.portfolio {
  padding: 60px 20px;
  background: #fff;
  text-align: center;
}

.container {
  max-width: 100%;
  margin: 0 auto;
  padding: 20px 45px;
  background-color: #000000;
}

.portfolio-title {
  font-size: 35px;
  font-weight: bold;
  margin-bottom: 15px;
  color: #1de32d;
  text-align: center;
}

.portfolio-description {
  font-size: 18px;
  color: #fff;
  line-height: 1.6;
  max-width: 800px;
  margin: 0 auto 40px auto;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
  justify-content: center;
  align-items: center;
}

.portfolio-item {
  background: transparent;
  border-radius: 8px;
  padding: 15px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
}

.portfolio-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.12);
}

.portfolio-item img {
  width: 100%;
}

.portfolio-item h3 {
  margin-top: 12px;
  font-size: 18px;
  color: #222;
}

/* Lightbox Styles */
.lightbox {
  display: none;
  position: fixed;
  z-index: 9999;
  padding-top: 60px;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.9);
  text-align: center;
}

.lightbox-content {
  margin: auto;
  display: block;
  max-width: 80%;
  max-height: 80%;
  border-radius: 8px;
}

.close {
  position: absolute;
  top: 20px;
  right: 40px;
  font-size: 40px;
  font-weight: bold;
  color: #fff;
  cursor: pointer;
}

.prev, .next {
  cursor: pointer;
  position: absolute;
  top: 50%;
  font-size: 40px;
  padding: 16px;
  color: white;
  user-select: none;
  transition: 0.3s;
}

.prev { left: 20px; }
.next { right: 20px; }

.prev:hover, .next:hover {
  color: #f0c040;
}