/* ===== PORTFOLIO / CASE STUDIES ===== */
.portfolio {
  background: var(--bg);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.portfolio-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  transition: transform 0.3s ease, border-color 0.3s ease;
  position: relative;
}

.portfolio-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent-strong);
}

.portfolio-card:first-child {
  grid-column: 1 / -1;
}

.portfolio-image {
  width: 100%;
  height: 200px;
  overflow: hidden;
  position: relative;
}

.portfolio-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.portfolio-card:hover .portfolio-image img {
  transform: scale(1.04);
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, var(--portfolio-overlay) 100%);
  pointer-events: none;
}

.portfolio-category {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: var(--primary);
  border: 1px solid var(--border);
  color: var(--accent);
  padding: 0.3rem 0.8rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.portfolio-body {
  padding: 1.5rem;
}

.portfolio-body h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.portfolio-body p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
  line-height: 1.6;
}

.portfolio-metrics {
  display: flex;
  gap: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.metric {
  text-align: center;
  flex: 1;
}

.metric-value {
  font-family: "Outfit", sans-serif;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--accent);
  display: block;
}

.metric-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
  display: block;
}

@media (max-width: 1024px) {
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

  .portfolio-image {
    height: 180px;
  }
}