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

body {
  font-family: 'Poppins', sans-serif;
  background-color: #f3f4f6;
  color: #333;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  background: linear-gradient(270deg, hsl(210, 65%, 67%), #5563DE, #74ABE2);
  animation: gradientMove 15s ease infinite;
  color: white;
  padding: 1.5rem;
  text-align: center;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
@keyframes gradientMove {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
.gallery-container {
  flex: 1;
  padding: 2rem;
  max-width: 1200px;
  margin: auto;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.gallery-grid img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  transition: transform 0.3s ease;
}

.gallery-grid img:hover {
  transform: scale(1.03);
}

footer {
  text-align: center;
  background: linear-gradient(270deg, hsl(210, 65%, 67%), #5563DE, #74ABE2);
  animation: gradientMove 15s ease infinite;
  color: white;
  padding: 1rem;
}
@media (min-width: 769px) and (max-width: 1024px) {
  .gallery-grid img {
    height: 400px;
  }
}
@media (min-width: 1024px) and
(max-width: 1440px) {
.gallery-grid img {
  height: auto;
  width: 100%;
}
}