.portfolio-section {
  padding: 80px 0;

}

.portfolio-title {
  text-align: center;
  font-weight: bold;
  margin-bottom: 40px;
}

.portfolio-filters {
  text-align: center;
  margin-bottom: 40px;
  padding: 0;
  list-style: none;
}

.portfolio-filters li {
  display: inline-block;
  margin: 6px;
  padding: 8px 20px;
  background: #f1f1f1;
  border-radius: 30px;
  cursor: pointer;
  transition: 0.3s;
  font-size: 14px;
  color: #111;

}

.portfolio-filters li.filter-active,
.portfolio-filters li:hover {
  background: #111;
  color: #fff;
}

.portfolio-item {
  margin-bottom: 30px;
}

.portfolio-card {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
}

.portfolio-card img {
  width: 100%;
  display: block;
  transition: 0.4s;
}

.portfolio-card:hover img {
  transform: scale(1.1);
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: 0.4s;
}

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

.portfolio-overlay a {
  color: #fff;
  text-decoration: none;
  border: 2px solid #fff;
  padding: 10px 22px;
  border-radius: 30px;
  font-size: 14px;
}