body {
  margin: 0;
  font-family: Arial, sans-serif;
  background-color: #0a1a2f;
  color: #e0e6ed;
}

header {
  background-color: #0f2745;
  padding: 10px 20px;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

nav h1 {
  color: #4db8ff;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
}

nav ul li a {
  color: #e0e6ed;
  text-decoration: none;
}

section {
  padding: 50px 20px;
  text-align: center;
}

section h2 {
  color: #4db8ff;
}

button {
  background-color: #4db8ff;
  border: none;
  padding: 10px 20px;
  color: #0a1a2f;
  font-weight: bold;
  cursor: pointer;
  margin-top: 20px;
}

button:hover {
  background-color: #66ccff;
}

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

.gallery img {
  max-width: 600px;   /* limits width */
  max-height: 400px;  /* limits height */
  width: auto;        /* keeps aspect ratio */
  height: auto;       /* keeps aspect ratio */
  border-radius: 8px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
  object-fit: cover;  /* crops nicely if needed */
}