.portfolio-section {
  background: var(--bg-dark);
}

.portfolio-filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.portfolio-filters a {
  padding: 8px 20px;
  border-radius: 50px;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  text-decoration: none;
  font-family: 'Poppins', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: all 0.3s;
}

.portfolio-filters a.current,
.portfolio-filters a:hover {
  background: linear-gradient(135deg, var(--purple-bright), var(--purple-glow));
  border-color: transparent;
  color: white;
  box-shadow: 0 4px 20px rgba(124,58,237,0.4);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
  position: relative;
}

.card:hover {
  transform: translateY(-8px);
  border-color: rgba(124,58,237,0.5);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), var(--glow);
}

.card-img-wrapper {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/10;
  background: var(--purple-deep);
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-img-top {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
  display: block;
}

.card:hover .card-img-top {
  transform: scale(1.05);
}

.card-img-placeholder {
  width: 100%; height: 180px;
  background: linear-gradient(135deg, var(--purple-deep), var(--purple-mid));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: rgba(168,85,247,0.3);
}

.card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,8,18,0.9) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.4s;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 20px;
}

.card:hover .card-overlay {
  opacity: 1;
}

.card-body {
  padding: 20px 22px;
}

.card-title {
  font-family: 'Poppins', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.card-text {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 4px;
}

.card-text small {
  color: var(--text-muted);
  font-size: 0.72rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  background: transparent;
  border: 1px solid rgba(124,58,237,0.5);
  color: var(--purple-light);
  text-decoration: none;
  font-family: 'Poppins', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: 8px;
  transition: all 0.3s;
  margin-top: 12px;
}

.btn-primary:hover {
  background: var(--purple-bright);
  border-color: transparent;
  color: white;
}