body {
  font-family: system-ui, sans-serif;
  background: #0f172a;
  color: #e5e7eb;
  margin: 0;
  padding: 30px;
}

h1 {
  text-align: center;
  margin-bottom: 30px;
}

.album {
  margin: auto;
  border-collapse: separate;
  border-spacing: 15px;
  table-layout: fixed;
  width: 900px; 
}

.album td {
  background: #111827;
  border-radius: 14px;
  padding: 10px;
  text-align: center;
}

.big-cell {
  height: 600px; 
}

.big-cell img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 12px;
}

.album td img:not(.big-cell img) {
  width: 140px;
  height: 100px;
  object-fit: cover;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.25s, box-shadow 0.25s;
}

.album td img:not(.big-cell img):hover {
  transform: scale(1.08);
  box-shadow: 0 10px 25px rgba(56,189,248,0.4);
}