* {
  box-sizing: border-box;
  font-family: "Segoe UI", sans-serif;
}

body {
  margin: 0;
  background: #f4f6f9;
  color: #1c2b4a;
}

.gallery-section {
  padding: 60px 8%;
  text-align: center;
}

.gallery-section h1 {
  font-size: 36px;
  color: #0a2a66;
  margin-bottom: 10px;
}

.gallery-section p {
  color: #555;
  margin-bottom: 40px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.gallery-grid img {
  width: 100%;
  height: 230px;
  object-fit: cover;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.gallery-grid img:hover {
  transform: scale(1.03);
  box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

/* Lightbox */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  background: rgba(0,0,0,0.85);
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  z-index: 999;
}

.lightbox-img {
  max-width: 90%;
  max-height: 80%;
  border-radius: 8px;
  box-shadow: 0 0 30px rgba(0,0,0,0.6);
}

.close {
  position: absolute;
  top: 25px;
  right: 35px;
  font-size: 40px;
  color: #fff;
  cursor: pointer;
}

.download-btn {
  margin-top: 20px;
  background: #0a2a66;
  color: white;
  padding: 12px 28px;
  text-decoration: none;
  border-radius: 30px;
  font-weight: bold;
  transition: background 0.3s ease;
}

.download-btn:hover {
  background: #133c91;
}