--ease-md);
}
.portfolio-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-xl); }

.portfolio-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/10;
  background: var(--gray-100);
}
.portfolio-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.portfolio-card:hover .portfolio-thumb img { transform: scale(1.05); }

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,150,213,.82);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--ease-md);
}
.portfolio-card:hover .portfolio-overlay { opacity: 1; }

.portfolio-overlay a {
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: .95rem;
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .6rem 1.25rem;
  border: 2px solid rgba(255,255,255,.8);
  border-radius: var(--radius);
  transition: var(--ease);
}
.portfolio-overlay a:hover { background: rgba(255,255,255,.15); }
.portfolio-overlay svg { width: 18px; height: 18px; stroke: #fff; fill: none; stroke-width: 2; }

.portfolio-info { padding: 1.25rem 1.5rem; }
.portfolio-info h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: .4rem; }
.portfolio-info p  { font-size: .92rem; color: var(--text-muted); line-height: 1.6; }