* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', sans-serif;
  background-color: #f7f7f7;
  color: #333;
  padding: 20px;
}

.gallery-title {
  text-align: center;
  margin-bottom: 30px;
  font-size: 2rem;
  font-weight: 600;
  color: #444;
}

.gallery {
  column-count: 4;
  column-gap: 15px;
}

.gallery-item {
  margin-bottom: 15px;
  overflow: hidden;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.gallery-item:hover {
  transform: scale(1.02);
}

.gallery-item img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
}

/* Fullscreen Modal */
.modal {
  display: none;
  position: fixed;
  z-index: 100;
  padding-top: 80px;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.9);
}

.modal-content {
  margin: auto;
  display: block;
  max-width: 90%;
  max-height: 80%;
}

#caption {
  text-align: center;
  margin-top: 10px;
  color: #fff;
  font-size: 18px;
}

.close {
  position: absolute;
  top: 30px;
  right: 50px;
  color: white;
  font-size: 35px;
  font-weight: bold;
  cursor: pointer;
}

/* Responsive Columns */
@media (max-width: 1200px) {
  .gallery { column-count: 3; }
}
@media (max-width: 768px) {
  .gallery { column-count: 2; }
}
@media (max-width: 480px) {
  .gallery { column-count: 1; }
}

a{
    text-decoration: none;
}
.back-home {
  background-color: #ff5722;
  color: white;
  border: none;
  padding: 12px 18px;
  border-radius: 6px;
  cursor: pointer;
  margin: 20px auto;
  display: block;
  font-weight: bold;
  transition: background 0.3s;
}

.back-home:hover {
  background-color: #e64a19;
}

.top {
  position: sticky;
  top: 10px;
  z-index: 99;
}