body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #111;
  color: #fff;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  background: #1c1c1c;
  padding: 15px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #333;
}

header h1 {
  margin: 0;
  font-size: 1.5rem;
}

header .back-btn {
  color: #fff;
  text-decoration: none;
  font-size: 1rem;
}

.gallery {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 15px;
  padding: 15px;
}

.gallery-item {
  background: #1c1c1c;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 0 5px rgba(0,0,0,0.5);
  display: flex;
  flex-direction: column;
}

.gallery-item img {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.gallery-item p {
  padding: 10px;
  margin: 0;
  font-size: 0.9rem;
  color: #ccc;
}

footer {
  padding: 15px;
  background: #1c1c1c;
  text-align: center;
  border-top: 1px solid #333;
}

footer button {
  background: #e63946;
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
}

footer button:hover {
  background: #c62828;
}

.empty {
  grid-column: 1/-1;
  text-align: center;
  font-size: 1.2rem;
  color: #777;
  margin-top: 40px;
}