.portfolio-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin: 2rem 0;
}

.portfolio h3 {
  margin-top: 1rem;
}

.project {
  border: 1px solid var(--color-border);
  padding: 1rem;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease;
}

.project:hover {
  transform: translateY(-2px);
  box-shadow: var(--box-shadow-hover);
}

/* Portfolio images: use 1600x1067 (3:2). Crop to key section. Keep consistent. */
.project-image {
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border-radius: var(--border-radius);
  border: 1px solid rgba(0,0,0,0.05);
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Portfolio card links */
.portfolio .project h3 a {
  color: var(--primary-accent);
  font-weight: 600;
  transition: color 0.2s ease;
}

.portfolio .project h3 a:hover {
  color: var(--primary-accent-dark);
}

/* "Your site here" placeholder card */
.project-placeholder {
  border: 2px solid var(--primary-accent-dark);
  background: #fafafa;
}

.project-placeholder h3 {
  margin-bottom: 1rem;
}

.project-placeholder .btn-primary {
  padding: 0.5rem 1rem;
  font-size: var(--font-size-h3);
}

/* Tablet and up */
@media (min-width: 700px) {
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Desktop */
@media (min-width: 990px) {
  .portfolio-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}