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

body {
  background: linear-gradient(135deg, #f7f7f7, #c6dced);
  margin-top: 5rem;
}

button {
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: box-shadow 0.2s ease;
}
button:hover {
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}
.gallery-img {
  transition: transform 0.3s ease;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}
.gallery-img:hover {
  transform: scale(1.05);
  opacity: 0.85;
  box-shadow: 0 10px 10px rgba(0, 10, 0, 0.4);
}

.lightbox {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  justify-content: center;
  align-items: center;
  z-index: 1050;
}
.lightbox img {
  max-width: 90%;
  max-height: 80%;
  border-radius: 8px;
}
.lightbox .close-btn {
  position: absolute;
  top: 20px;
  right: 30px;
  font-size: 24px;
  color: white;
  cursor: pointer;
}