body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #0b0c10;
  color: #fff;
  text-align: center;
}

h1 {
  margin: 20px 0;
  font-size: 28px;
  color: #66fcf1;
}

/* Filter Buttons */
.filter-buttons {
  margin: 15px;
}

.filter-buttons button {
  background: #1f2833;
  border: 2px solid #66fcf1;
  color: #66fcf1;
  padding: 8px 15px;
  margin: 5px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.3s;
}

.filter-buttons button:hover {
  background: #66fcf1;
  color: #0b0c10;
}

/* Gallery grid */
.gallery {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 15px;
  padding: 20px;
  justify-items: center;
}

.gallery-img {
  width: 100%;
  max-width: 200px;
  height: 180px;
  object-fit: cover;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.3s, box-shadow 0.3s;
}

.gallery-img:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 12px rgba(0,0,0,0.7);
}

/* Responsive */
@media(max-width:1100px){
  .gallery { grid-template-columns: repeat(3, 1fr); }
}
@media(max-width:700px){
  .gallery { grid-template-columns: repeat(2, 1fr); }
}
@media(max-width:450px){
  .gallery { grid-template-columns: 1fr; }
}

/* Lightbox */
.lightbox {
  display: none;
  position: fixed;
  top:0; left:0;
  width: 100%; 
  height: 100%;
  background: rgba(0,0,0,0.95);
  z-index: 999;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

.lightbox-content {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100%;
}

.lightbox img {
  max-width: 80%;
  max-height: 80%;
  object-fit: contain;
  border-radius: 10px;
  margin: auto;
  display: block;
  transition: transform 0.3s;
}

/* Close button */
.close {
  position: absolute;
  top: 20px;
  right: 35px;
  font-size: 35px;
  color: #fff;
  cursor: pointer;
}

/* Navigation arrows */
.controls {
  position: absolute;
  top: 50%;
  width: 100%;
  display: flex;
  justify-content: space-between;
  font-size: 40px;
  padding: 0 30px;
  color: #fff;
  user-select: none;
}

.controls span {
  cursor: pointer;
  transition: 0.3s;
}

.controls span:hover {
  color: #66fcf1;
}