body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #0f172a;
  color: white;
  overflow: hidden;
}

.screen {
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  flex: 0 0 auto;
  padding: 10px;
}

.grid {
  flex: 1;
  position: relative;
  overflow: hidden;
}


.tile {
  position: absolute;  
  background: #1e293b;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
}

.back-btn {
  padding: 10px 14px;
  background: #1e293b;
  border: none;
  border-radius: 10px;
  color: white;
}

.products {
  padding: 12px;
  overflow-y: auto;
}

.set {
  margin-bottom: 20px;
  padding: 10px;
  background: #1e293b;
  border-radius: 10px;
}

.product {
  background: #334155;
  margin-top: 6px;
  padding: 8px;
  border-radius: 6px;
}